authorgravatar for andrew@ziglang.orgAndrew Kelley <andrew@ziglang.org> 2018-01-17 17:29:21-05:00
committergravatar for andrew@ziglang.orgAndrew Kelley <andrew@ziglang.org> 2018-01-17 17:29:21-05:00
log4aed7ea6f89a091aede10ccf0fb45b3ce12c710d
tree1e29f13ad17bfc841c33f6ac3d0ccb092404f409
parent48cd808185f54e935714539d101585a9a0a41673

update embedded LLD to 6.0.0rc1

868 files changed, 37862 insertions(+), 10297 deletions(-)

CMakeLists.txt+99-56
...@@ -64,97 +64,118 @@ else()...@@ -64,97 +64,118 @@ else()
64 include_directories(${LLVM_INCLUDE_DIRS})64 include_directories(${LLVM_INCLUDE_DIRS})
65 include_directories(${CLANG_INCLUDE_DIRS})65 include_directories(${CLANG_INCLUDE_DIRS})
66 set(EMBEDDED_LLD_LIB_SOURCES66 set(EMBEDDED_LLD_LIB_SOURCES
67 "${CMAKE_SOURCE_DIR}/deps/lld/Common/Args.cpp"
68 "${CMAKE_SOURCE_DIR}/deps/lld/Common/ErrorHandler.cpp"
69 "${CMAKE_SOURCE_DIR}/deps/lld/Common/Memory.cpp"
70 "${CMAKE_SOURCE_DIR}/deps/lld/Common/Reproduce.cpp"
71 "${CMAKE_SOURCE_DIR}/deps/lld/Common/Strings.cpp"
72 "${CMAKE_SOURCE_DIR}/deps/lld/Common/TargetOptionsCommandFlags.cpp"
73 "${CMAKE_SOURCE_DIR}/deps/lld/Common/Threads.cpp"
74 "${CMAKE_SOURCE_DIR}/deps/lld/Common/Version.cpp"
75 "${CMAKE_SOURCE_DIR}/deps/lld/lib/Core/DefinedAtom.cpp"
76 "${CMAKE_SOURCE_DIR}/deps/lld/lib/Core/Error.cpp"
77 "${CMAKE_SOURCE_DIR}/deps/lld/lib/Core/File.cpp"
78 "${CMAKE_SOURCE_DIR}/deps/lld/lib/Core/LinkingContext.cpp"
79 "${CMAKE_SOURCE_DIR}/deps/lld/lib/Core/Reader.cpp"
80 "${CMAKE_SOURCE_DIR}/deps/lld/lib/Core/Resolver.cpp"
81 "${CMAKE_SOURCE_DIR}/deps/lld/lib/Core/SymbolTable.cpp"
82 "${CMAKE_SOURCE_DIR}/deps/lld/lib/Core/Writer.cpp"
67 "${CMAKE_SOURCE_DIR}/deps/lld/lib/Driver/DarwinLdDriver.cpp"83 "${CMAKE_SOURCE_DIR}/deps/lld/lib/Driver/DarwinLdDriver.cpp"
68 "${CMAKE_SOURCE_DIR}/deps/lld/lib/Config/Version.cpp"84 "${CMAKE_SOURCE_DIR}/deps/lld/lib/ReaderWriter/FileArchive.cpp"
69 "${CMAKE_SOURCE_DIR}/deps/lld/lib/ReaderWriter/YAML/ReaderWriterYAML.cpp"
70 "${CMAKE_SOURCE_DIR}/deps/lld/lib/ReaderWriter/MachO/LayoutPass.cpp"
71 "${CMAKE_SOURCE_DIR}/deps/lld/lib/ReaderWriter/MachO/ArchHandler.cpp"85 "${CMAKE_SOURCE_DIR}/deps/lld/lib/ReaderWriter/MachO/ArchHandler.cpp"
86 "${CMAKE_SOURCE_DIR}/deps/lld/lib/ReaderWriter/MachO/ArchHandler_arm.cpp"
72 "${CMAKE_SOURCE_DIR}/deps/lld/lib/ReaderWriter/MachO/ArchHandler_arm64.cpp"87 "${CMAKE_SOURCE_DIR}/deps/lld/lib/ReaderWriter/MachO/ArchHandler_arm64.cpp"
73 "${CMAKE_SOURCE_DIR}/deps/lld/lib/ReaderWriter/MachO/ObjCPass.cpp"
74 "${CMAKE_SOURCE_DIR}/deps/lld/lib/ReaderWriter/MachO/MachONormalizedFileBinaryReader.cpp"
75 "${CMAKE_SOURCE_DIR}/deps/lld/lib/ReaderWriter/MachO/CompactUnwindPass.cpp"
76 "${CMAKE_SOURCE_DIR}/deps/lld/lib/ReaderWriter/MachO/MachONormalizedFileToAtoms.cpp"
77 "${CMAKE_SOURCE_DIR}/deps/lld/lib/ReaderWriter/MachO/TLVPass.cpp"
78 "${CMAKE_SOURCE_DIR}/deps/lld/lib/ReaderWriter/MachO/MachONormalizedFileYAML.cpp"
79 "${CMAKE_SOURCE_DIR}/deps/lld/lib/ReaderWriter/MachO/GOTPass.cpp"
80 "${CMAKE_SOURCE_DIR}/deps/lld/lib/ReaderWriter/MachO/ArchHandler_x86.cpp"88 "${CMAKE_SOURCE_DIR}/deps/lld/lib/ReaderWriter/MachO/ArchHandler_x86.cpp"
81 "${CMAKE_SOURCE_DIR}/deps/lld/lib/ReaderWriter/MachO/MachONormalizedFileBinaryWriter.cpp"
82 "${CMAKE_SOURCE_DIR}/deps/lld/lib/ReaderWriter/MachO/ArchHandler_x86_64.cpp"89 "${CMAKE_SOURCE_DIR}/deps/lld/lib/ReaderWriter/MachO/ArchHandler_x86_64.cpp"
90 "${CMAKE_SOURCE_DIR}/deps/lld/lib/ReaderWriter/MachO/CompactUnwindPass.cpp"
91 "${CMAKE_SOURCE_DIR}/deps/lld/lib/ReaderWriter/MachO/GOTPass.cpp"
92 "${CMAKE_SOURCE_DIR}/deps/lld/lib/ReaderWriter/MachO/LayoutPass.cpp"
83 "${CMAKE_SOURCE_DIR}/deps/lld/lib/ReaderWriter/MachO/MachOLinkingContext.cpp"93 "${CMAKE_SOURCE_DIR}/deps/lld/lib/ReaderWriter/MachO/MachOLinkingContext.cpp"
94 "${CMAKE_SOURCE_DIR}/deps/lld/lib/ReaderWriter/MachO/MachONormalizedFileBinaryReader.cpp"
95 "${CMAKE_SOURCE_DIR}/deps/lld/lib/ReaderWriter/MachO/MachONormalizedFileBinaryWriter.cpp"
96 "${CMAKE_SOURCE_DIR}/deps/lld/lib/ReaderWriter/MachO/MachONormalizedFileFromAtoms.cpp"
97 "${CMAKE_SOURCE_DIR}/deps/lld/lib/ReaderWriter/MachO/MachONormalizedFileToAtoms.cpp"
98 "${CMAKE_SOURCE_DIR}/deps/lld/lib/ReaderWriter/MachO/MachONormalizedFileYAML.cpp"
99 "${CMAKE_SOURCE_DIR}/deps/lld/lib/ReaderWriter/MachO/ObjCPass.cpp"
84 "${CMAKE_SOURCE_DIR}/deps/lld/lib/ReaderWriter/MachO/ShimPass.cpp"100 "${CMAKE_SOURCE_DIR}/deps/lld/lib/ReaderWriter/MachO/ShimPass.cpp"
85 "${CMAKE_SOURCE_DIR}/deps/lld/lib/ReaderWriter/MachO/WriterMachO.cpp"
86 "${CMAKE_SOURCE_DIR}/deps/lld/lib/ReaderWriter/MachO/StubsPass.cpp"101 "${CMAKE_SOURCE_DIR}/deps/lld/lib/ReaderWriter/MachO/StubsPass.cpp"
87 "${CMAKE_SOURCE_DIR}/deps/lld/lib/ReaderWriter/MachO/ArchHandler_arm.cpp"102 "${CMAKE_SOURCE_DIR}/deps/lld/lib/ReaderWriter/MachO/TLVPass.cpp"
88 "${CMAKE_SOURCE_DIR}/deps/lld/lib/ReaderWriter/MachO/MachONormalizedFileFromAtoms.cpp"103 "${CMAKE_SOURCE_DIR}/deps/lld/lib/ReaderWriter/MachO/WriterMachO.cpp"
89 "${CMAKE_SOURCE_DIR}/deps/lld/lib/ReaderWriter/FileArchive.cpp"104 "${CMAKE_SOURCE_DIR}/deps/lld/lib/ReaderWriter/YAML/ReaderWriterYAML.cpp"
90 "${CMAKE_SOURCE_DIR}/deps/lld/lib/Core/TargetOptionsCommandFlags.cpp"
91 "${CMAKE_SOURCE_DIR}/deps/lld/lib/Core/File.cpp"
92 "${CMAKE_SOURCE_DIR}/deps/lld/lib/Core/Error.cpp"
93 "${CMAKE_SOURCE_DIR}/deps/lld/lib/Core/SymbolTable.cpp"
94 "${CMAKE_SOURCE_DIR}/deps/lld/lib/Core/Reader.cpp"
95 "${CMAKE_SOURCE_DIR}/deps/lld/lib/Core/Reproduce.cpp"
96 "${CMAKE_SOURCE_DIR}/deps/lld/lib/Core/Writer.cpp"
97 "${CMAKE_SOURCE_DIR}/deps/lld/lib/Core/LinkingContext.cpp"
98 "${CMAKE_SOURCE_DIR}/deps/lld/lib/Core/Resolver.cpp"
99 "${CMAKE_SOURCE_DIR}/deps/lld/lib/Core/DefinedAtom.cpp"
100 )105 )
101 set(EMBEDDED_LLD_ELF_SOURCES106 set(EMBEDDED_LLD_ELF_SOURCES
102 "${CMAKE_SOURCE_DIR}/deps/lld/ELF/ScriptLexer.cpp"107 "${CMAKE_SOURCE_DIR}/deps/lld/ELF/AArch64ErrataFix.cpp"
108 "${CMAKE_SOURCE_DIR}/deps/lld/ELF/Arch/AArch64.cpp"
103 "${CMAKE_SOURCE_DIR}/deps/lld/ELF/Arch/AMDGPU.cpp"109 "${CMAKE_SOURCE_DIR}/deps/lld/ELF/Arch/AMDGPU.cpp"
104 "${CMAKE_SOURCE_DIR}/deps/lld/ELF/Arch/PPC.cpp"
105 "${CMAKE_SOURCE_DIR}/deps/lld/ELF/Arch/ARM.cpp"110 "${CMAKE_SOURCE_DIR}/deps/lld/ELF/Arch/ARM.cpp"
106 "${CMAKE_SOURCE_DIR}/deps/lld/ELF/Arch/AVR.cpp"111 "${CMAKE_SOURCE_DIR}/deps/lld/ELF/Arch/AVR.cpp"
107 "${CMAKE_SOURCE_DIR}/deps/lld/ELF/Arch/SPARCV9.cpp"
108 "${CMAKE_SOURCE_DIR}/deps/lld/ELF/Arch/Mips.cpp"112 "${CMAKE_SOURCE_DIR}/deps/lld/ELF/Arch/Mips.cpp"
109 "${CMAKE_SOURCE_DIR}/deps/lld/ELF/Arch/AArch64.cpp"
110 "${CMAKE_SOURCE_DIR}/deps/lld/ELF/Arch/X86_64.cpp"
111 "${CMAKE_SOURCE_DIR}/deps/lld/ELF/Arch/PPC64.cpp"
112 "${CMAKE_SOURCE_DIR}/deps/lld/ELF/Arch/MipsArchTree.cpp"113 "${CMAKE_SOURCE_DIR}/deps/lld/ELF/Arch/MipsArchTree.cpp"
114 "${CMAKE_SOURCE_DIR}/deps/lld/ELF/Arch/PPC.cpp"
115 "${CMAKE_SOURCE_DIR}/deps/lld/ELF/Arch/PPC64.cpp"
116 "${CMAKE_SOURCE_DIR}/deps/lld/ELF/Arch/SPARCV9.cpp"
113 "${CMAKE_SOURCE_DIR}/deps/lld/ELF/Arch/X86.cpp"117 "${CMAKE_SOURCE_DIR}/deps/lld/ELF/Arch/X86.cpp"
114 "${CMAKE_SOURCE_DIR}/deps/lld/ELF/GdbIndex.cpp"118 "${CMAKE_SOURCE_DIR}/deps/lld/ELF/Arch/X86_64.cpp"
115 "${CMAKE_SOURCE_DIR}/deps/lld/ELF/Driver.cpp"119 "${CMAKE_SOURCE_DIR}/deps/lld/ELF/Driver.cpp"
116 "${CMAKE_SOURCE_DIR}/deps/lld/ELF/Relocations.cpp"120 "${CMAKE_SOURCE_DIR}/deps/lld/ELF/DriverUtils.cpp"
117 "${CMAKE_SOURCE_DIR}/deps/lld/ELF/Error.cpp"
118 "${CMAKE_SOURCE_DIR}/deps/lld/ELF/LTO.cpp"
119 "${CMAKE_SOURCE_DIR}/deps/lld/ELF/Strings.cpp"
120 "${CMAKE_SOURCE_DIR}/deps/lld/ELF/ScriptParser.cpp"
121 "${CMAKE_SOURCE_DIR}/deps/lld/ELF/MarkLive.cpp"
122 "${CMAKE_SOURCE_DIR}/deps/lld/ELF/SyntheticSections.cpp"
123 "${CMAKE_SOURCE_DIR}/deps/lld/ELF/SymbolTable.cpp"
124 "${CMAKE_SOURCE_DIR}/deps/lld/ELF/LinkerScript.cpp"
125 "${CMAKE_SOURCE_DIR}/deps/lld/ELF/EhFrame.cpp"121 "${CMAKE_SOURCE_DIR}/deps/lld/ELF/EhFrame.cpp"
126 "${CMAKE_SOURCE_DIR}/deps/lld/ELF/Target.cpp"
127 "${CMAKE_SOURCE_DIR}/deps/lld/ELF/Filesystem.cpp"122 "${CMAKE_SOURCE_DIR}/deps/lld/ELF/Filesystem.cpp"
128 "${CMAKE_SOURCE_DIR}/deps/lld/ELF/OutputSections.cpp"123 "${CMAKE_SOURCE_DIR}/deps/lld/ELF/GdbIndex.cpp"
129 "${CMAKE_SOURCE_DIR}/deps/lld/ELF/Symbols.cpp"
130 "${CMAKE_SOURCE_DIR}/deps/lld/ELF/ICF.cpp"124 "${CMAKE_SOURCE_DIR}/deps/lld/ELF/ICF.cpp"
131 "${CMAKE_SOURCE_DIR}/deps/lld/ELF/InputFiles.cpp"125 "${CMAKE_SOURCE_DIR}/deps/lld/ELF/InputFiles.cpp"
132 "${CMAKE_SOURCE_DIR}/deps/lld/ELF/Thunks.cpp"
133 "${CMAKE_SOURCE_DIR}/deps/lld/ELF/DriverUtils.cpp"
134 "${CMAKE_SOURCE_DIR}/deps/lld/ELF/Writer.cpp"
135 "${CMAKE_SOURCE_DIR}/deps/lld/ELF/InputSection.cpp"126 "${CMAKE_SOURCE_DIR}/deps/lld/ELF/InputSection.cpp"
127 "${CMAKE_SOURCE_DIR}/deps/lld/ELF/LTO.cpp"
128 "${CMAKE_SOURCE_DIR}/deps/lld/ELF/LinkerScript.cpp"
136 "${CMAKE_SOURCE_DIR}/deps/lld/ELF/MapFile.cpp"129 "${CMAKE_SOURCE_DIR}/deps/lld/ELF/MapFile.cpp"
130 "${CMAKE_SOURCE_DIR}/deps/lld/ELF/MarkLive.cpp"
131 "${CMAKE_SOURCE_DIR}/deps/lld/ELF/OutputSections.cpp"
132 "${CMAKE_SOURCE_DIR}/deps/lld/ELF/Relocations.cpp"
133 "${CMAKE_SOURCE_DIR}/deps/lld/ELF/ScriptLexer.cpp"
134 "${CMAKE_SOURCE_DIR}/deps/lld/ELF/ScriptParser.cpp"
135 "${CMAKE_SOURCE_DIR}/deps/lld/ELF/Strings.cpp"
136 "${CMAKE_SOURCE_DIR}/deps/lld/ELF/SymbolTable.cpp"
137 "${CMAKE_SOURCE_DIR}/deps/lld/ELF/Symbols.cpp"
138 "${CMAKE_SOURCE_DIR}/deps/lld/ELF/SyntheticSections.cpp"
139 "${CMAKE_SOURCE_DIR}/deps/lld/ELF/Target.cpp"
140 "${CMAKE_SOURCE_DIR}/deps/lld/ELF/Thunks.cpp"
141 "${CMAKE_SOURCE_DIR}/deps/lld/ELF/Writer.cpp"
137 )142 )
143
138 set(EMBEDDED_LLD_COFF_SOURCES144 set(EMBEDDED_LLD_COFF_SOURCES
145 "${CMAKE_SOURCE_DIR}/deps/lld/COFF/Chunks.cpp"
139 "${CMAKE_SOURCE_DIR}/deps/lld/COFF/DLL.cpp"146 "${CMAKE_SOURCE_DIR}/deps/lld/COFF/DLL.cpp"
140 "${CMAKE_SOURCE_DIR}/deps/lld/COFF/Driver.cpp"147 "${CMAKE_SOURCE_DIR}/deps/lld/COFF/Driver.cpp"
141 "${CMAKE_SOURCE_DIR}/deps/lld/COFF/Chunks.cpp"148 "${CMAKE_SOURCE_DIR}/deps/lld/COFF/DriverUtils.cpp"
142 "${CMAKE_SOURCE_DIR}/deps/lld/COFF/PDB.cpp"149 "${CMAKE_SOURCE_DIR}/deps/lld/COFF/ICF.cpp"
143 "${CMAKE_SOURCE_DIR}/deps/lld/COFF/Error.cpp"150 "${CMAKE_SOURCE_DIR}/deps/lld/COFF/InputFiles.cpp"
144 "${CMAKE_SOURCE_DIR}/deps/lld/COFF/LTO.cpp"151 "${CMAKE_SOURCE_DIR}/deps/lld/COFF/LTO.cpp"
145 "${CMAKE_SOURCE_DIR}/deps/lld/COFF/Strings.cpp"152 "${CMAKE_SOURCE_DIR}/deps/lld/COFF/MapFile.cpp"
146 "${CMAKE_SOURCE_DIR}/deps/lld/COFF/MarkLive.cpp"153 "${CMAKE_SOURCE_DIR}/deps/lld/COFF/MarkLive.cpp"
154 "${CMAKE_SOURCE_DIR}/deps/lld/COFF/MinGW.cpp"
155 "${CMAKE_SOURCE_DIR}/deps/lld/COFF/PDB.cpp"
156 "${CMAKE_SOURCE_DIR}/deps/lld/COFF/Strings.cpp"
147 "${CMAKE_SOURCE_DIR}/deps/lld/COFF/SymbolTable.cpp"157 "${CMAKE_SOURCE_DIR}/deps/lld/COFF/SymbolTable.cpp"
148 "${CMAKE_SOURCE_DIR}/deps/lld/COFF/Symbols.cpp"158 "${CMAKE_SOURCE_DIR}/deps/lld/COFF/Symbols.cpp"
149 "${CMAKE_SOURCE_DIR}/deps/lld/COFF/ICF.cpp"
150 "${CMAKE_SOURCE_DIR}/deps/lld/COFF/InputFiles.cpp"
151 "${CMAKE_SOURCE_DIR}/deps/lld/COFF/DriverUtils.cpp"
152 "${CMAKE_SOURCE_DIR}/deps/lld/COFF/Writer.cpp"159 "${CMAKE_SOURCE_DIR}/deps/lld/COFF/Writer.cpp"
153 "${CMAKE_SOURCE_DIR}/deps/lld/COFF/MapFile.cpp"160 )
161 set(EMBEDDED_LLD_MINGW_SOURCES
162 "${CMAKE_SOURCE_DIR}/deps/lld/MinGW/Driver.cpp"
163 )
164 set(EMBEDDED_LLD_WASM_SOURCES
165 "${CMAKE_SOURCE_DIR}/deps/lld/wasm/Driver.cpp"
166 "${CMAKE_SOURCE_DIR}/deps/lld/wasm/InputFiles.cpp"
167 "${CMAKE_SOURCE_DIR}/deps/lld/wasm/InputSegment.cpp"
168 "${CMAKE_SOURCE_DIR}/deps/lld/wasm/OutputSections.cpp"
169 "${CMAKE_SOURCE_DIR}/deps/lld/wasm/Symbols.cpp"
170 "${CMAKE_SOURCE_DIR}/deps/lld/wasm/SymbolTable.cpp"
171 "${CMAKE_SOURCE_DIR}/deps/lld/wasm/Writer.cpp"
172 "${CMAKE_SOURCE_DIR}/deps/lld/wasm/WriterUtils.cpp"
154 )173 )
155 add_library(embedded_lld_lib ${EMBEDDED_LLD_LIB_SOURCES})174 add_library(embedded_lld_lib ${EMBEDDED_LLD_LIB_SOURCES})
156 add_library(embedded_lld_elf ${EMBEDDED_LLD_ELF_SOURCES})175 add_library(embedded_lld_elf ${EMBEDDED_LLD_ELF_SOURCES})
157 add_library(embedded_lld_coff ${EMBEDDED_LLD_COFF_SOURCES})176 add_library(embedded_lld_coff ${EMBEDDED_LLD_COFF_SOURCES})
177 add_library(embedded_lld_mingw ${EMBEDDED_LLD_MINGW_SOURCES})
178 add_library(embedded_lld_wasm ${EMBEDDED_LLD_WASM_SOURCES})
158 if(MSVC)179 if(MSVC)
159 set(ZIG_LLD_COMPILE_FLAGS "-std=c++11 -D_CRT_SECURE_NO_WARNINGS /w")180 set(ZIG_LLD_COMPILE_FLAGS "-std=c++11 -D_CRT_SECURE_NO_WARNINGS /w")
160 else()181 else()
...@@ -172,6 +193,14 @@ else()...@@ -172,6 +193,14 @@ else()
172 COMPILE_FLAGS ${ZIG_LLD_COMPILE_FLAGS}193 COMPILE_FLAGS ${ZIG_LLD_COMPILE_FLAGS}
173 LINK_FLAGS " "194 LINK_FLAGS " "
174 )195 )
196 set_target_properties(embedded_lld_mingw PROPERTIES
197 COMPILE_FLAGS ${ZIG_LLD_COMPILE_FLAGS}
198 LINK_FLAGS " "
199 )
200 set_target_properties(embedded_lld_wasm PROPERTIES
201 COMPILE_FLAGS ${ZIG_LLD_COMPILE_FLAGS}
202 LINK_FLAGS " "
203 )
175 target_include_directories(embedded_lld_lib PUBLIC204 target_include_directories(embedded_lld_lib PUBLIC
176 "${CMAKE_SOURCE_DIR}/deps/lld/include"205 "${CMAKE_SOURCE_DIR}/deps/lld/include"
177 "${CMAKE_SOURCE_DIR}/deps/lld-prebuilt"206 "${CMAKE_SOURCE_DIR}/deps/lld-prebuilt"
...@@ -188,13 +217,27 @@ else()...@@ -188,13 +217,27 @@ else()
188 "${CMAKE_SOURCE_DIR}/deps/lld-prebuilt/COFF"217 "${CMAKE_SOURCE_DIR}/deps/lld-prebuilt/COFF"
189 "${CMAKE_SOURCE_DIR}/deps/lld-prebuilt"218 "${CMAKE_SOURCE_DIR}/deps/lld-prebuilt"
190 )219 )
220 target_include_directories(embedded_lld_mingw PUBLIC
221 "${CMAKE_SOURCE_DIR}/deps/lld/MinGW"
222 "${CMAKE_SOURCE_DIR}/deps/lld/include"
223 "${CMAKE_SOURCE_DIR}/deps/lld-prebuilt/MinGW"
224 "${CMAKE_SOURCE_DIR}/deps/lld-prebuilt"
225 )
226 target_include_directories(embedded_lld_wasm PUBLIC
227 "${CMAKE_SOURCE_DIR}/deps/lld/wasm"
228 "${CMAKE_SOURCE_DIR}/deps/lld/include"
229 "${CMAKE_SOURCE_DIR}/deps/lld-prebuilt/wasm"
230 "${CMAKE_SOURCE_DIR}/deps/lld-prebuilt"
231 )
191 set(LLD_INCLUDE_DIRS "")232 set(LLD_INCLUDE_DIRS "")
192 set(LLD_LIBRARIES233 set(LLD_LIBRARIES
193 embedded_lld_elf234 embedded_lld_elf
194 embedded_lld_coff235 embedded_lld_coff
236 embedded_lld_mingw
237 embedded_lld_wasm
195 embedded_lld_lib238 embedded_lld_lib
196 )239 )
197 install(TARGETS embedded_lld_elf embedded_lld_coff embedded_lld_lib DESTINATION "${ZIG_CPP_LIB_DIR}")240 install(TARGETS embedded_lld_elf embedded_lld_coff embedded_lld_mingw embedded_lld_wasm embedded_lld_lib DESTINATION "${ZIG_CPP_LIB_DIR}")
198endif()241endif()
199242
200# No patches have been applied to SoftFloat-3d243# No patches have been applied to SoftFloat-3d
deps/lld-prebuilt/COFF/Options.inc+61-24
...@@ -12,9 +12,10 @@...@@ -12,9 +12,10 @@
12#ifdef PREFIX12#ifdef PREFIX
13#define COMMA ,13#define COMMA ,
14PREFIX(prefix_0, {nullptr})14PREFIX(prefix_0, {nullptr})
15PREFIX(prefix_3, {"--" COMMA nullptr})
15PREFIX(prefix_2, {"/" COMMA "-" COMMA nullptr})16PREFIX(prefix_2, {"/" COMMA "-" COMMA nullptr})
16PREFIX(prefix_1, {"/" COMMA "-" COMMA "-?" COMMA nullptr})17PREFIX(prefix_1, {"/" COMMA "-" COMMA "-?" COMMA nullptr})
17PREFIX(prefix_3, {"/?" COMMA "-?" COMMA nullptr})18PREFIX(prefix_4, {"/?" COMMA "-?" COMMA nullptr})
18#undef COMMA19#undef COMMA
19#endif // PREFIX20#endif // PREFIX
2021
...@@ -30,19 +31,26 @@ OPTION(prefix_0, "<input>", INPUT, Input, INVALID, INVALID, nullptr, 0, 0, nullp...@@ -30,19 +31,26 @@ OPTION(prefix_0, "<input>", INPUT, Input, INVALID, INVALID, nullptr, 0, 0, nullp
30OPTION(prefix_0, "<unknown>", UNKNOWN, Unknown, INVALID, INVALID, nullptr, 0, 0, nullptr, nullptr, nullptr)31OPTION(prefix_0, "<unknown>", UNKNOWN, Unknown, INVALID, INVALID, nullptr, 0, 0, nullptr, nullptr, nullptr)
31OPTION(prefix_1, "align:", align, Joined, INVALID, INVALID, nullptr, 0, 0,32OPTION(prefix_1, "align:", align, Joined, INVALID, INVALID, nullptr, 0, 0,
32 "Section alignment", nullptr, nullptr)33 "Section alignment", nullptr, nullptr)
34OPTION(prefix_1, "aligncomm:", aligncomm, Joined, INVALID, INVALID, nullptr, 0, 0,
35 "Set common symbol alignment", nullptr, nullptr)
33OPTION(prefix_1, "allowbind:no", allowbind_no, Flag, INVALID, INVALID, nullptr, 0, 0,36OPTION(prefix_1, "allowbind:no", allowbind_no, Flag, INVALID, INVALID, nullptr, 0, 0,
34 "Disable DLL binding", nullptr, nullptr)37 "Disable DLL binding", nullptr, nullptr)
35OPTION(prefix_1, "allowbind", allowbind, Flag, INVALID, INVALID, nullptr, 0, 0, nullptr, nullptr, nullptr)38OPTION(prefix_1, "allowbind", allowbind, Flag, INVALID, INVALID, nullptr, 0, 0,
39 "Enable DLL binding (default)", nullptr, nullptr)
36OPTION(prefix_1, "allowisolation:no", allowisolation_no, Flag, INVALID, INVALID, nullptr, 0, 0,40OPTION(prefix_1, "allowisolation:no", allowisolation_no, Flag, INVALID, INVALID, nullptr, 0, 0,
37 "Set NO_ISOLATION bit", nullptr, nullptr)41 "Disable DLL isolation", nullptr, nullptr)
38OPTION(prefix_1, "allowisolation", allowisolation, Flag, INVALID, INVALID, nullptr, 0, 0, nullptr, nullptr, nullptr)42OPTION(prefix_1, "allowisolation", allowisolation, Flag, INVALID, INVALID, nullptr, 0, 0,
43 "Enable DLL isolation (default)", nullptr, nullptr)
39OPTION(prefix_1, "alternatename:", alternatename, Joined, INVALID, INVALID, nullptr, 0, 0,44OPTION(prefix_1, "alternatename:", alternatename, Joined, INVALID, INVALID, nullptr, 0, 0,
40 "Define weak alias", nullptr, nullptr)45 "Define weak alias", nullptr, nullptr)
41OPTION(prefix_1, "appcontainer:no", appcontainer_no, Flag, INVALID, INVALID, nullptr, 0, 0,46OPTION(prefix_1, "appcontainer:no", appcontainer_no, Flag, INVALID, INVALID, nullptr, 0, 0,
47 "Image can run outside an app container (default)", nullptr, nullptr)
48OPTION(prefix_1, "appcontainer", appcontainer, Flag, INVALID, INVALID, nullptr, 0, 0,
42 "Image can only be run in an app container", nullptr, nullptr)49 "Image can only be run in an app container", nullptr, nullptr)
43OPTION(prefix_1, "appcontainer", appcontainer, Flag, INVALID, INVALID, nullptr, 0, 0, nullptr, nullptr, nullptr)
44OPTION(prefix_1, "base:", base, Joined, INVALID, INVALID, nullptr, 0, 0,50OPTION(prefix_1, "base:", base, Joined, INVALID, INVALID, nullptr, 0, 0,
45 "Base address of the program", nullptr, nullptr)51 "Base address of the program", nullptr, nullptr)
52OPTION(prefix_1, "debug:dwarf", debug_dwarf, Flag, INVALID, INVALID, nullptr, 0, 0, nullptr, nullptr, nullptr)
53OPTION(prefix_1, "debug:ghash", debug_ghash, Flag, INVALID, INVALID, nullptr, 0, 0, nullptr, nullptr, nullptr)
46OPTION(prefix_1, "debugtype:", debugtype, Joined, INVALID, INVALID, nullptr, 0, 0,54OPTION(prefix_1, "debugtype:", debugtype, Joined, INVALID, INVALID, nullptr, 0, 0,
47 "Debug Info Options", nullptr, nullptr)55 "Debug Info Options", nullptr, nullptr)
48OPTION(prefix_1, "debug", debug, Flag, INVALID, INVALID, nullptr, 0, 0,56OPTION(prefix_1, "debug", debug, Flag, INVALID, INVALID, nullptr, 0, 0,
...@@ -60,22 +68,25 @@ OPTION(prefix_1, "dll", dll, Flag, INVALID, INVALID, nullptr, 0, 0,...@@ -60,22 +68,25 @@ OPTION(prefix_1, "dll", dll, Flag, INVALID, INVALID, nullptr, 0, 0,
60OPTION(prefix_1, "driver:", driver, Joined, INVALID, INVALID, nullptr, 0, 0,68OPTION(prefix_1, "driver:", driver, Joined, INVALID, INVALID, nullptr, 0, 0,
61 "Generate a Windows NT Kernel Mode Driver", nullptr, nullptr)69 "Generate a Windows NT Kernel Mode Driver", nullptr, nullptr)
62OPTION(prefix_1, "dynamicbase:no", dynamicbase_no, Flag, INVALID, INVALID, nullptr, 0, 0,70OPTION(prefix_1, "dynamicbase:no", dynamicbase_no, Flag, INVALID, INVALID, nullptr, 0, 0,
63 "Disable address space layout randomization", nullptr, nullptr)71 "Disable ASLR (default when /fixed)", nullptr, nullptr)
64OPTION(prefix_1, "dynamicbase", dynamicbase, Flag, INVALID, INVALID, nullptr, 0, 0, nullptr, nullptr, nullptr)72OPTION(prefix_1, "dynamicbase", dynamicbase, Flag, INVALID, INVALID, nullptr, 0, 0,
73 "Enable ASLR (default unless /fixed)", nullptr, nullptr)
65OPTION(prefix_1, "editandcontinue", editandcontinue, Flag, INVALID, INVALID, nullptr, 0, 0, nullptr, nullptr, nullptr)74OPTION(prefix_1, "editandcontinue", editandcontinue, Flag, INVALID, INVALID, nullptr, 0, 0, nullptr, nullptr, nullptr)
66OPTION(prefix_1, "entry:", entry, Joined, INVALID, INVALID, nullptr, 0, 0,75OPTION(prefix_1, "entry:", entry, Joined, INVALID, INVALID, nullptr, 0, 0,
67 "Name of entry point symbol", nullptr, nullptr)76 "Name of entry point symbol", nullptr, nullptr)
68OPTION(prefix_1, "errorlimit:", errorlimit, Joined, INVALID, INVALID, nullptr, 0, 0,77OPTION(prefix_1, "errorlimit:", errorlimit, Joined, INVALID, INVALID, nullptr, 0, 0,
69 "Maximum number of errors to emit before stopping (0 = no limit)", nullptr, nullptr)78 "Maximum number of errors to emit before stopping (0 = no limit)", nullptr, nullptr)
70OPTION(prefix_1, "errorreport:", errorreport, Joined, INVALID, INVALID, nullptr, 0, 0, nullptr, nullptr, nullptr)79OPTION(prefix_1, "errorreport:", errorreport, Joined, INVALID, INVALID, nullptr, 0, 0, nullptr, nullptr, nullptr)
80OPTION(prefix_1, "export-all-symbols", export_all_symbols, Flag, INVALID, INVALID, nullptr, 0, 0, nullptr, nullptr, nullptr)
71OPTION(prefix_1, "export:", export, Joined, INVALID, INVALID, nullptr, 0, 0,81OPTION(prefix_1, "export:", export, Joined, INVALID, INVALID, nullptr, 0, 0,
72 "Export a function", nullptr, nullptr)82 "Export a function", nullptr, nullptr)
73OPTION(prefix_1, "failifmismatch:", failifmismatch, Joined, INVALID, INVALID, nullptr, 0, 0,83OPTION(prefix_1, "failifmismatch:", failifmismatch, Joined, INVALID, INVALID, nullptr, 0, 0,
74 "", nullptr, nullptr)84 "", nullptr, nullptr)
75OPTION(prefix_1, "fastfail", fastfail, Flag, INVALID, INVALID, nullptr, 0, 0, nullptr, nullptr, nullptr)85OPTION(prefix_1, "fastfail", fastfail, Flag, INVALID, INVALID, nullptr, 0, 0, nullptr, nullptr, nullptr)
76OPTION(prefix_1, "fixed:no", fixed_no, Flag, INVALID, INVALID, nullptr, 0, 0,86OPTION(prefix_1, "fixed:no", fixed_no, Flag, INVALID, INVALID, nullptr, 0, 0,
77 "Enable base relocations", nullptr, nullptr)87 "Enable base relocations (default)", nullptr, nullptr)
78OPTION(prefix_1, "fixed", fixed, Flag, INVALID, INVALID, nullptr, 0, 0, nullptr, nullptr, nullptr)88OPTION(prefix_1, "fixed", fixed, Flag, INVALID, INVALID, nullptr, 0, 0,
89 "Disable base relocations", nullptr, nullptr)
79OPTION(prefix_1, "force:unresolved", force_unresolved, Flag, INVALID, INVALID, nullptr, 0, 0, nullptr, nullptr, nullptr)90OPTION(prefix_1, "force:unresolved", force_unresolved, Flag, INVALID, INVALID, nullptr, 0, 0, nullptr, nullptr, nullptr)
80OPTION(prefix_1, "force", force, Flag, INVALID, INVALID, nullptr, 0, 0,91OPTION(prefix_1, "force", force, Flag, INVALID, INVALID, nullptr, 0, 0,
81 "Allow undefined symbols when creating executables", nullptr, nullptr)92 "Allow undefined symbols when creating executables", nullptr, nullptr)
...@@ -85,10 +96,12 @@ OPTION(prefix_1, "heap:", heap, Joined, INVALID, INVALID, nullptr, 0, 0,...@@ -85,10 +96,12 @@ OPTION(prefix_1, "heap:", heap, Joined, INVALID, INVALID, nullptr, 0, 0,
85 "Size of the heap", nullptr, nullptr)96 "Size of the heap", nullptr, nullptr)
86OPTION(prefix_1, "help", help, Flag, INVALID, INVALID, nullptr, 0, 0, nullptr, nullptr, nullptr)97OPTION(prefix_1, "help", help, Flag, INVALID, INVALID, nullptr, 0, 0, nullptr, nullptr, nullptr)
87OPTION(prefix_1, "highentropyva:no", highentropyva_no, Flag, INVALID, INVALID, nullptr, 0, 0,98OPTION(prefix_1, "highentropyva:no", highentropyva_no, Flag, INVALID, INVALID, nullptr, 0, 0,
88 "Set HIGH_ENTROPY_VA bit", nullptr, nullptr)99 "Disable 64-bit ASLR", nullptr, nullptr)
89OPTION(prefix_1, "highentropyva", highentropyva, Flag, INVALID, INVALID, nullptr, 0, 0, nullptr, nullptr, nullptr)100OPTION(prefix_1, "highentropyva", highentropyva, Flag, INVALID, INVALID, nullptr, 0, 0,
101 "Enable 64-bit ASLR (default on 64-bit)", nullptr, nullptr)
90OPTION(prefix_1, "idlout:", idlout, Joined, INVALID, INVALID, nullptr, 0, 0, nullptr, nullptr, nullptr)102OPTION(prefix_1, "idlout:", idlout, Joined, INVALID, INVALID, nullptr, 0, 0, nullptr, nullptr, nullptr)
91OPTION(prefix_1, "ignore:", ignore, Joined, INVALID, INVALID, nullptr, 0, 0, nullptr, nullptr, nullptr)103OPTION(prefix_1, "ignore:", ignore, Joined, INVALID, INVALID, nullptr, 0, 0,
104 "Specify warning codes to ignore", nullptr, nullptr)
92OPTION(prefix_1, "ignoreidl", ignoreidl, Flag, INVALID, INVALID, nullptr, 0, 0, nullptr, nullptr, nullptr)105OPTION(prefix_1, "ignoreidl", ignoreidl, Flag, INVALID, INVALID, nullptr, 0, 0, nullptr, nullptr, nullptr)
93OPTION(prefix_1, "implib:", implib, Joined, INVALID, INVALID, nullptr, 0, 0,106OPTION(prefix_1, "implib:", implib, Joined, INVALID, INVALID, nullptr, 0, 0,
94 "Import library name", nullptr, nullptr)107 "Import library name", nullptr, nullptr)
...@@ -97,14 +110,20 @@ OPTION(prefix_2, "include:", incl, Joined, INVALID, INVALID, nullptr, 0, 0,...@@ -97,14 +110,20 @@ OPTION(prefix_2, "include:", incl, Joined, INVALID, INVALID, nullptr, 0, 0,
97OPTION(prefix_1, "incremental:no", no_incremental, Flag, INVALID, INVALID, nullptr, 0, 0, nullptr, nullptr, nullptr)110OPTION(prefix_1, "incremental:no", no_incremental, Flag, INVALID, INVALID, nullptr, 0, 0, nullptr, nullptr, nullptr)
98OPTION(prefix_1, "incremental", incremental, Flag, INVALID, INVALID, nullptr, 0, 0, nullptr, nullptr, nullptr)111OPTION(prefix_1, "incremental", incremental, Flag, INVALID, INVALID, nullptr, 0, 0, nullptr, nullptr, nullptr)
99OPTION(prefix_1, "largeaddressaware:no", largeaddressaware_no, Flag, INVALID, INVALID, nullptr, 0, 0,112OPTION(prefix_1, "largeaddressaware:no", largeaddressaware_no, Flag, INVALID, INVALID, nullptr, 0, 0,
100 "Disable large addresses", nullptr, nullptr)113 "Disable large addresses (default on 32-bit)", nullptr, nullptr)
101OPTION(prefix_1, "largeaddressaware", largeaddressaware, Flag, INVALID, INVALID, nullptr, 0, 0, nullptr, nullptr, nullptr)114OPTION(prefix_1, "largeaddressaware", largeaddressaware, Flag, INVALID, INVALID, nullptr, 0, 0,
115 "Enable large addresses (default on 64-bit)", nullptr, nullptr)
102OPTION(prefix_1, "libpath:", libpath, Joined, INVALID, INVALID, nullptr, 0, 0,116OPTION(prefix_1, "libpath:", libpath, Joined, INVALID, INVALID, nullptr, 0, 0,
103 "Additional library search path", nullptr, nullptr)117 "Additional library search path", nullptr, nullptr)
104OPTION(prefix_1, "linkrepro:", linkrepro, Joined, INVALID, INVALID, nullptr, 0, 0,118OPTION(prefix_1, "linkrepro:", linkrepro, Joined, INVALID, INVALID, nullptr, 0, 0,
105 "Dump linker invocation and input files for debugging", nullptr, nullptr)119 "Dump linker invocation and input files for debugging", nullptr, nullptr)
120OPTION(prefix_1, "lldltocache:", lldltocache, Joined, INVALID, INVALID, nullptr, 0, 0,
121 "Path to ThinLTO cached object file directory", nullptr, nullptr)
122OPTION(prefix_1, "lldltocachepolicy:", lldltocachepolicy, Joined, INVALID, INVALID, nullptr, 0, 0,
123 "Pruning policy for the ThinLTO cache", nullptr, nullptr)
106OPTION(prefix_2, "lldmap:", lldmap_file, Joined, INVALID, INVALID, nullptr, 0, 0, nullptr, nullptr, nullptr)124OPTION(prefix_2, "lldmap:", lldmap_file, Joined, INVALID, INVALID, nullptr, 0, 0, nullptr, nullptr, nullptr)
107OPTION(prefix_1, "lldmap", lldmap, Flag, INVALID, INVALID, nullptr, 0, 0, nullptr, nullptr, nullptr)125OPTION(prefix_1, "lldmap", lldmap, Flag, INVALID, INVALID, nullptr, 0, 0, nullptr, nullptr, nullptr)
126OPTION(prefix_1, "lldmingw", lldmingw, Flag, INVALID, INVALID, nullptr, 0, 0, nullptr, nullptr, nullptr)
108OPTION(prefix_1, "lldsavetemps", lldsavetemps, Flag, INVALID, INVALID, nullptr, 0, 0,127OPTION(prefix_1, "lldsavetemps", lldsavetemps, Flag, INVALID, INVALID, nullptr, 0, 0,
109 "Save temporary files instead of deleting them", nullptr, nullptr)128 "Save temporary files instead of deleting them", nullptr, nullptr)
110OPTION(prefix_1, "machine:", machine, Joined, INVALID, INVALID, nullptr, 0, 0,129OPTION(prefix_1, "machine:", machine, Joined, INVALID, INVALID, nullptr, 0, 0,
...@@ -126,28 +145,31 @@ OPTION(prefix_1, "merge:", merge, Joined, INVALID, INVALID, nullptr, 0, 0,...@@ -126,28 +145,31 @@ OPTION(prefix_1, "merge:", merge, Joined, INVALID, INVALID, nullptr, 0, 0,
126OPTION(prefix_1, "mllvm:", mllvm, Joined, INVALID, INVALID, nullptr, 0, 0,145OPTION(prefix_1, "mllvm:", mllvm, Joined, INVALID, INVALID, nullptr, 0, 0,
127 "Options to pass to LLVM", nullptr, nullptr)146 "Options to pass to LLVM", nullptr, nullptr)
128OPTION(prefix_1, "msvclto", msvclto, Flag, INVALID, INVALID, nullptr, 0, 0, nullptr, nullptr, nullptr)147OPTION(prefix_1, "msvclto", msvclto, Flag, INVALID, INVALID, nullptr, 0, 0, nullptr, nullptr, nullptr)
148OPTION(prefix_1, "natvis:", natvis, Joined, INVALID, INVALID, nullptr, 0, 0, nullptr, nullptr, nullptr)
129OPTION(prefix_1, "nodefaultlib:", nodefaultlib, Joined, INVALID, INVALID, nullptr, 0, 0,149OPTION(prefix_1, "nodefaultlib:", nodefaultlib, Joined, INVALID, INVALID, nullptr, 0, 0,
130 "Remove a default library", nullptr, nullptr)150 "Remove a default library", nullptr, nullptr)
131OPTION(prefix_1, "nodefaultlib", nodefaultlib_all, Flag, INVALID, INVALID, nullptr, 0, 0, nullptr, nullptr, nullptr)151OPTION(prefix_1, "nodefaultlib", nodefaultlib_all, Flag, INVALID, INVALID, nullptr, 0, 0, nullptr, nullptr, nullptr)
132OPTION(prefix_1, "noentry", noentry, Flag, INVALID, INVALID, nullptr, 0, 0, nullptr, nullptr, nullptr)152OPTION(prefix_1, "noentry", noentry, Flag, INVALID, INVALID, nullptr, 0, 0, nullptr, nullptr, nullptr)
133OPTION(prefix_1, "nologo", nologo, Flag, INVALID, INVALID, nullptr, 0, 0, nullptr, nullptr, nullptr)153OPTION(prefix_1, "nologo", nologo, Flag, INVALID, INVALID, nullptr, 0, 0, nullptr, nullptr, nullptr)
134OPTION(prefix_1, "nopdb", nopdb, Flag, INVALID, INVALID, nullptr, 0, 0,
135 "Disable PDB generation for DWARF users", nullptr, nullptr)
136OPTION(prefix_1, "nosymtab", nosymtab, Flag, INVALID, INVALID, nullptr, 0, 0, nullptr, nullptr, nullptr)
137OPTION(prefix_1, "nxcompat:no", nxcompat_no, Flag, INVALID, INVALID, nullptr, 0, 0,154OPTION(prefix_1, "nxcompat:no", nxcompat_no, Flag, INVALID, INVALID, nullptr, 0, 0,
138 "Disable data execution provention", nullptr, nullptr)155 "Disable data execution provention", nullptr, nullptr)
139OPTION(prefix_1, "nxcompat", nxcompat, Flag, INVALID, INVALID, nullptr, 0, 0, nullptr, nullptr, nullptr)156OPTION(prefix_1, "nxcompat", nxcompat, Flag, INVALID, INVALID, nullptr, 0, 0,
157 "Enable data execution prevention (default)", nullptr, nullptr)
140OPTION(prefix_1, "opt:", opt, Joined, INVALID, INVALID, nullptr, 0, 0,158OPTION(prefix_1, "opt:", opt, Joined, INVALID, INVALID, nullptr, 0, 0,
141 "Control optimizations", nullptr, nullptr)159 "Control optimizations", nullptr, nullptr)
142OPTION(prefix_1, "out:", out, Joined, INVALID, INVALID, nullptr, 0, 0,160OPTION(prefix_1, "out:", out, Joined, INVALID, INVALID, nullptr, 0, 0,
143 "Path to file to write output", nullptr, nullptr)161 "Path to file to write output", nullptr, nullptr)
162OPTION(prefix_2, "output-def:", output_def, Joined, INVALID, INVALID, nullptr, 0, 0, nullptr, nullptr, nullptr)
144OPTION(prefix_1, "pdb:", pdb, Joined, INVALID, INVALID, nullptr, 0, 0,163OPTION(prefix_1, "pdb:", pdb, Joined, INVALID, INVALID, nullptr, 0, 0,
145 "PDB file path", nullptr, nullptr)164 "PDB file path", nullptr, nullptr)
146OPTION(prefix_1, "pdbaltpath:", pdbaltpath, Joined, INVALID, INVALID, nullptr, 0, 0, nullptr, nullptr, nullptr)165OPTION(prefix_1, "pdbaltpath:", pdbaltpath, Joined, INVALID, INVALID, nullptr, 0, 0, nullptr, nullptr, nullptr)
147OPTION(prefix_1, "profile", profile, Flag, INVALID, INVALID, nullptr, 0, 0, nullptr, nullptr, nullptr)166OPTION(prefix_1, "profile", profile, Flag, INVALID, INVALID, nullptr, 0, 0, nullptr, nullptr, nullptr)
167OPTION(prefix_3, "rsp-quoting=", rsp_quoting, Joined, INVALID, INVALID, nullptr, 0, 0,
168 "Quoting style for response files, 'windows' (default) or 'posix'", nullptr, nullptr)
148OPTION(prefix_1, "safeseh:no", safeseh_no, Flag, INVALID, INVALID, nullptr, 0, 0,169OPTION(prefix_1, "safeseh:no", safeseh_no, Flag, INVALID, INVALID, nullptr, 0, 0,
149 "Produce an image with Safe Exception Handler", nullptr, nullptr)170 "Don't produce an image with Safe Exception Handler", nullptr, nullptr)
150OPTION(prefix_1, "safeseh", safeseh, Flag, INVALID, INVALID, nullptr, 0, 0, nullptr, nullptr, nullptr)171OPTION(prefix_1, "safeseh", safeseh, Flag, INVALID, INVALID, nullptr, 0, 0,
172 "Produce an image with Safe Exception Handler (only for x86)", nullptr, nullptr)
151OPTION(prefix_1, "section:", section, Joined, INVALID, INVALID, nullptr, 0, 0,173OPTION(prefix_1, "section:", section, Joined, INVALID, INVALID, nullptr, 0, 0,
152 "Specify section attributes", nullptr, nullptr)174 "Specify section attributes", nullptr, nullptr)
153OPTION(prefix_1, "stack:", stack, Joined, INVALID, INVALID, nullptr, 0, 0,175OPTION(prefix_1, "stack:", stack, Joined, INVALID, INVALID, nullptr, 0, 0,
...@@ -163,12 +185,27 @@ OPTION(prefix_1, "tlbid:", tlbid, Joined, INVALID, INVALID, nullptr, 0, 0, nullp...@@ -163,12 +185,27 @@ OPTION(prefix_1, "tlbid:", tlbid, Joined, INVALID, INVALID, nullptr, 0, 0, nullp
163OPTION(prefix_1, "tlbout:", tlbout, Joined, INVALID, INVALID, nullptr, 0, 0, nullptr, nullptr, nullptr)185OPTION(prefix_1, "tlbout:", tlbout, Joined, INVALID, INVALID, nullptr, 0, 0, nullptr, nullptr, nullptr)
164OPTION(prefix_1, "tsaware:no", tsaware_no, Flag, INVALID, INVALID, nullptr, 0, 0,186OPTION(prefix_1, "tsaware:no", tsaware_no, Flag, INVALID, INVALID, nullptr, 0, 0,
165 "Create non-Terminal Server aware executable", nullptr, nullptr)187 "Create non-Terminal Server aware executable", nullptr, nullptr)
166OPTION(prefix_1, "tsaware", tsaware, Flag, INVALID, INVALID, nullptr, 0, 0, nullptr, nullptr, nullptr)188OPTION(prefix_1, "tsaware", tsaware, Flag, INVALID, INVALID, nullptr, 0, 0,
189 "Create Terminal Server aware executable (default)", nullptr, nullptr)
167OPTION(prefix_1, "verbose:", verbose_all, Joined, INVALID, INVALID, nullptr, 0, 0, nullptr, nullptr, nullptr)190OPTION(prefix_1, "verbose:", verbose_all, Joined, INVALID, INVALID, nullptr, 0, 0, nullptr, nullptr, nullptr)
168OPTION(prefix_1, "verbose", verbose, Flag, INVALID, INVALID, nullptr, 0, 0, nullptr, nullptr, nullptr)191OPTION(prefix_1, "verbose", verbose, Flag, INVALID, INVALID, nullptr, 0, 0, nullptr, nullptr, nullptr)
169OPTION(prefix_1, "version:", version, Joined, INVALID, INVALID, nullptr, 0, 0,192OPTION(prefix_1, "version:", version, Joined, INVALID, INVALID, nullptr, 0, 0,
170 "Specify a version number in the PE header", nullptr, nullptr)193 "Specify a version number in the PE header", nullptr, nullptr)
171OPTION(prefix_1, "wx:no", wx_no, Flag, INVALID, INVALID, nullptr, 0, 0, nullptr, nullptr, nullptr)194OPTION(prefix_3, "version", dash_dash_version, Flag, INVALID, INVALID, nullptr, 0, 0,
172OPTION(prefix_1, "wx", wx, Flag, INVALID, INVALID, nullptr, 0, 0, nullptr, nullptr, nullptr)195 "Print version information", nullptr, nullptr)
173OPTION(prefix_3, "", help_q, Flag, INVALID, help, nullptr, 0, 0, nullptr, nullptr, nullptr)196OPTION(prefix_1, "wholearchive:", wholearchive_file, Joined, INVALID, INVALID, nullptr, 0, 0,
197 "Include all object files from this archive", nullptr, nullptr)
198OPTION(prefix_1, "wholearchive", wholearchive_flag, Flag, INVALID, INVALID, nullptr, 0, 0, nullptr, nullptr, nullptr)
199OPTION(prefix_1, "WX:no", WX_no, Flag, INVALID, INVALID, nullptr, 0, 0,
200 "Don't treat warnings as errors", nullptr, nullptr)
201OPTION(prefix_1, "WX", WX, Flag, INVALID, INVALID, nullptr, 0, 0,
202 "Treat warnings as errors", nullptr, nullptr)
203OPTION(prefix_4, "", help_q, Flag, INVALID, help, nullptr, 0, 0, nullptr, nullptr, nullptr)
174#endif // OPTION204#endif // OPTION
205
206#ifdef OPTTABLE_ARG_INIT
207//////////
208// Option Values
209
210
211#endif // OPTTABLE_ARG_INIT
deps/lld-prebuilt/DarwinLdOptions.inc+7
...@@ -187,3 +187,10 @@ OPTION(prefix_1, "v", v, Flag, INVALID, INVALID, nullptr, 0, 0,...@@ -187,3 +187,10 @@ OPTION(prefix_1, "v", v, Flag, INVALID, INVALID, nullptr, 0, 0,
187OPTION(prefix_1, "Z", Z, Flag, INVALID, INVALID, nullptr, 0, 0,187OPTION(prefix_1, "Z", Z, Flag, INVALID, INVALID, nullptr, 0, 0,
188 "Do not search standard directories for libraries or frameworks", nullptr, nullptr)188 "Do not search standard directories for libraries or frameworks", nullptr, nullptr)
189#endif // OPTION189#endif // OPTION
190
191#ifdef OPTTABLE_ARG_INIT
192//////////
193// Option Values
194
195
196#endif // OPTTABLE_ARG_INIT
deps/lld-prebuilt/ELF/Options.inc+124-46
...@@ -52,19 +52,23 @@ OPTION(prefix_2, "build-id", build_id, Flag, INVALID, INVALID, nullptr, 0, 0,...@@ -52,19 +52,23 @@ OPTION(prefix_2, "build-id", build_id, Flag, INVALID, INVALID, nullptr, 0, 0,
52 "Generate build ID note", nullptr, nullptr)52 "Generate build ID note", nullptr, nullptr)
53OPTION(prefix_2, "b", alias_format_b, Separate, INVALID, format, nullptr, 0, 0, nullptr, nullptr, nullptr)53OPTION(prefix_2, "b", alias_format_b, Separate, INVALID, format, nullptr, 0, 0, nullptr, nullptr, nullptr)
54OPTION(prefix_2, "call_shared", alias_Bdynamic_call_shared, Flag, INVALID, Bdynamic, nullptr, 0, 0, nullptr, nullptr, nullptr)54OPTION(prefix_2, "call_shared", alias_Bdynamic_call_shared, Flag, INVALID, Bdynamic, nullptr, 0, 0, nullptr, nullptr, nullptr)
55OPTION(prefix_2, "chroot", chroot, Separate, INVALID, INVALID, nullptr, 0, 0, nullptr, nullptr, nullptr)
55OPTION(prefix_2, "color-diagnostics=", color_diagnostics_eq, Joined, INVALID, INVALID, nullptr, 0, 0,56OPTION(prefix_2, "color-diagnostics=", color_diagnostics_eq, Joined, INVALID, INVALID, nullptr, 0, 0,
56 "Use colors in diagnostics", nullptr, nullptr)57 "Use colors in diagnostics", nullptr, nullptr)
57OPTION(prefix_2, "color-diagnostics", color_diagnostics, Flag, INVALID, INVALID, nullptr, 0, 0,58OPTION(prefix_2, "color-diagnostics", color_diagnostics, Flag, INVALID, INVALID, nullptr, 0, 0,
58 "Use colors in diagnostics", nullptr, nullptr)59 "Use colors in diagnostics", nullptr, nullptr)
59OPTION(prefix_2, "compress-debug-sections=", compress_debug_sections, Joined, INVALID, INVALID, nullptr, 0, 0,60OPTION(prefix_2, "compress-debug-sections=", compress_debug_sections_eq, Joined, INVALID, compress_debug_sections, nullptr, 0, 0,
60 "Compress DWARF debug sections", nullptr, nullptr)61 "Compress DWARF debug sections", nullptr, nullptr)
61OPTION(prefix_3, "cref", cref, Flag, INVALID, INVALID, nullptr, 0, 0, nullptr, nullptr, nullptr)62OPTION(prefix_2, "compress-debug-sections", compress_debug_sections, Separate, INVALID, INVALID, nullptr, 0, 0,
63 "Compress DWARF debug sections", nullptr, nullptr)
64OPTION(prefix_2, "cref", cref, Flag, INVALID, INVALID, nullptr, 0, 0, nullptr, nullptr, nullptr)
62OPTION(prefix_2, "dc", alias_define_common_dc, Flag, INVALID, define_common, nullptr, 0, 0, nullptr, nullptr, nullptr)65OPTION(prefix_2, "dc", alias_define_common_dc, Flag, INVALID, define_common, nullptr, 0, 0, nullptr, nullptr, nullptr)
63OPTION(prefix_2, "define-common", define_common, Flag, INVALID, INVALID, nullptr, 0, 0,66OPTION(prefix_2, "define-common", define_common, Flag, INVALID, INVALID, nullptr, 0, 0,
64 "Assign space to common symbols", nullptr, nullptr)67 "Assign space to common symbols", nullptr, nullptr)
65OPTION(prefix_2, "defsym=", defsym, Joined, INVALID, INVALID, nullptr, 0, 0,68OPTION(prefix_2, "defsym=", defsym_eq, Joined, INVALID, defsym, nullptr, 0, 0,
69 "Define a symbol alias", nullptr, nullptr)
70OPTION(prefix_2, "defsym", defsym, Separate, INVALID, INVALID, nullptr, 0, 0,
66 "Define a symbol alias", nullptr, nullptr)71 "Define a symbol alias", nullptr, nullptr)
67OPTION(prefix_2, "defsym", alias_defsym, Separate, INVALID, defsym, nullptr, 0, 0, nullptr, nullptr, nullptr)
68OPTION(prefix_2, "demangle", demangle, Flag, INVALID, INVALID, nullptr, 0, 0,72OPTION(prefix_2, "demangle", demangle, Flag, INVALID, INVALID, nullptr, 0, 0,
69 "Demangle symbol names", nullptr, nullptr)73 "Demangle symbol names", nullptr, nullptr)
70OPTION(prefix_2, "detect-odr-violations", detect_odr_violations, Flag, INVALID, INVALID, nullptr, 0, 0, nullptr, nullptr, nullptr)74OPTION(prefix_2, "detect-odr-violations", detect_odr_violations, Flag, INVALID, INVALID, nullptr, 0, 0, nullptr, nullptr, nullptr)
...@@ -81,7 +85,8 @@ OPTION(prefix_2, "dn", alias_Bstatic_dn, Flag, INVALID, Bstatic, nullptr, 0, 0,...@@ -81,7 +85,8 @@ OPTION(prefix_2, "dn", alias_Bstatic_dn, Flag, INVALID, Bstatic, nullptr, 0, 0,
81OPTION(prefix_2, "dp", alias_define_common_dp, Flag, INVALID, define_common, nullptr, 0, 0, nullptr, nullptr, nullptr)85OPTION(prefix_2, "dp", alias_define_common_dp, Flag, INVALID, define_common, nullptr, 0, 0, nullptr, nullptr, nullptr)
82OPTION(prefix_2, "dynamic-linker", dynamic_linker, Separate, INVALID, INVALID, nullptr, 0, 0,86OPTION(prefix_2, "dynamic-linker", dynamic_linker, Separate, INVALID, INVALID, nullptr, 0, 0,
83 "Which dynamic linker to use", nullptr, nullptr)87 "Which dynamic linker to use", nullptr, nullptr)
84OPTION(prefix_2, "dynamic-list=", alias_dynamic_list, Joined, INVALID, dynamic_list, nullptr, 0, 0, nullptr, nullptr, nullptr)88OPTION(prefix_2, "dynamic-list=", dynamic_list_eq, Joined, INVALID, dynamic_list, nullptr, 0, 0,
89 "Read a list of dynamic symbols", nullptr, nullptr)
85OPTION(prefix_2, "dynamic-list", dynamic_list, Separate, INVALID, INVALID, nullptr, 0, 0,90OPTION(prefix_2, "dynamic-list", dynamic_list, Separate, INVALID, INVALID, nullptr, 0, 0,
86 "Read a list of dynamic symbols", nullptr, nullptr)91 "Read a list of dynamic symbols", nullptr, nullptr)
87OPTION(prefix_2, "dy", alias_Bdynamic_dy, Flag, INVALID, Bdynamic, nullptr, 0, 0, nullptr, nullptr, nullptr)92OPTION(prefix_2, "dy", alias_Bdynamic_dy, Flag, INVALID, Bdynamic, nullptr, 0, 0, nullptr, nullptr, nullptr)
...@@ -97,18 +102,22 @@ OPTION(prefix_2, "enable-new-dtags", enable_new_dtags, Flag, INVALID, INVALID, n...@@ -97,18 +102,22 @@ OPTION(prefix_2, "enable-new-dtags", enable_new_dtags, Flag, INVALID, INVALID, n
97OPTION(prefix_2, "end-group", end_group, Flag, INVALID, INVALID, nullptr, 0, 0, nullptr, nullptr, nullptr)102OPTION(prefix_2, "end-group", end_group, Flag, INVALID, INVALID, nullptr, 0, 0, nullptr, nullptr, nullptr)
98OPTION(prefix_2, "end-lib", end_lib, Flag, INVALID, INVALID, nullptr, 0, 0,103OPTION(prefix_2, "end-lib", end_lib, Flag, INVALID, INVALID, nullptr, 0, 0,
99 "End a grouping of objects that should be treated as if they were together in an archive", nullptr, nullptr)104 "End a grouping of objects that should be treated as if they were together in an archive", nullptr, nullptr)
100OPTION(prefix_2, "entry=", alias_entry_entry, Joined, INVALID, entry, nullptr, 0, 0, nullptr, nullptr, nullptr)105OPTION(prefix_2, "entry=", entry_eq, Joined, INVALID, entry, nullptr, 0, 0,
106 "Name of entry point symbol", "<entry>", nullptr)
101OPTION(prefix_2, "entry", entry, Separate, INVALID, INVALID, nullptr, 0, 0,107OPTION(prefix_2, "entry", entry, Separate, INVALID, INVALID, nullptr, 0, 0,
102 "Name of entry point symbol", "<entry>", nullptr)108 "Name of entry point symbol", "<entry>", nullptr)
103OPTION(prefix_2, "error-limit=", alias_error_limit, Joined, INVALID, error_limit, nullptr, 0, 0, nullptr, nullptr, nullptr)109OPTION(prefix_2, "error-limit=", error_limit_eq, Joined, INVALID, error_limit, nullptr, 0, 0,
110 "Maximum number of errors to emit before stopping (0 = no limit)", nullptr, nullptr)
104OPTION(prefix_2, "error-limit", error_limit, Separate, INVALID, INVALID, nullptr, 0, 0,111OPTION(prefix_2, "error-limit", error_limit, Separate, INVALID, INVALID, nullptr, 0, 0,
105 "Maximum number of errors to emit before stopping (0 = no limit)", nullptr, nullptr)112 "Maximum number of errors to emit before stopping (0 = no limit)", nullptr, nullptr)
106OPTION(prefix_2, "error-unresolved-symbols", error_unresolved_symbols, Flag, INVALID, INVALID, nullptr, 0, 0,113OPTION(prefix_2, "error-unresolved-symbols", error_unresolved_symbols, Flag, INVALID, INVALID, nullptr, 0, 0,
107 "Report unresolved symbols as errors", nullptr, nullptr)114 "Report unresolved symbols as errors", nullptr, nullptr)
108OPTION(prefix_2, "exclude-libs=", alias_exclude_libs, Joined, INVALID, exclude_libs, nullptr, 0, 0, nullptr, nullptr, nullptr)115OPTION(prefix_2, "exclude-libs=", exclude_libs_eq, Joined, INVALID, exclude_libs, nullptr, 0, 0,
116 "Exclude static libraries from automatic export", nullptr, nullptr)
109OPTION(prefix_2, "exclude-libs", exclude_libs, Separate, INVALID, INVALID, nullptr, 0, 0,117OPTION(prefix_2, "exclude-libs", exclude_libs, Separate, INVALID, INVALID, nullptr, 0, 0,
110 "Exclude static libraries from automatic export", nullptr, nullptr)118 "Exclude static libraries from automatic export", nullptr, nullptr)
111OPTION(prefix_2, "export-dynamic-symbol=", alias_export_dynamic_symbol, Joined, INVALID, export_dynamic_symbol, nullptr, 0, 0, nullptr, nullptr, nullptr)119OPTION(prefix_2, "export-dynamic-symbol=", export_dynamic_symbol_eq, Joined, INVALID, export_dynamic_symbol, nullptr, 0, 0,
120 "Put a symbol in the dynamic symbol table", nullptr, nullptr)
112OPTION(prefix_2, "export-dynamic-symbol", export_dynamic_symbol, Separate, INVALID, INVALID, nullptr, 0, 0,121OPTION(prefix_2, "export-dynamic-symbol", export_dynamic_symbol, Separate, INVALID, INVALID, nullptr, 0, 0,
113 "Put a symbol in the dynamic symbol table", nullptr, nullptr)122 "Put a symbol in the dynamic symbol table", nullptr, nullptr)
114OPTION(prefix_2, "export-dynamic", export_dynamic, Flag, INVALID, INVALID, nullptr, 0, 0,123OPTION(prefix_2, "export-dynamic", export_dynamic, Flag, INVALID, INVALID, nullptr, 0, 0,
...@@ -117,12 +126,19 @@ OPTION(prefix_1, "E", alias_export_dynamic_E, Flag, INVALID, export_dynamic, nul...@@ -117,12 +126,19 @@ OPTION(prefix_1, "E", alias_export_dynamic_E, Flag, INVALID, export_dynamic, nul
117OPTION(prefix_1, "e", alias_entry_e, JoinedOrSeparate, INVALID, entry, nullptr, 0, 0, nullptr, nullptr, nullptr)126OPTION(prefix_1, "e", alias_entry_e, JoinedOrSeparate, INVALID, entry, nullptr, 0, 0, nullptr, nullptr, nullptr)
118OPTION(prefix_2, "fatal-warnings", fatal_warnings, Flag, INVALID, INVALID, nullptr, 0, 0,127OPTION(prefix_2, "fatal-warnings", fatal_warnings, Flag, INVALID, INVALID, nullptr, 0, 0,
119 "Treat warnings as errors", nullptr, nullptr)128 "Treat warnings as errors", nullptr, nullptr)
120OPTION(prefix_2, "filter=", filter, Joined, INVALID, INVALID, nullptr, 0, 0,129OPTION(prefix_2, "filter=", filter_eq, Joined, INVALID, filter, nullptr, 0, 0,
130 "Set DT_FILTER field to the specified name", nullptr, nullptr)
131OPTION(prefix_2, "filter", filter, Separate, INVALID, INVALID, nullptr, 0, 0,
121 "Set DT_FILTER field to the specified name", nullptr, nullptr)132 "Set DT_FILTER field to the specified name", nullptr, nullptr)
122OPTION(prefix_2, "fini=", alias_fini_fini, Joined, INVALID, fini, nullptr, 0, 0, nullptr, nullptr, nullptr)133OPTION(prefix_2, "fini=", fini_eq, Joined, INVALID, fini, nullptr, 0, 0,
134 "Specify a finalizer function", "<symbol>", nullptr)
123OPTION(prefix_2, "fini", fini, Separate, INVALID, INVALID, nullptr, 0, 0,135OPTION(prefix_2, "fini", fini, Separate, INVALID, INVALID, nullptr, 0, 0,
124 "Specify a finalizer function", "<symbol>", nullptr)136 "Specify a finalizer function", "<symbol>", nullptr)
125OPTION(prefix_2, "format=", format, Joined, INVALID, INVALID, nullptr, 0, 0,137OPTION(prefix_2, "fix-cortex-a53-843419", fix_cortex_a53_843419, Flag, INVALID, INVALID, nullptr, 0, 0,
138 "Apply fixes for AArch64 Cortex-A53 erratum 843419", nullptr, nullptr)
139OPTION(prefix_2, "format=", format_eq, Joined, INVALID, format, nullptr, 0, 0,
140 "Change the input format of the inputs following this option", "<input-format>", nullptr)
141OPTION(prefix_2, "format", format, Separate, INVALID, INVALID, nullptr, 0, 0,
126 "Change the input format of the inputs following this option", "<input-format>", nullptr)142 "Change the input format of the inputs following this option", "<input-format>", nullptr)
127OPTION(prefix_2, "full-shutdown", full_shutdown, Flag, INVALID, INVALID, nullptr, 0, 0,143OPTION(prefix_2, "full-shutdown", full_shutdown, Flag, INVALID, INVALID, nullptr, 0, 0,
128 "Perform a full shutdown instead of calling _exit", nullptr, nullptr)144 "Perform a full shutdown instead of calling _exit", nullptr, nullptr)
...@@ -134,23 +150,36 @@ OPTION(prefix_2, "gdb-index", gdb_index, Flag, INVALID, INVALID, nullptr, 0, 0,...@@ -134,23 +150,36 @@ OPTION(prefix_2, "gdb-index", gdb_index, Flag, INVALID, INVALID, nullptr, 0, 0,
134 "Generate .gdb_index section", nullptr, nullptr)150 "Generate .gdb_index section", nullptr, nullptr)
135OPTION(prefix_1, "G", G, JoinedOrSeparate, INVALID, INVALID, nullptr, 0, 0, nullptr, nullptr, nullptr)151OPTION(prefix_1, "G", G, JoinedOrSeparate, INVALID, INVALID, nullptr, 0, 0, nullptr, nullptr, nullptr)
136OPTION(prefix_1, "g", g, Flag, INVALID, INVALID, nullptr, 0, 0, nullptr, nullptr, nullptr)152OPTION(prefix_1, "g", g, Flag, INVALID, INVALID, nullptr, 0, 0, nullptr, nullptr, nullptr)
137OPTION(prefix_2, "hash-style=", alias_hash_style_hash_style, Joined, INVALID, hash_style, nullptr, 0, 0, nullptr, nullptr, nullptr)153OPTION(prefix_2, "hash-style=", hash_style_eq, Joined, INVALID, hash_style, nullptr, 0, 0,
154 "Specify hash style (sysv, gnu or both)", nullptr, nullptr)
138OPTION(prefix_2, "hash-style", hash_style, Separate, INVALID, INVALID, nullptr, 0, 0,155OPTION(prefix_2, "hash-style", hash_style, Separate, INVALID, INVALID, nullptr, 0, 0,
139 "Specify hash style (sysv, gnu or both)", nullptr, nullptr)156 "Specify hash style (sysv, gnu or both)", nullptr, nullptr)
140OPTION(prefix_2, "help", help, Flag, INVALID, INVALID, nullptr, 0, 0,157OPTION(prefix_2, "help", help, Flag, INVALID, INVALID, nullptr, 0, 0,
141 "Print option help", nullptr, nullptr)158 "Print option help", nullptr, nullptr)
142OPTION(prefix_1, "h", alias_soname_h, JoinedOrSeparate, INVALID, soname, nullptr, 0, 0, nullptr, nullptr, nullptr)159OPTION(prefix_1, "h", alias_soname_h, JoinedOrSeparate, INVALID, soname, nullptr, 0, 0, nullptr, nullptr, nullptr)
160OPTION(prefix_2, "icf-data", icf_data, Flag, INVALID, INVALID, nullptr, 0, 0,
161 "Enable ICF to also fold identical read only data", nullptr, nullptr)
143OPTION(prefix_2, "icf=all", icf_all, Flag, INVALID, INVALID, nullptr, 0, 0,162OPTION(prefix_2, "icf=all", icf_all, Flag, INVALID, INVALID, nullptr, 0, 0,
144 "Enable identical code folding", nullptr, nullptr)163 "Enable identical code folding", nullptr, nullptr)
145OPTION(prefix_2, "icf=none", icf_none, Flag, INVALID, INVALID, nullptr, 0, 0,164OPTION(prefix_2, "icf=none", icf_none, Flag, INVALID, INVALID, nullptr, 0, 0,
146 "Disable identical code folding", nullptr, nullptr)165 "Disable identical code folding", nullptr, nullptr)
147OPTION(prefix_2, "image-base=", image_base, Joined, INVALID, INVALID, nullptr, 0, 0,166OPTION(prefix_2, "image-base=", image_base_eq, Joined, INVALID, image_base, nullptr, 0, 0,
148 "Set the base address", nullptr, nullptr)167 "Set the base address", nullptr, nullptr)
149OPTION(prefix_2, "init=", alias_init_init, Joined, INVALID, init, nullptr, 0, 0, nullptr, nullptr, nullptr)168OPTION(prefix_2, "image-base", image_base, Separate, INVALID, INVALID, nullptr, 0, 0,
169 "Set the base address", nullptr, nullptr)
170OPTION(prefix_2, "init=", init_eq, Joined, INVALID, init, nullptr, 0, 0,
171 "Specify an initializer function", "<symbol>", nullptr)
150OPTION(prefix_2, "init", init, Separate, INVALID, INVALID, nullptr, 0, 0,172OPTION(prefix_2, "init", init, Separate, INVALID, INVALID, nullptr, 0, 0,
151 "Specify an initializer function", "<symbol>", nullptr)173 "Specify an initializer function", "<symbol>", nullptr)
152OPTION(prefix_2, "library-path=", alias_L__library_path, Joined, INVALID, L, nullptr, 0, 0, nullptr, nullptr, nullptr)174OPTION(prefix_2, "library-path=", library_path_eq, Joined, INVALID, library_path, nullptr, 0, 0,
153OPTION(prefix_2, "library=", alias_l__library, Joined, INVALID, l, nullptr, 0, 0, nullptr, nullptr, nullptr)175 "Add a directory to the library search path", "<dir>", nullptr)
176OPTION(prefix_2, "library-path", library_path, Separate, INVALID, INVALID, nullptr, 0, 0,
177 "Add a directory to the library search path", "<dir>", nullptr)
178OPTION(prefix_2, "library=", library_eq, Joined, INVALID, library, nullptr, 0, 0,
179 "Root name of library to use", "<libName>", nullptr)
180OPTION(prefix_2, "library", library, Separate, INVALID, INVALID, nullptr, 0, 0,
181 "Root name of library to use", "<libName>", nullptr)
182OPTION(prefix_2, "long-plt", long_plt, Flag, INVALID, INVALID, nullptr, 0, 0, nullptr, nullptr, nullptr)
154OPTION(prefix_2, "lto-aa-pipeline=", lto_aa_pipeline, Joined, INVALID, INVALID, nullptr, 0, 0,183OPTION(prefix_2, "lto-aa-pipeline=", lto_aa_pipeline, Joined, INVALID, INVALID, nullptr, 0, 0,
155 "AA pipeline to run during LTO. Used in conjunction with -lto-newpm-passes", nullptr, nullptr)184 "AA pipeline to run during LTO. Used in conjunction with -lto-newpm-passes", nullptr, nullptr)
156OPTION(prefix_2, "lto-newpm-passes=", lto_newpm_passes, Joined, INVALID, INVALID, nullptr, 0, 0,185OPTION(prefix_2, "lto-newpm-passes=", lto_newpm_passes, Joined, INVALID, INVALID, nullptr, 0, 0,
...@@ -159,13 +188,14 @@ OPTION(prefix_2, "lto-O", lto_O, Joined, INVALID, INVALID, nullptr, 0, 0,...@@ -159,13 +188,14 @@ OPTION(prefix_2, "lto-O", lto_O, Joined, INVALID, INVALID, nullptr, 0, 0,
159 "Optimization level for LTO", "<opt-level>", nullptr)188 "Optimization level for LTO", "<opt-level>", nullptr)
160OPTION(prefix_2, "lto-partitions=", lto_partitions, Joined, INVALID, INVALID, nullptr, 0, 0,189OPTION(prefix_2, "lto-partitions=", lto_partitions, Joined, INVALID, INVALID, nullptr, 0, 0,
161 "Number of LTO codegen partitions", nullptr, nullptr)190 "Number of LTO codegen partitions", nullptr, nullptr)
162OPTION(prefix_1, "L", L, JoinedOrSeparate, INVALID, INVALID, nullptr, 0, 0,191OPTION(prefix_1, "L", alias_library_path, JoinedOrSeparate, INVALID, library_path, nullptr, 0, 0, nullptr, nullptr, nullptr)
163 "Add a directory to the library search path", "<dir>", nullptr)192OPTION(prefix_1, "l", alias_library, JoinedOrSeparate, INVALID, library, nullptr, 0, 0, nullptr, nullptr, nullptr)
164OPTION(prefix_1, "l", l, JoinedOrSeparate, INVALID, INVALID, nullptr, 0, 0,193OPTION(prefix_2, "Map=", Map_eq, Joined, INVALID, Map, nullptr, 0, 0,
165 "Root name of library to use", "<libName>", nullptr)
166OPTION(prefix_2, "Map=", alias_Map_eq, Joined, INVALID, Map, nullptr, 0, 0, nullptr, nullptr, nullptr)
167OPTION(prefix_2, "Map", Map, JoinedOrSeparate, INVALID, INVALID, nullptr, 0, 0,
168 "Print a link map to the specified file", nullptr, nullptr)194 "Print a link map to the specified file", nullptr, nullptr)
195OPTION(prefix_2, "Map", Map, Separate, INVALID, INVALID, nullptr, 0, 0,
196 "Print a link map to the specified file", nullptr, nullptr)
197OPTION(prefix_2, "merge-exidx-entries", merge_exidx_entries, Flag, INVALID, INVALID, nullptr, 0, 0,
198 "Enable merging .ARM.exidx entries", nullptr, nullptr)
169OPTION(prefix_2, "mllvm", mllvm, Separate, INVALID, INVALID, nullptr, 0, 0, nullptr, nullptr, nullptr)199OPTION(prefix_2, "mllvm", mllvm, Separate, INVALID, INVALID, nullptr, 0, 0, nullptr, nullptr, nullptr)
170OPTION(prefix_1, "M", alias_print_map_M, Flag, INVALID, print_map, nullptr, 0, 0, nullptr, nullptr, nullptr)200OPTION(prefix_1, "M", alias_print_map_M, Flag, INVALID, print_map, nullptr, 0, 0, nullptr, nullptr, nullptr)
171OPTION(prefix_1, "m", m, JoinedOrSeparate, INVALID, INVALID, nullptr, 0, 0,201OPTION(prefix_1, "m", m, JoinedOrSeparate, INVALID, INVALID, nullptr, 0, 0,
...@@ -176,21 +206,32 @@ OPTION(prefix_2, "no-as-needed", no_as_needed, Flag, INVALID, INVALID, nullptr,...@@ -176,21 +206,32 @@ OPTION(prefix_2, "no-as-needed", no_as_needed, Flag, INVALID, INVALID, nullptr,
176 "Always DT_NEEDED for shared libraries", nullptr, nullptr)206 "Always DT_NEEDED for shared libraries", nullptr, nullptr)
177OPTION(prefix_2, "no-color-diagnostics", no_color_diagnostics, Flag, INVALID, INVALID, nullptr, 0, 0,207OPTION(prefix_2, "no-color-diagnostics", no_color_diagnostics, Flag, INVALID, INVALID, nullptr, 0, 0,
178 "Do not use colors in diagnostics", nullptr, nullptr)208 "Do not use colors in diagnostics", nullptr, nullptr)
179OPTION(prefix_2, "no-copy-dt-needed-entries", no_copy_dt_needed_entries, Flag, INVALID, no_add_needed, nullptr, 0, 0, nullptr, nullptr, nullptr)209OPTION(prefix_2, "no-copy-dt-needed-entries", no_copy_dt_needed_entries, Flag, INVALID, INVALID, nullptr, 0, 0, nullptr, nullptr, nullptr)
210OPTION(prefix_2, "no-ctors-in-init-array", no_ctors_in_init_array, Flag, INVALID, INVALID, nullptr, 0, 0, nullptr, nullptr, nullptr)
180OPTION(prefix_2, "no-define-common", no_define_common, Flag, INVALID, INVALID, nullptr, 0, 0,211OPTION(prefix_2, "no-define-common", no_define_common, Flag, INVALID, INVALID, nullptr, 0, 0,
181 "Do not assign space to common symbols", nullptr, nullptr)212 "Do not assign space to common symbols", nullptr, nullptr)
182OPTION(prefix_2, "no-demangle", no_demangle, Flag, INVALID, INVALID, nullptr, 0, 0,213OPTION(prefix_2, "no-demangle", no_demangle, Flag, INVALID, INVALID, nullptr, 0, 0,
183 "Do not demangle symbol names", nullptr, nullptr)214 "Do not demangle symbol names", nullptr, nullptr)
184OPTION(prefix_2, "no-dynamic-linker", no_dynamic_linker, Flag, INVALID, INVALID, nullptr, 0, 0,215OPTION(prefix_2, "no-dynamic-linker", no_dynamic_linker, Flag, INVALID, INVALID, nullptr, 0, 0,
185 "Inhibit output of .interp section", nullptr, nullptr)216 "Inhibit output of .interp section", nullptr, nullptr)
217OPTION(prefix_2, "no-eh-frame-hdr", no_eh_frame_hdr, Flag, INVALID, INVALID, nullptr, 0, 0,
218 "Do not create .eh_frame_hdr section", nullptr, nullptr)
186OPTION(prefix_2, "no-export-dynamic", no_export_dynamic, Flag, INVALID, INVALID, nullptr, 0, 0, nullptr, nullptr, nullptr)219OPTION(prefix_2, "no-export-dynamic", no_export_dynamic, Flag, INVALID, INVALID, nullptr, 0, 0, nullptr, nullptr, nullptr)
187OPTION(prefix_2, "no-fatal-warnings", no_fatal_warnings, Flag, INVALID, INVALID, nullptr, 0, 0, nullptr, nullptr, nullptr)220OPTION(prefix_2, "no-fatal-warnings", no_fatal_warnings, Flag, INVALID, INVALID, nullptr, 0, 0, nullptr, nullptr, nullptr)
188OPTION(prefix_2, "no-gc-sections", no_gc_sections, Flag, INVALID, INVALID, nullptr, 0, 0,221OPTION(prefix_2, "no-gc-sections", no_gc_sections, Flag, INVALID, INVALID, nullptr, 0, 0,
189 "Disable garbage collection of unused sections", nullptr, nullptr)222 "Disable garbage collection of unused sections", nullptr, nullptr)
223OPTION(prefix_2, "no-gdb-index", no_gdb_index, Flag, INVALID, INVALID, nullptr, 0, 0,
224 "Do not generate .gdb_index section", nullptr, nullptr)
190OPTION(prefix_2, "no-gnu-unique", no_gnu_unique, Flag, INVALID, INVALID, nullptr, 0, 0,225OPTION(prefix_2, "no-gnu-unique", no_gnu_unique, Flag, INVALID, INVALID, nullptr, 0, 0,
191 "Disable STB_GNU_UNIQUE symbol binding", nullptr, nullptr)226 "Disable STB_GNU_UNIQUE symbol binding", nullptr, nullptr)
192OPTION(prefix_2, "no-keep-memory", no_keep_memory, Flag, INVALID, INVALID, nullptr, 0, 0, nullptr, nullptr, nullptr)227OPTION(prefix_2, "no-keep-memory", no_keep_memory, Flag, INVALID, INVALID, nullptr, 0, 0, nullptr, nullptr, nullptr)
228OPTION(prefix_2, "no-merge-exidx-entries", no_merge_exidx_entries, Flag, INVALID, INVALID, nullptr, 0, 0,
229 "Disable merging .ARM.exidx entries", nullptr, nullptr)
193OPTION(prefix_2, "no-mmap-output-file", no_mmap_output_file, Flag, INVALID, INVALID, nullptr, 0, 0, nullptr, nullptr, nullptr)230OPTION(prefix_2, "no-mmap-output-file", no_mmap_output_file, Flag, INVALID, INVALID, nullptr, 0, 0, nullptr, nullptr, nullptr)
231OPTION(prefix_3, "no-omagic", no_omagic, Flag, INVALID, INVALID, nullptr, 0, 0,
232 "Do not set the text data sections to be writable", "<magic>", nullptr)
233OPTION(prefix_2, "no-print-gc-sections", no_print_gc_sections, Flag, INVALID, INVALID, nullptr, 0, 0,
234 "Do not list removed unused sections", nullptr, nullptr)
194OPTION(prefix_2, "no-rosegment", no_rosegment, Flag, INVALID, INVALID, nullptr, 0, 0,235OPTION(prefix_2, "no-rosegment", no_rosegment, Flag, INVALID, INVALID, nullptr, 0, 0,
195 "Do not put read-only non-executable sections in their own segment", nullptr, nullptr)236 "Do not put read-only non-executable sections in their own segment", nullptr, nullptr)
196OPTION(prefix_2, "no-threads", no_threads, Flag, INVALID, INVALID, nullptr, 0, 0,237OPTION(prefix_2, "no-threads", no_threads, Flag, INVALID, INVALID, nullptr, 0, 0,
...@@ -219,17 +260,25 @@ OPTION(prefix_3, "opt-remarks-filename", opt_remarks_filename, Separate, INVALID...@@ -219,17 +260,25 @@ OPTION(prefix_3, "opt-remarks-filename", opt_remarks_filename, Separate, INVALID
219 "YAML output file for optimization remarks", nullptr, nullptr)260 "YAML output file for optimization remarks", nullptr, nullptr)
220OPTION(prefix_3, "opt-remarks-with-hotness", opt_remarks_with_hotness, Flag, INVALID, INVALID, nullptr, 0, 0,261OPTION(prefix_3, "opt-remarks-with-hotness", opt_remarks_with_hotness, Flag, INVALID, INVALID, nullptr, 0, 0,
221 "Include hotness informations in the optimization remarks file", nullptr, nullptr)262 "Include hotness informations in the optimization remarks file", nullptr, nullptr)
263OPTION(prefix_2, "orphan-handling=", orphan_handling_eq, Joined, INVALID, orphan_handling, nullptr, 0, 0,
264 "Control how orphan sections are handled when linker script used", nullptr, nullptr)
265OPTION(prefix_2, "orphan-handling", orphan_handling, Separate, INVALID, INVALID, nullptr, 0, 0,
266 "Control how orphan sections are handled when linker script used", nullptr, nullptr)
222OPTION(prefix_3, "output=", alias_o_output, Joined, INVALID, o, nullptr, 0, 0, nullptr, nullptr, nullptr)267OPTION(prefix_3, "output=", alias_o_output, Joined, INVALID, o, nullptr, 0, 0, nullptr, nullptr, nullptr)
223OPTION(prefix_3, "output", alias_o_output2, Separate, INVALID, o, nullptr, 0, 0, nullptr, nullptr, nullptr)268OPTION(prefix_3, "output", alias_o_output2, Separate, INVALID, o, nullptr, 0, 0, nullptr, nullptr, nullptr)
224OPTION(prefix_1, "O", O, Joined, INVALID, INVALID, nullptr, 0, 0,269OPTION(prefix_1, "O", O, JoinedOrSeparate, INVALID, INVALID, nullptr, 0, 0,
225 "Optimize output file size", nullptr, nullptr)270 "Optimize output file size", nullptr, nullptr)
226OPTION(prefix_1, "o", o, JoinedOrSeparate, INVALID, INVALID, nullptr, 0, 0,271OPTION(prefix_1, "o", o, JoinedOrSeparate, INVALID, INVALID, nullptr, 0, 0,
227 "Path to file to write output", "<path>", nullptr)272 "Path to file to write output", "<path>", nullptr)
273OPTION(prefix_2, "pack-dyn-relocs=", pack_dyn_relocs_eq, Joined, INVALID, INVALID, nullptr, 0, 0,
274 "Pack dynamic relocations in the given format (none or android)", "<format>", nullptr)
228OPTION(prefix_2, "pic-executable", alias_pie_pic_executable, Flag, INVALID, pie, nullptr, 0, 0, nullptr, nullptr, nullptr)275OPTION(prefix_2, "pic-executable", alias_pie_pic_executable, Flag, INVALID, pie, nullptr, 0, 0, nullptr, nullptr, nullptr)
229OPTION(prefix_2, "pie", pie, Flag, INVALID, INVALID, nullptr, 0, 0,276OPTION(prefix_2, "pie", pie, Flag, INVALID, INVALID, nullptr, 0, 0,
230 "Create a position independent executable", nullptr, nullptr)277 "Create a position independent executable", nullptr, nullptr)
231OPTION(prefix_2, "plugin-opt=", plugin_opt_eq, Joined, INVALID, INVALID, nullptr, 0, 0, nullptr, nullptr, nullptr)278OPTION(prefix_2, "plugin-opt=", plugin_opt_eq, Joined, INVALID, plugin_opt, nullptr, 0, 0,
232OPTION(prefix_2, "plugin-opt", plugin_opt, Separate, INVALID, INVALID, nullptr, 0, 0, nullptr, nullptr, nullptr)279 "specifies LTO options for compatibility with GNU linkers", nullptr, nullptr)
280OPTION(prefix_2, "plugin-opt", plugin_opt, Separate, INVALID, INVALID, nullptr, 0, 0,
281 "specifies LTO options for compatibility with GNU linkers", nullptr, nullptr)
233OPTION(prefix_2, "plugin=", plugin_eq, Joined, INVALID, INVALID, nullptr, 0, 0, nullptr, nullptr, nullptr)282OPTION(prefix_2, "plugin=", plugin_eq, Joined, INVALID, INVALID, nullptr, 0, 0, nullptr, nullptr, nullptr)
234OPTION(prefix_2, "plugin", plugin, Separate, INVALID, INVALID, nullptr, 0, 0, nullptr, nullptr, nullptr)283OPTION(prefix_2, "plugin", plugin, Separate, INVALID, INVALID, nullptr, 0, 0, nullptr, nullptr, nullptr)
235OPTION(prefix_2, "print-gc-sections", print_gc_sections, Flag, INVALID, INVALID, nullptr, 0, 0,284OPTION(prefix_2, "print-gc-sections", print_gc_sections, Flag, INVALID, INVALID, nullptr, 0, 0,
...@@ -240,34 +289,42 @@ OPTION(prefix_2, "Qy", Qy, Flag, INVALID, INVALID, nullptr, 0, 0, nullptr, nullp...@@ -240,34 +289,42 @@ OPTION(prefix_2, "Qy", Qy, Flag, INVALID, INVALID, nullptr, 0, 0, nullptr, nullp
240OPTION(prefix_1, "q", alias_emit_relocs, Flag, INVALID, emit_relocs, nullptr, 0, 0, nullptr, nullptr, nullptr)289OPTION(prefix_1, "q", alias_emit_relocs, Flag, INVALID, emit_relocs, nullptr, 0, 0, nullptr, nullptr, nullptr)
241OPTION(prefix_2, "relocatable", relocatable, Flag, INVALID, INVALID, nullptr, 0, 0,290OPTION(prefix_2, "relocatable", relocatable, Flag, INVALID, INVALID, nullptr, 0, 0,
242 "Create relocatable object file", nullptr, nullptr)291 "Create relocatable object file", nullptr, nullptr)
243OPTION(prefix_2, "reproduce=", alias_reproduce_eq, Joined, INVALID, reproduce, nullptr, 0, 0, nullptr, nullptr, nullptr)292OPTION(prefix_2, "reproduce=", reproduce_eq, Joined, INVALID, reproduce, nullptr, 0, 0,
293 "Dump linker invocation and input files for debugging", nullptr, nullptr)
244OPTION(prefix_2, "reproduce", reproduce, Separate, INVALID, INVALID, nullptr, 0, 0,294OPTION(prefix_2, "reproduce", reproduce, Separate, INVALID, INVALID, nullptr, 0, 0,
245 "Dump linker invocation and input files for debugging", nullptr, nullptr)295 "Dump linker invocation and input files for debugging", nullptr, nullptr)
246OPTION(prefix_2, "retain-symbols-file=", retain_symbols_file, Joined, INVALID, INVALID, nullptr, 0, 0,296OPTION(prefix_2, "retain-symbols-file=", retain_symbols_file_eq, Joined, INVALID, retain_symbols_file, nullptr, 0, 0,
297 "Retain only the symbols listed in the file", "<file>", nullptr)
298OPTION(prefix_2, "retain-symbols-file", retain_symbols_file, Separate, INVALID, INVALID, nullptr, 0, 0,
247 "Retain only the symbols listed in the file", "<file>", nullptr)299 "Retain only the symbols listed in the file", "<file>", nullptr)
248OPTION(prefix_2, "retain-symbols-file", alias_retain_symbols_file, Separate, INVALID, retain_symbols_file, nullptr, 0, 0, nullptr, nullptr, nullptr)
249OPTION(prefix_2, "rpath-link=", rpath_link_eq, Joined, INVALID, INVALID, nullptr, 0, 0, nullptr, nullptr, nullptr)300OPTION(prefix_2, "rpath-link=", rpath_link_eq, Joined, INVALID, INVALID, nullptr, 0, 0, nullptr, nullptr, nullptr)
250OPTION(prefix_2, "rpath-link", rpath_link, Separate, INVALID, INVALID, nullptr, 0, 0, nullptr, nullptr, nullptr)301OPTION(prefix_2, "rpath-link", rpath_link, Separate, INVALID, INVALID, nullptr, 0, 0, nullptr, nullptr, nullptr)
251OPTION(prefix_2, "rpath=", alias_rpath_rpath, Joined, INVALID, rpath, nullptr, 0, 0, nullptr, nullptr, nullptr)302OPTION(prefix_2, "rpath=", rpath_eq, Joined, INVALID, rpath, nullptr, 0, 0,
303 "Add a DT_RUNPATH to the output", nullptr, nullptr)
252OPTION(prefix_2, "rpath", rpath, Separate, INVALID, INVALID, nullptr, 0, 0,304OPTION(prefix_2, "rpath", rpath, Separate, INVALID, INVALID, nullptr, 0, 0,
253 "Add a DT_RUNPATH to the output", nullptr, nullptr)305 "Add a DT_RUNPATH to the output", nullptr, nullptr)
254OPTION(prefix_2, "rsp-quoting=", rsp_quoting, Joined, INVALID, INVALID, nullptr, 0, 0,306OPTION(prefix_2, "rsp-quoting=", rsp_quoting_eq, Joined, INVALID, rsp_quoting, nullptr, 0, 0,
307 "Quoting style for response files. Values supported: windows|posix", nullptr, nullptr)
308OPTION(prefix_2, "rsp-quoting", rsp_quoting, Separate, INVALID, INVALID, nullptr, 0, 0,
255 "Quoting style for response files. Values supported: windows|posix", nullptr, nullptr)309 "Quoting style for response files. Values supported: windows|posix", nullptr, nullptr)
256OPTION(prefix_1, "R", alias_rpath_R, JoinedOrSeparate, INVALID, rpath, nullptr, 0, 0, nullptr, nullptr, nullptr)310OPTION(prefix_1, "R", alias_rpath_R, JoinedOrSeparate, INVALID, rpath, nullptr, 0, 0, nullptr, nullptr, nullptr)
257OPTION(prefix_1, "r", alias_relocatable_r, Flag, INVALID, relocatable, nullptr, 0, 0, nullptr, nullptr, nullptr)311OPTION(prefix_1, "r", alias_relocatable_r, Flag, INVALID, relocatable, nullptr, 0, 0, nullptr, nullptr, nullptr)
258OPTION(prefix_2, "save-temps", save_temps, Flag, INVALID, INVALID, nullptr, 0, 0, nullptr, nullptr, nullptr)312OPTION(prefix_2, "save-temps", save_temps, Flag, INVALID, INVALID, nullptr, 0, 0, nullptr, nullptr, nullptr)
259OPTION(prefix_2, "script=", alias_script, Joined, INVALID, script, nullptr, 0, 0, nullptr, nullptr, nullptr)313OPTION(prefix_2, "script=", script_eq, Joined, INVALID, script, nullptr, 0, 0,
314 "Read linker script", nullptr, nullptr)
260OPTION(prefix_2, "script", script, Separate, INVALID, INVALID, nullptr, 0, 0,315OPTION(prefix_2, "script", script, Separate, INVALID, INVALID, nullptr, 0, 0,
261 "Read linker script", nullptr, nullptr)316 "Read linker script", nullptr, nullptr)
262OPTION(prefix_2, "section-start", section_start, Separate, INVALID, INVALID, nullptr, 0, 0,317OPTION(prefix_2, "section-start", section_start, Separate, INVALID, INVALID, nullptr, 0, 0,
263 "Set address of section", "<address>", nullptr)318 "Set address of section", "<address>", nullptr)
264OPTION(prefix_2, "shared", shared, Flag, INVALID, INVALID, nullptr, 0, 0,319OPTION(prefix_2, "shared", shared, Flag, INVALID, INVALID, nullptr, 0, 0,
265 "Build a shared object", nullptr, nullptr)320 "Build a shared object", nullptr, nullptr)
266OPTION(prefix_2, "soname=", soname, Joined, INVALID, INVALID, nullptr, 0, 0,321OPTION(prefix_2, "soname=", soname_eq, Joined, INVALID, soname, nullptr, 0, 0,
322 "Set DT_SONAME", nullptr, nullptr)
323OPTION(prefix_2, "soname", soname, Separate, INVALID, INVALID, nullptr, 0, 0,
267 "Set DT_SONAME", nullptr, nullptr)324 "Set DT_SONAME", nullptr, nullptr)
268OPTION(prefix_2, "soname", alias_soname_soname, Separate, INVALID, soname, nullptr, 0, 0, nullptr, nullptr, nullptr)
269OPTION(prefix_2, "sort-common", sort_common, Flag, INVALID, INVALID, nullptr, 0, 0, nullptr, nullptr, nullptr)325OPTION(prefix_2, "sort-common", sort_common, Flag, INVALID, INVALID, nullptr, 0, 0, nullptr, nullptr, nullptr)
270OPTION(prefix_2, "sort-section=", alias_sort_section, Joined, INVALID, sort_section, nullptr, 0, 0, nullptr, nullptr, nullptr)326OPTION(prefix_2, "sort-section=", sort_section_eq, Joined, INVALID, sort_section, nullptr, 0, 0,
327 "Specifies sections sorting rule when linkerscript is used", nullptr, nullptr)
271OPTION(prefix_2, "sort-section", sort_section, Separate, INVALID, INVALID, nullptr, 0, 0,328OPTION(prefix_2, "sort-section", sort_section, Separate, INVALID, INVALID, nullptr, 0, 0,
272 "Specifies sections sorting rule when linkerscript is used", nullptr, nullptr)329 "Specifies sections sorting rule when linkerscript is used", nullptr, nullptr)
273OPTION(prefix_2, "start-group", start_group, Flag, INVALID, INVALID, nullptr, 0, 0, nullptr, nullptr, nullptr)330OPTION(prefix_2, "start-group", start_group, Flag, INVALID, INVALID, nullptr, 0, 0, nullptr, nullptr, nullptr)
...@@ -281,7 +338,9 @@ OPTION(prefix_2, "strip-debug", strip_debug, Flag, INVALID, INVALID, nullptr, 0,...@@ -281,7 +338,9 @@ OPTION(prefix_2, "strip-debug", strip_debug, Flag, INVALID, INVALID, nullptr, 0,
281 "Strip debugging information", nullptr, nullptr)338 "Strip debugging information", nullptr, nullptr)
282OPTION(prefix_2, "symbol-ordering-file", symbol_ordering_file, Separate, INVALID, INVALID, nullptr, 0, 0,339OPTION(prefix_2, "symbol-ordering-file", symbol_ordering_file, Separate, INVALID, INVALID, nullptr, 0, 0,
283 "Layout sections in the order specified by symbol file", nullptr, nullptr)340 "Layout sections in the order specified by symbol file", nullptr, nullptr)
284OPTION(prefix_2, "sysroot=", sysroot, Joined, INVALID, INVALID, nullptr, 0, 0,341OPTION(prefix_2, "sysroot=", sysroot_eq, Joined, INVALID, sysroot, nullptr, 0, 0,
342 "Set the system root", nullptr, nullptr)
343OPTION(prefix_2, "sysroot", sysroot, Separate, INVALID, INVALID, nullptr, 0, 0,
285 "Set the system root", nullptr, nullptr)344 "Set the system root", nullptr, nullptr)
286OPTION(prefix_1, "S", alias_strip_debug_S, Flag, INVALID, strip_debug, nullptr, 0, 0, nullptr, nullptr, nullptr)345OPTION(prefix_1, "S", alias_strip_debug_S, Flag, INVALID, strip_debug, nullptr, 0, 0, nullptr, nullptr, nullptr)
287OPTION(prefix_1, "s", alias_strip_all, Flag, INVALID, strip_all, nullptr, 0, 0, nullptr, nullptr, nullptr)346OPTION(prefix_1, "s", alias_strip_all, Flag, INVALID, strip_all, nullptr, 0, 0, nullptr, nullptr, nullptr)
...@@ -289,12 +348,16 @@ OPTION(prefix_2, "target1-abs", target1_abs, Flag, INVALID, INVALID, nullptr, 0,...@@ -289,12 +348,16 @@ OPTION(prefix_2, "target1-abs", target1_abs, Flag, INVALID, INVALID, nullptr, 0,
289 "Interpret R_ARM_TARGET1 as R_ARM_ABS32", nullptr, nullptr)348 "Interpret R_ARM_TARGET1 as R_ARM_ABS32", nullptr, nullptr)
290OPTION(prefix_2, "target1-rel", target1_rel, Flag, INVALID, INVALID, nullptr, 0, 0,349OPTION(prefix_2, "target1-rel", target1_rel, Flag, INVALID, INVALID, nullptr, 0, 0,
291 "Interpret R_ARM_TARGET1 as R_ARM_REL32", nullptr, nullptr)350 "Interpret R_ARM_TARGET1 as R_ARM_REL32", nullptr, nullptr)
292OPTION(prefix_2, "target2=", target2, Joined, INVALID, INVALID, nullptr, 0, 0,351OPTION(prefix_2, "target2=", target2_eq, Joined, INVALID, target2, nullptr, 0, 0,
352 "Interpret R_ARM_TARGET2 as <type>, where <type> is one of rel, abs, or got-rel", "<type>", nullptr)
353OPTION(prefix_2, "target2", target2, Separate, INVALID, INVALID, nullptr, 0, 0,
293 "Interpret R_ARM_TARGET2 as <type>, where <type> is one of rel, abs, or got-rel", "<type>", nullptr)354 "Interpret R_ARM_TARGET2 as <type>, where <type> is one of rel, abs, or got-rel", "<type>", nullptr)
294OPTION(prefix_2, "Tbss=", alias_Tbss, Joined, INVALID, Tbss, nullptr, 0, 0, nullptr, nullptr, nullptr)355OPTION(prefix_2, "Tbss=", Tbss_eq, Joined, INVALID, Tbss, nullptr, 0, 0,
356 "Same as --section-start with .bss as the sectionname", nullptr, nullptr)
295OPTION(prefix_2, "Tbss", Tbss, Separate, INVALID, INVALID, nullptr, 0, 0,357OPTION(prefix_2, "Tbss", Tbss, Separate, INVALID, INVALID, nullptr, 0, 0,
296 "Same as --section-start with .bss as the sectionname", nullptr, nullptr)358 "Same as --section-start with .bss as the sectionname", nullptr, nullptr)
297OPTION(prefix_2, "Tdata=", alias_Tdata, Joined, INVALID, Tdata, nullptr, 0, 0, nullptr, nullptr, nullptr)359OPTION(prefix_2, "Tdata=", Tdata_eq, Joined, INVALID, Tdata, nullptr, 0, 0,
360 "Same as --section-start with .data as the sectionname", nullptr, nullptr)
298OPTION(prefix_2, "Tdata", Tdata, Separate, INVALID, INVALID, nullptr, 0, 0,361OPTION(prefix_2, "Tdata", Tdata, Separate, INVALID, INVALID, nullptr, 0, 0,
299 "Same as --section-start with .data as the sectionname", nullptr, nullptr)362 "Same as --section-start with .data as the sectionname", nullptr, nullptr)
300OPTION(prefix_2, "thinlto-cache-dir=", thinlto_cache_dir, Joined, INVALID, INVALID, nullptr, 0, 0,363OPTION(prefix_2, "thinlto-cache-dir=", thinlto_cache_dir, Joined, INVALID, INVALID, nullptr, 0, 0,
...@@ -305,27 +368,33 @@ OPTION(prefix_2, "thinlto-jobs=", thinlto_jobs, Joined, INVALID, INVALID, nullpt...@@ -305,27 +368,33 @@ OPTION(prefix_2, "thinlto-jobs=", thinlto_jobs, Joined, INVALID, INVALID, nullpt
305 "Number of ThinLTO jobs", nullptr, nullptr)368 "Number of ThinLTO jobs", nullptr, nullptr)
306OPTION(prefix_2, "threads", threads, Flag, INVALID, INVALID, nullptr, 0, 0,369OPTION(prefix_2, "threads", threads, Flag, INVALID, INVALID, nullptr, 0, 0,
307 "Run the linker multi-threaded", nullptr, nullptr)370 "Run the linker multi-threaded", nullptr, nullptr)
308OPTION(prefix_2, "trace-symbol=", trace_trace_symbol_eq, Joined, INVALID, trace_symbol, nullptr, 0, 0, nullptr, nullptr, nullptr)371OPTION(prefix_2, "trace-symbol=", trace_symbol_eq, Joined, INVALID, trace_symbol, nullptr, 0, 0,
372 "Trace references to symbols", nullptr, nullptr)
309OPTION(prefix_2, "trace-symbol", trace_symbol, Separate, INVALID, INVALID, nullptr, 0, 0,373OPTION(prefix_2, "trace-symbol", trace_symbol, Separate, INVALID, INVALID, nullptr, 0, 0,
310 "Trace references to symbols", nullptr, nullptr)374 "Trace references to symbols", nullptr, nullptr)
311OPTION(prefix_2, "trace", trace, Flag, INVALID, INVALID, nullptr, 0, 0,375OPTION(prefix_2, "trace", trace, Flag, INVALID, INVALID, nullptr, 0, 0,
312 "Print the names of the input files", nullptr, nullptr)376 "Print the names of the input files", nullptr, nullptr)
313OPTION(prefix_2, "Ttext-segment=", alias_Ttext_segment_eq, Joined, INVALID, Ttext, nullptr, 0, 0, nullptr, nullptr, nullptr)377OPTION(prefix_2, "Ttext-segment=", alias_Ttext_segment_eq, Joined, INVALID, Ttext, nullptr, 0, 0, nullptr, nullptr, nullptr)
314OPTION(prefix_2, "Ttext-segment", alias_Ttext_segment, Separate, INVALID, Ttext, nullptr, 0, 0, nullptr, nullptr, nullptr)378OPTION(prefix_2, "Ttext-segment", alias_Ttext_segment, Separate, INVALID, Ttext, nullptr, 0, 0, nullptr, nullptr, nullptr)
315OPTION(prefix_2, "Ttext=", alias_Ttext, Joined, INVALID, Ttext, nullptr, 0, 0, nullptr, nullptr, nullptr)379OPTION(prefix_2, "Ttext=", Ttext_eq, Joined, INVALID, Ttext, nullptr, 0, 0,
380 "Same as --section-start with .text as the sectionname", nullptr, nullptr)
316OPTION(prefix_2, "Ttext", Ttext, Separate, INVALID, INVALID, nullptr, 0, 0,381OPTION(prefix_2, "Ttext", Ttext, Separate, INVALID, INVALID, nullptr, 0, 0,
317 "Same as --section-start with .text as the sectionname", nullptr, nullptr)382 "Same as --section-start with .text as the sectionname", nullptr, nullptr)
318OPTION(prefix_1, "T", alias_script_T, JoinedOrSeparate, INVALID, script, nullptr, 0, 0, nullptr, nullptr, nullptr)383OPTION(prefix_1, "T", alias_script_T, JoinedOrSeparate, INVALID, script, nullptr, 0, 0, nullptr, nullptr, nullptr)
319OPTION(prefix_1, "t", alias_trace, Flag, INVALID, trace, nullptr, 0, 0, nullptr, nullptr, nullptr)384OPTION(prefix_1, "t", alias_trace, Flag, INVALID, trace, nullptr, 0, 0, nullptr, nullptr, nullptr)
320OPTION(prefix_2, "undefined=", alias_undefined_eq, Joined, INVALID, undefined, nullptr, 0, 0, nullptr, nullptr, nullptr)385OPTION(prefix_2, "undefined=", undefined_eq, Joined, INVALID, undefined, nullptr, 0, 0,
386 "Force undefined symbol during linking", nullptr, nullptr)
321OPTION(prefix_2, "undefined", undefined, Separate, INVALID, INVALID, nullptr, 0, 0,387OPTION(prefix_2, "undefined", undefined, Separate, INVALID, INVALID, nullptr, 0, 0,
322 "Force undefined symbol during linking", nullptr, nullptr)388 "Force undefined symbol during linking", nullptr, nullptr)
323OPTION(prefix_2, "unresolved-symbols=", unresolved_symbols, Joined, INVALID, INVALID, nullptr, 0, 0,389OPTION(prefix_2, "unresolved-symbols=", unresolved_symbols_eq, Joined, INVALID, unresolved_symbols, nullptr, 0, 0,
390 "Determine how to handle unresolved symbols", nullptr, nullptr)
391OPTION(prefix_2, "unresolved-symbols", unresolved_symbols, Separate, INVALID, INVALID, nullptr, 0, 0,
324 "Determine how to handle unresolved symbols", nullptr, nullptr)392 "Determine how to handle unresolved symbols", nullptr, nullptr)
325OPTION(prefix_1, "u", alias_undefined_u, JoinedOrSeparate, INVALID, undefined, nullptr, 0, 0, nullptr, nullptr, nullptr)393OPTION(prefix_1, "u", alias_undefined_u, JoinedOrSeparate, INVALID, undefined, nullptr, 0, 0, nullptr, nullptr, nullptr)
326OPTION(prefix_2, "verbose", verbose, Flag, INVALID, INVALID, nullptr, 0, 0,394OPTION(prefix_2, "verbose", verbose, Flag, INVALID, INVALID, nullptr, 0, 0,
327 "Verbose mode", nullptr, nullptr)395 "Verbose mode", nullptr, nullptr)
328OPTION(prefix_2, "version-script=", alias_version_script_eq, Joined, INVALID, version_script, nullptr, 0, 0, nullptr, nullptr, nullptr)396OPTION(prefix_2, "version-script=", version_script_eq, Joined, INVALID, version_script, nullptr, 0, 0,
397 "Read a version script", nullptr, nullptr)
329OPTION(prefix_2, "version-script", version_script, Separate, INVALID, INVALID, nullptr, 0, 0,398OPTION(prefix_2, "version-script", version_script, Separate, INVALID, INVALID, nullptr, 0, 0,
330 "Read a version script", nullptr, nullptr)399 "Read a version script", nullptr, nullptr)
331OPTION(prefix_2, "version", version, Flag, INVALID, INVALID, nullptr, 0, 0,400OPTION(prefix_2, "version", version, Flag, INVALID, INVALID, nullptr, 0, 0,
...@@ -336,12 +405,14 @@ OPTION(prefix_1, "v", v, Flag, INVALID, INVALID, nullptr, 0, 0,...@@ -336,12 +405,14 @@ OPTION(prefix_1, "v", v, Flag, INVALID, INVALID, nullptr, 0, 0,
336OPTION(prefix_2, "warn-common", warn_common, Flag, INVALID, INVALID, nullptr, 0, 0,405OPTION(prefix_2, "warn-common", warn_common, Flag, INVALID, INVALID, nullptr, 0, 0,
337 "Warn about duplicate common symbols", nullptr, nullptr)406 "Warn about duplicate common symbols", nullptr, nullptr)
338OPTION(prefix_2, "warn-execstack", warn_execstack, Flag, INVALID, INVALID, nullptr, 0, 0, nullptr, nullptr, nullptr)407OPTION(prefix_2, "warn-execstack", warn_execstack, Flag, INVALID, INVALID, nullptr, 0, 0, nullptr, nullptr, nullptr)
408OPTION(prefix_2, "warn-once", warn_once, Flag, INVALID, INVALID, nullptr, 0, 0, nullptr, nullptr, nullptr)
339OPTION(prefix_2, "warn-shared-textrel", warn_shared_textrel, Flag, INVALID, INVALID, nullptr, 0, 0, nullptr, nullptr, nullptr)409OPTION(prefix_2, "warn-shared-textrel", warn_shared_textrel, Flag, INVALID, INVALID, nullptr, 0, 0, nullptr, nullptr, nullptr)
340OPTION(prefix_2, "warn-unresolved-symbols", warn_unresolved_symbols, Flag, INVALID, INVALID, nullptr, 0, 0,410OPTION(prefix_2, "warn-unresolved-symbols", warn_unresolved_symbols, Flag, INVALID, INVALID, nullptr, 0, 0,
341 "Report unresolved symbols as warnings", nullptr, nullptr)411 "Report unresolved symbols as warnings", nullptr, nullptr)
342OPTION(prefix_2, "whole-archive", whole_archive, Flag, INVALID, INVALID, nullptr, 0, 0,412OPTION(prefix_2, "whole-archive", whole_archive, Flag, INVALID, INVALID, nullptr, 0, 0,
343 "Force load of all members in a static library", nullptr, nullptr)413 "Force load of all members in a static library", nullptr, nullptr)
344OPTION(prefix_2, "wrap=", alias_wrap_wrap, Joined, INVALID, wrap, nullptr, 0, 0, nullptr, nullptr, nullptr)414OPTION(prefix_2, "wrap=", wrap_eq, Joined, INVALID, wrap, nullptr, 0, 0,
415 "Use wrapper functions for symbol", "<symbol>", nullptr)
345OPTION(prefix_2, "wrap", wrap, Separate, INVALID, INVALID, nullptr, 0, 0,416OPTION(prefix_2, "wrap", wrap, Separate, INVALID, INVALID, nullptr, 0, 0,
346 "Use wrapper functions for symbol", "<symbol>", nullptr)417 "Use wrapper functions for symbol", "<symbol>", nullptr)
347OPTION(prefix_1, "X", alias_discard_locals_X, Flag, INVALID, discard_locals, nullptr, 0, 0, nullptr, nullptr, nullptr)418OPTION(prefix_1, "X", alias_discard_locals_X, Flag, INVALID, discard_locals, nullptr, 0, 0, nullptr, nullptr, nullptr)
...@@ -350,3 +421,10 @@ OPTION(prefix_1, "y", alias_trace_symbol_y, JoinedOrSeparate, INVALID, trace_sym...@@ -350,3 +421,10 @@ OPTION(prefix_1, "y", alias_trace_symbol_y, JoinedOrSeparate, INVALID, trace_sym
350OPTION(prefix_1, "z", z, JoinedOrSeparate, INVALID, INVALID, nullptr, 0, 0,421OPTION(prefix_1, "z", z, JoinedOrSeparate, INVALID, INVALID, nullptr, 0, 0,
351 "Linker option extensions", "<option>", nullptr)422 "Linker option extensions", "<option>", nullptr)
352#endif // OPTION423#endif // OPTION
424
425#ifdef OPTTABLE_ARG_INIT
426//////////
427// Option Values
428
429
430#endif // OPTTABLE_ARG_INIT
deps/lld-prebuilt/MinGW/Options.inc created+114
...@@ -0,0 +1,114 @@
1/*===- TableGen'erated file -------------------------------------*- C++ -*-===*\
2|* *|
3|* Option Parsing Definitions *|
4|* *|
5|* Automatically generated file, do not edit! *|
6|* *|
7\*===----------------------------------------------------------------------===*/
8
9/////////
10// Prefixes
11
12#ifdef PREFIX
13#define COMMA ,
14PREFIX(prefix_0, {nullptr})
15PREFIX(prefix_1, {"-" COMMA nullptr})
16PREFIX(prefix_3, {"--" COMMA nullptr})
17PREFIX(prefix_2, {"--" COMMA "-" COMMA nullptr})
18#undef COMMA
19#endif // PREFIX
20
21/////////
22// Groups
23
24#ifdef OPTION
25
26//////////
27// Options
28
29OPTION(prefix_0, "<input>", INPUT, Input, INVALID, INVALID, nullptr, 0, 0, nullptr, nullptr, nullptr)
30OPTION(prefix_0, "<unknown>", UNKNOWN, Unknown, INVALID, INVALID, nullptr, 0, 0, nullptr, nullptr, nullptr)
31OPTION(prefix_1, "###", _HASH_HASH_HASH, Flag, INVALID, INVALID, nullptr, 0, 0,
32 "Print (but do not run) the commands to run for this compilation", nullptr, nullptr)
33OPTION(prefix_2, "Bdynamic", Bdynamic, Flag, INVALID, INVALID, nullptr, 0, 0,
34 "Link against shared libraries", nullptr, nullptr)
35OPTION(prefix_2, "Bstatic", Bstatic, Flag, INVALID, INVALID, nullptr, 0, 0,
36 "Do not link against shared libraries", nullptr, nullptr)
37OPTION(prefix_2, "build-id", build_id, Flag, INVALID, INVALID, nullptr, 0, 0, nullptr, nullptr, nullptr)
38OPTION(prefix_2, "disable-auto-image-base", disable_auto_image_base, Flag, INVALID, INVALID, nullptr, 0, 0, nullptr, nullptr, nullptr)
39OPTION(prefix_2, "dynamicbase", dynamicbase, Flag, INVALID, INVALID, nullptr, 0, 0,
40 "Enable ASLR", nullptr, nullptr)
41OPTION(prefix_2, "enable-auto-image-base", enable_auto_image_base, Flag, INVALID, INVALID, nullptr, 0, 0, nullptr, nullptr, nullptr)
42OPTION(prefix_2, "enable-auto-import", enable_auto_import, Flag, INVALID, INVALID, nullptr, 0, 0, nullptr, nullptr, nullptr)
43OPTION(prefix_2, "entry", entry, Separate, INVALID, INVALID, nullptr, 0, 0,
44 "Name of entry point symbol", "<entry>", nullptr)
45OPTION(prefix_2, "export-all-symbols", export_all_symbols, Flag, INVALID, INVALID, nullptr, 0, 0,
46 "Export all symbols even if a def file or dllexport attributes are used", nullptr, nullptr)
47OPTION(prefix_1, "e", alias_entry_e, JoinedOrSeparate, INVALID, entry, nullptr, 0, 0, nullptr, nullptr, nullptr)
48OPTION(prefix_3, "full-shutdown", full_shutdown, Flag, INVALID, INVALID, nullptr, 0, 0, nullptr, nullptr, nullptr)
49OPTION(prefix_2, "gc-sections", gc_sections, Flag, INVALID, INVALID, nullptr, 0, 0,
50 "Remove unused sections", nullptr, nullptr)
51OPTION(prefix_2, "high-entropy-va", high_entropy_va, Flag, INVALID, INVALID, nullptr, 0, 0,
52 "Enable 64-bit ASLR", nullptr, nullptr)
53OPTION(prefix_2, "icf=", icf, Joined, INVALID, INVALID, nullptr, 0, 0,
54 "Identical code folding", nullptr, nullptr)
55OPTION(prefix_2, "image-base", image_base, Separate, INVALID, INVALID, nullptr, 0, 0,
56 "Base address of the program", nullptr, nullptr)
57OPTION(prefix_3, "large-address-aware", large_address_aware, Flag, INVALID, INVALID, nullptr, 0, 0,
58 "Enable large addresses", nullptr, nullptr)
59OPTION(prefix_1, "L", L, JoinedOrSeparate, INVALID, INVALID, nullptr, 0, 0,
60 "Add a directory to the library search path", "<dir>", nullptr)
61OPTION(prefix_1, "l", l, JoinedOrSeparate, INVALID, INVALID, nullptr, 0, 0,
62 "Root name of library to use", "<libName>", nullptr)
63OPTION(prefix_2, "major-image-version", major_image_version, Separate, INVALID, INVALID, nullptr, 0, 0, nullptr, nullptr, nullptr)
64OPTION(prefix_2, "minor-image-version", minor_image_version, Separate, INVALID, INVALID, nullptr, 0, 0, nullptr, nullptr, nullptr)
65OPTION(prefix_2, "mllvm", mllvm, Separate, INVALID, INVALID, nullptr, 0, 0, nullptr, nullptr, nullptr)
66OPTION(prefix_1, "m", m, JoinedOrSeparate, INVALID, INVALID, nullptr, 0, 0,
67 "Set target emulation", nullptr, nullptr)
68OPTION(prefix_2, "no-gc-sections", no_gc_sections, Flag, INVALID, INVALID, nullptr, 0, 0,
69 "Don't remove unused sections", nullptr, nullptr)
70OPTION(prefix_2, "no-seh", no_seh, Flag, INVALID, INVALID, nullptr, 0, 0, nullptr, nullptr, nullptr)
71OPTION(prefix_2, "no-whole-archive", no_whole_archive, Flag, INVALID, INVALID, nullptr, 0, 0,
72 "No longer include all object files for following archives", nullptr, nullptr)
73OPTION(prefix_2, "nxcompat", nxcompat, Flag, INVALID, INVALID, nullptr, 0, 0,
74 "Enable data execution prevention", nullptr, nullptr)
75OPTION(prefix_3, "out-implib=", out_implib_eq, Joined, INVALID, out_implib, nullptr, 0, 0, nullptr, nullptr, nullptr)
76OPTION(prefix_3, "out-implib", out_implib, Separate, INVALID, INVALID, nullptr, 0, 0,
77 "Import library name", nullptr, nullptr)
78OPTION(prefix_2, "output-def", output_def, Separate, INVALID, INVALID, nullptr, 0, 0,
79 "Output def file", nullptr, nullptr)
80OPTION(prefix_1, "O", O, Joined, INVALID, INVALID, nullptr, 0, 0,
81 "Optimize output file size", nullptr, nullptr)
82OPTION(prefix_1, "o", o, JoinedOrSeparate, INVALID, INVALID, nullptr, 0, 0,
83 "Path to file to write output", "<path>", nullptr)
84OPTION(prefix_2, "pic-executable", pic_executable, Flag, INVALID, INVALID, nullptr, 0, 0, nullptr, nullptr, nullptr)
85OPTION(prefix_2, "shared", shared, Flag, INVALID, INVALID, nullptr, 0, 0,
86 "Build a shared object", nullptr, nullptr)
87OPTION(prefix_2, "stack", stack, Separate, INVALID, INVALID, nullptr, 0, 0, nullptr, nullptr, nullptr)
88OPTION(prefix_2, "strip-all", strip_all, Flag, INVALID, INVALID, nullptr, 0, 0,
89 "Omit all symbol information from the output binary", nullptr, nullptr)
90OPTION(prefix_2, "subsystem", subs, Separate, INVALID, INVALID, nullptr, 0, 0,
91 "Specify subsystem", nullptr, nullptr)
92OPTION(prefix_2, "sysroot", sysroot, Joined, INVALID, INVALID, nullptr, 0, 0,
93 "Sysroot", nullptr, nullptr)
94OPTION(prefix_1, "s", alias_strip_s, Flag, INVALID, strip_all, nullptr, 0, 0, nullptr, nullptr, nullptr)
95OPTION(prefix_2, "tsaware", tsaware, Flag, INVALID, INVALID, nullptr, 0, 0,
96 "Create Terminal Server aware executable", nullptr, nullptr)
97OPTION(prefix_2, "verbose", verbose, Flag, INVALID, INVALID, nullptr, 0, 0,
98 "Verbose mode", nullptr, nullptr)
99OPTION(prefix_2, "version", version, Flag, INVALID, INVALID, nullptr, 0, 0,
100 "Display the version number and exit", nullptr, nullptr)
101OPTION(prefix_1, "v", v, Flag, INVALID, INVALID, nullptr, 0, 0,
102 "Display the version number", nullptr, nullptr)
103OPTION(prefix_2, "whole-archive", whole_archive, Flag, INVALID, INVALID, nullptr, 0, 0,
104 "Include all object files for following archives", nullptr, nullptr)
105OPTION(prefix_2, "Xlink=", Xlink, Joined, INVALID, INVALID, nullptr, 0, 0,
106 "Pass <arg> to the COFF linker", "<arg>", nullptr)
107#endif // OPTION
108
109#ifdef OPTTABLE_ARG_INIT
110//////////
111// Option Values
112
113
114#endif // OPTTABLE_ARG_INIT
deps/lld-prebuilt/lld/Common/Version.inc created+6
...@@ -0,0 +1,6 @@
1#define LLD_VERSION 6.0.0
2#define LLD_VERSION_STRING "6.0.0"
3#define LLD_VERSION_MAJOR 6
4#define LLD_VERSION_MINOR 0
5#define LLD_REVISION_STRING ""
6#define LLD_REPOSITORY_STRING ""
deps/lld-prebuilt/lld/Config/Version.inc deleted-6
...@@ -1,6 +0,0 @@
1#define LLD_VERSION 5.0.1
2#define LLD_VERSION_STRING "5.0.1"
3#define LLD_VERSION_MAJOR 5
4#define LLD_VERSION_MINOR 0
5#define LLD_REVISION_STRING ""
6#define LLD_REPOSITORY_STRING ""
deps/lld-prebuilt/wasm/Options.inc created+106
...@@ -0,0 +1,106 @@
1/*===- TableGen'erated file -------------------------------------*- C++ -*-===*\
2|* *|
3|* Option Parsing Definitions *|
4|* *|
5|* Automatically generated file, do not edit! *|
6|* *|
7\*===----------------------------------------------------------------------===*/
8
9/////////
10// Prefixes
11
12#ifdef PREFIX
13#define COMMA ,
14PREFIX(prefix_0, {nullptr})
15PREFIX(prefix_2, {"-" COMMA nullptr})
16PREFIX(prefix_1, {"--" COMMA "-" COMMA nullptr})
17#undef COMMA
18#endif // PREFIX
19
20/////////
21// Groups
22
23#ifdef OPTION
24
25//////////
26// Options
27
28OPTION(prefix_0, "<input>", INPUT, Input, INVALID, INVALID, nullptr, 0, 0, nullptr, nullptr, nullptr)
29OPTION(prefix_0, "<unknown>", UNKNOWN, Unknown, INVALID, INVALID, nullptr, 0, 0, nullptr, nullptr, nullptr)
30OPTION(prefix_1, "allow-undefined-file=", allow_undefined_file, Joined, INVALID, INVALID, nullptr, 0, 0,
31 "Allow symbols listed in <file> to be undefined in linked binary", nullptr, nullptr)
32OPTION(prefix_2, "allow-undefined-file", allow_undefined_file_s, Separate, INVALID, allow_undefined_file, nullptr, 0, 0, nullptr, nullptr, nullptr)
33OPTION(prefix_1, "allow-undefined", allow_undefined, Flag, INVALID, INVALID, nullptr, 0, 0,
34 "Allow undefined symbols in linked binary", nullptr, nullptr)
35OPTION(prefix_1, "check-signatures", check_signatures, Flag, INVALID, INVALID, nullptr, 0, 0,
36 "Check function signatures", nullptr, nullptr)
37OPTION(prefix_1, "color-diagnostics=", color_diagnostics_eq, Joined, INVALID, INVALID, nullptr, 0, 0,
38 "Use colors in diagnostics", nullptr, nullptr)
39OPTION(prefix_1, "color-diagnostics", color_diagnostics, Flag, INVALID, INVALID, nullptr, 0, 0,
40 "Use colors in diagnostics", nullptr, nullptr)
41OPTION(prefix_1, "emit-relocs", emit_relocs, Flag, INVALID, INVALID, nullptr, 0, 0,
42 "Generate relocations in output", nullptr, nullptr)
43OPTION(prefix_1, "entry=", alias_entry_entry, Joined, INVALID, entry, nullptr, 0, 0, nullptr, nullptr, nullptr)
44OPTION(prefix_1, "entry", entry, Separate, INVALID, INVALID, nullptr, 0, 0,
45 "Name of entry point symbol", "<entry>", nullptr)
46OPTION(prefix_1, "error-limit=", error_limit, Joined, INVALID, INVALID, nullptr, 0, 0,
47 "Maximum number of errors to emit before stopping (0 = no limit)", nullptr, nullptr)
48OPTION(prefix_2, "e", alias_entry_e, JoinedOrSeparate, INVALID, entry, nullptr, 0, 0, nullptr, nullptr, nullptr)
49OPTION(prefix_1, "global-base=", global_base, Joined, INVALID, INVALID, nullptr, 0, 0,
50 "Where to start to place global data", nullptr, nullptr)
51OPTION(prefix_1, "help", help, Flag, INVALID, INVALID, nullptr, 0, 0,
52 "Print option help", nullptr, nullptr)
53OPTION(prefix_1, "import-memory", import_memory, Flag, INVALID, INVALID, nullptr, 0, 0,
54 "Import memory from the environment", nullptr, nullptr)
55OPTION(prefix_1, "initial-memory=", initial_memory, Joined, INVALID, INVALID, nullptr, 0, 0,
56 "Initial size of the linear memory", nullptr, nullptr)
57OPTION(prefix_2, "i", alias_initial_memory_i, Flag, INVALID, initial_memory, nullptr, 0, 0, nullptr, nullptr, nullptr)
58OPTION(prefix_2, "L", L, JoinedOrSeparate, INVALID, INVALID, nullptr, 0, 0,
59 "Add a directory to the library search path", "<dir>", nullptr)
60OPTION(prefix_2, "l", l, JoinedOrSeparate, INVALID, INVALID, nullptr, 0, 0,
61 "Root name of library to use", "<libName>", nullptr)
62OPTION(prefix_1, "max-memory=", max_memory, Joined, INVALID, INVALID, nullptr, 0, 0,
63 "Maximum size of the linear memory", nullptr, nullptr)
64OPTION(prefix_1, "mllvm", mllvm, Separate, INVALID, INVALID, nullptr, 0, 0,
65 "Options to pass to LLVM", nullptr, nullptr)
66OPTION(prefix_2, "m", alias_max_memory_m, Flag, INVALID, max_memory, nullptr, 0, 0, nullptr, nullptr, nullptr)
67OPTION(prefix_1, "no-check-signatures", no_check_signatures, Flag, INVALID, INVALID, nullptr, 0, 0,
68 "Don't check function signatures", nullptr, nullptr)
69OPTION(prefix_1, "no-color-diagnostics", no_color_diagnostics, Flag, INVALID, INVALID, nullptr, 0, 0,
70 "Do not use colors in diagnostics", nullptr, nullptr)
71OPTION(prefix_1, "no-entry", no_entry, Flag, INVALID, INVALID, nullptr, 0, 0,
72 "Do not output any entry point", nullptr, nullptr)
73OPTION(prefix_1, "no-threads", no_threads, Flag, INVALID, INVALID, nullptr, 0, 0,
74 "Do not run the linker multi-threaded", nullptr, nullptr)
75OPTION(prefix_2, "o", o, JoinedOrSeparate, INVALID, INVALID, nullptr, 0, 0,
76 "Path to file to write output", "<path>", nullptr)
77OPTION(prefix_1, "relocatable", relocatable, Flag, INVALID, INVALID, nullptr, 0, 0,
78 "Create relocatable object file", nullptr, nullptr)
79OPTION(prefix_2, "r", alias_relocatable_r, Flag, INVALID, relocatable, nullptr, 0, 0, nullptr, nullptr, nullptr)
80OPTION(prefix_1, "strip-all", strip_all, Flag, INVALID, INVALID, nullptr, 0, 0,
81 "Strip all symbols", nullptr, nullptr)
82OPTION(prefix_1, "strip-debug", strip_debug, Flag, INVALID, INVALID, nullptr, 0, 0,
83 "Strip debugging information", nullptr, nullptr)
84OPTION(prefix_1, "threads", threads, Flag, INVALID, INVALID, nullptr, 0, 0,
85 "Run the linker multi-threaded", nullptr, nullptr)
86OPTION(prefix_1, "undefined=", undefined_eq, Joined, INVALID, undefined, nullptr, 0, 0,
87 "Force undefined symbol during linking", nullptr, nullptr)
88OPTION(prefix_1, "undefined", undefined, Separate, INVALID, INVALID, nullptr, 0, 0,
89 "Force undefined symbol during linking", nullptr, nullptr)
90OPTION(prefix_2, "u", alias_undefined_u, JoinedOrSeparate, INVALID, undefined, nullptr, 0, 0, nullptr, nullptr, nullptr)
91OPTION(prefix_1, "verbose", verbose, Flag, INVALID, INVALID, nullptr, 0, 0,
92 "Verbose mode", nullptr, nullptr)
93OPTION(prefix_1, "version", version, Flag, INVALID, INVALID, nullptr, 0, 0,
94 "Display the version number and exit", nullptr, nullptr)
95OPTION(prefix_2, "v", v, Flag, INVALID, INVALID, nullptr, 0, 0,
96 "Display the version number", nullptr, nullptr)
97OPTION(prefix_2, "z", z, JoinedOrSeparate, INVALID, INVALID, nullptr, 0, 0,
98 "Linker option extensions", "<option>", nullptr)
99#endif // OPTION
100
101#ifdef OPTTABLE_ARG_INIT
102//////////
103// Option Values
104
105
106#endif // OPTTABLE_ARG_INIT
deps/lld/.arcconfig+1-1
...@@ -1,4 +1,4 @@...@@ -1,4 +1,4 @@
1{1{
2 "project_id" : "lld",2 "repository.callsign" : "LLD",
3 "conduit_uri" : "https://reviews.llvm.org/"3 "conduit_uri" : "https://reviews.llvm.org/"
4}4}
deps/lld/CMakeLists.txt+5-3
...@@ -160,8 +160,8 @@ endif ()...@@ -160,8 +160,8 @@ endif ()
160160
161# Configure the Version.inc file.161# Configure the Version.inc file.
162configure_file(162configure_file(
163 ${CMAKE_CURRENT_SOURCE_DIR}/include/lld/Config/Version.inc.in163 ${CMAKE_CURRENT_SOURCE_DIR}/include/lld/Common/Version.inc.in
164 ${CMAKE_CURRENT_BINARY_DIR}/include/lld/Config/Version.inc)164 ${CMAKE_CURRENT_BINARY_DIR}/include/lld/Common/Version.inc)
165165
166166
167if (CMAKE_SOURCE_DIR STREQUAL CMAKE_BINARY_DIR)167if (CMAKE_SOURCE_DIR STREQUAL CMAKE_BINARY_DIR)
...@@ -210,6 +210,7 @@ if (NOT LLVM_INSTALL_TOOLCHAIN_ONLY)...@@ -210,6 +210,7 @@ if (NOT LLVM_INSTALL_TOOLCHAIN_ONLY)
210 )210 )
211endif()211endif()
212212
213add_subdirectory(Common)
213add_subdirectory(lib)214add_subdirectory(lib)
214add_subdirectory(tools/lld)215add_subdirectory(tools/lld)
215216
...@@ -221,4 +222,5 @@ endif()...@@ -221,4 +222,5 @@ endif()
221add_subdirectory(docs)222add_subdirectory(docs)
222add_subdirectory(COFF)223add_subdirectory(COFF)
223add_subdirectory(ELF)224add_subdirectory(ELF)
224225add_subdirectory(MinGW)
226add_subdirectory(wasm)
deps/lld/CODE_OWNERS.TXT+3
...@@ -17,3 +17,6 @@ N: Lang Hames, Nick Kledzik...@@ -17,3 +17,6 @@ N: Lang Hames, Nick Kledzik
17E: lhames@gmail.com, kledzik@apple.com17E: lhames@gmail.com, kledzik@apple.com
18D: Mach-O backend18D: Mach-O backend
1919
20N: Sam Clegg
21E: sbc@chromium.org
22D: WebAssembly backend (wasm/*)
deps/lld/COFF/CMakeLists.txt+5-7
...@@ -11,12 +11,12 @@ add_lld_library(lldCOFF...@@ -11,12 +11,12 @@ add_lld_library(lldCOFF
11 DLL.cpp11 DLL.cpp
12 Driver.cpp12 Driver.cpp
13 DriverUtils.cpp13 DriverUtils.cpp
14 Error.cpp
15 ICF.cpp14 ICF.cpp
16 InputFiles.cpp15 InputFiles.cpp
17 LTO.cpp16 LTO.cpp
18 MapFile.cpp17 MapFile.cpp
19 MarkLive.cpp18 MarkLive.cpp
19 MinGW.cpp
20 PDB.cpp20 PDB.cpp
21 Strings.cpp21 Strings.cpp
22 SymbolTable.cpp22 SymbolTable.cpp
...@@ -26,22 +26,20 @@ add_lld_library(lldCOFF...@@ -26,22 +26,20 @@ add_lld_library(lldCOFF
26 LINK_COMPONENTS26 LINK_COMPONENTS
27 ${LLVM_TARGETS_TO_BUILD}27 ${LLVM_TARGETS_TO_BUILD}
28 BinaryFormat28 BinaryFormat
29 BitReader
30 Core29 Core
31 DebugInfoCodeView30 DebugInfoCodeView
32 DebugInfoMSF31 DebugInfoMSF
33 DebugInfoPDB32 DebugInfoPDB
34 LTO
35 LibDriver33 LibDriver
36 Object34 LTO
37 MC35 MC
38 MCDisassembler36 Object
39 Target
40 Option37 Option
41 Support38 Support
39 WindowsManifest
4240
43 LINK_LIBS41 LINK_LIBS
44 lldCore42 lldCommon
45 ${LLVM_PTHREAD_LIB}43 ${LLVM_PTHREAD_LIB}
4644
47 DEPENDS45 DEPENDS
deps/lld/COFF/Chunks.cpp+67-32
...@@ -8,10 +8,10 @@...@@ -8,10 +8,10 @@
8//===----------------------------------------------------------------------===//8//===----------------------------------------------------------------------===//
99
10#include "Chunks.h"10#include "Chunks.h"
11#include "Error.h"
12#include "InputFiles.h"11#include "InputFiles.h"
13#include "Symbols.h"12#include "Symbols.h"
14#include "Writer.h"13#include "Writer.h"
14#include "lld/Common/ErrorHandler.h"
15#include "llvm/ADT/Twine.h"15#include "llvm/ADT/Twine.h"
16#include "llvm/BinaryFormat/COFF.h"16#include "llvm/BinaryFormat/COFF.h"
17#include "llvm/Object/COFF.h"17#include "llvm/Object/COFF.h"
...@@ -29,17 +29,14 @@ using llvm::support::ulittle32_t;...@@ -29,17 +29,14 @@ using llvm::support::ulittle32_t;
29namespace lld {29namespace lld {
30namespace coff {30namespace coff {
3131
32SectionChunk::SectionChunk(ObjectFile *F, const coff_section *H)32SectionChunk::SectionChunk(ObjFile *F, const coff_section *H)
33 : Chunk(SectionKind), Repl(this), Header(H), File(F),33 : Chunk(SectionKind), Repl(this), Header(H), File(F),
34 Relocs(File->getCOFFObj()->getRelocations(Header)),34 Relocs(File->getCOFFObj()->getRelocations(Header)),
35 NumRelocs(std::distance(Relocs.begin(), Relocs.end())) {35 NumRelocs(std::distance(Relocs.begin(), Relocs.end())) {
36 // Initialize SectionName.36 // Initialize SectionName.
37 File->getCOFFObj()->getSectionName(Header, SectionName);37 File->getCOFFObj()->getSectionName(Header, SectionName);
3838
39 Align = Header->getAlignment();39 Alignment = Header->getAlignment();
40
41 // Chunks may be discarded during comdat merging.
42 Discarded = false;
4340
44 // If linker GC is disabled, every chunk starts out alive. If linker GC is41 // If linker GC is disabled, every chunk starts out alive. If linker GC is
45 // enabled, treat non-comdat sections as roots. Generally optimized object42 // enabled, treat non-comdat sections as roots. Generally optimized object
...@@ -62,7 +59,10 @@ static void applySecRel(const SectionChunk *Sec, uint8_t *Off,...@@ -62,7 +59,10 @@ static void applySecRel(const SectionChunk *Sec, uint8_t *Off,
62 fatal("SECREL relocation cannot be applied to absolute symbols");59 fatal("SECREL relocation cannot be applied to absolute symbols");
63 }60 }
64 uint64_t SecRel = S - OS->getRVA();61 uint64_t SecRel = S - OS->getRVA();
65 assert(SecRel < INT32_MAX && "overflow in SECREL relocation");62 if (SecRel > UINT32_MAX) {
63 error("overflow in SECREL relocation in section: " + Sec->getSectionName());
64 return;
65 }
66 add32(Off, SecRel);66 add32(Off, SecRel);
67}67}
6868
...@@ -119,7 +119,7 @@ static uint16_t readMOV(uint8_t *Off) {...@@ -119,7 +119,7 @@ static uint16_t readMOV(uint8_t *Off) {
119 return Imm;119 return Imm;
120}120}
121121
122static void applyMOV32T(uint8_t *Off, uint32_t V) {122void applyMOV32T(uint8_t *Off, uint32_t V) {
123 uint16_t ImmW = readMOV(Off); // read MOVW operand123 uint16_t ImmW = readMOV(Off); // read MOVW operand
124 uint16_t ImmT = readMOV(Off + 4); // read MOVT operand124 uint16_t ImmT = readMOV(Off + 4); // read MOVT operand
125 uint32_t Imm = ImmW | (ImmT << 16);125 uint32_t Imm = ImmW | (ImmT << 16);
...@@ -129,6 +129,8 @@ static void applyMOV32T(uint8_t *Off, uint32_t V) {...@@ -129,6 +129,8 @@ static void applyMOV32T(uint8_t *Off, uint32_t V) {
129}129}
130130
131static void applyBranch20T(uint8_t *Off, int32_t V) {131static void applyBranch20T(uint8_t *Off, int32_t V) {
132 if (!isInt<21>(V))
133 fatal("relocation out of range");
132 uint32_t S = V < 0 ? 1 : 0;134 uint32_t S = V < 0 ? 1 : 0;
133 uint32_t J1 = (V >> 19) & 1;135 uint32_t J1 = (V >> 19) & 1;
134 uint32_t J2 = (V >> 18) & 1;136 uint32_t J2 = (V >> 18) & 1;
...@@ -136,7 +138,7 @@ static void applyBranch20T(uint8_t *Off, int32_t V) {...@@ -136,7 +138,7 @@ static void applyBranch20T(uint8_t *Off, int32_t V) {
136 or16(Off + 2, (J1 << 13) | (J2 << 11) | ((V >> 1) & 0x7ff));138 or16(Off + 2, (J1 << 13) | (J2 << 11) | ((V >> 1) & 0x7ff));
137}139}
138140
139static void applyBranch24T(uint8_t *Off, int32_t V) {141void applyBranch24T(uint8_t *Off, int32_t V) {
140 if (!isInt<25>(V))142 if (!isInt<25>(V))
141 fatal("relocation out of range");143 fatal("relocation out of range");
142 uint32_t S = V < 0 ? 1 : 0;144 uint32_t S = V < 0 ? 1 : 0;
...@@ -167,36 +169,61 @@ void SectionChunk::applyRelARM(uint8_t *Off, uint16_t Type, OutputSection *OS,...@@ -167,36 +169,61 @@ void SectionChunk::applyRelARM(uint8_t *Off, uint16_t Type, OutputSection *OS,
167 }169 }
168}170}
169171
170static void applyArm64Addr(uint8_t *Off, uint64_t Imm) {172// Interpret the existing immediate value as a byte offset to the
173// target symbol, then update the instruction with the immediate as
174// the page offset from the current instruction to the target.
175static void applyArm64Addr(uint8_t *Off, uint64_t S, uint64_t P) {
176 uint32_t Orig = read32le(Off);
177 uint64_t Imm = ((Orig >> 29) & 0x3) | ((Orig >> 3) & 0x1FFFFC);
178 S += Imm;
179 Imm = (S >> 12) - (P >> 12);
171 uint32_t ImmLo = (Imm & 0x3) << 29;180 uint32_t ImmLo = (Imm & 0x3) << 29;
172 uint32_t ImmHi = (Imm & 0x1FFFFC) << 3;181 uint32_t ImmHi = (Imm & 0x1FFFFC) << 3;
173 uint64_t Mask = (0x3 << 29) | (0x1FFFFC << 3);182 uint64_t Mask = (0x3 << 29) | (0x1FFFFC << 3);
174 write32le(Off, (read32le(Off) & ~Mask) | ImmLo | ImmHi);183 write32le(Off, (Orig & ~Mask) | ImmLo | ImmHi);
175}184}
176185
177// Update the immediate field in a AARCH64 ldr, str, and add instruction.186// Update the immediate field in a AARCH64 ldr, str, and add instruction.
178static void applyArm64Imm(uint8_t *Off, uint64_t Imm) {187// Optionally limit the range of the written immediate by one or more bits
188// (RangeLimit).
189static void applyArm64Imm(uint8_t *Off, uint64_t Imm, uint32_t RangeLimit) {
179 uint32_t Orig = read32le(Off);190 uint32_t Orig = read32le(Off);
180 Imm += (Orig >> 10) & 0xFFF;191 Imm += (Orig >> 10) & 0xFFF;
181 Orig &= ~(0xFFF << 10);192 Orig &= ~(0xFFF << 10);
182 write32le(Off, Orig | ((Imm & 0xFFF) << 10));193 write32le(Off, Orig | ((Imm & (0xFFF >> RangeLimit)) << 10));
183}194}
184195
196// Add the 12 bit page offset to the existing immediate.
197// Ldr/str instructions store the opcode immediate scaled
198// by the load/store size (giving a larger range for larger
199// loads/stores). The immediate is always (both before and after
200// fixing up the relocation) stored scaled similarly.
201// Even if larger loads/stores have a larger range, limit the
202// effective offset to 12 bit, since it is intended to be a
203// page offset.
185static void applyArm64Ldr(uint8_t *Off, uint64_t Imm) {204static void applyArm64Ldr(uint8_t *Off, uint64_t Imm) {
186 int Size = read32le(Off) >> 30;205 uint32_t Orig = read32le(Off);
187 Imm >>= Size;206 uint32_t Size = Orig >> 30;
188 applyArm64Imm(Off, Imm);207 // 0x04000000 indicates SIMD/FP registers
208 // 0x00800000 indicates 128 bit
209 if ((Orig & 0x4800000) == 0x4800000)
210 Size += 4;
211 if ((Imm & ((1 << Size) - 1)) != 0)
212 fatal("misaligned ldr/str offset");
213 applyArm64Imm(Off, Imm >> Size, Size);
189}214}
190215
191void SectionChunk::applyRelARM64(uint8_t *Off, uint16_t Type, OutputSection *OS,216void SectionChunk::applyRelARM64(uint8_t *Off, uint16_t Type, OutputSection *OS,
192 uint64_t S, uint64_t P) const {217 uint64_t S, uint64_t P) const {
193 switch (Type) {218 switch (Type) {
194 case IMAGE_REL_ARM64_PAGEBASE_REL21: applyArm64Addr(Off, (S >> 12) - (P >> 12)); break;219 case IMAGE_REL_ARM64_PAGEBASE_REL21: applyArm64Addr(Off, S, P); break;
195 case IMAGE_REL_ARM64_PAGEOFFSET_12A: applyArm64Imm(Off, S & 0xfff); break;220 case IMAGE_REL_ARM64_PAGEOFFSET_12A: applyArm64Imm(Off, S & 0xfff, 0); break;
196 case IMAGE_REL_ARM64_PAGEOFFSET_12L: applyArm64Ldr(Off, S & 0xfff); break;221 case IMAGE_REL_ARM64_PAGEOFFSET_12L: applyArm64Ldr(Off, S & 0xfff); break;
197 case IMAGE_REL_ARM64_BRANCH26: or32(Off, ((S - P) & 0x0FFFFFFC) >> 2); break;222 case IMAGE_REL_ARM64_BRANCH26: or32(Off, ((S - P) & 0x0FFFFFFC) >> 2); break;
198 case IMAGE_REL_ARM64_ADDR32: add32(Off, S + Config->ImageBase); break;223 case IMAGE_REL_ARM64_ADDR32: add32(Off, S + Config->ImageBase); break;
224 case IMAGE_REL_ARM64_ADDR32NB: add32(Off, S); break;
199 case IMAGE_REL_ARM64_ADDR64: add64(Off, S + Config->ImageBase); break;225 case IMAGE_REL_ARM64_ADDR64: add64(Off, S + Config->ImageBase); break;
226 case IMAGE_REL_ARM64_SECREL: applySecRel(this, Off, OS, S); break;
200 default:227 default:
201 fatal("unsupported relocation type 0x" + Twine::utohexstr(Type));228 fatal("unsupported relocation type 0x" + Twine::utohexstr(Type));
202 }229 }
...@@ -224,8 +251,19 @@ void SectionChunk::writeTo(uint8_t *Buf) const {...@@ -224,8 +251,19 @@ void SectionChunk::writeTo(uint8_t *Buf) const {
224 // Get the output section of the symbol for this relocation. The output251 // Get the output section of the symbol for this relocation. The output
225 // section is needed to compute SECREL and SECTION relocations used in debug252 // section is needed to compute SECREL and SECTION relocations used in debug
226 // info.253 // info.
227 SymbolBody *Body = File->getSymbolBody(Rel.SymbolTableIndex);254 auto *Sym =
228 Defined *Sym = cast<Defined>(Body);255 dyn_cast_or_null<Defined>(File->getSymbol(Rel.SymbolTableIndex));
256 if (!Sym) {
257 if (isCodeView() || isDWARF())
258 continue;
259 // Symbols in early discarded sections are represented using null pointers,
260 // so we need to retrieve the name from the object file.
261 COFFSymbolRef Sym =
262 check(File->getCOFFObj()->getSymbol(Rel.SymbolTableIndex));
263 StringRef Name;
264 File->getCOFFObj()->getSymbolName(Sym, Name);
265 fatal("relocation against symbol in discarded section: " + Name);
266 }
229 Chunk *C = Sym->getChunk();267 Chunk *C = Sym->getChunk();
230 OutputSection *OS = C ? C->getOutputSection() : nullptr;268 OutputSection *OS = C ? C->getOutputSection() : nullptr;
231269
...@@ -301,8 +339,8 @@ void SectionChunk::getBaserels(std::vector<Baserel> *Res) {...@@ -301,8 +339,8 @@ void SectionChunk::getBaserels(std::vector<Baserel> *Res) {
301 uint8_t Ty = getBaserelType(Rel);339 uint8_t Ty = getBaserelType(Rel);
302 if (Ty == IMAGE_REL_BASED_ABSOLUTE)340 if (Ty == IMAGE_REL_BASED_ABSOLUTE)
303 continue;341 continue;
304 SymbolBody *Body = File->getSymbolBody(Rel.SymbolTableIndex);342 Symbol *Target = File->getSymbol(Rel.SymbolTableIndex);
305 if (isa<DefinedAbsolute>(Body))343 if (!Target || isa<DefinedAbsolute>(Target))
306 continue;344 continue;
307 Res->emplace_back(RVA + Rel.VirtualAddress, Ty);345 Res->emplace_back(RVA + Rel.VirtualAddress, Ty);
308 }346 }
...@@ -323,12 +361,8 @@ bool SectionChunk::isCOMDAT() const {...@@ -323,12 +361,8 @@ bool SectionChunk::isCOMDAT() const {
323void SectionChunk::printDiscardedMessage() const {361void SectionChunk::printDiscardedMessage() const {
324 // Removed by dead-stripping. If it's removed by ICF, ICF already362 // Removed by dead-stripping. If it's removed by ICF, ICF already
325 // printed out the name, so don't repeat that here.363 // printed out the name, so don't repeat that here.
326 if (Sym && this == Repl) {364 if (Sym && this == Repl)
327 if (Discarded)365 message("Discarded " + Sym->getName());
328 message("Discarded comdat symbol " + Sym->getName());
329 else if (!Live)
330 message("Discarded " + Sym->getName());
331 }
332}366}
333367
334StringRef SectionChunk::getDebugName() {368StringRef SectionChunk::getDebugName() {
...@@ -351,7 +385,7 @@ void SectionChunk::replace(SectionChunk *Other) {...@@ -351,7 +385,7 @@ void SectionChunk::replace(SectionChunk *Other) {
351CommonChunk::CommonChunk(const COFFSymbolRef S) : Sym(S) {385CommonChunk::CommonChunk(const COFFSymbolRef S) : Sym(S) {
352 // Common symbols are aligned on natural boundaries up to 32 bytes.386 // Common symbols are aligned on natural boundaries up to 32 bytes.
353 // This is what MSVC link.exe does.387 // This is what MSVC link.exe does.
354 Align = std::min(uint64_t(32), PowerOf2Ceil(Sym.getValue()));388 Alignment = std::min(uint64_t(32), PowerOf2Ceil(Sym.getValue()));
355}389}
356390
357uint32_t CommonChunk::getPermissions() const {391uint32_t CommonChunk::getPermissions() const {
...@@ -366,7 +400,7 @@ void StringChunk::writeTo(uint8_t *Buf) const {...@@ -366,7 +400,7 @@ void StringChunk::writeTo(uint8_t *Buf) const {
366ImportThunkChunkX64::ImportThunkChunkX64(Defined *S) : ImpSymbol(S) {400ImportThunkChunkX64::ImportThunkChunkX64(Defined *S) : ImpSymbol(S) {
367 // Intel Optimization Manual says that all branch targets401 // Intel Optimization Manual says that all branch targets
368 // should be 16-byte aligned. MSVC linker does this too.402 // should be 16-byte aligned. MSVC linker does this too.
369 Align = 16;403 Alignment = 16;
370}404}
371405
372void ImportThunkChunkX64::writeTo(uint8_t *Buf) const {406void ImportThunkChunkX64::writeTo(uint8_t *Buf) const {
...@@ -397,10 +431,9 @@ void ImportThunkChunkARM::writeTo(uint8_t *Buf) const {...@@ -397,10 +431,9 @@ void ImportThunkChunkARM::writeTo(uint8_t *Buf) const {
397}431}
398432
399void ImportThunkChunkARM64::writeTo(uint8_t *Buf) const {433void ImportThunkChunkARM64::writeTo(uint8_t *Buf) const {
400 int64_t PageOff = (ImpSymbol->getRVA() >> 12) - (RVA >> 12);
401 int64_t Off = ImpSymbol->getRVA() & 0xfff;434 int64_t Off = ImpSymbol->getRVA() & 0xfff;
402 memcpy(Buf + OutputSectionOff, ImportThunkARM64, sizeof(ImportThunkARM64));435 memcpy(Buf + OutputSectionOff, ImportThunkARM64, sizeof(ImportThunkARM64));
403 applyArm64Addr(Buf + OutputSectionOff, PageOff);436 applyArm64Addr(Buf + OutputSectionOff, ImpSymbol->getRVA(), RVA);
404 applyArm64Ldr(Buf + OutputSectionOff + 4, Off);437 applyArm64Ldr(Buf + OutputSectionOff + 4, Off);
405}438}
406439
...@@ -488,8 +521,10 @@ void BaserelChunk::writeTo(uint8_t *Buf) const {...@@ -488,8 +521,10 @@ void BaserelChunk::writeTo(uint8_t *Buf) const {
488uint8_t Baserel::getDefaultType() {521uint8_t Baserel::getDefaultType() {
489 switch (Config->Machine) {522 switch (Config->Machine) {
490 case AMD64:523 case AMD64:
524 case ARM64:
491 return IMAGE_REL_BASED_DIR64;525 return IMAGE_REL_BASED_DIR64;
492 case I386:526 case I386:
527 case ARMNT:
493 return IMAGE_REL_BASED_HIGHLOW;528 return IMAGE_REL_BASED_HIGHLOW;
494 default:529 default:
495 llvm_unreachable("unknown machine type");530 llvm_unreachable("unknown machine type");
deps/lld/COFF/Chunks.h+28-38
...@@ -12,7 +12,7 @@...@@ -12,7 +12,7 @@
1212
13#include "Config.h"13#include "Config.h"
14#include "InputFiles.h"14#include "InputFiles.h"
15#include "lld/Core/LLVM.h"15#include "lld/Common/LLVM.h"
16#include "llvm/ADT/ArrayRef.h"16#include "llvm/ADT/ArrayRef.h"
17#include "llvm/ADT/iterator.h"17#include "llvm/ADT/iterator.h"
18#include "llvm/ADT/iterator_range.h"18#include "llvm/ADT/iterator_range.h"
...@@ -33,9 +33,9 @@ class Baserel;...@@ -33,9 +33,9 @@ class Baserel;
33class Defined;33class Defined;
34class DefinedImportData;34class DefinedImportData;
35class DefinedRegular;35class DefinedRegular;
36class ObjectFile;36class ObjFile;
37class OutputSection;37class OutputSection;
38class SymbolBody;38class Symbol;
3939
40// Mask for section types (code, data, bss, disacardable, etc.)40// Mask for section types (code, data, bss, disacardable, etc.)
41// and permissions (writable, readable or executable).41// and permissions (writable, readable or executable).
...@@ -62,7 +62,6 @@ public:...@@ -62,7 +62,6 @@ public:
6262
63 // The writer sets and uses the addresses.63 // The writer sets and uses the addresses.
64 uint64_t getRVA() const { return RVA; }64 uint64_t getRVA() const { return RVA; }
65 uint32_t getAlign() const { return Align; }
66 void setRVA(uint64_t V) { RVA = V; }65 void setRVA(uint64_t V) { RVA = V; }
6766
68 // Returns true if this has non-zero data. BSS chunks return67 // Returns true if this has non-zero data. BSS chunks return
...@@ -82,7 +81,7 @@ public:...@@ -82,7 +81,7 @@ public:
82 // An output section has pointers to chunks in the section, and each81 // An output section has pointers to chunks in the section, and each
83 // chunk has a back pointer to an output section.82 // chunk has a back pointer to an output section.
84 void setOutputSection(OutputSection *O) { Out = O; }83 void setOutputSection(OutputSection *O) { Out = O; }
85 OutputSection *getOutputSection() { return Out; }84 OutputSection *getOutputSection() const { return Out; }
8685
87 // Windows-specific.86 // Windows-specific.
88 // Collect all locations that contain absolute addresses for base relocations.87 // Collect all locations that contain absolute addresses for base relocations.
...@@ -92,23 +91,22 @@ public:...@@ -92,23 +91,22 @@ public:
92 // bytes, so this is used only for logging or debugging.91 // bytes, so this is used only for logging or debugging.
93 virtual StringRef getDebugName() { return ""; }92 virtual StringRef getDebugName() { return ""; }
9493
94 // The alignment of this chunk. The writer uses the value.
95 uint32_t Alignment = 1;
96
95protected:97protected:
96 Chunk(Kind K = OtherKind) : ChunkKind(K) {}98 Chunk(Kind K = OtherKind) : ChunkKind(K) {}
97 const Kind ChunkKind;99 const Kind ChunkKind;
98100
99 // The alignment of this chunk. The writer uses the value.
100 uint32_t Align = 1;
101
102 // The RVA of this chunk in the output. The writer sets a value.101 // The RVA of this chunk in the output. The writer sets a value.
103 uint64_t RVA = 0;102 uint64_t RVA = 0;
104103
104 // The output section for this chunk.
105 OutputSection *Out = nullptr;
106
105public:107public:
106 // The offset from beginning of the output section. The writer sets a value.108 // The offset from beginning of the output section. The writer sets a value.
107 uint64_t OutputSectionOff = 0;109 uint64_t OutputSectionOff = 0;
108
109protected:
110 // The output section for this chunk.
111 OutputSection *Out = nullptr;
112};110};
113111
114// A chunk corresponding a section of an input file.112// A chunk corresponding a section of an input file.
...@@ -119,23 +117,21 @@ class SectionChunk final : public Chunk {...@@ -119,23 +117,21 @@ class SectionChunk final : public Chunk {
119public:117public:
120 class symbol_iterator : public llvm::iterator_adaptor_base<118 class symbol_iterator : public llvm::iterator_adaptor_base<
121 symbol_iterator, const coff_relocation *,119 symbol_iterator, const coff_relocation *,
122 std::random_access_iterator_tag, SymbolBody *> {120 std::random_access_iterator_tag, Symbol *> {
123 friend SectionChunk;121 friend SectionChunk;
124122
125 ObjectFile *File;123 ObjFile *File;
126124
127 symbol_iterator(ObjectFile *File, const coff_relocation *I)125 symbol_iterator(ObjFile *File, const coff_relocation *I)
128 : symbol_iterator::iterator_adaptor_base(I), File(File) {}126 : symbol_iterator::iterator_adaptor_base(I), File(File) {}
129127
130 public:128 public:
131 symbol_iterator() = default;129 symbol_iterator() = default;
132130
133 SymbolBody *operator*() const {131 Symbol *operator*() const { return File->getSymbol(I->SymbolTableIndex); }
134 return File->getSymbolBody(I->SymbolTableIndex);
135 }
136 };132 };
137133
138 SectionChunk(ObjectFile *File, const coff_section *Header);134 SectionChunk(ObjFile *File, const coff_section *Header);
139 static bool classof(const Chunk *C) { return C->kind() == SectionKind; }135 static bool classof(const Chunk *C) { return C->kind() == SectionKind; }
140 size_t getSize() const override { return Header->SizeOfRawData; }136 size_t getSize() const override { return Header->SizeOfRawData; }
141 ArrayRef<uint8_t> getContents() const;137 ArrayRef<uint8_t> getContents() const;
...@@ -163,10 +159,9 @@ public:...@@ -163,10 +159,9 @@ public:
163 void addAssociative(SectionChunk *Child);159 void addAssociative(SectionChunk *Child);
164160
165 StringRef getDebugName() override;161 StringRef getDebugName() override;
166 void setSymbol(DefinedRegular *S) { if (!Sym) Sym = S; }
167162
168 // Returns true if the chunk was not dropped by GC or COMDAT deduplication.163 // Returns true if the chunk was not dropped by GC.
169 bool isLive() { return Live && !Discarded; }164 bool isLive() { return Live; }
170165
171 // Used by the garbage collector.166 // Used by the garbage collector.
172 void markLive() {167 void markLive() {
...@@ -175,21 +170,16 @@ public:...@@ -175,21 +170,16 @@ public:
175 Live = true;170 Live = true;
176 }171 }
177172
178 // Returns true if this chunk was dropped by COMDAT deduplication.
179 bool isDiscarded() const { return Discarded; }
180
181 // Used by the SymbolTable when discarding unused comdat sections. This is
182 // redundant when GC is enabled, as all comdat sections will start out dead.
183 void markDiscarded() { Discarded = true; }
184
185 // True if this is a codeview debug info chunk. These will not be laid out in173 // True if this is a codeview debug info chunk. These will not be laid out in
186 // the image. Instead they will end up in the PDB, if one is requested.174 // the image. Instead they will end up in the PDB, if one is requested.
187 bool isCodeView() const {175 bool isCodeView() const {
188 return SectionName == ".debug" || SectionName.startswith(".debug$");176 return SectionName == ".debug" || SectionName.startswith(".debug$");
189 }177 }
190178
191 // True if this is a DWARF debug info chunk.179 // True if this is a DWARF debug info or exception handling chunk.
192 bool isDWARF() const { return SectionName.startswith(".debug_"); }180 bool isDWARF() const {
181 return SectionName.startswith(".debug_") || SectionName == ".eh_frame";
182 }
193183
194 // Allow iteration over the bodies of this chunk's relocated symbols.184 // Allow iteration over the bodies of this chunk's relocated symbols.
195 llvm::iterator_range<symbol_iterator> symbols() const {185 llvm::iterator_range<symbol_iterator> symbols() const {
...@@ -213,7 +203,10 @@ public:...@@ -213,7 +203,10 @@ public:
213 const coff_section *Header;203 const coff_section *Header;
214204
215 // The file that this chunk was created from.205 // The file that this chunk was created from.
216 ObjectFile *File;206 ObjFile *File;
207
208 // The COMDAT leader symbol if this is a COMDAT chunk.
209 DefinedRegular *Sym = nullptr;
217210
218private:211private:
219 StringRef SectionName;212 StringRef SectionName;
...@@ -221,18 +214,12 @@ private:...@@ -221,18 +214,12 @@ private:
221 llvm::iterator_range<const coff_relocation *> Relocs;214 llvm::iterator_range<const coff_relocation *> Relocs;
222 size_t NumRelocs;215 size_t NumRelocs;
223216
224 // True if this chunk was discarded because it was a duplicate comdat section.
225 bool Discarded;
226
227 // Used by the garbage collector.217 // Used by the garbage collector.
228 bool Live;218 bool Live;
229219
230 // Used for ICF (Identical COMDAT Folding)220 // Used for ICF (Identical COMDAT Folding)
231 void replace(SectionChunk *Other);221 void replace(SectionChunk *Other);
232 uint32_t Class[2] = {0, 0};222 uint32_t Class[2] = {0, 0};
233
234 // Sym points to a section symbol if this is a COMDAT chunk.
235 DefinedRegular *Sym = nullptr;
236};223};
237224
238// A chunk for common symbols. Common chunks don't have actual data.225// A chunk for common symbols. Common chunks don't have actual data.
...@@ -369,6 +356,9 @@ public:...@@ -369,6 +356,9 @@ public:
369 uint8_t Type;356 uint8_t Type;
370};357};
371358
359void applyMOV32T(uint8_t *Off, uint32_t V);
360void applyBranch24T(uint8_t *Off, int32_t V);
361
372} // namespace coff362} // namespace coff
373} // namespace lld363} // namespace lld
374364
deps/lld/COFF/Config.h+19-9
...@@ -12,6 +12,7 @@...@@ -12,6 +12,7 @@
1212
13#include "llvm/ADT/StringRef.h"13#include "llvm/ADT/StringRef.h"
14#include "llvm/Object/COFF.h"14#include "llvm/Object/COFF.h"
15#include "llvm/Support/CachePruning.h"
15#include <cstdint>16#include <cstdint>
16#include <map>17#include <map>
17#include <set>18#include <set>
...@@ -26,8 +27,7 @@ using llvm::StringRef;...@@ -26,8 +27,7 @@ using llvm::StringRef;
26class DefinedAbsolute;27class DefinedAbsolute;
27class DefinedRelative;28class DefinedRelative;
28class StringChunk;29class StringChunk;
29struct Symbol;30class Symbol;
30class SymbolBody;
3131
32// Short aliases.32// Short aliases.
33static const auto AMD64 = llvm::COFF::IMAGE_FILE_MACHINE_AMD64;33static const auto AMD64 = llvm::COFF::IMAGE_FILE_MACHINE_AMD64;
...@@ -39,7 +39,7 @@ static const auto I386 = llvm::COFF::IMAGE_FILE_MACHINE_I386;...@@ -39,7 +39,7 @@ static const auto I386 = llvm::COFF::IMAGE_FILE_MACHINE_I386;
39struct Export {39struct Export {
40 StringRef Name; // N in /export:N or /export:E=N40 StringRef Name; // N in /export:N or /export:E=N
41 StringRef ExtName; // E in /export:E=N41 StringRef ExtName; // E in /export:E=N
42 SymbolBody *Sym = nullptr;42 Symbol *Sym = nullptr;
43 uint16_t Ordinal = 0;43 uint16_t Ordinal = 0;
44 bool Noname = false;44 bool Noname = false;
45 bool Data = false;45 bool Data = false;
...@@ -79,24 +79,23 @@ struct Configuration {...@@ -79,24 +79,23 @@ struct Configuration {
79 llvm::COFF::MachineTypes Machine = IMAGE_FILE_MACHINE_UNKNOWN;79 llvm::COFF::MachineTypes Machine = IMAGE_FILE_MACHINE_UNKNOWN;
80 bool Verbose = false;80 bool Verbose = false;
81 WindowsSubsystem Subsystem = llvm::COFF::IMAGE_SUBSYSTEM_UNKNOWN;81 WindowsSubsystem Subsystem = llvm::COFF::IMAGE_SUBSYSTEM_UNKNOWN;
82 SymbolBody *Entry = nullptr;82 Symbol *Entry = nullptr;
83 bool NoEntry = false;83 bool NoEntry = false;
84 std::string OutputFile;84 std::string OutputFile;
85 std::string ImportName;85 std::string ImportName;
86 bool ColorDiagnostics;
87 bool DoGC = true;86 bool DoGC = true;
88 bool DoICF = true;87 bool DoICF = true;
89 uint64_t ErrorLimit = 20;
90 bool Relocatable = true;88 bool Relocatable = true;
91 bool Force = false;89 bool Force = false;
92 bool Debug = false;90 bool Debug = false;
93 bool WriteSymtab = true;91 bool DebugDwarf = false;
92 bool DebugGHashes = false;
94 unsigned DebugTypes = static_cast<unsigned>(DebugType::None);93 unsigned DebugTypes = static_cast<unsigned>(DebugType::None);
95 llvm::SmallString<128> PDBPath;94 llvm::SmallString<128> PDBPath;
96 std::vector<llvm::StringRef> Argv;95 std::vector<llvm::StringRef> Argv;
9796
98 // Symbols in this set are considered as live by the garbage collector.97 // Symbols in this set are considered as live by the garbage collector.
99 std::set<SymbolBody *> GCRoot;98 std::vector<Symbol *> GCRoot;
10099
101 std::set<StringRef> NoDefaultLibs;100 std::set<StringRef> NoDefaultLibs;
102 bool NoDefaultLibAll = false;101 bool NoDefaultLibAll = false;
...@@ -107,7 +106,7 @@ struct Configuration {...@@ -107,7 +106,7 @@ struct Configuration {
107 std::vector<Export> Exports;106 std::vector<Export> Exports;
108 std::set<std::string> DelayLoads;107 std::set<std::string> DelayLoads;
109 std::map<std::string, int> DLLOrder;108 std::map<std::string, int> DLLOrder;
110 SymbolBody *DelayLoadHelper = nullptr;109 Symbol *DelayLoadHelper = nullptr;
111110
112 bool SaveTemps = false;111 bool SaveTemps = false;
113112
...@@ -123,6 +122,11 @@ struct Configuration {...@@ -123,6 +122,11 @@ struct Configuration {
123 // Used for /opt:lldltopartitions=N122 // Used for /opt:lldltopartitions=N
124 unsigned LTOPartitions = 1;123 unsigned LTOPartitions = 1;
125124
125 // Used for /opt:lldltocache=path
126 StringRef LTOCache;
127 // Used for /opt:lldltocachepolicy=policy
128 llvm::CachePruningPolicy LTOCachePolicy;
129
126 // Used for /merge:from=to (e.g. /merge:.rdata=.text)130 // Used for /merge:from=to (e.g. /merge:.rdata=.text)
127 std::map<StringRef, StringRef> Merge;131 std::map<StringRef, StringRef> Merge;
128132
...@@ -139,6 +143,9 @@ struct Configuration {...@@ -139,6 +143,9 @@ struct Configuration {
139 StringRef ManifestUIAccess = "'false'";143 StringRef ManifestUIAccess = "'false'";
140 StringRef ManifestFile;144 StringRef ManifestFile;
141145
146 // Used for /aligncomm.
147 std::map<std::string, int> AlignComm;
148
142 // Used for /failifmismatch.149 // Used for /failifmismatch.
143 std::map<StringRef, StringRef> MustMatch;150 std::map<StringRef, StringRef> MustMatch;
144151
...@@ -159,12 +166,15 @@ struct Configuration {...@@ -159,12 +166,15 @@ struct Configuration {
159 uint32_t MinorOSVersion = 0;166 uint32_t MinorOSVersion = 0;
160 bool CanExitEarly = false;167 bool CanExitEarly = false;
161 bool DynamicBase = true;168 bool DynamicBase = true;
169 bool AllowBind = true;
162 bool NxCompat = true;170 bool NxCompat = true;
163 bool AllowIsolation = true;171 bool AllowIsolation = true;
164 bool TerminalServerAware = true;172 bool TerminalServerAware = true;
165 bool LargeAddressAware = false;173 bool LargeAddressAware = false;
166 bool HighEntropyVA = false;174 bool HighEntropyVA = false;
167 bool AppContainer = false;175 bool AppContainer = false;
176 bool MinGW = false;
177 bool WarnLocallyDefinedImported = true;
168};178};
169179
170extern Configuration *Config;180extern Configuration *Config;
deps/lld/COFF/DLL.cpp+58-9
...@@ -61,7 +61,7 @@ private:...@@ -61,7 +61,7 @@ private:
61// A chunk for the import descriptor table.61// A chunk for the import descriptor table.
62class LookupChunk : public Chunk {62class LookupChunk : public Chunk {
63public:63public:
64 explicit LookupChunk(Chunk *C) : HintName(C) {}64 explicit LookupChunk(Chunk *C) : HintName(C) { Alignment = ptrSize(); }
65 size_t getSize() const override { return ptrSize(); }65 size_t getSize() const override { return ptrSize(); }
6666
67 void writeTo(uint8_t *Buf) const override {67 void writeTo(uint8_t *Buf) const override {
...@@ -76,7 +76,7 @@ public:...@@ -76,7 +76,7 @@ public:
76// See Microsoft PE/COFF spec 7.1. Import Header for details.76// See Microsoft PE/COFF spec 7.1. Import Header for details.
77class OrdinalOnlyChunk : public Chunk {77class OrdinalOnlyChunk : public Chunk {
78public:78public:
79 explicit OrdinalOnlyChunk(uint16_t V) : Ordinal(V) {}79 explicit OrdinalOnlyChunk(uint16_t V) : Ordinal(V) { Alignment = ptrSize(); }
80 size_t getSize() const override { return ptrSize(); }80 size_t getSize() const override { return ptrSize(); }
8181
82 void writeTo(uint8_t *Buf) const override {82 void writeTo(uint8_t *Buf) const override {
...@@ -117,7 +117,6 @@ public:...@@ -117,7 +117,6 @@ public:
117 explicit NullChunk(size_t N) : Size(N) {}117 explicit NullChunk(size_t N) : Size(N) {}
118 bool hasData() const override { return false; }118 bool hasData() const override { return false; }
119 size_t getSize() const override { return Size; }119 size_t getSize() const override { return Size; }
120 void setAlign(size_t N) { Align = N; }
121120
122private:121private:
123 size_t Size;122 size_t Size;
...@@ -215,6 +214,22 @@ static const uint8_t ThunkX86[] = {...@@ -215,6 +214,22 @@ static const uint8_t ThunkX86[] = {
215 0xFF, 0xE0, // jmp eax214 0xFF, 0xE0, // jmp eax
216};215};
217216
217static const uint8_t ThunkARM[] = {
218 0x40, 0xf2, 0x00, 0x0c, // mov.w ip, #0 __imp_<FUNCNAME>
219 0xc0, 0xf2, 0x00, 0x0c, // mov.t ip, #0 __imp_<FUNCNAME>
220 0x2d, 0xe9, 0x0f, 0x48, // push.w {r0, r1, r2, r3, r11, lr}
221 0x0d, 0xf2, 0x10, 0x0b, // addw r11, sp, #16
222 0x2d, 0xed, 0x10, 0x0b, // vpush {d0, d1, d2, d3, d4, d5, d6, d7}
223 0x61, 0x46, // mov r1, ip
224 0x40, 0xf2, 0x00, 0x00, // mov.w r0, #0 DELAY_IMPORT_DESCRIPTOR
225 0xc0, 0xf2, 0x00, 0x00, // mov.t r0, #0 DELAY_IMPORT_DESCRIPTOR
226 0x00, 0xf0, 0x00, 0xd0, // bl #0 __delayLoadHelper2
227 0x84, 0x46, // mov ip, r0
228 0xbd, 0xec, 0x10, 0x0b, // vpop {d0, d1, d2, d3, d4, d5, d6, d7}
229 0xbd, 0xe8, 0x0f, 0x48, // pop.w {r0, r1, r2, r3, r11, lr}
230 0x60, 0x47, // bx ip
231};
232
218// A chunk for the delay import thunk.233// A chunk for the delay import thunk.
219class ThunkChunkX64 : public Chunk {234class ThunkChunkX64 : public Chunk {
220public:235public:
...@@ -259,17 +274,45 @@ public:...@@ -259,17 +274,45 @@ public:
259 Defined *Helper = nullptr;274 Defined *Helper = nullptr;
260};275};
261276
277class ThunkChunkARM : public Chunk {
278public:
279 ThunkChunkARM(Defined *I, Chunk *D, Defined *H)
280 : Imp(I), Desc(D), Helper(H) {}
281
282 size_t getSize() const override { return sizeof(ThunkARM); }
283
284 void writeTo(uint8_t *Buf) const override {
285 memcpy(Buf + OutputSectionOff, ThunkARM, sizeof(ThunkARM));
286 applyMOV32T(Buf + OutputSectionOff + 0, Imp->getRVA() + Config->ImageBase);
287 applyMOV32T(Buf + OutputSectionOff + 22, Desc->getRVA() + Config->ImageBase);
288 applyBranch24T(Buf + OutputSectionOff + 30, Helper->getRVA() - RVA - 34);
289 }
290
291 void getBaserels(std::vector<Baserel> *Res) override {
292 Res->emplace_back(RVA + 0, IMAGE_REL_BASED_ARM_MOV32T);
293 Res->emplace_back(RVA + 22, IMAGE_REL_BASED_ARM_MOV32T);
294 }
295
296 Defined *Imp = nullptr;
297 Chunk *Desc = nullptr;
298 Defined *Helper = nullptr;
299};
300
262// A chunk for the import descriptor table.301// A chunk for the import descriptor table.
263class DelayAddressChunk : public Chunk {302class DelayAddressChunk : public Chunk {
264public:303public:
265 explicit DelayAddressChunk(Chunk *C) : Thunk(C) {}304 explicit DelayAddressChunk(Chunk *C) : Thunk(C) { Alignment = ptrSize(); }
266 size_t getSize() const override { return ptrSize(); }305 size_t getSize() const override { return ptrSize(); }
267306
268 void writeTo(uint8_t *Buf) const override {307 void writeTo(uint8_t *Buf) const override {
269 if (Config->is64()) {308 if (Config->is64()) {
270 write64le(Buf + OutputSectionOff, Thunk->getRVA() + Config->ImageBase);309 write64le(Buf + OutputSectionOff, Thunk->getRVA() + Config->ImageBase);
271 } else {310 } else {
272 write32le(Buf + OutputSectionOff, Thunk->getRVA() + Config->ImageBase);311 uint32_t Bit = 0;
312 // Pointer to thumb code must have the LSB set, so adjust it.
313 if (Config->Machine == ARMNT)
314 Bit = 1;
315 write32le(Buf + OutputSectionOff, (Thunk->getRVA() + Config->ImageBase) | Bit);
273 }316 }
274 }317 }
275318
...@@ -319,12 +362,16 @@ public:...@@ -319,12 +362,16 @@ public:
319 size_t getSize() const override { return Size * 4; }362 size_t getSize() const override { return Size * 4; }
320363
321 void writeTo(uint8_t *Buf) const override {364 void writeTo(uint8_t *Buf) const override {
322 for (Export &E : Config->Exports) {365 for (const Export &E : Config->Exports) {
323 uint8_t *P = Buf + OutputSectionOff + E.Ordinal * 4;366 uint8_t *P = Buf + OutputSectionOff + E.Ordinal * 4;
367 uint32_t Bit = 0;
368 // Pointer to thumb code must have the LSB set, so adjust it.
369 if (Config->Machine == ARMNT && !E.Data)
370 Bit = 1;
324 if (E.ForwardChunk) {371 if (E.ForwardChunk) {
325 write32le(P, E.ForwardChunk->getRVA());372 write32le(P, E.ForwardChunk->getRVA() | Bit);
326 } else {373 } else {
327 write32le(P, cast<Defined>(E.Sym)->getRVA());374 write32le(P, cast<Defined>(E.Sym)->getRVA() | Bit);
328 }375 }
329 }376 }
330 }377 }
...@@ -487,7 +534,7 @@ void DelayLoadContents::create(Defined *H) {...@@ -487,7 +534,7 @@ void DelayLoadContents::create(Defined *H) {
487 for (int I = 0, E = Syms.size(); I < E; ++I)534 for (int I = 0, E = Syms.size(); I < E; ++I)
488 Syms[I]->setLocation(Addresses[Base + I]);535 Syms[I]->setLocation(Addresses[Base + I]);
489 auto *MH = make<NullChunk>(8);536 auto *MH = make<NullChunk>(8);
490 MH->setAlign(8);537 MH->Alignment = 8;
491 ModuleHandles.push_back(MH);538 ModuleHandles.push_back(MH);
492539
493 // Fill the delay import table header fields.540 // Fill the delay import table header fields.
...@@ -506,6 +553,8 @@ Chunk *DelayLoadContents::newThunkChunk(DefinedImportData *S, Chunk *Dir) {...@@ -506,6 +553,8 @@ Chunk *DelayLoadContents::newThunkChunk(DefinedImportData *S, Chunk *Dir) {
506 return make<ThunkChunkX64>(S, Dir, Helper);553 return make<ThunkChunkX64>(S, Dir, Helper);
507 case I386:554 case I386:
508 return make<ThunkChunkX86>(S, Dir, Helper);555 return make<ThunkChunkX86>(S, Dir, Helper);
556 case ARMNT:
557 return make<ThunkChunkARM>(S, Dir, Helper);
509 default:558 default:
510 llvm_unreachable("unsupported machine type");559 llvm_unreachable("unsupported machine type");
511 }560 }
deps/lld/COFF/Driver.cpp+348-198
...@@ -9,13 +9,15 @@...@@ -9,13 +9,15 @@
99
10#include "Driver.h"10#include "Driver.h"
11#include "Config.h"11#include "Config.h"
12#include "Error.h"
13#include "InputFiles.h"12#include "InputFiles.h"
14#include "Memory.h"13#include "MinGW.h"
15#include "SymbolTable.h"14#include "SymbolTable.h"
16#include "Symbols.h"15#include "Symbols.h"
17#include "Writer.h"16#include "Writer.h"
18#include "lld/Driver/Driver.h"17#include "lld/Common/Driver.h"
18#include "lld/Common/ErrorHandler.h"
19#include "lld/Common/Memory.h"
20#include "lld/Common/Version.h"
19#include "llvm/ADT/Optional.h"21#include "llvm/ADT/Optional.h"
20#include "llvm/ADT/StringSwitch.h"22#include "llvm/ADT/StringSwitch.h"
21#include "llvm/BinaryFormat/Magic.h"23#include "llvm/BinaryFormat/Magic.h"
...@@ -48,27 +50,29 @@ namespace coff {...@@ -48,27 +50,29 @@ namespace coff {
48Configuration *Config;50Configuration *Config;
49LinkerDriver *Driver;51LinkerDriver *Driver;
5052
51BumpPtrAllocator BAlloc;
52StringSaver Saver{BAlloc};
53std::vector<SpecificAllocBase *> SpecificAllocBase::Instances;
54
55bool link(ArrayRef<const char *> Args, bool CanExitEarly, raw_ostream &Diag) {53bool link(ArrayRef<const char *> Args, bool CanExitEarly, raw_ostream &Diag) {
56 ErrorCount = 0;54 errorHandler().LogName = Args[0];
57 ErrorOS = &Diag;55 errorHandler().ErrorOS = &Diag;
56 errorHandler().ColorDiagnostics = Diag.has_colors();
57 errorHandler().ErrorLimitExceededMsg =
58 "too many errors emitted, stopping now"
59 " (use /ERRORLIMIT:0 to see all errors)";
60 errorHandler().ExitEarly = CanExitEarly;
58 Config = make<Configuration>();61 Config = make<Configuration>();
59 Config->Argv = {Args.begin(), Args.end()};62 Config->Argv = {Args.begin(), Args.end()};
60 Config->ColorDiagnostics =
61 (ErrorOS == &llvm::errs() && Process::StandardErrHasColors());
62 Config->CanExitEarly = CanExitEarly;63 Config->CanExitEarly = CanExitEarly;
64
65 Symtab = make<SymbolTable>();
66
63 Driver = make<LinkerDriver>();67 Driver = make<LinkerDriver>();
64 Driver->link(Args);68 Driver->link(Args);
6569
66 // Call exit() if we can to avoid calling destructors.70 // Call exit() if we can to avoid calling destructors.
67 if (CanExitEarly)71 if (CanExitEarly)
68 exitLld(ErrorCount ? 1 : 0);72 exitLld(errorCount() ? 1 : 0);
6973
70 freeArena();74 freeArena();
71 return !ErrorCount;75 return !errorCount();
72}76}
7377
74// Drop directory components and replace extension with ".exe" or ".dll".78// Drop directory components and replace extension with ".exe" or ".dll".
...@@ -114,30 +118,46 @@ MemoryBufferRef LinkerDriver::takeBuffer(std::unique_ptr<MemoryBuffer> MB) {...@@ -114,30 +118,46 @@ MemoryBufferRef LinkerDriver::takeBuffer(std::unique_ptr<MemoryBuffer> MB) {
114 return MBRef;118 return MBRef;
115}119}
116120
117void LinkerDriver::addBuffer(std::unique_ptr<MemoryBuffer> MB) {121void LinkerDriver::addBuffer(std::unique_ptr<MemoryBuffer> MB,
122 bool WholeArchive) {
118 MemoryBufferRef MBRef = takeBuffer(std::move(MB));123 MemoryBufferRef MBRef = takeBuffer(std::move(MB));
124 FilePaths.push_back(MBRef.getBufferIdentifier());
119125
120 // File type is detected by contents, not by file extension.126 // File type is detected by contents, not by file extension.
121 file_magic Magic = identify_magic(MBRef.getBuffer());127 switch (identify_magic(MBRef.getBuffer())) {
122 if (Magic == file_magic::windows_resource) {128 case file_magic::windows_resource:
123 Resources.push_back(MBRef);129 Resources.push_back(MBRef);
124 return;130 break;
125 }
126131
127 FilePaths.push_back(MBRef.getBufferIdentifier());132 case file_magic::archive:
128 if (Magic == file_magic::archive)133 if (WholeArchive) {
129 return Symtab.addFile(make<ArchiveFile>(MBRef));134 std::unique_ptr<Archive> File =
130 if (Magic == file_magic::bitcode)135 CHECK(Archive::create(MBRef),
131 return Symtab.addFile(make<BitcodeFile>(MBRef));136 MBRef.getBufferIdentifier() + ": failed to parse archive");
137
138 for (MemoryBufferRef M : getArchiveMembers(File.get()))
139 addArchiveBuffer(M, "<whole-archive>", MBRef.getBufferIdentifier());
140 return;
141 }
142 Symtab->addFile(make<ArchiveFile>(MBRef));
143 break;
144
145 case file_magic::bitcode:
146 Symtab->addFile(make<BitcodeFile>(MBRef));
147 break;
132148
133 if (Magic == file_magic::coff_cl_gl_object)149 case file_magic::coff_cl_gl_object:
134 error(MBRef.getBufferIdentifier() + ": is not a native COFF file. "150 error(MBRef.getBufferIdentifier() + ": is not a native COFF file. "
135 "Recompile without /GL");151 "Recompile without /GL");
136 else152 break;
137 Symtab.addFile(make<ObjectFile>(MBRef));153
154 default:
155 Symtab->addFile(make<ObjFile>(MBRef));
156 break;
157 }
138}158}
139159
140void LinkerDriver::enqueuePath(StringRef Path) {160void LinkerDriver::enqueuePath(StringRef Path, bool WholeArchive) {
141 auto Future =161 auto Future =
142 std::make_shared<std::future<MBErrPair>>(createFutureForFile(Path));162 std::make_shared<std::future<MBErrPair>>(createFutureForFile(Path));
143 std::string PathStr = Path;163 std::string PathStr = Path;
...@@ -146,7 +166,7 @@ void LinkerDriver::enqueuePath(StringRef Path) {...@@ -146,7 +166,7 @@ void LinkerDriver::enqueuePath(StringRef Path) {
146 if (MBOrErr.second)166 if (MBOrErr.second)
147 error("could not open " + PathStr + ": " + MBOrErr.second.message());167 error("could not open " + PathStr + ": " + MBOrErr.second.message());
148 else168 else
149 Driver->addBuffer(std::move(MBOrErr.first));169 Driver->addBuffer(std::move(MBOrErr.first), WholeArchive);
150 });170 });
151}171}
152172
...@@ -154,13 +174,13 @@ void LinkerDriver::addArchiveBuffer(MemoryBufferRef MB, StringRef SymName,...@@ -154,13 +174,13 @@ void LinkerDriver::addArchiveBuffer(MemoryBufferRef MB, StringRef SymName,
154 StringRef ParentName) {174 StringRef ParentName) {
155 file_magic Magic = identify_magic(MB.getBuffer());175 file_magic Magic = identify_magic(MB.getBuffer());
156 if (Magic == file_magic::coff_import_library) {176 if (Magic == file_magic::coff_import_library) {
157 Symtab.addFile(make<ImportFile>(MB));177 Symtab->addFile(make<ImportFile>(MB));
158 return;178 return;
159 }179 }
160180
161 InputFile *Obj;181 InputFile *Obj;
162 if (Magic == file_magic::coff_object) {182 if (Magic == file_magic::coff_object) {
163 Obj = make<ObjectFile>(MB);183 Obj = make<ObjFile>(MB);
164 } else if (Magic == file_magic::bitcode) {184 } else if (Magic == file_magic::bitcode) {
165 Obj = make<BitcodeFile>(MB);185 Obj = make<BitcodeFile>(MB);
166 } else {186 } else {
...@@ -169,7 +189,7 @@ void LinkerDriver::addArchiveBuffer(MemoryBufferRef MB, StringRef SymName,...@@ -169,7 +189,7 @@ void LinkerDriver::addArchiveBuffer(MemoryBufferRef MB, StringRef SymName,
169 }189 }
170190
171 Obj->ParentName = ParentName;191 Obj->ParentName = ParentName;
172 Symtab.addFile(Obj);192 Symtab->addFile(Obj);
173 log("Loaded " + toString(Obj) + " for " + SymName);193 log("Loaded " + toString(Obj) + " for " + SymName);
174}194}
175195
...@@ -177,7 +197,7 @@ void LinkerDriver::enqueueArchiveMember(const Archive::Child &C,...@@ -177,7 +197,7 @@ void LinkerDriver::enqueueArchiveMember(const Archive::Child &C,
177 StringRef SymName,197 StringRef SymName,
178 StringRef ParentName) {198 StringRef ParentName) {
179 if (!C.getParent()->isThin()) {199 if (!C.getParent()->isThin()) {
180 MemoryBufferRef MB = check(200 MemoryBufferRef MB = CHECK(
181 C.getMemoryBufferRef(),201 C.getMemoryBufferRef(),
182 "could not get the buffer for the member defining symbol " + SymName);202 "could not get the buffer for the member defining symbol " + SymName);
183 enqueueTask([=]() { Driver->addArchiveBuffer(MB, SymName, ParentName); });203 enqueueTask([=]() { Driver->addArchiveBuffer(MB, SymName, ParentName); });
...@@ -185,39 +205,61 @@ void LinkerDriver::enqueueArchiveMember(const Archive::Child &C,...@@ -185,39 +205,61 @@ void LinkerDriver::enqueueArchiveMember(const Archive::Child &C,
185 }205 }
186206
187 auto Future = std::make_shared<std::future<MBErrPair>>(createFutureForFile(207 auto Future = std::make_shared<std::future<MBErrPair>>(createFutureForFile(
188 check(C.getFullName(),208 CHECK(C.getFullName(),
189 "could not get the filename for the member defining symbol " +209 "could not get the filename for the member defining symbol " +
190 SymName)));210 SymName)));
191 enqueueTask([=]() {211 enqueueTask([=]() {
192 auto MBOrErr = Future->get();212 auto MBOrErr = Future->get();
193 if (MBOrErr.second)213 if (MBOrErr.second)
194 fatal(MBOrErr.second,214 fatal("could not get the buffer for the member defining " + SymName +
195 "could not get the buffer for the member defining " + SymName);215 ": " + MBOrErr.second.message());
196 Driver->addArchiveBuffer(takeBuffer(std::move(MBOrErr.first)), SymName,216 Driver->addArchiveBuffer(takeBuffer(std::move(MBOrErr.first)), SymName,
197 ParentName);217 ParentName);
198 });218 });
199}219}
200220
201static bool isDecorated(StringRef Sym) {221static bool isDecorated(StringRef Sym) {
202 return Sym.startswith("_") || Sym.startswith("@") || Sym.startswith("?");222 return Sym.startswith("@") || Sym.contains("@@") || Sym.startswith("?") ||
223 (!Config->MinGW && Sym.contains('@'));
203}224}
204225
205// Parses .drectve section contents and returns a list of files226// Parses .drectve section contents and returns a list of files
206// specified by /defaultlib.227// specified by /defaultlib.
207void LinkerDriver::parseDirectives(StringRef S) {228void LinkerDriver::parseDirectives(StringRef S) {
208 opt::InputArgList Args = Parser.parse(S);229 ArgParser Parser;
230 // .drectve is always tokenized using Windows shell rules.
231 opt::InputArgList Args = Parser.parseDirectives(S);
209232
210 for (auto *Arg : Args) {233 for (auto *Arg : Args) {
211 switch (Arg->getOption().getID()) {234 switch (Arg->getOption().getUnaliasedOption().getID()) {
235 case OPT_aligncomm:
236 parseAligncomm(Arg->getValue());
237 break;
212 case OPT_alternatename:238 case OPT_alternatename:
213 parseAlternateName(Arg->getValue());239 parseAlternateName(Arg->getValue());
214 break;240 break;
215 case OPT_defaultlib:241 case OPT_defaultlib:
216 if (Optional<StringRef> Path = findLib(Arg->getValue()))242 if (Optional<StringRef> Path = findLib(Arg->getValue()))
217 enqueuePath(*Path);243 enqueuePath(*Path, false);
244 break;
245 case OPT_entry:
246 Config->Entry = addUndefined(mangle(Arg->getValue()));
218 break;247 break;
219 case OPT_export: {248 case OPT_export: {
249 // If a common header file contains dllexported function
250 // declarations, many object files may end up with having the
251 // same /EXPORT options. In order to save cost of parsing them,
252 // we dedup them first.
253 if (!DirectivesExports.insert(Arg->getValue()).second)
254 break;
255
220 Export E = parseExport(Arg->getValue());256 Export E = parseExport(Arg->getValue());
257 if (Config->Machine == I386 && Config->MinGW) {
258 if (!isDecorated(E.Name))
259 E.Name = Saver.save("_" + E.Name);
260 if (!E.ExtName.empty() && !isDecorated(E.ExtName))
261 E.ExtName = Saver.save("_" + E.ExtName);
262 }
221 E.Directives = true;263 E.Directives = true;
222 Config->Exports.push_back(E);264 Config->Exports.push_back(E);
223 break;265 break;
...@@ -237,9 +279,14 @@ void LinkerDriver::parseDirectives(StringRef S) {...@@ -237,9 +279,14 @@ void LinkerDriver::parseDirectives(StringRef S) {
237 case OPT_section:279 case OPT_section:
238 parseSection(Arg->getValue());280 parseSection(Arg->getValue());
239 break;281 break;
282 case OPT_subsystem:
283 parseSubsystem(Arg->getValue(), &Config->Subsystem,
284 &Config->MajorOSVersion, &Config->MinorOSVersion);
285 break;
240 case OPT_editandcontinue:286 case OPT_editandcontinue:
241 case OPT_fastfail:287 case OPT_fastfail:
242 case OPT_guardsym:288 case OPT_guardsym:
289 case OPT_natvis:
243 case OPT_throwingnew:290 case OPT_throwingnew:
244 break;291 break;
245 default:292 default:
...@@ -254,7 +301,7 @@ StringRef LinkerDriver::doFindFile(StringRef Filename) {...@@ -254,7 +301,7 @@ StringRef LinkerDriver::doFindFile(StringRef Filename) {
254 bool HasPathSep = (Filename.find_first_of("/\\") != StringRef::npos);301 bool HasPathSep = (Filename.find_first_of("/\\") != StringRef::npos);
255 if (HasPathSep)302 if (HasPathSep)
256 return Filename;303 return Filename;
257 bool HasExt = (Filename.find('.') != StringRef::npos);304 bool HasExt = Filename.contains('.');
258 for (StringRef Dir : SearchPaths) {305 for (StringRef Dir : SearchPaths) {
259 SmallString<128> Path = Dir;306 SmallString<128> Path = Dir;
260 sys::path::append(Path, Filename);307 sys::path::append(Path, Filename);
...@@ -276,13 +323,15 @@ Optional<StringRef> LinkerDriver::findFile(StringRef Filename) {...@@ -276,13 +323,15 @@ Optional<StringRef> LinkerDriver::findFile(StringRef Filename) {
276 bool Seen = !VisitedFiles.insert(Path.lower()).second;323 bool Seen = !VisitedFiles.insert(Path.lower()).second;
277 if (Seen)324 if (Seen)
278 return None;325 return None;
326 if (Path.endswith_lower(".lib"))
327 VisitedLibs.insert(sys::path::filename(Path));
279 return Path;328 return Path;
280}329}
281330
282// Find library file from search path.331// Find library file from search path.
283StringRef LinkerDriver::doFindLib(StringRef Filename) {332StringRef LinkerDriver::doFindLib(StringRef Filename) {
284 // Add ".lib" to Filename if that has no file extension.333 // Add ".lib" to Filename if that has no file extension.
285 bool HasExt = (Filename.find('.') != StringRef::npos);334 bool HasExt = Filename.contains('.');
286 if (!HasExt)335 if (!HasExt)
287 Filename = Saver.save(Filename + ".lib");336 Filename = Saver.save(Filename + ".lib");
288 return doFindFile(Filename);337 return doFindFile(Filename);
...@@ -317,9 +366,12 @@ void LinkerDriver::addLibSearchPaths() {...@@ -317,9 +366,12 @@ void LinkerDriver::addLibSearchPaths() {
317 }366 }
318}367}
319368
320SymbolBody *LinkerDriver::addUndefined(StringRef Name) {369Symbol *LinkerDriver::addUndefined(StringRef Name) {
321 SymbolBody *B = Symtab.addUndefined(Name);370 Symbol *B = Symtab->addUndefined(Name);
322 Config->GCRoot.insert(B);371 if (!B->IsGCRoot) {
372 B->IsGCRoot = true;
373 Config->GCRoot.push_back(B);
374 }
323 return B;375 return B;
324}376}
325377
...@@ -341,8 +393,8 @@ StringRef LinkerDriver::findDefaultEntry() {...@@ -341,8 +393,8 @@ StringRef LinkerDriver::findDefaultEntry() {
341 {"wWinMain", "wWinMainCRTStartup"},393 {"wWinMain", "wWinMainCRTStartup"},
342 };394 };
343 for (auto E : Entries) {395 for (auto E : Entries) {
344 StringRef Entry = Symtab.findMangle(mangle(E[0]));396 StringRef Entry = Symtab->findMangle(mangle(E[0]));
345 if (!Entry.empty() && !isa<Undefined>(Symtab.find(Entry)->body()))397 if (!Entry.empty() && !isa<Undefined>(Symtab->find(Entry)))
346 return mangle(E[1]);398 return mangle(E[1]);
347 }399 }
348 return "";400 return "";
...@@ -351,9 +403,9 @@ StringRef LinkerDriver::findDefaultEntry() {...@@ -351,9 +403,9 @@ StringRef LinkerDriver::findDefaultEntry() {
351WindowsSubsystem LinkerDriver::inferSubsystem() {403WindowsSubsystem LinkerDriver::inferSubsystem() {
352 if (Config->DLL)404 if (Config->DLL)
353 return IMAGE_SUBSYSTEM_WINDOWS_GUI;405 return IMAGE_SUBSYSTEM_WINDOWS_GUI;
354 if (Symtab.findUnderscore("main") || Symtab.findUnderscore("wmain"))406 if (Symtab->findUnderscore("main") || Symtab->findUnderscore("wmain"))
355 return IMAGE_SUBSYSTEM_WINDOWS_CUI;407 return IMAGE_SUBSYSTEM_WINDOWS_CUI;
356 if (Symtab.findUnderscore("WinMain") || Symtab.findUnderscore("wWinMain"))408 if (Symtab->findUnderscore("WinMain") || Symtab->findUnderscore("wWinMain"))
357 return IMAGE_SUBSYSTEM_WINDOWS_GUI;409 return IMAGE_SUBSYSTEM_WINDOWS_GUI;
358 return IMAGE_SUBSYSTEM_UNKNOWN;410 return IMAGE_SUBSYSTEM_UNKNOWN;
359}411}
...@@ -376,9 +428,15 @@ static std::string createResponseFile(const opt::InputArgList &Args,...@@ -376,9 +428,15 @@ static std::string createResponseFile(const opt::InputArgList &Args,
376 case OPT_INPUT:428 case OPT_INPUT:
377 case OPT_defaultlib:429 case OPT_defaultlib:
378 case OPT_libpath:430 case OPT_libpath:
431 case OPT_manifest:
432 case OPT_manifest_colon:
433 case OPT_manifestdependency:
434 case OPT_manifestfile:
435 case OPT_manifestinput:
436 case OPT_manifestuac:
379 break;437 break;
380 default:438 default:
381 OS << toString(Arg) << "\n";439 OS << toString(*Arg) << "\n";
382 }440 }
383 }441 }
384442
...@@ -476,15 +534,17 @@ static void createImportLibrary(bool AsLib) {...@@ -476,15 +534,17 @@ static void createImportLibrary(bool AsLib) {
476 Exports.push_back(E2);534 Exports.push_back(E2);
477 }535 }
478536
479 writeImportLibrary(getImportName(AsLib), getImplibPath(), Exports,537 auto E = writeImportLibrary(getImportName(AsLib), getImplibPath(), Exports,
480 Config->Machine, false);538 Config->Machine, false);
539 handleAllErrors(std::move(E),
540 [&](ErrorInfoBase &EIB) { error(EIB.message()); });
481}541}
482542
483static void parseModuleDefs(StringRef Path) {543static void parseModuleDefs(StringRef Path) {
484 std::unique_ptr<MemoryBuffer> MB = check(544 std::unique_ptr<MemoryBuffer> MB = CHECK(
485 MemoryBuffer::getFile(Path, -1, false, true), "could not open " + Path);545 MemoryBuffer::getFile(Path, -1, false, true), "could not open " + Path);
486 COFFModuleDefinition M =546 COFFModuleDefinition M = check(parseCOFFModuleDefinition(
487 check(parseCOFFModuleDefinition(MB->getMemBufferRef(), Config->Machine));547 MB->getMemBufferRef(), Config->Machine, Config->MinGW));
488548
489 if (Config->OutputFile.empty())549 if (Config->OutputFile.empty())
490 Config->OutputFile = Saver.save(M.OutputFile);550 Config->OutputFile = Saver.save(M.OutputFile);
...@@ -522,31 +582,12 @@ static void parseModuleDefs(StringRef Path) {...@@ -522,31 +582,12 @@ static void parseModuleDefs(StringRef Path) {
522 }582 }
523}583}
524584
525std::vector<MemoryBufferRef> getArchiveMembers(Archive *File) {
526 std::vector<MemoryBufferRef> V;
527 Error Err = Error::success();
528 for (const ErrorOr<Archive::Child> &COrErr : File->children(Err)) {
529 Archive::Child C =
530 check(COrErr,
531 File->getFileName() + ": could not get the child of the archive");
532 MemoryBufferRef MBRef =
533 check(C.getMemoryBufferRef(),
534 File->getFileName() +
535 ": could not get the buffer for a child of the archive");
536 V.push_back(MBRef);
537 }
538 if (Err)
539 fatal(File->getFileName() +
540 ": Archive::children failed: " + toString(std::move(Err)));
541 return V;
542}
543
544// A helper function for filterBitcodeFiles.585// A helper function for filterBitcodeFiles.
545static bool needsRebuilding(MemoryBufferRef MB) {586static bool needsRebuilding(MemoryBufferRef MB) {
546 // The MSVC linker doesn't support thin archives, so if it's a thin587 // The MSVC linker doesn't support thin archives, so if it's a thin
547 // archive, we always need to rebuild it.588 // archive, we always need to rebuild it.
548 std::unique_ptr<Archive> File =589 std::unique_ptr<Archive> File =
549 check(Archive::create(MB), "Failed to read " + MB.getBufferIdentifier());590 CHECK(Archive::create(MB), "Failed to read " + MB.getBufferIdentifier());
550 if (File->isThin())591 if (File->isThin())
551 return true;592 return true;
552593
...@@ -567,7 +608,7 @@ static bool needsRebuilding(MemoryBufferRef MB) {...@@ -567,7 +608,7 @@ static bool needsRebuilding(MemoryBufferRef MB) {
567// its path is returned.608// its path is returned.
568static Optional<std::string>609static Optional<std::string>
569filterBitcodeFiles(StringRef Path, std::vector<std::string> &TemporaryFiles) {610filterBitcodeFiles(StringRef Path, std::vector<std::string> &TemporaryFiles) {
570 std::unique_ptr<MemoryBuffer> MB = check(611 std::unique_ptr<MemoryBuffer> MB = CHECK(
571 MemoryBuffer::getFile(Path, -1, false, true), "could not open " + Path);612 MemoryBuffer::getFile(Path, -1, false, true), "could not open " + Path);
572 MemoryBufferRef MBRef = MB->getMemBufferRef();613 MemoryBufferRef MBRef = MB->getMemBufferRef();
573 file_magic Magic = identify_magic(MBRef.getBuffer());614 file_magic Magic = identify_magic(MBRef.getBuffer());
...@@ -580,7 +621,7 @@ filterBitcodeFiles(StringRef Path, std::vector<std::string> &TemporaryFiles) {...@@ -580,7 +621,7 @@ filterBitcodeFiles(StringRef Path, std::vector<std::string> &TemporaryFiles) {
580 return Path.str();621 return Path.str();
581622
582 std::unique_ptr<Archive> File =623 std::unique_ptr<Archive> File =
583 check(Archive::create(MBRef),624 CHECK(Archive::create(MBRef),
584 MBRef.getBufferIdentifier() + ": failed to parse archive");625 MBRef.getBufferIdentifier() + ": failed to parse archive");
585626
586 std::vector<NewArchiveMember> New;627 std::vector<NewArchiveMember> New;
...@@ -596,16 +637,17 @@ filterBitcodeFiles(StringRef Path, std::vector<std::string> &TemporaryFiles) {...@@ -596,16 +637,17 @@ filterBitcodeFiles(StringRef Path, std::vector<std::string> &TemporaryFiles) {
596 SmallString<128> S;637 SmallString<128> S;
597 if (auto EC = sys::fs::createTemporaryFile("lld-" + sys::path::stem(Path),638 if (auto EC = sys::fs::createTemporaryFile("lld-" + sys::path::stem(Path),
598 ".lib", S))639 ".lib", S))
599 fatal(EC, "cannot create a temporary file");640 fatal("cannot create a temporary file: " + EC.message());
600 std::string Temp = S.str();641 std::string Temp = S.str();
601 TemporaryFiles.push_back(Temp);642 TemporaryFiles.push_back(Temp);
602643
603 std::pair<StringRef, std::error_code> Ret =644 Error E =
604 llvm::writeArchive(Temp, New, /*WriteSymtab=*/true, Archive::Kind::K_GNU,645 llvm::writeArchive(Temp, New, /*WriteSymtab=*/true, Archive::Kind::K_GNU,
605 /*Deterministics=*/true,646 /*Deterministics=*/true,
606 /*Thin=*/false);647 /*Thin=*/false);
607 if (Ret.second)648 handleAllErrors(std::move(E), [&](const ErrorInfoBase &EI) {
608 error("failed to create a new archive " + S.str() + ": " + Ret.first);649 error("failed to create a new archive " + S.str() + ": " + EI.message());
650 });
609 return Temp;651 return Temp;
610}652}
611653
...@@ -617,16 +659,16 @@ void LinkerDriver::invokeMSVC(opt::InputArgList &Args) {...@@ -617,16 +659,16 @@ void LinkerDriver::invokeMSVC(opt::InputArgList &Args) {
617 // Write out archive members that we used in symbol resolution and pass these659 // Write out archive members that we used in symbol resolution and pass these
618 // to MSVC before any archives, so that MSVC uses the same objects to satisfy660 // to MSVC before any archives, so that MSVC uses the same objects to satisfy
619 // references.661 // references.
620 for (const auto *O : Symtab.ObjectFiles) {662 for (ObjFile *Obj : ObjFile::Instances) {
621 if (O->ParentName.empty())663 if (Obj->ParentName.empty())
622 continue;664 continue;
623 SmallString<128> S;665 SmallString<128> S;
624 int Fd;666 int Fd;
625 if (auto EC = sys::fs::createTemporaryFile(667 if (auto EC = sys::fs::createTemporaryFile(
626 "lld-" + sys::path::filename(O->ParentName), ".obj", Fd, S))668 "lld-" + sys::path::filename(Obj->ParentName), ".obj", Fd, S))
627 fatal(EC, "cannot create a temporary file");669 fatal("cannot create a temporary file: " + EC.message());
628 raw_fd_ostream OS(Fd, /*shouldClose*/ true);670 raw_fd_ostream OS(Fd, /*shouldClose*/ true);
629 OS << O->MB.getBuffer();671 OS << Obj->MB.getBuffer();
630 Temps.push_back(S.str());672 Temps.push_back(S.str());
631 Rsp += quote(S) + "\n";673 Rsp += quote(S) + "\n";
632 }674 }
...@@ -642,7 +684,7 @@ void LinkerDriver::invokeMSVC(opt::InputArgList &Args) {...@@ -642,7 +684,7 @@ void LinkerDriver::invokeMSVC(opt::InputArgList &Args) {
642 break;684 break;
643 case OPT_opt:685 case OPT_opt:
644 if (!StringRef(Arg->getValue()).startswith("lld"))686 if (!StringRef(Arg->getValue()).startswith("lld"))
645 Rsp += toString(Arg) + " ";687 Rsp += toString(*Arg) + " ";
646 break;688 break;
647 case OPT_INPUT: {689 case OPT_INPUT: {
648 if (Optional<StringRef> Path = doFindFile(Arg->getValue())) {690 if (Optional<StringRef> Path = doFindFile(Arg->getValue())) {
...@@ -654,12 +696,12 @@ void LinkerDriver::invokeMSVC(opt::InputArgList &Args) {...@@ -654,12 +696,12 @@ void LinkerDriver::invokeMSVC(opt::InputArgList &Args) {
654 break;696 break;
655 }697 }
656 default:698 default:
657 Rsp += toString(Arg) + "\n";699 Rsp += toString(*Arg) + "\n";
658 }700 }
659 }701 }
660702
661 std::vector<StringRef> ObjectFiles = Symtab.compileBitcodeFiles();703 std::vector<StringRef> ObjFiles = Symtab->compileBitcodeFiles();
662 runMSVCLinker(Rsp, ObjectFiles);704 runMSVCLinker(Rsp, ObjFiles);
663705
664 for (StringRef Path : Temps)706 for (StringRef Path : Temps)
665 sys::fs::remove(Path);707 sys::fs::remove(Path);
...@@ -696,6 +738,7 @@ void LinkerDriver::link(ArrayRef<const char *> ArgsArr) {...@@ -696,6 +738,7 @@ void LinkerDriver::link(ArrayRef<const char *> ArgsArr) {
696 InitializeAllDisassemblers();738 InitializeAllDisassemblers();
697739
698 // Parse command line options.740 // Parse command line options.
741 ArgParser Parser;
699 opt::InputArgList Args = Parser.parseLINK(ArgsArr.slice(1));742 opt::InputArgList Args = Parser.parseLINK(ArgsArr.slice(1));
700743
701 // Parse and evaluate -mllvm options.744 // Parse and evaluate -mllvm options.
...@@ -711,7 +754,7 @@ void LinkerDriver::link(ArrayRef<const char *> ArgsArr) {...@@ -711,7 +754,7 @@ void LinkerDriver::link(ArrayRef<const char *> ArgsArr) {
711 StringRef S = Arg->getValue();754 StringRef S = Arg->getValue();
712 if (S.getAsInteger(10, N))755 if (S.getAsInteger(10, N))
713 error(Arg->getSpelling() + " number expected, but got " + S);756 error(Arg->getSpelling() + " number expected, but got " + S);
714 Config->ErrorLimit = N;757 errorHandler().ErrorLimit = N;
715 }758 }
716759
717 // Handle /help760 // Handle /help
...@@ -720,6 +763,18 @@ void LinkerDriver::link(ArrayRef<const char *> ArgsArr) {...@@ -720,6 +763,18 @@ void LinkerDriver::link(ArrayRef<const char *> ArgsArr) {
720 return;763 return;
721 }764 }
722765
766 // Handle --version, which is an lld extension. This option is a bit odd
767 // because it doesn't start with "/", but we deliberately chose "--" to
768 // avoid conflict with /version and for compatibility with clang-cl.
769 if (Args.hasArg(OPT_dash_dash_version)) {
770 outs() << getLLDVersion() << "\n";
771 return;
772 }
773
774 // Handle /lldmingw early, since it can potentially affect how other
775 // options are handled.
776 Config->MinGW = Args.hasArg(OPT_lldmingw);
777
723 if (auto *Arg = Args.getLastArg(OPT_linkrepro)) {778 if (auto *Arg = Args.getLastArg(OPT_linkrepro)) {
724 SmallString<64> Path = StringRef(Arg->getValue());779 SmallString<64> Path = StringRef(Arg->getValue());
725 sys::path::append(Path, "repro.tar");780 sys::path::append(Path, "repro.tar");
...@@ -735,8 +790,8 @@ void LinkerDriver::link(ArrayRef<const char *> ArgsArr) {...@@ -735,8 +790,8 @@ void LinkerDriver::link(ArrayRef<const char *> ArgsArr) {
735 }790 }
736 }791 }
737792
738 if (!Args.hasArgNoClaim(OPT_INPUT)) {793 if (!Args.hasArg(OPT_INPUT)) {
739 if (Args.hasArgNoClaim(OPT_deffile))794 if (Args.hasArg(OPT_deffile))
740 Config->NoEntry = true;795 Config->NoEntry = true;
741 else796 else
742 fatal("no input files");797 fatal("no input files");
...@@ -748,6 +803,13 @@ void LinkerDriver::link(ArrayRef<const char *> ArgsArr) {...@@ -748,6 +803,13 @@ void LinkerDriver::link(ArrayRef<const char *> ArgsArr) {
748 SearchPaths.push_back(Arg->getValue());803 SearchPaths.push_back(Arg->getValue());
749 addLibSearchPaths();804 addLibSearchPaths();
750805
806 // Handle /ignore
807 for (auto *Arg : Args.filtered(OPT_ignore)) {
808 if (StringRef(Arg->getValue()) == "4217")
809 Config->WarnLocallyDefinedImported = false;
810 // Other warning numbers are ignored.
811 }
812
751 // Handle /out813 // Handle /out
752 if (auto *Arg = Args.getLastArg(OPT_out))814 if (auto *Arg = Args.getLastArg(OPT_out))
753 Config->OutputFile = Arg->getValue();815 Config->OutputFile = Arg->getValue();
...@@ -755,23 +817,26 @@ void LinkerDriver::link(ArrayRef<const char *> ArgsArr) {...@@ -755,23 +817,26 @@ void LinkerDriver::link(ArrayRef<const char *> ArgsArr) {
755 // Handle /verbose817 // Handle /verbose
756 if (Args.hasArg(OPT_verbose))818 if (Args.hasArg(OPT_verbose))
757 Config->Verbose = true;819 Config->Verbose = true;
820 errorHandler().Verbose = Config->Verbose;
758821
759 // Handle /force or /force:unresolved822 // Handle /force or /force:unresolved
760 if (Args.hasArg(OPT_force) || Args.hasArg(OPT_force_unresolved))823 if (Args.hasArg(OPT_force, OPT_force_unresolved))
761 Config->Force = true;824 Config->Force = true;
762825
763 // Handle /debug826 // Handle /debug
764 if (Args.hasArg(OPT_debug)) {827 if (Args.hasArg(OPT_debug, OPT_debug_dwarf, OPT_debug_ghash)) {
765 Config->Debug = true;828 Config->Debug = true;
766 Config->DebugTypes =829 if (auto *Arg = Args.getLastArg(OPT_debugtype))
767 Args.hasArg(OPT_debugtype)830 Config->DebugTypes = parseDebugType(Arg->getValue());
768 ? parseDebugType(Args.getLastArg(OPT_debugtype)->getValue())831 else
769 : getDefaultDebugType(Args);832 Config->DebugTypes = getDefaultDebugType(Args);
770 }833 }
771834
772 // Create a dummy PDB file to satisfy build sytem rules.835 // Handle /pdb
773 if (auto *Arg = Args.getLastArg(OPT_pdb))836 bool ShouldCreatePDB = Args.hasArg(OPT_debug, OPT_debug_ghash);
774 Config->PDBPath = Arg->getValue();837 if (ShouldCreatePDB)
838 if (auto *Arg = Args.getLastArg(OPT_pdb))
839 Config->PDBPath = Arg->getValue();
775840
776 // Handle /noentry841 // Handle /noentry
777 if (Args.hasArg(OPT_noentry)) {842 if (Args.hasArg(OPT_noentry)) {
...@@ -787,9 +852,18 @@ void LinkerDriver::link(ArrayRef<const char *> ArgsArr) {...@@ -787,9 +852,18 @@ void LinkerDriver::link(ArrayRef<const char *> ArgsArr) {
787 Config->ManifestID = 2;852 Config->ManifestID = 2;
788 }853 }
789854
790 // Handle /fixed855 // Handle /dynamicbase and /fixed. We can't use hasFlag for /dynamicbase
791 if (Args.hasArg(OPT_fixed)) {856 // because we need to explicitly check whether that option or its inverse was
792 if (Args.hasArg(OPT_dynamicbase)) {857 // present in the argument list in order to handle /fixed.
858 auto *DynamicBaseArg = Args.getLastArg(OPT_dynamicbase, OPT_dynamicbase_no);
859 if (DynamicBaseArg &&
860 DynamicBaseArg->getOption().getID() == OPT_dynamicbase_no)
861 Config->DynamicBase = false;
862
863 bool Fixed = Args.hasFlag(OPT_fixed, OPT_fixed_no, false);
864 if (Fixed) {
865 if (DynamicBaseArg &&
866 DynamicBaseArg->getOption().getID() == OPT_dynamicbase) {
793 error("/fixed must not be specified with /dynamicbase");867 error("/fixed must not be specified with /dynamicbase");
794 } else {868 } else {
795 Config->Relocatable = false;869 Config->Relocatable = false;
...@@ -797,8 +871,9 @@ void LinkerDriver::link(ArrayRef<const char *> ArgsArr) {...@@ -797,8 +871,9 @@ void LinkerDriver::link(ArrayRef<const char *> ArgsArr) {
797 }871 }
798 }872 }
799873
800 if (Args.hasArg(OPT_appcontainer))874 // Handle /appcontainer
801 Config->AppContainer = true;875 Config->AppContainer =
876 Args.hasFlag(OPT_appcontainer, OPT_appcontainer_no, false);
802877
803 // Handle /machine878 // Handle /machine
804 if (auto *Arg = Args.getLastArg(OPT_machine))879 if (auto *Arg = Args.getLastArg(OPT_machine))
...@@ -846,54 +921,65 @@ void LinkerDriver::link(ArrayRef<const char *> ArgsArr) {...@@ -846,54 +921,65 @@ void LinkerDriver::link(ArrayRef<const char *> ArgsArr) {
846 if (auto *Arg = Args.getLastArg(OPT_implib))921 if (auto *Arg = Args.getLastArg(OPT_implib))
847 Config->Implib = Arg->getValue();922 Config->Implib = Arg->getValue();
848923
849 // Handle /opt924 // Handle /opt.
925 bool DoGC = !Args.hasArg(OPT_debug);
926 unsigned ICFLevel = 1; // 0: off, 1: limited, 2: on
850 for (auto *Arg : Args.filtered(OPT_opt)) {927 for (auto *Arg : Args.filtered(OPT_opt)) {
851 std::string Str = StringRef(Arg->getValue()).lower();928 std::string Str = StringRef(Arg->getValue()).lower();
852 SmallVector<StringRef, 1> Vec;929 SmallVector<StringRef, 1> Vec;
853 StringRef(Str).split(Vec, ',');930 StringRef(Str).split(Vec, ',');
854 for (StringRef S : Vec) {931 for (StringRef S : Vec) {
855 if (S == "noref") {932 if (S == "ref") {
856 Config->DoGC = false;933 DoGC = true;
857 Config->DoICF = false;934 } else if (S == "noref") {
858 continue;935 DoGC = false;
859 }936 } else if (S == "icf" || S.startswith("icf=")) {
860 if (S == "icf" || StringRef(S).startswith("icf=")) {937 ICFLevel = 2;
861 Config->DoICF = true;938 } else if (S == "noicf") {
862 continue;939 ICFLevel = 0;
863 }940 } else if (S.startswith("lldlto=")) {
864 if (S == "noicf") {941 StringRef OptLevel = S.substr(7);
865 Config->DoICF = false;
866 continue;
867 }
868 if (StringRef(S).startswith("lldlto=")) {
869 StringRef OptLevel = StringRef(S).substr(7);
870 if (OptLevel.getAsInteger(10, Config->LTOOptLevel) ||942 if (OptLevel.getAsInteger(10, Config->LTOOptLevel) ||
871 Config->LTOOptLevel > 3)943 Config->LTOOptLevel > 3)
872 error("/opt:lldlto: invalid optimization level: " + OptLevel);944 error("/opt:lldlto: invalid optimization level: " + OptLevel);
873 continue;945 } else if (S.startswith("lldltojobs=")) {
874 }946 StringRef Jobs = S.substr(11);
875 if (StringRef(S).startswith("lldltojobs=")) {
876 StringRef Jobs = StringRef(S).substr(11);
877 if (Jobs.getAsInteger(10, Config->LTOJobs) || Config->LTOJobs == 0)947 if (Jobs.getAsInteger(10, Config->LTOJobs) || Config->LTOJobs == 0)
878 error("/opt:lldltojobs: invalid job count: " + Jobs);948 error("/opt:lldltojobs: invalid job count: " + Jobs);
879 continue;949 } else if (S.startswith("lldltopartitions=")) {
880 }950 StringRef N = S.substr(17);
881 if (StringRef(S).startswith("lldltopartitions=")) {
882 StringRef N = StringRef(S).substr(17);
883 if (N.getAsInteger(10, Config->LTOPartitions) ||951 if (N.getAsInteger(10, Config->LTOPartitions) ||
884 Config->LTOPartitions == 0)952 Config->LTOPartitions == 0)
885 error("/opt:lldltopartitions: invalid partition count: " + N);953 error("/opt:lldltopartitions: invalid partition count: " + N);
886 continue;954 } else if (S != "lbr" && S != "nolbr")
887 }
888 if (S != "ref" && S != "lbr" && S != "nolbr")
889 error("/opt: unknown option: " + S);955 error("/opt: unknown option: " + S);
890 }956 }
891 }957 }
892958
959 // Limited ICF is enabled if GC is enabled and ICF was never mentioned
960 // explicitly.
961 // FIXME: LLD only implements "limited" ICF, i.e. it only merges identical
962 // code. If the user passes /OPT:ICF explicitly, LLD should merge identical
963 // comdat readonly data.
964 if (ICFLevel == 1 && !DoGC)
965 ICFLevel = 0;
966 Config->DoGC = DoGC;
967 Config->DoICF = ICFLevel > 0;
968
893 // Handle /lldsavetemps969 // Handle /lldsavetemps
894 if (Args.hasArg(OPT_lldsavetemps))970 if (Args.hasArg(OPT_lldsavetemps))
895 Config->SaveTemps = true;971 Config->SaveTemps = true;
896972
973 // Handle /lldltocache
974 if (auto *Arg = Args.getLastArg(OPT_lldltocache))
975 Config->LTOCache = Arg->getValue();
976
977 // Handle /lldsavecachepolicy
978 if (auto *Arg = Args.getLastArg(OPT_lldltocachepolicy))
979 Config->LTOCachePolicy = CHECK(
980 parseCachePruningPolicy(Arg->getValue()),
981 Twine("/lldltocachepolicy: invalid cache policy: ") + Arg->getValue());
982
897 // Handle /failifmismatch983 // Handle /failifmismatch
898 for (auto *Arg : Args.filtered(OPT_failifmismatch))984 for (auto *Arg : Args.filtered(OPT_failifmismatch))
899 checkFailIfMismatch(Arg->getValue());985 checkFailIfMismatch(Arg->getValue());
...@@ -906,6 +992,10 @@ void LinkerDriver::link(ArrayRef<const char *> ArgsArr) {...@@ -906,6 +992,10 @@ void LinkerDriver::link(ArrayRef<const char *> ArgsArr) {
906 for (auto *Arg : Args.filtered(OPT_section))992 for (auto *Arg : Args.filtered(OPT_section))
907 parseSection(Arg->getValue());993 parseSection(Arg->getValue());
908994
995 // Handle /aligncomm
996 for (auto *Arg : Args.filtered(OPT_aligncomm))
997 parseAligncomm(Arg->getValue());
998
909 // Handle /manifestdependency. This enables /manifest unless /manifest:no is999 // Handle /manifestdependency. This enables /manifest unless /manifest:no is
910 // also passed.1000 // also passed.
911 if (auto *Arg = Args.getLastArg(OPT_manifestdependency)) {1001 if (auto *Arg = Args.getLastArg(OPT_manifestdependency)) {
...@@ -939,35 +1029,42 @@ void LinkerDriver::link(ArrayRef<const char *> ArgsArr) {...@@ -939,35 +1029,42 @@ void LinkerDriver::link(ArrayRef<const char *> ArgsArr) {
939 }1029 }
9401030
941 // Handle miscellaneous boolean flags.1031 // Handle miscellaneous boolean flags.
942 if (Args.hasArg(OPT_allowisolation_no))1032 Config->AllowBind = Args.hasFlag(OPT_allowbind, OPT_allowbind_no, true);
943 Config->AllowIsolation = false;1033 Config->AllowIsolation =
944 if (Args.hasArg(OPT_dynamicbase_no))1034 Args.hasFlag(OPT_allowisolation, OPT_allowisolation_no, true);
945 Config->DynamicBase = false;1035 Config->NxCompat = Args.hasFlag(OPT_nxcompat, OPT_nxcompat_no, true);
946 if (Args.hasArg(OPT_nxcompat_no))1036 Config->TerminalServerAware = Args.hasFlag(OPT_tsaware, OPT_tsaware_no, true);
947 Config->NxCompat = false;1037 Config->DebugDwarf = Args.hasArg(OPT_debug_dwarf);
948 if (Args.hasArg(OPT_tsaware_no))1038 Config->DebugGHashes = Args.hasArg(OPT_debug_ghash);
949 Config->TerminalServerAware = false;
950 if (Args.hasArg(OPT_nosymtab))
951 Config->WriteSymtab = false;
9521039
953 Config->MapFile = getMapFile(Args);1040 Config->MapFile = getMapFile(Args);
9541041
955 if (ErrorCount)1042 if (errorCount())
956 return;1043 return;
9571044
1045 bool WholeArchiveFlag = Args.hasArg(OPT_wholearchive_flag);
958 // Create a list of input files. Files can be given as arguments1046 // Create a list of input files. Files can be given as arguments
959 // for /defaultlib option.1047 // for /defaultlib option.
960 std::vector<MemoryBufferRef> MBs;1048 std::vector<MemoryBufferRef> MBs;
961 for (auto *Arg : Args.filtered(OPT_INPUT))1049 for (auto *Arg : Args.filtered(OPT_INPUT, OPT_wholearchive_file)) {
962 if (Optional<StringRef> Path = findFile(Arg->getValue()))1050 switch (Arg->getOption().getID()) {
963 enqueuePath(*Path);1051 case OPT_INPUT:
1052 if (Optional<StringRef> Path = findFile(Arg->getValue()))
1053 enqueuePath(*Path, WholeArchiveFlag);
1054 break;
1055 case OPT_wholearchive_file:
1056 if (Optional<StringRef> Path = findFile(Arg->getValue()))
1057 enqueuePath(*Path, true);
1058 break;
1059 }
1060 }
964 for (auto *Arg : Args.filtered(OPT_defaultlib))1061 for (auto *Arg : Args.filtered(OPT_defaultlib))
965 if (Optional<StringRef> Path = findLib(Arg->getValue()))1062 if (Optional<StringRef> Path = findLib(Arg->getValue()))
966 enqueuePath(*Path);1063 enqueuePath(*Path, false);
9671064
968 // Windows specific -- Create a resource file containing a manifest file.1065 // Windows specific -- Create a resource file containing a manifest file.
969 if (Config->Manifest == Configuration::Embed)1066 if (Config->Manifest == Configuration::Embed)
970 addBuffer(createManifestRes());1067 addBuffer(createManifestRes(), false);
9711068
972 // Read all input files given via the command line.1069 // Read all input files given via the command line.
973 run();1070 run();
...@@ -983,7 +1080,7 @@ void LinkerDriver::link(ArrayRef<const char *> ArgsArr) {...@@ -983,7 +1080,7 @@ void LinkerDriver::link(ArrayRef<const char *> ArgsArr) {
983 // WindowsResource to convert resource files to a regular COFF file,1080 // WindowsResource to convert resource files to a regular COFF file,
984 // then link the resulting file normally.1081 // then link the resulting file normally.
985 if (!Resources.empty())1082 if (!Resources.empty())
986 addBuffer(convertResToCOFF(Resources));1083 Symtab->addFile(make<ObjFile>(convertResToCOFF(Resources)));
9871084
988 if (Tar)1085 if (Tar)
989 Tar->append("response.txt",1086 Tar->append("response.txt",
...@@ -991,28 +1088,36 @@ void LinkerDriver::link(ArrayRef<const char *> ArgsArr) {...@@ -991,28 +1088,36 @@ void LinkerDriver::link(ArrayRef<const char *> ArgsArr) {
991 ArrayRef<StringRef>(SearchPaths).slice(1)));1088 ArrayRef<StringRef>(SearchPaths).slice(1)));
9921089
993 // Handle /largeaddressaware1090 // Handle /largeaddressaware
994 if (Config->is64() || Args.hasArg(OPT_largeaddressaware))1091 Config->LargeAddressAware = Args.hasFlag(
995 Config->LargeAddressAware = true;1092 OPT_largeaddressaware, OPT_largeaddressaware_no, Config->is64());
9961093
997 // Handle /highentropyva1094 // Handle /highentropyva
998 if (Config->is64() && !Args.hasArg(OPT_highentropyva_no))1095 Config->HighEntropyVA =
999 Config->HighEntropyVA = true;1096 Config->is64() &&
1097 Args.hasFlag(OPT_highentropyva, OPT_highentropyva_no, true);
1098
1099 if (!Config->DynamicBase &&
1100 (Config->Machine == ARMNT || Config->Machine == ARM64))
1101 error("/dynamicbase:no is not compatible with " +
1102 machineToStr(Config->Machine));
10001103
1001 // Handle /entry and /dll1104 // Handle /entry and /dll
1002 if (auto *Arg = Args.getLastArg(OPT_entry)) {1105 if (auto *Arg = Args.getLastArg(OPT_entry)) {
1003 Config->Entry = addUndefined(mangle(Arg->getValue()));1106 Config->Entry = addUndefined(mangle(Arg->getValue()));
1004 } else if (Args.hasArg(OPT_dll) && !Config->NoEntry) {1107 } else if (!Config->Entry && !Config->NoEntry) {
1005 StringRef S = (Config->Machine == I386) ? "__DllMainCRTStartup@12"1108 if (Args.hasArg(OPT_dll)) {
1006 : "_DllMainCRTStartup";1109 StringRef S = (Config->Machine == I386) ? "__DllMainCRTStartup@12"
1007 Config->Entry = addUndefined(S);1110 : "_DllMainCRTStartup";
1008 } else if (!Config->NoEntry) {1111 Config->Entry = addUndefined(S);
1009 // Windows specific -- If entry point name is not given, we need to1112 } else {
1010 // infer that from user-defined entry name.1113 // Windows specific -- If entry point name is not given, we need to
1011 StringRef S = findDefaultEntry();1114 // infer that from user-defined entry name.
1012 if (S.empty())1115 StringRef S = findDefaultEntry();
1013 fatal("entry point must be defined");1116 if (S.empty())
1014 Config->Entry = addUndefined(S);1117 fatal("entry point must be defined");
1015 log("Entry name inferred: " + S);1118 Config->Entry = addUndefined(S);
1119 log("Entry name inferred: " + S);
1120 }
1016 }1121 }
10171122
1018 // Handle /export1123 // Handle /export
...@@ -1034,7 +1139,7 @@ void LinkerDriver::link(ArrayRef<const char *> ArgsArr) {...@@ -1034,7 +1139,7 @@ void LinkerDriver::link(ArrayRef<const char *> ArgsArr) {
1034 }1139 }
10351140
1036 // Handle generation of import library from a def file.1141 // Handle generation of import library from a def file.
1037 if (!Args.hasArgNoClaim(OPT_INPUT)) {1142 if (!Args.hasArg(OPT_INPUT)) {
1038 fixupExports();1143 fixupExports();
1039 createImportLibrary(/*AsLib=*/true);1144 createImportLibrary(/*AsLib=*/true);
1040 return;1145 return;
...@@ -1057,34 +1162,32 @@ void LinkerDriver::link(ArrayRef<const char *> ArgsArr) {...@@ -1057,34 +1162,32 @@ void LinkerDriver::link(ArrayRef<const char *> ArgsArr) {
1057 }1162 }
10581163
1059 // Put the PDB next to the image if no /pdb flag was passed.1164 // Put the PDB next to the image if no /pdb flag was passed.
1060 if (Config->Debug && Config->PDBPath.empty()) {1165 if (ShouldCreatePDB && Config->PDBPath.empty()) {
1061 Config->PDBPath = Config->OutputFile;1166 Config->PDBPath = Config->OutputFile;
1062 sys::path::replace_extension(Config->PDBPath, ".pdb");1167 sys::path::replace_extension(Config->PDBPath, ".pdb");
1063 }1168 }
10641169
1065 // Disable PDB generation if the user requested it.
1066 if (Args.hasArg(OPT_nopdb))
1067 Config->PDBPath = "";
1068
1069 // Set default image base if /base is not given.1170 // Set default image base if /base is not given.
1070 if (Config->ImageBase == uint64_t(-1))1171 if (Config->ImageBase == uint64_t(-1))
1071 Config->ImageBase = getDefaultImageBase();1172 Config->ImageBase = getDefaultImageBase();
10721173
1073 Symtab.addSynthetic(mangle("__ImageBase"), nullptr);1174 Symtab->addSynthetic(mangle("__ImageBase"), nullptr);
1074 if (Config->Machine == I386) {1175 if (Config->Machine == I386) {
1075 Symtab.addAbsolute("___safe_se_handler_table", 0);1176 Symtab->addAbsolute("___safe_se_handler_table", 0);
1076 Symtab.addAbsolute("___safe_se_handler_count", 0);1177 Symtab->addAbsolute("___safe_se_handler_count", 0);
1077 }1178 }
10781179
1079 // We do not support /guard:cf (control flow protection) yet.1180 // We do not support /guard:cf (control flow protection) yet.
1080 // Define CFG symbols anyway so that we can link MSVC 2015 CRT.1181 // Define CFG symbols anyway so that we can link MSVC 2015 CRT.
1081 Symtab.addAbsolute(mangle("__guard_fids_count"), 0);1182 Symtab->addAbsolute(mangle("__guard_fids_count"), 0);
1082 Symtab.addAbsolute(mangle("__guard_fids_table"), 0);1183 Symtab->addAbsolute(mangle("__guard_fids_table"), 0);
1083 Symtab.addAbsolute(mangle("__guard_flags"), 0x100);1184 Symtab->addAbsolute(mangle("__guard_flags"), 0x100);
1084 Symtab.addAbsolute(mangle("__guard_iat_count"), 0);1185 Symtab->addAbsolute(mangle("__guard_iat_count"), 0);
1085 Symtab.addAbsolute(mangle("__guard_iat_table"), 0);1186 Symtab->addAbsolute(mangle("__guard_iat_table"), 0);
1086 Symtab.addAbsolute(mangle("__guard_longjmp_count"), 0);1187 Symtab->addAbsolute(mangle("__guard_longjmp_count"), 0);
1087 Symtab.addAbsolute(mangle("__guard_longjmp_table"), 0);1188 Symtab->addAbsolute(mangle("__guard_longjmp_table"), 0);
1189 // Needed for MSVC 2017 15.5 CRT.
1190 Symtab->addAbsolute(mangle("__enclave_config"), 0);
10881191
1089 // This code may add new undefined symbols to the link, which may enqueue more1192 // This code may add new undefined symbols to the link, which may enqueue more
1090 // symbol resolution tasks, so we need to continue executing tasks until we1193 // symbol resolution tasks, so we need to continue executing tasks until we
...@@ -1093,7 +1196,7 @@ void LinkerDriver::link(ArrayRef<const char *> ArgsArr) {...@@ -1093,7 +1196,7 @@ void LinkerDriver::link(ArrayRef<const char *> ArgsArr) {
1093 // Windows specific -- if entry point is not found,1196 // Windows specific -- if entry point is not found,
1094 // search for its mangled names.1197 // search for its mangled names.
1095 if (Config->Entry)1198 if (Config->Entry)
1096 Symtab.mangleMaybe(Config->Entry);1199 Symtab->mangleMaybe(Config->Entry);
10971200
1098 // Windows specific -- Make sure we resolve all dllexported symbols.1201 // Windows specific -- Make sure we resolve all dllexported symbols.
1099 for (Export &E : Config->Exports) {1202 for (Export &E : Config->Exports) {
...@@ -1101,7 +1204,7 @@ void LinkerDriver::link(ArrayRef<const char *> ArgsArr) {...@@ -1101,7 +1204,7 @@ void LinkerDriver::link(ArrayRef<const char *> ArgsArr) {
1101 continue;1204 continue;
1102 E.Sym = addUndefined(E.Name);1205 E.Sym = addUndefined(E.Name);
1103 if (!E.Directives)1206 if (!E.Directives)
1104 Symtab.mangleMaybe(E.Sym);1207 Symtab->mangleMaybe(E.Sym);
1105 }1208 }
11061209
1107 // Add weak aliases. Weak aliases is a mechanism to give remaining1210 // Add weak aliases. Weak aliases is a mechanism to give remaining
...@@ -1109,20 +1212,20 @@ void LinkerDriver::link(ArrayRef<const char *> ArgsArr) {...@@ -1109,20 +1212,20 @@ void LinkerDriver::link(ArrayRef<const char *> ArgsArr) {
1109 for (auto Pair : Config->AlternateNames) {1212 for (auto Pair : Config->AlternateNames) {
1110 StringRef From = Pair.first;1213 StringRef From = Pair.first;
1111 StringRef To = Pair.second;1214 StringRef To = Pair.second;
1112 Symbol *Sym = Symtab.find(From);1215 Symbol *Sym = Symtab->find(From);
1113 if (!Sym)1216 if (!Sym)
1114 continue;1217 continue;
1115 if (auto *U = dyn_cast<Undefined>(Sym->body()))1218 if (auto *U = dyn_cast<Undefined>(Sym))
1116 if (!U->WeakAlias)1219 if (!U->WeakAlias)
1117 U->WeakAlias = Symtab.addUndefined(To);1220 U->WeakAlias = Symtab->addUndefined(To);
1118 }1221 }
11191222
1120 // Windows specific -- if __load_config_used can be resolved, resolve it.1223 // Windows specific -- if __load_config_used can be resolved, resolve it.
1121 if (Symtab.findUnderscore("_load_config_used"))1224 if (Symtab->findUnderscore("_load_config_used"))
1122 addUndefined(mangle("_load_config_used"));1225 addUndefined(mangle("_load_config_used"));
1123 } while (run());1226 } while (run());
11241227
1125 if (ErrorCount)1228 if (errorCount())
1126 return;1229 return;
11271230
1128 // If /msvclto is given, we use the MSVC linker to link LTO output files.1231 // If /msvclto is given, we use the MSVC linker to link LTO output files.
...@@ -1134,11 +1237,13 @@ void LinkerDriver::link(ArrayRef<const char *> ArgsArr) {...@@ -1134,11 +1237,13 @@ void LinkerDriver::link(ArrayRef<const char *> ArgsArr) {
11341237
1135 // Do LTO by compiling bitcode input files to a set of native COFF files then1238 // Do LTO by compiling bitcode input files to a set of native COFF files then
1136 // link those files.1239 // link those files.
1137 Symtab.addCombinedLTOObjects();1240 Symtab->addCombinedLTOObjects();
1138 run();1241 run();
11391242
1140 // Make sure we have resolved all symbols.1243 // Make sure we have resolved all symbols.
1141 Symtab.reportRemainingUndefines();1244 Symtab->reportRemainingUndefines();
1245 if (errorCount())
1246 return;
11421247
1143 // Windows specific -- if no /subsystem is given, we need to infer1248 // Windows specific -- if no /subsystem is given, we need to infer
1144 // that from entry point name.1249 // that from entry point name.
...@@ -1149,14 +1254,34 @@ void LinkerDriver::link(ArrayRef<const char *> ArgsArr) {...@@ -1149,14 +1254,34 @@ void LinkerDriver::link(ArrayRef<const char *> ArgsArr) {
1149 }1254 }
11501255
1151 // Handle /safeseh.1256 // Handle /safeseh.
1152 if (Args.hasArg(OPT_safeseh)) {1257 if (Args.hasFlag(OPT_safeseh, OPT_safeseh_no, false)) {
1153 for (ObjectFile *File : Symtab.ObjectFiles)1258 for (ObjFile *File : ObjFile::Instances)
1154 if (!File->SEHCompat)1259 if (!File->SEHCompat)
1155 error("/safeseh: " + File->getName() + " is not compatible with SEH");1260 error("/safeseh: " + File->getName() + " is not compatible with SEH");
1156 if (ErrorCount)1261 if (errorCount())
1157 return;1262 return;
1158 }1263 }
11591264
1265 // In MinGW, all symbols are automatically exported if no symbols
1266 // are chosen to be exported.
1267 if (Config->DLL && ((Config->MinGW && Config->Exports.empty()) ||
1268 Args.hasArg(OPT_export_all_symbols))) {
1269 AutoExporter Exporter;
1270
1271 Symtab->forEachSymbol([=](Symbol *S) {
1272 auto *Def = dyn_cast<Defined>(S);
1273 if (!Exporter.shouldExport(Def))
1274 return;
1275 Export E;
1276 E.Name = Def->getName();
1277 E.Sym = Def;
1278 if (Def->getChunk() &&
1279 !(Def->getChunk()->getPermissions() & IMAGE_SCN_MEM_EXECUTE))
1280 E.Data = true;
1281 Config->Exports.push_back(E);
1282 });
1283 }
1284
1160 // Windows specific -- when we are creating a .dll file, we also1285 // Windows specific -- when we are creating a .dll file, we also
1161 // need to create a .lib file.1286 // need to create a .lib file.
1162 if (!Config->Exports.empty() || Config->DLL) {1287 if (!Config->Exports.empty() || Config->DLL) {
...@@ -1165,20 +1290,45 @@ void LinkerDriver::link(ArrayRef<const char *> ArgsArr) {...@@ -1165,20 +1290,45 @@ void LinkerDriver::link(ArrayRef<const char *> ArgsArr) {
1165 assignExportOrdinals();1290 assignExportOrdinals();
1166 }1291 }
11671292
1293 // Handle /output-def (MinGW specific).
1294 if (auto *Arg = Args.getLastArg(OPT_output_def))
1295 writeDefFile(Arg->getValue());
1296
1297 // Set extra alignment for .comm symbols
1298 for (auto Pair : Config->AlignComm) {
1299 StringRef Name = Pair.first;
1300 uint32_t Alignment = Pair.second;
1301
1302 Symbol *Sym = Symtab->find(Name);
1303 if (!Sym) {
1304 warn("/aligncomm symbol " + Name + " not found");
1305 continue;
1306 }
1307
1308 auto *DC = dyn_cast<DefinedCommon>(Sym);
1309 if (!DC) {
1310 warn("/aligncomm symbol " + Name + " of wrong kind");
1311 continue;
1312 }
1313
1314 CommonChunk *C = DC->getChunk();
1315 C->Alignment = std::max(C->Alignment, Alignment);
1316 }
1317
1168 // Windows specific -- Create a side-by-side manifest file.1318 // Windows specific -- Create a side-by-side manifest file.
1169 if (Config->Manifest == Configuration::SideBySide)1319 if (Config->Manifest == Configuration::SideBySide)
1170 createSideBySideManifest();1320 createSideBySideManifest();
11711321
1172 // Identify unreferenced COMDAT sections.1322 // Identify unreferenced COMDAT sections.
1173 if (Config->DoGC)1323 if (Config->DoGC)
1174 markLive(Symtab.getChunks());1324 markLive(Symtab->getChunks());
11751325
1176 // Identify identical COMDAT sections to merge them.1326 // Identify identical COMDAT sections to merge them.
1177 if (Config->DoICF)1327 if (Config->DoICF)
1178 doICF(Symtab.getChunks());1328 doICF(Symtab->getChunks());
11791329
1180 // Write the result.1330 // Write the result.
1181 writeResult(&Symtab);1331 writeResult();
1182}1332}
11831333
1184} // namespace coff1334} // namespace coff
deps/lld/COFF/Driver.h+29-21
...@@ -12,10 +12,11 @@...@@ -12,10 +12,11 @@
1212
13#include "Config.h"13#include "Config.h"
14#include "SymbolTable.h"14#include "SymbolTable.h"
15#include "lld/Core/LLVM.h"15#include "lld/Common/LLVM.h"
16#include "lld/Core/Reproduce.h"16#include "lld/Common/Reproduce.h"
17#include "llvm/ADT/Optional.h"17#include "llvm/ADT/Optional.h"
18#include "llvm/ADT/StringRef.h"18#include "llvm/ADT/StringRef.h"
19#include "llvm/ADT/StringSet.h"
19#include "llvm/Object/Archive.h"20#include "llvm/Object/Archive.h"
20#include "llvm/Object/COFF.h"21#include "llvm/Object/COFF.h"
21#include "llvm/Option/Arg.h"22#include "llvm/Option/Arg.h"
...@@ -36,31 +37,39 @@ using llvm::COFF::WindowsSubsystem;...@@ -36,31 +37,39 @@ using llvm::COFF::WindowsSubsystem;
36using llvm::Optional;37using llvm::Optional;
3738
38// Implemented in MarkLive.cpp.39// Implemented in MarkLive.cpp.
39void markLive(const std::vector<Chunk *> &Chunks);40void markLive(ArrayRef<Chunk *> Chunks);
4041
41// Implemented in ICF.cpp.42// Implemented in ICF.cpp.
42void doICF(const std::vector<Chunk *> &Chunks);43void doICF(ArrayRef<Chunk *> Chunks);
4344
44class ArgParser {45class COFFOptTable : public llvm::opt::OptTable {
45public:46public:
46 // Parses command line options.47 COFFOptTable();
47 llvm::opt::InputArgList parse(llvm::ArrayRef<const char *> Args);48};
4849
49 // Concatenate LINK environment varirable and given arguments and parse them.50class ArgParser {
51public:
52 // Concatenate LINK environment variable and given arguments and parse them.
50 llvm::opt::InputArgList parseLINK(std::vector<const char *> Args);53 llvm::opt::InputArgList parseLINK(std::vector<const char *> Args);
5154
52 // Tokenizes a given string and then parses as command line options.55 // Tokenizes a given string and then parses as command line options.
53 llvm::opt::InputArgList parse(StringRef S) { return parse(tokenize(S)); }56 llvm::opt::InputArgList parse(StringRef S) { return parse(tokenize(S)); }
5457
58 // Tokenizes a given string and then parses as command line options in
59 // .drectve section.
60 llvm::opt::InputArgList parseDirectives(StringRef S);
61
55private:62private:
63 // Parses command line options.
64 llvm::opt::InputArgList parse(llvm::ArrayRef<const char *> Args);
65
56 std::vector<const char *> tokenize(StringRef S);66 std::vector<const char *> tokenize(StringRef S);
5767
58 std::vector<const char *> replaceResponseFiles(std::vector<const char *>);68 COFFOptTable Table;
59};69};
6070
61class LinkerDriver {71class LinkerDriver {
62public:72public:
63 LinkerDriver() { coff::Symtab = &Symtab; }
64 void link(llvm::ArrayRef<const char *> Args);73 void link(llvm::ArrayRef<const char *> Args);
6574
66 // Used by the resolver to parse .drectve section contents.75 // Used by the resolver to parse .drectve section contents.
...@@ -70,10 +79,9 @@ public:...@@ -70,10 +79,9 @@ public:
70 void enqueueArchiveMember(const Archive::Child &C, StringRef SymName,79 void enqueueArchiveMember(const Archive::Child &C, StringRef SymName,
71 StringRef ParentName);80 StringRef ParentName);
7281
73private:82 MemoryBufferRef takeBuffer(std::unique_ptr<MemoryBuffer> MB);
74 ArgParser Parser;
75 SymbolTable Symtab;
7683
84private:
77 std::unique_ptr<llvm::TarWriter> Tar; // for /linkrepro85 std::unique_ptr<llvm::TarWriter> Tar; // for /linkrepro
7886
79 // Opens a file. Path has to be resolved already.87 // Opens a file. Path has to be resolved already.
...@@ -93,7 +101,7 @@ private:...@@ -93,7 +101,7 @@ private:
93 std::set<std::string> VisitedFiles;101 std::set<std::string> VisitedFiles;
94 std::set<std::string> VisitedLibs;102 std::set<std::string> VisitedLibs;
95103
96 SymbolBody *addUndefined(StringRef Sym);104 Symbol *addUndefined(StringRef Sym);
97 StringRef mangle(StringRef Sym);105 StringRef mangle(StringRef Sym);
98106
99 // Windows specific -- "main" is not the only main function in Windows.107 // Windows specific -- "main" is not the only main function in Windows.
...@@ -108,12 +116,11 @@ private:...@@ -108,12 +116,11 @@ private:
108116
109 void invokeMSVC(llvm::opt::InputArgList &Args);117 void invokeMSVC(llvm::opt::InputArgList &Args);
110118
111 MemoryBufferRef takeBuffer(std::unique_ptr<MemoryBuffer> MB);119 void addBuffer(std::unique_ptr<MemoryBuffer> MB, bool WholeArchive);
112 void addBuffer(std::unique_ptr<MemoryBuffer> MB);
113 void addArchiveBuffer(MemoryBufferRef MBRef, StringRef SymName,120 void addArchiveBuffer(MemoryBufferRef MBRef, StringRef SymName,
114 StringRef ParentName);121 StringRef ParentName);
115122
116 void enqueuePath(StringRef Path);123 void enqueuePath(StringRef Path, bool WholeArchive);
117124
118 void enqueueTask(std::function<void()> Task);125 void enqueueTask(std::function<void()> Task);
119 bool run();126 bool run();
...@@ -121,6 +128,8 @@ private:...@@ -121,6 +128,8 @@ private:
121 std::list<std::function<void()>> TaskQueue;128 std::list<std::function<void()>> TaskQueue;
122 std::vector<StringRef> FilePaths;129 std::vector<StringRef> FilePaths;
123 std::vector<MemoryBufferRef> Resources;130 std::vector<MemoryBufferRef> Resources;
131
132 llvm::StringSet<> DirectivesExports;
124};133};
125134
126// Functions below this line are defined in DriverUtils.cpp.135// Functions below this line are defined in DriverUtils.cpp.
...@@ -145,6 +154,7 @@ void parseSubsystem(StringRef Arg, WindowsSubsystem *Sys, uint32_t *Major,...@@ -145,6 +154,7 @@ void parseSubsystem(StringRef Arg, WindowsSubsystem *Sys, uint32_t *Major,
145void parseAlternateName(StringRef);154void parseAlternateName(StringRef);
146void parseMerge(StringRef);155void parseMerge(StringRef);
147void parseSection(StringRef);156void parseSection(StringRef);
157void parseAligncomm(StringRef);
148158
149// Parses a string in the form of "EMBED[,=<integer>]|NO".159// Parses a string in the form of "EMBED[,=<integer>]|NO".
150void parseManifest(StringRef Arg);160void parseManifest(StringRef Arg);
...@@ -167,10 +177,8 @@ void assignExportOrdinals();...@@ -167,10 +177,8 @@ void assignExportOrdinals();
167// incompatible objects.177// incompatible objects.
168void checkFailIfMismatch(StringRef Arg);178void checkFailIfMismatch(StringRef Arg);
169179
170// Convert Windows resource files (.res files) to a .obj file180// Convert Windows resource files (.res files) to a .obj file.
171// using cvtres.exe.181MemoryBufferRef convertResToCOFF(ArrayRef<MemoryBufferRef> MBs);
172std::unique_ptr<MemoryBuffer>
173convertResToCOFF(const std::vector<MemoryBufferRef> &MBs);
174182
175void runMSVCLinker(std::string Rsp, ArrayRef<StringRef> Objects);183void runMSVCLinker(std::string Rsp, ArrayRef<StringRef> Objects);
176184
deps/lld/COFF/DriverUtils.cpp+149-83
...@@ -15,9 +15,9 @@...@@ -15,9 +15,9 @@
1515
16#include "Config.h"16#include "Config.h"
17#include "Driver.h"17#include "Driver.h"
18#include "Error.h"
19#include "Memory.h"
20#include "Symbols.h"18#include "Symbols.h"
19#include "lld/Common/ErrorHandler.h"
20#include "lld/Common/Memory.h"
21#include "llvm/ADT/Optional.h"21#include "llvm/ADT/Optional.h"
22#include "llvm/ADT/StringSwitch.h"22#include "llvm/ADT/StringSwitch.h"
23#include "llvm/BinaryFormat/COFF.h"23#include "llvm/BinaryFormat/COFF.h"
...@@ -32,12 +32,11 @@...@@ -32,12 +32,11 @@
32#include "llvm/Support/Process.h"32#include "llvm/Support/Process.h"
33#include "llvm/Support/Program.h"33#include "llvm/Support/Program.h"
34#include "llvm/Support/raw_ostream.h"34#include "llvm/Support/raw_ostream.h"
35#include "llvm/WindowsManifest/WindowsManifestMerger.h"
35#include <memory>36#include <memory>
3637
37using namespace llvm::COFF;38using namespace llvm::COFF;
38using namespace llvm;39using namespace llvm;
39using llvm::cl::ExpandResponseFiles;
40using llvm::cl::TokenizeWindowsCommandLine;
41using llvm::sys::Process;40using llvm::sys::Process;
4241
43namespace lld {42namespace lld {
...@@ -58,7 +57,7 @@ public:...@@ -58,7 +57,7 @@ public:
58 void run() {57 void run() {
59 ErrorOr<std::string> ExeOrErr = sys::findProgramByName(Prog);58 ErrorOr<std::string> ExeOrErr = sys::findProgramByName(Prog);
60 if (auto EC = ExeOrErr.getError())59 if (auto EC = ExeOrErr.getError())
61 fatal(EC, "unable to find " + Prog + " in PATH: ");60 fatal("unable to find " + Prog + " in PATH: " + EC.message());
62 StringRef Exe = Saver.save(*ExeOrErr);61 StringRef Exe = Saver.save(*ExeOrErr);
63 Args.insert(Args.begin(), Exe);62 Args.insert(Args.begin(), Exe);
6463
...@@ -221,6 +220,22 @@ void parseSection(StringRef S) {...@@ -221,6 +220,22 @@ void parseSection(StringRef S) {
221 Config->Section[Name] = parseSectionAttributes(Attrs);220 Config->Section[Name] = parseSectionAttributes(Attrs);
222}221}
223222
223// Parses /aligncomm option argument.
224void parseAligncomm(StringRef S) {
225 StringRef Name, Align;
226 std::tie(Name, Align) = S.split(',');
227 if (Name.empty() || Align.empty()) {
228 error("/aligncomm: invalid argument: " + S);
229 return;
230 }
231 int V;
232 if (Align.getAsInteger(0, V)) {
233 error("/aligncomm: invalid argument: " + S);
234 return;
235 }
236 Config->AlignComm[Name] = std::max(Config->AlignComm[Name], 1 << V);
237}
238
224// Parses a string in the form of "EMBED[,=<integer>]|NO".239// Parses a string in the form of "EMBED[,=<integer>]|NO".
225// Results are directly written to Config.240// Results are directly written to Config.
226void parseManifest(StringRef Arg) {241void parseManifest(StringRef Arg) {
...@@ -273,14 +288,14 @@ public:...@@ -273,14 +288,14 @@ public:
273 TemporaryFile(StringRef Prefix, StringRef Extn, StringRef Contents = "") {288 TemporaryFile(StringRef Prefix, StringRef Extn, StringRef Contents = "") {
274 SmallString<128> S;289 SmallString<128> S;
275 if (auto EC = sys::fs::createTemporaryFile("lld-" + Prefix, Extn, S))290 if (auto EC = sys::fs::createTemporaryFile("lld-" + Prefix, Extn, S))
276 fatal(EC, "cannot create a temporary file");291 fatal("cannot create a temporary file: " + EC.message());
277 Path = S.str();292 Path = S.str();
278293
279 if (!Contents.empty()) {294 if (!Contents.empty()) {
280 std::error_code EC;295 std::error_code EC;
281 raw_fd_ostream OS(Path, EC, sys::fs::F_None);296 raw_fd_ostream OS(Path, EC, sys::fs::F_None);
282 if (EC)297 if (EC)
283 fatal(EC, "failed to open " + Path);298 fatal("failed to open " + Path + ": " + EC.message());
284 OS << Contents;299 OS << Contents;
285 }300 }
286 }301 }
...@@ -302,7 +317,7 @@ public:...@@ -302,7 +317,7 @@ public:
302 // is called (you cannot remove an opened file on Windows.)317 // is called (you cannot remove an opened file on Windows.)
303 std::unique_ptr<MemoryBuffer> getMemoryBuffer() {318 std::unique_ptr<MemoryBuffer> getMemoryBuffer() {
304 // IsVolatileSize=true forces MemoryBuffer to not use mmap().319 // IsVolatileSize=true forces MemoryBuffer to not use mmap().
305 return check(MemoryBuffer::getFile(Path, /*FileSize=*/-1,320 return CHECK(MemoryBuffer::getFile(Path, /*FileSize=*/-1,
306 /*RequiresNullTerminator=*/false,321 /*RequiresNullTerminator=*/false,
307 /*IsVolatileSize=*/true),322 /*IsVolatileSize=*/true),
308 "could not open " + Path);323 "could not open " + Path);
...@@ -312,16 +327,9 @@ public:...@@ -312,16 +327,9 @@ public:
312};327};
313}328}
314329
315// Create the default manifest file as a temporary file.330static std::string createDefaultXml() {
316TemporaryFile createDefaultXml() {331 std::string Ret;
317 // Create a temporary file.332 raw_string_ostream OS(Ret);
318 TemporaryFile File("defaultxml", "manifest");
319
320 // Open the temporary file for writing.
321 std::error_code EC;
322 raw_fd_ostream OS(File.Path, EC, sys::fs::F_Text);
323 if (EC)
324 fatal(EC, "failed to open " + File.Path);
325333
326 // Emit the XML. Note that we do *not* verify that the XML attributes are334 // Emit the XML. Note that we do *not* verify that the XML attributes are
327 // syntactically correct. This is intentional for link.exe compatibility.335 // syntactically correct. This is intentional for link.exe compatibility.
...@@ -337,46 +345,77 @@ TemporaryFile createDefaultXml() {...@@ -337,46 +345,77 @@ TemporaryFile createDefaultXml() {
337 << " </requestedPrivileges>\n"345 << " </requestedPrivileges>\n"
338 << " </security>\n"346 << " </security>\n"
339 << " </trustInfo>\n";347 << " </trustInfo>\n";
340 if (!Config->ManifestDependency.empty()) {348 }
341 OS << " <dependency>\n"349 if (!Config->ManifestDependency.empty()) {
342 << " <dependentAssembly>\n"350 OS << " <dependency>\n"
343 << " <assemblyIdentity " << Config->ManifestDependency << " />\n"351 << " <dependentAssembly>\n"
344 << " </dependentAssembly>\n"352 << " <assemblyIdentity " << Config->ManifestDependency << " />\n"
345 << " </dependency>\n";353 << " </dependentAssembly>\n"
346 }354 << " </dependency>\n";
347 }355 }
348 OS << "</assembly>\n";356 OS << "</assembly>\n";
349 OS.close();357 return OS.str();
350 return File;
351}358}
352359
353static std::string readFile(StringRef Path) {360static std::string createManifestXmlWithInternalMt(StringRef DefaultXml) {
354 std::unique_ptr<MemoryBuffer> MB =361 std::unique_ptr<MemoryBuffer> DefaultXmlCopy =
355 check(MemoryBuffer::getFile(Path), "could not open " + Path);362 MemoryBuffer::getMemBufferCopy(DefaultXml);
356 return MB->getBuffer();363
364 windows_manifest::WindowsManifestMerger Merger;
365 if (auto E = Merger.merge(*DefaultXmlCopy.get()))
366 fatal("internal manifest tool failed on default xml: " +
367 toString(std::move(E)));
368
369 for (StringRef Filename : Config->ManifestInput) {
370 std::unique_ptr<MemoryBuffer> Manifest =
371 check(MemoryBuffer::getFile(Filename));
372 if (auto E = Merger.merge(*Manifest.get()))
373 fatal("internal manifest tool failed on file " + Filename + ": " +
374 toString(std::move(E)));
375 }
376
377 return Merger.getMergedManifest().get()->getBuffer();
357}378}
358379
359static std::string createManifestXml() {380static std::string createManifestXmlWithExternalMt(StringRef DefaultXml) {
360 // Create the default manifest file.381 // Create the default manifest file as a temporary file.
361 TemporaryFile File1 = createDefaultXml();382 TemporaryFile Default("defaultxml", "manifest");
362 if (Config->ManifestInput.empty())383 std::error_code EC;
363 return readFile(File1.Path);384 raw_fd_ostream OS(Default.Path, EC, sys::fs::F_Text);
385 if (EC)
386 fatal("failed to open " + Default.Path + ": " + EC.message());
387 OS << DefaultXml;
388 OS.close();
364389
365 // If manifest files are supplied by the user using /MANIFESTINPUT390 // Merge user-supplied manifests if they are given. Since libxml2 is not
366 // option, we need to merge them with the default manifest.391 // enabled, we must shell out to Microsoft's mt.exe tool.
367 TemporaryFile File2("user", "manifest");392 TemporaryFile User("user", "manifest");
368393
369 Executor E("mt.exe");394 Executor E("mt.exe");
370 E.add("/manifest");395 E.add("/manifest");
371 E.add(File1.Path);396 E.add(Default.Path);
372 for (StringRef Filename : Config->ManifestInput) {397 for (StringRef Filename : Config->ManifestInput) {
373 E.add("/manifest");398 E.add("/manifest");
374 E.add(Filename);399 E.add(Filename);
375 }400 }
376 E.add("/nologo");401 E.add("/nologo");
377 E.add("/out:" + StringRef(File2.Path));402 E.add("/out:" + StringRef(User.Path));
378 E.run();403 E.run();
379 return readFile(File2.Path);404
405 return CHECK(MemoryBuffer::getFile(User.Path), "could not open " + User.Path)
406 .get()
407 ->getBuffer();
408}
409
410static std::string createManifestXml() {
411 std::string DefaultXml = createDefaultXml();
412 if (Config->ManifestInput.empty())
413 return DefaultXml;
414
415 if (windows_manifest::isAvailable())
416 return createManifestXmlWithInternalMt(DefaultXml);
417
418 return createManifestXmlWithExternalMt(DefaultXml);
380}419}
381420
382static std::unique_ptr<MemoryBuffer>421static std::unique_ptr<MemoryBuffer>
...@@ -386,7 +425,8 @@ createMemoryBufferForManifestRes(size_t ManifestSize) {...@@ -386,7 +425,8 @@ createMemoryBufferForManifestRes(size_t ManifestSize) {
386 sizeof(object::WinResHeaderPrefix) + sizeof(object::WinResIDs) +425 sizeof(object::WinResHeaderPrefix) + sizeof(object::WinResIDs) +
387 sizeof(object::WinResHeaderSuffix) + ManifestSize,426 sizeof(object::WinResHeaderSuffix) + ManifestSize,
388 object::WIN_RES_DATA_ALIGNMENT);427 object::WIN_RES_DATA_ALIGNMENT);
389 return MemoryBuffer::getNewMemBuffer(ResSize);428 return MemoryBuffer::getNewMemBuffer(ResSize,
429 Config->OutputFile + ".manifest.res");
390}430}
391431
392static void writeResFileHeader(char *&Buf) {432static void writeResFileHeader(char *&Buf) {
...@@ -444,7 +484,7 @@ void createSideBySideManifest() {...@@ -444,7 +484,7 @@ void createSideBySideManifest() {
444 std::error_code EC;484 std::error_code EC;
445 raw_fd_ostream Out(Path, EC, sys::fs::F_Text);485 raw_fd_ostream Out(Path, EC, sys::fs::F_Text);
446 if (EC)486 if (EC)
447 fatal(EC, "failed to create manifest");487 fatal("failed to create manifest: " + EC.message());
448 Out << createManifestXml();488 Out << createManifestXml();
449}489}
450490
...@@ -459,12 +499,12 @@ Export parseExport(StringRef Arg) {...@@ -459,12 +499,12 @@ Export parseExport(StringRef Arg) {
459 if (E.Name.empty())499 if (E.Name.empty())
460 goto err;500 goto err;
461501
462 if (E.Name.find('=') != StringRef::npos) {502 if (E.Name.contains('=')) {
463 StringRef X, Y;503 StringRef X, Y;
464 std::tie(X, Y) = E.Name.split("=");504 std::tie(X, Y) = E.Name.split("=");
465505
466 // If "<name>=<dllname>.<name>".506 // If "<name>=<dllname>.<name>".
467 if (Y.find(".") != StringRef::npos) {507 if (Y.contains(".")) {
468 E.Name = X;508 E.Name = X;
469 E.ForwardTo = Y;509 E.ForwardTo = Y;
470 return E;510 return E;
...@@ -534,7 +574,7 @@ void fixupExports() {...@@ -534,7 +574,7 @@ void fixupExports() {
534 }574 }
535575
536 for (Export &E : Config->Exports) {576 for (Export &E : Config->Exports) {
537 SymbolBody *Sym = E.Sym;577 Symbol *Sym = E.Sym;
538 if (!E.ForwardTo.empty() || !Sym) {578 if (!E.ForwardTo.empty() || !Sym) {
539 E.SymbolName = E.Name;579 E.SymbolName = E.Name;
540 } else {580 } else {
...@@ -554,7 +594,7 @@ void fixupExports() {...@@ -554,7 +594,7 @@ void fixupExports() {
554 }594 }
555595
556 // Uniquefy by name.596 // Uniquefy by name.
557 std::map<StringRef, Export *> Map;597 DenseMap<StringRef, Export *> Map(Config->Exports.size());
558 std::vector<Export> V;598 std::vector<Export> V;
559 for (Export &E : Config->Exports) {599 for (Export &E : Config->Exports) {
560 auto Pair = Map.insert(std::make_pair(E.ExportName, &E));600 auto Pair = Map.insert(std::make_pair(E.ExportName, &E));
...@@ -601,10 +641,8 @@ void checkFailIfMismatch(StringRef Arg) {...@@ -601,10 +641,8 @@ void checkFailIfMismatch(StringRef Arg) {
601 Config->MustMatch[K] = V;641 Config->MustMatch[K] = V;
602}642}
603643
604// Convert Windows resource files (.res files) to a .obj file644// Convert Windows resource files (.res files) to a .obj file.
605// using cvtres.exe.645MemoryBufferRef convertResToCOFF(ArrayRef<MemoryBufferRef> MBs) {
606std::unique_ptr<MemoryBuffer>
607convertResToCOFF(const std::vector<MemoryBufferRef> &MBs) {
608 object::WindowsResourceParser Parser;646 object::WindowsResourceParser Parser;
609647
610 for (MemoryBufferRef MB : MBs) {648 for (MemoryBufferRef MB : MBs) {
...@@ -613,14 +651,17 @@ convertResToCOFF(const std::vector<MemoryBufferRef> &MBs) {...@@ -613,14 +651,17 @@ convertResToCOFF(const std::vector<MemoryBufferRef> &MBs) {
613 if (!RF)651 if (!RF)
614 fatal("cannot compile non-resource file as resource");652 fatal("cannot compile non-resource file as resource");
615 if (auto EC = Parser.parse(RF))653 if (auto EC = Parser.parse(RF))
616 fatal(EC, "failed to parse .res file");654 fatal("failed to parse .res file: " + toString(std::move(EC)));
617 }655 }
618656
619 Expected<std::unique_ptr<MemoryBuffer>> E =657 Expected<std::unique_ptr<MemoryBuffer>> E =
620 llvm::object::writeWindowsResourceCOFF(Config->Machine, Parser);658 llvm::object::writeWindowsResourceCOFF(Config->Machine, Parser);
621 if (!E)659 if (!E)
622 fatal(errorToErrorCode(E.takeError()), "failed to write .res to COFF");660 fatal("failed to write .res to COFF: " + toString(E.takeError()));
623 return std::move(E.get());661
662 MemoryBufferRef MBRef = **E;
663 make<std::unique_ptr<MemoryBuffer>>(std::move(*E)); // take ownership
664 return MBRef;
624}665}
625666
626// Run MSVC link.exe for given in-memory object files.667// Run MSVC link.exe for given in-memory object files.
...@@ -651,7 +692,7 @@ void runMSVCLinker(std::string Rsp, ArrayRef<StringRef> Objects) {...@@ -651,7 +692,7 @@ void runMSVCLinker(std::string Rsp, ArrayRef<StringRef> Objects) {
651#undef PREFIX692#undef PREFIX
652693
653// Create table mapping all options defined in Options.td694// Create table mapping all options defined in Options.td
654static const llvm::opt::OptTable::Info infoTable[] = {695static const llvm::opt::OptTable::Info InfoTable[] = {
655#define OPTION(X1, X2, ID, KIND, GROUP, ALIAS, X7, X8, X9, X10, X11, X12) \696#define OPTION(X1, X2, ID, KIND, GROUP, ALIAS, X7, X8, X9, X10, X11, X12) \
656 {X1, X2, X10, X11, OPT_##ID, llvm::opt::Option::KIND##Class, \697 {X1, X2, X10, X11, OPT_##ID, llvm::opt::Option::KIND##Class, \
657 X9, X8, OPT_##GROUP, OPT_##ALIAS, X7, X12},698 X9, X8, OPT_##GROUP, OPT_##ALIAS, X7, X12},
...@@ -659,30 +700,65 @@ static const llvm::opt::OptTable::Info infoTable[] = {...@@ -659,30 +700,65 @@ static const llvm::opt::OptTable::Info infoTable[] = {
659#undef OPTION700#undef OPTION
660};701};
661702
662class COFFOptTable : public llvm::opt::OptTable {703COFFOptTable::COFFOptTable() : OptTable(InfoTable, true) {}
663public:
664 COFFOptTable() : OptTable(infoTable, true) {}
665};
666704
667// Parses a given list of options.705static cl::TokenizerCallback getQuotingStyle(opt::InputArgList &Args) {
668opt::InputArgList ArgParser::parse(ArrayRef<const char *> ArgsArr) {706 if (auto *Arg = Args.getLastArg(OPT_rsp_quoting)) {
669 // First, replace respnose files (@<file>-style options).707 StringRef S = Arg->getValue();
670 std::vector<const char *> Argv = replaceResponseFiles(ArgsArr);708 if (S != "windows" && S != "posix")
709 error("invalid response file quoting: " + S);
710 if (S == "windows")
711 return cl::TokenizeWindowsCommandLine;
712 return cl::TokenizeGNUCommandLine;
713 }
714 // The COFF linker always defaults to Windows quoting.
715 return cl::TokenizeWindowsCommandLine;
716}
671717
718// Parses a given list of options.
719opt::InputArgList ArgParser::parse(ArrayRef<const char *> Argv) {
672 // Make InputArgList from string vectors.720 // Make InputArgList from string vectors.
673 COFFOptTable Table;
674 unsigned MissingIndex;721 unsigned MissingIndex;
675 unsigned MissingCount;722 unsigned MissingCount;
676 opt::InputArgList Args = Table.ParseArgs(Argv, MissingIndex, MissingCount);723 SmallVector<const char *, 256> Vec(Argv.data(), Argv.data() + Argv.size());
724
725 // We need to get the quoting style for response files before parsing all
726 // options so we parse here before and ignore all the options but
727 // --rsp-quoting.
728 opt::InputArgList Args = Table.ParseArgs(Vec, MissingIndex, MissingCount);
729
730 // Expand response files (arguments in the form of @<filename>)
731 // and then parse the argument again.
732 cl::ExpandResponseFiles(Saver, getQuotingStyle(Args), Vec);
733 Args = Table.ParseArgs(Vec, MissingIndex, MissingCount);
677734
678 // Print the real command line if response files are expanded.735 // Print the real command line if response files are expanded.
679 if (Args.hasArg(OPT_verbose) && ArgsArr.size() != Argv.size()) {736 if (Args.hasArg(OPT_verbose) && Argv.size() != Vec.size()) {
680 std::string Msg = "Command line:";737 std::string Msg = "Command line:";
681 for (const char *S : Argv)738 for (const char *S : Vec)
682 Msg += " " + std::string(S);739 Msg += " " + std::string(S);
683 message(Msg);740 message(Msg);
684 }741 }
685742
743 // Handle /WX early since it converts missing argument warnings to errors.
744 errorHandler().FatalWarnings = Args.hasFlag(OPT_WX, OPT_WX_no, false);
745
746 if (MissingCount)
747 fatal(Twine(Args.getArgString(MissingIndex)) + ": missing argument");
748 for (auto *Arg : Args.filtered(OPT_UNKNOWN))
749 warn("ignoring unknown argument: " + Arg->getSpelling());
750 return Args;
751}
752
753// Tokenizes and parses a given string as command line in .drective section.
754opt::InputArgList ArgParser::parseDirectives(StringRef S) {
755 // Make InputArgList from string vectors.
756 unsigned MissingIndex;
757 unsigned MissingCount;
758
759 opt::InputArgList Args =
760 Table.ParseArgs(tokenize(S), MissingIndex, MissingCount);
761
686 if (MissingCount)762 if (MissingCount)
687 fatal(Twine(Args.getArgString(MissingIndex)) + ": missing argument");763 fatal(Twine(Args.getArgString(MissingIndex)) + ": missing argument");
688 for (auto *Arg : Args.filtered(OPT_UNKNOWN))764 for (auto *Arg : Args.filtered(OPT_UNKNOWN))
...@@ -693,17 +769,17 @@ opt::InputArgList ArgParser::parse(ArrayRef<const char *> ArgsArr) {...@@ -693,17 +769,17 @@ opt::InputArgList ArgParser::parse(ArrayRef<const char *> ArgsArr) {
693// link.exe has an interesting feature. If LINK or _LINK_ environment769// link.exe has an interesting feature. If LINK or _LINK_ environment
694// variables exist, their contents are handled as command line strings.770// variables exist, their contents are handled as command line strings.
695// So you can pass extra arguments using them.771// So you can pass extra arguments using them.
696opt::InputArgList ArgParser::parseLINK(std::vector<const char *> Args) {772opt::InputArgList ArgParser::parseLINK(std::vector<const char *> Argv) {
697 // Concatenate LINK env and command line arguments, and then parse them.773 // Concatenate LINK env and command line arguments, and then parse them.
698 if (Optional<std::string> S = Process::GetEnv("LINK")) {774 if (Optional<std::string> S = Process::GetEnv("LINK")) {
699 std::vector<const char *> V = tokenize(*S);775 std::vector<const char *> V = tokenize(*S);
700 Args.insert(Args.begin(), V.begin(), V.end());776 Argv.insert(Argv.begin(), V.begin(), V.end());
701 }777 }
702 if (Optional<std::string> S = Process::GetEnv("_LINK_")) {778 if (Optional<std::string> S = Process::GetEnv("_LINK_")) {
703 std::vector<const char *> V = tokenize(*S);779 std::vector<const char *> V = tokenize(*S);
704 Args.insert(Args.begin(), V.begin(), V.end());780 Argv.insert(Argv.begin(), V.begin(), V.end());
705 }781 }
706 return parse(Args);782 return parse(Argv);
707}783}
708784
709std::vector<const char *> ArgParser::tokenize(StringRef S) {785std::vector<const char *> ArgParser::tokenize(StringRef S) {
...@@ -712,18 +788,8 @@ std::vector<const char *> ArgParser::tokenize(StringRef S) {...@@ -712,18 +788,8 @@ std::vector<const char *> ArgParser::tokenize(StringRef S) {
712 return std::vector<const char *>(Tokens.begin(), Tokens.end());788 return std::vector<const char *>(Tokens.begin(), Tokens.end());
713}789}
714790
715// Creates a new command line by replacing options starting with '@'
716// character. '@<filename>' is replaced by the file's contents.
717std::vector<const char *>
718ArgParser::replaceResponseFiles(std::vector<const char *> Argv) {
719 SmallVector<const char *, 256> Tokens(Argv.data(), Argv.data() + Argv.size());
720 ExpandResponseFiles(Saver, TokenizeWindowsCommandLine, Tokens);
721 return std::vector<const char *>(Tokens.begin(), Tokens.end());
722}
723
724void printHelp(const char *Argv0) {791void printHelp(const char *Argv0) {
725 COFFOptTable Table;792 COFFOptTable().PrintHelp(outs(), Argv0, "LLVM Linker", false);
726 Table.PrintHelp(outs(), Argv0, "LLVM Linker", false);
727}793}
728794
729} // namespace coff795} // namespace coff
deps/lld/COFF/Error.cpp deleted-115
...@@ -1,115 +0,0 @@
1//===- Error.cpp ----------------------------------------------------------===//
2//
3// The LLVM Linker
4//
5// This file is distributed under the University of Illinois Open Source
6// License. See LICENSE.TXT for details.
7//
8//===----------------------------------------------------------------------===//
9
10#include "Error.h"
11#include "Config.h"
12
13#include "llvm/ADT/Twine.h"
14#include "llvm/Support/Error.h"
15#include "llvm/Support/ManagedStatic.h"
16#include "llvm/Support/Process.h"
17#include "llvm/Support/raw_ostream.h"
18#include <mutex>
19
20#if !defined(_MSC_VER) && !defined(__MINGW32__)
21#include <unistd.h>
22#endif
23
24using namespace llvm;
25
26namespace lld {
27// The functions defined in this file can be called from multiple threads,
28// but outs() or errs() are not thread-safe. We protect them using a mutex.
29static std::mutex Mu;
30
31namespace coff {
32uint64_t ErrorCount;
33raw_ostream *ErrorOS;
34
35LLVM_ATTRIBUTE_NORETURN void exitLld(int Val) {
36 // Dealloc/destroy ManagedStatic variables before calling
37 // _exit(). In a non-LTO build, this is a nop. In an LTO
38 // build allows us to get the output of -time-passes.
39 llvm_shutdown();
40
41 outs().flush();
42 errs().flush();
43 _exit(Val);
44}
45
46static void print(StringRef S, raw_ostream::Colors C) {
47 *ErrorOS << Config->Argv[0] << ": ";
48 if (Config->ColorDiagnostics) {
49 ErrorOS->changeColor(C, true);
50 *ErrorOS << S;
51 ErrorOS->resetColor();
52 } else {
53 *ErrorOS << S;
54 }
55}
56
57void log(const Twine &Msg) {
58 if (Config->Verbose) {
59 std::lock_guard<std::mutex> Lock(Mu);
60 outs() << Config->Argv[0] << ": " << Msg << "\n";
61 outs().flush();
62 }
63}
64
65void message(const Twine &Msg) {
66 std::lock_guard<std::mutex> Lock(Mu);
67 outs() << Msg << "\n";
68 outs().flush();
69}
70
71void error(const Twine &Msg) {
72 std::lock_guard<std::mutex> Lock(Mu);
73
74 if (Config->ErrorLimit == 0 || ErrorCount < Config->ErrorLimit) {
75 print("error: ", raw_ostream::RED);
76 *ErrorOS << Msg << "\n";
77 } else if (ErrorCount == Config->ErrorLimit) {
78 print("error: ", raw_ostream::RED);
79 *ErrorOS << "too many errors emitted, stopping now"
80 << " (use /ERRORLIMIT:0 to see all errors)\n";
81 if (Config->CanExitEarly)
82 exitLld(1);
83 }
84
85 ++ErrorCount;
86}
87
88void fatal(const Twine &Msg) {
89 if (Config->ColorDiagnostics) {
90 errs().changeColor(raw_ostream::RED, /*bold=*/true);
91 errs() << "error: ";
92 errs().resetColor();
93 } else {
94 errs() << "error: ";
95 }
96 errs() << Msg << "\n";
97 exitLld(1);
98}
99
100void fatal(std::error_code EC, const Twine &Msg) {
101 fatal(Msg + ": " + EC.message());
102}
103
104void fatal(llvm::Error &Err, const Twine &Msg) {
105 fatal(errorToErrorCode(std::move(Err)), Msg);
106}
107
108void warn(const Twine &Msg) {
109 std::lock_guard<std::mutex> Lock(Mu);
110 print("warning: ", raw_ostream::MAGENTA);
111 *ErrorOS << Msg << "\n";
112}
113
114} // namespace coff
115} // namespace lld
deps/lld/COFF/Error.h deleted-64
...@@ -1,64 +0,0 @@
1//===- Error.h --------------------------------------------------*- C++ -*-===//
2//
3// The LLVM Linker
4//
5// This file is distributed under the University of Illinois Open Source
6// License. See LICENSE.TXT for details.
7//
8//===----------------------------------------------------------------------===//
9
10#ifndef LLD_COFF_ERROR_H
11#define LLD_COFF_ERROR_H
12
13#include "lld/Core/LLVM.h"
14#include "llvm/Support/Error.h"
15
16namespace lld {
17namespace coff {
18
19extern uint64_t ErrorCount;
20extern llvm::raw_ostream *ErrorOS;
21
22void log(const Twine &Msg);
23void message(const Twine &Msg);
24void warn(const Twine &Msg);
25void error(const Twine &Msg);
26LLVM_ATTRIBUTE_NORETURN void fatal(const Twine &Msg);
27LLVM_ATTRIBUTE_NORETURN void fatal(std::error_code EC, const Twine &Prefix);
28LLVM_ATTRIBUTE_NORETURN void fatal(llvm::Error &Err, const Twine &Prefix);
29
30LLVM_ATTRIBUTE_NORETURN void exitLld(int Val);
31
32template <class T> T check(ErrorOr<T> V, const Twine &Prefix) {
33 if (auto EC = V.getError())
34 fatal(EC, Prefix);
35 return std::move(*V);
36}
37
38template <class T> T check(Expected<T> E, const Twine &Prefix) {
39 if (llvm::Error Err = E.takeError())
40 fatal(Err, Prefix);
41 return std::move(*E);
42}
43
44template <class T> T check(ErrorOr<T> EO) {
45 if (!EO)
46 fatal(EO.getError().message());
47 return std::move(*EO);
48}
49
50template <class T> T check(Expected<T> E) {
51 if (!E) {
52 std::string Buf;
53 llvm::raw_string_ostream OS(Buf);
54 logAllUnhandledErrors(E.takeError(), OS, "");
55 OS.flush();
56 fatal(Buf);
57 }
58 return std::move(*E);
59}
60
61} // namespace coff
62} // namespace lld
63
64#endif
deps/lld/COFF/ICF.cpp+28-23
...@@ -19,8 +19,8 @@...@@ -19,8 +19,8 @@
19//===----------------------------------------------------------------------===//19//===----------------------------------------------------------------------===//
2020
21#include "Chunks.h"21#include "Chunks.h"
22#include "Error.h"
23#include "Symbols.h"22#include "Symbols.h"
23#include "lld/Common/ErrorHandler.h"
24#include "llvm/ADT/Hashing.h"24#include "llvm/ADT/Hashing.h"
25#include "llvm/Support/Debug.h"25#include "llvm/Support/Debug.h"
26#include "llvm/Support/Parallel.h"26#include "llvm/Support/Parallel.h"
...@@ -36,7 +36,7 @@ namespace coff {...@@ -36,7 +36,7 @@ namespace coff {
3636
37class ICF {37class ICF {
38public:38public:
39 void run(const std::vector<Chunk *> &V);39 void run(ArrayRef<Chunk *> V);
4040
41private:41private:
42 void segregate(size_t Begin, size_t End, bool Constant);42 void segregate(size_t Begin, size_t End, bool Constant);
...@@ -61,12 +61,9 @@ private:...@@ -61,12 +61,9 @@ private:
6161
62// Returns a hash value for S.62// Returns a hash value for S.
63uint32_t ICF::getHash(SectionChunk *C) {63uint32_t ICF::getHash(SectionChunk *C) {
64 return hash_combine(C->getPermissions(),64 return hash_combine(C->getPermissions(), C->SectionName, C->NumRelocs,
65 hash_value(C->SectionName),65 C->Alignment, uint32_t(C->Header->SizeOfRawData),
66 C->NumRelocs,66 C->Checksum, C->getContents());
67 C->getAlign(),
68 uint32_t(C->Header->SizeOfRawData),
69 C->Checksum);
70}67}
7168
72// Returns true if section S is subject of ICF.69// Returns true if section S is subject of ICF.
...@@ -76,12 +73,21 @@ uint32_t ICF::getHash(SectionChunk *C) {...@@ -76,12 +73,21 @@ uint32_t ICF::getHash(SectionChunk *C) {
76// 2017) says that /opt:icf folds both functions and read-only data.73// 2017) says that /opt:icf folds both functions and read-only data.
77// Despite that, the MSVC linker folds only functions. We found74// Despite that, the MSVC linker folds only functions. We found
78// a few instances of programs that are not safe for data merging.75// a few instances of programs that are not safe for data merging.
79// Therefore, we merge only functions just like the MSVC tool.76// Therefore, we merge only functions just like the MSVC tool. However, we merge
77// identical .xdata sections, because the address of unwind information is
78// insignificant to the user program and the Visual C++ linker does this.
80bool ICF::isEligible(SectionChunk *C) {79bool ICF::isEligible(SectionChunk *C) {
81 bool Global = C->Sym && C->Sym->isExternal();80 // Non-comdat chunks, dead chunks, and writable chunks are not elegible.
82 bool Executable = C->getPermissions() & llvm::COFF::IMAGE_SCN_MEM_EXECUTE;
83 bool Writable = C->getPermissions() & llvm::COFF::IMAGE_SCN_MEM_WRITE;81 bool Writable = C->getPermissions() & llvm::COFF::IMAGE_SCN_MEM_WRITE;
84 return C->isCOMDAT() && C->isLive() && Global && Executable && !Writable;82 if (!C->isCOMDAT() || !C->isLive() || Writable)
83 return false;
84
85 // Code sections are eligible.
86 if (C->getPermissions() & llvm::COFF::IMAGE_SCN_MEM_EXECUTE)
87 return true;
88
89 // .xdata unwind info sections are eligble.
90 return C->getSectionName().split('$').first == ".xdata";
85}91}
8692
87// Split an equivalence class into smaller classes.93// Split an equivalence class into smaller classes.
...@@ -122,8 +128,8 @@ bool ICF::equalsConstant(const SectionChunk *A, const SectionChunk *B) {...@@ -122,8 +128,8 @@ bool ICF::equalsConstant(const SectionChunk *A, const SectionChunk *B) {
122 R1.VirtualAddress != R2.VirtualAddress) {128 R1.VirtualAddress != R2.VirtualAddress) {
123 return false;129 return false;
124 }130 }
125 SymbolBody *B1 = A->File->getSymbolBody(R1.SymbolTableIndex);131 Symbol *B1 = A->File->getSymbol(R1.SymbolTableIndex);
126 SymbolBody *B2 = B->File->getSymbolBody(R2.SymbolTableIndex);132 Symbol *B2 = B->File->getSymbol(R2.SymbolTableIndex);
127 if (B1 == B2)133 if (B1 == B2)
128 return true;134 return true;
129 if (auto *D1 = dyn_cast<DefinedRegular>(B1))135 if (auto *D1 = dyn_cast<DefinedRegular>(B1))
...@@ -137,19 +143,17 @@ bool ICF::equalsConstant(const SectionChunk *A, const SectionChunk *B) {...@@ -137,19 +143,17 @@ bool ICF::equalsConstant(const SectionChunk *A, const SectionChunk *B) {
137143
138 // Compare section attributes and contents.144 // Compare section attributes and contents.
139 return A->getPermissions() == B->getPermissions() &&145 return A->getPermissions() == B->getPermissions() &&
140 A->SectionName == B->SectionName &&146 A->SectionName == B->SectionName && A->Alignment == B->Alignment &&
141 A->getAlign() == B->getAlign() &&
142 A->Header->SizeOfRawData == B->Header->SizeOfRawData &&147 A->Header->SizeOfRawData == B->Header->SizeOfRawData &&
143 A->Checksum == B->Checksum &&148 A->Checksum == B->Checksum && A->getContents() == B->getContents();
144 A->getContents() == B->getContents();
145}149}
146150
147// Compare "moving" part of two sections, namely relocation targets.151// Compare "moving" part of two sections, namely relocation targets.
148bool ICF::equalsVariable(const SectionChunk *A, const SectionChunk *B) {152bool ICF::equalsVariable(const SectionChunk *A, const SectionChunk *B) {
149 // Compare relocations.153 // Compare relocations.
150 auto Eq = [&](const coff_relocation &R1, const coff_relocation &R2) {154 auto Eq = [&](const coff_relocation &R1, const coff_relocation &R2) {
151 SymbolBody *B1 = A->File->getSymbolBody(R1.SymbolTableIndex);155 Symbol *B1 = A->File->getSymbol(R1.SymbolTableIndex);
152 SymbolBody *B2 = B->File->getSymbolBody(R2.SymbolTableIndex);156 Symbol *B2 = B->File->getSymbol(R2.SymbolTableIndex);
153 if (B1 == B2)157 if (B1 == B2)
154 return true;158 return true;
155 if (auto *D1 = dyn_cast<DefinedRegular>(B1))159 if (auto *D1 = dyn_cast<DefinedRegular>(B1))
...@@ -202,7 +206,7 @@ void ICF::forEachClass(std::function<void(size_t, size_t)> Fn) {...@@ -202,7 +206,7 @@ void ICF::forEachClass(std::function<void(size_t, size_t)> Fn) {
202// Merge identical COMDAT sections.206// Merge identical COMDAT sections.
203// Two sections are considered the same if their section headers,207// Two sections are considered the same if their section headers,
204// contents and relocations are all the same.208// contents and relocations are all the same.
205void ICF::run(const std::vector<Chunk *> &Vec) {209void ICF::run(ArrayRef<Chunk *> Vec) {
206 // Collect only mergeable sections and group by hash value.210 // Collect only mergeable sections and group by hash value.
207 uint32_t NextId = 1;211 uint32_t NextId = 1;
208 for (Chunk *C : Vec) {212 for (Chunk *C : Vec) {
...@@ -215,9 +219,10 @@ void ICF::run(const std::vector<Chunk *> &Vec) {...@@ -215,9 +219,10 @@ void ICF::run(const std::vector<Chunk *> &Vec) {
215 }219 }
216220
217 // Initially, we use hash values to partition sections.221 // Initially, we use hash values to partition sections.
218 for (SectionChunk *SC : Chunks)222 for_each(parallel::par, Chunks.begin(), Chunks.end(), [&](SectionChunk *SC) {
219 // Set MSB to 1 to avoid collisions with non-hash classs.223 // Set MSB to 1 to avoid collisions with non-hash classs.
220 SC->Class[0] = getHash(SC) | (1 << 31);224 SC->Class[0] = getHash(SC) | (1 << 31);
225 });
221226
222 // From now on, sections in Chunks are ordered so that sections in227 // From now on, sections in Chunks are ordered so that sections in
223 // the same group are consecutive in the vector.228 // the same group are consecutive in the vector.
...@@ -252,7 +257,7 @@ void ICF::run(const std::vector<Chunk *> &Vec) {...@@ -252,7 +257,7 @@ void ICF::run(const std::vector<Chunk *> &Vec) {
252}257}
253258
254// Entry point to ICF.259// Entry point to ICF.
255void doICF(const std::vector<Chunk *> &Chunks) { ICF().run(Chunks); }260void doICF(ArrayRef<Chunk *> Chunks) { ICF().run(Chunks); }
256261
257} // namespace coff262} // namespace coff
258} // namespace lld263} // namespace lld
deps/lld/COFF/InputFiles.cpp+244-150
...@@ -11,10 +11,10 @@...@@ -11,10 +11,10 @@
11#include "Chunks.h"11#include "Chunks.h"
12#include "Config.h"12#include "Config.h"
13#include "Driver.h"13#include "Driver.h"
14#include "Error.h"
15#include "Memory.h"
16#include "SymbolTable.h"14#include "SymbolTable.h"
17#include "Symbols.h"15#include "Symbols.h"
16#include "lld/Common/ErrorHandler.h"
17#include "lld/Common/Memory.h"
18#include "llvm-c/lto.h"18#include "llvm-c/lto.h"
19#include "llvm/ADT/SmallVector.h"19#include "llvm/ADT/SmallVector.h"
20#include "llvm/ADT/Triple.h"20#include "llvm/ADT/Triple.h"
...@@ -43,14 +43,18 @@ using llvm::support::ulittle32_t;...@@ -43,14 +43,18 @@ using llvm::support::ulittle32_t;
43namespace lld {43namespace lld {
44namespace coff {44namespace coff {
4545
46std::vector<ObjFile *> ObjFile::Instances;
47std::vector<ImportFile *> ImportFile::Instances;
48std::vector<BitcodeFile *> BitcodeFile::Instances;
49
46/// Checks that Source is compatible with being a weak alias to Target.50/// Checks that Source is compatible with being a weak alias to Target.
47/// If Source is Undefined and has no weak alias set, makes it a weak51/// If Source is Undefined and has no weak alias set, makes it a weak
48/// alias to Target.52/// alias to Target.
49static void checkAndSetWeakAlias(SymbolTable *Symtab, InputFile *F,53static void checkAndSetWeakAlias(SymbolTable *Symtab, InputFile *F,
50 SymbolBody *Source, SymbolBody *Target) {54 Symbol *Source, Symbol *Target) {
51 if (auto *U = dyn_cast<Undefined>(Source)) {55 if (auto *U = dyn_cast<Undefined>(Source)) {
52 if (U->WeakAlias && U->WeakAlias != Target)56 if (U->WeakAlias && U->WeakAlias != Target)
53 Symtab->reportDuplicate(Source->symbol(), F);57 Symtab->reportDuplicate(Source, F);
54 U->WeakAlias = Target;58 U->WeakAlias = Target;
55 }59 }
56}60}
...@@ -59,7 +63,7 @@ ArchiveFile::ArchiveFile(MemoryBufferRef M) : InputFile(ArchiveKind, M) {}...@@ -59,7 +63,7 @@ ArchiveFile::ArchiveFile(MemoryBufferRef M) : InputFile(ArchiveKind, M) {}
5963
60void ArchiveFile::parse() {64void ArchiveFile::parse() {
61 // Parse a MemoryBufferRef as an archive file.65 // Parse a MemoryBufferRef as an archive file.
62 File = check(Archive::create(MB), toString(this));66 File = CHECK(Archive::create(MB), this);
6367
64 // Read the symbol table to construct Lazy objects.68 // Read the symbol table to construct Lazy objects.
65 for (const Archive::Symbol &Sym : File->symbols())69 for (const Archive::Symbol &Sym : File->symbols())
...@@ -69,7 +73,7 @@ void ArchiveFile::parse() {...@@ -69,7 +73,7 @@ void ArchiveFile::parse() {
69// Returns a buffer pointing to a member file containing a given symbol.73// Returns a buffer pointing to a member file containing a given symbol.
70void ArchiveFile::addMember(const Archive::Symbol *Sym) {74void ArchiveFile::addMember(const Archive::Symbol *Sym) {
71 const Archive::Child &C =75 const Archive::Child &C =
72 check(Sym->getMember(),76 CHECK(Sym->getMember(),
73 "could not get the member for symbol " + Sym->getName());77 "could not get the member for symbol " + Sym->getName());
7478
75 // Return an empty buffer if we have already returned the same buffer.79 // Return an empty buffer if we have already returned the same buffer.
...@@ -79,9 +83,28 @@ void ArchiveFile::addMember(const Archive::Symbol *Sym) {...@@ -79,9 +83,28 @@ void ArchiveFile::addMember(const Archive::Symbol *Sym) {
79 Driver->enqueueArchiveMember(C, Sym->getName(), getName());83 Driver->enqueueArchiveMember(C, Sym->getName(), getName());
80}84}
8185
82void ObjectFile::parse() {86std::vector<MemoryBufferRef> getArchiveMembers(Archive *File) {
87 std::vector<MemoryBufferRef> V;
88 Error Err = Error::success();
89 for (const ErrorOr<Archive::Child> &COrErr : File->children(Err)) {
90 Archive::Child C =
91 CHECK(COrErr,
92 File->getFileName() + ": could not get the child of the archive");
93 MemoryBufferRef MBRef =
94 CHECK(C.getMemoryBufferRef(),
95 File->getFileName() +
96 ": could not get the buffer for a child of the archive");
97 V.push_back(MBRef);
98 }
99 if (Err)
100 fatal(File->getFileName() +
101 ": Archive::children failed: " + toString(std::move(Err)));
102 return V;
103}
104
105void ObjFile::parse() {
83 // Parse a memory buffer as a COFF file.106 // Parse a memory buffer as a COFF file.
84 std::unique_ptr<Binary> Bin = check(createBinary(MB), toString(this));107 std::unique_ptr<Binary> Bin = CHECK(createBinary(MB), this);
85108
86 if (auto *Obj = dyn_cast<COFFObjectFile>(Bin.get())) {109 if (auto *Obj = dyn_cast<COFFObjectFile>(Bin.get())) {
87 Bin.release();110 Bin.release();
...@@ -93,114 +116,184 @@ void ObjectFile::parse() {...@@ -93,114 +116,184 @@ void ObjectFile::parse() {
93 // Read section and symbol tables.116 // Read section and symbol tables.
94 initializeChunks();117 initializeChunks();
95 initializeSymbols();118 initializeSymbols();
96 initializeSEH();
97}119}
98120
99void ObjectFile::initializeChunks() {121// We set SectionChunk pointers in the SparseChunks vector to this value
122// temporarily to mark comdat sections as having an unknown resolution. As we
123// walk the object file's symbol table, once we visit either a leader symbol or
124// an associative section definition together with the parent comdat's leader,
125// we set the pointer to either nullptr (to mark the section as discarded) or a
126// valid SectionChunk for that section.
127static SectionChunk *const PendingComdat = reinterpret_cast<SectionChunk *>(1);
128
129void ObjFile::initializeChunks() {
100 uint32_t NumSections = COFFObj->getNumberOfSections();130 uint32_t NumSections = COFFObj->getNumberOfSections();
101 Chunks.reserve(NumSections);131 Chunks.reserve(NumSections);
102 SparseChunks.resize(NumSections + 1);132 SparseChunks.resize(NumSections + 1);
103 for (uint32_t I = 1; I < NumSections + 1; ++I) {133 for (uint32_t I = 1; I < NumSections + 1; ++I) {
104 const coff_section *Sec;134 const coff_section *Sec;
105 StringRef Name;
106 if (auto EC = COFFObj->getSection(I, Sec))135 if (auto EC = COFFObj->getSection(I, Sec))
107 fatal(EC, "getSection failed: #" + Twine(I));136 fatal("getSection failed: #" + Twine(I) + ": " + EC.message());
108 if (auto EC = COFFObj->getSectionName(Sec, Name))
109 fatal(EC, "getSectionName failed: #" + Twine(I));
110 if (Name == ".sxdata") {
111 SXData = Sec;
112 continue;
113 }
114 if (Name == ".drectve") {
115 ArrayRef<uint8_t> Data;
116 COFFObj->getSectionContents(Sec, Data);
117 Directives = std::string((const char *)Data.data(), Data.size());
118 continue;
119 }
120137
121 // Object files may have DWARF debug info or MS CodeView debug info138 if (Sec->Characteristics & IMAGE_SCN_LNK_COMDAT)
122 // (or both).139 SparseChunks[I] = PendingComdat;
123 //
124 // DWARF sections don't need any special handling from the perspective
125 // of the linker; they are just a data section containing relocations.
126 // We can just link them to complete debug info.
127 //
128 // CodeView needs a linker support. We need to interpret and debug
129 // info, and then write it to a separate .pdb file.
130
131 // Ignore debug info unless /debug is given.
132 if (!Config->Debug && Name.startswith(".debug"))
133 continue;
134
135 if (Sec->Characteristics & llvm::COFF::IMAGE_SCN_LNK_REMOVE)
136 continue;
137 auto *C = make<SectionChunk>(this, Sec);
138
139 // CodeView sections are stored to a different vector because they are not
140 // linked in the regular manner.
141 if (C->isCodeView())
142 DebugChunks.push_back(C);
143 else140 else
144 Chunks.push_back(C);141 SparseChunks[I] = readSection(I, nullptr);
142 }
143}
145144
146 SparseChunks[I] = C;145SectionChunk *ObjFile::readSection(uint32_t SectionNumber,
146 const coff_aux_section_definition *Def) {
147 const coff_section *Sec;
148 StringRef Name;
149 if (auto EC = COFFObj->getSection(SectionNumber, Sec))
150 fatal("getSection failed: #" + Twine(SectionNumber) + ": " + EC.message());
151 if (auto EC = COFFObj->getSectionName(Sec, Name))
152 fatal("getSectionName failed: #" + Twine(SectionNumber) + ": " +
153 EC.message());
154 if (Name == ".sxdata") {
155 ArrayRef<uint8_t> Data;
156 COFFObj->getSectionContents(Sec, Data);
157 if (Data.size() % 4 != 0)
158 fatal(".sxdata must be an array of symbol table indices");
159 SXData = {reinterpret_cast<const ulittle32_t *>(Data.data()),
160 Data.size() / 4};
161 return nullptr;
162 }
163 if (Name == ".drectve") {
164 ArrayRef<uint8_t> Data;
165 COFFObj->getSectionContents(Sec, Data);
166 Directives = std::string((const char *)Data.data(), Data.size());
167 return nullptr;
147 }168 }
169
170 // Object files may have DWARF debug info or MS CodeView debug info
171 // (or both).
172 //
173 // DWARF sections don't need any special handling from the perspective
174 // of the linker; they are just a data section containing relocations.
175 // We can just link them to complete debug info.
176 //
177 // CodeView needs a linker support. We need to interpret and debug
178 // info, and then write it to a separate .pdb file.
179
180 // Ignore debug info unless /debug is given.
181 if (!Config->Debug && Name.startswith(".debug"))
182 return nullptr;
183
184 if (Sec->Characteristics & llvm::COFF::IMAGE_SCN_LNK_REMOVE)
185 return nullptr;
186 auto *C = make<SectionChunk>(this, Sec);
187 if (Def)
188 C->Checksum = Def->CheckSum;
189
190 // CodeView sections are stored to a different vector because they are not
191 // linked in the regular manner.
192 if (C->isCodeView())
193 DebugChunks.push_back(C);
194 else
195 Chunks.push_back(C);
196
197 return C;
148}198}
149199
150void ObjectFile::initializeSymbols() {200void ObjFile::readAssociativeDefinition(
201 COFFSymbolRef Sym, const coff_aux_section_definition *Def) {
202 SectionChunk *Parent = SparseChunks[Def->getNumber(Sym.isBigObj())];
203
204 // If the parent is pending, it probably means that its section definition
205 // appears after us in the symbol table. Leave the associated section as
206 // pending; we will handle it during the second pass in initializeSymbols().
207 if (Parent == PendingComdat)
208 return;
209
210 // Check whether the parent is prevailing. If it is, so are we, and we read
211 // the section; otherwise mark it as discarded.
212 int32_t SectionNumber = Sym.getSectionNumber();
213 if (Parent) {
214 SparseChunks[SectionNumber] = readSection(SectionNumber, Def);
215 if (SparseChunks[SectionNumber])
216 Parent->addAssociative(SparseChunks[SectionNumber]);
217 } else {
218 SparseChunks[SectionNumber] = nullptr;
219 }
220}
221
222Symbol *ObjFile::createRegular(COFFSymbolRef Sym) {
223 SectionChunk *SC = SparseChunks[Sym.getSectionNumber()];
224 if (Sym.isExternal()) {
225 StringRef Name;
226 COFFObj->getSymbolName(Sym, Name);
227 if (SC)
228 return Symtab->addRegular(this, Name, Sym.getGeneric(), SC);
229 return Symtab->addUndefined(Name, this, false);
230 }
231 if (SC)
232 return make<DefinedRegular>(this, /*Name*/ "", false,
233 /*IsExternal*/ false, Sym.getGeneric(), SC);
234 return nullptr;
235}
236
237void ObjFile::initializeSymbols() {
151 uint32_t NumSymbols = COFFObj->getNumberOfSymbols();238 uint32_t NumSymbols = COFFObj->getNumberOfSymbols();
152 SymbolBodies.reserve(NumSymbols);239 Symbols.resize(NumSymbols);
153 SparseSymbolBodies.resize(NumSymbols);
154240
155 SmallVector<std::pair<SymbolBody *, uint32_t>, 8> WeakAliases;241 SmallVector<std::pair<Symbol *, uint32_t>, 8> WeakAliases;
156 int32_t LastSectionNumber = 0;242 std::vector<uint32_t> PendingIndexes;
243 PendingIndexes.reserve(NumSymbols);
244
245 std::vector<const coff_aux_section_definition *> ComdatDefs(
246 COFFObj->getNumberOfSections() + 1);
157247
158 for (uint32_t I = 0; I < NumSymbols; ++I) {248 for (uint32_t I = 0; I < NumSymbols; ++I) {
159 // Get a COFFSymbolRef object.249 COFFSymbolRef COFFSym = check(COFFObj->getSymbol(I));
160 ErrorOr<COFFSymbolRef> SymOrErr = COFFObj->getSymbol(I);250 if (COFFSym.isUndefined()) {
161 if (!SymOrErr)251 Symbols[I] = createUndefined(COFFSym);
162 fatal(SymOrErr.getError(), "broken object file: " + toString(this));252 } else if (COFFSym.isWeakExternal()) {
163 COFFSymbolRef Sym = *SymOrErr;253 Symbols[I] = createUndefined(COFFSym);
164254 uint32_t TagIndex = COFFSym.getAux<coff_aux_weak_external>()->TagIndex;
165 const void *AuxP = nullptr;255 WeakAliases.emplace_back(Symbols[I], TagIndex);
166 if (Sym.getNumberOfAuxSymbols())256 } else if (Optional<Symbol *> OptSym = createDefined(COFFSym, ComdatDefs)) {
167 AuxP = COFFObj->getSymbol(I + 1)->getRawPtr();257 Symbols[I] = *OptSym;
168 bool IsFirst = (LastSectionNumber != Sym.getSectionNumber());
169
170 SymbolBody *Body = nullptr;
171 if (Sym.isUndefined()) {
172 Body = createUndefined(Sym);
173 } else if (Sym.isWeakExternal()) {
174 Body = createUndefined(Sym);
175 uint32_t TagIndex =
176 static_cast<const coff_aux_weak_external *>(AuxP)->TagIndex;
177 WeakAliases.emplace_back(Body, TagIndex);
178 } else {258 } else {
179 Body = createDefined(Sym, AuxP, IsFirst);259 // createDefined() returns None if a symbol belongs to a section that
180 }260 // was pending at the point when the symbol was read. This can happen in
181 if (Body) {261 // two cases:
182 SymbolBodies.push_back(Body);262 // 1) section definition symbol for a comdat leader;
183 SparseSymbolBodies[I] = Body;263 // 2) symbol belongs to a comdat section associated with a section whose
264 // section definition symbol appears later in the symbol table.
265 // In both of these cases, we can expect the section to be resolved by
266 // the time we finish visiting the remaining symbols in the symbol
267 // table. So we postpone the handling of this symbol until that time.
268 PendingIndexes.push_back(I);
184 }269 }
185 I += Sym.getNumberOfAuxSymbols();270 I += COFFSym.getNumberOfAuxSymbols();
186 LastSectionNumber = Sym.getSectionNumber();271 }
272
273 for (uint32_t I : PendingIndexes) {
274 COFFSymbolRef Sym = check(COFFObj->getSymbol(I));
275 if (auto *Def = Sym.getSectionDefinition())
276 if (Def->Selection == IMAGE_COMDAT_SELECT_ASSOCIATIVE)
277 readAssociativeDefinition(Sym, Def);
278 Symbols[I] = createRegular(Sym);
187 }279 }
188280
189 for (auto &KV : WeakAliases) {281 for (auto &KV : WeakAliases) {
190 SymbolBody *Sym = KV.first;282 Symbol *Sym = KV.first;
191 uint32_t Idx = KV.second;283 uint32_t Idx = KV.second;
192 checkAndSetWeakAlias(Symtab, this, Sym, SparseSymbolBodies[Idx]);284 checkAndSetWeakAlias(Symtab, this, Sym, Symbols[Idx]);
193 }285 }
194}286}
195287
196SymbolBody *ObjectFile::createUndefined(COFFSymbolRef Sym) {288Symbol *ObjFile::createUndefined(COFFSymbolRef Sym) {
197 StringRef Name;289 StringRef Name;
198 COFFObj->getSymbolName(Sym, Name);290 COFFObj->getSymbolName(Sym, Name);
199 return Symtab->addUndefined(Name, this, Sym.isWeakExternal())->body();291 return Symtab->addUndefined(Name, this, Sym.isWeakExternal());
200}292}
201293
202SymbolBody *ObjectFile::createDefined(COFFSymbolRef Sym, const void *AuxP,294Optional<Symbol *> ObjFile::createDefined(
203 bool IsFirst) {295 COFFSymbolRef Sym,
296 std::vector<const coff_aux_section_definition *> &ComdatDefs) {
204 StringRef Name;297 StringRef Name;
205 if (Sym.isCommon()) {298 if (Sym.isCommon()) {
206 auto *C = make<CommonChunk>(Sym);299 auto *C = make<CommonChunk>(Sym);
...@@ -208,7 +301,7 @@ SymbolBody *ObjectFile::createDefined(COFFSymbolRef Sym, const void *AuxP,...@@ -208,7 +301,7 @@ SymbolBody *ObjectFile::createDefined(COFFSymbolRef Sym, const void *AuxP,
208 COFFObj->getSymbolName(Sym, Name);301 COFFObj->getSymbolName(Sym, Name);
209 Symbol *S =302 Symbol *S =
210 Symtab->addCommon(this, Name, Sym.getValue(), Sym.getGeneric(), C);303 Symtab->addCommon(this, Name, Sym.getValue(), Sym.getGeneric(), C);
211 return S->body();304 return S;
212 }305 }
213 if (Sym.isAbsolute()) {306 if (Sym.isAbsolute()) {
214 COFFObj->getSymbolName(Sym, Name);307 COFFObj->getSymbolName(Sym, Name);
...@@ -222,7 +315,7 @@ SymbolBody *ObjectFile::createDefined(COFFSymbolRef Sym, const void *AuxP,...@@ -222,7 +315,7 @@ SymbolBody *ObjectFile::createDefined(COFFSymbolRef Sym, const void *AuxP,
222 return nullptr;315 return nullptr;
223 }316 }
224 if (Sym.isExternal())317 if (Sym.isExternal())
225 return Symtab->addAbsolute(Name, Sym)->body();318 return Symtab->addAbsolute(Name, Sym);
226 else319 else
227 return make<DefinedAbsolute>(Name, Sym);320 return make<DefinedAbsolute>(Name, Sym);
228 }321 }
...@@ -239,54 +332,49 @@ SymbolBody *ObjectFile::createDefined(COFFSymbolRef Sym, const void *AuxP,...@@ -239,54 +332,49 @@ SymbolBody *ObjectFile::createDefined(COFFSymbolRef Sym, const void *AuxP,
239 if ((uint32_t)SectionNumber >= SparseChunks.size())332 if ((uint32_t)SectionNumber >= SparseChunks.size())
240 fatal("broken object file: " + toString(this));333 fatal("broken object file: " + toString(this));
241334
242 // Nothing else to do without a section chunk.335 // Handle comdat leader symbols.
243 auto *SC = cast_or_null<SectionChunk>(SparseChunks[SectionNumber]);336 if (const coff_aux_section_definition *Def = ComdatDefs[SectionNumber]) {
244 if (!SC)337 ComdatDefs[SectionNumber] = nullptr;
245 return nullptr;338 Symbol *Leader;
246339 bool Prevailing;
247 // Handle section definitions340 if (Sym.isExternal()) {
248 if (IsFirst && AuxP) {341 COFFObj->getSymbolName(Sym, Name);
249 auto *Aux = reinterpret_cast<const coff_aux_section_definition *>(AuxP);342 std::tie(Leader, Prevailing) =
250 if (Aux->Selection == IMAGE_COMDAT_SELECT_ASSOCIATIVE)343 Symtab->addComdat(this, Name, Sym.getGeneric());
251 if (auto *ParentSC = cast_or_null<SectionChunk>(344 } else {
252 SparseChunks[Aux->getNumber(Sym.isBigObj())])) {345 Leader = make<DefinedRegular>(this, /*Name*/ "", false,
253 ParentSC->addAssociative(SC);346 /*IsExternal*/ false, Sym.getGeneric());
254 // If we already discarded the parent, discard the child.347 Prevailing = true;
255 if (ParentSC->isDiscarded())348 }
256 SC->markDiscarded();349 if (Prevailing) {
257 }350 SectionChunk *C = readSection(SectionNumber, Def);
258 SC->Checksum = Aux->CheckSum;351 SparseChunks[SectionNumber] = C;
352 C->Sym = cast<DefinedRegular>(Leader);
353 cast<DefinedRegular>(Leader)->Data = &C->Repl;
354 } else {
355 SparseChunks[SectionNumber] = nullptr;
356 }
357 return Leader;
259 }358 }
260359
261 DefinedRegular *B;360 // Read associative section definitions and prepare to handle the comdat
262 if (Sym.isExternal()) {361 // leader symbol by setting the section's ComdatDefs pointer if we encounter a
263 COFFObj->getSymbolName(Sym, Name);362 // non-associative comdat.
264 Symbol *S =363 if (SparseChunks[SectionNumber] == PendingComdat) {
265 Symtab->addRegular(this, Name, SC->isCOMDAT(), Sym.getGeneric(), SC);364 if (auto *Def = Sym.getSectionDefinition()) {
266 B = cast<DefinedRegular>(S->body());365 if (Def->Selection == IMAGE_COMDAT_SELECT_ASSOCIATIVE)
267 } else366 readAssociativeDefinition(Sym, Def);
268 B = make<DefinedRegular>(this, /*Name*/ "", SC->isCOMDAT(),367 else
269 /*IsExternal*/ false, Sym.getGeneric(), SC);368 ComdatDefs[SectionNumber] = Def;
270 if (SC->isCOMDAT() && Sym.getValue() == 0 && !AuxP)369 }
271 SC->setSymbol(B);370 }
272
273 return B;
274}
275371
276void ObjectFile::initializeSEH() {372 if (SparseChunks[SectionNumber] == PendingComdat)
277 if (!SEHCompat || !SXData)373 return None;
278 return;374 return createRegular(Sym);
279 ArrayRef<uint8_t> A;
280 COFFObj->getSectionContents(SXData, A);
281 if (A.size() % 4 != 0)
282 fatal(".sxdata must be an array of symbol table indices");
283 auto *I = reinterpret_cast<const ulittle32_t *>(A.data());
284 auto *E = reinterpret_cast<const ulittle32_t *>(A.data() + A.size());
285 for (; I != E; ++I)
286 SEHandlers.insert(SparseSymbolBodies[*I]);
287}375}
288376
289MachineTypes ObjectFile::getMachineType() {377MachineTypes ObjFile::getMachineType() {
290 if (COFFObj)378 if (COFFObj)
291 return static_cast<MachineTypes>(COFFObj->getMachine());379 return static_cast<MachineTypes>(COFFObj->getMachine());
292 return IMAGE_FILE_MACHINE_UNKNOWN;380 return IMAGE_FILE_MACHINE_UNKNOWN;
...@@ -332,26 +420,27 @@ void ImportFile::parse() {...@@ -332,26 +420,27 @@ void ImportFile::parse() {
332 this->Hdr = Hdr;420 this->Hdr = Hdr;
333 ExternalName = ExtName;421 ExternalName = ExtName;
334422
335 ImpSym = cast<DefinedImportData>(423 ImpSym = Symtab->addImportData(ImpName, this);
336 Symtab->addImportData(ImpName, this)->body());424
337 if (Hdr->getType() == llvm::COFF::IMPORT_CONST)425 if (Hdr->getType() == llvm::COFF::IMPORT_CONST)
338 ConstSym =426 static_cast<void>(Symtab->addImportData(Name, this));
339 cast<DefinedImportData>(Symtab->addImportData(Name, this)->body());
340427
341 // If type is function, we need to create a thunk which jump to an428 // If type is function, we need to create a thunk which jump to an
342 // address pointed by the __imp_ symbol. (This allows you to call429 // address pointed by the __imp_ symbol. (This allows you to call
343 // DLL functions just like regular non-DLL functions.)430 // DLL functions just like regular non-DLL functions.)
344 if (Hdr->getType() != llvm::COFF::IMPORT_CODE)431 if (Hdr->getType() == llvm::COFF::IMPORT_CODE)
345 return;432 ThunkSym = Symtab->addImportThunk(Name, ImpSym, Hdr->Machine);
346 ThunkSym = cast<DefinedImportThunk>(
347 Symtab->addImportThunk(Name, ImpSym, Hdr->Machine)->body());
348}433}
349434
350void BitcodeFile::parse() {435void BitcodeFile::parse() {
351 Obj = check(lto::InputFile::create(MemoryBufferRef(436 Obj = check(lto::InputFile::create(MemoryBufferRef(
352 MB.getBuffer(), Saver.save(ParentName + MB.getBufferIdentifier()))));437 MB.getBuffer(), Saver.save(ParentName + MB.getBufferIdentifier()))));
438 std::vector<std::pair<Symbol *, bool>> Comdat(Obj->getComdatTable().size());
439 for (size_t I = 0; I != Obj->getComdatTable().size(); ++I)
440 Comdat[I] = Symtab->addComdat(this, Saver.save(Obj->getComdatTable()[I]));
353 for (const lto::InputFile::Symbol &ObjSym : Obj->symbols()) {441 for (const lto::InputFile::Symbol &ObjSym : Obj->symbols()) {
354 StringRef SymName = Saver.save(ObjSym.getName());442 StringRef SymName = Saver.save(ObjSym.getName());
443 int ComdatIndex = ObjSym.getComdatIndex();
355 Symbol *Sym;444 Symbol *Sym;
356 if (ObjSym.isUndefined()) {445 if (ObjSym.isUndefined()) {
357 Sym = Symtab->addUndefined(SymName, this, false);446 Sym = Symtab->addUndefined(SymName, this, false);
...@@ -361,13 +450,19 @@ void BitcodeFile::parse() {...@@ -361,13 +450,19 @@ void BitcodeFile::parse() {
361 // Weak external.450 // Weak external.
362 Sym = Symtab->addUndefined(SymName, this, true);451 Sym = Symtab->addUndefined(SymName, this, true);
363 std::string Fallback = ObjSym.getCOFFWeakExternalFallback();452 std::string Fallback = ObjSym.getCOFFWeakExternalFallback();
364 SymbolBody *Alias = Symtab->addUndefined(Saver.save(Fallback));453 Symbol *Alias = Symtab->addUndefined(Saver.save(Fallback));
365 checkAndSetWeakAlias(Symtab, this, Sym->body(), Alias);454 checkAndSetWeakAlias(Symtab, this, Sym, Alias);
455 } else if (ComdatIndex != -1) {
456 if (SymName == Obj->getComdatTable()[ComdatIndex])
457 Sym = Comdat[ComdatIndex].first;
458 else if (Comdat[ComdatIndex].second)
459 Sym = Symtab->addRegular(this, SymName);
460 else
461 Sym = Symtab->addUndefined(SymName, this, false);
366 } else {462 } else {
367 bool IsCOMDAT = ObjSym.getComdatIndex() != -1;463 Sym = Symtab->addRegular(this, SymName);
368 Sym = Symtab->addRegular(this, SymName, IsCOMDAT);
369 }464 }
370 SymbolBodies.push_back(Sym->body());465 SymbolBodies.push_back(Sym);
371 }466 }
372 Directives = Obj->getCOFFLinkerOpts();467 Directives = Obj->getCOFFLinkerOpts();
373}468}
...@@ -398,14 +493,13 @@ static StringRef getBasename(StringRef Path) {...@@ -398,14 +493,13 @@ static StringRef getBasename(StringRef Path) {
398}493}
399494
400// Returns a string in the format of "foo.obj" or "foo.obj(bar.lib)".495// Returns a string in the format of "foo.obj" or "foo.obj(bar.lib)".
401std::string lld::toString(coff::InputFile *File) {496std::string lld::toString(const coff::InputFile *File) {
402 if (!File)497 if (!File)
403 return "(internal)";498 return "<internal>";
404 if (File->ParentName.empty())499 if (File->ParentName.empty())
405 return File->getName().lower();500 return File->getName();
406501
407 std::string Res =502 return (getBasename(File->ParentName) + "(" + getBasename(File->getName()) +
408 (getBasename(File->ParentName) + "(" + getBasename(File->getName()) + ")")503 ")")
409 .str();504 .str();
410 return StringRef(Res).lower();
411}505}
deps/lld/COFF/InputFiles.h+41-29
...@@ -11,7 +11,7 @@...@@ -11,7 +11,7 @@
11#define LLD_COFF_INPUT_FILES_H11#define LLD_COFF_INPUT_FILES_H
1212
13#include "Config.h"13#include "Config.h"
14#include "lld/Core/LLVM.h"14#include "lld/Common/LLVM.h"
15#include "llvm/ADT/ArrayRef.h"15#include "llvm/ADT/ArrayRef.h"
16#include "llvm/ADT/DenseSet.h"16#include "llvm/ADT/DenseSet.h"
17#include "llvm/LTO/LTO.h"17#include "llvm/LTO/LTO.h"
...@@ -31,6 +31,8 @@ class DbiModuleDescriptorBuilder;...@@ -31,6 +31,8 @@ class DbiModuleDescriptorBuilder;
31namespace lld {31namespace lld {
32namespace coff {32namespace coff {
3333
34std::vector<MemoryBufferRef> getArchiveMembers(llvm::object::Archive *File);
35
34using llvm::COFF::IMAGE_FILE_MACHINE_UNKNOWN;36using llvm::COFF::IMAGE_FILE_MACHINE_UNKNOWN;
35using llvm::COFF::MachineTypes;37using llvm::COFF::MachineTypes;
36using llvm::object::Archive;38using llvm::object::Archive;
...@@ -45,8 +47,7 @@ class DefinedImportData;...@@ -45,8 +47,7 @@ class DefinedImportData;
45class DefinedImportThunk;47class DefinedImportThunk;
46class Lazy;48class Lazy;
47class SectionChunk;49class SectionChunk;
48struct Symbol;50class Symbol;
49class SymbolBody;
50class Undefined;51class Undefined;
5152
52// The root class of input files.53// The root class of input files.
...@@ -57,7 +58,7 @@ public:...@@ -57,7 +58,7 @@ public:
57 virtual ~InputFile() {}58 virtual ~InputFile() {}
5859
59 // Returns the filename.60 // Returns the filename.
60 StringRef getName() { return MB.getBufferIdentifier(); }61 StringRef getName() const { return MB.getBufferIdentifier(); }
6162
62 // Reads a file (the constructor doesn't do that).63 // Reads a file (the constructor doesn't do that).
63 virtual void parse() = 0;64 virtual void parse() = 0;
...@@ -101,32 +102,34 @@ private:...@@ -101,32 +102,34 @@ private:
101};102};
102103
103// .obj or .o file. This may be a member of an archive file.104// .obj or .o file. This may be a member of an archive file.
104class ObjectFile : public InputFile {105class ObjFile : public InputFile {
105public:106public:
106 explicit ObjectFile(MemoryBufferRef M) : InputFile(ObjectKind, M) {}107 explicit ObjFile(MemoryBufferRef M) : InputFile(ObjectKind, M) {}
107 static bool classof(const InputFile *F) { return F->kind() == ObjectKind; }108 static bool classof(const InputFile *F) { return F->kind() == ObjectKind; }
108 void parse() override;109 void parse() override;
109 MachineTypes getMachineType() override;110 MachineTypes getMachineType() override;
110 std::vector<Chunk *> &getChunks() { return Chunks; }111 ArrayRef<Chunk *> getChunks() { return Chunks; }
111 std::vector<SectionChunk *> &getDebugChunks() { return DebugChunks; }112 ArrayRef<SectionChunk *> getDebugChunks() { return DebugChunks; }
112 std::vector<SymbolBody *> &getSymbols() { return SymbolBodies; }113 ArrayRef<Symbol *> getSymbols() { return Symbols; }
113114
114 // Returns a SymbolBody object for the SymbolIndex'th symbol in the115 // Returns a Symbol object for the SymbolIndex'th symbol in the
115 // underlying object file.116 // underlying object file.
116 SymbolBody *getSymbolBody(uint32_t SymbolIndex) {117 Symbol *getSymbol(uint32_t SymbolIndex) {
117 return SparseSymbolBodies[SymbolIndex];118 return Symbols[SymbolIndex];
118 }119 }
119120
120 // Returns the underying COFF file.121 // Returns the underying COFF file.
121 COFFObjectFile *getCOFFObj() { return COFFObj.get(); }122 COFFObjectFile *getCOFFObj() { return COFFObj.get(); }
122123
124 static std::vector<ObjFile *> Instances;
125
123 // True if this object file is compatible with SEH.126 // True if this object file is compatible with SEH.
124 // COFF-specific and x86-only.127 // COFF-specific and x86-only.
125 bool SEHCompat = false;128 bool SEHCompat = false;
126129
127 // The list of safe exception handlers listed in .sxdata section.130 // The symbol table indexes of the safe exception handlers.
128 // COFF-specific and x86-only.131 // COFF-specific and x86-only.
129 std::set<SymbolBody *> SEHandlers;132 ArrayRef<llvm::support::ulittle32_t> SXData;
130133
131 // Pointer to the PDB module descriptor builder. Various debug info records134 // Pointer to the PDB module descriptor builder. Various debug info records
132 // will reference object files by "module index", which is here. Things like135 // will reference object files by "module index", which is here. Things like
...@@ -137,13 +140,23 @@ public:...@@ -137,13 +140,23 @@ public:
137private:140private:
138 void initializeChunks();141 void initializeChunks();
139 void initializeSymbols();142 void initializeSymbols();
140 void initializeSEH();
141143
142 SymbolBody *createDefined(COFFSymbolRef Sym, const void *Aux, bool IsFirst);144 SectionChunk *
143 SymbolBody *createUndefined(COFFSymbolRef Sym);145 readSection(uint32_t SectionNumber,
146 const llvm::object::coff_aux_section_definition *Def);
147
148 void readAssociativeDefinition(
149 COFFSymbolRef COFFSym,
150 const llvm::object::coff_aux_section_definition *Def);
151
152 llvm::Optional<Symbol *>
153 createDefined(COFFSymbolRef Sym,
154 std::vector<const llvm::object::coff_aux_section_definition *>
155 &ComdatDefs);
156 Symbol *createRegular(COFFSymbolRef Sym);
157 Symbol *createUndefined(COFFSymbolRef Sym);
144158
145 std::unique_ptr<COFFObjectFile> COFFObj;159 std::unique_ptr<COFFObjectFile> COFFObj;
146 const coff_section *SXData = nullptr;
147160
148 // List of all chunks defined by this file. This includes both section161 // List of all chunks defined by this file. This includes both section
149 // chunks and non-section chunks for common symbols.162 // chunks and non-section chunks for common symbols.
...@@ -157,16 +170,13 @@ private:...@@ -157,16 +170,13 @@ private:
157 // Nonexistent section indices are filled with null pointers.170 // Nonexistent section indices are filled with null pointers.
158 // (Because section number is 1-based, the first slot is always a171 // (Because section number is 1-based, the first slot is always a
159 // null pointer.)172 // null pointer.)
160 std::vector<Chunk *> SparseChunks;173 std::vector<SectionChunk *> SparseChunks;
161
162 // List of all symbols referenced or defined by this file.
163 std::vector<SymbolBody *> SymbolBodies;
164174
165 // This vector contains the same symbols as SymbolBodies, but they175 // This vector contains a list of all symbols defined or referenced by this
166 // are indexed such that you can get a SymbolBody by symbol176 // file. They are indexed such that you can get a Symbol by symbol
167 // index. Nonexistent indices (which are occupied by auxiliary177 // index. Nonexistent indices (which are occupied by auxiliary
168 // symbols in the real symbol table) are filled with null pointers.178 // symbols in the real symbol table) are filled with null pointers.
169 std::vector<SymbolBody *> SparseSymbolBodies;179 std::vector<Symbol *> Symbols;
170};180};
171181
172// This type represents import library members that contain DLL names182// This type represents import library members that contain DLL names
...@@ -179,8 +189,9 @@ public:...@@ -179,8 +189,9 @@ public:
179189
180 static bool classof(const InputFile *F) { return F->kind() == ImportKind; }190 static bool classof(const InputFile *F) { return F->kind() == ImportKind; }
181191
192 static std::vector<ImportFile *> Instances;
193
182 DefinedImportData *ImpSym = nullptr;194 DefinedImportData *ImpSym = nullptr;
183 DefinedImportData *ConstSym = nullptr;
184 DefinedImportThunk *ThunkSym = nullptr;195 DefinedImportThunk *ThunkSym = nullptr;
185 std::string DLLName;196 std::string DLLName;
186197
...@@ -206,18 +217,19 @@ class BitcodeFile : public InputFile {...@@ -206,18 +217,19 @@ class BitcodeFile : public InputFile {
206public:217public:
207 explicit BitcodeFile(MemoryBufferRef M) : InputFile(BitcodeKind, M) {}218 explicit BitcodeFile(MemoryBufferRef M) : InputFile(BitcodeKind, M) {}
208 static bool classof(const InputFile *F) { return F->kind() == BitcodeKind; }219 static bool classof(const InputFile *F) { return F->kind() == BitcodeKind; }
209 std::vector<SymbolBody *> &getSymbols() { return SymbolBodies; }220 ArrayRef<Symbol *> getSymbols() { return SymbolBodies; }
210 MachineTypes getMachineType() override;221 MachineTypes getMachineType() override;
222 static std::vector<BitcodeFile *> Instances;
211 std::unique_ptr<llvm::lto::InputFile> Obj;223 std::unique_ptr<llvm::lto::InputFile> Obj;
212224
213private:225private:
214 void parse() override;226 void parse() override;
215227
216 std::vector<SymbolBody *> SymbolBodies;228 std::vector<Symbol *> SymbolBodies;
217};229};
218} // namespace coff230} // namespace coff
219231
220std::string toString(coff::InputFile *File);232std::string toString(const coff::InputFile *File);
221} // namespace lld233} // namespace lld
222234
223#endif235#endif
deps/lld/COFF/LTO.cpp+42-19
...@@ -9,15 +9,16 @@...@@ -9,15 +9,16 @@
99
10#include "LTO.h"10#include "LTO.h"
11#include "Config.h"11#include "Config.h"
12#include "Error.h"
13#include "InputFiles.h"12#include "InputFiles.h"
14#include "Symbols.h"13#include "Symbols.h"
15#include "lld/Core/TargetOptionsCommandFlags.h"14#include "lld/Common/ErrorHandler.h"
15#include "lld/Common/TargetOptionsCommandFlags.h"
16#include "llvm/ADT/STLExtras.h"16#include "llvm/ADT/STLExtras.h"
17#include "llvm/ADT/SmallString.h"17#include "llvm/ADT/SmallString.h"
18#include "llvm/ADT/StringRef.h"18#include "llvm/ADT/StringRef.h"
19#include "llvm/ADT/Twine.h"19#include "llvm/ADT/Twine.h"
20#include "llvm/IR/DiagnosticPrinter.h"20#include "llvm/IR/DiagnosticPrinter.h"
21#include "llvm/LTO/Caching.h"
21#include "llvm/LTO/Config.h"22#include "llvm/LTO/Config.h"
22#include "llvm/LTO/LTO.h"23#include "llvm/LTO/LTO.h"
23#include "llvm/Object/SymbolicFile.h"24#include "llvm/Object/SymbolicFile.h"
...@@ -48,10 +49,8 @@ static void diagnosticHandler(const DiagnosticInfo &DI) {...@@ -48,10 +49,8 @@ static void diagnosticHandler(const DiagnosticInfo &DI) {
48}49}
4950
50static void checkError(Error E) {51static void checkError(Error E) {
51 handleAllErrors(std::move(E), [&](ErrorInfoBase &EIB) -> Error {52 handleAllErrors(std::move(E),
52 error(EIB.message());53 [&](ErrorInfoBase &EIB) { error(EIB.message()); });
53 return Error::success();
54 });
55}54}
5655
57static void saveBuffer(StringRef Buffer, const Twine &Path) {56static void saveBuffer(StringRef Buffer, const Twine &Path) {
...@@ -65,7 +64,13 @@ static void saveBuffer(StringRef Buffer, const Twine &Path) {...@@ -65,7 +64,13 @@ static void saveBuffer(StringRef Buffer, const Twine &Path) {
65static std::unique_ptr<lto::LTO> createLTO() {64static std::unique_ptr<lto::LTO> createLTO() {
66 lto::Config Conf;65 lto::Config Conf;
67 Conf.Options = InitTargetOptionsFromCodeGenFlags();66 Conf.Options = InitTargetOptionsFromCodeGenFlags();
68 Conf.RelocModel = Reloc::PIC_;67 // Use static reloc model on 32-bit x86 because it usually results in more
68 // compact code, and because there are also known code generation bugs when
69 // using the PIC model (see PR34306).
70 if (Config->Machine == COFF::IMAGE_FILE_MACHINE_I386)
71 Conf.RelocModel = Reloc::Static;
72 else
73 Conf.RelocModel = Reloc::PIC_;
69 Conf.DisableVerify = true;74 Conf.DisableVerify = true;
70 Conf.DiagHandler = diagnosticHandler;75 Conf.DiagHandler = diagnosticHandler;
71 Conf.OptLevel = Config->LTOOptLevel;76 Conf.OptLevel = Config->LTOOptLevel;
...@@ -83,20 +88,17 @@ BitcodeCompiler::BitcodeCompiler() : LTOObj(createLTO()) {}...@@ -83,20 +88,17 @@ BitcodeCompiler::BitcodeCompiler() : LTOObj(createLTO()) {}
8388
84BitcodeCompiler::~BitcodeCompiler() = default;89BitcodeCompiler::~BitcodeCompiler() = default;
8590
86static void undefine(Symbol *S) {91static void undefine(Symbol *S) { replaceSymbol<Undefined>(S, S->getName()); }
87 replaceBody<Undefined>(S, S->body()->getName());
88}
8992
90void BitcodeCompiler::add(BitcodeFile &F) {93void BitcodeCompiler::add(BitcodeFile &F) {
91 lto::InputFile &Obj = *F.Obj;94 lto::InputFile &Obj = *F.Obj;
92 unsigned SymNum = 0;95 unsigned SymNum = 0;
93 std::vector<SymbolBody *> SymBodies = F.getSymbols();96 std::vector<Symbol *> SymBodies = F.getSymbols();
94 std::vector<lto::SymbolResolution> Resols(SymBodies.size());97 std::vector<lto::SymbolResolution> Resols(SymBodies.size());
9598
96 // Provide a resolution to the LTO API for each symbol.99 // Provide a resolution to the LTO API for each symbol.
97 for (const lto::InputFile::Symbol &ObjSym : Obj.symbols()) {100 for (const lto::InputFile::Symbol &ObjSym : Obj.symbols()) {
98 SymbolBody *B = SymBodies[SymNum];101 Symbol *Sym = SymBodies[SymNum];
99 Symbol *Sym = B->symbol();
100 lto::SymbolResolution &R = Resols[SymNum];102 lto::SymbolResolution &R = Resols[SymNum];
101 ++SymNum;103 ++SymNum;
102104
...@@ -105,7 +107,7 @@ void BitcodeCompiler::add(BitcodeFile &F) {...@@ -105,7 +107,7 @@ void BitcodeCompiler::add(BitcodeFile &F) {
105 // flags an undefined in IR with a definition in ASM as prevailing.107 // flags an undefined in IR with a definition in ASM as prevailing.
106 // Once IRObjectFile is fixed to report only one symbol this hack can108 // Once IRObjectFile is fixed to report only one symbol this hack can
107 // be removed.109 // be removed.
108 R.Prevailing = !ObjSym.isUndefined() && B->getFile() == &F;110 R.Prevailing = !ObjSym.isUndefined() && Sym->getFile() == &F;
109 R.VisibleToRegularObj = Sym->IsUsedInRegularObj;111 R.VisibleToRegularObj = Sym->IsUsedInRegularObj;
110 if (R.Prevailing)112 if (R.Prevailing)
111 undefine(Sym);113 undefine(Sym);
...@@ -118,11 +120,27 @@ void BitcodeCompiler::add(BitcodeFile &F) {...@@ -118,11 +120,27 @@ void BitcodeCompiler::add(BitcodeFile &F) {
118std::vector<StringRef> BitcodeCompiler::compile() {120std::vector<StringRef> BitcodeCompiler::compile() {
119 unsigned MaxTasks = LTOObj->getMaxTasks();121 unsigned MaxTasks = LTOObj->getMaxTasks();
120 Buff.resize(MaxTasks);122 Buff.resize(MaxTasks);
121123 Files.resize(MaxTasks);
122 checkError(LTOObj->run([&](size_t Task) {124
123 return llvm::make_unique<lto::NativeObjectStream>(125 // The /lldltocache option specifies the path to a directory in which to cache
124 llvm::make_unique<raw_svector_ostream>(Buff[Task]));126 // native object files for ThinLTO incremental builds. If a path was
125 }));127 // specified, configure LTO to use it as the cache directory.
128 lto::NativeObjectCache Cache;
129 if (!Config->LTOCache.empty())
130 Cache = check(
131 lto::localCache(Config->LTOCache,
132 [&](size_t Task, std::unique_ptr<MemoryBuffer> MB,
133 StringRef Path) { Files[Task] = std::move(MB); }));
134
135 checkError(LTOObj->run(
136 [&](size_t Task) {
137 return llvm::make_unique<lto::NativeObjectStream>(
138 llvm::make_unique<raw_svector_ostream>(Buff[Task]));
139 },
140 Cache));
141
142 if (!Config->LTOCache.empty())
143 pruneCache(Config->LTOCache, Config->LTOCachePolicy);
126144
127 std::vector<StringRef> Ret;145 std::vector<StringRef> Ret;
128 for (unsigned I = 0; I != MaxTasks; ++I) {146 for (unsigned I = 0; I != MaxTasks; ++I) {
...@@ -136,5 +154,10 @@ std::vector<StringRef> BitcodeCompiler::compile() {...@@ -136,5 +154,10 @@ std::vector<StringRef> BitcodeCompiler::compile() {
136 }154 }
137 Ret.emplace_back(Buff[I].data(), Buff[I].size());155 Ret.emplace_back(Buff[I].data(), Buff[I].size());
138 }156 }
157
158 for (std::unique_ptr<MemoryBuffer> &File : Files)
159 if (File)
160 Ret.push_back(File->getBuffer());
161
139 return Ret;162 return Ret;
140}163}
deps/lld/COFF/LTO.h+2-1
...@@ -21,7 +21,7 @@...@@ -21,7 +21,7 @@
21#ifndef LLD_COFF_LTO_H21#ifndef LLD_COFF_LTO_H
22#define LLD_COFF_LTO_H22#define LLD_COFF_LTO_H
2323
24#include "lld/Core/LLVM.h"24#include "lld/Common/LLVM.h"
25#include "llvm/ADT/SmallString.h"25#include "llvm/ADT/SmallString.h"
26#include <memory>26#include <memory>
27#include <vector>27#include <vector>
...@@ -49,6 +49,7 @@ public:...@@ -49,6 +49,7 @@ public:
49private:49private:
50 std::unique_ptr<llvm::lto::LTO> LTOObj;50 std::unique_ptr<llvm::lto::LTO> LTOObj;
51 std::vector<SmallString<0>> Buff;51 std::vector<SmallString<0>> Buff;
52 std::vector<std::unique_ptr<MemoryBuffer>> Files;
52};53};
53}54}
54}55}
deps/lld/COFF/MapFile.cpp+5-5
...@@ -20,11 +20,11 @@...@@ -20,11 +20,11 @@
20//===----------------------------------------------------------------------===//20//===----------------------------------------------------------------------===//
2121
22#include "MapFile.h"22#include "MapFile.h"
23#include "Error.h"
24#include "SymbolTable.h"23#include "SymbolTable.h"
25#include "Symbols.h"24#include "Symbols.h"
26#include "Writer.h"25#include "Writer.h"
2726
27#include "lld/Common/ErrorHandler.h"
28#include "llvm/Support/Parallel.h"28#include "llvm/Support/Parallel.h"
29#include "llvm/Support/raw_ostream.h"29#include "llvm/Support/raw_ostream.h"
3030
...@@ -48,9 +48,9 @@ static std::string indent(int Depth) { return std::string(Depth * 8, ' '); }...@@ -48,9 +48,9 @@ static std::string indent(int Depth) { return std::string(Depth * 8, ' '); }
48// Returns a list of all symbols that we want to print out.48// Returns a list of all symbols that we want to print out.
49static std::vector<DefinedRegular *> getSymbols() {49static std::vector<DefinedRegular *> getSymbols() {
50 std::vector<DefinedRegular *> V;50 std::vector<DefinedRegular *> V;
51 for (coff::ObjectFile *File : Symtab->ObjectFiles)51 for (ObjFile *File : ObjFile::Instances)
52 for (SymbolBody *B : File->getSymbols())52 for (Symbol *B : File->getSymbols())
53 if (auto *Sym = dyn_cast<DefinedRegular>(B))53 if (auto *Sym = dyn_cast_or_null<DefinedRegular>(B))
54 if (Sym && !Sym->getCOFFSymbol().isSectionDefinition())54 if (Sym && !Sym->getCOFFSymbol().isSectionDefinition())
55 V.push_back(Sym);55 V.push_back(Sym);
56 return V;56 return V;
...@@ -115,7 +115,7 @@ void coff::writeMapFile(ArrayRef<OutputSection *> OutputSections) {...@@ -115,7 +115,7 @@ void coff::writeMapFile(ArrayRef<OutputSection *> OutputSections) {
115 if (!SC)115 if (!SC)
116 continue;116 continue;
117117
118 writeHeader(OS, SC->getRVA(), SC->getSize(), SC->getAlign());118 writeHeader(OS, SC->getRVA(), SC->getSize(), SC->Alignment);
119 OS << indent(1) << SC->File->getName() << ":(" << SC->getSectionName()119 OS << indent(1) << SC->File->getName() << ":(" << SC->getSectionName()
120 << ")\n";120 << ")\n";
121 for (DefinedRegular *Sym : SectionSyms[SC])121 for (DefinedRegular *Sym : SectionSyms[SC])
deps/lld/COFF/MarkLive.cpp+6-12
...@@ -18,7 +18,7 @@ namespace coff {...@@ -18,7 +18,7 @@ namespace coff {
18// Set live bit on for each reachable chunk. Unmarked (unreachable)18// Set live bit on for each reachable chunk. Unmarked (unreachable)
19// COMDAT chunks will be ignored by Writer, so they will be excluded19// COMDAT chunks will be ignored by Writer, so they will be excluded
20// from the final output.20// from the final output.
21void markLive(const std::vector<Chunk *> &Chunks) {21void markLive(ArrayRef<Chunk *> Chunks) {
22 // We build up a worklist of sections which have been marked as live. We only22 // We build up a worklist of sections which have been marked as live. We only
23 // push into the worklist when we discover an unmarked section, and we mark23 // push into the worklist when we discover an unmarked section, and we mark
24 // as we push, so sections never appear twice in the list.24 // as we push, so sections never appear twice in the list.
...@@ -37,7 +37,7 @@ void markLive(const std::vector<Chunk *> &Chunks) {...@@ -37,7 +37,7 @@ void markLive(const std::vector<Chunk *> &Chunks) {
37 Worklist.push_back(C);37 Worklist.push_back(C);
38 };38 };
3939
40 auto AddSym = [&](SymbolBody *B) {40 auto AddSym = [&](Symbol *B) {
41 if (auto *Sym = dyn_cast<DefinedRegular>(B))41 if (auto *Sym = dyn_cast<DefinedRegular>(B))
42 Enqueue(Sym->getChunk());42 Enqueue(Sym->getChunk());
43 else if (auto *Sym = dyn_cast<DefinedImportData>(B))43 else if (auto *Sym = dyn_cast<DefinedImportData>(B))
...@@ -47,23 +47,17 @@ void markLive(const std::vector<Chunk *> &Chunks) {...@@ -47,23 +47,17 @@ void markLive(const std::vector<Chunk *> &Chunks) {
47 };47 };
4848
49 // Add GC root chunks.49 // Add GC root chunks.
50 for (SymbolBody *B : Config->GCRoot)50 for (Symbol *B : Config->GCRoot)
51 AddSym(B);51 AddSym(B);
5252
53 while (!Worklist.empty()) {53 while (!Worklist.empty()) {
54 SectionChunk *SC = Worklist.pop_back_val();54 SectionChunk *SC = Worklist.pop_back_val();
55
56 // If this section was discarded, there are relocations referring to
57 // discarded sections. Ignore these sections to avoid crashing. They will be
58 // diagnosed during relocation processing.
59 if (SC->isDiscarded())
60 continue;
61
62 assert(SC->isLive() && "We mark as live when pushing onto the worklist!");55 assert(SC->isLive() && "We mark as live when pushing onto the worklist!");
6356
64 // Mark all symbols listed in the relocation table for this section.57 // Mark all symbols listed in the relocation table for this section.
65 for (SymbolBody *B : SC->symbols())58 for (Symbol *B : SC->symbols())
66 AddSym(B);59 if (B)
60 AddSym(B);
6761
68 // Mark associative sections if any.62 // Mark associative sections if any.
69 for (SectionChunk *C : SC->children())63 for (SectionChunk *C : SC->children())
deps/lld/COFF/Memory.h deleted-52
...@@ -1,52 +0,0 @@
1//===- Memory.h -------------------------------------------------*- C++ -*-===//
2//
3// The LLVM Linker
4//
5// This file is distributed under the University of Illinois Open Source
6// License. See LICENSE.TXT for details.
7//
8//===----------------------------------------------------------------------===//
9//
10// See ELF/Memory.h
11//
12//===----------------------------------------------------------------------===//
13
14#ifndef LLD_COFF_MEMORY_H
15#define LLD_COFF_MEMORY_H
16
17#include "llvm/Support/Allocator.h"
18#include "llvm/Support/StringSaver.h"
19#include <vector>
20
21namespace lld {
22namespace coff {
23
24extern llvm::BumpPtrAllocator BAlloc;
25extern llvm::StringSaver Saver;
26
27struct SpecificAllocBase {
28 SpecificAllocBase() { Instances.push_back(this); }
29 virtual ~SpecificAllocBase() = default;
30 virtual void reset() = 0;
31 static std::vector<SpecificAllocBase *> Instances;
32};
33
34template <class T> struct SpecificAlloc : public SpecificAllocBase {
35 void reset() override { Alloc.DestroyAll(); }
36 llvm::SpecificBumpPtrAllocator<T> Alloc;
37};
38
39template <typename T, typename... U> T *make(U &&... Args) {
40 static SpecificAlloc<T> Alloc;
41 return new (Alloc.Alloc.Allocate()) T(std::forward<U>(Args)...);
42}
43
44inline void freeArena() {
45 for (SpecificAllocBase *Alloc : SpecificAllocBase::Instances)
46 Alloc->reset();
47 BAlloc.Reset();
48}
49}
50}
51
52#endif
deps/lld/COFF/MinGW.cpp created+146
...@@ -0,0 +1,146 @@
1//===- MinGW.cpp ----------------------------------------------------------===//
2//
3// The LLVM Linker
4//
5// This file is distributed under the University of Illinois Open Source
6// License. See LICENSE.TXT for details.
7//
8//===----------------------------------------------------------------------===//
9
10#include "MinGW.h"
11#include "SymbolTable.h"
12#include "lld/Common/ErrorHandler.h"
13#include "llvm/Object/COFF.h"
14#include "llvm/Support/Path.h"
15#include "llvm/Support/raw_ostream.h"
16
17using namespace lld;
18using namespace lld::coff;
19using namespace llvm;
20using namespace llvm::COFF;
21
22AutoExporter::AutoExporter() {
23 if (Config->Machine == I386) {
24 ExcludeSymbols = {
25 "__NULL_IMPORT_DESCRIPTOR",
26 "__pei386_runtime_relocator",
27 "_do_pseudo_reloc",
28 "_impure_ptr",
29 "__impure_ptr",
30 "__fmode",
31 "_environ",
32 "___dso_handle",
33 // These are the MinGW names that differ from the standard
34 // ones (lacking an extra underscore).
35 "_DllMain@12",
36 "_DllEntryPoint@12",
37 "_DllMainCRTStartup@12",
38 };
39 } else {
40 ExcludeSymbols = {
41 "_NULL_IMPORT_DESCRIPTOR",
42 "_pei386_runtime_relocator",
43 "do_pseudo_reloc",
44 "impure_ptr",
45 "_impure_ptr",
46 "_fmode",
47 "environ",
48 "__dso_handle",
49 // These are the MinGW names that differ from the standard
50 // ones (lacking an extra underscore).
51 "DllMain",
52 "DllEntryPoint",
53 "DllMainCRTStartup",
54 };
55 }
56
57 ExcludeLibs = {
58 "libgcc",
59 "libgcc_s",
60 "libstdc++",
61 "libmingw32",
62 "libmingwex",
63 "libg2c",
64 "libsupc++",
65 "libobjc",
66 "libgcj",
67 "libclang_rt.builtins-aarch64",
68 "libclang_rt.builtins-arm",
69 "libclang_rt.builtins-i386",
70 "libclang_rt.builtins-x86_64",
71 "libc++",
72 "libc++abi",
73 "libunwind",
74 "libmsvcrt",
75 "libucrtbase",
76 };
77 ExcludeObjects = {
78 "crt0.o",
79 "crt1.o",
80 "crt1u.o",
81 "crt2.o",
82 "crt2u.o",
83 "dllcrt1.o",
84 "dllcrt2.o",
85 "gcrt0.o",
86 "gcrt1.o",
87 "gcrt2.o",
88 "crtbegin.o",
89 "crtend.o",
90 };
91}
92
93bool AutoExporter::shouldExport(Defined *Sym) const {
94 if (!Sym || !Sym->isLive() || !Sym->getChunk())
95 return false;
96
97 // Only allow the symbol kinds that make sense to export; in particular,
98 // disallow import symbols.
99 if (!isa<DefinedRegular>(Sym) && !isa<DefinedCommon>(Sym))
100 return false;
101 if (ExcludeSymbols.count(Sym->getName()))
102 return false;
103
104 // Don't export anything that looks like an import symbol (which also can be
105 // a manually defined data symbol with such a name).
106 if (Sym->getName().startswith("__imp_"))
107 return false;
108
109 // If a corresponding __imp_ symbol exists and is defined, don't export it.
110 if (Symtab->find(("__imp_" + Sym->getName()).str()))
111 return false;
112
113 // Check that file is non-null before dereferencing it, symbols not
114 // originating in regular object files probably shouldn't be exported.
115 if (!Sym->getFile())
116 return false;
117
118 StringRef LibName = sys::path::filename(Sym->getFile()->ParentName);
119
120 // Drop the file extension.
121 LibName = LibName.substr(0, LibName.rfind('.'));
122 if (!LibName.empty())
123 return !ExcludeLibs.count(LibName);
124
125 StringRef FileName = sys::path::filename(Sym->getFile()->getName());
126 return !ExcludeObjects.count(FileName);
127}
128
129void coff::writeDefFile(StringRef Name) {
130 std::error_code EC;
131 raw_fd_ostream OS(Name, EC, sys::fs::F_None);
132 if (EC)
133 fatal("cannot open " + Name + ": " + EC.message());
134
135 OS << "EXPORTS\n";
136 for (Export &E : Config->Exports) {
137 OS << " " << E.ExportName << " "
138 << "@" << E.Ordinal;
139 if (auto *Def = dyn_cast_or_null<Defined>(E.Sym)) {
140 if (Def && Def->getChunk() &&
141 !(Def->getChunk()->getPermissions() & IMAGE_SCN_MEM_EXECUTE))
142 OS << " DATA";
143 }
144 OS << "\n";
145 }
146}
deps/lld/COFF/MinGW.h created+38
...@@ -0,0 +1,38 @@
1//===- MinGW.h --------------------------------------------------*- C++ -*-===//
2//
3// The LLVM Linker
4//
5// This file is distributed under the University of Illinois Open Source
6// License. See LICENSE.TXT for details.
7//
8//===----------------------------------------------------------------------===//
9
10#ifndef LLD_COFF_MINGW_H
11#define LLD_COFF_MINGW_H
12
13#include "Config.h"
14#include "Symbols.h"
15#include "lld/Common/LLVM.h"
16
17namespace lld {
18namespace coff {
19
20// Logic for deciding what symbols to export, when exporting all
21// symbols for MinGW.
22class AutoExporter {
23public:
24 AutoExporter();
25
26 llvm::StringSet<> ExcludeSymbols;
27 llvm::StringSet<> ExcludeLibs;
28 llvm::StringSet<> ExcludeObjects;
29
30 bool shouldExport(Defined *Sym) const;
31};
32
33void writeDefFile(StringRef Name);
34
35} // namespace coff
36} // namespace lld
37
38#endif
deps/lld/COFF/Options.td+46-20
...@@ -9,13 +9,15 @@ class F<string name> : Flag<["/", "-", "-?"], name>;...@@ -9,13 +9,15 @@ class F<string name> : Flag<["/", "-", "-?"], name>;
9class P<string name, string help> :9class P<string name, string help> :
10 Joined<["/", "-", "-?"], name#":">, HelpText<help>;10 Joined<["/", "-", "-?"], name#":">, HelpText<help>;
1111
12// Boolean flag suffixed by ":no".12// Boolean flag which can be suffixed by ":no". Using it unsuffixed turns the
13multiclass B<string name, string help> {13// flag on and using it suffixed by ":no" turns it off.
14 def "" : F<name>;14multiclass B<string name, string help_on, string help_off> {
15 def _no : F<name#":no">, HelpText<help>;15 def "" : F<name>, HelpText<help_on>;
16 def _no : F<name#":no">, HelpText<help_off>;
16}17}
1718
18def align : P<"align", "Section alignment">;19def align : P<"align", "Section alignment">;
20def aligncomm : P<"aligncomm", "Set common symbol alignment">;
19def alternatename : P<"alternatename", "Define weak alias">;21def alternatename : P<"alternatename", "Define weak alias">;
20def base : P<"base", "Base address of the program">;22def base : P<"base", "Base address of the program">;
21def defaultlib : P<"defaultlib", "Add the library to the list of input files">;23def defaultlib : P<"defaultlib", "Add the library to the list of input files">;
...@@ -27,9 +29,12 @@ def export : P<"export", "Export a function">;...@@ -27,9 +29,12 @@ def export : P<"export", "Export a function">;
27// No help text because /failifmismatch is not intended to be used by the user.29// No help text because /failifmismatch is not intended to be used by the user.
28def failifmismatch : P<"failifmismatch", "">;30def failifmismatch : P<"failifmismatch", "">;
29def heap : P<"heap", "Size of the heap">;31def heap : P<"heap", "Size of the heap">;
32def ignore : P<"ignore", "Specify warning codes to ignore">;
30def implib : P<"implib", "Import library name">;33def implib : P<"implib", "Import library name">;
31def libpath : P<"libpath", "Additional library search path">;34def libpath : P<"libpath", "Additional library search path">;
32def linkrepro : P<"linkrepro", "Dump linker invocation and input files for debugging">;35def linkrepro : P<"linkrepro", "Dump linker invocation and input files for debugging">;
36def lldltocache : P<"lldltocache", "Path to ThinLTO cached object file directory">;
37def lldltocachepolicy : P<"lldltocachepolicy", "Pruning policy for the ThinLTO cache">;
33def lldsavetemps : F<"lldsavetemps">,38def lldsavetemps : F<"lldsavetemps">,
34 HelpText<"Save temporary files instead of deleting them">;39 HelpText<"Save temporary files instead of deleting them">;
35def machine : P<"machine", "Specify target platform">;40def machine : P<"machine", "Specify target platform">;
...@@ -44,6 +49,7 @@ def stack : P<"stack", "Size of the stack">;...@@ -44,6 +49,7 @@ def stack : P<"stack", "Size of the stack">;
44def stub : P<"stub", "Specify DOS stub file">;49def stub : P<"stub", "Specify DOS stub file">;
45def subsystem : P<"subsystem", "Specify subsystem">;50def subsystem : P<"subsystem", "Specify subsystem">;
46def version : P<"version", "Specify a version number in the PE header">;51def version : P<"version", "Specify a version number in the PE header">;
52def wholearchive_file : P<"wholearchive", "Include all object files from this archive">;
4753
48def disallowlib : Joined<["/", "-", "-?"], "disallowlib:">, Alias<nodefaultlib>;54def disallowlib : Joined<["/", "-", "-?"], "disallowlib:">, Alias<nodefaultlib>;
4955
...@@ -75,31 +81,53 @@ def profile : F<"profile">;...@@ -75,31 +81,53 @@ def profile : F<"profile">;
75def swaprun_cd : F<"swaprun:cd">;81def swaprun_cd : F<"swaprun:cd">;
76def swaprun_net : F<"swaprun:net">;82def swaprun_net : F<"swaprun:net">;
77def verbose : F<"verbose">;83def verbose : F<"verbose">;
84def wholearchive_flag : F<"wholearchive">;
7885
79def force : F<"force">,86def force : F<"force">,
80 HelpText<"Allow undefined symbols when creating executables">;87 HelpText<"Allow undefined symbols when creating executables">;
81def force_unresolved : F<"force:unresolved">;88def force_unresolved : F<"force:unresolved">;
89defm WX : B<"WX", "Treat warnings as errors", "Don't treat warnings as errors">;
8290
83defm allowbind: B<"allowbind", "Disable DLL binding">;91defm allowbind : B<"allowbind", "Enable DLL binding (default)",
84defm allowisolation : B<"allowisolation", "Set NO_ISOLATION bit">;92 "Disable DLL binding">;
93defm allowisolation : B<"allowisolation", "Enable DLL isolation (default)",
94 "Disable DLL isolation">;
85defm appcontainer : B<"appcontainer",95defm appcontainer : B<"appcontainer",
86 "Image can only be run in an app container">;96 "Image can only be run in an app container",
87defm dynamicbase : B<"dynamicbase",97 "Image can run outside an app container (default)">;
88 "Disable address space layout randomization">;98defm dynamicbase : B<"dynamicbase", "Enable ASLR (default unless /fixed)",
89defm fixed : B<"fixed", "Enable base relocations">;99 "Disable ASLR (default when /fixed)">;
90defm highentropyva : B<"highentropyva", "Set HIGH_ENTROPY_VA bit">;100defm fixed : B<"fixed", "Disable base relocations",
91defm largeaddressaware : B<"largeaddressaware", "Disable large addresses">;101 "Enable base relocations (default)">;
92defm nxcompat : B<"nxcompat", "Disable data execution provention">;102defm highentropyva : B<"highentropyva",
93defm safeseh : B<"safeseh", "Produce an image with Safe Exception Handler">;103 "Enable 64-bit ASLR (default on 64-bit)",
94defm tsaware : B<"tsaware", "Create non-Terminal Server aware executable">;104 "Disable 64-bit ASLR">;
105defm largeaddressaware : B<"largeaddressaware",
106 "Enable large addresses (default on 64-bit)",
107 "Disable large addresses (default on 32-bit)">;
108defm nxcompat : B<"nxcompat", "Enable data execution prevention (default)",
109 "Disable data execution provention">;
110defm safeseh : B<"safeseh",
111 "Produce an image with Safe Exception Handler (only for x86)",
112 "Don't produce an image with Safe Exception Handler">;
113defm tsaware : B<"tsaware",
114 "Create Terminal Server aware executable (default)",
115 "Create non-Terminal Server aware executable">;
95116
96def help : F<"help">;117def help : F<"help">;
97def help_q : Flag<["/?", "-?"], "">, Alias<help>;118def help_q : Flag<["/?", "-?"], "">, Alias<help>;
98119
99// LLD extensions120// LLD extensions
100def nopdb : F<"nopdb">, HelpText<"Disable PDB generation for DWARF users">;121def debug_ghash : F<"debug:ghash">;
101def nosymtab : F<"nosymtab">;122def debug_dwarf : F<"debug:dwarf">;
123def export_all_symbols : F<"export-all-symbols">;
124def lldmingw : F<"lldmingw">;
102def msvclto : F<"msvclto">;125def msvclto : F<"msvclto">;
126def output_def : Joined<["/", "-"], "output-def:">;
127def rsp_quoting : Joined<["--"], "rsp-quoting=">,
128 HelpText<"Quoting style for response files, 'windows' (default) or 'posix'">;
129def dash_dash_version : Flag<["--"], "version">,
130 HelpText<"Print version information">;
103131
104// Flags for debugging132// Flags for debugging
105def lldmap : F<"lldmap">;133def lldmap : F<"lldmap">;
...@@ -128,12 +156,10 @@ def fastfail : F<"fastfail">;...@@ -128,12 +156,10 @@ def fastfail : F<"fastfail">;
128def delay : QF<"delay">;156def delay : QF<"delay">;
129def errorreport : QF<"errorreport">;157def errorreport : QF<"errorreport">;
130def idlout : QF<"idlout">;158def idlout : QF<"idlout">;
131def ignore : QF<"ignore">;
132def maxilksize : QF<"maxilksize">;159def maxilksize : QF<"maxilksize">;
160def natvis : QF<"natvis">;
133def pdbaltpath : QF<"pdbaltpath">;161def pdbaltpath : QF<"pdbaltpath">;
134def tlbid : QF<"tlbid">;162def tlbid : QF<"tlbid">;
135def tlbout : QF<"tlbout">;163def tlbout : QF<"tlbout">;
136def verbose_all : QF<"verbose">;164def verbose_all : QF<"verbose">;
137def guardsym : QF<"guardsym">;165def guardsym : QF<"guardsym">;
138
139defm wx : QB<"wx">;
deps/lld/COFF/PDB.cpp+439-114
...@@ -10,37 +10,44 @@...@@ -10,37 +10,44 @@
10#include "PDB.h"10#include "PDB.h"
11#include "Chunks.h"11#include "Chunks.h"
12#include "Config.h"12#include "Config.h"
13#include "Error.h"13#include "Driver.h"
14#include "SymbolTable.h"14#include "SymbolTable.h"
15#include "Symbols.h"15#include "Symbols.h"
16#include "Writer.h"
17#include "lld/Common/ErrorHandler.h"
16#include "llvm/DebugInfo/CodeView/CVDebugRecord.h"18#include "llvm/DebugInfo/CodeView/CVDebugRecord.h"
17#include "llvm/DebugInfo/CodeView/DebugSubsectionRecord.h"19#include "llvm/DebugInfo/CodeView/DebugSubsectionRecord.h"
20#include "llvm/DebugInfo/CodeView/GlobalTypeTableBuilder.h"
18#include "llvm/DebugInfo/CodeView/LazyRandomTypeCollection.h"21#include "llvm/DebugInfo/CodeView/LazyRandomTypeCollection.h"
22#include "llvm/DebugInfo/CodeView/MergingTypeTableBuilder.h"
23#include "llvm/DebugInfo/CodeView/RecordName.h"
24#include "llvm/DebugInfo/CodeView/SymbolDeserializer.h"
19#include "llvm/DebugInfo/CodeView/SymbolSerializer.h"25#include "llvm/DebugInfo/CodeView/SymbolSerializer.h"
20#include "llvm/DebugInfo/CodeView/TypeDeserializer.h"26#include "llvm/DebugInfo/CodeView/TypeDeserializer.h"
21#include "llvm/DebugInfo/CodeView/TypeDumpVisitor.h"27#include "llvm/DebugInfo/CodeView/TypeDumpVisitor.h"
22#include "llvm/DebugInfo/CodeView/TypeIndexDiscovery.h"28#include "llvm/DebugInfo/CodeView/TypeIndexDiscovery.h"
23#include "llvm/DebugInfo/CodeView/TypeStreamMerger.h"29#include "llvm/DebugInfo/CodeView/TypeStreamMerger.h"
24#include "llvm/DebugInfo/CodeView/TypeTableBuilder.h"
25#include "llvm/DebugInfo/MSF/MSFBuilder.h"30#include "llvm/DebugInfo/MSF/MSFBuilder.h"
26#include "llvm/DebugInfo/MSF/MSFCommon.h"31#include "llvm/DebugInfo/MSF/MSFCommon.h"
27#include "llvm/DebugInfo/PDB/GenericError.h"32#include "llvm/DebugInfo/PDB/GenericError.h"
28#include "llvm/DebugInfo/PDB/Native/DbiModuleDescriptorBuilder.h"33#include "llvm/DebugInfo/PDB/Native/DbiModuleDescriptorBuilder.h"
29#include "llvm/DebugInfo/PDB/Native/DbiStream.h"34#include "llvm/DebugInfo/PDB/Native/DbiStream.h"
30#include "llvm/DebugInfo/PDB/Native/DbiStreamBuilder.h"35#include "llvm/DebugInfo/PDB/Native/DbiStreamBuilder.h"
36#include "llvm/DebugInfo/PDB/Native/GSIStreamBuilder.h"
31#include "llvm/DebugInfo/PDB/Native/InfoStream.h"37#include "llvm/DebugInfo/PDB/Native/InfoStream.h"
32#include "llvm/DebugInfo/PDB/Native/InfoStreamBuilder.h"38#include "llvm/DebugInfo/PDB/Native/InfoStreamBuilder.h"
33#include "llvm/DebugInfo/PDB/Native/NativeSession.h"39#include "llvm/DebugInfo/PDB/Native/NativeSession.h"
34#include "llvm/DebugInfo/PDB/Native/PDBFile.h"40#include "llvm/DebugInfo/PDB/Native/PDBFile.h"
35#include "llvm/DebugInfo/PDB/Native/PDBFileBuilder.h"41#include "llvm/DebugInfo/PDB/Native/PDBFileBuilder.h"
36#include "llvm/DebugInfo/PDB/Native/PDBStringTableBuilder.h"42#include "llvm/DebugInfo/PDB/Native/PDBStringTableBuilder.h"
43#include "llvm/DebugInfo/PDB/Native/TpiHashing.h"
37#include "llvm/DebugInfo/PDB/Native/TpiStream.h"44#include "llvm/DebugInfo/PDB/Native/TpiStream.h"
38#include "llvm/DebugInfo/PDB/Native/TpiStreamBuilder.h"45#include "llvm/DebugInfo/PDB/Native/TpiStreamBuilder.h"
39#include "llvm/DebugInfo/PDB/PDB.h"46#include "llvm/DebugInfo/PDB/PDB.h"
40#include "llvm/Object/COFF.h"47#include "llvm/Object/COFF.h"
41#include "llvm/Support/BinaryByteStream.h"48#include "llvm/Support/BinaryByteStream.h"
42#include "llvm/Support/Endian.h"49#include "llvm/Support/Endian.h"
43#include "llvm/Support/FileOutputBuffer.h"50#include "llvm/Support/JamCRC.h"
44#include "llvm/Support/Path.h"51#include "llvm/Support/Path.h"
45#include "llvm/Support/ScopedPrinter.h"52#include "llvm/Support/ScopedPrinter.h"
46#include <memory>53#include <memory>
...@@ -67,16 +74,16 @@ class PDBLinker {...@@ -67,16 +74,16 @@ class PDBLinker {
67public:74public:
68 PDBLinker(SymbolTable *Symtab)75 PDBLinker(SymbolTable *Symtab)
69 : Alloc(), Symtab(Symtab), Builder(Alloc), TypeTable(Alloc),76 : Alloc(), Symtab(Symtab), Builder(Alloc), TypeTable(Alloc),
70 IDTable(Alloc) {}77 IDTable(Alloc), GlobalTypeTable(Alloc), GlobalIDTable(Alloc) {}
7178
72 /// Emit the basic PDB structure: initial streams, headers, etc.79 /// Emit the basic PDB structure: initial streams, headers, etc.
73 void initialize(const llvm::codeview::DebugInfo *DI);80 void initialize(const llvm::codeview::DebugInfo &BuildId);
7481
75 /// Link CodeView from each object file in the symbol table into the PDB.82 /// Link CodeView from each object file in the symbol table into the PDB.
76 void addObjectsToPDB();83 void addObjectsToPDB();
7784
78 /// Link CodeView from a single object file into the PDB.85 /// Link CodeView from a single object file into the PDB.
79 void addObjectFile(ObjectFile *File);86 void addObjFile(ObjFile *File);
8087
81 /// Produce a mapping from the type and item indices used in the object88 /// Produce a mapping from the type and item indices used in the object
82 /// file to those in the destination PDB.89 /// file to those in the destination PDB.
...@@ -89,13 +96,17 @@ public:...@@ -89,13 +96,17 @@ public:
89 /// If the object does not use a type server PDB (compiled with /Z7), we merge96 /// If the object does not use a type server PDB (compiled with /Z7), we merge
90 /// all the type and item records from the .debug$S stream and fill in the97 /// all the type and item records from the .debug$S stream and fill in the
91 /// caller-provided ObjectIndexMap.98 /// caller-provided ObjectIndexMap.
92 const CVIndexMap &mergeDebugT(ObjectFile *File, CVIndexMap &ObjectIndexMap);99 const CVIndexMap &mergeDebugT(ObjFile *File, CVIndexMap &ObjectIndexMap);
93100
94 const CVIndexMap &maybeMergeTypeServerPDB(ObjectFile *File,101 const CVIndexMap &maybeMergeTypeServerPDB(ObjFile *File,
95 TypeServer2Record &TS);102 TypeServer2Record &TS);
96103
97 /// Add the section map and section contributions to the PDB.104 /// Add the section map and section contributions to the PDB.
98 void addSections(ArrayRef<uint8_t> SectionTable);105 void addSections(ArrayRef<OutputSection *> OutputSections,
106 ArrayRef<uint8_t> SectionTable);
107
108 void addSectionContrib(pdb::DbiModuleDescriptorBuilder &LinkerModule,
109 OutputSection *OS, Chunk *C);
99110
100 /// Write the PDB to disk.111 /// Write the PDB to disk.
101 void commit();112 void commit();
...@@ -108,10 +119,16 @@ private:...@@ -108,10 +119,16 @@ private:
108 pdb::PDBFileBuilder Builder;119 pdb::PDBFileBuilder Builder;
109120
110 /// Type records that will go into the PDB TPI stream.121 /// Type records that will go into the PDB TPI stream.
111 TypeTableBuilder TypeTable;122 MergingTypeTableBuilder TypeTable;
112123
113 /// Item records that will go into the PDB IPI stream.124 /// Item records that will go into the PDB IPI stream.
114 TypeTableBuilder IDTable;125 MergingTypeTableBuilder IDTable;
126
127 /// Type records that will go into the PDB TPI stream (for /DEBUG:GHASH)
128 GlobalTypeTableBuilder GlobalTypeTable;
129
130 /// Item records that will go into the PDB IPI stream (for /DEBUG:GHASH)
131 GlobalTypeTableBuilder GlobalIDTable;
115132
116 /// PDBs use a single global string table for filenames in the file checksum133 /// PDBs use a single global string table for filenames in the file checksum
117 /// table.134 /// table.
...@@ -126,15 +143,7 @@ private:...@@ -126,15 +143,7 @@ private:
126};143};
127}144}
128145
129// Returns a list of all SectionChunks.146static SectionChunk *findByName(ArrayRef<SectionChunk *> Sections,
130static void addSectionContribs(SymbolTable *Symtab,
131 pdb::DbiStreamBuilder &DbiBuilder) {
132 for (Chunk *C : Symtab->getChunks())
133 if (auto *SC = dyn_cast<SectionChunk>(C))
134 DbiBuilder.addSectionContrib(SC->File->ModuleDBI, SC->Header);
135}
136
137static SectionChunk *findByName(std::vector<SectionChunk *> &Sections,
138 StringRef Name) {147 StringRef Name) {
139 for (SectionChunk *C : Sections)148 for (SectionChunk *C : Sections)
140 if (C->getSectionName() == Name)149 if (C->getSectionName() == Name)
...@@ -152,21 +161,58 @@ static ArrayRef<uint8_t> consumeDebugMagic(ArrayRef<uint8_t> Data,...@@ -152,21 +161,58 @@ static ArrayRef<uint8_t> consumeDebugMagic(ArrayRef<uint8_t> Data,
152 return Data.slice(4);161 return Data.slice(4);
153}162}
154163
155static ArrayRef<uint8_t> getDebugSection(ObjectFile *File, StringRef SecName) {164static ArrayRef<uint8_t> getDebugSection(ObjFile *File, StringRef SecName) {
156 if (SectionChunk *Sec = findByName(File->getDebugChunks(), SecName))165 if (SectionChunk *Sec = findByName(File->getDebugChunks(), SecName))
157 return consumeDebugMagic(Sec->getContents(), SecName);166 return consumeDebugMagic(Sec->getContents(), SecName);
158 return {};167 return {};
159}168}
160169
170// A COFF .debug$H section is currently a clang extension. This function checks
171// if a .debug$H section is in a format that we expect / understand, so that we
172// can ignore any sections which are coincidentally also named .debug$H but do
173// not contain a format we recognize.
174static bool canUseDebugH(ArrayRef<uint8_t> DebugH) {
175 if (DebugH.size() < sizeof(object::debug_h_header))
176 return false;
177 auto *Header =
178 reinterpret_cast<const object::debug_h_header *>(DebugH.data());
179 DebugH = DebugH.drop_front(sizeof(object::debug_h_header));
180 return Header->Magic == COFF::DEBUG_HASHES_SECTION_MAGIC &&
181 Header->Version == 0 &&
182 Header->HashAlgorithm == uint16_t(GlobalTypeHashAlg::SHA1) &&
183 (DebugH.size() % 20 == 0);
184}
185
186static Optional<ArrayRef<uint8_t>> getDebugH(ObjFile *File) {
187 SectionChunk *Sec = findByName(File->getDebugChunks(), ".debug$H");
188 if (!Sec)
189 return llvm::None;
190 ArrayRef<uint8_t> Contents = Sec->getContents();
191 if (!canUseDebugH(Contents))
192 return None;
193 return Contents;
194}
195
196static ArrayRef<GloballyHashedType>
197getHashesFromDebugH(ArrayRef<uint8_t> DebugH) {
198 assert(canUseDebugH(DebugH));
199
200 DebugH = DebugH.drop_front(sizeof(object::debug_h_header));
201 uint32_t Count = DebugH.size() / sizeof(GloballyHashedType);
202 return {reinterpret_cast<const GloballyHashedType *>(DebugH.data()), Count};
203}
204
161static void addTypeInfo(pdb::TpiStreamBuilder &TpiBuilder,205static void addTypeInfo(pdb::TpiStreamBuilder &TpiBuilder,
162 TypeTableBuilder &TypeTable) {206 TypeCollection &TypeTable) {
163 // Start the TPI or IPI stream header.207 // Start the TPI or IPI stream header.
164 TpiBuilder.setVersionHeader(pdb::PdbTpiV80);208 TpiBuilder.setVersionHeader(pdb::PdbTpiV80);
165209
166 // Flatten the in memory type table.210 // Flatten the in memory type table and hash each type.
167 TypeTable.ForEachRecord([&](TypeIndex TI, ArrayRef<uint8_t> Rec) {211 TypeTable.ForEachRecord([&](TypeIndex TI, const CVType &Type) {
168 // FIXME: Hash types.212 auto Hash = pdb::hashTypeRecord(Type);
169 TpiBuilder.addTypeRecord(Rec, None);213 if (auto E = Hash.takeError())
214 fatal("type hashing error");
215 TpiBuilder.addTypeRecord(Type.RecordData, *Hash);
170 });216 });
171}217}
172218
...@@ -180,11 +226,11 @@ maybeReadTypeServerRecord(CVTypeArray &Types) {...@@ -180,11 +226,11 @@ maybeReadTypeServerRecord(CVTypeArray &Types) {
180 return None;226 return None;
181 TypeServer2Record TS;227 TypeServer2Record TS;
182 if (auto EC = TypeDeserializer::deserializeAs(const_cast<CVType &>(Type), TS))228 if (auto EC = TypeDeserializer::deserializeAs(const_cast<CVType &>(Type), TS))
183 fatal(EC, "error reading type server record");229 fatal("error reading type server record: " + toString(std::move(EC)));
184 return std::move(TS);230 return std::move(TS);
185}231}
186232
187const CVIndexMap &PDBLinker::mergeDebugT(ObjectFile *File,233const CVIndexMap &PDBLinker::mergeDebugT(ObjFile *File,
188 CVIndexMap &ObjectIndexMap) {234 CVIndexMap &ObjectIndexMap) {
189 ArrayRef<uint8_t> Data = getDebugSection(File, ".debug$T");235 ArrayRef<uint8_t> Data = getDebugSection(File, ".debug$T");
190 if (Data.empty())236 if (Data.empty())
...@@ -194,7 +240,7 @@ const CVIndexMap &PDBLinker::mergeDebugT(ObjectFile *File,...@@ -194,7 +240,7 @@ const CVIndexMap &PDBLinker::mergeDebugT(ObjectFile *File,
194 CVTypeArray Types;240 CVTypeArray Types;
195 BinaryStreamReader Reader(Stream);241 BinaryStreamReader Reader(Stream);
196 if (auto EC = Reader.readArray(Types, Reader.getLength()))242 if (auto EC = Reader.readArray(Types, Reader.getLength()))
197 fatal(EC, "Reader::readArray failed");243 fatal("Reader::readArray failed: " + toString(std::move(EC)));
198244
199 // Look through type servers. If we've already seen this type server, don't245 // Look through type servers. If we've already seen this type server, don't
200 // merge any type information.246 // merge any type information.
...@@ -203,17 +249,41 @@ const CVIndexMap &PDBLinker::mergeDebugT(ObjectFile *File,...@@ -203,17 +249,41 @@ const CVIndexMap &PDBLinker::mergeDebugT(ObjectFile *File,
203249
204 // This is a /Z7 object. Fill in the temporary, caller-provided250 // This is a /Z7 object. Fill in the temporary, caller-provided
205 // ObjectIndexMap.251 // ObjectIndexMap.
206 if (auto Err = mergeTypeAndIdRecords(IDTable, TypeTable,252 if (Config->DebugGHashes) {
207 ObjectIndexMap.TPIMap, Types))253 ArrayRef<GloballyHashedType> Hashes;
208 fatal(Err, "codeview::mergeTypeAndIdRecords failed");254 std::vector<GloballyHashedType> OwnedHashes;
255 if (Optional<ArrayRef<uint8_t>> DebugH = getDebugH(File))
256 Hashes = getHashesFromDebugH(*DebugH);
257 else {
258 OwnedHashes = GloballyHashedType::hashTypes(Types);
259 Hashes = OwnedHashes;
260 }
261
262 if (auto Err = mergeTypeAndIdRecords(GlobalIDTable, GlobalTypeTable,
263 ObjectIndexMap.TPIMap, Types, Hashes))
264 fatal("codeview::mergeTypeAndIdRecords failed: " +
265 toString(std::move(Err)));
266 } else {
267 if (auto Err = mergeTypeAndIdRecords(IDTable, TypeTable,
268 ObjectIndexMap.TPIMap, Types))
269 fatal("codeview::mergeTypeAndIdRecords failed: " +
270 toString(std::move(Err)));
271 }
209 return ObjectIndexMap;272 return ObjectIndexMap;
210}273}
211274
212static Expected<std::unique_ptr<pdb::NativeSession>>275static Expected<std::unique_ptr<pdb::NativeSession>>
213tryToLoadPDB(const GUID &GuidFromObj, StringRef TSPath) {276tryToLoadPDB(const GUID &GuidFromObj, StringRef TSPath) {
277 ErrorOr<std::unique_ptr<MemoryBuffer>> MBOrErr = MemoryBuffer::getFile(
278 TSPath, /*FileSize=*/-1, /*RequiresNullTerminator=*/false);
279 if (!MBOrErr)
280 return errorCodeToError(MBOrErr.getError());
281
214 std::unique_ptr<pdb::IPDBSession> ThisSession;282 std::unique_ptr<pdb::IPDBSession> ThisSession;
215 if (auto EC =283 if (auto EC = pdb::NativeSession::createFromPdb(
216 pdb::loadDataForPDB(pdb::PDB_ReaderType::Native, TSPath, ThisSession))284 MemoryBuffer::getMemBuffer(Driver->takeBuffer(std::move(*MBOrErr)),
285 /*RequiresNullTerminator=*/false),
286 ThisSession))
217 return std::move(EC);287 return std::move(EC);
218288
219 std::unique_ptr<pdb::NativeSession> NS(289 std::unique_ptr<pdb::NativeSession> NS(
...@@ -234,7 +304,7 @@ tryToLoadPDB(const GUID &GuidFromObj, StringRef TSPath) {...@@ -234,7 +304,7 @@ tryToLoadPDB(const GUID &GuidFromObj, StringRef TSPath) {
234 return std::move(NS);304 return std::move(NS);
235}305}
236306
237const CVIndexMap &PDBLinker::maybeMergeTypeServerPDB(ObjectFile *File,307const CVIndexMap &PDBLinker::maybeMergeTypeServerPDB(ObjFile *File,
238 TypeServer2Record &TS) {308 TypeServer2Record &TS) {
239 // First, check if we already loaded a PDB with this GUID. Return the type309 // First, check if we already loaded a PDB with this GUID. Return the type
240 // index mapping if we have it.310 // index mapping if we have it.
...@@ -260,23 +330,46 @@ const CVIndexMap &PDBLinker::maybeMergeTypeServerPDB(ObjectFile *File,...@@ -260,23 +330,46 @@ const CVIndexMap &PDBLinker::maybeMergeTypeServerPDB(ObjectFile *File,
260 ExpectedSession = tryToLoadPDB(TS.getGuid(), Path);330 ExpectedSession = tryToLoadPDB(TS.getGuid(), Path);
261 }331 }
262 if (auto E = ExpectedSession.takeError())332 if (auto E = ExpectedSession.takeError())
263 fatal(E, "Type server PDB was not found");333 fatal("Type server PDB was not found: " + toString(std::move(E)));
264334
265 // Merge TPI first, because the IPI stream will reference type indices.
266 auto ExpectedTpi = (*ExpectedSession)->getPDBFile().getPDBTpiStream();335 auto ExpectedTpi = (*ExpectedSession)->getPDBFile().getPDBTpiStream();
267 if (auto E = ExpectedTpi.takeError())336 if (auto E = ExpectedTpi.takeError())
268 fatal(E, "Type server does not have TPI stream");337 fatal("Type server does not have TPI stream: " + toString(std::move(E)));
269 if (auto Err = mergeTypeRecords(TypeTable, IndexMap.TPIMap,
270 ExpectedTpi->typeArray()))
271 fatal(Err, "codeview::mergeTypeRecords failed");
272
273 // Merge IPI.
274 auto ExpectedIpi = (*ExpectedSession)->getPDBFile().getPDBIpiStream();338 auto ExpectedIpi = (*ExpectedSession)->getPDBFile().getPDBIpiStream();
275 if (auto E = ExpectedIpi.takeError())339 if (auto E = ExpectedIpi.takeError())
276 fatal(E, "Type server does not have TPI stream");340 fatal("Type server does not have TPI stream: " + toString(std::move(E)));
277 if (auto Err = mergeIdRecords(IDTable, IndexMap.TPIMap, IndexMap.IPIMap,341
278 ExpectedIpi->typeArray()))342 if (Config->DebugGHashes) {
279 fatal(Err, "codeview::mergeIdRecords failed");343 // PDBs do not actually store global hashes, so when merging a type server
344 // PDB we have to synthesize global hashes. To do this, we first synthesize
345 // global hashes for the TPI stream, since it is independent, then we
346 // synthesize hashes for the IPI stream, using the hashes for the TPI stream
347 // as inputs.
348 auto TpiHashes = GloballyHashedType::hashTypes(ExpectedTpi->typeArray());
349 auto IpiHashes =
350 GloballyHashedType::hashIds(ExpectedIpi->typeArray(), TpiHashes);
351
352 // Merge TPI first, because the IPI stream will reference type indices.
353 if (auto Err = mergeTypeRecords(GlobalTypeTable, IndexMap.TPIMap,
354 ExpectedTpi->typeArray(), TpiHashes))
355 fatal("codeview::mergeTypeRecords failed: " + toString(std::move(Err)));
356
357 // Merge IPI.
358 if (auto Err =
359 mergeIdRecords(GlobalIDTable, IndexMap.TPIMap, IndexMap.IPIMap,
360 ExpectedIpi->typeArray(), IpiHashes))
361 fatal("codeview::mergeIdRecords failed: " + toString(std::move(Err)));
362 } else {
363 // Merge TPI first, because the IPI stream will reference type indices.
364 if (auto Err = mergeTypeRecords(TypeTable, IndexMap.TPIMap,
365 ExpectedTpi->typeArray()))
366 fatal("codeview::mergeTypeRecords failed: " + toString(std::move(Err)));
367
368 // Merge IPI.
369 if (auto Err = mergeIdRecords(IDTable, IndexMap.TPIMap, IndexMap.IPIMap,
370 ExpectedIpi->typeArray()))
371 fatal("codeview::mergeIdRecords failed: " + toString(std::move(Err)));
372 }
280373
281 return IndexMap;374 return IndexMap;
282}375}
...@@ -290,7 +383,7 @@ static bool remapTypeIndex(TypeIndex &TI, ArrayRef<TypeIndex> TypeIndexMap) {...@@ -290,7 +383,7 @@ static bool remapTypeIndex(TypeIndex &TI, ArrayRef<TypeIndex> TypeIndexMap) {
290 return true;383 return true;
291}384}
292385
293static void remapTypesInSymbolRecord(ObjectFile *File,386static void remapTypesInSymbolRecord(ObjFile *File, SymbolKind SymKind,
294 MutableArrayRef<uint8_t> Contents,387 MutableArrayRef<uint8_t> Contents,
295 const CVIndexMap &IndexMap,388 const CVIndexMap &IndexMap,
296 ArrayRef<TiReference> TypeRefs) {389 ArrayRef<TiReference> TypeRefs) {
...@@ -301,27 +394,73 @@ static void remapTypesInSymbolRecord(ObjectFile *File,...@@ -301,27 +394,73 @@ static void remapTypesInSymbolRecord(ObjectFile *File,
301394
302 // This can be an item index or a type index. Choose the appropriate map.395 // This can be an item index or a type index. Choose the appropriate map.
303 ArrayRef<TypeIndex> TypeOrItemMap = IndexMap.TPIMap;396 ArrayRef<TypeIndex> TypeOrItemMap = IndexMap.TPIMap;
304 if (Ref.Kind == TiRefKind::IndexRef && IndexMap.IsTypeServerMap)397 bool IsItemIndex = Ref.Kind == TiRefKind::IndexRef;
398 if (IsItemIndex && IndexMap.IsTypeServerMap)
305 TypeOrItemMap = IndexMap.IPIMap;399 TypeOrItemMap = IndexMap.IPIMap;
306400
307 MutableArrayRef<TypeIndex> TIs(401 MutableArrayRef<TypeIndex> TIs(
308 reinterpret_cast<TypeIndex *>(Contents.data() + Ref.Offset), Ref.Count);402 reinterpret_cast<TypeIndex *>(Contents.data() + Ref.Offset), Ref.Count);
309 for (TypeIndex &TI : TIs) {403 for (TypeIndex &TI : TIs) {
310 if (!remapTypeIndex(TI, TypeOrItemMap)) {404 if (!remapTypeIndex(TI, TypeOrItemMap)) {
405 log("ignoring symbol record of kind 0x" + utohexstr(SymKind) + " in " +
406 File->getName() + " with bad " + (IsItemIndex ? "item" : "type") +
407 " index 0x" + utohexstr(TI.getIndex()));
311 TI = TypeIndex(SimpleTypeKind::NotTranslated);408 TI = TypeIndex(SimpleTypeKind::NotTranslated);
312 log("ignoring symbol record in " + File->getName() +
313 " with bad type index 0x" + utohexstr(TI.getIndex()));
314 continue;409 continue;
315 }410 }
316 }411 }
317 }412 }
318}413}
319414
320/// MSVC translates S_PROC_ID_END to S_END.415static SymbolKind symbolKind(ArrayRef<uint8_t> RecordData) {
321uint16_t canonicalizeSymbolKind(SymbolKind Kind) {416 const RecordPrefix *Prefix =
322 if (Kind == SymbolKind::S_PROC_ID_END)417 reinterpret_cast<const RecordPrefix *>(RecordData.data());
323 return SymbolKind::S_END;418 return static_cast<SymbolKind>(uint16_t(Prefix->RecordKind));
324 return Kind;419}
420
421/// MSVC translates S_PROC_ID_END to S_END, and S_[LG]PROC32_ID to S_[LG]PROC32
422static void translateIdSymbols(MutableArrayRef<uint8_t> &RecordData,
423 TypeCollection &IDTable) {
424 RecordPrefix *Prefix = reinterpret_cast<RecordPrefix *>(RecordData.data());
425
426 SymbolKind Kind = symbolKind(RecordData);
427
428 if (Kind == SymbolKind::S_PROC_ID_END) {
429 Prefix->RecordKind = SymbolKind::S_END;
430 return;
431 }
432
433 // In an object file, GPROC32_ID has an embedded reference which refers to the
434 // single object file type index namespace. This has already been translated
435 // to the PDB file's ID stream index space, but we need to convert this to a
436 // symbol that refers to the type stream index space. So we remap again from
437 // ID index space to type index space.
438 if (Kind == SymbolKind::S_GPROC32_ID || Kind == SymbolKind::S_LPROC32_ID) {
439 SmallVector<TiReference, 1> Refs;
440 auto Content = RecordData.drop_front(sizeof(RecordPrefix));
441 CVSymbol Sym(Kind, RecordData);
442 discoverTypeIndicesInSymbol(Sym, Refs);
443 assert(Refs.size() == 1);
444 assert(Refs.front().Count == 1);
445
446 TypeIndex *TI =
447 reinterpret_cast<TypeIndex *>(Content.data() + Refs[0].Offset);
448 // `TI` is the index of a FuncIdRecord or MemberFuncIdRecord which lives in
449 // the IPI stream, whose `FunctionType` member refers to the TPI stream.
450 // Note that LF_FUNC_ID and LF_MEMFUNC_ID have the same record layout, and
451 // in both cases we just need the second type index.
452 if (!TI->isSimple() && !TI->isNoneType()) {
453 CVType FuncIdData = IDTable.getType(*TI);
454 SmallVector<TypeIndex, 2> Indices;
455 discoverTypeIndices(FuncIdData, Indices);
456 assert(Indices.size() == 2);
457 *TI = Indices[1];
458 }
459
460 Kind = (Kind == SymbolKind::S_GPROC32_ID) ? SymbolKind::S_GPROC32
461 : SymbolKind::S_LPROC32;
462 Prefix->RecordKind = uint16_t(Kind);
463 }
325}464}
326465
327/// Copy the symbol record. In a PDB, symbol records must be 4 byte aligned.466/// Copy the symbol record. In a PDB, symbol records must be 4 byte aligned.
...@@ -339,10 +478,8 @@ static MutableArrayRef<uint8_t> copySymbolForPdb(const CVSymbol &Sym,...@@ -339,10 +478,8 @@ static MutableArrayRef<uint8_t> copySymbolForPdb(const CVSymbol &Sym,
339 memset(NewData.data() + Sym.length(), 0, Size - Sym.length());478 memset(NewData.data() + Sym.length(), 0, Size - Sym.length());
340479
341 // Update the record prefix length. It should point to the beginning of the480 // Update the record prefix length. It should point to the beginning of the
342 // next record. MSVC does some canonicalization of the record kind, so we do481 // next record.
343 // that as well.
344 auto *Prefix = reinterpret_cast<RecordPrefix *>(Mem);482 auto *Prefix = reinterpret_cast<RecordPrefix *>(Mem);
345 Prefix->RecordKind = canonicalizeSymbolKind(Sym.kind());
346 Prefix->RecordLen = Size - 2;483 Prefix->RecordLen = Size - 2;
347 return NewData;484 return NewData;
348}485}
...@@ -402,7 +539,7 @@ static void scopeStackOpen(SmallVectorImpl<SymbolScope> &Stack,...@@ -402,7 +539,7 @@ static void scopeStackOpen(SmallVectorImpl<SymbolScope> &Stack,
402}539}
403540
404static void scopeStackClose(SmallVectorImpl<SymbolScope> &Stack,541static void scopeStackClose(SmallVectorImpl<SymbolScope> &Stack,
405 uint32_t CurOffset, ObjectFile *File) {542 uint32_t CurOffset, ObjFile *File) {
406 if (Stack.empty()) {543 if (Stack.empty()) {
407 warn("symbol scopes are not balanced in " + File->getName());544 warn("symbol scopes are not balanced in " + File->getName());
408 return;545 return;
...@@ -411,8 +548,86 @@ static void scopeStackClose(SmallVectorImpl<SymbolScope> &Stack,...@@ -411,8 +548,86 @@ static void scopeStackClose(SmallVectorImpl<SymbolScope> &Stack,
411 S.OpeningRecord->PtrEnd = CurOffset;548 S.OpeningRecord->PtrEnd = CurOffset;
412}549}
413550
414static void mergeSymbolRecords(BumpPtrAllocator &Alloc, ObjectFile *File,551static bool symbolGoesInModuleStream(const CVSymbol &Sym) {
552 switch (Sym.kind()) {
553 case SymbolKind::S_GDATA32:
554 case SymbolKind::S_CONSTANT:
555 case SymbolKind::S_UDT:
556 // We really should not be seeing S_PROCREF and S_LPROCREF in the first place
557 // since they are synthesized by the linker in response to S_GPROC32 and
558 // S_LPROC32, but if we do see them, don't put them in the module stream I
559 // guess.
560 case SymbolKind::S_PROCREF:
561 case SymbolKind::S_LPROCREF:
562 return false;
563 // S_GDATA32 does not go in the module stream, but S_LDATA32 does.
564 case SymbolKind::S_LDATA32:
565 default:
566 return true;
567 }
568}
569
570static bool symbolGoesInGlobalsStream(const CVSymbol &Sym) {
571 switch (Sym.kind()) {
572 case SymbolKind::S_CONSTANT:
573 case SymbolKind::S_GDATA32:
574 // S_LDATA32 goes in both the module stream and the globals stream.
575 case SymbolKind::S_LDATA32:
576 case SymbolKind::S_GPROC32:
577 case SymbolKind::S_LPROC32:
578 // We really should not be seeing S_PROCREF and S_LPROCREF in the first place
579 // since they are synthesized by the linker in response to S_GPROC32 and
580 // S_LPROC32, but if we do see them, copy them straight through.
581 case SymbolKind::S_PROCREF:
582 case SymbolKind::S_LPROCREF:
583 return true;
584 // FIXME: For now, we drop all S_UDT symbols (i.e. they don't go in the
585 // globals stream or the modules stream). These have special handling which
586 // needs more investigation before we can get right, but by putting them all
587 // into the globals stream WinDbg fails to display local variables of class
588 // types saying that it cannot find the type Foo *. So as a stopgap just to
589 // keep things working, we drop them.
590 case SymbolKind::S_UDT:
591 default:
592 return false;
593 }
594}
595
596static void addGlobalSymbol(pdb::GSIStreamBuilder &Builder, ObjFile &File,
597 const CVSymbol &Sym) {
598 switch (Sym.kind()) {
599 case SymbolKind::S_CONSTANT:
600 case SymbolKind::S_UDT:
601 case SymbolKind::S_GDATA32:
602 case SymbolKind::S_LDATA32:
603 case SymbolKind::S_PROCREF:
604 case SymbolKind::S_LPROCREF:
605 Builder.addGlobalSymbol(Sym);
606 break;
607 case SymbolKind::S_GPROC32:
608 case SymbolKind::S_LPROC32: {
609 SymbolRecordKind K = SymbolRecordKind::ProcRefSym;
610 if (Sym.kind() == SymbolKind::S_LPROC32)
611 K = SymbolRecordKind::LocalProcRef;
612 ProcRefSym PS(K);
613 PS.Module = static_cast<uint16_t>(File.ModuleDBI->getModuleIndex());
614 // For some reason, MSVC seems to add one to this value.
615 ++PS.Module;
616 PS.Name = getSymbolName(Sym);
617 PS.SumName = 0;
618 PS.SymOffset = File.ModuleDBI->getNextSymbolOffset();
619 Builder.addGlobalSymbol(PS);
620 break;
621 }
622 default:
623 llvm_unreachable("Invalid symbol kind!");
624 }
625}
626
627static void mergeSymbolRecords(BumpPtrAllocator &Alloc, ObjFile *File,
628 pdb::GSIStreamBuilder &GsiBuilder,
415 const CVIndexMap &IndexMap,629 const CVIndexMap &IndexMap,
630 TypeCollection &IDTable,
416 BinaryStreamRef SymData) {631 BinaryStreamRef SymData) {
417 // FIXME: Improve error recovery by warning and skipping records when632 // FIXME: Improve error recovery by warning and skipping records when
418 // possible.633 // possible.
...@@ -420,11 +635,11 @@ static void mergeSymbolRecords(BumpPtrAllocator &Alloc, ObjectFile *File,...@@ -420,11 +635,11 @@ static void mergeSymbolRecords(BumpPtrAllocator &Alloc, ObjectFile *File,
420 BinaryStreamReader Reader(SymData);635 BinaryStreamReader Reader(SymData);
421 ExitOnErr(Reader.readArray(Syms, Reader.getLength()));636 ExitOnErr(Reader.readArray(Syms, Reader.getLength()));
422 SmallVector<SymbolScope, 4> Scopes;637 SmallVector<SymbolScope, 4> Scopes;
423 for (const CVSymbol &Sym : Syms) {638 for (CVSymbol Sym : Syms) {
424 // Discover type index references in the record. Skip it if we don't know639 // Discover type index references in the record. Skip it if we don't know
425 // where they are.640 // where they are.
426 SmallVector<TiReference, 32> TypeRefs;641 SmallVector<TiReference, 32> TypeRefs;
427 if (!discoverTypeIndices(Sym, TypeRefs)) {642 if (!discoverTypeIndicesInSymbol(Sym, TypeRefs)) {
428 log("ignoring unknown symbol record with kind 0x" + utohexstr(Sym.kind()));643 log("ignoring unknown symbol record with kind 0x" + utohexstr(Sym.kind()));
429 continue;644 continue;
430 }645 }
...@@ -435,17 +650,30 @@ static void mergeSymbolRecords(BumpPtrAllocator &Alloc, ObjectFile *File,...@@ -435,17 +650,30 @@ static void mergeSymbolRecords(BumpPtrAllocator &Alloc, ObjectFile *File,
435 // Re-map all the type index references.650 // Re-map all the type index references.
436 MutableArrayRef<uint8_t> Contents =651 MutableArrayRef<uint8_t> Contents =
437 NewData.drop_front(sizeof(RecordPrefix));652 NewData.drop_front(sizeof(RecordPrefix));
438 remapTypesInSymbolRecord(File, Contents, IndexMap, TypeRefs);653 remapTypesInSymbolRecord(File, Sym.kind(), Contents, IndexMap, TypeRefs);
654
655 // An object file may have S_xxx_ID symbols, but these get converted to
656 // "real" symbols in a PDB.
657 translateIdSymbols(NewData, IDTable);
658
659 SymbolKind NewKind = symbolKind(NewData);
439660
440 // Fill in "Parent" and "End" fields by maintaining a stack of scopes.661 // Fill in "Parent" and "End" fields by maintaining a stack of scopes.
441 CVSymbol NewSym(Sym.kind(), NewData);662 CVSymbol NewSym(NewKind, NewData);
442 if (symbolOpensScope(Sym.kind()))663 if (symbolOpensScope(NewKind))
443 scopeStackOpen(Scopes, File->ModuleDBI->getNextSymbolOffset(), NewSym);664 scopeStackOpen(Scopes, File->ModuleDBI->getNextSymbolOffset(), NewSym);
444 else if (symbolEndsScope(Sym.kind()))665 else if (symbolEndsScope(NewKind))
445 scopeStackClose(Scopes, File->ModuleDBI->getNextSymbolOffset(), File);666 scopeStackClose(Scopes, File->ModuleDBI->getNextSymbolOffset(), File);
446667
668 // Add the symbol to the globals stream if necessary. Do this before adding
669 // the symbol to the module since we may need to get the next symbol offset,
670 // and writing to the module's symbol stream will update that offset.
671 if (symbolGoesInGlobalsStream(NewSym))
672 addGlobalSymbol(GsiBuilder, *File, NewSym);
673
447 // Add the symbol to the module.674 // Add the symbol to the module.
448 File->ModuleDBI->addSymbol(NewSym);675 if (symbolGoesInModuleStream(NewSym))
676 File->ModuleDBI->addSymbol(NewSym);
449 }677 }
450}678}
451679
...@@ -460,7 +688,7 @@ static ArrayRef<uint8_t> relocateDebugChunk(BumpPtrAllocator &Alloc,...@@ -460,7 +688,7 @@ static ArrayRef<uint8_t> relocateDebugChunk(BumpPtrAllocator &Alloc,
460 ".debug$S");688 ".debug$S");
461}689}
462690
463void PDBLinker::addObjectFile(ObjectFile *File) {691void PDBLinker::addObjFile(ObjFile *File) {
464 // Add a module descriptor for every object file. We need to put an absolute692 // Add a module descriptor for every object file. We need to put an absolute
465 // path to the object into the PDB. If this is a plain object, we make its693 // path to the object into the PDB. If this is a plain object, we make its
466 // path absolute. If it's an object in an archive, we make the archive path694 // path absolute. If it's an object in an archive, we make the archive path
...@@ -511,7 +739,13 @@ void PDBLinker::addObjectFile(ObjectFile *File) {...@@ -511,7 +739,13 @@ void PDBLinker::addObjectFile(ObjectFile *File) {
511 File->ModuleDBI->addDebugSubsection(SS);739 File->ModuleDBI->addDebugSubsection(SS);
512 break;740 break;
513 case DebugSubsectionKind::Symbols:741 case DebugSubsectionKind::Symbols:
514 mergeSymbolRecords(Alloc, File, IndexMap, SS.getRecordData());742 if (Config->DebugGHashes) {
743 mergeSymbolRecords(Alloc, File, Builder.getGsiBuilder(), IndexMap,
744 GlobalIDTable, SS.getRecordData());
745 } else {
746 mergeSymbolRecords(Alloc, File, Builder.getGsiBuilder(), IndexMap,
747 IDTable, SS.getRecordData());
748 }
515 break;749 break;
516 default:750 default:
517 // FIXME: Process the rest of the subsections.751 // FIXME: Process the rest of the subsections.
...@@ -539,45 +773,88 @@ void PDBLinker::addObjectFile(ObjectFile *File) {...@@ -539,45 +773,88 @@ void PDBLinker::addObjectFile(ObjectFile *File) {
539 }773 }
540}774}
541775
776static PublicSym32 createPublic(Defined *Def) {
777 PublicSym32 Pub(SymbolKind::S_PUB32);
778 Pub.Name = Def->getName();
779 if (auto *D = dyn_cast<DefinedCOFF>(Def)) {
780 if (D->getCOFFSymbol().isFunctionDefinition())
781 Pub.Flags = PublicSymFlags::Function;
782 } else if (isa<DefinedImportThunk>(Def)) {
783 Pub.Flags = PublicSymFlags::Function;
784 }
785
786 OutputSection *OS = Def->getChunk()->getOutputSection();
787 assert(OS && "all publics should be in final image");
788 Pub.Offset = Def->getRVA() - OS->getRVA();
789 Pub.Segment = OS->SectionIndex;
790 return Pub;
791}
792
542// Add all object files to the PDB. Merge .debug$T sections into IpiData and793// Add all object files to the PDB. Merge .debug$T sections into IpiData and
543// TpiData.794// TpiData.
544void PDBLinker::addObjectsToPDB() {795void PDBLinker::addObjectsToPDB() {
545 for (ObjectFile *File : Symtab->ObjectFiles)796 for (ObjFile *File : ObjFile::Instances)
546 addObjectFile(File);797 addObjFile(File);
547798
548 Builder.getStringTableBuilder().setStrings(PDBStrTab);799 Builder.getStringTableBuilder().setStrings(PDBStrTab);
549800
550 // Construct TPI stream contents.801 // Construct TPI and IPI stream contents.
551 addTypeInfo(Builder.getTpiBuilder(), TypeTable);802 if (Config->DebugGHashes) {
552803 addTypeInfo(Builder.getTpiBuilder(), GlobalTypeTable);
553 // Construct IPI stream contents.804 addTypeInfo(Builder.getIpiBuilder(), GlobalIDTable);
554 addTypeInfo(Builder.getIpiBuilder(), IDTable);805 } else {
806 addTypeInfo(Builder.getTpiBuilder(), TypeTable);
807 addTypeInfo(Builder.getIpiBuilder(), IDTable);
808 }
555809
556 // Add public and symbol records stream.810 // Compute the public and global symbols.
811 auto &GsiBuilder = Builder.getGsiBuilder();
812 std::vector<PublicSym32> Publics;
813 Symtab->forEachSymbol([&Publics](Symbol *S) {
814 // Only emit defined, live symbols that have a chunk.
815 auto *Def = dyn_cast<Defined>(S);
816 if (Def && Def->isLive() && Def->getChunk())
817 Publics.push_back(createPublic(Def));
818 });
557819
558 // For now we don't actually write any thing useful to the publics stream, but820 if (!Publics.empty()) {
559 // the act of "getting" it also creates it lazily so that we write an empty821 // Sort the public symbols and add them to the stream.
560 // stream.822 std::sort(Publics.begin(), Publics.end(),
561 (void)Builder.getPublicsBuilder();823 [](const PublicSym32 &L, const PublicSym32 &R) {
824 return L.Name < R.Name;
825 });
826 for (const PublicSym32 &Pub : Publics)
827 GsiBuilder.addPublicSymbol(Pub);
828 }
562}829}
563830
564static void addLinkerModuleSymbols(StringRef Path,831static void addCommonLinkerModuleSymbols(StringRef Path,
565 pdb::DbiModuleDescriptorBuilder &Mod,832 pdb::DbiModuleDescriptorBuilder &Mod,
566 BumpPtrAllocator &Allocator) {833 BumpPtrAllocator &Allocator) {
567 codeview::SymbolSerializer Serializer(Allocator, CodeViewContainer::Pdb);834 ObjNameSym ONS(SymbolRecordKind::ObjNameSym);
568 codeview::ObjNameSym ONS(SymbolRecordKind::ObjNameSym);835 Compile3Sym CS(SymbolRecordKind::Compile3Sym);
569 codeview::Compile3Sym CS(SymbolRecordKind::Compile3Sym);836 EnvBlockSym EBS(SymbolRecordKind::EnvBlockSym);
570 codeview::EnvBlockSym EBS(SymbolRecordKind::EnvBlockSym);
571837
572 ONS.Name = "* Linker *";838 ONS.Name = "* Linker *";
573 ONS.Signature = 0;839 ONS.Signature = 0;
574840
575 CS.Machine = Config->is64() ? CPUType::X64 : CPUType::Intel80386;841 CS.Machine = Config->is64() ? CPUType::X64 : CPUType::Intel80386;
842 // Interestingly, if we set the string to 0.0.0.0, then when trying to view
843 // local variables WinDbg emits an error that private symbols are not present.
844 // By setting this to a valid MSVC linker version string, local variables are
845 // displayed properly. As such, even though it is not representative of
846 // LLVM's version information, we need this for compatibility.
576 CS.Flags = CompileSym3Flags::None;847 CS.Flags = CompileSym3Flags::None;
577 CS.VersionBackendBuild = 0;848 CS.VersionBackendBuild = 25019;
578 CS.VersionBackendMajor = 0;849 CS.VersionBackendMajor = 14;
579 CS.VersionBackendMinor = 0;850 CS.VersionBackendMinor = 10;
580 CS.VersionBackendQFE = 0;851 CS.VersionBackendQFE = 0;
852
853 // MSVC also sets the frontend to 0.0.0.0 since this is specifically for the
854 // linker module (which is by definition a backend), so we don't need to do
855 // anything here. Also, it seems we can use "LLVM Linker" for the linker name
856 // without any problems. Only the backend version has to be hardcoded to a
857 // magic number.
581 CS.VersionFrontendBuild = 0;858 CS.VersionFrontendBuild = 0;
582 CS.VersionFrontendMajor = 0;859 CS.VersionFrontendMajor = 0;
583 CS.VersionFrontendMinor = 0;860 CS.VersionFrontendMinor = 0;
...@@ -592,7 +869,9 @@ static void addLinkerModuleSymbols(StringRef Path,...@@ -592,7 +869,9 @@ static void addLinkerModuleSymbols(StringRef Path,
592 sys::fs::current_path(cwd);869 sys::fs::current_path(cwd);
593 EBS.Fields.push_back(cwd);870 EBS.Fields.push_back(cwd);
594 EBS.Fields.push_back("exe");871 EBS.Fields.push_back("exe");
595 EBS.Fields.push_back(Config->Argv[0]);872 SmallString<64> exe = Config->Argv[0];
873 llvm::sys::fs::make_absolute(exe);
874 EBS.Fields.push_back(exe);
596 EBS.Fields.push_back("pdb");875 EBS.Fields.push_back("pdb");
597 EBS.Fields.push_back(Path);876 EBS.Fields.push_back(Path);
598 EBS.Fields.push_back("cmd");877 EBS.Fields.push_back("cmd");
...@@ -605,17 +884,33 @@ static void addLinkerModuleSymbols(StringRef Path,...@@ -605,17 +884,33 @@ static void addLinkerModuleSymbols(StringRef Path,
605 EBS, Allocator, CodeViewContainer::Pdb));884 EBS, Allocator, CodeViewContainer::Pdb));
606}885}
607886
887static void addLinkerModuleSectionSymbol(pdb::DbiModuleDescriptorBuilder &Mod,
888 OutputSection &OS,
889 BumpPtrAllocator &Allocator) {
890 SectionSym Sym(SymbolRecordKind::SectionSym);
891 Sym.Alignment = 12; // 2^12 = 4KB
892 Sym.Characteristics = OS.getCharacteristics();
893 Sym.Length = OS.getVirtualSize();
894 Sym.Name = OS.getName();
895 Sym.Rva = OS.getRVA();
896 Sym.SectionNumber = OS.SectionIndex;
897 Mod.addSymbol(codeview::SymbolSerializer::writeOneSymbol(
898 Sym, Allocator, CodeViewContainer::Pdb));
899}
900
608// Creates a PDB file.901// Creates a PDB file.
609void coff::createPDB(SymbolTable *Symtab, ArrayRef<uint8_t> SectionTable,902void coff::createPDB(SymbolTable *Symtab,
610 const llvm::codeview::DebugInfo *DI) {903 ArrayRef<OutputSection *> OutputSections,
904 ArrayRef<uint8_t> SectionTable,
905 const llvm::codeview::DebugInfo &BuildId) {
611 PDBLinker PDB(Symtab);906 PDBLinker PDB(Symtab);
612 PDB.initialize(DI);907 PDB.initialize(BuildId);
613 PDB.addObjectsToPDB();908 PDB.addObjectsToPDB();
614 PDB.addSections(SectionTable);909 PDB.addSections(OutputSections, SectionTable);
615 PDB.commit();910 PDB.commit();
616}911}
617912
618void PDBLinker::initialize(const llvm::codeview::DebugInfo *DI) {913void PDBLinker::initialize(const llvm::codeview::DebugInfo &BuildId) {
619 ExitOnErr(Builder.initialize(4096)); // 4096 is blocksize914 ExitOnErr(Builder.initialize(4096)); // 4096 is blocksize
620915
621 // Create streams in MSF for predefined streams, namely916 // Create streams in MSF for predefined streams, namely
...@@ -625,41 +920,71 @@ void PDBLinker::initialize(const llvm::codeview::DebugInfo *DI) {...@@ -625,41 +920,71 @@ void PDBLinker::initialize(const llvm::codeview::DebugInfo *DI) {
625920
626 // Add an Info stream.921 // Add an Info stream.
627 auto &InfoBuilder = Builder.getInfoBuilder();922 auto &InfoBuilder = Builder.getInfoBuilder();
628 InfoBuilder.setAge(DI ? DI->PDB70.Age : 0);923 InfoBuilder.setAge(BuildId.PDB70.Age);
629924
630 GUID uuid{};925 GUID uuid;
631 if (DI)926 memcpy(&uuid, &BuildId.PDB70.Signature, sizeof(uuid));
632 memcpy(&uuid, &DI->PDB70.Signature, sizeof(uuid));
633 InfoBuilder.setGuid(uuid);927 InfoBuilder.setGuid(uuid);
634 InfoBuilder.setSignature(time(nullptr));928 InfoBuilder.setSignature(time(nullptr));
635 InfoBuilder.setVersion(pdb::PdbRaw_ImplVer::PdbImplVC70);929 InfoBuilder.setVersion(pdb::PdbRaw_ImplVer::PdbImplVC70);
636930
637 // Add an empty DBI stream.931 // Add an empty DBI stream.
638 pdb::DbiStreamBuilder &DbiBuilder = Builder.getDbiBuilder();932 pdb::DbiStreamBuilder &DbiBuilder = Builder.getDbiBuilder();
933 DbiBuilder.setAge(BuildId.PDB70.Age);
639 DbiBuilder.setVersionHeader(pdb::PdbDbiV70);934 DbiBuilder.setVersionHeader(pdb::PdbDbiV70);
640 ExitOnErr(DbiBuilder.addDbgStream(pdb::DbgHeaderType::NewFPO, {}));935 ExitOnErr(DbiBuilder.addDbgStream(pdb::DbgHeaderType::NewFPO, {}));
641}936}
642937
643void PDBLinker::addSections(ArrayRef<uint8_t> SectionTable) {938void PDBLinker::addSectionContrib(pdb::DbiModuleDescriptorBuilder &LinkerModule,
644 // Add Section Contributions.939 OutputSection *OS, Chunk *C) {
645 pdb::DbiStreamBuilder &DbiBuilder = Builder.getDbiBuilder();940 pdb::SectionContrib SC;
646 addSectionContribs(Symtab, DbiBuilder);941 memset(&SC, 0, sizeof(SC));
647942 SC.ISect = OS->SectionIndex;
648 // Add Section Map stream.943 SC.Off = C->getRVA() - OS->getRVA();
649 ArrayRef<object::coff_section> Sections = {944 SC.Size = C->getSize();
650 (const object::coff_section *)SectionTable.data(),945 if (auto *SecChunk = dyn_cast<SectionChunk>(C)) {
651 SectionTable.size() / sizeof(object::coff_section)};946 SC.Characteristics = SecChunk->Header->Characteristics;
652 SectionMap = pdb::DbiStreamBuilder::createSectionMap(Sections);947 SC.Imod = SecChunk->File->ModuleDBI->getModuleIndex();
653 DbiBuilder.setSectionMap(SectionMap);948 ArrayRef<uint8_t> Contents = SecChunk->getContents();
949 JamCRC CRC(0);
950 ArrayRef<char> CharContents = makeArrayRef(
951 reinterpret_cast<const char *>(Contents.data()), Contents.size());
952 CRC.update(CharContents);
953 SC.DataCrc = CRC.getCRC();
954 } else {
955 SC.Characteristics = OS->getCharacteristics();
956 // FIXME: When we start creating DBI for import libraries, use those here.
957 SC.Imod = LinkerModule.getModuleIndex();
958 }
959 SC.RelocCrc = 0; // FIXME
960 Builder.getDbiBuilder().addSectionContrib(SC);
961}
654962
963void PDBLinker::addSections(ArrayRef<OutputSection *> OutputSections,
964 ArrayRef<uint8_t> SectionTable) {
655 // It's not entirely clear what this is, but the * Linker * module uses it.965 // It's not entirely clear what this is, but the * Linker * module uses it.
966 pdb::DbiStreamBuilder &DbiBuilder = Builder.getDbiBuilder();
656 NativePath = Config->PDBPath;967 NativePath = Config->PDBPath;
657 sys::fs::make_absolute(NativePath);968 sys::fs::make_absolute(NativePath);
658 sys::path::native(NativePath, sys::path::Style::windows);969 sys::path::native(NativePath, sys::path::Style::windows);
659 uint32_t PdbFilePathNI = DbiBuilder.addECName(NativePath);970 uint32_t PdbFilePathNI = DbiBuilder.addECName(NativePath);
660 auto &LinkerModule = ExitOnErr(DbiBuilder.addModuleInfo("* Linker *"));971 auto &LinkerModule = ExitOnErr(DbiBuilder.addModuleInfo("* Linker *"));
661 LinkerModule.setPdbFilePathNI(PdbFilePathNI);972 LinkerModule.setPdbFilePathNI(PdbFilePathNI);
662 addLinkerModuleSymbols(NativePath, LinkerModule, Alloc);973 addCommonLinkerModuleSymbols(NativePath, LinkerModule, Alloc);
974
975 // Add section contributions. They must be ordered by ascending RVA.
976 for (OutputSection *OS : OutputSections) {
977 addLinkerModuleSectionSymbol(LinkerModule, *OS, Alloc);
978 for (Chunk *C : OS->getChunks())
979 addSectionContrib(LinkerModule, OS, C);
980 }
981
982 // Add Section Map stream.
983 ArrayRef<object::coff_section> Sections = {
984 (const object::coff_section *)SectionTable.data(),
985 SectionTable.size() / sizeof(object::coff_section)};
986 SectionMap = pdb::DbiStreamBuilder::createSectionMap(Sections);
987 DbiBuilder.setSectionMap(SectionMap);
663988
664 // Add COFF section header stream.989 // Add COFF section header stream.
665 ExitOnErr(990 ExitOnErr(
deps/lld/COFF/PDB.h+5-2
...@@ -21,10 +21,13 @@ union DebugInfo;...@@ -21,10 +21,13 @@ union DebugInfo;
2121
22namespace lld {22namespace lld {
23namespace coff {23namespace coff {
24class OutputSection;
24class SymbolTable;25class SymbolTable;
2526
26void createPDB(SymbolTable *Symtab, llvm::ArrayRef<uint8_t> SectionTable,27void createPDB(SymbolTable *Symtab,
27 const llvm::codeview::DebugInfo *DI);28 llvm::ArrayRef<OutputSection *> OutputSections,
29 llvm::ArrayRef<uint8_t> SectionTable,
30 const llvm::codeview::DebugInfo &BuildId);
28}31}
29}32}
3033
deps/lld/COFF/Strings.cpp+1-1
...@@ -20,7 +20,7 @@ using namespace lld;...@@ -20,7 +20,7 @@ using namespace lld;
20using namespace lld::coff;20using namespace lld::coff;
21using namespace llvm;21using namespace llvm;
2222
23Optional<std::string> coff::demangle(StringRef S) {23Optional<std::string> coff::demangleMSVC(StringRef S) {
24#if defined(_MSC_VER)24#if defined(_MSC_VER)
25 // UnDecorateSymbolName is not thread-safe, so we need a mutex.25 // UnDecorateSymbolName is not thread-safe, so we need a mutex.
26 static std::mutex Mu;26 static std::mutex Mu;
deps/lld/COFF/Strings.h+1-1
...@@ -16,7 +16,7 @@...@@ -16,7 +16,7 @@
1616
17namespace lld {17namespace lld {
18namespace coff {18namespace coff {
19llvm::Optional<std::string> demangle(llvm::StringRef S);19llvm::Optional<std::string> demangleMSVC(llvm::StringRef S);
20}20}
21}21}
2222
deps/lld/COFF/SymbolTable.cpp+148-128
...@@ -10,10 +10,10 @@...@@ -10,10 +10,10 @@
10#include "SymbolTable.h"10#include "SymbolTable.h"
11#include "Config.h"11#include "Config.h"
12#include "Driver.h"12#include "Driver.h"
13#include "Error.h"
14#include "LTO.h"13#include "LTO.h"
15#include "Memory.h"
16#include "Symbols.h"14#include "Symbols.h"
15#include "lld/Common/ErrorHandler.h"
16#include "lld/Common/Memory.h"
17#include "llvm/IR/LLVMContext.h"17#include "llvm/IR/LLVMContext.h"
18#include "llvm/Support/Debug.h"18#include "llvm/Support/Debug.h"
19#include "llvm/Support/raw_ostream.h"19#include "llvm/Support/raw_ostream.h"
...@@ -24,36 +24,6 @@ using namespace llvm;...@@ -24,36 +24,6 @@ using namespace llvm;
24namespace lld {24namespace lld {
25namespace coff {25namespace coff {
2626
27enum SymbolPreference {
28 SP_EXISTING = -1,
29 SP_CONFLICT = 0,
30 SP_NEW = 1,
31};
32
33/// Checks if an existing symbol S should be kept or replaced by a new symbol.
34/// Returns SP_EXISTING when S should be kept, SP_NEW when the new symbol
35/// should be kept, and SP_CONFLICT if no valid resolution exists.
36static SymbolPreference compareDefined(Symbol *S, bool WasInserted,
37 bool NewIsCOMDAT) {
38 // If the symbol wasn't previously known, the new symbol wins by default.
39 if (WasInserted || !isa<Defined>(S->body()))
40 return SP_NEW;
41
42 // If the existing symbol is a DefinedRegular, both it and the new symbol
43 // must be comdats. In that case, we have no reason to prefer one symbol
44 // over the other, and we keep the existing one. If one of the symbols
45 // is not a comdat, we report a conflict.
46 if (auto *R = dyn_cast<DefinedRegular>(S->body())) {
47 if (NewIsCOMDAT && R->isCOMDAT())
48 return SP_EXISTING;
49 else
50 return SP_CONFLICT;
51 }
52
53 // Existing symbol is not a DefinedRegular; new symbol wins.
54 return SP_NEW;
55}
56
57SymbolTable *Symtab;27SymbolTable *Symtab;
5828
59void SymbolTable::addFile(InputFile *File) {29void SymbolTable::addFile(InputFile *File) {
...@@ -68,12 +38,12 @@ void SymbolTable::addFile(InputFile *File) {...@@ -68,12 +38,12 @@ void SymbolTable::addFile(InputFile *File) {
68 " conflicts with " + machineToStr(Config->Machine));38 " conflicts with " + machineToStr(Config->Machine));
69 }39 }
7040
71 if (auto *F = dyn_cast<ObjectFile>(File)) {41 if (auto *F = dyn_cast<ObjFile>(File)) {
72 ObjectFiles.push_back(F);42 ObjFile::Instances.push_back(F);
73 } else if (auto *F = dyn_cast<BitcodeFile>(File)) {43 } else if (auto *F = dyn_cast<BitcodeFile>(File)) {
74 BitcodeFiles.push_back(F);44 BitcodeFile::Instances.push_back(F);
75 } else if (auto *F = dyn_cast<ImportFile>(File)) {45 } else if (auto *F = dyn_cast<ImportFile>(File)) {
76 ImportFiles.push_back(F);46 ImportFile::Instances.push_back(F);
77 }47 }
7848
79 StringRef S = File->getDirectives();49 StringRef S = File->getDirectives();
...@@ -84,70 +54,95 @@ void SymbolTable::addFile(InputFile *File) {...@@ -84,70 +54,95 @@ void SymbolTable::addFile(InputFile *File) {
84 Driver->parseDirectives(S);54 Driver->parseDirectives(S);
85}55}
8656
57static void errorOrWarn(const Twine &S) {
58 if (Config->Force)
59 warn(S);
60 else
61 error(S);
62}
63
87void SymbolTable::reportRemainingUndefines() {64void SymbolTable::reportRemainingUndefines() {
88 SmallPtrSet<SymbolBody *, 8> Undefs;65 SmallPtrSet<Symbol *, 8> Undefs;
89 for (auto &I : Symtab) {66 DenseMap<Symbol *, Symbol *> LocalImports;
67
68 for (auto &I : SymMap) {
90 Symbol *Sym = I.second;69 Symbol *Sym = I.second;
91 auto *Undef = dyn_cast<Undefined>(Sym->body());70 auto *Undef = dyn_cast<Undefined>(Sym);
92 if (!Undef)71 if (!Undef)
93 continue;72 continue;
94 if (!Sym->IsUsedInRegularObj)73 if (!Sym->IsUsedInRegularObj)
95 continue;74 continue;
75
96 StringRef Name = Undef->getName();76 StringRef Name = Undef->getName();
77
97 // A weak alias may have been resolved, so check for that.78 // A weak alias may have been resolved, so check for that.
98 if (Defined *D = Undef->getWeakAlias()) {79 if (Defined *D = Undef->getWeakAlias()) {
99 // We resolve weak aliases by replacing the alias's SymbolBody with the80 // We want to replace Sym with D. However, we can't just blindly
100 // target's SymbolBody. This causes all SymbolBody pointers referring to81 // copy sizeof(SymbolUnion) bytes from D to Sym because D may be an
101 // the old symbol to instead refer to the new symbol. However, we can't82 // internal symbol, and internal symbols are stored as "unparented"
102 // just blindly copy sizeof(Symbol::Body) bytes from D to Sym->Body83 // Symbols. For that reason we need to check which type of symbol we
103 // because D may be an internal symbol, and internal symbols are stored as84 // are dealing with and copy the correct number of bytes.
104 // "unparented" SymbolBodies. For that reason we need to check which type
105 // of symbol we are dealing with and copy the correct number of bytes.
106 if (isa<DefinedRegular>(D))85 if (isa<DefinedRegular>(D))
107 memcpy(Sym->Body.buffer, D, sizeof(DefinedRegular));86 memcpy(Sym, D, sizeof(DefinedRegular));
108 else if (isa<DefinedAbsolute>(D))87 else if (isa<DefinedAbsolute>(D))
109 memcpy(Sym->Body.buffer, D, sizeof(DefinedAbsolute));88 memcpy(Sym, D, sizeof(DefinedAbsolute));
110 else89 else
111 // No other internal symbols are possible.90 memcpy(Sym, D, sizeof(SymbolUnion));
112 Sym->Body = D->symbol()->Body;
113 continue;91 continue;
114 }92 }
93
115 // If we can resolve a symbol by removing __imp_ prefix, do that.94 // If we can resolve a symbol by removing __imp_ prefix, do that.
116 // This odd rule is for compatibility with MSVC linker.95 // This odd rule is for compatibility with MSVC linker.
117 if (Name.startswith("__imp_")) {96 if (Name.startswith("__imp_")) {
118 Symbol *Imp = find(Name.substr(strlen("__imp_")));97 Symbol *Imp = find(Name.substr(strlen("__imp_")));
119 if (Imp && isa<Defined>(Imp->body())) {98 if (Imp && isa<Defined>(Imp)) {
120 auto *D = cast<Defined>(Imp->body());99 auto *D = cast<Defined>(Imp);
121 replaceBody<DefinedLocalImport>(Sym, Name, D);100 replaceSymbol<DefinedLocalImport>(Sym, Name, D);
122 LocalImportChunks.push_back(101 LocalImportChunks.push_back(cast<DefinedLocalImport>(Sym)->getChunk());
123 cast<DefinedLocalImport>(Sym->body())->getChunk());102 LocalImports[Sym] = D;
124 continue;103 continue;
125 }104 }
126 }105 }
106
127 // Remaining undefined symbols are not fatal if /force is specified.107 // Remaining undefined symbols are not fatal if /force is specified.
128 // They are replaced with dummy defined symbols.108 // They are replaced with dummy defined symbols.
129 if (Config->Force)109 if (Config->Force)
130 replaceBody<DefinedAbsolute>(Sym, Name, 0);110 replaceSymbol<DefinedAbsolute>(Sym, Name, 0);
131 Undefs.insert(Sym->body());111 Undefs.insert(Sym);
132 }112 }
133 if (Undefs.empty())113
114 if (Undefs.empty() && LocalImports.empty())
134 return;115 return;
135 for (SymbolBody *B : Config->GCRoot)116
117 for (Symbol *B : Config->GCRoot) {
136 if (Undefs.count(B))118 if (Undefs.count(B))
137 warn("<root>: undefined symbol: " + B->getName());119 errorOrWarn("<root>: undefined symbol: " + B->getName());
138 for (ObjectFile *File : ObjectFiles)120 if (Config->WarnLocallyDefinedImported)
139 for (SymbolBody *Sym : File->getSymbols())121 if (Symbol *Imp = LocalImports.lookup(B))
122 warn("<root>: locally defined symbol imported: " + Imp->getName() +
123 " (defined in " + toString(Imp->getFile()) + ")");
124 }
125
126 for (ObjFile *File : ObjFile::Instances) {
127 for (Symbol *Sym : File->getSymbols()) {
128 if (!Sym)
129 continue;
140 if (Undefs.count(Sym))130 if (Undefs.count(Sym))
141 warn(toString(File) + ": undefined symbol: " + Sym->getName());131 errorOrWarn(toString(File) + ": undefined symbol: " + Sym->getName());
142 if (!Config->Force)132 if (Config->WarnLocallyDefinedImported)
143 fatal("link failed");133 if (Symbol *Imp = LocalImports.lookup(Sym))
134 warn(toString(File) + ": locally defined symbol imported: " +
135 Imp->getName() + " (defined in " + toString(Imp->getFile()) +
136 ")");
137 }
138 }
144}139}
145140
146std::pair<Symbol *, bool> SymbolTable::insert(StringRef Name) {141std::pair<Symbol *, bool> SymbolTable::insert(StringRef Name) {
147 Symbol *&Sym = Symtab[CachedHashStringRef(Name)];142 Symbol *&Sym = SymMap[CachedHashStringRef(Name)];
148 if (Sym)143 if (Sym)
149 return {Sym, false};144 return {Sym, false};
150 Sym = make<Symbol>();145 Sym = (Symbol *)make<SymbolUnion>();
151 Sym->IsUsedInRegularObj = false;146 Sym->IsUsedInRegularObj = false;
152 Sym->PendingArchiveLoad = false;147 Sym->PendingArchiveLoad = false;
153 return {Sym, true};148 return {Sym, true};
...@@ -160,11 +155,11 @@ Symbol *SymbolTable::addUndefined(StringRef Name, InputFile *F,...@@ -160,11 +155,11 @@ Symbol *SymbolTable::addUndefined(StringRef Name, InputFile *F,
160 std::tie(S, WasInserted) = insert(Name);155 std::tie(S, WasInserted) = insert(Name);
161 if (!F || !isa<BitcodeFile>(F))156 if (!F || !isa<BitcodeFile>(F))
162 S->IsUsedInRegularObj = true;157 S->IsUsedInRegularObj = true;
163 if (WasInserted || (isa<Lazy>(S->body()) && IsWeakAlias)) {158 if (WasInserted || (isa<Lazy>(S) && IsWeakAlias)) {
164 replaceBody<Undefined>(S, Name);159 replaceSymbol<Undefined>(S, Name);
165 return S;160 return S;
166 }161 }
167 if (auto *L = dyn_cast<Lazy>(S->body())) {162 if (auto *L = dyn_cast<Lazy>(S)) {
168 if (!S->PendingArchiveLoad) {163 if (!S->PendingArchiveLoad) {
169 S->PendingArchiveLoad = true;164 S->PendingArchiveLoad = true;
170 L->File->addMember(&L->Sym);165 L->File->addMember(&L->Sym);
...@@ -179,10 +174,10 @@ void SymbolTable::addLazy(ArchiveFile *F, const Archive::Symbol Sym) {...@@ -179,10 +174,10 @@ void SymbolTable::addLazy(ArchiveFile *F, const Archive::Symbol Sym) {
179 bool WasInserted;174 bool WasInserted;
180 std::tie(S, WasInserted) = insert(Name);175 std::tie(S, WasInserted) = insert(Name);
181 if (WasInserted) {176 if (WasInserted) {
182 replaceBody<Lazy>(S, F, Sym);177 replaceSymbol<Lazy>(S, F, Sym);
183 return;178 return;
184 }179 }
185 auto *U = dyn_cast<Undefined>(S->body());180 auto *U = dyn_cast<Undefined>(S);
186 if (!U || U->WeakAlias || S->PendingArchiveLoad)181 if (!U || U->WeakAlias || S->PendingArchiveLoad)
187 return;182 return;
188 S->PendingArchiveLoad = true;183 S->PendingArchiveLoad = true;
...@@ -190,9 +185,8 @@ void SymbolTable::addLazy(ArchiveFile *F, const Archive::Symbol Sym) {...@@ -190,9 +185,8 @@ void SymbolTable::addLazy(ArchiveFile *F, const Archive::Symbol Sym) {
190}185}
191186
192void SymbolTable::reportDuplicate(Symbol *Existing, InputFile *NewFile) {187void SymbolTable::reportDuplicate(Symbol *Existing, InputFile *NewFile) {
193 error("duplicate symbol: " + toString(*Existing->body()) + " in " +188 error("duplicate symbol: " + toString(*Existing) + " in " +
194 toString(Existing->body()->getFile()) + " and in " +189 toString(Existing->getFile()) + " and in " + toString(NewFile));
195 (NewFile ? toString(NewFile) : "(internal)"));
196}190}
197191
198Symbol *SymbolTable::addAbsolute(StringRef N, COFFSymbolRef Sym) {192Symbol *SymbolTable::addAbsolute(StringRef N, COFFSymbolRef Sym) {
...@@ -200,9 +194,9 @@ Symbol *SymbolTable::addAbsolute(StringRef N, COFFSymbolRef Sym) {...@@ -200,9 +194,9 @@ Symbol *SymbolTable::addAbsolute(StringRef N, COFFSymbolRef Sym) {
200 bool WasInserted;194 bool WasInserted;
201 std::tie(S, WasInserted) = insert(N);195 std::tie(S, WasInserted) = insert(N);
202 S->IsUsedInRegularObj = true;196 S->IsUsedInRegularObj = true;
203 if (WasInserted || isa<Undefined>(S->body()) || isa<Lazy>(S->body()))197 if (WasInserted || isa<Undefined>(S) || isa<Lazy>(S))
204 replaceBody<DefinedAbsolute>(S, N, Sym);198 replaceSymbol<DefinedAbsolute>(S, N, Sym);
205 else if (!isa<DefinedCOFF>(S->body()))199 else if (!isa<DefinedCOFF>(S))
206 reportDuplicate(S, nullptr);200 reportDuplicate(S, nullptr);
207 return S;201 return S;
208}202}
...@@ -212,9 +206,9 @@ Symbol *SymbolTable::addAbsolute(StringRef N, uint64_t VA) {...@@ -212,9 +206,9 @@ Symbol *SymbolTable::addAbsolute(StringRef N, uint64_t VA) {
212 bool WasInserted;206 bool WasInserted;
213 std::tie(S, WasInserted) = insert(N);207 std::tie(S, WasInserted) = insert(N);
214 S->IsUsedInRegularObj = true;208 S->IsUsedInRegularObj = true;
215 if (WasInserted || isa<Undefined>(S->body()) || isa<Lazy>(S->body()))209 if (WasInserted || isa<Undefined>(S) || isa<Lazy>(S))
216 replaceBody<DefinedAbsolute>(S, N, VA);210 replaceSymbol<DefinedAbsolute>(S, N, VA);
217 else if (!isa<DefinedCOFF>(S->body()))211 else if (!isa<DefinedCOFF>(S))
218 reportDuplicate(S, nullptr);212 reportDuplicate(S, nullptr);
219 return S;213 return S;
220}214}
...@@ -224,14 +218,14 @@ Symbol *SymbolTable::addSynthetic(StringRef N, Chunk *C) {...@@ -224,14 +218,14 @@ Symbol *SymbolTable::addSynthetic(StringRef N, Chunk *C) {
224 bool WasInserted;218 bool WasInserted;
225 std::tie(S, WasInserted) = insert(N);219 std::tie(S, WasInserted) = insert(N);
226 S->IsUsedInRegularObj = true;220 S->IsUsedInRegularObj = true;
227 if (WasInserted || isa<Undefined>(S->body()) || isa<Lazy>(S->body()))221 if (WasInserted || isa<Undefined>(S) || isa<Lazy>(S))
228 replaceBody<DefinedSynthetic>(S, N, C);222 replaceSymbol<DefinedSynthetic>(S, N, C);
229 else if (!isa<DefinedCOFF>(S->body()))223 else if (!isa<DefinedCOFF>(S))
230 reportDuplicate(S, nullptr);224 reportDuplicate(S, nullptr);
231 return S;225 return S;
232}226}
233227
234Symbol *SymbolTable::addRegular(InputFile *F, StringRef N, bool IsCOMDAT,228Symbol *SymbolTable::addRegular(InputFile *F, StringRef N,
235 const coff_symbol_generic *Sym,229 const coff_symbol_generic *Sym,
236 SectionChunk *C) {230 SectionChunk *C) {
237 Symbol *S;231 Symbol *S;
...@@ -239,21 +233,32 @@ Symbol *SymbolTable::addRegular(InputFile *F, StringRef N, bool IsCOMDAT,...@@ -239,21 +233,32 @@ Symbol *SymbolTable::addRegular(InputFile *F, StringRef N, bool IsCOMDAT,
239 std::tie(S, WasInserted) = insert(N);233 std::tie(S, WasInserted) = insert(N);
240 if (!isa<BitcodeFile>(F))234 if (!isa<BitcodeFile>(F))
241 S->IsUsedInRegularObj = true;235 S->IsUsedInRegularObj = true;
242 SymbolPreference SP = compareDefined(S, WasInserted, IsCOMDAT);236 if (WasInserted || !isa<DefinedRegular>(S))
243 if (SP == SP_CONFLICT) {237 replaceSymbol<DefinedRegular>(S, F, N, /*IsCOMDAT*/ false,
238 /*IsExternal*/ true, Sym, C);
239 else
244 reportDuplicate(S, F);240 reportDuplicate(S, F);
245 } else if (SP == SP_NEW) {
246 replaceBody<DefinedRegular>(S, F, N, IsCOMDAT, /*IsExternal*/ true, Sym, C);
247 } else if (SP == SP_EXISTING && IsCOMDAT && C) {
248 C->markDiscarded();
249 // Discard associative chunks that we've parsed so far. No need to recurse
250 // because an associative section cannot have children.
251 for (SectionChunk *Child : C->children())
252 Child->markDiscarded();
253 }
254 return S;241 return S;
255}242}
256243
244std::pair<Symbol *, bool>
245SymbolTable::addComdat(InputFile *F, StringRef N,
246 const coff_symbol_generic *Sym) {
247 Symbol *S;
248 bool WasInserted;
249 std::tie(S, WasInserted) = insert(N);
250 if (!isa<BitcodeFile>(F))
251 S->IsUsedInRegularObj = true;
252 if (WasInserted || !isa<DefinedRegular>(S)) {
253 replaceSymbol<DefinedRegular>(S, F, N, /*IsCOMDAT*/ true,
254 /*IsExternal*/ true, Sym, nullptr);
255 return {S, true};
256 }
257 if (!cast<DefinedRegular>(S)->isCOMDAT())
258 reportDuplicate(S, F);
259 return {S, false};
260}
261
257Symbol *SymbolTable::addCommon(InputFile *F, StringRef N, uint64_t Size,262Symbol *SymbolTable::addCommon(InputFile *F, StringRef N, uint64_t Size,
258 const coff_symbol_generic *Sym, CommonChunk *C) {263 const coff_symbol_generic *Sym, CommonChunk *C) {
259 Symbol *S;264 Symbol *S;
...@@ -261,51 +266,56 @@ Symbol *SymbolTable::addCommon(InputFile *F, StringRef N, uint64_t Size,...@@ -261,51 +266,56 @@ Symbol *SymbolTable::addCommon(InputFile *F, StringRef N, uint64_t Size,
261 std::tie(S, WasInserted) = insert(N);266 std::tie(S, WasInserted) = insert(N);
262 if (!isa<BitcodeFile>(F))267 if (!isa<BitcodeFile>(F))
263 S->IsUsedInRegularObj = true;268 S->IsUsedInRegularObj = true;
264 if (WasInserted || !isa<DefinedCOFF>(S->body()))269 if (WasInserted || !isa<DefinedCOFF>(S))
265 replaceBody<DefinedCommon>(S, F, N, Size, Sym, C);270 replaceSymbol<DefinedCommon>(S, F, N, Size, Sym, C);
266 else if (auto *DC = dyn_cast<DefinedCommon>(S->body()))271 else if (auto *DC = dyn_cast<DefinedCommon>(S))
267 if (Size > DC->getSize())272 if (Size > DC->getSize())
268 replaceBody<DefinedCommon>(S, F, N, Size, Sym, C);273 replaceSymbol<DefinedCommon>(S, F, N, Size, Sym, C);
269 return S;274 return S;
270}275}
271276
272Symbol *SymbolTable::addImportData(StringRef N, ImportFile *F) {277DefinedImportData *SymbolTable::addImportData(StringRef N, ImportFile *F) {
273 Symbol *S;278 Symbol *S;
274 bool WasInserted;279 bool WasInserted;
275 std::tie(S, WasInserted) = insert(N);280 std::tie(S, WasInserted) = insert(N);
276 S->IsUsedInRegularObj = true;281 S->IsUsedInRegularObj = true;
277 if (WasInserted || isa<Undefined>(S->body()) || isa<Lazy>(S->body()))282 if (WasInserted || isa<Undefined>(S) || isa<Lazy>(S)) {
278 replaceBody<DefinedImportData>(S, N, F);283 replaceSymbol<DefinedImportData>(S, N, F);
279 else if (!isa<DefinedCOFF>(S->body()))284 return cast<DefinedImportData>(S);
280 reportDuplicate(S, nullptr);285 }
281 return S;286
287 reportDuplicate(S, F);
288 return nullptr;
282}289}
283290
284Symbol *SymbolTable::addImportThunk(StringRef Name, DefinedImportData *ID,291DefinedImportThunk *SymbolTable::addImportThunk(StringRef Name,
285 uint16_t Machine) {292 DefinedImportData *ID,
293 uint16_t Machine) {
286 Symbol *S;294 Symbol *S;
287 bool WasInserted;295 bool WasInserted;
288 std::tie(S, WasInserted) = insert(Name);296 std::tie(S, WasInserted) = insert(Name);
289 S->IsUsedInRegularObj = true;297 S->IsUsedInRegularObj = true;
290 if (WasInserted || isa<Undefined>(S->body()) || isa<Lazy>(S->body()))298 if (WasInserted || isa<Undefined>(S) || isa<Lazy>(S)) {
291 replaceBody<DefinedImportThunk>(S, Name, ID, Machine);299 replaceSymbol<DefinedImportThunk>(S, Name, ID, Machine);
292 else if (!isa<DefinedCOFF>(S->body()))300 return cast<DefinedImportThunk>(S);
293 reportDuplicate(S, nullptr);301 }
294 return S;302
303 reportDuplicate(S, ID->File);
304 return nullptr;
295}305}
296306
297std::vector<Chunk *> SymbolTable::getChunks() {307std::vector<Chunk *> SymbolTable::getChunks() {
298 std::vector<Chunk *> Res;308 std::vector<Chunk *> Res;
299 for (ObjectFile *File : ObjectFiles) {309 for (ObjFile *File : ObjFile::Instances) {
300 std::vector<Chunk *> &V = File->getChunks();310 ArrayRef<Chunk *> V = File->getChunks();
301 Res.insert(Res.end(), V.begin(), V.end());311 Res.insert(Res.end(), V.begin(), V.end());
302 }312 }
303 return Res;313 return Res;
304}314}
305315
306Symbol *SymbolTable::find(StringRef Name) {316Symbol *SymbolTable::find(StringRef Name) {
307 auto It = Symtab.find(CachedHashStringRef(Name));317 auto It = SymMap.find(CachedHashStringRef(Name));
308 if (It == Symtab.end())318 if (It == SymMap.end())
309 return nullptr;319 return nullptr;
310 return It->second;320 return It->second;
311}321}
...@@ -317,7 +327,7 @@ Symbol *SymbolTable::findUnderscore(StringRef Name) {...@@ -317,7 +327,7 @@ Symbol *SymbolTable::findUnderscore(StringRef Name) {
317}327}
318328
319StringRef SymbolTable::findByPrefix(StringRef Prefix) {329StringRef SymbolTable::findByPrefix(StringRef Prefix) {
320 for (auto Pair : Symtab) {330 for (auto Pair : SymMap) {
321 StringRef Name = Pair.first.val();331 StringRef Name = Pair.first.val();
322 if (Name.startswith(Prefix))332 if (Name.startswith(Prefix))
323 return Name;333 return Name;
...@@ -327,47 +337,57 @@ StringRef SymbolTable::findByPrefix(StringRef Prefix) {...@@ -327,47 +337,57 @@ StringRef SymbolTable::findByPrefix(StringRef Prefix) {
327337
328StringRef SymbolTable::findMangle(StringRef Name) {338StringRef SymbolTable::findMangle(StringRef Name) {
329 if (Symbol *Sym = find(Name))339 if (Symbol *Sym = find(Name))
330 if (!isa<Undefined>(Sym->body()))340 if (!isa<Undefined>(Sym))
331 return Name;341 return Name;
332 if (Config->Machine != I386)342 if (Config->Machine != I386)
333 return findByPrefix(("?" + Name + "@@Y").str());343 return findByPrefix(("?" + Name + "@@Y").str());
334 if (!Name.startswith("_"))344 if (!Name.startswith("_"))
335 return "";345 return "";
336 // Search for x86 C function.346 // Search for x86 stdcall function.
337 StringRef S = findByPrefix((Name + "@").str());347 StringRef S = findByPrefix((Name + "@").str());
348 if (!S.empty())
349 return S;
350 // Search for x86 fastcall function.
351 S = findByPrefix(("@" + Name.substr(1) + "@").str());
352 if (!S.empty())
353 return S;
354 // Search for x86 vectorcall function.
355 S = findByPrefix((Name.substr(1) + "@@").str());
338 if (!S.empty())356 if (!S.empty())
339 return S;357 return S;
340 // Search for x86 C++ non-member function.358 // Search for x86 C++ non-member function.
341 return findByPrefix(("?" + Name.substr(1) + "@@Y").str());359 return findByPrefix(("?" + Name.substr(1) + "@@Y").str());
342}360}
343361
344void SymbolTable::mangleMaybe(SymbolBody *B) {362void SymbolTable::mangleMaybe(Symbol *B) {
345 auto *U = dyn_cast<Undefined>(B);363 auto *U = dyn_cast<Undefined>(B);
346 if (!U || U->WeakAlias)364 if (!U || U->WeakAlias)
347 return;365 return;
348 StringRef Alias = findMangle(U->getName());366 StringRef Alias = findMangle(U->getName());
349 if (!Alias.empty())367 if (!Alias.empty()) {
368 log(U->getName() + " aliased to " + Alias);
350 U->WeakAlias = addUndefined(Alias);369 U->WeakAlias = addUndefined(Alias);
370 }
351}371}
352372
353SymbolBody *SymbolTable::addUndefined(StringRef Name) {373Symbol *SymbolTable::addUndefined(StringRef Name) {
354 return addUndefined(Name, nullptr, false)->body();374 return addUndefined(Name, nullptr, false);
355}375}
356376
357std::vector<StringRef> SymbolTable::compileBitcodeFiles() {377std::vector<StringRef> SymbolTable::compileBitcodeFiles() {
358 LTO.reset(new BitcodeCompiler);378 LTO.reset(new BitcodeCompiler);
359 for (BitcodeFile *F : BitcodeFiles)379 for (BitcodeFile *F : BitcodeFile::Instances)
360 LTO->add(*F);380 LTO->add(*F);
361 return LTO->compile();381 return LTO->compile();
362}382}
363383
364void SymbolTable::addCombinedLTOObjects() {384void SymbolTable::addCombinedLTOObjects() {
365 if (BitcodeFiles.empty())385 if (BitcodeFile::Instances.empty())
366 return;386 return;
367 for (StringRef Object : compileBitcodeFiles()) {387 for (StringRef Object : compileBitcodeFiles()) {
368 auto *Obj = make<ObjectFile>(MemoryBufferRef(Object, "lto.tmp"));388 auto *Obj = make<ObjFile>(MemoryBufferRef(Object, "lto.tmp"));
369 Obj->parse();389 Obj->parse();
370 ObjectFiles.push_back(Obj);390 ObjFile::Instances.push_back(Obj);
371 }391 }
372}392}
373393
deps/lld/COFF/SymbolTable.h+17-18
...@@ -31,8 +31,7 @@ class DefinedAbsolute;...@@ -31,8 +31,7 @@ class DefinedAbsolute;
31class DefinedRelative;31class DefinedRelative;
32class Lazy;32class Lazy;
33class SectionChunk;33class SectionChunk;
34class SymbolBody;34class Symbol;
35struct Symbol;
3635
37// SymbolTable is a bucket of all known symbols, including defined,36// SymbolTable is a bucket of all known symbols, including defined,
38// undefined, or lazy symbols (the last one is symbols in archive37// undefined, or lazy symbols (the last one is symbols in archive
...@@ -66,7 +65,7 @@ public:...@@ -66,7 +65,7 @@ public:
66 // mangled symbol. This function tries to find a mangled name65 // mangled symbol. This function tries to find a mangled name
67 // for U from the symbol table, and if found, set the symbol as66 // for U from the symbol table, and if found, set the symbol as
68 // a weak alias for U.67 // a weak alias for U.
69 void mangleMaybe(SymbolBody *B);68 void mangleMaybe(Symbol *B);
70 StringRef findMangle(StringRef Name);69 StringRef findMangle(StringRef Name);
7170
72 // Build a set of COFF objects representing the combined contents of71 // Build a set of COFF objects representing the combined contents of
...@@ -75,15 +74,8 @@ public:...@@ -75,15 +74,8 @@ public:
75 void addCombinedLTOObjects();74 void addCombinedLTOObjects();
76 std::vector<StringRef> compileBitcodeFiles();75 std::vector<StringRef> compileBitcodeFiles();
7776
78 // The writer needs to handle DLL import libraries specially in
79 // order to create the import descriptor table.
80 std::vector<ImportFile *> ImportFiles;
81
82 // The writer needs to infer the machine type from the object files.
83 std::vector<ObjectFile *> ObjectFiles;
84
85 // Creates an Undefined symbol for a given name.77 // Creates an Undefined symbol for a given name.
86 SymbolBody *addUndefined(StringRef Name);78 Symbol *addUndefined(StringRef Name);
8779
88 Symbol *addSynthetic(StringRef N, Chunk *C);80 Symbol *addSynthetic(StringRef N, Chunk *C);
89 Symbol *addAbsolute(StringRef N, uint64_t VA);81 Symbol *addAbsolute(StringRef N, uint64_t VA);
...@@ -91,28 +83,35 @@ public:...@@ -91,28 +83,35 @@ public:
91 Symbol *addUndefined(StringRef Name, InputFile *F, bool IsWeakAlias);83 Symbol *addUndefined(StringRef Name, InputFile *F, bool IsWeakAlias);
92 void addLazy(ArchiveFile *F, const Archive::Symbol Sym);84 void addLazy(ArchiveFile *F, const Archive::Symbol Sym);
93 Symbol *addAbsolute(StringRef N, COFFSymbolRef S);85 Symbol *addAbsolute(StringRef N, COFFSymbolRef S);
94 Symbol *addRegular(InputFile *F, StringRef N, bool IsCOMDAT,86 Symbol *addRegular(InputFile *F, StringRef N,
95 const llvm::object::coff_symbol_generic *S = nullptr,87 const llvm::object::coff_symbol_generic *S = nullptr,
96 SectionChunk *C = nullptr);88 SectionChunk *C = nullptr);
89 std::pair<Symbol *, bool>
90 addComdat(InputFile *F, StringRef N,
91 const llvm::object::coff_symbol_generic *S = nullptr);
97 Symbol *addCommon(InputFile *F, StringRef N, uint64_t Size,92 Symbol *addCommon(InputFile *F, StringRef N, uint64_t Size,
98 const llvm::object::coff_symbol_generic *S = nullptr,93 const llvm::object::coff_symbol_generic *S = nullptr,
99 CommonChunk *C = nullptr);94 CommonChunk *C = nullptr);
100 Symbol *addImportData(StringRef N, ImportFile *F);95 DefinedImportData *addImportData(StringRef N, ImportFile *F);
101 Symbol *addImportThunk(StringRef Name, DefinedImportData *S,96 DefinedImportThunk *addImportThunk(StringRef Name, DefinedImportData *S,
102 uint16_t Machine);97 uint16_t Machine);
10398
104 void reportDuplicate(Symbol *Existing, InputFile *NewFile);99 void reportDuplicate(Symbol *Existing, InputFile *NewFile);
105100
106 // A list of chunks which to be added to .rdata.101 // A list of chunks which to be added to .rdata.
107 std::vector<Chunk *> LocalImportChunks;102 std::vector<Chunk *> LocalImportChunks;
108103
104 // Iterates symbols in non-determinstic hash table order.
105 template <typename T> void forEachSymbol(T Callback) {
106 for (auto &Pair : SymMap)
107 Callback(Pair.second);
108 }
109
109private:110private:
110 std::pair<Symbol *, bool> insert(StringRef Name);111 std::pair<Symbol *, bool> insert(StringRef Name);
111 StringRef findByPrefix(StringRef Prefix);112 StringRef findByPrefix(StringRef Prefix);
112113
113 llvm::DenseMap<llvm::CachedHashStringRef, Symbol *> Symtab;114 llvm::DenseMap<llvm::CachedHashStringRef, Symbol *> SymMap;
114
115 std::vector<BitcodeFile *> BitcodeFiles;
116 std::unique_ptr<BitcodeCompiler> LTO;115 std::unique_ptr<BitcodeCompiler> LTO;
117};116};
118117
deps/lld/COFF/Symbols.cpp+20-10
...@@ -8,10 +8,10 @@...@@ -8,10 +8,10 @@
8//===----------------------------------------------------------------------===//8//===----------------------------------------------------------------------===//
99
10#include "Symbols.h"10#include "Symbols.h"
11#include "Error.h"
12#include "InputFiles.h"11#include "InputFiles.h"
13#include "Memory.h"
14#include "Strings.h"12#include "Strings.h"
13#include "lld/Common/ErrorHandler.h"
14#include "lld/Common/Memory.h"
15#include "llvm/ADT/STLExtras.h"15#include "llvm/ADT/STLExtras.h"
16#include "llvm/Support/Debug.h"16#include "llvm/Support/Debug.h"
17#include "llvm/Support/raw_ostream.h"17#include "llvm/Support/raw_ostream.h"
...@@ -20,8 +20,8 @@ using namespace llvm;...@@ -20,8 +20,8 @@ using namespace llvm;
20using namespace llvm::object;20using namespace llvm::object;
2121
22// Returns a symbol name for an error message.22// Returns a symbol name for an error message.
23std::string lld::toString(coff::SymbolBody &B) {23std::string lld::toString(coff::Symbol &B) {
24 if (Optional<std::string> S = coff::demangle(B.getName()))24 if (Optional<std::string> S = coff::demangleMSVC(B.getName()))
25 return ("\"" + *S + "\" (" + B.getName() + ")").str();25 return ("\"" + *S + "\" (" + B.getName() + ")").str();
26 return B.getName();26 return B.getName();
27}27}
...@@ -29,7 +29,7 @@ std::string lld::toString(coff::SymbolBody &B) {...@@ -29,7 +29,7 @@ std::string lld::toString(coff::SymbolBody &B) {
29namespace lld {29namespace lld {
30namespace coff {30namespace coff {
3131
32StringRef SymbolBody::getName() {32StringRef Symbol::getName() {
33 // COFF symbol names are read lazily for a performance reason.33 // COFF symbol names are read lazily for a performance reason.
34 // Non-external symbol names are never used by the linker except for logging34 // Non-external symbol names are never used by the linker except for logging
35 // or debugging. Their internal references are resolved not by name but by35 // or debugging. Their internal references are resolved not by name but by
...@@ -39,12 +39,12 @@ StringRef SymbolBody::getName() {...@@ -39,12 +39,12 @@ StringRef SymbolBody::getName() {
39 // is a waste of time.39 // is a waste of time.
40 if (Name.empty()) {40 if (Name.empty()) {
41 auto *D = cast<DefinedCOFF>(this);41 auto *D = cast<DefinedCOFF>(this);
42 cast<ObjectFile>(D->File)->getCOFFObj()->getSymbolName(D->Sym, Name);42 cast<ObjFile>(D->File)->getCOFFObj()->getSymbolName(D->Sym, Name);
43 }43 }
44 return Name;44 return Name;
45}45}
4646
47InputFile *SymbolBody::getFile() {47InputFile *Symbol::getFile() {
48 if (auto *Sym = dyn_cast<DefinedCOFF>(this))48 if (auto *Sym = dyn_cast<DefinedCOFF>(this))
49 return Sym->File;49 return Sym->File;
50 if (auto *Sym = dyn_cast<Lazy>(this))50 if (auto *Sym = dyn_cast<Lazy>(this))
...@@ -52,9 +52,19 @@ InputFile *SymbolBody::getFile() {...@@ -52,9 +52,19 @@ InputFile *SymbolBody::getFile() {
52 return nullptr;52 return nullptr;
53}53}
5454
55bool Symbol::isLive() const {
56 if (auto *R = dyn_cast<DefinedRegular>(this))
57 return R->getChunk()->isLive();
58 if (auto *Imp = dyn_cast<DefinedImportData>(this))
59 return Imp->File->Live;
60 if (auto *Imp = dyn_cast<DefinedImportThunk>(this))
61 return Imp->WrappedSym->File->Live;
62 // Assume any other kind of symbol is live.
63 return true;
64}
65
55COFFSymbolRef DefinedCOFF::getCOFFSymbol() {66COFFSymbolRef DefinedCOFF::getCOFFSymbol() {
56 size_t SymSize =67 size_t SymSize = cast<ObjFile>(File)->getCOFFObj()->getSymbolTableEntrySize();
57 cast<ObjectFile>(File)->getCOFFObj()->getSymbolTableEntrySize();
58 if (SymSize == sizeof(coff_symbol16))68 if (SymSize == sizeof(coff_symbol16))
59 return COFFSymbolRef(reinterpret_cast<const coff_symbol16 *>(Sym));69 return COFFSymbolRef(reinterpret_cast<const coff_symbol16 *>(Sym));
60 assert(SymSize == sizeof(coff_symbol32));70 assert(SymSize == sizeof(coff_symbol32));
...@@ -81,7 +91,7 @@ DefinedImportThunk::DefinedImportThunk(StringRef Name, DefinedImportData *S,...@@ -81,7 +91,7 @@ DefinedImportThunk::DefinedImportThunk(StringRef Name, DefinedImportData *S,
8191
82Defined *Undefined::getWeakAlias() {92Defined *Undefined::getWeakAlias() {
83 // A weak alias may be a weak alias to another symbol, so check recursively.93 // A weak alias may be a weak alias to another symbol, so check recursively.
84 for (SymbolBody *A = WeakAlias; A; A = cast<Undefined>(A)->WeakAlias)94 for (Symbol *A = WeakAlias; A; A = cast<Undefined>(A)->WeakAlias)
85 if (auto *D = dyn_cast<Defined>(A))95 if (auto *D = dyn_cast<Defined>(A))
86 return D;96 return D;
87 return nullptr;97 return nullptr;
deps/lld/COFF/Symbols.h+67-79
...@@ -12,8 +12,8 @@...@@ -12,8 +12,8 @@
1212
13#include "Chunks.h"13#include "Chunks.h"
14#include "Config.h"14#include "Config.h"
15#include "Memory.h"15#include "lld/Common/LLVM.h"
16#include "lld/Core/LLVM.h"16#include "lld/Common/Memory.h"
17#include "llvm/ADT/ArrayRef.h"17#include "llvm/ADT/ArrayRef.h"
18#include "llvm/Object/Archive.h"18#include "llvm/Object/Archive.h"
19#include "llvm/Object/COFF.h"19#include "llvm/Object/COFF.h"
...@@ -31,12 +31,11 @@ using llvm::object::coff_symbol_generic;...@@ -31,12 +31,11 @@ using llvm::object::coff_symbol_generic;
3131
32class ArchiveFile;32class ArchiveFile;
33class InputFile;33class InputFile;
34class ObjectFile;34class ObjFile;
35struct Symbol;
36class SymbolTable;35class SymbolTable;
3736
38// The base class for real symbol classes.37// The base class for real symbol classes.
39class SymbolBody {38class Symbol {
40public:39public:
41 enum Kind {40 enum Kind {
42 // The order of these is significant. We start with the regular defined41 // The order of these is significant. We start with the regular defined
...@@ -70,16 +69,16 @@ public:...@@ -70,16 +69,16 @@ public:
70 // Returns the file from which this symbol was created.69 // Returns the file from which this symbol was created.
71 InputFile *getFile();70 InputFile *getFile();
7271
73 Symbol *symbol();72 // Indicates that this symbol will be included in the final image. Only valid
74 const Symbol *symbol() const {73 // after calling markLive.
75 return const_cast<SymbolBody *>(this)->symbol();74 bool isLive() const;
76 }
7775
78protected:76protected:
79 friend SymbolTable;77 friend SymbolTable;
80 explicit SymbolBody(Kind K, StringRef N = "")78 explicit Symbol(Kind K, StringRef N = "")
81 : SymbolKind(K), IsExternal(true), IsCOMDAT(false),79 : SymbolKind(K), IsExternal(true), IsCOMDAT(false),
82 WrittenToSymtab(false), Name(N) {}80 WrittenToSymtab(false), PendingArchiveLoad(false), IsGCRoot(false),
81 Name(N) {}
8382
84 const unsigned SymbolKind : 8;83 const unsigned SymbolKind : 8;
85 unsigned IsExternal : 1;84 unsigned IsExternal : 1;
...@@ -92,19 +91,28 @@ public:...@@ -92,19 +91,28 @@ public:
92 // symbols from being written to the symbol table more than once.91 // symbols from being written to the symbol table more than once.
93 unsigned WrittenToSymtab : 1;92 unsigned WrittenToSymtab : 1;
9493
94 // True if this symbol was referenced by a regular (non-bitcode) object.
95 unsigned IsUsedInRegularObj : 1;
96
97 // True if we've seen both a lazy and an undefined symbol with this symbol
98 // name, which means that we have enqueued an archive member load and should
99 // not load any more archive members to resolve the same symbol.
100 unsigned PendingArchiveLoad : 1;
101
102 /// True if we've already added this symbol to the list of GC roots.
103 unsigned IsGCRoot : 1;
104
95protected:105protected:
96 StringRef Name;106 StringRef Name;
97};107};
98108
99// The base class for any defined symbols, including absolute symbols,109// The base class for any defined symbols, including absolute symbols,
100// etc.110// etc.
101class Defined : public SymbolBody {111class Defined : public Symbol {
102public:112public:
103 Defined(Kind K, StringRef N) : SymbolBody(K, N) {}113 Defined(Kind K, StringRef N) : Symbol(K, N) {}
104114
105 static bool classof(const SymbolBody *S) {115 static bool classof(const Symbol *S) { return S->kind() <= LastDefinedKind; }
106 return S->kind() <= LastDefinedKind;
107 }
108116
109 // Returns the RVA (relative virtual address) of this symbol. The117 // Returns the RVA (relative virtual address) of this symbol. The
110 // writer sets and uses RVAs.118 // writer sets and uses RVAs.
...@@ -120,12 +128,13 @@ public:...@@ -120,12 +128,13 @@ public:
120// loaded through that. For bitcode files, Sym is nullptr and the name is stored128// loaded through that. For bitcode files, Sym is nullptr and the name is stored
121// as a StringRef.129// as a StringRef.
122class DefinedCOFF : public Defined {130class DefinedCOFF : public Defined {
123 friend SymbolBody;131 friend Symbol;
132
124public:133public:
125 DefinedCOFF(Kind K, InputFile *F, StringRef N, const coff_symbol_generic *S)134 DefinedCOFF(Kind K, InputFile *F, StringRef N, const coff_symbol_generic *S)
126 : Defined(K, N), File(F), Sym(S) {}135 : Defined(K, N), File(F), Sym(S) {}
127136
128 static bool classof(const SymbolBody *S) {137 static bool classof(const Symbol *S) {
129 return S->kind() <= LastDefinedCOFFKind;138 return S->kind() <= LastDefinedCOFFKind;
130 }139 }
131140
...@@ -151,16 +160,15 @@ public:...@@ -151,16 +160,15 @@ public:
151 this->IsCOMDAT = IsCOMDAT;160 this->IsCOMDAT = IsCOMDAT;
152 }161 }
153162
154 static bool classof(const SymbolBody *S) {163 static bool classof(const Symbol *S) {
155 return S->kind() == DefinedRegularKind;164 return S->kind() == DefinedRegularKind;
156 }165 }
157166
158 uint64_t getRVA() { return (*Data)->getRVA() + Sym->Value; }167 uint64_t getRVA() const { return (*Data)->getRVA() + Sym->Value; }
159 bool isCOMDAT() { return IsCOMDAT; }168 bool isCOMDAT() const { return IsCOMDAT; }
160 SectionChunk *getChunk() { return *Data; }169 SectionChunk *getChunk() const { return *Data; }
161 uint32_t getValue() { return Sym->Value; }170 uint32_t getValue() const { return Sym->Value; }
162171
163private:
164 SectionChunk **Data;172 SectionChunk **Data;
165};173};
166174
...@@ -173,12 +181,12 @@ public:...@@ -173,12 +181,12 @@ public:
173 this->IsExternal = true;181 this->IsExternal = true;
174 }182 }
175183
176 static bool classof(const SymbolBody *S) {184 static bool classof(const Symbol *S) {
177 return S->kind() == DefinedCommonKind;185 return S->kind() == DefinedCommonKind;
178 }186 }
179187
180 uint64_t getRVA() { return Data->getRVA(); }188 uint64_t getRVA() { return Data->getRVA(); }
181 Chunk *getChunk() { return Data; }189 CommonChunk *getChunk() { return Data; }
182190
183private:191private:
184 friend SymbolTable;192 friend SymbolTable;
...@@ -198,7 +206,7 @@ public:...@@ -198,7 +206,7 @@ public:
198 DefinedAbsolute(StringRef N, uint64_t V)206 DefinedAbsolute(StringRef N, uint64_t V)
199 : Defined(DefinedAbsoluteKind, N), VA(V) {}207 : Defined(DefinedAbsoluteKind, N), VA(V) {}
200208
201 static bool classof(const SymbolBody *S) {209 static bool classof(const Symbol *S) {
202 return S->kind() == DefinedAbsoluteKind;210 return S->kind() == DefinedAbsoluteKind;
203 }211 }
204212
...@@ -222,7 +230,7 @@ public:...@@ -222,7 +230,7 @@ public:
222 explicit DefinedSynthetic(StringRef Name, Chunk *C)230 explicit DefinedSynthetic(StringRef Name, Chunk *C)
223 : Defined(DefinedSyntheticKind, Name), C(C) {}231 : Defined(DefinedSyntheticKind, Name), C(C) {}
224232
225 static bool classof(const SymbolBody *S) {233 static bool classof(const Symbol *S) {
226 return S->kind() == DefinedSyntheticKind;234 return S->kind() == DefinedSyntheticKind;
227 }235 }
228236
...@@ -240,12 +248,12 @@ private:...@@ -240,12 +248,12 @@ private:
240// object file from an archive to replace itself with a defined248// object file from an archive to replace itself with a defined
241// symbol. If the resolver finds both Undefined and Lazy for249// symbol. If the resolver finds both Undefined and Lazy for
242// the same name, it will ask the Lazy to load a file.250// the same name, it will ask the Lazy to load a file.
243class Lazy : public SymbolBody {251class Lazy : public Symbol {
244public:252public:
245 Lazy(ArchiveFile *F, const Archive::Symbol S)253 Lazy(ArchiveFile *F, const Archive::Symbol S)
246 : SymbolBody(LazyKind, S.getName()), File(F), Sym(S) {}254 : Symbol(LazyKind, S.getName()), File(F), Sym(S) {}
247255
248 static bool classof(const SymbolBody *S) { return S->kind() == LazyKind; }256 static bool classof(const Symbol *S) { return S->kind() == LazyKind; }
249257
250 ArchiveFile *File;258 ArchiveFile *File;
251259
...@@ -257,19 +265,17 @@ private:...@@ -257,19 +265,17 @@ private:
257};265};
258266
259// Undefined symbols.267// Undefined symbols.
260class Undefined : public SymbolBody {268class Undefined : public Symbol {
261public:269public:
262 explicit Undefined(StringRef N) : SymbolBody(UndefinedKind, N) {}270 explicit Undefined(StringRef N) : Symbol(UndefinedKind, N) {}
263271
264 static bool classof(const SymbolBody *S) {272 static bool classof(const Symbol *S) { return S->kind() == UndefinedKind; }
265 return S->kind() == UndefinedKind;
266 }
267273
268 // An undefined symbol can have a fallback symbol which gives an274 // An undefined symbol can have a fallback symbol which gives an
269 // undefined symbol a second chance if it would remain undefined.275 // undefined symbol a second chance if it would remain undefined.
270 // If it remains undefined, it'll be replaced with whatever the276 // If it remains undefined, it'll be replaced with whatever the
271 // Alias pointer points to.277 // Alias pointer points to.
272 SymbolBody *WeakAlias = nullptr;278 Symbol *WeakAlias = nullptr;
273279
274 // If this symbol is external weak, try to resolve it to a defined280 // If this symbol is external weak, try to resolve it to a defined
275 // symbol by searching the chain of fallback symbols. Returns the symbol if281 // symbol by searching the chain of fallback symbols. Returns the symbol if
...@@ -289,7 +295,7 @@ public:...@@ -289,7 +295,7 @@ public:
289 : Defined(DefinedImportDataKind, N), File(F) {295 : Defined(DefinedImportDataKind, N), File(F) {
290 }296 }
291297
292 static bool classof(const SymbolBody *S) {298 static bool classof(const Symbol *S) {
293 return S->kind() == DefinedImportDataKind;299 return S->kind() == DefinedImportDataKind;
294 }300 }
295301
...@@ -313,7 +319,7 @@ class DefinedImportThunk : public Defined {...@@ -313,7 +319,7 @@ class DefinedImportThunk : public Defined {
313public:319public:
314 DefinedImportThunk(StringRef Name, DefinedImportData *S, uint16_t Machine);320 DefinedImportThunk(StringRef Name, DefinedImportData *S, uint16_t Machine);
315321
316 static bool classof(const SymbolBody *S) {322 static bool classof(const Symbol *S) {
317 return S->kind() == DefinedImportThunkKind;323 return S->kind() == DefinedImportThunkKind;
318 }324 }
319325
...@@ -336,7 +342,7 @@ public:...@@ -336,7 +342,7 @@ public:
336 DefinedLocalImport(StringRef N, Defined *S)342 DefinedLocalImport(StringRef N, Defined *S)
337 : Defined(DefinedLocalImportKind, N), Data(make<LocalImportChunk>(S)) {}343 : Defined(DefinedLocalImportKind, N), Data(make<LocalImportChunk>(S)) {}
338344
339 static bool classof(const SymbolBody *S) {345 static bool classof(const Symbol *S) {
340 return S->kind() == DefinedLocalImportKind;346 return S->kind() == DefinedLocalImportKind;
341 }347 }
342348
...@@ -393,51 +399,33 @@ inline Chunk *Defined::getChunk() {...@@ -393,51 +399,33 @@ inline Chunk *Defined::getChunk() {
393 llvm_unreachable("unknown symbol kind");399 llvm_unreachable("unknown symbol kind");
394}400}
395401
396// A real symbol object, SymbolBody, is usually stored within a Symbol. There's402// A buffer class that is large enough to hold any Symbol-derived
397// always one Symbol for each symbol name. The resolver updates the SymbolBody403// object. We allocate memory using this class and instantiate a symbol
398// stored in the Body field of this object as it resolves symbols. Symbol also404// using the placement new.
399// holds computed properties of symbol names.405union SymbolUnion {
400struct Symbol {406 alignas(DefinedRegular) char A[sizeof(DefinedRegular)];
401 // True if this symbol was referenced by a regular (non-bitcode) object.407 alignas(DefinedCommon) char B[sizeof(DefinedCommon)];
402 unsigned IsUsedInRegularObj : 1;408 alignas(DefinedAbsolute) char C[sizeof(DefinedAbsolute)];
403409 alignas(DefinedSynthetic) char D[sizeof(DefinedSynthetic)];
404 // True if we've seen both a lazy and an undefined symbol with this symbol410 alignas(Lazy) char E[sizeof(Lazy)];
405 // name, which means that we have enqueued an archive member load and should411 alignas(Undefined) char F[sizeof(Undefined)];
406 // not load any more archive members to resolve the same symbol.412 alignas(DefinedImportData) char G[sizeof(DefinedImportData)];
407 unsigned PendingArchiveLoad : 1;413 alignas(DefinedImportThunk) char H[sizeof(DefinedImportThunk)];
408414 alignas(DefinedLocalImport) char I[sizeof(DefinedLocalImport)];
409 // This field is used to store the Symbol's SymbolBody. This instantiation of
410 // AlignedCharArrayUnion gives us a struct with a char array field that is
411 // large and aligned enough to store any derived class of SymbolBody.
412 llvm::AlignedCharArrayUnion<
413 DefinedRegular, DefinedCommon, DefinedAbsolute, DefinedSynthetic, Lazy,
414 Undefined, DefinedImportData, DefinedImportThunk, DefinedLocalImport>
415 Body;
416
417 SymbolBody *body() {
418 return reinterpret_cast<SymbolBody *>(Body.buffer);
419 }
420 const SymbolBody *body() const { return const_cast<Symbol *>(this)->body(); }
421};415};
422416
423template <typename T, typename... ArgT>417template <typename T, typename... ArgT>
424void replaceBody(Symbol *S, ArgT &&... Arg) {418void replaceSymbol(Symbol *S, ArgT &&... Arg) {
425 static_assert(sizeof(T) <= sizeof(S->Body), "Body too small");419 static_assert(sizeof(T) <= sizeof(SymbolUnion), "Symbol too small");
426 static_assert(alignof(T) <= alignof(decltype(S->Body)),420 static_assert(alignof(T) <= alignof(SymbolUnion),
427 "Body not aligned enough");421 "SymbolUnion not aligned enough");
428 assert(static_cast<SymbolBody *>(static_cast<T *>(nullptr)) == nullptr &&422 assert(static_cast<Symbol *>(static_cast<T *>(nullptr)) == nullptr &&
429 "Not a SymbolBody");423 "Not a Symbol");
430 new (S->Body.buffer) T(std::forward<ArgT>(Arg)...);424 new (S) T(std::forward<ArgT>(Arg)...);
431}
432
433inline Symbol *SymbolBody::symbol() {
434 assert(isExternal());
435 return reinterpret_cast<Symbol *>(reinterpret_cast<char *>(this) -
436 offsetof(Symbol, Body));
437}425}
438} // namespace coff426} // namespace coff
439427
440std::string toString(coff::SymbolBody &B);428std::string toString(coff::Symbol &B);
441} // namespace lld429} // namespace lld
442430
443#endif431#endif
deps/lld/COFF/Writer.cpp+201-130
...@@ -10,22 +10,22 @@...@@ -10,22 +10,22 @@
10#include "Writer.h"10#include "Writer.h"
11#include "Config.h"11#include "Config.h"
12#include "DLL.h"12#include "DLL.h"
13#include "Error.h"
14#include "InputFiles.h"13#include "InputFiles.h"
15#include "MapFile.h"14#include "MapFile.h"
16#include "Memory.h"
17#include "PDB.h"15#include "PDB.h"
18#include "SymbolTable.h"16#include "SymbolTable.h"
19#include "Symbols.h"17#include "Symbols.h"
18#include "lld/Common/ErrorHandler.h"
19#include "lld/Common/Memory.h"
20#include "llvm/ADT/DenseMap.h"20#include "llvm/ADT/DenseMap.h"
21#include "llvm/ADT/STLExtras.h"21#include "llvm/ADT/STLExtras.h"
22#include "llvm/ADT/StringSwitch.h"22#include "llvm/ADT/StringSwitch.h"
23#include "llvm/Support/BinaryStreamReader.h"
23#include "llvm/Support/Debug.h"24#include "llvm/Support/Debug.h"
24#include "llvm/Support/Endian.h"25#include "llvm/Support/Endian.h"
25#include "llvm/Support/FileOutputBuffer.h"26#include "llvm/Support/FileOutputBuffer.h"
26#include "llvm/Support/Parallel.h"27#include "llvm/Support/Parallel.h"
27#include "llvm/Support/RandomNumberGenerator.h"28#include "llvm/Support/RandomNumberGenerator.h"
28#include "llvm/Support/raw_ostream.h"
29#include <algorithm>29#include <algorithm>
30#include <cstdio>30#include <cstdio>
31#include <map>31#include <map>
...@@ -65,8 +65,9 @@ public:...@@ -65,8 +65,9 @@ public:
65 D->Type = COFF::IMAGE_DEBUG_TYPE_CODEVIEW;65 D->Type = COFF::IMAGE_DEBUG_TYPE_CODEVIEW;
66 D->SizeOfData = Record->getSize();66 D->SizeOfData = Record->getSize();
67 D->AddressOfRawData = Record->getRVA();67 D->AddressOfRawData = Record->getRVA();
68 // TODO(compnerd) get the file offset68 OutputSection *OS = Record->getOutputSection();
69 D->PointerToRawData = 0;69 uint64_t Offs = OS->getFileOff() + (Record->getRVA() - OS->getRVA());
70 D->PointerToRawData = Offs;
7071
71 ++D;72 ++D;
72 }73 }
...@@ -77,32 +78,37 @@ private:...@@ -77,32 +78,37 @@ private:
77};78};
7879
79class CVDebugRecordChunk : public Chunk {80class CVDebugRecordChunk : public Chunk {
81public:
82 CVDebugRecordChunk() {
83 PDBAbsPath = Config->PDBPath;
84 if (!PDBAbsPath.empty())
85 llvm::sys::fs::make_absolute(PDBAbsPath);
86 }
87
80 size_t getSize() const override {88 size_t getSize() const override {
81 return sizeof(codeview::DebugInfo) + Config->PDBPath.size() + 1;89 return sizeof(codeview::DebugInfo) + PDBAbsPath.size() + 1;
82 }90 }
8391
84 void writeTo(uint8_t *B) const override {92 void writeTo(uint8_t *B) const override {
85 // Save off the DebugInfo entry to backfill the file signature (build id)93 // Save off the DebugInfo entry to backfill the file signature (build id)
86 // in Writer::writeBuildId94 // in Writer::writeBuildId
87 DI = reinterpret_cast<codeview::DebugInfo *>(B + OutputSectionOff);95 BuildId = reinterpret_cast<codeview::DebugInfo *>(B + OutputSectionOff);
88
89 DI->Signature.CVSignature = OMF::Signature::PDB70;
9096
91 // variable sized field (PDB Path)97 // variable sized field (PDB Path)
92 auto *P = reinterpret_cast<char *>(B + OutputSectionOff + sizeof(*DI));98 char *P = reinterpret_cast<char *>(B + OutputSectionOff + sizeof(*BuildId));
93 if (!Config->PDBPath.empty())99 if (!PDBAbsPath.empty())
94 memcpy(P, Config->PDBPath.data(), Config->PDBPath.size());100 memcpy(P, PDBAbsPath.data(), PDBAbsPath.size());
95 P[Config->PDBPath.size()] = '\0';101 P[PDBAbsPath.size()] = '\0';
96 }102 }
97103
98public:104 SmallString<128> PDBAbsPath;
99 mutable codeview::DebugInfo *DI = nullptr;105 mutable codeview::DebugInfo *BuildId = nullptr;
100};106};
101107
102// The writer writes a SymbolTable result to a file.108// The writer writes a SymbolTable result to a file.
103class Writer {109class Writer {
104public:110public:
105 Writer(SymbolTable *T) : Symtab(T) {}111 Writer() : Buffer(errorHandler().OutputBuffer) {}
106 void run();112 void run();
107113
108private:114private:
...@@ -115,11 +121,11 @@ private:...@@ -115,11 +121,11 @@ private:
115 void createSymbolAndStringTable();121 void createSymbolAndStringTable();
116 void openFile(StringRef OutputPath);122 void openFile(StringRef OutputPath);
117 template <typename PEHeaderTy> void writeHeader();123 template <typename PEHeaderTy> void writeHeader();
118 void fixSafeSEHSymbols();124 void createSEHTable(OutputSection *RData);
119 void setSectionPermissions();125 void setSectionPermissions();
120 void writeSections();126 void writeSections();
121 void sortExceptionTable();
122 void writeBuildId();127 void writeBuildId();
128 void sortExceptionTable();
123129
124 llvm::Optional<coff_symbol16> createSymbol(Defined *D);130 llvm::Optional<coff_symbol16> createSymbol(Defined *D);
125 size_t addEntryToStringTable(StringRef Str);131 size_t addEntryToStringTable(StringRef Str);
...@@ -132,8 +138,7 @@ private:...@@ -132,8 +138,7 @@ private:
132 uint32_t getSizeOfInitializedData();138 uint32_t getSizeOfInitializedData();
133 std::map<StringRef, std::vector<DefinedImportData *>> binImports();139 std::map<StringRef, std::vector<DefinedImportData *>> binImports();
134140
135 SymbolTable *Symtab;141 std::unique_ptr<FileOutputBuffer> &Buffer;
136 std::unique_ptr<FileOutputBuffer> Buffer;
137 std::vector<OutputSection *> OutputSections;142 std::vector<OutputSection *> OutputSections;
138 std::vector<char> Strtab;143 std::vector<char> Strtab;
139 std::vector<llvm::object::coff_symbol16> OutputSymtab;144 std::vector<llvm::object::coff_symbol16> OutputSymtab;
...@@ -145,6 +150,7 @@ private:...@@ -145,6 +150,7 @@ private:
145 Chunk *DebugDirectory = nullptr;150 Chunk *DebugDirectory = nullptr;
146 std::vector<Chunk *> DebugRecords;151 std::vector<Chunk *> DebugRecords;
147 CVDebugRecordChunk *BuildId = nullptr;152 CVDebugRecordChunk *BuildId = nullptr;
153 Optional<codeview::DebugInfo> PreviousBuildId;
148 ArrayRef<uint8_t> SectionTable;154 ArrayRef<uint8_t> SectionTable;
149155
150 uint64_t FileSize;156 uint64_t FileSize;
...@@ -157,7 +163,7 @@ private:...@@ -157,7 +163,7 @@ private:
157namespace lld {163namespace lld {
158namespace coff {164namespace coff {
159165
160void writeResult(SymbolTable *T) { Writer(T).run(); }166void writeResult() { Writer().run(); }
161167
162void OutputSection::setRVA(uint64_t RVA) {168void OutputSection::setRVA(uint64_t RVA) {
163 Header.VirtualAddress = RVA;169 Header.VirtualAddress = RVA;
...@@ -178,10 +184,12 @@ void OutputSection::addChunk(Chunk *C) {...@@ -178,10 +184,12 @@ void OutputSection::addChunk(Chunk *C) {
178 Chunks.push_back(C);184 Chunks.push_back(C);
179 C->setOutputSection(this);185 C->setOutputSection(this);
180 uint64_t Off = Header.VirtualSize;186 uint64_t Off = Header.VirtualSize;
181 Off = alignTo(Off, C->getAlign());187 Off = alignTo(Off, C->Alignment);
182 C->setRVA(Off);188 C->setRVA(Off);
183 C->OutputSectionOff = Off;189 C->OutputSectionOff = Off;
184 Off += C->getSize();190 Off += C->getSize();
191 if (Off > UINT32_MAX)
192 error("section larger than 4 GiB: " + Name);
185 Header.VirtualSize = Off;193 Header.VirtualSize = Off;
186 if (C->hasData())194 if (C->hasData())
187 Header.SizeOfRawData = alignTo(Off, SectorSize);195 Header.SizeOfRawData = alignTo(Off, SectorSize);
...@@ -203,7 +211,8 @@ void OutputSection::writeHeaderTo(uint8_t *Buf) {...@@ -203,7 +211,8 @@ void OutputSection::writeHeaderTo(uint8_t *Buf) {
203 // If name is too long, write offset into the string table as a name.211 // If name is too long, write offset into the string table as a name.
204 sprintf(Hdr->Name, "/%d", StringTableOff);212 sprintf(Hdr->Name, "/%d", StringTableOff);
205 } else {213 } else {
206 assert(!Config->Debug || Name.size() <= COFF::NameSize);214 assert(!Config->Debug || Name.size() <= COFF::NameSize ||
215 (Hdr->Characteristics & IMAGE_SCN_MEM_DISCARDABLE) == 0);
207 strncpy(Hdr->Name, Name.data(),216 strncpy(Hdr->Name, Name.data(),
208 std::min(Name.size(), (size_t)COFF::NameSize));217 std::min(Name.size(), (size_t)COFF::NameSize));
209 }218 }
...@@ -212,6 +221,67 @@ void OutputSection::writeHeaderTo(uint8_t *Buf) {...@@ -212,6 +221,67 @@ void OutputSection::writeHeaderTo(uint8_t *Buf) {
212} // namespace coff221} // namespace coff
213} // namespace lld222} // namespace lld
214223
224// PDBs are matched against executables using a build id which consists of three
225// components:
226// 1. A 16-bit GUID
227// 2. An age
228// 3. A time stamp.
229//
230// Debuggers and symbol servers match executables against debug info by checking
231// each of these components of the EXE/DLL against the corresponding value in
232// the PDB and failing a match if any of the components differ. In the case of
233// symbol servers, symbols are cached in a folder that is a function of the
234// GUID. As a result, in order to avoid symbol cache pollution where every
235// incremental build copies a new PDB to the symbol cache, we must try to re-use
236// the existing GUID if one exists, but bump the age. This way the match will
237// fail, so the symbol cache knows to use the new PDB, but the GUID matches, so
238// it overwrites the existing item in the symbol cache rather than making a new
239// one.
240static Optional<codeview::DebugInfo> loadExistingBuildId(StringRef Path) {
241 // We don't need to incrementally update a previous build id if we're not
242 // writing codeview debug info.
243 if (!Config->Debug)
244 return None;
245
246 auto ExpectedBinary = llvm::object::createBinary(Path);
247 if (!ExpectedBinary) {
248 consumeError(ExpectedBinary.takeError());
249 return None;
250 }
251
252 auto Binary = std::move(*ExpectedBinary);
253 if (!Binary.getBinary()->isCOFF())
254 return None;
255
256 std::error_code EC;
257 COFFObjectFile File(Binary.getBinary()->getMemoryBufferRef(), EC);
258 if (EC)
259 return None;
260
261 // If the machine of the binary we're outputting doesn't match the machine
262 // of the existing binary, don't try to re-use the build id.
263 if (File.is64() != Config->is64() || File.getMachine() != Config->Machine)
264 return None;
265
266 for (const auto &DebugDir : File.debug_directories()) {
267 if (DebugDir.Type != IMAGE_DEBUG_TYPE_CODEVIEW)
268 continue;
269
270 const codeview::DebugInfo *ExistingDI = nullptr;
271 StringRef PDBFileName;
272 if (auto EC = File.getDebugPDBInfo(ExistingDI, PDBFileName)) {
273 (void)EC;
274 return None;
275 }
276 // We only support writing PDBs in v70 format. So if this is not a build
277 // id that we recognize / support, ignore it.
278 if (ExistingDI->Signature.CVSignature != OMF::Signature::PDB70)
279 return None;
280 return *ExistingDI;
281 }
282 return None;
283}
284
215// The main function of the writer.285// The main function of the writer.
216void Writer::run() {286void Writer::run() {
217 createSections();287 createSections();
...@@ -224,32 +294,39 @@ void Writer::run() {...@@ -224,32 +294,39 @@ void Writer::run() {
224 removeEmptySections();294 removeEmptySections();
225 setSectionPermissions();295 setSectionPermissions();
226 createSymbolAndStringTable();296 createSymbolAndStringTable();
297
298 // We must do this before opening the output file, as it depends on being able
299 // to read the contents of the existing output file.
300 PreviousBuildId = loadExistingBuildId(Config->OutputFile);
227 openFile(Config->OutputFile);301 openFile(Config->OutputFile);
228 if (Config->is64()) {302 if (Config->is64()) {
229 writeHeader<pe32plus_header>();303 writeHeader<pe32plus_header>();
230 } else {304 } else {
231 writeHeader<pe32_header>();305 writeHeader<pe32_header>();
232 }306 }
233 fixSafeSEHSymbols();
234 writeSections();307 writeSections();
235 sortExceptionTable();308 sortExceptionTable();
236 writeBuildId();309 writeBuildId();
237310
238 if (!Config->PDBPath.empty() && Config->Debug) {311 if (!Config->PDBPath.empty() && Config->Debug) {
239 const llvm::codeview::DebugInfo *DI = nullptr;312
240 if (Config->DebugTypes & static_cast<unsigned>(coff::DebugType::CV))313 assert(BuildId);
241 DI = BuildId->DI;314 createPDB(Symtab, OutputSections, SectionTable, *BuildId->BuildId);
242 createPDB(Symtab, SectionTable, DI);
243 }315 }
244316
245 writeMapFile(OutputSections);317 writeMapFile(OutputSections);
246318
247 if (auto EC = Buffer->commit())319 if (auto E = Buffer->commit())
248 fatal(EC, "failed to write the output file");320 fatal("failed to write the output file: " + toString(std::move(E)));
249}321}
250322
251static StringRef getOutputSection(StringRef Name) {323static StringRef getOutputSection(StringRef Name) {
252 StringRef S = Name.split('$').first;324 StringRef S = Name.split('$').first;
325
326 // Treat a later period as a separator for MinGW, for sections like
327 // ".ctors.01234".
328 S = S.substr(0, S.find('.', 1));
329
253 auto It = Config->Merge.find(S);330 auto It = Config->Merge.find(S);
254 if (It == Config->Merge.end())331 if (It == Config->Merge.end())
255 return S;332 return S;
...@@ -303,41 +380,20 @@ void Writer::createMiscChunks() {...@@ -303,41 +380,20 @@ void Writer::createMiscChunks() {
303 if (Config->Debug) {380 if (Config->Debug) {
304 DebugDirectory = make<DebugDirectoryChunk>(DebugRecords);381 DebugDirectory = make<DebugDirectoryChunk>(DebugRecords);
305382
306 // TODO(compnerd) create a coffgrp entry if DebugType::CV is not enabled383 // Make a CVDebugRecordChunk even when /DEBUG:CV is not specified. We
307 if (Config->DebugTypes & static_cast<unsigned>(coff::DebugType::CV)) {384 // output a PDB no matter what, and this chunk provides the only means of
308 auto *Chunk = make<CVDebugRecordChunk>();385 // allowing a debugger to match a PDB and an executable. So we need it even
309386 // if we're ultimately not going to write CodeView data to the PDB.
310 BuildId = Chunk;387 auto *CVChunk = make<CVDebugRecordChunk>();
311 DebugRecords.push_back(Chunk);388 BuildId = CVChunk;
312 }389 DebugRecords.push_back(CVChunk);
313390
314 RData->addChunk(DebugDirectory);391 RData->addChunk(DebugDirectory);
315 for (Chunk *C : DebugRecords)392 for (Chunk *C : DebugRecords)
316 RData->addChunk(C);393 RData->addChunk(C);
317 }394 }
318395
319 // Create SEH table. x86-only.396 createSEHTable(RData);
320 if (Config->Machine != I386)
321 return;
322
323 std::set<Defined *> Handlers;
324
325 for (lld::coff::ObjectFile *File : Symtab->ObjectFiles) {
326 if (!File->SEHCompat)
327 return;
328 for (SymbolBody *B : File->SEHandlers) {
329 // Make sure the handler is still live. Assume all handlers are regular
330 // symbols.
331 auto *D = dyn_cast<DefinedRegular>(B);
332 if (D && D->getChunk()->isLive())
333 Handlers.insert(D);
334 }
335 }
336
337 if (!Handlers.empty()) {
338 SEHTable = make<SEHTableChunk>(Handlers);
339 RData->addChunk(SEHTable);
340 }
341}397}
342398
343// Create .idata section for the DLL-imported symbol table.399// Create .idata section for the DLL-imported symbol table.
...@@ -345,13 +401,13 @@ void Writer::createMiscChunks() {...@@ -345,13 +401,13 @@ void Writer::createMiscChunks() {
345// IdataContents class abstracted away the details for us,401// IdataContents class abstracted away the details for us,
346// so we just let it create chunks and add them to the section.402// so we just let it create chunks and add them to the section.
347void Writer::createImportTables() {403void Writer::createImportTables() {
348 if (Symtab->ImportFiles.empty())404 if (ImportFile::Instances.empty())
349 return;405 return;
350406
351 // Initialize DLLOrder so that import entries are ordered in407 // Initialize DLLOrder so that import entries are ordered in
352 // the same order as in the command line. (That affects DLL408 // the same order as in the command line. (That affects DLL
353 // initialization order, and this ordering is MSVC-compatible.)409 // initialization order, and this ordering is MSVC-compatible.)
354 for (ImportFile *File : Symtab->ImportFiles) {410 for (ImportFile *File : ImportFile::Instances) {
355 if (!File->Live)411 if (!File->Live)
356 continue;412 continue;
357413
...@@ -361,7 +417,7 @@ void Writer::createImportTables() {...@@ -361,7 +417,7 @@ void Writer::createImportTables() {
361 }417 }
362418
363 OutputSection *Text = createSection(".text");419 OutputSection *Text = createSection(".text");
364 for (ImportFile *File : Symtab->ImportFiles) {420 for (ImportFile *File : ImportFile::Instances) {
365 if (!File->Live)421 if (!File->Live)
366 continue;422 continue;
367423
...@@ -432,19 +488,12 @@ Optional<coff_symbol16> Writer::createSymbol(Defined *Def) {...@@ -432,19 +488,12 @@ Optional<coff_symbol16> Writer::createSymbol(Defined *Def) {
432 if (isa<DefinedSynthetic>(Def))488 if (isa<DefinedSynthetic>(Def))
433 return None;489 return None;
434490
435 if (auto *D = dyn_cast<DefinedRegular>(Def)) {491 // Don't write dead symbols or symbols in codeview sections to the symbol
436 // Don't write dead symbols or symbols in codeview sections to the symbol492 // table.
437 // table.493 if (!Def->isLive())
438 if (!D->getChunk()->isLive() || D->getChunk()->isCodeView())494 return None;
439 return None;495 if (auto *D = dyn_cast<DefinedRegular>(Def))
440 }496 if (D->getChunk()->isCodeView())
441
442 if (auto *Sym = dyn_cast<DefinedImportData>(Def))
443 if (!Sym->File->Live)
444 return None;
445
446 if (auto *Sym = dyn_cast<DefinedImportThunk>(Def))
447 if (!Sym->WrappedSym->File->Live)
448 return None;497 return None;
449498
450 coff_symbol16 Sym;499 coff_symbol16 Sym;
...@@ -468,7 +517,7 @@ Optional<coff_symbol16> Writer::createSymbol(Defined *Def) {...@@ -468,7 +517,7 @@ Optional<coff_symbol16> Writer::createSymbol(Defined *Def) {
468 Sym.NumberOfAuxSymbols = 0;517 Sym.NumberOfAuxSymbols = 0;
469518
470 switch (Def->kind()) {519 switch (Def->kind()) {
471 case SymbolBody::DefinedAbsoluteKind:520 case Symbol::DefinedAbsoluteKind:
472 Sym.Value = Def->getRVA();521 Sym.Value = Def->getRVA();
473 Sym.SectionNumber = IMAGE_SYM_ABSOLUTE;522 Sym.SectionNumber = IMAGE_SYM_ABSOLUTE;
474 break;523 break;
...@@ -489,40 +538,46 @@ Optional<coff_symbol16> Writer::createSymbol(Defined *Def) {...@@ -489,40 +538,46 @@ Optional<coff_symbol16> Writer::createSymbol(Defined *Def) {
489}538}
490539
491void Writer::createSymbolAndStringTable() {540void Writer::createSymbolAndStringTable() {
492 if (!Config->Debug || !Config->WriteSymtab)
493 return;
494
495 // Name field in the section table is 8 byte long. Longer names need541 // Name field in the section table is 8 byte long. Longer names need
496 // to be written to the string table. First, construct string table.542 // to be written to the string table. First, construct string table.
497 for (OutputSection *Sec : OutputSections) {543 for (OutputSection *Sec : OutputSections) {
498 StringRef Name = Sec->getName();544 StringRef Name = Sec->getName();
499 if (Name.size() <= COFF::NameSize)545 if (Name.size() <= COFF::NameSize)
500 continue;546 continue;
547 // If a section isn't discardable (i.e. will be mapped at runtime),
548 // prefer a truncated section name over a long section name in
549 // the string table that is unavailable at runtime. This is different from
550 // what link.exe does, but finding ".eh_fram" instead of "/4" is useful
551 // to libunwind.
552 if ((Sec->getPermissions() & IMAGE_SCN_MEM_DISCARDABLE) == 0)
553 continue;
501 Sec->setStringTableOff(addEntryToStringTable(Name));554 Sec->setStringTableOff(addEntryToStringTable(Name));
502 }555 }
503556
504 for (lld::coff::ObjectFile *File : Symtab->ObjectFiles) {557 if (Config->DebugDwarf) {
505 for (SymbolBody *B : File->getSymbols()) {558 for (ObjFile *File : ObjFile::Instances) {
506 auto *D = dyn_cast<Defined>(B);559 for (Symbol *B : File->getSymbols()) {
507 if (!D || D->WrittenToSymtab)560 auto *D = dyn_cast_or_null<Defined>(B);
508 continue;561 if (!D || D->WrittenToSymtab)
509 D->WrittenToSymtab = true;562 continue;
563 D->WrittenToSymtab = true;
510564
511 if (Optional<coff_symbol16> Sym = createSymbol(D))565 if (Optional<coff_symbol16> Sym = createSymbol(D))
512 OutputSymtab.push_back(*Sym);566 OutputSymtab.push_back(*Sym);
567 }
513 }568 }
514 }569 }
515570
571 if (OutputSymtab.empty() && Strtab.empty())
572 return;
573
516 OutputSection *LastSection = OutputSections.back();574 OutputSection *LastSection = OutputSections.back();
517 // We position the symbol table to be adjacent to the end of the last section.575 // We position the symbol table to be adjacent to the end of the last section.
518 uint64_t FileOff = LastSection->getFileOff() +576 uint64_t FileOff = LastSection->getFileOff() +
519 alignTo(LastSection->getRawSize(), SectorSize);577 alignTo(LastSection->getRawSize(), SectorSize);
520 if (!OutputSymtab.empty()) {578 PointerToSymbolTable = FileOff;
521 PointerToSymbolTable = FileOff;579 FileOff += OutputSymtab.size() * sizeof(coff_symbol16);
522 FileOff += OutputSymtab.size() * sizeof(coff_symbol16);580 FileOff += 4 + Strtab.size();
523 }
524 if (!Strtab.empty())
525 FileOff += Strtab.size() + 4;
526 FileSize = alignTo(FileOff, SectorSize);581 FileSize = alignTo(FileOff, SectorSize);
527}582}
528583
...@@ -551,7 +606,7 @@ void Writer::assignAddresses() {...@@ -551,7 +606,7 @@ void Writer::assignAddresses() {
551 RVA += alignTo(Sec->getVirtualSize(), PageSize);606 RVA += alignTo(Sec->getVirtualSize(), PageSize);
552 FileSize += alignTo(Sec->getRawSize(), SectorSize);607 FileSize += alignTo(Sec->getRawSize(), SectorSize);
553 }608 }
554 SizeOfImage = SizeOfHeaders + alignTo(RVA - 0x1000, PageSize);609 SizeOfImage = alignTo(RVA, PageSize);
555}610}
556611
557template <typename PEHeaderTy> void Writer::writeHeader() {612template <typename PEHeaderTy> void Writer::writeHeader() {
...@@ -621,23 +676,21 @@ template <typename PEHeaderTy> void Writer::writeHeader() {...@@ -621,23 +676,21 @@ template <typename PEHeaderTy> void Writer::writeHeader() {
621 PE->SizeOfStackCommit = Config->StackCommit;676 PE->SizeOfStackCommit = Config->StackCommit;
622 PE->SizeOfHeapReserve = Config->HeapReserve;677 PE->SizeOfHeapReserve = Config->HeapReserve;
623 PE->SizeOfHeapCommit = Config->HeapCommit;678 PE->SizeOfHeapCommit = Config->HeapCommit;
624
625 // Import Descriptor Tables and Import Address Tables are merged
626 // in our output. That's not compatible with the Binding feature
627 // that is sort of prelinking. Setting this flag to make it clear
628 // that our outputs are not for the Binding.
629 PE->DLLCharacteristics = IMAGE_DLL_CHARACTERISTICS_NO_BIND;
630
631 if (Config->AppContainer)679 if (Config->AppContainer)
632 PE->DLLCharacteristics |= IMAGE_DLL_CHARACTERISTICS_APPCONTAINER;680 PE->DLLCharacteristics |= IMAGE_DLL_CHARACTERISTICS_APPCONTAINER;
633 if (Config->DynamicBase)681 if (Config->DynamicBase)
634 PE->DLLCharacteristics |= IMAGE_DLL_CHARACTERISTICS_DYNAMIC_BASE;682 PE->DLLCharacteristics |= IMAGE_DLL_CHARACTERISTICS_DYNAMIC_BASE;
635 if (Config->HighEntropyVA)683 if (Config->HighEntropyVA)
636 PE->DLLCharacteristics |= IMAGE_DLL_CHARACTERISTICS_HIGH_ENTROPY_VA;684 PE->DLLCharacteristics |= IMAGE_DLL_CHARACTERISTICS_HIGH_ENTROPY_VA;
685 if (!Config->AllowBind)
686 PE->DLLCharacteristics |= IMAGE_DLL_CHARACTERISTICS_NO_BIND;
637 if (Config->NxCompat)687 if (Config->NxCompat)
638 PE->DLLCharacteristics |= IMAGE_DLL_CHARACTERISTICS_NX_COMPAT;688 PE->DLLCharacteristics |= IMAGE_DLL_CHARACTERISTICS_NX_COMPAT;
639 if (!Config->AllowIsolation)689 if (!Config->AllowIsolation)
640 PE->DLLCharacteristics |= IMAGE_DLL_CHARACTERISTICS_NO_ISOLATION;690 PE->DLLCharacteristics |= IMAGE_DLL_CHARACTERISTICS_NO_ISOLATION;
691 if (Config->Machine == I386 && !SEHTable &&
692 !Symtab->findUnderscore("_load_config_used"))
693 PE->DLLCharacteristics |= IMAGE_DLL_CHARACTERISTICS_NO_SEH;
641 if (Config->TerminalServerAware)694 if (Config->TerminalServerAware)
642 PE->DLLCharacteristics |= IMAGE_DLL_CHARACTERISTICS_TERMINAL_SERVER_AWARE;695 PE->DLLCharacteristics |= IMAGE_DLL_CHARACTERISTICS_TERMINAL_SERVER_AWARE;
643 PE->NumberOfRvaAndSize = NumberfOfDataDirectory;696 PE->NumberOfRvaAndSize = NumberfOfDataDirectory;
...@@ -673,7 +726,7 @@ template <typename PEHeaderTy> void Writer::writeHeader() {...@@ -673,7 +726,7 @@ template <typename PEHeaderTy> void Writer::writeHeader() {
673 Dir[BASE_RELOCATION_TABLE].Size = Sec->getVirtualSize();726 Dir[BASE_RELOCATION_TABLE].Size = Sec->getVirtualSize();
674 }727 }
675 if (Symbol *Sym = Symtab->findUnderscore("_tls_used")) {728 if (Symbol *Sym = Symtab->findUnderscore("_tls_used")) {
676 if (Defined *B = dyn_cast<Defined>(Sym->body())) {729 if (Defined *B = dyn_cast<Defined>(Sym)) {
677 Dir[TLS_TABLE].RelativeVirtualAddress = B->getRVA();730 Dir[TLS_TABLE].RelativeVirtualAddress = B->getRVA();
678 Dir[TLS_TABLE].Size = Config->is64()731 Dir[TLS_TABLE].Size = Config->is64()
679 ? sizeof(object::coff_tls_directory64)732 ? sizeof(object::coff_tls_directory64)
...@@ -685,7 +738,7 @@ template <typename PEHeaderTy> void Writer::writeHeader() {...@@ -685,7 +738,7 @@ template <typename PEHeaderTy> void Writer::writeHeader() {
685 Dir[DEBUG_DIRECTORY].Size = DebugDirectory->getSize();738 Dir[DEBUG_DIRECTORY].Size = DebugDirectory->getSize();
686 }739 }
687 if (Symbol *Sym = Symtab->findUnderscore("_load_config_used")) {740 if (Symbol *Sym = Symtab->findUnderscore("_load_config_used")) {
688 if (auto *B = dyn_cast<DefinedRegular>(Sym->body())) {741 if (auto *B = dyn_cast<DefinedRegular>(Sym)) {
689 SectionChunk *SC = B->getChunk();742 SectionChunk *SC = B->getChunk();
690 assert(B->getRVA() >= SC->getRVA());743 assert(B->getRVA() >= SC->getRVA());
691 uint64_t OffsetInChunk = B->getRVA() - SC->getRVA();744 uint64_t OffsetInChunk = B->getRVA() - SC->getRVA();
...@@ -715,7 +768,7 @@ template <typename PEHeaderTy> void Writer::writeHeader() {...@@ -715,7 +768,7 @@ template <typename PEHeaderTy> void Writer::writeHeader() {
715 SectionTable = ArrayRef<uint8_t>(768 SectionTable = ArrayRef<uint8_t>(
716 Buf - OutputSections.size() * sizeof(coff_section), Buf);769 Buf - OutputSections.size() * sizeof(coff_section), Buf);
717770
718 if (OutputSymtab.empty())771 if (OutputSymtab.empty() && Strtab.empty())
719 return;772 return;
720773
721 COFF->PointerToSymbolTable = PointerToSymbolTable;774 COFF->PointerToSymbolTable = PointerToSymbolTable;
...@@ -734,21 +787,40 @@ template <typename PEHeaderTy> void Writer::writeHeader() {...@@ -734,21 +787,40 @@ template <typename PEHeaderTy> void Writer::writeHeader() {
734}787}
735788
736void Writer::openFile(StringRef Path) {789void Writer::openFile(StringRef Path) {
737 Buffer = check(790 Buffer = CHECK(
738 FileOutputBuffer::create(Path, FileSize, FileOutputBuffer::F_executable),791 FileOutputBuffer::create(Path, FileSize, FileOutputBuffer::F_executable),
739 "failed to open " + Path);792 "failed to open " + Path);
740}793}
741794
742void Writer::fixSafeSEHSymbols() {795void Writer::createSEHTable(OutputSection *RData) {
743 if (!SEHTable)796 // Create SEH table. x86-only.
797 if (Config->Machine != I386)
798 return;
799
800 std::set<Defined *> Handlers;
801
802 for (ObjFile *File : ObjFile::Instances) {
803 if (!File->SEHCompat)
804 return;
805 for (uint32_t I : File->SXData)
806 if (Symbol *B = File->getSymbol(I))
807 if (B->isLive())
808 Handlers.insert(cast<Defined>(B));
809 }
810
811 if (Handlers.empty())
744 return;812 return;
813
814 SEHTable = make<SEHTableChunk>(Handlers);
815 RData->addChunk(SEHTable);
816
745 // Replace the absolute table symbol with a synthetic symbol pointing to the817 // Replace the absolute table symbol with a synthetic symbol pointing to the
746 // SEHTable chunk so that we can emit base relocations for it and resolve818 // SEHTable chunk so that we can emit base relocations for it and resolve
747 // section relative relocations.819 // section relative relocations.
748 Symbol *T = Symtab->find("___safe_se_handler_table");820 Symbol *T = Symtab->find("___safe_se_handler_table");
749 Symbol *C = Symtab->find("___safe_se_handler_count");821 Symbol *C = Symtab->find("___safe_se_handler_count");
750 replaceBody<DefinedSynthetic>(T, T->body()->getName(), SEHTable);822 replaceSymbol<DefinedSynthetic>(T, T->getName(), SEHTable);
751 cast<DefinedAbsolute>(C->body())->setVA(SEHTable->getSize() / 4);823 cast<DefinedAbsolute>(C)->setVA(SEHTable->getSize() / 4);
752}824}
753825
754// Handles /section options to allow users to overwrite826// Handles /section options to allow users to overwrite
...@@ -781,6 +853,25 @@ void Writer::writeSections() {...@@ -781,6 +853,25 @@ void Writer::writeSections() {
781 }853 }
782}854}
783855
856void Writer::writeBuildId() {
857 // If we're not writing a build id (e.g. because /debug is not specified),
858 // then just return;
859 if (!Config->Debug)
860 return;
861
862 assert(BuildId && "BuildId is not set!");
863
864 if (PreviousBuildId.hasValue()) {
865 *BuildId->BuildId = *PreviousBuildId;
866 BuildId->BuildId->PDB70.Age = BuildId->BuildId->PDB70.Age + 1;
867 return;
868 }
869
870 BuildId->BuildId->Signature.CVSignature = OMF::Signature::PDB70;
871 BuildId->BuildId->PDB70.Age = 1;
872 llvm::getRandomBytes(BuildId->BuildId->PDB70.Signature, 16);
873}
874
784// Sort .pdata section contents according to PE/COFF spec 5.5.875// Sort .pdata section contents according to PE/COFF spec 5.5.
785void Writer::sortExceptionTable() {876void Writer::sortExceptionTable() {
786 OutputSection *Sec = findSection(".pdata");877 OutputSection *Sec = findSection(".pdata");
...@@ -795,7 +886,7 @@ void Writer::sortExceptionTable() {...@@ -795,7 +886,7 @@ void Writer::sortExceptionTable() {
795 [](const Entry &A, const Entry &B) { return A.Begin < B.Begin; });886 [](const Entry &A, const Entry &B) { return A.Begin < B.Begin; });
796 return;887 return;
797 }888 }
798 if (Config->Machine == ARMNT) {889 if (Config->Machine == ARMNT || Config->Machine == ARM64) {
799 struct Entry { ulittle32_t Begin, Unwind; };890 struct Entry { ulittle32_t Begin, Unwind; };
800 sort(parallel::par, (Entry *)Begin, (Entry *)End,891 sort(parallel::par, (Entry *)Begin, (Entry *)End,
801 [](const Entry &A, const Entry &B) { return A.Begin < B.Begin; });892 [](const Entry &A, const Entry &B) { return A.Begin < B.Begin; });
...@@ -804,26 +895,6 @@ void Writer::sortExceptionTable() {...@@ -804,26 +895,6 @@ void Writer::sortExceptionTable() {
804 errs() << "warning: don't know how to handle .pdata.\n";895 errs() << "warning: don't know how to handle .pdata.\n";
805}896}
806897
807// Backfill the CVSignature in a PDB70 Debug Record. This backfilling allows us
808// to get reproducible builds.
809void Writer::writeBuildId() {
810 // There is nothing to backfill if BuildId was not setup.
811 if (BuildId == nullptr)
812 return;
813
814 assert(BuildId->DI->Signature.CVSignature == OMF::Signature::PDB70 &&
815 "only PDB 7.0 is supported");
816 assert(sizeof(BuildId->DI->PDB70.Signature) == 16 &&
817 "signature size mismatch");
818
819 // Compute an MD5 hash.
820 ArrayRef<uint8_t> Buf(Buffer->getBufferStart(), Buffer->getBufferEnd());
821 memcpy(BuildId->DI->PDB70.Signature, MD5::hash(Buf).data(), 16);
822
823 // TODO(compnerd) track the Age
824 BuildId->DI->PDB70.Age = 1;
825}
826
827OutputSection *Writer::findSection(StringRef Name) {898OutputSection *Writer::findSection(StringRef Name) {
828 for (OutputSection *Sec : OutputSections)899 for (OutputSection *Sec : OutputSections)
829 if (Sec->getName() == Name)900 if (Sec->getName() == Name)
deps/lld/COFF/Writer.h+2-4
...@@ -18,11 +18,9 @@...@@ -18,11 +18,9 @@
1818
19namespace lld {19namespace lld {
20namespace coff {20namespace coff {
21class SymbolTable;
22
23static const int PageSize = 4096;21static const int PageSize = 4096;
2422
25void writeResult(SymbolTable *T);23void writeResult();
2624
27// OutputSection represents a section in an output file. It's a25// OutputSection represents a section in an output file. It's a
28// container of chunks. OutputSection and Chunk are 1:N relationship.26// container of chunks. OutputSection and Chunk are 1:N relationship.
...@@ -36,7 +34,7 @@ public:...@@ -36,7 +34,7 @@ public:
36 void setFileOffset(uint64_t);34 void setFileOffset(uint64_t);
37 void addChunk(Chunk *C);35 void addChunk(Chunk *C);
38 llvm::StringRef getName() { return Name; }36 llvm::StringRef getName() { return Name; }
39 std::vector<Chunk *> &getChunks() { return Chunks; }37 ArrayRef<Chunk *> getChunks() { return Chunks; }
40 void addPermissions(uint32_t C);38 void addPermissions(uint32_t C);
41 void setPermissions(uint32_t C);39 void setPermissions(uint32_t C);
42 uint32_t getPermissions() { return Header.Characteristics & PermMask; }40 uint32_t getPermissions() { return Header.Characteristics & PermMask; }
deps/lld/Common/Args.cpp created+62
...@@ -0,0 +1,62 @@
1//===- Args.cpp -----------------------------------------------------------===//
2//
3// The LLVM Linker
4//
5// This file is distributed under the University of Illinois Open Source
6// License. See LICENSE.TXT for details.
7//
8//===----------------------------------------------------------------------===//
9
10#include "lld/Common/Args.h"
11#include "lld/Common/ErrorHandler.h"
12#include "llvm/ADT/SmallVector.h"
13#include "llvm/ADT/StringExtras.h"
14#include "llvm/ADT/StringRef.h"
15#include "llvm/Option/ArgList.h"
16
17using namespace llvm;
18using namespace lld;
19
20int lld::args::getInteger(opt::InputArgList &Args, unsigned Key, int Default) {
21 int V = Default;
22 if (auto *Arg = Args.getLastArg(Key)) {
23 StringRef S = Arg->getValue();
24 if (!to_integer(S, V, 10))
25 error(Arg->getSpelling() + ": number expected, but got '" + S + "'");
26 }
27 return V;
28}
29
30std::vector<StringRef> lld::args::getStrings(opt::InputArgList &Args, int Id) {
31 std::vector<StringRef> V;
32 for (auto *Arg : Args.filtered(Id))
33 V.push_back(Arg->getValue());
34 return V;
35}
36
37uint64_t lld::args::getZOptionValue(opt::InputArgList &Args, int Id,
38 StringRef Key, uint64_t Default) {
39 for (auto *Arg : Args.filtered(Id)) {
40 std::pair<StringRef, StringRef> KV = StringRef(Arg->getValue()).split('=');
41 if (KV.first == Key) {
42 uint64_t Result = Default;
43 if (!to_integer(KV.second, Result))
44 error("invalid " + Key + ": " + KV.second);
45 return Result;
46 }
47 }
48 return Default;
49}
50
51std::vector<StringRef> lld::args::getLines(MemoryBufferRef MB) {
52 SmallVector<StringRef, 0> Arr;
53 MB.getBuffer().split(Arr, '\n');
54
55 std::vector<StringRef> Ret;
56 for (StringRef S : Arr) {
57 S = S.trim();
58 if (!S.empty() && S[0] != '#')
59 Ret.push_back(S);
60 }
61 return Ret;
62}
deps/lld/Common/CMakeLists.txt created+32
...@@ -0,0 +1,32 @@
1if(NOT LLD_BUILT_STANDALONE)
2 set(tablegen_deps intrinsics_gen)
3endif()
4
5add_lld_library(lldCommon
6 Args.cpp
7 ErrorHandler.cpp
8 Memory.cpp
9 Reproduce.cpp
10 Strings.cpp
11 TargetOptionsCommandFlags.cpp
12 Threads.cpp
13 Version.cpp
14
15 ADDITIONAL_HEADER_DIRS
16 ${LLD_INCLUDE_DIR}/lld/Common
17
18 LINK_COMPONENTS
19 Codegen
20 Core
21 Demangle
22 MC
23 Option
24 Support
25 Target
26
27 LINK_LIBS
28 ${LLVM_PTHREAD_LIB}
29
30 DEPENDS
31 ${tablegen_deps}
32 )
deps/lld/Common/ErrorHandler.cpp created+118
...@@ -0,0 +1,118 @@
1//===- ErrorHandler.cpp ---------------------------------------------------===//
2//
3// The LLVM Linker
4//
5// This file is distributed under the University of Illinois Open Source
6// License. See LICENSE.TXT for details.
7//
8//===----------------------------------------------------------------------===//
9
10#include "lld/Common/ErrorHandler.h"
11
12#include "lld/Common/Threads.h"
13
14#include "llvm/ADT/Twine.h"
15#include "llvm/Support/Error.h"
16#include "llvm/Support/ManagedStatic.h"
17#include "llvm/Support/raw_ostream.h"
18#include <mutex>
19
20#if !defined(_MSC_VER) && !defined(__MINGW32__)
21#include <unistd.h>
22#endif
23
24using namespace llvm;
25using namespace lld;
26
27// The functions defined in this file can be called from multiple threads,
28// but outs() or errs() are not thread-safe. We protect them using a mutex.
29static std::mutex Mu;
30
31// Prints "\n" or does nothing, depending on Msg contents of
32// the previous call of this function.
33static void newline(raw_ostream *ErrorOS, const Twine &Msg) {
34 // True if the previous error message contained "\n".
35 // We want to separate multi-line error messages with a newline.
36 static bool Flag;
37
38 if (Flag)
39 *ErrorOS << "\n";
40 Flag = StringRef(Msg.str()).contains('\n');
41}
42
43ErrorHandler &lld::errorHandler() {
44 static ErrorHandler Handler;
45 return Handler;
46}
47
48void lld::exitLld(int Val) {
49 // Delete the output buffer so that any tempory file is deleted.
50 errorHandler().OutputBuffer.reset();
51
52 // Dealloc/destroy ManagedStatic variables before calling
53 // _exit(). In a non-LTO build, this is a nop. In an LTO
54 // build allows us to get the output of -time-passes.
55 llvm_shutdown();
56
57 outs().flush();
58 errs().flush();
59 _exit(Val);
60}
61
62void ErrorHandler::print(StringRef S, raw_ostream::Colors C) {
63 *ErrorOS << LogName << ": ";
64 if (ColorDiagnostics) {
65 ErrorOS->changeColor(C, true);
66 *ErrorOS << S;
67 ErrorOS->resetColor();
68 } else {
69 *ErrorOS << S;
70 }
71}
72
73void ErrorHandler::log(const Twine &Msg) {
74 if (Verbose) {
75 std::lock_guard<std::mutex> Lock(Mu);
76 *ErrorOS << LogName << ": " << Msg << "\n";
77 }
78}
79
80void ErrorHandler::message(const Twine &Msg) {
81 std::lock_guard<std::mutex> Lock(Mu);
82 outs() << Msg << "\n";
83 outs().flush();
84}
85
86void ErrorHandler::warn(const Twine &Msg) {
87 if (FatalWarnings) {
88 error(Msg);
89 return;
90 }
91
92 std::lock_guard<std::mutex> Lock(Mu);
93 newline(ErrorOS, Msg);
94 print("warning: ", raw_ostream::MAGENTA);
95 *ErrorOS << Msg << "\n";
96}
97
98void ErrorHandler::error(const Twine &Msg) {
99 std::lock_guard<std::mutex> Lock(Mu);
100 newline(ErrorOS, Msg);
101
102 if (ErrorLimit == 0 || ErrorCount < ErrorLimit) {
103 print("error: ", raw_ostream::RED);
104 *ErrorOS << Msg << "\n";
105 } else if (ErrorCount == ErrorLimit) {
106 print("error: ", raw_ostream::RED);
107 *ErrorOS << ErrorLimitExceededMsg << "\n";
108 if (ExitEarly)
109 exitLld(1);
110 }
111
112 ++ErrorCount;
113}
114
115void ErrorHandler::fatal(const Twine &Msg) {
116 error(Msg);
117 exitLld(1);
118}
deps/lld/Common/Memory.cpp created+23
...@@ -0,0 +1,23 @@
1//===- Memory.cpp ---------------------------------------------------------===//
2//
3// The LLVM Linker
4//
5// This file is distributed under the University of Illinois Open Source
6// License. See LICENSE.TXT for details.
7//
8//===----------------------------------------------------------------------===//
9
10#include "lld/Common/Memory.h"
11
12using namespace llvm;
13using namespace lld;
14
15BumpPtrAllocator lld::BAlloc;
16StringSaver lld::Saver{BAlloc};
17std::vector<SpecificAllocBase *> lld::SpecificAllocBase::Instances;
18
19void lld::freeArena() {
20 for (SpecificAllocBase *Alloc : SpecificAllocBase::Instances)
21 Alloc->reset();
22 BAlloc.Reset();
23}
deps/lld/Common/Reproduce.cpp created+66
...@@ -0,0 +1,66 @@
1//===- Reproduce.cpp - Utilities for creating reproducers -----------------===//
2//
3// The LLVM Linker
4//
5// This file is distributed under the University of Illinois Open Source
6// License. See LICENSE.TXT for details.
7//
8//===----------------------------------------------------------------------===//
9
10#include "lld/Common/Reproduce.h"
11#include "llvm/Option/Arg.h"
12#include "llvm/Support/Error.h"
13#include "llvm/Support/FileSystem.h"
14#include "llvm/Support/Path.h"
15
16using namespace lld;
17using namespace llvm;
18using namespace llvm::sys;
19
20// Makes a given pathname an absolute path first, and then remove
21// beginning /. For example, "../foo.o" is converted to "home/john/foo.o",
22// assuming that the current directory is "/home/john/bar".
23// Returned string is a forward slash separated path even on Windows to avoid
24// a mess with backslash-as-escape and backslash-as-path-separator.
25std::string lld::relativeToRoot(StringRef Path) {
26 SmallString<128> Abs = Path;
27 if (fs::make_absolute(Abs))
28 return Path;
29 path::remove_dots(Abs, /*remove_dot_dot=*/true);
30
31 // This is Windows specific. root_name() returns a drive letter
32 // (e.g. "c:") or a UNC name (//net). We want to keep it as part
33 // of the result.
34 SmallString<128> Res;
35 StringRef Root = path::root_name(Abs);
36 if (Root.endswith(":"))
37 Res = Root.drop_back();
38 else if (Root.startswith("//"))
39 Res = Root.substr(2);
40
41 path::append(Res, path::relative_path(Abs));
42 return path::convert_to_slash(Res);
43}
44
45// Quote a given string if it contains a space character.
46std::string lld::quote(StringRef S) {
47 if (S.contains(' '))
48 return ("\"" + S + "\"").str();
49 return S;
50}
51
52std::string lld::rewritePath(StringRef S) {
53 if (fs::exists(S))
54 return relativeToRoot(S);
55 return S;
56}
57
58std::string lld::toString(const opt::Arg &Arg) {
59 std::string K = Arg.getSpelling();
60 if (Arg.getNumValues() == 0)
61 return K;
62 std::string V = quote(Arg.getValue());
63 if (Arg.getOption().getRenderStyle() == opt::Option::RenderJoinedStyle)
64 return K + V;
65 return K + " " + V;
66}
deps/lld/Common/Strings.cpp created+32
...@@ -0,0 +1,32 @@
1//===- Strings.cpp -------------------------------------------------------===//
2//
3// The LLVM Linker
4//
5// This file is distributed under the University of Illinois Open Source
6// License. See LICENSE.TXT for details.
7//
8//===----------------------------------------------------------------------===//
9
10#include "lld/Common/Strings.h"
11#include "llvm/Demangle/Demangle.h"
12
13using namespace llvm;
14using namespace lld;
15
16// Returns the demangled C++ symbol name for Name.
17Optional<std::string> lld::demangleItanium(StringRef Name) {
18 // itaniumDemangle can be used to demangle strings other than symbol
19 // names which do not necessarily start with "_Z". Name can be
20 // either a C or C++ symbol. Don't call itaniumDemangle if the name
21 // does not look like a C++ symbol name to avoid getting unexpected
22 // result for a C symbol that happens to match a mangled type name.
23 if (!Name.startswith("_Z"))
24 return None;
25
26 char *Buf = itaniumDemangle(Name.str().c_str(), nullptr, nullptr, nullptr);
27 if (!Buf)
28 return None;
29 std::string S(Buf);
30 free(Buf);
31 return S;
32}
deps/lld/Common/TargetOptionsCommandFlags.cpp created+32
...@@ -0,0 +1,32 @@
1//===-- TargetOptionsCommandFlags.cpp ---------------------------*- C++ -*-===//
2//
3// The LLVM Linker
4//
5// This file is distributed under the University of Illinois Open Source
6// License. See LICENSE.TXT for details.
7//
8//===----------------------------------------------------------------------===//
9//
10// This file exists as a place for global variables defined in LLVM's
11// CodeGen/CommandFlags.def. By putting the resulting object file in
12// an archive and linking with it, the definitions will automatically be
13// included when needed and skipped when already present.
14//
15//===----------------------------------------------------------------------===//
16
17#include "lld/Common/TargetOptionsCommandFlags.h"
18
19#include "llvm/CodeGen/CommandFlags.def"
20#include "llvm/Target/TargetOptions.h"
21
22// Define an externally visible version of
23// InitTargetOptionsFromCodeGenFlags, so that its functionality can be
24// used without having to include llvm/CodeGen/CommandFlags.def, which
25// would lead to multiple definitions of the command line flags.
26llvm::TargetOptions lld::InitTargetOptionsFromCodeGenFlags() {
27 return ::InitTargetOptionsFromCodeGenFlags();
28}
29
30llvm::Optional<llvm::CodeModel::Model> lld::GetCodeModelFromCMModel() {
31 return getCodeModel();
32}
deps/lld/Common/Threads.cpp created+12
...@@ -0,0 +1,12 @@
1//===- Threads.cpp --------------------------------------------------------===//
2//
3// The LLVM Linker
4//
5// This file is distributed under the University of Illinois Open Source
6// License. See LICENSE.TXT for details.
7//
8//===----------------------------------------------------------------------===//
9
10#include "lld/Common/Threads.h"
11
12bool lld::ThreadsEnabled = true;
deps/lld/Common/Version.cpp created+43
...@@ -0,0 +1,43 @@
1//===- lib/Common/Version.cpp - LLD Version Number ---------------*- C++-=====//
2//
3// The LLVM Compiler Infrastructure
4//
5// This file is distributed under the University of Illinois Open Source
6// License. See LICENSE.TXT for details.
7//
8//===----------------------------------------------------------------------===//
9//
10// This file defines several version-related utility functions for LLD.
11//
12//===----------------------------------------------------------------------===//
13
14#include "lld/Common/Version.h"
15
16using namespace llvm;
17
18// Returns an SVN repository path, which is usually "trunk".
19static std::string getRepositoryPath() {
20 StringRef S = LLD_REPOSITORY_STRING;
21 size_t Pos = S.find("lld/");
22 if (Pos != StringRef::npos)
23 return S.substr(Pos + 4);
24 return S;
25}
26
27// Returns an SVN repository name, e.g., " (trunk 284614)"
28// or an empty string if no repository info is available.
29static std::string getRepository() {
30 std::string Repo = getRepositoryPath();
31 std::string Rev = LLD_REVISION_STRING;
32
33 if (Repo.empty() && Rev.empty())
34 return "";
35 if (!Repo.empty() && !Rev.empty())
36 return " (" + Repo + " " + Rev + ")";
37 return " (" + Repo + Rev + ")";
38}
39
40// Returns a version string, e.g., "LLD 4.0 (lld/trunk 284614)".
41std::string lld::getLLDVersion() {
42 return "LLD " + std::string(LLD_VERSION_STRING) + getRepository();
43}
deps/lld/ELF/AArch64ErrataFix.cpp created+648
...@@ -0,0 +1,648 @@
1//===- AArch64ErrataFix.cpp -----------------------------------------------===//
2//
3// The LLVM Linker
4//
5// This file is distributed under the University of Illinois Open Source
6// License. See LICENSE.TXT for details.
7//
8//===----------------------------------------------------------------------===//
9// This file implements Section Patching for the purpose of working around
10// errata in CPUs. The general principle is that an erratum sequence of one or
11// more instructions is detected in the instruction stream, one of the
12// instructions in the sequence is replaced with a branch to a patch sequence
13// of replacement instructions. At the end of the replacement sequence the
14// patch branches back to the instruction stream.
15
16// This technique is only suitable for fixing an erratum when:
17// - There is a set of necessary conditions required to trigger the erratum that
18// can be detected at static link time.
19// - There is a set of replacement instructions that can be used to remove at
20// least one of the necessary conditions that trigger the erratum.
21// - We can overwrite an instruction in the erratum sequence with a branch to
22// the replacement sequence.
23// - We can place the replacement sequence within range of the branch.
24
25// FIXME:
26// - The implementation here only supports one patch, the AArch64 Cortex-53
27// errata 843419 that affects r0p0, r0p1, r0p2 and r0p4 versions of the core.
28// To keep the initial version simple there is no support for multiple
29// architectures or selection of different patches.
30//===----------------------------------------------------------------------===//
31
32#include "AArch64ErrataFix.h"
33#include "Config.h"
34#include "LinkerScript.h"
35#include "OutputSections.h"
36#include "Relocations.h"
37#include "Strings.h"
38#include "Symbols.h"
39#include "SyntheticSections.h"
40#include "Target.h"
41#include "lld/Common/Memory.h"
42
43#include "llvm/Support/Endian.h"
44#include "llvm/Support/raw_ostream.h"
45#include <algorithm>
46
47using namespace llvm;
48using namespace llvm::ELF;
49using namespace llvm::object;
50using namespace llvm::support::endian;
51
52using namespace lld;
53using namespace lld::elf;
54
55// Helper functions to identify instructions and conditions needed to trigger
56// the Cortex-A53-843419 erratum.
57
58// ADRP
59// | 1 | immlo (2) | 1 | 0 0 0 0 | immhi (19) | Rd (5) |
60static bool isADRP(uint32_t Instr) {
61 return (Instr & 0x9f000000) == 0x90000000;
62}
63
64// Load and store bit patterns from ARMv8-A ARM ARM.
65// Instructions appear in order of appearance starting from table in
66// C4.1.3 Loads and Stores.
67
68// All loads and stores have 1 (at bit postion 27), (0 at bit position 25).
69// | op0 x op1 (2) | 1 op2 0 op3 (2) | x | op4 (5) | xxxx | op5 (2) | x (10) |
70static bool isLoadStoreClass(uint32_t Instr) {
71 return (Instr & 0x0a000000) == 0x08000000;
72}
73
74// LDN/STN multiple no offset
75// | 0 Q 00 | 1100 | 0 L 00 | 0000 | opcode (4) | size (2) | Rn (5) | Rt (5) |
76// LDN/STN multiple post-indexed
77// | 0 Q 00 | 1100 | 1 L 0 | Rm (5)| opcode (4) | size (2) | Rn (5) | Rt (5) |
78// L == 0 for stores.
79
80// Utility routine to decode opcode field of LDN/STN multiple structure
81// instructions to find the ST1 instructions.
82// opcode == 0010 ST1 4 registers.
83// opcode == 0110 ST1 3 registers.
84// opcode == 0111 ST1 1 register.
85// opcode == 1010 ST1 2 registers.
86static bool isST1MultipleOpcode(uint32_t Instr) {
87 return (Instr & 0x0000f000) == 0x00002000 ||
88 (Instr & 0x0000f000) == 0x00006000 ||
89 (Instr & 0x0000f000) == 0x00007000 ||
90 (Instr & 0x0000f000) == 0x0000a000;
91}
92
93static bool isST1Multiple(uint32_t Instr) {
94 return (Instr & 0xbfff0000) == 0x0c000000 && isST1MultipleOpcode(Instr);
95}
96
97// Writes to Rn (writeback).
98static bool isST1MultiplePost(uint32_t Instr) {
99 return (Instr & 0xbfe00000) == 0x0c800000 && isST1MultipleOpcode(Instr);
100}
101
102// LDN/STN single no offset
103// | 0 Q 00 | 1101 | 0 L R 0 | 0000 | opc (3) S | size (2) | Rn (5) | Rt (5)|
104// LDN/STN single post-indexed
105// | 0 Q 00 | 1101 | 1 L R | Rm (5) | opc (3) S | size (2) | Rn (5) | Rt (5)|
106// L == 0 for stores
107
108// Utility routine to decode opcode field of LDN/STN single structure
109// instructions to find the ST1 instructions.
110// R == 0 for ST1 and ST3, R == 1 for ST2 and ST4.
111// opcode == 000 ST1 8-bit.
112// opcode == 010 ST1 16-bit.
113// opcode == 100 ST1 32 or 64-bit (Size determines which).
114static bool isST1SingleOpcode(uint32_t Instr) {
115 return (Instr & 0x0040e000) == 0x00000000 ||
116 (Instr & 0x0040e000) == 0x00004000 ||
117 (Instr & 0x0040e000) == 0x00008000;
118}
119
120static bool isST1Single(uint32_t Instr) {
121 return (Instr & 0xbfff0000) == 0x0d000000 && isST1SingleOpcode(Instr);
122}
123
124// Writes to Rn (writeback).
125static bool isST1SinglePost(uint32_t Instr) {
126 return (Instr & 0xbfe00000) == 0x0d800000 && isST1SingleOpcode(Instr);
127}
128
129static bool isST1(uint32_t Instr) {
130 return isST1Multiple(Instr) || isST1MultiplePost(Instr) ||
131 isST1Single(Instr) || isST1SinglePost(Instr);
132}
133
134// Load/store exclusive
135// | size (2) 00 | 1000 | o2 L o1 | Rs (5) | o0 | Rt2 (5) | Rn (5) | Rt (5) |
136// L == 0 for Stores.
137static bool isLoadStoreExclusive(uint32_t Instr) {
138 return (Instr & 0x3f000000) == 0x08000000;
139}
140
141static bool isLoadExclusive(uint32_t Instr) {
142 return (Instr & 0x3f400000) == 0x08400000;
143}
144
145// Load register literal
146// | opc (2) 01 | 1 V 00 | imm19 | Rt (5) |
147static bool isLoadLiteral(uint32_t Instr) {
148 return (Instr & 0x3b000000) == 0x18000000;
149}
150
151// Load/store no-allocate pair
152// (offset)
153// | opc (2) 10 | 1 V 00 | 0 L | imm7 | Rt2 (5) | Rn (5) | Rt (5) |
154// L == 0 for stores.
155// Never writes to register
156static bool isSTNP(uint32_t Instr) {
157 return (Instr & 0x3bc00000) == 0x28000000;
158}
159
160// Load/store register pair
161// (post-indexed)
162// | opc (2) 10 | 1 V 00 | 1 L | imm7 | Rt2 (5) | Rn (5) | Rt (5) |
163// L == 0 for stores, V == 0 for Scalar, V == 1 for Simd/FP
164// Writes to Rn.
165static bool isSTPPost(uint32_t Instr) {
166 return (Instr & 0x3bc00000) == 0x28800000;
167}
168
169// (offset)
170// | opc (2) 10 | 1 V 01 | 0 L | imm7 | Rt2 (5) | Rn (5) | Rt (5) |
171static bool isSTPOffset(uint32_t Instr) {
172 return (Instr & 0x3bc00000) == 0x29000000;
173}
174
175// (pre-index)
176// | opc (2) 10 | 1 V 01 | 1 L | imm7 | Rt2 (5) | Rn (5) | Rt (5) |
177// Writes to Rn.
178static bool isSTPPre(uint32_t Instr) {
179 return (Instr & 0x3bc00000) == 0x29800000;
180}
181
182static bool isSTP(uint32_t Instr) {
183 return isSTPPost(Instr) || isSTPOffset(Instr) || isSTPPre(Instr);
184}
185
186// Load/store register (unscaled immediate)
187// | size (2) 11 | 1 V 00 | opc (2) 0 | imm9 | 00 | Rn (5) | Rt (5) |
188// V == 0 for Scalar, V == 1 for Simd/FP.
189static bool isLoadStoreUnscaled(uint32_t Instr) {
190 return (Instr & 0x3b000c00) == 0x38000000;
191}
192
193// Load/store register (immediate post-indexed)
194// | size (2) 11 | 1 V 00 | opc (2) 0 | imm9 | 01 | Rn (5) | Rt (5) |
195static bool isLoadStoreImmediatePost(uint32_t Instr) {
196 return (Instr & 0x3b200c00) == 0x38000400;
197}
198
199// Load/store register (unprivileged)
200// | size (2) 11 | 1 V 00 | opc (2) 0 | imm9 | 10 | Rn (5) | Rt (5) |
201static bool isLoadStoreUnpriv(uint32_t Instr) {
202 return (Instr & 0x3b200c00) == 0x38000800;
203}
204
205// Load/store register (immediate pre-indexed)
206// | size (2) 11 | 1 V 00 | opc (2) 0 | imm9 | 11 | Rn (5) | Rt (5) |
207static bool isLoadStoreImmediatePre(uint32_t Instr) {
208 return (Instr & 0x3b200c00) == 0x38000c00;
209}
210
211// Load/store register (register offset)
212// | size (2) 11 | 1 V 00 | opc (2) 1 | Rm (5) | option (3) S | 10 | Rn | Rt |
213static bool isLoadStoreRegisterOff(uint32_t Instr) {
214 return (Instr & 0x3b200c00) == 0x38200800;
215}
216
217// Load/store register (unsigned immediate)
218// | size (2) 11 | 1 V 01 | opc (2) | imm12 | Rn (5) | Rt (5) |
219static bool isLoadStoreRegisterUnsigned(uint32_t Instr) {
220 return (Instr & 0x3b000000) == 0x39000000;
221}
222
223// Rt is always in bit position 0 - 4.
224static uint32_t getRt(uint32_t Instr) { return (Instr & 0x1f); }
225
226// Rn is always in bit position 5 - 9.
227static uint32_t getRn(uint32_t Instr) { return (Instr >> 5) & 0x1f; }
228
229// C4.1.2 Branches, Exception Generating and System instructions
230// | op0 (3) 1 | 01 op1 (4) | x (22) |
231// op0 == 010 101 op1 == 0xxx Conditional Branch.
232// op0 == 110 101 op1 == 1xxx Unconditional Branch Register.
233// op0 == x00 101 op1 == xxxx Unconditional Branch immediate.
234// op0 == x01 101 op1 == 0xxx Compare and branch immediate.
235// op0 == x01 101 op1 == 1xxx Test and branch immediate.
236static bool isBranch(uint32_t Instr) {
237 return ((Instr & 0xfe000000) == 0xd6000000) || // Cond branch.
238 ((Instr & 0xfe000000) == 0x54000000) || // Uncond branch reg.
239 ((Instr & 0x7c000000) == 0x14000000) || // Uncond branch imm.
240 ((Instr & 0x7c000000) == 0x34000000); // Compare and test branch.
241}
242
243static bool isV8SingleRegisterNonStructureLoadStore(uint32_t Instr) {
244 return isLoadStoreUnscaled(Instr) || isLoadStoreImmediatePost(Instr) ||
245 isLoadStoreUnpriv(Instr) || isLoadStoreImmediatePre(Instr) ||
246 isLoadStoreRegisterOff(Instr) || isLoadStoreRegisterUnsigned(Instr);
247}
248
249// Note that this function refers to v8.0 only and does not include the
250// additional load and store instructions added for in later revisions of
251// the architecture such as the Atomic memory operations introduced
252// in v8.1.
253static bool isV8NonStructureLoad(uint32_t Instr) {
254 if (isLoadExclusive(Instr))
255 return true;
256 if (isLoadLiteral(Instr))
257 return true;
258 else if (isV8SingleRegisterNonStructureLoadStore(Instr)) {
259 // For Load and Store single register, Loads are derived from a
260 // combination of the Size, V and Opc fields.
261 uint32_t Size = (Instr >> 30) & 0xff;
262 uint32_t V = (Instr >> 26) & 0x1;
263 uint32_t Opc = (Instr >> 22) & 0x3;
264 // For the load and store instructions that we are decoding.
265 // Opc == 0 are all stores.
266 // Opc == 1 with a couple of exceptions are loads. The exceptions are:
267 // Size == 00 (0), V == 1, Opc == 10 (2) which is a store and
268 // Size == 11 (3), V == 0, Opc == 10 (2) which is a prefetch.
269 return Opc != 0 && !(Size == 0 && V == 1 && Opc == 2) &&
270 !(Size == 3 && V == 0 && Opc == 2);
271 }
272 return false;
273}
274
275// The following decode instructions are only complete up to the instructions
276// needed for errata 843419.
277
278// Instruction with writeback updates the index register after the load/store.
279static bool hasWriteback(uint32_t Instr) {
280 return isLoadStoreImmediatePre(Instr) || isLoadStoreImmediatePost(Instr) ||
281 isSTPPre(Instr) || isSTPPost(Instr) || isST1SinglePost(Instr) ||
282 isST1MultiplePost(Instr);
283}
284
285// For the load and store class of instructions, a load can write to the
286// destination register, a load and a store can write to the base register when
287// the instruction has writeback.
288static bool doesLoadStoreWriteToReg(uint32_t Instr, uint32_t Reg) {
289 return (isV8NonStructureLoad(Instr) && getRt(Instr) == Reg) ||
290 (hasWriteback(Instr) && getRn(Instr) == Reg);
291}
292
293// Scanner for Cortex-A53 errata 843419
294// Full details are available in the Cortex A53 MPCore revision 0 Software
295// Developers Errata Notice (ARM-EPM-048406).
296//
297// The instruction sequence that triggers the erratum is common in compiled
298// AArch64 code, however it is sensitive to the offset of the sequence within
299// a 4k page. This means that by scanning and fixing the patch after we have
300// assigned addresses we only need to disassemble and fix instances of the
301// sequence in the range of affected offsets.
302//
303// In summary the erratum conditions are a series of 4 instructions:
304// 1.) An ADRP instruction that writes to register Rn with low 12 bits of
305// address of instruction either 0xff8 or 0xffc.
306// 2.) A load or store instruction that can be:
307// - A single register load or store, of either integer or vector registers.
308// - An STP or STNP, of either integer or vector registers.
309// - An Advanced SIMD ST1 store instruction.
310// - Must not write to Rn, but may optionally read from it.
311// 3.) An optional instruction that is not a branch and does not write to Rn.
312// 4.) A load or store from the Load/store register (unsigned immediate) class
313// that uses Rn as the base address register.
314//
315// Note that we do not attempt to scan for Sequence 2 as described in the
316// Software Developers Errata Notice as this has been assessed to be extremely
317// unlikely to occur in compiled code. This matches gold and ld.bfd behavior.
318
319// Return true if the Instruction sequence Adrp, Instr2, and Instr4 match
320// the erratum sequence. The Adrp, Instr2 and Instr4 correspond to 1.), 2.),
321// and 4.) in the Scanner for Cortex-A53 errata comment above.
322static bool is843419ErratumSequence(uint32_t Instr1, uint32_t Instr2,
323 uint32_t Instr4) {
324 if (!isADRP(Instr1))
325 return false;
326
327 uint32_t Rn = getRt(Instr1);
328 return isLoadStoreClass(Instr2) &&
329 (isLoadStoreExclusive(Instr2) || isLoadLiteral(Instr2) ||
330 isV8SingleRegisterNonStructureLoadStore(Instr2) || isSTP(Instr2) ||
331 isSTNP(Instr2) || isST1(Instr2)) &&
332 !doesLoadStoreWriteToReg(Instr2, Rn) &&
333 isLoadStoreRegisterUnsigned(Instr4) && getRn(Instr4) == Rn;
334}
335
336// Scan the instruction sequence starting at Offset Off from the base of
337// InputSection IS. We update Off in this function rather than in the caller as
338// we can skip ahead much further into the section when we know how many
339// instructions we've scanned.
340// Return the offset of the load or store instruction in IS that we want to
341// patch or 0 if no patch required.
342static uint64_t scanCortexA53Errata843419(InputSection *IS, uint64_t &Off,
343 uint64_t Limit) {
344 uint64_t ISAddr = IS->getParent()->Addr + IS->OutSecOff;
345
346 // Advance Off so that (ISAddr + Off) modulo 0x1000 is at least 0xff8.
347 uint64_t InitialPageOff = (ISAddr + Off) & 0xfff;
348 if (InitialPageOff < 0xff8)
349 Off += 0xff8 - InitialPageOff;
350
351 bool OptionalAllowed = Limit - Off > 12;
352 if (Off >= Limit || Limit - Off < 12) {
353 // Need at least 3 4-byte sized instructions to trigger erratum.
354 Off = Limit;
355 return 0;
356 }
357
358 uint64_t PatchOff = 0;
359 const uint8_t *Buf = IS->Data.begin();
360 const uint32_t *InstBuf = reinterpret_cast<const uint32_t *>(Buf + Off);
361 uint32_t Instr1 = *InstBuf++;
362 uint32_t Instr2 = *InstBuf++;
363 uint32_t Instr3 = *InstBuf++;
364 if (is843419ErratumSequence(Instr1, Instr2, Instr3)) {
365 PatchOff = Off + 8;
366 } else if (OptionalAllowed && !isBranch(Instr3)) {
367 uint32_t Instr4 = *InstBuf++;
368 if (is843419ErratumSequence(Instr1, Instr2, Instr4))
369 PatchOff = Off + 12;
370 }
371 if (((ISAddr + Off) & 0xfff) == 0xff8)
372 Off += 4;
373 else
374 Off += 0xffc;
375 return PatchOff;
376}
377
378class lld::elf::Patch843419Section : public SyntheticSection {
379public:
380 Patch843419Section(InputSection *P, uint64_t Off);
381
382 void writeTo(uint8_t *Buf) override;
383
384 size_t getSize() const override { return 8; }
385
386 uint64_t getLDSTAddr() const;
387
388 // The Section we are patching.
389 const InputSection *Patchee;
390 // The offset of the instruction in the Patchee section we are patching.
391 uint64_t PatcheeOffset;
392 // A label for the start of the Patch that we can use as a relocation target.
393 Symbol *PatchSym;
394};
395
396lld::elf::Patch843419Section::Patch843419Section(InputSection *P, uint64_t Off)
397 : SyntheticSection(SHF_ALLOC | SHF_EXECINSTR, SHT_PROGBITS, 4,
398 ".text.patch"),
399 Patchee(P), PatcheeOffset(Off) {
400 this->Parent = P->getParent();
401 PatchSym = addSyntheticLocal(
402 Saver.save("__CortexA53843419_" + utohexstr(getLDSTAddr())), STT_FUNC, 0,
403 getSize(), *this);
404 addSyntheticLocal(Saver.save("$x"), STT_NOTYPE, 0, 0, *this);
405}
406
407uint64_t lld::elf::Patch843419Section::getLDSTAddr() const {
408 return Patchee->getParent()->Addr + Patchee->OutSecOff + PatcheeOffset;
409}
410
411void lld::elf::Patch843419Section::writeTo(uint8_t *Buf) {
412 // Copy the instruction that we will be replacing with a branch in the
413 // Patchee Section.
414 write32le(Buf, read32le(Patchee->Data.begin() + PatcheeOffset));
415
416 // Apply any relocation transferred from the original PatcheeSection.
417 // For a SyntheticSection Buf already has OutSecOff added, but relocateAlloc
418 // also adds OutSecOff so we need to subtract to avoid double counting.
419 this->relocateAlloc(Buf - OutSecOff, Buf - OutSecOff + getSize());
420
421 // Return address is the next instruction after the one we have just copied.
422 uint64_t S = getLDSTAddr() + 4;
423 uint64_t P = PatchSym->getVA() + 4;
424 Target->relocateOne(Buf + 4, R_AARCH64_JUMP26, S - P);
425}
426
427void AArch64Err843419Patcher::init() {
428 // The AArch64 ABI permits data in executable sections. We must avoid scanning
429 // this data as if it were instructions to avoid false matches. We use the
430 // mapping symbols in the InputObjects to identify this data, caching the
431 // results in SectionMap so we don't have to recalculate it each pass.
432
433 // The ABI Section 4.5.4 Mapping symbols; defines local symbols that describe
434 // half open intervals [Symbol Value, Next Symbol Value) of code and data
435 // within sections. If there is no next symbol then the half open interval is
436 // [Symbol Value, End of section). The type, code or data, is determined by
437 // the mapping symbol name, $x for code, $d for data.
438 auto IsCodeMapSymbol = [](const Symbol *B) {
439 return B->getName() == "$x" || B->getName().startswith("$x.");
440 };
441 auto IsDataMapSymbol = [](const Symbol *B) {
442 return B->getName() == "$d" || B->getName().startswith("$d.");
443 };
444
445 // Collect mapping symbols for every executable InputSection.
446 for (InputFile *File : ObjectFiles) {
447 auto *F = cast<ObjFile<ELF64LE>>(File);
448 for (Symbol *B : F->getLocalSymbols()) {
449 auto *Def = dyn_cast<Defined>(B);
450 if (!Def)
451 continue;
452 if (!IsCodeMapSymbol(Def) && !IsDataMapSymbol(Def))
453 continue;
454 if (auto *Sec = dyn_cast<InputSection>(Def->Section))
455 if (Sec->Flags & SHF_EXECINSTR)
456 SectionMap[Sec].push_back(Def);
457 }
458 }
459 // For each InputSection make sure the mapping symbols are in sorted in
460 // ascending order and free from consecutive runs of mapping symbols with
461 // the same type. For example we must remove the redundant $d.1 from $x.0
462 // $d.0 $d.1 $x.1.
463 for (auto &KV : SectionMap) {
464 std::vector<const Defined *> &MapSyms = KV.second;
465 if (MapSyms.size() <= 1)
466 continue;
467 std::stable_sort(
468 MapSyms.begin(), MapSyms.end(),
469 [](const Defined *A, const Defined *B) { return A->Value < B->Value; });
470 MapSyms.erase(
471 std::unique(MapSyms.begin(), MapSyms.end(),
472 [=](const Defined *A, const Defined *B) {
473 return (IsCodeMapSymbol(A) && IsCodeMapSymbol(B)) ||
474 (IsDataMapSymbol(A) && IsDataMapSymbol(B));
475 }),
476 MapSyms.end());
477 }
478 Initialized = true;
479}
480
481// Insert the PatchSections we have created back into the
482// InputSectionDescription. As inserting patches alters the addresses of
483// InputSections that follow them, we try and place the patches after all the
484// executable sections, although we may need to insert them earlier if the
485// InputSectionDescription is larger than the maximum branch range.
486void AArch64Err843419Patcher::insertPatches(
487 InputSectionDescription &ISD, std::vector<Patch843419Section *> &Patches) {
488 uint64_t ISLimit;
489 uint64_t PrevISLimit = ISD.Sections.front()->OutSecOff;
490 uint64_t PatchUpperBound = PrevISLimit + Target->ThunkSectionSpacing;
491
492 // Set the OutSecOff of patches to the place where we want to insert them.
493 // We use a similar strategy to Thunk placement. Place patches roughly
494 // every multiple of maximum branch range.
495 auto PatchIt = Patches.begin();
496 auto PatchEnd = Patches.end();
497 for (const InputSection *IS : ISD.Sections) {
498 ISLimit = IS->OutSecOff + IS->getSize();
499 if (ISLimit > PatchUpperBound) {
500 while (PatchIt != PatchEnd) {
501 if ((*PatchIt)->getLDSTAddr() >= PrevISLimit)
502 break;
503 (*PatchIt)->OutSecOff = PrevISLimit;
504 ++PatchIt;
505 }
506 PatchUpperBound = PrevISLimit + Target->ThunkSectionSpacing;
507 }
508 PrevISLimit = ISLimit;
509 }
510 for (; PatchIt != PatchEnd; ++PatchIt) {
511 (*PatchIt)->OutSecOff = ISLimit;
512 }
513
514 // merge all patch sections. We use the OutSecOff assigned above to
515 // determine the insertion point. This is ok as we only merge into an
516 // InputSectionDescription once per pass, and at the end of the pass
517 // assignAddresses() will recalculate all the OutSecOff values.
518 std::vector<InputSection *> Tmp;
519 Tmp.reserve(ISD.Sections.size() + Patches.size());
520 auto MergeCmp = [](const InputSection *A, const InputSection *B) {
521 if (A->OutSecOff < B->OutSecOff)
522 return true;
523 if (A->OutSecOff == B->OutSecOff && isa<Patch843419Section>(A) &&
524 !isa<Patch843419Section>(B))
525 return true;
526 return false;
527 };
528 std::merge(ISD.Sections.begin(), ISD.Sections.end(), Patches.begin(),
529 Patches.end(), std::back_inserter(Tmp), MergeCmp);
530 ISD.Sections = std::move(Tmp);
531}
532
533// Given an erratum sequence that starts at address AdrpAddr, with an
534// instruction that we need to patch at PatcheeOffset from the start of
535// InputSection IS, create a Patch843419 Section and add it to the
536// Patches that we need to insert.
537static void implementPatch(uint64_t AdrpAddr, uint64_t PatcheeOffset,
538 InputSection *IS,
539 std::vector<Patch843419Section *> &Patches) {
540 // There may be a relocation at the same offset that we are patching. There
541 // are three cases that we need to consider.
542 // Case 1: R_AARCH64_JUMP26 branch relocation. We have already patched this
543 // instance of the erratum on a previous patch and altered the relocation. We
544 // have nothing more to do.
545 // Case 2: A load/store register (unsigned immediate) class relocation. There
546 // are two of these R_AARCH_LD64_ABS_LO12_NC and R_AARCH_LD64_GOT_LO12_NC and
547 // they are both absolute. We need to add the same relocation to the patch,
548 // and replace the relocation with a R_AARCH_JUMP26 branch relocation.
549 // Case 3: No relocation. We must create a new R_AARCH64_JUMP26 branch
550 // relocation at the offset.
551 auto RelIt = std::find_if(
552 IS->Relocations.begin(), IS->Relocations.end(),
553 [=](const Relocation &R) { return R.Offset == PatcheeOffset; });
554 if (RelIt != IS->Relocations.end() && RelIt->Type == R_AARCH64_JUMP26)
555 return;
556
557 if (Config->Verbose)
558 message("detected cortex-a53-843419 erratum sequence starting at " +
559 utohexstr(AdrpAddr) + " in unpatched output.");
560
561 auto *PS = make<Patch843419Section>(IS, PatcheeOffset);
562 Patches.push_back(PS);
563
564 auto MakeRelToPatch = [](uint64_t Offset, Symbol *PatchSym) {
565 return Relocation{R_PC, R_AARCH64_JUMP26, Offset, 0, PatchSym};
566 };
567
568 if (RelIt != IS->Relocations.end()) {
569 PS->Relocations.push_back(
570 {RelIt->Expr, RelIt->Type, 0, RelIt->Addend, RelIt->Sym});
571 *RelIt = MakeRelToPatch(PatcheeOffset, PS->PatchSym);
572 } else
573 IS->Relocations.push_back(MakeRelToPatch(PatcheeOffset, PS->PatchSym));
574}
575
576// Scan all the instructions in InputSectionDescription, for each instance of
577// the erratum sequence create a Patch843419Section. We return the list of
578// Patch843419Sections that need to be applied to ISD.
579std::vector<Patch843419Section *>
580AArch64Err843419Patcher::patchInputSectionDescription(
581 InputSectionDescription &ISD) {
582 std::vector<Patch843419Section *> Patches;
583 for (InputSection *IS : ISD.Sections) {
584 // LLD doesn't use the erratum sequence in SyntheticSections.
585 if (isa<SyntheticSection>(IS))
586 continue;
587 // Use SectionMap to make sure we only scan code and not inline data.
588 // We have already sorted MapSyms in ascending order and removed consecutive
589 // mapping symbols of the same type. Our range of executable instructions to
590 // scan is therefore [CodeSym->Value, DataSym->Value) or [CodeSym->Value,
591 // section size).
592 std::vector<const Defined *> &MapSyms = SectionMap[IS];
593
594 auto CodeSym = llvm::find_if(MapSyms, [&](const Defined *MS) {
595 return MS->getName().startswith("$x");
596 });
597
598 while (CodeSym != MapSyms.end()) {
599 auto DataSym = std::next(CodeSym);
600 uint64_t Off = (*CodeSym)->Value;
601 uint64_t Limit =
602 (DataSym == MapSyms.end()) ? IS->Data.size() : (*DataSym)->Value;
603
604 while (Off < Limit) {
605 uint64_t StartAddr = IS->getParent()->Addr + IS->OutSecOff + Off;
606 if (uint64_t PatcheeOffset = scanCortexA53Errata843419(IS, Off, Limit))
607 implementPatch(StartAddr, PatcheeOffset, IS, Patches);
608 }
609 if (DataSym == MapSyms.end())
610 break;
611 CodeSym = std::next(DataSym);
612 }
613 }
614 return Patches;
615}
616
617// For each InputSectionDescription make one pass over the executable sections
618// looking for the erratum sequence; creating a synthetic Patch843419Section
619// for each instance found. We insert these synthetic patch sections after the
620// executable code in each InputSectionDescription.
621//
622// PreConditions:
623// The Output and Input Sections have had their final addresses assigned.
624//
625// PostConditions:
626// Returns true if at least one patch was added. The addresses of the
627// Ouptut and Input Sections may have been changed.
628// Returns false if no patches were required and no changes were made.
629bool AArch64Err843419Patcher::createFixes() {
630 if (Initialized == false)
631 init();
632
633 bool AddressesChanged = false;
634 for (OutputSection *OS : OutputSections) {
635 if (!(OS->Flags & SHF_ALLOC) || !(OS->Flags & SHF_EXECINSTR))
636 continue;
637 for (BaseCommand *BC : OS->SectionCommands)
638 if (auto *ISD = dyn_cast<InputSectionDescription>(BC)) {
639 std::vector<Patch843419Section *> Patches =
640 patchInputSectionDescription(*ISD);
641 if (!Patches.empty()) {
642 insertPatches(*ISD, Patches);
643 AddressesChanged = true;
644 }
645 }
646 }
647 return AddressesChanged;
648}
deps/lld/ELF/AArch64ErrataFix.h created+52
...@@ -0,0 +1,52 @@
1//===- AArch64ErrataFix.h ---------------------------------------*- C++ -*-===//
2//
3// The LLVM Linker
4//
5// This file is distributed under the University of Illinois Open Source
6// License. See LICENSE.TXT for details.
7//
8//===----------------------------------------------------------------------===//
9
10#ifndef LLD_ELF_AARCH64ERRATAFIX_H
11#define LLD_ELF_AARCH64ERRATAFIX_H
12
13#include "lld/Common/LLVM.h"
14
15#include <map>
16#include <vector>
17
18namespace lld {
19namespace elf {
20
21class Defined;
22class InputSection;
23struct InputSectionDescription;
24class OutputSection;
25class Patch843419Section;
26
27class AArch64Err843419Patcher {
28public:
29 // return true if Patches have been added to the OutputSections.
30 bool createFixes();
31
32private:
33 std::vector<Patch843419Section *>
34 patchInputSectionDescription(InputSectionDescription &ISD);
35
36 void insertPatches(InputSectionDescription &ISD,
37 std::vector<Patch843419Section *> &Patches);
38
39 void init();
40
41 // A cache of the mapping symbols defined by the InputSecion sorted in order
42 // of ascending value with redundant symbols removed. These describe
43 // the ranges of code and data in an executable InputSection.
44 std::map<InputSection *, std::vector<const Defined *>> SectionMap;
45
46 bool Initialized = false;
47};
48
49} // namespace elf
50} // namespace lld
51
52#endif
deps/lld/ELF/Arch/AArch64.cpp+72-22
...@@ -7,11 +7,11 @@...@@ -7,11 +7,11 @@
7//7//
8//===----------------------------------------------------------------------===//8//===----------------------------------------------------------------------===//
99
10#include "Error.h"
11#include "Symbols.h"10#include "Symbols.h"
12#include "SyntheticSections.h"11#include "SyntheticSections.h"
13#include "Target.h"12#include "Target.h"
14#include "Thunks.h"13#include "Thunks.h"
14#include "lld/Common/ErrorHandler.h"
15#include "llvm/Object/ELF.h"15#include "llvm/Object/ELF.h"
16#include "llvm/Support/Endian.h"16#include "llvm/Support/Endian.h"
1717
...@@ -32,20 +32,23 @@ namespace {...@@ -32,20 +32,23 @@ namespace {
32class AArch64 final : public TargetInfo {32class AArch64 final : public TargetInfo {
33public:33public:
34 AArch64();34 AArch64();
35 RelExpr getRelExpr(uint32_t Type, const SymbolBody &S,35 RelExpr getRelExpr(RelType Type, const Symbol &S,
36 const uint8_t *Loc) const override;36 const uint8_t *Loc) const override;
37 bool isPicRel(uint32_t Type) const override;37 bool isPicRel(RelType Type) const override;
38 void writeGotPlt(uint8_t *Buf, const SymbolBody &S) const override;38 void writeGotPlt(uint8_t *Buf, const Symbol &S) const override;
39 void writePltHeader(uint8_t *Buf) const override;39 void writePltHeader(uint8_t *Buf) const override;
40 void writePlt(uint8_t *Buf, uint64_t GotPltEntryAddr, uint64_t PltEntryAddr,40 void writePlt(uint8_t *Buf, uint64_t GotPltEntryAddr, uint64_t PltEntryAddr,
41 int32_t Index, unsigned RelOff) const override;41 int32_t Index, unsigned RelOff) const override;
42 bool usesOnlyLowPageBits(uint32_t Type) const override;42 bool needsThunk(RelExpr Expr, RelType Type, const InputFile *File,
43 void relocateOne(uint8_t *Loc, uint32_t Type, uint64_t Val) const override;43 uint64_t BranchAddr, const Symbol &S) const override;
44 RelExpr adjustRelaxExpr(uint32_t Type, const uint8_t *Data,44 bool inBranchRange(RelType Type, uint64_t Src, uint64_t Dst) const override;
45 bool usesOnlyLowPageBits(RelType Type) const override;
46 void relocateOne(uint8_t *Loc, RelType Type, uint64_t Val) const override;
47 RelExpr adjustRelaxExpr(RelType Type, const uint8_t *Data,
45 RelExpr Expr) const override;48 RelExpr Expr) const override;
46 void relaxTlsGdToLe(uint8_t *Loc, uint32_t Type, uint64_t Val) const override;49 void relaxTlsGdToLe(uint8_t *Loc, RelType Type, uint64_t Val) const override;
47 void relaxTlsGdToIe(uint8_t *Loc, uint32_t Type, uint64_t Val) const override;50 void relaxTlsGdToIe(uint8_t *Loc, RelType Type, uint64_t Val) const override;
48 void relaxTlsIeToLe(uint8_t *Loc, uint32_t Type, uint64_t Val) const override;51 void relaxTlsIeToLe(uint8_t *Loc, RelType Type, uint64_t Val) const override;
49};52};
50} // namespace53} // namespace
5154
...@@ -66,13 +69,17 @@ AArch64::AArch64() {...@@ -66,13 +69,17 @@ AArch64::AArch64() {
66 // It doesn't seem to be documented anywhere, but tls on aarch64 uses variant69 // It doesn't seem to be documented anywhere, but tls on aarch64 uses variant
67 // 1 of the tls structures and the tcb size is 16.70 // 1 of the tls structures and the tcb size is 16.
68 TcbSize = 16;71 TcbSize = 16;
72 NeedsThunks = true;
73
74 // See comment in Arch/ARM.cpp for a more detailed explanation of
75 // ThunkSectionSpacing. For AArch64 the only branches we are permitted to
76 // Thunk have a range of +/- 128 MiB
77 ThunkSectionSpacing = (128 * 1024 * 1024) - 0x30000;
69}78}
7079
71RelExpr AArch64::getRelExpr(uint32_t Type, const SymbolBody &S,80RelExpr AArch64::getRelExpr(RelType Type, const Symbol &S,
72 const uint8_t *Loc) const {81 const uint8_t *Loc) const {
73 switch (Type) {82 switch (Type) {
74 default:
75 return R_ABS;
76 case R_AARCH64_TLSDESC_ADR_PAGE21:83 case R_AARCH64_TLSDESC_ADR_PAGE21:
77 return R_TLSDESC_PAGE;84 return R_TLSDESC_PAGE;
78 case R_AARCH64_TLSDESC_LD64_LO12:85 case R_AARCH64_TLSDESC_LD64_LO12:
...@@ -92,6 +99,7 @@ RelExpr AArch64::getRelExpr(uint32_t Type, const SymbolBody &S,...@@ -92,6 +99,7 @@ RelExpr AArch64::getRelExpr(uint32_t Type, const SymbolBody &S,
92 case R_AARCH64_PREL32:99 case R_AARCH64_PREL32:
93 case R_AARCH64_PREL64:100 case R_AARCH64_PREL64:
94 case R_AARCH64_ADR_PREL_LO21:101 case R_AARCH64_ADR_PREL_LO21:
102 case R_AARCH64_LD_PREL_LO19:
95 return R_PC;103 return R_PC;
96 case R_AARCH64_ADR_PREL_PG_HI21:104 case R_AARCH64_ADR_PREL_PG_HI21:
97 return R_PAGE_PC;105 return R_PAGE_PC;
...@@ -103,10 +111,12 @@ RelExpr AArch64::getRelExpr(uint32_t Type, const SymbolBody &S,...@@ -103,10 +111,12 @@ RelExpr AArch64::getRelExpr(uint32_t Type, const SymbolBody &S,
103 return R_GOT_PAGE_PC;111 return R_GOT_PAGE_PC;
104 case R_AARCH64_NONE:112 case R_AARCH64_NONE:
105 return R_NONE;113 return R_NONE;
114 default:
115 return R_ABS;
106 }116 }
107}117}
108118
109RelExpr AArch64::adjustRelaxExpr(uint32_t Type, const uint8_t *Data,119RelExpr AArch64::adjustRelaxExpr(RelType Type, const uint8_t *Data,
110 RelExpr Expr) const {120 RelExpr Expr) const {
111 if (Expr == R_RELAX_TLS_GD_TO_IE) {121 if (Expr == R_RELAX_TLS_GD_TO_IE) {
112 if (Type == R_AARCH64_TLSDESC_ADR_PAGE21)122 if (Type == R_AARCH64_TLSDESC_ADR_PAGE21)
...@@ -116,7 +126,7 @@ RelExpr AArch64::adjustRelaxExpr(uint32_t Type, const uint8_t *Data,...@@ -116,7 +126,7 @@ RelExpr AArch64::adjustRelaxExpr(uint32_t Type, const uint8_t *Data,
116 return Expr;126 return Expr;
117}127}
118128
119bool AArch64::usesOnlyLowPageBits(uint32_t Type) const {129bool AArch64::usesOnlyLowPageBits(RelType Type) const {
120 switch (Type) {130 switch (Type) {
121 default:131 default:
122 return false;132 return false;
...@@ -134,11 +144,11 @@ bool AArch64::usesOnlyLowPageBits(uint32_t Type) const {...@@ -134,11 +144,11 @@ bool AArch64::usesOnlyLowPageBits(uint32_t Type) const {
134 }144 }
135}145}
136146
137bool AArch64::isPicRel(uint32_t Type) const {147bool AArch64::isPicRel(RelType Type) const {
138 return Type == R_AARCH64_ABS32 || Type == R_AARCH64_ABS64;148 return Type == R_AARCH64_ABS32 || Type == R_AARCH64_ABS64;
139}149}
140150
141void AArch64::writeGotPlt(uint8_t *Buf, const SymbolBody &) const {151void AArch64::writeGotPlt(uint8_t *Buf, const Symbol &) const {
142 write64le(Buf, InX::Plt->getVA());152 write64le(Buf, InX::Plt->getVA());
143}153}
144154
...@@ -180,6 +190,31 @@ void AArch64::writePlt(uint8_t *Buf, uint64_t GotPltEntryAddr,...@@ -180,6 +190,31 @@ void AArch64::writePlt(uint8_t *Buf, uint64_t GotPltEntryAddr,
180 relocateOne(Buf + 8, R_AARCH64_ADD_ABS_LO12_NC, GotPltEntryAddr);190 relocateOne(Buf + 8, R_AARCH64_ADD_ABS_LO12_NC, GotPltEntryAddr);
181}191}
182192
193bool AArch64::needsThunk(RelExpr Expr, RelType Type, const InputFile *File,
194 uint64_t BranchAddr, const Symbol &S) const {
195 // ELF for the ARM 64-bit architecture, section Call and Jump relocations
196 // only permits range extension thunks for R_AARCH64_CALL26 and
197 // R_AARCH64_JUMP26 relocation types.
198 if (Type != R_AARCH64_CALL26 && Type != R_AARCH64_JUMP26)
199 return false;
200 uint64_t Dst = (Expr == R_PLT_PC) ? S.getPltVA() : S.getVA();
201 return !inBranchRange(Type, BranchAddr, Dst);
202}
203
204bool AArch64::inBranchRange(RelType Type, uint64_t Src, uint64_t Dst) const {
205 if (Type != R_AARCH64_CALL26 && Type != R_AARCH64_JUMP26)
206 return true;
207 // The AArch64 call and unconditional branch instructions have a range of
208 // +/- 128 MiB.
209 uint64_t Range = 128 * 1024 * 1024;
210 if (Dst > Src) {
211 // Immediate of branch is signed.
212 Range -= 4;
213 return Dst - Src <= Range;
214 }
215 return Src - Dst <= Range;
216}
217
183static void write32AArch64Addr(uint8_t *L, uint64_t Imm) {218static void write32AArch64Addr(uint8_t *L, uint64_t Imm) {
184 uint32_t ImmLo = (Imm & 0x3) << 29;219 uint32_t ImmLo = (Imm & 0x3) << 29;
185 uint32_t ImmHi = (Imm & 0x1FFFFC) << 3;220 uint32_t ImmHi = (Imm & 0x1FFFFC) << 3;
...@@ -201,7 +236,7 @@ static void or32AArch64Imm(uint8_t *L, uint64_t Imm) {...@@ -201,7 +236,7 @@ static void or32AArch64Imm(uint8_t *L, uint64_t Imm) {
201 or32le(L, (Imm & 0xFFF) << 10);236 or32le(L, (Imm & 0xFFF) << 10);
202}237}
203238
204void AArch64::relocateOne(uint8_t *Loc, uint32_t Type, uint64_t Val) const {239void AArch64::relocateOne(uint8_t *Loc, RelType Type, uint64_t Val) const {
205 switch (Type) {240 switch (Type) {
206 case R_AARCH64_ABS16:241 case R_AARCH64_ABS16:
207 case R_AARCH64_PREL16:242 case R_AARCH64_PREL16:
...@@ -232,12 +267,23 @@ void AArch64::relocateOne(uint8_t *Loc, uint32_t Type, uint64_t Val) const {...@@ -232,12 +267,23 @@ void AArch64::relocateOne(uint8_t *Loc, uint32_t Type, uint64_t Val) const {
232 checkInt<21>(Loc, Val, Type);267 checkInt<21>(Loc, Val, Type);
233 write32AArch64Addr(Loc, Val);268 write32AArch64Addr(Loc, Val);
234 break;269 break;
235 case R_AARCH64_CALL26:
236 case R_AARCH64_JUMP26:270 case R_AARCH64_JUMP26:
271 // Normally we would just write the bits of the immediate field, however
272 // when patching instructions for the cpu errata fix -fix-cortex-a53-843419
273 // we want to replace a non-branch instruction with a branch immediate
274 // instruction. By writing all the bits of the instruction including the
275 // opcode and the immediate (0 001 | 01 imm26) we can do this
276 // transformation by placing a R_AARCH64_JUMP26 relocation at the offset of
277 // the instruction we want to patch.
278 write32le(Loc, 0x14000000);
279 LLVM_FALLTHROUGH;
280 case R_AARCH64_CALL26:
237 checkInt<28>(Loc, Val, Type);281 checkInt<28>(Loc, Val, Type);
238 or32le(Loc, (Val & 0x0FFFFFFC) >> 2);282 or32le(Loc, (Val & 0x0FFFFFFC) >> 2);
239 break;283 break;
240 case R_AARCH64_CONDBR19:284 case R_AARCH64_CONDBR19:
285 case R_AARCH64_LD_PREL_LO19:
286 checkAlignment<4>(Loc, Val, Type);
241 checkInt<21>(Loc, Val, Type);287 checkInt<21>(Loc, Val, Type);
242 or32le(Loc, (Val & 0x1FFFFC) << 3);288 or32le(Loc, (Val & 0x1FFFFC) << 3);
243 break;289 break;
...@@ -251,15 +297,19 @@ void AArch64::relocateOne(uint8_t *Loc, uint32_t Type, uint64_t Val) const {...@@ -251,15 +297,19 @@ void AArch64::relocateOne(uint8_t *Loc, uint32_t Type, uint64_t Val) const {
251 or32AArch64Imm(Loc, getBits(Val, 0, 11));297 or32AArch64Imm(Loc, getBits(Val, 0, 11));
252 break;298 break;
253 case R_AARCH64_LDST16_ABS_LO12_NC:299 case R_AARCH64_LDST16_ABS_LO12_NC:
300 checkAlignment<2>(Loc, Val, Type);
254 or32AArch64Imm(Loc, getBits(Val, 1, 11));301 or32AArch64Imm(Loc, getBits(Val, 1, 11));
255 break;302 break;
256 case R_AARCH64_LDST32_ABS_LO12_NC:303 case R_AARCH64_LDST32_ABS_LO12_NC:
304 checkAlignment<4>(Loc, Val, Type);
257 or32AArch64Imm(Loc, getBits(Val, 2, 11));305 or32AArch64Imm(Loc, getBits(Val, 2, 11));
258 break;306 break;
259 case R_AARCH64_LDST64_ABS_LO12_NC:307 case R_AARCH64_LDST64_ABS_LO12_NC:
308 checkAlignment<8>(Loc, Val, Type);
260 or32AArch64Imm(Loc, getBits(Val, 3, 11));309 or32AArch64Imm(Loc, getBits(Val, 3, 11));
261 break;310 break;
262 case R_AARCH64_LDST128_ABS_LO12_NC:311 case R_AARCH64_LDST128_ABS_LO12_NC:
312 checkAlignment<16>(Loc, Val, Type);
263 or32AArch64Imm(Loc, getBits(Val, 4, 11));313 or32AArch64Imm(Loc, getBits(Val, 4, 11));
264 break;314 break;
265 case R_AARCH64_MOVW_UABS_G0_NC:315 case R_AARCH64_MOVW_UABS_G0_NC:
...@@ -291,7 +341,7 @@ void AArch64::relocateOne(uint8_t *Loc, uint32_t Type, uint64_t Val) const {...@@ -291,7 +341,7 @@ void AArch64::relocateOne(uint8_t *Loc, uint32_t Type, uint64_t Val) const {
291 }341 }
292}342}
293343
294void AArch64::relaxTlsGdToLe(uint8_t *Loc, uint32_t Type, uint64_t Val) const {344void AArch64::relaxTlsGdToLe(uint8_t *Loc, RelType Type, uint64_t Val) const {
295 // TLSDESC Global-Dynamic relocation are in the form:345 // TLSDESC Global-Dynamic relocation are in the form:
296 // adrp x0, :tlsdesc:v [R_AARCH64_TLSDESC_ADR_PAGE21]346 // adrp x0, :tlsdesc:v [R_AARCH64_TLSDESC_ADR_PAGE21]
297 // ldr x1, [x0, #:tlsdesc_lo12:v [R_AARCH64_TLSDESC_LD64_LO12]347 // ldr x1, [x0, #:tlsdesc_lo12:v [R_AARCH64_TLSDESC_LD64_LO12]
...@@ -321,7 +371,7 @@ void AArch64::relaxTlsGdToLe(uint8_t *Loc, uint32_t Type, uint64_t Val) const {...@@ -321,7 +371,7 @@ void AArch64::relaxTlsGdToLe(uint8_t *Loc, uint32_t Type, uint64_t Val) const {
321 }371 }
322}372}
323373
324void AArch64::relaxTlsGdToIe(uint8_t *Loc, uint32_t Type, uint64_t Val) const {374void AArch64::relaxTlsGdToIe(uint8_t *Loc, RelType Type, uint64_t Val) const {
325 // TLSDESC Global-Dynamic relocation are in the form:375 // TLSDESC Global-Dynamic relocation are in the form:
326 // adrp x0, :tlsdesc:v [R_AARCH64_TLSDESC_ADR_PAGE21]376 // adrp x0, :tlsdesc:v [R_AARCH64_TLSDESC_ADR_PAGE21]
327 // ldr x1, [x0, #:tlsdesc_lo12:v [R_AARCH64_TLSDESC_LD64_LO12]377 // ldr x1, [x0, #:tlsdesc_lo12:v [R_AARCH64_TLSDESC_LD64_LO12]
...@@ -352,7 +402,7 @@ void AArch64::relaxTlsGdToIe(uint8_t *Loc, uint32_t Type, uint64_t Val) const {...@@ -352,7 +402,7 @@ void AArch64::relaxTlsGdToIe(uint8_t *Loc, uint32_t Type, uint64_t Val) const {
352 }402 }
353}403}
354404
355void AArch64::relaxTlsIeToLe(uint8_t *Loc, uint32_t Type, uint64_t Val) const {405void AArch64::relaxTlsIeToLe(uint8_t *Loc, RelType Type, uint64_t Val) const {
356 checkUInt<32>(Loc, Val, Type);406 checkUInt<32>(Loc, Val, Type);
357407
358 if (Type == R_AARCH64_TLSIE_ADR_GOTTPREL_PAGE21) {408 if (Type == R_AARCH64_TLSIE_ADR_GOTTPREL_PAGE21) {
deps/lld/ELF/Arch/AMDGPU.cpp+26-8
...@@ -7,10 +7,10 @@...@@ -7,10 +7,10 @@
7//7//
8//===----------------------------------------------------------------------===//8//===----------------------------------------------------------------------===//
99
10#include "Error.h"
11#include "InputFiles.h"10#include "InputFiles.h"
12#include "Symbols.h"11#include "Symbols.h"
13#include "Target.h"12#include "Target.h"
13#include "lld/Common/ErrorHandler.h"
14#include "llvm/Object/ELF.h"14#include "llvm/Object/ELF.h"
15#include "llvm/Support/Endian.h"15#include "llvm/Support/Endian.h"
1616
...@@ -25,19 +25,38 @@ namespace {...@@ -25,19 +25,38 @@ namespace {
25class AMDGPU final : public TargetInfo {25class AMDGPU final : public TargetInfo {
26public:26public:
27 AMDGPU();27 AMDGPU();
28 void relocateOne(uint8_t *Loc, uint32_t Type, uint64_t Val) const override;28 uint32_t calcEFlags() const override;
29 RelExpr getRelExpr(uint32_t Type, const SymbolBody &S,29 void relocateOne(uint8_t *Loc, RelType Type, uint64_t Val) const override;
30 RelExpr getRelExpr(RelType Type, const Symbol &S,
30 const uint8_t *Loc) const override;31 const uint8_t *Loc) const override;
31};32};
32} // namespace33} // namespace
3334
34AMDGPU::AMDGPU() {35AMDGPU::AMDGPU() {
35 RelativeRel = R_AMDGPU_REL64;36 RelativeRel = R_AMDGPU_RELATIVE64;
36 GotRel = R_AMDGPU_ABS64;37 GotRel = R_AMDGPU_ABS64;
37 GotEntrySize = 8;38 GotEntrySize = 8;
38}39}
3940
40void AMDGPU::relocateOne(uint8_t *Loc, uint32_t Type, uint64_t Val) const {41static uint32_t getEFlags(InputFile *File) {
42 return cast<ObjFile<ELF64LE>>(File)->getObj().getHeader()->e_flags;
43}
44
45uint32_t AMDGPU::calcEFlags() const {
46 assert(!ObjectFiles.empty());
47 uint32_t Ret = getEFlags(ObjectFiles[0]);
48
49 // Verify that all input files have the same e_flags.
50 for (InputFile *F : makeArrayRef(ObjectFiles).slice(1)) {
51 if (Ret == getEFlags(F))
52 continue;
53 error("incompatible e_flags: " + toString(F));
54 return 0;
55 }
56 return Ret;
57}
58
59void AMDGPU::relocateOne(uint8_t *Loc, RelType Type, uint64_t Val) const {
41 switch (Type) {60 switch (Type) {
42 case R_AMDGPU_ABS32:61 case R_AMDGPU_ABS32:
43 case R_AMDGPU_GOTPCREL:62 case R_AMDGPU_GOTPCREL:
...@@ -58,7 +77,7 @@ void AMDGPU::relocateOne(uint8_t *Loc, uint32_t Type, uint64_t Val) const {...@@ -58,7 +77,7 @@ void AMDGPU::relocateOne(uint8_t *Loc, uint32_t Type, uint64_t Val) const {
58 }77 }
59}78}
6079
61RelExpr AMDGPU::getRelExpr(uint32_t Type, const SymbolBody &S,80RelExpr AMDGPU::getRelExpr(RelType Type, const Symbol &S,
62 const uint8_t *Loc) const {81 const uint8_t *Loc) const {
63 switch (Type) {82 switch (Type) {
64 case R_AMDGPU_ABS32:83 case R_AMDGPU_ABS32:
...@@ -73,8 +92,7 @@ RelExpr AMDGPU::getRelExpr(uint32_t Type, const SymbolBody &S,...@@ -73,8 +92,7 @@ RelExpr AMDGPU::getRelExpr(uint32_t Type, const SymbolBody &S,
73 case R_AMDGPU_GOTPCREL32_HI:92 case R_AMDGPU_GOTPCREL32_HI:
74 return R_GOT_PC;93 return R_GOT_PC;
75 default:94 default:
76 error(toString(S.File) + ": unknown relocation type: " + toString(Type));95 return R_INVALID;
77 return R_HINT;
78 }96 }
79}97}
8098
deps/lld/ELF/Arch/ARM.cpp+151-48
...@@ -7,12 +7,12 @@...@@ -7,12 +7,12 @@
7//7//
8//===----------------------------------------------------------------------===//8//===----------------------------------------------------------------------===//
99
10#include "Error.h"
11#include "InputFiles.h"10#include "InputFiles.h"
12#include "Symbols.h"11#include "Symbols.h"
13#include "SyntheticSections.h"12#include "SyntheticSections.h"
14#include "Target.h"13#include "Target.h"
15#include "Thunks.h"14#include "Thunks.h"
15#include "lld/Common/ErrorHandler.h"
16#include "llvm/Object/ELF.h"16#include "llvm/Object/ELF.h"
17#include "llvm/Support/Endian.h"17#include "llvm/Support/Endian.h"
1818
...@@ -26,23 +26,23 @@ namespace {...@@ -26,23 +26,23 @@ namespace {
26class ARM final : public TargetInfo {26class ARM final : public TargetInfo {
27public:27public:
28 ARM();28 ARM();
29 RelExpr getRelExpr(uint32_t Type, const SymbolBody &S,29 uint32_t calcEFlags() const override;
30 RelExpr getRelExpr(RelType Type, const Symbol &S,
30 const uint8_t *Loc) const override;31 const uint8_t *Loc) const override;
31 bool isPicRel(uint32_t Type) const override;32 bool isPicRel(RelType Type) const override;
32 uint32_t getDynRel(uint32_t Type) const override;33 RelType getDynRel(RelType Type) const override;
33 int64_t getImplicitAddend(const uint8_t *Buf, uint32_t Type) const override;34 int64_t getImplicitAddend(const uint8_t *Buf, RelType Type) const override;
34 void writeGotPlt(uint8_t *Buf, const SymbolBody &S) const override;35 void writeGotPlt(uint8_t *Buf, const Symbol &S) const override;
35 void writeIgotPlt(uint8_t *Buf, const SymbolBody &S) const override;36 void writeIgotPlt(uint8_t *Buf, const Symbol &S) const override;
36 void writePltHeader(uint8_t *Buf) const override;37 void writePltHeader(uint8_t *Buf) const override;
37 void writePlt(uint8_t *Buf, uint64_t GotPltEntryAddr, uint64_t PltEntryAddr,38 void writePlt(uint8_t *Buf, uint64_t GotPltEntryAddr, uint64_t PltEntryAddr,
38 int32_t Index, unsigned RelOff) const override;39 int32_t Index, unsigned RelOff) const override;
39 void addPltSymbols(InputSectionBase *IS, uint64_t Off) const override;40 void addPltSymbols(InputSection &IS, uint64_t Off) const override;
40 void addPltHeaderSymbols(InputSectionBase *ISD) const override;41 void addPltHeaderSymbols(InputSection &ISD) const override;
41 bool needsThunk(RelExpr Expr, uint32_t RelocType, const InputFile *File,42 bool needsThunk(RelExpr Expr, RelType Type, const InputFile *File,
42 const SymbolBody &S) const override;43 uint64_t BranchAddr, const Symbol &S) const override;
43 bool inBranchRange(uint32_t RelocType, uint64_t Src,44 bool inBranchRange(RelType Type, uint64_t Src, uint64_t Dst) const override;
44 uint64_t Dst) const override;45 void relocateOne(uint8_t *Loc, RelType Type, uint64_t Val) const override;
45 void relocateOne(uint8_t *Loc, uint32_t Type, uint64_t Val) const override;
46};46};
47} // namespace47} // namespace
4848
...@@ -58,18 +58,54 @@ ARM::ARM() {...@@ -58,18 +58,54 @@ ARM::ARM() {
58 GotEntrySize = 4;58 GotEntrySize = 4;
59 GotPltEntrySize = 4;59 GotPltEntrySize = 4;
60 PltEntrySize = 16;60 PltEntrySize = 16;
61 PltHeaderSize = 20;61 PltHeaderSize = 32;
62 TrapInstr = 0xd4d4d4d4;62 TrapInstr = 0xd4d4d4d4;
63 // ARM uses Variant 1 TLS63 // ARM uses Variant 1 TLS
64 TcbSize = 8;64 TcbSize = 8;
65 NeedsThunks = true;65 NeedsThunks = true;
66
67 // The placing of pre-created ThunkSections is controlled by the
68 // ThunkSectionSpacing parameter. The aim is to place the
69 // ThunkSection such that all branches from the InputSections prior to the
70 // ThunkSection can reach a Thunk placed at the end of the ThunkSection.
71 // Graphically:
72 // | up to ThunkSectionSpacing .text input sections |
73 // | ThunkSection |
74 // | up to ThunkSectionSpacing .text input sections |
75 // | ThunkSection |
76
77 // Pre-created ThunkSections are spaced roughly 16MiB apart on ARM. This is to
78 // match the most common expected case of a Thumb 2 encoded BL, BLX or B.W
79 // ARM B, BL, BLX range +/- 32MiB
80 // Thumb B.W, BL, BLX range +/- 16MiB
81 // Thumb B<cc>.W range +/- 1MiB
82 // If a branch cannot reach a pre-created ThunkSection a new one will be
83 // created so we can handle the rare cases of a Thumb 2 conditional branch.
84 // We intentionally use a lower size for ThunkSectionSpacing than the maximum
85 // branch range so the end of the ThunkSection is more likely to be within
86 // range of the branch instruction that is furthest away. The value we shorten
87 // ThunkSectionSpacing by is set conservatively to allow us to create 16,384
88 // 12 byte Thunks at any offset in a ThunkSection without risk of a branch to
89 // one of the Thunks going out of range.
90
91 // FIXME: lld assumes that the Thumb BL and BLX encoding permits the J1 and
92 // J2 bits to be used to extend the branch range. On earlier Architectures
93 // such as ARMv4, ARMv5 and ARMv6 (except ARMv6T2) the range is +/- 4MiB. If
94 // support for the earlier encodings is added then when they are used the
95 // ThunkSectionSpacing will need lowering.
96 ThunkSectionSpacing = 0x1000000 - 0x30000;
97}
98
99uint32_t ARM::calcEFlags() const {
100 // We don't currently use any features incompatible with EF_ARM_EABI_VER5,
101 // but we don't have any firm guarantees of conformance. Linux AArch64
102 // kernels (as of 2016) require an EABI version to be set.
103 return EF_ARM_EABI_VER5;
66}104}
67105
68RelExpr ARM::getRelExpr(uint32_t Type, const SymbolBody &S,106RelExpr ARM::getRelExpr(RelType Type, const Symbol &S,
69 const uint8_t *Loc) const {107 const uint8_t *Loc) const {
70 switch (Type) {108 switch (Type) {
71 default:
72 return R_ABS;
73 case R_ARM_THM_JUMP11:109 case R_ARM_THM_JUMP11:
74 return R_PC;110 return R_PC;
75 case R_ARM_CALL:111 case R_ARM_CALL:
...@@ -120,15 +156,17 @@ RelExpr ARM::getRelExpr(uint32_t Type, const SymbolBody &S,...@@ -120,15 +156,17 @@ RelExpr ARM::getRelExpr(uint32_t Type, const SymbolBody &S,
120 return R_NONE;156 return R_NONE;
121 case R_ARM_TLS_LE32:157 case R_ARM_TLS_LE32:
122 return R_TLS;158 return R_TLS;
159 default:
160 return R_ABS;
123 }161 }
124}162}
125163
126bool ARM::isPicRel(uint32_t Type) const {164bool ARM::isPicRel(RelType Type) const {
127 return (Type == R_ARM_TARGET1 && !Config->Target1Rel) ||165 return (Type == R_ARM_TARGET1 && !Config->Target1Rel) ||
128 (Type == R_ARM_ABS32);166 (Type == R_ARM_ABS32);
129}167}
130168
131uint32_t ARM::getDynRel(uint32_t Type) const {169RelType ARM::getDynRel(RelType Type) const {
132 if (Type == R_ARM_TARGET1 && !Config->Target1Rel)170 if (Type == R_ARM_TARGET1 && !Config->Target1Rel)
133 return R_ARM_ABS32;171 return R_ARM_ABS32;
134 if (Type == R_ARM_ABS32)172 if (Type == R_ARM_ABS32)
...@@ -137,41 +175,73 @@ uint32_t ARM::getDynRel(uint32_t Type) const {...@@ -137,41 +175,73 @@ uint32_t ARM::getDynRel(uint32_t Type) const {
137 return R_ARM_ABS32;175 return R_ARM_ABS32;
138}176}
139177
140void ARM::writeGotPlt(uint8_t *Buf, const SymbolBody &) const {178void ARM::writeGotPlt(uint8_t *Buf, const Symbol &) const {
141 write32le(Buf, InX::Plt->getVA());179 write32le(Buf, InX::Plt->getVA());
142}180}
143181
144void ARM::writeIgotPlt(uint8_t *Buf, const SymbolBody &S) const {182void ARM::writeIgotPlt(uint8_t *Buf, const Symbol &S) const {
145 // An ARM entry is the address of the ifunc resolver function.183 // An ARM entry is the address of the ifunc resolver function.
146 write32le(Buf, S.getVA());184 write32le(Buf, S.getVA());
147}185}
148186
149void ARM::writePltHeader(uint8_t *Buf) const {187// Long form PLT Header that does not have any restrictions on the displacement
188// of the .plt from the .plt.got.
189static void writePltHeaderLong(uint8_t *Buf) {
150 const uint8_t PltData[] = {190 const uint8_t PltData[] = {
151 0x04, 0xe0, 0x2d, 0xe5, // str lr, [sp,#-4]!191 0x04, 0xe0, 0x2d, 0xe5, // str lr, [sp,#-4]!
152 0x04, 0xe0, 0x9f, 0xe5, // ldr lr, L2192 0x04, 0xe0, 0x9f, 0xe5, // ldr lr, L2
153 0x0e, 0xe0, 0x8f, 0xe0, // L1: add lr, pc, lr193 0x0e, 0xe0, 0x8f, 0xe0, // L1: add lr, pc, lr
154 0x08, 0xf0, 0xbe, 0xe5, // ldr pc, [lr, #8]194 0x08, 0xf0, 0xbe, 0xe5, // ldr pc, [lr, #8]
155 0x00, 0x00, 0x00, 0x00, // L2: .word &(.got.plt) - L1 - 8195 0x00, 0x00, 0x00, 0x00, // L2: .word &(.got.plt) - L1 - 8
156 };196 0xd4, 0xd4, 0xd4, 0xd4, // Pad to 32-byte boundary
197 0xd4, 0xd4, 0xd4, 0xd4, // Pad to 32-byte boundary
198 0xd4, 0xd4, 0xd4, 0xd4};
157 memcpy(Buf, PltData, sizeof(PltData));199 memcpy(Buf, PltData, sizeof(PltData));
158 uint64_t GotPlt = InX::GotPlt->getVA();200 uint64_t GotPlt = InX::GotPlt->getVA();
159 uint64_t L1 = InX::Plt->getVA() + 8;201 uint64_t L1 = InX::Plt->getVA() + 8;
160 write32le(Buf + 16, GotPlt - L1 - 8);202 write32le(Buf + 16, GotPlt - L1 - 8);
161}203}
162204
163void ARM::addPltHeaderSymbols(InputSectionBase *ISD) const {205// The default PLT header requires the .plt.got to be within 128 Mb of the
164 auto *IS = cast<InputSection>(ISD);206// .plt in the positive direction.
207void ARM::writePltHeader(uint8_t *Buf) const {
208 // Use a similar sequence to that in writePlt(), the difference is the calling
209 // conventions mean we use lr instead of ip. The PLT entry is responsible for
210 // saving lr on the stack, the dynamic loader is responsible for reloading
211 // it.
212 const uint32_t PltData[] = {
213 0xe52de004, // L1: str lr, [sp,#-4]!
214 0xe28fe600, // add lr, pc, #0x0NN00000 &(.got.plt - L1 - 4)
215 0xe28eea00, // add lr, lr, #0x000NN000 &(.got.plt - L1 - 4)
216 0xe5bef000, // ldr pc, [lr, #0x00000NNN] &(.got.plt -L1 - 4)
217 };
218
219 uint64_t Offset = InX::GotPlt->getVA() - InX::Plt->getVA() - 4;
220 if (!llvm::isUInt<27>(Offset)) {
221 // We cannot encode the Offset, use the long form.
222 writePltHeaderLong(Buf);
223 return;
224 }
225 write32le(Buf + 0, PltData[0]);
226 write32le(Buf + 4, PltData[1] | ((Offset >> 20) & 0xff));
227 write32le(Buf + 8, PltData[2] | ((Offset >> 12) & 0xff));
228 write32le(Buf + 12, PltData[3] | (Offset & 0xfff));
229 write32le(Buf + 16, TrapInstr); // Pad to 32-byte boundary
230 write32le(Buf + 20, TrapInstr);
231 write32le(Buf + 24, TrapInstr);
232 write32le(Buf + 28, TrapInstr);
233}
234
235void ARM::addPltHeaderSymbols(InputSection &IS) const {
165 addSyntheticLocal("$a", STT_NOTYPE, 0, 0, IS);236 addSyntheticLocal("$a", STT_NOTYPE, 0, 0, IS);
166 addSyntheticLocal("$d", STT_NOTYPE, 16, 0, IS);237 addSyntheticLocal("$d", STT_NOTYPE, 16, 0, IS);
167}238}
168239
169void ARM::writePlt(uint8_t *Buf, uint64_t GotPltEntryAddr,240// Long form PLT entries that do not have any restrictions on the displacement
170 uint64_t PltEntryAddr, int32_t Index,241// of the .plt from the .plt.got.
171 unsigned RelOff) const {242static void writePltLong(uint8_t *Buf, uint64_t GotPltEntryAddr,
172 // FIXME: Using simple code sequence with simple relocations.243 uint64_t PltEntryAddr, int32_t Index,
173 // There is a more optimal sequence but it requires support for the group244 unsigned RelOff) {
174 // relocations. See ELF for the ARM Architecture Appendix A.3
175 const uint8_t PltData[] = {245 const uint8_t PltData[] = {
176 0x04, 0xc0, 0x9f, 0xe5, // ldr ip, L2246 0x04, 0xc0, 0x9f, 0xe5, // ldr ip, L2
177 0x0f, 0xc0, 0x8c, 0xe0, // L1: add ip, ip, pc247 0x0f, 0xc0, 0x8c, 0xe0, // L1: add ip, ip, pc
...@@ -183,24 +253,49 @@ void ARM::writePlt(uint8_t *Buf, uint64_t GotPltEntryAddr,...@@ -183,24 +253,49 @@ void ARM::writePlt(uint8_t *Buf, uint64_t GotPltEntryAddr,
183 write32le(Buf + 12, GotPltEntryAddr - L1 - 8);253 write32le(Buf + 12, GotPltEntryAddr - L1 - 8);
184}254}
185255
186void ARM::addPltSymbols(InputSectionBase *ISD, uint64_t Off) const {256// The default PLT entries require the .plt.got to be within 128 Mb of the
187 auto *IS = cast<InputSection>(ISD);257// .plt in the positive direction.
258void ARM::writePlt(uint8_t *Buf, uint64_t GotPltEntryAddr,
259 uint64_t PltEntryAddr, int32_t Index,
260 unsigned RelOff) const {
261 // The PLT entry is similar to the example given in Appendix A of ELF for
262 // the Arm Architecture. Instead of using the Group Relocations to find the
263 // optimal rotation for the 8-bit immediate used in the add instructions we
264 // hard code the most compact rotations for simplicity. This saves a load
265 // instruction over the long plt sequences.
266 const uint32_t PltData[] = {
267 0xe28fc600, // L1: add ip, pc, #0x0NN00000 Offset(&(.plt.got) - L1 - 8
268 0xe28cca00, // add ip, ip, #0x000NN000 Offset(&(.plt.got) - L1 - 8
269 0xe5bcf000, // ldr pc, [ip, #0x00000NNN] Offset(&(.plt.got) - L1 - 8
270 };
271
272 uint64_t Offset = GotPltEntryAddr - PltEntryAddr - 8;
273 if (!llvm::isUInt<27>(Offset)) {
274 // We cannot encode the Offset, use the long form.
275 writePltLong(Buf, GotPltEntryAddr, PltEntryAddr, Index, RelOff);
276 return;
277 }
278 write32le(Buf + 0, PltData[0] | ((Offset >> 20) & 0xff));
279 write32le(Buf + 4, PltData[1] | ((Offset >> 12) & 0xff));
280 write32le(Buf + 8, PltData[2] | (Offset & 0xfff));
281 write32le(Buf + 12, TrapInstr); // Pad to 16-byte boundary
282}
283
284void ARM::addPltSymbols(InputSection &IS, uint64_t Off) const {
188 addSyntheticLocal("$a", STT_NOTYPE, Off, 0, IS);285 addSyntheticLocal("$a", STT_NOTYPE, Off, 0, IS);
189 addSyntheticLocal("$d", STT_NOTYPE, Off + 12, 0, IS);286 addSyntheticLocal("$d", STT_NOTYPE, Off + 12, 0, IS);
190}287}
191288
192bool ARM::needsThunk(RelExpr Expr, uint32_t RelocType, const InputFile *File,289bool ARM::needsThunk(RelExpr Expr, RelType Type, const InputFile *File,
193 const SymbolBody &S) const {290 uint64_t BranchAddr, const Symbol &S) const {
194 // If S is an undefined weak symbol in an executable we don't need a Thunk.291 // If S is an undefined weak symbol and does not have a PLT entry then it
195 // In a DSO calls to undefined symbols, including weak ones get PLT entries292 // will be resolved as a branch to the next instruction.
196 // which may need a thunk.293 if (S.isUndefWeak() && !S.isInPlt())
197 if (S.isUndefined() && !S.isLocal() && S.symbol()->isWeak() &&
198 !Config->Shared)
199 return false;294 return false;
200 // A state change from ARM to Thumb and vice versa must go through an295 // A state change from ARM to Thumb and vice versa must go through an
201 // interworking thunk if the relocation type is not R_ARM_CALL or296 // interworking thunk if the relocation type is not R_ARM_CALL or
202 // R_ARM_THM_CALL.297 // R_ARM_THM_CALL.
203 switch (RelocType) {298 switch (Type) {
204 case R_ARM_PC24:299 case R_ARM_PC24:
205 case R_ARM_PLT32:300 case R_ARM_PLT32:
206 case R_ARM_JUMP24:301 case R_ARM_JUMP24:
...@@ -208,23 +303,31 @@ bool ARM::needsThunk(RelExpr Expr, uint32_t RelocType, const InputFile *File,...@@ -208,23 +303,31 @@ bool ARM::needsThunk(RelExpr Expr, uint32_t RelocType, const InputFile *File,
208 // Otherwise we need to interwork if Symbol has bit 0 set (Thumb).303 // Otherwise we need to interwork if Symbol has bit 0 set (Thumb).
209 if (Expr == R_PC && ((S.getVA() & 1) == 1))304 if (Expr == R_PC && ((S.getVA() & 1) == 1))
210 return true;305 return true;
211 break;306 LLVM_FALLTHROUGH;
307 case R_ARM_CALL: {
308 uint64_t Dst = (Expr == R_PLT_PC) ? S.getPltVA() : S.getVA();
309 return !inBranchRange(Type, BranchAddr, Dst);
310 }
212 case R_ARM_THM_JUMP19:311 case R_ARM_THM_JUMP19:
213 case R_ARM_THM_JUMP24:312 case R_ARM_THM_JUMP24:
214 // Source is Thumb, all PLT entries are ARM so interworking is required.313 // Source is Thumb, all PLT entries are ARM so interworking is required.
215 // Otherwise we need to interwork if Symbol has bit 0 clear (ARM).314 // Otherwise we need to interwork if Symbol has bit 0 clear (ARM).
216 if (Expr == R_PLT_PC || ((S.getVA() & 1) == 0))315 if (Expr == R_PLT_PC || ((S.getVA() & 1) == 0))
217 return true;316 return true;
218 break;317 LLVM_FALLTHROUGH;
318 case R_ARM_THM_CALL: {
319 uint64_t Dst = (Expr == R_PLT_PC) ? S.getPltVA() : S.getVA();
320 return !inBranchRange(Type, BranchAddr, Dst);
321 }
219 }322 }
220 return false;323 return false;
221}324}
222325
223bool ARM::inBranchRange(uint32_t RelocType, uint64_t Src, uint64_t Dst) const {326bool ARM::inBranchRange(RelType Type, uint64_t Src, uint64_t Dst) const {
224 uint64_t Range;327 uint64_t Range;
225 uint64_t InstrSize;328 uint64_t InstrSize;
226329
227 switch (RelocType) {330 switch (Type) {
228 case R_ARM_PC24:331 case R_ARM_PC24:
229 case R_ARM_PLT32:332 case R_ARM_PLT32:
230 case R_ARM_JUMP24:333 case R_ARM_JUMP24:
...@@ -263,7 +366,7 @@ bool ARM::inBranchRange(uint32_t RelocType, uint64_t Src, uint64_t Dst) const {...@@ -263,7 +366,7 @@ bool ARM::inBranchRange(uint32_t RelocType, uint64_t Src, uint64_t Dst) const {
263 return Distance <= Range;366 return Distance <= Range;
264}367}
265368
266void ARM::relocateOne(uint8_t *Loc, uint32_t Type, uint64_t Val) const {369void ARM::relocateOne(uint8_t *Loc, RelType Type, uint64_t Val) const {
267 switch (Type) {370 switch (Type) {
268 case R_ARM_ABS32:371 case R_ARM_ABS32:
269 case R_ARM_BASE_PREL:372 case R_ARM_BASE_PREL:
...@@ -400,7 +503,7 @@ void ARM::relocateOne(uint8_t *Loc, uint32_t Type, uint64_t Val) const {...@@ -400,7 +503,7 @@ void ARM::relocateOne(uint8_t *Loc, uint32_t Type, uint64_t Val) const {
400 }503 }
401}504}
402505
403int64_t ARM::getImplicitAddend(const uint8_t *Buf, uint32_t Type) const {506int64_t ARM::getImplicitAddend(const uint8_t *Buf, RelType Type) const {
404 switch (Type) {507 switch (Type) {
405 default:508 default:
406 return 0;509 return 0;
deps/lld/ELF/Arch/AVR.cpp+6-12
...@@ -26,10 +26,10 @@...@@ -26,10 +26,10 @@
26//26//
27//===----------------------------------------------------------------------===//27//===----------------------------------------------------------------------===//
2828
29#include "Error.h"
30#include "InputFiles.h"29#include "InputFiles.h"
31#include "Symbols.h"30#include "Symbols.h"
32#include "Target.h"31#include "Target.h"
32#include "lld/Common/ErrorHandler.h"
33#include "llvm/Object/ELF.h"33#include "llvm/Object/ELF.h"
34#include "llvm/Support/Endian.h"34#include "llvm/Support/Endian.h"
3535
...@@ -43,24 +43,18 @@ using namespace lld::elf;...@@ -43,24 +43,18 @@ using namespace lld::elf;
43namespace {43namespace {
44class AVR final : public TargetInfo {44class AVR final : public TargetInfo {
45public:45public:
46 RelExpr getRelExpr(uint32_t Type, const SymbolBody &S,46 RelExpr getRelExpr(RelType Type, const Symbol &S,
47 const uint8_t *Loc) const override;47 const uint8_t *Loc) const override;
48 void relocateOne(uint8_t *Loc, uint32_t Type, uint64_t Val) const override;48 void relocateOne(uint8_t *Loc, RelType Type, uint64_t Val) const override;
49};49};
50} // namespace50} // namespace
5151
52RelExpr AVR::getRelExpr(uint32_t Type, const SymbolBody &S,52RelExpr AVR::getRelExpr(RelType Type, const Symbol &S,
53 const uint8_t *Loc) const {53 const uint8_t *Loc) const {
54 switch (Type) {54 return R_ABS;
55 case R_AVR_CALL:
56 return R_ABS;
57 default:
58 error(toString(S.File) + ": unknown relocation type: " + toString(Type));
59 return R_HINT;
60 }
61}55}
6256
63void AVR::relocateOne(uint8_t *Loc, uint32_t Type, uint64_t Val) const {57void AVR::relocateOne(uint8_t *Loc, RelType Type, uint64_t Val) const {
64 switch (Type) {58 switch (Type) {
65 case R_AVR_CALL: {59 case R_AVR_CALL: {
66 uint16_t Hi = Val >> 17;60 uint16_t Hi = Val >> 17;
deps/lld/ELF/Arch/Mips.cpp+361-102
...@@ -7,13 +7,13 @@...@@ -7,13 +7,13 @@
7//7//
8//===----------------------------------------------------------------------===//8//===----------------------------------------------------------------------===//
99
10#include "Error.h"
11#include "InputFiles.h"10#include "InputFiles.h"
12#include "OutputSections.h"11#include "OutputSections.h"
13#include "Symbols.h"12#include "Symbols.h"
14#include "SyntheticSections.h"13#include "SyntheticSections.h"
15#include "Target.h"14#include "Target.h"
16#include "Thunks.h"15#include "Thunks.h"
16#include "lld/Common/ErrorHandler.h"
17#include "llvm/Object/ELF.h"17#include "llvm/Object/ELF.h"
18#include "llvm/Support/Endian.h"18#include "llvm/Support/Endian.h"
1919
...@@ -28,19 +28,20 @@ namespace {...@@ -28,19 +28,20 @@ namespace {
28template <class ELFT> class MIPS final : public TargetInfo {28template <class ELFT> class MIPS final : public TargetInfo {
29public:29public:
30 MIPS();30 MIPS();
31 RelExpr getRelExpr(uint32_t Type, const SymbolBody &S,31 uint32_t calcEFlags() const override;
32 RelExpr getRelExpr(RelType Type, const Symbol &S,
32 const uint8_t *Loc) const override;33 const uint8_t *Loc) const override;
33 int64_t getImplicitAddend(const uint8_t *Buf, uint32_t Type) const override;34 int64_t getImplicitAddend(const uint8_t *Buf, RelType Type) const override;
34 bool isPicRel(uint32_t Type) const override;35 bool isPicRel(RelType Type) const override;
35 uint32_t getDynRel(uint32_t Type) const override;36 RelType getDynRel(RelType Type) const override;
36 void writeGotPlt(uint8_t *Buf, const SymbolBody &S) const override;37 void writeGotPlt(uint8_t *Buf, const Symbol &S) const override;
37 void writePltHeader(uint8_t *Buf) const override;38 void writePltHeader(uint8_t *Buf) const override;
38 void writePlt(uint8_t *Buf, uint64_t GotPltEntryAddr, uint64_t PltEntryAddr,39 void writePlt(uint8_t *Buf, uint64_t GotPltEntryAddr, uint64_t PltEntryAddr,
39 int32_t Index, unsigned RelOff) const override;40 int32_t Index, unsigned RelOff) const override;
40 bool needsThunk(RelExpr Expr, uint32_t RelocType, const InputFile *File,41 bool needsThunk(RelExpr Expr, RelType Type, const InputFile *File,
41 const SymbolBody &S) const override;42 uint64_t BranchAddr, const Symbol &S) const override;
42 void relocateOne(uint8_t *Loc, uint32_t Type, uint64_t Val) const override;43 void relocateOne(uint8_t *Loc, RelType Type, uint64_t Val) const override;
43 bool usesOnlyLowPageBits(uint32_t Type) const override;44 bool usesOnlyLowPageBits(RelType Type) const override;
44};45};
45} // namespace46} // namespace
4647
...@@ -69,24 +70,39 @@ template <class ELFT> MIPS<ELFT>::MIPS() {...@@ -69,24 +70,39 @@ template <class ELFT> MIPS<ELFT>::MIPS() {
69 }70 }
70}71}
7172
73template <class ELFT> uint32_t MIPS<ELFT>::calcEFlags() const {
74 return calcMipsEFlags<ELFT>();
75}
76
72template <class ELFT>77template <class ELFT>
73RelExpr MIPS<ELFT>::getRelExpr(uint32_t Type, const SymbolBody &S,78RelExpr MIPS<ELFT>::getRelExpr(RelType Type, const Symbol &S,
74 const uint8_t *Loc) const {79 const uint8_t *Loc) const {
75 // See comment in the calculateMipsRelChain.80 // See comment in the calculateMipsRelChain.
76 if (ELFT::Is64Bits || Config->MipsN32Abi)81 if (ELFT::Is64Bits || Config->MipsN32Abi)
77 Type &= 0xff;82 Type &= 0xff;
83
78 switch (Type) {84 switch (Type) {
79 default:
80 return R_ABS;
81 case R_MIPS_JALR:85 case R_MIPS_JALR:
86 case R_MICROMIPS_JALR:
82 return R_HINT;87 return R_HINT;
83 case R_MIPS_GPREL16:88 case R_MIPS_GPREL16:
84 case R_MIPS_GPREL32:89 case R_MIPS_GPREL32:
90 case R_MICROMIPS_GPREL16:
91 case R_MICROMIPS_GPREL7_S2:
85 return R_MIPS_GOTREL;92 return R_MIPS_GOTREL;
86 case R_MIPS_26:93 case R_MIPS_26:
94 case R_MICROMIPS_26_S1:
87 return R_PLT;95 return R_PLT;
96 case R_MICROMIPS_PC26_S1:
97 return R_PLT_PC;
88 case R_MIPS_HI16:98 case R_MIPS_HI16:
89 case R_MIPS_LO16:99 case R_MIPS_LO16:
100 case R_MIPS_HIGHER:
101 case R_MIPS_HIGHEST:
102 case R_MICROMIPS_HI16:
103 case R_MICROMIPS_LO16:
104 case R_MICROMIPS_HIGHER:
105 case R_MICROMIPS_HIGHEST:
90 // R_MIPS_HI16/R_MIPS_LO16 relocations against _gp_disp calculate106 // R_MIPS_HI16/R_MIPS_LO16 relocations against _gp_disp calculate
91 // offset between start of function and 'gp' value which by default107 // offset between start of function and 'gp' value which by default
92 // equal to the start of .got section. In that case we consider these108 // equal to the start of .got section. In that case we consider these
...@@ -96,7 +112,24 @@ RelExpr MIPS<ELFT>::getRelExpr(uint32_t Type, const SymbolBody &S,...@@ -96,7 +112,24 @@ RelExpr MIPS<ELFT>::getRelExpr(uint32_t Type, const SymbolBody &S,
96 if (&S == ElfSym::MipsLocalGp)112 if (&S == ElfSym::MipsLocalGp)
97 return R_MIPS_GOT_GP;113 return R_MIPS_GOT_GP;
98 LLVM_FALLTHROUGH;114 LLVM_FALLTHROUGH;
115 case R_MIPS_32:
116 case R_MIPS_64:
99 case R_MIPS_GOT_OFST:117 case R_MIPS_GOT_OFST:
118 case R_MIPS_SUB:
119 case R_MIPS_TLS_DTPREL_HI16:
120 case R_MIPS_TLS_DTPREL_LO16:
121 case R_MIPS_TLS_DTPREL32:
122 case R_MIPS_TLS_DTPREL64:
123 case R_MIPS_TLS_TPREL_HI16:
124 case R_MIPS_TLS_TPREL_LO16:
125 case R_MIPS_TLS_TPREL32:
126 case R_MIPS_TLS_TPREL64:
127 case R_MICROMIPS_GOT_OFST:
128 case R_MICROMIPS_SUB:
129 case R_MICROMIPS_TLS_DTPREL_HI16:
130 case R_MICROMIPS_TLS_DTPREL_LO16:
131 case R_MICROMIPS_TLS_TPREL_HI16:
132 case R_MICROMIPS_TLS_TPREL_LO16:
100 return R_ABS;133 return R_ABS;
101 case R_MIPS_PC32:134 case R_MIPS_PC32:
102 case R_MIPS_PC16:135 case R_MIPS_PC16:
...@@ -105,111 +138,171 @@ RelExpr MIPS<ELFT>::getRelExpr(uint32_t Type, const SymbolBody &S,...@@ -105,111 +138,171 @@ RelExpr MIPS<ELFT>::getRelExpr(uint32_t Type, const SymbolBody &S,
105 case R_MIPS_PC26_S2:138 case R_MIPS_PC26_S2:
106 case R_MIPS_PCHI16:139 case R_MIPS_PCHI16:
107 case R_MIPS_PCLO16:140 case R_MIPS_PCLO16:
141 case R_MICROMIPS_PC7_S1:
142 case R_MICROMIPS_PC10_S1:
143 case R_MICROMIPS_PC16_S1:
144 case R_MICROMIPS_PC18_S3:
145 case R_MICROMIPS_PC19_S2:
146 case R_MICROMIPS_PC23_S2:
147 case R_MICROMIPS_PC21_S1:
108 return R_PC;148 return R_PC;
109 case R_MIPS_GOT16:149 case R_MIPS_GOT16:
150 case R_MICROMIPS_GOT16:
110 if (S.isLocal())151 if (S.isLocal())
111 return R_MIPS_GOT_LOCAL_PAGE;152 return R_MIPS_GOT_LOCAL_PAGE;
112 LLVM_FALLTHROUGH;153 LLVM_FALLTHROUGH;
113 case R_MIPS_CALL16:154 case R_MIPS_CALL16:
114 case R_MIPS_GOT_DISP:155 case R_MIPS_GOT_DISP:
115 case R_MIPS_TLS_GOTTPREL:156 case R_MIPS_TLS_GOTTPREL:
157 case R_MICROMIPS_CALL16:
158 case R_MICROMIPS_GOT_DISP:
159 case R_MICROMIPS_TLS_GOTTPREL:
116 return R_MIPS_GOT_OFF;160 return R_MIPS_GOT_OFF;
117 case R_MIPS_CALL_HI16:161 case R_MIPS_CALL_HI16:
118 case R_MIPS_CALL_LO16:162 case R_MIPS_CALL_LO16:
119 case R_MIPS_GOT_HI16:163 case R_MIPS_GOT_HI16:
120 case R_MIPS_GOT_LO16:164 case R_MIPS_GOT_LO16:
165 case R_MICROMIPS_CALL_HI16:
166 case R_MICROMIPS_CALL_LO16:
167 case R_MICROMIPS_GOT_HI16:
168 case R_MICROMIPS_GOT_LO16:
121 return R_MIPS_GOT_OFF32;169 return R_MIPS_GOT_OFF32;
122 case R_MIPS_GOT_PAGE:170 case R_MIPS_GOT_PAGE:
171 case R_MICROMIPS_GOT_PAGE:
123 return R_MIPS_GOT_LOCAL_PAGE;172 return R_MIPS_GOT_LOCAL_PAGE;
124 case R_MIPS_TLS_GD:173 case R_MIPS_TLS_GD:
174 case R_MICROMIPS_TLS_GD:
125 return R_MIPS_TLSGD;175 return R_MIPS_TLSGD;
126 case R_MIPS_TLS_LDM:176 case R_MIPS_TLS_LDM:
177 case R_MICROMIPS_TLS_LDM:
127 return R_MIPS_TLSLD;178 return R_MIPS_TLSLD;
179 case R_MIPS_NONE:
180 return R_NONE;
181 default:
182 return R_INVALID;
128 }183 }
129}184}
130185
131template <class ELFT> bool MIPS<ELFT>::isPicRel(uint32_t Type) const {186template <class ELFT> bool MIPS<ELFT>::isPicRel(RelType Type) const {
132 return Type == R_MIPS_32 || Type == R_MIPS_64;187 return Type == R_MIPS_32 || Type == R_MIPS_64;
133}188}
134189
135template <class ELFT> uint32_t MIPS<ELFT>::getDynRel(uint32_t Type) const {190template <class ELFT> RelType MIPS<ELFT>::getDynRel(RelType Type) const {
136 return RelativeRel;191 return RelativeRel;
137}192}
138193
139template <class ELFT>194template <class ELFT>
140void MIPS<ELFT>::writeGotPlt(uint8_t *Buf, const SymbolBody &) const {195void MIPS<ELFT>::writeGotPlt(uint8_t *Buf, const Symbol &) const {
141 write32<ELFT::TargetEndianness>(Buf, InX::Plt->getVA());196 uint64_t VA = InX::Plt->getVA();
142}197 if (isMicroMips())
143198 VA |= 1;
144template <endianness E, uint8_t BSIZE, uint8_t SHIFT>199 write32<ELFT::TargetEndianness>(Buf, VA);
145static int64_t getPcRelocAddend(const uint8_t *Loc) {
146 uint32_t Instr = read32<E>(Loc);
147 uint32_t Mask = 0xffffffff >> (32 - BSIZE);
148 return SignExtend64<BSIZE + SHIFT>((Instr & Mask) << SHIFT);
149}200}
150201
151template <endianness E, uint8_t BSIZE, uint8_t SHIFT>202template <endianness E> static uint32_t readShuffle(const uint8_t *Loc) {
152static void applyMipsPcReloc(uint8_t *Loc, uint32_t Type, uint64_t V) {203 // The major opcode of a microMIPS instruction needs to appear
153 uint32_t Mask = 0xffffffff >> (32 - BSIZE);204 // in the first 16-bit word (lowest address) for efficient hardware
154 uint32_t Instr = read32<E>(Loc);205 // decode so that it knows if the instruction is 16-bit or 32-bit
155 if (SHIFT > 0)206 // as early as possible. To do so, little-endian binaries keep 16-bit
156 checkAlignment<(1 << SHIFT)>(Loc, V, Type);207 // words in a big-endian order. That is why we have to swap these
157 checkInt<BSIZE + SHIFT>(Loc, V, Type);208 // words to get a correct value.
158 write32<E>(Loc, (Instr & ~Mask) | ((V >> SHIFT) & Mask));209 uint32_t V = read32<E>(Loc);
210 if (E == support::little)
211 return (V << 16) | (V >> 16);
212 return V;
159}213}
160214
161template <endianness E> static void writeMipsHi16(uint8_t *Loc, uint64_t V) {215template <endianness E>
216static void writeRelocation(uint8_t *Loc, uint64_t V, uint8_t BitsSize,
217 uint8_t Shift) {
162 uint32_t Instr = read32<E>(Loc);218 uint32_t Instr = read32<E>(Loc);
163 uint16_t Res = ((V + 0x8000) >> 16) & 0xffff;219 uint32_t Mask = 0xffffffff >> (32 - BitsSize);
164 write32<E>(Loc, (Instr & 0xffff0000) | Res);220 uint32_t Data = (Instr & ~Mask) | ((V >> Shift) & Mask);
221 write32<E>(Loc, Data);
165}222}
166223
167template <endianness E> static void writeMipsHigher(uint8_t *Loc, uint64_t V) {224template <endianness E>
168 uint32_t Instr = read32<E>(Loc);225static void writeMicroRelocation32(uint8_t *Loc, uint64_t V, uint8_t BitsSize,
169 uint16_t Res = ((V + 0x80008000) >> 32) & 0xffff;226 uint8_t Shift) {
170 write32<E>(Loc, (Instr & 0xffff0000) | Res);227 // See comments in readShuffle for purpose of this code.
171}228 uint16_t *Words = (uint16_t *)Loc;
229 if (E == support::little)
230 std::swap(Words[0], Words[1]);
172231
173template <endianness E> static void writeMipsHighest(uint8_t *Loc, uint64_t V) {232 writeRelocation<E>(Loc, V, BitsSize, Shift);
174 uint32_t Instr = read32<E>(Loc);
175 uint16_t Res = ((V + 0x800080008000) >> 48) & 0xffff;
176 write32<E>(Loc, (Instr & 0xffff0000) | Res);
177}
178233
179template <endianness E> static void writeMipsLo16(uint8_t *Loc, uint64_t V) {234 if (E == support::little)
180 uint32_t Instr = read32<E>(Loc);235 std::swap(Words[0], Words[1]);
181 write32<E>(Loc, (Instr & 0xffff0000) | (V & 0xffff));
182}236}
183237
184template <class ELFT> static bool isMipsR6() {238template <endianness E>
185 const auto &FirstObj = cast<ELFFileBase<ELFT>>(*Config->FirstElf);239static void writeMicroRelocation16(uint8_t *Loc, uint64_t V, uint8_t BitsSize,
186 uint32_t Arch = FirstObj.getObj().getHeader()->e_flags & EF_MIPS_ARCH;240 uint8_t Shift) {
187 return Arch == EF_MIPS_ARCH_32R6 || Arch == EF_MIPS_ARCH_64R6;241 uint16_t Instr = read16<E>(Loc);
242 uint16_t Mask = 0xffff >> (16 - BitsSize);
243 uint16_t Data = (Instr & ~Mask) | ((V >> Shift) & Mask);
244 write16<E>(Loc, Data);
188}245}
189246
190template <class ELFT> void MIPS<ELFT>::writePltHeader(uint8_t *Buf) const {247template <class ELFT> void MIPS<ELFT>::writePltHeader(uint8_t *Buf) const {
191 const endianness E = ELFT::TargetEndianness;248 const endianness E = ELFT::TargetEndianness;
249 if (isMicroMips()) {
250 uint64_t GotPlt = InX::GotPlt->getVA();
251 uint64_t Plt = InX::Plt->getVA();
252 // Overwrite trap instructions written by Writer::writeTrapInstr.
253 memset(Buf, 0, PltHeaderSize);
254
255 write16<E>(Buf, isMipsR6() ? 0x7860 : 0x7980); // addiupc v1, (GOTPLT) - .
256 write16<E>(Buf + 4, 0xff23); // lw $25, 0($3)
257 write16<E>(Buf + 8, 0x0535); // subu16 $2, $2, $3
258 write16<E>(Buf + 10, 0x2525); // srl16 $2, $2, 2
259 write16<E>(Buf + 12, 0x3302); // addiu $24, $2, -2
260 write16<E>(Buf + 14, 0xfffe);
261 write16<E>(Buf + 16, 0x0dff); // move $15, $31
262 if (isMipsR6()) {
263 write16<E>(Buf + 18, 0x0f83); // move $28, $3
264 write16<E>(Buf + 20, 0x472b); // jalrc $25
265 write16<E>(Buf + 22, 0x0c00); // nop
266 relocateOne(Buf, R_MICROMIPS_PC19_S2, GotPlt - Plt);
267 } else {
268 write16<E>(Buf + 18, 0x45f9); // jalrc $25
269 write16<E>(Buf + 20, 0x0f83); // move $28, $3
270 write16<E>(Buf + 22, 0x0c00); // nop
271 relocateOne(Buf, R_MICROMIPS_PC23_S2, GotPlt - Plt);
272 }
273 return;
274 }
275
192 if (Config->MipsN32Abi) {276 if (Config->MipsN32Abi) {
193 write32<E>(Buf, 0x3c0e0000); // lui $14, %hi(&GOTPLT[0])277 write32<E>(Buf, 0x3c0e0000); // lui $14, %hi(&GOTPLT[0])
194 write32<E>(Buf + 4, 0x8dd90000); // lw $25, %lo(&GOTPLT[0])($14)278 write32<E>(Buf + 4, 0x8dd90000); // lw $25, %lo(&GOTPLT[0])($14)
195 write32<E>(Buf + 8, 0x25ce0000); // addiu $14, $14, %lo(&GOTPLT[0])279 write32<E>(Buf + 8, 0x25ce0000); // addiu $14, $14, %lo(&GOTPLT[0])
196 write32<E>(Buf + 12, 0x030ec023); // subu $24, $24, $14280 write32<E>(Buf + 12, 0x030ec023); // subu $24, $24, $14
281 write32<E>(Buf + 16, 0x03e07825); // move $15, $31
282 write32<E>(Buf + 20, 0x0018c082); // srl $24, $24, 2
283 } else if (ELFT::Is64Bits) {
284 write32<E>(Buf, 0x3c0e0000); // lui $14, %hi(&GOTPLT[0])
285 write32<E>(Buf + 4, 0xddd90000); // ld $25, %lo(&GOTPLT[0])($14)
286 write32<E>(Buf + 8, 0x25ce0000); // addiu $14, $14, %lo(&GOTPLT[0])
287 write32<E>(Buf + 12, 0x030ec023); // subu $24, $24, $14
288 write32<E>(Buf + 16, 0x03e07825); // move $15, $31
289 write32<E>(Buf + 20, 0x0018c0c2); // srl $24, $24, 3
197 } else {290 } else {
198 write32<E>(Buf, 0x3c1c0000); // lui $28, %hi(&GOTPLT[0])291 write32<E>(Buf, 0x3c1c0000); // lui $28, %hi(&GOTPLT[0])
199 write32<E>(Buf + 4, 0x8f990000); // lw $25, %lo(&GOTPLT[0])($28)292 write32<E>(Buf + 4, 0x8f990000); // lw $25, %lo(&GOTPLT[0])($28)
200 write32<E>(Buf + 8, 0x279c0000); // addiu $28, $28, %lo(&GOTPLT[0])293 write32<E>(Buf + 8, 0x279c0000); // addiu $28, $28, %lo(&GOTPLT[0])
201 write32<E>(Buf + 12, 0x031cc023); // subu $24, $24, $28294 write32<E>(Buf + 12, 0x031cc023); // subu $24, $24, $28
295 write32<E>(Buf + 16, 0x03e07825); // move $15, $31
296 write32<E>(Buf + 20, 0x0018c082); // srl $24, $24, 2
202 }297 }
203298
204 write32<E>(Buf + 16, 0x03e07825); // move $15, $31
205 write32<E>(Buf + 20, 0x0018c082); // srl $24, $24, 2
206 write32<E>(Buf + 24, 0x0320f809); // jalr $25299 write32<E>(Buf + 24, 0x0320f809); // jalr $25
207 write32<E>(Buf + 28, 0x2718fffe); // subu $24, $24, 2300 write32<E>(Buf + 28, 0x2718fffe); // subu $24, $24, 2
208301
209 uint64_t GotPlt = InX::GotPlt->getVA();302 uint64_t GotPlt = InX::GotPlt->getVA();
210 writeMipsHi16<E>(Buf, GotPlt);303 writeRelocation<E>(Buf, GotPlt + 0x8000, 16, 16);
211 writeMipsLo16<E>(Buf + 4, GotPlt);304 writeRelocation<E>(Buf + 4, GotPlt, 16, 0);
212 writeMipsLo16<E>(Buf + 8, GotPlt);305 writeRelocation<E>(Buf + 8, GotPlt, 16, 0);
213}306}
214307
215template <class ELFT>308template <class ELFT>
...@@ -217,25 +310,45 @@ void MIPS<ELFT>::writePlt(uint8_t *Buf, uint64_t GotPltEntryAddr,...@@ -217,25 +310,45 @@ void MIPS<ELFT>::writePlt(uint8_t *Buf, uint64_t GotPltEntryAddr,
217 uint64_t PltEntryAddr, int32_t Index,310 uint64_t PltEntryAddr, int32_t Index,
218 unsigned RelOff) const {311 unsigned RelOff) const {
219 const endianness E = ELFT::TargetEndianness;312 const endianness E = ELFT::TargetEndianness;
313 if (isMicroMips()) {
314 // Overwrite trap instructions written by Writer::writeTrapInstr.
315 memset(Buf, 0, PltEntrySize);
316
317 if (isMipsR6()) {
318 write16<E>(Buf, 0x7840); // addiupc $2, (GOTPLT) - .
319 write16<E>(Buf + 4, 0xff22); // lw $25, 0($2)
320 write16<E>(Buf + 8, 0x0f02); // move $24, $2
321 write16<E>(Buf + 10, 0x4723); // jrc $25 / jr16 $25
322 relocateOne(Buf, R_MICROMIPS_PC19_S2, GotPltEntryAddr - PltEntryAddr);
323 } else {
324 write16<E>(Buf, 0x7900); // addiupc $2, (GOTPLT) - .
325 write16<E>(Buf + 4, 0xff22); // lw $25, 0($2)
326 write16<E>(Buf + 8, 0x4599); // jrc $25 / jr16 $25
327 write16<E>(Buf + 10, 0x0f02); // move $24, $2
328 relocateOne(Buf, R_MICROMIPS_PC23_S2, GotPltEntryAddr - PltEntryAddr);
329 }
330 return;
331 }
332
220 write32<E>(Buf, 0x3c0f0000); // lui $15, %hi(.got.plt entry)333 write32<E>(Buf, 0x3c0f0000); // lui $15, %hi(.got.plt entry)
221 write32<E>(Buf + 4, 0x8df90000); // l[wd] $25, %lo(.got.plt entry)($15)334 write32<E>(Buf + 4, 0x8df90000); // l[wd] $25, %lo(.got.plt entry)($15)
222 // jr $25335 write32<E>(Buf + 8, isMipsR6() ? 0x03200009 : 0x03200008); // jr $25
223 write32<E>(Buf + 8, isMipsR6<ELFT>() ? 0x03200009 : 0x03200008);
224 write32<E>(Buf + 12, 0x25f80000); // addiu $24, $15, %lo(.got.plt entry)336 write32<E>(Buf + 12, 0x25f80000); // addiu $24, $15, %lo(.got.plt entry)
225 writeMipsHi16<E>(Buf, GotPltEntryAddr);337 writeRelocation<E>(Buf, GotPltEntryAddr + 0x8000, 16, 16);
226 writeMipsLo16<E>(Buf + 4, GotPltEntryAddr);338 writeRelocation<E>(Buf + 4, GotPltEntryAddr, 16, 0);
227 writeMipsLo16<E>(Buf + 12, GotPltEntryAddr);339 writeRelocation<E>(Buf + 12, GotPltEntryAddr, 16, 0);
228}340}
229341
230template <class ELFT>342template <class ELFT>
231bool MIPS<ELFT>::needsThunk(RelExpr Expr, uint32_t Type, const InputFile *File,343bool MIPS<ELFT>::needsThunk(RelExpr Expr, RelType Type, const InputFile *File,
232 const SymbolBody &S) const {344 uint64_t BranchAddr, const Symbol &S) const {
233 // Any MIPS PIC code function is invoked with its address in register $t9.345 // Any MIPS PIC code function is invoked with its address in register $t9.
234 // So if we have a branch instruction from non-PIC code to the PIC one346 // So if we have a branch instruction from non-PIC code to the PIC one
235 // we cannot make the jump directly and need to create a small stubs347 // we cannot make the jump directly and need to create a small stubs
236 // to save the target function address.348 // to save the target function address.
237 // See page 3-38 ftp://www.linux-mips.org/pub/linux/mips/doc/ABI/mipsabi.pdf349 // See page 3-38 ftp://www.linux-mips.org/pub/linux/mips/doc/ABI/mipsabi.pdf
238 if (Type != R_MIPS_26)350 if (Type != R_MIPS_26 && Type != R_MICROMIPS_26_S1 &&
351 Type != R_MICROMIPS_PC26_S1)
239 return false;352 return false;
240 auto *F = dyn_cast_or_null<ELFFileBase<ELFT>>(File);353 auto *F = dyn_cast_or_null<ELFFileBase<ELFT>>(File);
241 if (!F)354 if (!F)
...@@ -243,18 +356,16 @@ bool MIPS<ELFT>::needsThunk(RelExpr Expr, uint32_t Type, const InputFile *File,...@@ -243,18 +356,16 @@ bool MIPS<ELFT>::needsThunk(RelExpr Expr, uint32_t Type, const InputFile *File,
243 // If current file has PIC code, LA25 stub is not required.356 // If current file has PIC code, LA25 stub is not required.
244 if (F->getObj().getHeader()->e_flags & EF_MIPS_PIC)357 if (F->getObj().getHeader()->e_flags & EF_MIPS_PIC)
245 return false;358 return false;
246 auto *D = dyn_cast<DefinedRegular>(&S);359 auto *D = dyn_cast<Defined>(&S);
247 // LA25 is required if target file has PIC code360 // LA25 is required if target file has PIC code
248 // or target symbol is a PIC symbol.361 // or target symbol is a PIC symbol.
249 return D && D->isMipsPIC<ELFT>();362 return D && isMipsPIC<ELFT>(D);
250}363}
251364
252template <class ELFT>365template <class ELFT>
253int64_t MIPS<ELFT>::getImplicitAddend(const uint8_t *Buf, uint32_t Type) const {366int64_t MIPS<ELFT>::getImplicitAddend(const uint8_t *Buf, RelType Type) const {
254 const endianness E = ELFT::TargetEndianness;367 const endianness E = ELFT::TargetEndianness;
255 switch (Type) {368 switch (Type) {
256 default:
257 return 0;
258 case R_MIPS_32:369 case R_MIPS_32:
259 case R_MIPS_GPREL32:370 case R_MIPS_GPREL32:
260 case R_MIPS_TLS_DTPREL32:371 case R_MIPS_TLS_DTPREL32:
...@@ -264,7 +375,11 @@ int64_t MIPS<ELFT>::getImplicitAddend(const uint8_t *Buf, uint32_t Type) const {...@@ -264,7 +375,11 @@ int64_t MIPS<ELFT>::getImplicitAddend(const uint8_t *Buf, uint32_t Type) const {
264 // FIXME (simon): If the relocation target symbol is not a PLT entry375 // FIXME (simon): If the relocation target symbol is not a PLT entry
265 // we should use another expression for calculation:376 // we should use another expression for calculation:
266 // ((A << 2) | (P & 0xf0000000)) >> 2377 // ((A << 2) | (P & 0xf0000000)) >> 2
267 return SignExtend64<28>((read32<E>(Buf) & 0x3ffffff) << 2);378 return SignExtend64<28>(read32<E>(Buf) << 2);
379 case R_MIPS_GOT16:
380 case R_MIPS_HI16:
381 case R_MIPS_PCHI16:
382 return SignExtend64<16>(read32<E>(Buf)) << 16;
268 case R_MIPS_GPREL16:383 case R_MIPS_GPREL16:
269 case R_MIPS_LO16:384 case R_MIPS_LO16:
270 case R_MIPS_PCLO16:385 case R_MIPS_PCLO16:
...@@ -273,21 +388,53 @@ int64_t MIPS<ELFT>::getImplicitAddend(const uint8_t *Buf, uint32_t Type) const {...@@ -273,21 +388,53 @@ int64_t MIPS<ELFT>::getImplicitAddend(const uint8_t *Buf, uint32_t Type) const {
273 case R_MIPS_TLS_TPREL_HI16:388 case R_MIPS_TLS_TPREL_HI16:
274 case R_MIPS_TLS_TPREL_LO16:389 case R_MIPS_TLS_TPREL_LO16:
275 return SignExtend64<16>(read32<E>(Buf));390 return SignExtend64<16>(read32<E>(Buf));
391 case R_MICROMIPS_GOT16:
392 case R_MICROMIPS_HI16:
393 return SignExtend64<16>(readShuffle<E>(Buf)) << 16;
394 case R_MICROMIPS_GPREL16:
395 case R_MICROMIPS_LO16:
396 case R_MICROMIPS_TLS_DTPREL_HI16:
397 case R_MICROMIPS_TLS_DTPREL_LO16:
398 case R_MICROMIPS_TLS_TPREL_HI16:
399 case R_MICROMIPS_TLS_TPREL_LO16:
400 return SignExtend64<16>(readShuffle<E>(Buf));
401 case R_MICROMIPS_GPREL7_S2:
402 return SignExtend64<9>(readShuffle<E>(Buf) << 2);
276 case R_MIPS_PC16:403 case R_MIPS_PC16:
277 return getPcRelocAddend<E, 16, 2>(Buf);404 return SignExtend64<18>(read32<E>(Buf) << 2);
278 case R_MIPS_PC19_S2:405 case R_MIPS_PC19_S2:
279 return getPcRelocAddend<E, 19, 2>(Buf);406 return SignExtend64<21>(read32<E>(Buf) << 2);
280 case R_MIPS_PC21_S2:407 case R_MIPS_PC21_S2:
281 return getPcRelocAddend<E, 21, 2>(Buf);408 return SignExtend64<23>(read32<E>(Buf) << 2);
282 case R_MIPS_PC26_S2:409 case R_MIPS_PC26_S2:
283 return getPcRelocAddend<E, 26, 2>(Buf);410 return SignExtend64<28>(read32<E>(Buf) << 2);
284 case R_MIPS_PC32:411 case R_MIPS_PC32:
285 return getPcRelocAddend<E, 32, 0>(Buf);412 return SignExtend64<32>(read32<E>(Buf));
413 case R_MICROMIPS_26_S1:
414 return SignExtend64<27>(readShuffle<E>(Buf) << 1);
415 case R_MICROMIPS_PC7_S1:
416 return SignExtend64<8>(read16<E>(Buf) << 1);
417 case R_MICROMIPS_PC10_S1:
418 return SignExtend64<11>(read16<E>(Buf) << 1);
419 case R_MICROMIPS_PC16_S1:
420 return SignExtend64<17>(readShuffle<E>(Buf) << 1);
421 case R_MICROMIPS_PC18_S3:
422 return SignExtend64<21>(readShuffle<E>(Buf) << 3);
423 case R_MICROMIPS_PC19_S2:
424 return SignExtend64<21>(readShuffle<E>(Buf) << 2);
425 case R_MICROMIPS_PC21_S1:
426 return SignExtend64<22>(readShuffle<E>(Buf) << 1);
427 case R_MICROMIPS_PC23_S2:
428 return SignExtend64<25>(readShuffle<E>(Buf) << 2);
429 case R_MICROMIPS_PC26_S1:
430 return SignExtend64<27>(readShuffle<E>(Buf) << 1);
431 default:
432 return 0;
286 }433 }
287}434}
288435
289static std::pair<uint32_t, uint64_t>436static std::pair<uint32_t, uint64_t>
290calculateMipsRelChain(uint8_t *Loc, uint32_t Type, uint64_t Val) {437calculateMipsRelChain(uint8_t *Loc, RelType Type, uint64_t Val) {
291 // MIPS N64 ABI packs multiple relocations into the single relocation438 // MIPS N64 ABI packs multiple relocations into the single relocation
292 // record. In general, all up to three relocations can have arbitrary439 // record. In general, all up to three relocations can have arbitrary
293 // types. In fact, Clang and GCC uses only a few combinations. For now,440 // types. In fact, Clang and GCC uses only a few combinations. For now,
...@@ -300,32 +447,43 @@ calculateMipsRelChain(uint8_t *Loc, uint32_t Type, uint64_t Val) {...@@ -300,32 +447,43 @@ calculateMipsRelChain(uint8_t *Loc, uint32_t Type, uint64_t Val) {
300 // relocations used to modify result of the first one: extend it to447 // relocations used to modify result of the first one: extend it to
301 // 64-bit, extract high or low part etc. For details, see part 2.9 Relocation448 // 64-bit, extract high or low part etc. For details, see part 2.9 Relocation
302 // at the https://dmz-portal.mips.com/mw/images/8/82/007-4658-001.pdf449 // at the https://dmz-portal.mips.com/mw/images/8/82/007-4658-001.pdf
303 uint32_t Type2 = (Type >> 8) & 0xff;450 RelType Type2 = (Type >> 8) & 0xff;
304 uint32_t Type3 = (Type >> 16) & 0xff;451 RelType Type3 = (Type >> 16) & 0xff;
305 if (Type2 == R_MIPS_NONE && Type3 == R_MIPS_NONE)452 if (Type2 == R_MIPS_NONE && Type3 == R_MIPS_NONE)
306 return std::make_pair(Type, Val);453 return std::make_pair(Type, Val);
307 if (Type2 == R_MIPS_64 && Type3 == R_MIPS_NONE)454 if (Type2 == R_MIPS_64 && Type3 == R_MIPS_NONE)
308 return std::make_pair(Type2, Val);455 return std::make_pair(Type2, Val);
309 if (Type2 == R_MIPS_SUB && (Type3 == R_MIPS_HI16 || Type3 == R_MIPS_LO16))456 if (Type2 == R_MIPS_SUB && (Type3 == R_MIPS_HI16 || Type3 == R_MIPS_LO16))
310 return std::make_pair(Type3, -Val);457 return std::make_pair(Type3, -Val);
458 if (Type2 == R_MICROMIPS_SUB &&
459 (Type3 == R_MICROMIPS_HI16 || Type3 == R_MICROMIPS_LO16))
460 return std::make_pair(Type3, -Val);
311 error(getErrorLocation(Loc) + "unsupported relocations combination " +461 error(getErrorLocation(Loc) + "unsupported relocations combination " +
312 Twine(Type));462 Twine(Type));
313 return std::make_pair(Type & 0xff, Val);463 return std::make_pair(Type & 0xff, Val);
314}464}
315465
316template <class ELFT>466template <class ELFT>
317void MIPS<ELFT>::relocateOne(uint8_t *Loc, uint32_t Type, uint64_t Val) const {467void MIPS<ELFT>::relocateOne(uint8_t *Loc, RelType Type, uint64_t Val) const {
318 const endianness E = ELFT::TargetEndianness;468 const endianness E = ELFT::TargetEndianness;
469
319 // Thread pointer and DRP offsets from the start of TLS data area.470 // Thread pointer and DRP offsets from the start of TLS data area.
320 // https://www.linux-mips.org/wiki/NPTL471 // https://www.linux-mips.org/wiki/NPTL
321 if (Type == R_MIPS_TLS_DTPREL_HI16 || Type == R_MIPS_TLS_DTPREL_LO16 ||472 if (Type == R_MIPS_TLS_DTPREL_HI16 || Type == R_MIPS_TLS_DTPREL_LO16 ||
322 Type == R_MIPS_TLS_DTPREL32 || Type == R_MIPS_TLS_DTPREL64)473 Type == R_MIPS_TLS_DTPREL32 || Type == R_MIPS_TLS_DTPREL64 ||
474 Type == R_MICROMIPS_TLS_DTPREL_HI16 ||
475 Type == R_MICROMIPS_TLS_DTPREL_LO16) {
323 Val -= 0x8000;476 Val -= 0x8000;
324 else if (Type == R_MIPS_TLS_TPREL_HI16 || Type == R_MIPS_TLS_TPREL_LO16 ||477 } else if (Type == R_MIPS_TLS_TPREL_HI16 || Type == R_MIPS_TLS_TPREL_LO16 ||
325 Type == R_MIPS_TLS_TPREL32 || Type == R_MIPS_TLS_TPREL64)478 Type == R_MIPS_TLS_TPREL32 || Type == R_MIPS_TLS_TPREL64 ||
479 Type == R_MICROMIPS_TLS_TPREL_HI16 ||
480 Type == R_MICROMIPS_TLS_TPREL_LO16) {
326 Val -= 0x7000;481 Val -= 0x7000;
482 }
483
327 if (ELFT::Is64Bits || Config->MipsN32Abi)484 if (ELFT::Is64Bits || Config->MipsN32Abi)
328 std::tie(Type, Val) = calculateMipsRelChain(Loc, Type, Val);485 std::tie(Type, Val) = calculateMipsRelChain(Loc, Type, Val);
486
329 switch (Type) {487 switch (Type) {
330 case R_MIPS_32:488 case R_MIPS_32:
331 case R_MIPS_GPREL32:489 case R_MIPS_GPREL32:
...@@ -339,36 +497,65 @@ void MIPS<ELFT>::relocateOne(uint8_t *Loc, uint32_t Type, uint64_t Val) const {...@@ -339,36 +497,65 @@ void MIPS<ELFT>::relocateOne(uint8_t *Loc, uint32_t Type, uint64_t Val) const {
339 write64<E>(Loc, Val);497 write64<E>(Loc, Val);
340 break;498 break;
341 case R_MIPS_26:499 case R_MIPS_26:
342 write32<E>(Loc, (read32<E>(Loc) & ~0x3ffffff) | ((Val >> 2) & 0x3ffffff));500 writeRelocation<E>(Loc, Val, 26, 2);
343 break;501 break;
344 case R_MIPS_GOT16:502 case R_MIPS_GOT16:
345 // The R_MIPS_GOT16 relocation's value in "relocatable" linking mode503 // The R_MIPS_GOT16 relocation's value in "relocatable" linking mode
346 // is updated addend (not a GOT index). In that case write high 16 bits504 // is updated addend (not a GOT index). In that case write high 16 bits
347 // to store a correct addend value.505 // to store a correct addend value.
348 if (Config->Relocatable)506 if (Config->Relocatable) {
349 writeMipsHi16<E>(Loc, Val);507 writeRelocation<E>(Loc, Val + 0x8000, 16, 16);
350 else {508 } else {
351 checkInt<16>(Loc, Val, Type);509 checkInt<16>(Loc, Val, Type);
352 writeMipsLo16<E>(Loc, Val);510 writeRelocation<E>(Loc, Val, 16, 0);
353 }511 }
354 break;512 break;
513 case R_MICROMIPS_GOT16:
514 if (Config->Relocatable) {
515 writeMicroRelocation32<E>(Loc, Val + 0x8000, 16, 16);
516 } else {
517 checkInt<16>(Loc, Val, Type);
518 writeMicroRelocation32<E>(Loc, Val, 16, 0);
519 }
520 break;
521 case R_MIPS_CALL16:
355 case R_MIPS_GOT_DISP:522 case R_MIPS_GOT_DISP:
356 case R_MIPS_GOT_PAGE:523 case R_MIPS_GOT_PAGE:
357 case R_MIPS_GPREL16:524 case R_MIPS_GPREL16:
358 case R_MIPS_TLS_GD:525 case R_MIPS_TLS_GD:
526 case R_MIPS_TLS_GOTTPREL:
359 case R_MIPS_TLS_LDM:527 case R_MIPS_TLS_LDM:
360 checkInt<16>(Loc, Val, Type);528 checkInt<16>(Loc, Val, Type);
361 LLVM_FALLTHROUGH;529 LLVM_FALLTHROUGH;
362 case R_MIPS_CALL16:
363 case R_MIPS_CALL_LO16:530 case R_MIPS_CALL_LO16:
364 case R_MIPS_GOT_LO16:531 case R_MIPS_GOT_LO16:
365 case R_MIPS_GOT_OFST:532 case R_MIPS_GOT_OFST:
366 case R_MIPS_LO16:533 case R_MIPS_LO16:
367 case R_MIPS_PCLO16:534 case R_MIPS_PCLO16:
368 case R_MIPS_TLS_DTPREL_LO16:535 case R_MIPS_TLS_DTPREL_LO16:
369 case R_MIPS_TLS_GOTTPREL:
370 case R_MIPS_TLS_TPREL_LO16:536 case R_MIPS_TLS_TPREL_LO16:
371 writeMipsLo16<E>(Loc, Val);537 writeRelocation<E>(Loc, Val, 16, 0);
538 break;
539 case R_MICROMIPS_GOT_DISP:
540 case R_MICROMIPS_GOT_PAGE:
541 case R_MICROMIPS_GPREL16:
542 case R_MICROMIPS_TLS_GD:
543 case R_MICROMIPS_TLS_LDM:
544 checkInt<16>(Loc, Val, Type);
545 writeMicroRelocation32<E>(Loc, Val, 16, 0);
546 break;
547 case R_MICROMIPS_CALL16:
548 case R_MICROMIPS_CALL_LO16:
549 case R_MICROMIPS_GOT_OFST:
550 case R_MICROMIPS_LO16:
551 case R_MICROMIPS_TLS_DTPREL_LO16:
552 case R_MICROMIPS_TLS_GOTTPREL:
553 case R_MICROMIPS_TLS_TPREL_LO16:
554 writeMicroRelocation32<E>(Loc, Val, 16, 0);
555 break;
556 case R_MICROMIPS_GPREL7_S2:
557 checkInt<7>(Loc, Val, Type);
558 writeMicroRelocation32<E>(Loc, Val, 7, 2);
372 break;559 break;
373 case R_MIPS_CALL_HI16:560 case R_MIPS_CALL_HI16:
374 case R_MIPS_GOT_HI16:561 case R_MIPS_GOT_HI16:
...@@ -376,40 +563,107 @@ void MIPS<ELFT>::relocateOne(uint8_t *Loc, uint32_t Type, uint64_t Val) const {...@@ -376,40 +563,107 @@ void MIPS<ELFT>::relocateOne(uint8_t *Loc, uint32_t Type, uint64_t Val) const {
376 case R_MIPS_PCHI16:563 case R_MIPS_PCHI16:
377 case R_MIPS_TLS_DTPREL_HI16:564 case R_MIPS_TLS_DTPREL_HI16:
378 case R_MIPS_TLS_TPREL_HI16:565 case R_MIPS_TLS_TPREL_HI16:
379 writeMipsHi16<E>(Loc, Val);566 writeRelocation<E>(Loc, Val + 0x8000, 16, 16);
567 break;
568 case R_MICROMIPS_CALL_HI16:
569 case R_MICROMIPS_GOT_HI16:
570 case R_MICROMIPS_HI16:
571 case R_MICROMIPS_TLS_DTPREL_HI16:
572 case R_MICROMIPS_TLS_TPREL_HI16:
573 writeMicroRelocation32<E>(Loc, Val + 0x8000, 16, 16);
380 break;574 break;
381 case R_MIPS_HIGHER:575 case R_MIPS_HIGHER:
382 writeMipsHigher<E>(Loc, Val);576 writeRelocation<E>(Loc, Val + 0x80008000, 16, 32);
383 break;577 break;
384 case R_MIPS_HIGHEST:578 case R_MIPS_HIGHEST:
385 writeMipsHighest<E>(Loc, Val);579 writeRelocation<E>(Loc, Val + 0x800080008000, 16, 48);
580 break;
581 case R_MICROMIPS_HIGHER:
582 writeMicroRelocation32<E>(Loc, Val + 0x80008000, 16, 32);
583 break;
584 case R_MICROMIPS_HIGHEST:
585 writeMicroRelocation32<E>(Loc, Val + 0x800080008000, 16, 48);
386 break;586 break;
387 case R_MIPS_JALR:587 case R_MIPS_JALR:
588 case R_MICROMIPS_JALR:
388 // Ignore this optimization relocation for now589 // Ignore this optimization relocation for now
389 break;590 break;
390 case R_MIPS_PC16:591 case R_MIPS_PC16:
391 applyMipsPcReloc<E, 16, 2>(Loc, Type, Val);592 checkAlignment<4>(Loc, Val, Type);
593 checkInt<18>(Loc, Val, Type);
594 writeRelocation<E>(Loc, Val, 16, 2);
392 break;595 break;
393 case R_MIPS_PC19_S2:596 case R_MIPS_PC19_S2:
394 applyMipsPcReloc<E, 19, 2>(Loc, Type, Val);597 checkAlignment<4>(Loc, Val, Type);
598 checkInt<21>(Loc, Val, Type);
599 writeRelocation<E>(Loc, Val, 19, 2);
395 break;600 break;
396 case R_MIPS_PC21_S2:601 case R_MIPS_PC21_S2:
397 applyMipsPcReloc<E, 21, 2>(Loc, Type, Val);602 checkAlignment<4>(Loc, Val, Type);
603 checkInt<23>(Loc, Val, Type);
604 writeRelocation<E>(Loc, Val, 21, 2);
398 break;605 break;
399 case R_MIPS_PC26_S2:606 case R_MIPS_PC26_S2:
400 applyMipsPcReloc<E, 26, 2>(Loc, Type, Val);607 checkAlignment<4>(Loc, Val, Type);
608 checkInt<28>(Loc, Val, Type);
609 writeRelocation<E>(Loc, Val, 26, 2);
401 break;610 break;
402 case R_MIPS_PC32:611 case R_MIPS_PC32:
403 applyMipsPcReloc<E, 32, 0>(Loc, Type, Val);612 writeRelocation<E>(Loc, Val, 32, 0);
613 break;
614 case R_MICROMIPS_26_S1:
615 case R_MICROMIPS_PC26_S1:
616 checkInt<27>(Loc, Val, Type);
617 writeMicroRelocation32<E>(Loc, Val, 26, 1);
618 break;
619 case R_MICROMIPS_PC7_S1:
620 checkInt<8>(Loc, Val, Type);
621 writeMicroRelocation16<E>(Loc, Val, 7, 1);
622 break;
623 case R_MICROMIPS_PC10_S1:
624 checkInt<11>(Loc, Val, Type);
625 writeMicroRelocation16<E>(Loc, Val, 10, 1);
626 break;
627 case R_MICROMIPS_PC16_S1:
628 checkInt<17>(Loc, Val, Type);
629 writeMicroRelocation32<E>(Loc, Val, 16, 1);
630 break;
631 case R_MICROMIPS_PC18_S3:
632 checkInt<21>(Loc, Val, Type);
633 writeMicroRelocation32<E>(Loc, Val, 18, 3);
634 break;
635 case R_MICROMIPS_PC19_S2:
636 checkInt<21>(Loc, Val, Type);
637 writeMicroRelocation32<E>(Loc, Val, 19, 2);
638 break;
639 case R_MICROMIPS_PC21_S1:
640 checkInt<22>(Loc, Val, Type);
641 writeMicroRelocation32<E>(Loc, Val, 21, 1);
642 break;
643 case R_MICROMIPS_PC23_S2:
644 checkInt<25>(Loc, Val, Type);
645 writeMicroRelocation32<E>(Loc, Val, 23, 2);
404 break;646 break;
405 default:647 default:
406 error(getErrorLocation(Loc) + "unrecognized reloc " + Twine(Type));648 error(getErrorLocation(Loc) + "unrecognized reloc " + Twine(Type));
407 }649 }
408}650}
409651
410template <class ELFT>652template <class ELFT> bool MIPS<ELFT>::usesOnlyLowPageBits(RelType Type) const {
411bool MIPS<ELFT>::usesOnlyLowPageBits(uint32_t Type) const {653 return Type == R_MIPS_LO16 || Type == R_MIPS_GOT_OFST ||
412 return Type == R_MIPS_LO16 || Type == R_MIPS_GOT_OFST;654 Type == R_MICROMIPS_LO16 || Type == R_MICROMIPS_GOT_OFST;
655}
656
657// Return true if the symbol is a PIC function.
658template <class ELFT> bool elf::isMipsPIC(const Defined *Sym) {
659 typedef typename ELFT::Ehdr Elf_Ehdr;
660 if (!Sym->Section || !Sym->isFunc())
661 return false;
662
663 auto *Sec = cast<InputSectionBase>(Sym->Section);
664 const Elf_Ehdr *Hdr = Sec->template getFile<ELFT>()->getObj().getHeader();
665 return (Sym->StOther & STO_MIPS_MIPS16) == STO_MIPS_PIC ||
666 (Hdr->e_flags & EF_MIPS_PIC);
413}667}
414668
415template <class ELFT> TargetInfo *elf::getMipsTargetInfo() {669template <class ELFT> TargetInfo *elf::getMipsTargetInfo() {
...@@ -421,3 +675,8 @@ template TargetInfo *elf::getMipsTargetInfo<ELF32LE>();...@@ -421,3 +675,8 @@ template TargetInfo *elf::getMipsTargetInfo<ELF32LE>();
421template TargetInfo *elf::getMipsTargetInfo<ELF32BE>();675template TargetInfo *elf::getMipsTargetInfo<ELF32BE>();
422template TargetInfo *elf::getMipsTargetInfo<ELF64LE>();676template TargetInfo *elf::getMipsTargetInfo<ELF64LE>();
423template TargetInfo *elf::getMipsTargetInfo<ELF64BE>();677template TargetInfo *elf::getMipsTargetInfo<ELF64BE>();
678
679template bool elf::isMipsPIC<ELF32LE>(const Defined *);
680template bool elf::isMipsPIC<ELF32BE>(const Defined *);
681template bool elf::isMipsPIC<ELF64LE>(const Defined *);
682template bool elf::isMipsPIC<ELF64BE>(const Defined *);
deps/lld/ELF/Arch/MipsArchTree.cpp+34-20
...@@ -11,11 +11,11 @@...@@ -11,11 +11,11 @@
11//11//
12//===---------------------------------------------------------------------===//12//===---------------------------------------------------------------------===//
1313
14#include "Error.h"
15#include "InputFiles.h"14#include "InputFiles.h"
16#include "SymbolTable.h"15#include "SymbolTable.h"
17#include "Writer.h"16#include "Writer.h"
1817
18#include "lld/Common/ErrorHandler.h"
19#include "llvm/BinaryFormat/ELF.h"19#include "llvm/BinaryFormat/ELF.h"
20#include "llvm/Object/ELF.h"20#include "llvm/Object/ELF.h"
21#include "llvm/Support/MipsABIFlags.h"21#include "llvm/Support/MipsABIFlags.h"
...@@ -34,7 +34,7 @@ struct ArchTreeEdge {...@@ -34,7 +34,7 @@ struct ArchTreeEdge {
34};34};
3535
36struct FileFlags {36struct FileFlags {
37 StringRef Filename;37 InputFile *File;
38 uint32_t Flags;38 uint32_t Flags;
39};39};
40} // namespace40} // namespace
...@@ -73,17 +73,17 @@ static void checkFlags(ArrayRef<FileFlags> Files) {...@@ -73,17 +73,17 @@ static void checkFlags(ArrayRef<FileFlags> Files) {
73 uint32_t ABI2 = F.Flags & (EF_MIPS_ABI | EF_MIPS_ABI2);73 uint32_t ABI2 = F.Flags & (EF_MIPS_ABI | EF_MIPS_ABI2);
74 if (ABI != ABI2)74 if (ABI != ABI2)
75 error("target ABI '" + getAbiName(ABI) + "' is incompatible with '" +75 error("target ABI '" + getAbiName(ABI) + "' is incompatible with '" +
76 getAbiName(ABI2) + "': " + F.Filename);76 getAbiName(ABI2) + "': " + toString(F.File));
7777
78 bool Nan2 = F.Flags & EF_MIPS_NAN2008;78 bool Nan2 = F.Flags & EF_MIPS_NAN2008;
79 if (Nan != Nan2)79 if (Nan != Nan2)
80 error("target -mnan=" + getNanName(Nan) + " is incompatible with -mnan=" +80 error("target -mnan=" + getNanName(Nan) + " is incompatible with -mnan=" +
81 getNanName(Nan2) + ": " + F.Filename);81 getNanName(Nan2) + ": " + toString(F.File));
8282
83 bool Fp2 = F.Flags & EF_MIPS_FP64;83 bool Fp2 = F.Flags & EF_MIPS_FP64;
84 if (Fp != Fp2)84 if (Fp != Fp2)
85 error("target -mfp" + getFpName(Fp) + " is incompatible with -mfp" +85 error("target -mfp" + getFpName(Fp) + " is incompatible with -mfp" +
86 getFpName(Fp2) + ": " + F.Filename);86 getFpName(Fp2) + ": " + toString(F.File));
87 }87 }
88}88}
8989
...@@ -102,9 +102,11 @@ static uint32_t getPicFlags(ArrayRef<FileFlags> Files) {...@@ -102,9 +102,11 @@ static uint32_t getPicFlags(ArrayRef<FileFlags> Files) {
102 for (const FileFlags &F : Files.slice(1)) {102 for (const FileFlags &F : Files.slice(1)) {
103 bool IsPic2 = F.Flags & (EF_MIPS_PIC | EF_MIPS_CPIC);103 bool IsPic2 = F.Flags & (EF_MIPS_PIC | EF_MIPS_CPIC);
104 if (IsPic && !IsPic2)104 if (IsPic && !IsPic2)
105 warn("linking abicalls code with non-abicalls file: " + F.Filename);105 warn("linking abicalls code " + toString(Files[0].File) +
106 " with non-abicalls file: " + toString(F.File));
106 if (!IsPic && IsPic2)107 if (!IsPic && IsPic2)
107 warn("linking non-abicalls code with abicalls file: " + F.Filename);108 warn("linking non-abicalls code " + toString(Files[0].File) +
109 " with abicalls file: " + toString(F.File));
108 }110 }
109111
110 // Compute the result PIC/non-PIC flag.112 // Compute the result PIC/non-PIC flag.
...@@ -221,10 +223,6 @@ static StringRef getMachName(uint32_t Flags) {...@@ -221,10 +223,6 @@ static StringRef getMachName(uint32_t Flags) {
221}223}
222224
223static StringRef getArchName(uint32_t Flags) {225static StringRef getArchName(uint32_t Flags) {
224 StringRef S = getMachName(Flags);
225 if (!S.empty())
226 return S;
227
228 switch (Flags & EF_MIPS_ARCH) {226 switch (Flags & EF_MIPS_ARCH) {
229 case EF_MIPS_ARCH_1:227 case EF_MIPS_ARCH_1:
230 return "mips1";228 return "mips1";
...@@ -253,6 +251,14 @@ static StringRef getArchName(uint32_t Flags) {...@@ -253,6 +251,14 @@ static StringRef getArchName(uint32_t Flags) {
253 }251 }
254}252}
255253
254static std::string getFullArchName(uint32_t Flags) {
255 StringRef Arch = getArchName(Flags);
256 StringRef Mach = getMachName(Flags);
257 if (Mach.empty())
258 return Arch.str();
259 return (Arch + " (" + Mach + ")").str();
260}
261
256// There are (arguably too) many MIPS ISAs out there. Their relationships262// There are (arguably too) many MIPS ISAs out there. Their relationships
257// can be represented as a forest. If all input files have ISAs which263// can be represented as a forest. If all input files have ISAs which
258// reachable by repeated proceeding from the single child to the parent,264// reachable by repeated proceeding from the single child to the parent,
...@@ -272,8 +278,9 @@ static uint32_t getArchFlags(ArrayRef<FileFlags> Files) {...@@ -272,8 +278,9 @@ static uint32_t getArchFlags(ArrayRef<FileFlags> Files) {
272 if (isArchMatched(New, Ret))278 if (isArchMatched(New, Ret))
273 continue;279 continue;
274 if (!isArchMatched(Ret, New)) {280 if (!isArchMatched(Ret, New)) {
275 error("target ISA '" + getArchName(Ret) + "' is incompatible with '" +281 error("incompatible target ISA:\n>>> " + toString(Files[0].File) + ": " +
276 getArchName(New) + "': " + F.Filename);282 getFullArchName(Ret) + "\n>>> " + toString(F.File) + ": " +
283 getFullArchName(New));
277 return 0;284 return 0;
278 }285 }
279 Ret = New;286 Ret = New;
...@@ -281,10 +288,10 @@ static uint32_t getArchFlags(ArrayRef<FileFlags> Files) {...@@ -281,10 +288,10 @@ static uint32_t getArchFlags(ArrayRef<FileFlags> Files) {
281 return Ret;288 return Ret;
282}289}
283290
284template <class ELFT> uint32_t elf::getMipsEFlags() {291template <class ELFT> uint32_t elf::calcMipsEFlags() {
285 std::vector<FileFlags> V;292 std::vector<FileFlags> V;
286 for (elf::ObjectFile<ELFT> *F : Symtab<ELFT>::X->getObjectFiles())293 for (InputFile *F : ObjectFiles)
287 V.push_back({F->getName(), F->getObj().getHeader()->e_flags});294 V.push_back({F, cast<ObjFile<ELFT>>(F)->getObj().getHeader()->e_flags});
288 if (V.empty())295 if (V.empty())
289 return 0;296 return 0;
290 checkFlags(V);297 checkFlags(V);
...@@ -363,7 +370,14 @@ bool elf::isMipsN32Abi(const InputFile *F) {...@@ -363,7 +370,14 @@ bool elf::isMipsN32Abi(const InputFile *F) {
363 }370 }
364}371}
365372
366template uint32_t elf::getMipsEFlags<ELF32LE>();373bool elf::isMicroMips() { return Config->EFlags & EF_MIPS_MICROMIPS; }
367template uint32_t elf::getMipsEFlags<ELF32BE>();374
368template uint32_t elf::getMipsEFlags<ELF64LE>();375bool elf::isMipsR6() {
369template uint32_t elf::getMipsEFlags<ELF64BE>();376 uint32_t Arch = Config->EFlags & EF_MIPS_ARCH;
377 return Arch == EF_MIPS_ARCH_32R6 || Arch == EF_MIPS_ARCH_64R6;
378}
379
380template uint32_t elf::calcMipsEFlags<ELF32LE>();
381template uint32_t elf::calcMipsEFlags<ELF32BE>();
382template uint32_t elf::calcMipsEFlags<ELF64LE>();
383template uint32_t elf::calcMipsEFlags<ELF64BE>();
deps/lld/ELF/Arch/PPC.cpp+21-15
...@@ -7,9 +7,9 @@...@@ -7,9 +7,9 @@
7//7//
8//===----------------------------------------------------------------------===//8//===----------------------------------------------------------------------===//
99
10#include "Error.h"
11#include "Symbols.h"10#include "Symbols.h"
12#include "Target.h"11#include "Target.h"
12#include "lld/Common/ErrorHandler.h"
13#include "llvm/Support/Endian.h"13#include "llvm/Support/Endian.h"
1414
15using namespace llvm;15using namespace llvm;
...@@ -22,17 +22,33 @@ namespace {...@@ -22,17 +22,33 @@ namespace {
22class PPC final : public TargetInfo {22class PPC final : public TargetInfo {
23public:23public:
24 PPC() { GotBaseSymOff = 0x8000; }24 PPC() { GotBaseSymOff = 0x8000; }
25 void relocateOne(uint8_t *Loc, uint32_t Type, uint64_t Val) const override;25 void relocateOne(uint8_t *Loc, RelType Type, uint64_t Val) const override;
26 RelExpr getRelExpr(uint32_t Type, const SymbolBody &S,26 RelExpr getRelExpr(RelType Type, const Symbol &S,
27 const uint8_t *Loc) const override;27 const uint8_t *Loc) const override;
28};28};
29} // namespace29} // namespace
3030
31void PPC::relocateOne(uint8_t *Loc, uint32_t Type, uint64_t Val) const {31RelExpr PPC::getRelExpr(RelType Type, const Symbol &S,
32 const uint8_t *Loc) const {
33 switch (Type) {
34 case R_PPC_REL24:
35 case R_PPC_REL32:
36 return R_PC;
37 case R_PPC_PLTREL24:
38 return R_PLT_PC;
39 default:
40 return R_ABS;
41 }
42}
43
44void PPC::relocateOne(uint8_t *Loc, RelType Type, uint64_t Val) const {
32 switch (Type) {45 switch (Type) {
33 case R_PPC_ADDR16_HA:46 case R_PPC_ADDR16_HA:
34 write16be(Loc, (Val + 0x8000) >> 16);47 write16be(Loc, (Val + 0x8000) >> 16);
35 break;48 break;
49 case R_PPC_ADDR16_HI:
50 write16be(Loc, Val >> 16);
51 break;
36 case R_PPC_ADDR16_LO:52 case R_PPC_ADDR16_LO:
37 write16be(Loc, Val);53 write16be(Loc, Val);
38 break;54 break;
...@@ -40,6 +56,7 @@ void PPC::relocateOne(uint8_t *Loc, uint32_t Type, uint64_t Val) const {...@@ -40,6 +56,7 @@ void PPC::relocateOne(uint8_t *Loc, uint32_t Type, uint64_t Val) const {
40 case R_PPC_REL32:56 case R_PPC_REL32:
41 write32be(Loc, Val);57 write32be(Loc, Val);
42 break;58 break;
59 case R_PPC_PLTREL24:
43 case R_PPC_REL24:60 case R_PPC_REL24:
44 write32be(Loc, read32be(Loc) | (Val & 0x3FFFFFC));61 write32be(Loc, read32be(Loc) | (Val & 0x3FFFFFC));
45 break;62 break;
...@@ -48,17 +65,6 @@ void PPC::relocateOne(uint8_t *Loc, uint32_t Type, uint64_t Val) const {...@@ -48,17 +65,6 @@ void PPC::relocateOne(uint8_t *Loc, uint32_t Type, uint64_t Val) const {
48 }65 }
49}66}
5067
51RelExpr PPC::getRelExpr(uint32_t Type, const SymbolBody &S,
52 const uint8_t *Loc) const {
53 switch (Type) {
54 case R_PPC_REL24:
55 case R_PPC_REL32:
56 return R_PC;
57 default:
58 return R_ABS;
59 }
60}
61
62TargetInfo *elf::getPPCTargetInfo() {68TargetInfo *elf::getPPCTargetInfo() {
63 static PPC Target;69 static PPC Target;
64 return &Target;70 return &Target;
deps/lld/ELF/Arch/PPC64.cpp+8-8
...@@ -7,10 +7,10 @@...@@ -7,10 +7,10 @@
7//7//
8//===----------------------------------------------------------------------===//8//===----------------------------------------------------------------------===//
99
10#include "Error.h"
11#include "Symbols.h"10#include "Symbols.h"
12#include "SyntheticSections.h"11#include "SyntheticSections.h"
13#include "Target.h"12#include "Target.h"
13#include "lld/Common/ErrorHandler.h"
14#include "llvm/Support/Endian.h"14#include "llvm/Support/Endian.h"
1515
16using namespace llvm;16using namespace llvm;
...@@ -39,11 +39,11 @@ namespace {...@@ -39,11 +39,11 @@ namespace {
39class PPC64 final : public TargetInfo {39class PPC64 final : public TargetInfo {
40public:40public:
41 PPC64();41 PPC64();
42 RelExpr getRelExpr(uint32_t Type, const SymbolBody &S,42 RelExpr getRelExpr(RelType Type, const Symbol &S,
43 const uint8_t *Loc) const override;43 const uint8_t *Loc) const override;
44 void writePlt(uint8_t *Buf, uint64_t GotPltEntryAddr, uint64_t PltEntryAddr,44 void writePlt(uint8_t *Buf, uint64_t GotPltEntryAddr, uint64_t PltEntryAddr,
45 int32_t Index, unsigned RelOff) const override;45 int32_t Index, unsigned RelOff) const override;
46 void relocateOne(uint8_t *Loc, uint32_t Type, uint64_t Val) const override;46 void relocateOne(uint8_t *Loc, RelType Type, uint64_t Val) const override;
47};47};
48} // namespace48} // namespace
4949
...@@ -82,11 +82,9 @@ PPC64::PPC64() {...@@ -82,11 +82,9 @@ PPC64::PPC64() {
82 DefaultImageBase = 0x10000000;82 DefaultImageBase = 0x10000000;
83}83}
8484
85RelExpr PPC64::getRelExpr(uint32_t Type, const SymbolBody &S,85RelExpr PPC64::getRelExpr(RelType Type, const Symbol &S,
86 const uint8_t *Loc) const {86 const uint8_t *Loc) const {
87 switch (Type) {87 switch (Type) {
88 default:
89 return R_ABS;
90 case R_PPC64_TOC16:88 case R_PPC64_TOC16:
91 case R_PPC64_TOC16_DS:89 case R_PPC64_TOC16_DS:
92 case R_PPC64_TOC16_HA:90 case R_PPC64_TOC16_HA:
...@@ -98,6 +96,8 @@ RelExpr PPC64::getRelExpr(uint32_t Type, const SymbolBody &S,...@@ -98,6 +96,8 @@ RelExpr PPC64::getRelExpr(uint32_t Type, const SymbolBody &S,
98 return R_PPC_TOC;96 return R_PPC_TOC;
99 case R_PPC64_REL24:97 case R_PPC64_REL24:
100 return R_PPC_PLT_OPD;98 return R_PPC_PLT_OPD;
99 default:
100 return R_ABS;
101 }101 }
102}102}
103103
...@@ -122,7 +122,7 @@ void PPC64::writePlt(uint8_t *Buf, uint64_t GotPltEntryAddr,...@@ -122,7 +122,7 @@ void PPC64::writePlt(uint8_t *Buf, uint64_t GotPltEntryAddr,
122 write32be(Buf + 28, 0x4e800420); // bctr122 write32be(Buf + 28, 0x4e800420); // bctr
123}123}
124124
125static std::pair<uint32_t, uint64_t> toAddr16Rel(uint32_t Type, uint64_t Val) {125static std::pair<RelType, uint64_t> toAddr16Rel(RelType Type, uint64_t Val) {
126 uint64_t V = Val - PPC64TocOffset;126 uint64_t V = Val - PPC64TocOffset;
127 switch (Type) {127 switch (Type) {
128 case R_PPC64_TOC16:128 case R_PPC64_TOC16:
...@@ -142,7 +142,7 @@ static std::pair<uint32_t, uint64_t> toAddr16Rel(uint32_t Type, uint64_t Val) {...@@ -142,7 +142,7 @@ static std::pair<uint32_t, uint64_t> toAddr16Rel(uint32_t Type, uint64_t Val) {
142 }142 }
143}143}
144144
145void PPC64::relocateOne(uint8_t *Loc, uint32_t Type, uint64_t Val) const {145void PPC64::relocateOne(uint8_t *Loc, RelType Type, uint64_t Val) const {
146 // For a TOC-relative relocation, proceed in terms of the corresponding146 // For a TOC-relative relocation, proceed in terms of the corresponding
147 // ADDR16 relocation type.147 // ADDR16 relocation type.
148 std::tie(Type, Val) = toAddr16Rel(Type, Val);148 std::tie(Type, Val) = toAddr16Rel(Type, Val);
deps/lld/ELF/Arch/SPARCV9.cpp+6-7
...@@ -7,11 +7,11 @@...@@ -7,11 +7,11 @@
7//7//
8//===----------------------------------------------------------------------===//8//===----------------------------------------------------------------------===//
99
10#include "Error.h"
11#include "InputFiles.h"10#include "InputFiles.h"
12#include "Symbols.h"11#include "Symbols.h"
13#include "SyntheticSections.h"12#include "SyntheticSections.h"
14#include "Target.h"13#include "Target.h"
14#include "lld/Common/ErrorHandler.h"
15#include "llvm/Support/Endian.h"15#include "llvm/Support/Endian.h"
1616
17using namespace llvm;17using namespace llvm;
...@@ -24,11 +24,11 @@ namespace {...@@ -24,11 +24,11 @@ namespace {
24class SPARCV9 final : public TargetInfo {24class SPARCV9 final : public TargetInfo {
25public:25public:
26 SPARCV9();26 SPARCV9();
27 RelExpr getRelExpr(uint32_t Type, const SymbolBody &S,27 RelExpr getRelExpr(RelType Type, const Symbol &S,
28 const uint8_t *Loc) const override;28 const uint8_t *Loc) const override;
29 void writePlt(uint8_t *Buf, uint64_t GotEntryAddr, uint64_t PltEntryAddr,29 void writePlt(uint8_t *Buf, uint64_t GotEntryAddr, uint64_t PltEntryAddr,
30 int32_t Index, unsigned RelOff) const override;30 int32_t Index, unsigned RelOff) const override;
31 void relocateOne(uint8_t *Loc, uint32_t Type, uint64_t Val) const override;31 void relocateOne(uint8_t *Loc, RelType Type, uint64_t Val) const override;
32};32};
33} // namespace33} // namespace
3434
...@@ -46,7 +46,7 @@ SPARCV9::SPARCV9() {...@@ -46,7 +46,7 @@ SPARCV9::SPARCV9() {
46 DefaultImageBase = 0x100000;46 DefaultImageBase = 0x100000;
47}47}
4848
49RelExpr SPARCV9::getRelExpr(uint32_t Type, const SymbolBody &S,49RelExpr SPARCV9::getRelExpr(RelType Type, const Symbol &S,
50 const uint8_t *Loc) const {50 const uint8_t *Loc) const {
51 switch (Type) {51 switch (Type) {
52 case R_SPARC_32:52 case R_SPARC_32:
...@@ -68,12 +68,11 @@ RelExpr SPARCV9::getRelExpr(uint32_t Type, const SymbolBody &S,...@@ -68,12 +68,11 @@ RelExpr SPARCV9::getRelExpr(uint32_t Type, const SymbolBody &S,
68 case R_SPARC_NONE:68 case R_SPARC_NONE:
69 return R_NONE;69 return R_NONE;
70 default:70 default:
71 error(toString(S.File) + ": unknown relocation type: " + toString(Type));71 return R_INVALID;
72 return R_HINT;
73 }72 }
74}73}
7574
76void SPARCV9::relocateOne(uint8_t *Loc, uint32_t Type, uint64_t Val) const {75void SPARCV9::relocateOne(uint8_t *Loc, RelType Type, uint64_t Val) const {
77 switch (Type) {76 switch (Type) {
78 case R_SPARC_32:77 case R_SPARC_32:
79 case R_SPARC_UA32:78 case R_SPARC_UA32:
deps/lld/ELF/Arch/X86.cpp+98-57
...@@ -7,11 +7,11 @@...@@ -7,11 +7,11 @@
7//7//
8//===----------------------------------------------------------------------===//8//===----------------------------------------------------------------------===//
99
10#include "Error.h"
11#include "InputFiles.h"10#include "InputFiles.h"
12#include "Symbols.h"11#include "Symbols.h"
13#include "SyntheticSections.h"12#include "SyntheticSections.h"
14#include "Target.h"13#include "Target.h"
14#include "lld/Common/ErrorHandler.h"
15#include "llvm/Support/Endian.h"15#include "llvm/Support/Endian.h"
1616
17using namespace llvm;17using namespace llvm;
...@@ -24,24 +24,24 @@ namespace {...@@ -24,24 +24,24 @@ namespace {
24class X86 final : public TargetInfo {24class X86 final : public TargetInfo {
25public:25public:
26 X86();26 X86();
27 RelExpr getRelExpr(uint32_t Type, const SymbolBody &S,27 RelExpr getRelExpr(RelType Type, const Symbol &S,
28 const uint8_t *Loc) const override;28 const uint8_t *Loc) const override;
29 int64_t getImplicitAddend(const uint8_t *Buf, uint32_t Type) const override;29 int64_t getImplicitAddend(const uint8_t *Buf, RelType Type) const override;
30 void writeGotPltHeader(uint8_t *Buf) const override;30 void writeGotPltHeader(uint8_t *Buf) const override;
31 uint32_t getDynRel(uint32_t Type) const override;31 RelType getDynRel(RelType Type) const override;
32 void writeGotPlt(uint8_t *Buf, const SymbolBody &S) const override;32 void writeGotPlt(uint8_t *Buf, const Symbol &S) const override;
33 void writeIgotPlt(uint8_t *Buf, const SymbolBody &S) const override;33 void writeIgotPlt(uint8_t *Buf, const Symbol &S) const override;
34 void writePltHeader(uint8_t *Buf) const override;34 void writePltHeader(uint8_t *Buf) const override;
35 void writePlt(uint8_t *Buf, uint64_t GotPltEntryAddr, uint64_t PltEntryAddr,35 void writePlt(uint8_t *Buf, uint64_t GotPltEntryAddr, uint64_t PltEntryAddr,
36 int32_t Index, unsigned RelOff) const override;36 int32_t Index, unsigned RelOff) const override;
37 void relocateOne(uint8_t *Loc, uint32_t Type, uint64_t Val) const override;37 void relocateOne(uint8_t *Loc, RelType Type, uint64_t Val) const override;
3838
39 RelExpr adjustRelaxExpr(uint32_t Type, const uint8_t *Data,39 RelExpr adjustRelaxExpr(RelType Type, const uint8_t *Data,
40 RelExpr Expr) const override;40 RelExpr Expr) const override;
41 void relaxTlsGdToIe(uint8_t *Loc, uint32_t Type, uint64_t Val) const override;41 void relaxTlsGdToIe(uint8_t *Loc, RelType Type, uint64_t Val) const override;
42 void relaxTlsGdToLe(uint8_t *Loc, uint32_t Type, uint64_t Val) const override;42 void relaxTlsGdToLe(uint8_t *Loc, RelType Type, uint64_t Val) const override;
43 void relaxTlsIeToLe(uint8_t *Loc, uint32_t Type, uint64_t Val) const override;43 void relaxTlsIeToLe(uint8_t *Loc, RelType Type, uint64_t Val) const override;
44 void relaxTlsLdToLe(uint8_t *Loc, uint32_t Type, uint64_t Val) const override;44 void relaxTlsLdToLe(uint8_t *Loc, RelType Type, uint64_t Val) const override;
45};45};
46} // namespace46} // namespace
4747
...@@ -63,7 +63,9 @@ X86::X86() {...@@ -63,7 +63,9 @@ X86::X86() {
63 TrapInstr = 0xcccccccc; // 0xcc = INT363 TrapInstr = 0xcccccccc; // 0xcc = INT3
64}64}
6565
66RelExpr X86::getRelExpr(uint32_t Type, const SymbolBody &S,66static bool hasBaseReg(uint8_t ModRM) { return (ModRM & 0xc7) != 0x5; }
67
68RelExpr X86::getRelExpr(RelType Type, const Symbol &S,
67 const uint8_t *Loc) const {69 const uint8_t *Loc) const {
68 switch (Type) {70 switch (Type) {
69 case R_386_8:71 case R_386_8:
...@@ -87,24 +89,42 @@ RelExpr X86::getRelExpr(uint32_t Type, const SymbolBody &S,...@@ -87,24 +89,42 @@ RelExpr X86::getRelExpr(uint32_t Type, const SymbolBody &S,
87 return R_GOT;89 return R_GOT;
88 case R_386_GOT32:90 case R_386_GOT32:
89 case R_386_GOT32X:91 case R_386_GOT32X:
90 // These relocations can be calculated in two different ways.92 // These relocations are arguably mis-designed because their calculations
91 // Usual calculation is G + A - GOT what means an offset in GOT table93 // depend on the instructions they are applied to. This is bad because we
92 // (R_GOT_FROM_END). When instruction pointed by relocation has no base94 // usually don't care about whether the target section contains valid
93 // register, then relocations can be used when PIC code is disabled. In that95 // machine instructions or not. But this is part of the documented ABI, so
94 // case calculation is G + A, it resolves to an address of entry in GOT96 // we had to implement as the standard requires.
95 // (R_GOT) and not an offset.
96 //97 //
97 // To check that instruction has no base register we scan ModR/M byte.98 // x86 does not support PC-relative data access. Therefore, in order to
98 // See "Table 2-2. 32-Bit Addressing Forms with the ModR/M Byte"99 // access GOT contents, a GOT address needs to be known at link-time
99 // (http://www.intel.com/content/dam/www/public/us/en/documents/manuals/100 // (which means non-PIC) or compilers have to emit code to get a GOT
100 // 64-ia-32-architectures-software-developer-instruction-set-reference-manual-325383.pdf)101 // address at runtime (which means code is position-independent but
101 if ((Loc[-1] & 0xc7) != 0x5)102 // compilers need to emit extra code for each GOT access.) This decision
102 return R_GOT_FROM_END;103 // is made at compile-time. In the latter case, compilers emit code to
103 if (Config->Pic)104 // load an GOT address to a register, which is usually %ebx.
104 error(toString(S.File) + ": relocation " + toString(Type) + " against '" +105 //
105 S.getName() +106 // So, there are two ways to refer to symbol foo's GOT entry: foo@GOT or
106 "' without base register can not be used when PIC enabled");107 // foo@GOT(%reg).
107 return R_GOT;108 //
109 // foo@GOT is not usable in PIC. If we are creating a PIC output and if we
110 // find such relocation, we should report an error. foo@GOT is resolved to
111 // an *absolute* address of foo's GOT entry, because both GOT address and
112 // foo's offset are known. In other words, it's G + A.
113 //
114 // foo@GOT(%reg) needs to be resolved to a *relative* offset from a GOT to
115 // foo's GOT entry in the table, because GOT address is not known but foo's
116 // offset in the table is known. It's G + A - GOT.
117 //
118 // It's unfortunate that compilers emit the same relocation for these
119 // different use cases. In order to distinguish them, we have to read a
120 // machine instruction.
121 //
122 // The following code implements it. We assume that Loc[0] is the first
123 // byte of a displacement or an immediate field of a valid machine
124 // instruction. That means a ModRM byte is at Loc[-1]. By taking a look at
125 // the byte, we can determine whether the instruction is register-relative
126 // (i.e. it was generated for foo@GOT(%reg)) or absolute (i.e. foo@GOT).
127 return hasBaseReg(Loc[-1]) ? R_GOT_FROM_END : R_GOT;
108 case R_386_TLS_GOTIE:128 case R_386_TLS_GOTIE:
109 return R_GOT_FROM_END;129 return R_GOT_FROM_END;
110 case R_386_GOTOFF:130 case R_386_GOTOFF:
...@@ -116,12 +136,11 @@ RelExpr X86::getRelExpr(uint32_t Type, const SymbolBody &S,...@@ -116,12 +136,11 @@ RelExpr X86::getRelExpr(uint32_t Type, const SymbolBody &S,
116 case R_386_NONE:136 case R_386_NONE:
117 return R_NONE;137 return R_NONE;
118 default:138 default:
119 error(toString(S.File) + ": unknown relocation type: " + toString(Type));139 return R_INVALID;
120 return R_HINT;
121 }140 }
122}141}
123142
124RelExpr X86::adjustRelaxExpr(uint32_t Type, const uint8_t *Data,143RelExpr X86::adjustRelaxExpr(RelType Type, const uint8_t *Data,
125 RelExpr Expr) const {144 RelExpr Expr) const {
126 switch (Expr) {145 switch (Expr) {
127 default:146 default:
...@@ -137,18 +156,18 @@ void X86::writeGotPltHeader(uint8_t *Buf) const {...@@ -137,18 +156,18 @@ void X86::writeGotPltHeader(uint8_t *Buf) const {
137 write32le(Buf, InX::Dynamic->getVA());156 write32le(Buf, InX::Dynamic->getVA());
138}157}
139158
140void X86::writeGotPlt(uint8_t *Buf, const SymbolBody &S) const {159void X86::writeGotPlt(uint8_t *Buf, const Symbol &S) const {
141 // Entries in .got.plt initially points back to the corresponding160 // Entries in .got.plt initially points back to the corresponding
142 // PLT entries with a fixed offset to skip the first instruction.161 // PLT entries with a fixed offset to skip the first instruction.
143 write32le(Buf, S.getPltVA() + 6);162 write32le(Buf, S.getPltVA() + 6);
144}163}
145164
146void X86::writeIgotPlt(uint8_t *Buf, const SymbolBody &S) const {165void X86::writeIgotPlt(uint8_t *Buf, const Symbol &S) const {
147 // An x86 entry is the address of the ifunc resolver function.166 // An x86 entry is the address of the ifunc resolver function.
148 write32le(Buf, S.getVA());167 write32le(Buf, S.getVA());
149}168}
150169
151uint32_t X86::getDynRel(uint32_t Type) const {170RelType X86::getDynRel(RelType Type) const {
152 if (Type == R_386_TLS_LE)171 if (Type == R_386_TLS_LE)
153 return R_386_TLS_TPOFF;172 return R_386_TLS_TPOFF;
154 if (Type == R_386_TLS_LE_32)173 if (Type == R_386_TLS_LE_32)
...@@ -173,9 +192,9 @@ void X86::writePltHeader(uint8_t *Buf) const {...@@ -173,9 +192,9 @@ void X86::writePltHeader(uint8_t *Buf) const {
173 }192 }
174193
175 const uint8_t PltData[] = {194 const uint8_t PltData[] = {
176 0xff, 0x35, 0x00, 0x00, 0x00, 0x00, // pushl (GOTPLT+4)195 0xff, 0x35, 0, 0, 0, 0, // pushl (GOTPLT+4)
177 0xff, 0x25, 0x00, 0x00, 0x00, 0x00, // jmp *(GOTPLT+8)196 0xff, 0x25, 0, 0, 0, 0, // jmp *(GOTPLT+8)
178 0x90, 0x90, 0x90, 0x90 // nop197 0x90, 0x90, 0x90, 0x90, // nop
179 };198 };
180 memcpy(Buf, PltData, sizeof(PltData));199 memcpy(Buf, PltData, sizeof(PltData));
181 uint32_t GotPlt = InX::GotPlt->getVA();200 uint32_t GotPlt = InX::GotPlt->getVA();
...@@ -187,9 +206,9 @@ void X86::writePlt(uint8_t *Buf, uint64_t GotPltEntryAddr,...@@ -187,9 +206,9 @@ void X86::writePlt(uint8_t *Buf, uint64_t GotPltEntryAddr,
187 uint64_t PltEntryAddr, int32_t Index,206 uint64_t PltEntryAddr, int32_t Index,
188 unsigned RelOff) const {207 unsigned RelOff) const {
189 const uint8_t Inst[] = {208 const uint8_t Inst[] = {
190 0xff, 0x00, 0x00, 0x00, 0x00, 0x00, // jmp *foo_in_GOT|*foo@GOT(%ebx)209 0xff, 0x00, 0, 0, 0, 0, // jmp *foo_in_GOT or jmp *foo@GOT(%ebx)
191 0x68, 0x00, 0x00, 0x00, 0x00, // pushl $reloc_offset210 0x68, 0, 0, 0, 0, // pushl $reloc_offset
192 0xe9, 0x00, 0x00, 0x00, 0x00 // jmp .PLT0@PC211 0xe9, 0, 0, 0, 0, // jmp .PLT0@PC
193 };212 };
194 memcpy(Buf, Inst, sizeof(Inst));213 memcpy(Buf, Inst, sizeof(Inst));
195214
...@@ -208,10 +227,8 @@ void X86::writePlt(uint8_t *Buf, uint64_t GotPltEntryAddr,...@@ -208,10 +227,8 @@ void X86::writePlt(uint8_t *Buf, uint64_t GotPltEntryAddr,
208 write32le(Buf + 12, -Index * PltEntrySize - PltHeaderSize - 16);227 write32le(Buf + 12, -Index * PltEntrySize - PltHeaderSize - 16);
209}228}
210229
211int64_t X86::getImplicitAddend(const uint8_t *Buf, uint32_t Type) const {230int64_t X86::getImplicitAddend(const uint8_t *Buf, RelType Type) const {
212 switch (Type) {231 switch (Type) {
213 default:
214 return 0;
215 case R_386_8:232 case R_386_8:
216 case R_386_PC8:233 case R_386_PC8:
217 return SignExtend64<8>(*Buf);234 return SignExtend64<8>(*Buf);
...@@ -228,15 +245,17 @@ int64_t X86::getImplicitAddend(const uint8_t *Buf, uint32_t Type) const {...@@ -228,15 +245,17 @@ int64_t X86::getImplicitAddend(const uint8_t *Buf, uint32_t Type) const {
228 case R_386_TLS_LDO_32:245 case R_386_TLS_LDO_32:
229 case R_386_TLS_LE:246 case R_386_TLS_LE:
230 return SignExtend64<32>(read32le(Buf));247 return SignExtend64<32>(read32le(Buf));
248 default:
249 return 0;
231 }250 }
232}251}
233252
234void X86::relocateOne(uint8_t *Loc, uint32_t Type, uint64_t Val) const {253void X86::relocateOne(uint8_t *Loc, RelType Type, uint64_t Val) const {
235 // R_386_{PC,}{8,16} are not part of the i386 psABI, but they are
236 // being used for some 16-bit programs such as boot loaders, so
237 // we want to support them.
238 switch (Type) {254 switch (Type) {
239 case R_386_8:255 case R_386_8:
256 // R_386_{PC,}{8,16} are not part of the i386 psABI, but they are
257 // being used for some 16-bit programs such as boot loaders, so
258 // we want to support them.
240 checkUInt<8>(Loc, Val, Type);259 checkUInt<8>(Loc, Val, Type);
241 *Loc = Val;260 *Loc = Val;
242 break;261 break;
...@@ -262,13 +281,35 @@ void X86::relocateOne(uint8_t *Loc, uint32_t Type, uint64_t Val) const {...@@ -262,13 +281,35 @@ void X86::relocateOne(uint8_t *Loc, uint32_t Type, uint64_t Val) const {
262 checkInt<17>(Loc, Val, Type);281 checkInt<17>(Loc, Val, Type);
263 write16le(Loc, Val);282 write16le(Loc, Val);
264 break;283 break;
265 default:284 case R_386_32:
285 case R_386_GLOB_DAT:
286 case R_386_GOT32:
287 case R_386_GOT32X:
288 case R_386_GOTOFF:
289 case R_386_GOTPC:
290 case R_386_PC32:
291 case R_386_PLT32:
292 case R_386_RELATIVE:
293 case R_386_TLS_DTPMOD32:
294 case R_386_TLS_DTPOFF32:
295 case R_386_TLS_GD:
296 case R_386_TLS_GOTIE:
297 case R_386_TLS_IE:
298 case R_386_TLS_LDM:
299 case R_386_TLS_LDO_32:
300 case R_386_TLS_LE:
301 case R_386_TLS_LE_32:
302 case R_386_TLS_TPOFF:
303 case R_386_TLS_TPOFF32:
266 checkInt<32>(Loc, Val, Type);304 checkInt<32>(Loc, Val, Type);
267 write32le(Loc, Val);305 write32le(Loc, Val);
306 break;
307 default:
308 error(getErrorLocation(Loc) + "unrecognized reloc " + Twine(Type));
268 }309 }
269}310}
270311
271void X86::relaxTlsGdToLe(uint8_t *Loc, uint32_t Type, uint64_t Val) const {312void X86::relaxTlsGdToLe(uint8_t *Loc, RelType Type, uint64_t Val) const {
272 // Convert313 // Convert
273 // leal x@tlsgd(, %ebx, 1),314 // leal x@tlsgd(, %ebx, 1),
274 // call __tls_get_addr@plt315 // call __tls_get_addr@plt
...@@ -277,13 +318,13 @@ void X86::relaxTlsGdToLe(uint8_t *Loc, uint32_t Type, uint64_t Val) const {...@@ -277,13 +318,13 @@ void X86::relaxTlsGdToLe(uint8_t *Loc, uint32_t Type, uint64_t Val) const {
277 // subl $x@ntpoff,%eax318 // subl $x@ntpoff,%eax
278 const uint8_t Inst[] = {319 const uint8_t Inst[] = {
279 0x65, 0xa1, 0x00, 0x00, 0x00, 0x00, // movl %gs:0, %eax320 0x65, 0xa1, 0x00, 0x00, 0x00, 0x00, // movl %gs:0, %eax
280 0x81, 0xe8, 0x00, 0x00, 0x00, 0x00 // subl 0(%ebx), %eax321 0x81, 0xe8, 0, 0, 0, 0, // subl Val(%ebx), %eax
281 };322 };
282 memcpy(Loc - 3, Inst, sizeof(Inst));323 memcpy(Loc - 3, Inst, sizeof(Inst));
283 write32le(Loc + 5, Val);324 write32le(Loc + 5, Val);
284}325}
285326
286void X86::relaxTlsGdToIe(uint8_t *Loc, uint32_t Type, uint64_t Val) const {327void X86::relaxTlsGdToIe(uint8_t *Loc, RelType Type, uint64_t Val) const {
287 // Convert328 // Convert
288 // leal x@tlsgd(, %ebx, 1),329 // leal x@tlsgd(, %ebx, 1),
289 // call __tls_get_addr@plt330 // call __tls_get_addr@plt
...@@ -292,7 +333,7 @@ void X86::relaxTlsGdToIe(uint8_t *Loc, uint32_t Type, uint64_t Val) const {...@@ -292,7 +333,7 @@ void X86::relaxTlsGdToIe(uint8_t *Loc, uint32_t Type, uint64_t Val) const {
292 // addl x@gotntpoff(%ebx), %eax333 // addl x@gotntpoff(%ebx), %eax
293 const uint8_t Inst[] = {334 const uint8_t Inst[] = {
294 0x65, 0xa1, 0x00, 0x00, 0x00, 0x00, // movl %gs:0, %eax335 0x65, 0xa1, 0x00, 0x00, 0x00, 0x00, // movl %gs:0, %eax
295 0x03, 0x83, 0x00, 0x00, 0x00, 0x00 // addl 0(%ebx), %eax336 0x03, 0x83, 0, 0, 0, 0, // addl Val(%ebx), %eax
296 };337 };
297 memcpy(Loc - 3, Inst, sizeof(Inst));338 memcpy(Loc - 3, Inst, sizeof(Inst));
298 write32le(Loc + 5, Val);339 write32le(Loc + 5, Val);
...@@ -300,7 +341,7 @@ void X86::relaxTlsGdToIe(uint8_t *Loc, uint32_t Type, uint64_t Val) const {...@@ -300,7 +341,7 @@ void X86::relaxTlsGdToIe(uint8_t *Loc, uint32_t Type, uint64_t Val) const {
300341
301// In some conditions, relocations can be optimized to avoid using GOT.342// In some conditions, relocations can be optimized to avoid using GOT.
302// This function does that for Initial Exec to Local Exec case.343// This function does that for Initial Exec to Local Exec case.
303void X86::relaxTlsIeToLe(uint8_t *Loc, uint32_t Type, uint64_t Val) const {344void X86::relaxTlsIeToLe(uint8_t *Loc, RelType Type, uint64_t Val) const {
304 // Ulrich's document section 6.2 says that @gotntpoff can345 // Ulrich's document section 6.2 says that @gotntpoff can
305 // be used with MOVL or ADDL instructions.346 // be used with MOVL or ADDL instructions.
306 // @indntpoff is similar to @gotntpoff, but for use in347 // @indntpoff is similar to @gotntpoff, but for use in
...@@ -337,7 +378,7 @@ void X86::relaxTlsIeToLe(uint8_t *Loc, uint32_t Type, uint64_t Val) const {...@@ -337,7 +378,7 @@ void X86::relaxTlsIeToLe(uint8_t *Loc, uint32_t Type, uint64_t Val) const {
337 write32le(Loc, Val);378 write32le(Loc, Val);
338}379}
339380
340void X86::relaxTlsLdToLe(uint8_t *Loc, uint32_t Type, uint64_t Val) const {381void X86::relaxTlsLdToLe(uint8_t *Loc, RelType Type, uint64_t Val) const {
341 if (Type == R_386_TLS_LDO_32) {382 if (Type == R_386_TLS_LDO_32) {
342 write32le(Loc, Val);383 write32le(Loc, Val);
343 return;384 return;
...@@ -353,7 +394,7 @@ void X86::relaxTlsLdToLe(uint8_t *Loc, uint32_t Type, uint64_t Val) const {...@@ -353,7 +394,7 @@ void X86::relaxTlsLdToLe(uint8_t *Loc, uint32_t Type, uint64_t Val) const {
353 const uint8_t Inst[] = {394 const uint8_t Inst[] = {
354 0x65, 0xa1, 0x00, 0x00, 0x00, 0x00, // movl %gs:0,%eax395 0x65, 0xa1, 0x00, 0x00, 0x00, 0x00, // movl %gs:0,%eax
355 0x90, // nop396 0x90, // nop
356 0x8d, 0x74, 0x26, 0x00 // leal 0(%esi,1),%esi397 0x8d, 0x74, 0x26, 0x00, // leal 0(%esi,1),%esi
357 };398 };
358 memcpy(Loc - 2, Inst, sizeof(Inst));399 memcpy(Loc - 2, Inst, sizeof(Inst));
359}400}
deps/lld/ELF/Arch/X86_64.cpp+33-35
...@@ -7,11 +7,11 @@...@@ -7,11 +7,11 @@
7//7//
8//===----------------------------------------------------------------------===//8//===----------------------------------------------------------------------===//
99
10#include "Error.h"
11#include "InputFiles.h"10#include "InputFiles.h"
12#include "Symbols.h"11#include "Symbols.h"
13#include "SyntheticSections.h"12#include "SyntheticSections.h"
14#include "Target.h"13#include "Target.h"
14#include "lld/Common/ErrorHandler.h"
15#include "llvm/Object/ELF.h"15#include "llvm/Object/ELF.h"
16#include "llvm/Support/Endian.h"16#include "llvm/Support/Endian.h"
1717
...@@ -26,23 +26,23 @@ namespace {...@@ -26,23 +26,23 @@ namespace {
26template <class ELFT> class X86_64 final : public TargetInfo {26template <class ELFT> class X86_64 final : public TargetInfo {
27public:27public:
28 X86_64();28 X86_64();
29 RelExpr getRelExpr(uint32_t Type, const SymbolBody &S,29 RelExpr getRelExpr(RelType Type, const Symbol &S,
30 const uint8_t *Loc) const override;30 const uint8_t *Loc) const override;
31 bool isPicRel(uint32_t Type) const override;31 bool isPicRel(RelType Type) const override;
32 void writeGotPltHeader(uint8_t *Buf) const override;32 void writeGotPltHeader(uint8_t *Buf) const override;
33 void writeGotPlt(uint8_t *Buf, const SymbolBody &S) const override;33 void writeGotPlt(uint8_t *Buf, const Symbol &S) const override;
34 void writePltHeader(uint8_t *Buf) const override;34 void writePltHeader(uint8_t *Buf) const override;
35 void writePlt(uint8_t *Buf, uint64_t GotPltEntryAddr, uint64_t PltEntryAddr,35 void writePlt(uint8_t *Buf, uint64_t GotPltEntryAddr, uint64_t PltEntryAddr,
36 int32_t Index, unsigned RelOff) const override;36 int32_t Index, unsigned RelOff) const override;
37 void relocateOne(uint8_t *Loc, uint32_t Type, uint64_t Val) const override;37 void relocateOne(uint8_t *Loc, RelType Type, uint64_t Val) const override;
3838
39 RelExpr adjustRelaxExpr(uint32_t Type, const uint8_t *Data,39 RelExpr adjustRelaxExpr(RelType Type, const uint8_t *Data,
40 RelExpr Expr) const override;40 RelExpr Expr) const override;
41 void relaxGot(uint8_t *Loc, uint64_t Val) const override;41 void relaxGot(uint8_t *Loc, uint64_t Val) const override;
42 void relaxTlsGdToIe(uint8_t *Loc, uint32_t Type, uint64_t Val) const override;42 void relaxTlsGdToIe(uint8_t *Loc, RelType Type, uint64_t Val) const override;
43 void relaxTlsGdToLe(uint8_t *Loc, uint32_t Type, uint64_t Val) const override;43 void relaxTlsGdToLe(uint8_t *Loc, RelType Type, uint64_t Val) const override;
44 void relaxTlsIeToLe(uint8_t *Loc, uint32_t Type, uint64_t Val) const override;44 void relaxTlsIeToLe(uint8_t *Loc, RelType Type, uint64_t Val) const override;
45 void relaxTlsLdToLe(uint8_t *Loc, uint32_t Type, uint64_t Val) const override;45 void relaxTlsLdToLe(uint8_t *Loc, RelType Type, uint64_t Val) const override;
4646
47private:47private:
48 void relaxGotNoPic(uint8_t *Loc, uint64_t Val, uint8_t Op,48 void relaxGotNoPic(uint8_t *Loc, uint64_t Val, uint8_t Op,
...@@ -73,7 +73,7 @@ template <class ELFT> X86_64<ELFT>::X86_64() {...@@ -73,7 +73,7 @@ template <class ELFT> X86_64<ELFT>::X86_64() {
73}73}
7474
75template <class ELFT>75template <class ELFT>
76RelExpr X86_64<ELFT>::getRelExpr(uint32_t Type, const SymbolBody &S,76RelExpr X86_64<ELFT>::getRelExpr(RelType Type, const Symbol &S,
77 const uint8_t *Loc) const {77 const uint8_t *Loc) const {
78 switch (Type) {78 switch (Type) {
79 case R_X86_64_8:79 case R_X86_64_8:
...@@ -109,8 +109,7 @@ RelExpr X86_64<ELFT>::getRelExpr(uint32_t Type, const SymbolBody &S,...@@ -109,8 +109,7 @@ RelExpr X86_64<ELFT>::getRelExpr(uint32_t Type, const SymbolBody &S,
109 case R_X86_64_NONE:109 case R_X86_64_NONE:
110 return R_NONE;110 return R_NONE;
111 default:111 default:
112 error(toString(S.File) + ": unknown relocation type: " + toString(Type));112 return R_INVALID;
113 return R_HINT;
114 }113 }
115}114}
116115
...@@ -123,16 +122,16 @@ template <class ELFT> void X86_64<ELFT>::writeGotPltHeader(uint8_t *Buf) const {...@@ -123,16 +122,16 @@ template <class ELFT> void X86_64<ELFT>::writeGotPltHeader(uint8_t *Buf) const {
123}122}
124123
125template <class ELFT>124template <class ELFT>
126void X86_64<ELFT>::writeGotPlt(uint8_t *Buf, const SymbolBody &S) const {125void X86_64<ELFT>::writeGotPlt(uint8_t *Buf, const Symbol &S) const {
127 // See comments in X86TargetInfo::writeGotPlt.126 // See comments in X86::writeGotPlt.
128 write32le(Buf, S.getPltVA() + 6);127 write32le(Buf, S.getPltVA() + 6);
129}128}
130129
131template <class ELFT> void X86_64<ELFT>::writePltHeader(uint8_t *Buf) const {130template <class ELFT> void X86_64<ELFT>::writePltHeader(uint8_t *Buf) const {
132 const uint8_t PltData[] = {131 const uint8_t PltData[] = {
133 0xff, 0x35, 0x00, 0x00, 0x00, 0x00, // pushq GOTPLT+8(%rip)132 0xff, 0x35, 0, 0, 0, 0, // pushq GOTPLT+8(%rip)
134 0xff, 0x25, 0x00, 0x00, 0x00, 0x00, // jmp *GOTPLT+16(%rip)133 0xff, 0x25, 0, 0, 0, 0, // jmp *GOTPLT+16(%rip)
135 0x0f, 0x1f, 0x40, 0x00 // nop134 0x0f, 0x1f, 0x40, 0x00, // nop
136 };135 };
137 memcpy(Buf, PltData, sizeof(PltData));136 memcpy(Buf, PltData, sizeof(PltData));
138 uint64_t GotPlt = InX::GotPlt->getVA();137 uint64_t GotPlt = InX::GotPlt->getVA();
...@@ -146,9 +145,9 @@ void X86_64<ELFT>::writePlt(uint8_t *Buf, uint64_t GotPltEntryAddr,...@@ -146,9 +145,9 @@ void X86_64<ELFT>::writePlt(uint8_t *Buf, uint64_t GotPltEntryAddr,
146 uint64_t PltEntryAddr, int32_t Index,145 uint64_t PltEntryAddr, int32_t Index,
147 unsigned RelOff) const {146 unsigned RelOff) const {
148 const uint8_t Inst[] = {147 const uint8_t Inst[] = {
149 0xff, 0x25, 0x00, 0x00, 0x00, 0x00, // jmpq *got(%rip)148 0xff, 0x25, 0, 0, 0, 0, // jmpq *got(%rip)
150 0x68, 0x00, 0x00, 0x00, 0x00, // pushq <relocation index>149 0x68, 0, 0, 0, 0, // pushq <relocation index>
151 0xe9, 0x00, 0x00, 0x00, 0x00 // jmpq plt[0]150 0xe9, 0, 0, 0, 0, // jmpq plt[0]
152 };151 };
153 memcpy(Buf, Inst, sizeof(Inst));152 memcpy(Buf, Inst, sizeof(Inst));
154153
...@@ -157,13 +156,13 @@ void X86_64<ELFT>::writePlt(uint8_t *Buf, uint64_t GotPltEntryAddr,...@@ -157,13 +156,13 @@ void X86_64<ELFT>::writePlt(uint8_t *Buf, uint64_t GotPltEntryAddr,
157 write32le(Buf + 12, -Index * PltEntrySize - PltHeaderSize - 16);156 write32le(Buf + 12, -Index * PltEntrySize - PltHeaderSize - 16);
158}157}
159158
160template <class ELFT> bool X86_64<ELFT>::isPicRel(uint32_t Type) const {159template <class ELFT> bool X86_64<ELFT>::isPicRel(RelType Type) const {
161 return Type != R_X86_64_PC32 && Type != R_X86_64_32 &&160 return Type != R_X86_64_PC32 && Type != R_X86_64_32 &&
162 Type != R_X86_64_TPOFF32;161 Type != R_X86_64_TPOFF32;
163}162}
164163
165template <class ELFT>164template <class ELFT>
166void X86_64<ELFT>::relaxTlsGdToLe(uint8_t *Loc, uint32_t Type,165void X86_64<ELFT>::relaxTlsGdToLe(uint8_t *Loc, RelType Type,
167 uint64_t Val) const {166 uint64_t Val) const {
168 // Convert167 // Convert
169 // .byte 0x66168 // .byte 0x66
...@@ -176,7 +175,7 @@ void X86_64<ELFT>::relaxTlsGdToLe(uint8_t *Loc, uint32_t Type,...@@ -176,7 +175,7 @@ void X86_64<ELFT>::relaxTlsGdToLe(uint8_t *Loc, uint32_t Type,
176 // lea x@tpoff,%rax175 // lea x@tpoff,%rax
177 const uint8_t Inst[] = {176 const uint8_t Inst[] = {
178 0x64, 0x48, 0x8b, 0x04, 0x25, 0x00, 0x00, 0x00, 0x00, // mov %fs:0x0,%rax177 0x64, 0x48, 0x8b, 0x04, 0x25, 0x00, 0x00, 0x00, 0x00, // mov %fs:0x0,%rax
179 0x48, 0x8d, 0x80, 0x00, 0x00, 0x00, 0x00 // lea x@tpoff,%rax178 0x48, 0x8d, 0x80, 0, 0, 0, 0, // lea x@tpoff,%rax
180 };179 };
181 memcpy(Loc - 4, Inst, sizeof(Inst));180 memcpy(Loc - 4, Inst, sizeof(Inst));
182181
...@@ -186,7 +185,7 @@ void X86_64<ELFT>::relaxTlsGdToLe(uint8_t *Loc, uint32_t Type,...@@ -186,7 +185,7 @@ void X86_64<ELFT>::relaxTlsGdToLe(uint8_t *Loc, uint32_t Type,
186}185}
187186
188template <class ELFT>187template <class ELFT>
189void X86_64<ELFT>::relaxTlsGdToIe(uint8_t *Loc, uint32_t Type,188void X86_64<ELFT>::relaxTlsGdToIe(uint8_t *Loc, RelType Type,
190 uint64_t Val) const {189 uint64_t Val) const {
191 // Convert190 // Convert
192 // .byte 0x66191 // .byte 0x66
...@@ -199,7 +198,7 @@ void X86_64<ELFT>::relaxTlsGdToIe(uint8_t *Loc, uint32_t Type,...@@ -199,7 +198,7 @@ void X86_64<ELFT>::relaxTlsGdToIe(uint8_t *Loc, uint32_t Type,
199 // addq x@tpoff,%rax198 // addq x@tpoff,%rax
200 const uint8_t Inst[] = {199 const uint8_t Inst[] = {
201 0x64, 0x48, 0x8b, 0x04, 0x25, 0x00, 0x00, 0x00, 0x00, // mov %fs:0x0,%rax200 0x64, 0x48, 0x8b, 0x04, 0x25, 0x00, 0x00, 0x00, 0x00, // mov %fs:0x0,%rax
202 0x48, 0x03, 0x05, 0x00, 0x00, 0x00, 0x00 // addq x@tpoff,%rax201 0x48, 0x03, 0x05, 0, 0, 0, 0, // addq x@tpoff,%rax
203 };202 };
204 memcpy(Loc - 4, Inst, sizeof(Inst));203 memcpy(Loc - 4, Inst, sizeof(Inst));
205204
...@@ -211,7 +210,7 @@ void X86_64<ELFT>::relaxTlsGdToIe(uint8_t *Loc, uint32_t Type,...@@ -211,7 +210,7 @@ void X86_64<ELFT>::relaxTlsGdToIe(uint8_t *Loc, uint32_t Type,
211// In some conditions, R_X86_64_GOTTPOFF relocation can be optimized to210// In some conditions, R_X86_64_GOTTPOFF relocation can be optimized to
212// R_X86_64_TPOFF32 so that it does not use GOT.211// R_X86_64_TPOFF32 so that it does not use GOT.
213template <class ELFT>212template <class ELFT>
214void X86_64<ELFT>::relaxTlsIeToLe(uint8_t *Loc, uint32_t Type,213void X86_64<ELFT>::relaxTlsIeToLe(uint8_t *Loc, RelType Type,
215 uint64_t Val) const {214 uint64_t Val) const {
216 uint8_t *Inst = Loc - 3;215 uint8_t *Inst = Loc - 3;
217 uint8_t Reg = Loc[-1] >> 3;216 uint8_t Reg = Loc[-1] >> 3;
...@@ -254,7 +253,7 @@ void X86_64<ELFT>::relaxTlsIeToLe(uint8_t *Loc, uint32_t Type,...@@ -254,7 +253,7 @@ void X86_64<ELFT>::relaxTlsIeToLe(uint8_t *Loc, uint32_t Type,
254}253}
255254
256template <class ELFT>255template <class ELFT>
257void X86_64<ELFT>::relaxTlsLdToLe(uint8_t *Loc, uint32_t Type,256void X86_64<ELFT>::relaxTlsLdToLe(uint8_t *Loc, RelType Type,
258 uint64_t Val) const {257 uint64_t Val) const {
259 // Convert258 // Convert
260 // leaq bar@tlsld(%rip), %rdi259 // leaq bar@tlsld(%rip), %rdi
...@@ -275,16 +274,15 @@ void X86_64<ELFT>::relaxTlsLdToLe(uint8_t *Loc, uint32_t Type,...@@ -275,16 +274,15 @@ void X86_64<ELFT>::relaxTlsLdToLe(uint8_t *Loc, uint32_t Type,
275 }274 }
276275
277 const uint8_t Inst[] = {276 const uint8_t Inst[] = {
278 0x66, 0x66, // .word 0x6666277 0x66, 0x66, // .word 0x6666
279 0x66, // .byte 0x66278 0x66, // .byte 0x66
280 0x64, 0x48, 0x8b, 0x04, 0x25, 0x00, 0x00, 0x00, 0x00 // mov %fs:0,%rax279 0x64, 0x48, 0x8b, 0x04, 0x25, 0x00, 0x00, 0x00, 0x00, // mov %fs:0,%rax
281 };280 };
282 memcpy(Loc - 3, Inst, sizeof(Inst));281 memcpy(Loc - 3, Inst, sizeof(Inst));
283}282}
284283
285template <class ELFT>284template <class ELFT>
286void X86_64<ELFT>::relocateOne(uint8_t *Loc, uint32_t Type,285void X86_64<ELFT>::relocateOne(uint8_t *Loc, RelType Type, uint64_t Val) const {
287 uint64_t Val) const {
288 switch (Type) {286 switch (Type) {
289 case R_X86_64_8:287 case R_X86_64_8:
290 checkUInt<8>(Loc, Val, Type);288 checkUInt<8>(Loc, Val, Type);
...@@ -323,12 +321,12 @@ void X86_64<ELFT>::relocateOne(uint8_t *Loc, uint32_t Type,...@@ -323,12 +321,12 @@ void X86_64<ELFT>::relocateOne(uint8_t *Loc, uint32_t Type,
323 write64le(Loc, Val);321 write64le(Loc, Val);
324 break;322 break;
325 default:323 default:
326 llvm_unreachable("unexpected relocation");324 error(getErrorLocation(Loc) + "unrecognized reloc " + Twine(Type));
327 }325 }
328}326}
329327
330template <class ELFT>328template <class ELFT>
331RelExpr X86_64<ELFT>::adjustRelaxExpr(uint32_t Type, const uint8_t *Data,329RelExpr X86_64<ELFT>::adjustRelaxExpr(RelType Type, const uint8_t *Data,
332 RelExpr RelExpr) const {330 RelExpr RelExpr) const {
333 if (Type != R_X86_64_GOTPCRELX && Type != R_X86_64_REX_GOTPCRELX)331 if (Type != R_X86_64_GOTPCRELX && Type != R_X86_64_REX_GOTPCRELX)
334 return RelExpr;332 return RelExpr;
deps/lld/ELF/Bits.h created+35
...@@ -0,0 +1,35 @@
1//===- Bits.h ---------------------------------------------------*- C++ -*-===//
2//
3// The LLVM Linker
4//
5// This file is distributed under the University of Illinois Open Source
6// License. See LICENSE.TXT for details.
7//
8//===----------------------------------------------------------------------===//
9
10#ifndef LLD_ELF_BITS_H
11#define LLD_ELF_BITS_H
12
13#include "Config.h"
14#include "llvm/Support/Endian.h"
15
16namespace lld {
17namespace elf {
18
19inline uint64_t readUint(uint8_t *Buf) {
20 if (Config->Is64)
21 return llvm::support::endian::read64(Buf, Config->Endianness);
22 return llvm::support::endian::read32(Buf, Config->Endianness);
23}
24
25inline void writeUint(uint8_t *Buf, uint64_t Val) {
26 if (Config->Is64)
27 llvm::support::endian::write64(Buf, Val, Config->Endianness);
28 else
29 llvm::support::endian::write32(Buf, Val, Config->Endianness);
30}
31
32} // namespace elf
33} // namespace lld
34
35#endif
deps/lld/ELF/CMakeLists.txt+3-14
...@@ -7,6 +7,7 @@ if(NOT LLD_BUILT_STANDALONE)...@@ -7,6 +7,7 @@ if(NOT LLD_BUILT_STANDALONE)
7endif()7endif()
88
9add_lld_library(lldELF9add_lld_library(lldELF
10 AArch64ErrataFix.cpp
10 Arch/AArch64.cpp11 Arch/AArch64.cpp
11 Arch/AMDGPU.cpp12 Arch/AMDGPU.cpp
12 Arch/ARM.cpp13 Arch/ARM.cpp
...@@ -21,7 +22,6 @@ add_lld_library(lldELF...@@ -21,7 +22,6 @@ add_lld_library(lldELF
21 Driver.cpp22 Driver.cpp
22 DriverUtils.cpp23 DriverUtils.cpp
23 EhFrame.cpp24 EhFrame.cpp
24 Error.cpp
25 Filesystem.cpp25 Filesystem.cpp
26 GdbIndex.cpp26 GdbIndex.cpp
27 ICF.cpp27 ICF.cpp
...@@ -45,28 +45,17 @@ add_lld_library(lldELF...@@ -45,28 +45,17 @@ add_lld_library(lldELF
4545
46 LINK_COMPONENTS46 LINK_COMPONENTS
47 ${LLVM_TARGETS_TO_BUILD}47 ${LLVM_TARGETS_TO_BUILD}
48 Analysis
49 BinaryFormat48 BinaryFormat
50 BitReader
51 BitWriter
52 Codegen
53 Core49 Core
54 DebugInfoDWARF50 DebugInfoDWARF
55 Demangle
56 IPO
57 Linker
58 LTO51 LTO
52 MC
59 Object53 Object
60 Option54 Option
61 Passes
62 MC
63 Support55 Support
64 Target
65 TransformUtils
6656
67 LINK_LIBS57 LINK_LIBS
68 lldConfig58 lldCommon
69 lldCore
70 ${LLVM_PTHREAD_LIB}59 ${LLVM_PTHREAD_LIB}
7160
72 DEPENDS61 DEPENDS
deps/lld/ELF/Config.h+23-17
...@@ -24,7 +24,6 @@ namespace lld {...@@ -24,7 +24,6 @@ namespace lld {
24namespace elf {24namespace elf {
2525
26class InputFile;26class InputFile;
27struct Symbol;
2827
29enum ELFKind {28enum ELFKind {
30 ELFNoneKind,29 ELFNoneKind,
...@@ -44,7 +43,10 @@ enum class DiscardPolicy { Default, All, Locals, None };...@@ -44,7 +43,10 @@ enum class DiscardPolicy { Default, All, Locals, None };
44enum class StripPolicy { None, All, Debug };43enum class StripPolicy { None, All, Debug };
4544
46// For --unresolved-symbols.45// For --unresolved-symbols.
47enum class UnresolvedPolicy { ReportError, Warn, WarnAll, Ignore, IgnoreAll };46enum class UnresolvedPolicy { ReportError, Warn, Ignore, IgnoreAll };
47
48// For --orphan-handling.
49enum class OrphanHandlingPolicy { Place, Warn, Error };
4850
49// For --sort-section and linkerscript sorting rules.51// For --sort-section and linkerscript sorting rules.
50enum class SortSectionPolicy { Default, None, Alignment, Name, Priority };52enum class SortSectionPolicy { Default, None, Alignment, Name, Priority };
...@@ -67,21 +69,15 @@ struct VersionDefinition {...@@ -67,21 +69,15 @@ struct VersionDefinition {
67 size_t NameOff = 0; // Offset in the string table69 size_t NameOff = 0; // Offset in the string table
68};70};
6971
70// Structure for mapping renamed symbols
71struct RenamedSymbol {
72 Symbol *Target;
73 uint8_t OriginalBinding;
74};
75
76// This struct contains the global configuration for the linker.72// This struct contains the global configuration for the linker.
77// Most fields are direct mapping from the command line options73// Most fields are direct mapping from the command line options
78// and such fields have the same name as the corresponding options.74// and such fields have the same name as the corresponding options.
79// Most fields are initialized by the driver.75// Most fields are initialized by the driver.
80struct Configuration {76struct Configuration {
81 InputFile *FirstElf = nullptr;
82 uint8_t OSABI = 0;77 uint8_t OSABI = 0;
83 llvm::CachePruningPolicy ThinLTOCachePolicy;78 llvm::CachePruningPolicy ThinLTOCachePolicy;
84 llvm::StringMap<uint64_t> SectionStartMap;79 llvm::StringMap<uint64_t> SectionStartMap;
80 llvm::StringRef Chroot;
85 llvm::StringRef DynamicLinker;81 llvm::StringRef DynamicLinker;
86 llvm::StringRef Entry;82 llvm::StringRef Entry;
87 llvm::StringRef Emulation;83 llvm::StringRef Emulation;
...@@ -103,15 +99,18 @@ struct Configuration {...@@ -103,15 +99,18 @@ struct Configuration {
103 std::vector<llvm::StringRef> SearchPaths;99 std::vector<llvm::StringRef> SearchPaths;
104 std::vector<llvm::StringRef> SymbolOrderingFile;100 std::vector<llvm::StringRef> SymbolOrderingFile;
105 std::vector<llvm::StringRef> Undefined;101 std::vector<llvm::StringRef> Undefined;
102 std::vector<SymbolVersion> DynamicList;
106 std::vector<SymbolVersion> VersionScriptGlobals;103 std::vector<SymbolVersion> VersionScriptGlobals;
107 std::vector<SymbolVersion> VersionScriptLocals;104 std::vector<SymbolVersion> VersionScriptLocals;
108 std::vector<uint8_t> BuildIdVector;105 std::vector<uint8_t> BuildIdVector;
109 llvm::MapVector<Symbol *, RenamedSymbol> RenamedSymbols;
110 bool AllowMultipleDefinition;106 bool AllowMultipleDefinition;
107 bool AndroidPackDynRelocs = false;
108 bool ARMHasBlx = false;
109 bool ARMHasMovtMovw = false;
110 bool ARMJ1J2BranchEncoding = false;
111 bool AsNeeded = false;111 bool AsNeeded = false;
112 bool Bsymbolic;112 bool Bsymbolic;
113 bool BsymbolicFunctions;113 bool BsymbolicFunctions;
114 bool ColorDiagnostics = false;
115 bool CompressDebugSections;114 bool CompressDebugSections;
116 bool DefineCommon;115 bool DefineCommon;
117 bool Demangle = true;116 bool Demangle = true;
...@@ -120,14 +119,19 @@ struct Configuration {...@@ -120,14 +119,19 @@ struct Configuration {
120 bool EmitRelocs;119 bool EmitRelocs;
121 bool EnableNewDtags;120 bool EnableNewDtags;
122 bool ExportDynamic;121 bool ExportDynamic;
123 bool FatalWarnings;122 bool FixCortexA53Errata843419;
124 bool GcSections;123 bool GcSections;
125 bool GdbIndex;124 bool GdbIndex;
126 bool GnuHash;125 bool GnuHash = false;
126 bool HasDynamicList = false;
127 bool HasDynSymTab;
127 bool ICF;128 bool ICF;
129 bool ICFData;
130 bool MergeArmExidx;
128 bool MipsN32Abi = false;131 bool MipsN32Abi = false;
129 bool NoGnuUnique;132 bool NoGnuUnique;
130 bool NoUndefinedVersion;133 bool NoUndefinedVersion;
134 bool NoinhibitExec;
131 bool Nostdlib;135 bool Nostdlib;
132 bool OFormatBinary;136 bool OFormatBinary;
133 bool Omagic;137 bool Omagic;
...@@ -139,9 +143,8 @@ struct Configuration {...@@ -139,9 +143,8 @@ struct Configuration {
139 bool SingleRoRx;143 bool SingleRoRx;
140 bool Shared;144 bool Shared;
141 bool Static = false;145 bool Static = false;
142 bool SysvHash;146 bool SysvHash = false;
143 bool Target1Rel;147 bool Target1Rel;
144 bool Threads;
145 bool Trace;148 bool Trace;
146 bool Verbose;149 bool Verbose;
147 bool WarnCommon;150 bool WarnCommon;
...@@ -159,6 +162,7 @@ struct Configuration {...@@ -159,6 +162,7 @@ struct Configuration {
159 bool ExitEarly;162 bool ExitEarly;
160 bool ZWxneeded;163 bool ZWxneeded;
161 DiscardPolicy Discard;164 DiscardPolicy Discard;
165 OrphanHandlingPolicy OrphanHandling;
162 SortSectionPolicy SortSection;166 SortSectionPolicy SortSection;
163 StripPolicy Strip;167 StripPolicy Strip;
164 UnresolvedPolicy UnresolvedSymbols;168 UnresolvedPolicy UnresolvedSymbols;
...@@ -167,8 +171,7 @@ struct Configuration {...@@ -167,8 +171,7 @@ struct Configuration {
167 ELFKind EKind = ELFNoneKind;171 ELFKind EKind = ELFNoneKind;
168 uint16_t DefaultSymbolVersion = llvm::ELF::VER_NDX_GLOBAL;172 uint16_t DefaultSymbolVersion = llvm::ELF::VER_NDX_GLOBAL;
169 uint16_t EMachine = llvm::ELF::EM_NONE;173 uint16_t EMachine = llvm::ELF::EM_NONE;
170 uint64_t ErrorLimit = 20;174 llvm::Optional<uint64_t> ImageBase;
171 uint64_t ImageBase;
172 uint64_t MaxPageSize;175 uint64_t MaxPageSize;
173 uint64_t ZStackSize;176 uint64_t ZStackSize;
174 unsigned LTOPartitions;177 unsigned LTOPartitions;
...@@ -206,6 +209,9 @@ struct Configuration {...@@ -206,6 +209,9 @@ struct Configuration {
206 // if that's true.)209 // if that's true.)
207 bool IsMips64EL;210 bool IsMips64EL;
208211
212 // Holds set of ELF header flags for the target.
213 uint32_t EFlags = 0;
214
209 // The ELF spec defines two types of relocation table entries, RELA and215 // The ELF spec defines two types of relocation table entries, RELA and
210 // REL. RELA is a triplet of (offset, info, addend) while REL is a216 // REL. RELA is a triplet of (offset, info, addend) while REL is a
211 // tuple of (offset, info). Addends for REL are implicit and read from217 // tuple of (offset, info). Addends for REL are implicit and read from
deps/lld/ELF/Driver.cpp+277-211
...@@ -25,23 +25,25 @@...@@ -25,23 +25,25 @@
2525
26#include "Driver.h"26#include "Driver.h"
27#include "Config.h"27#include "Config.h"
28#include "Error.h"
29#include "Filesystem.h"28#include "Filesystem.h"
30#include "ICF.h"29#include "ICF.h"
31#include "InputFiles.h"30#include "InputFiles.h"
32#include "InputSection.h"31#include "InputSection.h"
33#include "LinkerScript.h"32#include "LinkerScript.h"
34#include "Memory.h"
35#include "OutputSections.h"33#include "OutputSections.h"
36#include "ScriptParser.h"34#include "ScriptParser.h"
37#include "Strings.h"35#include "Strings.h"
38#include "SymbolTable.h"36#include "SymbolTable.h"
37#include "Symbols.h"
39#include "SyntheticSections.h"38#include "SyntheticSections.h"
40#include "Target.h"39#include "Target.h"
41#include "Threads.h"
42#include "Writer.h"40#include "Writer.h"
43#include "lld/Config/Version.h"41#include "lld/Common/Args.h"
44#include "lld/Driver/Driver.h"42#include "lld/Common/Driver.h"
43#include "lld/Common/ErrorHandler.h"
44#include "lld/Common/Memory.h"
45#include "lld/Common/Threads.h"
46#include "lld/Common/Version.h"
45#include "llvm/ADT/StringExtras.h"47#include "llvm/ADT/StringExtras.h"
46#include "llvm/ADT/StringSwitch.h"48#include "llvm/ADT/StringSwitch.h"
47#include "llvm/Support/CommandLine.h"49#include "llvm/Support/CommandLine.h"
...@@ -64,27 +66,40 @@ using namespace lld::elf;...@@ -64,27 +66,40 @@ using namespace lld::elf;
64Configuration *elf::Config;66Configuration *elf::Config;
65LinkerDriver *elf::Driver;67LinkerDriver *elf::Driver;
6668
67BumpPtrAllocator elf::BAlloc;
68StringSaver elf::Saver{BAlloc};
69std::vector<SpecificAllocBase *> elf::SpecificAllocBase::Instances;
70
71static void setConfigs();69static void setConfigs();
7270
73bool elf::link(ArrayRef<const char *> Args, bool CanExitEarly,71bool elf::link(ArrayRef<const char *> Args, bool CanExitEarly,
74 raw_ostream &Error) {72 raw_ostream &Error) {
75 ErrorCount = 0;73 errorHandler().LogName = Args[0];
76 ErrorOS = &Error;74 errorHandler().ErrorLimitExceededMsg =
75 "too many errors emitted, stopping now (use "
76 "-error-limit=0 to see all errors)";
77 errorHandler().ErrorOS = &Error;
78 errorHandler().ColorDiagnostics = Error.has_colors();
77 InputSections.clear();79 InputSections.clear();
80 OutputSections.clear();
78 Tar = nullptr;81 Tar = nullptr;
82 BinaryFiles.clear();
83 BitcodeFiles.clear();
84 ObjectFiles.clear();
85 SharedFiles.clear();
7986
80 Config = make<Configuration>();87 Config = make<Configuration>();
81 Driver = make<LinkerDriver>();88 Driver = make<LinkerDriver>();
82 Script = make<LinkerScript>();89 Script = make<LinkerScript>();
90 Symtab = make<SymbolTable>();
83 Config->Argv = {Args.begin(), Args.end()};91 Config->Argv = {Args.begin(), Args.end()};
8492
85 Driver->main(Args, CanExitEarly);93 Driver->main(Args, CanExitEarly);
94
95 // Exit immediately if we don't need to return to the caller.
96 // This saves time because the overhead of calling destructors
97 // for all globally-allocated objects is not negligible.
98 if (Config->ExitEarly)
99 exitLld(errorCount() ? 1 : 0);
100
86 freeArena();101 freeArena();
87 return !ErrorCount;102 return !errorCount();
88}103}
89104
90// Parses a linker -m option.105// Parses a linker -m option.
...@@ -112,12 +127,8 @@ static std::tuple<ELFKind, uint16_t, uint8_t> parseEmulation(StringRef Emul) {...@@ -112,12 +127,8 @@ static std::tuple<ELFKind, uint16_t, uint8_t> parseEmulation(StringRef Emul) {
112 .Case("elf_iamcu", {ELF32LEKind, EM_IAMCU})127 .Case("elf_iamcu", {ELF32LEKind, EM_IAMCU})
113 .Default({ELFNoneKind, EM_NONE});128 .Default({ELFNoneKind, EM_NONE});
114129
115 if (Ret.first == ELFNoneKind) {130 if (Ret.first == ELFNoneKind)
116 if (S == "i386pe" || S == "i386pep" || S == "thumb2pe")131 error("unknown emulation: " + Emul);
117 error("Windows targets are not supported on the ELF frontend: " + Emul);
118 else
119 error("unknown emulation: " + Emul);
120 }
121 return std::make_tuple(Ret.first, Ret.second, OSABI);132 return std::make_tuple(Ret.first, Ret.second, OSABI);
122}133}
123134
...@@ -126,19 +137,22 @@ static std::tuple<ELFKind, uint16_t, uint8_t> parseEmulation(StringRef Emul) {...@@ -126,19 +137,22 @@ static std::tuple<ELFKind, uint16_t, uint8_t> parseEmulation(StringRef Emul) {
126std::vector<std::pair<MemoryBufferRef, uint64_t>> static getArchiveMembers(137std::vector<std::pair<MemoryBufferRef, uint64_t>> static getArchiveMembers(
127 MemoryBufferRef MB) {138 MemoryBufferRef MB) {
128 std::unique_ptr<Archive> File =139 std::unique_ptr<Archive> File =
129 check(Archive::create(MB),140 CHECK(Archive::create(MB),
130 MB.getBufferIdentifier() + ": failed to parse archive");141 MB.getBufferIdentifier() + ": failed to parse archive");
131142
132 std::vector<std::pair<MemoryBufferRef, uint64_t>> V;143 std::vector<std::pair<MemoryBufferRef, uint64_t>> V;
133 Error Err = Error::success();144 Error Err = Error::success();
145 bool AddToTar = File->isThin() && Tar;
134 for (const ErrorOr<Archive::Child> &COrErr : File->children(Err)) {146 for (const ErrorOr<Archive::Child> &COrErr : File->children(Err)) {
135 Archive::Child C =147 Archive::Child C =
136 check(COrErr, MB.getBufferIdentifier() +148 CHECK(COrErr, MB.getBufferIdentifier() +
137 ": could not get the child of the archive");149 ": could not get the child of the archive");
138 MemoryBufferRef MBRef =150 MemoryBufferRef MBRef =
139 check(C.getMemoryBufferRef(),151 CHECK(C.getMemoryBufferRef(),
140 MB.getBufferIdentifier() +152 MB.getBufferIdentifier() +
141 ": could not get the buffer for a child of the archive");153 ": could not get the buffer for a child of the archive");
154 if (AddToTar)
155 Tar->append(relativeToRoot(check(C.getFullName())), MBRef.getBuffer());
142 V.push_back(std::make_pair(MBRef, C.getChildOffset()));156 V.push_back(std::make_pair(MBRef, C.getChildOffset()));
143 }157 }
144 if (Err)158 if (Err)
...@@ -179,7 +193,7 @@ void LinkerDriver::addFile(StringRef Path, bool WithLOption) {...@@ -179,7 +193,7 @@ void LinkerDriver::addFile(StringRef Path, bool WithLOption) {
179 }193 }
180194
181 std::unique_ptr<Archive> File =195 std::unique_ptr<Archive> File =
182 check(Archive::create(MBRef), Path + ": failed to parse archive");196 CHECK(Archive::create(MBRef), Path + ": failed to parse archive");
183197
184 // If an archive file has no symbol table, it is likely that a user198 // If an archive file has no symbol table, it is likely that a user
185 // is attempting LTO and using a default ar command that doesn't199 // is attempting LTO and using a default ar command that doesn't
...@@ -187,7 +201,7 @@ void LinkerDriver::addFile(StringRef Path, bool WithLOption) {...@@ -187,7 +201,7 @@ void LinkerDriver::addFile(StringRef Path, bool WithLOption) {
187 // we'll handle it as if it had a symbol table.201 // we'll handle it as if it had a symbol table.
188 if (!File->isEmpty() && !File->hasSymbolTable()) {202 if (!File->isEmpty() && !File->hasSymbolTable()) {
189 for (const auto &P : getArchiveMembers(MBRef))203 for (const auto &P : getArchiveMembers(MBRef))
190 Files.push_back(make<LazyObjectFile>(P.first, Path, P.second));204 Files.push_back(make<LazyObjFile>(P.first, Path, P.second));
191 return;205 return;
192 }206 }
193207
...@@ -216,7 +230,7 @@ void LinkerDriver::addFile(StringRef Path, bool WithLOption) {...@@ -216,7 +230,7 @@ void LinkerDriver::addFile(StringRef Path, bool WithLOption) {
216 return;230 return;
217 default:231 default:
218 if (InLib)232 if (InLib)
219 Files.push_back(make<LazyObjectFile>(MBRef, "", 0));233 Files.push_back(make<LazyObjFile>(MBRef, "", 0));
220 else234 else
221 Files.push_back(createObjectFile(MBRef));235 Files.push_back(createObjectFile(MBRef));
222 }236 }
...@@ -256,6 +270,9 @@ static void checkOptions(opt::InputArgList &Args) {...@@ -256,6 +270,9 @@ static void checkOptions(opt::InputArgList &Args) {
256 if (Config->EMachine == EM_MIPS && Config->GnuHash)270 if (Config->EMachine == EM_MIPS && Config->GnuHash)
257 error("the .gnu.hash section is not compatible with the MIPS target.");271 error("the .gnu.hash section is not compatible with the MIPS target.");
258272
273 if (Config->FixCortexA53Errata843419 && Config->EMachine != EM_AARCH64)
274 error("--fix-cortex-a53-843419 is only supported on AArch64 targets.");
275
259 if (Config->Pie && Config->Shared)276 if (Config->Pie && Config->Shared)
260 error("-shared and -pie may not be used together");277 error("-shared and -pie may not be used together");
261278
...@@ -265,6 +282,9 @@ static void checkOptions(opt::InputArgList &Args) {...@@ -265,6 +282,9 @@ static void checkOptions(opt::InputArgList &Args) {
265 if (!Config->Shared && !Config->AuxiliaryList.empty())282 if (!Config->Shared && !Config->AuxiliaryList.empty())
266 error("-f may not be used without -shared");283 error("-f may not be used without -shared");
267284
285 if (!Config->Relocatable && !Config->DefineCommon)
286 error("-no-define-common not supported in non relocatable output");
287
268 if (Config->Relocatable) {288 if (Config->Relocatable) {
269 if (Config->Shared)289 if (Config->Shared)
270 error("-r and -shared may not be used together");290 error("-r and -shared may not be used together");
...@@ -277,16 +297,6 @@ static void checkOptions(opt::InputArgList &Args) {...@@ -277,16 +297,6 @@ static void checkOptions(opt::InputArgList &Args) {
277 }297 }
278}298}
279299
280static int getInteger(opt::InputArgList &Args, unsigned Key, int Default) {
281 int V = Default;
282 if (auto *Arg = Args.getLastArg(Key)) {
283 StringRef S = Arg->getValue();
284 if (!to_integer(S, V, 10))
285 error(Arg->getSpelling() + ": number expected, but got " + S);
286 }
287 return V;
288}
289
290static const char *getReproduceOption(opt::InputArgList &Args) {300static const char *getReproduceOption(opt::InputArgList &Args) {
291 if (auto *Arg = Args.getLastArg(OPT_reproduce))301 if (auto *Arg = Args.getLastArg(OPT_reproduce))
292 return Arg->getValue();302 return Arg->getValue();
...@@ -300,26 +310,12 @@ static bool hasZOption(opt::InputArgList &Args, StringRef Key) {...@@ -300,26 +310,12 @@ static bool hasZOption(opt::InputArgList &Args, StringRef Key) {
300 return false;310 return false;
301}311}
302312
303static uint64_t getZOptionValue(opt::InputArgList &Args, StringRef Key,
304 uint64_t Default) {
305 for (auto *Arg : Args.filtered(OPT_z)) {
306 std::pair<StringRef, StringRef> KV = StringRef(Arg->getValue()).split('=');
307 if (KV.first == Key) {
308 uint64_t Result = Default;
309 if (!to_integer(KV.second, Result))
310 error("invalid " + Key + ": " + KV.second);
311 return Result;
312 }
313 }
314 return Default;
315}
316
317void LinkerDriver::main(ArrayRef<const char *> ArgsArr, bool CanExitEarly) {313void LinkerDriver::main(ArrayRef<const char *> ArgsArr, bool CanExitEarly) {
318 ELFOptTable Parser;314 ELFOptTable Parser;
319 opt::InputArgList Args = Parser.parse(ArgsArr.slice(1));315 opt::InputArgList Args = Parser.parse(ArgsArr.slice(1));
320316
321 // Interpret this flag early because error() depends on them.317 // Interpret this flag early because error() depends on them.
322 Config->ErrorLimit = getInteger(Args, OPT_error_limit, 20);318 errorHandler().ErrorLimit = args::getInteger(Args, OPT_error_limit, 20);
323319
324 // Handle -help320 // Handle -help
325 if (Args.hasArg(OPT_help)) {321 if (Args.hasArg(OPT_help)) {
...@@ -345,13 +341,15 @@ void LinkerDriver::main(ArrayRef<const char *> ArgsArr, bool CanExitEarly) {...@@ -345,13 +341,15 @@ void LinkerDriver::main(ArrayRef<const char *> ArgsArr, bool CanExitEarly) {
345 if (Args.hasArg(OPT_v) || Args.hasArg(OPT_version))341 if (Args.hasArg(OPT_v) || Args.hasArg(OPT_version))
346 message(getLLDVersion() + " (compatible with GNU linkers)");342 message(getLLDVersion() + " (compatible with GNU linkers)");
347343
348 // ld.bfd always exits after printing out the version string.344 // The behavior of -v or --version is a bit strange, but this is
349 // ld.gold proceeds if a given option is -v. Because gold's behavior345 // needed for compatibility with GNU linkers.
350 // is more permissive than ld.bfd, we chose what gold does here.346 if (Args.hasArg(OPT_v) && !Args.hasArg(OPT_INPUT))
347 return;
351 if (Args.hasArg(OPT_version))348 if (Args.hasArg(OPT_version))
352 return;349 return;
353350
354 Config->ExitEarly = CanExitEarly && !Args.hasArg(OPT_full_shutdown);351 Config->ExitEarly = CanExitEarly && !Args.hasArg(OPT_full_shutdown);
352 errorHandler().ExitEarly = Config->ExitEarly;
355353
356 if (const char *Path = getReproduceOption(Args)) {354 if (const char *Path = getReproduceOption(Args)) {
357 // Note that --reproduce is a debug option so you can ignore it355 // Note that --reproduce is a debug option so you can ignore it
...@@ -375,7 +373,7 @@ void LinkerDriver::main(ArrayRef<const char *> ArgsArr, bool CanExitEarly) {...@@ -375,7 +373,7 @@ void LinkerDriver::main(ArrayRef<const char *> ArgsArr, bool CanExitEarly) {
375 inferMachineType();373 inferMachineType();
376 setConfigs();374 setConfigs();
377 checkOptions(Args);375 checkOptions(Args);
378 if (ErrorCount)376 if (errorCount())
379 return;377 return;
380378
381 switch (Config->EKind) {379 switch (Config->EKind) {
...@@ -396,36 +394,19 @@ void LinkerDriver::main(ArrayRef<const char *> ArgsArr, bool CanExitEarly) {...@@ -396,36 +394,19 @@ void LinkerDriver::main(ArrayRef<const char *> ArgsArr, bool CanExitEarly) {
396 }394 }
397}395}
398396
399static bool getArg(opt::InputArgList &Args, unsigned K1, unsigned K2,
400 bool Default) {
401 if (auto *Arg = Args.getLastArg(K1, K2))
402 return Arg->getOption().getID() == K1;
403 return Default;
404}
405
406static std::vector<StringRef> getArgs(opt::InputArgList &Args, int Id) {
407 std::vector<StringRef> V;
408 for (auto *Arg : Args.filtered(Id))
409 V.push_back(Arg->getValue());
410 return V;
411}
412
413static std::string getRpath(opt::InputArgList &Args) {397static std::string getRpath(opt::InputArgList &Args) {
414 std::vector<StringRef> V = getArgs(Args, OPT_rpath);398 std::vector<StringRef> V = args::getStrings(Args, OPT_rpath);
415 return llvm::join(V.begin(), V.end(), ":");399 return llvm::join(V.begin(), V.end(), ":");
416}400}
417401
418// Determines what we should do if there are remaining unresolved402// Determines what we should do if there are remaining unresolved
419// symbols after the name resolution.403// symbols after the name resolution.
420static UnresolvedPolicy getUnresolvedSymbolPolicy(opt::InputArgList &Args) {404static UnresolvedPolicy getUnresolvedSymbolPolicy(opt::InputArgList &Args) {
421 // -noinhibit-exec or -r imply some default values.
422 if (Args.hasArg(OPT_noinhibit_exec))
423 return UnresolvedPolicy::WarnAll;
424 if (Args.hasArg(OPT_relocatable))405 if (Args.hasArg(OPT_relocatable))
425 return UnresolvedPolicy::IgnoreAll;406 return UnresolvedPolicy::IgnoreAll;
426407
427 UnresolvedPolicy ErrorOrWarn = getArg(Args, OPT_error_unresolved_symbols,408 UnresolvedPolicy ErrorOrWarn = Args.hasFlag(OPT_error_unresolved_symbols,
428 OPT_warn_unresolved_symbols, true)409 OPT_warn_unresolved_symbols, true)
429 ? UnresolvedPolicy::ReportError410 ? UnresolvedPolicy::ReportError
430 : UnresolvedPolicy::Warn;411 : UnresolvedPolicy::Warn;
431412
...@@ -513,7 +494,7 @@ static StripPolicy getStrip(opt::InputArgList &Args) {...@@ -513,7 +494,7 @@ static StripPolicy getStrip(opt::InputArgList &Args) {
513 return StripPolicy::Debug;494 return StripPolicy::Debug;
514}495}
515496
516static uint64_t parseSectionAddress(StringRef S, opt::Arg *Arg) {497static uint64_t parseSectionAddress(StringRef S, const opt::Arg &Arg) {
517 uint64_t VA = 0;498 uint64_t VA = 0;
518 if (S.startswith("0x"))499 if (S.startswith("0x"))
519 S = S.drop_front(2);500 S = S.drop_front(2);
...@@ -528,15 +509,15 @@ static StringMap<uint64_t> getSectionStartMap(opt::InputArgList &Args) {...@@ -528,15 +509,15 @@ static StringMap<uint64_t> getSectionStartMap(opt::InputArgList &Args) {
528 StringRef Name;509 StringRef Name;
529 StringRef Addr;510 StringRef Addr;
530 std::tie(Name, Addr) = StringRef(Arg->getValue()).split('=');511 std::tie(Name, Addr) = StringRef(Arg->getValue()).split('=');
531 Ret[Name] = parseSectionAddress(Addr, Arg);512 Ret[Name] = parseSectionAddress(Addr, *Arg);
532 }513 }
533514
534 if (auto *Arg = Args.getLastArg(OPT_Ttext))515 if (auto *Arg = Args.getLastArg(OPT_Ttext))
535 Ret[".text"] = parseSectionAddress(Arg->getValue(), Arg);516 Ret[".text"] = parseSectionAddress(Arg->getValue(), *Arg);
536 if (auto *Arg = Args.getLastArg(OPT_Tdata))517 if (auto *Arg = Args.getLastArg(OPT_Tdata))
537 Ret[".data"] = parseSectionAddress(Arg->getValue(), Arg);518 Ret[".data"] = parseSectionAddress(Arg->getValue(), *Arg);
538 if (auto *Arg = Args.getLastArg(OPT_Tbss))519 if (auto *Arg = Args.getLastArg(OPT_Tbss))
539 Ret[".bss"] = parseSectionAddress(Arg->getValue(), Arg);520 Ret[".bss"] = parseSectionAddress(Arg->getValue(), *Arg);
540 return Ret;521 return Ret;
541}522}
542523
...@@ -551,15 +532,15 @@ static SortSectionPolicy getSortSection(opt::InputArgList &Args) {...@@ -551,15 +532,15 @@ static SortSectionPolicy getSortSection(opt::InputArgList &Args) {
551 return SortSectionPolicy::Default;532 return SortSectionPolicy::Default;
552}533}
553534
554static std::pair<bool, bool> getHashStyle(opt::InputArgList &Args) {535static OrphanHandlingPolicy getOrphanHandling(opt::InputArgList &Args) {
555 StringRef S = Args.getLastArgValue(OPT_hash_style, "sysv");536 StringRef S = Args.getLastArgValue(OPT_orphan_handling, "place");
556 if (S == "sysv")537 if (S == "warn")
557 return {true, false};538 return OrphanHandlingPolicy::Warn;
558 if (S == "gnu")539 if (S == "error")
559 return {false, true};540 return OrphanHandlingPolicy::Error;
560 if (S != "both")541 if (S != "place")
561 error("unknown -hash-style: " + S);542 error("unknown --orphan-handling mode: " + S);
562 return {true, true};543 return OrphanHandlingPolicy::Place;
563}544}
564545
565// Parse --build-id or --build-id=<style>. We handle "tree" as a546// Parse --build-id or --build-id=<style>. We handle "tree" as a
...@@ -589,19 +570,6 @@ getBuildId(opt::InputArgList &Args) {...@@ -589,19 +570,6 @@ getBuildId(opt::InputArgList &Args) {
589 return {BuildIdKind::None, {}};570 return {BuildIdKind::None, {}};
590}571}
591572
592static std::vector<StringRef> getLines(MemoryBufferRef MB) {
593 SmallVector<StringRef, 0> Arr;
594 MB.getBuffer().split(Arr, '\n');
595
596 std::vector<StringRef> Ret;
597 for (StringRef S : Arr) {
598 S = S.trim();
599 if (!S.empty())
600 Ret.push_back(S);
601 }
602 return Ret;
603}
604
605static bool getCompressDebugSections(opt::InputArgList &Args) {573static bool getCompressDebugSections(opt::InputArgList &Args) {
606 StringRef S = Args.getLastArgValue(OPT_compress_debug_sections, "none");574 StringRef S = Args.getLastArgValue(OPT_compress_debug_sections, "none");
607 if (S == "none")575 if (S == "none")
...@@ -613,53 +581,70 @@ static bool getCompressDebugSections(opt::InputArgList &Args) {...@@ -613,53 +581,70 @@ static bool getCompressDebugSections(opt::InputArgList &Args) {
613 return true;581 return true;
614}582}
615583
584static int parseInt(StringRef S, opt::Arg *Arg) {
585 int V = 0;
586 if (!to_integer(S, V, 10))
587 error(Arg->getSpelling() + ": number expected, but got '" + S + "'");
588 return V;
589}
590
616// Initializes Config members by the command line options.591// Initializes Config members by the command line options.
617void LinkerDriver::readConfigs(opt::InputArgList &Args) {592void LinkerDriver::readConfigs(opt::InputArgList &Args) {
618 Config->AllowMultipleDefinition = Args.hasArg(OPT_allow_multiple_definition);593 Config->AllowMultipleDefinition =
619 Config->AuxiliaryList = getArgs(Args, OPT_auxiliary);594 Args.hasArg(OPT_allow_multiple_definition) || hasZOption(Args, "muldefs");
595 Config->AuxiliaryList = args::getStrings(Args, OPT_auxiliary);
620 Config->Bsymbolic = Args.hasArg(OPT_Bsymbolic);596 Config->Bsymbolic = Args.hasArg(OPT_Bsymbolic);
621 Config->BsymbolicFunctions = Args.hasArg(OPT_Bsymbolic_functions);597 Config->BsymbolicFunctions = Args.hasArg(OPT_Bsymbolic_functions);
598 Config->Chroot = Args.getLastArgValue(OPT_chroot);
622 Config->CompressDebugSections = getCompressDebugSections(Args);599 Config->CompressDebugSections = getCompressDebugSections(Args);
623 Config->DefineCommon = getArg(Args, OPT_define_common, OPT_no_define_common,600 Config->DefineCommon = Args.hasFlag(OPT_define_common, OPT_no_define_common,
624 !Args.hasArg(OPT_relocatable));601 !Args.hasArg(OPT_relocatable));
625 Config->Demangle = getArg(Args, OPT_demangle, OPT_no_demangle, true);602 Config->Demangle = Args.hasFlag(OPT_demangle, OPT_no_demangle, true);
626 Config->DisableVerify = Args.hasArg(OPT_disable_verify);603 Config->DisableVerify = Args.hasArg(OPT_disable_verify);
627 Config->Discard = getDiscard(Args);604 Config->Discard = getDiscard(Args);
628 Config->DynamicLinker = getDynamicLinker(Args);605 Config->DynamicLinker = getDynamicLinker(Args);
629 Config->EhFrameHdr = Args.hasArg(OPT_eh_frame_hdr);606 Config->EhFrameHdr =
607 Args.hasFlag(OPT_eh_frame_hdr, OPT_no_eh_frame_hdr, false);
630 Config->EmitRelocs = Args.hasArg(OPT_emit_relocs);608 Config->EmitRelocs = Args.hasArg(OPT_emit_relocs);
631 Config->EnableNewDtags = !Args.hasArg(OPT_disable_new_dtags);609 Config->EnableNewDtags = !Args.hasArg(OPT_disable_new_dtags);
632 Config->Entry = Args.getLastArgValue(OPT_entry);610 Config->Entry = Args.getLastArgValue(OPT_entry);
633 Config->ExportDynamic =611 Config->ExportDynamic =
634 getArg(Args, OPT_export_dynamic, OPT_no_export_dynamic, false);612 Args.hasFlag(OPT_export_dynamic, OPT_no_export_dynamic, false);
635 Config->FatalWarnings =613 errorHandler().FatalWarnings =
636 getArg(Args, OPT_fatal_warnings, OPT_no_fatal_warnings, false);614 Args.hasFlag(OPT_fatal_warnings, OPT_no_fatal_warnings, false);
637 Config->FilterList = getArgs(Args, OPT_filter);615 Config->FilterList = args::getStrings(Args, OPT_filter);
638 Config->Fini = Args.getLastArgValue(OPT_fini, "_fini");616 Config->Fini = Args.getLastArgValue(OPT_fini, "_fini");
639 Config->GcSections = getArg(Args, OPT_gc_sections, OPT_no_gc_sections, false);617 Config->FixCortexA53Errata843419 = Args.hasArg(OPT_fix_cortex_a53_843419);
640 Config->GdbIndex = Args.hasArg(OPT_gdb_index);618 Config->GcSections = Args.hasFlag(OPT_gc_sections, OPT_no_gc_sections, false);
641 Config->ICF = getArg(Args, OPT_icf_all, OPT_icf_none, false);619 Config->GdbIndex = Args.hasFlag(OPT_gdb_index, OPT_no_gdb_index, false);
620 Config->ICF = Args.hasFlag(OPT_icf_all, OPT_icf_none, false);
621 Config->ICFData = Args.hasArg(OPT_icf_data);
642 Config->Init = Args.getLastArgValue(OPT_init, "_init");622 Config->Init = Args.getLastArgValue(OPT_init, "_init");
643 Config->LTOAAPipeline = Args.getLastArgValue(OPT_lto_aa_pipeline);623 Config->LTOAAPipeline = Args.getLastArgValue(OPT_lto_aa_pipeline);
644 Config->LTONewPmPasses = Args.getLastArgValue(OPT_lto_newpm_passes);624 Config->LTONewPmPasses = Args.getLastArgValue(OPT_lto_newpm_passes);
645 Config->LTOO = getInteger(Args, OPT_lto_O, 2);625 Config->LTOO = args::getInteger(Args, OPT_lto_O, 2);
646 Config->LTOPartitions = getInteger(Args, OPT_lto_partitions, 1);626 Config->LTOPartitions = args::getInteger(Args, OPT_lto_partitions, 1);
647 Config->MapFile = Args.getLastArgValue(OPT_Map);627 Config->MapFile = Args.getLastArgValue(OPT_Map);
648 Config->NoGnuUnique = Args.hasArg(OPT_no_gnu_unique);628 Config->NoGnuUnique = Args.hasArg(OPT_no_gnu_unique);
629 Config->MergeArmExidx =
630 Args.hasFlag(OPT_merge_exidx_entries, OPT_no_merge_exidx_entries, true);
649 Config->NoUndefinedVersion = Args.hasArg(OPT_no_undefined_version);631 Config->NoUndefinedVersion = Args.hasArg(OPT_no_undefined_version);
632 Config->NoinhibitExec = Args.hasArg(OPT_noinhibit_exec);
650 Config->Nostdlib = Args.hasArg(OPT_nostdlib);633 Config->Nostdlib = Args.hasArg(OPT_nostdlib);
651 Config->OFormatBinary = isOutputFormatBinary(Args);634 Config->OFormatBinary = isOutputFormatBinary(Args);
652 Config->Omagic = Args.hasArg(OPT_omagic);635 Config->Omagic = Args.hasFlag(OPT_omagic, OPT_no_omagic, false);
653 Config->OptRemarksFilename = Args.getLastArgValue(OPT_opt_remarks_filename);636 Config->OptRemarksFilename = Args.getLastArgValue(OPT_opt_remarks_filename);
654 Config->OptRemarksWithHotness = Args.hasArg(OPT_opt_remarks_with_hotness);637 Config->OptRemarksWithHotness = Args.hasArg(OPT_opt_remarks_with_hotness);
655 Config->Optimize = getInteger(Args, OPT_O, 1);638 Config->Optimize = args::getInteger(Args, OPT_O, 1);
639 Config->OrphanHandling = getOrphanHandling(Args);
656 Config->OutputFile = Args.getLastArgValue(OPT_o);640 Config->OutputFile = Args.getLastArgValue(OPT_o);
657 Config->Pie = getArg(Args, OPT_pie, OPT_nopie, false);641 Config->Pie = Args.hasFlag(OPT_pie, OPT_nopie, false);
658 Config->PrintGcSections = Args.hasArg(OPT_print_gc_sections);642 Config->PrintGcSections =
643 Args.hasFlag(OPT_print_gc_sections, OPT_no_print_gc_sections, false);
659 Config->Rpath = getRpath(Args);644 Config->Rpath = getRpath(Args);
660 Config->Relocatable = Args.hasArg(OPT_relocatable);645 Config->Relocatable = Args.hasArg(OPT_relocatable);
661 Config->SaveTemps = Args.hasArg(OPT_save_temps);646 Config->SaveTemps = Args.hasArg(OPT_save_temps);
662 Config->SearchPaths = getArgs(Args, OPT_L);647 Config->SearchPaths = args::getStrings(Args, OPT_library_path);
663 Config->SectionStartMap = getSectionStartMap(Args);648 Config->SectionStartMap = getSectionStartMap(Args);
664 Config->Shared = Args.hasArg(OPT_shared);649 Config->Shared = Args.hasArg(OPT_shared);
665 Config->SingleRoRx = Args.hasArg(OPT_no_rosegment);650 Config->SingleRoRx = Args.hasArg(OPT_no_rosegment);
...@@ -667,18 +652,19 @@ void LinkerDriver::readConfigs(opt::InputArgList &Args) {...@@ -667,18 +652,19 @@ void LinkerDriver::readConfigs(opt::InputArgList &Args) {
667 Config->SortSection = getSortSection(Args);652 Config->SortSection = getSortSection(Args);
668 Config->Strip = getStrip(Args);653 Config->Strip = getStrip(Args);
669 Config->Sysroot = Args.getLastArgValue(OPT_sysroot);654 Config->Sysroot = Args.getLastArgValue(OPT_sysroot);
670 Config->Target1Rel = getArg(Args, OPT_target1_rel, OPT_target1_abs, false);655 Config->Target1Rel = Args.hasFlag(OPT_target1_rel, OPT_target1_abs, false);
671 Config->Target2 = getTarget2(Args);656 Config->Target2 = getTarget2(Args);
672 Config->ThinLTOCacheDir = Args.getLastArgValue(OPT_thinlto_cache_dir);657 Config->ThinLTOCacheDir = Args.getLastArgValue(OPT_thinlto_cache_dir);
673 Config->ThinLTOCachePolicy = check(658 Config->ThinLTOCachePolicy = CHECK(
674 parseCachePruningPolicy(Args.getLastArgValue(OPT_thinlto_cache_policy)),659 parseCachePruningPolicy(Args.getLastArgValue(OPT_thinlto_cache_policy)),
675 "--thinlto-cache-policy: invalid cache policy");660 "--thinlto-cache-policy: invalid cache policy");
676 Config->ThinLTOJobs = getInteger(Args, OPT_thinlto_jobs, -1u);661 Config->ThinLTOJobs = args::getInteger(Args, OPT_thinlto_jobs, -1u);
677 Config->Threads = getArg(Args, OPT_threads, OPT_no_threads, true);662 ThreadsEnabled = Args.hasFlag(OPT_threads, OPT_no_threads, true);
678 Config->Trace = Args.hasArg(OPT_trace);663 Config->Trace = Args.hasArg(OPT_trace);
679 Config->Undefined = getArgs(Args, OPT_undefined);664 Config->Undefined = args::getStrings(Args, OPT_undefined);
680 Config->UnresolvedSymbols = getUnresolvedSymbolPolicy(Args);665 Config->UnresolvedSymbols = getUnresolvedSymbolPolicy(Args);
681 Config->Verbose = Args.hasArg(OPT_verbose);666 Config->Verbose = Args.hasArg(OPT_verbose);
667 errorHandler().Verbose = Config->Verbose;
682 Config->WarnCommon = Args.hasArg(OPT_warn_common);668 Config->WarnCommon = Args.hasArg(OPT_warn_common);
683 Config->ZCombreloc = !hasZOption(Args, "nocombreloc");669 Config->ZCombreloc = !hasZOption(Args, "nocombreloc");
684 Config->ZExecstack = hasZOption(Args, "execstack");670 Config->ZExecstack = hasZOption(Args, "execstack");
...@@ -689,20 +675,39 @@ void LinkerDriver::readConfigs(opt::InputArgList &Args) {...@@ -689,20 +675,39 @@ void LinkerDriver::readConfigs(opt::InputArgList &Args) {
689 Config->ZOrigin = hasZOption(Args, "origin");675 Config->ZOrigin = hasZOption(Args, "origin");
690 Config->ZRelro = !hasZOption(Args, "norelro");676 Config->ZRelro = !hasZOption(Args, "norelro");
691 Config->ZRodynamic = hasZOption(Args, "rodynamic");677 Config->ZRodynamic = hasZOption(Args, "rodynamic");
692 Config->ZStackSize = getZOptionValue(Args, "stack-size", 0);678 Config->ZStackSize = args::getZOptionValue(Args, OPT_z, "stack-size", 0);
693 Config->ZText = !hasZOption(Args, "notext");679 Config->ZText = !hasZOption(Args, "notext");
694 Config->ZWxneeded = hasZOption(Args, "wxneeded");680 Config->ZWxneeded = hasZOption(Args, "wxneeded");
695681
682 // Parse LTO plugin-related options for compatibility with gold.
683 for (auto *Arg : Args.filtered(OPT_plugin_opt, OPT_plugin_opt_eq)) {
684 StringRef S = Arg->getValue();
685 if (S == "disable-verify")
686 Config->DisableVerify = true;
687 else if (S == "save-temps")
688 Config->SaveTemps = true;
689 else if (S.startswith("O"))
690 Config->LTOO = parseInt(S.substr(1), Arg);
691 else if (S.startswith("lto-partitions="))
692 Config->LTOPartitions = parseInt(S.substr(15), Arg);
693 else if (S.startswith("jobs="))
694 Config->ThinLTOJobs = parseInt(S.substr(5), Arg);
695 else if (!S.startswith("/") && !S.startswith("-fresolution=") &&
696 !S.startswith("-pass-through=") && !S.startswith("mcpu=") &&
697 !S.startswith("thinlto") && S != "-function-sections" &&
698 S != "-data-sections")
699 error(Arg->getSpelling() + ": unknown option: " + S);
700 }
701
696 if (Config->LTOO > 3)702 if (Config->LTOO > 3)
697 error("invalid optimization level for LTO: " +703 error("invalid optimization level for LTO: " + Twine(Config->LTOO));
698 Args.getLastArgValue(OPT_lto_O));
699 if (Config->LTOPartitions == 0)704 if (Config->LTOPartitions == 0)
700 error("--lto-partitions: number of threads must be > 0");705 error("--lto-partitions: number of threads must be > 0");
701 if (Config->ThinLTOJobs == 0)706 if (Config->ThinLTOJobs == 0)
702 error("--thinlto-jobs: number of threads must be > 0");707 error("--thinlto-jobs: number of threads must be > 0");
703708
709 // Parse ELF{32,64}{LE,BE} and CPU type.
704 if (auto *Arg = Args.getLastArg(OPT_m)) {710 if (auto *Arg = Args.getLastArg(OPT_m)) {
705 // Parse ELF{32,64}{LE,BE} and CPU type.
706 StringRef S = Arg->getValue();711 StringRef S = Arg->getValue();
707 std::tie(Config->EKind, Config->EMachine, Config->OSABI) =712 std::tie(Config->EKind, Config->EMachine, Config->OSABI) =
708 parseEmulation(S);713 parseEmulation(S);
...@@ -710,6 +715,19 @@ void LinkerDriver::readConfigs(opt::InputArgList &Args) {...@@ -710,6 +715,19 @@ void LinkerDriver::readConfigs(opt::InputArgList &Args) {
710 Config->Emulation = S;715 Config->Emulation = S;
711 }716 }
712717
718 // Parse -hash-style={sysv,gnu,both}.
719 if (auto *Arg = Args.getLastArg(OPT_hash_style)) {
720 StringRef S = Arg->getValue();
721 if (S == "sysv")
722 Config->SysvHash = true;
723 else if (S == "gnu")
724 Config->GnuHash = true;
725 else if (S == "both")
726 Config->SysvHash = Config->GnuHash = true;
727 else
728 error("unknown -hash-style: " + S);
729 }
730
713 if (Args.hasArg(OPT_print_map))731 if (Args.hasArg(OPT_print_map))
714 Config->MapFile = "-";732 Config->MapFile = "-";
715733
...@@ -720,25 +738,32 @@ void LinkerDriver::readConfigs(opt::InputArgList &Args) {...@@ -720,25 +738,32 @@ void LinkerDriver::readConfigs(opt::InputArgList &Args) {
720 if (Config->Omagic)738 if (Config->Omagic)
721 Config->ZRelro = false;739 Config->ZRelro = false;
722740
723 std::tie(Config->SysvHash, Config->GnuHash) = getHashStyle(Args);
724 std::tie(Config->BuildId, Config->BuildIdVector) = getBuildId(Args);741 std::tie(Config->BuildId, Config->BuildIdVector) = getBuildId(Args);
725742
743 if (auto *Arg = Args.getLastArg(OPT_pack_dyn_relocs_eq)) {
744 StringRef S = Arg->getValue();
745 if (S == "android")
746 Config->AndroidPackDynRelocs = true;
747 else if (S != "none")
748 error("unknown -pack-dyn-relocs format: " + S);
749 }
750
726 if (auto *Arg = Args.getLastArg(OPT_symbol_ordering_file))751 if (auto *Arg = Args.getLastArg(OPT_symbol_ordering_file))
727 if (Optional<MemoryBufferRef> Buffer = readFile(Arg->getValue()))752 if (Optional<MemoryBufferRef> Buffer = readFile(Arg->getValue()))
728 Config->SymbolOrderingFile = getLines(*Buffer);753 Config->SymbolOrderingFile = args::getLines(*Buffer);
729754
730 // If --retain-symbol-file is used, we'll keep only the symbols listed in755 // If --retain-symbol-file is used, we'll keep only the symbols listed in
731 // the file and discard all others.756 // the file and discard all others.
732 if (auto *Arg = Args.getLastArg(OPT_retain_symbols_file)) {757 if (auto *Arg = Args.getLastArg(OPT_retain_symbols_file)) {
733 Config->DefaultSymbolVersion = VER_NDX_LOCAL;758 Config->DefaultSymbolVersion = VER_NDX_LOCAL;
734 if (Optional<MemoryBufferRef> Buffer = readFile(Arg->getValue()))759 if (Optional<MemoryBufferRef> Buffer = readFile(Arg->getValue()))
735 for (StringRef S : getLines(*Buffer))760 for (StringRef S : args::getLines(*Buffer))
736 Config->VersionScriptGlobals.push_back(761 Config->VersionScriptGlobals.push_back(
737 {S, /*IsExternCpp*/ false, /*HasWildcard*/ false});762 {S, /*IsExternCpp*/ false, /*HasWildcard*/ false});
738 }763 }
739764
740 bool HasExportDynamic =765 bool HasExportDynamic =
741 getArg(Args, OPT_export_dynamic, OPT_no_export_dynamic, false);766 Args.hasFlag(OPT_export_dynamic, OPT_no_export_dynamic, false);
742767
743 // Parses -dynamic-list and -export-dynamic-symbol. They make some768 // Parses -dynamic-list and -export-dynamic-symbol. They make some
744 // symbols private. Note that -export-dynamic takes precedence over them769 // symbols private. Note that -export-dynamic takes precedence over them
...@@ -749,21 +774,11 @@ void LinkerDriver::readConfigs(opt::InputArgList &Args) {...@@ -749,21 +774,11 @@ void LinkerDriver::readConfigs(opt::InputArgList &Args) {
749 readDynamicList(*Buffer);774 readDynamicList(*Buffer);
750775
751 for (auto *Arg : Args.filtered(OPT_export_dynamic_symbol))776 for (auto *Arg : Args.filtered(OPT_export_dynamic_symbol))
752 Config->VersionScriptGlobals.push_back(777 Config->DynamicList.push_back(
753 {Arg->getValue(), /*IsExternCpp*/ false, /*HasWildcard*/ false});778 {Arg->getValue(), /*IsExternCpp*/ false, /*HasWildcard*/ false});
754
755 // Dynamic lists are a simplified linker script that doesn't need the
756 // "global:" and implicitly ends with a "local:*". Set the variables
757 // needed to simulate that.
758 if (Args.hasArg(OPT_dynamic_list) ||
759 Args.hasArg(OPT_export_dynamic_symbol)) {
760 Config->ExportDynamic = true;
761 if (!Config->Shared)
762 Config->DefaultSymbolVersion = VER_NDX_LOCAL;
763 }
764 }779 }
765780
766 if (auto *Arg = Args.getLastArg(OPT_version_script))781 for (auto *Arg : Args.filtered(OPT_version_script))
767 if (Optional<MemoryBufferRef> Buffer = readFile(Arg->getValue()))782 if (Optional<MemoryBufferRef> Buffer = readFile(Arg->getValue()))
768 readVersionScript(*Buffer);783 readVersionScript(*Buffer);
769}784}
...@@ -804,17 +819,20 @@ static bool getBinaryOption(StringRef S) {...@@ -804,17 +819,20 @@ static bool getBinaryOption(StringRef S) {
804819
805void LinkerDriver::createFiles(opt::InputArgList &Args) {820void LinkerDriver::createFiles(opt::InputArgList &Args) {
806 for (auto *Arg : Args) {821 for (auto *Arg : Args) {
807 switch (Arg->getOption().getID()) {822 switch (Arg->getOption().getUnaliasedOption().getID()) {
808 case OPT_l:823 case OPT_library:
809 addLibrary(Arg->getValue());824 addLibrary(Arg->getValue());
810 break;825 break;
811 case OPT_INPUT:826 case OPT_INPUT:
812 addFile(Arg->getValue(), /*WithLOption=*/false);827 addFile(Arg->getValue(), /*WithLOption=*/false);
813 break;828 break;
814 case OPT_alias_script_T:
815 case OPT_script:829 case OPT_script:
816 if (Optional<MemoryBufferRef> MB = readFile(Arg->getValue()))830 if (Optional<std::string> Path = searchLinkerScript(Arg->getValue())) {
817 readLinkerScript(*MB);831 if (Optional<MemoryBufferRef> MB = readFile(*Path))
832 readLinkerScript(*MB);
833 break;
834 }
835 error(Twine("cannot find linker script ") + Arg->getValue());
818 break;836 break;
819 case OPT_as_needed:837 case OPT_as_needed:
820 Config->AsNeeded = true;838 Config->AsNeeded = true;
...@@ -846,7 +864,7 @@ void LinkerDriver::createFiles(opt::InputArgList &Args) {...@@ -846,7 +864,7 @@ void LinkerDriver::createFiles(opt::InputArgList &Args) {
846 }864 }
847 }865 }
848866
849 if (Files.empty() && ErrorCount == 0)867 if (Files.empty() && errorCount() == 0)
850 error("no input files");868 error("no input files");
851}869}
852870
...@@ -870,21 +888,20 @@ void LinkerDriver::inferMachineType() {...@@ -870,21 +888,20 @@ void LinkerDriver::inferMachineType() {
870// Parse -z max-page-size=<value>. The default value is defined by888// Parse -z max-page-size=<value>. The default value is defined by
871// each target.889// each target.
872static uint64_t getMaxPageSize(opt::InputArgList &Args) {890static uint64_t getMaxPageSize(opt::InputArgList &Args) {
873 uint64_t Val =891 uint64_t Val = args::getZOptionValue(Args, OPT_z, "max-page-size",
874 getZOptionValue(Args, "max-page-size", Target->DefaultMaxPageSize);892 Target->DefaultMaxPageSize);
875 if (!isPowerOf2_64(Val))893 if (!isPowerOf2_64(Val))
876 error("max-page-size: value isn't a power of 2");894 error("max-page-size: value isn't a power of 2");
877 return Val;895 return Val;
878}896}
879897
880// Parses -image-base option.898// Parses -image-base option.
881static uint64_t getImageBase(opt::InputArgList &Args) {899static Optional<uint64_t> getImageBase(opt::InputArgList &Args) {
882 // Use default if no -image-base option is given.900 // Because we are using "Config->MaxPageSize" here, this function has to be
883 // Because we are using "Target" here, this function901 // called after the variable is initialized.
884 // has to be called after the variable is initialized.
885 auto *Arg = Args.getLastArg(OPT_image_base);902 auto *Arg = Args.getLastArg(OPT_image_base);
886 if (!Arg)903 if (!Arg)
887 return Config->Pic ? 0 : Target->DefaultImageBase;904 return None;
888905
889 StringRef S = Arg->getValue();906 StringRef S = Arg->getValue();
890 uint64_t V;907 uint64_t V;
...@@ -897,21 +914,6 @@ static uint64_t getImageBase(opt::InputArgList &Args) {...@@ -897,21 +914,6 @@ static uint64_t getImageBase(opt::InputArgList &Args) {
897 return V;914 return V;
898}915}
899916
900// Parses --defsym=alias option.
901static std::vector<std::pair<StringRef, StringRef>>
902getDefsym(opt::InputArgList &Args) {
903 std::vector<std::pair<StringRef, StringRef>> Ret;
904 for (auto *Arg : Args.filtered(OPT_defsym)) {
905 StringRef From;
906 StringRef To;
907 std::tie(From, To) = StringRef(Arg->getValue()).split('=');
908 if (!isValidCIdentifier(To))
909 error("--defsym: symbol name expected, but got " + To);
910 Ret.push_back({From, To});
911 }
912 return Ret;
913}
914
915// Parses `--exclude-libs=lib,lib,...`.917// Parses `--exclude-libs=lib,lib,...`.
916// The library names may be delimited by commas or colons.918// The library names may be delimited by commas or colons.
917static DenseSet<StringRef> getExcludeLibs(opt::InputArgList &Args) {919static DenseSet<StringRef> getExcludeLibs(opt::InputArgList &Args) {
...@@ -930,33 +932,50 @@ static DenseSet<StringRef> getExcludeLibs(opt::InputArgList &Args) {...@@ -930,33 +932,50 @@ static DenseSet<StringRef> getExcludeLibs(opt::InputArgList &Args) {
930 return Ret;932 return Ret;
931}933}
932934
935static Optional<StringRef> getArchiveName(InputFile *File) {
936 if (isa<ArchiveFile>(File))
937 return File->getName();
938 if (!File->ArchiveName.empty())
939 return File->ArchiveName;
940 return None;
941}
942
933// Handles the -exclude-libs option. If a static library file is specified943// Handles the -exclude-libs option. If a static library file is specified
934// by the -exclude-libs option, all public symbols from the archive become944// by the -exclude-libs option, all public symbols from the archive become
935// private unless otherwise specified by version scripts or something.945// private unless otherwise specified by version scripts or something.
936// A special library name "ALL" means all archive files.946// A special library name "ALL" means all archive files.
937//947//
938// This is not a popular option, but some programs such as bionic libc use it.948// This is not a popular option, but some programs such as bionic libc use it.
949template <class ELFT>
939static void excludeLibs(opt::InputArgList &Args, ArrayRef<InputFile *> Files) {950static void excludeLibs(opt::InputArgList &Args, ArrayRef<InputFile *> Files) {
940 DenseSet<StringRef> Libs = getExcludeLibs(Args);951 DenseSet<StringRef> Libs = getExcludeLibs(Args);
941 bool All = Libs.count("ALL");952 bool All = Libs.count("ALL");
942953
943 for (InputFile *File : Files)954 for (InputFile *File : Files)
944 if (auto *F = dyn_cast<ArchiveFile>(File))955 if (Optional<StringRef> Archive = getArchiveName(File))
945 if (All || Libs.count(path::filename(F->getName())))956 if (All || Libs.count(path::filename(*Archive)))
946 for (Symbol *Sym : F->getSymbols())957 for (Symbol *Sym : File->getSymbols())
947 Sym->VersionId = VER_NDX_LOCAL;958 if (!Sym->isLocal())
959 Sym->VersionId = VER_NDX_LOCAL;
948}960}
949961
950// Do actual linking. Note that when this function is called,962// Do actual linking. Note that when this function is called,
951// all linker scripts have already been parsed.963// all linker scripts have already been parsed.
952template <class ELFT> void LinkerDriver::link(opt::InputArgList &Args) {964template <class ELFT> void LinkerDriver::link(opt::InputArgList &Args) {
953 SymbolTable<ELFT> Symtab;
954 elf::Symtab<ELFT>::X = &Symtab;
955 Target = getTarget();965 Target = getTarget();
956966
957 Config->MaxPageSize = getMaxPageSize(Args);967 Config->MaxPageSize = getMaxPageSize(Args);
958 Config->ImageBase = getImageBase(Args);968 Config->ImageBase = getImageBase(Args);
959969
970 // If a -hash-style option was not given, set to a default value,
971 // which varies depending on the target.
972 if (!Args.hasArg(OPT_hash_style)) {
973 if (Config->EMachine == EM_MIPS)
974 Config->SysvHash = true;
975 else
976 Config->SysvHash = Config->GnuHash = true;
977 }
978
960 // Default output filename is "a.out" by the Unix tradition.979 // Default output filename is "a.out" by the Unix tradition.
961 if (Config->OutputFile.empty())980 if (Config->OutputFile.empty())
962 Config->OutputFile = "a.out";981 Config->OutputFile = "a.out";
...@@ -968,7 +987,7 @@ template <class ELFT> void LinkerDriver::link(opt::InputArgList &Args) {...@@ -968,7 +987,7 @@ template <class ELFT> void LinkerDriver::link(opt::InputArgList &Args) {
968 error("cannot open output file " + Config->OutputFile + ": " + E.message());987 error("cannot open output file " + Config->OutputFile + ": " + E.message());
969 if (auto E = tryCreateFile(Config->MapFile))988 if (auto E = tryCreateFile(Config->MapFile))
970 error("cannot open map file " + Config->MapFile + ": " + E.message());989 error("cannot open map file " + Config->MapFile + ": " + E.message());
971 if (ErrorCount)990 if (errorCount())
972 return;991 return;
973992
974 // Use default entry point name if no name was given via the command993 // Use default entry point name if no name was given via the command
...@@ -981,78 +1000,125 @@ template <class ELFT> void LinkerDriver::link(opt::InputArgList &Args) {...@@ -981,78 +1000,125 @@ template <class ELFT> void LinkerDriver::link(opt::InputArgList &Args) {
9811000
982 // Handle --trace-symbol.1001 // Handle --trace-symbol.
983 for (auto *Arg : Args.filtered(OPT_trace_symbol))1002 for (auto *Arg : Args.filtered(OPT_trace_symbol))
984 Symtab.trace(Arg->getValue());1003 Symtab->trace(Arg->getValue());
9851004
986 // Add all files to the symbol table. This will add almost all1005 // Add all files to the symbol table. This will add almost all
987 // symbols that we need to the symbol table.1006 // symbols that we need to the symbol table.
988 for (InputFile *F : Files)1007 for (InputFile *F : Files)
989 Symtab.addFile(F);1008 Symtab->addFile<ELFT>(F);
1009
1010 // Process -defsym option.
1011 for (auto *Arg : Args.filtered(OPT_defsym)) {
1012 StringRef From;
1013 StringRef To;
1014 std::tie(From, To) = StringRef(Arg->getValue()).split('=');
1015 readDefsym(From, MemoryBufferRef(To, "-defsym"));
1016 }
1017
1018 // Now that we have every file, we can decide if we will need a
1019 // dynamic symbol table.
1020 // We need one if we were asked to export dynamic symbols or if we are
1021 // producing a shared library.
1022 // We also need one if any shared libraries are used and for pie executables
1023 // (probably because the dynamic linker needs it).
1024 Config->HasDynSymTab =
1025 !SharedFiles.empty() || Config->Pic || Config->ExportDynamic;
1026
1027 // Some symbols (such as __ehdr_start) are defined lazily only when there
1028 // are undefined symbols for them, so we add these to trigger that logic.
1029 for (StringRef Sym : Script->ReferencedSymbols)
1030 Symtab->addUndefined<ELFT>(Sym);
1031
1032 // Handle the `--undefined <sym>` options.
1033 for (StringRef S : Config->Undefined)
1034 Symtab->fetchIfLazy<ELFT>(S);
9901035
991 // If an entry symbol is in a static archive, pull out that file now1036 // If an entry symbol is in a static archive, pull out that file now
992 // to complete the symbol table. After this, no new names except a1037 // to complete the symbol table. After this, no new names except a
993 // few linker-synthesized ones will be added to the symbol table.1038 // few linker-synthesized ones will be added to the symbol table.
994 if (Symtab.find(Config->Entry))1039 Symtab->fetchIfLazy<ELFT>(Config->Entry);
995 Symtab.addUndefined(Config->Entry);
9961040
997 // Return if there were name resolution errors.1041 // Return if there were name resolution errors.
998 if (ErrorCount)1042 if (errorCount())
999 return;1043 return;
10001044
1001 // Handle the `--undefined <sym>` options.
1002 Symtab.scanUndefinedFlags();
1003
1004 // Handle undefined symbols in DSOs.1045 // Handle undefined symbols in DSOs.
1005 Symtab.scanShlibUndefined();1046 if (!Config->Shared)
1047 Symtab->scanShlibUndefined<ELFT>();
10061048
1007 // Handle the -exclude-libs option.1049 // Handle the -exclude-libs option.
1008 if (Args.hasArg(OPT_exclude_libs))1050 if (Args.hasArg(OPT_exclude_libs))
1009 excludeLibs(Args, Files);1051 excludeLibs<ELFT>(Args, Files);
1052
1053 // Create ElfHeader early. We need a dummy section in
1054 // addReservedSymbols to mark the created symbols as not absolute.
1055 Out::ElfHeader = make<OutputSection>("", 0, SHF_ALLOC);
1056 Out::ElfHeader->Size = sizeof(typename ELFT::Ehdr);
1057
1058 // We need to create some reserved symbols such as _end. Create them.
1059 if (!Config->Relocatable)
1060 addReservedSymbols();
10101061
1011 // Apply version scripts.1062 // Apply version scripts.
1012 Symtab.scanVersionScript();1063 Symtab->scanVersionScript();
10131064
1014 // Create wrapped symbols for -wrap option.1065 // Create wrapped symbols for -wrap option.
1015 for (auto *Arg : Args.filtered(OPT_wrap))1066 for (auto *Arg : Args.filtered(OPT_wrap))
1016 Symtab.addSymbolWrap(Arg->getValue());1067 Symtab->addSymbolWrap<ELFT>(Arg->getValue());
1017
1018 // Create alias symbols for -defsym option.
1019 for (std::pair<StringRef, StringRef> &Def : getDefsym(Args))
1020 Symtab.addSymbolAlias(Def.first, Def.second);
10211068
1022 Symtab.addCombinedLTOObject();1069 Symtab->addCombinedLTOObject<ELFT>();
1023 if (ErrorCount)1070 if (errorCount())
1024 return;1071 return;
10251072
1026 // Some symbols (such as __ehdr_start) are defined lazily only when there1073 // Apply symbol renames for -wrap.
1027 // are undefined symbols for them, so we add these to trigger that logic.1074 Symtab->applySymbolWrap();
1028 for (StringRef Sym : Script->Opt.ReferencedSymbols)
1029 Symtab.addUndefined(Sym);
1030
1031 // Apply symbol renames for -wrap and -defsym
1032 Symtab.applySymbolRenames();
10331075
1034 // Now that we have a complete list of input files.1076 // Now that we have a complete list of input files.
1035 // Beyond this point, no new files are added.1077 // Beyond this point, no new files are added.
1036 // Aggregate all input sections into one place.1078 // Aggregate all input sections into one place.
1037 for (elf::ObjectFile<ELFT> *F : Symtab.getObjectFiles())1079 for (InputFile *F : ObjectFiles)
1038 for (InputSectionBase *S : F->getSections())1080 for (InputSectionBase *S : F->getSections())
1039 if (S && S != &InputSection::Discarded)1081 if (S && S != &InputSection::Discarded)
1040 InputSections.push_back(S);1082 InputSections.push_back(S);
1041 for (BinaryFile *F : Symtab.getBinaryFiles())1083 for (BinaryFile *F : BinaryFiles)
1042 for (InputSectionBase *S : F->getSections())1084 for (InputSectionBase *S : F->getSections())
1043 InputSections.push_back(cast<InputSection>(S));1085 InputSections.push_back(cast<InputSection>(S));
10441086
1087 // We do not want to emit debug sections if --strip-all
1088 // or -strip-debug are given.
1089 if (Config->Strip != StripPolicy::None)
1090 llvm::erase_if(InputSections, [](InputSectionBase *S) {
1091 return S->Name.startswith(".debug") || S->Name.startswith(".zdebug");
1092 });
1093
1094 Config->EFlags = Target->calcEFlags();
1095
1096 if (Config->EMachine == EM_ARM) {
1097 // FIXME: These warnings can be removed when lld only uses these features
1098 // when the input objects have been compiled with an architecture that
1099 // supports them.
1100 if (Config->ARMHasBlx == false)
1101 warn("lld uses blx instruction, no object with architecture supporting "
1102 "feature detected.");
1103 if (Config->ARMJ1J2BranchEncoding == false)
1104 warn("lld uses extended branch encoding, no object with architecture "
1105 "supporting feature detected.");
1106 if (Config->ARMHasMovtMovw == false)
1107 warn("lld may use movt/movw, no object with architecture supporting "
1108 "feature detected.");
1109 }
1110
1045 // This adds a .comment section containing a version string. We have to add it1111 // This adds a .comment section containing a version string. We have to add it
1046 // before decompressAndMergeSections because the .comment section is a1112 // before decompressAndMergeSections because the .comment section is a
1047 // mergeable section.1113 // mergeable section.
1048 if (!Config->Relocatable)1114 if (!Config->Relocatable)
1049 InputSections.push_back(createCommentSection<ELFT>());1115 InputSections.push_back(createCommentSection());
10501116
1051 // Do size optimizations: garbage collection, merging of SHF_MERGE sections1117 // Do size optimizations: garbage collection, merging of SHF_MERGE sections
1052 // and identical code folding.1118 // and identical code folding.
1053 if (Config->GcSections)1119 markLive<ELFT>();
1054 markLive<ELFT>();1120 decompressSections();
1055 decompressAndMergeSections();1121 mergeSections();
1056 if (Config->ICF)1122 if (Config->ICF)
1057 doIcf<ELFT>();1123 doIcf<ELFT>();
10581124
deps/lld/ELF/Driver.h+3-2
...@@ -11,8 +11,8 @@...@@ -11,8 +11,8 @@
11#define LLD_ELF_DRIVER_H11#define LLD_ELF_DRIVER_H
1212
13#include "SymbolTable.h"13#include "SymbolTable.h"
14#include "lld/Core/LLVM.h"14#include "lld/Common/LLVM.h"
15#include "lld/Core/Reproduce.h"15#include "lld/Common/Reproduce.h"
16#include "llvm/ADT/Optional.h"16#include "llvm/ADT/Optional.h"
17#include "llvm/ADT/StringRef.h"17#include "llvm/ADT/StringRef.h"
18#include "llvm/ADT/StringSet.h"18#include "llvm/ADT/StringSet.h"
...@@ -67,6 +67,7 @@ void printHelp(const char *Argv0);...@@ -67,6 +67,7 @@ void printHelp(const char *Argv0);
67std::string createResponseFile(const llvm::opt::InputArgList &Args);67std::string createResponseFile(const llvm::opt::InputArgList &Args);
6868
69llvm::Optional<std::string> findFromSearchPaths(StringRef Path);69llvm::Optional<std::string> findFromSearchPaths(StringRef Path);
70llvm::Optional<std::string> searchLinkerScript(StringRef Path);
70llvm::Optional<std::string> searchLibrary(StringRef Path);71llvm::Optional<std::string> searchLibrary(StringRef Path);
7172
72} // namespace elf73} // namespace elf
deps/lld/ELF/DriverUtils.cpp+39-29
...@@ -14,10 +14,10 @@...@@ -14,10 +14,10 @@
14//===----------------------------------------------------------------------===//14//===----------------------------------------------------------------------===//
1515
16#include "Driver.h"16#include "Driver.h"
17#include "Error.h"17#include "lld/Common/ErrorHandler.h"
18#include "Memory.h"18#include "lld/Common/Memory.h"
19#include "lld/Config/Version.h"19#include "lld/Common/Reproduce.h"
20#include "lld/Core/Reproduce.h"20#include "lld/Common/Version.h"
21#include "llvm/ADT/Optional.h"21#include "llvm/ADT/Optional.h"
22#include "llvm/ADT/STLExtras.h"22#include "llvm/ADT/STLExtras.h"
23#include "llvm/ADT/Triple.h"23#include "llvm/ADT/Triple.h"
...@@ -51,25 +51,26 @@ static const opt::OptTable::Info OptInfo[] = {...@@ -51,25 +51,26 @@ static const opt::OptTable::Info OptInfo[] = {
5151
52ELFOptTable::ELFOptTable() : OptTable(OptInfo) {}52ELFOptTable::ELFOptTable() : OptTable(OptInfo) {}
5353
54// Parse -color-diagnostics={auto,always,never} or -no-color-diagnostics.54// Set color diagnostics according to -color-diagnostics={auto,always,never}
55static bool getColorDiagnostics(opt::InputArgList &Args) {55// or -no-color-diagnostics flags.
56static void handleColorDiagnostics(opt::InputArgList &Args) {
56 auto *Arg = Args.getLastArg(OPT_color_diagnostics, OPT_color_diagnostics_eq,57 auto *Arg = Args.getLastArg(OPT_color_diagnostics, OPT_color_diagnostics_eq,
57 OPT_no_color_diagnostics);58 OPT_no_color_diagnostics);
58 if (!Arg)59 if (!Arg)
59 return ErrorOS->has_colors();60 return;
60 if (Arg->getOption().getID() == OPT_color_diagnostics)61 else if (Arg->getOption().getID() == OPT_color_diagnostics)
61 return true;62 errorHandler().ColorDiagnostics = true;
62 if (Arg->getOption().getID() == OPT_no_color_diagnostics)63 else if (Arg->getOption().getID() == OPT_no_color_diagnostics)
63 return false;64 errorHandler().ColorDiagnostics = false;
6465 else {
65 StringRef S = Arg->getValue();66 StringRef S = Arg->getValue();
66 if (S == "auto")67 if (S == "always")
67 return ErrorOS->has_colors();68 errorHandler().ColorDiagnostics = true;
68 if (S == "always")69 else if (S == "never")
69 return true;70 errorHandler().ColorDiagnostics = false;
70 if (S != "never")71 else if (S != "auto")
71 error("unknown option: -color-diagnostics=" + S);72 error("unknown option: -color-diagnostics=" + S);
72 return false;73 }
73}74}
7475
75static cl::TokenizerCallback getQuotingStyle(opt::InputArgList &Args) {76static cl::TokenizerCallback getQuotingStyle(opt::InputArgList &Args) {
...@@ -103,9 +104,7 @@ opt::InputArgList ELFOptTable::parse(ArrayRef<const char *> Argv) {...@@ -103,9 +104,7 @@ opt::InputArgList ELFOptTable::parse(ArrayRef<const char *> Argv) {
103 cl::ExpandResponseFiles(Saver, getQuotingStyle(Args), Vec);104 cl::ExpandResponseFiles(Saver, getQuotingStyle(Args), Vec);
104 Args = this->ParseArgs(Vec, MissingIndex, MissingCount);105 Args = this->ParseArgs(Vec, MissingIndex, MissingCount);
105106
106 // Interpret -color-diagnostics early so that error messages107 handleColorDiagnostics(Args);
107 // for unknown flags are colored.
108 Config->ColorDiagnostics = getColorDiagnostics(Args);
109 if (MissingCount)108 if (MissingCount)
110 error(Twine(Args.getArgString(MissingIndex)) + ": missing argument");109 error(Twine(Args.getArgString(MissingIndex)) + ": missing argument");
111110
...@@ -115,8 +114,8 @@ opt::InputArgList ELFOptTable::parse(ArrayRef<const char *> Argv) {...@@ -115,8 +114,8 @@ opt::InputArgList ELFOptTable::parse(ArrayRef<const char *> Argv) {
115}114}
116115
117void elf::printHelp(const char *Argv0) {116void elf::printHelp(const char *Argv0) {
118 ELFOptTable Table;117 ELFOptTable().PrintHelp(outs(), Argv0, "lld", false /*ShowHidden*/,
119 Table.PrintHelp(outs(), Argv0, "lld", false);118 true /*ShowAllAliases*/);
120 outs() << "\n";119 outs() << "\n";
121120
122 // Scripts generated by Libtool versions up to at least 2.4.6 (the most121 // Scripts generated by Libtool versions up to at least 2.4.6 (the most
...@@ -138,10 +137,11 @@ void elf::printHelp(const char *Argv0) {...@@ -138,10 +137,11 @@ void elf::printHelp(const char *Argv0) {
138std::string elf::createResponseFile(const opt::InputArgList &Args) {137std::string elf::createResponseFile(const opt::InputArgList &Args) {
139 SmallString<0> Data;138 SmallString<0> Data;
140 raw_svector_ostream OS(Data);139 raw_svector_ostream OS(Data);
140 OS << "--chroot .\n";
141141
142 // Copy the command line to the output while rewriting paths.142 // Copy the command line to the output while rewriting paths.
143 for (auto *Arg : Args) {143 for (auto *Arg : Args) {
144 switch (Arg->getOption().getID()) {144 switch (Arg->getOption().getUnaliasedOption().getID()) {
145 case OPT_reproduce:145 case OPT_reproduce:
146 break;146 break;
147 case OPT_INPUT:147 case OPT_INPUT:
...@@ -154,17 +154,18 @@ std::string elf::createResponseFile(const opt::InputArgList &Args) {...@@ -154,17 +154,18 @@ std::string elf::createResponseFile(const opt::InputArgList &Args) {
154 // Strip directories to prevent the issue.154 // Strip directories to prevent the issue.
155 OS << "-o " << quote(sys::path::filename(Arg->getValue())) << "\n";155 OS << "-o " << quote(sys::path::filename(Arg->getValue())) << "\n";
156 break;156 break;
157 case OPT_L:
158 case OPT_dynamic_list:157 case OPT_dynamic_list:
158 case OPT_library_path:
159 case OPT_rpath:159 case OPT_rpath:
160 case OPT_alias_script_T:
161 case OPT_script:160 case OPT_script:
161 case OPT_symbol_ordering_file:
162 case OPT_sysroot:
162 case OPT_version_script:163 case OPT_version_script:
163 OS << Arg->getSpelling() << " " << quote(rewritePath(Arg->getValue()))164 OS << Arg->getSpelling() << " " << quote(rewritePath(Arg->getValue()))
164 << "\n";165 << "\n";
165 break;166 break;
166 default:167 default:
167 OS << toString(Arg) << "\n";168 OS << toString(*Arg) << "\n";
168 }169 }
169 }170 }
170 return Data.str();171 return Data.str();
...@@ -206,3 +207,12 @@ Optional<std::string> elf::searchLibrary(StringRef Name) {...@@ -206,3 +207,12 @@ Optional<std::string> elf::searchLibrary(StringRef Name) {
206 }207 }
207 return None;208 return None;
208}209}
210
211// If a linker script doesn't exist in the current directory, we also look for
212// the script in the '-L' search paths. This matches the behaviour of both '-T'
213// and linker script INPUT() directives in ld.bfd.
214Optional<std::string> elf::searchLinkerScript(StringRef Name) {
215 if (fs::exists(Name))
216 return Name.str();
217 return findFromSearchPaths(Name);
218}
deps/lld/ELF/EhFrame.cpp+15-27
...@@ -17,11 +17,12 @@...@@ -17,11 +17,12 @@
17//===----------------------------------------------------------------------===//17//===----------------------------------------------------------------------===//
1818
19#include "EhFrame.h"19#include "EhFrame.h"
20#include "Error.h"20#include "Config.h"
21#include "InputSection.h"21#include "InputSection.h"
22#include "Relocations.h"22#include "Relocations.h"
23#include "Strings.h"23#include "Strings.h"
2424
25#include "lld/Common/ErrorHandler.h"
25#include "llvm/BinaryFormat/Dwarf.h"26#include "llvm/BinaryFormat/Dwarf.h"
26#include "llvm/Object/ELF.h"27#include "llvm/Object/ELF.h"
27#include "llvm/Support/Endian.h"28#include "llvm/Support/Endian.h"
...@@ -36,7 +37,7 @@ using namespace lld;...@@ -36,7 +37,7 @@ using namespace lld;
36using namespace lld::elf;37using namespace lld::elf;
3738
38namespace {39namespace {
39template <class ELFT> class EhReader {40class EhReader {
40public:41public:
41 EhReader(InputSectionBase *S, ArrayRef<uint8_t> D) : IS(S), D(D) {}42 EhReader(InputSectionBase *S, ArrayRef<uint8_t> D) : IS(S), D(D) {}
42 size_t readEhRecordSize();43 size_t readEhRecordSize();
...@@ -45,7 +46,7 @@ public:...@@ -45,7 +46,7 @@ public:
45private:46private:
46 template <class P> void failOn(const P *Loc, const Twine &Msg) {47 template <class P> void failOn(const P *Loc, const Twine &Msg) {
47 fatal("corrupted .eh_frame: " + Msg + "\n>>> defined in " +48 fatal("corrupted .eh_frame: " + Msg + "\n>>> defined in " +
48 IS->getObjMsg<ELFT>((const uint8_t *)Loc - IS->Data.data()));49 IS->getObjMsg((const uint8_t *)Loc - IS->Data.data()));
49 }50 }
5051
51 uint8_t readByte();52 uint8_t readByte();
...@@ -59,22 +60,20 @@ private:...@@ -59,22 +60,20 @@ private:
59};60};
60}61}
6162
62template <class ELFT>
63size_t elf::readEhRecordSize(InputSectionBase *S, size_t Off) {63size_t elf::readEhRecordSize(InputSectionBase *S, size_t Off) {
64 return EhReader<ELFT>(S, S->Data.slice(Off)).readEhRecordSize();64 return EhReader(S, S->Data.slice(Off)).readEhRecordSize();
65}65}
6666
67// .eh_frame section is a sequence of records. Each record starts with67// .eh_frame section is a sequence of records. Each record starts with
68// a 4 byte length field. This function reads the length.68// a 4 byte length field. This function reads the length.
69template <class ELFT> size_t EhReader<ELFT>::readEhRecordSize() {69size_t EhReader::readEhRecordSize() {
70 const endianness E = ELFT::TargetEndianness;
71 if (D.size() < 4)70 if (D.size() < 4)
72 failOn(D.data(), "CIE/FDE too small");71 failOn(D.data(), "CIE/FDE too small");
7372
74 // First 4 bytes of CIE/FDE is the size of the record.73 // First 4 bytes of CIE/FDE is the size of the record.
75 // If it is 0xFFFFFFFF, the next 8 bytes contain the size instead,74 // If it is 0xFFFFFFFF, the next 8 bytes contain the size instead,
76 // but we do not support that format yet.75 // but we do not support that format yet.
77 uint64_t V = read32<E>(D.data());76 uint64_t V = read32(D.data(), Config->Endianness);
78 if (V == UINT32_MAX)77 if (V == UINT32_MAX)
79 failOn(D.data(), "CIE/FDE too large");78 failOn(D.data(), "CIE/FDE too large");
80 uint64_t Size = V + 4;79 uint64_t Size = V + 4;
...@@ -84,7 +83,7 @@ template <class ELFT> size_t EhReader<ELFT>::readEhRecordSize() {...@@ -84,7 +83,7 @@ template <class ELFT> size_t EhReader<ELFT>::readEhRecordSize() {
84}83}
8584
86// Read a byte and advance D by one byte.85// Read a byte and advance D by one byte.
87template <class ELFT> uint8_t EhReader<ELFT>::readByte() {86uint8_t EhReader::readByte() {
88 if (D.empty())87 if (D.empty())
89 failOn(D.data(), "unexpected end of CIE");88 failOn(D.data(), "unexpected end of CIE");
90 uint8_t B = D.front();89 uint8_t B = D.front();
...@@ -92,14 +91,14 @@ template <class ELFT> uint8_t EhReader<ELFT>::readByte() {...@@ -92,14 +91,14 @@ template <class ELFT> uint8_t EhReader<ELFT>::readByte() {
92 return B;91 return B;
93}92}
9493
95template <class ELFT> void EhReader<ELFT>::skipBytes(size_t Count) {94void EhReader::skipBytes(size_t Count) {
96 if (D.size() < Count)95 if (D.size() < Count)
97 failOn(D.data(), "CIE is too small");96 failOn(D.data(), "CIE is too small");
98 D = D.slice(Count);97 D = D.slice(Count);
99}98}
10099
101// Read a null-terminated string.100// Read a null-terminated string.
102template <class ELFT> StringRef EhReader<ELFT>::readString() {101StringRef EhReader::readString() {
103 const uint8_t *End = std::find(D.begin(), D.end(), '\0');102 const uint8_t *End = std::find(D.begin(), D.end(), '\0');
104 if (End == D.end())103 if (End == D.end())
105 failOn(D.data(), "corrupted CIE (failed to read string)");104 failOn(D.data(), "corrupted CIE (failed to read string)");
...@@ -112,7 +111,7 @@ template <class ELFT> StringRef EhReader<ELFT>::readString() {...@@ -112,7 +111,7 @@ template <class ELFT> StringRef EhReader<ELFT>::readString() {
112// Actual number is not of interest because only the runtime needs it.111// Actual number is not of interest because only the runtime needs it.
113// But we need to be at least able to skip it so that we can read112// But we need to be at least able to skip it so that we can read
114// the field that follows a LEB128 number.113// the field that follows a LEB128 number.
115template <class ELFT> void EhReader<ELFT>::skipLeb128() {114void EhReader::skipLeb128() {
116 const uint8_t *ErrPos = D.data();115 const uint8_t *ErrPos = D.data();
117 while (!D.empty()) {116 while (!D.empty()) {
118 uint8_t Val = D.front();117 uint8_t Val = D.front();
...@@ -141,7 +140,7 @@ static size_t getAugPSize(unsigned Enc) {...@@ -141,7 +140,7 @@ static size_t getAugPSize(unsigned Enc) {
141 return 0;140 return 0;
142}141}
143142
144template <class ELFT> void EhReader<ELFT>::skipAugP() {143void EhReader::skipAugP() {
145 uint8_t Enc = readByte();144 uint8_t Enc = readByte();
146 if ((Enc & 0xf0) == DW_EH_PE_aligned)145 if ((Enc & 0xf0) == DW_EH_PE_aligned)
147 failOn(D.data() - 1, "DW_EH_PE_aligned encoding is not supported");146 failOn(D.data() - 1, "DW_EH_PE_aligned encoding is not supported");
...@@ -153,12 +152,11 @@ template <class ELFT> void EhReader<ELFT>::skipAugP() {...@@ -153,12 +152,11 @@ template <class ELFT> void EhReader<ELFT>::skipAugP() {
153 D = D.slice(Size);152 D = D.slice(Size);
154}153}
155154
156template <class ELFT> uint8_t elf::getFdeEncoding(EhSectionPiece *P) {155uint8_t elf::getFdeEncoding(EhSectionPiece *P) {
157 auto *IS = static_cast<InputSectionBase *>(P->ID);156 return EhReader(P->Sec, P->data()).getFdeEncoding();
158 return EhReader<ELFT>(IS, P->data()).getFdeEncoding();
159}157}
160158
161template <class ELFT> uint8_t EhReader<ELFT>::getFdeEncoding() {159uint8_t EhReader::getFdeEncoding() {
162 skipBytes(8);160 skipBytes(8);
163 int Version = readByte();161 int Version = readByte();
164 if (Version != 1 && Version != 3)162 if (Version != 1 && Version != 3)
...@@ -200,13 +198,3 @@ template <class ELFT> uint8_t EhReader<ELFT>::getFdeEncoding() {...@@ -200,13 +198,3 @@ template <class ELFT> uint8_t EhReader<ELFT>::getFdeEncoding() {
200 }198 }
201 return DW_EH_PE_absptr;199 return DW_EH_PE_absptr;
202}200}
203
204template size_t elf::readEhRecordSize<ELF32LE>(InputSectionBase *S, size_t Off);
205template size_t elf::readEhRecordSize<ELF32BE>(InputSectionBase *S, size_t Off);
206template size_t elf::readEhRecordSize<ELF64LE>(InputSectionBase *S, size_t Off);
207template size_t elf::readEhRecordSize<ELF64BE>(InputSectionBase *S, size_t Off);
208
209template uint8_t elf::getFdeEncoding<ELF32LE>(EhSectionPiece *P);
210template uint8_t elf::getFdeEncoding<ELF32BE>(EhSectionPiece *P);
211template uint8_t elf::getFdeEncoding<ELF64LE>(EhSectionPiece *P);
212template uint8_t elf::getFdeEncoding<ELF64BE>(EhSectionPiece *P);
deps/lld/ELF/EhFrame.h+3-3
...@@ -10,15 +10,15 @@...@@ -10,15 +10,15 @@
10#ifndef LLD_ELF_EHFRAME_H10#ifndef LLD_ELF_EHFRAME_H
11#define LLD_ELF_EHFRAME_H11#define LLD_ELF_EHFRAME_H
1212
13#include "lld/Core/LLVM.h"13#include "lld/Common/LLVM.h"
1414
15namespace lld {15namespace lld {
16namespace elf {16namespace elf {
17class InputSectionBase;17class InputSectionBase;
18struct EhSectionPiece;18struct EhSectionPiece;
1919
20template <class ELFT> size_t readEhRecordSize(InputSectionBase *S, size_t Off);20size_t readEhRecordSize(InputSectionBase *S, size_t Off);
21template <class ELFT> uint8_t getFdeEncoding(EhSectionPiece *P);21uint8_t getFdeEncoding(EhSectionPiece *P);
22} // namespace elf22} // namespace elf
23} // namespace lld23} // namespace lld
2424
deps/lld/ELF/Error.cpp deleted-116
...@@ -1,116 +0,0 @@
1//===- Error.cpp ----------------------------------------------------------===//
2//
3// The LLVM Linker
4//
5// This file is distributed under the University of Illinois Open Source
6// License. See LICENSE.TXT for details.
7//
8//===----------------------------------------------------------------------===//
9
10#include "Error.h"
11#include "Config.h"
12
13#include "llvm/ADT/Twine.h"
14#include "llvm/Support/Error.h"
15#include "llvm/Support/ManagedStatic.h"
16#include "llvm/Support/raw_ostream.h"
17#include <mutex>
18
19#if !defined(_MSC_VER) && !defined(__MINGW32__)
20#include <unistd.h>
21#endif
22
23using namespace llvm;
24
25using namespace lld;
26using namespace lld::elf;
27
28uint64_t elf::ErrorCount;
29raw_ostream *elf::ErrorOS;
30
31// The functions defined in this file can be called from multiple threads,
32// but outs() or errs() are not thread-safe. We protect them using a mutex.
33static std::mutex Mu;
34
35// Prints "\n" or does nothing, depending on Msg contents of
36// the previous call of this function.
37static void newline(const Twine &Msg) {
38 // True if the previous error message contained "\n".
39 // We want to separate multi-line error messages with a newline.
40 static bool Flag;
41
42 if (Flag)
43 *ErrorOS << "\n";
44 Flag = (StringRef(Msg.str()).find('\n') != StringRef::npos);
45}
46
47static void print(StringRef S, raw_ostream::Colors C) {
48 *ErrorOS << Config->Argv[0] << ": ";
49 if (Config->ColorDiagnostics) {
50 ErrorOS->changeColor(C, true);
51 *ErrorOS << S;
52 ErrorOS->resetColor();
53 } else {
54 *ErrorOS << S;
55 }
56}
57
58void elf::log(const Twine &Msg) {
59 if (Config->Verbose) {
60 std::lock_guard<std::mutex> Lock(Mu);
61 outs() << Config->Argv[0] << ": " << Msg << "\n";
62 outs().flush();
63 }
64}
65
66void elf::message(const Twine &Msg) {
67 std::lock_guard<std::mutex> Lock(Mu);
68 outs() << Msg << "\n";
69 outs().flush();
70}
71
72void elf::warn(const Twine &Msg) {
73 if (Config->FatalWarnings) {
74 error(Msg);
75 return;
76 }
77
78 std::lock_guard<std::mutex> Lock(Mu);
79 newline(Msg);
80 print("warning: ", raw_ostream::MAGENTA);
81 *ErrorOS << Msg << "\n";
82}
83
84void elf::error(const Twine &Msg) {
85 std::lock_guard<std::mutex> Lock(Mu);
86 newline(Msg);
87
88 if (Config->ErrorLimit == 0 || ErrorCount < Config->ErrorLimit) {
89 print("error: ", raw_ostream::RED);
90 *ErrorOS << Msg << "\n";
91 } else if (ErrorCount == Config->ErrorLimit) {
92 print("error: ", raw_ostream::RED);
93 *ErrorOS << "too many errors emitted, stopping now"
94 << " (use -error-limit=0 to see all errors)\n";
95 if (Config->ExitEarly)
96 exitLld(1);
97 }
98
99 ++ErrorCount;
100}
101
102void elf::exitLld(int Val) {
103 // Dealloc/destroy ManagedStatic variables before calling
104 // _exit(). In a non-LTO build, this is a nop. In an LTO
105 // build allows us to get the output of -time-passes.
106 llvm_shutdown();
107
108 outs().flush();
109 errs().flush();
110 _exit(Val);
111}
112
113void elf::fatal(const Twine &Msg) {
114 error(Msg);
115 exitLld(1);
116}
deps/lld/ELF/Error.h deleted-78
...@@ -1,78 +0,0 @@
1//===- Error.h --------------------------------------------------*- C++ -*-===//
2//
3// The LLVM Linker
4//
5// This file is distributed under the University of Illinois Open Source
6// License. See LICENSE.TXT for details.
7//
8//===----------------------------------------------------------------------===//
9//
10// In LLD, we have three levels of errors: fatal, error or warn.
11//
12// Fatal makes the program exit immediately with an error message.
13// You shouldn't use it except for reporting a corrupted input file.
14//
15// Error prints out an error message and increment a global variable
16// ErrorCount to record the fact that we met an error condition. It does
17// not exit, so it is safe for a lld-as-a-library use case. It is generally
18// useful because it can report more than one error in a single run.
19//
20// Warn doesn't do anything but printing out a given message.
21//
22// It is not recommended to use llvm::outs() or llvm::errs() directly
23// in LLD because they are not thread-safe. The functions declared in
24// this file are mutually excluded, so you want to use them instead.
25//
26//===----------------------------------------------------------------------===//
27
28#ifndef LLD_ELF_ERROR_H
29#define LLD_ELF_ERROR_H
30
31#include "lld/Core/LLVM.h"
32
33#include "llvm/Support/Error.h"
34
35namespace lld {
36namespace elf {
37
38extern uint64_t ErrorCount;
39extern llvm::raw_ostream *ErrorOS;
40
41void log(const Twine &Msg);
42void message(const Twine &Msg);
43void warn(const Twine &Msg);
44void error(const Twine &Msg);
45LLVM_ATTRIBUTE_NORETURN void fatal(const Twine &Msg);
46
47LLVM_ATTRIBUTE_NORETURN void exitLld(int Val);
48
49// check() functions are convenient functions to strip errors
50// from error-or-value objects.
51template <class T> T check(ErrorOr<T> E) {
52 if (auto EC = E.getError())
53 fatal(EC.message());
54 return std::move(*E);
55}
56
57template <class T> T check(Expected<T> E) {
58 if (!E)
59 fatal(llvm::toString(E.takeError()));
60 return std::move(*E);
61}
62
63template <class T> T check(ErrorOr<T> E, const Twine &Prefix) {
64 if (auto EC = E.getError())
65 fatal(Prefix + ": " + EC.message());
66 return std::move(*E);
67}
68
69template <class T> T check(Expected<T> E, const Twine &Prefix) {
70 if (!E)
71 fatal(Prefix + ": " + toString(E.takeError()));
72 return std::move(*E);
73}
74
75} // namespace elf
76} // namespace lld
77
78#endif
deps/lld/ELF/Filesystem.cpp+27-18
...@@ -13,8 +13,13 @@...@@ -13,8 +13,13 @@
1313
14#include "Filesystem.h"14#include "Filesystem.h"
15#include "Config.h"15#include "Config.h"
16#include "llvm/Support/FileSystem.h"16#include "lld/Common/Threads.h"
17#include "llvm/Config/llvm-config.h"
17#include "llvm/Support/FileOutputBuffer.h"18#include "llvm/Support/FileOutputBuffer.h"
19#include "llvm/Support/FileSystem.h"
20#if LLVM_ON_UNIX
21#include <unistd.h>
22#endif
18#include <thread>23#include <thread>
1924
20using namespace llvm;25using namespace llvm;
...@@ -35,27 +40,29 @@ using namespace lld::elf;...@@ -35,27 +40,29 @@ using namespace lld::elf;
35// Since LLD can link a 1 GB binary in about 5 seconds, that waste40// Since LLD can link a 1 GB binary in about 5 seconds, that waste
36// actually counts.41// actually counts.
37//42//
38// This function spawns a background thread to call unlink.43// This function spawns a background thread to remove the file.
39// The calling thread returns almost immediately.44// The calling thread returns almost immediately.
40void elf::unlinkAsync(StringRef Path) {45void elf::unlinkAsync(StringRef Path) {
41 if (!Config->Threads || !sys::fs::exists(Config->OutputFile) ||46// Removing a file is async on windows.
42 !sys::fs::is_regular_file(Config->OutputFile))47#if defined(LLVM_ON_WIN32)
48 sys::fs::remove(Path);
49#else
50 if (!ThreadsEnabled || !sys::fs::exists(Path) ||
51 !sys::fs::is_regular_file(Path))
43 return;52 return;
4453
45 // First, rename Path to avoid race condition. We cannot remove54 // We cannot just remove path from a different thread because we are now going
46 // Path from a different thread because we are now going to create55 // to create path as a new file.
47 // Path as a new file. If we do that in a different thread, the new56 // Instead we open the file and unlink it on this thread. The unlink is fast
48 // thread can remove the new file.57 // since the open fd guarantees that it is not removing the last reference.
49 SmallString<128> TempPath;58 int FD;
50 if (sys::fs::createUniqueFile(Path + "tmp%%%%%%%%", TempPath))59 std::error_code EC = sys::fs::openFileForRead(Path, FD);
51 return;60 sys::fs::remove(Path);
52 if (sys::fs::rename(Path, TempPath)) {
53 sys::fs::remove(TempPath);
54 return;
55 }
5661
57 // Remove TempPath in background.62 // close and therefore remove TempPath in background.
58 std::thread([=] { ::remove(TempPath.str().str().c_str()); }).detach();63 if (!EC)
64 std::thread([=] { ::close(FD); }).detach();
65#endif
59}66}
6067
61// Simulate file creation to see if Path is writable.68// Simulate file creation to see if Path is writable.
...@@ -73,5 +80,7 @@ void elf::unlinkAsync(StringRef Path) {...@@ -73,5 +80,7 @@ void elf::unlinkAsync(StringRef Path) {
73std::error_code elf::tryCreateFile(StringRef Path) {80std::error_code elf::tryCreateFile(StringRef Path) {
74 if (Path.empty())81 if (Path.empty())
75 return std::error_code();82 return std::error_code();
76 return FileOutputBuffer::create(Path, 1).getError();83 if (Path == "-")
84 return std::error_code();
85 return errorToErrorCode(FileOutputBuffer::create(Path, 1).takeError());
77}86}
deps/lld/ELF/Filesystem.h+2-1
...@@ -10,7 +10,8 @@...@@ -10,7 +10,8 @@
10#ifndef LLD_ELF_FILESYSTEM_H10#ifndef LLD_ELF_FILESYSTEM_H
11#define LLD_ELF_FILESYSTEM_H11#define LLD_ELF_FILESYSTEM_H
1212
13#include "lld/Core/LLVM.h"13#include "lld/Common/LLVM.h"
14#include <system_error>
1415
15namespace lld {16namespace lld {
16namespace elf {17namespace elf {
deps/lld/ELF/GdbIndex.cpp+70-18
...@@ -15,7 +15,8 @@...@@ -15,7 +15,8 @@
15//===----------------------------------------------------------------------===//15//===----------------------------------------------------------------------===//
1616
17#include "GdbIndex.h"17#include "GdbIndex.h"
18#include "Memory.h"18#include "Symbols.h"
19#include "lld/Common/Memory.h"
19#include "llvm/DebugInfo/DWARF/DWARFDebugPubTable.h"20#include "llvm/DebugInfo/DWARF/DWARFDebugPubTable.h"
20#include "llvm/Object/ELFObjectFile.h"21#include "llvm/Object/ELFObjectFile.h"
2122
...@@ -24,26 +25,77 @@ using namespace llvm::object;...@@ -24,26 +25,77 @@ using namespace llvm::object;
24using namespace lld;25using namespace lld;
25using namespace lld::elf;26using namespace lld::elf;
2627
27std::pair<bool, GdbSymbol *> GdbHashTab::add(uint32_t Hash, size_t Offset) {28template <class ELFT> LLDDwarfObj<ELFT>::LLDDwarfObj(ObjFile<ELFT> *Obj) {
28 GdbSymbol *&Sym = Map[Offset];29 for (InputSectionBase *Sec : Obj->getSections()) {
29 if (Sym)30 if (!Sec)
30 return {false, Sym};31 continue;
31 Sym = make<GdbSymbol>(Hash, Offset);32 if (LLDDWARFSection *M = StringSwitch<LLDDWARFSection *>(Sec->Name)
32 return {true, Sym};33 .Case(".debug_info", &InfoSection)
34 .Case(".debug_ranges", &RangeSection)
35 .Case(".debug_line", &LineSection)
36 .Default(nullptr)) {
37 Sec->maybeUncompress();
38 M->Data = toStringRef(Sec->Data);
39 M->Sec = Sec;
40 continue;
41 }
42 if (Sec->Name == ".debug_abbrev")
43 AbbrevSection = toStringRef(Sec->Data);
44 else if (Sec->Name == ".debug_gnu_pubnames")
45 GnuPubNamesSection = toStringRef(Sec->Data);
46 else if (Sec->Name == ".debug_gnu_pubtypes")
47 GnuPubTypesSection = toStringRef(Sec->Data);
48 else if (Sec->Name == ".debug_str")
49 StrSection = toStringRef(Sec->Data);
50 }
33}51}
3452
35void GdbHashTab::finalizeContents() {53// Find if there is a relocation at Pos in Sec. The code is a bit
36 uint32_t Size = std::max<uint32_t>(1024, NextPowerOf2(Map.size() * 4 / 3));54// more complicated than usual because we need to pass a section index
37 uint32_t Mask = Size - 1;55// to llvm since it has no idea about InputSection.
38 Table.resize(Size);56template <class ELFT>
57template <class RelTy>
58Optional<RelocAddrEntry>
59LLDDwarfObj<ELFT>::findAux(const InputSectionBase &Sec, uint64_t Pos,
60 ArrayRef<RelTy> Rels) const {
61 auto It = std::lower_bound(
62 Rels.begin(), Rels.end(), Pos,
63 [](const RelTy &A, uint64_t B) { return A.r_offset < B; });
64 if (It == Rels.end() || It->r_offset != Pos)
65 return None;
66 const RelTy &Rel = *It;
3967
40 for (auto &P : Map) {68 const ObjFile<ELFT> *File = Sec.getFile<ELFT>();
41 GdbSymbol *Sym = P.second;69 uint32_t SymIndex = Rel.getSymbol(Config->IsMips64EL);
42 uint32_t I = Sym->NameHash & Mask;70 const typename ELFT::Sym &Sym = File->getELFSyms()[SymIndex];
43 uint32_t Step = ((Sym->NameHash * 17) & Mask) | 1;71 uint32_t SecIndex = File->getSectionIndex(Sym);
4472
45 while (Table[I])73 // Broken debug info can point to a non-Defined symbol.
46 I = (I + Step) & Mask;74 auto *DR = dyn_cast<Defined>(&File->getRelocTargetSym(Rel));
47 Table[I] = Sym;75 if (!DR) {
76 error("unsupported relocation target while parsing debug info");
77 return None;
48 }78 }
79 uint64_t Val = DR->Value + getAddend<ELFT>(Rel);
80
81 // FIXME: We should be consistent about always adding the file
82 // offset or not.
83 if (DR->Section->Flags & ELF::SHF_ALLOC)
84 Val += cast<InputSection>(DR->Section)->getOffsetInFile();
85
86 return RelocAddrEntry{SecIndex, Val};
49}87}
88
89template <class ELFT>
90Optional<RelocAddrEntry> LLDDwarfObj<ELFT>::find(const llvm::DWARFSection &S,
91 uint64_t Pos) const {
92 auto &Sec = static_cast<const LLDDWARFSection &>(S);
93 if (Sec.Sec->AreRelocsRela)
94 return findAux(*Sec.Sec, Pos, Sec.Sec->template relas<ELFT>());
95 return findAux(*Sec.Sec, Pos, Sec.Sec->template rels<ELFT>());
96}
97
98template class elf::LLDDwarfObj<ELF32LE>;
99template class elf::LLDDwarfObj<ELF32BE>;
100template class elf::LLDDwarfObj<ELF64LE>;
101template class elf::LLDDwarfObj<ELF64BE>;
deps/lld/ELF/GdbIndex.h+39-50
...@@ -19,61 +19,50 @@ namespace elf {...@@ -19,61 +19,50 @@ namespace elf {
1919
20class InputSection;20class InputSection;
2121
22// Struct represents single entry of address area of gdb index.22struct LLDDWARFSection final : public llvm::DWARFSection {
23struct AddressEntry {23 InputSectionBase *Sec = nullptr;
24 InputSection *Section;
25 uint64_t LowAddress;
26 uint64_t HighAddress;
27 uint32_t CuIndex;
28};24};
2925
30// Struct represents single entry of compilation units list area of gdb index.26template <class ELFT> class LLDDwarfObj final : public llvm::DWARFObject {
31// It consist of CU offset in .debug_info section and it's size.27 LLDDWARFSection InfoSection;
32struct CompilationUnitEntry {28 LLDDWARFSection RangeSection;
33 uint64_t CuOffset;29 LLDDWARFSection LineSection;
34 uint64_t CuLength;30 StringRef AbbrevSection;
35};31 StringRef GnuPubNamesSection;
3632 StringRef GnuPubTypesSection;
37// Represents data about symbol and type names which are used33 StringRef StrSection;
38// to build symbol table and constant pool area of gdb index.
39struct NameTypeEntry {
40 StringRef Name;
41 uint8_t Type;
42};
43
44// We fill one GdbIndexDataChunk for each object where scan of
45// debug information performed. That information futher used
46// for filling gdb index section areas.
47struct GdbIndexChunk {
48 InputSection *DebugInfoSec;
49 std::vector<AddressEntry> AddressArea;
50 std::vector<CompilationUnitEntry> CompilationUnits;
51 std::vector<NameTypeEntry> NamesAndTypes;
52};
5334
54// Element of GdbHashTab hash table.35 template <class RelTy>
55struct GdbSymbol {36 llvm::Optional<llvm::RelocAddrEntry> findAux(const InputSectionBase &Sec,
56 GdbSymbol(uint32_t Hash, size_t Offset)37 uint64_t Pos,
57 : NameHash(Hash), NameOffset(Offset) {}38 ArrayRef<RelTy> Rels) const;
58 uint32_t NameHash;
59 size_t NameOffset;
60 size_t CuVectorIndex;
61};
6239
63// This class manages the hashed symbol table for the .gdb_index section.
64// The hash value for a table entry is computed by applying an iterative hash
65// function to the symbol's name.
66class GdbHashTab final {
67public:40public:
68 std::pair<bool, GdbSymbol *> add(uint32_t Hash, size_t Offset);41 explicit LLDDwarfObj(ObjFile<ELFT> *Obj);
6942 const llvm::DWARFSection &getInfoSection() const override {
70 void finalizeContents();43 return InfoSection;
71 size_t getCapacity() { return Table.size(); }44 }
72 GdbSymbol *getSymbol(size_t I) { return Table[I]; }45 const llvm::DWARFSection &getRangeSection() const override {
7346 return RangeSection;
74private:47 }
75 llvm::DenseMap<size_t, GdbSymbol *> Map;48 const llvm::DWARFSection &getLineSection() const override {
76 std::vector<GdbSymbol *> Table;49 return LineSection;
50 }
51 StringRef getFileName() const override { return ""; }
52 StringRef getCUIndexSection() const override { return ""; }
53 StringRef getAbbrevSection() const override { return AbbrevSection; }
54 StringRef getStringSection() const override { return StrSection; }
55 StringRef getGnuPubNamesSection() const override {
56 return GnuPubNamesSection;
57 }
58 StringRef getGnuPubTypesSection() const override {
59 return GnuPubTypesSection;
60 }
61 bool isLittleEndian() const override {
62 return ELFT::TargetEndianness == llvm::support::little;
63 }
64 llvm::Optional<llvm::RelocAddrEntry> find(const llvm::DWARFSection &Sec,
65 uint64_t Pos) const override;
77};66};
7867
79} // namespace elf68} // namespace elf
deps/lld/ELF/ICF.cpp+59-40
...@@ -76,7 +76,8 @@...@@ -76,7 +76,8 @@
76#include "ICF.h"76#include "ICF.h"
77#include "Config.h"77#include "Config.h"
78#include "SymbolTable.h"78#include "SymbolTable.h"
79#include "Threads.h"79#include "Symbols.h"
80#include "lld/Common/Threads.h"
80#include "llvm/ADT/Hashing.h"81#include "llvm/ADT/Hashing.h"
81#include "llvm/BinaryFormat/ELF.h"82#include "llvm/BinaryFormat/ELF.h"
82#include "llvm/Object/ELF.h"83#include "llvm/Object/ELF.h"
...@@ -155,16 +156,20 @@ private:...@@ -155,16 +156,20 @@ private:
155// Returns a hash value for S. Note that the information about156// Returns a hash value for S. Note that the information about
156// relocation targets is not included in the hash value.157// relocation targets is not included in the hash value.
157template <class ELFT> static uint32_t getHash(InputSection *S) {158template <class ELFT> static uint32_t getHash(InputSection *S) {
158 return hash_combine(S->Flags, S->getSize(), S->NumRelocations);159 return hash_combine(S->Flags, S->getSize(), S->NumRelocations, S->Data);
159}160}
160161
161// Returns true if section S is subject of ICF.162// Returns true if section S is subject of ICF.
162static bool isEligible(InputSection *S) {163static bool isEligible(InputSection *S) {
164 // Don't merge read only data sections unless --icf-data was passed.
165 if (!(S->Flags & SHF_EXECINSTR) && !Config->ICFData)
166 return false;
167
163 // .init and .fini contains instructions that must be executed to168 // .init and .fini contains instructions that must be executed to
164 // initialize and finalize the process. They cannot and should not169 // initialize and finalize the process. They cannot and should not
165 // be merged.170 // be merged.
166 return S->Live && (S->Flags & SHF_ALLOC) && (S->Flags & SHF_EXECINSTR) &&171 return S->Live && (S->Flags & SHF_ALLOC) && !(S->Flags & SHF_WRITE) &&
167 !(S->Flags & SHF_WRITE) && S->Name != ".init" && S->Name != ".fini";172 S->Name != ".init" && S->Name != ".fini";
168}173}
169174
170// Split an equivalence class into smaller classes.175// Split an equivalence class into smaller classes.
...@@ -207,38 +212,49 @@ void ICF<ELFT>::segregate(size_t Begin, size_t End, bool Constant) {...@@ -207,38 +212,49 @@ void ICF<ELFT>::segregate(size_t Begin, size_t End, bool Constant) {
207// Compare two lists of relocations.212// Compare two lists of relocations.
208template <class ELFT>213template <class ELFT>
209template <class RelTy>214template <class RelTy>
210bool ICF<ELFT>::constantEq(const InputSection *A, ArrayRef<RelTy> RelsA,215bool ICF<ELFT>::constantEq(const InputSection *SecA, ArrayRef<RelTy> RA,
211 const InputSection *B, ArrayRef<RelTy> RelsB) {216 const InputSection *SecB, ArrayRef<RelTy> RB) {
212 auto Eq = [&](const RelTy &RA, const RelTy &RB) {217 if (RA.size() != RB.size())
213 if (RA.r_offset != RB.r_offset ||218 return false;
214 RA.getType(Config->IsMips64EL) != RB.getType(Config->IsMips64EL))219
220 for (size_t I = 0; I < RA.size(); ++I) {
221 if (RA[I].r_offset != RB[I].r_offset ||
222 RA[I].getType(Config->IsMips64EL) != RB[I].getType(Config->IsMips64EL))
215 return false;223 return false;
216 uint64_t AddA = getAddend<ELFT>(RA);
217 uint64_t AddB = getAddend<ELFT>(RB);
218224
219 SymbolBody &SA = A->template getFile<ELFT>()->getRelocTargetSym(RA);225 uint64_t AddA = getAddend<ELFT>(RA[I]);
220 SymbolBody &SB = B->template getFile<ELFT>()->getRelocTargetSym(RB);226 uint64_t AddB = getAddend<ELFT>(RB[I]);
221 if (&SA == &SB)
222 return AddA == AddB;
223227
224 auto *DA = dyn_cast<DefinedRegular>(&SA);228 Symbol &SA = SecA->template getFile<ELFT>()->getRelocTargetSym(RA[I]);
225 auto *DB = dyn_cast<DefinedRegular>(&SB);229 Symbol &SB = SecB->template getFile<ELFT>()->getRelocTargetSym(RB[I]);
230 if (&SA == &SB) {
231 if (AddA == AddB)
232 continue;
233 return false;
234 }
235
236 auto *DA = dyn_cast<Defined>(&SA);
237 auto *DB = dyn_cast<Defined>(&SB);
226 if (!DA || !DB)238 if (!DA || !DB)
227 return false;239 return false;
228240
229 // Relocations referring to absolute symbols are constant-equal if their241 // Relocations referring to absolute symbols are constant-equal if their
230 // values are equal.242 // values are equal.
243 if (!DA->Section && !DB->Section && DA->Value + AddA == DB->Value + AddB)
244 continue;
231 if (!DA->Section || !DB->Section)245 if (!DA->Section || !DB->Section)
232 return !DA->Section && !DB->Section &&246 return false;
233 DA->Value + AddA == DB->Value + AddB;
234247
235 if (DA->Section->kind() != DB->Section->kind())248 if (DA->Section->kind() != DB->Section->kind())
236 return false;249 return false;
237250
238 // Relocations referring to InputSections are constant-equal if their251 // Relocations referring to InputSections are constant-equal if their
239 // section offsets are equal.252 // section offsets are equal.
240 if (isa<InputSection>(DA->Section))253 if (isa<InputSection>(DA->Section)) {
241 return DA->Value + AddA == DB->Value + AddB;254 if (DA->Value + AddA == DB->Value + AddB)
255 continue;
256 return false;
257 }
242258
243 // Relocations referring to MergeInputSections are constant-equal if their259 // Relocations referring to MergeInputSections are constant-equal if their
244 // offsets in the output section are equal.260 // offsets in the output section are equal.
...@@ -253,11 +269,11 @@ bool ICF<ELFT>::constantEq(const InputSection *A, ArrayRef<RelTy> RelsA,...@@ -253,11 +269,11 @@ bool ICF<ELFT>::constantEq(const InputSection *A, ArrayRef<RelTy> RelsA,
253 SA.isSection() ? X->getOffset(AddA) : X->getOffset(DA->Value) + AddA;269 SA.isSection() ? X->getOffset(AddA) : X->getOffset(DA->Value) + AddA;
254 uint64_t OffsetB =270 uint64_t OffsetB =
255 SB.isSection() ? Y->getOffset(AddB) : Y->getOffset(DB->Value) + AddB;271 SB.isSection() ? Y->getOffset(AddB) : Y->getOffset(DB->Value) + AddB;
256 return OffsetA == OffsetB;272 if (OffsetA != OffsetB)
257 };273 return false;
274 }
258275
259 return RelsA.size() == RelsB.size() &&276 return true;
260 std::equal(RelsA.begin(), RelsA.end(), RelsB.begin(), Eq);
261}277}
262278
263// Compare "non-moving" part of two InputSections, namely everything279// Compare "non-moving" part of two InputSections, namely everything
...@@ -278,37 +294,39 @@ bool ICF<ELFT>::equalsConstant(const InputSection *A, const InputSection *B) {...@@ -278,37 +294,39 @@ bool ICF<ELFT>::equalsConstant(const InputSection *A, const InputSection *B) {
278// relocations point to the same section in terms of ICF.294// relocations point to the same section in terms of ICF.
279template <class ELFT>295template <class ELFT>
280template <class RelTy>296template <class RelTy>
281bool ICF<ELFT>::variableEq(const InputSection *A, ArrayRef<RelTy> RelsA,297bool ICF<ELFT>::variableEq(const InputSection *SecA, ArrayRef<RelTy> RA,
282 const InputSection *B, ArrayRef<RelTy> RelsB) {298 const InputSection *SecB, ArrayRef<RelTy> RB) {
283 auto Eq = [&](const RelTy &RA, const RelTy &RB) {299 assert(RA.size() == RB.size());
300
301 for (size_t I = 0; I < RA.size(); ++I) {
284 // The two sections must be identical.302 // The two sections must be identical.
285 SymbolBody &SA = A->template getFile<ELFT>()->getRelocTargetSym(RA);303 Symbol &SA = SecA->template getFile<ELFT>()->getRelocTargetSym(RA[I]);
286 SymbolBody &SB = B->template getFile<ELFT>()->getRelocTargetSym(RB);304 Symbol &SB = SecB->template getFile<ELFT>()->getRelocTargetSym(RB[I]);
287 if (&SA == &SB)305 if (&SA == &SB)
288 return true;306 continue;
289307
290 auto *DA = cast<DefinedRegular>(&SA);308 auto *DA = cast<Defined>(&SA);
291 auto *DB = cast<DefinedRegular>(&SB);309 auto *DB = cast<Defined>(&SB);
292310
293 // We already dealt with absolute and non-InputSection symbols in311 // We already dealt with absolute and non-InputSection symbols in
294 // constantEq, and for InputSections we have already checked everything312 // constantEq, and for InputSections we have already checked everything
295 // except the equivalence class.313 // except the equivalence class.
296 if (!DA->Section)314 if (!DA->Section)
297 return true;315 continue;
298 auto *X = dyn_cast<InputSection>(DA->Section);316 auto *X = dyn_cast<InputSection>(DA->Section);
299 if (!X)317 if (!X)
300 return true;318 continue;
301 auto *Y = cast<InputSection>(DB->Section);319 auto *Y = cast<InputSection>(DB->Section);
302320
303 // Ineligible sections are in the special equivalence class 0.321 // Ineligible sections are in the special equivalence class 0.
304 // They can never be the same in terms of the equivalence class.322 // They can never be the same in terms of the equivalence class.
305 if (X->Class[Current] == 0)323 if (X->Class[Current] == 0)
306 return false;324 return false;
307325 if (X->Class[Current] != Y->Class[Current])
308 return X->Class[Current] == Y->Class[Current];326 return false;
309 };327 };
310328
311 return std::equal(RelsA.begin(), RelsA.end(), RelsB.begin(), Eq);329 return true;
312}330}
313331
314// Compare "moving" part of two InputSections, namely relocation targets.332// Compare "moving" part of two InputSections, namely relocation targets.
...@@ -353,7 +371,7 @@ template <class ELFT>...@@ -353,7 +371,7 @@ template <class ELFT>
353void ICF<ELFT>::forEachClass(std::function<void(size_t, size_t)> Fn) {371void ICF<ELFT>::forEachClass(std::function<void(size_t, size_t)> Fn) {
354 // If threading is disabled or the number of sections are372 // If threading is disabled or the number of sections are
355 // too small to use threading, call Fn sequentially.373 // too small to use threading, call Fn sequentially.
356 if (!Config->Threads || Sections.size() < 1024) {374 if (!ThreadsEnabled || Sections.size() < 1024) {
357 forEachClassRange(0, Sections.size(), Fn);375 forEachClassRange(0, Sections.size(), Fn);
358 ++Cnt;376 ++Cnt;
359 return;377 return;
...@@ -381,9 +399,10 @@ template <class ELFT> void ICF<ELFT>::run() {...@@ -381,9 +399,10 @@ template <class ELFT> void ICF<ELFT>::run() {
381 Sections.push_back(S);399 Sections.push_back(S);
382400
383 // Initially, we use hash values to partition sections.401 // Initially, we use hash values to partition sections.
384 for (InputSection *S : Sections)402 parallelForEach(Sections, [&](InputSection *S) {
385 // Set MSB to 1 to avoid collisions with non-hash IDs.403 // Set MSB to 1 to avoid collisions with non-hash IDs.
386 S->Class[0] = getHash<ELFT>(S) | (1 << 31);404 S->Class[0] = getHash<ELFT>(S) | (1 << 31);
405 });
387406
388 // From now on, sections in Sections vector are ordered so that sections407 // From now on, sections in Sections vector are ordered so that sections
389 // in the same equivalence class are consecutive in the vector.408 // in the same equivalence class are consecutive in the vector.
deps/lld/ELF/InputFiles.cpp+352-271
...@@ -8,13 +8,13 @@...@@ -8,13 +8,13 @@
8//===----------------------------------------------------------------------===//8//===----------------------------------------------------------------------===//
99
10#include "InputFiles.h"10#include "InputFiles.h"
11#include "Error.h"
12#include "InputSection.h"11#include "InputSection.h"
13#include "LinkerScript.h"12#include "LinkerScript.h"
14#include "Memory.h"
15#include "SymbolTable.h"13#include "SymbolTable.h"
16#include "Symbols.h"14#include "Symbols.h"
17#include "SyntheticSections.h"15#include "SyntheticSections.h"
16#include "lld/Common/ErrorHandler.h"
17#include "lld/Common/Memory.h"
18#include "llvm/ADT/STLExtras.h"18#include "llvm/ADT/STLExtras.h"
19#include "llvm/CodeGen/Analysis.h"19#include "llvm/CodeGen/Analysis.h"
20#include "llvm/DebugInfo/DWARF/DWARFContext.h"20#include "llvm/DebugInfo/DWARF/DWARFContext.h"
...@@ -23,6 +23,8 @@...@@ -23,6 +23,8 @@
23#include "llvm/LTO/LTO.h"23#include "llvm/LTO/LTO.h"
24#include "llvm/MC/StringTableBuilder.h"24#include "llvm/MC/StringTableBuilder.h"
25#include "llvm/Object/ELFObjectFile.h"25#include "llvm/Object/ELFObjectFile.h"
26#include "llvm/Support/ARMAttributeParser.h"
27#include "llvm/Support/ARMBuildAttributes.h"
26#include "llvm/Support/Path.h"28#include "llvm/Support/Path.h"
27#include "llvm/Support/TarWriter.h"29#include "llvm/Support/TarWriter.h"
28#include "llvm/Support/raw_ostream.h"30#include "llvm/Support/raw_ostream.h"
...@@ -30,31 +32,29 @@...@@ -30,31 +32,29 @@
30using namespace llvm;32using namespace llvm;
31using namespace llvm::ELF;33using namespace llvm::ELF;
32using namespace llvm::object;34using namespace llvm::object;
35using namespace llvm::sys;
33using namespace llvm::sys::fs;36using namespace llvm::sys::fs;
3437
35using namespace lld;38using namespace lld;
36using namespace lld::elf;39using namespace lld::elf;
3740
41std::vector<BinaryFile *> elf::BinaryFiles;
42std::vector<BitcodeFile *> elf::BitcodeFiles;
43std::vector<InputFile *> elf::ObjectFiles;
44std::vector<InputFile *> elf::SharedFiles;
45
38TarWriter *elf::Tar;46TarWriter *elf::Tar;
3947
40InputFile::InputFile(Kind K, MemoryBufferRef M) : MB(M), FileKind(K) {}48InputFile::InputFile(Kind K, MemoryBufferRef M) : MB(M), FileKind(K) {}
4149
42namespace {
43// In ELF object file all section addresses are zero. If we have multiple
44// .text sections (when using -ffunction-section or comdat group) then
45// LLVM DWARF parser will not be able to parse .debug_line correctly, unless
46// we assign each section some unique address. This callback method assigns
47// each section an address equal to its offset in ELF object file.
48class ObjectInfo : public LoadedObjectInfoHelper<ObjectInfo> {
49public:
50 uint64_t getSectionLoadAddress(const object::SectionRef &Sec) const override {
51 return static_cast<const ELFSectionRef &>(Sec).getOffset();
52 }
53};
54}
55
56Optional<MemoryBufferRef> elf::readFile(StringRef Path) {50Optional<MemoryBufferRef> elf::readFile(StringRef Path) {
51 // The --chroot option changes our virtual root directory.
52 // This is useful when you are dealing with files created by --reproduce.
53 if (!Config->Chroot.empty() && Path.startswith("/"))
54 Path = Saver.save(Config->Chroot + Path);
55
57 log(Path);56 log(Path);
57
58 auto MBOrErr = MemoryBuffer::getFile(Path);58 auto MBOrErr = MemoryBuffer::getFile(Path);
59 if (auto EC = MBOrErr.getError()) {59 if (auto EC = MBOrErr.getError()) {
60 error("cannot open " + Path + ": " + EC.message());60 error("cannot open " + Path + ": " + EC.message());
...@@ -70,28 +70,132 @@ Optional<MemoryBufferRef> elf::readFile(StringRef Path) {...@@ -70,28 +70,132 @@ Optional<MemoryBufferRef> elf::readFile(StringRef Path) {
70 return MBRef;70 return MBRef;
71}71}
7272
73template <class ELFT> void elf::ObjectFile<ELFT>::initializeDwarfLine() {73// Concatenates arguments to construct a string representing an error location.
74 std::unique_ptr<object::ObjectFile> Obj =74static std::string createFileLineMsg(StringRef Path, unsigned Line) {
75 check(object::ObjectFile::createObjectFile(this->MB), toString(this));75 std::string Filename = path::filename(Path);
76 std::string Lineno = ":" + std::to_string(Line);
77 if (Filename == Path)
78 return Filename + Lineno;
79 return Filename + Lineno + " (" + Path.str() + Lineno + ")";
80}
7681
77 ObjectInfo ObjInfo;82template <class ELFT>
78 DWARFContextInMemory Dwarf(*Obj, &ObjInfo);83static std::string getSrcMsgAux(ObjFile<ELFT> &File, const Symbol &Sym,
84 InputSectionBase &Sec, uint64_t Offset) {
85 // In DWARF, functions and variables are stored to different places.
86 // First, lookup a function for a given offset.
87 if (Optional<DILineInfo> Info = File.getDILineInfo(&Sec, Offset))
88 return createFileLineMsg(Info->FileName, Info->Line);
89
90 // If it failed, lookup again as a variable.
91 if (Optional<std::pair<std::string, unsigned>> FileLine =
92 File.getVariableLoc(Sym.getName()))
93 return createFileLineMsg(FileLine->first, FileLine->second);
94
95 // File.SourceFile contains STT_FILE symbol, and that is a last resort.
96 return File.SourceFile;
97}
98
99std::string InputFile::getSrcMsg(const Symbol &Sym, InputSectionBase &Sec,
100 uint64_t Offset) {
101 if (kind() != ObjKind)
102 return "";
103 switch (Config->EKind) {
104 default:
105 llvm_unreachable("Invalid kind");
106 case ELF32LEKind:
107 return getSrcMsgAux(cast<ObjFile<ELF32LE>>(*this), Sym, Sec, Offset);
108 case ELF32BEKind:
109 return getSrcMsgAux(cast<ObjFile<ELF32BE>>(*this), Sym, Sec, Offset);
110 case ELF64LEKind:
111 return getSrcMsgAux(cast<ObjFile<ELF64LE>>(*this), Sym, Sec, Offset);
112 case ELF64BEKind:
113 return getSrcMsgAux(cast<ObjFile<ELF64BE>>(*this), Sym, Sec, Offset);
114 }
115}
116
117template <class ELFT> void ObjFile<ELFT>::initializeDwarf() {
118 DWARFContext Dwarf(make_unique<LLDDwarfObj<ELFT>>(this));
119 const DWARFObject &Obj = Dwarf.getDWARFObj();
79 DwarfLine.reset(new DWARFDebugLine);120 DwarfLine.reset(new DWARFDebugLine);
80 DWARFDataExtractor LineData(Dwarf.getLineSection(), Config->IsLE,121 DWARFDataExtractor LineData(Obj, Obj.getLineSection(), Config->IsLE,
81 Config->Wordsize);122 Config->Wordsize);
82123
83 // The second parameter is offset in .debug_line section124 // The second parameter is offset in .debug_line section
84 // for compilation unit (CU) of interest. We have only one125 // for compilation unit (CU) of interest. We have only one
85 // CU (object file), so offset is always 0.126 // CU (object file), so offset is always 0.
86 DwarfLine->getOrParseLineTable(LineData, 0);127 // FIXME: Provide the associated DWARFUnit if there is one. DWARF v5
128 // needs it in order to find indirect strings.
129 const DWARFDebugLine::LineTable *LT =
130 DwarfLine->getOrParseLineTable(LineData, 0, nullptr);
131
132 // Return if there is no debug information about CU available.
133 if (!Dwarf.getNumCompileUnits())
134 return;
135
136 // Loop over variable records and insert them to VariableLoc.
137 DWARFCompileUnit *CU = Dwarf.getCompileUnitAtIndex(0);
138 for (const auto &Entry : CU->dies()) {
139 DWARFDie Die(CU, &Entry);
140 // Skip all tags that are not variables.
141 if (Die.getTag() != dwarf::DW_TAG_variable)
142 continue;
143
144 // Skip if a local variable because we don't need them for generating error
145 // messages. In general, only non-local symbols can fail to be linked.
146 if (!dwarf::toUnsigned(Die.find(dwarf::DW_AT_external), 0))
147 continue;
148
149 // Get the source filename index for the variable.
150 unsigned File = dwarf::toUnsigned(Die.find(dwarf::DW_AT_decl_file), 0);
151 if (!LT->hasFileAtIndex(File))
152 continue;
153
154 // Get the line number on which the variable is declared.
155 unsigned Line = dwarf::toUnsigned(Die.find(dwarf::DW_AT_decl_line), 0);
156
157 // Get the name of the variable and add the collected information to
158 // VariableLoc. Usually Name is non-empty, but it can be empty if the input
159 // object file lacks some debug info.
160 StringRef Name = dwarf::toString(Die.find(dwarf::DW_AT_name), "");
161 if (!Name.empty())
162 VariableLoc.insert({Name, {File, Line}});
163 }
164}
165
166// Returns the pair of file name and line number describing location of data
167// object (variable, array, etc) definition.
168template <class ELFT>
169Optional<std::pair<std::string, unsigned>>
170ObjFile<ELFT>::getVariableLoc(StringRef Name) {
171 llvm::call_once(InitDwarfLine, [this]() { initializeDwarf(); });
172
173 // There is always only one CU so it's offset is 0.
174 const DWARFDebugLine::LineTable *LT = DwarfLine->getLineTable(0);
175 if (!LT)
176 return None;
177
178 // Return if we have no debug information about data object.
179 auto It = VariableLoc.find(Name);
180 if (It == VariableLoc.end())
181 return None;
182
183 // Take file name string from line table.
184 std::string FileName;
185 if (!LT->getFileNameByIndex(
186 It->second.first /* File */, nullptr,
187 DILineInfoSpecifier::FileLineInfoKind::AbsoluteFilePath, FileName))
188 return None;
189
190 return std::make_pair(FileName, It->second.second /*Line*/);
87}191}
88192
89// Returns source line information for a given offset193// Returns source line information for a given offset
90// using DWARF debug info.194// using DWARF debug info.
91template <class ELFT>195template <class ELFT>
92Optional<DILineInfo> elf::ObjectFile<ELFT>::getDILineInfo(InputSectionBase *S,196Optional<DILineInfo> ObjFile<ELFT>::getDILineInfo(InputSectionBase *S,
93 uint64_t Offset) {197 uint64_t Offset) {
94 llvm::call_once(InitDwarfLine, [this]() { initializeDwarfLine(); });198 llvm::call_once(InitDwarfLine, [this]() { initializeDwarf(); });
95199
96 // The offset to CU is 0.200 // The offset to CU is 0.
97 const DWARFDebugLine::LineTable *Tbl = DwarfLine->getLineTable(0);201 const DWARFDebugLine::LineTable *Tbl = DwarfLine->getLineTable(0);
...@@ -112,8 +216,7 @@ Optional<DILineInfo> elf::ObjectFile<ELFT>::getDILineInfo(InputSectionBase *S,...@@ -112,8 +216,7 @@ Optional<DILineInfo> elf::ObjectFile<ELFT>::getDILineInfo(InputSectionBase *S,
112// Returns source line information for a given offset216// Returns source line information for a given offset
113// using DWARF debug info.217// using DWARF debug info.
114template <class ELFT>218template <class ELFT>
115std::string elf::ObjectFile<ELFT>::getLineInfo(InputSectionBase *S,219std::string ObjFile<ELFT>::getLineInfo(InputSectionBase *S, uint64_t Offset) {
116 uint64_t Offset) {
117 if (Optional<DILineInfo> Info = getDILineInfo(S, Offset))220 if (Optional<DILineInfo> Info = getDILineInfo(S, Offset))
118 return Info->FileName + ":" + std::to_string(Info->Line);221 return Info->FileName + ":" + std::to_string(Info->Line);
119 return "";222 return "";
...@@ -145,50 +248,41 @@ ELFFileBase<ELFT>::ELFFileBase(Kind K, MemoryBufferRef MB) : InputFile(K, MB) {...@@ -145,50 +248,41 @@ ELFFileBase<ELFT>::ELFFileBase(Kind K, MemoryBufferRef MB) : InputFile(K, MB) {
145}248}
146249
147template <class ELFT>250template <class ELFT>
148typename ELFT::SymRange ELFFileBase<ELFT>::getGlobalSymbols() {251typename ELFT::SymRange ELFFileBase<ELFT>::getGlobalELFSyms() {
149 return makeArrayRef(Symbols.begin() + FirstNonLocal, Symbols.end());252 return makeArrayRef(ELFSyms.begin() + FirstNonLocal, ELFSyms.end());
150}253}
151254
152template <class ELFT>255template <class ELFT>
153uint32_t ELFFileBase<ELFT>::getSectionIndex(const Elf_Sym &Sym) const {256uint32_t ELFFileBase<ELFT>::getSectionIndex(const Elf_Sym &Sym) const {
154 return check(getObj().getSectionIndex(&Sym, Symbols, SymtabSHNDX),257 return CHECK(getObj().getSectionIndex(&Sym, ELFSyms, SymtabSHNDX), this);
155 toString(this));
156}258}
157259
158template <class ELFT>260template <class ELFT>
159void ELFFileBase<ELFT>::initSymtab(ArrayRef<Elf_Shdr> Sections,261void ELFFileBase<ELFT>::initSymtab(ArrayRef<Elf_Shdr> Sections,
160 const Elf_Shdr *Symtab) {262 const Elf_Shdr *Symtab) {
161 FirstNonLocal = Symtab->sh_info;263 FirstNonLocal = Symtab->sh_info;
162 Symbols = check(getObj().symbols(Symtab), toString(this));264 ELFSyms = CHECK(getObj().symbols(Symtab), this);
163 if (FirstNonLocal == 0 || FirstNonLocal > Symbols.size())265 if (FirstNonLocal == 0 || FirstNonLocal > ELFSyms.size())
164 fatal(toString(this) + ": invalid sh_info in symbol table");266 fatal(toString(this) + ": invalid sh_info in symbol table");
165267
166 StringTable = check(getObj().getStringTableForSymtab(*Symtab, Sections),268 StringTable =
167 toString(this));269 CHECK(getObj().getStringTableForSymtab(*Symtab, Sections), this);
168}270}
169271
170template <class ELFT>272template <class ELFT>
171elf::ObjectFile<ELFT>::ObjectFile(MemoryBufferRef M, StringRef ArchiveName)273ObjFile<ELFT>::ObjFile(MemoryBufferRef M, StringRef ArchiveName)
172 : ELFFileBase<ELFT>(Base::ObjectKind, M) {274 : ELFFileBase<ELFT>(Base::ObjKind, M) {
173 this->ArchiveName = ArchiveName;275 this->ArchiveName = ArchiveName;
174}276}
175277
176template <class ELFT>278template <class ELFT> ArrayRef<Symbol *> ObjFile<ELFT>::getLocalSymbols() {
177ArrayRef<SymbolBody *> elf::ObjectFile<ELFT>::getLocalSymbols() {279 if (this->Symbols.empty())
178 if (this->SymbolBodies.empty())280 return {};
179 return this->SymbolBodies;281 return makeArrayRef(this->Symbols).slice(1, this->FirstNonLocal - 1);
180 return makeArrayRef(this->SymbolBodies).slice(1, this->FirstNonLocal - 1);
181}
182
183template <class ELFT>
184ArrayRef<SymbolBody *> elf::ObjectFile<ELFT>::getSymbols() {
185 if (this->SymbolBodies.empty())
186 return this->SymbolBodies;
187 return makeArrayRef(this->SymbolBodies).slice(1);
188}282}
189283
190template <class ELFT>284template <class ELFT>
191void elf::ObjectFile<ELFT>::parse(DenseSet<CachedHashStringRef> &ComdatGroups) {285void ObjFile<ELFT>::parse(DenseSet<CachedHashStringRef> &ComdatGroups) {
192 // Read section and symbol tables.286 // Read section and symbol tables.
193 initializeSections(ComdatGroups);287 initializeSections(ComdatGroups);
194 initializeSymbols();288 initializeSymbols();
...@@ -198,19 +292,17 @@ void elf::ObjectFile<ELFT>::parse(DenseSet<CachedHashStringRef> &ComdatGroups) {...@@ -198,19 +292,17 @@ void elf::ObjectFile<ELFT>::parse(DenseSet<CachedHashStringRef> &ComdatGroups) {
198// They are identified and deduplicated by group name. This function292// They are identified and deduplicated by group name. This function
199// returns a group name.293// returns a group name.
200template <class ELFT>294template <class ELFT>
201StringRef295StringRef ObjFile<ELFT>::getShtGroupSignature(ArrayRef<Elf_Shdr> Sections,
202elf::ObjectFile<ELFT>::getShtGroupSignature(ArrayRef<Elf_Shdr> Sections,296 const Elf_Shdr &Sec) {
203 const Elf_Shdr &Sec) {
204 // Group signatures are stored as symbol names in object files.297 // Group signatures are stored as symbol names in object files.
205 // sh_info contains a symbol index, so we fetch a symbol and read its name.298 // sh_info contains a symbol index, so we fetch a symbol and read its name.
206 if (this->Symbols.empty())299 if (this->ELFSyms.empty())
207 this->initSymtab(300 this->initSymtab(
208 Sections,301 Sections, CHECK(object::getSection<ELFT>(Sections, Sec.sh_link), this));
209 check(object::getSection<ELFT>(Sections, Sec.sh_link), toString(this)));
210302
211 const Elf_Sym *Sym = check(303 const Elf_Sym *Sym =
212 object::getSymbol<ELFT>(this->Symbols, Sec.sh_info), toString(this));304 CHECK(object::getSymbol<ELFT>(this->ELFSyms, Sec.sh_info), this);
213 StringRef Signature = check(Sym->getName(this->StringTable), toString(this));305 StringRef Signature = CHECK(Sym->getName(this->StringTable), this);
214306
215 // As a special case, if a symbol is a section symbol and has no name,307 // As a special case, if a symbol is a section symbol and has no name,
216 // we use a section name as a signature.308 // we use a section name as a signature.
...@@ -225,32 +317,22 @@ elf::ObjectFile<ELFT>::getShtGroupSignature(ArrayRef<Elf_Shdr> Sections,...@@ -225,32 +317,22 @@ elf::ObjectFile<ELFT>::getShtGroupSignature(ArrayRef<Elf_Shdr> Sections,
225}317}
226318
227template <class ELFT>319template <class ELFT>
228ArrayRef<typename elf::ObjectFile<ELFT>::Elf_Word>320ArrayRef<typename ObjFile<ELFT>::Elf_Word>
229elf::ObjectFile<ELFT>::getShtGroupEntries(const Elf_Shdr &Sec) {321ObjFile<ELFT>::getShtGroupEntries(const Elf_Shdr &Sec) {
230 const ELFFile<ELFT> &Obj = this->getObj();322 const ELFFile<ELFT> &Obj = this->getObj();
231 ArrayRef<Elf_Word> Entries = check(323 ArrayRef<Elf_Word> Entries =
232 Obj.template getSectionContentsAsArray<Elf_Word>(&Sec), toString(this));324 CHECK(Obj.template getSectionContentsAsArray<Elf_Word>(&Sec), this);
233 if (Entries.empty() || Entries[0] != GRP_COMDAT)325 if (Entries.empty() || Entries[0] != GRP_COMDAT)
234 fatal(toString(this) + ": unsupported SHT_GROUP format");326 fatal(toString(this) + ": unsupported SHT_GROUP format");
235 return Entries.slice(1);327 return Entries.slice(1);
236}328}
237329
238template <class ELFT>330template <class ELFT> bool ObjFile<ELFT>::shouldMerge(const Elf_Shdr &Sec) {
239bool elf::ObjectFile<ELFT>::shouldMerge(const Elf_Shdr &Sec) {
240 // We don't merge sections if -O0 (default is -O1). This makes sometimes331 // We don't merge sections if -O0 (default is -O1). This makes sometimes
241 // the linker significantly faster, although the output will be bigger.332 // the linker significantly faster, although the output will be bigger.
242 if (Config->Optimize == 0)333 if (Config->Optimize == 0)
243 return false;334 return false;
244335
245 // Do not merge sections if generating a relocatable object. It makes
246 // the code simpler because we do not need to update relocation addends
247 // to reflect changes introduced by merging. Instead of that we write
248 // such "merge" sections into separate OutputSections and keep SHF_MERGE
249 // / SHF_STRINGS flags and sh_entsize value to be able to perform merging
250 // later during a final linking.
251 if (Config->Relocatable)
252 return false;
253
254 // A mergeable section with size 0 is useless because they don't have336 // A mergeable section with size 0 is useless because they don't have
255 // any data to merge. A mergeable string section with size 0 can be337 // any data to merge. A mergeable string section with size 0 can be
256 // argued as invalid because it doesn't end with a null character.338 // argued as invalid because it doesn't end with a null character.
...@@ -276,29 +358,19 @@ bool elf::ObjectFile<ELFT>::shouldMerge(const Elf_Shdr &Sec) {...@@ -276,29 +358,19 @@ bool elf::ObjectFile<ELFT>::shouldMerge(const Elf_Shdr &Sec) {
276 if (Flags & SHF_WRITE)358 if (Flags & SHF_WRITE)
277 fatal(toString(this) + ": writable SHF_MERGE section is not supported");359 fatal(toString(this) + ": writable SHF_MERGE section is not supported");
278360
279 // Don't try to merge if the alignment is larger than the sh_entsize and this361 return true;
280 // is not SHF_STRINGS.
281 //
282 // Since this is not a SHF_STRINGS, we would need to pad after every entity.
283 // It would be equivalent for the producer of the .o to just set a larger
284 // sh_entsize.
285 if (Flags & SHF_STRINGS)
286 return true;
287
288 return Sec.sh_addralign <= EntSize;
289}362}
290363
291template <class ELFT>364template <class ELFT>
292void elf::ObjectFile<ELFT>::initializeSections(365void ObjFile<ELFT>::initializeSections(
293 DenseSet<CachedHashStringRef> &ComdatGroups) {366 DenseSet<CachedHashStringRef> &ComdatGroups) {
294 const ELFFile<ELFT> &Obj = this->getObj();367 const ELFFile<ELFT> &Obj = this->getObj();
295368
296 ArrayRef<Elf_Shdr> ObjSections =369 ArrayRef<Elf_Shdr> ObjSections = CHECK(this->getObj().sections(), this);
297 check(this->getObj().sections(), toString(this));
298 uint64_t Size = ObjSections.size();370 uint64_t Size = ObjSections.size();
299 this->Sections.resize(Size);371 this->Sections.resize(Size);
300 this->SectionStringTable =372 this->SectionStringTable =
301 check(Obj.getSectionStringTable(ObjSections), toString(this));373 CHECK(Obj.getSectionStringTable(ObjSections), this);
302374
303 for (size_t I = 0, E = ObjSections.size(); I < E; I++) {375 for (size_t I = 0, E = ObjSections.size(); I < E; I++) {
304 if (this->Sections[I] == &InputSection::Discarded)376 if (this->Sections[I] == &InputSection::Discarded)
...@@ -344,8 +416,7 @@ void elf::ObjectFile<ELFT>::initializeSections(...@@ -344,8 +416,7 @@ void elf::ObjectFile<ELFT>::initializeSections(
344 this->initSymtab(ObjSections, &Sec);416 this->initSymtab(ObjSections, &Sec);
345 break;417 break;
346 case SHT_SYMTAB_SHNDX:418 case SHT_SYMTAB_SHNDX:
347 this->SymtabSHNDX =419 this->SymtabSHNDX = CHECK(Obj.getSHNDXTable(Sec, ObjSections), this);
348 check(Obj.getSHNDXTable(Sec, ObjSections), toString(this));
349 break;420 break;
350 case SHT_STRTAB:421 case SHT_STRTAB:
351 case SHT_NULL:422 case SHT_NULL:
...@@ -358,16 +429,58 @@ void elf::ObjectFile<ELFT>::initializeSections(...@@ -358,16 +429,58 @@ void elf::ObjectFile<ELFT>::initializeSections(
358 // have a SHF_LINK_ORDER dependency, this is identified by the sh_link.429 // have a SHF_LINK_ORDER dependency, this is identified by the sh_link.
359 if (Sec.sh_flags & SHF_LINK_ORDER) {430 if (Sec.sh_flags & SHF_LINK_ORDER) {
360 if (Sec.sh_link >= this->Sections.size())431 if (Sec.sh_link >= this->Sections.size())
361 fatal(toString(this) + ": invalid sh_link index: " +432 fatal(toString(this) +
362 Twine(Sec.sh_link));433 ": invalid sh_link index: " + Twine(Sec.sh_link));
363 this->Sections[Sec.sh_link]->DependentSections.push_back(434 this->Sections[Sec.sh_link]->DependentSections.push_back(
364 this->Sections[I]);435 cast<InputSection>(this->Sections[I]));
365 }436 }
366 }437 }
367}438}
368439
440// The ARM support in lld makes some use of instructions that are not available
441// on all ARM architectures. Namely:
442// - Use of BLX instruction for interworking between ARM and Thumb state.
443// - Use of the extended Thumb branch encoding in relocation.
444// - Use of the MOVT/MOVW instructions in Thumb Thunks.
445// The ARM Attributes section contains information about the architecture chosen
446// at compile time. We follow the convention that if at least one input object
447// is compiled with an architecture that supports these features then lld is
448// permitted to use them.
449static void updateSupportedARMFeatures(const ARMAttributeParser &Attributes) {
450 if (!Attributes.hasAttribute(ARMBuildAttrs::CPU_arch))
451 return;
452 auto Arch = Attributes.getAttributeValue(ARMBuildAttrs::CPU_arch);
453 switch (Arch) {
454 case ARMBuildAttrs::Pre_v4:
455 case ARMBuildAttrs::v4:
456 case ARMBuildAttrs::v4T:
457 // Architectures prior to v5 do not support BLX instruction
458 break;
459 case ARMBuildAttrs::v5T:
460 case ARMBuildAttrs::v5TE:
461 case ARMBuildAttrs::v5TEJ:
462 case ARMBuildAttrs::v6:
463 case ARMBuildAttrs::v6KZ:
464 case ARMBuildAttrs::v6K:
465 Config->ARMHasBlx = true;
466 // Architectures used in pre-Cortex processors do not support
467 // The J1 = 1 J2 = 1 Thumb branch range extension, with the exception
468 // of Architecture v6T2 (arm1156t2-s and arm1156t2f-s) that do.
469 break;
470 default:
471 // All other Architectures have BLX and extended branch encoding
472 Config->ARMHasBlx = true;
473 Config->ARMJ1J2BranchEncoding = true;
474 if (Arch != ARMBuildAttrs::v6_M && Arch != ARMBuildAttrs::v6S_M)
475 // All Architectures used in Cortex processors with the exception
476 // of v6-M and v6S-M have the MOVT and MOVW instructions.
477 Config->ARMHasMovtMovw = true;
478 break;
479 }
480}
481
369template <class ELFT>482template <class ELFT>
370InputSectionBase *elf::ObjectFile<ELFT>::getRelocTarget(const Elf_Shdr &Sec) {483InputSectionBase *ObjFile<ELFT>::getRelocTarget(const Elf_Shdr &Sec) {
371 uint32_t Idx = Sec.sh_info;484 uint32_t Idx = Sec.sh_info;
372 if (Idx >= this->Sections.size())485 if (Idx >= this->Sections.size())
373 fatal(toString(this) + ": invalid relocated section index: " + Twine(Idx));486 fatal(toString(this) + ": invalid relocated section index: " + Twine(Idx));
...@@ -386,29 +499,32 @@ InputSectionBase *elf::ObjectFile<ELFT>::getRelocTarget(const Elf_Shdr &Sec) {...@@ -386,29 +499,32 @@ InputSectionBase *elf::ObjectFile<ELFT>::getRelocTarget(const Elf_Shdr &Sec) {
386499
387// Create a regular InputSection class that has the same contents500// Create a regular InputSection class that has the same contents
388// as a given section.501// as a given section.
389InputSectionBase *toRegularSection(MergeInputSection *Sec) {502static InputSection *toRegularSection(MergeInputSection *Sec) {
390 auto *Ret = make<InputSection>(Sec->Flags, Sec->Type, Sec->Alignment,503 return make<InputSection>(Sec->File, Sec->Flags, Sec->Type, Sec->Alignment,
391 Sec->Data, Sec->Name);504 Sec->Data, Sec->Name);
392 Ret->File = Sec->File;
393 return Ret;
394}505}
395506
396template <class ELFT>507template <class ELFT>
397InputSectionBase *508InputSectionBase *ObjFile<ELFT>::createInputSection(const Elf_Shdr &Sec) {
398elf::ObjectFile<ELFT>::createInputSection(const Elf_Shdr &Sec) {
399 StringRef Name = getSectionName(Sec);509 StringRef Name = getSectionName(Sec);
400510
401 switch (Sec.sh_type) {511 switch (Sec.sh_type) {
402 case SHT_ARM_ATTRIBUTES:512 case SHT_ARM_ATTRIBUTES: {
403 // FIXME: ARM meta-data section. Retain the first attribute section513 if (Config->EMachine != EM_ARM)
404 // we see. The eglibc ARM dynamic loaders require the presence of an514 break;
405 // attribute section for dlopen to work.515 ARMAttributeParser Attributes;
406 // In a full implementation we would merge all attribute sections.516 ArrayRef<uint8_t> Contents = check(this->getObj().getSectionContents(&Sec));
517 Attributes.Parse(Contents, /*isLittle*/ Config->EKind == ELF32LEKind);
518 updateSupportedARMFeatures(Attributes);
519 // FIXME: Retain the first attribute section we see. The eglibc ARM
520 // dynamic loaders require the presence of an attribute section for dlopen
521 // to work. In a full implementation we would merge all attribute sections.
407 if (InX::ARMAttributes == nullptr) {522 if (InX::ARMAttributes == nullptr) {
408 InX::ARMAttributes = make<InputSection>(this, &Sec, Name);523 InX::ARMAttributes = make<InputSection>(*this, Sec, Name);
409 return InX::ARMAttributes;524 return InX::ARMAttributes;
410 }525 }
411 return &InputSection::Discarded;526 return &InputSection::Discarded;
527 }
412 case SHT_RELA:528 case SHT_RELA:
413 case SHT_REL: {529 case SHT_REL: {
414 // Find the relocation target section and associate this530 // Find the relocation target section and associate this
...@@ -423,7 +539,7 @@ elf::ObjectFile<ELFT>::createInputSection(const Elf_Shdr &Sec) {...@@ -423,7 +539,7 @@ elf::ObjectFile<ELFT>::createInputSection(const Elf_Shdr &Sec) {
423 // If -r is given, we do not interpret or apply relocation539 // If -r is given, we do not interpret or apply relocation
424 // but just copy relocation sections to output.540 // but just copy relocation sections to output.
425 if (Config->Relocatable)541 if (Config->Relocatable)
426 return make<InputSection>(this, &Sec, Name);542 return make<InputSection>(*this, Sec, Name);
427543
428 if (Target->FirstRelocation)544 if (Target->FirstRelocation)
429 fatal(toString(this) +545 fatal(toString(this) +
...@@ -443,13 +559,12 @@ elf::ObjectFile<ELFT>::createInputSection(const Elf_Shdr &Sec) {...@@ -443,13 +559,12 @@ elf::ObjectFile<ELFT>::createInputSection(const Elf_Shdr &Sec) {
443559
444 size_t NumRelocations;560 size_t NumRelocations;
445 if (Sec.sh_type == SHT_RELA) {561 if (Sec.sh_type == SHT_RELA) {
446 ArrayRef<Elf_Rela> Rels =562 ArrayRef<Elf_Rela> Rels = CHECK(this->getObj().relas(&Sec), this);
447 check(this->getObj().relas(&Sec), toString(this));
448 Target->FirstRelocation = Rels.begin();563 Target->FirstRelocation = Rels.begin();
449 NumRelocations = Rels.size();564 NumRelocations = Rels.size();
450 Target->AreRelocsRela = true;565 Target->AreRelocsRela = true;
451 } else {566 } else {
452 ArrayRef<Elf_Rel> Rels = check(this->getObj().rels(&Sec), toString(this));567 ArrayRef<Elf_Rel> Rels = CHECK(this->getObj().rels(&Sec), this);
453 Target->FirstRelocation = Rels.begin();568 Target->FirstRelocation = Rels.begin();
454 NumRelocations = Rels.size();569 NumRelocations = Rels.size();
455 Target->AreRelocsRela = false;570 Target->AreRelocsRela = false;
...@@ -462,7 +577,7 @@ elf::ObjectFile<ELFT>::createInputSection(const Elf_Shdr &Sec) {...@@ -462,7 +577,7 @@ elf::ObjectFile<ELFT>::createInputSection(const Elf_Shdr &Sec) {
462 // However, if -emit-relocs is given, we need to leave them in the output.577 // However, if -emit-relocs is given, we need to leave them in the output.
463 // (Some post link analysis tools need this information.)578 // (Some post link analysis tools need this information.)
464 if (Config->EmitRelocs) {579 if (Config->EmitRelocs) {
465 InputSection *RelocSec = make<InputSection>(this, &Sec, Name);580 InputSection *RelocSec = make<InputSection>(*this, Sec, Name);
466 // We will not emit relocation section if target was discarded.581 // We will not emit relocation section if target was discarded.
467 Target->DependentSections.push_back(RelocSec);582 Target->DependentSections.push_back(RelocSec);
468 return RelocSec;583 return RelocSec;
...@@ -497,18 +612,6 @@ elf::ObjectFile<ELFT>::createInputSection(const Elf_Shdr &Sec) {...@@ -497,18 +612,6 @@ elf::ObjectFile<ELFT>::createInputSection(const Elf_Shdr &Sec) {
497 return &InputSection::Discarded;612 return &InputSection::Discarded;
498 }613 }
499614
500 if (Config->Strip != StripPolicy::None && Name.startswith(".debug"))
501 return &InputSection::Discarded;
502
503 // If -gdb-index is given, LLD creates .gdb_index section, and that
504 // section serves the same purpose as .debug_gnu_pub{names,types} sections.
505 // If that's the case, we want to eliminate .debug_gnu_pub{names,types}
506 // because they are redundant and can waste large amount of disk space
507 // (for example, they are about 400 MiB in total for a clang debug build.)
508 if (Config->GdbIndex &&
509 (Name == ".debug_gnu_pubnames" || Name == ".debug_gnu_pubtypes"))
510 return &InputSection::Discarded;
511
512 // The linkonce feature is a sort of proto-comdat. Some glibc i386 object615 // The linkonce feature is a sort of proto-comdat. Some glibc i386 object
513 // files contain definitions of symbol "__x86.get_pc_thunk.bx" in linkonce616 // files contain definitions of symbol "__x86.get_pc_thunk.bx" in linkonce
514 // sections. Drop those sections to avoid duplicate symbol errors.617 // sections. Drop those sections to avoid duplicate symbol errors.
...@@ -521,54 +624,32 @@ elf::ObjectFile<ELFT>::createInputSection(const Elf_Shdr &Sec) {...@@ -521,54 +624,32 @@ elf::ObjectFile<ELFT>::createInputSection(const Elf_Shdr &Sec) {
521 // .eh_frame_hdr section for runtime. So we handle them with a special624 // .eh_frame_hdr section for runtime. So we handle them with a special
522 // class. For relocatable outputs, they are just passed through.625 // class. For relocatable outputs, they are just passed through.
523 if (Name == ".eh_frame" && !Config->Relocatable)626 if (Name == ".eh_frame" && !Config->Relocatable)
524 return make<EhInputSection>(this, &Sec, Name);627 return make<EhInputSection>(*this, Sec, Name);
525628
526 if (shouldMerge(Sec))629 if (shouldMerge(Sec))
527 return make<MergeInputSection>(this, &Sec, Name);630 return make<MergeInputSection>(*this, Sec, Name);
528 return make<InputSection>(this, &Sec, Name);631 return make<InputSection>(*this, Sec, Name);
529}632}
530633
531template <class ELFT>634template <class ELFT>
532StringRef elf::ObjectFile<ELFT>::getSectionName(const Elf_Shdr &Sec) {635StringRef ObjFile<ELFT>::getSectionName(const Elf_Shdr &Sec) {
533 return check(this->getObj().getSectionName(&Sec, SectionStringTable),636 return CHECK(this->getObj().getSectionName(&Sec, SectionStringTable), this);
534 toString(this));
535}637}
536638
537template <class ELFT> void elf::ObjectFile<ELFT>::initializeSymbols() {639template <class ELFT> void ObjFile<ELFT>::initializeSymbols() {
538 SymbolBodies.reserve(this->Symbols.size());640 this->Symbols.reserve(this->ELFSyms.size());
539 for (const Elf_Sym &Sym : this->Symbols)641 for (const Elf_Sym &Sym : this->ELFSyms)
540 SymbolBodies.push_back(createSymbolBody(&Sym));642 this->Symbols.push_back(createSymbol(&Sym));
541}643}
542644
543template <class ELFT>645template <class ELFT> Symbol *ObjFile<ELFT>::createSymbol(const Elf_Sym *Sym) {
544InputSectionBase *elf::ObjectFile<ELFT>::getSection(const Elf_Sym &Sym) const {
545 uint32_t Index = this->getSectionIndex(Sym);
546 if (Index >= this->Sections.size())
547 fatal(toString(this) + ": invalid section index: " + Twine(Index));
548 InputSectionBase *S = this->Sections[Index];
549
550 // We found that GNU assembler 2.17.50 [FreeBSD] 2007-07-03 could
551 // generate broken objects. STT_SECTION/STT_NOTYPE symbols can be
552 // associated with SHT_REL[A]/SHT_SYMTAB/SHT_STRTAB sections.
553 // In this case it is fine for section to be null here as we do not
554 // allocate sections of these types.
555 if (!S) {
556 if (Index == 0 || Sym.getType() == STT_SECTION ||
557 Sym.getType() == STT_NOTYPE)
558 return nullptr;
559 fatal(toString(this) + ": invalid section index: " + Twine(Index));
560 }
561
562 if (S == &InputSection::Discarded)
563 return S;
564 return S->Repl;
565}
566
567template <class ELFT>
568SymbolBody *elf::ObjectFile<ELFT>::createSymbolBody(const Elf_Sym *Sym) {
569 int Binding = Sym->getBinding();646 int Binding = Sym->getBinding();
570 InputSectionBase *Sec = getSection(*Sym);
571647
648 uint32_t SecIdx = this->getSectionIndex(*Sym);
649 if (SecIdx >= this->Sections.size())
650 fatal(toString(this) + ": invalid section index: " + Twine(SecIdx));
651
652 InputSectionBase *Sec = this->Sections[SecIdx];
572 uint8_t StOther = Sym->st_other;653 uint8_t StOther = Sym->st_other;
573 uint8_t Type = Sym->getType();654 uint8_t Type = Sym->getType();
574 uint64_t Value = Sym->st_value;655 uint64_t Value = Sym->st_value;
...@@ -576,34 +657,29 @@ SymbolBody *elf::ObjectFile<ELFT>::createSymbolBody(const Elf_Sym *Sym) {...@@ -576,34 +657,29 @@ SymbolBody *elf::ObjectFile<ELFT>::createSymbolBody(const Elf_Sym *Sym) {
576657
577 if (Binding == STB_LOCAL) {658 if (Binding == STB_LOCAL) {
578 if (Sym->getType() == STT_FILE)659 if (Sym->getType() == STT_FILE)
579 SourceFile = check(Sym->getName(this->StringTable), toString(this));660 SourceFile = CHECK(Sym->getName(this->StringTable), this);
580661
581 if (this->StringTable.size() <= Sym->st_name)662 if (this->StringTable.size() <= Sym->st_name)
582 fatal(toString(this) + ": invalid symbol name offset");663 fatal(toString(this) + ": invalid symbol name offset");
583664
584 StringRefZ Name = this->StringTable.data() + Sym->st_name;665 StringRefZ Name = this->StringTable.data() + Sym->st_name;
585 if (Sym->st_shndx == SHN_UNDEF)666 if (Sym->st_shndx == SHN_UNDEF)
586 return make<Undefined>(Name, /*IsLocal=*/true, StOther, Type, this);667 return make<Undefined>(this, Name, Binding, StOther, Type);
587668
588 return make<DefinedRegular>(Name, /*IsLocal=*/true, StOther, Type, Value,669 return make<Defined>(this, Name, Binding, StOther, Type, Value, Size, Sec);
589 Size, Sec, this);
590 }670 }
591671
592 StringRef Name = check(Sym->getName(this->StringTable), toString(this));672 StringRef Name = CHECK(Sym->getName(this->StringTable), this);
593673
594 switch (Sym->st_shndx) {674 switch (Sym->st_shndx) {
595 case SHN_UNDEF:675 case SHN_UNDEF:
596 return elf::Symtab<ELFT>::X676 return Symtab->addUndefined<ELFT>(Name, Binding, StOther, Type,
597 ->addUndefined(Name, /*IsLocal=*/false, Binding, StOther, Type,677 /*CanOmitFromDynSym=*/false, this);
598 /*CanOmitFromDynSym=*/false, this)
599 ->body();
600 case SHN_COMMON:678 case SHN_COMMON:
601 if (Value == 0 || Value >= UINT32_MAX)679 if (Value == 0 || Value >= UINT32_MAX)
602 fatal(toString(this) + ": common symbol '" + Name +680 fatal(toString(this) + ": common symbol '" + Name +
603 "' has invalid alignment: " + Twine(Value));681 "' has invalid alignment: " + Twine(Value));
604 return elf::Symtab<ELFT>::X682 return Symtab->addCommon(Name, Size, Value, Binding, StOther, Type, *this);
605 ->addCommon(Name, Size, Value, Binding, StOther, Type, this)
606 ->body();
607 }683 }
608684
609 switch (Binding) {685 switch (Binding) {
...@@ -613,13 +689,10 @@ SymbolBody *elf::ObjectFile<ELFT>::createSymbolBody(const Elf_Sym *Sym) {...@@ -613,13 +689,10 @@ SymbolBody *elf::ObjectFile<ELFT>::createSymbolBody(const Elf_Sym *Sym) {
613 case STB_WEAK:689 case STB_WEAK:
614 case STB_GNU_UNIQUE:690 case STB_GNU_UNIQUE:
615 if (Sec == &InputSection::Discarded)691 if (Sec == &InputSection::Discarded)
616 return elf::Symtab<ELFT>::X692 return Symtab->addUndefined<ELFT>(Name, Binding, StOther, Type,
617 ->addUndefined(Name, /*IsLocal=*/false, Binding, StOther, Type,693 /*CanOmitFromDynSym=*/false, this);
618 /*CanOmitFromDynSym=*/false, this)694 return Symtab->addRegular(Name, StOther, Type, Value, Size, Binding, Sec,
619 ->body();695 this);
620 return elf::Symtab<ELFT>::X
621 ->addRegular(Name, StOther, Type, Value, Size, Binding, Sec, this)
622 ->body();
623 }696 }
624}697}
625698
...@@ -630,14 +703,14 @@ ArchiveFile::ArchiveFile(std::unique_ptr<Archive> &&File)...@@ -630,14 +703,14 @@ ArchiveFile::ArchiveFile(std::unique_ptr<Archive> &&File)
630template <class ELFT> void ArchiveFile::parse() {703template <class ELFT> void ArchiveFile::parse() {
631 Symbols.reserve(File->getNumberOfSymbols());704 Symbols.reserve(File->getNumberOfSymbols());
632 for (const Archive::Symbol &Sym : File->symbols())705 for (const Archive::Symbol &Sym : File->symbols())
633 Symbols.push_back(Symtab<ELFT>::X->addLazyArchive(this, Sym));706 Symbols.push_back(Symtab->addLazyArchive<ELFT>(Sym.getName(), *this, Sym));
634}707}
635708
636// Returns a buffer pointing to a member file containing a given symbol.709// Returns a buffer pointing to a member file containing a given symbol.
637std::pair<MemoryBufferRef, uint64_t>710std::pair<MemoryBufferRef, uint64_t>
638ArchiveFile::getMember(const Archive::Symbol *Sym) {711ArchiveFile::getMember(const Archive::Symbol *Sym) {
639 Archive::Child C =712 Archive::Child C =
640 check(Sym->getMember(), toString(this) +713 CHECK(Sym->getMember(), toString(this) +
641 ": could not get the member for symbol " +714 ": could not get the member for symbol " +
642 Sym->getName());715 Sym->getName());
643716
...@@ -645,14 +718,13 @@ ArchiveFile::getMember(const Archive::Symbol *Sym) {...@@ -645,14 +718,13 @@ ArchiveFile::getMember(const Archive::Symbol *Sym) {
645 return {MemoryBufferRef(), 0};718 return {MemoryBufferRef(), 0};
646719
647 MemoryBufferRef Ret =720 MemoryBufferRef Ret =
648 check(C.getMemoryBufferRef(),721 CHECK(C.getMemoryBufferRef(),
649 toString(this) +722 toString(this) +
650 ": could not get the buffer for the member defining symbol " +723 ": could not get the buffer for the member defining symbol " +
651 Sym->getName());724 Sym->getName());
652725
653 if (C.getParent()->isThin() && Tar)726 if (C.getParent()->isThin() && Tar)
654 Tar->append(relativeToRoot(check(C.getFullName(), toString(this))),727 Tar->append(relativeToRoot(CHECK(C.getFullName(), this)), Ret.getBuffer());
655 Ret.getBuffer());
656 if (C.getParent()->isThin())728 if (C.getParent()->isThin())
657 return {Ret, 0};729 return {Ret, 0};
658 return {Ret, C.getChildOffset()};730 return {Ret, C.getChildOffset()};
...@@ -661,22 +733,14 @@ ArchiveFile::getMember(const Archive::Symbol *Sym) {...@@ -661,22 +733,14 @@ ArchiveFile::getMember(const Archive::Symbol *Sym) {
661template <class ELFT>733template <class ELFT>
662SharedFile<ELFT>::SharedFile(MemoryBufferRef M, StringRef DefaultSoName)734SharedFile<ELFT>::SharedFile(MemoryBufferRef M, StringRef DefaultSoName)
663 : ELFFileBase<ELFT>(Base::SharedKind, M), SoName(DefaultSoName),735 : ELFFileBase<ELFT>(Base::SharedKind, M), SoName(DefaultSoName),
664 AsNeeded(Config->AsNeeded) {}736 IsNeeded(!Config->AsNeeded) {}
665
666template <class ELFT>
667const typename ELFT::Shdr *
668SharedFile<ELFT>::getSection(const Elf_Sym &Sym) const {
669 return check(
670 this->getObj().getSection(&Sym, this->Symbols, this->SymtabSHNDX),
671 toString(this));
672}
673737
674// Partially parse the shared object file so that we can call738// Partially parse the shared object file so that we can call
675// getSoName on this object.739// getSoName on this object.
676template <class ELFT> void SharedFile<ELFT>::parseSoName() {740template <class ELFT> void SharedFile<ELFT>::parseSoName() {
677 const Elf_Shdr *DynamicSec = nullptr;741 const Elf_Shdr *DynamicSec = nullptr;
678 const ELFFile<ELFT> Obj = this->getObj();742 const ELFFile<ELFT> Obj = this->getObj();
679 ArrayRef<Elf_Shdr> Sections = check(Obj.sections(), toString(this));743 ArrayRef<Elf_Shdr> Sections = CHECK(Obj.sections(), this);
680744
681 // Search for .dynsym, .dynamic, .symtab, .gnu.version and .gnu.version_d.745 // Search for .dynsym, .dynamic, .symtab, .gnu.version and .gnu.version_d.
682 for (const Elf_Shdr &Sec : Sections) {746 for (const Elf_Shdr &Sec : Sections) {
...@@ -690,8 +754,7 @@ template <class ELFT> void SharedFile<ELFT>::parseSoName() {...@@ -690,8 +754,7 @@ template <class ELFT> void SharedFile<ELFT>::parseSoName() {
690 DynamicSec = &Sec;754 DynamicSec = &Sec;
691 break;755 break;
692 case SHT_SYMTAB_SHNDX:756 case SHT_SYMTAB_SHNDX:
693 this->SymtabSHNDX =757 this->SymtabSHNDX = CHECK(Obj.getSHNDXTable(Sec, Sections), this);
694 check(Obj.getSHNDXTable(Sec, Sections), toString(this));
695 break;758 break;
696 case SHT_GNU_versym:759 case SHT_GNU_versym:
697 this->VersymSec = &Sec;760 this->VersymSec = &Sec;
...@@ -702,15 +765,14 @@ template <class ELFT> void SharedFile<ELFT>::parseSoName() {...@@ -702,15 +765,14 @@ template <class ELFT> void SharedFile<ELFT>::parseSoName() {
702 }765 }
703 }766 }
704767
705 if (this->VersymSec && this->Symbols.empty())768 if (this->VersymSec && this->ELFSyms.empty())
706 error("SHT_GNU_versym should be associated with symbol table");769 error("SHT_GNU_versym should be associated with symbol table");
707770
708 // Search for a DT_SONAME tag to initialize this->SoName.771 // Search for a DT_SONAME tag to initialize this->SoName.
709 if (!DynamicSec)772 if (!DynamicSec)
710 return;773 return;
711 ArrayRef<Elf_Dyn> Arr =774 ArrayRef<Elf_Dyn> Arr =
712 check(Obj.template getSectionContentsAsArray<Elf_Dyn>(DynamicSec),775 CHECK(Obj.template getSectionContentsAsArray<Elf_Dyn>(DynamicSec), this);
713 toString(this));
714 for (const Elf_Dyn &Dyn : Arr) {776 for (const Elf_Dyn &Dyn : Arr) {
715 if (Dyn.d_tag == DT_SONAME) {777 if (Dyn.d_tag == DT_SONAME) {
716 uint64_t Val = Dyn.getVal();778 uint64_t Val = Dyn.getVal();
...@@ -767,11 +829,14 @@ SharedFile<ELFT>::parseVerdefs(const Elf_Versym *&Versym) {...@@ -767,11 +829,14 @@ SharedFile<ELFT>::parseVerdefs(const Elf_Versym *&Versym) {
767template <class ELFT> void SharedFile<ELFT>::parseRest() {829template <class ELFT> void SharedFile<ELFT>::parseRest() {
768 // Create mapping from version identifiers to Elf_Verdef entries.830 // Create mapping from version identifiers to Elf_Verdef entries.
769 const Elf_Versym *Versym = nullptr;831 const Elf_Versym *Versym = nullptr;
770 std::vector<const Elf_Verdef *> Verdefs = parseVerdefs(Versym);832 Verdefs = parseVerdefs(Versym);
833
834 ArrayRef<Elf_Shdr> Sections = CHECK(this->getObj().sections(), this);
771835
772 Elf_Sym_Range Syms = this->getGlobalSymbols();836 // Add symbols to the symbol table.
837 Elf_Sym_Range Syms = this->getGlobalELFSyms();
773 for (const Elf_Sym &Sym : Syms) {838 for (const Elf_Sym &Sym : Syms) {
774 unsigned VersymIndex = 0;839 unsigned VersymIndex = VER_NDX_GLOBAL;
775 if (Versym) {840 if (Versym) {
776 VersymIndex = Versym->vs_index;841 VersymIndex = Versym->vs_index;
777 ++Versym;842 ++Versym;
...@@ -779,28 +844,54 @@ template <class ELFT> void SharedFile<ELFT>::parseRest() {...@@ -779,28 +844,54 @@ template <class ELFT> void SharedFile<ELFT>::parseRest() {
779 bool Hidden = VersymIndex & VERSYM_HIDDEN;844 bool Hidden = VersymIndex & VERSYM_HIDDEN;
780 VersymIndex = VersymIndex & ~VERSYM_HIDDEN;845 VersymIndex = VersymIndex & ~VERSYM_HIDDEN;
781846
782 StringRef Name = check(Sym.getName(this->StringTable), toString(this));847 StringRef Name = CHECK(Sym.getName(this->StringTable), this);
783 if (Sym.isUndefined()) {848 if (Sym.isUndefined()) {
784 Undefs.push_back(Name);849 Undefs.push_back(Name);
785 continue;850 continue;
786 }851 }
787852
788 // Ignore local symbols.853 if (Sym.getBinding() == STB_LOCAL) {
789 if (Versym && VersymIndex == VER_NDX_LOCAL)854 warn("found local symbol '" + Name +
855 "' in global part of symbol table in file " + toString(this));
790 continue;856 continue;
857 }
858
859 const Elf_Verdef *Ver = nullptr;
860 if (VersymIndex != VER_NDX_GLOBAL) {
861 if (VersymIndex >= Verdefs.size() || VersymIndex == VER_NDX_LOCAL) {
862 error("corrupt input file: version definition index " +
863 Twine(VersymIndex) + " for symbol " + Name +
864 " is out of bounds\n>>> defined in " + toString(this));
865 continue;
866 }
867 Ver = Verdefs[VersymIndex];
868 } else {
869 VersymIndex = 0;
870 }
791871
792 const Elf_Verdef *V =872 // We do not usually care about alignments of data in shared object
793 VersymIndex == VER_NDX_GLOBAL ? nullptr : Verdefs[VersymIndex];873 // files because the loader takes care of it. However, if we promote a
874 // DSO symbol to point to .bss due to copy relocation, we need to keep
875 // the original alignment requirements. We infer it here.
876 uint64_t Alignment = 1;
877 if (Sym.st_value)
878 Alignment = 1ULL << countTrailingZeros((uint64_t)Sym.st_value);
879 if (0 < Sym.st_shndx && Sym.st_shndx < Sections.size()) {
880 uint64_t SecAlign = Sections[Sym.st_shndx].sh_addralign;
881 Alignment = std::min(Alignment, SecAlign);
882 }
883 if (Alignment > UINT32_MAX)
884 error(toString(this) + ": alignment too large: " + Name);
794885
795 if (!Hidden)886 if (!Hidden)
796 elf::Symtab<ELFT>::X->addShared(this, Name, Sym, V);887 Symtab->addShared(Name, *this, Sym, Alignment, VersymIndex);
797888
798 // Also add the symbol with the versioned name to handle undefined symbols889 // Also add the symbol with the versioned name to handle undefined symbols
799 // with explicit versions.890 // with explicit versions.
800 if (V) {891 if (Ver) {
801 StringRef VerName = this->StringTable.data() + V->getAux()->vda_name;892 StringRef VerName = this->StringTable.data() + Ver->getAux()->vda_name;
802 Name = Saver.save(Name + "@" + VerName);893 Name = Saver.save(Name + "@" + VerName);
803 elf::Symtab<ELFT>::X->addShared(this, Name, Sym, V);894 Symtab->addShared(Name, *this, Sym, Alignment, VersymIndex);
804 }895 }
805 }896 }
806}897}
...@@ -855,7 +946,7 @@ BitcodeFile::BitcodeFile(MemoryBufferRef MB, StringRef ArchiveName,...@@ -855,7 +946,7 @@ BitcodeFile::BitcodeFile(MemoryBufferRef MB, StringRef ArchiveName,
855 MemoryBufferRef MBRef(MB.getBuffer(),946 MemoryBufferRef MBRef(MB.getBuffer(),
856 Saver.save(ArchiveName + MB.getBufferIdentifier() +947 Saver.save(ArchiveName + MB.getBufferIdentifier() +
857 utostr(OffsetInArchive)));948 utostr(OffsetInArchive)));
858 Obj = check(lto::InputFile::create(MBRef), toString(this));949 Obj = CHECK(lto::InputFile::create(MBRef), this);
859950
860 Triple T(Obj->getTargetTriple());951 Triple T(Obj->getTargetTriple());
861 EKind = getBitcodeELFKind(T);952 EKind = getBitcodeELFKind(T);
...@@ -877,7 +968,7 @@ static uint8_t mapVisibility(GlobalValue::VisibilityTypes GvVisibility) {...@@ -877,7 +968,7 @@ static uint8_t mapVisibility(GlobalValue::VisibilityTypes GvVisibility) {
877template <class ELFT>968template <class ELFT>
878static Symbol *createBitcodeSymbol(const std::vector<bool> &KeptComdats,969static Symbol *createBitcodeSymbol(const std::vector<bool> &KeptComdats,
879 const lto::InputFile::Symbol &ObjSym,970 const lto::InputFile::Symbol &ObjSym,
880 BitcodeFile *F) {971 BitcodeFile &F) {
881 StringRef NameRef = Saver.save(ObjSym.getName());972 StringRef NameRef = Saver.save(ObjSym.getName());
882 uint32_t Binding = ObjSym.isWeak() ? STB_WEAK : STB_GLOBAL;973 uint32_t Binding = ObjSym.isWeak() ? STB_WEAK : STB_GLOBAL;
883974
...@@ -887,22 +978,20 @@ static Symbol *createBitcodeSymbol(const std::vector<bool> &KeptComdats,...@@ -887,22 +978,20 @@ static Symbol *createBitcodeSymbol(const std::vector<bool> &KeptComdats,
887978
888 int C = ObjSym.getComdatIndex();979 int C = ObjSym.getComdatIndex();
889 if (C != -1 && !KeptComdats[C])980 if (C != -1 && !KeptComdats[C])
890 return Symtab<ELFT>::X->addUndefined(NameRef, /*IsLocal=*/false, Binding,981 return Symtab->addUndefined<ELFT>(NameRef, Binding, Visibility, Type,
891 Visibility, Type, CanOmitFromDynSym,982 CanOmitFromDynSym, &F);
892 F);
893983
894 if (ObjSym.isUndefined())984 if (ObjSym.isUndefined())
895 return Symtab<ELFT>::X->addUndefined(NameRef, /*IsLocal=*/false, Binding,985 return Symtab->addUndefined<ELFT>(NameRef, Binding, Visibility, Type,
896 Visibility, Type, CanOmitFromDynSym,986 CanOmitFromDynSym, &F);
897 F);
898987
899 if (ObjSym.isCommon())988 if (ObjSym.isCommon())
900 return Symtab<ELFT>::X->addCommon(NameRef, ObjSym.getCommonSize(),989 return Symtab->addCommon(NameRef, ObjSym.getCommonSize(),
901 ObjSym.getCommonAlignment(), Binding,990 ObjSym.getCommonAlignment(), Binding, Visibility,
902 Visibility, STT_OBJECT, F);991 STT_OBJECT, F);
903992
904 return Symtab<ELFT>::X->addBitcode(NameRef, Binding, Visibility, Type,993 return Symtab->addBitcode(NameRef, Binding, Visibility, Type,
905 CanOmitFromDynSym, F);994 CanOmitFromDynSym, F);
906}995}
907996
908template <class ELFT>997template <class ELFT>
...@@ -912,7 +1001,7 @@ void BitcodeFile::parse(DenseSet<CachedHashStringRef> &ComdatGroups) {...@@ -912,7 +1001,7 @@ void BitcodeFile::parse(DenseSet<CachedHashStringRef> &ComdatGroups) {
912 KeptComdats.push_back(ComdatGroups.insert(CachedHashStringRef(S)).second);1001 KeptComdats.push_back(ComdatGroups.insert(CachedHashStringRef(S)).second);
9131002
914 for (const lto::InputFile::Symbol &ObjSym : Obj->symbols())1003 for (const lto::InputFile::Symbol &ObjSym : Obj->symbols())
915 Symbols.push_back(createBitcodeSymbol<ELFT>(KeptComdats, ObjSym, this));1004 Symbols.push_back(createBitcodeSymbol<ELFT>(KeptComdats, ObjSym, *this));
916}1005}
9171006
918static ELFKind getELFKind(MemoryBufferRef MB) {1007static ELFKind getELFKind(MemoryBufferRef MB) {
...@@ -935,10 +1024,10 @@ static ELFKind getELFKind(MemoryBufferRef MB) {...@@ -935,10 +1024,10 @@ static ELFKind getELFKind(MemoryBufferRef MB) {
935 return (Endian == ELFDATA2LSB) ? ELF64LEKind : ELF64BEKind;1024 return (Endian == ELFDATA2LSB) ? ELF64LEKind : ELF64BEKind;
936}1025}
9371026
938template <class ELFT> void BinaryFile::parse() {1027void BinaryFile::parse() {
939 ArrayRef<uint8_t> Data = toArrayRef(MB.getBuffer());1028 ArrayRef<uint8_t> Data = toArrayRef(MB.getBuffer());
940 auto *Section =1029 auto *Section = make<InputSection>(nullptr, SHF_ALLOC | SHF_WRITE,
941 make<InputSection>(SHF_ALLOC | SHF_WRITE, SHT_PROGBITS, 8, Data, ".data");1030 SHT_PROGBITS, 8, Data, ".data");
942 Sections.push_back(Section);1031 Sections.push_back(Section);
9431032
944 // For each input file foo that is embedded to a result as a binary1033 // For each input file foo that is embedded to a result as a binary
...@@ -947,18 +1036,15 @@ template <class ELFT> void BinaryFile::parse() {...@@ -947,18 +1036,15 @@ template <class ELFT> void BinaryFile::parse() {
947 // characters in a filename are replaced with underscore.1036 // characters in a filename are replaced with underscore.
948 std::string S = "_binary_" + MB.getBufferIdentifier().str();1037 std::string S = "_binary_" + MB.getBufferIdentifier().str();
949 for (size_t I = 0; I < S.size(); ++I)1038 for (size_t I = 0; I < S.size(); ++I)
950 if (!isalnum(S[I]))1039 if (!isAlnum(S[I]))
951 S[I] = '_';1040 S[I] = '_';
9521041
953 elf::Symtab<ELFT>::X->addRegular(Saver.save(S + "_start"), STV_DEFAULT,1042 Symtab->addRegular(Saver.save(S + "_start"), STV_DEFAULT, STT_OBJECT, 0, 0,
954 STT_OBJECT, 0, 0, STB_GLOBAL, Section,1043 STB_GLOBAL, Section, nullptr);
955 nullptr);1044 Symtab->addRegular(Saver.save(S + "_end"), STV_DEFAULT, STT_OBJECT,
956 elf::Symtab<ELFT>::X->addRegular(Saver.save(S + "_end"), STV_DEFAULT,1045 Data.size(), 0, STB_GLOBAL, Section, nullptr);
957 STT_OBJECT, Data.size(), 0, STB_GLOBAL,1046 Symtab->addRegular(Saver.save(S + "_size"), STV_DEFAULT, STT_OBJECT,
958 Section, nullptr);1047 Data.size(), 0, STB_GLOBAL, nullptr, nullptr);
959 elf::Symtab<ELFT>::X->addRegular(Saver.save(S + "_size"), STV_DEFAULT,
960 STT_OBJECT, Data.size(), 0, STB_GLOBAL,
961 nullptr, nullptr);
962}1048}
9631049
964static bool isBitcode(MemoryBufferRef MB) {1050static bool isBitcode(MemoryBufferRef MB) {
...@@ -973,13 +1059,13 @@ InputFile *elf::createObjectFile(MemoryBufferRef MB, StringRef ArchiveName,...@@ -973,13 +1059,13 @@ InputFile *elf::createObjectFile(MemoryBufferRef MB, StringRef ArchiveName,
9731059
974 switch (getELFKind(MB)) {1060 switch (getELFKind(MB)) {
975 case ELF32LEKind:1061 case ELF32LEKind:
976 return make<ObjectFile<ELF32LE>>(MB, ArchiveName);1062 return make<ObjFile<ELF32LE>>(MB, ArchiveName);
977 case ELF32BEKind:1063 case ELF32BEKind:
978 return make<ObjectFile<ELF32BE>>(MB, ArchiveName);1064 return make<ObjFile<ELF32BE>>(MB, ArchiveName);
979 case ELF64LEKind:1065 case ELF64LEKind:
980 return make<ObjectFile<ELF64LE>>(MB, ArchiveName);1066 return make<ObjFile<ELF64LE>>(MB, ArchiveName);
981 case ELF64BEKind:1067 case ELF64BEKind:
982 return make<ObjectFile<ELF64BE>>(MB, ArchiveName);1068 return make<ObjFile<ELF64BE>>(MB, ArchiveName);
983 default:1069 default:
984 llvm_unreachable("getELFKind");1070 llvm_unreachable("getELFKind");
985 }1071 }
...@@ -1000,53 +1086,53 @@ InputFile *elf::createSharedFile(MemoryBufferRef MB, StringRef DefaultSoName) {...@@ -1000,53 +1086,53 @@ InputFile *elf::createSharedFile(MemoryBufferRef MB, StringRef DefaultSoName) {
1000 }1086 }
1001}1087}
10021088
1003MemoryBufferRef LazyObjectFile::getBuffer() {1089MemoryBufferRef LazyObjFile::getBuffer() {
1004 if (Seen)1090 if (Seen)
1005 return MemoryBufferRef();1091 return MemoryBufferRef();
1006 Seen = true;1092 Seen = true;
1007 return MB;1093 return MB;
1008}1094}
10091095
1010InputFile *LazyObjectFile::fetch() {1096InputFile *LazyObjFile::fetch() {
1011 MemoryBufferRef MBRef = getBuffer();1097 MemoryBufferRef MBRef = getBuffer();
1012 if (MBRef.getBuffer().empty())1098 if (MBRef.getBuffer().empty())
1013 return nullptr;1099 return nullptr;
1014 return createObjectFile(MBRef, ArchiveName, OffsetInArchive);1100 return createObjectFile(MBRef, ArchiveName, OffsetInArchive);
1015}1101}
10161102
1017template <class ELFT> void LazyObjectFile::parse() {1103template <class ELFT> void LazyObjFile::parse() {
1018 for (StringRef Sym : getSymbols())1104 for (StringRef Sym : getSymbolNames())
1019 Symtab<ELFT>::X->addLazyObject(Sym, *this);1105 Symtab->addLazyObject<ELFT>(Sym, *this);
1020}1106}
10211107
1022template <class ELFT> std::vector<StringRef> LazyObjectFile::getElfSymbols() {1108template <class ELFT> std::vector<StringRef> LazyObjFile::getElfSymbols() {
1023 typedef typename ELFT::Shdr Elf_Shdr;1109 typedef typename ELFT::Shdr Elf_Shdr;
1024 typedef typename ELFT::Sym Elf_Sym;1110 typedef typename ELFT::Sym Elf_Sym;
1025 typedef typename ELFT::SymRange Elf_Sym_Range;1111 typedef typename ELFT::SymRange Elf_Sym_Range;
10261112
1027 const ELFFile<ELFT> Obj(this->MB.getBuffer());1113 ELFFile<ELFT> Obj = check(ELFFile<ELFT>::create(this->MB.getBuffer()));
1028 ArrayRef<Elf_Shdr> Sections = check(Obj.sections(), toString(this));1114 ArrayRef<Elf_Shdr> Sections = CHECK(Obj.sections(), this);
1029 for (const Elf_Shdr &Sec : Sections) {1115 for (const Elf_Shdr &Sec : Sections) {
1030 if (Sec.sh_type != SHT_SYMTAB)1116 if (Sec.sh_type != SHT_SYMTAB)
1031 continue;1117 continue;
10321118
1033 Elf_Sym_Range Syms = check(Obj.symbols(&Sec), toString(this));1119 Elf_Sym_Range Syms = CHECK(Obj.symbols(&Sec), this);
1034 uint32_t FirstNonLocal = Sec.sh_info;1120 uint32_t FirstNonLocal = Sec.sh_info;
1035 StringRef StringTable =1121 StringRef StringTable =
1036 check(Obj.getStringTableForSymtab(Sec, Sections), toString(this));1122 CHECK(Obj.getStringTableForSymtab(Sec, Sections), this);
1037 std::vector<StringRef> V;1123 std::vector<StringRef> V;
10381124
1039 for (const Elf_Sym &Sym : Syms.slice(FirstNonLocal))1125 for (const Elf_Sym &Sym : Syms.slice(FirstNonLocal))
1040 if (Sym.st_shndx != SHN_UNDEF)1126 if (Sym.st_shndx != SHN_UNDEF)
1041 V.push_back(check(Sym.getName(StringTable), toString(this)));1127 V.push_back(CHECK(Sym.getName(StringTable), this));
1042 return V;1128 return V;
1043 }1129 }
1044 return {};1130 return {};
1045}1131}
10461132
1047std::vector<StringRef> LazyObjectFile::getBitcodeSymbols() {1133std::vector<StringRef> LazyObjFile::getBitcodeSymbols() {
1048 std::unique_ptr<lto::InputFile> Obj =1134 std::unique_ptr<lto::InputFile> Obj =
1049 check(lto::InputFile::create(this->MB), toString(this));1135 CHECK(lto::InputFile::create(this->MB), this);
1050 std::vector<StringRef> V;1136 std::vector<StringRef> V;
1051 for (const lto::InputFile::Symbol &Sym : Obj->symbols())1137 for (const lto::InputFile::Symbol &Sym : Obj->symbols())
1052 if (!Sym.isUndefined())1138 if (!Sym.isUndefined())
...@@ -1055,7 +1141,7 @@ std::vector<StringRef> LazyObjectFile::getBitcodeSymbols() {...@@ -1055,7 +1141,7 @@ std::vector<StringRef> LazyObjectFile::getBitcodeSymbols() {
1055}1141}
10561142
1057// Returns a vector of globally-visible defined symbol names.1143// Returns a vector of globally-visible defined symbol names.
1058std::vector<StringRef> LazyObjectFile::getSymbols() {1144std::vector<StringRef> LazyObjFile::getSymbolNames() {
1059 if (isBitcode(this->MB))1145 if (isBitcode(this->MB))
1060 return getBitcodeSymbols();1146 return getBitcodeSymbols();
10611147
...@@ -1083,27 +1169,22 @@ template void BitcodeFile::parse<ELF32BE>(DenseSet<CachedHashStringRef> &);...@@ -1083,27 +1169,22 @@ template void BitcodeFile::parse<ELF32BE>(DenseSet<CachedHashStringRef> &);
1083template void BitcodeFile::parse<ELF64LE>(DenseSet<CachedHashStringRef> &);1169template void BitcodeFile::parse<ELF64LE>(DenseSet<CachedHashStringRef> &);
1084template void BitcodeFile::parse<ELF64BE>(DenseSet<CachedHashStringRef> &);1170template void BitcodeFile::parse<ELF64BE>(DenseSet<CachedHashStringRef> &);
10851171
1086template void LazyObjectFile::parse<ELF32LE>();1172template void LazyObjFile::parse<ELF32LE>();
1087template void LazyObjectFile::parse<ELF32BE>();1173template void LazyObjFile::parse<ELF32BE>();
1088template void LazyObjectFile::parse<ELF64LE>();1174template void LazyObjFile::parse<ELF64LE>();
1089template void LazyObjectFile::parse<ELF64BE>();1175template void LazyObjFile::parse<ELF64BE>();
10901176
1091template class elf::ELFFileBase<ELF32LE>;1177template class elf::ELFFileBase<ELF32LE>;
1092template class elf::ELFFileBase<ELF32BE>;1178template class elf::ELFFileBase<ELF32BE>;
1093template class elf::ELFFileBase<ELF64LE>;1179template class elf::ELFFileBase<ELF64LE>;
1094template class elf::ELFFileBase<ELF64BE>;1180template class elf::ELFFileBase<ELF64BE>;
10951181
1096template class elf::ObjectFile<ELF32LE>;1182template class elf::ObjFile<ELF32LE>;
1097template class elf::ObjectFile<ELF32BE>;1183template class elf::ObjFile<ELF32BE>;
1098template class elf::ObjectFile<ELF64LE>;1184template class elf::ObjFile<ELF64LE>;
1099template class elf::ObjectFile<ELF64BE>;1185template class elf::ObjFile<ELF64BE>;
11001186
1101template class elf::SharedFile<ELF32LE>;1187template class elf::SharedFile<ELF32LE>;
1102template class elf::SharedFile<ELF32BE>;1188template class elf::SharedFile<ELF32BE>;
1103template class elf::SharedFile<ELF64LE>;1189template class elf::SharedFile<ELF64LE>;
1104template class elf::SharedFile<ELF64BE>;1190template class elf::SharedFile<ELF64BE>;
1105
1106template void BinaryFile::parse<ELF32LE>();
1107template void BinaryFile::parse<ELF32BE>();
1108template void BinaryFile::parse<ELF64LE>();
1109template void BinaryFile::parse<ELF64BE>();
deps/lld/ELF/InputFiles.h+60-58
...@@ -11,12 +11,10 @@...@@ -11,12 +11,10 @@
11#define LLD_ELF_INPUT_FILES_H11#define LLD_ELF_INPUT_FILES_H
1212
13#include "Config.h"13#include "Config.h"
14#include "Error.h"14#include "lld/Common/ErrorHandler.h"
15#include "InputSection.h"
16#include "Symbols.h"
1715
18#include "lld/Core/LLVM.h"16#include "lld/Common/LLVM.h"
19#include "lld/Core/Reproduce.h"17#include "lld/Common/Reproduce.h"
20#include "llvm/ADT/CachedHashString.h"18#include "llvm/ADT/CachedHashString.h"
21#include "llvm/ADT/DenseSet.h"19#include "llvm/ADT/DenseSet.h"
22#include "llvm/ADT/STLExtras.h"20#include "llvm/ADT/STLExtras.h"
...@@ -40,9 +38,10 @@ class InputFile;...@@ -40,9 +38,10 @@ class InputFile;
40namespace lld {38namespace lld {
41namespace elf {39namespace elf {
42class InputFile;40class InputFile;
41class InputSectionBase;
43}42}
4443
45// Returns "(internal)", "foo.a(bar.o)" or "baz.o".44// Returns "<internal>", "foo.a(bar.o)" or "baz.o".
46std::string toString(const elf::InputFile *F);45std::string toString(const elf::InputFile *F);
4746
48namespace elf {47namespace elf {
...@@ -50,7 +49,7 @@ namespace elf {...@@ -50,7 +49,7 @@ namespace elf {
50using llvm::object::Archive;49using llvm::object::Archive;
5150
52class Lazy;51class Lazy;
53class SymbolBody;52class Symbol;
5453
55// If -reproduce option is given, all input files are written54// If -reproduce option is given, all input files are written
56// to this tar archive.55// to this tar archive.
...@@ -63,9 +62,9 @@ llvm::Optional<MemoryBufferRef> readFile(StringRef Path);...@@ -63,9 +62,9 @@ llvm::Optional<MemoryBufferRef> readFile(StringRef Path);
63class InputFile {62class InputFile {
64public:63public:
65 enum Kind {64 enum Kind {
66 ObjectKind,65 ObjKind,
67 SharedKind,66 SharedKind,
68 LazyObjectKind,67 LazyObjKind,
69 ArchiveKind,68 ArchiveKind,
70 BitcodeKind,69 BitcodeKind,
71 BinaryKind,70 BinaryKind,
...@@ -73,16 +72,29 @@ public:...@@ -73,16 +72,29 @@ public:
7372
74 Kind kind() const { return FileKind; }73 Kind kind() const { return FileKind; }
7574
75 bool isElf() const {
76 Kind K = kind();
77 return K == ObjKind || K == SharedKind;
78 }
79
76 StringRef getName() const { return MB.getBufferIdentifier(); }80 StringRef getName() const { return MB.getBufferIdentifier(); }
77 MemoryBufferRef MB;81 MemoryBufferRef MB;
7882
79 // Returns sections. It is a runtime error to call this function83 // Returns sections. It is a runtime error to call this function
80 // on files that don't have the notion of sections.84 // on files that don't have the notion of sections.
81 ArrayRef<InputSectionBase *> getSections() const {85 ArrayRef<InputSectionBase *> getSections() const {
82 assert(FileKind == ObjectKind || FileKind == BinaryKind);86 assert(FileKind == ObjKind || FileKind == BinaryKind);
83 return Sections;87 return Sections;
84 }88 }
8589
90 // Returns object file symbols. It is a runtime error to call this
91 // function on files of other types.
92 ArrayRef<Symbol *> getSymbols() {
93 assert(FileKind == ObjKind || FileKind == BitcodeKind ||
94 FileKind == ArchiveKind);
95 return Symbols;
96 }
97
86 // Filename of .a which contained this file. If this file was98 // Filename of .a which contained this file. If this file was
87 // not in an archive file, it is the empty string. We use this99 // not in an archive file, it is the empty string. We use this
88 // string for creating error messages.100 // string for creating error messages.
...@@ -97,9 +109,13 @@ public:...@@ -97,9 +109,13 @@ public:
97 // Cache for toString(). Only toString() should use this member.109 // Cache for toString(). Only toString() should use this member.
98 mutable std::string ToStringCache;110 mutable std::string ToStringCache;
99111
112 std::string getSrcMsg(const Symbol &Sym, InputSectionBase &Sec,
113 uint64_t Offset);
114
100protected:115protected:
101 InputFile(Kind K, MemoryBufferRef M);116 InputFile(Kind K, MemoryBufferRef M);
102 std::vector<InputSectionBase *> Sections;117 std::vector<InputSectionBase *> Sections;
118 std::vector<Symbol *> Symbols;
103119
104private:120private:
105 const Kind FileKind;121 const Kind FileKind;
...@@ -113,23 +129,21 @@ public:...@@ -113,23 +129,21 @@ public:
113 typedef typename ELFT::SymRange Elf_Sym_Range;129 typedef typename ELFT::SymRange Elf_Sym_Range;
114130
115 ELFFileBase(Kind K, MemoryBufferRef M);131 ELFFileBase(Kind K, MemoryBufferRef M);
116 static bool classof(const InputFile *F) {132 static bool classof(const InputFile *F) { return F->isElf(); }
117 Kind K = F->kind();
118 return K == ObjectKind || K == SharedKind;
119 }
120133
121 llvm::object::ELFFile<ELFT> getObj() const {134 llvm::object::ELFFile<ELFT> getObj() const {
122 return llvm::object::ELFFile<ELFT>(MB.getBuffer());135 return check(llvm::object::ELFFile<ELFT>::create(MB.getBuffer()));
123 }136 }
124137
125 StringRef getStringTable() const { return StringTable; }138 StringRef getStringTable() const { return StringTable; }
126139
127 uint32_t getSectionIndex(const Elf_Sym &Sym) const;140 uint32_t getSectionIndex(const Elf_Sym &Sym) const;
128141
129 Elf_Sym_Range getGlobalSymbols();142 Elf_Sym_Range getGlobalELFSyms();
143 Elf_Sym_Range getELFSyms() const { return ELFSyms; }
130144
131protected:145protected:
132 ArrayRef<Elf_Sym> Symbols;146 ArrayRef<Elf_Sym> ELFSyms;
133 uint32_t FirstNonLocal = 0;147 uint32_t FirstNonLocal = 0;
134 ArrayRef<Elf_Word> SymtabSHNDX;148 ArrayRef<Elf_Word> SymtabSHNDX;
135 StringRef StringTable;149 StringRef StringTable;
...@@ -137,7 +151,7 @@ protected:...@@ -137,7 +151,7 @@ protected:
137};151};
138152
139// .o file.153// .o file.
140template <class ELFT> class ObjectFile : public ELFFileBase<ELFT> {154template <class ELFT> class ObjFile : public ELFFileBase<ELFT> {
141 typedef ELFFileBase<ELFT> Base;155 typedef ELFFileBase<ELFT> Base;
142 typedef typename ELFT::Rel Elf_Rel;156 typedef typename ELFT::Rel Elf_Rel;
143 typedef typename ELFT::Rela Elf_Rela;157 typedef typename ELFT::Rela Elf_Rela;
...@@ -150,34 +164,29 @@ template <class ELFT> class ObjectFile : public ELFFileBase<ELFT> {...@@ -150,34 +164,29 @@ template <class ELFT> class ObjectFile : public ELFFileBase<ELFT> {
150 ArrayRef<Elf_Word> getShtGroupEntries(const Elf_Shdr &Sec);164 ArrayRef<Elf_Word> getShtGroupEntries(const Elf_Shdr &Sec);
151165
152public:166public:
153 static bool classof(const InputFile *F) {167 static bool classof(const InputFile *F) { return F->kind() == Base::ObjKind; }
154 return F->kind() == Base::ObjectKind;
155 }
156168
157 ArrayRef<SymbolBody *> getSymbols();169 ArrayRef<Symbol *> getLocalSymbols();
158 ArrayRef<SymbolBody *> getLocalSymbols();
159170
160 ObjectFile(MemoryBufferRef M, StringRef ArchiveName);171 ObjFile(MemoryBufferRef M, StringRef ArchiveName);
161 void parse(llvm::DenseSet<llvm::CachedHashStringRef> &ComdatGroups);172 void parse(llvm::DenseSet<llvm::CachedHashStringRef> &ComdatGroups);
162173
163 InputSectionBase *getSection(const Elf_Sym &Sym) const;174 Symbol &getSymbol(uint32_t SymbolIndex) const {
164175 if (SymbolIndex >= this->Symbols.size())
165 SymbolBody &getSymbolBody(uint32_t SymbolIndex) const {
166 if (SymbolIndex >= SymbolBodies.size())
167 fatal(toString(this) + ": invalid symbol index");176 fatal(toString(this) + ": invalid symbol index");
168 return *SymbolBodies[SymbolIndex];177 return *this->Symbols[SymbolIndex];
169 }178 }
170179
171 template <typename RelT>180 template <typename RelT> Symbol &getRelocTargetSym(const RelT &Rel) const {
172 SymbolBody &getRelocTargetSym(const RelT &Rel) const {
173 uint32_t SymIndex = Rel.getSymbol(Config->IsMips64EL);181 uint32_t SymIndex = Rel.getSymbol(Config->IsMips64EL);
174 return getSymbolBody(SymIndex);182 return getSymbol(SymIndex);
175 }183 }
176184
177 // Returns source line information for a given offset.185 // Returns source line information for a given offset.
178 // If no information is available, returns "".186 // If no information is available, returns "".
179 std::string getLineInfo(InputSectionBase *S, uint64_t Offset);187 std::string getLineInfo(InputSectionBase *S, uint64_t Offset);
180 llvm::Optional<llvm::DILineInfo> getDILineInfo(InputSectionBase *, uint64_t);188 llvm::Optional<llvm::DILineInfo> getDILineInfo(InputSectionBase *, uint64_t);
189 llvm::Optional<std::pair<std::string, unsigned>> getVariableLoc(StringRef Name);
181190
182 // MIPS GP0 value defined by this file. This value represents the gp value191 // MIPS GP0 value defined by this file. This value represents the gp value
183 // used to create the relocatable object and required to support192 // used to create the relocatable object and required to support
...@@ -193,16 +202,13 @@ private:...@@ -193,16 +202,13 @@ private:
193 void202 void
194 initializeSections(llvm::DenseSet<llvm::CachedHashStringRef> &ComdatGroups);203 initializeSections(llvm::DenseSet<llvm::CachedHashStringRef> &ComdatGroups);
195 void initializeSymbols();204 void initializeSymbols();
196 void initializeDwarfLine();205 void initializeDwarf();
197 InputSectionBase *getRelocTarget(const Elf_Shdr &Sec);206 InputSectionBase *getRelocTarget(const Elf_Shdr &Sec);
198 InputSectionBase *createInputSection(const Elf_Shdr &Sec);207 InputSectionBase *createInputSection(const Elf_Shdr &Sec);
199 StringRef getSectionName(const Elf_Shdr &Sec);208 StringRef getSectionName(const Elf_Shdr &Sec);
200209
201 bool shouldMerge(const Elf_Shdr &Sec);210 bool shouldMerge(const Elf_Shdr &Sec);
202 SymbolBody *createSymbolBody(const Elf_Sym *Sym);211 Symbol *createSymbol(const Elf_Sym *Sym);
203
204 // List of all symbols referenced or defined by this file.
205 std::vector<SymbolBody *> SymbolBodies;
206212
207 // .shstrtab contents.213 // .shstrtab contents.
208 StringRef SectionStringTable;214 StringRef SectionStringTable;
...@@ -212,34 +218,33 @@ private:...@@ -212,34 +218,33 @@ private:
212 // single object file, so we cache debugging information in order to218 // single object file, so we cache debugging information in order to
213 // parse it only once for each object file we link.219 // parse it only once for each object file we link.
214 std::unique_ptr<llvm::DWARFDebugLine> DwarfLine;220 std::unique_ptr<llvm::DWARFDebugLine> DwarfLine;
221 llvm::DenseMap<StringRef, std::pair<unsigned, unsigned>> VariableLoc;
215 llvm::once_flag InitDwarfLine;222 llvm::once_flag InitDwarfLine;
216};223};
217224
218// LazyObjectFile is analogous to ArchiveFile in the sense that225// LazyObjFile is analogous to ArchiveFile in the sense that
219// the file contains lazy symbols. The difference is that226// the file contains lazy symbols. The difference is that
220// LazyObjectFile wraps a single file instead of multiple files.227// LazyObjFile wraps a single file instead of multiple files.
221//228//
222// This class is used for --start-lib and --end-lib options which229// This class is used for --start-lib and --end-lib options which
223// instruct the linker to link object files between them with the230// instruct the linker to link object files between them with the
224// archive file semantics.231// archive file semantics.
225class LazyObjectFile : public InputFile {232class LazyObjFile : public InputFile {
226public:233public:
227 LazyObjectFile(MemoryBufferRef M, StringRef ArchiveName,234 LazyObjFile(MemoryBufferRef M, StringRef ArchiveName,
228 uint64_t OffsetInArchive)235 uint64_t OffsetInArchive)
229 : InputFile(LazyObjectKind, M), OffsetInArchive(OffsetInArchive) {236 : InputFile(LazyObjKind, M), OffsetInArchive(OffsetInArchive) {
230 this->ArchiveName = ArchiveName;237 this->ArchiveName = ArchiveName;
231 }238 }
232239
233 static bool classof(const InputFile *F) {240 static bool classof(const InputFile *F) { return F->kind() == LazyObjKind; }
234 return F->kind() == LazyObjectKind;
235 }
236241
237 template <class ELFT> void parse();242 template <class ELFT> void parse();
238 MemoryBufferRef getBuffer();243 MemoryBufferRef getBuffer();
239 InputFile *fetch();244 InputFile *fetch();
240245
241private:246private:
242 std::vector<StringRef> getSymbols();247 std::vector<StringRef> getSymbolNames();
243 template <class ELFT> std::vector<StringRef> getElfSymbols();248 template <class ELFT> std::vector<StringRef> getElfSymbols();
244 std::vector<StringRef> getBitcodeSymbols();249 std::vector<StringRef> getBitcodeSymbols();
245250
...@@ -253,7 +258,6 @@ public:...@@ -253,7 +258,6 @@ public:
253 explicit ArchiveFile(std::unique_ptr<Archive> &&File);258 explicit ArchiveFile(std::unique_ptr<Archive> &&File);
254 static bool classof(const InputFile *F) { return F->kind() == ArchiveKind; }259 static bool classof(const InputFile *F) { return F->kind() == ArchiveKind; }
255 template <class ELFT> void parse();260 template <class ELFT> void parse();
256 ArrayRef<Symbol *> getSymbols() { return Symbols; }
257261
258 // Returns a memory buffer for a given symbol and the offset in the archive262 // Returns a memory buffer for a given symbol and the offset in the archive
259 // for the member. An empty memory buffer and an offset of zero263 // for the member. An empty memory buffer and an offset of zero
...@@ -264,7 +268,6 @@ public:...@@ -264,7 +268,6 @@ public:
264private:268private:
265 std::unique_ptr<Archive> File;269 std::unique_ptr<Archive> File;
266 llvm::DenseSet<uint64_t> Seen;270 llvm::DenseSet<uint64_t> Seen;
267 std::vector<Symbol *> Symbols;
268};271};
269272
270class BitcodeFile : public InputFile {273class BitcodeFile : public InputFile {
...@@ -274,11 +277,7 @@ public:...@@ -274,11 +277,7 @@ public:
274 static bool classof(const InputFile *F) { return F->kind() == BitcodeKind; }277 static bool classof(const InputFile *F) { return F->kind() == BitcodeKind; }
275 template <class ELFT>278 template <class ELFT>
276 void parse(llvm::DenseSet<llvm::CachedHashStringRef> &ComdatGroups);279 void parse(llvm::DenseSet<llvm::CachedHashStringRef> &ComdatGroups);
277 ArrayRef<Symbol *> getSymbols() { return Symbols; }
278 std::unique_ptr<llvm::lto::InputFile> Obj;280 std::unique_ptr<llvm::lto::InputFile> Obj;
279
280private:
281 std::vector<Symbol *> Symbols;
282};281};
283282
284// .so file.283// .so file.
...@@ -296,9 +295,9 @@ template <class ELFT> class SharedFile : public ELFFileBase<ELFT> {...@@ -296,9 +295,9 @@ template <class ELFT> class SharedFile : public ELFFileBase<ELFT> {
296 const Elf_Shdr *VerdefSec = nullptr;295 const Elf_Shdr *VerdefSec = nullptr;
297296
298public:297public:
298 std::vector<const Elf_Verdef *> Verdefs;
299 std::string SoName;299 std::string SoName;
300300
301 const Elf_Shdr *getSection(const Elf_Sym &Sym) const;
302 llvm::ArrayRef<StringRef> getUndefinedSymbols() { return Undefs; }301 llvm::ArrayRef<StringRef> getUndefinedSymbols() { return Undefs; }
303302
304 static bool classof(const InputFile *F) {303 static bool classof(const InputFile *F) {
...@@ -324,22 +323,25 @@ public:...@@ -324,22 +323,25 @@ public:
324 std::map<const Elf_Verdef *, NeededVer> VerdefMap;323 std::map<const Elf_Verdef *, NeededVer> VerdefMap;
325324
326 // Used for --as-needed325 // Used for --as-needed
327 bool AsNeeded = false;326 bool IsNeeded;
328 bool IsUsed = false;
329 bool isNeeded() const { return !AsNeeded || IsUsed; }
330};327};
331328
332class BinaryFile : public InputFile {329class BinaryFile : public InputFile {
333public:330public:
334 explicit BinaryFile(MemoryBufferRef M) : InputFile(BinaryKind, M) {}331 explicit BinaryFile(MemoryBufferRef M) : InputFile(BinaryKind, M) {}
335 static bool classof(const InputFile *F) { return F->kind() == BinaryKind; }332 static bool classof(const InputFile *F) { return F->kind() == BinaryKind; }
336 template <class ELFT> void parse();333 void parse();
337};334};
338335
339InputFile *createObjectFile(MemoryBufferRef MB, StringRef ArchiveName = "",336InputFile *createObjectFile(MemoryBufferRef MB, StringRef ArchiveName = "",
340 uint64_t OffsetInArchive = 0);337 uint64_t OffsetInArchive = 0);
341InputFile *createSharedFile(MemoryBufferRef MB, StringRef DefaultSoName);338InputFile *createSharedFile(MemoryBufferRef MB, StringRef DefaultSoName);
342339
340extern std::vector<BinaryFile *> BinaryFiles;
341extern std::vector<BitcodeFile *> BitcodeFiles;
342extern std::vector<InputFile *> ObjectFiles;
343extern std::vector<InputFile *> SharedFiles;
344
343} // namespace elf345} // namespace elf
344} // namespace lld346} // namespace lld
345347
deps/lld/ELF/InputSection.cpp+260-276
...@@ -10,21 +10,22 @@...@@ -10,21 +10,22 @@
10#include "InputSection.h"10#include "InputSection.h"
11#include "Config.h"11#include "Config.h"
12#include "EhFrame.h"12#include "EhFrame.h"
13#include "Error.h"
14#include "InputFiles.h"13#include "InputFiles.h"
15#include "LinkerScript.h"14#include "LinkerScript.h"
16#include "Memory.h"
17#include "OutputSections.h"15#include "OutputSections.h"
18#include "Relocations.h"16#include "Relocations.h"
17#include "Symbols.h"
19#include "SyntheticSections.h"18#include "SyntheticSections.h"
20#include "Target.h"19#include "Target.h"
21#include "Thunks.h"20#include "Thunks.h"
21#include "lld/Common/ErrorHandler.h"
22#include "lld/Common/Memory.h"
22#include "llvm/Object/Decompressor.h"23#include "llvm/Object/Decompressor.h"
23#include "llvm/Support/Compiler.h"24#include "llvm/Support/Compiler.h"
24#include "llvm/Support/Compression.h"25#include "llvm/Support/Compression.h"
25#include "llvm/Support/Endian.h"26#include "llvm/Support/Endian.h"
26#include "llvm/Support/Path.h"
27#include "llvm/Support/Threading.h"27#include "llvm/Support/Threading.h"
28#include "llvm/Support/xxhash.h"
28#include <mutex>29#include <mutex>
2930
30using namespace llvm;31using namespace llvm;
...@@ -44,12 +45,38 @@ std::string lld::toString(const InputSectionBase *Sec) {...@@ -44,12 +45,38 @@ std::string lld::toString(const InputSectionBase *Sec) {
44 return (toString(Sec->File) + ":(" + Sec->Name + ")").str();45 return (toString(Sec->File) + ":(" + Sec->Name + ")").str();
45}46}
4647
48DenseMap<SectionBase *, int> elf::buildSectionOrder() {
49 DenseMap<SectionBase *, int> SectionOrder;
50 if (Config->SymbolOrderingFile.empty())
51 return SectionOrder;
52
53 // Build a map from symbols to their priorities. Symbols that didn't
54 // appear in the symbol ordering file have the lowest priority 0.
55 // All explicitly mentioned symbols have negative (higher) priorities.
56 DenseMap<StringRef, int> SymbolOrder;
57 int Priority = -Config->SymbolOrderingFile.size();
58 for (StringRef S : Config->SymbolOrderingFile)
59 SymbolOrder.insert({S, Priority++});
60
61 // Build a map from sections to their priorities.
62 for (InputFile *File : ObjectFiles) {
63 for (Symbol *Sym : File->getSymbols()) {
64 auto *D = dyn_cast<Defined>(Sym);
65 if (!D || !D->Section)
66 continue;
67 int &Priority = SectionOrder[D->Section];
68 Priority = std::min(Priority, SymbolOrder.lookup(D->getName()));
69 }
70 }
71 return SectionOrder;
72}
73
47template <class ELFT>74template <class ELFT>
48static ArrayRef<uint8_t> getSectionContents(elf::ObjectFile<ELFT> *File,75static ArrayRef<uint8_t> getSectionContents(ObjFile<ELFT> &File,
49 const typename ELFT::Shdr *Hdr) {76 const typename ELFT::Shdr &Hdr) {
50 if (!File || Hdr->sh_type == SHT_NOBITS)77 if (Hdr.sh_type == SHT_NOBITS)
51 return makeArrayRef<uint8_t>(nullptr, Hdr->sh_size);78 return makeArrayRef<uint8_t>(nullptr, Hdr.sh_size);
52 return check(File->getObj().getSectionContents(Hdr));79 return check(File.getObj().getSectionContents(&Hdr));
53}80}
5481
55InputSectionBase::InputSectionBase(InputFile *File, uint64_t Flags,82InputSectionBase::InputSectionBase(InputFile *File, uint64_t Flags,
...@@ -59,9 +86,13 @@ InputSectionBase::InputSectionBase(InputFile *File, uint64_t Flags,...@@ -59,9 +86,13 @@ InputSectionBase::InputSectionBase(InputFile *File, uint64_t Flags,
59 StringRef Name, Kind SectionKind)86 StringRef Name, Kind SectionKind)
60 : SectionBase(SectionKind, Name, Flags, Entsize, Alignment, Type, Info,87 : SectionBase(SectionKind, Name, Flags, Entsize, Alignment, Type, Info,
61 Link),88 Link),
62 File(File), Data(Data), Repl(this) {89 File(File), Data(Data) {
63 Live = !Config->GcSections || !(Flags & SHF_ALLOC);90 // In order to reduce memory allocation, we assume that mergeable
64 Assigned = false;91 // sections are smaller than 4 GiB, which is not an unreasonable
92 // assumption as of 2017.
93 if (SectionKind == SectionBase::Merge && Data.size() > UINT32_MAX)
94 error(toString(this) + ": section too large");
95
65 NumRelocations = 0;96 NumRelocations = 0;
66 AreRelocsRela = false;97 AreRelocsRela = false;
6798
...@@ -102,18 +133,18 @@ static uint64_t getType(uint64_t Type, StringRef Name) {...@@ -102,18 +133,18 @@ static uint64_t getType(uint64_t Type, StringRef Name) {
102}133}
103134
104template <class ELFT>135template <class ELFT>
105InputSectionBase::InputSectionBase(elf::ObjectFile<ELFT> *File,136InputSectionBase::InputSectionBase(ObjFile<ELFT> &File,
106 const typename ELFT::Shdr *Hdr,137 const typename ELFT::Shdr &Hdr,
107 StringRef Name, Kind SectionKind)138 StringRef Name, Kind SectionKind)
108 : InputSectionBase(File, getFlags(Hdr->sh_flags),139 : InputSectionBase(&File, getFlags(Hdr.sh_flags),
109 getType(Hdr->sh_type, Name), Hdr->sh_entsize,140 getType(Hdr.sh_type, Name), Hdr.sh_entsize, Hdr.sh_link,
110 Hdr->sh_link, Hdr->sh_info, Hdr->sh_addralign,141 Hdr.sh_info, Hdr.sh_addralign,
111 getSectionContents(File, Hdr), Name, SectionKind) {142 getSectionContents(File, Hdr), Name, SectionKind) {
112 // We reject object files having insanely large alignments even though143 // We reject object files having insanely large alignments even though
113 // they are allowed by the spec. I think 4GB is a reasonable limitation.144 // they are allowed by the spec. I think 4GB is a reasonable limitation.
114 // We might want to relax this in the future.145 // We might want to relax this in the future.
115 if (Hdr->sh_addralign > UINT32_MAX)146 if (Hdr.sh_addralign > UINT32_MAX)
116 fatal(toString(File) + ": section sh_addralign is too large");147 fatal(toString(&File) + ": section sh_addralign is too large");
117}148}
118149
119size_t InputSectionBase::getSize() const {150size_t InputSectionBase::getSize() const {
...@@ -160,7 +191,7 @@ uint64_t SectionBase::getOffset(uint64_t Offset) const {...@@ -160,7 +191,7 @@ uint64_t SectionBase::getOffset(uint64_t Offset) const {
160OutputSection *SectionBase::getOutputSection() {191OutputSection *SectionBase::getOutputSection() {
161 InputSection *Sec;192 InputSection *Sec;
162 if (auto *IS = dyn_cast<InputSection>(this))193 if (auto *IS = dyn_cast<InputSection>(this))
163 Sec = IS;194 return IS->getParent();
164 else if (auto *MS = dyn_cast<MergeInputSection>(this))195 else if (auto *MS = dyn_cast<MergeInputSection>(this))
165 Sec = MS->getParent();196 Sec = MS->getParent();
166 else if (auto *EH = dyn_cast<EhInputSection>(this))197 else if (auto *EH = dyn_cast<EhInputSection>(this))
...@@ -170,29 +201,23 @@ OutputSection *SectionBase::getOutputSection() {...@@ -170,29 +201,23 @@ OutputSection *SectionBase::getOutputSection() {
170 return Sec ? Sec->getParent() : nullptr;201 return Sec ? Sec->getParent() : nullptr;
171}202}
172203
173// Uncompress section contents. Note that this function is called204// Uncompress section contents if required. Note that this function
174// from parallel_for_each, so it must be thread-safe.205// is called from parallelForEach, so it must be thread-safe.
175void InputSectionBase::uncompress() {206void InputSectionBase::maybeUncompress() {
207 if (UncompressBuf || !Decompressor::isCompressedELFSection(Flags, Name))
208 return;
209
176 Decompressor Dec = check(Decompressor::create(Name, toStringRef(Data),210 Decompressor Dec = check(Decompressor::create(Name, toStringRef(Data),
177 Config->IsLE, Config->Is64));211 Config->IsLE, Config->Is64));
178212
179 size_t Size = Dec.getDecompressedSize();213 size_t Size = Dec.getDecompressedSize();
180 char *OutputBuf;214 UncompressBuf.reset(new char[Size]());
181 {215 if (Error E = Dec.decompress({UncompressBuf.get(), Size}))
182 static std::mutex Mu;
183 std::lock_guard<std::mutex> Lock(Mu);
184 OutputBuf = BAlloc.Allocate<char>(Size);
185 }
186
187 if (Error E = Dec.decompress({OutputBuf, Size}))
188 fatal(toString(this) +216 fatal(toString(this) +
189 ": decompress failed: " + llvm::toString(std::move(E)));217 ": decompress failed: " + llvm::toString(std::move(E)));
190 this->Data = ArrayRef<uint8_t>((uint8_t *)OutputBuf, Size);
191 this->Flags &= ~(uint64_t)SHF_COMPRESSED;
192}
193218
194uint64_t SectionBase::getOffset(const DefinedRegular &Sym) const {219 Data = makeArrayRef((uint8_t *)UncompressBuf.get(), Size);
195 return getOffset(Sym.Value);220 Flags &= ~(uint64_t)SHF_COMPRESSED;
196}221}
197222
198InputSection *InputSectionBase::getLinkOrderDep() const {223InputSection *InputSectionBase::getLinkOrderDep() const {
...@@ -200,9 +225,9 @@ InputSection *InputSectionBase::getLinkOrderDep() const {...@@ -200,9 +225,9 @@ InputSection *InputSectionBase::getLinkOrderDep() const {
200 InputSectionBase *L = File->getSections()[Link];225 InputSectionBase *L = File->getSections()[Link];
201 if (auto *IS = dyn_cast<InputSection>(L))226 if (auto *IS = dyn_cast<InputSection>(L))
202 return IS;227 return IS;
203 error(228 error("a section with SHF_LINK_ORDER should not refer a non-regular "
204 "Merge and .eh_frame sections are not supported with SHF_LINK_ORDER " +229 "section: " +
205 toString(L));230 toString(L));
206 }231 }
207 return nullptr;232 return nullptr;
208}233}
...@@ -227,8 +252,8 @@ std::string InputSectionBase::getLocation(uint64_t Offset) {...@@ -227,8 +252,8 @@ std::string InputSectionBase::getLocation(uint64_t Offset) {
227 SrcFile = toString(File);252 SrcFile = toString(File);
228253
229 // Find a function symbol that encloses a given location.254 // Find a function symbol that encloses a given location.
230 for (SymbolBody *B : getFile<ELFT>()->getSymbols())255 for (Symbol *B : File->getSymbols())
231 if (auto *D = dyn_cast<DefinedRegular>(B))256 if (auto *D = dyn_cast<Defined>(B))
232 if (D->Section == this && D->Type == STT_FUNC)257 if (D->Section == this && D->Type == STT_FUNC)
233 if (D->Value <= Offset && Offset < D->Value + D->Size)258 if (D->Value <= Offset && Offset < D->Value + D->Size)
234 return SrcFile + ":(function " + toString(*D) + ")";259 return SrcFile + ":(function " + toString(*D) + ")";
...@@ -237,31 +262,17 @@ std::string InputSectionBase::getLocation(uint64_t Offset) {...@@ -237,31 +262,17 @@ std::string InputSectionBase::getLocation(uint64_t Offset) {
237 return (SrcFile + ":(" + Name + "+0x" + utohexstr(Offset) + ")").str();262 return (SrcFile + ":(" + Name + "+0x" + utohexstr(Offset) + ")").str();
238}263}
239264
240// Returns a source location string. This function is intended to be265// This function is intended to be used for constructing an error message.
241// used for constructing an error message. The returned message looks266// The returned message looks like this:
242// like this:
243//267//
244// foo.c:42 (/home/alice/possibly/very/long/path/foo.c:42)268// foo.c:42 (/home/alice/possibly/very/long/path/foo.c:42)
245//269//
246// Returns an empty string if there's no way to get line info.270// Returns an empty string if there's no way to get line info.
247template <class ELFT> std::string InputSectionBase::getSrcMsg(uint64_t Offset) {271std::string InputSectionBase::getSrcMsg(const Symbol &Sym, uint64_t Offset) {
248 // Synthetic sections don't have input files.272 // Synthetic sections don't have input files.
249 elf::ObjectFile<ELFT> *File = getFile<ELFT>();
250 if (!File)273 if (!File)
251 return "";274 return "";
252275 return File->getSrcMsg(Sym, *this, Offset);
253 Optional<DILineInfo> Info = File->getDILineInfo(this, Offset);
254
255 // File->SourceFile contains STT_FILE symbol, and that is a last resort.
256 if (!Info)
257 return File->SourceFile;
258
259 std::string Path = Info->FileName;
260 std::string Filename = path::filename(Path);
261 std::string Lineno = ":" + std::to_string(Info->Line);
262 if (Filename == Path)
263 return Filename + Lineno;
264 return Filename + Lineno + " (" + Path + Lineno + ")";
265}276}
266277
267// Returns a filename string along with an optional section name. This278// Returns a filename string along with an optional section name. This
...@@ -273,11 +284,10 @@ template <class ELFT> std::string InputSectionBase::getSrcMsg(uint64_t Offset) {...@@ -273,11 +284,10 @@ template <class ELFT> std::string InputSectionBase::getSrcMsg(uint64_t Offset) {
273// or284// or
274//285//
275// path/to/foo.o:(function bar) in archive path/to/bar.a286// path/to/foo.o:(function bar) in archive path/to/bar.a
276template <class ELFT> std::string InputSectionBase::getObjMsg(uint64_t Off) {287std::string InputSectionBase::getObjMsg(uint64_t Off) {
277 // Synthetic sections don't have input files.288 // Synthetic sections don't have input files.
278 elf::ObjectFile<ELFT> *File = getFile<ELFT>();
279 if (!File)289 if (!File)
280 return ("(internal):(" + Name + "+0x" + utohexstr(Off) + ")").str();290 return ("<internal>:(" + Name + "+0x" + utohexstr(Off) + ")").str();
281 std::string Filename = File->getName();291 std::string Filename = File->getName();
282292
283 std::string Archive;293 std::string Archive;
...@@ -285,8 +295,8 @@ template <class ELFT> std::string InputSectionBase::getObjMsg(uint64_t Off) {...@@ -285,8 +295,8 @@ template <class ELFT> std::string InputSectionBase::getObjMsg(uint64_t Off) {
285 Archive = (" in archive " + File->ArchiveName).str();295 Archive = (" in archive " + File->ArchiveName).str();
286296
287 // Find a symbol that encloses a given location.297 // Find a symbol that encloses a given location.
288 for (SymbolBody *B : getFile<ELFT>()->getSymbols())298 for (Symbol *B : File->getSymbols())
289 if (auto *D = dyn_cast<DefinedRegular>(B))299 if (auto *D = dyn_cast<Defined>(B))
290 if (D->Section == this && D->Value <= Off && Off < D->Value + D->Size)300 if (D->Section == this && D->Value <= Off && Off < D->Value + D->Size)
291 return Filename + ":(" + toString(*D) + ")" + Archive;301 return Filename + ":(" + toString(*D) + ")" + Archive;
292302
...@@ -295,17 +305,18 @@ template <class ELFT> std::string InputSectionBase::getObjMsg(uint64_t Off) {...@@ -295,17 +305,18 @@ template <class ELFT> std::string InputSectionBase::getObjMsg(uint64_t Off) {
295 .str();305 .str();
296}306}
297307
298InputSectionBase InputSectionBase::Discarded;308InputSection InputSection::Discarded(nullptr, 0, 0, 0, ArrayRef<uint8_t>(), "");
299309
300InputSection::InputSection(uint64_t Flags, uint32_t Type, uint32_t Alignment,310InputSection::InputSection(InputFile *F, uint64_t Flags, uint32_t Type,
301 ArrayRef<uint8_t> Data, StringRef Name, Kind K)311 uint32_t Alignment, ArrayRef<uint8_t> Data,
302 : InputSectionBase(nullptr, Flags, Type,312 StringRef Name, Kind K)
313 : InputSectionBase(F, Flags, Type,
303 /*Entsize*/ 0, /*Link*/ 0, /*Info*/ 0, Alignment, Data,314 /*Entsize*/ 0, /*Link*/ 0, /*Info*/ 0, Alignment, Data,
304 Name, K) {}315 Name, K) {}
305316
306template <class ELFT>317template <class ELFT>
307InputSection::InputSection(elf::ObjectFile<ELFT> *F,318InputSection::InputSection(ObjFile<ELFT> &F, const typename ELFT::Shdr &Header,
308 const typename ELFT::Shdr *Header, StringRef Name)319 StringRef Name)
309 : InputSectionBase(F, Header, Name, InputSectionBase::Regular) {}320 : InputSectionBase(F, Header, Name, InputSectionBase::Regular) {}
310321
311bool InputSection::classof(const SectionBase *S) {322bool InputSection::classof(const SectionBase *S) {
...@@ -313,10 +324,6 @@ bool InputSection::classof(const SectionBase *S) {...@@ -313,10 +324,6 @@ bool InputSection::classof(const SectionBase *S) {
313 S->kind() == SectionBase::Synthetic;324 S->kind() == SectionBase::Synthetic;
314}325}
315326
316bool InputSectionBase::classof(const SectionBase *S) {
317 return S->kind() != Output;
318}
319
320OutputSection *InputSection::getParent() const {327OutputSection *InputSection::getParent() const {
321 return cast_or_null<OutputSection>(Parent);328 return cast_or_null<OutputSection>(Parent);
322}329}
...@@ -333,15 +340,15 @@ template <class ELFT> void InputSection::copyShtGroup(uint8_t *Buf) {...@@ -333,15 +340,15 @@ template <class ELFT> void InputSection::copyShtGroup(uint8_t *Buf) {
333340
334 // Adjust section numbers because section numbers in an input object341 // Adjust section numbers because section numbers in an input object
335 // files are different in the output.342 // files are different in the output.
336 ArrayRef<InputSectionBase *> Sections = this->File->getSections();343 ArrayRef<InputSectionBase *> Sections = File->getSections();
337 for (uint32_t Idx : From.slice(1))344 for (uint32_t Idx : From.slice(1))
338 *To++ = Sections[Idx]->getOutputSection()->SectionIndex;345 *To++ = Sections[Idx]->getOutputSection()->SectionIndex;
339}346}
340347
341InputSectionBase *InputSection::getRelocatedSection() {348InputSectionBase *InputSection::getRelocatedSection() {
342 assert(this->Type == SHT_RELA || this->Type == SHT_REL);349 assert(Type == SHT_RELA || Type == SHT_REL);
343 ArrayRef<InputSectionBase *> Sections = this->File->getSections();350 ArrayRef<InputSectionBase *> Sections = File->getSections();
344 return Sections[this->Info];351 return Sections[Info];
345}352}
346353
347// This is used for -r and --emit-relocs. We can't use memcpy to copy354// This is used for -r and --emit-relocs. We can't use memcpy to copy
...@@ -349,15 +356,11 @@ InputSectionBase *InputSection::getRelocatedSection() {...@@ -349,15 +356,11 @@ InputSectionBase *InputSection::getRelocatedSection() {
349// for each relocation. So we copy relocations one by one.356// for each relocation. So we copy relocations one by one.
350template <class ELFT, class RelTy>357template <class ELFT, class RelTy>
351void InputSection::copyRelocations(uint8_t *Buf, ArrayRef<RelTy> Rels) {358void InputSection::copyRelocations(uint8_t *Buf, ArrayRef<RelTy> Rels) {
352 InputSectionBase *RelocatedSection = getRelocatedSection();359 InputSectionBase *Sec = getRelocatedSection();
353360
354 // Loop is slow and have complexity O(N*M), where N - amount of
355 // relocations and M - amount of symbols in symbol table.
356 // That happens because getSymbolIndex(...) call below performs
357 // simple linear search.
358 for (const RelTy &Rel : Rels) {361 for (const RelTy &Rel : Rels) {
359 uint32_t Type = Rel.getType(Config->IsMips64EL);362 RelType Type = Rel.getType(Config->IsMips64EL);
360 SymbolBody &Body = this->getFile<ELFT>()->getRelocTargetSym(Rel);363 Symbol &Sym = getFile<ELFT>()->getRelocTargetSym(Rel);
361364
362 auto *P = reinterpret_cast<typename ELFT::Rela *>(Buf);365 auto *P = reinterpret_cast<typename ELFT::Rela *>(Buf);
363 Buf += sizeof(RelTy);366 Buf += sizeof(RelTy);
...@@ -367,12 +370,11 @@ void InputSection::copyRelocations(uint8_t *Buf, ArrayRef<RelTy> Rels) {...@@ -367,12 +370,11 @@ void InputSection::copyRelocations(uint8_t *Buf, ArrayRef<RelTy> Rels) {
367370
368 // Output section VA is zero for -r, so r_offset is an offset within the371 // Output section VA is zero for -r, so r_offset is an offset within the
369 // section, but for --emit-relocs it is an virtual address.372 // section, but for --emit-relocs it is an virtual address.
370 P->r_offset = RelocatedSection->getOutputSection()->Addr +373 P->r_offset = Sec->getOutputSection()->Addr + Sec->getOffset(Rel.r_offset);
371 RelocatedSection->getOffset(Rel.r_offset);374 P->setSymbolAndType(InX::SymTab->getSymbolIndex(&Sym), Type,
372 P->setSymbolAndType(InX::SymTab->getSymbolIndex(&Body), Type,
373 Config->IsMips64EL);375 Config->IsMips64EL);
374376
375 if (Body.Type == STT_SECTION) {377 if (Sym.Type == STT_SECTION) {
376 // We combine multiple section symbols into only one per378 // We combine multiple section symbols into only one per
377 // section. This means we have to update the addend. That is379 // section. This means we have to update the addend. That is
378 // trivial for Elf_Rela, but for Elf_Rel we have to write to the380 // trivial for Elf_Rela, but for Elf_Rel we have to write to the
...@@ -382,19 +384,25 @@ void InputSection::copyRelocations(uint8_t *Buf, ArrayRef<RelTy> Rels) {...@@ -382,19 +384,25 @@ void InputSection::copyRelocations(uint8_t *Buf, ArrayRef<RelTy> Rels) {
382 // avoid having to parse and recreate .eh_frame, we just replace any384 // avoid having to parse and recreate .eh_frame, we just replace any
383 // relocation in it pointing to discarded sections with R_*_NONE, which385 // relocation in it pointing to discarded sections with R_*_NONE, which
384 // hopefully creates a frame that is ignored at runtime.386 // hopefully creates a frame that is ignored at runtime.
385 SectionBase *Section = cast<DefinedRegular>(Body).Section;387 auto *D = dyn_cast<Defined>(&Sym);
388 if (!D) {
389 error("STT_SECTION symbol should be defined");
390 continue;
391 }
392 SectionBase *Section = D->Section;
386 if (Section == &InputSection::Discarded) {393 if (Section == &InputSection::Discarded) {
387 P->setSymbolAndType(0, 0, false);394 P->setSymbolAndType(0, 0, false);
388 continue;395 continue;
389 }396 }
390397
391 if (Config->IsRela) {398 if (Config->IsRela) {
392 P->r_addend += Body.getVA() - Section->getOutputSection()->Addr;399 P->r_addend =
400 Sym.getVA(getAddend<ELFT>(Rel)) - Section->getOutputSection()->Addr;
393 } else if (Config->Relocatable) {401 } else if (Config->Relocatable) {
394 const uint8_t *BufLoc = RelocatedSection->Data.begin() + Rel.r_offset;402 const uint8_t *BufLoc = Sec->Data.begin() + Rel.r_offset;
395 RelocatedSection->Relocations.push_back(403 Sec->Relocations.push_back({R_ABS, Type, Rel.r_offset,
396 {R_ABS, Type, Rel.r_offset, Target->getImplicitAddend(BufLoc, Type),404 Target->getImplicitAddend(BufLoc, Type),
397 &Body});405 &Sym});
398 }406 }
399 }407 }
400408
...@@ -406,7 +414,7 @@ void InputSection::copyRelocations(uint8_t *Buf, ArrayRef<RelTy> Rels) {...@@ -406,7 +414,7 @@ void InputSection::copyRelocations(uint8_t *Buf, ArrayRef<RelTy> Rels) {
406// this context is the address of the place P. A further special case is that414// this context is the address of the place P. A further special case is that
407// branch relocations to an undefined weak reference resolve to the next415// branch relocations to an undefined weak reference resolve to the next
408// instruction.416// instruction.
409static uint32_t getARMUndefinedRelativeWeakVA(uint32_t Type, uint32_t A,417static uint32_t getARMUndefinedRelativeWeakVA(RelType Type, uint32_t A,
410 uint32_t P) {418 uint32_t P) {
411 switch (Type) {419 switch (Type) {
412 // Unresolved branch relocations to weak references resolve to next420 // Unresolved branch relocations to weak references resolve to next
...@@ -453,6 +461,7 @@ static uint64_t getAArch64UndefinedRelativeWeakVA(uint64_t Type, uint64_t A,...@@ -453,6 +461,7 @@ static uint64_t getAArch64UndefinedRelativeWeakVA(uint64_t Type, uint64_t A,
453 case R_AARCH64_PREL32:461 case R_AARCH64_PREL32:
454 case R_AARCH64_PREL64:462 case R_AARCH64_PREL64:
455 case R_AARCH64_ADR_PREL_LO21:463 case R_AARCH64_ADR_PREL_LO21:
464 case R_AARCH64_LD_PREL_LO19:
456 return P + A;465 return P + A;
457 }466 }
458 llvm_unreachable("AArch64 pc-relative relocation expected\n");467 llvm_unreachable("AArch64 pc-relative relocation expected\n");
...@@ -461,53 +470,55 @@ static uint64_t getAArch64UndefinedRelativeWeakVA(uint64_t Type, uint64_t A,...@@ -461,53 +470,55 @@ static uint64_t getAArch64UndefinedRelativeWeakVA(uint64_t Type, uint64_t A,
461// ARM SBREL relocations are of the form S + A - B where B is the static base470// ARM SBREL relocations are of the form S + A - B where B is the static base
462// The ARM ABI defines base to be "addressing origin of the output segment471// The ARM ABI defines base to be "addressing origin of the output segment
463// defining the symbol S". We defined the "addressing origin"/static base to be472// defining the symbol S". We defined the "addressing origin"/static base to be
464// the base of the PT_LOAD segment containing the Body.473// the base of the PT_LOAD segment containing the Sym.
465// The procedure call standard only defines a Read Write Position Independent474// The procedure call standard only defines a Read Write Position Independent
466// RWPI variant so in practice we should expect the static base to be the base475// RWPI variant so in practice we should expect the static base to be the base
467// of the RW segment.476// of the RW segment.
468static uint64_t getARMStaticBase(const SymbolBody &Body) {477static uint64_t getARMStaticBase(const Symbol &Sym) {
469 OutputSection *OS = Body.getOutputSection();478 OutputSection *OS = Sym.getOutputSection();
470 if (!OS || !OS->FirstInPtLoad)479 if (!OS || !OS->PtLoad || !OS->PtLoad->FirstSec)
471 fatal("SBREL relocation to " + Body.getName() + " without static base");480 fatal("SBREL relocation to " + Sym.getName() + " without static base");
472 return OS->FirstInPtLoad->Addr;481 return OS->PtLoad->FirstSec->Addr;
473}482}
474483
475static uint64_t getRelocTargetVA(uint32_t Type, int64_t A, uint64_t P,484static uint64_t getRelocTargetVA(RelType Type, int64_t A, uint64_t P,
476 const SymbolBody &Body, RelExpr Expr) {485 const Symbol &Sym, RelExpr Expr) {
477 switch (Expr) {486 switch (Expr) {
487 case R_INVALID:
488 return 0;
478 case R_ABS:489 case R_ABS:
479 case R_RELAX_GOT_PC_NOPIC:490 case R_RELAX_GOT_PC_NOPIC:
480 return Body.getVA(A);491 return Sym.getVA(A);
481 case R_ARM_SBREL:492 case R_ARM_SBREL:
482 return Body.getVA(A) - getARMStaticBase(Body);493 return Sym.getVA(A) - getARMStaticBase(Sym);
483 case R_GOT:494 case R_GOT:
484 case R_RELAX_TLS_GD_TO_IE_ABS:495 case R_RELAX_TLS_GD_TO_IE_ABS:
485 return Body.getGotVA() + A;496 return Sym.getGotVA() + A;
486 case R_GOTONLY_PC:497 case R_GOTONLY_PC:
487 return InX::Got->getVA() + A - P;498 return InX::Got->getVA() + A - P;
488 case R_GOTONLY_PC_FROM_END:499 case R_GOTONLY_PC_FROM_END:
489 return InX::Got->getVA() + A - P + InX::Got->getSize();500 return InX::Got->getVA() + A - P + InX::Got->getSize();
490 case R_GOTREL:501 case R_GOTREL:
491 return Body.getVA(A) - InX::Got->getVA();502 return Sym.getVA(A) - InX::Got->getVA();
492 case R_GOTREL_FROM_END:503 case R_GOTREL_FROM_END:
493 return Body.getVA(A) - InX::Got->getVA() - InX::Got->getSize();504 return Sym.getVA(A) - InX::Got->getVA() - InX::Got->getSize();
494 case R_GOT_FROM_END:505 case R_GOT_FROM_END:
495 case R_RELAX_TLS_GD_TO_IE_END:506 case R_RELAX_TLS_GD_TO_IE_END:
496 return Body.getGotOffset() + A - InX::Got->getSize();507 return Sym.getGotOffset() + A - InX::Got->getSize();
497 case R_GOT_OFF:508 case R_GOT_OFF:
498 return Body.getGotOffset() + A;509 return Sym.getGotOffset() + A;
499 case R_GOT_PAGE_PC:510 case R_GOT_PAGE_PC:
500 case R_RELAX_TLS_GD_TO_IE_PAGE_PC:511 case R_RELAX_TLS_GD_TO_IE_PAGE_PC:
501 return getAArch64Page(Body.getGotVA() + A) - getAArch64Page(P);512 return getAArch64Page(Sym.getGotVA() + A) - getAArch64Page(P);
502 case R_GOT_PC:513 case R_GOT_PC:
503 case R_RELAX_TLS_GD_TO_IE:514 case R_RELAX_TLS_GD_TO_IE:
504 return Body.getGotVA() + A - P;515 return Sym.getGotVA() + A - P;
505 case R_HINT:516 case R_HINT:
506 case R_NONE:517 case R_NONE:
507 case R_TLSDESC_CALL:518 case R_TLSDESC_CALL:
508 llvm_unreachable("cannot relocate hint relocs");519 llvm_unreachable("cannot relocate hint relocs");
509 case R_MIPS_GOTREL:520 case R_MIPS_GOTREL:
510 return Body.getVA(A) - InX::MipsGot->getGp();521 return Sym.getVA(A) - InX::MipsGot->getGp();
511 case R_MIPS_GOT_GP:522 case R_MIPS_GOT_GP:
512 return InX::MipsGot->getGp() + A;523 return InX::MipsGot->getGp() + A;
513 case R_MIPS_GOT_GP_PC: {524 case R_MIPS_GOT_GP_PC: {
...@@ -515,42 +526,47 @@ static uint64_t getRelocTargetVA(uint32_t Type, int64_t A, uint64_t P,...@@ -515,42 +526,47 @@ static uint64_t getRelocTargetVA(uint32_t Type, int64_t A, uint64_t P,
515 // is _gp_disp symbol. In that case we should use the following526 // is _gp_disp symbol. In that case we should use the following
516 // formula for calculation "AHL + GP - P + 4". For details see p. 4-19 at527 // formula for calculation "AHL + GP - P + 4". For details see p. 4-19 at
517 // ftp://www.linux-mips.org/pub/linux/mips/doc/ABI/mipsabi.pdf528 // ftp://www.linux-mips.org/pub/linux/mips/doc/ABI/mipsabi.pdf
529 // microMIPS variants of these relocations use slightly different
530 // expressions: AHL + GP - P + 3 for %lo() and AHL + GP - P - 1 for %hi()
531 // to correctly handle less-sugnificant bit of the microMIPS symbol.
518 uint64_t V = InX::MipsGot->getGp() + A - P;532 uint64_t V = InX::MipsGot->getGp() + A - P;
519 if (Type == R_MIPS_LO16)533 if (Type == R_MIPS_LO16 || Type == R_MICROMIPS_LO16)
520 V += 4;534 V += 4;
535 if (Type == R_MICROMIPS_LO16 || Type == R_MICROMIPS_HI16)
536 V -= 1;
521 return V;537 return V;
522 }538 }
523 case R_MIPS_GOT_LOCAL_PAGE:539 case R_MIPS_GOT_LOCAL_PAGE:
524 // If relocation against MIPS local symbol requires GOT entry, this entry540 // If relocation against MIPS local symbol requires GOT entry, this entry
525 // should be initialized by 'page address'. This address is high 16-bits541 // should be initialized by 'page address'. This address is high 16-bits
526 // of sum the symbol's value and the addend.542 // of sum the symbol's value and the addend.
527 return InX::MipsGot->getVA() + InX::MipsGot->getPageEntryOffset(Body, A) -543 return InX::MipsGot->getVA() + InX::MipsGot->getPageEntryOffset(Sym, A) -
528 InX::MipsGot->getGp();544 InX::MipsGot->getGp();
529 case R_MIPS_GOT_OFF:545 case R_MIPS_GOT_OFF:
530 case R_MIPS_GOT_OFF32:546 case R_MIPS_GOT_OFF32:
531 // In case of MIPS if a GOT relocation has non-zero addend this addend547 // In case of MIPS if a GOT relocation has non-zero addend this addend
532 // should be applied to the GOT entry content not to the GOT entry offset.548 // should be applied to the GOT entry content not to the GOT entry offset.
533 // That is why we use separate expression type.549 // That is why we use separate expression type.
534 return InX::MipsGot->getVA() + InX::MipsGot->getBodyEntryOffset(Body, A) -550 return InX::MipsGot->getVA() + InX::MipsGot->getSymEntryOffset(Sym, A) -
535 InX::MipsGot->getGp();551 InX::MipsGot->getGp();
536 case R_MIPS_TLSGD:552 case R_MIPS_TLSGD:
537 return InX::MipsGot->getVA() + InX::MipsGot->getTlsOffset() +553 return InX::MipsGot->getVA() + InX::MipsGot->getTlsOffset() +
538 InX::MipsGot->getGlobalDynOffset(Body) - InX::MipsGot->getGp();554 InX::MipsGot->getGlobalDynOffset(Sym) - InX::MipsGot->getGp();
539 case R_MIPS_TLSLD:555 case R_MIPS_TLSLD:
540 return InX::MipsGot->getVA() + InX::MipsGot->getTlsOffset() +556 return InX::MipsGot->getVA() + InX::MipsGot->getTlsOffset() +
541 InX::MipsGot->getTlsIndexOff() - InX::MipsGot->getGp();557 InX::MipsGot->getTlsIndexOff() - InX::MipsGot->getGp();
542 case R_PAGE_PC:558 case R_PAGE_PC:
543 case R_PLT_PAGE_PC: {559 case R_PLT_PAGE_PC: {
544 uint64_t Dest;560 uint64_t Dest;
545 if (Body.isUndefined() && !Body.isLocal() && Body.symbol()->isWeak())561 if (Sym.isUndefWeak())
546 Dest = getAArch64Page(A);562 Dest = getAArch64Page(A);
547 else563 else
548 Dest = getAArch64Page(Body.getVA(A));564 Dest = getAArch64Page(Sym.getVA(A));
549 return Dest - getAArch64Page(P);565 return Dest - getAArch64Page(P);
550 }566 }
551 case R_PC: {567 case R_PC: {
552 uint64_t Dest;568 uint64_t Dest;
553 if (Body.isUndefined() && !Body.isLocal() && Body.symbol()->isWeak()) {569 if (Sym.isUndefWeak()) {
554 // On ARM and AArch64 a branch to an undefined weak resolves to the570 // On ARM and AArch64 a branch to an undefined weak resolves to the
555 // next instruction, otherwise the place.571 // next instruction, otherwise the place.
556 if (Config->EMachine == EM_ARM)572 if (Config->EMachine == EM_ARM)
...@@ -558,19 +574,19 @@ static uint64_t getRelocTargetVA(uint32_t Type, int64_t A, uint64_t P,...@@ -558,19 +574,19 @@ static uint64_t getRelocTargetVA(uint32_t Type, int64_t A, uint64_t P,
558 else if (Config->EMachine == EM_AARCH64)574 else if (Config->EMachine == EM_AARCH64)
559 Dest = getAArch64UndefinedRelativeWeakVA(Type, A, P);575 Dest = getAArch64UndefinedRelativeWeakVA(Type, A, P);
560 else576 else
561 Dest = Body.getVA(A);577 Dest = Sym.getVA(A);
562 } else {578 } else {
563 Dest = Body.getVA(A);579 Dest = Sym.getVA(A);
564 }580 }
565 return Dest - P;581 return Dest - P;
566 }582 }
567 case R_PLT:583 case R_PLT:
568 return Body.getPltVA() + A;584 return Sym.getPltVA() + A;
569 case R_PLT_PC:585 case R_PLT_PC:
570 case R_PPC_PLT_OPD:586 case R_PPC_PLT_OPD:
571 return Body.getPltVA() + A - P;587 return Sym.getPltVA() + A - P;
572 case R_PPC_OPD: {588 case R_PPC_OPD: {
573 uint64_t SymVA = Body.getVA(A);589 uint64_t SymVA = Sym.getVA(A);
574 // If we have an undefined weak symbol, we might get here with a symbol590 // If we have an undefined weak symbol, we might get here with a symbol
575 // address of zero. That could overflow, but the code must be unreachable,591 // address of zero. That could overflow, but the code must be unreachable,
576 // so don't bother doing anything at all.592 // so don't bother doing anything at all.
...@@ -590,7 +606,7 @@ static uint64_t getRelocTargetVA(uint32_t Type, int64_t A, uint64_t P,...@@ -590,7 +606,7 @@ static uint64_t getRelocTargetVA(uint32_t Type, int64_t A, uint64_t P,
590 case R_PPC_TOC:606 case R_PPC_TOC:
591 return getPPC64TocBase() + A;607 return getPPC64TocBase() + A;
592 case R_RELAX_GOT_PC:608 case R_RELAX_GOT_PC:
593 return Body.getVA(A) - P;609 return Sym.getVA(A) - P;
594 case R_RELAX_TLS_GD_TO_LE:610 case R_RELAX_TLS_GD_TO_LE:
595 case R_RELAX_TLS_IE_TO_LE:611 case R_RELAX_TLS_IE_TO_LE:
596 case R_RELAX_TLS_LD_TO_LE:612 case R_RELAX_TLS_LD_TO_LE:
...@@ -600,26 +616,25 @@ static uint64_t getRelocTargetVA(uint32_t Type, int64_t A, uint64_t P,...@@ -600,26 +616,25 @@ static uint64_t getRelocTargetVA(uint32_t Type, int64_t A, uint64_t P,
600 // lld and .tbss is not referenced, it gets reclaimed and we don't616 // lld and .tbss is not referenced, it gets reclaimed and we don't
601 // create a TLS program header. Therefore, we resolve this617 // create a TLS program header. Therefore, we resolve this
602 // statically to zero.618 // statically to zero.
603 if (Body.isTls() && (Body.isLazy() || Body.isUndefined()) &&619 if (Sym.isTls() && Sym.isUndefWeak())
604 Body.symbol()->isWeak())
605 return 0;620 return 0;
606 if (Target->TcbSize)621 if (Target->TcbSize)
607 return Body.getVA(A) + alignTo(Target->TcbSize, Out::TlsPhdr->p_align);622 return Sym.getVA(A) + alignTo(Target->TcbSize, Out::TlsPhdr->p_align);
608 return Body.getVA(A) - Out::TlsPhdr->p_memsz;623 return Sym.getVA(A) - Out::TlsPhdr->p_memsz;
609 case R_RELAX_TLS_GD_TO_LE_NEG:624 case R_RELAX_TLS_GD_TO_LE_NEG:
610 case R_NEG_TLS:625 case R_NEG_TLS:
611 return Out::TlsPhdr->p_memsz - Body.getVA(A);626 return Out::TlsPhdr->p_memsz - Sym.getVA(A);
612 case R_SIZE:627 case R_SIZE:
613 return A; // Body.getSize was already folded into the addend.628 return A; // Sym.getSize was already folded into the addend.
614 case R_TLSDESC:629 case R_TLSDESC:
615 return InX::Got->getGlobalDynAddr(Body) + A;630 return InX::Got->getGlobalDynAddr(Sym) + A;
616 case R_TLSDESC_PAGE:631 case R_TLSDESC_PAGE:
617 return getAArch64Page(InX::Got->getGlobalDynAddr(Body) + A) -632 return getAArch64Page(InX::Got->getGlobalDynAddr(Sym) + A) -
618 getAArch64Page(P);633 getAArch64Page(P);
619 case R_TLSGD:634 case R_TLSGD:
620 return InX::Got->getGlobalDynOffset(Body) + A - InX::Got->getSize();635 return InX::Got->getGlobalDynOffset(Sym) + A - InX::Got->getSize();
621 case R_TLSGD_PC:636 case R_TLSGD_PC:
622 return InX::Got->getGlobalDynAddr(Body) + A - P;637 return InX::Got->getGlobalDynAddr(Sym) + A - P;
623 case R_TLSLD:638 case R_TLSLD:
624 return InX::Got->getTlsIndexOff() + A - InX::Got->getSize();639 return InX::Got->getTlsIndexOff() + A - InX::Got->getSize();
625 case R_TLSLD_PC:640 case R_TLSLD_PC:
...@@ -637,64 +652,62 @@ static uint64_t getRelocTargetVA(uint32_t Type, int64_t A, uint64_t P,...@@ -637,64 +652,62 @@ static uint64_t getRelocTargetVA(uint32_t Type, int64_t A, uint64_t P,
637// function as a performance optimization.652// function as a performance optimization.
638template <class ELFT, class RelTy>653template <class ELFT, class RelTy>
639void InputSection::relocateNonAlloc(uint8_t *Buf, ArrayRef<RelTy> Rels) {654void InputSection::relocateNonAlloc(uint8_t *Buf, ArrayRef<RelTy> Rels) {
655 const unsigned Bits = sizeof(typename ELFT::uint) * 8;
656
640 for (const RelTy &Rel : Rels) {657 for (const RelTy &Rel : Rels) {
641 uint32_t Type = Rel.getType(Config->IsMips64EL);658 RelType Type = Rel.getType(Config->IsMips64EL);
642 uint64_t Offset = getOffset(Rel.r_offset);659 uint64_t Offset = getOffset(Rel.r_offset);
643 uint8_t *BufLoc = Buf + Offset;660 uint8_t *BufLoc = Buf + Offset;
644 int64_t Addend = getAddend<ELFT>(Rel);661 int64_t Addend = getAddend<ELFT>(Rel);
645 if (!RelTy::IsRela)662 if (!RelTy::IsRela)
646 Addend += Target->getImplicitAddend(BufLoc, Type);663 Addend += Target->getImplicitAddend(BufLoc, Type);
647664
648 SymbolBody &Sym = this->getFile<ELFT>()->getRelocTargetSym(Rel);665 Symbol &Sym = getFile<ELFT>()->getRelocTargetSym(Rel);
649 RelExpr Expr = Target->getRelExpr(Type, Sym, BufLoc);666 RelExpr Expr = Target->getRelExpr(Type, Sym, BufLoc);
650 if (Expr == R_NONE)667 if (Expr == R_NONE)
651 continue;668 continue;
652 if (Expr != R_ABS) {669 if (Expr != R_ABS) {
653 error(this->getLocation<ELFT>(Offset) + ": has non-ABS reloc");670 // GCC 8.0 or earlier have a bug that it emits R_386_GOTPC relocations
671 // against _GLOBAL_OFFSET_TABLE for .debug_info. The bug seems to have
672 // been fixed in 2017: https://gcc.gnu.org/bugzilla/show_bug.cgi?id=82630,
673 // but we need to keep this bug-compatible code for a while.
674 if (Config->EMachine == EM_386 && Type == R_386_GOTPC)
675 continue;
676
677 error(getLocation<ELFT>(Offset) + ": has non-ABS relocation " +
678 toString(Type) + " against symbol '" + toString(Sym) + "'");
654 return;679 return;
655 }680 }
656681
657 uint64_t AddrLoc = getParent()->Addr + Offset;682 if (Sym.isTls() && !Out::TlsPhdr)
658 uint64_t SymVA = 0;683 Target->relocateOne(BufLoc, Type, 0);
659 if (!Sym.isTls() || Out::TlsPhdr)684 else
660 SymVA = SignExtend64<sizeof(typename ELFT::uint) * 8>(685 Target->relocateOne(BufLoc, Type, SignExtend64<Bits>(Sym.getVA(Addend)));
661 getRelocTargetVA(Type, Addend, AddrLoc, Sym, R_ABS));
662 Target->relocateOne(BufLoc, Type, SymVA);
663 }686 }
664}687}
665688
666template <class ELFT> elf::ObjectFile<ELFT> *InputSectionBase::getFile() const {
667 return cast_or_null<elf::ObjectFile<ELFT>>(File);
668}
669
670template <class ELFT>689template <class ELFT>
671void InputSectionBase::relocate(uint8_t *Buf, uint8_t *BufEnd) {690void InputSectionBase::relocate(uint8_t *Buf, uint8_t *BufEnd) {
672 if (Flags & SHF_ALLOC)691 if (Flags & SHF_ALLOC) {
673 relocateAlloc(Buf, BufEnd);692 relocateAlloc(Buf, BufEnd);
674 else693 return;
675 relocateNonAlloc<ELFT>(Buf, BufEnd);694 }
676}
677695
678template <class ELFT>696 auto *Sec = cast<InputSection>(this);
679void InputSectionBase::relocateNonAlloc(uint8_t *Buf, uint8_t *BufEnd) {697 if (Sec->AreRelocsRela)
680 // scanReloc function in Writer.cpp constructs Relocations698 Sec->relocateNonAlloc<ELFT>(Buf, Sec->template relas<ELFT>());
681 // vector only for SHF_ALLOC'ed sections. For other sections,
682 // we handle relocations directly here.
683 auto *IS = cast<InputSection>(this);
684 assert(!(IS->Flags & SHF_ALLOC));
685 if (IS->AreRelocsRela)
686 IS->relocateNonAlloc<ELFT>(Buf, IS->template relas<ELFT>());
687 else699 else
688 IS->relocateNonAlloc<ELFT>(Buf, IS->template rels<ELFT>());700 Sec->relocateNonAlloc<ELFT>(Buf, Sec->template rels<ELFT>());
689}701}
690702
691void InputSectionBase::relocateAlloc(uint8_t *Buf, uint8_t *BufEnd) {703void InputSectionBase::relocateAlloc(uint8_t *Buf, uint8_t *BufEnd) {
692 assert(Flags & SHF_ALLOC);704 assert(Flags & SHF_ALLOC);
693 const unsigned Bits = Config->Wordsize * 8;705 const unsigned Bits = Config->Wordsize * 8;
706
694 for (const Relocation &Rel : Relocations) {707 for (const Relocation &Rel : Relocations) {
695 uint64_t Offset = getOffset(Rel.Offset);708 uint64_t Offset = getOffset(Rel.Offset);
696 uint8_t *BufLoc = Buf + Offset;709 uint8_t *BufLoc = Buf + Offset;
697 uint32_t Type = Rel.Type;710 RelType Type = Rel.Type;
698711
699 uint64_t AddrLoc = getOutputSection()->Addr + Offset;712 uint64_t AddrLoc = getOutputSection()->Addr + Offset;
700 RelExpr Expr = Rel.Expr;713 RelExpr Expr = Rel.Expr;
...@@ -735,7 +748,7 @@ void InputSectionBase::relocateAlloc(uint8_t *Buf, uint8_t *BufEnd) {...@@ -735,7 +748,7 @@ void InputSectionBase::relocateAlloc(uint8_t *Buf, uint8_t *BufEnd) {
735}748}
736749
737template <class ELFT> void InputSection::writeTo(uint8_t *Buf) {750template <class ELFT> void InputSection::writeTo(uint8_t *Buf) {
738 if (this->Type == SHT_NOBITS)751 if (Type == SHT_NOBITS)
739 return;752 return;
740753
741 if (auto *S = dyn_cast<SyntheticSection>(this)) {754 if (auto *S = dyn_cast<SyntheticSection>(this)) {
...@@ -745,19 +758,17 @@ template <class ELFT> void InputSection::writeTo(uint8_t *Buf) {...@@ -745,19 +758,17 @@ template <class ELFT> void InputSection::writeTo(uint8_t *Buf) {
745758
746 // If -r or --emit-relocs is given, then an InputSection759 // If -r or --emit-relocs is given, then an InputSection
747 // may be a relocation section.760 // may be a relocation section.
748 if (this->Type == SHT_RELA) {761 if (Type == SHT_RELA) {
749 copyRelocations<ELFT>(Buf + OutSecOff,762 copyRelocations<ELFT>(Buf + OutSecOff, getDataAs<typename ELFT::Rela>());
750 this->template getDataAs<typename ELFT::Rela>());
751 return;763 return;
752 }764 }
753 if (this->Type == SHT_REL) {765 if (Type == SHT_REL) {
754 copyRelocations<ELFT>(Buf + OutSecOff,766 copyRelocations<ELFT>(Buf + OutSecOff, getDataAs<typename ELFT::Rel>());
755 this->template getDataAs<typename ELFT::Rel>());
756 return;767 return;
757 }768 }
758769
759 // If -r is given, we may have a SHT_GROUP section.770 // If -r is given, we may have a SHT_GROUP section.
760 if (this->Type == SHT_GROUP) {771 if (Type == SHT_GROUP) {
761 copyShtGroup<ELFT>(Buf + OutSecOff);772 copyShtGroup<ELFT>(Buf + OutSecOff);
762 return;773 return;
763 }774 }
...@@ -766,34 +777,25 @@ template <class ELFT> void InputSection::writeTo(uint8_t *Buf) {...@@ -766,34 +777,25 @@ template <class ELFT> void InputSection::writeTo(uint8_t *Buf) {
766 // and then apply relocations.777 // and then apply relocations.
767 memcpy(Buf + OutSecOff, Data.data(), Data.size());778 memcpy(Buf + OutSecOff, Data.data(), Data.size());
768 uint8_t *BufEnd = Buf + OutSecOff + Data.size();779 uint8_t *BufEnd = Buf + OutSecOff + Data.size();
769 this->relocate<ELFT>(Buf, BufEnd);780 relocate<ELFT>(Buf, BufEnd);
770}781}
771782
772void InputSection::replace(InputSection *Other) {783void InputSection::replace(InputSection *Other) {
773 this->Alignment = std::max(this->Alignment, Other->Alignment);784 Alignment = std::max(Alignment, Other->Alignment);
774 Other->Repl = this->Repl;785 Other->Repl = Repl;
775 Other->Live = false;786 Other->Live = false;
776}787}
777788
778template <class ELFT>789template <class ELFT>
779EhInputSection::EhInputSection(elf::ObjectFile<ELFT> *F,790EhInputSection::EhInputSection(ObjFile<ELFT> &F,
780 const typename ELFT::Shdr *Header,791 const typename ELFT::Shdr &Header,
781 StringRef Name)792 StringRef Name)
782 : InputSectionBase(F, Header, Name, InputSectionBase::EHFrame) {793 : InputSectionBase(F, Header, Name, InputSectionBase::EHFrame) {}
783 // Mark .eh_frame sections as live by default because there are
784 // usually no relocations that point to .eh_frames. Otherwise,
785 // the garbage collector would drop all .eh_frame sections.
786 this->Live = true;
787}
788794
789SyntheticSection *EhInputSection::getParent() const {795SyntheticSection *EhInputSection::getParent() const {
790 return cast_or_null<SyntheticSection>(Parent);796 return cast_or_null<SyntheticSection>(Parent);
791}797}
792798
793bool EhInputSection::classof(const SectionBase *S) {
794 return S->kind() == InputSectionBase::EHFrame;
795}
796
797// Returns the index of the first relocation that points to a region between799// Returns the index of the first relocation that points to a region between
798// Begin and Begin+Size.800// Begin and Begin+Size.
799template <class IntTy, class RelTy>801template <class IntTy, class RelTy>
...@@ -817,26 +819,21 @@ static unsigned getReloc(IntTy Begin, IntTy Size, const ArrayRef<RelTy> &Rels,...@@ -817,26 +819,21 @@ static unsigned getReloc(IntTy Begin, IntTy Size, const ArrayRef<RelTy> &Rels,
817// This function splits an input section into records and returns them.819// This function splits an input section into records and returns them.
818template <class ELFT> void EhInputSection::split() {820template <class ELFT> void EhInputSection::split() {
819 // Early exit if already split.821 // Early exit if already split.
820 if (!this->Pieces.empty())822 if (!Pieces.empty())
821 return;823 return;
822824
823 if (this->NumRelocations) {825 if (AreRelocsRela)
824 if (this->AreRelocsRela)826 split<ELFT>(relas<ELFT>());
825 split<ELFT>(this->relas<ELFT>());827 else
826 else828 split<ELFT>(rels<ELFT>());
827 split<ELFT>(this->rels<ELFT>());
828 return;
829 }
830 split<ELFT>(makeArrayRef<typename ELFT::Rela>(nullptr, nullptr));
831}829}
832830
833template <class ELFT, class RelTy>831template <class ELFT, class RelTy>
834void EhInputSection::split(ArrayRef<RelTy> Rels) {832void EhInputSection::split(ArrayRef<RelTy> Rels) {
835 ArrayRef<uint8_t> Data = this->Data;
836 unsigned RelI = 0;833 unsigned RelI = 0;
837 for (size_t Off = 0, End = Data.size(); Off != End;) {834 for (size_t Off = 0, End = Data.size(); Off != End;) {
838 size_t Size = readEhRecordSize<ELFT>(this, Off);835 size_t Size = readEhRecordSize(this, Off);
839 this->Pieces.emplace_back(Off, this, Size, getReloc(Off, Size, Rels, RelI));836 Pieces.emplace_back(Off, this, Size, getReloc(Off, Size, Rels, RelI));
840 // The empty record is the end marker.837 // The empty record is the end marker.
841 if (Size == 4)838 if (Size == 4)
842 break;839 break;
...@@ -844,9 +841,8 @@ void EhInputSection::split(ArrayRef<RelTy> Rels) {...@@ -844,9 +841,8 @@ void EhInputSection::split(ArrayRef<RelTy> Rels) {
844 }841 }
845}842}
846843
847static size_t findNull(ArrayRef<uint8_t> A, size_t EntSize) {844static size_t findNull(StringRef S, size_t EntSize) {
848 // Optimize the common case.845 // Optimize the common case.
849 StringRef S((const char *)A.data(), A.size());
850 if (EntSize == 1)846 if (EntSize == 1)
851 return S.find(0);847 return S.find(0);
852848
...@@ -866,15 +862,17 @@ SyntheticSection *MergeInputSection::getParent() const {...@@ -866,15 +862,17 @@ SyntheticSection *MergeInputSection::getParent() const {
866// null-terminated strings.862// null-terminated strings.
867void MergeInputSection::splitStrings(ArrayRef<uint8_t> Data, size_t EntSize) {863void MergeInputSection::splitStrings(ArrayRef<uint8_t> Data, size_t EntSize) {
868 size_t Off = 0;864 size_t Off = 0;
869 bool IsAlloc = this->Flags & SHF_ALLOC;865 bool IsAlloc = Flags & SHF_ALLOC;
870 while (!Data.empty()) {866 StringRef S = toStringRef(Data);
871 size_t End = findNull(Data, EntSize);867
868 while (!S.empty()) {
869 size_t End = findNull(S, EntSize);
872 if (End == StringRef::npos)870 if (End == StringRef::npos)
873 fatal(toString(this) + ": string is not null terminated");871 fatal(toString(this) + ": string is not null terminated");
874 size_t Size = End + EntSize;872 size_t Size = End + EntSize;
875 Pieces.emplace_back(Off, !IsAlloc);873
876 Hashes.push_back(hash_value(toStringRef(Data.slice(0, Size))));874 Pieces.emplace_back(Off, xxHash64(S.substr(0, Size)), !IsAlloc);
877 Data = Data.slice(Size);875 S = S.substr(Size);
878 Off += Size;876 Off += Size;
879 }877 }
880}878}
...@@ -885,40 +883,42 @@ void MergeInputSection::splitNonStrings(ArrayRef<uint8_t> Data,...@@ -885,40 +883,42 @@ void MergeInputSection::splitNonStrings(ArrayRef<uint8_t> Data,
885 size_t EntSize) {883 size_t EntSize) {
886 size_t Size = Data.size();884 size_t Size = Data.size();
887 assert((Size % EntSize) == 0);885 assert((Size % EntSize) == 0);
888 bool IsAlloc = this->Flags & SHF_ALLOC;886 bool IsAlloc = Flags & SHF_ALLOC;
889 for (unsigned I = 0, N = Size; I != N; I += EntSize) {887
890 Hashes.push_back(hash_value(toStringRef(Data.slice(I, EntSize))));888 for (size_t I = 0; I != Size; I += EntSize)
891 Pieces.emplace_back(I, !IsAlloc);889 Pieces.emplace_back(I, xxHash64(toStringRef(Data.slice(I, EntSize))),
892 }890 !IsAlloc);
893}891}
894892
895template <class ELFT>893template <class ELFT>
896MergeInputSection::MergeInputSection(elf::ObjectFile<ELFT> *F,894MergeInputSection::MergeInputSection(ObjFile<ELFT> &F,
897 const typename ELFT::Shdr *Header,895 const typename ELFT::Shdr &Header,
898 StringRef Name)896 StringRef Name)
899 : InputSectionBase(F, Header, Name, InputSectionBase::Merge) {}897 : InputSectionBase(F, Header, Name, InputSectionBase::Merge) {}
900898
899MergeInputSection::MergeInputSection(uint64_t Flags, uint32_t Type,
900 uint64_t Entsize, ArrayRef<uint8_t> Data,
901 StringRef Name)
902 : InputSectionBase(nullptr, Flags, Type, Entsize, /*Link*/ 0, /*Info*/ 0,
903 /*Alignment*/ Entsize, Data, Name, SectionBase::Merge) {}
904
901// This function is called after we obtain a complete list of input sections905// This function is called after we obtain a complete list of input sections
902// that need to be linked. This is responsible to split section contents906// that need to be linked. This is responsible to split section contents
903// into small chunks for further processing.907// into small chunks for further processing.
904//908//
905// Note that this function is called from parallel_for_each. This must be909// Note that this function is called from parallelForEach. This must be
906// thread-safe (i.e. no memory allocation from the pools).910// thread-safe (i.e. no memory allocation from the pools).
907void MergeInputSection::splitIntoPieces() {911void MergeInputSection::splitIntoPieces() {
908 ArrayRef<uint8_t> Data = this->Data;912 assert(Pieces.empty());
909 uint64_t EntSize = this->Entsize;913
910 if (this->Flags & SHF_STRINGS)914 if (Flags & SHF_STRINGS)
911 splitStrings(Data, EntSize);915 splitStrings(Data, Entsize);
912 else916 else
913 splitNonStrings(Data, EntSize);917 splitNonStrings(Data, Entsize);
914918
915 if (Config->GcSections && (this->Flags & SHF_ALLOC))919 if (Config->GcSections && (Flags & SHF_ALLOC))
916 for (uint64_t Off : LiveOffsets)920 for (uint64_t Off : LiveOffsets)
917 this->getSectionPiece(Off)->Live = true;921 getSectionPiece(Off)->Live = true;
918}
919
920bool MergeInputSection::classof(const SectionBase *S) {
921 return S->kind() == InputSectionBase::Merge;
922}922}
923923
924// Do binary search to get a section piece at a given input offset.924// Do binary search to get a section piece at a given input offset.
...@@ -941,8 +941,7 @@ static It fastUpperBound(It First, It Last, const T &Value, Compare Comp) {...@@ -941,8 +941,7 @@ static It fastUpperBound(It First, It Last, const T &Value, Compare Comp) {
941}941}
942942
943const SectionPiece *MergeInputSection::getSectionPiece(uint64_t Offset) const {943const SectionPiece *MergeInputSection::getSectionPiece(uint64_t Offset) const {
944 uint64_t Size = this->Data.size();944 if (Data.size() <= Offset)
945 if (Offset >= Size)
946 fatal(toString(this) + ": entry is past the end of the section");945 fatal(toString(this) + ": entry is past the end of the section");
947946
948 // Find the element this offset points to.947 // Find the element this offset points to.
...@@ -957,24 +956,24 @@ const SectionPiece *MergeInputSection::getSectionPiece(uint64_t Offset) const {...@@ -957,24 +956,24 @@ const SectionPiece *MergeInputSection::getSectionPiece(uint64_t Offset) const {
957// Because contents of a mergeable section is not contiguous in output,956// Because contents of a mergeable section is not contiguous in output,
958// it is not just an addition to a base output offset.957// it is not just an addition to a base output offset.
959uint64_t MergeInputSection::getOffset(uint64_t Offset) const {958uint64_t MergeInputSection::getOffset(uint64_t Offset) const {
959 if (!Live)
960 return 0;
961
960 // Initialize OffsetMap lazily.962 // Initialize OffsetMap lazily.
961 llvm::call_once(InitOffsetMap, [&] {963 llvm::call_once(InitOffsetMap, [&] {
962 OffsetMap.reserve(Pieces.size());964 OffsetMap.reserve(Pieces.size());
963 for (const SectionPiece &Piece : Pieces)965 for (size_t I = 0; I < Pieces.size(); ++I)
964 OffsetMap[Piece.InputOff] = Piece.OutputOff;966 OffsetMap[Pieces[I].InputOff] = I;
965 });967 });
966968
967 // Find a string starting at a given offset.969 // Find a string starting at a given offset.
968 auto It = OffsetMap.find(Offset);970 auto It = OffsetMap.find(Offset);
969 if (It != OffsetMap.end())971 if (It != OffsetMap.end())
970 return It->second;972 return Pieces[It->second].OutputOff;
971
972 if (!this->Live)
973 return 0;
974973
975 // If Offset is not at beginning of a section piece, it is not in the map.974 // If Offset is not at beginning of a section piece, it is not in the map.
976 // In that case we need to search from the original section piece vector.975 // In that case we need to search from the original section piece vector.
977 const SectionPiece &Piece = *this->getSectionPiece(Offset);976 const SectionPiece &Piece = *getSectionPiece(Offset);
978 if (!Piece.Live)977 if (!Piece.Live)
979 return 0;978 return 0;
980979
...@@ -982,57 +981,42 @@ uint64_t MergeInputSection::getOffset(uint64_t Offset) const {...@@ -982,57 +981,42 @@ uint64_t MergeInputSection::getOffset(uint64_t Offset) const {
982 return Piece.OutputOff + Addend;981 return Piece.OutputOff + Addend;
983}982}
984983
985template InputSection::InputSection(elf::ObjectFile<ELF32LE> *,984template InputSection::InputSection(ObjFile<ELF32LE> &, const ELF32LE::Shdr &,
986 const ELF32LE::Shdr *, StringRef);985 StringRef);
987template InputSection::InputSection(elf::ObjectFile<ELF32BE> *,986template InputSection::InputSection(ObjFile<ELF32BE> &, const ELF32BE::Shdr &,
988 const ELF32BE::Shdr *, StringRef);987 StringRef);
989template InputSection::InputSection(elf::ObjectFile<ELF64LE> *,988template InputSection::InputSection(ObjFile<ELF64LE> &, const ELF64LE::Shdr &,
990 const ELF64LE::Shdr *, StringRef);989 StringRef);
991template InputSection::InputSection(elf::ObjectFile<ELF64BE> *,990template InputSection::InputSection(ObjFile<ELF64BE> &, const ELF64BE::Shdr &,
992 const ELF64BE::Shdr *, StringRef);991 StringRef);
993992
994template std::string InputSectionBase::getLocation<ELF32LE>(uint64_t);993template std::string InputSectionBase::getLocation<ELF32LE>(uint64_t);
995template std::string InputSectionBase::getLocation<ELF32BE>(uint64_t);994template std::string InputSectionBase::getLocation<ELF32BE>(uint64_t);
996template std::string InputSectionBase::getLocation<ELF64LE>(uint64_t);995template std::string InputSectionBase::getLocation<ELF64LE>(uint64_t);
997template std::string InputSectionBase::getLocation<ELF64BE>(uint64_t);996template std::string InputSectionBase::getLocation<ELF64BE>(uint64_t);
998997
999template std::string InputSectionBase::getSrcMsg<ELF32LE>(uint64_t);
1000template std::string InputSectionBase::getSrcMsg<ELF32BE>(uint64_t);
1001template std::string InputSectionBase::getSrcMsg<ELF64LE>(uint64_t);
1002template std::string InputSectionBase::getSrcMsg<ELF64BE>(uint64_t);
1003
1004template std::string InputSectionBase::getObjMsg<ELF32LE>(uint64_t);
1005template std::string InputSectionBase::getObjMsg<ELF32BE>(uint64_t);
1006template std::string InputSectionBase::getObjMsg<ELF64LE>(uint64_t);
1007template std::string InputSectionBase::getObjMsg<ELF64BE>(uint64_t);
1008
1009template void InputSection::writeTo<ELF32LE>(uint8_t *);998template void InputSection::writeTo<ELF32LE>(uint8_t *);
1010template void InputSection::writeTo<ELF32BE>(uint8_t *);999template void InputSection::writeTo<ELF32BE>(uint8_t *);
1011template void InputSection::writeTo<ELF64LE>(uint8_t *);1000template void InputSection::writeTo<ELF64LE>(uint8_t *);
1012template void InputSection::writeTo<ELF64BE>(uint8_t *);1001template void InputSection::writeTo<ELF64BE>(uint8_t *);
10131002
1014template elf::ObjectFile<ELF32LE> *InputSectionBase::getFile<ELF32LE>() const;1003template MergeInputSection::MergeInputSection(ObjFile<ELF32LE> &,
1015template elf::ObjectFile<ELF32BE> *InputSectionBase::getFile<ELF32BE>() const;1004 const ELF32LE::Shdr &, StringRef);
1016template elf::ObjectFile<ELF64LE> *InputSectionBase::getFile<ELF64LE>() const;1005template MergeInputSection::MergeInputSection(ObjFile<ELF32BE> &,
1017template elf::ObjectFile<ELF64BE> *InputSectionBase::getFile<ELF64BE>() const;1006 const ELF32BE::Shdr &, StringRef);
10181007template MergeInputSection::MergeInputSection(ObjFile<ELF64LE> &,
1019template MergeInputSection::MergeInputSection(elf::ObjectFile<ELF32LE> *,1008 const ELF64LE::Shdr &, StringRef);
1020 const ELF32LE::Shdr *, StringRef);1009template MergeInputSection::MergeInputSection(ObjFile<ELF64BE> &,
1021template MergeInputSection::MergeInputSection(elf::ObjectFile<ELF32BE> *,1010 const ELF64BE::Shdr &, StringRef);
1022 const ELF32BE::Shdr *, StringRef);1011
1023template MergeInputSection::MergeInputSection(elf::ObjectFile<ELF64LE> *,1012template EhInputSection::EhInputSection(ObjFile<ELF32LE> &,
1024 const ELF64LE::Shdr *, StringRef);1013 const ELF32LE::Shdr &, StringRef);
1025template MergeInputSection::MergeInputSection(elf::ObjectFile<ELF64BE> *,1014template EhInputSection::EhInputSection(ObjFile<ELF32BE> &,
1026 const ELF64BE::Shdr *, StringRef);1015 const ELF32BE::Shdr &, StringRef);
10271016template EhInputSection::EhInputSection(ObjFile<ELF64LE> &,
1028template EhInputSection::EhInputSection(elf::ObjectFile<ELF32LE> *,1017 const ELF64LE::Shdr &, StringRef);
1029 const ELF32LE::Shdr *, StringRef);1018template EhInputSection::EhInputSection(ObjFile<ELF64BE> &,
1030template EhInputSection::EhInputSection(elf::ObjectFile<ELF32BE> *,1019 const ELF64BE::Shdr &, StringRef);
1031 const ELF32BE::Shdr *, StringRef);
1032template EhInputSection::EhInputSection(elf::ObjectFile<ELF64LE> *,
1033 const ELF64LE::Shdr *, StringRef);
1034template EhInputSection::EhInputSection(elf::ObjectFile<ELF64BE> *,
1035 const ELF64BE::Shdr *, StringRef);
10361020
1037template void EhInputSection::split<ELF32LE>();1021template void EhInputSection::split<ELF32LE>();
1038template void EhInputSection::split<ELF32BE>();1022template void EhInputSection::split<ELF32BE>();
deps/lld/ELF/InputSection.h+109-94
...@@ -13,7 +13,7 @@...@@ -13,7 +13,7 @@
13#include "Config.h"13#include "Config.h"
14#include "Relocations.h"14#include "Relocations.h"
15#include "Thunks.h"15#include "Thunks.h"
16#include "lld/Core/LLVM.h"16#include "lld/Common/LLVM.h"
17#include "llvm/ADT/CachedHashString.h"17#include "llvm/ADT/CachedHashString.h"
18#include "llvm/ADT/DenseSet.h"18#include "llvm/ADT/DenseSet.h"
19#include "llvm/ADT/TinyPtrVector.h"19#include "llvm/ADT/TinyPtrVector.h"
...@@ -24,15 +24,13 @@...@@ -24,15 +24,13 @@
24namespace lld {24namespace lld {
25namespace elf {25namespace elf {
2626
27class DefinedCommon;27class Symbol;
28class SymbolBody;
29struct SectionPiece;28struct SectionPiece;
3029
31class DefinedRegular;30class Defined;
32class SyntheticSection;31class SyntheticSection;
33template <class ELFT> class EhFrameSection;
34class MergeSyntheticSection;32class MergeSyntheticSection;
35template <class ELFT> class ObjectFile;33template <class ELFT> class ObjFile;
36class OutputSection;34class OutputSection;
3735
38// This is the base class of all sections that lld handles. Some are sections in36// This is the base class of all sections that lld handles. Some are sections in
...@@ -47,6 +45,13 @@ public:...@@ -47,6 +45,13 @@ public:
4745
48 StringRef Name;46 StringRef Name;
4947
48 // This pointer points to the "real" instance of this instance.
49 // Usually Repl == this. However, if ICF merges two sections,
50 // Repl pointer of one section points to another section. So,
51 // if you need to get a pointer to this instance, do not use
52 // this but instead this->Repl.
53 SectionBase *Repl;
54
50 unsigned SectionKind : 3;55 unsigned SectionKind : 3;
5156
52 // The next two bit fields are only used by InputSectionBase, but we57 // The next two bit fields are only used by InputSectionBase, but we
...@@ -54,12 +59,12 @@ public:...@@ -54,12 +59,12 @@ public:
5459
55 // The garbage collector sets sections' Live bits.60 // The garbage collector sets sections' Live bits.
56 // If GC is disabled, all sections are considered live by default.61 // If GC is disabled, all sections are considered live by default.
57 unsigned Live : 1; // for garbage collection62 unsigned Live : 1;
58 unsigned Assigned : 1; // for linker script
5963
60 uint32_t Alignment;64 unsigned Bss : 1;
6165
62 // These corresponds to the fields in Elf_Shdr.66 // These corresponds to the fields in Elf_Shdr.
67 uint32_t Alignment;
63 uint64_t Flags;68 uint64_t Flags;
64 uint64_t Entsize;69 uint64_t Entsize;
65 uint32_t Type;70 uint32_t Type;
...@@ -75,45 +80,20 @@ public:...@@ -75,45 +80,20 @@ public:
75 // section.80 // section.
76 uint64_t getOffset(uint64_t Offset) const;81 uint64_t getOffset(uint64_t Offset) const;
7782
78 uint64_t getOffset(const DefinedRegular &Sym) const;
79
80protected:83protected:
81 SectionBase(Kind SectionKind, StringRef Name, uint64_t Flags,84 SectionBase(Kind SectionKind, StringRef Name, uint64_t Flags,
82 uint64_t Entsize, uint64_t Alignment, uint32_t Type,85 uint64_t Entsize, uint64_t Alignment, uint32_t Type,
83 uint32_t Info, uint32_t Link)86 uint32_t Info, uint32_t Link)
84 : Name(Name), SectionKind(SectionKind), Alignment(Alignment),87 : Name(Name), Repl(this), SectionKind(SectionKind), Live(false),
85 Flags(Flags), Entsize(Entsize), Type(Type), Link(Link), Info(Info) {88 Bss(false), Alignment(Alignment), Flags(Flags), Entsize(Entsize),
86 Live = false;89 Type(Type), Link(Link), Info(Info) {}
87 Assigned = false;
88 }
89};90};
9091
91// This corresponds to a section of an input file.92// This corresponds to a section of an input file.
92class InputSectionBase : public SectionBase {93class InputSectionBase : public SectionBase {
93public:94public:
94 static bool classof(const SectionBase *S);
95
96 // The file this section is from.
97 InputFile *File;
98
99 ArrayRef<uint8_t> Data;
100 uint64_t getOffsetInFile() const;
101
102 static InputSectionBase Discarded;
103
104 InputSectionBase()
105 : SectionBase(Regular, "", /*Flags*/ 0, /*Entsize*/ 0, /*Alignment*/ 0,
106 /*Type*/ 0,
107 /*Info*/ 0, /*Link*/ 0),
108 Repl(this) {
109 Live = false;
110 Assigned = false;
111 NumRelocations = 0;
112 AreRelocsRela = false;
113 }
114
115 template <class ELFT>95 template <class ELFT>
116 InputSectionBase(ObjectFile<ELFT> *File, const typename ELFT::Shdr *Header,96 InputSectionBase(ObjFile<ELFT> &File, const typename ELFT::Shdr &Header,
117 StringRef Name, Kind SectionKind);97 StringRef Name, Kind SectionKind);
11898
119 InputSectionBase(InputFile *File, uint64_t Flags, uint32_t Type,99 InputSectionBase(InputFile *File, uint64_t Flags, uint32_t Type,
...@@ -121,6 +101,33 @@ public:...@@ -121,6 +101,33 @@ public:
121 uint32_t Alignment, ArrayRef<uint8_t> Data, StringRef Name,101 uint32_t Alignment, ArrayRef<uint8_t> Data, StringRef Name,
122 Kind SectionKind);102 Kind SectionKind);
123103
104 static bool classof(const SectionBase *S) { return S->kind() != Output; }
105
106 // The file which contains this section. It's dynamic type is always
107 // ObjFile<ELFT>, but in order to avoid ELFT, we use InputFile as
108 // its static type.
109 InputFile *File;
110
111 template <class ELFT> ObjFile<ELFT> *getFile() const {
112 return cast_or_null<ObjFile<ELFT>>(File);
113 }
114
115 ArrayRef<uint8_t> Data;
116 uint64_t getOffsetInFile() const;
117
118 // True if this section has already been placed to a linker script
119 // output section. This is needed because, in a linker script, you
120 // can refer to the same section more than once. For example, in
121 // the following linker script,
122 //
123 // .foo : { *(.text) }
124 // .bar : { *(.text) }
125 //
126 // .foo takes all .text sections, and .bar becomes empty. To achieve
127 // this, we need to memorize whether a section has been placed or
128 // not for each input section.
129 bool Assigned = false;
130
124 // Input sections are part of an output section. Special sections131 // Input sections are part of an output section. Special sections
125 // like .eh_frame and merge sections are first combined into a132 // like .eh_frame and merge sections are first combined into a
126 // synthetic section that is then added to an output section. In all133 // synthetic section that is then added to an output section. In all
...@@ -131,12 +138,14 @@ public:...@@ -131,12 +138,14 @@ public:
131 const void *FirstRelocation = nullptr;138 const void *FirstRelocation = nullptr;
132 unsigned NumRelocations : 31;139 unsigned NumRelocations : 31;
133 unsigned AreRelocsRela : 1;140 unsigned AreRelocsRela : 1;
141
134 template <class ELFT> ArrayRef<typename ELFT::Rel> rels() const {142 template <class ELFT> ArrayRef<typename ELFT::Rel> rels() const {
135 assert(!AreRelocsRela);143 assert(!AreRelocsRela);
136 return llvm::makeArrayRef(144 return llvm::makeArrayRef(
137 static_cast<const typename ELFT::Rel *>(FirstRelocation),145 static_cast<const typename ELFT::Rel *>(FirstRelocation),
138 NumRelocations);146 NumRelocations);
139 }147 }
148
140 template <class ELFT> ArrayRef<typename ELFT::Rela> relas() const {149 template <class ELFT> ArrayRef<typename ELFT::Rela> relas() const {
141 assert(AreRelocsRela);150 assert(AreRelocsRela);
142 return llvm::makeArrayRef(151 return llvm::makeArrayRef(
...@@ -144,38 +153,33 @@ public:...@@ -144,38 +153,33 @@ public:
144 NumRelocations);153 NumRelocations);
145 }154 }
146155
147 // This pointer points to the "real" instance of this instance.
148 // Usually Repl == this. However, if ICF merges two sections,
149 // Repl pointer of one section points to another section. So,
150 // if you need to get a pointer to this instance, do not use
151 // this but instead this->Repl.
152 InputSectionBase *Repl;
153
154 // InputSections that are dependent on us (reverse dependency for GC)156 // InputSections that are dependent on us (reverse dependency for GC)
155 llvm::TinyPtrVector<InputSectionBase *> DependentSections;157 llvm::TinyPtrVector<InputSection *> DependentSections;
156158
157 // Returns the size of this section (even if this is a common or BSS.)159 // Returns the size of this section (even if this is a common or BSS.)
158 size_t getSize() const;160 size_t getSize() const;
159161
160 template <class ELFT> ObjectFile<ELFT> *getFile() const;
161
162 template <class ELFT> llvm::object::ELFFile<ELFT> getObj() const {
163 return getFile<ELFT>()->getObj();
164 }
165
166 InputSection *getLinkOrderDep() const;162 InputSection *getLinkOrderDep() const;
167163
168 void uncompress();164 // Compilers emit zlib-compressed debug sections if the -gz option
165 // is given. This function checks if this section is compressed, and
166 // if so, decompress in memory.
167 void maybeUncompress();
169168
170 // Returns a source location string. Used to construct an error message.169 // Returns a source location string. Used to construct an error message.
171 template <class ELFT> std::string getLocation(uint64_t Offset);170 template <class ELFT> std::string getLocation(uint64_t Offset);
172 template <class ELFT> std::string getSrcMsg(uint64_t Offset);171 std::string getSrcMsg(const Symbol &Sym, uint64_t Offset);
173 template <class ELFT> std::string getObjMsg(uint64_t Offset);172 std::string getObjMsg(uint64_t Offset);
174173
174 // Each section knows how to relocate itself. These functions apply
175 // relocations, assuming that Buf points to this section's copy in
176 // the mmap'ed output buffer.
175 template <class ELFT> void relocate(uint8_t *Buf, uint8_t *BufEnd);177 template <class ELFT> void relocate(uint8_t *Buf, uint8_t *BufEnd);
176 void relocateAlloc(uint8_t *Buf, uint8_t *BufEnd);178 void relocateAlloc(uint8_t *Buf, uint8_t *BufEnd);
177 template <class ELFT> void relocateNonAlloc(uint8_t *Buf, uint8_t *BufEnd);
178179
180 // The native ELF reloc data type is not very convenient to handle.
181 // So we convert ELF reloc records to our own records in Relocations.cpp.
182 // This vector contains such "cooked" relocations.
179 std::vector<Relocation> Relocations;183 std::vector<Relocation> Relocations;
180184
181 template <typename T> llvm::ArrayRef<T> getDataAs() const {185 template <typename T> llvm::ArrayRef<T> getDataAs() const {
...@@ -183,36 +187,46 @@ public:...@@ -183,36 +187,46 @@ public:
183 assert(S % sizeof(T) == 0);187 assert(S % sizeof(T) == 0);
184 return llvm::makeArrayRef<T>((const T *)Data.data(), S / sizeof(T));188 return llvm::makeArrayRef<T>((const T *)Data.data(), S / sizeof(T));
185 }189 }
190
191private:
192 // A pointer that owns uncompressed data if a section is compressed by zlib.
193 // Since the feature is not used often, this is usually a nullptr.
194 std::unique_ptr<char[]> UncompressBuf;
186};195};
187196
188// SectionPiece represents a piece of splittable section contents.197// SectionPiece represents a piece of splittable section contents.
189// We allocate a lot of these and binary search on them. This means that they198// We allocate a lot of these and binary search on them. This means that they
190// have to be as compact as possible, which is why we don't store the size (can199// have to be as compact as possible, which is why we don't store the size (can
191// be found by looking at the next one) and put the hash in a side table.200// be found by looking at the next one).
192struct SectionPiece {201struct SectionPiece {
193 SectionPiece(size_t Off, bool Live = false)202 SectionPiece(size_t Off, uint32_t Hash, bool Live)
194 : InputOff(Off), OutputOff(-1), Live(Live || !Config->GcSections) {}203 : InputOff(Off), Hash(Hash), OutputOff(-1),
195204 Live(Live || !Config->GcSections) {}
196 size_t InputOff;205
197 ssize_t OutputOff : 8 * sizeof(ssize_t) - 1;206 uint32_t InputOff;
198 size_t Live : 1;207 uint32_t Hash;
208 int64_t OutputOff : 63;
209 uint64_t Live : 1;
199};210};
200static_assert(sizeof(SectionPiece) == 2 * sizeof(size_t),211
201 "SectionPiece is too big");212static_assert(sizeof(SectionPiece) == 16, "SectionPiece is too big");
202213
203// This corresponds to a SHF_MERGE section of an input file.214// This corresponds to a SHF_MERGE section of an input file.
204class MergeInputSection : public InputSectionBase {215class MergeInputSection : public InputSectionBase {
205public:216public:
206 template <class ELFT>217 template <class ELFT>
207 MergeInputSection(ObjectFile<ELFT> *F, const typename ELFT::Shdr *Header,218 MergeInputSection(ObjFile<ELFT> &F, const typename ELFT::Shdr &Header,
208 StringRef Name);219 StringRef Name);
209 static bool classof(const SectionBase *S);220 MergeInputSection(uint64_t Flags, uint32_t Type, uint64_t Entsize,
221 ArrayRef<uint8_t> Data, StringRef Name);
222
223 static bool classof(const SectionBase *S) { return S->kind() == Merge; }
210 void splitIntoPieces();224 void splitIntoPieces();
211225
212 // Mark the piece at a given offset live. Used by GC.226 // Mark the piece at a given offset live. Used by GC.
213 void markLiveAt(uint64_t Offset) {227 void markLiveAt(uint64_t Offset) {
214 assert(this->Flags & llvm::ELF::SHF_ALLOC);228 if (this->Flags & llvm::ELF::SHF_ALLOC)
215 LiveOffsets.insert(Offset);229 LiveOffsets.insert(Offset);
216 }230 }
217231
218 // Translate an offset in the input section to an offset232 // Translate an offset in the input section to an offset
...@@ -228,14 +242,9 @@ public:...@@ -228,14 +242,9 @@ public:
228 LLVM_ATTRIBUTE_ALWAYS_INLINE242 LLVM_ATTRIBUTE_ALWAYS_INLINE
229 llvm::CachedHashStringRef getData(size_t I) const {243 llvm::CachedHashStringRef getData(size_t I) const {
230 size_t Begin = Pieces[I].InputOff;244 size_t Begin = Pieces[I].InputOff;
231 size_t End;245 size_t End =
232 if (Pieces.size() - 1 == I)246 (Pieces.size() - 1 == I) ? Data.size() : Pieces[I + 1].InputOff;
233 End = this->Data.size();247 return {toStringRef(Data.slice(Begin, End - Begin)), Pieces[I].Hash};
234 else
235 End = Pieces[I + 1].InputOff;
236
237 StringRef S = {(const char *)(this->Data.data() + Begin), End - Begin};
238 return {S, Hashes[I]};
239 }248 }
240249
241 // Returns the SectionPiece at a given input section offset.250 // Returns the SectionPiece at a given input section offset.
...@@ -248,24 +257,23 @@ private:...@@ -248,24 +257,23 @@ private:
248 void splitStrings(ArrayRef<uint8_t> A, size_t Size);257 void splitStrings(ArrayRef<uint8_t> A, size_t Size);
249 void splitNonStrings(ArrayRef<uint8_t> A, size_t Size);258 void splitNonStrings(ArrayRef<uint8_t> A, size_t Size);
250259
251 std::vector<uint32_t> Hashes;260 mutable llvm::DenseMap<uint32_t, uint32_t> OffsetMap;
252
253 mutable llvm::DenseMap<uint64_t, uint64_t> OffsetMap;
254 mutable llvm::once_flag InitOffsetMap;261 mutable llvm::once_flag InitOffsetMap;
255262
256 llvm::DenseSet<uint64_t> LiveOffsets;263 llvm::DenseSet<uint64_t> LiveOffsets;
257};264};
258265
259struct EhSectionPiece : public SectionPiece {266struct EhSectionPiece {
260 EhSectionPiece(size_t Off, InputSectionBase *ID, uint32_t Size,267 EhSectionPiece(size_t Off, InputSectionBase *Sec, uint32_t Size,
261 unsigned FirstRelocation)268 unsigned FirstRelocation)
262 : SectionPiece(Off, false), ID(ID), Size(Size),269 : InputOff(Off), Sec(Sec), Size(Size), FirstRelocation(FirstRelocation) {}
263 FirstRelocation(FirstRelocation) {}
264 InputSectionBase *ID;
265 uint32_t Size;
266 uint32_t size() const { return Size; }
267270
268 ArrayRef<uint8_t> data() { return {ID->Data.data() + this->InputOff, Size}; }271 ArrayRef<uint8_t> data() { return {Sec->Data.data() + this->InputOff, Size}; }
272
273 size_t InputOff;
274 ssize_t OutputOff = -1;
275 InputSectionBase *Sec;
276 uint32_t Size;
269 unsigned FirstRelocation;277 unsigned FirstRelocation;
270};278};
271279
...@@ -273,9 +281,9 @@ struct EhSectionPiece : public SectionPiece {...@@ -273,9 +281,9 @@ struct EhSectionPiece : public SectionPiece {
273class EhInputSection : public InputSectionBase {281class EhInputSection : public InputSectionBase {
274public:282public:
275 template <class ELFT>283 template <class ELFT>
276 EhInputSection(ObjectFile<ELFT> *F, const typename ELFT::Shdr *Header,284 EhInputSection(ObjFile<ELFT> &F, const typename ELFT::Shdr &Header,
277 StringRef Name);285 StringRef Name);
278 static bool classof(const SectionBase *S);286 static bool classof(const SectionBase *S) { return S->kind() == EHFrame; }
279 template <class ELFT> void split();287 template <class ELFT> void split();
280 template <class ELFT, class RelTy> void split(ArrayRef<RelTy> Rels);288 template <class ELFT, class RelTy> void split(ArrayRef<RelTy> Rels);
281289
...@@ -292,10 +300,10 @@ public:...@@ -292,10 +300,10 @@ public:
292// .eh_frame. It also includes the synthetic sections themselves.300// .eh_frame. It also includes the synthetic sections themselves.
293class InputSection : public InputSectionBase {301class InputSection : public InputSectionBase {
294public:302public:
295 InputSection(uint64_t Flags, uint32_t Type, uint32_t Alignment,303 InputSection(InputFile *F, uint64_t Flags, uint32_t Type, uint32_t Alignment,
296 ArrayRef<uint8_t> Data, StringRef Name, Kind K = Regular);304 ArrayRef<uint8_t> Data, StringRef Name, Kind K = Regular);
297 template <class ELFT>305 template <class ELFT>
298 InputSection(ObjectFile<ELFT> *F, const typename ELFT::Shdr *Header,306 InputSection(ObjFile<ELFT> &F, const typename ELFT::Shdr &Header,
299 StringRef Name);307 StringRef Name);
300308
301 // Write this section to a mmap'ed file, assuming Buf is pointing to309 // Write this section to a mmap'ed file, assuming Buf is pointing to
...@@ -304,8 +312,10 @@ public:...@@ -304,8 +312,10 @@ public:
304312
305 OutputSection *getParent() const;313 OutputSection *getParent() const;
306314
307 // The offset from beginning of the output sections this section was assigned315 // This variable has two usages. Initially, it represents an index in the
308 // to. The writer sets a value.316 // OutputSection's InputSection list, and is used when ordering SHF_LINK_ORDER
317 // sections. After assignAddresses is called, it represents the offset from
318 // the beginning of the output section this section was assigned to.
309 uint64_t OutSecOff = 0;319 uint64_t OutSecOff = 0;
310320
311 static bool classof(const SectionBase *S);321 static bool classof(const SectionBase *S);
...@@ -321,6 +331,8 @@ public:...@@ -321,6 +331,8 @@ public:
321 // Called by ICF to merge two input sections.331 // Called by ICF to merge two input sections.
322 void replace(InputSection *Other);332 void replace(InputSection *Other);
323333
334 static InputSection Discarded;
335
324private:336private:
325 template <class ELFT, class RelTy>337 template <class ELFT, class RelTy>
326 void copyRelocations(uint8_t *Buf, llvm::ArrayRef<RelTy> Rels);338 void copyRelocations(uint8_t *Buf, llvm::ArrayRef<RelTy> Rels);
...@@ -331,6 +343,9 @@ private:...@@ -331,6 +343,9 @@ private:
331// The list of all input sections.343// The list of all input sections.
332extern std::vector<InputSectionBase *> InputSections;344extern std::vector<InputSectionBase *> InputSections;
333345
346// Builds section order for handling --symbol-ordering-file.
347llvm::DenseMap<SectionBase *, int> buildSectionOrder();
348
334} // namespace elf349} // namespace elf
335350
336std::string toString(const elf::InputSectionBase *);351std::string toString(const elf::InputSectionBase *);
deps/lld/ELF/LTO.cpp+45-18
...@@ -9,10 +9,12 @@...@@ -9,10 +9,12 @@
99
10#include "LTO.h"10#include "LTO.h"
11#include "Config.h"11#include "Config.h"
12#include "Error.h"
13#include "InputFiles.h"12#include "InputFiles.h"
13#include "LinkerScript.h"
14#include "SymbolTable.h"
14#include "Symbols.h"15#include "Symbols.h"
15#include "lld/Core/TargetOptionsCommandFlags.h"16#include "lld/Common/ErrorHandler.h"
17#include "lld/Common/TargetOptionsCommandFlags.h"
16#include "llvm/ADT/STLExtras.h"18#include "llvm/ADT/STLExtras.h"
17#include "llvm/ADT/SmallString.h"19#include "llvm/ADT/SmallString.h"
18#include "llvm/ADT/StringRef.h"20#include "llvm/ADT/StringRef.h"
...@@ -60,10 +62,8 @@ static void diagnosticHandler(const DiagnosticInfo &DI) {...@@ -60,10 +62,8 @@ static void diagnosticHandler(const DiagnosticInfo &DI) {
60}62}
6163
62static void checkError(Error E) {64static void checkError(Error E) {
63 handleAllErrors(std::move(E), [&](ErrorInfoBase &EIB) -> Error {65 handleAllErrors(std::move(E),
64 error(EIB.message());66 [&](ErrorInfoBase &EIB) { error(EIB.message()); });
65 return Error::success();
66 });
67}67}
6868
69static std::unique_ptr<lto::LTO> createLTO() {69static std::unique_ptr<lto::LTO> createLTO() {
...@@ -73,6 +73,10 @@ static std::unique_ptr<lto::LTO> createLTO() {...@@ -73,6 +73,10 @@ static std::unique_ptr<lto::LTO> createLTO() {
73 Conf.Options = InitTargetOptionsFromCodeGenFlags();73 Conf.Options = InitTargetOptionsFromCodeGenFlags();
74 Conf.Options.RelaxELFRelocations = true;74 Conf.Options.RelaxELFRelocations = true;
7575
76 // Always emit a section per function/datum with LTO.
77 Conf.Options.FunctionSections = true;
78 Conf.Options.DataSections = true;
79
76 if (Config->Relocatable)80 if (Config->Relocatable)
77 Conf.RelocModel = None;81 Conf.RelocModel = None;
78 else if (Config->Pic)82 else if (Config->Pic)
...@@ -103,13 +107,20 @@ static std::unique_ptr<lto::LTO> createLTO() {...@@ -103,13 +107,20 @@ static std::unique_ptr<lto::LTO> createLTO() {
103 Config->LTOPartitions);107 Config->LTOPartitions);
104}108}
105109
106BitcodeCompiler::BitcodeCompiler() : LTOObj(createLTO()) {}110BitcodeCompiler::BitcodeCompiler() : LTOObj(createLTO()) {
111 for (Symbol *Sym : Symtab->getSymbols()) {
112 StringRef Name = Sym->getName();
113 for (StringRef Prefix : {"__start_", "__stop_"})
114 if (Name.startswith(Prefix))
115 UsedStartStop.insert(Name.substr(Prefix.size()));
116 }
117}
107118
108BitcodeCompiler::~BitcodeCompiler() = default;119BitcodeCompiler::~BitcodeCompiler() = default;
109120
110static void undefine(Symbol *S) {121static void undefine(Symbol *S) {
111 replaceBody<Undefined>(S, S->body()->getName(), /*IsLocal=*/false,122 replaceSymbol<Undefined>(S, nullptr, S->getName(), STB_GLOBAL, STV_DEFAULT,
112 STV_DEFAULT, S->body()->Type, nullptr);123 S->Type);
113}124}
114125
115void BitcodeCompiler::add(BitcodeFile &F) {126void BitcodeCompiler::add(BitcodeFile &F) {
...@@ -118,25 +129,42 @@ void BitcodeCompiler::add(BitcodeFile &F) {...@@ -118,25 +129,42 @@ void BitcodeCompiler::add(BitcodeFile &F) {
118 std::vector<Symbol *> Syms = F.getSymbols();129 std::vector<Symbol *> Syms = F.getSymbols();
119 std::vector<lto::SymbolResolution> Resols(Syms.size());130 std::vector<lto::SymbolResolution> Resols(Syms.size());
120131
132 DenseSet<StringRef> ScriptSymbols;
133 for (BaseCommand *Base : Script->SectionCommands)
134 if (auto *Cmd = dyn_cast<SymbolAssignment>(Base))
135 ScriptSymbols.insert(Cmd->Name);
136
121 // Provide a resolution to the LTO API for each symbol.137 // Provide a resolution to the LTO API for each symbol.
122 for (const lto::InputFile::Symbol &ObjSym : Obj.symbols()) {138 for (const lto::InputFile::Symbol &ObjSym : Obj.symbols()) {
123 Symbol *Sym = Syms[SymNum];139 Symbol *Sym = Syms[SymNum];
124 lto::SymbolResolution &R = Resols[SymNum];140 lto::SymbolResolution &R = Resols[SymNum];
125 ++SymNum;141 ++SymNum;
126 SymbolBody *B = Sym->body();
127142
128 // Ideally we shouldn't check for SF_Undefined but currently IRObjectFile143 // Ideally we shouldn't check for SF_Undefined but currently IRObjectFile
129 // reports two symbols for module ASM defined. Without this check, lld144 // reports two symbols for module ASM defined. Without this check, lld
130 // flags an undefined in IR with a definition in ASM as prevailing.145 // flags an undefined in IR with a definition in ASM as prevailing.
131 // Once IRObjectFile is fixed to report only one symbol this hack can146 // Once IRObjectFile is fixed to report only one symbol this hack can
132 // be removed.147 // be removed.
133 R.Prevailing = !ObjSym.isUndefined() && B->File == &F;148 R.Prevailing = !ObjSym.isUndefined() && Sym->File == &F;
134149
135 R.VisibleToRegularObj =150 // We ask LTO to preserve following global symbols:
136 Sym->IsUsedInRegularObj || (R.Prevailing && Sym->includeInDynsym());151 // 1) All symbols when doing relocatable link, so that them can be used
152 // for doing final link.
153 // 2) Symbols that are used in regular objects.
154 // 3) C named sections if we have corresponding __start_/__stop_ symbol.
155 // 4) Symbols that are defined in bitcode files and used for dynamic linking.
156 R.VisibleToRegularObj = Config->Relocatable || Sym->IsUsedInRegularObj ||
157 (R.Prevailing && Sym->includeInDynsym()) ||
158 UsedStartStop.count(ObjSym.getSectionName());
137 if (R.Prevailing)159 if (R.Prevailing)
138 undefine(Sym);160 undefine(Sym);
139 R.LinkerRedefined = Config->RenamedSymbols.count(Sym);161
162 // We tell LTO to not apply interprocedural optimization for following
163 // symbols because otherwise LTO would inline them while their values are
164 // still not final:
165 // 1) Aliased (with --defsym) or wrapped (with --wrap) symbols.
166 // 2) Symbols redefined in linker script.
167 R.LinkerRedefined = !Sym->CanInline || ScriptSymbols.count(Sym->getName());
140 }168 }
141 checkError(LTOObj->add(std::move(F.Obj), Resols));169 checkError(LTOObj->add(std::move(F.Obj), Resols));
142}170}
...@@ -156,9 +184,8 @@ std::vector<InputFile *> BitcodeCompiler::compile() {...@@ -156,9 +184,8 @@ std::vector<InputFile *> BitcodeCompiler::compile() {
156 if (!Config->ThinLTOCacheDir.empty())184 if (!Config->ThinLTOCacheDir.empty())
157 Cache = check(185 Cache = check(
158 lto::localCache(Config->ThinLTOCacheDir,186 lto::localCache(Config->ThinLTOCacheDir,
159 [&](size_t Task, std::unique_ptr<MemoryBuffer> MB) {187 [&](size_t Task, std::unique_ptr<MemoryBuffer> MB,
160 Files[Task] = std::move(MB);188 StringRef Path) { Files[Task] = std::move(MB); }));
161 }));
162189
163 checkError(LTOObj->run(190 checkError(LTOObj->run(
164 [&](size_t Task) {191 [&](size_t Task) {
deps/lld/ELF/LTO.h+3-1
...@@ -21,7 +21,8 @@...@@ -21,7 +21,8 @@
21#ifndef LLD_ELF_LTO_H21#ifndef LLD_ELF_LTO_H
22#define LLD_ELF_LTO_H22#define LLD_ELF_LTO_H
2323
24#include "lld/Core/LLVM.h"24#include "lld/Common/LLVM.h"
25#include "llvm/ADT/DenseSet.h"
25#include "llvm/ADT/SmallString.h"26#include "llvm/ADT/SmallString.h"
26#include <memory>27#include <memory>
27#include <vector>28#include <vector>
...@@ -50,6 +51,7 @@ private:...@@ -50,6 +51,7 @@ private:
50 std::unique_ptr<llvm::lto::LTO> LTOObj;51 std::unique_ptr<llvm::lto::LTO> LTOObj;
51 std::vector<SmallString<0>> Buff;52 std::vector<SmallString<0>> Buff;
52 std::vector<std::unique_ptr<MemoryBuffer>> Files;53 std::vector<std::unique_ptr<MemoryBuffer>> Files;
54 llvm::DenseSet<StringRef> UsedStartStop;
53};55};
54} // namespace elf56} // namespace elf
55} // namespace lld57} // namespace lld
deps/lld/ELF/LinkerScript.cpp+573-811
...@@ -14,20 +14,19 @@...@@ -14,20 +14,19 @@
14#include "LinkerScript.h"14#include "LinkerScript.h"
15#include "Config.h"15#include "Config.h"
16#include "InputSection.h"16#include "InputSection.h"
17#include "Memory.h"
18#include "OutputSections.h"17#include "OutputSections.h"
19#include "Strings.h"18#include "Strings.h"
20#include "SymbolTable.h"19#include "SymbolTable.h"
21#include "Symbols.h"20#include "Symbols.h"
22#include "SyntheticSections.h"21#include "SyntheticSections.h"
23#include "Target.h"22#include "Target.h"
24#include "Threads.h"
25#include "Writer.h"23#include "Writer.h"
24#include "lld/Common/Memory.h"
25#include "lld/Common/Threads.h"
26#include "llvm/ADT/STLExtras.h"26#include "llvm/ADT/STLExtras.h"
27#include "llvm/ADT/StringRef.h"27#include "llvm/ADT/StringRef.h"
28#include "llvm/BinaryFormat/ELF.h"28#include "llvm/BinaryFormat/ELF.h"
29#include "llvm/Support/Casting.h"29#include "llvm/Support/Casting.h"
30#include "llvm/Support/Compression.h"
31#include "llvm/Support/Endian.h"30#include "llvm/Support/Endian.h"
32#include "llvm/Support/ErrorHandling.h"31#include "llvm/Support/ErrorHandling.h"
33#include "llvm/Support/FileSystem.h"32#include "llvm/Support/FileSystem.h"
...@@ -50,62 +49,56 @@ using namespace lld::elf;...@@ -50,62 +49,56 @@ using namespace lld::elf;
5049
51LinkerScript *elf::Script;50LinkerScript *elf::Script;
5251
52static uint64_t getOutputSectionVA(SectionBase *InputSec, StringRef Loc) {
53 if (OutputSection *OS = InputSec->getOutputSection())
54 return OS->Addr;
55 error(Loc + ": unable to evaluate expression: input section " +
56 InputSec->Name + " has no output section assigned");
57 return 0;
58}
59
53uint64_t ExprValue::getValue() const {60uint64_t ExprValue::getValue() const {
54 if (Sec) {61 if (Sec)
55 if (OutputSection *OS = Sec->getOutputSection())62 return alignTo(Sec->getOffset(Val) + getOutputSectionVA(Sec, Loc),
56 return alignTo(Sec->getOffset(Val) + OS->Addr, Alignment);63 Alignment);
57 error(Loc + ": unable to evaluate expression: input section " + Sec->Name +
58 " has no output section assigned");
59 }
60 return alignTo(Val, Alignment);64 return alignTo(Val, Alignment);
61}65}
6266
63uint64_t ExprValue::getSecAddr() const {67uint64_t ExprValue::getSecAddr() const {
64 if (Sec)68 if (Sec)
65 return Sec->getOffset(0) + Sec->getOutputSection()->Addr;69 return Sec->getOffset(0) + getOutputSectionVA(Sec, Loc);
66 return 0;70 return 0;
67}71}
6872
69template <class ELFT> static SymbolBody *addRegular(SymbolAssignment *Cmd) {73uint64_t ExprValue::getSectionOffset() const {
70 Symbol *Sym;74 // If the alignment is trivial, we don't have to compute the full
71 uint8_t Visibility = Cmd->Hidden ? STV_HIDDEN : STV_DEFAULT;75 // value to know the offset. This allows this function to succeed in
72 std::tie(Sym, std::ignore) = Symtab<ELFT>::X->insert(76 // cases where the output section is not yet known.
73 Cmd->Name, /*Type*/ 0, Visibility, /*CanOmitFromDynSym*/ false,77 if (Alignment == 1)
74 /*File*/ nullptr);78 return Val;
75 Sym->Binding = STB_GLOBAL;79 return getValue() - getSecAddr();
76 ExprValue Value = Cmd->Expression();
77 SectionBase *Sec = Value.isAbsolute() ? nullptr : Value.Sec;
78
79 // We want to set symbol values early if we can. This allows us to use symbols
80 // as variables in linker scripts. Doing so allows us to write expressions
81 // like this: `alignment = 16; . = ALIGN(., alignment)`
82 uint64_t SymValue = Value.isAbsolute() ? Value.getValue() : 0;
83 replaceBody<DefinedRegular>(Sym, Cmd->Name, /*IsLocal=*/false, Visibility,
84 STT_NOTYPE, SymValue, 0, Sec, nullptr);
85 return Sym->body();
86}80}
8781
88OutputSectionCommand *82OutputSection *LinkerScript::createOutputSection(StringRef Name,
89LinkerScript::createOutputSectionCommand(StringRef Name, StringRef Location) {83 StringRef Location) {
90 OutputSectionCommand *&CmdRef = NameToOutputSectionCommand[Name];84 OutputSection *&SecRef = NameToOutputSection[Name];
91 OutputSectionCommand *Cmd;85 OutputSection *Sec;
92 if (CmdRef && CmdRef->Location.empty()) {86 if (SecRef && SecRef->Location.empty()) {
93 // There was a forward reference.87 // There was a forward reference.
94 Cmd = CmdRef;88 Sec = SecRef;
95 } else {89 } else {
96 Cmd = make<OutputSectionCommand>(Name);90 Sec = make<OutputSection>(Name, SHT_NOBITS, 0);
97 if (!CmdRef)91 if (!SecRef)
98 CmdRef = Cmd;92 SecRef = Sec;
99 }93 }
100 Cmd->Location = Location;94 Sec->Location = Location;
101 return Cmd;95 return Sec;
102}96}
10397
104OutputSectionCommand *98OutputSection *LinkerScript::getOrCreateOutputSection(StringRef Name) {
105LinkerScript::getOrCreateOutputSectionCommand(StringRef Name) {99 OutputSection *&CmdRef = NameToOutputSection[Name];
106 OutputSectionCommand *&CmdRef = NameToOutputSectionCommand[Name];
107 if (!CmdRef)100 if (!CmdRef)
108 CmdRef = make<OutputSectionCommand>(Name);101 CmdRef = make<OutputSection>(Name, SHT_PROGBITS, 0);
109 return CmdRef;102 return CmdRef;
110}103}
111104
...@@ -113,16 +106,56 @@ void LinkerScript::setDot(Expr E, const Twine &Loc, bool InSec) {...@@ -113,16 +106,56 @@ void LinkerScript::setDot(Expr E, const Twine &Loc, bool InSec) {
113 uint64_t Val = E().getValue();106 uint64_t Val = E().getValue();
114 if (Val < Dot && InSec)107 if (Val < Dot && InSec)
115 error(Loc + ": unable to move location counter backward for: " +108 error(Loc + ": unable to move location counter backward for: " +
116 CurAddressState->OutSec->Name);109 Ctx->OutSec->Name);
117 Dot = Val;110 Dot = Val;
111
118 // Update to location counter means update to section size.112 // Update to location counter means update to section size.
119 if (InSec)113 if (InSec)
120 CurAddressState->OutSec->Size = Dot - CurAddressState->OutSec->Addr;114 Ctx->OutSec->Size = Dot - Ctx->OutSec->Addr;
121}115}
122116
123// Sets value of a symbol. Two kinds of symbols are processed: synthetic117// This function is called from processSectionCommands,
124// symbols, whose value is an offset from beginning of section and regular118// while we are fixing the output section layout.
125// symbols whose value is absolute.119void LinkerScript::addSymbol(SymbolAssignment *Cmd) {
120 if (Cmd->Name == ".")
121 return;
122
123 // If a symbol was in PROVIDE(), we need to define it only when
124 // it is a referenced undefined symbol.
125 Symbol *B = Symtab->find(Cmd->Name);
126 if (Cmd->Provide && (!B || B->isDefined()))
127 return;
128
129 // Define a symbol.
130 Symbol *Sym;
131 uint8_t Visibility = Cmd->Hidden ? STV_HIDDEN : STV_DEFAULT;
132 std::tie(Sym, std::ignore) = Symtab->insert(Cmd->Name, /*Type*/ 0, Visibility,
133 /*CanOmitFromDynSym*/ false,
134 /*File*/ nullptr);
135 ExprValue Value = Cmd->Expression();
136 SectionBase *Sec = Value.isAbsolute() ? nullptr : Value.Sec;
137
138 // When this function is called, section addresses have not been
139 // fixed yet. So, we may or may not know the value of the RHS
140 // expression.
141 //
142 // For example, if an expression is `x = 42`, we know x is always 42.
143 // However, if an expression is `x = .`, there's no way to know its
144 // value at the moment.
145 //
146 // We want to set symbol values early if we can. This allows us to
147 // use symbols as variables in linker scripts. Doing so allows us to
148 // write expressions like this: `alignment = 16; . = ALIGN(., alignment)`.
149 uint64_t SymValue = Value.Sec ? 0 : Value.getValue();
150
151 replaceSymbol<Defined>(Sym, nullptr, Cmd->Name, STB_GLOBAL, Visibility,
152 STT_NOTYPE, SymValue, 0, Sec);
153 Cmd->Sym = cast<Defined>(Sym);
154}
155
156// This function is called from assignAddresses, while we are
157// fixing the output section addresses. This function is supposed
158// to set the final value for a given symbol assignment.
126void LinkerScript::assignSymbol(SymbolAssignment *Cmd, bool InSec) {159void LinkerScript::assignSymbol(SymbolAssignment *Cmd, bool InSec) {
127 if (Cmd->Name == ".") {160 if (Cmd->Name == ".") {
128 setDot(Cmd->Expression, Cmd->Location, InSec);161 setDot(Cmd->Expression, Cmd->Location, InSec);
...@@ -132,116 +165,36 @@ void LinkerScript::assignSymbol(SymbolAssignment *Cmd, bool InSec) {...@@ -132,116 +165,36 @@ void LinkerScript::assignSymbol(SymbolAssignment *Cmd, bool InSec) {
132 if (!Cmd->Sym)165 if (!Cmd->Sym)
133 return;166 return;
134167
135 auto *Sym = cast<DefinedRegular>(Cmd->Sym);
136 ExprValue V = Cmd->Expression();168 ExprValue V = Cmd->Expression();
137 if (V.isAbsolute()) {169 if (V.isAbsolute()) {
138 Sym->Value = V.getValue();170 Cmd->Sym->Section = nullptr;
171 Cmd->Sym->Value = V.getValue();
139 } else {172 } else {
140 Sym->Section = V.Sec;173 Cmd->Sym->Section = V.Sec;
141 Sym->Value = alignTo(V.Val, V.Alignment);174 Cmd->Sym->Value = V.getSectionOffset();
142 }
143}
144
145static SymbolBody *findSymbol(StringRef S) {
146 switch (Config->EKind) {
147 case ELF32LEKind:
148 return Symtab<ELF32LE>::X->find(S);
149 case ELF32BEKind:
150 return Symtab<ELF32BE>::X->find(S);
151 case ELF64LEKind:
152 return Symtab<ELF64LE>::X->find(S);
153 case ELF64BEKind:
154 return Symtab<ELF64BE>::X->find(S);
155 default:
156 llvm_unreachable("unknown Config->EKind");
157 }175 }
158}176}
159177
160static SymbolBody *addRegularSymbol(SymbolAssignment *Cmd) {178static std::string getFilename(InputFile *File) {
161 switch (Config->EKind) {179 if (!File)
162 case ELF32LEKind:180 return "";
163 return addRegular<ELF32LE>(Cmd);181 if (File->ArchiveName.empty())
164 case ELF32BEKind:182 return File->getName();
165 return addRegular<ELF32BE>(Cmd);183 return (File->ArchiveName + "(" + File->getName() + ")").str();
166 case ELF64LEKind:
167 return addRegular<ELF64LE>(Cmd);
168 case ELF64BEKind:
169 return addRegular<ELF64BE>(Cmd);
170 default:
171 llvm_unreachable("unknown Config->EKind");
172 }
173}
174
175void LinkerScript::addSymbol(SymbolAssignment *Cmd) {
176 if (Cmd->Name == ".")
177 return;
178
179 // If a symbol was in PROVIDE(), we need to define it only when
180 // it is a referenced undefined symbol.
181 SymbolBody *B = findSymbol(Cmd->Name);
182 if (Cmd->Provide && (!B || B->isDefined()))
183 return;
184
185 Cmd->Sym = addRegularSymbol(Cmd);
186}
187
188bool SymbolAssignment::classof(const BaseCommand *C) {
189 return C->Kind == AssignmentKind;
190}
191
192bool OutputSectionCommand::classof(const BaseCommand *C) {
193 return C->Kind == OutputSectionKind;
194}
195
196// Fill [Buf, Buf + Size) with Filler.
197// This is used for linker script "=fillexp" command.
198static void fill(uint8_t *Buf, size_t Size, uint32_t Filler) {
199 size_t I = 0;
200 for (; I + 4 < Size; I += 4)
201 memcpy(Buf + I, &Filler, 4);
202 memcpy(Buf + I, &Filler, Size - I);
203}
204
205bool InputSectionDescription::classof(const BaseCommand *C) {
206 return C->Kind == InputSectionKind;
207}
208
209bool AssertCommand::classof(const BaseCommand *C) {
210 return C->Kind == AssertKind;
211}
212
213bool BytesDataCommand::classof(const BaseCommand *C) {
214 return C->Kind == BytesDataKind;
215}
216
217static StringRef basename(InputSectionBase *S) {
218 if (S->File)
219 return sys::path::filename(S->File->getName());
220 return "";
221}184}
222185
223bool LinkerScript::shouldKeep(InputSectionBase *S) {186bool LinkerScript::shouldKeep(InputSectionBase *S) {
224 for (InputSectionDescription *ID : Opt.KeptSections)187 if (KeptSections.empty())
225 if (ID->FilePat.match(basename(S)))188 return false;
189 std::string Filename = getFilename(S->File);
190 for (InputSectionDescription *ID : KeptSections)
191 if (ID->FilePat.match(Filename))
226 for (SectionPattern &P : ID->SectionPatterns)192 for (SectionPattern &P : ID->SectionPatterns)
227 if (P.SectionPat.match(S->Name))193 if (P.SectionPat.match(S->Name))
228 return true;194 return true;
229 return false;195 return false;
230}196}
231197
232// If an input string is in the form of "foo.N" where N is a number,
233// return N. Otherwise, returns 65536, which is one greater than the
234// lowest priority.
235static int getPriority(StringRef S) {
236 size_t Pos = S.rfind('.');
237 if (Pos == StringRef::npos)
238 return 65536;
239 int V;
240 if (!to_integer(S.substr(Pos + 1), V, 10))
241 return 65536;
242 return V;
243}
244
245// A helper function for the SORT() command.198// A helper function for the SORT() command.
246static std::function<bool(InputSectionBase *, InputSectionBase *)>199static std::function<bool(InputSectionBase *, InputSectionBase *)>
247getComparator(SortSectionPolicy K) {200getComparator(SortSectionPolicy K) {
...@@ -267,28 +220,63 @@ getComparator(SortSectionPolicy K) {...@@ -267,28 +220,63 @@ getComparator(SortSectionPolicy K) {
267}220}
268221
269// A helper function for the SORT() command.222// A helper function for the SORT() command.
270static bool matchConstraints(ArrayRef<InputSectionBase *> Sections,223static bool matchConstraints(ArrayRef<InputSection *> Sections,
271 ConstraintKind Kind) {224 ConstraintKind Kind) {
272 if (Kind == ConstraintKind::NoConstraint)225 if (Kind == ConstraintKind::NoConstraint)
273 return true;226 return true;
274227
275 bool IsRW = llvm::any_of(Sections, [](InputSectionBase *Sec) {228 bool IsRW = llvm::any_of(
276 return static_cast<InputSectionBase *>(Sec)->Flags & SHF_WRITE;229 Sections, [](InputSection *Sec) { return Sec->Flags & SHF_WRITE; });
277 });
278230
279 return (IsRW && Kind == ConstraintKind::ReadWrite) ||231 return (IsRW && Kind == ConstraintKind::ReadWrite) ||
280 (!IsRW && Kind == ConstraintKind::ReadOnly);232 (!IsRW && Kind == ConstraintKind::ReadOnly);
281}233}
282234
283static void sortSections(InputSection **Begin, InputSection **End,235static void sortSections(MutableArrayRef<InputSection *> Vec,
284 SortSectionPolicy K) {236 SortSectionPolicy K) {
285 if (K != SortSectionPolicy::Default && K != SortSectionPolicy::None)237 if (K != SortSectionPolicy::Default && K != SortSectionPolicy::None)
286 std::stable_sort(Begin, End, getComparator(K));238 std::stable_sort(Vec.begin(), Vec.end(), getComparator(K));
239}
240
241// Sort sections as instructed by SORT-family commands and --sort-section
242// option. Because SORT-family commands can be nested at most two depth
243// (e.g. SORT_BY_NAME(SORT_BY_ALIGNMENT(.text.*))) and because the command
244// line option is respected even if a SORT command is given, the exact
245// behavior we have here is a bit complicated. Here are the rules.
246//
247// 1. If two SORT commands are given, --sort-section is ignored.
248// 2. If one SORT command is given, and if it is not SORT_NONE,
249// --sort-section is handled as an inner SORT command.
250// 3. If one SORT command is given, and if it is SORT_NONE, don't sort.
251// 4. If no SORT command is given, sort according to --sort-section.
252// 5. If no SORT commands are given and --sort-section is not specified,
253// apply sorting provided by --symbol-ordering-file if any exist.
254static void sortInputSections(
255 MutableArrayRef<InputSection *> Vec, const SectionPattern &Pat,
256 const DenseMap<SectionBase *, int> &Order) {
257 if (Pat.SortOuter == SortSectionPolicy::None)
258 return;
259
260 if (Pat.SortOuter == SortSectionPolicy::Default &&
261 Config->SortSection == SortSectionPolicy::Default) {
262 // If -symbol-ordering-file was given, sort accordingly.
263 // Usually, Order is empty.
264 if (!Order.empty())
265 sortByOrder(Vec, [&](InputSectionBase *S) { return Order.lookup(S); });
266 return;
267 }
268
269 if (Pat.SortInner == SortSectionPolicy::Default)
270 sortSections(Vec, Config->SortSection);
271 else
272 sortSections(Vec, Pat.SortInner);
273 sortSections(Vec, Pat.SortOuter);
287}274}
288275
289// Compute and remember which sections the InputSectionDescription matches.276// Compute and remember which sections the InputSectionDescription matches.
290std::vector<InputSection *>277std::vector<InputSection *>
291LinkerScript::computeInputSections(const InputSectionDescription *Cmd) {278LinkerScript::computeInputSections(const InputSectionDescription *Cmd,
279 const DenseMap<SectionBase *, int> &Order) {
292 std::vector<InputSection *> Ret;280 std::vector<InputSection *> Ret;
293281
294 // Collects all sections that satisfy constraints of Cmd.282 // Collects all sections that satisfy constraints of Cmd.
...@@ -296,13 +284,8 @@ LinkerScript::computeInputSections(const InputSectionDescription *Cmd) {...@@ -296,13 +284,8 @@ LinkerScript::computeInputSections(const InputSectionDescription *Cmd) {
296 size_t SizeBefore = Ret.size();284 size_t SizeBefore = Ret.size();
297285
298 for (InputSectionBase *Sec : InputSections) {286 for (InputSectionBase *Sec : InputSections) {
299 if (Sec->Assigned)287 if (!Sec->Live || Sec->Assigned)
300 continue;
301
302 if (!Sec->Live) {
303 reportDiscarded(Sec);
304 continue;288 continue;
305 }
306289
307 // For -emit-relocs we have to ignore entries like290 // For -emit-relocs we have to ignore entries like
308 // .rela.dyn : { *(.rela.data) }291 // .rela.dyn : { *(.rela.data) }
...@@ -310,67 +293,51 @@ LinkerScript::computeInputSections(const InputSectionDescription *Cmd) {...@@ -310,67 +293,51 @@ LinkerScript::computeInputSections(const InputSectionDescription *Cmd) {
310 if (Sec->Type == SHT_REL || Sec->Type == SHT_RELA)293 if (Sec->Type == SHT_REL || Sec->Type == SHT_RELA)
311 continue;294 continue;
312295
313 StringRef Filename = basename(Sec);296 std::string Filename = getFilename(Sec->File);
314 if (!Cmd->FilePat.match(Filename) ||297 if (!Cmd->FilePat.match(Filename) ||
315 Pat.ExcludedFilePat.match(Filename) ||298 Pat.ExcludedFilePat.match(Filename) ||
316 !Pat.SectionPat.match(Sec->Name))299 !Pat.SectionPat.match(Sec->Name))
317 continue;300 continue;
318301
302 // It is safe to assume that Sec is an InputSection
303 // because mergeable or EH input sections have already been
304 // handled and eliminated.
319 Ret.push_back(cast<InputSection>(Sec));305 Ret.push_back(cast<InputSection>(Sec));
320 Sec->Assigned = true;306 Sec->Assigned = true;
321 }307 }
322308
323 // Sort sections as instructed by SORT-family commands and --sort-section309 sortInputSections(MutableArrayRef<InputSection *>(Ret).slice(SizeBefore),
324 // option. Because SORT-family commands can be nested at most two depth310 Pat, Order);
325 // (e.g. SORT_BY_NAME(SORT_BY_ALIGNMENT(.text.*))) and because the command
326 // line option is respected even if a SORT command is given, the exact
327 // behavior we have here is a bit complicated. Here are the rules.
328 //
329 // 1. If two SORT commands are given, --sort-section is ignored.
330 // 2. If one SORT command is given, and if it is not SORT_NONE,
331 // --sort-section is handled as an inner SORT command.
332 // 3. If one SORT command is given, and if it is SORT_NONE, don't sort.
333 // 4. If no SORT command is given, sort according to --sort-section.
334 InputSection **Begin = Ret.data() + SizeBefore;
335 InputSection **End = Ret.data() + Ret.size();
336 if (Pat.SortOuter != SortSectionPolicy::None) {
337 if (Pat.SortInner == SortSectionPolicy::Default)
338 sortSections(Begin, End, Config->SortSection);
339 else
340 sortSections(Begin, End, Pat.SortInner);
341 sortSections(Begin, End, Pat.SortOuter);
342 }
343 }311 }
344 return Ret;312 return Ret;
345}313}
346314
347void LinkerScript::discard(ArrayRef<InputSectionBase *> V) {315void LinkerScript::discard(ArrayRef<InputSection *> V) {
348 for (InputSectionBase *S : V) {316 for (InputSection *S : V) {
349 S->Live = false;
350 if (S == InX::ShStrTab || S == InX::Dynamic || S == InX::DynSymTab ||317 if (S == InX::ShStrTab || S == InX::Dynamic || S == InX::DynSymTab ||
351 S == InX::DynStrTab)318 S == InX::DynStrTab)
352 error("discarding " + S->Name + " section is not allowed");319 error("discarding " + S->Name + " section is not allowed");
320
321 S->Assigned = false;
322 S->Live = false;
353 discard(S->DependentSections);323 discard(S->DependentSections);
354 }324 }
355}325}
356326
357std::vector<InputSectionBase *>327std::vector<InputSection *> LinkerScript::createInputSectionList(
358LinkerScript::createInputSectionList(OutputSectionCommand &OutCmd) {328 OutputSection &OutCmd, const DenseMap<SectionBase *, int> &Order) {
359 std::vector<InputSectionBase *> Ret;329 std::vector<InputSection *> Ret;
360
361 for (BaseCommand *Base : OutCmd.Commands) {
362 auto *Cmd = dyn_cast<InputSectionDescription>(Base);
363 if (!Cmd)
364 continue;
365330
366 Cmd->Sections = computeInputSections(Cmd);331 for (BaseCommand *Base : OutCmd.SectionCommands) {
367 Ret.insert(Ret.end(), Cmd->Sections.begin(), Cmd->Sections.end());332 if (auto *Cmd = dyn_cast<InputSectionDescription>(Base)) {
333 Cmd->Sections = computeInputSections(Cmd, Order);
334 Ret.insert(Ret.end(), Cmd->Sections.begin(), Cmd->Sections.end());
335 }
368 }336 }
369
370 return Ret;337 return Ret;
371}338}
372339
373void LinkerScript::processCommands(OutputSectionFactory &Factory) {340void LinkerScript::processSectionCommands() {
374 // A symbol can be assigned before any section is mentioned in the linker341 // A symbol can be assigned before any section is mentioned in the linker
375 // script. In an DSO, the symbol values are addresses, so the only important342 // script. In an DSO, the symbol values are addresses, so the only important
376 // section values are:343 // section values are:
...@@ -382,28 +349,31 @@ void LinkerScript::processCommands(OutputSectionFactory &Factory) {...@@ -382,28 +349,31 @@ void LinkerScript::processCommands(OutputSectionFactory &Factory) {
382 // which will map to whatever the first actual section is.349 // which will map to whatever the first actual section is.
383 Aether = make<OutputSection>("", 0, SHF_ALLOC);350 Aether = make<OutputSection>("", 0, SHF_ALLOC);
384 Aether->SectionIndex = 1;351 Aether->SectionIndex = 1;
385 auto State = make_unique<AddressState>(Opt);352
386 // CurAddressState captures the local AddressState and makes it accessible353 // Ctx captures the local AddressState and makes it accessible deliberately.
387 // deliberately. This is needed as there are some cases where we cannot just354 // This is needed as there are some cases where we cannot just
388 // thread the current state through to a lambda function created by the355 // thread the current state through to a lambda function created by the
389 // script parser.356 // script parser.
390 CurAddressState = State.get();357 auto Deleter = make_unique<AddressState>();
391 CurAddressState->OutSec = Aether;358 Ctx = Deleter.get();
392 Dot = 0;359 Ctx->OutSec = Aether;
393360
394 for (size_t I = 0; I < Opt.Commands.size(); ++I) {361 size_t I = 0;
362 DenseMap<SectionBase *, int> Order = buildSectionOrder();
363 // Add input sections to output sections.
364 for (BaseCommand *Base : SectionCommands) {
395 // Handle symbol assignments outside of any output section.365 // Handle symbol assignments outside of any output section.
396 if (auto *Cmd = dyn_cast<SymbolAssignment>(Opt.Commands[I])) {366 if (auto *Cmd = dyn_cast<SymbolAssignment>(Base)) {
397 addSymbol(Cmd);367 addSymbol(Cmd);
398 continue;368 continue;
399 }369 }
400370
401 if (auto *Cmd = dyn_cast<OutputSectionCommand>(Opt.Commands[I])) {371 if (auto *Sec = dyn_cast<OutputSection>(Base)) {
402 std::vector<InputSectionBase *> V = createInputSectionList(*Cmd);372 std::vector<InputSection *> V = createInputSectionList(*Sec, Order);
403373
404 // The output section name `/DISCARD/' is special.374 // The output section name `/DISCARD/' is special.
405 // Any input section assigned to it is discarded.375 // Any input section assigned to it is discarded.
406 if (Cmd->Name == "/DISCARD/") {376 if (Sec->Name == "/DISCARD/") {
407 discard(V);377 discard(V);
408 continue;378 continue;
409 }379 }
...@@ -413,250 +383,265 @@ void LinkerScript::processCommands(OutputSectionFactory &Factory) {...@@ -413,250 +383,265 @@ void LinkerScript::processCommands(OutputSectionFactory &Factory) {
413 // sections satisfy a given constraint. If not, a directive is handled383 // sections satisfy a given constraint. If not, a directive is handled
414 // as if it wasn't present from the beginning.384 // as if it wasn't present from the beginning.
415 //385 //
416 // Because we'll iterate over Commands many more times, the easiest386 // Because we'll iterate over SectionCommands many more times, the easy
417 // way to "make it as if it wasn't present" is to just remove it.387 // way to "make it as if it wasn't present" is to make it empty.
418 if (!matchConstraints(V, Cmd->Constraint)) {388 if (!matchConstraints(V, Sec->Constraint)) {
419 for (InputSectionBase *S : V)389 for (InputSectionBase *S : V)
420 S->Assigned = false;390 S->Assigned = false;
421 Opt.Commands.erase(Opt.Commands.begin() + I);391 Sec->SectionCommands.clear();
422 --I;
423 continue;392 continue;
424 }393 }
425394
426 // A directive may contain symbol definitions like this:395 // A directive may contain symbol definitions like this:
427 // ".foo : { ...; bar = .; }". Handle them.396 // ".foo : { ...; bar = .; }". Handle them.
428 for (BaseCommand *Base : Cmd->Commands)397 for (BaseCommand *Base : Sec->SectionCommands)
429 if (auto *OutCmd = dyn_cast<SymbolAssignment>(Base))398 if (auto *OutCmd = dyn_cast<SymbolAssignment>(Base))
430 addSymbol(OutCmd);399 addSymbol(OutCmd);
431400
432 // Handle subalign (e.g. ".foo : SUBALIGN(32) { ... }"). If subalign401 // Handle subalign (e.g. ".foo : SUBALIGN(32) { ... }"). If subalign
433 // is given, input sections are aligned to that value, whether the402 // is given, input sections are aligned to that value, whether the
434 // given value is larger or smaller than the original section alignment.403 // given value is larger or smaller than the original section alignment.
435 if (Cmd->SubalignExpr) {404 if (Sec->SubalignExpr) {
436 uint32_t Subalign = Cmd->SubalignExpr().getValue();405 uint32_t Subalign = Sec->SubalignExpr().getValue();
437 for (InputSectionBase *S : V)406 for (InputSectionBase *S : V)
438 S->Alignment = Subalign;407 S->Alignment = Subalign;
439 }408 }
440409
441 // Add input sections to an output section.410 // Add input sections to an output section.
442 for (InputSectionBase *S : V)411 for (InputSection *S : V)
443 Factory.addInputSec(S, Cmd->Name, Cmd->Sec);412 Sec->addSection(S);
444 if (OutputSection *Sec = Cmd->Sec) {413
445 assert(Sec->SectionIndex == INT_MAX);414 Sec->SectionIndex = I++;
446 Sec->SectionIndex = I;415 if (Sec->Noload)
447 if (Cmd->Noload)416 Sec->Type = SHT_NOBITS;
448 Sec->Type = SHT_NOBITS;
449 SecToCommand[Sec] = Cmd;
450 }
451 }417 }
452 }418 }
453 CurAddressState = nullptr;419 Ctx = nullptr;
454}420}
455421
456void LinkerScript::fabricateDefaultCommands() {422static OutputSection *findByName(ArrayRef<BaseCommand *> Vec,
457 std::vector<BaseCommand *> Commands;423 StringRef Name) {
458424 for (BaseCommand *Base : Vec)
459 // Define start address425 if (auto *Sec = dyn_cast<OutputSection>(Base))
460 uint64_t StartAddr = -1;426 if (Sec->Name == Name)
461427 return Sec;
462 // The Sections with -T<section> have been sorted in order of ascending428 return nullptr;
463 // address. We must lower StartAddr if the lowest -T<section address> as429}
464 // calls to setDot() must be monotonically increasing.
465 for (auto &KV : Config->SectionStartMap)
466 StartAddr = std::min(StartAddr, KV.second);
467
468 Commands.push_back(make<SymbolAssignment>(
469 ".",
470 [=] {
471 return std::min(StartAddr, Config->ImageBase + elf::getHeaderSize());
472 },
473 ""));
474430
475 // For each OutputSection that needs a VA fabricate an OutputSectionCommand431static OutputSection *createSection(InputSectionBase *IS,
476 // with an InputSectionDescription describing the InputSections432 StringRef OutsecName) {
477 for (OutputSection *Sec : OutputSections) {433 OutputSection *Sec = Script->createOutputSection(OutsecName, "<internal>");
478 auto *OSCmd = createOutputSectionCommand(Sec->Name, "<internal>");434 Sec->addSection(cast<InputSection>(IS));
479 OSCmd->Sec = Sec;435 return Sec;
480 SecToCommand[Sec] = OSCmd;436}
481437
482 Commands.push_back(OSCmd);438static OutputSection *addInputSec(StringMap<OutputSection *> &Map,
483 if (Sec->Sections.size()) {439 InputSectionBase *IS, StringRef OutsecName) {
484 auto *ISD = make<InputSectionDescription>("");440 // Sections with SHT_GROUP or SHF_GROUP attributes reach here only when the -r
485 OSCmd->Commands.push_back(ISD);441 // option is given. A section with SHT_GROUP defines a "section group", and
486 for (InputSection *ISec : Sec->Sections) {442 // its members have SHF_GROUP attribute. Usually these flags have already been
487 ISD->Sections.push_back(ISec);443 // stripped by InputFiles.cpp as section groups are processed and uniquified.
488 ISec->Assigned = true;444 // However, for the -r option, we want to pass through all section groups
489 }445 // as-is because adding/removing members or merging them with other groups
446 // change their semantics.
447 if (IS->Type == SHT_GROUP || (IS->Flags & SHF_GROUP))
448 return createSection(IS, OutsecName);
449
450 // Imagine .zed : { *(.foo) *(.bar) } script. Both foo and bar may have
451 // relocation sections .rela.foo and .rela.bar for example. Most tools do
452 // not allow multiple REL[A] sections for output section. Hence we
453 // should combine these relocation sections into single output.
454 // We skip synthetic sections because it can be .rela.dyn/.rela.plt or any
455 // other REL[A] sections created by linker itself.
456 if (!isa<SyntheticSection>(IS) &&
457 (IS->Type == SHT_REL || IS->Type == SHT_RELA)) {
458 auto *Sec = cast<InputSection>(IS);
459 OutputSection *Out = Sec->getRelocatedSection()->getOutputSection();
460
461 if (Out->RelocationSection) {
462 Out->RelocationSection->addSection(Sec);
463 return nullptr;
490 }464 }
465
466 Out->RelocationSection = createSection(IS, OutsecName);
467 return Out->RelocationSection;
468 }
469
470 // When control reaches here, mergeable sections have already been merged into
471 // synthetic sections. For relocatable case we want to create one output
472 // section per syntetic section so that they have a valid sh_entsize.
473 if (Config->Relocatable && (IS->Flags & SHF_MERGE))
474 return createSection(IS, OutsecName);
475
476 // The ELF spec just says
477 // ----------------------------------------------------------------
478 // In the first phase, input sections that match in name, type and
479 // attribute flags should be concatenated into single sections.
480 // ----------------------------------------------------------------
481 //
482 // However, it is clear that at least some flags have to be ignored for
483 // section merging. At the very least SHF_GROUP and SHF_COMPRESSED have to be
484 // ignored. We should not have two output .text sections just because one was
485 // in a group and another was not for example.
486 //
487 // It also seems that that wording was a late addition and didn't get the
488 // necessary scrutiny.
489 //
490 // Merging sections with different flags is expected by some users. One
491 // reason is that if one file has
492 //
493 // int *const bar __attribute__((section(".foo"))) = (int *)0;
494 //
495 // gcc with -fPIC will produce a read only .foo section. But if another
496 // file has
497 //
498 // int zed;
499 // int *const bar __attribute__((section(".foo"))) = (int *)&zed;
500 //
501 // gcc with -fPIC will produce a read write section.
502 //
503 // Last but not least, when using linker script the merge rules are forced by
504 // the script. Unfortunately, linker scripts are name based. This means that
505 // expressions like *(.foo*) can refer to multiple input sections with
506 // different flags. We cannot put them in different output sections or we
507 // would produce wrong results for
508 //
509 // start = .; *(.foo.*) end = .; *(.bar)
510 //
511 // and a mapping of .foo1 and .bar1 to one section and .foo2 and .bar2 to
512 // another. The problem is that there is no way to layout those output
513 // sections such that the .foo sections are the only thing between the start
514 // and end symbols.
515 //
516 // Given the above issues, we instead merge sections by name and error on
517 // incompatible types and flags.
518 OutputSection *&Sec = Map[OutsecName];
519 if (Sec) {
520 Sec->addSection(cast<InputSection>(IS));
521 return nullptr;
491 }522 }
492 // SECTIONS commands run before other non SECTIONS commands523
493 Commands.insert(Commands.end(), Opt.Commands.begin(), Opt.Commands.end());524 Sec = createSection(IS, OutsecName);
494 Opt.Commands = std::move(Commands);525 return Sec;
495}526}
496527
497// Add sections that didn't match any sections command.528// Add sections that didn't match any sections command.
498void LinkerScript::addOrphanSections(OutputSectionFactory &Factory) {529void LinkerScript::addOrphanSections() {
499 unsigned NumCommands = Opt.Commands.size();530 unsigned End = SectionCommands.size();
531 StringMap<OutputSection *> Map;
532
533 std::vector<OutputSection *> V;
500 for (InputSectionBase *S : InputSections) {534 for (InputSectionBase *S : InputSections) {
501 if (!S->Live || S->Parent)535 if (!S->Live || S->Parent)
502 continue;536 continue;
503 StringRef Name = getOutputSectionName(S->Name);537
504 auto End = Opt.Commands.begin() + NumCommands;538 StringRef Name = getOutputSectionName(S);
505 auto I = std::find_if(Opt.Commands.begin(), End, [&](BaseCommand *Base) {539
506 if (auto *Cmd = dyn_cast<OutputSectionCommand>(Base))540 if (Config->OrphanHandling == OrphanHandlingPolicy::Error)
507 return Cmd->Name == Name;541 error(toString(S) + " is being placed in '" + Name + "'");
508 return false;542 else if (Config->OrphanHandling == OrphanHandlingPolicy::Warn)
509 });543 warn(toString(S) + " is being placed in '" + Name + "'");
510 OutputSectionCommand *Cmd;544
511 if (I == End) {545 if (OutputSection *Sec =
512 Factory.addInputSec(S, Name);546 findByName(makeArrayRef(SectionCommands).slice(0, End), Name)) {
513 OutputSection *Sec = S->getOutputSection();547 Sec->addSection(cast<InputSection>(S));
514 assert(Sec->SectionIndex == INT_MAX);548 continue;
515 OutputSectionCommand *&CmdRef = SecToCommand[Sec];
516 if (!CmdRef) {
517 CmdRef = createOutputSectionCommand(Sec->Name, "<internal>");
518 CmdRef->Sec = Sec;
519 Opt.Commands.push_back(CmdRef);
520 }
521 Cmd = CmdRef;
522 } else {
523 Cmd = cast<OutputSectionCommand>(*I);
524 Factory.addInputSec(S, Name, Cmd->Sec);
525 if (OutputSection *Sec = Cmd->Sec) {
526 SecToCommand[Sec] = Cmd;
527 unsigned Index = std::distance(Opt.Commands.begin(), I);
528 assert(Sec->SectionIndex == INT_MAX || Sec->SectionIndex == Index);
529 Sec->SectionIndex = Index;
530 }
531 }549 }
532 auto *ISD = make<InputSectionDescription>("");550
533 ISD->Sections.push_back(cast<InputSection>(S));551 if (OutputSection *OS = addInputSec(Map, S, Name))
534 Cmd->Commands.push_back(ISD);552 V.push_back(OS);
553 assert(S->getOutputSection()->SectionIndex == INT_MAX);
535 }554 }
555
556 // If no SECTIONS command was given, we should insert sections commands
557 // before others, so that we can handle scripts which refers them,
558 // for example: "foo = ABSOLUTE(ADDR(.text)));".
559 // When SECTIONS command is present we just add all orphans to the end.
560 if (HasSectionsCommand)
561 SectionCommands.insert(SectionCommands.end(), V.begin(), V.end());
562 else
563 SectionCommands.insert(SectionCommands.begin(), V.begin(), V.end());
536}564}
537565
538uint64_t LinkerScript::advance(uint64_t Size, unsigned Align) {566uint64_t LinkerScript::advance(uint64_t Size, unsigned Alignment) {
539 bool IsTbss = (CurAddressState->OutSec->Flags & SHF_TLS) &&567 bool IsTbss =
540 CurAddressState->OutSec->Type == SHT_NOBITS;568 (Ctx->OutSec->Flags & SHF_TLS) && Ctx->OutSec->Type == SHT_NOBITS;
541 uint64_t Start = IsTbss ? Dot + CurAddressState->ThreadBssOffset : Dot;569 uint64_t Start = IsTbss ? Dot + Ctx->ThreadBssOffset : Dot;
542 Start = alignTo(Start, Align);570 Start = alignTo(Start, Alignment);
543 uint64_t End = Start + Size;571 uint64_t End = Start + Size;
544572
545 if (IsTbss)573 if (IsTbss)
546 CurAddressState->ThreadBssOffset = End - Dot;574 Ctx->ThreadBssOffset = End - Dot;
547 else575 else
548 Dot = End;576 Dot = End;
549 return End;577 return End;
550}578}
551579
552void LinkerScript::output(InputSection *S) {580void LinkerScript::output(InputSection *S) {
581 uint64_t Before = advance(0, 1);
553 uint64_t Pos = advance(S->getSize(), S->Alignment);582 uint64_t Pos = advance(S->getSize(), S->Alignment);
554 S->OutSecOff = Pos - S->getSize() - CurAddressState->OutSec->Addr;583 S->OutSecOff = Pos - S->getSize() - Ctx->OutSec->Addr;
555584
556 // Update output section size after adding each section. This is so that585 // Update output section size after adding each section. This is so that
557 // SIZEOF works correctly in the case below:586 // SIZEOF works correctly in the case below:
558 // .foo { *(.aaa) a = SIZEOF(.foo); *(.bbb) }587 // .foo { *(.aaa) a = SIZEOF(.foo); *(.bbb) }
559 CurAddressState->OutSec->Size = Pos - CurAddressState->OutSec->Addr;588 Ctx->OutSec->Size = Pos - Ctx->OutSec->Addr;
560589
561 // If there is a memory region associated with this input section, then590 // If there is a memory region associated with this input section, then
562 // place the section in that region and update the region index.591 // place the section in that region and update the region index.
563 if (CurAddressState->MemRegion) {592 if (Ctx->MemRegion) {
564 uint64_t &CurOffset =593 uint64_t &CurOffset = Ctx->MemRegionOffset[Ctx->MemRegion];
565 CurAddressState->MemRegionOffset[CurAddressState->MemRegion];594 CurOffset += Pos - Before;
566 CurOffset += CurAddressState->OutSec->Size;595 uint64_t CurSize = CurOffset - Ctx->MemRegion->Origin;
567 uint64_t CurSize = CurOffset - CurAddressState->MemRegion->Origin;596 if (CurSize > Ctx->MemRegion->Length) {
568 if (CurSize > CurAddressState->MemRegion->Length) {597 uint64_t OverflowAmt = CurSize - Ctx->MemRegion->Length;
569 uint64_t OverflowAmt = CurSize - CurAddressState->MemRegion->Length;598 error("section '" + Ctx->OutSec->Name + "' will not fit in region '" +
570 error("section '" + CurAddressState->OutSec->Name +599 Ctx->MemRegion->Name + "': overflowed by " + Twine(OverflowAmt) +
571 "' will not fit in region '" + CurAddressState->MemRegion->Name +600 " bytes");
572 "': overflowed by " + Twine(OverflowAmt) + " bytes");
573 }601 }
574 }602 }
575}603}
576604
577void LinkerScript::switchTo(OutputSection *Sec) {605void LinkerScript::switchTo(OutputSection *Sec) {
578 if (CurAddressState->OutSec == Sec)606 if (Ctx->OutSec == Sec)
579 return;607 return;
580608
581 CurAddressState->OutSec = Sec;609 Ctx->OutSec = Sec;
582 CurAddressState->OutSec->Addr =610 Ctx->OutSec->Addr = advance(0, Ctx->OutSec->Alignment);
583 advance(0, CurAddressState->OutSec->Alignment);
584611
585 // If neither AT nor AT> is specified for an allocatable section, the linker612 // If neither AT nor AT> is specified for an allocatable section, the linker
586 // will set the LMA such that the difference between VMA and LMA for the613 // will set the LMA such that the difference between VMA and LMA for the
587 // section is the same as the preceding output section in the same region614 // section is the same as the preceding output section in the same region
588 // https://sourceware.org/binutils/docs-2.20/ld/Output-Section-LMA.html615 // https://sourceware.org/binutils/docs-2.20/ld/Output-Section-LMA.html
589 if (CurAddressState->LMAOffset)616 if (Ctx->LMAOffset)
590 CurAddressState->OutSec->LMAOffset = CurAddressState->LMAOffset();617 Ctx->OutSec->LMAOffset = Ctx->LMAOffset();
591}
592
593void LinkerScript::process(BaseCommand &Base) {
594 // This handles the assignments to symbol or to the dot.
595 if (auto *Cmd = dyn_cast<SymbolAssignment>(&Base)) {
596 assignSymbol(Cmd, true);
597 return;
598 }
599
600 // Handle BYTE(), SHORT(), LONG(), or QUAD().
601 if (auto *Cmd = dyn_cast<BytesDataCommand>(&Base)) {
602 Cmd->Offset = Dot - CurAddressState->OutSec->Addr;
603 Dot += Cmd->Size;
604 CurAddressState->OutSec->Size = Dot - CurAddressState->OutSec->Addr;
605 return;
606 }
607
608 // Handle ASSERT().
609 if (auto *Cmd = dyn_cast<AssertCommand>(&Base)) {
610 Cmd->Expression();
611 return;
612 }
613
614 // Handle a single input section description command.
615 // It calculates and assigns the offsets for each section and also
616 // updates the output section size.
617 auto &Cmd = cast<InputSectionDescription>(Base);
618 for (InputSection *Sec : Cmd.Sections) {
619 // We tentatively added all synthetic sections at the beginning and removed
620 // empty ones afterwards (because there is no way to know whether they were
621 // going be empty or not other than actually running linker scripts.)
622 // We need to ignore remains of empty sections.
623 if (auto *S = dyn_cast<SyntheticSection>(Sec))
624 if (S->empty())
625 continue;
626
627 if (!Sec->Live)
628 continue;
629 assert(CurAddressState->OutSec == Sec->getParent());
630 output(Sec);
631 }
632}618}
633619
634// This function searches for a memory region to place the given output620// This function searches for a memory region to place the given output
635// section in. If found, a pointer to the appropriate memory region is621// section in. If found, a pointer to the appropriate memory region is
636// returned. Otherwise, a nullptr is returned.622// returned. Otherwise, a nullptr is returned.
637MemoryRegion *LinkerScript::findMemoryRegion(OutputSectionCommand *Cmd) {623MemoryRegion *LinkerScript::findMemoryRegion(OutputSection *Sec) {
638 // If a memory region name was specified in the output section command,624 // If a memory region name was specified in the output section command,
639 // then try to find that region first.625 // then try to find that region first.
640 if (!Cmd->MemoryRegionName.empty()) {626 if (!Sec->MemoryRegionName.empty()) {
641 auto It = Opt.MemoryRegions.find(Cmd->MemoryRegionName);627 auto It = MemoryRegions.find(Sec->MemoryRegionName);
642 if (It != Opt.MemoryRegions.end())628 if (It != MemoryRegions.end())
643 return &It->second;629 return It->second;
644 error("memory region '" + Cmd->MemoryRegionName + "' not declared");630 error("memory region '" + Sec->MemoryRegionName + "' not declared");
645 return nullptr;631 return nullptr;
646 }632 }
647633
648 // If at least one memory region is defined, all sections must634 // If at least one memory region is defined, all sections must
649 // belong to some memory region. Otherwise, we don't need to do635 // belong to some memory region. Otherwise, we don't need to do
650 // anything for memory regions.636 // anything for memory regions.
651 if (Opt.MemoryRegions.empty())637 if (MemoryRegions.empty())
652 return nullptr;638 return nullptr;
653639
654 OutputSection *Sec = Cmd->Sec;
655 // See if a region can be found by matching section flags.640 // See if a region can be found by matching section flags.
656 for (auto &Pair : Opt.MemoryRegions) {641 for (auto &Pair : MemoryRegions) {
657 MemoryRegion &M = Pair.second;642 MemoryRegion *M = Pair.second;
658 if ((M.Flags & Sec->Flags) && (M.NegFlags & Sec->Flags) == 0)643 if ((M->Flags & Sec->Flags) && (M->NegFlags & Sec->Flags) == 0)
659 return &M;644 return M;
660 }645 }
661646
662 // Otherwise, no suitable region was found.647 // Otherwise, no suitable region was found.
...@@ -667,33 +652,73 @@ MemoryRegion *LinkerScript::findMemoryRegion(OutputSectionCommand *Cmd) {...@@ -667,33 +652,73 @@ MemoryRegion *LinkerScript::findMemoryRegion(OutputSectionCommand *Cmd) {
667652
668// This function assigns offsets to input sections and an output section653// This function assigns offsets to input sections and an output section
669// for a single sections command (e.g. ".text { *(.text); }").654// for a single sections command (e.g. ".text { *(.text); }").
670void LinkerScript::assignOffsets(OutputSectionCommand *Cmd) {655void LinkerScript::assignOffsets(OutputSection *Sec) {
671 OutputSection *Sec = Cmd->Sec;
672 if (!Sec)
673 return;
674
675 if (!(Sec->Flags & SHF_ALLOC))656 if (!(Sec->Flags & SHF_ALLOC))
676 Dot = 0;657 Dot = 0;
677 else if (Cmd->AddrExpr)658 else if (Sec->AddrExpr)
678 setDot(Cmd->AddrExpr, Cmd->Location, false);659 setDot(Sec->AddrExpr, Sec->Location, false);
679660
680 if (Cmd->LMAExpr) {661 Ctx->MemRegion = Sec->MemRegion;
662 if (Ctx->MemRegion)
663 Dot = Ctx->MemRegionOffset[Ctx->MemRegion];
664
665 if (Sec->LMAExpr) {
681 uint64_t D = Dot;666 uint64_t D = Dot;
682 CurAddressState->LMAOffset = [=] { return Cmd->LMAExpr().getValue() - D; };667 Ctx->LMAOffset = [=] { return Sec->LMAExpr().getValue() - D; };
683 }668 }
684669
685 CurAddressState->MemRegion = Cmd->MemRegion;
686 if (CurAddressState->MemRegion)
687 Dot = CurAddressState->MemRegionOffset[CurAddressState->MemRegion];
688 switchTo(Sec);670 switchTo(Sec);
689671
690 // We do not support custom layout for compressed debug sectons.672 // The Size previously denoted how many InputSections had been added to this
691 // At this point we already know their size and have compressed content.673 // section, and was used for sorting SHF_LINK_ORDER sections. Reset it to
692 if (CurAddressState->OutSec->Flags & SHF_COMPRESSED)674 // compute the actual size value.
693 return;675 Sec->Size = 0;
676
677 // We visited SectionsCommands from processSectionCommands to
678 // layout sections. Now, we visit SectionsCommands again to fix
679 // section offsets.
680 for (BaseCommand *Base : Sec->SectionCommands) {
681 // This handles the assignments to symbol or to the dot.
682 if (auto *Cmd = dyn_cast<SymbolAssignment>(Base)) {
683 assignSymbol(Cmd, true);
684 continue;
685 }
686
687 // Handle BYTE(), SHORT(), LONG(), or QUAD().
688 if (auto *Cmd = dyn_cast<ByteCommand>(Base)) {
689 Cmd->Offset = Dot - Ctx->OutSec->Addr;
690 Dot += Cmd->Size;
691 if (Ctx->MemRegion)
692 Ctx->MemRegionOffset[Ctx->MemRegion] += Cmd->Size;
693 Ctx->OutSec->Size = Dot - Ctx->OutSec->Addr;
694 continue;
695 }
696
697 // Handle ASSERT().
698 if (auto *Cmd = dyn_cast<AssertCommand>(Base)) {
699 Cmd->Expression();
700 continue;
701 }
694702
695 for (BaseCommand *C : Cmd->Commands)703 // Handle a single input section description command.
696 process(*C);704 // It calculates and assigns the offsets for each section and also
705 // updates the output section size.
706 auto *Cmd = cast<InputSectionDescription>(Base);
707 for (InputSection *Sec : Cmd->Sections) {
708 // We tentatively added all synthetic sections at the beginning and
709 // removed empty ones afterwards (because there is no way to know
710 // whether they were going be empty or not other than actually running
711 // linker scripts.) We need to ignore remains of empty sections.
712 if (auto *S = dyn_cast<SyntheticSection>(Sec))
713 if (S->empty())
714 continue;
715
716 if (!Sec->Live)
717 continue;
718 assert(Ctx->OutSec == Sec->getParent());
719 output(Sec);
720 }
721 }
697}722}
698723
699void LinkerScript::removeEmptyCommands() {724void LinkerScript::removeEmptyCommands() {
...@@ -703,17 +728,15 @@ void LinkerScript::removeEmptyCommands() {...@@ -703,17 +728,15 @@ void LinkerScript::removeEmptyCommands() {
703 // clutter the output.728 // clutter the output.
704 // We instead remove trivially empty sections. The bfd linker seems even729 // We instead remove trivially empty sections. The bfd linker seems even
705 // more aggressive at removing them.730 // more aggressive at removing them.
706 auto Pos = std::remove_if(731 llvm::erase_if(SectionCommands, [&](BaseCommand *Base) {
707 Opt.Commands.begin(), Opt.Commands.end(), [&](BaseCommand *Base) {732 if (auto *Sec = dyn_cast<OutputSection>(Base))
708 if (auto *Cmd = dyn_cast<OutputSectionCommand>(Base))733 return !Sec->Live;
709 return Cmd->Sec == nullptr;734 return false;
710 return false;735 });
711 });
712 Opt.Commands.erase(Pos, Opt.Commands.end());
713}736}
714737
715static bool isAllSectionDescription(const OutputSectionCommand &Cmd) {738static bool isAllSectionDescription(const OutputSection &Cmd) {
716 for (BaseCommand *Base : Cmd.Commands)739 for (BaseCommand *Base : Cmd.SectionCommands)
717 if (!isa<InputSectionDescription>(*Base))740 if (!isa<InputSectionDescription>(*Base))
718 return false;741 return false;
719 return true;742 return true;
...@@ -721,38 +744,55 @@ static bool isAllSectionDescription(const OutputSectionCommand &Cmd) {...@@ -721,38 +744,55 @@ static bool isAllSectionDescription(const OutputSectionCommand &Cmd) {
721744
722void LinkerScript::adjustSectionsBeforeSorting() {745void LinkerScript::adjustSectionsBeforeSorting() {
723 // If the output section contains only symbol assignments, create a746 // If the output section contains only symbol assignments, create a
724 // corresponding output section. The bfd linker seems to only create them if747 // corresponding output section. The issue is what to do with linker script
725 // '.' is assigned to, but creating these section should not have any bad748 // like ".foo : { symbol = 42; }". One option would be to convert it to
726 // consequeces and gives us a section to put the symbol in.749 // "symbol = 42;". That is, move the symbol out of the empty section
750 // description. That seems to be what bfd does for this simple case. The
751 // problem is that this is not completely general. bfd will give up and
752 // create a dummy section too if there is a ". = . + 1" inside the section
753 // for example.
754 // Given that we want to create the section, we have to worry what impact
755 // it will have on the link. For example, if we just create a section with
756 // 0 for flags, it would change which PT_LOADs are created.
757 // We could remember that that particular section is dummy and ignore it in
758 // other parts of the linker, but unfortunately there are quite a few places
759 // that would need to change:
760 // * The program header creation.
761 // * The orphan section placement.
762 // * The address assignment.
763 // The other option is to pick flags that minimize the impact the section
764 // will have on the rest of the linker. That is why we copy the flags from
765 // the previous sections. Only a few flags are needed to keep the impact low.
727 uint64_t Flags = SHF_ALLOC;766 uint64_t Flags = SHF_ALLOC;
728767
729 for (int I = 0, E = Opt.Commands.size(); I != E; ++I) {768 for (BaseCommand *Cmd : SectionCommands) {
730 auto *Cmd = dyn_cast<OutputSectionCommand>(Opt.Commands[I]);769 auto *Sec = dyn_cast<OutputSection>(Cmd);
731 if (!Cmd)770 if (!Sec)
732 continue;771 continue;
733 if (OutputSection *Sec = Cmd->Sec) {772 if (Sec->Live) {
734 Flags = Sec->Flags;773 Flags = Sec->Flags & (SHF_ALLOC | SHF_WRITE | SHF_EXECINSTR);
735 continue;774 continue;
736 }775 }
737776
738 if (isAllSectionDescription(*Cmd))777 if (isAllSectionDescription(*Sec))
739 continue;778 continue;
740779
741 auto *OutSec = make<OutputSection>(Cmd->Name, SHT_PROGBITS, Flags);780 Sec->Live = true;
742 OutSec->SectionIndex = I;781 Sec->Flags = Flags;
743 Cmd->Sec = OutSec;
744 SecToCommand[OutSec] = Cmd;
745 }782 }
746}783}
747784
748void LinkerScript::adjustSectionsAfterSorting() {785void LinkerScript::adjustSectionsAfterSorting() {
749 // Try and find an appropriate memory region to assign offsets in.786 // Try and find an appropriate memory region to assign offsets in.
750 for (BaseCommand *Base : Opt.Commands) {787 for (BaseCommand *Base : SectionCommands) {
751 if (auto *Cmd = dyn_cast<OutputSectionCommand>(Base)) {788 if (auto *Sec = dyn_cast<OutputSection>(Base)) {
752 Cmd->MemRegion = findMemoryRegion(Cmd);789 if (!Sec->Live)
790 continue;
791 Sec->MemRegion = findMemoryRegion(Sec);
753 // Handle align (e.g. ".foo : ALIGN(16) { ... }").792 // Handle align (e.g. ".foo : ALIGN(16) { ... }").
754 if (Cmd->AlignExpr && Cmd->Sec)793 if (Sec->AlignExpr)
755 Cmd->Sec->updateAlignment(Cmd->AlignExpr().getValue());794 Sec->Alignment =
795 std::max<uint32_t>(Sec->Alignment, Sec->AlignExpr().getValue());
756 }796 }
757 }797 }
758798
...@@ -764,108 +804,112 @@ void LinkerScript::adjustSectionsAfterSorting() {...@@ -764,108 +804,112 @@ void LinkerScript::adjustSectionsAfterSorting() {
764 // SECTIONS { .aaa : { *(.aaa) } }804 // SECTIONS { .aaa : { *(.aaa) } }
765 std::vector<StringRef> DefPhdrs;805 std::vector<StringRef> DefPhdrs;
766 auto FirstPtLoad =806 auto FirstPtLoad =
767 std::find_if(Opt.PhdrsCommands.begin(), Opt.PhdrsCommands.end(),807 std::find_if(PhdrsCommands.begin(), PhdrsCommands.end(),
768 [](const PhdrsCommand &Cmd) { return Cmd.Type == PT_LOAD; });808 [](const PhdrsCommand &Cmd) { return Cmd.Type == PT_LOAD; });
769 if (FirstPtLoad != Opt.PhdrsCommands.end())809 if (FirstPtLoad != PhdrsCommands.end())
770 DefPhdrs.push_back(FirstPtLoad->Name);810 DefPhdrs.push_back(FirstPtLoad->Name);
771811
772 // Walk the commands and propagate the program headers to commands that don't812 // Walk the commands and propagate the program headers to commands that don't
773 // explicitly specify them.813 // explicitly specify them.
774 for (BaseCommand *Base : Opt.Commands) {814 for (BaseCommand *Base : SectionCommands) {
775 auto *Cmd = dyn_cast<OutputSectionCommand>(Base);815 auto *Sec = dyn_cast<OutputSection>(Base);
776 if (!Cmd)816 if (!Sec)
777 continue;817 continue;
778818
779 if (Cmd->Phdrs.empty()) {819 if (Sec->Phdrs.empty()) {
780 OutputSection *Sec = Cmd->Sec;
781 // To match the bfd linker script behaviour, only propagate program820 // To match the bfd linker script behaviour, only propagate program
782 // headers to sections that are allocated.821 // headers to sections that are allocated.
783 if (Sec && (Sec->Flags & SHF_ALLOC))822 if (Sec->Flags & SHF_ALLOC)
784 Cmd->Phdrs = DefPhdrs;823 Sec->Phdrs = DefPhdrs;
785 } else {824 } else {
786 DefPhdrs = Cmd->Phdrs;825 DefPhdrs = Sec->Phdrs;
787 }826 }
788 }827 }
789
790 removeEmptyCommands();
791}828}
792829
793void LinkerScript::processNonSectionCommands() {830static OutputSection *findFirstSection(PhdrEntry *Load) {
794 for (BaseCommand *Base : Opt.Commands) {831 for (OutputSection *Sec : OutputSections)
795 if (auto *Cmd = dyn_cast<SymbolAssignment>(Base))832 if (Sec->PtLoad == Load)
796 assignSymbol(Cmd, false);833 return Sec;
797 else if (auto *Cmd = dyn_cast<AssertCommand>(Base))834 return nullptr;
798 Cmd->Expression();
799 }
800}835}
801836
802void LinkerScript::allocateHeaders(std::vector<PhdrEntry> &Phdrs) {837// Try to find an address for the file and program headers output sections,
838// which were unconditionally added to the first PT_LOAD segment earlier.
839//
840// When using the default layout, we check if the headers fit below the first
841// allocated section. When using a linker script, we also check if the headers
842// are covered by the output section. This allows omitting the headers by not
843// leaving enough space for them in the linker script; this pattern is common
844// in embedded systems.
845//
846// If there isn't enough space for these sections, we'll remove them from the
847// PT_LOAD segment, and we'll also remove the PT_PHDR segment.
848void LinkerScript::allocateHeaders(std::vector<PhdrEntry *> &Phdrs) {
803 uint64_t Min = std::numeric_limits<uint64_t>::max();849 uint64_t Min = std::numeric_limits<uint64_t>::max();
804 for (OutputSectionCommand *Cmd : OutputSectionCommands) {850 for (OutputSection *Sec : OutputSections)
805 OutputSection *Sec = Cmd->Sec;
806 if (Sec->Flags & SHF_ALLOC)851 if (Sec->Flags & SHF_ALLOC)
807 Min = std::min<uint64_t>(Min, Sec->Addr);852 Min = std::min<uint64_t>(Min, Sec->Addr);
808 }
809853
810 auto FirstPTLoad = llvm::find_if(854 auto It = llvm::find_if(
811 Phdrs, [](const PhdrEntry &E) { return E.p_type == PT_LOAD; });855 Phdrs, [](const PhdrEntry *E) { return E->p_type == PT_LOAD; });
812 if (FirstPTLoad == Phdrs.end())856 if (It == Phdrs.end())
813 return;857 return;
858 PhdrEntry *FirstPTLoad = *It;
814859
815 uint64_t HeaderSize = getHeaderSize();860 uint64_t HeaderSize = getHeaderSize();
816 if (HeaderSize <= Min || Script->hasPhdrsCommands()) {861 // When linker script with SECTIONS is being used, don't output headers
862 // unless there's a space for them.
863 uint64_t Base = HasSectionsCommand ? alignDown(Min, Config->MaxPageSize) : 0;
864 if (HeaderSize <= Min - Base || Script->hasPhdrsCommands()) {
817 Min = alignDown(Min - HeaderSize, Config->MaxPageSize);865 Min = alignDown(Min - HeaderSize, Config->MaxPageSize);
818 Out::ElfHeader->Addr = Min;866 Out::ElfHeader->Addr = Min;
819 Out::ProgramHeaders->Addr = Min + Out::ElfHeader->Size;867 Out::ProgramHeaders->Addr = Min + Out::ElfHeader->Size;
820 return;868 return;
821 }869 }
822870
823 assert(FirstPTLoad->First == Out::ElfHeader);871 Out::ElfHeader->PtLoad = nullptr;
824 OutputSection *ActualFirst = nullptr;872 Out::ProgramHeaders->PtLoad = nullptr;
825 for (OutputSectionCommand *Cmd : OutputSectionCommands) {873 FirstPTLoad->FirstSec = findFirstSection(FirstPTLoad);
826 OutputSection *Sec = Cmd->Sec;
827 if (Sec->FirstInPtLoad == Out::ElfHeader) {
828 ActualFirst = Sec;
829 break;
830 }
831 }
832 if (ActualFirst) {
833 for (OutputSectionCommand *Cmd : OutputSectionCommands) {
834 OutputSection *Sec = Cmd->Sec;
835 if (Sec->FirstInPtLoad == Out::ElfHeader)
836 Sec->FirstInPtLoad = ActualFirst;
837 }
838 FirstPTLoad->First = ActualFirst;
839 } else {
840 Phdrs.erase(FirstPTLoad);
841 }
842874
843 auto PhdrI = llvm::find_if(875 llvm::erase_if(Phdrs,
844 Phdrs, [](const PhdrEntry &E) { return E.p_type == PT_PHDR; });876 [](const PhdrEntry *E) { return E->p_type == PT_PHDR; });
845 if (PhdrI != Phdrs.end())
846 Phdrs.erase(PhdrI);
847}877}
848878
849LinkerScript::AddressState::AddressState(const ScriptConfiguration &Opt) {879LinkerScript::AddressState::AddressState() {
850 for (auto &MRI : Opt.MemoryRegions) {880 for (auto &MRI : Script->MemoryRegions) {
851 const MemoryRegion *MR = &MRI.second;881 const MemoryRegion *MR = MRI.second;
852 MemRegionOffset[MR] = MR->Origin;882 MemRegionOffset[MR] = MR->Origin;
853 }883 }
854}884}
855885
886static uint64_t getInitialDot() {
887 // By default linker scripts use an initial value of 0 for '.',
888 // but prefer -image-base if set.
889 if (Script->HasSectionsCommand)
890 return Config->ImageBase ? *Config->ImageBase : 0;
891
892 uint64_t StartAddr = UINT64_MAX;
893 // The Sections with -T<section> have been sorted in order of ascending
894 // address. We must lower StartAddr if the lowest -T<section address> as
895 // calls to setDot() must be monotonically increasing.
896 for (auto &KV : Config->SectionStartMap)
897 StartAddr = std::min(StartAddr, KV.second);
898 return std::min(StartAddr, Target->getImageBase() + elf::getHeaderSize());
899}
900
901// Here we assign addresses as instructed by linker script SECTIONS
902// sub-commands. Doing that allows us to use final VA values, so here
903// we also handle rest commands like symbol assignments and ASSERTs.
856void LinkerScript::assignAddresses() {904void LinkerScript::assignAddresses() {
857 // Assign addresses as instructed by linker script SECTIONS sub-commands.905 Dot = getInitialDot();
858 Dot = 0;906
859 auto State = make_unique<AddressState>(Opt);907 auto Deleter = make_unique<AddressState>();
860 // CurAddressState captures the local AddressState and makes it accessible908 Ctx = Deleter.get();
861 // deliberately. This is needed as there are some cases where we cannot just
862 // thread the current state through to a lambda function created by the
863 // script parser.
864 CurAddressState = State.get();
865 ErrorOnMissingSection = true;909 ErrorOnMissingSection = true;
866 switchTo(Aether);910 switchTo(Aether);
867911
868 for (BaseCommand *Base : Opt.Commands) {912 for (BaseCommand *Base : SectionCommands) {
869 if (auto *Cmd = dyn_cast<SymbolAssignment>(Base)) {913 if (auto *Cmd = dyn_cast<SymbolAssignment>(Base)) {
870 assignSymbol(Cmd, false);914 assignSymbol(Cmd, false);
871 continue;915 continue;
...@@ -876,380 +920,98 @@ void LinkerScript::assignAddresses() {...@@ -876,380 +920,98 @@ void LinkerScript::assignAddresses() {
876 continue;920 continue;
877 }921 }
878922
879 auto *Cmd = cast<OutputSectionCommand>(Base);923 assignOffsets(cast<OutputSection>(Base));
880 assignOffsets(Cmd);
881 }924 }
882 CurAddressState = nullptr;925 Ctx = nullptr;
883}926}
884927
885// Creates program headers as instructed by PHDRS linker script command.928// Creates program headers as instructed by PHDRS linker script command.
886std::vector<PhdrEntry> LinkerScript::createPhdrs() {929std::vector<PhdrEntry *> LinkerScript::createPhdrs() {
887 std::vector<PhdrEntry> Ret;930 std::vector<PhdrEntry *> Ret;
888931
889 // Process PHDRS and FILEHDR keywords because they are not932 // Process PHDRS and FILEHDR keywords because they are not
890 // real output sections and cannot be added in the following loop.933 // real output sections and cannot be added in the following loop.
891 for (const PhdrsCommand &Cmd : Opt.PhdrsCommands) {934 for (const PhdrsCommand &Cmd : PhdrsCommands) {
892 Ret.emplace_back(Cmd.Type, Cmd.Flags == UINT_MAX ? PF_R : Cmd.Flags);935 PhdrEntry *Phdr = make<PhdrEntry>(Cmd.Type, Cmd.Flags ? *Cmd.Flags : PF_R);
893 PhdrEntry &Phdr = Ret.back();
894936
895 if (Cmd.HasFilehdr)937 if (Cmd.HasFilehdr)
896 Phdr.add(Out::ElfHeader);938 Phdr->add(Out::ElfHeader);
897 if (Cmd.HasPhdrs)939 if (Cmd.HasPhdrs)
898 Phdr.add(Out::ProgramHeaders);940 Phdr->add(Out::ProgramHeaders);
899941
900 if (Cmd.LMAExpr) {942 if (Cmd.LMAExpr) {
901 Phdr.p_paddr = Cmd.LMAExpr().getValue();943 Phdr->p_paddr = Cmd.LMAExpr().getValue();
902 Phdr.HasLMA = true;944 Phdr->HasLMA = true;
903 }945 }
946 Ret.push_back(Phdr);
904 }947 }
905948
906 // Add output sections to program headers.949 // Add output sections to program headers.
907 for (OutputSectionCommand *Cmd : OutputSectionCommands) {950 for (OutputSection *Sec : OutputSections) {
908 // Assign headers specified by linker script951 // Assign headers specified by linker script
909 for (size_t Id : getPhdrIndices(Cmd)) {952 for (size_t Id : getPhdrIndices(Sec)) {
910 OutputSection *Sec = Cmd->Sec;953 Ret[Id]->add(Sec);
911 Ret[Id].add(Sec);954 if (!PhdrsCommands[Id].Flags.hasValue())
912 if (Opt.PhdrsCommands[Id].Flags == UINT_MAX)955 Ret[Id]->p_flags |= Sec->getPhdrFlags();
913 Ret[Id].p_flags |= Sec->getPhdrFlags();
914 }956 }
915 }957 }
916 return Ret;958 return Ret;
917}959}
918960
919bool LinkerScript::ignoreInterpSection() {961// Returns true if we should emit an .interp section.
920 // Ignore .interp section in case we have PHDRS specification
921 // and PT_INTERP isn't listed.
922 if (Opt.PhdrsCommands.empty())
923 return false;
924 for (PhdrsCommand &Cmd : Opt.PhdrsCommands)
925 if (Cmd.Type == PT_INTERP)
926 return false;
927 return true;
928}
929
930OutputSectionCommand *LinkerScript::getCmd(OutputSection *Sec) const {
931 auto I = SecToCommand.find(Sec);
932 if (I == SecToCommand.end())
933 return nullptr;
934 return I->second;
935}
936
937void OutputSectionCommand::sort(std::function<int(InputSectionBase *S)> Order) {
938 typedef std::pair<unsigned, InputSection *> Pair;
939 auto Comp = [](const Pair &A, const Pair &B) { return A.first < B.first; };
940
941 std::vector<Pair> V;
942 assert(Commands.size() == 1);
943 auto *ISD = cast<InputSectionDescription>(Commands[0]);
944 for (InputSection *S : ISD->Sections)
945 V.push_back({Order(S), S});
946 std::stable_sort(V.begin(), V.end(), Comp);
947 ISD->Sections.clear();
948 for (Pair &P : V)
949 ISD->Sections.push_back(P.second);
950}
951
952// Returns true if S matches /Filename.?\.o$/.
953static bool isCrtBeginEnd(StringRef S, StringRef Filename) {
954 if (!S.endswith(".o"))
955 return false;
956 S = S.drop_back(2);
957 if (S.endswith(Filename))
958 return true;
959 return !S.empty() && S.drop_back().endswith(Filename);
960}
961
962static bool isCrtbegin(StringRef S) { return isCrtBeginEnd(S, "crtbegin"); }
963static bool isCrtend(StringRef S) { return isCrtBeginEnd(S, "crtend"); }
964
965// .ctors and .dtors are sorted by this priority from highest to lowest.
966//
967// 1. The section was contained in crtbegin (crtbegin contains
968// some sentinel value in its .ctors and .dtors so that the runtime
969// can find the beginning of the sections.)
970//
971// 2. The section has an optional priority value in the form of ".ctors.N"
972// or ".dtors.N" where N is a number. Unlike .{init,fini}_array,
973// they are compared as string rather than number.
974//
975// 3. The section is just ".ctors" or ".dtors".
976//962//
977// 4. The section was contained in crtend, which contains an end marker.963// We usually do. But if PHDRS commands are given, and
978//964// no PT_INTERP is there, there's no place to emit an
979// In an ideal world, we don't need this function because .init_array and965// .interp, so we don't do that in that case.
980// .ctors are duplicate features (and .init_array is newer.) However, there966bool LinkerScript::needsInterpSection() {
981// are too many real-world use cases of .ctors, so we had no choice to967 if (PhdrsCommands.empty())
982// support that with this rather ad-hoc semantics.968 return true;
983static bool compCtors(const InputSection *A, const InputSection *B) {969 for (PhdrsCommand &Cmd : PhdrsCommands)
984 bool BeginA = isCrtbegin(A->File->getName());970 if (Cmd.Type == PT_INTERP)
985 bool BeginB = isCrtbegin(B->File->getName());971 return true;
986 if (BeginA != BeginB)972 return false;
987 return BeginA;
988 bool EndA = isCrtend(A->File->getName());
989 bool EndB = isCrtend(B->File->getName());
990 if (EndA != EndB)
991 return EndB;
992 StringRef X = A->Name;
993 StringRef Y = B->Name;
994 assert(X.startswith(".ctors") || X.startswith(".dtors"));
995 assert(Y.startswith(".ctors") || Y.startswith(".dtors"));
996 X = X.substr(6);
997 Y = Y.substr(6);
998 if (X.empty() && Y.empty())
999 return false;
1000 return X < Y;
1001}
1002
1003// Sorts input sections by the special rules for .ctors and .dtors.
1004// Unfortunately, the rules are different from the one for .{init,fini}_array.
1005// Read the comment above.
1006void OutputSectionCommand::sortCtorsDtors() {
1007 assert(Commands.size() == 1);
1008 auto *ISD = cast<InputSectionDescription>(Commands[0]);
1009 std::stable_sort(ISD->Sections.begin(), ISD->Sections.end(), compCtors);
1010}
1011
1012// Sorts input sections by section name suffixes, so that .foo.N comes
1013// before .foo.M if N < M. Used to sort .{init,fini}_array.N sections.
1014// We want to keep the original order if the priorities are the same
1015// because the compiler keeps the original initialization order in a
1016// translation unit and we need to respect that.
1017// For more detail, read the section of the GCC's manual about init_priority.
1018void OutputSectionCommand::sortInitFini() {
1019 // Sort sections by priority.
1020 sort([](InputSectionBase *S) { return getPriority(S->Name); });
1021}
1022
1023uint32_t OutputSectionCommand::getFiller() {
1024 if (Filler)
1025 return *Filler;
1026 if (Sec->Flags & SHF_EXECINSTR)
1027 return Target->TrapInstr;
1028 return 0;
1029}
1030
1031static void writeInt(uint8_t *Buf, uint64_t Data, uint64_t Size) {
1032 if (Size == 1)
1033 *Buf = Data;
1034 else if (Size == 2)
1035 write16(Buf, Data, Config->Endianness);
1036 else if (Size == 4)
1037 write32(Buf, Data, Config->Endianness);
1038 else if (Size == 8)
1039 write64(Buf, Data, Config->Endianness);
1040 else
1041 llvm_unreachable("unsupported Size argument");
1042}
1043
1044static bool compareByFilePosition(InputSection *A, InputSection *B) {
1045 // Synthetic doesn't have link order dependecy, stable_sort will keep it last
1046 if (A->kind() == InputSectionBase::Synthetic ||
1047 B->kind() == InputSectionBase::Synthetic)
1048 return false;
1049 InputSection *LA = A->getLinkOrderDep();
1050 InputSection *LB = B->getLinkOrderDep();
1051 OutputSection *AOut = LA->getParent();
1052 OutputSection *BOut = LB->getParent();
1053 if (AOut != BOut)
1054 return AOut->SectionIndex < BOut->SectionIndex;
1055 return LA->OutSecOff < LB->OutSecOff;
1056}
1057
1058template <class ELFT>
1059static void finalizeShtGroup(OutputSection *OS,
1060 ArrayRef<InputSection *> Sections) {
1061 assert(Config->Relocatable && Sections.size() == 1);
1062
1063 // sh_link field for SHT_GROUP sections should contain the section index of
1064 // the symbol table.
1065 OS->Link = InX::SymTab->getParent()->SectionIndex;
1066
1067 // sh_info then contain index of an entry in symbol table section which
1068 // provides signature of the section group.
1069 elf::ObjectFile<ELFT> *Obj = Sections[0]->getFile<ELFT>();
1070 ArrayRef<SymbolBody *> Symbols = Obj->getSymbols();
1071 OS->Info = InX::SymTab->getSymbolIndex(Symbols[Sections[0]->Info - 1]);
1072}973}
1073974
1074template <class ELFT> void OutputSectionCommand::finalize() {975ExprValue LinkerScript::getSymbolValue(StringRef Name, const Twine &Loc) {
1075 // Link order may be distributed across several InputSectionDescriptions976 if (Name == ".") {
1076 // but sort must consider them all at once.977 if (Ctx)
1077 std::vector<InputSection **> ScriptSections;978 return {Ctx->OutSec, false, Dot - Ctx->OutSec->Addr, Loc};
1078 std::vector<InputSection *> Sections;979 error(Loc + ": unable to get location counter value");
1079 for (BaseCommand *Base : Commands)980 return 0;
1080 if (auto *ISD = dyn_cast<InputSectionDescription>(Base))
1081 for (InputSection *&IS : ISD->Sections) {
1082 ScriptSections.push_back(&IS);
1083 Sections.push_back(IS);
1084 }
1085
1086 if ((Sec->Flags & SHF_LINK_ORDER)) {
1087 std::stable_sort(Sections.begin(), Sections.end(), compareByFilePosition);
1088 for (int I = 0, N = Sections.size(); I < N; ++I)
1089 *ScriptSections[I] = Sections[I];
1090
1091 // We must preserve the link order dependency of sections with the
1092 // SHF_LINK_ORDER flag. The dependency is indicated by the sh_link field. We
1093 // need to translate the InputSection sh_link to the OutputSection sh_link,
1094 // all InputSections in the OutputSection have the same dependency.
1095 if (auto *D = Sections.front()->getLinkOrderDep())
1096 Sec->Link = D->getParent()->SectionIndex;
1097 }981 }
1098982
1099 uint32_t Type = Sec->Type;983 if (Symbol *Sym = Symtab->find(Name)) {
1100 if (Type == SHT_GROUP) {984 if (auto *DS = dyn_cast<Defined>(Sym))
1101 finalizeShtGroup<ELFT>(Sec, Sections);985 return {DS->Section, false, DS->Value, Loc};
1102 return;986 if (auto *SS = dyn_cast<SharedSymbol>(Sym))
1103 }987 if (!ErrorOnMissingSection || SS->CopyRelSec)
1104988 return {SS->CopyRelSec, false, 0, Loc};
1105 if (!Config->CopyRelocs || (Type != SHT_RELA && Type != SHT_REL))
1106 return;
1107
1108 InputSection *First = Sections[0];
1109 if (isa<SyntheticSection>(First))
1110 return;
1111
1112 Sec->Link = InX::SymTab->getParent()->SectionIndex;
1113 // sh_info for SHT_REL[A] sections should contain the section header index of
1114 // the section to which the relocation applies.
1115 InputSectionBase *S = First->getRelocatedSection();
1116 Sec->Info = S->getOutputSection()->SectionIndex;
1117 Sec->Flags |= SHF_INFO_LINK;
1118}
1119
1120// Compress section contents if this section contains debug info.
1121template <class ELFT> void OutputSectionCommand::maybeCompress() {
1122 typedef typename ELFT::Chdr Elf_Chdr;
1123
1124 // Compress only DWARF debug sections.
1125 if (!Config->CompressDebugSections || (Sec->Flags & SHF_ALLOC) ||
1126 !Name.startswith(".debug_"))
1127 return;
1128
1129 // Create a section header.
1130 Sec->ZDebugHeader.resize(sizeof(Elf_Chdr));
1131 auto *Hdr = reinterpret_cast<Elf_Chdr *>(Sec->ZDebugHeader.data());
1132 Hdr->ch_type = ELFCOMPRESS_ZLIB;
1133 Hdr->ch_size = Sec->Size;
1134 Hdr->ch_addralign = Sec->Alignment;
1135
1136 // Write section contents to a temporary buffer and compress it.
1137 std::vector<uint8_t> Buf(Sec->Size);
1138 writeTo<ELFT>(Buf.data());
1139 if (Error E = zlib::compress(toStringRef(Buf), Sec->CompressedData))
1140 fatal("compress failed: " + llvm::toString(std::move(E)));
1141
1142 // Update section headers.
1143 Sec->Size = sizeof(Elf_Chdr) + Sec->CompressedData.size();
1144 Sec->Flags |= SHF_COMPRESSED;
1145}
1146
1147template <class ELFT> void OutputSectionCommand::writeTo(uint8_t *Buf) {
1148 if (Sec->Type == SHT_NOBITS)
1149 return;
1150
1151 Sec->Loc = Buf;
1152
1153 // If -compress-debug-section is specified and if this is a debug seciton,
1154 // we've already compressed section contents. If that's the case,
1155 // just write it down.
1156 if (!Sec->CompressedData.empty()) {
1157 memcpy(Buf, Sec->ZDebugHeader.data(), Sec->ZDebugHeader.size());
1158 memcpy(Buf + Sec->ZDebugHeader.size(), Sec->CompressedData.data(),
1159 Sec->CompressedData.size());
1160 return;
1161 }989 }
1162990
1163 // Write leading padding.991 error(Loc + ": symbol not found: " + Name);
1164 std::vector<InputSection *> Sections;
1165 for (BaseCommand *Cmd : Commands)
1166 if (auto *ISD = dyn_cast<InputSectionDescription>(Cmd))
1167 for (InputSection *IS : ISD->Sections)
1168 if (IS->Live)
1169 Sections.push_back(IS);
1170 uint32_t Filler = getFiller();
1171 if (Filler)
1172 fill(Buf, Sections.empty() ? Sec->Size : Sections[0]->OutSecOff, Filler);
1173
1174 parallelForEachN(0, Sections.size(), [=](size_t I) {
1175 InputSection *IS = Sections[I];
1176 IS->writeTo<ELFT>(Buf);
1177
1178 // Fill gaps between sections.
1179 if (Filler) {
1180 uint8_t *Start = Buf + IS->OutSecOff + IS->getSize();
1181 uint8_t *End;
1182 if (I + 1 == Sections.size())
1183 End = Buf + Sec->Size;
1184 else
1185 End = Buf + Sections[I + 1]->OutSecOff;
1186 fill(Start, End - Start, Filler);
1187 }
1188 });
1189
1190 // Linker scripts may have BYTE()-family commands with which you
1191 // can write arbitrary bytes to the output. Process them if any.
1192 for (BaseCommand *Base : Commands)
1193 if (auto *Data = dyn_cast<BytesDataCommand>(Base))
1194 writeInt(Buf + Data->Offset, Data->Expression().getValue(), Data->Size);
1195}
1196
1197ExprValue LinkerScript::getSymbolValue(const Twine &Loc, StringRef S) {
1198 if (S == ".")
1199 return {CurAddressState->OutSec, Dot - CurAddressState->OutSec->Addr, Loc};
1200 if (SymbolBody *B = findSymbol(S)) {
1201 if (auto *D = dyn_cast<DefinedRegular>(B))
1202 return {D->Section, D->Value, Loc};
1203 if (auto *C = dyn_cast<DefinedCommon>(B))
1204 return {InX::Common, C->Offset, Loc};
1205 }
1206 error(Loc + ": symbol not found: " + S);
1207 return 0;992 return 0;
1208}993}
1209994
1210bool LinkerScript::isDefined(StringRef S) { return findSymbol(S) != nullptr; }995// Returns the index of the segment named Name.
1211996static Optional<size_t> getPhdrIndex(ArrayRef<PhdrsCommand> Vec,
1212static const size_t NoPhdr = -1;997 StringRef Name) {
998 for (size_t I = 0; I < Vec.size(); ++I)
999 if (Vec[I].Name == Name)
1000 return I;
1001 return None;
1002}
12131003
1214// Returns indices of ELF headers containing specific section. Each index is a1004// Returns indices of ELF headers containing specific section. Each index is a
1215// zero based number of ELF header listed within PHDRS {} script block.1005// zero based number of ELF header listed within PHDRS {} script block.
1216std::vector<size_t> LinkerScript::getPhdrIndices(OutputSectionCommand *Cmd) {1006std::vector<size_t> LinkerScript::getPhdrIndices(OutputSection *Cmd) {
1217 std::vector<size_t> Ret;1007 std::vector<size_t> Ret;
1218 for (StringRef PhdrName : Cmd->Phdrs) {
1219 size_t Index = getPhdrIndex(Cmd->Location, PhdrName);
1220 if (Index != NoPhdr)
1221 Ret.push_back(Index);
1222 }
1223 return Ret;
1224}
12251008
1226// Returns the index of the segment named PhdrName if found otherwise1009 for (StringRef S : Cmd->Phdrs) {
1227// NoPhdr. When not found, if PhdrName is not the special case value 'NONE'1010 if (Optional<size_t> Idx = getPhdrIndex(PhdrsCommands, S))
1228// (which can be used to explicitly specify that a section isn't assigned to a1011 Ret.push_back(*Idx);
1229// segment) then error.1012 else if (S != "NONE")
1230size_t LinkerScript::getPhdrIndex(const Twine &Loc, StringRef PhdrName) {1013 error(Cmd->Location + ": section header '" + S +
1231 size_t I = 0;1014 "' is not listed in PHDRS");
1232 for (PhdrsCommand &Cmd : Opt.PhdrsCommands) {
1233 if (Cmd.Name == PhdrName)
1234 return I;
1235 ++I;
1236 }1015 }
1237 if (PhdrName != "NONE")1016 return Ret;
1238 error(Loc + ": section header '" + PhdrName + "' is not listed in PHDRS");
1239 return NoPhdr;
1240}1017}
1241
1242template void OutputSectionCommand::writeTo<ELF32LE>(uint8_t *Buf);
1243template void OutputSectionCommand::writeTo<ELF32BE>(uint8_t *Buf);
1244template void OutputSectionCommand::writeTo<ELF64LE>(uint8_t *Buf);
1245template void OutputSectionCommand::writeTo<ELF64BE>(uint8_t *Buf);
1246
1247template void OutputSectionCommand::maybeCompress<ELF32LE>();
1248template void OutputSectionCommand::maybeCompress<ELF32BE>();
1249template void OutputSectionCommand::maybeCompress<ELF64LE>();
1250template void OutputSectionCommand::maybeCompress<ELF64BE>();
1251
1252template void OutputSectionCommand::finalize<ELF32LE>();
1253template void OutputSectionCommand::finalize<ELF32BE>();
1254template void OutputSectionCommand::finalize<ELF64LE>();
1255template void OutputSectionCommand::finalize<ELF64BE>();
deps/lld/ELF/LinkerScript.h+98-113
...@@ -13,10 +13,11 @@...@@ -13,10 +13,11 @@
13#include "Config.h"13#include "Config.h"
14#include "Strings.h"14#include "Strings.h"
15#include "Writer.h"15#include "Writer.h"
16#include "lld/Core/LLVM.h"16#include "lld/Common/LLVM.h"
17#include "llvm/ADT/ArrayRef.h"17#include "llvm/ADT/ArrayRef.h"
18#include "llvm/ADT/DenseMap.h"18#include "llvm/ADT/DenseMap.h"
19#include "llvm/ADT/DenseSet.h"19#include "llvm/ADT/DenseSet.h"
20#include "llvm/ADT/MapVector.h"
20#include "llvm/ADT/StringRef.h"21#include "llvm/ADT/StringRef.h"
21#include "llvm/Support/MemoryBuffer.h"22#include "llvm/Support/MemoryBuffer.h"
22#include <cstddef>23#include <cstddef>
...@@ -28,31 +29,39 @@...@@ -28,31 +29,39 @@
28namespace lld {29namespace lld {
29namespace elf {30namespace elf {
3031
31class DefinedCommon;32class Defined;
32class SymbolBody;33class Symbol;
33class InputSectionBase;34class InputSectionBase;
34class InputSection;35class InputSection;
35class OutputSection;36class OutputSection;
36class OutputSectionFactory;
37class InputSectionBase;37class InputSectionBase;
38class SectionBase;38class SectionBase;
3939
40// This represents an r-value in the linker script.
40struct ExprValue {41struct ExprValue {
41 SectionBase *Sec;
42 uint64_t Val;
43 bool ForceAbsolute;
44 uint64_t Alignment = 1;
45 std::string Loc;
46
47 ExprValue(SectionBase *Sec, bool ForceAbsolute, uint64_t Val,42 ExprValue(SectionBase *Sec, bool ForceAbsolute, uint64_t Val,
48 const Twine &Loc)43 const Twine &Loc)
49 : Sec(Sec), Val(Val), ForceAbsolute(ForceAbsolute), Loc(Loc.str()) {}44 : Sec(Sec), ForceAbsolute(ForceAbsolute), Val(Val), Loc(Loc.str()) {}
50 ExprValue(SectionBase *Sec, uint64_t Val, const Twine &Loc)45
51 : ExprValue(Sec, false, Val, Loc) {}46 ExprValue(uint64_t Val) : ExprValue(nullptr, false, Val, "") {}
52 ExprValue(uint64_t Val) : ExprValue(nullptr, Val, "") {}47
53 bool isAbsolute() const { return ForceAbsolute || Sec == nullptr; }48 bool isAbsolute() const { return ForceAbsolute || Sec == nullptr; }
54 uint64_t getValue() const;49 uint64_t getValue() const;
55 uint64_t getSecAddr() const;50 uint64_t getSecAddr() const;
51 uint64_t getSectionOffset() const;
52
53 // If a value is relative to a section, it has a non-null Sec.
54 SectionBase *Sec;
55
56 // True if this expression is enclosed in ABSOLUTE().
57 // This flag affects the return value of getValue().
58 bool ForceAbsolute;
59
60 uint64_t Val;
61 uint64_t Alignment = 1;
62
63 // Original source location. Used for error messages.
64 std::string Loc;
56};65};
5766
58// This represents an expression in the linker script.67// This represents an expression in the linker script.
...@@ -66,8 +75,8 @@ enum SectionsCommandKind {...@@ -66,8 +75,8 @@ enum SectionsCommandKind {
66 AssignmentKind, // . = expr or <sym> = expr75 AssignmentKind, // . = expr or <sym> = expr
67 OutputSectionKind,76 OutputSectionKind,
68 InputSectionKind,77 InputSectionKind,
69 AssertKind, // ASSERT(expr)78 AssertKind, // ASSERT(expr)
70 BytesDataKind // BYTE(expr), SHORT(expr), LONG(expr) or QUAD(expr)79 ByteKind // BYTE(expr), SHORT(expr), LONG(expr) or QUAD(expr)
71};80};
7281
73struct BaseCommand {82struct BaseCommand {
...@@ -80,11 +89,13 @@ struct SymbolAssignment : BaseCommand {...@@ -80,11 +89,13 @@ struct SymbolAssignment : BaseCommand {
80 SymbolAssignment(StringRef Name, Expr E, std::string Loc)89 SymbolAssignment(StringRef Name, Expr E, std::string Loc)
81 : BaseCommand(AssignmentKind), Name(Name), Expression(E), Location(Loc) {}90 : BaseCommand(AssignmentKind), Name(Name), Expression(E), Location(Loc) {}
8291
83 static bool classof(const BaseCommand *C);92 static bool classof(const BaseCommand *C) {
93 return C->Kind == AssignmentKind;
94 }
8495
85 // The LHS of an expression. Name is either a symbol name or ".".96 // The LHS of an expression. Name is either a symbol name or ".".
86 StringRef Name;97 StringRef Name;
87 SymbolBody *Sym = nullptr;98 Defined *Sym = nullptr;
8899
89 // The RHS of an expression.100 // The RHS of an expression.
90 Expr Expression;101 Expr Expression;
...@@ -114,37 +125,6 @@ struct MemoryRegion {...@@ -114,37 +125,6 @@ struct MemoryRegion {
114 uint32_t NegFlags;125 uint32_t NegFlags;
115};126};
116127
117struct OutputSectionCommand : BaseCommand {
118 OutputSectionCommand(StringRef Name)
119 : BaseCommand(OutputSectionKind), Name(Name) {}
120
121 static bool classof(const BaseCommand *C);
122
123 OutputSection *Sec = nullptr;
124 MemoryRegion *MemRegion = nullptr;
125 StringRef Name;
126 Expr AddrExpr;
127 Expr AlignExpr;
128 Expr LMAExpr;
129 Expr SubalignExpr;
130 std::vector<BaseCommand *> Commands;
131 std::vector<StringRef> Phdrs;
132 llvm::Optional<uint32_t> Filler;
133 ConstraintKind Constraint = ConstraintKind::NoConstraint;
134 std::string Location;
135 std::string MemoryRegionName;
136 bool Noload = false;
137
138 template <class ELFT> void finalize();
139 template <class ELFT> void writeTo(uint8_t *Buf);
140 template <class ELFT> void maybeCompress();
141 uint32_t getFiller();
142
143 void sort(std::function<int(InputSectionBase *S)> Order);
144 void sortInitFini();
145 void sortCtorsDtors();
146};
147
148// This struct represents one section match pattern in SECTIONS() command.128// This struct represents one section match pattern in SECTIONS() command.
149// It can optionally have negative match pattern for EXCLUDED_FILE command.129// It can optionally have negative match pattern for EXCLUDED_FILE command.
150// Also it may be surrounded with SORT() command, so contains sorting rules.130// Also it may be surrounded with SORT() command, so contains sorting rules.
...@@ -158,11 +138,14 @@ struct SectionPattern {...@@ -158,11 +138,14 @@ struct SectionPattern {
158 SortSectionPolicy SortInner;138 SortSectionPolicy SortInner;
159};139};
160140
141class ThunkSection;
161struct InputSectionDescription : BaseCommand {142struct InputSectionDescription : BaseCommand {
162 InputSectionDescription(StringRef FilePattern)143 InputSectionDescription(StringRef FilePattern)
163 : BaseCommand(InputSectionKind), FilePat(FilePattern) {}144 : BaseCommand(InputSectionKind), FilePat(FilePattern) {}
164145
165 static bool classof(const BaseCommand *C);146 static bool classof(const BaseCommand *C) {
147 return C->Kind == InputSectionKind;
148 }
166149
167 StringMatcher FilePat;150 StringMatcher FilePat;
168151
...@@ -171,23 +154,28 @@ struct InputSectionDescription : BaseCommand {...@@ -171,23 +154,28 @@ struct InputSectionDescription : BaseCommand {
171 std::vector<SectionPattern> SectionPatterns;154 std::vector<SectionPattern> SectionPatterns;
172155
173 std::vector<InputSection *> Sections;156 std::vector<InputSection *> Sections;
157
158 // Temporary record of synthetic ThunkSection instances and the pass that
159 // they were created in. This is used to insert newly created ThunkSections
160 // into Sections at the end of a createThunks() pass.
161 std::vector<std::pair<ThunkSection *, uint32_t>> ThunkSections;
174};162};
175163
176// Represents an ASSERT().164// Represents an ASSERT().
177struct AssertCommand : BaseCommand {165struct AssertCommand : BaseCommand {
178 AssertCommand(Expr E) : BaseCommand(AssertKind), Expression(E) {}166 AssertCommand(Expr E) : BaseCommand(AssertKind), Expression(E) {}
179167
180 static bool classof(const BaseCommand *C);168 static bool classof(const BaseCommand *C) { return C->Kind == AssertKind; }
181169
182 Expr Expression;170 Expr Expression;
183};171};
184172
185// Represents BYTE(), SHORT(), LONG(), or QUAD().173// Represents BYTE(), SHORT(), LONG(), or QUAD().
186struct BytesDataCommand : BaseCommand {174struct ByteCommand : BaseCommand {
187 BytesDataCommand(Expr E, unsigned Size)175 ByteCommand(Expr E, unsigned Size)
188 : BaseCommand(BytesDataKind), Expression(E), Size(Size) {}176 : BaseCommand(ByteKind), Expression(E), Size(Size) {}
189177
190 static bool classof(const BaseCommand *C);178 static bool classof(const BaseCommand *C) { return C->Kind == ByteKind; }
191179
192 Expr Expression;180 Expr Expression;
193 unsigned Offset;181 unsigned Offset;
...@@ -196,106 +184,103 @@ struct BytesDataCommand : BaseCommand {...@@ -196,106 +184,103 @@ struct BytesDataCommand : BaseCommand {
196184
197struct PhdrsCommand {185struct PhdrsCommand {
198 StringRef Name;186 StringRef Name;
199 unsigned Type;187 unsigned Type = llvm::ELF::PT_NULL;
200 bool HasFilehdr;188 bool HasFilehdr = false;
201 bool HasPhdrs;189 bool HasPhdrs = false;
202 unsigned Flags;190 llvm::Optional<unsigned> Flags;
203 Expr LMAExpr;191 Expr LMAExpr = nullptr;
204};
205
206// ScriptConfiguration holds linker script parse results.
207struct ScriptConfiguration {
208 // Used to assign addresses to sections.
209 std::vector<BaseCommand *> Commands;
210
211 // Used to assign sections to headers.
212 std::vector<PhdrsCommand> PhdrsCommands;
213
214 bool HasSections = false;
215
216 // List of section patterns specified with KEEP commands. They will
217 // be kept even if they are unused and --gc-sections is specified.
218 std::vector<InputSectionDescription *> KeptSections;
219
220 // A map from memory region name to a memory region descriptor.
221 llvm::DenseMap<llvm::StringRef, MemoryRegion> MemoryRegions;
222
223 // A list of symbols referenced by the script.
224 std::vector<llvm::StringRef> ReferencedSymbols;
225};192};
226193
227class LinkerScript final {194class LinkerScript final {
228 // Temporary state used in processCommands() and assignAddresses()195 // Temporary state used in processSectionCommands() and assignAddresses()
229 // that must be reinitialized for each call to the above functions, and must196 // that must be reinitialized for each call to the above functions, and must
230 // not be used outside of the scope of a call to the above functions.197 // not be used outside of the scope of a call to the above functions.
231 struct AddressState {198 struct AddressState {
199 AddressState();
232 uint64_t ThreadBssOffset = 0;200 uint64_t ThreadBssOffset = 0;
233 OutputSection *OutSec = nullptr;201 OutputSection *OutSec = nullptr;
234 MemoryRegion *MemRegion = nullptr;202 MemoryRegion *MemRegion = nullptr;
235 llvm::DenseMap<const MemoryRegion *, uint64_t> MemRegionOffset;203 llvm::DenseMap<const MemoryRegion *, uint64_t> MemRegionOffset;
236 std::function<uint64_t()> LMAOffset;204 std::function<uint64_t()> LMAOffset;
237 AddressState(const ScriptConfiguration &Opt);
238 };205 };
239 llvm::DenseMap<OutputSection *, OutputSectionCommand *> SecToCommand;
240 llvm::DenseMap<StringRef, OutputSectionCommand *> NameToOutputSectionCommand;
241206
207 llvm::DenseMap<StringRef, OutputSection *> NameToOutputSection;
208
209 void addSymbol(SymbolAssignment *Cmd);
242 void assignSymbol(SymbolAssignment *Cmd, bool InSec);210 void assignSymbol(SymbolAssignment *Cmd, bool InSec);
243 void setDot(Expr E, const Twine &Loc, bool InSec);211 void setDot(Expr E, const Twine &Loc, bool InSec);
244212
245 std::vector<InputSection *>213 std::vector<InputSection *>
246 computeInputSections(const InputSectionDescription *);214 computeInputSections(const InputSectionDescription *,
215 const llvm::DenseMap<SectionBase *, int> &Order);
247216
248 std::vector<InputSectionBase *>217 std::vector<InputSection *>
249 createInputSectionList(OutputSectionCommand &Cmd);218 createInputSectionList(OutputSection &Cmd,
219 const llvm::DenseMap<SectionBase *, int> &Order);
250220
251 std::vector<size_t> getPhdrIndices(OutputSectionCommand *Cmd);221 std::vector<size_t> getPhdrIndices(OutputSection *Sec);
252 size_t getPhdrIndex(const Twine &Loc, StringRef PhdrName);
253222
254 MemoryRegion *findMemoryRegion(OutputSectionCommand *Cmd);223 MemoryRegion *findMemoryRegion(OutputSection *Sec);
255224
256 void switchTo(OutputSection *Sec);225 void switchTo(OutputSection *Sec);
257 uint64_t advance(uint64_t Size, unsigned Align);226 uint64_t advance(uint64_t Size, unsigned Align);
258 void output(InputSection *Sec);227 void output(InputSection *Sec);
259 void process(BaseCommand &Base);
260228
261 AddressState *CurAddressState = nullptr;229 void assignOffsets(OutputSection *Sec);
230
231 // Ctx captures the local AddressState and makes it accessible
232 // deliberately. This is needed as there are some cases where we cannot just
233 // thread the current state through to a lambda function created by the
234 // script parser.
235 // This should remain a plain pointer as its lifetime is smaller than
236 // LinkerScript.
237 AddressState *Ctx = nullptr;
238
262 OutputSection *Aether;239 OutputSection *Aether;
263240
264 uint64_t Dot;241 uint64_t Dot;
265242
266public:243public:
267 bool ErrorOnMissingSection = false;244 OutputSection *createOutputSection(StringRef Name, StringRef Location);
268 OutputSectionCommand *createOutputSectionCommand(StringRef Name,245 OutputSection *getOrCreateOutputSection(StringRef Name);
269 StringRef Location);
270 OutputSectionCommand *getOrCreateOutputSectionCommand(StringRef Name);
271246
272 OutputSectionCommand *getCmd(OutputSection *Sec) const;247 bool hasPhdrsCommands() { return !PhdrsCommands.empty(); }
273 bool hasPhdrsCommands() { return !Opt.PhdrsCommands.empty(); }
274 uint64_t getDot() { return Dot; }248 uint64_t getDot() { return Dot; }
275 void discard(ArrayRef<InputSectionBase *> V);249 void discard(ArrayRef<InputSection *> V);
276250
277 ExprValue getSymbolValue(const Twine &Loc, StringRef S);251 ExprValue getSymbolValue(StringRef Name, const Twine &Loc);
278 bool isDefined(StringRef S);
279252
280 void fabricateDefaultCommands();253 void addOrphanSections();
281 void addOrphanSections(OutputSectionFactory &Factory);
282 void removeEmptyCommands();254 void removeEmptyCommands();
283 void adjustSectionsBeforeSorting();255 void adjustSectionsBeforeSorting();
284 void adjustSectionsAfterSorting();256 void adjustSectionsAfterSorting();
285257
286 std::vector<PhdrEntry> createPhdrs();258 std::vector<PhdrEntry *> createPhdrs();
287 bool ignoreInterpSection();259 bool needsInterpSection();
288260
289 bool shouldKeep(InputSectionBase *S);261 bool shouldKeep(InputSectionBase *S);
290 void assignOffsets(OutputSectionCommand *Cmd);
291 void processNonSectionCommands();
292 void assignAddresses();262 void assignAddresses();
293 void allocateHeaders(std::vector<PhdrEntry> &Phdrs);263 void allocateHeaders(std::vector<PhdrEntry *> &Phdrs);
294 void addSymbol(SymbolAssignment *Cmd);264 void processSectionCommands();
295 void processCommands(OutputSectionFactory &Factory);265
266 // SECTIONS command list.
267 std::vector<BaseCommand *> SectionCommands;
268
269 // PHDRS command list.
270 std::vector<PhdrsCommand> PhdrsCommands;
271
272 bool HasSectionsCommand = false;
273 bool ErrorOnMissingSection = false;
296274
297 // Parsed linker script configurations are set to this struct.275 // List of section patterns specified with KEEP commands. They will
298 ScriptConfiguration Opt;276 // be kept even if they are unused and --gc-sections is specified.
277 std::vector<InputSectionDescription *> KeptSections;
278
279 // A map from memory region name to a memory region descriptor.
280 llvm::MapVector<llvm::StringRef, MemoryRegion *> MemoryRegions;
281
282 // A list of symbols referenced by the script.
283 std::vector<llvm::StringRef> ReferencedSymbols;
299};284};
300285
301extern LinkerScript *Script;286extern LinkerScript *Script;
deps/lld/ELF/MapFile.cpp+49-46
...@@ -25,8 +25,9 @@...@@ -25,8 +25,9 @@
25#include "OutputSections.h"25#include "OutputSections.h"
26#include "Strings.h"26#include "Strings.h"
27#include "SymbolTable.h"27#include "SymbolTable.h"
28#include "Threads.h"28#include "Symbols.h"
2929#include "SyntheticSections.h"
30#include "lld/Common/Threads.h"
30#include "llvm/Support/raw_ostream.h"31#include "llvm/Support/raw_ostream.h"
3132
32using namespace llvm;33using namespace llvm;
...@@ -35,46 +36,57 @@ using namespace llvm::object;...@@ -35,46 +36,57 @@ using namespace llvm::object;
35using namespace lld;36using namespace lld;
36using namespace lld::elf;37using namespace lld::elf;
3738
38typedef DenseMap<const SectionBase *, SmallVector<DefinedRegular *, 4>>39typedef DenseMap<const SectionBase *, SmallVector<Symbol *, 4>> SymbolMapTy;
39 SymbolMapTy;
4040
41// Print out the first three columns of a line.41// Print out the first three columns of a line.
42template <class ELFT>
43static void writeHeader(raw_ostream &OS, uint64_t Addr, uint64_t Size,42static void writeHeader(raw_ostream &OS, uint64_t Addr, uint64_t Size,
44 uint64_t Align) {43 uint64_t Align) {
45 int W = ELFT::Is64Bits ? 16 : 8;44 int W = Config->Is64 ? 16 : 8;
46 OS << format("%0*llx %0*llx %5lld ", W, Addr, W, Size, Align);45 OS << format("%0*llx %0*llx %5lld ", W, Addr, W, Size, Align);
47}46}
4847
49static std::string indent(int Depth) { return std::string(Depth * 8, ' '); }48static std::string indent(int Depth) { return std::string(Depth * 8, ' '); }
5049
51// Returns a list of all symbols that we want to print out.50// Returns a list of all symbols that we want to print out.
52template <class ELFT> std::vector<DefinedRegular *> getSymbols() {51static std::vector<Symbol *> getSymbols() {
53 std::vector<DefinedRegular *> V;52 std::vector<Symbol *> V;
54 for (elf::ObjectFile<ELFT> *File : Symtab<ELFT>::X->getObjectFiles())53 for (InputFile *File : ObjectFiles) {
55 for (SymbolBody *B : File->getSymbols())54 for (Symbol *B : File->getSymbols()) {
56 if (B->File == File && !B->isSection())55 if (auto *SS = dyn_cast<SharedSymbol>(B))
57 if (auto *Sym = dyn_cast<DefinedRegular>(B))56 if (SS->CopyRelSec || SS->NeedsPltAddr)
58 if (Sym->Section && Sym->Section->Live)57 V.push_back(SS);
59 V.push_back(Sym);58 if (auto *DR = dyn_cast<Defined>(B))
59 if (DR->File == File && !DR->isSection() && DR->Section &&
60 DR->Section->Live)
61 V.push_back(DR);
62 }
63 }
60 return V;64 return V;
61}65}
6266
63// Returns a map from sections to their symbols.67// Returns a map from sections to their symbols.
64template <class ELFT>68static SymbolMapTy getSectionSyms(ArrayRef<Symbol *> Syms) {
65SymbolMapTy getSectionSyms(ArrayRef<DefinedRegular *> Syms) {
66 SymbolMapTy Ret;69 SymbolMapTy Ret;
67 for (DefinedRegular *S : Syms)70 for (Symbol *S : Syms) {
68 Ret[S->Section].push_back(S);71 if (auto *DR = dyn_cast<Defined>(S)) {
72 Ret[DR->Section].push_back(S);
73 continue;
74 }
75
76 SharedSymbol *SS = cast<SharedSymbol>(S);
77 if (SS->CopyRelSec)
78 Ret[SS->CopyRelSec].push_back(S);
79 else
80 Ret[InX::Plt].push_back(S);
81 }
6982
70 // Sort symbols by address. We want to print out symbols in the83 // Sort symbols by address. We want to print out symbols in the
71 // order in the output file rather than the order they appeared84 // order in the output file rather than the order they appeared
72 // in the input files.85 // in the input files.
73 for (auto &It : Ret) {86 for (auto &It : Ret) {
74 SmallVectorImpl<DefinedRegular *> &V = It.second;87 SmallVectorImpl<Symbol *> &V = It.second;
75 std::sort(V.begin(), V.end(), [](DefinedRegular *A, DefinedRegular *B) {88 std::sort(V.begin(), V.end(),
76 return A->getVA() < B->getVA();89 [](Symbol *A, Symbol *B) { return A->getVA() < B->getVA(); });
77 });
78 }90 }
79 return Ret;91 return Ret;
80}92}
...@@ -82,25 +94,22 @@ SymbolMapTy getSectionSyms(ArrayRef<DefinedRegular *> Syms) {...@@ -82,25 +94,22 @@ SymbolMapTy getSectionSyms(ArrayRef<DefinedRegular *> Syms) {
82// Construct a map from symbols to their stringified representations.94// Construct a map from symbols to their stringified representations.
83// Demangling symbols (which is what toString() does) is slow, so95// Demangling symbols (which is what toString() does) is slow, so
84// we do that in batch using parallel-for.96// we do that in batch using parallel-for.
85template <class ELFT>97static DenseMap<Symbol *, std::string>
86DenseMap<DefinedRegular *, std::string>98getSymbolStrings(ArrayRef<Symbol *> Syms) {
87getSymbolStrings(ArrayRef<DefinedRegular *> Syms) {
88 std::vector<std::string> Str(Syms.size());99 std::vector<std::string> Str(Syms.size());
89 parallelForEachN(0, Syms.size(), [&](size_t I) {100 parallelForEachN(0, Syms.size(), [&](size_t I) {
90 raw_string_ostream OS(Str[I]);101 raw_string_ostream OS(Str[I]);
91 writeHeader<ELFT>(OS, Syms[I]->getVA(), Syms[I]->template getSize<ELFT>(),102 writeHeader(OS, Syms[I]->getVA(), Syms[I]->getSize(), 0);
92 0);
93 OS << indent(2) << toString(*Syms[I]);103 OS << indent(2) << toString(*Syms[I]);
94 });104 });
95105
96 DenseMap<DefinedRegular *, std::string> Ret;106 DenseMap<Symbol *, std::string> Ret;
97 for (size_t I = 0, E = Syms.size(); I < E; ++I)107 for (size_t I = 0, E = Syms.size(); I < E; ++I)
98 Ret[Syms[I]] = std::move(Str[I]);108 Ret[Syms[I]] = std::move(Str[I]);
99 return Ret;109 return Ret;
100}110}
101111
102template <class ELFT>112void elf::writeMapFile() {
103void elf::writeMapFile(llvm::ArrayRef<OutputSectionCommand *> Script) {
104 if (Config->MapFile.empty())113 if (Config->MapFile.empty())
105 return;114 return;
106115
...@@ -113,38 +122,32 @@ void elf::writeMapFile(llvm::ArrayRef<OutputSectionCommand *> Script) {...@@ -113,38 +122,32 @@ void elf::writeMapFile(llvm::ArrayRef<OutputSectionCommand *> Script) {
113 }122 }
114123
115 // Collect symbol info that we want to print out.124 // Collect symbol info that we want to print out.
116 std::vector<DefinedRegular *> Syms = getSymbols<ELFT>();125 std::vector<Symbol *> Syms = getSymbols();
117 SymbolMapTy SectionSyms = getSectionSyms<ELFT>(Syms);126 SymbolMapTy SectionSyms = getSectionSyms(Syms);
118 DenseMap<DefinedRegular *, std::string> SymStr = getSymbolStrings<ELFT>(Syms);127 DenseMap<Symbol *, std::string> SymStr = getSymbolStrings(Syms);
119128
120 // Print out the header line.129 // Print out the header line.
121 int W = ELFT::Is64Bits ? 16 : 8;130 int W = Config->Is64 ? 16 : 8;
122 OS << left_justify("Address", W) << ' ' << left_justify("Size", W)131 OS << left_justify("Address", W) << ' ' << left_justify("Size", W)
123 << " Align Out In Symbol\n";132 << " Align Out In Symbol\n";
124133
125 // Print out file contents.134 // Print out file contents.
126 for (OutputSectionCommand *Cmd : Script) {135 for (OutputSection *OSec : OutputSections) {
127 OutputSection *OSec = Cmd->Sec;136 writeHeader(OS, OSec->Addr, OSec->Size, OSec->Alignment);
128 writeHeader<ELFT>(OS, OSec->Addr, OSec->Size, OSec->Alignment);
129 OS << OSec->Name << '\n';137 OS << OSec->Name << '\n';
130138
131 // Dump symbols for each input section.139 // Dump symbols for each input section.
132 for (BaseCommand *Base : Cmd->Commands) {140 for (BaseCommand *Base : OSec->SectionCommands) {
133 auto *ISD = dyn_cast<InputSectionDescription>(Base);141 auto *ISD = dyn_cast<InputSectionDescription>(Base);
134 if (!ISD)142 if (!ISD)
135 continue;143 continue;
136 for (InputSection *IS : ISD->Sections) {144 for (InputSection *IS : ISD->Sections) {
137 writeHeader<ELFT>(OS, OSec->Addr + IS->OutSecOff, IS->getSize(),145 writeHeader(OS, OSec->Addr + IS->OutSecOff, IS->getSize(),
138 IS->Alignment);146 IS->Alignment);
139 OS << indent(1) << toString(IS) << '\n';147 OS << indent(1) << toString(IS) << '\n';
140 for (DefinedRegular *Sym : SectionSyms[IS])148 for (Symbol *Sym : SectionSyms[IS])
141 OS << SymStr[Sym] << '\n';149 OS << SymStr[Sym] << '\n';
142 }150 }
143 }151 }
144 }152 }
145}153}
146
147template void elf::writeMapFile<ELF32LE>(ArrayRef<OutputSectionCommand *>);
148template void elf::writeMapFile<ELF32BE>(ArrayRef<OutputSectionCommand *>);
149template void elf::writeMapFile<ELF64LE>(ArrayRef<OutputSectionCommand *>);
150template void elf::writeMapFile<ELF64BE>(ArrayRef<OutputSectionCommand *>);
deps/lld/ELF/MapFile.h+1-5
...@@ -10,13 +10,9 @@...@@ -10,13 +10,9 @@
10#ifndef LLD_ELF_MAPFILE_H10#ifndef LLD_ELF_MAPFILE_H
11#define LLD_ELF_MAPFILE_H11#define LLD_ELF_MAPFILE_H
1212
13#include <llvm/ADT/ArrayRef.h>
14
15namespace lld {13namespace lld {
16namespace elf {14namespace elf {
17struct OutputSectionCommand;15void writeMapFile();
18template <class ELFT>
19void writeMapFile(llvm::ArrayRef<OutputSectionCommand *> Script);
20} // namespace elf16} // namespace elf
21} // namespace lld17} // namespace lld
2218
deps/lld/ELF/MarkLive.cpp+119-72
...@@ -22,13 +22,13 @@...@@ -22,13 +22,13 @@
2222
23#include "InputSection.h"23#include "InputSection.h"
24#include "LinkerScript.h"24#include "LinkerScript.h"
25#include "Memory.h"
26#include "OutputSections.h"25#include "OutputSections.h"
27#include "Strings.h"26#include "Strings.h"
28#include "SymbolTable.h"27#include "SymbolTable.h"
29#include "Symbols.h"28#include "Symbols.h"
30#include "Target.h"29#include "Target.h"
31#include "Writer.h"30#include "Writer.h"
31#include "lld/Common/Memory.h"
32#include "llvm/ADT/STLExtras.h"32#include "llvm/ADT/STLExtras.h"
33#include "llvm/Object/ELF.h"33#include "llvm/Object/ELF.h"
34#include <functional>34#include <functional>
...@@ -42,15 +42,6 @@ using namespace llvm::support::endian;...@@ -42,15 +42,6 @@ using namespace llvm::support::endian;
42using namespace lld;42using namespace lld;
43using namespace lld::elf;43using namespace lld::elf;
4444
45namespace {
46// A resolved relocation. The Sec and Offset fields are set if the relocation
47// was resolved to an offset within a section.
48struct ResolvedReloc {
49 InputSectionBase *Sec;
50 uint64_t Offset;
51};
52} // end anonymous namespace
53
54template <class ELFT>45template <class ELFT>
55static typename ELFT::uint getAddend(InputSectionBase &Sec,46static typename ELFT::uint getAddend(InputSectionBase &Sec,
56 const typename ELFT::Rel &Rel) {47 const typename ELFT::Rel &Rel) {
...@@ -70,25 +61,36 @@ static DenseMap<StringRef, std::vector<InputSectionBase *>> CNamedSections;...@@ -70,25 +61,36 @@ static DenseMap<StringRef, std::vector<InputSectionBase *>> CNamedSections;
7061
71template <class ELFT, class RelT>62template <class ELFT, class RelT>
72static void resolveReloc(InputSectionBase &Sec, RelT &Rel,63static void resolveReloc(InputSectionBase &Sec, RelT &Rel,
73 std::function<void(ResolvedReloc)> Fn) {64 std::function<void(InputSectionBase *, uint64_t)> Fn) {
74 SymbolBody &B = Sec.getFile<ELFT>()->getRelocTargetSym(Rel);65 Symbol &B = Sec.getFile<ELFT>()->getRelocTargetSym(Rel);
75 if (auto *D = dyn_cast<DefinedRegular>(&B)) {66
76 if (!D->Section)67 // If a symbol is referenced in a live section, it is used.
68 B.Used = true;
69 if (auto *SS = dyn_cast<SharedSymbol>(&B))
70 if (!SS->isWeak())
71 SS->getFile<ELFT>().IsNeeded = true;
72
73 if (auto *D = dyn_cast<Defined>(&B)) {
74 auto *RelSec = dyn_cast_or_null<InputSectionBase>(D->Section);
75 if (!RelSec)
77 return;76 return;
78 typename ELFT::uint Offset = D->Value;77 uint64_t Offset = D->Value;
79 if (D->isSection())78 if (D->isSection())
80 Offset += getAddend<ELFT>(Sec, Rel);79 Offset += getAddend<ELFT>(Sec, Rel);
81 Fn({cast<InputSectionBase>(D->Section), Offset});80 Fn(RelSec, Offset);
82 } else if (auto *U = dyn_cast<Undefined>(&B)) {81 return;
83 for (InputSectionBase *Sec : CNamedSections.lookup(U->getName()))
84 Fn({Sec, 0});
85 }82 }
83
84 if (!B.isDefined())
85 for (InputSectionBase *Sec : CNamedSections.lookup(B.getName()))
86 Fn(Sec, 0);
86}87}
8788
88// Calls Fn for each section that Sec refers to via relocations.89// Calls Fn for each section that Sec refers to via relocations.
89template <class ELFT>90template <class ELFT>
90static void forEachSuccessor(InputSection &Sec,91static void
91 std::function<void(ResolvedReloc)> Fn) {92forEachSuccessor(InputSection &Sec,
93 std::function<void(InputSectionBase *, uint64_t)> Fn) {
92 if (Sec.AreRelocsRela) {94 if (Sec.AreRelocsRela) {
93 for (const typename ELFT::Rela &Rel : Sec.template relas<ELFT>())95 for (const typename ELFT::Rela &Rel : Sec.template relas<ELFT>())
94 resolveReloc<ELFT>(Sec, Rel, Fn);96 resolveReloc<ELFT>(Sec, Rel, Fn);
...@@ -96,8 +98,9 @@ static void forEachSuccessor(InputSection &Sec,...@@ -96,8 +98,9 @@ static void forEachSuccessor(InputSection &Sec,
96 for (const typename ELFT::Rel &Rel : Sec.template rels<ELFT>())98 for (const typename ELFT::Rel &Rel : Sec.template rels<ELFT>())
97 resolveReloc<ELFT>(Sec, Rel, Fn);99 resolveReloc<ELFT>(Sec, Rel, Fn);
98 }100 }
101
99 for (InputSectionBase *IS : Sec.DependentSections)102 for (InputSectionBase *IS : Sec.DependentSections)
100 Fn({IS, 0});103 Fn(IS, 0);
101}104}
102105
103// The .eh_frame section is an unfortunate special case.106// The .eh_frame section is an unfortunate special case.
...@@ -115,9 +118,11 @@ static void forEachSuccessor(InputSection &Sec,...@@ -115,9 +118,11 @@ static void forEachSuccessor(InputSection &Sec,
115// the gc pass. With that we would be able to also gc some sections holding118// the gc pass. With that we would be able to also gc some sections holding
116// LSDAs and personality functions if we found that they were unused.119// LSDAs and personality functions if we found that they were unused.
117template <class ELFT, class RelTy>120template <class ELFT, class RelTy>
118static void scanEhFrameSection(EhInputSection &EH, ArrayRef<RelTy> Rels,121static void
119 std::function<void(ResolvedReloc)> Enqueue) {122scanEhFrameSection(EhInputSection &EH, ArrayRef<RelTy> Rels,
123 std::function<void(InputSectionBase *, uint64_t)> Fn) {
120 const endianness E = ELFT::TargetEndianness;124 const endianness E = ELFT::TargetEndianness;
125
121 for (unsigned I = 0, N = EH.Pieces.size(); I < N; ++I) {126 for (unsigned I = 0, N = EH.Pieces.size(); I < N; ++I) {
122 EhSectionPiece &Piece = EH.Pieces[I];127 EhSectionPiece &Piece = EH.Pieces[I];
123 unsigned FirstRelI = Piece.FirstRelocation;128 unsigned FirstRelI = Piece.FirstRelocation;
...@@ -126,31 +131,31 @@ static void scanEhFrameSection(EhInputSection &EH, ArrayRef<RelTy> Rels,...@@ -126,31 +131,31 @@ static void scanEhFrameSection(EhInputSection &EH, ArrayRef<RelTy> Rels,
126 if (read32<E>(Piece.data().data() + 4) == 0) {131 if (read32<E>(Piece.data().data() + 4) == 0) {
127 // This is a CIE, we only need to worry about the first relocation. It is132 // This is a CIE, we only need to worry about the first relocation. It is
128 // known to point to the personality function.133 // known to point to the personality function.
129 resolveReloc<ELFT>(EH, Rels[FirstRelI], Enqueue);134 resolveReloc<ELFT>(EH, Rels[FirstRelI], Fn);
130 continue;135 continue;
131 }136 }
132 // This is a FDE. The relocations point to the described function or to137 // This is a FDE. The relocations point to the described function or to
133 // a LSDA. We only need to keep the LSDA alive, so ignore anything that138 // a LSDA. We only need to keep the LSDA alive, so ignore anything that
134 // points to executable sections.139 // points to executable sections.
135 typename ELFT::uint PieceEnd = Piece.InputOff + Piece.size();140 typename ELFT::uint PieceEnd = Piece.InputOff + Piece.Size;
136 for (unsigned I2 = FirstRelI, N2 = Rels.size(); I2 < N2; ++I2) {141 for (unsigned I2 = FirstRelI, N2 = Rels.size(); I2 < N2; ++I2) {
137 const RelTy &Rel = Rels[I2];142 const RelTy &Rel = Rels[I2];
138 if (Rel.r_offset >= PieceEnd)143 if (Rel.r_offset >= PieceEnd)
139 break;144 break;
140 resolveReloc<ELFT>(EH, Rels[I2], [&](ResolvedReloc R) {145 resolveReloc<ELFT>(EH, Rels[I2],
141 if (!R.Sec || R.Sec == &InputSection::Discarded)146 [&](InputSectionBase *Sec, uint64_t Offset) {
142 return;147 if (Sec && Sec != &InputSection::Discarded &&
143 if (R.Sec->Flags & SHF_EXECINSTR)148 !(Sec->Flags & SHF_EXECINSTR))
144 return;149 Fn(Sec, 0);
145 Enqueue({R.Sec, 0});150 });
146 });
147 }151 }
148 }152 }
149}153}
150154
151template <class ELFT>155template <class ELFT>
152static void scanEhFrameSection(EhInputSection &EH,156static void
153 std::function<void(ResolvedReloc)> Enqueue) {157scanEhFrameSection(EhInputSection &EH,
158 std::function<void(InputSectionBase *, uint64_t)> Fn) {
154 if (!EH.NumRelocations)159 if (!EH.NumRelocations)
155 return;160 return;
156161
...@@ -159,14 +164,14 @@ static void scanEhFrameSection(EhInputSection &EH,...@@ -159,14 +164,14 @@ static void scanEhFrameSection(EhInputSection &EH,
159 EH.split<ELFT>();164 EH.split<ELFT>();
160165
161 if (EH.AreRelocsRela)166 if (EH.AreRelocsRela)
162 scanEhFrameSection<ELFT>(EH, EH.template relas<ELFT>(), Enqueue);167 scanEhFrameSection<ELFT>(EH, EH.template relas<ELFT>(), Fn);
163 else168 else
164 scanEhFrameSection<ELFT>(EH, EH.template rels<ELFT>(), Enqueue);169 scanEhFrameSection<ELFT>(EH, EH.template rels<ELFT>(), Fn);
165}170}
166171
167// We do not garbage-collect two types of sections:172// Some sections are used directly by the loader, so they should never be
168// 1) Sections used by the loader (.init, .fini, .ctors, .dtors or .jcr)173// garbage-collected. This function returns true if a given section is such
169// 2) Non-allocatable sections which typically contain debugging information174// section.
170template <class ELFT> static bool isReserved(InputSectionBase *Sec) {175template <class ELFT> static bool isReserved(InputSectionBase *Sec) {
171 switch (Sec->Type) {176 switch (Sec->Type) {
172 case SHT_FINI_ARRAY:177 case SHT_FINI_ARRAY:
...@@ -175,9 +180,6 @@ template <class ELFT> static bool isReserved(InputSectionBase *Sec) {...@@ -175,9 +180,6 @@ template <class ELFT> static bool isReserved(InputSectionBase *Sec) {
175 case SHT_PREINIT_ARRAY:180 case SHT_PREINIT_ARRAY:
176 return true;181 return true;
177 default:182 default:
178 if (!(Sec->Flags & SHF_ALLOC))
179 return true;
180
181 StringRef S = Sec->Name;183 StringRef S = Sec->Name;
182 return S.startswith(".ctors") || S.startswith(".dtors") ||184 return S.startswith(".ctors") || S.startswith(".dtors") ||
183 S.startswith(".init") || S.startswith(".fini") ||185 S.startswith(".init") || S.startswith(".fini") ||
...@@ -188,72 +190,74 @@ template <class ELFT> static bool isReserved(InputSectionBase *Sec) {...@@ -188,72 +190,74 @@ template <class ELFT> static bool isReserved(InputSectionBase *Sec) {
188// This is the main function of the garbage collector.190// This is the main function of the garbage collector.
189// Starting from GC-root sections, this function visits all reachable191// Starting from GC-root sections, this function visits all reachable
190// sections to set their "Live" bits.192// sections to set their "Live" bits.
191template <class ELFT> void elf::markLive() {193template <class ELFT> static void doGcSections() {
192 SmallVector<InputSection *, 256> Q;194 SmallVector<InputSection *, 256> Q;
193 CNamedSections.clear();195 CNamedSections.clear();
194196
195 auto Enqueue = [&](ResolvedReloc R) {197 auto Enqueue = [&](InputSectionBase *Sec, uint64_t Offset) {
196 // Skip over discarded sections. This in theory shouldn't happen, because198 // Skip over discarded sections. This in theory shouldn't happen, because
197 // the ELF spec doesn't allow a relocation to point to a deduplicated199 // the ELF spec doesn't allow a relocation to point to a deduplicated
198 // COMDAT section directly. Unfortunately this happens in practice (e.g.200 // COMDAT section directly. Unfortunately this happens in practice (e.g.
199 // .eh_frame) so we need to add a check.201 // .eh_frame) so we need to add a check.
200 if (R.Sec == &InputSection::Discarded)202 if (Sec == &InputSection::Discarded)
201 return;203 return;
202204
203 // We don't gc non alloc sections.
204 if (!(R.Sec->Flags & SHF_ALLOC))
205 return;
206205
207 // Usually, a whole section is marked as live or dead, but in mergeable206 // Usually, a whole section is marked as live or dead, but in mergeable
208 // (splittable) sections, each piece of data has independent liveness bit.207 // (splittable) sections, each piece of data has independent liveness bit.
209 // So we explicitly tell it which offset is in use.208 // So we explicitly tell it which offset is in use.
210 if (auto *MS = dyn_cast<MergeInputSection>(R.Sec))209 if (auto *MS = dyn_cast<MergeInputSection>(Sec))
211 MS->markLiveAt(R.Offset);210 MS->markLiveAt(Offset);
212211
213 if (R.Sec->Live)212 if (Sec->Live)
214 return;213 return;
215 R.Sec->Live = true;214 Sec->Live = true;
215
216 // Add input section to the queue.216 // Add input section to the queue.
217 if (InputSection *S = dyn_cast<InputSection>(R.Sec))217 if (InputSection *S = dyn_cast<InputSection>(Sec))
218 Q.push_back(S);218 Q.push_back(S);
219 };219 };
220220
221 auto MarkSymbol = [&](const SymbolBody *Sym) {221 auto MarkSymbol = [&](Symbol *Sym) {
222 if (auto *D = dyn_cast_or_null<DefinedRegular>(Sym))222 if (auto *D = dyn_cast_or_null<Defined>(Sym))
223 if (auto *IS = cast_or_null<InputSectionBase>(D->Section))223 if (auto *IS = dyn_cast_or_null<InputSectionBase>(D->Section))
224 Enqueue({IS, D->Value});224 Enqueue(IS, D->Value);
225 };225 };
226226
227 // Add GC root symbols.227 // Add GC root symbols.
228 MarkSymbol(Symtab<ELFT>::X->find(Config->Entry));228 MarkSymbol(Symtab->find(Config->Entry));
229 MarkSymbol(Symtab<ELFT>::X->find(Config->Init));229 MarkSymbol(Symtab->find(Config->Init));
230 MarkSymbol(Symtab<ELFT>::X->find(Config->Fini));230 MarkSymbol(Symtab->find(Config->Fini));
231 for (StringRef S : Config->Undefined)231 for (StringRef S : Config->Undefined)
232 MarkSymbol(Symtab<ELFT>::X->find(S));232 MarkSymbol(Symtab->find(S));
233 for (StringRef S : Script->Opt.ReferencedSymbols)233 for (StringRef S : Script->ReferencedSymbols)
234 MarkSymbol(Symtab<ELFT>::X->find(S));234 MarkSymbol(Symtab->find(S));
235235
236 // Preserve externally-visible symbols if the symbols defined by this236 // Preserve externally-visible symbols if the symbols defined by this
237 // file can interrupt other ELF file's symbols at runtime.237 // file can interrupt other ELF file's symbols at runtime.
238 for (const Symbol *S : Symtab<ELFT>::X->getSymbols())238 for (Symbol *S : Symtab->getSymbols())
239 if (S->includeInDynsym())239 if (S->includeInDynsym())
240 MarkSymbol(S->body());240 MarkSymbol(S);
241241
242 // Preserve special sections and those which are specified in linker242 // Preserve special sections and those which are specified in linker
243 // script KEEP command.243 // script KEEP command.
244 for (InputSectionBase *Sec : InputSections) {244 for (InputSectionBase *Sec : InputSections) {
245 // .eh_frame is always marked as live now, but also it can reference to245 // Mark .eh_frame sections as live because there are usually no relocations
246 // sections that contain personality. We preserve all non-text sections246 // that point to .eh_frames. Otherwise, the garbage collector would drop
247 // referred by .eh_frame here.247 // all of them. We also want to preserve personality routines and LSDA
248 if (auto *EH = dyn_cast_or_null<EhInputSection>(Sec))248 // referenced by .eh_frame sections, so we scan them for that here.
249 if (auto *EH = dyn_cast<EhInputSection>(Sec)) {
250 EH->Live = true;
249 scanEhFrameSection<ELFT>(*EH, Enqueue);251 scanEhFrameSection<ELFT>(*EH, Enqueue);
252 }
253
250 if (Sec->Flags & SHF_LINK_ORDER)254 if (Sec->Flags & SHF_LINK_ORDER)
251 continue;255 continue;
252 if (isReserved<ELFT>(Sec) || Script->shouldKeep(Sec))256 if (isReserved<ELFT>(Sec) || Script->shouldKeep(Sec))
253 Enqueue({Sec, 0});257 Enqueue(Sec, 0);
254 else if (isValidCIdentifier(Sec->Name)) {258 else if (isValidCIdentifier(Sec->Name)) {
255 CNamedSections[Saver.save("__start_" + Sec->Name)].push_back(Sec);259 CNamedSections[Saver.save("__start_" + Sec->Name)].push_back(Sec);
256 CNamedSections[Saver.save("__end_" + Sec->Name)].push_back(Sec);260 CNamedSections[Saver.save("__stop_" + Sec->Name)].push_back(Sec);
257 }261 }
258 }262 }
259263
...@@ -262,6 +266,49 @@ template <class ELFT> void elf::markLive() {...@@ -262,6 +266,49 @@ template <class ELFT> void elf::markLive() {
262 forEachSuccessor<ELFT>(*Q.pop_back_val(), Enqueue);266 forEachSuccessor<ELFT>(*Q.pop_back_val(), Enqueue);
263}267}
264268
269// Before calling this function, Live bits are off for all
270// input sections. This function make some or all of them on
271// so that they are emitted to the output file.
272template <class ELFT> void elf::markLive() {
273 // If -gc-sections is missing, no sections are removed.
274 if (!Config->GcSections) {
275 for (InputSectionBase *Sec : InputSections)
276 Sec->Live = true;
277 return;
278 }
279
280 // The -gc-sections option works only for SHF_ALLOC sections
281 // (sections that are memory-mapped at runtime). So we can
282 // unconditionally make non-SHF_ALLOC sections alive.
283 //
284 // Non SHF_ALLOC sections are not removed even if they are
285 // unreachable through relocations because reachability is not
286 // a good signal whether they are garbage or not (e.g. there is
287 // usually no section referring to a .comment section, but we
288 // want to keep it.)
289 //
290 // Note on SHF_REL{,A}: Such sections reach here only when -r
291 // or -emit-reloc were given. And they are subject of garbage
292 // collection because, if we remove a text section, we also
293 // remove its relocation section.
294 for (InputSectionBase *Sec : InputSections) {
295 bool IsAlloc = (Sec->Flags & SHF_ALLOC);
296 bool IsRel = (Sec->Type == SHT_REL || Sec->Type == SHT_RELA);
297 if (!IsAlloc && !IsRel)
298 Sec->Live = true;
299 }
300
301 // Follow the graph to mark all live sections.
302 doGcSections<ELFT>();
303
304 // Report garbage-collected sections.
305 if (Config->PrintGcSections)
306 for (InputSectionBase *Sec : InputSections)
307 if (!Sec->Live)
308 message("removing unused section from '" + Sec->Name + "' in file '" +
309 Sec->File->getName() + "'");
310}
311
265template void elf::markLive<ELF32LE>();312template void elf::markLive<ELF32LE>();
266template void elf::markLive<ELF32BE>();313template void elf::markLive<ELF32BE>();
267template void elf::markLive<ELF64LE>();314template void elf::markLive<ELF64LE>();
deps/lld/ELF/Memory.h deleted-67
...@@ -1,67 +0,0 @@
1//===- Memory.h -------------------------------------------------*- C++ -*-===//
2//
3// The LLVM Linker
4//
5// This file is distributed under the University of Illinois Open Source
6// License. See LICENSE.TXT for details.
7//
8//===----------------------------------------------------------------------===//
9//
10// This file defines arena allocators.
11//
12// Almost all large objects, such as files, sections or symbols, are
13// used for the entire lifetime of the linker once they are created.
14// This usage characteristic makes arena allocator an attractive choice
15// where the entire linker is one arena. With an arena, newly created
16// objects belong to the arena and freed all at once when everything is done.
17// Arena allocators are efficient and easy to understand.
18// Most objects are allocated using the arena allocators defined by this file.
19//
20// If you edit this file, please edit COFF/Memory.h too.
21//
22//===----------------------------------------------------------------------===//
23
24#ifndef LLD_ELF_MEMORY_H
25#define LLD_ELF_MEMORY_H
26
27#include "llvm/Support/Allocator.h"
28#include "llvm/Support/StringSaver.h"
29#include <vector>
30
31namespace lld {
32namespace elf {
33
34// Use this arena if your object doesn't have a destructor.
35extern llvm::BumpPtrAllocator BAlloc;
36extern llvm::StringSaver Saver;
37
38// These two classes are hack to keep track of all
39// SpecificBumpPtrAllocator instances.
40struct SpecificAllocBase {
41 SpecificAllocBase() { Instances.push_back(this); }
42 virtual ~SpecificAllocBase() = default;
43 virtual void reset() = 0;
44 static std::vector<SpecificAllocBase *> Instances;
45};
46
47template <class T> struct SpecificAlloc : public SpecificAllocBase {
48 void reset() override { Alloc.DestroyAll(); }
49 llvm::SpecificBumpPtrAllocator<T> Alloc;
50};
51
52// Use this arena if your object has a destructor.
53// Your destructor will be invoked from freeArena().
54template <typename T, typename... U> T *make(U &&... Args) {
55 static SpecificAlloc<T> Alloc;
56 return new (Alloc.Alloc.Allocate()) T(std::forward<U>(Args)...);
57}
58
59inline void freeArena() {
60 for (SpecificAllocBase *Alloc : SpecificAllocBase::Instances)
61 Alloc->reset();
62 BAlloc.Reset();
63}
64} // namespace elf
65} // namespace lld
66
67#endif
deps/lld/ELF/Options.td+100-77
...@@ -5,7 +5,11 @@ include "llvm/Option/OptParser.td"...@@ -5,7 +5,11 @@ include "llvm/Option/OptParser.td"
5class F<string name>: Flag<["--", "-"], name>;5class F<string name>: Flag<["--", "-"], name>;
6class J<string name>: Joined<["--", "-"], name>;6class J<string name>: Joined<["--", "-"], name>;
7class S<string name>: Separate<["--", "-"], name>;7class S<string name>: Separate<["--", "-"], name>;
8class JS<string name>: JoinedOrSeparate<["--", "-"], name>;8
9multiclass Eq<string name> {
10 def "": Separate<["--", "-"], name>;
11 def _eq: Joined<["--", "-"], name # "=">, Alias<!cast<Separate>(NAME)>;
12}
913
10def auxiliary: S<"auxiliary">, HelpText<"Set DT_AUXILIARY field to the specified name">;14def auxiliary: S<"auxiliary">, HelpText<"Set DT_AUXILIARY field to the specified name">;
1115
...@@ -22,21 +26,24 @@ def build_id: F<"build-id">, HelpText<"Generate build ID note">;...@@ -22,21 +26,24 @@ def build_id: F<"build-id">, HelpText<"Generate build ID note">;
2226
23def build_id_eq: J<"build-id=">, HelpText<"Generate build ID note">;27def build_id_eq: J<"build-id=">, HelpText<"Generate build ID note">;
2428
25def compress_debug_sections : J<"compress-debug-sections=">,29defm compress_debug_sections : Eq<"compress-debug-sections">,
26 HelpText<"Compress DWARF debug sections">;30 HelpText<"Compress DWARF debug sections">;
2731
28def defsym: J<"defsym=">, HelpText<"Define a symbol alias">;32defm defsym: Eq<"defsym">, HelpText<"Define a symbol alias">;
2933
30def L: JoinedOrSeparate<["-"], "L">, MetaVarName<"<dir>">,34defm library_path: Eq<"library-path">,
31 HelpText<"Add a directory to the library search path">;35 HelpText<"Add a directory to the library search path">, MetaVarName<"<dir>">;
3236
33def O: Joined<["-"], "O">, HelpText<"Optimize output file size">;37def O: JoinedOrSeparate<["-"], "O">, HelpText<"Optimize output file size">;
3438
35def Tbss: S<"Tbss">, HelpText<"Same as --section-start with .bss as the sectionname">;39defm Tbss: Eq<"Tbss">,
40 HelpText<"Same as --section-start with .bss as the sectionname">;
3641
37def Tdata: S<"Tdata">, HelpText<"Same as --section-start with .data as the sectionname">;42defm Tdata: Eq<"Tdata">,
43 HelpText<"Same as --section-start with .data as the sectionname">;
3844
39def Ttext: S<"Ttext">, HelpText<"Same as --section-start with .text as the sectionname">;45defm Ttext: Eq<"Ttext">,
46 HelpText<"Same as --section-start with .text as the sectionname">;
4047
41def allow_multiple_definition: F<"allow-multiple-definition">,48def allow_multiple_definition: F<"allow-multiple-definition">,
42 HelpText<"Allow multiple definitions">;49 HelpText<"Allow multiple definitions">;
...@@ -44,6 +51,9 @@ def allow_multiple_definition: F<"allow-multiple-definition">,...@@ -44,6 +51,9 @@ def allow_multiple_definition: F<"allow-multiple-definition">,
44def as_needed: F<"as-needed">,51def as_needed: F<"as-needed">,
45 HelpText<"Only set DT_NEEDED for shared libraries if used">;52 HelpText<"Only set DT_NEEDED for shared libraries if used">;
4653
54// -chroot doesn't have a help text because it is an internal option.
55def chroot: S<"chroot">;
56
47def color_diagnostics: F<"color-diagnostics">,57def color_diagnostics: F<"color-diagnostics">,
48 HelpText<"Use colors in diagnostics">;58 HelpText<"Use colors in diagnostics">;
4959
...@@ -69,7 +79,7 @@ def discard_none: F<"discard-none">,...@@ -69,7 +79,7 @@ def discard_none: F<"discard-none">,
69def dynamic_linker: S<"dynamic-linker">,79def dynamic_linker: S<"dynamic-linker">,
70 HelpText<"Which dynamic linker to use">;80 HelpText<"Which dynamic linker to use">;
7181
72def dynamic_list: S<"dynamic-list">,82defm dynamic_list: Eq<"dynamic-list">,
73 HelpText<"Read a list of dynamic symbols">;83 HelpText<"Read a list of dynamic symbols">;
7484
75def eh_frame_hdr: F<"eh-frame-hdr">,85def eh_frame_hdr: F<"eh-frame-hdr">,
...@@ -83,37 +93,42 @@ def enable_new_dtags: F<"enable-new-dtags">,...@@ -83,37 +93,42 @@ def enable_new_dtags: F<"enable-new-dtags">,
83def end_lib: F<"end-lib">,93def end_lib: F<"end-lib">,
84 HelpText<"End a grouping of objects that should be treated as if they were together in an archive">;94 HelpText<"End a grouping of objects that should be treated as if they were together in an archive">;
8595
86def entry: S<"entry">, MetaVarName<"<entry>">,96defm entry: Eq<"entry">, HelpText<"Name of entry point symbol">,
87 HelpText<"Name of entry point symbol">;97 MetaVarName<"<entry>">;
8898
89def error_limit: S<"error-limit">,99defm error_limit: Eq<"error-limit">,
90 HelpText<"Maximum number of errors to emit before stopping (0 = no limit)">;100 HelpText<"Maximum number of errors to emit before stopping (0 = no limit)">;
91101
92def error_unresolved_symbols: F<"error-unresolved-symbols">,102def error_unresolved_symbols: F<"error-unresolved-symbols">,
93 HelpText<"Report unresolved symbols as errors">;103 HelpText<"Report unresolved symbols as errors">;
94104
95def exclude_libs: S<"exclude-libs">,105defm exclude_libs: Eq<"exclude-libs">,
96 HelpText<"Exclude static libraries from automatic export">;106 HelpText<"Exclude static libraries from automatic export">;
97107
98def export_dynamic: F<"export-dynamic">,108def export_dynamic: F<"export-dynamic">,
99 HelpText<"Put symbols in the dynamic symbol table">;109 HelpText<"Put symbols in the dynamic symbol table">;
100110
101def export_dynamic_symbol: S<"export-dynamic-symbol">,111defm export_dynamic_symbol: Eq<"export-dynamic-symbol">,
102 HelpText<"Put a symbol in the dynamic symbol table">;112 HelpText<"Put a symbol in the dynamic symbol table">;
103113
104def fatal_warnings: F<"fatal-warnings">,114def fatal_warnings: F<"fatal-warnings">,
105 HelpText<"Treat warnings as errors">;115 HelpText<"Treat warnings as errors">;
106116
107def filter: J<"filter=">, HelpText<"Set DT_FILTER field to the specified name">;117defm filter: Eq<"filter">,
118 HelpText<"Set DT_FILTER field to the specified name">;
108119
109def fini: S<"fini">, MetaVarName<"<symbol>">,120defm fini: Eq<"fini">,
110 HelpText<"Specify a finalizer function">;121 HelpText<"Specify a finalizer function">, MetaVarName<"<symbol>">;
122
123def fix_cortex_a53_843419: F<"fix-cortex-a53-843419">,
124 HelpText<"Apply fixes for AArch64 Cortex-A53 erratum 843419">;
111125
112def full_shutdown : F<"full-shutdown">,126def full_shutdown : F<"full-shutdown">,
113 HelpText<"Perform a full shutdown instead of calling _exit">;127 HelpText<"Perform a full shutdown instead of calling _exit">;
114128
115def format: J<"format=">, MetaVarName<"<input-format>">,129defm format: Eq<"format">,
116 HelpText<"Change the input format of the inputs following this option">;130 HelpText<"Change the input format of the inputs following this option">,
131 MetaVarName<"<input-format>">;
117132
118def gc_sections: F<"gc-sections">,133def gc_sections: F<"gc-sections">,
119 HelpText<"Enable garbage collection of unused sections">;134 HelpText<"Enable garbage collection of unused sections">;
...@@ -121,29 +136,35 @@ def gc_sections: F<"gc-sections">,...@@ -121,29 +136,35 @@ def gc_sections: F<"gc-sections">,
121def gdb_index: F<"gdb-index">,136def gdb_index: F<"gdb-index">,
122 HelpText<"Generate .gdb_index section">;137 HelpText<"Generate .gdb_index section">;
123138
124def hash_style: S<"hash-style">,139defm hash_style: Eq<"hash-style">,
125 HelpText<"Specify hash style (sysv, gnu or both)">;140 HelpText<"Specify hash style (sysv, gnu or both)">;
126141
127def help: F<"help">, HelpText<"Print option help">;142def help: F<"help">, HelpText<"Print option help">;
128143
129def icf_all: F<"icf=all">, HelpText<"Enable identical code folding">;144def icf_all: F<"icf=all">, HelpText<"Enable identical code folding">;
130145
146def icf_data: F<"icf-data">,
147 HelpText<"Enable ICF to also fold identical read only data">;
148
131def icf_none: F<"icf=none">, HelpText<"Disable identical code folding">;149def icf_none: F<"icf=none">, HelpText<"Disable identical code folding">;
132150
133def image_base : J<"image-base=">, HelpText<"Set the base address">;151defm image_base : Eq<"image-base">, HelpText<"Set the base address">;
134152
135def init: S<"init">, MetaVarName<"<symbol>">,153defm init: Eq<"init">, HelpText<"Specify an initializer function">,
136 HelpText<"Specify an initializer function">;154 MetaVarName<"<symbol>">;
137155
138def l: JoinedOrSeparate<["-"], "l">, MetaVarName<"<libName>">,156defm library: Eq<"library">, HelpText<"Root name of library to use">,
139 HelpText<"Root name of library to use">;157 MetaVarName<"<libName>">;
140158
141def lto_O: J<"lto-O">, MetaVarName<"<opt-level>">,159def lto_O: J<"lto-O">, MetaVarName<"<opt-level>">,
142 HelpText<"Optimization level for LTO">;160 HelpText<"Optimization level for LTO">;
143161
144def m: JoinedOrSeparate<["-"], "m">, HelpText<"Set target emulation">;162def m: JoinedOrSeparate<["-"], "m">, HelpText<"Set target emulation">;
145163
146def Map: JS<"Map">, HelpText<"Print a link map to the specified file">;164defm Map: Eq<"Map">, HelpText<"Print a link map to the specified file">;
165
166def merge_exidx_entries: F<"merge-exidx-entries">,
167 HelpText<"Enable merging .ARM.exidx entries">;
147168
148def nostdlib: F<"nostdlib">,169def nostdlib: F<"nostdlib">,
149 HelpText<"Only search directories specified on the command line">;170 HelpText<"Only search directories specified on the command line">;
...@@ -163,15 +184,24 @@ def no_demangle: F<"no-demangle">,...@@ -163,15 +184,24 @@ def no_demangle: F<"no-demangle">,
163def no_dynamic_linker: F<"no-dynamic-linker">,184def no_dynamic_linker: F<"no-dynamic-linker">,
164 HelpText<"Inhibit output of .interp section">;185 HelpText<"Inhibit output of .interp section">;
165186
187def no_eh_frame_hdr: F<"no-eh-frame-hdr">,
188 HelpText<"Do not create .eh_frame_hdr section">;
189
166def no_export_dynamic: F<"no-export-dynamic">;190def no_export_dynamic: F<"no-export-dynamic">;
167def no_fatal_warnings: F<"no-fatal-warnings">;191def no_fatal_warnings: F<"no-fatal-warnings">;
168192
169def no_gc_sections: F<"no-gc-sections">,193def no_gc_sections: F<"no-gc-sections">,
170 HelpText<"Disable garbage collection of unused sections">;194 HelpText<"Disable garbage collection of unused sections">;
171195
196def no_gdb_index: F<"no-gdb-index">,
197 HelpText<"Do not generate .gdb_index section">;
198
172def no_gnu_unique: F<"no-gnu-unique">,199def no_gnu_unique: F<"no-gnu-unique">,
173 HelpText<"Disable STB_GNU_UNIQUE symbol binding">;200 HelpText<"Disable STB_GNU_UNIQUE symbol binding">;
174201
202def no_merge_exidx_entries: F<"no-merge-exidx-entries">,
203 HelpText<"Disable merging .ARM.exidx entries">;
204
175def no_threads: F<"no-threads">,205def no_threads: F<"no-threads">,
176 HelpText<"Do not run the linker multi-threaded">;206 HelpText<"Do not run the linker multi-threaded">;
177207
...@@ -183,7 +213,14 @@ def noinhibit_exec: F<"noinhibit-exec">,...@@ -183,7 +213,14 @@ def noinhibit_exec: F<"noinhibit-exec">,
183213
184def nopie: F<"nopie">, HelpText<"Do not create a position independent executable">;214def nopie: F<"nopie">, HelpText<"Do not create a position independent executable">;
185215
186def no_rosegment: F<"no-rosegment">, HelpText<"Do not put read-only non-executable sections in their own segment">;216def no_omagic: Flag<["--"], "no-omagic">, MetaVarName<"<magic>">,
217 HelpText<"Do not set the text data sections to be writable">;
218
219def no_print_gc_sections: F<"no-print-gc-sections">,
220 HelpText<"Do not list removed unused sections">;
221
222def no_rosegment: F<"no-rosegment">,
223 HelpText<"Do not put read-only non-executable sections in their own segment">;
187224
188def no_undefined: F<"no-undefined">,225def no_undefined: F<"no-undefined">,
189 HelpText<"Report unresolved symbols even if the linker is creating a shared library">;226 HelpText<"Report unresolved symbols even if the linker is creating a shared library">;
...@@ -200,6 +237,12 @@ def oformat: Separate<["--"], "oformat">, MetaVarName<"<format>">,...@@ -200,6 +237,12 @@ def oformat: Separate<["--"], "oformat">, MetaVarName<"<format>">,
200def omagic: Flag<["--"], "omagic">, MetaVarName<"<magic>">,237def omagic: Flag<["--"], "omagic">, MetaVarName<"<magic>">,
201 HelpText<"Set the text and data sections to be readable and writable">;238 HelpText<"Set the text and data sections to be readable and writable">;
202239
240defm orphan_handling: Eq<"orphan-handling">,
241 HelpText<"Control how orphan sections are handled when linker script used">;
242
243def pack_dyn_relocs_eq: J<"pack-dyn-relocs=">, MetaVarName<"<format>">,
244 HelpText<"Pack dynamic relocations in the given format (none or android)">;
245
203def pie: F<"pie">, HelpText<"Create a position independent executable">;246def pie: F<"pie">, HelpText<"Create a position independent executable">;
204247
205def print_gc_sections: F<"print-gc-sections">,248def print_gc_sections: F<"print-gc-sections">,
...@@ -208,26 +251,28 @@ def print_gc_sections: F<"print-gc-sections">,...@@ -208,26 +251,28 @@ def print_gc_sections: F<"print-gc-sections">,
208def print_map: F<"print-map">,251def print_map: F<"print-map">,
209 HelpText<"Print a link map to the standard output">;252 HelpText<"Print a link map to the standard output">;
210253
211def reproduce: S<"reproduce">,254defm reproduce: Eq<"reproduce">,
212 HelpText<"Dump linker invocation and input files for debugging">;255 HelpText<"Dump linker invocation and input files for debugging">;
213256
214def rpath: S<"rpath">, HelpText<"Add a DT_RUNPATH to the output">;257defm rpath: Eq<"rpath">, HelpText<"Add a DT_RUNPATH to the output">;
215258
216def relocatable: F<"relocatable">, HelpText<"Create relocatable object file">;259def relocatable: F<"relocatable">, HelpText<"Create relocatable object file">;
217260
218def retain_symbols_file: J<"retain-symbols-file=">, MetaVarName<"<file>">,261defm retain_symbols_file: Eq<"retain-symbols-file">,
219 HelpText<"Retain only the symbols listed in the file">;262 HelpText<"Retain only the symbols listed in the file">,
263 MetaVarName<"<file>">;
220264
221def script: S<"script">, HelpText<"Read linker script">;265defm script: Eq<"script">, HelpText<"Read linker script">;
222266
223def section_start: S<"section-start">, MetaVarName<"<address>">,267def section_start: S<"section-start">, MetaVarName<"<address>">,
224 HelpText<"Set address of section">;268 HelpText<"Set address of section">;
225269
226def shared: F<"shared">, HelpText<"Build a shared object">;270def shared: F<"shared">, HelpText<"Build a shared object">;
227271
228def soname: J<"soname=">, HelpText<"Set DT_SONAME">;272defm soname: Eq<"soname">, HelpText<"Set DT_SONAME">;
229273
230def sort_section: S<"sort-section">, HelpText<"Specifies sections sorting rule when linkerscript is used">;274defm sort_section: Eq<"sort-section">,
275 HelpText<"Specifies sections sorting rule when linkerscript is used">;
231276
232def start_lib: F<"start-lib">,277def start_lib: F<"start-lib">,
233 HelpText<"Start a grouping of objects that should be treated as if they were together in an archive">;278 HelpText<"Start a grouping of objects that should be treated as if they were together in an archive">;
...@@ -239,27 +284,29 @@ def strip_debug: F<"strip-debug">, HelpText<"Strip debugging information">;...@@ -239,27 +284,29 @@ def strip_debug: F<"strip-debug">, HelpText<"Strip debugging information">;
239def symbol_ordering_file: S<"symbol-ordering-file">,284def symbol_ordering_file: S<"symbol-ordering-file">,
240 HelpText<"Layout sections in the order specified by symbol file">;285 HelpText<"Layout sections in the order specified by symbol file">;
241286
242def sysroot: J<"sysroot=">, HelpText<"Set the system root">;287defm sysroot: Eq<"sysroot">, HelpText<"Set the system root">;
243288
244def target1_rel: F<"target1-rel">, HelpText<"Interpret R_ARM_TARGET1 as R_ARM_REL32">;289def target1_rel: F<"target1-rel">, HelpText<"Interpret R_ARM_TARGET1 as R_ARM_REL32">;
245290
246def target1_abs: F<"target1-abs">, HelpText<"Interpret R_ARM_TARGET1 as R_ARM_ABS32">;291def target1_abs: F<"target1-abs">, HelpText<"Interpret R_ARM_TARGET1 as R_ARM_ABS32">;
247292
248def target2: J<"target2=">, MetaVarName<"<type>">, HelpText<"Interpret R_ARM_TARGET2 as <type>, where <type> is one of rel, abs, or got-rel">;293defm target2: Eq<"target2">,
294 HelpText<"Interpret R_ARM_TARGET2 as <type>, where <type> is one of rel, abs, or got-rel">,
295 MetaVarName<"<type>">;
249296
250def threads: F<"threads">, HelpText<"Run the linker multi-threaded">;297def threads: F<"threads">, HelpText<"Run the linker multi-threaded">;
251298
252def trace: F<"trace">, HelpText<"Print the names of the input files">;299def trace: F<"trace">, HelpText<"Print the names of the input files">;
253300
254def trace_symbol : S<"trace-symbol">, HelpText<"Trace references to symbols">;301defm trace_symbol : Eq<"trace-symbol">, HelpText<"Trace references to symbols">;
255302
256def undefined: S<"undefined">,303defm undefined: Eq<"undefined">,
257 HelpText<"Force undefined symbol during linking">;304 HelpText<"Force undefined symbol during linking">;
258305
259def unresolved_symbols: J<"unresolved-symbols=">,306defm unresolved_symbols: Eq<"unresolved-symbols">,
260 HelpText<"Determine how to handle unresolved symbols">;307 HelpText<"Determine how to handle unresolved symbols">;
261308
262def rsp_quoting: J<"rsp-quoting=">,309defm rsp_quoting: Eq<"rsp-quoting">,
263 HelpText<"Quoting style for response files. Values supported: windows|posix">;310 HelpText<"Quoting style for response files. Values supported: windows|posix">;
264311
265def v: Flag<["-"], "v">, HelpText<"Display the version number">;312def v: Flag<["-"], "v">, HelpText<"Display the version number">;
...@@ -268,8 +315,7 @@ def verbose: F<"verbose">, HelpText<"Verbose mode">;...@@ -268,8 +315,7 @@ def verbose: F<"verbose">, HelpText<"Verbose mode">;
268315
269def version: F<"version">, HelpText<"Display the version number and exit">;316def version: F<"version">, HelpText<"Display the version number and exit">;
270317
271def version_script: S<"version-script">,318defm version_script: Eq<"version-script">, HelpText<"Read a version script">;
272 HelpText<"Read a version script">;
273319
274def warn_common: F<"warn-common">,320def warn_common: F<"warn-common">,
275 HelpText<"Warn about duplicate common symbols">;321 HelpText<"Warn about duplicate common symbols">;
...@@ -280,8 +326,8 @@ def warn_unresolved_symbols: F<"warn-unresolved-symbols">,...@@ -280,8 +326,8 @@ def warn_unresolved_symbols: F<"warn-unresolved-symbols">,
280def whole_archive: F<"whole-archive">,326def whole_archive: F<"whole-archive">,
281 HelpText<"Force load of all members in a static library">;327 HelpText<"Force load of all members in a static library">;
282328
283def wrap: S<"wrap">, MetaVarName<"<symbol>">,329defm wrap: Eq<"wrap">, HelpText<"Use wrapper functions for symbol">,
284 HelpText<"Use wrapper functions for symbol">;330 MetaVarName<"<symbol>">;
285331
286def z: JoinedOrSeparate<["-"], "z">, MetaVarName<"<option>">,332def z: JoinedOrSeparate<["-"], "z">, MetaVarName<"<option>">,
287 HelpText<"Linker option extensions">;333 HelpText<"Linker option extensions">;
...@@ -293,60 +339,36 @@ def alias_Bdynamic_dy: F<"dy">, Alias<Bdynamic>;...@@ -293,60 +339,36 @@ def alias_Bdynamic_dy: F<"dy">, Alias<Bdynamic>;
293def alias_Bstatic_dn: F<"dn">, Alias<Bstatic>;339def alias_Bstatic_dn: F<"dn">, Alias<Bstatic>;
294def alias_Bstatic_non_shared: F<"non_shared">, Alias<Bstatic>;340def alias_Bstatic_non_shared: F<"non_shared">, Alias<Bstatic>;
295def alias_Bstatic_static: F<"static">, Alias<Bstatic>;341def alias_Bstatic_static: F<"static">, Alias<Bstatic>;
296def alias_L__library_path: J<"library-path=">, Alias<L>;
297def alias_define_common_d: Flag<["-"], "d">, Alias<define_common>;342def alias_define_common_d: Flag<["-"], "d">, Alias<define_common>;
298def alias_define_common_dc: F<"dc">, Alias<define_common>;343def alias_define_common_dc: F<"dc">, Alias<define_common>;
299def alias_define_common_dp: F<"dp">, Alias<define_common>;344def alias_define_common_dp: F<"dp">, Alias<define_common>;
300def alias_defsym: S<"defsym">, Alias<defsym>;
301def alias_discard_all_x: Flag<["-"], "x">, Alias<discard_all>;345def alias_discard_all_x: Flag<["-"], "x">, Alias<discard_all>;
302def alias_discard_locals_X: Flag<["-"], "X">, Alias<discard_locals>;346def alias_discard_locals_X: Flag<["-"], "X">, Alias<discard_locals>;
303def alias_dynamic_list: J<"dynamic-list=">, Alias<dynamic_list>;
304def alias_emit_relocs: Flag<["-"], "q">, Alias<emit_relocs>;347def alias_emit_relocs: Flag<["-"], "q">, Alias<emit_relocs>;
305def alias_entry_e: JoinedOrSeparate<["-"], "e">, Alias<entry>;348def alias_entry_e: JoinedOrSeparate<["-"], "e">, Alias<entry>;
306def alias_entry_entry: J<"entry=">, Alias<entry>;
307def alias_error_limit: J<"error-limit=">, Alias<error_limit>;
308def alias_exclude_libs: J<"exclude-libs=">, Alias<exclude_libs>;
309def alias_export_dynamic_E: Flag<["-"], "E">, Alias<export_dynamic>;349def alias_export_dynamic_E: Flag<["-"], "E">, Alias<export_dynamic>;
310def alias_export_dynamic_symbol: J<"export-dynamic-symbol=">,
311 Alias<export_dynamic_symbol>;
312def alias_filter: Separate<["-"], "F">, Alias<filter>;350def alias_filter: Separate<["-"], "F">, Alias<filter>;
313def alias_fini_fini: J<"fini=">, Alias<fini>;
314def alias_format_b: S<"b">, Alias<format>;351def alias_format_b: S<"b">, Alias<format>;
315def alias_hash_style_hash_style: J<"hash-style=">, Alias<hash_style>;352def alias_library: JoinedOrSeparate<["-"], "l">, Alias<library>;
316def alias_init_init: J<"init=">, Alias<init>;353def alias_library_path: JoinedOrSeparate<["-"], "L">, Alias<library_path>;
317def alias_l__library: J<"library=">, Alias<l>;
318def alias_Map_eq: J<"Map=">, Alias<Map>;
319def alias_omagic: Flag<["-"], "N">, Alias<omagic>;354def alias_omagic: Flag<["-"], "N">, Alias<omagic>;
320def alias_o_output: Joined<["--"], "output=">, Alias<o>;355def alias_o_output: Joined<["--"], "output=">, Alias<o>;
321def alias_o_output2 : Separate<["--"], "output">, Alias<o>;356def alias_o_output2 : Separate<["--"], "output">, Alias<o>;
322def alias_pie_pic_executable: F<"pic-executable">, Alias<pie>;357def alias_pie_pic_executable: F<"pic-executable">, Alias<pie>;
323def alias_print_map_M: Flag<["-"], "M">, Alias<print_map>;358def alias_print_map_M: Flag<["-"], "M">, Alias<print_map>;
324def alias_relocatable_r: Flag<["-"], "r">, Alias<relocatable>;359def alias_relocatable_r: Flag<["-"], "r">, Alias<relocatable>;
325def alias_reproduce_eq: J<"reproduce=">, Alias<reproduce>;
326def alias_retain_symbols_file: S<"retain-symbols-file">, Alias<retain_symbols_file>;
327def alias_rpath_R: JoinedOrSeparate<["-"], "R">, Alias<rpath>;360def alias_rpath_R: JoinedOrSeparate<["-"], "R">, Alias<rpath>;
328def alias_rpath_rpath: J<"rpath=">, Alias<rpath>;
329def alias_script_T: JoinedOrSeparate<["-"], "T">, Alias<script>;361def alias_script_T: JoinedOrSeparate<["-"], "T">, Alias<script>;
330def alias_shared_Bshareable: F<"Bshareable">, Alias<shared>;362def alias_shared_Bshareable: F<"Bshareable">, Alias<shared>;
331def alias_soname_h: JoinedOrSeparate<["-"], "h">, Alias<soname>;363def alias_soname_h: JoinedOrSeparate<["-"], "h">, Alias<soname>;
332def alias_soname_soname: S<"soname">, Alias<soname>;
333def alias_sort_section: J<"sort-section=">, Alias<sort_section>;
334def alias_script: J<"script=">, Alias<script>;
335def alias_strip_all: Flag<["-"], "s">, Alias<strip_all>;364def alias_strip_all: Flag<["-"], "s">, Alias<strip_all>;
336def alias_strip_debug_S: Flag<["-"], "S">, Alias<strip_debug>;365def alias_strip_debug_S: Flag<["-"], "S">, Alias<strip_debug>;
337def alias_Tbss: J<"Tbss=">, Alias<Tbss>;
338def alias_Tdata: J<"Tdata=">, Alias<Tdata>;
339def alias_trace: Flag<["-"], "t">, Alias<trace>;366def alias_trace: Flag<["-"], "t">, Alias<trace>;
340def trace_trace_symbol_eq : J<"trace-symbol=">, Alias<trace_symbol>;
341def alias_trace_symbol_y : JoinedOrSeparate<["-"], "y">, Alias<trace_symbol>;367def alias_trace_symbol_y : JoinedOrSeparate<["-"], "y">, Alias<trace_symbol>;
342def alias_Ttext: J<"Ttext=">, Alias<Ttext>;
343def alias_Ttext_segment: S<"Ttext-segment">, Alias<Ttext>;368def alias_Ttext_segment: S<"Ttext-segment">, Alias<Ttext>;
344def alias_Ttext_segment_eq: J<"Ttext-segment=">, Alias<Ttext>;369def alias_Ttext_segment_eq: J<"Ttext-segment=">, Alias<Ttext>;
345def alias_undefined_eq: J<"undefined=">, Alias<undefined>;
346def alias_undefined_u: JoinedOrSeparate<["-"], "u">, Alias<undefined>;370def alias_undefined_u: JoinedOrSeparate<["-"], "u">, Alias<undefined>;
347def alias_version_script_eq: J<"version-script=">, Alias<version_script>;
348def alias_version_V: Flag<["-"], "V">, Alias<version>;371def alias_version_V: Flag<["-"], "V">, Alias<version>;
349def alias_wrap_wrap: J<"wrap=">, Alias<wrap>;
350372
351// Our symbol resolution algorithm handles symbols in archive files differently373// Our symbol resolution algorithm handles symbols in archive files differently
352// than traditional linkers, so we don't need --start-group and --end-group.374// than traditional linkers, so we don't need --start-group and --end-group.
...@@ -369,6 +391,8 @@ def opt_remarks_filename: Separate<["--"], "opt-remarks-filename">,...@@ -369,6 +391,8 @@ def opt_remarks_filename: Separate<["--"], "opt-remarks-filename">,
369 HelpText<"YAML output file for optimization remarks">;391 HelpText<"YAML output file for optimization remarks">;
370def opt_remarks_with_hotness: Flag<["--"], "opt-remarks-with-hotness">,392def opt_remarks_with_hotness: Flag<["--"], "opt-remarks-with-hotness">,
371 HelpText<"Include hotness informations in the optimization remarks file">;393 HelpText<"Include hotness informations in the optimization remarks file">;
394defm plugin_opt: Eq<"plugin-opt">,
395 HelpText<"specifies LTO options for compatibility with GNU linkers">;
372def save_temps: F<"save-temps">;396def save_temps: F<"save-temps">;
373def thinlto_cache_dir: J<"thinlto-cache-dir=">,397def thinlto_cache_dir: J<"thinlto-cache-dir=">,
374 HelpText<"Path to ThinLTO cached object file directory">;398 HelpText<"Path to ThinLTO cached object file directory">;
...@@ -385,18 +409,17 @@ def thinlto_jobs: J<"thinlto-jobs=">, HelpText<"Number of ThinLTO jobs">;...@@ -385,18 +409,17 @@ def thinlto_jobs: J<"thinlto-jobs=">, HelpText<"Number of ThinLTO jobs">;
385// --version output.409// --version output.
386def plugin: S<"plugin">;410def plugin: S<"plugin">;
387def plugin_eq: J<"plugin=">;411def plugin_eq: J<"plugin=">;
388def plugin_opt: S<"plugin-opt">;
389def plugin_opt_eq: J<"plugin-opt=">;
390412
391// Options listed below are silently ignored for now for compatibility.413// Options listed below are silently ignored for now for compatibility.
392def allow_shlib_undefined: F<"allow-shlib-undefined">;414def allow_shlib_undefined: F<"allow-shlib-undefined">;
393def cref: Flag<["--"], "cref">;415def cref: F<"cref">;
394def detect_odr_violations: F<"detect-odr-violations">;416def detect_odr_violations: F<"detect-odr-violations">;
395def g: Flag<["-"], "g">;417def g: Flag<["-"], "g">;
418def long_plt: F<"long-plt">;
396def no_add_needed: F<"no-add-needed">;419def no_add_needed: F<"no-add-needed">;
397def no_allow_shlib_undefined: F<"no-allow-shlib-undefined">;420def no_allow_shlib_undefined: F<"no-allow-shlib-undefined">;
398def no_copy_dt_needed_entries: F<"no-copy-dt-needed-entries">,421def no_copy_dt_needed_entries: F<"no-copy-dt-needed-entries">;
399 Alias<no_add_needed>;422def no_ctors_in_init_array: F<"no-ctors-in-init-array">;
400def no_keep_memory: F<"no-keep-memory">;423def no_keep_memory: F<"no-keep-memory">;
401def no_mmap_output_file: F<"no-mmap-output-file">;424def no_mmap_output_file: F<"no-mmap-output-file">;
402def no_warn_common: F<"no-warn-common">;425def no_warn_common: F<"no-warn-common">;
...@@ -406,9 +429,9 @@ def rpath_link_eq: J<"rpath-link=">;...@@ -406,9 +429,9 @@ def rpath_link_eq: J<"rpath-link=">;
406def sort_common: F<"sort-common">;429def sort_common: F<"sort-common">;
407def stats: F<"stats">;430def stats: F<"stats">;
408def warn_execstack: F<"warn-execstack">;431def warn_execstack: F<"warn-execstack">;
432def warn_once: F<"warn-once">;
409def warn_shared_textrel: F<"warn-shared-textrel">;433def warn_shared_textrel: F<"warn-shared-textrel">;
410def EB : F<"EB">;434def EB : F<"EB">;
411def EL : F<"EL">;435def EL : F<"EL">;
412def G: JoinedOrSeparate<["-"], "G">;436def G: JoinedOrSeparate<["-"], "G">;
413def Qy : F<"Qy">;437def Qy : F<"Qy">;
414
deps/lld/ELF/OutputSections.cpp+318-161
...@@ -10,13 +10,14 @@...@@ -10,13 +10,14 @@
10#include "OutputSections.h"10#include "OutputSections.h"
11#include "Config.h"11#include "Config.h"
12#include "LinkerScript.h"12#include "LinkerScript.h"
13#include "Memory.h"
14#include "Strings.h"13#include "Strings.h"
15#include "SymbolTable.h"14#include "SymbolTable.h"
16#include "SyntheticSections.h"15#include "SyntheticSections.h"
17#include "Target.h"16#include "Target.h"
18#include "Threads.h"17#include "lld/Common/Memory.h"
18#include "lld/Common/Threads.h"
19#include "llvm/BinaryFormat/Dwarf.h"19#include "llvm/BinaryFormat/Dwarf.h"
20#include "llvm/Support/Compression.h"
20#include "llvm/Support/MD5.h"21#include "llvm/Support/MD5.h"
21#include "llvm/Support/MathExtras.h"22#include "llvm/Support/MathExtras.h"
22#include "llvm/Support/SHA1.h"23#include "llvm/Support/SHA1.h"
...@@ -42,7 +43,6 @@ OutputSection *Out::InitArray;...@@ -42,7 +43,6 @@ OutputSection *Out::InitArray;
42OutputSection *Out::FiniArray;43OutputSection *Out::FiniArray;
4344
44std::vector<OutputSection *> elf::OutputSections;45std::vector<OutputSection *> elf::OutputSections;
45std::vector<OutputSectionCommand *> elf::OutputSectionCommands;
4646
47uint32_t OutputSection::getPhdrFlags() const {47uint32_t OutputSection::getPhdrFlags() const {
48 uint32_t Ret = PF_R;48 uint32_t Ret = PF_R;
...@@ -68,210 +68,367 @@ void OutputSection::writeHeaderTo(typename ELFT::Shdr *Shdr) {...@@ -68,210 +68,367 @@ void OutputSection::writeHeaderTo(typename ELFT::Shdr *Shdr) {
68}68}
6969
70OutputSection::OutputSection(StringRef Name, uint32_t Type, uint64_t Flags)70OutputSection::OutputSection(StringRef Name, uint32_t Type, uint64_t Flags)
71 : SectionBase(Output, Name, Flags, /*Entsize*/ 0, /*Alignment*/ 1, Type,71 : BaseCommand(OutputSectionKind),
72 SectionBase(Output, Name, Flags, /*Entsize*/ 0, /*Alignment*/ 1, Type,
72 /*Info*/ 0,73 /*Info*/ 0,
73 /*Link*/ 0),74 /*Link*/ 0),
74 SectionIndex(INT_MAX) {}75 SectionIndex(INT_MAX) {
76 Live = false;
77}
7578
76static uint64_t updateOffset(uint64_t Off, InputSection *S) {79// We allow sections of types listed below to merged into a
77 Off = alignTo(Off, S->Alignment);80// single progbits section. This is typically done by linker
78 S->OutSecOff = Off;81// scripts. Merging nobits and progbits will force disk space
79 return Off + S->getSize();82// to be allocated for nobits sections. Other ones don't require
83// any special treatment on top of progbits, so there doesn't
84// seem to be a harm in merging them.
85static bool canMergeToProgbits(unsigned Type) {
86 return Type == SHT_NOBITS || Type == SHT_PROGBITS || Type == SHT_INIT_ARRAY ||
87 Type == SHT_PREINIT_ARRAY || Type == SHT_FINI_ARRAY ||
88 Type == SHT_NOTE;
80}89}
8190
82void OutputSection::addSection(InputSection *S) {91void OutputSection::addSection(InputSection *IS) {
83 assert(S->Live);92 if (!Live) {
84 Sections.push_back(S);93 // If IS is the first section to be added to this section,
85 S->Parent = this;94 // initialize Type and Entsize from IS.
86 this->updateAlignment(S->Alignment);95 Live = true;
96 Type = IS->Type;
97 Entsize = IS->Entsize;
98 } else {
99 // Otherwise, check if new type or flags are compatible with existing ones.
100 if ((Flags & (SHF_ALLOC | SHF_TLS)) != (IS->Flags & (SHF_ALLOC | SHF_TLS)))
101 error("incompatible section flags for " + Name + "\n>>> " + toString(IS) +
102 ": 0x" + utohexstr(IS->Flags) + "\n>>> output section " + Name +
103 ": 0x" + utohexstr(Flags));
104
105 if (Type != IS->Type) {
106 if (!canMergeToProgbits(Type) || !canMergeToProgbits(IS->Type))
107 error("section type mismatch for " + IS->Name + "\n>>> " +
108 toString(IS) + ": " +
109 getELFSectionTypeName(Config->EMachine, IS->Type) +
110 "\n>>> output section " + Name + ": " +
111 getELFSectionTypeName(Config->EMachine, Type));
112 Type = SHT_PROGBITS;
113 }
114 }
87115
88 // The actual offsets will be computed by assignAddresses. For now, use116 IS->Parent = this;
89 // crude approximation so that it is at least easy for other code to know the117 Flags |= IS->Flags;
90 // section order. It is also used to calculate the output section size early118 Alignment = std::max(Alignment, IS->Alignment);
91 // for compressed debug sections.119 IS->OutSecOff = Size++;
92 this->Size = updateOffset(Size, S);
93120
94 // If this section contains a table of fixed-size entries, sh_entsize121 // If this section contains a table of fixed-size entries, sh_entsize
95 // holds the element size. Consequently, if this contains two or more122 // holds the element size. If it contains elements of different size we
96 // input sections, all of them must have the same sh_entsize. However,123 // set sh_entsize to 0.
97 // you can put different types of input sections into one output124 if (Entsize != IS->Entsize)
98 // sectin by using linker scripts. I don't know what to do here.125 Entsize = 0;
99 // Probably we sholuld handle that as an error. But for now we just126
100 // pick the largest sh_entsize.127 if (!IS->Assigned) {
101 this->Entsize = std::max(this->Entsize, S->Entsize);128 IS->Assigned = true;
129 if (SectionCommands.empty() ||
130 !isa<InputSectionDescription>(SectionCommands.back()))
131 SectionCommands.push_back(make<InputSectionDescription>(""));
132 auto *ISD = cast<InputSectionDescription>(SectionCommands.back());
133 ISD->Sections.push_back(IS);
134 }
102}135}
103136
104static SectionKey createKey(InputSectionBase *C, StringRef OutsecName) {137void elf::sortByOrder(MutableArrayRef<InputSection *> In,
105 // The ELF spec just says138 std::function<int(InputSectionBase *S)> Order) {
106 // ----------------------------------------------------------------139 typedef std::pair<int, InputSection *> Pair;
107 // In the first phase, input sections that match in name, type and140 auto Comp = [](const Pair &A, const Pair &B) { return A.first < B.first; };
108 // attribute flags should be concatenated into single sections.141
109 // ----------------------------------------------------------------142 std::vector<Pair> V;
110 //143 for (InputSection *S : In)
111 // However, it is clear that at least some flags have to be ignored for144 V.push_back({Order(S), S});
112 // section merging. At the very least SHF_GROUP and SHF_COMPRESSED have to be145 std::stable_sort(V.begin(), V.end(), Comp);
113 // ignored. We should not have two output .text sections just because one was
114 // in a group and another was not for example.
115 //
116 // It also seems that that wording was a late addition and didn't get the
117 // necessary scrutiny.
118 //
119 // Merging sections with different flags is expected by some users. One
120 // reason is that if one file has
121 //
122 // int *const bar __attribute__((section(".foo"))) = (int *)0;
123 //
124 // gcc with -fPIC will produce a read only .foo section. But if another
125 // file has
126 //
127 // int zed;
128 // int *const bar __attribute__((section(".foo"))) = (int *)&zed;
129 //
130 // gcc with -fPIC will produce a read write section.
131 //
132 // Last but not least, when using linker script the merge rules are forced by
133 // the script. Unfortunately, linker scripts are name based. This means that
134 // expressions like *(.foo*) can refer to multiple input sections with
135 // different flags. We cannot put them in different output sections or we
136 // would produce wrong results for
137 //
138 // start = .; *(.foo.*) end = .; *(.bar)
139 //
140 // and a mapping of .foo1 and .bar1 to one section and .foo2 and .bar2 to
141 // another. The problem is that there is no way to layout those output
142 // sections such that the .foo sections are the only thing between the start
143 // and end symbols.
144 //
145 // Given the above issues, we instead merge sections by name and error on
146 // incompatible types and flags.
147
148 uint32_t Alignment = 0;
149 uint64_t Flags = 0;
150 if (Config->Relocatable && (C->Flags & SHF_MERGE)) {
151 Alignment = std::max<uint64_t>(C->Alignment, C->Entsize);
152 Flags = C->Flags & (SHF_MERGE | SHF_STRINGS);
153 }
154146
155 return SectionKey{OutsecName, Flags, Alignment};147 for (size_t I = 0; I < V.size(); ++I)
148 In[I] = V[I].second;
156}149}
157150
158OutputSectionFactory::OutputSectionFactory() {}151uint64_t elf::getHeaderSize() {
152 if (Config->OFormatBinary)
153 return 0;
154 return Out::ElfHeader->Size + Out::ProgramHeaders->Size;
155}
159156
160static uint64_t getIncompatibleFlags(uint64_t Flags) {157bool OutputSection::classof(const BaseCommand *C) {
161 return Flags & (SHF_ALLOC | SHF_TLS);158 return C->Kind == OutputSectionKind;
162}159}
163160
164// We allow sections of types listed below to merged into a161void OutputSection::sort(std::function<int(InputSectionBase *S)> Order) {
165// single progbits section. This is typically done by linker162 assert(Live);
166// scripts. Merging nobits and progbits will force disk space163 assert(SectionCommands.size() == 1);
167// to be allocated for nobits sections. Other ones don't require164 sortByOrder(cast<InputSectionDescription>(SectionCommands[0])->Sections,
168// any special treatment on top of progbits, so there doesn't165 Order);
169// seem to be a harm in merging them.
170static bool canMergeToProgbits(unsigned Type) {
171 return Type == SHT_NOBITS || Type == SHT_PROGBITS || Type == SHT_INIT_ARRAY ||
172 Type == SHT_PREINIT_ARRAY || Type == SHT_FINI_ARRAY ||
173 Type == SHT_NOTE;
174}166}
175167
176void elf::reportDiscarded(InputSectionBase *IS) {168// Fill [Buf, Buf + Size) with Filler.
177 if (!Config->PrintGcSections)169// This is used for linker script "=fillexp" command.
178 return;170static void fill(uint8_t *Buf, size_t Size, uint32_t Filler) {
179 message("removing unused section from '" + IS->Name + "' in file '" +171 size_t I = 0;
180 IS->File->getName() + "'");172 for (; I + 4 < Size; I += 4)
173 memcpy(Buf + I, &Filler, 4);
174 memcpy(Buf + I, &Filler, Size - I);
181}175}
182176
183void OutputSectionFactory::addInputSec(InputSectionBase *IS,177// Compress section contents if this section contains debug info.
184 StringRef OutsecName) {178template <class ELFT> void OutputSection::maybeCompress() {
185 // Sections with the SHT_GROUP attribute reach here only when the - r option179 typedef typename ELFT::Chdr Elf_Chdr;
186 // is given. Such sections define "section groups", and InputFiles.cpp has
187 // dedup'ed section groups by their signatures. For the -r, we want to pass
188 // through all SHT_GROUP sections without merging them because merging them
189 // creates broken section contents.
190 if (IS->Type == SHT_GROUP) {
191 OutputSection *Out = nullptr;
192 addInputSec(IS, OutsecName, Out);
193 return;
194 }
195180
196 // Imagine .zed : { *(.foo) *(.bar) } script. Both foo and bar may have181 // Compress only DWARF debug sections.
197 // relocation sections .rela.foo and .rela.bar for example. Most tools do182 if (!Config->CompressDebugSections || (Flags & SHF_ALLOC) ||
198 // not allow multiple REL[A] sections for output section. Hence we183 !Name.startswith(".debug_"))
199 // should combine these relocation sections into single output.
200 // We skip synthetic sections because it can be .rela.dyn/.rela.plt or any
201 // other REL[A] sections created by linker itself.
202 if (!isa<SyntheticSection>(IS) &&
203 (IS->Type == SHT_REL || IS->Type == SHT_RELA)) {
204 auto *Sec = cast<InputSection>(IS);
205 OutputSection *Out = Sec->getRelocatedSection()->getOutputSection();
206 addInputSec(IS, OutsecName, Out->RelocationSection);
207 return;184 return;
208 }
209185
210 SectionKey Key = createKey(IS, OutsecName);186 // Create a section header.
211 OutputSection *&Sec = Map[Key];187 ZDebugHeader.resize(sizeof(Elf_Chdr));
212 addInputSec(IS, OutsecName, Sec);188 auto *Hdr = reinterpret_cast<Elf_Chdr *>(ZDebugHeader.data());
189 Hdr->ch_type = ELFCOMPRESS_ZLIB;
190 Hdr->ch_size = Size;
191 Hdr->ch_addralign = Alignment;
192
193 // Write section contents to a temporary buffer and compress it.
194 std::vector<uint8_t> Buf(Size);
195 writeTo<ELFT>(Buf.data());
196 if (Error E = zlib::compress(toStringRef(Buf), CompressedData))
197 fatal("compress failed: " + llvm::toString(std::move(E)));
198
199 // Update section headers.
200 Size = sizeof(Elf_Chdr) + CompressedData.size();
201 Flags |= SHF_COMPRESSED;
213}202}
214203
215void OutputSectionFactory::addInputSec(InputSectionBase *IS,204static void writeInt(uint8_t *Buf, uint64_t Data, uint64_t Size) {
216 StringRef OutsecName,205 if (Size == 1)
217 OutputSection *&Sec) {206 *Buf = Data;
218 if (!IS->Live) {207 else if (Size == 2)
219 reportDiscarded(IS);208 write16(Buf, Data, Config->Endianness);
209 else if (Size == 4)
210 write32(Buf, Data, Config->Endianness);
211 else if (Size == 8)
212 write64(Buf, Data, Config->Endianness);
213 else
214 llvm_unreachable("unsupported Size argument");
215}
216
217template <class ELFT> void OutputSection::writeTo(uint8_t *Buf) {
218 if (Type == SHT_NOBITS)
219 return;
220
221 Loc = Buf;
222
223 // If -compress-debug-section is specified and if this is a debug seciton,
224 // we've already compressed section contents. If that's the case,
225 // just write it down.
226 if (!CompressedData.empty()) {
227 memcpy(Buf, ZDebugHeader.data(), ZDebugHeader.size());
228 memcpy(Buf + ZDebugHeader.size(), CompressedData.data(),
229 CompressedData.size());
220 return;230 return;
221 }231 }
222232
223 if (Sec) {233 // Write leading padding.
224 if (getIncompatibleFlags(Sec->Flags) != getIncompatibleFlags(IS->Flags))234 std::vector<InputSection *> Sections;
225 error("incompatible section flags for " + Sec->Name + "\n>>> " +235 for (BaseCommand *Cmd : SectionCommands)
226 toString(IS) + ": 0x" + utohexstr(IS->Flags) +236 if (auto *ISD = dyn_cast<InputSectionDescription>(Cmd))
227 "\n>>> output section " + Sec->Name + ": 0x" +237 for (InputSection *IS : ISD->Sections)
228 utohexstr(Sec->Flags));238 if (IS->Live)
229 if (Sec->Type != IS->Type) {239 Sections.push_back(IS);
230 if (canMergeToProgbits(Sec->Type) && canMergeToProgbits(IS->Type))240 uint32_t Filler = getFiller();
231 Sec->Type = SHT_PROGBITS;241 if (Filler)
242 fill(Buf, Sections.empty() ? Size : Sections[0]->OutSecOff, Filler);
243
244 parallelForEachN(0, Sections.size(), [&](size_t I) {
245 InputSection *IS = Sections[I];
246 IS->writeTo<ELFT>(Buf);
247
248 // Fill gaps between sections.
249 if (Filler) {
250 uint8_t *Start = Buf + IS->OutSecOff + IS->getSize();
251 uint8_t *End;
252 if (I + 1 == Sections.size())
253 End = Buf + Size;
232 else254 else
233 error("section type mismatch for " + IS->Name + "\n>>> " +255 End = Buf + Sections[I + 1]->OutSecOff;
234 toString(IS) + ": " +256 fill(Start, End - Start, Filler);
235 getELFSectionTypeName(Config->EMachine, IS->Type) +
236 "\n>>> output section " + Sec->Name + ": " +
237 getELFSectionTypeName(Config->EMachine, Sec->Type));
238 }257 }
239 Sec->Flags |= IS->Flags;258 });
240 } else {259
241 Sec = make<OutputSection>(OutsecName, IS->Type, IS->Flags);260 // Linker scripts may have BYTE()-family commands with which you
242 OutputSections.push_back(Sec);261 // can write arbitrary bytes to the output. Process them if any.
262 for (BaseCommand *Base : SectionCommands)
263 if (auto *Data = dyn_cast<ByteCommand>(Base))
264 writeInt(Buf + Data->Offset, Data->Expression().getValue(), Data->Size);
265}
266
267template <class ELFT>
268static void finalizeShtGroup(OutputSection *OS,
269 InputSection *Section) {
270 assert(Config->Relocatable);
271
272 // sh_link field for SHT_GROUP sections should contain the section index of
273 // the symbol table.
274 OS->Link = InX::SymTab->getParent()->SectionIndex;
275
276 // sh_info then contain index of an entry in symbol table section which
277 // provides signature of the section group.
278 ObjFile<ELFT> *Obj = Section->getFile<ELFT>();
279 ArrayRef<Symbol *> Symbols = Obj->getSymbols();
280 OS->Info = InX::SymTab->getSymbolIndex(Symbols[Section->Info]);
281}
282
283template <class ELFT> void OutputSection::finalize() {
284 InputSection *First = nullptr;
285 for (BaseCommand *Base : SectionCommands) {
286 if (auto *ISD = dyn_cast<InputSectionDescription>(Base)) {
287 if (ISD->Sections.empty())
288 continue;
289 if (First == nullptr)
290 First = ISD->Sections.front();
291 }
292 if (isa<ByteCommand>(Base) && Type == SHT_NOBITS)
293 Type = SHT_PROGBITS;
294 }
295
296 if (Flags & SHF_LINK_ORDER) {
297 // We must preserve the link order dependency of sections with the
298 // SHF_LINK_ORDER flag. The dependency is indicated by the sh_link field. We
299 // need to translate the InputSection sh_link to the OutputSection sh_link,
300 // all InputSections in the OutputSection have the same dependency.
301 if (auto *D = First->getLinkOrderDep())
302 Link = D->getParent()->SectionIndex;
303 }
304
305 if (Type == SHT_GROUP) {
306 finalizeShtGroup<ELFT>(this, First);
307 return;
243 }308 }
244309
245 Sec->addSection(cast<InputSection>(IS));310 if (!Config->CopyRelocs || (Type != SHT_RELA && Type != SHT_REL))
311 return;
312
313 if (isa<SyntheticSection>(First))
314 return;
315
316 Link = InX::SymTab->getParent()->SectionIndex;
317 // sh_info for SHT_REL[A] sections should contain the section header index of
318 // the section to which the relocation applies.
319 InputSectionBase *S = First->getRelocatedSection();
320 Info = S->getOutputSection()->SectionIndex;
321 Flags |= SHF_INFO_LINK;
322}
323
324// Returns true if S matches /Filename.?\.o$/.
325static bool isCrtBeginEnd(StringRef S, StringRef Filename) {
326 if (!S.endswith(".o"))
327 return false;
328 S = S.drop_back(2);
329 if (S.endswith(Filename))
330 return true;
331 return !S.empty() && S.drop_back().endswith(Filename);
246}332}
247333
248OutputSectionFactory::~OutputSectionFactory() {}334static bool isCrtbegin(StringRef S) { return isCrtBeginEnd(S, "crtbegin"); }
335static bool isCrtend(StringRef S) { return isCrtBeginEnd(S, "crtend"); }
249336
250SectionKey DenseMapInfo<SectionKey>::getEmptyKey() {337// .ctors and .dtors are sorted by this priority from highest to lowest.
251 return SectionKey{DenseMapInfo<StringRef>::getEmptyKey(), 0, 0};338//
339// 1. The section was contained in crtbegin (crtbegin contains
340// some sentinel value in its .ctors and .dtors so that the runtime
341// can find the beginning of the sections.)
342//
343// 2. The section has an optional priority value in the form of ".ctors.N"
344// or ".dtors.N" where N is a number. Unlike .{init,fini}_array,
345// they are compared as string rather than number.
346//
347// 3. The section is just ".ctors" or ".dtors".
348//
349// 4. The section was contained in crtend, which contains an end marker.
350//
351// In an ideal world, we don't need this function because .init_array and
352// .ctors are duplicate features (and .init_array is newer.) However, there
353// are too many real-world use cases of .ctors, so we had no choice to
354// support that with this rather ad-hoc semantics.
355static bool compCtors(const InputSection *A, const InputSection *B) {
356 bool BeginA = isCrtbegin(A->File->getName());
357 bool BeginB = isCrtbegin(B->File->getName());
358 if (BeginA != BeginB)
359 return BeginA;
360 bool EndA = isCrtend(A->File->getName());
361 bool EndB = isCrtend(B->File->getName());
362 if (EndA != EndB)
363 return EndB;
364 StringRef X = A->Name;
365 StringRef Y = B->Name;
366 assert(X.startswith(".ctors") || X.startswith(".dtors"));
367 assert(Y.startswith(".ctors") || Y.startswith(".dtors"));
368 X = X.substr(6);
369 Y = Y.substr(6);
370 if (X.empty() && Y.empty())
371 return false;
372 return X < Y;
252}373}
253374
254SectionKey DenseMapInfo<SectionKey>::getTombstoneKey() {375// Sorts input sections by the special rules for .ctors and .dtors.
255 return SectionKey{DenseMapInfo<StringRef>::getTombstoneKey(), 0, 0};376// Unfortunately, the rules are different from the one for .{init,fini}_array.
377// Read the comment above.
378void OutputSection::sortCtorsDtors() {
379 assert(SectionCommands.size() == 1);
380 auto *ISD = cast<InputSectionDescription>(SectionCommands[0]);
381 std::stable_sort(ISD->Sections.begin(), ISD->Sections.end(), compCtors);
256}382}
257383
258unsigned DenseMapInfo<SectionKey>::getHashValue(const SectionKey &Val) {384// If an input string is in the form of "foo.N" where N is a number,
259 return hash_combine(Val.Name, Val.Flags, Val.Alignment);385// return N. Otherwise, returns 65536, which is one greater than the
386// lowest priority.
387int elf::getPriority(StringRef S) {
388 size_t Pos = S.rfind('.');
389 if (Pos == StringRef::npos)
390 return 65536;
391 int V;
392 if (!to_integer(S.substr(Pos + 1), V, 10))
393 return 65536;
394 return V;
260}395}
261396
262bool DenseMapInfo<SectionKey>::isEqual(const SectionKey &LHS,397// Sorts input sections by section name suffixes, so that .foo.N comes
263 const SectionKey &RHS) {398// before .foo.M if N < M. Used to sort .{init,fini}_array.N sections.
264 return DenseMapInfo<StringRef>::isEqual(LHS.Name, RHS.Name) &&399// We want to keep the original order if the priorities are the same
265 LHS.Flags == RHS.Flags && LHS.Alignment == RHS.Alignment;400// because the compiler keeps the original initialization order in a
401// translation unit and we need to respect that.
402// For more detail, read the section of the GCC's manual about init_priority.
403void OutputSection::sortInitFini() {
404 // Sort sections by priority.
405 sort([](InputSectionBase *S) { return getPriority(S->Name); });
266}406}
267407
268uint64_t elf::getHeaderSize() {408uint32_t OutputSection::getFiller() {
269 if (Config->OFormatBinary)409 if (Filler)
270 return 0;410 return *Filler;
271 return Out::ElfHeader->Size + Out::ProgramHeaders->Size;411 if (Flags & SHF_EXECINSTR)
412 return Target->TrapInstr;
413 return 0;
272}414}
273415
274template void OutputSection::writeHeaderTo<ELF32LE>(ELF32LE::Shdr *Shdr);416template void OutputSection::writeHeaderTo<ELF32LE>(ELF32LE::Shdr *Shdr);
275template void OutputSection::writeHeaderTo<ELF32BE>(ELF32BE::Shdr *Shdr);417template void OutputSection::writeHeaderTo<ELF32BE>(ELF32BE::Shdr *Shdr);
276template void OutputSection::writeHeaderTo<ELF64LE>(ELF64LE::Shdr *Shdr);418template void OutputSection::writeHeaderTo<ELF64LE>(ELF64LE::Shdr *Shdr);
277template void OutputSection::writeHeaderTo<ELF64BE>(ELF64BE::Shdr *Shdr);419template void OutputSection::writeHeaderTo<ELF64BE>(ELF64BE::Shdr *Shdr);
420
421template void OutputSection::writeTo<ELF32LE>(uint8_t *Buf);
422template void OutputSection::writeTo<ELF32BE>(uint8_t *Buf);
423template void OutputSection::writeTo<ELF64LE>(uint8_t *Buf);
424template void OutputSection::writeTo<ELF64BE>(uint8_t *Buf);
425
426template void OutputSection::maybeCompress<ELF32LE>();
427template void OutputSection::maybeCompress<ELF32BE>();
428template void OutputSection::maybeCompress<ELF64LE>();
429template void OutputSection::maybeCompress<ELF64BE>();
430
431template void OutputSection::finalize<ELF32LE>();
432template void OutputSection::finalize<ELF32BE>();
433template void OutputSection::finalize<ELF64LE>();
434template void OutputSection::finalize<ELF64BE>();
deps/lld/ELF/OutputSections.h+54-55
...@@ -12,9 +12,10 @@...@@ -12,9 +12,10 @@
1212
13#include "Config.h"13#include "Config.h"
14#include "InputSection.h"14#include "InputSection.h"
15#include "LinkerScript.h"
15#include "Relocations.h"16#include "Relocations.h"
1617
17#include "lld/Core/LLVM.h"18#include "lld/Common/LLVM.h"
18#include "llvm/MC/StringTableBuilder.h"19#include "llvm/MC/StringTableBuilder.h"
19#include "llvm/Object/ELF.h"20#include "llvm/Object/ELF.h"
2021
...@@ -22,23 +23,23 @@ namespace lld {...@@ -22,23 +23,23 @@ namespace lld {
22namespace elf {23namespace elf {
2324
24struct PhdrEntry;25struct PhdrEntry;
25class SymbolBody;26class Symbol;
26struct EhSectionPiece;27struct EhSectionPiece;
27class EhInputSection;28class EhInputSection;
28class InputSection;29class InputSection;
29class InputSectionBase;30class InputSectionBase;
30class MergeInputSection;31class MergeInputSection;
31class OutputSection;32class OutputSection;
32template <class ELFT> class ObjectFile;33template <class ELFT> class ObjFile;
33template <class ELFT> class SharedFile;34template <class ELFT> class SharedFile;
34class SharedSymbol;35class SharedSymbol;
35class DefinedRegular;36class Defined;
3637
37// This represents a section in an output file.38// This represents a section in an output file.
38// It is composed of multiple InputSections.39// It is composed of multiple InputSections.
39// The writer creates multiple OutputSections and assign them unique,40// The writer creates multiple OutputSections and assign them unique,
40// non-overlapping file offsets and VAs.41// non-overlapping file offsets and VAs.
41class OutputSection final : public SectionBase {42class OutputSection final : public BaseCommand, public SectionBase {
42public:43public:
43 OutputSection(StringRef Name, uint32_t Type, uint64_t Flags);44 OutputSection(StringRef Name, uint32_t Type, uint64_t Flags);
4445
...@@ -46,6 +47,8 @@ public:...@@ -46,6 +47,8 @@ public:
46 return S->kind() == SectionBase::Output;47 return S->kind() == SectionBase::Output;
47 }48 }
4849
50 static bool classof(const BaseCommand *C);
51
49 uint64_t getLMA() const { return Addr + LMAOffset; }52 uint64_t getLMA() const { return Addr + LMAOffset; }
50 template <typename ELFT> void writeHeaderTo(typename ELFT::Shdr *SHdr);53 template <typename ELFT> void writeHeaderTo(typename ELFT::Shdr *SHdr);
5154
...@@ -54,42 +57,68 @@ public:...@@ -54,42 +57,68 @@ public:
5457
55 uint32_t getPhdrFlags() const;58 uint32_t getPhdrFlags() const;
5659
57 void updateAlignment(uint32_t Val) {60 // Pointer to the PT_LOAD segment, which this section resides in. This field
58 if (Val > Alignment)61 // is used to correctly compute file offset of a section. When two sections
59 Alignment = Val;62 // share the same load segment, difference between their file offsets should
60 }63 // be equal to difference between their virtual addresses. To compute some
6164 // section offset we use the following formula: Off = Off_first + VA -
62 // Pointer to the first section in PT_LOAD segment, which this section65 // VA_first, where Off_first and VA_first is file offset and VA of first
63 // also resides in. This field is used to correctly compute file offset66 // section in PT_LOAD.
64 // of a section. When two sections share the same load segment, difference67 PhdrEntry *PtLoad = nullptr;
65 // between their file offsets should be equal to difference between their
66 // virtual addresses. To compute some section offset we use the following
67 // formula: Off = Off_first + VA - VA_first.
68 OutputSection *FirstInPtLoad = nullptr;
6968
70 // Pointer to a relocation section for this section. Usually nullptr because69 // Pointer to a relocation section for this section. Usually nullptr because
71 // we consume relocations, but if --emit-relocs is specified (which is rare),70 // we consume relocations, but if --emit-relocs is specified (which is rare),
72 // it may have a non-null value.71 // it may have a non-null value.
73 OutputSection *RelocationSection = nullptr;72 OutputSection *RelocationSection = nullptr;
7473
75 // The following fields correspond to Elf_Shdr members.74 // Initially this field is the number of InputSections that have been added to
75 // the OutputSection so far. Later on, after a call to assignAddresses, it
76 // corresponds to the Elf_Shdr member.
76 uint64_t Size = 0;77 uint64_t Size = 0;
78
79 // The following fields correspond to Elf_Shdr members.
77 uint64_t Offset = 0;80 uint64_t Offset = 0;
78 uint64_t LMAOffset = 0;81 uint64_t LMAOffset = 0;
79 uint64_t Addr = 0;82 uint64_t Addr = 0;
80 uint32_t ShName = 0;83 uint32_t ShName = 0;
8184
82 void addSection(InputSection *S);85 void addSection(InputSection *IS);
83 std::vector<InputSection *> Sections;
8486
87 // Location in the output buffer.
88 uint8_t *Loc = nullptr;
89
90 // The following members are normally only used in linker scripts.
91 MemoryRegion *MemRegion = nullptr;
92 Expr AddrExpr;
93 Expr AlignExpr;
94 Expr LMAExpr;
95 Expr SubalignExpr;
96 std::vector<BaseCommand *> SectionCommands;
97 std::vector<StringRef> Phdrs;
98 llvm::Optional<uint32_t> Filler;
99 ConstraintKind Constraint = ConstraintKind::NoConstraint;
100 std::string Location;
101 std::string MemoryRegionName;
102 bool Noload = false;
103
104 template <class ELFT> void finalize();
105 template <class ELFT> void writeTo(uint8_t *Buf);
106 template <class ELFT> void maybeCompress();
107
108 void sort(std::function<int(InputSectionBase *S)> Order);
109 void sortInitFini();
110 void sortCtorsDtors();
111
112private:
85 // Used for implementation of --compress-debug-sections option.113 // Used for implementation of --compress-debug-sections option.
86 std::vector<uint8_t> ZDebugHeader;114 std::vector<uint8_t> ZDebugHeader;
87 llvm::SmallVector<char, 1> CompressedData;115 llvm::SmallVector<char, 1> CompressedData;
88116
89 // Location in the output buffer.117 uint32_t getFiller();
90 uint8_t *Loc = nullptr;
91};118};
92119
120int getPriority(StringRef S);
121
93// All output sections that are handled by the linker specially are122// All output sections that are handled by the linker specially are
94// globally accessible. Writer initializes them, so don't use them123// globally accessible. Writer initializes them, so don't use them
95// until Writer is initialized.124// until Writer is initialized.
...@@ -106,47 +135,17 @@ struct Out {...@@ -106,47 +135,17 @@ struct Out {
106 static OutputSection *FiniArray;135 static OutputSection *FiniArray;
107};136};
108137
109struct SectionKey {
110 StringRef Name;
111 uint64_t Flags;
112 uint32_t Alignment;
113};
114} // namespace elf138} // namespace elf
115} // namespace lld139} // namespace lld
116namespace llvm {140
117template <> struct DenseMapInfo<lld::elf::SectionKey> {
118 static lld::elf::SectionKey getEmptyKey();
119 static lld::elf::SectionKey getTombstoneKey();
120 static unsigned getHashValue(const lld::elf::SectionKey &Val);
121 static bool isEqual(const lld::elf::SectionKey &LHS,
122 const lld::elf::SectionKey &RHS);
123};
124} // namespace llvm
125namespace lld {141namespace lld {
126namespace elf {142namespace elf {
127143
128// This class knows how to create an output section for a given
129// input section. Output section type is determined by various
130// factors, including input section's sh_flags, sh_type and
131// linker scripts.
132class OutputSectionFactory {
133public:
134 OutputSectionFactory();
135 ~OutputSectionFactory();
136
137 void addInputSec(InputSectionBase *IS, StringRef OutsecName);
138 void addInputSec(InputSectionBase *IS, StringRef OutsecName,
139 OutputSection *&Sec);
140
141private:
142 llvm::SmallDenseMap<SectionKey, OutputSection *> Map;
143};
144
145uint64_t getHeaderSize();144uint64_t getHeaderSize();
146void reportDiscarded(InputSectionBase *IS);145void sortByOrder(llvm::MutableArrayRef<InputSection *> In,
146 std::function<int(InputSectionBase *S)> Order);
147147
148extern std::vector<OutputSection *> OutputSections;148extern std::vector<OutputSection *> OutputSections;
149extern std::vector<OutputSectionCommand *> OutputSectionCommands;
150} // namespace elf149} // namespace elf
151} // namespace lld150} // namespace lld
152151
deps/lld/ELF/Relocations.cpp+718-437
...@@ -44,13 +44,14 @@...@@ -44,13 +44,14 @@
44#include "Relocations.h"44#include "Relocations.h"
45#include "Config.h"45#include "Config.h"
46#include "LinkerScript.h"46#include "LinkerScript.h"
47#include "Memory.h"
48#include "OutputSections.h"47#include "OutputSections.h"
49#include "Strings.h"48#include "Strings.h"
50#include "SymbolTable.h"49#include "SymbolTable.h"
50#include "Symbols.h"
51#include "SyntheticSections.h"51#include "SyntheticSections.h"
52#include "Target.h"52#include "Target.h"
53#include "Thunks.h"53#include "Thunks.h"
54#include "lld/Common/Memory.h"
5455
55#include "llvm/Support/Endian.h"56#include "llvm/Support/Endian.h"
56#include "llvm/Support/raw_ostream.h"57#include "llvm/Support/raw_ostream.h"
...@@ -69,31 +70,35 @@ using namespace lld::elf;...@@ -69,31 +70,35 @@ using namespace lld::elf;
69// >>> defined in /home/alice/src/foo.o70// >>> defined in /home/alice/src/foo.o
70// >>> referenced by bar.c:12 (/home/alice/src/bar.c:12)71// >>> referenced by bar.c:12 (/home/alice/src/bar.c:12)
71// >>> /home/alice/src/bar.o:(.text+0x1)72// >>> /home/alice/src/bar.o:(.text+0x1)
72template <class ELFT>73static std::string getLocation(InputSectionBase &S, const Symbol &Sym,
73static std::string getLocation(InputSectionBase &S, const SymbolBody &Sym,
74 uint64_t Off) {74 uint64_t Off) {
75 std::string Msg =75 std::string Msg =
76 "\n>>> defined in " + toString(Sym.File) + "\n>>> referenced by ";76 "\n>>> defined in " + toString(Sym.File) + "\n>>> referenced by ";
77 std::string Src = S.getSrcMsg<ELFT>(Off);77 std::string Src = S.getSrcMsg(Sym, Off);
78 if (!Src.empty())78 if (!Src.empty())
79 Msg += Src + "\n>>> ";79 Msg += Src + "\n>>> ";
80 return Msg + S.getObjMsg<ELFT>(Off);80 return Msg + S.getObjMsg(Off);
81}81}
8282
83static bool isPreemptible(const SymbolBody &Body, uint32_t Type) {83// This is a MIPS-specific rule.
84 // In case of MIPS GP-relative relocations always resolve to a definition84//
85 // in a regular input file, ignoring the one-definition rule. So we,85// In case of MIPS GP-relative relocations always resolve to a definition
86 // for example, should not attempt to create a dynamic relocation even86// in a regular input file, ignoring the one-definition rule. So we,
87 // if the target symbol is preemptible. There are two two MIPS GP-relative87// for example, should not attempt to create a dynamic relocation even
88 // relocations R_MIPS_GPREL16 and R_MIPS_GPREL32. But only R_MIPS_GPREL1688// if the target symbol is preemptible. There are two two MIPS GP-relative
89 // can be against a preemptible symbol.89// relocations R_MIPS_GPREL16 and R_MIPS_GPREL32. But only R_MIPS_GPREL16
90 // To get MIPS relocation type we apply 0xff mask. In case of O32 ABI all90// can be against a preemptible symbol.
91 // relocation types occupy eight bit. In case of N64 ABI we extract first91//
92 // relocation from 3-in-1 packet because only the first relocation can92// To get MIPS relocation type we apply 0xff mask. In case of O32 ABI all
93 // be against a real symbol.93// relocation types occupy eight bit. In case of N64 ABI we extract first
94 if (Config->EMachine == EM_MIPS && (Type & 0xff) == R_MIPS_GPREL16)94// relocation from 3-in-1 packet because only the first relocation can
95// be against a real symbol.
96static bool isMipsGprel(RelType Type) {
97 if (Config->EMachine != EM_MIPS)
95 return false;98 return false;
96 return Body.isPreemptible();99 Type &= 0xff;
100 return Type == R_MIPS_GPREL16 || Type == R_MICROMIPS_GPREL16 ||
101 Type == R_MICROMIPS_GPREL7_S2;
97}102}
98103
99// This function is similar to the `handleTlsRelocation`. MIPS does not104// This function is similar to the `handleTlsRelocation`. MIPS does not
...@@ -103,28 +108,28 @@ static bool isPreemptible(const SymbolBody &Body, uint32_t Type) {...@@ -103,28 +108,28 @@ static bool isPreemptible(const SymbolBody &Body, uint32_t Type) {
103// Mips has a custom MipsGotSection that handles the writing of GOT entries108// Mips has a custom MipsGotSection that handles the writing of GOT entries
104// without dynamic relocations.109// without dynamic relocations.
105template <class ELFT>110template <class ELFT>
106static unsigned handleMipsTlsRelocation(uint32_t Type, SymbolBody &Body,111static unsigned handleMipsTlsRelocation(RelType Type, Symbol &Sym,
107 InputSectionBase &C, uint64_t Offset,112 InputSectionBase &C, uint64_t Offset,
108 int64_t Addend, RelExpr Expr) {113 int64_t Addend, RelExpr Expr) {
109 if (Expr == R_MIPS_TLSLD) {114 if (Expr == R_MIPS_TLSLD) {
110 if (InX::MipsGot->addTlsIndex() && Config->Pic)115 if (InX::MipsGot->addTlsIndex() && Config->Pic)
111 In<ELFT>::RelaDyn->addReloc({Target->TlsModuleIndexRel, InX::MipsGot,116 InX::RelaDyn->addReloc({Target->TlsModuleIndexRel, InX::MipsGot,
112 InX::MipsGot->getTlsIndexOff(), false,117 InX::MipsGot->getTlsIndexOff(), false, nullptr,
113 nullptr, 0});118 0});
114 C.Relocations.push_back({Expr, Type, Offset, Addend, &Body});119 C.Relocations.push_back({Expr, Type, Offset, Addend, &Sym});
115 return 1;120 return 1;
116 }121 }
117122
118 if (Expr == R_MIPS_TLSGD) {123 if (Expr == R_MIPS_TLSGD) {
119 if (InX::MipsGot->addDynTlsEntry(Body) && Body.isPreemptible()) {124 if (InX::MipsGot->addDynTlsEntry(Sym) && Sym.IsPreemptible) {
120 uint64_t Off = InX::MipsGot->getGlobalDynOffset(Body);125 uint64_t Off = InX::MipsGot->getGlobalDynOffset(Sym);
121 In<ELFT>::RelaDyn->addReloc(126 InX::RelaDyn->addReloc(
122 {Target->TlsModuleIndexRel, InX::MipsGot, Off, false, &Body, 0});127 {Target->TlsModuleIndexRel, InX::MipsGot, Off, false, &Sym, 0});
123 if (Body.isPreemptible())128 if (Sym.IsPreemptible)
124 In<ELFT>::RelaDyn->addReloc({Target->TlsOffsetRel, InX::MipsGot,129 InX::RelaDyn->addReloc({Target->TlsOffsetRel, InX::MipsGot,
125 Off + Config->Wordsize, false, &Body, 0});130 Off + Config->Wordsize, false, &Sym, 0});
126 }131 }
127 C.Relocations.push_back({Expr, Type, Offset, Addend, &Body});132 C.Relocations.push_back({Expr, Type, Offset, Addend, &Sym});
128 return 1;133 return 1;
129 }134 }
130 return 0;135 return 0;
...@@ -145,19 +150,18 @@ static unsigned handleMipsTlsRelocation(uint32_t Type, SymbolBody &Body,...@@ -145,19 +150,18 @@ static unsigned handleMipsTlsRelocation(uint32_t Type, SymbolBody &Body,
145// GOT[e0] Module Index (Used to find pointer to TLS block at run-time)150// GOT[e0] Module Index (Used to find pointer to TLS block at run-time)
146// GOT[e1] Offset of symbol in TLS block151// GOT[e1] Offset of symbol in TLS block
147template <class ELFT>152template <class ELFT>
148static unsigned handleARMTlsRelocation(uint32_t Type, SymbolBody &Body,153static unsigned handleARMTlsRelocation(RelType Type, Symbol &Sym,
149 InputSectionBase &C, uint64_t Offset,154 InputSectionBase &C, uint64_t Offset,
150 int64_t Addend, RelExpr Expr) {155 int64_t Addend, RelExpr Expr) {
151 // The Dynamic TLS Module Index Relocation for a symbol defined in an156 // The Dynamic TLS Module Index Relocation for a symbol defined in an
152 // executable is always 1. If the target Symbol is not preemtible then157 // executable is always 1. If the target Symbol is not preemptible then
153 // we know the offset into the TLS block at static link time.158 // we know the offset into the TLS block at static link time.
154 bool NeedDynId = Body.isPreemptible() || Config->Shared;159 bool NeedDynId = Sym.IsPreemptible || Config->Shared;
155 bool NeedDynOff = Body.isPreemptible();160 bool NeedDynOff = Sym.IsPreemptible;
156161
157 auto AddTlsReloc = [&](uint64_t Off, uint32_t Type, SymbolBody *Dest,162 auto AddTlsReloc = [&](uint64_t Off, RelType Type, Symbol *Dest, bool Dyn) {
158 bool Dyn) {
159 if (Dyn)163 if (Dyn)
160 In<ELFT>::RelaDyn->addReloc({Type, InX::Got, Off, false, Dest, 0});164 InX::RelaDyn->addReloc({Type, InX::Got, Off, false, Dest, 0});
161 else165 else
162 InX::Got->Relocations.push_back({R_ABS, Type, Off, 0, Dest});166 InX::Got->Relocations.push_back({R_ABS, Type, Off, 0, Dest});
163 };167 };
...@@ -168,8 +172,8 @@ static unsigned handleARMTlsRelocation(uint32_t Type, SymbolBody &Body,...@@ -168,8 +172,8 @@ static unsigned handleARMTlsRelocation(uint32_t Type, SymbolBody &Body,
168 // module. GOT[e1] is unused. There only needs to be one module index entry.172 // module. GOT[e1] is unused. There only needs to be one module index entry.
169 if (Expr == R_TLSLD_PC && InX::Got->addTlsIndex()) {173 if (Expr == R_TLSLD_PC && InX::Got->addTlsIndex()) {
170 AddTlsReloc(InX::Got->getTlsIndexOff(), Target->TlsModuleIndexRel,174 AddTlsReloc(InX::Got->getTlsIndexOff(), Target->TlsModuleIndexRel,
171 NeedDynId ? nullptr : &Body, NeedDynId);175 NeedDynId ? nullptr : &Sym, NeedDynId);
172 C.Relocations.push_back({Expr, Type, Offset, Addend, &Body});176 C.Relocations.push_back({Expr, Type, Offset, Addend, &Sym});
173 return 1;177 return 1;
174 }178 }
175179
...@@ -177,13 +181,13 @@ static unsigned handleARMTlsRelocation(uint32_t Type, SymbolBody &Body,...@@ -177,13 +181,13 @@ static unsigned handleARMTlsRelocation(uint32_t Type, SymbolBody &Body,
177 // the module index and offset of symbol in TLS block we can fill these in181 // the module index and offset of symbol in TLS block we can fill these in
178 // using static GOT relocations.182 // using static GOT relocations.
179 if (Expr == R_TLSGD_PC) {183 if (Expr == R_TLSGD_PC) {
180 if (InX::Got->addDynTlsEntry(Body)) {184 if (InX::Got->addDynTlsEntry(Sym)) {
181 uint64_t Off = InX::Got->getGlobalDynOffset(Body);185 uint64_t Off = InX::Got->getGlobalDynOffset(Sym);
182 AddTlsReloc(Off, Target->TlsModuleIndexRel, &Body, NeedDynId);186 AddTlsReloc(Off, Target->TlsModuleIndexRel, &Sym, NeedDynId);
183 AddTlsReloc(Off + Config->Wordsize, Target->TlsOffsetRel, &Body,187 AddTlsReloc(Off + Config->Wordsize, Target->TlsOffsetRel, &Sym,
184 NeedDynOff);188 NeedDynOff);
185 }189 }
186 C.Relocations.push_back({Expr, Type, Offset, Addend, &Body});190 C.Relocations.push_back({Expr, Type, Offset, Addend, &Sym});
187 return 1;191 return 1;
188 }192 }
189 return 0;193 return 0;
...@@ -192,29 +196,28 @@ static unsigned handleARMTlsRelocation(uint32_t Type, SymbolBody &Body,...@@ -192,29 +196,28 @@ static unsigned handleARMTlsRelocation(uint32_t Type, SymbolBody &Body,
192// Returns the number of relocations processed.196// Returns the number of relocations processed.
193template <class ELFT>197template <class ELFT>
194static unsigned198static unsigned
195handleTlsRelocation(uint32_t Type, SymbolBody &Body, InputSectionBase &C,199handleTlsRelocation(RelType Type, Symbol &Sym, InputSectionBase &C,
196 typename ELFT::uint Offset, int64_t Addend, RelExpr Expr) {200 typename ELFT::uint Offset, int64_t Addend, RelExpr Expr) {
197 if (!(C.Flags & SHF_ALLOC))201 if (!(C.Flags & SHF_ALLOC))
198 return 0;202 return 0;
199203
200 if (!Body.isTls())204 if (!Sym.isTls())
201 return 0;205 return 0;
202206
203 if (Config->EMachine == EM_ARM)207 if (Config->EMachine == EM_ARM)
204 return handleARMTlsRelocation<ELFT>(Type, Body, C, Offset, Addend, Expr);208 return handleARMTlsRelocation<ELFT>(Type, Sym, C, Offset, Addend, Expr);
205 if (Config->EMachine == EM_MIPS)209 if (Config->EMachine == EM_MIPS)
206 return handleMipsTlsRelocation<ELFT>(Type, Body, C, Offset, Addend, Expr);210 return handleMipsTlsRelocation<ELFT>(Type, Sym, C, Offset, Addend, Expr);
207211
208 bool IsPreemptible = isPreemptible(Body, Type);
209 if (isRelExprOneOf<R_TLSDESC, R_TLSDESC_PAGE, R_TLSDESC_CALL>(Expr) &&212 if (isRelExprOneOf<R_TLSDESC, R_TLSDESC_PAGE, R_TLSDESC_CALL>(Expr) &&
210 Config->Shared) {213 Config->Shared) {
211 if (InX::Got->addDynTlsEntry(Body)) {214 if (InX::Got->addDynTlsEntry(Sym)) {
212 uint64_t Off = InX::Got->getGlobalDynOffset(Body);215 uint64_t Off = InX::Got->getGlobalDynOffset(Sym);
213 In<ELFT>::RelaDyn->addReloc(216 InX::RelaDyn->addReloc(
214 {Target->TlsDescRel, InX::Got, Off, !IsPreemptible, &Body, 0});217 {Target->TlsDescRel, InX::Got, Off, !Sym.IsPreemptible, &Sym, 0});
215 }218 }
216 if (Expr != R_TLSDESC_CALL)219 if (Expr != R_TLSDESC_CALL)
217 C.Relocations.push_back({Expr, Type, Offset, Addend, &Body});220 C.Relocations.push_back({Expr, Type, Offset, Addend, &Sym});
218 return 1;221 return 1;
219 }222 }
220223
...@@ -222,61 +225,59 @@ handleTlsRelocation(uint32_t Type, SymbolBody &Body, InputSectionBase &C,...@@ -222,61 +225,59 @@ handleTlsRelocation(uint32_t Type, SymbolBody &Body, InputSectionBase &C,
222 // Local-Dynamic relocs can be relaxed to Local-Exec.225 // Local-Dynamic relocs can be relaxed to Local-Exec.
223 if (!Config->Shared) {226 if (!Config->Shared) {
224 C.Relocations.push_back(227 C.Relocations.push_back(
225 {R_RELAX_TLS_LD_TO_LE, Type, Offset, Addend, &Body});228 {R_RELAX_TLS_LD_TO_LE, Type, Offset, Addend, &Sym});
226 return 2;229 return 2;
227 }230 }
228 if (InX::Got->addTlsIndex())231 if (InX::Got->addTlsIndex())
229 In<ELFT>::RelaDyn->addReloc({Target->TlsModuleIndexRel, InX::Got,232 InX::RelaDyn->addReloc({Target->TlsModuleIndexRel, InX::Got,
230 InX::Got->getTlsIndexOff(), false, nullptr,233 InX::Got->getTlsIndexOff(), false, nullptr, 0});
231 0});234 C.Relocations.push_back({Expr, Type, Offset, Addend, &Sym});
232 C.Relocations.push_back({Expr, Type, Offset, Addend, &Body});
233 return 1;235 return 1;
234 }236 }
235237
236 // Local-Dynamic relocs can be relaxed to Local-Exec.238 // Local-Dynamic relocs can be relaxed to Local-Exec.
237 if (isRelExprOneOf<R_ABS, R_TLSLD, R_TLSLD_PC>(Expr) && !Config->Shared) {239 if (isRelExprOneOf<R_ABS, R_TLSLD, R_TLSLD_PC>(Expr) && !Config->Shared) {
238 C.Relocations.push_back(240 C.Relocations.push_back({R_RELAX_TLS_LD_TO_LE, Type, Offset, Addend, &Sym});
239 {R_RELAX_TLS_LD_TO_LE, Type, Offset, Addend, &Body});
240 return 1;241 return 1;
241 }242 }
242243
243 if (isRelExprOneOf<R_TLSDESC, R_TLSDESC_PAGE, R_TLSDESC_CALL, R_TLSGD,244 if (isRelExprOneOf<R_TLSDESC, R_TLSDESC_PAGE, R_TLSDESC_CALL, R_TLSGD,
244 R_TLSGD_PC>(Expr)) {245 R_TLSGD_PC>(Expr)) {
245 if (Config->Shared) {246 if (Config->Shared) {
246 if (InX::Got->addDynTlsEntry(Body)) {247 if (InX::Got->addDynTlsEntry(Sym)) {
247 uint64_t Off = InX::Got->getGlobalDynOffset(Body);248 uint64_t Off = InX::Got->getGlobalDynOffset(Sym);
248 In<ELFT>::RelaDyn->addReloc(249 InX::RelaDyn->addReloc(
249 {Target->TlsModuleIndexRel, InX::Got, Off, false, &Body, 0});250 {Target->TlsModuleIndexRel, InX::Got, Off, false, &Sym, 0});
250251
251 // If the symbol is preemptible we need the dynamic linker to write252 // If the symbol is preemptible we need the dynamic linker to write
252 // the offset too.253 // the offset too.
253 uint64_t OffsetOff = Off + Config->Wordsize;254 uint64_t OffsetOff = Off + Config->Wordsize;
254 if (IsPreemptible)255 if (Sym.IsPreemptible)
255 In<ELFT>::RelaDyn->addReloc(256 InX::RelaDyn->addReloc(
256 {Target->TlsOffsetRel, InX::Got, OffsetOff, false, &Body, 0});257 {Target->TlsOffsetRel, InX::Got, OffsetOff, false, &Sym, 0});
257 else258 else
258 InX::Got->Relocations.push_back(259 InX::Got->Relocations.push_back(
259 {R_ABS, Target->TlsOffsetRel, OffsetOff, 0, &Body});260 {R_ABS, Target->TlsOffsetRel, OffsetOff, 0, &Sym});
260 }261 }
261 C.Relocations.push_back({Expr, Type, Offset, Addend, &Body});262 C.Relocations.push_back({Expr, Type, Offset, Addend, &Sym});
262 return 1;263 return 1;
263 }264 }
264265
265 // Global-Dynamic relocs can be relaxed to Initial-Exec or Local-Exec266 // Global-Dynamic relocs can be relaxed to Initial-Exec or Local-Exec
266 // depending on the symbol being locally defined or not.267 // depending on the symbol being locally defined or not.
267 if (IsPreemptible) {268 if (Sym.IsPreemptible) {
268 C.Relocations.push_back(269 C.Relocations.push_back(
269 {Target->adjustRelaxExpr(Type, nullptr, R_RELAX_TLS_GD_TO_IE), Type,270 {Target->adjustRelaxExpr(Type, nullptr, R_RELAX_TLS_GD_TO_IE), Type,
270 Offset, Addend, &Body});271 Offset, Addend, &Sym});
271 if (!Body.isInGot()) {272 if (!Sym.isInGot()) {
272 InX::Got->addEntry(Body);273 InX::Got->addEntry(Sym);
273 In<ELFT>::RelaDyn->addReloc({Target->TlsGotRel, InX::Got,274 InX::RelaDyn->addReloc(
274 Body.getGotOffset(), false, &Body, 0});275 {Target->TlsGotRel, InX::Got, Sym.getGotOffset(), false, &Sym, 0});
275 }276 }
276 } else {277 } else {
277 C.Relocations.push_back(278 C.Relocations.push_back(
278 {Target->adjustRelaxExpr(Type, nullptr, R_RELAX_TLS_GD_TO_LE), Type,279 {Target->adjustRelaxExpr(Type, nullptr, R_RELAX_TLS_GD_TO_LE), Type,
279 Offset, Addend, &Body});280 Offset, Addend, &Sym});
280 }281 }
281 return Target->TlsGdRelaxSkip;282 return Target->TlsGdRelaxSkip;
282 }283 }
...@@ -284,9 +285,8 @@ handleTlsRelocation(uint32_t Type, SymbolBody &Body, InputSectionBase &C,...@@ -284,9 +285,8 @@ handleTlsRelocation(uint32_t Type, SymbolBody &Body, InputSectionBase &C,
284 // Initial-Exec relocs can be relaxed to Local-Exec if the symbol is locally285 // Initial-Exec relocs can be relaxed to Local-Exec if the symbol is locally
285 // defined.286 // defined.
286 if (isRelExprOneOf<R_GOT, R_GOT_FROM_END, R_GOT_PC, R_GOT_PAGE_PC>(Expr) &&287 if (isRelExprOneOf<R_GOT, R_GOT_FROM_END, R_GOT_PC, R_GOT_PAGE_PC>(Expr) &&
287 !Config->Shared && !IsPreemptible) {288 !Config->Shared && !Sym.IsPreemptible) {
288 C.Relocations.push_back(289 C.Relocations.push_back({R_RELAX_TLS_IE_TO_LE, Type, Offset, Addend, &Sym});
289 {R_RELAX_TLS_IE_TO_LE, Type, Offset, Addend, &Body});
290 return 1;290 return 1;
291 }291 }
292292
...@@ -295,12 +295,22 @@ handleTlsRelocation(uint32_t Type, SymbolBody &Body, InputSectionBase &C,...@@ -295,12 +295,22 @@ handleTlsRelocation(uint32_t Type, SymbolBody &Body, InputSectionBase &C,
295 return 0;295 return 0;
296}296}
297297
298static uint32_t getMipsPairType(uint32_t Type, const SymbolBody &Sym) {298static RelType getMipsPairType(RelType Type, bool IsLocal) {
299 switch (Type) {299 switch (Type) {
300 case R_MIPS_HI16:300 case R_MIPS_HI16:
301 return R_MIPS_LO16;301 return R_MIPS_LO16;
302 case R_MIPS_GOT16:302 case R_MIPS_GOT16:
303 return Sym.isLocal() ? R_MIPS_LO16 : R_MIPS_NONE;303 // In case of global symbol, the R_MIPS_GOT16 relocation does not
304 // have a pair. Each global symbol has a unique entry in the GOT
305 // and a corresponding instruction with help of the R_MIPS_GOT16
306 // relocation loads an address of the symbol. In case of local
307 // symbol, the R_MIPS_GOT16 relocation creates a GOT entry to hold
308 // the high 16 bits of the symbol's value. A paired R_MIPS_LO16
309 // relocations handle low 16 bits of the address. That allows
310 // to allocate only one GOT entry for every 64 KBytes of local data.
311 return IsLocal ? R_MIPS_LO16 : R_MIPS_NONE;
312 case R_MICROMIPS_GOT16:
313 return IsLocal ? R_MICROMIPS_LO16 : R_MIPS_NONE;
304 case R_MIPS_PCHI16:314 case R_MIPS_PCHI16:
305 return R_MIPS_PCLO16;315 return R_MIPS_PCLO16;
306 case R_MICROMIPS_HI16:316 case R_MICROMIPS_HI16:
...@@ -312,16 +322,16 @@ static uint32_t getMipsPairType(uint32_t Type, const SymbolBody &Sym) {...@@ -312,16 +322,16 @@ static uint32_t getMipsPairType(uint32_t Type, const SymbolBody &Sym) {
312322
313// True if non-preemptable symbol always has the same value regardless of where323// True if non-preemptable symbol always has the same value regardless of where
314// the DSO is loaded.324// the DSO is loaded.
315static bool isAbsolute(const SymbolBody &Body) {325static bool isAbsolute(const Symbol &Sym) {
316 if (Body.isUndefined())326 if (Sym.isUndefWeak())
317 return !Body.isLocal() && Body.symbol()->isWeak();327 return true;
318 if (const auto *DR = dyn_cast<DefinedRegular>(&Body))328 if (const auto *DR = dyn_cast<Defined>(&Sym))
319 return DR->Section == nullptr; // Absolute symbol.329 return DR->Section == nullptr; // Absolute symbol.
320 return false;330 return false;
321}331}
322332
323static bool isAbsoluteValue(const SymbolBody &Body) {333static bool isAbsoluteValue(const Symbol &Sym) {
324 return isAbsolute(Body) || Body.isTls();334 return isAbsolute(Sym) || Sym.isTls();
325}335}
326336
327// Returns true if Expr refers a PLT entry.337// Returns true if Expr refers a PLT entry.
...@@ -354,12 +364,10 @@ static bool isRelExpr(RelExpr Expr) {...@@ -354,12 +364,10 @@ static bool isRelExpr(RelExpr Expr) {
354//364//
355// If this function returns false, that means we need to emit a365// If this function returns false, that means we need to emit a
356// dynamic relocation so that the relocation will be fixed at load-time.366// dynamic relocation so that the relocation will be fixed at load-time.
357template <class ELFT>367static bool isStaticLinkTimeConstant(RelExpr E, RelType Type, const Symbol &Sym,
358static bool isStaticLinkTimeConstant(RelExpr E, uint32_t Type,
359 const SymbolBody &Body,
360 InputSectionBase &S, uint64_t RelOff) {368 InputSectionBase &S, uint64_t RelOff) {
361 // These expressions always compute a constant369 // These expressions always compute a constant
362 if (isRelExprOneOf<R_SIZE, R_GOT_FROM_END, R_GOT_OFF, R_MIPS_GOT_LOCAL_PAGE,370 if (isRelExprOneOf<R_GOT_FROM_END, R_GOT_OFF, R_MIPS_GOT_LOCAL_PAGE,
363 R_MIPS_GOT_OFF, R_MIPS_GOT_OFF32, R_MIPS_GOT_GP_PC,371 R_MIPS_GOT_OFF, R_MIPS_GOT_OFF32, R_MIPS_GOT_GP_PC,
364 R_MIPS_TLSGD, R_GOT_PAGE_PC, R_GOT_PC, R_GOTONLY_PC,372 R_MIPS_TLSGD, R_GOT_PAGE_PC, R_GOT_PC, R_GOTONLY_PC,
365 R_GOTONLY_PC_FROM_END, R_PLT_PC, R_TLSGD_PC, R_TLSGD,373 R_GOTONLY_PC_FROM_END, R_PLT_PC, R_TLSGD_PC, R_TLSGD,
...@@ -371,14 +379,18 @@ static bool isStaticLinkTimeConstant(RelExpr E, uint32_t Type,...@@ -371,14 +379,18 @@ static bool isStaticLinkTimeConstant(RelExpr E, uint32_t Type,
371 if (E == R_GOT || E == R_PLT || E == R_TLSDESC)379 if (E == R_GOT || E == R_PLT || E == R_TLSDESC)
372 return Target->usesOnlyLowPageBits(Type) || !Config->Pic;380 return Target->usesOnlyLowPageBits(Type) || !Config->Pic;
373381
374 if (isPreemptible(Body, Type))382 if (Sym.IsPreemptible)
375 return false;383 return false;
376 if (!Config->Pic)384 if (!Config->Pic)
377 return true;385 return true;
378386
387 // The size of a non preemptible symbol is a constant.
388 if (E == R_SIZE)
389 return true;
390
379 // For the target and the relocation, we want to know if they are391 // For the target and the relocation, we want to know if they are
380 // absolute or relative.392 // absolute or relative.
381 bool AbsVal = isAbsoluteValue(Body);393 bool AbsVal = isAbsoluteValue(Sym);
382 bool RelE = isRelExpr(E);394 bool RelE = isRelExpr(E);
383 if (AbsVal && !RelE)395 if (AbsVal && !RelE)
384 return true;396 return true;
...@@ -396,11 +408,11 @@ static bool isStaticLinkTimeConstant(RelExpr E, uint32_t Type,...@@ -396,11 +408,11 @@ static bool isStaticLinkTimeConstant(RelExpr E, uint32_t Type,
396 // between start of a function and '_gp' value and defined as absolute just408 // between start of a function and '_gp' value and defined as absolute just
397 // to simplify the code.409 // to simplify the code.
398 assert(AbsVal && RelE);410 assert(AbsVal && RelE);
399 if (Body.isUndefined() && !Body.isLocal() && Body.symbol()->isWeak())411 if (Sym.isUndefWeak())
400 return true;412 return true;
401413
402 error("relocation " + toString(Type) + " cannot refer to absolute symbol: " +414 error("relocation " + toString(Type) + " cannot refer to absolute symbol: " +
403 toString(Body) + getLocation<ELFT>(S, Body, RelOff));415 toString(Sym) + getLocation(S, Sym, RelOff));
404 return true;416 return true;
405}417}
406418
...@@ -431,14 +443,13 @@ static RelExpr fromPlt(RelExpr Expr) {...@@ -431,14 +443,13 @@ static RelExpr fromPlt(RelExpr Expr) {
431// Returns true if a given shared symbol is in a read-only segment in a DSO.443// Returns true if a given shared symbol is in a read-only segment in a DSO.
432template <class ELFT> static bool isReadOnly(SharedSymbol *SS) {444template <class ELFT> static bool isReadOnly(SharedSymbol *SS) {
433 typedef typename ELFT::Phdr Elf_Phdr;445 typedef typename ELFT::Phdr Elf_Phdr;
434 uint64_t Value = SS->getValue<ELFT>();
435446
436 // Determine if the symbol is read-only by scanning the DSO's program headers.447 // Determine if the symbol is read-only by scanning the DSO's program headers.
437 auto *File = cast<SharedFile<ELFT>>(SS->File);448 const SharedFile<ELFT> &File = SS->getFile<ELFT>();
438 for (const Elf_Phdr &Phdr : check(File->getObj().program_headers()))449 for (const Elf_Phdr &Phdr : check(File.getObj().program_headers()))
439 if ((Phdr.p_type == ELF::PT_LOAD || Phdr.p_type == ELF::PT_GNU_RELRO) &&450 if ((Phdr.p_type == ELF::PT_LOAD || Phdr.p_type == ELF::PT_GNU_RELRO) &&
440 !(Phdr.p_flags & ELF::PF_W) && Value >= Phdr.p_vaddr &&451 !(Phdr.p_flags & ELF::PF_W) && SS->Value >= Phdr.p_vaddr &&
441 Value < Phdr.p_vaddr + Phdr.p_memsz)452 SS->Value < Phdr.p_vaddr + Phdr.p_memsz)
442 return true;453 return true;
443 return false;454 return false;
444}455}
...@@ -452,16 +463,15 @@ template <class ELFT>...@@ -452,16 +463,15 @@ template <class ELFT>
452static std::vector<SharedSymbol *> getSymbolsAt(SharedSymbol *SS) {463static std::vector<SharedSymbol *> getSymbolsAt(SharedSymbol *SS) {
453 typedef typename ELFT::Sym Elf_Sym;464 typedef typename ELFT::Sym Elf_Sym;
454465
455 auto *File = cast<SharedFile<ELFT>>(SS->File);466 SharedFile<ELFT> &File = SS->getFile<ELFT>();
456 uint64_t Shndx = SS->getShndx<ELFT>();
457 uint64_t Value = SS->getValue<ELFT>();
458467
459 std::vector<SharedSymbol *> Ret;468 std::vector<SharedSymbol *> Ret;
460 for (const Elf_Sym &S : File->getGlobalSymbols()) {469 for (const Elf_Sym &S : File.getGlobalELFSyms()) {
461 if (S.st_shndx != Shndx || S.st_value != Value)470 if (S.st_shndx == SHN_UNDEF || S.st_shndx == SHN_ABS ||
471 S.st_value != SS->Value)
462 continue;472 continue;
463 StringRef Name = check(S.getName(File->getStringTable()));473 StringRef Name = check(S.getName(File.getStringTable()));
464 SymbolBody *Sym = Symtab<ELFT>::X->find(Name);474 Symbol *Sym = Symtab->find(Name);
465 if (auto *Alias = dyn_cast_or_null<SharedSymbol>(Sym))475 if (auto *Alias = dyn_cast_or_null<SharedSymbol>(Sym))
466 Ret.push_back(Alias);476 Ret.push_back(Alias);
467 }477 }
...@@ -512,132 +522,153 @@ static std::vector<SharedSymbol *> getSymbolsAt(SharedSymbol *SS) {...@@ -512,132 +522,153 @@ static std::vector<SharedSymbol *> getSymbolsAt(SharedSymbol *SS) {
512// define an accessor getV().522// define an accessor getV().
513template <class ELFT> static void addCopyRelSymbol(SharedSymbol *SS) {523template <class ELFT> static void addCopyRelSymbol(SharedSymbol *SS) {
514 // Copy relocation against zero-sized symbol doesn't make sense.524 // Copy relocation against zero-sized symbol doesn't make sense.
515 uint64_t SymSize = SS->template getSize<ELFT>();525 uint64_t SymSize = SS->getSize();
516 if (SymSize == 0)526 if (SymSize == 0)
517 fatal("cannot create a copy relocation for symbol " + toString(*SS));527 fatal("cannot create a copy relocation for symbol " + toString(*SS));
518528
519 // See if this symbol is in a read-only segment. If so, preserve the symbol's529 // See if this symbol is in a read-only segment. If so, preserve the symbol's
520 // memory protection by reserving space in the .bss.rel.ro section.530 // memory protection by reserving space in the .bss.rel.ro section.
521 bool IsReadOnly = isReadOnly<ELFT>(SS);531 bool IsReadOnly = isReadOnly<ELFT>(SS);
522 BssSection *Sec = IsReadOnly ? InX::BssRelRo : InX::Bss;532 BssSection *Sec = make<BssSection>(IsReadOnly ? ".bss.rel.ro" : ".bss",
523 uint64_t Off = Sec->reserveSpace(SymSize, SS->getAlignment<ELFT>());533 SymSize, SS->Alignment);
534 if (IsReadOnly)
535 InX::BssRelRo->getParent()->addSection(Sec);
536 else
537 InX::Bss->getParent()->addSection(Sec);
524538
525 // Look through the DSO's dynamic symbol table for aliases and create a539 // Look through the DSO's dynamic symbol table for aliases and create a
526 // dynamic symbol for each one. This causes the copy relocation to correctly540 // dynamic symbol for each one. This causes the copy relocation to correctly
527 // interpose any aliases.541 // interpose any aliases.
528 for (SharedSymbol *Sym : getSymbolsAt<ELFT>(SS)) {542 for (SharedSymbol *Sym : getSymbolsAt<ELFT>(SS)) {
529 Sym->NeedsCopy = true;
530 Sym->CopyRelSec = Sec;543 Sym->CopyRelSec = Sec;
531 Sym->CopyRelSecOff = Off;544 Sym->IsPreemptible = false;
532 Sym->symbol()->IsUsedInRegularObj = true;545 Sym->IsUsedInRegularObj = true;
546 Sym->Used = true;
533 }547 }
534548
535 In<ELFT>::RelaDyn->addReloc({Target->CopyRel, Sec, Off, false, SS, 0});549 InX::RelaDyn->addReloc({Target->CopyRel, Sec, 0, false, SS, 0});
550}
551
552static void errorOrWarn(const Twine &Msg) {
553 if (!Config->NoinhibitExec)
554 error(Msg);
555 else
556 warn(Msg);
557}
558
559// Returns PLT relocation expression.
560//
561// This handles a non PIC program call to function in a shared library. In
562// an ideal world, we could just report an error saying the relocation can
563// overflow at runtime. In the real world with glibc, crt1.o has a
564// R_X86_64_PC32 pointing to libc.so.
565//
566// The general idea on how to handle such cases is to create a PLT entry and
567// use that as the function value.
568//
569// For the static linking part, we just return a plt expr and everything
570// else will use the the PLT entry as the address.
571//
572// The remaining problem is making sure pointer equality still works. We
573// need the help of the dynamic linker for that. We let it know that we have
574// a direct reference to a so symbol by creating an undefined symbol with a
575// non zero st_value. Seeing that, the dynamic linker resolves the symbol to
576// the value of the symbol we created. This is true even for got entries, so
577// pointer equality is maintained. To avoid an infinite loop, the only entry
578// that points to the real function is a dedicated got entry used by the
579// plt. That is identified by special relocation types (R_X86_64_JUMP_SLOT,
580// R_386_JMP_SLOT, etc).
581static RelExpr getPltExpr(Symbol &Sym, RelExpr Expr, bool &IsConstant) {
582 Sym.NeedsPltAddr = true;
583 Sym.IsPreemptible = false;
584 IsConstant = true;
585 return toPlt(Expr);
536}586}
537587
588// This modifies the expression if we can use a copy relocation or point the
589// symbol to the PLT.
538template <class ELFT>590template <class ELFT>
539static RelExpr adjustExpr(SymbolBody &Body, RelExpr Expr, uint32_t Type,591static RelExpr adjustExpr(Symbol &Sym, RelExpr Expr, RelType Type,
540 const uint8_t *Data, InputSectionBase &S,592 InputSectionBase &S, uint64_t RelOff,
541 typename ELFT::uint RelOff) {593 bool &IsConstant) {
542 if (Body.isGnuIFunc()) {594 // If a relocation can be applied at link-time, we don't need to
543 Expr = toPlt(Expr);595 // create a dynamic relocation in the first place.
544 } else if (!isPreemptible(Body, Type)) {596 if (IsConstant)
545 if (needsPlt(Expr))597 return Expr;
546 Expr = fromPlt(Expr);
547 if (Expr == R_GOT_PC && !isAbsoluteValue(Body))
548 Expr = Target->adjustRelaxExpr(Type, Data, Expr);
549 }
550598
551 bool IsWrite = !Config->ZText || (S.Flags & SHF_WRITE);599 // We can create any dynamic relocation supported by the dynamic linker if a
552 if (IsWrite || isStaticLinkTimeConstant<ELFT>(Expr, Type, Body, S, RelOff))600 // section is writable or we are passed -z notext.
601 bool CanWrite = (S.Flags & SHF_WRITE) || !Config->ZText;
602 if (CanWrite && Target->isPicRel(Type))
553 return Expr;603 return Expr;
554604
555 // This relocation would require the dynamic linker to write a value to read605 // If the relocation is to a weak undef, and we are producing
556 // only memory. We can hack around it if we are producing an executable and606 // executable, give up on it and produce a non preemptible 0.
607 if (!Config->Shared && Sym.isUndefWeak()) {
608 Sym.IsPreemptible = false;
609 IsConstant = true;
610 return Expr;
611 }
612
613 // If we got here we know that this relocation would require the dynamic
614 // linker to write a value to read only memory or use an unsupported
615 // relocation.
616
617 // We can hack around it if we are producing an executable and
557 // the refered symbol can be preemepted to refer to the executable.618 // the refered symbol can be preemepted to refer to the executable.
558 if (Config->Shared || (Config->Pic && !isRelExpr(Expr))) {619 if (!CanWrite && (Config->Shared || (Config->Pic && !isRelExpr(Expr)))) {
559 error("can't create dynamic relocation " + toString(Type) + " against " +620 error(
560 (Body.getName().empty() ? "local symbol"621 "can't create dynamic relocation " + toString(Type) + " against " +
561 : "symbol: " + toString(Body)) +622 (Sym.getName().empty() ? "local symbol" : "symbol: " + toString(Sym)) +
562 " in readonly segment" + getLocation<ELFT>(S, Body, RelOff));623 " in readonly segment; recompile object files with -fPIC" +
624 getLocation(S, Sym, RelOff));
563 return Expr;625 return Expr;
564 }626 }
565627
566 if (Body.getVisibility() != STV_DEFAULT) {628 // Copy relocations are only possible if we are creating an executable and the
567 error("cannot preempt symbol: " + toString(Body) +629 // symbol is shared.
568 getLocation<ELFT>(S, Body, RelOff));630 if (!Sym.isShared() || Config->Shared)
631 return Expr;
632
633 if (Sym.getVisibility() != STV_DEFAULT) {
634 error("cannot preempt symbol: " + toString(Sym) +
635 getLocation(S, Sym, RelOff));
569 return Expr;636 return Expr;
570 }637 }
571638
572 if (Body.isObject()) {639 if (Sym.isObject()) {
573 // Produce a copy relocation.640 // Produce a copy relocation.
574 auto *B = cast<SharedSymbol>(&Body);641 auto *B = dyn_cast<SharedSymbol>(&Sym);
575 if (!B->NeedsCopy) {642 if (B && !B->CopyRelSec) {
576 if (Config->ZNocopyreloc)643 if (Config->ZNocopyreloc)
577 error("unresolvable relocation " + toString(Type) +644 error("unresolvable relocation " + toString(Type) +
578 " against symbol '" + toString(*B) +645 " against symbol '" + toString(*B) +
579 "'; recompile with -fPIC or remove '-z nocopyreloc'" +646 "'; recompile with -fPIC or remove '-z nocopyreloc'" +
580 getLocation<ELFT>(S, Body, RelOff));647 getLocation(S, Sym, RelOff));
581648
582 addCopyRelSymbol<ELFT>(B);649 addCopyRelSymbol<ELFT>(B);
583 }650 }
651 IsConstant = true;
584 return Expr;652 return Expr;
585 }653 }
586654
587 if (Body.isFunc()) {655 if (Sym.isFunc())
588 // This handles a non PIC program call to function in a shared library. In656 return getPltExpr(Sym, Expr, IsConstant);
589 // an ideal world, we could just report an error saying the relocation can
590 // overflow at runtime. In the real world with glibc, crt1.o has a
591 // R_X86_64_PC32 pointing to libc.so.
592 //
593 // The general idea on how to handle such cases is to create a PLT entry and
594 // use that as the function value.
595 //
596 // For the static linking part, we just return a plt expr and everything
597 // else will use the the PLT entry as the address.
598 //
599 // The remaining problem is making sure pointer equality still works. We
600 // need the help of the dynamic linker for that. We let it know that we have
601 // a direct reference to a so symbol by creating an undefined symbol with a
602 // non zero st_value. Seeing that, the dynamic linker resolves the symbol to
603 // the value of the symbol we created. This is true even for got entries, so
604 // pointer equality is maintained. To avoid an infinite loop, the only entry
605 // that points to the real function is a dedicated got entry used by the
606 // plt. That is identified by special relocation types (R_X86_64_JUMP_SLOT,
607 // R_386_JMP_SLOT, etc).
608 Body.NeedsPltAddr = true;
609 return toPlt(Expr);
610 }
611657
612 error("symbol '" + toString(Body) + "' defined in " + toString(Body.File) +658 errorOrWarn("symbol '" + toString(Sym) + "' defined in " +
613 " has no type");659 toString(Sym.File) + " has no type");
614 return Expr;660 return Expr;
615}661}
616662
617// Returns an addend of a given relocation. If it is RELA, an addend
618// is in a relocation itself. If it is REL, we need to read it from an
619// input section.
620template <class ELFT, class RelTy>
621static int64_t computeAddend(const RelTy &Rel, const uint8_t *Buf) {
622 uint32_t Type = Rel.getType(Config->IsMips64EL);
623 int64_t A = RelTy::IsRela
624 ? getAddend<ELFT>(Rel)
625 : Target->getImplicitAddend(Buf + Rel.r_offset, Type);
626
627 if (Config->EMachine == EM_PPC64 && Config->Pic && Type == R_PPC64_TOC)
628 A += getPPC64TocBase();
629 return A;
630}
631
632// MIPS has an odd notion of "paired" relocations to calculate addends.663// MIPS has an odd notion of "paired" relocations to calculate addends.
633// For example, if a relocation is of R_MIPS_HI16, there must be a664// For example, if a relocation is of R_MIPS_HI16, there must be a
634// R_MIPS_LO16 relocation after that, and an addend is calculated using665// R_MIPS_LO16 relocation after that, and an addend is calculated using
635// the two relocations.666// the two relocations.
636template <class ELFT, class RelTy>667template <class ELFT, class RelTy>
637static int64_t computeMipsAddend(const RelTy &Rel, InputSectionBase &Sec,668static int64_t computeMipsAddend(const RelTy &Rel, const RelTy *End,
638 RelExpr Expr, SymbolBody &Body,669 InputSectionBase &Sec, RelExpr Expr,
639 const RelTy *End) {670 bool IsLocal) {
640 if (Expr == R_MIPS_GOTREL && Body.isLocal())671 if (Expr == R_MIPS_GOTREL && IsLocal)
641 return Sec.getFile<ELFT>()->MipsGp0;672 return Sec.getFile<ELFT>()->MipsGp0;
642673
643 // The ABI says that the paired relocation is used only for REL.674 // The ABI says that the paired relocation is used only for REL.
...@@ -645,8 +676,8 @@ static int64_t computeMipsAddend(const RelTy &Rel, InputSectionBase &Sec,...@@ -645,8 +676,8 @@ static int64_t computeMipsAddend(const RelTy &Rel, InputSectionBase &Sec,
645 if (RelTy::IsRela)676 if (RelTy::IsRela)
646 return 0;677 return 0;
647678
648 uint32_t Type = Rel.getType(Config->IsMips64EL);679 RelType Type = Rel.getType(Config->IsMips64EL);
649 uint32_t PairTy = getMipsPairType(Type, Body);680 uint32_t PairTy = getMipsPairType(Type, IsLocal);
650 if (PairTy == R_MIPS_NONE)681 if (PairTy == R_MIPS_NONE)
651 return 0;682 return 0;
652683
...@@ -655,64 +686,87 @@ static int64_t computeMipsAddend(const RelTy &Rel, InputSectionBase &Sec,...@@ -655,64 +686,87 @@ static int64_t computeMipsAddend(const RelTy &Rel, InputSectionBase &Sec,
655686
656 // To make things worse, paired relocations might not be contiguous in687 // To make things worse, paired relocations might not be contiguous in
657 // the relocation table, so we need to do linear search. *sigh*688 // the relocation table, so we need to do linear search. *sigh*
658 for (const RelTy *RI = &Rel; RI != End; ++RI) {689 for (const RelTy *RI = &Rel; RI != End; ++RI)
659 if (RI->getType(Config->IsMips64EL) != PairTy)690 if (RI->getType(Config->IsMips64EL) == PairTy &&
660 continue;691 RI->getSymbol(Config->IsMips64EL) == SymIndex)
661 if (RI->getSymbol(Config->IsMips64EL) != SymIndex)692 return Target->getImplicitAddend(Buf + RI->r_offset, PairTy);
662 continue;
663
664 endianness E = Config->Endianness;
665 int32_t Hi = (read32(Buf + Rel.r_offset, E) & 0xffff) << 16;
666 int32_t Lo = SignExtend32<16>(read32(Buf + RI->r_offset, E));
667 return Hi + Lo;
668 }
669693
670 warn("can't find matching " + toString(PairTy) + " relocation for " +694 warn("can't find matching " + toString(PairTy) + " relocation for " +
671 toString(Type));695 toString(Type));
672 return 0;696 return 0;
673}697}
674698
675template <class ELFT>699// Returns an addend of a given relocation. If it is RELA, an addend
676static void reportUndefined(SymbolBody &Sym, InputSectionBase &S,700// is in a relocation itself. If it is REL, we need to read it from an
677 uint64_t Offset) {701// input section.
702template <class ELFT, class RelTy>
703static int64_t computeAddend(const RelTy &Rel, const RelTy *End,
704 InputSectionBase &Sec, RelExpr Expr,
705 bool IsLocal) {
706 int64_t Addend;
707 RelType Type = Rel.getType(Config->IsMips64EL);
708
709 if (RelTy::IsRela) {
710 Addend = getAddend<ELFT>(Rel);
711 } else {
712 const uint8_t *Buf = Sec.Data.data();
713 Addend = Target->getImplicitAddend(Buf + Rel.r_offset, Type);
714 }
715
716 if (Config->EMachine == EM_PPC64 && Config->Pic && Type == R_PPC64_TOC)
717 Addend += getPPC64TocBase();
718 if (Config->EMachine == EM_MIPS)
719 Addend += computeMipsAddend<ELFT>(Rel, End, Sec, Expr, IsLocal);
720
721 return Addend;
722}
723
724// Report an undefined symbol if necessary.
725// Returns true if this function printed out an error message.
726static bool maybeReportUndefined(Symbol &Sym, InputSectionBase &Sec,
727 uint64_t Offset) {
678 if (Config->UnresolvedSymbols == UnresolvedPolicy::IgnoreAll)728 if (Config->UnresolvedSymbols == UnresolvedPolicy::IgnoreAll)
679 return;729 return false;
680730
681 bool CanBeExternal = Sym.symbol()->computeBinding() != STB_LOCAL &&731 if (Sym.isLocal() || !Sym.isUndefined() || Sym.isWeak())
682 Sym.getVisibility() == STV_DEFAULT;732 return false;
733
734 bool CanBeExternal =
735 Sym.computeBinding() != STB_LOCAL && Sym.getVisibility() == STV_DEFAULT;
683 if (Config->UnresolvedSymbols == UnresolvedPolicy::Ignore && CanBeExternal)736 if (Config->UnresolvedSymbols == UnresolvedPolicy::Ignore && CanBeExternal)
684 return;737 return false;
685738
686 std::string Msg =739 std::string Msg =
687 "undefined symbol: " + toString(Sym) + "\n>>> referenced by ";740 "undefined symbol: " + toString(Sym) + "\n>>> referenced by ";
688741
689 std::string Src = S.getSrcMsg<ELFT>(Offset);742 std::string Src = Sec.getSrcMsg(Sym, Offset);
690 if (!Src.empty())743 if (!Src.empty())
691 Msg += Src + "\n>>> ";744 Msg += Src + "\n>>> ";
692 Msg += S.getObjMsg<ELFT>(Offset);745 Msg += Sec.getObjMsg(Offset);
693746
694 if (Config->UnresolvedSymbols == UnresolvedPolicy::WarnAll ||747 if ((Config->UnresolvedSymbols == UnresolvedPolicy::Warn && CanBeExternal) ||
695 (Config->UnresolvedSymbols == UnresolvedPolicy::Warn && CanBeExternal)) {748 Config->NoinhibitExec) {
696 warn(Msg);749 warn(Msg);
697 } else {750 return false;
698 error(Msg);
699 }751 }
752
753 error(Msg);
754 return true;
700}755}
701756
702template <class RelTy>757// MIPS N32 ABI treats series of successive relocations with the same offset
703static std::pair<uint32_t, uint32_t>758// as a single relocation. The similar approach used by N64 ABI, but this ABI
704mergeMipsN32RelTypes(uint32_t Type, uint32_t Offset, RelTy *I, RelTy *E) {759// packs all relocations into the single relocation record. Here we emulate
705 // MIPS N32 ABI treats series of successive relocations with the same offset760// this for the N32 ABI. Iterate over relocation with the same offset and put
706 // as a single relocation. The similar approach used by N64 ABI, but this ABI761// theirs types into the single bit-set.
707 // packs all relocations into the single relocation record. Here we emulate762template <class RelTy> static RelType getMipsN32RelType(RelTy *&Rel, RelTy *End) {
708 // this for the N32 ABI. Iterate over relocation with the same offset and put763 RelType Type = Rel->getType(Config->IsMips64EL);
709 // theirs types into the single bit-set.764 uint64_t Offset = Rel->r_offset;
710 uint32_t Processed = 0;765
711 for (; I != E && Offset == I->r_offset; ++I) {766 int N = 0;
712 ++Processed;767 while (Rel + 1 != End && (Rel + 1)->r_offset == Offset)
713 Type |= I->getType(Config->IsMips64EL) << (8 * Processed);768 Type |= (++Rel)->getType(Config->IsMips64EL) << (8 * ++N);
714 }769 return Type;
715 return std::make_pair(Type, Processed);
716}770}
717771
718// .eh_frame sections are mergeable input sections, so their input772// .eh_frame sections are mergeable input sections, so their input
...@@ -730,73 +784,84 @@ namespace {...@@ -730,73 +784,84 @@ namespace {
730class OffsetGetter {784class OffsetGetter {
731public:785public:
732 explicit OffsetGetter(InputSectionBase &Sec) {786 explicit OffsetGetter(InputSectionBase &Sec) {
733 if (auto *Eh = dyn_cast<EhInputSection>(&Sec)) {787 if (auto *Eh = dyn_cast<EhInputSection>(&Sec))
734 P = Eh->Pieces;788 Pieces = Eh->Pieces;
735 Size = Eh->Pieces.size();
736 }
737 }789 }
738790
739 // Translates offsets in input sections to offsets in output sections.791 // Translates offsets in input sections to offsets in output sections.
740 // Given offset must increase monotonically. We assume that P is792 // Given offset must increase monotonically. We assume that Piece is
741 // sorted by InputOff.793 // sorted by InputOff.
742 uint64_t get(uint64_t Off) {794 uint64_t get(uint64_t Off) {
743 if (P.empty())795 if (Pieces.empty())
744 return Off;796 return Off;
745797
746 while (I != Size && P[I].InputOff + P[I].size() <= Off)798 while (I != Pieces.size() && Pieces[I].InputOff + Pieces[I].Size <= Off)
747 ++I;799 ++I;
748 if (I == Size)800 if (I == Pieces.size())
749 return Off;801 return Off;
750802
751 // P must be contiguous, so there must be no holes in between.803 // Pieces must be contiguous, so there must be no holes in between.
752 assert(P[I].InputOff <= Off && "Relocation not in any piece");804 assert(Pieces[I].InputOff <= Off && "Relocation not in any piece");
753805
754 // Offset -1 means that the piece is dead (i.e. garbage collected).806 // Offset -1 means that the piece is dead (i.e. garbage collected).
755 if (P[I].OutputOff == -1)807 if (Pieces[I].OutputOff == -1)
756 return -1;808 return -1;
757 return P[I].OutputOff + Off - P[I].InputOff;809 return Pieces[I].OutputOff + Off - Pieces[I].InputOff;
758 }810 }
759811
760private:812private:
761 ArrayRef<EhSectionPiece> P;813 ArrayRef<EhSectionPiece> Pieces;
762 size_t I = 0;814 size_t I = 0;
763 size_t Size;
764};815};
765} // namespace816} // namespace
766817
767template <class ELFT, class GotPltSection>818template <class ELFT, class GotPltSection>
768static void addPltEntry(PltSection *Plt, GotPltSection *GotPlt,819static void addPltEntry(PltSection *Plt, GotPltSection *GotPlt,
769 RelocationSection<ELFT> *Rel, uint32_t Type,820 RelocationBaseSection *Rel, RelType Type, Symbol &Sym,
770 SymbolBody &Sym, bool UseSymVA) {821 bool UseSymVA) {
771 Plt->addEntry<ELFT>(Sym);822 Plt->addEntry<ELFT>(Sym);
772 GotPlt->addEntry(Sym);823 GotPlt->addEntry(Sym);
773 Rel->addReloc({Type, GotPlt, Sym.getGotPltOffset(), UseSymVA, &Sym, 0});824 Rel->addReloc({Type, GotPlt, Sym.getGotPltOffset(), UseSymVA, &Sym, 0});
774}825}
775826
776template <class ELFT>827template <class ELFT> static void addGotEntry(Symbol &Sym, bool Preemptible) {
777static void addGotEntry(SymbolBody &Sym, bool Preemptible) {
778 InX::Got->addEntry(Sym);828 InX::Got->addEntry(Sym);
779829
830 RelExpr Expr = Sym.isTls() ? R_TLS : R_ABS;
780 uint64_t Off = Sym.getGotOffset();831 uint64_t Off = Sym.getGotOffset();
781 uint32_t DynType;
782 RelExpr Expr = R_ABS;
783
784 if (Sym.isTls()) {
785 DynType = Target->TlsGotRel;
786 Expr = R_TLS;
787 } else if (!Preemptible && Config->Pic && !isAbsolute(Sym)) {
788 DynType = Target->RelativeRel;
789 } else {
790 DynType = Target->GotRel;
791 }
792832
793 bool Constant = !Preemptible && !(Config->Pic && !isAbsolute(Sym));833 // If a GOT slot value can be calculated at link-time, which is now,
794 if (!Constant)834 // we can just fill that out.
795 In<ELFT>::RelaDyn->addReloc(835 //
796 {DynType, InX::Got, Off, !Preemptible, &Sym, 0});836 // (We don't actually write a value to a GOT slot right now, but we
837 // add a static relocation to a Relocations vector so that
838 // InputSection::relocate will do the work for us. We may be able
839 // to just write a value now, but it is a TODO.)
840 bool IsLinkTimeConstant = !Preemptible && (!Config->Pic || isAbsolute(Sym));
841 if (IsLinkTimeConstant) {
842 InX::Got->Relocations.push_back({Expr, Target->GotRel, Off, 0, &Sym});
843 return;
844 }
797845
798 if (Constant || (!Config->IsRela && !Preemptible))846 // Otherwise, we emit a dynamic relocation to .rel[a].dyn so that
799 InX::Got->Relocations.push_back({Expr, DynType, Off, 0, &Sym});847 // the GOT slot will be fixed at load-time.
848 RelType Type;
849 if (Sym.isTls())
850 Type = Target->TlsGotRel;
851 else if (!Preemptible && Config->Pic && !isAbsolute(Sym))
852 Type = Target->RelativeRel;
853 else
854 Type = Target->GotRel;
855 InX::RelaDyn->addReloc({Type, InX::Got, Off, !Preemptible, &Sym, 0});
856
857 // REL type relocations don't have addend fields unlike RELAs, and
858 // their addends are stored to the section to which they are applied.
859 // So, store addends if we need to.
860 //
861 // This is ugly -- the difference between REL and RELA should be
862 // handled in a better way. It's a TODO.
863 if (!Config->IsRela && !Preemptible)
864 InX::Got->Relocations.push_back({R_ABS, Target->GotRel, Off, 0, &Sym});
800}865}
801866
802// The reason we have to do this early scan is as follows867// The reason we have to do this early scan is as follows
...@@ -816,41 +881,67 @@ template <class ELFT, class RelTy>...@@ -816,41 +881,67 @@ template <class ELFT, class RelTy>
816static void scanRelocs(InputSectionBase &Sec, ArrayRef<RelTy> Rels) {881static void scanRelocs(InputSectionBase &Sec, ArrayRef<RelTy> Rels) {
817 OffsetGetter GetOffset(Sec);882 OffsetGetter GetOffset(Sec);
818883
884 // Not all relocations end up in Sec.Relocations, but a lot do.
885 Sec.Relocations.reserve(Rels.size());
886
819 for (auto I = Rels.begin(), End = Rels.end(); I != End; ++I) {887 for (auto I = Rels.begin(), End = Rels.end(); I != End; ++I) {
820 const RelTy &Rel = *I;888 const RelTy &Rel = *I;
821 SymbolBody &Body = Sec.getFile<ELFT>()->getRelocTargetSym(Rel);889 Symbol &Sym = Sec.getFile<ELFT>()->getRelocTargetSym(Rel);
822 uint32_t Type = Rel.getType(Config->IsMips64EL);890 RelType Type = Rel.getType(Config->IsMips64EL);
823
824 if (Config->MipsN32Abi) {
825 uint32_t Processed;
826 std::tie(Type, Processed) =
827 mergeMipsN32RelTypes(Type, Rel.r_offset, I + 1, End);
828 I += Processed;
829 }
830891
831 // Compute the offset of this section in the output section.892 // Deal with MIPS oddity.
893 if (Config->MipsN32Abi)
894 Type = getMipsN32RelType(I, End);
895
896 // Get an offset in an output section this relocation is applied to.
832 uint64_t Offset = GetOffset.get(Rel.r_offset);897 uint64_t Offset = GetOffset.get(Rel.r_offset);
833 if (Offset == uint64_t(-1))898 if (Offset == uint64_t(-1))
834 continue;899 continue;
835900
836 // Report undefined symbols. The fact that we report undefined901 // Skip if the target symbol is an erroneous undefined symbol.
837 // symbols here means that we report undefined symbols only when902 if (maybeReportUndefined(Sym, Sec, Rel.r_offset))
838 // they have relocations pointing to them. We don't care about903 continue;
839 // undefined symbols that are in dead-stripped sections.
840 if (!Body.isLocal() && Body.isUndefined() && !Body.symbol()->isWeak())
841 reportUndefined<ELFT>(Body, Sec, Rel.r_offset);
842904
843 RelExpr Expr =905 RelExpr Expr =
844 Target->getRelExpr(Type, Body, Sec.Data.begin() + Rel.r_offset);906 Target->getRelExpr(Type, Sym, Sec.Data.begin() + Rel.r_offset);
845907
846 // Ignore "hint" relocations because they are only markers for relaxation.908 // Ignore "hint" relocations because they are only markers for relaxation.
847 if (isRelExprOneOf<R_HINT, R_NONE>(Expr))909 if (isRelExprOneOf<R_HINT, R_NONE>(Expr))
848 continue;910 continue;
849911
850 bool Preemptible = isPreemptible(Body, Type);912 // Handle yet another MIPS-ness.
851 Expr = adjustExpr<ELFT>(Body, Expr, Type, Sec.Data.data() + Rel.r_offset,913 if (isMipsGprel(Type)) {
852 Sec, Rel.r_offset);914 int64_t Addend = computeAddend<ELFT>(Rel, End, Sec, Expr, Sym.isLocal());
853 if (ErrorCount)915 Sec.Relocations.push_back({R_MIPS_GOTREL, Type, Offset, Addend, &Sym});
916 continue;
917 }
918
919 bool Preemptible = Sym.IsPreemptible;
920
921 // Strenghten or relax a PLT access.
922 //
923 // GNU ifunc symbols must be accessed via PLT because their addresses
924 // are determined by runtime.
925 //
926 // On the other hand, if we know that a PLT entry will be resolved within
927 // the same ELF module, we can skip PLT access and directly jump to the
928 // destination function. For example, if we are linking a main exectuable,
929 // all dynamic symbols that can be resolved within the executable will
930 // actually be resolved that way at runtime, because the main exectuable
931 // is always at the beginning of a search list. We can leverage that fact.
932 if (Sym.isGnuIFunc())
933 Expr = toPlt(Expr);
934 else if (!Preemptible && Expr == R_GOT_PC && !isAbsoluteValue(Sym))
935 Expr =
936 Target->adjustRelaxExpr(Type, Sec.Data.data() + Rel.r_offset, Expr);
937 else if (!Preemptible)
938 Expr = fromPlt(Expr);
939
940 bool IsConstant =
941 isStaticLinkTimeConstant(Expr, Type, Sym, Sec, Rel.r_offset);
942
943 Expr = adjustExpr<ELFT>(Sym, Expr, Type, Sec, Rel.r_offset, IsConstant);
944 if (errorCount())
854 continue;945 continue;
855946
856 // This relocation does not require got entry, but it is relative to got and947 // This relocation does not require got entry, but it is relative to got and
...@@ -860,26 +951,24 @@ static void scanRelocs(InputSectionBase &Sec, ArrayRef<RelTy> Rels) {...@@ -860,26 +951,24 @@ static void scanRelocs(InputSectionBase &Sec, ArrayRef<RelTy> Rels) {
860 InX::Got->HasGotOffRel = true;951 InX::Got->HasGotOffRel = true;
861952
862 // Read an addend.953 // Read an addend.
863 int64_t Addend = computeAddend<ELFT>(Rel, Sec.Data.data());954 int64_t Addend = computeAddend<ELFT>(Rel, End, Sec, Expr, Sym.isLocal());
864 if (Config->EMachine == EM_MIPS)
865 Addend += computeMipsAddend<ELFT>(Rel, Sec, Expr, Body, End);
866955
867 // Process some TLS relocations, including relaxing TLS relocations.956 // Process some TLS relocations, including relaxing TLS relocations.
868 // Note that this function does not handle all TLS relocations.957 // Note that this function does not handle all TLS relocations.
869 if (unsigned Processed =958 if (unsigned Processed =
870 handleTlsRelocation<ELFT>(Type, Body, Sec, Offset, Addend, Expr)) {959 handleTlsRelocation<ELFT>(Type, Sym, Sec, Offset, Addend, Expr)) {
871 I += (Processed - 1);960 I += (Processed - 1);
872 continue;961 continue;
873 }962 }
874963
875 // If a relocation needs PLT, we create PLT and GOTPLT slots for the symbol.964 // If a relocation needs PLT, we create PLT and GOTPLT slots for the symbol.
876 if (needsPlt(Expr) && !Body.isInPlt()) {965 if (needsPlt(Expr) && !Sym.isInPlt()) {
877 if (Body.isGnuIFunc() && !Preemptible)966 if (Sym.isGnuIFunc() && !Preemptible)
878 addPltEntry(InX::Iplt, InX::IgotPlt, In<ELFT>::RelaIplt,967 addPltEntry<ELFT>(InX::Iplt, InX::IgotPlt, InX::RelaIplt,
879 Target->IRelativeRel, Body, true);968 Target->IRelativeRel, Sym, true);
880 else969 else
881 addPltEntry(InX::Plt, InX::GotPlt, In<ELFT>::RelaPlt, Target->PltRel,970 addPltEntry<ELFT>(InX::Plt, InX::GotPlt, InX::RelaPlt, Target->PltRel,
882 Body, !Preemptible);971 Sym, !Preemptible);
883 }972 }
884973
885 // Create a GOT slot if a relocation needs GOT.974 // Create a GOT slot if a relocation needs GOT.
...@@ -892,25 +981,26 @@ static void scanRelocs(InputSectionBase &Sec, ArrayRef<RelTy> Rels) {...@@ -892,25 +981,26 @@ static void scanRelocs(InputSectionBase &Sec, ArrayRef<RelTy> Rels) {
892 // See "Global Offset Table" in Chapter 5 in the following document981 // See "Global Offset Table" in Chapter 5 in the following document
893 // for detailed description:982 // for detailed description:
894 // ftp://www.linux-mips.org/pub/linux/mips/doc/ABI/mipsabi.pdf983 // ftp://www.linux-mips.org/pub/linux/mips/doc/ABI/mipsabi.pdf
895 InX::MipsGot->addEntry(Body, Addend, Expr);984 InX::MipsGot->addEntry(Sym, Addend, Expr);
896 if (Body.isTls() && Body.isPreemptible())985 if (Sym.isTls() && Sym.IsPreemptible)
897 In<ELFT>::RelaDyn->addReloc({Target->TlsGotRel, InX::MipsGot,986 InX::RelaDyn->addReloc({Target->TlsGotRel, InX::MipsGot,
898 Body.getGotOffset(), false, &Body, 0});987 Sym.getGotOffset(), false, &Sym, 0});
899 } else if (!Body.isInGot()) {988 } else if (!Sym.isInGot()) {
900 addGotEntry<ELFT>(Body, Preemptible);989 addGotEntry<ELFT>(Sym, Preemptible);
901 }990 }
902 }991 }
903992
904 if (!needsPlt(Expr) && !needsGot(Expr) && isPreemptible(Body, Type)) {993 if (!needsPlt(Expr) && !needsGot(Expr) && Sym.IsPreemptible) {
905 // We don't know anything about the finaly symbol. Just ask the dynamic994 // We don't know anything about the finaly symbol. Just ask the dynamic
906 // linker to handle the relocation for us.995 // linker to handle the relocation for us.
907 if (!Target->isPicRel(Type))996 if (!Target->isPicRel(Type))
908 error("relocation " + toString(Type) +997 errorOrWarn(
909 " cannot be used against shared object; recompile with -fPIC" +998 "relocation " + toString(Type) +
910 getLocation<ELFT>(Sec, Body, Offset));999 " cannot be used against shared object; recompile with -fPIC" +
1000 getLocation(Sec, Sym, Offset));
9111001
912 In<ELFT>::RelaDyn->addReloc(1002 InX::RelaDyn->addReloc(
913 {Target->getDynRel(Type), &Sec, Offset, false, &Body, Addend});1003 {Target->getDynRel(Type), &Sec, Offset, false, &Sym, Addend});
9141004
915 // MIPS ABI turns using of GOT and dynamic relocations inside out.1005 // MIPS ABI turns using of GOT and dynamic relocations inside out.
916 // While regular ABI uses dynamic relocations to fill up GOT entries1006 // While regular ABI uses dynamic relocations to fill up GOT entries
...@@ -928,32 +1018,36 @@ static void scanRelocs(InputSectionBase &Sec, ArrayRef<RelTy> Rels) {...@@ -928,32 +1018,36 @@ static void scanRelocs(InputSectionBase &Sec, ArrayRef<RelTy> Rels) {
928 // a dynamic relocation.1018 // a dynamic relocation.
929 // ftp://www.linux-mips.org/pub/linux/mips/doc/ABI/mipsabi.pdf p.4-191019 // ftp://www.linux-mips.org/pub/linux/mips/doc/ABI/mipsabi.pdf p.4-19
930 if (Config->EMachine == EM_MIPS)1020 if (Config->EMachine == EM_MIPS)
931 InX::MipsGot->addEntry(Body, Addend, Expr);1021 InX::MipsGot->addEntry(Sym, Addend, Expr);
932 continue;1022 continue;
933 }1023 }
9341024
935 // If the relocation points to something in the file, we can process it.
936 bool IsConstant =
937 isStaticLinkTimeConstant<ELFT>(Expr, Type, Body, Sec, Rel.r_offset);
938
939 // The size is not going to change, so we fold it in here.1025 // The size is not going to change, so we fold it in here.
940 if (Expr == R_SIZE)1026 if (Expr == R_SIZE)
941 Addend += Body.getSize<ELFT>();1027 Addend += Sym.getSize();
1028
1029 // If the produced value is a constant, we just remember to write it
1030 // when outputting this section. We also have to do it if the format
1031 // uses Elf_Rel, since in that case the written value is the addend.
1032 if (IsConstant) {
1033 Sec.Relocations.push_back({Expr, Type, Offset, Addend, &Sym});
1034 continue;
1035 }
9421036
943 // If the output being produced is position independent, the final value1037 // If the output being produced is position independent, the final value
944 // is still not known. In that case we still need some help from the1038 // is still not known. In that case we still need some help from the
945 // dynamic linker. We can however do better than just copying the incoming1039 // dynamic linker. We can however do better than just copying the incoming
946 // relocation. We can process some of it and and just ask the dynamic1040 // relocation. We can process some of it and and just ask the dynamic
947 // linker to add the load address.1041 // linker to add the load address.
948 if (!IsConstant)1042 if (Config->IsRela) {
949 In<ELFT>::RelaDyn->addReloc(1043 InX::RelaDyn->addReloc(
950 {Target->RelativeRel, &Sec, Offset, true, &Body, Addend});1044 {Target->RelativeRel, &Sec, Offset, true, &Sym, Addend});
9511045 } else {
952 // If the produced value is a constant, we just remember to write it1046 // In REL, addends are stored to the target section.
953 // when outputting this section. We also have to do it if the format1047 InX::RelaDyn->addReloc(
954 // uses Elf_Rel, since in that case the written value is the addend.1048 {Target->RelativeRel, &Sec, Offset, true, &Sym, 0});
955 if (IsConstant || !RelTy::IsRela)1049 Sec.Relocations.push_back({Expr, Type, Offset, Addend, &Sym});
956 Sec.Relocations.push_back({Expr, Type, Offset, Addend, &Body});1050 }
957 }1051 }
958}1052}
9591053
...@@ -964,178 +1058,365 @@ template <class ELFT> void elf::scanRelocations(InputSectionBase &S) {...@@ -964,178 +1058,365 @@ template <class ELFT> void elf::scanRelocations(InputSectionBase &S) {
964 scanRelocs<ELFT>(S, S.rels<ELFT>());1058 scanRelocs<ELFT>(S, S.rels<ELFT>());
965}1059}
9661060
1061// Thunk Implementation
1062//
1063// Thunks (sometimes called stubs, veneers or branch islands) are small pieces
1064// of code that the linker inserts inbetween a caller and a callee. The thunks
1065// are added at link time rather than compile time as the decision on whether
1066// a thunk is needed, such as the caller and callee being out of range, can only
1067// be made at link time.
1068//
1069// It is straightforward to tell given the current state of the program when a
1070// thunk is needed for a particular call. The more difficult part is that
1071// the thunk needs to be placed in the program such that the caller can reach
1072// the thunk and the thunk can reach the callee; furthermore, adding thunks to
1073// the program alters addresses, which can mean more thunks etc.
1074//
1075// In lld we have a synthetic ThunkSection that can hold many Thunks.
1076// The decision to have a ThunkSection act as a container means that we can
1077// more easily handle the most common case of a single block of contiguous
1078// Thunks by inserting just a single ThunkSection.
1079//
1080// The implementation of Thunks in lld is split across these areas
1081// Relocations.cpp : Framework for creating and placing thunks
1082// Thunks.cpp : The code generated for each supported thunk
1083// Target.cpp : Target specific hooks that the framework uses to decide when
1084// a thunk is used
1085// Synthetic.cpp : Implementation of ThunkSection
1086// Writer.cpp : Iteratively call framework until no more Thunks added
1087//
1088// Thunk placement requirements:
1089// Mips LA25 thunks. These must be placed immediately before the callee section
1090// We can assume that the caller is in range of the Thunk. These are modelled
1091// by Thunks that return the section they must precede with
1092// getTargetInputSection().
1093//
1094// ARM interworking and range extension thunks. These thunks must be placed
1095// within range of the caller. All implemented ARM thunks can always reach the
1096// callee as they use an indirect jump via a register that has no range
1097// restrictions.
1098//
1099// Thunk placement algorithm:
1100// For Mips LA25 ThunkSections; the placement is explicit, it has to be before
1101// getTargetInputSection().
1102//
1103// For thunks that must be placed within range of the caller there are many
1104// possible choices given that the maximum range from the caller is usually
1105// much larger than the average InputSection size. Desirable properties include:
1106// - Maximize reuse of thunks by multiple callers
1107// - Minimize number of ThunkSections to simplify insertion
1108// - Handle impact of already added Thunks on addresses
1109// - Simple to understand and implement
1110//
1111// In lld for the first pass, we pre-create one or more ThunkSections per
1112// InputSectionDescription at Target specific intervals. A ThunkSection is
1113// placed so that the estimated end of the ThunkSection is within range of the
1114// start of the InputSectionDescription or the previous ThunkSection. For
1115// example:
1116// InputSectionDescription
1117// Section 0
1118// ...
1119// Section N
1120// ThunkSection 0
1121// Section N + 1
1122// ...
1123// Section N + K
1124// Thunk Section 1
1125//
1126// The intention is that we can add a Thunk to a ThunkSection that is well
1127// spaced enough to service a number of callers without having to do a lot
1128// of work. An important principle is that it is not an error if a Thunk cannot
1129// be placed in a pre-created ThunkSection; when this happens we create a new
1130// ThunkSection placed next to the caller. This allows us to handle the vast
1131// majority of thunks simply, but also handle rare cases where the branch range
1132// is smaller than the target specific spacing.
1133//
1134// The algorithm is expected to create all the thunks that are needed in a
1135// single pass, with a small number of programs needing a second pass due to
1136// the insertion of thunks in the first pass increasing the offset between
1137// callers and callees that were only just in range.
1138//
1139// A consequence of allowing new ThunkSections to be created outside of the
1140// pre-created ThunkSections is that in rare cases calls to Thunks that were in
1141// range in pass K, are out of range in some pass > K due to the insertion of
1142// more Thunks in between the caller and callee. When this happens we retarget
1143// the relocation back to the original target and create another Thunk.
1144
1145// Remove ThunkSections that are empty, this should only be the initial set
1146// precreated on pass 0.
1147
967// Insert the Thunks for OutputSection OS into their designated place1148// Insert the Thunks for OutputSection OS into their designated place
968// in the Sections vector, and recalculate the InputSection output section1149// in the Sections vector, and recalculate the InputSection output section
969// offsets.1150// offsets.
970// This may invalidate any output section offsets stored outside of InputSection1151// This may invalidate any output section offsets stored outside of InputSection
971void ThunkCreator::mergeThunks() {1152void ThunkCreator::mergeThunks(ArrayRef<OutputSection *> OutputSections) {
972 for (auto &KV : ThunkSections) {1153 forEachInputSectionDescription(
973 std::vector<InputSection *> *ISR = KV.first;1154 OutputSections, [&](OutputSection *OS, InputSectionDescription *ISD) {
974 std::vector<ThunkSection *> &Thunks = KV.second;1155 if (ISD->ThunkSections.empty())
9751156 return;
976 // Order Thunks in ascending OutSecOff1157
977 auto ThunkCmp = [](const ThunkSection *A, const ThunkSection *B) {1158 // Remove any zero sized precreated Thunks.
978 return A->OutSecOff < B->OutSecOff;1159 llvm::erase_if(ISD->ThunkSections,
979 };1160 [](const std::pair<ThunkSection *, uint32_t> &TS) {
980 std::stable_sort(Thunks.begin(), Thunks.end(), ThunkCmp);1161 return TS.first->getSize() == 0;
9811162 });
982 // Merge sorted vectors of Thunks and InputSections by OutSecOff1163 // ISD->ThunkSections contains all created ThunkSections, including
983 std::vector<InputSection *> Tmp;1164 // those inserted in previous passes. Extract the Thunks created this
984 Tmp.reserve(ISR->size() + Thunks.size());1165 // pass and order them in ascending OutSecOff.
985 auto MergeCmp = [](const InputSection *A, const InputSection *B) {1166 std::vector<ThunkSection *> NewThunks;
986 // std::merge requires a strict weak ordering.1167 for (const std::pair<ThunkSection *, uint32_t> TS : ISD->ThunkSections)
987 if (A->OutSecOff < B->OutSecOff)1168 if (TS.second == Pass)
988 return true;1169 NewThunks.push_back(TS.first);
989 if (A->OutSecOff == B->OutSecOff)1170 std::stable_sort(NewThunks.begin(), NewThunks.end(),
990 // Check if Thunk is immediately before any specific Target InputSection1171 [](const ThunkSection *A, const ThunkSection *B) {
991 // for example Mips LA25 Thunks.1172 return A->OutSecOff < B->OutSecOff;
992 if (auto *TA = dyn_cast<ThunkSection>(A))1173 });
993 if (TA && TA->getTargetInputSection() == B)1174
1175 // Merge sorted vectors of Thunks and InputSections by OutSecOff
1176 std::vector<InputSection *> Tmp;
1177 Tmp.reserve(ISD->Sections.size() + NewThunks.size());
1178 auto MergeCmp = [](const InputSection *A, const InputSection *B) {
1179 // std::merge requires a strict weak ordering.
1180 if (A->OutSecOff < B->OutSecOff)
994 return true;1181 return true;
995 return false;1182 if (A->OutSecOff == B->OutSecOff) {
996 };1183 auto *TA = dyn_cast<ThunkSection>(A);
997 std::merge(ISR->begin(), ISR->end(), Thunks.begin(), Thunks.end(),1184 auto *TB = dyn_cast<ThunkSection>(B);
998 std::back_inserter(Tmp), MergeCmp);1185 // Check if Thunk is immediately before any specific Target
999 *ISR = std::move(Tmp);1186 // InputSection for example Mips LA25 Thunks.
1000 }1187 if (TA && TA->getTargetInputSection() == B)
1188 return true;
1189 if (TA && !TB && !TA->getTargetInputSection())
1190 // Place Thunk Sections without specific targets before
1191 // non-Thunk Sections.
1192 return true;
1193 }
1194 return false;
1195 };
1196 std::merge(ISD->Sections.begin(), ISD->Sections.end(),
1197 NewThunks.begin(), NewThunks.end(), std::back_inserter(Tmp),
1198 MergeCmp);
1199 ISD->Sections = std::move(Tmp);
1200 });
1001}1201}
10021202
1003static uint32_t findEndOfFirstNonExec(OutputSectionCommand &Cmd) {1203// Find or create a ThunkSection within the InputSectionDescription (ISD) that
1004 for (BaseCommand *Base : Cmd.Commands)1204// is in range of Src. An ISD maps to a range of InputSections described by a
1005 if (auto *ISD = dyn_cast<InputSectionDescription>(Base))1205// linker script section pattern such as { .text .text.* }.
1006 for (auto *IS : ISD->Sections)1206ThunkSection *ThunkCreator::getISDThunkSec(OutputSection *OS, InputSection *IS,
1007 if ((IS->Flags & SHF_EXECINSTR) == 0)1207 InputSectionDescription *ISD,
1008 return IS->OutSecOff + IS->getSize();1208 uint32_t Type, uint64_t Src) {
1009 return 0;1209 for (std::pair<ThunkSection *, uint32_t> TP : ISD->ThunkSections) {
1010}1210 ThunkSection *TS = TP.first;
1211 uint64_t TSBase = OS->Addr + TS->OutSecOff;
1212 uint64_t TSLimit = TSBase + TS->getSize();
1213 if (Target->inBranchRange(Type, Src, (Src > TSLimit) ? TSBase : TSLimit))
1214 return TS;
1215 }
10111216
1012ThunkSection *ThunkCreator::getOSThunkSec(OutputSectionCommand *Cmd,1217 // No suitable ThunkSection exists. This can happen when there is a branch
1013 std::vector<InputSection *> *ISR) {1218 // with lower range than the ThunkSection spacing or when there are too
1014 if (CurTS == nullptr) {1219 // many Thunks. Create a new ThunkSection as close to the InputSection as
1015 uint32_t Off = findEndOfFirstNonExec(*Cmd);1220 // possible. Error if InputSection is so large we cannot place ThunkSection
1016 CurTS = addThunkSection(Cmd->Sec, ISR, Off);1221 // anywhere in Range.
1222 uint64_t ThunkSecOff = IS->OutSecOff;
1223 if (!Target->inBranchRange(Type, Src, OS->Addr + ThunkSecOff)) {
1224 ThunkSecOff = IS->OutSecOff + IS->getSize();
1225 if (!Target->inBranchRange(Type, Src, OS->Addr + ThunkSecOff))
1226 fatal("InputSection too large for range extension thunk " +
1227 IS->getObjMsg(Src - (OS->Addr + IS->OutSecOff)));
1017 }1228 }
1018 return CurTS;1229 return addThunkSection(OS, ISD, ThunkSecOff);
1019}1230}
10201231
1021ThunkSection *ThunkCreator::getISThunkSec(InputSection *IS, OutputSection *OS) {1232// Add a Thunk that needs to be placed in a ThunkSection that immediately
1233// precedes its Target.
1234ThunkSection *ThunkCreator::getISThunkSec(InputSection *IS) {
1022 ThunkSection *TS = ThunkedSections.lookup(IS);1235 ThunkSection *TS = ThunkedSections.lookup(IS);
1023 if (TS)1236 if (TS)
1024 return TS;1237 return TS;
1025 auto *TOS = IS->getParent();
10261238
1027 // Find InputSectionRange within TOS that IS is in1239 // Find InputSectionRange within Target Output Section (TOS) that the
1028 OutputSectionCommand *C = Script->getCmd(TOS);1240 // InputSection (IS) that we need to precede is in.
1029 std::vector<InputSection *> *Range = nullptr;1241 OutputSection *TOS = IS->getParent();
1030 for (BaseCommand *BC : C->Commands)1242 for (BaseCommand *BC : TOS->SectionCommands)
1031 if (auto *ISD = dyn_cast<InputSectionDescription>(BC)) {1243 if (auto *ISD = dyn_cast<InputSectionDescription>(BC)) {
1244 if (ISD->Sections.empty())
1245 continue;
1032 InputSection *first = ISD->Sections.front();1246 InputSection *first = ISD->Sections.front();
1033 InputSection *last = ISD->Sections.back();1247 InputSection *last = ISD->Sections.back();
1034 if (IS->OutSecOff >= first->OutSecOff &&1248 if (IS->OutSecOff >= first->OutSecOff &&
1035 IS->OutSecOff <= last->OutSecOff) {1249 IS->OutSecOff <= last->OutSecOff) {
1036 Range = &ISD->Sections;1250 TS = addThunkSection(TOS, ISD, IS->OutSecOff);
1251 ThunkedSections[IS] = TS;
1037 break;1252 break;
1038 }1253 }
1039 }1254 }
1040 TS = addThunkSection(TOS, Range, IS->OutSecOff);
1041 ThunkedSections[IS] = TS;
1042 return TS;1255 return TS;
1043}1256}
10441257
1258// Create one or more ThunkSections per OS that can be used to place Thunks.
1259// We attempt to place the ThunkSections using the following desirable
1260// properties:
1261// - Within range of the maximum number of callers
1262// - Minimise the number of ThunkSections
1263//
1264// We follow a simple but conservative heuristic to place ThunkSections at
1265// offsets that are multiples of a Target specific branch range.
1266// For an InputSectionRange that is smaller than the range, a single
1267// ThunkSection at the end of the range will do.
1268void ThunkCreator::createInitialThunkSections(
1269 ArrayRef<OutputSection *> OutputSections) {
1270 forEachInputSectionDescription(
1271 OutputSections, [&](OutputSection *OS, InputSectionDescription *ISD) {
1272 if (ISD->Sections.empty())
1273 return;
1274 uint32_t ISLimit;
1275 uint32_t PrevISLimit = ISD->Sections.front()->OutSecOff;
1276 uint32_t ThunkUpperBound = PrevISLimit + Target->ThunkSectionSpacing;
1277
1278 for (const InputSection *IS : ISD->Sections) {
1279 ISLimit = IS->OutSecOff + IS->getSize();
1280 if (ISLimit > ThunkUpperBound) {
1281 addThunkSection(OS, ISD, PrevISLimit);
1282 ThunkUpperBound = PrevISLimit + Target->ThunkSectionSpacing;
1283 }
1284 PrevISLimit = ISLimit;
1285 }
1286 addThunkSection(OS, ISD, ISLimit);
1287 });
1288}
1289
1045ThunkSection *ThunkCreator::addThunkSection(OutputSection *OS,1290ThunkSection *ThunkCreator::addThunkSection(OutputSection *OS,
1046 std::vector<InputSection *> *ISR,1291 InputSectionDescription *ISD,
1047 uint64_t Off) {1292 uint64_t Off) {
1048 auto *TS = make<ThunkSection>(OS, Off);1293 auto *TS = make<ThunkSection>(OS, Off);
1049 ThunkSections[ISR].push_back(TS);1294 ISD->ThunkSections.push_back(std::make_pair(TS, Pass));
1050 return TS;1295 return TS;
1051}1296}
10521297
1053std::pair<Thunk *, bool> ThunkCreator::getThunk(SymbolBody &Body,1298std::pair<Thunk *, bool> ThunkCreator::getThunk(Symbol &Sym, RelType Type,
1054 uint32_t Type) {1299 uint64_t Src) {
1055 auto Res = ThunkedSymbols.insert({&Body, std::vector<Thunk *>()});1300 auto Res = ThunkedSymbols.insert({&Sym, std::vector<Thunk *>()});
1056 if (!Res.second) {1301 if (!Res.second) {
1057 // Check existing Thunks for Body to see if they can be reused1302 // Check existing Thunks for Sym to see if they can be reused
1058 for (Thunk *ET : Res.first->second)1303 for (Thunk *ET : Res.first->second)
1059 if (ET->isCompatibleWith(Type))1304 if (ET->isCompatibleWith(Type) &&
1305 Target->inBranchRange(Type, Src, ET->ThunkSym->getVA()))
1060 return std::make_pair(ET, false);1306 return std::make_pair(ET, false);
1061 }1307 }
1062 // No existing compatible Thunk in range, create a new one1308 // No existing compatible Thunk in range, create a new one
1063 Thunk *T = addThunk(Type, Body);1309 Thunk *T = addThunk(Type, Sym);
1064 Res.first->second.push_back(T);1310 Res.first->second.push_back(T);
1065 return std::make_pair(T, true);1311 return std::make_pair(T, true);
1066}1312}
10671313
1068// Call Fn on every executable InputSection accessed via the linker script1314// Call Fn on every executable InputSection accessed via the linker script
1069// InputSectionDescription::Sections.1315// InputSectionDescription::Sections.
1070void ThunkCreator::forEachExecInputSection(1316void ThunkCreator::forEachInputSectionDescription(
1071 ArrayRef<OutputSectionCommand *> OutputSections,1317 ArrayRef<OutputSection *> OutputSections,
1072 std::function<void(OutputSectionCommand *, std::vector<InputSection *> *,1318 std::function<void(OutputSection *, InputSectionDescription *)> Fn) {
1073 InputSection *)>1319 for (OutputSection *OS : OutputSections) {
1074 Fn) {
1075 for (OutputSectionCommand *Cmd : OutputSections) {
1076 OutputSection *OS = Cmd->Sec;
1077 if (!(OS->Flags & SHF_ALLOC) || !(OS->Flags & SHF_EXECINSTR))1320 if (!(OS->Flags & SHF_ALLOC) || !(OS->Flags & SHF_EXECINSTR))
1078 continue;1321 continue;
1079 for (BaseCommand *BC : Cmd->Commands)1322 for (BaseCommand *BC : OS->SectionCommands)
1080 if (auto *ISD = dyn_cast<InputSectionDescription>(BC)) {1323 if (auto *ISD = dyn_cast<InputSectionDescription>(BC))
1081 CurTS = nullptr;1324 Fn(OS, ISD);
1082 for (InputSection *IS : ISD->Sections)
1083 Fn(Cmd, &ISD->Sections, IS);
1084 }
1085 }1325 }
1086}1326}
10871327
1328// Return true if the relocation target is an in range Thunk.
1329// Return false if the relocation is not to a Thunk. If the relocation target
1330// was originally to a Thunk, but is no longer in range we revert the
1331// relocation back to its original non-Thunk target.
1332bool ThunkCreator::normalizeExistingThunk(Relocation &Rel, uint64_t Src) {
1333 if (Thunk *ET = Thunks.lookup(Rel.Sym)) {
1334 if (Target->inBranchRange(Rel.Type, Src, Rel.Sym->getVA()))
1335 return true;
1336 Rel.Sym = &ET->Destination;
1337 if (Rel.Sym->isInPlt())
1338 Rel.Expr = toPlt(Rel.Expr);
1339 }
1340 return false;
1341}
1342
1088// Process all relocations from the InputSections that have been assigned1343// Process all relocations from the InputSections that have been assigned
1089// to OutputSections and redirect through Thunks if needed.1344// to InputSectionDescriptions and redirect through Thunks if needed. The
1345// function should be called iteratively until it returns false.
1346//
1347// PreConditions:
1348// All InputSections that may need a Thunk are reachable from
1349// OutputSectionCommands.
1090//1350//
1091// createThunks must be called after scanRelocs has created the Relocations for1351// All OutputSections have an address and all InputSections have an offset
1092// each InputSection. It must be called before the static symbol table is1352// within the OutputSection.
1093// finalized. If any Thunks are added to an OutputSection the output section
1094// offsets of the InputSections will change.
1095//1353//
1096// FIXME: All Thunks are assumed to be in range of the relocation. Range1354// The offsets between caller (relocation place) and callee
1097// extension Thunks are not yet supported.1355// (relocation target) will not be modified outside of createThunks().
1098bool ThunkCreator::createThunks(1356//
1099 ArrayRef<OutputSectionCommand *> OutputSections) {1357// PostConditions:
1100 if (Pass > 0)1358// If return value is true then ThunkSections have been inserted into
1101 ThunkSections.clear();1359// OutputSections. All relocations that needed a Thunk based on the information
1360// available to createThunks() on entry have been redirected to a Thunk. Note
1361// that adding Thunks changes offsets between caller and callee so more Thunks
1362// may be required.
1363//
1364// If return value is false then no more Thunks are needed, and createThunks has
1365// made no changes. If the target requires range extension thunks, currently
1366// ARM, then any future change in offset between caller and callee risks a
1367// relocation out of range error.
1368bool ThunkCreator::createThunks(ArrayRef<OutputSection *> OutputSections) {
1369 bool AddressesChanged = false;
1370 if (Pass == 0 && Target->ThunkSectionSpacing)
1371 createInitialThunkSections(OutputSections);
1372 else if (Pass == 10)
1373 // With Thunk Size much smaller than branch range we expect to
1374 // converge quickly; if we get to 10 something has gone wrong.
1375 fatal("thunk creation not converged");
11021376
1103 // Create all the Thunks and insert them into synthetic ThunkSections. The1377 // Create all the Thunks and insert them into synthetic ThunkSections. The
1104 // ThunkSections are later inserted back into the OutputSection.1378 // ThunkSections are later inserted back into InputSectionDescriptions.
1105
1106 // We separate the creation of ThunkSections from the insertion of the1379 // We separate the creation of ThunkSections from the insertion of the
1107 // ThunkSections back into the OutputSection as ThunkSections are not always1380 // ThunkSections as ThunkSections are not always inserted into the same
1108 // inserted into the same OutputSection as the caller.1381 // InputSectionDescription as the caller.
1109 forEachExecInputSection(OutputSections, [&](OutputSectionCommand *Cmd,1382 forEachInputSectionDescription(
1110 std::vector<InputSection *> *ISR,1383 OutputSections, [&](OutputSection *OS, InputSectionDescription *ISD) {
1111 InputSection *IS) {1384 for (InputSection *IS : ISD->Sections)
1112 for (Relocation &Rel : IS->Relocations) {1385 for (Relocation &Rel : IS->Relocations) {
1113 SymbolBody &Body = *Rel.Sym;1386 uint64_t Src = OS->Addr + IS->OutSecOff + Rel.Offset;
1114 if (Thunks.find(&Body) != Thunks.end() ||1387
1115 !Target->needsThunk(Rel.Expr, Rel.Type, IS->File, Body))1388 // If we are a relocation to an existing Thunk, check if it is
1116 continue;1389 // still in range. If not then Rel will be altered to point to its
1117 Thunk *T;1390 // original target so another Thunk can be generated.
1118 bool IsNew;1391 if (Pass > 0 && normalizeExistingThunk(Rel, Src))
1119 std::tie(T, IsNew) = getThunk(Body, Rel.Type);1392 continue;
1120 if (IsNew) {1393
1121 // Find or create a ThunkSection for the new Thunk1394 if (!Target->needsThunk(Rel.Expr, Rel.Type, IS->File, Src,
1122 ThunkSection *TS;1395 *Rel.Sym))
1123 if (auto *TIS = T->getTargetInputSection())1396 continue;
1124 TS = getISThunkSec(TIS, Cmd->Sec);1397 Thunk *T;
1125 else1398 bool IsNew;
1126 TS = getOSThunkSec(Cmd, ISR);1399 std::tie(T, IsNew) = getThunk(*Rel.Sym, Rel.Type, Src);
1127 TS->addThunk(T);1400 if (IsNew) {
1128 Thunks[T->ThunkSym] = T;1401 AddressesChanged = true;
1129 }1402 // Find or create a ThunkSection for the new Thunk
1130 // Redirect relocation to Thunk, we never go via the PLT to a Thunk1403 ThunkSection *TS;
1131 Rel.Sym = T->ThunkSym;1404 if (auto *TIS = T->getTargetInputSection())
1132 Rel.Expr = fromPlt(Rel.Expr);1405 TS = getISThunkSec(TIS);
1133 }1406 else
1134 });1407 TS = getISDThunkSec(OS, IS, ISD, Rel.Type, Src);
1408 TS->addThunk(T);
1409 Thunks[T->ThunkSym] = T;
1410 }
1411 // Redirect relocation to Thunk, we never go via the PLT to a Thunk
1412 Rel.Sym = T->ThunkSym;
1413 Rel.Expr = fromPlt(Rel.Expr);
1414 }
1415 });
1135 // Merge all created synthetic ThunkSections back into OutputSection1416 // Merge all created synthetic ThunkSections back into OutputSection
1136 mergeThunks();1417 mergeThunks(OutputSections);
1137 ++Pass;1418 ++Pass;
1138 return !ThunkSections.empty();1419 return AddressesChanged;
1139}1420}
11401421
1141template void elf::scanRelocations<ELF32LE>(InputSectionBase &);1422template void elf::scanRelocations<ELF32LE>(InputSectionBase &);
deps/lld/ELF/Relocations.h+34-30
...@@ -10,23 +10,27 @@...@@ -10,23 +10,27 @@
10#ifndef LLD_ELF_RELOCATIONS_H10#ifndef LLD_ELF_RELOCATIONS_H
11#define LLD_ELF_RELOCATIONS_H11#define LLD_ELF_RELOCATIONS_H
1212
13#include "lld/Core/LLVM.h"13#include "lld/Common/LLVM.h"
14#include "llvm/ADT/DenseMap.h"14#include "llvm/ADT/DenseMap.h"
15#include <map>15#include <map>
16#include <vector>16#include <vector>
1717
18namespace lld {18namespace lld {
19namespace elf {19namespace elf {
20class SymbolBody;20class Symbol;
21class InputSection;21class InputSection;
22class InputSectionBase;22class InputSectionBase;
23class OutputSection;23class OutputSection;
24struct OutputSectionCommand;24class OutputSection;
25
26// Represents a relocation type, such as R_X86_64_PC32 or R_ARM_THM_CALL.
27typedef uint32_t RelType;
2528
26// List of target-independent relocation types. Relocations read29// List of target-independent relocation types. Relocations read
27// from files are converted to these types so that the main code30// from files are converted to these types so that the main code
28// doesn't have to know about architecture-specific details.31// doesn't have to know about architecture-specific details.
29enum RelExpr {32enum RelExpr {
33 R_INVALID,
30 R_ABS,34 R_ABS,
31 R_ARM_SBREL,35 R_ARM_SBREL,
32 R_GOT,36 R_GOT,
...@@ -111,21 +115,22 @@ template <RelExpr... Exprs> bool isRelExprOneOf(RelExpr Expr) {...@@ -111,21 +115,22 @@ template <RelExpr... Exprs> bool isRelExprOneOf(RelExpr Expr) {
111// Architecture-neutral representation of relocation.115// Architecture-neutral representation of relocation.
112struct Relocation {116struct Relocation {
113 RelExpr Expr;117 RelExpr Expr;
114 uint32_t Type;118 RelType Type;
115 uint64_t Offset;119 uint64_t Offset;
116 int64_t Addend;120 int64_t Addend;
117 SymbolBody *Sym;121 Symbol *Sym;
118};122};
119123
120template <class ELFT> void scanRelocations(InputSectionBase &);124template <class ELFT> void scanRelocations(InputSectionBase &);
121125
122class ThunkSection;126class ThunkSection;
123class Thunk;127class Thunk;
128struct InputSectionDescription;
124129
125class ThunkCreator {130class ThunkCreator {
126public:131public:
127 // Return true if Thunks have been added to OutputSections132 // Return true if Thunks have been added to OutputSections
128 bool createThunks(ArrayRef<OutputSectionCommand *> OutputSections);133 bool createThunks(ArrayRef<OutputSection *> OutputSections);
129134
130 // The number of completed passes of createThunks this permits us135 // The number of completed passes of createThunks this permits us
131 // to do one time initialization on Pass 0 and put a limit on the136 // to do one time initialization on Pass 0 and put a limit on the
...@@ -133,40 +138,39 @@ public:...@@ -133,40 +138,39 @@ public:
133 uint32_t Pass = 0;138 uint32_t Pass = 0;
134139
135private:140private:
136 void mergeThunks();141 void mergeThunks(ArrayRef<OutputSection *> OutputSections);
137 ThunkSection *getOSThunkSec(OutputSectionCommand *Cmd,142
138 std::vector<InputSection *> *ISR);143 ThunkSection *getISDThunkSec(OutputSection *OS, InputSection *IS,
139 ThunkSection *getISThunkSec(InputSection *IS, OutputSection *OS);144 InputSectionDescription *ISD, uint32_t Type,
140 void forEachExecInputSection(145 uint64_t Src);
141 ArrayRef<OutputSectionCommand *> OutputSections,146
142 std::function<void(OutputSectionCommand *, std::vector<InputSection *> *,147 ThunkSection *getISThunkSec(InputSection *IS);
143 InputSection *)>148
144 Fn);149 void createInitialThunkSections(ArrayRef<OutputSection *> OutputSections);
145 std::pair<Thunk *, bool> getThunk(SymbolBody &Body, uint32_t Type);150
146 ThunkSection *addThunkSection(OutputSection *OS,151 void forEachInputSectionDescription(
147 std::vector<InputSection *> *, uint64_t Off);152 ArrayRef<OutputSection *> OutputSections,
153 std::function<void(OutputSection *, InputSectionDescription *)> Fn);
154
155 std::pair<Thunk *, bool> getThunk(Symbol &Sym, RelType Type, uint64_t Src);
156
157 ThunkSection *addThunkSection(OutputSection *OS, InputSectionDescription *,
158 uint64_t Off);
159
160 bool normalizeExistingThunk(Relocation &Rel, uint64_t Src);
161
148 // Record all the available Thunks for a Symbol162 // Record all the available Thunks for a Symbol
149 llvm::DenseMap<SymbolBody *, std::vector<Thunk *>> ThunkedSymbols;163 llvm::DenseMap<Symbol *, std::vector<Thunk *>> ThunkedSymbols;
150164
151 // Find a Thunk from the Thunks symbol definition, we can use this to find165 // Find a Thunk from the Thunks symbol definition, we can use this to find
152 // the Thunk from a relocation to the Thunks symbol definition.166 // the Thunk from a relocation to the Thunks symbol definition.
153 llvm::DenseMap<SymbolBody *, Thunk *> Thunks;167 llvm::DenseMap<Symbol *, Thunk *> Thunks;
154168
155 // Track InputSections that have an inline ThunkSection placed in front169 // Track InputSections that have an inline ThunkSection placed in front
156 // an inline ThunkSection may have control fall through to the section below170 // an inline ThunkSection may have control fall through to the section below
157 // so we need to make sure that there is only one of them.171 // so we need to make sure that there is only one of them.
158 // The Mips LA25 Thunk is an example of an inline ThunkSection.172 // The Mips LA25 Thunk is an example of an inline ThunkSection.
159 llvm::DenseMap<InputSection *, ThunkSection *> ThunkedSections;173 llvm::DenseMap<InputSection *, ThunkSection *> ThunkedSections;
160
161 // All the ThunkSections that we have created, organised by OutputSection
162 // will contain a mix of ThunkSections that have been created this pass, and
163 // ThunkSections that have been merged into the OutputSection on previous
164 // passes
165 std::map<std::vector<InputSection *> *, std::vector<ThunkSection *>>
166 ThunkSections;
167
168 // The ThunkSection for this vector of InputSections
169 ThunkSection *CurTS;
170};174};
171175
172// Return a int64_t to make sure we get the sign extension out of the way as176// Return a int64_t to make sure we get the sign extension out of the way as
deps/lld/ELF/ScriptLexer.cpp+31-23
...@@ -33,7 +33,7 @@...@@ -33,7 +33,7 @@
33//===----------------------------------------------------------------------===//33//===----------------------------------------------------------------------===//
3434
35#include "ScriptLexer.h"35#include "ScriptLexer.h"
36#include "Error.h"36#include "lld/Common/ErrorHandler.h"
37#include "llvm/ADT/Twine.h"37#include "llvm/ADT/Twine.h"
3838
39using namespace llvm;39using namespace llvm;
...@@ -75,19 +75,14 @@ ScriptLexer::ScriptLexer(MemoryBufferRef MB) { tokenize(MB); }...@@ -75,19 +75,14 @@ ScriptLexer::ScriptLexer(MemoryBufferRef MB) { tokenize(MB); }
7575
76// We don't want to record cascading errors. Keep only the first one.76// We don't want to record cascading errors. Keep only the first one.
77void ScriptLexer::setError(const Twine &Msg) {77void ScriptLexer::setError(const Twine &Msg) {
78 if (Error)78 if (errorCount())
79 return;79 return;
80 Error = true;
8180
82 if (!Pos) {81 std::string S = (getCurrentLocation() + ": " + Msg).str();
83 error(getCurrentLocation() + ": " + Msg);82 if (Pos)
84 return;83 S += "\n>>> " + getLine().str() + "\n>>> " +
85 }84 std::string(getColumnNumber(), ' ') + "^";
8685 error(S);
87 std::string S = getCurrentLocation() + ": ";
88 error(S + Msg);
89 error(S + getLine());
90 error(S + std::string(getColumnNumber(), ' ') + "^");
91}86}
9287
93// Split S into linker script tokens.88// Split S into linker script tokens.
...@@ -120,11 +115,19 @@ void ScriptLexer::tokenize(MemoryBufferRef MB) {...@@ -120,11 +115,19 @@ void ScriptLexer::tokenize(MemoryBufferRef MB) {
120 continue;115 continue;
121 }116 }
122117
118 // ">foo" is parsed to ">" and "foo", but ">>" is parsed to ">>".
119 if (S.startswith("<<") || S.startswith("<=") || S.startswith(">>") ||
120 S.startswith(">=")) {
121 Vec.push_back(S.substr(0, 2));
122 S = S.substr(2);
123 continue;
124 }
125
123 // Unquoted token. This is more relaxed than tokens in C-like language,126 // Unquoted token. This is more relaxed than tokens in C-like language,
124 // so that you can write "file-name.cpp" as one bare token, for example.127 // so that you can write "file-name.cpp" as one bare token, for example.
125 size_t Pos = S.find_first_not_of(128 size_t Pos = S.find_first_not_of(
126 "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz"129 "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz"
127 "0123456789_.$/\\~=+[]*?-!<>^:");130 "0123456789_.$/\\~=+[]*?-!^:");
128131
129 // A character that cannot start a word (which is usually a132 // A character that cannot start a word (which is usually a
130 // punctuation) forms a single character token.133 // punctuation) forms a single character token.
...@@ -164,18 +167,18 @@ StringRef ScriptLexer::skipSpace(StringRef S) {...@@ -164,18 +167,18 @@ StringRef ScriptLexer::skipSpace(StringRef S) {
164}167}
165168
166// An erroneous token is handled as if it were the last token before EOF.169// An erroneous token is handled as if it were the last token before EOF.
167bool ScriptLexer::atEOF() { return Error || Tokens.size() == Pos; }170bool ScriptLexer::atEOF() { return errorCount() || Tokens.size() == Pos; }
168171
169// Split a given string as an expression.172// Split a given string as an expression.
170// This function returns "3", "*" and "5" for "3*5" for example.173// This function returns "3", "*" and "5" for "3*5" for example.
171static std::vector<StringRef> tokenizeExpr(StringRef S) {174static std::vector<StringRef> tokenizeExpr(StringRef S) {
172 StringRef Ops = "+-*/:"; // List of operators175 StringRef Ops = "+-*/:!~"; // List of operators
173176
174 // Quoted strings are literal strings, so we don't want to split it.177 // Quoted strings are literal strings, so we don't want to split it.
175 if (S.startswith("\""))178 if (S.startswith("\""))
176 return {S};179 return {S};
177180
178 // Split S with +-*/ as separators.181 // Split S with operators as separators.
179 std::vector<StringRef> Ret;182 std::vector<StringRef> Ret;
180 while (!S.empty()) {183 while (!S.empty()) {
181 size_t E = S.find_first_of(Ops);184 size_t E = S.find_first_of(Ops);
...@@ -190,9 +193,14 @@ static std::vector<StringRef> tokenizeExpr(StringRef S) {...@@ -190,9 +193,14 @@ static std::vector<StringRef> tokenizeExpr(StringRef S) {
190 if (E != 0)193 if (E != 0)
191 Ret.push_back(S.substr(0, E));194 Ret.push_back(S.substr(0, E));
192195
193 // Get the operator as a token.196 // Get the operator as a token. Keep != as one token.
194 Ret.push_back(S.substr(E, 1));197 if (S.substr(E).startswith("!=")) {
195 S = S.substr(E + 1);198 Ret.push_back(S.substr(E, 2));
199 S = S.substr(E + 2);
200 } else {
201 Ret.push_back(S.substr(E, 1));
202 S = S.substr(E + 1);
203 }
196 }204 }
197 return Ret;205 return Ret;
198}206}
...@@ -207,7 +215,7 @@ static std::vector<StringRef> tokenizeExpr(StringRef S) {...@@ -207,7 +215,7 @@ static std::vector<StringRef> tokenizeExpr(StringRef S) {
207//215//
208// This function may split the current token into multiple tokens.216// This function may split the current token into multiple tokens.
209void ScriptLexer::maybeSplitExpr() {217void ScriptLexer::maybeSplitExpr() {
210 if (!InExpr || Error || atEOF())218 if (!InExpr || errorCount() || atEOF())
211 return;219 return;
212220
213 std::vector<StringRef> V = tokenizeExpr(Tokens[Pos]);221 std::vector<StringRef> V = tokenizeExpr(Tokens[Pos]);
...@@ -220,7 +228,7 @@ void ScriptLexer::maybeSplitExpr() {...@@ -220,7 +228,7 @@ void ScriptLexer::maybeSplitExpr() {
220StringRef ScriptLexer::next() {228StringRef ScriptLexer::next() {
221 maybeSplitExpr();229 maybeSplitExpr();
222230
223 if (Error)231 if (errorCount())
224 return "";232 return "";
225 if (atEOF()) {233 if (atEOF()) {
226 setError("unexpected EOF");234 setError("unexpected EOF");
...@@ -231,7 +239,7 @@ StringRef ScriptLexer::next() {...@@ -231,7 +239,7 @@ StringRef ScriptLexer::next() {
231239
232StringRef ScriptLexer::peek() {240StringRef ScriptLexer::peek() {
233 StringRef Tok = next();241 StringRef Tok = next();
234 if (Error)242 if (errorCount())
235 return "";243 return "";
236 Pos = Pos - 1;244 Pos = Pos - 1;
237 return Tok;245 return Tok;
...@@ -260,7 +268,7 @@ bool ScriptLexer::consumeLabel(StringRef Tok) {...@@ -260,7 +268,7 @@ bool ScriptLexer::consumeLabel(StringRef Tok) {
260void ScriptLexer::skip() { (void)next(); }268void ScriptLexer::skip() { (void)next(); }
261269
262void ScriptLexer::expect(StringRef Expect) {270void ScriptLexer::expect(StringRef Expect) {
263 if (Error)271 if (errorCount())
264 return;272 return;
265 StringRef Tok = next();273 StringRef Tok = next();
266 if (Tok != Expect)274 if (Tok != Expect)
deps/lld/ELF/ScriptLexer.h+1-2
...@@ -10,7 +10,7 @@...@@ -10,7 +10,7 @@
10#ifndef LLD_ELF_SCRIPT_LEXER_H10#ifndef LLD_ELF_SCRIPT_LEXER_H
11#define LLD_ELF_SCRIPT_LEXER_H11#define LLD_ELF_SCRIPT_LEXER_H
1212
13#include "lld/Core/LLVM.h"13#include "lld/Common/LLVM.h"
14#include "llvm/ADT/StringRef.h"14#include "llvm/ADT/StringRef.h"
15#include "llvm/Support/MemoryBuffer.h"15#include "llvm/Support/MemoryBuffer.h"
16#include <utility>16#include <utility>
...@@ -39,7 +39,6 @@ public:...@@ -39,7 +39,6 @@ public:
39 std::vector<StringRef> Tokens;39 std::vector<StringRef> Tokens;
40 bool InExpr = false;40 bool InExpr = false;
41 size_t Pos = 0;41 size_t Pos = 0;
42 bool Error = false;
4342
44private:43private:
45 void maybeSplitExpr();44 void maybeSplitExpr();
deps/lld/ELF/ScriptParser.cpp+195-108
...@@ -17,13 +17,14 @@...@@ -17,13 +17,14 @@
17#include "Driver.h"17#include "Driver.h"
18#include "InputSection.h"18#include "InputSection.h"
19#include "LinkerScript.h"19#include "LinkerScript.h"
20#include "Memory.h"
21#include "OutputSections.h"20#include "OutputSections.h"
22#include "ScriptLexer.h"21#include "ScriptLexer.h"
23#include "Symbols.h"22#include "Symbols.h"
24#include "Target.h"23#include "Target.h"
24#include "lld/Common/Memory.h"
25#include "llvm/ADT/SmallString.h"25#include "llvm/ADT/SmallString.h"
26#include "llvm/ADT/StringRef.h"26#include "llvm/ADT/StringRef.h"
27#include "llvm/ADT/StringSet.h"
27#include "llvm/ADT/StringSwitch.h"28#include "llvm/ADT/StringSwitch.h"
28#include "llvm/BinaryFormat/ELF.h"29#include "llvm/BinaryFormat/ELF.h"
29#include "llvm/Support/Casting.h"30#include "llvm/Support/Casting.h"
...@@ -52,10 +53,10 @@ public:...@@ -52,10 +53,10 @@ public:
52 void readLinkerScript();53 void readLinkerScript();
53 void readVersionScript();54 void readVersionScript();
54 void readDynamicList();55 void readDynamicList();
56 void readDefsym(StringRef Name);
5557
56private:58private:
57 void addFile(StringRef Path);59 void addFile(StringRef Path);
58 OutputSection *checkSection(OutputSectionCommand *Cmd, StringRef Loccation);
5960
60 void readAsNeeded();61 void readAsNeeded();
61 void readEntry();62 void readEntry();
...@@ -67,17 +68,18 @@ private:...@@ -67,17 +68,18 @@ private:
67 void readOutputArch();68 void readOutputArch();
68 void readOutputFormat();69 void readOutputFormat();
69 void readPhdrs();70 void readPhdrs();
71 void readRegionAlias();
70 void readSearchDir();72 void readSearchDir();
71 void readSections();73 void readSections();
72 void readVersion();74 void readVersion();
73 void readVersionScriptCommand();75 void readVersionScriptCommand();
7476
75 SymbolAssignment *readAssignment(StringRef Name);77 SymbolAssignment *readAssignment(StringRef Name);
76 BytesDataCommand *readBytesDataCommand(StringRef Tok);78 ByteCommand *readByteCommand(StringRef Tok);
77 uint32_t readFill();79 uint32_t readFill();
78 uint32_t parseFill(StringRef Tok);80 uint32_t parseFill(StringRef Tok);
79 void readSectionAddressType(OutputSectionCommand *Cmd);81 void readSectionAddressType(OutputSection *Cmd);
80 OutputSectionCommand *readOutputSectionDescription(StringRef OutSec);82 OutputSection *readOutputSectionDescription(StringRef OutSec);
81 std::vector<StringRef> readOutputSectionPhdrs();83 std::vector<StringRef> readOutputSectionPhdrs();
82 InputSectionDescription *readInputSectionDescription(StringRef Tok);84 InputSectionDescription *readInputSectionDescription(StringRef Tok);
83 StringMatcher readFilePatterns();85 StringMatcher readFilePatterns();
...@@ -90,6 +92,8 @@ private:...@@ -90,6 +92,8 @@ private:
90 void readSort();92 void readSort();
91 AssertCommand *readAssert();93 AssertCommand *readAssert();
92 Expr readAssertExpr();94 Expr readAssertExpr();
95 Expr readConstant();
96 Expr getPageSize();
9397
94 uint64_t readMemoryAssignment(StringRef, StringRef, StringRef);98 uint64_t readMemoryAssignment(StringRef, StringRef, StringRef);
95 std::pair<uint32_t, uint32_t> readMemoryAttributes();99 std::pair<uint32_t, uint32_t> readMemoryAttributes();
...@@ -109,7 +113,11 @@ private:...@@ -109,7 +113,11 @@ private:
109 std::pair<std::vector<SymbolVersion>, std::vector<SymbolVersion>>113 std::pair<std::vector<SymbolVersion>, std::vector<SymbolVersion>>
110 readSymbols();114 readSymbols();
111115
116 // True if a script being read is in a subdirectory specified by -sysroot.
112 bool IsUnderSysroot;117 bool IsUnderSysroot;
118
119 // A set to detect an INCLUDE() cycle.
120 StringSet<> Seen;
113};121};
114} // namespace122} // namespace
115123
...@@ -131,7 +139,7 @@ static bool isUnderSysroot(StringRef Path) {...@@ -131,7 +139,7 @@ static bool isUnderSysroot(StringRef Path) {
131// Some operations only support one non absolute value. Move the139// Some operations only support one non absolute value. Move the
132// absolute one to the right hand side for convenience.140// absolute one to the right hand side for convenience.
133static void moveAbsRight(ExprValue &A, ExprValue &B) {141static void moveAbsRight(ExprValue &A, ExprValue &B) {
134 if (A.isAbsolute())142 if (A.Sec == nullptr || (A.ForceAbsolute && !B.isAbsolute()))
135 std::swap(A, B);143 std::swap(A, B);
136 if (!B.isAbsolute())144 if (!B.isAbsolute())
137 error(A.Loc + ": at least one side of the expression must be absolute");145 error(A.Loc + ": at least one side of the expression must be absolute");
...@@ -139,11 +147,14 @@ static void moveAbsRight(ExprValue &A, ExprValue &B) {...@@ -139,11 +147,14 @@ static void moveAbsRight(ExprValue &A, ExprValue &B) {
139147
140static ExprValue add(ExprValue A, ExprValue B) {148static ExprValue add(ExprValue A, ExprValue B) {
141 moveAbsRight(A, B);149 moveAbsRight(A, B);
142 return {A.Sec, A.ForceAbsolute, A.Val + B.getValue(), A.Loc};150 return {A.Sec, A.ForceAbsolute, A.getSectionOffset() + B.getValue(), A.Loc};
143}151}
144152
145static ExprValue sub(ExprValue A, ExprValue B) {153static ExprValue sub(ExprValue A, ExprValue B) {
146 return {A.Sec, A.Val - B.getValue(), A.Loc};154 // The distance between two symbols in sections is absolute.
155 if (!A.isAbsolute() && !B.isAbsolute())
156 return A.getValue() - B.getValue();
157 return {A.Sec, false, A.getSectionOffset() - B.getValue(), A.Loc};
147}158}
148159
149static ExprValue mul(ExprValue A, ExprValue B) {160static ExprValue mul(ExprValue A, ExprValue B) {
...@@ -170,10 +181,24 @@ static ExprValue bitOr(ExprValue A, ExprValue B) {...@@ -170,10 +181,24 @@ static ExprValue bitOr(ExprValue A, ExprValue B) {
170}181}
171182
172void ScriptParser::readDynamicList() {183void ScriptParser::readDynamicList() {
184 Config->HasDynamicList = true;
173 expect("{");185 expect("{");
174 readAnonymousDeclaration();186 std::vector<SymbolVersion> Locals;
175 if (!atEOF())187 std::vector<SymbolVersion> Globals;
188 std::tie(Locals, Globals) = readSymbols();
189 expect(";");
190
191 if (!atEOF()) {
176 setError("EOF expected, but got " + next());192 setError("EOF expected, but got " + next());
193 return;
194 }
195 if (!Locals.empty()) {
196 setError("\"local:\" scope not supported in --dynamic-list");
197 return;
198 }
199
200 for (SymbolVersion V : Globals)
201 Config->DynamicList.push_back(V);
177}202}
178203
179void ScriptParser::readVersionScript() {204void ScriptParser::readVersionScript() {
...@@ -188,7 +213,7 @@ void ScriptParser::readVersionScriptCommand() {...@@ -188,7 +213,7 @@ void ScriptParser::readVersionScriptCommand() {
188 return;213 return;
189 }214 }
190215
191 while (!atEOF() && !Error && peek() != "}") {216 while (!atEOF() && !errorCount() && peek() != "}") {
192 StringRef VerStr = next();217 StringRef VerStr = next();
193 if (VerStr == "{") {218 if (VerStr == "{") {
194 setError("anonymous version definition is used in "219 setError("anonymous version definition is used in "
...@@ -213,7 +238,7 @@ void ScriptParser::readLinkerScript() {...@@ -213,7 +238,7 @@ void ScriptParser::readLinkerScript() {
213 continue;238 continue;
214239
215 if (Tok == "ASSERT") {240 if (Tok == "ASSERT") {
216 Script->Opt.Commands.push_back(readAssert());241 Script->SectionCommands.push_back(readAssert());
217 } else if (Tok == "ENTRY") {242 } else if (Tok == "ENTRY") {
218 readEntry();243 readEntry();
219 } else if (Tok == "EXTERN") {244 } else if (Tok == "EXTERN") {
...@@ -232,6 +257,8 @@ void ScriptParser::readLinkerScript() {...@@ -232,6 +257,8 @@ void ScriptParser::readLinkerScript() {
232 readOutputFormat();257 readOutputFormat();
233 } else if (Tok == "PHDRS") {258 } else if (Tok == "PHDRS") {
234 readPhdrs();259 readPhdrs();
260 } else if (Tok == "REGION_ALIAS") {
261 readRegionAlias();
235 } else if (Tok == "SEARCH_DIR") {262 } else if (Tok == "SEARCH_DIR") {
236 readSearchDir();263 readSearchDir();
237 } else if (Tok == "SECTIONS") {264 } else if (Tok == "SECTIONS") {
...@@ -239,13 +266,21 @@ void ScriptParser::readLinkerScript() {...@@ -239,13 +266,21 @@ void ScriptParser::readLinkerScript() {
239 } else if (Tok == "VERSION") {266 } else if (Tok == "VERSION") {
240 readVersion();267 readVersion();
241 } else if (SymbolAssignment *Cmd = readProvideOrAssignment(Tok)) {268 } else if (SymbolAssignment *Cmd = readProvideOrAssignment(Tok)) {
242 Script->Opt.Commands.push_back(Cmd);269 Script->SectionCommands.push_back(Cmd);
243 } else {270 } else {
244 setError("unknown directive: " + Tok);271 setError("unknown directive: " + Tok);
245 }272 }
246 }273 }
247}274}
248275
276void ScriptParser::readDefsym(StringRef Name) {
277 Expr E = readExpr();
278 if (!atEOF())
279 setError("EOF expected, but got " + next());
280 SymbolAssignment *Cmd = make<SymbolAssignment>(Name, E, getCurrentLocation());
281 Script->SectionCommands.push_back(Cmd);
282}
283
249void ScriptParser::addFile(StringRef S) {284void ScriptParser::addFile(StringRef S) {
250 if (IsUnderSysroot && S.startswith("/")) {285 if (IsUnderSysroot && S.startswith("/")) {
251 SmallString<128> PathData;286 SmallString<128> PathData;
...@@ -256,7 +291,7 @@ void ScriptParser::addFile(StringRef S) {...@@ -256,7 +291,7 @@ void ScriptParser::addFile(StringRef S) {
256 }291 }
257 }292 }
258293
259 if (sys::path::is_absolute(S)) {294 if (S.startswith("/")) {
260 Driver->addFile(S, /*WithLOption=*/false);295 Driver->addFile(S, /*WithLOption=*/false);
261 } else if (S.startswith("=")) {296 } else if (S.startswith("=")) {
262 if (Config->Sysroot.empty())297 if (Config->Sysroot.empty())
...@@ -280,7 +315,7 @@ void ScriptParser::readAsNeeded() {...@@ -280,7 +315,7 @@ void ScriptParser::readAsNeeded() {
280 expect("(");315 expect("(");
281 bool Orig = Config->AsNeeded;316 bool Orig = Config->AsNeeded;
282 Config->AsNeeded = true;317 Config->AsNeeded = true;
283 while (!Error && !consume(")"))318 while (!errorCount() && !consume(")"))
284 addFile(unquote(next()));319 addFile(unquote(next()));
285 Config->AsNeeded = Orig;320 Config->AsNeeded = Orig;
286}321}
...@@ -296,13 +331,13 @@ void ScriptParser::readEntry() {...@@ -296,13 +331,13 @@ void ScriptParser::readEntry() {
296331
297void ScriptParser::readExtern() {332void ScriptParser::readExtern() {
298 expect("(");333 expect("(");
299 while (!Error && !consume(")"))334 while (!errorCount() && !consume(")"))
300 Config->Undefined.push_back(next());335 Config->Undefined.push_back(next());
301}336}
302337
303void ScriptParser::readGroup() {338void ScriptParser::readGroup() {
304 expect("(");339 expect("(");
305 while (!Error && !consume(")")) {340 while (!errorCount() && !consume(")")) {
306 if (consume("AS_NEEDED"))341 if (consume("AS_NEEDED"))
307 readAsNeeded();342 readAsNeeded();
308 else343 else
...@@ -313,20 +348,17 @@ void ScriptParser::readGroup() {...@@ -313,20 +348,17 @@ void ScriptParser::readGroup() {
313void ScriptParser::readInclude() {348void ScriptParser::readInclude() {
314 StringRef Tok = unquote(next());349 StringRef Tok = unquote(next());
315350
316 // https://sourceware.org/binutils/docs/ld/File-Commands.html:351 if (!Seen.insert(Tok).second) {
317 // The file will be searched for in the current directory, and in any352 setError("there is a cycle in linker script INCLUDEs");
318 // directory specified with the -L option.
319 if (sys::fs::exists(Tok)) {
320 if (Optional<MemoryBufferRef> MB = readFile(Tok))
321 tokenize(*MB);
322 return;353 return;
323 }354 }
324 if (Optional<std::string> Path = findFromSearchPaths(Tok)) {355
356 if (Optional<std::string> Path = searchLinkerScript(Tok)) {
325 if (Optional<MemoryBufferRef> MB = readFile(*Path))357 if (Optional<MemoryBufferRef> MB = readFile(*Path))
326 tokenize(*MB);358 tokenize(*MB);
327 return;359 return;
328 }360 }
329 setError("cannot open " + Tok);361 setError("cannot find linker script " + Tok);
330}362}
331363
332void ScriptParser::readOutput() {364void ScriptParser::readOutput() {
...@@ -341,7 +373,7 @@ void ScriptParser::readOutput() {...@@ -341,7 +373,7 @@ void ScriptParser::readOutput() {
341void ScriptParser::readOutputArch() {373void ScriptParser::readOutputArch() {
342 // OUTPUT_ARCH is ignored for now.374 // OUTPUT_ARCH is ignored for now.
343 expect("(");375 expect("(");
344 while (!Error && !consume(")"))376 while (!errorCount() && !consume(")"))
345 skip();377 skip();
346}378}
347379
...@@ -360,28 +392,43 @@ void ScriptParser::readOutputFormat() {...@@ -360,28 +392,43 @@ void ScriptParser::readOutputFormat() {
360392
361void ScriptParser::readPhdrs() {393void ScriptParser::readPhdrs() {
362 expect("{");394 expect("{");
363 while (!Error && !consume("}")) {
364 Script->Opt.PhdrsCommands.push_back(
365 {next(), PT_NULL, false, false, UINT_MAX, nullptr});
366395
367 PhdrsCommand &PhdrCmd = Script->Opt.PhdrsCommands.back();396 while (!errorCount() && !consume("}")) {
368 PhdrCmd.Type = readPhdrType();397 PhdrsCommand Cmd;
398 Cmd.Name = next();
399 Cmd.Type = readPhdrType();
369400
370 while (!Error && !consume(";")) {401 while (!errorCount() && !consume(";")) {
371 if (consume("FILEHDR"))402 if (consume("FILEHDR"))
372 PhdrCmd.HasFilehdr = true;403 Cmd.HasFilehdr = true;
373 else if (consume("PHDRS"))404 else if (consume("PHDRS"))
374 PhdrCmd.HasPhdrs = true;405 Cmd.HasPhdrs = true;
375 else if (consume("AT"))406 else if (consume("AT"))
376 PhdrCmd.LMAExpr = readParenExpr();407 Cmd.LMAExpr = readParenExpr();
377 else if (consume("FLAGS"))408 else if (consume("FLAGS"))
378 PhdrCmd.Flags = readParenExpr()().getValue();409 Cmd.Flags = readParenExpr()().getValue();
379 else410 else
380 setError("unexpected header attribute: " + next());411 setError("unexpected header attribute: " + next());
381 }412 }
413
414 Script->PhdrsCommands.push_back(Cmd);
382 }415 }
383}416}
384417
418void ScriptParser::readRegionAlias() {
419 expect("(");
420 StringRef Alias = unquote(next());
421 expect(",");
422 StringRef Name = next();
423 expect(")");
424
425 if (Script->MemoryRegions.count(Alias))
426 setError("redefinition of memory region '" + Alias + "'");
427 if (!Script->MemoryRegions.count(Name))
428 setError("memory region '" + Name + "' is not defined");
429 Script->MemoryRegions.insert({Alias, Script->MemoryRegions[Name]});
430}
431
385void ScriptParser::readSearchDir() {432void ScriptParser::readSearchDir() {
386 expect("(");433 expect("(");
387 StringRef Tok = next();434 StringRef Tok = next();
...@@ -391,7 +438,7 @@ void ScriptParser::readSearchDir() {...@@ -391,7 +438,7 @@ void ScriptParser::readSearchDir() {
391}438}
392439
393void ScriptParser::readSections() {440void ScriptParser::readSections() {
394 Script->Opt.HasSections = true;441 Script->HasSectionsCommand = true;
395442
396 // -no-rosegment is used to avoid placing read only non-executable sections in443 // -no-rosegment is used to avoid placing read only non-executable sections in
397 // their own segment. We do the same if SECTIONS command is present in linker444 // their own segment. We do the same if SECTIONS command is present in linker
...@@ -399,7 +446,7 @@ void ScriptParser::readSections() {...@@ -399,7 +446,7 @@ void ScriptParser::readSections() {
399 Config->SingleRoRx = true;446 Config->SingleRoRx = true;
400447
401 expect("{");448 expect("{");
402 while (!Error && !consume("}")) {449 while (!errorCount() && !consume("}")) {
403 StringRef Tok = next();450 StringRef Tok = next();
404 BaseCommand *Cmd = readProvideOrAssignment(Tok);451 BaseCommand *Cmd = readProvideOrAssignment(Tok);
405 if (!Cmd) {452 if (!Cmd) {
...@@ -408,7 +455,7 @@ void ScriptParser::readSections() {...@@ -408,7 +455,7 @@ void ScriptParser::readSections() {
408 else455 else
409 Cmd = readOutputSectionDescription(Tok);456 Cmd = readOutputSectionDescription(Tok);
410 }457 }
411 Script->Opt.Commands.push_back(Cmd);458 Script->SectionCommands.push_back(Cmd);
412 }459 }
413}460}
414461
...@@ -424,7 +471,7 @@ static int precedence(StringRef Op) {...@@ -424,7 +471,7 @@ static int precedence(StringRef Op) {
424471
425StringMatcher ScriptParser::readFilePatterns() {472StringMatcher ScriptParser::readFilePatterns() {
426 std::vector<StringRef> V;473 std::vector<StringRef> V;
427 while (!Error && !consume(")"))474 while (!errorCount() && !consume(")"))
428 V.push_back(next());475 V.push_back(next());
429 return StringMatcher(V);476 return StringMatcher(V);
430}477}
...@@ -456,7 +503,7 @@ SortSectionPolicy ScriptParser::readSortKind() {...@@ -456,7 +503,7 @@ SortSectionPolicy ScriptParser::readSortKind() {
456// any file but a.o, and section .baz in any file but b.o.503// any file but a.o, and section .baz in any file but b.o.
457std::vector<SectionPattern> ScriptParser::readInputSectionsList() {504std::vector<SectionPattern> ScriptParser::readInputSectionsList() {
458 std::vector<SectionPattern> Ret;505 std::vector<SectionPattern> Ret;
459 while (!Error && peek() != ")") {506 while (!errorCount() && peek() != ")") {
460 StringMatcher ExcludeFilePat;507 StringMatcher ExcludeFilePat;
461 if (consume("EXCLUDE_FILE")) {508 if (consume("EXCLUDE_FILE")) {
462 expect("(");509 expect("(");
...@@ -464,7 +511,7 @@ std::vector<SectionPattern> ScriptParser::readInputSectionsList() {...@@ -464,7 +511,7 @@ std::vector<SectionPattern> ScriptParser::readInputSectionsList() {
464 }511 }
465512
466 std::vector<StringRef> V;513 std::vector<StringRef> V;
467 while (!Error && peek() != ")" && peek() != "EXCLUDE_FILE")514 while (!errorCount() && peek() != ")" && peek() != "EXCLUDE_FILE")
468 V.push_back(next());515 V.push_back(next());
469516
470 if (!V.empty())517 if (!V.empty())
...@@ -491,7 +538,7 @@ ScriptParser::readInputSectionRules(StringRef FilePattern) {...@@ -491,7 +538,7 @@ ScriptParser::readInputSectionRules(StringRef FilePattern) {
491 auto *Cmd = make<InputSectionDescription>(FilePattern);538 auto *Cmd = make<InputSectionDescription>(FilePattern);
492 expect("(");539 expect("(");
493540
494 while (!Error && !consume(")")) {541 while (!errorCount() && !consume(")")) {
495 SortSectionPolicy Outer = readSortKind();542 SortSectionPolicy Outer = readSortKind();
496 SortSectionPolicy Inner = SortSectionPolicy::Default;543 SortSectionPolicy Inner = SortSectionPolicy::Default;
497 std::vector<SectionPattern> V;544 std::vector<SectionPattern> V;
...@@ -529,7 +576,7 @@ ScriptParser::readInputSectionDescription(StringRef Tok) {...@@ -529,7 +576,7 @@ ScriptParser::readInputSectionDescription(StringRef Tok) {
529 StringRef FilePattern = next();576 StringRef FilePattern = next();
530 InputSectionDescription *Cmd = readInputSectionRules(FilePattern);577 InputSectionDescription *Cmd = readInputSectionRules(FilePattern);
531 expect(")");578 expect(")");
532 Script->Opt.KeptSections.push_back(Cmd);579 Script->KeptSections.push_back(Cmd);
533 return Cmd;580 return Cmd;
534 }581 }
535 return readInputSectionRules(Tok);582 return readInputSectionRules(Tok);
...@@ -579,7 +626,7 @@ uint32_t ScriptParser::readFill() {...@@ -579,7 +626,7 @@ uint32_t ScriptParser::readFill() {
579//626//
580// https://sourceware.org/binutils/docs/ld/Output-Section-Address.html627// https://sourceware.org/binutils/docs/ld/Output-Section-Address.html
581// https://sourceware.org/binutils/docs/ld/Output-Section-Type.html628// https://sourceware.org/binutils/docs/ld/Output-Section-Type.html
582void ScriptParser::readSectionAddressType(OutputSectionCommand *Cmd) {629void ScriptParser::readSectionAddressType(OutputSection *Cmd) {
583 if (consume("(")) {630 if (consume("(")) {
584 if (consume("NOLOAD")) {631 if (consume("NOLOAD")) {
585 expect(")");632 expect(")");
...@@ -599,21 +646,32 @@ void ScriptParser::readSectionAddressType(OutputSectionCommand *Cmd) {...@@ -599,21 +646,32 @@ void ScriptParser::readSectionAddressType(OutputSectionCommand *Cmd) {
599 }646 }
600}647}
601648
602OutputSectionCommand *649static Expr checkAlignment(Expr E, std::string &Loc) {
603ScriptParser::readOutputSectionDescription(StringRef OutSec) {650 return [=] {
604 OutputSectionCommand *Cmd =651 uint64_t Alignment = std::max((uint64_t)1, E().getValue());
605 Script->createOutputSectionCommand(OutSec, getCurrentLocation());652 if (!isPowerOf2_64(Alignment)) {
653 error(Loc + ": alignment must be power of 2");
654 return (uint64_t)1; // Return a dummy value.
655 }
656 return Alignment;
657 };
658}
659
660OutputSection *ScriptParser::readOutputSectionDescription(StringRef OutSec) {
661 OutputSection *Cmd =
662 Script->createOutputSection(OutSec, getCurrentLocation());
606663
607 if (peek() != ":")664 if (peek() != ":")
608 readSectionAddressType(Cmd);665 readSectionAddressType(Cmd);
609 expect(":");666 expect(":");
610667
668 std::string Location = getCurrentLocation();
611 if (consume("AT"))669 if (consume("AT"))
612 Cmd->LMAExpr = readParenExpr();670 Cmd->LMAExpr = readParenExpr();
613 if (consume("ALIGN"))671 if (consume("ALIGN"))
614 Cmd->AlignExpr = readParenExpr();672 Cmd->AlignExpr = checkAlignment(readParenExpr(), Location);
615 if (consume("SUBALIGN"))673 if (consume("SUBALIGN"))
616 Cmd->SubalignExpr = readParenExpr();674 Cmd->SubalignExpr = checkAlignment(readParenExpr(), Location);
617675
618 // Parse constraints.676 // Parse constraints.
619 if (consume("ONLY_IF_RO"))677 if (consume("ONLY_IF_RO"))
...@@ -622,16 +680,16 @@ ScriptParser::readOutputSectionDescription(StringRef OutSec) {...@@ -622,16 +680,16 @@ ScriptParser::readOutputSectionDescription(StringRef OutSec) {
622 Cmd->Constraint = ConstraintKind::ReadWrite;680 Cmd->Constraint = ConstraintKind::ReadWrite;
623 expect("{");681 expect("{");
624682
625 while (!Error && !consume("}")) {683 while (!errorCount() && !consume("}")) {
626 StringRef Tok = next();684 StringRef Tok = next();
627 if (Tok == ";") {685 if (Tok == ";") {
628 // Empty commands are allowed. Do nothing here.686 // Empty commands are allowed. Do nothing here.
629 } else if (SymbolAssignment *Assign = readProvideOrAssignment(Tok)) {687 } else if (SymbolAssignment *Assign = readProvideOrAssignment(Tok)) {
630 Cmd->Commands.push_back(Assign);688 Cmd->SectionCommands.push_back(Assign);
631 } else if (BytesDataCommand *Data = readBytesDataCommand(Tok)) {689 } else if (ByteCommand *Data = readByteCommand(Tok)) {
632 Cmd->Commands.push_back(Data);690 Cmd->SectionCommands.push_back(Data);
633 } else if (Tok == "ASSERT") {691 } else if (Tok == "ASSERT") {
634 Cmd->Commands.push_back(readAssert());692 Cmd->SectionCommands.push_back(readAssert());
635 expect(";");693 expect(";");
636 } else if (Tok == "CONSTRUCTORS") {694 } else if (Tok == "CONSTRUCTORS") {
637 // CONSTRUCTORS is a keyword to make the linker recognize C++ ctors/dtors695 // CONSTRUCTORS is a keyword to make the linker recognize C++ ctors/dtors
...@@ -642,7 +700,7 @@ ScriptParser::readOutputSectionDescription(StringRef OutSec) {...@@ -642,7 +700,7 @@ ScriptParser::readOutputSectionDescription(StringRef OutSec) {
642 } else if (Tok == "SORT") {700 } else if (Tok == "SORT") {
643 readSort();701 readSort();
644 } else if (peek() == "(") {702 } else if (peek() == "(") {
645 Cmd->Commands.push_back(readInputSectionDescription(Tok));703 Cmd->SectionCommands.push_back(readInputSectionDescription(Tok));
646 } else {704 } else {
647 setError("unknown command " + Tok);705 setError("unknown command " + Tok);
648 }706 }
...@@ -712,7 +770,7 @@ SymbolAssignment *ScriptParser::readAssignment(StringRef Name) {...@@ -712,7 +770,7 @@ SymbolAssignment *ScriptParser::readAssignment(StringRef Name) {
712 Expr E = readExpr();770 Expr E = readExpr();
713 if (Op == "+=") {771 if (Op == "+=") {
714 std::string Loc = getCurrentLocation();772 std::string Loc = getCurrentLocation();
715 E = [=] { return add(Script->getSymbolValue(Loc, Name), E()); };773 E = [=] { return add(Script->getSymbolValue(Name, Loc), E()); };
716 }774 }
717 return make<SymbolAssignment>(Name, E, getCurrentLocation());775 return make<SymbolAssignment>(Name, E, getCurrentLocation());
718}776}
...@@ -764,7 +822,7 @@ static Expr combine(StringRef Op, Expr L, Expr R) {...@@ -764,7 +822,7 @@ static Expr combine(StringRef Op, Expr L, Expr R) {
764// This is a part of the operator-precedence parser. This function822// This is a part of the operator-precedence parser. This function
765// assumes that the remaining token stream starts with an operator.823// assumes that the remaining token stream starts with an operator.
766Expr ScriptParser::readExpr1(Expr Lhs, int MinPrec) {824Expr ScriptParser::readExpr1(Expr Lhs, int MinPrec) {
767 while (!atEOF() && !Error) {825 while (!atEOF() && !errorCount()) {
768 // Read an operator and an expression.826 // Read an operator and an expression.
769 if (consume("?"))827 if (consume("?"))
770 return readTernary(Lhs);828 return readTernary(Lhs);
...@@ -790,13 +848,24 @@ Expr ScriptParser::readExpr1(Expr Lhs, int MinPrec) {...@@ -790,13 +848,24 @@ Expr ScriptParser::readExpr1(Expr Lhs, int MinPrec) {
790 return Lhs;848 return Lhs;
791}849}
792850
793uint64_t static getConstant(StringRef S) {851Expr ScriptParser::getPageSize() {
852 std::string Location = getCurrentLocation();
853 return [=]() -> uint64_t {
854 if (Target)
855 return Target->PageSize;
856 error(Location + ": unable to calculate page size");
857 return 4096; // Return a dummy value.
858 };
859}
860
861Expr ScriptParser::readConstant() {
862 StringRef S = readParenLiteral();
794 if (S == "COMMONPAGESIZE")863 if (S == "COMMONPAGESIZE")
795 return Target->PageSize;864 return getPageSize();
796 if (S == "MAXPAGESIZE")865 if (S == "MAXPAGESIZE")
797 return Config->MaxPageSize;866 return [] { return Config->MaxPageSize; };
798 error("unknown constant: " + S);867 setError("unknown constant: " + S);
799 return 0;868 return {};
800}869}
801870
802// Parses Tok as an integer. It recognizes hexadecimal (prefixed with871// Parses Tok as an integer. It recognizes hexadecimal (prefixed with
...@@ -812,10 +881,16 @@ static Optional<uint64_t> parseInt(StringRef Tok) {...@@ -812,10 +881,16 @@ static Optional<uint64_t> parseInt(StringRef Tok) {
812881
813 // Hexadecimal882 // Hexadecimal
814 uint64_t Val;883 uint64_t Val;
815 if (Tok.startswith_lower("0x") && to_integer(Tok.substr(2), Val, 16))884 if (Tok.startswith_lower("0x")) {
885 if (!to_integer(Tok.substr(2), Val, 16))
886 return None;
816 return Val;887 return Val;
817 if (Tok.endswith_lower("H") && to_integer(Tok.drop_back(), Val, 16))888 }
889 if (Tok.endswith_lower("H")) {
890 if (!to_integer(Tok.drop_back(), Val, 16))
891 return None;
818 return Val;892 return Val;
893 }
819894
820 // Decimal895 // Decimal
821 if (Tok.endswith_lower("K")) {896 if (Tok.endswith_lower("K")) {
...@@ -833,7 +908,7 @@ static Optional<uint64_t> parseInt(StringRef Tok) {...@@ -833,7 +908,7 @@ static Optional<uint64_t> parseInt(StringRef Tok) {
833 return Val;908 return Val;
834}909}
835910
836BytesDataCommand *ScriptParser::readBytesDataCommand(StringRef Tok) {911ByteCommand *ScriptParser::readByteCommand(StringRef Tok) {
837 int Size = StringSwitch<int>(Tok)912 int Size = StringSwitch<int>(Tok)
838 .Case("BYTE", 1)913 .Case("BYTE", 1)
839 .Case("SHORT", 2)914 .Case("SHORT", 2)
...@@ -842,8 +917,7 @@ BytesDataCommand *ScriptParser::readBytesDataCommand(StringRef Tok) {...@@ -842,8 +917,7 @@ BytesDataCommand *ScriptParser::readBytesDataCommand(StringRef Tok) {
842 .Default(-1);917 .Default(-1);
843 if (Size == -1)918 if (Size == -1)
844 return nullptr;919 return nullptr;
845920 return make<ByteCommand>(readParenExpr(), Size);
846 return make<BytesDataCommand>(readParenExpr(), Size);
847}921}
848922
849StringRef ScriptParser::readParenLiteral() {923StringRef ScriptParser::readParenLiteral() {
...@@ -853,14 +927,9 @@ StringRef ScriptParser::readParenLiteral() {...@@ -853,14 +927,9 @@ StringRef ScriptParser::readParenLiteral() {
853 return Tok;927 return Tok;
854}928}
855929
856OutputSection *ScriptParser::checkSection(OutputSectionCommand *Cmd,930static void checkIfExists(OutputSection *Cmd, StringRef Location) {
857 StringRef Location) {
858 if (Cmd->Location.empty() && Script->ErrorOnMissingSection)931 if (Cmd->Location.empty() && Script->ErrorOnMissingSection)
859 error(Location + ": undefined section " + Cmd->Name);932 error(Location + ": undefined section " + Cmd->Name);
860 if (Cmd->Sec)
861 return Cmd->Sec;
862 static OutputSection Dummy("", 0, 0);
863 return &Dummy;
864}933}
865934
866Expr ScriptParser::readPrimary() {935Expr ScriptParser::readPrimary() {
...@@ -871,6 +940,10 @@ Expr ScriptParser::readPrimary() {...@@ -871,6 +940,10 @@ Expr ScriptParser::readPrimary() {
871 Expr E = readPrimary();940 Expr E = readPrimary();
872 return [=] { return ~E().getValue(); };941 return [=] { return ~E().getValue(); };
873 }942 }
943 if (consume("!")) {
944 Expr E = readPrimary();
945 return [=] { return !E().getValue(); };
946 }
874 if (consume("-")) {947 if (consume("-")) {
875 Expr E = readPrimary();948 Expr E = readPrimary();
876 return [=] { return -E().getValue(); };949 return [=] { return -E().getValue(); };
...@@ -891,18 +964,21 @@ Expr ScriptParser::readPrimary() {...@@ -891,18 +964,21 @@ Expr ScriptParser::readPrimary() {
891 }964 }
892 if (Tok == "ADDR") {965 if (Tok == "ADDR") {
893 StringRef Name = readParenLiteral();966 StringRef Name = readParenLiteral();
894 OutputSectionCommand *Cmd = Script->getOrCreateOutputSectionCommand(Name);967 OutputSection *Sec = Script->getOrCreateOutputSection(Name);
895 return [=]() -> ExprValue {968 return [=]() -> ExprValue {
896 return {checkSection(Cmd, Location), 0, Location};969 checkIfExists(Sec, Location);
970 return {Sec, false, 0, Location};
897 };971 };
898 }972 }
899 if (Tok == "ALIGN") {973 if (Tok == "ALIGN") {
900 expect("(");974 expect("(");
901 Expr E = readExpr();975 Expr E = readExpr();
902 if (consume(")"))976 if (consume(")")) {
977 E = checkAlignment(E, Location);
903 return [=] { return alignTo(Script->getDot(), E().getValue()); };978 return [=] { return alignTo(Script->getDot(), E().getValue()); };
979 }
904 expect(",");980 expect(",");
905 Expr E2 = readExpr();981 Expr E2 = checkAlignment(readExpr(), Location);
906 expect(")");982 expect(")");
907 return [=] {983 return [=] {
908 ExprValue V = E();984 ExprValue V = E();
...@@ -912,22 +988,25 @@ Expr ScriptParser::readPrimary() {...@@ -912,22 +988,25 @@ Expr ScriptParser::readPrimary() {
912 }988 }
913 if (Tok == "ALIGNOF") {989 if (Tok == "ALIGNOF") {
914 StringRef Name = readParenLiteral();990 StringRef Name = readParenLiteral();
915 OutputSectionCommand *Cmd = Script->getOrCreateOutputSectionCommand(Name);991 OutputSection *Cmd = Script->getOrCreateOutputSection(Name);
916 return [=] { return checkSection(Cmd, Location)->Alignment; };992 return [=] {
993 checkIfExists(Cmd, Location);
994 return Cmd->Alignment;
995 };
917 }996 }
918 if (Tok == "ASSERT")997 if (Tok == "ASSERT")
919 return readAssertExpr();998 return readAssertExpr();
920 if (Tok == "CONSTANT") {999 if (Tok == "CONSTANT")
921 StringRef Name = readParenLiteral();1000 return readConstant();
922 return [=] { return getConstant(Name); };
923 }
924 if (Tok == "DATA_SEGMENT_ALIGN") {1001 if (Tok == "DATA_SEGMENT_ALIGN") {
925 expect("(");1002 expect("(");
926 Expr E = readExpr();1003 Expr E = readExpr();
927 expect(",");1004 expect(",");
928 readExpr();1005 readExpr();
929 expect(")");1006 expect(")");
930 return [=] { return alignTo(Script->getDot(), E().getValue()); };1007 return [=] {
1008 return alignTo(Script->getDot(), std::max((uint64_t)1, E().getValue()));
1009 };
931 }1010 }
932 if (Tok == "DATA_SEGMENT_END") {1011 if (Tok == "DATA_SEGMENT_END") {
933 expect("(");1012 expect("(");
...@@ -944,28 +1023,32 @@ Expr ScriptParser::readPrimary() {...@@ -944,28 +1023,32 @@ Expr ScriptParser::readPrimary() {
944 expect(",");1023 expect(",");
945 readExpr();1024 readExpr();
946 expect(")");1025 expect(")");
947 return [] { return alignTo(Script->getDot(), Target->PageSize); };1026 Expr E = getPageSize();
1027 return [=] { return alignTo(Script->getDot(), E().getValue()); };
948 }1028 }
949 if (Tok == "DEFINED") {1029 if (Tok == "DEFINED") {
950 StringRef Name = readParenLiteral();1030 StringRef Name = readParenLiteral();
951 return [=] { return Script->isDefined(Name) ? 1 : 0; };1031 return [=] { return Symtab->find(Name) ? 1 : 0; };
952 }1032 }
953 if (Tok == "LENGTH") {1033 if (Tok == "LENGTH") {
954 StringRef Name = readParenLiteral();1034 StringRef Name = readParenLiteral();
955 if (Script->Opt.MemoryRegions.count(Name) == 0)1035 if (Script->MemoryRegions.count(Name) == 0)
956 setError("memory region not defined: " + Name);1036 setError("memory region not defined: " + Name);
957 return [=] { return Script->Opt.MemoryRegions[Name].Length; };1037 return [=] { return Script->MemoryRegions[Name]->Length; };
958 }1038 }
959 if (Tok == "LOADADDR") {1039 if (Tok == "LOADADDR") {
960 StringRef Name = readParenLiteral();1040 StringRef Name = readParenLiteral();
961 OutputSectionCommand *Cmd = Script->getOrCreateOutputSectionCommand(Name);1041 OutputSection *Cmd = Script->getOrCreateOutputSection(Name);
962 return [=] { return checkSection(Cmd, Location)->getLMA(); };1042 return [=] {
1043 checkIfExists(Cmd, Location);
1044 return Cmd->getLMA();
1045 };
963 }1046 }
964 if (Tok == "ORIGIN") {1047 if (Tok == "ORIGIN") {
965 StringRef Name = readParenLiteral();1048 StringRef Name = readParenLiteral();
966 if (Script->Opt.MemoryRegions.count(Name) == 0)1049 if (Script->MemoryRegions.count(Name) == 0)
967 setError("memory region not defined: " + Name);1050 setError("memory region not defined: " + Name);
968 return [=] { return Script->Opt.MemoryRegions[Name].Origin; };1051 return [=] { return Script->MemoryRegions[Name]->Origin; };
969 }1052 }
970 if (Tok == "SEGMENT_START") {1053 if (Tok == "SEGMENT_START") {
971 expect("(");1054 expect("(");
...@@ -977,18 +1060,18 @@ Expr ScriptParser::readPrimary() {...@@ -977,18 +1060,18 @@ Expr ScriptParser::readPrimary() {
977 }1060 }
978 if (Tok == "SIZEOF") {1061 if (Tok == "SIZEOF") {
979 StringRef Name = readParenLiteral();1062 StringRef Name = readParenLiteral();
980 OutputSectionCommand *Cmd = Script->getOrCreateOutputSectionCommand(Name);1063 OutputSection *Cmd = Script->getOrCreateOutputSection(Name);
981 // Linker script does not create an output section if its content is empty.1064 // Linker script does not create an output section if its content is empty.
982 // We want to allow SIZEOF(.foo) where .foo is a section which happened to1065 // We want to allow SIZEOF(.foo) where .foo is a section which happened to
983 // be empty.1066 // be empty.
984 return [=] { return Cmd->Sec ? Cmd->Sec->Size : 0; };1067 return [=] { return Cmd->Size; };
985 }1068 }
986 if (Tok == "SIZEOF_HEADERS")1069 if (Tok == "SIZEOF_HEADERS")
987 return [=] { return elf::getHeaderSize(); };1070 return [=] { return elf::getHeaderSize(); };
9881071
989 // Tok is the dot.1072 // Tok is the dot.
990 if (Tok == ".")1073 if (Tok == ".")
991 return [=] { return Script->getSymbolValue(Location, Tok); };1074 return [=] { return Script->getSymbolValue(Tok, Location); };
9921075
993 // Tok is a literal number.1076 // Tok is a literal number.
994 if (Optional<uint64_t> Val = parseInt(Tok))1077 if (Optional<uint64_t> Val = parseInt(Tok))
...@@ -997,8 +1080,8 @@ Expr ScriptParser::readPrimary() {...@@ -997,8 +1080,8 @@ Expr ScriptParser::readPrimary() {
997 // Tok is a symbol name.1080 // Tok is a symbol name.
998 if (!isValidCIdentifier(Tok))1081 if (!isValidCIdentifier(Tok))
999 setError("malformed number: " + Tok);1082 setError("malformed number: " + Tok);
1000 Script->Opt.ReferencedSymbols.push_back(Tok);1083 Script->ReferencedSymbols.push_back(Tok);
1001 return [=] { return Script->getSymbolValue(Location, Tok); };1084 return [=] { return Script->getSymbolValue(Tok, Location); };
1002}1085}
10031086
1004Expr ScriptParser::readTernary(Expr Cond) {1087Expr ScriptParser::readTernary(Expr Cond) {
...@@ -1017,7 +1100,7 @@ Expr ScriptParser::readParenExpr() {...@@ -1017,7 +1100,7 @@ Expr ScriptParser::readParenExpr() {
10171100
1018std::vector<StringRef> ScriptParser::readOutputSectionPhdrs() {1101std::vector<StringRef> ScriptParser::readOutputSectionPhdrs() {
1019 std::vector<StringRef> Phdrs;1102 std::vector<StringRef> Phdrs;
1020 while (!Error && peek().startswith(":")) {1103 while (!errorCount() && peek().startswith(":")) {
1021 StringRef Tok = next();1104 StringRef Tok = next();
1022 Phdrs.push_back((Tok.size() == 1) ? next() : Tok.substr(1));1105 Phdrs.push_back((Tok.size() == 1) ? next() : Tok.substr(1));
1023 }1106 }
...@@ -1120,7 +1203,7 @@ ScriptParser::readSymbols() {...@@ -1120,7 +1203,7 @@ ScriptParser::readSymbols() {
1120 std::vector<SymbolVersion> Globals;1203 std::vector<SymbolVersion> Globals;
1121 std::vector<SymbolVersion> *V = &Globals;1204 std::vector<SymbolVersion> *V = &Globals;
11221205
1123 while (!Error) {1206 while (!errorCount()) {
1124 if (consume("}"))1207 if (consume("}"))
1125 break;1208 break;
1126 if (consumeLabel("local")) {1209 if (consumeLabel("local")) {
...@@ -1154,7 +1237,7 @@ std::vector<SymbolVersion> ScriptParser::readVersionExtern() {...@@ -1154,7 +1237,7 @@ std::vector<SymbolVersion> ScriptParser::readVersionExtern() {
1154 expect("{");1237 expect("{");
11551238
1156 std::vector<SymbolVersion> Ret;1239 std::vector<SymbolVersion> Ret;
1157 while (!Error && peek() != "}") {1240 while (!errorCount() && peek() != "}") {
1158 StringRef Tok = next();1241 StringRef Tok = next();
1159 bool HasWildcard = !Tok.startswith("\"") && hasWildcard(Tok);1242 bool HasWildcard = !Tok.startswith("\"") && hasWildcard(Tok);
1160 Ret.push_back({unquote(Tok), IsCXX, HasWildcard});1243 Ret.push_back({unquote(Tok), IsCXX, HasWildcard});
...@@ -1181,7 +1264,7 @@ uint64_t ScriptParser::readMemoryAssignment(StringRef S1, StringRef S2,...@@ -1181,7 +1264,7 @@ uint64_t ScriptParser::readMemoryAssignment(StringRef S1, StringRef S2,
1181// MEMORY { name [(attr)] : ORIGIN = origin, LENGTH = len ... }1264// MEMORY { name [(attr)] : ORIGIN = origin, LENGTH = len ... }
1182void ScriptParser::readMemory() {1265void ScriptParser::readMemory() {
1183 expect("{");1266 expect("{");
1184 while (!Error && !consume("}")) {1267 while (!errorCount() && !consume("}")) {
1185 StringRef Name = next();1268 StringRef Name = next();
11861269
1187 uint32_t Flags = 0;1270 uint32_t Flags = 0;
...@@ -1196,12 +1279,12 @@ void ScriptParser::readMemory() {...@@ -1196,12 +1279,12 @@ void ScriptParser::readMemory() {
1196 expect(",");1279 expect(",");
1197 uint64_t Length = readMemoryAssignment("LENGTH", "len", "l");1280 uint64_t Length = readMemoryAssignment("LENGTH", "len", "l");
11981281
1199 // Add the memory region to the region map (if it doesn't already exist).1282 // Add the memory region to the region map.
1200 auto It = Script->Opt.MemoryRegions.find(Name);1283 if (Script->MemoryRegions.count(Name))
1201 if (It != Script->Opt.MemoryRegions.end())
1202 setError("region '" + Name + "' already defined");1284 setError("region '" + Name + "' already defined");
1203 else1285 MemoryRegion *MR = make<MemoryRegion>();
1204 Script->Opt.MemoryRegions[Name] = {Name, Origin, Length, Flags, NegFlags};1286 *MR = {Name, Origin, Length, Flags, NegFlags};
1287 Script->MemoryRegions[Name] = MR;
1205 }1288 }
1206}1289}
12071290
...@@ -1245,3 +1328,7 @@ void elf::readVersionScript(MemoryBufferRef MB) {...@@ -1245,3 +1328,7 @@ void elf::readVersionScript(MemoryBufferRef MB) {
1245void elf::readDynamicList(MemoryBufferRef MB) {1328void elf::readDynamicList(MemoryBufferRef MB) {
1246 ScriptParser(MB).readDynamicList();1329 ScriptParser(MB).readDynamicList();
1247}1330}
1331
1332void elf::readDefsym(StringRef Name, MemoryBufferRef MB) {
1333 ScriptParser(MB).readDefsym(Name);
1334}
deps/lld/ELF/ScriptParser.h+4-1
...@@ -10,7 +10,7 @@...@@ -10,7 +10,7 @@
10#ifndef LLD_ELF_SCRIPT_PARSER_H10#ifndef LLD_ELF_SCRIPT_PARSER_H
11#define LLD_ELF_SCRIPT_PARSER_H11#define LLD_ELF_SCRIPT_PARSER_H
1212
13#include "lld/Core/LLVM.h"13#include "lld/Common/LLVM.h"
14#include "llvm/Support/MemoryBuffer.h"14#include "llvm/Support/MemoryBuffer.h"
1515
16namespace lld {16namespace lld {
...@@ -25,6 +25,9 @@ void readVersionScript(MemoryBufferRef MB);...@@ -25,6 +25,9 @@ void readVersionScript(MemoryBufferRef MB);
2525
26void readDynamicList(MemoryBufferRef MB);26void readDynamicList(MemoryBufferRef MB);
2727
28// Parses the defsym expression.
29void readDefsym(StringRef Name, MemoryBufferRef MB);
30
28} // namespace elf31} // namespace elf
29} // namespace lld32} // namespace lld
3033
deps/lld/ELF/Strings.cpp+4-27
...@@ -9,7 +9,7 @@...@@ -9,7 +9,7 @@
99
10#include "Strings.h"10#include "Strings.h"
11#include "Config.h"11#include "Config.h"
12#include "Error.h"12#include "lld/Common/ErrorHandler.h"
13#include "llvm/ADT/ArrayRef.h"13#include "llvm/ADT/ArrayRef.h"
14#include "llvm/ADT/StringRef.h"14#include "llvm/ADT/StringRef.h"
15#include "llvm/ADT/Twine.h"15#include "llvm/ADT/Twine.h"
...@@ -54,32 +54,9 @@ std::vector<uint8_t> elf::parseHex(StringRef S) {...@@ -54,32 +54,9 @@ std::vector<uint8_t> elf::parseHex(StringRef S) {
54 return Hex;54 return Hex;
55}55}
5656
57static bool isAlpha(char C) {
58 return ('a' <= C && C <= 'z') || ('A' <= C && C <= 'Z') || C == '_';
59}
60
61static bool isAlnum(char C) { return isAlpha(C) || ('0' <= C && C <= '9'); }
62
63// Returns true if S is valid as a C language identifier.57// Returns true if S is valid as a C language identifier.
64bool elf::isValidCIdentifier(StringRef S) {58bool elf::isValidCIdentifier(StringRef S) {
65 return !S.empty() && isAlpha(S[0]) &&59 return !S.empty() && (isAlpha(S[0]) || S[0] == '_') &&
66 std::all_of(S.begin() + 1, S.end(), isAlnum);60 std::all_of(S.begin() + 1, S.end(),
67}61 [](char C) { return C == '_' || isAlnum(C); });
68
69// Returns the demangled C++ symbol name for Name.
70Optional<std::string> elf::demangle(StringRef Name) {
71 // itaniumDemangle can be used to demangle strings other than symbol
72 // names which do not necessarily start with "_Z". Name can be
73 // either a C or C++ symbol. Don't call itaniumDemangle if the name
74 // does not look like a C++ symbol name to avoid getting unexpected
75 // result for a C symbol that happens to match a mangled type name.
76 if (!Name.startswith("_Z"))
77 return None;
78
79 char *Buf = itaniumDemangle(Name.str().c_str(), nullptr, nullptr, nullptr);
80 if (!Buf)
81 return None;
82 std::string S(Buf);
83 free(Buf);
84 return S;
85}62}
deps/lld/ELF/Strings.h+1-5
...@@ -10,7 +10,7 @@...@@ -10,7 +10,7 @@
10#ifndef LLD_ELF_STRINGS_H10#ifndef LLD_ELF_STRINGS_H
11#define LLD_ELF_STRINGS_H11#define LLD_ELF_STRINGS_H
1212
13#include "lld/Core/LLVM.h"13#include "lld/Common/LLVM.h"
14#include "llvm/ADT/ArrayRef.h"14#include "llvm/ADT/ArrayRef.h"
15#include "llvm/ADT/BitVector.h"15#include "llvm/ADT/BitVector.h"
16#include "llvm/ADT/Optional.h"16#include "llvm/ADT/Optional.h"
...@@ -66,10 +66,6 @@ private:...@@ -66,10 +66,6 @@ private:
66 std::vector<llvm::GlobPattern> Patterns;66 std::vector<llvm::GlobPattern> Patterns;
67};67};
6868
69// Returns a demangled C++ symbol name. If Name is not a mangled
70// name, it returns Optional::None.
71llvm::Optional<std::string> demangle(StringRef Name);
72
73inline ArrayRef<uint8_t> toArrayRef(StringRef S) {69inline ArrayRef<uint8_t> toArrayRef(StringRef S) {
74 return {(const uint8_t *)S.data(), S.size()};70 return {(const uint8_t *)S.data(), S.size()};
75}71}
deps/lld/ELF/SymbolTable.cpp+339-286
...@@ -16,10 +16,12 @@...@@ -16,10 +16,12 @@
1616
17#include "SymbolTable.h"17#include "SymbolTable.h"
18#include "Config.h"18#include "Config.h"
19#include "Error.h"
20#include "LinkerScript.h"19#include "LinkerScript.h"
21#include "Memory.h"
22#include "Symbols.h"20#include "Symbols.h"
21#include "SyntheticSections.h"
22#include "lld/Common/ErrorHandler.h"
23#include "lld/Common/Memory.h"
24#include "lld/Common/Strings.h"
23#include "llvm/ADT/STLExtras.h"25#include "llvm/ADT/STLExtras.h"
2426
25using namespace llvm;27using namespace llvm;
...@@ -29,11 +31,21 @@ using namespace llvm::ELF;...@@ -29,11 +31,21 @@ using namespace llvm::ELF;
29using namespace lld;31using namespace lld;
30using namespace lld::elf;32using namespace lld::elf;
3133
34SymbolTable *elf::Symtab;
35
36static InputFile *getFirstElf() {
37 if (!ObjectFiles.empty())
38 return ObjectFiles[0];
39 if (!SharedFiles.empty())
40 return SharedFiles[0];
41 return nullptr;
42}
43
32// All input object files must be for the same architecture44// All input object files must be for the same architecture
33// (e.g. it does not make sense to link x86 object files with45// (e.g. it does not make sense to link x86 object files with
34// MIPS object files.) This function checks for that error.46// MIPS object files.) This function checks for that error.
35template <class ELFT> static bool isCompatible(InputFile *F) {47static bool isCompatible(InputFile *F) {
36 if (!isa<ELFFileBase<ELFT>>(F) && !isa<BitcodeFile>(F))48 if (!F->isElf() && !isa<BitcodeFile>(F))
37 return true;49 return true;
3850
39 if (F->EKind == Config->EKind && F->EMachine == Config->EMachine) {51 if (F->EKind == Config->EKind && F->EMachine == Config->EMachine) {
...@@ -46,22 +58,19 @@ template <class ELFT> static bool isCompatible(InputFile *F) {...@@ -46,22 +58,19 @@ template <class ELFT> static bool isCompatible(InputFile *F) {
46 if (!Config->Emulation.empty())58 if (!Config->Emulation.empty())
47 error(toString(F) + " is incompatible with " + Config->Emulation);59 error(toString(F) + " is incompatible with " + Config->Emulation);
48 else60 else
49 error(toString(F) + " is incompatible with " + toString(Config->FirstElf));61 error(toString(F) + " is incompatible with " + toString(getFirstElf()));
50 return false;62 return false;
51}63}
5264
53// Add symbols in File to the symbol table.65// Add symbols in File to the symbol table.
54template <class ELFT> void SymbolTable<ELFT>::addFile(InputFile *File) {66template <class ELFT> void SymbolTable::addFile(InputFile *File) {
55 if (!Config->FirstElf && isa<ELFFileBase<ELFT>>(File))67 if (!isCompatible(File))
56 Config->FirstElf = File;
57
58 if (!isCompatible<ELFT>(File))
59 return;68 return;
6069
61 // Binary file70 // Binary file
62 if (auto *F = dyn_cast<BinaryFile>(File)) {71 if (auto *F = dyn_cast<BinaryFile>(File)) {
63 BinaryFiles.push_back(F);72 BinaryFiles.push_back(F);
64 F->parse<ELFT>();73 F->parse();
65 return;74 return;
66 }75 }
6776
...@@ -72,7 +81,7 @@ template <class ELFT> void SymbolTable<ELFT>::addFile(InputFile *File) {...@@ -72,7 +81,7 @@ template <class ELFT> void SymbolTable<ELFT>::addFile(InputFile *File) {
72 }81 }
7382
74 // Lazy object file83 // Lazy object file
75 if (auto *F = dyn_cast<LazyObjectFile>(File)) {84 if (auto *F = dyn_cast<LazyObjFile>(File)) {
76 F->parse<ELFT>();85 F->parse<ELFT>();
77 return;86 return;
78 }87 }
...@@ -84,7 +93,7 @@ template <class ELFT> void SymbolTable<ELFT>::addFile(InputFile *File) {...@@ -84,7 +93,7 @@ template <class ELFT> void SymbolTable<ELFT>::addFile(InputFile *File) {
84 if (auto *F = dyn_cast<SharedFile<ELFT>>(File)) {93 if (auto *F = dyn_cast<SharedFile<ELFT>>(File)) {
85 // DSOs are uniquified not by filename but by soname.94 // DSOs are uniquified not by filename but by soname.
86 F->parseSoName();95 F->parseSoName();
87 if (ErrorCount || !SoNames.insert(F->SoName).second)96 if (errorCount() || !SoNames.insert(F->SoName).second)
88 return;97 return;
89 SharedFiles.push_back(F);98 SharedFiles.push_back(F);
90 F->parseRest();99 F->parseRest();
...@@ -99,9 +108,8 @@ template <class ELFT> void SymbolTable<ELFT>::addFile(InputFile *File) {...@@ -99,9 +108,8 @@ template <class ELFT> void SymbolTable<ELFT>::addFile(InputFile *File) {
99 }108 }
100109
101 // Regular object file110 // Regular object file
102 auto *F = cast<ObjectFile<ELFT>>(File);111 ObjectFiles.push_back(File);
103 ObjectFiles.push_back(F);112 cast<ObjFile<ELFT>>(File)->parse(ComdatGroups);
104 F->parse(ComdatGroups);
105}113}
106114
107// This function is where all the optimizations of link-time115// This function is where all the optimizations of link-time
...@@ -111,7 +119,7 @@ template <class ELFT> void SymbolTable<ELFT>::addFile(InputFile *File) {...@@ -111,7 +119,7 @@ template <class ELFT> void SymbolTable<ELFT>::addFile(InputFile *File) {
111// using LLVM functions and replaces bitcode symbols with the results.119// using LLVM functions and replaces bitcode symbols with the results.
112// Because all bitcode files that consist of a program are passed120// Because all bitcode files that consist of a program are passed
113// to the compiler at once, it can do whole-program optimization.121// to the compiler at once, it can do whole-program optimization.
114template <class ELFT> void SymbolTable<ELFT>::addCombinedLTOObject() {122template <class ELFT> void SymbolTable::addCombinedLTOObject() {
115 if (BitcodeFiles.empty())123 if (BitcodeFiles.empty())
116 return;124 return;
117125
...@@ -121,82 +129,76 @@ template <class ELFT> void SymbolTable<ELFT>::addCombinedLTOObject() {...@@ -121,82 +129,76 @@ template <class ELFT> void SymbolTable<ELFT>::addCombinedLTOObject() {
121 LTO->add(*F);129 LTO->add(*F);
122130
123 for (InputFile *File : LTO->compile()) {131 for (InputFile *File : LTO->compile()) {
124 ObjectFile<ELFT> *Obj = cast<ObjectFile<ELFT>>(File);
125 DenseSet<CachedHashStringRef> DummyGroups;132 DenseSet<CachedHashStringRef> DummyGroups;
126 Obj->parse(DummyGroups);133 cast<ObjFile<ELFT>>(File)->parse(DummyGroups);
127 ObjectFiles.push_back(Obj);134 ObjectFiles.push_back(File);
128 }135 }
129}136}
130137
131template <class ELFT>138Defined *SymbolTable::addAbsolute(StringRef Name, uint8_t Visibility,
132DefinedRegular *SymbolTable<ELFT>::addAbsolute(StringRef Name,139 uint8_t Binding) {
133 uint8_t Visibility,
134 uint8_t Binding) {
135 Symbol *Sym =140 Symbol *Sym =
136 addRegular(Name, Visibility, STT_NOTYPE, 0, 0, Binding, nullptr, nullptr);141 addRegular(Name, Visibility, STT_NOTYPE, 0, 0, Binding, nullptr, nullptr);
137 return cast<DefinedRegular>(Sym->body());142 return cast<Defined>(Sym);
138}
139
140// Add Name as an "ignored" symbol. An ignored symbol is a regular
141// linker-synthesized defined symbol, but is only defined if needed.
142template <class ELFT>
143DefinedRegular *SymbolTable<ELFT>::addIgnored(StringRef Name,
144 uint8_t Visibility) {
145 SymbolBody *S = find(Name);
146 if (!S || S->isInCurrentDSO())
147 return nullptr;
148 return addAbsolute(Name, Visibility);
149}143}
150144
151// Set a flag for --trace-symbol so that we can print out a log message145// Set a flag for --trace-symbol so that we can print out a log message
152// if a new symbol with the same name is inserted into the symbol table.146// if a new symbol with the same name is inserted into the symbol table.
153template <class ELFT> void SymbolTable<ELFT>::trace(StringRef Name) {147void SymbolTable::trace(StringRef Name) {
154 Symtab.insert({CachedHashStringRef(Name), {-1, true}});148 SymMap.insert({CachedHashStringRef(Name), -1});
155}149}
156150
157// Rename SYM as __wrap_SYM. The original symbol is preserved as __real_SYM.151// Rename SYM as __wrap_SYM. The original symbol is preserved as __real_SYM.
158// Used to implement --wrap.152// Used to implement --wrap.
159template <class ELFT> void SymbolTable<ELFT>::addSymbolWrap(StringRef Name) {153template <class ELFT> void SymbolTable::addSymbolWrap(StringRef Name) {
160 SymbolBody *B = find(Name);154 Symbol *Sym = find(Name);
161 if (!B)155 if (!Sym)
162 return;156 return;
163 Symbol *Sym = B->symbol();157 Symbol *Real = addUndefined<ELFT>(Saver.save("__real_" + Name));
164 Symbol *Real = addUndefined(Saver.save("__real_" + Name));158 Symbol *Wrap = addUndefined<ELFT>(Saver.save("__wrap_" + Name));
165 Symbol *Wrap = addUndefined(Saver.save("__wrap_" + Name));159 WrappedSymbols.push_back({Sym, Real, Wrap});
166160
167 // Tell LTO not to eliminate this symbol161 // We want to tell LTO not to inline symbols to be overwritten
168 Wrap->IsUsedInRegularObj = true;162 // because LTO doesn't know the final symbol contents after renaming.
169163 Real->CanInline = false;
170 Config->RenamedSymbols[Real] = {Sym, Real->Binding};164 Sym->CanInline = false;
171 Config->RenamedSymbols[Sym] = {Wrap, Sym->Binding};
172}
173
174// Creates alias for symbol. Used to implement --defsym=ALIAS=SYM.
175template <class ELFT>
176void SymbolTable<ELFT>::addSymbolAlias(StringRef Alias, StringRef Name) {
177 SymbolBody *B = find(Name);
178 if (!B) {
179 error("-defsym: undefined symbol: " + Name);
180 return;
181 }
182 Symbol *Sym = B->symbol();
183 Symbol *AliasSym = addUndefined(Alias);
184165
185 // Tell LTO not to eliminate this symbol166 // Tell LTO not to eliminate these symbols.
186 Sym->IsUsedInRegularObj = true;167 Sym->IsUsedInRegularObj = true;
187 Config->RenamedSymbols[AliasSym] = {Sym, AliasSym->Binding};168 Wrap->IsUsedInRegularObj = true;
188}169}
189170
190// Apply symbol renames created by -wrap and -defsym. The renames are created171// Apply symbol renames created by -wrap. The renames are created
191// before LTO in addSymbolWrap() and addSymbolAlias() to have a chance to inform172// before LTO in addSymbolWrap() to have a chance to inform LTO (if
192// LTO (if LTO is running) not to include these symbols in IPO. Now that the173// LTO is running) not to include these symbols in IPO. Now that the
193// symbols are finalized, we can perform the replacement.174// symbols are finalized, we can perform the replacement.
194template <class ELFT> void SymbolTable<ELFT>::applySymbolRenames() {175void SymbolTable::applySymbolWrap() {
195 for (auto &KV : Config->RenamedSymbols) {176 // This function rotates 3 symbols:
196 Symbol *Dst = KV.first;177 //
197 Symbol *Src = KV.second.Target;178 // __real_sym becomes sym
198 Dst->body()->copy(Src->body());179 // sym becomes __wrap_sym
199 Dst->Binding = KV.second.OriginalBinding;180 // __wrap_sym becomes __real_sym
181 //
182 // The last part is special in that we don't want to change what references to
183 // __wrap_sym point to, we just want have __real_sym in the symbol table.
184
185 for (WrappedSymbol &W : WrappedSymbols) {
186 // First, make a copy of __real_sym.
187 Symbol *Real = nullptr;
188 if (W.Real->isDefined()) {
189 Real = (Symbol *)make<SymbolUnion>();
190 memcpy(Real, W.Real, sizeof(SymbolUnion));
191 }
192
193 // Replace __real_sym with sym and sym with __wrap_sym.
194 memcpy(W.Real, W.Sym, sizeof(SymbolUnion));
195 memcpy(W.Sym, W.Wrap, sizeof(SymbolUnion));
196
197 // We now have two copies of __wrap_sym. Drop one.
198 W.Wrap->IsUsedInRegularObj = false;
199
200 if (Real)
201 SymVector.push_back(Real);
200 }202 }
201}203}
202204
...@@ -209,48 +211,50 @@ static uint8_t getMinVisibility(uint8_t VA, uint8_t VB) {...@@ -209,48 +211,50 @@ static uint8_t getMinVisibility(uint8_t VA, uint8_t VB) {
209}211}
210212
211// Find an existing symbol or create and insert a new one.213// Find an existing symbol or create and insert a new one.
212template <class ELFT>214std::pair<Symbol *, bool> SymbolTable::insert(StringRef Name) {
213std::pair<Symbol *, bool> SymbolTable<ELFT>::insert(StringRef Name) {
214 // <name>@@<version> means the symbol is the default version. In that215 // <name>@@<version> means the symbol is the default version. In that
215 // case <name>@@<version> will be used to resolve references to <name>.216 // case <name>@@<version> will be used to resolve references to <name>.
216 size_t Pos = Name.find("@@");217 //
217 if (Pos != StringRef::npos)218 // Since this is a hot path, the following string search code is
219 // optimized for speed. StringRef::find(char) is much faster than
220 // StringRef::find(StringRef).
221 size_t Pos = Name.find('@');
222 if (Pos != StringRef::npos && Pos + 1 < Name.size() && Name[Pos + 1] == '@')
218 Name = Name.take_front(Pos);223 Name = Name.take_front(Pos);
219224
220 auto P = Symtab.insert(225 auto P = SymMap.insert({CachedHashStringRef(Name), (int)SymVector.size()});
221 {CachedHashStringRef(Name), SymIndex((int)SymVector.size(), false)});226 int &SymIndex = P.first->second;
222 SymIndex &V = P.first->second;
223 bool IsNew = P.second;227 bool IsNew = P.second;
228 bool Traced = false;
224229
225 if (V.Idx == -1) {230 if (SymIndex == -1) {
226 IsNew = true;231 SymIndex = SymVector.size();
227 V = SymIndex((int)SymVector.size(), true);232 IsNew = Traced = true;
228 }233 }
229234
230 Symbol *Sym;235 Symbol *Sym;
231 if (IsNew) {236 if (IsNew) {
232 Sym = make<Symbol>();237 Sym = (Symbol *)make<SymbolUnion>();
233 Sym->InVersionScript = false;238 Sym->InVersionScript = false;
234 Sym->Binding = STB_WEAK;
235 Sym->Visibility = STV_DEFAULT;239 Sym->Visibility = STV_DEFAULT;
236 Sym->IsUsedInRegularObj = false;240 Sym->IsUsedInRegularObj = false;
237 Sym->ExportDynamic = false;241 Sym->ExportDynamic = false;
238 Sym->Traced = V.Traced;242 Sym->CanInline = true;
243 Sym->Traced = Traced;
239 Sym->VersionId = Config->DefaultSymbolVersion;244 Sym->VersionId = Config->DefaultSymbolVersion;
240 SymVector.push_back(Sym);245 SymVector.push_back(Sym);
241 } else {246 } else {
242 Sym = SymVector[V.Idx];247 Sym = SymVector[SymIndex];
243 }248 }
244 return {Sym, IsNew};249 return {Sym, IsNew};
245}250}
246251
247// Find an existing symbol or create and insert a new one, then apply the given252// Find an existing symbol or create and insert a new one, then apply the given
248// attributes.253// attributes.
249template <class ELFT>254std::pair<Symbol *, bool> SymbolTable::insert(StringRef Name, uint8_t Type,
250std::pair<Symbol *, bool>255 uint8_t Visibility,
251SymbolTable<ELFT>::insert(StringRef Name, uint8_t Type, uint8_t Visibility,256 bool CanOmitFromDynSym,
252 bool CanOmitFromDynSym, InputFile *File) {257 InputFile *File) {
253 bool IsUsedInRegularObj = !File || File->kind() == InputFile::ObjectKind;
254 Symbol *S;258 Symbol *S;
255 bool WasInserted;259 bool WasInserted;
256 std::tie(S, WasInserted) = insert(Name);260 std::tie(S, WasInserted) = insert(Name);
...@@ -261,32 +265,30 @@ SymbolTable<ELFT>::insert(StringRef Name, uint8_t Type, uint8_t Visibility,...@@ -261,32 +265,30 @@ SymbolTable<ELFT>::insert(StringRef Name, uint8_t Type, uint8_t Visibility,
261 if (!CanOmitFromDynSym && (Config->Shared || Config->ExportDynamic))265 if (!CanOmitFromDynSym && (Config->Shared || Config->ExportDynamic))
262 S->ExportDynamic = true;266 S->ExportDynamic = true;
263267
264 if (IsUsedInRegularObj)268 if (!File || File->kind() == InputFile::ObjKind)
265 S->IsUsedInRegularObj = true;269 S->IsUsedInRegularObj = true;
266270
267 if (!WasInserted && S->body()->Type != SymbolBody::UnknownType &&271 if (!WasInserted && S->Type != Symbol::UnknownType &&
268 ((Type == STT_TLS) != S->body()->isTls())) {272 ((Type == STT_TLS) != S->isTls())) {
269 error("TLS attribute mismatch: " + toString(*S->body()) +273 error("TLS attribute mismatch: " + toString(*S) + "\n>>> defined in " +
270 "\n>>> defined in " + toString(S->body()->File) +274 toString(S->File) + "\n>>> defined in " + toString(File));
271 "\n>>> defined in " + toString(File));
272 }275 }
273276
274 return {S, WasInserted};277 return {S, WasInserted};
275}278}
276279
277template <class ELFT> Symbol *SymbolTable<ELFT>::addUndefined(StringRef Name) {280template <class ELFT> Symbol *SymbolTable::addUndefined(StringRef Name) {
278 return addUndefined(Name, /*IsLocal=*/false, STB_GLOBAL, STV_DEFAULT,281 return addUndefined<ELFT>(Name, STB_GLOBAL, STV_DEFAULT,
279 /*Type*/ 0,282 /*Type*/ 0,
280 /*CanOmitFromDynSym*/ false, /*File*/ nullptr);283 /*CanOmitFromDynSym*/ false, /*File*/ nullptr);
281}284}
282285
283static uint8_t getVisibility(uint8_t StOther) { return StOther & 3; }286static uint8_t getVisibility(uint8_t StOther) { return StOther & 3; }
284287
285template <class ELFT>288template <class ELFT>
286Symbol *SymbolTable<ELFT>::addUndefined(StringRef Name, bool IsLocal,289Symbol *SymbolTable::addUndefined(StringRef Name, uint8_t Binding,
287 uint8_t Binding, uint8_t StOther,290 uint8_t StOther, uint8_t Type,
288 uint8_t Type, bool CanOmitFromDynSym,291 bool CanOmitFromDynSym, InputFile *File) {
289 InputFile *File) {
290 Symbol *S;292 Symbol *S;
291 bool WasInserted;293 bool WasInserted;
292 uint8_t Visibility = getVisibility(StOther);294 uint8_t Visibility = getVisibility(StOther);
...@@ -294,26 +296,24 @@ Symbol *SymbolTable<ELFT>::addUndefined(StringRef Name, bool IsLocal,...@@ -294,26 +296,24 @@ Symbol *SymbolTable<ELFT>::addUndefined(StringRef Name, bool IsLocal,
294 insert(Name, Type, Visibility, CanOmitFromDynSym, File);296 insert(Name, Type, Visibility, CanOmitFromDynSym, File);
295 // An undefined symbol with non default visibility must be satisfied297 // An undefined symbol with non default visibility must be satisfied
296 // in the same DSO.298 // in the same DSO.
297 if (WasInserted ||299 if (WasInserted || (isa<SharedSymbol>(S) && Visibility != STV_DEFAULT)) {
298 (isa<SharedSymbol>(S->body()) && Visibility != STV_DEFAULT)) {300 replaceSymbol<Undefined>(S, File, Name, Binding, StOther, Type);
299 S->Binding = Binding;
300 replaceBody<Undefined>(S, Name, IsLocal, StOther, Type, File);
301 return S;301 return S;
302 }302 }
303 if (S->isShared() || S->isLazy() || (S->isUndefined() && Binding != STB_WEAK))
304 S->Binding = Binding;
303 if (Binding != STB_WEAK) {305 if (Binding != STB_WEAK) {
304 SymbolBody *B = S->body();306 if (auto *SS = dyn_cast<SharedSymbol>(S))
305 if (B->isShared() || B->isLazy() || B->isUndefined())307 if (!Config->GcSections)
306 S->Binding = Binding;308 SS->getFile<ELFT>().IsNeeded = true;
307 if (auto *SS = dyn_cast<SharedSymbol>(B))
308 cast<SharedFile<ELFT>>(SS->File)->IsUsed = true;
309 }309 }
310 if (auto *L = dyn_cast<Lazy>(S->body())) {310 if (auto *L = dyn_cast<Lazy>(S)) {
311 // An undefined weak will not fetch archive members, but we have to remember311 // An undefined weak will not fetch archive members. See comment on Lazy in
312 // its type. See also comment in addLazyArchive.312 // Symbols.h for the details.
313 if (S->isWeak())313 if (Binding == STB_WEAK)
314 L->Type = Type;314 L->Type = Type;
315 else if (InputFile *F = L->fetch())315 else if (InputFile *F = L->fetch())
316 addFile(F);316 addFile<ELFT>(F);
317 }317 }
318 return S;318 return S;
319}319}
...@@ -325,11 +325,11 @@ Symbol *SymbolTable<ELFT>::addUndefined(StringRef Name, bool IsLocal,...@@ -325,11 +325,11 @@ Symbol *SymbolTable<ELFT>::addUndefined(StringRef Name, bool IsLocal,
325// .symver foo,foo@@@VER325// .symver foo,foo@@@VER
326// we can delete this hack.326// we can delete this hack.
327static int compareVersion(Symbol *S, StringRef Name) {327static int compareVersion(Symbol *S, StringRef Name) {
328 if (Name.find("@@") != StringRef::npos &&328 bool A = Name.contains("@@");
329 S->body()->getName().find("@@") == StringRef::npos)329 bool B = S->getName().contains("@@");
330 if (A && !B)
330 return 1;331 return 1;
331 if (Name.find("@@") == StringRef::npos &&332 if (!A && B)
332 S->body()->getName().find("@@") != StringRef::npos)
333 return -1;333 return -1;
334 return 0;334 return 0;
335}335}
...@@ -341,13 +341,10 @@ static int compareDefined(Symbol *S, bool WasInserted, uint8_t Binding,...@@ -341,13 +341,10 @@ static int compareDefined(Symbol *S, bool WasInserted, uint8_t Binding,
341 StringRef Name) {341 StringRef Name) {
342 if (WasInserted)342 if (WasInserted)
343 return 1;343 return 1;
344 SymbolBody *Body = S->body();344 if (!S->isDefined())
345 if (!Body->isInCurrentDSO())
346 return 1;345 return 1;
347
348 if (int R = compareVersion(S, Name))346 if (int R = compareVersion(S, Name))
349 return R;347 return R;
350
351 if (Binding == STB_WEAK)348 if (Binding == STB_WEAK)
352 return -1;349 return -1;
353 if (S->isWeak())350 if (S->isWeak())
...@@ -358,22 +355,18 @@ static int compareDefined(Symbol *S, bool WasInserted, uint8_t Binding,...@@ -358,22 +355,18 @@ static int compareDefined(Symbol *S, bool WasInserted, uint8_t Binding,
358// We have a new non-common defined symbol with the specified binding. Return 1355// We have a new non-common defined symbol with the specified binding. Return 1
359// if the new symbol should win, -1 if the new symbol should lose, or 0 if there356// if the new symbol should win, -1 if the new symbol should lose, or 0 if there
360// is a conflict. If the new symbol wins, also update the binding.357// is a conflict. If the new symbol wins, also update the binding.
361template <typename ELFT>
362static int compareDefinedNonCommon(Symbol *S, bool WasInserted, uint8_t Binding,358static int compareDefinedNonCommon(Symbol *S, bool WasInserted, uint8_t Binding,
363 bool IsAbsolute, typename ELFT::uint Value,359 bool IsAbsolute, uint64_t Value,
364 StringRef Name) {360 StringRef Name) {
365 if (int Cmp = compareDefined(S, WasInserted, Binding, Name)) {361 if (int Cmp = compareDefined(S, WasInserted, Binding, Name))
366 if (Cmp > 0)
367 S->Binding = Binding;
368 return Cmp;362 return Cmp;
369 }363 if (auto *R = dyn_cast<Defined>(S)) {
370 SymbolBody *B = S->body();364 if (R->Section && isa<BssSection>(R->Section)) {
371 if (isa<DefinedCommon>(B)) {365 // Non-common symbols take precedence over common symbols.
372 // Non-common symbols take precedence over common symbols.366 if (Config->WarnCommon)
373 if (Config->WarnCommon)367 warn("common " + S->getName() + " is overridden");
374 warn("common " + S->body()->getName() + " is overridden");368 return 1;
375 return 1;369 }
376 } else if (auto *R = dyn_cast<DefinedRegular>(B)) {
377 if (R->Section == nullptr && Binding == STB_GLOBAL && IsAbsolute &&370 if (R->Section == nullptr && Binding == STB_GLOBAL && IsAbsolute &&
378 R->Value == Value)371 R->Value == Value)
379 return -1;372 return -1;
...@@ -381,34 +374,39 @@ static int compareDefinedNonCommon(Symbol *S, bool WasInserted, uint8_t Binding,...@@ -381,34 +374,39 @@ static int compareDefinedNonCommon(Symbol *S, bool WasInserted, uint8_t Binding,
381 return 0;374 return 0;
382}375}
383376
384template <class ELFT>377Symbol *SymbolTable::addCommon(StringRef N, uint64_t Size, uint32_t Alignment,
385Symbol *SymbolTable<ELFT>::addCommon(StringRef N, uint64_t Size,378 uint8_t Binding, uint8_t StOther, uint8_t Type,
386 uint32_t Alignment, uint8_t Binding,379 InputFile &File) {
387 uint8_t StOther, uint8_t Type,
388 InputFile *File) {
389 Symbol *S;380 Symbol *S;
390 bool WasInserted;381 bool WasInserted;
391 std::tie(S, WasInserted) = insert(N, Type, getVisibility(StOther),382 std::tie(S, WasInserted) = insert(N, Type, getVisibility(StOther),
392 /*CanOmitFromDynSym*/ false, File);383 /*CanOmitFromDynSym*/ false, &File);
393 int Cmp = compareDefined(S, WasInserted, Binding, N);384 int Cmp = compareDefined(S, WasInserted, Binding, N);
394 if (Cmp > 0) {385 if (Cmp > 0) {
395 S->Binding = Binding;386 auto *Bss = make<BssSection>("COMMON", Size, Alignment);
396 replaceBody<DefinedCommon>(S, N, Size, Alignment, StOther, Type, File);387 Bss->File = &File;
388 Bss->Live = !Config->GcSections;
389 InputSections.push_back(Bss);
390
391 replaceSymbol<Defined>(S, &File, N, Binding, StOther, Type, 0, Size, Bss);
397 } else if (Cmp == 0) {392 } else if (Cmp == 0) {
398 auto *C = dyn_cast<DefinedCommon>(S->body());393 auto *D = cast<Defined>(S);
399 if (!C) {394 auto *Bss = dyn_cast_or_null<BssSection>(D->Section);
395 if (!Bss) {
400 // Non-common symbols take precedence over common symbols.396 // Non-common symbols take precedence over common symbols.
401 if (Config->WarnCommon)397 if (Config->WarnCommon)
402 warn("common " + S->body()->getName() + " is overridden");398 warn("common " + S->getName() + " is overridden");
403 return S;399 return S;
404 }400 }
405401
406 if (Config->WarnCommon)402 if (Config->WarnCommon)
407 warn("multiple common of " + S->body()->getName());403 warn("multiple common of " + D->getName());
408404
409 Alignment = C->Alignment = std::max(C->Alignment, Alignment);405 Bss->Alignment = std::max(Bss->Alignment, Alignment);
410 if (Size > C->Size)406 if (Size > Bss->Size) {
411 replaceBody<DefinedCommon>(S, N, Size, Alignment, StOther, Type, File);407 D->File = Bss->File = &File;
408 D->Size = Bss->Size = Size;
409 }
412 }410 }
413 return S;411 return S;
414}412}
...@@ -420,17 +418,16 @@ static void warnOrError(const Twine &Msg) {...@@ -420,17 +418,16 @@ static void warnOrError(const Twine &Msg) {
420 error(Msg);418 error(Msg);
421}419}
422420
423static void reportDuplicate(SymbolBody *Sym, InputFile *NewFile) {421static void reportDuplicate(Symbol *Sym, InputFile *NewFile) {
424 warnOrError("duplicate symbol: " + toString(*Sym) + "\n>>> defined in " +422 warnOrError("duplicate symbol: " + toString(*Sym) + "\n>>> defined in " +
425 toString(Sym->File) + "\n>>> defined in " + toString(NewFile));423 toString(Sym->File) + "\n>>> defined in " + toString(NewFile));
426}424}
427425
428template <class ELFT>426static void reportDuplicate(Symbol *Sym, InputSectionBase *ErrSec,
429static void reportDuplicate(SymbolBody *Sym, InputSectionBase *ErrSec,427 uint64_t ErrOffset) {
430 typename ELFT::uint ErrOffset) {428 Defined *D = cast<Defined>(Sym);
431 DefinedRegular *D = dyn_cast<DefinedRegular>(Sym);429 if (!D->Section || !ErrSec) {
432 if (!D || !D->Section || !ErrSec) {430 reportDuplicate(Sym, ErrSec ? ErrSec->File : nullptr);
433 reportDuplicate(Sym, ErrSec ? ErrSec->getFile<ELFT>() : nullptr);
434 return;431 return;
435 }432 }
436433
...@@ -442,10 +439,10 @@ static void reportDuplicate(SymbolBody *Sym, InputSectionBase *ErrSec,...@@ -442,10 +439,10 @@ static void reportDuplicate(SymbolBody *Sym, InputSectionBase *ErrSec,
442 // >>> defined at baz.c:563439 // >>> defined at baz.c:563
443 // >>> baz.o in archive libbaz.a440 // >>> baz.o in archive libbaz.a
444 auto *Sec1 = cast<InputSectionBase>(D->Section);441 auto *Sec1 = cast<InputSectionBase>(D->Section);
445 std::string Src1 = Sec1->getSrcMsg<ELFT>(D->Value);442 std::string Src1 = Sec1->getSrcMsg(*Sym, D->Value);
446 std::string Obj1 = Sec1->getObjMsg<ELFT>(D->Value);443 std::string Obj1 = Sec1->getObjMsg(D->Value);
447 std::string Src2 = ErrSec->getSrcMsg<ELFT>(ErrOffset);444 std::string Src2 = ErrSec->getSrcMsg(*Sym, ErrOffset);
448 std::string Obj2 = ErrSec->getObjMsg<ELFT>(ErrOffset);445 std::string Obj2 = ErrSec->getObjMsg(ErrOffset);
449446
450 std::string Msg = "duplicate symbol: " + toString(*Sym) + "\n>>> defined at ";447 std::string Msg = "duplicate symbol: " + toString(*Sym) + "\n>>> defined at ";
451 if (!Src1.empty())448 if (!Src1.empty())
...@@ -457,145 +454,134 @@ static void reportDuplicate(SymbolBody *Sym, InputSectionBase *ErrSec,...@@ -457,145 +454,134 @@ static void reportDuplicate(SymbolBody *Sym, InputSectionBase *ErrSec,
457 warnOrError(Msg);454 warnOrError(Msg);
458}455}
459456
460template <typename ELFT>457Symbol *SymbolTable::addRegular(StringRef Name, uint8_t StOther, uint8_t Type,
461Symbol *SymbolTable<ELFT>::addRegular(StringRef Name, uint8_t StOther,458 uint64_t Value, uint64_t Size, uint8_t Binding,
462 uint8_t Type, uint64_t Value,459 SectionBase *Section, InputFile *File) {
463 uint64_t Size, uint8_t Binding,
464 SectionBase *Section, InputFile *File) {
465 Symbol *S;460 Symbol *S;
466 bool WasInserted;461 bool WasInserted;
467 std::tie(S, WasInserted) = insert(Name, Type, getVisibility(StOther),462 std::tie(S, WasInserted) = insert(Name, Type, getVisibility(StOther),
468 /*CanOmitFromDynSym*/ false, File);463 /*CanOmitFromDynSym*/ false, File);
469 int Cmp = compareDefinedNonCommon<ELFT>(S, WasInserted, Binding,464 int Cmp = compareDefinedNonCommon(S, WasInserted, Binding, Section == nullptr,
470 Section == nullptr, Value, Name);465 Value, Name);
471 if (Cmp > 0)466 if (Cmp > 0)
472 replaceBody<DefinedRegular>(S, Name, /*IsLocal=*/false, StOther, Type,467 replaceSymbol<Defined>(S, File, Name, Binding, StOther, Type, Value, Size,
473 Value, Size, Section, File);468 Section);
474 else if (Cmp == 0)469 else if (Cmp == 0)
475 reportDuplicate<ELFT>(S->body(),470 reportDuplicate(S, dyn_cast_or_null<InputSectionBase>(Section), Value);
476 dyn_cast_or_null<InputSectionBase>(Section), Value);
477 return S;471 return S;
478}472}
479473
480template <typename ELFT>474template <typename ELFT>
481void SymbolTable<ELFT>::addShared(SharedFile<ELFT> *File, StringRef Name,475void SymbolTable::addShared(StringRef Name, SharedFile<ELFT> &File,
482 const Elf_Sym &Sym,476 const typename ELFT::Sym &Sym, uint32_t Alignment,
483 const typename ELFT::Verdef *Verdef) {477 uint32_t VerdefIndex) {
484 // DSO symbols do not affect visibility in the output, so we pass STV_DEFAULT478 // DSO symbols do not affect visibility in the output, so we pass STV_DEFAULT
485 // as the visibility, which will leave the visibility in the symbol table479 // as the visibility, which will leave the visibility in the symbol table
486 // unchanged.480 // unchanged.
487 Symbol *S;481 Symbol *S;
488 bool WasInserted;482 bool WasInserted;
489 std::tie(S, WasInserted) = insert(Name, Sym.getType(), STV_DEFAULT,483 std::tie(S, WasInserted) = insert(Name, Sym.getType(), STV_DEFAULT,
490 /*CanOmitFromDynSym*/ true, File);484 /*CanOmitFromDynSym*/ true, &File);
491 // Make sure we preempt DSO symbols with default visibility.485 // Make sure we preempt DSO symbols with default visibility.
492 if (Sym.getVisibility() == STV_DEFAULT)486 if (Sym.getVisibility() == STV_DEFAULT)
493 S->ExportDynamic = true;487 S->ExportDynamic = true;
494488
495 SymbolBody *Body = S->body();
496 // An undefined symbol with non default visibility must be satisfied489 // An undefined symbol with non default visibility must be satisfied
497 // in the same DSO.490 // in the same DSO.
498 if (WasInserted ||491 if (WasInserted || ((S->isUndefined() || S->isLazy()) &&
499 (isa<Undefined>(Body) && Body->getVisibility() == STV_DEFAULT)) {492 S->getVisibility() == STV_DEFAULT)) {
500 replaceBody<SharedSymbol>(S, File, Name, Sym.st_other, Sym.getType(), &Sym,493 uint8_t Binding = S->Binding;
501 Verdef);494 replaceSymbol<SharedSymbol>(S, File, Name, Sym.getBinding(), Sym.st_other,
502 if (!S->isWeak())495 Sym.getType(), Sym.st_value, Sym.st_size,
503 File->IsUsed = true;496 Alignment, VerdefIndex);
497 if (!WasInserted) {
498 S->Binding = Binding;
499 if (!S->isWeak() && !Config->GcSections)
500 File.IsNeeded = true;
501 }
504 }502 }
505}503}
506504
507template <class ELFT>505Symbol *SymbolTable::addBitcode(StringRef Name, uint8_t Binding,
508Symbol *SymbolTable<ELFT>::addBitcode(StringRef Name, uint8_t Binding,506 uint8_t StOther, uint8_t Type,
509 uint8_t StOther, uint8_t Type,507 bool CanOmitFromDynSym, BitcodeFile &F) {
510 bool CanOmitFromDynSym, BitcodeFile *F) {
511 Symbol *S;508 Symbol *S;
512 bool WasInserted;509 bool WasInserted;
513 std::tie(S, WasInserted) =510 std::tie(S, WasInserted) =
514 insert(Name, Type, getVisibility(StOther), CanOmitFromDynSym, F);511 insert(Name, Type, getVisibility(StOther), CanOmitFromDynSym, &F);
515 int Cmp = compareDefinedNonCommon<ELFT>(S, WasInserted, Binding,512 int Cmp = compareDefinedNonCommon(S, WasInserted, Binding,
516 /*IsAbs*/ false, /*Value*/ 0, Name);513 /*IsAbs*/ false, /*Value*/ 0, Name);
517 if (Cmp > 0)514 if (Cmp > 0)
518 replaceBody<DefinedRegular>(S, Name, /*IsLocal=*/false, StOther, Type, 0, 0,515 replaceSymbol<Defined>(S, &F, Name, Binding, StOther, Type, 0, 0, nullptr);
519 nullptr, F);
520 else if (Cmp == 0)516 else if (Cmp == 0)
521 reportDuplicate(S->body(), F);517 reportDuplicate(S, &F);
522 return S;518 return S;
523}519}
524520
525template <class ELFT> SymbolBody *SymbolTable<ELFT>::find(StringRef Name) {521Symbol *SymbolTable::find(StringRef Name) {
526 auto It = Symtab.find(CachedHashStringRef(Name));522 auto It = SymMap.find(CachedHashStringRef(Name));
527 if (It == Symtab.end())523 if (It == SymMap.end())
528 return nullptr;524 return nullptr;
529 SymIndex V = It->second;525 if (It->second == -1)
530 if (V.Idx == -1)
531 return nullptr;526 return nullptr;
532 return SymVector[V.Idx]->body();527 return SymVector[It->second];
533}528}
534529
535template <class ELFT>530template <class ELFT>
536SymbolBody *SymbolTable<ELFT>::findInCurrentDSO(StringRef Name) {531Symbol *SymbolTable::addLazyArchive(StringRef Name, ArchiveFile &F,
537 if (SymbolBody *S = find(Name))532 const object::Archive::Symbol Sym) {
538 if (S->isInCurrentDSO())
539 return S;
540 return nullptr;
541}
542
543template <class ELFT>
544Symbol *SymbolTable<ELFT>::addLazyArchive(ArchiveFile *F,
545 const object::Archive::Symbol Sym) {
546 Symbol *S;533 Symbol *S;
547 bool WasInserted;534 bool WasInserted;
548 StringRef Name = Sym.getName();
549 std::tie(S, WasInserted) = insert(Name);535 std::tie(S, WasInserted) = insert(Name);
550 if (WasInserted) {536 if (WasInserted) {
551 replaceBody<LazyArchive>(S, *F, Sym, SymbolBody::UnknownType);537 replaceSymbol<LazyArchive>(S, F, Sym, Symbol::UnknownType);
552 return S;538 return S;
553 }539 }
554 if (!S->body()->isUndefined())540 if (!S->isUndefined())
555 return S;541 return S;
556542
557 // Weak undefined symbols should not fetch members from archives. If we were543 // An undefined weak will not fetch archive members. See comment on Lazy in
558 // to keep old symbol we would not know that an archive member was available544 // Symbols.h for the details.
559 // if a strong undefined symbol shows up afterwards in the link. If a strong
560 // undefined symbol never shows up, this lazy symbol will get to the end of
561 // the link and must be treated as the weak undefined one. We already marked
562 // this symbol as used when we added it to the symbol table, but we also need
563 // to preserve its type. FIXME: Move the Type field to Symbol.
564 if (S->isWeak()) {545 if (S->isWeak()) {
565 replaceBody<LazyArchive>(S, *F, Sym, S->body()->Type);546 replaceSymbol<LazyArchive>(S, F, Sym, S->Type);
547 S->Binding = STB_WEAK;
566 return S;548 return S;
567 }549 }
568 std::pair<MemoryBufferRef, uint64_t> MBInfo = F->getMember(&Sym);550 std::pair<MemoryBufferRef, uint64_t> MBInfo = F.getMember(&Sym);
569 if (!MBInfo.first.getBuffer().empty())551 if (!MBInfo.first.getBuffer().empty())
570 addFile(createObjectFile(MBInfo.first, F->getName(), MBInfo.second));552 addFile<ELFT>(createObjectFile(MBInfo.first, F.getName(), MBInfo.second));
571 return S;553 return S;
572}554}
573555
574template <class ELFT>556template <class ELFT>
575void SymbolTable<ELFT>::addLazyObject(StringRef Name, LazyObjectFile &Obj) {557void SymbolTable::addLazyObject(StringRef Name, LazyObjFile &Obj) {
576 Symbol *S;558 Symbol *S;
577 bool WasInserted;559 bool WasInserted;
578 std::tie(S, WasInserted) = insert(Name);560 std::tie(S, WasInserted) = insert(Name);
579 if (WasInserted) {561 if (WasInserted) {
580 replaceBody<LazyObject>(S, Name, Obj, SymbolBody::UnknownType);562 replaceSymbol<LazyObject>(S, Obj, Name, Symbol::UnknownType);
581 return;563 return;
582 }564 }
583 if (!S->body()->isUndefined())565 if (!S->isUndefined())
584 return;566 return;
585567
586 // See comment for addLazyArchive above.568 // See comment for addLazyArchive above.
587 if (S->isWeak())569 if (S->isWeak())
588 replaceBody<LazyObject>(S, Name, Obj, S->body()->Type);570 replaceSymbol<LazyObject>(S, Obj, Name, S->Type);
589 else if (InputFile *F = Obj.fetch())571 else if (InputFile *F = Obj.fetch())
590 addFile(F);572 addFile<ELFT>(F);
591}573}
592574
593// Process undefined (-u) flags by loading lazy symbols named by those flags.575// If we already saw this symbol, force loading its file.
594template <class ELFT> void SymbolTable<ELFT>::scanUndefinedFlags() {576template <class ELFT> void SymbolTable::fetchIfLazy(StringRef Name) {
595 for (StringRef S : Config->Undefined)577 if (Symbol *B = find(Name)) {
596 if (auto *L = dyn_cast_or_null<Lazy>(find(S)))578 // Mark the symbol not to be eliminated by LTO
579 // even if it is a bitcode symbol.
580 B->IsUsedInRegularObj = true;
581 if (auto *L = dyn_cast<Lazy>(B))
597 if (InputFile *File = L->fetch())582 if (InputFile *File = L->fetch())
598 addFile(File);583 addFile<ELFT>(File);
584 }
599}585}
600586
601// This function takes care of the case in which shared libraries depend on587// This function takes care of the case in which shared libraries depend on
...@@ -605,19 +591,19 @@ template <class ELFT> void SymbolTable<ELFT>::scanUndefinedFlags() {...@@ -605,19 +591,19 @@ template <class ELFT> void SymbolTable<ELFT>::scanUndefinedFlags() {
605// We need to put such symbols to the main program's .dynsym so that591// We need to put such symbols to the main program's .dynsym so that
606// shared libraries can find them.592// shared libraries can find them.
607// Except this, we ignore undefined symbols in DSOs.593// Except this, we ignore undefined symbols in DSOs.
608template <class ELFT> void SymbolTable<ELFT>::scanShlibUndefined() {594template <class ELFT> void SymbolTable::scanShlibUndefined() {
609 for (SharedFile<ELFT> *File : SharedFiles) {595 for (InputFile *F : SharedFiles) {
610 for (StringRef U : File->getUndefinedSymbols()) {596 for (StringRef U : cast<SharedFile<ELFT>>(F)->getUndefinedSymbols()) {
611 SymbolBody *Sym = find(U);597 Symbol *Sym = find(U);
612 if (!Sym || !Sym->isDefined())598 if (!Sym || !Sym->isDefined())
613 continue;599 continue;
614 Sym->symbol()->ExportDynamic = true;600 Sym->ExportDynamic = true;
615601
616 // If -dynamic-list is given, the default version is set to602 // If -dynamic-list is given, the default version is set to
617 // VER_NDX_LOCAL, which prevents a symbol to be exported via .dynsym.603 // VER_NDX_LOCAL, which prevents a symbol to be exported via .dynsym.
618 // Set to VER_NDX_GLOBAL so the symbol will be handled as if it were604 // Set to VER_NDX_GLOBAL so the symbol will be handled as if it were
619 // specified by -dynamic-list.605 // specified by -dynamic-list.
620 Sym->symbol()->VersionId = VER_NDX_GLOBAL;606 Sym->VersionId = VER_NDX_GLOBAL;
621 }607 }
622 }608 }
623}609}
...@@ -635,37 +621,32 @@ template <class ELFT> void SymbolTable<ELFT>::scanShlibUndefined() {...@@ -635,37 +621,32 @@ template <class ELFT> void SymbolTable<ELFT>::scanShlibUndefined() {
635// other than trying to match a pattern against all demangled symbols.621// other than trying to match a pattern against all demangled symbols.
636// So, if "extern C++" feature is used, we need to demangle all known622// So, if "extern C++" feature is used, we need to demangle all known
637// symbols.623// symbols.
638template <class ELFT>624StringMap<std::vector<Symbol *>> &SymbolTable::getDemangledSyms() {
639StringMap<std::vector<SymbolBody *>> &SymbolTable<ELFT>::getDemangledSyms() {
640 if (!DemangledSyms) {625 if (!DemangledSyms) {
641 DemangledSyms.emplace();626 DemangledSyms.emplace();
642 for (Symbol *Sym : SymVector) {627 for (Symbol *Sym : SymVector) {
643 SymbolBody *B = Sym->body();628 if (!Sym->isDefined())
644 if (B->isUndefined())
645 continue;629 continue;
646 if (Optional<std::string> S = demangle(B->getName()))630 if (Optional<std::string> S = demangleItanium(Sym->getName()))
647 (*DemangledSyms)[*S].push_back(B);631 (*DemangledSyms)[*S].push_back(Sym);
648 else632 else
649 (*DemangledSyms)[B->getName()].push_back(B);633 (*DemangledSyms)[Sym->getName()].push_back(Sym);
650 }634 }
651 }635 }
652 return *DemangledSyms;636 return *DemangledSyms;
653}637}
654638
655template <class ELFT>639std::vector<Symbol *> SymbolTable::findByVersion(SymbolVersion Ver) {
656std::vector<SymbolBody *> SymbolTable<ELFT>::findByVersion(SymbolVersion Ver) {
657 if (Ver.IsExternCpp)640 if (Ver.IsExternCpp)
658 return getDemangledSyms().lookup(Ver.Name);641 return getDemangledSyms().lookup(Ver.Name);
659 if (SymbolBody *B = find(Ver.Name))642 if (Symbol *B = find(Ver.Name))
660 if (!B->isUndefined())643 if (B->isDefined())
661 return {B};644 return {B};
662 return {};645 return {};
663}646}
664647
665template <class ELFT>648std::vector<Symbol *> SymbolTable::findAllByVersion(SymbolVersion Ver) {
666std::vector<SymbolBody *>649 std::vector<Symbol *> Res;
667SymbolTable<ELFT>::findAllByVersion(SymbolVersion Ver) {
668 std::vector<SymbolBody *> Res;
669 StringMatcher M(Ver.Name);650 StringMatcher M(Ver.Name);
670651
671 if (Ver.IsExternCpp) {652 if (Ver.IsExternCpp) {
...@@ -675,18 +656,16 @@ SymbolTable<ELFT>::findAllByVersion(SymbolVersion Ver) {...@@ -675,18 +656,16 @@ SymbolTable<ELFT>::findAllByVersion(SymbolVersion Ver) {
675 return Res;656 return Res;
676 }657 }
677658
678 for (Symbol *Sym : SymVector) {659 for (Symbol *Sym : SymVector)
679 SymbolBody *B = Sym->body();660 if (Sym->isDefined() && M.match(Sym->getName()))
680 if (!B->isUndefined() && M.match(B->getName()))661 Res.push_back(Sym);
681 Res.push_back(B);
682 }
683 return Res;662 return Res;
684}663}
685664
686// If there's only one anonymous version definition in a version665// If there's only one anonymous version definition in a version
687// script file, the script does not actually define any symbol version,666// script file, the script does not actually define any symbol version,
688// but just specifies symbols visibilities.667// but just specifies symbols visibilities.
689template <class ELFT> void SymbolTable<ELFT>::handleAnonymousVersion() {668void SymbolTable::handleAnonymousVersion() {
690 for (SymbolVersion &Ver : Config->VersionScriptGlobals)669 for (SymbolVersion &Ver : Config->VersionScriptGlobals)
691 assignExactVersion(Ver, VER_NDX_GLOBAL, "global");670 assignExactVersion(Ver, VER_NDX_GLOBAL, "global");
692 for (SymbolVersion &Ver : Config->VersionScriptGlobals)671 for (SymbolVersion &Ver : Config->VersionScriptGlobals)
...@@ -697,17 +676,33 @@ template <class ELFT> void SymbolTable<ELFT>::handleAnonymousVersion() {...@@ -697,17 +676,33 @@ template <class ELFT> void SymbolTable<ELFT>::handleAnonymousVersion() {
697 assignWildcardVersion(Ver, VER_NDX_LOCAL);676 assignWildcardVersion(Ver, VER_NDX_LOCAL);
698}677}
699678
679// Handles -dynamic-list.
680void SymbolTable::handleDynamicList() {
681 for (SymbolVersion &Ver : Config->DynamicList) {
682 std::vector<Symbol *> Syms;
683 if (Ver.HasWildcard)
684 Syms = findAllByVersion(Ver);
685 else
686 Syms = findByVersion(Ver);
687
688 for (Symbol *B : Syms) {
689 if (!Config->Shared)
690 B->ExportDynamic = true;
691 else if (B->includeInDynsym())
692 B->IsPreemptible = true;
693 }
694 }
695}
696
700// Set symbol versions to symbols. This function handles patterns697// Set symbol versions to symbols. This function handles patterns
701// containing no wildcard characters.698// containing no wildcard characters.
702template <class ELFT>699void SymbolTable::assignExactVersion(SymbolVersion Ver, uint16_t VersionId,
703void SymbolTable<ELFT>::assignExactVersion(SymbolVersion Ver,700 StringRef VersionName) {
704 uint16_t VersionId,
705 StringRef VersionName) {
706 if (Ver.HasWildcard)701 if (Ver.HasWildcard)
707 return;702 return;
708703
709 // Get a list of symbols which we need to assign the version to.704 // Get a list of symbols which we need to assign the version to.
710 std::vector<SymbolBody *> Syms = findByVersion(Ver);705 std::vector<Symbol *> Syms = findByVersion(Ver);
711 if (Syms.empty()) {706 if (Syms.empty()) {
712 if (Config->NoUndefinedVersion)707 if (Config->NoUndefinedVersion)
713 error("version script assignment of '" + VersionName + "' to symbol '" +708 error("version script assignment of '" + VersionName + "' to symbol '" +
...@@ -716,14 +711,13 @@ void SymbolTable<ELFT>::assignExactVersion(SymbolVersion Ver,...@@ -716,14 +711,13 @@ void SymbolTable<ELFT>::assignExactVersion(SymbolVersion Ver,
716 }711 }
717712
718 // Assign the version.713 // Assign the version.
719 for (SymbolBody *B : Syms) {714 for (Symbol *Sym : Syms) {
720 // Skip symbols containing version info because symbol versions715 // Skip symbols containing version info because symbol versions
721 // specified by symbol names take precedence over version scripts.716 // specified by symbol names take precedence over version scripts.
722 // See parseSymbolVersion().717 // See parseSymbolVersion().
723 if (B->getName().find('@') != StringRef::npos)718 if (Sym->getName().contains('@'))
724 continue;719 continue;
725720
726 Symbol *Sym = B->symbol();
727 if (Sym->InVersionScript)721 if (Sym->InVersionScript)
728 warn("duplicate symbol '" + Ver.Name + "' in version script");722 warn("duplicate symbol '" + Ver.Name + "' in version script");
729 Sym->VersionId = VersionId;723 Sym->VersionId = VersionId;
...@@ -731,25 +725,24 @@ void SymbolTable<ELFT>::assignExactVersion(SymbolVersion Ver,...@@ -731,25 +725,24 @@ void SymbolTable<ELFT>::assignExactVersion(SymbolVersion Ver,
731 }725 }
732}726}
733727
734template <class ELFT>728void SymbolTable::assignWildcardVersion(SymbolVersion Ver, uint16_t VersionId) {
735void SymbolTable<ELFT>::assignWildcardVersion(SymbolVersion Ver,
736 uint16_t VersionId) {
737 if (!Ver.HasWildcard)729 if (!Ver.HasWildcard)
738 return;730 return;
739731
740 // Exact matching takes precendence over fuzzy matching,732 // Exact matching takes precendence over fuzzy matching,
741 // so we set a version to a symbol only if no version has been assigned733 // so we set a version to a symbol only if no version has been assigned
742 // to the symbol. This behavior is compatible with GNU.734 // to the symbol. This behavior is compatible with GNU.
743 for (SymbolBody *B : findAllByVersion(Ver))735 for (Symbol *B : findAllByVersion(Ver))
744 if (B->symbol()->VersionId == Config->DefaultSymbolVersion)736 if (B->VersionId == Config->DefaultSymbolVersion)
745 B->symbol()->VersionId = VersionId;737 B->VersionId = VersionId;
746}738}
747739
748// This function processes version scripts by updating VersionId740// This function processes version scripts by updating VersionId
749// member of symbols.741// member of symbols.
750template <class ELFT> void SymbolTable<ELFT>::scanVersionScript() {742void SymbolTable::scanVersionScript() {
751 // Handle edge cases first.743 // Handle edge cases first.
752 handleAnonymousVersion();744 handleAnonymousVersion();
745 handleDynamicList();
753746
754 // Now we have version definitions, so we need to set version ids to symbols.747 // Now we have version definitions, so we need to set version ids to symbols.
755 // Each version definition has a glob pattern, and all symbols that match748 // Each version definition has a glob pattern, and all symbols that match
...@@ -773,10 +766,70 @@ template <class ELFT> void SymbolTable<ELFT>::scanVersionScript() {...@@ -773,10 +766,70 @@ template <class ELFT> void SymbolTable<ELFT>::scanVersionScript() {
773 // can contain versions in the form of <name>@<version>.766 // can contain versions in the form of <name>@<version>.
774 // Let them parse and update their names to exclude version suffix.767 // Let them parse and update their names to exclude version suffix.
775 for (Symbol *Sym : SymVector)768 for (Symbol *Sym : SymVector)
776 Sym->body()->parseSymbolVersion();769 Sym->parseSymbolVersion();
777}770}
778771
779template class elf::SymbolTable<ELF32LE>;772template void SymbolTable::addSymbolWrap<ELF32LE>(StringRef);
780template class elf::SymbolTable<ELF32BE>;773template void SymbolTable::addSymbolWrap<ELF32BE>(StringRef);
781template class elf::SymbolTable<ELF64LE>;774template void SymbolTable::addSymbolWrap<ELF64LE>(StringRef);
782template class elf::SymbolTable<ELF64BE>;775template void SymbolTable::addSymbolWrap<ELF64BE>(StringRef);
776
777template Symbol *SymbolTable::addUndefined<ELF32LE>(StringRef);
778template Symbol *SymbolTable::addUndefined<ELF32BE>(StringRef);
779template Symbol *SymbolTable::addUndefined<ELF64LE>(StringRef);
780template Symbol *SymbolTable::addUndefined<ELF64BE>(StringRef);
781
782template Symbol *SymbolTable::addUndefined<ELF32LE>(StringRef, uint8_t, uint8_t,
783 uint8_t, bool, InputFile *);
784template Symbol *SymbolTable::addUndefined<ELF32BE>(StringRef, uint8_t, uint8_t,
785 uint8_t, bool, InputFile *);
786template Symbol *SymbolTable::addUndefined<ELF64LE>(StringRef, uint8_t, uint8_t,
787 uint8_t, bool, InputFile *);
788template Symbol *SymbolTable::addUndefined<ELF64BE>(StringRef, uint8_t, uint8_t,
789 uint8_t, bool, InputFile *);
790
791template void SymbolTable::addCombinedLTOObject<ELF32LE>();
792template void SymbolTable::addCombinedLTOObject<ELF32BE>();
793template void SymbolTable::addCombinedLTOObject<ELF64LE>();
794template void SymbolTable::addCombinedLTOObject<ELF64BE>();
795
796template Symbol *
797SymbolTable::addLazyArchive<ELF32LE>(StringRef, ArchiveFile &,
798 const object::Archive::Symbol);
799template Symbol *
800SymbolTable::addLazyArchive<ELF32BE>(StringRef, ArchiveFile &,
801 const object::Archive::Symbol);
802template Symbol *
803SymbolTable::addLazyArchive<ELF64LE>(StringRef, ArchiveFile &,
804 const object::Archive::Symbol);
805template Symbol *
806SymbolTable::addLazyArchive<ELF64BE>(StringRef, ArchiveFile &,
807 const object::Archive::Symbol);
808
809template void SymbolTable::addLazyObject<ELF32LE>(StringRef, LazyObjFile &);
810template void SymbolTable::addLazyObject<ELF32BE>(StringRef, LazyObjFile &);
811template void SymbolTable::addLazyObject<ELF64LE>(StringRef, LazyObjFile &);
812template void SymbolTable::addLazyObject<ELF64BE>(StringRef, LazyObjFile &);
813
814template void SymbolTable::addShared<ELF32LE>(StringRef, SharedFile<ELF32LE> &,
815 const typename ELF32LE::Sym &,
816 uint32_t Alignment, uint32_t);
817template void SymbolTable::addShared<ELF32BE>(StringRef, SharedFile<ELF32BE> &,
818 const typename ELF32BE::Sym &,
819 uint32_t Alignment, uint32_t);
820template void SymbolTable::addShared<ELF64LE>(StringRef, SharedFile<ELF64LE> &,
821 const typename ELF64LE::Sym &,
822 uint32_t Alignment, uint32_t);
823template void SymbolTable::addShared<ELF64BE>(StringRef, SharedFile<ELF64BE> &,
824 const typename ELF64BE::Sym &,
825 uint32_t Alignment, uint32_t);
826
827template void SymbolTable::fetchIfLazy<ELF32LE>(StringRef);
828template void SymbolTable::fetchIfLazy<ELF32BE>(StringRef);
829template void SymbolTable::fetchIfLazy<ELF64LE>(StringRef);
830template void SymbolTable::fetchIfLazy<ELF64BE>(StringRef);
831
832template void SymbolTable::scanShlibUndefined<ELF32LE>();
833template void SymbolTable::scanShlibUndefined<ELF32BE>();
834template void SymbolTable::scanShlibUndefined<ELF64LE>();
835template void SymbolTable::scanShlibUndefined<ELF64BE>();
deps/lld/ELF/SymbolTable.h+48-53
...@@ -18,8 +18,8 @@...@@ -18,8 +18,8 @@
1818
19namespace lld {19namespace lld {
20namespace elf {20namespace elf {
2121class Defined;
22struct Symbol;22class SectionBase;
2323
24// SymbolTable is a bucket of all known symbols, including defined,24// SymbolTable is a bucket of all known symbols, including defined,
25// undefined, or lazy symbols (the last one is symbols in archive25// undefined, or lazy symbols (the last one is symbols in archive
...@@ -33,78 +33,71 @@ struct Symbol;...@@ -33,78 +33,71 @@ struct Symbol;
33// to replace the lazy symbol. The logic is implemented in the33// to replace the lazy symbol. The logic is implemented in the
34// add*() functions, which are called by input files as they are parsed. There34// add*() functions, which are called by input files as they are parsed. There
35// is one add* function per symbol type.35// is one add* function per symbol type.
36template <class ELFT> class SymbolTable {36class SymbolTable {
37 typedef typename ELFT::Sym Elf_Sym;
38
39public:37public:
40 void addFile(InputFile *File);38 template <class ELFT> void addFile(InputFile *File);
41 void addCombinedLTOObject();39 template <class ELFT> void addCombinedLTOObject();
42 void addSymbolAlias(StringRef Alias, StringRef Name);40 template <class ELFT> void addSymbolWrap(StringRef Name);
43 void addSymbolWrap(StringRef Name);41 void applySymbolWrap();
44 void applySymbolRenames();
4542
46 ArrayRef<Symbol *> getSymbols() const { return SymVector; }43 ArrayRef<Symbol *> getSymbols() const { return SymVector; }
47 ArrayRef<ObjectFile<ELFT> *> getObjectFiles() const { return ObjectFiles; }
48 ArrayRef<BinaryFile *> getBinaryFiles() const { return BinaryFiles; }
49 ArrayRef<SharedFile<ELFT> *> getSharedFiles() const { return SharedFiles; }
5044
51 DefinedRegular *addAbsolute(StringRef Name,45 Defined *addAbsolute(StringRef Name,
52 uint8_t Visibility = llvm::ELF::STV_HIDDEN,46 uint8_t Visibility = llvm::ELF::STV_HIDDEN,
53 uint8_t Binding = llvm::ELF::STB_GLOBAL);47 uint8_t Binding = llvm::ELF::STB_GLOBAL);
54 DefinedRegular *addIgnored(StringRef Name,
55 uint8_t Visibility = llvm::ELF::STV_HIDDEN);
56
57 Symbol *addUndefined(StringRef Name);
58 Symbol *addUndefined(StringRef Name, bool IsLocal, uint8_t Binding,
59 uint8_t StOther, uint8_t Type, bool CanOmitFromDynSym,
60 InputFile *File);
6148
49 template <class ELFT> Symbol *addUndefined(StringRef Name);
50 template <class ELFT>
51 Symbol *addUndefined(StringRef Name, uint8_t Binding, uint8_t StOther,
52 uint8_t Type, bool CanOmitFromDynSym, InputFile *File);
62 Symbol *addRegular(StringRef Name, uint8_t StOther, uint8_t Type,53 Symbol *addRegular(StringRef Name, uint8_t StOther, uint8_t Type,
63 uint64_t Value, uint64_t Size, uint8_t Binding,54 uint64_t Value, uint64_t Size, uint8_t Binding,
64 SectionBase *Section, InputFile *File);55 SectionBase *Section, InputFile *File);
6556
66 void addShared(SharedFile<ELFT> *F, StringRef Name, const Elf_Sym &Sym,57 template <class ELFT>
67 const typename ELFT::Verdef *Verdef);58 void addShared(StringRef Name, SharedFile<ELFT> &F,
59 const typename ELFT::Sym &Sym, uint32_t Alignment,
60 uint32_t VerdefIndex);
61
62 template <class ELFT>
63 Symbol *addLazyArchive(StringRef Name, ArchiveFile &F,
64 const llvm::object::Archive::Symbol S);
65
66 template <class ELFT> void addLazyObject(StringRef Name, LazyObjFile &Obj);
6867
69 Symbol *addLazyArchive(ArchiveFile *F, const llvm::object::Archive::Symbol S);
70 void addLazyObject(StringRef Name, LazyObjectFile &Obj);
71 Symbol *addBitcode(StringRef Name, uint8_t Binding, uint8_t StOther,68 Symbol *addBitcode(StringRef Name, uint8_t Binding, uint8_t StOther,
72 uint8_t Type, bool CanOmitFromDynSym, BitcodeFile *File);69 uint8_t Type, bool CanOmitFromDynSym, BitcodeFile &File);
7370
74 Symbol *addCommon(StringRef N, uint64_t Size, uint32_t Alignment,71 Symbol *addCommon(StringRef Name, uint64_t Size, uint32_t Alignment,
75 uint8_t Binding, uint8_t StOther, uint8_t Type,72 uint8_t Binding, uint8_t StOther, uint8_t Type,
76 InputFile *File);73 InputFile &File);
7774
78 std::pair<Symbol *, bool> insert(StringRef Name);75 std::pair<Symbol *, bool> insert(StringRef Name);
79 std::pair<Symbol *, bool> insert(StringRef Name, uint8_t Type,76 std::pair<Symbol *, bool> insert(StringRef Name, uint8_t Type,
80 uint8_t Visibility, bool CanOmitFromDynSym,77 uint8_t Visibility, bool CanOmitFromDynSym,
81 InputFile *File);78 InputFile *File);
8279
83 void scanUndefinedFlags();80 template <class ELFT> void fetchIfLazy(StringRef Name);
84 void scanShlibUndefined();81 template <class ELFT> void scanShlibUndefined();
85 void scanVersionScript();82 void scanVersionScript();
8683
87 SymbolBody *find(StringRef Name);84 Symbol *find(StringRef Name);
88 SymbolBody *findInCurrentDSO(StringRef Name);
8985
90 void trace(StringRef Name);86 void trace(StringRef Name);
9187
88 void handleDynamicList();
89
92private:90private:
93 std::vector<SymbolBody *> findByVersion(SymbolVersion Ver);91 std::vector<Symbol *> findByVersion(SymbolVersion Ver);
94 std::vector<SymbolBody *> findAllByVersion(SymbolVersion Ver);92 std::vector<Symbol *> findAllByVersion(SymbolVersion Ver);
93 void defsym(Symbol *Dst, Symbol *Src);
9594
96 llvm::StringMap<std::vector<SymbolBody *>> &getDemangledSyms();95 llvm::StringMap<std::vector<Symbol *>> &getDemangledSyms();
97 void handleAnonymousVersion();96 void handleAnonymousVersion();
98 void assignExactVersion(SymbolVersion Ver, uint16_t VersionId,97 void assignExactVersion(SymbolVersion Ver, uint16_t VersionId,
99 StringRef VersionName);98 StringRef VersionName);
100 void assignWildcardVersion(SymbolVersion Ver, uint16_t VersionId);99 void assignWildcardVersion(SymbolVersion Ver, uint16_t VersionId);
101100
102 struct SymIndex {
103 SymIndex(int Idx, bool Traced) : Idx(Idx), Traced(Traced) {}
104 int Idx : 31;
105 unsigned Traced : 1;
106 };
107
108 // The order the global symbols are in is not defined. We can use an arbitrary101 // The order the global symbols are in is not defined. We can use an arbitrary
109 // order, but it has to be reproducible. That is true even when cross linking.102 // order, but it has to be reproducible. That is true even when cross linking.
110 // The default hashing of StringRef produces different results on 32 and 64103 // The default hashing of StringRef produces different results on 32 and 64
...@@ -112,7 +105,7 @@ private:...@@ -112,7 +105,7 @@ private:
112 // but a bit inefficient.105 // but a bit inefficient.
113 // FIXME: Experiment with passing in a custom hashing or sorting the symbols106 // FIXME: Experiment with passing in a custom hashing or sorting the symbols
114 // once symbol resolution is finished.107 // once symbol resolution is finished.
115 llvm::DenseMap<llvm::CachedHashStringRef, SymIndex> Symtab;108 llvm::DenseMap<llvm::CachedHashStringRef, int> SymMap;
116 std::vector<Symbol *> SymVector;109 std::vector<Symbol *> SymVector;
117110
118 // Comdat groups define "link once" sections. If two comdat groups have the111 // Comdat groups define "link once" sections. If two comdat groups have the
...@@ -120,11 +113,6 @@ private:...@@ -120,11 +113,6 @@ private:
120 // is used to uniquify them.113 // is used to uniquify them.
121 llvm::DenseSet<llvm::CachedHashStringRef> ComdatGroups;114 llvm::DenseSet<llvm::CachedHashStringRef> ComdatGroups;
122115
123 std::vector<ObjectFile<ELFT> *> ObjectFiles;
124 std::vector<SharedFile<ELFT> *> SharedFiles;
125 std::vector<BitcodeFile *> BitcodeFiles;
126 std::vector<BinaryFile *> BinaryFiles;
127
128 // Set of .so files to not link the same shared object file more than once.116 // Set of .so files to not link the same shared object file more than once.
129 llvm::DenseSet<StringRef> SoNames;117 llvm::DenseSet<StringRef> SoNames;
130118
...@@ -132,15 +120,22 @@ private:...@@ -132,15 +120,22 @@ private:
132 // This mapping is 1:N because two symbols with different versions120 // This mapping is 1:N because two symbols with different versions
133 // can have the same name. We use this map to handle "extern C++ {}"121 // can have the same name. We use this map to handle "extern C++ {}"
134 // directive in version scripts.122 // directive in version scripts.
135 llvm::Optional<llvm::StringMap<std::vector<SymbolBody *>>> DemangledSyms;123 llvm::Optional<llvm::StringMap<std::vector<Symbol *>>> DemangledSyms;
124
125 struct WrappedSymbol {
126 Symbol *Sym;
127 Symbol *Real;
128 Symbol *Wrap;
129 };
130
131 // For -wrap.
132 std::vector<WrappedSymbol> WrappedSymbols;
136133
137 // For LTO.134 // For LTO.
138 std::unique_ptr<BitcodeCompiler> LTO;135 std::unique_ptr<BitcodeCompiler> LTO;
139};136};
140137
141template <class ELFT> struct Symtab { static SymbolTable<ELFT> *X; };138extern SymbolTable *Symtab;
142template <class ELFT> SymbolTable<ELFT> *Symtab<ELFT>::X;
143
144} // namespace elf139} // namespace elf
145} // namespace lld140} // namespace lld
146141
deps/lld/ELF/Symbols.cpp+67-184
...@@ -8,15 +8,15 @@...@@ -8,15 +8,15 @@
8//===----------------------------------------------------------------------===//8//===----------------------------------------------------------------------===//
99
10#include "Symbols.h"10#include "Symbols.h"
11#include "Error.h"
12#include "InputFiles.h"11#include "InputFiles.h"
13#include "InputSection.h"12#include "InputSection.h"
14#include "OutputSections.h"13#include "OutputSections.h"
15#include "Strings.h"
16#include "SyntheticSections.h"14#include "SyntheticSections.h"
17#include "Target.h"15#include "Target.h"
18#include "Writer.h"16#include "Writer.h"
1917
18#include "lld/Common/ErrorHandler.h"
19#include "lld/Common/Strings.h"
20#include "llvm/ADT/STLExtras.h"20#include "llvm/ADT/STLExtras.h"
21#include "llvm/Support/Path.h"21#include "llvm/Support/Path.h"
22#include <cstring>22#include <cstring>
...@@ -28,25 +28,23 @@ using namespace llvm::ELF;...@@ -28,25 +28,23 @@ using namespace llvm::ELF;
28using namespace lld;28using namespace lld;
29using namespace lld::elf;29using namespace lld::elf;
3030
31DefinedRegular *ElfSym::Bss;31Defined *ElfSym::Bss;
32DefinedRegular *ElfSym::Etext1;32Defined *ElfSym::Etext1;
33DefinedRegular *ElfSym::Etext2;33Defined *ElfSym::Etext2;
34DefinedRegular *ElfSym::Edata1;34Defined *ElfSym::Edata1;
35DefinedRegular *ElfSym::Edata2;35Defined *ElfSym::Edata2;
36DefinedRegular *ElfSym::End1;36Defined *ElfSym::End1;
37DefinedRegular *ElfSym::End2;37Defined *ElfSym::End2;
38DefinedRegular *ElfSym::GlobalOffsetTable;38Defined *ElfSym::GlobalOffsetTable;
39DefinedRegular *ElfSym::MipsGp;39Defined *ElfSym::MipsGp;
40DefinedRegular *ElfSym::MipsGpDisp;40Defined *ElfSym::MipsGpDisp;
41DefinedRegular *ElfSym::MipsLocalGp;41Defined *ElfSym::MipsLocalGp;
4242
43static uint64_t getSymVA(const SymbolBody &Body, int64_t &Addend) {43static uint64_t getSymVA(const Symbol &Sym, int64_t &Addend) {
44 switch (Body.kind()) {44 switch (Sym.kind()) {
45 case SymbolBody::DefinedRegularKind: {45 case Symbol::DefinedKind: {
46 auto &D = cast<DefinedRegular>(Body);46 auto &D = cast<Defined>(Sym);
47 SectionBase *IS = D.Section;47 SectionBase *IS = D.Section;
48 if (auto *ISB = dyn_cast_or_null<InputSectionBase>(IS))
49 IS = ISB->Repl;
5048
51 // According to the ELF spec reference to a local symbol from outside49 // According to the ELF spec reference to a local symbol from outside
52 // the group are not allowed. Unfortunately .eh_frame breaks that rule50 // the group are not allowed. Unfortunately .eh_frame breaks that rule
...@@ -59,6 +57,7 @@ static uint64_t getSymVA(const SymbolBody &Body, int64_t &Addend) {...@@ -59,6 +57,7 @@ static uint64_t getSymVA(const SymbolBody &Body, int64_t &Addend) {
59 if (!IS)57 if (!IS)
60 return D.Value;58 return D.Value;
6159
60 IS = IS->Repl;
62 uint64_t Offset = D.Value;61 uint64_t Offset = D.Value;
6362
64 // An object in an SHF_MERGE section might be referenced via a63 // An object in an SHF_MERGE section might be referenced via a
...@@ -99,139 +98,79 @@ static uint64_t getSymVA(const SymbolBody &Body, int64_t &Addend) {...@@ -99,139 +98,79 @@ static uint64_t getSymVA(const SymbolBody &Body, int64_t &Addend) {
99 }98 }
100 return VA;99 return VA;
101 }100 }
102 case SymbolBody::DefinedCommonKind:101 case Symbol::SharedKind: {
103 if (!Config->DefineCommon)102 auto &SS = cast<SharedSymbol>(Sym);
104 return 0;103 if (SS.CopyRelSec)
105 return InX::Common->getParent()->Addr + InX::Common->OutSecOff +104 return SS.CopyRelSec->getParent()->Addr + SS.CopyRelSec->OutSecOff;
106 cast<DefinedCommon>(Body).Offset;
107 case SymbolBody::SharedKind: {
108 auto &SS = cast<SharedSymbol>(Body);
109 if (SS.NeedsCopy)
110 return SS.CopyRelSec->getParent()->Addr + SS.CopyRelSec->OutSecOff +
111 SS.CopyRelSecOff;
112 if (SS.NeedsPltAddr)105 if (SS.NeedsPltAddr)
113 return Body.getPltVA();106 return Sym.getPltVA();
114 return 0;107 return 0;
115 }108 }
116 case SymbolBody::UndefinedKind:109 case Symbol::UndefinedKind:
117 return 0;110 return 0;
118 case SymbolBody::LazyArchiveKind:111 case Symbol::LazyArchiveKind:
119 case SymbolBody::LazyObjectKind:112 case Symbol::LazyObjectKind:
120 assert(Body.symbol()->IsUsedInRegularObj && "lazy symbol reached writer");113 assert(Sym.IsUsedInRegularObj && "lazy symbol reached writer");
121 return 0;114 return 0;
122 }115 }
123 llvm_unreachable("invalid symbol kind");116 llvm_unreachable("invalid symbol kind");
124}117}
125118
126SymbolBody::SymbolBody(Kind K, StringRefZ Name, bool IsLocal, uint8_t StOther,119uint64_t Symbol::getVA(int64_t Addend) const {
127 uint8_t Type)
128 : SymbolKind(K), NeedsCopy(false), NeedsPltAddr(false), IsLocal(IsLocal),
129 IsInGlobalMipsGot(false), Is32BitMipsGot(false), IsInIplt(false),
130 IsInIgot(false), Type(Type), StOther(StOther), Name(Name) {}
131
132// Returns true if a symbol can be replaced at load-time by a symbol
133// with the same name defined in other ELF executable or DSO.
134bool SymbolBody::isPreemptible() const {
135 if (isLocal())
136 return false;
137
138 // Shared symbols resolve to the definition in the DSO. The exceptions are
139 // symbols with copy relocations (which resolve to .bss) or preempt plt
140 // entries (which resolve to that plt entry).
141 if (isShared())
142 return !NeedsCopy && !NeedsPltAddr;
143
144 // That's all that can be preempted in a non-DSO.
145 if (!Config->Shared)
146 return false;
147
148 // Only symbols that appear in dynsym can be preempted.
149 if (!symbol()->includeInDynsym())
150 return false;
151
152 // Only default visibility symbols can be preempted.
153 if (symbol()->Visibility != STV_DEFAULT)
154 return false;
155
156 // -Bsymbolic means that definitions are not preempted.
157 if (Config->Bsymbolic || (Config->BsymbolicFunctions && isFunc()))
158 return !isDefined();
159 return true;
160}
161
162// Overwrites all attributes with Other's so that this symbol becomes
163// an alias to Other. This is useful for handling some options such as
164// --wrap.
165void SymbolBody::copy(SymbolBody *Other) {
166 memcpy(symbol()->Body.buffer, Other->symbol()->Body.buffer,
167 sizeof(Symbol::Body));
168}
169
170uint64_t SymbolBody::getVA(int64_t Addend) const {
171 uint64_t OutVA = getSymVA(*this, Addend);120 uint64_t OutVA = getSymVA(*this, Addend);
172 return OutVA + Addend;121 return OutVA + Addend;
173}122}
174123
175uint64_t SymbolBody::getGotVA() const {124uint64_t Symbol::getGotVA() const { return InX::Got->getVA() + getGotOffset(); }
176 return InX::Got->getVA() + getGotOffset();
177}
178125
179uint64_t SymbolBody::getGotOffset() const {126uint64_t Symbol::getGotOffset() const {
180 return GotIndex * Target->GotEntrySize;127 return GotIndex * Target->GotEntrySize;
181}128}
182129
183uint64_t SymbolBody::getGotPltVA() const {130uint64_t Symbol::getGotPltVA() const {
184 if (this->IsInIgot)131 if (this->IsInIgot)
185 return InX::IgotPlt->getVA() + getGotPltOffset();132 return InX::IgotPlt->getVA() + getGotPltOffset();
186 return InX::GotPlt->getVA() + getGotPltOffset();133 return InX::GotPlt->getVA() + getGotPltOffset();
187}134}
188135
189uint64_t SymbolBody::getGotPltOffset() const {136uint64_t Symbol::getGotPltOffset() const {
190 return GotPltIndex * Target->GotPltEntrySize;137 return GotPltIndex * Target->GotPltEntrySize;
191}138}
192139
193uint64_t SymbolBody::getPltVA() const {140uint64_t Symbol::getPltVA() const {
194 if (this->IsInIplt)141 if (this->IsInIplt)
195 return InX::Iplt->getVA() + PltIndex * Target->PltEntrySize;142 return InX::Iplt->getVA() + PltIndex * Target->PltEntrySize;
196 return InX::Plt->getVA() + Target->PltHeaderSize +143 return InX::Plt->getVA() + Target->PltHeaderSize +
197 PltIndex * Target->PltEntrySize;144 PltIndex * Target->PltEntrySize;
198}145}
199146
200template <class ELFT> typename ELFT::uint SymbolBody::getSize() const {147uint64_t Symbol::getSize() const {
201 if (const auto *C = dyn_cast<DefinedCommon>(this))148 if (const auto *DR = dyn_cast<Defined>(this))
202 return C->Size;
203 if (const auto *DR = dyn_cast<DefinedRegular>(this))
204 return DR->Size;149 return DR->Size;
205 if (const auto *S = dyn_cast<SharedSymbol>(this))150 if (const auto *S = dyn_cast<SharedSymbol>(this))
206 return S->getSize<ELFT>();151 return S->Size;
207 return 0;152 return 0;
208}153}
209154
210OutputSection *SymbolBody::getOutputSection() const {155OutputSection *Symbol::getOutputSection() const {
211 if (auto *S = dyn_cast<DefinedRegular>(this)) {156 if (auto *S = dyn_cast<Defined>(this)) {
212 if (S->Section)157 if (auto *Sec = S->Section)
213 return S->Section->getOutputSection();158 return Sec->Repl->getOutputSection();
214 return nullptr;159 return nullptr;
215 }160 }
216161
217 if (auto *S = dyn_cast<SharedSymbol>(this)) {162 if (auto *S = dyn_cast<SharedSymbol>(this)) {
218 if (S->NeedsCopy)163 if (S->CopyRelSec)
219 return S->CopyRelSec->getParent();164 return S->CopyRelSec->getParent();
220 return nullptr;165 return nullptr;
221 }166 }
222167
223 if (isa<DefinedCommon>(this)) {
224 if (Config->DefineCommon)
225 return InX::Common->getParent();
226 return nullptr;
227 }
228
229 return nullptr;168 return nullptr;
230}169}
231170
232// If a symbol name contains '@', the characters after that is171// If a symbol name contains '@', the characters after that is
233// a symbol version name. This function parses that.172// a symbol version name. This function parses that.
234void SymbolBody::parseSymbolVersion() {173void Symbol::parseSymbolVersion() {
235 StringRef S = getName();174 StringRef S = getName();
236 size_t Pos = S.find('@');175 size_t Pos = S.find('@');
237 if (Pos == 0 || Pos == StringRef::npos)176 if (Pos == 0 || Pos == StringRef::npos)
...@@ -244,7 +183,7 @@ void SymbolBody::parseSymbolVersion() {...@@ -244,7 +183,7 @@ void SymbolBody::parseSymbolVersion() {
244 Name = {S.data(), Pos};183 Name = {S.data(), Pos};
245184
246 // If this is not in this DSO, it is not a definition.185 // If this is not in this DSO, it is not a definition.
247 if (!isInCurrentDSO())186 if (!isDefined())
248 return;187 return;
249188
250 // '@@' in a symbol name means the default version.189 // '@@' in a symbol name means the default version.
...@@ -258,9 +197,9 @@ void SymbolBody::parseSymbolVersion() {...@@ -258,9 +197,9 @@ void SymbolBody::parseSymbolVersion() {
258 continue;197 continue;
259198
260 if (IsDefault)199 if (IsDefault)
261 symbol()->VersionId = Ver.Id;200 VersionId = Ver.Id;
262 else201 else
263 symbol()->VersionId = Ver.Id | VERSYM_HIDDEN;202 VersionId = Ver.Id | VERSYM_HIDDEN;
264 return;203 return;
265 }204 }
266205
...@@ -273,81 +212,34 @@ void SymbolBody::parseSymbolVersion() {...@@ -273,81 +212,34 @@ void SymbolBody::parseSymbolVersion() {
273 Verstr);212 Verstr);
274}213}
275214
276Defined::Defined(Kind K, StringRefZ Name, bool IsLocal, uint8_t StOther,
277 uint8_t Type)
278 : SymbolBody(K, Name, IsLocal, StOther, Type) {}
279
280template <class ELFT> bool DefinedRegular::isMipsPIC() const {
281 typedef typename ELFT::Ehdr Elf_Ehdr;
282 if (!Section || !isFunc())
283 return false;
284
285 auto *Sec = cast<InputSectionBase>(Section);
286 const Elf_Ehdr *Hdr = Sec->template getFile<ELFT>()->getObj().getHeader();
287 return (this->StOther & STO_MIPS_MIPS16) == STO_MIPS_PIC ||
288 (Hdr->e_flags & EF_MIPS_PIC);
289}
290
291Undefined::Undefined(StringRefZ Name, bool IsLocal, uint8_t StOther,
292 uint8_t Type, InputFile *File)
293 : SymbolBody(SymbolBody::UndefinedKind, Name, IsLocal, StOther, Type) {
294 this->File = File;
295}
296
297DefinedCommon::DefinedCommon(StringRef Name, uint64_t Size, uint32_t Alignment,
298 uint8_t StOther, uint8_t Type, InputFile *File)
299 : Defined(SymbolBody::DefinedCommonKind, Name, /*IsLocal=*/false, StOther,
300 Type),
301 Alignment(Alignment), Size(Size) {
302 this->File = File;
303}
304
305// If a shared symbol is referred via a copy relocation, its alignment
306// becomes part of the ABI. This function returns a symbol alignment.
307// Because symbols don't have alignment attributes, we need to infer that.
308template <class ELFT> uint32_t SharedSymbol::getAlignment() const {
309 auto *File = cast<SharedFile<ELFT>>(this->File);
310 uint32_t SecAlign = File->getSection(getSym<ELFT>())->sh_addralign;
311 uint64_t SymValue = getSym<ELFT>().st_value;
312 uint32_t SymAlign = uint32_t(1) << countTrailingZeros(SymValue);
313 return std::min(SecAlign, SymAlign);
314}
315
316InputFile *Lazy::fetch() {215InputFile *Lazy::fetch() {
317 if (auto *S = dyn_cast<LazyArchive>(this))216 if (auto *S = dyn_cast<LazyArchive>(this))
318 return S->fetch();217 return S->fetch();
319 return cast<LazyObject>(this)->fetch();218 return cast<LazyObject>(this)->fetch();
320}219}
321220
322LazyArchive::LazyArchive(ArchiveFile &File,221ArchiveFile &LazyArchive::getFile() { return *cast<ArchiveFile>(File); }
323 const llvm::object::Archive::Symbol S, uint8_t Type)
324 : Lazy(LazyArchiveKind, S.getName(), Type), Sym(S) {
325 this->File = &File;
326}
327
328LazyObject::LazyObject(StringRef Name, LazyObjectFile &File, uint8_t Type)
329 : Lazy(LazyObjectKind, Name, Type) {
330 this->File = &File;
331}
332222
333InputFile *LazyArchive::fetch() {223InputFile *LazyArchive::fetch() {
334 std::pair<MemoryBufferRef, uint64_t> MBInfo = file()->getMember(&Sym);224 std::pair<MemoryBufferRef, uint64_t> MBInfo = getFile().getMember(&Sym);
335225
336 // getMember returns an empty buffer if the member was already226 // getMember returns an empty buffer if the member was already
337 // read from the library.227 // read from the library.
338 if (MBInfo.first.getBuffer().empty())228 if (MBInfo.first.getBuffer().empty())
339 return nullptr;229 return nullptr;
340 return createObjectFile(MBInfo.first, file()->getName(), MBInfo.second);230 return createObjectFile(MBInfo.first, getFile().getName(), MBInfo.second);
341}231}
342232
343InputFile *LazyObject::fetch() { return file()->fetch(); }233LazyObjFile &LazyObject::getFile() { return *cast<LazyObjFile>(File); }
234
235InputFile *LazyObject::fetch() { return getFile().fetch(); }
344236
345uint8_t Symbol::computeBinding() const {237uint8_t Symbol::computeBinding() const {
346 if (Config->Relocatable)238 if (Config->Relocatable)
347 return Binding;239 return Binding;
348 if (Visibility != STV_DEFAULT && Visibility != STV_PROTECTED)240 if (Visibility != STV_DEFAULT && Visibility != STV_PROTECTED)
349 return STB_LOCAL;241 return STB_LOCAL;
350 if (VersionId == VER_NDX_LOCAL && body()->isInCurrentDSO())242 if (VersionId == VER_NDX_LOCAL && isDefined())
351 return STB_LOCAL;243 return STB_LOCAL;
352 if (Config->NoGnuUnique && Binding == STB_GNU_UNIQUE)244 if (Config->NoGnuUnique && Binding == STB_GNU_UNIQUE)
353 return STB_GLOBAL;245 return STB_GLOBAL;
...@@ -355,45 +247,36 @@ uint8_t Symbol::computeBinding() const {...@@ -355,45 +247,36 @@ uint8_t Symbol::computeBinding() const {
355}247}
356248
357bool Symbol::includeInDynsym() const {249bool Symbol::includeInDynsym() const {
250 if (!Config->HasDynSymTab)
251 return false;
358 if (computeBinding() == STB_LOCAL)252 if (computeBinding() == STB_LOCAL)
359 return false;253 return false;
360 return ExportDynamic || body()->isShared() ||254 if (!isDefined())
361 (body()->isUndefined() && Config->Shared);255 return true;
256 return ExportDynamic;
362}257}
363258
364// Print out a log message for --trace-symbol.259// Print out a log message for --trace-symbol.
365void elf::printTraceSymbol(Symbol *Sym) {260void elf::printTraceSymbol(Symbol *Sym) {
366 SymbolBody *B = Sym->body();
367 std::string S;261 std::string S;
368 if (B->isUndefined())262 if (Sym->isUndefined())
369 S = ": reference to ";263 S = ": reference to ";
370 else if (B->isCommon())264 else if (Sym->isLazy())
265 S = ": lazy definition of ";
266 else if (Sym->isShared())
267 S = ": shared definition of ";
268 else if (dyn_cast_or_null<BssSection>(cast<Defined>(Sym)->Section))
371 S = ": common definition of ";269 S = ": common definition of ";
372 else270 else
373 S = ": definition of ";271 S = ": definition of ";
374272
375 message(toString(B->File) + S + B->getName());273 message(toString(Sym->File) + S + Sym->getName());
376}274}
377275
378// Returns a symbol for an error message.276// Returns a symbol for an error message.
379std::string lld::toString(const SymbolBody &B) {277std::string lld::toString(const Symbol &B) {
380 if (Config->Demangle)278 if (Config->Demangle)
381 if (Optional<std::string> S = demangle(B.getName()))279 if (Optional<std::string> S = demangleItanium(B.getName()))
382 return *S;280 return *S;
383 return B.getName();281 return B.getName();
384}282}
385
386template uint32_t SymbolBody::template getSize<ELF32LE>() const;
387template uint32_t SymbolBody::template getSize<ELF32BE>() const;
388template uint64_t SymbolBody::template getSize<ELF64LE>() const;
389template uint64_t SymbolBody::template getSize<ELF64BE>() const;
390
391template bool DefinedRegular::template isMipsPIC<ELF32LE>() const;
392template bool DefinedRegular::template isMipsPIC<ELF32BE>() const;
393template bool DefinedRegular::template isMipsPIC<ELF64LE>() const;
394template bool DefinedRegular::template isMipsPIC<ELF64BE>() const;
395
396template uint32_t SharedSymbol::template getAlignment<ELF32LE>() const;
397template uint32_t SharedSymbol::template getAlignment<ELF32BE>() const;
398template uint32_t SharedSymbol::template getAlignment<ELF64LE>() const;
399template uint32_t SharedSymbol::template getAlignment<ELF64BE>() const;
deps/lld/ELF/Symbols.h+184-216
...@@ -18,7 +18,7 @@...@@ -18,7 +18,7 @@
18#include "InputSection.h"18#include "InputSection.h"
19#include "Strings.h"19#include "Strings.h"
2020
21#include "lld/Core/LLVM.h"21#include "lld/Common/LLVM.h"
22#include "llvm/Object/Archive.h"22#include "llvm/Object/Archive.h"
23#include "llvm/Object/ELF.h"23#include "llvm/Object/ELF.h"
2424
...@@ -27,53 +27,89 @@ namespace elf {...@@ -27,53 +27,89 @@ namespace elf {
2727
28class ArchiveFile;28class ArchiveFile;
29class BitcodeFile;29class BitcodeFile;
30class BssSection;
30class InputFile;31class InputFile;
31class LazyObjectFile;32class LazyObjFile;
32template <class ELFT> class ObjectFile;33template <class ELFT> class ObjFile;
33class OutputSection;34class OutputSection;
34template <class ELFT> class SharedFile;35template <class ELFT> class SharedFile;
3536
36struct Symbol;
37
38// The base class for real symbol classes.37// The base class for real symbol classes.
39class SymbolBody {38class Symbol {
40public:39public:
41 enum Kind {40 enum Kind {
42 DefinedFirst,41 DefinedKind,
43 DefinedRegularKind = DefinedFirst,
44 SharedKind,42 SharedKind,
45 DefinedCommonKind,
46 DefinedLast = DefinedCommonKind,
47 UndefinedKind,43 UndefinedKind,
48 LazyArchiveKind,44 LazyArchiveKind,
49 LazyObjectKind,45 LazyObjectKind,
50 };46 };
5147
52 SymbolBody(Kind K) : SymbolKind(K) {}48 Kind kind() const { return static_cast<Kind>(SymbolKind); }
5349
54 Symbol *symbol();50 // Symbol binding. This is not overwritten by replaceSymbol to track
55 const Symbol *symbol() const {51 // changes during resolution. In particular:
56 return const_cast<SymbolBody *>(this)->symbol();52 // - An undefined weak is still weak when it resolves to a shared library.
57 }53 // - An undefined weak will not fetch archive members, but we have to
54 // remember it is weak.
55 uint8_t Binding;
5856
59 Kind kind() const { return static_cast<Kind>(SymbolKind); }57 // Version definition index.
58 uint16_t VersionId;
59
60 // Symbol visibility. This is the computed minimum visibility of all
61 // observed non-DSO symbols.
62 unsigned Visibility : 2;
63
64 // True if the symbol was used for linking and thus need to be added to the
65 // output file's symbol table. This is true for all symbols except for
66 // unreferenced DSO symbols and bitcode symbols that are unreferenced except
67 // by other bitcode objects.
68 unsigned IsUsedInRegularObj : 1;
69
70 // If this flag is true and the symbol has protected or default visibility, it
71 // will appear in .dynsym. This flag is set by interposable DSO symbols in
72 // executables, by most symbols in DSOs and executables built with
73 // --export-dynamic, and by dynamic lists.
74 unsigned ExportDynamic : 1;
75
76 // False if LTO shouldn't inline whatever this symbol points to. If a symbol
77 // is overwritten after LTO, LTO shouldn't inline the symbol because it
78 // doesn't know the final contents of the symbol.
79 unsigned CanInline : 1;
80
81 // True if this symbol is specified by --trace-symbol option.
82 unsigned Traced : 1;
83
84 // This symbol version was found in a version script.
85 unsigned InVersionScript : 1;
86
87 // The file from which this symbol was created.
88 InputFile *File;
89
90 bool includeInDynsym() const;
91 uint8_t computeBinding() const;
92 bool isWeak() const { return Binding == llvm::ELF::STB_WEAK; }
6093
61 bool isUndefined() const { return SymbolKind == UndefinedKind; }94 bool isUndefined() const { return SymbolKind == UndefinedKind; }
62 bool isDefined() const { return SymbolKind <= DefinedLast; }95 bool isDefined() const { return SymbolKind == DefinedKind; }
63 bool isCommon() const { return SymbolKind == DefinedCommonKind; }96 bool isShared() const { return SymbolKind == SharedKind; }
97 bool isLocal() const { return Binding == llvm::ELF::STB_LOCAL; }
98
64 bool isLazy() const {99 bool isLazy() const {
65 return SymbolKind == LazyArchiveKind || SymbolKind == LazyObjectKind;100 return SymbolKind == LazyArchiveKind || SymbolKind == LazyObjectKind;
66 }101 }
67 bool isShared() const { return SymbolKind == SharedKind; }102
68 bool isInCurrentDSO() const {103 // True is this is an undefined weak symbol. This only works once
69 return !isUndefined() && !isShared() && !isLazy();104 // all input files have been added.
105 bool isUndefWeak() const {
106 // See comment on Lazy the details.
107 return isWeak() && (isUndefined() || isLazy());
70 }108 }
71 bool isLocal() const { return IsLocal; }109
72 bool isPreemptible() const;
73 StringRef getName() const { return Name; }110 StringRef getName() const { return Name; }
74 uint8_t getVisibility() const { return StOther & 0x3; }111 uint8_t getVisibility() const { return StOther & 0x3; }
75 void parseSymbolVersion();112 void parseSymbolVersion();
76 void copy(SymbolBody *Other);
77113
78 bool isInGot() const { return GotIndex != -1U; }114 bool isInGot() const { return GotIndex != -1U; }
79 bool isInPlt() const { return PltIndex != -1U; }115 bool isInPlt() const { return PltIndex != -1U; }
...@@ -85,12 +121,9 @@ public:...@@ -85,12 +121,9 @@ public:
85 uint64_t getGotPltOffset() const;121 uint64_t getGotPltOffset() const;
86 uint64_t getGotPltVA() const;122 uint64_t getGotPltVA() const;
87 uint64_t getPltVA() const;123 uint64_t getPltVA() const;
88 template <class ELFT> typename ELFT::uint getSize() const;124 uint64_t getSize() const;
89 OutputSection *getOutputSection() const;125 OutputSection *getOutputSection() const;
90126
91 // The file from which this symbol was created.
92 InputFile *File = nullptr;
93
94 uint32_t DynsymIndex = 0;127 uint32_t DynsymIndex = 0;
95 uint32_t GotIndex = -1;128 uint32_t GotIndex = -1;
96 uint32_t GotPltIndex = -1;129 uint32_t GotPltIndex = -1;
...@@ -98,23 +131,19 @@ public:...@@ -98,23 +131,19 @@ public:
98 uint32_t GlobalDynIndex = -1;131 uint32_t GlobalDynIndex = -1;
99132
100protected:133protected:
101 SymbolBody(Kind K, StringRefZ Name, bool IsLocal, uint8_t StOther,134 Symbol(Kind K, InputFile *File, StringRefZ Name, uint8_t Binding,
102 uint8_t Type);135 uint8_t StOther, uint8_t Type)
136 : Binding(Binding), File(File), SymbolKind(K), NeedsPltAddr(false),
137 IsInGlobalMipsGot(false), Is32BitMipsGot(false), IsInIplt(false),
138 IsInIgot(false), IsPreemptible(false), Used(!Config->GcSections),
139 Type(Type), StOther(StOther), Name(Name) {}
103140
104 const unsigned SymbolKind : 8;141 const unsigned SymbolKind : 8;
105142
106public:143public:
107 // True if the linker has to generate a copy relocation.
108 // For SharedSymbol only.
109 unsigned NeedsCopy : 1;
110
111 // True the symbol should point to its PLT entry.144 // True the symbol should point to its PLT entry.
112 // For SharedSymbol only.145 // For SharedSymbol only.
113 unsigned NeedsPltAddr : 1;146 unsigned NeedsPltAddr : 1;
114
115 // True if this is a local symbol.
116 unsigned IsLocal : 1;
117
118 // True if this symbol has an entry in the global part of MIPS GOT.147 // True if this symbol has an entry in the global part of MIPS GOT.
119 unsigned IsInGlobalMipsGot : 1;148 unsigned IsInGlobalMipsGot : 1;
120149
...@@ -127,6 +156,11 @@ public:...@@ -127,6 +156,11 @@ public:
127 // True if this symbol is in the Igot sub-section of the .got.plt or .got.156 // True if this symbol is in the Igot sub-section of the .got.plt or .got.
128 unsigned IsInIgot : 1;157 unsigned IsInIgot : 1;
129158
159 unsigned IsPreemptible : 1;
160
161 // True if an undefined or shared symbol is used from a live section.
162 unsigned Used : 1;
163
130 // The following fields have the same meaning as the ELF symbol attributes.164 // The following fields have the same meaning as the ELF symbol attributes.
131 uint8_t Type; // symbol type165 uint8_t Type; // symbol type
132 uint8_t StOther; // st_other field value166 uint8_t StOther; // st_other field value
...@@ -149,139 +183,111 @@ protected:...@@ -149,139 +183,111 @@ protected:
149 StringRefZ Name;183 StringRefZ Name;
150};184};
151185
152// The base class for any defined symbols.186// Represents a symbol that is defined in the current output file.
153class Defined : public SymbolBody {187class Defined : public Symbol {
154public:
155 Defined(Kind K, StringRefZ Name, bool IsLocal, uint8_t StOther, uint8_t Type);
156 static bool classof(const SymbolBody *S) { return S->isDefined(); }
157};
158
159class DefinedCommon : public Defined {
160public:188public:
161 DefinedCommon(StringRef N, uint64_t Size, uint32_t Alignment, uint8_t StOther,189 Defined(InputFile *File, StringRefZ Name, uint8_t Binding, uint8_t StOther,
162 uint8_t Type, InputFile *File);190 uint8_t Type, uint64_t Value, uint64_t Size, SectionBase *Section)
163191 : Symbol(DefinedKind, File, Name, Binding, StOther, Type), Value(Value),
164 static bool classof(const SymbolBody *S) {192 Size(Size), Section(Section) {}
165 return S->kind() == SymbolBody::DefinedCommonKind;
166 }
167193
168 // The output offset of this common symbol in the output bss. Computed by the194 static bool classof(const Symbol *S) { return S->isDefined(); }
169 // writer.
170 uint64_t Offset;
171
172 // The maximum alignment we have seen for this symbol.
173 uint32_t Alignment;
174
175 uint64_t Size;
176};
177
178// Regular defined symbols read from object file symbol tables.
179class DefinedRegular : public Defined {
180public:
181 DefinedRegular(StringRefZ Name, bool IsLocal, uint8_t StOther, uint8_t Type,
182 uint64_t Value, uint64_t Size, SectionBase *Section,
183 InputFile *File)
184 : Defined(SymbolBody::DefinedRegularKind, Name, IsLocal, StOther, Type),
185 Value(Value), Size(Size), Section(Section) {
186 this->File = File;
187 }
188
189 // Return true if the symbol is a PIC function.
190 template <class ELFT> bool isMipsPIC() const;
191
192 static bool classof(const SymbolBody *S) {
193 return S->kind() == SymbolBody::DefinedRegularKind;
194 }
195195
196 uint64_t Value;196 uint64_t Value;
197 uint64_t Size;197 uint64_t Size;
198 SectionBase *Section;198 SectionBase *Section;
199};199};
200200
201class Undefined : public SymbolBody {201class Undefined : public Symbol {
202public:202public:
203 Undefined(StringRefZ Name, bool IsLocal, uint8_t StOther, uint8_t Type,203 Undefined(InputFile *File, StringRefZ Name, uint8_t Binding, uint8_t StOther,
204 InputFile *F);204 uint8_t Type)
205 : Symbol(UndefinedKind, File, Name, Binding, StOther, Type) {}
205206
206 static bool classof(const SymbolBody *S) {207 static bool classof(const Symbol *S) { return S->kind() == UndefinedKind; }
207 return S->kind() == UndefinedKind;
208 }
209};208};
210209
211class SharedSymbol : public Defined {210class SharedSymbol : public Symbol {
212public:211public:
213 static bool classof(const SymbolBody *S) {212 static bool classof(const Symbol *S) { return S->kind() == SharedKind; }
214 return S->kind() == SymbolBody::SharedKind;213
215 }214 SharedSymbol(InputFile &File, StringRef Name, uint8_t Binding,
216215 uint8_t StOther, uint8_t Type, uint64_t Value, uint64_t Size,
217 SharedSymbol(InputFile *File, StringRef Name, uint8_t StOther, uint8_t Type,216 uint32_t Alignment, uint32_t VerdefIndex)
218 const void *ElfSym, const void *Verdef)217 : Symbol(SharedKind, &File, Name, Binding, StOther, Type), Value(Value),
219 : Defined(SymbolBody::SharedKind, Name, /*IsLocal=*/false, StOther, Type),218 Size(Size), VerdefIndex(VerdefIndex), Alignment(Alignment) {
220 Verdef(Verdef), ElfSym(ElfSym) {219 // GNU ifunc is a mechanism to allow user-supplied functions to
221 // IFuncs defined in DSOs are treated as functions by the static linker.220 // resolve PLT slot values at load-time. This is contrary to the
222 if (isGnuIFunc())221 // regular symbol resolution scheme in which symbols are resolved just
222 // by name. Using this hook, you can program how symbols are solved
223 // for you program. For example, you can make "memcpy" to be resolved
224 // to a SSE-enabled version of memcpy only when a machine running the
225 // program supports the SSE instruction set.
226 //
227 // Naturally, such symbols should always be called through their PLT
228 // slots. What GNU ifunc symbols point to are resolver functions, and
229 // calling them directly doesn't make sense (unless you are writing a
230 // loader).
231 //
232 // For DSO symbols, we always call them through PLT slots anyway.
233 // So there's no difference between GNU ifunc and regular function
234 // symbols if they are in DSOs. So we can handle GNU_IFUNC as FUNC.
235 if (this->Type == llvm::ELF::STT_GNU_IFUNC)
223 this->Type = llvm::ELF::STT_FUNC;236 this->Type = llvm::ELF::STT_FUNC;
224 this->File = File;
225 }237 }
226238
227 template <class ELFT> uint64_t getShndx() const {239 template <class ELFT> SharedFile<ELFT> &getFile() const {
228 return getSym<ELFT>().st_shndx;240 return *cast<SharedFile<ELFT>>(File);
229 }241 }
230242
231 template <class ELFT> uint64_t getValue() const {243 // If not null, there is a copy relocation to this section.
232 return getSym<ELFT>().st_value;244 InputSection *CopyRelSec = nullptr;
233 }
234245
235 template <class ELFT> uint64_t getSize() const {246 uint64_t Value; // st_value
236 return getSym<ELFT>().st_size;247 uint64_t Size; // st_size
237 }
238
239 template <class ELFT> uint32_t getAlignment() const;
240248
241 // This field is a pointer to the symbol's version definition.249 // This field is a index to the symbol's version definition.
242 const void *Verdef;250 uint32_t VerdefIndex;
243251
244 // CopyRelSec and CopyRelSecOff are significant only when NeedsCopy is true.252 uint32_t Alignment;
245 InputSection *CopyRelSec;
246 uint64_t CopyRelSecOff;
247
248private:
249 template <class ELFT> const typename ELFT::Sym &getSym() const {
250 return *(const typename ELFT::Sym *)ElfSym;
251 }
252
253 const void *ElfSym;
254};253};
255254
256// This class represents a symbol defined in an archive file. It is255// This represents a symbol that is not yet in the link, but we know where to
257// created from an archive file header, and it knows how to load an256// find it if needed. If the resolver finds both Undefined and Lazy for the same
258// object file from an archive to replace itself with a defined257// name, it will ask the Lazy to load a file.
259// symbol. If the resolver finds both Undefined and Lazy for258//
260// the same name, it will ask the Lazy to load a file.259// A special complication is the handling of weak undefined symbols. They should
261class Lazy : public SymbolBody {260// not load a file, but we have to remember we have seen both the weak undefined
261// and the lazy. We represent that with a lazy symbol with a weak binding. This
262// means that code looking for undefined symbols normally also has to take lazy
263// symbols into consideration.
264class Lazy : public Symbol {
262public:265public:
263 static bool classof(const SymbolBody *S) { return S->isLazy(); }266 static bool classof(const Symbol *S) { return S->isLazy(); }
264267
265 // Returns an object file for this symbol, or a nullptr if the file268 // Returns an object file for this symbol, or a nullptr if the file
266 // was already returned.269 // was already returned.
267 InputFile *fetch();270 InputFile *fetch();
268271
269protected:272protected:
270 Lazy(SymbolBody::Kind K, StringRef Name, uint8_t Type)273 Lazy(Kind K, InputFile &File, StringRef Name, uint8_t Type)
271 : SymbolBody(K, Name, /*IsLocal=*/false, llvm::ELF::STV_DEFAULT, Type) {}274 : Symbol(K, &File, Name, llvm::ELF::STB_GLOBAL, llvm::ELF::STV_DEFAULT,
275 Type) {}
272};276};
273277
274// LazyArchive symbols represents symbols in archive files.278// This class represents a symbol defined in an archive file. It is
279// created from an archive file header, and it knows how to load an
280// object file from an archive to replace itself with a defined
281// symbol.
275class LazyArchive : public Lazy {282class LazyArchive : public Lazy {
276public:283public:
277 LazyArchive(ArchiveFile &File, const llvm::object::Archive::Symbol S,284 LazyArchive(InputFile &File, const llvm::object::Archive::Symbol S,
278 uint8_t Type);285 uint8_t Type)
286 : Lazy(LazyArchiveKind, File, S.getName(), Type), Sym(S) {}
279287
280 static bool classof(const SymbolBody *S) {288 static bool classof(const Symbol *S) { return S->kind() == LazyArchiveKind; }
281 return S->kind() == LazyArchiveKind;
282 }
283289
284 ArchiveFile *file() { return (ArchiveFile *)this->File; }290 ArchiveFile &getFile();
285 InputFile *fetch();291 InputFile *fetch();
286292
287private:293private:
...@@ -292,123 +298,85 @@ private:...@@ -292,123 +298,85 @@ private:
292// --start-lib and --end-lib options.298// --start-lib and --end-lib options.
293class LazyObject : public Lazy {299class LazyObject : public Lazy {
294public:300public:
295 LazyObject(StringRef Name, LazyObjectFile &File, uint8_t Type);301 LazyObject(InputFile &File, StringRef Name, uint8_t Type)
302 : Lazy(LazyObjectKind, File, Name, Type) {}
296303
297 static bool classof(const SymbolBody *S) {304 static bool classof(const Symbol *S) { return S->kind() == LazyObjectKind; }
298 return S->kind() == LazyObjectKind;
299 }
300305
301 LazyObjectFile *file() { return (LazyObjectFile *)this->File; }306 LazyObjFile &getFile();
302 InputFile *fetch();307 InputFile *fetch();
303};308};
304309
305// Some linker-generated symbols need to be created as310// Some linker-generated symbols need to be created as
306// DefinedRegular symbols.311// Defined symbols.
307struct ElfSym {312struct ElfSym {
308 // __bss_start313 // __bss_start
309 static DefinedRegular *Bss;314 static Defined *Bss;
310315
311 // etext and _etext316 // etext and _etext
312 static DefinedRegular *Etext1;317 static Defined *Etext1;
313 static DefinedRegular *Etext2;318 static Defined *Etext2;
314319
315 // edata and _edata320 // edata and _edata
316 static DefinedRegular *Edata1;321 static Defined *Edata1;
317 static DefinedRegular *Edata2;322 static Defined *Edata2;
318323
319 // end and _end324 // end and _end
320 static DefinedRegular *End1;325 static Defined *End1;
321 static DefinedRegular *End2;326 static Defined *End2;
322327
323 // The _GLOBAL_OFFSET_TABLE_ symbol is defined by target convention to328 // The _GLOBAL_OFFSET_TABLE_ symbol is defined by target convention to
324 // be at some offset from the base of the .got section, usually 0 or329 // be at some offset from the base of the .got section, usually 0 or
325 // the end of the .got.330 // the end of the .got.
326 static DefinedRegular *GlobalOffsetTable;331 static Defined *GlobalOffsetTable;
327332
328 // _gp, _gp_disp and __gnu_local_gp symbols. Only for MIPS.333 // _gp, _gp_disp and __gnu_local_gp symbols. Only for MIPS.
329 static DefinedRegular *MipsGp;334 static Defined *MipsGp;
330 static DefinedRegular *MipsGpDisp;335 static Defined *MipsGpDisp;
331 static DefinedRegular *MipsLocalGp;336 static Defined *MipsLocalGp;
332};337};
333338
334// A real symbol object, SymbolBody, is usually stored within a Symbol. There's339// A buffer class that is large enough to hold any Symbol-derived
335// always one Symbol for each symbol name. The resolver updates the SymbolBody340// object. We allocate memory using this class and instantiate a symbol
336// stored in the Body field of this object as it resolves symbols. Symbol also341// using the placement new.
337// holds computed properties of symbol names.342union SymbolUnion {
338struct Symbol {343 alignas(Defined) char A[sizeof(Defined)];
339 // Symbol binding. This is on the Symbol to track changes during resolution.344 alignas(Undefined) char C[sizeof(Undefined)];
340 // In particular:345 alignas(SharedSymbol) char D[sizeof(SharedSymbol)];
341 // An undefined weak is still weak when it resolves to a shared library.346 alignas(LazyArchive) char E[sizeof(LazyArchive)];
342 // An undefined weak will not fetch archive members, but we have to remember347 alignas(LazyObject) char F[sizeof(LazyObject)];
343 // it is weak.
344 uint8_t Binding;
345
346 // Version definition index.
347 uint16_t VersionId;
348
349 // Symbol visibility. This is the computed minimum visibility of all
350 // observed non-DSO symbols.
351 unsigned Visibility : 2;
352
353 // True if the symbol was used for linking and thus need to be added to the
354 // output file's symbol table. This is true for all symbols except for
355 // unreferenced DSO symbols and bitcode symbols that are unreferenced except
356 // by other bitcode objects.
357 unsigned IsUsedInRegularObj : 1;
358
359 // If this flag is true and the symbol has protected or default visibility, it
360 // will appear in .dynsym. This flag is set by interposable DSO symbols in
361 // executables, by most symbols in DSOs and executables built with
362 // --export-dynamic, and by dynamic lists.
363 unsigned ExportDynamic : 1;
364
365 // True if this symbol is specified by --trace-symbol option.
366 unsigned Traced : 1;
367
368 // This symbol version was found in a version script.
369 unsigned InVersionScript : 1;
370
371 bool includeInDynsym() const;
372 uint8_t computeBinding() const;
373 bool isWeak() const { return Binding == llvm::ELF::STB_WEAK; }
374
375 // This field is used to store the Symbol's SymbolBody. This instantiation of
376 // AlignedCharArrayUnion gives us a struct with a char array field that is
377 // large and aligned enough to store any derived class of SymbolBody.
378 llvm::AlignedCharArrayUnion<DefinedCommon, DefinedRegular, Undefined,
379 SharedSymbol, LazyArchive, LazyObject>
380 Body;
381
382 SymbolBody *body() { return reinterpret_cast<SymbolBody *>(Body.buffer); }
383 const SymbolBody *body() const { return const_cast<Symbol *>(this)->body(); }
384};348};
385349
386void printTraceSymbol(Symbol *Sym);350void printTraceSymbol(Symbol *Sym);
387351
388template <typename T, typename... ArgT>352template <typename T, typename... ArgT>
389void replaceBody(Symbol *S, ArgT &&... Arg) {353void replaceSymbol(Symbol *S, ArgT &&... Arg) {
390 static_assert(sizeof(T) <= sizeof(S->Body), "Body too small");354 static_assert(sizeof(T) <= sizeof(SymbolUnion), "SymbolUnion too small");
391 static_assert(alignof(T) <= alignof(decltype(S->Body)),355 static_assert(alignof(T) <= alignof(SymbolUnion),
392 "Body not aligned enough");356 "SymbolUnion not aligned enough");
393 assert(static_cast<SymbolBody *>(static_cast<T *>(nullptr)) == nullptr &&357 assert(static_cast<Symbol *>(static_cast<T *>(nullptr)) == nullptr &&
394 "Not a SymbolBody");358 "Not a Symbol");
359
360 Symbol Sym = *S;
395361
396 new (S->Body.buffer) T(std::forward<ArgT>(Arg)...);362 new (S) T(std::forward<ArgT>(Arg)...);
363
364 S->VersionId = Sym.VersionId;
365 S->Visibility = Sym.Visibility;
366 S->IsUsedInRegularObj = Sym.IsUsedInRegularObj;
367 S->ExportDynamic = Sym.ExportDynamic;
368 S->CanInline = Sym.CanInline;
369 S->Traced = Sym.Traced;
370 S->InVersionScript = Sym.InVersionScript;
397371
398 // Print out a log message if --trace-symbol was specified.372 // Print out a log message if --trace-symbol was specified.
399 // This is for debugging.373 // This is for debugging.
400 if (S->Traced)374 if (S->Traced)
401 printTraceSymbol(S);375 printTraceSymbol(S);
402}376}
403
404inline Symbol *SymbolBody::symbol() {
405 assert(!isLocal());
406 return reinterpret_cast<Symbol *>(reinterpret_cast<char *>(this) -
407 offsetof(Symbol, Body));
408}
409} // namespace elf377} // namespace elf
410378
411std::string toString(const elf::SymbolBody &B);379std::string toString(const elf::Symbol &B);
412} // namespace lld380} // namespace lld
413381
414#endif382#endif
deps/lld/ELF/SyntheticSections.cpp+967-705
...@@ -15,28 +15,32 @@...@@ -15,28 +15,32 @@
15//===----------------------------------------------------------------------===//15//===----------------------------------------------------------------------===//
1616
17#include "SyntheticSections.h"17#include "SyntheticSections.h"
18#include "Bits.h"
18#include "Config.h"19#include "Config.h"
19#include "Error.h"
20#include "InputFiles.h"20#include "InputFiles.h"
21#include "LinkerScript.h"21#include "LinkerScript.h"
22#include "Memory.h"
23#include "OutputSections.h"22#include "OutputSections.h"
24#include "Strings.h"23#include "Strings.h"
25#include "SymbolTable.h"24#include "SymbolTable.h"
25#include "Symbols.h"
26#include "Target.h"26#include "Target.h"
27#include "Threads.h"
28#include "Writer.h"27#include "Writer.h"
29#include "lld/Config/Version.h"28#include "lld/Common/ErrorHandler.h"
29#include "lld/Common/Memory.h"
30#include "lld/Common/Threads.h"
31#include "lld/Common/Version.h"
30#include "llvm/BinaryFormat/Dwarf.h"32#include "llvm/BinaryFormat/Dwarf.h"
31#include "llvm/DebugInfo/DWARF/DWARFDebugPubTable.h"33#include "llvm/DebugInfo/DWARF/DWARFDebugPubTable.h"
32#include "llvm/Object/Decompressor.h"34#include "llvm/Object/Decompressor.h"
33#include "llvm/Object/ELFObjectFile.h"35#include "llvm/Object/ELFObjectFile.h"
34#include "llvm/Support/Endian.h"36#include "llvm/Support/Endian.h"
37#include "llvm/Support/LEB128.h"
35#include "llvm/Support/MD5.h"38#include "llvm/Support/MD5.h"
36#include "llvm/Support/RandomNumberGenerator.h"39#include "llvm/Support/RandomNumberGenerator.h"
37#include "llvm/Support/SHA1.h"40#include "llvm/Support/SHA1.h"
38#include "llvm/Support/xxhash.h"41#include "llvm/Support/xxhash.h"
39#include <cstdlib>42#include <cstdlib>
43#include <thread>
4044
41using namespace llvm;45using namespace llvm;
42using namespace llvm::dwarf;46using namespace llvm::dwarf;
...@@ -48,41 +52,18 @@ using namespace llvm::support::endian;...@@ -48,41 +52,18 @@ using namespace llvm::support::endian;
48using namespace lld;52using namespace lld;
49using namespace lld::elf;53using namespace lld::elf;
5054
55constexpr size_t MergeNoTailSection::NumShards;
56
57static void write32(void *Buf, uint32_t Val) {
58 endian::write32(Buf, Val, Config->Endianness);
59}
60
51uint64_t SyntheticSection::getVA() const {61uint64_t SyntheticSection::getVA() const {
52 if (OutputSection *Sec = getParent())62 if (OutputSection *Sec = getParent())
53 return Sec->Addr + OutSecOff;63 return Sec->Addr + OutSecOff;
54 return 0;64 return 0;
55}65}
5666
57template <class ELFT> static std::vector<DefinedCommon *> getCommonSymbols() {
58 std::vector<DefinedCommon *> V;
59 for (Symbol *S : Symtab<ELFT>::X->getSymbols())
60 if (auto *B = dyn_cast<DefinedCommon>(S->body()))
61 V.push_back(B);
62 return V;
63}
64
65// Find all common symbols and allocate space for them.
66template <class ELFT> InputSection *elf::createCommonSection() {
67 if (!Config->DefineCommon)
68 return nullptr;
69
70 // Sort the common symbols by alignment as an heuristic to pack them better.
71 std::vector<DefinedCommon *> Syms = getCommonSymbols<ELFT>();
72 if (Syms.empty())
73 return nullptr;
74
75 std::stable_sort(Syms.begin(), Syms.end(),
76 [](const DefinedCommon *A, const DefinedCommon *B) {
77 return A->Alignment > B->Alignment;
78 });
79
80 BssSection *Sec = make<BssSection>("COMMON");
81 for (DefinedCommon *Sym : Syms)
82 Sym->Offset = Sec->reserveSpace(Sym->Size, Sym->Alignment);
83 return Sec;
84}
85
86// Returns an LLD version string.67// Returns an LLD version string.
87static ArrayRef<uint8_t> getVersion() {68static ArrayRef<uint8_t> getVersion() {
88 // Check LLD_VERSION first for ease of testing.69 // Check LLD_VERSION first for ease of testing.
...@@ -100,18 +81,9 @@ static ArrayRef<uint8_t> getVersion() {...@@ -100,18 +81,9 @@ static ArrayRef<uint8_t> getVersion() {
100// With this feature, you can identify LLD-generated binaries easily81// With this feature, you can identify LLD-generated binaries easily
101// by "readelf --string-dump .comment <file>".82// by "readelf --string-dump .comment <file>".
102// The returned object is a mergeable string section.83// The returned object is a mergeable string section.
103template <class ELFT> MergeInputSection *elf::createCommentSection() {84MergeInputSection *elf::createCommentSection() {
104 typename ELFT::Shdr Hdr = {};85 return make<MergeInputSection>(SHF_MERGE | SHF_STRINGS, SHT_PROGBITS, 1,
105 Hdr.sh_flags = SHF_MERGE | SHF_STRINGS;86 getVersion(), ".comment");
106 Hdr.sh_type = SHT_PROGBITS;
107 Hdr.sh_entsize = 1;
108 Hdr.sh_addralign = 1;
109
110 auto *Ret =
111 make<MergeInputSection>((ObjectFile<ELFT> *)nullptr, &Hdr, ".comment");
112 Ret->Data = getVersion();
113 Ret->splitIntoPieces();
114 return Ret;
115}87}
11688
117// .MIPS.abiflags section.89// .MIPS.abiflags section.
...@@ -137,7 +109,7 @@ MipsAbiFlagsSection<ELFT> *MipsAbiFlagsSection<ELFT>::create() {...@@ -137,7 +109,7 @@ MipsAbiFlagsSection<ELFT> *MipsAbiFlagsSection<ELFT>::create() {
137 Sec->Live = false;109 Sec->Live = false;
138 Create = true;110 Create = true;
139111
140 std::string Filename = toString(Sec->getFile<ELFT>());112 std::string Filename = toString(Sec->File);
141 const size_t Size = Sec->Data.size();113 const size_t Size = Sec->Data.size();
142 // Older version of BFD (such as the default FreeBSD linker) concatenate114 // Older version of BFD (such as the default FreeBSD linker) concatenate
143 // .MIPS.abiflags instead of merging. To allow for this case (or potential115 // .MIPS.abiflags instead of merging. To allow for this case (or potential
...@@ -154,7 +126,7 @@ MipsAbiFlagsSection<ELFT> *MipsAbiFlagsSection<ELFT>::create() {...@@ -154,7 +126,7 @@ MipsAbiFlagsSection<ELFT> *MipsAbiFlagsSection<ELFT>::create() {
154 return nullptr;126 return nullptr;
155 }127 }
156128
157 // LLD checks ISA compatibility in getMipsEFlags(). Here we just129 // LLD checks ISA compatibility in calcMipsEFlags(). Here we just
158 // select the highest number of ISA/Rev/Ext.130 // select the highest number of ISA/Rev/Ext.
159 Flags.isa_level = std::max(Flags.isa_level, S->isa_level);131 Flags.isa_level = std::max(Flags.isa_level, S->isa_level);
160 Flags.isa_rev = std::max(Flags.isa_rev, S->isa_rev);132 Flags.isa_rev = std::max(Flags.isa_rev, S->isa_rev);
...@@ -197,16 +169,19 @@ MipsOptionsSection<ELFT> *MipsOptionsSection<ELFT>::create() {...@@ -197,16 +169,19 @@ MipsOptionsSection<ELFT> *MipsOptionsSection<ELFT>::create() {
197 if (!ELFT::Is64Bits)169 if (!ELFT::Is64Bits)
198 return nullptr;170 return nullptr;
199171
200 Elf_Mips_RegInfo Reginfo = {};172 std::vector<InputSectionBase *> Sections;
201 bool Create = false;173 for (InputSectionBase *Sec : InputSections)
174 if (Sec->Type == SHT_MIPS_OPTIONS)
175 Sections.push_back(Sec);
202176
203 for (InputSectionBase *Sec : InputSections) {177 if (Sections.empty())
204 if (Sec->Type != SHT_MIPS_OPTIONS)178 return nullptr;
205 continue;179
180 Elf_Mips_RegInfo Reginfo = {};
181 for (InputSectionBase *Sec : Sections) {
206 Sec->Live = false;182 Sec->Live = false;
207 Create = true;
208183
209 std::string Filename = toString(Sec->getFile<ELFT>());184 std::string Filename = toString(Sec->File);
210 ArrayRef<uint8_t> D = Sec->Data;185 ArrayRef<uint8_t> D = Sec->Data;
211186
212 while (!D.empty()) {187 while (!D.empty()) {
...@@ -230,9 +205,7 @@ MipsOptionsSection<ELFT> *MipsOptionsSection<ELFT>::create() {...@@ -230,9 +205,7 @@ MipsOptionsSection<ELFT> *MipsOptionsSection<ELFT>::create() {
230 }205 }
231 };206 };
232207
233 if (Create)208 return make<MipsOptionsSection<ELFT>>(Reginfo);
234 return make<MipsOptionsSection<ELFT>>(Reginfo);
235 return nullptr;
236}209}
237210
238// MIPS .reginfo section.211// MIPS .reginfo section.
...@@ -255,32 +228,31 @@ MipsReginfoSection<ELFT> *MipsReginfoSection<ELFT>::create() {...@@ -255,32 +228,31 @@ MipsReginfoSection<ELFT> *MipsReginfoSection<ELFT>::create() {
255 if (ELFT::Is64Bits)228 if (ELFT::Is64Bits)
256 return nullptr;229 return nullptr;
257230
258 Elf_Mips_RegInfo Reginfo = {};231 std::vector<InputSectionBase *> Sections;
259 bool Create = false;232 for (InputSectionBase *Sec : InputSections)
233 if (Sec->Type == SHT_MIPS_REGINFO)
234 Sections.push_back(Sec);
260235
261 for (InputSectionBase *Sec : InputSections) {236 if (Sections.empty())
262 if (Sec->Type != SHT_MIPS_REGINFO)237 return nullptr;
263 continue;238
239 Elf_Mips_RegInfo Reginfo = {};
240 for (InputSectionBase *Sec : Sections) {
264 Sec->Live = false;241 Sec->Live = false;
265 Create = true;
266242
267 if (Sec->Data.size() != sizeof(Elf_Mips_RegInfo)) {243 if (Sec->Data.size() != sizeof(Elf_Mips_RegInfo)) {
268 error(toString(Sec->getFile<ELFT>()) +244 error(toString(Sec->File) + ": invalid size of .reginfo section");
269 ": invalid size of .reginfo section");
270 return nullptr;245 return nullptr;
271 }246 }
272 auto *R = reinterpret_cast<const Elf_Mips_RegInfo *>(Sec->Data.data());247 auto *R = reinterpret_cast<const Elf_Mips_RegInfo *>(Sec->Data.data());
273 if (Config->Relocatable && R->ri_gp_value)248 if (Config->Relocatable && R->ri_gp_value)
274 error(toString(Sec->getFile<ELFT>()) +249 error(toString(Sec->File) + ": unsupported non-zero ri_gp_value");
275 ": unsupported non-zero ri_gp_value");
276250
277 Reginfo.ri_gprmask |= R->ri_gprmask;251 Reginfo.ri_gprmask |= R->ri_gprmask;
278 Sec->getFile<ELFT>()->MipsGp0 = R->ri_gp_value;252 Sec->getFile<ELFT>()->MipsGp0 = R->ri_gp_value;
279 };253 };
280254
281 if (Create)255 return make<MipsReginfoSection<ELFT>>(Reginfo);
282 return make<MipsReginfoSection<ELFT>>(Reginfo);
283 return nullptr;
284}256}
285257
286InputSection *elf::createInterpSection() {258InputSection *elf::createInterpSection() {
...@@ -288,16 +260,16 @@ InputSection *elf::createInterpSection() {...@@ -288,16 +260,16 @@ InputSection *elf::createInterpSection() {
288 StringRef S = Saver.save(Config->DynamicLinker);260 StringRef S = Saver.save(Config->DynamicLinker);
289 ArrayRef<uint8_t> Contents = {(const uint8_t *)S.data(), S.size() + 1};261 ArrayRef<uint8_t> Contents = {(const uint8_t *)S.data(), S.size() + 1};
290262
291 auto *Sec =263 auto *Sec = make<InputSection>(nullptr, SHF_ALLOC, SHT_PROGBITS, 1, Contents,
292 make<InputSection>(SHF_ALLOC, SHT_PROGBITS, 1, Contents, ".interp");264 ".interp");
293 Sec->Live = true;265 Sec->Live = true;
294 return Sec;266 return Sec;
295}267}
296268
297SymbolBody *elf::addSyntheticLocal(StringRef Name, uint8_t Type, uint64_t Value,269Symbol *elf::addSyntheticLocal(StringRef Name, uint8_t Type, uint64_t Value,
298 uint64_t Size, InputSectionBase *Section) {270 uint64_t Size, InputSectionBase &Section) {
299 auto *S = make<DefinedRegular>(Name, /*IsLocal*/ true, STV_DEFAULT, Type,271 auto *S = make<Defined>(Section.File, Name, STB_LOCAL, STV_DEFAULT, Type,
300 Value, Size, Section, nullptr);272 Value, Size, &Section);
301 if (InX::SymTab)273 if (InX::SymTab)
302 InX::SymTab->addSymbol(S);274 InX::SymTab->addSymbol(S);
303 return S;275 return S;
...@@ -320,14 +292,13 @@ static size_t getHashSize() {...@@ -320,14 +292,13 @@ static size_t getHashSize() {
320}292}
321293
322BuildIdSection::BuildIdSection()294BuildIdSection::BuildIdSection()
323 : SyntheticSection(SHF_ALLOC, SHT_NOTE, 1, ".note.gnu.build-id"),295 : SyntheticSection(SHF_ALLOC, SHT_NOTE, 4, ".note.gnu.build-id"),
324 HashSize(getHashSize()) {}296 HashSize(getHashSize()) {}
325297
326void BuildIdSection::writeTo(uint8_t *Buf) {298void BuildIdSection::writeTo(uint8_t *Buf) {
327 endianness E = Config->Endianness;299 write32(Buf, 4); // Name size
328 write32(Buf, 4, E); // Name size300 write32(Buf + 4, HashSize); // Content size
329 write32(Buf + 4, HashSize, E); // Content size301 write32(Buf + 8, NT_GNU_BUILD_ID); // Type
330 write32(Buf + 8, NT_GNU_BUILD_ID, E); // Type
331 memcpy(Buf + 12, "GNU", 4); // Name string302 memcpy(Buf + 12, "GNU", 4); // Name string
332 HashBuf = Buf + 16;303 HashBuf = Buf + 16;
333}304}
...@@ -364,15 +335,12 @@ void BuildIdSection::computeHash(...@@ -364,15 +335,12 @@ void BuildIdSection::computeHash(
364 HashFn(HashBuf, Hashes);335 HashFn(HashBuf, Hashes);
365}336}
366337
367BssSection::BssSection(StringRef Name)338BssSection::BssSection(StringRef Name, uint64_t Size, uint32_t Alignment)
368 : SyntheticSection(SHF_ALLOC | SHF_WRITE, SHT_NOBITS, 0, Name) {}339 : SyntheticSection(SHF_ALLOC | SHF_WRITE, SHT_NOBITS, Alignment, Name) {
369340 this->Bss = true;
370size_t BssSection::reserveSpace(uint64_t Size, uint32_t Alignment) {
371 if (OutputSection *Sec = getParent())341 if (OutputSection *Sec = getParent())
372 Sec->updateAlignment(Alignment);342 Sec->Alignment = std::max(Sec->Alignment, Alignment);
373 this->Size = alignTo(this->Size, Alignment) + Size;343 this->Size = Size;
374 this->Alignment = std::max(this->Alignment, Alignment);
375 return this->Size - Size;
376}344}
377345
378void BuildIdSection::writeBuildId(ArrayRef<uint8_t> Buf) {346void BuildIdSection::writeBuildId(ArrayRef<uint8_t> Buf) {
...@@ -393,8 +361,8 @@ void BuildIdSection::writeBuildId(ArrayRef<uint8_t> Buf) {...@@ -393,8 +361,8 @@ void BuildIdSection::writeBuildId(ArrayRef<uint8_t> Buf) {
393 });361 });
394 break;362 break;
395 case BuildIdKind::Uuid:363 case BuildIdKind::Uuid:
396 if (getRandomBytes(HashBuf, HashSize))364 if (auto EC = getRandomBytes(HashBuf, HashSize))
397 error("entropy source failure");365 error("entropy source failure: " + EC.message());
398 break;366 break;
399 case BuildIdKind::Hexstring:367 case BuildIdKind::Hexstring:
400 memcpy(HashBuf, Config->BuildIdVector.data(), Config->BuildIdVector.size());368 memcpy(HashBuf, Config->BuildIdVector.data(), Config->BuildIdVector.size());
...@@ -404,101 +372,99 @@ void BuildIdSection::writeBuildId(ArrayRef<uint8_t> Buf) {...@@ -404,101 +372,99 @@ void BuildIdSection::writeBuildId(ArrayRef<uint8_t> Buf) {
404 }372 }
405}373}
406374
407template <class ELFT>375EhFrameSection::EhFrameSection()
408EhFrameSection<ELFT>::EhFrameSection()
409 : SyntheticSection(SHF_ALLOC, SHT_PROGBITS, 1, ".eh_frame") {}376 : SyntheticSection(SHF_ALLOC, SHT_PROGBITS, 1, ".eh_frame") {}
410377
411// Search for an existing CIE record or create a new one.378// Search for an existing CIE record or create a new one.
412// CIE records from input object files are uniquified by their contents379// CIE records from input object files are uniquified by their contents
413// and where their relocations point to.380// and where their relocations point to.
414template <class ELFT>381template <class ELFT, class RelTy>
415template <class RelTy>382CieRecord *EhFrameSection::addCie(EhSectionPiece &Cie, ArrayRef<RelTy> Rels) {
416CieRecord *EhFrameSection<ELFT>::addCie(EhSectionPiece &Piece,383 auto *Sec = cast<EhInputSection>(Cie.Sec);
417 ArrayRef<RelTy> Rels) {384 if (read32(Cie.data().data() + 4, Config->Endianness) != 0)
418 auto *Sec = cast<EhInputSection>(Piece.ID);
419 const endianness E = ELFT::TargetEndianness;
420 if (read32<E>(Piece.data().data() + 4) != 0)
421 fatal(toString(Sec) + ": CIE expected at beginning of .eh_frame");385 fatal(toString(Sec) + ": CIE expected at beginning of .eh_frame");
422386
423 SymbolBody *Personality = nullptr;387 Symbol *Personality = nullptr;
424 unsigned FirstRelI = Piece.FirstRelocation;388 unsigned FirstRelI = Cie.FirstRelocation;
425 if (FirstRelI != (unsigned)-1)389 if (FirstRelI != (unsigned)-1)
426 Personality =390 Personality =
427 &Sec->template getFile<ELFT>()->getRelocTargetSym(Rels[FirstRelI]);391 &Sec->template getFile<ELFT>()->getRelocTargetSym(Rels[FirstRelI]);
428392
429 // Search for an existing CIE by CIE contents/relocation target pair.393 // Search for an existing CIE by CIE contents/relocation target pair.
430 CieRecord *&Cie = CieMap[{Piece.data(), Personality}];394 CieRecord *&Rec = CieMap[{Cie.data(), Personality}];
431395
432 // If not found, create a new one.396 // If not found, create a new one.
433 if (!Cie) {397 if (!Rec) {
434 Cie = make<CieRecord>();398 Rec = make<CieRecord>();
435 Cie->Piece = &Piece;399 Rec->Cie = &Cie;
436 Cies.push_back(Cie);400 CieRecords.push_back(Rec);
437 }401 }
438 return Cie;402 return Rec;
439}403}
440404
441// There is one FDE per function. Returns true if a given FDE405// There is one FDE per function. Returns true if a given FDE
442// points to a live function.406// points to a live function.
443template <class ELFT>407template <class ELFT, class RelTy>
444template <class RelTy>408bool EhFrameSection::isFdeLive(EhSectionPiece &Fde, ArrayRef<RelTy> Rels) {
445bool EhFrameSection<ELFT>::isFdeLive(EhSectionPiece &Piece,409 auto *Sec = cast<EhInputSection>(Fde.Sec);
446 ArrayRef<RelTy> Rels) {410 unsigned FirstRelI = Fde.FirstRelocation;
447 auto *Sec = cast<EhInputSection>(Piece.ID);411
448 unsigned FirstRelI = Piece.FirstRelocation;412 // An FDE should point to some function because FDEs are to describe
413 // functions. That's however not always the case due to an issue of
414 // ld.gold with -r. ld.gold may discard only functions and leave their
415 // corresponding FDEs, which results in creating bad .eh_frame sections.
416 // To deal with that, we ignore such FDEs.
449 if (FirstRelI == (unsigned)-1)417 if (FirstRelI == (unsigned)-1)
450 return false;418 return false;
419
451 const RelTy &Rel = Rels[FirstRelI];420 const RelTy &Rel = Rels[FirstRelI];
452 SymbolBody &B = Sec->template getFile<ELFT>()->getRelocTargetSym(Rel);421 Symbol &B = Sec->template getFile<ELFT>()->getRelocTargetSym(Rel);
453 auto *D = dyn_cast<DefinedRegular>(&B);422
454 if (!D || !D->Section)423 // FDEs for garbage-collected or merged-by-ICF sections are dead.
455 return false;424 if (auto *D = dyn_cast<Defined>(&B))
456 auto *Target =425 if (SectionBase *Sec = D->Section)
457 cast<InputSectionBase>(cast<InputSectionBase>(D->Section)->Repl);426 return Sec->Live;
458 return Target && Target->Live;427 return false;
459}428}
460429
461// .eh_frame is a sequence of CIE or FDE records. In general, there430// .eh_frame is a sequence of CIE or FDE records. In general, there
462// is one CIE record per input object file which is followed by431// is one CIE record per input object file which is followed by
463// a list of FDEs. This function searches an existing CIE or create a new432// a list of FDEs. This function searches an existing CIE or create a new
464// one and associates FDEs to the CIE.433// one and associates FDEs to the CIE.
465template <class ELFT>434template <class ELFT, class RelTy>
466template <class RelTy>435void EhFrameSection::addSectionAux(EhInputSection *Sec, ArrayRef<RelTy> Rels) {
467void EhFrameSection<ELFT>::addSectionAux(EhInputSection *Sec,
468 ArrayRef<RelTy> Rels) {
469 const endianness E = ELFT::TargetEndianness;
470
471 DenseMap<size_t, CieRecord *> OffsetToCie;436 DenseMap<size_t, CieRecord *> OffsetToCie;
472 for (EhSectionPiece &Piece : Sec->Pieces) {437 for (EhSectionPiece &Piece : Sec->Pieces) {
473 // The empty record is the end marker.438 // The empty record is the end marker.
474 if (Piece.size() == 4)439 if (Piece.Size == 4)
475 return;440 return;
476441
477 size_t Offset = Piece.InputOff;442 size_t Offset = Piece.InputOff;
478 uint32_t ID = read32<E>(Piece.data().data() + 4);443 uint32_t ID = read32(Piece.data().data() + 4, Config->Endianness);
479 if (ID == 0) {444 if (ID == 0) {
480 OffsetToCie[Offset] = addCie(Piece, Rels);445 OffsetToCie[Offset] = addCie<ELFT>(Piece, Rels);
481 continue;446 continue;
482 }447 }
483448
484 uint32_t CieOffset = Offset + 4 - ID;449 uint32_t CieOffset = Offset + 4 - ID;
485 CieRecord *Cie = OffsetToCie[CieOffset];450 CieRecord *Rec = OffsetToCie[CieOffset];
486 if (!Cie)451 if (!Rec)
487 fatal(toString(Sec) + ": invalid CIE reference");452 fatal(toString(Sec) + ": invalid CIE reference");
488453
489 if (!isFdeLive(Piece, Rels))454 if (!isFdeLive<ELFT>(Piece, Rels))
490 continue;455 continue;
491 Cie->FdePieces.push_back(&Piece);456 Rec->Fdes.push_back(&Piece);
492 NumFdes++;457 NumFdes++;
493 }458 }
494}459}
495460
496template <class ELFT>461template <class ELFT> void EhFrameSection::addSection(InputSectionBase *C) {
497void EhFrameSection<ELFT>::addSection(InputSectionBase *C) {
498 auto *Sec = cast<EhInputSection>(C);462 auto *Sec = cast<EhInputSection>(C);
499 Sec->Parent = this;463 Sec->Parent = this;
500 updateAlignment(Sec->Alignment);464
465 Alignment = std::max(Alignment, Sec->Alignment);
501 Sections.push_back(Sec);466 Sections.push_back(Sec);
467
502 for (auto *DS : Sec->DependentSections)468 for (auto *DS : Sec->DependentSections)
503 DependentSections.push_back(DS);469 DependentSections.push_back(DS);
504470
...@@ -509,42 +475,36 @@ void EhFrameSection<ELFT>::addSection(InputSectionBase *C) {...@@ -509,42 +475,36 @@ void EhFrameSection<ELFT>::addSection(InputSectionBase *C) {
509 if (Sec->Pieces.empty())475 if (Sec->Pieces.empty())
510 return;476 return;
511477
512 if (Sec->NumRelocations) {478 if (Sec->AreRelocsRela)
513 if (Sec->AreRelocsRela)479 addSectionAux<ELFT>(Sec, Sec->template relas<ELFT>());
514 addSectionAux(Sec, Sec->template relas<ELFT>());480 else
515 else481 addSectionAux<ELFT>(Sec, Sec->template rels<ELFT>());
516 addSectionAux(Sec, Sec->template rels<ELFT>());
517 return;
518 }
519 addSectionAux(Sec, makeArrayRef<Elf_Rela>(nullptr, nullptr));
520}482}
521483
522template <class ELFT>
523static void writeCieFde(uint8_t *Buf, ArrayRef<uint8_t> D) {484static void writeCieFde(uint8_t *Buf, ArrayRef<uint8_t> D) {
524 memcpy(Buf, D.data(), D.size());485 memcpy(Buf, D.data(), D.size());
525486
526 size_t Aligned = alignTo(D.size(), sizeof(typename ELFT::uint));487 size_t Aligned = alignTo(D.size(), Config->Wordsize);
527488
528 // Zero-clear trailing padding if it exists.489 // Zero-clear trailing padding if it exists.
529 memset(Buf + D.size(), 0, Aligned - D.size());490 memset(Buf + D.size(), 0, Aligned - D.size());
530491
531 // Fix the size field. -4 since size does not include the size field itself.492 // Fix the size field. -4 since size does not include the size field itself.
532 const endianness E = ELFT::TargetEndianness;493 write32(Buf, Aligned - 4);
533 write32<E>(Buf, Aligned - 4);
534}494}
535495
536template <class ELFT> void EhFrameSection<ELFT>::finalizeContents() {496void EhFrameSection::finalizeContents() {
537 if (this->Size)497 if (this->Size)
538 return; // Already finalized.498 return; // Already finalized.
539499
540 size_t Off = 0;500 size_t Off = 0;
541 for (CieRecord *Cie : Cies) {501 for (CieRecord *Rec : CieRecords) {
542 Cie->Piece->OutputOff = Off;502 Rec->Cie->OutputOff = Off;
543 Off += alignTo(Cie->Piece->size(), Config->Wordsize);503 Off += alignTo(Rec->Cie->Size, Config->Wordsize);
544504
545 for (EhSectionPiece *Fde : Cie->FdePieces) {505 for (EhSectionPiece *Fde : Rec->Fdes) {
546 Fde->OutputOff = Off;506 Fde->OutputOff = Off;
547 Off += alignTo(Fde->size(), Config->Wordsize);507 Off += alignTo(Fde->Size, Config->Wordsize);
548 }508 }
549 }509 }
550510
...@@ -557,32 +517,46 @@ template <class ELFT> void EhFrameSection<ELFT>::finalizeContents() {...@@ -557,32 +517,46 @@ template <class ELFT> void EhFrameSection<ELFT>::finalizeContents() {
557 this->Size = Off;517 this->Size = Off;
558}518}
559519
560template <class ELFT> static uint64_t readFdeAddr(uint8_t *Buf, int Size) {520// Returns data for .eh_frame_hdr. .eh_frame_hdr is a binary search table
561 const endianness E = ELFT::TargetEndianness;521// to get an FDE from an address to which FDE is applied. This function
522// returns a list of such pairs.
523std::vector<EhFrameSection::FdeData> EhFrameSection::getFdeData() const {
524 uint8_t *Buf = getParent()->Loc + OutSecOff;
525 std::vector<FdeData> Ret;
526
527 for (CieRecord *Rec : CieRecords) {
528 uint8_t Enc = getFdeEncoding(Rec->Cie);
529 for (EhSectionPiece *Fde : Rec->Fdes) {
530 uint32_t Pc = getFdePc(Buf, Fde->OutputOff, Enc);
531 uint32_t FdeVA = getParent()->Addr + Fde->OutputOff;
532 Ret.push_back({Pc, FdeVA});
533 }
534 }
535 return Ret;
536}
537
538static uint64_t readFdeAddr(uint8_t *Buf, int Size) {
562 switch (Size) {539 switch (Size) {
563 case DW_EH_PE_udata2:540 case DW_EH_PE_udata2:
564 return read16<E>(Buf);541 return read16(Buf, Config->Endianness);
565 case DW_EH_PE_udata4:542 case DW_EH_PE_udata4:
566 return read32<E>(Buf);543 return read32(Buf, Config->Endianness);
567 case DW_EH_PE_udata8:544 case DW_EH_PE_udata8:
568 return read64<E>(Buf);545 return read64(Buf, Config->Endianness);
569 case DW_EH_PE_absptr:546 case DW_EH_PE_absptr:
570 if (ELFT::Is64Bits)547 return readUint(Buf);
571 return read64<E>(Buf);
572 return read32<E>(Buf);
573 }548 }
574 fatal("unknown FDE size encoding");549 fatal("unknown FDE size encoding");
575}550}
576551
577// Returns the VA to which a given FDE (on a mmap'ed buffer) is applied to.552// Returns the VA to which a given FDE (on a mmap'ed buffer) is applied to.
578// We need it to create .eh_frame_hdr section.553// We need it to create .eh_frame_hdr section.
579template <class ELFT>554uint64_t EhFrameSection::getFdePc(uint8_t *Buf, size_t FdeOff,
580uint64_t EhFrameSection<ELFT>::getFdePc(uint8_t *Buf, size_t FdeOff,555 uint8_t Enc) const {
581 uint8_t Enc) {
582 // The starting address to which this FDE applies is556 // The starting address to which this FDE applies is
583 // stored at FDE + 8 byte.557 // stored at FDE + 8 byte.
584 size_t Off = FdeOff + 8;558 size_t Off = FdeOff + 8;
585 uint64_t Addr = readFdeAddr<ELFT>(Buf + Off, Enc & 0x7);559 uint64_t Addr = readFdeAddr(Buf + Off, Enc & 0x7);
586 if ((Enc & 0x70) == DW_EH_PE_absptr)560 if ((Enc & 0x70) == DW_EH_PE_absptr)
587 return Addr;561 return Addr;
588 if ((Enc & 0x70) == DW_EH_PE_pcrel)562 if ((Enc & 0x70) == DW_EH_PE_pcrel)
...@@ -590,50 +564,39 @@ uint64_t EhFrameSection<ELFT>::getFdePc(uint8_t *Buf, size_t FdeOff,...@@ -590,50 +564,39 @@ uint64_t EhFrameSection<ELFT>::getFdePc(uint8_t *Buf, size_t FdeOff,
590 fatal("unknown FDE size relative encoding");564 fatal("unknown FDE size relative encoding");
591}565}
592566
593template <class ELFT> void EhFrameSection<ELFT>::writeTo(uint8_t *Buf) {567void EhFrameSection::writeTo(uint8_t *Buf) {
594 const endianness E = ELFT::TargetEndianness;568 // Write CIE and FDE records.
595 for (CieRecord *Cie : Cies) {569 for (CieRecord *Rec : CieRecords) {
596 size_t CieOffset = Cie->Piece->OutputOff;570 size_t CieOffset = Rec->Cie->OutputOff;
597 writeCieFde<ELFT>(Buf + CieOffset, Cie->Piece->data());571 writeCieFde(Buf + CieOffset, Rec->Cie->data());
598572
599 for (EhSectionPiece *Fde : Cie->FdePieces) {573 for (EhSectionPiece *Fde : Rec->Fdes) {
600 size_t Off = Fde->OutputOff;574 size_t Off = Fde->OutputOff;
601 writeCieFde<ELFT>(Buf + Off, Fde->data());575 writeCieFde(Buf + Off, Fde->data());
602576
603 // FDE's second word should have the offset to an associated CIE.577 // FDE's second word should have the offset to an associated CIE.
604 // Write it.578 // Write it.
605 write32<E>(Buf + Off + 4, Off + 4 - CieOffset);579 write32(Buf + Off + 4, Off + 4 - CieOffset);
606 }580 }
607 }581 }
608582
583 // Apply relocations. .eh_frame section contents are not contiguous
584 // in the output buffer, but relocateAlloc() still works because
585 // getOffset() takes care of discontiguous section pieces.
609 for (EhInputSection *S : Sections)586 for (EhInputSection *S : Sections)
610 S->relocateAlloc(Buf, nullptr);587 S->relocateAlloc(Buf, nullptr);
611
612 // Construct .eh_frame_hdr. .eh_frame_hdr is a binary search table
613 // to get a FDE from an address to which FDE is applied. So here
614 // we obtain two addresses and pass them to EhFrameHdr object.
615 if (In<ELFT>::EhFrameHdr) {
616 for (CieRecord *Cie : Cies) {
617 uint8_t Enc = getFdeEncoding<ELFT>(Cie->Piece);
618 for (SectionPiece *Fde : Cie->FdePieces) {
619 uint64_t Pc = getFdePc(Buf, Fde->OutputOff, Enc);
620 uint64_t FdeVA = getParent()->Addr + Fde->OutputOff;
621 In<ELFT>::EhFrameHdr->addFde(Pc, FdeVA);
622 }
623 }
624 }
625}588}
626589
627GotSection::GotSection()590GotSection::GotSection()
628 : SyntheticSection(SHF_ALLOC | SHF_WRITE, SHT_PROGBITS,591 : SyntheticSection(SHF_ALLOC | SHF_WRITE, SHT_PROGBITS,
629 Target->GotEntrySize, ".got") {}592 Target->GotEntrySize, ".got") {}
630593
631void GotSection::addEntry(SymbolBody &Sym) {594void GotSection::addEntry(Symbol &Sym) {
632 Sym.GotIndex = NumEntries;595 Sym.GotIndex = NumEntries;
633 ++NumEntries;596 ++NumEntries;
634}597}
635598
636bool GotSection::addDynTlsEntry(SymbolBody &Sym) {599bool GotSection::addDynTlsEntry(Symbol &Sym) {
637 if (Sym.GlobalDynIndex != -1U)600 if (Sym.GlobalDynIndex != -1U)
638 return false;601 return false;
639 Sym.GlobalDynIndex = NumEntries;602 Sym.GlobalDynIndex = NumEntries;
...@@ -652,20 +615,21 @@ bool GotSection::addTlsIndex() {...@@ -652,20 +615,21 @@ bool GotSection::addTlsIndex() {
652 return true;615 return true;
653}616}
654617
655uint64_t GotSection::getGlobalDynAddr(const SymbolBody &B) const {618uint64_t GotSection::getGlobalDynAddr(const Symbol &B) const {
656 return this->getVA() + B.GlobalDynIndex * Config->Wordsize;619 return this->getVA() + B.GlobalDynIndex * Config->Wordsize;
657}620}
658621
659uint64_t GotSection::getGlobalDynOffset(const SymbolBody &B) const {622uint64_t GotSection::getGlobalDynOffset(const Symbol &B) const {
660 return B.GlobalDynIndex * Config->Wordsize;623 return B.GlobalDynIndex * Config->Wordsize;
661}624}
662625
663void GotSection::finalizeContents() { Size = NumEntries * Config->Wordsize; }626void GotSection::finalizeContents() { Size = NumEntries * Config->Wordsize; }
664627
665bool GotSection::empty() const {628bool GotSection::empty() const {
666 // If we have a relocation that is relative to GOT (such as GOTOFFREL),629 // We need to emit a GOT even if it's empty if there's a relocation that is
667 // we need to emit a GOT even if it's empty.630 // relative to GOT(such as GOTOFFREL) or there's a symbol that points to a GOT
668 return NumEntries == 0 && !HasGotOffRel;631 // (i.e. _GLOBAL_OFFSET_TABLE_).
632 return NumEntries == 0 && !HasGotOffRel && !ElfSym::GlobalOffsetTable;
669}633}
670634
671void GotSection::writeTo(uint8_t *Buf) {635void GotSection::writeTo(uint8_t *Buf) {
...@@ -679,7 +643,7 @@ MipsGotSection::MipsGotSection()...@@ -679,7 +643,7 @@ MipsGotSection::MipsGotSection()
679 : SyntheticSection(SHF_ALLOC | SHF_WRITE | SHF_MIPS_GPREL, SHT_PROGBITS, 16,643 : SyntheticSection(SHF_ALLOC | SHF_WRITE | SHF_MIPS_GPREL, SHT_PROGBITS, 16,
680 ".got") {}644 ".got") {}
681645
682void MipsGotSection::addEntry(SymbolBody &Sym, int64_t Addend, RelExpr Expr) {646void MipsGotSection::addEntry(Symbol &Sym, int64_t Addend, RelExpr Expr) {
683 // For "true" local symbols which can be referenced from the same module647 // For "true" local symbols which can be referenced from the same module
684 // only compiler creates two instructions for address loading:648 // only compiler creates two instructions for address loading:
685 //649 //
...@@ -721,7 +685,7 @@ void MipsGotSection::addEntry(SymbolBody &Sym, int64_t Addend, RelExpr Expr) {...@@ -721,7 +685,7 @@ void MipsGotSection::addEntry(SymbolBody &Sym, int64_t Addend, RelExpr Expr) {
721 TlsEntries.push_back(&Sym);685 TlsEntries.push_back(&Sym);
722 return;686 return;
723 }687 }
724 auto AddEntry = [&](SymbolBody &S, uint64_t A, GotEntries &Items) {688 auto AddEntry = [&](Symbol &S, uint64_t A, GotEntries &Items) {
725 if (S.isInGot() && !A)689 if (S.isInGot() && !A)
726 return;690 return;
727 size_t NewIndex = Items.size();691 size_t NewIndex = Items.size();
...@@ -731,7 +695,7 @@ void MipsGotSection::addEntry(SymbolBody &Sym, int64_t Addend, RelExpr Expr) {...@@ -731,7 +695,7 @@ void MipsGotSection::addEntry(SymbolBody &Sym, int64_t Addend, RelExpr Expr) {
731 if (!A)695 if (!A)
732 S.GotIndex = NewIndex;696 S.GotIndex = NewIndex;
733 };697 };
734 if (Sym.isPreemptible()) {698 if (Sym.IsPreemptible) {
735 // Ignore addends for preemptible symbols. They got single GOT entry anyway.699 // Ignore addends for preemptible symbols. They got single GOT entry anyway.
736 AddEntry(Sym, 0, GlobalEntries);700 AddEntry(Sym, 0, GlobalEntries);
737 Sym.IsInGlobalMipsGot = true;701 Sym.IsInGlobalMipsGot = true;
...@@ -746,7 +710,7 @@ void MipsGotSection::addEntry(SymbolBody &Sym, int64_t Addend, RelExpr Expr) {...@@ -746,7 +710,7 @@ void MipsGotSection::addEntry(SymbolBody &Sym, int64_t Addend, RelExpr Expr) {
746 }710 }
747}711}
748712
749bool MipsGotSection::addDynTlsEntry(SymbolBody &Sym) {713bool MipsGotSection::addDynTlsEntry(Symbol &Sym) {
750 if (Sym.GlobalDynIndex != -1U)714 if (Sym.GlobalDynIndex != -1U)
751 return false;715 return false;
752 Sym.GlobalDynIndex = TlsEntries.size();716 Sym.GlobalDynIndex = TlsEntries.size();
...@@ -775,7 +739,7 @@ static uint64_t getMipsPageCount(uint64_t Size) {...@@ -775,7 +739,7 @@ static uint64_t getMipsPageCount(uint64_t Size) {
775 return (Size + 0xfffe) / 0xffff + 1;739 return (Size + 0xfffe) / 0xffff + 1;
776}740}
777741
778uint64_t MipsGotSection::getPageEntryOffset(const SymbolBody &B,742uint64_t MipsGotSection::getPageEntryOffset(const Symbol &B,
779 int64_t Addend) const {743 int64_t Addend) const {
780 const OutputSection *OutSec = B.getOutputSection();744 const OutputSection *OutSec = B.getOutputSection();
781 uint64_t SecAddr = getMipsPageAddr(OutSec->Addr);745 uint64_t SecAddr = getMipsPageAddr(OutSec->Addr);
...@@ -785,8 +749,8 @@ uint64_t MipsGotSection::getPageEntryOffset(const SymbolBody &B,...@@ -785,8 +749,8 @@ uint64_t MipsGotSection::getPageEntryOffset(const SymbolBody &B,
785 return (HeaderEntriesNum + Index) * Config->Wordsize;749 return (HeaderEntriesNum + Index) * Config->Wordsize;
786}750}
787751
788uint64_t MipsGotSection::getBodyEntryOffset(const SymbolBody &B,752uint64_t MipsGotSection::getSymEntryOffset(const Symbol &B,
789 int64_t Addend) const {753 int64_t Addend) const {
790 // Calculate offset of the GOT entries block: TLS, global, local.754 // Calculate offset of the GOT entries block: TLS, global, local.
791 uint64_t Index = HeaderEntriesNum + PageEntriesNum;755 uint64_t Index = HeaderEntriesNum + PageEntriesNum;
792 if (B.isTls())756 if (B.isTls())
...@@ -810,11 +774,11 @@ uint64_t MipsGotSection::getTlsOffset() const {...@@ -810,11 +774,11 @@ uint64_t MipsGotSection::getTlsOffset() const {
810 return (getLocalEntriesNum() + GlobalEntries.size()) * Config->Wordsize;774 return (getLocalEntriesNum() + GlobalEntries.size()) * Config->Wordsize;
811}775}
812776
813uint64_t MipsGotSection::getGlobalDynOffset(const SymbolBody &B) const {777uint64_t MipsGotSection::getGlobalDynOffset(const Symbol &B) const {
814 return B.GlobalDynIndex * Config->Wordsize;778 return B.GlobalDynIndex * Config->Wordsize;
815}779}
816780
817const SymbolBody *MipsGotSection::getFirstGlobalEntry() const {781const Symbol *MipsGotSection::getFirstGlobalEntry() const {
818 return GlobalEntries.empty() ? nullptr : GlobalEntries.front().first;782 return GlobalEntries.empty() ? nullptr : GlobalEntries.front().first;
819}783}
820784
...@@ -825,7 +789,7 @@ unsigned MipsGotSection::getLocalEntriesNum() const {...@@ -825,7 +789,7 @@ unsigned MipsGotSection::getLocalEntriesNum() const {
825789
826void MipsGotSection::finalizeContents() { updateAllocSize(); }790void MipsGotSection::finalizeContents() { updateAllocSize(); }
827791
828void MipsGotSection::updateAllocSize() {792bool MipsGotSection::updateAllocSize() {
829 PageEntriesNum = 0;793 PageEntriesNum = 0;
830 for (std::pair<const OutputSection *, size_t> &P : PageIndexMap) {794 for (std::pair<const OutputSection *, size_t> &P : PageIndexMap) {
831 // For each output section referenced by GOT page relocations calculate795 // For each output section referenced by GOT page relocations calculate
...@@ -839,6 +803,7 @@ void MipsGotSection::updateAllocSize() {...@@ -839,6 +803,7 @@ void MipsGotSection::updateAllocSize() {
839 }803 }
840 Size = (getLocalEntriesNum() + GlobalEntries.size() + TlsEntries.size()) *804 Size = (getLocalEntriesNum() + GlobalEntries.size() + TlsEntries.size()) *
841 Config->Wordsize;805 Config->Wordsize;
806 return false;
842}807}
843808
844bool MipsGotSection::empty() const {809bool MipsGotSection::empty() const {
...@@ -849,19 +814,6 @@ bool MipsGotSection::empty() const {...@@ -849,19 +814,6 @@ bool MipsGotSection::empty() const {
849814
850uint64_t MipsGotSection::getGp() const { return ElfSym::MipsGp->getVA(0); }815uint64_t MipsGotSection::getGp() const { return ElfSym::MipsGp->getVA(0); }
851816
852static uint64_t readUint(uint8_t *Buf) {
853 if (Config->Is64)
854 return read64(Buf, Config->Endianness);
855 return read32(Buf, Config->Endianness);
856}
857
858static void writeUint(uint8_t *Buf, uint64_t Val) {
859 if (Config->Is64)
860 write64(Buf, Val, Config->Endianness);
861 else
862 write32(Buf, Val, Config->Endianness);
863}
864
865void MipsGotSection::writeTo(uint8_t *Buf) {817void MipsGotSection::writeTo(uint8_t *Buf) {
866 // Set the MSB of the second GOT slot. This is not required by any818 // Set the MSB of the second GOT slot. This is not required by any
867 // MIPS ABI documentation, though.819 // MIPS ABI documentation, though.
...@@ -892,8 +844,10 @@ void MipsGotSection::writeTo(uint8_t *Buf) {...@@ -892,8 +844,10 @@ void MipsGotSection::writeTo(uint8_t *Buf) {
892 auto AddEntry = [&](const GotEntry &SA) {844 auto AddEntry = [&](const GotEntry &SA) {
893 uint8_t *Entry = Buf;845 uint8_t *Entry = Buf;
894 Buf += Config->Wordsize;846 Buf += Config->Wordsize;
895 const SymbolBody *Body = SA.first;847 const Symbol *Sym = SA.first;
896 uint64_t VA = Body->getVA(SA.second);848 uint64_t VA = Sym->getVA(SA.second);
849 if (Sym->StOther & STO_MIPS_MICROMIPS)
850 VA |= 1;
897 writeUint(Entry, VA);851 writeUint(Entry, VA);
898 };852 };
899 std::for_each(std::begin(LocalEntries), std::end(LocalEntries), AddEntry);853 std::for_each(std::begin(LocalEntries), std::end(LocalEntries), AddEntry);
...@@ -906,8 +860,8 @@ void MipsGotSection::writeTo(uint8_t *Buf) {...@@ -906,8 +860,8 @@ void MipsGotSection::writeTo(uint8_t *Buf) {
906 // https://www.linux-mips.org/wiki/NPTL860 // https://www.linux-mips.org/wiki/NPTL
907 if (TlsIndexOff != -1U && !Config->Pic)861 if (TlsIndexOff != -1U && !Config->Pic)
908 writeUint(Buf + TlsIndexOff, 1);862 writeUint(Buf + TlsIndexOff, 1);
909 for (const SymbolBody *B : TlsEntries) {863 for (const Symbol *B : TlsEntries) {
910 if (!B || B->isPreemptible())864 if (!B || B->IsPreemptible)
911 continue;865 continue;
912 uint64_t VA = B->getVA();866 uint64_t VA = B->getVA();
913 if (B->GotIndex != -1U) {867 if (B->GotIndex != -1U) {
...@@ -927,7 +881,7 @@ GotPltSection::GotPltSection()...@@ -927,7 +881,7 @@ GotPltSection::GotPltSection()
927 : SyntheticSection(SHF_ALLOC | SHF_WRITE, SHT_PROGBITS,881 : SyntheticSection(SHF_ALLOC | SHF_WRITE, SHT_PROGBITS,
928 Target->GotPltEntrySize, ".got.plt") {}882 Target->GotPltEntrySize, ".got.plt") {}
929883
930void GotPltSection::addEntry(SymbolBody &Sym) {884void GotPltSection::addEntry(Symbol &Sym) {
931 Sym.GotPltIndex = Target->GotPltHeaderEntriesNum + Entries.size();885 Sym.GotPltIndex = Target->GotPltHeaderEntriesNum + Entries.size();
932 Entries.push_back(&Sym);886 Entries.push_back(&Sym);
933}887}
...@@ -940,7 +894,7 @@ size_t GotPltSection::getSize() const {...@@ -940,7 +894,7 @@ size_t GotPltSection::getSize() const {
940void GotPltSection::writeTo(uint8_t *Buf) {894void GotPltSection::writeTo(uint8_t *Buf) {
941 Target->writeGotPltHeader(Buf);895 Target->writeGotPltHeader(Buf);
942 Buf += Target->GotPltHeaderEntriesNum * Target->GotPltEntrySize;896 Buf += Target->GotPltHeaderEntriesNum * Target->GotPltEntrySize;
943 for (const SymbolBody *B : Entries) {897 for (const Symbol *B : Entries) {
944 Target->writeGotPlt(Buf, *B);898 Target->writeGotPlt(Buf, *B);
945 Buf += Config->Wordsize;899 Buf += Config->Wordsize;
946 }900 }
...@@ -953,7 +907,7 @@ IgotPltSection::IgotPltSection()...@@ -953,7 +907,7 @@ IgotPltSection::IgotPltSection()
953 Target->GotPltEntrySize,907 Target->GotPltEntrySize,
954 Config->EMachine == EM_ARM ? ".got" : ".got.plt") {}908 Config->EMachine == EM_ARM ? ".got" : ".got.plt") {}
955909
956void IgotPltSection::addEntry(SymbolBody &Sym) {910void IgotPltSection::addEntry(Symbol &Sym) {
957 Sym.IsInIgot = true;911 Sym.IsInIgot = true;
958 Sym.GotPltIndex = Entries.size();912 Sym.GotPltIndex = Entries.size();
959 Entries.push_back(&Sym);913 Entries.push_back(&Sym);
...@@ -964,7 +918,7 @@ size_t IgotPltSection::getSize() const {...@@ -964,7 +918,7 @@ size_t IgotPltSection::getSize() const {
964}918}
965919
966void IgotPltSection::writeTo(uint8_t *Buf) {920void IgotPltSection::writeTo(uint8_t *Buf) {
967 for (const SymbolBody *B : Entries) {921 for (const Symbol *B : Entries) {
968 Target->writeIgotPlt(Buf, *B);922 Target->writeIgotPlt(Buf, *B);
969 Buf += Config->Wordsize;923 Buf += Config->Wordsize;
970 }924 }
...@@ -996,6 +950,7 @@ unsigned StringTableSection::addString(StringRef S, bool HashIt) {...@@ -996,6 +950,7 @@ unsigned StringTableSection::addString(StringRef S, bool HashIt) {
996void StringTableSection::writeTo(uint8_t *Buf) {950void StringTableSection::writeTo(uint8_t *Buf) {
997 for (StringRef S : Strings) {951 for (StringRef S : Strings) {
998 memcpy(Buf, S.data(), S.size());952 memcpy(Buf, S.data(), S.size());
953 Buf[S.size()] = '\0';
999 Buf += S.size() + 1;954 Buf += S.size() + 1;
1000 }955 }
1001}956}
...@@ -1018,26 +973,61 @@ DynamicSection<ELFT>::DynamicSection()...@@ -1018,26 +973,61 @@ DynamicSection<ELFT>::DynamicSection()
1018 if (Config->EMachine == EM_MIPS || Config->ZRodynamic)973 if (Config->EMachine == EM_MIPS || Config->ZRodynamic)
1019 this->Flags = SHF_ALLOC;974 this->Flags = SHF_ALLOC;
1020975
1021 addEntries();
1022}
1023
1024// There are some dynamic entries that don't depend on other sections.
1025// Such entries can be set early.
1026template <class ELFT> void DynamicSection<ELFT>::addEntries() {
1027 // Add strings to .dynstr early so that .dynstr's size will be976 // Add strings to .dynstr early so that .dynstr's size will be
1028 // fixed early.977 // fixed early.
1029 for (StringRef S : Config->FilterList)978 for (StringRef S : Config->FilterList)
1030 add({DT_FILTER, InX::DynStrTab->addString(S)});979 addInt(DT_FILTER, InX::DynStrTab->addString(S));
1031 for (StringRef S : Config->AuxiliaryList)980 for (StringRef S : Config->AuxiliaryList)
1032 add({DT_AUXILIARY, InX::DynStrTab->addString(S)});981 addInt(DT_AUXILIARY, InX::DynStrTab->addString(S));
982
1033 if (!Config->Rpath.empty())983 if (!Config->Rpath.empty())
1034 add({Config->EnableNewDtags ? DT_RUNPATH : DT_RPATH,984 addInt(Config->EnableNewDtags ? DT_RUNPATH : DT_RPATH,
1035 InX::DynStrTab->addString(Config->Rpath)});985 InX::DynStrTab->addString(Config->Rpath));
1036 for (SharedFile<ELFT> *F : Symtab<ELFT>::X->getSharedFiles())986
1037 if (F->isNeeded())987 for (InputFile *File : SharedFiles) {
1038 add({DT_NEEDED, InX::DynStrTab->addString(F->SoName)});988 SharedFile<ELFT> *F = cast<SharedFile<ELFT>>(File);
989 if (F->IsNeeded)
990 addInt(DT_NEEDED, InX::DynStrTab->addString(F->SoName));
991 }
1039 if (!Config->SoName.empty())992 if (!Config->SoName.empty())
1040 add({DT_SONAME, InX::DynStrTab->addString(Config->SoName)});993 addInt(DT_SONAME, InX::DynStrTab->addString(Config->SoName));
994}
995
996template <class ELFT>
997void DynamicSection<ELFT>::add(int32_t Tag, std::function<uint64_t()> Fn) {
998 Entries.push_back({Tag, Fn});
999}
1000
1001template <class ELFT>
1002void DynamicSection<ELFT>::addInt(int32_t Tag, uint64_t Val) {
1003 Entries.push_back({Tag, [=] { return Val; }});
1004}
1005
1006template <class ELFT>
1007void DynamicSection<ELFT>::addInSec(int32_t Tag, InputSection *Sec) {
1008 Entries.push_back(
1009 {Tag, [=] { return Sec->getParent()->Addr + Sec->OutSecOff; }});
1010}
1011
1012template <class ELFT>
1013void DynamicSection<ELFT>::addOutSec(int32_t Tag, OutputSection *Sec) {
1014 Entries.push_back({Tag, [=] { return Sec->Addr; }});
1015}
1016
1017template <class ELFT>
1018void DynamicSection<ELFT>::addSize(int32_t Tag, OutputSection *Sec) {
1019 Entries.push_back({Tag, [=] { return Sec->Size; }});
1020}
1021
1022template <class ELFT>
1023void DynamicSection<ELFT>::addSym(int32_t Tag, Symbol *Sym) {
1024 Entries.push_back({Tag, [=] { return Sym->getVA(); }});
1025}
1026
1027// Add remaining entries to complete .dynamic contents.
1028template <class ELFT> void DynamicSection<ELFT>::finalizeContents() {
1029 if (this->Size)
1030 return; // Already finalized.
10411031
1042 // Set DT_FLAGS and DT_FLAGS_1.1032 // Set DT_FLAGS and DT_FLAGS_1.
1043 uint32_t DtFlags = 0;1033 uint32_t DtFlags = 0;
...@@ -1058,9 +1048,9 @@ template <class ELFT> void DynamicSection<ELFT>::addEntries() {...@@ -1058,9 +1048,9 @@ template <class ELFT> void DynamicSection<ELFT>::addEntries() {
1058 }1048 }
10591049
1060 if (DtFlags)1050 if (DtFlags)
1061 add({DT_FLAGS, DtFlags});1051 addInt(DT_FLAGS, DtFlags);
1062 if (DtFlags1)1052 if (DtFlags1)
1063 add({DT_FLAGS_1, DtFlags1});1053 addInt(DT_FLAGS_1, DtFlags1);
10641054
1065 // DT_DEBUG is a pointer to debug informaion used by debuggers at runtime. We1055 // DT_DEBUG is a pointer to debug informaion used by debuggers at runtime. We
1066 // need it for each process, so we don't write it for DSOs. The loader writes1056 // need it for each process, so we don't write it for DSOs. The loader writes
...@@ -1071,133 +1061,121 @@ template <class ELFT> void DynamicSection<ELFT>::addEntries() {...@@ -1071,133 +1061,121 @@ template <class ELFT> void DynamicSection<ELFT>::addEntries() {
1071 // debugger this information. Such systems may choose make .dynamic read-only.1061 // debugger this information. Such systems may choose make .dynamic read-only.
1072 // If the target is such a system (used -z rodynamic) don't write DT_DEBUG.1062 // If the target is such a system (used -z rodynamic) don't write DT_DEBUG.
1073 if (!Config->Shared && !Config->Relocatable && !Config->ZRodynamic)1063 if (!Config->Shared && !Config->Relocatable && !Config->ZRodynamic)
1074 add({DT_DEBUG, (uint64_t)0});1064 addInt(DT_DEBUG, 0);
1075}
1076
1077// Add remaining entries to complete .dynamic contents.
1078template <class ELFT> void DynamicSection<ELFT>::finalizeContents() {
1079 if (this->Size)
1080 return; // Already finalized.
10811065
1082 this->Link = InX::DynStrTab->getParent()->SectionIndex;1066 this->Link = InX::DynStrTab->getParent()->SectionIndex;
1083 if (In<ELFT>::RelaDyn->getParent() && !In<ELFT>::RelaDyn->empty()) {1067 if (!InX::RelaDyn->empty()) {
1068 addInSec(InX::RelaDyn->DynamicTag, InX::RelaDyn);
1069 addSize(InX::RelaDyn->SizeDynamicTag, InX::RelaDyn->getParent());
1070
1084 bool IsRela = Config->IsRela;1071 bool IsRela = Config->IsRela;
1085 add({IsRela ? DT_RELA : DT_REL, In<ELFT>::RelaDyn});1072 addInt(IsRela ? DT_RELAENT : DT_RELENT,
1086 add({IsRela ? DT_RELASZ : DT_RELSZ, In<ELFT>::RelaDyn->getParent(),1073 IsRela ? sizeof(Elf_Rela) : sizeof(Elf_Rel));
1087 Entry::SecSize});
1088 add({IsRela ? DT_RELAENT : DT_RELENT,
1089 uint64_t(IsRela ? sizeof(Elf_Rela) : sizeof(Elf_Rel))});
10901074
1091 // MIPS dynamic loader does not support RELCOUNT tag.1075 // MIPS dynamic loader does not support RELCOUNT tag.
1092 // The problem is in the tight relation between dynamic1076 // The problem is in the tight relation between dynamic
1093 // relocations and GOT. So do not emit this tag on MIPS.1077 // relocations and GOT. So do not emit this tag on MIPS.
1094 if (Config->EMachine != EM_MIPS) {1078 if (Config->EMachine != EM_MIPS) {
1095 size_t NumRelativeRels = In<ELFT>::RelaDyn->getRelativeRelocCount();1079 size_t NumRelativeRels = InX::RelaDyn->getRelativeRelocCount();
1096 if (Config->ZCombreloc && NumRelativeRels)1080 if (Config->ZCombreloc && NumRelativeRels)
1097 add({IsRela ? DT_RELACOUNT : DT_RELCOUNT, NumRelativeRels});1081 addInt(IsRela ? DT_RELACOUNT : DT_RELCOUNT, NumRelativeRels);
1098 }1082 }
1099 }1083 }
1100 if (In<ELFT>::RelaPlt->getParent() && !In<ELFT>::RelaPlt->empty()) {1084 // .rel[a].plt section usually consists of two parts, containing plt and
1101 add({DT_JMPREL, In<ELFT>::RelaPlt});1085 // iplt relocations. It is possible to have only iplt relocations in the
1102 add({DT_PLTRELSZ, In<ELFT>::RelaPlt->getParent(), Entry::SecSize});1086 // output. In that case RelaPlt is empty and have zero offset, the same offset
1087 // as RelaIplt have. And we still want to emit proper dynamic tags for that
1088 // case, so here we always use RelaPlt as marker for the begining of
1089 // .rel[a].plt section.
1090 if (InX::RelaPlt->getParent()->Live) {
1091 addInSec(DT_JMPREL, InX::RelaPlt);
1092 addSize(DT_PLTRELSZ, InX::RelaPlt->getParent());
1103 switch (Config->EMachine) {1093 switch (Config->EMachine) {
1104 case EM_MIPS:1094 case EM_MIPS:
1105 add({DT_MIPS_PLTGOT, In<ELFT>::GotPlt});1095 addInSec(DT_MIPS_PLTGOT, InX::GotPlt);
1106 break;1096 break;
1107 case EM_SPARCV9:1097 case EM_SPARCV9:
1108 add({DT_PLTGOT, In<ELFT>::Plt});1098 addInSec(DT_PLTGOT, InX::Plt);
1109 break;1099 break;
1110 default:1100 default:
1111 add({DT_PLTGOT, In<ELFT>::GotPlt});1101 addInSec(DT_PLTGOT, InX::GotPlt);
1112 break;1102 break;
1113 }1103 }
1114 add({DT_PLTREL, uint64_t(Config->IsRela ? DT_RELA : DT_REL)});1104 addInt(DT_PLTREL, Config->IsRela ? DT_RELA : DT_REL);
1115 }1105 }
11161106
1117 add({DT_SYMTAB, InX::DynSymTab});1107 addInSec(DT_SYMTAB, InX::DynSymTab);
1118 add({DT_SYMENT, sizeof(Elf_Sym)});1108 addInt(DT_SYMENT, sizeof(Elf_Sym));
1119 add({DT_STRTAB, InX::DynStrTab});1109 addInSec(DT_STRTAB, InX::DynStrTab);
1120 add({DT_STRSZ, InX::DynStrTab->getSize()});1110 addInt(DT_STRSZ, InX::DynStrTab->getSize());
1121 if (!Config->ZText)1111 if (!Config->ZText)
1122 add({DT_TEXTREL, (uint64_t)0});1112 addInt(DT_TEXTREL, 0);
1123 if (InX::GnuHashTab)1113 if (InX::GnuHashTab)
1124 add({DT_GNU_HASH, InX::GnuHashTab});1114 addInSec(DT_GNU_HASH, InX::GnuHashTab);
1125 if (In<ELFT>::HashTab)1115 if (InX::HashTab)
1126 add({DT_HASH, In<ELFT>::HashTab});1116 addInSec(DT_HASH, InX::HashTab);
11271117
1128 if (Out::PreinitArray) {1118 if (Out::PreinitArray) {
1129 add({DT_PREINIT_ARRAY, Out::PreinitArray});1119 addOutSec(DT_PREINIT_ARRAY, Out::PreinitArray);
1130 add({DT_PREINIT_ARRAYSZ, Out::PreinitArray, Entry::SecSize});1120 addSize(DT_PREINIT_ARRAYSZ, Out::PreinitArray);
1131 }1121 }
1132 if (Out::InitArray) {1122 if (Out::InitArray) {
1133 add({DT_INIT_ARRAY, Out::InitArray});1123 addOutSec(DT_INIT_ARRAY, Out::InitArray);
1134 add({DT_INIT_ARRAYSZ, Out::InitArray, Entry::SecSize});1124 addSize(DT_INIT_ARRAYSZ, Out::InitArray);
1135 }1125 }
1136 if (Out::FiniArray) {1126 if (Out::FiniArray) {
1137 add({DT_FINI_ARRAY, Out::FiniArray});1127 addOutSec(DT_FINI_ARRAY, Out::FiniArray);
1138 add({DT_FINI_ARRAYSZ, Out::FiniArray, Entry::SecSize});1128 addSize(DT_FINI_ARRAYSZ, Out::FiniArray);
1139 }1129 }
11401130
1141 if (SymbolBody *B = Symtab<ELFT>::X->findInCurrentDSO(Config->Init))1131 if (Symbol *B = Symtab->find(Config->Init))
1142 add({DT_INIT, B});1132 if (B->isDefined())
1143 if (SymbolBody *B = Symtab<ELFT>::X->findInCurrentDSO(Config->Fini))1133 addSym(DT_INIT, B);
1144 add({DT_FINI, B});1134 if (Symbol *B = Symtab->find(Config->Fini))
1135 if (B->isDefined())
1136 addSym(DT_FINI, B);
11451137
1146 bool HasVerNeed = In<ELFT>::VerNeed->getNeedNum() != 0;1138 bool HasVerNeed = In<ELFT>::VerNeed->getNeedNum() != 0;
1147 if (HasVerNeed || In<ELFT>::VerDef)1139 if (HasVerNeed || In<ELFT>::VerDef)
1148 add({DT_VERSYM, In<ELFT>::VerSym});1140 addInSec(DT_VERSYM, In<ELFT>::VerSym);
1149 if (In<ELFT>::VerDef) {1141 if (In<ELFT>::VerDef) {
1150 add({DT_VERDEF, In<ELFT>::VerDef});1142 addInSec(DT_VERDEF, In<ELFT>::VerDef);
1151 add({DT_VERDEFNUM, getVerDefNum()});1143 addInt(DT_VERDEFNUM, getVerDefNum());
1152 }1144 }
1153 if (HasVerNeed) {1145 if (HasVerNeed) {
1154 add({DT_VERNEED, In<ELFT>::VerNeed});1146 addInSec(DT_VERNEED, In<ELFT>::VerNeed);
1155 add({DT_VERNEEDNUM, In<ELFT>::VerNeed->getNeedNum()});1147 addInt(DT_VERNEEDNUM, In<ELFT>::VerNeed->getNeedNum());
1156 }1148 }
11571149
1158 if (Config->EMachine == EM_MIPS) {1150 if (Config->EMachine == EM_MIPS) {
1159 add({DT_MIPS_RLD_VERSION, 1});1151 addInt(DT_MIPS_RLD_VERSION, 1);
1160 add({DT_MIPS_FLAGS, RHF_NOTPOT});1152 addInt(DT_MIPS_FLAGS, RHF_NOTPOT);
1161 add({DT_MIPS_BASE_ADDRESS, Config->ImageBase});1153 addInt(DT_MIPS_BASE_ADDRESS, Target->getImageBase());
1162 add({DT_MIPS_SYMTABNO, InX::DynSymTab->getNumSymbols()});1154 addInt(DT_MIPS_SYMTABNO, InX::DynSymTab->getNumSymbols());
1163 add({DT_MIPS_LOCAL_GOTNO, InX::MipsGot->getLocalEntriesNum()});1155
1164 if (const SymbolBody *B = InX::MipsGot->getFirstGlobalEntry())1156 add(DT_MIPS_LOCAL_GOTNO, [] { return InX::MipsGot->getLocalEntriesNum(); });
1165 add({DT_MIPS_GOTSYM, B->DynsymIndex});1157
1158 if (const Symbol *B = InX::MipsGot->getFirstGlobalEntry())
1159 addInt(DT_MIPS_GOTSYM, B->DynsymIndex);
1166 else1160 else
1167 add({DT_MIPS_GOTSYM, InX::DynSymTab->getNumSymbols()});1161 addInt(DT_MIPS_GOTSYM, InX::DynSymTab->getNumSymbols());
1168 add({DT_PLTGOT, InX::MipsGot});1162 addInSec(DT_PLTGOT, InX::MipsGot);
1169 if (InX::MipsRldMap)1163 if (InX::MipsRldMap)
1170 add({DT_MIPS_RLD_MAP, InX::MipsRldMap});1164 addInSec(DT_MIPS_RLD_MAP, InX::MipsRldMap);
1171 }1165 }
11721166
1173 getParent()->Link = this->Link;1167 addInt(DT_NULL, 0);
11741168
1175 // +1 for DT_NULL1169 getParent()->Link = this->Link;
1176 this->Size = (Entries.size() + 1) * this->Entsize;1170 this->Size = Entries.size() * this->Entsize;
1177}1171}
11781172
1179template <class ELFT> void DynamicSection<ELFT>::writeTo(uint8_t *Buf) {1173template <class ELFT> void DynamicSection<ELFT>::writeTo(uint8_t *Buf) {
1180 auto *P = reinterpret_cast<Elf_Dyn *>(Buf);1174 auto *P = reinterpret_cast<Elf_Dyn *>(Buf);
11811175
1182 for (const Entry &E : Entries) {1176 for (std::pair<int32_t, std::function<uint64_t()>> &KV : Entries) {
1183 P->d_tag = E.Tag;1177 P->d_tag = KV.first;
1184 switch (E.Kind) {1178 P->d_un.d_val = KV.second();
1185 case Entry::SecAddr:
1186 P->d_un.d_ptr = E.OutSec->Addr;
1187 break;
1188 case Entry::InSecAddr:
1189 P->d_un.d_ptr = E.InSec->getParent()->Addr + E.InSec->OutSecOff;
1190 break;
1191 case Entry::SecSize:
1192 P->d_un.d_val = E.OutSec->Size;
1193 break;
1194 case Entry::SymAddr:
1195 P->d_un.d_ptr = E.Sym->getVA();
1196 break;
1197 case Entry::PlainInt:
1198 P->d_un.d_val = E.Val;
1199 break;
1200 }
1201 ++P;1179 ++P;
1202 }1180 }
1203}1181}
...@@ -1218,21 +1196,57 @@ uint32_t DynamicReloc::getSymIndex() const {...@@ -1218,21 +1196,57 @@ uint32_t DynamicReloc::getSymIndex() const {
1218 return 0;1196 return 0;
1219}1197}
12201198
1221template <class ELFT>1199RelocationBaseSection::RelocationBaseSection(StringRef Name, uint32_t Type,
1222RelocationSection<ELFT>::RelocationSection(StringRef Name, bool Sort)1200 int32_t DynamicTag,
1223 : SyntheticSection(SHF_ALLOC, Config->IsRela ? SHT_RELA : SHT_REL,1201 int32_t SizeDynamicTag)
1224 Config->Wordsize, Name),1202 : SyntheticSection(SHF_ALLOC, Type, Config->Wordsize, Name),
1225 Sort(Sort) {1203 DynamicTag(DynamicTag), SizeDynamicTag(SizeDynamicTag) {}
1226 this->Entsize = Config->IsRela ? sizeof(Elf_Rela) : sizeof(Elf_Rel);
1227}
12281204
1229template <class ELFT>1205void RelocationBaseSection::addReloc(const DynamicReloc &Reloc) {
1230void RelocationSection<ELFT>::addReloc(const DynamicReloc &Reloc) {
1231 if (Reloc.Type == Target->RelativeRel)1206 if (Reloc.Type == Target->RelativeRel)
1232 ++NumRelativeRelocs;1207 ++NumRelativeRelocs;
1233 Relocs.push_back(Reloc);1208 Relocs.push_back(Reloc);
1234}1209}
12351210
1211void RelocationBaseSection::finalizeContents() {
1212 // If all relocations are R_*_RELATIVE they don't refer to any
1213 // dynamic symbol and we don't need a dynamic symbol table. If that
1214 // is the case, just use 0 as the link.
1215 Link = InX::DynSymTab ? InX::DynSymTab->getParent()->SectionIndex : 0;
1216
1217 // Set required output section properties.
1218 getParent()->Link = Link;
1219}
1220
1221template <class ELFT>
1222static void encodeDynamicReloc(typename ELFT::Rela *P,
1223 const DynamicReloc &Rel) {
1224 if (Config->IsRela)
1225 P->r_addend = Rel.getAddend();
1226 P->r_offset = Rel.getOffset();
1227 if (Config->EMachine == EM_MIPS && Rel.getInputSec() == InX::MipsGot)
1228 // The MIPS GOT section contains dynamic relocations that correspond to TLS
1229 // entries. These entries are placed after the global and local sections of
1230 // the GOT. At the point when we create these relocations, the size of the
1231 // global and local sections is unknown, so the offset that we store in the
1232 // TLS entry's DynamicReloc is relative to the start of the TLS section of
1233 // the GOT, rather than being relative to the start of the GOT. This line of
1234 // code adds the size of the global and local sections to the virtual
1235 // address computed by getOffset() in order to adjust it into the TLS
1236 // section.
1237 P->r_offset += InX::MipsGot->getTlsOffset();
1238 P->setSymbolAndType(Rel.getSymIndex(), Rel.Type, Config->IsMips64EL);
1239}
1240
1241template <class ELFT>
1242RelocationSection<ELFT>::RelocationSection(StringRef Name, bool Sort)
1243 : RelocationBaseSection(Name, Config->IsRela ? SHT_RELA : SHT_REL,
1244 Config->IsRela ? DT_RELA : DT_REL,
1245 Config->IsRela ? DT_RELASZ : DT_RELSZ),
1246 Sort(Sort) {
1247 this->Entsize = Config->IsRela ? sizeof(Elf_Rela) : sizeof(Elf_Rel);
1248}
1249
1236template <class ELFT, class RelTy>1250template <class ELFT, class RelTy>
1237static bool compRelocations(const RelTy &A, const RelTy &B) {1251static bool compRelocations(const RelTy &A, const RelTy &B) {
1238 bool AIsRel = A.getType(Config->IsMips64EL) == Target->RelativeRel;1252 bool AIsRel = A.getType(Config->IsMips64EL) == Target->RelativeRel;
...@@ -1246,18 +1260,8 @@ static bool compRelocations(const RelTy &A, const RelTy &B) {...@@ -1246,18 +1260,8 @@ static bool compRelocations(const RelTy &A, const RelTy &B) {
1246template <class ELFT> void RelocationSection<ELFT>::writeTo(uint8_t *Buf) {1260template <class ELFT> void RelocationSection<ELFT>::writeTo(uint8_t *Buf) {
1247 uint8_t *BufBegin = Buf;1261 uint8_t *BufBegin = Buf;
1248 for (const DynamicReloc &Rel : Relocs) {1262 for (const DynamicReloc &Rel : Relocs) {
1249 auto *P = reinterpret_cast<Elf_Rela *>(Buf);1263 encodeDynamicReloc<ELFT>(reinterpret_cast<Elf_Rela *>(Buf), Rel);
1250 Buf += Config->IsRela ? sizeof(Elf_Rela) : sizeof(Elf_Rel);1264 Buf += Config->IsRela ? sizeof(Elf_Rela) : sizeof(Elf_Rel);
1251
1252 if (Config->IsRela)
1253 P->r_addend = Rel.getAddend();
1254 P->r_offset = Rel.getOffset();
1255 if (Config->EMachine == EM_MIPS && Rel.getInputSec() == InX::MipsGot)
1256 // Dynamic relocation against MIPS GOT section make deal TLS entries
1257 // allocated in the end of the GOT. We need to adjust the offset to take
1258 // in account 'local' and 'global' GOT entries.
1259 P->r_offset += InX::MipsGot->getTlsOffset();
1260 P->setSymbolAndType(Rel.getSymIndex(), Rel.Type, Config->IsMips64EL);
1261 }1265 }
12621266
1263 if (Sort) {1267 if (Sort) {
...@@ -1275,12 +1279,192 @@ template <class ELFT> unsigned RelocationSection<ELFT>::getRelocOffset() {...@@ -1275,12 +1279,192 @@ template <class ELFT> unsigned RelocationSection<ELFT>::getRelocOffset() {
1275 return this->Entsize * Relocs.size();1279 return this->Entsize * Relocs.size();
1276}1280}
12771281
1278template <class ELFT> void RelocationSection<ELFT>::finalizeContents() {1282template <class ELFT>
1279 this->Link = InX::DynSymTab ? InX::DynSymTab->getParent()->SectionIndex1283AndroidPackedRelocationSection<ELFT>::AndroidPackedRelocationSection(
1280 : InX::SymTab->getParent()->SectionIndex;1284 StringRef Name)
1285 : RelocationBaseSection(
1286 Name, Config->IsRela ? SHT_ANDROID_RELA : SHT_ANDROID_REL,
1287 Config->IsRela ? DT_ANDROID_RELA : DT_ANDROID_REL,
1288 Config->IsRela ? DT_ANDROID_RELASZ : DT_ANDROID_RELSZ) {
1289 this->Entsize = 1;
1290}
12811291
1282 // Set required output section properties.1292template <class ELFT>
1283 getParent()->Link = this->Link;1293bool AndroidPackedRelocationSection<ELFT>::updateAllocSize() {
1294 // This function computes the contents of an Android-format packed relocation
1295 // section.
1296 //
1297 // This format compresses relocations by using relocation groups to factor out
1298 // fields that are common between relocations and storing deltas from previous
1299 // relocations in SLEB128 format (which has a short representation for small
1300 // numbers). A good example of a relocation type with common fields is
1301 // R_*_RELATIVE, which is normally used to represent function pointers in
1302 // vtables. In the REL format, each relative relocation has the same r_info
1303 // field, and is only different from other relative relocations in terms of
1304 // the r_offset field. By sorting relocations by offset, grouping them by
1305 // r_info and representing each relocation with only the delta from the
1306 // previous offset, each 8-byte relocation can be compressed to as little as 1
1307 // byte (or less with run-length encoding). This relocation packer was able to
1308 // reduce the size of the relocation section in an Android Chromium DSO from
1309 // 2,911,184 bytes to 174,693 bytes, or 6% of the original size.
1310 //
1311 // A relocation section consists of a header containing the literal bytes
1312 // 'APS2' followed by a sequence of SLEB128-encoded integers. The first two
1313 // elements are the total number of relocations in the section and an initial
1314 // r_offset value. The remaining elements define a sequence of relocation
1315 // groups. Each relocation group starts with a header consisting of the
1316 // following elements:
1317 //
1318 // - the number of relocations in the relocation group
1319 // - flags for the relocation group
1320 // - (if RELOCATION_GROUPED_BY_OFFSET_DELTA_FLAG is set) the r_offset delta
1321 // for each relocation in the group.
1322 // - (if RELOCATION_GROUPED_BY_INFO_FLAG is set) the value of the r_info
1323 // field for each relocation in the group.
1324 // - (if RELOCATION_GROUP_HAS_ADDEND_FLAG and
1325 // RELOCATION_GROUPED_BY_ADDEND_FLAG are set) the r_addend delta for
1326 // each relocation in the group.
1327 //
1328 // Following the relocation group header are descriptions of each of the
1329 // relocations in the group. They consist of the following elements:
1330 //
1331 // - (if RELOCATION_GROUPED_BY_OFFSET_DELTA_FLAG is not set) the r_offset
1332 // delta for this relocation.
1333 // - (if RELOCATION_GROUPED_BY_INFO_FLAG is not set) the value of the r_info
1334 // field for this relocation.
1335 // - (if RELOCATION_GROUP_HAS_ADDEND_FLAG is set and
1336 // RELOCATION_GROUPED_BY_ADDEND_FLAG is not set) the r_addend delta for
1337 // this relocation.
1338
1339 size_t OldSize = RelocData.size();
1340
1341 RelocData = {'A', 'P', 'S', '2'};
1342 raw_svector_ostream OS(RelocData);
1343 auto Add = [&](int64_t V) { encodeSLEB128(V, OS); };
1344
1345 // The format header includes the number of relocations and the initial
1346 // offset (we set this to zero because the first relocation group will
1347 // perform the initial adjustment).
1348 Add(Relocs.size());
1349 Add(0);
1350
1351 std::vector<Elf_Rela> Relatives, NonRelatives;
1352
1353 for (const DynamicReloc &Rel : Relocs) {
1354 Elf_Rela R;
1355 encodeDynamicReloc<ELFT>(&R, Rel);
1356
1357 if (R.getType(Config->IsMips64EL) == Target->RelativeRel)
1358 Relatives.push_back(R);
1359 else
1360 NonRelatives.push_back(R);
1361 }
1362
1363 std::sort(Relatives.begin(), Relatives.end(),
1364 [](const Elf_Rel &A, const Elf_Rel &B) {
1365 return A.r_offset < B.r_offset;
1366 });
1367
1368 // Try to find groups of relative relocations which are spaced one word
1369 // apart from one another. These generally correspond to vtable entries. The
1370 // format allows these groups to be encoded using a sort of run-length
1371 // encoding, but each group will cost 7 bytes in addition to the offset from
1372 // the previous group, so it is only profitable to do this for groups of
1373 // size 8 or larger.
1374 std::vector<Elf_Rela> UngroupedRelatives;
1375 std::vector<std::vector<Elf_Rela>> RelativeGroups;
1376 for (auto I = Relatives.begin(), E = Relatives.end(); I != E;) {
1377 std::vector<Elf_Rela> Group;
1378 do {
1379 Group.push_back(*I++);
1380 } while (I != E && (I - 1)->r_offset + Config->Wordsize == I->r_offset);
1381
1382 if (Group.size() < 8)
1383 UngroupedRelatives.insert(UngroupedRelatives.end(), Group.begin(),
1384 Group.end());
1385 else
1386 RelativeGroups.emplace_back(std::move(Group));
1387 }
1388
1389 unsigned HasAddendIfRela =
1390 Config->IsRela ? RELOCATION_GROUP_HAS_ADDEND_FLAG : 0;
1391
1392 uint64_t Offset = 0;
1393 uint64_t Addend = 0;
1394
1395 // Emit the run-length encoding for the groups of adjacent relative
1396 // relocations. Each group is represented using two groups in the packed
1397 // format. The first is used to set the current offset to the start of the
1398 // group (and also encodes the first relocation), and the second encodes the
1399 // remaining relocations.
1400 for (std::vector<Elf_Rela> &G : RelativeGroups) {
1401 // The first relocation in the group.
1402 Add(1);
1403 Add(RELOCATION_GROUPED_BY_OFFSET_DELTA_FLAG |
1404 RELOCATION_GROUPED_BY_INFO_FLAG | HasAddendIfRela);
1405 Add(G[0].r_offset - Offset);
1406 Add(Target->RelativeRel);
1407 if (Config->IsRela) {
1408 Add(G[0].r_addend - Addend);
1409 Addend = G[0].r_addend;
1410 }
1411
1412 // The remaining relocations.
1413 Add(G.size() - 1);
1414 Add(RELOCATION_GROUPED_BY_OFFSET_DELTA_FLAG |
1415 RELOCATION_GROUPED_BY_INFO_FLAG | HasAddendIfRela);
1416 Add(Config->Wordsize);
1417 Add(Target->RelativeRel);
1418 if (Config->IsRela) {
1419 for (auto I = G.begin() + 1, E = G.end(); I != E; ++I) {
1420 Add(I->r_addend - Addend);
1421 Addend = I->r_addend;
1422 }
1423 }
1424
1425 Offset = G.back().r_offset;
1426 }
1427
1428 // Now the ungrouped relatives.
1429 if (!UngroupedRelatives.empty()) {
1430 Add(UngroupedRelatives.size());
1431 Add(RELOCATION_GROUPED_BY_INFO_FLAG | HasAddendIfRela);
1432 Add(Target->RelativeRel);
1433 for (Elf_Rela &R : UngroupedRelatives) {
1434 Add(R.r_offset - Offset);
1435 Offset = R.r_offset;
1436 if (Config->IsRela) {
1437 Add(R.r_addend - Addend);
1438 Addend = R.r_addend;
1439 }
1440 }
1441 }
1442
1443 // Finally the non-relative relocations.
1444 std::sort(NonRelatives.begin(), NonRelatives.end(),
1445 [](const Elf_Rela &A, const Elf_Rela &B) {
1446 return A.r_offset < B.r_offset;
1447 });
1448 if (!NonRelatives.empty()) {
1449 Add(NonRelatives.size());
1450 Add(HasAddendIfRela);
1451 for (Elf_Rela &R : NonRelatives) {
1452 Add(R.r_offset - Offset);
1453 Offset = R.r_offset;
1454 Add(R.r_info);
1455 if (Config->IsRela) {
1456 Add(R.r_addend - Addend);
1457 Addend = R.r_addend;
1458 }
1459 }
1460 }
1461
1462 // Returns whether the section size changed. We need to keep recomputing both
1463 // section layout and the contents of this section until the size converges
1464 // because changing this section's size can affect section layout, which in
1465 // turn can affect the sizes of the LEB-encoded integers stored in this
1466 // section.
1467 return RelocData.size() != OldSize;
1284}1468}
12851469
1286SymbolTableBaseSection::SymbolTableBaseSection(StringTableSection &StrTabSec)1470SymbolTableBaseSection::SymbolTableBaseSection(StringTableSection &StrTabSec)
...@@ -1299,17 +1483,13 @@ static bool sortMipsSymbols(const SymbolTableEntry &L,...@@ -1299,17 +1483,13 @@ static bool sortMipsSymbols(const SymbolTableEntry &L,
1299 const SymbolTableEntry &R) {1483 const SymbolTableEntry &R) {
1300 // Sort entries related to non-local preemptible symbols by GOT indexes.1484 // Sort entries related to non-local preemptible symbols by GOT indexes.
1301 // All other entries go to the first part of GOT in arbitrary order.1485 // All other entries go to the first part of GOT in arbitrary order.
1302 bool LIsInLocalGot = !L.Symbol->IsInGlobalMipsGot;1486 bool LIsInLocalGot = !L.Sym->IsInGlobalMipsGot;
1303 bool RIsInLocalGot = !R.Symbol->IsInGlobalMipsGot;1487 bool RIsInLocalGot = !R.Sym->IsInGlobalMipsGot;
1304 if (LIsInLocalGot || RIsInLocalGot)1488 if (LIsInLocalGot || RIsInLocalGot)
1305 return !RIsInLocalGot;1489 return !RIsInLocalGot;
1306 return L.Symbol->GotIndex < R.Symbol->GotIndex;1490 return L.Sym->GotIndex < R.Sym->GotIndex;
1307}1491}
13081492
1309// Finalize a symbol table. The ELF spec requires that all local
1310// symbols precede global symbols, so we sort symbol entries in this
1311// function. (For .dynsym, we don't do that because symbols for
1312// dynamic linking are inherently all globals.)
1313void SymbolTableBaseSection::finalizeContents() {1493void SymbolTableBaseSection::finalizeContents() {
1314 getParent()->Link = StrTabSec.getParent()->SectionIndex;1494 getParent()->Link = StrTabSec.getParent()->SectionIndex;
13151495
...@@ -1328,26 +1508,27 @@ void SymbolTableBaseSection::finalizeContents() {...@@ -1328,26 +1508,27 @@ void SymbolTableBaseSection::finalizeContents() {
1328 }1508 }
13291509
1330 size_t I = 0;1510 size_t I = 0;
1331 for (const SymbolTableEntry &S : Symbols)1511 for (const SymbolTableEntry &S : Symbols) S.Sym->DynsymIndex = ++I;
1332 S.Symbol->DynsymIndex = ++I;
1333 return;1512 return;
1334 }1513 }
1335}1514}
13361515
1516// The ELF spec requires that all local symbols precede global symbols, so we
1517// sort symbol entries in this function. (For .dynsym, we don't do that because
1518// symbols for dynamic linking are inherently all globals.)
1337void SymbolTableBaseSection::postThunkContents() {1519void SymbolTableBaseSection::postThunkContents() {
1338 if (this->Type == SHT_DYNSYM)1520 if (this->Type == SHT_DYNSYM)
1339 return;1521 return;
1340 // move all local symbols before global symbols.1522 // move all local symbols before global symbols.
1341 auto It = std::stable_partition(1523 auto It = std::stable_partition(
1342 Symbols.begin(), Symbols.end(), [](const SymbolTableEntry &S) {1524 Symbols.begin(), Symbols.end(), [](const SymbolTableEntry &S) {
1343 return S.Symbol->isLocal() ||1525 return S.Sym->isLocal() || S.Sym->computeBinding() == STB_LOCAL;
1344 S.Symbol->symbol()->computeBinding() == STB_LOCAL;
1345 });1526 });
1346 size_t NumLocals = It - Symbols.begin();1527 size_t NumLocals = It - Symbols.begin();
1347 getParent()->Info = NumLocals + 1;1528 getParent()->Info = NumLocals + 1;
1348}1529}
13491530
1350void SymbolTableBaseSection::addSymbol(SymbolBody *B) {1531void SymbolTableBaseSection::addSymbol(Symbol *B) {
1351 // Adding a local symbol to a .dynsym is a bug.1532 // Adding a local symbol to a .dynsym is a bug.
1352 assert(this->Type != SHT_DYNSYM || !B->isLocal());1533 assert(this->Type != SHT_DYNSYM || !B->isLocal());
13531534
...@@ -1355,19 +1536,25 @@ void SymbolTableBaseSection::addSymbol(SymbolBody *B) {...@@ -1355,19 +1536,25 @@ void SymbolTableBaseSection::addSymbol(SymbolBody *B) {
1355 Symbols.push_back({B, StrTabSec.addString(B->getName(), HashIt)});1536 Symbols.push_back({B, StrTabSec.addString(B->getName(), HashIt)});
1356}1537}
13571538
1358size_t SymbolTableBaseSection::getSymbolIndex(SymbolBody *Body) {1539size_t SymbolTableBaseSection::getSymbolIndex(Symbol *Sym) {
1359 auto I = llvm::find_if(Symbols, [&](const SymbolTableEntry &E) {1540 // Initializes symbol lookup tables lazily. This is used only
1360 if (E.Symbol == Body)1541 // for -r or -emit-relocs.
1361 return true;1542 llvm::call_once(OnceFlag, [&] {
1362 // This is used for -r, so we have to handle multiple section1543 SymbolIndexMap.reserve(Symbols.size());
1363 // symbols being combined.1544 size_t I = 0;
1364 if (Body->Type == STT_SECTION && E.Symbol->Type == STT_SECTION)1545 for (const SymbolTableEntry &E : Symbols) {
1365 return Body->getOutputSection() == E.Symbol->getOutputSection();1546 if (E.Sym->Type == STT_SECTION)
1366 return false;1547 SectionIndexMap[E.Sym->getOutputSection()] = ++I;
1548 else
1549 SymbolIndexMap[E.Sym] = ++I;
1550 }
1367 });1551 });
1368 if (I == Symbols.end())1552
1369 return 0;1553 // Section symbols are mapped based on their output sections
1370 return I - Symbols.begin() + 1;1554 // to maintain their semantics.
1555 if (Sym->Type == STT_SECTION)
1556 return SectionIndexMap.lookup(Sym->getOutputSection());
1557 return SymbolIndexMap.lookup(Sym);
1371}1558}
13721559
1373template <class ELFT>1560template <class ELFT>
...@@ -1379,46 +1566,56 @@ SymbolTableSection<ELFT>::SymbolTableSection(StringTableSection &StrTabSec)...@@ -1379,46 +1566,56 @@ SymbolTableSection<ELFT>::SymbolTableSection(StringTableSection &StrTabSec)
1379// Write the internal symbol table contents to the output symbol table.1566// Write the internal symbol table contents to the output symbol table.
1380template <class ELFT> void SymbolTableSection<ELFT>::writeTo(uint8_t *Buf) {1567template <class ELFT> void SymbolTableSection<ELFT>::writeTo(uint8_t *Buf) {
1381 // The first entry is a null entry as per the ELF spec.1568 // The first entry is a null entry as per the ELF spec.
1569 memset(Buf, 0, sizeof(Elf_Sym));
1382 Buf += sizeof(Elf_Sym);1570 Buf += sizeof(Elf_Sym);
13831571
1384 auto *ESym = reinterpret_cast<Elf_Sym *>(Buf);1572 auto *ESym = reinterpret_cast<Elf_Sym *>(Buf);
13851573
1386 for (SymbolTableEntry &Ent : Symbols) {1574 for (SymbolTableEntry &Ent : Symbols) {
1387 SymbolBody *Body = Ent.Symbol;1575 Symbol *Sym = Ent.Sym;
13881576
1389 // Set st_info and st_other.1577 // Set st_info and st_other.
1390 if (Body->isLocal()) {1578 ESym->st_other = 0;
1391 ESym->setBindingAndType(STB_LOCAL, Body->Type);1579 if (Sym->isLocal()) {
1580 ESym->setBindingAndType(STB_LOCAL, Sym->Type);
1392 } else {1581 } else {
1393 ESym->setBindingAndType(Body->symbol()->computeBinding(), Body->Type);1582 ESym->setBindingAndType(Sym->computeBinding(), Sym->Type);
1394 ESym->setVisibility(Body->symbol()->Visibility);1583 ESym->setVisibility(Sym->Visibility);
1395 }1584 }
13961585
1397 ESym->st_name = Ent.StrTabOffset;1586 ESym->st_name = Ent.StrTabOffset;
13981587
1399 // Set a section index.1588 // Set a section index.
1400 if (const OutputSection *OutSec = Body->getOutputSection())1589 BssSection *CommonSec = nullptr;
1590 if (!Config->DefineCommon)
1591 if (auto *D = dyn_cast<Defined>(Sym))
1592 CommonSec = dyn_cast_or_null<BssSection>(D->Section);
1593 if (CommonSec)
1594 ESym->st_shndx = SHN_COMMON;
1595 else if (const OutputSection *OutSec = Sym->getOutputSection())
1401 ESym->st_shndx = OutSec->SectionIndex;1596 ESym->st_shndx = OutSec->SectionIndex;
1402 else if (isa<DefinedRegular>(Body))1597 else if (isa<Defined>(Sym))
1403 ESym->st_shndx = SHN_ABS;1598 ESym->st_shndx = SHN_ABS;
1404 else if (isa<DefinedCommon>(Body))1599 else
1405 ESym->st_shndx = SHN_COMMON;1600 ESym->st_shndx = SHN_UNDEF;
14061601
1407 // Copy symbol size if it is a defined symbol. st_size is not significant1602 // Copy symbol size if it is a defined symbol. st_size is not significant
1408 // for undefined symbols, so whether copying it or not is up to us if that's1603 // for undefined symbols, so whether copying it or not is up to us if that's
1409 // the case. We'll leave it as zero because by not setting a value, we can1604 // the case. We'll leave it as zero because by not setting a value, we can
1410 // get the exact same outputs for two sets of input files that differ only1605 // get the exact same outputs for two sets of input files that differ only
1411 // in undefined symbol size in DSOs.1606 // in undefined symbol size in DSOs.
1412 if (ESym->st_shndx != SHN_UNDEF)1607 if (ESym->st_shndx == SHN_UNDEF)
1413 ESym->st_size = Body->getSize<ELFT>();1608 ESym->st_size = 0;
1609 else
1610 ESym->st_size = Sym->getSize();
14141611
1415 // st_value is usually an address of a symbol, but that has a1612 // st_value is usually an address of a symbol, but that has a
1416 // special meaining for uninstantiated common symbols (this can1613 // special meaining for uninstantiated common symbols (this can
1417 // occur if -r is given).1614 // occur if -r is given).
1418 if (!Config->DefineCommon && isa<DefinedCommon>(Body))1615 if (CommonSec)
1419 ESym->st_value = cast<DefinedCommon>(Body)->Alignment;1616 ESym->st_value = CommonSec->Alignment;
1420 else1617 else
1421 ESym->st_value = Body->getVA();1618 ESym->st_value = Sym->getVA();
14221619
1423 ++ESym;1620 ++ESym;
1424 }1621 }
...@@ -1431,13 +1628,22 @@ template <class ELFT> void SymbolTableSection<ELFT>::writeTo(uint8_t *Buf) {...@@ -1431,13 +1628,22 @@ template <class ELFT> void SymbolTableSection<ELFT>::writeTo(uint8_t *Buf) {
1431 auto *ESym = reinterpret_cast<Elf_Sym *>(Buf);1628 auto *ESym = reinterpret_cast<Elf_Sym *>(Buf);
14321629
1433 for (SymbolTableEntry &Ent : Symbols) {1630 for (SymbolTableEntry &Ent : Symbols) {
1434 SymbolBody *Body = Ent.Symbol;1631 Symbol *Sym = Ent.Sym;
1435 if (Body->isInPlt() && Body->NeedsPltAddr)1632 if (Sym->isInPlt() && Sym->NeedsPltAddr)
1436 ESym->st_other |= STO_MIPS_PLT;1633 ESym->st_other |= STO_MIPS_PLT;
14371634 if (isMicroMips()) {
1635 // Set STO_MIPS_MICROMIPS flag and less-significant bit for
1636 // defined microMIPS symbols and shared symbols with PLT record.
1637 if ((Sym->isDefined() && (Sym->StOther & STO_MIPS_MICROMIPS)) ||
1638 (Sym->isShared() && Sym->NeedsPltAddr)) {
1639 if (StrTabSec.isDynamic())
1640 ESym->st_value |= 1;
1641 ESym->st_other |= STO_MIPS_MICROMIPS;
1642 }
1643 }
1438 if (Config->Relocatable)1644 if (Config->Relocatable)
1439 if (auto *D = dyn_cast<DefinedRegular>(Body))1645 if (auto *D = dyn_cast<Defined>(Sym))
1440 if (D->isMipsPIC<ELFT>())1646 if (isMipsPIC<ELFT>(D))
1441 ESym->st_other |= STO_MIPS_PIC;1647 ESym->st_other |= STO_MIPS_PIC;
1442 ++ESym;1648 ++ESym;
1443 }1649 }
...@@ -1496,12 +1702,16 @@ void GnuHashTableSection::finalizeContents() {...@@ -1496,12 +1702,16 @@ void GnuHashTableSection::finalizeContents() {
1496}1702}
14971703
1498void GnuHashTableSection::writeTo(uint8_t *Buf) {1704void GnuHashTableSection::writeTo(uint8_t *Buf) {
1705 // The output buffer is not guaranteed to be zero-cleared because we pre-
1706 // fill executable sections with trap instructions. This is a precaution
1707 // for that case, which happens only when -no-rosegment is given.
1708 memset(Buf, 0, Size);
1709
1499 // Write a header.1710 // Write a header.
1500 write32(Buf, NBuckets, Config->Endianness);1711 write32(Buf, NBuckets);
1501 write32(Buf + 4, InX::DynSymTab->getNumSymbols() - Symbols.size(),1712 write32(Buf + 4, InX::DynSymTab->getNumSymbols() - Symbols.size());
1502 Config->Endianness);1713 write32(Buf + 8, MaskWords);
1503 write32(Buf + 8, MaskWords, Config->Endianness);1714 write32(Buf + 12, getShift2());
1504 write32(Buf + 12, getShift2(), Config->Endianness);
1505 Buf += 16;1715 Buf += 16;
15061716
1507 // Write a bloom filter and a hash table.1717 // Write a bloom filter and a hash table.
...@@ -1529,29 +1739,24 @@ void GnuHashTableSection::writeBloomFilter(uint8_t *Buf) {...@@ -1529,29 +1739,24 @@ void GnuHashTableSection::writeBloomFilter(uint8_t *Buf) {
1529}1739}
15301740
1531void GnuHashTableSection::writeHashTable(uint8_t *Buf) {1741void GnuHashTableSection::writeHashTable(uint8_t *Buf) {
1532 // Group symbols by hash value.
1533 std::vector<std::vector<Entry>> Syms(NBuckets);
1534 for (const Entry &Ent : Symbols)
1535 Syms[Ent.Hash % NBuckets].push_back(Ent);
1536
1537 // Write hash buckets. Hash buckets contain indices in the following
1538 // hash value table.
1539 uint32_t *Buckets = reinterpret_cast<uint32_t *>(Buf);1742 uint32_t *Buckets = reinterpret_cast<uint32_t *>(Buf);
1540 for (size_t I = 0; I < NBuckets; ++I)1743 uint32_t OldBucket = -1;
1541 if (!Syms[I].empty())
1542 write32(Buckets + I, Syms[I][0].Body->DynsymIndex, Config->Endianness);
1543
1544 // Write a hash value table. It represents a sequence of chains that
1545 // share the same hash modulo value. The last element of each chain
1546 // is terminated by LSB 1.
1547 uint32_t *Values = Buckets + NBuckets;1744 uint32_t *Values = Buckets + NBuckets;
1548 size_t I = 0;1745 for (auto I = Symbols.begin(), E = Symbols.end(); I != E; ++I) {
1549 for (std::vector<Entry> &Vec : Syms) {1746 // Write a hash value. It represents a sequence of chains that share the
1550 if (Vec.empty())1747 // same hash modulo value. The last element of each chain is terminated by
1748 // LSB 1.
1749 uint32_t Hash = I->Hash;
1750 bool IsLastInChain = (I + 1) == E || I->BucketIdx != (I + 1)->BucketIdx;
1751 Hash = IsLastInChain ? Hash | 1 : Hash & ~1;
1752 write32(Values++, Hash);
1753
1754 if (I->BucketIdx == OldBucket)
1551 continue;1755 continue;
1552 for (const Entry &Ent : makeArrayRef(Vec).drop_back())1756 // Write a hash bucket. Hash buckets contain indices in the following hash
1553 write32(Values + I++, Ent.Hash & ~1, Config->Endianness);1757 // value table.
1554 write32(Values + I++, Vec.back().Hash | 1, Config->Endianness);1758 write32(Buckets + I->BucketIdx, I->Sym->DynsymIndex);
1759 OldBucket = I->BucketIdx;
1555 }1760 }
1556}1761}
15571762
...@@ -1562,22 +1767,6 @@ static uint32_t hashGnu(StringRef Name) {...@@ -1562,22 +1767,6 @@ static uint32_t hashGnu(StringRef Name) {
1562 return H;1767 return H;
1563}1768}
15641769
1565// Returns a number of hash buckets to accomodate given number of elements.
1566// We want to choose a moderate number that is not too small (which
1567// causes too many hash collisions) and not too large (which wastes
1568// disk space.)
1569//
1570// We return a prime number because it (is believed to) achieve good
1571// hash distribution.
1572static size_t getBucketSize(size_t NumSymbols) {
1573 // List of largest prime numbers that are not greater than 2^n + 1.
1574 for (size_t N : {131071, 65521, 32749, 16381, 8191, 4093, 2039, 1021, 509,
1575 251, 127, 61, 31, 13, 7, 3, 1})
1576 if (N <= NumSymbols)
1577 return N;
1578 return 0;
1579}
1580
1581// Add symbols to this symbol hash table. Note that this function1770// Add symbols to this symbol hash table. Note that this function
1582// destructively sort a given vector -- which is needed because1771// destructively sort a given vector -- which is needed because
1583// GNU-style hash table places some sorting requirements.1772// GNU-style hash table places some sorting requirements.
...@@ -1586,66 +1775,73 @@ void GnuHashTableSection::addSymbols(std::vector<SymbolTableEntry> &V) {...@@ -1586,66 +1775,73 @@ void GnuHashTableSection::addSymbols(std::vector<SymbolTableEntry> &V) {
1586 // its type correctly.1775 // its type correctly.
1587 std::vector<SymbolTableEntry>::iterator Mid =1776 std::vector<SymbolTableEntry>::iterator Mid =
1588 std::stable_partition(V.begin(), V.end(), [](const SymbolTableEntry &S) {1777 std::stable_partition(V.begin(), V.end(), [](const SymbolTableEntry &S) {
1589 return S.Symbol->isUndefined();1778 // Shared symbols that this executable preempts are special. The dynamic
1779 // linker has to look them up, so they have to be in the hash table.
1780 if (auto *SS = dyn_cast<SharedSymbol>(S.Sym))
1781 return SS->CopyRelSec == nullptr && !SS->NeedsPltAddr;
1782 return !S.Sym->isDefined();
1590 });1783 });
1591 if (Mid == V.end())1784 if (Mid == V.end())
1592 return;1785 return;
15931786
1787 // We chose load factor 4 for the on-disk hash table. For each hash
1788 // collision, the dynamic linker will compare a uint32_t hash value.
1789 // Since the integer comparison is quite fast, we believe we can make
1790 // the load factor even larger. 4 is just a conservative choice.
1791 NBuckets = std::max<size_t>((V.end() - Mid) / 4, 1);
1792
1594 for (SymbolTableEntry &Ent : llvm::make_range(Mid, V.end())) {1793 for (SymbolTableEntry &Ent : llvm::make_range(Mid, V.end())) {
1595 SymbolBody *B = Ent.Symbol;1794 Symbol *B = Ent.Sym;
1596 Symbols.push_back({B, Ent.StrTabOffset, hashGnu(B->getName())});1795 uint32_t Hash = hashGnu(B->getName());
1796 uint32_t BucketIdx = Hash % NBuckets;
1797 Symbols.push_back({B, Ent.StrTabOffset, Hash, BucketIdx});
1597 }1798 }
15981799
1599 NBuckets = getBucketSize(Symbols.size());1800 std::stable_sort(
1600 std::stable_sort(Symbols.begin(), Symbols.end(),1801 Symbols.begin(), Symbols.end(),
1601 [&](const Entry &L, const Entry &R) {1802 [](const Entry &L, const Entry &R) { return L.BucketIdx < R.BucketIdx; });
1602 return L.Hash % NBuckets < R.Hash % NBuckets;
1603 });
16041803
1605 V.erase(Mid, V.end());1804 V.erase(Mid, V.end());
1606 for (const Entry &Ent : Symbols)1805 for (const Entry &Ent : Symbols)
1607 V.push_back({Ent.Body, Ent.StrTabOffset});1806 V.push_back({Ent.Sym, Ent.StrTabOffset});
1608}1807}
16091808
1610template <class ELFT>1809HashTableSection::HashTableSection()
1611HashTableSection<ELFT>::HashTableSection()
1612 : SyntheticSection(SHF_ALLOC, SHT_HASH, 4, ".hash") {1810 : SyntheticSection(SHF_ALLOC, SHT_HASH, 4, ".hash") {
1613 this->Entsize = 4;1811 this->Entsize = 4;
1614}1812}
16151813
1616template <class ELFT> void HashTableSection<ELFT>::finalizeContents() {1814void HashTableSection::finalizeContents() {
1617 getParent()->Link = InX::DynSymTab->getParent()->SectionIndex;1815 getParent()->Link = InX::DynSymTab->getParent()->SectionIndex;
16181816
1619 unsigned NumEntries = 2; // nbucket and nchain.1817 unsigned NumEntries = 2; // nbucket and nchain.
1620 NumEntries += InX::DynSymTab->getNumSymbols(); // The chain entries.1818 NumEntries += InX::DynSymTab->getNumSymbols(); // The chain entries.
16211819
1622 // Create as many buckets as there are symbols.1820 // Create as many buckets as there are symbols.
1623 // FIXME: This is simplistic. We can try to optimize it, but implementing
1624 // support for SHT_GNU_HASH is probably even more profitable.
1625 NumEntries += InX::DynSymTab->getNumSymbols();1821 NumEntries += InX::DynSymTab->getNumSymbols();
1626 this->Size = NumEntries * 4;1822 this->Size = NumEntries * 4;
1627}1823}
16281824
1629template <class ELFT> void HashTableSection<ELFT>::writeTo(uint8_t *Buf) {1825void HashTableSection::writeTo(uint8_t *Buf) {
1630 // A 32-bit integer type in the target endianness.1826 // See comment in GnuHashTableSection::writeTo.
1631 typedef typename ELFT::Word Elf_Word;1827 memset(Buf, 0, Size);
16321828
1633 unsigned NumSymbols = InX::DynSymTab->getNumSymbols();1829 unsigned NumSymbols = InX::DynSymTab->getNumSymbols();
16341830
1635 auto *P = reinterpret_cast<Elf_Word *>(Buf);1831 uint32_t *P = reinterpret_cast<uint32_t *>(Buf);
1636 *P++ = NumSymbols; // nbucket1832 write32(P++, NumSymbols); // nbucket
1637 *P++ = NumSymbols; // nchain1833 write32(P++, NumSymbols); // nchain
16381834
1639 Elf_Word *Buckets = P;1835 uint32_t *Buckets = P;
1640 Elf_Word *Chains = P + NumSymbols;1836 uint32_t *Chains = P + NumSymbols;
16411837
1642 for (const SymbolTableEntry &S : InX::DynSymTab->getSymbols()) {1838 for (const SymbolTableEntry &S : InX::DynSymTab->getSymbols()) {
1643 SymbolBody *Body = S.Symbol;1839 Symbol *Sym = S.Sym;
1644 StringRef Name = Body->getName();1840 StringRef Name = Sym->getName();
1645 unsigned I = Body->DynsymIndex;1841 unsigned I = Sym->DynsymIndex;
1646 uint32_t Hash = hashSysV(Name) % NumSymbols;1842 uint32_t Hash = hashSysV(Name) % NumSymbols;
1647 Chains[I] = Buckets[Hash];1843 Chains[I] = Buckets[Hash];
1648 Buckets[Hash] = I;1844 write32(Buckets + Hash, I);
1649 }1845 }
1650}1846}
16511847
...@@ -1668,7 +1864,7 @@ void PltSection::writeTo(uint8_t *Buf) {...@@ -1668,7 +1864,7 @@ void PltSection::writeTo(uint8_t *Buf) {
1668 unsigned PltOff = getPltRelocOff();1864 unsigned PltOff = getPltRelocOff();
16691865
1670 for (auto &I : Entries) {1866 for (auto &I : Entries) {
1671 const SymbolBody *B = I.first;1867 const Symbol *B = I.first;
1672 unsigned RelOff = I.second + PltOff;1868 unsigned RelOff = I.second + PltOff;
1673 uint64_t Got = B->getGotPltVA();1869 uint64_t Got = B->getGotPltVA();
1674 uint64_t Plt = this->getVA() + Off;1870 uint64_t Plt = this->getVA() + Off;
...@@ -1677,14 +1873,15 @@ void PltSection::writeTo(uint8_t *Buf) {...@@ -1677,14 +1873,15 @@ void PltSection::writeTo(uint8_t *Buf) {
1677 }1873 }
1678}1874}
16791875
1680template <class ELFT> void PltSection::addEntry(SymbolBody &Sym) {1876template <class ELFT> void PltSection::addEntry(Symbol &Sym) {
1681 Sym.PltIndex = Entries.size();1877 Sym.PltIndex = Entries.size();
1682 RelocationSection<ELFT> *PltRelocSection = In<ELFT>::RelaPlt;1878 RelocationBaseSection *PltRelocSection = InX::RelaPlt;
1683 if (HeaderSize == 0) {1879 if (HeaderSize == 0) {
1684 PltRelocSection = In<ELFT>::RelaIplt;1880 PltRelocSection = InX::RelaIplt;
1685 Sym.IsInIplt = true;1881 Sym.IsInIplt = true;
1686 }1882 }
1687 unsigned RelOff = PltRelocSection->getRelocOffset();1883 unsigned RelOff =
1884 static_cast<RelocationSection<ELFT> *>(PltRelocSection)->getRelocOffset();
1688 Entries.push_back(std::make_pair(&Sym, RelOff));1885 Entries.push_back(std::make_pair(&Sym, RelOff));
1689}1886}
16901887
...@@ -1697,10 +1894,10 @@ size_t PltSection::getSize() const {...@@ -1697,10 +1894,10 @@ size_t PltSection::getSize() const {
1697void PltSection::addSymbols() {1894void PltSection::addSymbols() {
1698 // The PLT may have symbols defined for the Header, the IPLT has no header1895 // The PLT may have symbols defined for the Header, the IPLT has no header
1699 if (HeaderSize != 0)1896 if (HeaderSize != 0)
1700 Target->addPltHeaderSymbols(this);1897 Target->addPltHeaderSymbols(*this);
1701 size_t Off = HeaderSize;1898 size_t Off = HeaderSize;
1702 for (size_t I = 0; I < Entries.size(); ++I) {1899 for (size_t I = 0; I < Entries.size(); ++I) {
1703 Target->addPltSymbols(this, Off);1900 Target->addPltSymbols(*this, Off);
1704 Off += Target->PltEntrySize;1901 Off += Target->PltEntrySize;
1705 }1902 }
1706}1903}
...@@ -1709,35 +1906,29 @@ unsigned PltSection::getPltRelocOff() const {...@@ -1709,35 +1906,29 @@ unsigned PltSection::getPltRelocOff() const {
1709 return (HeaderSize == 0) ? InX::Plt->getSize() : 0;1906 return (HeaderSize == 0) ? InX::Plt->getSize() : 0;
1710}1907}
17111908
1712GdbIndexSection::GdbIndexSection(std::vector<GdbIndexChunk> &&Chunks)1909// The string hash function for .gdb_index.
1713 : SyntheticSection(0, SHT_PROGBITS, 1, ".gdb_index"),1910static uint32_t computeGdbHash(StringRef S) {
1714 StringPool(llvm::StringTableBuilder::ELF), Chunks(std::move(Chunks)) {}1911 uint32_t H = 0;
17151912 for (uint8_t C : S)
1716// Iterative hash function for symbol's name is described in .gdb_index format1913 H = H * 67 + tolower(C) - 113;
1717// specification. Note that we use one for version 5 to 7 here, it is different1914 return H;
1718// for version 4.
1719static uint32_t hash(StringRef Str) {
1720 uint32_t R = 0;
1721 for (uint8_t C : Str)
1722 R = R * 67 + tolower(C) - 113;
1723 return R;
1724}1915}
17251916
1726static std::vector<CompilationUnitEntry> readCuList(DWARFContext &Dwarf) {1917static std::vector<GdbIndexChunk::CuEntry> readCuList(DWARFContext &Dwarf) {
1727 std::vector<CompilationUnitEntry> Ret;1918 std::vector<GdbIndexChunk::CuEntry> Ret;
1728 for (std::unique_ptr<DWARFCompileUnit> &CU : Dwarf.compile_units())1919 for (std::unique_ptr<DWARFCompileUnit> &Cu : Dwarf.compile_units())
1729 Ret.push_back({CU->getOffset(), CU->getLength() + 4});1920 Ret.push_back({Cu->getOffset(), Cu->getLength() + 4});
1730 return Ret;1921 return Ret;
1731}1922}
17321923
1733static std::vector<AddressEntry> readAddressArea(DWARFContext &Dwarf,1924static std::vector<GdbIndexChunk::AddressEntry>
1734 InputSection *Sec) {1925readAddressAreas(DWARFContext &Dwarf, InputSection *Sec) {
1735 std::vector<AddressEntry> Ret;1926 std::vector<GdbIndexChunk::AddressEntry> Ret;
17361927
1737 uint32_t CurrentCu = 0;1928 uint32_t CuIdx = 0;
1738 for (std::unique_ptr<DWARFCompileUnit> &CU : Dwarf.compile_units()) {1929 for (std::unique_ptr<DWARFCompileUnit> &Cu : Dwarf.compile_units()) {
1739 DWARFAddressRangesVector Ranges;1930 DWARFAddressRangesVector Ranges;
1740 CU->collectAddressRanges(Ranges);1931 Cu->collectAddressRanges(Ranges);
17411932
1742 ArrayRef<InputSectionBase *> Sections = Sec->File->getSections();1933 ArrayRef<InputSectionBase *> Sections = Sec->File->getSections();
1743 for (DWARFAddressRange &R : Ranges) {1934 for (DWARFAddressRange &R : Ranges) {
...@@ -1747,24 +1938,29 @@ static std::vector<AddressEntry> readAddressArea(DWARFContext &Dwarf,...@@ -1747,24 +1938,29 @@ static std::vector<AddressEntry> readAddressArea(DWARFContext &Dwarf,
1747 // Range list with zero size has no effect.1938 // Range list with zero size has no effect.
1748 if (R.LowPC == R.HighPC)1939 if (R.LowPC == R.HighPC)
1749 continue;1940 continue;
1750 Ret.push_back({cast<InputSection>(S), R.LowPC, R.HighPC, CurrentCu});1941 auto *IS = cast<InputSection>(S);
1942 uint64_t Offset = IS->getOffsetInFile();
1943 Ret.push_back({IS, R.LowPC - Offset, R.HighPC - Offset, CuIdx});
1751 }1944 }
1752 ++CurrentCu;1945 ++CuIdx;
1753 }1946 }
1754 return Ret;1947 return Ret;
1755}1948}
17561949
1757static std::vector<NameTypeEntry> readPubNamesAndTypes(DWARFContext &Dwarf,1950static std::vector<GdbIndexChunk::NameTypeEntry>
1758 bool IsLE) {1951readPubNamesAndTypes(DWARFContext &Dwarf) {
1759 StringRef Data[] = {Dwarf.getGnuPubNamesSection(),1952 StringRef Sec1 = Dwarf.getDWARFObj().getGnuPubNamesSection();
1760 Dwarf.getGnuPubTypesSection()};1953 StringRef Sec2 = Dwarf.getDWARFObj().getGnuPubTypesSection();
17611954
1762 std::vector<NameTypeEntry> Ret;1955 std::vector<GdbIndexChunk::NameTypeEntry> Ret;
1763 for (StringRef D : Data) {1956 for (StringRef Sec : {Sec1, Sec2}) {
1764 DWARFDebugPubTable PubTable(D, IsLE, true);1957 DWARFDebugPubTable Table(Sec, Config->IsLE, true);
1765 for (const DWARFDebugPubTable::Set &Set : PubTable.getData())1958 for (const DWARFDebugPubTable::Set &Set : Table.getData()) {
1766 for (const DWARFDebugPubTable::Entry &Ent : Set.Entries)1959 for (const DWARFDebugPubTable::Entry &Ent : Set.Entries) {
1767 Ret.push_back({Ent.Name, Ent.Descriptor.toBits()});1960 CachedHashStringRef S(Ent.Name, computeGdbHash(Ent.Name));
1961 Ret.push_back({S, Ent.Descriptor.toBits()});
1962 }
1963 }
1768 }1964 }
1769 return Ret;1965 return Ret;
1770}1966}
...@@ -1778,119 +1974,140 @@ static std::vector<InputSection *> getDebugInfoSections() {...@@ -1778,119 +1974,140 @@ static std::vector<InputSection *> getDebugInfoSections() {
1778 return Ret;1974 return Ret;
1779}1975}
17801976
1781void GdbIndexSection::buildIndex() {1977void GdbIndexSection::fixCuIndex() {
1782 if (Chunks.empty())1978 uint32_t Idx = 0;
1783 return;1979 for (GdbIndexChunk &Chunk : Chunks) {
1980 for (GdbIndexChunk::AddressEntry &Ent : Chunk.AddressAreas)
1981 Ent.CuIndex += Idx;
1982 Idx += Chunk.CompilationUnits.size();
1983 }
1984}
17841985
1785 uint32_t CuId = 0;1986std::vector<std::vector<uint32_t>> GdbIndexSection::createCuVectors() {
1786 for (GdbIndexChunk &D : Chunks) {1987 std::vector<std::vector<uint32_t>> Ret;
1787 for (AddressEntry &E : D.AddressArea)1988 uint32_t Idx = 0;
1788 E.CuIndex += CuId;1989 uint32_t Off = 0;
17891990
1790 // Populate constant pool area.1991 for (GdbIndexChunk &Chunk : Chunks) {
1791 for (NameTypeEntry &NameType : D.NamesAndTypes) {1992 for (GdbIndexChunk::NameTypeEntry &Ent : Chunk.NamesAndTypes) {
1792 uint32_t Hash = hash(NameType.Name);1993 GdbSymbol *&Sym = Symbols[Ent.Name];
1793 size_t Offset = StringPool.add(NameType.Name);1994 if (!Sym) {
17941995 Sym = make<GdbSymbol>(GdbSymbol{Ent.Name.hash(), Off, Ret.size()});
1795 bool IsNew;1996 Off += Ent.Name.size() + 1;
1796 GdbSymbol *Sym;1997 Ret.push_back({});
1797 std::tie(IsNew, Sym) = SymbolTable.add(Hash, Offset);
1798 if (IsNew) {
1799 Sym->CuVectorIndex = CuVectors.size();
1800 CuVectors.resize(CuVectors.size() + 1);
1801 }1998 }
18021999
1803 CuVectors[Sym->CuVectorIndex].insert(CuId | (NameType.Type << 24));2000 // gcc 5.4.1 produces a buggy .debug_gnu_pubnames that contains
2001 // duplicate entries, so we want to dedup them.
2002 std::vector<uint32_t> &Vec = Ret[Sym->CuVectorIndex];
2003 uint32_t Val = (Ent.Type << 24) | Idx;
2004 if (Vec.empty() || Vec.back() != Val)
2005 Vec.push_back(Val);
1804 }2006 }
18052007 Idx += Chunk.CompilationUnits.size();
1806 CuId += D.CompilationUnits.size();
1807 }2008 }
1808}
18092009
1810static GdbIndexChunk readDwarf(DWARFContextInMemory &Dwarf, InputSection *Sec) {2010 StringPoolSize = Off;
1811 GdbIndexChunk Ret;
1812 Ret.DebugInfoSec = Sec;
1813 Ret.CompilationUnits = readCuList(Dwarf);
1814 Ret.AddressArea = readAddressArea(Dwarf, Sec);
1815 Ret.NamesAndTypes = readPubNamesAndTypes(Dwarf, Config->IsLE);
1816 return Ret;2011 return Ret;
1817}2012}
18182013
1819template <class ELFT> GdbIndexSection *elf::createGdbIndex() {2014template <class ELFT> GdbIndexSection *elf::createGdbIndex() {
1820 std::vector<GdbIndexChunk> Chunks;2015 // Gather debug info to create a .gdb_index section.
1821 for (InputSection *Sec : getDebugInfoSections()) {2016 std::vector<InputSection *> Sections = getDebugInfoSections();
1822 InputFile *F = Sec->File;2017 std::vector<GdbIndexChunk> Chunks(Sections.size());
1823 std::error_code EC;2018
1824 ELFObjectFile<ELFT> Obj(F->MB, EC);2019 parallelForEachN(0, Chunks.size(), [&](size_t I) {
1825 if (EC)2020 ObjFile<ELFT> *File = Sections[I]->getFile<ELFT>();
1826 fatal(EC.message());2021 DWARFContext Dwarf(make_unique<LLDDwarfObj<ELFT>>(File));
1827 DWARFContextInMemory Dwarf(Obj, nullptr, [&](Error E) {2022
1828 error(toString(F) + ": error parsing DWARF data:\n>>> " +2023 Chunks[I].DebugInfoSec = Sections[I];
1829 toString(std::move(E)));2024 Chunks[I].CompilationUnits = readCuList(Dwarf);
1830 return ErrorPolicy::Continue;2025 Chunks[I].AddressAreas = readAddressAreas(Dwarf, Sections[I]);
1831 });2026 Chunks[I].NamesAndTypes = readPubNamesAndTypes(Dwarf);
1832 Chunks.push_back(readDwarf(Dwarf, Sec));2027 });
1833 }2028
2029 // .debug_gnu_pub{names,types} are useless in executables.
2030 // They are present in input object files solely for creating
2031 // a .gdb_index. So we can remove it from the output.
2032 for (InputSectionBase *S : InputSections)
2033 if (S->Name == ".debug_gnu_pubnames" || S->Name == ".debug_gnu_pubtypes")
2034 S->Live = false;
2035
2036 // Create a .gdb_index and returns it.
1834 return make<GdbIndexSection>(std::move(Chunks));2037 return make<GdbIndexSection>(std::move(Chunks));
1835}2038}
18362039
1837static size_t getCuSize(std::vector<GdbIndexChunk> &C) {2040static size_t getCuSize(ArrayRef<GdbIndexChunk> Arr) {
1838 size_t Ret = 0;2041 size_t Ret = 0;
1839 for (GdbIndexChunk &D : C)2042 for (const GdbIndexChunk &D : Arr)
1840 Ret += D.CompilationUnits.size();2043 Ret += D.CompilationUnits.size();
1841 return Ret;2044 return Ret;
1842}2045}
18432046
1844static size_t getAddressAreaSize(std::vector<GdbIndexChunk> &C) {2047static size_t getAddressAreaSize(ArrayRef<GdbIndexChunk> Arr) {
1845 size_t Ret = 0;2048 size_t Ret = 0;
1846 for (GdbIndexChunk &D : C)2049 for (const GdbIndexChunk &D : Arr)
1847 Ret += D.AddressArea.size();2050 Ret += D.AddressAreas.size();
1848 return Ret;2051 return Ret;
1849}2052}
18502053
1851void GdbIndexSection::finalizeContents() {2054std::vector<GdbSymbol *> GdbIndexSection::createGdbSymtab() {
1852 if (Finalized)2055 uint32_t Size = NextPowerOf2(Symbols.size() * 4 / 3);
1853 return;2056 if (Size < 1024)
1854 Finalized = true;2057 Size = 1024;
2058
2059 uint32_t Mask = Size - 1;
2060 std::vector<GdbSymbol *> Ret(Size);
18552061
1856 buildIndex();2062 for (auto &KV : Symbols) {
2063 GdbSymbol *Sym = KV.second;
2064 uint32_t I = Sym->NameHash & Mask;
2065 uint32_t Step = ((Sym->NameHash * 17) & Mask) | 1;
18572066
1858 SymbolTable.finalizeContents();2067 while (Ret[I])
2068 I = (I + Step) & Mask;
2069 Ret[I] = Sym;
2070 }
2071 return Ret;
2072}
18592073
1860 // GdbIndex header consist from version fields2074GdbIndexSection::GdbIndexSection(std::vector<GdbIndexChunk> &&C)
1861 // and 5 more fields with different kinds of offsets.2075 : SyntheticSection(0, SHT_PROGBITS, 1, ".gdb_index"), Chunks(std::move(C)) {
1862 CuTypesOffset = CuListOffset + getCuSize(Chunks) * CompilationUnitSize;2076 fixCuIndex();
1863 SymTabOffset = CuTypesOffset + getAddressAreaSize(Chunks) * AddressEntrySize;2077 CuVectors = createCuVectors();
2078 GdbSymtab = createGdbSymtab();
18642079
1865 ConstantPoolOffset =2080 // Compute offsets early to know the section size.
1866 SymTabOffset + SymbolTable.getCapacity() * SymTabEntrySize;2081 // Each chunk size needs to be in sync with what we write in writeTo.
2082 CuTypesOffset = CuListOffset + getCuSize(Chunks) * 16;
2083 SymtabOffset = CuTypesOffset + getAddressAreaSize(Chunks) * 20;
2084 ConstantPoolOffset = SymtabOffset + GdbSymtab.size() * 8;
18672085
1868 for (std::set<uint32_t> &CuVec : CuVectors) {2086 size_t Off = 0;
1869 CuVectorsOffset.push_back(CuVectorsSize);2087 for (ArrayRef<uint32_t> Vec : CuVectors) {
1870 CuVectorsSize += OffsetTypeSize * (CuVec.size() + 1);2088 CuVectorOffsets.push_back(Off);
2089 Off += (Vec.size() + 1) * 4;
1871 }2090 }
1872 StringPoolOffset = ConstantPoolOffset + CuVectorsSize;2091 StringPoolOffset = ConstantPoolOffset + Off;
1873
1874 StringPool.finalizeInOrder();
1875}2092}
18762093
1877size_t GdbIndexSection::getSize() const {2094size_t GdbIndexSection::getSize() const {
1878 const_cast<GdbIndexSection *>(this)->finalizeContents();2095 return StringPoolOffset + StringPoolSize;
1879 return StringPoolOffset + StringPool.getSize();
1880}2096}
18812097
1882void GdbIndexSection::writeTo(uint8_t *Buf) {2098void GdbIndexSection::writeTo(uint8_t *Buf) {
1883 write32le(Buf, 7); // Write version.2099 // Write the section header.
1884 write32le(Buf + 4, CuListOffset); // CU list offset.2100 write32le(Buf, 7);
1885 write32le(Buf + 8, CuTypesOffset); // Types CU list offset.2101 write32le(Buf + 4, CuListOffset);
1886 write32le(Buf + 12, CuTypesOffset); // Address area offset.2102 write32le(Buf + 8, CuTypesOffset);
1887 write32le(Buf + 16, SymTabOffset); // Symbol table offset.2103 write32le(Buf + 12, CuTypesOffset);
1888 write32le(Buf + 20, ConstantPoolOffset); // Constant pool offset.2104 write32le(Buf + 16, SymtabOffset);
2105 write32le(Buf + 20, ConstantPoolOffset);
1889 Buf += 24;2106 Buf += 24;
18902107
1891 // Write the CU list.2108 // Write the CU list.
1892 for (GdbIndexChunk &D : Chunks) {2109 for (GdbIndexChunk &D : Chunks) {
1893 for (CompilationUnitEntry &Cu : D.CompilationUnits) {2110 for (GdbIndexChunk::CuEntry &Cu : D.CompilationUnits) {
1894 write64le(Buf, D.DebugInfoSec->OutSecOff + Cu.CuOffset);2111 write64le(Buf, D.DebugInfoSec->OutSecOff + Cu.CuOffset);
1895 write64le(Buf + 8, Cu.CuLength);2112 write64le(Buf + 8, Cu.CuLength);
1896 Buf += 16;2113 Buf += 16;
...@@ -1899,7 +2116,7 @@ void GdbIndexSection::writeTo(uint8_t *Buf) {...@@ -1899,7 +2116,7 @@ void GdbIndexSection::writeTo(uint8_t *Buf) {
18992116
1900 // Write the address area.2117 // Write the address area.
1901 for (GdbIndexChunk &D : Chunks) {2118 for (GdbIndexChunk &D : Chunks) {
1902 for (AddressEntry &E : D.AddressArea) {2119 for (GdbIndexChunk::AddressEntry &E : D.AddressAreas) {
1903 uint64_t BaseAddr =2120 uint64_t BaseAddr =
1904 E.Section->getParent()->Addr + E.Section->getOffset(0);2121 E.Section->getParent()->Addr + E.Section->getOffset(0);
1905 write64le(Buf, BaseAddr + E.LowAddress);2122 write64le(Buf, BaseAddr + E.LowAddress);
...@@ -1910,43 +2127,47 @@ void GdbIndexSection::writeTo(uint8_t *Buf) {...@@ -1910,43 +2127,47 @@ void GdbIndexSection::writeTo(uint8_t *Buf) {
1910 }2127 }
19112128
1912 // Write the symbol table.2129 // Write the symbol table.
1913 for (size_t I = 0; I < SymbolTable.getCapacity(); ++I) {2130 for (GdbSymbol *Sym : GdbSymtab) {
1914 GdbSymbol *Sym = SymbolTable.getSymbol(I);
1915 if (Sym) {2131 if (Sym) {
1916 size_t NameOffset =2132 write32le(Buf, Sym->NameOffset + StringPoolOffset - ConstantPoolOffset);
1917 Sym->NameOffset + StringPoolOffset - ConstantPoolOffset;2133 write32le(Buf + 4, CuVectorOffsets[Sym->CuVectorIndex]);
1918 size_t CuVectorOffset = CuVectorsOffset[Sym->CuVectorIndex];
1919 write32le(Buf, NameOffset);
1920 write32le(Buf + 4, CuVectorOffset);
1921 }2134 }
1922 Buf += 8;2135 Buf += 8;
1923 }2136 }
19242137
1925 // Write the CU vectors into the constant pool.2138 // Write the CU vectors.
1926 for (std::set<uint32_t> &CuVec : CuVectors) {2139 for (ArrayRef<uint32_t> Vec : CuVectors) {
1927 write32le(Buf, CuVec.size());2140 write32le(Buf, Vec.size());
1928 Buf += 4;2141 Buf += 4;
1929 for (uint32_t Val : CuVec) {2142 for (uint32_t Val : Vec) {
1930 write32le(Buf, Val);2143 write32le(Buf, Val);
1931 Buf += 4;2144 Buf += 4;
1932 }2145 }
1933 }2146 }
19342147
1935 StringPool.write(Buf);2148 // Write the string pool.
2149 for (auto &KV : Symbols) {
2150 CachedHashStringRef S = KV.first;
2151 GdbSymbol *Sym = KV.second;
2152 size_t Off = Sym->NameOffset;
2153 memcpy(Buf + Off, S.val().data(), S.size());
2154 Buf[Off + S.size()] = '\0';
2155 }
1936}2156}
19372157
1938bool GdbIndexSection::empty() const { return !Out::DebugInfo; }2158bool GdbIndexSection::empty() const { return !Out::DebugInfo; }
19392159
1940template <class ELFT>2160EhFrameHeader::EhFrameHeader()
1941EhFrameHeader<ELFT>::EhFrameHeader()
1942 : SyntheticSection(SHF_ALLOC, SHT_PROGBITS, 1, ".eh_frame_hdr") {}2161 : SyntheticSection(SHF_ALLOC, SHT_PROGBITS, 1, ".eh_frame_hdr") {}
19432162
1944// .eh_frame_hdr contains a binary search table of pointers to FDEs.2163// .eh_frame_hdr contains a binary search table of pointers to FDEs.
1945// Each entry of the search table consists of two values,2164// Each entry of the search table consists of two values,
1946// the starting PC from where FDEs covers, and the FDE's address.2165// the starting PC from where FDEs covers, and the FDE's address.
1947// It is sorted by PC.2166// It is sorted by PC.
1948template <class ELFT> void EhFrameHeader<ELFT>::writeTo(uint8_t *Buf) {2167void EhFrameHeader::writeTo(uint8_t *Buf) {
1949 const endianness E = ELFT::TargetEndianness;2168 typedef EhFrameSection::FdeData FdeData;
2169
2170 std::vector<FdeData> Fdes = InX::EhFrame->getFdeData();
19502171
1951 // Sort the FDE list by their PC and uniqueify. Usually there is only2172 // Sort the FDE list by their PC and uniqueify. Usually there is only
1952 // one FDE for a PC (i.e. function), but if ICF merges two functions2173 // one FDE for a PC (i.e. function), but if ICF merges two functions
...@@ -1960,31 +2181,24 @@ template <class ELFT> void EhFrameHeader<ELFT>::writeTo(uint8_t *Buf) {...@@ -1960,31 +2181,24 @@ template <class ELFT> void EhFrameHeader<ELFT>::writeTo(uint8_t *Buf) {
1960 Buf[1] = DW_EH_PE_pcrel | DW_EH_PE_sdata4;2181 Buf[1] = DW_EH_PE_pcrel | DW_EH_PE_sdata4;
1961 Buf[2] = DW_EH_PE_udata4;2182 Buf[2] = DW_EH_PE_udata4;
1962 Buf[3] = DW_EH_PE_datarel | DW_EH_PE_sdata4;2183 Buf[3] = DW_EH_PE_datarel | DW_EH_PE_sdata4;
1963 write32<E>(Buf + 4, In<ELFT>::EhFrame->getParent()->Addr - this->getVA() - 4);2184 write32(Buf + 4, InX::EhFrame->getParent()->Addr - this->getVA() - 4);
1964 write32<E>(Buf + 8, Fdes.size());2185 write32(Buf + 8, Fdes.size());
1965 Buf += 12;2186 Buf += 12;
19662187
1967 uint64_t VA = this->getVA();2188 uint64_t VA = this->getVA();
1968 for (FdeData &Fde : Fdes) {2189 for (FdeData &Fde : Fdes) {
1969 write32<E>(Buf, Fde.Pc - VA);2190 write32(Buf, Fde.Pc - VA);
1970 write32<E>(Buf + 4, Fde.FdeVA - VA);2191 write32(Buf + 4, Fde.FdeVA - VA);
1971 Buf += 8;2192 Buf += 8;
1972 }2193 }
1973}2194}
19742195
1975template <class ELFT> size_t EhFrameHeader<ELFT>::getSize() const {2196size_t EhFrameHeader::getSize() const {
1976 // .eh_frame_hdr has a 12 bytes header followed by an array of FDEs.2197 // .eh_frame_hdr has a 12 bytes header followed by an array of FDEs.
1977 return 12 + In<ELFT>::EhFrame->NumFdes * 8;2198 return 12 + InX::EhFrame->NumFdes * 8;
1978}
1979
1980template <class ELFT>
1981void EhFrameHeader<ELFT>::addFde(uint32_t Pc, uint32_t FdeVA) {
1982 Fdes.push_back({Pc, FdeVA});
1983}2199}
19842200
1985template <class ELFT> bool EhFrameHeader<ELFT>::empty() const {2201bool EhFrameHeader::empty() const { return InX::EhFrame->empty(); }
1986 return In<ELFT>::EhFrame->empty();
1987}
19882202
1989template <class ELFT>2203template <class ELFT>
1990VersionDefinitionSection<ELFT>::VersionDefinitionSection()2204VersionDefinitionSection<ELFT>::VersionDefinitionSection()
...@@ -2065,7 +2279,7 @@ template <class ELFT> size_t VersionTableSection<ELFT>::getSize() const {...@@ -2065,7 +2279,7 @@ template <class ELFT> size_t VersionTableSection<ELFT>::getSize() const {
2065template <class ELFT> void VersionTableSection<ELFT>::writeTo(uint8_t *Buf) {2279template <class ELFT> void VersionTableSection<ELFT>::writeTo(uint8_t *Buf) {
2066 auto *OutVersym = reinterpret_cast<Elf_Versym *>(Buf) + 1;2280 auto *OutVersym = reinterpret_cast<Elf_Versym *>(Buf) + 1;
2067 for (const SymbolTableEntry &S : InX::DynSymTab->getSymbols()) {2281 for (const SymbolTableEntry &S : InX::DynSymTab->getSymbols()) {
2068 OutVersym->vs_index = S.Symbol->symbol()->VersionId;2282 OutVersym->vs_index = S.Sym->VersionId;
2069 ++OutVersym;2283 ++OutVersym;
2070 }2284 }
2071}2285}
...@@ -2086,29 +2300,28 @@ VersionNeedSection<ELFT>::VersionNeedSection()...@@ -2086,29 +2300,28 @@ VersionNeedSection<ELFT>::VersionNeedSection()
20862300
2087template <class ELFT>2301template <class ELFT>
2088void VersionNeedSection<ELFT>::addSymbol(SharedSymbol *SS) {2302void VersionNeedSection<ELFT>::addSymbol(SharedSymbol *SS) {
2089 auto *Ver = reinterpret_cast<const typename ELFT::Verdef *>(SS->Verdef);2303 SharedFile<ELFT> &File = SS->getFile<ELFT>();
2304 const typename ELFT::Verdef *Ver = File.Verdefs[SS->VerdefIndex];
2090 if (!Ver) {2305 if (!Ver) {
2091 SS->symbol()->VersionId = VER_NDX_GLOBAL;2306 SS->VersionId = VER_NDX_GLOBAL;
2092 return;2307 return;
2093 }2308 }
20942309
2095 auto *File = cast<SharedFile<ELFT>>(SS->File);
2096
2097 // If we don't already know that we need an Elf_Verneed for this DSO, prepare2310 // If we don't already know that we need an Elf_Verneed for this DSO, prepare
2098 // to create one by adding it to our needed list and creating a dynstr entry2311 // to create one by adding it to our needed list and creating a dynstr entry
2099 // for the soname.2312 // for the soname.
2100 if (File->VerdefMap.empty())2313 if (File.VerdefMap.empty())
2101 Needed.push_back({File, InX::DynStrTab->addString(File->SoName)});2314 Needed.push_back({&File, InX::DynStrTab->addString(File.SoName)});
2102 typename SharedFile<ELFT>::NeededVer &NV = File->VerdefMap[Ver];2315 typename SharedFile<ELFT>::NeededVer &NV = File.VerdefMap[Ver];
2103 // If we don't already know that we need an Elf_Vernaux for this Elf_Verdef,2316 // If we don't already know that we need an Elf_Vernaux for this Elf_Verdef,
2104 // prepare to create one by allocating a version identifier and creating a2317 // prepare to create one by allocating a version identifier and creating a
2105 // dynstr entry for the version name.2318 // dynstr entry for the version name.
2106 if (NV.Index == 0) {2319 if (NV.Index == 0) {
2107 NV.StrTab = InX::DynStrTab->addString(File->getStringTable().data() +2320 NV.StrTab = InX::DynStrTab->addString(File.getStringTable().data() +
2108 Ver->getAux()->vda_name);2321 Ver->getAux()->vda_name);
2109 NV.Index = NextIndex++;2322 NV.Index = NextIndex++;
2110 }2323 }
2111 SS->symbol()->VersionId = NV.Index;2324 SS->VersionId = NV.Index;
2112}2325}
21132326
2114template <class ELFT> void VersionNeedSection<ELFT>::writeTo(uint8_t *Buf) {2327template <class ELFT> void VersionNeedSection<ELFT>::writeTo(uint8_t *Buf) {
...@@ -2162,23 +2375,21 @@ template <class ELFT> bool VersionNeedSection<ELFT>::empty() const {...@@ -2162,23 +2375,21 @@ template <class ELFT> bool VersionNeedSection<ELFT>::empty() const {
2162 return getNeedNum() == 0;2375 return getNeedNum() == 0;
2163}2376}
21642377
2165MergeSyntheticSection::MergeSyntheticSection(StringRef Name, uint32_t Type,
2166 uint64_t Flags, uint32_t Alignment)
2167 : SyntheticSection(Flags, Type, Alignment, Name),
2168 Builder(StringTableBuilder::RAW, Alignment) {}
2169
2170void MergeSyntheticSection::addSection(MergeInputSection *MS) {2378void MergeSyntheticSection::addSection(MergeInputSection *MS) {
2171 MS->Parent = this;2379 MS->Parent = this;
2172 Sections.push_back(MS);2380 Sections.push_back(MS);
2173}2381}
21742382
2175void MergeSyntheticSection::writeTo(uint8_t *Buf) { Builder.write(Buf); }2383MergeTailSection::MergeTailSection(StringRef Name, uint32_t Type,
2384 uint64_t Flags, uint32_t Alignment)
2385 : MergeSyntheticSection(Name, Type, Flags, Alignment),
2386 Builder(StringTableBuilder::RAW, Alignment) {}
21762387
2177bool MergeSyntheticSection::shouldTailMerge() const {2388size_t MergeTailSection::getSize() const { return Builder.getSize(); }
2178 return (this->Flags & SHF_STRINGS) && Config->Optimize >= 2;
2179}
21802389
2181void MergeSyntheticSection::finalizeTailMerge() {2390void MergeTailSection::writeTo(uint8_t *Buf) { Builder.write(Buf); }
2391
2392void MergeTailSection::finalizeContents() {
2182 // Add all string pieces to the string table builder to create section2393 // Add all string pieces to the string table builder to create section
2183 // contents.2394 // contents.
2184 for (MergeInputSection *Sec : Sections)2395 for (MergeInputSection *Sec : Sections)
...@@ -2198,46 +2409,96 @@ void MergeSyntheticSection::finalizeTailMerge() {...@@ -2198,46 +2409,96 @@ void MergeSyntheticSection::finalizeTailMerge() {
2198 Sec->Pieces[I].OutputOff = Builder.getOffset(Sec->getData(I));2409 Sec->Pieces[I].OutputOff = Builder.getOffset(Sec->getData(I));
2199}2410}
22002411
2201void MergeSyntheticSection::finalizeNoTailMerge() {2412void MergeNoTailSection::writeTo(uint8_t *Buf) {
2202 // Add all string pieces to the string table builder to create section2413 for (size_t I = 0; I < NumShards; ++I)
2203 // contents. Because we are not tail-optimizing, offsets of strings are2414 Shards[I].write(Buf + ShardOffsets[I]);
2204 // fixed when they are added to the builder (string table builder contains2415}
2205 // a hash table from strings to offsets).2416
2206 for (MergeInputSection *Sec : Sections)2417// This function is very hot (i.e. it can take several seconds to finish)
2418// because sometimes the number of inputs is in an order of magnitude of
2419// millions. So, we use multi-threading.
2420//
2421// For any strings S and T, we know S is not mergeable with T if S's hash
2422// value is different from T's. If that's the case, we can safely put S and
2423// T into different string builders without worrying about merge misses.
2424// We do it in parallel.
2425void MergeNoTailSection::finalizeContents() {
2426 // Initializes string table builders.
2427 for (size_t I = 0; I < NumShards; ++I)
2428 Shards.emplace_back(StringTableBuilder::RAW, Alignment);
2429
2430 // Concurrency level. Must be a power of 2 to avoid expensive modulo
2431 // operations in the following tight loop.
2432 size_t Concurrency = 1;
2433 if (ThreadsEnabled)
2434 Concurrency =
2435 std::min<size_t>(PowerOf2Floor(hardware_concurrency()), NumShards);
2436
2437 // Add section pieces to the builders.
2438 parallelForEachN(0, Concurrency, [&](size_t ThreadId) {
2439 for (MergeInputSection *Sec : Sections) {
2440 for (size_t I = 0, E = Sec->Pieces.size(); I != E; ++I) {
2441 size_t ShardId = getShardId(Sec->Pieces[I].Hash);
2442 if ((ShardId & (Concurrency - 1)) == ThreadId && Sec->Pieces[I].Live)
2443 Sec->Pieces[I].OutputOff = Shards[ShardId].add(Sec->getData(I));
2444 }
2445 }
2446 });
2447
2448 // Compute an in-section offset for each shard.
2449 size_t Off = 0;
2450 for (size_t I = 0; I < NumShards; ++I) {
2451 Shards[I].finalizeInOrder();
2452 if (Shards[I].getSize() > 0)
2453 Off = alignTo(Off, Alignment);
2454 ShardOffsets[I] = Off;
2455 Off += Shards[I].getSize();
2456 }
2457 Size = Off;
2458
2459 // So far, section pieces have offsets from beginning of shards, but
2460 // we want offsets from beginning of the whole section. Fix them.
2461 parallelForEach(Sections, [&](MergeInputSection *Sec) {
2207 for (size_t I = 0, E = Sec->Pieces.size(); I != E; ++I)2462 for (size_t I = 0, E = Sec->Pieces.size(); I != E; ++I)
2208 if (Sec->Pieces[I].Live)2463 if (Sec->Pieces[I].Live)
2209 Sec->Pieces[I].OutputOff = Builder.add(Sec->getData(I));2464 Sec->Pieces[I].OutputOff +=
2465 ShardOffsets[getShardId(Sec->Pieces[I].Hash)];
2466 });
2467}
22102468
2211 Builder.finalizeInOrder();2469static MergeSyntheticSection *createMergeSynthetic(StringRef Name,
2470 uint32_t Type,
2471 uint64_t Flags,
2472 uint32_t Alignment) {
2473 bool ShouldTailMerge = (Flags & SHF_STRINGS) && Config->Optimize >= 2;
2474 if (ShouldTailMerge)
2475 return make<MergeTailSection>(Name, Type, Flags, Alignment);
2476 return make<MergeNoTailSection>(Name, Type, Flags, Alignment);
2212}2477}
22132478
2214void MergeSyntheticSection::finalizeContents() {2479// Debug sections may be compressed by zlib. Uncompress if exists.
2215 if (shouldTailMerge())2480void elf::decompressSections() {
2216 finalizeTailMerge();2481 parallelForEach(InputSections, [](InputSectionBase *Sec) {
2217 else2482 if (Sec->Live)
2218 finalizeNoTailMerge();2483 Sec->maybeUncompress();
2219}2484 });
22202485}
2221size_t MergeSyntheticSection::getSize() const { return Builder.getSize(); }2486
22222487// This function scans over the inputsections to create mergeable
2223// This function decompresses compressed sections and scans over the input2488// synthetic sections.
2224// sections to create mergeable synthetic sections. It removes2489//
2225// MergeInputSections from the input section array and adds new synthetic2490// It removes MergeInputSections from the input section array and adds
2226// sections at the location of the first input section that it replaces. It then2491// new synthetic sections at the location of the first input section
2227// finalizes each synthetic section in order to compute an output offset for2492// that it replaces. It then finalizes each synthetic section in order
2228// each piece of each input section.2493// to compute an output offset for each piece of each input section.
2229void elf::decompressAndMergeSections() {2494void elf::mergeSections() {
2230 // splitIntoPieces needs to be called on each MergeInputSection before calling2495 // splitIntoPieces needs to be called on each MergeInputSection
2231 // finalizeContents(). Do that first.2496 // before calling finalizeContents(). Do that first.
2232 parallelForEach(InputSections.begin(), InputSections.end(),2497 parallelForEach(InputSections, [](InputSectionBase *Sec) {
2233 [](InputSectionBase *S) {2498 if (Sec->Live)
2234 if (!S->Live)2499 if (auto *S = dyn_cast<MergeInputSection>(Sec))
2235 return;2500 S->splitIntoPieces();
2236 if (Decompressor::isCompressedELFSection(S->Flags, S->Name))2501 });
2237 S->uncompress();
2238 if (auto *MS = dyn_cast<MergeInputSection>(S))
2239 MS->splitIntoPieces();
2240 });
22412502
2242 std::vector<MergeSyntheticSection *> MergeSections;2503 std::vector<MergeSyntheticSection *> MergeSections;
2243 for (InputSectionBase *&S : InputSections) {2504 for (InputSectionBase *&S : InputSections) {
...@@ -2250,20 +2511,28 @@ void elf::decompressAndMergeSections() {...@@ -2250,20 +2511,28 @@ void elf::decompressAndMergeSections() {
2250 if (!MS->Live)2511 if (!MS->Live)
2251 continue;2512 continue;
22522513
2253 StringRef OutsecName = getOutputSectionName(MS->Name);2514 StringRef OutsecName = getOutputSectionName(MS);
2254 uint64_t Flags = MS->Flags & ~(uint64_t)SHF_GROUP;
2255 uint32_t Alignment = std::max<uint32_t>(MS->Alignment, MS->Entsize);2515 uint32_t Alignment = std::max<uint32_t>(MS->Alignment, MS->Entsize);
22562516
2257 auto I = llvm::find_if(MergeSections, [=](MergeSyntheticSection *Sec) {2517 auto I = llvm::find_if(MergeSections, [=](MergeSyntheticSection *Sec) {
2258 return Sec->Name == OutsecName && Sec->Flags == Flags &&2518 // While we could create a single synthetic section for two different
2259 Sec->Alignment == Alignment;2519 // values of Entsize, it is better to take Entsize into consideration.
2520 //
2521 // With a single synthetic section no two pieces with different Entsize
2522 // could be equal, so we may as well have two sections.
2523 //
2524 // Using Entsize in here also allows us to propagate it to the synthetic
2525 // section.
2526 return Sec->Name == OutsecName && Sec->Flags == MS->Flags &&
2527 Sec->Entsize == MS->Entsize && Sec->Alignment == Alignment;
2260 });2528 });
2261 if (I == MergeSections.end()) {2529 if (I == MergeSections.end()) {
2262 MergeSyntheticSection *Syn =2530 MergeSyntheticSection *Syn =
2263 make<MergeSyntheticSection>(OutsecName, MS->Type, Flags, Alignment);2531 createMergeSynthetic(OutsecName, MS->Type, MS->Flags, Alignment);
2264 MergeSections.push_back(Syn);2532 MergeSections.push_back(Syn);
2265 I = std::prev(MergeSections.end());2533 I = std::prev(MergeSections.end());
2266 S = Syn;2534 S = Syn;
2535 Syn->Entsize = MS->Entsize;
2267 } else {2536 } else {
2268 S = nullptr;2537 S = nullptr;
2269 }2538 }
...@@ -2291,22 +2560,23 @@ ARMExidxSentinelSection::ARMExidxSentinelSection()...@@ -2291,22 +2560,23 @@ ARMExidxSentinelSection::ARMExidxSentinelSection()
2291// The sentinel must have the PREL31 value of an address higher than any2560// The sentinel must have the PREL31 value of an address higher than any
2292// address described by any other table entry.2561// address described by any other table entry.
2293void ARMExidxSentinelSection::writeTo(uint8_t *Buf) {2562void ARMExidxSentinelSection::writeTo(uint8_t *Buf) {
2294 // The Sections are sorted in order of ascending PREL31 address with the2563 assert(Highest);
2295 // sentinel last. We need to find the InputSection that precedes the2564 uint64_t S =
2296 // sentinel. By construction the Sentinel is in the last2565 Highest->getParent()->Addr + Highest->getOffset(Highest->getSize());
2297 // InputSectionDescription as the InputSection that precedes it.
2298 OutputSectionCommand *C = Script->getCmd(getParent());
2299 auto ISD = std::find_if(C->Commands.rbegin(), C->Commands.rend(),
2300 [](const BaseCommand *Base) {
2301 return isa<InputSectionDescription>(Base);
2302 });
2303 auto L = cast<InputSectionDescription>(*ISD);
2304 InputSection *Highest = L->Sections[L->Sections.size() - 2];
2305 InputSection *LS = Highest->getLinkOrderDep();
2306 uint64_t S = LS->getParent()->Addr + LS->getOffset(LS->getSize());
2307 uint64_t P = getVA();2566 uint64_t P = getVA();
2308 Target->relocateOne(Buf, R_ARM_PREL31, S - P);2567 Target->relocateOne(Buf, R_ARM_PREL31, S - P);
2309 write32le(Buf + 4, 0x1);2568 write32le(Buf + 4, 1);
2569}
2570
2571// The sentinel has to be removed if there are no other .ARM.exidx entries.
2572bool ARMExidxSentinelSection::empty() const {
2573 OutputSection *OS = getParent();
2574 for (auto *B : OS->SectionCommands)
2575 if (auto *ISD = dyn_cast<InputSectionDescription>(B))
2576 for (auto *S : ISD->Sections)
2577 if (!isa<ARMExidxSentinelSection>(S))
2578 return false;
2579 return true;
2310}2580}
23112581
2312ThunkSection::ThunkSection(OutputSection *OS, uint64_t Off)2582ThunkSection::ThunkSection(OutputSection *OS, uint64_t Off)
...@@ -2330,6 +2600,8 @@ void ThunkSection::writeTo(uint8_t *Buf) {...@@ -2330,6 +2600,8 @@ void ThunkSection::writeTo(uint8_t *Buf) {
2330}2600}
23312601
2332InputSection *ThunkSection::getTargetInputSection() const {2602InputSection *ThunkSection::getTargetInputSection() const {
2603 if (Thunks.empty())
2604 return nullptr;
2333 const Thunk *T = Thunks.front();2605 const Thunk *T = Thunks.front();
2334 return T->getTargetInputSection();2606 return T->getTargetInputSection();
2335}2607}
...@@ -2338,7 +2610,8 @@ InputSection *InX::ARMAttributes;...@@ -2338,7 +2610,8 @@ InputSection *InX::ARMAttributes;
2338BssSection *InX::Bss;2610BssSection *InX::Bss;
2339BssSection *InX::BssRelRo;2611BssSection *InX::BssRelRo;
2340BuildIdSection *InX::BuildId;2612BuildIdSection *InX::BuildId;
2341InputSection *InX::Common;2613EhFrameHeader *InX::EhFrameHdr;
2614EhFrameSection *InX::EhFrame;
2342SyntheticSection *InX::Dynamic;2615SyntheticSection *InX::Dynamic;
2343StringTableSection *InX::DynStrTab;2616StringTableSection *InX::DynStrTab;
2344SymbolTableBaseSection *InX::DynSymTab;2617SymbolTableBaseSection *InX::DynSymTab;
...@@ -2347,11 +2620,15 @@ GdbIndexSection *InX::GdbIndex;...@@ -2347,11 +2620,15 @@ GdbIndexSection *InX::GdbIndex;
2347GotSection *InX::Got;2620GotSection *InX::Got;
2348GotPltSection *InX::GotPlt;2621GotPltSection *InX::GotPlt;
2349GnuHashTableSection *InX::GnuHashTab;2622GnuHashTableSection *InX::GnuHashTab;
2623HashTableSection *InX::HashTab;
2350IgotPltSection *InX::IgotPlt;2624IgotPltSection *InX::IgotPlt;
2351MipsGotSection *InX::MipsGot;2625MipsGotSection *InX::MipsGot;
2352MipsRldMapSection *InX::MipsRldMap;2626MipsRldMapSection *InX::MipsRldMap;
2353PltSection *InX::Plt;2627PltSection *InX::Plt;
2354PltSection *InX::Iplt;2628PltSection *InX::Iplt;
2629RelocationBaseSection *InX::RelaDyn;
2630RelocationBaseSection *InX::RelaPlt;
2631RelocationBaseSection *InX::RelaIplt;
2355StringTableSection *InX::ShStrTab;2632StringTableSection *InX::ShStrTab;
2356StringTableSection *InX::StrTab;2633StringTableSection *InX::StrTab;
2357SymbolTableBaseSection *InX::SymTab;2634SymbolTableBaseSection *InX::SymTab;
...@@ -2361,20 +2638,15 @@ template GdbIndexSection *elf::createGdbIndex<ELF32BE>();...@@ -2361,20 +2638,15 @@ template GdbIndexSection *elf::createGdbIndex<ELF32BE>();
2361template GdbIndexSection *elf::createGdbIndex<ELF64LE>();2638template GdbIndexSection *elf::createGdbIndex<ELF64LE>();
2362template GdbIndexSection *elf::createGdbIndex<ELF64BE>();2639template GdbIndexSection *elf::createGdbIndex<ELF64BE>();
23632640
2364template void PltSection::addEntry<ELF32LE>(SymbolBody &Sym);2641template void EhFrameSection::addSection<ELF32LE>(InputSectionBase *);
2365template void PltSection::addEntry<ELF32BE>(SymbolBody &Sym);2642template void EhFrameSection::addSection<ELF32BE>(InputSectionBase *);
2366template void PltSection::addEntry<ELF64LE>(SymbolBody &Sym);2643template void EhFrameSection::addSection<ELF64LE>(InputSectionBase *);
2367template void PltSection::addEntry<ELF64BE>(SymbolBody &Sym);2644template void EhFrameSection::addSection<ELF64BE>(InputSectionBase *);
2368
2369template InputSection *elf::createCommonSection<ELF32LE>();
2370template InputSection *elf::createCommonSection<ELF32BE>();
2371template InputSection *elf::createCommonSection<ELF64LE>();
2372template InputSection *elf::createCommonSection<ELF64BE>();
23732645
2374template MergeInputSection *elf::createCommentSection<ELF32LE>();2646template void PltSection::addEntry<ELF32LE>(Symbol &Sym);
2375template MergeInputSection *elf::createCommentSection<ELF32BE>();2647template void PltSection::addEntry<ELF32BE>(Symbol &Sym);
2376template MergeInputSection *elf::createCommentSection<ELF64LE>();2648template void PltSection::addEntry<ELF64LE>(Symbol &Sym);
2377template MergeInputSection *elf::createCommentSection<ELF64BE>();2649template void PltSection::addEntry<ELF64BE>(Symbol &Sym);
23782650
2379template class elf::MipsAbiFlagsSection<ELF32LE>;2651template class elf::MipsAbiFlagsSection<ELF32LE>;
2380template class elf::MipsAbiFlagsSection<ELF32BE>;2652template class elf::MipsAbiFlagsSection<ELF32BE>;
...@@ -2401,21 +2673,16 @@ template class elf::RelocationSection<ELF32BE>;...@@ -2401,21 +2673,16 @@ template class elf::RelocationSection<ELF32BE>;
2401template class elf::RelocationSection<ELF64LE>;2673template class elf::RelocationSection<ELF64LE>;
2402template class elf::RelocationSection<ELF64BE>;2674template class elf::RelocationSection<ELF64BE>;
24032675
2676template class elf::AndroidPackedRelocationSection<ELF32LE>;
2677template class elf::AndroidPackedRelocationSection<ELF32BE>;
2678template class elf::AndroidPackedRelocationSection<ELF64LE>;
2679template class elf::AndroidPackedRelocationSection<ELF64BE>;
2680
2404template class elf::SymbolTableSection<ELF32LE>;2681template class elf::SymbolTableSection<ELF32LE>;
2405template class elf::SymbolTableSection<ELF32BE>;2682template class elf::SymbolTableSection<ELF32BE>;
2406template class elf::SymbolTableSection<ELF64LE>;2683template class elf::SymbolTableSection<ELF64LE>;
2407template class elf::SymbolTableSection<ELF64BE>;2684template class elf::SymbolTableSection<ELF64BE>;
24082685
2409template class elf::HashTableSection<ELF32LE>;
2410template class elf::HashTableSection<ELF32BE>;
2411template class elf::HashTableSection<ELF64LE>;
2412template class elf::HashTableSection<ELF64BE>;
2413
2414template class elf::EhFrameHeader<ELF32LE>;
2415template class elf::EhFrameHeader<ELF32BE>;
2416template class elf::EhFrameHeader<ELF64LE>;
2417template class elf::EhFrameHeader<ELF64BE>;
2418
2419template class elf::VersionTableSection<ELF32LE>;2686template class elf::VersionTableSection<ELF32LE>;
2420template class elf::VersionTableSection<ELF32BE>;2687template class elf::VersionTableSection<ELF32BE>;
2421template class elf::VersionTableSection<ELF64LE>;2688template class elf::VersionTableSection<ELF64LE>;
...@@ -2430,8 +2697,3 @@ template class elf::VersionDefinitionSection<ELF32LE>;...@@ -2430,8 +2697,3 @@ template class elf::VersionDefinitionSection<ELF32LE>;
2430template class elf::VersionDefinitionSection<ELF32BE>;2697template class elf::VersionDefinitionSection<ELF32BE>;
2431template class elf::VersionDefinitionSection<ELF64LE>;2698template class elf::VersionDefinitionSection<ELF64LE>;
2432template class elf::VersionDefinitionSection<ELF64BE>;2699template class elf::VersionDefinitionSection<ELF64BE>;
2433
2434template class elf::EhFrameSection<ELF32LE>;
2435template class elf::EhFrameSection<ELF32BE>;
2436template class elf::EhFrameSection<ELF64LE>;
2437template class elf::EhFrameSection<ELF64BE>;
deps/lld/ELF/SyntheticSections.h+208-150
...@@ -26,17 +26,17 @@...@@ -26,17 +26,17 @@
26#include "InputSection.h"26#include "InputSection.h"
27#include "llvm/ADT/MapVector.h"27#include "llvm/ADT/MapVector.h"
28#include "llvm/MC/StringTableBuilder.h"28#include "llvm/MC/StringTableBuilder.h"
2929#include <functional>
30#include <set>
3130
32namespace lld {31namespace lld {
33namespace elf {32namespace elf {
33class SharedSymbol;
3434
35class SyntheticSection : public InputSection {35class SyntheticSection : public InputSection {
36public:36public:
37 SyntheticSection(uint64_t Flags, uint32_t Type, uint32_t Alignment,37 SyntheticSection(uint64_t Flags, uint32_t Type, uint32_t Alignment,
38 StringRef Name)38 StringRef Name)
39 : InputSection(Flags, Type, Alignment, {}, Name,39 : InputSection(nullptr, Flags, Type, Alignment, {}, Name,
40 InputSectionBase::Synthetic) {40 InputSectionBase::Synthetic) {
41 this->Live = true;41 this->Live = true;
42 }42 }
...@@ -47,7 +47,7 @@ public:...@@ -47,7 +47,7 @@ public:
47 virtual void finalizeContents() {}47 virtual void finalizeContents() {}
48 // If the section has the SHF_ALLOC flag and the size may be changed if48 // If the section has the SHF_ALLOC flag and the size may be changed if
49 // thunks are added, update the section size.49 // thunks are added, update the section size.
50 virtual void updateAllocSize() {}50 virtual bool updateAllocSize() { return false; }
51 // If any additional finalization of contents are needed post thunk creation.51 // If any additional finalization of contents are needed post thunk creation.
52 virtual void postThunkContents() {}52 virtual void postThunkContents() {}
53 virtual bool empty() const { return false; }53 virtual bool empty() const { return false; }
...@@ -59,21 +59,12 @@ public:...@@ -59,21 +59,12 @@ public:
59};59};
6060
61struct CieRecord {61struct CieRecord {
62 EhSectionPiece *Piece = nullptr;62 EhSectionPiece *Cie = nullptr;
63 std::vector<EhSectionPiece *> FdePieces;63 std::vector<EhSectionPiece *> Fdes;
64};64};
6565
66// Section for .eh_frame.66// Section for .eh_frame.
67template <class ELFT> class EhFrameSection final : public SyntheticSection {67class EhFrameSection final : public SyntheticSection {
68 typedef typename ELFT::Shdr Elf_Shdr;
69 typedef typename ELFT::Rel Elf_Rel;
70 typedef typename ELFT::Rela Elf_Rela;
71
72 void updateAlignment(uint64_t Val) {
73 if (Val > this->Alignment)
74 this->Alignment = Val;
75 }
76
77public:68public:
78 EhFrameSection();69 EhFrameSection();
79 void writeTo(uint8_t *Buf) override;70 void writeTo(uint8_t *Buf) override;
...@@ -81,30 +72,36 @@ public:...@@ -81,30 +72,36 @@ public:
81 bool empty() const override { return Sections.empty(); }72 bool empty() const override { return Sections.empty(); }
82 size_t getSize() const override { return Size; }73 size_t getSize() const override { return Size; }
8374
84 void addSection(InputSectionBase *S);75 template <class ELFT> void addSection(InputSectionBase *S);
8576
77 std::vector<EhInputSection *> Sections;
86 size_t NumFdes = 0;78 size_t NumFdes = 0;
8779
88 std::vector<EhInputSection *> Sections;80 struct FdeData {
81 uint32_t Pc;
82 uint32_t FdeVA;
83 };
84
85 std::vector<FdeData> getFdeData() const;
8986
90private:87private:
91 uint64_t Size = 0;88 uint64_t Size = 0;
92 template <class RelTy>89
90 template <class ELFT, class RelTy>
93 void addSectionAux(EhInputSection *S, llvm::ArrayRef<RelTy> Rels);91 void addSectionAux(EhInputSection *S, llvm::ArrayRef<RelTy> Rels);
9492
95 template <class RelTy>93 template <class ELFT, class RelTy>
96 CieRecord *addCie(EhSectionPiece &Piece, ArrayRef<RelTy> Rels);94 CieRecord *addCie(EhSectionPiece &Piece, ArrayRef<RelTy> Rels);
9795
98 template <class RelTy>96 template <class ELFT, class RelTy>
99 bool isFdeLive(EhSectionPiece &Piece, ArrayRef<RelTy> Rels);97 bool isFdeLive(EhSectionPiece &Piece, ArrayRef<RelTy> Rels);
10098
101 uint64_t getFdePc(uint8_t *Buf, size_t Off, uint8_t Enc);99 uint64_t getFdePc(uint8_t *Buf, size_t Off, uint8_t Enc) const;
102100
103 std::vector<CieRecord *> Cies;101 std::vector<CieRecord *> CieRecords;
104102
105 // CIE records are uniquified by their contents and personality functions.103 // CIE records are uniquified by their contents and personality functions.
106 llvm::DenseMap<std::pair<ArrayRef<uint8_t>, SymbolBody *>, CieRecord *>104 llvm::DenseMap<std::pair<ArrayRef<uint8_t>, Symbol *>, CieRecord *> CieMap;
107 CieMap;
108};105};
109106
110class GotSection : public SyntheticSection {107class GotSection : public SyntheticSection {
...@@ -115,11 +112,11 @@ public:...@@ -115,11 +112,11 @@ public:
115 bool empty() const override;112 bool empty() const override;
116 void writeTo(uint8_t *Buf) override;113 void writeTo(uint8_t *Buf) override;
117114
118 void addEntry(SymbolBody &Sym);115 void addEntry(Symbol &Sym);
119 bool addDynTlsEntry(SymbolBody &Sym);116 bool addDynTlsEntry(Symbol &Sym);
120 bool addTlsIndex();117 bool addTlsIndex();
121 uint64_t getGlobalDynAddr(const SymbolBody &B) const;118 uint64_t getGlobalDynAddr(const Symbol &B) const;
122 uint64_t getGlobalDynOffset(const SymbolBody &B) const;119 uint64_t getGlobalDynOffset(const Symbol &B) const;
123120
124 uint64_t getTlsIndexVA() { return this->getVA() + TlsIndexOff; }121 uint64_t getTlsIndexVA() { return this->getVA() + TlsIndexOff; }
125 uint32_t getTlsIndexOff() const { return TlsIndexOff; }122 uint32_t getTlsIndexOff() const { return TlsIndexOff; }
...@@ -159,14 +156,13 @@ private:...@@ -159,14 +156,13 @@ private:
159// respectively.156// respectively.
160class BssSection final : public SyntheticSection {157class BssSection final : public SyntheticSection {
161public:158public:
162 BssSection(StringRef Name);159 BssSection(StringRef Name, uint64_t Size, uint32_t Alignment);
163 void writeTo(uint8_t *) override {}160 void writeTo(uint8_t *) override {}
164 bool empty() const override { return getSize() == 0; }161 bool empty() const override { return getSize() == 0; }
165 size_t reserveSpace(uint64_t Size, uint32_t Alignment);
166 size_t getSize() const override { return Size; }162 size_t getSize() const override { return Size; }
167163
168private:164 static bool classof(const SectionBase *S) { return S->Bss; }
169 uint64_t Size = 0;165 uint64_t Size;
170};166};
171167
172class MipsGotSection final : public SyntheticSection {168class MipsGotSection final : public SyntheticSection {
...@@ -174,21 +170,21 @@ public:...@@ -174,21 +170,21 @@ public:
174 MipsGotSection();170 MipsGotSection();
175 void writeTo(uint8_t *Buf) override;171 void writeTo(uint8_t *Buf) override;
176 size_t getSize() const override { return Size; }172 size_t getSize() const override { return Size; }
177 void updateAllocSize() override;173 bool updateAllocSize() override;
178 void finalizeContents() override;174 void finalizeContents() override;
179 bool empty() const override;175 bool empty() const override;
180 void addEntry(SymbolBody &Sym, int64_t Addend, RelExpr Expr);176 void addEntry(Symbol &Sym, int64_t Addend, RelExpr Expr);
181 bool addDynTlsEntry(SymbolBody &Sym);177 bool addDynTlsEntry(Symbol &Sym);
182 bool addTlsIndex();178 bool addTlsIndex();
183 uint64_t getPageEntryOffset(const SymbolBody &B, int64_t Addend) const;179 uint64_t getPageEntryOffset(const Symbol &B, int64_t Addend) const;
184 uint64_t getBodyEntryOffset(const SymbolBody &B, int64_t Addend) const;180 uint64_t getSymEntryOffset(const Symbol &B, int64_t Addend) const;
185 uint64_t getGlobalDynOffset(const SymbolBody &B) const;181 uint64_t getGlobalDynOffset(const Symbol &B) const;
186182
187 // Returns the symbol which corresponds to the first entry of the global part183 // Returns the symbol which corresponds to the first entry of the global part
188 // of GOT on MIPS platform. It is required to fill up MIPS-specific dynamic184 // of GOT on MIPS platform. It is required to fill up MIPS-specific dynamic
189 // table properties.185 // table properties.
190 // Returns nullptr if the global part is empty.186 // Returns nullptr if the global part is empty.
191 const SymbolBody *getFirstGlobalEntry() const;187 const Symbol *getFirstGlobalEntry() const;
192188
193 // Returns the number of entries in the local part of GOT including189 // Returns the number of entries in the local part of GOT including
194 // the number of reserved entries.190 // the number of reserved entries.
...@@ -248,7 +244,7 @@ private:...@@ -248,7 +244,7 @@ private:
248 // to the first index of "Page" entries allocated for this section.244 // to the first index of "Page" entries allocated for this section.
249 llvm::SmallMapVector<const OutputSection *, size_t, 16> PageIndexMap;245 llvm::SmallMapVector<const OutputSection *, size_t, 16> PageIndexMap;
250246
251 typedef std::pair<const SymbolBody *, uint64_t> GotEntry;247 typedef std::pair<const Symbol *, uint64_t> GotEntry;
252 typedef std::vector<GotEntry> GotEntries;248 typedef std::vector<GotEntry> GotEntries;
253 // Map from Symbol-Addend pair to the GOT index.249 // Map from Symbol-Addend pair to the GOT index.
254 llvm::DenseMap<GotEntry, size_t> EntryIndexMap;250 llvm::DenseMap<GotEntry, size_t> EntryIndexMap;
...@@ -261,7 +257,7 @@ private:...@@ -261,7 +257,7 @@ private:
261 GotEntries GlobalEntries;257 GotEntries GlobalEntries;
262258
263 // TLS entries.259 // TLS entries.
264 std::vector<const SymbolBody *> TlsEntries;260 std::vector<const Symbol *> TlsEntries;
265261
266 uint32_t TlsIndexOff = -1;262 uint32_t TlsIndexOff = -1;
267 uint64_t Size = 0;263 uint64_t Size = 0;
...@@ -270,13 +266,13 @@ private:...@@ -270,13 +266,13 @@ private:
270class GotPltSection final : public SyntheticSection {266class GotPltSection final : public SyntheticSection {
271public:267public:
272 GotPltSection();268 GotPltSection();
273 void addEntry(SymbolBody &Sym);269 void addEntry(Symbol &Sym);
274 size_t getSize() const override;270 size_t getSize() const override;
275 void writeTo(uint8_t *Buf) override;271 void writeTo(uint8_t *Buf) override;
276 bool empty() const override { return Entries.empty(); }272 bool empty() const override { return Entries.empty(); }
277273
278private:274private:
279 std::vector<const SymbolBody *> Entries;275 std::vector<const Symbol *> Entries;
280};276};
281277
282// The IgotPltSection is a Got associated with the PltSection for GNU Ifunc278// The IgotPltSection is a Got associated with the PltSection for GNU Ifunc
...@@ -286,13 +282,13 @@ private:...@@ -286,13 +282,13 @@ private:
286class IgotPltSection final : public SyntheticSection {282class IgotPltSection final : public SyntheticSection {
287public:283public:
288 IgotPltSection();284 IgotPltSection();
289 void addEntry(SymbolBody &Sym);285 void addEntry(Symbol &Sym);
290 size_t getSize() const override;286 size_t getSize() const override;
291 void writeTo(uint8_t *Buf) override;287 void writeTo(uint8_t *Buf) override;
292 bool empty() const override { return Entries.empty(); }288 bool empty() const override { return Entries.empty(); }
293289
294private:290private:
295 std::vector<const SymbolBody *> Entries;291 std::vector<const Symbol *> Entries;
296};292};
297293
298class StringTableSection final : public SyntheticSection {294class StringTableSection final : public SyntheticSection {
...@@ -315,8 +311,7 @@ private:...@@ -315,8 +311,7 @@ private:
315class DynamicReloc {311class DynamicReloc {
316public:312public:
317 DynamicReloc(uint32_t Type, const InputSectionBase *InputSec,313 DynamicReloc(uint32_t Type, const InputSectionBase *InputSec,
318 uint64_t OffsetInSec, bool UseSymVA, SymbolBody *Sym,314 uint64_t OffsetInSec, bool UseSymVA, Symbol *Sym, int64_t Addend)
319 int64_t Addend)
320 : Type(Type), Sym(Sym), InputSec(InputSec), OffsetInSec(OffsetInSec),315 : Type(Type), Sym(Sym), InputSec(InputSec), OffsetInSec(OffsetInSec),
321 UseSymVA(UseSymVA), Addend(Addend) {}316 UseSymVA(UseSymVA), Addend(Addend) {}
322317
...@@ -328,7 +323,7 @@ public:...@@ -328,7 +323,7 @@ public:
328 uint32_t Type;323 uint32_t Type;
329324
330private:325private:
331 SymbolBody *Sym;326 Symbol *Sym;
332 const InputSectionBase *InputSec = nullptr;327 const InputSectionBase *InputSec = nullptr;
333 uint64_t OffsetInSec;328 uint64_t OffsetInSec;
334 bool UseSymVA;329 bool UseSymVA;
...@@ -342,30 +337,8 @@ template <class ELFT> class DynamicSection final : public SyntheticSection {...@@ -342,30 +337,8 @@ template <class ELFT> class DynamicSection final : public SyntheticSection {
342 typedef typename ELFT::Shdr Elf_Shdr;337 typedef typename ELFT::Shdr Elf_Shdr;
343 typedef typename ELFT::Sym Elf_Sym;338 typedef typename ELFT::Sym Elf_Sym;
344339
345 // The .dynamic section contains information for the dynamic linker.
346 // The section consists of fixed size entries, which consist of
347 // type and value fields. Value are one of plain integers, symbol
348 // addresses, or section addresses. This struct represents the entry.
349 struct Entry {
350 int32_t Tag;
351 union {
352 OutputSection *OutSec;
353 InputSection *InSec;
354 uint64_t Val;
355 const SymbolBody *Sym;
356 };
357 enum KindT { SecAddr, SecSize, SymAddr, PlainInt, InSecAddr } Kind;
358 Entry(int32_t Tag, OutputSection *OutSec, KindT Kind = SecAddr)
359 : Tag(Tag), OutSec(OutSec), Kind(Kind) {}
360 Entry(int32_t Tag, InputSection *Sec)
361 : Tag(Tag), InSec(Sec), Kind(InSecAddr) {}
362 Entry(int32_t Tag, uint64_t Val) : Tag(Tag), Val(Val), Kind(PlainInt) {}
363 Entry(int32_t Tag, const SymbolBody *Sym)
364 : Tag(Tag), Sym(Sym), Kind(SymAddr) {}
365 };
366
367 // finalizeContents() fills this vector with the section contents.340 // finalizeContents() fills this vector with the section contents.
368 std::vector<Entry> Entries;341 std::vector<std::pair<int32_t, std::function<uint64_t()>>> Entries;
369342
370public:343public:
371 DynamicSection();344 DynamicSection();
...@@ -374,33 +347,66 @@ public:...@@ -374,33 +347,66 @@ public:
374 size_t getSize() const override { return Size; }347 size_t getSize() const override { return Size; }
375348
376private:349private:
377 void addEntries();350 void add(int32_t Tag, std::function<uint64_t()> Fn);
378 void add(Entry E) { Entries.push_back(E); }351 void addInt(int32_t Tag, uint64_t Val);
352 void addInSec(int32_t Tag, InputSection *Sec);
353 void addOutSec(int32_t Tag, OutputSection *Sec);
354 void addSize(int32_t Tag, OutputSection *Sec);
355 void addSym(int32_t Tag, Symbol *Sym);
356
379 uint64_t Size = 0;357 uint64_t Size = 0;
380};358};
381359
382template <class ELFT> class RelocationSection final : public SyntheticSection {360class RelocationBaseSection : public SyntheticSection {
361public:
362 RelocationBaseSection(StringRef Name, uint32_t Type, int32_t DynamicTag,
363 int32_t SizeDynamicTag);
364 void addReloc(const DynamicReloc &Reloc);
365 bool empty() const override { return Relocs.empty(); }
366 size_t getSize() const override { return Relocs.size() * this->Entsize; }
367 size_t getRelativeRelocCount() const { return NumRelativeRelocs; }
368 void finalizeContents() override;
369 int32_t DynamicTag, SizeDynamicTag;
370
371protected:
372 std::vector<DynamicReloc> Relocs;
373 size_t NumRelativeRelocs = 0;
374};
375
376template <class ELFT>
377class RelocationSection final : public RelocationBaseSection {
383 typedef typename ELFT::Rel Elf_Rel;378 typedef typename ELFT::Rel Elf_Rel;
384 typedef typename ELFT::Rela Elf_Rela;379 typedef typename ELFT::Rela Elf_Rela;
385380
386public:381public:
387 RelocationSection(StringRef Name, bool Sort);382 RelocationSection(StringRef Name, bool Sort);
388 void addReloc(const DynamicReloc &Reloc);
389 unsigned getRelocOffset();383 unsigned getRelocOffset();
390 void finalizeContents() override;
391 void writeTo(uint8_t *Buf) override;384 void writeTo(uint8_t *Buf) override;
392 bool empty() const override { return Relocs.empty(); }
393 size_t getSize() const override { return Relocs.size() * this->Entsize; }
394 size_t getRelativeRelocCount() const { return NumRelativeRelocs; }
395385
396private:386private:
397 bool Sort;387 bool Sort;
398 size_t NumRelativeRelocs = 0;388};
399 std::vector<DynamicReloc> Relocs;389
390template <class ELFT>
391class AndroidPackedRelocationSection final : public RelocationBaseSection {
392 typedef typename ELFT::Rel Elf_Rel;
393 typedef typename ELFT::Rela Elf_Rela;
394
395public:
396 AndroidPackedRelocationSection(StringRef Name);
397
398 bool updateAllocSize() override;
399 size_t getSize() const override { return RelocData.size(); }
400 void writeTo(uint8_t *Buf) override {
401 memcpy(Buf, RelocData.data(), RelocData.size());
402 }
403
404private:
405 SmallVector<char, 0> RelocData;
400};406};
401407
402struct SymbolTableEntry {408struct SymbolTableEntry {
403 SymbolBody *Symbol;409 Symbol *Sym;
404 size_t StrTabOffset;410 size_t StrTabOffset;
405};411};
406412
...@@ -410,9 +416,9 @@ public:...@@ -410,9 +416,9 @@ public:
410 void finalizeContents() override;416 void finalizeContents() override;
411 void postThunkContents() override;417 void postThunkContents() override;
412 size_t getSize() const override { return getNumSymbols() * Entsize; }418 size_t getSize() const override { return getNumSymbols() * Entsize; }
413 void addSymbol(SymbolBody *Body);419 void addSymbol(Symbol *Sym);
414 unsigned getNumSymbols() const { return Symbols.size() + 1; }420 unsigned getNumSymbols() const { return Symbols.size() + 1; }
415 size_t getSymbolIndex(SymbolBody *Body);421 size_t getSymbolIndex(Symbol *Sym);
416 ArrayRef<SymbolTableEntry> getSymbols() const { return Symbols; }422 ArrayRef<SymbolTableEntry> getSymbols() const { return Symbols; }
417423
418protected:424protected:
...@@ -420,6 +426,10 @@ protected:...@@ -420,6 +426,10 @@ protected:
420 std::vector<SymbolTableEntry> Symbols;426 std::vector<SymbolTableEntry> Symbols;
421427
422 StringTableSection &StrTabSec;428 StringTableSection &StrTabSec;
429
430 llvm::once_flag OnceFlag;
431 llvm::DenseMap<Symbol *, size_t> SymbolIndexMap;
432 llvm::DenseMap<OutputSection *, size_t> SectionIndexMap;
423};433};
424434
425template <class ELFT>435template <class ELFT>
...@@ -451,9 +461,10 @@ private:...@@ -451,9 +461,10 @@ private:
451 void writeHashTable(uint8_t *Buf);461 void writeHashTable(uint8_t *Buf);
452462
453 struct Entry {463 struct Entry {
454 SymbolBody *Body;464 Symbol *Sym;
455 size_t StrTabOffset;465 size_t StrTabOffset;
456 uint32_t Hash;466 uint32_t Hash;
467 uint32_t BucketIdx;
457 };468 };
458469
459 std::vector<Entry> Symbols;470 std::vector<Entry> Symbols;
...@@ -462,7 +473,7 @@ private:...@@ -462,7 +473,7 @@ private:
462 size_t Size = 0;473 size_t Size = 0;
463};474};
464475
465template <class ELFT> class HashTableSection final : public SyntheticSection {476class HashTableSection final : public SyntheticSection {
466public:477public:
467 HashTableSection();478 HashTableSection();
468 void finalizeContents() override;479 void finalizeContents() override;
...@@ -485,57 +496,81 @@ public:...@@ -485,57 +496,81 @@ public:
485 bool empty() const override { return Entries.empty(); }496 bool empty() const override { return Entries.empty(); }
486 void addSymbols();497 void addSymbols();
487498
488 template <class ELFT> void addEntry(SymbolBody &Sym);499 template <class ELFT> void addEntry(Symbol &Sym);
489500
490private:501private:
491 void writeHeader(uint8_t *Buf){};
492 void addHeaderSymbols(){};
493 unsigned getPltRelocOff() const;502 unsigned getPltRelocOff() const;
494 std::vector<std::pair<const SymbolBody *, unsigned>> Entries;503 std::vector<std::pair<const Symbol *, unsigned>> Entries;
495 // Iplt always has HeaderSize of 0, the Plt HeaderSize is always non-zero504 // Iplt always has HeaderSize of 0, the Plt HeaderSize is always non-zero
496 size_t HeaderSize;505 size_t HeaderSize;
497};506};
498507
499class GdbIndexSection final : public SyntheticSection {508// GdbIndexChunk is created for each .debug_info section and contains
500 const unsigned OffsetTypeSize = 4;509// information to create a part of .gdb_index for a given input section.
501 const unsigned CuListOffset = 6 * OffsetTypeSize;510struct GdbIndexChunk {
502 const unsigned CompilationUnitSize = 16;511 struct AddressEntry {
503 const unsigned AddressEntrySize = 16 + OffsetTypeSize;512 InputSection *Section;
504 const unsigned SymTabEntrySize = 2 * OffsetTypeSize;513 uint64_t LowAddress;
514 uint64_t HighAddress;
515 uint32_t CuIndex;
516 };
517
518 struct CuEntry {
519 uint64_t CuOffset;
520 uint64_t CuLength;
521 };
505522
523 struct NameTypeEntry {
524 llvm::CachedHashStringRef Name;
525 uint8_t Type;
526 };
527
528 InputSection *DebugInfoSec;
529 std::vector<AddressEntry> AddressAreas;
530 std::vector<CuEntry> CompilationUnits;
531 std::vector<NameTypeEntry> NamesAndTypes;
532};
533
534// The symbol type for the .gdb_index section.
535struct GdbSymbol {
536 uint32_t NameHash;
537 size_t NameOffset;
538 size_t CuVectorIndex;
539};
540
541class GdbIndexSection final : public SyntheticSection {
506public:542public:
507 GdbIndexSection(std::vector<GdbIndexChunk> &&Chunks);543 GdbIndexSection(std::vector<GdbIndexChunk> &&Chunks);
508 void finalizeContents() override;
509 void writeTo(uint8_t *Buf) override;544 void writeTo(uint8_t *Buf) override;
510 size_t getSize() const override;545 size_t getSize() const override;
511 bool empty() const override;546 bool empty() const override;
512547
513 // Symbol table is a hash table for types and names.548private:
514 // It is the area of gdb index.549 void fixCuIndex();
515 GdbHashTab SymbolTable;550 std::vector<std::vector<uint32_t>> createCuVectors();
551 std::vector<GdbSymbol *> createGdbSymtab();
552
553 // A symbol table for this .gdb_index section.
554 std::vector<GdbSymbol *> GdbSymtab;
516555
517 // CU vector is a part of constant pool area of section.556 // CU vector is a part of constant pool area of section.
518 std::vector<std::set<uint32_t>> CuVectors;557 std::vector<std::vector<uint32_t>> CuVectors;
519558
520 // String pool is also a part of constant pool, it follows CU vectors.559 // Symbol table contents.
521 llvm::StringTableBuilder StringPool;560 llvm::DenseMap<llvm::CachedHashStringRef, GdbSymbol *> Symbols;
522561
523 // Each chunk contains information gathered from a debug sections of single562 // Each chunk contains information gathered from a debug sections of single
524 // object and used to build different areas of gdb index.563 // object and used to build different areas of gdb index.
525 std::vector<GdbIndexChunk> Chunks;564 std::vector<GdbIndexChunk> Chunks;
526565
527private:566 static constexpr uint32_t CuListOffset = 24;
528 void buildIndex();
529
530 uint32_t CuTypesOffset;567 uint32_t CuTypesOffset;
531 uint32_t SymTabOffset;568 uint32_t SymtabOffset;
532 uint32_t ConstantPoolOffset;569 uint32_t ConstantPoolOffset;
533 uint32_t StringPoolOffset;570 uint32_t StringPoolOffset;
571 uint32_t StringPoolSize;
534572
535 size_t CuVectorsSize = 0;573 std::vector<size_t> CuVectorOffsets;
536 std::vector<size_t> CuVectorsOffset;
537
538 bool Finalized = false;
539};574};
540575
541template <class ELFT> GdbIndexSection *createGdbIndex();576template <class ELFT> GdbIndexSection *createGdbIndex();
...@@ -549,21 +584,12 @@ template <class ELFT> GdbIndexSection *createGdbIndex();...@@ -549,21 +584,12 @@ template <class ELFT> GdbIndexSection *createGdbIndex();
549// Detailed info about internals can be found in Ian Lance Taylor's blog:584// Detailed info about internals can be found in Ian Lance Taylor's blog:
550// http://www.airs.com/blog/archives/460 (".eh_frame")585// http://www.airs.com/blog/archives/460 (".eh_frame")
551// http://www.airs.com/blog/archives/462 (".eh_frame_hdr")586// http://www.airs.com/blog/archives/462 (".eh_frame_hdr")
552template <class ELFT> class EhFrameHeader final : public SyntheticSection {587class EhFrameHeader final : public SyntheticSection {
553public:588public:
554 EhFrameHeader();589 EhFrameHeader();
555 void writeTo(uint8_t *Buf) override;590 void writeTo(uint8_t *Buf) override;
556 size_t getSize() const override;591 size_t getSize() const override;
557 void addFde(uint32_t Pc, uint32_t FdeVA);
558 bool empty() const override;592 bool empty() const override;
559
560private:
561 struct FdeData {
562 uint32_t Pc;
563 uint32_t FdeVA;
564 };
565
566 std::vector<FdeData> Fdes;
567};593};
568594
569// For more information about .gnu.version and .gnu.version_r see:595// For more information about .gnu.version and .gnu.version_r see:
...@@ -639,22 +665,58 @@ public:...@@ -639,22 +665,58 @@ public:
639// with different attributes in a single output sections. To do that665// with different attributes in a single output sections. To do that
640// we put them into MergeSyntheticSection synthetic input sections which are666// we put them into MergeSyntheticSection synthetic input sections which are
641// attached to regular output sections.667// attached to regular output sections.
642class MergeSyntheticSection final : public SyntheticSection {668class MergeSyntheticSection : public SyntheticSection {
643public:669public:
644 MergeSyntheticSection(StringRef Name, uint32_t Type, uint64_t Flags,
645 uint32_t Alignment);
646 void addSection(MergeInputSection *MS);670 void addSection(MergeInputSection *MS);
671
672protected:
673 MergeSyntheticSection(StringRef Name, uint32_t Type, uint64_t Flags,
674 uint32_t Alignment)
675 : SyntheticSection(Flags, Type, Alignment, Name) {}
676
677 std::vector<MergeInputSection *> Sections;
678};
679
680class MergeTailSection final : public MergeSyntheticSection {
681public:
682 MergeTailSection(StringRef Name, uint32_t Type, uint64_t Flags,
683 uint32_t Alignment);
684
685 size_t getSize() const override;
647 void writeTo(uint8_t *Buf) override;686 void writeTo(uint8_t *Buf) override;
648 void finalizeContents() override;687 void finalizeContents() override;
649 bool shouldTailMerge() const;
650 size_t getSize() const override;
651688
652private:689private:
653 void finalizeTailMerge();
654 void finalizeNoTailMerge();
655
656 llvm::StringTableBuilder Builder;690 llvm::StringTableBuilder Builder;
657 std::vector<MergeInputSection *> Sections;691};
692
693class MergeNoTailSection final : public MergeSyntheticSection {
694public:
695 MergeNoTailSection(StringRef Name, uint32_t Type, uint64_t Flags,
696 uint32_t Alignment)
697 : MergeSyntheticSection(Name, Type, Flags, Alignment) {}
698
699 size_t getSize() const override { return Size; }
700 void writeTo(uint8_t *Buf) override;
701 void finalizeContents() override;
702
703private:
704 // We use the most significant bits of a hash as a shard ID.
705 // The reason why we don't want to use the least significant bits is
706 // because DenseMap also uses lower bits to determine a bucket ID.
707 // If we use lower bits, it significantly increases the probability of
708 // hash collisons.
709 size_t getShardId(uint32_t Hash) {
710 return Hash >> (32 - llvm::countTrailingZeros(NumShards));
711 }
712
713 // Section size
714 size_t Size;
715
716 // String table contents
717 constexpr static size_t NumShards = 32;
718 std::vector<llvm::StringTableBuilder> Shards;
719 size_t ShardOffsets[NumShards];
658};720};
659721
660// .MIPS.abiflags section.722// .MIPS.abiflags section.
...@@ -723,6 +785,9 @@ public:...@@ -723,6 +785,9 @@ public:
723 ARMExidxSentinelSection();785 ARMExidxSentinelSection();
724 size_t getSize() const override { return 8; }786 size_t getSize() const override { return 8; }
725 void writeTo(uint8_t *Buf) override;787 void writeTo(uint8_t *Buf) override;
788 bool empty() const override;
789
790 InputSection *Highest = 0;
726};791};
727792
728// A container for one or more linker generated thunks. Instances of these793// A container for one or more linker generated thunks. Instances of these
...@@ -746,13 +811,13 @@ private:...@@ -746,13 +811,13 @@ private:
746 size_t Size = 0;811 size_t Size = 0;
747};812};
748813
749template <class ELFT> InputSection *createCommonSection();
750InputSection *createInterpSection();814InputSection *createInterpSection();
751template <class ELFT> MergeInputSection *createCommentSection();815MergeInputSection *createCommentSection();
752void decompressAndMergeSections();816void decompressSections();
817void mergeSections();
753818
754SymbolBody *addSyntheticLocal(StringRef Name, uint8_t Type, uint64_t Value,819Symbol *addSyntheticLocal(StringRef Name, uint8_t Type, uint64_t Value,
755 uint64_t Size, InputSectionBase *Section);820 uint64_t Size, InputSectionBase &Section);
756821
757// Linker generated sections which can be used as inputs.822// Linker generated sections which can be used as inputs.
758struct InX {823struct InX {
...@@ -760,11 +825,13 @@ struct InX {...@@ -760,11 +825,13 @@ struct InX {
760 static BssSection *Bss;825 static BssSection *Bss;
761 static BssSection *BssRelRo;826 static BssSection *BssRelRo;
762 static BuildIdSection *BuildId;827 static BuildIdSection *BuildId;
763 static InputSection *Common;828 static EhFrameHeader *EhFrameHdr;
829 static EhFrameSection *EhFrame;
764 static SyntheticSection *Dynamic;830 static SyntheticSection *Dynamic;
765 static StringTableSection *DynStrTab;831 static StringTableSection *DynStrTab;
766 static SymbolTableBaseSection *DynSymTab;832 static SymbolTableBaseSection *DynSymTab;
767 static GnuHashTableSection *GnuHashTab;833 static GnuHashTableSection *GnuHashTab;
834 static HashTableSection *HashTab;
768 static InputSection *Interp;835 static InputSection *Interp;
769 static GdbIndexSection *GdbIndex;836 static GdbIndexSection *GdbIndex;
770 static GotSection *Got;837 static GotSection *Got;
...@@ -774,29 +841,20 @@ struct InX {...@@ -774,29 +841,20 @@ struct InX {
774 static MipsRldMapSection *MipsRldMap;841 static MipsRldMapSection *MipsRldMap;
775 static PltSection *Plt;842 static PltSection *Plt;
776 static PltSection *Iplt;843 static PltSection *Iplt;
844 static RelocationBaseSection *RelaDyn;
845 static RelocationBaseSection *RelaPlt;
846 static RelocationBaseSection *RelaIplt;
777 static StringTableSection *ShStrTab;847 static StringTableSection *ShStrTab;
778 static StringTableSection *StrTab;848 static StringTableSection *StrTab;
779 static SymbolTableBaseSection *SymTab;849 static SymbolTableBaseSection *SymTab;
780};850};
781851
782template <class ELFT> struct In : public InX {852template <class ELFT> struct In {
783 static EhFrameHeader<ELFT> *EhFrameHdr;
784 static EhFrameSection<ELFT> *EhFrame;
785 static HashTableSection<ELFT> *HashTab;
786 static RelocationSection<ELFT> *RelaDyn;
787 static RelocationSection<ELFT> *RelaPlt;
788 static RelocationSection<ELFT> *RelaIplt;
789 static VersionDefinitionSection<ELFT> *VerDef;853 static VersionDefinitionSection<ELFT> *VerDef;
790 static VersionTableSection<ELFT> *VerSym;854 static VersionTableSection<ELFT> *VerSym;
791 static VersionNeedSection<ELFT> *VerNeed;855 static VersionNeedSection<ELFT> *VerNeed;
792};856};
793857
794template <class ELFT> EhFrameHeader<ELFT> *In<ELFT>::EhFrameHdr;
795template <class ELFT> EhFrameSection<ELFT> *In<ELFT>::EhFrame;
796template <class ELFT> HashTableSection<ELFT> *In<ELFT>::HashTab;
797template <class ELFT> RelocationSection<ELFT> *In<ELFT>::RelaDyn;
798template <class ELFT> RelocationSection<ELFT> *In<ELFT>::RelaPlt;
799template <class ELFT> RelocationSection<ELFT> *In<ELFT>::RelaIplt;
800template <class ELFT> VersionDefinitionSection<ELFT> *In<ELFT>::VerDef;858template <class ELFT> VersionDefinitionSection<ELFT> *In<ELFT>::VerDef;
801template <class ELFT> VersionTableSection<ELFT> *In<ELFT>::VerSym;859template <class ELFT> VersionTableSection<ELFT> *In<ELFT>::VerSym;
802template <class ELFT> VersionNeedSection<ELFT> *In<ELFT>::VerNeed;860template <class ELFT> VersionNeedSection<ELFT> *In<ELFT>::VerNeed;
deps/lld/ELF/Target.cpp+21-15
...@@ -25,11 +25,11 @@...@@ -25,11 +25,11 @@
25//===----------------------------------------------------------------------===//25//===----------------------------------------------------------------------===//
2626
27#include "Target.h"27#include "Target.h"
28#include "Error.h"
29#include "InputFiles.h"28#include "InputFiles.h"
30#include "OutputSections.h"29#include "OutputSections.h"
31#include "SymbolTable.h"30#include "SymbolTable.h"
32#include "Symbols.h"31#include "Symbols.h"
32#include "lld/Common/ErrorHandler.h"
33#include "llvm/Object/ELF.h"33#include "llvm/Object/ELF.h"
3434
35using namespace llvm;35using namespace llvm;
...@@ -40,7 +40,7 @@ using namespace lld::elf;...@@ -40,7 +40,7 @@ using namespace lld::elf;
4040
41TargetInfo *elf::Target;41TargetInfo *elf::Target;
4242
43std::string lld::toString(uint32_t Type) {43std::string lld::toString(RelType Type) {
44 StringRef S = getELFRelocationTypeName(elf::Config->EMachine, Type);44 StringRef S = getELFRelocationTypeName(elf::Config->EMachine, Type);
45 if (S == "Unknown")45 if (S == "Unknown")
46 return ("Unknown (" + Twine(Type) + ")").str();46 return ("Unknown (" + Twine(Type) + ")").str();
...@@ -89,7 +89,7 @@ TargetInfo *elf::getTarget() {...@@ -89,7 +89,7 @@ TargetInfo *elf::getTarget() {
8989
90template <class ELFT> static std::string getErrorLoc(const uint8_t *Loc) {90template <class ELFT> static std::string getErrorLoc(const uint8_t *Loc) {
91 for (InputSectionBase *D : InputSections) {91 for (InputSectionBase *D : InputSections) {
92 auto *IS = dyn_cast_or_null<InputSection>(D);92 auto *IS = dyn_cast<InputSection>(D);
93 if (!IS || !IS->getParent())93 if (!IS || !IS->getParent())
94 continue;94 continue;
9595
...@@ -117,27 +117,26 @@ std::string elf::getErrorLocation(const uint8_t *Loc) {...@@ -117,27 +117,26 @@ std::string elf::getErrorLocation(const uint8_t *Loc) {
117117
118TargetInfo::~TargetInfo() {}118TargetInfo::~TargetInfo() {}
119119
120int64_t TargetInfo::getImplicitAddend(const uint8_t *Buf, uint32_t Type) const {120int64_t TargetInfo::getImplicitAddend(const uint8_t *Buf, RelType Type) const {
121 return 0;121 return 0;
122}122}
123123
124bool TargetInfo::usesOnlyLowPageBits(uint32_t Type) const { return false; }124bool TargetInfo::usesOnlyLowPageBits(RelType Type) const { return false; }
125125
126bool TargetInfo::needsThunk(RelExpr Expr, uint32_t RelocType,126bool TargetInfo::needsThunk(RelExpr Expr, RelType Type, const InputFile *File,
127 const InputFile *File, const SymbolBody &S) const {127 uint64_t BranchAddr, const Symbol &S) const {
128 return false;128 return false;
129}129}
130130
131bool TargetInfo::inBranchRange(uint32_t RelocType, uint64_t Src,131bool TargetInfo::inBranchRange(RelType Type, uint64_t Src, uint64_t Dst) const {
132 uint64_t Dst) const {
133 return true;132 return true;
134}133}
135134
136void TargetInfo::writeIgotPlt(uint8_t *Buf, const SymbolBody &S) const {135void TargetInfo::writeIgotPlt(uint8_t *Buf, const Symbol &S) const {
137 writeGotPlt(Buf, S);136 writeGotPlt(Buf, S);
138}137}
139138
140RelExpr TargetInfo::adjustRelaxExpr(uint32_t Type, const uint8_t *Data,139RelExpr TargetInfo::adjustRelaxExpr(RelType Type, const uint8_t *Data,
141 RelExpr Expr) const {140 RelExpr Expr) const {
142 return Expr;141 return Expr;
143}142}
...@@ -146,22 +145,29 @@ void TargetInfo::relaxGot(uint8_t *Loc, uint64_t Val) const {...@@ -146,22 +145,29 @@ void TargetInfo::relaxGot(uint8_t *Loc, uint64_t Val) const {
146 llvm_unreachable("Should not have claimed to be relaxable");145 llvm_unreachable("Should not have claimed to be relaxable");
147}146}
148147
149void TargetInfo::relaxTlsGdToLe(uint8_t *Loc, uint32_t Type,148void TargetInfo::relaxTlsGdToLe(uint8_t *Loc, RelType Type,
150 uint64_t Val) const {149 uint64_t Val) const {
151 llvm_unreachable("Should not have claimed to be relaxable");150 llvm_unreachable("Should not have claimed to be relaxable");
152}151}
153152
154void TargetInfo::relaxTlsGdToIe(uint8_t *Loc, uint32_t Type,153void TargetInfo::relaxTlsGdToIe(uint8_t *Loc, RelType Type,
155 uint64_t Val) const {154 uint64_t Val) const {
156 llvm_unreachable("Should not have claimed to be relaxable");155 llvm_unreachable("Should not have claimed to be relaxable");
157}156}
158157
159void TargetInfo::relaxTlsIeToLe(uint8_t *Loc, uint32_t Type,158void TargetInfo::relaxTlsIeToLe(uint8_t *Loc, RelType Type,
160 uint64_t Val) const {159 uint64_t Val) const {
161 llvm_unreachable("Should not have claimed to be relaxable");160 llvm_unreachable("Should not have claimed to be relaxable");
162}161}
163162
164void TargetInfo::relaxTlsLdToLe(uint8_t *Loc, uint32_t Type,163void TargetInfo::relaxTlsLdToLe(uint8_t *Loc, RelType Type,
165 uint64_t Val) const {164 uint64_t Val) const {
166 llvm_unreachable("Should not have claimed to be relaxable");165 llvm_unreachable("Should not have claimed to be relaxable");
167}166}
167
168uint64_t TargetInfo::getImageBase() {
169 // Use -image-base if set. Fall back to the target default if not.
170 if (Config->ImageBase)
171 return *Config->ImageBase;
172 return Config->Pic ? 0 : DefaultImageBase;
173}
deps/lld/ELF/Target.h+69-46
...@@ -10,25 +10,27 @@...@@ -10,25 +10,27 @@
10#ifndef LLD_ELF_TARGET_H10#ifndef LLD_ELF_TARGET_H
11#define LLD_ELF_TARGET_H11#define LLD_ELF_TARGET_H
1212
13#include "Error.h"
14#include "InputSection.h"13#include "InputSection.h"
14#include "lld/Common/ErrorHandler.h"
15#include "llvm/Object/ELF.h"15#include "llvm/Object/ELF.h"
1616
17namespace lld {17namespace lld {
18std::string toString(uint32_t RelType);18std::string toString(elf::RelType Type);
1919
20namespace elf {20namespace elf {
21class Defined;
21class InputFile;22class InputFile;
22class SymbolBody;23class Symbol;
2324
24class TargetInfo {25class TargetInfo {
25public:26public:
26 virtual bool isPicRel(uint32_t Type) const { return true; }27 virtual uint32_t calcEFlags() const { return 0; }
27 virtual uint32_t getDynRel(uint32_t Type) const { return Type; }28 virtual bool isPicRel(RelType Type) const { return true; }
29 virtual RelType getDynRel(RelType Type) const { return Type; }
28 virtual void writeGotPltHeader(uint8_t *Buf) const {}30 virtual void writeGotPltHeader(uint8_t *Buf) const {}
29 virtual void writeGotPlt(uint8_t *Buf, const SymbolBody &S) const {};31 virtual void writeGotPlt(uint8_t *Buf, const Symbol &S) const {};
30 virtual void writeIgotPlt(uint8_t *Buf, const SymbolBody &S) const;32 virtual void writeIgotPlt(uint8_t *Buf, const Symbol &S) const;
31 virtual int64_t getImplicitAddend(const uint8_t *Buf, uint32_t Type) const;33 virtual int64_t getImplicitAddend(const uint8_t *Buf, RelType Type) const;
3234
33 // If lazy binding is supported, the first entry of the PLT has code35 // If lazy binding is supported, the first entry of the PLT has code
34 // to call the dynamic linker to resolve PLT entries the first time36 // to call the dynamic linker to resolve PLT entries the first time
...@@ -38,50 +40,54 @@ public:...@@ -38,50 +40,54 @@ public:
38 virtual void writePlt(uint8_t *Buf, uint64_t GotEntryAddr,40 virtual void writePlt(uint8_t *Buf, uint64_t GotEntryAddr,
39 uint64_t PltEntryAddr, int32_t Index,41 uint64_t PltEntryAddr, int32_t Index,
40 unsigned RelOff) const {}42 unsigned RelOff) const {}
41 virtual void addPltHeaderSymbols(InputSectionBase *IS) const {}43 virtual void addPltHeaderSymbols(InputSection &IS) const {}
42 virtual void addPltSymbols(InputSectionBase *IS, uint64_t Off) const {}44 virtual void addPltSymbols(InputSection &IS, uint64_t Off) const {}
45
43 // Returns true if a relocation only uses the low bits of a value such that46 // Returns true if a relocation only uses the low bits of a value such that
44 // all those bits are in in the same page. For example, if the relocation47 // all those bits are in in the same page. For example, if the relocation
45 // only uses the low 12 bits in a system with 4k pages. If this is true, the48 // only uses the low 12 bits in a system with 4k pages. If this is true, the
46 // bits will always have the same value at runtime and we don't have to emit49 // bits will always have the same value at runtime and we don't have to emit
47 // a dynamic relocation.50 // a dynamic relocation.
48 virtual bool usesOnlyLowPageBits(uint32_t Type) const;51 virtual bool usesOnlyLowPageBits(RelType Type) const;
4952
50 // Decide whether a Thunk is needed for the relocation from File53 // Decide whether a Thunk is needed for the relocation from File
51 // targeting S.54 // targeting S.
52 virtual bool needsThunk(RelExpr Expr, uint32_t RelocType,55 virtual bool needsThunk(RelExpr Expr, RelType RelocType,
53 const InputFile *File, const SymbolBody &S) const;56 const InputFile *File, uint64_t BranchAddr,
57 const Symbol &S) const;
54 // Return true if we can reach Dst from Src with Relocation RelocType58 // Return true if we can reach Dst from Src with Relocation RelocType
55 virtual bool inBranchRange(uint32_t RelocType, uint64_t Src,59 virtual bool inBranchRange(RelType Type, uint64_t Src,
56 uint64_t Dst) const;60 uint64_t Dst) const;
57 virtual RelExpr getRelExpr(uint32_t Type, const SymbolBody &S,61 virtual RelExpr getRelExpr(RelType Type, const Symbol &S,
58 const uint8_t *Loc) const = 0;62 const uint8_t *Loc) const = 0;
59 virtual void relocateOne(uint8_t *Loc, uint32_t Type, uint64_t Val) const = 0;63
64 virtual void relocateOne(uint8_t *Loc, RelType Type, uint64_t Val) const = 0;
65
60 virtual ~TargetInfo();66 virtual ~TargetInfo();
6167
62 unsigned TlsGdRelaxSkip = 1;68 unsigned TlsGdRelaxSkip = 1;
63 unsigned PageSize = 4096;69 unsigned PageSize = 4096;
64 unsigned DefaultMaxPageSize = 4096;70 unsigned DefaultMaxPageSize = 4096;
6571
66 // On FreeBSD x86_64 the first page cannot be mmaped.72 uint64_t getImageBase();
67 // On Linux that is controled by vm.mmap_min_addr. At least on some x86_64
68 // installs that is 65536, so the first 15 pages cannot be used.
69 // Given that, the smallest value that can be used in here is 0x10000.
70 uint64_t DefaultImageBase = 0x10000;
7173
72 // Offset of _GLOBAL_OFFSET_TABLE_ from base of .got section. Use -1 for74 // Offset of _GLOBAL_OFFSET_TABLE_ from base of .got section. Use -1 for
73 // end of .got75 // end of .got
74 uint64_t GotBaseSymOff = 0;76 uint64_t GotBaseSymOff = 0;
7577
76 uint32_t CopyRel;78 // On systems with range extensions we place collections of Thunks at
77 uint32_t GotRel;79 // regular spacings that enable the majority of branches reach the Thunks.
78 uint32_t PltRel;80 uint32_t ThunkSectionSpacing = 0;
79 uint32_t RelativeRel;81
80 uint32_t IRelativeRel;82 RelType CopyRel;
81 uint32_t TlsDescRel;83 RelType GotRel;
82 uint32_t TlsGotRel;84 RelType PltRel;
83 uint32_t TlsModuleIndexRel;85 RelType RelativeRel;
84 uint32_t TlsOffsetRel;86 RelType IRelativeRel;
87 RelType TlsDescRel;
88 RelType TlsGotRel;
89 RelType TlsModuleIndexRel;
90 RelType TlsOffsetRel;
85 unsigned GotEntrySize = 0;91 unsigned GotEntrySize = 0;
86 unsigned GotPltEntrySize = 0;92 unsigned GotPltEntrySize = 0;
87 unsigned PltEntrySize;93 unsigned PltEntrySize;
...@@ -100,13 +106,20 @@ public:...@@ -100,13 +106,20 @@ public:
100 // executable OutputSections.106 // executable OutputSections.
101 uint32_t TrapInstr = 0;107 uint32_t TrapInstr = 0;
102108
103 virtual RelExpr adjustRelaxExpr(uint32_t Type, const uint8_t *Data,109 virtual RelExpr adjustRelaxExpr(RelType Type, const uint8_t *Data,
104 RelExpr Expr) const;110 RelExpr Expr) const;
105 virtual void relaxGot(uint8_t *Loc, uint64_t Val) const;111 virtual void relaxGot(uint8_t *Loc, uint64_t Val) const;
106 virtual void relaxTlsGdToIe(uint8_t *Loc, uint32_t Type, uint64_t Val) const;112 virtual void relaxTlsGdToIe(uint8_t *Loc, RelType Type, uint64_t Val) const;
107 virtual void relaxTlsGdToLe(uint8_t *Loc, uint32_t Type, uint64_t Val) const;113 virtual void relaxTlsGdToLe(uint8_t *Loc, RelType Type, uint64_t Val) const;
108 virtual void relaxTlsIeToLe(uint8_t *Loc, uint32_t Type, uint64_t Val) const;114 virtual void relaxTlsIeToLe(uint8_t *Loc, RelType Type, uint64_t Val) const;
109 virtual void relaxTlsLdToLe(uint8_t *Loc, uint32_t Type, uint64_t Val) const;115 virtual void relaxTlsLdToLe(uint8_t *Loc, RelType Type, uint64_t Val) const;
116
117protected:
118 // On FreeBSD x86_64 the first page cannot be mmaped.
119 // On Linux that is controled by vm.mmap_min_addr. At least on some x86_64
120 // installs that is 65536, so the first 15 pages cannot be used.
121 // Given that, the smallest value that can be used in here is 0x10000.
122 uint64_t DefaultImageBase = 0x10000;
110};123};
111124
112TargetInfo *getAArch64TargetInfo();125TargetInfo *getAArch64TargetInfo();
...@@ -129,32 +142,42 @@ uint64_t getAArch64Page(uint64_t Expr);...@@ -129,32 +142,42 @@ uint64_t getAArch64Page(uint64_t Expr);
129extern TargetInfo *Target;142extern TargetInfo *Target;
130TargetInfo *getTarget();143TargetInfo *getTarget();
131144
145template <class ELFT> bool isMipsPIC(const Defined *Sym);
146
147static inline void reportRangeError(uint8_t *Loc, RelType Type, const Twine &V,
148 int64_t Min, uint64_t Max) {
149 error(getErrorLocation(Loc) + "relocation " + lld::toString(Type) +
150 " out of range: " + V + " is not in [" + Twine(Min) + ", " +
151 Twine(Max) + "]");
152}
153
132template <unsigned N>154template <unsigned N>
133static void checkInt(uint8_t *Loc, int64_t V, uint32_t Type) {155static void checkInt(uint8_t *Loc, int64_t V, RelType Type) {
134 if (!llvm::isInt<N>(V))156 if (!llvm::isInt<N>(V))
135 error(getErrorLocation(Loc) + "relocation " + lld::toString(Type) +157 reportRangeError(Loc, Type, Twine(V), llvm::minIntN(N), llvm::maxIntN(N));
136 " out of range");
137}158}
138159
139template <unsigned N>160template <unsigned N>
140static void checkUInt(uint8_t *Loc, uint64_t V, uint32_t Type) {161static void checkUInt(uint8_t *Loc, uint64_t V, RelType Type) {
141 if (!llvm::isUInt<N>(V))162 if (!llvm::isUInt<N>(V))
142 error(getErrorLocation(Loc) + "relocation " + lld::toString(Type) +163 reportRangeError(Loc, Type, Twine(V), 0, llvm::maxUIntN(N));
143 " out of range");
144}164}
145165
146template <unsigned N>166template <unsigned N>
147static void checkIntUInt(uint8_t *Loc, uint64_t V, uint32_t Type) {167static void checkIntUInt(uint8_t *Loc, uint64_t V, RelType Type) {
148 if (!llvm::isInt<N>(V) && !llvm::isUInt<N>(V))168 if (!llvm::isInt<N>(V) && !llvm::isUInt<N>(V))
149 error(getErrorLocation(Loc) + "relocation " + lld::toString(Type) +169 // For the error message we should cast V to a signed integer so that error
150 " out of range");170 // messages show a small negative value rather than an extremely large one
171 reportRangeError(Loc, Type, Twine((int64_t)V), llvm::minIntN(N),
172 llvm::maxUIntN(N));
151}173}
152174
153template <unsigned N>175template <unsigned N>
154static void checkAlignment(uint8_t *Loc, uint64_t V, uint32_t Type) {176static void checkAlignment(uint8_t *Loc, uint64_t V, RelType Type) {
155 if ((V & (N - 1)) != 0)177 if ((V & (N - 1)) != 0)
156 error(getErrorLocation(Loc) + "improper alignment for relocation " +178 error(getErrorLocation(Loc) + "improper alignment for relocation " +
157 lld::toString(Type));179 lld::toString(Type) + ": 0x" + llvm::utohexstr(V) +
180 " is not aligned to " + Twine(N) + " bytes");
158}181}
159} // namespace elf182} // namespace elf
160} // namespace lld183} // namespace lld
deps/lld/ELF/Threads.h deleted-88
...@@ -1,88 +0,0 @@
1//===- Threads.h ------------------------------------------------*- C++ -*-===//
2//
3// The LLVM Linker
4//
5// This file is distributed under the University of Illinois Open Source
6// License. See LICENSE.TXT for details.
7//
8//===----------------------------------------------------------------------===//
9//
10// LLD supports threads to distribute workloads to multiple cores. Using
11// multicore is most effective when more than one core are idle. At the
12// last step of a build, it is often the case that a linker is the only
13// active process on a computer. So, we are naturally interested in using
14// threads wisely to reduce latency to deliver results to users.
15//
16// That said, we don't want to do "too clever" things using threads.
17// Complex multi-threaded algorithms are sometimes extremely hard to
18// reason about and can easily mess up the entire design.
19//
20// Fortunately, when a linker links large programs (when the link time is
21// most critical), it spends most of the time to work on massive number of
22// small pieces of data of the same kind, and there are opportunities for
23// large parallelism there. Here are examples:
24//
25// - We have hundreds of thousands of input sections that need to be
26// copied to a result file at the last step of link. Once we fix a file
27// layout, each section can be copied to its destination and its
28// relocations can be applied independently.
29//
30// - We have tens of millions of small strings when constructing a
31// mergeable string section.
32//
33// For the cases such as the former, we can just use parallel_for_each
34// instead of std::for_each (or a plain for loop). Because tasks are
35// completely independent from each other, we can run them in parallel
36// without any coordination between them. That's very easy to understand
37// and reason about.
38//
39// For the cases such as the latter, we can use parallel algorithms to
40// deal with massive data. We have to write code for a tailored algorithm
41// for each problem, but the complexity of multi-threading is isolated in
42// a single pass and doesn't affect the linker's overall design.
43//
44// The above approach seems to be working fairly well. As an example, when
45// linking Chromium (output size 1.6 GB), using 4 cores reduces latency to
46// 75% compared to single core (from 12.66 seconds to 9.55 seconds) on my
47// Ivy Bridge Xeon 2.8 GHz machine. Using 40 cores reduces it to 63% (from
48// 12.66 seconds to 7.95 seconds). Because of the Amdahl's law, the
49// speedup is not linear, but as you add more cores, it gets faster.
50//
51// On a final note, if you are trying to optimize, keep the axiom "don't
52// guess, measure!" in mind. Some important passes of the linker are not
53// that slow. For example, resolving all symbols is not a very heavy pass,
54// although it would be very hard to parallelize it. You want to first
55// identify a slow pass and then optimize it.
56//
57//===----------------------------------------------------------------------===//
58
59#ifndef LLD_ELF_THREADS_H
60#define LLD_ELF_THREADS_H
61
62#include "Config.h"
63
64#include "llvm/Support/Parallel.h"
65#include <functional>
66
67namespace lld {
68namespace elf {
69
70template <class IterTy, class FuncTy>
71void parallelForEach(IterTy Begin, IterTy End, FuncTy Fn) {
72 if (Config->Threads)
73 for_each(llvm::parallel::par, Begin, End, Fn);
74 else
75 for_each(llvm::parallel::seq, Begin, End, Fn);
76}
77
78inline void parallelForEachN(size_t Begin, size_t End,
79 std::function<void(size_t)> Fn) {
80 if (Config->Threads)
81 for_each_n(llvm::parallel::par, Begin, End, Fn);
82 else
83 for_each_n(llvm::parallel::seq, Begin, End, Fn);
84}
85} // namespace elf
86} // namespace lld
87
88#endif
deps/lld/ELF/Thunks.cpp+208-47
...@@ -23,13 +23,13 @@...@@ -23,13 +23,13 @@
2323
24#include "Thunks.h"24#include "Thunks.h"
25#include "Config.h"25#include "Config.h"
26#include "Error.h"
27#include "InputSection.h"26#include "InputSection.h"
28#include "Memory.h"
29#include "OutputSections.h"27#include "OutputSections.h"
30#include "Symbols.h"28#include "Symbols.h"
31#include "SyntheticSections.h"29#include "SyntheticSections.h"
32#include "Target.h"30#include "Target.h"
31#include "lld/Common/ErrorHandler.h"
32#include "lld/Common/Memory.h"
33#include "llvm/BinaryFormat/ELF.h"33#include "llvm/BinaryFormat/ELF.h"
34#include "llvm/Support/Casting.h"34#include "llvm/Support/Casting.h"
35#include "llvm/Support/Endian.h"35#include "llvm/Support/Endian.h"
...@@ -48,52 +48,69 @@ namespace elf {...@@ -48,52 +48,69 @@ namespace elf {
4848
49namespace {49namespace {
5050
51// AArch64 long range Thunks
52class AArch64ABSLongThunk final : public Thunk {
53public:
54 AArch64ABSLongThunk(Symbol &Dest) : Thunk(Dest) {}
55 uint32_t size() const override { return 16; }
56 void writeTo(uint8_t *Buf, ThunkSection &IS) const override;
57 void addSymbols(ThunkSection &IS) override;
58};
59
60class AArch64ADRPThunk final : public Thunk {
61public:
62 AArch64ADRPThunk(Symbol &Dest) : Thunk(Dest) {}
63 uint32_t size() const override { return 12; }
64 void writeTo(uint8_t *Buf, ThunkSection &IS) const override;
65 void addSymbols(ThunkSection &IS) override;
66};
67
51// Specific ARM Thunk implementations. The naming convention is:68// Specific ARM Thunk implementations. The naming convention is:
52// Source State, TargetState, Target Requirement, ABS or PI, Range69// Source State, TargetState, Target Requirement, ABS or PI, Range
53class ARMV7ABSLongThunk final : public Thunk {70class ARMV7ABSLongThunk final : public Thunk {
54public:71public:
55 ARMV7ABSLongThunk(const SymbolBody &Dest) : Thunk(Dest) {}72 ARMV7ABSLongThunk(Symbol &Dest) : Thunk(Dest) {}
5673
57 uint32_t size() const override { return 12; }74 uint32_t size() const override { return 12; }
58 void writeTo(uint8_t *Buf, ThunkSection &IS) const override;75 void writeTo(uint8_t *Buf, ThunkSection &IS) const override;
59 void addSymbols(ThunkSection &IS) override;76 void addSymbols(ThunkSection &IS) override;
60 bool isCompatibleWith(uint32_t RelocType) const override;77 bool isCompatibleWith(RelType Type) const override;
61};78};
6279
63class ARMV7PILongThunk final : public Thunk {80class ARMV7PILongThunk final : public Thunk {
64public:81public:
65 ARMV7PILongThunk(const SymbolBody &Dest) : Thunk(Dest) {}82 ARMV7PILongThunk(Symbol &Dest) : Thunk(Dest) {}
6683
67 uint32_t size() const override { return 16; }84 uint32_t size() const override { return 16; }
68 void writeTo(uint8_t *Buf, ThunkSection &IS) const override;85 void writeTo(uint8_t *Buf, ThunkSection &IS) const override;
69 void addSymbols(ThunkSection &IS) override;86 void addSymbols(ThunkSection &IS) override;
70 bool isCompatibleWith(uint32_t RelocType) const override;87 bool isCompatibleWith(RelType Type) const override;
71};88};
7289
73class ThumbV7ABSLongThunk final : public Thunk {90class ThumbV7ABSLongThunk final : public Thunk {
74public:91public:
75 ThumbV7ABSLongThunk(const SymbolBody &Dest) : Thunk(Dest) { Alignment = 2; }92 ThumbV7ABSLongThunk(Symbol &Dest) : Thunk(Dest) { Alignment = 2; }
7693
77 uint32_t size() const override { return 10; }94 uint32_t size() const override { return 10; }
78 void writeTo(uint8_t *Buf, ThunkSection &IS) const override;95 void writeTo(uint8_t *Buf, ThunkSection &IS) const override;
79 void addSymbols(ThunkSection &IS) override;96 void addSymbols(ThunkSection &IS) override;
80 bool isCompatibleWith(uint32_t RelocType) const override;97 bool isCompatibleWith(RelType Type) const override;
81};98};
8299
83class ThumbV7PILongThunk final : public Thunk {100class ThumbV7PILongThunk final : public Thunk {
84public:101public:
85 ThumbV7PILongThunk(const SymbolBody &Dest) : Thunk(Dest) { Alignment = 2; }102 ThumbV7PILongThunk(Symbol &Dest) : Thunk(Dest) { Alignment = 2; }
86103
87 uint32_t size() const override { return 12; }104 uint32_t size() const override { return 12; }
88 void writeTo(uint8_t *Buf, ThunkSection &IS) const override;105 void writeTo(uint8_t *Buf, ThunkSection &IS) const override;
89 void addSymbols(ThunkSection &IS) override;106 void addSymbols(ThunkSection &IS) override;
90 bool isCompatibleWith(uint32_t RelocType) const override;107 bool isCompatibleWith(RelType Type) const override;
91};108};
92109
93// MIPS LA25 thunk110// MIPS LA25 thunk
94class MipsThunk final : public Thunk {111class MipsThunk final : public Thunk {
95public:112public:
96 MipsThunk(const SymbolBody &Dest) : Thunk(Dest) {}113 MipsThunk(Symbol &Dest) : Thunk(Dest) {}
97114
98 uint32_t size() const override { return 16; }115 uint32_t size() const override { return 16; }
99 void writeTo(uint8_t *Buf, ThunkSection &IS) const override;116 void writeTo(uint8_t *Buf, ThunkSection &IS) const override;
...@@ -101,10 +118,86 @@ public:...@@ -101,10 +118,86 @@ public:
101 InputSection *getTargetInputSection() const override;118 InputSection *getTargetInputSection() const override;
102};119};
103120
121// microMIPS R2-R5 LA25 thunk
122class MicroMipsThunk final : public Thunk {
123public:
124 MicroMipsThunk(Symbol &Dest) : Thunk(Dest) {}
125
126 uint32_t size() const override { return 14; }
127 void writeTo(uint8_t *Buf, ThunkSection &IS) const override;
128 void addSymbols(ThunkSection &IS) override;
129 InputSection *getTargetInputSection() const override;
130};
131
132// microMIPS R6 LA25 thunk
133class MicroMipsR6Thunk final : public Thunk {
134public:
135 MicroMipsR6Thunk(Symbol &Dest) : Thunk(Dest) {}
136
137 uint32_t size() const override { return 12; }
138 void writeTo(uint8_t *Buf, ThunkSection &IS) const override;
139 void addSymbols(ThunkSection &IS) override;
140 InputSection *getTargetInputSection() const override;
141};
142
104} // end anonymous namespace143} // end anonymous namespace
105144
145// AArch64 long range Thunks
146
147static uint64_t getAArch64ThunkDestVA(const Symbol &S) {
148 uint64_t V = S.isInPlt() ? S.getPltVA() : S.getVA();
149 return V;
150}
151
152void AArch64ABSLongThunk::writeTo(uint8_t *Buf, ThunkSection &IS) const {
153 const uint8_t Data[] = {
154 0x50, 0x00, 0x00, 0x58, // ldr x16, L0
155 0x00, 0x02, 0x1f, 0xd6, // br x16
156 0x00, 0x00, 0x00, 0x00, // L0: .xword S
157 0x00, 0x00, 0x00, 0x00,
158 };
159 uint64_t S = getAArch64ThunkDestVA(Destination);
160 memcpy(Buf, Data, sizeof(Data));
161 Target->relocateOne(Buf + 8, R_AARCH64_ABS64, S);
162}
163
164void AArch64ABSLongThunk::addSymbols(ThunkSection &IS) {
165 ThunkSym = addSyntheticLocal(
166 Saver.save("__AArch64AbsLongThunk_" + Destination.getName()), STT_FUNC,
167 Offset, size(), IS);
168 addSyntheticLocal("$x", STT_NOTYPE, Offset, 0, IS);
169 addSyntheticLocal("$d", STT_NOTYPE, Offset + 8, 0, IS);
170}
171
172// This Thunk has a maximum range of 4Gb, this is sufficient for all programs
173// using the small code model, including pc-relative ones. At time of writing
174// clang and gcc do not support the large code model for position independent
175// code so it is safe to use this for position independent thunks without
176// worrying about the destination being more than 4Gb away.
177void AArch64ADRPThunk::writeTo(uint8_t *Buf, ThunkSection &IS) const {
178 const uint8_t Data[] = {
179 0x10, 0x00, 0x00, 0x90, // adrp x16, Dest R_AARCH64_ADR_PREL_PG_HI21(Dest)
180 0x10, 0x02, 0x00, 0x91, // add x16, x16, R_AARCH64_ADD_ABS_LO12_NC(Dest)
181 0x00, 0x02, 0x1f, 0xd6, // br x16
182 };
183 uint64_t S = getAArch64ThunkDestVA(Destination);
184 uint64_t P = ThunkSym->getVA();
185 memcpy(Buf, Data, sizeof(Data));
186 Target->relocateOne(Buf, R_AARCH64_ADR_PREL_PG_HI21,
187 getAArch64Page(S) - getAArch64Page(P));
188 Target->relocateOne(Buf + 4, R_AARCH64_ADD_ABS_LO12_NC, S);
189}
190
191void AArch64ADRPThunk::addSymbols(ThunkSection &IS)
192{
193 ThunkSym = addSyntheticLocal(
194 Saver.save("__AArch64ADRPThunk_" + Destination.getName()), STT_FUNC,
195 Offset, size(), IS);
196 addSyntheticLocal("$x", STT_NOTYPE, Offset, 0, IS);
197}
198
106// ARM Target Thunks199// ARM Target Thunks
107static uint64_t getARMThunkDestVA(const SymbolBody &S) {200static uint64_t getARMThunkDestVA(const Symbol &S) {
108 uint64_t V = S.isInPlt() ? S.getPltVA() : S.getVA();201 uint64_t V = S.isInPlt() ? S.getPltVA() : S.getVA();
109 return SignExtend64<32>(V);202 return SignExtend64<32>(V);
110}203}
...@@ -124,13 +217,13 @@ void ARMV7ABSLongThunk::writeTo(uint8_t *Buf, ThunkSection &IS) const {...@@ -124,13 +217,13 @@ void ARMV7ABSLongThunk::writeTo(uint8_t *Buf, ThunkSection &IS) const {
124void ARMV7ABSLongThunk::addSymbols(ThunkSection &IS) {217void ARMV7ABSLongThunk::addSymbols(ThunkSection &IS) {
125 ThunkSym = addSyntheticLocal(218 ThunkSym = addSyntheticLocal(
126 Saver.save("__ARMv7ABSLongThunk_" + Destination.getName()), STT_FUNC,219 Saver.save("__ARMv7ABSLongThunk_" + Destination.getName()), STT_FUNC,
127 Offset, size(), &IS);220 Offset, size(), IS);
128 addSyntheticLocal("$a", STT_NOTYPE, Offset, 0, &IS);221 addSyntheticLocal("$a", STT_NOTYPE, Offset, 0, IS);
129}222}
130223
131bool ARMV7ABSLongThunk::isCompatibleWith(uint32_t RelocType) const {224bool ARMV7ABSLongThunk::isCompatibleWith(RelType Type) const {
132 // Thumb branch relocations can't use BLX225 // Thumb branch relocations can't use BLX
133 return RelocType != R_ARM_THM_JUMP19 && RelocType != R_ARM_THM_JUMP24;226 return Type != R_ARM_THM_JUMP19 && Type != R_ARM_THM_JUMP24;
134}227}
135228
136void ThumbV7ABSLongThunk::writeTo(uint8_t *Buf, ThunkSection &IS) const {229void ThumbV7ABSLongThunk::writeTo(uint8_t *Buf, ThunkSection &IS) const {
...@@ -148,67 +241,67 @@ void ThumbV7ABSLongThunk::writeTo(uint8_t *Buf, ThunkSection &IS) const {...@@ -148,67 +241,67 @@ void ThumbV7ABSLongThunk::writeTo(uint8_t *Buf, ThunkSection &IS) const {
148void ThumbV7ABSLongThunk::addSymbols(ThunkSection &IS) {241void ThumbV7ABSLongThunk::addSymbols(ThunkSection &IS) {
149 ThunkSym = addSyntheticLocal(242 ThunkSym = addSyntheticLocal(
150 Saver.save("__Thumbv7ABSLongThunk_" + Destination.getName()), STT_FUNC,243 Saver.save("__Thumbv7ABSLongThunk_" + Destination.getName()), STT_FUNC,
151 Offset | 0x1, size(), &IS);244 Offset | 0x1, size(), IS);
152 addSyntheticLocal("$t", STT_NOTYPE, Offset, 0, &IS);245 addSyntheticLocal("$t", STT_NOTYPE, Offset, 0, IS);
153}246}
154247
155bool ThumbV7ABSLongThunk::isCompatibleWith(uint32_t RelocType) const {248bool ThumbV7ABSLongThunk::isCompatibleWith(RelType Type) const {
156 // ARM branch relocations can't use BLX249 // ARM branch relocations can't use BLX
157 return RelocType != R_ARM_JUMP24 && RelocType != R_ARM_PC24 &&250 return Type != R_ARM_JUMP24 && Type != R_ARM_PC24 && Type != R_ARM_PLT32;
158 RelocType != R_ARM_PLT32;
159}251}
160252
161void ARMV7PILongThunk::writeTo(uint8_t *Buf, ThunkSection &IS) const {253void ARMV7PILongThunk::writeTo(uint8_t *Buf, ThunkSection &IS) const {
162 const uint8_t Data[] = {254 const uint8_t Data[] = {
163 0xf0, 0xcf, 0x0f, 0xe3, // P: movw ip,:lower16:S - (P + (L1-P) +8)255 0xf0, 0xcf, 0x0f, 0xe3, // P: movw ip,:lower16:S - (P + (L1-P) + 8)
164 0x00, 0xc0, 0x40, 0xe3, // movt ip,:upper16:S - (P + (L1-P+4) +8)256 0x00, 0xc0, 0x40, 0xe3, // movt ip,:upper16:S - (P + (L1-P) + 8)
165 0x0f, 0xc0, 0x8c, 0xe0, // L1: add ip, ip, pc257 0x0f, 0xc0, 0x8c, 0xe0, // L1: add ip, ip, pc
166 0x1c, 0xff, 0x2f, 0xe1, // bx r12258 0x1c, 0xff, 0x2f, 0xe1, // bx r12
167 };259 };
168 uint64_t S = getARMThunkDestVA(Destination);260 uint64_t S = getARMThunkDestVA(Destination);
169 uint64_t P = ThunkSym->getVA();261 uint64_t P = ThunkSym->getVA();
262 uint64_t Offset = S - P - 16;
170 memcpy(Buf, Data, sizeof(Data));263 memcpy(Buf, Data, sizeof(Data));
171 Target->relocateOne(Buf, R_ARM_MOVW_PREL_NC, S - P - 16);264 Target->relocateOne(Buf, R_ARM_MOVW_PREL_NC, Offset);
172 Target->relocateOne(Buf + 4, R_ARM_MOVT_PREL, S - P - 12);265 Target->relocateOne(Buf + 4, R_ARM_MOVT_PREL, Offset);
173}266}
174267
175void ARMV7PILongThunk::addSymbols(ThunkSection &IS) {268void ARMV7PILongThunk::addSymbols(ThunkSection &IS) {
176 ThunkSym = addSyntheticLocal(269 ThunkSym = addSyntheticLocal(
177 Saver.save("__ARMV7PILongThunk_" + Destination.getName()), STT_FUNC,270 Saver.save("__ARMV7PILongThunk_" + Destination.getName()), STT_FUNC,
178 Offset, size(), &IS);271 Offset, size(), IS);
179 addSyntheticLocal("$a", STT_NOTYPE, Offset, 0, &IS);272 addSyntheticLocal("$a", STT_NOTYPE, Offset, 0, IS);
180}273}
181274
182bool ARMV7PILongThunk::isCompatibleWith(uint32_t RelocType) const {275bool ARMV7PILongThunk::isCompatibleWith(RelType Type) const {
183 // Thumb branch relocations can't use BLX276 // Thumb branch relocations can't use BLX
184 return RelocType != R_ARM_THM_JUMP19 && RelocType != R_ARM_THM_JUMP24;277 return Type != R_ARM_THM_JUMP19 && Type != R_ARM_THM_JUMP24;
185}278}
186279
187void ThumbV7PILongThunk::writeTo(uint8_t *Buf, ThunkSection &IS) const {280void ThumbV7PILongThunk::writeTo(uint8_t *Buf, ThunkSection &IS) const {
188 const uint8_t Data[] = {281 const uint8_t Data[] = {
189 0x4f, 0xf6, 0xf4, 0x7c, // P: movw ip,:lower16:S - (P + (L1-P) + 4)282 0x4f, 0xf6, 0xf4, 0x7c, // P: movw ip,:lower16:S - (P + (L1-P) + 4)
190 0xc0, 0xf2, 0x00, 0x0c, // movt ip,:upper16:S - (P + (L1-P+4) + 4)283 0xc0, 0xf2, 0x00, 0x0c, // movt ip,:upper16:S - (P + (L1-P) + 4)
191 0xfc, 0x44, // L1: add r12, pc284 0xfc, 0x44, // L1: add r12, pc
192 0x60, 0x47, // bx r12285 0x60, 0x47, // bx r12
193 };286 };
194 uint64_t S = getARMThunkDestVA(Destination);287 uint64_t S = getARMThunkDestVA(Destination);
195 uint64_t P = ThunkSym->getVA() & ~0x1;288 uint64_t P = ThunkSym->getVA() & ~0x1;
289 uint64_t Offset = S - P - 12;
196 memcpy(Buf, Data, sizeof(Data));290 memcpy(Buf, Data, sizeof(Data));
197 Target->relocateOne(Buf, R_ARM_THM_MOVW_PREL_NC, S - P - 12);291 Target->relocateOne(Buf, R_ARM_THM_MOVW_PREL_NC, Offset);
198 Target->relocateOne(Buf + 4, R_ARM_THM_MOVT_PREL, S - P - 8);292 Target->relocateOne(Buf + 4, R_ARM_THM_MOVT_PREL, Offset);
199}293}
200294
201void ThumbV7PILongThunk::addSymbols(ThunkSection &IS) {295void ThumbV7PILongThunk::addSymbols(ThunkSection &IS) {
202 ThunkSym = addSyntheticLocal(296 ThunkSym = addSyntheticLocal(
203 Saver.save("__ThumbV7PILongThunk_" + Destination.getName()), STT_FUNC,297 Saver.save("__ThumbV7PILongThunk_" + Destination.getName()), STT_FUNC,
204 Offset | 0x1, size(), &IS);298 Offset | 0x1, size(), IS);
205 addSyntheticLocal("$t", STT_NOTYPE, Offset, 0, &IS);299 addSyntheticLocal("$t", STT_NOTYPE, Offset, 0, IS);
206}300}
207301
208bool ThumbV7PILongThunk::isCompatibleWith(uint32_t RelocType) const {302bool ThumbV7PILongThunk::isCompatibleWith(RelType Type) const {
209 // ARM branch relocations can't use BLX303 // ARM branch relocations can't use BLX
210 return RelocType != R_ARM_JUMP24 && RelocType != R_ARM_PC24 &&304 return Type != R_ARM_JUMP24 && Type != R_ARM_PC24 && Type != R_ARM_PLT32;
211 RelocType != R_ARM_PLT32;
212}305}
213306
214// Write MIPS LA25 thunk code to call PIC function from the non-PIC one.307// Write MIPS LA25 thunk code to call PIC function from the non-PIC one.
...@@ -225,20 +318,78 @@ void MipsThunk::writeTo(uint8_t *Buf, ThunkSection &) const {...@@ -225,20 +318,78 @@ void MipsThunk::writeTo(uint8_t *Buf, ThunkSection &) const {
225void MipsThunk::addSymbols(ThunkSection &IS) {318void MipsThunk::addSymbols(ThunkSection &IS) {
226 ThunkSym =319 ThunkSym =
227 addSyntheticLocal(Saver.save("__LA25Thunk_" + Destination.getName()),320 addSyntheticLocal(Saver.save("__LA25Thunk_" + Destination.getName()),
228 STT_FUNC, Offset, size(), &IS);321 STT_FUNC, Offset, size(), IS);
229}322}
230323
231InputSection *MipsThunk::getTargetInputSection() const {324InputSection *MipsThunk::getTargetInputSection() const {
232 auto *DR = dyn_cast<DefinedRegular>(&Destination);325 auto &DR = cast<Defined>(Destination);
233 return dyn_cast<InputSection>(DR->Section);326 return dyn_cast<InputSection>(DR.Section);
234}327}
235328
236Thunk::Thunk(const SymbolBody &D) : Destination(D), Offset(0) {}329// Write microMIPS R2-R5 LA25 thunk code
330// to call PIC function from the non-PIC one.
331void MicroMipsThunk::writeTo(uint8_t *Buf, ThunkSection &) const {
332 uint64_t S = Destination.getVA() | 1;
333 write16(Buf, 0x41b9, Config->Endianness); // lui $25, %hi(func)
334 write16(Buf + 4, 0xd400, Config->Endianness); // j func
335 write16(Buf + 8, 0x3339, Config->Endianness); // addiu $25, $25, %lo(func)
336 write16(Buf + 12, 0x0c00, Config->Endianness); // nop
337 Target->relocateOne(Buf, R_MICROMIPS_HI16, S);
338 Target->relocateOne(Buf + 4, R_MICROMIPS_26_S1, S);
339 Target->relocateOne(Buf + 8, R_MICROMIPS_LO16, S);
340}
341
342void MicroMipsThunk::addSymbols(ThunkSection &IS) {
343 ThunkSym =
344 addSyntheticLocal(Saver.save("__microLA25Thunk_" + Destination.getName()),
345 STT_FUNC, Offset, size(), IS);
346 ThunkSym->StOther |= STO_MIPS_MICROMIPS;
347}
348
349InputSection *MicroMipsThunk::getTargetInputSection() const {
350 auto &DR = cast<Defined>(Destination);
351 return dyn_cast<InputSection>(DR.Section);
352}
353
354// Write microMIPS R6 LA25 thunk code
355// to call PIC function from the non-PIC one.
356void MicroMipsR6Thunk::writeTo(uint8_t *Buf, ThunkSection &) const {
357 uint64_t S = Destination.getVA() | 1;
358 uint64_t P = ThunkSym->getVA();
359 write16(Buf, 0x1320, Config->Endianness); // lui $25, %hi(func)
360 write16(Buf + 4, 0x3339, Config->Endianness); // addiu $25, $25, %lo(func)
361 write16(Buf + 8, 0x9400, Config->Endianness); // bc func
362 Target->relocateOne(Buf, R_MICROMIPS_HI16, S);
363 Target->relocateOne(Buf + 4, R_MICROMIPS_LO16, S);
364 Target->relocateOne(Buf + 8, R_MICROMIPS_PC26_S1, S - P - 12);
365}
366
367void MicroMipsR6Thunk::addSymbols(ThunkSection &IS) {
368 ThunkSym =
369 addSyntheticLocal(Saver.save("__microLA25Thunk_" + Destination.getName()),
370 STT_FUNC, Offset, size(), IS);
371 ThunkSym->StOther |= STO_MIPS_MICROMIPS;
372}
373
374InputSection *MicroMipsR6Thunk::getTargetInputSection() const {
375 auto &DR = cast<Defined>(Destination);
376 return dyn_cast<InputSection>(DR.Section);
377}
378
379Thunk::Thunk(Symbol &D) : Destination(D), Offset(0) {}
237380
238Thunk::~Thunk() = default;381Thunk::~Thunk() = default;
239382
383static Thunk *addThunkAArch64(RelType Type, Symbol &S) {
384 if (Type != R_AARCH64_CALL26 && Type != R_AARCH64_JUMP26)
385 fatal("unrecognized relocation type");
386 if (Config->Pic)
387 return make<AArch64ADRPThunk>(S);
388 return make<AArch64ABSLongThunk>(S);
389}
390
240// Creates a thunk for Thumb-ARM interworking.391// Creates a thunk for Thumb-ARM interworking.
241static Thunk *addThunkArm(uint32_t Reloc, SymbolBody &S) {392static Thunk *addThunkArm(RelType Reloc, Symbol &S) {
242 // ARM relocations need ARM to Thumb interworking Thunks.393 // ARM relocations need ARM to Thumb interworking Thunks.
243 // Thumb relocations need Thumb to ARM relocations.394 // Thumb relocations need Thumb to ARM relocations.
244 // Use position independent Thunks if we require position independent code.395 // Use position independent Thunks if we require position independent code.
...@@ -246,11 +397,13 @@ static Thunk *addThunkArm(uint32_t Reloc, SymbolBody &S) {...@@ -246,11 +397,13 @@ static Thunk *addThunkArm(uint32_t Reloc, SymbolBody &S) {
246 case R_ARM_PC24:397 case R_ARM_PC24:
247 case R_ARM_PLT32:398 case R_ARM_PLT32:
248 case R_ARM_JUMP24:399 case R_ARM_JUMP24:
400 case R_ARM_CALL:
249 if (Config->Pic)401 if (Config->Pic)
250 return make<ARMV7PILongThunk>(S);402 return make<ARMV7PILongThunk>(S);
251 return make<ARMV7ABSLongThunk>(S);403 return make<ARMV7ABSLongThunk>(S);
252 case R_ARM_THM_JUMP19:404 case R_ARM_THM_JUMP19:
253 case R_ARM_THM_JUMP24:405 case R_ARM_THM_JUMP24:
406 case R_ARM_THM_CALL:
254 if (Config->Pic)407 if (Config->Pic)
255 return make<ThumbV7PILongThunk>(S);408 return make<ThumbV7PILongThunk>(S);
256 return make<ThumbV7ABSLongThunk>(S);409 return make<ThumbV7ABSLongThunk>(S);
...@@ -258,13 +411,21 @@ static Thunk *addThunkArm(uint32_t Reloc, SymbolBody &S) {...@@ -258,13 +411,21 @@ static Thunk *addThunkArm(uint32_t Reloc, SymbolBody &S) {
258 fatal("unrecognized relocation type");411 fatal("unrecognized relocation type");
259}412}
260413
261static Thunk *addThunkMips(SymbolBody &S) { return make<MipsThunk>(S); }414static Thunk *addThunkMips(RelType Type, Symbol &S) {
415 if ((S.StOther & STO_MIPS_MICROMIPS) && isMipsR6())
416 return make<MicroMipsR6Thunk>(S);
417 if (S.StOther & STO_MIPS_MICROMIPS)
418 return make<MicroMipsThunk>(S);
419 return make<MipsThunk>(S);
420}
262421
263Thunk *addThunk(uint32_t RelocType, SymbolBody &S) {422Thunk *addThunk(RelType Type, Symbol &S) {
264 if (Config->EMachine == EM_ARM)423 if (Config->EMachine == EM_AARCH64)
265 return addThunkArm(RelocType, S);424 return addThunkAArch64(Type, S);
425 else if (Config->EMachine == EM_ARM)
426 return addThunkArm(Type, S);
266 else if (Config->EMachine == EM_MIPS)427 else if (Config->EMachine == EM_MIPS)
267 return addThunkMips(S);428 return addThunkMips(Type, S);
268 llvm_unreachable("add Thunk only supported for ARM and Mips");429 llvm_unreachable("add Thunk only supported for ARM and Mips");
269 return nullptr;430 return nullptr;
270}431}
deps/lld/ELF/Thunks.h+9-9
...@@ -14,7 +14,7 @@...@@ -14,7 +14,7 @@
1414
15namespace lld {15namespace lld {
16namespace elf {16namespace elf {
17class SymbolBody;17class Symbol;
18class ThunkSection;18class ThunkSection;
19// Class to describe an instance of a Thunk.19// Class to describe an instance of a Thunk.
20// A Thunk is a code-sequence inserted by the linker in between a caller and20// A Thunk is a code-sequence inserted by the linker in between a caller and
...@@ -23,11 +23,11 @@ class ThunkSection;...@@ -23,11 +23,11 @@ class ThunkSection;
23// include transferring control from non-pi to pi and changing state on23// include transferring control from non-pi to pi and changing state on
24// targets like ARM.24// targets like ARM.
25//25//
26// Thunks can be created for DefinedRegular, Shared and Undefined Symbols.26// Thunks can be created for Defined, Shared and Undefined Symbols.
27// Thunks are assigned to synthetic ThunkSections27// Thunks are assigned to synthetic ThunkSections
28class Thunk {28class Thunk {
29public:29public:
30 Thunk(const SymbolBody &Destination);30 Thunk(Symbol &Destination);
31 virtual ~Thunk();31 virtual ~Thunk();
3232
33 virtual uint32_t size() const { return 0; }33 virtual uint32_t size() const { return 0; }
...@@ -41,21 +41,21 @@ public:...@@ -41,21 +41,21 @@ public:
41 // a branch and fall through to the first Symbol in the Target.41 // a branch and fall through to the first Symbol in the Target.
42 virtual InputSection *getTargetInputSection() const { return nullptr; }42 virtual InputSection *getTargetInputSection() const { return nullptr; }
4343
44 // To reuse a Thunk the caller as identified by the RelocType must be44 // To reuse a Thunk the caller as identified by the Type must be
45 // compatible with it.45 // compatible with it.
46 virtual bool isCompatibleWith(uint32_t RelocType) const { return true; }46 virtual bool isCompatibleWith(RelType Type) const { return true; }
4747
48 // The alignment requirement for this Thunk, defaults to the size of the48 // The alignment requirement for this Thunk, defaults to the size of the
49 // typical code section alignment.49 // typical code section alignment.
50 const SymbolBody &Destination;50 Symbol &Destination;
51 SymbolBody *ThunkSym;51 Symbol *ThunkSym;
52 uint64_t Offset;52 uint64_t Offset = 0;
53 uint32_t Alignment = 4;53 uint32_t Alignment = 4;
54};54};
5555
56// For a Relocation to symbol S create a Thunk to be added to a synthetic56// For a Relocation to symbol S create a Thunk to be added to a synthetic
57// ThunkSection. At present there are implementations for ARM and Mips Thunks.57// ThunkSection. At present there are implementations for ARM and Mips Thunks.
58Thunk *addThunk(uint32_t RelocType, SymbolBody &S);58Thunk *addThunk(RelType Type, Symbol &S);
5959
60} // namespace elf60} // namespace elf
61} // namespace lld61} // namespace lld
deps/lld/ELF/Writer.cpp+906-748
...@@ -8,22 +8,22 @@...@@ -8,22 +8,22 @@
8//===----------------------------------------------------------------------===//8//===----------------------------------------------------------------------===//
99
10#include "Writer.h"10#include "Writer.h"
11#include "AArch64ErrataFix.h"
11#include "Config.h"12#include "Config.h"
12#include "Filesystem.h"13#include "Filesystem.h"
13#include "LinkerScript.h"14#include "LinkerScript.h"
14#include "MapFile.h"15#include "MapFile.h"
15#include "Memory.h"
16#include "OutputSections.h"16#include "OutputSections.h"
17#include "Relocations.h"17#include "Relocations.h"
18#include "Strings.h"18#include "Strings.h"
19#include "SymbolTable.h"19#include "SymbolTable.h"
20#include "Symbols.h"
20#include "SyntheticSections.h"21#include "SyntheticSections.h"
21#include "Target.h"22#include "Target.h"
22#include "Threads.h"23#include "lld/Common/Memory.h"
24#include "lld/Common/Threads.h"
23#include "llvm/ADT/StringMap.h"25#include "llvm/ADT/StringMap.h"
24#include "llvm/ADT/StringSwitch.h"26#include "llvm/ADT/StringSwitch.h"
25#include "llvm/Support/FileOutputBuffer.h"
26#include "llvm/Support/raw_ostream.h"
27#include <climits>27#include <climits>
2828
29using namespace llvm;29using namespace llvm;
...@@ -39,6 +39,7 @@ namespace {...@@ -39,6 +39,7 @@ namespace {
39// The writer writes a SymbolTable result to a file.39// The writer writes a SymbolTable result to a file.
40template <class ELFT> class Writer {40template <class ELFT> class Writer {
41public:41public:
42 Writer() : Buffer(errorHandler().OutputBuffer) {}
42 typedef typename ELFT::Shdr Elf_Shdr;43 typedef typename ELFT::Shdr Elf_Shdr;
43 typedef typename ELFT::Ehdr Elf_Ehdr;44 typedef typename ELFT::Ehdr Elf_Ehdr;
44 typedef typename ELFT::Phdr Elf_Phdr;45 typedef typename ELFT::Phdr Elf_Phdr;
...@@ -46,43 +47,37 @@ public:...@@ -46,43 +47,37 @@ public:
46 void run();47 void run();
4748
48private:49private:
49 void clearOutputSections();
50 void createSyntheticSections();
51 void copyLocalSymbols();50 void copyLocalSymbols();
52 void addSectionSymbols();51 void addSectionSymbols();
53 void addReservedSymbols();
54 void createSections();
55 void forEachRelSec(std::function<void(InputSectionBase &)> Fn);52 void forEachRelSec(std::function<void(InputSectionBase &)> Fn);
56 void sortSections();53 void sortSections();
54 void resolveShfLinkOrder();
55 void sortInputSections();
57 void finalizeSections();56 void finalizeSections();
58 void addPredefinedSections();57 void setReservedSymbolSections();
5958
60 std::vector<PhdrEntry> createPhdrs();59 std::vector<PhdrEntry *> createPhdrs();
61 void removeEmptyPTLoad();60 void removeEmptyPTLoad();
62 void addPtArmExid(std::vector<PhdrEntry> &Phdrs);61 void addPtArmExid(std::vector<PhdrEntry *> &Phdrs);
63 void assignFileOffsets();62 void assignFileOffsets();
64 void assignFileOffsetsBinary();63 void assignFileOffsetsBinary();
65 void setPhdrs();64 void setPhdrs();
66 void fixSectionAlignments();65 void fixSectionAlignments();
67 void fixPredefinedSymbols();
68 void openFile();66 void openFile();
67 void writeTrapInstr();
69 void writeHeader();68 void writeHeader();
70 void writeSections();69 void writeSections();
71 void writeSectionsBinary();70 void writeSectionsBinary();
72 void writeBuildId();71 void writeBuildId();
7372
74 std::unique_ptr<FileOutputBuffer> Buffer;73 std::unique_ptr<FileOutputBuffer> &Buffer;
75
76 OutputSectionFactory Factory;
7774
78 void addRelIpltSymbols();75 void addRelIpltSymbols();
79 void addStartEndSymbols();76 void addStartEndSymbols();
80 void addStartStopSymbols(OutputSection *Sec);77 void addStartStopSymbols(OutputSection *Sec);
81 uint64_t getEntryAddr();78 uint64_t getEntryAddr();
82 OutputSection *findSectionInScript(StringRef Name);
83 OutputSectionCommand *findSectionCommand(StringRef Name);
8479
85 std::vector<PhdrEntry> Phdrs;80 std::vector<PhdrEntry *> Phdrs;
8681
87 uint64_t FileSize;82 uint64_t FileSize;
88 uint64_t SectionHeaderOff;83 uint64_t SectionHeaderOff;
...@@ -91,49 +86,60 @@ private:...@@ -91,49 +86,60 @@ private:
91};86};
92} // anonymous namespace87} // anonymous namespace
9388
94StringRef elf::getOutputSectionName(StringRef Name) {89StringRef elf::getOutputSectionName(InputSectionBase *S) {
95 // ".zdebug_" is a prefix for ZLIB-compressed sections.90 // ".zdebug_" is a prefix for ZLIB-compressed sections.
96 // Because we decompressed input sections, we want to remove 'z'.91 // Because we decompressed input sections, we want to remove 'z'.
97 if (Name.startswith(".zdebug_"))92 if (S->Name.startswith(".zdebug_"))
98 return Saver.save("." + Name.substr(2));93 return Saver.save("." + S->Name.substr(2));
9994
100 if (Config->Relocatable)95 if (Config->Relocatable)
101 return Name;96 return S->Name;
97
98 // This is for --emit-relocs. If .text.foo is emitted as .text.bar, we want
99 // to emit .rela.text.foo as .rela.text.bar for consistency (this is not
100 // technically required, but not doing it is odd). This code guarantees that.
101 if ((S->Type == SHT_REL || S->Type == SHT_RELA) &&
102 !isa<SyntheticSection>(S)) {
103 OutputSection *Out =
104 cast<InputSection>(S)->getRelocatedSection()->getOutputSection();
105 if (S->Type == SHT_RELA)
106 return Saver.save(".rela" + Out->Name);
107 return Saver.save(".rel" + Out->Name);
108 }
102109
103 for (StringRef V :110 for (StringRef V :
104 {".text.", ".rodata.", ".data.rel.ro.", ".data.", ".bss.rel.ro.",111 {".text.", ".rodata.", ".data.rel.ro.", ".data.", ".bss.rel.ro.",
105 ".bss.", ".init_array.", ".fini_array.", ".ctors.", ".dtors.", ".tbss.",112 ".bss.", ".init_array.", ".fini_array.", ".ctors.", ".dtors.", ".tbss.",
106 ".gcc_except_table.", ".tdata.", ".ARM.exidx.", ".ARM.extab."}) {113 ".gcc_except_table.", ".tdata.", ".ARM.exidx.", ".ARM.extab."}) {
107 StringRef Prefix = V.drop_back();114 StringRef Prefix = V.drop_back();
108 if (Name.startswith(V) || Name == Prefix)115 if (S->Name.startswith(V) || S->Name == Prefix)
109 return Prefix;116 return Prefix;
110 }117 }
111118
112 // CommonSection is identified as "COMMON" in linker scripts.119 // CommonSection is identified as "COMMON" in linker scripts.
113 // By default, it should go to .bss section.120 // By default, it should go to .bss section.
114 if (Name == "COMMON")121 if (S->Name == "COMMON")
115 return ".bss";122 return ".bss";
116123
117 return Name;124 return S->Name;
118}125}
119126
120template <class ELFT> static bool needsInterpSection() {127static bool needsInterpSection() {
121 return !Symtab<ELFT>::X->getSharedFiles().empty() &&128 return !SharedFiles.empty() && !Config->DynamicLinker.empty() &&
122 !Config->DynamicLinker.empty() && !Script->ignoreInterpSection();129 Script->needsInterpSection();
123}130}
124131
125template <class ELFT> void elf::writeResult() { Writer<ELFT>().run(); }132template <class ELFT> void elf::writeResult() { Writer<ELFT>().run(); }
126133
127template <class ELFT> void Writer<ELFT>::removeEmptyPTLoad() {134template <class ELFT> void Writer<ELFT>::removeEmptyPTLoad() {
128 auto I = std::remove_if(Phdrs.begin(), Phdrs.end(), [&](const PhdrEntry &P) {135 llvm::erase_if(Phdrs, [&](const PhdrEntry *P) {
129 if (P.p_type != PT_LOAD)136 if (P->p_type != PT_LOAD)
130 return false;137 return false;
131 if (!P.First)138 if (!P->FirstSec)
132 return true;139 return true;
133 uint64_t Size = P.Last->Addr + P.Last->Size - P.First->Addr;140 uint64_t Size = P->LastSec->Addr + P->LastSec->Size - P->FirstSec->Addr;
134 return Size == 0;141 return Size == 0;
135 });142 });
136 Phdrs.erase(I, Phdrs.end());
137}143}
138144
139template <class ELFT> static void combineEhFrameSections() {145template <class ELFT> static void combineEhFrameSections() {
...@@ -142,7 +148,7 @@ template <class ELFT> static void combineEhFrameSections() {...@@ -142,7 +148,7 @@ template <class ELFT> static void combineEhFrameSections() {
142 if (!ES || !ES->Live)148 if (!ES || !ES->Live)
143 continue;149 continue;
144150
145 In<ELFT>::EhFrame->addSection(ES);151 InX::EhFrame->addSection<ELFT>(ES);
146 S = nullptr;152 S = nullptr;
147 }153 }
148154
...@@ -150,130 +156,87 @@ template <class ELFT> static void combineEhFrameSections() {...@@ -150,130 +156,87 @@ template <class ELFT> static void combineEhFrameSections() {
150 V.erase(std::remove(V.begin(), V.end(), nullptr), V.end());156 V.erase(std::remove(V.begin(), V.end(), nullptr), V.end());
151}157}
152158
153template <class ELFT> void Writer<ELFT>::clearOutputSections() {159static Defined *addOptionalRegular(StringRef Name, SectionBase *Sec,
154 // Clear the OutputSections to make sure it is not used anymore. Any160 uint64_t Val, uint8_t StOther = STV_HIDDEN,
155 // code from this point on should be using the linker script161 uint8_t Binding = STB_GLOBAL) {
156 // commands.162 Symbol *S = Symtab->find(Name);
157 for (OutputSection *Sec : OutputSections)163 if (!S || S->isDefined())
158 Sec->Sections.clear();164 return nullptr;
159 OutputSections.clear();165 Symbol *Sym = Symtab->addRegular(Name, StOther, STT_NOTYPE, Val,
166 /*Size=*/0, Binding, Sec,
167 /*File=*/nullptr);
168 return cast<Defined>(Sym);
160}169}
161170
162// The main function of the writer.171// The linker is expected to define some symbols depending on
163template <class ELFT> void Writer<ELFT>::run() {172// the linking result. This function defines such symbols.
164 // Create linker-synthesized sections such as .got or .plt.173void elf::addReservedSymbols() {
165 // Such sections are of type input section.174 if (Config->EMachine == EM_MIPS) {
166 createSyntheticSections();175 // Define _gp for MIPS. st_value of _gp symbol will be updated by Writer
167176 // so that it points to an absolute address which by default is relative
168 if (!Config->Relocatable)177 // to GOT. Default offset is 0x7ff0.
169 combineEhFrameSections<ELFT>();178 // See "Global Data Symbols" in Chapter 6 in the following document:
170179 // ftp://www.linux-mips.org/pub/linux/mips/doc/ABI/mipsabi.pdf
171 // We need to create some reserved symbols such as _end. Create them.180 ElfSym::MipsGp = Symtab->addAbsolute("_gp", STV_HIDDEN, STB_GLOBAL);
172 if (!Config->Relocatable)
173 addReservedSymbols();
174
175 // Create output sections.
176 if (Script->Opt.HasSections) {
177 // If linker script contains SECTIONS commands, let it create sections.
178 Script->processCommands(Factory);
179
180 // Linker scripts may have left some input sections unassigned.
181 // Assign such sections using the default rule.
182 Script->addOrphanSections(Factory);
183 } else {
184 // If linker script does not contain SECTIONS commands, create
185 // output sections by default rules. We still need to give the
186 // linker script a chance to run, because it might contain
187 // non-SECTIONS commands such as ASSERT.
188 Script->processCommands(Factory);
189 createSections();
190 }
191 clearOutputSections();
192
193 if (Config->Discard != DiscardPolicy::All)
194 copyLocalSymbols();
195
196 if (Config->CopyRelocs)
197 addSectionSymbols();
198
199 // Now that we have a complete set of output sections. This function
200 // completes section contents. For example, we need to add strings
201 // to the string table, and add entries to .got and .plt.
202 // finalizeSections does that.
203 finalizeSections();
204 if (ErrorCount)
205 return;
206
207 if (!Script->Opt.HasSections && !Config->Relocatable)
208 fixSectionAlignments();
209
210 // If -compressed-debug-sections is specified, we need to compress
211 // .debug_* sections. Do it right now because it changes the size of
212 // output sections.
213 parallelForEach(
214 OutputSectionCommands.begin(), OutputSectionCommands.end(),
215 [](OutputSectionCommand *Cmd) { Cmd->maybeCompress<ELFT>(); });
216
217 Script->assignAddresses();
218 Script->allocateHeaders(Phdrs);
219
220 // Remove empty PT_LOAD to avoid causing the dynamic linker to try to mmap a
221 // 0 sized region. This has to be done late since only after assignAddresses
222 // we know the size of the sections.
223 removeEmptyPTLoad();
224
225 if (!Config->OFormatBinary)
226 assignFileOffsets();
227 else
228 assignFileOffsetsBinary();
229181
230 setPhdrs();182 // On MIPS O32 ABI, _gp_disp is a magic symbol designates offset between
183 // start of function and 'gp' pointer into GOT.
184 if (Symtab->find("_gp_disp"))
185 ElfSym::MipsGpDisp =
186 Symtab->addAbsolute("_gp_disp", STV_HIDDEN, STB_GLOBAL);
231187
232 if (Config->Relocatable) {188 // The __gnu_local_gp is a magic symbol equal to the current value of 'gp'
233 for (OutputSectionCommand *Cmd : OutputSectionCommands)189 // pointer. This symbol is used in the code generated by .cpload pseudo-op
234 Cmd->Sec->Addr = 0;190 // in case of using -mno-shared option.
235 } else {191 // https://sourceware.org/ml/binutils/2004-12/msg00094.html
236 fixPredefinedSymbols();192 if (Symtab->find("__gnu_local_gp"))
193 ElfSym::MipsLocalGp =
194 Symtab->addAbsolute("__gnu_local_gp", STV_HIDDEN, STB_GLOBAL);
237 }195 }
238196
239 // It does not make sense try to open the file if we have error already.197 ElfSym::GlobalOffsetTable = addOptionalRegular(
240 if (ErrorCount)198 "_GLOBAL_OFFSET_TABLE_", Out::ElfHeader, Target->GotBaseSymOff);
241 return;
242 // Write the result down to a file.
243 openFile();
244 if (ErrorCount)
245 return;
246199
247 if (!Config->OFormatBinary) {200 // __ehdr_start is the location of ELF file headers. Note that we define
248 writeHeader();201 // this symbol unconditionally even when using a linker script, which
249 writeSections();202 // differs from the behavior implemented by GNU linker which only define
250 } else {203 // this symbol if ELF headers are in the memory mapped segment.
251 writeSectionsBinary();204 // __executable_start is not documented, but the expectation of at
252 }205 // least the android libc is that it points to the elf header too.
206 // __dso_handle symbol is passed to cxa_finalize as a marker to identify
207 // each DSO. The address of the symbol doesn't matter as long as they are
208 // different in different DSOs, so we chose the start address of the DSO.
209 for (const char *Name :
210 {"__ehdr_start", "__executable_start", "__dso_handle"})
211 addOptionalRegular(Name, Out::ElfHeader, 0, STV_HIDDEN);
253212
254 // Backfill .note.gnu.build-id section content. This is done at last213 // If linker script do layout we do not need to create any standart symbols.
255 // because the content is usually a hash value of the entire output file.214 if (Script->HasSectionsCommand)
256 writeBuildId();
257 if (ErrorCount)
258 return;215 return;
259216
260 // Handle -Map option.217 auto Add = [](StringRef S, int64_t Pos) {
261 writeMapFile<ELFT>(OutputSectionCommands);218 return addOptionalRegular(S, Out::ElfHeader, Pos, STV_DEFAULT);
262 if (ErrorCount)219 };
263 return;
264220
265 if (auto EC = Buffer->commit())221 ElfSym::Bss = Add("__bss_start", 0);
266 error("failed to write to the output file: " + EC.message());222 ElfSym::End1 = Add("end", -1);
223 ElfSym::End2 = Add("_end", -1);
224 ElfSym::Etext1 = Add("etext", -1);
225 ElfSym::Etext2 = Add("_etext", -1);
226 ElfSym::Edata1 = Add("edata", -1);
227 ElfSym::Edata2 = Add("_edata", -1);
228}
267229
268 // Flush the output streams and exit immediately. A full shutdown230static OutputSection *findSection(StringRef Name) {
269 // is a good test that we are keeping track of all allocated memory,231 for (BaseCommand *Base : Script->SectionCommands)
270 // but actually freeing it is a waste of time in a regular linker run.232 if (auto *Sec = dyn_cast<OutputSection>(Base))
271 if (Config->ExitEarly)233 if (Sec->Name == Name)
272 exitLld(0);234 return Sec;
235 return nullptr;
273}236}
274237
275// Initialize Out members.238// Initialize Out members.
276template <class ELFT> void Writer<ELFT>::createSyntheticSections() {239template <class ELFT> static void createSyntheticSections() {
277 // Initialize all pointers with NULL. This is needed because240 // Initialize all pointers with NULL. This is needed because
278 // you can call lld::elf::main more than once as a library.241 // you can call lld::elf::main more than once as a library.
279 memset(&Out::First, 0, sizeof(Out));242 memset(&Out::First, 0, sizeof(Out));
...@@ -282,16 +245,19 @@ template <class ELFT> void Writer<ELFT>::createSyntheticSections() {...@@ -282,16 +245,19 @@ template <class ELFT> void Writer<ELFT>::createSyntheticSections() {
282245
283 InX::DynStrTab = make<StringTableSection>(".dynstr", true);246 InX::DynStrTab = make<StringTableSection>(".dynstr", true);
284 InX::Dynamic = make<DynamicSection<ELFT>>();247 InX::Dynamic = make<DynamicSection<ELFT>>();
285 In<ELFT>::RelaDyn = make<RelocationSection<ELFT>>(248 if (Config->AndroidPackDynRelocs) {
286 Config->IsRela ? ".rela.dyn" : ".rel.dyn", Config->ZCombreloc);249 InX::RelaDyn = make<AndroidPackedRelocationSection<ELFT>>(
250 Config->IsRela ? ".rela.dyn" : ".rel.dyn");
251 } else {
252 InX::RelaDyn = make<RelocationSection<ELFT>>(
253 Config->IsRela ? ".rela.dyn" : ".rel.dyn", Config->ZCombreloc);
254 }
287 InX::ShStrTab = make<StringTableSection>(".shstrtab", false);255 InX::ShStrTab = make<StringTableSection>(".shstrtab", false);
288256
289 Out::ElfHeader = make<OutputSection>("", 0, SHF_ALLOC);
290 Out::ElfHeader->Size = sizeof(Elf_Ehdr);
291 Out::ProgramHeaders = make<OutputSection>("", 0, SHF_ALLOC);257 Out::ProgramHeaders = make<OutputSection>("", 0, SHF_ALLOC);
292 Out::ProgramHeaders->updateAlignment(Config->Wordsize);258 Out::ProgramHeaders->Alignment = Config->Wordsize;
293259
294 if (needsInterpSection<ELFT>()) {260 if (needsInterpSection()) {
295 InX::Interp = createInterpSection();261 InX::Interp = createInterpSection();
296 Add(InX::Interp);262 Add(InX::Interp);
297 } else {263 } else {
...@@ -308,20 +274,21 @@ template <class ELFT> void Writer<ELFT>::createSyntheticSections() {...@@ -308,20 +274,21 @@ template <class ELFT> void Writer<ELFT>::createSyntheticSections() {
308 Add(InX::BuildId);274 Add(InX::BuildId);
309 }275 }
310276
311 InX::Common = createCommonSection<ELFT>();277 InX::Bss = make<BssSection>(".bss", 0, 1);
312 if (InX::Common)
313 Add(InX::Common);
314
315 InX::Bss = make<BssSection>(".bss");
316 Add(InX::Bss);278 Add(InX::Bss);
317 InX::BssRelRo = make<BssSection>(".bss.rel.ro");279
280 // If there is a SECTIONS command and a .data.rel.ro section name use name
281 // .data.rel.ro.bss so that we match in the .data.rel.ro output section.
282 // This makes sure our relro is contiguous.
283 bool HasDataRelRo =
284 Script->HasSectionsCommand && findSection(".data.rel.ro");
285 InX::BssRelRo = make<BssSection>(
286 HasDataRelRo ? ".data.rel.ro.bss" : ".bss.rel.ro", 0, 1);
318 Add(InX::BssRelRo);287 Add(InX::BssRelRo);
319288
320 // Add MIPS-specific sections.289 // Add MIPS-specific sections.
321 bool HasDynSymTab = !Symtab<ELFT>::X->getSharedFiles().empty() ||
322 Config->Pic || Config->ExportDynamic;
323 if (Config->EMachine == EM_MIPS) {290 if (Config->EMachine == EM_MIPS) {
324 if (!Config->Shared && HasDynSymTab) {291 if (!Config->Shared && Config->HasDynSymTab) {
325 InX::MipsRldMap = make<MipsRldMapSection>();292 InX::MipsRldMap = make<MipsRldMapSection>();
326 Add(InX::MipsRldMap);293 Add(InX::MipsRldMap);
327 }294 }
...@@ -333,7 +300,7 @@ template <class ELFT> void Writer<ELFT>::createSyntheticSections() {...@@ -333,7 +300,7 @@ template <class ELFT> void Writer<ELFT>::createSyntheticSections() {
333 Add(Sec);300 Add(Sec);
334 }301 }
335302
336 if (HasDynSymTab) {303 if (Config->HasDynSymTab) {
337 InX::DynSymTab = make<SymbolTableSection<ELFT>>(*InX::DynStrTab);304 InX::DynSymTab = make<SymbolTableSection<ELFT>>(*InX::DynStrTab);
338 Add(InX::DynSymTab);305 Add(InX::DynSymTab);
339306
...@@ -354,13 +321,13 @@ template <class ELFT> void Writer<ELFT>::createSyntheticSections() {...@@ -354,13 +321,13 @@ template <class ELFT> void Writer<ELFT>::createSyntheticSections() {
354 }321 }
355322
356 if (Config->SysvHash) {323 if (Config->SysvHash) {
357 In<ELFT>::HashTab = make<HashTableSection<ELFT>>();324 InX::HashTab = make<HashTableSection>();
358 Add(In<ELFT>::HashTab);325 Add(InX::HashTab);
359 }326 }
360327
361 Add(InX::Dynamic);328 Add(InX::Dynamic);
362 Add(InX::DynStrTab);329 Add(InX::DynStrTab);
363 Add(In<ELFT>::RelaDyn);330 Add(InX::RelaDyn);
364 }331 }
365332
366 // Add .got. MIPS' .got is so different from the other archs,333 // Add .got. MIPS' .got is so different from the other archs,
...@@ -385,16 +352,22 @@ template <class ELFT> void Writer<ELFT>::createSyntheticSections() {...@@ -385,16 +352,22 @@ template <class ELFT> void Writer<ELFT>::createSyntheticSections() {
385352
386 // We always need to add rel[a].plt to output if it has entries.353 // We always need to add rel[a].plt to output if it has entries.
387 // Even for static linking it can contain R_[*]_IRELATIVE relocations.354 // Even for static linking it can contain R_[*]_IRELATIVE relocations.
388 In<ELFT>::RelaPlt = make<RelocationSection<ELFT>>(355 InX::RelaPlt = make<RelocationSection<ELFT>>(
389 Config->IsRela ? ".rela.plt" : ".rel.plt", false /*Sort*/);356 Config->IsRela ? ".rela.plt" : ".rel.plt", false /*Sort*/);
390 Add(In<ELFT>::RelaPlt);357 Add(InX::RelaPlt);
391358
392 // The RelaIplt immediately follows .rel.plt (.rel.dyn for ARM) to ensure359 // The RelaIplt immediately follows .rel.plt (.rel.dyn for ARM) to ensure
393 // that the IRelative relocations are processed last by the dynamic loader360 // that the IRelative relocations are processed last by the dynamic loader.
394 In<ELFT>::RelaIplt = make<RelocationSection<ELFT>>(361 // We cannot place the iplt section in .rel.dyn when Android relocation
395 (Config->EMachine == EM_ARM) ? ".rel.dyn" : In<ELFT>::RelaPlt->Name,362 // packing is enabled because that would cause a section type mismatch.
363 // However, because the Android dynamic loader reads .rel.plt after .rel.dyn,
364 // we can get the desired behaviour by placing the iplt section in .rel.plt.
365 InX::RelaIplt = make<RelocationSection<ELFT>>(
366 (Config->EMachine == EM_ARM && !Config->AndroidPackDynRelocs)
367 ? ".rel.dyn"
368 : InX::RelaPlt->Name,
396 false /*Sort*/);369 false /*Sort*/);
397 Add(In<ELFT>::RelaIplt);370 Add(InX::RelaIplt);
398371
399 InX::Plt = make<PltSection>(Target->PltHeaderSize);372 InX::Plt = make<PltSection>(Target->PltHeaderSize);
400 Add(InX::Plt);373 Add(InX::Plt);
...@@ -403,11 +376,11 @@ template <class ELFT> void Writer<ELFT>::createSyntheticSections() {...@@ -403,11 +376,11 @@ template <class ELFT> void Writer<ELFT>::createSyntheticSections() {
403376
404 if (!Config->Relocatable) {377 if (!Config->Relocatable) {
405 if (Config->EhFrameHdr) {378 if (Config->EhFrameHdr) {
406 In<ELFT>::EhFrameHdr = make<EhFrameHeader<ELFT>>();379 InX::EhFrameHdr = make<EhFrameHeader>();
407 Add(In<ELFT>::EhFrameHdr);380 Add(InX::EhFrameHdr);
408 }381 }
409 In<ELFT>::EhFrame = make<EhFrameSection<ELFT>>();382 InX::EhFrame = make<EhFrameSection>();
410 Add(In<ELFT>::EhFrame);383 Add(InX::EhFrame);
411 }384 }
412385
413 if (InX::SymTab)386 if (InX::SymTab)
...@@ -415,10 +388,105 @@ template <class ELFT> void Writer<ELFT>::createSyntheticSections() {...@@ -415,10 +388,105 @@ template <class ELFT> void Writer<ELFT>::createSyntheticSections() {
415 Add(InX::ShStrTab);388 Add(InX::ShStrTab);
416 if (InX::StrTab)389 if (InX::StrTab)
417 Add(InX::StrTab);390 Add(InX::StrTab);
391
392 if (Config->EMachine == EM_ARM && !Config->Relocatable)
393 // Add a sentinel to terminate .ARM.exidx. It helps an unwinder
394 // to find the exact address range of the last entry.
395 Add(make<ARMExidxSentinelSection>());
396}
397
398// The main function of the writer.
399template <class ELFT> void Writer<ELFT>::run() {
400 // Create linker-synthesized sections such as .got or .plt.
401 // Such sections are of type input section.
402 createSyntheticSections<ELFT>();
403
404 if (!Config->Relocatable)
405 combineEhFrameSections<ELFT>();
406
407 // We want to process linker script commands. When SECTIONS command
408 // is given we let it create sections.
409 Script->processSectionCommands();
410
411 // Linker scripts controls how input sections are assigned to output sections.
412 // Input sections that were not handled by scripts are called "orphans", and
413 // they are assigned to output sections by the default rule. Process that.
414 Script->addOrphanSections();
415
416 if (Config->Discard != DiscardPolicy::All)
417 copyLocalSymbols();
418
419 if (Config->CopyRelocs)
420 addSectionSymbols();
421
422 // Now that we have a complete set of output sections. This function
423 // completes section contents. For example, we need to add strings
424 // to the string table, and add entries to .got and .plt.
425 // finalizeSections does that.
426 finalizeSections();
427 if (errorCount())
428 return;
429
430 Script->assignAddresses();
431
432 // If -compressed-debug-sections is specified, we need to compress
433 // .debug_* sections. Do it right now because it changes the size of
434 // output sections.
435 for (OutputSection *Sec : OutputSections)
436 Sec->maybeCompress<ELFT>();
437
438 Script->allocateHeaders(Phdrs);
439
440 // Remove empty PT_LOAD to avoid causing the dynamic linker to try to mmap a
441 // 0 sized region. This has to be done late since only after assignAddresses
442 // we know the size of the sections.
443 removeEmptyPTLoad();
444
445 if (!Config->OFormatBinary)
446 assignFileOffsets();
447 else
448 assignFileOffsetsBinary();
449
450 setPhdrs();
451
452 if (Config->Relocatable) {
453 for (OutputSection *Sec : OutputSections)
454 Sec->Addr = 0;
455 }
456
457 // It does not make sense try to open the file if we have error already.
458 if (errorCount())
459 return;
460 // Write the result down to a file.
461 openFile();
462 if (errorCount())
463 return;
464
465 if (!Config->OFormatBinary) {
466 writeTrapInstr();
467 writeHeader();
468 writeSections();
469 } else {
470 writeSectionsBinary();
471 }
472
473 // Backfill .note.gnu.build-id section content. This is done at last
474 // because the content is usually a hash value of the entire output file.
475 writeBuildId();
476 if (errorCount())
477 return;
478
479 // Handle -Map option.
480 writeMapFile();
481 if (errorCount())
482 return;
483
484 if (auto E = Buffer->commit())
485 error("failed to write to the output file: " + toString(std::move(E)));
418}486}
419487
420static bool shouldKeepInSymtab(SectionBase *Sec, StringRef SymName,488static bool shouldKeepInSymtab(SectionBase *Sec, StringRef SymName,
421 const SymbolBody &B) {489 const Symbol &B) {
422 if (B.isFile() || B.isSection())490 if (B.isFile() || B.isSection())
423 return false;491 return false;
424492
...@@ -443,27 +511,25 @@ static bool shouldKeepInSymtab(SectionBase *Sec, StringRef SymName,...@@ -443,27 +511,25 @@ static bool shouldKeepInSymtab(SectionBase *Sec, StringRef SymName,
443 return !Sec || !(Sec->Flags & SHF_MERGE);511 return !Sec || !(Sec->Flags & SHF_MERGE);
444}512}
445513
446static bool includeInSymtab(const SymbolBody &B) {514static bool includeInSymtab(const Symbol &B) {
447 if (!B.isLocal() && !B.symbol()->IsUsedInRegularObj)515 if (!B.isLocal() && !B.IsUsedInRegularObj)
448 return false;516 return false;
449517
450 if (auto *D = dyn_cast<DefinedRegular>(&B)) {518 if (auto *D = dyn_cast<Defined>(&B)) {
451 // Always include absolute symbols.519 // Always include absolute symbols.
452 SectionBase *Sec = D->Section;520 SectionBase *Sec = D->Section;
453 if (!Sec)521 if (!Sec)
454 return true;522 return true;
455 if (auto *IS = dyn_cast<InputSectionBase>(Sec)) {523 Sec = Sec->Repl;
456 Sec = IS->Repl;524 // Exclude symbols pointing to garbage-collected sections.
457 IS = cast<InputSectionBase>(Sec);525 if (isa<InputSectionBase>(Sec) && !Sec->Live)
458 // Exclude symbols pointing to garbage-collected sections.526 return false;
459 if (!IS->Live)
460 return false;
461 }
462 if (auto *S = dyn_cast<MergeInputSection>(Sec))527 if (auto *S = dyn_cast<MergeInputSection>(Sec))
463 if (!S->getSectionPiece(D->Value)->Live)528 if (!S->getSectionPiece(D->Value)->Live)
464 return false;529 return false;
530 return true;
465 }531 }
466 return true;532 return B.Used;
467}533}
468534
469// Local symbols are not in the linker's symbol table. This function scans535// Local symbols are not in the linker's symbol table. This function scans
...@@ -471,12 +537,13 @@ static bool includeInSymtab(const SymbolBody &B) {...@@ -471,12 +537,13 @@ static bool includeInSymtab(const SymbolBody &B) {
471template <class ELFT> void Writer<ELFT>::copyLocalSymbols() {537template <class ELFT> void Writer<ELFT>::copyLocalSymbols() {
472 if (!InX::SymTab)538 if (!InX::SymTab)
473 return;539 return;
474 for (elf::ObjectFile<ELFT> *F : Symtab<ELFT>::X->getObjectFiles()) {540 for (InputFile *File : ObjectFiles) {
475 for (SymbolBody *B : F->getLocalSymbols()) {541 ObjFile<ELFT> *F = cast<ObjFile<ELFT>>(File);
476 if (!B->IsLocal)542 for (Symbol *B : F->getLocalSymbols()) {
543 if (!B->isLocal())
477 fatal(toString(F) +544 fatal(toString(F) +
478 ": broken object: getLocalSymbols returns a non-local symbol");545 ": broken object: getLocalSymbols returns a non-local symbol");
479 auto *DR = dyn_cast<DefinedRegular>(B);546 auto *DR = dyn_cast<Defined>(B);
480547
481 // No reason to keep local undefined symbol in symtab.548 // No reason to keep local undefined symbol in symtab.
482 if (!DR)549 if (!DR)
...@@ -493,27 +560,36 @@ template <class ELFT> void Writer<ELFT>::copyLocalSymbols() {...@@ -493,27 +560,36 @@ template <class ELFT> void Writer<ELFT>::copyLocalSymbols() {
493}560}
494561
495template <class ELFT> void Writer<ELFT>::addSectionSymbols() {562template <class ELFT> void Writer<ELFT>::addSectionSymbols() {
496 // Create one STT_SECTION symbol for each output section we might563 // Create a section symbol for each output section so that we can represent
497 // have a relocation with.564 // relocations that point to the section. If we know that no relocation is
498 for (BaseCommand *Base : Script->Opt.Commands) {565 // referring to a section (that happens if the section is a synthetic one), we
499 auto *Cmd = dyn_cast<OutputSectionCommand>(Base);566 // don't create a section symbol for that section.
500 if (!Cmd)567 for (BaseCommand *Base : Script->SectionCommands) {
568 auto *Sec = dyn_cast<OutputSection>(Base);
569 if (!Sec)
501 continue;570 continue;
502 auto I = llvm::find_if(Cmd->Commands, [](BaseCommand *Base) {571 auto I = llvm::find_if(Sec->SectionCommands, [](BaseCommand *Base) {
503 if (auto *ISD = dyn_cast<InputSectionDescription>(Base))572 if (auto *ISD = dyn_cast<InputSectionDescription>(Base))
504 return !ISD->Sections.empty();573 return !ISD->Sections.empty();
505 return false;574 return false;
506 });575 });
507 if (I == Cmd->Commands.end())576 if (I == Sec->SectionCommands.end())
508 continue;577 continue;
509 InputSection *IS = cast<InputSectionDescription>(*I)->Sections[0];578 InputSection *IS = cast<InputSectionDescription>(*I)->Sections[0];
510 if (isa<SyntheticSection>(IS) || IS->Type == SHT_REL ||579
511 IS->Type == SHT_RELA)580 // Relocations are not using REL[A] section symbols.
581 if (IS->Type == SHT_REL || IS->Type == SHT_RELA)
582 continue;
583
584 // Unlike other synthetic sections, mergeable output sections contain data
585 // copied from input sections, and there may be a relocation pointing to its
586 // contents if -r or -emit-reloc are given.
587 if (isa<SyntheticSection>(IS) && !(IS->Flags & SHF_MERGE))
512 continue;588 continue;
513589
514 auto *Sym =590 auto *Sym =
515 make<DefinedRegular>("", /*IsLocal=*/true, /*StOther=*/0, STT_SECTION,591 make<Defined>(IS->File, "", STB_LOCAL, /*StOther=*/0, STT_SECTION,
516 /*Value=*/0, /*Size=*/0, IS, nullptr);592 /*Value=*/0, /*Size=*/0, IS);
517 InX::SymTab->addSymbol(Sym);593 InX::SymTab->addSymbol(Sym);
518 }594 }
519}595}
...@@ -524,7 +600,7 @@ template <class ELFT> void Writer<ELFT>::addSectionSymbols() {...@@ -524,7 +600,7 @@ template <class ELFT> void Writer<ELFT>::addSectionSymbols() {
524//600//
525// This function returns true if a section needs to be put into a601// This function returns true if a section needs to be put into a
526// PT_GNU_RELRO segment.602// PT_GNU_RELRO segment.
527bool elf::isRelroSection(const OutputSection *Sec) {603static bool isRelroSection(const OutputSection *Sec) {
528 if (!Config->ZRelro)604 if (!Config->ZRelro)
529 return false;605 return false;
530606
...@@ -575,20 +651,14 @@ bool elf::isRelroSection(const OutputSection *Sec) {...@@ -575,20 +651,14 @@ bool elf::isRelroSection(const OutputSection *Sec) {
575 if (Sec == InX::Dynamic->getParent())651 if (Sec == InX::Dynamic->getParent())
576 return true;652 return true;
577653
578 // .bss.rel.ro is used for copy relocations for read-only symbols.
579 // Since the dynamic linker needs to process copy relocations, the
580 // section cannot be read-only, but once initialized, they shouldn't
581 // change.
582 if (Sec == InX::BssRelRo->getParent())
583 return true;
584
585 // Sections with some special names are put into RELRO. This is a654 // Sections with some special names are put into RELRO. This is a
586 // bit unfortunate because section names shouldn't be significant in655 // bit unfortunate because section names shouldn't be significant in
587 // ELF in spirit. But in reality many linker features depend on656 // ELF in spirit. But in reality many linker features depend on
588 // magic section names.657 // magic section names.
589 StringRef S = Sec->Name;658 StringRef S = Sec->Name;
590 return S == ".data.rel.ro" || S == ".ctors" || S == ".dtors" || S == ".jcr" ||659 return S == ".data.rel.ro" || S == ".bss.rel.ro" || S == ".ctors" ||
591 S == ".eh_frame" || S == ".openbsd.randomdata";660 S == ".dtors" || S == ".jcr" || S == ".eh_frame" ||
661 S == ".openbsd.randomdata";
592}662}
593663
594// We compute a rank for each section. The rank indicates where the664// We compute a rank for each section. The rank indicates where the
...@@ -696,8 +766,8 @@ static unsigned getSectionRank(const OutputSection *Sec) {...@@ -696,8 +766,8 @@ static unsigned getSectionRank(const OutputSection *Sec) {
696 if (IsNoBits)766 if (IsNoBits)
697 Rank |= RF_BSS;767 Rank |= RF_BSS;
698768
699 // // Some architectures have additional ordering restrictions for sections769 // Some architectures have additional ordering restrictions for sections
700 // // within the same PT_LOAD.770 // within the same PT_LOAD.
701 if (Config->EMachine == EM_PPC64) {771 if (Config->EMachine == EM_PPC64) {
702 // PPC64 has a number of special SHT_PROGBITS+SHF_ALLOC+SHF_WRITE sections772 // PPC64 has a number of special SHT_PROGBITS+SHF_ALLOC+SHF_WRITE sections
703 // that we would like to make sure appear is a specific order to maximize773 // that we would like to make sure appear is a specific order to maximize
...@@ -735,8 +805,8 @@ static unsigned getSectionRank(const OutputSection *Sec) {...@@ -735,8 +805,8 @@ static unsigned getSectionRank(const OutputSection *Sec) {
735}805}
736806
737static bool compareSections(const BaseCommand *ACmd, const BaseCommand *BCmd) {807static bool compareSections(const BaseCommand *ACmd, const BaseCommand *BCmd) {
738 const OutputSection *A = cast<OutputSectionCommand>(ACmd)->Sec;808 const OutputSection *A = cast<OutputSection>(ACmd);
739 const OutputSection *B = cast<OutputSectionCommand>(BCmd)->Sec;809 const OutputSection *B = cast<OutputSection>(BCmd);
740 if (A->SortRank != B->SortRank)810 if (A->SortRank != B->SortRank)
741 return A->SortRank < B->SortRank;811 return A->SortRank < B->SortRank;
742 if (!(A->SortRank & RF_NOT_ADDR_SET))812 if (!(A->SortRank & RF_NOT_ADDR_SET))
...@@ -746,36 +816,12 @@ static bool compareSections(const BaseCommand *ACmd, const BaseCommand *BCmd) {...@@ -746,36 +816,12 @@ static bool compareSections(const BaseCommand *ACmd, const BaseCommand *BCmd) {
746}816}
747817
748void PhdrEntry::add(OutputSection *Sec) {818void PhdrEntry::add(OutputSection *Sec) {
749 Last = Sec;819 LastSec = Sec;
750 if (!First)820 if (!FirstSec)
751 First = Sec;821 FirstSec = Sec;
752 p_align = std::max(p_align, Sec->Alignment);822 p_align = std::max(p_align, Sec->Alignment);
753 if (p_type == PT_LOAD)823 if (p_type == PT_LOAD)
754 Sec->FirstInPtLoad = First;824 Sec->PtLoad = this;
755}
756
757template <class ELFT>
758static Symbol *addRegular(StringRef Name, SectionBase *Sec, uint64_t Value,
759 uint8_t StOther = STV_HIDDEN,
760 uint8_t Binding = STB_WEAK) {
761 // The linker generated symbols are added as STB_WEAK to allow user defined
762 // ones to override them.
763 return Symtab<ELFT>::X->addRegular(Name, StOther, STT_NOTYPE, Value,
764 /*Size=*/0, Binding, Sec,
765 /*File=*/nullptr);
766}
767
768template <class ELFT>
769static DefinedRegular *
770addOptionalRegular(StringRef Name, SectionBase *Sec, uint64_t Val,
771 uint8_t StOther = STV_HIDDEN, uint8_t Binding = STB_GLOBAL) {
772 SymbolBody *S = Symtab<ELFT>::X->find(Name);
773 if (!S)
774 return nullptr;
775 if (S->isInCurrentDSO())
776 return nullptr;
777 return cast<DefinedRegular>(
778 addRegular<ELFT>(Name, Sec, Val, StOther, Binding)->body());
779}825}
780826
781// The beginning and the ending of .rel[a].plt section are marked827// The beginning and the ending of .rel[a].plt section are marked
...@@ -785,177 +831,115 @@ addOptionalRegular(StringRef Name, SectionBase *Sec, uint64_t Val,...@@ -785,177 +831,115 @@ addOptionalRegular(StringRef Name, SectionBase *Sec, uint64_t Val,
785// need these symbols, since IRELATIVE relocs are resolved through GOT831// need these symbols, since IRELATIVE relocs are resolved through GOT
786// and PLT. For details, see http://www.airs.com/blog/archives/403.832// and PLT. For details, see http://www.airs.com/blog/archives/403.
787template <class ELFT> void Writer<ELFT>::addRelIpltSymbols() {833template <class ELFT> void Writer<ELFT>::addRelIpltSymbols() {
788 if (InX::DynSymTab)834 if (!Config->Static)
789 return;835 return;
790 StringRef S = Config->IsRela ? "__rela_iplt_start" : "__rel_iplt_start";836 StringRef S = Config->IsRela ? "__rela_iplt_start" : "__rel_iplt_start";
791 addOptionalRegular<ELFT>(S, In<ELFT>::RelaIplt, 0, STV_HIDDEN, STB_WEAK);837 addOptionalRegular(S, InX::RelaIplt, 0, STV_HIDDEN, STB_WEAK);
792838
793 S = Config->IsRela ? "__rela_iplt_end" : "__rel_iplt_end";839 S = Config->IsRela ? "__rela_iplt_end" : "__rel_iplt_end";
794 addOptionalRegular<ELFT>(S, In<ELFT>::RelaIplt, -1, STV_HIDDEN, STB_WEAK);840 addOptionalRegular(S, InX::RelaIplt, -1, STV_HIDDEN, STB_WEAK);
795}841}
796842
797// The linker is expected to define some symbols depending on843template <class ELFT>
798// the linking result. This function defines such symbols.844void Writer<ELFT>::forEachRelSec(std::function<void(InputSectionBase &)> Fn) {
799template <class ELFT> void Writer<ELFT>::addReservedSymbols() {845 // Scan all relocations. Each relocation goes through a series
800 if (Config->EMachine == EM_MIPS) {846 // of tests to determine if it needs special treatment, such as
801 // Define _gp for MIPS. st_value of _gp symbol will be updated by Writer847 // creating GOT, PLT, copy relocations, etc.
802 // so that it points to an absolute address which by default is relative848 // Note that relocations for non-alloc sections are directly
803 // to GOT. Default offset is 0x7ff0.849 // processed by InputSection::relocateNonAlloc.
804 // See "Global Data Symbols" in Chapter 6 in the following document:850 for (InputSectionBase *IS : InputSections)
805 // ftp://www.linux-mips.org/pub/linux/mips/doc/ABI/mipsabi.pdf851 if (IS->Live && isa<InputSection>(IS) && (IS->Flags & SHF_ALLOC))
806 ElfSym::MipsGp = Symtab<ELFT>::X->addAbsolute("_gp", STV_HIDDEN, STB_LOCAL);852 Fn(*IS);
807853 for (EhInputSection *ES : InX::EhFrame->Sections)
808 // On MIPS O32 ABI, _gp_disp is a magic symbol designates offset between854 Fn(*ES);
809 // start of function and 'gp' pointer into GOT.855}
810 if (Symtab<ELFT>::X->find("_gp_disp"))
811 ElfSym::MipsGpDisp =
812 Symtab<ELFT>::X->addAbsolute("_gp_disp", STV_HIDDEN, STB_LOCAL);
813856
814 // The __gnu_local_gp is a magic symbol equal to the current value of 'gp'857// This function generates assignments for predefined symbols (e.g. _end or
815 // pointer. This symbol is used in the code generated by .cpload pseudo-op858// _etext) and inserts them into the commands sequence to be processed at the
816 // in case of using -mno-shared option.859// appropriate time. This ensures that the value is going to be correct by the
817 // https://sourceware.org/ml/binutils/2004-12/msg00094.html860// time any references to these symbols are processed and is equivalent to
818 if (Symtab<ELFT>::X->find("__gnu_local_gp"))861// defining these symbols explicitly in the linker script.
819 ElfSym::MipsLocalGp =862template <class ELFT> void Writer<ELFT>::setReservedSymbolSections() {
820 Symtab<ELFT>::X->addAbsolute("__gnu_local_gp", STV_HIDDEN, STB_LOCAL);863 if (ElfSym::GlobalOffsetTable) {
864 // The _GLOBAL_OFFSET_TABLE_ symbol is defined by target convention to
865 // be at some offset from the base of the .got section, usually 0 or the end
866 // of the .got
867 InputSection *GotSection = InX::MipsGot ? cast<InputSection>(InX::MipsGot)
868 : cast<InputSection>(InX::Got);
869 ElfSym::GlobalOffsetTable->Section = GotSection;
821 }870 }
822871
823 // The _GLOBAL_OFFSET_TABLE_ symbol is defined by target convention to872 PhdrEntry *Last = nullptr;
824 // be at some offset from the base of the .got section, usually 0 or the end873 PhdrEntry *LastRO = nullptr;
825 // of the .got
826 InputSection *GotSection = InX::MipsGot ? cast<InputSection>(InX::MipsGot)
827 : cast<InputSection>(InX::Got);
828 ElfSym::GlobalOffsetTable = addOptionalRegular<ELFT>(
829 "_GLOBAL_OFFSET_TABLE_", GotSection, Target->GotBaseSymOff);
830
831 // __tls_get_addr is defined by the dynamic linker for dynamic ELFs. For
832 // static linking the linker is required to optimize away any references to
833 // __tls_get_addr, so it's not defined anywhere. Create a hidden definition
834 // to avoid the undefined symbol error.
835 if (!InX::DynSymTab)
836 Symtab<ELFT>::X->addIgnored("__tls_get_addr");
837
838 // __ehdr_start is the location of ELF file headers. Note that we define
839 // this symbol unconditionally even when using a linker script, which
840 // differs from the behavior implemented by GNU linker which only define
841 // this symbol if ELF headers are in the memory mapped segment.
842 // __executable_start is not documented, but the expectation of at
843 // least the android libc is that it points to the elf header too.
844 // __dso_handle symbol is passed to cxa_finalize as a marker to identify
845 // each DSO. The address of the symbol doesn't matter as long as they are
846 // different in different DSOs, so we chose the start address of the DSO.
847 for (const char *Name :
848 {"__ehdr_start", "__executable_start", "__dso_handle"})
849 addOptionalRegular<ELFT>(Name, Out::ElfHeader, 0, STV_HIDDEN);
850
851 // If linker script do layout we do not need to create any standart symbols.
852 if (Script->Opt.HasSections)
853 return;
854
855 auto Add = [](StringRef S) {
856 return addOptionalRegular<ELFT>(S, Out::ElfHeader, 0, STV_DEFAULT);
857 };
858
859 ElfSym::Bss = Add("__bss_start");
860 ElfSym::End1 = Add("end");
861 ElfSym::End2 = Add("_end");
862 ElfSym::Etext1 = Add("etext");
863 ElfSym::Etext2 = Add("_etext");
864 ElfSym::Edata1 = Add("edata");
865 ElfSym::Edata2 = Add("_edata");
866}
867
868// Sort input sections by section name suffixes for
869// __attribute__((init_priority(N))).
870static void sortInitFini(OutputSectionCommand *Cmd) {
871 if (Cmd)
872 Cmd->sortInitFini();
873}
874874
875// Sort input sections by the special rule for .ctors and .dtors.875 for (PhdrEntry *P : Phdrs) {
876static void sortCtorsDtors(OutputSectionCommand *Cmd) {876 if (P->p_type != PT_LOAD)
877 if (Cmd)877 continue;
878 Cmd->sortCtorsDtors();878 Last = P;
879}879 if (!(P->p_flags & PF_W))
880 LastRO = P;
881 }
880882
881// Sort input sections using the list provided by --symbol-ordering-file.883 if (LastRO) {
882template <class ELFT> static void sortBySymbolsOrder() {884 // _etext is the first location after the last read-only loadable segment.
883 if (Config->SymbolOrderingFile.empty())885 if (ElfSym::Etext1)
884 return;886 ElfSym::Etext1->Section = LastRO->LastSec;
887 if (ElfSym::Etext2)
888 ElfSym::Etext2->Section = LastRO->LastSec;
889 }
885890
886 // Build a map from symbols to their priorities. Symbols that didn't891 if (Last) {
887 // appear in the symbol ordering file have the lowest priority 0.892 // _edata points to the end of the last mapped initialized section.
888 // All explicitly mentioned symbols have negative (higher) priorities.893 OutputSection *Edata = nullptr;
889 DenseMap<StringRef, int> SymbolOrder;894 for (OutputSection *OS : OutputSections) {
890 int Priority = -Config->SymbolOrderingFile.size();895 if (OS->Type != SHT_NOBITS)
891 for (StringRef S : Config->SymbolOrderingFile)896 Edata = OS;
892 SymbolOrder.insert({S, Priority++});897 if (OS == Last->LastSec)
893898 break;
894 // Build a map from sections to their priorities.
895 DenseMap<SectionBase *, int> SectionOrder;
896 for (elf::ObjectFile<ELFT> *File : Symtab<ELFT>::X->getObjectFiles()) {
897 for (SymbolBody *Body : File->getSymbols()) {
898 auto *D = dyn_cast<DefinedRegular>(Body);
899 if (!D || !D->Section)
900 continue;
901 int &Priority = SectionOrder[D->Section];
902 Priority = std::min(Priority, SymbolOrder.lookup(D->getName()));
903 }899 }
904 }
905900
906 // Sort sections by priority.901 if (ElfSym::Edata1)
907 for (BaseCommand *Base : Script->Opt.Commands)902 ElfSym::Edata1->Section = Edata;
908 if (auto *Cmd = dyn_cast<OutputSectionCommand>(Base))903 if (ElfSym::Edata2)
909 Cmd->sort([&](InputSectionBase *S) { return SectionOrder.lookup(S); });904 ElfSym::Edata2->Section = Edata;
910}
911905
912template <class ELFT>906 // _end is the first location after the uninitialized data region.
913void Writer<ELFT>::forEachRelSec(std::function<void(InputSectionBase &)> Fn) {907 if (ElfSym::End1)
914 for (InputSectionBase *IS : InputSections) {908 ElfSym::End1->Section = Last->LastSec;
915 if (!IS->Live)909 if (ElfSym::End2)
916 continue;910 ElfSym::End2->Section = Last->LastSec;
917 // Scan all relocations. Each relocation goes through a series
918 // of tests to determine if it needs special treatment, such as
919 // creating GOT, PLT, copy relocations, etc.
920 // Note that relocations for non-alloc sections are directly
921 // processed by InputSection::relocateNonAlloc.
922 if (!(IS->Flags & SHF_ALLOC))
923 continue;
924 if (isa<InputSection>(IS) || isa<EhInputSection>(IS))
925 Fn(*IS);
926 }911 }
927912
928 if (!Config->Relocatable) {913 if (ElfSym::Bss)
929 for (EhInputSection *ES : In<ELFT>::EhFrame->Sections)914 ElfSym::Bss->Section = findSection(".bss");
930 Fn(*ES);
931 }
932}
933915
934template <class ELFT> void Writer<ELFT>::createSections() {916 // Setup MIPS _gp_disp/__gnu_local_gp symbols which should
935 for (InputSectionBase *IS : InputSections)917 // be equal to the _gp symbol's value.
936 if (IS)918 if (ElfSym::MipsGp) {
937 Factory.addInputSec(IS, getOutputSectionName(IS->Name));919 // Find GP-relative section with the lowest address
938920 // and use this address to calculate default _gp value.
939 Script->fabricateDefaultCommands();921 for (OutputSection *OS : OutputSections) {
940 sortBySymbolsOrder<ELFT>();922 if (OS->Flags & SHF_MIPS_GPREL) {
941 sortInitFini(findSectionCommand(".init_array"));923 ElfSym::MipsGp->Section = OS;
942 sortInitFini(findSectionCommand(".fini_array"));924 ElfSym::MipsGp->Value = 0x7ff0;
943 sortCtorsDtors(findSectionCommand(".ctors"));925 break;
944 sortCtorsDtors(findSectionCommand(".dtors"));926 }
927 }
928 }
945}929}
946930
947// We want to find how similar two ranks are.931// We want to find how similar two ranks are.
948// The more branches in getSectionRank that match, the more similar they are.932// The more branches in getSectionRank that match, the more similar they are.
949// Since each branch corresponds to a bit flag, we can just use933// Since each branch corresponds to a bit flag, we can just use
950// countLeadingZeros.934// countLeadingZeros.
951static int getRankProximity(OutputSection *A, OutputSection *B) {935static int getRankProximityAux(OutputSection *A, OutputSection *B) {
952 return countLeadingZeros(A->SortRank ^ B->SortRank);936 return countLeadingZeros(A->SortRank ^ B->SortRank);
953}937}
954938
955static int getRankProximity(OutputSection *A, BaseCommand *B) {939static int getRankProximity(OutputSection *A, BaseCommand *B) {
956 if (auto *Cmd = dyn_cast<OutputSectionCommand>(B))940 if (auto *Sec = dyn_cast<OutputSection>(B))
957 if (Cmd->Sec)941 if (Sec->Live)
958 return getRankProximity(A, Cmd->Sec);942 return getRankProximityAux(A, Sec);
959 return -1;943 return -1;
960}944}
961945
...@@ -974,7 +958,7 @@ static int getRankProximity(OutputSection *A, BaseCommand *B) {...@@ -974,7 +958,7 @@ static int getRankProximity(OutputSection *A, BaseCommand *B) {
974// rw_sec : { *(rw_sec) }958// rw_sec : { *(rw_sec) }
975// would mean that the RW PT_LOAD would become unaligned.959// would mean that the RW PT_LOAD would become unaligned.
976static bool shouldSkip(BaseCommand *Cmd) {960static bool shouldSkip(BaseCommand *Cmd) {
977 if (isa<OutputSectionCommand>(Cmd))961 if (isa<OutputSection>(Cmd))
978 return false;962 return false;
979 if (auto *Assign = dyn_cast<SymbolAssignment>(Cmd))963 if (auto *Assign = dyn_cast<SymbolAssignment>(Cmd))
980 return Assign->Name != ".";964 return Assign->Name != ".";
...@@ -988,7 +972,7 @@ template <typename ELFT>...@@ -988,7 +972,7 @@ template <typename ELFT>
988static std::vector<BaseCommand *>::iterator972static std::vector<BaseCommand *>::iterator
989findOrphanPos(std::vector<BaseCommand *>::iterator B,973findOrphanPos(std::vector<BaseCommand *>::iterator B,
990 std::vector<BaseCommand *>::iterator E) {974 std::vector<BaseCommand *>::iterator E) {
991 OutputSection *Sec = cast<OutputSectionCommand>(*E)->Sec;975 OutputSection *Sec = cast<OutputSection>(*E);
992976
993 // Find the first element that has as close a rank as possible.977 // Find the first element that has as close a rank as possible.
994 auto I = std::max_element(B, E, [=](BaseCommand *A, BaseCommand *B) {978 auto I = std::max_element(B, E, [=](BaseCommand *A, BaseCommand *B) {
...@@ -1000,44 +984,84 @@ findOrphanPos(std::vector<BaseCommand *>::iterator B,...@@ -1000,44 +984,84 @@ findOrphanPos(std::vector<BaseCommand *>::iterator B,
1000 // Consider all existing sections with the same proximity.984 // Consider all existing sections with the same proximity.
1001 int Proximity = getRankProximity(Sec, *I);985 int Proximity = getRankProximity(Sec, *I);
1002 for (; I != E; ++I) {986 for (; I != E; ++I) {
1003 auto *Cmd = dyn_cast<OutputSectionCommand>(*I);987 auto *CurSec = dyn_cast<OutputSection>(*I);
1004 if (!Cmd || !Cmd->Sec)988 if (!CurSec || !CurSec->Live)
1005 continue;989 continue;
1006 if (getRankProximity(Sec, Cmd->Sec) != Proximity ||990 if (getRankProximity(Sec, CurSec) != Proximity ||
1007 Sec->SortRank < Cmd->Sec->SortRank)991 Sec->SortRank < CurSec->SortRank)
1008 break;992 break;
1009 }993 }
1010 auto J = std::find_if(994
1011 llvm::make_reverse_iterator(I), llvm::make_reverse_iterator(B),995 auto IsLiveSection = [](BaseCommand *Cmd) {
1012 [](BaseCommand *Cmd) { return isa<OutputSectionCommand>(Cmd); });996 auto *OS = dyn_cast<OutputSection>(Cmd);
997 return OS && OS->Live;
998 };
999
1000 auto J = std::find_if(llvm::make_reverse_iterator(I),
1001 llvm::make_reverse_iterator(B), IsLiveSection);
1013 I = J.base();1002 I = J.base();
1003
1004 // As a special case, if the orphan section is the last section, put
1005 // it at the very end, past any other commands.
1006 // This matches bfd's behavior and is convenient when the linker script fully
1007 // specifies the start of the file, but doesn't care about the end (the non
1008 // alloc sections for example).
1009 auto NextSec = std::find_if(I, E, IsLiveSection);
1010 if (NextSec == E)
1011 return E;
1012
1014 while (I != E && shouldSkip(*I))1013 while (I != E && shouldSkip(*I))
1015 ++I;1014 ++I;
1016 return I;1015 return I;
1017}1016}
10181017
1018// If no layout was provided by linker script, we want to apply default
1019// sorting for special input sections and handle --symbol-ordering-file.
1020template <class ELFT> void Writer<ELFT>::sortInputSections() {
1021 assert(!Script->HasSectionsCommand);
1022
1023 // Sort input sections by priority using the list provided
1024 // by --symbol-ordering-file.
1025 DenseMap<SectionBase *, int> Order = buildSectionOrder();
1026 if (!Order.empty())
1027 for (BaseCommand *Base : Script->SectionCommands)
1028 if (auto *Sec = dyn_cast<OutputSection>(Base))
1029 if (Sec->Live)
1030 Sec->sort([&](InputSectionBase *S) { return Order.lookup(S); });
1031
1032 // Sort input sections by section name suffixes for
1033 // __attribute__((init_priority(N))).
1034 if (OutputSection *Sec = findSection(".init_array"))
1035 Sec->sortInitFini();
1036 if (OutputSection *Sec = findSection(".fini_array"))
1037 Sec->sortInitFini();
1038
1039 // Sort input sections by the special rule for .ctors and .dtors.
1040 if (OutputSection *Sec = findSection(".ctors"))
1041 Sec->sortCtorsDtors();
1042 if (OutputSection *Sec = findSection(".dtors"))
1043 Sec->sortCtorsDtors();
1044}
1045
1019template <class ELFT> void Writer<ELFT>::sortSections() {1046template <class ELFT> void Writer<ELFT>::sortSections() {
1020 if (Script->Opt.HasSections)1047 Script->adjustSectionsBeforeSorting();
1021 Script->adjustSectionsBeforeSorting();
10221048
1023 // Don't sort if using -r. It is not necessary and we want to preserve the1049 // Don't sort if using -r. It is not necessary and we want to preserve the
1024 // relative order for SHF_LINK_ORDER sections.1050 // relative order for SHF_LINK_ORDER sections.
1025 if (Config->Relocatable)1051 if (Config->Relocatable)
1026 return;1052 return;
10271053
1028 for (BaseCommand *Base : Script->Opt.Commands)1054 for (BaseCommand *Base : Script->SectionCommands)
1029 if (auto *Cmd = dyn_cast<OutputSectionCommand>(Base))1055 if (auto *Sec = dyn_cast<OutputSection>(Base))
1030 if (OutputSection *Sec = Cmd->Sec)1056 Sec->SortRank = getSectionRank(Sec);
1031 Sec->SortRank = getSectionRank(Sec);1057
10321058 if (!Script->HasSectionsCommand) {
1033 if (!Script->Opt.HasSections) {1059 sortInputSections();
1034 // We know that all the OutputSectionCommands are contiguous in1060
1035 // this case.1061 // We know that all the OutputSections are contiguous in this case.
1036 auto E = Script->Opt.Commands.end();1062 auto E = Script->SectionCommands.end();
1037 auto I = Script->Opt.Commands.begin();1063 auto I = Script->SectionCommands.begin();
1038 auto IsSection = [](BaseCommand *Base) {1064 auto IsSection = [](BaseCommand *Base) { return isa<OutputSection>(Base); };
1039 return isa<OutputSectionCommand>(Base);
1040 };
1041 I = std::find_if(I, E, IsSection);1065 I = std::find_if(I, E, IsSection);
1042 E = std::find_if(llvm::make_reverse_iterator(E),1066 E = std::find_if(llvm::make_reverse_iterator(E),
1043 llvm::make_reverse_iterator(I), IsSection)1067 llvm::make_reverse_iterator(I), IsSection)
...@@ -1077,7 +1101,7 @@ template <class ELFT> void Writer<ELFT>::sortSections() {...@@ -1077,7 +1101,7 @@ template <class ELFT> void Writer<ELFT>::sortSections() {
1077 // a PT_LOAD.1101 // a PT_LOAD.
1078 //1102 //
1079 // There is some ambiguity as to where exactly a new entry should be1103 // There is some ambiguity as to where exactly a new entry should be
1080 // inserted, because Opt.Commands contains not only output section1104 // inserted, because Commands contains not only output section
1081 // commands but also other types of commands such as symbol assignment1105 // commands but also other types of commands such as symbol assignment
1082 // expressions. There's no correct answer here due to the lack of the1106 // expressions. There's no correct answer here due to the lack of the
1083 // formal specification of the linker script. We use heuristics to1107 // formal specification of the linker script. We use heuristics to
...@@ -1085,11 +1109,11 @@ template <class ELFT> void Writer<ELFT>::sortSections() {...@@ -1085,11 +1109,11 @@ template <class ELFT> void Writer<ELFT>::sortSections() {
1085 // after another commands. For the details, look at shouldSkip1109 // after another commands. For the details, look at shouldSkip
1086 // function.1110 // function.
10871111
1088 auto I = Script->Opt.Commands.begin();1112 auto I = Script->SectionCommands.begin();
1089 auto E = Script->Opt.Commands.end();1113 auto E = Script->SectionCommands.end();
1090 auto NonScriptI = std::find_if(I, E, [](BaseCommand *Base) {1114 auto NonScriptI = std::find_if(I, E, [](BaseCommand *Base) {
1091 if (auto *Cmd = dyn_cast<OutputSectionCommand>(Base))1115 if (auto *Sec = dyn_cast<OutputSection>(Base))
1092 return Cmd->Sec && Cmd->Sec->SectionIndex == INT_MAX;1116 return Sec->Live && Sec->SectionIndex == INT_MAX;
1093 return false;1117 return false;
1094 });1118 });
10951119
...@@ -1109,13 +1133,13 @@ template <class ELFT> void Writer<ELFT>::sortSections() {...@@ -1109,13 +1133,13 @@ template <class ELFT> void Writer<ELFT>::sortSections() {
11091133
1110 while (NonScriptI != E) {1134 while (NonScriptI != E) {
1111 auto Pos = findOrphanPos<ELFT>(I, NonScriptI);1135 auto Pos = findOrphanPos<ELFT>(I, NonScriptI);
1112 OutputSection *Orphan = cast<OutputSectionCommand>(*NonScriptI)->Sec;1136 OutputSection *Orphan = cast<OutputSection>(*NonScriptI);
11131137
1114 // As an optimization, find all sections with the same sort rank1138 // As an optimization, find all sections with the same sort rank
1115 // and insert them with one rotate.1139 // and insert them with one rotate.
1116 unsigned Rank = Orphan->SortRank;1140 unsigned Rank = Orphan->SortRank;
1117 auto End = std::find_if(NonScriptI + 1, E, [=](BaseCommand *Cmd) {1141 auto End = std::find_if(NonScriptI + 1, E, [=](BaseCommand *Cmd) {
1118 return cast<OutputSectionCommand>(Cmd)->Sec->SortRank != Rank;1142 return cast<OutputSection>(Cmd)->SortRank != Rank;
1119 });1143 });
1120 std::rotate(Pos, NonScriptI, End);1144 std::rotate(Pos, NonScriptI, End);
1121 NonScriptI = End;1145 NonScriptI = End;
...@@ -1124,6 +1148,139 @@ template <class ELFT> void Writer<ELFT>::sortSections() {...@@ -1124,6 +1148,139 @@ template <class ELFT> void Writer<ELFT>::sortSections() {
1124 Script->adjustSectionsAfterSorting();1148 Script->adjustSectionsAfterSorting();
1125}1149}
11261150
1151static bool compareByFilePosition(InputSection *A, InputSection *B) {
1152 // Synthetic, i. e. a sentinel section, should go last.
1153 if (A->kind() == InputSectionBase::Synthetic ||
1154 B->kind() == InputSectionBase::Synthetic)
1155 return A->kind() != InputSectionBase::Synthetic;
1156 InputSection *LA = A->getLinkOrderDep();
1157 InputSection *LB = B->getLinkOrderDep();
1158 OutputSection *AOut = LA->getParent();
1159 OutputSection *BOut = LB->getParent();
1160 if (AOut != BOut)
1161 return AOut->SectionIndex < BOut->SectionIndex;
1162 return LA->OutSecOff < LB->OutSecOff;
1163}
1164
1165// This function is used by the --merge-exidx-entries to detect duplicate
1166// .ARM.exidx sections. It is Arm only.
1167//
1168// The .ARM.exidx section is of the form:
1169// | PREL31 offset to function | Unwind instructions for function |
1170// where the unwind instructions are either a small number of unwind
1171// instructions inlined into the table entry, the special CANT_UNWIND value of
1172// 0x1 or a PREL31 offset into a .ARM.extab Section that contains unwind
1173// instructions.
1174//
1175// We return true if all the unwind instructions in the .ARM.exidx entries of
1176// Cur can be merged into the last entry of Prev.
1177static bool isDuplicateArmExidxSec(InputSection *Prev, InputSection *Cur) {
1178
1179 // References to .ARM.Extab Sections have bit 31 clear and are not the
1180 // special EXIDX_CANTUNWIND bit-pattern.
1181 auto IsExtabRef = [](uint32_t Unwind) {
1182 return (Unwind & 0x80000000) == 0 && Unwind != 0x1;
1183 };
1184
1185 struct ExidxEntry {
1186 ulittle32_t Fn;
1187 ulittle32_t Unwind;
1188 };
1189
1190 // Get the last table Entry from the previous .ARM.exidx section.
1191 const ExidxEntry &PrevEntry = *reinterpret_cast<const ExidxEntry *>(
1192 Prev->Data.data() + Prev->getSize() - sizeof(ExidxEntry));
1193 if (IsExtabRef(PrevEntry.Unwind))
1194 return false;
1195
1196 // We consider the unwind instructions of an .ARM.exidx table entry
1197 // a duplicate if the previous unwind instructions if:
1198 // - Both are the special EXIDX_CANTUNWIND.
1199 // - Both are the same inline unwind instructions.
1200 // We do not attempt to follow and check links into .ARM.extab tables as
1201 // consecutive identical entries are rare and the effort to check that they
1202 // are identical is high.
1203
1204 if (isa<SyntheticSection>(Cur))
1205 // Exidx sentinel section has implicit EXIDX_CANTUNWIND;
1206 return PrevEntry.Unwind == 0x1;
1207
1208 ArrayRef<const ExidxEntry> Entries(
1209 reinterpret_cast<const ExidxEntry *>(Cur->Data.data()),
1210 Cur->getSize() / sizeof(ExidxEntry));
1211 for (const ExidxEntry &Entry : Entries)
1212 if (IsExtabRef(Entry.Unwind) || Entry.Unwind != PrevEntry.Unwind)
1213 return false;
1214 // All table entries in this .ARM.exidx Section can be merged into the
1215 // previous Section.
1216 return true;
1217}
1218
1219template <class ELFT> void Writer<ELFT>::resolveShfLinkOrder() {
1220 for (OutputSection *Sec : OutputSections) {
1221 if (!(Sec->Flags & SHF_LINK_ORDER))
1222 continue;
1223
1224 // Link order may be distributed across several InputSectionDescriptions
1225 // but sort must consider them all at once.
1226 std::vector<InputSection **> ScriptSections;
1227 std::vector<InputSection *> Sections;
1228 for (BaseCommand *Base : Sec->SectionCommands) {
1229 if (auto *ISD = dyn_cast<InputSectionDescription>(Base)) {
1230 for (InputSection *&IS : ISD->Sections) {
1231 ScriptSections.push_back(&IS);
1232 Sections.push_back(IS);
1233 }
1234 }
1235 }
1236 std::stable_sort(Sections.begin(), Sections.end(), compareByFilePosition);
1237
1238 if (!Config->Relocatable && Config->EMachine == EM_ARM &&
1239 Sec->Type == SHT_ARM_EXIDX) {
1240
1241 if (!Sections.empty() && isa<ARMExidxSentinelSection>(Sections.back())) {
1242 assert(Sections.size() >= 2 &&
1243 "We should create a sentinel section only if there are "
1244 "alive regular exidx sections.");
1245 // The last executable section is required to fill the sentinel.
1246 // Remember it here so that we don't have to find it again.
1247 auto *Sentinel = cast<ARMExidxSentinelSection>(Sections.back());
1248 Sentinel->Highest = Sections[Sections.size() - 2]->getLinkOrderDep();
1249 }
1250
1251 if (Config->MergeArmExidx) {
1252 // The EHABI for the Arm Architecture permits consecutive identical
1253 // table entries to be merged. We use a simple implementation that
1254 // removes a .ARM.exidx Input Section if it can be merged into the
1255 // previous one. This does not require any rewriting of InputSection
1256 // contents but misses opportunities for fine grained deduplication
1257 // where only a subset of the InputSection contents can be merged.
1258 int Cur = 1;
1259 int Prev = 0;
1260 // The last one is a sentinel entry which should not be removed.
1261 int N = Sections.size() - 1;
1262 while (Cur < N) {
1263 if (isDuplicateArmExidxSec(Sections[Prev], Sections[Cur]))
1264 Sections[Cur] = nullptr;
1265 else
1266 Prev = Cur;
1267 ++Cur;
1268 }
1269 }
1270 }
1271
1272 for (int I = 0, N = Sections.size(); I < N; ++I)
1273 *ScriptSections[I] = Sections[I];
1274
1275 // Remove the Sections we marked as duplicate earlier.
1276 for (BaseCommand *Base : Sec->SectionCommands)
1277 if (auto *ISD = dyn_cast<InputSectionDescription>(Base))
1278 ISD->Sections.erase(
1279 std::remove(ISD->Sections.begin(), ISD->Sections.end(), nullptr),
1280 ISD->Sections.end());
1281 }
1282}
1283
1127static void applySynthetic(const std::vector<SyntheticSection *> &Sections,1284static void applySynthetic(const std::vector<SyntheticSection *> &Sections,
1128 std::function<void(SyntheticSection *)> Fn) {1285 std::function<void(SyntheticSection *)> Fn) {
1129 for (SyntheticSection *SS : Sections)1286 for (SyntheticSection *SS : Sections)
...@@ -1131,10 +1288,18 @@ static void applySynthetic(const std::vector<SyntheticSection *> &Sections,...@@ -1131,10 +1288,18 @@ static void applySynthetic(const std::vector<SyntheticSection *> &Sections,
1131 Fn(SS);1288 Fn(SS);
1132}1289}
11331290
1134// We need to add input synthetic sections early in createSyntheticSections()1291// In order to allow users to manipulate linker-synthesized sections,
1135// to make them visible from linkescript side. But not all sections are always1292// we had to add synthetic sections to the input section list early,
1136// required to be in output. For example we don't need dynamic section content1293// even before we make decisions whether they are needed. This allows
1137// sometimes. This function filters out such unused sections from the output.1294// users to write scripts like this: ".mygot : { .got }".
1295//
1296// Doing it has an unintended side effects. If it turns out that we
1297// don't need a .got (for example) at all because there's no
1298// relocation that needs a .got, we don't want to emit .got.
1299//
1300// To deal with the above problem, this function is called after
1301// scanRelocations is called to remove synthetic sections that turn
1302// out to be empty.
1138static void removeUnusedSyntheticSections() {1303static void removeUnusedSyntheticSections() {
1139 // All input synthetic sections that can be empty are placed after1304 // All input synthetic sections that can be empty are placed after
1140 // all regular ones. We iterate over them all and exit at first1305 // all regular ones. We iterate over them all and exit at first
...@@ -1146,55 +1311,73 @@ static void removeUnusedSyntheticSections() {...@@ -1146,55 +1311,73 @@ static void removeUnusedSyntheticSections() {
1146 OutputSection *OS = SS->getParent();1311 OutputSection *OS = SS->getParent();
1147 if (!SS->empty() || !OS)1312 if (!SS->empty() || !OS)
1148 continue;1313 continue;
1149 if ((SS == InX::Got || SS == InX::MipsGot) && ElfSym::GlobalOffsetTable)
1150 continue;
11511314
1152 OutputSectionCommand *Cmd = Script->getCmd(OS);1315 std::vector<BaseCommand *>::iterator Empty = OS->SectionCommands.end();
1153 std::vector<BaseCommand *>::iterator Empty = Cmd->Commands.end();1316 for (auto I = OS->SectionCommands.begin(), E = OS->SectionCommands.end();
1154 for (auto I = Cmd->Commands.begin(), E = Cmd->Commands.end(); I != E; ++I) {1317 I != E; ++I) {
1155 BaseCommand *B = *I;1318 BaseCommand *B = *I;
1156 if (auto *ISD = dyn_cast<InputSectionDescription>(B)) {1319 if (auto *ISD = dyn_cast<InputSectionDescription>(B)) {
1157 auto P = std::find(ISD->Sections.begin(), ISD->Sections.end(), SS);1320 llvm::erase_if(ISD->Sections,
1158 if (P != ISD->Sections.end())1321 [=](InputSection *IS) { return IS == SS; });
1159 ISD->Sections.erase(P);
1160 if (ISD->Sections.empty())1322 if (ISD->Sections.empty())
1161 Empty = I;1323 Empty = I;
1162 }1324 }
1163 }1325 }
1164 if (Empty != Cmd->Commands.end())1326 if (Empty != OS->SectionCommands.end())
1165 Cmd->Commands.erase(Empty);1327 OS->SectionCommands.erase(Empty);
11661328
1167 // If there are no other sections in the output section, remove it from the1329 // If there are no other sections in the output section, remove it from the
1168 // output.1330 // output.
1169 if (Cmd->Commands.empty()) {1331 if (OS->SectionCommands.empty())
1170 // Also remove script commands matching the output section.1332 OS->Live = false;
1171 auto &Cmds = Script->Opt.Commands;
1172 auto I = std::remove_if(Cmds.begin(), Cmds.end(), [&](BaseCommand *Cmd) {
1173 if (auto *OSCmd = dyn_cast<OutputSectionCommand>(Cmd))
1174 return OSCmd->Sec == OS;
1175 return false;
1176 });
1177 Cmds.erase(I, Cmds.end());
1178 }
1179 }1333 }
1180}1334}
11811335
1336// Returns true if a symbol can be replaced at load-time by a symbol
1337// with the same name defined in other ELF executable or DSO.
1338static bool computeIsPreemptible(const Symbol &B) {
1339 assert(!B.isLocal());
1340 // Only symbols that appear in dynsym can be preempted.
1341 if (!B.includeInDynsym())
1342 return false;
1343
1344 // Only default visibility symbols can be preempted.
1345 if (B.Visibility != STV_DEFAULT)
1346 return false;
1347
1348 // At this point copy relocations have not been created yet, so any
1349 // symbol that is not defined locally is preemptible.
1350 if (!B.isDefined())
1351 return true;
1352
1353 // If we have a dynamic list it specifies which local symbols are preemptible.
1354 if (Config->HasDynamicList)
1355 return false;
1356
1357 if (!Config->Shared)
1358 return false;
1359
1360 // -Bsymbolic means that definitions are not preempted.
1361 if (Config->Bsymbolic || (Config->BsymbolicFunctions && B.isFunc()))
1362 return false;
1363 return true;
1364}
1365
1182// Create output section objects and add them to OutputSections.1366// Create output section objects and add them to OutputSections.
1183template <class ELFT> void Writer<ELFT>::finalizeSections() {1367template <class ELFT> void Writer<ELFT>::finalizeSections() {
1184 Out::DebugInfo = findSectionInScript(".debug_info");1368 Out::DebugInfo = findSection(".debug_info");
1185 Out::PreinitArray = findSectionInScript(".preinit_array");1369 Out::PreinitArray = findSection(".preinit_array");
1186 Out::InitArray = findSectionInScript(".init_array");1370 Out::InitArray = findSection(".init_array");
1187 Out::FiniArray = findSectionInScript(".fini_array");1371 Out::FiniArray = findSection(".fini_array");
11881372
1189 // The linker needs to define SECNAME_start, SECNAME_end and SECNAME_stop1373 // The linker needs to define SECNAME_start, SECNAME_end and SECNAME_stop
1190 // symbols for sections, so that the runtime can get the start and end1374 // symbols for sections, so that the runtime can get the start and end
1191 // addresses of each section by section name. Add such symbols.1375 // addresses of each section by section name. Add such symbols.
1192 if (!Config->Relocatable) {1376 if (!Config->Relocatable) {
1193 addStartEndSymbols();1377 addStartEndSymbols();
1194 for (BaseCommand *Base : Script->Opt.Commands)1378 for (BaseCommand *Base : Script->SectionCommands)
1195 if (auto *Cmd = dyn_cast<OutputSectionCommand>(Base))1379 if (auto *Sec = dyn_cast<OutputSection>(Base))
1196 if (Cmd->Sec)1380 addStartStopSymbols(Sec);
1197 addStartStopSymbols(Cmd->Sec);
1198 }1381 }
11991382
1200 // Add _DYNAMIC symbol. Unlike GNU gold, our _DYNAMIC symbol has no type.1383 // Add _DYNAMIC symbol. Unlike GNU gold, our _DYNAMIC symbol has no type.
...@@ -1202,7 +1385,9 @@ template <class ELFT> void Writer<ELFT>::finalizeSections() {...@@ -1202,7 +1385,9 @@ template <class ELFT> void Writer<ELFT>::finalizeSections() {
1202 // Even the author of gold doesn't remember why gold behaves that way.1385 // Even the author of gold doesn't remember why gold behaves that way.
1203 // https://sourceware.org/ml/binutils/2002-03/msg00360.html1386 // https://sourceware.org/ml/binutils/2002-03/msg00360.html
1204 if (InX::DynSymTab)1387 if (InX::DynSymTab)
1205 addRegular<ELFT>("_DYNAMIC", InX::Dynamic, 0);1388 Symtab->addRegular("_DYNAMIC", STV_HIDDEN, STT_NOTYPE, 0 /*Value*/,
1389 /*Size=*/0, STB_WEAK, InX::Dynamic,
1390 /*File=*/nullptr);
12061391
1207 // Define __rel[a]_iplt_{start,end} symbols if needed.1392 // Define __rel[a]_iplt_{start,end} symbols if needed.
1208 addRelIpltSymbols();1393 addRelIpltSymbols();
...@@ -1210,12 +1395,16 @@ template <class ELFT> void Writer<ELFT>::finalizeSections() {...@@ -1210,12 +1395,16 @@ template <class ELFT> void Writer<ELFT>::finalizeSections() {
1210 // This responsible for splitting up .eh_frame section into1395 // This responsible for splitting up .eh_frame section into
1211 // pieces. The relocation scan uses those pieces, so this has to be1396 // pieces. The relocation scan uses those pieces, so this has to be
1212 // earlier.1397 // earlier.
1213 applySynthetic({In<ELFT>::EhFrame},1398 applySynthetic({InX::EhFrame},
1214 [](SyntheticSection *SS) { SS->finalizeContents(); });1399 [](SyntheticSection *SS) { SS->finalizeContents(); });
12151400
1401 for (Symbol *S : Symtab->getSymbols())
1402 S->IsPreemptible |= computeIsPreemptible(*S);
1403
1216 // Scan relocations. This must be done after every symbol is declared so that1404 // Scan relocations. This must be done after every symbol is declared so that
1217 // we can correctly decide if a dynamic relocation is needed.1405 // we can correctly decide if a dynamic relocation is needed.
1218 forEachRelSec(scanRelocations<ELFT>);1406 if (!Config->Relocatable)
1407 forEachRelSec(scanRelocations<ELFT>);
12191408
1220 if (InX::Plt && !InX::Plt->empty())1409 if (InX::Plt && !InX::Plt->empty())
1221 InX::Plt->addSymbols();1410 InX::Plt->addSymbols();
...@@ -1224,42 +1413,40 @@ template <class ELFT> void Writer<ELFT>::finalizeSections() {...@@ -1224,42 +1413,40 @@ template <class ELFT> void Writer<ELFT>::finalizeSections() {
12241413
1225 // Now that we have defined all possible global symbols including linker-1414 // Now that we have defined all possible global symbols including linker-
1226 // synthesized ones. Visit all symbols to give the finishing touches.1415 // synthesized ones. Visit all symbols to give the finishing touches.
1227 for (Symbol *S : Symtab<ELFT>::X->getSymbols()) {1416 for (Symbol *Sym : Symtab->getSymbols()) {
1228 SymbolBody *Body = S->body();1417 if (!includeInSymtab(*Sym))
1229
1230 if (!includeInSymtab(*Body))
1231 continue;1418 continue;
1232 if (InX::SymTab)1419 if (InX::SymTab)
1233 InX::SymTab->addSymbol(Body);1420 InX::SymTab->addSymbol(Sym);
12341421
1235 if (InX::DynSymTab && S->includeInDynsym()) {1422 if (InX::DynSymTab && Sym->includeInDynsym()) {
1236 InX::DynSymTab->addSymbol(Body);1423 InX::DynSymTab->addSymbol(Sym);
1237 if (auto *SS = dyn_cast<SharedSymbol>(Body))1424 if (auto *SS = dyn_cast<SharedSymbol>(Sym))
1238 if (cast<SharedFile<ELFT>>(SS->File)->isNeeded())1425 if (cast<SharedFile<ELFT>>(Sym->File)->IsNeeded)
1239 In<ELFT>::VerNeed->addSymbol(SS);1426 In<ELFT>::VerNeed->addSymbol(SS);
1240 }1427 }
1241 }1428 }
12421429
1243 // Do not proceed if there was an undefined symbol.1430 // Do not proceed if there was an undefined symbol.
1244 if (ErrorCount)1431 if (errorCount())
1245 return;1432 return;
12461433
1247 addPredefinedSections();
1248 removeUnusedSyntheticSections();1434 removeUnusedSyntheticSections();
12491435
1250 sortSections();1436 sortSections();
1437 Script->removeEmptyCommands();
12511438
1252 // Now that we have the final list, create a list of all the1439 // Now that we have the final list, create a list of all the
1253 // OutputSectionCommands for convenience.1440 // OutputSections for convenience.
1254 for (BaseCommand *Base : Script->Opt.Commands)1441 for (BaseCommand *Base : Script->SectionCommands)
1255 if (auto *Cmd = dyn_cast<OutputSectionCommand>(Base))1442 if (auto *Sec = dyn_cast<OutputSection>(Base))
1256 OutputSectionCommands.push_back(Cmd);1443 OutputSections.push_back(Sec);
12571444
1258 // Prefer command line supplied address over other constraints.1445 // Prefer command line supplied address over other constraints.
1259 for (OutputSectionCommand *Cmd : OutputSectionCommands) {1446 for (OutputSection *Sec : OutputSections) {
1260 auto I = Config->SectionStartMap.find(Cmd->Name);1447 auto I = Config->SectionStartMap.find(Sec->Name);
1261 if (I != Config->SectionStartMap.end())1448 if (I != Config->SectionStartMap.end())
1262 Cmd->AddrExpr = [=] { return I->second; };1449 Sec->AddrExpr = [=] { return I->second; };
1263 }1450 }
12641451
1265 // This is a bit of a hack. A value of 0 means undef, so we set it1452 // This is a bit of a hack. A value of 0 means undef, so we set it
...@@ -1268,8 +1455,7 @@ template <class ELFT> void Writer<ELFT>::finalizeSections() {...@@ -1268,8 +1455,7 @@ template <class ELFT> void Writer<ELFT>::finalizeSections() {
1268 Out::ElfHeader->SectionIndex = 1;1455 Out::ElfHeader->SectionIndex = 1;
12691456
1270 unsigned I = 1;1457 unsigned I = 1;
1271 for (OutputSectionCommand *Cmd : OutputSectionCommands) {1458 for (OutputSection *Sec : OutputSections) {
1272 OutputSection *Sec = Cmd->Sec;
1273 Sec->SectionIndex = I++;1459 Sec->SectionIndex = I++;
1274 Sec->ShName = InX::ShStrTab->addString(Sec->Name);1460 Sec->ShName = InX::ShStrTab->addString(Sec->Name);
1275 }1461 }
...@@ -1283,66 +1469,64 @@ template <class ELFT> void Writer<ELFT>::finalizeSections() {...@@ -1283,66 +1469,64 @@ template <class ELFT> void Writer<ELFT>::finalizeSections() {
1283 Out::ProgramHeaders->Size = sizeof(Elf_Phdr) * Phdrs.size();1469 Out::ProgramHeaders->Size = sizeof(Elf_Phdr) * Phdrs.size();
1284 }1470 }
12851471
1472 // Some symbols are defined in term of program headers. Now that we
1473 // have the headers, we can find out which sections they point to.
1474 setReservedSymbolSections();
1475
1286 // Dynamic section must be the last one in this list and dynamic1476 // Dynamic section must be the last one in this list and dynamic
1287 // symbol table section (DynSymTab) must be the first one.1477 // symbol table section (DynSymTab) must be the first one.
1288 applySynthetic({InX::DynSymTab, InX::Bss, InX::BssRelRo,1478 applySynthetic(
1289 InX::GnuHashTab, In<ELFT>::HashTab, InX::SymTab,1479 {InX::DynSymTab, InX::Bss, InX::BssRelRo, InX::GnuHashTab,
1290 InX::ShStrTab, InX::StrTab, In<ELFT>::VerDef,1480 InX::HashTab, InX::SymTab, InX::ShStrTab, InX::StrTab,
1291 InX::DynStrTab, InX::GdbIndex, InX::Got,1481 In<ELFT>::VerDef, InX::DynStrTab, InX::Got, InX::MipsGot,
1292 InX::MipsGot, InX::IgotPlt, InX::GotPlt,1482 InX::IgotPlt, InX::GotPlt, InX::RelaDyn, InX::RelaIplt,
1293 In<ELFT>::RelaDyn, In<ELFT>::RelaIplt, In<ELFT>::RelaPlt,1483 InX::RelaPlt, InX::Plt, InX::Iplt, InX::EhFrameHdr,
1294 InX::Plt, InX::Iplt, In<ELFT>::EhFrameHdr,1484 In<ELFT>::VerSym, In<ELFT>::VerNeed, InX::Dynamic},
1295 In<ELFT>::VerSym, In<ELFT>::VerNeed, InX::Dynamic},1485 [](SyntheticSection *SS) { SS->finalizeContents(); });
1296 [](SyntheticSection *SS) { SS->finalizeContents(); });1486
1487 if (!Script->HasSectionsCommand && !Config->Relocatable)
1488 fixSectionAlignments();
1489
1490 // After link order processing .ARM.exidx sections can be deduplicated, which
1491 // needs to be resolved before any other address dependent operation.
1492 resolveShfLinkOrder();
12971493
1298 // Some architectures use small displacements for jump instructions.1494 // Some architectures need to generate content that depends on the address
1299 // It is linker's responsibility to create thunks containing long1495 // of InputSections. For example some architectures use small displacements
1300 // jump instructions if jump targets are too far. Create thunks.1496 // for jump instructions that is is the linker's responsibility for creating
1301 if (Target->NeedsThunks) {1497 // range extension thunks for. As the generation of the content may also
1302 // FIXME: only ARM Interworking and Mips LA25 Thunks are implemented,1498 // alter InputSection addresses we must converge to a fixed point.
1303 // these1499 if (Target->NeedsThunks || Config->AndroidPackDynRelocs) {
1304 // do not require address information. To support range extension Thunks
1305 // we need to assign addresses so that we can tell if jump instructions
1306 // are out of range. This will need to turn into a loop that converges
1307 // when no more Thunks are added
1308 ThunkCreator TC;1500 ThunkCreator TC;
1309 Script->assignAddresses();1501 AArch64Err843419Patcher A64P;
1310 if (TC.createThunks(OutputSectionCommands)) {1502 bool Changed;
1311 applySynthetic({InX::MipsGot},1503 do {
1312 [](SyntheticSection *SS) { SS->updateAllocSize(); });1504 Script->assignAddresses();
1313 if (TC.createThunks(OutputSectionCommands))1505 Changed = false;
1314 fatal("All non-range thunks should be created in first call");1506 if (Target->NeedsThunks)
1315 }1507 Changed |= TC.createThunks(OutputSections);
1508 if (Config->FixCortexA53Errata843419) {
1509 if (Changed)
1510 Script->assignAddresses();
1511 Changed |= A64P.createFixes();
1512 }
1513 if (InX::MipsGot)
1514 InX::MipsGot->updateAllocSize();
1515 Changed |= InX::RelaDyn->updateAllocSize();
1516 } while (Changed);
1316 }1517 }
13171518
1318 // Fill other section headers. The dynamic table is finalized1519 // Fill other section headers. The dynamic table is finalized
1319 // at the end because some tags like RELSZ depend on result1520 // at the end because some tags like RELSZ depend on result
1320 // of finalizing other sections.1521 // of finalizing other sections.
1321 for (OutputSectionCommand *Cmd : OutputSectionCommands)1522 for (OutputSection *Sec : OutputSections)
1322 Cmd->finalize<ELFT>();1523 Sec->finalize<ELFT>();
13231524
1324 // createThunks may have added local symbols to the static symbol table1525 // createThunks may have added local symbols to the static symbol table
1325 applySynthetic({InX::SymTab, InX::ShStrTab, InX::StrTab},1526 applySynthetic({InX::SymTab},
1326 [](SyntheticSection *SS) { SS->postThunkContents(); });1527 [](SyntheticSection *SS) { SS->postThunkContents(); });
1327}1528}
13281529
1329template <class ELFT> void Writer<ELFT>::addPredefinedSections() {
1330 // ARM ABI requires .ARM.exidx to be terminated by some piece of data.
1331 // We have the terminater synthetic section class. Add that at the end.
1332 OutputSectionCommand *Cmd = findSectionCommand(".ARM.exidx");
1333 if (!Cmd || !Cmd->Sec || Config->Relocatable)
1334 return;
1335
1336 auto *Sentinel = make<ARMExidxSentinelSection>();
1337 Cmd->Sec->addSection(Sentinel);
1338 // Add the sentinel to the last of these too.
1339 auto ISD = std::find_if(Cmd->Commands.rbegin(), Cmd->Commands.rend(),
1340 [](const BaseCommand *Base) {
1341 return isa<InputSectionDescription>(Base);
1342 });
1343 cast<InputSectionDescription>(*ISD)->Sections.push_back(Sentinel);
1344}
1345
1346// The linker is expected to define SECNAME_start and SECNAME_end1530// The linker is expected to define SECNAME_start and SECNAME_end
1347// symbols for a few sections. This function defines them.1531// symbols for a few sections. This function defines them.
1348template <class ELFT> void Writer<ELFT>::addStartEndSymbols() {1532template <class ELFT> void Writer<ELFT>::addStartEndSymbols() {
...@@ -1350,13 +1534,13 @@ template <class ELFT> void Writer<ELFT>::addStartEndSymbols() {...@@ -1350,13 +1534,13 @@ template <class ELFT> void Writer<ELFT>::addStartEndSymbols() {
1350 // These symbols resolve to the image base if the section does not exist.1534 // These symbols resolve to the image base if the section does not exist.
1351 // A special value -1 indicates end of the section.1535 // A special value -1 indicates end of the section.
1352 if (OS) {1536 if (OS) {
1353 addOptionalRegular<ELFT>(Start, OS, 0);1537 addOptionalRegular(Start, OS, 0);
1354 addOptionalRegular<ELFT>(End, OS, -1);1538 addOptionalRegular(End, OS, -1);
1355 } else {1539 } else {
1356 if (Config->Pic)1540 if (Config->Pic)
1357 OS = Out::ElfHeader;1541 OS = Out::ElfHeader;
1358 addOptionalRegular<ELFT>(Start, OS, 0);1542 addOptionalRegular(Start, OS, 0);
1359 addOptionalRegular<ELFT>(End, OS, 0);1543 addOptionalRegular(End, OS, 0);
1360 }1544 }
1361 };1545 };
13621546
...@@ -1364,7 +1548,7 @@ template <class ELFT> void Writer<ELFT>::addStartEndSymbols() {...@@ -1364,7 +1548,7 @@ template <class ELFT> void Writer<ELFT>::addStartEndSymbols() {
1364 Define("__init_array_start", "__init_array_end", Out::InitArray);1548 Define("__init_array_start", "__init_array_end", Out::InitArray);
1365 Define("__fini_array_start", "__fini_array_end", Out::FiniArray);1549 Define("__fini_array_start", "__fini_array_end", Out::FiniArray);
13661550
1367 if (OutputSection *Sec = findSectionInScript(".ARM.exidx"))1551 if (OutputSection *Sec = findSection(".ARM.exidx"))
1368 Define("__exidx_start", "__exidx_end", Sec);1552 Define("__exidx_start", "__exidx_end", Sec);
1369}1553}
13701554
...@@ -1378,24 +1562,8 @@ void Writer<ELFT>::addStartStopSymbols(OutputSection *Sec) {...@@ -1378,24 +1562,8 @@ void Writer<ELFT>::addStartStopSymbols(OutputSection *Sec) {
1378 StringRef S = Sec->Name;1562 StringRef S = Sec->Name;
1379 if (!isValidCIdentifier(S))1563 if (!isValidCIdentifier(S))
1380 return;1564 return;
1381 addOptionalRegular<ELFT>(Saver.save("__start_" + S), Sec, 0, STV_DEFAULT);1565 addOptionalRegular(Saver.save("__start_" + S), Sec, 0, STV_DEFAULT);
1382 addOptionalRegular<ELFT>(Saver.save("__stop_" + S), Sec, -1, STV_DEFAULT);1566 addOptionalRegular(Saver.save("__stop_" + S), Sec, -1, STV_DEFAULT);
1383}
1384
1385template <class ELFT>
1386OutputSectionCommand *Writer<ELFT>::findSectionCommand(StringRef Name) {
1387 for (BaseCommand *Base : Script->Opt.Commands)
1388 if (auto *Cmd = dyn_cast<OutputSectionCommand>(Base))
1389 if (Cmd->Name == Name)
1390 return Cmd;
1391 return nullptr;
1392}
1393
1394template <class ELFT>
1395OutputSection *Writer<ELFT>::findSectionInScript(StringRef Name) {
1396 if (OutputSectionCommand *Cmd = findSectionCommand(Name))
1397 return Cmd->Sec;
1398 return nullptr;
1399}1567}
14001568
1401static bool needsPtLoad(OutputSection *Sec) {1569static bool needsPtLoad(OutputSection *Sec) {
...@@ -1424,19 +1592,19 @@ static uint64_t computeFlags(uint64_t Flags) {...@@ -1424,19 +1592,19 @@ static uint64_t computeFlags(uint64_t Flags) {
14241592
1425// Decide which program headers to create and which sections to include in each1593// Decide which program headers to create and which sections to include in each
1426// one.1594// one.
1427template <class ELFT> std::vector<PhdrEntry> Writer<ELFT>::createPhdrs() {1595template <class ELFT> std::vector<PhdrEntry *> Writer<ELFT>::createPhdrs() {
1428 std::vector<PhdrEntry> Ret;1596 std::vector<PhdrEntry *> Ret;
1429 auto AddHdr = [&](unsigned Type, unsigned Flags) -> PhdrEntry * {1597 auto AddHdr = [&](unsigned Type, unsigned Flags) -> PhdrEntry * {
1430 Ret.emplace_back(Type, Flags);1598 Ret.push_back(make<PhdrEntry>(Type, Flags));
1431 return &Ret.back();1599 return Ret.back();
1432 };1600 };
14331601
1434 // The first phdr entry is PT_PHDR which describes the program header itself.1602 // The first phdr entry is PT_PHDR which describes the program header itself.
1435 AddHdr(PT_PHDR, PF_R)->add(Out::ProgramHeaders);1603 AddHdr(PT_PHDR, PF_R)->add(Out::ProgramHeaders);
14361604
1437 // PT_INTERP must be the second entry if exists.1605 // PT_INTERP must be the second entry if exists.
1438 if (OutputSection *Sec = findSectionInScript(".interp"))1606 if (OutputSection *Cmd = findSection(".interp"))
1439 AddHdr(PT_INTERP, Sec->getPhdrFlags())->add(Sec);1607 AddHdr(PT_INTERP, Cmd->getPhdrFlags())->add(Cmd);
14401608
1441 // Add the first PT_LOAD segment for regular output sections.1609 // Add the first PT_LOAD segment for regular output sections.
1442 uint64_t Flags = computeFlags(PF_R);1610 uint64_t Flags = computeFlags(PF_R);
...@@ -1446,8 +1614,7 @@ template <class ELFT> std::vector<PhdrEntry> Writer<ELFT>::createPhdrs() {...@@ -1446,8 +1614,7 @@ template <class ELFT> std::vector<PhdrEntry> Writer<ELFT>::createPhdrs() {
1446 Load->add(Out::ElfHeader);1614 Load->add(Out::ElfHeader);
1447 Load->add(Out::ProgramHeaders);1615 Load->add(Out::ProgramHeaders);
14481616
1449 for (OutputSectionCommand *Cmd : OutputSectionCommands) {1617 for (OutputSection *Sec : OutputSections) {
1450 OutputSection *Sec = Cmd->Sec;
1451 if (!(Sec->Flags & SHF_ALLOC))1618 if (!(Sec->Flags & SHF_ALLOC))
1452 break;1619 break;
1453 if (!needsPtLoad(Sec))1620 if (!needsPtLoad(Sec))
...@@ -1459,7 +1626,7 @@ template <class ELFT> std::vector<PhdrEntry> Writer<ELFT>::createPhdrs() {...@@ -1459,7 +1626,7 @@ template <class ELFT> std::vector<PhdrEntry> Writer<ELFT>::createPhdrs() {
1459 // different flags or is loaded at a discontiguous address using AT linker1626 // different flags or is loaded at a discontiguous address using AT linker
1460 // script command.1627 // script command.
1461 uint64_t NewFlags = computeFlags(Sec->getPhdrFlags());1628 uint64_t NewFlags = computeFlags(Sec->getPhdrFlags());
1462 if (Cmd->LMAExpr || Flags != NewFlags) {1629 if (Sec->LMAExpr || Flags != NewFlags) {
1463 Load = AddHdr(PT_LOAD, NewFlags);1630 Load = AddHdr(PT_LOAD, NewFlags);
1464 Flags = NewFlags;1631 Flags = NewFlags;
1465 }1632 }
...@@ -1468,14 +1635,12 @@ template <class ELFT> std::vector<PhdrEntry> Writer<ELFT>::createPhdrs() {...@@ -1468,14 +1635,12 @@ template <class ELFT> std::vector<PhdrEntry> Writer<ELFT>::createPhdrs() {
1468 }1635 }
14691636
1470 // Add a TLS segment if any.1637 // Add a TLS segment if any.
1471 PhdrEntry TlsHdr(PT_TLS, PF_R);1638 PhdrEntry *TlsHdr = make<PhdrEntry>(PT_TLS, PF_R);
1472 for (OutputSectionCommand *Cmd : OutputSectionCommands) {1639 for (OutputSection *Sec : OutputSections)
1473 OutputSection *Sec = Cmd->Sec;
1474 if (Sec->Flags & SHF_TLS)1640 if (Sec->Flags & SHF_TLS)
1475 TlsHdr.add(Sec);1641 TlsHdr->add(Sec);
1476 }1642 if (TlsHdr->FirstSec)
1477 if (TlsHdr.First)1643 Ret.push_back(TlsHdr);
1478 Ret.push_back(std::move(TlsHdr));
14791644
1480 // Add an entry for .dynamic.1645 // Add an entry for .dynamic.
1481 if (InX::DynSymTab)1646 if (InX::DynSymTab)
...@@ -1484,25 +1649,39 @@ template <class ELFT> std::vector<PhdrEntry> Writer<ELFT>::createPhdrs() {...@@ -1484,25 +1649,39 @@ template <class ELFT> std::vector<PhdrEntry> Writer<ELFT>::createPhdrs() {
14841649
1485 // PT_GNU_RELRO includes all sections that should be marked as1650 // PT_GNU_RELRO includes all sections that should be marked as
1486 // read-only by dynamic linker after proccessing relocations.1651 // read-only by dynamic linker after proccessing relocations.
1487 PhdrEntry RelRo(PT_GNU_RELRO, PF_R);1652 // Current dynamic loaders only support one PT_GNU_RELRO PHDR, give
1488 for (OutputSectionCommand *Cmd : OutputSectionCommands) {1653 // an error message if more than one PT_GNU_RELRO PHDR is required.
1489 OutputSection *Sec = Cmd->Sec;1654 PhdrEntry *RelRo = make<PhdrEntry>(PT_GNU_RELRO, PF_R);
1490 if (needsPtLoad(Sec) && isRelroSection(Sec))1655 bool InRelroPhdr = false;
1491 RelRo.add(Sec);1656 bool IsRelroFinished = false;
1657 for (OutputSection *Sec : OutputSections) {
1658 if (!needsPtLoad(Sec))
1659 continue;
1660 if (isRelroSection(Sec)) {
1661 InRelroPhdr = true;
1662 if (!IsRelroFinished)
1663 RelRo->add(Sec);
1664 else
1665 error("section: " + Sec->Name + " is not contiguous with other relro" +
1666 " sections");
1667 } else if (InRelroPhdr) {
1668 InRelroPhdr = false;
1669 IsRelroFinished = true;
1670 }
1492 }1671 }
1493 if (RelRo.First)1672 if (RelRo->FirstSec)
1494 Ret.push_back(std::move(RelRo));1673 Ret.push_back(RelRo);
14951674
1496 // PT_GNU_EH_FRAME is a special section pointing on .eh_frame_hdr.1675 // PT_GNU_EH_FRAME is a special section pointing on .eh_frame_hdr.
1497 if (!In<ELFT>::EhFrame->empty() && In<ELFT>::EhFrameHdr &&1676 if (!InX::EhFrame->empty() && InX::EhFrameHdr && InX::EhFrame->getParent() &&
1498 In<ELFT>::EhFrame->getParent() && In<ELFT>::EhFrameHdr->getParent())1677 InX::EhFrameHdr->getParent())
1499 AddHdr(PT_GNU_EH_FRAME, In<ELFT>::EhFrameHdr->getParent()->getPhdrFlags())1678 AddHdr(PT_GNU_EH_FRAME, InX::EhFrameHdr->getParent()->getPhdrFlags())
1500 ->add(In<ELFT>::EhFrameHdr->getParent());1679 ->add(InX::EhFrameHdr->getParent());
15011680
1502 // PT_OPENBSD_RANDOMIZE is an OpenBSD-specific feature. That makes1681 // PT_OPENBSD_RANDOMIZE is an OpenBSD-specific feature. That makes
1503 // the dynamic linker fill the segment with random data.1682 // the dynamic linker fill the segment with random data.
1504 if (OutputSection *Sec = findSectionInScript(".openbsd.randomdata"))1683 if (OutputSection *Cmd = findSection(".openbsd.randomdata"))
1505 AddHdr(PT_OPENBSD_RANDOMIZE, Sec->getPhdrFlags())->add(Sec);1684 AddHdr(PT_OPENBSD_RANDOMIZE, Cmd->getPhdrFlags())->add(Cmd);
15061685
1507 // PT_GNU_STACK is a special section to tell the loader to make the1686 // PT_GNU_STACK is a special section to tell the loader to make the
1508 // pages for the stack non-executable. If you really want an executable1687 // pages for the stack non-executable. If you really want an executable
...@@ -1524,10 +1703,9 @@ template <class ELFT> std::vector<PhdrEntry> Writer<ELFT>::createPhdrs() {...@@ -1524,10 +1703,9 @@ template <class ELFT> std::vector<PhdrEntry> Writer<ELFT>::createPhdrs() {
15241703
1525 // Create one PT_NOTE per a group of contiguous .note sections.1704 // Create one PT_NOTE per a group of contiguous .note sections.
1526 PhdrEntry *Note = nullptr;1705 PhdrEntry *Note = nullptr;
1527 for (OutputSectionCommand *Cmd : OutputSectionCommands) {1706 for (OutputSection *Sec : OutputSections) {
1528 OutputSection *Sec = Cmd->Sec;
1529 if (Sec->Type == SHT_NOTE) {1707 if (Sec->Type == SHT_NOTE) {
1530 if (!Note || Cmd->LMAExpr)1708 if (!Note || Sec->LMAExpr)
1531 Note = AddHdr(PT_NOTE, PF_R);1709 Note = AddHdr(PT_NOTE, PF_R);
1532 Note->add(Sec);1710 Note->add(Sec);
1533 } else {1711 } else {
...@@ -1538,18 +1716,18 @@ template <class ELFT> std::vector<PhdrEntry> Writer<ELFT>::createPhdrs() {...@@ -1538,18 +1716,18 @@ template <class ELFT> std::vector<PhdrEntry> Writer<ELFT>::createPhdrs() {
1538}1716}
15391717
1540template <class ELFT>1718template <class ELFT>
1541void Writer<ELFT>::addPtArmExid(std::vector<PhdrEntry> &Phdrs) {1719void Writer<ELFT>::addPtArmExid(std::vector<PhdrEntry *> &Phdrs) {
1542 if (Config->EMachine != EM_ARM)1720 if (Config->EMachine != EM_ARM)
1543 return;1721 return;
1544 auto I = llvm::find_if(OutputSectionCommands, [](OutputSectionCommand *Cmd) {1722 auto I = llvm::find_if(OutputSections, [](OutputSection *Cmd) {
1545 return Cmd->Sec->Type == SHT_ARM_EXIDX;1723 return Cmd->Type == SHT_ARM_EXIDX;
1546 });1724 });
1547 if (I == OutputSectionCommands.end())1725 if (I == OutputSections.end())
1548 return;1726 return;
15491727
1550 // PT_ARM_EXIDX is the ARM EHABI equivalent of PT_GNU_EH_FRAME1728 // PT_ARM_EXIDX is the ARM EHABI equivalent of PT_GNU_EH_FRAME
1551 PhdrEntry ARMExidx(PT_ARM_EXIDX, PF_R);1729 PhdrEntry *ARMExidx = make<PhdrEntry>(PT_ARM_EXIDX, PF_R);
1552 ARMExidx.add((*I)->Sec);1730 ARMExidx->add(*I);
1553 Phdrs.push_back(ARMExidx);1731 Phdrs.push_back(ARMExidx);
1554}1732}
15551733
...@@ -1557,33 +1735,31 @@ void Writer<ELFT>::addPtArmExid(std::vector<PhdrEntry> &Phdrs) {...@@ -1557,33 +1735,31 @@ void Writer<ELFT>::addPtArmExid(std::vector<PhdrEntry> &Phdrs) {
1557// first section after PT_GNU_RELRO have to be page aligned so that the dynamic1735// first section after PT_GNU_RELRO have to be page aligned so that the dynamic
1558// linker can set the permissions.1736// linker can set the permissions.
1559template <class ELFT> void Writer<ELFT>::fixSectionAlignments() {1737template <class ELFT> void Writer<ELFT>::fixSectionAlignments() {
1560 auto PageAlign = [](OutputSection *Sec) {1738 auto PageAlign = [](OutputSection *Cmd) {
1561 OutputSectionCommand *Cmd = Script->getCmd(Sec);
1562 if (Cmd && !Cmd->AddrExpr)1739 if (Cmd && !Cmd->AddrExpr)
1563 Cmd->AddrExpr = [=] {1740 Cmd->AddrExpr = [=] {
1564 return alignTo(Script->getDot(), Config->MaxPageSize);1741 return alignTo(Script->getDot(), Config->MaxPageSize);
1565 };1742 };
1566 };1743 };
15671744
1568 for (const PhdrEntry &P : Phdrs)1745 for (const PhdrEntry *P : Phdrs)
1569 if (P.p_type == PT_LOAD && P.First)1746 if (P->p_type == PT_LOAD && P->FirstSec)
1570 PageAlign(P.First);1747 PageAlign(P->FirstSec);
15711748
1572 for (const PhdrEntry &P : Phdrs) {1749 for (const PhdrEntry *P : Phdrs) {
1573 if (P.p_type != PT_GNU_RELRO)1750 if (P->p_type != PT_GNU_RELRO)
1574 continue;1751 continue;
1575 if (P.First)1752 if (P->FirstSec)
1576 PageAlign(P.First);1753 PageAlign(P->FirstSec);
1577 // Find the first section after PT_GNU_RELRO. If it is in a PT_LOAD we1754 // Find the first section after PT_GNU_RELRO. If it is in a PT_LOAD we
1578 // have to align it to a page.1755 // have to align it to a page.
1579 auto End = OutputSectionCommands.end();1756 auto End = OutputSections.end();
1580 auto I =1757 auto I = std::find(OutputSections.begin(), End, P->LastSec);
1581 std::find(OutputSectionCommands.begin(), End, Script->getCmd(P.Last));
1582 if (I == End || (I + 1) == End)1758 if (I == End || (I + 1) == End)
1583 continue;1759 continue;
1584 OutputSection *Sec = (*(I + 1))->Sec;1760 OutputSection *Cmd = (*(I + 1));
1585 if (needsPtLoad(Sec))1761 if (needsPtLoad(Cmd))
1586 PageAlign(Sec);1762 PageAlign(Cmd);
1587 }1763 }
1588}1764}
15891765
...@@ -1591,40 +1767,45 @@ template <class ELFT> void Writer<ELFT>::fixSectionAlignments() {...@@ -1591,40 +1767,45 @@ template <class ELFT> void Writer<ELFT>::fixSectionAlignments() {
1591// its new file offset. The file offset must be the same with its1767// its new file offset. The file offset must be the same with its
1592// virtual address (modulo the page size) so that the loader can load1768// virtual address (modulo the page size) so that the loader can load
1593// executables without any address adjustment.1769// executables without any address adjustment.
1594static uint64_t getFileAlignment(uint64_t Off, OutputSection *Sec) {1770static uint64_t getFileAlignment(uint64_t Off, OutputSection *Cmd) {
1595 OutputSection *First = Sec->FirstInPtLoad;1771 OutputSection *First = Cmd->PtLoad ? Cmd->PtLoad->FirstSec : nullptr;
1596 // If the section is not in a PT_LOAD, we just have to align it.
1597 if (!First)
1598 return alignTo(Off, Sec->Alignment);
1599
1600 // The first section in a PT_LOAD has to have congruent offset and address1772 // The first section in a PT_LOAD has to have congruent offset and address
1601 // module the page size.1773 // module the page size.
1602 if (Sec == First)1774 if (Cmd == First)
1603 return alignTo(Off, Config->MaxPageSize, Sec->Addr);1775 return alignTo(Off, std::max<uint64_t>(Cmd->Alignment, Config->MaxPageSize),
1776 Cmd->Addr);
1777
1778 // For SHT_NOBITS we don't want the alignment of the section to impact the
1779 // offset of the sections that follow. Since nothing seems to care about the
1780 // sh_offset of the SHT_NOBITS section itself, just ignore it.
1781 if (Cmd->Type == SHT_NOBITS)
1782 return Off;
1783
1784 // If the section is not in a PT_LOAD, we just have to align it.
1785 if (!Cmd->PtLoad)
1786 return alignTo(Off, Cmd->Alignment);
16041787
1605 // If two sections share the same PT_LOAD the file offset is calculated1788 // If two sections share the same PT_LOAD the file offset is calculated
1606 // using this formula: Off2 = Off1 + (VA2 - VA1).1789 // using this formula: Off2 = Off1 + (VA2 - VA1).
1607 return First->Offset + Sec->Addr - First->Addr;1790 return First->Offset + Cmd->Addr - First->Addr;
1608}1791}
16091792
1610static uint64_t setOffset(OutputSection *Sec, uint64_t Off) {1793static uint64_t setOffset(OutputSection *Cmd, uint64_t Off) {
1611 if (Sec->Type == SHT_NOBITS) {1794 Off = getFileAlignment(Off, Cmd);
1612 Sec->Offset = Off;1795 Cmd->Offset = Off;
1796
1797 // For SHT_NOBITS we should not count the size.
1798 if (Cmd->Type == SHT_NOBITS)
1613 return Off;1799 return Off;
1614 }
16151800
1616 Off = getFileAlignment(Off, Sec);1801 return Off + Cmd->Size;
1617 Sec->Offset = Off;
1618 return Off + Sec->Size;
1619}1802}
16201803
1621template <class ELFT> void Writer<ELFT>::assignFileOffsetsBinary() {1804template <class ELFT> void Writer<ELFT>::assignFileOffsetsBinary() {
1622 uint64_t Off = 0;1805 uint64_t Off = 0;
1623 for (OutputSectionCommand *Cmd : OutputSectionCommands) {1806 for (OutputSection *Sec : OutputSections)
1624 OutputSection *Sec = Cmd->Sec;
1625 if (Sec->Flags & SHF_ALLOC)1807 if (Sec->Flags & SHF_ALLOC)
1626 Off = setOffset(Sec, Off);1808 Off = setOffset(Sec, Off);
1627 }
1628 FileSize = alignTo(Off, Config->Wordsize);1809 FileSize = alignTo(Off, Config->Wordsize);
1629}1810}
16301811
...@@ -1634,46 +1815,58 @@ template <class ELFT> void Writer<ELFT>::assignFileOffsets() {...@@ -1634,46 +1815,58 @@ template <class ELFT> void Writer<ELFT>::assignFileOffsets() {
1634 Off = setOffset(Out::ElfHeader, Off);1815 Off = setOffset(Out::ElfHeader, Off);
1635 Off = setOffset(Out::ProgramHeaders, Off);1816 Off = setOffset(Out::ProgramHeaders, Off);
16361817
1637 for (OutputSectionCommand *Cmd : OutputSectionCommands)1818 PhdrEntry *LastRX = nullptr;
1638 Off = setOffset(Cmd->Sec, Off);1819 for (PhdrEntry *P : Phdrs)
1820 if (P->p_type == PT_LOAD && (P->p_flags & PF_X))
1821 LastRX = P;
1822
1823 for (OutputSection *Sec : OutputSections) {
1824 Off = setOffset(Sec, Off);
1825 if (Script->HasSectionsCommand)
1826 continue;
1827 // If this is a last section of the last executable segment and that
1828 // segment is the last loadable segment, align the offset of the
1829 // following section to avoid loading non-segments parts of the file.
1830 if (LastRX && LastRX->LastSec == Sec)
1831 Off = alignTo(Off, Target->PageSize);
1832 }
16391833
1640 SectionHeaderOff = alignTo(Off, Config->Wordsize);1834 SectionHeaderOff = alignTo(Off, Config->Wordsize);
1641 FileSize =1835 FileSize = SectionHeaderOff + (OutputSections.size() + 1) * sizeof(Elf_Shdr);
1642 SectionHeaderOff + (OutputSectionCommands.size() + 1) * sizeof(Elf_Shdr);
1643}1836}
16441837
1645// Finalize the program headers. We call this function after we assign1838// Finalize the program headers. We call this function after we assign
1646// file offsets and VAs to all sections.1839// file offsets and VAs to all sections.
1647template <class ELFT> void Writer<ELFT>::setPhdrs() {1840template <class ELFT> void Writer<ELFT>::setPhdrs() {
1648 for (PhdrEntry &P : Phdrs) {1841 for (PhdrEntry *P : Phdrs) {
1649 OutputSection *First = P.First;1842 OutputSection *First = P->FirstSec;
1650 OutputSection *Last = P.Last;1843 OutputSection *Last = P->LastSec;
1651 if (First) {1844 if (First) {
1652 P.p_filesz = Last->Offset - First->Offset;1845 P->p_filesz = Last->Offset - First->Offset;
1653 if (Last->Type != SHT_NOBITS)1846 if (Last->Type != SHT_NOBITS)
1654 P.p_filesz += Last->Size;1847 P->p_filesz += Last->Size;
1655 P.p_memsz = Last->Addr + Last->Size - First->Addr;1848 P->p_memsz = Last->Addr + Last->Size - First->Addr;
1656 P.p_offset = First->Offset;1849 P->p_offset = First->Offset;
1657 P.p_vaddr = First->Addr;1850 P->p_vaddr = First->Addr;
1658 if (!P.HasLMA)1851 if (!P->HasLMA)
1659 P.p_paddr = First->getLMA();1852 P->p_paddr = First->getLMA();
1660 }1853 }
1661 if (P.p_type == PT_LOAD)1854 if (P->p_type == PT_LOAD)
1662 P.p_align = Config->MaxPageSize;1855 P->p_align = std::max<uint64_t>(P->p_align, Config->MaxPageSize);
1663 else if (P.p_type == PT_GNU_RELRO) {1856 else if (P->p_type == PT_GNU_RELRO) {
1664 P.p_align = 1;1857 P->p_align = 1;
1665 // The glibc dynamic loader rounds the size down, so we need to round up1858 // The glibc dynamic loader rounds the size down, so we need to round up
1666 // to protect the last page. This is a no-op on FreeBSD which always1859 // to protect the last page. This is a no-op on FreeBSD which always
1667 // rounds up.1860 // rounds up.
1668 P.p_memsz = alignTo(P.p_memsz, Target->PageSize);1861 P->p_memsz = alignTo(P->p_memsz, Target->PageSize);
1669 }1862 }
16701863
1671 // The TLS pointer goes after PT_TLS. At least glibc will align it,1864 // The TLS pointer goes after PT_TLS. At least glibc will align it,
1672 // so round up the size to make sure the offsets are correct.1865 // so round up the size to make sure the offsets are correct.
1673 if (P.p_type == PT_TLS) {1866 if (P->p_type == PT_TLS) {
1674 Out::TlsPhdr = &P;1867 Out::TlsPhdr = P;
1675 if (P.p_memsz)1868 if (P->p_memsz)
1676 P.p_memsz = alignTo(P.p_memsz, P.p_align);1869 P->p_memsz = alignTo(P->p_memsz, P->p_align);
1677 }1870 }
1678 }1871 }
1679}1872}
...@@ -1682,27 +1875,29 @@ template <class ELFT> void Writer<ELFT>::setPhdrs() {...@@ -1682,27 +1875,29 @@ template <class ELFT> void Writer<ELFT>::setPhdrs() {
1682//1875//
1683// 1. the '-e' entry command-line option;1876// 1. the '-e' entry command-line option;
1684// 2. the ENTRY(symbol) command in a linker control script;1877// 2. the ENTRY(symbol) command in a linker control script;
1685// 3. the value of the symbol start, if present;1878// 3. the value of the symbol _start, if present;
1686// 4. the address of the first byte of the .text section, if present;1879// 4. the number represented by the entry symbol, if it is a number;
1687// 5. the address 0.1880// 5. the address of the first byte of the .text section, if present;
1881// 6. the address 0.
1688template <class ELFT> uint64_t Writer<ELFT>::getEntryAddr() {1882template <class ELFT> uint64_t Writer<ELFT>::getEntryAddr() {
1689 // Case 1, 2 or 3. As a special case, if the symbol is actually1883 // Case 1, 2 or 3
1690 // a number, we'll use that number as an address.1884 if (Symbol *B = Symtab->find(Config->Entry))
1691 if (SymbolBody *B = Symtab<ELFT>::X->find(Config->Entry))
1692 return B->getVA();1885 return B->getVA();
1886
1887 // Case 4
1693 uint64_t Addr;1888 uint64_t Addr;
1694 if (to_integer(Config->Entry, Addr))1889 if (to_integer(Config->Entry, Addr))
1695 return Addr;1890 return Addr;
16961891
1697 // Case 41892 // Case 5
1698 if (OutputSection *Sec = findSectionInScript(".text")) {1893 if (OutputSection *Sec = findSection(".text")) {
1699 if (Config->WarnMissingEntry)1894 if (Config->WarnMissingEntry)
1700 warn("cannot find entry symbol " + Config->Entry + "; defaulting to 0x" +1895 warn("cannot find entry symbol " + Config->Entry + "; defaulting to 0x" +
1701 utohexstr(Sec->Addr));1896 utohexstr(Sec->Addr));
1702 return Sec->Addr;1897 return Sec->Addr;
1703 }1898 }
17041899
1705 // Case 51900 // Case 6
1706 if (Config->WarnMissingEntry)1901 if (Config->WarnMissingEntry)
1707 warn("cannot find entry symbol " + Config->Entry +1902 warn("cannot find entry symbol " + Config->Entry +
1708 "; not setting start address");1903 "; not setting start address");
...@@ -1717,64 +1912,6 @@ static uint16_t getELFType() {...@@ -1717,64 +1912,6 @@ static uint16_t getELFType() {
1717 return ET_EXEC;1912 return ET_EXEC;
1718}1913}
17191914
1720// This function is called after we have assigned address and size
1721// to each section. This function fixes some predefined
1722// symbol values that depend on section address and size.
1723template <class ELFT> void Writer<ELFT>::fixPredefinedSymbols() {
1724 // _etext is the first location after the last read-only loadable segment.
1725 // _edata is the first location after the last read-write loadable segment.
1726 // _end is the first location after the uninitialized data region.
1727 PhdrEntry *Last = nullptr;
1728 PhdrEntry *LastRO = nullptr;
1729 PhdrEntry *LastRW = nullptr;
1730 for (PhdrEntry &P : Phdrs) {
1731 if (P.p_type != PT_LOAD)
1732 continue;
1733 Last = &P;
1734 if (P.p_flags & PF_W)
1735 LastRW = &P;
1736 else
1737 LastRO = &P;
1738 }
1739
1740 auto Set = [](DefinedRegular *S, OutputSection *Sec, uint64_t Value) {
1741 if (S) {
1742 S->Section = Sec;
1743 S->Value = Value;
1744 }
1745 };
1746
1747 if (Last) {
1748 Set(ElfSym::End1, Last->First, Last->p_memsz);
1749 Set(ElfSym::End2, Last->First, Last->p_memsz);
1750 }
1751 if (LastRO) {
1752 Set(ElfSym::Etext1, LastRO->First, LastRO->p_filesz);
1753 Set(ElfSym::Etext2, LastRO->First, LastRO->p_filesz);
1754 }
1755 if (LastRW) {
1756 Set(ElfSym::Edata1, LastRW->First, LastRW->p_filesz);
1757 Set(ElfSym::Edata2, LastRW->First, LastRW->p_filesz);
1758 }
1759
1760 if (ElfSym::Bss)
1761 ElfSym::Bss->Section = findSectionInScript(".bss");
1762
1763 // Setup MIPS _gp_disp/__gnu_local_gp symbols which should
1764 // be equal to the _gp symbol's value.
1765 if (Config->EMachine == EM_MIPS && !ElfSym::MipsGp->Value) {
1766 // Find GP-relative section with the lowest address
1767 // and use this address to calculate default _gp value.
1768 for (const OutputSectionCommand *Cmd : OutputSectionCommands) {
1769 OutputSection *OS = Cmd->Sec;
1770 if (OS->Flags & SHF_MIPS_GPREL) {
1771 ElfSym::MipsGp->Value = OS->Addr + 0x7ff0;
1772 break;
1773 }
1774 }
1775 }
1776}
1777
1778template <class ELFT> void Writer<ELFT>::writeHeader() {1915template <class ELFT> void Writer<ELFT>::writeHeader() {
1779 uint8_t *Buf = Buffer->getBufferStart();1916 uint8_t *Buf = Buffer->getBufferStart();
1780 memcpy(Buf, "\177ELF", 4);1917 memcpy(Buf, "\177ELF", 4);
...@@ -1790,20 +1927,13 @@ template <class ELFT> void Writer<ELFT>::writeHeader() {...@@ -1790,20 +1927,13 @@ template <class ELFT> void Writer<ELFT>::writeHeader() {
1790 EHdr->e_version = EV_CURRENT;1927 EHdr->e_version = EV_CURRENT;
1791 EHdr->e_entry = getEntryAddr();1928 EHdr->e_entry = getEntryAddr();
1792 EHdr->e_shoff = SectionHeaderOff;1929 EHdr->e_shoff = SectionHeaderOff;
1930 EHdr->e_flags = Config->EFlags;
1793 EHdr->e_ehsize = sizeof(Elf_Ehdr);1931 EHdr->e_ehsize = sizeof(Elf_Ehdr);
1794 EHdr->e_phnum = Phdrs.size();1932 EHdr->e_phnum = Phdrs.size();
1795 EHdr->e_shentsize = sizeof(Elf_Shdr);1933 EHdr->e_shentsize = sizeof(Elf_Shdr);
1796 EHdr->e_shnum = OutputSectionCommands.size() + 1;1934 EHdr->e_shnum = OutputSections.size() + 1;
1797 EHdr->e_shstrndx = InX::ShStrTab->getParent()->SectionIndex;1935 EHdr->e_shstrndx = InX::ShStrTab->getParent()->SectionIndex;
17981936
1799 if (Config->EMachine == EM_ARM)
1800 // We don't currently use any features incompatible with EF_ARM_EABI_VER5,
1801 // but we don't have any firm guarantees of conformance. Linux AArch64
1802 // kernels (as of 2016) require an EABI version to be set.
1803 EHdr->e_flags = EF_ARM_EABI_VER5;
1804 else if (Config->EMachine == EM_MIPS)
1805 EHdr->e_flags = getMipsEFlags<ELFT>();
1806
1807 if (!Config->Relocatable) {1937 if (!Config->Relocatable) {
1808 EHdr->e_phoff = sizeof(Elf_Ehdr);1938 EHdr->e_phoff = sizeof(Elf_Ehdr);
1809 EHdr->e_phentsize = sizeof(Elf_Phdr);1939 EHdr->e_phentsize = sizeof(Elf_Phdr);
...@@ -1811,22 +1941,22 @@ template <class ELFT> void Writer<ELFT>::writeHeader() {...@@ -1811,22 +1941,22 @@ template <class ELFT> void Writer<ELFT>::writeHeader() {
18111941
1812 // Write the program header table.1942 // Write the program header table.
1813 auto *HBuf = reinterpret_cast<Elf_Phdr *>(Buf + EHdr->e_phoff);1943 auto *HBuf = reinterpret_cast<Elf_Phdr *>(Buf + EHdr->e_phoff);
1814 for (PhdrEntry &P : Phdrs) {1944 for (PhdrEntry *P : Phdrs) {
1815 HBuf->p_type = P.p_type;1945 HBuf->p_type = P->p_type;
1816 HBuf->p_flags = P.p_flags;1946 HBuf->p_flags = P->p_flags;
1817 HBuf->p_offset = P.p_offset;1947 HBuf->p_offset = P->p_offset;
1818 HBuf->p_vaddr = P.p_vaddr;1948 HBuf->p_vaddr = P->p_vaddr;
1819 HBuf->p_paddr = P.p_paddr;1949 HBuf->p_paddr = P->p_paddr;
1820 HBuf->p_filesz = P.p_filesz;1950 HBuf->p_filesz = P->p_filesz;
1821 HBuf->p_memsz = P.p_memsz;1951 HBuf->p_memsz = P->p_memsz;
1822 HBuf->p_align = P.p_align;1952 HBuf->p_align = P->p_align;
1823 ++HBuf;1953 ++HBuf;
1824 }1954 }
18251955
1826 // Write the section header table. Note that the first table entry is null.1956 // Write the section header table. Note that the first table entry is null.
1827 auto *SHdrs = reinterpret_cast<Elf_Shdr *>(Buf + EHdr->e_shoff);1957 auto *SHdrs = reinterpret_cast<Elf_Shdr *>(Buf + EHdr->e_shoff);
1828 for (OutputSectionCommand *Cmd : OutputSectionCommands)1958 for (OutputSection *Sec : OutputSections)
1829 Cmd->Sec->writeHeaderTo<ELFT>(++SHdrs);1959 Sec->writeHeaderTo<ELFT>(++SHdrs);
1830}1960}
18311961
1832// Open a result file.1962// Open a result file.
...@@ -1837,23 +1967,58 @@ template <class ELFT> void Writer<ELFT>::openFile() {...@@ -1837,23 +1967,58 @@ template <class ELFT> void Writer<ELFT>::openFile() {
1837 }1967 }
18381968
1839 unlinkAsync(Config->OutputFile);1969 unlinkAsync(Config->OutputFile);
1840 ErrorOr<std::unique_ptr<FileOutputBuffer>> BufferOrErr =1970 unsigned Flags = 0;
1841 FileOutputBuffer::create(Config->OutputFile, FileSize,1971 if (!Config->Relocatable)
1842 FileOutputBuffer::F_executable);1972 Flags = FileOutputBuffer::F_executable;
1973 Expected<std::unique_ptr<FileOutputBuffer>> BufferOrErr =
1974 FileOutputBuffer::create(Config->OutputFile, FileSize, Flags);
18431975
1844 if (auto EC = BufferOrErr.getError())1976 if (!BufferOrErr)
1845 error("failed to open " + Config->OutputFile + ": " + EC.message());1977 error("failed to open " + Config->OutputFile + ": " +
1978 llvm::toString(BufferOrErr.takeError()));
1846 else1979 else
1847 Buffer = std::move(*BufferOrErr);1980 Buffer = std::move(*BufferOrErr);
1848}1981}
18491982
1850template <class ELFT> void Writer<ELFT>::writeSectionsBinary() {1983template <class ELFT> void Writer<ELFT>::writeSectionsBinary() {
1851 uint8_t *Buf = Buffer->getBufferStart();1984 uint8_t *Buf = Buffer->getBufferStart();
1852 for (OutputSectionCommand *Cmd : OutputSectionCommands) {1985 for (OutputSection *Sec : OutputSections)
1853 OutputSection *Sec = Cmd->Sec;
1854 if (Sec->Flags & SHF_ALLOC)1986 if (Sec->Flags & SHF_ALLOC)
1855 Cmd->writeTo<ELFT>(Buf + Sec->Offset);1987 Sec->writeTo<ELFT>(Buf + Sec->Offset);
1856 }1988}
1989
1990static void fillTrap(uint8_t *I, uint8_t *End) {
1991 for (; I + 4 <= End; I += 4)
1992 memcpy(I, &Target->TrapInstr, 4);
1993}
1994
1995// Fill the last page of executable segments with trap instructions
1996// instead of leaving them as zero. Even though it is not required by any
1997// standard, it is in general a good thing to do for security reasons.
1998//
1999// We'll leave other pages in segments as-is because the rest will be
2000// overwritten by output sections.
2001template <class ELFT> void Writer<ELFT>::writeTrapInstr() {
2002 if (Script->HasSectionsCommand)
2003 return;
2004
2005 // Fill the last page.
2006 uint8_t *Buf = Buffer->getBufferStart();
2007 for (PhdrEntry *P : Phdrs)
2008 if (P->p_type == PT_LOAD && (P->p_flags & PF_X))
2009 fillTrap(Buf + alignDown(P->p_offset + P->p_filesz, Target->PageSize),
2010 Buf + alignTo(P->p_offset + P->p_filesz, Target->PageSize));
2011
2012 // Round up the file size of the last segment to the page boundary iff it is
2013 // an executable segment to ensure that other tools don't accidentally
2014 // trim the instruction padding (e.g. when stripping the file).
2015 PhdrEntry *Last = nullptr;
2016 for (PhdrEntry *P : Phdrs)
2017 if (P->p_type == PT_LOAD)
2018 Last = P;
2019
2020 if (Last && (Last->p_flags & PF_X))
2021 Last->p_memsz = Last->p_filesz = alignTo(Last->p_filesz, Target->PageSize);
1857}2022}
18582023
1859// Write section contents to a mmap'ed file.2024// Write section contents to a mmap'ed file.
...@@ -1862,39 +2027,32 @@ template <class ELFT> void Writer<ELFT>::writeSections() {...@@ -1862,39 +2027,32 @@ template <class ELFT> void Writer<ELFT>::writeSections() {
18622027
1863 // PPC64 needs to process relocations in the .opd section2028 // PPC64 needs to process relocations in the .opd section
1864 // before processing relocations in code-containing sections.2029 // before processing relocations in code-containing sections.
1865 if (auto *OpdCmd = findSectionCommand(".opd")) {2030 if (auto *OpdCmd = findSection(".opd")) {
1866 Out::Opd = OpdCmd->Sec;2031 Out::Opd = OpdCmd;
1867 Out::OpdBuf = Buf + Out::Opd->Offset;2032 Out::OpdBuf = Buf + Out::Opd->Offset;
1868 OpdCmd->template writeTo<ELFT>(Buf + Out::Opd->Offset);2033 OpdCmd->template writeTo<ELFT>(Buf + Out::Opd->Offset);
1869 }2034 }
18702035
1871 OutputSection *EhFrameHdr =2036 OutputSection *EhFrameHdr = nullptr;
1872 (In<ELFT>::EhFrameHdr && !In<ELFT>::EhFrameHdr->empty())2037 if (InX::EhFrameHdr && !InX::EhFrameHdr->empty())
1873 ? In<ELFT>::EhFrameHdr->getParent()2038 EhFrameHdr = InX::EhFrameHdr->getParent();
1874 : nullptr;
18752039
1876 // In -r or -emit-relocs mode, write the relocation sections first as in2040 // In -r or -emit-relocs mode, write the relocation sections first as in
1877 // ELf_Rel targets we might find out that we need to modify the relocated2041 // ELf_Rel targets we might find out that we need to modify the relocated
1878 // section while doing it.2042 // section while doing it.
1879 for (OutputSectionCommand *Cmd : OutputSectionCommands) {2043 for (OutputSection *Sec : OutputSections)
1880 OutputSection *Sec = Cmd->Sec;
1881 if (Sec->Type == SHT_REL || Sec->Type == SHT_RELA)2044 if (Sec->Type == SHT_REL || Sec->Type == SHT_RELA)
1882 Cmd->writeTo<ELFT>(Buf + Sec->Offset);2045 Sec->writeTo<ELFT>(Buf + Sec->Offset);
1883 }
18842046
1885 for (OutputSectionCommand *Cmd : OutputSectionCommands) {2047 for (OutputSection *Sec : OutputSections)
1886 OutputSection *Sec = Cmd->Sec;
1887 if (Sec != Out::Opd && Sec != EhFrameHdr && Sec->Type != SHT_REL &&2048 if (Sec != Out::Opd && Sec != EhFrameHdr && Sec->Type != SHT_REL &&
1888 Sec->Type != SHT_RELA)2049 Sec->Type != SHT_RELA)
1889 Cmd->writeTo<ELFT>(Buf + Sec->Offset);2050 Sec->writeTo<ELFT>(Buf + Sec->Offset);
1890 }
18912051
1892 // The .eh_frame_hdr depends on .eh_frame section contents, therefore2052 // The .eh_frame_hdr depends on .eh_frame section contents, therefore
1893 // it should be written after .eh_frame is written.2053 // it should be written after .eh_frame is written.
1894 if (EhFrameHdr) {2054 if (EhFrameHdr)
1895 OutputSectionCommand *Cmd = Script->getCmd(EhFrameHdr);2055 EhFrameHdr->writeTo<ELFT>(Buf + EhFrameHdr->Offset);
1896 Cmd->writeTo<ELFT>(Buf + EhFrameHdr->Offset);
1897 }
1898}2056}
18992057
1900template <class ELFT> void Writer<ELFT>::writeBuildId() {2058template <class ELFT> void Writer<ELFT>::writeBuildId() {
deps/lld/ELF/Writer.h+9-7
...@@ -20,11 +20,10 @@ namespace elf {...@@ -20,11 +20,10 @@ namespace elf {
20class InputFile;20class InputFile;
21class OutputSection;21class OutputSection;
22class InputSectionBase;22class InputSectionBase;
23template <class ELFT> class ObjectFile;23template <class ELFT> class ObjFile;
24template <class ELFT> class SymbolTable;24class SymbolTable;
25template <class ELFT> void writeResult();25template <class ELFT> void writeResult();
26template <class ELFT> void markLive();26template <class ELFT> void markLive();
27bool isRelroSection(const OutputSection *Sec);
2827
29// This describes a program header entry.28// This describes a program header entry.
30// Each contains type, access flags and range of output sections that will be29// Each contains type, access flags and range of output sections that will be
...@@ -42,19 +41,22 @@ struct PhdrEntry {...@@ -42,19 +41,22 @@ struct PhdrEntry {
42 uint32_t p_type = 0;41 uint32_t p_type = 0;
43 uint32_t p_flags = 0;42 uint32_t p_flags = 0;
4443
45 OutputSection *First = nullptr;44 OutputSection *FirstSec = nullptr;
46 OutputSection *Last = nullptr;45 OutputSection *LastSec = nullptr;
47 bool HasLMA = false;46 bool HasLMA = false;
48};47};
4948
50llvm::StringRef getOutputSectionName(llvm::StringRef Name);49void addReservedSymbols();
50llvm::StringRef getOutputSectionName(InputSectionBase *S);
5151
52template <class ELFT> uint32_t getMipsEFlags();52template <class ELFT> uint32_t calcMipsEFlags();
5353
54uint8_t getMipsFpAbiFlag(uint8_t OldFlag, uint8_t NewFlag,54uint8_t getMipsFpAbiFlag(uint8_t OldFlag, uint8_t NewFlag,
55 llvm::StringRef FileName);55 llvm::StringRef FileName);
5656
57bool isMipsN32Abi(const InputFile *F);57bool isMipsN32Abi(const InputFile *F);
58bool isMicroMips();
59bool isMipsR6();
58} // namespace elf60} // namespace elf
59} // namespace lld61} // namespace lld
6062
deps/lld/MinGW/CMakeLists.txt created+23
...@@ -0,0 +1,23 @@
1set(LLVM_TARGET_DEFINITIONS Options.td)
2tablegen(LLVM Options.inc -gen-opt-parser-defs)
3add_public_tablegen_target(MinGWOptionsTableGen)
4
5if(NOT LLD_BUILT_STANDALONE)
6 set(tablegen_deps intrinsics_gen)
7endif()
8
9add_lld_library(lldMinGW
10 Driver.cpp
11
12 LINK_COMPONENTS
13 Option
14 Support
15
16 LINK_LIBS
17 lldCOFF
18 lldCommon
19
20 DEPENDS
21 MinGWOptionsTableGen
22 ${tablegen_deps}
23)
deps/lld/MinGW/Driver.cpp created+247
...@@ -0,0 +1,247 @@
1//===- MinGW/Driver.cpp ---------------------------------------------------===//
2//
3// The LLVM Linker
4//
5// This file is distributed under the University of Illinois Open Source
6// License. See LICENSE.TXT for details.
7//
8//===----------------------------------------------------------------------===//
9///
10/// GNU ld style linker driver for COFF currently supporting mingw-w64.
11///
12//===----------------------------------------------------------------------===//
13
14#include "lld/Common/Driver.h"
15#include "lld/Common/ErrorHandler.h"
16#include "llvm/ADT/ArrayRef.h"
17#include "llvm/ADT/Optional.h"
18#include "llvm/ADT/StringExtras.h"
19#include "llvm/ADT/StringRef.h"
20#include "llvm/Option/Arg.h"
21#include "llvm/Option/ArgList.h"
22#include "llvm/Option/Option.h"
23#include "llvm/Support/CommandLine.h"
24#include "llvm/Support/FileSystem.h"
25#include "llvm/Support/Path.h"
26
27#if !defined(_MSC_VER) && !defined(__MINGW32__)
28#include <unistd.h>
29#endif
30
31using namespace lld;
32using namespace llvm;
33
34// Create OptTable
35enum {
36 OPT_INVALID = 0,
37#define OPTION(_1, _2, ID, _4, _5, _6, _7, _8, _9, _10, _11, _12) OPT_##ID,
38#include "Options.inc"
39#undef OPTION
40};
41
42// Create prefix string literals used in Options.td
43#define PREFIX(NAME, VALUE) static const char *const NAME[] = VALUE;
44#include "Options.inc"
45#undef PREFIX
46
47// Create table mapping all options defined in Options.td
48static const opt::OptTable::Info InfoTable[] = {
49#define OPTION(X1, X2, ID, KIND, GROUP, ALIAS, X7, X8, X9, X10, X11, X12) \
50 {X1, X2, X10, X11, OPT_##ID, opt::Option::KIND##Class, \
51 X9, X8, OPT_##GROUP, OPT_##ALIAS, X7, X12},
52#include "Options.inc"
53#undef OPTION
54};
55
56namespace {
57class MinGWOptTable : public opt::OptTable {
58public:
59 MinGWOptTable() : OptTable(InfoTable, false) {}
60 opt::InputArgList parse(ArrayRef<const char *> Argv);
61};
62} // namespace
63
64opt::InputArgList MinGWOptTable::parse(ArrayRef<const char *> Argv) {
65 unsigned MissingIndex;
66 unsigned MissingCount;
67
68 SmallVector<const char *, 256> Vec(Argv.data(), Argv.data() + Argv.size());
69 opt::InputArgList Args = this->ParseArgs(Vec, MissingIndex, MissingCount);
70
71 if (MissingCount)
72 fatal(StringRef(Args.getArgString(MissingIndex)) + ": missing argument");
73 for (auto *Arg : Args.filtered(OPT_UNKNOWN))
74 fatal("unknown argument: " + Arg->getSpelling());
75 if (!Args.hasArg(OPT_INPUT) && !Args.hasArg(OPT_l))
76 fatal("no input files");
77 return Args;
78}
79
80// Find a file by concatenating given paths.
81static Optional<std::string> findFile(StringRef Path1, const Twine &Path2) {
82 SmallString<128> S;
83 sys::path::append(S, Path1, Path2);
84 if (sys::fs::exists(S))
85 return S.str().str();
86 return None;
87}
88
89// This is for -lfoo. We'll look for libfoo.dll.a or libfoo.a from search paths.
90static std::string
91searchLibrary(StringRef Name, ArrayRef<StringRef> SearchPaths, bool BStatic) {
92 if (Name.startswith(":")) {
93 for (StringRef Dir : SearchPaths)
94 if (Optional<std::string> S = findFile(Dir, Name.substr(1)))
95 return *S;
96 fatal("unable to find library -l" + Name);
97 }
98
99 for (StringRef Dir : SearchPaths) {
100 if (!BStatic)
101 if (Optional<std::string> S = findFile(Dir, "lib" + Name + ".dll.a"))
102 return *S;
103 if (Optional<std::string> S = findFile(Dir, "lib" + Name + ".a"))
104 return *S;
105 }
106 fatal("unable to find library -l" + Name);
107}
108
109// Convert Unix-ish command line arguments to Windows-ish ones and
110// then call coff::link.
111bool mingw::link(ArrayRef<const char *> ArgsArr, raw_ostream &Diag) {
112 MinGWOptTable Parser;
113 opt::InputArgList Args = Parser.parse(ArgsArr.slice(1));
114
115 std::vector<std::string> LinkArgs;
116 auto Add = [&](const Twine &S) { LinkArgs.push_back(S.str()); };
117
118 Add("lld-link");
119 Add("-lldmingw");
120
121 if (auto *A = Args.getLastArg(OPT_entry)) {
122 StringRef S = A->getValue();
123 if (Args.getLastArgValue(OPT_m) == "i386pe" && S.startswith("_"))
124 Add("-entry:" + S.substr(1));
125 else
126 Add("-entry:" + S);
127 }
128
129 if (auto *A = Args.getLastArg(OPT_subs))
130 Add("-subsystem:" + StringRef(A->getValue()));
131 if (auto *A = Args.getLastArg(OPT_out_implib))
132 Add("-implib:" + StringRef(A->getValue()));
133 if (auto *A = Args.getLastArg(OPT_stack))
134 Add("-stack:" + StringRef(A->getValue()));
135 if (auto *A = Args.getLastArg(OPT_output_def))
136 Add("-output-def:" + StringRef(A->getValue()));
137 if (auto *A = Args.getLastArg(OPT_image_base))
138 Add("-base:" + StringRef(A->getValue()));
139
140 if (auto *A = Args.getLastArg(OPT_o))
141 Add("-out:" + StringRef(A->getValue()));
142 else if (Args.hasArg(OPT_shared))
143 Add("-out:a.dll");
144 else
145 Add("-out:a.exe");
146
147 if (Args.hasArg(OPT_shared))
148 Add("-dll");
149 if (Args.hasArg(OPT_verbose))
150 Add("-verbose");
151 if (Args.hasArg(OPT_export_all_symbols))
152 Add("-export-all-symbols");
153 if (!Args.hasArg(OPT_strip_all))
154 Add("-debug:dwarf");
155 if (Args.hasArg(OPT_large_address_aware))
156 Add("-largeaddressaware");
157
158 if (Args.getLastArgValue(OPT_m) != "thumb2pe" &&
159 Args.getLastArgValue(OPT_m) != "arm64pe" && !Args.hasArg(OPT_dynamicbase))
160 Add("-dynamicbase:no");
161
162 if (Args.hasFlag(OPT_gc_sections, OPT_no_gc_sections, false))
163 Add("-opt:ref");
164 else
165 Add("-opt:noref");
166
167 if (auto *A = Args.getLastArg(OPT_icf)) {
168 StringRef S = A->getValue();
169 if (S == "all")
170 Add("-opt:icf");
171 else if (S == "safe" || S == "none")
172 Add("-opt:noicf");
173 else
174 fatal("unknown parameter: --icf=" + S);
175 } else {
176 Add("-opt:noicf");
177 }
178
179 if (auto *A = Args.getLastArg(OPT_m)) {
180 StringRef S = A->getValue();
181 if (S == "i386pe")
182 Add("-machine:x86");
183 else if (S == "i386pep")
184 Add("-machine:x64");
185 else if (S == "thumb2pe")
186 Add("-machine:arm");
187 else if (S == "arm64pe")
188 Add("-machine:arm64");
189 else
190 fatal("unknown parameter: -m" + S);
191 }
192
193 for (auto *A : Args.filtered(OPT_mllvm))
194 Add("-mllvm:" + StringRef(A->getValue()));
195
196 for (auto *A : Args.filtered(OPT_Xlink))
197 Add(A->getValue());
198
199 if (Args.getLastArgValue(OPT_m) == "i386pe")
200 Add("-alternatename:__image_base__=___ImageBase");
201 else
202 Add("-alternatename:__image_base__=__ImageBase");
203
204 std::vector<StringRef> SearchPaths;
205 for (auto *A : Args.filtered(OPT_L))
206 SearchPaths.push_back(A->getValue());
207
208 StringRef Prefix = "";
209 bool Static = false;
210 for (auto *A : Args) {
211 switch (A->getOption().getUnaliasedOption().getID()) {
212 case OPT_INPUT:
213 if (StringRef(A->getValue()).endswith_lower(".def"))
214 Add("-def:" + StringRef(A->getValue()));
215 else
216 Add(Prefix + StringRef(A->getValue()));
217 break;
218 case OPT_l:
219 Add(Prefix + searchLibrary(A->getValue(), SearchPaths, Static));
220 break;
221 case OPT_whole_archive:
222 Prefix = "-wholearchive:";
223 break;
224 case OPT_no_whole_archive:
225 Prefix = "";
226 break;
227 case OPT_Bstatic:
228 Static = true;
229 break;
230 case OPT_Bdynamic:
231 Static = false;
232 break;
233 }
234 }
235
236 if (Args.hasArg(OPT_verbose) || Args.hasArg(OPT__HASH_HASH_HASH))
237 outs() << llvm::join(LinkArgs, " ") << "\n";
238
239 if (Args.hasArg(OPT__HASH_HASH_HASH))
240 return true;
241
242 // Repack vector of strings to vector of const char pointers for coff::link.
243 std::vector<const char *> Vec;
244 for (const std::string &S : LinkArgs)
245 Vec.push_back(S.c_str());
246 return coff::link(Vec, true);
247}
deps/lld/MinGW/Options.td created+68
...@@ -0,0 +1,68 @@
1include "llvm/Option/OptParser.td"
2
3class F<string name>: Flag<["--", "-"], name>;
4class J<string name>: Joined<["--", "-"], name>;
5class S<string name>: Separate<["--", "-"], name>;
6
7def L: JoinedOrSeparate<["-"], "L">, MetaVarName<"<dir>">,
8 HelpText<"Add a directory to the library search path">;
9def dynamicbase: F<"dynamicbase">, HelpText<"Enable ASLR">;
10def entry: S<"entry">, MetaVarName<"<entry>">,
11 HelpText<"Name of entry point symbol">;
12def export_all_symbols: F<"export-all-symbols">,
13 HelpText<"Export all symbols even if a def file or dllexport attributes are used">;
14def gc_sections: F<"gc-sections">, HelpText<"Remove unused sections">;
15def icf: J<"icf=">, HelpText<"Identical code folding">;
16def image_base: S<"image-base">, HelpText<"Base address of the program">;
17def l: JoinedOrSeparate<["-"], "l">, MetaVarName<"<libName>">,
18 HelpText<"Root name of library to use">;
19def m: JoinedOrSeparate<["-"], "m">, HelpText<"Set target emulation">;
20def no_whole_archive: F<"no-whole-archive">,
21 HelpText<"No longer include all object files for following archives">;
22def large_address_aware: Flag<["--"], "large-address-aware">,
23 HelpText<"Enable large addresses">;
24def no_gc_sections: F<"no-gc-sections">, HelpText<"Don't remove unused sections">;
25def o: JoinedOrSeparate<["-"], "o">, MetaVarName<"<path>">,
26 HelpText<"Path to file to write output">;
27def out_implib: Separate<["--"], "out-implib">, HelpText<"Import library name">;
28def out_implib_eq: Joined<["--"], "out-implib=">, Alias<out_implib>;
29def output_def: S<"output-def">, HelpText<"Output def file">;
30def shared: F<"shared">, HelpText<"Build a shared object">;
31def subs: S<"subsystem">, HelpText<"Specify subsystem">;
32def stack: S<"stack">;
33def strip_all: F<"strip-all">,
34 HelpText<"Omit all symbol information from the output binary">;
35def whole_archive: F<"whole-archive">,
36 HelpText<"Include all object files for following archives">;
37def verbose: F<"verbose">, HelpText<"Verbose mode">;
38
39// LLD specific options
40def _HASH_HASH_HASH : Flag<["-"], "###">,
41 HelpText<"Print (but do not run) the commands to run for this compilation">;
42def mllvm: S<"mllvm">;
43def Xlink : J<"Xlink=">, MetaVarName<"<arg>">,
44 HelpText<"Pass <arg> to the COFF linker">;
45
46// Currently stubs to avoid errors
47def Bdynamic: F<"Bdynamic">, HelpText<"Link against shared libraries">;
48def Bstatic: F<"Bstatic">, HelpText<"Do not link against shared libraries">;
49def O: Joined<["-"], "O">, HelpText<"Optimize output file size">;
50def build_id: F<"build-id">;
51def disable_auto_image_base: F<"disable-auto-image-base">;
52def enable_auto_image_base: F<"enable-auto-image-base">;
53def enable_auto_import: F<"enable-auto-import">;
54def full_shutdown: Flag<["--"], "full-shutdown">;
55def high_entropy_va: F<"high-entropy-va">, HelpText<"Enable 64-bit ASLR">;
56def major_image_version: S<"major-image-version">;
57def minor_image_version: S<"minor-image-version">;
58def no_seh: F<"no-seh">;
59def nxcompat: F<"nxcompat">, HelpText<"Enable data execution prevention">;
60def pic_executable: F<"pic-executable">;
61def sysroot: J<"sysroot">, HelpText<"Sysroot">;
62def tsaware: F<"tsaware">, HelpText<"Create Terminal Server aware executable">;
63def v: Flag<["-"], "v">, HelpText<"Display the version number">;
64def version: F<"version">, HelpText<"Display the version number and exit">;
65
66// Alias
67def alias_entry_e: JoinedOrSeparate<["-"], "e">, Alias<entry>;
68def alias_strip_s: Flag<["-"], "s">, Alias<strip_all>;
deps/lld/README.md+10-2
...@@ -1,6 +1,5 @@...@@ -1,6 +1,5 @@
1
2LLVM Linker (lld)1LLVM Linker (lld)
3==============================2=================
43
5This directory and its subdirectories contain source code for the LLVM Linker, a4This directory and its subdirectories contain source code for the LLVM Linker, a
6modular cross platform linker which is built as part of the LLVM compiler5modular cross platform linker which is built as part of the LLVM compiler
...@@ -9,3 +8,12 @@ infrastructure project....@@ -9,3 +8,12 @@ infrastructure project.
9lld is open source software. You may freely distribute it under the terms of8lld is open source software. You may freely distribute it under the terms of
10the license agreement found in LICENSE.txt.9the license agreement found in LICENSE.txt.
1110
11Benchmarking
12============
13
14In order to make sure various developers can evaluate patches over the
15same tests, we create a collection of self contained programs.
16
17It is hosted at https://s3-us-west-2.amazonaws.com/linker-tests/lld-speed-test.tar.xz
18
19The current sha256 is 10eec685463d5a8bbf08d77f4ca96282161d396c65bd97dc99dbde644a31610f.
deps/lld/cmake/modules/AddLLD.cmake+4-8
...@@ -25,11 +25,9 @@ macro(add_lld_library name)...@@ -25,11 +25,9 @@ macro(add_lld_library name)
25 RUNTIME DESTINATION bin)25 RUNTIME DESTINATION bin)
2626
27 if (${ARG_SHARED} AND NOT CMAKE_CONFIGURATION_TYPES)27 if (${ARG_SHARED} AND NOT CMAKE_CONFIGURATION_TYPES)
28 add_custom_target(install-${name}28 add_llvm_install_targets(install-${name}
29 DEPENDS ${name}29 DEPENDS ${name}
30 COMMAND "${CMAKE_COMMAND}"30 COMPONENT ${name})
31 -DCMAKE_INSTALL_COMPONENT=${name}
32 -P "${CMAKE_BINARY_DIR}/cmake_install.cmake")
33 endif()31 endif()
34 set_property(GLOBAL APPEND PROPERTY LLD_EXPORTS ${name})32 set_property(GLOBAL APPEND PROPERTY LLD_EXPORTS ${name})
35 endif()33 endif()
...@@ -60,11 +58,9 @@ macro(add_lld_tool name)...@@ -60,11 +58,9 @@ macro(add_lld_tool name)
60 COMPONENT ${name})58 COMPONENT ${name})
6159
62 if(NOT CMAKE_CONFIGURATION_TYPES)60 if(NOT CMAKE_CONFIGURATION_TYPES)
63 add_custom_target(install-${name}61 add_llvm_install_targets(install-${name}
64 DEPENDS ${name}62 DEPENDS ${name}
65 COMMAND "${CMAKE_COMMAND}"63 COMPONENT ${name})
66 -DCMAKE_INSTALL_COMPONENT=${name}
67 -P "${CMAKE_BINARY_DIR}/cmake_install.cmake")
68 endif()64 endif()
69 set_property(GLOBAL APPEND PROPERTY LLD_EXPORTS ${name})65 set_property(GLOBAL APPEND PROPERTY LLD_EXPORTS ${name})
70 endif()66 endif()
deps/lld/docs/Driver.rst+1-1
...@@ -65,7 +65,7 @@ Adding an Option to an existing Flavor...@@ -65,7 +65,7 @@ Adding an Option to an existing Flavor
65Adding a Flavor65Adding a Flavor
66===============66===============
6767
68#. Add an entry for the flavor in :file:`include/lld/Driver/Driver.h` to68#. Add an entry for the flavor in :file:`include/lld/Common/Driver.h` to
69 :cpp:class:`lld::UniversalDriver::Flavor`.69 :cpp:class:`lld::UniversalDriver::Flavor`.
7070
71#. Add an entry in :file:`lib/Driver/UniversalDriver.cpp` to71#. Add an entry in :file:`lib/Driver/UniversalDriver.cpp` to
deps/lld/docs/NewLLD.rst+67-72
...@@ -1,5 +1,5 @@...@@ -1,5 +1,5 @@
1The ELF and COFF Linkers1The ELF, COFF and Wasm Linkers
2========================2==============================
33
4The ELF Linker as a Library4The ELF Linker as a Library
5---------------------------5---------------------------
...@@ -33,11 +33,12 @@ between speed, simplicity and extensibility....@@ -33,11 +33,12 @@ between speed, simplicity and extensibility.
3333
34 We implemented the linkers as native linkers for each file format.34 We implemented the linkers as native linkers for each file format.
3535
36 The two linkers share the same design but do not share code.36 The linkers share the same design but share very little code.
37 Sharing code makes sense if the benefit is worth its cost.37 Sharing code makes sense if the benefit is worth its cost.
38 In our case, ELF and COFF are different enough that we thought the layer to38 In our case, the object formats are different enough that we thought the layer
39 abstract the differences wouldn't worth its complexity and run-time cost.39 to abstract the differences wouldn't be worth its complexity and run-time
40 Elimination of the abstract layer has greatly simplified the implementation.40 cost. Elimination of the abstract layer has greatly simplified the
41 implementation.
4142
42* Speed by design43* Speed by design
4344
...@@ -57,59 +58,61 @@ between speed, simplicity and extensibility....@@ -57,59 +58,61 @@ between speed, simplicity and extensibility.
5758
58* Efficient archive file handling59* Efficient archive file handling
5960
60 LLD's handling of archive files (the files with ".a" file extension) is different61 LLD's handling of archive files (the files with ".a" file extension) is
61 from the traditional Unix linkers and similar to Windows linkers.62 different from the traditional Unix linkers and similar to Windows linkers.
62 We'll describe how the traditional Unix linker handles archive files,63 We'll describe how the traditional Unix linker handles archive files, what the
63 what the problem is, and how LLD approached the problem.64 problem is, and how LLD approached the problem.
6465
65 The traditional Unix linker maintains a set of undefined symbols during linking.66 The traditional Unix linker maintains a set of undefined symbols during
66 The linker visits each file in the order as they appeared in the command line67 linking. The linker visits each file in the order as they appeared in the
67 until the set becomes empty. What the linker would do depends on file type.68 command line until the set becomes empty. What the linker would do depends on
69 file type.
6870
69 - If the linker visits an object file, the linker links object files to the result,71 - If the linker visits an object file, the linker links object files to the
70 and undefined symbols in the object file are added to the set.72 result, and undefined symbols in the object file are added to the set.
7173
72 - If the linker visits an archive file, it checks for the archive file's symbol table74 - If the linker visits an archive file, it checks for the archive file's
73 and extracts all object files that have definitions for any symbols in the set.75 symbol table and extracts all object files that have definitions for any
76 symbols in the set.
7477
75 This algorithm sometimes leads to a counter-intuitive behavior.78 This algorithm sometimes leads to a counter-intuitive behavior. If you give
76 If you give archive files before object files, nothing will happen79 archive files before object files, nothing will happen because when the linker
77 because when the linker visits archives, there is no undefined symbols in the set.80 visits archives, there is no undefined symbols in the set. As a result, no
78 As a result, no files are extracted from the first archive file,81 files are extracted from the first archive file, and the link is done at that
79 and the link is done at that point because the set is empty after it visits one file.82 point because the set is empty after it visits one file.
8083
81 You can fix the problem by reordering the files,84 You can fix the problem by reordering the files,
82 but that cannot fix the issue of mutually-dependent archive files.85 but that cannot fix the issue of mutually-dependent archive files.
8386
84 Linking mutually-dependent archive files is tricky.87 Linking mutually-dependent archive files is tricky. You may specify the same
85 You may specify the same archive file multiple times to88 archive file multiple times to let the linker visit it more than once. Or,
86 let the linker visit it more than once.89 you may use the special command line options, `--start-group` and
87 Or, you may use the special command line options, `--start-group` and `--end-group`,90 `--end-group`, to let the linker loop over the files between the options until
88 to let the linker loop over the files between the options until
89 no new symbols are added to the set.91 no new symbols are added to the set.
9092
91 Visiting the same archive files multiple makes the linker slower.93 Visiting the same archive files multiple makes the linker slower.
9294
93 Here is how LLD approaches the problem. Instead of memorizing only undefined symbols,95 Here is how LLD approaches the problem. Instead of memorizing only undefined
94 we program LLD so that it memorizes all symbols.96 symbols, we program LLD so that it memorizes all symbols. When it sees an
95 When it sees an undefined symbol that can be resolved by extracting an object file97 undefined symbol that can be resolved by extracting an object file from an
96 from an archive file it previously visited, it immediately extracts the file and link it.98 archive file it previously visited, it immediately extracts the file and link
97 It is doable because LLD does not forget symbols it have seen in archive files.99 it. It is doable because LLD does not forget symbols it have seen in archive
100 files.
98101
99 We believe that the LLD's way is efficient and easy to justify.102 We believe that the LLD's way is efficient and easy to justify.
100103
101 The semantics of LLD's archive handling is different from the traditional Unix's.104 The semantics of LLD's archive handling is different from the traditional
102 You can observe it if you carefully craft archive files to exploit it.105 Unix's. You can observe it if you carefully craft archive files to exploit
103 However, in reality, we don't know any program that cannot link106 it. However, in reality, we don't know any program that cannot link with our
104 with our algorithm so far, so it's not going to cause trouble.107 algorithm so far, so it's not going to cause trouble.
105108
106Numbers You Want to Know109Numbers You Want to Know
107------------------------110------------------------
108111
109To give you intuition about what kinds of data the linker is mainly working on,112To give you intuition about what kinds of data the linker is mainly working on,
110I'll give you the list of objects and their numbers LLD has to read and process113I'll give you the list of objects and their numbers LLD has to read and process
111in order to link a very large executable. In order to link Chrome with debug info,114in order to link a very large executable. In order to link Chrome with debug
112which is roughly 2 GB in output size, LLD reads115info, which is roughly 2 GB in output size, LLD reads
113116
114- 17,000 files,117- 17,000 files,
115- 1,800,000 sections,118- 1,800,000 sections,
...@@ -136,17 +139,17 @@ when handling files....@@ -136,17 +139,17 @@ when handling files.
136Important Data Structures139Important Data Structures
137-------------------------140-------------------------
138141
139We will describe the key data structures in LLD in this section.142We will describe the key data structures in LLD in this section. The linker can
140The linker can be understood as the interactions between them.143be understood as the interactions between them. Once you understand their
141Once you understand their functions, the code of the linker should look obvious to you.144functions, the code of the linker should look obvious to you.
142145
143* SymbolBody146* Symbol
144147
145 SymbolBody is a class to represent symbols.148 This class represents a symbol.
146 They are created for symbols in object files or archive files.149 They are created for symbols in object files or archive files.
147 The linker creates linker-defined symbols as well.150 The linker creates linker-defined symbols as well.
148151
149 There are basically three types of SymbolBodies: Defined, Undefined, or Lazy.152 There are basically three types of Symbols: Defined, Undefined, or Lazy.
150153
151 - Defined symbols are for all symbols that are considered as "resolved",154 - Defined symbols are for all symbols that are considered as "resolved",
152 including real defined symbols, COMDAT symbols, common symbols,155 including real defined symbols, COMDAT symbols, common symbols,
...@@ -156,33 +159,25 @@ Once you understand their functions, the code of the linker should look obvious...@@ -156,33 +159,25 @@ Once you understand their functions, the code of the linker should look obvious
156 - Lazy symbols represent symbols we found in archive file headers159 - Lazy symbols represent symbols we found in archive file headers
157 which can turn into Defined if we read archieve members.160 which can turn into Defined if we read archieve members.
158161
159* Symbol162 There's only one Symbol instance for each unique symbol name. This uniqueness
163 is guaranteed by the symbol table. As the resolver reads symbols from input
164 files, it replaces an existing Symbol with the "best" Symbol for its symbol
165 name using the placement new.
160166
161 A Symbol is a container for a SymbolBody. There's only one Symbol for each167 The above mechanism allows you to use pointers to Symbols as a very cheap way
162 unique symbol name (this uniqueness is guaranteed by the symbol table).168 to access name resolution results. Assume for example that you have a pointer
163 Each global symbol has only one SymbolBody at any one time, which is169 to an undefined symbol before name resolution. If the symbol is resolved to a
164 the SymbolBody stored within a memory region of the Symbol large enough170 defined symbol by the resolver, the pointer will "automatically" point to the
165 to store any SymbolBody.171 defined symbol, because the undefined symbol the pointer pointed to will have
166172 been replaced by the defined symbol in-place.
167 As the resolver reads symbols from input files, it replaces the Symbol's
168 SymbolBody with the "best" SymbolBody for its symbol name by constructing
169 the new SymbolBody in place on top of the existing SymbolBody. For example,
170 if the resolver is given a defined symbol, and the SymbolBody with its name
171 is undefined, it will construct a Defined SymbolBody over the Undefined
172 SymbolBody.
173
174 This means that each SymbolBody pointer always points to the best SymbolBody,
175 and it is possible to get from a SymbolBody to a Symbol, or vice versa,
176 by adding or subtracting a fixed offset. This memory layout helps reduce
177 the cache miss rate through high locality and a small number of required
178 pointer indirections.
179173
180* SymbolTable174* SymbolTable
181175
182 SymbolTable is basically a hash table from strings to Symbols176 SymbolTable is basically a hash table from strings to Symbols
183 with logic to resolve symbol conflicts. It resolves conflicts by symbol type.177 with logic to resolve symbol conflicts. It resolves conflicts by symbol type.
184178
185 - If we add Defined and Undefined symbols, the symbol table will keep the former.179 - If we add Defined and Undefined symbols, the symbol table will keep the
180 former.
186 - If we add Defined and Lazy symbols, it will keep the former.181 - If we add Defined and Lazy symbols, it will keep the former.
187 - If we add Lazy and Undefined, it will keep the former,182 - If we add Lazy and Undefined, it will keep the former,
188 but it will also trigger the Lazy symbol to load the archive member183 but it will also trigger the Lazy symbol to load the archive member
...@@ -221,15 +216,14 @@ There are mainly three actors in this linker....@@ -221,15 +216,14 @@ There are mainly three actors in this linker.
221 InputFile is a superclass of file readers.216 InputFile is a superclass of file readers.
222 We have a different subclass for each input file type,217 We have a different subclass for each input file type,
223 such as regular object file, archive file, etc.218 such as regular object file, archive file, etc.
224 They are responsible for creating and owning SymbolBodies and219 They are responsible for creating and owning Symbols and InputSections/Chunks.
225 InputSections/Chunks.
226220
227* Writer221* Writer
228222
229 The writer is responsible for writing file headers and InputSections/Chunks to a file.223 The writer is responsible for writing file headers and InputSections/Chunks to
230 It creates OutputSections, put all InputSections/Chunks into them,224 a file. It creates OutputSections, put all InputSections/Chunks into them,
231 assign unique, non-overlapping addresses and file offsets to them,225 assign unique, non-overlapping addresses and file offsets to them, and then
232 and then write them down to a file.226 write them down to a file.
233227
234* Driver228* Driver
235229
...@@ -237,7 +231,8 @@ There are mainly three actors in this linker....@@ -237,7 +231,8 @@ There are mainly three actors in this linker.
237231
238 - processes command line options,232 - processes command line options,
239 - creates a symbol table,233 - creates a symbol table,
240 - creates an InputFile for each input file and puts all symbols within into the symbol table,234 - creates an InputFile for each input file and puts all symbols within into
235 the symbol table,
241 - checks if there's no remaining undefined symbols,236 - checks if there's no remaining undefined symbols,
242 - creates a writer,237 - creates a writer,
243 - and passes the symbol table to the writer to write the result to a file.238 - and passes the symbol table to the writer to write the result to a file.
...@@ -301,7 +296,7 @@ Glossary...@@ -301,7 +296,7 @@ Glossary
301 they are merged by ICF. It is known as an effective technique,296 they are merged by ICF. It is known as an effective technique,
302 and it usually reduces C++ program's size by a few percent or more.297 and it usually reduces C++ program's size by a few percent or more.
303298
304 Note that this is not entirely sound optimization. C/C++ require299 Note that this is not an entirely sound optimization. C/C++ require
305 different functions have different addresses. If a program depends on300 different functions have different addresses. If a program depends on
306 that property, it would fail at runtime.301 that property, it would fail at runtime.
307302
deps/lld/docs/ReleaseNotes.rst+22-151
...@@ -1,23 +1,22 @@...@@ -1,23 +1,22 @@
1=======================1=======================
2lld 5.0.0 Release Notes2LLD 6.0.0 Release Notes
3=======================3=======================
44
5.. contents::5.. contents::
6 :local:6 :local:
77
8.. warning::
9 These are in-progress notes for the upcoming LLVM 6.0.0 release.
10 Release notes for previous releases can be found on
11 `the Download Page <http://releases.llvm.org/download.html>`_.
12
8Introduction13Introduction
9============14============
1015
11lld is a linker from the LLVM project. It supports ELF (Unix), COFF (Windows)16This document contains the release notes for the LLD linker, release 6.0.0.
12and Mach-O (macOS), and it is generally faster than the GNU bfd or gold linkers17Here we describe the status of LLD, including major improvements
13or the MSVC linker.18from the previous release. All LLD releases may be downloaded
1419from the `LLVM releases web site <http://llvm.org/releases/>`_.
15lld is designed to be a drop-in replacement for the system linkers, so that
16users don't need to change their build systems other than swapping the linker
17command.
18
19All lld releases may be downloaded from the `LLVM releases web site
20<http://llvm.org/releases/>`_.
2120
22Non-comprehensive list of changes in this release21Non-comprehensive list of changes in this release
23=================================================22=================================================
...@@ -25,148 +24,20 @@ Non-comprehensive list of changes in this release...@@ -25,148 +24,20 @@ Non-comprehensive list of changes in this release
25ELF Improvements24ELF Improvements
26----------------25----------------
2726
28* First and foremost, a lot of compatibility issues and bugs have been fixed.27* Item 1.
29 Linker script support has significantly improved. As a result, we believe you
30 are very likely to be able to link your programs with lld without experiencing
31 any problem now.
32
33* Error message format has changed in order to improve readability.
34 Traditionally, linker's error messages are concise and arguably too terse.
35 This is an example of lld 4.0.0's error message (they are actually in one line)::
36
37 /ssd/clang/bin/ld.lld: error: /ssd/llvm-project/lld/ELF/Writer.cpp:207:
38 undefined symbol 'lld::elf::EhFrameSection::addSection()'
39
40 It is not easy to read because too much information is packed into a single line
41 and the embedded text, particularly a symbol name, is sometimes too long.
42 In lld 5.0.0, we use more vertical space to print out error messages in a more
43 structured manner like this::
44
45 bin/ld.lld: error: undefined symbol: lld::elf::EhFrameSection::addSection()
46 >>> Referenced by Writer.cpp:207 (/ssd/llvm-project/lld/ELF/Writer.cpp:207)
47 >>> Writer.cpp.o in archive lib/liblldELF.a
48
49 As a bonus, the new error message contains source code location of the error
50 if it is available from debug info.
51
52* ``./configure`` scripts generated by GNU autoconf determines whether a linker
53 supports modern GNU-compatible features or not by searching for "GNU" in the
54 ``--help`` message. To be compatible with the scripts, we decided to add a
55 string "(compatible with GNU linkers)" to our ``--help`` message. This is a
56 hack, but just like the web browser's User-Agent string (which everyone still
57 claim they are "Mozilla/5.0"), we had no choice other than doing this to claim
58 that we accept GNU-compatible options.
5928
60* The ``-Map`` option is added. The option is to make the linker to print out how29COFF Improvements
61 input files are mapped to the output file. Here is an example::30-----------------
6231
63 Address Size Align Out In Symbol32* A GNU ld style frontend for the COFF linker has been added for MinGW.
64 00000000016d84d8 00000000008f8f50 8 .eh_frame33 In MinGW environments, the linker is invoked with GNU ld style parameters;
65 00000000016d84d8 00000000008f8f50 8 <internal>:(.eh_frame)34 which LLD previously only supported when used as an ELF linker. When
66 0000000001fd2000 00000000034b3bd0 16 .text35 a PE/COFF target is chosen, those parameters are rewritten into the
67 0000000001fd2000 000000000000002a 1 /usr/lib/x86_64-linux-gnu/crt1.o:(.text)36 lld-link style parameters and the COFF linker is invoked instead.
68 0000000001fd2000 0000000000000000 0 _start
69 0000000001fd202a 0000000000000000 1 /usr/lib/x86_64-linux-gnu/crti.o:(.text)
70 0000000001fd2030 00000000000000bd 16 /usr/lib/gcc/x86_64-linux-gnu/4.8/crtbegin.o:(.text)
71 0000000001fd2030 0000000000000000 0 deregister_tm_clones
72 0000000001fd2060 0000000000000000 0 register_tm_clones
7337
74 This format is not the same as GNU linkers as our linker internal data38* Initial support for the ARM64 architecture has been added.
75 structure is different from them but contains the same amount of information
76 and should be more readable than their outputs.
77
78 As with other lld features, the ``-Map`` option is designed with speed in mind.
79 The option would generate a hundred megabyte text file if you link a large
80 program with it. lld can usually do that in a few seconds, and it is generally
81 a few times faster than the GNU gold's ``-Map`` option.
82
83* lld's ``--gdb-index`` option used to be slow, but we sped it up so that it is
84 at least as fast as the GNU gold.
85
86* Some nonstandard relocations, such as R_X86_64_8 or R_X86_64_16, are supported.
87 They are not used for 32/64-bit applications, but some 16-bit bootloaders need
88 them.
89
90* Paddings in executable text sections are now filled with trap instructions
91 (such as INT3) instead of being left as null bytes. This change improves
92 disassembler outputs because it now prints out trap instructions instead of
93 trying to decode 0x00 as an instruction. It also makes debugging of some type
94 of program easier because when the control reaches a padding, the program
95 immediately raises an error.
96
97* The following options are added: ``-M``, ``-Map``,
98 ``-compress-debug-sections``, ``-emit-relocs``,
99 ``-error-unresolved-symbols``, ``-exclude-libs``, ``-filter``,
100 ``-no-dynamic-linker``, ``-no-export-dynamic``, ``-no-fatal-warnings``,
101 ``-print-map``, ``-warn-unresolved-symbols``, ``-z nocopyreloc``,
102 ``-z notext``, ``-z rodynamic``
103
104
105Contributors to lld 5.0
106=======================
10739
108We had 63 individuals contribute to lld 5.0. Thank you so much!40MachO Improvements
41------------------
10942
110- Adrian McCarthy43* Item 1.
111- Alberto Magni
112- Alexander Richardson
113- Andre Vieira
114- Andrew Ng
115- Anton Korobeynikov
116- Bob Haarman
117- David Blaikie
118- Davide Italiano
119- David L. Jones
120- Dmitry Mikulin
121- Ed Maste
122- Ed Schouten
123- Eric Beckmann
124- Eric Fiselier
125- Eugene Leviant
126- Evgeniy Stepanov
127- Galina Kistanova
128- George Rimar
129- Hans Wennborg
130- Igor Kudrin
131- Ismail Donmez
132- Jake Ehrlich
133- James Henderson
134- Joel Jones
135- Jon Chesterfield
136- Kamil Rytarowski
137- Kevin Enderby
138- Konstantin Zhuravlyov
139- Kyungwoo Lee
140- Leslie Zhai
141- Mark Kettenis
142- Martell Malone
143- Martin Storsjo
144- Meador Inge
145- Mehdi Amini
146- Michal Gorny
147- NAKAMURA Takumi
148- Paul Robinson
149- Pavel Labath
150- Petar Jovanovic
151- Peter Collingbourne
152- Peter Smith
153- Petr Hosek
154- Rafael Espindola
155- Reid Kleckner
156- Richard Smith
157- Robert Clarke
158- Rui Ueyama
159- Saleem Abdulrasool
160- Sam Clegg
161- Sean Eveson
162- Sean Silva
163- Shankar Easwaran
164- Shoaib Meenai
165- Simon Atanasyan
166- Simon Dardis
167- Simon Tatham
168- Sylvestre Ledru
169- Tom Stellard
170- Vitaly Buka
171- Yuka Takahashi
172- Zachary Turner
deps/lld/docs/WebAssembly.rst created+36
...@@ -0,0 +1,36 @@
1WebAssembly lld port
2====================
3
4Note: The WebAssembly port is still a work in progress and is be lacking
5certain features.
6
7The WebAssembly version of lld takes WebAssembly binaries as inputs and produces
8a WebAssembly binary as its output. For the most part this port tried to mimic
9the behaviour of traditional ELF linkers and specifically the ELF lld port.
10Where possible that command line flags and the semantics should be the same.
11
12
13Object file format
14------------------
15
16The format the input object files that lld expects is specified as part of the
17the WebAssembly tool conventions
18https://github.com/WebAssembly/tool-conventions/blob/master/Linking.md.
19
20This is object format that the llvm will produce when run with the
21``wasm32-unknown-unknown-wasm`` target. To build llvm with WebAssembly support
22currently requires enabling the experimental backed using
23``-DLLVM_EXPERIMENTAL_TARGETS_TO_BUILD=WebAssembly``.
24
25
26Missing features
27----------------
28
29There are several key features that are not yet implement in the WebAssembly
30ports:
31
32- COMDAT support. This means that support for C++ is still very limited.
33- Function stripping. Currently there is no support for ``--gc-sections`` so
34 functions and data from a given object will linked as a unit.
35- Section start/end symbols. The synthetic symbols that mark the start and
36 of data regions are not yet created in the output file.
deps/lld/docs/_templates/indexsidebar.html+1-1
...@@ -1,4 +1,4 @@...@@ -1,4 +1,4 @@
1<h3>Bugs</h3>1<h3>Bugs</h3>
22
3<p>lld bugs should be reported at the3<p>lld bugs should be reported at the
4 LLVM <a href="http://llvm.org/bugs">Bugzilla</a>.</p>4 LLVM <a href="https://bugs.llvm.org/">Bugzilla</a>.</p>
deps/lld/docs/conf.py+2-2
...@@ -48,9 +48,9 @@ copyright = u'2011-%d, LLVM Project' % date.today().year...@@ -48,9 +48,9 @@ copyright = u'2011-%d, LLVM Project' % date.today().year
48# built documents.48# built documents.
49#49#
50# The short version.50# The short version.
51version = '5'51version = '6'
52# The full version, including alpha/beta/rc tags.52# The full version, including alpha/beta/rc tags.
53release = '5'53release = '6'
5454
55# The language for content autogenerated by Sphinx. Refer to documentation55# The language for content autogenerated by Sphinx. Refer to documentation
56# for a list of supported languages.56# for a list of supported languages.
deps/lld/docs/index.rst+27-28
...@@ -5,13 +5,14 @@ LLD is a linker from the LLVM project. That is a drop-in replacement...@@ -5,13 +5,14 @@ LLD is a linker from the LLVM project. That is a drop-in replacement
5for system linkers and runs much faster than them. It also provides5for system linkers and runs much faster than them. It also provides
6features that are useful for toolchain developers.6features that are useful for toolchain developers.
77
8The linker supports ELF (Unix), PE/COFF (Windows) and Mach-O (macOS)8The linker supports ELF (Unix), PE/COFF (Windows), Mach-O (macOS) and
9in descending order of completeness. Internally, LLD consists of three9WebAssembly in descending order of completeness. Internally, LLD consists of
10different linkers. The ELF port is the one that will be described in10several different linkers. The ELF port is the one that will be described in
11this document. The PE/COFF port is almost complete except the lack of11this document. The PE/COFF port is almost complete except the lack of the
12the Windows debug info (PDB) support. The Mach-O port is built based12Windows debug info (PDB) support. The WebAssembly port is still a work in
13on a different architecture than the ELF or COFF ports. For the13progress (See :doc:`WebAssembly`). The Mach-O port is built based on a
14details about Mach-O, please read :doc:`AtomLLD`.14different architecture than the others. For the details about Mach-O, please
15read :doc:`AtomLLD`.
1516
16Features17Features
17--------18--------
...@@ -71,30 +72,27 @@ Performance...@@ -71,30 +72,27 @@ Performance
71-----------72-----------
7273
73This is a link time comparison on a 2-socket 20-core 40-thread Xeon74This is a link time comparison on a 2-socket 20-core 40-thread Xeon
74E5-2680 2.80 GHz machine with an SSD drive.75E5-2680 2.80 GHz machine with an SSD drive. We ran gold and lld with
7576or without multi-threading support. To disable multi-threading, we
76LLD is much faster than the GNU linkers for large programs. That's77added ``-no-threads`` to the command lines.
77fast for small programs too, but because the link time is short78
78anyway, the difference is not very noticeable in that case.79============ =========== ============ ==================== ================== =============== =============
7980Program Output size GNU ld GNU gold w/o threads GNU gold w/threads lld w/o threads lld w/threads
81ffmpeg dbg 92 MiB 1.72s 1.16s 1.01s 0.60s 0.35s
82mysqld dbg 154 MiB 8.50s 2.96s 2.68s 1.06s 0.68s
83clang dbg 1.67 GiB 104.03s 34.18s 23.49s 14.82s 5.28s
84chromium dbg 1.14 GiB 209.05s [1]_ 64.70s 60.82s 27.60s 16.70s
85============ =========== ============ ==================== ================== =============== =============
86
87As you can see, lld is significantly faster than GNU linkers.
80Note that this is just a benchmark result of our environment.88Note that this is just a benchmark result of our environment.
81Depending on number of available cores, available amount of memory or89Depending on number of available cores, available amount of memory or
82disk latency/throughput, your results may vary.90disk latency/throughput, your results may vary.
8391
84============ =========== ============ ============= ======92.. [1] Since GNU ld doesn't support the ``-icf=all`` and
85Program Output size GNU ld GNU gold [1]_ LLD93 ``-gdb-index`` options, we removed them from the command line
86ffmpeg dbg 91 MiB 1.59s 1.15s 0.78s94 for GNU ld. GNU ld would have been slower than this if it had
87mysqld dbg 157 MiB 7.09s 2.49s 1.31s95 these options.
88clang dbg 1.45 GiB 86.76s 21.93s 8.38s
89chromium dbg 1.52 GiB 142.30s [2]_ 40.86s 12.69s
90============ =========== ============ ============= ======
91
92.. [1] With the ``--threads`` option to enable multi-threading support.
93
94.. [2] Since GNU ld doesn't support the ``-icf=all`` option, we
95 removed that from the command line for GNU ld. GNU ld would be
96 slower than this if it had that option support. For gold and
97 LLD, we use ``-icf=all``.
9896
99Build97Build
100-----98-----
...@@ -110,7 +108,7 @@ build that tree. You need `cmake` and of course a C++ compiler....@@ -110,7 +108,7 @@ build that tree. You need `cmake` and of course a C++ compiler.
110108
111.. code-block:: console109.. code-block:: console
112110
113 $ git clone https://github.com/llvm-project/llvm-project/111 $ git clone https://github.com/llvm-project/llvm-project-20170507 llvm-project
114 $ mkdir build112 $ mkdir build
115 $ cd build113 $ cd build
116 $ cmake -DCMAKE_BUILD_TYPE=Release -DLLVM_ENABLE_PROJECTS=lld -DCMAKE_INSTALL_PREFIX=/usr/local ../llvm-project/llvm114 $ cmake -DCMAKE_BUILD_TYPE=Release -DLLVM_ENABLE_PROJECTS=lld -DCMAKE_INSTALL_PREFIX=/usr/local ../llvm-project/llvm
...@@ -175,5 +173,6 @@ document soon....@@ -175,5 +173,6 @@ document soon.
175173
176 NewLLD174 NewLLD
177 AtomLLD175 AtomLLD
176 WebAssembly
178 windows_support177 windows_support
179 ReleaseNotes178 ReleaseNotes
deps/lld/docs/sphinx_intro.rst+8-28
...@@ -57,41 +57,21 @@ to install it using:...@@ -57,41 +57,21 @@ to install it using:
57Building the documentation57Building the documentation
58~~~~~~~~~~~~~~~~~~~~~~~~~~~~~58~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
5959
60In order to build the documentation, all you should need to do is change to the60In order to build the documentation need to add ``-DLLVM_ENABLE_SPHINX=ON`` to
61``docs`` directory and invoke make as follows::61your ``cmake`` command. Once you do this you can build the docs using
6262``docs-lld-html`` build (``ninja`` or ``make``) target.
63 $ cd path/to/project/docs
64 $ make html
65
66Note that on Windows there is a ``make.bat`` command in the docs directory which
67supplies the same interface as the ``Makefile``.
68
69That command will invoke ``sphinx-build`` with the appropriate options for the
70project, and generate the HTML documentation in a ``_build`` subdirectory. You
71can browse it starting from the index page by visiting
72``_build/html/index.html``.
73
74Sphinx supports a wide variety of generation formats (including LaTeX, man
75pages, and plain text). The ``Makefile`` includes a number of convenience
76targets for invoking ``sphinx-build`` appropriately, the common ones are:
77
78 make html
79 Generate the HTML output.
80
81 make latexpdf
82 Generate LaTeX documentation and convert to a PDF.
83
84 make man
85 Generate man pages.
8663
64That build target will invoke ``sphinx-build`` with the appropriate options for
65the project, and generate the HTML documentation in a ``tools/lld/docs/html``
66subdirectory.
8767
88.. _writing_documentation:68.. _writing_documentation:
8969
90Writing documentation70Writing documentation
91~~~~~~~~~~~~~~~~~~~~~71~~~~~~~~~~~~~~~~~~~~~
9272
93The documentation itself is written in the reStructuredText (ReST) format, and Sphinx73The documentation itself is written in the reStructuredText (ReST) format, and
94defines additional tags to support features like cross-referencing.74Sphinx defines additional tags to support features like cross-referencing.
9575
96The ReST format itself is organized around documents mostly being readable76The ReST format itself is organized around documents mostly being readable
97plaintext documents. You should generally be able to write new documentation77plaintext documents. You should generally be able to write new documentation
deps/lld/include/lld/Common/Args.h created+35
...@@ -0,0 +1,35 @@
1//===- Args.h ---------------------------------------------------*- C++ -*-===//
2//
3// The LLVM Linker
4//
5// This file is distributed under the University of Illinois Open Source
6// License. See LICENSE.TXT for details.
7//
8//===----------------------------------------------------------------------===//
9
10#ifndef LLD_ARGS_H
11#define LLD_ARGS_H
12
13#include "lld/Common/LLVM.h"
14#include "llvm/Support/MemoryBuffer.h"
15#include <vector>
16
17namespace llvm {
18namespace opt {
19class InputArgList;
20}
21} // namespace llvm
22
23namespace lld {
24namespace args {
25int getInteger(llvm::opt::InputArgList &Args, unsigned Key, int Default);
26std::vector<StringRef> getStrings(llvm::opt::InputArgList &Args, int Id);
27
28uint64_t getZOptionValue(llvm::opt::InputArgList &Args, int Id, StringRef Key,
29 uint64_t Default);
30
31std::vector<StringRef> getLines(MemoryBufferRef MB);
32} // namespace args
33} // namespace lld
34
35#endif
deps/lld/include/lld/Common/Driver.h created+43
...@@ -0,0 +1,43 @@
1//===- lld/Common/Driver.h - Linker Driver Emulator -----------------------===//
2//
3// The LLVM Linker
4//
5// This file is distributed under the University of Illinois Open Source
6// License. See LICENSE.TXT for details.
7//
8//===----------------------------------------------------------------------===//
9
10#ifndef LLD_COMMON_DRIVER_H
11#define LLD_COMMON_DRIVER_H
12
13#include "llvm/ADT/ArrayRef.h"
14#include "llvm/Support/raw_ostream.h"
15
16namespace lld {
17namespace coff {
18bool link(llvm::ArrayRef<const char *> Args, bool CanExitEarly,
19 llvm::raw_ostream &Diag = llvm::errs());
20}
21
22namespace mingw {
23bool link(llvm::ArrayRef<const char *> Args,
24 llvm::raw_ostream &Diag = llvm::errs());
25}
26
27namespace elf {
28bool link(llvm::ArrayRef<const char *> Args, bool CanExitEarly,
29 llvm::raw_ostream &Diag = llvm::errs());
30}
31
32namespace mach_o {
33bool link(llvm::ArrayRef<const char *> Args,
34 llvm::raw_ostream &Diag = llvm::errs());
35}
36
37namespace wasm {
38bool link(llvm::ArrayRef<const char *> Args, bool CanExitEarly,
39 llvm::raw_ostream &Diag = llvm::errs());
40}
41}
42
43#endif
deps/lld/include/lld/Common/ErrorHandler.h created+112
...@@ -0,0 +1,112 @@
1//===- ErrorHandler.h -------------------------------------------*- C++ -*-===//
2//
3// The LLVM Linker
4//
5// This file is distributed under the University of Illinois Open Source
6// License. See LICENSE.TXT for details.
7//
8//===----------------------------------------------------------------------===//
9//
10// In LLD, we have three levels of errors: fatal, error or warn.
11//
12// Fatal makes the program exit immediately with an error message.
13// You shouldn't use it except for reporting a corrupted input file.
14//
15// Error prints out an error message and increment a global variable
16// ErrorCount to record the fact that we met an error condition. It does
17// not exit, so it is safe for a lld-as-a-library use case. It is generally
18// useful because it can report more than one error in a single run.
19//
20// Warn doesn't do anything but printing out a given message.
21//
22// It is not recommended to use llvm::outs() or llvm::errs() directly
23// in LLD because they are not thread-safe. The functions declared in
24// this file are mutually excluded, so you want to use them instead.
25//
26//===----------------------------------------------------------------------===//
27
28#ifndef LLD_COMMON_ERRORHANDLER_H
29#define LLD_COMMON_ERRORHANDLER_H
30
31#include "lld/Common/LLVM.h"
32
33#include "llvm/ADT/STLExtras.h"
34#include "llvm/Support/Error.h"
35#include "llvm/Support/FileOutputBuffer.h"
36
37namespace lld {
38
39class ErrorHandler {
40public:
41 uint64_t ErrorCount = 0;
42 uint64_t ErrorLimit = 20;
43 StringRef ErrorLimitExceededMsg = "too many errors emitted, stopping now";
44 StringRef LogName = "lld";
45 llvm::raw_ostream *ErrorOS = &llvm::errs();
46 bool ColorDiagnostics = llvm::errs().has_colors();
47 bool ExitEarly = true;
48 bool FatalWarnings = false;
49 bool Verbose = false;
50
51 void error(const Twine &Msg);
52 LLVM_ATTRIBUTE_NORETURN void fatal(const Twine &Msg);
53 void log(const Twine &Msg);
54 void message(const Twine &Msg);
55 void warn(const Twine &Msg);
56
57 std::unique_ptr<llvm::FileOutputBuffer> OutputBuffer;
58
59private:
60 void print(StringRef S, raw_ostream::Colors C);
61};
62
63/// Returns the default error handler.
64ErrorHandler &errorHandler();
65
66inline void error(const Twine &Msg) { errorHandler().error(Msg); }
67inline LLVM_ATTRIBUTE_NORETURN void fatal(const Twine &Msg) {
68 errorHandler().fatal(Msg);
69}
70inline void log(const Twine &Msg) { errorHandler().log(Msg); }
71inline void message(const Twine &Msg) { errorHandler().message(Msg); }
72inline void warn(const Twine &Msg) { errorHandler().warn(Msg); }
73inline uint64_t errorCount() { return errorHandler().ErrorCount; }
74
75LLVM_ATTRIBUTE_NORETURN void exitLld(int Val);
76
77// check functions are convenient functions to strip errors
78// from error-or-value objects.
79template <class T> T check(ErrorOr<T> E) {
80 if (auto EC = E.getError())
81 fatal(EC.message());
82 return std::move(*E);
83}
84
85template <class T> T check(Expected<T> E) {
86 if (!E)
87 fatal(llvm::toString(E.takeError()));
88 return std::move(*E);
89}
90
91template <class T>
92T check2(ErrorOr<T> E, llvm::function_ref<std::string()> Prefix) {
93 if (auto EC = E.getError())
94 fatal(Prefix() + ": " + EC.message());
95 return std::move(*E);
96}
97
98template <class T>
99T check2(Expected<T> E, llvm::function_ref<std::string()> Prefix) {
100 if (!E)
101 fatal(Prefix() + ": " + toString(E.takeError()));
102 return std::move(*E);
103}
104
105inline std::string toString(const Twine &S) { return S.str(); }
106
107// To evaluate the second argument lazily, we use C macro.
108#define CHECK(E, S) check2(E, [&] { return toString(S); })
109
110} // namespace lld
111
112#endif
deps/lld/include/lld/Common/LLVM.h created+83
...@@ -0,0 +1,83 @@
1//===--- LLVM.h - Import various common LLVM datatypes ----------*- C++ -*-===//
2//
3// The LLVM Compiler Infrastructure
4//
5// This file is distributed under the University of Illinois Open Source
6// License. See LICENSE.TXT for details.
7//
8//===----------------------------------------------------------------------===//
9//
10// This file forward declares and imports various common LLVM datatypes that
11// lld wants to use unqualified.
12//
13//===----------------------------------------------------------------------===//
14
15#ifndef LLD_COMMON_LLVM_H
16#define LLD_COMMON_LLVM_H
17
18// This should be the only #include, force #includes of all the others on
19// clients.
20#include "llvm/ADT/Hashing.h"
21#include "llvm/Support/Casting.h"
22#include <utility>
23
24namespace llvm {
25 // ADT's.
26 class Error;
27 class StringRef;
28 class Twine;
29 class MemoryBuffer;
30 class MemoryBufferRef;
31 template<typename T> class ArrayRef;
32 template<unsigned InternalLen> class SmallString;
33 template<typename T, unsigned N> class SmallVector;
34 template<typename T> class SmallVectorImpl;
35
36 template<typename T>
37 struct SaveAndRestore;
38
39 template<typename T>
40 class ErrorOr;
41
42 template<typename T>
43 class Expected;
44
45 class raw_ostream;
46 // TODO: DenseMap, ...
47}
48
49namespace lld {
50 // Casting operators.
51 using llvm::isa;
52 using llvm::cast;
53 using llvm::dyn_cast;
54 using llvm::dyn_cast_or_null;
55 using llvm::cast_or_null;
56
57 // ADT's.
58 using llvm::Error;
59 using llvm::StringRef;
60 using llvm::Twine;
61 using llvm::MemoryBuffer;
62 using llvm::MemoryBufferRef;
63 using llvm::ArrayRef;
64 using llvm::SmallString;
65 using llvm::SmallVector;
66 using llvm::SmallVectorImpl;
67 using llvm::SaveAndRestore;
68 using llvm::ErrorOr;
69 using llvm::Expected;
70
71 using llvm::raw_ostream;
72} // end namespace lld.
73
74namespace std {
75template <> struct hash<llvm::StringRef> {
76public:
77 size_t operator()(const llvm::StringRef &s) const {
78 return llvm::hash_value(s);
79 }
80};
81}
82
83#endif
deps/lld/include/lld/Common/Memory.h created+60
...@@ -0,0 +1,60 @@
1//===- Memory.h -------------------------------------------------*- C++ -*-===//
2//
3// The LLVM Linker
4//
5// This file is distributed under the University of Illinois Open Source
6// License. See LICENSE.TXT for details.
7//
8//===----------------------------------------------------------------------===//
9//
10// This file defines arena allocators.
11//
12// Almost all large objects, such as files, sections or symbols, are
13// used for the entire lifetime of the linker once they are created.
14// This usage characteristic makes arena allocator an attractive choice
15// where the entire linker is one arena. With an arena, newly created
16// objects belong to the arena and freed all at once when everything is done.
17// Arena allocators are efficient and easy to understand.
18// Most objects are allocated using the arena allocators defined by this file.
19//
20//===----------------------------------------------------------------------===//
21
22#ifndef LLD_COMMON_MEMORY_H
23#define LLD_COMMON_MEMORY_H
24
25#include "llvm/Support/Allocator.h"
26#include "llvm/Support/StringSaver.h"
27#include <vector>
28
29namespace lld {
30
31// Use this arena if your object doesn't have a destructor.
32extern llvm::BumpPtrAllocator BAlloc;
33extern llvm::StringSaver Saver;
34
35void freeArena();
36
37// These two classes are hack to keep track of all
38// SpecificBumpPtrAllocator instances.
39struct SpecificAllocBase {
40 SpecificAllocBase() { Instances.push_back(this); }
41 virtual ~SpecificAllocBase() = default;
42 virtual void reset() = 0;
43 static std::vector<SpecificAllocBase *> Instances;
44};
45
46template <class T> struct SpecificAlloc : public SpecificAllocBase {
47 void reset() override { Alloc.DestroyAll(); }
48 llvm::SpecificBumpPtrAllocator<T> Alloc;
49};
50
51// Use this arena if your object has a destructor.
52// Your destructor will be invoked from freeArena().
53template <typename T, typename... U> T *make(U &&... Args) {
54 static SpecificAlloc<T> Alloc;
55 return new (Alloc.Alloc.Allocate()) T(std::forward<U>(Args)...);
56}
57
58} // namespace lld
59
60#endif
deps/lld/include/lld/Common/Reproduce.h created+39
...@@ -0,0 +1,39 @@
1//===- Reproduce.h - Utilities for creating reproducers ---------*- C++ -*-===//
2//
3// The LLVM Linker
4//
5// This file is distributed under the University of Illinois Open Source
6// License. See LICENSE.TXT for details.
7//
8//===----------------------------------------------------------------------===//
9
10#ifndef LLD_COMMON_REPRODUCE_H
11#define LLD_COMMON_REPRODUCE_H
12
13#include "lld/Common/LLVM.h"
14#include "llvm/ADT/StringRef.h"
15#include "llvm/Support/Error.h"
16
17namespace llvm {
18namespace opt { class Arg; }
19}
20
21namespace lld {
22
23// Makes a given pathname an absolute path first, and then remove
24// beginning /. For example, "../foo.o" is converted to "home/john/foo.o",
25// assuming that the current directory is "/home/john/bar".
26std::string relativeToRoot(StringRef Path);
27
28// Quote a given string if it contains a space character.
29std::string quote(StringRef S);
30
31// Rewrite the given path if a file exists with that pathname, otherwise
32// returns the original path.
33std::string rewritePath(StringRef S);
34
35// Returns the string form of the given argument.
36std::string toString(const llvm::opt::Arg &Arg);
37}
38
39#endif
deps/lld/include/lld/Common/Strings.h created+23
...@@ -0,0 +1,23 @@
1//===- Strings.h ------------------------------------------------*- C++ -*-===//
2//
3// The LLVM Linker
4//
5// This file is distributed under the University of Illinois Open Source
6// License. See LICENSE.TXT for details.
7//
8//===----------------------------------------------------------------------===//
9
10#ifndef LLD_STRINGS_H
11#define LLD_STRINGS_H
12
13#include "llvm/ADT/Optional.h"
14#include "llvm/ADT/StringRef.h"
15#include <string>
16
17namespace lld {
18// Returns a demangled C++ symbol name. If Name is not a mangled
19// name, it returns Optional::None.
20llvm::Optional<std::string> demangleItanium(llvm::StringRef Name);
21}
22
23#endif
deps/lld/include/lld/Common/TargetOptionsCommandFlags.h created+21
...@@ -0,0 +1,21 @@
1//===-- TargetOptionsCommandFlags.h ----------------------------*- C++ -*-===//
2//
3// The LLVM Compiler Infrastructure
4//
5// This file is distributed under the University of Illinois Open Source
6// License. See LICENSE.TXT for details.
7//
8//===----------------------------------------------------------------------===//
9//
10// Helper to create TargetOptions from command line flags.
11//
12//===----------------------------------------------------------------------===//
13
14#include "llvm/ADT/Optional.h"
15#include "llvm/Support/CodeGen.h"
16#include "llvm/Target/TargetOptions.h"
17
18namespace lld {
19llvm::TargetOptions InitTargetOptionsFromCodeGenFlags();
20llvm::Optional<llvm::CodeModel::Model> GetCodeModelFromCMModel();
21}
deps/lld/include/lld/Common/Threads.h created+86
...@@ -0,0 +1,86 @@
1//===- Threads.h ------------------------------------------------*- C++ -*-===//
2//
3// The LLVM Linker
4//
5// This file is distributed under the University of Illinois Open Source
6// License. See LICENSE.TXT for details.
7//
8//===----------------------------------------------------------------------===//
9//
10// LLD supports threads to distribute workloads to multiple cores. Using
11// multicore is most effective when more than one core are idle. At the
12// last step of a build, it is often the case that a linker is the only
13// active process on a computer. So, we are naturally interested in using
14// threads wisely to reduce latency to deliver results to users.
15//
16// That said, we don't want to do "too clever" things using threads.
17// Complex multi-threaded algorithms are sometimes extremely hard to
18// reason about and can easily mess up the entire design.
19//
20// Fortunately, when a linker links large programs (when the link time is
21// most critical), it spends most of the time to work on massive number of
22// small pieces of data of the same kind, and there are opportunities for
23// large parallelism there. Here are examples:
24//
25// - We have hundreds of thousands of input sections that need to be
26// copied to a result file at the last step of link. Once we fix a file
27// layout, each section can be copied to its destination and its
28// relocations can be applied independently.
29//
30// - We have tens of millions of small strings when constructing a
31// mergeable string section.
32//
33// For the cases such as the former, we can just use parallelForEach
34// instead of std::for_each (or a plain for loop). Because tasks are
35// completely independent from each other, we can run them in parallel
36// without any coordination between them. That's very easy to understand
37// and reason about.
38//
39// For the cases such as the latter, we can use parallel algorithms to
40// deal with massive data. We have to write code for a tailored algorithm
41// for each problem, but the complexity of multi-threading is isolated in
42// a single pass and doesn't affect the linker's overall design.
43//
44// The above approach seems to be working fairly well. As an example, when
45// linking Chromium (output size 1.6 GB), using 4 cores reduces latency to
46// 75% compared to single core (from 12.66 seconds to 9.55 seconds) on my
47// Ivy Bridge Xeon 2.8 GHz machine. Using 40 cores reduces it to 63% (from
48// 12.66 seconds to 7.95 seconds). Because of the Amdahl's law, the
49// speedup is not linear, but as you add more cores, it gets faster.
50//
51// On a final note, if you are trying to optimize, keep the axiom "don't
52// guess, measure!" in mind. Some important passes of the linker are not
53// that slow. For example, resolving all symbols is not a very heavy pass,
54// although it would be very hard to parallelize it. You want to first
55// identify a slow pass and then optimize it.
56//
57//===----------------------------------------------------------------------===//
58
59#ifndef LLD_COMMON_THREADS_H
60#define LLD_COMMON_THREADS_H
61
62#include "llvm/Support/Parallel.h"
63#include <functional>
64
65namespace lld {
66
67extern bool ThreadsEnabled;
68
69template <typename R, class FuncTy> void parallelForEach(R &&Range, FuncTy Fn) {
70 if (ThreadsEnabled)
71 for_each(llvm::parallel::par, std::begin(Range), std::end(Range), Fn);
72 else
73 for_each(llvm::parallel::seq, std::begin(Range), std::end(Range), Fn);
74}
75
76inline void parallelForEachN(size_t Begin, size_t End,
77 std::function<void(size_t)> Fn) {
78 if (ThreadsEnabled)
79 for_each_n(llvm::parallel::par, Begin, End, Fn);
80 else
81 for_each_n(llvm::parallel::seq, Begin, End, Fn);
82}
83
84} // namespace lld
85
86#endif
deps/lld/include/lld/Common/Version.h created+25
...@@ -0,0 +1,25 @@
1//===- lld/Common/Version.h - LLD Version Number ----------------*- C++ -*-===//
2//
3// The LLVM Compiler Infrastructure
4//
5// This file is distributed under the University of Illinois Open Source
6// License. See LICENSE.TXT for details.
7//
8//===----------------------------------------------------------------------===//
9//
10// Defines a version-related utility function.
11//
12//===----------------------------------------------------------------------===//
13
14#ifndef LLD_VERSION_H
15#define LLD_VERSION_H
16
17#include "lld/Common/Version.inc"
18#include "llvm/ADT/StringRef.h"
19
20namespace lld {
21/// \brief Retrieves a string representing the complete lld version.
22std::string getLLDVersion();
23}
24
25#endif // LLD_VERSION_H
deps/lld/include/lld/Common/Version.inc.in created+6
...@@ -0,0 +1,6 @@
1#define LLD_VERSION @LLD_VERSION@
2#define LLD_VERSION_STRING "@LLD_VERSION@"
3#define LLD_VERSION_MAJOR @LLD_VERSION_MAJOR@
4#define LLD_VERSION_MINOR @LLD_VERSION_MINOR@
5#define LLD_REVISION_STRING "@LLD_REVISION@"
6#define LLD_REPOSITORY_STRING "@LLD_REPOSITORY@"
deps/lld/include/lld/Config/Version.h deleted-25
...@@ -1,25 +0,0 @@
1//===- lld/Config/Version.h - LLD Version Number ----------------*- C++ -*-===//
2//
3// The LLVM Compiler Infrastructure
4//
5// This file is distributed under the University of Illinois Open Source
6// License. See LICENSE.TXT for details.
7//
8//===----------------------------------------------------------------------===//
9//
10// Defines a version-related utility function.
11//
12//===----------------------------------------------------------------------===//
13
14#ifndef LLD_VERSION_H
15#define LLD_VERSION_H
16
17#include "lld/Config/Version.inc"
18#include "llvm/ADT/StringRef.h"
19
20namespace lld {
21/// \brief Retrieves a string representing the complete lld version.
22std::string getLLDVersion();
23}
24
25#endif // LLD_VERSION_H
deps/lld/include/lld/Config/Version.inc.in deleted-6
...@@ -1,6 +0,0 @@
1#define LLD_VERSION @LLD_VERSION@
2#define LLD_VERSION_STRING "@LLD_VERSION@"
3#define LLD_VERSION_MAJOR @LLD_VERSION_MAJOR@
4#define LLD_VERSION_MINOR @LLD_VERSION_MINOR@
5#define LLD_REVISION_STRING "@LLD_REVISION@"
6#define LLD_REPOSITORY_STRING "@LLD_REPOSITORY@"
deps/lld/include/lld/Core/Atom.h+1-1
...@@ -10,7 +10,7 @@...@@ -10,7 +10,7 @@
10#ifndef LLD_CORE_ATOM_H10#ifndef LLD_CORE_ATOM_H
11#define LLD_CORE_ATOM_H11#define LLD_CORE_ATOM_H
1212
13#include "lld/Core/LLVM.h"13#include "lld/Common/LLVM.h"
14#include "llvm/ADT/StringRef.h"14#include "llvm/ADT/StringRef.h"
1515
16namespace lld {16namespace lld {
deps/lld/include/lld/Core/DefinedAtom.h+1-1
...@@ -10,9 +10,9 @@...@@ -10,9 +10,9 @@
10#ifndef LLD_CORE_DEFINED_ATOM_H10#ifndef LLD_CORE_DEFINED_ATOM_H
11#define LLD_CORE_DEFINED_ATOM_H11#define LLD_CORE_DEFINED_ATOM_H
1212
13#include "lld/Common/LLVM.h"
13#include "lld/Core/Atom.h"14#include "lld/Core/Atom.h"
14#include "lld/Core/Reference.h"15#include "lld/Core/Reference.h"
15#include "lld/Core/LLVM.h"
16#include "llvm/Support/ErrorHandling.h"16#include "llvm/Support/ErrorHandling.h"
1717
18namespace lld {18namespace lld {
deps/lld/include/lld/Core/Error.h+1-1
...@@ -14,7 +14,7 @@...@@ -14,7 +14,7 @@
14#ifndef LLD_CORE_ERROR_H14#ifndef LLD_CORE_ERROR_H
15#define LLD_CORE_ERROR_H15#define LLD_CORE_ERROR_H
1616
17#include "lld/Core/LLVM.h"17#include "lld/Common/LLVM.h"
18#include "llvm/ADT/Twine.h"18#include "llvm/ADT/Twine.h"
19#include "llvm/Support/Error.h"19#include "llvm/Support/Error.h"
20#include <system_error>20#include <system_error>
deps/lld/include/lld/Core/LLVM.h deleted-83
...@@ -1,83 +0,0 @@
1//===--- LLVM.h - Import various common LLVM datatypes ----------*- C++ -*-===//
2//
3// The LLVM Compiler Infrastructure
4//
5// This file is distributed under the University of Illinois Open Source
6// License. See LICENSE.TXT for details.
7//
8//===----------------------------------------------------------------------===//
9//
10// This file forward declares and imports various common LLVM datatypes that
11// lld wants to use unqualified.
12//
13//===----------------------------------------------------------------------===//
14
15#ifndef LLD_CORE_LLVM_H
16#define LLD_CORE_LLVM_H
17
18// This should be the only #include, force #includes of all the others on
19// clients.
20#include "llvm/ADT/Hashing.h"
21#include "llvm/Support/Casting.h"
22#include <utility>
23
24namespace llvm {
25 // ADT's.
26 class Error;
27 class StringRef;
28 class Twine;
29 class MemoryBuffer;
30 class MemoryBufferRef;
31 template<typename T> class ArrayRef;
32 template<unsigned InternalLen> class SmallString;
33 template<typename T, unsigned N> class SmallVector;
34 template<typename T> class SmallVectorImpl;
35
36 template<typename T>
37 struct SaveAndRestore;
38
39 template<typename T>
40 class ErrorOr;
41
42 template<typename T>
43 class Expected;
44
45 class raw_ostream;
46 // TODO: DenseMap, ...
47}
48
49namespace lld {
50 // Casting operators.
51 using llvm::isa;
52 using llvm::cast;
53 using llvm::dyn_cast;
54 using llvm::dyn_cast_or_null;
55 using llvm::cast_or_null;
56
57 // ADT's.
58 using llvm::Error;
59 using llvm::StringRef;
60 using llvm::Twine;
61 using llvm::MemoryBuffer;
62 using llvm::MemoryBufferRef;
63 using llvm::ArrayRef;
64 using llvm::SmallString;
65 using llvm::SmallVector;
66 using llvm::SmallVectorImpl;
67 using llvm::SaveAndRestore;
68 using llvm::ErrorOr;
69 using llvm::Expected;
70
71 using llvm::raw_ostream;
72} // end namespace lld.
73
74namespace std {
75template <> struct hash<llvm::StringRef> {
76public:
77 size_t operator()(const llvm::StringRef &s) const {
78 return llvm::hash_value(s);
79 }
80};
81}
82
83#endif
deps/lld/include/lld/Core/LinkingContext.h+2-2
...@@ -62,7 +62,7 @@ public:...@@ -62,7 +62,7 @@ public:
62 /// of DefinedAtoms that should be marked live (along with all Atoms they62 /// of DefinedAtoms that should be marked live (along with all Atoms they
63 /// reference). Only Atoms with scope scopeLinkageUnit or scopeGlobal can63 /// reference). Only Atoms with scope scopeLinkageUnit or scopeGlobal can
64 /// be kept live using this method.64 /// be kept live using this method.
65 const std::vector<StringRef> &deadStripRoots() const {65 ArrayRef<StringRef> deadStripRoots() const {
66 return _deadStripRoots;66 return _deadStripRoots;
67 }67 }
6868
...@@ -106,7 +106,7 @@ public:...@@ -106,7 +106,7 @@ public:
106 /// options which are used to configure LLVM's command line settings.106 /// options which are used to configure LLVM's command line settings.
107 /// For instance the -debug-only XXX option can be used to dynamically107 /// For instance the -debug-only XXX option can be used to dynamically
108 /// trace different parts of LLVM and lld.108 /// trace different parts of LLVM and lld.
109 const std::vector<const char *> &llvmOptions() const { return _llvmOptions; }109 ArrayRef<const char *> llvmOptions() const { return _llvmOptions; }
110110
111 /// \name Methods used by Drivers to configure TargetInfo111 /// \name Methods used by Drivers to configure TargetInfo
112 /// @{112 /// @{
deps/lld/include/lld/Core/PassManager.h+1-1
...@@ -10,7 +10,7 @@...@@ -10,7 +10,7 @@
10#ifndef LLD_CORE_PASS_MANAGER_H10#ifndef LLD_CORE_PASS_MANAGER_H
11#define LLD_CORE_PASS_MANAGER_H11#define LLD_CORE_PASS_MANAGER_H
1212
13#include "lld/Core/LLVM.h"13#include "lld/Common/LLVM.h"
14#include "lld/Core/Pass.h"14#include "lld/Core/Pass.h"
15#include "llvm/Support/Error.h"15#include "llvm/Support/Error.h"
16#include <memory>16#include <memory>
deps/lld/include/lld/Core/Reader.h+1-1
...@@ -10,7 +10,7 @@...@@ -10,7 +10,7 @@
10#ifndef LLD_CORE_READER_H10#ifndef LLD_CORE_READER_H
11#define LLD_CORE_READER_H11#define LLD_CORE_READER_H
1212
13#include "lld/Core/LLVM.h"13#include "lld/Common/LLVM.h"
14#include "lld/Core/Reference.h"14#include "lld/Core/Reference.h"
15#include "llvm/ADT/StringRef.h"15#include "llvm/ADT/StringRef.h"
16#include "llvm/BinaryFormat/Magic.h"16#include "llvm/BinaryFormat/Magic.h"
deps/lld/include/lld/Core/Reproduce.h deleted-39
...@@ -1,39 +0,0 @@
1//===- Reproduce.h - Utilities for creating reproducers ---------*- C++ -*-===//
2//
3// The LLVM Linker
4//
5// This file is distributed under the University of Illinois Open Source
6// License. See LICENSE.TXT for details.
7//
8//===----------------------------------------------------------------------===//
9
10#ifndef LLD_CORE_REPRODUCE_H
11#define LLD_CORE_REPRODUCE_H
12
13#include "lld/Core/LLVM.h"
14#include "llvm/ADT/StringRef.h"
15#include "llvm/Support/Error.h"
16
17namespace llvm {
18namespace opt { class Arg; }
19}
20
21namespace lld {
22
23// Makes a given pathname an absolute path first, and then remove
24// beginning /. For example, "../foo.o" is converted to "home/john/foo.o",
25// assuming that the current directory is "/home/john/bar".
26std::string relativeToRoot(StringRef Path);
27
28// Quote a given string if it contains a space character.
29std::string quote(StringRef S);
30
31// Rewrite the given path if a file exists with that pathname, otherwise
32// returns the original path.
33std::string rewritePath(StringRef S);
34
35// Returns the string form of the given argument.
36std::string toString(llvm::opt::Arg *Arg);
37}
38
39#endif
deps/lld/include/lld/Core/SymbolTable.h+1-1
...@@ -10,7 +10,7 @@...@@ -10,7 +10,7 @@
10#ifndef LLD_CORE_SYMBOL_TABLE_H10#ifndef LLD_CORE_SYMBOL_TABLE_H
11#define LLD_CORE_SYMBOL_TABLE_H11#define LLD_CORE_SYMBOL_TABLE_H
1212
13#include "lld/Core/LLVM.h"13#include "lld/Common/LLVM.h"
14#include "llvm/ADT/DenseSet.h"14#include "llvm/ADT/DenseSet.h"
15#include "llvm/ADT/StringExtras.h"15#include "llvm/ADT/StringExtras.h"
16#include <cstring>16#include <cstring>
deps/lld/include/lld/Core/TargetOptionsCommandFlags.h deleted-20
...@@ -1,20 +0,0 @@
1//===-- TargetOptionsCommandFlags.h ----------------------------*- C++ -*-===//
2//
3// The LLVM Compiler Infrastructure
4//
5// This file is distributed under the University of Illinois Open Source
6// License. See LICENSE.TXT for details.
7//
8//===----------------------------------------------------------------------===//
9//
10// Helper to create TargetOptions from command line flags.
11//
12//===----------------------------------------------------------------------===//
13
14#include "llvm/Support/CodeGen.h"
15#include "llvm/Target/TargetOptions.h"
16
17namespace lld {
18llvm::TargetOptions InitTargetOptionsFromCodeGenFlags();
19llvm::CodeModel::Model GetCodeModelFromCMModel();
20}
deps/lld/include/lld/Core/Writer.h+1-1
...@@ -10,7 +10,7 @@...@@ -10,7 +10,7 @@
10#ifndef LLD_CORE_WRITER_H10#ifndef LLD_CORE_WRITER_H
11#define LLD_CORE_WRITER_H11#define LLD_CORE_WRITER_H
1212
13#include "lld/Core/LLVM.h"13#include "lld/Common/LLVM.h"
14#include "llvm/Support/Error.h"14#include "llvm/Support/Error.h"
15#include <memory>15#include <memory>
16#include <vector>16#include <vector>
deps/lld/include/lld/Driver/Driver.h deleted-33
...@@ -1,33 +0,0 @@
1//===- lld/Driver/Driver.h - Linker Driver Emulator -----------------------===//
2//
3// The LLVM Linker
4//
5// This file is distributed under the University of Illinois Open Source
6// License. See LICENSE.TXT for details.
7//
8//===----------------------------------------------------------------------===//
9
10#ifndef LLD_DRIVER_DRIVER_H
11#define LLD_DRIVER_DRIVER_H
12
13#include "llvm/ADT/ArrayRef.h"
14#include "llvm/Support/raw_ostream.h"
15
16namespace lld {
17namespace coff {
18bool link(llvm::ArrayRef<const char *> Args, bool CanExitEarly,
19 llvm::raw_ostream &Diag = llvm::errs());
20}
21
22namespace elf {
23bool link(llvm::ArrayRef<const char *> Args, bool CanExitEarly,
24 llvm::raw_ostream &Diag = llvm::errs());
25}
26
27namespace mach_o {
28bool link(llvm::ArrayRef<const char *> Args,
29 llvm::raw_ostream &Diag = llvm::errs());
30}
31}
32
33#endif
deps/lld/include/lld/ReaderWriter/YamlContext.h+2-1
...@@ -10,7 +10,7 @@...@@ -10,7 +10,7 @@
10#ifndef LLD_READER_WRITER_YAML_CONTEXT_H10#ifndef LLD_READER_WRITER_YAML_CONTEXT_H
11#define LLD_READER_WRITER_YAML_CONTEXT_H11#define LLD_READER_WRITER_YAML_CONTEXT_H
1212
13#include "lld/Core/LLVM.h"13#include "lld/Common/LLVM.h"
14#include <functional>14#include <functional>
15#include <memory>15#include <memory>
16#include <vector>16#include <vector>
...@@ -18,6 +18,7 @@...@@ -18,6 +18,7 @@
18namespace lld {18namespace lld {
19class File;19class File;
20class LinkingContext;20class LinkingContext;
21class Registry;
21namespace mach_o {22namespace mach_o {
22namespace normalized {23namespace normalized {
23struct NormalizedFile;24struct NormalizedFile;
deps/lld/lib/CMakeLists.txt-1
...@@ -1,4 +1,3 @@...@@ -1,4 +1,3 @@
1add_subdirectory(Config)
2add_subdirectory(Core)1add_subdirectory(Core)
3add_subdirectory(Driver)2add_subdirectory(Driver)
4add_subdirectory(ReaderWriter)3add_subdirectory(ReaderWriter)
deps/lld/lib/Config/CMakeLists.txt deleted-9
...@@ -1,9 +0,0 @@
1add_lld_library(lldConfig
2 Version.cpp
3
4 ADDITIONAL_HEADER_DIRS
5 ${LLD_INCLUDE_DIR}/lld/Config
6
7 LINK_COMPONENTS
8 Support
9 )
deps/lld/lib/Config/Version.cpp deleted-43
...@@ -1,43 +0,0 @@
1//===- lib/Config/Version.cpp - LLD Version Number ---------------*- C++-=====//
2//
3// The LLVM Compiler Infrastructure
4//
5// This file is distributed under the University of Illinois Open Source
6// License. See LICENSE.TXT for details.
7//
8//===----------------------------------------------------------------------===//
9//
10// This file defines several version-related utility functions for LLD.
11//
12//===----------------------------------------------------------------------===//
13
14#include "lld/Config/Version.h"
15
16using namespace llvm;
17
18// Returns an SVN repository path, which is usually "trunk".
19static std::string getRepositoryPath() {
20 StringRef S = LLD_REPOSITORY_STRING;
21 size_t Pos = S.find("lld/");
22 if (Pos != StringRef::npos)
23 return S.substr(Pos + 4);
24 return S;
25}
26
27// Returns an SVN repository name, e.g., " (trunk 284614)"
28// or an empty string if no repository info is available.
29static std::string getRepository() {
30 std::string Repo = getRepositoryPath();
31 std::string Rev = LLD_REVISION_STRING;
32
33 if (Repo.empty() && Rev.empty())
34 return "";
35 if (!Repo.empty() && !Rev.empty())
36 return " (" + Repo + " " + Rev + ")";
37 return " (" + Repo + Rev + ")";
38}
39
40// Returns a version string, e.g., "LLD 4.0 (lld/trunk 284614)".
41std::string lld::getLLDVersion() {
42 return "LLD " + std::string(LLD_VERSION_STRING) + getRepository();
43}
deps/lld/lib/Core/CMakeLists.txt-2
...@@ -8,10 +8,8 @@ add_lld_library(lldCore...@@ -8,10 +8,8 @@ add_lld_library(lldCore
8 File.cpp8 File.cpp
9 LinkingContext.cpp9 LinkingContext.cpp
10 Reader.cpp10 Reader.cpp
11 Reproduce.cpp
12 Resolver.cpp11 Resolver.cpp
13 SymbolTable.cpp12 SymbolTable.cpp
14 TargetOptionsCommandFlags.cpp
15 Writer.cpp13 Writer.cpp
1614
17 ADDITIONAL_HEADER_DIRS15 ADDITIONAL_HEADER_DIRS
deps/lld/lib/Core/Reproduce.cpp deleted-66
...@@ -1,66 +0,0 @@
1//===- Reproduce.cpp - Utilities for creating reproducers -----------------===//
2//
3// The LLVM Linker
4//
5// This file is distributed under the University of Illinois Open Source
6// License. See LICENSE.TXT for details.
7//
8//===----------------------------------------------------------------------===//
9
10#include "lld/Core/Reproduce.h"
11#include "llvm/Option/Arg.h"
12#include "llvm/Support/Error.h"
13#include "llvm/Support/FileSystem.h"
14#include "llvm/Support/Path.h"
15
16using namespace lld;
17using namespace llvm;
18using namespace llvm::sys;
19
20// Makes a given pathname an absolute path first, and then remove
21// beginning /. For example, "../foo.o" is converted to "home/john/foo.o",
22// assuming that the current directory is "/home/john/bar".
23// Returned string is a forward slash separated path even on Windows to avoid
24// a mess with backslash-as-escape and backslash-as-path-separator.
25std::string lld::relativeToRoot(StringRef Path) {
26 SmallString<128> Abs = Path;
27 if (fs::make_absolute(Abs))
28 return Path;
29 path::remove_dots(Abs, /*remove_dot_dot=*/true);
30
31 // This is Windows specific. root_name() returns a drive letter
32 // (e.g. "c:") or a UNC name (//net). We want to keep it as part
33 // of the result.
34 SmallString<128> Res;
35 StringRef Root = path::root_name(Abs);
36 if (Root.endswith(":"))
37 Res = Root.drop_back();
38 else if (Root.startswith("//"))
39 Res = Root.substr(2);
40
41 path::append(Res, path::relative_path(Abs));
42 return path::convert_to_slash(Res);
43}
44
45// Quote a given string if it contains a space character.
46std::string lld::quote(StringRef S) {
47 if (S.find(' ') == StringRef::npos)
48 return S;
49 return ("\"" + S + "\"").str();
50}
51
52std::string lld::rewritePath(StringRef S) {
53 if (fs::exists(S))
54 return relativeToRoot(S);
55 return S;
56}
57
58std::string lld::toString(opt::Arg *Arg) {
59 std::string K = Arg->getSpelling();
60 if (Arg->getNumValues() == 0)
61 return K;
62 std::string V = quote(Arg->getValue());
63 if (Arg->getOption().getRenderStyle() == opt::Option::RenderJoinedStyle)
64 return K + V;
65 return K + " " + V;
66}
deps/lld/lib/Core/Resolver.cpp+3-3
...@@ -7,13 +7,13 @@...@@ -7,13 +7,13 @@
7//7//
8//===----------------------------------------------------------------------===//8//===----------------------------------------------------------------------===//
99
10#include "lld/Core/Atom.h"10#include "lld/Core/Resolver.h"
11#include "lld/Common/LLVM.h"
11#include "lld/Core/ArchiveLibraryFile.h"12#include "lld/Core/ArchiveLibraryFile.h"
13#include "lld/Core/Atom.h"
12#include "lld/Core/File.h"14#include "lld/Core/File.h"
13#include "lld/Core/Instrumentation.h"15#include "lld/Core/Instrumentation.h"
14#include "lld/Core/LLVM.h"
15#include "lld/Core/LinkingContext.h"16#include "lld/Core/LinkingContext.h"
16#include "lld/Core/Resolver.h"
17#include "lld/Core/SharedLibraryFile.h"17#include "lld/Core/SharedLibraryFile.h"
18#include "lld/Core/SymbolTable.h"18#include "lld/Core/SymbolTable.h"
19#include "lld/Core/UndefinedAtom.h"19#include "lld/Core/UndefinedAtom.h"
deps/lld/lib/Core/SymbolTable.cpp+1-1
...@@ -8,11 +8,11 @@...@@ -8,11 +8,11 @@
8//===----------------------------------------------------------------------===//8//===----------------------------------------------------------------------===//
99
10#include "lld/Core/SymbolTable.h"10#include "lld/Core/SymbolTable.h"
11#include "lld/Common/LLVM.h"
11#include "lld/Core/AbsoluteAtom.h"12#include "lld/Core/AbsoluteAtom.h"
12#include "lld/Core/Atom.h"13#include "lld/Core/Atom.h"
13#include "lld/Core/DefinedAtom.h"14#include "lld/Core/DefinedAtom.h"
14#include "lld/Core/File.h"15#include "lld/Core/File.h"
15#include "lld/Core/LLVM.h"
16#include "lld/Core/LinkingContext.h"16#include "lld/Core/LinkingContext.h"
17#include "lld/Core/Resolver.h"17#include "lld/Core/Resolver.h"
18#include "lld/Core/SharedLibraryAtom.h"18#include "lld/Core/SharedLibraryAtom.h"
deps/lld/lib/Core/TargetOptionsCommandFlags.cpp deleted-32
...@@ -1,32 +0,0 @@
1//===-- TargetOptionsCommandFlags.cpp ---------------------------*- C++ -*-===//
2//
3// The LLVM Linker
4//
5// This file is distributed under the University of Illinois Open Source
6// License. See LICENSE.TXT for details.
7//
8//===----------------------------------------------------------------------===//
9//
10// This file exists as a place for global variables defined in LLVM's
11// CodeGen/CommandFlags.h. By putting the resulting object file in
12// an archive and linking with it, the definitions will automatically be
13// included when needed and skipped when already present.
14//
15//===----------------------------------------------------------------------===//
16
17#include "lld/Core/TargetOptionsCommandFlags.h"
18
19#include "llvm/CodeGen/CommandFlags.h"
20#include "llvm/Target/TargetOptions.h"
21
22// Define an externally visible version of
23// InitTargetOptionsFromCodeGenFlags, so that its functionality can be
24// used without having to include llvm/CodeGen/CommandFlags.h, which
25// would lead to multiple definitions of the command line flags.
26llvm::TargetOptions lld::InitTargetOptionsFromCodeGenFlags() {
27 return ::InitTargetOptionsFromCodeGenFlags();
28}
29
30llvm::CodeModel::Model lld::GetCodeModelFromCMModel() {
31 return CMModel;
32}
deps/lld/lib/Driver/CMakeLists.txt+1-3
...@@ -9,14 +9,12 @@ add_lld_library(lldDriver...@@ -9,14 +9,12 @@ add_lld_library(lldDriver
9 ${LLD_INCLUDE_DIR}/lld/Driver9 ${LLD_INCLUDE_DIR}/lld/Driver
1010
11 LINK_COMPONENTS11 LINK_COMPONENTS
12 Object
13 Option12 Option
14 Support13 Support
1514
16 LINK_LIBS15 LINK_LIBS
17 lldConfig
18 lldMachO
19 lldCore16 lldCore
17 lldMachO
20 lldReaderWriter18 lldReaderWriter
21 lldYAML19 lldYAML
22 )20 )
deps/lld/lib/Driver/DarwinLdDriver.cpp+3-3
...@@ -13,11 +13,11 @@...@@ -13,11 +13,11 @@
13///13///
14//===----------------------------------------------------------------------===//14//===----------------------------------------------------------------------===//
1515
16#include "lld/Common/LLVM.h"
16#include "lld/Core/ArchiveLibraryFile.h"17#include "lld/Core/ArchiveLibraryFile.h"
17#include "lld/Core/Error.h"18#include "lld/Core/Error.h"
18#include "lld/Core/File.h"19#include "lld/Core/File.h"
19#include "lld/Core/Instrumentation.h"20#include "lld/Core/Instrumentation.h"
20#include "lld/Core/LLVM.h"
21#include "lld/Core/LinkingContext.h"21#include "lld/Core/LinkingContext.h"
22#include "lld/Core/Node.h"22#include "lld/Core/Node.h"
23#include "lld/Core/PassManager.h"23#include "lld/Core/PassManager.h"
...@@ -74,7 +74,7 @@ enum {...@@ -74,7 +74,7 @@ enum {
74#undef PREFIX74#undef PREFIX
7575
76// Create table mapping all options defined in DarwinLdOptions.td76// Create table mapping all options defined in DarwinLdOptions.td
77static const llvm::opt::OptTable::Info infoTable[] = {77static const llvm::opt::OptTable::Info InfoTable[] = {
78#define OPTION(PREFIX, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \78#define OPTION(PREFIX, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \
79 HELPTEXT, METAVAR, VALUES) \79 HELPTEXT, METAVAR, VALUES) \
80 {PREFIX, NAME, HELPTEXT, \80 {PREFIX, NAME, HELPTEXT, \
...@@ -88,7 +88,7 @@ static const llvm::opt::OptTable::Info infoTable[] = {...@@ -88,7 +88,7 @@ static const llvm::opt::OptTable::Info infoTable[] = {
88// Create OptTable class for parsing actual command line arguments88// Create OptTable class for parsing actual command line arguments
89class DarwinLdOptTable : public llvm::opt::OptTable {89class DarwinLdOptTable : public llvm::opt::OptTable {
90public:90public:
91 DarwinLdOptTable() : OptTable(infoTable) {}91 DarwinLdOptTable() : OptTable(InfoTable) {}
92};92};
9393
94static std::vector<std::unique_ptr<File>>94static std::vector<std::unique_ptr<File>>
deps/lld/lib/ReaderWriter/CMakeLists.txt-1
...@@ -17,5 +17,4 @@ add_lld_library(lldReaderWriter...@@ -17,5 +17,4 @@ add_lld_library(lldReaderWriter
1717
18 LINK_LIBS18 LINK_LIBS
19 lldCore19 lldCore
20 lldYAML
21 )20 )
deps/lld/lib/ReaderWriter/FileArchive.cpp+1-1
...@@ -7,9 +7,9 @@...@@ -7,9 +7,9 @@
7//7//
8//===----------------------------------------------------------------------===//8//===----------------------------------------------------------------------===//
99
10#include "lld/Common/LLVM.h"
10#include "lld/Core/ArchiveLibraryFile.h"11#include "lld/Core/ArchiveLibraryFile.h"
11#include "lld/Core/File.h"12#include "lld/Core/File.h"
12#include "lld/Core/LLVM.h"
13#include "lld/Core/Reader.h"13#include "lld/Core/Reader.h"
14#include "llvm/ADT/STLExtras.h"14#include "llvm/ADT/STLExtras.h"
15#include "llvm/ADT/StringRef.h"15#include "llvm/ADT/StringRef.h"
deps/lld/lib/ReaderWriter/MachO/ArchHandler.h+1-1
...@@ -13,7 +13,7 @@...@@ -13,7 +13,7 @@
13#include "Atoms.h"13#include "Atoms.h"
14#include "File.h"14#include "File.h"
15#include "MachONormalizedFile.h"15#include "MachONormalizedFile.h"
16#include "lld/Core/LLVM.h"16#include "lld/Common/LLVM.h"
17#include "lld/Core/Error.h"17#include "lld/Core/Error.h"
18#include "lld/Core/Reference.h"18#include "lld/Core/Reference.h"
19#include "lld/Core/Simple.h"19#include "lld/Core/Simple.h"
deps/lld/lib/ReaderWriter/MachO/ArchHandler_x86_64.cpp+1
...@@ -621,6 +621,7 @@ void ArchHandler_x86_64::applyFixupFinal(...@@ -621,6 +621,7 @@ void ArchHandler_x86_64::applyFixupFinal(
621 // Fall into llvm_unreachable().621 // Fall into llvm_unreachable().
622 break;622 break;
623 }623 }
624 llvm_unreachable("invalid x86_64 Reference Kind");
624}625}
625626
626void ArchHandler_x86_64::applyFixupRelocatable(const Reference &ref,627void ArchHandler_x86_64::applyFixupRelocatable(const Reference &ref,
deps/lld/lib/ReaderWriter/MachO/CMakeLists.txt+1-1
...@@ -21,9 +21,9 @@ add_lld_library(lldMachO...@@ -21,9 +21,9 @@ add_lld_library(lldMachO
2121
22 LINK_COMPONENTS22 LINK_COMPONENTS
23 DebugInfoDWARF23 DebugInfoDWARF
24 Demangle
24 Object25 Object
25 Support26 Support
26 Demangle
2727
28 LINK_LIBS28 LINK_LIBS
29 lldCore29 lldCore
deps/lld/lib/ReaderWriter/MachO/CompactUnwindPass.cpp+1-1
...@@ -17,9 +17,9 @@...@@ -17,9 +17,9 @@
17#include "File.h"17#include "File.h"
18#include "MachONormalizedFileBinaryUtils.h"18#include "MachONormalizedFileBinaryUtils.h"
19#include "MachOPasses.h"19#include "MachOPasses.h"
20#include "lld/Common/LLVM.h"
20#include "lld/Core/DefinedAtom.h"21#include "lld/Core/DefinedAtom.h"
21#include "lld/Core/File.h"22#include "lld/Core/File.h"
22#include "lld/Core/LLVM.h"
23#include "lld/Core/Reference.h"23#include "lld/Core/Reference.h"
24#include "lld/Core/Simple.h"24#include "lld/Core/Simple.h"
25#include "llvm/ADT/DenseMap.h"25#include "llvm/ADT/DenseMap.h"
deps/lld/lib/ReaderWriter/MachO/FlatNamespaceFile.h+2
...@@ -10,7 +10,9 @@...@@ -10,7 +10,9 @@
10#ifndef LLD_READER_WRITER_MACHO_FLAT_NAMESPACE_FILE_H10#ifndef LLD_READER_WRITER_MACHO_FLAT_NAMESPACE_FILE_H
11#define LLD_READER_WRITER_MACHO_FLAT_NAMESPACE_FILE_H11#define LLD_READER_WRITER_MACHO_FLAT_NAMESPACE_FILE_H
1212
13#include "Atoms.h"
13#include "lld/Core/SharedLibraryFile.h"14#include "lld/Core/SharedLibraryFile.h"
15#include "lld/ReaderWriter/MachOLinkingContext.h"
14#include "llvm/Support/Debug.h"16#include "llvm/Support/Debug.h"
1517
16namespace lld {18namespace lld {
deps/lld/lib/ReaderWriter/MachO/GOTPass.cpp+1-1
...@@ -35,9 +35,9 @@...@@ -35,9 +35,9 @@
35#include "ArchHandler.h"35#include "ArchHandler.h"
36#include "File.h"36#include "File.h"
37#include "MachOPasses.h"37#include "MachOPasses.h"
38#include "lld/Common/LLVM.h"
38#include "lld/Core/DefinedAtom.h"39#include "lld/Core/DefinedAtom.h"
39#include "lld/Core/File.h"40#include "lld/Core/File.h"
40#include "lld/Core/LLVM.h"
41#include "lld/Core/Reference.h"41#include "lld/Core/Reference.h"
42#include "lld/Core/Simple.h"42#include "lld/Core/Simple.h"
43#include "llvm/ADT/DenseMap.h"43#include "llvm/ADT/DenseMap.h"
deps/lld/lib/ReaderWriter/MachO/MachOLinkingContext.cpp+1-1
...@@ -14,11 +14,11 @@...@@ -14,11 +14,11 @@
14#include "MachONormalizedFile.h"14#include "MachONormalizedFile.h"
15#include "MachOPasses.h"15#include "MachOPasses.h"
16#include "SectCreateFile.h"16#include "SectCreateFile.h"
17#include "lld/Common/Driver.h"
17#include "lld/Core/ArchiveLibraryFile.h"18#include "lld/Core/ArchiveLibraryFile.h"
18#include "lld/Core/PassManager.h"19#include "lld/Core/PassManager.h"
19#include "lld/Core/Reader.h"20#include "lld/Core/Reader.h"
20#include "lld/Core/Writer.h"21#include "lld/Core/Writer.h"
21#include "lld/Driver/Driver.h"
22#include "llvm/ADT/STLExtras.h"22#include "llvm/ADT/STLExtras.h"
23#include "llvm/ADT/StringExtras.h"23#include "llvm/ADT/StringExtras.h"
24#include "llvm/ADT/Triple.h"24#include "llvm/ADT/Triple.h"
deps/lld/lib/ReaderWriter/MachO/MachONormalizedFile.h+1-10
...@@ -43,8 +43,8 @@...@@ -43,8 +43,8 @@
43#define LLD_READER_WRITER_MACHO_NORMALIZE_FILE_H43#define LLD_READER_WRITER_MACHO_NORMALIZE_FILE_H
4444
45#include "DebugInfo.h"45#include "DebugInfo.h"
46#include "lld/Common/LLVM.h"
46#include "lld/Core/Error.h"47#include "lld/Core/Error.h"
47#include "lld/Core/LLVM.h"
48#include "lld/ReaderWriter/MachOLinkingContext.h"48#include "lld/ReaderWriter/MachOLinkingContext.h"
49#include "llvm/ADT/SmallString.h"49#include "llvm/ADT/SmallString.h"
50#include "llvm/ADT/StringRef.h"50#include "llvm/ADT/StringRef.h"
...@@ -124,15 +124,6 @@ struct Section {...@@ -124,15 +124,6 @@ struct Section {
124 ArrayRef<uint8_t> content;124 ArrayRef<uint8_t> content;
125 Relocations relocations;125 Relocations relocations;
126 IndirectSymbols indirectSymbols;126 IndirectSymbols indirectSymbols;
127
128#ifndef NDEBUG
129 raw_ostream& operator<<(raw_ostream &OS) const {
130 dump(OS);
131 return OS;
132 }
133
134 void dump(raw_ostream &OS = llvm::dbgs()) const;
135#endif
136};127};
137128
138129
deps/lld/lib/ReaderWriter/MachO/MachONormalizedFileBinaryReader.cpp+5-2
...@@ -24,8 +24,8 @@...@@ -24,8 +24,8 @@
24#include "ArchHandler.h"24#include "ArchHandler.h"
25#include "MachONormalizedFile.h"25#include "MachONormalizedFile.h"
26#include "MachONormalizedFileBinaryUtils.h"26#include "MachONormalizedFileBinaryUtils.h"
27#include "lld/Common/LLVM.h"
27#include "lld/Core/Error.h"28#include "lld/Core/Error.h"
28#include "lld/Core/LLVM.h"
29#include "lld/Core/SharedLibraryFile.h"29#include "lld/Core/SharedLibraryFile.h"
30#include "llvm/ADT/STLExtras.h"30#include "llvm/ADT/STLExtras.h"
31#include "llvm/ADT/SmallString.h"31#include "llvm/ADT/SmallString.h"
...@@ -511,7 +511,8 @@ readBinary(std::unique_ptr<MemoryBuffer> &mb,...@@ -511,7 +511,8 @@ readBinary(std::unique_ptr<MemoryBuffer> &mb,
511 const uint8_t *trieStart = reinterpret_cast<const uint8_t *>(511 const uint8_t *trieStart = reinterpret_cast<const uint8_t *>(
512 start + read32(&dyldInfo->export_off, isBig));512 start + read32(&dyldInfo->export_off, isBig));
513 ArrayRef<uint8_t> trie(trieStart, read32(&dyldInfo->export_size, isBig));513 ArrayRef<uint8_t> trie(trieStart, read32(&dyldInfo->export_size, isBig));
514 for (const ExportEntry &trieExport : MachOObjectFile::exports(trie)) {514 Error Err = Error::success();
515 for (const ExportEntry &trieExport : MachOObjectFile::exports(Err, trie)) {
515 Export normExport;516 Export normExport;
516 normExport.name = trieExport.name().copy(f->ownedAllocations);517 normExport.name = trieExport.name().copy(f->ownedAllocations);
517 normExport.offset = trieExport.address();518 normExport.offset = trieExport.address();
...@@ -522,6 +523,8 @@ readBinary(std::unique_ptr<MemoryBuffer> &mb,...@@ -522,6 +523,8 @@ readBinary(std::unique_ptr<MemoryBuffer> &mb,
522 normExport.otherName = trieExport.otherName().copy(f->ownedAllocations);523 normExport.otherName = trieExport.otherName().copy(f->ownedAllocations);
523 f->exportInfo.push_back(normExport);524 f->exportInfo.push_back(normExport);
524 }525 }
526 if (Err)
527 return std::move(Err);
525 }528 }
526 }529 }
527530
deps/lld/lib/ReaderWriter/MachO/MachONormalizedFileBinaryUtils.h+1-1
...@@ -11,8 +11,8 @@...@@ -11,8 +11,8 @@
11#define LLD_READER_WRITER_MACHO_NORMALIZED_FILE_BINARY_UTILS_H11#define LLD_READER_WRITER_MACHO_NORMALIZED_FILE_BINARY_UTILS_H
1212
13#include "MachONormalizedFile.h"13#include "MachONormalizedFile.h"
14#include "lld/Common/LLVM.h"
14#include "lld/Core/Error.h"15#include "lld/Core/Error.h"
15#include "lld/Core/LLVM.h"
16#include "llvm/ADT/StringRef.h"16#include "llvm/ADT/StringRef.h"
17#include "llvm/BinaryFormat/MachO.h"17#include "llvm/BinaryFormat/MachO.h"
18#include "llvm/Support/Casting.h"18#include "llvm/Support/Casting.h"
deps/lld/lib/ReaderWriter/MachO/MachONormalizedFileBinaryWriter.cpp+6-5
...@@ -23,8 +23,8 @@...@@ -23,8 +23,8 @@
2323
24#include "MachONormalizedFile.h"24#include "MachONormalizedFile.h"
25#include "MachONormalizedFileBinaryUtils.h"25#include "MachONormalizedFileBinaryUtils.h"
26#include "lld/Common/LLVM.h"
26#include "lld/Core/Error.h"27#include "lld/Core/Error.h"
27#include "lld/Core/LLVM.h"
28#include "llvm/ADT/SmallString.h"28#include "llvm/ADT/SmallString.h"
29#include "llvm/ADT/SmallVector.h"29#include "llvm/ADT/SmallVector.h"
30#include "llvm/ADT/StringRef.h"30#include "llvm/ADT/StringRef.h"
...@@ -1523,10 +1523,10 @@ llvm::Error MachOFileLayout::writeBinary(StringRef path) {...@@ -1523,10 +1523,10 @@ llvm::Error MachOFileLayout::writeBinary(StringRef path) {
1523 unsigned flags = 0;1523 unsigned flags = 0;
1524 if (_file.fileType != llvm::MachO::MH_OBJECT)1524 if (_file.fileType != llvm::MachO::MH_OBJECT)
1525 flags = llvm::FileOutputBuffer::F_executable;1525 flags = llvm::FileOutputBuffer::F_executable;
1526 ErrorOr<std::unique_ptr<llvm::FileOutputBuffer>> fobOrErr =1526 Expected<std::unique_ptr<llvm::FileOutputBuffer>> fobOrErr =
1527 llvm::FileOutputBuffer::create(path, size(), flags);1527 llvm::FileOutputBuffer::create(path, size(), flags);
1528 if (std::error_code ec = fobOrErr.getError())1528 if (Error E = fobOrErr.takeError())
1529 return llvm::errorCodeToError(ec);1529 return E;
1530 std::unique_ptr<llvm::FileOutputBuffer> &fob = *fobOrErr;1530 std::unique_ptr<llvm::FileOutputBuffer> &fob = *fobOrErr;
1531 // Write content.1531 // Write content.
1532 _buffer = fob->getBufferStart();1532 _buffer = fob->getBufferStart();
...@@ -1535,7 +1535,8 @@ llvm::Error MachOFileLayout::writeBinary(StringRef path) {...@@ -1535,7 +1535,8 @@ llvm::Error MachOFileLayout::writeBinary(StringRef path) {
1535 return ec;1535 return ec;
1536 writeSectionContent();1536 writeSectionContent();
1537 writeLinkEditContent();1537 writeLinkEditContent();
1538 fob->commit();1538 if (Error E = fob->commit())
1539 return E;
15391540
1540 return llvm::Error::success();1541 return llvm::Error::success();
1541}1542}
deps/lld/lib/ReaderWriter/MachO/MachONormalizedFileFromAtoms.cpp+1-1
...@@ -24,8 +24,8 @@...@@ -24,8 +24,8 @@
24#include "DebugInfo.h"24#include "DebugInfo.h"
25#include "MachONormalizedFile.h"25#include "MachONormalizedFile.h"
26#include "MachONormalizedFileBinaryUtils.h"26#include "MachONormalizedFileBinaryUtils.h"
27#include "lld/Common/LLVM.h"
27#include "lld/Core/Error.h"28#include "lld/Core/Error.h"
28#include "lld/Core/LLVM.h"
29#include "llvm/ADT/StringRef.h"29#include "llvm/ADT/StringRef.h"
30#include "llvm/ADT/StringSwitch.h"30#include "llvm/ADT/StringSwitch.h"
31#include "llvm/BinaryFormat/MachO.h"31#include "llvm/BinaryFormat/MachO.h"
deps/lld/lib/ReaderWriter/MachO/MachONormalizedFileToAtoms.cpp+1-1
...@@ -25,8 +25,8 @@...@@ -25,8 +25,8 @@
25#include "File.h"25#include "File.h"
26#include "MachONormalizedFile.h"26#include "MachONormalizedFile.h"
27#include "MachONormalizedFileBinaryUtils.h"27#include "MachONormalizedFileBinaryUtils.h"
28#include "lld/Common/LLVM.h"
28#include "lld/Core/Error.h"29#include "lld/Core/Error.h"
29#include "lld/Core/LLVM.h"
30#include "llvm/BinaryFormat/Dwarf.h"30#include "llvm/BinaryFormat/Dwarf.h"
31#include "llvm/BinaryFormat/MachO.h"31#include "llvm/BinaryFormat/MachO.h"
32#include "llvm/DebugInfo/DWARF/DWARFFormValue.h"32#include "llvm/DebugInfo/DWARF/DWARFFormValue.h"
deps/lld/lib/ReaderWriter/MachO/MachONormalizedFileYAML.cpp+4-4
...@@ -16,8 +16,8 @@...@@ -16,8 +16,8 @@
16/// +------------+ +------+16/// +------------+ +------+
1717
18#include "MachONormalizedFile.h"18#include "MachONormalizedFile.h"
19#include "lld/Common/LLVM.h"
19#include "lld/Core/Error.h"20#include "lld/Core/Error.h"
20#include "lld/Core/LLVM.h"
21#include "lld/ReaderWriter/YamlContext.h"21#include "lld/ReaderWriter/YamlContext.h"
22#include "llvm/ADT/SmallString.h"22#include "llvm/ADT/SmallString.h"
23#include "llvm/ADT/StringRef.h"23#include "llvm/ADT/StringRef.h"
...@@ -257,7 +257,7 @@ template <> struct ScalarTraits<SectionAlignment> {...@@ -257,7 +257,7 @@ template <> struct ScalarTraits<SectionAlignment> {
257 return StringRef(); // returning empty string means success257 return StringRef(); // returning empty string means success
258 }258 }
259259
260 static bool mustQuote(StringRef) { return false; }260 static QuotingType mustQuote(StringRef) { return QuotingType::None; }
261};261};
262262
263template <>263template <>
...@@ -522,7 +522,7 @@ struct ScalarTraits<VMProtect> {...@@ -522,7 +522,7 @@ struct ScalarTraits<VMProtect> {
522 // Return the empty string on success,522 // Return the empty string on success,
523 return StringRef();523 return StringRef();
524 }524 }
525 static bool mustQuote(StringRef) { return false; }525 static QuotingType mustQuote(StringRef) { return QuotingType::None; }
526};526};
527527
528528
...@@ -706,7 +706,7 @@ struct ScalarTraits<PackedVersion> {...@@ -706,7 +706,7 @@ struct ScalarTraits<PackedVersion> {
706 // Return the empty string on success,706 // Return the empty string on success,
707 return StringRef();707 return StringRef();
708 }708 }
709 static bool mustQuote(StringRef) { return false; }709 static QuotingType mustQuote(StringRef) { return QuotingType::None; }
710};710};
711711
712template <>712template <>
deps/lld/lib/ReaderWriter/MachO/ObjCPass.cpp+1-1
...@@ -13,9 +13,9 @@...@@ -13,9 +13,9 @@
13#include "File.h"13#include "File.h"
14#include "MachONormalizedFileBinaryUtils.h"14#include "MachONormalizedFileBinaryUtils.h"
15#include "MachOPasses.h"15#include "MachOPasses.h"
16#include "lld/Common/LLVM.h"
16#include "lld/Core/DefinedAtom.h"17#include "lld/Core/DefinedAtom.h"
17#include "lld/Core/File.h"18#include "lld/Core/File.h"
18#include "lld/Core/LLVM.h"
19#include "lld/Core/Reference.h"19#include "lld/Core/Reference.h"
20#include "lld/Core/Simple.h"20#include "lld/Core/Simple.h"
21#include "lld/ReaderWriter/MachOLinkingContext.h"21#include "lld/ReaderWriter/MachOLinkingContext.h"
deps/lld/lib/ReaderWriter/MachO/ShimPass.cpp+1-1
...@@ -26,9 +26,9 @@...@@ -26,9 +26,9 @@
26#include "ArchHandler.h"26#include "ArchHandler.h"
27#include "File.h"27#include "File.h"
28#include "MachOPasses.h"28#include "MachOPasses.h"
29#include "lld/Common/LLVM.h"
29#include "lld/Core/DefinedAtom.h"30#include "lld/Core/DefinedAtom.h"
30#include "lld/Core/File.h"31#include "lld/Core/File.h"
31#include "lld/Core/LLVM.h"
32#include "lld/Core/Reference.h"32#include "lld/Core/Reference.h"
33#include "lld/Core/Simple.h"33#include "lld/Core/Simple.h"
34#include "lld/ReaderWriter/MachOLinkingContext.h"34#include "lld/ReaderWriter/MachOLinkingContext.h"
deps/lld/lib/ReaderWriter/MachO/StubsPass.cpp+1-1
...@@ -17,9 +17,9 @@...@@ -17,9 +17,9 @@
17#include "ArchHandler.h"17#include "ArchHandler.h"
18#include "File.h"18#include "File.h"
19#include "MachOPasses.h"19#include "MachOPasses.h"
20#include "lld/Common/LLVM.h"
20#include "lld/Core/DefinedAtom.h"21#include "lld/Core/DefinedAtom.h"
21#include "lld/Core/File.h"22#include "lld/Core/File.h"
22#include "lld/Core/LLVM.h"
23#include "lld/Core/Reference.h"23#include "lld/Core/Reference.h"
24#include "lld/Core/Simple.h"24#include "lld/Core/Simple.h"
25#include "lld/ReaderWriter/MachOLinkingContext.h"25#include "lld/ReaderWriter/MachOLinkingContext.h"
deps/lld/lib/ReaderWriter/YAML/ReaderWriterYAML.cpp+3-3
...@@ -280,7 +280,7 @@ template <> struct ScalarTraits<RefKind> {...@@ -280,7 +280,7 @@ template <> struct ScalarTraits<RefKind> {
280 return StringRef("unknown reference kind");280 return StringRef("unknown reference kind");
281 }281 }
282282
283 static bool mustQuote(StringRef) { return false; }283 static QuotingType mustQuote(StringRef) { return QuotingType::None; }
284};284};
285285
286template <> struct ScalarEnumerationTraits<lld::File::Kind> {286template <> struct ScalarEnumerationTraits<lld::File::Kind> {
...@@ -495,7 +495,7 @@ template <> struct ScalarTraits<lld::DefinedAtom::Alignment> {...@@ -495,7 +495,7 @@ template <> struct ScalarTraits<lld::DefinedAtom::Alignment> {
495 return StringRef(); // returning empty string means success495 return StringRef(); // returning empty string means success
496 }496 }
497497
498 static bool mustQuote(StringRef) { return false; }498 static QuotingType mustQuote(StringRef) { return QuotingType::None; }
499};499};
500500
501template <> struct ScalarEnumerationTraits<FileKinds> {501template <> struct ScalarEnumerationTraits<FileKinds> {
...@@ -552,7 +552,7 @@ template <> struct ScalarTraits<ImplicitHex8> {...@@ -552,7 +552,7 @@ template <> struct ScalarTraits<ImplicitHex8> {
552 return StringRef(); // returning empty string means success552 return StringRef(); // returning empty string means success
553 }553 }
554554
555 static bool mustQuote(StringRef) { return false; }555 static QuotingType mustQuote(StringRef) { return QuotingType::None; }
556};556};
557557
558// YAML conversion for std::vector<const lld::File*>558// YAML conversion for std::vector<const lld::File*>
deps/lld/test/CMakeLists.txt+10-5
...@@ -17,18 +17,23 @@ llvm_canonicalize_cmake_booleans(...@@ -17,18 +17,23 @@ llvm_canonicalize_cmake_booleans(
17 HAVE_LIBZ)17 HAVE_LIBZ)
1818
19configure_lit_site_cfg(19configure_lit_site_cfg(
20 ${CMAKE_CURRENT_SOURCE_DIR}/lit.site.cfg.in20 ${CMAKE_CURRENT_SOURCE_DIR}/lit.site.cfg.py.in
21 ${CMAKE_CURRENT_BINARY_DIR}/lit.site.cfg)21 ${CMAKE_CURRENT_BINARY_DIR}/lit.site.cfg.py
22 MAIN_CONFIG
23 ${CMAKE_CURRENT_SOURCE_DIR}/lit.cfg.py
24 )
22configure_lit_site_cfg(25configure_lit_site_cfg(
23 ${CMAKE_CURRENT_SOURCE_DIR}/Unit/lit.site.cfg.in26 ${CMAKE_CURRENT_SOURCE_DIR}/Unit/lit.site.cfg.py.in
24 ${CMAKE_CURRENT_BINARY_DIR}/Unit/lit.site.cfg27 ${CMAKE_CURRENT_BINARY_DIR}/Unit/lit.site.cfg.py
28 MAIN_CONFIG
29 ${CMAKE_CURRENT_SOURCE_DIR}/Unit/lit.cfg.py
25 )30 )
2631
27set(LLD_TEST_DEPS lld)32set(LLD_TEST_DEPS lld)
28if (NOT LLD_BUILT_STANDALONE)33if (NOT LLD_BUILT_STANDALONE)
29 list(APPEND LLD_TEST_DEPS34 list(APPEND LLD_TEST_DEPS
30 FileCheck count not llvm-ar llvm-as llvm-dis llvm-dwarfdump llvm-nm35 FileCheck count not llvm-ar llvm-as llvm-dis llvm-dwarfdump llvm-nm
31 llc llvm-config llvm-objdump llvm-readobj yaml2obj obj2yaml36 llc llvm-config llvm-objdump llvm-readelf llvm-readobj yaml2obj obj2yaml
32 llvm-mc llvm-lib llvm-pdbutil opt37 llvm-mc llvm-lib llvm-pdbutil opt
33 )38 )
34endif()39endif()
deps/lld/test/COFF/Inputs/alpha.ll created+9
...@@ -0,0 +1,9 @@
1define void @_DllMainCRTStartup() {
2entry:
3 ret void
4}
5
6define dllexport void @f() local_unnamed_addr {
7entry:
8 ret void
9}
deps/lld/test/COFF/Inputs/beta.ll created+7
...@@ -0,0 +1,7 @@
1declare dllimport void @f() local_unnamed_addr
2
3define void @g() local_unnamed_addr {
4entry:
5 tail call void @f()
6 ret void
7}
deps/lld/test/COFF/Inputs/except_handler3.lib created
Binary files /dev/null and b/deps/lld/test/COFF/Inputs/except_handler3.lib differ
deps/lld/test/COFF/Inputs/far-arm-thumb-abs20.s created+2
...@@ -0,0 +1,2 @@
1.global too_far20
2too_far20 = 0x501004
deps/lld/test/COFF/Inputs/gamma.ll created+14
...@@ -0,0 +1,14 @@
1
2declare void @f() local_unnamed_addr
3
4define void @__imp_f() local_unnamed_addr {
5entry:
6 ret void
7}
8
9define void @mainCRTStartup() local_unnamed_addr {
10entry:
11 tail call void @f()
12 ret void
13}
14
deps/lld/test/COFF/Inputs/library2-arm64.lib created
Binary files /dev/null and b/deps/lld/test/COFF/Inputs/library2-arm64.lib differ
deps/lld/test/COFF/Inputs/library2.def created+3
...@@ -0,0 +1,3 @@
1LIBRARY library2
2EXPORTS
3 function2
deps/lld/test/COFF/Inputs/locally-imported-def.s created+4
...@@ -0,0 +1,4 @@
1.text
2.globl f
3f:
4 ret
deps/lld/test/COFF/Inputs/locally-imported-imp.s created+2
...@@ -0,0 +1,2 @@
1.text
2 call __imp_f
deps/lld/test/COFF/Inputs/lto-cache.ll created+10
...@@ -0,0 +1,10 @@
1target datalayout = "e-m:w-i64:64-f80:128-n8:16:32:64-S128"
2target triple = "x86_64-pc-windows-msvc"
3
4define i32 @main() {
5entry:
6 call void (...) @globalfunc()
7 ret i32 0
8}
9
10declare void @globalfunc(...)
deps/lld/test/COFF/Inputs/pdb-globals.yaml created+593
...@@ -0,0 +1,593 @@
1# // YAML Generated from the following source code:
2# // Compile with clang-cl /Z7 /GS- /c t.obj pdb-globals.cpp
3#
4# void *__purecall = 0;
5#
6# struct HelloPoint {
7# int X = 3;
8# int Y = 4;
9# int Z = 5;
10# };
11#
12# // S_LPROCREF
13# static int LocalFunc() { return 42; }
14#
15# // S_PROCREF
16# int GlobalFunc() { return 43; }
17#
18# // S_LDATA32
19# const int ConstantVar = 17;
20#
21# // S_GDATA32
22# const int *GlobalVar = &ConstantVar;
23#
24# // S_CONSTANT
25# constexpr int ConstexprVar = 18;
26#
27# // S_UDT
28# typedef HelloPoint HelloPointTypedef;
29#
30# int main(int argc, char **argv) {
31# HelloPointTypedef P;
32# int N = P.X + P.Y + P.Z;
33# N += LocalFunc() + GlobalFunc();
34# N += *GlobalVar;
35# N += ConstexprVar;
36# }
37
38
39--- !COFF
40header:
41 Machine: IMAGE_FILE_MACHINE_I386
42 Characteristics: [ ]
43sections:
44 - Name: .text
45 Characteristics: [ IMAGE_SCN_CNT_CODE, IMAGE_SCN_MEM_EXECUTE, IMAGE_SCN_MEM_READ ]
46 Alignment: 16
47 SectionData: 5589E5B82B0000005DC3660F1F4400005589E583EC208B450C8B4D088D55F4894DEC89D18945E8E8000000008B4DF4034DF8034DFC894DF08945E4E8000000008945E0E80000000031C98B55E001C20355F08955F0A1000000008B000345F08945F08B45F083C0128945F089C883C4205DC366666666662E0F1F8400000000005589E5B82A0000005DC3
48 Relocations:
49 - VirtualAddress: 40
50 SymbolName: '??0HelloPoint@@QAE@XZ'
51 Type: IMAGE_REL_I386_REL32
52 - VirtualAddress: 60
53 SymbolName: '?LocalFunc@@YAHXZ'
54 Type: IMAGE_REL_I386_REL32
55 - VirtualAddress: 68
56 SymbolName: '?GlobalFunc@@YAHXZ'
57 Type: IMAGE_REL_I386_REL32
58 - VirtualAddress: 86
59 SymbolName: '?GlobalVar@@3PBHB'
60 Type: IMAGE_REL_I386_DIR32
61 - Name: .data
62 Characteristics: [ IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_READ, IMAGE_SCN_MEM_WRITE ]
63 Alignment: 4
64 SectionData: '00000000'
65 Relocations:
66 - VirtualAddress: 0
67 SymbolName: _ConstantVar
68 Type: IMAGE_REL_I386_DIR32
69 - Name: .bss
70 Characteristics: [ IMAGE_SCN_CNT_UNINITIALIZED_DATA, IMAGE_SCN_MEM_READ, IMAGE_SCN_MEM_WRITE ]
71 Alignment: 4
72 SectionData: ''
73 - Name: .text
74 Characteristics: [ IMAGE_SCN_CNT_CODE, IMAGE_SCN_LNK_COMDAT, IMAGE_SCN_MEM_EXECUTE, IMAGE_SCN_MEM_READ ]
75 Alignment: 16
76 SectionData: 5589E550894DFC8B4DFCC70103000000C7410404000000C741080500000089C883C4045DC3
77 - Name: .rdata
78 Characteristics: [ IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_READ ]
79 Alignment: 4
80 SectionData: '11000000'
81 - Name: .drectve
82 Characteristics: [ IMAGE_SCN_LNK_INFO, IMAGE_SCN_LNK_REMOVE ]
83 Alignment: 1
84 SectionData: 202F44454641554C544C49423A6C6962636D742E6C6962202F44454641554C544C49423A6F6C646E616D65732E6C6962
85 - Name: '.debug$S'
86 Characteristics: [ IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_DISCARDABLE, IMAGE_SCN_MEM_READ ]
87 Alignment: 4
88 SectionData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
89 Subsections:
90 - !Symbols
91 Records:
92 - Kind: S_COMPILE3
93 Compile3Sym:
94 Flags: [ ]
95 Machine: Pentium3
96 FrontendMajor: 6
97 FrontendMinor: 0
98 FrontendBuild: 0
99 FrontendQFE: 0
100 BackendMajor: 6000
101 BackendMinor: 0
102 BackendBuild: 0
103 BackendQFE: 0
104 Version: 'clang version 6.0.0 '
105 - Kind: S_GPROC32_ID
106 ProcSym:
107 CodeSize: 10
108 DbgStart: 0
109 DbgEnd: 0
110 FunctionType: 4098
111 Flags: [ ]
112 DisplayName: GlobalFunc
113 - Kind: S_PROC_ID_END
114 ScopeEndSym:
115 - Kind: S_GPROC32_ID
116 ProcSym:
117 CodeSize: 98
118 DbgStart: 0
119 DbgEnd: 0
120 FunctionType: 4102
121 Flags: [ ]
122 DisplayName: main
123 - Kind: S_LOCAL
124 LocalSym:
125 Type: 116
126 Flags: [ IsParameter ]
127 VarName: argc
128 - Kind: S_DEFRANGE_REGISTER_REL
129 DefRangeRegisterRelSym:
130 - Kind: S_LOCAL
131 LocalSym:
132 Type: 4099
133 Flags: [ IsParameter ]
134 VarName: argv
135 - Kind: S_DEFRANGE_REGISTER_REL
136 DefRangeRegisterRelSym:
137 - Kind: S_LOCAL
138 LocalSym:
139 Type: 4103
140 Flags: [ ]
141 VarName: P
142 - Kind: S_DEFRANGE_REGISTER_REL
143 DefRangeRegisterRelSym:
144 - Kind: S_LOCAL
145 LocalSym:
146 Type: 116
147 Flags: [ ]
148 VarName: N
149 - Kind: S_DEFRANGE_REGISTER_REL
150 DefRangeRegisterRelSym:
151 - Kind: S_PROC_ID_END
152 ScopeEndSym:
153 - Kind: S_LPROC32_ID
154 ProcSym:
155 CodeSize: 10
156 DbgStart: 0
157 DbgEnd: 0
158 FunctionType: 4111
159 Flags: [ ]
160 DisplayName: LocalFunc
161 - Kind: S_PROC_ID_END
162 ScopeEndSym:
163 - Kind: S_GDATA32
164 DataSym:
165 Type: 1027
166 DisplayName: __purecall
167 - Kind: S_GDATA32
168 DataSym:
169 Type: 4113
170 DisplayName: GlobalVar
171 - Kind: S_LDATA32
172 DataSym:
173 Type: 4112
174 DisplayName: ConstantVar
175 - Kind: S_UDT
176 UDTSym:
177 Type: 4103
178 UDTName: HelloPointTypedef
179 - Kind: S_UDT
180 UDTSym:
181 Type: 4105
182 UDTName: HelloPoint
183 - !FileChecksums
184 Checksums:
185 - FileName: 'd:\src\llvm-mono\lld\test\coff\inputs\pdb-globals.cpp'
186 Kind: None
187 Checksum: ''
188 - !StringTable
189 Strings:
190 - 'd:\src\llvm-mono\lld\test\coff\inputs\pdb-globals.cpp'
191 - ''
192 Relocations:
193 - VirtualAddress: 100
194 SymbolName: '?GlobalFunc@@YAHXZ'
195 Type: IMAGE_REL_I386_SECREL
196 - VirtualAddress: 104
197 SymbolName: '?GlobalFunc@@YAHXZ'
198 Type: IMAGE_REL_I386_SECTION
199 - VirtualAddress: 132
200 SymbolName: '?GlobalFunc@@YAHXZ'
201 Type: IMAGE_REL_I386_SECREL
202 - VirtualAddress: 136
203 SymbolName: '?GlobalFunc@@YAHXZ'
204 Type: IMAGE_REL_I386_SECTION
205 - VirtualAddress: 204
206 SymbolName: _main
207 Type: IMAGE_REL_I386_SECREL
208 - VirtualAddress: 208
209 SymbolName: _main
210 Type: IMAGE_REL_I386_SECTION
211 - VirtualAddress: 243
212 SymbolName: .text
213 Type: IMAGE_REL_I386_SECREL
214 - VirtualAddress: 247
215 SymbolName: .text
216 Type: IMAGE_REL_I386_SECTION
217 - VirtualAddress: 278
218 SymbolName: .text
219 Type: IMAGE_REL_I386_SECREL
220 - VirtualAddress: 282
221 SymbolName: .text
222 Type: IMAGE_REL_I386_SECTION
223 - VirtualAddress: 310
224 SymbolName: .text
225 Type: IMAGE_REL_I386_SECREL
226 - VirtualAddress: 314
227 SymbolName: .text
228 Type: IMAGE_REL_I386_SECTION
229 - VirtualAddress: 342
230 SymbolName: .text
231 Type: IMAGE_REL_I386_SECREL
232 - VirtualAddress: 346
233 SymbolName: .text
234 Type: IMAGE_REL_I386_SECTION
235 - VirtualAddress: 364
236 SymbolName: _main
237 Type: IMAGE_REL_I386_SECREL
238 - VirtualAddress: 368
239 SymbolName: _main
240 Type: IMAGE_REL_I386_SECTION
241 - VirtualAddress: 484
242 SymbolName: '?LocalFunc@@YAHXZ'
243 Type: IMAGE_REL_I386_SECREL
244 - VirtualAddress: 488
245 SymbolName: '?LocalFunc@@YAHXZ'
246 Type: IMAGE_REL_I386_SECTION
247 - VirtualAddress: 516
248 SymbolName: '?LocalFunc@@YAHXZ'
249 Type: IMAGE_REL_I386_SECREL
250 - VirtualAddress: 520
251 SymbolName: '?LocalFunc@@YAHXZ'
252 Type: IMAGE_REL_I386_SECTION
253 - VirtualAddress: 564
254 SymbolName: '?__purecall@@3PAXA'
255 Type: IMAGE_REL_I386_SECREL
256 - VirtualAddress: 568
257 SymbolName: '?__purecall@@3PAXA'
258 Type: IMAGE_REL_I386_SECTION
259 - VirtualAddress: 589
260 SymbolName: '?GlobalVar@@3PBHB'
261 Type: IMAGE_REL_I386_SECREL
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540...
deps/lld/test/COFF/Inputs/pdb-hashes-2-missing.yaml created+321
...@@ -0,0 +1,321 @@
1--- !COFF
2header:
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321...
deps/lld/test/COFF/Inputs/pdb-hashes-2.yaml created+355
...@@ -0,0 +1,355 @@
1--- !COFF
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268 String: '-c -Z7 -MT -IC:\PROGRA~2\MICROS~1.0\VC\include -IC:\PROGRA~2\MICROS~1.0\VC\atlmfc\include -IC:\PROGRA~2\WI3CF2~1\10\include\10.0.14393.0\ucrt -IC:\PROGRA~2\WI3CF2~1\10\include\10.0.14393.0\shared -IC:\PROGRA~2\WI3CF2~1\10\include\10.0.14393.0\um'268 String: '-c -Z7 -MT -IC:\PROGRA~2\MICROS~1.0\VC\include -IC:\PROGRA~2\MICROS~1.0\VC\atlmfc\include -IC:\PROGRA~2\WI3CF2~1\10\include\10.0.14393.0\ucrt -IC:\PROGRA~2\WI3CF2~1\10\include\10.0.14393.0\shared -IC:\PROGRA~2\WI3CF2~1\10\include\10.0.14393.0\um'
269 - Kind: LF_SUBSTR_LIST269 - Kind: LF_SUBSTR_LIST
270 StringList: 270 StringList:
271 StringIndices: [ 4105 ]271 StringIndices: [ 4105 ]
272 - Kind: LF_STRING_ID272 - Kind: LF_STRING_ID
273 StringId: 273 StringId:
274 Id: 4106274 Id: 4106
275 String: ' -IC:\PROGRA~2\WI3CF2~1\10\include\10.0.14393.0\winrt -TC -X'275 String: ' -IC:\PROGRA~2\WI3CF2~1\10\include\10.0.14393.0\winrt -TC -X'
276 - Kind: LF_STRING_ID276 - Kind: LF_STRING_ID
277 StringId: 277 StringId:
278 Id: 0278 Id: 0
279 String: a.c279 String: a.c
280 - Kind: LF_STRING_ID280 - Kind: LF_STRING_ID
281 StringId: 281 StringId:
282 Id: 0282 Id: 0
283 String: 'C:\src\llvm-project\build\vc140.pdb'283 String: 'C:\src\llvm-project\build\vc140.pdb'
284 - Kind: LF_BUILDINFO284 - Kind: LF_BUILDINFO
285 BuildInfo: 285 BuildInfo:
286 ArgIndices: [ 4103, 4104, 4108, 4109, 4107 ]286 ArgIndices: [ 4103, 4104, 4108, 4109, 4107 ]
287 - Name: '.text$mn'287 - Name: '.text$mn'
288 Characteristics: [ IMAGE_SCN_CNT_CODE, IMAGE_SCN_MEM_EXECUTE, IMAGE_SCN_MEM_READ ]288 Characteristics: [ IMAGE_SCN_CNT_CODE, IMAGE_SCN_MEM_EXECUTE, IMAGE_SCN_MEM_READ ]
289 Alignment: 16289 Alignment: 16
290 SectionData: 894C2408C3CCCCCCCCCCCCCCCCCCCCCC894C24084883EC38837C2440007413C74424202A0000008B4C2420E800000000EB11C74424240D0000008B4C2424E80000000033C04883C438C3290 SectionData: 894C2408C3CCCCCCCCCCCCCCCCCCCCCC894C24084883EC38837C2440007413C74424202A0000008B4C2420E800000000EB11C74424240D0000008B4C2424E80000000033C04883C438C3
291 Relocations: 291 Relocations:
292 - VirtualAddress: 44292 - VirtualAddress: 44
293 SymbolName: f293 SymbolName: f
294 Type: IMAGE_REL_AMD64_REL32294 Type: IMAGE_REL_AMD64_REL32
...@@ -303,7 +303,7 @@ sections:...@@ -303,7 +303,7 @@ sections:
303 Characteristics: [ IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_READ ]303 Characteristics: [ IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_READ ]
304 Alignment: 4304 Alignment: 4
305 SectionData: 000000003A00000000000000305 SectionData: 000000003A00000000000000
306 Relocations: 306 Relocations:
307 - VirtualAddress: 0307 - VirtualAddress: 0
308 SymbolName: '$LN5'308 SymbolName: '$LN5'
309 Type: IMAGE_REL_AMD64_ADDR32NB309 Type: IMAGE_REL_AMD64_ADDR32NB
...@@ -313,14 +313,14 @@ sections:...@@ -313,14 +313,14 @@ sections:
313 - VirtualAddress: 8313 - VirtualAddress: 8
314 SymbolName: '$unwind$main'314 SymbolName: '$unwind$main'
315 Type: IMAGE_REL_AMD64_ADDR32NB315 Type: IMAGE_REL_AMD64_ADDR32NB
316symbols: 316symbols:
317 - Name: .drectve317 - Name: .drectve
318 Value: 0318 Value: 0
319 SectionNumber: 1319 SectionNumber: 1
320 SimpleType: IMAGE_SYM_TYPE_NULL320 SimpleType: IMAGE_SYM_TYPE_NULL
321 ComplexType: IMAGE_SYM_DTYPE_NULL321 ComplexType: IMAGE_SYM_DTYPE_NULL
322 StorageClass: IMAGE_SYM_CLASS_STATIC322 StorageClass: IMAGE_SYM_CLASS_STATIC
323 SectionDefinition: 323 SectionDefinition:
324 Length: 47324 Length: 47
325 NumberOfRelocations: 0325 NumberOfRelocations: 0
326 NumberOfLinenumbers: 0326 NumberOfLinenumbers: 0
...@@ -332,7 +332,7 @@ symbols:...@@ -332,7 +332,7 @@ symbols:
332 SimpleType: IMAGE_SYM_TYPE_NULL332 SimpleType: IMAGE_SYM_TYPE_NULL
333 ComplexType: IMAGE_SYM_DTYPE_NULL333 ComplexType: IMAGE_SYM_DTYPE_NULL
334 StorageClass: IMAGE_SYM_CLASS_STATIC334 StorageClass: IMAGE_SYM_CLASS_STATIC
335 SectionDefinition: 335 SectionDefinition:
336 Length: 628336 Length: 628
337 NumberOfRelocations: 12337 NumberOfRelocations: 12
338 NumberOfLinenumbers: 0338 NumberOfLinenumbers: 0
...@@ -344,7 +344,7 @@ symbols:...@@ -344,7 +344,7 @@ symbols:
344 SimpleType: IMAGE_SYM_TYPE_NULL344 SimpleType: IMAGE_SYM_TYPE_NULL
345 ComplexType: IMAGE_SYM_DTYPE_NULL345 ComplexType: IMAGE_SYM_DTYPE_NULL
346 StorageClass: IMAGE_SYM_CLASS_STATIC346 StorageClass: IMAGE_SYM_CLASS_STATIC
347 SectionDefinition: 347 SectionDefinition:
348 Length: 624348 Length: 624
349 NumberOfRelocations: 0349 NumberOfRelocations: 0
350 NumberOfLinenumbers: 0350 NumberOfLinenumbers: 0
...@@ -356,7 +356,7 @@ symbols:...@@ -356,7 +356,7 @@ symbols:
356 SimpleType: IMAGE_SYM_TYPE_NULL356 SimpleType: IMAGE_SYM_TYPE_NULL
357 ComplexType: IMAGE_SYM_DTYPE_NULL357 ComplexType: IMAGE_SYM_DTYPE_NULL
358 StorageClass: IMAGE_SYM_CLASS_STATIC358 StorageClass: IMAGE_SYM_CLASS_STATIC
359 SectionDefinition: 359 SectionDefinition:
360 Length: 74360 Length: 74
361 NumberOfRelocations: 2361 NumberOfRelocations: 2
362 NumberOfLinenumbers: 0362 NumberOfLinenumbers: 0
...@@ -392,7 +392,7 @@ symbols:...@@ -392,7 +392,7 @@ symbols:
392 SimpleType: IMAGE_SYM_TYPE_NULL392 SimpleType: IMAGE_SYM_TYPE_NULL
393 ComplexType: IMAGE_SYM_DTYPE_NULL393 ComplexType: IMAGE_SYM_DTYPE_NULL
394 StorageClass: IMAGE_SYM_CLASS_STATIC394 StorageClass: IMAGE_SYM_CLASS_STATIC
395 SectionDefinition: 395 SectionDefinition:
396 Length: 8396 Length: 8
397 NumberOfRelocations: 0397 NumberOfRelocations: 0
398 NumberOfLinenumbers: 0398 NumberOfLinenumbers: 0
...@@ -410,7 +410,7 @@ symbols:...@@ -410,7 +410,7 @@ symbols:
410 SimpleType: IMAGE_SYM_TYPE_NULL410 SimpleType: IMAGE_SYM_TYPE_NULL
411 ComplexType: IMAGE_SYM_DTYPE_NULL411 ComplexType: IMAGE_SYM_DTYPE_NULL
412 StorageClass: IMAGE_SYM_CLASS_STATIC412 StorageClass: IMAGE_SYM_CLASS_STATIC
413 SectionDefinition: 413 SectionDefinition:
414 Length: 12414 Length: 12
415 NumberOfRelocations: 3415 NumberOfRelocations: 3
416 NumberOfLinenumbers: 0416 NumberOfLinenumbers: 0
deps/lld/test/COFF/Inputs/pdb-scopes-b.yaml+50-50
...@@ -1,8 +1,8 @@...@@ -1,8 +1,8 @@
1--- !COFF1--- !COFF
2header: 2header:
3 Machine: IMAGE_FILE_MACHINE_AMD643 Machine: IMAGE_FILE_MACHINE_AMD64
4 Characteristics: [ ]4 Characteristics: [ ]
5sections: 5sections:
6 - Name: .drectve6 - Name: .drectve
7 Characteristics: [ IMAGE_SCN_LNK_INFO, IMAGE_SCN_LNK_REMOVE ]7 Characteristics: [ IMAGE_SCN_LNK_INFO, IMAGE_SCN_LNK_REMOVE ]
8 Alignment: 18 Alignment: 1
...@@ -10,15 +10,15 @@ sections:...@@ -10,15 +10,15 @@ sections:
10 - Name: '.debug$S'10 - Name: '.debug$S'
11 Characteristics: [ IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_DISCARDABLE, IMAGE_SCN_MEM_READ ]11 Characteristics: [ IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_DISCARDABLE, IMAGE_SCN_MEM_READ ]
12 Alignment: 112 Alignment: 1
13 Subsections: 13 Subsections:
14 - !Symbols14 - !Symbols
15 Records: 15 Records:
16 - Kind: S_OBJNAME16 - Kind: S_OBJNAME
17 ObjNameSym: 17 ObjNameSym:
18 Signature: 018 Signature: 0
19 ObjectName: 'C:\src\llvm-project\build\b.obj'19 ObjectName: 'C:\src\llvm-project\build\b.obj'
20 - Kind: S_COMPILE320 - Kind: S_COMPILE3
21 Compile3Sym: 21 Compile3Sym:
22 Flags: [ SecurityChecks, HotPatch ]22 Flags: [ SecurityChecks, HotPatch ]
23 Machine: X6423 Machine: X64
24 FrontendMajor: 1924 FrontendMajor: 19
...@@ -31,9 +31,9 @@ sections:...@@ -31,9 +31,9 @@ sections:
31 BackendQFE: 131 BackendQFE: 1
32 Version: 'Microsoft (R) Optimizing Compiler'32 Version: 'Microsoft (R) Optimizing Compiler'
33 - !Symbols33 - !Symbols
34 Records: 34 Records:
35 - Kind: S_GPROC32_ID35 - Kind: S_GPROC32_ID
36 ProcSym: 36 ProcSym:
37 CodeSize: 6237 CodeSize: 62
38 DbgStart: 838 DbgStart: 8
39 DbgEnd: 5739 DbgEnd: 57
...@@ -41,7 +41,7 @@ sections:...@@ -41,7 +41,7 @@ sections:
41 Flags: [ ]41 Flags: [ ]
42 DisplayName: f42 DisplayName: f
43 - Kind: S_FRAMEPROC43 - Kind: S_FRAMEPROC
44 FrameProcSym: 44 FrameProcSym:
45 TotalFrameBytes: 5645 TotalFrameBytes: 56
46 PaddingFrameBytes: 046 PaddingFrameBytes: 0
47 OffsetToPadding: 047 OffsetToPadding: 0
...@@ -50,47 +50,47 @@ sections:...@@ -50,47 +50,47 @@ sections:
50 SectionIdOfExceptionHandler: 050 SectionIdOfExceptionHandler: 0
51 Flags: [ AsynchronousExceptionHandling, OptimizedForSpeed ]51 Flags: [ AsynchronousExceptionHandling, OptimizedForSpeed ]
52 - Kind: S_REGREL3252 - Kind: S_REGREL32
53 RegRelativeSym: 53 RegRelativeSym:
54 Offset: 6454 Offset: 64
55 Type: 11655 Type: 116
56 Register: RSP56 Register: RSP
57 VarName: x57 VarName: x
58 - Kind: S_BLOCK3258 - Kind: S_BLOCK32
59 BlockSym: 59 BlockSym:
60 CodeSize: 2060 CodeSize: 20
61 Offset: 1561 Offset: 15
62 BlockName: ''62 BlockName: ''
63 - Kind: S_REGREL3263 - Kind: S_REGREL32
64 RegRelativeSym: 64 RegRelativeSym:
65 Offset: 3265 Offset: 32
66 Type: 11666 Type: 116
67 Register: RSP67 Register: RSP
68 VarName: y68 VarName: y
69 - Kind: S_END69 - Kind: S_END
70 ScopeEndSym: 70 ScopeEndSym:
71 - Kind: S_BLOCK3271 - Kind: S_BLOCK32
72 BlockSym: 72 BlockSym:
73 CodeSize: 2073 CodeSize: 20
74 Offset: 3774 Offset: 37
75 BlockName: ''75 BlockName: ''
76 - Kind: S_REGREL3276 - Kind: S_REGREL32
77 RegRelativeSym: 77 RegRelativeSym:
78 Offset: 3678 Offset: 36
79 Type: 11679 Type: 116
80 Register: RSP80 Register: RSP
81 VarName: w81 VarName: w
82 - Kind: S_END82 - Kind: S_END
83 ScopeEndSym: 83 ScopeEndSym:
84 - Kind: S_PROC_ID_END84 - Kind: S_PROC_ID_END
85 ScopeEndSym: 85 ScopeEndSym:
86 - !Lines86 - !Lines
87 CodeSize: 6287 CodeSize: 62
88 Flags: [ ]88 Flags: [ ]
89 RelocOffset: 089 RelocOffset: 0
90 RelocSegment: 090 RelocSegment: 0
91 Blocks: 91 Blocks:
92 - FileName: 'c:\src\llvm-project\build\b.c'92 - FileName: 'c:\src\llvm-project\build\b.c'
93 Lines: 93 Lines:
94 - Offset: 094 - Offset: 0
95 LineStart: 295 LineStart: 2
96 IsStatement: true96 IsStatement: true
...@@ -123,21 +123,21 @@ sections:...@@ -123,21 +123,21 @@ sections:
123 LineStart: 10123 LineStart: 10
124 IsStatement: true124 IsStatement: true
125 EndDelta: 0125 EndDelta: 0
126 Columns: 126 Columns:
127 - !FileChecksums127 - !FileChecksums
128 Checksums: 128 Checksums:
129 - FileName: 'c:\src\llvm-project\build\b.c'129 - FileName: 'c:\src\llvm-project\build\b.c'
130 Kind: MD5130 Kind: MD5
131 Checksum: 8E8C92DB46478902EBEAEBFCFF15A6E0131 Checksum: 8E8C92DB46478902EBEAEBFCFF15A6E0
132 - !StringTable132 - !StringTable
133 Strings: 133 Strings:
134 - 'c:\src\llvm-project\build\b.c'134 - 'c:\src\llvm-project\build\b.c'
135 - !Symbols135 - !Symbols
136 Records: 136 Records:
137 - Kind: S_BUILDINFO137 - Kind: S_BUILDINFO
138 BuildInfoSym: 138 BuildInfoSym:
139 BuildId: 4110139 BuildId: 4110
140 Relocations: 140 Relocations:
141 - VirtualAddress: 152141 - VirtualAddress: 152
142 SymbolName: f142 SymbolName: f
143 Type: IMAGE_REL_AMD64_SECREL143 Type: IMAGE_REL_AMD64_SECREL
...@@ -165,76 +165,76 @@ sections:...@@ -165,76 +165,76 @@ sections:
165 - Name: '.debug$T'165 - Name: '.debug$T'
166 Characteristics: [ IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_DISCARDABLE, IMAGE_SCN_MEM_READ ]166 Characteristics: [ IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_DISCARDABLE, IMAGE_SCN_MEM_READ ]
167 Alignment: 1167 Alignment: 1
168 Types: 168 Types:
169 - Kind: LF_ARGLIST169 - Kind: LF_ARGLIST
170 ArgList: 170 ArgList:
171 ArgIndices: [ 0 ]171 ArgIndices: [ 0 ]
172 - Kind: LF_PROCEDURE172 - Kind: LF_PROCEDURE
173 Procedure: 173 Procedure:
174 ReturnType: 3174 ReturnType: 3
175 CallConv: NearC175 CallConv: NearC
176 Options: [ None ]176 Options: [ None ]
177 ParameterCount: 0177 ParameterCount: 0
178 ArgumentList: 4096178 ArgumentList: 4096
179 - Kind: LF_POINTER179 - Kind: LF_POINTER
180 Pointer: 180 Pointer:
181 ReferentType: 4097181 ReferentType: 4097
182 Attrs: 65548182 Attrs: 65548
183 - Kind: LF_ARGLIST183 - Kind: LF_ARGLIST
184 ArgList: 184 ArgList:
185 ArgIndices: [ 116 ]185 ArgIndices: [ 116 ]
186 - Kind: LF_PROCEDURE186 - Kind: LF_PROCEDURE
187 Procedure: 187 Procedure:
188 ReturnType: 3188 ReturnType: 3
189 CallConv: NearC189 CallConv: NearC
190 Options: [ None ]190 Options: [ None ]
191 ParameterCount: 1191 ParameterCount: 1
192 ArgumentList: 4099192 ArgumentList: 4099
193 - Kind: LF_FUNC_ID193 - Kind: LF_FUNC_ID
194 FuncId: 194 FuncId:
195 ParentScope: 0195 ParentScope: 0
196 FunctionType: 4100196 FunctionType: 4100
197 Name: f197 Name: f
198 - Kind: LF_FUNC_ID198 - Kind: LF_FUNC_ID
199 FuncId: 199 FuncId:
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201 FunctionType: 4097201 FunctionType: 4097
202 Name: g202 Name: g
203 - Kind: LF_STRING_ID203 - Kind: LF_STRING_ID
204 StringId: 204 StringId:
205 Id: 0205 Id: 0
206 String: 'C:\src\llvm-project\build'206 String: 'C:\src\llvm-project\build'
207 - Kind: LF_STRING_ID207 - Kind: LF_STRING_ID
208 StringId: 208 StringId:
209 Id: 0209 Id: 0
210 String: 'C:\PROGRA~2\MICROS~1.0\VC\Bin\amd64\cl.exe'210 String: 'C:\PROGRA~2\MICROS~1.0\VC\Bin\amd64\cl.exe'
211 - Kind: LF_STRING_ID211 - Kind: LF_STRING_ID
212 StringId: 212 StringId:
213 Id: 0213 Id: 0
214 String: '-c -Z7 -MT -IC:\PROGRA~2\MICROS~1.0\VC\include -IC:\PROGRA~2\MICROS~1.0\VC\atlmfc\include -IC:\PROGRA~2\WI3CF2~1\10\include\10.0.14393.0\ucrt -IC:\PROGRA~2\WI3CF2~1\10\include\10.0.14393.0\shared -IC:\PROGRA~2\WI3CF2~1\10\include\10.0.14393.0\um'214 String: '-c -Z7 -MT -IC:\PROGRA~2\MICROS~1.0\VC\include -IC:\PROGRA~2\MICROS~1.0\VC\atlmfc\include -IC:\PROGRA~2\WI3CF2~1\10\include\10.0.14393.0\ucrt -IC:\PROGRA~2\WI3CF2~1\10\include\10.0.14393.0\shared -IC:\PROGRA~2\WI3CF2~1\10\include\10.0.14393.0\um'
215 - Kind: LF_SUBSTR_LIST215 - Kind: LF_SUBSTR_LIST
216 StringList: 216 StringList:
217 StringIndices: [ 4105 ]217 StringIndices: [ 4105 ]
218 - Kind: LF_STRING_ID218 - Kind: LF_STRING_ID
219 StringId: 219 StringId:
220 Id: 4106220 Id: 4106
221 String: ' -IC:\PROGRA~2\WI3CF2~1\10\include\10.0.14393.0\winrt -TC -X'221 String: ' -IC:\PROGRA~2\WI3CF2~1\10\include\10.0.14393.0\winrt -TC -X'
222 - Kind: LF_STRING_ID222 - Kind: LF_STRING_ID
223 StringId: 223 StringId:
224 Id: 0224 Id: 0
225 String: b.c225 String: b.c
226 - Kind: LF_STRING_ID226 - Kind: LF_STRING_ID
227 StringId: 227 StringId:
228 Id: 0228 Id: 0
229 String: 'C:\src\llvm-project\build\vc140.pdb'229 String: 'C:\src\llvm-project\build\vc140.pdb'
230 - Kind: LF_BUILDINFO230 - Kind: LF_BUILDINFO
231 BuildInfo: 231 BuildInfo:
232 ArgIndices: [ 4103, 4104, 4108, 4109, 4107 ]232 ArgIndices: [ 4103, 4104, 4108, 4109, 4107 ]
233 - Name: '.text$mn'233 - Name: '.text$mn'
234 Characteristics: [ IMAGE_SCN_CNT_CODE, IMAGE_SCN_MEM_EXECUTE, IMAGE_SCN_MEM_READ ]234 Characteristics: [ IMAGE_SCN_CNT_CODE, IMAGE_SCN_MEM_EXECUTE, IMAGE_SCN_MEM_READ ]
235 Alignment: 16235 Alignment: 16
236 SectionData: 894C24084883EC38837C24400074168B44244083C003894424208B4C2420E800000000EB148B44244083C004894424248B4C2424E8000000004883C438C3236 SectionData: 894C24084883EC38837C24400074168B44244083C003894424208B4C2420E800000000EB148B44244083C004894424248B4C2424E8000000004883C438C3
237 Relocations: 237 Relocations:
238 - VirtualAddress: 31238 - VirtualAddress: 31
239 SymbolName: g239 SymbolName: g
240 Type: IMAGE_REL_AMD64_REL32240 Type: IMAGE_REL_AMD64_REL32
...@@ -249,7 +249,7 @@ sections:...@@ -249,7 +249,7 @@ sections:
249 Characteristics: [ IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_READ ]249 Characteristics: [ IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_READ ]
250 Alignment: 4250 Alignment: 4
251 SectionData: '000000003E00000000000000'251 SectionData: '000000003E00000000000000'
252 Relocations: 252 Relocations:
253 - VirtualAddress: 0253 - VirtualAddress: 0
254 SymbolName: '$LN5'254 SymbolName: '$LN5'
255 Type: IMAGE_REL_AMD64_ADDR32NB255 Type: IMAGE_REL_AMD64_ADDR32NB
...@@ -259,14 +259,14 @@ sections:...@@ -259,14 +259,14 @@ sections:
259 - VirtualAddress: 8259 - VirtualAddress: 8
260 SymbolName: '$unwind$f'260 SymbolName: '$unwind$f'
261 Type: IMAGE_REL_AMD64_ADDR32NB261 Type: IMAGE_REL_AMD64_ADDR32NB
262symbols: 262symbols:
263 - Name: .drectve263 - Name: .drectve
264 Value: 0264 Value: 0
265 SectionNumber: 1265 SectionNumber: 1
266 SimpleType: IMAGE_SYM_TYPE_NULL266 SimpleType: IMAGE_SYM_TYPE_NULL
267 ComplexType: IMAGE_SYM_DTYPE_NULL267 ComplexType: IMAGE_SYM_DTYPE_NULL
268 StorageClass: IMAGE_SYM_CLASS_STATIC268 StorageClass: IMAGE_SYM_CLASS_STATIC
269 SectionDefinition: 269 SectionDefinition:
270 Length: 47270 Length: 47
271 NumberOfRelocations: 0271 NumberOfRelocations: 0
272 NumberOfLinenumbers: 0272 NumberOfLinenumbers: 0
...@@ -278,7 +278,7 @@ symbols:...@@ -278,7 +278,7 @@ symbols:
278 SimpleType: IMAGE_SYM_TYPE_NULL278 SimpleType: IMAGE_SYM_TYPE_NULL
279 ComplexType: IMAGE_SYM_DTYPE_NULL279 ComplexType: IMAGE_SYM_DTYPE_NULL
280 StorageClass: IMAGE_SYM_CLASS_STATIC280 StorageClass: IMAGE_SYM_CLASS_STATIC
281 SectionDefinition: 281 SectionDefinition:
282 Length: 484282 Length: 484
283 NumberOfRelocations: 8283 NumberOfRelocations: 8
284 NumberOfLinenumbers: 0284 NumberOfLinenumbers: 0
...@@ -290,7 +290,7 @@ symbols:...@@ -290,7 +290,7 @@ symbols:
290 SimpleType: IMAGE_SYM_TYPE_NULL290 SimpleType: IMAGE_SYM_TYPE_NULL
291 ComplexType: IMAGE_SYM_DTYPE_NULL291 ComplexType: IMAGE_SYM_DTYPE_NULL
292 StorageClass: IMAGE_SYM_CLASS_STATIC292 StorageClass: IMAGE_SYM_CLASS_STATIC
293 SectionDefinition: 293 SectionDefinition:
294 Length: 616294 Length: 616
295 NumberOfRelocations: 0295 NumberOfRelocations: 0
296 NumberOfLinenumbers: 0296 NumberOfLinenumbers: 0
...@@ -302,7 +302,7 @@ symbols:...@@ -302,7 +302,7 @@ symbols:
302 SimpleType: IMAGE_SYM_TYPE_NULL302 SimpleType: IMAGE_SYM_TYPE_NULL
303 ComplexType: IMAGE_SYM_DTYPE_NULL303 ComplexType: IMAGE_SYM_DTYPE_NULL
304 StorageClass: IMAGE_SYM_CLASS_STATIC304 StorageClass: IMAGE_SYM_CLASS_STATIC
305 SectionDefinition: 305 SectionDefinition:
306 Length: 62306 Length: 62
307 NumberOfRelocations: 2307 NumberOfRelocations: 2
308 NumberOfLinenumbers: 0308 NumberOfLinenumbers: 0
...@@ -332,7 +332,7 @@ symbols:...@@ -332,7 +332,7 @@ symbols:
332 SimpleType: IMAGE_SYM_TYPE_NULL332 SimpleType: IMAGE_SYM_TYPE_NULL
333 ComplexType: IMAGE_SYM_DTYPE_NULL333 ComplexType: IMAGE_SYM_DTYPE_NULL
334 StorageClass: IMAGE_SYM_CLASS_STATIC334 StorageClass: IMAGE_SYM_CLASS_STATIC
335 SectionDefinition: 335 SectionDefinition:
336 Length: 8336 Length: 8
337 NumberOfRelocations: 0337 NumberOfRelocations: 0
338 NumberOfLinenumbers: 0338 NumberOfLinenumbers: 0
...@@ -350,7 +350,7 @@ symbols:...@@ -350,7 +350,7 @@ symbols:
350 SimpleType: IMAGE_SYM_TYPE_NULL350 SimpleType: IMAGE_SYM_TYPE_NULL
351 ComplexType: IMAGE_SYM_DTYPE_NULL351 ComplexType: IMAGE_SYM_DTYPE_NULL
352 StorageClass: IMAGE_SYM_CLASS_STATIC352 StorageClass: IMAGE_SYM_CLASS_STATIC
353 SectionDefinition: 353 SectionDefinition:
354 Length: 12354 Length: 12
355 NumberOfRelocations: 3355 NumberOfRelocations: 3
356 NumberOfLinenumbers: 0356 NumberOfLinenumbers: 0
deps/lld/test/COFF/Inputs/pdb_comdat_bar.yaml+58-58
...@@ -1,8 +1,8 @@...@@ -1,8 +1,8 @@
1--- !COFF1--- !COFF
2header: 2header:
3 Machine: IMAGE_FILE_MACHINE_AMD643 Machine: IMAGE_FILE_MACHINE_AMD64
4 Characteristics: [ ]4 Characteristics: [ ]
5sections: 5sections:
6 - Name: .drectve6 - Name: .drectve
7 Characteristics: [ IMAGE_SCN_LNK_INFO, IMAGE_SCN_LNK_REMOVE ]7 Characteristics: [ IMAGE_SCN_LNK_INFO, IMAGE_SCN_LNK_REMOVE ]
8 Alignment: 18 Alignment: 1
...@@ -10,15 +10,15 @@ sections:...@@ -10,15 +10,15 @@ sections:
10 - Name: '.debug$S'10 - Name: '.debug$S'
11 Characteristics: [ IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_DISCARDABLE, IMAGE_SCN_MEM_READ ]11 Characteristics: [ IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_DISCARDABLE, IMAGE_SCN_MEM_READ ]
12 Alignment: 112 Alignment: 1
13 Subsections: 13 Subsections:
14 - !Symbols14 - !Symbols
15 Records: 15 Records:
16 - Kind: S_OBJNAME16 - Kind: S_OBJNAME
17 ObjNameSym: 17 ObjNameSym:
18 Signature: 018 Signature: 0
19 ObjectName: 'C:\src\llvm-project\build\pdb_comdat_bar.obj'19 ObjectName: 'C:\src\llvm-project\build\pdb_comdat_bar.obj'
20 - Kind: S_COMPILE320 - Kind: S_COMPILE3
21 Compile3Sym: 21 Compile3Sym:
22 Flags: [ SecurityChecks, HotPatch ]22 Flags: [ SecurityChecks, HotPatch ]
23 Machine: X6423 Machine: X64
24 FrontendMajor: 1924 FrontendMajor: 19
...@@ -31,9 +31,9 @@ sections:...@@ -31,9 +31,9 @@ sections:
31 BackendQFE: 131 BackendQFE: 1
32 Version: 'Microsoft (R) Optimizing Compiler'32 Version: 'Microsoft (R) Optimizing Compiler'
33 - !Symbols33 - !Symbols
34 Records: 34 Records:
35 - Kind: S_GPROC32_ID35 - Kind: S_GPROC32_ID
36 ProcSym: 36 ProcSym:
37 PtrParent: 037 PtrParent: 0
38 PtrEnd: 038 PtrEnd: 0
39 PtrNext: 039 PtrNext: 0
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167 - Kind: LF_FUNC_ID167 - Kind: LF_FUNC_ID
168 FuncId: 168 FuncId:
169 ParentScope: 0169 ParentScope: 0
170 FunctionType: 4097170 FunctionType: 4097
171 Name: bar171 Name: bar
172 - Kind: LF_STRING_ID172 - Kind: LF_STRING_ID
173 StringId: 173 StringId:
174 Id: 0174 Id: 0
175 String: 'C:\src\llvm-project\build'175 String: 'C:\src\llvm-project\build'
176 - Kind: LF_STRING_ID176 - Kind: LF_STRING_ID
177 StringId: 177 StringId:
178 Id: 0178 Id: 0
179 String: 'C:\PROGRA~2\MICROS~1.0\VC\Bin\amd64\cl.exe'179 String: 'C:\PROGRA~2\MICROS~1.0\VC\Bin\amd64\cl.exe'
180 - Kind: LF_STRING_ID180 - Kind: LF_STRING_ID
181 StringId: 181 StringId:
182 Id: 0182 Id: 0
183 String: '-c -Z7 -MT -IC:\PROGRA~2\MICROS~1.0\VC\include -IC:\PROGRA~2\MICROS~1.0\VC\atlmfc\include -IC:\PROGRA~2\WI3CF2~1\10\include\10.0.14393.0\ucrt -IC:\PROGRA~2\WI3CF2~1\10\include\10.0.14393.0\shared -IC:\PROGRA~2\WI3CF2~1\10\include\10.0.14393.0\um'183 String: '-c -Z7 -MT -IC:\PROGRA~2\MICROS~1.0\VC\include -IC:\PROGRA~2\MICROS~1.0\VC\atlmfc\include -IC:\PROGRA~2\WI3CF2~1\10\include\10.0.14393.0\ucrt -IC:\PROGRA~2\WI3CF2~1\10\include\10.0.14393.0\shared -IC:\PROGRA~2\WI3CF2~1\10\include\10.0.14393.0\um'
184 - Kind: LF_SUBSTR_LIST184 - Kind: LF_SUBSTR_LIST
185 StringList: 185 StringList:
186 StringIndices: [ 4106 ]186 StringIndices: [ 4106 ]
187 - Kind: LF_STRING_ID187 - Kind: LF_STRING_ID
188 StringId: 188 StringId:
189 Id: 4107189 Id: 4107
190 String: ' -IC:\PROGRA~2\WI3CF2~1\10\include\10.0.14393.0\winrt -TC -X'190 String: ' -IC:\PROGRA~2\WI3CF2~1\10\include\10.0.14393.0\winrt -TC -X'
191 - Kind: LF_STRING_ID191 - Kind: LF_STRING_ID
192 StringId: 192 StringId:
193 Id: 0193 Id: 0
194 String: pdb_comdat_main.c194 String: pdb_comdat_main.c
195 - Kind: LF_STRING_ID195 - Kind: LF_STRING_ID
196 StringId: 196 StringId:
197 Id: 0197 Id: 0
198 String: 'C:\src\llvm-project\build\vc140.pdb'198 String: 'C:\src\llvm-project\build\vc140.pdb'
199 - Kind: LF_BUILDINFO199 - Kind: LF_BUILDINFO
200 BuildInfo: 200 BuildInfo:
201 ArgIndices: [ 4104, 4105, 4109, 4110, 4108 ]201 ArgIndices: [ 4104, 4105, 4109, 4110, 4108 ]
202 - Name: '.text$mn'202 - Name: '.text$mn'
203 Characteristics: [ IMAGE_SCN_CNT_CODE, IMAGE_SCN_MEM_EXECUTE, IMAGE_SCN_MEM_READ ]203 Characteristics: [ IMAGE_SCN_CNT_CODE, IMAGE_SCN_MEM_EXECUTE, IMAGE_SCN_MEM_READ ]
204 Alignment: 16204 Alignment: 16
205 SectionData: 4883EC28E800000000E800000000B82A0000004883C428C3205 SectionData: 4883EC28E800000000E800000000B82A0000004883C428C3
206 Relocations: 206 Relocations:
207 - VirtualAddress: 5207 - VirtualAddress: 5
208 SymbolName: foo208 SymbolName: foo
209 Type: IMAGE_REL_AMD64_REL32209 Type: IMAGE_REL_AMD64_REL32
...@@ -214,7 +214,7 @@ sections:...@@ -214,7 +214,7 @@ sections:
214 Characteristics: [ IMAGE_SCN_CNT_CODE, IMAGE_SCN_LNK_COMDAT, IMAGE_SCN_MEM_EXECUTE, IMAGE_SCN_MEM_READ ]214 Characteristics: [ IMAGE_SCN_CNT_CODE, IMAGE_SCN_LNK_COMDAT, IMAGE_SCN_MEM_EXECUTE, IMAGE_SCN_MEM_READ ]
215 Alignment: 16215 Alignment: 16
216 SectionData: 8B0500000000FFC0890500000000C3216 SectionData: 8B0500000000FFC0890500000000C3
217 Relocations: 217 Relocations:
218 - VirtualAddress: 2218 - VirtualAddress: 2
219 SymbolName: global219 SymbolName: global
220 Type: IMAGE_REL_AMD64_REL32220 Type: IMAGE_REL_AMD64_REL32
...@@ -224,11 +224,11 @@ sections:...@@ -224,11 +224,11 @@ sections:
224 - Name: '.debug$S'224 - Name: '.debug$S'
225 Characteristics: [ IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_LNK_COMDAT, IMAGE_SCN_MEM_DISCARDABLE, IMAGE_SCN_MEM_READ ]225 Characteristics: [ IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_LNK_COMDAT, IMAGE_SCN_MEM_DISCARDABLE, IMAGE_SCN_MEM_READ ]
226 Alignment: 1226 Alignment: 1
227 Subsections: 227 Subsections:
228 - !Symbols228 - !Symbols
229 Records: 229 Records:
230 - Kind: S_GPROC32_ID230 - Kind: S_GPROC32_ID
231 ProcSym: 231 ProcSym:
232 PtrParent: 0232 PtrParent: 0
233 PtrEnd: 0233 PtrEnd: 0
234 PtrNext: 0234 PtrNext: 0
...@@ -240,7 +240,7 @@ sections:...@@ -240,7 +240,7 @@ sections:
240 Flags: [ ]240 Flags: [ ]
241 DisplayName: foo241 DisplayName: foo
242 - Kind: S_FRAMEPROC242 - Kind: S_FRAMEPROC
243 FrameProcSym: 243 FrameProcSym:
244 TotalFrameBytes: 0244 TotalFrameBytes: 0
245 PaddingFrameBytes: 0245 PaddingFrameBytes: 0
246 OffsetToPadding: 0246 OffsetToPadding: 0
...@@ -249,15 +249,15 @@ sections:...@@ -249,15 +249,15 @@ sections:
249 SectionIdOfExceptionHandler: 0249 SectionIdOfExceptionHandler: 0
250 Flags: [ MarkedInline, AsynchronousExceptionHandling, OptimizedForSpeed ]250 Flags: [ MarkedInline, AsynchronousExceptionHandling, OptimizedForSpeed ]
251 - Kind: S_PROC_ID_END251 - Kind: S_PROC_ID_END
252 ScopeEndSym: 252 ScopeEndSym:
253 - !Lines253 - !Lines
254 CodeSize: 15254 CodeSize: 15
255 Flags: [ ]255 Flags: [ ]
256 RelocOffset: 0256 RelocOffset: 0
257 RelocSegment: 0257 RelocSegment: 0
258 Blocks: 258 Blocks:
259 - FileName: 'c:\src\llvm-project\build\foo.h'259 - FileName: 'c:\src\llvm-project\build\foo.h'
260 Lines: 260 Lines:
261 - Offset: 0261 - Offset: 0
262 LineStart: 2262 LineStart: 2
263 IsStatement: true263 IsStatement: true
...@@ -270,8 +270,8 @@ sections:...@@ -270,8 +270,8 @@ sections:
270 LineStart: 4270 LineStart: 4
271 IsStatement: true271 IsStatement: true
272 EndDelta: 0272 EndDelta: 0
273 Columns: 273 Columns:
274 Relocations: 274 Relocations:
275 - VirtualAddress: 44275 - VirtualAddress: 44
276 SymbolName: foo276 SymbolName: foo
277 Type: IMAGE_REL_AMD64_SECREL277 Type: IMAGE_REL_AMD64_SECREL
...@@ -292,7 +292,7 @@ sections:...@@ -292,7 +292,7 @@ sections:
292 Characteristics: [ IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_READ ]292 Characteristics: [ IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_READ ]
293 Alignment: 4293 Alignment: 4
294 SectionData: '000000001800000000000000'294 SectionData: '000000001800000000000000'
295 Relocations: 295 Relocations:
296 - VirtualAddress: 0296 - VirtualAddress: 0
297 SymbolName: '$LN3'297 SymbolName: '$LN3'
298 Type: IMAGE_REL_AMD64_ADDR32NB298 Type: IMAGE_REL_AMD64_ADDR32NB
...@@ -302,14 +302,14 @@ sections:...@@ -302,14 +302,14 @@ sections:
302 - VirtualAddress: 8302 - VirtualAddress: 8
303 SymbolName: '$unwind$main'303 SymbolName: '$unwind$main'
304 Type: IMAGE_REL_AMD64_ADDR32NB304 Type: IMAGE_REL_AMD64_ADDR32NB
305symbols: 305symbols:
306 - Name: .drectve306 - Name: .drectve
307 Value: 0307 Value: 0
308 SectionNumber: 1308 SectionNumber: 1
309 SimpleType: IMAGE_SYM_TYPE_NULL309 SimpleType: IMAGE_SYM_TYPE_NULL
310 ComplexType: IMAGE_SYM_DTYPE_NULL310 ComplexType: IMAGE_SYM_DTYPE_NULL
311 StorageClass: IMAGE_SYM_CLASS_STATIC311 StorageClass: IMAGE_SYM_CLASS_STATIC
312 SectionDefinition: 312 SectionDefinition:
313 Length: 47313 Length: 47
314 NumberOfRelocations: 0314 NumberOfRelocations: 0
315 NumberOfLinenumbers: 0315 NumberOfLinenumbers: 0
...@@ -321,7 +321,7 @@ symbols:...@@ -321,7 +321,7 @@ symbols:
321 SimpleType: IMAGE_SYM_TYPE_NULL321 SimpleType: IMAGE_SYM_TYPE_NULL
322 ComplexType: IMAGE_SYM_DTYPE_NULL322 ComplexType: IMAGE_SYM_DTYPE_NULL
323 StorageClass: IMAGE_SYM_CLASS_STATIC323 StorageClass: IMAGE_SYM_CLASS_STATIC
324 SectionDefinition: 324 SectionDefinition:
325 Length: 480325 Length: 480
326 NumberOfRelocations: 6326 NumberOfRelocations: 6
327 NumberOfLinenumbers: 0327 NumberOfLinenumbers: 0
...@@ -333,7 +333,7 @@ symbols:...@@ -333,7 +333,7 @@ symbols:
333 SimpleType: IMAGE_SYM_TYPE_NULL333 SimpleType: IMAGE_SYM_TYPE_NULL
334 ComplexType: IMAGE_SYM_DTYPE_NULL334 ComplexType: IMAGE_SYM_DTYPE_NULL
335 StorageClass: IMAGE_SYM_CLASS_STATIC335 StorageClass: IMAGE_SYM_CLASS_STATIC
336 SectionDefinition: 336 SectionDefinition:
337 Length: 648337 Length: 648
338 NumberOfRelocations: 0338 NumberOfRelocations: 0
339 NumberOfLinenumbers: 0339 NumberOfLinenumbers: 0
...@@ -345,7 +345,7 @@ symbols:...@@ -345,7 +345,7 @@ symbols:
345 SimpleType: IMAGE_SYM_TYPE_NULL345 SimpleType: IMAGE_SYM_TYPE_NULL
346 ComplexType: IMAGE_SYM_DTYPE_NULL346 ComplexType: IMAGE_SYM_DTYPE_NULL
347 StorageClass: IMAGE_SYM_CLASS_STATIC347 StorageClass: IMAGE_SYM_CLASS_STATIC
348 SectionDefinition: 348 SectionDefinition:
349 Length: 24349 Length: 24
350 NumberOfRelocations: 2350 NumberOfRelocations: 2
351 NumberOfLinenumbers: 0351 NumberOfLinenumbers: 0
...@@ -357,7 +357,7 @@ symbols:...@@ -357,7 +357,7 @@ symbols:
357 SimpleType: IMAGE_SYM_TYPE_NULL357 SimpleType: IMAGE_SYM_TYPE_NULL
358 ComplexType: IMAGE_SYM_DTYPE_NULL358 ComplexType: IMAGE_SYM_DTYPE_NULL
359 StorageClass: IMAGE_SYM_CLASS_STATIC359 StorageClass: IMAGE_SYM_CLASS_STATIC
360 SectionDefinition: 360 SectionDefinition:
361 Length: 15361 Length: 15
362 NumberOfRelocations: 2362 NumberOfRelocations: 2
363 NumberOfLinenumbers: 0363 NumberOfLinenumbers: 0
...@@ -370,7 +370,7 @@ symbols:...@@ -370,7 +370,7 @@ symbols:
370 SimpleType: IMAGE_SYM_TYPE_NULL370 SimpleType: IMAGE_SYM_TYPE_NULL
371 ComplexType: IMAGE_SYM_DTYPE_NULL371 ComplexType: IMAGE_SYM_DTYPE_NULL
372 StorageClass: IMAGE_SYM_CLASS_STATIC372 StorageClass: IMAGE_SYM_CLASS_STATIC
373 SectionDefinition: 373 SectionDefinition:
374 Length: 148374 Length: 148
375 NumberOfRelocations: 4375 NumberOfRelocations: 4
376 NumberOfLinenumbers: 0376 NumberOfLinenumbers: 0
...@@ -407,7 +407,7 @@ symbols:...@@ -407,7 +407,7 @@ symbols:
407 SimpleType: IMAGE_SYM_TYPE_NULL407 SimpleType: IMAGE_SYM_TYPE_NULL
408 ComplexType: IMAGE_SYM_DTYPE_NULL408 ComplexType: IMAGE_SYM_DTYPE_NULL
409 StorageClass: IMAGE_SYM_CLASS_STATIC409 StorageClass: IMAGE_SYM_CLASS_STATIC
410 SectionDefinition: 410 SectionDefinition:
411 Length: 8411 Length: 8
412 NumberOfRelocations: 0412 NumberOfRelocations: 0
413 NumberOfLinenumbers: 0413 NumberOfLinenumbers: 0
...@@ -425,7 +425,7 @@ symbols:...@@ -425,7 +425,7 @@ symbols:
425 SimpleType: IMAGE_SYM_TYPE_NULL425 SimpleType: IMAGE_SYM_TYPE_NULL
426 ComplexType: IMAGE_SYM_DTYPE_NULL426 ComplexType: IMAGE_SYM_DTYPE_NULL
427 StorageClass: IMAGE_SYM_CLASS_STATIC427 StorageClass: IMAGE_SYM_CLASS_STATIC
428 SectionDefinition: 428 SectionDefinition:
429 Length: 12429 Length: 12
430 NumberOfRelocations: 3430 NumberOfRelocations: 3
431 NumberOfLinenumbers: 0431 NumberOfLinenumbers: 0
deps/lld/test/COFF/Inputs/pdb_lines_1.yaml+59-59
...@@ -1,8 +1,8 @@...@@ -1,8 +1,8 @@
1--- !COFF1--- !COFF
2header: 2header:
3 Machine: IMAGE_FILE_MACHINE_AMD643 Machine: IMAGE_FILE_MACHINE_AMD64
4 Characteristics: [ ]4 Characteristics: [ ]
5sections: 5sections:
6 - Name: .drectve6 - Name: .drectve
7 Characteristics: [ IMAGE_SCN_LNK_INFO, IMAGE_SCN_LNK_REMOVE ]7 Characteristics: [ IMAGE_SCN_LNK_INFO, IMAGE_SCN_LNK_REMOVE ]
8 Alignment: 18 Alignment: 1
...@@ -10,15 +10,15 @@ sections:...@@ -10,15 +10,15 @@ sections:
10 - Name: '.debug$S'10 - Name: '.debug$S'
11 Characteristics: [ IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_DISCARDABLE, IMAGE_SCN_MEM_READ ]11 Characteristics: [ IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_DISCARDABLE, IMAGE_SCN_MEM_READ ]
12 Alignment: 112 Alignment: 1
13 Subsections: 13 Subsections:
14 - !Symbols14 - !Symbols
15 Records: 15 Records:
16 - Kind: S_OBJNAME16 - Kind: S_OBJNAME
17 ObjNameSym: 17 ObjNameSym:
18 Signature: 018 Signature: 0
19 ObjectName: 'C:\src\llvm-project\build\pdb_lines_1.obj'19 ObjectName: 'C:\src\llvm-project\build\pdb_lines_1.obj'
20 - Kind: S_COMPILE320 - Kind: S_COMPILE3
21 Compile3Sym: 21 Compile3Sym:
22 Flags: [ SecurityChecks, HotPatch ]22 Flags: [ SecurityChecks, HotPatch ]
23 Machine: X6423 Machine: X64
24 FrontendMajor: 1924 FrontendMajor: 19
...@@ -31,9 +31,9 @@ sections:...@@ -31,9 +31,9 @@ sections:
31 BackendQFE: 131 BackendQFE: 1
32 Version: 'Microsoft (R) Optimizing Compiler'32 Version: 'Microsoft (R) Optimizing Compiler'
33 - !Symbols33 - !Symbols
34 Records: 34 Records:
35 - Kind: S_GPROC32_ID35 - Kind: S_GPROC32_ID
36 ProcSym: 36 ProcSym:
37 PtrParent: 037 PtrParent: 0
38 PtrEnd: 038 PtrEnd: 0
39 PtrNext: 039 PtrNext: 0
...@@ -45,7 +45,7 @@ sections:...@@ -45,7 +45,7 @@ sections:
45 Flags: [ ]45 Flags: [ ]
46 DisplayName: main46 DisplayName: main
47 - Kind: S_FRAMEPROC47 - Kind: S_FRAMEPROC
48 FrameProcSym: 48 FrameProcSym:
49 TotalFrameBytes: 4049 TotalFrameBytes: 40
50 PaddingFrameBytes: 050 PaddingFrameBytes: 0
51 OffsetToPadding: 051 OffsetToPadding: 0
...@@ -54,15 +54,15 @@ sections:...@@ -54,15 +54,15 @@ sections:
54 SectionIdOfExceptionHandler: 054 SectionIdOfExceptionHandler: 0
55 Flags: [ AsynchronousExceptionHandling, OptimizedForSpeed ]55 Flags: [ AsynchronousExceptionHandling, OptimizedForSpeed ]
56 - Kind: S_PROC_ID_END56 - Kind: S_PROC_ID_END
57 ScopeEndSym: 57 ScopeEndSym:
58 - !Lines58 - !Lines
59 CodeSize: 1959 CodeSize: 19
60 Flags: [ ]60 Flags: [ ]
61 RelocOffset: 061 RelocOffset: 0
62 RelocSegment: 062 RelocSegment: 0
63 Blocks: 63 Blocks:
64 - FileName: 'c:\src\llvm-project\build\pdb_lines_1.c'64 - FileName: 'c:\src\llvm-project\build\pdb_lines_1.c'
65 Lines: 65 Lines:
66 - Offset: 066 - Offset: 0
67 LineStart: 267 LineStart: 2
68 IsStatement: true68 IsStatement: true
...@@ -79,9 +79,9 @@ sections:...@@ -79,9 +79,9 @@ sections:
79 LineStart: 579 LineStart: 5
80 IsStatement: true80 IsStatement: true
81 EndDelta: 081 EndDelta: 0
82 Columns: 82 Columns:
83 - !FileChecksums83 - !FileChecksums
84 Checksums: 84 Checksums:
85 - FileName: 'c:\src\llvm-project\build\pdb_lines_1.c'85 - FileName: 'c:\src\llvm-project\build\pdb_lines_1.c'
86 Kind: MD586 Kind: MD5
87 Checksum: 4EB19DCD86C3BA2238A255C718572E7B87 Checksum: 4EB19DCD86C3BA2238A255C718572E7B
...@@ -89,15 +89,15 @@ sections:...@@ -89,15 +89,15 @@ sections:
89 Kind: MD589 Kind: MD5
90 Checksum: 061EB73ABB642532857A4F1D9CBAC32390 Checksum: 061EB73ABB642532857A4F1D9CBAC323
91 - !StringTable91 - !StringTable
92 Strings: 92 Strings:
93 - 'c:\src\llvm-project\build\pdb_lines_1.c'93 - 'c:\src\llvm-project\build\pdb_lines_1.c'
94 - 'c:\src\llvm-project\build\foo.h'94 - 'c:\src\llvm-project\build\foo.h'
95 - !Symbols95 - !Symbols
96 Records: 96 Records:
97 - Kind: S_BUILDINFO97 - Kind: S_BUILDINFO
98 BuildInfoSym: 98 BuildInfoSym:
99 BuildId: 411199 BuildId: 4111
100 Relocations: 100 Relocations:
101 - VirtualAddress: 164101 - VirtualAddress: 164
102 SymbolName: main102 SymbolName: main
103 Type: IMAGE_REL_AMD64_SECREL103 Type: IMAGE_REL_AMD64_SECREL
...@@ -113,81 +113,81 @@ sections:...@@ -113,81 +113,81 @@ sections:
113 - Name: '.debug$T'113 - Name: '.debug$T'
114 Characteristics: [ IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_DISCARDABLE, IMAGE_SCN_MEM_READ ]114 Characteristics: [ IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_DISCARDABLE, IMAGE_SCN_MEM_READ ]
115 Alignment: 1115 Alignment: 1
116 Types: 116 Types:
117 - Kind: LF_ARGLIST117 - Kind: LF_ARGLIST
118 ArgList: 118 ArgList:
119 ArgIndices: [ ]119 ArgIndices: [ ]
120 - Kind: LF_PROCEDURE120 - Kind: LF_PROCEDURE
121 Procedure: 121 Procedure:
122 ReturnType: 3122 ReturnType: 3
123 CallConv: NearC123 CallConv: NearC
124 Options: [ None ]124 Options: [ None ]
125 ParameterCount: 0125 ParameterCount: 0
126 ArgumentList: 4096126 ArgumentList: 4096
127 - Kind: LF_POINTER127 - Kind: LF_POINTER
128 Pointer: 128 Pointer:
129 ReferentType: 4097129 ReferentType: 4097
130 Attrs: 65548130 Attrs: 65548
131 - Kind: LF_FUNC_ID131 - Kind: LF_FUNC_ID
132 FuncId: 132 FuncId:
133 ParentScope: 0133 ParentScope: 0
134 FunctionType: 4097134 FunctionType: 4097
135 Name: foo135 Name: foo
136 - Kind: LF_ARGLIST136 - Kind: LF_ARGLIST
137 ArgList: 137 ArgList:
138 ArgIndices: [ 0 ]138 ArgIndices: [ 0 ]
139 - Kind: LF_PROCEDURE139 - Kind: LF_PROCEDURE
140 Procedure: 140 Procedure:
141 ReturnType: 116141 ReturnType: 116
142 CallConv: NearC142 CallConv: NearC
143 Options: [ None ]143 Options: [ None ]
144 ParameterCount: 0144 ParameterCount: 0
145 ArgumentList: 4100145 ArgumentList: 4100
146 - Kind: LF_FUNC_ID146 - Kind: LF_FUNC_ID
147 FuncId: 147 FuncId:
148 ParentScope: 0148 ParentScope: 0
149 FunctionType: 4101149 FunctionType: 4101
150 Name: main150 Name: main
151 - Kind: LF_FUNC_ID151 - Kind: LF_FUNC_ID
152 FuncId: 152 FuncId:
153 ParentScope: 0153 ParentScope: 0
154 FunctionType: 4097154 FunctionType: 4097
155 Name: bar155 Name: bar
156 - Kind: LF_STRING_ID156 - Kind: LF_STRING_ID
157 StringId: 157 StringId:
158 Id: 0158 Id: 0
159 String: 'C:\src\llvm-project\build'159 String: 'C:\src\llvm-project\build'
160 - Kind: LF_STRING_ID160 - Kind: LF_STRING_ID
161 StringId: 161 StringId:
162 Id: 0162 Id: 0
163 String: 'C:\PROGRA~2\MICROS~1.0\VC\Bin\amd64\cl.exe'163 String: 'C:\PROGRA~2\MICROS~1.0\VC\Bin\amd64\cl.exe'
164 - Kind: LF_STRING_ID164 - Kind: LF_STRING_ID
165 StringId: 165 StringId:
166 Id: 0166 Id: 0
167 String: '-c -Z7 -MT -IC:\PROGRA~2\MICROS~1.0\VC\include -IC:\PROGRA~2\MICROS~1.0\VC\atlmfc\include -IC:\PROGRA~2\WI3CF2~1\10\include\10.0.14393.0\ucrt -IC:\PROGRA~2\WI3CF2~1\10\include\10.0.14393.0\shared -IC:\PROGRA~2\WI3CF2~1\10\include\10.0.14393.0\um'167 String: '-c -Z7 -MT -IC:\PROGRA~2\MICROS~1.0\VC\include -IC:\PROGRA~2\MICROS~1.0\VC\atlmfc\include -IC:\PROGRA~2\WI3CF2~1\10\include\10.0.14393.0\ucrt -IC:\PROGRA~2\WI3CF2~1\10\include\10.0.14393.0\shared -IC:\PROGRA~2\WI3CF2~1\10\include\10.0.14393.0\um'
168 - Kind: LF_SUBSTR_LIST168 - Kind: LF_SUBSTR_LIST
169 StringList: 169 StringList:
170 StringIndices: [ 4106 ]170 StringIndices: [ 4106 ]
171 - Kind: LF_STRING_ID171 - Kind: LF_STRING_ID
172 StringId: 172 StringId:
173 Id: 4107173 Id: 4107
174 String: ' -IC:\PROGRA~2\WI3CF2~1\10\include\10.0.14393.0\winrt -TC -X'174 String: ' -IC:\PROGRA~2\WI3CF2~1\10\include\10.0.14393.0\winrt -TC -X'
175 - Kind: LF_STRING_ID175 - Kind: LF_STRING_ID
176 StringId: 176 StringId:
177 Id: 0177 Id: 0
178 String: pdb_lines_1.c178 String: pdb_lines_1.c
179 - Kind: LF_STRING_ID179 - Kind: LF_STRING_ID
180 StringId: 180 StringId:
181 Id: 0181 Id: 0
182 String: 'C:\src\llvm-project\build\vc140.pdb'182 String: 'C:\src\llvm-project\build\vc140.pdb'
183 - Kind: LF_BUILDINFO183 - Kind: LF_BUILDINFO
184 BuildInfo: 184 BuildInfo:
185 ArgIndices: [ 4104, 4105, 4109, 4110, 4108 ]185 ArgIndices: [ 4104, 4105, 4109, 4110, 4108 ]
186 - Name: '.text$mn'186 - Name: '.text$mn'
187 Characteristics: [ IMAGE_SCN_CNT_CODE, IMAGE_SCN_MEM_EXECUTE, IMAGE_SCN_MEM_READ ]187 Characteristics: [ IMAGE_SCN_CNT_CODE, IMAGE_SCN_MEM_EXECUTE, IMAGE_SCN_MEM_READ ]
188 Alignment: 16188 Alignment: 16
189 SectionData: 4883EC28E800000000B82A0000004883C428C3189 SectionData: 4883EC28E800000000B82A0000004883C428C3
190 Relocations: 190 Relocations:
191 - VirtualAddress: 5191 - VirtualAddress: 5
192 SymbolName: foo192 SymbolName: foo
193 Type: IMAGE_REL_AMD64_REL32193 Type: IMAGE_REL_AMD64_REL32
...@@ -195,18 +195,18 @@ sections:...@@ -195,18 +195,18 @@ sections:
195 Characteristics: [ IMAGE_SCN_CNT_CODE, IMAGE_SCN_LNK_COMDAT, IMAGE_SCN_MEM_EXECUTE, IMAGE_SCN_MEM_READ ]195 Characteristics: [ IMAGE_SCN_CNT_CODE, IMAGE_SCN_LNK_COMDAT, IMAGE_SCN_MEM_EXECUTE, IMAGE_SCN_MEM_READ ]
196 Alignment: 16196 Alignment: 16
197 SectionData: 4883EC28E8000000004883C428C3197 SectionData: 4883EC28E8000000004883C428C3
198 Relocations: 198 Relocations:
199 - VirtualAddress: 5199 - VirtualAddress: 5
200 SymbolName: bar200 SymbolName: bar
201 Type: IMAGE_REL_AMD64_REL32201 Type: IMAGE_REL_AMD64_REL32
202 - Name: '.debug$S'202 - Name: '.debug$S'
203 Characteristics: [ IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_LNK_COMDAT, IMAGE_SCN_MEM_DISCARDABLE, IMAGE_SCN_MEM_READ ]203 Characteristics: [ IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_LNK_COMDAT, IMAGE_SCN_MEM_DISCARDABLE, IMAGE_SCN_MEM_READ ]
204 Alignment: 1204 Alignment: 1
205 Subsections: 205 Subsections:
206 - !Symbols206 - !Symbols
207 Records: 207 Records:
208 - Kind: S_GPROC32_ID208 - Kind: S_GPROC32_ID
209 ProcSym: 209 ProcSym:
210 PtrParent: 0210 PtrParent: 0
211 PtrEnd: 0211 PtrEnd: 0
212 PtrNext: 0212 PtrNext: 0
...@@ -218,7 +218,7 @@ sections:...@@ -218,7 +218,7 @@ sections:
218 Flags: [ ]218 Flags: [ ]
219 DisplayName: foo219 DisplayName: foo
220 - Kind: S_FRAMEPROC220 - Kind: S_FRAMEPROC
221 FrameProcSym: 221 FrameProcSym:
222 TotalFrameBytes: 40222 TotalFrameBytes: 40
223 PaddingFrameBytes: 0223 PaddingFrameBytes: 0
224 OffsetToPadding: 0224 OffsetToPadding: 0
...@@ -227,15 +227,15 @@ sections:...@@ -227,15 +227,15 @@ sections:
227 SectionIdOfExceptionHandler: 0227 SectionIdOfExceptionHandler: 0
228 Flags: [ MarkedInline, AsynchronousExceptionHandling, OptimizedForSpeed ]228 Flags: [ MarkedInline, AsynchronousExceptionHandling, OptimizedForSpeed ]
229 - Kind: S_PROC_ID_END229 - Kind: S_PROC_ID_END
230 ScopeEndSym: 230 ScopeEndSym:
231 - !Lines231 - !Lines
232 CodeSize: 14232 CodeSize: 14
233 Flags: [ ]233 Flags: [ ]
234 RelocOffset: 0234 RelocOffset: 0
235 RelocSegment: 0235 RelocSegment: 0
236 Blocks: 236 Blocks:
237 - FileName: 'c:\src\llvm-project\build\foo.h'237 - FileName: 'c:\src\llvm-project\build\foo.h'
238 Lines: 238 Lines:
239 - Offset: 0239 - Offset: 0
240 LineStart: 2240 LineStart: 2
241 IsStatement: true241 IsStatement: true
...@@ -248,8 +248,8 @@ sections:...@@ -248,8 +248,8 @@ sections:
248 LineStart: 4248 LineStart: 4
249 IsStatement: true249 IsStatement: true
250 EndDelta: 0250 EndDelta: 0
251 Columns: 251 Columns:
252 Relocations: 252 Relocations:
253 - VirtualAddress: 44253 - VirtualAddress: 44
254 SymbolName: foo254 SymbolName: foo
255 Type: IMAGE_REL_AMD64_SECREL255 Type: IMAGE_REL_AMD64_SECREL
...@@ -270,7 +270,7 @@ sections:...@@ -270,7 +270,7 @@ sections:
270 Characteristics: [ IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_LNK_COMDAT, IMAGE_SCN_MEM_READ ]270 Characteristics: [ IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_LNK_COMDAT, IMAGE_SCN_MEM_READ ]
271 Alignment: 4271 Alignment: 4
272 SectionData: '000000000E00000000000000'272 SectionData: '000000000E00000000000000'
273 Relocations: 273 Relocations:
274 - VirtualAddress: 0274 - VirtualAddress: 0
275 SymbolName: '$LN3'275 SymbolName: '$LN3'
276 Type: IMAGE_REL_AMD64_ADDR32NB276 Type: IMAGE_REL_AMD64_ADDR32NB
...@@ -288,7 +288,7 @@ sections:...@@ -288,7 +288,7 @@ sections:
288 Characteristics: [ IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_READ ]288 Characteristics: [ IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_READ ]
289 Alignment: 4289 Alignment: 4
290 SectionData: '000000001300000000000000'290 SectionData: '000000001300000000000000'
291 Relocations: 291 Relocations:
292 - VirtualAddress: 0292 - VirtualAddress: 0
293 SymbolName: '$LN3'293 SymbolName: '$LN3'
294 Type: IMAGE_REL_AMD64_ADDR32NB294 Type: IMAGE_REL_AMD64_ADDR32NB
...@@ -298,14 +298,14 @@ sections:...@@ -298,14 +298,14 @@ sections:
298 - VirtualAddress: 8298 - VirtualAddress: 8
299 SymbolName: '$unwind$main'299 SymbolName: '$unwind$main'
300 Type: IMAGE_REL_AMD64_ADDR32NB300 Type: IMAGE_REL_AMD64_ADDR32NB
301symbols: 301symbols:
302 - Name: .drectve302 - Name: .drectve
303 Value: 0303 Value: 0
304 SectionNumber: 1304 SectionNumber: 1
305 SimpleType: IMAGE_SYM_TYPE_NULL305 SimpleType: IMAGE_SYM_TYPE_NULL
306 ComplexType: IMAGE_SYM_DTYPE_NULL306 ComplexType: IMAGE_SYM_DTYPE_NULL
307 StorageClass: IMAGE_SYM_CLASS_STATIC307 StorageClass: IMAGE_SYM_CLASS_STATIC
308 SectionDefinition: 308 SectionDefinition:
309 Length: 47309 Length: 47
310 NumberOfRelocations: 0310 NumberOfRelocations: 0
311 NumberOfLinenumbers: 0311 NumberOfLinenumbers: 0
...@@ -317,7 +317,7 @@ symbols:...@@ -317,7 +317,7 @@ symbols:
317 SimpleType: IMAGE_SYM_TYPE_NULL317 SimpleType: IMAGE_SYM_TYPE_NULL
318 ComplexType: IMAGE_SYM_DTYPE_NULL318 ComplexType: IMAGE_SYM_DTYPE_NULL
319 StorageClass: IMAGE_SYM_CLASS_STATIC319 StorageClass: IMAGE_SYM_CLASS_STATIC
320 SectionDefinition: 320 SectionDefinition:
321 Length: 432321 Length: 432
322 NumberOfRelocations: 4322 NumberOfRelocations: 4
323 NumberOfLinenumbers: 0323 NumberOfLinenumbers: 0
...@@ -329,7 +329,7 @@ symbols:...@@ -329,7 +329,7 @@ symbols:
329 SimpleType: IMAGE_SYM_TYPE_NULL329 SimpleType: IMAGE_SYM_TYPE_NULL
330 ComplexType: IMAGE_SYM_DTYPE_NULL330 ComplexType: IMAGE_SYM_DTYPE_NULL
331 StorageClass: IMAGE_SYM_CLASS_STATIC331 StorageClass: IMAGE_SYM_CLASS_STATIC
332 SectionDefinition: 332 SectionDefinition:
333 Length: 644333 Length: 644
334 NumberOfRelocations: 0334 NumberOfRelocations: 0
335 NumberOfLinenumbers: 0335 NumberOfLinenumbers: 0
...@@ -341,7 +341,7 @@ symbols:...@@ -341,7 +341,7 @@ symbols:
341 SimpleType: IMAGE_SYM_TYPE_NULL341 SimpleType: IMAGE_SYM_TYPE_NULL
342 ComplexType: IMAGE_SYM_DTYPE_NULL342 ComplexType: IMAGE_SYM_DTYPE_NULL
343 StorageClass: IMAGE_SYM_CLASS_STATIC343 StorageClass: IMAGE_SYM_CLASS_STATIC
344 SectionDefinition: 344 SectionDefinition:
345 Length: 19345 Length: 19
346 NumberOfRelocations: 1346 NumberOfRelocations: 1
347 NumberOfLinenumbers: 0347 NumberOfLinenumbers: 0
...@@ -353,7 +353,7 @@ symbols:...@@ -353,7 +353,7 @@ symbols:
353 SimpleType: IMAGE_SYM_TYPE_NULL353 SimpleType: IMAGE_SYM_TYPE_NULL
354 ComplexType: IMAGE_SYM_DTYPE_NULL354 ComplexType: IMAGE_SYM_DTYPE_NULL
355 StorageClass: IMAGE_SYM_CLASS_STATIC355 StorageClass: IMAGE_SYM_CLASS_STATIC
356 SectionDefinition: 356 SectionDefinition:
357 Length: 14357 Length: 14
358 NumberOfRelocations: 1358 NumberOfRelocations: 1
359 NumberOfLinenumbers: 0359 NumberOfLinenumbers: 0
...@@ -366,7 +366,7 @@ symbols:...@@ -366,7 +366,7 @@ symbols:
366 SimpleType: IMAGE_SYM_TYPE_NULL366 SimpleType: IMAGE_SYM_TYPE_NULL
367 ComplexType: IMAGE_SYM_DTYPE_NULL367 ComplexType: IMAGE_SYM_DTYPE_NULL
368 StorageClass: IMAGE_SYM_CLASS_STATIC368 StorageClass: IMAGE_SYM_CLASS_STATIC
369 SectionDefinition: 369 SectionDefinition:
370 Length: 148370 Length: 148
371 NumberOfRelocations: 4371 NumberOfRelocations: 4
372 NumberOfLinenumbers: 0372 NumberOfLinenumbers: 0
...@@ -409,7 +409,7 @@ symbols:...@@ -409,7 +409,7 @@ symbols:
409 SimpleType: IMAGE_SYM_TYPE_NULL409 SimpleType: IMAGE_SYM_TYPE_NULL
410 ComplexType: IMAGE_SYM_DTYPE_NULL410 ComplexType: IMAGE_SYM_DTYPE_NULL
411 StorageClass: IMAGE_SYM_CLASS_STATIC411 StorageClass: IMAGE_SYM_CLASS_STATIC
412 SectionDefinition: 412 SectionDefinition:
413 Length: 8413 Length: 8
414 NumberOfRelocations: 0414 NumberOfRelocations: 0
415 NumberOfLinenumbers: 0415 NumberOfLinenumbers: 0
...@@ -428,7 +428,7 @@ symbols:...@@ -428,7 +428,7 @@ symbols:
428 SimpleType: IMAGE_SYM_TYPE_NULL428 SimpleType: IMAGE_SYM_TYPE_NULL
429 ComplexType: IMAGE_SYM_DTYPE_NULL429 ComplexType: IMAGE_SYM_DTYPE_NULL
430 StorageClass: IMAGE_SYM_CLASS_STATIC430 StorageClass: IMAGE_SYM_CLASS_STATIC
431 SectionDefinition: 431 SectionDefinition:
432 Length: 12432 Length: 12
433 NumberOfRelocations: 3433 NumberOfRelocations: 3
434 NumberOfLinenumbers: 0434 NumberOfLinenumbers: 0
...@@ -447,7 +447,7 @@ symbols:...@@ -447,7 +447,7 @@ symbols:
447 SimpleType: IMAGE_SYM_TYPE_NULL447 SimpleType: IMAGE_SYM_TYPE_NULL
448 ComplexType: IMAGE_SYM_DTYPE_NULL448 ComplexType: IMAGE_SYM_DTYPE_NULL
449 StorageClass: IMAGE_SYM_CLASS_STATIC449 StorageClass: IMAGE_SYM_CLASS_STATIC
450 SectionDefinition: 450 SectionDefinition:
451 Length: 8451 Length: 8
452 NumberOfRelocations: 0452 NumberOfRelocations: 0
453 NumberOfLinenumbers: 0453 NumberOfLinenumbers: 0
...@@ -465,7 +465,7 @@ symbols:...@@ -465,7 +465,7 @@ symbols:
465 SimpleType: IMAGE_SYM_TYPE_NULL465 SimpleType: IMAGE_SYM_TYPE_NULL
466 ComplexType: IMAGE_SYM_DTYPE_NULL466 ComplexType: IMAGE_SYM_DTYPE_NULL
467 StorageClass: IMAGE_SYM_CLASS_STATIC467 StorageClass: IMAGE_SYM_CLASS_STATIC
468 SectionDefinition: 468 SectionDefinition:
469 Length: 12469 Length: 12
470 NumberOfRelocations: 3470 NumberOfRelocations: 3
471 NumberOfLinenumbers: 0471 NumberOfLinenumbers: 0
deps/lld/test/COFF/Inputs/pdb_lines_2.yaml+35-35
...@@ -1,8 +1,8 @@...@@ -1,8 +1,8 @@
1--- !COFF1--- !COFF
2header: 2header:
3 Machine: IMAGE_FILE_MACHINE_AMD643 Machine: IMAGE_FILE_MACHINE_AMD64
4 Characteristics: [ ]4 Characteristics: [ ]
5sections: 5sections:
6 - Name: .drectve6 - Name: .drectve
7 Characteristics: [ IMAGE_SCN_LNK_INFO, IMAGE_SCN_LNK_REMOVE ]7 Characteristics: [ IMAGE_SCN_LNK_INFO, IMAGE_SCN_LNK_REMOVE ]
8 Alignment: 18 Alignment: 1
...@@ -10,15 +10,15 @@ sections:...@@ -10,15 +10,15 @@ sections:
10 - Name: '.debug$S'10 - Name: '.debug$S'
11 Characteristics: [ IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_DISCARDABLE, IMAGE_SCN_MEM_READ ]11 Characteristics: [ IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_DISCARDABLE, IMAGE_SCN_MEM_READ ]
12 Alignment: 112 Alignment: 1
13 Subsections: 13 Subsections:
14 - !Symbols14 - !Symbols
15 Records: 15 Records:
16 - Kind: S_OBJNAME16 - Kind: S_OBJNAME
17 ObjNameSym: 17 ObjNameSym:
18 Signature: 018 Signature: 0
19 ObjectName: 'C:\src\llvm-project\build\pdb_lines_2.obj'19 ObjectName: 'C:\src\llvm-project\build\pdb_lines_2.obj'
20 - Kind: S_COMPILE320 - Kind: S_COMPILE3
21 Compile3Sym: 21 Compile3Sym:
22 Flags: [ SecurityChecks, HotPatch ]22 Flags: [ SecurityChecks, HotPatch ]
23 Machine: X6423 Machine: X64
24 FrontendMajor: 1924 FrontendMajor: 19
...@@ -31,9 +31,9 @@ sections:...@@ -31,9 +31,9 @@ sections:
31 BackendQFE: 131 BackendQFE: 1
32 Version: 'Microsoft (R) Optimizing Compiler'32 Version: 'Microsoft (R) Optimizing Compiler'
33 - !Symbols33 - !Symbols
34 Records: 34 Records:
35 - Kind: S_GPROC32_ID35 - Kind: S_GPROC32_ID
36 ProcSym: 36 ProcSym:
37 PtrParent: 037 PtrParent: 0
38 PtrEnd: 038 PtrEnd: 0
39 PtrNext: 039 PtrNext: 0
...@@ -45,7 +45,7 @@ sections:...@@ -45,7 +45,7 @@ sections:
45 Flags: [ ]45 Flags: [ ]
46 DisplayName: bar46 DisplayName: bar
47 - Kind: S_FRAMEPROC47 - Kind: S_FRAMEPROC
48 FrameProcSym: 48 FrameProcSym:
49 TotalFrameBytes: 049 TotalFrameBytes: 0
50 PaddingFrameBytes: 050 PaddingFrameBytes: 0
51 OffsetToPadding: 051 OffsetToPadding: 0
...@@ -54,15 +54,15 @@ sections:...@@ -54,15 +54,15 @@ sections:
54 SectionIdOfExceptionHandler: 054 SectionIdOfExceptionHandler: 0
55 Flags: [ AsynchronousExceptionHandling, OptimizedForSpeed ]55 Flags: [ AsynchronousExceptionHandling, OptimizedForSpeed ]
56 - Kind: S_PROC_ID_END56 - Kind: S_PROC_ID_END
57 ScopeEndSym: 57 ScopeEndSym:
58 - !Lines58 - !Lines
59 CodeSize: 159 CodeSize: 1
60 Flags: [ ]60 Flags: [ ]
61 RelocOffset: 061 RelocOffset: 0
62 RelocSegment: 062 RelocSegment: 0
63 Blocks: 63 Blocks:
64 - FileName: 'c:\src\llvm-project\build\pdb_lines_2.c'64 - FileName: 'c:\src\llvm-project\build\pdb_lines_2.c'
65 Lines: 65 Lines:
66 - Offset: 066 - Offset: 0
67 LineStart: 167 LineStart: 1
68 IsStatement: true68 IsStatement: true
...@@ -71,21 +71,21 @@ sections:...@@ -71,21 +71,21 @@ sections:
71 LineStart: 271 LineStart: 2
72 IsStatement: true72 IsStatement: true
73 EndDelta: 073 EndDelta: 0
74 Columns: 74 Columns:
75 - !FileChecksums75 - !FileChecksums
76 Checksums: 76 Checksums:
77 - FileName: 'c:\src\llvm-project\build\pdb_lines_2.c'77 - FileName: 'c:\src\llvm-project\build\pdb_lines_2.c'
78 Kind: MD578 Kind: MD5
79 Checksum: DF91CB3A2B8D917486574BB50CAC4CC779 Checksum: DF91CB3A2B8D917486574BB50CAC4CC7
80 - !StringTable80 - !StringTable
81 Strings: 81 Strings:
82 - 'c:\src\llvm-project\build\pdb_lines_2.c'82 - 'c:\src\llvm-project\build\pdb_lines_2.c'
83 - !Symbols83 - !Symbols
84 Records: 84 Records:
85 - Kind: S_BUILDINFO85 - Kind: S_BUILDINFO
86 BuildInfoSym: 86 BuildInfoSym:
87 BuildId: 410687 BuildId: 4106
88 Relocations: 88 Relocations:
89 - VirtualAddress: 16489 - VirtualAddress: 164
90 SymbolName: bar90 SymbolName: bar
91 Type: IMAGE_REL_AMD64_SECREL91 Type: IMAGE_REL_AMD64_SECREL
...@@ -101,64 +101,64 @@ sections:...@@ -101,64 +101,64 @@ sections:
101 - Name: '.debug$T'101 - Name: '.debug$T'
102 Characteristics: [ IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_DISCARDABLE, IMAGE_SCN_MEM_READ ]102 Characteristics: [ IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_DISCARDABLE, IMAGE_SCN_MEM_READ ]
103 Alignment: 1103 Alignment: 1
104 Types: 104 Types:
105 - Kind: LF_ARGLIST105 - Kind: LF_ARGLIST
106 ArgList: 106 ArgList:
107 ArgIndices: [ ]107 ArgIndices: [ ]
108 - Kind: LF_PROCEDURE108 - Kind: LF_PROCEDURE
109 Procedure: 109 Procedure:
110 ReturnType: 3110 ReturnType: 3
111 CallConv: NearC111 CallConv: NearC
112 Options: [ None ]112 Options: [ None ]
113 ParameterCount: 0113 ParameterCount: 0
114 ArgumentList: 4096114 ArgumentList: 4096
115 - Kind: LF_FUNC_ID115 - Kind: LF_FUNC_ID
116 FuncId: 116 FuncId:
117 ParentScope: 0117 ParentScope: 0
118 FunctionType: 4097118 FunctionType: 4097
119 Name: bar119 Name: bar
120 - Kind: LF_STRING_ID120 - Kind: LF_STRING_ID
121 StringId: 121 StringId:
122 Id: 0122 Id: 0
123 String: 'C:\src\llvm-project\build'123 String: 'C:\src\llvm-project\build'
124 - Kind: LF_STRING_ID124 - Kind: LF_STRING_ID
125 StringId: 125 StringId:
126 Id: 0126 Id: 0
127 String: 'C:\PROGRA~2\MICROS~1.0\VC\Bin\amd64\cl.exe'127 String: 'C:\PROGRA~2\MICROS~1.0\VC\Bin\amd64\cl.exe'
128 - Kind: LF_STRING_ID128 - Kind: LF_STRING_ID
129 StringId: 129 StringId:
130 Id: 0130 Id: 0
131 String: '-c -Z7 -MT -IC:\PROGRA~2\MICROS~1.0\VC\include -IC:\PROGRA~2\MICROS~1.0\VC\atlmfc\include -IC:\PROGRA~2\WI3CF2~1\10\include\10.0.14393.0\ucrt -IC:\PROGRA~2\WI3CF2~1\10\include\10.0.14393.0\shared -IC:\PROGRA~2\WI3CF2~1\10\include\10.0.14393.0\um'131 String: '-c -Z7 -MT -IC:\PROGRA~2\MICROS~1.0\VC\include -IC:\PROGRA~2\MICROS~1.0\VC\atlmfc\include -IC:\PROGRA~2\WI3CF2~1\10\include\10.0.14393.0\ucrt -IC:\PROGRA~2\WI3CF2~1\10\include\10.0.14393.0\shared -IC:\PROGRA~2\WI3CF2~1\10\include\10.0.14393.0\um'
132 - Kind: LF_SUBSTR_LIST132 - Kind: LF_SUBSTR_LIST
133 StringList: 133 StringList:
134 StringIndices: [ 4101 ]134 StringIndices: [ 4101 ]
135 - Kind: LF_STRING_ID135 - Kind: LF_STRING_ID
136 StringId: 136 StringId:
137 Id: 4102137 Id: 4102
138 String: ' -IC:\PROGRA~2\WI3CF2~1\10\include\10.0.14393.0\winrt -TC -X'138 String: ' -IC:\PROGRA~2\WI3CF2~1\10\include\10.0.14393.0\winrt -TC -X'
139 - Kind: LF_STRING_ID139 - Kind: LF_STRING_ID
140 StringId: 140 StringId:
141 Id: 0141 Id: 0
142 String: pdb_lines_2.c142 String: pdb_lines_2.c
143 - Kind: LF_STRING_ID143 - Kind: LF_STRING_ID
144 StringId: 144 StringId:
145 Id: 0145 Id: 0
146 String: 'C:\src\llvm-project\build\vc140.pdb'146 String: 'C:\src\llvm-project\build\vc140.pdb'
147 - Kind: LF_BUILDINFO147 - Kind: LF_BUILDINFO
148 BuildInfo: 148 BuildInfo:
149 ArgIndices: [ 4099, 4100, 4104, 4105, 4103 ]149 ArgIndices: [ 4099, 4100, 4104, 4105, 4103 ]
150 - Name: '.text$mn'150 - Name: '.text$mn'
151 Characteristics: [ IMAGE_SCN_CNT_CODE, IMAGE_SCN_MEM_EXECUTE, IMAGE_SCN_MEM_READ ]151 Characteristics: [ IMAGE_SCN_CNT_CODE, IMAGE_SCN_MEM_EXECUTE, IMAGE_SCN_MEM_READ ]
152 Alignment: 16152 Alignment: 16
153 SectionData: C3153 SectionData: C3
154symbols: 154symbols:
155 - Name: .drectve155 - Name: .drectve
156 Value: 0156 Value: 0
157 SectionNumber: 1157 SectionNumber: 1
158 SimpleType: IMAGE_SYM_TYPE_NULL158 SimpleType: IMAGE_SYM_TYPE_NULL
159 ComplexType: IMAGE_SYM_DTYPE_NULL159 ComplexType: IMAGE_SYM_DTYPE_NULL
160 StorageClass: IMAGE_SYM_CLASS_STATIC160 StorageClass: IMAGE_SYM_CLASS_STATIC
161 SectionDefinition: 161 SectionDefinition:
162 Length: 47162 Length: 47
163 NumberOfRelocations: 0163 NumberOfRelocations: 0
164 NumberOfLinenumbers: 0164 NumberOfLinenumbers: 0
...@@ -170,7 +170,7 @@ symbols:...@@ -170,7 +170,7 @@ symbols:
170 SimpleType: IMAGE_SYM_TYPE_NULL170 SimpleType: IMAGE_SYM_TYPE_NULL
171 ComplexType: IMAGE_SYM_DTYPE_NULL171 ComplexType: IMAGE_SYM_DTYPE_NULL
172 StorageClass: IMAGE_SYM_CLASS_STATIC172 StorageClass: IMAGE_SYM_CLASS_STATIC
173 SectionDefinition: 173 SectionDefinition:
174 Length: 360174 Length: 360
175 NumberOfRelocations: 4175 NumberOfRelocations: 4
176 NumberOfLinenumbers: 0176 NumberOfLinenumbers: 0
...@@ -182,7 +182,7 @@ symbols:...@@ -182,7 +182,7 @@ symbols:
182 SimpleType: IMAGE_SYM_TYPE_NULL182 SimpleType: IMAGE_SYM_TYPE_NULL
183 ComplexType: IMAGE_SYM_DTYPE_NULL183 ComplexType: IMAGE_SYM_DTYPE_NULL
184 StorageClass: IMAGE_SYM_CLASS_STATIC184 StorageClass: IMAGE_SYM_CLASS_STATIC
185 SectionDefinition: 185 SectionDefinition:
186 Length: 568186 Length: 568
187 NumberOfRelocations: 0187 NumberOfRelocations: 0
188 NumberOfLinenumbers: 0188 NumberOfLinenumbers: 0
...@@ -194,7 +194,7 @@ symbols:...@@ -194,7 +194,7 @@ symbols:
194 SimpleType: IMAGE_SYM_TYPE_NULL194 SimpleType: IMAGE_SYM_TYPE_NULL
195 ComplexType: IMAGE_SYM_DTYPE_NULL195 ComplexType: IMAGE_SYM_DTYPE_NULL
196 StorageClass: IMAGE_SYM_CLASS_STATIC196 StorageClass: IMAGE_SYM_CLASS_STATIC
197 SectionDefinition: 197 SectionDefinition:
198 Length: 1198 Length: 1
199 NumberOfRelocations: 0199 NumberOfRelocations: 0
200 NumberOfLinenumbers: 0200 NumberOfLinenumbers: 0
deps/lld/test/COFF/arm-thumb-branch20-error.s created+10
...@@ -0,0 +1,10 @@
1// REQUIRES: arm
2// RUN: llvm-mc -filetype=obj -triple=thumbv7a-windows-gnu %s -o %t.obj
3// RUN: llvm-mc -filetype=obj -triple=thumbv7a-windows-gnu %S/Inputs/far-arm-thumb-abs20.s -o %t.far.obj
4// RUN: not lld-link -entry:_start -subsystem:console %t.obj %t.far.obj -out:%t.exe 2>&1 | FileCheck %s
5 .syntax unified
6 .globl _start
7_start:
8 bne too_far20
9
10// CHECK: relocation out of range
deps/lld/test/COFF/arm64-dynamicbase.s created+8
...@@ -0,0 +1,8 @@
1// REQUIRES: aarch64
2// RUN: llvm-mc -filetype=obj -triple=aarch64-windows %s -o %t.obj
3// RUN: not lld-link -entry:_start -subsystem:console %t.obj -out:%t.exe -dynamicbase:no 2>&1 | FileCheck %s
4 .globl _start
5_start:
6 ret
7
8# CHECK: dynamicbase:no is not compatible with arm64
deps/lld/test/COFF/arm64-import2.test created+85
...@@ -0,0 +1,85 @@
1# REQUIRES: aarch64
2
3# RUN: yaml2obj < %s > %t.obj
4# RUN: llvm-objdump -d %t.obj | FileCheck %s -check-prefix BEFORE
5# RUN: lld-link /entry:main /subsystem:console /out:%t.exe %t.obj %p/Inputs/library-arm64.lib %p/Inputs/library2-arm64.lib
6# RUN: llvm-objdump -d %t.exe | FileCheck %s -check-prefix AFTER
7# RUN: llvm-readobj -coff-imports %t.exe | FileCheck %s -check-prefix IMPORTS
8
9# BEFORE: Disassembly of section .text:
10# BEFORE: 0: 00 00 00 94 bl #0
11# BEFORE: 4: 00 00 00 94 bl #0
12# BEFORE: 8: c0 03 5f d6 ret
13
14# AFTER: Disassembly of section .text:
15# AFTER: 140001000: 03 00 00 94 bl #12
16# AFTER: 140001004: 05 00 00 94 bl #20
17# AFTER: 140001008: c0 03 5f d6 ret
18# AFTER: 14000100c: 10 00 00 b0 adrp x16, #4096
19# AFTER: 140001010: 10 32 40 f9 ldr x16, [x16, #96]
20# AFTER: 140001014: 00 02 1f d6 br x16
21# AFTER: 140001018: 10 00 00 b0 adrp x16, #4096
22# AFTER: 14000101c: 10 3a 40 f9 ldr x16, [x16, #112]
23# AFTER: 140001020: 00 02 1f d6 br x16
24
25# IMPORTS: Import {
26# IMPORTS: Name: library.dll
27# IMPORTS: ImportLookupTableRVA: 0x2040
28# IMPORTS: ImportAddressTableRVA: 0x2060
29# IMPORTS: Symbol: function (2)
30# IMPORTS: }
31# IMPORTS: Import {
32# IMPORTS: Name: library2.dll
33# IMPORTS: ImportLookupTableRVA: 0x2050
34# IMPORTS: ImportAddressTableRVA: 0x2070
35# IMPORTS: Symbol: function2 (0)
36# IMPORTS: }
37
38--- !COFF
39header:
40 Machine: IMAGE_FILE_MACHINE_ARM64
41 Characteristics: [ ]
42sections:
43 - Name: .text
44 Characteristics: [ IMAGE_SCN_CNT_CODE, IMAGE_SCN_MEM_EXECUTE, IMAGE_SCN_MEM_READ ]
45 Alignment: 4
46 SectionData: 0000009400000094C0035FD6
47 Relocations:
48 - VirtualAddress: 0
49 SymbolName: function
50 Type: IMAGE_REL_ARM64_BRANCH26
51 - VirtualAddress: 4
52 SymbolName: function2
53 Type: IMAGE_REL_ARM64_BRANCH26
54symbols:
55 - Name: .text
56 Value: 0
57 SectionNumber: 1
58 SimpleType: IMAGE_SYM_TYPE_NULL
59 ComplexType: IMAGE_SYM_DTYPE_NULL
60 StorageClass: IMAGE_SYM_CLASS_STATIC
61 SectionDefinition:
62 Length: 12
63 NumberOfRelocations: 2
64 NumberOfLinenumbers: 0
65 CheckSum: 1438860354
66 Number: 1
67 - Name: main
68 Value: 0
69 SectionNumber: 1
70 SimpleType: IMAGE_SYM_TYPE_NULL
71 ComplexType: IMAGE_SYM_DTYPE_NULL
72 StorageClass: IMAGE_SYM_CLASS_EXTERNAL
73 - Name: function
74 Value: 0
75 SectionNumber: 0
76 SimpleType: IMAGE_SYM_TYPE_NULL
77 ComplexType: IMAGE_SYM_DTYPE_NULL
78 StorageClass: IMAGE_SYM_CLASS_EXTERNAL
79 - Name: function2
80 Value: 0
81 SectionNumber: 0
82 SimpleType: IMAGE_SYM_TYPE_NULL
83 ComplexType: IMAGE_SYM_DTYPE_NULL
84 StorageClass: IMAGE_SYM_CLASS_EXTERNAL
85...
deps/lld/test/COFF/arm64-relocs-imports.test+130-23
...@@ -14,29 +14,67 @@...@@ -14,29 +14,67 @@
14# BEFORE: 14: 00 01 40 79 ldrh w0, [x8]14# BEFORE: 14: 00 01 40 79 ldrh w0, [x8]
15# BEFORE: 18: 00 01 40 b9 ldr w0, [x8]15# BEFORE: 18: 00 01 40 b9 ldr w0, [x8]
16# BEFORE: 1c: 00 01 40 f9 ldr x0, [x8]16# BEFORE: 1c: 00 01 40 f9 ldr x0, [x8]
17# BEFORE: 20: e0 03 1f 2a mov w0, wzr17# BEFORE: 20: 00 01 00 39 strb w0, [x8]
18# BEFORE: 24: fe 07 41 f8 ldr x30, [sp], #1618# BEFORE: 24: 00 01 00 79 strh w0, [x8]
19# BEFORE: 28: c0 03 5f d6 ret19# BEFORE: 28: 00 01 00 b9 str w0, [x8]
20# BEFORE: 2c: 08 00 00 00 <unknown>20# BEFORE: 2c: 00 01 00 f9 str x0, [x8]
21# BEFORE: 30: 00 00 00 00 <unknown>21# BEFORE: 30: 00 01 40 3d ldr b0, [x8]
22# BEFORE: 34: 00 01 40 7d ldr h0, [x8]
23# BEFORE: 38: 00 01 40 bd ldr s0, [x8]
24# BEFORE: 3c: 00 01 40 fd ldr d0, [x8]
25# BEFORE: 40: 00 01 c0 3d ldr q0, [x8]
26# BEFORE: 44: 00 01 00 3d str b0, [x8]
27# BEFORE: 48: 00 01 00 7d str h0, [x8]
28# BEFORE: 4c: 00 01 00 bd str s0, [x8]
29# BEFORE: 50: 00 01 00 fd str d0, [x8]
30# BEFORE: 54: 00 01 80 3d str q0, [x8]
31# BEFORE: 58: 00 05 40 f9 ldr x0, [x8, #8]
32# BEFORE: 5c: 20 1a 01 b0 adrp x0, #36982784
33# BEFORE: 60: 00 fc 4f f9 ldr x0, [x0, #8184]
34# BEFORE: 64: e0 03 1f 2a mov w0, wzr
35# BEFORE: 68: fe 07 41 f8 ldr x30, [sp], #16
36# BEFORE: 6c: c0 03 5f d6 ret
37# BEFORE: 70: 08 00 00 00 <unknown>
38# BEFORE: 74: 00 00 00 00 <unknown>
39# BEFORE: 78: 01 00 00 00 <unknown>
40# BEFORE: 7c: 01 00 00 00 <unknown>
2241
23# AFTER: Disassembly of section .text:42# AFTER: Disassembly of section .text:
24# AFTER: 140002000: fe 0f 1f f8 str x30, [sp, #-16]!43# AFTER: 140002000: fe 0f 1f f8 str x30, [sp, #-16]!
25# AFTER: 140002004: e0 ff ff f0 adrp x0, #-409644# AFTER: 140002004: e0 ff ff f0 adrp x0, #-4096
26# AFTER: 140002008: 00 18 00 91 add x0, x0, #645# AFTER: 140002008: 00 18 00 91 add x0, x0, #6
27# AFTER: 14000200c: 0a 00 00 94 bl #4046# AFTER: 14000200c: 1d 00 00 94 bl #116
28# AFTER: 140002010: 00 21 40 39 ldrb w0, [x8, #8]47# AFTER: 140002010: 00 21 40 39 ldrb w0, [x8, #8]
29# AFTER: 140002014: 00 11 40 79 ldrh w0, [x8, #8]48# AFTER: 140002014: 00 11 40 79 ldrh w0, [x8, #8]
30# AFTER: 140002018: 00 09 40 b9 ldr w0, [x8, #8]49# AFTER: 140002018: 00 09 40 b9 ldr w0, [x8, #8]
31# AFTER: 14000201c: 00 05 40 f9 ldr x0, [x8, #8]50# AFTER: 14000201c: 00 05 40 f9 ldr x0, [x8, #8]
32# AFTER: 140002020: e0 03 1f 2a mov w0, wzr51# AFTER: 140002020: 00 21 00 39 strb w0, [x8, #8]
33# AFTER: 140002024: fe 07 41 f8 ldr x30, [sp], #1652# AFTER: 140002024: 00 11 00 79 strh w0, [x8, #8]
34# AFTER: 140002028: c0 03 5f d6 ret53# AFTER: 140002028: 00 09 00 b9 str w0, [x8, #8]
35# AFTER: 14000202c: 10 10 00 40 <unknown>54# AFTER: 14000202c: 00 05 00 f9 str x0, [x8, #8]
36# AFTER: 140002030: 01 00 00 00 <unknown>55# AFTER: 140002030: 00 41 40 3d ldr b0, [x8, #16]
37# AFTER: 140002034: 10 00 00 b0 adrp x16, #409656# AFTER: 140002034: 00 21 40 7d ldr h0, [x8, #16]
38# AFTER: 140002038: 10 1e 40 f9 ldr x16, [x16, #56]57# AFTER: 140002038: 00 11 40 bd ldr s0, [x8, #16]
39# AFTER: 14000203c: 00 02 1f d6 br x1658# AFTER: 14000203c: 00 09 40 fd ldr d0, [x8, #16]
59# AFTER: 140002040: 00 05 c0 3d ldr q0, [x8, #16]
60# AFTER: 140002044: 00 41 00 3d str b0, [x8, #16]
61# AFTER: 140002048: 00 21 00 7d str h0, [x8, #16]
62# AFTER: 14000204c: 00 11 00 bd str s0, [x8, #16]
63# AFTER: 140002050: 00 09 00 fd str d0, [x8, #16]
64# AFTER: 140002054: 00 05 80 3d str q0, [x8, #16]
65# AFTER: 140002058: 00 09 40 f9 ldr x0, [x8, #16]
66# AFTER: 14000205c: 00 00 00 b0 adrp x0, #4096
67# AFTER: 140002060: 00 fc 47 f9 ldr x0, [x0, #4088]
68# AFTER: 140002064: e0 03 1f 2a mov w0, wzr
69# AFTER: 140002068: fe 07 41 f8 ldr x30, [sp], #16
70# AFTER: 14000206c: c0 03 5f d6 ret
71# AFTER: 140002070: 10 10 00 40 <unknown>
72# AFTER: 140002074: 01 00 00 00 <unknown>
73# AFTER: 140002078: 09 10 00 00 <unknown>
74# AFTER: 14000207c: 09 00 00 00 <unknown>
75# AFTER: 140002080: 10 00 00 b0 adrp x16, #4096
76# AFTER: 140002084: 10 1e 40 f9 ldr x16, [x16, #56]
77# AFTER: 140002088: 00 02 1f d6 br x16
4078
41--- !COFF79--- !COFF
42header:80header:
...@@ -46,32 +84,89 @@ sections:...@@ -46,32 +84,89 @@ sections:
46 - Name: .text84 - Name: .text
47 Characteristics: [ IMAGE_SCN_CNT_CODE, IMAGE_SCN_MEM_EXECUTE, IMAGE_SCN_MEM_READ ]85 Characteristics: [ IMAGE_SCN_CNT_CODE, IMAGE_SCN_MEM_EXECUTE, IMAGE_SCN_MEM_READ ]
48 Alignment: 486 Alignment: 4
49 SectionData: FE0F1FF80000009000080091000000940001403900014079000140B9000140F9E0031F2AFE0741F8C0035FD6080000000000000087 SectionData: FE0F1FF80000009000080091000000940001403900014079000140B9000140F90001003900010079000100B9000100F90001403D0001407D000140BD000140FD0001C03D0001003D0001007D000100BD000100FD0001803D000540F9201A01B000FC4FF9E0031F2AFE0741F8C0035FD608000000000000000100000001000000
50 Relocations:88 Relocations:
51 - VirtualAddress: 489 - VirtualAddress: 4
52 SymbolName: .Lstr90 SymbolName: .Lstr
53 Type: 491 Type: IMAGE_REL_ARM64_PAGEBASE_REL21
54 - VirtualAddress: 892 - VirtualAddress: 8
55 SymbolName: .Lstr93 SymbolName: .Lstr
56 Type: 694 Type: IMAGE_REL_ARM64_PAGEOFFSET_12A
57 - VirtualAddress: 1295 - VirtualAddress: 12
58 SymbolName: function96 SymbolName: function
59 Type: 397 Type: IMAGE_REL_ARM64_BRANCH26
60 - VirtualAddress: 1698 - VirtualAddress: 16
61 SymbolName: .Lglobal99 SymbolName: .Lglobal
62 Type: 7100 Type: IMAGE_REL_ARM64_PAGEOFFSET_12L
63 - VirtualAddress: 20101 - VirtualAddress: 20
64 SymbolName: .Lglobal102 SymbolName: .Lglobal
65 Type: 7103 Type: IMAGE_REL_ARM64_PAGEOFFSET_12L
66 - VirtualAddress: 24104 - VirtualAddress: 24
67 SymbolName: .Lglobal105 SymbolName: .Lglobal
68 Type: 7106 Type: IMAGE_REL_ARM64_PAGEOFFSET_12L
69 - VirtualAddress: 28107 - VirtualAddress: 28
70 SymbolName: .Lglobal108 SymbolName: .Lglobal
71 Type: 7109 Type: IMAGE_REL_ARM64_PAGEOFFSET_12L
110 - VirtualAddress: 32
111 SymbolName: .Lglobal
112 Type: IMAGE_REL_ARM64_PAGEOFFSET_12L
113 - VirtualAddress: 36
114 SymbolName: .Lglobal
115 Type: IMAGE_REL_ARM64_PAGEOFFSET_12L
116 - VirtualAddress: 40
117 SymbolName: .Lglobal
118 Type: IMAGE_REL_ARM64_PAGEOFFSET_12L
72 - VirtualAddress: 44119 - VirtualAddress: 44
73 SymbolName: .Lglobal120 SymbolName: .Lglobal
74 Type: 14121 Type: IMAGE_REL_ARM64_PAGEOFFSET_12L
122 - VirtualAddress: 48
123 SymbolName: .Lglobal16
124 Type: IMAGE_REL_ARM64_PAGEOFFSET_12L
125 - VirtualAddress: 52
126 SymbolName: .Lglobal16
127 Type: IMAGE_REL_ARM64_PAGEOFFSET_12L
128 - VirtualAddress: 56
129 SymbolName: .Lglobal16
130 Type: IMAGE_REL_ARM64_PAGEOFFSET_12L
131 - VirtualAddress: 60
132 SymbolName: .Lglobal16
133 Type: IMAGE_REL_ARM64_PAGEOFFSET_12L
134 - VirtualAddress: 64
135 SymbolName: .Lglobal16
136 Type: IMAGE_REL_ARM64_PAGEOFFSET_12L
137 - VirtualAddress: 68
138 SymbolName: .Lglobal16
139 Type: IMAGE_REL_ARM64_PAGEOFFSET_12L
140 - VirtualAddress: 72
141 SymbolName: .Lglobal16
142 Type: IMAGE_REL_ARM64_PAGEOFFSET_12L
143 - VirtualAddress: 76
144 SymbolName: .Lglobal16
145 Type: IMAGE_REL_ARM64_PAGEOFFSET_12L
146 - VirtualAddress: 80
147 SymbolName: .Lglobal16
148 Type: IMAGE_REL_ARM64_PAGEOFFSET_12L
149 - VirtualAddress: 84
150 SymbolName: .Lglobal16
151 Type: IMAGE_REL_ARM64_PAGEOFFSET_12L
152 - VirtualAddress: 88
153 SymbolName: .Lglobal
154 Type: IMAGE_REL_ARM64_PAGEOFFSET_12L
155 - VirtualAddress: 92
156 SymbolName: .Lglobal16
157 Type: IMAGE_REL_ARM64_PAGEBASE_REL21
158 - VirtualAddress: 96
159 SymbolName: .Lglobal0
160 Type: IMAGE_REL_ARM64_PAGEOFFSET_12L
161 - VirtualAddress: 112
162 SymbolName: .Lglobal
163 Type: IMAGE_REL_ARM64_ADDR64
164 - VirtualAddress: 120
165 SymbolName: .Lglobal
166 Type: IMAGE_REL_ARM64_ADDR32NB
167 - VirtualAddress: 124
168 SymbolName: .Lglobal
169 Type: IMAGE_REL_ARM64_SECREL
75 - Name: .data170 - Name: .data
76 Characteristics: [ IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_READ, IMAGE_SCN_MEM_WRITE ]171 Characteristics: [ IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_READ, IMAGE_SCN_MEM_WRITE ]
77 Alignment: 4172 Alignment: 4
...@@ -127,6 +222,18 @@ symbols:...@@ -127,6 +222,18 @@ symbols:
127 SimpleType: IMAGE_SYM_TYPE_NULL222 SimpleType: IMAGE_SYM_TYPE_NULL
128 ComplexType: IMAGE_SYM_DTYPE_NULL223 ComplexType: IMAGE_SYM_DTYPE_NULL
129 StorageClass: IMAGE_SYM_CLASS_STATIC224 StorageClass: IMAGE_SYM_CLASS_STATIC
225 - Name: .Lglobal16
226 Value: 16
227 SectionNumber: 4
228 SimpleType: IMAGE_SYM_TYPE_NULL
229 ComplexType: IMAGE_SYM_DTYPE_NULL
230 StorageClass: IMAGE_SYM_CLASS_STATIC
231 - Name: .Lglobal0
232 Value: 0
233 SectionNumber: 4
234 SimpleType: IMAGE_SYM_TYPE_NULL
235 ComplexType: IMAGE_SYM_DTYPE_NULL
236 StorageClass: IMAGE_SYM_CLASS_STATIC
130 - Name: function237 - Name: function
131 Value: 0238 Value: 0
132 SectionNumber: 0239 SectionNumber: 0
deps/lld/test/COFF/armnt-blx23t.test+1-1
...@@ -37,7 +37,7 @@ sections:...@@ -37,7 +37,7 @@ sections:
37 Relocations:37 Relocations:
38 - VirtualAddress: 1238 - VirtualAddress: 12
39 SymbolName: identity39 SymbolName: identity
40 Type: 2140 Type: IMAGE_REL_ARM_BLX23T
41symbols:41symbols:
42 - Name: .text42 - Name: .text
43 Value: 043 Value: 0
deps/lld/test/COFF/armnt-branch24t.test+1-1
...@@ -30,7 +30,7 @@ sections:...@@ -30,7 +30,7 @@ sections:
30 Relocations:30 Relocations:
31 - VirtualAddress: 631 - VirtualAddress: 6
32 SymbolName: identity32 SymbolName: identity
33 Type: 2033 Type: IMAGE_REL_ARM_BRANCH24T
34symbols:34symbols:
35 - Name: .text35 - Name: .text
36 Value: 036 Value: 0
deps/lld/test/COFF/armnt-dynamicbase.test created+3
...@@ -0,0 +1,3 @@
1# RUN: yaml2obj < %p/Inputs/armnt-executable.obj.yaml > %t.obj
2# RUN: not lld-link /out:%t.exe /entry:mainCRTStartup /subsystem:console %t.obj /dynamicbase:no 2>&1 | FileCheck %s
3# CHECK: dynamicbase:no is not compatible with arm
deps/lld/test/COFF/armnt-imports.test+1-1
...@@ -22,7 +22,7 @@ sections:...@@ -22,7 +22,7 @@ sections:
22 Relocations:22 Relocations:
23 - VirtualAddress: 023 - VirtualAddress: 0
24 SymbolName: __imp_function24 SymbolName: __imp_function
25 Type: 1725 Type: IMAGE_REL_ARM_MOV32T
26symbols:26symbols:
27 - Name: .text27 - Name: .text
28 Value: 028 Value: 0
deps/lld/test/COFF/armnt-mov32t-exec.test+1-1
...@@ -31,7 +31,7 @@ sections:...@@ -31,7 +31,7 @@ sections:
31 Relocations:31 Relocations:
32 - VirtualAddress: 432 - VirtualAddress: 4
33 SymbolName: function33 SymbolName: function
34 Type: 1734 Type: IMAGE_REL_ARM_MOV32T
35symbols:35symbols:
36 - Name: .text36 - Name: .text
37 Value: 037 Value: 0
deps/lld/test/COFF/armnt-movt32t.test+1-1
...@@ -27,7 +27,7 @@ sections:...@@ -27,7 +27,7 @@ sections:
27 Relocations:27 Relocations:
28 - VirtualAddress: 028 - VirtualAddress: 0
29 SymbolName: buffer29 SymbolName: buffer
30 Type: 1730 Type: IMAGE_REL_ARM_MOV32T
31 - Name: .rdata31 - Name: .rdata
32 Characteristics: [ IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_READ ]32 Characteristics: [ IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_READ ]
33 Alignment: 133 Alignment: 1
deps/lld/test/COFF/common-alignment.test created+78
...@@ -0,0 +1,78 @@
1# REQUIRES: x86
2# RUN: yaml2obj %s > %t.obj
3# RUN: lld-link /out:%t.exe /entry:main %t.obj %t.obj
4# RUN: llvm-objdump -d %t.exe | FileCheck %s
5
6# Operands of B8 (MOV EAX) are common symbols
7# CHECK: 3000: b8 00 10 00 40
8# CHECK: 3005: b8 10 10 00 40
9
10--- !COFF
11header:
12 Machine: IMAGE_FILE_MACHINE_AMD64
13 Characteristics: []
14sections:
15 - Name: .text
16 Characteristics: [ IMAGE_SCN_CNT_CODE, IMAGE_SCN_MEM_EXECUTE, IMAGE_SCN_MEM_READ ]
17 Alignment: 4
18 SectionData: b800000000b800000000
19 Relocations:
20 - VirtualAddress: 1
21 SymbolName: bssdata4
22 Type: IMAGE_REL_AMD64_ADDR32
23 - VirtualAddress: 6
24 SymbolName: bssdata4_align16
25 Type: IMAGE_REL_AMD64_ADDR32
26 - Name: .data
27 Characteristics: [ IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_READ, IMAGE_SCN_MEM_WRITE ]
28 Alignment: 4
29 SectionData: 03000000
30 - Name: .drectve
31 Characteristics: [ IMAGE_SCN_LNK_INFO, IMAGE_SCN_LNK_REMOVE ]
32 Alignment: 1
33 SectionData: 202d616c69676e636f6d6d3a62737364617461345f616c69676e31362c340a # -aligncomm:bssdata4_align16,4
34
35symbols:
36 - Name: .text
37 Value: 0
38 SectionNumber: 1
39 SimpleType: IMAGE_SYM_TYPE_NULL
40 ComplexType: IMAGE_SYM_DTYPE_NULL
41 StorageClass: IMAGE_SYM_CLASS_STATIC
42 SectionDefinition:
43 Length: 0
44 NumberOfRelocations: 5
45 NumberOfLinenumbers: 0
46 CheckSum: 0
47 Number: 0
48 - Name: .data
49 Value: 0
50 SectionNumber: 2
51 SimpleType: IMAGE_SYM_TYPE_NULL
52 ComplexType: IMAGE_SYM_DTYPE_NULL
53 StorageClass: IMAGE_SYM_CLASS_STATIC
54 SectionDefinition:
55 Length: 4
56 NumberOfRelocations: 0
57 NumberOfLinenumbers: 0
58 CheckSum: 0
59 Number: 0
60 - Name: main
61 Value: 0
62 SectionNumber: 1
63 SimpleType: IMAGE_SYM_TYPE_NULL
64 ComplexType: IMAGE_SYM_DTYPE_FUNCTION
65 StorageClass: IMAGE_SYM_CLASS_EXTERNAL
66 - Name: bssdata4
67 Value: 4
68 SectionNumber: 0
69 SimpleType: IMAGE_SYM_TYPE_NULL
70 ComplexType: IMAGE_SYM_DTYPE_NULL
71 StorageClass: IMAGE_SYM_CLASS_EXTERNAL
72 - Name: bssdata4_align16
73 Value: 4
74 SectionNumber: 0
75 SimpleType: IMAGE_SYM_TYPE_NULL
76 ComplexType: IMAGE_SYM_DTYPE_NULL
77 StorageClass: IMAGE_SYM_CLASS_EXTERNAL
78...
deps/lld/test/COFF/ctors_dtors_priority.s created+30
...@@ -0,0 +1,30 @@
1# REQUIRES: x86
2# RUN: llvm-mc -triple=x86_64-windows-gnu -filetype=obj -o %t.obj %s
3# RUN: lld-link -entry:main %t.obj -out:%t.exe
4# RUN: llvm-objdump -s %t.exe | FileCheck %s
5
6.globl main
7main:
8 nop
9
10.section .ctors.00005, "w"
11 .quad 2
12.section .ctors, "w"
13 .quad 1
14.section .ctors.00100, "w"
15 .quad 3
16
17.section .dtors, "w"
18 .quad 1
19.section .dtors.00100, "w"
20 .quad 3
21.section .dtors.00005, "w"
22 .quad 2
23
24# CHECK: Contents of section .ctors:
25# CHECK-NEXT: 140001000 01000000 00000000 02000000 00000000
26# CHECK-NEXT: 140001010 03000000 00000000
27
28# CHECK: Contents of section .dtors:
29# CHECK-NEXT: 140002000 01000000 00000000 02000000 00000000
30# CHECK-NEXT: 140002010 03000000 00000000
deps/lld/test/COFF/debug-dwarf.test created+19
...@@ -0,0 +1,19 @@
1# Check that /debug creates %t.pdb.
2# RUN: rm -f %t.pdb
3# RUN: lld-link /debug /entry:main /out:%t.exe %p/Inputs/ret42.obj
4# RUN: ls %t.pdb
5
6# Check that /debug:dwarf does not create %t.pdb.
7# RUN: rm -f %t.pdb
8# RUN: lld-link /debug:dwarf /entry:main /out:%t.exe %p/Inputs/ret42.obj
9# RUN: not ls %t.pdb
10
11# Check that /debug:dwarf /debug creates %t.pdb.
12# RUN: rm -f %t.pdb
13# RUN: lld-link /debug:dwarf /debug /entry:main /out:%t.exe %p/Inputs/ret42.obj
14# RUN: ls %t.pdb
15
16# Check that /debug:dwarf /pdb:%t.pdb does not create %t.pdb.
17# RUN: rm -f %t.pdb
18# RUN: lld-link /debug:dwarf /pdb:%t.pdb /entry:main /out:%t.exe %p/Inputs/ret42.obj
19# RUN: not ls %t.pdb
deps/lld/test/COFF/def-export-stdcall.s+73-5
...@@ -1,21 +1,89 @@...@@ -1,21 +1,89 @@
1# REQUIRES: x861# REQUIRES: x86
2# RUN: llvm-mc -filetype=obj -triple=i686-windows-msvc %s -o %t.obj2# RUN: llvm-mc -filetype=obj -triple=i686-windows-msvc %s -o %t.obj
3# RUN: echo -e "LIBRARY foo\nEXPORTS\n stdcall" > %t.def3# RUN: echo -e "LIBRARY foo\nEXPORTS\n stdcall\n fastcall\n vectorcall\n _underscored" > %t.def
4# RUN: lld-link -entry:dllmain -dll -def:%t.def %t.obj -out:%t.dll -implib:%t.lib4# RUN: lld-link -entry:dllmain -dll -def:%t.def %t.obj -out:%t.dll -implib:%t.lib
5# RUN: llvm-readobj %t.lib | FileCheck %s5# RUN: llvm-readobj %t.lib | FileCheck -check-prefix UNDECORATED-IMPLIB %s
6# CHECK: Name type: undecorate6# RUN: llvm-readobj -coff-exports %t.dll | FileCheck -check-prefix UNDECORATED-EXPORTS %s
7# CHECK: __imp__stdcall@87
8# CHECK: _stdcall@88# UNDECORATED-IMPLIB: Name type: noprefix
9# UNDECORATED-IMPLIB-NEXT: __imp___underscored
10# UNDECORATED-IMPLIB-NEXT: __underscored
11# UNDECORATED-IMPLIB: Name type: undecorate
12# UNDECORATED-IMPLIB-NEXT: __imp_@fastcall@8
13# UNDECORATED-IMPLIB-NEXT: fastcall@8
14# UNDECORATED-IMPLIB: Name type: undecorate
15# UNDECORATED-IMPLIB-NEXT: __imp__stdcall@8
16# UNDECORATED-IMPLIB-NEXT: _stdcall@8
17# UNDECORATED-IMPLIB: Name type: undecorate
18# UNDECORATED-IMPLIB-NEXT: __imp_vectorcall@@8
19# UNDECORATED-IMPLIB-NEXT: vectorcall@@8
20
21# UNDECORATED-EXPORTS: Name: _underscored
22# UNDECORATED-EXPORTS: Name: fastcall
23# UNDECORATED-EXPORTS: Name: stdcall
24# UNDECORATED-EXPORTS: Name: vectorcall
25
26
27# RUN: echo -e "LIBRARY foo\nEXPORTS\n _stdcall@8\n @fastcall@8\n vectorcall@@8" > %t.def
28# RUN: lld-link -entry:dllmain -dll -def:%t.def %t.obj -out:%t.dll -implib:%t.lib
29# RUN: llvm-readobj %t.lib | FileCheck -check-prefix DECORATED-IMPLIB %s
30# RUN: llvm-readobj -coff-exports %t.dll | FileCheck -check-prefix DECORATED-EXPORTS %s
31
32# DECORATED-IMPLIB: Name type: name
33# DECORATED-IMPLIB-NEXT: __imp_@fastcall@8
34# DECORATED-IMPLIB-NEXT: @fastcall@8
35# TODO: To match link.exe, this one should also be Name type: name.
36# DECORATED-IMPLIB: Name type: noprefix
37# DECORATED-IMPLIB-NEXT: __imp__stdcall@8
38# DECORATED-IMPLIB-NEXT: _stdcall@8
39# DECORATED-IMPLIB: Name type: name
40# DECORATED-IMPLIB-NEXT: __imp_vectorcall@@8
41# DECORATED-IMPLIB-NEXT: vectorcall@@8
42
43# DECORATED-EXPORTS: Name: @fastcall@8
44# TODO: To match link.exe, this one should actually be _stdcall@8
45# DECORATED-EXPORTS: Name: stdcall@8
46# DECORATED-EXPORTS: Name: vectorcall@@8
47
48
49# RUN: echo -e "LIBRARY foo\nEXPORTS\n stdcall@8\n @fastcall@8" > %t.def
50# RUN: lld-link -lldmingw -entry:dllmain -dll -def:%t.def %t.obj -out:%t.dll -implib:%t.lib
51# RUN: llvm-readobj %t.lib | FileCheck -check-prefix DECORATED-MINGW-IMPLIB %s
52# RUN: llvm-readobj -coff-exports %t.dll | FileCheck -check-prefix DECORATED-MINGW-EXPORTS %s
53
54# DECORATED-MINGW-IMPLIB: Name type: name
55# DECORATED-MINGW-IMPLIB-NEXT: __imp_@fastcall@8
56# DECORATED-MINGW-IMPLIB-NEXT: fastcall@8
57# DECORATED-MINGW-IMPLIB: Name type: noprefix
58# DECORATED-MINGW-IMPLIB-NEXT: __imp__stdcall@8
59# DECORATED-MINGW-IMPLIB-NEXT: _stdcall@8
60
61# DECORATED-MINGW-EXPORTS: Name: @fastcall@8
62# DECORATED-MINGW-EXPORTS: Name: stdcall@8
63
964
10 .def _stdcall@8;65 .def _stdcall@8;
11 .scl 2;66 .scl 2;
12 .type 32;67 .type 32;
13 .endef68 .endef
14 .globl _stdcall@869 .globl _stdcall@8
70 .globl @fastcall@8
71 .globl vectorcall@@8
72 .globl __underscored
15_stdcall@8:73_stdcall@8:
16 movl 8(%esp), %eax74 movl 8(%esp), %eax
17 addl 4(%esp), %eax75 addl 4(%esp), %eax
18 retl $876 retl $8
77@fastcall@8:
78 movl 8(%esp), %eax
79 addl 4(%esp), %eax
80 retl $8
81vectorcall@@8:
82 movl 8(%esp), %eax
83 addl 4(%esp), %eax
84 retl $8
85__underscored:
86 ret
1987
20 .def _dllmain;88 .def _dllmain;
21 .scl 2;89 .scl 2;
deps/lld/test/COFF/delayimports-armnt.yaml created+106
...@@ -0,0 +1,106 @@
1# REQUIRES: arm
2# RUN: yaml2obj < %s > %t.obj
3# RUN: lld-link %t.obj %p/Inputs/library.lib /subsystem:console \
4# RUN: /entry:mainCRTStartup /alternatename:__delayLoadHelper2=mainCRTStartup \
5# RUN: /delayload:library.dll /out:%t.exe
6# RUN: llvm-readobj -coff-imports %t.exe | FileCheck -check-prefix=IMPORT %s
7# RUN: llvm-readobj -coff-basereloc %t.exe | FileCheck -check-prefix=BASEREL %s
8# RUN: llvm-objdump -d %t.exe | FileCheck -check-prefix=DISASM %s
9
10# IMPORT: Format: COFF-ARM
11# IMPORT-NEXT: Arch: thumb
12# IMPORT-NEXT: AddressSize: 32bit
13# IMPORT-NEXT: DelayImport {
14# IMPORT-NEXT: Name: library.dll
15# IMPORT-NEXT: Attributes: 0x1
16# IMPORT-NEXT: ModuleHandle: 0x3000
17# IMPORT-NEXT: ImportAddressTable: 0x3008
18# IMPORT-NEXT: ImportNameTable: 0x2040
19# IMPORT-NEXT: BoundDelayImportTable: 0x0
20# IMPORT-NEXT: UnloadDelayImportTable: 0x0
21# IMPORT-NEXT: Import {
22# IMPORT-NEXT: Symbol: function (0)
23# IMPORT-NEXT: Address: 0x401019
24# IMPORT-NEXT: }
25# IMPORT-NEXT: }
26#
27# BASEREL: BaseReloc [
28# BASEREL-NEXT: Entry {
29# BASEREL-NEXT: Type: ARM_MOV32(T)
30# BASEREL-NEXT: Address: 0x1000
31# BASEREL-NEXT: }
32# BASEREL-NEXT: Entry {
33# BASEREL-NEXT: Type: ARM_MOV32(T)
34# BASEREL-NEXT: Address: 0x100C
35# BASEREL-NEXT: }
36# BASEREL-NEXT: Entry {
37# BASEREL-NEXT: Type: ARM_MOV32(T)
38# BASEREL-NEXT: Address: 0x1018
39# BASEREL-NEXT: }
40# BASEREL-NEXT: Entry {
41# BASEREL-NEXT: Type: ARM_MOV32(T)
42# BASEREL-NEXT: Address: 0x102E
43# BASEREL-NEXT: }
44# BASEREL-NEXT: Entry {
45# BASEREL-NEXT: Type: HIGHLOW
46# BASEREL-NEXT: Address: 0x3008
47# BASEREL-NEXT: }
48# BASEREL-NEXT: Entry {
49# BASEREL-NEXT: Type: ABSOLUTE
50# BASEREL-NEXT: Address: 0x3000
51# BASEREL-NEXT: }
52# BASEREL-NEXT: ]
53#
54# DISASM: 401018: 43 f2 08 0c movw r12, #12296
55# DISASM-NEXT: 40101c: c0 f2 40 0c movt r12, #64
56# DISASM-NEXT: 401020: 2d e9 0f 48 push.w {r0, r1, r2, r3, r11, lr}
57# DISASM-NEXT: 401024: 0d f2 10 0b addw r11, sp, #16
58# DISASM-NEXT: 401028: 2d ed 10 0b vpush {d0, d1, d2, d3, d4, d5, d6, d7}
59# DISASM-NEXT: 40102c: 61 46 mov r1, r12
60# DISASM-NEXT: 40102e: 42 f2 00 00 movw r0, #8192
61# DISASM-NEXT: 401032: c0 f2 40 00 movt r0, #64
62# DISASM-NEXT: 401036: ff f7 e3 ff bl #-58
63# DISASM-NEXT: 40103a: 84 46 mov r12, r0
64# DISASM-NEXT: 40103c: bd ec 10 0b vpop {d0, d1, d2, d3, d4, d5, d6, d7}
65# DISASM-NEXT: 401040: bd e8 0f 48 pop.w {r0, r1, r2, r3, r11, lr}
66# DISASM-NEXT: 401044: 60 47 bx r12
67
68--- !COFF
69header:
70 Machine: IMAGE_FILE_MACHINE_ARMNT
71 Characteristics: [ ]
72sections:
73 - Name: .text
74 Characteristics: [ IMAGE_SCN_CNT_CODE, IMAGE_SCN_MEM_PURGEABLE, IMAGE_SCN_MEM_16BIT, IMAGE_SCN_MEM_EXECUTE, IMAGE_SCN_MEM_READ ]
75 Alignment: 4
76 SectionData: 40F20000C0F2000000680047
77 Relocations:
78 - VirtualAddress: 0
79 SymbolName: __imp_function
80 Type: IMAGE_REL_ARM_MOV32T
81symbols:
82 - Name: .text
83 Value: 0
84 SectionNumber: 1
85 SimpleType: IMAGE_SYM_TYPE_NULL
86 ComplexType: IMAGE_SYM_DTYPE_NULL
87 StorageClass: IMAGE_SYM_CLASS_STATIC
88 SectionDefinition:
89 Length: 12
90 NumberOfRelocations: 1
91 NumberOfLinenumbers: 0
92 CheckSum: 0
93 Number: 1
94 - Name: mainCRTStartup
95 Value: 0
96 SectionNumber: 1
97 SimpleType: IMAGE_SYM_TYPE_NULL
98 ComplexType: IMAGE_SYM_DTYPE_FUNCTION
99 StorageClass: IMAGE_SYM_CLASS_EXTERNAL
100 - Name: __imp_function
101 Value: 0
102 SectionNumber: 0
103 SimpleType: IMAGE_SYM_TYPE_NULL
104 ComplexType: IMAGE_SYM_DTYPE_NULL
105 StorageClass: IMAGE_SYM_CLASS_EXTERNAL
106...
deps/lld/test/COFF/delayimports32.test+2-2
...@@ -73,7 +73,7 @@ BASEREL-NEXT: ]...@@ -73,7 +73,7 @@ BASEREL-NEXT: ]
7373
74DISASM: 202b: 68 20 10 40 00 pushl $419843274DISASM: 202b: 68 20 10 40 00 pushl $4198432
75DISASM-NEXT: 2030: 68 00 40 40 00 pushl $421068875DISASM-NEXT: 2030: 68 00 40 40 00 pushl $4210688
76DISASM-NEXT: 2035: e8 c6 ff ff ff calll -58 <_main@0>76DISASM-NEXT: 2035: e8 c6 ff ff ff calll -58 <.text>
77DISASM-NEXT: 203a: 5a popl %edx77DISASM-NEXT: 203a: 5a popl %edx
78DISASM-NEXT: 203b: 59 popl %ecx78DISASM-NEXT: 203b: 59 popl %ecx
79DISASM-NEXT: 203c: ff e0 jmpl *%eax79DISASM-NEXT: 203c: ff e0 jmpl *%eax
...@@ -81,7 +81,7 @@ DISASM-NEXT: 203e: 51 pushl %ecx...@@ -81,7 +81,7 @@ DISASM-NEXT: 203e: 51 pushl %ecx
81DISASM-NEXT: 203f: 52 pushl %edx81DISASM-NEXT: 203f: 52 pushl %edx
82DISASM-NEXT: 2040: 68 24 10 40 00 pushl $419843682DISASM-NEXT: 2040: 68 24 10 40 00 pushl $4198436
83DISASM-NEXT: 2045: 68 00 40 40 00 pushl $421068883DISASM-NEXT: 2045: 68 00 40 40 00 pushl $4210688
84DISASM-NEXT: 204a: e8 b1 ff ff ff calll -79 <_main@0>84DISASM-NEXT: 204a: e8 b1 ff ff ff calll -79 <.text>
85DISASM-NEXT: 204f: 5a popl %edx85DISASM-NEXT: 204f: 5a popl %edx
86DISASM-NEXT: 2050: 59 popl %ecx86DISASM-NEXT: 2050: 59 popl %ecx
87DISASM-NEXT: 2051: ff e0 jmpl *%eax87DISASM-NEXT: 2051: ff e0 jmpl *%eax
deps/lld/test/COFF/dllexport-mingw.s created+24
...@@ -0,0 +1,24 @@
1# REQEUIRES: x86
2
3# RUN: llvm-mc -triple=i686-windows-gnu %s -filetype=obj -o %t.obj
4
5# RUN: lld-link -lldmingw -dll -out:%t.dll -entry:main %t.obj -implib:%t.lib
6# RUN: llvm-readobj %t.lib | FileCheck %s
7
8# CHECK: Symbol: __imp___underscoredFunc
9# CHECK: Symbol: __underscoredFunc
10# CHECK: Symbol: __imp__func
11# CHECK: Symbol: _func
12
13.global _main
14.global _func
15.global __underscoredFunc
16.text
17_main:
18 ret
19_func:
20 ret
21__underscoredFunc:
22 ret
23.section .drectve
24.ascii "-export:func -export:_underscoredFunc"
deps/lld/test/COFF/driver.test+3
...@@ -1,3 +1,6 @@...@@ -1,3 +1,6 @@
1# RUN: not lld-link nosuchfile.obj >& %t.log1# RUN: not lld-link nosuchfile.obj >& %t.log
2# RUN: FileCheck -check-prefix=MISSING %s < %t.log2# RUN: FileCheck -check-prefix=MISSING %s < %t.log
3MISSING: nosuchfile.obj: {{[Nn]}}o such file or directory3MISSING: nosuchfile.obj: {{[Nn]}}o such file or directory
4
5# RUN: lld-link --version | FileCheck -check-prefix=VERSION %s
6VERSION: {{LLD [0-9]+\.[0-9]+}}
deps/lld/test/COFF/duplicate.test created+12
...@@ -0,0 +1,12 @@
1RUN: llc -mtriple x86_64-windows-msvc -filetype obj -o alpha.obj %S/Inputs/alpha.ll
2RUN: llc -mtriple x86_64-windows-msvc -filetype obj -o beta.obj %S/Inputs/beta.ll
3RUN: lld-link /out:alpha.dll /dll alpha.obj /implib:alpha.lib
4RUN: not lld-link /out:beta.dll /dll alpha.obj beta.obj alpha.lib 2>&1 | FileCheck %s -check-prefix CHECK-ALPHA
5
6CHECK-ALPHA: error: duplicate symbol: f in {{.*}}alpha.obj and in alpha.dll
7
8RUN: llc -mtriple x86_64-windows-msvc -filetype obj -o gamma.obj %S/Inputs/gamma.ll
9RUN: not lld-link /out:gamma.exe /subsystem:console /entry:mainCRTStartup gamma.obj alpha.lib 2>&1 | FileCheck %s -check-prefix CHECK-GAMMA
10
11CHECK-GAMMA: error: duplicate symbol: __imp_f in {{.*}}gamma.obj and in alpha.dll
12
deps/lld/test/COFF/entry-drectve.test created+24
...@@ -0,0 +1,24 @@
1# RUN: yaml2obj < %s > %t.obj
2# RUN: lld-link /subsystem:console /out:%t.exe %t.obj
3
4--- !COFF
5header:
6 Machine: IMAGE_FILE_MACHINE_I386
7 Characteristics: []
8sections:
9 - Name: .text
10 Characteristics: [ IMAGE_SCN_CNT_CODE, IMAGE_SCN_MEM_EXECUTE, IMAGE_SCN_MEM_READ ]
11 Alignment: 4
12 SectionData: B800000000506800000000680000000050E80000000050E800000000
13 - Name: .drectve
14 Characteristics: [ IMAGE_SCN_LNK_INFO, IMAGE_SCN_LNK_REMOVE ]
15 Alignment: 1
16 SectionData: 2f656e7472793a437573746f6d456e74727900 # /entry:CustomEntry
17symbols:
18 - Name: _CustomEntry
19 Value: 0
20 SectionNumber: 1
21 SimpleType: IMAGE_SYM_TYPE_NULL
22 ComplexType: IMAGE_SYM_DTYPE_NULL
23 StorageClass: IMAGE_SYM_CLASS_EXTERNAL
24...
deps/lld/test/COFF/entry-inference.test+4-4
...@@ -14,10 +14,10 @@...@@ -14,10 +14,10 @@
14# RUN: not lld-link /out:%t.exe %t.obj > %t.log 2>&114# RUN: not lld-link /out:%t.exe %t.obj > %t.log 2>&1
15# RUN: FileCheck -check-prefix=WWINMAIN %s < %t.log15# RUN: FileCheck -check-prefix=WWINMAIN %s < %t.log
1616
17# MAIN: <root>: undefined symbol: mainCRTStartup17# MAIN: error: <root>: undefined symbol: mainCRTStartup
18# WMAIN: <root>: undefined symbol: wmainCRTStartup18# WMAIN: error: <root>: undefined symbol: wmainCRTStartup
19# WINMAIN: <root>: undefined symbol: WinMainCRTStartup19# WINMAIN: error: <root>: undefined symbol: WinMainCRTStartup
20# WWINMAIN: <root>: undefined symbol: wWinMainCRTStartup20# WWINMAIN: error: <root>: undefined symbol: wWinMainCRTStartup
2121
22--- !COFF22--- !COFF
23header:23header:
deps/lld/test/COFF/export-all.s created+86
...@@ -0,0 +1,86 @@
1# REQEUIRES: x86
2
3# RUN: llvm-mc -triple=i686-windows-gnu %s -filetype=obj -o %t.obj
4
5# RUN: lld-link -lldmingw -dll -out:%t.dll -entry:DllMainCRTStartup@12 %t.obj -implib:%t.lib
6# RUN: llvm-readobj -coff-exports %t.dll | FileCheck %s
7# RUN: llvm-readobj %t.lib | FileCheck -check-prefix=IMPLIB %s
8
9# CHECK-NOT: Name: DllMainCRTStartup
10# CHECK-NOT: Name: _imp__unexported
11# CHECK: Name: dataSym
12# CHECK: Name: foobar
13# CHECK-NOT: Name: unexported
14
15# IMPLIB: Symbol: __imp__dataSym
16# IMPLIB-NOT: Symbol: _dataSym
17# IMPLIB: Symbol: __imp__foobar
18# IMPLIB: Symbol: _foobar
19
20.global _foobar
21.global _DllMainCRTStartup@12
22.global _dataSym
23.global _unexported
24.global __imp__unexported
25.text
26_DllMainCRTStartup@12:
27 ret
28_foobar:
29 ret
30_unexported:
31 ret
32.data
33_dataSym:
34 .int 4
35__imp__unexported:
36 .int _unexported
37
38# Test specifying -export-all-symbols, on an object file that contains
39# dllexport directive for some of the symbols.
40
41# RUN: yaml2obj < %p/Inputs/export.yaml > %t.obj
42#
43# RUN: lld-link -out:%t.dll -dll %t.obj -lldmingw -export-all-symbols -output-def:%t.def
44# RUN: llvm-readobj -coff-exports %t.dll | FileCheck -check-prefix=CHECK2 %s
45# RUN: cat %t.def | FileCheck -check-prefix=CHECK2-DEF %s
46
47# Note, this will actually export _DllMainCRTStartup as well, since
48# it uses the standard spelling in this object file, not the MinGW one.
49
50# CHECK2: Name: exportfn1
51# CHECK2: Name: exportfn2
52# CHECK2: Name: exportfn3
53
54# CHECK2-DEF: EXPORTS
55# CHECK2-DEF: exportfn1 @3
56# CHECK2-DEF: exportfn2 @4
57# CHECK2-DEF: exportfn3 @5
58
59# Test ignoring certain object files and libs.
60
61# RUN: echo -e ".global foobar\n.global DllMainCRTStartup\n.text\nDllMainCRTStartup:\nret\nfoobar:\ncall mingwfunc\ncall crtfunc\nret\n" > %t.main.s
62# RUN: llvm-mc -triple=x86_64-windows-gnu %t.main.s -filetype=obj -o %t.main.obj
63# RUN: mkdir -p %T/libs
64# RUN: echo -e ".global mingwfunc\n.text\nmingwfunc:\nret\n" > %T/libs/mingwfunc.s
65# RUN: llvm-mc -triple=x86_64-windows-gnu %T/libs/mingwfunc.s -filetype=obj -o %T/libs/mingwfunc.o
66# RUN: llvm-ar rcs %T/libs/libmingwex.a %T/libs/mingwfunc.o
67# RUN: echo -e ".global crtfunc\n.text\ncrtfunc:\nret\n" > %T/libs/crtfunc.s
68# RUN: llvm-mc -triple=x86_64-windows-gnu %T/libs/crtfunc.s -filetype=obj -o %T/libs/crt2.o
69# RUN: lld-link -out:%t.dll -dll -entry:DllMainCRTStartup %t.main.obj -lldmingw %T/libs/crt2.o %T/libs/libmingwex.a -output-def:%t.def
70# RUN: echo "EOF" >> %t.def
71# RUN: cat %t.def | FileCheck -check-prefix=CHECK-EXCLUDE %s
72
73# CHECK-EXCLUDE: EXPORTS
74# CHECK-EXCLUDE-NEXT: foobar @1
75# CHECK-EXCLUDE-NEXT: EOF
76
77# Test that we handle import libraries together with -opt:noref.
78
79# RUN: yaml2obj < %p/Inputs/hello32.yaml > %t.obj
80# RUN: lld-link -lldmingw -dll -out:%t.dll -entry:main@0 %t.obj -implib:%t.lib -opt:noref %p/Inputs/std32.lib -output-def:%t.def
81# RUN: echo "EOF" >> %t.def
82# RUN: cat %t.def | FileCheck -check-prefix=CHECK-IMPLIB %s
83
84# CHECK-IMPLIB: EXPORTS
85# CHECK-IMPLIB-NEXT: main@0 @1
86# CHECK-IMPLIB-NEXT: EOF
deps/lld/test/COFF/export-arm64.yaml created+70
...@@ -0,0 +1,70 @@
1# REQUIRES: aarch64
2
3# RUN: yaml2obj < %s > %t.obj
4# RUN: lld-link /out:%t.dll /dll %t.obj /export:exportfn1 /export:exportfn2 /implib:%t.lib
5# RUN: llvm-objdump -p %t.dll | FileCheck %s
6# RUN: llvm-objdump -r %t.lib | FileCheck %s -check-prefix=RELOCS
7
8# CHECK: Export Table:
9# CHECK: DLL name: export-arm64.yaml.tmp.dll
10# CHECK: Ordinal RVA Name
11# CHECK-NEXT: 0 0
12# CHECK-NEXT: 1 0x1008 exportfn1
13# CHECK-NEXT: 2 0x1010 exportfn2
14# CHECK-NEXT: 3 0x1018 exportfn3
15
16# RELOCS: IMAGE_REL_ARM64_ADDR32NB .idata$6
17# RELOCS: IMAGE_REL_ARM64_ADDR32NB .idata$4
18# RELOCS: IMAGE_REL_ARM64_ADDR32NB .idata$5
19
20--- !COFF
21header:
22 Machine: IMAGE_FILE_MACHINE_ARM64
23 Characteristics: []
24sections:
25 - Name: .text
26 Characteristics: [ IMAGE_SCN_CNT_CODE, IMAGE_SCN_MEM_PURGEABLE, IMAGE_SCN_MEM_EXECUTE, IMAGE_SCN_MEM_READ ]
27 Alignment: 4
28 SectionData: e0031f2ac0035fd6e0031f2ac0035fd6e0031f2ac0035fd6e0031f2ac0035fd6
29 - Name: .drectve
30 Characteristics: [ IMAGE_SCN_LNK_INFO, IMAGE_SCN_LNK_REMOVE ]
31 Alignment: 1
32 SectionData: 2f6578706f72743a6578706f7274666e3300 # /export:exportfn3
33symbols:
34 - Name: .text
35 Value: 0
36 SectionNumber: 1
37 SimpleType: IMAGE_SYM_TYPE_NULL
38 ComplexType: IMAGE_SYM_DTYPE_NULL
39 StorageClass: IMAGE_SYM_CLASS_STATIC
40 SectionDefinition:
41 Length: 32
42 NumberOfRelocations: 0
43 NumberOfLinenumbers: 0
44 CheckSum: 0
45 Number: 1
46 - Name: _DllMainCRTStartup
47 Value: 0
48 SectionNumber: 1
49 SimpleType: IMAGE_SYM_TYPE_NULL
50 ComplexType: IMAGE_SYM_DTYPE_FUNCTION
51 StorageClass: IMAGE_SYM_CLASS_EXTERNAL
52 - Name: exportfn1
53 Value: 8
54 SectionNumber: 1
55 SimpleType: IMAGE_SYM_TYPE_NULL
56 ComplexType: IMAGE_SYM_DTYPE_FUNCTION
57 StorageClass: IMAGE_SYM_CLASS_EXTERNAL
58 - Name: exportfn2
59 Value: 16
60 SectionNumber: 1
61 SimpleType: IMAGE_SYM_TYPE_NULL
62 ComplexType: IMAGE_SYM_DTYPE_FUNCTION
63 StorageClass: IMAGE_SYM_CLASS_EXTERNAL
64 - Name: exportfn3
65 Value: 24
66 SectionNumber: 1
67 SimpleType: IMAGE_SYM_TYPE_NULL
68 ComplexType: IMAGE_SYM_DTYPE_FUNCTION
69 StorageClass: IMAGE_SYM_CLASS_EXTERNAL
70...
deps/lld/test/COFF/export-armnt.yaml created+95
...@@ -0,0 +1,95 @@
1# REQUIRES: arm
2
3# RUN: yaml2obj < %s > %t.obj
4#
5# RUN: lld-link /out:%t.dll /dll %t.obj /export:exportfn1 /export:exportfn2 /export:exportdata,data
6# RUN: llvm-objdump -p %t.dll | FileCheck %s
7
8# CHECK: Export Table:
9# CHECK: DLL name: export-armnt.yaml.tmp.dll
10# CHECK: Ordinal RVA Name
11# CHECK-NEXT: 0 0
12# CHECK-NEXT: 1 0x1000 exportdata
13# CHECK-NEXT: 2 0x2005 exportfn1
14# CHECK-NEXT: 3 0x2009 exportfn2
15# CHECK-NEXT: 4 0x2009 exportfn3
16
17--- !COFF
18header:
19 Machine: IMAGE_FILE_MACHINE_ARMNT
20 Characteristics: []
21sections:
22 - Name: .text
23 Characteristics: [ IMAGE_SCN_CNT_CODE, IMAGE_SCN_MEM_EXECUTE, IMAGE_SCN_MEM_READ ]
24 Alignment: 4
25 SectionData: 704700bf704700bf704700bf
26 - Name: .data
27 Characteristics: [ IMAGE_SCN_MEM_READ, IMAGE_SCN_MEM_WRITE ]
28 Alignment: 4
29 SectionData: 00000000
30 - Name: .drectve
31 Characteristics: [ IMAGE_SCN_LNK_INFO, IMAGE_SCN_LNK_REMOVE ]
32 Alignment: 1
33 SectionData: 2f6578706f72743a6578706f7274666e3300 # /export:exportfn3
34symbols:
35 - Name: .text
36 Value: 0
37 SectionNumber: 1
38 SimpleType: IMAGE_SYM_TYPE_NULL
39 ComplexType: IMAGE_SYM_DTYPE_NULL
40 StorageClass: IMAGE_SYM_CLASS_STATIC
41 SectionDefinition:
42 Length: 12
43 NumberOfRelocations: 0
44 NumberOfLinenumbers: 0
45 CheckSum: 0
46 Number: 0
47 - Name: .data
48 Value: 0
49 SectionNumber: 2
50 SimpleType: IMAGE_SYM_TYPE_NULL
51 ComplexType: IMAGE_SYM_DTYPE_NULL
52 StorageClass: IMAGE_SYM_CLASS_STATIC
53 SectionDefinition:
54 Length: 4
55 NumberOfRelocations: 0
56 NumberOfLinenumbers: 0
57 CheckSum: 0
58 Number: 0
59 - Name: _DllMainCRTStartup
60 Value: 0
61 SectionNumber: 1
62 SimpleType: IMAGE_SYM_TYPE_NULL
63 ComplexType: IMAGE_SYM_DTYPE_NULL
64 StorageClass: IMAGE_SYM_CLASS_EXTERNAL
65 - Name: exportfn1
66 Value: 4
67 SectionNumber: 1
68 SimpleType: IMAGE_SYM_TYPE_NULL
69 ComplexType: IMAGE_SYM_DTYPE_NULL
70 StorageClass: IMAGE_SYM_CLASS_EXTERNAL
71 - Name: exportfn2
72 Value: 8
73 SectionNumber: 1
74 SimpleType: IMAGE_SYM_TYPE_NULL
75 ComplexType: IMAGE_SYM_DTYPE_NULL
76 StorageClass: IMAGE_SYM_CLASS_EXTERNAL
77 - Name: exportfn3
78 Value: 8
79 SectionNumber: 1
80 SimpleType: IMAGE_SYM_TYPE_NULL
81 ComplexType: IMAGE_SYM_DTYPE_NULL
82 StorageClass: IMAGE_SYM_CLASS_EXTERNAL
83 - Name: exportdata
84 Value: 0
85 SectionNumber: 2
86 SimpleType: IMAGE_SYM_TYPE_NULL
87 ComplexType: IMAGE_SYM_DTYPE_NULL
88 StorageClass: IMAGE_SYM_CLASS_EXTERNAL
89 - Name: '?mangled@@YAHXZ'
90 Value: 8
91 SectionNumber: 1
92 SimpleType: IMAGE_SYM_TYPE_NULL
93 ComplexType: IMAGE_SYM_DTYPE_NULL
94 StorageClass: IMAGE_SYM_CLASS_EXTERNAL
95...
deps/lld/test/COFF/export32.test+5
...@@ -57,6 +57,11 @@...@@ -57,6 +57,11 @@
57# RUN: lld-link /out:%t.dll /dll %t.obj /def:%t.def57# RUN: lld-link /out:%t.dll /dll %t.obj /def:%t.def
58# RUN: llvm-objdump -p %t.dll | FileCheck -check-prefix=CHECK5 %s58# RUN: llvm-objdump -p %t.dll | FileCheck -check-prefix=CHECK5 %s
5959
60# RUN: echo "EXPORTS exportfn1 @ 3" > %t.def
61# RUN: echo "fn2=exportfn2 @ 2" >> %t.def
62# RUN: lld-link /out:%t.dll /dll %t.obj /def:%t.def
63# RUN: llvm-objdump -p %t.dll | FileCheck -check-prefix=CHECK5 %s
64
60# CHECK5: Export Table:65# CHECK5: Export Table:
61# CHECK5: DLL name: export32.test.tmp.dll66# CHECK5: DLL name: export32.test.tmp.dll
62# CHECK5: Ordinal RVA Name67# CHECK5: Ordinal RVA Name
deps/lld/test/COFF/filename-casing.s created+14
...@@ -0,0 +1,14 @@
1# REQUIRES: x86
2
3# RUN: llvm-mc -filetype=obj -triple=x86_64-windows-msvc -o %T/MixedCase.obj %s
4# RUN: not lld-link /entry:main %T/MixedCase.obj 2>&1 | FileCheck -check-prefix=OBJECT %s
5
6# RUN: llvm-lib /out:%T/MixedCase.lib %T/MixedCase.obj
7# RUN: not lld-link /machine:x64 /entry:main %T/MixedCase.lib 2>&1 | FileCheck -check-prefix=ARCHIVE %s
8
9# OBJECT: MixedCase.obj: undefined symbol: f
10# ARCHIVE: MixedCase.lib(MixedCase.obj): undefined symbol: f
11
12.globl main
13main:
14 callq f
deps/lld/test/COFF/force.test+4-3
...@@ -1,10 +1,11 @@...@@ -1,10 +1,11 @@
1# RUN: yaml2obj < %s > %t.obj1# RUN: yaml2obj < %s > %t.obj
2# RUN: not lld-link /out:%t.exe /entry:main %t.obj >& %t.log2# RUN: not lld-link /out:%t.exe /entry:main %t.obj >& %t.log
3# RUN: FileCheck %s < %t.log3# RUN: FileCheck -check-prefix=ERROR %s < %t.log
4# RUN: lld-link /out:%t.exe /entry:main %t.obj /force >& %t.log4# RUN: lld-link /out:%t.exe /entry:main %t.obj /force >& %t.log
5# RUN: FileCheck %s < %t.log5# RUN: FileCheck -check-prefix=WARN %s < %t.log
66
7# CHECK: .obj: undefined symbol: foo7# ERROR: error: {{.*}}.obj: undefined symbol: foo
8# WARN: warning: {{.*}}.obj: undefined symbol: foo
89
9--- !COFF10--- !COFF
10header:11header:
deps/lld/test/COFF/guardcf.test+6
...@@ -71,4 +71,10 @@ symbols:...@@ -71,4 +71,10 @@ symbols:
71 SimpleType: IMAGE_SYM_TYPE_NULL71 SimpleType: IMAGE_SYM_TYPE_NULL
72 ComplexType: IMAGE_SYM_DTYPE_NULL72 ComplexType: IMAGE_SYM_DTYPE_NULL
73 StorageClass: IMAGE_SYM_CLASS_EXTERNAL73 StorageClass: IMAGE_SYM_CLASS_EXTERNAL
74 - Name: __enclave_config
75 Value: 0
76 SectionNumber: 0
77 SimpleType: IMAGE_SYM_TYPE_NULL
78 ComplexType: IMAGE_SYM_DTYPE_NULL
79 StorageClass: IMAGE_SYM_CLASS_EXTERNAL
74...80...
deps/lld/test/COFF/hello32.test+3-3
...@@ -39,13 +39,13 @@ HEADER-NEXT: MajorImageVersion: 0...@@ -39,13 +39,13 @@ HEADER-NEXT: MajorImageVersion: 0
39HEADER-NEXT: MinorImageVersion: 039HEADER-NEXT: MinorImageVersion: 0
40HEADER-NEXT: MajorSubsystemVersion: 640HEADER-NEXT: MajorSubsystemVersion: 6
41HEADER-NEXT: MinorSubsystemVersion: 041HEADER-NEXT: MinorSubsystemVersion: 0
42HEADER-NEXT: SizeOfImage: 1689642HEADER-NEXT: SizeOfImage: 20480
43HEADER-NEXT: SizeOfHeaders: 51243HEADER-NEXT: SizeOfHeaders: 512
44HEADER-NEXT: Subsystem: IMAGE_SUBSYSTEM_WINDOWS_CUI (0x3)44HEADER-NEXT: Subsystem: IMAGE_SUBSYSTEM_WINDOWS_CUI (0x3)
45HEADER-NEXT: Characteristics [ (0x9940)45HEADER-NEXT: Characteristics [ (0x9540)
46HEADER-NEXT: IMAGE_DLL_CHARACTERISTICS_APPCONTAINER (0x1000)46HEADER-NEXT: IMAGE_DLL_CHARACTERISTICS_APPCONTAINER (0x1000)
47HEADER-NEXT: IMAGE_DLL_CHARACTERISTICS_DYNAMIC_BASE (0x40)47HEADER-NEXT: IMAGE_DLL_CHARACTERISTICS_DYNAMIC_BASE (0x40)
48HEADER-NEXT: IMAGE_DLL_CHARACTERISTICS_NO_BIND (0x800)48HEADER-NEXT: IMAGE_DLL_CHARACTERISTICS_NO_SEH (0x400)
49HEADER-NEXT: IMAGE_DLL_CHARACTERISTICS_NX_COMPAT (0x100)49HEADER-NEXT: IMAGE_DLL_CHARACTERISTICS_NX_COMPAT (0x100)
50HEADER-NEXT: IMAGE_DLL_CHARACTERISTICS_TERMINAL_SERVER_AWARE (0x8000)50HEADER-NEXT: IMAGE_DLL_CHARACTERISTICS_TERMINAL_SERVER_AWARE (0x8000)
51HEADER-NEXT: ]51HEADER-NEXT: ]
deps/lld/test/COFF/icf-associative.test+1-1
...@@ -1,5 +1,5 @@...@@ -1,5 +1,5 @@
1# RUN: yaml2obj < %s > %t.obj1# RUN: yaml2obj < %s > %t.obj
2# RUN: lld-link /entry:foo /out:%t.exe /subsystem:console /include:bar \2# RUN: lld-link /opt:icf /entry:foo /out:%t.exe /subsystem:console /include:bar \
3# RUN: /debug /verbose %t.obj > %t.log 2>&13# RUN: /debug /verbose %t.obj > %t.log 2>&1
4# RUN: FileCheck %s < %t.log4# RUN: FileCheck %s < %t.log
55
deps/lld/test/COFF/icf-executable.s created+18
...@@ -0,0 +1,18 @@
1# RUN: llvm-mc -triple=x86_64-windows-msvc %s -filetype=obj -o %t.obj
2# RUN: lld-link -entry:main %t.obj -out:%t.exe -verbose 2>&1 | FileCheck %s
3
4# CHECK: Selected internal
5# CHECK: Removed f2
6
7.section .text,"xr",one_only,internal
8internal:
9.globl main
10main:
11call f2
12ret
13
14.section .text,"xr",one_only,f2
15.globl f2
16f2:
17call main
18ret
deps/lld/test/COFF/icf-simple.test+26-1
...@@ -1,5 +1,5 @@...@@ -1,5 +1,5 @@
1# RUN: yaml2obj < %s > %t.obj1# RUN: yaml2obj < %s > %t.obj
2# RUN: lld-link /entry:foo /out:%t.exe /subsystem:console /include:bar \2# RUN: lld-link /opt:icf /entry:foo /out:%t.exe /subsystem:console /include:bar \
3# RUN: /verbose %t.obj > %t.log 2>&13# RUN: /verbose %t.obj > %t.log 2>&1
4# RUN: FileCheck -check-prefix=ICF %s < %t.log4# RUN: FileCheck -check-prefix=ICF %s < %t.log
55
...@@ -13,6 +13,31 @@...@@ -13,6 +13,31 @@
13# RUN: /verbose /opt:noref,noicf %t.obj > %t.log 2>&113# RUN: /verbose /opt:noref,noicf %t.obj > %t.log 2>&1
14# RUN: FileCheck -check-prefix=NOICF %s < %t.log14# RUN: FileCheck -check-prefix=NOICF %s < %t.log
1515
16# ICF is on by default (no /opt: flags).
17# RUN: lld-link /entry:foo /out:%t.exe /subsystem:console \
18# RUN: /include:bar /verbose %t.obj > %t.log 2>&1
19# RUN: FileCheck -check-prefix=ICF %s < %t.log
20
21# /debug disables ICF.
22# RUN: lld-link /debug /entry:foo /out:%t.exe /subsystem:console \
23# RUN: /include:bar /verbose %t.obj > %t.log 2>&1
24# RUN: FileCheck -check-prefix=NOICF %s < %t.log
25
26# /opt:noref disables ICF.
27# RUN: lld-link /opt:noref /entry:foo /out:%t.exe /subsystem:console \
28# RUN: /include:bar /verbose %t.obj > %t.log 2>&1
29# RUN: FileCheck -check-prefix=NOICF %s < %t.log
30
31# /debug /opt:ref enables ICF.
32# RUN: lld-link /debug /opt:ref /entry:foo /out:%t.exe /subsystem:console \
33# RUN: /include:bar /verbose %t.obj > %t.log 2>&1
34# RUN: FileCheck -check-prefix=ICF %s < %t.log
35
36# /debug /opt:noicf,ref disables ICF.
37# RUN: lld-link /debug /opt:noicf,ref /entry:foo /out:%t.exe /subsystem:console \
38# RUN: /include:bar /verbose %t.obj > %t.log 2>&1
39# RUN: FileCheck -check-prefix=NOICF %s < %t.log
40
16# NOICF-NOT: Removed foo41# NOICF-NOT: Removed foo
17# NOICF-NOT: Removed bar42# NOICF-NOT: Removed bar
1843
deps/lld/test/COFF/icf-xdata.s created+86
...@@ -0,0 +1,86 @@
1# RUN: llvm-mc %s -triple x86_64-windows-msvc -filetype=obj -o %t.obj
2# RUN: lld-link %t.obj -dll -noentry -out:%t.dll
3# RUN: llvm-readobj -sections %t.dll | FileCheck %s
4
5# There shouldn't be much xdata, because all three .pdata entries (12 bytes
6# each) should use the same .xdata unwind info.
7# CHECK: Name: .pdata
8# CHECK-NEXT: VirtualSize: 0x24
9# CHECK: Name: .xdata
10# CHECK-NEXT: VirtualSize: 0x8
11
12 .text
13callee:
14 ret
15
16 .def xdata1;
17 .scl 2;
18 .type 32;
19 .endef
20 .section .text,"xr",one_only,xdata1
21 .globl xdata1 # -- Begin function xdata1
22 .p2align 4, 0x90
23xdata1: # @xdata1
24.seh_proc xdata1
25# BB#0: # %entry
26 subq $40, %rsp
27 .seh_stackalloc 40
28 .seh_endprologue
29 callq callee
30 nop
31 addq $40, %rsp
32 jmp callee # TAILCALL
33 .seh_handlerdata
34 .section .text,"xr",one_only,xdata1
35 .seh_endproc
36 # -- End function
37 .def xdata2;
38 .scl 2;
39 .type 32;
40 .endef
41 .section .text,"xr",one_only,xdata2
42 .globl xdata2 # -- Begin function xdata2
43 .p2align 4, 0x90
44xdata2: # @xdata2
45.seh_proc xdata2
46# BB#0: # %entry
47 subq $40, %rsp
48 .seh_stackalloc 40
49 .seh_endprologue
50 callq callee
51 callq callee
52 nop
53 addq $40, %rsp
54 jmp callee # TAILCALL
55 .seh_handlerdata
56 .section .text,"xr",one_only,xdata2
57 .seh_endproc
58 # -- End function
59 .def xdata3;
60 .scl 2;
61 .type 32;
62 .endef
63 .section .text,"xr",one_only,xdata3
64 .globl xdata3 # -- Begin function xdata3
65 .p2align 4, 0x90
66xdata3: # @xdata3
67.seh_proc xdata3
68# BB#0: # %entry
69 subq $40, %rsp
70 .seh_stackalloc 40
71 .seh_endprologue
72 callq callee
73 callq callee
74 callq callee
75 nop
76 addq $40, %rsp
77 jmp callee # TAILCALL
78 .seh_handlerdata
79 .section .text,"xr",one_only,xdata3
80 .seh_endproc
81 # -- End function
82 .section .drectve,"yn"
83 .ascii " -export:xdata1"
84 .ascii " -export:xdata2"
85 .ascii " -export:xdata3"
86
deps/lld/test/COFF/ignore4217.yaml created+72
...@@ -0,0 +1,72 @@
1# Tests that /ignore:4217 suppresses "locally defined symbol imported" warnings.
2# RUN: yaml2obj < %s > %t.obj
3
4# RUN: lld-link -entry:main -out:%t.exe %t.obj 2>&1 \
5# RUN: | FileCheck -check-prefix=WARNINGS %s
6# RUN: lld-link -ignore:4217 -entry:main -out:%t.exe %t.obj 2>&1 \
7# RUN: | FileCheck -allow-empty -check-prefix=SUPPRESSED %s
8
9# WARNINGS: locally defined symbol imported
10# SUPPRESSED-NOT: locally defined symbol imported
11
12--- !COFF
13header:
14 Machine: IMAGE_FILE_MACHINE_AMD64
15 Characteristics: [ ]
16sections:
17 - Name: .text
18 Characteristics: [ IMAGE_SCN_CNT_CODE, IMAGE_SCN_MEM_EXECUTE, IMAGE_SCN_MEM_READ ]
19 Alignment: 16
20 SectionData: B82A000000C3662E0F1F8400000000004883EC28C744242400000000E800000000904883C428C3
21 Relocations:
22 - VirtualAddress: 29
23 SymbolName: __imp_foo
24 Type: IMAGE_REL_AMD64_REL32
25 - Name: .data
26 Characteristics: [ IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_READ, IMAGE_SCN_MEM_WRITE ]
27 Alignment: 4
28 SectionData: ''
29symbols:
30 - Name: .text
31 Value: 0
32 SectionNumber: 1
33 SimpleType: IMAGE_SYM_TYPE_NULL
34 ComplexType: IMAGE_SYM_DTYPE_NULL
35 StorageClass: IMAGE_SYM_CLASS_STATIC
36 SectionDefinition:
37 Length: 39
38 NumberOfRelocations: 1
39 NumberOfLinenumbers: 0
40 CheckSum: 3087210877
41 Number: 1
42 - Name: .data
43 Value: 0
44 SectionNumber: 2
45 SimpleType: IMAGE_SYM_TYPE_NULL
46 ComplexType: IMAGE_SYM_DTYPE_NULL
47 StorageClass: IMAGE_SYM_CLASS_STATIC
48 SectionDefinition:
49 Length: 0
50 NumberOfRelocations: 0
51 NumberOfLinenumbers: 0
52 CheckSum: 0
53 Number: 2
54 - Name: foo
55 Value: 0
56 SectionNumber: 1
57 SimpleType: IMAGE_SYM_TYPE_NULL
58 ComplexType: IMAGE_SYM_DTYPE_FUNCTION
59 StorageClass: IMAGE_SYM_CLASS_EXTERNAL
60 - Name: main
61 Value: 16
62 SectionNumber: 1
63 SimpleType: IMAGE_SYM_TYPE_NULL
64 ComplexType: IMAGE_SYM_DTYPE_FUNCTION
65 StorageClass: IMAGE_SYM_CLASS_EXTERNAL
66 - Name: __imp_foo
67 Value: 0
68 SectionNumber: 0
69 SimpleType: IMAGE_SYM_TYPE_NULL
70 ComplexType: IMAGE_SYM_DTYPE_NULL
71 StorageClass: IMAGE_SYM_CLASS_EXTERNAL
72...
deps/lld/test/COFF/include.test+13
...@@ -62,6 +62,19 @@ symbols:...@@ -62,6 +62,19 @@ symbols:
62 CheckSum: 062 CheckSum: 0
63 Number: 063 Number: 0
64 Selection: IMAGE_COMDAT_SELECT_ANY64 Selection: IMAGE_COMDAT_SELECT_ANY
65 - Name: '.text$mn'
66 Value: 0
67 SectionNumber: 3
68 SimpleType: IMAGE_SYM_TYPE_NULL
69 ComplexType: IMAGE_SYM_DTYPE_NULL
70 StorageClass: IMAGE_SYM_CLASS_STATIC
71 SectionDefinition:
72 Length: 6
73 NumberOfRelocations: 0
74 NumberOfLinenumbers: 0
75 CheckSum: 0
76 Number: 0
77 Selection: IMAGE_COMDAT_SELECT_ANY
65 - Name: main78 - Name: main
66 Value: 079 Value: 0
67 SectionNumber: 180 SectionNumber: 1
deps/lld/test/COFF/libpath.test+10-2
...@@ -5,14 +5,22 @@...@@ -5,14 +5,22 @@
55
6# RUN: env LIB=%t/a lld-link /out:%t.exe /entry:main /verbose \6# RUN: env LIB=%t/a lld-link /out:%t.exe /entry:main /verbose \
7# RUN: std64.lib /subsystem:console %p/Inputs/hello64.obj \7# RUN: std64.lib /subsystem:console %p/Inputs/hello64.obj \
8# RUN: /libpath:%t/b /libpath:%t/c > %t.log8# RUN: /libpath:%t/b /libpath:%t/c 2> %t.log
9# RUN: FileCheck -check-prefix=CHECK1 %s < %t.log9# RUN: FileCheck -check-prefix=CHECK1 %s < %t.log
1010
11CHECK1: b{{[/\\]}}std64.lib11CHECK1: b{{[/\\]}}std64.lib
1212
13# RUN: lld-link /out:%t.exe /entry:main /verbose \13# RUN: lld-link /out:%t.exe /entry:main /verbose \
14# RUN: std64.lib /subsystem:console %p/Inputs/hello64.obj \14# RUN: std64.lib /subsystem:console %p/Inputs/hello64.obj \
15# RUN: /libpath:%t/a /libpath:%t/b /libpath:%t/c > %t.log15# RUN: /libpath:%t/a /libpath:%t/b /libpath:%t/c 2> %t.log
16# RUN: FileCheck -check-prefix=CHECK2 %s < %t.log16# RUN: FileCheck -check-prefix=CHECK2 %s < %t.log
1717
18CHECK2: a{{[/\\]}}std64.lib18CHECK2: a{{[/\\]}}std64.lib
19
20# RUN: lld-link /out:%t.exe /entry:main /verbose \
21# RUN: %t/a/std64.lib /subsystem:console %p/Inputs/hello64.obj \
22# RUN: /libpath:%t/b /verbose > %t.log 2>&1
23# RUN: FileCheck -check-prefix=CHECK3 %s < %t.log
24
25CHECK3: Reading {{.*}}a/std64.lib
26CHECK3-NOT: Reading {{.*}}b/std64.lib
deps/lld/test/COFF/linkrepro-manifest.test created+12
...@@ -0,0 +1,12 @@
1REQUIRES: x86, gnutar, manifest_tool
2
3RUN: rm -rf %t && mkdir %t && cd %t
4RUN: lld-link -entry:__ImageBase -nodefaultlib -linkrepro:%t -manifest:embed %p/Inputs/std32.lib -subsystem:console
5RUN: tar tf repro.tar | FileCheck --check-prefix=LIST %s
6RUN: tar xOf repro.tar repro/response.txt | FileCheck %s
7
8LIST: manifest.res
9
10CHECK-NOT: -manifest:
11CHECK: .manifest.res
12CHECK-NOT: -manifest:
deps/lld/test/COFF/linkrepro-pdb.test created+9
...@@ -0,0 +1,9 @@
1REQUIRES: x86, gnutar
2
3RUN: rm -rf %t && mkdir -p %t && cd %t
4RUN: yaml2obj %S/Inputs/pdb-type-server-simple-a.yaml -o a.obj
5RUN: yaml2obj %S/Inputs/pdb-type-server-simple-b.yaml -o b.obj
6RUN: llvm-pdbutil yaml2pdb %S/Inputs/pdb-type-server-simple-ts.yaml -pdb ts.pdb
7RUN: lld-link a.obj b.obj -entry:main -debug -out:t.exe -pdb:t.pdb -nodefaultlib -linkrepro:.
8RUN: tar xOf repro.tar repro/%:t/ts.pdb > repro-ts.pdb
9RUN: diff ts.pdb repro-ts.pdb
deps/lld/test/COFF/linkrepro-res.test created+12
...@@ -0,0 +1,12 @@
1# REQUIRES: x86, shell
2
3# RUN: rm -rf %t.dir
4# RUN: mkdir -p %t.dir/build
5# RUN: cd %t.dir/build
6# RUN: lld-link %p/Inputs/resource.res /subsystem:console /machine:x64 \
7# RUN: /entry:__ImageBase /linkrepro:. /out:%t.exe
8# RUN: tar xf repro.tar
9# RUN: diff %p/Inputs/resource.res repro/%:p/Inputs/resource.res
10# RUN: FileCheck %s --check-prefix=RSP < repro/response.txt
11
12# RSP: resource.res
deps/lld/test/COFF/loadcfg.test+2-19
...@@ -14,10 +14,6 @@ sections:...@@ -14,10 +14,6 @@ sections:
14 Characteristics: [ IMAGE_SCN_CNT_CODE, IMAGE_SCN_MEM_EXECUTE, IMAGE_SCN_MEM_READ ]14 Characteristics: [ IMAGE_SCN_CNT_CODE, IMAGE_SCN_MEM_EXECUTE, IMAGE_SCN_MEM_READ ]
15 Alignment: 415 Alignment: 4
16 SectionData: B82A000000C316 SectionData: B82A000000C3
17 - Name: .text
18 Characteristics: [ IMAGE_SCN_CNT_CODE, IMAGE_SCN_LNK_COMDAT, IMAGE_SCN_MEM_EXECUTE, IMAGE_SCN_MEM_READ ]
19 Alignment: 4
20 SectionData: B82A000000C3
21 - Name: .rdata17 - Name: .rdata
22 Characteristics: [ IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_READ ]18 Characteristics: [ IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_READ ]
23 Alignment: 1619 Alignment: 16
...@@ -35,19 +31,6 @@ symbols:...@@ -35,19 +31,6 @@ symbols:
35 NumberOfLinenumbers: 031 NumberOfLinenumbers: 0
36 CheckSum: 032 CheckSum: 0
37 Number: 033 Number: 0
38 - Name: .text
39 Value: 0
40 SectionNumber: 2
41 SimpleType: IMAGE_SYM_TYPE_NULL
42 ComplexType: IMAGE_SYM_DTYPE_NULL
43 StorageClass: IMAGE_SYM_CLASS_STATIC
44 SectionDefinition:
45 Length: 6
46 NumberOfRelocations: 0
47 NumberOfLinenumbers: 0
48 CheckSum: 0
49 Number: 0
50 Selection: IMAGE_COMDAT_SELECT_ANY
51 - Name: main34 - Name: main
52 Value: 035 Value: 0
53 SectionNumber: 136 SectionNumber: 1
...@@ -56,7 +39,7 @@ symbols:...@@ -56,7 +39,7 @@ symbols:
56 StorageClass: IMAGE_SYM_CLASS_EXTERNAL39 StorageClass: IMAGE_SYM_CLASS_EXTERNAL
57 - Name: .rdata40 - Name: .rdata
58 Value: 041 Value: 0
59 SectionNumber: 342 SectionNumber: 2
60 SimpleType: IMAGE_SYM_TYPE_NULL43 SimpleType: IMAGE_SYM_TYPE_NULL
61 ComplexType: IMAGE_SYM_DTYPE_NULL44 ComplexType: IMAGE_SYM_DTYPE_NULL
62 StorageClass: IMAGE_SYM_CLASS_STATIC45 StorageClass: IMAGE_SYM_CLASS_STATIC
...@@ -68,7 +51,7 @@ symbols:...@@ -68,7 +51,7 @@ symbols:
68 Number: 351 Number: 3
69 - Name: _load_config_used52 - Name: _load_config_used
70 Value: 053 Value: 0
71 SectionNumber: 354 SectionNumber: 2
72 SimpleType: IMAGE_SYM_TYPE_NULL55 SimpleType: IMAGE_SYM_TYPE_NULL
73 ComplexType: IMAGE_SYM_DTYPE_NULL56 ComplexType: IMAGE_SYM_DTYPE_NULL
74 StorageClass: IMAGE_SYM_CLASS_EXTERNAL57 StorageClass: IMAGE_SYM_CLASS_EXTERNAL
deps/lld/test/COFF/locally-imported-arm64.test created+61
...@@ -0,0 +1,61 @@
1# RUN: yaml2obj < %s > %t.obj
2# RUN: lld-link /out:%t.exe /entry:main %t.obj
3# RUN: llvm-objdump -s %t.exe | FileCheck %s
4# RUN: llvm-readobj -coff-basereloc %t.exe | FileCheck -check-prefix=BASEREL %s
5
6# CHECK: Contents of section .text:
7# CHECK-NEXT: 1000 00200000
8# CHECK: Contents of section .rdata:
9# CHECK-NEXT: 2000 04100040 01000000
10
11# BASEREL: BaseReloc [
12# BASEREL-NEXT: Entry {
13# BASEREL-NEXT: Type: DIR64
14# BASEREL-NEXT: Address: 0x2000
15# BASEREL-NEXT: }
16# BASEREL-NEXT: Entry {
17# BASEREL-NEXT: Type: ABSOLUTE
18# BASEREL-NEXT: Address: 0x2000
19# BASEREL-NEXT: }
20# BASEREL-NEXT: ]
21
22--- !COFF
23header:
24 Machine: IMAGE_FILE_MACHINE_ARM64
25 Characteristics: []
26sections:
27 - Name: .text
28 Characteristics: [ IMAGE_SCN_CNT_CODE, IMAGE_SCN_MEM_EXECUTE, IMAGE_SCN_MEM_READ ]
29 Alignment: 4
30 SectionData: 00000000
31 Relocations:
32 - VirtualAddress: 0
33 SymbolName: __imp_main
34 Type: IMAGE_REL_ARM64_ADDR32NB
35symbols:
36 - Name: .text
37 Value: 0
38 SectionNumber: 1
39 SimpleType: IMAGE_SYM_TYPE_NULL
40 ComplexType: IMAGE_SYM_DTYPE_NULL
41 StorageClass: IMAGE_SYM_CLASS_STATIC
42 SectionDefinition:
43 Length: 4
44 NumberOfRelocations: 1
45 NumberOfLinenumbers: 0
46 CheckSum: 0
47 Number: 0
48 Selection: IMAGE_COMDAT_SELECT_ANY
49 - Name: main
50 Value: 4
51 SectionNumber: 1
52 SimpleType: IMAGE_SYM_TYPE_NULL
53 ComplexType: IMAGE_SYM_DTYPE_FUNCTION
54 StorageClass: IMAGE_SYM_CLASS_EXTERNAL
55 - Name: __imp_main
56 Value: 0
57 SectionNumber: 0
58 SimpleType: IMAGE_SYM_TYPE_NULL
59 ComplexType: IMAGE_SYM_DTYPE_FUNCTION
60 StorageClass: IMAGE_SYM_CLASS_EXTERNAL
61...
deps/lld/test/COFF/locally-imported-warn-multiple.s created+14
...@@ -0,0 +1,14 @@
1# REQUIRES: x86
2
3# RUN: llvm-mc -filetype=obj -triple=x86_64-windows-msvc -o %T/locally-imported-def.obj %S/Inputs/locally-imported-def.s
4# RUN: llvm-mc -filetype=obj -triple=x86_64-windows-msvc -o %T/locally-imported-imp1.obj %S/Inputs/locally-imported-imp.s
5# RUN: llvm-mc -filetype=obj -triple=x86_64-windows-msvc -o %T/locally-imported-imp2.obj %S/Inputs/locally-imported-imp.s
6# RUN: llvm-mc -filetype=obj -triple=x86_64-windows-msvc -o %t.obj %s
7# RUN: lld-link /entry:main %T/locally-imported-def.obj %T/locally-imported-imp1.obj %T/locally-imported-imp2.obj %t.obj 2>&1 | FileCheck %s
8
9# CHECK: warning: [[TESTDIR:.+]]locally-imported-imp1.obj: locally defined symbol imported: f (defined in [[TESTDIR]]locally-imported-def.obj)
10# CHECK-NEXT: warning: [[TESTDIR:.+]]locally-imported-imp2.obj: locally defined symbol imported: f (defined in [[TESTDIR]]locally-imported-def.obj)
11
12.globl main
13main:
14 ret
deps/lld/test/COFF/locally-imported.test+3-1
...@@ -1,8 +1,10 @@...@@ -1,8 +1,10 @@
1# RUN: yaml2obj < %s > %t.obj1# RUN: yaml2obj < %s > %t.obj
2# RUN: lld-link /out:%t.exe /entry:main %t.obj2# RUN: lld-link /out:%t.exe /entry:main %t.obj 2>&1 | FileCheck -check-prefix=WARN %s
3# RUN: llvm-objdump -s %t.exe | FileCheck %s3# RUN: llvm-objdump -s %t.exe | FileCheck %s
4# RUN: llvm-readobj -coff-basereloc %t.exe | FileCheck -check-prefix=BASEREL %s4# RUN: llvm-readobj -coff-basereloc %t.exe | FileCheck -check-prefix=BASEREL %s
55
6# WARN: warning: [[INPUT:.+]]: locally defined symbol imported: main (defined in [[INPUT]])
7
6# CHECK: Contents of section .text:8# CHECK: Contents of section .text:
7# CHECK-NEXT: 1000 002000009# CHECK-NEXT: 1000 00200000
8# CHECK: Contents of section .rdata:10# CHECK: Contents of section .rdata:
deps/lld/test/COFF/long-section-name.test+21-2
...@@ -1,7 +1,10 @@...@@ -1,7 +1,10 @@
1# RUN: yaml2obj < %s > %t.obj1# RUN: yaml2obj < %s > %t.obj
2# RUN: lld-link /debug /out:%t.exe /entry:main %t.obj2# RUN: lld-link /out:%t.exe /entry:main %t.obj
3# RUN: llvm-readobj -sections %t.exe | FileCheck %s3# RUN: llvm-readobj -sections %t.exe | FileCheck %s
4# RUN: lld-link /debug /out:%t2.exe /entry:main %t.obj
5# RUN: llvm-readobj -sections %t2.exe | FileCheck %s
46
7# CHECK: Name: .eh_fram (
5# CHECK: Name: .data_long_section_name8# CHECK: Name: .data_long_section_name
6# CHECK: Name: .text_long_section_name9# CHECK: Name: .text_long_section_name
710
...@@ -11,10 +14,14 @@ header:...@@ -11,10 +14,14 @@ header:
11 Characteristics: [ ]14 Characteristics: [ ]
12sections:15sections:
13 - Name: .text_long_section_name16 - Name: .text_long_section_name
14 Characteristics: [ IMAGE_SCN_CNT_CODE, IMAGE_SCN_MEM_EXECUTE, IMAGE_SCN_MEM_READ ]17 Characteristics: [ IMAGE_SCN_CNT_CODE, IMAGE_SCN_MEM_EXECUTE, IMAGE_SCN_MEM_READ, IMAGE_SCN_MEM_DISCARDABLE ]
15 Alignment: 418 Alignment: 4
16 SectionData: B82A000000C319 SectionData: B82A000000C3
17 - Name: .data_long_section_name20 - Name: .data_long_section_name
21 Characteristics: [ IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_READ, IMAGE_SCN_MEM_WRITE, IMAGE_SCN_MEM_DISCARDABLE ]
22 Alignment: 4
23 SectionData: "00"
24 - Name: .eh_frame
18 Characteristics: [ IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_READ, IMAGE_SCN_MEM_WRITE ]25 Characteristics: [ IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_READ, IMAGE_SCN_MEM_WRITE ]
19 Alignment: 426 Alignment: 4
20 SectionData: "00"27 SectionData: "00"
...@@ -49,6 +56,18 @@ symbols:...@@ -49,6 +56,18 @@ symbols:
49 NumberOfLinenumbers: 056 NumberOfLinenumbers: 0
50 CheckSum: 057 CheckSum: 0
51 Number: 058 Number: 0
59 - Name: .eh_frame
60 Value: 0
61 SectionNumber: 3
62 SimpleType: IMAGE_SYM_TYPE_NULL
63 ComplexType: IMAGE_SYM_DTYPE_NULL
64 StorageClass: IMAGE_SYM_CLASS_STATIC
65 SectionDefinition:
66 Length: 0
67 NumberOfRelocations: 0
68 NumberOfLinenumbers: 0
69 CheckSum: 0
70 Number: 0
52 - Name: main71 - Name: main
53 Value: 072 Value: 0
54 SectionNumber: 173 SectionNumber: 1
deps/lld/test/COFF/lto-cache.ll created+21
...@@ -0,0 +1,21 @@
1; REQUIRES: x86
2
3; RUN: opt -module-hash -module-summary %s -o %t.o
4; RUN: opt -module-hash -module-summary %p/Inputs/lto-cache.ll -o %t2.o
5
6; RUN: rm -Rf %t.cache && mkdir %t.cache
7; Create two files that would be removed by cache pruning due to age.
8; We should only remove files matching the pattern "llvmcache-*".
9; RUN: touch -t 197001011200 %t.cache/llvmcache-foo %t.cache/foo
10; RUN: lld-link /lldltocache:%t.cache /lldltocachepolicy:prune_after=1h /out:%t3 /entry:main %t2.o %t.o
11
12; Two cached objects, plus a timestamp file and "foo", minus the file we removed.
13; RUN: ls %t.cache | count 4
14
15target datalayout = "e-m:w-i64:64-f80:128-n8:16:32:64-S128"
16target triple = "x86_64-pc-windows-msvc"
17
18define void @globalfunc() #0 {
19entry:
20 ret void
21}
deps/lld/test/COFF/lto-opt-level.ll+6-6
...@@ -1,10 +1,10 @@...@@ -1,10 +1,10 @@
1; RUN: llvm-as -o %t.obj %s1; RUN: llvm-as -o %t.obj %s
2; RUN: lld-link /out:%t0.exe /entry:main /subsystem:console /opt:lldlto=0 /debug %t.obj2; RUN: lld-link /out:%t0.exe /entry:main /subsystem:console /opt:lldlto=0 /lldmap:%t0.map %t.obj
3; RUN: llvm-nm %t0.exe | FileCheck --check-prefix=CHECK-O0 %s3; RUN: FileCheck --check-prefix=CHECK-O0 %s < %t0.map
4; RUN: lld-link /out:%t2.exe /entry:main /subsystem:console /opt:lldlto=2 /debug %t.obj4; RUN: lld-link /out:%t2.exe /entry:main /subsystem:console /opt:lldlto=2 /lldmap:%t2.map %t.obj
5; RUN: llvm-nm %t2.exe | FileCheck --check-prefix=CHECK-O2 %s5; RUN: FileCheck --check-prefix=CHECK-O2 %s < %t2.map
6; RUN: lld-link /out:%t2a.exe /entry:main /subsystem:console /debug %t.obj6; RUN: lld-link /out:%t2a.exe /entry:main /subsystem:console /lldmap:%t2a.map %t.obj
7; RUN: llvm-nm %t2a.exe | FileCheck --check-prefix=CHECK-O2 %s7; RUN: FileCheck --check-prefix=CHECK-O2 %s < %t2a.map
88
9target datalayout = "e-m:w-i64:64-f80:128-n8:16:32:64-S128"9target datalayout = "e-m:w-i64:64-f80:128-n8:16:32:64-S128"
10target triple = "x86_64-pc-windows-msvc"10target triple = "x86_64-pc-windows-msvc"
deps/lld/test/COFF/lto-reloc-model.ll created+19
...@@ -0,0 +1,19 @@
1; RUN: llvm-as -o %t %s
2; RUN: lld-link /entry:main /subsystem:console /out:%t.exe %t
3; RUN: llvm-objdump -d %t.exe | FileCheck %s
4
5target datalayout = "e-m:x-p:32:32-i64:64-f80:32-n8:16:32-a:0:32-S32"
6target triple = "i686-pc-windows-msvc"
7
8@foo = thread_local global i8 0
9
10module asm "__tls_index = 1"
11module asm "__tls_array = 2"
12
13define i8* @main() {
14 ; CHECK: movl 1, %eax
15 ; CHECK: movl %fs:2, %ecx
16 ; CHECK: movl (%ecx,%eax,4), %eax
17 ; CHECK: leal (%eax), %eax
18 ret i8* @foo
19}
deps/lld/test/COFF/lto.ll+15-1
...@@ -82,7 +82,21 @@...@@ -82,7 +82,21 @@
82; TEXT-10: Disassembly of section .text:82; TEXT-10: Disassembly of section .text:
83; TEXT-10-NEXT: .text:83; TEXT-10-NEXT: .text:
84; TEXT-10-NEXT: retq84; TEXT-10-NEXT: retq
85; TEXT-10-NEXT: nopw %cs:(%rax,%rax)85; TEXT-10-NEXT: nop
86; TEXT-10-NEXT: nop
87; TEXT-10-NEXT: nop
88; TEXT-10-NEXT: nop
89; TEXT-10-NEXT: nop
90; TEXT-10-NEXT: nop
91; TEXT-10-NEXT: nop
92; TEXT-10-NEXT: nop
93; TEXT-10-NEXT: nop
94; TEXT-10-NEXT: nop
95; TEXT-10-NEXT: nop
96; TEXT-10-NEXT: nop
97; TEXT-10-NEXT: nop
98; TEXT-10-NEXT: nop
99; TEXT-10-NEXT: nop
86; TEXT-10-NEXT: retq100; TEXT-10-NEXT: retq
87; TEXT-10-NEXT: int3101; TEXT-10-NEXT: int3
88; TEXT-10-NEXT: int3102; TEXT-10-NEXT: int3
deps/lld/test/COFF/manifest.test+15-1
...@@ -57,10 +57,24 @@ DEPENDENCY: </dependentAssembly>...@@ -57,10 +57,24 @@ DEPENDENCY: </dependentAssembly>
57DEPENDENCY: </dependency>57DEPENDENCY: </dependency>
58DEPENDENCY: </assembly>58DEPENDENCY: </assembly>
5959
60# RUN: lld-link /manifest /out:%t.exe /entry:main /manifestuac:no %t.obj60# RUN: lld-link /manifest /out:%t.exe /entry:main /manifestuac:no \
61# RUN: /manifestdependency:"foo='bar'" %t.obj
61# RUN: FileCheck -check-prefix=NOUAC %s < %t.exe.manifest62# RUN: FileCheck -check-prefix=NOUAC %s < %t.exe.manifest
6263
63NOUAC: <?xml version="1.0" standalone="yes"?>64NOUAC: <?xml version="1.0" standalone="yes"?>
64NOUAC: <assembly xmlns="urn:schemas-microsoft-com:asm.v1"65NOUAC: <assembly xmlns="urn:schemas-microsoft-com:asm.v1"
65NOUAC: manifestVersion="1.0">66NOUAC: manifestVersion="1.0">
67NOUAC: <dependency>
68NOUAC: <dependentAssembly>
69NOUAC: <assemblyIdentity foo='bar' />
70NOUAC: </dependentAssembly>
71NOUAC: </dependency>
66NOUAC: </assembly>72NOUAC: </assembly>
73
74# RUN: lld-link /manifest /out:%t.exe /entry:main /manifestuac:no %t.obj
75# RUN: FileCheck -check-prefix=NOUACNODEP %s < %t.exe.manifest
76
77NOUACNODEP: <?xml version="1.0" standalone="yes"?>
78NOUACNODEP: <assembly xmlns="urn:schemas-microsoft-com:asm.v1"
79NOUACNODEP: manifestVersion="1.0">
80NOUACNODEP: </assembly>
deps/lld/test/COFF/manifestinput-error.test created+10
...@@ -0,0 +1,10 @@
1# UNSUPPORTED: manifest_tool
2# UNSUPPORTED: libxml2
3
4# RUN: yaml2obj %p/Inputs/ret42.yaml > %t.obj
5# RUN: not lld-link /out:%t.exe /entry:main \
6# RUN: /manifest:embed \
7# RUN: /manifestuac:"level='requireAdministrator'" \
8# RUN: /manifestinput:%p/Inputs/manifestinput.test %t.obj 2>&1 | FileCheck %s
9
10# CHECK: error: unable to find mt.exe in PATH: No such file or directory
deps/lld/test/COFF/manifestinput-nowarning.test created+11
...@@ -0,0 +1,11 @@
1# UNSUPPORTED: libxml2
2# REQUIRES: manifest_tool
3
4# RUN: yaml2obj %p/Inputs/ret42.yaml > %t.obj
5# RUN: lld-link /out:%t.exe /entry:main \
6# RUN: /manifest:embed \
7# RUN: /manifestuac:"level='requireAdministrator'" \
8# RUN: /manifestinput:%p/Inputs/manifestinput.test %t.obj | \
9# RUN: FileCheck -allow-empty %s
10
11# CHECK-NOT: warning: error with internal manifest tool: no libxml2
deps/lld/test/COFF/manifestinput.test+2-2
...@@ -1,4 +1,4 @@...@@ -1,4 +1,4 @@
1# REQUIRES: win_mt1# REQUIRES: manifest_tool
22
3# RUN: yaml2obj %p/Inputs/ret42.yaml > %t.obj3# RUN: yaml2obj %p/Inputs/ret42.yaml > %t.obj
4# RUN: lld-link /out:%t.exe /entry:main \4# RUN: lld-link /out:%t.exe /entry:main \
...@@ -11,7 +11,7 @@...@@ -11,7 +11,7 @@
11TEST_EMBED: ResourceTableRVA: 0x100011TEST_EMBED: ResourceTableRVA: 0x1000
12TEST_EMBED-NEXT: ResourceTableSize: 0x29812TEST_EMBED-NEXT: ResourceTableSize: 0x298
13TEST_EMBED-DAG: Resources [13TEST_EMBED-DAG: Resources [
14TEST_EMBED-NEXT: Total Number of Resources: 1 14TEST_EMBED-NEXT: Total Number of Resources: 1
15TEST_EMBED-DAG: Number of String Entries: 015TEST_EMBED-DAG: Number of String Entries: 0
16TEST_EMBED-NEXT: Number of ID Entries: 116TEST_EMBED-NEXT: Number of ID Entries: 1
17TEST_EMBED-NEXT: Type: kRT_MANIFEST (ID 24) [17TEST_EMBED-NEXT: Type: kRT_MANIFEST (ID 24) [
deps/lld/test/COFF/msvclto-archive.ll+3-3
...@@ -9,14 +9,14 @@...@@ -9,14 +9,14 @@
9; RUN: mkdir -p %t.dir9; RUN: mkdir -p %t.dir
10; RUN: llvm-mc -triple=x86_64-pc-windows-msvc -filetype=obj -o %t.dir/bitcode.obj %p/Inputs/msvclto.s10; RUN: llvm-mc -triple=x86_64-pc-windows-msvc -filetype=obj -o %t.dir/bitcode.obj %p/Inputs/msvclto.s
11; RUN: lld-link %t-main1.a %t.dir/bitcode.obj /msvclto /out:%t.exe /opt:lldlto=1 /opt:icf \11; RUN: lld-link %t-main1.a %t.dir/bitcode.obj /msvclto /out:%t.exe /opt:lldlto=1 /opt:icf \
12; RUN: /entry:main /verbose > %t.log || true12; RUN: /entry:main /verbose 2> %t.log || true
13; RUN: FileCheck -check-prefix=BC %s < %t.log13; RUN: FileCheck -check-prefix=BC %s < %t.log
14; BC-NOT: Creating a temporary archive for14; BC-NOT: Creating a temporary archive for
1515
16; RUN: rm -f %t-main2.a16; RUN: rm -f %t-main2.a
17; RUN: llvm-ar cru %t-main2.a %t.dir/bitcode.obj17; RUN: llvm-ar cru %t-main2.a %t.dir/bitcode.obj
18; RUN: lld-link %t.obj %t-main2.a /msvclto /out:%t.exe /opt:lldlto=1 /opt:icf \18; RUN: lld-link %t.obj %t-main2.a /msvclto /out:%t.exe /opt:lldlto=1 /opt:icf \
19; RUN: /entry:main /verbose > %t.log || true19; RUN: /entry:main /verbose 2> %t.log || true
20; RUN: FileCheck -check-prefix=OBJ %s < %t.log20; RUN: FileCheck -check-prefix=OBJ %s < %t.log
21; OBJ-NOT: Creating a temporary archive21; OBJ-NOT: Creating a temporary archive
2222
...@@ -25,7 +25,7 @@...@@ -25,7 +25,7 @@
25; RUN: rm -f %t-main3.a25; RUN: rm -f %t-main3.a
26; RUN: llvm-ar cruT %t-main3.a %t.dir/bitcode.obj26; RUN: llvm-ar cruT %t-main3.a %t.dir/bitcode.obj
27; RUN: lld-link %t.obj %t-main3.a /msvclto /out:%t.exe /opt:lldlto=1 /opt:icf \27; RUN: lld-link %t.obj %t-main3.a /msvclto /out:%t.exe /opt:lldlto=1 /opt:icf \
28; RUN: /entry:main /verbose > %t.log || true28; RUN: /entry:main /verbose 2> %t.log || true
29; RUN: FileCheck -check-prefix=THIN %s < %t.log29; RUN: FileCheck -check-prefix=THIN %s < %t.log
30; THIN: Creating a temporary archive30; THIN: Creating a temporary archive
3131
deps/lld/test/COFF/msvclto-order.ll+1-1
...@@ -5,7 +5,7 @@...@@ -5,7 +5,7 @@
5; RUN: llc -filetype=obj %S/Inputs/msvclto-order-b.ll -o %T/msvclto-order-b.obj5; RUN: llc -filetype=obj %S/Inputs/msvclto-order-b.ll -o %T/msvclto-order-b.obj
6; RUN: llvm-ar crs %T/msvclto-order-b.lib %T/msvclto-order-b.obj6; RUN: llvm-ar crs %T/msvclto-order-b.lib %T/msvclto-order-b.obj
7; RUN: lld-link /verbose /msvclto /out:%t.exe /entry:main %t.obj \7; RUN: lld-link /verbose /msvclto /out:%t.exe /entry:main %t.obj \
8; RUN: %T/msvclto-order-a.lib %T/msvclto-order-b.lib > %t.log || true8; RUN: %T/msvclto-order-a.lib %T/msvclto-order-b.lib 2> %t.log || true
9; RUN: FileCheck %s < %t.log9; RUN: FileCheck %s < %t.log
1010
11; CHECK: : link.exe11; CHECK: : link.exe
deps/lld/test/COFF/msvclto.ll+1-1
...@@ -3,7 +3,7 @@...@@ -3,7 +3,7 @@
3; RUN: mkdir -p %t.dir3; RUN: mkdir -p %t.dir
4; RUN: llvm-mc -triple=x86_64-pc-windows-msvc -filetype=obj -o %t.dir/bitcode.obj %p/Inputs/msvclto.s4; RUN: llvm-mc -triple=x86_64-pc-windows-msvc -filetype=obj -o %t.dir/bitcode.obj %p/Inputs/msvclto.s
5; RUN: lld-link %t.obj %t.dir/bitcode.obj /msvclto /out:%t.exe /opt:lldlto=1 /opt:icf \5; RUN: lld-link %t.obj %t.dir/bitcode.obj /msvclto /out:%t.exe /opt:lldlto=1 /opt:icf \
6; RUN: /entry:main /verbose > %t.log || true6; RUN: /entry:main /verbose 2> %t.log || true
7; RUN: FileCheck %s < %t.log7; RUN: FileCheck %s < %t.log
88
9; CHECK: /opt:icf /entry:main9; CHECK: /opt:icf /entry:main
deps/lld/test/COFF/nodefaultlib.test+3-3
...@@ -19,9 +19,9 @@...@@ -19,9 +19,9 @@
19# RUN: /nodefaultlib:std64.lib >& %t.log || true19# RUN: /nodefaultlib:std64.lib >& %t.log || true
20# RUN: FileCheck -check-prefix=CHECK3 %s < %t.log20# RUN: FileCheck -check-prefix=CHECK3 %s < %t.log
2121
22CHECK1: hello64.obj: {{[Nn]}}o such file or directory22CHECK1: error: could not open hello64.obj: {{[Nn]}}o such file or directory
23CHECK2: hello64: {{[Nn]}}o such file or directory23CHECK2: error: could not open hello64: {{[Nn]}}o such file or directory
24CHECK3: hello64.obj: undefined symbol: MessageBoxA24CHECK3: error: {{.*}}hello64.obj: undefined symbol: MessageBoxA
2525
26# RUN: lld-link /libpath:%T /out:%t.exe /entry:main \26# RUN: lld-link /libpath:%T /out:%t.exe /entry:main \
27# RUN: /subsystem:console hello64.obj /defaultlib:std64.lib27# RUN: /subsystem:console hello64.obj /defaultlib:std64.lib
deps/lld/test/COFF/nopdb.test deleted-14
...@@ -1,14 +0,0 @@
1# Check that /debug creates %t.pdb.
2# RUN: rm -f %t.pdb
3# RUN: lld-link /debug /entry:main /out:%t.exe %p/Inputs/ret42.obj
4# RUN: ls %t.pdb
5
6# Check that /debug /nopdb does not create %t.pdb.
7# RUN: rm -f %t.pdb
8# RUN: lld-link /debug /nopdb /entry:main /out:%t.exe %p/Inputs/ret42.obj
9# RUN: not ls %t.pdb
10
11# Check that /debug /nopdb /pdb:%t.pdb does not create %t.pdb.
12# RUN: rm -f %t.pdb
13# RUN: lld-link /debug /nopdb /pdb:%t.pdb /entry:main /out:%t.exe %p/Inputs/ret42.obj
14# RUN: not ls %t.pdb
deps/lld/test/COFF/options.test+7-1
...@@ -2,7 +2,13 @@...@@ -2,7 +2,13 @@
22
3# RUN: lld-link /out:%t.exe /entry:main %t.obj3# RUN: lld-link /out:%t.exe /entry:main %t.obj
4# RUN: llvm-readobj -file-headers %t.exe | FileCheck -check-prefix=BIND %s4# RUN: llvm-readobj -file-headers %t.exe | FileCheck -check-prefix=BIND %s
5BIND: IMAGE_DLL_CHARACTERISTICS_NO_BIND5# RUN: lld-link /allowbind /out:%t.exe /entry:main %t.obj
6# RUN: llvm-readobj -file-headers %t.exe | FileCheck -check-prefix=BIND %s
7BIND-NOT: IMAGE_DLL_CHARACTERISTICS_NO_BIND
8
9# RUN: lld-link /allowbind:no /out:%t.exe /entry:main %t.obj
10# RUN: llvm-readobj -file-headers %t.exe | FileCheck -check-prefix=NOBIND %s
11NOBIND: IMAGE_DLL_CHARACTERISTICS_NO_BIND
612
7# RUN: lld-link /out:%t.exe /entry:main %t.obj13# RUN: lld-link /out:%t.exe /entry:main %t.obj
8# RUN: llvm-readobj -file-headers %t.exe | FileCheck -check-prefix=ISO %s14# RUN: llvm-readobj -file-headers %t.exe | FileCheck -check-prefix=ISO %s
deps/lld/test/COFF/pdata-arm64.yaml created+87
...@@ -0,0 +1,87 @@
1# RUN: yaml2obj < %s > %t.obj
2#
3# RUN: lld-link /out:%t.exe /entry:func1 /subsystem:console %t.obj
4# RUN: llvm-objdump -s -section=.pdata %t.exe | FileCheck -check-prefix=PDATA %s
5
6# PDATA: 00200000 2500a100 24200000 31002201
7
8--- !COFF
9header:
10 Machine: IMAGE_FILE_MACHINE_ARM64
11 Characteristics: [ ]
12sections:
13 - Name: .text
14 Characteristics: [ IMAGE_SCN_CNT_CODE, IMAGE_SCN_MEM_EXECUTE, IMAGE_SCN_MEM_READ ]
15 Alignment: 4
16 SectionData: ff4300d1f37b00a9f303012a00000094e003132a00000094f37b40a9ff430091c0035fd6f353bea9fe0b00f9f303012af403022a00000094e003132a00000094e003142a00000094fe0b40f9f353c2a8c0035fd6c0035fd6
17 Relocations:
18 - VirtualAddress: 12
19 SymbolName: func3
20 Type: IMAGE_REL_ARM64_BRANCH26
21 - VirtualAddress: 20
22 SymbolName: func3
23 Type: IMAGE_REL_ARM64_BRANCH26
24 - VirtualAddress: 52
25 SymbolName: func3
26 Type: IMAGE_REL_ARM64_BRANCH26
27 - VirtualAddress: 60
28 SymbolName: func3
29 Type: IMAGE_REL_ARM64_BRANCH26
30 - VirtualAddress: 68
31 SymbolName: func3
32 Type: IMAGE_REL_ARM64_BRANCH26
33 - Name: .pdata
34 Characteristics: [ IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_READ ]
35 Alignment: 4
36 SectionData: 0000000031002201000000002500a100
37 Relocations:
38 - VirtualAddress: 0
39 SymbolName: func2
40 Type: IMAGE_REL_ARM64_ADDR32NB
41 - VirtualAddress: 8
42 SymbolName: func1
43 Type: IMAGE_REL_ARM64_ADDR32NB
44symbols:
45 - Name: .text
46 Value: 0
47 SectionNumber: 1
48 SimpleType: IMAGE_SYM_TYPE_NULL
49 ComplexType: IMAGE_SYM_DTYPE_NULL
50 StorageClass: IMAGE_SYM_CLASS_STATIC
51 SectionDefinition:
52 Length: 57
53 NumberOfRelocations: 0
54 NumberOfLinenumbers: 0
55 CheckSum: 0
56 Number: 1
57 - Name: .pdata
58 Value: 0
59 SectionNumber: 2
60 SimpleType: IMAGE_SYM_TYPE_NULL
61 ComplexType: IMAGE_SYM_DTYPE_NULL
62 StorageClass: IMAGE_SYM_CLASS_STATIC
63 SectionDefinition:
64 Length: 16
65 NumberOfRelocations: 2
66 NumberOfLinenumbers: 0
67 CheckSum: 0
68 Number: 2
69 - Name: func1
70 Value: 0
71 SectionNumber: 1
72 SimpleType: IMAGE_SYM_TYPE_NULL
73 ComplexType: IMAGE_SYM_DTYPE_FUNCTION
74 StorageClass: IMAGE_SYM_CLASS_EXTERNAL
75 - Name: func2
76 Value: 36
77 SectionNumber: 1
78 SimpleType: IMAGE_SYM_TYPE_NULL
79 ComplexType: IMAGE_SYM_DTYPE_FUNCTION
80 StorageClass: IMAGE_SYM_CLASS_EXTERNAL
81 - Name: func3
82 Value: 84
83 SectionNumber: 1
84 SimpleType: IMAGE_SYM_TYPE_NULL
85 ComplexType: IMAGE_SYM_DTYPE_NULL
86 StorageClass: IMAGE_SYM_CLASS_EXTERNAL
87...
deps/lld/test/COFF/pdb-comdat.test+28-15
...@@ -25,8 +25,8 @@ pdb_comdat_main.obj should be included in the PDB....@@ -25,8 +25,8 @@ pdb_comdat_main.obj should be included in the PDB.
25RUN: rm -rf %t && mkdir -p %t && cd %t25RUN: rm -rf %t && mkdir -p %t && cd %t
26RUN: yaml2obj %S/Inputs/pdb_comdat_main.yaml -o pdb_comdat_main.obj26RUN: yaml2obj %S/Inputs/pdb_comdat_main.yaml -o pdb_comdat_main.obj
27RUN: yaml2obj %S/Inputs/pdb_comdat_bar.yaml -o pdb_comdat_bar.obj27RUN: yaml2obj %S/Inputs/pdb_comdat_bar.yaml -o pdb_comdat_bar.obj
28RUN: lld-link pdb_comdat_main.obj pdb_comdat_bar.obj -out:t.exe -debug -pdb:t.pdb -nodefaultlib -entry:main28RUN: lld-link pdb_comdat_main.obj pdb_comdat_bar.obj -out:%t.exe -debug -pdb:%t.pdb -nodefaultlib -entry:main
29RUN: llvm-pdbutil dump -l -symbols t.pdb | FileCheck %s29RUN: llvm-pdbutil dump -l -symbols -globals %t.pdb | FileCheck %s
3030
31CHECK: Lines31CHECK: Lines
32CHECK: ============================================================32CHECK: ============================================================
...@@ -38,6 +38,20 @@ CHECK: c:\src\llvm-project\build\pdb_comdat_bar.c (MD5: 365279DB4FCBEDD721...@@ -38,6 +38,20 @@ CHECK: c:\src\llvm-project\build\pdb_comdat_bar.c (MD5: 365279DB4FCBEDD721
38CHECK-NOT: c:\src\llvm-project\build\foo.h38CHECK-NOT: c:\src\llvm-project\build\foo.h
39CHECK-LABEL: Mod 0002 | `* Linker *`:39CHECK-LABEL: Mod 0002 | `* Linker *`:
4040
41CHECK-LABEL: Global Symbols
42CHECK-NEXT: ============================================================
43CHECK-NEXT: Records
44CHECK-NEXT: 84 | S_PROCREF [size = 20] `main`
45CHECK-NEXT: module = 1, sum name = 0, offset = 120
46CHECK-NEXT: 128 | S_PROCREF [size = 20] `foo`
47CHECK-NEXT: module = 1, sum name = 0, offset = 208
48CHECK-NEXT: 148 | S_PROCREF [size = 20] `bar`
49CHECK-NEXT: module = 2, sum name = 0, offset = 120
50CHECK-NEXT: 104 | S_GDATA32 [size = 24] `global`
51CHECK-NEXT: type = 0x0074 (int), addr = 0000:0000
52CHECK-NEXT: 168 | S_GDATA32 [size = 24] `global`
53CHECK-NEXT: type = 0x0074 (int), addr = 0000:0000
54
41CHECK: Symbols55CHECK: Symbols
42CHECK: ============================================================56CHECK: ============================================================
43CHECK-LABEL: Mod 0000 | `{{.*}}pdb_comdat_main.obj`:57CHECK-LABEL: Mod 0000 | `{{.*}}pdb_comdat_main.obj`:
...@@ -46,7 +60,7 @@ CHECK: 60 | S_COMPILE3 [size = 60]...@@ -46,7 +60,7 @@ CHECK: 60 | S_COMPILE3 [size = 60]
46CHECK: machine = intel x86-x64, Ver = Microsoft (R) Optimizing Compiler, language = c60CHECK: machine = intel x86-x64, Ver = Microsoft (R) Optimizing Compiler, language = c
47CHECK: frontend = 19.0.24215.1, backend = 19.0.24215.161CHECK: frontend = 19.0.24215.1, backend = 19.0.24215.1
48CHECK: flags = security checks | hot patchable62CHECK: flags = security checks | hot patchable
49CHECK: 120 | S_GPROC32_ID [size = 44] `main`63CHECK: 120 | S_GPROC32 [size = 44] `main`
50CHECK: parent = 0, end = 196, addr = 0002:0000, code size = 2464CHECK: parent = 0, end = 196, addr = 0002:0000, code size = 24
51CHECK: debug start = 4, debug end = 19, flags = none65CHECK: debug start = 4, debug end = 19, flags = none
52CHECK: 164 | S_FRAMEPROC [size = 32]66CHECK: 164 | S_FRAMEPROC [size = 32]
...@@ -54,24 +68,22 @@ CHECK: size = 40, padding size = 0, offset to padding = 0...@@ -54,24 +68,22 @@ CHECK: size = 40, padding size = 0, offset to padding = 0
54CHECK: bytes of callee saved registers = 0, exception handler addr = 0000:000068CHECK: bytes of callee saved registers = 0, exception handler addr = 0000:0000
55CHECK: flags = has async eh | opt speed69CHECK: flags = has async eh | opt speed
56CHECK: 196 | S_END [size = 4]70CHECK: 196 | S_END [size = 4]
57CHECK: 200 | S_GDATA32 [size = 24] `global`71CHECK: 200 | S_BUILDINFO [size = 8] BuildId = `0x100A`
58CHECK: type = 0x0074 (int), addr = 0000:000072CHECK: 208 | S_GPROC32 [size = 44] `foo`
59CHECK: 224 | S_BUILDINFO [size = 8] BuildId = `0x100A`73CHECK: parent = 0, end = 284, addr = 0002:0032, code size = 15
60CHECK: 232 | S_GPROC32_ID [size = 44] `foo`
61CHECK: parent = 0, end = 308, addr = 0002:0032, code size = 15
62CHECK: debug start = 0, debug end = 14, flags = none74CHECK: debug start = 0, debug end = 14, flags = none
63CHECK: 276 | S_FRAMEPROC [size = 32]75CHECK: 252 | S_FRAMEPROC [size = 32]
64CHECK: size = 0, padding size = 0, offset to padding = 076CHECK: size = 0, padding size = 0, offset to padding = 0
65CHECK: bytes of callee saved registers = 0, exception handler addr = 0000:000077CHECK: bytes of callee saved registers = 0, exception handler addr = 0000:0000
66CHECK: flags = marked inline | has async eh | opt speed78CHECK: flags = marked inline | has async eh | opt speed
67CHECK: 308 | S_END [size = 4]79CHECK: 284 | S_END [size = 4]
68CHECK-LABEL: Mod 0001 | `{{.*}}pdb_comdat_bar.obj`:80CHECK-LABEL: Mod 0001 | `{{.*}}pdb_comdat_bar.obj`:
69CHECK: 4 | S_OBJNAME [size = 56] sig=0, `C:\src\llvm-project\build\pdb_comdat_bar.obj`81CHECK: 4 | S_OBJNAME [size = 56] sig=0, `C:\src\llvm-project\build\pdb_comdat_bar.obj`
70CHECK: 60 | S_COMPILE3 [size = 60]82CHECK: 60 | S_COMPILE3 [size = 60]
71CHECK: machine = intel x86-x64, Ver = Microsoft (R) Optimizing Compiler, language = c83CHECK: machine = intel x86-x64, Ver = Microsoft (R) Optimizing Compiler, language = c
72CHECK: frontend = 19.0.24215.1, backend = 19.0.24215.184CHECK: frontend = 19.0.24215.1, backend = 19.0.24215.1
73CHECK: flags = security checks | hot patchable85CHECK: flags = security checks | hot patchable
74CHECK: 120 | S_GPROC32_ID [size = 44] `bar`86CHECK: 120 | S_GPROC32 [size = 44] `bar`
75CHECK: parent = 0, end = 196, addr = 0002:0048, code size = 1487CHECK: parent = 0, end = 196, addr = 0002:0048, code size = 14
76CHECK: debug start = 4, debug end = 9, flags = none88CHECK: debug start = 4, debug end = 9, flags = none
77CHECK: 164 | S_FRAMEPROC [size = 32]89CHECK: 164 | S_FRAMEPROC [size = 32]
...@@ -79,10 +91,8 @@ CHECK: size = 40, padding size = 0, offset to padding = 0...@@ -79,10 +91,8 @@ CHECK: size = 40, padding size = 0, offset to padding = 0
79CHECK: bytes of callee saved registers = 0, exception handler addr = 0000:000091CHECK: bytes of callee saved registers = 0, exception handler addr = 0000:0000
80CHECK: flags = has async eh | opt speed92CHECK: flags = has async eh | opt speed
81CHECK: 196 | S_END [size = 4]93CHECK: 196 | S_END [size = 4]
82CHECK: 200 | S_GDATA32 [size = 24] `global`94CHECK: 200 | S_BUILDINFO [size = 8] BuildId = `0x100D`
83CHECK: type = 0x0074 (int), addr = 0000:000095CHECK-NOT: S_GPROC32 {{.*}} `foo`
84CHECK: 224 | S_BUILDINFO [size = 8] BuildId = `0x100D`
85CHECK-NOT: S_GPROC32_ID {{.*}} `foo`
86CHECK-LABEL: Mod 0002 | `* Linker *`:96CHECK-LABEL: Mod 0002 | `* Linker *`:
8797
88Reorder the object files and verify that the other table is selected.98Reorder the object files and verify that the other table is selected.
...@@ -97,3 +107,6 @@ REORDER-LABEL: Mod 0001 | `{{.*}}pdb_comdat_main.obj`:...@@ -97,3 +107,6 @@ REORDER-LABEL: Mod 0001 | `{{.*}}pdb_comdat_main.obj`:
97REORDER: c:\src\llvm-project\build\pdb_comdat_main.c107REORDER: c:\src\llvm-project\build\pdb_comdat_main.c
98REORDER-NOT: c:\src\llvm-project\build\foo.h108REORDER-NOT: c:\src\llvm-project\build\foo.h
99REORDER-LABEL: Mod 0002 | `* Linker *`:109REORDER-LABEL: Mod 0002 | `* Linker *`:
110
111Make sure that we don't crash on non-prevailing debug sections if -debug is not enabled.
112RUN: lld-link pdb_comdat_main.obj pdb_comdat_bar.obj -out:%t.exe -nodefaultlib -entry:main
deps/lld/test/COFF/pdb-diff.test+10-7
...@@ -4,8 +4,11 @@ as the "baseline" for us to measure against. Then we link the same object...@@ -4,8 +4,11 @@ as the "baseline" for us to measure against. Then we link the same object
4file with LLD and compare the two PDBs. Since the baseline object file and4file with LLD and compare the two PDBs. Since the baseline object file and
5PDB are already checked in, we just run LLD on the object file.5PDB are already checked in, we just run LLD on the object file.
66
7RUN: lld-link /debug /pdb:%T/pdb-diff-lld.pdb /nodefaultlib /entry:main %S/Inputs/pdb-diff.obj7RUN: rm -f %T/pdb-diff-lld.pdb %T/pdb-diff-lld.exe
8RUN: llvm-pdbutil diff -result -values=false -left-bin-root=%S -right-bin-root=D:/src/llvm-mono/lld/test/COFF/ %T/pdb-diff-lld.pdb %S/Inputs/pdb-diff-cl.pdb | FileCheck %s8RUN: lld-link /debug /pdb:%T/pdb-diff-lld.pdb /out:%T/pdb-diff-lld.exe /nodefaultlib \
9RUN: /entry:main %S/Inputs/pdb-diff.obj
10RUN: llvm-pdbutil diff -result -values=false -left-bin-root=%S -right-bin-root=D:/src/llvm-mono/lld/test/COFF/ \
11RUN: %T/pdb-diff-lld.pdb %S/Inputs/pdb-diff-cl.pdb | FileCheck %s
912
10CHECK: ----------------------13CHECK: ----------------------
11CHECK-NEXT: | MSF Super Block |14CHECK-NEXT: | MSF Super Block |
...@@ -25,7 +28,7 @@ CHECK-NEXT: | Stream Directory |...@@ -25,7 +28,7 @@ CHECK-NEXT: | Stream Directory |
25CHECK-NEXT: |------------------------------+---|28CHECK-NEXT: |------------------------------+---|
26CHECK-NEXT: | File | |29CHECK-NEXT: | File | |
27CHECK-NEXT: |------------------------------+---|30CHECK-NEXT: |------------------------------+---|
28CHECK-NEXT: | Stream Count | D |31CHECK-NEXT: | Stream Count | I |
29CHECK-NEXT: |------------------------------+---|32CHECK-NEXT: |------------------------------+---|
30CHECK-NEXT: | Old MSF Directory | I |33CHECK-NEXT: | Old MSF Directory | I |
31CHECK-NEXT: |------------------------------+---|34CHECK-NEXT: |------------------------------+---|
...@@ -55,9 +58,9 @@ CHECK-NEXT: | IPI Hash | {{[EI]}} |...@@ -55,9 +58,9 @@ CHECK-NEXT: | IPI Hash | {{[EI]}} |
55CHECK-NEXT: |------------------------------+---|58CHECK-NEXT: |------------------------------+---|
56CHECK-NEXT: | Public Symbol Hash | {{[EI]}} |59CHECK-NEXT: | Public Symbol Hash | {{[EI]}} |
57CHECK-NEXT: |------------------------------+---|60CHECK-NEXT: |------------------------------+---|
58CHECK-NEXT: | Public Symbol Records | {{[EI]}} |61CHECK-NEXT: | Global Symbol Hash | {{[EI]}} |
59CHECK-NEXT: |------------------------------+---|62CHECK-NEXT: |------------------------------+---|
60CHECK-NEXT: | Global Symbol Hash | D |63CHECK-NEXT: | Symbol Records | {{[EI]}} |
61CHECK-NEXT: |------------------------------+---|64CHECK-NEXT: |------------------------------+---|
62CHECK-NEXT: ------------------------------------65CHECK-NEXT: ------------------------------------
63CHECK-NEXT: | String Table |66CHECK-NEXT: | String Table |
...@@ -152,7 +155,7 @@ CHECK-NEXT: | DBG (NewFPO) | {{[EI]}} |...@@ -152,7 +155,7 @@ CHECK-NEXT: | DBG (NewFPO) | {{[EI]}} |
152CHECK-NEXT: |----------------------------------------+---|155CHECK-NEXT: |----------------------------------------+---|
153CHECK-NEXT: | DBG (SectionHdrOrig) | I |156CHECK-NEXT: | DBG (SectionHdrOrig) | I |
154CHECK-NEXT: |----------------------------------------+---|157CHECK-NEXT: |----------------------------------------+---|
155CHECK-NEXT: | Globals Stream | D |158CHECK-NEXT: | Globals Stream | {{[EI]}} |
156CHECK-NEXT: |----------------------------------------+---|159CHECK-NEXT: |----------------------------------------+---|
157CHECK-NEXT: | Publics Stream | {{[EI]}} |160CHECK-NEXT: | Publics Stream | {{[EI]}} |
158CHECK-NEXT: |----------------------------------------+---|161CHECK-NEXT: |----------------------------------------+---|
...@@ -186,7 +189,7 @@ CHECK-NEXT: | - Pdb File Path Index | I |...@@ -186,7 +189,7 @@ CHECK-NEXT: | - Pdb File Path Index | I |
186CHECK-NEXT: |----------------------------------------+---|189CHECK-NEXT: |----------------------------------------+---|
187CHECK-NEXT: | - Source File Name Index | I |190CHECK-NEXT: | - Source File Name Index | I |
188CHECK-NEXT: |----------------------------------------+---|191CHECK-NEXT: |----------------------------------------+---|
189CHECK-NEXT: | - Symbol Byte Size | D |192CHECK-NEXT: | - Symbol Byte Size |
190CHECK-NEXT: |----------------------------------------+---|193CHECK-NEXT: |----------------------------------------+---|
191CHECK-NEXT: | Module "* Linker *" |194CHECK-NEXT: | Module "* Linker *" |
192CHECK-NEXT: |----------------------------------------+---|195CHECK-NEXT: |----------------------------------------+---|
deps/lld/test/COFF/pdb-global-gc.yaml+13-9
...@@ -1,8 +1,8 @@...@@ -1,8 +1,8 @@
1# RUN: yaml2obj %s -o %t.obj1# RUN: yaml2obj %s -o %t.obj
2# RUN: llvm-mc %S/Inputs/pdb-global-gc.s -triple x86_64-windows-msvc -filetype=obj -o %t2.obj2# RUN: llvm-mc %S/Inputs/pdb-global-gc.s -triple x86_64-windows-msvc -filetype=obj -o %t2.obj
3# RUN: lld-link %t.obj %t2.obj -debug -entry:main \3# RUN: lld-link %t.obj %t2.obj -debug -entry:main \
4# RUN: -nodefaultlib -debug -out:%t.exe -pdb:%t.pdb -verbose4# RUN: -nodefaultlib -opt:ref -out:%t.exe -pdb:%t.pdb -verbose
5# RUN: llvm-pdbutil dump -symbols %t.pdb | FileCheck %s5# RUN: llvm-pdbutil dump -symbols -globals %t.pdb | FileCheck %s
66
7# This tests the case where an __imp_ chunk is discarded by linker GC. The debug7# This tests the case where an __imp_ chunk is discarded by linker GC. The debug
8# info may refer to the __imp_ symbol still.8# info may refer to the __imp_ symbol still.
...@@ -12,13 +12,17 @@...@@ -12,13 +12,17 @@
12# int discarded() { return __wc_mb_cur; }12# int discarded() { return __wc_mb_cur; }
13# int main() { return g2; }13# int main() { return g2; }
1414
15# CHECK: Symbols15# CHECK: Global Symbols
16# CHECK: ============================================================16# CHECK-NEXT: ============================================================
17# CHECK: Mod 0000 | `{{.*}}pdb-global-gc.yaml.tmp.obj`:17# CHECK-NEXT: Records
18# CHECK: 4 | S_GDATA32 [size = 28] `__wc_mb_cur`18# CHECK-NEXT: 20 | S_GDATA32 [size = 28] `__wc_mb_cur`
19# CHECK-NEXT: type = 0x0070 (char), addr = 0000:000019# CHECK-NEXT: type = 0x0070 (char), addr = 0000:0000
20# CHECK: Mod 0001 | `{{.*}}pdb-global-gc.yaml.tmp2.obj`:20
21# CHECK: Mod 0002 | `* Linker *`:21# CHECK: Symbols
22# CHECK: ============================================================
23# CHECK-NEXT: Mod 0000 | `{{.*}}pdb-global-gc.yaml.tmp.obj`:
24# CHECK-NEXT: Mod 0001 | `{{.*}}pdb-global-gc.yaml.tmp2.obj`:
25# CHECK-NEXT: Mod 0002 | `* Linker *`:
2226
23--- !COFF27--- !COFF
24header:28header:
deps/lld/test/COFF/pdb-global-hashes.test created+93
...@@ -0,0 +1,93 @@
1RUN: yaml2obj %p/Inputs/pdb-hashes-1.yaml > %t.1.obj
2RUN: yaml2obj %p/Inputs/pdb-hashes-2.yaml > %t.2.obj
3RUN: yaml2obj %p/Inputs/pdb-hashes-2-missing.yaml > %t.2.missing.obj
4RUN: lld-link /debug %t.1.obj %t.2.obj /entry:main /nodefaultlib /PDB:%t.nohash.pdb
5RUN: lld-link /debug:ghash %t.1.obj %t.2.obj /entry:main /nodefaultlib /PDB:%t.hash.pdb
6RUN: lld-link /debug:ghash %t.1.obj %t.2.missing.obj /entry:main /nodefaultlib /PDB:%t.mixed.pdb
7RUN: llvm-pdbutil dump -types -ids %t.nohash.pdb | FileCheck %s
8RUN: llvm-pdbutil dump -types -ids %t.hash.pdb | FileCheck %s
9RUN: llvm-pdbutil dump -types -ids %t.mixed.pdb | FileCheck %s
10
11; These object files were generated via the following inputs and commands:
12; ----------------------------------------------
13; // obj.h
14; namespace NS {
15; struct Foo {
16; explicit Foo(int x) : X(x) {}
17; int X;
18; };
19;
20; int func(const Foo &f);
21; }
22; ----------------------------------------------
23; // obj1.cpp
24; #include "obj.h"
25;
26; int main(int argc, char **argv) {
27; NS::Foo f(argc);
28; return NS::func(f);
29; }
30; ----------------------------------------------
31; // obj2.cpp
32; #include "obj.h"
33;
34; int NS::func(const Foo &f) {
35; return 2 * f.X;
36; }
37; ----------------------------------------------
38; $ clang-cl /Z7 /GS- obj1.cpp /c /o obj1.obj
39; $ clang-cl /Z7 /GS- obj2.cpp /c /o obj2.obj
40
41CHECK: Types (TPI Stream)
42CHECK-NEXT: ============================================================
43CHECK-NEXT: Showing 13 records
44CHECK-NEXT: 0x1000 | LF_POINTER [size = 12]
45CHECK-NEXT: referent = 0x0470 (char*), mode = pointer, opts = None, kind = ptr32
46CHECK-NEXT: 0x1001 | LF_ARGLIST [size = 16]
47CHECK-NEXT: 0x0074 (int): `int`
48CHECK-NEXT: 0x1000: `char**`
49CHECK-NEXT: 0x1002 | LF_PROCEDURE [size = 16]
50CHECK-NEXT: return type = 0x0074 (int), # args = 2, param list = 0x1001
51CHECK-NEXT: calling conv = cdecl, options = None
52CHECK-NEXT: 0x1003 | LF_STRUCTURE [size = 44] `NS::Foo`
53CHECK-NEXT: unique name: `.?AUFoo@NS@@`
54CHECK-NEXT: vtable: <no type>, base list: <no type>, field list: <no type>
55CHECK-NEXT: options: forward ref | has unique name
56CHECK-NEXT: 0x1004 | LF_POINTER [size = 12]
57CHECK-NEXT: referent = 0x1003, mode = pointer, opts = None, kind = ptr32
58CHECK-NEXT: 0x1005 | LF_ARGLIST [size = 12]
59CHECK-NEXT: 0x0074 (int): `int`
60CHECK-NEXT: 0x1006 | LF_MFUNCTION [size = 28]
61CHECK-NEXT: return type = 0x0003 (void), # args = 1, param list = 0x1005
62CHECK-NEXT: class type = 0x1003, this type = 0x1004, this adjust = 0
63CHECK-NEXT: calling conv = thiscall, options = None
64CHECK-NEXT: 0x1007 | LF_FIELDLIST [size = 28]
65CHECK-NEXT: - LF_MEMBER [name = `X`, Type = 0x0074 (int), offset = 0, attrs = public]
66CHECK-NEXT: - LF_ONEMETHOD [name = `Foo`]
67CHECK-NEXT: type = 0x1006, vftable offset = -1, attrs = public
68CHECK-NEXT: 0x1008 | LF_STRUCTURE [size = 44] `NS::Foo`
69CHECK-NEXT: unique name: `.?AUFoo@NS@@`
70CHECK-NEXT: vtable: <no type>, base list: <no type>, field list: 0x1007
71CHECK-NEXT: options: has unique name
72CHECK-NEXT: 0x1009 | LF_MODIFIER [size = 12]
73CHECK-NEXT: referent = 0x1003, modifiers = const
74CHECK-NEXT: 0x100A | LF_POINTER [size = 12]
75CHECK-NEXT: referent = 0x1009, mode = ref, opts = None, kind = ptr32
76CHECK-NEXT: 0x100B | LF_ARGLIST [size = 12]
77CHECK-NEXT: 0x100A: `const NS::Foo&`
78CHECK-NEXT: 0x100C | LF_PROCEDURE [size = 16]
79CHECK-NEXT: return type = 0x0074 (int), # args = 1, param list = 0x100B
80CHECK-NEXT: calling conv = cdecl, options = None
81CHECK: Types (IPI Stream)
82CHECK-NEXT: ============================================================
83CHECK-NEXT: Showing 6 records
84CHECK-NEXT: 0x1000 | LF_FUNC_ID [size = 20]
85CHECK-NEXT: name = main, type = 0x1002, parent scope = <no type>
86CHECK-NEXT: 0x1001 | LF_STRING_ID [size = 48] ID: <no type>, String: D:\src\llvmbuild\clang\Debug\x86\obj.h
87CHECK-NEXT: 0x1002 | LF_UDT_SRC_LINE [size = 16]
88CHECK-NEXT: udt = 0x1008, file = 4097, line = 2
89CHECK-NEXT: 0x1003 | LF_MFUNC_ID [size = 16]
90CHECK-NEXT: name = Foo, type = 0x1006, class type = 0x1003
91CHECK-NEXT: 0x1004 | LF_STRING_ID [size = 12] ID: <no type>, String: NS
92CHECK-NEXT: 0x1005 | LF_FUNC_ID [size = 20]
93CHECK-NEXT: name = func, type = 0x100C, parent scope = 0x1004
deps/lld/test/COFF/pdb-globals.test created+42
...@@ -0,0 +1,42 @@
1RUN: yaml2obj %S/Inputs/pdb-globals.yaml > %t.obj
2RUN: lld-link /debug /nodefaultlib /entry:main /out:%t.exe /pdb:%t.pdb %t.obj
3RUN: llvm-pdbutil dump -symbols -globals %t.pdb | FileCheck %s
4
5# Test that we correctly distribute symbols between the globals and module
6# symbol streams. Specifically:
7# * S_UDT, S_GDATA32, and S_CONSTANT end up in the globals stream, and are
8# omitted from the module stream.
9# * S_GPROC32 and S_LPROC32 end up in the symbols stream, but S_PROCREF and
10# S_LPROCREF are added to the globals stream that refer to the module
11# stream.
12# * S_LDATA32 is copied byte for byte into both streams.
13
14
15CHECK-LABEL: Global Symbols
16CHECK-NEXT: ============================================================
17CHECK-NEXT: Records
18CHECK-NEXT: 160 | S_PROCREF [size = 28] `GlobalFunc`
19CHECK-NEXT: module = 1, sum name = 0, offset = 52
20CHECK-NEXT: 188 | S_PROCREF [size = 20] `main`
21CHECK-NEXT: module = 1, sum name = 0, offset = 108
22CHECK-NEXT: 208 | S_LPROCREF [size = 24] `LocalFunc`
23CHECK-NEXT: module = 1, sum name = 0, offset = 292
24CHECK-NEXT: 312 | S_PROCREF [size = 40] `HelloPoint::HelloPoint`
25CHECK-NEXT: module = 1, sum name = 0, offset = 376
26CHECK-NEXT: 232 | S_GDATA32 [size = 28] `__purecall`
27CHECK-NEXT: type = 0x0403 (void*), addr = 0000:0000
28CHECK-NEXT: 260 | S_GDATA32 [size = 24] `GlobalVar`
29CHECK-NEXT: type = 0x100B (const int*), addr = 0001:0000
30CHECK-NEXT: 284 | S_LDATA32 [size = 28] `ConstantVar`
31CHECK-NEXT: type = 0x100A (const int), addr = 0002:0000
32
33CHECK-LABEL: Symbols
34CHECK-NEXT: ============================================================
35CHECK-NEXT: Mod 0000
36CHECK-NOT: | S_GDATA32
37CHECK-NOT: | S_UDT
38CHECK: 52 | S_GPROC32 [size = 52] `GlobalFunc`
39CHECK: 108 | S_GPROC32 [size = 44] `main`
40CHECK: 292 | S_LPROC32 [size = 52] `LocalFunc`
41CHECK: 348 | S_LDATA32 [size = 28] `ConstantVar`
42CHECK: 376 | S_GPROC32 [size = 64] `HelloPoint::HelloPoint`
deps/lld/test/COFF/pdb-heapsite.yaml created+1561
...@@ -0,0 +1,1561 @@
1# RUN: yaml2obj %s -o %t.obj
2# RUN: lld-link %t.obj -dll -debug -noentry -nodefaultlib -debug -out:%t.exe -pdb:%t.pdb
3# RUN: llvm-pdbutil dump -symbols %t.pdb | FileCheck %s
4
5# This object generated from this C++ source:
6# // t.cpp
7# void *operator new(size_t) { return nullptr; }
8# struct Foo { int x; };
9# extern "C" __declspec(dllexport) Foo *f() { return new Foo; }
10
11# Compile as:
12# $ cl -c -Z7 t.cpp
13
14# CHECK: S_HEAPALLOCSITE [size = 16]
15# CHECK-NEXT: type = 0x1000 (Foo), addr = {{.*}} call size = 5
16
17--- !COFF
18header:
19 Machine: IMAGE_FILE_MACHINE_AMD64
20 Characteristics: [ ]
21sections:
22 - Name: .drectve
23 Characteristics: [ IMAGE_SCN_LNK_INFO, IMAGE_SCN_LNK_REMOVE ]
24 Alignment: 1
25 SectionData: 2020202F44454641554C544C49423A224C4942434D5422202F44454641554C544C49423A224F4C444E414D455322202F4558504F52543A6620
26 - Name: '.debug$S'
27 Characteristics: [ IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_DISCARDABLE, IMAGE_SCN_MEM_READ ]
28 Alignment: 1
29 Subsections:
30 - !Symbols
31 Records:
32 - Kind: S_OBJNAME
33 ObjNameSym:
34 Signature: 0
35 ObjectName: 'C:\src\llvm-project\build\t.obj'
36 - Kind: S_COMPILE3
37 Compile3Sym:
38 Flags: [ SecurityChecks, HotPatch ]
39 Machine: X64
40 FrontendMajor: 19
41 FrontendMinor: 11
42 FrontendBuild: 25508
43 FrontendQFE: 2
44 BackendMajor: 19
45 BackendMinor: 11
46 BackendBuild: 25508
47 BackendQFE: 2
48 Version: 'Microsoft (R) Optimizing Compiler'
49 - !Symbols
50 Records:
51 - Kind: S_GPROC32_ID
52 ProcSym:
53 CodeSize: 8
54 DbgStart: 5
55 DbgEnd: 7
56 FunctionType: 4104
57 Flags: [ ]
58 DisplayName: operator new
59 - Kind: S_FRAMEPROC
60 FrameProcSym:
61 TotalFrameBytes: 0
62 PaddingFrameBytes: 0
63 OffsetToPadding: 0
64 BytesOfCalleeSavedRegisters: 0
65 OffsetOfExceptionHandler: 0
66 SectionIdOfExceptionHandler: 0
67 Flags: [ AsynchronousExceptionHandling, OptimizedForSpeed ]
68 - Kind: S_REGREL32
69 RegRelativeSym:
70 Offset: 8
71 Type: 35
72 Register: RSP
73 VarName: __formal
74 - Kind: S_PROC_ID_END
75 ScopeEndSym:
76 - !Lines
77 CodeSize: 8
78 Flags: [ ]
79 RelocOffset: 0
80 RelocSegment: 0
81 Blocks:
82 - FileName: 'c:\src\llvm-project\build\t.cpp'
83 Lines:
84 - Offset: 0
85 LineStart: 1
86 IsStatement: true
87 EndDelta: 0
88 Columns:
89 - !Symbols
90 Records:
91 - Kind: S_GPROC32_ID
92 ProcSym:
93 CodeSize: 29
94 DbgStart: 4
95 DbgEnd: 24
96 FunctionType: 4107
97 Flags: [ ]
98 DisplayName: f
99 - Kind: S_FRAMEPROC
100 FrameProcSym:
101 TotalFrameBytes: 56
102 PaddingFrameBytes: 0
103 OffsetToPadding: 0
104 BytesOfCalleeSavedRegisters: 0
105 OffsetOfExceptionHandler: 0
106 SectionIdOfExceptionHandler: 0
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996 - Kind: LF_ENUMERATE
997 Enumerator:
998 Attrs: 3
999 Value: 4096
1000 Name: eInterfaceParameterUsage
1001 - Kind: LF_ENUMERATE
1002 Enumerator:
1003 Attrs: 3
1004 Value: 12288
1005 Name: eMethodParameterUsage
1006 - Kind: LF_ENUMERATE
1007 Enumerator:
1008 Attrs: 3
1009 Value: 16384
1010 Name: eIDLModuleUsage
1011 - Kind: LF_ENUMERATE
1012 Enumerator:
1013 Attrs: 3
1014 Value: 32768
1015 Name: eAnonymousUsage
1016 - Kind: LF_ENUMERATE
1017 Enumerator:
1018 Attrs: 3
1019 Value: 65536
1020 Name: eTypedefUsage
1021 - Kind: LF_ENUMERATE
1022 Enumerator:
1023 Attrs: 3
1024 Value: 131072
1025 Name: eUnionUsage
1026 - Kind: LF_ENUMERATE
1027 Enumerator:
1028 Attrs: 3
1029 Value: 262144
1030 Name: eEnumUsage
1031 - Kind: LF_ENUMERATE
1032 Enumerator:
1033 Attrs: 3
1034 Value: 524288
1035 Name: eDefineTagUsage
1036 - Kind: LF_ENUMERATE
1037 Enumerator:
1038 Attrs: 3
1039 Value: 1048576
1040 Name: eStructUsage
1041 - Kind: LF_ENUMERATE
1042 Enumerator:
1043 Attrs: 3
1044 Value: 2097152
1045 Name: eLocalUsage
1046 - Kind: LF_ENUMERATE
1047 Enumerator:
1048 Attrs: 3
1049 Value: 4194304
1050 Name: ePropertyUsage
1051 - Kind: LF_ENUMERATE
1052 Enumerator:
1053 Attrs: 3
1054 Value: 8388608
1055 Name: eEventUsage
1056 - Kind: LF_ENUMERATE
1057 Enumerator:
1058 Attrs: 3
1059 Value: 16777216
1060 Name: eTemplateUsage
1061 - Kind: LF_ENUMERATE
1062 Enumerator:
1063 Attrs: 3
1064 Value: 16777216
1065 Name: eModuleUsage
1066 - Kind: LF_ENUMERATE
1067 Enumerator:
1068 Attrs: 3
1069 Value: 33554432
1070 Name: eIllegalUsage
1071 - Kind: LF_ENUMERATE
1072 Enumerator:
1073 Attrs: 3
1074 Value: 67108864
1075 Name: eAsynchronousUsage
1076 - Kind: LF_ENUMERATE
1077 Enumerator:
1078 Attrs: 3
1079 Value: 4161535
1080 Name: eAnyIDLUsage
1081 - Kind: LF_ENUM
1082 Enum:
1083 NumEnumerators: 30
1084 Options: [ None, Nested, HasUniqueName ]
1085 FieldList: 4164
1086 Name: '__vc_attributes::helper_attributes::usageAttribute::usage_e'
1087 UniqueName: '.?AW4usage_e@usageAttribute@helper_attributes@__vc_attributes@@'
1088 UnderlyingType: 116
1089 - Kind: LF_UDT_SRC_LINE
1090 UdtSourceLine:
1091 UDT: 4165
1092 SourceFile: 4111
1093 LineNumber: 51
1094 - Kind: LF_ARGLIST
1095 ArgList:
1096 ArgIndices: [ 117 ]
1097 - Kind: LF_POINTER
1098 Pointer:
1099 ReferentType: 4163
1100 Attrs: 66572
1101 - Kind: LF_MFUNCTION
1102 MemberFunction:
1103 ReturnType: 3
1104 ClassType: 4163
1105 ThisType: 4168
1106 CallConv: NearC
1107 Options: [ None, Constructor ]
1108 ParameterCount: 1
1109 ArgumentList: 4167
1110 ThisPointerAdjustment: 0
1111 - Kind: LF_FIELDLIST
1112 FieldList:
1113 - Kind: LF_NESTTYPE
1114 NestedType:
1115 Type: 4165
1116 Name: usage_e
1117 - Kind: LF_ONEMETHOD
1118 OneMethod:
1119 Type: 4169
1120 Attrs: 3
1121 VFTableOffset: -1
1122 Name: usageAttribute
1123 - Kind: LF_MEMBER
1124 DataMember:
1125 Attrs: 3
1126 Type: 117
1127 FieldOffset: 0
1128 Name: value
1129 - Kind: LF_STRUCTURE
1130 Class:
1131 MemberCount: 3
1132 Options: [ None, HasConstructorOrDestructor, ContainsNestedClass, HasUniqueName ]
1133 FieldList: 4170
1134 Name: '__vc_attributes::helper_attributes::usageAttribute'
1135 UniqueName: '.?AUusageAttribute@helper_attributes@__vc_attributes@@'
1136 DerivationList: 0
1137 VTableShape: 0
1138 Size: 4
1139 - Kind: LF_UDT_SRC_LINE
1140 UdtSourceLine:
1141 UDT: 4171
1142 SourceFile: 4111
1143 LineNumber: 49
1144 - Kind: LF_STRUCTURE
1145 Class:
1146 MemberCount: 0
1147 Options: [ None, ForwardReference, HasUniqueName ]
1148 FieldList: 0
1149 Name: '__vc_attributes::helper_attributes::v1_alttypeAttribute'
1150 UniqueName: '.?AUv1_alttypeAttribute@helper_attributes@__vc_attributes@@'
1151 DerivationList: 0
1152 VTableShape: 0
1153 Size: 0
1154 - Kind: LF_FIELDLIST
1155 FieldList:
1156 - Kind: LF_ENUMERATE
1157 Enumerator:
1158 Attrs: 3
1159 Value: 0
1160 Name: eBoolean
1161 - Kind: LF_ENUMERATE
1162 Enumerator:
1163 Attrs: 3
1164 Value: 1
1165 Name: eInteger
1166 - Kind: LF_ENUMERATE
1167 Enumerator:
1168 Attrs: 3
1169 Value: 2
1170 Name: eFloat
1171 - Kind: LF_ENUMERATE
1172 Enumerator:
1173 Attrs: 3
1174 Value: 3
1175 Name: eDouble
1176 - Kind: LF_ENUM
1177 Enum:
1178 NumEnumerators: 4
1179 Options: [ None, Nested, HasUniqueName ]
1180 FieldList: 4174
1181 Name: '__vc_attributes::helper_attributes::v1_alttypeAttribute::type_e'
1182 UniqueName: '.?AW4type_e@v1_alttypeAttribute@helper_attributes@__vc_attributes@@'
1183 UnderlyingType: 116
1184 - Kind: LF_UDT_SRC_LINE
1185 UdtSourceLine:
1186 UDT: 4175
1187 SourceFile: 4111
1188 LineNumber: 38
1189 - Kind: LF_ARGLIST
1190 ArgList:
1191 ArgIndices: [ 4175 ]
1192 - Kind: LF_POINTER
1193 Pointer:
1194 ReferentType: 4173
1195 Attrs: 66572
1196 - Kind: LF_MFUNCTION
1197 MemberFunction:
1198 ReturnType: 3
1199 ClassType: 4173
1200 ThisType: 4178
1201 CallConv: NearC
1202 Options: [ None, Constructor ]
1203 ParameterCount: 1
1204 ArgumentList: 4177
1205 ThisPointerAdjustment: 0
1206 - Kind: LF_FIELDLIST
1207 FieldList:
1208 - Kind: LF_NESTTYPE
1209 NestedType:
1210 Type: 4175
1211 Name: type_e
1212 - Kind: LF_ONEMETHOD
1213 OneMethod:
1214 Type: 4179
1215 Attrs: 3
1216 VFTableOffset: -1
1217 Name: v1_alttypeAttribute
1218 - Kind: LF_MEMBER
1219 DataMember:
1220 Attrs: 3
1221 Type: 4175
1222 FieldOffset: 0
1223 Name: type
1224 - Kind: LF_STRUCTURE
1225 Class:
1226 MemberCount: 3
1227 Options: [ None, HasConstructorOrDestructor, ContainsNestedClass, HasUniqueName ]
1228 FieldList: 4180
1229 Name: '__vc_attributes::helper_attributes::v1_alttypeAttribute'
1230 UniqueName: '.?AUv1_alttypeAttribute@helper_attributes@__vc_attributes@@'
1231 DerivationList: 0
1232 VTableShape: 0
1233 Size: 4
1234 - Kind: LF_UDT_SRC_LINE
1235 UdtSourceLine:
1236 UDT: 4181
1237 SourceFile: 4111
1238 LineNumber: 37
1239 - Kind: LF_STRUCTURE
1240 Class:
1241 MemberCount: 0
1242 Options: [ None, ForwardReference, HasUniqueName ]
1243 FieldList: 0
1244 Name: '__vc_attributes::event_sourceAttribute'
1245 UniqueName: '.?AUevent_sourceAttribute@__vc_attributes@@'
1246 DerivationList: 0
1247 VTableShape: 0
1248 Size: 0
1249 - Kind: LF_FIELDLIST
1250 FieldList:
1251 - Kind: LF_ENUMERATE
1252 Enumerator:
1253 Attrs: 3
1254 Value: 0
1255 Name: native
1256 - Kind: LF_ENUMERATE
1257 Enumerator:
1258 Attrs: 3
1259 Value: 1
1260 Name: com
1261 - Kind: LF_ENUMERATE
1262 Enumerator:
1263 Attrs: 3
1264 Value: 2
1265 Name: managed
1266 - Kind: LF_ENUM
1267 Enum:
1268 NumEnumerators: 3
1269 Options: [ None, Nested, HasUniqueName ]
1270 FieldList: 4184
1271 Name: '__vc_attributes::event_sourceAttribute::type_e'
1272 UniqueName: '.?AW4type_e@event_sourceAttribute@__vc_attributes@@'
1273 UnderlyingType: 116
1274 - Kind: LF_UDT_SRC_LINE
1275 UdtSourceLine:
1276 UDT: 4185
1277 SourceFile: 4111
1278 LineNumber: 1142
1279 - Kind: LF_FIELDLIST
1280 FieldList:
1281 - Kind: LF_ENUMERATE
1282 Enumerator:
1283 Attrs: 3
1284 Value: 0
1285 Name: speed
1286 - Kind: LF_ENUMERATE
1287 Enumerator:
1288 Attrs: 3
1289 Value: 1
1290 Name: size
1291 - Kind: LF_ENUM
1292 Enum:
1293 NumEnumerators: 2
1294 Options: [ None, Nested, HasUniqueName ]
1295 FieldList: 4187
1296 Name: '__vc_attributes::event_sourceAttribute::optimize_e'
1297 UniqueName: '.?AW4optimize_e@event_sourceAttribute@__vc_attributes@@'
1298 UnderlyingType: 116
1299 - Kind: LF_UDT_SRC_LINE
1300 UdtSourceLine:
1301 UDT: 4188
1302 SourceFile: 4111
1303 LineNumber: 1145
1304 - Kind: LF_ARGLIST
1305 ArgList:
1306 ArgIndices: [ 4185 ]
1307 - Kind: LF_POINTER
1308 Pointer:
1309 ReferentType: 4183
1310 Attrs: 66572
1311 - Kind: LF_MFUNCTION
1312 MemberFunction:
1313 ReturnType: 3
1314 ClassType: 4183
1315 ThisType: 4191
1316 CallConv: NearC
1317 Options: [ None, Constructor ]
1318 ParameterCount: 1
1319 ArgumentList: 4190
1320 ThisPointerAdjustment: 0
1321 - Kind: LF_MFUNCTION
1322 MemberFunction:
1323 ReturnType: 3
1324 ClassType: 4183
1325 ThisType: 4191
1326 CallConv: NearC
1327 Options: [ None, Constructor ]
1328 ParameterCount: 0
1329 ArgumentList: 4105
1330 ThisPointerAdjustment: 0
1331 - Kind: LF_METHODLIST
1332 MethodOverloadList:
1333 Methods:
1334 - Type: 4192
1335 Attrs: 3
1336 VFTableOffset: -1
1337 Name: ''
1338 - Type: 4193
1339 Attrs: 3
1340 VFTableOffset: -1
1341 Name: ''
1342 - Kind: LF_FIELDLIST
1343 FieldList:
1344 - Kind: LF_NESTTYPE
1345 NestedType:
1346 Type: 4185
1347 Name: type_e
1348 - Kind: LF_NESTTYPE
1349 NestedType:
1350 Type: 4188
1351 Name: optimize_e
1352 - Kind: LF_METHOD
1353 OverloadedMethod:
1354 NumOverloads: 2
1355 MethodList: 4194
1356 Name: event_sourceAttribute
1357 - Kind: LF_MEMBER
1358 DataMember:
1359 Attrs: 3
1360 Type: 4185
1361 FieldOffset: 0
1362 Name: type
1363 - Kind: LF_MEMBER
1364 DataMember:
1365 Attrs: 3
1366 Type: 4188
1367 FieldOffset: 4
1368 Name: optimize
1369 - Kind: LF_MEMBER
1370 DataMember:
1371 Attrs: 3
1372 Type: 48
1373 FieldOffset: 8
1374 Name: decorate
1375 - Kind: LF_STRUCTURE
1376 Class:
1377 MemberCount: 7
1378 Options: [ None, HasConstructorOrDestructor, ContainsNestedClass, HasUniqueName ]
1379 FieldList: 4195
1380 Name: '__vc_attributes::event_sourceAttribute'
1381 UniqueName: '.?AUevent_sourceAttribute@__vc_attributes@@'
1382 DerivationList: 0
1383 VTableShape: 0
1384 Size: 12
1385 - Kind: LF_UDT_SRC_LINE
1386 UdtSourceLine:
1387 UDT: 4196
1388 SourceFile: 4111
1389 LineNumber: 1141
1390 - Kind: LF_STRING_ID
1391 StringId:
1392 Id: 0
1393 String: 'C:\src\llvm-project\build'
1394 - Kind: LF_STRING_ID
1395 StringId:
1396 Id: 0
1397 String: 'C:\PROGRA~2\MICROS~1\2017\PROFES~1\VC\Tools\MSVC\14.11.25503\bin\HostX64\x64\cl.exe'
1398 - Kind: LF_STRING_ID
1399 StringId:
1400 Id: 0
1401 String: '-c -Z7 -MT -IC:\PROGRA~2\MICROS~1\2017\PROFES~1\VC\Tools\MSVC\14.11.25503\ATLMFC\include -IC:\PROGRA~2\MICROS~1\2017\PROFES~1\VC\Tools\MSVC\14.11.25503\include -IC:\PROGRA~2\WI3CF2~1\10\include\10.0.16299.0\ucrt -IC:\PROGRA~2\WI3CF2~1\10\include\10.0.16299.0\'
1402 - Kind: LF_SUBSTR_LIST
1403 StringList:
1404 StringIndices: [ 4200 ]
1405 - Kind: LF_STRING_ID
1406 StringId:
1407 Id: 4201
1408 String: 'shared -IC:\PROGRA~2\WI3CF2~1\10\include\10.0.16299.0\um -IC:\PROGRA~2\WI3CF2~1\10\include\10.0.16299.0\winrt -TP -X'
1409 - Kind: LF_STRING_ID
1410 StringId:
1411 Id: 0
1412 String: t.cpp
1413 - Kind: LF_STRING_ID
1414 StringId:
1415 Id: 0
1416 String: 'C:\src\llvm-project\build\vc140.pdb'
1417 - Kind: LF_BUILDINFO
1418 BuildInfo:
1419 ArgIndices: [ 4198, 4199, 4203, 4204, 4202 ]
1420 - Name: '.text$mn'
1421 Characteristics: [ IMAGE_SCN_CNT_CODE, IMAGE_SCN_MEM_EXECUTE, IMAGE_SCN_MEM_READ ]
1422 Alignment: 16
1423 SectionData: 48894C240833C0C3CCCCCCCCCCCCCCCC4883EC38B904000000E8000000004889442420488B4424204883C438C3
1424 Relocations:
1425 - VirtualAddress: 26
1426 SymbolName: '??2@YAPEAX_K@Z'
1427 Type: IMAGE_REL_AMD64_REL32
1428 - Name: .xdata
1429 Characteristics: [ IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_READ ]
1430 Alignment: 4
1431 SectionData: '0104010004620000'
1432 - Name: .pdata
1433 Characteristics: [ IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_READ ]
1434 Alignment: 4
1435 SectionData: 000000001D00000000000000
1436 Relocations:
1437 - VirtualAddress: 0
1438 SymbolName: '$LN3'
1439 Type: IMAGE_REL_AMD64_ADDR32NB
1440 - VirtualAddress: 4
1441 SymbolName: '$LN3'
1442 Type: IMAGE_REL_AMD64_ADDR32NB
1443 - VirtualAddress: 8
1444 SymbolName: '$unwind$f'
1445 Type: IMAGE_REL_AMD64_ADDR32NB
1446symbols:
1447 - Name: '@comp.id'
1448 Value: 17130404
1449 SectionNumber: -1
1450 SimpleType: IMAGE_SYM_TYPE_NULL
1451 ComplexType: IMAGE_SYM_DTYPE_NULL
1452 StorageClass: IMAGE_SYM_CLASS_STATIC
1453 - Name: '@feat.00'
1454 Value: 2147484048
1455 SectionNumber: -1
1456 SimpleType: IMAGE_SYM_TYPE_NULL
1457 ComplexType: IMAGE_SYM_DTYPE_NULL
1458 StorageClass: IMAGE_SYM_CLASS_STATIC
1459 - Name: .drectve
1460 Value: 0
1461 SectionNumber: 1
1462 SimpleType: IMAGE_SYM_TYPE_NULL
1463 ComplexType: IMAGE_SYM_DTYPE_NULL
1464 StorageClass: IMAGE_SYM_CLASS_STATIC
1465 SectionDefinition:
1466 Length: 57
1467 NumberOfRelocations: 0
1468 NumberOfLinenumbers: 0
1469 CheckSum: 1455566745
1470 Number: 0
1471 - Name: '.debug$S'
1472 Value: 0
1473 SectionNumber: 2
1474 SimpleType: IMAGE_SYM_TYPE_NULL
1475 ComplexType: IMAGE_SYM_DTYPE_NULL
1476 StorageClass: IMAGE_SYM_CLASS_STATIC
1477 SectionDefinition:
1478 Length: 1364
1479 NumberOfRelocations: 10
1480 NumberOfLinenumbers: 0
1481 CheckSum: 0
1482 Number: 0
1483 - Name: '.debug$T'
1484 Value: 0
1485 SectionNumber: 3
1486 SimpleType: IMAGE_SYM_TYPE_NULL
1487 ComplexType: IMAGE_SYM_DTYPE_NULL
1488 StorageClass: IMAGE_SYM_CLASS_STATIC
1489 SectionDefinition:
1490 Length: 6560
1491 NumberOfRelocations: 0
1492 NumberOfLinenumbers: 0
1493 CheckSum: 0
1494 Number: 0
1495 - Name: '.text$mn'
1496 Value: 0
1497 SectionNumber: 4
1498 SimpleType: IMAGE_SYM_TYPE_NULL
1499 ComplexType: IMAGE_SYM_DTYPE_NULL
1500 StorageClass: IMAGE_SYM_CLASS_STATIC
1501 SectionDefinition:
1502 Length: 45
1503 NumberOfRelocations: 1
1504 NumberOfLinenumbers: 0
1505 CheckSum: 1509507051
1506 Number: 0
1507 - Name: '??2@YAPEAX_K@Z'
1508 Value: 0
1509 SectionNumber: 4
1510 SimpleType: IMAGE_SYM_TYPE_NULL
1511 ComplexType: IMAGE_SYM_DTYPE_FUNCTION
1512 StorageClass: IMAGE_SYM_CLASS_EXTERNAL
1513 - Name: f
1514 Value: 16
1515 SectionNumber: 4
1516 SimpleType: IMAGE_SYM_TYPE_NULL
1517 ComplexType: IMAGE_SYM_DTYPE_FUNCTION
1518 StorageClass: IMAGE_SYM_CLASS_EXTERNAL
1519 - Name: '$LN3'
1520 Value: 16
1521 SectionNumber: 4
1522 SimpleType: IMAGE_SYM_TYPE_NULL
1523 ComplexType: IMAGE_SYM_DTYPE_NULL
1524 StorageClass: IMAGE_SYM_CLASS_LABEL
1525 - Name: .xdata
1526 Value: 0
1527 SectionNumber: 5
1528 SimpleType: IMAGE_SYM_TYPE_NULL
1529 ComplexType: IMAGE_SYM_DTYPE_NULL
1530 StorageClass: IMAGE_SYM_CLASS_STATIC
1531 SectionDefinition:
1532 Length: 8
1533 NumberOfRelocations: 0
1534 NumberOfLinenumbers: 0
1535 CheckSum: 931692337
1536 Number: 0
1537 - Name: '$unwind$f'
1538 Value: 0
1539 SectionNumber: 5
1540 SimpleType: IMAGE_SYM_TYPE_NULL
1541 ComplexType: IMAGE_SYM_DTYPE_NULL
1542 StorageClass: IMAGE_SYM_CLASS_STATIC
1543 - Name: .pdata
1544 Value: 0
1545 SectionNumber: 6
1546 SimpleType: IMAGE_SYM_TYPE_NULL
1547 ComplexType: IMAGE_SYM_DTYPE_NULL
1548 StorageClass: IMAGE_SYM_CLASS_STATIC
1549 SectionDefinition:
1550 Length: 12
1551 NumberOfRelocations: 3
1552 NumberOfLinenumbers: 0
1553 CheckSum: 3887998202
1554 Number: 0
1555 - Name: '$pdata$f'
1556 Value: 0
1557 SectionNumber: 6
1558 SimpleType: IMAGE_SYM_TYPE_NULL
1559 ComplexType: IMAGE_SYM_DTYPE_NULL
1560 StorageClass: IMAGE_SYM_CLASS_STATIC
1561...
deps/lld/test/COFF/pdb-import-gc.yaml+12-8
...@@ -1,7 +1,7 @@...@@ -1,7 +1,7 @@
1# RUN: yaml2obj %s -o %t.obj1# RUN: yaml2obj %s -o %t.obj
2# RUN: lld-link %t.obj %S/Inputs/pdb-import-gc.lib -debug -entry:main \2# RUN: lld-link %t.obj %S/Inputs/pdb-import-gc.lib -debug -entry:main \
3# RUN: -nodefaultlib -debug -out:%t.exe -pdb:%t.pdb3# RUN: -nodefaultlib -opt:ref -out:%t.exe -pdb:%t.pdb
4# RUN: llvm-pdbutil dump -symbols %t.pdb | FileCheck %s4# RUN: llvm-pdbutil dump -globals -symbols %t.pdb | FileCheck %s
55
6# This tests the case where an __imp_ chunk is discarded by linker GC. The debug6# This tests the case where an __imp_ chunk is discarded by linker GC. The debug
7# info may refer to the __imp_ symbol still.7# info may refer to the __imp_ symbol still.
...@@ -11,12 +11,16 @@...@@ -11,12 +11,16 @@
11# int discarded() { return __wc_mb_cur; }11# int discarded() { return __wc_mb_cur; }
12# int main() { return g2; }12# int main() { return g2; }
1313
14# CHECK: Symbols14# CHECK: Global Symbols
15# CHECK: ============================================================15# CHECK-NEXT: ============================================================
16# CHECK: Mod 0000 | `{{.*}}pdb-import-gc.yaml.tmp.obj`:16# CHECK-NEXT: Records
17# CHECK: 4 | S_GDATA32 [size = 32] `__imp___wc_mb_cur`17# CHECK-NEXT: 20 | S_GDATA32 [size = 32] `__imp___wc_mb_cur`
18# CHECK-NEXT: type = 0x0070 (char), addr = 0000:000018# CHECK-NEXT: type = 0x0070 (char), addr = 0000:0000
19# CHECK: Mod 0001 | `* Linker *`:19
20# CHECK: Symbols
21# CHECK-NEXT: ============================================================
22# CHECK-NEXT: Mod 0000 | `{{.*}}pdb-import-gc.yaml.tmp.obj`:
23# CHECK-NEXT: Mod 0001 | `* Linker *`:
2024
21--- !COFF25--- !COFF
22header:26header:
deps/lld/test/COFF/pdb-invalid-func-type.yaml+1-1
...@@ -7,7 +7,7 @@...@@ -7,7 +7,7 @@
7# RUN: llvm-pdbutil dump -symbols %t.pdb | FileCheck %s7# RUN: llvm-pdbutil dump -symbols %t.pdb | FileCheck %s
88
9# CHECK: Mod 0000 | `{{.*}}pdb-invalid-func-type.yaml.tmp.obj`:9# CHECK: Mod 0000 | `{{.*}}pdb-invalid-func-type.yaml.tmp.obj`:
10# CHECK: 4 | S_GPROC32_ID [size = 44] `main`10# CHECK: 4 | S_GPROC32 [size = 44] `main`
11# CHECK: parent = 0, end = 80, addr = 0001:0000, code size = 311# CHECK: parent = 0, end = 80, addr = 0001:0000, code size = 3
12# CHECK: 48 | S_FRAMEPROC [size = 32]12# CHECK: 48 | S_FRAMEPROC [size = 32]
13# CHECK: 80 | S_END [size = 4]13# CHECK: 80 | S_END [size = 4]
deps/lld/test/COFF/pdb-lib.s+3-3
...@@ -11,15 +11,15 @@...@@ -11,15 +11,15 @@
1111
12# CHECK: Modules12# CHECK: Modules
13# CHECK-NEXT: ============================================================13# CHECK-NEXT: ============================================================
14# CHECK-NEXT: Mod 0000 | Name: `{{.*pdb-lib.s.tmp[/\\]foo.obj}}`:14# CHECK-NEXT: Mod 0000 | `{{.*pdb-lib.s.tmp[/\\]foo.obj}}`:
15# CHECK-NEXT: Obj: `{{.*pdb-lib.s.tmp[/\\]foo.obj}}`:15# CHECK-NEXT: Obj: `{{.*pdb-lib.s.tmp[/\\]foo.obj}}`:
16# CHECK-NEXT: debug stream: 9, # files: 0, has ec info: false16# CHECK-NEXT: debug stream: 9, # files: 0, has ec info: false
17# CHECK-NEXT: pdb file ni: 0 ``, src file ni: 0 ``17# CHECK-NEXT: pdb file ni: 0 ``, src file ni: 0 ``
18# CHECK-NEXT: Mod 0001 | Name: `bar.obj`:18# CHECK-NEXT: Mod 0001 | `bar.obj`:
19# CHECK-NEXT: Obj: `{{.*pdb-lib.s.tmp[/\\]bar.lib}}`:19# CHECK-NEXT: Obj: `{{.*pdb-lib.s.tmp[/\\]bar.lib}}`:
20# CHECK-NEXT: debug stream: 10, # files: 0, has ec info: false20# CHECK-NEXT: debug stream: 10, # files: 0, has ec info: false
21# CHECK-NEXT: pdb file ni: 0 ``, src file ni: 0 ``21# CHECK-NEXT: pdb file ni: 0 ``, src file ni: 0 ``
22# CHECK-NEXT: Mod 0002 | Name: `* Linker *`:22# CHECK-NEXT: Mod 0002 | `* Linker *`:
23# CHECK-NEXT: Obj: ``:23# CHECK-NEXT: Obj: ``:
24# CHECK-NEXT: debug stream: 11, # files: 0, has ec info: false24# CHECK-NEXT: debug stream: 11, # files: 0, has ec info: false
25# CHECK-NEXT: pdb file ni: 1 `{{.*foo.pdb}}`, src file ni: 0 ``25# CHECK-NEXT: pdb file ni: 1 `{{.*foo.pdb}}`, src file ni: 0 ``
deps/lld/test/COFF/pdb-linker-module.test+22-16
...@@ -1,18 +1,24 @@...@@ -1,18 +1,24 @@
1RUN: lld-link /debug /pdb:%t.pdb /nodefaultlib /entry:main %S/Inputs/pdb-diff.obj1RUN: lld-link /debug /pdb:%t.pdb /nodefaultlib /entry:main %S/Inputs/pdb-diff.obj
2RUN: llvm-pdbutil dump -modules -symbols %t.pdb | FileCheck %s2RUN: llvm-pdbutil dump -modules %t.pdb | FileCheck --check-prefix=MODS %s
3RUN: llvm-pdbutil dump -symbols %t.pdb | FileCheck --check-prefix=SYMS %s
34
4CHECK: Mod 0001 | `* Linker *`:5MODS: Mod 0001 | `* Linker *`
5CHECK-NEXT: 4 | S_OBJNAME [size = 20] sig=0, `* Linker *`6MODS-NEXT: Obj: ``:
6CHECK-NEXT: 24 | S_COMPILE3 [size = 40]7MODS-NEXT: debug stream: 10, # files: 0, has ec info: false
7CHECK-NEXT: machine = intel 80386, Ver = LLVM Linker, language = link8MODS-NEXT: pdb file ni: 1 `{{.*}}pdb-linker-module.test.tmp.pdb`, src file ni: 0 ``
8CHECK-NEXT: frontend = 0.0.0.0, backend = 0.0.0.09
9CHECK-NEXT: flags = none10SYMS: Mod 0001 | `* Linker *`
10CHECK-NEXT: 64 | S_ENVBLOCK11SYMS-NEXT: 4 | S_OBJNAME [size = 20] sig=0, `* Linker *`
11CHECK-NEXT: - cwd12SYMS-NEXT: 24 | S_COMPILE3 [size = 40]
12CHECK-NEXT: -13SYMS-NEXT: machine = intel 80386, Ver = LLVM Linker, language = link
13CHECK-NEXT: - exe14SYMS-NEXT: frontend = 0.0.0.0, backend = 14.10.25019.0
14CHECK-NEXT: - {{.*}}lld-link15SYMS-NEXT: flags = none
15CHECK-NEXT: - pdb16SYMS-NEXT: 64 | S_ENVBLOCK
16CHECK-NEXT: - {{.*}}pdb-linker-module{{.*}}pdb17SYMS-NEXT: - cwd
17CHECK-NEXT: - cmd18SYMS-NEXT: -
18CHECK-NEXT: - /debug /pdb:{{.*}}pdb-linker-module{{.*}}pdb /nodefaultlib /entry:main {{.*}}pdb-diff.obj19SYMS-NEXT: - exe
20SYMS-NEXT: - {{.*}}lld-link
21SYMS-NEXT: - pdb
22SYMS-NEXT: - {{.*}}pdb-linker-module{{.*}}pdb
23SYMS-NEXT: - cmd
24SYMS-NEXT: - /debug /pdb:{{.*}}pdb-linker-module{{.*}}pdb /nodefaultlib /entry:main {{.*}}pdb-diff.obj
deps/lld/test/COFF/pdb-none.test+2-1
...@@ -1,12 +1,13 @@...@@ -1,12 +1,13 @@
1# RUN: yaml2obj < %p/Inputs/pdb1.yaml > %t1.obj1# RUN: yaml2obj < %p/Inputs/pdb1.yaml > %t1.obj
2# RUN: yaml2obj < %p/Inputs/pdb2.yaml > %t2.obj2# RUN: yaml2obj < %p/Inputs/pdb2.yaml > %t2.obj
3# RUN: rm -f %t.pdb %t.dll
3# RUN: lld-link /debug /debugtype:pdata /pdb:%t.pdb /dll /out:%t.dll /entry:main /nodefaultlib \4# RUN: lld-link /debug /debugtype:pdata /pdb:%t.pdb /dll /out:%t.dll /entry:main /nodefaultlib \
4# RUN: %t1.obj %t2.obj5# RUN: %t1.obj %t2.obj
56
6# RUN: llvm-pdbutil pdb2yaml -pdb-stream %t.pdb | FileCheck %s7# RUN: llvm-pdbutil pdb2yaml -pdb-stream %t.pdb | FileCheck %s
78
8# CHECK: PdbStream:9# CHECK: PdbStream:
9# CHECK-NEXT: Age: 010# CHECK-NEXT: Age: 1
10# CHECK-NEXT: Guid:11# CHECK-NEXT: Guid:
11# CHECK-NEXT: Signature:12# CHECK-NEXT: Signature:
12# CHECK-NEXT: Features: [ VC140 ]13# CHECK-NEXT: Features: [ VC140 ]
deps/lld/test/COFF/pdb-options.test+1-1
...@@ -18,4 +18,4 @@...@@ -18,4 +18,4 @@
18# RUN: lld-link /DEBUG /entry:main /nodefaultlib %t1.obj %t2.obj18# RUN: lld-link /DEBUG /entry:main /nodefaultlib %t1.obj %t2.obj
19# RUN: ls %t1.pdb19# RUN: ls %t1.pdb
20# RUN: rm %t*20# RUN: rm %t*
21# RUN: cd %T/.. 21# RUN: cd %T/..
deps/lld/test/COFF/pdb-procid-remapping.test created+29
...@@ -0,0 +1,29 @@
1# RUN: yaml2obj < %p/Inputs/pdb1.yaml > %t1.obj
2# RUN: yaml2obj < %p/Inputs/pdb2.yaml > %t2.obj
3# RUN: lld-link /debug /pdb:%t.pdb /dll /out:%t.dll /entry:main /nodefaultlib \
4# RUN: %t1.obj %t2.obj
5
6# RUN: llvm-pdbutil dump -symbols %t.pdb | FileCheck %s
7
8CHECK: Symbols
9CHECK-NEXT: ============================================================
10CHECK-LABEL: Mod 0000 |
11CHECK: 92 | S_GPROC32 [size = 44] `main`
12CHECK-NEXT: parent = 0, end = 168, addr = 0002:0000, code size = 14
13CHECK-NEXT: type = `0x1004 (int (<no type>))`, debug start = 4, debug end = 9, flags = none
14CHECK-NEXT: 136 | S_FRAMEPROC [size = 32]
15CHECK-NEXT: size = 40, padding size = 0, offset to padding = 0
16CHECK-NEXT: bytes of callee saved registers = 0, exception handler addr = 0000:0000
17CHECK-NEXT: flags = has async eh | opt speed
18CHECK-NEXT: 168 | S_END [size = 4]
19CHECK-LABEL: Mod 0001 |
20CHECK: 92 | S_GPROC32 [size = 44] `foo`
21CHECK-NEXT: parent = 0, end = 168, addr = 0002:0016, code size = 6
22CHECK-NEXT: type = `0x1001 (int ())`, debug start = 0, debug end = 5, flags = none
23CHECK-NEXT: 136 | S_FRAMEPROC [size = 32]
24CHECK-NEXT: size = 0, padding size = 0, offset to padding = 0
25CHECK-NEXT: bytes of callee saved registers = 0, exception handler addr = 0000:0000
26CHECK-NEXT: flags = has async eh | opt speed
27CHECK-NEXT: 168 | S_END [size = 4]
28CHECK-LABEL: Mod 0002 |
29CHECK: 4 | S_OBJNAME [size = 20] sig=0, `* Linker *`
deps/lld/test/COFF/pdb-publics-import.test created+42
...@@ -0,0 +1,42 @@
1Make a DLL that exports a few functions, then make a DLL with PDBs that imports
2them. Check that the __imp_ pointer and the generated thunks appear in the
3publics stream.
4
5RUN: yaml2obj < %p/Inputs/export.yaml > %t1.obj
6RUN: lld-link /out:%t1.dll /dll %t1.obj /implib:%t1.lib \
7RUN: /export:exportfn1 /export:exportfn2
8RUN: yaml2obj < %p/Inputs/import.yaml > %t2.obj
9RUN: lld-link /out:%t2.exe /pdb:%t2.pdb /debug /entry:main %t2.obj %t1.lib
10RUN: llvm-pdbutil dump %t2.pdb -publics -section-contribs | FileCheck %s
11
12CHECK: Public Symbols
13CHECK-NEXT: ============================================================
14CHECK-NEXT: Records
15CHECK-NEXT: 112 | S_PUB32 [size = 20] `main`
16CHECK-NEXT: flags = function, addr = 0001:0000
17CHECK-NEXT: 64 | S_PUB32 [size = 24] `exportfn1`
18CHECK-NEXT: flags = function, addr = 0001:0016
19CHECK-NEXT: 88 | S_PUB32 [size = 24] `exportfn2`
20CHECK-NEXT: flags = function, addr = 0001:0032
21CHECK-NEXT: 32 | S_PUB32 [size = 32] `__imp_exportfn2`
22CHECK-NEXT: flags = none, addr = 0003:0072
23CHECK-NEXT: 0 | S_PUB32 [size = 32] `__imp_exportfn1`
24CHECK-NEXT: flags = none, addr = 0003:0064
25
26CHECK: Section Contributions
27CHECK-NEXT: ============================================================
28 main
29CHECK-NEXT: SC[.text] | mod = 0, 0001:0000, size = 8, data crc = 0, reloc crc = 0
30CHECK-NEXT: IMAGE_SCN_CNT_CODE | IMAGE_SCN_ALIGN_4BYTES | IMAGE_SCN_MEM_EXECUTE |
31CHECK-NEXT: IMAGE_SCN_MEM_READ
32 exportfn1 thunk
33CHECK-NEXT: SC[.text] | mod = 1, 0001:0016, size = 6, data crc = 0, reloc crc = 0
34CHECK-NEXT: IMAGE_SCN_CNT_CODE | IMAGE_SCN_MEM_EXECUTE | IMAGE_SCN_MEM_READ
35 exportfn2 thunk
36CHECK-NEXT: SC[.text] | mod = 1, 0001:0032, size = 6, data crc = 0, reloc crc = 0
37CHECK-NEXT: IMAGE_SCN_CNT_CODE | IMAGE_SCN_MEM_EXECUTE | IMAGE_SCN_MEM_READ
38 .rdata debug directory data chunks
39CHECK-NEXT: SC[.rdata] | mod = 1, 0002:0000, size = 28, data crc = 0, reloc crc = 0
40CHECK-NEXT: IMAGE_SCN_CNT_INITIALIZED_DATA | IMAGE_SCN_MEM_READ
41CHECK-NEXT: SC[.rdata] | mod = 1, 0002:0028, size = {{.*}}, data crc = 0, reloc crc = 0
42CHECK-NEXT: IMAGE_SCN_CNT_INITIALIZED_DATA | IMAGE_SCN_MEM_READ
deps/lld/test/COFF/pdb-safeseh.yaml+6-5
...@@ -1,16 +1,17 @@...@@ -1,16 +1,17 @@
1# RUN: yaml2obj %s -o %t.obj1# RUN: yaml2obj %s -o %t.obj
2# RUN: lld-link -debug -entry:main -out:%t.exe -pdb:%t.pdb %t.obj2# RUN: lld-link -debug -entry:main -out:%t.exe -pdb:%t.pdb %t.obj
3# RUN: llvm-pdbutil dump -symbols %t.pdb | FileCheck %s3# RUN: llvm-pdbutil dump -globals %t.pdb | FileCheck %s
44
5# There is an S_GDATA32 symbol record with .secrel32 and .secidx relocations in5# There is an S_GDATA32 symbol record with .secrel32 and .secidx relocations in
6# it in this debug info. This is similar to the relocations in the loadcfg.obj6# it in this debug info. This is similar to the relocations in the loadcfg.obj
7# file in the MSVC CRT. We need to make sure that our relocation logic matches7# file in the MSVC CRT. We need to make sure that our relocation logic matches
8# MSVC's for these absolute, linker-provided symbols.8# MSVC's for these absolute, linker-provided symbols.
99
10# CHECK: Mod 0000 |10# CHECK: Global Symbols
11# CHECK-NEXT: 4 | S_GDATA32 [size = 40] `___safe_se_handler_table`11# CHECK-NEXT: ============================================================
12# CHECK-NEXT: type = 0x0022 (unsigned long), addr = 0003:000012# CHECK-NEXT: Records
13# CHECK-NEXT: Mod 0001 | `* Linker *`:13# CHECK-NEXT: 20 | S_GDATA32 [size = 40] `___safe_se_handler_table`
14# CHECK-NEXT: type = 0x0022 (unsigned long), addr = 0003:0000
1415
15--- !COFF16--- !COFF
16header:17header:
deps/lld/test/COFF/pdb-same-name.test created+23
...@@ -0,0 +1,23 @@
1# RUN: rm -rf %t1 %t2
2# RUN: mkdir %t1 %t2
3# RUN: yaml2obj < %p/Inputs/pdb1.yaml > %t1/foo.obj
4# RUN: llvm-ar cru %t1/foo.lib %t1/foo.obj
5# RUN: yaml2obj < %p/Inputs/pdb2.yaml > %t2/foo.obj
6# RUN: llvm-ar cru %t2/foo.lib %t2/foo.obj
7
8# RUN: rm -f %t.dll %t.pdb
9# RUN: lld-link /debug /pdb:%t.pdb /dll /out:%t.dll /entry:main /nodefaultlib \
10# RUN: %t1/foo.lib %t2/foo.lib
11
12# RUN: llvm-pdbutil dump -modules %t.pdb | FileCheck -check-prefix RAW %s
13
14RAW: Modules
15RAW-NEXT: ============================================================
16RAW-NEXT: Mod 0000 | `foo.obj`:
17RAW-NEXT: Obj: `{{.*}}1\foo.lib`:
18RAW-NEXT: debug stream: 9, # files: 1, has ec info: false
19RAW-NEXT: pdb file ni: 0 ``, src file ni: 0 ``
20RAW-NEXT: Mod 0001 | `foo.obj`:
21RAW-NEXT: Obj: `{{.*}}2\foo.lib`:
22RAW-NEXT: debug stream: 10, # files: 1, has ec info: false
23RAW-NEXT: pdb file ni: 0 ``, src file ni: 0 ``
deps/lld/test/COFF/pdb-scopes.test+3-3
...@@ -34,12 +34,12 @@ RUN: lld-link %t-a.obj %t-b.obj -debug -entry:main -nodefaultlib -out:%t.exe -pd...@@ -34,12 +34,12 @@ RUN: lld-link %t-a.obj %t-b.obj -debug -entry:main -nodefaultlib -out:%t.exe -pd
34RUN: llvm-pdbutil dump -symbols %t.pdb | FileCheck %s34RUN: llvm-pdbutil dump -symbols %t.pdb | FileCheck %s
3535
36CHECK-LABEL: Mod 0000 | `{{.*}}pdb-scopes.test.tmp-a.obj`:36CHECK-LABEL: Mod 0000 | `{{.*}}pdb-scopes.test.tmp-a.obj`:
37CHECK: 104 | S_GPROC32_ID [size = 44] `g`37CHECK: 104 | S_GPROC32 [size = 44] `g`
38CHECK: parent = 0, end = 196, addr = 0002:0000, code size = 538CHECK: parent = 0, end = 196, addr = 0002:0000, code size = 5
39CHECK: debug start = 4, debug end = 4, flags = none39CHECK: debug start = 4, debug end = 4, flags = none
40CHECK: 180 | S_REGREL32 [size = 16] `x`40CHECK: 180 | S_REGREL32 [size = 16] `x`
41CHECK: 196 | S_END [size = 4]41CHECK: 196 | S_END [size = 4]
42CHECK: 200 | S_GPROC32_ID [size = 44] `main`42CHECK: 200 | S_GPROC32 [size = 44] `main`
43CHECK: parent = 0, end = 384, addr = 0002:0016, code size = 5843CHECK: parent = 0, end = 384, addr = 0002:0016, code size = 58
44CHECK: debug start = 8, debug end = 53, flags = none44CHECK: debug start = 8, debug end = 53, flags = none
45CHECK: 276 | S_REGREL32 [size = 20] `argc`45CHECK: 276 | S_REGREL32 [size = 20] `argc`
...@@ -56,7 +56,7 @@ CHECK: 380 | S_END [size = 4]...@@ -56,7 +56,7 @@ CHECK: 380 | S_END [size = 4]
56CHECK: 384 | S_END [size = 4]56CHECK: 384 | S_END [size = 4]
5757
58CHECK-LABEL: Mod 0001 | `{{.*}}pdb-scopes.test.tmp-b.obj`:58CHECK-LABEL: Mod 0001 | `{{.*}}pdb-scopes.test.tmp-b.obj`:
59CHECK: 104 | S_GPROC32_ID [size = 44] `f`59CHECK: 104 | S_GPROC32 [size = 44] `f`
60CHECK: parent = 0, end = 284, addr = 0002:0080, code size = 6260CHECK: parent = 0, end = 284, addr = 0002:0080, code size = 62
61CHECK: debug start = 8, debug end = 57, flags = none61CHECK: debug start = 8, debug end = 57, flags = none
62CHECK: 180 | S_REGREL32 [size = 16] `x`62CHECK: 180 | S_REGREL32 [size = 16] `x`
deps/lld/test/COFF/pdb-secrel-absolute.yaml+6-5
...@@ -1,16 +1,17 @@...@@ -1,16 +1,17 @@
1# RUN: yaml2obj %s -o %t.obj1# RUN: yaml2obj %s -o %t.obj
2# RUN: lld-link -debug -entry:main -out:%t.exe -pdb:%t.pdb %t.obj2# RUN: lld-link -debug -entry:main -out:%t.exe -pdb:%t.pdb %t.obj
3# RUN: llvm-pdbutil dump -symbols %t.pdb | FileCheck %s3# RUN: llvm-pdbutil dump -globals %t.pdb | FileCheck %s
44
5# There is an S_GDATA32 symbol record with .secrel32 and .secidx relocations in5# There is an S_GDATA32 symbol record with .secrel32 and .secidx relocations in
6# it in this debug info. This is similar to the relocations in the loadcfg.obj6# it in this debug info. This is similar to the relocations in the loadcfg.obj
7# file in the MSVC CRT. We need to make sure that our relocation logic matches7# file in the MSVC CRT. We need to make sure that our relocation logic matches
8# MSVC's for these absolute, linker-provided symbols.8# MSVC's for these absolute, linker-provided symbols.
99
10# CHECK: Mod 0000 |10# CHECK: Global Symbols
11# CHECK-NEXT: 4 | S_GDATA32 [size = 36] `__guard_fids_table`11# CHECK-NEXT: ============================================================
12# CHECK-NEXT: type = 0x0022 (unsigned long), addr = 0003:000012# CHECK-NEXT: Records
13# CHECK-NEXT: Mod 0001 | `* Linker *`:13# CHECK-NEXT: 20 | S_GDATA32 [size = 36] `__guard_fids_table`
14# CHECK-NEXT: type = 0x0022 (unsigned long), addr = 0003:0000
1415
15--- !COFF16--- !COFF
16header:17header:
deps/lld/test/COFF/pdb-source-lines.test+18-17
...@@ -19,10 +19,11 @@ $ cl -c -Z7 pdb_lines*.c...@@ -19,10 +19,11 @@ $ cl -c -Z7 pdb_lines*.c
1919
20RUN: yaml2obj %S/Inputs/pdb_lines_1.yaml -o %t.pdb_lines_1.obj20RUN: yaml2obj %S/Inputs/pdb_lines_1.yaml -o %t.pdb_lines_1.obj
21RUN: yaml2obj %S/Inputs/pdb_lines_2.yaml -o %t.pdb_lines_2.obj21RUN: yaml2obj %S/Inputs/pdb_lines_2.yaml -o %t.pdb_lines_2.obj
22RUN: rm -f %t.exe %t.pdb
22RUN: lld-link -debug -entry:main -nodefaultlib -out:%t.exe -pdb:%t.pdb %t.pdb_lines_1.obj %t.pdb_lines_2.obj23RUN: lld-link -debug -entry:main -nodefaultlib -out:%t.exe -pdb:%t.pdb %t.pdb_lines_1.obj %t.pdb_lines_2.obj
23RUN: llvm-pdbutil pdb2yaml -modules -module-files -subsections=lines,fc %t.pdb | FileCheck %s24RUN: llvm-pdbutil pdb2yaml -modules -module-files -subsections=lines,fc %t.pdb | FileCheck %s
2425
25CHECK-LABEL: DbiStream: 26CHECK-LABEL: DbiStream:
26CHECK-NEXT: VerHeader: V7027CHECK-NEXT: VerHeader: V70
27CHECK-NEXT: Age: 128CHECK-NEXT: Age: 1
28CHECK-NEXT: BuildNumber: 029CHECK-NEXT: BuildNumber: 0
...@@ -30,22 +31,22 @@ CHECK-NEXT: PdbDllVersion: 0...@@ -30,22 +31,22 @@ CHECK-NEXT: PdbDllVersion: 0
30CHECK-NEXT: PdbDllRbld: 031CHECK-NEXT: PdbDllRbld: 0
31CHECK-NEXT: Flags: 032CHECK-NEXT: Flags: 0
32CHECK-NEXT: MachineType: x8633CHECK-NEXT: MachineType: x86
33CHECK-NEXT: Modules: 34CHECK-NEXT: Modules:
3435
35CHECK-LABEL: - Module: {{.*}}pdb_lines_1.obj36CHECK-LABEL: - Module: {{.*}}pdb_lines_1.obj
36CHECK-NEXT: ObjFile: {{.*}}pdb_lines_1.obj37CHECK-NEXT: ObjFile: {{.*}}pdb_lines_1.obj
37CHECK-NEXT: SourceFiles: 38CHECK-NEXT: SourceFiles:
38CHECK-NEXT: - '{{.*}}pdb_lines_1.c'39CHECK-NEXT: - '{{.*}}pdb_lines_1.c'
39CHECK-NEXT: - '{{.*}}foo.h'40CHECK-NEXT: - '{{.*}}foo.h'
40CHECK-NEXT: Subsections: 41CHECK-NEXT: Subsections:
41CHECK-NEXT: - !Lines42CHECK-NEXT: - !Lines
42CHECK-NEXT: CodeSize: 1943CHECK-NEXT: CodeSize: 19
43CHECK-NEXT: Flags: [ ]44CHECK-NEXT: Flags: [ ]
44CHECK-NEXT: RelocOffset: 045CHECK-NEXT: RelocOffset: 0
45CHECK-NEXT: RelocSegment: 246CHECK-NEXT: RelocSegment: 2
46CHECK-NEXT: Blocks: 47CHECK-NEXT: Blocks:
47CHECK-NEXT: - FileName: '{{.*}}pdb_lines_1.c'48CHECK-NEXT: - FileName: '{{.*}}pdb_lines_1.c'
48CHECK-NEXT: Lines: 49CHECK-NEXT: Lines:
49CHECK-NEXT: - Offset: 050CHECK-NEXT: - Offset: 0
50CHECK-NEXT: LineStart: 251CHECK-NEXT: LineStart: 2
51CHECK-NEXT: IsStatement: true52CHECK-NEXT: IsStatement: true
...@@ -62,9 +63,9 @@ CHECK-NEXT: - Offset: 14...@@ -62,9 +63,9 @@ CHECK-NEXT: - Offset: 14
62CHECK-NEXT: LineStart: 563CHECK-NEXT: LineStart: 5
63CHECK-NEXT: IsStatement: true64CHECK-NEXT: IsStatement: true
64CHECK-NEXT: EndDelta: 065CHECK-NEXT: EndDelta: 0
65CHECK-NEXT: Columns: 66CHECK-NEXT: Columns:
66CHECK-NEXT: - !FileChecksums67CHECK-NEXT: - !FileChecksums
67CHECK-NEXT: Checksums: 68CHECK-NEXT: Checksums:
68CHECK-NEXT: - FileName: '{{.*}}pdb_lines_1.c'69CHECK-NEXT: - FileName: '{{.*}}pdb_lines_1.c'
69CHECK-NEXT: Kind: MD570CHECK-NEXT: Kind: MD5
70CHECK-NEXT: Checksum: 4EB19DCD86C3BA2238A255C718572E7B71CHECK-NEXT: Checksum: 4EB19DCD86C3BA2238A255C718572E7B
...@@ -76,9 +77,9 @@ CHECK-NEXT: CodeSize: 14...@@ -76,9 +77,9 @@ CHECK-NEXT: CodeSize: 14
76CHECK-NEXT: Flags: [ ]77CHECK-NEXT: Flags: [ ]
77CHECK-NEXT: RelocOffset: 3278CHECK-NEXT: RelocOffset: 32
78CHECK-NEXT: RelocSegment: 279CHECK-NEXT: RelocSegment: 2
79CHECK-NEXT: Blocks: 80CHECK-NEXT: Blocks:
80CHECK-NEXT: - FileName: '{{.*}}foo.h'81CHECK-NEXT: - FileName: '{{.*}}foo.h'
81CHECK-NEXT: Lines: 82CHECK-NEXT: Lines:
82CHECK-NEXT: - Offset: 083CHECK-NEXT: - Offset: 0
83CHECK-NEXT: LineStart: 284CHECK-NEXT: LineStart: 2
84CHECK-NEXT: IsStatement: true85CHECK-NEXT: IsStatement: true
...@@ -91,21 +92,21 @@ CHECK-NEXT: - Offset: 9...@@ -91,21 +92,21 @@ CHECK-NEXT: - Offset: 9
91CHECK-NEXT: LineStart: 492CHECK-NEXT: LineStart: 4
92CHECK-NEXT: IsStatement: true93CHECK-NEXT: IsStatement: true
93CHECK-NEXT: EndDelta: 094CHECK-NEXT: EndDelta: 0
94CHECK-NEXT: Columns: 95CHECK-NEXT: Columns:
9596
96CHECK-LABEL: - Module: {{.*}}pdb_lines_2.obj97CHECK-LABEL: - Module: {{.*}}pdb_lines_2.obj
97CHECK-NEXT: ObjFile: {{.*}}pdb_lines_2.obj98CHECK-NEXT: ObjFile: {{.*}}pdb_lines_2.obj
98CHECK-NEXT: SourceFiles: 99CHECK-NEXT: SourceFiles:
99CHECK-NEXT: - '{{.*}}pdb_lines_2.c'100CHECK-NEXT: - '{{.*}}pdb_lines_2.c'
100CHECK-NEXT: Subsections: 101CHECK-NEXT: Subsections:
101CHECK-NEXT: - !Lines102CHECK-NEXT: - !Lines
102CHECK-NEXT: CodeSize: 1103CHECK-NEXT: CodeSize: 1
103CHECK-NEXT: Flags: [ ]104CHECK-NEXT: Flags: [ ]
104CHECK-NEXT: RelocOffset: 48105CHECK-NEXT: RelocOffset: 48
105CHECK-NEXT: RelocSegment: 2106CHECK-NEXT: RelocSegment: 2
106CHECK-NEXT: Blocks: 107CHECK-NEXT: Blocks:
107CHECK-NEXT: - FileName: '{{.*}}pdb_lines_2.c'108CHECK-NEXT: - FileName: '{{.*}}pdb_lines_2.c'
108CHECK-NEXT: Lines: 109CHECK-NEXT: Lines:
109CHECK-NEXT: - Offset: 0110CHECK-NEXT: - Offset: 0
110CHECK-NEXT: LineStart: 1111CHECK-NEXT: LineStart: 1
111CHECK-NEXT: IsStatement: true112CHECK-NEXT: IsStatement: true
...@@ -114,9 +115,9 @@ CHECK-NEXT: - Offset: 0...@@ -114,9 +115,9 @@ CHECK-NEXT: - Offset: 0
114CHECK-NEXT: LineStart: 2115CHECK-NEXT: LineStart: 2
115CHECK-NEXT: IsStatement: true116CHECK-NEXT: IsStatement: true
116CHECK-NEXT: EndDelta: 0117CHECK-NEXT: EndDelta: 0
117CHECK-NEXT: Columns: 118CHECK-NEXT: Columns:
118CHECK-NEXT: - !FileChecksums119CHECK-NEXT: - !FileChecksums
119CHECK-NEXT: Checksums: 120CHECK-NEXT: Checksums:
120CHECK-NEXT: - FileName: '{{.*}}pdb_lines_2.c'121CHECK-NEXT: - FileName: '{{.*}}pdb_lines_2.c'
121CHECK-NEXT: Kind: MD5122CHECK-NEXT: Kind: MD5
122CHECK-NEXT: Checksum: DF91CB3A2B8D917486574BB50CAC4CC7123CHECK-NEXT: Checksum: DF91CB3A2B8D917486574BB50CAC4CC7
deps/lld/test/COFF/pdb-symbol-types.yaml+11-9
...@@ -1,6 +1,6 @@...@@ -1,6 +1,6 @@
1# RUN: yaml2obj %s -o %t.obj1# RUN: yaml2obj %s -o %t.obj
2# RUN: lld-link %t.obj -nodefaultlib -entry:main -debug -out:%t.exe -pdb:%t.pdb2# RUN: lld-link %t.obj -nodefaultlib -entry:main -debug -out:%t.exe -pdb:%t.pdb
3# RUN: llvm-pdbutil dump -symbols %t.pdb | FileCheck %s3# RUN: llvm-pdbutil dump -symbols -globals %t.pdb | FileCheck %s
44
5# To regenerate the object file:5# To regenerate the object file:
6# $ cat symbol-types.c6# $ cat symbol-types.c
...@@ -13,6 +13,14 @@...@@ -13,6 +13,14 @@
13# Note that the type of 'global' goes from 0x1005 in the object file to 0x100413# Note that the type of 'global' goes from 0x1005 in the object file to 0x1004
14# in the PDB because the LF_FUNC_ID is moved to the id stream.14# in the PDB because the LF_FUNC_ID is moved to the id stream.
1515
16# CHECK-LABEL: Global Symbols
17# CHECK-NEXT: ============================================================
18# CHECK-NEXT: Records
19# CHECK-NEXT: 48 | S_PROCREF [size = 20] `main`
20# CHECK-NEXT: module = 1, sum name = 0, offset = 116
21# CHECK-NEXT: 68 | S_GDATA32 [size = 28] `global_foo`
22# CHECK-NEXT: type = 0x1004 (Foo), addr = 0001:0000
23
16# CHECK: Symbols24# CHECK: Symbols
17# CHECK: ============================================================25# CHECK: ============================================================
18# CHECK-LABEL: Mod 0000 | `{{.*}}pdb-symbol-types.yaml.tmp.obj`:26# CHECK-LABEL: Mod 0000 | `{{.*}}pdb-symbol-types.yaml.tmp.obj`:
...@@ -21,7 +29,7 @@...@@ -21,7 +29,7 @@
21# CHECK: machine = intel x86-x64, Ver = Microsoft (R) Optimizing Compiler, language = c29# CHECK: machine = intel x86-x64, Ver = Microsoft (R) Optimizing Compiler, language = c
22# CHECK: frontend = 19.0.24215.1, backend = 19.0.24215.130# CHECK: frontend = 19.0.24215.1, backend = 19.0.24215.1
23# CHECK: flags = security checks | hot patchable31# CHECK: flags = security checks | hot patchable
24# CHECK: 116 | S_GPROC32_ID [size = 44] `main`32# CHECK: 116 | S_GPROC32 [size = 44] `main`
25# CHECK: parent = 0, end = 192, addr = 0002:0000, code size = 733# CHECK: parent = 0, end = 192, addr = 0002:0000, code size = 7
26# CHECK: debug start = 0, debug end = 6, flags = none34# CHECK: debug start = 0, debug end = 6, flags = none
27# CHECK: 160 | S_FRAMEPROC [size = 32]35# CHECK: 160 | S_FRAMEPROC [size = 32]
...@@ -29,13 +37,7 @@...@@ -29,13 +37,7 @@
29# CHECK: bytes of callee saved registers = 0, exception handler addr = 0000:000037# CHECK: bytes of callee saved registers = 0, exception handler addr = 0000:0000
30# CHECK: flags = has async eh | opt speed38# CHECK: flags = has async eh | opt speed
31# CHECK: 192 | S_END [size = 4]39# CHECK: 192 | S_END [size = 4]
32# CHECK: 196 | S_GDATA32 [size = 28] `global_foo`40# CHECK: 196 | S_BUILDINFO [size = 8] BuildId = `0x100A`
33# CHECK: type = 0x1004 (Foo), addr = 0001:0000
34# CHECK: 224 | S_UDT [size = 16] `UDT_Foo`
35# CHECK: original type = 0x1004
36# CHECK: 240 | S_UDT [size = 12] `Foo`
37# CHECK: original type = 0x1004
38# CHECK: 252 | S_BUILDINFO [size = 8] BuildId = `0x100A`
39# CHECK-LABEL: Mod 0001 | `* Linker *`:41# CHECK-LABEL: Mod 0001 | `* Linker *`:
4042
41--- !COFF43--- !COFF
deps/lld/test/COFF/pdb-thunk.yaml created+2747
...@@ -0,0 +1,2747 @@
1# RUN: yaml2obj %s -o %t.obj
2# RUN: lld-link %t.obj -dll -debug -noentry -nodefaultlib -debug -out:%t.exe -pdb:%t.pdb
3# RUN: llvm-pdbutil dump -symbols %t.pdb | FileCheck %s
4
5# We used to skip vtable thunk symbol records, leading to symbol scope stack
6# imbalances (PR35014). Test that they survive the object file into the PDB.
7
8# This object generated from this C++ source:
9# // t.cpp
10# struct A {
11# virtual int f();
12# };
13# struct B {
14# virtual int f();
15# };
16# struct C : A, B {
17# __declspec(dllexport) C();
18# int f() override;
19# int c;
20# };
21# int A::f() { return 0; }
22# int B::f() { return 0; }
23# int C::f() { return c; }
24# C::C() : c(42) {}
25
26# Compile as:
27# $ cl -GR- -Z7 -c t.cpp
28
29# CHECK: S_THUNK32
30# CHECK: S_END
31
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2353 DisplayName: 'B::`vftable'''
2354 Relocations:
2355 - VirtualAddress: 20
2356 SymbolName: '??_7B@@6B@'
2357 Type: IMAGE_REL_AMD64_SECREL
2358 - VirtualAddress: 24
2359 SymbolName: '??_7B@@6B@'
2360 Type: IMAGE_REL_AMD64_SECTION
2361 - Name: '.debug$S'
2362 Characteristics: [ IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_LNK_COMDAT, IMAGE_SCN_MEM_DISCARDABLE, IMAGE_SCN_MEM_READ ]
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2379 Characteristics: [ IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_LNK_COMDAT, IMAGE_SCN_MEM_DISCARDABLE, IMAGE_SCN_MEM_READ ]
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2392 - VirtualAddress: 24
2393 SymbolName: '??_7C@@6BB@@@'
2394 Type: IMAGE_REL_AMD64_SECTION
2395symbols:
2396 - Name: '@comp.id'
2397 Value: 17130404
2398 SectionNumber: -1
2399 SimpleType: IMAGE_SYM_TYPE_NULL
2400 ComplexType: IMAGE_SYM_DTYPE_NULL
2401 StorageClass: IMAGE_SYM_CLASS_STATIC
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2403 Value: 2147484048
2404 SectionNumber: -1
2405 SimpleType: IMAGE_SYM_TYPE_NULL
2406 ComplexType: IMAGE_SYM_DTYPE_NULL
2407 StorageClass: IMAGE_SYM_CLASS_STATIC
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2409 Value: 0
2410 SectionNumber: 1
2411 SimpleType: IMAGE_SYM_TYPE_NULL
2412 ComplexType: IMAGE_SYM_DTYPE_NULL
2413 StorageClass: IMAGE_SYM_CLASS_STATIC
2414 SectionDefinition:
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2416 NumberOfRelocations: 0
2417 NumberOfLinenumbers: 0
2418 CheckSum: 876125206
2419 Number: 0
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2421 Value: 0
2422 SectionNumber: 2
2423 SimpleType: IMAGE_SYM_TYPE_NULL
2424 ComplexType: IMAGE_SYM_DTYPE_NULL
2425 StorageClass: IMAGE_SYM_CLASS_STATIC
2426 SectionDefinition:
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2428 NumberOfRelocations: 16
2429 NumberOfLinenumbers: 0
2430 CheckSum: 0
2431 Number: 0
2432 - Name: '.debug$T'
2433 Value: 0
2434 SectionNumber: 3
2435 SimpleType: IMAGE_SYM_TYPE_NULL
2436 ComplexType: IMAGE_SYM_DTYPE_NULL
2437 StorageClass: IMAGE_SYM_CLASS_STATIC
2438 SectionDefinition:
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2440 NumberOfRelocations: 0
2441 NumberOfLinenumbers: 0
2442 CheckSum: 0
2443 Number: 0
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2454 CheckSum: 1906691115
2455 Number: 0
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2457 Value: 0
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2500 StorageClass: IMAGE_SYM_CLASS_STATIC
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2505 CheckSum: 0
2506 Number: 7
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2508 - Name: '.text$mn'
2509 Value: 0
2510 SectionNumber: 9
2511 SimpleType: IMAGE_SYM_TYPE_NULL
2512 ComplexType: IMAGE_SYM_DTYPE_NULL
2513 StorageClass: IMAGE_SYM_CLASS_STATIC
2514 SectionDefinition:
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2518 CheckSum: 3880904481
2519 Number: 0
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2522 Value: 0
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2530 NumberOfLinenumbers: 0
2531 CheckSum: 0
2532 Number: 9
2533 Selection: IMAGE_COMDAT_SELECT_ASSOCIATIVE
2534 - Name: '?f@A@@UEAAHXZ'
2535 Value: 0
2536 SectionNumber: 4
2537 SimpleType: IMAGE_SYM_TYPE_NULL
2538 ComplexType: IMAGE_SYM_DTYPE_FUNCTION
2539 StorageClass: IMAGE_SYM_CLASS_EXTERNAL
2540 - Name: '??0A@@QEAA@XZ'
2541 Value: 0
2542 SectionNumber: 5
2543 SimpleType: IMAGE_SYM_TYPE_NULL
2544 ComplexType: IMAGE_SYM_DTYPE_FUNCTION
2545 StorageClass: IMAGE_SYM_CLASS_EXTERNAL
2546 - Name: '?f@B@@UEAAHXZ'
2547 Value: 16
2548 SectionNumber: 4
2549 SimpleType: IMAGE_SYM_TYPE_NULL
2550 ComplexType: IMAGE_SYM_DTYPE_FUNCTION
2551 StorageClass: IMAGE_SYM_CLASS_EXTERNAL
2552 - Name: '??0B@@QEAA@XZ'
2553 Value: 0
2554 SectionNumber: 7
2555 SimpleType: IMAGE_SYM_TYPE_NULL
2556 ComplexType: IMAGE_SYM_DTYPE_FUNCTION
2557 StorageClass: IMAGE_SYM_CLASS_EXTERNAL
2558 - Name: '??0C@@QEAA@XZ'
2559 Value: 32
2560 SectionNumber: 4
2561 SimpleType: IMAGE_SYM_TYPE_NULL
2562 ComplexType: IMAGE_SYM_DTYPE_FUNCTION
2563 StorageClass: IMAGE_SYM_CLASS_EXTERNAL
2564 - Name: '?f@C@@UEAAHXZ'
2565 Value: 128
2566 SectionNumber: 4
2567 SimpleType: IMAGE_SYM_TYPE_NULL
2568 ComplexType: IMAGE_SYM_DTYPE_FUNCTION
2569 StorageClass: IMAGE_SYM_CLASS_EXTERNAL
2570 - Name: '?f@C@@W7EAAHXZ'
2571 Value: 0
2572 SectionNumber: 9
2573 SimpleType: IMAGE_SYM_TYPE_NULL
2574 ComplexType: IMAGE_SYM_DTYPE_FUNCTION
2575 StorageClass: IMAGE_SYM_CLASS_EXTERNAL
2576 - Name: '$LN3'
2577 Value: 32
2578 SectionNumber: 4
2579 SimpleType: IMAGE_SYM_TYPE_NULL
2580 ComplexType: IMAGE_SYM_DTYPE_NULL
2581 StorageClass: IMAGE_SYM_CLASS_LABEL
2582 - Name: .xdata
2583 Value: 0
2584 SectionNumber: 11
2585 SimpleType: IMAGE_SYM_TYPE_NULL
2586 ComplexType: IMAGE_SYM_DTYPE_NULL
2587 StorageClass: IMAGE_SYM_CLASS_STATIC
2588 SectionDefinition:
2589 Length: 8
2590 NumberOfRelocations: 0
2591 NumberOfLinenumbers: 0
2592 CheckSum: 2625142988
2593 Number: 0
2594 - Name: '$unwind$??0C@@QEAA@XZ'
2595 Value: 0
2596 SectionNumber: 11
2597 SimpleType: IMAGE_SYM_TYPE_NULL
2598 ComplexType: IMAGE_SYM_DTYPE_NULL
2599 StorageClass: IMAGE_SYM_CLASS_STATIC
2600 - Name: .pdata
2601 Value: 0
2602 SectionNumber: 12
2603 SimpleType: IMAGE_SYM_TYPE_NULL
2604 ComplexType: IMAGE_SYM_DTYPE_NULL
2605 StorageClass: IMAGE_SYM_CLASS_STATIC
2606 SectionDefinition:
2607 Length: 12
2608 NumberOfRelocations: 3
2609 NumberOfLinenumbers: 0
2610 CheckSum: 1248454893
2611 Number: 0
2612 - Name: '$pdata$??0C@@QEAA@XZ'
2613 Value: 0
2614 SectionNumber: 12
2615 SimpleType: IMAGE_SYM_TYPE_NULL
2616 ComplexType: IMAGE_SYM_DTYPE_NULL
2617 StorageClass: IMAGE_SYM_CLASS_STATIC
2618 - Name: .rdata
2619 Value: 0
2620 SectionNumber: 13
2621 SimpleType: IMAGE_SYM_TYPE_NULL
2622 ComplexType: IMAGE_SYM_DTYPE_NULL
2623 StorageClass: IMAGE_SYM_CLASS_STATIC
2624 SectionDefinition:
2625 Length: 8
2626 NumberOfRelocations: 1
2627 NumberOfLinenumbers: 0
2628 CheckSum: 0
2629 Number: 0
2630 Selection: IMAGE_COMDAT_SELECT_ANY
2631 - Name: '??_7A@@6B@'
2632 Value: 0
2633 SectionNumber: 13
2634 SimpleType: IMAGE_SYM_TYPE_NULL
2635 ComplexType: IMAGE_SYM_DTYPE_NULL
2636 StorageClass: IMAGE_SYM_CLASS_EXTERNAL
2637 - Name: .rdata
2638 Value: 0
2639 SectionNumber: 14
2640 SimpleType: IMAGE_SYM_TYPE_NULL
2641 ComplexType: IMAGE_SYM_DTYPE_NULL
2642 StorageClass: IMAGE_SYM_CLASS_STATIC
2643 SectionDefinition:
2644 Length: 8
2645 NumberOfRelocations: 1
2646 NumberOfLinenumbers: 0
2647 CheckSum: 0
2648 Number: 0
2649 Selection: IMAGE_COMDAT_SELECT_ANY
2650 - Name: '??_7B@@6B@'
2651 Value: 0
2652 SectionNumber: 14
2653 SimpleType: IMAGE_SYM_TYPE_NULL
2654 ComplexType: IMAGE_SYM_DTYPE_NULL
2655 StorageClass: IMAGE_SYM_CLASS_EXTERNAL
2656 - Name: .rdata
2657 Value: 0
2658 SectionNumber: 15
2659 SimpleType: IMAGE_SYM_TYPE_NULL
2660 ComplexType: IMAGE_SYM_DTYPE_NULL
2661 StorageClass: IMAGE_SYM_CLASS_STATIC
2662 SectionDefinition:
2663 Length: 8
2664 NumberOfRelocations: 1
2665 NumberOfLinenumbers: 0
2666 CheckSum: 0
2667 Number: 0
2668 Selection: IMAGE_COMDAT_SELECT_ANY
2669 - Name: '??_7C@@6BA@@@'
2670 Value: 0
2671 SectionNumber: 15
2672 SimpleType: IMAGE_SYM_TYPE_NULL
2673 ComplexType: IMAGE_SYM_DTYPE_NULL
2674 StorageClass: IMAGE_SYM_CLASS_EXTERNAL
2675 - Name: .rdata
2676 Value: 0
2677 SectionNumber: 16
2678 SimpleType: IMAGE_SYM_TYPE_NULL
2679 ComplexType: IMAGE_SYM_DTYPE_NULL
2680 StorageClass: IMAGE_SYM_CLASS_STATIC
2681 SectionDefinition:
2682 Length: 8
2683 NumberOfRelocations: 1
2684 NumberOfLinenumbers: 0
2685 CheckSum: 0
2686 Number: 0
2687 Selection: IMAGE_COMDAT_SELECT_ANY
2688 - Name: '??_7C@@6BB@@@'
2689 Value: 0
2690 SectionNumber: 16
2691 SimpleType: IMAGE_SYM_TYPE_NULL
2692 ComplexType: IMAGE_SYM_DTYPE_NULL
2693 StorageClass: IMAGE_SYM_CLASS_EXTERNAL
2694 - Name: '.debug$S'
2695 Value: 0
2696 SectionNumber: 17
2697 SimpleType: IMAGE_SYM_TYPE_NULL
2698 ComplexType: IMAGE_SYM_DTYPE_NULL
2699 StorageClass: IMAGE_SYM_CLASS_STATIC
2700 SectionDefinition:
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2702 NumberOfRelocations: 2
2703 NumberOfLinenumbers: 0
2704 CheckSum: 0
2705 Number: 13
2706 Selection: IMAGE_COMDAT_SELECT_ASSOCIATIVE
2707 - Name: '.debug$S'
2708 Value: 0
2709 SectionNumber: 18
2710 SimpleType: IMAGE_SYM_TYPE_NULL
2711 ComplexType: IMAGE_SYM_DTYPE_NULL
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2715 NumberOfRelocations: 2
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2728 NumberOfRelocations: 2
2729 NumberOfLinenumbers: 0
2730 CheckSum: 0
2731 Number: 15
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2744 Number: 16
2745 Selection: IMAGE_COMDAT_SELECT_ASSOCIATIVE
2746...
2747
deps/lld/test/COFF/pdb-type-server-simple.test+14-10
...@@ -21,7 +21,7 @@ RUN: yaml2obj %S/Inputs/pdb-type-server-simple-a.yaml -o a.obj...@@ -21,7 +21,7 @@ RUN: yaml2obj %S/Inputs/pdb-type-server-simple-a.yaml -o a.obj
21RUN: yaml2obj %S/Inputs/pdb-type-server-simple-b.yaml -o b.obj21RUN: yaml2obj %S/Inputs/pdb-type-server-simple-b.yaml -o b.obj
22RUN: llvm-pdbutil yaml2pdb %S/Inputs/pdb-type-server-simple-ts.yaml -pdb ts.pdb22RUN: llvm-pdbutil yaml2pdb %S/Inputs/pdb-type-server-simple-ts.yaml -pdb ts.pdb
23RUN: lld-link a.obj b.obj -entry:main -debug -out:t.exe -pdb:t.pdb -nodefaultlib23RUN: lld-link a.obj b.obj -entry:main -debug -out:t.exe -pdb:t.pdb -nodefaultlib
24RUN: llvm-pdbutil dump -symbols -types -ids %t/t.pdb | FileCheck %s24RUN: llvm-pdbutil dump -symbols -types -ids -globals %t/t.pdb | FileCheck %s
2525
2626
27CHECK-LABEL: Types (TPI Stream)27CHECK-LABEL: Types (TPI Stream)
...@@ -59,23 +59,29 @@ CHECK: {{.*}}: `a.c`...@@ -59,23 +59,29 @@ CHECK: {{.*}}: `a.c`
59CHECK: [[B_BUILD:[^ ]*]] | LF_BUILDINFO [size = 28]59CHECK: [[B_BUILD:[^ ]*]] | LF_BUILDINFO [size = 28]
60CHECK: {{.*}}: `b.c`60CHECK: {{.*}}: `b.c`
6161
62CHECK-LABEL: Global Symbols
63CHECK: ============================================================
64CHECK-NEXT: Records
65CHECK-NEXT: 36 | S_PROCREF [size = 20] `main`
66CHECK-NEXT: module = 1, sum name = 0, offset = 104
67CHECK-NEXT: 56 | S_PROCREF [size = 16] `g`
68CHECK-NEXT: module = 2, sum name = 0, offset = 104
69
62CHECK-LABEL: Symbols70CHECK-LABEL: Symbols
63CHECK: ============================================================71CHECK: ============================================================
64CHECK-LABEL: Mod 0000 | `{{.*}}a.obj`:72CHECK-LABEL: Mod 0000 | `{{.*}}a.obj`:
65CHECK: 4 | S_OBJNAME [size = 40] sig=0, `C:\src\llvm-project\build\a.obj`73CHECK: 4 | S_OBJNAME [size = 40] sig=0, `C:\src\llvm-project\build\a.obj`
66CHECK: 104 | S_GPROC32_ID [size = 44] `main`74CHECK: 104 | S_GPROC32 [size = 44] `main`
67CHECK: parent = 0, end = 196, addr = 0002:0000, code size = 2775CHECK: parent = 0, end = 196, addr = 0002:0000, code size = 27
68CHECK: type = {{.*}}, debug start = 4, debug end = 22, flags = none76CHECK: type = {{.*}}, debug start = 4, debug end = 22, flags = none
69CHECK: 200 | S_UDT [size = 12] `Foo`77CHECK: 200 | S_BUILDINFO [size = 8] BuildId = `[[A_BUILD]]`
70CHECK: original type = [[FOO_COMPLETE]]
71CHECK: 212 | S_BUILDINFO [size = 8] BuildId = `[[A_BUILD]]`
72CHECK-LABEL: Mod 0001 | `{{.*}}b.obj`:78CHECK-LABEL: Mod 0001 | `{{.*}}b.obj`:
73CHECK: 4 | S_OBJNAME [size = 40] sig=0, `C:\src\llvm-project\build\b.obj`79CHECK: 4 | S_OBJNAME [size = 40] sig=0, `C:\src\llvm-project\build\b.obj`
74CHECK: 44 | S_COMPILE3 [size = 60]80CHECK: 44 | S_COMPILE3 [size = 60]
75CHECK: machine = intel x86-x64, Ver = Microsoft (R) Optimizing Compiler, language = c81CHECK: machine = intel x86-x64, Ver = Microsoft (R) Optimizing Compiler, language = c
76CHECK: frontend = 19.0.24215.1, backend = 19.0.24215.182CHECK: frontend = 19.0.24215.1, backend = 19.0.24215.1
77CHECK: flags = security checks | hot patchable83CHECK: flags = security checks | hot patchable
78CHECK: 104 | S_GPROC32_ID [size = 44] `g`84CHECK: 104 | S_GPROC32 [size = 44] `g`
79CHECK: parent = 0, end = 196, addr = 0002:0032, code size = 1385CHECK: parent = 0, end = 196, addr = 0002:0032, code size = 13
80CHECK: type = {{.*}}, debug start = 5, debug end = 12, flags = none86CHECK: type = {{.*}}, debug start = 5, debug end = 12, flags = none
81CHECK: 148 | S_FRAMEPROC [size = 32]87CHECK: 148 | S_FRAMEPROC [size = 32]
...@@ -83,9 +89,7 @@ CHECK: size = 0, padding size = 0, offset to padding = 0...@@ -83,9 +89,7 @@ CHECK: size = 0, padding size = 0, offset to padding = 0
83CHECK: bytes of callee saved registers = 0, exception handler addr = 0000:000089CHECK: bytes of callee saved registers = 0, exception handler addr = 0000:0000
84CHECK: flags = has async eh | opt speed90CHECK: flags = has async eh | opt speed
85CHECK: 180 | S_REGREL32 [size = 16] `p`91CHECK: 180 | S_REGREL32 [size = 16] `p`
86CHECK: type = [[FOO_PTR]] (Foo*), register = rsp, offset = 892CHECK: type = [[FOO_PTR]] (Foo*), register = RSP, offset = 8
87CHECK: 196 | S_END [size = 4]93CHECK: 196 | S_END [size = 4]
88CHECK: 200 | S_UDT [size = 12] `Foo`94CHECK: 200 | S_BUILDINFO [size = 8] BuildId = `[[B_BUILD]]`
89CHECK: original type = [[FOO_COMPLETE]]
90CHECK: 212 | S_BUILDINFO [size = 8] BuildId = `[[B_BUILD]]`
91CHECK-LABEL: Mod 0002 | `* Linker *`:95CHECK-LABEL: Mod 0002 | `* Linker *`:
deps/lld/test/COFF/pdb.test+123-37
...@@ -1,13 +1,15 @@...@@ -1,13 +1,15 @@
1# RUN: yaml2obj < %p/Inputs/pdb1.yaml > %t1.obj1# RUN: yaml2obj < %p/Inputs/pdb1.yaml > %t1.obj
2# RUN: yaml2obj < %p/Inputs/pdb2.yaml > %t2.obj2# RUN: yaml2obj < %p/Inputs/pdb2.yaml > %t2.obj
3# RUN: rm -f %t.dll %t.pdb
3# RUN: lld-link /debug /pdb:%t.pdb /dll /out:%t.dll /entry:main /nodefaultlib \4# RUN: lld-link /debug /pdb:%t.pdb /dll /out:%t.dll /entry:main /nodefaultlib \
4# RUN: %t1.obj %t2.obj5# RUN: %t1.obj %t2.obj
56
6# RUN: llvm-pdbutil pdb2yaml -stream-metadata -stream-directory -pdb-stream \7# RUN: llvm-pdbutil pdb2yaml -stream-metadata -stream-directory -pdb-stream \
7# RUN: -dbi-stream -ipi-stream -tpi-stream %t.pdb | FileCheck %s8# RUN: -dbi-stream -ipi-stream -tpi-stream %t.pdb | FileCheck %s
89
9# RUN: llvm-pdbutil dump -modules -section-map -section-contribs \10# RUN: llvm-pdbutil dump -modules -section-map -section-contribs -section-headers \
10# RUN: -types -ids %t.pdb | FileCheck -check-prefix RAW %s11# RUN: -publics -public-extras -types -ids -type-extras -id-extras %t.pdb \
12# RUN: | FileCheck -check-prefix RAW %s
1113
12# CHECK: MSF:14# CHECK: MSF:
13# CHECK-NEXT: SuperBlock:15# CHECK-NEXT: SuperBlock:
...@@ -117,86 +119,170 @@...@@ -117,86 +119,170 @@
117119
118RAW: Modules120RAW: Modules
119RAW-NEXT: ============================================================121RAW-NEXT: ============================================================
120RAW-NEXT: Mod 0000 | Name: `{{.*}}pdb.test.tmp1.obj`:122RAW-NEXT: Mod 0000 | `{{.*}}pdb.test.tmp1.obj`:
121RAW-NEXT: Obj: `{{.*}}pdb.test.tmp1.obj`:123RAW-NEXT: Obj: `{{.*}}pdb.test.tmp1.obj`:
122RAW-NEXT: debug stream: 9, # files: 1, has ec info: false124RAW-NEXT: debug stream: 9, # files: 1, has ec info: false
123RAW-NEXT: pdb file ni: 0 ``, src file ni: 0 ``125RAW-NEXT: pdb file ni: 0 ``, src file ni: 0 ``
124RAW-NEXT: Mod 0001 | Name: `{{.*}}pdb.test.tmp2.obj`:126RAW-NEXT: Mod 0001 | `{{.*}}pdb.test.tmp2.obj`:
125RAW-NEXT: Obj: `{{.*}}pdb.test.tmp2.obj`:127RAW-NEXT: Obj: `{{.*}}pdb.test.tmp2.obj`:
126RAW-NEXT: debug stream: 10, # files: 1, has ec info: false128RAW-NEXT: debug stream: 10, # files: 1, has ec info: false
127RAW-NEXT: pdb file ni: 0 ``, src file ni: 0 ``129RAW-NEXT: pdb file ni: 0 ``, src file ni: 0 ``
128RAW-NEXT: Mod 0002 | Name: `* Linker *`:130RAW-NEXT: Mod 0002 | `* Linker *`:
129RAW-NEXT: Obj: ``:131RAW-NEXT: Obj: ``:
130RAW-NEXT: debug stream: 11, # files: 0, has ec info: false132RAW-NEXT: debug stream: 11, # files: 0, has ec info: false
131RAW-NEXT: pdb file ni: 1 `{{.*pdb.test.tmp.pdb}}`, src file ni: 0 ``133RAW-NEXT: pdb file ni: 1 `{{.*pdb.test.tmp.pdb}}`, src file ni: 0 ``
132RAW: Types (TPI Stream)134RAW: Types (TPI Stream)
133RAW-NEXT: ============================================================135RAW-NEXT: ============================================================
134RAW-NEXT: Showing 5 records136RAW-NEXT: Showing 5 records
135RAW-NEXT: 0x1000 | LF_ARGLIST [size = 8]137RAW-NEXT: 0x1000 | LF_ARGLIST [size = 8, hash = 0xEC0]
136RAW-NEXT: 0x1001 | LF_PROCEDURE [size = 16]138RAW-NEXT: 0x1001 | LF_PROCEDURE [size = 16, hash = 0x7BC]
137RAW-NEXT: return type = 0x0074 (int), # args = 0, param list = 0x1000139RAW-NEXT: return type = 0x0074 (int), # args = 0, param list = 0x1000
138RAW-NEXT: calling conv = cdecl, options = None140RAW-NEXT: calling conv = cdecl, options = None
139RAW-NEXT: 0x1002 | LF_POINTER [size = 12]141RAW-NEXT: 0x1002 | LF_POINTER [size = 12, hash = 0x884]
140RAW-NEXT: referent = 0x1001, mode = pointer, opts = None, kind = ptr64142RAW-NEXT: referent = 0x1001, mode = pointer, opts = None, kind = ptr64
141RAW-NEXT: 0x1003 | LF_ARGLIST [size = 12]143RAW-NEXT: 0x1003 | LF_ARGLIST [size = 12, hash = 0x936]
142RAW-NEXT: <no type>: ``144RAW-NEXT: <no type>: ``
143RAW-NEXT: 0x1004 | LF_PROCEDURE [size = 16]145RAW-NEXT: 0x1004 | LF_PROCEDURE [size = 16, hash = 0x852]
144RAW-NEXT: return type = 0x0074 (int), # args = 0, param list = 0x1003146RAW-NEXT: return type = 0x0074 (int), # args = 0, param list = 0x1003
145RAW-NEXT: calling conv = cdecl, options = None147RAW-NEXT: calling conv = cdecl, options = None
146RAW: Types (IPI Stream)148RAW: Types (IPI Stream)
147RAW-NEXT: ============================================================149RAW-NEXT: ============================================================
148RAW-NEXT: Showing 12 records150RAW-NEXT: Showing 12 records
149RAW-NEXT: 0x1000 | LF_FUNC_ID [size = 20]151RAW-NEXT: 0x1000 | LF_FUNC_ID [size = 20, hash = 0x330]
150RAW-NEXT: name = main, type = 0x1004, parent scope = <no type>152RAW-NEXT: name = main, type = 0x1004, parent scope = <no type>
151RAW-NEXT: 0x1001 | LF_FUNC_ID [size = 16]153RAW-NEXT: 0x1001 | LF_FUNC_ID [size = 16, hash = 0x120]
152RAW-NEXT: name = foo, type = 0x1001, parent scope = <no type>154RAW-NEXT: name = foo, type = 0x1001, parent scope = <no type>
153RAW-NEXT: 0x1002 | LF_STRING_ID [size = 16] ID: <no type>, String: D:\b155RAW-NEXT: 0x1002 | LF_STRING_ID [size = 16, hash = 0x757] ID: <no type>, String: D:\b
154RAW-NEXT: 0x1003 | LF_STRING_ID [size = 36] ID: <no type>, String: C:\vs14\VC\BIN\amd64\cl.exe156RAW-NEXT: 0x1003 | LF_STRING_ID [size = 36, hash = 0xC3A] ID: <no type>, String: C:\vs14\VC\BIN\amd64\cl.exe
155RAW-NEXT: 0x1004 | LF_STRING_ID [size = 260] ID: <no type>, String: -Z7 -c -MT -IC:\vs14\VC\INCLUDE -IC:\vs14\VC\ATLMFC\INCLUDE -I"C:\Program Files (x86)\Windows Kits\10\include\10.0.10150.0\ucrt" -I"C:\Program Files (x86)\Windows Kits\NETFXSDK\4.6\include\um" -I"C:\Program Files (x86)\Windows Kits\8.1\include\shared"157RAW-NEXT: 0x1004 | LF_STRING_ID [size = 260, hash = 0x433] ID: <no type>, String: -Z7 -c -MT -IC:\vs14\VC\INCLUDE -IC:\vs14\VC\ATLMFC\INCLUDE -I"C:\Program Files (x86)\Windows Kits\10\include\10.0.10150.0\ucrt" -I"C:\Program Files (x86)\Windows Kits\NETFXSDK\4.6\include\um" -I"C:\Program Files (x86)\Windows Kits\8.1\include\shared"
156RAW-NEXT: 0x1005 | LF_SUBSTR_LIST [size = 12]158RAW-NEXT: 0x1005 | LF_SUBSTR_LIST [size = 12, hash = 0x759]
157RAW-NEXT: 0x1004: `-Z7 -c -MT -IC:\vs14\VC\INCLUDE -IC:\vs14\VC\ATLMFC\INCLUDE -I"C:\Program Files (x86)\Windows Kits\10\include\10.0.10150.0\ucrt" -I"C:\Program Files (x86)\Windows Kits\NETFXSDK\4.6\include\um" -I"C:\Program Files (x86)\Windows Kits\8.1\include\shared"`159RAW-NEXT: 0x1004: `-Z7 -c -MT -IC:\vs14\VC\INCLUDE -IC:\vs14\VC\ATLMFC\INCLUDE -I"C:\Program Files (x86)\Windows Kits\10\include\10.0.10150.0\ucrt" -I"C:\Program Files (x86)\Windows Kits\NETFXSDK\4.6\include\um" -I"C:\Program Files (x86)\Windows Kits\8.1\include\shared"`
158RAW-NEXT: 0x1006 | LF_STRING_ID [size = 132] ID: 0x1005, String: -I"C:\Program Files (x86)\Windows Kits\8.1\include\um" -I"C:\Program Files (x86)\Windows Kits\8.1\include\winrt" -TC -X160RAW-NEXT: 0x1006 | LF_STRING_ID [size = 132, hash = 0xF57] ID: 0x1005, String: -I"C:\Program Files (x86)\Windows Kits\8.1\include\um" -I"C:\Program Files (x86)\Windows Kits\8.1\include\winrt" -TC -X
159RAW-NEXT: 0x1007 | LF_STRING_ID [size = 24] ID: <no type>, String: ret42-main.c161RAW-NEXT: 0x1007 | LF_STRING_ID [size = 24, hash = 0x2D1] ID: <no type>, String: ret42-main.c
160RAW-NEXT: 0x1008 | LF_STRING_ID [size = 24] ID: <no type>, String: D:\b\vc140.pdb162RAW-NEXT: 0x1008 | LF_STRING_ID [size = 24, hash = 0xB8B] ID: <no type>, String: D:\b\vc140.pdb
161RAW-NEXT: 0x1009 | LF_BUILDINFO [size = 28]163RAW-NEXT: 0x1009 | LF_BUILDINFO [size = 28, hash = 0xA8C]
162RAW-NEXT: 0x1002: `D:\b`164RAW-NEXT: 0x1002: `D:\b`
163RAW-NEXT: 0x1003: `C:\vs14\VC\BIN\amd64\cl.exe`165RAW-NEXT: 0x1003: `C:\vs14\VC\BIN\amd64\cl.exe`
164RAW-NEXT: 0x1007: `ret42-main.c`166RAW-NEXT: 0x1007: `ret42-main.c`
165RAW-NEXT: 0x1008: `D:\b\vc140.pdb`167RAW-NEXT: 0x1008: `D:\b\vc140.pdb`
166RAW-NEXT: 0x1006: ` -I"C:\Program Files (x86)\Windows Kits\8.1\include\um" -I"C:\Program Files (x86)\Windows Kits\8.1\include\winrt" -TC -X`168RAW-NEXT: 0x1006: ` -I"C:\Program Files (x86)\Windows Kits\8.1\include\um" -I"C:\Program Files (x86)\Windows Kits\8.1\include\winrt" -TC -X`
167RAW-NEXT: 0x100A | LF_STRING_ID [size = 20] ID: <no type>, String: ret42-sub.c169RAW-NEXT: 0x100A | LF_STRING_ID [size = 20, hash = 0x39C] ID: <no type>, String: ret42-sub.c
168RAW-NEXT: 0x100B | LF_BUILDINFO [size = 28]170RAW-NEXT: 0x100B | LF_BUILDINFO [size = 28, hash = 0xAD7]
169RAW-NEXT: 0x1002: `D:\b`171RAW-NEXT: 0x1002: `D:\b`
170RAW-NEXT: 0x1003: `C:\vs14\VC\BIN\amd64\cl.exe`172RAW-NEXT: 0x1003: `C:\vs14\VC\BIN\amd64\cl.exe`
171RAW-NEXT: 0x100A: `ret42-sub.c`173RAW-NEXT: 0x100A: `ret42-sub.c`
172RAW-NEXT: 0x1008: `D:\b\vc140.pdb`174RAW-NEXT: 0x1008: `D:\b\vc140.pdb`
173RAW-NEXT: 0x1006: ` -I"C:\Program Files (x86)\Windows Kits\8.1\include\um" -I"C:\Program Files (x86)\Windows Kits\8.1\include\winrt" -TC -X`175RAW-NEXT: 0x1006: ` -I"C:\Program Files (x86)\Windows Kits\8.1\include\um" -I"C:\Program Files (x86)\Windows Kits\8.1\include\winrt" -TC -X`
176RAW: Public Symbols
177RAW-NEXT: ============================================================
178RAW-NEXT: Publics Header
179RAW-NEXT: sym hash = 556, thunk table addr = 0000:0000
180RAW-NEXT: GSI Header
181RAW-NEXT: sig = 0xFFFFFFFF, hdr = 0xF12F091A, hr size = 16, num buckets = 524
182RAW-NEXT: Records
183RAW-NEXT: 20 | S_PUB32 [size = 20] `main`
184RAW-NEXT: flags = function, addr = 0002:0000
185RAW-NEXT: 0 | S_PUB32 [size = 20] `foo`
186RAW-NEXT: flags = function, addr = 0002:0016
187RAW-NOT: S_PUB32
188RAW-NEXT: Hash Entries
189RAW-NEXT: off = 21, refcnt = 1
190RAW-NEXT: off = 1, refcnt = 1
191RAW-NEXT: Hash Buckets
192RAW-NEXT: 0x00000000
193RAW-NEXT: 0x0000000c
194RAW-NEXT: Address Map
195RAW-NEXT: off = 20
196RAW-NEXT: off = 0
197RAW: Section Headers
198RAW-NEXT: ============================================================
199RAW: SECTION HEADER #1
200RAW-NEXT: .pdata name
201RAW-NEXT: virtual size
202RAW-NEXT: 1000 virtual address
203RAW-NEXT: 200 size of raw data
204RAW-NEXT: 400 file pointer to raw data
205RAW-NEXT: 0 file pointer to relocation table
206RAW-NEXT: 0 file pointer to line numbers
207RAW-NEXT: 0 number of relocations
208RAW-NEXT: 0 number of line numbers
209RAW-NEXT: 40000040 flags
210RAW-NEXT: IMAGE_SCN_CNT_INITIALIZED_DATA
211RAW-NEXT: IMAGE_SCN_MEM_READ
212RAW: SECTION HEADER #2
213RAW-NEXT: .text name
214RAW-NEXT: virtual size
215RAW-NEXT: 2000 virtual address
216RAW-NEXT: 200 size of raw data
217RAW-NEXT: 600 file pointer to raw data
218RAW-NEXT: 0 file pointer to relocation table
219RAW-NEXT: 0 file pointer to line numbers
220RAW-NEXT: 0 number of relocations
221RAW-NEXT: 0 number of line numbers
222RAW-NEXT: 60000020 flags
223RAW-NEXT: IMAGE_SCN_CNT_CODE
224RAW-NEXT: IMAGE_SCN_MEM_EXECUTE
225RAW-NEXT: IMAGE_SCN_MEM_READ
226RAW: SECTION HEADER #3
227RAW-NEXT: .xdata name
228RAW-NEXT: virtual size
229RAW-NEXT: 3000 virtual address
230RAW-NEXT: 200 size of raw data
231RAW-NEXT: 800 file pointer to raw data
232RAW-NEXT: 0 file pointer to relocation table
233RAW-NEXT: 0 file pointer to line numbers
234RAW-NEXT: 0 number of relocations
235RAW-NEXT: 0 number of line numbers
236RAW-NEXT: 40000040 flags
237RAW-NEXT: IMAGE_SCN_CNT_INITIALIZED_DATA
238RAW-NEXT: IMAGE_SCN_MEM_READ
239RAW: SECTION HEADER #4
240RAW-NEXT: .rdata name
241RAW-NEXT: virtual size
242RAW-NEXT: 4000 virtual address
243RAW-NEXT: 200 size of raw data
244RAW-NEXT: A00 file pointer to raw data
245RAW-NEXT: 0 file pointer to relocation table
246RAW-NEXT: 0 file pointer to line numbers
247RAW-NEXT: 0 number of relocations
248RAW-NEXT: 0 number of line numbers
249RAW-NEXT: 40000040 flags
250RAW-NEXT: IMAGE_SCN_CNT_INITIALIZED_DATA
251RAW-NEXT: IMAGE_SCN_MEM_READ
252RAW: Original Section Headers
253RAW-NEXT: ============================================================
254RAW-NEXT: PDB does not contain the requested image section header type
174RAW: Section Contributions255RAW: Section Contributions
175RAW-NEXT: ============================================================256RAW-NEXT: ============================================================
176RAW-NEXT: SC | mod = 0, 65535:1288, size = 14, data crc = 0, reloc crc = 0257RAW-NEXT: SC[.pdata] | mod = 0, 0001:0000, size = 12, data crc = 361370162, reloc crc = 0
177RAW-NEXT: IMAGE_SCN_CNT_CODE | IMAGE_SCN_ALIGN_16BYTES | IMAGE_SCN_MEM_EXECUTE |258RAW-NEXT: IMAGE_SCN_CNT_INITIALIZED_DATA | IMAGE_SCN_ALIGN_4BYTES | IMAGE_SCN_MEM_READ
178RAW-NEXT: IMAGE_SCN_MEM_READ259RAW-NEXT: SC[.text] | mod = 0, 0002:0000, size = 14, data crc = 1682752513, reloc crc = 0
179RAW-NEXT: SC | mod = 0, 65535:1312, size = 8, data crc = 0, reloc crc = 0260RAW-NEXT: IMAGE_SCN_CNT_CODE | IMAGE_SCN_ALIGN_16BYTES | IMAGE_SCN_MEM_EXECUTE |
180RAW-NEXT: IMAGE_SCN_CNT_INITIALIZED_DATA | IMAGE_SCN_ALIGN_4BYTES | IMAGE_SCN_MEM_READ261RAW-NEXT: IMAGE_SCN_MEM_READ
181RAW-NEXT: SC | mod = 0, 65535:1320, size = 12, data crc = 0, reloc crc = 0262RAW-NEXT: SC[.text] | mod = 1, 0002:0016, size = 6, data crc = 2139436471, reloc crc = 0
182RAW-NEXT: IMAGE_SCN_CNT_INITIALIZED_DATA | IMAGE_SCN_ALIGN_4BYTES | IMAGE_SCN_MEM_READ263RAW-NEXT: IMAGE_SCN_CNT_CODE | IMAGE_SCN_ALIGN_16BYTES | IMAGE_SCN_MEM_EXECUTE |
183RAW-NEXT: SC | mod = 1, 65535:1144, size = 6, data crc = 0, reloc crc = 0264RAW-NEXT: IMAGE_SCN_MEM_READ
184RAW-NEXT: IMAGE_SCN_CNT_CODE | IMAGE_SCN_ALIGN_16BYTES | IMAGE_SCN_MEM_EXECUTE |265RAW-NEXT: SC[.xdata] | mod = 0, 0003:0000, size = 8, data crc = 264583633, reloc crc = 0
185RAW-NEXT: IMAGE_SCN_MEM_READ266RAW-NEXT: IMAGE_SCN_CNT_INITIALIZED_DATA | IMAGE_SCN_ALIGN_4BYTES | IMAGE_SCN_MEM_READ
267RAW-NEXT: SC[???] | mod = 2, 0004:0000, size = {{[0-9]+}}, data crc = 0, reloc crc = 0
268RAW-NEXT: IMAGE_SCN_CNT_INITIALIZED_DATA | IMAGE_SCN_MEM_READ
269RAW-NEXT: SC[???] | mod = 2, 0004:0028, size = {{[0-9]+}}, data crc = 0, reloc crc = 0
270RAW-NEXT: IMAGE_SCN_CNT_INITIALIZED_DATA | IMAGE_SCN_MEM_READ
271RAW-NOT: SC[
186RAW: Section Map272RAW: Section Map
187RAW-NEXT: ============================================================273RAW-NEXT: ============================================================
188RAW-NEXT: Section 0000 | ovl = 0, group = 0, frame = 0, name = 1274RAW-NEXT: Section 0000 | ovl = 0, group = 0, frame = 1, name = 65535
189RAW-NEXT: class = 65535, offset = 0, size =275RAW-NEXT: class = 65535, offset = 0, size =
190RAW-NEXT: flags = read | 32 bit addr | selector276RAW-NEXT: flags = read | 32 bit addr | selector
191RAW-NEXT: Section 0001 | ovl = 1, group = 0, frame = 0, name = 2277RAW-NEXT: Section 0001 | ovl = 0, group = 0, frame = 2, name = 65535
192RAW-NEXT: class = 65535, offset = 0, size =278RAW-NEXT: class = 65535, offset = 0, size =
193RAW-NEXT: flags = read | execute | 32 bit addr | selector279RAW-NEXT: flags = read | execute | 32 bit addr | selector
194RAW-NEXT: Section 0002 | ovl = 2, group = 0, frame = 0, name = 3280RAW-NEXT: Section 0002 | ovl = 0, group = 0, frame = 3, name = 65535
195RAW-NEXT: class = 65535, offset = 0, size =281RAW-NEXT: class = 65535, offset = 0, size =
196RAW-NEXT: flags = read | 32 bit addr | selector282RAW-NEXT: flags = read | 32 bit addr | selector
197RAW-NEXT: Section 0003 | ovl = 3, group = 0, frame = 0, name = 4283RAW-NEXT: Section 0003 | ovl = 0, group = 0, frame = 4, name = 65535
198RAW-NEXT: class = 65535, offset = 0, size =284RAW-NEXT: class = 65535, offset = 0, size =
199RAW-NEXT: flags = read | 32 bit addr | selector285RAW-NEXT: flags = read | 32 bit addr | selector
200RAW-NEXT: Section 0004 | ovl = 4, group = 0, frame = 0, name = 5286RAW-NEXT: Section 0004 | ovl = 0, group = 0, frame = 5, name = 65535
201RAW-NEXT: class = 65535, offset = 0, size =287RAW-NEXT: class = 65535, offset = 0, size =
202RAW-NEXT: flags = 32 bit addr | absolute addr288RAW-NEXT: flags = 32 bit addr | absolute addr
deps/lld/test/COFF/reloc-arm.test+8-8
...@@ -28,28 +28,28 @@ sections:...@@ -28,28 +28,28 @@ sections:
28 Relocations:28 Relocations:
29 - VirtualAddress: 029 - VirtualAddress: 0
30 SymbolName: foo30 SymbolName: foo
31 Type: 1 # IMAGE_REL_ARM_ADDR3231 Type: IMAGE_REL_ARM_ADDR32
32 - VirtualAddress: 1632 - VirtualAddress: 16
33 SymbolName: foo33 SymbolName: foo
34 Type: 2 # IMAGE_REL_ARM_ADDR32NB34 Type: IMAGE_REL_ARM_ADDR32NB
35 - VirtualAddress: 3235 - VirtualAddress: 32
36 SymbolName: foo36 SymbolName: foo
37 Type: 17 # IMAGE_REL_ARM_MOV32T37 Type: IMAGE_REL_ARM_MOV32T
38 - VirtualAddress: 4838 - VirtualAddress: 48
39 SymbolName: foo39 SymbolName: foo
40 Type: 20 # IMAGE_REL_ARM_BRANCH24T40 Type: IMAGE_REL_ARM_BRANCH24T
41 - VirtualAddress: 6441 - VirtualAddress: 64
42 SymbolName: foo42 SymbolName: foo
43 Type: 18 # IMAGE_REL_ARM_BRANCH20T43 Type: IMAGE_REL_ARM_BRANCH20T
44 - VirtualAddress: 8044 - VirtualAddress: 80
45 SymbolName: foo45 SymbolName: foo
46 Type: 21 # IMAGE_REL_ARM_BLX23T46 Type: IMAGE_REL_ARM_BLX23T
47 - VirtualAddress: 9647 - VirtualAddress: 96
48 SymbolName: bar48 SymbolName: bar
49 Type: 20 # IMAGE_REL_ARM_BRANCH24T49 Type: IMAGE_REL_ARM_BRANCH24T
50 - VirtualAddress: 11250 - VirtualAddress: 112
51 SymbolName: bar51 SymbolName: bar
52 Type: 15 # IMAGE_REL_ARM_SECREL52 Type: IMAGE_REL_ARM_SECREL
53symbols:53symbols:
54 - Name: .aaa54 - Name: .aaa
55 Value: 055 Value: 0
deps/lld/test/COFF/reloc-discarded-dwarf.s+2
...@@ -13,3 +13,5 @@ f:...@@ -13,3 +13,5 @@ f:
1313
14 .section .debug_info,"dr"14 .section .debug_info,"dr"
15 .quad f15 .quad f
16 .section .eh_frame,"dr"
17 .quad f
deps/lld/test/COFF/reloc-discarded-early.s created+8
...@@ -0,0 +1,8 @@
1# RUN: llvm-mc -triple=x86_64-windows-msvc -filetype=obj -o %t.obj %s
2# RUN: lld-link -entry:__ImageBase -subsystem:console -debug %t.obj
3
4.section .debug_info,"dr"
5.quad .Ldrectve
6
7.section .drectve
8.Ldrectve:
deps/lld/test/COFF/reloc-discarded-early2.s created+9
...@@ -0,0 +1,9 @@
1# RUN: llvm-mc -triple=x86_64-windows-msvc -filetype=obj -o %t.obj %s
2# RUN: not lld-link -entry:__ImageBase -subsystem:console %t.obj 2>&1 | FileCheck %s
3
4.text
5# CHECK: error: relocation against symbol in discarded section: .drectve
6.quad .Ldrectve
7
8.section .drectve
9.Ldrectve:
deps/lld/test/COFF/reloc-discarded.s-1
...@@ -18,7 +18,6 @@ main_global:...@@ -18,7 +18,6 @@ main_global:
1818
19 .section .CRT$XCU,"dr",associative,main_global19 .section .CRT$XCU,"dr",associative,main_global
20 .p2align 320 .p2align 3
21 .globl assoc_global
22assoc_global:21assoc_global:
23 .quad main_global22 .quad main_global
2423
deps/lld/test/COFF/responsefile.test+19-1
...@@ -3,5 +3,23 @@...@@ -3,5 +3,23 @@
3# RUN: echo /out:%t.exe /entry:main %t.obj > %t.rsp3# RUN: echo /out:%t.exe /entry:main %t.obj > %t.rsp
4# RUN: lld-link @%t.rsp /heap:0x30004# RUN: lld-link @%t.rsp /heap:0x3000
5# RUN: llvm-readobj -file-headers %t.exe | FileCheck %s5# RUN: llvm-readobj -file-headers %t.exe | FileCheck %s
6
7CHECK: SizeOfHeapReserve: 122886CHECK: SizeOfHeapReserve: 12288
7
8# RUN: not lld-link --rsp-quoting=foobar @%t.rsp 2>&1 | \
9# RUN: FileCheck --check-prefix=INVRSP %s
10INVRSP: invalid response file quoting: foobar
11
12# RUN: echo "blah\foo" > %t.rsp
13# RUN: not lld-link @%t.rsp 2>&1 | \
14# RUN: FileCheck --check-prefix=DEFRSP %s
15DEFRSP: error: could not open blah\foo
16
17# RUN: echo "blah\foo" > %t.rsp
18# RUN: not lld-link --rsp-quoting=windows @%t.rsp 2>&1 | \
19# RUN: FileCheck --check-prefix=WINRSP %s
20WINRSP: error: could not open blah\foo
21
22# RUN: echo "blah\foo" > %t.rsp
23# RUN: not lld-link --rsp-quoting=posix @%t.rsp 2>&1 | \
24# RUN: FileCheck --check-prefix=POSRSP %s
25POSRSP: error: could not open blahfoo
deps/lld/test/COFF/rsds.test+34-6
...@@ -1,11 +1,20 @@...@@ -1,11 +1,20 @@
1# RUN: yaml2obj %s > %t.obj1# RUN: yaml2obj %s > %t.obj
22
3# RUN: rm -f %t.dll %t.pdb
3# RUN: lld-link /debug /dll /out:%t.dll /entry:DllMain %t.obj4# RUN: lld-link /debug /dll /out:%t.dll /entry:DllMain %t.obj
4# RUN: llvm-readobj -coff-debug-directory %t.dll | FileCheck %s5# RUN: llvm-readobj -coff-debug-directory %t.dll > %t.1.txt
6# RUN: lld-link /debug /dll /out:%t.dll /entry:DllMain %t.obj
7# RUN: llvm-readobj -coff-debug-directory %t.dll > %t.2.txt
8# RUN: cat %t.1.txt %t.2.txt | FileCheck %s
59
10# RUN: rm -f %t.dll %t.pdb
11# RUN: lld-link /debug /pdb:%t.pdb /dll /out:%t.dll /entry:DllMain %t.obj
12# RUN: llvm-readobj -coff-debug-directory %t.dll > %t.3.txt
6# RUN: lld-link /debug /pdb:%t.pdb /dll /out:%t.dll /entry:DllMain %t.obj13# RUN: lld-link /debug /pdb:%t.pdb /dll /out:%t.dll /entry:DllMain %t.obj
7# RUN: llvm-readobj -coff-debug-directory %t.dll | FileCheck %s14# RUN: llvm-readobj -coff-debug-directory %t.dll > %t.4.txt
15# RUN: cat %t.3.txt %t.4.txt | FileCheck %s
816
17# CHECK: File: [[FILE:.*]].dll
9# CHECK: DebugDirectory [18# CHECK: DebugDirectory [
10# CHECK: DebugEntry {19# CHECK: DebugEntry {
11# CHECK: Characteristics: 0x020# CHECK: Characteristics: 0x0
...@@ -13,17 +22,36 @@...@@ -13,17 +22,36 @@
13# CHECK: MajorVersion: 0x022# CHECK: MajorVersion: 0x0
14# CHECK: MinorVersion: 0x023# CHECK: MinorVersion: 0x0
15# CHECK: Type: CodeView (0x2)24# CHECK: Type: CodeView (0x2)
16# CHECK: SizeOfData:25# CHECK: SizeOfData: 0x{{[^0]}}
17# CHECK: AddressOfRawData:26# CHECK: AddressOfRawData: 0x{{[^0]}}
18# CHECK: PointerToRawData:27# CHECK: PointerToRawData: 0x{{[^0]}}
19# CHECK: PDBInfo {28# CHECK: PDBInfo {
20# CHECK: PDBSignature: 0x5344535229# CHECK: PDBSignature: 0x53445352
21# CHECK: PDBGUID:30# CHECK: PDBGUID: [[GUID:\(([A-Za-z0-9]{2} ?){16}\)]]
22# CHECK: PDBAge: 131# CHECK: PDBAge: 1
23# CHECK: PDBFileName: {{.*}}.pdb32# CHECK: PDBFileName: {{.*}}.pdb
24# CHECK: }33# CHECK: }
25# CHECK: }34# CHECK: }
26# CHECK: ]35# CHECK: ]
36# CHECK: File: [[FILE]].dll
37# CHECK: DebugDirectory [
38# CHECK: DebugEntry {
39# CHECK: Characteristics: 0x0
40# CHECK: TimeDateStamp: 1970-01-01 00:00:00 (0x0)
41# CHECK: MajorVersion: 0x0
42# CHECK: MinorVersion: 0x0
43# CHECK: Type: CodeView (0x2)
44# CHECK: SizeOfData: 0x{{[^0]}}
45# CHECK: AddressOfRawData: 0x{{[^0]}}
46# CHECK: PointerToRawData: 0x{{[^0]}}
47# CHECK: PDBInfo {
48# CHECK: PDBSignature: 0x53445352
49# CHECK: PDBGUID: [[GUID]]
50# CHECK: PDBAge: 2
51# CHECK: PDBFileName: {{.*}}.pdb
52# CHECK: }
53# CHECK: }
54# CHECK: ]
2755
28--- !COFF56--- !COFF
29header:57header:
deps/lld/test/COFF/safeseh-md.s created+34
...@@ -0,0 +1,34 @@
1# RUN: llvm-mc -triple i686-windows-msvc %s -filetype=obj -o %t.obj
2# RUN: lld-link %t.obj %S/Inputs/except_handler3.lib -safeseh -out:%t.exe -opt:noref -entry:main
3# RUN: llvm-readobj -coff-load-config %t.exe | FileCheck %s
4
5# CHECK: SEHTable [
6# CHECK-NEXT: 0x
7# CHECK-NEXT: ]
8
9 .def @feat.00;
10 .scl 3;
11 .type 0;
12 .endef
13 .globl @feat.00
14@feat.00 = 1
15
16 .def _main;
17 .scl 2;
18 .type 32;
19 .endef
20 .section .text,"xr",one_only,_main
21 .globl _main
22_main:
23 movl $42, %eax
24 ret
25
26.safeseh __except_handler3
27
28 .section .rdata,"dr"
29.globl __load_config_used
30__load_config_used:
31 .long 72
32 .fill 60, 1, 0
33 .long ___safe_se_handler_table
34 .long ___safe_se_handler_count
deps/lld/test/COFF/safeseh.s+13-2
...@@ -1,9 +1,15 @@...@@ -1,9 +1,15 @@
1# RUN: llvm-mc -triple i686-windows-msvc %s -filetype=obj -o %t.obj1# RUN: llvm-mc -triple i686-windows-msvc %s -filetype=obj -o %t.obj
2# RUN: lld-link %t.obj -safeseh -out:%t.exe -opt:noref -entry:main2# RUN: lld-link %t.obj -safeseh -out:%t.exe -opt:noref -entry:main
3# RUN: llvm-readobj -coff-load-config %t.exe | FileCheck %s --check-prefix=CHECK-NOGC3# RUN: llvm-readobj -coff-basereloc -coff-load-config -file-headers %t.exe | FileCheck %s --check-prefix=CHECK-NOGC
4# RUN: lld-link %t.obj -safeseh -out:%t.exe -opt:ref -entry:main4# RUN: lld-link %t.obj -safeseh -out:%t.exe -opt:ref -entry:main
5# RUN: llvm-readobj -coff-load-config %t.exe | FileCheck %s --check-prefix=CHECK-GC5# RUN: llvm-readobj -coff-basereloc -coff-load-config -file-headers %t.exe | FileCheck %s --check-prefix=CHECK-GC
66
7# __safe_se_handler_table needs to be relocated against ImageBase.
8# check that the relocation is present.
9# CHECK-NOGC-NOT: IMAGE_DLL_CHARACTERISTICS_NO_SEH
10# CHECK-NOGC: BaseReloc [
11# CHECK-NOGC: Entry {
12# CHECK-NOGC: Type: HIGHLOW
7# CHECK-NOGC: LoadConfig [13# CHECK-NOGC: LoadConfig [
8# CHECK-NOGC: Size: 0x4814# CHECK-NOGC: Size: 0x48
9# CHECK-NOGC: SEHandlerTable: 0x40104815# CHECK-NOGC: SEHandlerTable: 0x401048
...@@ -13,6 +19,11 @@...@@ -13,6 +19,11 @@
13# CHECK-NOGC-NEXT: 0x40200619# CHECK-NOGC-NEXT: 0x402006
14# CHECK-NOGC-NEXT: ]20# CHECK-NOGC-NEXT: ]
1521
22# Without the SEH table, the address is absolute, so check that we do
23# not have a relocation for it.
24# CHECK-GC-NOT: IMAGE_DLL_CHARACTERISTICS_NO_SEH
25# CHECK-GC: BaseReloc [
26# CHECK-GC-NEXT: ]
16# CHECK-GC: LoadConfig [27# CHECK-GC: LoadConfig [
17# CHECK-GC: Size: 0x4828# CHECK-GC: Size: 0x48
18# CHECK-GC: SEHandlerTable: 0x029# CHECK-GC: SEHandlerTable: 0x0
deps/lld/test/COFF/section-size.s created+14
...@@ -0,0 +1,14 @@
1# REQUIRES: x86
2# RUN: llvm-mc -filetype=obj -triple=x86_64-windows-msvc %s -o %tmain.obj
3# RUN: echo '.lcomm s, 0x80000000' | llvm-mc -filetype=obj -triple=x86_64-windows-msvc -o %t1.obj
4# RUN: cp %t1.obj %t2.obj
5# RUN: echo '.lcomm s, 0xffffffff' | llvm-mc -filetype=obj -triple=x86_64-windows-msvc -o %t3.obj
6
7# Run: lld-link -entry:main %tmain.obj %t3.obj -out:%t.exe
8
9# RUN: not lld-link -entry:main %tmain.obj %t1.obj %t2.obj -out:%t.exe 2>&1 | FileCheck %s
10# CHECK: error: section larger than 4 GiB: .bss
11
12.globl main
13main:
14 retq
deps/lld/test/COFF/seh-comdat.test created+66
...@@ -0,0 +1,66 @@
1# RUN: yaml2obj < %s > %t1.obj
2# RUN: yaml2obj < %s > %t2.obj
3# RUN: lld-link /out:%t.exe /subsystem:console /entry:main %t1.obj %t2.obj
4# RUN: llvm-objdump -s %t.exe | FileCheck %s
5
6# CHECK: Contents of section .rdata:
7# CHECK: 1000 00200000
8
9--- !COFF
10header:
11 Machine: IMAGE_FILE_MACHINE_I386
12 Characteristics: [ ]
13sections:
14 - Name: .text
15 Characteristics: [ IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_DISCARDABLE, IMAGE_SCN_MEM_READ, IMAGE_SCN_LNK_COMDAT ]
16 Alignment: 1
17 SectionData: 0000000000000000
18 - Name: .sxdata
19 Characteristics: [ IMAGE_SCN_LNK_INFO ]
20 Alignment: 4
21 SectionData: 02000000
22symbols:
23 - Name: '@comp.id'
24 Value: 14766605
25 SectionNumber: 65535
26 SimpleType: IMAGE_SYM_TYPE_NULL
27 ComplexType: IMAGE_SYM_DTYPE_NULL
28 StorageClass: IMAGE_SYM_CLASS_STATIC
29 - Name: '@feat.00'
30 Value: 2147484049
31 SectionNumber: 65535
32 SimpleType: IMAGE_SYM_TYPE_NULL
33 ComplexType: IMAGE_SYM_DTYPE_NULL
34 StorageClass: IMAGE_SYM_CLASS_STATIC
35 - Name: .text
36 Value: 0
37 SectionNumber: 1
38 SimpleType: IMAGE_SYM_TYPE_NULL
39 ComplexType: IMAGE_SYM_DTYPE_NULL
40 StorageClass: IMAGE_SYM_CLASS_STATIC
41 SectionDefinition:
42 Length: 4
43 NumberOfRelocations: 0
44 NumberOfLinenumbers: 0
45 CheckSum: 0
46 Number: 0
47 Selection: IMAGE_COMDAT_SELECT_ANY
48 - Name: .sxdata
49 Value: 0
50 SectionNumber: 2
51 SimpleType: IMAGE_SYM_TYPE_NULL
52 ComplexType: IMAGE_SYM_DTYPE_NULL
53 StorageClass: IMAGE_SYM_CLASS_STATIC
54 SectionDefinition:
55 Length: 8
56 NumberOfRelocations: 0
57 NumberOfLinenumbers: 0
58 CheckSum: 0
59 Number: 0
60 - Name: _main
61 Value: 0
62 SectionNumber: 1
63 SimpleType: IMAGE_SYM_TYPE_NULL
64 ComplexType: IMAGE_SYM_DTYPE_FUNCTION
65 StorageClass: IMAGE_SYM_CLASS_EXTERNAL
66...
deps/lld/test/COFF/strtab-size.s created+216
...@@ -0,0 +1,216 @@
1# REQUIRES: x86
2
3# Test that the strtab size is included in the allocation even if the
4# strtab itself is empty. To achieve this, we need a number of symbols N
5# where alignTo(N*18, 512) < alignTo(N*18 + 4, 512), where the first
6# positive N fulfilling that is 199.
7
8# RUN: llvm-mc -triple=x86_64-windows-msvc %s -filetype=obj -o %t.obj
9# RUN: lld-link -out:%t.exe -entry:main %t.obj -debug:dwarf
10
11# If the size of the strtab isn't allocated for, llvm-readobj would
12# output SymbolCount: 0 (and dumpbin.exe would error out with "invalid file
13# or disk full, cannot seek to 0x1602").
14
15# RUN: llvm-readobj -file-headers %t.exe | FileCheck %s
16# CHECK: SymbolCount: 199
17
18.global main
19.text
20main:
21sym0:
22sym1:
23sym2:
24sym3:
25sym4:
26sym5:
27sym6:
28sym7:
29sym8:
30sym9:
31sym10:
32sym11:
33sym12:
34sym13:
35sym14:
36sym15:
37sym16:
38sym17:
39sym18:
40sym19:
41sym20:
42sym21:
43sym22:
44sym23:
45sym24:
46sym25:
47sym26:
48sym27:
49sym28:
50sym29:
51sym30:
52sym31:
53sym32:
54sym33:
55sym34:
56sym35:
57sym36:
58sym37:
59sym38:
60sym39:
61sym40:
62sym41:
63sym42:
64sym43:
65sym44:
66sym45:
67sym46:
68sym47:
69sym48:
70sym49:
71sym50:
72sym51:
73sym52:
74sym53:
75sym54:
76sym55:
77sym56:
78sym57:
79sym58:
80sym59:
81sym60:
82sym61:
83sym62:
84sym63:
85sym64:
86sym65:
87sym66:
88sym67:
89sym68:
90sym69:
91sym70:
92sym71:
93sym72:
94sym73:
95sym74:
96sym75:
97sym76:
98sym77:
99sym78:
100sym79:
101sym80:
102sym81:
103sym82:
104sym83:
105sym84:
106sym85:
107sym86:
108sym87:
109sym88:
110sym89:
111sym90:
112sym91:
113sym92:
114sym93:
115sym94:
116sym95:
117sym96:
118sym97:
119sym98:
120sym99:
121sym100:
122sym101:
123sym102:
124sym103:
125sym104:
126sym105:
127sym106:
128sym107:
129sym108:
130sym109:
131sym110:
132sym111:
133sym112:
134sym113:
135sym114:
136sym115:
137sym116:
138sym117:
139sym118:
140sym119:
141sym120:
142sym121:
143sym122:
144sym123:
145sym124:
146sym125:
147sym126:
148sym127:
149sym128:
150sym129:
151sym130:
152sym131:
153sym132:
154sym133:
155sym134:
156sym135:
157sym136:
158sym137:
159sym138:
160sym139:
161sym140:
162sym141:
163sym142:
164sym143:
165sym144:
166sym145:
167sym146:
168sym147:
169sym148:
170sym149:
171sym150:
172sym151:
173sym152:
174sym153:
175sym154:
176sym155:
177sym156:
178sym157:
179sym158:
180sym159:
181sym160:
182sym161:
183sym162:
184sym163:
185sym164:
186sym165:
187sym166:
188sym167:
189sym168:
190sym169:
191sym170:
192sym171:
193sym172:
194sym173:
195sym174:
196sym175:
197sym176:
198sym177:
199sym178:
200sym179:
201sym180:
202sym181:
203sym182:
204sym183:
205sym184:
206sym185:
207sym186:
208sym187:
209sym188:
210sym189:
211sym190:
212sym191:
213sym192:
214sym193:
215sym194:
216 ret
deps/lld/test/COFF/subsystem-drectve.test created+21
...@@ -0,0 +1,21 @@
1# RUN: yaml2obj < %s > %t.obj
2# RUN: lld-link /dll /noentry /out:%t.dll %t.obj
3# RUN: llvm-readobj -file-headers %t.dll | FileCheck %s
4
5# CHECK: MajorOperatingSystemVersion: 42
6# CHECK: MinorOperatingSystemVersion: 43
7# CHECK: MajorSubsystemVersion: 42
8# CHECK: MinorSubsystemVersion: 43
9# CHECK: Subsystem: IMAGE_SUBSYSTEM_WINDOWS_CUI
10
11--- !COFF
12header:
13 Machine: IMAGE_FILE_MACHINE_I386
14 Characteristics: []
15sections:
16 - Name: .drectve
17 Characteristics: [ IMAGE_SCN_LNK_INFO, IMAGE_SCN_LNK_REMOVE ]
18 Alignment: 1
19 SectionData: 2f73756273797374656d3a636f6e736f6c652c34322e343300 # /subsystem:console,42.43
20symbols:
21...
deps/lld/test/COFF/symtab.test+3-3
...@@ -1,10 +1,10 @@...@@ -1,10 +1,10 @@
1# RUN: yaml2obj < %s > %t.obj1# RUN: yaml2obj < %s > %t.obj
2# RUN: lld-link /debug /out:%t.exe /entry:main %t.obj %p/Inputs/std64.lib2# RUN: lld-link /debug:dwarf /out:%t.exe /entry:main %t.obj %p/Inputs/std64.lib
3# RUN: llvm-readobj -symbols %t.exe | FileCheck %s3# RUN: llvm-readobj -symbols %t.exe | FileCheck %s
4# RUN: lld-link /debug /opt:noref /out:%t.exe /entry:main %t.obj %p/Inputs/std64.lib4# RUN: lld-link /debug:dwarf /opt:noref /out:%t.exe /entry:main %t.obj %p/Inputs/std64.lib
5# RUN: llvm-readobj -symbols %t.exe | FileCheck %s5# RUN: llvm-readobj -symbols %t.exe | FileCheck %s
66
7# RUN: lld-link /debug /nosymtab /out:%t.exe /entry:main %t.obj %p/Inputs/std64.lib7# RUN: lld-link /debug /out:%t.exe /entry:main %t.obj %p/Inputs/std64.lib
8# RUN: llvm-readobj -symbols %t.exe | FileCheck -check-prefix=NO %s8# RUN: llvm-readobj -symbols %t.exe | FileCheck -check-prefix=NO %s
99
10# CHECK: Symbols [10# CHECK: Symbols [
deps/lld/test/COFF/thinlto.ll+1-1
...@@ -4,7 +4,7 @@...@@ -4,7 +4,7 @@
4; RUN: opt -thinlto-bc -o %T/thinlto/main.obj %s4; RUN: opt -thinlto-bc -o %T/thinlto/main.obj %s
5; RUN: opt -thinlto-bc -o %T/thinlto/foo.obj %S/Inputs/lto-dep.ll5; RUN: opt -thinlto-bc -o %T/thinlto/foo.obj %S/Inputs/lto-dep.ll
6; RUN: lld-link /lldsavetemps /out:%T/thinlto/main.exe /entry:main /subsystem:console %T/thinlto/main.obj %T/thinlto/foo.obj6; RUN: lld-link /lldsavetemps /out:%T/thinlto/main.exe /entry:main /subsystem:console %T/thinlto/main.obj %T/thinlto/foo.obj
7; RUN: llvm-nm %T/thinlto/main.exe.lto.obj | FileCheck %s7; RUN: llvm-nm %T/thinlto/main.exe1.lto.obj | FileCheck %s
88
9; CHECK-NOT: U foo9; CHECK-NOT: U foo
1010
deps/lld/test/COFF/wholearchive.s created+19
...@@ -0,0 +1,19 @@
1# REQEUIRES: x86
2
3# RUN: yaml2obj < %p/Inputs/export.yaml > %t.archive.obj
4# RUN: llvm-ar rcs %t.archive.lib %t.archive.obj
5# RUN: llvm-mc -triple=x86_64-windows-msvc %s -filetype=obj -o %t.main.obj
6
7# RUN: lld-link -dll -out:%t.dll -entry:main %t.main.obj -wholearchive:%t.archive.lib -implib:%t.lib
8# RUN: llvm-readobj %t.lib | FileCheck %s -check-prefix CHECK-IMPLIB
9
10# RUN: lld-link -dll -out:%t.dll -entry:main %t.main.obj -wholearchive %t.archive.lib -implib:%t.lib
11# RUN: llvm-readobj %t.lib | FileCheck %s -check-prefix CHECK-IMPLIB
12
13# CHECK-IMPLIB: Symbol: __imp_exportfn3
14# CHECK-IMPLIB: Symbol: exportfn3
15
16.global main
17.text
18main:
19 ret
deps/lld/test/COFF/wx.s created+17
...@@ -0,0 +1,17 @@
1# REQUIRES: x86
2
3# RUN: llvm-mc -triple=x86_64-windows-msvc -filetype=obj -o %t.obj %s
4# RUN: not lld-link /out:%t.exe /entry:main -notarealoption /WX %t.obj 2>&1 | \
5# RUN: FileCheck -check-prefix=ERROR %s
6# RUN: not lld-link /out:%t.exe /entry:main -notarealoption /WX:NO /WX %t.obj 2>&1 | \
7# RUN: FileCheck -check-prefix=ERROR %s
8# RUN: lld-link /out:%t.exe /entry:main -notarealoption /WX /WX:NO %t.obj 2>&1 | \
9# RUN: FileCheck -check-prefix=WARNING %s
10
11# ERROR: error: ignoring unknown argument: -notarealoption
12# WARNING: warning: ignoring unknown argument: -notarealoption
13
14.text
15.global main
16main:
17 ret
deps/lld/test/ELF/Inputs/amdgpu-kernel-0.s created+6
...@@ -0,0 +1,6 @@
1.text
2.globl kernel_0
3.align 64
4.amdgpu_hsa_kernel kernel_0
5kernel_0:
6 s_endpgm
deps/lld/test/ELF/Inputs/amdgpu-kernel-1.s created+6
...@@ -0,0 +1,6 @@
1.text
2.globl kernel_1
3.align 64
4.amdgpu_hsa_kernel kernel_1
5kernel_1:
6 s_endpgm
deps/lld/test/ELF/Inputs/amdgpu-kernel-2.o created
Binary files /dev/null and b/deps/lld/test/ELF/Inputs/amdgpu-kernel-2.o differ
deps/lld/test/ELF/Inputs/compress-debug.s created+5
...@@ -0,0 +1,5 @@
1.text
2.fill 0x44
3
4.section .debug_info,"",@progbits
5.fill 0x43
deps/lld/test/ELF/Inputs/copy-rel-abs.s created+13
...@@ -0,0 +1,13 @@
1 .global foo
2 .type foo, @object
3 .size foo, 4
4foo:
5 .weak bar
6 .type bar, @object
7 .size bar, 4
8bar:
9 .long 42
10
11 .weak zed
12 .type zed, @object
13 zed = 0x1000
deps/lld/test/ELF/Inputs/copy-rel-large.s created+4
...@@ -0,0 +1,4 @@
1 .global foo
2 .type foo, @object
3foo:
4 .size foo, 0x100000001
deps/lld/test/ELF/Inputs/copy-rel-pie.s+1
...@@ -9,3 +9,4 @@ foo:...@@ -9,3 +9,4 @@ foo:
9.global bar9.global bar
10.type bar, @function10.type bar, @function
11bar:11bar:
12retq
deps/lld/test/ELF/Inputs/corrupt-version-reference.so created
Binary files /dev/null and b/deps/lld/test/ELF/Inputs/corrupt-version-reference.so differ
deps/lld/test/ELF/Inputs/dynamic-list-weak-archive.s created+2
...@@ -0,0 +1,2 @@
1.globl foo
2foo:
deps/lld/test/ELF/Inputs/eh-frame.s created+3
...@@ -0,0 +1,3 @@
1.cfi_startproc
2.cfi_def_cfa_offset 32
3.cfi_endproc
deps/lld/test/ELF/Inputs/gc-sections-shared.s created+3
...@@ -0,0 +1,3 @@
1.global baz
2.type baz, @function
3baz:
deps/lld/test/ELF/Inputs/gc-sections-shared2.s created+3
...@@ -0,0 +1,3 @@
1.global qux
2.type qux, @function
3qux:
deps/lld/test/ELF/Inputs/local-symbol-in-dso.so created
Binary files /dev/null and b/deps/lld/test/ELF/Inputs/local-symbol-in-dso.so differ
deps/lld/test/ELF/Inputs/map-file5.s created+23
...@@ -0,0 +1,23 @@
1.bss
2.type sharedFoo,@object
3.globl sharedFoo
4sharedFoo:
5.long 0
6.size sharedFoo, 4
7
8.type sharedBar,@object
9.globl sharedBar
10sharedBar:
11.quad 0
12.size sharedBar, 8
13
14.text
15.globl sharedFunc1
16.type sharedFunc1,@function
17sharedFunc1:
18 nop
19
20.globl sharedFunc2
21.type sharedFunc2,@function
22sharedFunc2:
23 nop
deps/lld/test/ELF/Inputs/mips-micro.s created+12
...@@ -0,0 +1,12 @@
1 .text
2 .set micromips
3 .global foo
4 .type foo,@function
5foo:
6 nop
7
8 .set nomicromips
9 .global bar
10 .type bar,@function
11bar:
12 nop
deps/lld/test/ELF/Inputs/shared3.s+1-1
...@@ -1,3 +1,3 @@...@@ -1,3 +1,3 @@
1.global baz1.global baz
2.type barz, @function2.type baz, @function
3baz:3baz:
deps/lld/test/ELF/Inputs/shlib-undefined-ref.s created+4
...@@ -0,0 +1,4 @@
1.globl f
2f:
3 call should_not_be_exported@PLT
4 ret
deps/lld/test/ELF/Inputs/undefined-error.s created+1
...@@ -0,0 +1 @@
1callq fmod@PLT
deps/lld/test/ELF/Inputs/verdef-defaultver.s+3
...@@ -1,4 +1,7 @@...@@ -1,4 +1,7 @@
1.global b@V1
1b@V1 = b_12b@V1 = b_1
3
4.global b@@V2
2b@@V2 = b_25b@@V2 = b_2
36
4.globl a7.globl a
deps/lld/test/ELF/Inputs/verneed.so.sh deleted-58
...@@ -1,58 +0,0 @@
1#!/bin/sh -eu
2
3# This script was used to produce the verneed{1,2}.so files.
4
5tmp=$(mktemp -d)
6
7echo "v1 {}; v2 {}; v3 {}; { local: *; };" > $tmp/verneed.script
8
9cat > $tmp/verneed1.s <<eof
10.globl f1_v1
11f1_v1:
12ret
13
14.globl f1_v2
15f1_v2:
16ret
17
18.globl f1_v3
19f1_v3:
20ret
21
22.symver f1_v1, f1@v1
23.symver f1_v2, f1@v2
24.symver f1_v3, f1@@v3
25
26.globl f2_v1
27f2_v1:
28ret
29
30.globl f2_v2
31f2_v2:
32ret
33
34.symver f2_v1, f2@v1
35.symver f2_v2, f2@@v2
36
37.globl f3_v1
38f3_v1:
39ret
40
41.symver f3_v1, f3@v1
42eof
43
44as -o $tmp/verneed1.o $tmp/verneed1.s
45ld.gold -shared -o verneed1.so $tmp/verneed1.o --version-script $tmp/verneed.script -soname verneed1.so.0
46
47cat > $tmp/verneed2.s <<eof
48.globl g1_v1
49g1_v1:
50ret
51
52.symver g1_v1, g1@@v1
53eof
54
55as -o $tmp/verneed2.o $tmp/verneed2.s
56ld.gold -shared -o verneed2.so $tmp/verneed2.o --version-script $tmp/verneed.script -soname verneed2.so.0
57
58rm -rf $tmp
deps/lld/test/ELF/Inputs/verneed1.s created+32
...@@ -0,0 +1,32 @@
1.globl f1_v1
2f1_v1:
3ret
4
5.globl f1_v2
6f1_v2:
7ret
8
9.globl f1_v3
10f1_v3:
11ret
12
13.symver f1_v1, f1@v1
14.symver f1_v2, f1@v2
15.symver f1_v3, f1@@v3
16
17.globl f2_v1
18f2_v1:
19ret
20
21.globl f2_v2
22f2_v2:
23ret
24
25.symver f2_v1, f2@v1
26.symver f2_v2, f2@@v2
27
28.globl f3_v1
29f3_v1:
30ret
31
32.symver f3_v1, f3@v1
deps/lld/test/ELF/Inputs/verneed1.so deleted
Binary files a/deps/lld/test/ELF/Inputs/verneed1.so and /dev/null differ
deps/lld/test/ELF/Inputs/verneed2.s created+5
...@@ -0,0 +1,5 @@
1.globl g1_v1
2g1_v1:
3ret
4
5.symver g1_v1, g1@@v1
deps/lld/test/ELF/Inputs/verneed2.so deleted
Binary files a/deps/lld/test/ELF/Inputs/verneed2.so and /dev/null differ
deps/lld/test/ELF/Inputs/weak-undef-lazy.s created+3
...@@ -0,0 +1,3 @@
1.global foobar
2foobar:
3 nop
deps/lld/test/ELF/Inputs/wrap-no-real.s created+3
...@@ -0,0 +1,3 @@
1.globl foo, __wrap_foo
2foo = 0x11000
3__wrap_foo = 0x11010
deps/lld/test/ELF/Inputs/wrap-no-real2.s created+2
...@@ -0,0 +1,2 @@
1.globl __real_foo
2__real_foo = 0x11020
deps/lld/test/ELF/Inputs/wrap.s+4-1
...@@ -1,4 +1,7 @@...@@ -1,4 +1,7 @@
1.globl foo, __wrap_foo, __real_foo1.global foo
2.weak __wrap_foo
3.protected __wrap_foo
4.global __real_foo
2foo = 0x110005foo = 0x11000
3__wrap_foo = 0x110106__wrap_foo = 0x11010
4__real_foo = 0x110207__real_foo = 0x11020
deps/lld/test/ELF/Inputs/writable-sec-plt-reloc.s created+4
...@@ -0,0 +1,4 @@
1 .global foo
2 .type foo, @function
3foo:
4 retq
deps/lld/test/ELF/Inputs/znotext-copy-relocations.s created+5
...@@ -0,0 +1,5 @@
1.global foo
2.type foo,@object
3.size foo, 8
4foo:
5.quad 42
deps/lld/test/ELF/Inputs/znotext-plt-relocations-protected.s created+5
...@@ -0,0 +1,5 @@
1.global foo
2.type foo,@function
3.protected foo
4foo:
5 nop
deps/lld/test/ELF/Inputs/znotext-plt-relocations.s created+10
...@@ -0,0 +1,10 @@
1.text
2.global atexit
3.type atexit,@function
4atexit:
5 nop
6
7.global foo
8.type foo,@function
9foo:
10 nop
deps/lld/test/ELF/aarch64-abs16.s+1-1
...@@ -24,4 +24,4 @@ _start:...@@ -24,4 +24,4 @@ _start:
24// | FileCheck %s --check-prefix=OVERFLOW24// | FileCheck %s --check-prefix=OVERFLOW
25// RUN: not ld.lld %t.o %t257.o -o %t225// RUN: not ld.lld %t.o %t257.o -o %t2
26// | FileCheck %s --check-prefix=OVERFLOW26// | FileCheck %s --check-prefix=OVERFLOW
27// OVERFLOW: Relocation R_AARCH64_ABS16 out of range27// OVERFLOW: Relocation R_AARCH64_ABS16 out of range: 65536 is not in [-32768, 65535]
deps/lld/test/ELF/aarch64-abs32.s+1-1
...@@ -24,4 +24,4 @@ _start:...@@ -24,4 +24,4 @@ _start:
24// | FileCheck %s --check-prefix=OVERFLOW24// | FileCheck %s --check-prefix=OVERFLOW
25// RUN: not ld.lld %t.o %t257.o -o %t225// RUN: not ld.lld %t.o %t257.o -o %t2
26// | FileCheck %s --check-prefix=OVERFLOW26// | FileCheck %s --check-prefix=OVERFLOW
27// OVERFLOW: Relocation R_AARCH64_ABS32 out of range27// OVERFLOW: Relocation R_AARCH64_ABS32 out of range: 4294967296 is not in [-2147483648, 4294967295]
deps/lld/test/ELF/aarch64-call26-error.s deleted-11
...@@ -1,11 +0,0 @@
1// RUN: llvm-mc -filetype=obj -triple=aarch64-pc-freebsd %S/Inputs/abs.s -o %tabs
2// RUN: llvm-mc -filetype=obj -triple=aarch64-pc-freebsd %s -o %t
3// RUN: not ld.lld %t %tabs -o %t2 2>&1 | FileCheck %s
4// REQUIRES: aarch64
5
6.text
7.globl _start
8_start:
9 bl big
10
11// CHECK: R_AARCH64_CALL26 out of range
deps/lld/test/ELF/aarch64-call26-thunk.s created+21
...@@ -0,0 +1,21 @@
1// RUN: llvm-mc -filetype=obj -triple=aarch64-pc-freebsd %S/Inputs/abs.s -o %tabs
2// RUN: llvm-mc -filetype=obj -triple=aarch64-pc-freebsd %s -o %t
3// RUN: ld.lld %t %tabs -o %t2 2>&1
4// RUN: llvm-objdump -d -triple=aarch64-pc-freebsd %t2 | FileCheck %s
5// REQUIRES: aarch64
6
7.text
8.globl _start
9_start:
10 bl big
11
12// CHECK: Disassembly of section .text:
13// CHECK-NEXT: _start:
14// CHECK-NEXT: 20000: 02 00 00 94 bl #8
15// CHECK: __AArch64AbsLongThunk_big:
16// CHECK-NEXT: 20008: 50 00 00 58 ldr x16, #8
17// CHECK-NEXT: 2000c: 00 02 1f d6 br x16
18// CHECK: $d:
19// CHECK-NEXT: 20010: 00 00 00 00 .word 0x00000000
20// CHECK-NEXT: 20014: 10 00 00 00 .word 0x00000010
21
deps/lld/test/ELF/aarch64-cortex-a53-843419-address.s created+180
...@@ -0,0 +1,180 @@
1// REQUIRES: aarch64
2// RUN: llvm-mc -filetype=obj -triple=aarch64-none-linux %s -o %t.o
3// RUN: echo "SECTIONS { \
4// RUN: .text : { *(.text) *(.text.*) *(.newisd) } \
5// RUN: .text2 : { *.(newos) } \
6// RUN: .data : { *(.data) } }" > %t.script
7// RUN: ld.lld --script %t.script -fix-cortex-a53-843419 -verbose %t.o -o %t2 | FileCheck -check-prefix=CHECK-PRINT %s
8// RUN: llvm-objdump -triple=aarch64-linux-gnu -d %t2 | FileCheck %s
9
10// Test cases for Cortex-A53 Erratum 843419 that involve interactions
11// between the generated patches and the address of sections.
12
13// See ARM-EPM-048406 Cortex_A53_MPCore_Software_Developers_Errata_Notice.pdf
14// for full erratum details.
15// In Summary
16// 1.)
17// ADRP (0xff8 or 0xffc).
18// 2.)
19// - load or store single register or either integer or vector registers.
20// - STP or STNP of either vector or vector registers.
21// - Advanced SIMD ST1 store instruction.
22// - Must not write Rn.
23// 3.) optional instruction, can't be a branch, must not write Rn, may read Rn.
24// 4.) A load or store instruction from the Load/Store register unsigned
25// immediate class using Rn as the base register.
26
27// An aarch64 section can contain ranges of literal data embedded within the
28// code, these ranges are encoded with mapping symbols. This tests that we
29// can match the erratum sequence in code, but not data.
30// - We can handle more than one patch per code range (denoted by mapping
31// symbols).
32// - We can handle a patch in more than range of code, with literal data
33// inbetween.
34// - We can handle redundant mapping symbols (two or more consecutive mapping
35// symbols with the same type).
36// - We can ignore erratum sequences in multiple literal data ranges.
37
38// CHECK-PRINT: detected cortex-a53-843419 erratum sequence starting at FF8 in unpatched output.
39// CHECK: t3_ff8_ldr:
40// CHECK-NEXT: ff8: 20 00 00 d0 adrp x0, #24576
41// CHECK-NEXT: ffc: 21 00 40 f9 ldr x1, [x1]
42// CHECK-NEXT: 1000: f9 0f 00 14 b #16356
43// CHECK-NEXT: 1004: c0 03 5f d6 ret
44 .section .text.01, "ax", %progbits
45 .balign 4096
46 .space 4096 - 8
47 .globl t3_ff8_ldr
48 .type t3_ff8_ldr, %function
49t3_ff8_ldr:
50 adrp x0, dat
51 ldr x1, [x1, #0]
52 ldr x0, [x0, :got_lo12:dat]
53 ret
54
55 // create a redundant mapping symbol as we are already in a $x range
56 // some object producers unconditionally generate a mapping symbol on
57 // every symbol so we need to handle the case of $x $x.
58 .local $x.999
59$x.999:
60// CHECK-PRINT-NEXT: detected cortex-a53-843419 erratum sequence starting at 1FFC in unpatched output.
61// CHECK: t3_ffc_ldrsimd:
62// CHECK-NEXT: 1ffc: 20 00 00 b0 adrp x0, #20480
63// CHECK-NEXT: 2000: 21 00 40 bd ldr s1, [x1]
64// CHECK-NEXT: 2004: fa 0b 00 14 b #12264
65// CHECK-NEXT: 2008: c0 03 5f d6 ret
66 .globl t3_ffc_ldrsimd
67 .type t3_ffc_ldrsimd, %function
68 .space 4096 - 12
69t3_ffc_ldrsimd:
70 adrp x0, dat
71 ldr s1, [x1, #0]
72 ldr x2, [x0, :got_lo12:dat]
73 ret
74
75// Inline data containing bit pattern of erratum sequence, expect no patch.
76 .globl t3_ffc_ldralldata
77 .type t3_ff8_ldralldata, %function
78 .space 4096 - 20
79t3_ff8_ldralldata:
80 // 0x90000000 = adrp x0, #0
81 .byte 0x00
82 .byte 0x00
83 .byte 0x00
84 .byte 0x90
85 // 0xf9400021 = ldr x1, [x1]
86 .byte 0x21
87 .byte 0x00
88 .byte 0x40
89 .byte 0xf9
90 // 0xf9400000 = ldr x0, [x0]
91 .byte 0x00
92 .byte 0x00
93 .byte 0x40
94 .byte 0xf9
95 // Check that we can recognise the erratum sequence post literal data.
96
97// CHECK-PRINT-NEXT: detected cortex-a53-843419 erratum sequence starting at 3FF8 in unpatched output.
98// CHECK: t3_ffc_ldr:
99// CHECK-NEXT: 3ff8: 00 00 00 f0 adrp x0, #12288
100// CHECK-NEXT: 3ffc: 21 00 40 f9 ldr x1, [x1]
101// CHECK-NEXT: 4000: fd 03 00 14 b #4084
102// CHECK-NEXT: 4004: c0 03 5f d6 ret
103 .space 4096 - 12
104 .globl t3_ffc_ldr
105 .type t3_ffc_ldr, %function
106 t3_ffc_ldr:
107 adrp x0, dat
108 ldr x1, [x1, #0]
109 ldr x0, [x0, :got_lo12:dat]
110 ret
111
112// CHECK: __CortexA53843419_1000:
113// CHECK-NEXT: 4fe4: 00 0c 40 f9 ldr x0, [x0, #24]
114// CHECK-NEXT: 4fe8: 07 f0 ff 17 b #-16356
115// CHECK: __CortexA53843419_2004:
116// CHECK-NEXT: 4fec: 02 0c 40 f9 ldr x2, [x0, #24]
117// CHECK-NEXT: 4ff0: 06 f4 ff 17 b #-12264
118// CHECK: __CortexA53843419_4000:
119// CHECK-NEXT: 4ff4: 00 0c 40 f9 ldr x0, [x0, #24]
120// CHECK-NEXT: 4ff8: 03 fc ff 17 b #-4084
121
122 .section .text.02, "ax", %progbits
123 .space 4096 - 36
124
125 // Start a new InputSectionDescription (see Linker Script) so the
126 // start address will be affected by any patches added to previous
127 // InputSectionDescription.
128
129// CHECK-PRINT-NEXT: detected cortex-a53-843419 erratum sequence starting at 4FFC in unpatched output
130// CHECK: t3_ffc_str:
131// CHECK-NEXT: 4ffc: 00 00 00 d0 adrp x0, #8192
132// CHECK-NEXT: 5000: 21 00 00 f9 str x1, [x1]
133// CHECK-NEXT: 5004: fb 03 00 14 b #4076
134// CHECK-NEXT: 5008: c0 03 5f d6 ret
135
136 .section .newisd, "ax", %progbits
137 .globl t3_ffc_str
138 .type t3_ffc_str, %function
139t3_ffc_str:
140 adrp x0, dat
141 str x1, [x1, #0]
142 ldr x0, [x0, :got_lo12:dat]
143 ret
144 .space 4096 - 28
145
146// CHECK: __CortexA53843419_5004:
147// CHECK-NEXT: 5ff0: 00 0c 40 f9 ldr x0, [x0, #24]
148// CHECK-NEXT: 5ff4: 05 fc ff 17 b #-4076
149
150 // Start a new OutputSection (see Linker Script) so the
151 // start address will be affected by any patches added to previous
152 // InputSectionDescription.
153
154//CHECK-PRINT-NEXT: detected cortex-a53-843419 erratum sequence starting at 5FF8 in unpatched output
155// CHECK: t3_ff8_str:
156// CHECK-NEXT: 5ff8: 00 00 00 b0 adrp x0, #4096
157// CHECK-NEXT: 5ffc: 21 00 00 f9 str x1, [x1]
158// CHECK-NEXT: 6000: 03 00 00 14 b #12
159// CHECK-NEXT: 6004: c0 03 5f d6 ret
160
161 .section .newos, "ax", %progbits
162 .globl t3_ff8_str
163 .type t3_ff8_str, %function
164t3_ff8_str:
165 adrp x0, dat
166 str x1, [x1, #0]
167 ldr x0, [x0, :got_lo12:dat]
168 ret
169 .globl _start
170 .type _start, %function
171_start:
172 ret
173
174// CHECK: __CortexA53843419_6000:
175// CHECK-NEXT: 600c: 00 0c 40 f9 ldr x0, [x0, #24]
176// CHECK-NEXT: 6010: fd ff ff 17 b #-12
177
178 .data
179 .globl dat
180dat: .word 0
deps/lld/test/ELF/aarch64-cortex-a53-843419-cli.s created+10
...@@ -0,0 +1,10 @@
1// REQUIRES: x86
2// RUN: llvm-mc -filetype=obj -triple=x86_64-unknown-linux %s -o %t
3// RUN: not ld.lld %t -fix-cortex-a53-843419 -o %t2 2>&1 | FileCheck %s
4
5// CHECK: --fix-cortex-a53-843419 is only supported on AArch64 targets.
6.globl entry
7.text
8 .quad 0
9entry:
10 ret
deps/lld/test/ELF/aarch64-cortex-a53-843419-large.s created+115
...@@ -0,0 +1,115 @@
1// REQUIRES: aarch64
2// RUN: llvm-mc -filetype=obj -triple=aarch64-none-linux %s -o %t.o
3// RUN: ld.lld --fix-cortex-a53-843419 %t.o -o %t2
4// RUN: llvm-objdump -triple=aarch64-linux-gnu -d %t2 -start-address=131072 -stop-address=131084 | FileCheck --check-prefix=CHECK1 %s
5// RUN: llvm-objdump -triple=aarch64-linux-gnu -d %t2 -start-address=135168 -stop-address=135172 | FileCheck --check-prefix=CHECK2 %s
6// RUN: llvm-objdump -triple=aarch64-linux-gnu -d %t2 -start-address=139256 -stop-address=139272 | FileCheck --check-prefix=CHECK3 %s
7// RUN: llvm-objdump -triple=aarch64-linux-gnu -d %t2 -start-address=67256312 -stop-address=67256328 | FileCheck --check-prefix=CHECK4 %s
8// RUN: llvm-objdump -triple=aarch64-linux-gnu -d %t2 -start-address=100810760 -stop-address=100810776 | FileCheck --check-prefix=CHECK5 %s
9// RUN: llvm-objdump -triple=aarch64-linux-gnu -d %t2 -start-address=134352908 -stop-address=134352912 | FileCheck --check-prefix=CHECK6 %s
10// RUN: llvm-objdump -triple=aarch64-linux-gnu -d %t2 -start-address=134356988 -stop-address=134357012 | FileCheck --check-prefix=CHECK7 %s
11// Test case for Cortex-A53 Erratum 843419 in an OutputSection exceeding
12// the maximum branch range. Both range extension thunks and patches are
13// required.
14
15// CHECK1: __AArch64AbsLongThunk_need_thunk_after_patch:
16// CHECK1-NEXT: 20000: 50 00 00 58 ldr x16, #8
17// CHECK1-NEXT: 20004: 00 02 1f d6 br x16
18// CHECK1: $d:
19// CHECK1-NEXT: 20008: 0c 10 02 08 .word 0x0802100c
20
21 .section .text.01, "ax", %progbits
22 .balign 4096
23 .globl _start
24 .type _start, %function
25_start:
26 // Expect thunk on pass 2
27 bl need_thunk_after_patch
28 .section .text.02, "ax", %progbits
29 .space 4096 - 12
30
31// CHECK2: _start:
32// CHECK2-NEXT: 21000: 00 fc ff 97 bl #-4096
33
34 // Expect patch on pass 1
35 .section .text.03, "ax", %progbits
36 .globl t3_ff8_ldr
37 .type t3_ff8_ldr, %function
38t3_ff8_ldr:
39 adrp x0, dat
40 ldr x1, [x1, #0]
41 ldr x0, [x0, :got_lo12:dat]
42 ret
43
44// CHECK3: t3_ff8_ldr:
45// CHECK3-NEXT: 21ff8: 60 00 04 f0 adrp x0, #134279168
46// CHECK3-NEXT: 21ffc: 21 00 40 f9 ldr x1, [x1]
47// CHECK3-NEXT: 22000: 02 08 80 15 b #100671496
48// CHECK3-NEXT: 22004: c0 03 5f d6 ret
49
50 .section .text.04, "ax", %progbits
51 .space 64 * 1024 * 1024
52
53 // Expect patch on pass 1
54 .section .text.05, "ax", %progbits
55 .balign 4096
56 .space 4096 - 8
57 .globl t3_ff8_str
58 .type t3_ff8_str, %function
59t3_ff8_str:
60 adrp x0, dat
61 ldr x1, [x1, #0]
62 str x0, [x0, :got_lo12:dat]
63 ret
64
65// CHECK4: t3_ff8_str:
66// CHECK4-NEXT: 4023ff8: 60 00 02 b0 adrp x0, #67162112
67// CHECK4-NEXT: 4023ffc: 21 00 40 f9 ldr x1, [x1]
68// CHECK4-NEXT: 4024000: 04 00 80 14 b #33554448
69// CHECK4-NEXT: 4024004: c0 03 5f d6 ret
70
71 .section .text.06, "ax", %progbits
72 .space 32 * 1024 * 1024
73
74// CHECK5: __CortexA53843419_21000:
75// CHECK5-NEXT: 6024008: 00 00 40 f9 ldr x0, [x0]
76// CHECK5-NEXT: 602400c: fe f7 7f 16 b #-100671496
77// CHECK5: __CortexA53843419_4023000:
78// CHECK5-NEXT: 6024010: 00 00 00 f9 str x0, [x0]
79// CHECK5-NEXT: 6024014: fc ff 7f 17 b #-33554448
80
81 .section .text.07, "ax", %progbits
82 .space (32 * 1024 * 1024) - 12300
83
84 .section .text.08, "ax", %progbits
85 .globl need_thunk_after_patch
86 .type need_thunk_after_patch, %function
87need_thunk_after_patch:
88 ret
89
90// CHECK6: need_thunk_after_patch:
91// CHECK6-NEXT: 802100c: c0 03 5f d6 ret
92
93 // Will need a patch on pass 2
94 .section .text.09, "ax", %progbits
95 .space 4096 - 20
96 .globl t3_ffc_ldr
97 .type t3_ffc_ldr, %function
98t3_ffc_ldr:
99 adrp x0, dat
100 ldr x1, [x1, #0]
101 ldr x0, [x0, :got_lo12:dat]
102 ret
103
104// CHECK7: t3_ffc_ldr:
105// CHECK7-NEXT: 8021ffc: 60 00 00 f0 adrp x0, #61440
106// CHECK7-NEXT: 8022000: 21 00 40 f9 ldr x1, [x1]
107// CHECK7-NEXT: 8022004: 02 00 00 14 b #8
108// CHECK7-NEXT: 8022008: c0 03 5f d6 ret
109// CHECK7: __CortexA53843419_8022004:
110// CHECK7-NEXT: 802200c: 00 00 40 f9 ldr x0, [x0]
111// CHECK7-NEXT: 8022010: fe ff ff 17 b #-8
112
113 .section .data
114 .globl dat
115dat: .quad 0
deps/lld/test/ELF/aarch64-cortex-a53-843419-nopatch.s created+338
...@@ -0,0 +1,338 @@
1// REQUIRES: aarch64
2// RUN: llvm-mc -filetype=obj -triple=aarch64-none-linux %s -o %t.o
3// RUN: ld.lld -fix-cortex-a53-843419 -verbose -t %t.o -o %t2 | FileCheck %s
4// Test cases for Cortex-A53 Erratum 843419 that we don't expect to recognize
5// as needing a patch as one or more of the conditions isn't satisfied.
6// See ARM-EPM-048406 Cortex_A53_MPCore_Software_Developers_Errata_Notice.pdf
7// for full erratum details.
8// In Summary
9// 1.)
10// ADRP (0xff8 or 0xffc)
11// 2.)
12// - load or store single register or either integer or vector registers
13// - STP or STNP of either vector or vector registers
14// - Advanced SIMD ST1 store instruction
15// Must not write Rn
16// 3.) optional instruction, can't be a branch, must not write Rn, may read Rn
17// 4.) A load or store instruction from the Load/Store register unsigned
18// immediate class using Rn as the base register
19
20// Expect no patches detected.
21// CHECK-NOT: detected cortex-a53-843419 erratum sequence
22
23// erratum sequence but adrp (address & 0xfff) is not 0xff8 or 0xffc
24 .section .text.01, "ax", %progbits
25 .balign 4096
26 .globl t3_0_ldr
27 .type t3_ff8_ldr, %function
28t3_0_ldr:
29 adrp x0, dat
30 ldr x1, [x1, #0]
31 ldr x0, [x0, :got_lo12:dat]
32 ret
33
34 .section .text.02, "ax", %progbits
35 .balign 4096
36 .globl t3_ff4_ldr
37 .space 4096 - 12
38 .type t3_ff4_ldr, %function
39t3_ff4_ldr:
40 adrp x0, dat
41 ldr x1, [x1, #0]
42 ldr x0, [x0, :got_lo12:dat]
43 ret
44
45// Close matches for erratum sequence, with adrp at correct address but
46// instruction 2 is a load or store but not one that matches the erratum
47// conditions, but with a similar encoding to an instruction that does.
48
49 // ldp is not part of sequence, although stp is.
50 .section .text.03, "ax", %progbits
51 .balign 4096
52 .globl t3_ff8_ldp
53 .type t3_ff8_ldp, %function
54 .space 4096 - 8
55t3_ff8_ldp:
56 adrp x16, dat
57 ldp x1,x2, [x3, #0]
58 ldr x13, [x16, :got_lo12:dat]
59 ret
60
61 // st2 is not part of sequence although st1 is.
62 .section .text.04, "ax", %progbits
63 .balign 4096
64 .globl t3_ffc_st2
65 .type t3_ffc_st2, %function
66 .space 4096 - 4
67t3_ffc_st2:
68 adrp x16, dat
69 st2 { v0.16b, v1.16b }, [x1]
70 ldr x13, [x16, :got_lo12:dat]
71 ret
72
73 // st3 is not part of sequence although st1 is.
74 .section .text.05, "ax", %progbits
75 .balign 4096
76 .globl t3_ffc_st3
77 .type t3_ffc_st3, %function
78 .space 4096 - 4
79t3_ffc_st3:
80 adrp x16, dat
81 st3 { v0.16b, v1.16b, v2.16b }, [x1], x2
82 ldr x13, [x16, :got_lo12:dat]
83 ret
84
85 // ld1 is not part of sequence although st1 is.
86 .section .text.06, "ax", %progbits
87 .balign 4096
88 .globl t3_ffc_ld2
89 .type t3_ffc_st3, %function
90 .space 4096 - 4
91t3_ffc_ld1:
92 adrp x16, dat
93 ld1 { v0.16b }, [x2], x3
94 ldr x13, [x16, :got_lo12:dat]
95 ret
96
97 // ldnp is not part of sequence although stnp is.
98 .section .text.07, "ax", %progbits
99 .balign 4096
100 .globl t4_ff8_ldnp
101 .type t4_ff8_ldnp, %function
102 .space 4096 - 8
103t4_ff8_ldnp:
104 adrp x7, dat
105 ldnp x1,x2, [x3, #0]
106 nop
107 ldr x10, [x7, :got_lo12:dat]
108 ret
109
110// Close match for erratum sequence, with adrp at correct address but
111// instruction 2 writes to Rn, with Rn as either destination or as the
112// transfer register but with writeback.
113
114 // ldr instruction writes to Rn
115 .section .text.08, "ax", %progbits
116 .balign 4096
117 .globl t3_ff8_ldr
118 .type t3_ff8_ldr, %function
119 .space 4096 - 8
120t3_ff8_ldr:
121 adrp x0, dat
122 ldr x0, [x1, #0]
123 ldr x0, [x0, :got_lo12:dat]
124 ret
125
126 // str instruction writes to Rn via writeback (pre index)
127 .section .text.09, "ax", %progbits
128 .balign 4096
129 .globl t3_ff8_str
130 .type t3_ff8_str, %function
131 .space 4096 - 8
132t3_ff8_str:
133 adrp x0, dat
134 str x1, [x0, #4]!
135 ldr x0, [x0, :got_lo12:dat]
136 ret
137
138 // ldr instruction writes to Rn via writeback (post index)
139 .section .text.09, "ax", %progbits
140 .balign 4096
141 .globl t3_ffc_ldr
142 .type t3_ffc_ldr, %function
143 .space 4096 - 8
144t3_ffc_ldr:
145 adrp x0, dat
146 ldr x1, [x0], 0x8
147 ldr x0, [x0, :got_lo12:dat]
148 ret
149
150 // stp writes to Rn via writeback (pre index)
151 .section .text.10, "ax", %progbits
152 .balign 4096
153 .globl t4_ffc_stppre
154 .type t4_ffc_stppre, %function
155 .space 4096 - 4
156t4_ffc_stppre:
157 adrp x16, dat
158 stp x1,x2, [x16, #16]!
159 mul x3, x16, x16
160 ldr x14, [x16, #8]
161 ret
162
163 // stp writes to Rn via writeback (post index)
164 .section .text.11, "ax", %progbits
165 .balign 4096
166 .globl t4_ff8_stppost
167 .type t4_ff8_stppost, %function
168 .space 4096 - 8
169t4_ff8_stppost:
170 adrp x16, dat
171 stp x1,x2, [x16], #16
172 mul x3, x16, x16
173 ldr x14, [x16, #8]
174 ret
175
176 // st1 writes to Rn via writeback
177 .section .text.12, "ax", %progbits
178 .balign 4096
179 .globl t3_ff8_st1
180 .type t3_ff8_st1, %function
181 .space 4096 - 8
182t3_ff8_st1:
183 adrp x16, dat
184 st1 { v0.16b}, [x16], x2
185 ldr x13, [x16, :got_lo12:dat]
186 ret
187
188// Close match for erratum sequence, but with optional instruction 3 a branch
189
190 // function call via immediate
191 .section .text.13, "ax", %progbits
192 .balign 4096
193 .globl t4_ffc_blimm
194 .type t4_ffc_blimm, %function
195 .space 4096 - 4
196t4_ffc_blimm:
197 adrp x7, dat
198 stnp x1,x2, [x3, #0]
199 bl t4_ffc_blimm
200 ldr x10, [x7, :got_lo12:dat]
201 ret
202
203 // function call via register
204 .section .text.14, "ax", %progbits
205 .balign 4096
206 .globl t4_ffc_blreg
207 .type t4_ffc_blreg, %function
208 .space 4096 - 4
209t4_ffc_blreg:
210 adrp x7, dat
211 stnp x1,x2, [x3, #0]
212 blr x4
213 ldr x10, [x7, :got_lo12:dat]
214 ret
215
216 // Unconditional branch immediate
217 .section .text.15, "ax", %progbits
218 .balign 4096
219 .globl t4_ffc_branchimm
220 .type t4_ffc_branchimm, %function
221 .space 4096 - 4
222t4_ffc_branchimm:
223 adrp x7, dat
224 stnp x1,x2, [x3, #0]
225 b t4_ffc_branchimm
226 ldr x10, [x7, :got_lo12:dat]
227 ret
228
229 // Unconditional branch register
230 .section .text.16, "ax", %progbits
231 .balign 4096
232 .globl t4_ffc_branchreg
233 .type t4_ffc_branchreg, %function
234 .space 4096 - 4
235t4_ffc_branchreg:
236 adrp x7, dat
237 stnp x1,x2, [x3, #0]
238 br x4
239 ldr x10, [x7, :got_lo12:dat]
240 ret
241
242 // Conditional branch
243 .section .text.17, "ax", %progbits
244 .balign 4096
245 .globl t4_ffc_branchcond
246 .type t4_ffc_branchcond, %function
247 .space 4096 - 4
248t4_ffc_branchcond:
249 adrp x7, dat
250 stnp x1,x2, [x3, #0]
251 cbz x5, t4_ffc_branchcond
252 ldr x10, [x7, :got_lo12:dat]
253 ret
254
255 // Conditional branch immediate
256 .section .text.18, "ax", %progbits
257 .balign 4096
258 .globl t4_ffc_branchcondimm
259 .type t4_ffc_branchcondimm, %function
260 .space 4096 - 4
261t4_ffc_branchcondimm:
262 adrp x7, dat
263 stnp x1,x2, [x3, #0]
264 beq t4_ffc_branchcondimm
265 ldr x10, [x7, :got_lo12:dat]
266 ret
267
268// Bitpattern matches erratum sequence but either all or part of the sequence
269// is in inline literal data
270 .section .text.19, "ax", %progbits
271 .balign 4096
272 .globl t3_ffc_ldrtraildata
273 .type t3_ff8_ldrtraildata, %function
274 .space 4096 - 8
275t3_ff8_ldrtraildata:
276 adrp x0, dat
277 ldr x1, [x1, #0]
278 // 0xf9400000 = ldr x0, [x0]
279 .byte 0x00
280 .byte 0x00
281 .byte 0x40
282 .byte 0xf9
283 ldr x0, [x0, :got_lo12:dat]
284 ret
285
286 .section .text.20, "ax", %progbits
287 .balign 4096
288 .globl t3_ffc_ldrpredata
289 .type t3_ff8_ldrpredata, %function
290 .space 4096 - 8
291t3_ff8_ldrpredata:
292 // 0x90000000 = adrp x0, #0
293 .byte 0x00
294 .byte 0x00
295 .byte 0x00
296 .byte 0x90
297 ldr x1, [x1, #0]
298 ldr x0, [x0, :got_lo12:dat]
299 ret
300
301 .section .text.21, "ax", %progbits
302 .balign 4096
303 .globl t3_ffc_ldralldata
304 .type t3_ff8_ldralldata, %function
305 .space 4096 - 8
306t3_ff8_ldralldata:
307 // 0x90000000 = adrp x0, #0
308 .byte 0x00
309 .byte 0x00
310 .byte 0x00
311 .byte 0x90
312 // 0xf9400021 = ldr x1, [x1]
313 .byte 0x21
314 .byte 0x00
315 .byte 0x40
316 .byte 0xf9
317 // 0xf9400000 = ldr x0, [x0]
318 .byte 0x00
319 .byte 0x00
320 .byte 0x40
321 .byte 0xf9
322
323 ret
324
325 .text
326 .globl _start
327 .type _start, %function
328_start:
329 ret
330
331
332
333
334
335// Bitpattern matches erratum sequence but section is not executable
336 .data
337 .globl dat
338dat: .word 0
deps/lld/test/ELF/aarch64-cortex-a53-843419-recognize.s created+563
...@@ -0,0 +1,563 @@
1// REQUIRES: aarch64
2// RUN: llvm-mc -filetype=obj -triple=aarch64-none-linux %s -o %t.o
3// RUN: ld.lld -fix-cortex-a53-843419 -verbose %t.o -o %t2 | FileCheck -check-prefix CHECK-PRINT %s
4// RUN: llvm-objdump -triple=aarch64-linux-gnu -d %t2 | FileCheck %s -check-prefixes=CHECK,CHECK-FIX
5// RUN: ld.lld -verbose %t.o -o %t3
6// RUN: llvm-objdump -triple=aarch64-linux-gnu -d %t3 | FileCheck %s -check-prefixes=CHECK,CHECK-NOFIX
7// Test cases for Cortex-A53 Erratum 843419
8// See ARM-EPM-048406 Cortex_A53_MPCore_Software_Developers_Errata_Notice.pdf
9// for full erratum details.
10// In Summary
11// 1.)
12// ADRP (0xff8 or 0xffc).
13// 2.)
14// - load or store single register or either integer or vector registers.
15// - STP or STNP of either vector or vector registers.
16// - Advanced SIMD ST1 store instruction.
17// - Must not write Rn.
18// 3.) optional instruction, can't be a branch, must not write Rn, may read Rn.
19// 4.) A load or store instruction from the Load/Store register unsigned
20// immediate class using Rn as the base register.
21
22// Each section contains a sequence of instructions that should be recognized
23// as erratum 843419. The test cases cover the major variations such as:
24// - adrp starts at 0xfff8 or 0xfffc.
25// - Variations in instruction class for instruction 2.
26// - Optional instruction 3 present or not.
27// - Load or store for instruction 4.
28
29// CHECK-PRINT: detected cortex-a53-843419 erratum sequence starting at 21FF8 in unpatched output.
30// CHECK: t3_ff8_ldr:
31// CHECK-NEXT: 21ff8: e0 01 00 f0 adrp x0, #258048
32// CHECK-NEXT: 21ffc: 21 00 40 f9 ldr x1, [x1]
33// CHECK-FIX: 22000: 03 b8 00 14 b #188428
34// CHECK-NOFIX: 22000: 00 00 40 f9 ldr x0, [x0]
35// CHECK-NEXT: 22004: c0 03 5f d6 ret
36 .section .text.01, "ax", %progbits
37 .balign 4096
38 .globl t3_ff8_ldr
39 .type t3_ff8_ldr, %function
40 .space 4096 - 8
41t3_ff8_ldr:
42 adrp x0, dat1
43 ldr x1, [x1, #0]
44 ldr x0, [x0, :got_lo12:dat1]
45 ret
46
47// CHECK-PRINT: detected cortex-a53-843419 erratum sequence starting at 23FF8 in unpatched output.
48// CHECK: t3_ff8_ldrsimd:
49// CHECK-NEXT: 23ff8: e0 01 00 b0 adrp x0, #249856
50// CHECK-NEXT: 23ffc: 21 00 40 bd ldr s1, [x1]
51// CHECK-FIX: 24000: 05 b0 00 14 b #180244
52// CHECK-NOFIX: 24000: 02 04 40 f9 ldr x2, [x0, #8]
53// CHECK-NEXT: 24004: c0 03 5f d6 ret
54 .section .text.02, "ax", %progbits
55 .balign 4096
56 .globl t3_ff8_ldrsimd
57 .type t3_ff8_ldrsimd, %function
58 .space 4096 - 8
59t3_ff8_ldrsimd:
60 adrp x0, dat2
61 ldr s1, [x1, #0]
62 ldr x2, [x0, :got_lo12:dat2]
63 ret
64
65// CHECK-PRINT: detected cortex-a53-843419 erratum sequence starting at 25FFC in unpatched output.
66// CHECK: t3_ffc_ldrpost:
67// CHECK-NEXT: 25ffc: c0 01 00 f0 adrp x0, #241664
68// CHECK-NEXT: 26000: 21 84 40 bc ldr s1, [x1], #8
69// CHECK-FIX: 26004: 06 a8 00 14 b #172056
70// CHECK-NOFIX: 26004: 03 08 40 f9 ldr x3, [x0, #16]
71// CHECK-NEXT: 26008: c0 03 5f d6 ret
72 .section .text.03, "ax", %progbits
73 .balign 4096
74 .globl t3_ffc_ldrpost
75 .type t3_ffc_ldrpost, %function
76 .space 4096 - 4
77t3_ffc_ldrpost:
78 adrp x0, dat3
79 ldr s1, [x1], #8
80 ldr x3, [x0, :got_lo12:dat3]
81 ret
82
83// CHECK-PRINT: detected cortex-a53-843419 erratum sequence starting at 27FF8 in unpatched output.
84// CHECK: t3_ff8_strpre:
85// CHECK-NEXT: 27ff8: c0 01 00 b0 adrp x0, #233472
86// CHECK-NEXT: 27ffc: 21 8c 00 bc str s1, [x1, #8]!
87// CHECK-FIX: 28000: 09 a0 00 14 b #163876
88// CHECK-NOFIX: 28000: 02 00 40 f9 ldr x2, [x0]
89// CHECK-NEXT: 28004: c0 03 5f d6 ret
90 .section .text.04, "ax", %progbits
91 .balign 4096
92 .globl t3_ff8_strpre
93 .type t3_ff8_strpre, %function
94 .space 4096 - 8
95t3_ff8_strpre:
96 adrp x0, dat1
97 str s1, [x1, #8]!
98 ldr x2, [x0, :lo12:dat1]
99 ret
100
101// CHECK-PRINT: detected cortex-a53-843419 erratum sequence starting at 29FFC in unpatched output.
102// CHECK: t3_ffc_str:
103// CHECK-NEXT: 29ffc: bc 01 00 f0 adrp x28, #225280
104// CHECK-NEXT: 2a000: 42 00 00 f9 str x2, [x2]
105// CHECK-FIX: 2a004: 0a 98 00 14 b #155688
106// CHECK-NOFIX: 2a004: 9c 07 00 f9 str x28, [x28, #8]
107// CHECK-NEXT: 2a008: c0 03 5f d6 ret
108 .section .text.05, "ax", %progbits
109 .balign 4096
110 .globl t3_ffc_str
111 .type t3_ffc_str, %function
112 .space 4096 - 4
113t3_ffc_str:
114 adrp x28, dat2
115 str x2, [x2, #0]
116 str x28, [x28, :lo12:dat2]
117 ret
118
119// CHECK-PRINT: detected cortex-a53-843419 erratum sequence starting at 2BFFC in unpatched output.
120// CHECK: t3_ffc_strsimd:
121// CHECK-NEXT: 2bffc: bc 01 00 b0 adrp x28, #217088
122// CHECK-NEXT: 2c000: 44 00 00 b9 str w4, [x2]
123// CHECK-FIX: 2c004: 0c 90 00 14 b #147504
124// CHECK-NOFIX: 2c004: 84 0b 00 f9 str x4, [x28, #16]
125// CHECK-NEXT: 2c008: c0 03 5f d6 ret
126 .section .text.06, "ax", %progbits
127 .balign 4096
128 .globl t3_ffc_strsimd
129 .type t3_ffc_strsimd, %function
130 .space 4096 - 4
131t3_ffc_strsimd:
132 adrp x28, dat3
133 str w4, [x2, #0]
134 str x4, [x28, :lo12:dat3]
135 ret
136
137// CHECK-PRINT: detected cortex-a53-843419 erratum sequence starting at 2DFF8 in unpatched output.
138// CHECK: t3_ff8_ldrunpriv:
139// CHECK-NEXT: 2dff8: 9d 01 00 f0 adrp x29, #208896
140// CHECK-NEXT: 2dffc: 41 08 40 38 ldtrb w1, [x2]
141// CHECK-FIX: 2e000: 0f 88 00 14 b #139324
142// CHECK-NOFIX: 2e000: bd 03 40 f9 ldr x29, [x29]
143// CHECK-NEXT: 2e004: c0 03 5f d6 ret
144 .section .text.07, "ax", %progbits
145 .balign 4096
146 .globl t3_ff8_ldrunpriv
147 .type t3_ff8_ldrunpriv, %function
148 .space 4096 - 8
149t3_ff8_ldrunpriv:
150 adrp x29, dat1
151 ldtrb w1, [x2, #0]
152 ldr x29, [x29, :got_lo12:dat1]
153 ret
154
155// CHECK-PRINT: detected cortex-a53-843419 erratum sequence starting at 2FFFC in unpatched output.
156// CHECK: t3_ffc_ldur:
157// CHECK-NEXT: 2fffc: 9d 01 00 b0 adrp x29, #200704
158// CHECK-NEXT: 30000: 42 40 40 b8 ldur w2, [x2, #4]
159// CHECK-FIX: 30004: 10 80 00 14 b #131136
160// CHECK-NOFIX: 30004: bd 07 40 f9 ldr x29, [x29, #8]
161// CHECK-NEXT: 30008: c0 03 5f d6 ret
162 .balign 4096
163 .globl t3_ffc_ldur
164 .type t3_ffc_ldur, %function
165 .space 4096 - 4
166t3_ffc_ldur:
167 adrp x29, dat2
168 ldur w2, [x2, #4]
169 ldr x29, [x29, :got_lo12:dat2]
170 ret
171
172// CHECK-PRINT: detected cortex-a53-843419 erratum sequence starting at 31FFC in unpatched output.
173// CHECK: t3_ffc_sturh:
174// CHECK-NEXT: 31ffc: 72 01 00 f0 adrp x18, #192512
175// CHECK-NEXT: 32000: 43 40 00 78 sturh w3, [x2, #4]
176// CHECK-FIX: 32004: 12 78 00 14 b #122952
177// CHECK-NOFIX: 32004: 41 0a 40 f9 ldr x1, [x18, #16]
178// CHECK-NEXT: 32008: c0 03 5f d6 ret
179 .section .text.09, "ax", %progbits
180 .balign 4096
181 .globl t3_ffc_sturh
182 .type t3_ffc_sturh, %function
183 .space 4096 - 4
184t3_ffc_sturh:
185 adrp x18, dat3
186 sturh w3, [x2, #4]
187 ldr x1, [x18, :got_lo12:dat3]
188 ret
189
190// CHECK-PRINT: detected cortex-a53-843419 erratum sequence starting at 33FF8 in unpatched output.
191// CHECK: t3_ff8_literal:
192// CHECK-NEXT: 33ff8: 72 01 00 b0 adrp x18, #184320
193// CHECK-NEXT: 33ffc: e3 ff ff 58 ldr x3, #-4
194// CHECK-FIX: 34000: 15 70 00 14 b #114772
195// CHECK-NOFIX: 34000: 52 02 40 f9 ldr x18, [x18]
196// CHECK-NEXT: 34004: c0 03 5f d6 ret
197 .section .text.10, "ax", %progbits
198 .balign 4096
199 .globl t3_ff8_literal
200 .type t3_ff8_literal, %function
201 .space 4096 - 8
202t3_ff8_literal:
203 adrp x18, dat1
204 ldr x3, t3_ff8_literal
205 ldr x18, [x18, :lo12:dat1]
206 ret
207
208// CHECK-PRINT: detected cortex-a53-843419 erratum sequence starting at 35FFC in unpatched output.
209// CHECK: t3_ffc_register:
210// CHECK-NEXT: 35ffc: 4f 01 00 f0 adrp x15, #176128
211// CHECK-NEXT: 36000: 43 68 61 f8 ldr x3, [x2, x1]
212// CHECK-FIX: 36004: 16 68 00 14 b #106584
213// CHECK-NOFIX: 36004: ea 05 40 f9 ldr x10, [x15, #8]
214// CHECK-NEXT: 36008: c0 03 5f d6 ret
215 .section .text.11, "ax", %progbits
216 .balign 4096
217 .globl t3_ffc_register
218 .type t3_ffc_register, %function
219 .space 4096 - 4
220t3_ffc_register:
221 adrp x15, dat2
222 ldr x3, [x2, x1]
223 ldr x10, [x15, :lo12:dat2]
224 ret
225
226// CHECK-PRINT: detected cortex-a53-843419 erratum sequence starting at 37FF8 in unpatched output.
227// CHECK: t3_ff8_stp:
228// CHECK-NEXT: 37ff8: 50 01 00 b0 adrp x16, #167936
229// CHECK-NEXT: 37ffc: 61 08 00 a9 stp x1, x2, [x3]
230// CHECK-FIX: 38000: 19 60 00 14 b #98404
231// CHECK-NOFIX: 38000: 0d 0a 40 f9 ldr x13, [x16, #16]
232// CHECK-NEXT: 38004: c0 03 5f d6 ret
233 .section .text.12, "ax", %progbits
234 .balign 4096
235 .globl t3_ff8_stp
236 .type t3_ff8_stp, %function
237 .space 4096 - 8
238t3_ff8_stp:
239 adrp x16, dat3
240 stp x1,x2, [x3, #0]
241 ldr x13, [x16, :lo12:dat3]
242 ret
243
244// CHECK-PRINT: detected cortex-a53-843419 erratum sequence starting at 39FFC in unpatched output.
245// CHECK: t3_ffc_stnp:
246// CHECK-NEXT: 39ffc: 27 01 00 f0 adrp x7, #159744
247// CHECK-NEXT: 3a000: 61 08 00 a8 stnp x1, x2, [x3]
248// CHECK-FIX: 3a004: 1a 58 00 14 b #90216
249// CHECK-NOFIX: 3a004: e9 00 40 f9 ldr x9, [x7]
250// CHECK-NEXT: 3a008: c0 03 5f d6 ret
251 .section .text.13, "ax", %progbits
252 .balign 4096
253 .globl t3_ffc_stnp
254 .type t3_ffc_stnp, %function
255 .space 4096 - 4
256t3_ffc_stnp:
257 adrp x7, dat1
258 stnp x1,x2, [x3, #0]
259 ldr x9, [x7, :lo12:dat1]
260 ret
261
262// CHECK-PRINT: detected cortex-a53-843419 erratum sequence starting at 3BFFC in unpatched output.
263// CHECK: t3_ffc_st1singlepost:
264// CHECK-NEXT: 3bffc: 37 01 00 b0 adrp x23, #151552
265// CHECK-NEXT: 3c000: 20 70 82 4c st1 { v0.16b }, [x1], x2
266// CHECK-FIX: 3c004: 1c 50 00 14 b #82032
267// CHECK-NOFIX: 3c004: f6 06 40 f9 ldr x22, [x23, #8]
268// CHECK-NEXT: 3c008: c0 03 5f d6 ret
269 .section .text.14, "ax", %progbits
270 .balign 4096
271 .globl t3_ffc_st1singlepost
272 .type t3_ffc_st1singlepost, %function
273 .space 4096 - 4
274t3_ffc_st1singlepost:
275 adrp x23, dat2
276 st1 { v0.16b }, [x1], x2
277 ldr x22, [x23, :lo12:dat2]
278 ret
279
280// CHECK-PRINT: detected cortex-a53-843419 erratum sequence starting at 3DFF8 in unpatched output.
281// CHECK: t3_ff8_st1multiple:
282// CHECK-NEXT: 3dff8: 17 01 00 f0 adrp x23, #143360
283// CHECK-NEXT: 3dffc: 20 a0 00 4c st1 { v0.16b, v1.16b }, [x1]
284// CHECK-FIX: 3e000: 1f 48 00 14 b #73852
285// CHECK-NOFIX: 3e000: f8 0a 40 f9 ldr x24, [x23, #16]
286// CHECK-NEXT: 3e004: c0 03 5f d6 ret
287 .section .text.15, "ax", %progbits
288 .balign 4096
289 .globl t3_ff8_st1multiple
290 .type t3_ff8_st1muliple, %function
291 .space 4096 - 8
292t3_ff8_st1multiple:
293 adrp x23, dat3
294 st1 { v0.16b, v1.16b }, [x1]
295 ldr x24, [x23, :lo12:dat3]
296 ret
297
298// CHECK-PRINT: detected cortex-a53-843419 erratum sequence starting at 3FFF8 in unpatched output.
299// CHECK: t4_ff8_ldr:
300// CHECK-NEXT: 3fff8: 00 01 00 b0 adrp x0, #135168
301// CHECK-NEXT: 3fffc: 21 00 40 f9 ldr x1, [x1]
302// CHECK-NEXT: 40000: 42 00 00 8b add x2, x2, x0
303// CHECK-FIX: 40004: 20 40 00 14 b #65664
304// CHECK-NOFIX: 40004: 02 00 40 f9 ldr x2, [x0]
305// CHECK-NEXT: 40008: c0 03 5f d6 ret
306 .section .text.16, "ax", %progbits
307 .balign 4096
308 .globl t4_ff8_ldr
309 .type t4_ff8_ldr, %function
310 .space 4096 - 8
311t4_ff8_ldr:
312 adrp x0, dat1
313 ldr x1, [x1, #0]
314 add x2, x2, x0
315 ldr x2, [x0, :got_lo12:dat1]
316 ret
317
318// CHECK-PRINT: detected cortex-a53-843419 erratum sequence starting at 41FFC in unpatched output.
319// CHECK: t4_ffc_str:
320// CHECK-NEXT: 41ffc: fc 00 00 f0 adrp x28, #126976
321// CHECK-NEXT: 42000: 42 00 00 f9 str x2, [x2]
322// CHECK-NEXT: 42004: 20 00 02 cb sub x0, x1, x2
323// CHECK-FIX: 42008: 21 38 00 14 b #57476
324// CHECK-NOFIX: 42008: 9b 07 00 f9 str x27, [x28, #8]
325// CHECK-NEXT: 4200c: c0 03 5f d6 ret
326 .section .text.17, "ax", %progbits
327 .balign 4096
328 .globl t4_ffc_str
329 .type t4_ffc_str, %function
330 .space 4096 - 4
331t4_ffc_str:
332 adrp x28, dat2
333 str x2, [x2, #0]
334 sub x0, x1, x2
335 str x27, [x28, :got_lo12:dat2]
336 ret
337
338// CHECK-PRINT: detected cortex-a53-843419 erratum sequence starting at 43FF8 in unpatched output.
339// CHECK: t4_ff8_stp:
340// CHECK-NEXT: 43ff8: f0 00 00 b0 adrp x16, #118784
341// CHECK-NEXT: 43ffc: 61 08 00 a9 stp x1, x2, [x3]
342// CHECK-NEXT: 44000: 03 7e 10 9b mul x3, x16, x16
343// CHECK-FIX: 44004: 24 30 00 14 b #49296
344// CHECK-NOFIX: 44004: 0e 0a 40 f9 ldr x14, [x16, #16]
345// CHECK-NEXT: 44008: c0 03 5f d6 ret
346 .section .text.18, "ax", %progbits
347 .balign 4096
348 .globl t4_ff8_stp
349 .type t4_ff8_stp, %function
350 .space 4096 - 8
351t4_ff8_stp:
352 adrp x16, dat3
353 stp x1,x2, [x3, #0]
354 mul x3, x16, x16
355 ldr x14, [x16, :got_lo12:dat3]
356 ret
357
358// CHECK-PRINT: detected cortex-a53-843419 erratum sequence starting at 45FF8 in unpatched output.
359// CHECK: t4_ff8_stppre:
360// CHECK-NEXT: 45ff8: d0 00 00 f0 adrp x16, #110592
361// CHECK-NEXT: 45ffc: 61 08 81 a9 stp x1, x2, [x3, #16]!
362// CHECK-NEXT: 46000: 03 7e 10 9b mul x3, x16, x16
363// CHECK-FIX: 46004: 26 28 00 14 b #41112
364// CHECK-NOFIX: 46004: 0e 06 40 f9 ldr x14, [x16, #8]
365// CHECK-NEXT: 46008: c0 03 5f d6 ret
366 .section .text.19, "ax", %progbits
367 .balign 4096
368 .globl t4_ff8_stppre
369 .type t4_ff8_stppre, %function
370 .space 4096 - 8
371t4_ff8_stppre:
372 adrp x16, dat1
373 stp x1,x2, [x3, #16]!
374 mul x3, x16, x16
375 ldr x14, [x16, #8]
376 ret
377
378// CHECK-PRINT: detected cortex-a53-843419 erratum sequence starting at 47FF8 in unpatched output.
379// CHECK: t4_ff8_stppost:
380// CHECK-NEXT: 47ff8: d0 00 00 b0 adrp x16, #102400
381// CHECK-NEXT: 47ffc: 61 08 81 a8 stp x1, x2, [x3], #16
382// CHECK-NEXT: 48000: 03 7e 10 9b mul x3, x16, x16
383// CHECK-FIX: 48004: 28 20 00 14 b #32928
384// CHECK-NOFIX: 48004: 0e 06 40 f9 ldr x14, [x16, #8]
385// CHECK-NEXT: 48008: c0 03 5f d6 ret
386 .section .text.20, "ax", %progbits
387 .balign 4096
388 .globl t4_ff8_stppost
389 .type t4_ff8_stppost, %function
390 .space 4096 - 8
391t4_ff8_stppost:
392 adrp x16, dat2
393 stp x1,x2, [x3], #16
394 mul x3, x16, x16
395 ldr x14, [x16, #8]
396 ret
397
398// CHECK-PRINT: detected cortex-a53-843419 erratum sequence starting at 49FFC in unpatched output.
399// CHECK: t4_ffc_stpsimd:
400// CHECK-NEXT: 49ffc: b0 00 00 f0 adrp x16, #94208
401// CHECK-NEXT: 4a000: 61 08 00 ad stp q1, q2, [x3]
402// CHECK-NEXT: 4a004: 03 7e 10 9b mul x3, x16, x16
403// CHECK-FIX: 4a008: 29 18 00 14 b #24740
404// CHECK-NOFIX: 4a008: 0e 06 40 f9 ldr x14, [x16, #8]
405// CHECK-NEXT: 4a00c: c0 03 5f d6 ret
406 .section .text.21, "ax", %progbits
407 .balign 4096
408 .globl t4_ffc_stpsimd
409 .type t4_ffc_stpsimd, %function
410 .space 4096 - 4
411t4_ffc_stpsimd:
412 adrp x16, dat3
413 stp q1,q2, [x3, #0]
414 mul x3, x16, x16
415 ldr x14, [x16, #8]
416 ret
417
418// CHECK-PRINT: detected cortex-a53-843419 erratum sequence starting at 4BFFC in unpatched output.
419// CHECK: t4_ffc_stnp:
420// CHECK-NEXT: 4bffc: a7 00 00 b0 adrp x7, #86016
421// CHECK-NEXT: 4c000: 61 08 00 a8 stnp x1, x2, [x3]
422// CHECK-NEXT: 4c004: 1f 20 03 d5 nop
423// CHECK-FIX: 4c008: 2b 10 00 14 b #16556
424// CHECK-NOFIX: 4c008: ea 00 40 f9 ldr x10, [x7]
425// CHECK-NEXT: 4c00c: c0 03 5f d6 ret
426 .section .text.22, "ax", %progbits
427 .balign 4096
428 .globl t4_ffc_stnp
429 .type t4_ffc_stnp, %function
430 .space 4096 - 4
431t4_ffc_stnp:
432 adrp x7, dat1
433 stnp x1,x2, [x3, #0]
434 nop
435 ldr x10, [x7, :got_lo12:dat1]
436 ret
437
438// CHECK-PRINT: detected cortex-a53-843419 erratum sequence starting at 4DFFC in unpatched output.
439// CHECK: t4_ffc_st1:
440// CHECK-NEXT: 4dffc: 98 00 00 f0 adrp x24, #77824
441// CHECK-NEXT: 4e000: 20 70 00 4c st1 { v0.16b }, [x1]
442// CHECK-NEXT: 4e004: f6 06 40 f9 ldr x22, [x23, #8]
443// CHECK-FIX: 4e008: 2d 08 00 14 b #8372
444// CHECK-NOFIX: 4e008: 18 ff 3f f9 str x24, [x24, #32760]
445// CHECK-NEXT: 4e00c: c0 03 5f d6 ret
446 .section .text.23, "ax", %progbits
447 .balign 4096
448 .globl t4_ffc_st1
449 .type t4_ffc_st1, %function
450 .space 4096 - 4
451t4_ffc_st1:
452 adrp x24, dat2
453 st1 { v0.16b }, [x1]
454 ldr x22, [x23, :got_lo12:dat2]
455 str x24, [x24, #32760]
456 ret
457
458// CHECK-PRINT: detected cortex-a53-843419 erratum sequence starting at 4FFF8 in unpatched output.
459// CHECK: t3_ff8_ldr_once:
460// CHECK-NEXT: 4fff8: 80 00 00 b0 adrp x0, #69632
461// CHECK-NEXT: 4fffc: 20 70 82 4c st1 { v0.16b }, [x1], x2
462// CHECK-FIX: 50000: 31 00 00 14 b #196
463// CHECK-NOFIX: 50000: 01 08 40 f9 ldr x1, [x0, #16]
464// CHECK-NEXT: 50004: 02 08 40 f9 ldr x2, [x0, #16]
465// CHECK-NEXT: 50008: c0 03 5f d6 ret
466 .section .text.24, "ax", %progbits
467 .balign 4096
468 .globl t3_ff8_ldr_once
469 .type t3_ff8_ldr_once, %function
470 .space 4096 - 8
471t3_ff8_ldr_once:
472 adrp x0, dat3
473 st1 { v0.16b }, [x1], x2
474 ldr x1, [x0, #16]
475 ldr x2, [x0, #16]
476 ret
477
478 .text
479 .globl _start
480 .type _start, %function
481_start:
482 ret
483
484// CHECK-FIX: __CortexA53843419_22000:
485// CHECK-FIX-NEXT: 5000c: 00 00 40 f9 ldr x0, [x0]
486// CHECK-FIX-NEXT: 50010: fd 47 ff 17 b #-188428
487// CHECK-FIX: __CortexA53843419_24000:
488// CHECK-FIX-NEXT: 50014: 02 04 40 f9 ldr x2, [x0, #8]
489// CHECK-FIX-NEXT: 50018: fb 4f ff 17 b #-180244
490// CHECK-FIX: __CortexA53843419_26004:
491// CHECK-FIX-NEXT: 5001c: 03 08 40 f9 ldr x3, [x0, #16]
492// CHECK-FIX-NEXT: 50020: fa 57 ff 17 b #-172056
493// CHECK-FIX: __CortexA53843419_28000:
494// CHECK-FIX-NEXT: 50024: 02 00 40 f9 ldr x2, [x0]
495// CHECK-FIX-NEXT: 50028: f7 5f ff 17 b #-163876
496// CHECK-FIX: __CortexA53843419_2A004:
497// CHECK-FIX-NEXT: 5002c: 9c 07 00 f9 str x28, [x28, #8]
498// CHECK-FIX-NEXT: 50030: f6 67 ff 17 b #-155688
499// CHECK-FIX: __CortexA53843419_2C004:
500// CHECK-FIX-NEXT: 50034: 84 0b 00 f9 str x4, [x28, #16]
501// CHECK-FIX-NEXT: 50038: f4 6f ff 17 b #-147504
502// CHECK-FIX: __CortexA53843419_2E000:
503// CHECK-FIX-NEXT: 5003c: bd 03 40 f9 ldr x29, [x29]
504// CHECK-FIX-NEXT: 50040: f1 77 ff 17 b #-139324
505// CHECK-FIX: __CortexA53843419_30004:
506// CHECK-FIX-NEXT: 50044: bd 07 40 f9 ldr x29, [x29, #8]
507// CHECK-FIX-NEXT: 50048: f0 7f ff 17 b #-131136
508// CHECK-FIX: __CortexA53843419_32004:
509// CHECK-FIX-NEXT: 5004c: 41 0a 40 f9 ldr x1, [x18, #16]
510// CHECK-FIX-NEXT: 50050: ee 87 ff 17 b #-122952
511// CHECK-FIX: __CortexA53843419_34000:
512// CHECK-FIX-NEXT: 50054: 52 02 40 f9 ldr x18, [x18]
513// CHECK-FIX-NEXT: 50058: eb 8f ff 17 b #-114772
514// CHECK-FIX: __CortexA53843419_36004:
515// CHECK-FIX-NEXT: 5005c: ea 05 40 f9 ldr x10, [x15, #8]
516// CHECK-FIX-NEXT: 50060: ea 97 ff 17 b #-106584
517// CHECK-FIX: __CortexA53843419_38000:
518// CHECK-FIX-NEXT: 50064: 0d 0a 40 f9 ldr x13, [x16, #16]
519// CHECK-FIX-NEXT: 50068: e7 9f ff 17 b #-98404
520// CHECK-FIX: __CortexA53843419_3A004:
521// CHECK-FIX-NEXT: 5006c: e9 00 40 f9 ldr x9, [x7]
522// CHECK-FIX-NEXT: 50070: e6 a7 ff 17 b #-90216
523// CHECK-FIX: __CortexA53843419_3C004:
524// CHECK-FIX-NEXT: 50074: f6 06 40 f9 ldr x22, [x23, #8]
525// CHECK-FIX-NEXT: 50078: e4 af ff 17 b #-82032
526// CHECK-FIX: __CortexA53843419_3E000:
527// CHECK-FIX-NEXT: 5007c: f8 0a 40 f9 ldr x24, [x23, #16]
528// CHECK-FIX-NEXT: 50080: e1 b7 ff 17 b #-73852
529// CHECK-FIX: __CortexA53843419_40004:
530// CHECK-FIX-NEXT: 50084: 02 00 40 f9 ldr x2, [x0]
531// CHECK-FIX-NEXT: 50088: e0 bf ff 17 b #-65664
532// CHECK-FIX: __CortexA53843419_42008:
533// CHECK-FIX-NEXT: 5008c: 9b 07 00 f9 str x27, [x28, #8]
534// CHECK-FIX-NEXT: 50090: df c7 ff 17 b #-57476
535// CHECK-FIX: __CortexA53843419_44004:
536// CHECK-FIX-NEXT: 50094: 0e 0a 40 f9 ldr x14, [x16, #16]
537// CHECK-FIX-NEXT: 50098: dc cf ff 17 b #-49296
538// CHECK-FIX: __CortexA53843419_46004:
539// CHECK-FIX-NEXT: 5009c: 0e 06 40 f9 ldr x14, [x16, #8]
540// CHECK-FIX-NEXT: 500a0: da d7 ff 17 b #-41112
541// CHECK-FIX: __CortexA53843419_48004:
542// CHECK-FIX-NEXT: 500a4: 0e 06 40 f9 ldr x14, [x16, #8]
543// CHECK-FIX-NEXT: 500a8: d8 df ff 17 b #-32928
544// CHECK-FIX: __CortexA53843419_4A008:
545// CHECK-FIX-NEXT: 500ac: 0e 06 40 f9 ldr x14, [x16, #8]
546// CHECK-FIX-NEXT: 500b0: d7 e7 ff 17 b #-24740
547// CHECK-FIX: __CortexA53843419_4C008:
548// CHECK-FIX-NEXT: 500b4: ea 00 40 f9 ldr x10, [x7]
549// CHECK-FIX-NEXT: 500b8: d5 ef ff 17 b #-16556
550// CHECK-FIX: __CortexA53843419_4E008:
551// CHECK-FIX-NEXT: 500bc: 18 ff 3f f9 str x24, [x24, #32760]
552// CHECK-FIX-NEXT: 500c0: d3 f7 ff 17 b #-8372
553// CHECK-FIX: __CortexA53843419_50000:
554// CHECK-FIX-NEXT: 500c4: 01 08 40 f9 ldr x1, [x0, #16]
555// CHECK-FIX-NEXT: 500c8: cf ff ff 17 b #-196
556
557 .data
558 .globl dat
559 .globl dat2
560 .globl dat3
561dat1: .quad 1
562dat2: .quad 2
563dat3: .quad 3
deps/lld/test/ELF/aarch64-cortex-a53-843419-thunk.s created+57
...@@ -0,0 +1,57 @@
1// REQUIRES: aarch64
2// RUN: llvm-mc -filetype=obj -triple=aarch64-none-linux %s -o %t.o
3// RUN: echo "SECTIONS { \
4// RUN: .text1 0x10000 : { *(.text.01) *(.text.02) *(.text.03) } \
5// RUN: .text2 0x8010000 : { *(.text.04) } } " > %t.script
6// RUN: ld.lld --script %t.script -fix-cortex-a53-843419 -verbose %t.o -o %t2 | FileCheck -check-prefix=CHECK-PRINT %s
7// RUN: llvm-objdump -triple=aarch64-linux-gnu -d %t2 | FileCheck %s
8
9// %t2 is 128 Megabytes, so delete it early.
10// RUN: rm %t2
11
12// Test cases for Cortex-A53 Erratum 843419 that involve interactions with
13// range extension thunks. Both erratum fixes and range extension thunks need
14// precise address information and after creation alter address information.
15
16
17 .section .text.01, "ax", %progbits
18 .balign 4096
19 .globl _start
20 .type _start, %function
21_start:
22 bl far_away
23 // Thunk to far_away, size 16-bytes goes here.
24
25 .section .text.02, "ax", %progbits
26 .space 4096 - 28
27
28 // Erratum sequence will only line up at address 0 modulo 0xffc when
29 // Thunk is inserted.
30 .section .text.03, "ax", %progbits
31 .globl t3_ff8_ldr
32 .type t3_ff8_ldr, %function
33t3_ff8_ldr:
34 adrp x0, dat
35 ldr x1, [x1, #0]
36 ldr x0, [x0, :got_lo12:dat]
37 ret
38
39// CHECK-PRINT: detected cortex-a53-843419 erratum sequence starting at 10FFC in unpatched output.
40// CHECK: t3_ff8_ldr:
41// CHECK-NEXT: 10ffc: 00 00 04 90 adrp x0, #134217728
42// CHECK-NEXT: 11000: 21 00 40 f9 ldr x1, [x1]
43// CHECK-NEXT: 11004: 02 00 00 14 b #8
44// CHECK-NEXT: 11008: c0 03 5f d6 ret
45// CHECK: __CortexA53843419_11004:
46// CHECK-NEXT: 1100c: 00 08 40 f9 ldr x0, [x0, #16]
47// CHECK-NEXT: 11010: fe ff ff 17 b #-8
48
49 .section .text.04, "ax", %progbits
50 .globl far_away
51 .type far_away, function
52far_away:
53 ret
54
55 .section .data
56 .globl dat
57dat: .quad 0
deps/lld/test/ELF/aarch64-gnu-ifunc-plt.s+1-1
...@@ -1,7 +1,7 @@...@@ -1,7 +1,7 @@
1// RUN: llvm-mc -filetype=obj -triple=aarch64-none-linux-gnu %S/Inputs/shared2.s -o %t1.o1// RUN: llvm-mc -filetype=obj -triple=aarch64-none-linux-gnu %S/Inputs/shared2.s -o %t1.o
2// RUN: ld.lld %t1.o --shared -o %t.so2// RUN: ld.lld %t1.o --shared -o %t.so
3// RUN: llvm-mc -filetype=obj -triple=aarch64-none-linux-gnu %s -o %t.o3// RUN: llvm-mc -filetype=obj -triple=aarch64-none-linux-gnu %s -o %t.o
4// RUN: ld.lld %t.so %t.o -o %tout4// RUN: ld.lld --hash-style=sysv %t.so %t.o -o %tout
5// RUN: llvm-objdump -d %tout | FileCheck %s --check-prefix=DISASM5// RUN: llvm-objdump -d %tout | FileCheck %s --check-prefix=DISASM
6// RUN: llvm-objdump -s %tout | FileCheck %s --check-prefix=GOTPLT6// RUN: llvm-objdump -s %tout | FileCheck %s --check-prefix=GOTPLT
7// RUN: llvm-readobj -r -dynamic-table %tout | FileCheck %s7// RUN: llvm-readobj -r -dynamic-table %tout | FileCheck %s
deps/lld/test/ELF/aarch64-gnu-ifunc.s+1-1
...@@ -15,7 +15,7 @@...@@ -15,7 +15,7 @@
15// CHECK-NEXT: Address: [[RELA:.*]]15// CHECK-NEXT: Address: [[RELA:.*]]
16// CHECK-NEXT: Offset: 0x15816// CHECK-NEXT: Offset: 0x158
17// CHECK-NEXT: Size: 4817// CHECK-NEXT: Size: 48
18// CHECK-NEXT: Link: 618// CHECK-NEXT: Link: 0
19// CHECK-NEXT: Info: 019// CHECK-NEXT: Info: 0
20// CHECK-NEXT: AddressAlignment: 820// CHECK-NEXT: AddressAlignment: 8
21// CHECK-NEXT: EntrySize: 2421// CHECK-NEXT: EntrySize: 24
deps/lld/test/ELF/aarch64-got-reloc.s+2-2
...@@ -9,8 +9,8 @@...@@ -9,8 +9,8 @@
9// CHECK-NEXT: SHF_ALLOC9// CHECK-NEXT: SHF_ALLOC
10// CHECK-NEXT: SHF_WRITE10// CHECK-NEXT: SHF_WRITE
11// CHECK-NEXT: ]11// CHECK-NEXT: ]
12// CHECK-NEXT: Address: 0x3000012// CHECK-NEXT: Address:
13// CHECK-NEXT: Offset: 0x2000013// CHECK-NEXT: Offset:
14// CHECK-NEXT: Size: 814// CHECK-NEXT: Size: 8
15// CHECK-NEXT: Link: 015// CHECK-NEXT: Link: 0
16// CHECK-NEXT: Info: 016// CHECK-NEXT: Info: 0
deps/lld/test/ELF/aarch64-got-relocations.s+1-1
...@@ -1,6 +1,6 @@...@@ -1,6 +1,6 @@
1# REQUIRES: aarch641# REQUIRES: aarch64
2# RUN: llvm-mc -filetype=obj -triple=aarch64-unknown-cloudabi %s -o %t.o2# RUN: llvm-mc -filetype=obj -triple=aarch64-unknown-cloudabi %s -o %t.o
3# RUN: ld.lld -pie %t.o -o %t3# RUN: ld.lld --hash-style=sysv -pie %t.o -o %t
4# RUN: llvm-readobj -r %t | FileCheck %s4# RUN: llvm-readobj -r %t | FileCheck %s
55
6# If we're addressing a global relatively through the GOT, we still need to6# If we're addressing a global relatively through the GOT, we still need to
deps/lld/test/ELF/aarch64-jump26-error.s deleted-11
...@@ -1,11 +0,0 @@
1// RUN: llvm-mc -filetype=obj -triple=aarch64-pc-freebsd %S/Inputs/abs.s -o %tabs
2// RUN: llvm-mc -filetype=obj -triple=aarch64-pc-freebsd %s -o %t
3// RUN: not ld.lld %t %tabs -o %t2 2>&1 | FileCheck %s
4// REQUIRES: aarch64
5
6.text
7.globl _start
8_start:
9 b big
10
11// CHECK: R_AARCH64_JUMP26 out of range
deps/lld/test/ELF/aarch64-jump26-thunk.s created+20
...@@ -0,0 +1,20 @@
1// RUN: llvm-mc -filetype=obj -triple=aarch64-pc-freebsd %S/Inputs/abs.s -o %tabs
2// RUN: llvm-mc -filetype=obj -triple=aarch64-pc-freebsd %s -o %t
3// RUN: ld.lld %t %tabs -o %t2 2>&1
4// RUN: llvm-objdump -d -triple=aarch64-pc-freebsd %t2 | FileCheck %s
5// REQUIRES: aarch64
6
7.text
8.globl _start
9_start:
10 b big
11
12// CHECK: Disassembly of section .text:
13// CHECK-NEXT: _start:
14// CHECK-NEXT: 20000: 02 00 00 14 b #8
15// CHECK: __AArch64AbsLongThunk_big:
16// CHECK-NEXT: 20008: 50 00 00 58 ldr x16, #8
17// CHECK-NEXT: 2000c: 00 02 1f d6 br x16
18// CHECK: $d:
19// CHECK-NEXT: 20010: 00 00 00 00 .word 0x00000000
20// CHECK-NEXT: 20014: 10 00 00 00 .word 0x00000010
deps/lld/test/ELF/aarch64-ldprel-lo19-invalid.s created+11
...@@ -0,0 +1,11 @@
1# REQUIRES: aarch64
2
3# RUN: llvm-mc -filetype=obj -triple=aarch64-linux-none %s -o %t.o
4# RUN: not ld.lld -shared %t.o -o %t 2>&1 | FileCheck %s
5
6# CHECK: relocation R_AARCH64_LD_PREL_LO19 out of range: 2065536 is not in [-1048576, 1048575]
7
8 ldr x8, patatino
9 .data
10 .zero 2000000
11patatino:
deps/lld/test/ELF/aarch64-lo12-alignment.s created+45
...@@ -0,0 +1,45 @@
1// REQUIRES: aarch64
2// RUN: llvm-mc -filetype=obj -triple=aarch64-none-linux %s -o %t
3// RUN: not ld.lld %t -o %t2 2>&1 | FileCheck %s
4
5// Test derived from a typical ODR violation where a global is declared
6// extern int but defined as a half or byte sized type.
7 .section .text
8 .globl _start
9 .type _start, %function
10// Access foo2 as if it were an aligned 32-bit int, expect an error as
11// foo is not aligned
12
13_start:
14 ldrb w2, [x0, #:lo12:foo1] // Ok as no shift involved
15 ldrh w2, [x0, #:lo12:foo1] // Error foo1 is not 2-byte aligned
16 ldrh w2, [x0, #:lo12:foo2] // Ok as foo2 is 2-byte aligned
17 ldr w2, [x0, #:lo12:foo2] // Error foo2 is not 4-byte aligned
18 ldr w2, [x0, #:lo12:foo4] // Ok as foo4 is 4-byte aligned
19 ldr x3, [x0, #:lo12:foo4] // Error foo4 is not 8-byte aligned
20 ldr x3, [x0, #:lo12:foo8] // Ok as foo8 is 8-byte aligned
21 ldr q0, [x0, #:lo12:foo8] // Error foo8 is not 16-byte aligned
22 ldr q0, [x0, #:lo12:foo16] // Ok as foo16 is 16-byte aligned
23
24 .section .data.bool, "a", @nobits
25 .balign 16
26 .globl foo16
27 .globl foo1
28 .globl foo2
29 .globl foo4
30 .globl foo8
31foo16:
32 .space 1
33foo1:
34 .space 1
35foo2:
36 .space 2
37foo4:
38 .space 4
39foo8:
40 .space 8
41
42// CHECK: improper alignment for relocation R_AARCH64_LDST16_ABS_LO12_NC: 0x30001 is not aligned to 2 bytes
43// CHECK-NEXT: improper alignment for relocation R_AARCH64_LDST32_ABS_LO12_NC: 0x30002 is not aligned to 4 bytes
44// CHECK-NEXT: improper alignment for relocation R_AARCH64_LDST64_ABS_LO12_NC: 0x30004 is not aligned to 8 bytes
45// CHECK-NEXT: improper alignment for relocation R_AARCH64_LDST128_ABS_LO12_NC: 0x30008 is not aligned to 16 bytes
deps/lld/test/ELF/aarch64-load-alignment.s created+11
...@@ -0,0 +1,11 @@
1# REQUIRES: aarch64
2
3# RUN: llvm-mc -filetype=obj -triple=aarch64-linux-none %s -o %t.o
4# RUN: not ld.lld -shared %t.o -o %t 2>&1 | FileCheck %s
5
6# CHECK: improper alignment for relocation R_AARCH64_LD_PREL_LO19: 0x10005 is not aligned to 4 bytes
7
8 ldr x8, patatino
9 .data
10 .zero 5
11patatino:
deps/lld/test/ELF/aarch64-prel16.s+1-1
...@@ -28,4 +28,4 @@ _start:...@@ -28,4 +28,4 @@ _start:
28// | FileCheck %s --check-prefix=OVERFLOW28// | FileCheck %s --check-prefix=OVERFLOW
29// RUN: not ld.lld %t.o %t257.o -o %t229// RUN: not ld.lld %t.o %t257.o -o %t2
30// | FileCheck %s --check-prefix=OVERFLOW30// | FileCheck %s --check-prefix=OVERFLOW
31// OVERFLOW: Relocation R_AARCH64_PREL16 out of range31// OVERFLOW: Relocation R_AARCH64_PREL16 out of range: -94209 is not in [-32768, 65535]
deps/lld/test/ELF/aarch64-prel32.s+1-1
...@@ -28,4 +28,4 @@ _start:...@@ -28,4 +28,4 @@ _start:
28// | FileCheck %s --check-prefix=OVERFLOW28// | FileCheck %s --check-prefix=OVERFLOW
29// RUN: not ld.lld %t.o %t257.o -o %t229// RUN: not ld.lld %t.o %t257.o -o %t2
30// | FileCheck %s --check-prefix=OVERFLOW30// | FileCheck %s --check-prefix=OVERFLOW
31// OVERFLOW: Relocation R_AARCH64_PREL32 out of range31// OVERFLOW: Relocation R_AARCH64_PREL32 out of range: 18446744071562006527 is not in [-2147483648, 4294967295]
deps/lld/test/ELF/aarch64-thunk-pi.s created+91
...@@ -0,0 +1,91 @@
1// RUN: llvm-mc -filetype=obj -triple=aarch64-linux-gnu %s -o %t
2// RUN: echo "SECTIONS { \
3// RUN: .text_low : { *(.text_low) } \
4// RUN: .text_high 0x10000000 : { *(.text_high) } \
5// RUN: } " > %t.script
6// RUN: ld.lld --script %t.script --shared %t -o %t2 2>&1
7// RUN: llvm-objdump -d -triple=aarch64-linux-gnu %t2 | FileCheck %s
8// REQUIRES: aarch64
9
10// Check that Position Independent thunks are generated for shared libraries.
11 .section .text_low, "ax", %progbits
12 .globl low_target
13 .type low_target, %function
14low_target:
15 // Need thunk to high_target@plt
16 bl high_target
17 ret
18// CHECK: low_target:
19// CHECK-NEXT: 0: 04 00 00 94 bl #16
20// CHECK-NEXT: 4: c0 03 5f d6 ret
21
22 .hidden low_target2
23 .globl low_target2
24 .type low_target2, %function
25low_target2:
26 // Need thunk to high_target
27 bl high_target2
28 ret
29// CHECK: low_target2:
30// CHECK-NEXT: 8: 05 00 00 94 bl #20
31// CHECK-NEXT: c: c0 03 5f d6 ret
32
33// Expect range extension thunks for .text_low
34// adrp calculation is (PC + signed immediate) & (!0xfff)
35// CHECK: __AArch64ADRPThunk_high_target:
36// CHECK-NEXT: 10: 10 00 08 90 adrp x16, #268435456
37// CHECK-NEXT: 14: 10 82 04 91 add x16, x16, #288
38// CHECK-NEXT: 18: 00 02 1f d6 br x16
39// CHECK: __AArch64ADRPThunk_high_target2:
40// CHECK-NEXT: 1c: 10 00 08 90 adrp x16, #268435456
41// CHECK-NEXT: 20: 10 22 00 91 add x16, x16, #8
42// CHECK-NEXT: 24: 00 02 1f d6 br x16
43
44
45 .section .text_high, "ax", %progbits
46 .globl high_target
47 .type high_target, %function
48high_target:
49 // No thunk needed as we can reach low_target@plt
50 bl low_target
51 ret
52// CHECK: high_target:
53// CHECK-NEXT: 10000000: 4c 00 00 94 bl #304
54// CHECK-NEXT: 10000004: c0 03 5f d6 ret
55
56 .hidden high_target2
57 .globl high_target2
58 .type high_target2, %function
59high_target2:
60 // Need thunk to low_target
61 bl low_target2
62 ret
63// CHECK: high_target2:
64// CHECK-NEXT: 10000008: 02 00 00 94 bl #8
65// CHECK-NEXT: 1000000c: c0 03 5f d6 ret
66
67// Expect Thunk for .text.high
68
69// CHECK: __AArch64ADRPThunk_low_target2:
70// CHECK-NEXT: 10000010: 10 00 f8 90 adrp x16, #-268435456
71// CHECK-NEXT: 10000014: 10 22 00 91 add x16, x16, #8
72// CHECK-NEXT: 10000018: 00 02 1f d6 br x16
73
74// CHECK: Disassembly of section .plt:
75// CHECK-NEXT: .plt:
76// CHECK-NEXT: 10000100: f0 7b bf a9 stp x16, x30, [sp, #-16]!
77// CHECK-NEXT: 10000104: 10 00 00 90 adrp x16, #0
78// CHECK-NEXT: 10000108: 11 aa 40 f9 ldr x17, [x16, #336]
79// CHECK-NEXT: 1000010c: 10 42 05 91 add x16, x16, #336
80// CHECK-NEXT: 10000110: 20 02 1f d6 br x17
81// CHECK-NEXT: 10000114: 1f 20 03 d5 nop
82// CHECK-NEXT: 10000118: 1f 20 03 d5 nop
83// CHECK-NEXT: 1000011c: 1f 20 03 d5 nop
84// CHECK-NEXT: 10000120: 10 00 00 90 adrp x16, #0
85// CHECK-NEXT: 10000124: 11 ae 40 f9 ldr x17, [x16, #344]
86// CHECK-NEXT: 10000128: 10 62 05 91 add x16, x16, #344
87// CHECK-NEXT: 1000012c: 20 02 1f d6 br x17
88// CHECK-NEXT: 10000130: 10 00 00 90 adrp x16, #0
89// CHECK-NEXT: 10000134: 11 b2 40 f9 ldr x17, [x16, #352]
90// CHECK-NEXT: 10000138: 10 82 05 91 add x16, x16, #352
91// CHECK-NEXT: 1000013c: 20 02 1f d6 br x17
deps/lld/test/ELF/aarch64-thunk-script.s created+41
...@@ -0,0 +1,41 @@
1// RUN: llvm-mc -filetype=obj -triple=aarch64-linux-gnu %s -o %t
2// RUN: echo "SECTIONS { \
3// RUN: .text_low 0x2000: { *(.text_low) } \
4// RUN: .text_high 0x8002000 : { *(.text_high) } \
5// RUN: } " > %t.script
6// RUN: ld.lld --script %t.script %t -o %t2 2>&1
7// RUN: llvm-objdump -d -triple=aarch64-linux-gnu %t2 | FileCheck %s
8// REQUIRES: aarch64
9
10// Check that we have the out of branch range calculation right. The immediate
11// field is signed so we have a slightly higher negative displacement.
12 .section .text_low, "ax", %progbits
13 .globl _start
14 .type _start, %function
15_start:
16 // Need thunk to high_target@plt
17 bl high_target
18 ret
19
20 .section .text_high, "ax", %progbits
21 .globl high_target
22 .type high_target, %function
23high_target:
24 // No Thunk needed as we are within signed immediate range
25 bl _start
26 ret
27
28// CHECK: Disassembly of section .text_low:
29// CHECK-NEXT: _start:
30// CHECK-NEXT: 2000: 02 00 00 94 bl #8
31// CHECK-NEXT: 2004: c0 03 5f d6 ret
32// CHECK: __AArch64AbsLongThunk_high_target:
33// CHECK-NEXT: 2008: 50 00 00 58 ldr x16, #8
34// CHECK-NEXT: 200c: 00 02 1f d6 br x16
35// CHECK: $d:
36// CHECK-NEXT: 2010: 00 20 00 08 .word 0x08002000
37// CHECK-NEXT: 2014: 00 00 00 00 .word 0x00000000
38// CHECK: Disassembly of section .text_high:
39// CHECK-NEXT: high_target:
40// CHECK-NEXT: 8002000: 00 00 00 96 bl #-134217728
41// CHECK-NEXT: 8002004: c0 03 5f d6 ret
deps/lld/test/ELF/aarch64-thunk-section-location.s created+41
...@@ -0,0 +1,41 @@
1// RUN: llvm-mc -filetype=obj -triple=aarch64-linux-gnu %s -o %t
2// RUN: ld.lld %t -o %t2 2>&1
3// RUN: llvm-objdump -d -start-address=134086664 -stop-address=134086676 -triple=aarch64-linux-gnu %t2 | FileCheck %s
4// REQUIRES: aarch64
5// Check that the range extension thunks are dumped close to the aarch64 branch
6// range of 128 MiB
7 .section .text.1, "ax", %progbits
8 .balign 0x1000
9 .globl _start
10_start:
11 bl high_target
12 ret
13
14 .section .text.2, "ax", %progbits
15 .space 0x2000000
16
17 .section .text.2, "ax", %progbits
18 .space 0x2000000
19
20 .section .text.3, "ax", %progbits
21 .space 0x2000000
22
23 .section .text.4, "ax", %progbits
24 .space 0x2000000 - 0x40000
25
26 .section .text.5, "ax", %progbits
27 .space 0x40000
28
29 .section .text.6, "ax", %progbits
30 .balign 0x1000
31
32 .globl high_target
33 .type high_target, %function
34high_target:
35 ret
36
37// CHECK: __AArch64AbsLongThunk_high_target:
38// CHECK-NEXT: 7fe0008: 50 00 00 58 ldr x16, #8
39// CHECK-NEXT: 7fe000c: 00 02 1f d6 br x16
40// CHECK: $d:
41// CHECK-NEXT: 7fe0010: 00 10 02 08 .word 0x08021000
deps/lld/test/ELF/aarch64-tls-gdie.s+1-1
...@@ -2,7 +2,7 @@...@@ -2,7 +2,7 @@
2// RUN: llvm-mc %s -o %t.o -filetype=obj -triple=aarch64-pc-linux2// RUN: llvm-mc %s -o %t.o -filetype=obj -triple=aarch64-pc-linux
3// RUN: llvm-mc %p/Inputs/aarch64-tls-gdie.s -o %t2.o -filetype=obj -triple=aarch64-pc-linux3// RUN: llvm-mc %p/Inputs/aarch64-tls-gdie.s -o %t2.o -filetype=obj -triple=aarch64-pc-linux
4// RUN: ld.lld %t2.o -o %t2.so -shared4// RUN: ld.lld %t2.o -o %t2.so -shared
5// RUN: ld.lld %t.o %t2.so -o %t5// RUN: ld.lld --hash-style=sysv %t.o %t2.so -o %t
6// RUN: llvm-readobj -s %t | FileCheck --check-prefix=SEC %s6// RUN: llvm-readobj -s %t | FileCheck --check-prefix=SEC %s
7// RUN: llvm-objdump -d %t | FileCheck %s7// RUN: llvm-objdump -d %t | FileCheck %s
88
deps/lld/test/ELF/aarch64-tls-ie.s+1-1
...@@ -2,7 +2,7 @@...@@ -2,7 +2,7 @@
2# RUN: llvm-mc -filetype=obj -triple=aarch64-unknown-freebsd %p/Inputs/aarch64-tls-ie.s -o %tdso.o2# RUN: llvm-mc -filetype=obj -triple=aarch64-unknown-freebsd %p/Inputs/aarch64-tls-ie.s -o %tdso.o
3# RUN: llvm-mc -filetype=obj -triple=aarch64-unknown-freebsd %s -o %tmain.o3# RUN: llvm-mc -filetype=obj -triple=aarch64-unknown-freebsd %s -o %tmain.o
4# RUN: ld.lld -shared %tdso.o -o %tdso.so4# RUN: ld.lld -shared %tdso.o -o %tdso.so
5# RUN: ld.lld %tmain.o %tdso.so -o %tout5# RUN: ld.lld --hash-style=sysv %tmain.o %tdso.so -o %tout
6# RUN: llvm-objdump -d %tout | FileCheck %s6# RUN: llvm-objdump -d %tout | FileCheck %s
7# RUN: llvm-readobj -s -r %tout | FileCheck -check-prefix=RELOC %s7# RUN: llvm-readobj -s -r %tout | FileCheck -check-prefix=RELOC %s
8# REQUIRES: aarch648# REQUIRES: aarch64
deps/lld/test/ELF/aarch64-tls-static.s+1-1
...@@ -1,6 +1,6 @@...@@ -1,6 +1,6 @@
1// REQUIRES: aarch641// REQUIRES: aarch64
2// RUN: llvm-mc %s -o %t.o -triple aarch64-pc-linux -filetype=obj2// RUN: llvm-mc %s -o %t.o -triple aarch64-pc-linux -filetype=obj
3// RUN: ld.lld %t.o -o %t.so -shared3// RUN: ld.lld --hash-style=sysv %t.o -o %t.so -shared
4// RUN: llvm-readobj -s %t.so | FileCheck --check-prefix=SEC %s4// RUN: llvm-readobj -s %t.so | FileCheck --check-prefix=SEC %s
5// RUN: llvm-objdump -d %t.so | FileCheck %s5// RUN: llvm-objdump -d %t.so | FileCheck %s
66
deps/lld/test/ELF/aarch64-tlsdesc.s+1-1
...@@ -1,6 +1,6 @@...@@ -1,6 +1,6 @@
1// REQUIRES: aarch641// REQUIRES: aarch64
2// RUN: llvm-mc -filetype=obj -triple=aarch64-pc-linux %s -o %t.o2// RUN: llvm-mc -filetype=obj -triple=aarch64-pc-linux %s -o %t.o
3// RUN: ld.lld -shared %t.o -o %t.so3// RUN: ld.lld --hash-style=sysv -shared %t.o -o %t.so
4// RUN: llvm-objdump -d %t.so | FileCheck %s4// RUN: llvm-objdump -d %t.so | FileCheck %s
5// RUN: llvm-readobj -r %t.so | FileCheck --check-prefix=REL %s5// RUN: llvm-readobj -r %t.so | FileCheck --check-prefix=REL %s
66
deps/lld/test/ELF/aarch64-undefined-weak.s+5-1
...@@ -30,9 +30,11 @@ _start:...@@ -30,9 +30,11 @@ _start:
30 .xword target - .30 .xword target - .
31// R_AARCH64_PREL1631// R_AARCH64_PREL16
32 .hword target - .32 .hword target - .
33// R_AARCH64_LD_PREL_LO19
34 ldr x8, target
3335
34// CHECK: Disassembly of section .text:36// CHECK: Disassembly of section .text:
35// 131076 = 0x2000437// 131072 = 0x20000
36// CHECK: 20000: {{.*}} b #438// CHECK: 20000: {{.*}} b #4
37// CHECK-NEXT: 20004: {{.*}} bl #439// CHECK-NEXT: 20004: {{.*}} bl #4
38// CHECK-NEXT: 20008: {{.*}} b.eq #440// CHECK-NEXT: 20008: {{.*}} b.eq #4
...@@ -43,3 +45,5 @@ _start:...@@ -43,3 +45,5 @@ _start:
43// CHECK-NEXT: 2001c: {{.*}} .word 0x0000000045// CHECK-NEXT: 2001c: {{.*}} .word 0x00000000
44// CHECK-NEXT: 20020: {{.*}} .word 0x0000000046// CHECK-NEXT: 20020: {{.*}} .word 0x00000000
45// CHECK-NEXT: 20024: {{.*}} .short 0x000047// CHECK-NEXT: 20024: {{.*}} .short 0x0000
48// CHECK: $x.2:
49// CHECK-NEXT: 20026: {{.*}} ldr x8, #0
deps/lld/test/ELF/abs-hidden.s+1-1
...@@ -1,7 +1,7 @@...@@ -1,7 +1,7 @@
1// REQUIRES: x861// REQUIRES: x86
2// RUN: llvm-mc -filetype=obj -triple=x86_64-pc-linux %s -o %t.o2// RUN: llvm-mc -filetype=obj -triple=x86_64-pc-linux %s -o %t.o
3// RUN: llvm-mc -filetype=obj -triple=x86_64-pc-linux %p/Inputs/abs-hidden.s -o %t2.o3// RUN: llvm-mc -filetype=obj -triple=x86_64-pc-linux %p/Inputs/abs-hidden.s -o %t2.o
4// RUN: ld.lld %t.o %t2.o -o %t.so -shared4// RUN: ld.lld --hash-style=sysv %t.o %t2.o -o %t.so -shared
5// RUN: llvm-readobj -r -s -section-data %t.so | FileCheck %s5// RUN: llvm-readobj -r -s -section-data %t.so | FileCheck %s
66
7 .quad foo7 .quad foo
deps/lld/test/ELF/allow-multiple-definition.s+5
...@@ -8,6 +8,11 @@...@@ -8,6 +8,11 @@
8# RUN: llvm-objdump -d %t3 | FileCheck %s8# RUN: llvm-objdump -d %t3 | FileCheck %s
9# RUN: llvm-objdump -d %t4 | FileCheck -check-prefix=REVERT %s9# RUN: llvm-objdump -d %t4 | FileCheck -check-prefix=REVERT %s
1010
11# RUN: ld.lld -z muldefs %t1 %t2 -o %t3
12# RUN: ld.lld -z muldefs %t2 %t1 -o %t4
13# RUN: llvm-objdump -d %t3 | FileCheck %s
14# RUN: llvm-objdump -d %t4 | FileCheck -check-prefix=REVERT %s
15
11# inputs contain different constants for instuction movl.16# inputs contain different constants for instuction movl.
12# Tests below checks that order of files in command line17# Tests below checks that order of files in command line
13# affects on what symbol will be used.18# affects on what symbol will be used.
deps/lld/test/ELF/amdgpu-elf-flags-err.s created+7
...@@ -0,0 +1,7 @@
1# RUN: llvm-mc -triple amdgcn-amd-amdhsa -mcpu=gfx803 -filetype=obj %S/Inputs/amdgpu-kernel-0.s -o %t-0.o
2# RUN: llvm-mc -triple amdgcn-amd-amdhsa -mcpu=gfx803 -filetype=obj %S/Inputs/amdgpu-kernel-1.s -o %t-1.o
3# RUN: not ld.lld -shared %t-0.o %t-1.o %S/Inputs/amdgpu-kernel-2.o -o %t.so 2>&1 | FileCheck %s
4
5# REQUIRES: amdgpu
6
7# CHECK: error: incompatible e_flags: {{.*}}amdgpu-kernel-2.o
deps/lld/test/ELF/amdgpu-elf-flags.s created+10
...@@ -0,0 +1,10 @@
1# RUN: llvm-mc -triple amdgcn-amd-amdhsa -mcpu=gfx803 -filetype=obj %S/Inputs/amdgpu-kernel-0.s -o %t-0.o
2# RUN: llvm-mc -triple amdgcn-amd-amdhsa -mcpu=gfx803 -filetype=obj %S/Inputs/amdgpu-kernel-1.s -o %t-1.o
3# RUN: ld.lld -shared %t-0.o %t-1.o -o %t.so
4# RUN: llvm-readobj -file-headers %t.so | FileCheck %s
5
6# REQUIRES: amdgpu
7
8# CHECK: Flags [ (0x2)
9# CHECK: EF_AMDGPU_ARCH_GCN (0x2)
10# CHECK: ]
deps/lld/test/ELF/amdgpu-relocs.s+14-1
...@@ -1,5 +1,5 @@...@@ -1,5 +1,5 @@
1# RUN: llvm-mc -filetype=obj -triple=amdgcn--amdhsa -mcpu=fiji %s -o %t.o1# RUN: llvm-mc -filetype=obj -triple=amdgcn--amdhsa -mcpu=fiji %s -o %t.o
2# RUN: ld.lld -shared %t.o -o %t.so2# RUN: ld.lld --hash-style=sysv -shared %t.o -o %t.so
3# RUN: llvm-readobj -r %t.so | FileCheck %s3# RUN: llvm-readobj -r %t.so | FileCheck %s
4# RUN: llvm-objdump -s %t.so | FileCheck %s --check-prefix=OBJDUMP4# RUN: llvm-objdump -s %t.so | FileCheck %s --check-prefix=OBJDUMP
55
...@@ -65,10 +65,23 @@ ptr:...@@ -65,10 +65,23 @@ ptr:
65 .quad temp65 .quad temp
66 .size ptr, 866 .size ptr, 8
6767
68# R_AMDGPU_RELATIVE64:
69 .type temp2, @object
70 .local temp2
71 .size temp2, 4
72
73 .type ptr2, @object
74 .globl ptr2
75 .size ptr2, 8
76 .p2align 3
77ptr2:
78 .quad temp2
79
68# The relocation for local_var{0, 1, 2} and var should be resolved by the80# The relocation for local_var{0, 1, 2} and var should be resolved by the
69# linker.81# linker.
70# CHECK: Relocations [82# CHECK: Relocations [
71# CHECK: .rela.dyn {83# CHECK: .rela.dyn {
84# CHECK-NEXT: R_AMDGPU_RELATIVE64 - 0x0
72# CHECK-NEXT: R_AMDGPU_ABS64 common_var0 0x085# CHECK-NEXT: R_AMDGPU_ABS64 common_var0 0x0
73# CHECK-NEXT: R_AMDGPU_ABS64 common_var1 0x086# CHECK-NEXT: R_AMDGPU_ABS64 common_var1 0x0
74# CHECK-NEXT: R_AMDGPU_ABS64 common_var2 0x087# CHECK-NEXT: R_AMDGPU_ABS64 common_var2 0x0
deps/lld/test/ELF/arm-bl-v6.s created+51
...@@ -0,0 +1,51 @@
1// RUN: llvm-mc -filetype=obj -triple=arm-none-linux-gnueabi %s -o %t
2// RUN: ld.lld %t -o %t2 2>&1 | FileCheck %s
3// REQUIRES: arm
4
5// On Arm v6 the range of a Thumb BL instruction is only 4 megabytes as the
6// extended range encoding is not supported. The following example has a Thumb
7// BL that is out of range on ARM v6 and requires a range extension thunk.
8// As v6 does not support MOVT or MOVW instructions the Thunk must not
9// use these instructions either. At present we don't support v6 so we give a
10// warning for unsupported features.
11
12// CHECK: warning: lld uses extended branch encoding, no object with architecture supporting feature detected.
13// CHECK-NEXT: warning: lld may use movt/movw, no object with architecture supporting feature detected.
14// ARM v6 supports blx so we shouldn't see the blx not supported warning.
15// CHECK-NOT: warning: lld uses blx instruction, no object with architecture supporting feature detected.
16 .text
17 .syntax unified
18 .cpu arm1176jzf-s
19 .eabi_attribute 6, 6 @ Tag_CPU_arch
20 .globl _start
21 .type _start,%function
22 .balign 0x1000
23_start:
24 bl thumbfunc
25 bx lr
26
27 .thumb
28 .section .text.2, "ax", %progbits
29 .globl thumbfunc
30 .type thumbfunc,%function
31thumbfunc:
32 bl farthumbfunc
33
34// 6 Megabytes, enough to make farthumbfunc out of range of caller on a v6
35// Arm, but not on a v7 Arm.
36 .section .text.3, "ax", %progbits
37 .space 0x200000
38
39 .section .text.4, "ax", %progbits
40 .space 0x200000
41
42 .section .text.5, "ax", %progbits
43 .space 0x200000
44
45 .thumb
46 .section .text.6, "ax", %progbits
47 .balign 0x1000
48 .globl farthumbfunc
49 .type farthumbfunc,%function
50farthumbfunc:
51 bx lr
deps/lld/test/ELF/arm-blx-v4t.s created+30
...@@ -0,0 +1,30 @@
1// RUN: llvm-mc -filetype=obj -triple=arm-none-linux-gnueabi %s -o %t
2// RUN: ld.lld %t -o %t2 2>&1 | FileCheck %s
3// REQUIRES: arm
4
5// On Arm v4t there is no blx instruction so all interworking must go via
6// a thunk. At present we don't support v4t so we give a warning for unsupported
7// features.
8
9// CHECK: warning: lld uses blx instruction, no object with architecture supporting feature detected.
10// CHECK-NEXT: warning: lld uses extended branch encoding, no object with architecture supporting feature detected.
11// CHECK-NEXT: warning: lld may use movt/movw, no object with architecture supporting feature detected.
12
13 .text
14 .syntax unified
15 .cpu arm7tdmi
16 .eabi_attribute 6, 2 @ Tag_CPU_arch
17 .arm
18 .globl _start
19 .type _start,%function
20 .p2align 2
21_start:
22 bl thumbfunc
23 bx lr
24
25 .thumb
26 .section .text.2, "ax", %progbits
27 .globl thumbfunc
28 .type thumbfunc,%function
29thumbfunc:
30 bx lr
deps/lld/test/ELF/arm-branch-error.s deleted-19
...@@ -1,19 +0,0 @@
1// RUN: llvm-mc -filetype=obj -triple=armv7a-none-linux-gnueabi %s -o %t
2// RUN: llvm-mc -filetype=obj -triple=armv7a-none-linux-gnueabi %S/Inputs/far-arm-abs.s -o %tfar
3// RUN: not ld.lld %t %tfar -o %t2 2>&1 | FileCheck %s
4// REQUIRES: arm
5 .syntax unified
6 .section .text, "ax",%progbits
7 .globl _start
8 .balign 0x10000
9 .type _start,%function
10_start:
11 // address of too_far symbols are just out of range of ARM branch with
12 // 26-bit immediate field and an addend of -8
13 bl too_far1
14 b too_far2
15 beq too_far3
16
17// CHECK: R_ARM_CALL out of range
18// CHECK-NEXT: R_ARM_JUMP24 out of range
19// CHECK-NEXT: R_ARM_JUMP24 out of range
deps/lld/test/ELF/arm-branch-rangethunk.s created+34
...@@ -0,0 +1,34 @@
1// RUN: llvm-mc -filetype=obj -triple=armv7a-none-linux-gnueabi %s -o %t
2// RUN: llvm-mc -filetype=obj -triple=armv7a-none-linux-gnueabi %S/Inputs/far-arm-abs.s -o %tfar
3// RUN: ld.lld %t %tfar -o %t2 2>&1
4// RUN: llvm-objdump -d -triple=armv7a-none-linux-gnueabi %t2 | FileCheck %s
5// REQUIRES: arm
6 .syntax unified
7 .section .text, "ax",%progbits
8 .globl _start
9 .balign 0x10000
10 .type _start,%function
11_start:
12 // address of too_far symbols are just out of range of ARM branch with
13 // 26-bit immediate field and an addend of -8
14 bl too_far1
15 b too_far2
16 beq too_far3
17
18// CHECK: Disassembly of section .text:
19// CHECK-NEXT: _start:
20// CHECK-NEXT: 20000: 01 00 00 eb bl #4 <__ARMv7ABSLongThunk_too_far1>
21// CHECK-NEXT: 20004: 03 00 00 ea b #12 <__ARMv7ABSLongThunk_too_far2>
22// CHECK-NEXT: 20008: 05 00 00 0a beq #20 <__ARMv7ABSLongThunk_too_far3>
23// CHECK: __ARMv7ABSLongThunk_too_far1:
24// CHECK-NEXT: 2000c: 08 c0 00 e3 movw r12, #8
25// CHECK-NEXT: 20010: 02 c2 40 e3 movt r12, #514
26// CHECK-NEXT: 20014: 1c ff 2f e1 bx r12
27// CHECK: __ARMv7ABSLongThunk_too_far2:
28// CHECK-NEXT: 20018: 0c c0 00 e3 movw r12, #12
29// CHECK-NEXT: 2001c: 02 c2 40 e3 movt r12, #514
30// CHECK-NEXT: 20020: 1c ff 2f e1 bx r12
31// CHECK: __ARMv7ABSLongThunk_too_far3:
32// CHECK-NEXT: 20024: 10 c0 00 e3 movw r12, #16
33// CHECK-NEXT: 20028: 02 c2 40 e3 movt r12, #514
34// CHECK-NEXT: 2002c: 1c ff 2f e1 bx r12
deps/lld/test/ELF/arm-branch-undef-weak-plt-thunk.s created+35
...@@ -0,0 +1,35 @@
1// RUN: llvm-mc -filetype=obj -triple=armv7a-none-linux-gnueabi %S/Inputs/arm-shared.s -o %t
2// RUN: ld.lld %t --shared -o %t.so
3// RUN: llvm-mc -filetype=obj -triple=armv7a-none-linux-gnueabi %s -o %t2
4// RUN: ld.lld %t2 %t.so -o %t3
5// RUN: llvm-objdump -d -triple=armv7a-none-linux-gnueabi -start-address=69632 -stop-address=69664 %t3 | FileCheck %s
6// REQUIRES: arm
7
8// When we are dynamic linking, undefined weak references have a PLT entry so
9// we must create a thunk for the branch to the PLT entry.
10
11 .text
12 .globl bar2
13 .weak undefined_weak_we_expect_a_plt_entry_for
14_start:
15 .globl _start
16 .type _start, %function
17 b undefined_weak_we_expect_a_plt_entry_for
18 bl bar2
19// Create 32 Mb gap between the call to the weak reference and the PLT so that
20// the b and bl need a range-extension thunk.
21 .section .text.1, "ax", %progbits
22 .space 32 * 1024 * 1024
23
24// CHECK: Disassembly of section .text:
25// CHECK-NEXT: _start:
26// CHECK-NEXT: 11000: 00 00 00 ea b #0 <__ARMv7ABSLongThunk_undefined_weak_we_expect_a_plt_entry_for>
27// CHECK-NEXT: 11004: 02 00 00 eb bl #8 <__ARMv7ABSLongThunk_bar2>
28// CHECK: __ARMv7ABSLongThunk_undefined_weak_we_expect_a_plt_entry_for:
29// CHECK-NEXT: 11008: 40 c0 01 e3 movw r12, #4160
30// CHECK-NEXT: 1100c: 01 c2 40 e3 movt r12, #513
31// CHECK-NEXT: 11010: 1c ff 2f e1 bx r12
32// CHECK: __ARMv7ABSLongThunk_bar2:
33// CHECK-NEXT: 11014: 50 c0 01 e3 movw r12, #4176
34// CHECK-NEXT: 11018: 01 c2 40 e3 movt r12, #513
35// CHECK-NEXT: 1101c: 1c ff 2f e1 bx r12
deps/lld/test/ELF/arm-copy.s+1-1
...@@ -2,7 +2,7 @@...@@ -2,7 +2,7 @@
2// RUN: llvm-mc -filetype=obj -triple=armv7a-none-linux-gnueabi %s -o %t.o2// RUN: llvm-mc -filetype=obj -triple=armv7a-none-linux-gnueabi %s -o %t.o
3// RUN: llvm-mc -filetype=obj -triple=armv7a-none-linux-gnueabi %p/Inputs/relocation-copy-arm.s -o %t2.o3// RUN: llvm-mc -filetype=obj -triple=armv7a-none-linux-gnueabi %p/Inputs/relocation-copy-arm.s -o %t2.o
4// RUN: ld.lld -shared %t2.o -o %t2.so4// RUN: ld.lld -shared %t2.o -o %t2.so
5// RUN: ld.lld %t.o %t2.so -o %t35// RUN: ld.lld --hash-style=sysv %t.o %t2.so -o %t3
6// RUN: llvm-readobj -s -r --expand-relocs -symbols %t3 | FileCheck %s6// RUN: llvm-readobj -s -r --expand-relocs -symbols %t3 | FileCheck %s
7// RUN: llvm-objdump -d -triple=armv7a-none-linux-gnueabi %t3 | FileCheck -check-prefix=CODE %s7// RUN: llvm-objdump -d -triple=armv7a-none-linux-gnueabi %t3 | FileCheck -check-prefix=CODE %s
8// RUN: llvm-objdump -s -triple=armv7a-none-linux-gnueabi -section=.rodata %t3 | FileCheck -check-prefix=RODATA %s8// RUN: llvm-objdump -s -triple=armv7a-none-linux-gnueabi -section=.rodata %t3 | FileCheck -check-prefix=RODATA %s
deps/lld/test/ELF/arm-exidx-dedup-and-sentinel.s created+29
...@@ -0,0 +1,29 @@
1// REQUIRES: arm
2// RUN: llvm-mc -filetype=obj -triple=armv7a-none-linux-gnueabi %s -o %t.o
3// RUN: ld.lld %t.o -shared -o %t.so --section-start .text=0x2000 --section-start .ARM.exidx=0x1000
4// RUN: llvm-objdump -s -triple=armv7a-none-linux-gnueabi %t.so | FileCheck %s
5
6 .syntax unified
7
8 .section .text.foo, "ax", %progbits
9 .globl foo
10foo:
11 .fnstart
12 bx lr
13 .cantunwind
14 .fnend
15
16 .section .text.bar, "ax", %progbits
17 .globl bar
18bar:
19 .fnstart
20 bx lr
21 .cantunwind
22 .fnend
23
24// CHECK: Contents of section .ARM.exidx:
25// 1000 + 1000 = 0x2000 = foo
26// The entry for bar is the same as previous and is eliminated.
27// The sentinel entry should be preserved.
28// 1008 + 1000 = 0x2008 = bar + sizeof(bar)
29// CHECK-NEXT: 1000 00100000 01000000 00100000 01000000
deps/lld/test/ELF/arm-exidx-dedup.s created+126
...@@ -0,0 +1,126 @@
1// RUN: llvm-mc -filetype=obj -triple=armv7a-none-linux-gnueabi %s -o %t
2// RUN: ld.lld %t --no-merge-exidx-entries -o %t2
3// RUN: llvm-objdump -s %t2 | FileCheck --check-prefix CHECK-DUPS %s
4// RUN: ld.lld %t -o %t3
5// RUN: llvm-objdump -s %t3 | FileCheck %s
6// REQUIRES: arm
7// Test that lld can at least remove duplicate .ARM.exidx sections. A more
8// fine grained implementation will be able to remove duplicate entries within
9// a .ARM.exidx section.
10
11// With duplicate entries
12// CHECK-DUPS: Contents of section .ARM.exidx:
13// CHECK-DUPS-NEXT: 100d4 2c0f0000 01000000 280f0000 01000000
14// CHECK-DUPS-NEXT: 100e4 240f0000 01000000 200f0000 01000000
15// CHECK-DUPS-NEXT: 100f4 1c0f0000 08849780 180f0000 08849780
16// CHECK-DUPS-NEXT: 10104 140f0000 08849780 100f0000 14000000
17// CHECK-DUPS-NEXT: 10114 0c0f0000 18000000 080f0000 01000000
18// CHECK-DUPS-NEXT: Contents of section .ARM.extab:
19
20// After duplicate entry removal
21// CHECK: Contents of section .ARM.exidx:
22// CHECK-NEXT: 100d4 2c0f0000 01000000 340f0000 08849780
23// CHECK-NEXT: 100e4 380f0000 14000000 340f0000 18000000
24// CHECK-NEXT: 100f4 300f0000 01000000
25// CHECK-NEXT: Contents of section .ARM.extab:
26 .syntax unified
27
28 // Expect 1 EXIDX_CANTUNWIND entry.
29 .section .text.00, "ax", %progbits
30 .globl _start
31_start:
32 .fnstart
33 bx lr
34 .cantunwind
35 .fnend
36
37 // Expect .ARM.exidx.text.01 to be identical to .ARM.exidx.text.00
38 .section .text.01, "ax", %progbits
39 .globl f1
40f1:
41 .fnstart
42 bx lr
43 .cantunwind
44 .fnend
45
46 // Expect 2 EXIDX_CANTUNWIND entries, these can be duplicated into
47 // .ARM.exid.text.00
48 .section .text.02, "ax", %progbits
49 .globl f2
50f2:
51 .fnstart
52 bx lr
53 .cantunwind
54 .fnend
55
56 .globl f3
57f3:
58 .fnstart
59 bx lr
60 .cantunwind
61 .fnend
62
63 // Expect inline unwind instructions, not a duplicate of previous entry.
64 .section .text.03, "ax", %progbits
65 .global f4
66f4:
67 .fnstart
68 bx lr
69 .save {r7, lr}
70 .setfp r7, sp, #0
71 .fnend
72
73 // Expect 2 inline unwind entries that are a duplicate of
74 // .ARM.exidx.text.03
75 .section .text.04, "ax", %progbits
76 .global f5
77f5:
78 .fnstart
79 bx lr
80 .save {r7, lr}
81 .setfp r7, sp, #0
82 .fnend
83
84 .global f6
85f6:
86 .fnstart
87 bx lr
88 .save {r7, lr}
89 .setfp r7, sp, #0
90 .fnend
91
92 // Expect a section with a reference to an .ARM.extab. Not a duplicate
93 // of previous inline table entry.
94 .section .text.05, "ax",%progbits
95 .global f7
96f7:
97 .fnstart
98 bx lr
99 .personality __gxx_personality_v0
100 .handlerdata
101 .long 0
102 .fnend
103
104 // Expect a reference to an identical .ARM.extab. We do not try to
105 // deduplicate references to .ARM.extab sections.
106 .section .text.06, "ax",%progbits
107 .global f8
108f8:
109 .fnstart
110 bx lr
111 .personality __gxx_personality_v0
112 .handlerdata
113 .long 0
114 .fnend
115
116 // Dummy implementation of personality routines to satisfy reference from
117 // exception tables
118 .section .text.__gcc_personality_v0, "ax", %progbits
119 .global __gxx_personality_v0
120__gxx_personality_v0:
121 bx lr
122
123 .section .text.__aeabi_unwind_cpp_pr0, "ax", %progbits
124 .global __aeabi_unwind_cpp_pr0
125__aeabi_unwind_cpp_pr0:
126 bx lr
deps/lld/test/ELF/arm-exidx-gc.s+1-1
...@@ -1,5 +1,5 @@...@@ -1,5 +1,5 @@
1// RUN: llvm-mc -filetype=obj -triple=armv7a-none-linux-gnueabi %s -o %t1// RUN: llvm-mc -filetype=obj -triple=armv7a-none-linux-gnueabi %s -o %t
2// RUN: ld.lld %t -o %t2 --gc-sections 2>&12// RUN: ld.lld %t --no-merge-exidx-entries -o %t2 --gc-sections 2>&1
3// RUN: llvm-objdump -d -triple=armv7a-none-linux-gnueabi %t2 | FileCheck %s3// RUN: llvm-objdump -d -triple=armv7a-none-linux-gnueabi %t2 | FileCheck %s
4// RUN: llvm-objdump -s -triple=armv7a-none-linux-gnueabi %t2 | FileCheck -check-prefix=CHECK-EXIDX %s4// RUN: llvm-objdump -s -triple=armv7a-none-linux-gnueabi %t2 | FileCheck -check-prefix=CHECK-EXIDX %s
5// REQUIRES: arm5// REQUIRES: arm
deps/lld/test/ELF/arm-exidx-order.s+2-2
...@@ -1,6 +1,6 @@...@@ -1,6 +1,6 @@
1// RUN: llvm-mc -filetype=obj -triple=armv7a-none-linux-gnueabi %s -o %t1// RUN: llvm-mc -filetype=obj -triple=armv7a-none-linux-gnueabi %s -o %t
2// RUN: llvm-mc -filetype=obj -triple=armv7a-none-linux-gnueabi %S/Inputs/arm-exidx-cantunwind.s -o %tcantunwind2// RUN: llvm-mc -filetype=obj -triple=armv7a-none-linux-gnueabi %S/Inputs/arm-exidx-cantunwind.s -o %tcantunwind
3// RUN: ld.lld %t %tcantunwind -o %t2 2>&13// RUN: ld.lld --no-merge-exidx-entries %t %tcantunwind -o %t2 2>&1
4// RUN: llvm-objdump -d -triple=armv7a-none-linux-gnueabi %t2 | FileCheck %s4// RUN: llvm-objdump -d -triple=armv7a-none-linux-gnueabi %t2 | FileCheck %s
5// RUN: llvm-objdump -s -triple=armv7a-none-linux-gnueabi %t2 | FileCheck -check-prefix=CHECK-EXIDX %s5// RUN: llvm-objdump -s -triple=armv7a-none-linux-gnueabi %t2 | FileCheck -check-prefix=CHECK-EXIDX %s
6// RUN: llvm-readobj --program-headers --sections %t2 | FileCheck -check-prefix=CHECK-PT %s6// RUN: llvm-readobj --program-headers --sections %t2 | FileCheck -check-prefix=CHECK-PT %s
...@@ -8,7 +8,7 @@...@@ -8,7 +8,7 @@
8// RUN: echo "SECTIONS { \8// RUN: echo "SECTIONS { \
9// RUN: .text 0x11000 : { *(.text*) } \9// RUN: .text 0x11000 : { *(.text*) } \
10// RUN: .ARM.exidx : { *(.ARM.exidx) } } " > %t.script10// RUN: .ARM.exidx : { *(.ARM.exidx) } } " > %t.script
11// RUN: ld.lld --script %t.script %tcantunwind %t -o %t3 2>&111// RUN: ld.lld --no-merge-exidx-entries --script %t.script %tcantunwind %t -o %t3 2>&1
12// RUN: llvm-objdump -d -triple=armv7a-none-linux-gnueabi %t3 | FileCheck -check-prefix=CHECK-SCRIPT %s12// RUN: llvm-objdump -d -triple=armv7a-none-linux-gnueabi %t3 | FileCheck -check-prefix=CHECK-SCRIPT %s
13// RUN: llvm-objdump -s -triple=armv7a-none-linux-gnueabi %t3 | FileCheck -check-prefix=CHECK-SCRIPT-EXIDX %s13// RUN: llvm-objdump -s -triple=armv7a-none-linux-gnueabi %t3 | FileCheck -check-prefix=CHECK-SCRIPT-EXIDX %s
14// REQUIRES: arm14// REQUIRES: arm
deps/lld/test/ELF/arm-exidx-sentinel-orphan.s+1-1
...@@ -4,7 +4,7 @@...@@ -4,7 +4,7 @@
4// RUN: echo "SECTIONS { \4// RUN: echo "SECTIONS { \
5// RUN: .text 0x11000 : { *(.text*) } \5// RUN: .text 0x11000 : { *(.text*) } \
6// RUN: } " > %t.script6// RUN: } " > %t.script
7// RUN: ld.lld --script %t.script %t -o %t27// RUN: ld.lld --no-merge-exidx-entries --script %t.script %t -o %t2
8// RUN: llvm-objdump -s -triple=armv7a-none-linux-gnueabi %t2 | FileCheck %s8// RUN: llvm-objdump -s -triple=armv7a-none-linux-gnueabi %t2 | FileCheck %s
9// REQUIRES: arm9// REQUIRES: arm
1010
deps/lld/test/ELF/arm-exidx-shared.s+3-3
...@@ -1,5 +1,5 @@...@@ -1,5 +1,5 @@
1// RUN: llvm-mc -filetype=obj -triple=armv7a-none-linux-gnueabi %s -o %t1// RUN: llvm-mc -filetype=obj -triple=armv7a-none-linux-gnueabi %s -o %t
2// RUN: ld.lld %t --shared -o %t2 2>&12// RUN: ld.lld --hash-style=sysv %t --shared -o %t2 2>&1
3// RUN: llvm-readobj --relocations %t2 | FileCheck %s3// RUN: llvm-readobj --relocations %t2 | FileCheck %s
4// RUN: llvm-objdump -s -triple=armv7a-none-linux-gnueabi %t2 | FileCheck -check-prefix=CHECK-EXTAB %s4// RUN: llvm-objdump -s -triple=armv7a-none-linux-gnueabi %t2 | FileCheck -check-prefix=CHECK-EXTAB %s
5// REQUIRES: arm5// REQUIRES: arm
...@@ -41,5 +41,5 @@ __aeabi_unwind_cpp_pr0:...@@ -41,5 +41,5 @@ __aeabi_unwind_cpp_pr0:
41// CHECK-NEXT: 0x200C R_ARM_JUMP_SLOT __gxx_personality_v041// CHECK-NEXT: 0x200C R_ARM_JUMP_SLOT __gxx_personality_v0
4242
43// CHECK-EXTAB: Contents of section .ARM.extab:43// CHECK-EXTAB: Contents of section .ARM.extab:
44// 014c + 0ed8 = 0x1024 = __gxx_personality_v0(PLT)44// 014c + 0ee4 = 0x1030 = __gxx_personality_v0(PLT)
45// CHECK-EXTAB-NEXT: 014c d80e0000 b0b0b000 0000000045// CHECK-EXTAB-NEXT: 014c e40e0000 b0b0b000 00000000
deps/lld/test/ELF/arm-gnu-ifunc-plt.s+28-28
...@@ -1,7 +1,7 @@...@@ -1,7 +1,7 @@
1// RUN: llvm-mc -filetype=obj -triple=armv7a-linux-gnueabihf %S/Inputs/arm-shared.s -o %t1.o1// RUN: llvm-mc -filetype=obj -triple=armv7a-linux-gnueabihf %S/Inputs/arm-shared.s -o %t1.o
2// RUN: ld.lld %t1.o --shared -o %t.so2// RUN: ld.lld %t1.o --shared -o %t.so
3// RUN: llvm-mc -filetype=obj -triple=armv7a-linux-gnueabihf %s -o %t.o3// RUN: llvm-mc -filetype=obj -triple=armv7a-linux-gnueabihf %s -o %t.o
4// RUN: ld.lld %t.so %t.o -o %tout4// RUN: ld.lld --hash-style=sysv %t.so %t.o -o %tout
5// RUN: llvm-objdump -triple=armv7a-linux-gnueabihf -d %tout | FileCheck %s --check-prefix=DISASM5// RUN: llvm-objdump -triple=armv7a-linux-gnueabihf -d %tout | FileCheck %s --check-prefix=DISASM
6// RUN: llvm-objdump -s %tout | FileCheck %s --check-prefix=GOTPLT6// RUN: llvm-objdump -s %tout | FileCheck %s --check-prefix=GOTPLT
7// RUN: llvm-readobj -r -dynamic-table %tout | FileCheck %s7// RUN: llvm-readobj -r -dynamic-table %tout | FileCheck %s
...@@ -33,49 +33,49 @@...@@ -33,49 +33,49 @@
33// DISASM-NEXT: 11000: 1e ff 2f e1 bx lr33// DISASM-NEXT: 11000: 1e ff 2f e1 bx lr
34// DISASM: bar:34// DISASM: bar:
35// DISASM-NEXT: 11004: 1e ff 2f e1 bx lr35// DISASM-NEXT: 11004: 1e ff 2f e1 bx lr
36// DISASM: _start:36// DISASM: _start:
37// DISASM-NEXT: 11008: 14 00 00 eb bl #8037// DISASM-NEXT: 11008: 14 00 00 eb bl #80
38// DISASM-NEXT: 1100c: 17 00 00 eb bl #9238// DISASM-NEXT: 1100c: 17 00 00 eb bl #92
39// DISASM: 11010: 00 00 00 00 .word 0x0000000039// DISASM: $d.1:
40// DISASM-NEXT: 11010: 00 00 00 00 .word 0x00000000
40// DISASM-NEXT: 11014: 04 00 00 00 .word 0x0000000441// DISASM-NEXT: 11014: 04 00 00 00 .word 0x00000004
41// DISASM: 11018: 05 00 00 eb bl #2042// DISASM: 11018: 08 00 00 eb bl #32
42// DISASM-NEXT: 1101c: 08 00 00 eb bl #3243// DISASM-NEXT: 1101c: 0b 00 00 eb bl #44
43// DISASM-NEXT: Disassembly of section .plt:44// DISASM-NEXT: Disassembly of section .plt:
44// DISASM-NEXT: $a:45// DISASM-NEXT: $a:
45// DISASM-NEXT: 11020: 04 e0 2d e5 str lr, [sp, #-4]!46// DISASM-NEXT: 11020: 04 e0 2d e5 str lr, [sp, #-4]!
46// DISASM-NEXT: 11024: 04 e0 9f e5 ldr lr, [pc, #4]47// DISASM-NEXT: 11024: 00 e6 8f e2 add lr, pc, #0, #12
47// DISASM-NEXT: 11028: 0e e0 8f e0 add lr, pc, lr48// DISASM-NEXT: 11028: 00 ea 8e e2 add lr, lr, #0, #20
48// DISASM-NEXT: 1102c: 08 f0 be e5 ldr pc, [lr, #8]!49// DISASM-NEXT: 1102c: dc ff be e5 ldr pc, [lr, #4060]!
49// DISASM: $d:50// DISASM: $d:
50// DISASM-NEXT: 11030: d0 0f 00 00 .word 0x00000fd051// DISASM-NEXT: 11030: d4 d4 d4 d4 .word 0xd4d4d4d4
52// DISASM-NEXT: 11034: d4 d4 d4 d4 .word 0xd4d4d4d4
53// DISASM-NEXT: 11038: d4 d4 d4 d4 .word 0xd4d4d4d4
54// DISASM-NEXT: 1103c: d4 d4 d4 d4 .word 0xd4d4d4d4
51// DISASM: $a:55// DISASM: $a:
52// DISASM-NEXT: 11034: 04 c0 9f e5 ldr r12, [pc, #4]56// DISASM-NEXT: 11040: 00 c6 8f e2 add r12, pc, #0, #12
53// DISASM-NEXT: 11038: 0f c0 8c e0 add r12, r12, pc57// DISASM-NEXT: 11044: 00 ca 8c e2 add r12, r12, #0, #20
54// DISASM-NEXT: 1103c: 00 f0 9c e5 ldr pc, [r12]58// DISASM-NEXT: 11048: c4 ff bc e5 ldr pc, [r12, #4036]!
55// DISASM: $d:59// DISASM: $d:
56// DISASM-NEXT: 11040: cc 0f 00 00 .word 0x00000fcc60// DISASM-NEXT: 1104c: d4 d4 d4 d4 .word 0xd4d4d4d4
57// DISASM: $a:61// DISASM: $a:
58// DISASM-NEXT: 11044: 04 c0 9f e5 ldr r12, [pc, #4]62// DISASM-NEXT: 11050: 00 c6 8f e2 add r12, pc, #0, #12
59// DISASM-NEXT: 11048: 0f c0 8c e0 add r12, r12, pc63// DISASM-NEXT: 11054: 00 ca 8c e2 add r12, r12, #0, #20
60// DISASM-NEXT: 1104c: 00 f0 9c e5 ldr pc, [r12]64// DISASM-NEXT: 11058: b8 ff bc e5 ldr pc, [r12, #4024]!
61// DISASM: $d:65// DISASM: $d:
62// DISASM-NEXT: 11050: c0 0f 00 00 .word 0x00000fc0
63// Alignment to 16 byte boundary not strictly necessary on ARM, but harmless
64// DISASM-NEXT: 11054: d4 d4 d4 d4 .word 0xd4d4d4d4
65// DISASM-NEXT: 11058: d4 d4 d4 d4 .word 0xd4d4d4d4
66// DISASM-NEXT: 1105c: d4 d4 d4 d4 .word 0xd4d4d4d466// DISASM-NEXT: 1105c: d4 d4 d4 d4 .word 0xd4d4d4d4
67// DISASM: $a:67// DISASM: $a:
68// DISASM-NEXT: 11060: 04 c0 9f e5 ldr r12, [pc, #4]68// DISASM-NEXT: 11060: 00 c6 8f e2 add r12, pc, #0, #12
69// DISASM-NEXT: 11064: 0f c0 8c e0 add r12, r12, pc69// DISASM-NEXT: 11064: 02 ca 8c e2 add r12, r12, #8192
70// DISASM-NEXT: 11068: 00 f0 9c e5 ldr pc, [r12]70// DISASM-NEXT: 11068: 18 f0 bc e5 ldr pc, [r12, #24]!
71// DISASM: $d:71// DISASM: $d:
72// DISASM-NEXT: 1106c: 14 20 00 00 .word 0x0000201472// DISASM-NEXT: 1106c: d4 d4 d4 d4 .word 0xd4d4d4d4
73// DISASM: $a:73// DISASM: $a:
74// DISASM-NEXT: 11070: 04 c0 9f e5 ldr r12, [pc, #4]74// DISASM-NEXT: 11070: 00 c6 8f e2 add r12, pc, #0, #12
75// DISASM-NEXT: 11074: 0f c0 8c e0 add r12, r12, pc75// DISASM-NEXT: 11074: 02 ca 8c e2 add r12, r12, #8192
76// DISASM-NEXT: 11078: 00 f0 9c e5 ldr pc, [r12]76// DISASM-NEXT: 11078: 0c f0 bc e5 ldr pc, [r12, #12]!
77// DISASM: $d:77// DISASM: $d:
78// DISASM-NEXT: 1107c: 08 20 00 00 .word 0x0000200878// DISASM-NEXT: 1107c: d4 d4 d4 d4 .word 0xd4d4d4d4
7979
80.syntax unified80.syntax unified
81.text81.text
deps/lld/test/ELF/arm-gnu-ifunc.s+20-21
...@@ -111,30 +111,29 @@ _start:...@@ -111,30 +111,29 @@ _start:
111111
112// DISASM: Disassembly of section .text:112// DISASM: Disassembly of section .text:
113// DISASM-NEXT: foo:113// DISASM-NEXT: foo:
114// DISASM-NEXT: 11000: 1e ff 2f e1 bx lr114// DISASM-NEXT: 11000: 1e ff 2f e1 bx lr
115// DISASM: bar:115// DISASM: bar:
116// DISASM-NEXT: 11004: 1e ff 2f e1 bx lr116// DISASM-NEXT: 11004: 1e ff 2f e1 bx lr
117// DISASM: _start:117// DISASM: _start:
118// DISASM-NEXT: 11008: 04 00 00 eb bl #16118// DISASM-NEXT: 11008: 04 00 00 eb bl #16
119// DISASM-NEXT: 1100c: 07 00 00 eb bl #28119// DISASM-NEXT: 1100c: 07 00 00 eb bl #28
120// 1 * 65536 + 244 = 0x100f4 __rel_iplt_start120// 1 * 65536 + 244 = 0x100f4 __rel_iplt_start
121// DISASM-NEXT: 11010: f4 00 00 e3 movw r0, #244121// DISASM-NEXT: 11010: f4 00 00 e3 movw r0, #244
122// DISASM-NEXT: 11014: 01 00 40 e3 movt r0, #1122// DISASM-NEXT: 11014: 01 00 40 e3 movt r0, #1
123// 1 * 65536 + 260 = 0x10104 __rel_iplt_end123// 1 * 65536 + 260 = 0x10104 __rel_iplt_end
124// DISASM-NEXT: 11018: 04 01 00 e3 movw r0, #260124// DISASM-NEXT: 11018: 04 01 00 e3 movw r0, #260
125// DISASM-NEXT: 1101c: 01 00 40 e3 movt r0, #1125// DISASM-NEXT: 1101c: 01 00 40 e3 movt r0, #1
126// DISASM-NEXT: Disassembly of section .plt:126// DISASM-NEXT: Disassembly of section .plt:
127// DISASM: $a:127// DISASM-NEXT: $a:
128// DISASM-NEXT: 11020: 04 c0 9f e5 ldr r12, [pc, #4]128// DISASM-NEXT: 11020: 00 c6 8f e2 add r12, pc, #0, #12
129// DISASM-NEXT: 11024: 0f c0 8c e0 add r12, r12, pc129// DISASM-NEXT: 11024: 00 ca 8c e2 add r12, r12, #0, #20
130// 11024 + 8 + fd4 = 0x12000130// DISASM-NEXT: 11028: d8 ff bc e5 ldr pc, [r12, #4056]!
131// DISASM-NEXT: 11028: 00 f0 9c e5 ldr pc, [r12]
132// DISASM: $d:131// DISASM: $d:
133// DISASM-NEXT: 1102c: d4 0f 00 00 .word 0x00000fd4132// DISASM-NEXT: 1102c: d4 d4 d4 d4 .word 0xd4d4d4d4
134// DISASM: $a:133// DISASM: $a:
135// DISASM-NEXT: 11030: 04 c0 9f e5 ldr r12, [pc, #4]134// DISASM-NEXT: 11030: 00 c6 8f e2 add r12, pc, #0, #12
136// DISASM-NEXT: 11034: 0f c0 8c e0 add r12, r12, pc135// DISASM-NEXT: 11034: 00 ca 8c e2 add r12, r12, #0, #20
137// 11034 + 8 + fc8 = 0x12004 136// DISASM-NEXT: 11038: cc ff bc e5 ldr pc, [r12, #4044]!
138// DISASM-NEXT: 11038: 00 f0 9c e5 ldr pc, [r12]
139// DISASM: $d:137// DISASM: $d:
140// DISASM-NEXT: 1103c: c8 0f 00 00 .word 0x00000fc8138// DISASM-NEXT: 1103c: d4 d4 d4 d4 .word 0xd4d4d4d4
139
deps/lld/test/ELF/arm-got-relative.s+1-1
...@@ -1,6 +1,6 @@...@@ -1,6 +1,6 @@
1// REQUIRES: arm1// REQUIRES: arm
2// RUN: llvm-mc -position-independent -filetype=obj -triple=armv7a-none-linux-gnueabi %s -o %t.o2// RUN: llvm-mc -position-independent -filetype=obj -triple=armv7a-none-linux-gnueabi %s -o %t.o
3// RUN: ld.lld %t.o -shared -o %t3// RUN: ld.lld --hash-style=sysv %t.o -shared -o %t
4// RUN: llvm-readobj -s -symbols -dyn-relocations %t | FileCheck %s4// RUN: llvm-readobj -s -symbols -dyn-relocations %t | FileCheck %s
5// RUN: llvm-objdump -d -triple=armv7a-none-linux-gnueabi %t | FileCheck -check-prefix=CODE %s5// RUN: llvm-objdump -d -triple=armv7a-none-linux-gnueabi %t | FileCheck -check-prefix=CODE %s
6 .syntax unified6 .syntax unified
deps/lld/test/ELF/arm-icf-exidx.s+1-1
...@@ -23,7 +23,7 @@ __aeabi_unwind_cpp_pr0:...@@ -23,7 +23,7 @@ __aeabi_unwind_cpp_pr0:
23 bx lr23 bx lr
2424
25// CHECK: Disassembly of section .text:25// CHECK: Disassembly of section .text:
26// CHECK-NEXT: f:26// CHECK-NEXT: g:
27// CHECK-NEXT: 11000: 1e ff 2f e1 bx lr27// CHECK-NEXT: 11000: 1e ff 2f e1 bx lr
28// CHECK: __aeabi_unwind_cpp_pr0:28// CHECK: __aeabi_unwind_cpp_pr0:
29// CHECK-NEXT: 11004: 00 f0 20 e3 nop29// CHECK-NEXT: 11004: 00 f0 20 e3 nop
deps/lld/test/ELF/arm-pie-relative.s+1-1
...@@ -1,5 +1,5 @@...@@ -1,5 +1,5 @@
1// RUN: llvm-mc -filetype=obj -triple=armv7a-none-linux-gnueabi %s -o %t1// RUN: llvm-mc -filetype=obj -triple=armv7a-none-linux-gnueabi %s -o %t
2// RUN: ld.lld %t --pie -o %t22// RUN: ld.lld --hash-style=sysv %t --pie -o %t2
3// RUN: llvm-readobj -r %t2 | FileCheck %s3// RUN: llvm-readobj -r %t2 | FileCheck %s
4// RUN: llvm-objdump -s %t2 | FileCheck %s --check-prefix=GOT4// RUN: llvm-objdump -s %t2 | FileCheck %s --check-prefix=GOT
5// REQUIRES: arm5// REQUIRES: arm
deps/lld/test/ELF/arm-plt-reloc.s+232-32
...@@ -2,7 +2,7 @@...@@ -2,7 +2,7 @@
2// RUN: llvm-mc -filetype=obj -triple=armv7a-none-linux-gnueabi %s -o %t22// RUN: llvm-mc -filetype=obj -triple=armv7a-none-linux-gnueabi %s -o %t2
3// RUN: ld.lld %t1 %t2 -o %t3// RUN: ld.lld %t1 %t2 -o %t
4// RUN: llvm-objdump -triple=armv7a-none-linux-gnueabi -d %t | FileCheck %s4// RUN: llvm-objdump -triple=armv7a-none-linux-gnueabi -d %t | FileCheck %s
5// RUN: ld.lld -shared %t1 %t2 -o %t35// RUN: ld.lld --hash-style=sysv -shared %t1 %t2 -o %t3
6// RUN: llvm-objdump -triple=armv7a-none-linux-gnueabi -d %t3 | FileCheck -check-prefix=DSO %s6// RUN: llvm-objdump -triple=armv7a-none-linux-gnueabi -d %t3 | FileCheck -check-prefix=DSO %s
7// RUN: llvm-readobj -s -r %t3 | FileCheck -check-prefix=DSOREL %s7// RUN: llvm-readobj -s -r %t3 | FileCheck -check-prefix=DSOREL %s
8// REQUIRES: arm8// REQUIRES: arm
...@@ -32,51 +32,55 @@ _start:...@@ -32,51 +32,55 @@ _start:
32// CHECK-NEXT: 11014: fb ff ff 0a beq #-20 <func3>32// CHECK-NEXT: 11014: fb ff ff 0a beq #-20 <func3>
3333
34// Expect PLT entries as symbols can be preempted34// Expect PLT entries as symbols can be preempted
35// The .got.plt and .plt displacement is small so we can use small PLT entries.
35// DSO: Disassembly of section .text:36// DSO: Disassembly of section .text:
36// DSO-NEXT: func1:37// DSO-NEXT: func1:
37// DSO-NEXT: 1000: 1e ff 2f e1 bx lr38// DSO-NEXT: 1000: 1e ff 2f e1 bx lr
38// DSO: func2:39// DSO: func2:
39// DSO-NEXT: 1004: 1e ff 2f e1 bx lr40// DSO-NEXT: 1004: 1e ff 2f e1 bx lr
40// DSO: func3:41// DSO: func3:
41// DSO-NEXT: 1008: 1e ff 2f e1 bx lr42// DSO-NEXT: 1008: 1e ff 2f e1 bx lr
42// DSO: _start:43// DSO: _start:
43// S(0x1034) - P(0x100c) + A(-8) = 0x20 = 3244// S(0x1040) - P(0x100c) + A(-8) = 0x2c = 32
44// DSO-NEXT: 100c: 08 00 00 ea b #3245// DSO-NEXT: 100c: 0b 00 00 ea b #44
45// S(0x1044) - P(0x1010) + A(-8) = 0x2c = 4446// S(0x1050) - P(0x1010) + A(-8) = 0x38 = 56
46// DSO-NEXT: 1010: 0b 00 00 eb bl #4447// DSO-NEXT: 1010: 0e 00 00 eb bl #56
47// S(0x1054) - P(0x1014) + A(-8) = 0x38 = 5648// S(0x10160) - P(0x1014) + A(-8) = 0x44 = 68
48// DSO-NEXT: 1014: 0e 00 00 0a beq #5649// DSO-NEXT: 1014: 11 00 00 0a beq #68
4950// DSO-NEXT: Disassembly of section .plt:
50// DSO: Disassembly of section .plt:
51// DSO-NEXT: $a:51// DSO-NEXT: $a:
52// DSO-NEXT: 1020: 04 e0 2d e5 str lr, [sp, #-4]!52// DSO-NEXT: 1020: 04 e0 2d e5 str lr, [sp, #-4]!
53// DSO-NEXT: 1024: 04 e0 9f e5 ldr lr, [pc, #4]53// (0x1024 + 8) + (0 RoR 12) + (0 RoR 20) + (0xfdc) = 0x2008 = .got.plt[3]
54// DSO-NEXT: 1028: 0e e0 8f e0 add lr, pc, lr54// DSO-NEXT: 1024: 00 e6 8f e2 add lr, pc, #0, #12
55// DSO-NEXT: 102c: 08 f0 be e5 ldr pc, [lr, #8]!55// DSO-NEXT: 1028: 00 ea 8e e2 add lr, lr, #0, #20
56// 0x1028 + 8 + 0fd0 = 0x200056// DSO-NEXT: 102c: dc ff be e5 ldr pc, [lr, #4060]!
57// DSO: $d:57// DSO: $d:
58// DSO-NEXT: 1030: d0 0f 00 00 .word 0x00000fd058// DSO-NEXT: 1030: d4 d4 d4 d4 .word 0xd4d4d4d4
59// DSO-NEXT: 1034: d4 d4 d4 d4 .word 0xd4d4d4d4
60// DSO-NEXT: 1038: d4 d4 d4 d4 .word 0xd4d4d4d4
61// DSO-NEXT: 103c: d4 d4 d4 d4 .word 0xd4d4d4d4
59// DSO: $a:62// DSO: $a:
60// DSO-NEXT: 1034: 04 c0 9f e5 ldr r12, [pc, #4]63// (0x1040 + 8) + (0 RoR 12) + (0 RoR 20) + (0xfc4) = 0x200c
61// DSO-NEXT: 1038: 0f c0 8c e0 add r12, r12, pc64// DSO-NEXT: 1040: 00 c6 8f e2 add r12, pc, #0, #12
62// DSO-NEXT: 103c: 00 f0 9c e5 ldr pc, [r12]65// DSO-NEXT: 1044: 00 ca 8c e2 add r12, r12, #0, #20
63// 0x1038 + 8 + 0fcc = 0x200c 66// DSO-NEXT: 1048: c4 ff bc e5 ldr pc, [r12, #4036]!
64// DSO: $d:67// DSO: $d:
65// DSO-NEXT: 1040: cc 0f 00 00 .word 0x00000fcc68// DSO-NEXT: 104c: d4 d4 d4 d4 .word 0xd4d4d4d4
66// DSO: $a:69// DSO: $a:
67// DSO-NEXT: 1044: 04 c0 9f e5 ldr r12, [pc, #4]70// (0x1050 + 8) + (0 RoR 12) + (0 RoR 20) + (0xfb8) = 0x2010
68// DSO-NEXT: 1048: 0f c0 8c e0 add r12, r12, pc71// DSO-NEXT: 1050: 00 c6 8f e2 add r12, pc, #0, #12
69// DSO-NEXT: 104c: 00 f0 9c e5 ldr pc, [r12]72// DSO-NEXT: 1054: 00 ca 8c e2 add r12, r12, #0, #20
70// 0x1048 + 8 + 0fc0 = 0x201073// DSO-NEXT: 1058: b8 ff bc e5 ldr pc, [r12, #4024]!
71// DSO: $d:74// DSO: $d:
72// DSO-NEXT: 1050: c0 0f 00 00 .word 0x00000fc075// DSO-NEXT: 105c: d4 d4 d4 d4 .word 0xd4d4d4d4
73// DSO: $a:76// DSO: $a:
74// DSO-NEXT: 1054: 04 c0 9f e5 ldr r12, [pc, #4]77// (0x1060 + 8) + (0 RoR 12) + (0 RoR 20) + (0xfac) = 0x2014
75// DSO-NEXT: 1058: 0f c0 8c e0 add r12, r12, pc78// DSO-NEXT: 1060: 00 c6 8f e2 add r12, pc, #0, #12
76// DSO-NEXT: 105c: 00 f0 9c e5 ldr pc, [r12]79// DSO-NEXT: 1064: 00 ca 8c e2 add r12, r12, #0, #20
77// 0x1058 + 8 + 0fb4 = 0x201480// DSO-NEXT: 1068: ac ff bc e5 ldr pc, [r12, #4012]!
78// DSO: $d:81// DSO: $d:
79// DSO-NEXT: 1060: b4 0f 00 00 .word 0x00000fb482// DSO-NEXT: 106c: d4 d4 d4 d4 .word 0xd4d4d4d4
83
8084
81// DSOREL: Name: .got.plt85// DSOREL: Name: .got.plt
82// DSOREL-NEXT: Type: SHT_PROGBITS86// DSOREL-NEXT: Type: SHT_PROGBITS
...@@ -96,3 +100,199 @@ _start:...@@ -96,3 +100,199 @@ _start:
96// DSOREL-NEXT: 0x200C R_ARM_JUMP_SLOT func1 0x0100// DSOREL-NEXT: 0x200C R_ARM_JUMP_SLOT func1 0x0
97// DSOREL-NEXT: 0x2010 R_ARM_JUMP_SLOT func2 0x0101// DSOREL-NEXT: 0x2010 R_ARM_JUMP_SLOT func2 0x0
98// DSOREL-NEXT: 0x2014 R_ARM_JUMP_SLOT func3 0x0102// DSOREL-NEXT: 0x2014 R_ARM_JUMP_SLOT func3 0x0
103
104// Test a large separation between the .plt and .got.plt
105// The .got.plt and .plt displacement is large but still within the range
106// of the short plt sequence.
107// RUN: echo "SECTIONS { \
108// RUN: .text 0x1000 : { *(.text) } \
109// RUN: .plt 0x2000 : { *(.plt) *(.plt.*) } \
110// RUN: .got.plt 0x1100000 : { *(.got.plt) } \
111// RUN: }" > %t.script
112// RUN: ld.lld --hash-style=sysv --script %t.script -shared %t1 %t2 -o %t4
113// RUN: llvm-objdump -triple=armv7a-none-linux-gnueabi -d %t4 | FileCheck --check-prefix=CHECKHIGH %s
114// RUN: llvm-readobj -s -r %t4 | FileCheck --check-prefix=DSORELHIGH %s
115
116// CHECKHIGH: Disassembly of section .text:
117// CHECKHIGH-NEXT: func1:
118// CHECKHIGH-NEXT: 1000: 1e ff 2f e1 bx lr
119// CHECKHIGH: func2:
120// CHECKHIGH-NEXT: 1004: 1e ff 2f e1 bx lr
121// CHECKHIGH: func3:
122// CHECKHIGH-NEXT: 1008: 1e ff 2f e1 bx lr
123// CHECKHIGH: _start:
124// CHECKHIGH-NEXT: 100c: 03 04 00 ea b #4108 <$a>
125// CHECKHIGH-NEXT: 1010: 06 04 00 eb bl #4120 <$a>
126// CHECKHIGH-NEXT: 1014: 09 04 00 0a beq #4132 <$a>
127// CHECKHIGH-NEXT: Disassembly of section .plt:
128// CHECKHIGH-NEXT: $a:
129// CHECKHIGH-NEXT: 2000: 04 e0 2d e5 str lr, [sp, #-4]!
130// CHECKHIGH-NEXT: 2004: 10 e6 8f e2 add lr, pc, #16, #12
131// CHECKHIGH-NEXT: 2008: fd ea 8e e2 add lr, lr, #1036288
132// CHECKHIGH-NEXT: 200c: fc ff be e5 ldr pc, [lr, #4092]!
133// CHECKHIGH: $d:
134// CHECKHIGH-NEXT: 2010: d4 d4 d4 d4 .word 0xd4d4d4d4
135// CHECKHIGH-NEXT: 2014: d4 d4 d4 d4 .word 0xd4d4d4d4
136// CHECKHIGH-NEXT: 2018: d4 d4 d4 d4 .word 0xd4d4d4d4
137// CHECKHIGH-NEXT: 201c: d4 d4 d4 d4 .word 0xd4d4d4d4
138// CHECKHIGH: $a:
139// CHECKHIGH-NEXT: 2020: 10 c6 8f e2 add r12, pc, #16, #12
140// CHECKHIGH-NEXT: 2024: fd ca 8c e2 add r12, r12, #1036288
141// CHECKHIGH-NEXT: 2028: e4 ff bc e5 ldr pc, [r12, #4068]!
142// CHECKHIGH: $d:
143// CHECKHIGH-NEXT: 202c: d4 d4 d4 d4 .word 0xd4d4d4d4
144// CHECKHIGH: $a:
145// CHECKHIGH-NEXT: 2030: 10 c6 8f e2 add r12, pc, #16, #12
146// CHECKHIGH-NEXT: 2034: fd ca 8c e2 add r12, r12, #1036288
147// CHECKHIGH-NEXT: 2038: d8 ff bc e5 ldr pc, [r12, #4056]!
148// CHECKHIGH: $d:
149// CHECKHIGH-NEXT: 203c: d4 d4 d4 d4 .word 0xd4d4d4d4
150// CHECKHIGH: $a:
151// CHECKHIGH-NEXT: 2040: 10 c6 8f e2 add r12, pc, #16, #12
152// CHECKHIGH-NEXT: 2044: fd ca 8c e2 add r12, r12, #1036288
153// CHECKHIGH-NEXT: 2048: cc ff bc e5 ldr pc, [r12, #4044]!
154// CHECKHIGH: $d:
155// CHECKHIGH-NEXT: 204c: d4 d4 d4 d4 .word 0xd4d4d4d4
156
157// DSORELHIGH: Name: .got.plt
158// DSORELHIGH-NEXT: Type: SHT_PROGBITS
159// DSORELHIGH-NEXT: Flags [
160// DSORELHIGH-NEXT: SHF_ALLOC
161// DSORELHIGH-NEXT: SHF_WRITE
162// DSORELHIGH-NEXT: ]
163// DSORELHIGH-NEXT: Address: 0x1100000
164// DSORELHIGH: Relocations [
165// DSORELHIGH-NEXT: Section (6) .rel.plt {
166// DSORELHIGH-NEXT: 0x110000C R_ARM_JUMP_SLOT func1 0x0
167// DSORELHIGH-NEXT: 0x1100010 R_ARM_JUMP_SLOT func2 0x0
168// DSORELHIGH-NEXT: 0x1100014 R_ARM_JUMP_SLOT func3 0x0
169
170// Test a very large separation between the .plt and .got.plt so we must use
171// large plt entries that do not have any range restriction.
172// RUN: echo "SECTIONS { \
173// RUN: .text 0x1000 : { *(.text) } \
174// RUN: .plt 0x2000 : { *(.plt) *(.plt.*) } \
175// RUN: .got.plt 0x11111100 : { *(.got.plt) } \
176// RUN: }" > %t2.script
177// RUN: ld.lld --hash-style=sysv --script %t2.script -shared %t1 %t2 -o %t5
178// RUN: llvm-objdump -triple=armv7a-none-linux-gnueabi -d %t5 | FileCheck --check-prefix=CHECKLONG %s
179// RUN: llvm-readobj -s -r %t5 | FileCheck --check-prefix=DSORELLONG %s
180
181// CHECKLONG: Disassembly of section .text:
182// CHECKLONG-NEXT: func1:
183// CHECKLONG-NEXT: 1000: 1e ff 2f e1 bx lr
184// CHECKLONG: func2:
185// CHECKLONG-NEXT: 1004: 1e ff 2f e1 bx lr
186// CHECKLONG: func3:
187// CHECKLONG-NEXT: 1008: 1e ff 2f e1 bx lr
188// CHECKLONG: _start:
189// CHECKLONG-NEXT: 100c: 03 04 00 ea b #4108 <$a>
190// CHECKLONG-NEXT: 1010: 06 04 00 eb bl #4120 <$a>
191// CHECKLONG-NEXT: 1014: 09 04 00 0a beq #4132 <$a>
192// CHECKLONG-NEXT: Disassembly of section .plt:
193// CHECKLONG-NEXT: $a:
194// CHECKLONG-NEXT: 2000: 04 e0 2d e5 str lr, [sp, #-4]!
195// CHECKLONG-NEXT: 2004: 04 e0 9f e5 ldr lr, [pc, #4]
196// CHECKLONG-NEXT: 2008: 0e e0 8f e0 add lr, pc, lr
197// CHECKLONG-NEXT: 200c: 08 f0 be e5 ldr pc, [lr, #8]!
198// CHECKLONG: $d:
199// CHECKLONG-NEXT: 2010: f0 f0 10 11 .word 0x1110f0f0
200// CHECKLONG-NEXT: 2014: d4 d4 d4 d4 .word 0xd4d4d4d4
201// CHECKLONG-NEXT: 2018: d4 d4 d4 d4 .word 0xd4d4d4d4
202// CHECKLONG-NEXT: 201c: d4 d4 d4 d4 .word 0xd4d4d4d4
203// CHECKLONG: $a:
204// CHECKLONG-NEXT: 2020: 04 c0 9f e5 ldr r12, [pc, #4]
205// CHECKLONG-NEXT: 2024: 0f c0 8c e0 add r12, r12, pc
206// CHECKLONG-NEXT: 2028: 00 f0 9c e5 ldr pc, [r12]
207// CHECKLONG: $d:
208// CHECKLONG-NEXT: 202c: e0 f0 10 11 .word 0x1110f0e0
209// CHECKLONG: $a:
210// CHECKLONG-NEXT: 2030: 04 c0 9f e5 ldr r12, [pc, #4]
211// CHECKLONG-NEXT: 2034: 0f c0 8c e0 add r12, r12, pc
212// CHECKLONG-NEXT: 2038: 00 f0 9c e5 ldr pc, [r12]
213// CHECKLONG: $d:
214// CHECKLONG-NEXT: 203c: d4 f0 10 11 .word 0x1110f0d4
215// CHECKLONG: $a:
216// CHECKLONG-NEXT: 2040: 04 c0 9f e5 ldr r12, [pc, #4]
217// CHECKLONG-NEXT: 2044: 0f c0 8c e0 add r12, r12, pc
218// CHECKLONG-NEXT: 2048: 00 f0 9c e5 ldr pc, [r12]
219// CHECKLONG: $d:
220// CHECKLONG-NEXT: 204c: c8 f0 10 11 .word 0x1110f0c8
221
222// DSORELLONG: Name: .got.plt
223// DSORELLONG-NEXT: Type: SHT_PROGBITS
224// DSORELLONG-NEXT: Flags [
225// DSORELLONG-NEXT: SHF_ALLOC
226// DSORELLONG-NEXT: SHF_WRITE
227// DSORELLONG-NEXT: ]
228// DSORELLONG-NEXT: Address: 0x11111100
229// DSORELLONG: Relocations [
230// DSORELLONG-NEXT: Section (6) .rel.plt {
231// DSORELLONG-NEXT: 0x1111110C R_ARM_JUMP_SLOT func1 0x0
232// DSORELLONG-NEXT: 0x11111110 R_ARM_JUMP_SLOT func2 0x0
233// DSORELLONG-NEXT: 0x11111114 R_ARM_JUMP_SLOT func3 0x0
234
235// Test a separation between the .plt and .got.plt that is part in range of
236// short table entries and part needing long entries. We use the long entries
237// only when we need to.
238// RUN: echo "SECTIONS { \
239// RUN: .text 0x1000 : { *(.text) } \
240// RUN: .plt 0x2000 : { *(.plt) *(.plt.*) } \
241// RUN: .got.plt 0x8002020 : { *(.got.plt) } \
242// RUN: }" > %t3.script
243// RUN: ld.lld --hash-style=sysv --script %t3.script -shared %t1 %t2 -o %t6
244// RUN: llvm-objdump -triple=armv7a-none-linux-gnueabi -d %t6 | FileCheck --check-prefix=CHECKMIX %s
245// RUN: llvm-readobj -s -r %t6 | FileCheck --check-prefix=DSORELMIX %s
246
247// CHECKMIX: Disassembly of section .text:
248// CHECKMIX-NEXT: func1:
249// CHECKMIX-NEXT: 1000: 1e ff 2f e1 bx lr
250// CHECKMIX: func2:
251// CHECKMIX-NEXT: 1004: 1e ff 2f e1 bx lr
252// CHECKMIX: func3:
253// CHECKMIX-NEXT: 1008: 1e ff 2f e1 bx lr
254// CHECKMIX: _start:
255// CHECKMIX-NEXT: 100c: 03 04 00 ea b #4108 <$a>
256// CHECKMIX-NEXT: 1010: 06 04 00 eb bl #4120 <$a>
257// CHECKMIX-NEXT: 1014: 09 04 00 0a beq #4132 <$a>
258// CHECKMIX-NEXT: Disassembly of section .plt:
259// CHECKMIX-NEXT: $a:
260// CHECKMIX-NEXT: 2000: 04 e0 2d e5 str lr, [sp, #-4]!
261// CHECKMIX-NEXT: 2004: 04 e0 9f e5 ldr lr, [pc, #4]
262// CHECKMIX-NEXT: 2008: 0e e0 8f e0 add lr, pc, lr
263// CHECKMIX-NEXT: 200c: 08 f0 be e5 ldr pc, [lr, #8]!
264// CHECKMIX: $d:
265// CHECKMIX-NEXT: 2010: 10 00 00 08 .word 0x08000010
266// CHECKMIX-NEXT: 2014: d4 d4 d4 d4 .word 0xd4d4d4d4
267// CHECKMIX-NEXT: 2018: d4 d4 d4 d4 .word 0xd4d4d4d4
268// CHECKMIX-NEXT: 201c: d4 d4 d4 d4 .word 0xd4d4d4d4
269// CHECKMIX: $a:
270// CHECKMIX-NEXT: 2020: 04 c0 9f e5 ldr r12, [pc, #4]
271// CHECKMIX-NEXT: 2024: 0f c0 8c e0 add r12, r12, pc
272// CHECKMIX-NEXT: 2028: 00 f0 9c e5 ldr pc, [r12]
273// CHECKMIX: $d:
274// CHECKMIX-NEXT: 202c: 00 00 00 08 .word 0x08000000
275// CHECKMIX: $a:
276// CHECKMIX-NEXT: 2030: 7f c6 8f e2 add r12, pc, #133169152
277// CHECKMIX-NEXT: 2034: ff ca 8c e2 add r12, r12, #1044480
278// CHECKMIX-NEXT: 2038: f8 ff bc e5 ldr pc, [r12, #4088]!
279// CHECKMIX: $d:
280// CHECKMIX-NEXT: 203c: d4 d4 d4 d4 .word 0xd4d4d4d4
281// CHECKMIX: $a:
282// CHECKMIX-NEXT: 2040: 7f c6 8f e2 add r12, pc, #133169152
283// CHECKMIX-NEXT: 2044: ff ca 8c e2 add r12, r12, #1044480
284// CHECKMIX-NEXT: 2048: ec ff bc e5 ldr pc, [r12, #4076]!
285// CHECKMIX: $d:
286// CHECKMIX-NEXT: 204c: d4 d4 d4 d4 .word 0xd4d4d4d4
287
288// DSORELMIX: Name: .got.plt
289// DSORELMIX-NEXT: Type: SHT_PROGBITS
290// DSORELMIX-NEXT: Flags [
291// DSORELMIX-NEXT: SHF_ALLOC
292// DSORELMIX-NEXT: SHF_WRITE
293// DSORELMIX-NEXT: ]
294// DSORELMIX-NEXT: Address: 0x8002020
295// DSORELMIX: Section (6) .rel.plt {
296// DSORELMIX-NEXT: 0x800202C R_ARM_JUMP_SLOT func1 0x0
297// DSORELMIX-NEXT: 0x8002030 R_ARM_JUMP_SLOT func2 0x0
298// DSORELMIX-NEXT: 0x8002034 R_ARM_JUMP_SLOT func3 0x0
deps/lld/test/ELF/arm-static-defines.s+1-1
...@@ -1,5 +1,5 @@...@@ -1,5 +1,5 @@
1// RUN: llvm-mc -filetype=obj -triple=armv7a-none-linux-gnueabi %s -o %t1// RUN: llvm-mc -filetype=obj -triple=armv7a-none-linux-gnueabi %s -o %t
2// RUN: ld.lld %t --static -o %t2 2>&12// RUN: ld.lld --no-merge-exidx-entries %t --static -o %t2 2>&1
3// RUN: llvm-readobj --symbols %t2 | FileCheck %s3// RUN: llvm-readobj --symbols %t2 | FileCheck %s
4// REQUIRES: arm4// REQUIRES: arm
55
deps/lld/test/ELF/arm-thumb-branch-error.s deleted-19
...@@ -1,19 +0,0 @@
1// RUN: llvm-mc -filetype=obj -triple=thumbv7a-none-linux-gnueabi %s -o %t
2// RUN: llvm-mc -filetype=obj -triple=thumbv7a-none-linux-gnueabi %S/Inputs/far-arm-thumb-abs.s -o %tfar
3// RUN: not ld.lld %t %tfar -o %t2 2>&1 | FileCheck %s
4// REQUIRES: arm
5 .syntax unified
6 .section .text, "ax",%progbits
7 .globl _start
8 .balign 0x10000
9 .type _start,%function
10_start:
11 // address of too_far symbols are just out of range of ARM branch with
12 // 26-bit immediate field and an addend of -8
13 bl too_far1
14 b too_far2
15 beq.w too_far3
16
17// CHECK: R_ARM_THM_CALL out of range
18// CHECK-NEXT: R_ARM_THM_JUMP24 out of range
19// CHECK-NEXT: R_ARM_THM_JUMP19 out of range
deps/lld/test/ELF/arm-thumb-branch-rangethunk.s created+36
...@@ -0,0 +1,36 @@
1// RUN: llvm-mc -filetype=obj -triple=thumbv7a-none-linux-gnueabi %s -o %t
2// RUN: llvm-mc -filetype=obj -triple=thumbv7a-none-linux-gnueabi %S/Inputs/far-arm-thumb-abs.s -o %tfar
3// RUN: ld.lld %t %tfar -o %t2 2>&1
4// RUN: llvm-objdump -d -triple=thumbv7a-none-linux-gnueabi %t2
5// REQUIRES: arm
6 .syntax unified
7 .thumb
8 .section .text, "ax",%progbits
9 .globl _start
10 .balign 0x10000
11 .type _start,%function
12_start:
13 // address of too_far symbols are just out of range of ARM branch with
14 // 26-bit immediate field and an addend of -8
15 bl too_far1
16 b too_far2
17 beq.w too_far3
18
19// CHECK: Disassembly of section .text:
20// CHECK-NEXT: _start:
21// CHECK-NEXT: 20000: 00 f0 04 f8 bl #8
22// CHECK-NEXT: 20004: 00 f0 07 b8 b.w #14 <__Thumbv7ABSLongThunk_too_far2>
23// CHECK-NEXT: 20008: 00 f0 0a 80 beq.w #20 <__Thumbv7ABSLongThunk_too_far3>
24// CHECK: __Thumbv7ABSLongThunk_too_far1:
25// CHECK-NEXT: 2000c: 40 f2 05 0c movw r12, #5
26// CHECK-NEXT: 20010: c0 f2 02 1c movt r12, #258
27// CHECK-NEXT: 20014: 60 47 bx r12
28// CHECK: __Thumbv7ABSLongThunk_too_far2:
29// CHECK-NEXT: 20016: 40 f2 09 0c movw r12, #9
30// CHECK-NEXT: 2001a: c0 f2 02 1c movt r12, #258
31// CHECK-NEXT: 2001e: 60 47 bx r12
32// CHECK: __Thumbv7ABSLongThunk_too_far3:
33// CHECK-NEXT: 20020: 40 f2 0d 0c movw r12, #13
34// CHECK-NEXT: 20024: c0 f2 12 0c movt r12, #18
35// CHECK-NEXT: 20028: 60 47 bx r12
36// CHECK-NEXT: 2002a: 00 00 movs r0, r0
deps/lld/test/ELF/arm-thumb-condbranch-thunk.s created+117
...@@ -0,0 +1,117 @@
1// REQUIRES: arm
2// RUN: llvm-mc -filetype=obj -triple=thumbv7a-none-linux-gnueabi %s -o %t
3// RUN: ld.lld %t -o %t2 2>&1
4// The output file is large, most of it zeroes. We dissassemble only the
5// parts we need to speed up the test and avoid a large output file
6// RUN: llvm-objdump -d %t2 -start-address=524288 -stop-address=524316 -triple=thumbv7a-linux-gnueabihf | FileCheck -check-prefix=CHECK1 %s
7// RUN: llvm-objdump -d %t2 -start-address=1048576 -stop-address=1048584 -triple=thumbv7a-linux-gnueabihf | FileCheck -check-prefix=CHECK2 %s
8// RUN: llvm-objdump -d %t2 -start-address=1572864 -stop-address=1572872 -triple=thumbv7a-linux-gnueabihf | FileCheck -check-prefix=CHECK3 %s
9// RUN: llvm-objdump -d %t2 -start-address=5242884 -stop-address=5242894 -triple=thumbv7a-linux-gnueabihf | FileCheck -check-prefix=CHECK4 %s
10// RUN: llvm-objdump -d %t2 -start-address=5767168 -stop-address=5767174 -triple=thumbv7a-linux-gnueabihf | FileCheck -check-prefix=CHECK5 %s
11// RUN: llvm-objdump -d %t2 -start-address=16777220 -stop-address=16777240 -triple=thumbv7a-linux-gnueabihf | FileCheck -check-prefix=CHECK6 %s
12// RUN: llvm-objdump -d %t2 -start-address=17825792 -stop-address=17825798 -triple=thumbv7a-linux-gnueabihf | FileCheck -check-prefix=CHECK7 %s
13// Test Range extension Thunks for the Thumb conditional branch instruction.
14// This instruction only has a range of 1Mb whereas all the other Thumb wide
15// Branch instructions have 16Mb range. We still place our pre-created Thunk
16// Sections at 16Mb intervals as conditional branches to a target defined
17// in a different section are rare.
18 .syntax unified
19// Define a function aligned on a half megabyte boundary
20 .macro FUNCTION suff
21 .section .text.\suff\(), "ax", %progbits
22 .thumb
23 .balign 0x80000
24 .globl tfunc\suff\()
25 .type tfunc\suff\(), %function
26tfunc\suff\():
27 bx lr
28 .endm
29
30 .globl _start
31_start:
32 FUNCTION 00
33// Long Range Thunk needed for 16Mb range branch, can reach pre-created Thunk
34// Section
35 bl tfunc33
36// CHECK1: Disassembly of section .text:
37// CHECK1-NEXT: tfunc00:
38// CHECK1-NEXT: 80000: 70 47 bx lr
39// CHECK1-NEXT: 80002: 7f f3 ff d7 bl #16252926
40// CHECK1: __Thumbv7ABSLongThunk_tfunc05:
41// CHECK1-NEXT: 80008: 40 f2 01 0c movw r12, #1
42// CHECK1-NEXT: 8000c: c0 f2 30 0c movt r12, #48
43// CHECK1-NEXT: 80010: 60 47 bx r12
44// CHECK1: __Thumbv7ABSLongThunk_tfunc00:
45// CHECK1-NEXT: 80012: 40 f2 01 0c movw r12, #1
46// CHECK1-NEXT: 80016: c0 f2 08 0c movt r12, #8
47// CHECK1-NEXT: 8001a: 60 47 bx r12
48 FUNCTION 01
49// tfunc02 is within range of tfunc02
50 beq.w tfunc02
51// tfunc05 is out of range, and we can't reach the pre-created Thunk Section
52// create a new one.
53 bne.w tfunc05
54// CHECK2: tfunc01:
55// CHECK2-NEXT: 100000: 70 47 bx lr
56// CHECK2-NEXT: 100002: 3f f0 fd a7 beq.w #524282 <tfunc02>
57// CHECK2-NEXT: 100006: 7f f4 ff a7 bne.w #-524290 <__Thumbv7ABSLongThunk_tfunc05>
58 FUNCTION 02
59// We can reach the Thunk Section created for bne.w tfunc05
60 bne.w tfunc05
61 beq.w tfunc00
62// CHECK3: 180000: 70 47 bx lr
63// CHECK3-NEXT: 180002: 40 f4 01 80 bne.w #-1048574 <__Thumbv7ABSLongThunk_tfunc05>
64// CHECK3-NEXT: 180006: 00 f4 04 80 beq.w #-1048568 <__Thumbv7ABSLongThunk_tfunc00>
65 FUNCTION 03
66 FUNCTION 04
67 FUNCTION 05
68 FUNCTION 06
69 FUNCTION 07
70 FUNCTION 08
71 FUNCTION 09
72// CHECK4: __Thumbv7ABSLongThunk_tfunc03:
73// CHECK4-NEXT: 500004: 40 f2 01 0c movw r12, #1
74// CHECK4-NEXT: 500008: c0 f2 20 0c movt r12, #32
75// CHECK4-NEXT: 50000c: 60 47 bx r12
76 FUNCTION 10
77// We can't reach any Thunk Section, create a new one
78 beq.w tfunc03
79// CHECK5: tfunc10:
80// CHECK5-NEXT: 580000: 70 47 bx lr
81// CHECK5-NEXT: 580002: 3f f4 ff a7 beq.w #-524290 <__Thumbv7ABSLongThunk_tfunc03>
82 FUNCTION 11
83 FUNCTION 12
84 FUNCTION 13
85 FUNCTION 14
86 FUNCTION 15
87 FUNCTION 16
88 FUNCTION 17
89 FUNCTION 18
90 FUNCTION 19
91 FUNCTION 20
92 FUNCTION 21
93 FUNCTION 22
94 FUNCTION 23
95 FUNCTION 24
96 FUNCTION 25
97 FUNCTION 26
98 FUNCTION 27
99 FUNCTION 28
100 FUNCTION 29
101 FUNCTION 30
102 FUNCTION 31
103// CHECK6: __Thumbv7ABSLongThunk_tfunc33:
104// CHECK6-NEXT: 1000004: 40 f2 01 0c movw r12, #1
105// CHECK6-NEXT: 1000008: c0 f2 10 1c movt r12, #272
106// CHECK6-NEXT: 100000c: 60 47 bx r12
107// CHECK6: __Thumbv7ABSLongThunk_tfunc00:
108// CHECK6-NEXT: 100000e: 40 f2 01 0c movw r12, #1
109// CHECK6-NEXT: 1000012: c0 f2 08 0c movt r12, #8
110// CHECK6-NEXT: 1000016: 60 47 bx r12
111 FUNCTION 32
112 FUNCTION 33
113 // We should be able to reach an existing ThunkSection.
114 b.w tfunc00
115// CHECK7: tfunc33:
116// CHECK7-NEXT: 1100000: 70 47 bx lr
117// CHECK7-NEXT: 1100002: 00 f7 04 b8 b.w #-1048568 <__Thumbv7ABSLongThunk_tfunc00>
deps/lld/test/ELF/arm-thumb-interwork-shared.s+20-17
...@@ -19,34 +19,37 @@ sym1:...@@ -19,34 +19,37 @@ sym1:
19// CHECK-NEXT: 1000: 00 f0 02 b8 b.w #4 <__ThumbV7PILongThunk_elsewhere>19// CHECK-NEXT: 1000: 00 f0 02 b8 b.w #4 <__ThumbV7PILongThunk_elsewhere>
20// CHECK-NEXT: 1004: 00 f0 06 b8 b.w #12 <__ThumbV7PILongThunk_weakref>20// CHECK-NEXT: 1004: 00 f0 06 b8 b.w #12 <__ThumbV7PILongThunk_weakref>
21// CHECK: __ThumbV7PILongThunk_elsewhere:21// CHECK: __ThumbV7PILongThunk_elsewhere:
22// CHECK-NEXT: 1008: 40 f2 20 0c movw r12, #3222// CHECK-NEXT: 1008: 40 f2 2c 0c movw r12, #44
23// CHECK-NEXT: 100c: c0 f2 00 0c movt r12, #023// CHECK-NEXT: 100c: c0 f2 00 0c movt r12, #0
24// CHECK-NEXT: 1010: fc 44 add r12, pc24// CHECK-NEXT: 1010: fc 44 add r12, pc
25// CHECK-NEXT: 1012: 60 47 bx r1225// CHECK-NEXT: 1012: 60 47 bx r12
26
27// CHECK: __ThumbV7PILongThunk_weakref:26// CHECK: __ThumbV7PILongThunk_weakref:
28// CHECK-NEXT: 1014: 40 f2 24 0c movw r12, #3627// CHECK-NEXT: 1014: 40 f2 30 0c movw r12, #48
29// CHECK-NEXT: 1018: c0 f2 00 0c movt r12, #028// CHECK-NEXT: 1018: c0 f2 00 0c movt r12, #0
30// CHECK-NEXT: 101c: fc 44 add r12, pc29// CHECK-NEXT: 101c: fc 44 add r12, pc
31// CHECK-NEXT: 101e: 60 47 bx r1230// CHECK-NEXT: 101e: 60 47 bx r12
3231
33// PLT: Disassembly of section .plt:32// PLT: Disassembly of section .plt:
34// PLT: $a:33// PLT-NEXT: $a:
35// PLT-NEXT: 1020: 04 e0 2d e5 str lr, [sp, #-4]!34// PLT-NEXT: 1020: 04 e0 2d e5 str lr, [sp, #-4]!
36// PLT-NEXT: 1024: 04 e0 9f e5 ldr lr, [pc, #4]35// PLT-NEXT: 1024: 00 e6 8f e2 add lr, pc, #0, #12
37// PLT-NEXT: 1028: 0e e0 8f e0 add lr, pc, lr36// PLT-NEXT: 1028: 00 ea 8e e2 add lr, lr, #0, #20
38// PLT-NEXT: 102c: 08 f0 be e5 ldr pc, [lr, #8]!37// PLT-NEXT: 102c: dc ff be e5 ldr pc, [lr, #4060]!
39// PLT: $d:38// PLT: $d:
40// PLT-NEXT: 1030: d0 0f 00 00 .word 0x00000fd039// PLT-NEXT: 1030: d4 d4 d4 d4 .word 0xd4d4d4d4
40// PLT-NEXT: 1034: d4 d4 d4 d4 .word 0xd4d4d4d4
41// PLT-NEXT: 1038: d4 d4 d4 d4 .word 0xd4d4d4d4
42// PLT-NEXT: 103c: d4 d4 d4 d4 .word 0xd4d4d4d4
41// PLT: $a:43// PLT: $a:
42// PLT-NEXT: 1034: 04 c0 9f e5 ldr r12, [pc, #4]44// PLT-NEXT: 1040: 00 c6 8f e2 add r12, pc, #0, #12
43// PLT-NEXT: 1038: 0f c0 8c e0 add r12, r12, pc45// PLT-NEXT: 1044: 00 ca 8c e2 add r12, r12, #0, #20
44// PLT-NEXT: 103c: 00 f0 9c e5 ldr pc, [r12]46// PLT-NEXT: 1048: c4 ff bc e5 ldr pc, [r12, #4036]!
45// PLT: $d:47// PLT: $d:
46// PLT-NEXT: 1040: cc 0f 00 00 .word 0x00000fcc48// PLT-NEXT: 104c: d4 d4 d4 d4 .word 0xd4d4d4d4
47// PLT: $a:49// PLT: $a:
48// PLT-NEXT: 1044: 04 c0 9f e5 ldr r12, [pc, #4]50// PLT-NEXT: 1050: 00 c6 8f e2 add r12, pc, #0, #12
49// PLT-NEXT: 1048: 0f c0 8c e0 add r12, r12, pc51// PLT-NEXT: 1054: 00 ca 8c e2 add r12, r12, #0, #20
50// PLT-NEXT: 104c: 00 f0 9c e5 ldr pc, [r12]52// PLT-NEXT: 1058: b8 ff bc e5 ldr pc, [r12, #4024]!
51// PLT: $d:53// PLT: $d:
52// PLT-NEXT: 1050: c0 0f 00 00 .word 0x00000fc054// PLT-NEXT: 105c: d4 d4 d4 d4 .word 0xd4d4d4d4
55
deps/lld/test/ELF/arm-thumb-mix-range-thunk-os.s created+195
...@@ -0,0 +1,195 @@
1// REQUIRES: arm
2// RUN: llvm-mc -filetype=obj -triple=armv7a-none-linux-gnueabi %s -o %t
3// RUN: ld.lld %t -o %t2 2>&1
4// The output file is large, most of it zeroes. We dissassemble only the
5// parts we need to speed up the test and avoid a large output file
6// RUN: llvm-objdump -d %t2 -start-address=1048576 -stop-address=1048604 -triple=armv7a-linux-gnueabihf | FileCheck -check-prefix=CHECK1 %s
7// RUN: llvm-objdump -d %t2 -start-address=2097152 -stop-address=2097162 -triple=thumbv7a-linux-gnueabihf | FileCheck -check-prefix=CHECK2 %s
8// RUN: llvm-objdump -d %t2 -start-address=16777220 -stop-address=16777232 -triple=armv7a-linux-gnueabihf | FileCheck -check-prefix=CHECK3 %s
9// RUN: llvm-objdump -d %t2 -start-address=16777232 -stop-address=16777242 -triple=thumbv7a-linux-gnueabihf | FileCheck -check-prefix=CHECK4 %s
10// RUN: llvm-objdump -d %t2 -start-address=32505860 -stop-address=32505870 -triple=thumbv7a-linux-gnueabihf | FileCheck -check-prefix=CHECK5 %s
11// RUN: llvm-objdump -d %t2 -start-address=35651584 -stop-address=35651590 -triple=thumbv7a-linux-gnueabihf | FileCheck -check-prefix=CHECK6 %s
12// RUN: llvm-objdump -d %t2 -start-address=36700160 -stop-address=36700168 -triple=armv7a-linux-gnueabihf | FileCheck -check-prefix=CHECK7 %s
13// RUN: llvm-objdump -d %t2 -start-address=48234500 -stop-address=48234512 -triple=armv7a-linux-gnueabihf | FileCheck -check-prefix=CHECK8 %s
14// RUN: llvm-objdump -d %t2 -start-address=63963140 -stop-address=63963160 -triple=thumbv7a-linux-gnueabihf | FileCheck -check-prefix=CHECK9 %s
15// RUN: llvm-objdump -d %t2 -start-address=68157440 -stop-address=68157452 -triple=armv7a-linux-gnueabihf | FileCheck -check-prefix=CHECK10 %s
16// RUN: llvm-objdump -d %t2 -start-address=69206016 -stop-address=69206024 -triple=thumbv7a-linux-gnueabihf | FileCheck -check-prefix=CHECK11 %s
17
18// Test the Range extension Thunks for ARM and Thumb when all the code is in a
19// single OutputSection. The ARM branches and branch and link instructions
20// have a range of 32Mb, the Thumb unconditional branch and
21// branch and link instructions have . We create a series of Functions a
22// megabyte apart. We expect range extension thunks to be created when a
23// branch is out of range. Thunks will be reused whenever they are in range
24 .syntax unified
25
26// Define a function aligned on a megabyte boundary
27 .macro ARMFUNCTION suff
28 .section .text.\suff\(), "ax", %progbits
29 .arm
30 .balign 0x100000
31 .globl afunc\suff\()
32 .type afunc\suff\(), %function
33afunc\suff\():
34 bx lr
35 .endm
36
37// Define a function aligned on a megabyte boundary
38 .macro THUMBFUNCTION suff
39 .section .text.\suff\(), "ax", %progbits
40 .thumb
41 .balign 0x100000
42 .globl tfunc\suff\()
43 .type tfunc\suff\(), %function
44tfunc\suff\():
45 bx lr
46 .endm
47
48 .section .text, "ax", %progbits
49 .thumb
50 .globl _start
51_start:
52
53 ARMFUNCTION 00
54// Expect ARM bl to be in range (can use blx to change state)
55 bl tfunc31
56// ARM b and beq are in range but need Thunk to change state to Thumb
57 b tfunc31
58 beq tfunc31
59// afunc32 is out of range of ARM branch and branch and link
60 bl afunc32
61 b afunc32
62 bne afunc32
63// CHECK1: afunc00:
64// CHECK1-NEXT: 100000: 1e ff 2f e1 bx lr
65// CHECK1-NEXT: 100004: fd ff 7b fa blx #32505844
66// CHECK1-NEXT: 100008: fd ff 3b ea b #15728628
67// CHECK1-NEXT: 10000c: fc ff 3b 0a beq #15728624
68// CHECK1-NEXT: 100010: fa ff 7f eb bl #33554408
69// CHECK1-NEXT: 100014: f9 ff 7f ea b #33554404
70// CHECK1-NEXT: 100018: f8 ff 7f 1a bne #33554400
71 THUMBFUNCTION 01
72// Expect Thumb bl to be in range (can use blx to change state)
73 bl afunc14
74// In range but need thunk to change state to Thumb
75 b.w afunc14
76// CHECK2: tfunc01:
77// CHECK2-NEXT: 200000: 70 47 bx lr
78// CHECK2-NEXT: 200002: ff f0 fe c7 blx #13631484
79// CHECK2-NEXT: 200006: 00 f2 03 90 b.w #14680070 <__Thumbv7ABSLongThunk_afunc14>
80
81 ARMFUNCTION 02
82 THUMBFUNCTION 03
83 ARMFUNCTION 04
84 THUMBFUNCTION 05
85 ARMFUNCTION 06
86 THUMBFUNCTION 07
87 ARMFUNCTION 08
88 THUMBFUNCTION 09
89 ARMFUNCTION 10
90 THUMBFUNCTION 11
91 ARMFUNCTION 12
92 THUMBFUNCTION 13
93 ARMFUNCTION 14
94// CHECK3: __ARMv7ABSLongThunk_tfunc31:
95// CHECK3-NEXT: 1000004: 01 c0 00 e3 movw r12, #1
96// CHECK3-NEXT: 1000008: 00 c2 40 e3 movt r12, #512
97// CHECK3-NEXT: 100000c: 1c ff 2f e1 bx r12
98// CHECK4: __Thumbv7ABSLongThunk_afunc14:
99// CHECK4-NEXT: 1000010: 40 f2 00 0c movw r12, #0
100// CHECK4-NEXT: 1000014: c0 f2 f0 0c movt r12, #240
101// CHECK4-NEXT: 1000018: 60 47 bx r12
102 THUMBFUNCTION 15
103 ARMFUNCTION 16
104 THUMBFUNCTION 17
105 ARMFUNCTION 18
106 THUMBFUNCTION 19
107 ARMFUNCTION 20
108 THUMBFUNCTION 21
109 ARMFUNCTION 22
110 THUMBFUNCTION 23
111 ARMFUNCTION 24
112 THUMBFUNCTION 25
113 ARMFUNCTION 26
114 THUMBFUNCTION 27
115 ARMFUNCTION 28
116 THUMBFUNCTION 29
117 ARMFUNCTION 30
118// Expect precreated Thunk Section here
119// CHECK5: __Thumbv7ABSLongThunk_afunc00:
120// CHECK5-NEXT: 1f00004: 40 f2 00 0c movw r12, #0
121// CHECK5-NEXT: 1f00008: c0 f2 10 0c movt r12, #16
122// CHECK5-NEXT: 1f0000c: 60 47 bx r12
123 THUMBFUNCTION 31
124 ARMFUNCTION 32
125 THUMBFUNCTION 33
126// Out of range, can only reach closest Thunk Section
127 bl afunc00
128// CHECK6: tfunc33:
129// CHECK6-NEXT: 2200000: 70 47 bx lr
130// CHECK6-NEXT: 2200002: ff f4 ff ff bl #-3145730
131 ARMFUNCTION 34
132// Out of range, can reach earlier Thunk Section
133// CHECK7: afunc34:
134// CHECK7-NEXT: 2300000: 1e ff 2f e1 bx lr
135// CHECK7-NEXT: 2300004: fe ff ef fa blx #-4194312 <__Thumbv7ABSLongThunk_afunc00
136 bl afunc00
137 THUMBFUNCTION 35
138 ARMFUNCTION 36
139 THUMBFUNCTION 37
140 ARMFUNCTION 38
141 THUMBFUNCTION 39
142 ARMFUNCTION 40
143 THUMBFUNCTION 41
144 ARMFUNCTION 42
145 THUMBFUNCTION 43
146 ARMFUNCTION 44
147 THUMBFUNCTION 45
148// Expect precreated Thunk Section here
149// CHECK8: __ARMv7ABSLongThunk_tfunc35:
150// CHECK8-NEXT: 2e00004: 01 c0 00 e3 movw r12, #1
151// CHECK8-NEXT: 2e00008: 40 c2 40 e3 movt r12, #576
152// CHECK8-NEXT: 2e0000c: 1c ff 2f e1 bx r12
153 ARMFUNCTION 46
154 THUMBFUNCTION 47
155 ARMFUNCTION 48
156 THUMBFUNCTION 49
157 ARMFUNCTION 50
158 THUMBFUNCTION 51
159 ARMFUNCTION 52
160 THUMBFUNCTION 53
161 ARMFUNCTION 54
162 THUMBFUNCTION 55
163 ARMFUNCTION 56
164 THUMBFUNCTION 57
165 ARMFUNCTION 58
166 THUMBFUNCTION 59
167 ARMFUNCTION 60
168// Expect precreated Thunk Section here
169// CHECK9: __Thumbv7ABSLongThunk_afunc34:
170// CHECK9-NEXT: 3d00004: 40 f2 00 0c movw r12, #0
171// CHECK9-NEXT: 3d00008: c0 f2 30 2c movt r12, #560
172// CHECK9-NEXT: 3d0000c: 60 47 bx r12
173// CHECK9: __Thumbv7ABSLongThunk_tfunc35:
174// CHECK9-NEXT: 3d0000e: 40 f2 01 0c movw r12, #1
175// CHECK9-NEXT: 3d00012: c0 f2 40 2c movt r12, #576
176// CHECK9-NEXT: 3d00016: 60 47 bx r12
177 THUMBFUNCTION 61
178 ARMFUNCTION 62
179 THUMBFUNCTION 63
180 ARMFUNCTION 64
181// afunc34 is in range, as is tfunc35 but a branch needs a state change Thunk
182 bl afunc34
183 b tfunc35
184// CHECK10: afunc64:
185// CHECK10-NEXT: 4100000: 1e ff 2f e1 bx lr
186// CHECK10-NEXT: 4100004: fd ff 87 eb bl #-31457292 <afunc34>
187// CHECK10-NEXT: 4100008: fd ff b3 ea b #-19922956 <__ARMv7ABSLongThunk_tfunc35>
188 THUMBFUNCTION 65
189// afunc34 and tfunc35 are both out of range
190 bl afunc34
191 bl tfunc35
192// CHECK11: tfunc65:
193// CHECK11: 4200000: 70 47 bx lr
194// CHECK11-NEXT: 4200002: ff f6 ff f7 bl #-5242882
195// CHECK11-NEXT: 4200006: 00 f7 02 f0 bl #-5242876
deps/lld/test/ELF/arm-thumb-no-undefined-thunk.s+1-1
...@@ -21,4 +21,4 @@ _start:...@@ -21,4 +21,4 @@ _start:
21// 69636 = 0x11004 = next instruction21// 69636 = 0x11004 = next instruction
22// CHECK: 11000: {{.*}} bl #022// CHECK: 11000: {{.*}} bl #0
23// CHECK-NEXT: 11004: {{.*}} b.w #0 <_start+0x8>23// CHECK-NEXT: 11004: {{.*}} b.w #0 <_start+0x8>
24// CHECK-NEXT: 11008: {{.*}} b.w #0 <_start+0xC>24// CHECK-NEXT: 11008: {{.*}} b.w #0 <_start+0xc>
deps/lld/test/ELF/arm-thumb-plt-range-thunk-os.s created+92
...@@ -0,0 +1,92 @@
1// REQUIRES: arm
2// RUN: llvm-mc -filetype=obj -triple=thumbv7a-none-linux-gnueabi %s -o %t
3// RUN: ld.lld %t --shared -o %t.so
4// The output file is large, most of it zeroes. We dissassemble only the
5// parts we need to speed up the test and avoid a large output file
6// RUN: llvm-objdump -d %t.so -start-address=8388608 -stop-address=8388624 -triple=thumbv7a-linux-gnueabihf | FileCheck -check-prefix=CHECK1 %s
7// RUN: llvm-objdump -d %t.so -start-address=16777216 -stop-address=16777256 -triple=thumbv7a-linux-gnueabihf | FileCheck -check-prefix=CHECK2 %s
8// RUN: llvm-objdump -d %t.so -start-address=25165824 -stop-address=25165828 -triple=thumbv7a-linux-gnueabihf | FileCheck -check-prefix=CHECK3 %s
9// RUN: llvm-objdump -d %t.so -start-address=25165828 -stop-address=25165924 -triple=armv7a-linux-gnueabihf | FileCheck -check-prefix=CHECK4 %s
10 .syntax unified
11 .thumb
12
13// Make sure that we generate a range extension thunk to a PLT entry
14 .section ".text.1", "ax", %progbits
15 .global sym1
16 .global elsewhere
17 .type elsewhere, %function
18 .global preemptible
19 .type preemptible, %function
20 .global far_preemptible
21 .type far_preemptible, %function
22sym1:
23 bl elsewhere
24 bl preemptible
25 bx lr
26preemptible:
27 bl far_preemptible
28 bx lr
29// CHECK1: Disassembly of section .text:
30// CHECK1-NEXT: sym1:
31// CHECK1-NEXT: 800000: 00 f0 00 d8 bl #8388608
32// CHECK1-NEXT: 800004: 00 f0 04 d8 bl #8388616
33// CHECK1-NEXT: 800008: 70 47 bx lr
34// CHECK1: preemptible:
35// CHECK1-NEXT: 80000a: 00 f0 07 d8 bl #8388622
36// CHECK1-NEXT: 80000e: 70 47 bx lr
37
38 .section .text.2, "ax", %progbits
39 .balign 0x0800000
40 bx lr
41// CHECK2: __ThumbV7PILongThunk_elsewhere:
42// CHECK2-NEXT: 1000004: 40 f2 20 0c movw r12, #32
43// CHECK2-NEXT: 1000008: c0 f2 80 0c movt r12, #128
44// CHECK2-NEXT: 100000c: fc 44 add r12, pc
45// CHECK2-NEXT: 100000e: 60 47 bx r12
46// CHECK2: __ThumbV7PILongThunk_preemptible:
47// CHECK2-NEXT: 1000010: 40 f2 24 0c movw r12, #36
48// CHECK2-NEXT: 1000014: c0 f2 80 0c movt r12, #128
49// CHECK2-NEXT: 1000018: fc 44 add r12, pc
50// CHECK2-NEXT: 100001a: 60 47 bx r12
51// CHECK2: __ThumbV7PILongThunk_far_preemptible:
52// CHECK2-NEXT: 100001c: 40 f2 28 0c movw r12, #40
53// CHECK2-NEXT: 1000020: c0 f2 80 0c movt r12, #128
54// CHECK2-NEXT: 1000024: fc 44 add r12, pc
55// CHECK2-NEXT: 1000026: 60 47 bx r12
56
57 .section .text.3, "ax", %progbits
58.balign 0x0800000
59far_preemptible:
60 bl elsewhere
61// CHECK3: far_preemptible:
62// CHECK3: 1800000: 00 f0 16 e8 blx #44
63
64// CHECK4: Disassembly of section .plt:
65// CHECK4-NEXT: $a:
66// CHECK4-NEXT: 1800010: 04 e0 2d e5 str lr, [sp, #-4]!
67// CHECK4-NEXT: 1800014: 00 e6 8f e2 add lr, pc, #0, #12
68// CHECK4-NEXT: 1800018: 00 ea 8e e2 add lr, lr, #0, #20
69// CHECK4-NEXT: 180001c: ec ff be e5 ldr pc, [lr, #4076]!
70// CHECK4: $d:
71// CHECK4-NEXT: 1800020: d4 d4 d4 d4 .word 0xd4d4d4d4
72// CHECK4-NEXT: 1800024: d4 d4 d4 d4 .word 0xd4d4d4d4
73// CHECK4-NEXT: 1800028: d4 d4 d4 d4 .word 0xd4d4d4d4
74// CHECK4-NEXT: 180002c: d4 d4 d4 d4 .word 0xd4d4d4d4
75// CHECK4: $a:
76// CHECK4-NEXT: 1800030: 00 c6 8f e2 add r12, pc, #0, #12
77// CHECK4-NEXT: 1800034: 00 ca 8c e2 add r12, r12, #0, #20
78// CHECK4-NEXT: 1800038: d4 ff bc e5 ldr pc, [r12, #4052]!
79// CHECK4: $d:
80// CHECK4-NEXT: 180003c: d4 d4 d4 d4 .word 0xd4d4d4d4
81// CHECK4: $a:
82// CHECK4-NEXT: 1800040: 00 c6 8f e2 add r12, pc, #0, #12
83// CHECK4-NEXT: 1800044: 00 ca 8c e2 add r12, r12, #0, #20
84// CHECK4-NEXT: 1800048: c8 ff bc e5 ldr pc, [r12, #4040]!
85// CHECK4: $d:
86// CHECK4-NEXT: 180004c: d4 d4 d4 d4 .word 0xd4d4d4d4
87// CHECK4: $a:
88// CHECK4-NEXT: 1800050: 00 c6 8f e2 add r12, pc, #0, #12
89// CHECK4-NEXT: 1800054: 00 ca 8c e2 add r12, r12, #0, #20
90// CHECK4-NEXT: 1800058: bc ff bc e5 ldr pc, [r12, #4028]!
91// CHECK4: $d:
92// CHECK4-NEXT: 180005c: d4 d4 d4 d4 .word 0xd4d4d4d4
deps/lld/test/ELF/arm-thumb-plt-reloc.s+37-33
...@@ -2,7 +2,7 @@...@@ -2,7 +2,7 @@
2// RUN: llvm-mc -filetype=obj -triple=thumbv7a-none-linux-gnueabi %s -o %t22// RUN: llvm-mc -filetype=obj -triple=thumbv7a-none-linux-gnueabi %s -o %t2
3// RUN: ld.lld %t1 %t2 -o %t3// RUN: ld.lld %t1 %t2 -o %t
4// RUN: llvm-objdump -triple=thumbv7a-none-linux-gnueabi -d %t | FileCheck %s4// RUN: llvm-objdump -triple=thumbv7a-none-linux-gnueabi -d %t | FileCheck %s
5// RUN: ld.lld -shared %t1 %t2 -o %t35// RUN: ld.lld --hash-style=sysv -shared %t1 %t2 -o %t3
6// RUN: llvm-objdump -triple=thumbv7a-none-linux-gnueabi -d %t3 | FileCheck -check-prefix=DSOTHUMB %s6// RUN: llvm-objdump -triple=thumbv7a-none-linux-gnueabi -d %t3 | FileCheck -check-prefix=DSOTHUMB %s
7// RUN: llvm-objdump -triple=armv7a-none-linux-gnueabi -d %t3 | FileCheck -check-prefix=DSOARM %s7// RUN: llvm-objdump -triple=armv7a-none-linux-gnueabi -d %t3 | FileCheck -check-prefix=DSOARM %s
8// RUN: llvm-readobj -s -r %t3 | FileCheck -check-prefix=DSOREL %s8// RUN: llvm-readobj -s -r %t3 | FileCheck -check-prefix=DSOREL %s
...@@ -43,50 +43,54 @@ _start:...@@ -43,50 +43,54 @@ _start:
43// .text is Thumb and .plt is ARM, llvm-objdump can currently only disassemble43// .text is Thumb and .plt is ARM, llvm-objdump can currently only disassemble
44// as ARM or Thumb. Work around by disassembling twice.44// as ARM or Thumb. Work around by disassembling twice.
45// DSOTHUMB: Disassembly of section .text:45// DSOTHUMB: Disassembly of section .text:
46// DSOTHUMB: func1:46// DSOTHUMB-NEXT: func1:
47// DSOTHUMB-NEXT: 1000: 70 47 bx lr47// DSOTHUMB-NEXT: 1000: 70 47 bx lr
48// DSOTHUMB: func2:48// DSOTHUMB: func2:
49// DSOTHUMB-NEXT: 1002: 70 47 bx lr49// DSOTHUMB-NEXT: 1002: 70 47 bx lr
50// DSOTHUMB: func3:50// DSOTHUMB: func3:
51// DSOTHUMB-NEXT: 1004: 70 47 bx lr51// DSOTHUMB-NEXT: 1004: 70 47 bx lr
52// DSOTHUMB-NEXT: 1006: d4 d452// DSOTHUMB-NEXT: 1006: d4 d4 bmi #-88
53// DSOTHUMB: _start:53// DSOTHUMB: _start:
54// 0x1008 + 0x28 + 4 = 0x1034 = PLT func154// 0x1008 + 0x34 + 4 = 0x1040 = PLT func1
55// DSOTHUMB-NEXT: 1008: 00 f0 14 e8 blx #4055// DSOTHUMB-NEXT: 1008: 00 f0 1a e8 blx #52
56// 0x100c + 0x34 + 4 = 0x1044 = PLT func256// 0x100c + 0x40 + 4 = 0x1050 = PLT func2
57// DSOTHUMB-NEXT: 100c: 00 f0 1a e8 blx #5257// DSOTHUMB-NEXT: 100c: 00 f0 20 e8 blx #64
58// 0x1010 + 0x40 + 4 = 0x1054 = PLT func358// 0x1010 + 0x4C + 4 = 0x1060 = PLT func3
59// DSOTHUMB-NEXT: 1010: 00 f0 20 e8 blx #6459// DSOTHUMB-NEXT: 1010: 00 f0 26 e8 blx #76
60// DSOARM: Disassembly of section .plt:60// DSOARM: Disassembly of section .plt:
61// DSOARM-NEXT: $a:61// DSOARM-NEXT: $a:
62// DSOARM-NEXT: 1020: 04 e0 2d e5 str lr, [sp, #-4]!62// DSOARM-NEXT: 1020: 04 e0 2d e5 str lr, [sp, #-4]!
63// DSOARM-NEXT: 1024: 04 e0 9f e5 ldr lr, [pc, #4]63// (0x1024 + 8) + (0 RoR 12) + (0 RoR 20) + (0xfdc) = 0x2008 = .got.plt[3]
64// DSOARM-NEXT: 1028: 0e e0 8f e0 add lr, pc, lr64// DSOARM-NEXT: 1024: 00 e6 8f e2 add lr, pc, #0, #12
65// DSOARM-NEXT: 102c: 08 f0 be e5 ldr pc, [lr, #8]!65// DSOARM-NEXT: 1028: 00 ea 8e e2 add lr, lr, #0, #20
66// DSOARM-NEXT: 102c: dc ff be e5 ldr pc, [lr, #4060]!
66// DSOARM: $d:67// DSOARM: $d:
67// DSOARM-NEXT: 1030: d0 0f 00 00 .word 0x00000fd068
68// 0x1028 + 8 + 0fd0 = 0x200069// DSOARM-NEXT: 1030: d4 d4 d4 d4 .word 0xd4d4d4d4
70// DSOARM-NEXT: 1034: d4 d4 d4 d4 .word 0xd4d4d4d4
71// DSOARM-NEXT: 1038: d4 d4 d4 d4 .word 0xd4d4d4d4
72// DSOARM-NEXT: 103c: d4 d4 d4 d4 .word 0xd4d4d4d4
69// DSOARM: $a:73// DSOARM: $a:
70// DSOARM-NEXT: 1034: 04 c0 9f e5 ldr r12, [pc, #4]74// (0x1040 + 8) + (0 RoR 12) + (0 RoR 20) + (0xfc4) = 0x200c
71// DSOARM-NEXT: 1038: 0f c0 8c e0 add r12, r12, pc75// DSOARM-NEXT: 1040: 00 c6 8f e2 add r12, pc, #0, #12
72// DSOARM-NEXT: 103c: 00 f0 9c e5 ldr pc, [r12]76// DSOARM-NEXT: 1044: 00 ca 8c e2 add r12, r12, #0, #20
77// DSOARM-NEXT: 1048: c4 ff bc e5 ldr pc, [r12, #4036]!
73// DSOARM: $d:78// DSOARM: $d:
74// DSOARM-NEXT: 1040: cc 0f 00 00 .word 0x00000fcc79// DSOARM-NEXT: 104c: d4 d4 d4 d4 .word 0xd4d4d4d4
75// 0x1038 + 8 + 0fcc = 0x200c
76// DSOARM: $a:80// DSOARM: $a:
77// DSOARM-NEXT: 1044: 04 c0 9f e5 ldr r12, [pc, #4]81// (0x1050 + 8) + (0 RoR 12) + (0 RoR 20) + (0xfb8) = 0x2010
78// DSOARM-NEXT: 1048: 0f c0 8c e0 add r12, r12, pc82// DSOARM-NEXT: 1050: 00 c6 8f e2 add r12, pc, #0, #12
79// DSOARM-NEXT: 104c: 00 f0 9c e5 ldr pc, [r12]83// DSOARM-NEXT: 1054: 00 ca 8c e2 add r12, r12, #0, #20
84// DSOARM-NEXT: 1058: b8 ff bc e5 ldr pc, [r12, #4024]!
80// DSOARM: $d:85// DSOARM: $d:
81// DSOARM-NEXT: 1050: c0 0f 00 00 .word 0x00000fc086// DSOARM-NEXT: 105c: d4 d4 d4 d4 .word 0xd4d4d4d4
82// 0x1048 + 8 + 0fc0 = 0x2010
83// DSOARM: $a:87// DSOARM: $a:
84// DSOARM-NEXT: 1054: 04 c0 9f e5 ldr r12, [pc, #4]88// (0x1060 + 8) + (0 RoR 12) + (0 RoR 20) + (0xfac) = 0x2014
85// DSOARM-NEXT: 1058: 0f c0 8c e0 add r12, r12, pc89// DSOARM-NEXT: 1060: 00 c6 8f e2 add r12, pc, #0, #12
86// DSOARM-NEXT: 105c: 00 f0 9c e5 ldr pc, [r12]90// DSOARM-NEXT: 1064: 00 ca 8c e2 add r12, r12, #0, #20
91// DSOARM-NEXT: 1068: ac ff bc e5 ldr pc, [r12, #4012]!
87// DSOARM: $d:92// DSOARM: $d:
88// DSOARM-NEXT: 1060: b4 0f 00 00 .word 0x00000fb493// DSOARM-NEXT: 106c: d4 d4 d4 d4 .word 0xd4d4d4d4
89// 0x1058 + 8 + 0fb4 = 0x2014
9094
91// DSOREL: Name: .got.plt95// DSOREL: Name: .got.plt
92// DSOREL-NEXT: Type: SHT_PROGBITS96// DSOREL-NEXT: Type: SHT_PROGBITS
deps/lld/test/ELF/arm-thumb-range-thunk-os.s created+159
...@@ -0,0 +1,159 @@
1// REQUIRES: arm
2// RUN: llvm-mc -filetype=obj -triple=thumbv7a-none-linux-gnueabi %s -o %t
3// RUN: ld.lld %t -o %t2 2>&1
4// The output file is large, most of it zeroes. We dissassemble only the
5// parts we need to speed up the test and avoid a large output file
6// RUN: llvm-objdump -d %t2 -start-address=1048576 -stop-address=1048588 -triple=thumbv7a-linux-gnueabihf | FileCheck -check-prefix=CHECK1 %s
7// RUN: llvm-objdump -d %t2 -start-address=2097152 -stop-address=2097154 -triple=thumbv7a-linux-gnueabihf | FileCheck -check-prefix=CHECK2 %s
8// RUN: llvm-objdump -d %t2 -start-address=3145728 -stop-address=3145730 -triple=thumbv7a-linux-gnueabihf | FileCheck -check-prefix=CHECK3 %s
9// RUN: llvm-objdump -d %t2 -start-address=4194304 -stop-address=4194310 -triple=thumbv7a-linux-gnueabihf | FileCheck -check-prefix=CHECK4 %s
10// RUN: llvm-objdump -d %t2 -start-address=16777216 -stop-address=16777270 -triple=thumbv7a-linux-gnueabihf | FileCheck -check-prefix=CHECK5 %s
11// RUN: llvm-objdump -d %t2 -start-address=17825792 -stop-address=17825808 -triple=thumbv7a-linux-gnueabihf | FileCheck -check-prefix=CHECK6 %s
12// RUN: llvm-objdump -d %t2 -start-address=31457280 -stop-address=31457286 -triple=thumbv7a-linux-gnueabihf | FileCheck -check-prefix=CHECK7 %s
13// RUN: llvm-objdump -d %t2 -start-address=32505860 -stop-address=32505880 -triple=thumbv7a-linux-gnueabihf | FileCheck -check-prefix=CHECK8 %s
14// RUN: llvm-objdump -d %t2 -start-address=35651584 -stop-address=35651594 -triple=thumbv7a-linux-gnueabihf | FileCheck -check-prefix=CHECK9 %s
15// RUN: llvm-objdump -d %t2 -start-address=36700160 -stop-address=36700170 -triple=thumbv7a-linux-gnueabihf | FileCheck -check-prefix=CHECK10 %s
16
17// Test the Range extension Thunks for Thumb when all the code is in a single
18// OutputSection. The Thumb unconditional branch b.w and branch and link bl
19// instructions have a range of 16Mb. We create a series of Functions a
20// megabyte apart. We expect range extension thunks to be created when a
21// branch is out of range. Thunks will be reused whenever they are in range
22 .syntax unified
23
24// Define a function aligned on a megabyte boundary
25 .macro FUNCTION suff
26 .section .text.\suff\(), "ax", %progbits
27 .thumb
28 .balign 0x100000
29 .globl tfunc\suff\()
30 .type tfunc\suff\(), %function
31tfunc\suff\():
32 bx lr
33 .endm
34
35 .section .text, "ax", %progbits
36 .thumb
37 .globl _start
38_start:
39// tfunc00 and tfunc15 are within 16Mb no Range Thunks expected
40 bl tfunc00
41 bl tfunc15
42// tfunc16 is > 16Mb away, expect a Range Thunk to be generated, to go into
43// the first of the pre-created ThunkSections.
44 bl tfunc16
45// CHECK1: Disassembly of section .text:
46// CHECK1-NEXT: _start:
47// CHECK1-NEXT: 100000: ff f0 fe ff bl #1048572
48// CHECK1-NEXT: 100004: ff f3 fc d7 bl #16777208
49// CHECK1-NEXT: 100008: ff f2 fc d7 bl #15728632
50
51 FUNCTION 00
52// CHECK2: tfunc00:
53// CHECK2-NEXT: 200000: 70 47 bx lr
54 FUNCTION 01
55// CHECK3: tfunc01:
56// CHECK3-NEXT: 300000: 70 47 bx lr
57 FUNCTION 02
58// tfunc28 is > 16Mb away, expect a Range Thunk to be generated, to go into
59// the first of the pre-created ThunkSections.
60 b.w tfunc28
61// CHECK4: tfunc02:
62// CHECK4-NEXT: 400000: 70 47 bx lr
63// CHECK4-NEXT: 400002: 00 f0 04 90 b.w #12582920 <__Thumbv7ABSLongThunk_tfunc28>
64 FUNCTION 03
65 FUNCTION 04
66 FUNCTION 05
67 FUNCTION 06
68 FUNCTION 07
69 FUNCTION 08
70 FUNCTION 09
71 FUNCTION 10
72 FUNCTION 11
73 FUNCTION 12
74 FUNCTION 13
75 FUNCTION 14
76// Expect precreated ThunkSection here
77// CHECK5: __Thumbv7ABSLongThunk_tfunc16:
78// CHECK5-NEXT: 1000004: 40 f2 01 0c movw r12, #1
79// CHECK5-NEXT: 1000008: c0 f2 20 1c movt r12, #288
80// CHECK5-NEXT: 100000c: 60 47 bx r12
81// CHECK5: __Thumbv7ABSLongThunk_tfunc28:
82// CHECK5-NEXT: 100000e: 40 f2 01 0c movw r12, #1
83// CHECK5-NEXT: 1000012: c0 f2 e0 1c movt r12, #480
84// CHECK5-NEXT: 1000016: 60 47 bx r12
85// CHECK5: __Thumbv7ABSLongThunk_tfunc32:
86// CHECK5-NEXT: 1000018: 40 f2 01 0c movw r12, #1
87// CHECK5-NEXT: 100001c: c0 f2 20 2c movt r12, #544
88// CHECK5-NEXT: 1000020: 60 47 bx r12
89// CHECK5: __Thumbv7ABSLongThunk_tfunc33:
90// CHECK5-NEXT: 1000022: 40 f2 01 0c movw r12, #1
91// CHECK5-NEXT: 1000026: c0 f2 30 2c movt r12, #560
92// CHECK5-NEXT: 100002a: 60 47 bx r12
93// CHECK5: __Thumbv7ABSLongThunk_tfunc02:
94// CHECK5-NEXT: 100002c: 40 f2 01 0c movw r12, #1
95// CHECK5-NEXT: 1000030: c0 f2 40 0c movt r12, #64
96// CHECK5-NEXT: 1000034: 60 47 bx r12
97 FUNCTION 15
98// tfunc00 and tfunc01 are < 16Mb away, expect no range extension thunks
99 bl tfunc00
100 bl tfunc01
101// tfunc32 and tfunc33 are > 16Mb away, expect range extension thunks in the
102// precreated thunk section
103 bl tfunc32
104 bl tfunc33
105// CHECK6: tfunc15:
106// CHECK6-NEXT: 1100000: 70 47 bx lr
107// CHECK6-NEXT: 1100002: ff f4 fd d7 bl #-15728646
108// CHECK6-NEXT: 1100006: ff f5 fb d7 bl #-14680074
109// CHECK6-NEXT: 110000a: 00 f7 05 f8 bl #-1048566
110// CHECK6-NEXT: 110000e: 00 f7 08 f8 bl #-1048560
111 FUNCTION 16
112 FUNCTION 17
113 FUNCTION 18
114 FUNCTION 19
115 FUNCTION 20
116 FUNCTION 21
117 FUNCTION 22
118 FUNCTION 23
119 FUNCTION 24
120 FUNCTION 25
121 FUNCTION 26
122 FUNCTION 27
123 FUNCTION 28
124// tfunc02 is > 16Mb away, expect range extension thunks in precreated thunk
125// section
126// CHECK7: tfunc28:
127// CHECK7-NEXT: 1e00000: 70 47 bx lr
128// CHECK7-NEXT: 1e00002: 00 f6 13 90 b.w #-14680026 <__Thumbv7ABSLongThunk_tfunc02>
129
130 b.w tfunc02
131 FUNCTION 29
132// Expect another precreated thunk section here
133// CHECK8: __Thumbv7ABSLongThunk_tfunc15:
134// CHECK8-NEXT: 1f00004: 40 f2 01 0c movw r12, #1
135// CHECK8-NEXT: 1f00008: c0 f2 10 1c movt r12, #272
136// CHECK8-NEXT: 1f0000c: 60 47 bx r12
137// CHECK8: __Thumbv7ABSLongThunk_tfunc16:
138// CHECK8-NEXT: 1f0000e: 40 f2 01 0c movw r12, #1
139// CHECK8-NEXT: 1f00012: c0 f2 20 1c movt r12, #288
140// CHECK8-NEXT: 1f00016: 60 47 bx r12
141 FUNCTION 30
142 FUNCTION 31
143 FUNCTION 32
144 // tfunc15 and tfunc16 are > 16 Mb away expect Thunks in the nearest
145 // precreated thunk section.
146 bl tfunc15
147 bl tfunc16
148// CHECK9: tfunc32:
149// CHECK9: 2200000: 70 47 bx lr
150// CHECK9-NEXT: 2200002: ff f4 ff ff bl #-3145730
151// CHECK9-NEXT: 2200006: 00 f5 02 f8 bl #-3145724
152
153 FUNCTION 33
154 bl tfunc15
155 bl tfunc16
156// CHECK10: tfunc33:
157// CHECK10: 2300000: 70 47 bx lr
158// CHECK10-NEXT: 2300002: ff f7 ff f7 bl #-4194306
159// CHECK10-NEXT: 2300006: 00 f4 02 f8 bl #-4194300
deps/lld/test/ELF/arm-thumb-thunk-empty-pass.s created+32
...@@ -0,0 +1,32 @@
1// REQUIRES: arm
2// RUN: llvm-mc -filetype=obj -triple=thumbv7a-none-linux-gnueabi %s -o %t
3// RUN: ld.lld %t -o %t2 2>&1
4// RUN: llvm-objdump -d %t2 -start-address=69632 -stop-address=69646 -triple=thumbv7a-linux-gnueabihf | FileCheck -check-prefix=CHECK1 %s
5// RUN: llvm-objdump -d %t2 -start-address=16846860 -stop-address=16846874 -triple=thumbv7a-linux-gnueabihf | FileCheck -check-prefix=CHECK2 %s
6 .syntax unified
7 .global _start, foo
8 .type _start, %function
9 .section .text.start,"ax",%progbits
10_start:
11 bl _start
12 .section .text.dummy1,"ax",%progbits
13 .space 0xfffffe
14 .section .text.foo,"ax",%progbits
15 .type foo, %function
16foo:
17 bl _start
18
19// CHECK1: Disassembly of section .text:
20// CHECK1-NEXT: _start:
21// CHECK1-NEXT: 11000: ff f7 fe ff bl #-4
22// CHECK1: __Thumbv7ABSLongThunk__start:
23// CHECK1-NEXT: 11004: 41 f2 01 0c movw r12, #4097
24// CHECK1-NEXT: 11008: c0 f2 01 0c movt r12, #1
25// CHECK1-NEXT: 1100c: 60 47 bx r12
26
27// CHECK2: __Thumbv7ABSLongThunk__start:
28// CHECK2: 101100c: 41 f2 01 0c movw r12, #4097
29// CHECK2-NEXT: 1011010: c0 f2 01 0c movt r12, #1
30// CHECK2-NEXT: 1011014: 60 47 bx r12
31// CHECK2: foo:
32// CHECK2-NEXT: 1011016: ff f7 f9 ff bl #-14
deps/lld/test/ELF/arm-thumb-thunk-symbols.s+3-3
...@@ -25,18 +25,18 @@ arm_fn:...@@ -25,18 +25,18 @@ arm_fn:
25 b thumb_fn25 b thumb_fn
2626
27// CHECK: Name: __Thumbv7ABSLongThunk_arm_fn27// CHECK: Name: __Thumbv7ABSLongThunk_arm_fn
28// CHECK-NEXT: Value: 0x1100528// CHECK-NEXT: Value: 0x12005
29// CHECK-NEXT: Size: 1029// CHECK-NEXT: Size: 10
30// CHECK-NEXT: Binding: Local (0x0)30// CHECK-NEXT: Binding: Local (0x0)
31// CHECK-NEXT: Type: Function (0x2)31// CHECK-NEXT: Type: Function (0x2)
32// CHECK: Name: __ARMv7ABSLongThunk_thumb_fn32// CHECK: Name: __ARMv7ABSLongThunk_thumb_fn
33// CHECK-NEXT: Value: 0x1101033// CHECK-NEXT: Value: 0x12010
34// CHECK-NEXT: Size: 1234// CHECK-NEXT: Size: 12
35// CHECK-NEXT: Binding: Local (0x0)35// CHECK-NEXT: Binding: Local (0x0)
36// CHECK-NEXT: Type: Function (0x2)36// CHECK-NEXT: Type: Function (0x2)
3737
38// CHECK-PI: Name: __ThumbV7PILongThunk_arm_fn38// CHECK-PI: Name: __ThumbV7PILongThunk_arm_fn
39// CHECK-PI-NEXT: Value: 0x100539// CHECK-PI-NEXT: Value: 0x2005
40// CHECK-PI-NEXT: Size: 1240// CHECK-PI-NEXT: Size: 12
41// CHECK-PI-NEXT: Binding: Local (0x0)41// CHECK-PI-NEXT: Binding: Local (0x0)
42// CHECK-PI-NEXT: Type: Function (0x2)42// CHECK-PI-NEXT: Type: Function (0x2)
deps/lld/test/ELF/arm-thunk-edgecase.s created+37
...@@ -0,0 +1,37 @@
1// REQUIRES: arm
2// RUN: llvm-mc -filetype=obj -triple=armv7a-none-linux-gnueabi %s -o %t.o
3// RUN: echo "SECTIONS { \
4// RUN: .text_armfunc 0x1000 : { *(.text_armfunc) } \
5// RUN: .text_thumbfunc 0x11010 : { *(.text_thumbfunc) } \
6// RUN: }" > %tarm_to_thumb.script
7// RUN: echo "SECTIONS { \
8// RUN: .text_thumbfunc 0x1000 : { *(.text_thumbfunc) } \
9// RUN: .text_armfunc 0x1100c : { *(.text_armfunc) } \
10// RUN: }" > %tthumb_to_arm.script
11// RUN: ld.lld -shared -Bsymbolic -script %tarm_to_thumb.script %t.o -o %tarm_to_thumb.so
12// RUN: ld.lld -shared -Bsymbolic -script %tthumb_to_arm.script %t.o -o %tthumb_to_arm.so
13// RUN: llvm-objdump -triple=armv7a-none-linux-gnueabi -d %tarm_to_thumb.so | FileCheck -check-prefix=ARM-TO-THUMB %s
14// RUN: llvm-objdump -triple=thumbv7a-none-linux-gnueabi -d %tthumb_to_arm.so | FileCheck -check-prefix=THUMB-TO-ARM %s
15
16.syntax unified
17
18.arm
19.section .text_armfunc, "ax", %progbits
20.globl armfunc
21armfunc:
22 b thumbfunc
23
24.thumb
25.section .text_thumbfunc, "ax", %progbits
26.globl thumbfunc
27.thumb_func
28thumbfunc:
29 b.w armfunc
30
31// ARM-TO-THUMB: __ARMV7PILongThunk_thumbfunc:
32// ARM-TO-THUMB-NEXT: 1004: fd cf 0f e3 movw r12, #65533
33// ARM-TO-THUMB-NEXT: 1008: 00 c0 40 e3 movt r12, #0
34
35// THUMB-TO-ARM: __ThumbV7PILongThunk_armfunc:
36// THUMB-TO-ARM-NEXT: 1004: 4f f6 fc 7c movw r12, #65532
37// THUMB-TO-ARM-NEXT: 1008: c0 f2 00 0c movt r12, #0
deps/lld/test/ELF/arm-thunk-largesection.s created+42
...@@ -0,0 +1,42 @@
1// RUN: llvm-mc -filetype=obj -triple=thumbv7a-none-linux-gnueabi %s -o %t
2// RUN: ld.lld %t -o %t2 2>&1
3// RUN: llvm-objdump -d -triple=thumbv7a-none-linux-gnueabi -start-address=69632 -stop-address=69636 %t2 | FileCheck -check-prefix=CHECK1 %s
4// RUN: llvm-objdump -d -triple=thumbv7a-none-linux-gnueabi -start-address=73732 -stop-address=73742 %t2 | FileCheck -check-prefix=CHECK2 %s
5// RUN: llvm-objdump -d -triple=thumbv7a-none-linux-gnueabi -start-address=16850944 -stop-address=16850948 %t2 | FileCheck -check-prefix=CHECK3 %s
6// RUN: llvm-objdump -d -triple=thumbv7a-none-linux-gnueabi -start-address=33628160 -stop-address=33628164 %t2 | FileCheck -check-prefix=CHECK4 %s
7// RUN: llvm-objdump -d -triple=thumbv7a-none-linux-gnueabi -start-address=50405364 -stop-address=50405376 %t2 | FileCheck -check-prefix=CHECK5 %s
8// REQUIRES: arm
9 .syntax unified
10 .balign 0x1000
11 .thumb
12 .text
13 .globl _start
14 .type _start, %function
15_start:
16 bx lr
17 .space 0x1000
18// CHECK1: Disassembly of section .text:
19// CHECK1-NEXT: _start:
20// CHECK1-NEXT: 11000: 70 47 bx lr
21// CHECK1-NEXT: 11002: 00 00 movs r0, r0
22
23// CHECK2: __Thumbv7ABSLongThunk__start:
24// CHECK2-NEXT: 12004: 41 f2 01 0c movw r12, #4097
25// CHECK2-NEXT: 12008: c0 f2 01 0c movt r12, #1
26// CHECK2-NEXT: 1200c: 60 47 bx r12
27
28// Gigantic section where we need a ThunkSection either side of it
29 .section .text.large1, "ax", %progbits
30 .balign 4
31 .space (16 * 1024 * 1024) - 16
32 bl _start
33 .space (16 * 1024 * 1024) - 4
34 bl _start
35 .space (16 * 1024 * 1024) - 16
36// CHECK3: 1012000: 00 f4 00 d0 bl #-16777216
37// CHECK4: 2012000: ff f3 f8 d7 bl #16777200
38
39// CHECK5: __Thumbv7ABSLongThunk__start:
40// CHECK5-NEXT: 3011ff4: 41 f2 01 0c movw r12, #4097
41// CHECK5-NEXT: 3011ff8: c0 f2 01 0c movt r12, #1
42// CHECK5-NEXT: 3011ffc: 60 47 bx r12
deps/lld/test/ELF/arm-thunk-linkerscript-dotexpr.s created+77
...@@ -0,0 +1,77 @@
1// RUN: llvm-mc -filetype=obj -triple=armv7a-none-linux-gnueabi %s -o %t
2// RUN: echo "SECTIONS { \
3// RUN: . = SIZEOF_HEADERS; \
4// RUN: .text_low : { *(.text_low) *(.text_low2) . = . + 0x2000000 ; *(.text_high) *(.text_high2) } \
5// RUN: } " > %t.script
6// RUN: ld.lld --script %t.script %t -o %t2 2>&1
7// RUN: llvm-objdump -d %t2 -start-address=148 -stop-address=188 -triple=thumbv7a-linux-gnueabihf | FileCheck -check-prefix=CHECK1 %s
8// RUN: llvm-objdump -d %t2 -start-address=33554620 -stop-address=33554654 -triple=thumbv7a-linux-gnueabihf | FileCheck -check-prefix=CHECK2 %s
9// REQUIRES: arm
10// Test that range extension thunks can handle location expressions within
11// a Section Description
12 .syntax unified
13 .section .text_low, "ax", %progbits
14 .thumb
15 .globl _start
16_start: bx lr
17 .globl low_target
18 .type low_target, %function
19low_target:
20 bl high_target
21 bl high_target2
22
23 .section .text_low2, "ax", %progbits
24 .thumb
25 .globl low_target2
26 .type low_target2, %function
27low_target2:
28 bl high_target
29 bl high_target2
30// CHECK1: Disassembly of section .text_low:
31// CHECK1-NEXT: _start:
32// CHECK1-NEXT: 94: 70 47 bx lr
33// CHECK1: low_target:
34// CHECK1-NEXT: 96: 00 f0 03 f8 bl #6
35// CHECK1-NEXT: 9a: 00 f0 06 f8 bl #12
36// CHECK1: __Thumbv7ABSLongThunk_high_target:
37// CHECK1-NEXT: a0: 40 f2 bd 0c movw r12, #189
38// CHECK1-NEXT: a4: c0 f2 00 2c movt r12, #512
39// CHECK1-NEXT: a8: 60 47 bx r12
40// CHECK1: __Thumbv7ABSLongThunk_high_target2:
41// CHECK1-NEXT: aa: 40 f2 d9 0c movw r12, #217
42// CHECK1-NEXT: ae: c0 f2 00 2c movt r12, #512
43// CHECK1-NEXT: b2: 60 47 bx r12
44// CHECK1: low_target2:
45// CHECK1-NEXT: b4: ff f7 f4 ff bl #-24
46// CHECK1-NEXT: b8: ff f7 f7 ff bl #-18
47
48 .section .text_high, "ax", %progbits
49 .thumb
50 .globl high_target
51 .type high_target, %function
52high_target:
53 bl low_target
54 bl low_target2
55
56 .section .text_high2, "ax", %progbits
57 .thumb
58 .globl high_target2
59 .type high_target2, %function
60high_target2:
61 bl low_target
62 bl low_target2
63
64// CHECK2: high_target:
65// CHECK2-NEXT: 20000bc: 00 f0 02 f8 bl #4
66// CHECK2-NEXT: 20000c0: 00 f0 05 f8 bl #10
67// CHECK2: __Thumbv7ABSLongThunk_low_target:
68// CHECK2-NEXT: 20000c4: 40 f2 97 0c movw r12, #151
69// CHECK2-NEXT: 20000c8: c0 f2 00 0c movt r12, #0
70// CHECK2-NEXT: 20000cc: 60 47 bx r12
71// CHECK2: __Thumbv7ABSLongThunk_low_target2:
72// CHECK2-NEXT: 20000ce: 40 f2 b5 0c movw r12, #181
73// CHECK2-NEXT: 20000d2: c0 f2 00 0c movt r12, #0
74// CHECK2-NEXT: 20000d6: 60 47 bx r12
75// CHECK2: high_target2:
76// CHECK2-NEXT: 20000d8: ff f7 f4 ff bl #-24
77// CHECK2-NEXT: 20000dc: ff f7 f7 ff bl #-18
deps/lld/test/ELF/arm-thunk-linkerscript-large.s created+176
...@@ -0,0 +1,176 @@
1// REQUIRES: arm
2// RUN: llvm-mc -filetype=obj -triple=thumbv7a-none-linux-gnueabi %s -o %t
3// RUN: echo "SECTIONS { \
4// RUN: .text 0x100000 : { *(.text) } \
5// RUN: .textl : { *(.text_l0*) *(.text_l1*) *(.text_l2*) *(.text_l3*) } \
6// RUN: .texth : { *(.text_h0*) *(.text_h1*) *(.text_h2*) *(.text_h3*) } \
7// RUN: }" > %t.script
8// RUN: ld.lld --script %t.script %t -o %t2 2>&1
9// The output file is large, most of it zeroes. We dissassemble only the
10// parts we need to speed up the test and avoid a large output file
11// RUN: llvm-objdump -d %t2 -start-address=1048576 -stop-address=1048594 -triple=thumbv7a-linux-gnueabihf | FileCheck --check-prefix=CHECK1 %s
12// RUN: llvm-objdump -d %t2 -start-address=2097152 -stop-address=2097160 -triple=thumbv7a-linux-gnueabihf | FileCheck --check-prefix=CHECK2 %s
13// RUN: llvm-objdump -d %t2 -start-address=11534340 -stop-address=11534350 -triple=thumbv7a-linux-gnueabihf | FileCheck --check-prefix=CHECK3 %s
14// RUN: llvm-objdump -d %t2 -start-address=34603008 -stop-address=34603034 -triple=thumbv7a-linux-gnueabihf | FileCheck --check-prefix=CHECK4 %s
15// RUN: llvm-objdump -d %t2 -start-address=35651584 -stop-address=35651598 -triple=thumbv7a-linux-gnueabihf | FileCheck --check-prefix=CHECK5 %s
16// RUN: llvm-objdump -d %t2 -start-address=68157440 -stop-address=68157472 -triple=thumbv7a-linux-gnueabihf | FileCheck --check-prefix=CHECK6 %s
17
18// Test the range extensions in a linker script where there are several
19// OutputSections requiring range extension Thunks. We should be able to reuse
20// Thunks between OutputSections but our placement of new Thunks is done on a
21// per OutputSection basis
22 .syntax unified
23
24// Define a function that we can match with .text_l* aligned on a megabyte // boundary
25 .macro FUNCTIONL suff
26 .section .text_l\suff\(), "ax", %progbits
27 .thumb
28 .balign 0x100000
29 .globl tfuncl\suff\()
30 .type tfuncl\suff\(), %function
31tfuncl\suff\():
32 bx lr
33 .endm
34
35// Define a function that we can match with .text_h* aligned on a megabyte
36// boundary
37 .macro FUNCTIONH suff
38 .section .text_h\suff\(), "ax", %progbits
39 .thumb
40 .balign 0x100000
41 .globl tfunch\suff\()
42 .type tfunch\suff\(), %function
43tfunch\suff\():
44 bx lr
45 .endm
46
47 .section .text, "ax", %progbits
48 .thumb
49 .globl _start
50_start:
51 bl tfuncl00
52 // Expect a range extension thunk in .text OutputSection
53 bl tfunch31
54// CHECK1: Disassembly of section .text:
55// CHECK1-NEXT: _start:
56// CHECK1-NEXT: 100000: ff f0 fe ff bl #1048572
57// CHECK1-NEXT: 100004: 00 f0 00 f8 bl #0
58// CHECK1: __Thumbv7ABSLongThunk_tfunch31:
59// CHECK1-NEXT: 100008: 40 f2 01 0c movw r12, #1
60// CHECK1-NEXT: 10000c: c0 f2 10 4c movt r12, #1040
61// CHECK1-NEXT: 100010: 60 47 bx r12
62 FUNCTIONL 00
63 // Create a range extension thunk in .textl
64 bl tfuncl24
65 // We can reuse existing thunk in .text
66 bl tfunch31
67// CHECK2: Disassembly of section .textl:
68// CHECK2-NEXT: tfuncl00:
69// CHECK2-NEXT: 200000: 70 47 bx lr
70// CHECK2-NEXT: 200002: ff f0 ff df bl #9437182
71// CHECK2-NEXT: 200006: ff f6 ff ff bl #-1048578
72 FUNCTIONL 01
73 FUNCTIONL 02
74 FUNCTIONL 03
75 FUNCTIONL 04
76 FUNCTIONL 05
77 FUNCTIONL 06
78 FUNCTIONL 07
79 FUNCTIONL 08
80 FUNCTIONL 09
81// CHECK3: __Thumbv7ABSLongThunk_tfuncl24:
82// CHECK3-NEXT: b00004: 40 f2 01 0c movw r12, #1
83// CHECK3-NEXT: b00008: c0 f2 a0 1c movt r12, #416
84// CHECK3-NEXT: b0000c: 60 47 bx r12
85 FUNCTIONL 10
86 FUNCTIONL 11
87 FUNCTIONL 12
88 FUNCTIONL 13
89 FUNCTIONL 14
90 FUNCTIONL 15
91 FUNCTIONL 16
92 FUNCTIONL 17
93 FUNCTIONL 18
94 FUNCTIONL 19
95 FUNCTIONL 20
96 FUNCTIONL 21
97 FUNCTIONL 22
98 FUNCTIONL 23
99 FUNCTIONL 24
100 FUNCTIONL 25
101 FUNCTIONL 26
102 FUNCTIONL 27
103 FUNCTIONL 28
104 FUNCTIONL 29
105 FUNCTIONL 30
106 FUNCTIONL 31
107 // Create range extension thunks in .textl
108 bl tfuncl00
109 bl tfuncl24
110 // Shouldn't need a thunk
111 bl tfunch00
112// CHECK4: 2100002: 00 f0 05 f8 bl #10
113// CHECK4-NEXT: 2100006: ff f4 fb f7 bl #-7340042
114// CHECK4-NEXT: 210000a: ff f0 f9 ff bl #1048562
115// CHECK4: __Thumbv7ABSLongThunk_tfuncl00:
116// CHECK4-NEXT: 2100010: 40 f2 01 0c movw r12, #1
117// CHECK4-NEXT: 2100014: c0 f2 20 0c movt r12, #32
118// CHECK4-NEXT: 2100018: 60 47 bx r12
119 FUNCTIONH 00
120 // Can reuse existing thunks in .textl
121 bl tfuncl00
122 bl tfuncl24
123 // Shouldn't need a thunk
124 bl tfuncl31
125// CHECK5: Disassembly of section .texth:
126// CHECK5-NEXT: tfunch00:
127// CHECK5-NEXT: 2200000: 70 47 bx lr
128// CHECK5-NEXT: 2200002: 00 f7 05 f8 bl #-1048566
129// CHECK5-NEXT: 2200006: ff f7 fb df bl #-8388618
130// CHECK5-NEXT: 220000a: ff f6 f9 ff bl #-1048590
131 FUNCTIONH 01
132 FUNCTIONH 02
133 FUNCTIONH 03
134 FUNCTIONH 04
135 FUNCTIONH 05
136 FUNCTIONH 06
137 FUNCTIONH 07
138 FUNCTIONH 08
139 FUNCTIONH 09
140 FUNCTIONH 10
141 FUNCTIONH 11
142 FUNCTIONH 12
143 FUNCTIONH 13
144 FUNCTIONH 14
145 FUNCTIONH 15
146 FUNCTIONH 16
147 FUNCTIONH 17
148 FUNCTIONH 18
149 FUNCTIONH 19
150 FUNCTIONH 20
151 FUNCTIONH 21
152 FUNCTIONH 22
153 FUNCTIONH 23
154 FUNCTIONH 24
155 FUNCTIONH 25
156 FUNCTIONH 26
157 FUNCTIONH 27
158 FUNCTIONH 28
159 FUNCTIONH 29
160 FUNCTIONH 30
161 FUNCTIONH 31
162// expect Thunks in .texth
163 bl tfuncl00
164 bl tfunch00
165// CHECK6: tfunch31:
166// CHECK6-NEXT: 4100000: 70 47 bx lr
167// CHECK6-NEXT: 4100002: 00 f0 03 f8 bl #6
168// CHECK6-NEXT: 4100006: 00 f0 06 f8 bl #12
169// CHECK6: __Thumbv7ABSLongThunk_tfuncl00:
170// CHECK6-NEXT: 410000c: 40 f2 01 0c movw r12, #1
171// CHECK6-NEXT: 4100010: c0 f2 20 0c movt r12, #32
172// CHECK6-NEXT: 4100014: 60 47 bx r12
173// CHECK6: __Thumbv7ABSLongThunk_tfunch00:
174// CHECK6-NEXT: 4100016: 40 f2 01 0c movw r12, #1
175// CHECK6-NEXT: 410001a: c0 f2 20 2c movt r12, #544
176// CHECK6-NEXT: 410001e: 60 47 bx r12
deps/lld/test/ELF/arm-thunk-linkerscript-orphan.s created+63
...@@ -0,0 +1,63 @@
1// REQUIRES: arm
2// RUN: llvm-mc -filetype=obj -triple=thumbv7a-none-linux-gnueabi %s -o %t
3// RUN: echo "SECTIONS { \
4// RUN: .text_low 0x100000 : { *(.text_low) } \
5// RUN: .text_high 0x2000000 : { *(.text_high) } \
6// RUN: .data : { *(.data) } \
7// RUN: }" > %t.script
8// RUN: ld.lld --script %t.script %t -o %t2 2>&1
9// RUN: llvm-objdump -d -triple=thumbv7a-none-linux-gnueabi %t2 | FileCheck %s
10 .syntax unified
11 .section .text_low, "ax", %progbits
12 .thumb
13 .globl _start
14_start: bx lr
15 .globl low_target
16 .type low_target, %function
17low_target:
18 bl high_target
19 bl orphan_target
20// CHECK: Disassembly of section .text_low:
21// CHECK-NEXT: _start:
22// CHECK-NEXT: 100000: 70 47 bx lr
23// CHECK: low_target:
24// CHECK-NEXT: 100002: 00 f0 03 f8 bl #6
25// CHECK-NEXT: 100006: 00 f0 06 f8 bl #12
26// CHECK: __Thumbv7ABSLongThunk_high_target:
27// CHECK-NEXT: 10000c: 40 f2 01 0c movw r12, #1
28// CHECK-NEXT: 100010: c0 f2 00 2c movt r12, #512
29// CHECK-NEXT: 100014: 60 47 bx r12
30// CHECK: __Thumbv7ABSLongThunk_orphan_target:
31// CHECK-NEXT: 100016: 40 f2 15 0c movw r12, #21
32// CHECK-NEXT: 10001a: c0 f2 00 2c movt r12, #512
33// CHECK-NEXT: 10001e: 60 47 bx r12
34 .section .text_high, "ax", %progbits
35 .thumb
36 .globl high_target
37 .type high_target, %function
38high_target:
39 bl low_target
40 bl orphan_target
41// CHECK: Disassembly of section .text_high:
42// CHECK-NEXT: high_target:
43// CHECK-NEXT: 2000000: 00 f0 02 f8 bl #4
44// CHECK-NEXT: 2000004: 00 f0 06 f8 bl #12
45// CHECK: __Thumbv7ABSLongThunk_low_target:
46// CHECK-NEXT: 2000008: 40 f2 03 0c movw r12, #3
47// CHECK-NEXT: 200000c: c0 f2 10 0c movt r12, #16
48// CHECK-NEXT: 2000010: 60 47 bx r12
49
50 .section orphan, "ax", %progbits
51 .thumb
52 .globl orphan_target
53 .type orphan_target, %function
54orphan_target:
55 bl low_target
56 bl high_target
57// CHECK: Disassembly of section orphan:
58// CHECK-NEXT: orphan_target:
59// CHECK-NEXT: 2000014: ff f7 f8 ff bl #-16
60// CHECK-NEXT: 2000018: ff f7 f2 ff bl #-28
61
62 .data
63 .word 10
deps/lld/test/ELF/arm-thunk-linkerscript-sort.s created+71
...@@ -0,0 +1,71 @@
1// REQUIRES: arm
2// RUN: llvm-mc -filetype=obj -triple=thumbv7a-none-linux-gnueabi %s -o %t
3// RUN: echo "SECTIONS { \
4// RUN: .text 0x100000 : { *(SORT_BY_NAME(.text.*)) } \
5// RUN: }" > %t.script
6// RUN: ld.lld --script %t.script %t -o %t2 2>&1
7// RUN: llvm-objdump -d %t2 -start-address=1048576 -stop-address=1048584 -triple=thumbv7a-linux-gnueabihf | FileCheck -check-prefix=CHECK1 %s
8// RUN: llvm-objdump -d %t2 -start-address=16777220 -stop-address=16777230 -triple=thumbv7a-linux-gnueabihf | FileCheck -check-prefix=CHECK2 %s
9
10 .syntax unified
11
12// Test that linkerscript sorting does not apply to Thunks, we expect that the
13// sort will reverse the order of sections presented here.
14
15// Define a function aligned on a megabyte boundary
16 .macro FUNCTION suff
17 .section .text.\suff\(), "ax", %progbits
18 .thumb
19 .balign 0x100000
20 .globl tfunc\suff\()
21 .type tfunc\suff\(), %function
22tfunc\suff\():
23 bx lr
24 .endm
25
26 FUNCTION 31
27 FUNCTION 30
28 FUNCTION 29
29 FUNCTION 28
30 FUNCTION 27
31 FUNCTION 26
32 FUNCTION 25
33 FUNCTION 24
34 FUNCTION 23
35 FUNCTION 22
36 FUNCTION 21
37 FUNCTION 20
38 FUNCTION 19
39 FUNCTION 18
40 FUNCTION 17
41 FUNCTION 16
42 FUNCTION 15
43// CHECK2: __Thumbv7ABSLongThunk_tfunc31:
44// CHECK2-NEXT: 1000004: 40 f2 01 0c movw r12, #1
45// CHECK2-NEXT: 1000008: c0 f2 00 2c movt r12, #512
46// CHECK2-NEXT: 100000c: 60 47 bx r12
47 FUNCTION 14
48 FUNCTION 13
49 FUNCTION 12
50 FUNCTION 11
51 FUNCTION 10
52 FUNCTION 09
53 FUNCTION 08
54 FUNCTION 07
55 FUNCTION 06
56 FUNCTION 05
57 FUNCTION 04
58 FUNCTION 03
59 FUNCTION 02
60 FUNCTION 01
61 .section .text.00, "ax", %progbits
62 .thumb
63 .globl _start
64_start:
65// Expect no range extension needed for tfunc01 and an extension needed for
66// tfunc31
67 bl tfunc01
68 bl tfunc31
69// CHECK1: _start:
70// CHECK1-NEXT: 100000: ff f0 fe ff bl #1048572
71// CHECK1-NEXT: 100004: ff f2 fe d7 bl #15728636
deps/lld/test/ELF/arm-thunk-linkerscript.s created+78
...@@ -0,0 +1,78 @@
1// RUN: llvm-mc -filetype=obj -triple=armv7a-none-linux-gnueabi %s -o %t
2// RUN: echo "SECTIONS { \
3// RUN: . = SIZEOF_HEADERS; \
4// RUN: .text_low : { *(.text_low) *(.text_low2) } \
5// RUN: .text_high 0x2000000 : { *(.text_high) *(.text_high2) } \
6// RUN: } " > %t.script
7// RUN: ld.lld --script %t.script %t -o %t2 2>&1
8// RUN: llvm-objdump -d -triple=thumbv7a-none-linux-gnueabi %t2 | FileCheck %s
9// REQUIRES: arm
10// Simple test that we can support range extension thunks with linker scripts
11 .syntax unified
12 .section .text_low, "ax", %progbits
13 .thumb
14 .globl _start
15_start: bx lr
16 .globl low_target
17 .type low_target, %function
18low_target:
19 bl high_target
20 bl high_target2
21
22 .section .text_low2, "ax", %progbits
23 .thumb
24 .globl low_target2
25 .type low_target2, %function
26low_target2:
27 bl high_target
28 bl high_target2
29
30// CHECK: Disassembly of section .text_low:
31// CHECK-NEXT: _start:
32// CHECK-NEXT: 94: 70 47 bx lr
33// CHECK: low_target:
34// CHECK-NEXT: 96: 00 f0 03 f8 bl #6
35// CHECK-NEXT: 9a: 00 f0 06 f8 bl #12
36// CHECK: __Thumbv7ABSLongThunk_high_target:
37// CHECK-NEXT: a0: 40 f2 01 0c movw r12, #1
38// CHECK-NEXT: a4: c0 f2 00 2c movt r12, #512
39// CHECK-NEXT: a8: 60 47 bx r12
40// CHECK: __Thumbv7ABSLongThunk_high_target2:
41// CHECK-NEXT: aa: 40 f2 1d 0c movw r12, #29
42// CHECK-NEXT: ae: c0 f2 00 2c movt r12, #512
43// CHECK-NEXT: b2: 60 47 bx r12
44// CHECK: low_target2:
45// CHECK-NEXT: b4: ff f7 f4 ff bl #-24
46// CHECK-NEXT: b8: ff f7 f7 ff bl #-18
47
48 .section .text_high, "ax", %progbits
49 .thumb
50 .globl high_target
51 .type high_target, %function
52high_target:
53 bl low_target
54 bl low_target2
55
56 .section .text_high2, "ax", %progbits
57 .thumb
58 .globl high_target2
59 .type high_target2, %function
60high_target2:
61 bl low_target
62 bl low_target2
63
64// CHECK: Disassembly of section .text_high:
65// CHECK-NEXT: high_target:
66// CHECK-NEXT: 2000000: 00 f0 02 f8 bl #4
67// CHECK-NEXT: 2000004: 00 f0 05 f8 bl #10
68// CHECK: __Thumbv7ABSLongThunk_low_target:
69// CHECK-NEXT: 2000008: 40 f2 97 0c movw r12, #151
70// CHECK-NEXT: 200000c: c0 f2 00 0c movt r12, #0
71// CHECK-NEXT: 2000010: 60 47 bx r12
72// CHECK: __Thumbv7ABSLongThunk_low_target2:
73// CHECK-NEXT: 2000012: 40 f2 b5 0c movw r12, #181
74// CHECK-NEXT: 2000016: c0 f2 00 0c movt r12, #0
75// CHECK-NEXT: 200001a: 60 47 bx r12
76// CHECK: high_target2:
77// CHECK-NEXT: 200001c: ff f7 f4 ff bl #-24
78// CHECK-NEXT: 2000020: ff f7 f7 ff bl #-18
deps/lld/test/ELF/arm-thunk-multipass.s created+96
...@@ -0,0 +1,96 @@
1// REQUIRES: arm
2// RUN: llvm-mc -filetype=obj -triple=armv7a-none-linux-gnueabi %s -o %t
3// RUN: ld.lld %t -o %t2 2>&1
4// The output file is large, most of it zeroes. We dissassemble only the
5// parts we need to speed up the test and avoid a large output file
6// RUN: llvm-objdump -d %t2 -start-address=1048578 -stop-address=1048586 -triple=thumbv7a-linux-gnueabihf | FileCheck -check-prefix=CHECK1 %s
7// RUN: llvm-objdump -d %t2 -start-address=16777224 -stop-address=16777254 -triple=thumbv7a-linux-gnueabihf | FileCheck -check-prefix=CHECK2 %s
8// RUN: llvm-objdump -d %t2 -start-address=17825818 -stop-address=17825828 -triple=thumbv7a-linux-gnueabihf | FileCheck -check-prefix=CHECK3 %s
9// In this test case a branch that is in range and does not need its range
10// extended can be pushed out of range by another Thunk, necessitating another
11// pass
12
13 .macro FUNCTION suff
14 .section .text.\suff\(), "ax", %progbits
15 .thumb
16 .balign 0x100000
17 .globl tfunc\suff\()
18 .type tfunc\suff\(), %function
19tfunc\suff\():
20 bx lr
21 .endm
22
23 FUNCTION 00
24 .globl _start
25_start:
26 bl target
27 b.w arm_target
28// arm_target is in range but needs an interworking thunk
29// CHECK1: _start:
30// CHECK1-NEXT: 100002: 00 f3 06 d0 bl #15728652
31// CHECK1-NEXT: 100006: ff f2 ff 97 b.w #15728638 <__Thumbv7ABSLongThunk_arm_target>
32 nop
33 nop
34 nop
35 .globl target2
36 .type target2, %function
37 nop
38
39target2:
40 FUNCTION 01
41 FUNCTION 02
42 FUNCTION 03
43 FUNCTION 04
44 FUNCTION 05
45 FUNCTION 06
46 FUNCTION 07
47 FUNCTION 08
48 FUNCTION 09
49 FUNCTION 10
50 FUNCTION 11
51 FUNCTION 12
52 FUNCTION 13
53 FUNCTION 14
54 FUNCTION 15
55
56 .section .text.16, "ax", %progbits
57 .arm
58 .globl arm_target
59 .type arm_target, %function
60arm_target:
61 bx lr
62// CHECK2: __Thumbv7ABSLongThunk_arm_target:
63// CHECK2-NEXT: 1000008: 40 f2 02 0c movw r12, #2
64// CHECK2-NEXT: 100000c: c0 f2 00 1c movt r12, #256
65// CHECK2-NEXT: 1000010: 60 47 bx r12
66// CHECK2: __Thumbv7ABSLongThunk_target:
67// CHECK2-NEXT: 1000012: 40 f2 1b 0c movw r12, #27
68// CHECK2-NEXT: 1000016: c0 f2 10 1c movt r12, #272
69// CHECK2-NEXT: 100001a: 60 47 bx r12
70// CHECK2: __Thumbv7ABSLongThunk_target2:
71// CHECK2-NEXT: 100001c: 40 f2 13 0c movw r12, #19
72// CHECK2-NEXT: 1000020: c0 f2 10 0c movt r12, #16
73// CHECK2-NEXT: 1000024: 60 47 bx r12
74
75 .section .text.17, "ax", %progbits
76// Just enough space so that bl target is in range if no extension thunks are
77// generated.
78
79 .space 0x100000 - 12
80
81 .section .text.18, "ax", %progbits
82 .thumb
83 .globl target
84 .type target, %function
85// target is at maximum ARM branch range away from caller.
86target:
87// Similar case in the backwards direction
88 bl target2
89 nop
90 nop
91 bx lr
92// CHECK3: target:
93// CHECK3-NEXT: 110001a: ff f6 ff ff bl #-1048578
94// CHECK3-NEXT: 110001e: 00 bf nop
95// CHECK3-NEXT: 1100020: 00 bf nop
96// CHECK3-NEXT: 1100022: 70 47 bx lr
deps/lld/test/ELF/arm-thunk-re-add.s created+123
...@@ -0,0 +1,123 @@
1// REQUIRES: arm
2// RUN: llvm-mc -filetype=obj -triple=thumbv7a-none-linux-gnueabi %s -o %t
3// RUN: ld.lld %t --shared -o %t.so
4// The output file is large, most of it zeroes. We dissassemble only the
5// parts we need to speed up the test and avoid a large output file
6// RUN: llvm-objdump -d %t.so -start-address=16777220 -stop-address=16777244 -triple=thumbv7a-linux-gnueabihf | FileCheck -check-prefix=CHECK1 %s
7// RUN: llvm-objdump -d %t.so -start-address=17825800 -stop-address=17825826 -triple=thumbv7a-linux-gnueabihf | FileCheck -check-prefix=CHECK2 %s
8// RUN: llvm-objdump -d %t.so -start-address=17825824 -stop-address=17825892 -triple=armv7a-linux-gnueabihf | FileCheck -check-prefix=CHECK3 %s
9
10// A branch to a Thunk that we create on pass N, can drift out of range if
11// other Thunks are added in between. In this case we must create a new Thunk
12// for the branch that is in range. We also need to make sure that if the
13// destination of the Thunk is in the PLT the new Thunk also targets the PLT
14 .syntax unified
15 .thumb
16
17 .macro FUNCTION suff
18 .section .text.\suff\(), "ax", %progbits
19 .thumb
20 .balign 0x80000
21 .globl tfunc\suff\()
22 .type tfunc\suff\(), %function
23tfunc\suff\():
24 bx lr
25 .endm
26
27 .globl imported
28 .type imported, %function
29 .globl imported2
30 .type imported2, %function
31 .globl imported3
32 .type imported3, %function
33.globl imported4
34 .type imported4, %function
35 FUNCTION 00
36 FUNCTION 01
37 FUNCTION 02
38 FUNCTION 03
39 FUNCTION 04
40 FUNCTION 05
41 FUNCTION 06
42 FUNCTION 07
43 FUNCTION 08
44 FUNCTION 09
45 FUNCTION 10
46 FUNCTION 11
47 FUNCTION 12
48 FUNCTION 13
49 FUNCTION 14
50 FUNCTION 15
51 FUNCTION 16
52 FUNCTION 17
53 FUNCTION 18
54 FUNCTION 19
55 FUNCTION 20
56 FUNCTION 21
57 FUNCTION 22
58 FUNCTION 23
59 FUNCTION 24
60 FUNCTION 25
61 FUNCTION 26
62 FUNCTION 27
63 FUNCTION 28
64 FUNCTION 29
65 FUNCTION 30
66 FUNCTION 31
67// Precreated Thunk Pool goes here
68// CHECK1: __ThumbV7PILongThunk_imported:
69// CHECK1-NEXT: 1000004: 40 f2 30 0c movw r12, #48
70// CHECK1-NEXT: 1000008: c0 f2 10 0c movt r12, #16
71// CHECK1-NEXT: 100000c: fc 44 add r12, pc
72// CHECK1-NEXT: 100000e: 60 47 bx r12
73// CHECK1: __ThumbV7PILongThunk_imported2:
74// CHECK1-NEXT: 1000010: 40 f2 34 0c movw r12, #52
75// CHECK1-NEXT: 1000014: c0 f2 10 0c movt r12, #16
76// CHECK1-NEXT: 1000018: fc 44 add r12, pc
77// CHECK1-NEXT: 100001a: 60 47 bx r12
78
79 .section .text.32, "ax", %progbits
80 .space 0x80000
81 .section .text.33, "ax", %progbits
82 .space 0x80000 - 0x14
83 .section .text.34, "ax", %progbits
84 // Need a Thunk to the PLT entry, can use precreated ThunkSection
85 .globl callers
86 .type callers, %function
87callers:
88 b.w imported
89 beq.w imported
90 b.w imported2
91// CHECK2: __ThumbV7PILongThunk_imported:
92// CHECK2-NEXT: 1100008: 40 f2 2c 0c movw r12, #44
93// CHECK2-NEXT: 110000c: c0 f2 00 0c movt r12, #0
94// CHECK2-NEXT: 1100010: fc 44 add r12, pc
95// CHECK2-NEXT: 1100012: 60 47 bx r12
96// CHECK2: callers:
97// CHECK2-NEXT: 1100014: ff f6 f6 bf b.w #-1048596 <__ThumbV7PILongThunk_imported>
98// CHECK2-NEXT: 1100018: 3f f4 f6 af beq.w #-20 <__ThumbV7PILongThunk_imported>
99// CHECK2-NEXT: 110001c: ff f6 f8 bf b.w #-1048592 <__ThumbV7PILongThunk_imported2>
100
101// CHECK3: Disassembly of section .plt:
102// CHECK3-NEXT: $a:
103// CHECK3-NEXT: 1100020: 04 e0 2d e5 str lr, [sp, #-4]!
104// CHECK3-NEXT: 1100024: 00 e6 8f e2 add lr, pc, #0, #12
105// CHECK3-NEXT: 1100028: 00 ea 8e e2 add lr, lr, #0, #20
106// CHECK3-NEXT: 110002c: dc ff be e5 ldr pc, [lr, #4060]!
107// CHECK3: $d:
108// CHECK3-NEXT: 1100030: d4 d4 d4 d4 .word 0xd4d4d4d4
109// CHECK3-NEXT: 1100034: d4 d4 d4 d4 .word 0xd4d4d4d4
110// CHECK3-NEXT: 1100038: d4 d4 d4 d4 .word 0xd4d4d4d4
111// CHECK3-NEXT: 110003c: d4 d4 d4 d4 .word 0xd4d4d4d4
112// CHECK3: $a:
113// CHECK3-NEXT: 1100040: 00 c6 8f e2 add r12, pc, #0, #12
114// CHECK3-NEXT: 1100044: 00 ca 8c e2 add r12, r12, #0, #20
115// CHECK3-NEXT: 1100048: c4 ff bc e5 ldr pc, [r12, #4036]!
116// CHECK3: $d:
117// CHECK3-NEXT: 110004c: d4 d4 d4 d4 .word 0xd4d4d4d4
118// CHECK3: $a:
119// CHECK3-NEXT: 1100050: 00 c6 8f e2 add r12, pc, #0, #12
120// CHECK3-NEXT: 1100054: 00 ca 8c e2 add r12, r12, #0, #20
121// CHECK3-NEXT: 1100058: b8 ff bc e5 ldr pc, [r12, #4024]!
122// CHECK3: $d:
123// CHECK3-NEXT: 110005c: d4 d4 d4 d4 .word 0xd4d4d4d4
deps/lld/test/ELF/arm-thunk-toolargesection.s created+19
...@@ -0,0 +1,19 @@
1// RUN: llvm-mc -filetype=obj -triple=thumbv7a-none-linux-gnueabi %s -o %t
2// RUN: not ld.lld %t -o %t2 2>&1 | FileCheck %s
3// REQUIRES: arm
4 .syntax unified
5 .balign 0x1000
6 .thumb
7 .text
8 .globl _start
9 .type _start, %function
10_start:
11 bx lr
12
13 .section .text.large1, "ax", %progbits
14 .balign 4
15.space (17 * 1024 * 1024)
16 bl _start
17.space (17 * 1024 * 1024)
18
19// CHECK: error: InputSection too large for range extension thunk {{.*}}.text.large1
deps/lld/test/ELF/arm-tls-gd-nonpreemptible.s+1-1
...@@ -2,7 +2,7 @@...@@ -2,7 +2,7 @@
2// RUN: ld.lld %t -o %t22// RUN: ld.lld %t -o %t2
3// RUN: llvm-mc %s -o %t.o -filetype=obj -triple=armv7a-linux-gnueabi3// RUN: llvm-mc %s -o %t.o -filetype=obj -triple=armv7a-linux-gnueabi
4// RUN: llvm-objdump -s %t2 | FileCheck %s4// RUN: llvm-objdump -s %t2 | FileCheck %s
5// RUN: ld.lld %t --shared -o %t3.so5// RUN: ld.lld --hash-style=sysv %t --shared -o %t3.so
6// RUN: llvm-objdump -s %t3.so | FileCheck -check-prefix=CHECK-SHARED %s6// RUN: llvm-objdump -s %t3.so | FileCheck -check-prefix=CHECK-SHARED %s
7// REQUIRES: arm7// REQUIRES: arm
88
deps/lld/test/ELF/arm-tls-gd32.s+1-1
...@@ -1,5 +1,5 @@...@@ -1,5 +1,5 @@
1// RUN: llvm-mc %s -o %t.o -filetype=obj -triple=armv7a-linux-gnueabi1// RUN: llvm-mc %s -o %t.o -filetype=obj -triple=armv7a-linux-gnueabi
2// RUN: ld.lld %t.o -o %t.so -shared2// RUN: ld.lld --hash-style=sysv %t.o -o %t.so -shared
3// RUN: llvm-readobj -s -dyn-relocations %t.so | FileCheck --check-prefix=SEC %s3// RUN: llvm-readobj -s -dyn-relocations %t.so | FileCheck --check-prefix=SEC %s
4// RUN: llvm-objdump -d -triple=armv7a-linux-gnueabi %t.so | FileCheck %s4// RUN: llvm-objdump -d -triple=armv7a-linux-gnueabi %t.so | FileCheck %s
5// REQUIRES: arm5// REQUIRES: arm
deps/lld/test/ELF/arm-tls-ie32.s+1-1
...@@ -1,5 +1,5 @@...@@ -1,5 +1,5 @@
1// RUN: llvm-mc %s -o %t.o -filetype=obj -triple=armv7a-linux-gnueabi1// RUN: llvm-mc %s -o %t.o -filetype=obj -triple=armv7a-linux-gnueabi
2// RUN: ld.lld %t.o -o %t.so -shared2// RUN: ld.lld --hash-style=sysv %t.o -o %t.so -shared
3// RUN: llvm-readobj -s -dyn-relocations %t.so | FileCheck --check-prefix=SEC %s3// RUN: llvm-readobj -s -dyn-relocations %t.so | FileCheck --check-prefix=SEC %s
4// RUN: llvm-objdump -d -triple=armv7a-linux-gnueabi %t.so | FileCheck %s4// RUN: llvm-objdump -d -triple=armv7a-linux-gnueabi %t.so | FileCheck %s
5// REQUIRES: arm5// REQUIRES: arm
deps/lld/test/ELF/arm-tls-ldm32.s+1-1
...@@ -1,5 +1,5 @@...@@ -1,5 +1,5 @@
1// RUN: llvm-mc %s -o %t.o -filetype=obj -triple=armv7a-linux-gnueabi1// RUN: llvm-mc %s -o %t.o -filetype=obj -triple=armv7a-linux-gnueabi
2// RUN: ld.lld %t.o -o %t.so -shared2// RUN: ld.lld --hash-style=sysv %t.o -o %t.so -shared
3// RUN: llvm-readobj -s -dyn-relocations %t.so | FileCheck --check-prefix=SEC %s3// RUN: llvm-readobj -s -dyn-relocations %t.so | FileCheck --check-prefix=SEC %s
4// RUN: llvm-objdump -d -triple=armv7a-linux-gnueabi %t.so | FileCheck %s4// RUN: llvm-objdump -d -triple=armv7a-linux-gnueabi %t.so | FileCheck %s
5// REQUIRES: arm5// REQUIRES: arm
deps/lld/test/ELF/arm-tls-norelax-gd-ie.s+1-1
...@@ -1,7 +1,7 @@...@@ -1,7 +1,7 @@
1// RUN: llvm-mc -filetype=obj -triple=armv7a-none-linux-gnueabi %p/Inputs/arm-tls-get-addr.s -o %t11// RUN: llvm-mc -filetype=obj -triple=armv7a-none-linux-gnueabi %p/Inputs/arm-tls-get-addr.s -o %t1
2// RUN: ld.lld %t1 --shared -o %t1.so2// RUN: ld.lld %t1 --shared -o %t1.so
3// RUN: llvm-mc %s -o %t.o -filetype=obj -triple=armv7a-linux-gnueabi3// RUN: llvm-mc %s -o %t.o -filetype=obj -triple=armv7a-linux-gnueabi
4// RUN: ld.lld %t1.so %t.o -o %t4// RUN: ld.lld --hash-style=sysv %t1.so %t.o -o %t
5// RUN: llvm-readobj -s -dyn-relocations %t | FileCheck %s5// RUN: llvm-readobj -s -dyn-relocations %t | FileCheck %s
6// REQUIRES: arm6// REQUIRES: arm
77
deps/lld/test/ELF/arm-tls-norelax-gd-le.s+5-1
...@@ -1,7 +1,7 @@...@@ -1,7 +1,7 @@
1// RUN: llvm-mc -filetype=obj -triple=armv7a-none-linux-gnueabi %p/Inputs/arm-tls-get-addr.s -o %t11// RUN: llvm-mc -filetype=obj -triple=armv7a-none-linux-gnueabi %p/Inputs/arm-tls-get-addr.s -o %t1
2// RUN: ld.lld %t1 --shared -o %t1.so2// RUN: ld.lld %t1 --shared -o %t1.so
3// RUN: llvm-mc %s -o %t.o -filetype=obj -triple=armv7a-linux-gnueabi3// RUN: llvm-mc %s -o %t.o -filetype=obj -triple=armv7a-linux-gnueabi
4// RUN: ld.lld %t1.so %t.o -o %t4// RUN: ld.lld --hash-style=sysv %t1.so %t.o -o %t
5// RUN: llvm-objdump -s %t | FileCheck %s5// RUN: llvm-objdump -s %t | FileCheck %s
6// REQUIRES: arm6// REQUIRES: arm
77
...@@ -35,3 +35,7 @@ x:...@@ -35,3 +35,7 @@ x:
35// Module index is always 1 for executable35// Module index is always 1 for executable
36// CHECK-NEXT: 13060 01000000 0000000036// CHECK-NEXT: 13060 01000000 00000000
3737
38
39// Without any definition of __tls_get_addr we get an error
40// RUN: not ld.lld %t.o -o %t 2>&1 | FileCheck --check-prefix=ERR %s
41// ERR: error: undefined symbol: __tls_get_addr
deps/lld/test/ELF/arm-tls-norelax-ie-le.s+1-1
...@@ -1,7 +1,7 @@...@@ -1,7 +1,7 @@
1// RUN: llvm-mc -filetype=obj -triple=armv7a-none-linux-gnueabi %p/Inputs/arm-tls-get-addr.s -o %t11// RUN: llvm-mc -filetype=obj -triple=armv7a-none-linux-gnueabi %p/Inputs/arm-tls-get-addr.s -o %t1
2// RUN: ld.lld %t1 --shared -o %t1.so2// RUN: ld.lld %t1 --shared -o %t1.so
3// RUN: llvm-mc %s -o %t.o -filetype=obj -triple=armv7a-linux-gnueabi3// RUN: llvm-mc %s -o %t.o -filetype=obj -triple=armv7a-linux-gnueabi
4// RUN: ld.lld %t1.so %t.o -o %t4// RUN: ld.lld --hash-style=sysv %t1.so %t.o -o %t
5// RUN: llvm-objdump -s -triple=armv7a-linux-gnueabi %t | FileCheck %s5// RUN: llvm-objdump -s -triple=armv7a-linux-gnueabi %t | FileCheck %s
6// REQUIRES: arm6// REQUIRES: arm
77
deps/lld/test/ELF/arm-tls-norelax-ld-le.s+1-1
...@@ -1,7 +1,7 @@...@@ -1,7 +1,7 @@
1// RUN: llvm-mc -filetype=obj -triple=armv7a-none-linux-gnueabi %p/Inputs/arm-tls-get-addr.s -o %t11// RUN: llvm-mc -filetype=obj -triple=armv7a-none-linux-gnueabi %p/Inputs/arm-tls-get-addr.s -o %t1
2// RUN: ld.lld %t1 --shared -o %t1.so2// RUN: ld.lld %t1 --shared -o %t1.so
3// RUN: llvm-mc %s -o %t.o -filetype=obj -triple=armv7a-linux-gnueabi3// RUN: llvm-mc %s -o %t.o -filetype=obj -triple=armv7a-linux-gnueabi
4// RUN: ld.lld %t1.so %t.o -o %t4// RUN: ld.lld --hash-style=sysv %t1.so %t.o -o %t
5// RUN: llvm-objdump -s %t | FileCheck %s5// RUN: llvm-objdump -s %t | FileCheck %s
6// REQUIRES: arm6// REQUIRES: arm
77
deps/lld/test/ELF/arm-undefined-weak.s+1-1
...@@ -32,7 +32,7 @@ _start:...@@ -32,7 +32,7 @@ _start:
32// CHECK: 11000: {{.*}} b #-4 <_start+0x4>32// CHECK: 11000: {{.*}} b #-4 <_start+0x4>
33// CHECK-NEXT: 11004: {{.*}} bl #-4 <_start+0x8>33// CHECK-NEXT: 11004: {{.*}} bl #-4 <_start+0x8>
34// blx is transformed into bl so we don't change state34// blx is transformed into bl so we don't change state
35// CHECK-NEXT: 11008: {{.*}} bl #-4 <_start+0xC>35// CHECK-NEXT: 11008: {{.*}} bl #-4 <_start+0xc>
36// CHECK-NEXT: 1100c: {{.*}} movt r0, #036// CHECK-NEXT: 1100c: {{.*}} movt r0, #0
37// CHECK-NEXT: 11010: {{.*}} movw r0, #037// CHECK-NEXT: 11010: {{.*}} movw r0, #0
38// CHECK: 11014: {{.*}} .word 0x0000000038// CHECK: 11014: {{.*}} .word 0x00000000
deps/lld/test/ELF/as-needed.s+4
...@@ -15,6 +15,10 @@...@@ -15,6 +15,10 @@
15// RUN: ld.lld --as-needed %t.o %t2.so %t3.so %t4.so -o %t215// RUN: ld.lld --as-needed %t.o %t2.so %t3.so %t4.so -o %t2
16// RUN: llvm-readobj -dynamic-table %t2 | FileCheck -check-prefix=CHECK2 %s16// RUN: llvm-readobj -dynamic-table %t2 | FileCheck -check-prefix=CHECK2 %s
1717
18// Test with the .o last
19// RUN: ld.lld --as-needed %t2.so %t3.so %t4.so %t.o -o %t2
20// RUN: llvm-readobj -dynamic-table %t2 | FileCheck -check-prefix=CHECK2 %s
21
18// RUN: ld.lld --as-needed %t.o %t2.so --no-as-needed %t3.so %t4.so -o %t222// RUN: ld.lld --as-needed %t.o %t2.so --no-as-needed %t3.so %t4.so -o %t2
19// RUN: llvm-readobj -dynamic-table %t2 | FileCheck %s23// RUN: llvm-readobj -dynamic-table %t2 | FileCheck %s
2024
deps/lld/test/ELF/assignment-archive.s created+27
...@@ -0,0 +1,27 @@
1# REQUIRES: x86
2# RUN: llvm-mc -filetype=obj -triple=x86_64-pc-linux %s -o %ta.o
3# RUN: llvm-mc -filetype=obj -triple=x86_64-pc-linux -o %t.o < /dev/null
4# RUN: rm -f %tar.a
5# RUN: llvm-ar rcs %tar.a %ta.o
6
7# RUN: echo "SECTIONS { foo = 1; }" > %t1.script
8# RUN: ld.lld -o %t1.exe --script %t1.script %tar.a %t.o
9# RUN: llvm-readobj -symbols %t1.exe | FileCheck %s
10# CHECK-NOT: bar
11# CHECK: foo
12# CHECK-NOT: bar
13
14# RUN: echo "SECTIONS { zed = foo; }" > %t2.script
15# RUN: ld.lld -o %t2.exe --script %t2.script %tar.a %t.o
16# RUN: llvm-readobj -symbols %t2.exe | FileCheck %s --check-prefix=SYMS
17# SYMS: bar
18# SYMS: foo
19
20.text
21.globl foo
22foo:
23 nop
24
25.globl bar
26bar:
27 nop
deps/lld/test/ELF/avoid-empty-program-headers.s+3-3
...@@ -42,8 +42,8 @@ _start:...@@ -42,8 +42,8 @@ _start:
42// CHECK-NEXT: Offset: 0x100042// CHECK-NEXT: Offset: 0x1000
43// CHECK-NEXT: VirtualAddress: 0x20100043// CHECK-NEXT: VirtualAddress: 0x201000
44// CHECK-NEXT: PhysicalAddress: 0x20100044// CHECK-NEXT: PhysicalAddress: 0x201000
45// CHECK-NEXT: FileSize: 145// CHECK-NEXT: FileSize: 4096
46// CHECK-NEXT: MemSize: 146// CHECK-NEXT: MemSize: 4096
47// CHECK-NEXT: Flags [ (0x5)47// CHECK-NEXT: Flags [ (0x5)
48// CHECK-NEXT: PF_R (0x4)48// CHECK-NEXT: PF_R (0x4)
49// CHECK-NEXT: PF_X (0x1)49// CHECK-NEXT: PF_X (0x1)
...@@ -52,7 +52,7 @@ _start:...@@ -52,7 +52,7 @@ _start:
52// CHECK-NEXT: }52// CHECK-NEXT: }
53// CHECK-NEXT: ProgramHeader {53// CHECK-NEXT: ProgramHeader {
54// CHECK-NEXT: Type: PT_TLS (0x7)54// CHECK-NEXT: Type: PT_TLS (0x7)
55// CHECK-NEXT: Offset: 0x100155// CHECK-NEXT: Offset: 0x2000
56// CHECK-NEXT: VirtualAddress: 0x20100156// CHECK-NEXT: VirtualAddress: 0x201001
57// CHECK-NEXT: PhysicalAddress: 0x20100157// CHECK-NEXT: PhysicalAddress: 0x201001
58// CHECK-NEXT: FileSize: 058// CHECK-NEXT: FileSize: 0
deps/lld/test/ELF/basic-aarch64.s+8-8
...@@ -26,7 +26,7 @@ _start:...@@ -26,7 +26,7 @@ _start:
26# CHECK-NEXT: Version: 126# CHECK-NEXT: Version: 1
27# CHECK-NEXT: Entry: [[ENTRY:0x[0-9A-F]+]]27# CHECK-NEXT: Entry: [[ENTRY:0x[0-9A-F]+]]
28# CHECK-NEXT: ProgramHeaderOffset: 0x4028# CHECK-NEXT: ProgramHeaderOffset: 0x40
29# CHECK-NEXT: SectionHeaderOffset: 0x1009829# CHECK-NEXT: SectionHeaderOffset: 0x11088
30# CHECK-NEXT: Flags [ (0x0)30# CHECK-NEXT: Flags [ (0x0)
31# CHECK-NEXT: ]31# CHECK-NEXT: ]
32# CHECK-NEXT: HeaderSize: 6432# CHECK-NEXT: HeaderSize: 64
...@@ -76,12 +76,12 @@ _start:...@@ -76,12 +76,12 @@ _start:
76# CHECK-NEXT: SHF_STRINGS (0x20)76# CHECK-NEXT: SHF_STRINGS (0x20)
77# CHECK-NEXT: ]77# CHECK-NEXT: ]
78# CHECK-NEXT: Address: 0x078# CHECK-NEXT: Address: 0x0
79# CHECK-NEXT: Offset: 0x1000C79# CHECK-NEXT: Offset: 0x11000
80# CHECK-NEXT: Size: 880# CHECK-NEXT: Size: 8
81# CHECK-NEXT: Link: 081# CHECK-NEXT: Link: 0
82# CHECK-NEXT: Info: 082# CHECK-NEXT: Info: 0
83# CHECK-NEXT: AddressAlignment: 183# CHECK-NEXT: AddressAlignment: 1
84# CHECK-NEXT: EntrySize: 084# CHECK-NEXT: EntrySize: 1
85# CHECK-NEXT: }85# CHECK-NEXT: }
86# CHECK-NEXT: Section {86# CHECK-NEXT: Section {
87# CHECK-NEXT: Index: 387# CHECK-NEXT: Index: 3
...@@ -90,7 +90,7 @@ _start:...@@ -90,7 +90,7 @@ _start:
90# CHECK-NEXT: Flags [ (0x0)90# CHECK-NEXT: Flags [ (0x0)
91# CHECK-NEXT: ]91# CHECK-NEXT: ]
92# CHECK-NEXT: Address: 0x092# CHECK-NEXT: Address: 0x0
93# CHECK-NEXT: Offset: 0x1001893# CHECK-NEXT: Offset: 0x11008
94# CHECK-NEXT: Size: 7294# CHECK-NEXT: Size: 72
95# CHECK-NEXT: Link: 595# CHECK-NEXT: Link: 5
96# CHECK-NEXT: Info: 296# CHECK-NEXT: Info: 2
...@@ -104,7 +104,7 @@ _start:...@@ -104,7 +104,7 @@ _start:
104# CHECK-NEXT: Flags [ (0x0)104# CHECK-NEXT: Flags [ (0x0)
105# CHECK-NEXT: ]105# CHECK-NEXT: ]
106# CHECK-NEXT: Address: 0x0106# CHECK-NEXT: Address: 0x0
107# CHECK-NEXT: Offset: 0x10060107# CHECK-NEXT: Offset: 0x11050
108# CHECK-NEXT: Size: 42108# CHECK-NEXT: Size: 42
109# CHECK-NEXT: Link: 0109# CHECK-NEXT: Link: 0
110# CHECK-NEXT: Info: 0110# CHECK-NEXT: Info: 0
...@@ -118,7 +118,7 @@ _start:...@@ -118,7 +118,7 @@ _start:
118# CHECK-NEXT: Flags [ (0x0)118# CHECK-NEXT: Flags [ (0x0)
119# CHECK-NEXT: ]119# CHECK-NEXT: ]
120# CHECK-NEXT: Address: 0x0120# CHECK-NEXT: Address: 0x0
121# CHECK-NEXT: Offset: 0x1008A121# CHECK-NEXT: Offset: 0x1107A
122# CHECK-NEXT: Size: 13122# CHECK-NEXT: Size: 13
123# CHECK-NEXT: Link: 0123# CHECK-NEXT: Link: 0
124# CHECK-NEXT: Info: 0124# CHECK-NEXT: Info: 0
...@@ -185,8 +185,8 @@ _start:...@@ -185,8 +185,8 @@ _start:
185# CHECK-NEXT: Offset: 0x1000185# CHECK-NEXT: Offset: 0x1000
186# CHECK-NEXT: VirtualAddress: 0x20000186# CHECK-NEXT: VirtualAddress: 0x20000
187# CHECK-NEXT: PhysicalAddress: 0x20000187# CHECK-NEXT: PhysicalAddress: 0x20000
188# CHECK-NEXT: FileSize: 12188# CHECK-NEXT: FileSize: 4096
189# CHECK-NEXT: MemSize: 12189# CHECK-NEXT: MemSize: 4096
190# CHECK-NEXT: Flags [ (0x5)190# CHECK-NEXT: Flags [ (0x5)
191# CHECK-NEXT: PF_R (0x4)191# CHECK-NEXT: PF_R (0x4)
192# CHECK-NEXT: PF_X (0x1)192# CHECK-NEXT: PF_X (0x1)
deps/lld/test/ELF/basic-mips.s+2-2
...@@ -164,7 +164,7 @@ __start:...@@ -164,7 +164,7 @@ __start:
164# CHECK-NEXT: Link: 0164# CHECK-NEXT: Link: 0
165# CHECK-NEXT: Info: 0165# CHECK-NEXT: Info: 0
166# CHECK-NEXT: AddressAlignment: 1166# CHECK-NEXT: AddressAlignment: 1
167# CHECK-NEXT: EntrySize: 0167# CHECK-NEXT: EntrySize: 1
168# CHECK-NEXT: }168# CHECK-NEXT: }
169# CHECK-NEXT: Section {169# CHECK-NEXT: Section {
170# CHECK-NEXT: Index: 8170# CHECK-NEXT: Index: 8
...@@ -228,7 +228,7 @@ __start:...@@ -228,7 +228,7 @@ __start:
228# CHECK-NEXT: Other [ (0x2)228# CHECK-NEXT: Other [ (0x2)
229# CHECK-NEXT: STV_HIDDEN (0x2)229# CHECK-NEXT: STV_HIDDEN (0x2)
230# CHECK-NEXT: ]230# CHECK-NEXT: ]
231# CHECK-NEXT: Section: Absolute231# CHECK-NEXT: Section: .got
232# CHECK-NEXT: }232# CHECK-NEXT: }
233# CHECK-NEXT: Symbol {233# CHECK-NEXT: Symbol {
234# CHECK-NEXT: Name: __start234# CHECK-NEXT: Name: __start
deps/lld/test/ELF/basic-ppc.s+2-2
...@@ -1,5 +1,5 @@...@@ -1,5 +1,5 @@
1# RUN: llvm-mc -filetype=obj -triple=powerpc-unknown-freebsd %s -o %t1# RUN: llvm-mc -filetype=obj -triple=powerpc-unknown-freebsd %s -o %t
2# RUN: ld.lld -discard-all -shared %t -o %t22# RUN: ld.lld --hash-style=sysv -discard-all -shared %t -o %t2
3# RUN: llvm-readobj -file-headers -sections -section-data -program-headers %t2 | FileCheck %s3# RUN: llvm-readobj -file-headers -sections -section-data -program-headers %t2 | FileCheck %s
4# REQUIRES: ppc4# REQUIRES: ppc
55
...@@ -163,7 +163,7 @@...@@ -163,7 +163,7 @@
163// CHECK-NEXT: Link: 0163// CHECK-NEXT: Link: 0
164// CHECK-NEXT: Info: 0164// CHECK-NEXT: Info: 0
165// CHECK-NEXT: AddressAlignment: 1165// CHECK-NEXT: AddressAlignment: 1
166// CHECK-NEXT: EntrySize: 0166// CHECK-NEXT: EntrySize: 1
167// CHECK-NEXT: SectionData (167// CHECK-NEXT: SectionData (
168// CHECK-NEXT: 0000: 4C4C4420 312E3000 |LLD 1.0.|168// CHECK-NEXT: 0000: 4C4C4420 312E3000 |LLD 1.0.|
169// CHECK-NEXT: )169// CHECK-NEXT: )
deps/lld/test/ELF/basic-sparcv9.s+8-8
...@@ -26,7 +26,7 @@ _start:...@@ -26,7 +26,7 @@ _start:
26# CHECK-NEXT: Version: 126# CHECK-NEXT: Version: 1
27# CHECK-NEXT: Entry: [[ENTRY:0x[0-9A-F]+]]27# CHECK-NEXT: Entry: [[ENTRY:0x[0-9A-F]+]]
28# CHECK-NEXT: ProgramHeaderOffset: 0x4028# CHECK-NEXT: ProgramHeaderOffset: 0x40
29# CHECK-NEXT: SectionHeaderOffset: 0x10008029# CHECK-NEXT: SectionHeaderOffset: 0x102070
30# CHECK-NEXT: Flags [ (0x0)30# CHECK-NEXT: Flags [ (0x0)
31# CHECK-NEXT: ]31# CHECK-NEXT: ]
32# CHECK-NEXT: HeaderSize: 6432# CHECK-NEXT: HeaderSize: 64
...@@ -76,12 +76,12 @@ _start:...@@ -76,12 +76,12 @@ _start:
76# CHECK-NEXT: SHF_STRINGS (0x20)76# CHECK-NEXT: SHF_STRINGS (0x20)
77# CHECK-NEXT: ]77# CHECK-NEXT: ]
78# CHECK-NEXT: Address: 0x078# CHECK-NEXT: Address: 0x0
79# CHECK-NEXT: Offset: 0x10000C79# CHECK-NEXT: Offset: 0x102000
80# CHECK-NEXT: Size: 880# CHECK-NEXT: Size: 8
81# CHECK-NEXT: Link: 081# CHECK-NEXT: Link: 0
82# CHECK-NEXT: Info: 082# CHECK-NEXT: Info: 0
83# CHECK-NEXT: AddressAlignment: 183# CHECK-NEXT: AddressAlignment: 1
84# CHECK-NEXT: EntrySize: 084# CHECK-NEXT: EntrySize: 1
85# CHECK-NEXT: }85# CHECK-NEXT: }
86# CHECK-NEXT: Section {86# CHECK-NEXT: Section {
87# CHECK-NEXT: Index: 387# CHECK-NEXT: Index: 3
...@@ -90,7 +90,7 @@ _start:...@@ -90,7 +90,7 @@ _start:
90# CHECK-NEXT: Flags [ (0x0)90# CHECK-NEXT: Flags [ (0x0)
91# CHECK-NEXT: ]91# CHECK-NEXT: ]
92# CHECK-NEXT: Address: 0x092# CHECK-NEXT: Address: 0x0
93# CHECK-NEXT: Offset: 0x10001893# CHECK-NEXT: Offset: 0x102008
94# CHECK-NEXT: Size: 4894# CHECK-NEXT: Size: 48
95# CHECK-NEXT: Link: 595# CHECK-NEXT: Link: 5
96# CHECK-NEXT: Info: 196# CHECK-NEXT: Info: 1
...@@ -104,7 +104,7 @@ _start:...@@ -104,7 +104,7 @@ _start:
104# CHECK-NEXT: Flags [ (0x0)104# CHECK-NEXT: Flags [ (0x0)
105# CHECK-NEXT: ]105# CHECK-NEXT: ]
106# CHECK-NEXT: Address: 0x0106# CHECK-NEXT: Address: 0x0
107# CHECK-NEXT: Offset: 0x100048107# CHECK-NEXT: Offset: 0x102038
108# CHECK-NEXT: Size: 42108# CHECK-NEXT: Size: 42
109# CHECK-NEXT: Link: 0109# CHECK-NEXT: Link: 0
110# CHECK-NEXT: Info: 0110# CHECK-NEXT: Info: 0
...@@ -118,7 +118,7 @@ _start:...@@ -118,7 +118,7 @@ _start:
118# CHECK-NEXT: Flags [ (0x0)118# CHECK-NEXT: Flags [ (0x0)
119# CHECK-NEXT: ]119# CHECK-NEXT: ]
120# CHECK-NEXT: Address: 0x0120# CHECK-NEXT: Address: 0x0
121# CHECK-NEXT: Offset: 0x100072121# CHECK-NEXT: Offset: 0x102062
122# CHECK-NEXT: Size: 8122# CHECK-NEXT: Size: 8
123# CHECK-NEXT: Link: 0123# CHECK-NEXT: Link: 0
124# CHECK-NEXT: Info: 0124# CHECK-NEXT: Info: 0
...@@ -176,8 +176,8 @@ _start:...@@ -176,8 +176,8 @@ _start:
176# CHECK-NEXT: Offset: 0x100000176# CHECK-NEXT: Offset: 0x100000
177# CHECK-NEXT: VirtualAddress: 0x200000177# CHECK-NEXT: VirtualAddress: 0x200000
178# CHECK-NEXT: PhysicalAddress: 0x200000178# CHECK-NEXT: PhysicalAddress: 0x200000
179# CHECK-NEXT: FileSize: 12179# CHECK-NEXT: FileSize: 8192
180# CHECK-NEXT: MemSize: 12180# CHECK-NEXT: MemSize: 8192
181# CHECK-NEXT: Flags [ (0x5)181# CHECK-NEXT: Flags [ (0x5)
182# CHECK-NEXT: PF_R (0x4)182# CHECK-NEXT: PF_R (0x4)
183# CHECK-NEXT: PF_X (0x1)183# CHECK-NEXT: PF_X (0x1)
deps/lld/test/ELF/basic.s+10-8
...@@ -28,7 +28,7 @@ _start:...@@ -28,7 +28,7 @@ _start:
28# CHECK-NEXT: Version: 128# CHECK-NEXT: Version: 1
29# CHECK-NEXT: Entry: [[ENTRY:0x[0-9A-F]+]]29# CHECK-NEXT: Entry: [[ENTRY:0x[0-9A-F]+]]
30# CHECK-NEXT: ProgramHeaderOffset: 0x4030# CHECK-NEXT: ProgramHeaderOffset: 0x40
31# CHECK-NEXT: SectionHeaderOffset: 0x108031# CHECK-NEXT: SectionHeaderOffset: 0x2070
32# CHECK-NEXT: Flags [ (0x0)32# CHECK-NEXT: Flags [ (0x0)
33# CHECK-NEXT: ]33# CHECK-NEXT: ]
34# CHECK-NEXT: HeaderSize: 6434# CHECK-NEXT: HeaderSize: 64
...@@ -78,12 +78,12 @@ _start:...@@ -78,12 +78,12 @@ _start:
78# CHECK-NEXT: SHF_STRINGS (0x20)78# CHECK-NEXT: SHF_STRINGS (0x20)
79# CHECK-NEXT: ]79# CHECK-NEXT: ]
80# CHECK-NEXT: Address: 0x080# CHECK-NEXT: Address: 0x0
81# CHECK-NEXT: Offset: 0x101081# CHECK-NEXT: Offset: 0x2000
82# CHECK-NEXT: Size: 882# CHECK-NEXT: Size: 8
83# CHECK-NEXT: Link: 083# CHECK-NEXT: Link: 0
84# CHECK-NEXT: Info: 084# CHECK-NEXT: Info: 0
85# CHECK-NEXT: AddressAlignment: 185# CHECK-NEXT: AddressAlignment: 1
86# CHECK-NEXT: EntrySize: 086# CHECK-NEXT: EntrySize: 1
87# CHECK-NEXT: }87# CHECK-NEXT: }
88# CHECK-NEXT: Section {88# CHECK-NEXT: Section {
89# CHECK-NEXT: Index: 389# CHECK-NEXT: Index: 3
...@@ -92,7 +92,7 @@ _start:...@@ -92,7 +92,7 @@ _start:
92# CHECK-NEXT: Flags [ (0x0)92# CHECK-NEXT: Flags [ (0x0)
93# CHECK-NEXT: ]93# CHECK-NEXT: ]
94# CHECK-NEXT: Address: 0x094# CHECK-NEXT: Address: 0x0
95# CHECK-NEXT: Offset: 0x101895# CHECK-NEXT: Offset: 0x2008
96# CHECK-NEXT: Size: 4896# CHECK-NEXT: Size: 48
97# CHECK-NEXT: Link: 597# CHECK-NEXT: Link: 5
98# CHECK-NEXT: Info: 198# CHECK-NEXT: Info: 1
...@@ -106,7 +106,7 @@ _start:...@@ -106,7 +106,7 @@ _start:
106# CHECK-NEXT: Flags [ (0x0)106# CHECK-NEXT: Flags [ (0x0)
107# CHECK-NEXT: ]107# CHECK-NEXT: ]
108# CHECK-NEXT: Address: 0x0108# CHECK-NEXT: Address: 0x0
109# CHECK-NEXT: Offset: 0x1048109# CHECK-NEXT: Offset: 0x2038
110# CHECK-NEXT: Size: 42110# CHECK-NEXT: Size: 42
111# CHECK-NEXT: Link: 0111# CHECK-NEXT: Link: 0
112# CHECK-NEXT: Info: 0112# CHECK-NEXT: Info: 0
...@@ -120,7 +120,7 @@ _start:...@@ -120,7 +120,7 @@ _start:
120# CHECK-NEXT: Flags [ (0x0)120# CHECK-NEXT: Flags [ (0x0)
121# CHECK-NEXT: ]121# CHECK-NEXT: ]
122# CHECK-NEXT: Address: 0x0122# CHECK-NEXT: Address: 0x0
123# CHECK-NEXT: Offset: 0x1072123# CHECK-NEXT: Offset: 0x2062
124# CHECK-NEXT: Size: 8124# CHECK-NEXT: Size: 8
125# CHECK-NEXT: Link: 0125# CHECK-NEXT: Link: 0
126# CHECK-NEXT: Info: 0126# CHECK-NEXT: Info: 0
...@@ -178,8 +178,8 @@ _start:...@@ -178,8 +178,8 @@ _start:
178# CHECK-NEXT: Offset: 0x1000178# CHECK-NEXT: Offset: 0x1000
179# CHECK-NEXT: VirtualAddress: 0x201000179# CHECK-NEXT: VirtualAddress: 0x201000
180# CHECK-NEXT: PhysicalAddress: 0x201000180# CHECK-NEXT: PhysicalAddress: 0x201000
181# CHECK-NEXT: FileSize: 16181# CHECK-NEXT: FileSize: 4096
182# CHECK-NEXT: MemSize: 16182# CHECK-NEXT: MemSize: 4096
183# CHECK-NEXT: Flags [ (0x5)183# CHECK-NEXT: Flags [ (0x5)
184# CHECK-NEXT: PF_R (0x4)184# CHECK-NEXT: PF_R (0x4)
185# CHECK-NEXT: PF_X (0x1)185# CHECK-NEXT: PF_X (0x1)
...@@ -246,7 +246,9 @@ _start:...@@ -246,7 +246,9 @@ _start:
246# UNKNOWN_EMUL: unknown emulation: wrong_emul_fbsd246# UNKNOWN_EMUL: unknown emulation: wrong_emul_fbsd
247247
248# RUN: not ld.lld %t --lto-partitions=0 2>&1 | FileCheck --check-prefix=NOTHREADS %s248# RUN: not ld.lld %t --lto-partitions=0 2>&1 | FileCheck --check-prefix=NOTHREADS %s
249# RUN: not ld.lld %t --plugin-opt=lto-partitions=0 2>&1 | FileCheck --check-prefix=NOTHREADS %s
249# NOTHREADS: --lto-partitions: number of threads must be > 0250# NOTHREADS: --lto-partitions: number of threads must be > 0
250251
251# RUN: not ld.lld %t --thinlto-jobs=0 2>&1 | FileCheck --check-prefix=NOTHREADSTHIN %s252# RUN: not ld.lld %t --thinlto-jobs=0 2>&1 | FileCheck --check-prefix=NOTHREADSTHIN %s
253# RUN: not ld.lld %t --plugin-opt=jobs=0 2>&1 | FileCheck --check-prefix=NOTHREADSTHIN %s
252# NOTHREADSTHIN: --thinlto-jobs: number of threads must be > 0254# NOTHREADSTHIN: --thinlto-jobs: number of threads must be > 0
deps/lld/test/ELF/basic32.s+8-8
...@@ -25,7 +25,7 @@ _start:...@@ -25,7 +25,7 @@ _start:
25# CHECK-NEXT: Version: 125# CHECK-NEXT: Version: 1
26# CHECK-NEXT: Entry: 0x1100026# CHECK-NEXT: Entry: 0x11000
27# CHECK-NEXT: ProgramHeaderOffset: 0x3427# CHECK-NEXT: ProgramHeaderOffset: 0x34
28# CHECK-NEXT: SectionHeaderOffset: 0x106828# CHECK-NEXT: SectionHeaderOffset: 0x205C
29# CHECK-NEXT: Flags [ (0x0)29# CHECK-NEXT: Flags [ (0x0)
30# CHECK-NEXT: ]30# CHECK-NEXT: ]
31# CHECK-NEXT: HeaderSize: 5231# CHECK-NEXT: HeaderSize: 52
...@@ -75,12 +75,12 @@ _start:...@@ -75,12 +75,12 @@ _start:
75# CHECK-NEXT: SHF_STRINGS (0x20)75# CHECK-NEXT: SHF_STRINGS (0x20)
76# CHECK-NEXT: ]76# CHECK-NEXT: ]
77# CHECK-NEXT: Address: 0x077# CHECK-NEXT: Address: 0x0
78# CHECK-NEXT: Offset: 0x100C78# CHECK-NEXT: Offset: 0x2000
79# CHECK-NEXT: Size: 879# CHECK-NEXT: Size: 8
80# CHECK-NEXT: Link: 080# CHECK-NEXT: Link: 0
81# CHECK-NEXT: Info: 081# CHECK-NEXT: Info: 0
82# CHECK-NEXT: AddressAlignment: 182# CHECK-NEXT: AddressAlignment: 1
83# CHECK-NEXT: EntrySize: 083# CHECK-NEXT: EntrySize: 1
84# CHECK-NEXT: }84# CHECK-NEXT: }
85# CHECK-NEXT: Section {85# CHECK-NEXT: Section {
86# CHECK-NEXT: Index: 386# CHECK-NEXT: Index: 3
...@@ -89,7 +89,7 @@ _start:...@@ -89,7 +89,7 @@ _start:
89# CHECK-NEXT: Flags [89# CHECK-NEXT: Flags [
90# CHECK-NEXT: ]90# CHECK-NEXT: ]
91# CHECK-NEXT: Address: 0x091# CHECK-NEXT: Address: 0x0
92# CHECK-NEXT: Offset: 0x101492# CHECK-NEXT: Offset: 0x2008
93# CHECK-NEXT: Size: 3293# CHECK-NEXT: Size: 32
94# CHECK-NEXT: Link: 594# CHECK-NEXT: Link: 5
95# CHECK-NEXT: Info: 195# CHECK-NEXT: Info: 1
...@@ -103,7 +103,7 @@ _start:...@@ -103,7 +103,7 @@ _start:
103# CHECK-NEXT: Flags [ (0x0)103# CHECK-NEXT: Flags [ (0x0)
104# CHECK-NEXT: ]104# CHECK-NEXT: ]
105# CHECK-NEXT: Address: 0x0105# CHECK-NEXT: Address: 0x0
106# CHECK-NEXT: Offset: 0x1034106# CHECK-NEXT: Offset: 0x2028
107# CHECK-NEXT: Size: 42107# CHECK-NEXT: Size: 42
108# CHECK-NEXT: Link: 0108# CHECK-NEXT: Link: 0
109# CHECK-NEXT: Info: 0109# CHECK-NEXT: Info: 0
...@@ -117,7 +117,7 @@ _start:...@@ -117,7 +117,7 @@ _start:
117# CHECK-NEXT: Flags [ (0x0)117# CHECK-NEXT: Flags [ (0x0)
118# CHECK-NEXT: ]118# CHECK-NEXT: ]
119# CHECK-NEXT: Address: 0x0119# CHECK-NEXT: Address: 0x0
120# CHECK-NEXT: Offset: 0x105E120# CHECK-NEXT: Offset: 0x2052
121# CHECK-NEXT: Size: 8121# CHECK-NEXT: Size: 8
122# CHECK-NEXT: Link: 0122# CHECK-NEXT: Link: 0
123# CHECK-NEXT: Info: 0123# CHECK-NEXT: Info: 0
...@@ -155,8 +155,8 @@ _start:...@@ -155,8 +155,8 @@ _start:
155# CHECK-NEXT: Offset: 0x1000155# CHECK-NEXT: Offset: 0x1000
156# CHECK-NEXT: VirtualAddress: 0x11000156# CHECK-NEXT: VirtualAddress: 0x11000
157# CHECK-NEXT: PhysicalAddress: 0x11000157# CHECK-NEXT: PhysicalAddress: 0x11000
158# CHECK-NEXT: FileSize: 12158# CHECK-NEXT: FileSize: 4096
159# CHECK-NEXT: MemSize: 12159# CHECK-NEXT: MemSize: 4096
160# CHECK-NEXT: Flags [ (0x5)160# CHECK-NEXT: Flags [ (0x5)
161# CHECK-NEXT: PF_R (0x4)161# CHECK-NEXT: PF_R (0x4)
162# CHECK-NEXT: PF_X (0x1)162# CHECK-NEXT: PF_X (0x1)
deps/lld/test/ELF/basic64be.s+1-1
...@@ -175,7 +175,7 @@ _start:...@@ -175,7 +175,7 @@ _start:
175# CHECK-NEXT: Link: 0175# CHECK-NEXT: Link: 0
176# CHECK-NEXT: Info: 0176# CHECK-NEXT: Info: 0
177# CHECK-NEXT: AddressAlignment: 1177# CHECK-NEXT: AddressAlignment: 1
178# CHECK-NEXT: EntrySize: 0178# CHECK-NEXT: EntrySize: 1
179# CHECK-NEXT: SectionData (179# CHECK-NEXT: SectionData (
180# CHECK-NEXT: 0000: 4C4C4420 312E3000 |LLD 1.0.|180# CHECK-NEXT: 0000: 4C4C4420 312E3000 |LLD 1.0.|
181# CHECK-NEXT: )181# CHECK-NEXT: )
deps/lld/test/ELF/build-id.s+18-3
...@@ -2,6 +2,9 @@...@@ -2,6 +2,9 @@
22
3# RUN: llvm-mc -filetype=obj -triple=x86_64-unknown-linux %s -o %t3# RUN: llvm-mc -filetype=obj -triple=x86_64-unknown-linux %s -o %t
44
5# RUN: ld.lld --build-id %t -o %t2
6# RUN: llvm-readobj -s %t2 | FileCheck -check-prefix=ALIGN %s
7
5# RUN: ld.lld --build-id %t -o %t2 -threads8# RUN: ld.lld --build-id %t -o %t2 -threads
6# RUN: llvm-objdump -s %t2 | FileCheck -check-prefix=DEFAULT %s9# RUN: llvm-objdump -s %t2 | FileCheck -check-prefix=DEFAULT %s
7# RUN: ld.lld --build-id %t -o %t2 -no-threads10# RUN: ld.lld --build-id %t -o %t2 -no-threads
...@@ -45,18 +48,30 @@ _start:...@@ -45,18 +48,30 @@ _start:
45.section .note.test, "a", @note48.section .note.test, "a", @note
46 .quad 4249 .quad 42
4750
51# ALIGN: Name: .note.gnu.build-id
52# ALIGN-NEXT: Type: SHT_NOTE
53# ALIGN-NEXT: Flags [
54# ALIGN-NEXT: SHF_ALLOC
55# ALIGN-NEXT: ]
56# ALIGN-NEXT: Address:
57# ALIGN-NEXT: Offset: [[_:0x[0-9A-Z]*(0|4|8|C)$]]
58# ALIGN-NEXT: Size:
59# ALIGN-NEXT: Link:
60# ALIGN-NEXT: Info:
61# ALIGN-NEXT: AddressAlignment: 4
62
48# DEFAULT: Contents of section .note.test:63# DEFAULT: Contents of section .note.test:
49# DEFAULT: Contents of section .note.gnu.build-id:64# DEFAULT: Contents of section .note.gnu.build-id:
50# DEFAULT-NEXT: 04000000 08000000 03000000 474e5500 ............GNU.65# DEFAULT-NEXT: 04000000 08000000 03000000 474e5500 ............GNU.
51# DEFAULT-NEXT: fd36edb1 f6ff02af66# DEFAULT-NEXT: 894c04e8 fbf5556b
5267
53# MD5: Contents of section .note.gnu.build-id:68# MD5: Contents of section .note.gnu.build-id:
54# MD5-NEXT: 04000000 10000000 03000000 474e5500 ............GNU.69# MD5-NEXT: 04000000 10000000 03000000 474e5500 ............GNU.
55# MD5-NEXT: fc70# MD5-NEXT: 6a51bbd7 9e8ee3f9 2e02d213 711cfec9
5671
57# SHA1: Contents of section .note.gnu.build-id:72# SHA1: Contents of section .note.gnu.build-id:
58# SHA1-NEXT: 04000000 14000000 03000000 474e5500 ............GNU.73# SHA1-NEXT: 04000000 14000000 03000000 474e5500 ............GNU.
59# SHA1-NEXT: 55b1eedb 03b588e1 09987d1d e9a79be774# SHA1-NEXT: 9a8618b1 d6fd0e5c eda73dd8 76de5596
6075
61# UUID: Contents of section .note.gnu.build-id:76# UUID: Contents of section .note.gnu.build-id:
62# UUID-NEXT: 04000000 10000000 03000000 474e5500 ............GNU.77# UUID-NEXT: 04000000 10000000 03000000 474e5500 ............GNU.
deps/lld/test/ELF/chroot.s created+12
...@@ -0,0 +1,12 @@
1# REQUIRES: x86
2# RUN: rm -rf %t.dir
3# RUN: mkdir %t.dir
4# RUN: llvm-mc -filetype=obj -triple=x86_64-unknown-linux %s -o %t.dir/chroot.o
5# RUN: ld.lld --chroot %t.dir -o %t.exe /chroot.o
6
7# RUN: echo 'INPUT(/chroot.o)' > %t.dir/scr
8# RUN: ld.lld --chroot %t.dir -o %t.exe /scr
9
10.globl _start
11_start:
12 ret
deps/lld/test/ELF/comment-gc.s+1-2
...@@ -5,8 +5,7 @@...@@ -5,8 +5,7 @@
5# RUN: llvm-objdump -s %t1 | FileCheck %s5# RUN: llvm-objdump -s %t1 | FileCheck %s
66
7# CHECK: Contents of section .comment:7# CHECK: Contents of section .comment:
8# CHECK-NEXT: 0000 00666f6f 00626172 004c4c44 20312e30 .foo.bar.LLD 1.08# CHECK-NEXT: foo..LLD 1.0.bar
9# CHECK-NEXT: 0010 00 .
109
11.ident "foo"10.ident "foo"
1211
deps/lld/test/ELF/common-gc.s created+41
...@@ -0,0 +1,41 @@
1# REQUIRES: x86
2# RUN: llvm-mc -filetype=obj -triple=x86_64-pc-linux %s -o %t
3
4# RUN: ld.lld %t -o %t2
5# RUN: llvm-readobj -sections -symbols %t2 | FileCheck %s --check-prefix=NOGC
6
7# NOGC: Name: .bss
8# NOGC-NEXT: Type:
9# NOGC-NEXT: Flags [
10# NOGC-NEXT: SHF_ALLOC
11# NOGC-NEXT: SHF_WRITE
12# NOGC-NEXT: ]
13# NOGC-NEXT: Address:
14# NOGC-NEXT: Offset:
15# NOGC-NEXT: Size: 8
16
17# NOGC: Name: bar
18# NOGC: Name: foo
19
20# RUN: ld.lld -gc-sections %t -o %t1
21# RUN: llvm-readobj -sections -symbols %t1 | FileCheck %s --check-prefix=GC
22
23# GC: Name: .bss
24# GC-NEXT: Type:
25# GC-NEXT: Flags [
26# GC-NEXT: SHF_ALLOC
27# GC-NEXT: SHF_WRITE
28# GC-NEXT: ]
29# GC-NEXT: Address:
30# GC-NEXT: Offset:
31# GC-NEXT: Size: 4
32
33# GC-NOT: Name: bar
34
35.comm foo,4,4
36.comm bar,4,4
37
38.text
39.globl _start
40_start:
41 .quad foo
deps/lld/test/ELF/common-gc2.s created+15
...@@ -0,0 +1,15 @@
1# REQUIRES: x86
2# RUN: llvm-mc -filetype=obj -triple=x86_64-pc-linux %s -o %t
3# RUN: ld.lld -gc-sections -export-dynamic %t -o %t1
4# RUN: llvm-readobj --dyn-symbols %t1 | FileCheck %s
5
6# CHECK: Name: bar@
7# CHECK: Name: foo@
8
9.comm foo,4,4
10.comm bar,4,4
11
12.text
13.globl _start
14_start:
15 .quad foo
deps/lld/test/ELF/common-gc3.s created+18
...@@ -0,0 +1,18 @@
1# REQUIRES: x86
2# RUN: llvm-mc -filetype=obj -triple=x86_64-unknown-linux %s -o %t.o
3# RUN: ld.lld %t.o -o %t1 --gc-sections
4# RUN: llvm-objdump -s %t1 | FileCheck %s
5
6# CHECK: Contents of section .noalloc:
7# 0000 00000000 00000000 ........
8
9 .section .text._start,"ax",@progbits
10 .globl _start
11_start:
12 retq
13
14 .type unused,@object
15 .comm unused,4,4
16
17 .section .noalloc,"",@progbits
18 .quad unused
deps/lld/test/ELF/common.s+5-5
...@@ -12,13 +12,13 @@...@@ -12,13 +12,13 @@
12// CHECK-NEXT: ]12// CHECK-NEXT: ]
13// CHECK-NEXT: Address: 0x20100013// CHECK-NEXT: Address: 0x201000
14// CHECK-NEXT: Offset:14// CHECK-NEXT: Offset:
15// CHECK-NEXT: Size: 2215// CHECK-NEXT: Size: 36
16// CHECK-NEXT: Link: 016// CHECK-NEXT: Link: 0
17// CHECK-NEXT: Info: 017// CHECK-NEXT: Info: 0
18// CHECK-NEXT: AddressAlignment: 1618// CHECK-NEXT: AddressAlignment: 16
1919
20// CHECK: Name: sym120// CHECK: Name: sym1
21// CHECK-NEXT: Value: 0x20100421// CHECK-NEXT: Value: 0x201000
22// CHECK-NEXT: Size: 822// CHECK-NEXT: Size: 8
23// CHECK-NEXT: Binding: Global23// CHECK-NEXT: Binding: Global
24// CHECK-NEXT: Type: Object24// CHECK-NEXT: Type: Object
...@@ -26,7 +26,7 @@...@@ -26,7 +26,7 @@
26// CHECK-NEXT: Section: .bss26// CHECK-NEXT: Section: .bss
2727
28// CHECK: Name: sym228// CHECK: Name: sym2
29// CHECK-NEXT: Value: 0x20100C29// CHECK-NEXT: Value: 0x201008
30// CHECK-NEXT: Size: 830// CHECK-NEXT: Size: 8
31// CHECK-NEXT: Binding: Global31// CHECK-NEXT: Binding: Global
32// CHECK-NEXT: Type: Object32// CHECK-NEXT: Type: Object
...@@ -34,7 +34,7 @@...@@ -34,7 +34,7 @@
34// CHECK-NEXT: Section: .bss34// CHECK-NEXT: Section: .bss
3535
36// CHECK: Name: sym336// CHECK: Name: sym3
37// CHECK-NEXT: Value: 0x20101437// CHECK-NEXT: Value: 0x201010
38// CHECK-NEXT: Size: 238// CHECK-NEXT: Size: 2
39// CHECK-NEXT: Binding: Global39// CHECK-NEXT: Binding: Global
40// CHECK-NEXT: Type: Object40// CHECK-NEXT: Type: Object
...@@ -42,7 +42,7 @@...@@ -42,7 +42,7 @@
42// CHECK-NEXT: Section: .bss42// CHECK-NEXT: Section: .bss
4343
44// CHECK: Name: sym444// CHECK: Name: sym4
45// CHECK-NEXT: Value: 0x20100045// CHECK-NEXT: Value: 0x201020
46// CHECK-NEXT: Size: 446// CHECK-NEXT: Size: 4
47// CHECK-NEXT: Binding: Global47// CHECK-NEXT: Binding: Global
48// CHECK-NEXT: Type: Object48// CHECK-NEXT: Type: Object
deps/lld/test/ELF/compress-debug-sections-reloc.s created+26
...@@ -0,0 +1,26 @@
1# REQUIRES: x86, zlib
2
3# RUN: llvm-mc -filetype=obj -triple=x86_64-unknown-linux %s -o %t.o
4# RUN: llvm-mc -filetype=obj -triple=x86_64-unknown-linux %S/Inputs/compress-debug.s -o %t2.o
5# RUN: ld.lld %t2.o %t.o -o %t1 --compress-debug-sections=zlib -Ttext=0
6# RUN: llvm-dwarfdump %t1 -debug-str | FileCheck %s
7# These two checks correspond to the patched values of a_sym and a_debug_sym.
8# D = 0x44 - address of .text input section for this file (the start address of
9# .text is 0 as requested on the command line, and the size of the
10# preceding .text in the other input file is 0x44).
11# C = 0x43 - offset of .debug_info section for this file (the size of
12# the preceding .debug_info from the other input file is 0x43).
13# CHECK: 0x00000000: "D"
14# CHECK: 0x00000004: "C"
15
16.text
17a_sym:
18nop
19
20.section .debug_str,"",@progbits
21.long a_sym
22.long a_debug_sym
23
24.section .debug_info,"",@progbits
25a_debug_sym:
26.long 0x88776655
deps/lld/test/ELF/compress-debug-sections.s+6-1
...@@ -15,12 +15,17 @@...@@ -15,12 +15,17 @@
15# ZLIBFLAGS-NEXT: Flags [15# ZLIBFLAGS-NEXT: Flags [
16# ZLIBFLAGS-NEXT: SHF_COMPRESSED16# ZLIBFLAGS-NEXT: SHF_COMPRESSED
1717
18# RUN: llvm-dwarfdump %t1 -debug-dump=str | \18# RUN: llvm-dwarfdump %t1 -debug-str | \
19# RUN: FileCheck %s --check-prefix=DEBUGSTR19# RUN: FileCheck %s --check-prefix=DEBUGSTR
20# DEBUGSTR: .debug_str contents:20# DEBUGSTR: .debug_str contents:
21# DEBUGSTR-NEXT: AAAAAAAAAAAAAAAAAAAAAAAAAAA21# DEBUGSTR-NEXT: AAAAAAAAAAAAAAAAAAAAAAAAAAA
22# DEBUGSTR-NEXT: BBBBBBBBBBBBBBBBBBBBBBBBBBB22# DEBUGSTR-NEXT: BBBBBBBBBBBBBBBBBBBBBBBBBBB
2323
24## Test alias.
25# RUN: ld.lld %t.o -o %t2 --compress-debug-sections zlib
26# RUN: llvm-objdump -s %t2 | FileCheck %s --check-prefix=ZLIBCONTENT
27# RUN: llvm-readobj -s %t2 | FileCheck %s --check-prefix=ZLIBFLAGS
28
24# RUN: not ld.lld %t.o -o %t1 --compress-debug-sections=zlib-gabi 2>&1 | \29# RUN: not ld.lld %t.o -o %t1 --compress-debug-sections=zlib-gabi 2>&1 | \
25# RUN: FileCheck -check-prefix=ERR %s30# RUN: FileCheck -check-prefix=ERR %s
26# ERR: unknown --compress-debug-sections value: zlib-gabi31# ERR: unknown --compress-debug-sections value: zlib-gabi
deps/lld/test/ELF/compressed-debug-conflict.s created+29
...@@ -0,0 +1,29 @@
1# REQUIRES: x86, zlib
2# RUN: llvm-mc -filetype=obj -triple i686-linux-gnu -compress-debug-sections=zlib %s -o %t.o
3# RUN: llvm-readobj -sections %t.o | FileCheck -check-prefix=OBJ %s
4# RUN: not ld.lld %t.o %t.o -o %tout 2>&1 | FileCheck -check-prefix=ERROR %s
5
6# OBJ: Sections [
7# OBJ: Section {
8# OBJ: Index: 3
9# OBJ-NEXT: Name: .debug_line (16)
10# OBJ-NEXT: Type: SHT_PROGBITS (0x1)
11# OBJ-NEXT: Flags [ (0x800)
12# OBJ-NEXT: SHF_COMPRESSED (0x800)
13# OBJ-NEXT: ]
14
15# ERROR: error: duplicate symbol: main
16# ERROR-NEXT: >>> defined at reduced.c:2 (/tmp/reduced.c:2)
17# ERROR-NEXT: >>>
18# ERROR-NEXT: >>> defined at reduced.c:2 (/tmp/reduced.c:2)
19# ERROR-NEXT: >>>
20
21 .text
22 .file "reduced.c"
23 .globl main
24main:
25 .file 1 "/tmp" "reduced.c"
26 .loc 1 2 0
27 xorl %eax, %eax
28 retl
29 .file 2 "/tmp/repeat/repeat/repeat/repeat" "repeat.h"
deps/lld/test/ELF/compressed-debug-input.s+8-8
...@@ -39,10 +39,10 @@...@@ -39,10 +39,10 @@
39# GNU-NEXT: EntrySize: 139# GNU-NEXT: EntrySize: 1
40# GNU-NEXT: }40# GNU-NEXT: }
4141
42# RUN: ld.lld %t -o %t.so -shared42# RUN: ld.lld --hash-style=sysv %t -o %t.so -shared
43# RUN: llvm-readobj -sections -section-data %t.so | FileCheck -check-prefix=DATA %s43# RUN: llvm-readobj -sections -section-data %t.so | FileCheck -check-prefix=DATA %s
4444
45# RUN: ld.lld %t2 -o %t2.so -shared45# RUN: ld.lld --hash-style=sysv %t2 -o %t2.so -shared
46# RUN: llvm-readobj -sections -section-data %t2.so | FileCheck -check-prefix=DATA %s46# RUN: llvm-readobj -sections -section-data %t2.so | FileCheck -check-prefix=DATA %s
4747
48# DATA: Section {48# DATA: Section {
...@@ -59,13 +59,13 @@...@@ -59,13 +59,13 @@
59# DATA-NEXT: Link: 059# DATA-NEXT: Link: 0
60# DATA-NEXT: Info: 060# DATA-NEXT: Info: 0
61# DATA-NEXT: AddressAlignment: 161# DATA-NEXT: AddressAlignment: 1
62# DATA-NEXT: EntrySize: 062# DATA-NEXT: EntrySize: 1
63# DATA-NEXT: SectionData (63# DATA-NEXT: SectionData (
64# DATA-NEXT: 0000: 73686F72 7420756E 7369676E 65642069 |short unsigned i|64# DATA-NEXT: 0000: 6C6F6E67 20756E73 69676E65 6420696E |long unsigned in|
65# DATA-NEXT: 0010: 6E740075 6E736967 6E656420 696E7400 |nt.unsigned int.|65# DATA-NEXT: 0010: 7400756E 7369676E 65642063 68617200 |t.unsigned char.|
66# DATA-NEXT: 0020: 6C6F6E67 20756E73 69676E65 6420696E |long unsigned in|66# DATA-NEXT: 0020: 756E7369 676E6564 20696E74 00636861 |unsigned int.cha|
67# DATA-NEXT: 0030: 74006368 61720075 6E736967 6E656420 |t.char.unsigned |67# DATA-NEXT: 0030: 72007368 6F727420 756E7369 676E6564 |r.short unsigned|
68# DATA-NEXT: 0040: 63686172 00 |char.|68# DATA-NEXT: 0040: 20696E74 00 | int.|
69# DATA-NEXT: )69# DATA-NEXT: )
70# DATA-NEXT: }70# DATA-NEXT: }
7171
deps/lld/test/ELF/conflict-debug-variable.s created+144
...@@ -0,0 +1,144 @@
1# RUN: llvm-mc -filetype=obj -triple=x86_64-unknown-linux %s -o %t.o
2# RUN: llvm-dwarfdump %t.o | FileCheck -check-prefix=INPUT %s
3# RUN: not ld.lld %t.o %t.o -o %t 2>&1 | FileCheck %s
4
5# INPUT: .debug_info contents:
6# INPUT: DW_TAG_variable
7# INPUT-NEXT: DW_AT_name ("foo")
8# INPUT-NEXT: DW_AT_decl_file ("1.c")
9# INPUT-NEXT: DW_AT_decl_line (1)
10# INPUT-NEXT: DW_AT_type (cu + 0x0032 "int")
11# INPUT-NEXT: DW_AT_external (true)
12# INPUT-NEXT: DW_AT_location (DW_OP_addr 0x0)
13# INPUT: DW_TAG_variable
14# INPUT-NEXT: DW_AT_name ("bar")
15# INPUT-NEXT: DW_AT_decl_file ("1.c")
16# INPUT-NEXT: DW_AT_decl_line (2)
17# INPUT-NEXT: DW_AT_type (cu + 0x0032 "int")
18# INPUT-NEXT: DW_AT_external (true)
19# INPUT-NEXT: DW_AT_location (DW_OP_addr 0x0)
20
21## Check we use information from .debug_info in messages.
22# CHECK: duplicate symbol: bar
23# CHECK-NEXT: >>> defined at 1.c:2
24# CHECK-NEXT: >>> {{.*}}:(bar)
25# CHECK-NEXT: >>> defined at 1.c:2
26# CHECK-NEXT: >>> {{.*}}:(.data+0x0)
27# CHECK: duplicate symbol: foo
28# CHECK-NEXT: >>> defined at 1.c:1
29# CHECK-NEXT: >>> {{.*}}:(foo)
30# CHECK-NEXT: >>> defined at 1.c:1
31# CHECK-NEXT: >>> {{.*}}:(.bss+0x0)
32
33## Check that stripping debug sections does not break error reporting.
34# RUN: not ld.lld --strip-debug %t.o %t.o -o %t 2>&1 | FileCheck %s
35
36# Used reduced output from following code and gcc 7.1.0
37# to produce this input file:
38# Source (1.c):
39# int foo = 0;
40# int bar = 1;
41# Invocation: g++ -g -S 1.c
42
43.bss
44.globl foo
45.type foo, @object
46.size foo, 4
47foo:
48
49.data
50.globl bar
51.type bar, @object
52.size bar, 4
53bar:
54
55.text
56.file 1 "1.c"
57
58.section .debug_info,"",@progbits
59 .long 0x4b # Compile Unit: length = 0x0000004b)
60 .value 0x4 # version = 0x0004
61 .long 0 # abbr_offset = 0x0
62 .byte 0x8 # addr_size = 0x08
63
64 .uleb128 0x1 # DW_TAG_compile_unit [1] *
65 .long 0 # DW_AT_producer [DW_FORM_strp] ( .debug_str[0x00000000] = )
66 .byte 0x4 # DW_AT_language [DW_FORM_data1] (DW_LANG_C_plus_plus)
67 .string "1.c" # DW_AT_name [DW_FORM_string] ("1.c")
68 .long 0 # DW_AT_comp_dir [DW_FORM_strp] ( .debug_str[0x00000000] = )
69 .long 0 # DW_AT_stmt_list [DW_FORM_sec_offset] (0x00000000)
70
71 .uleb128 0x2 # DW_TAG_variable [2]
72 .string "foo" # DW_AT_name [DW_FORM_string] ("foo")
73 .byte 0x1 # DW_AT_decl_file [DW_FORM_data1] ("1.c")
74 .byte 0x1 # DW_AT_decl_line [DW_FORM_data1] (1)
75 .long 0x32 # DW_AT_type [DW_FORM_ref4] (cu + 0x0032 => {0x00000032})
76 .uleb128 0x9 # DW_AT_external [DW_FORM_flag_present] (true)
77 .byte 0x3
78 .quad foo # DW_AT_location [DW_FORM_exprloc] (DW_OP_addr 0x0)
79
80 .uleb128 0x3 # DW_TAG_base_type [3]
81 .byte 0x4 # DW_AT_byte_size [DW_FORM_data1] (0x04)
82 .byte 0x5 # DW_AT_encoding [DW_FORM_data1] (DW_ATE_signed)
83 .string "int" # DW_AT_name [DW_FORM_string] ("int")
84
85 .uleb128 0x2 # DW_TAG_variable [2]
86 .string "bar" # DW_AT_name [DW_FORM_string] ("bar")
87 .byte 0x1 # DW_AT_decl_file [DW_FORM_data1] ("1.c")
88 .byte 0x2 # DW_AT_decl_line [DW_FORM_data1] (2)
89 .long 0x32 # DW_AT_type [DW_FORM_ref4] (cu + 0x0032 => {0x00000032})
90 .uleb128 0x9 # DW_AT_external [DW_FORM_flag_present] (true)
91 .byte 0x3
92 .quad bar # DW_AT_location [DW_FORM_exprloc] (DW_OP_addr 0x0)
93 .byte 0 # END
94
95
96.section .debug_abbrev,"",@progbits
97 .uleb128 0x1 # Abbreviation code.
98 .uleb128 0x11 # DW_TAG_compile_unit
99
100 .byte 0x1 # ID
101 .uleb128 0x25 # DW_AT_producer, DW_FORM_strp
102 .uleb128 0xe
103 .uleb128 0x13 # DW_AT_language, DW_FORM_data1
104 .uleb128 0xb
105 .uleb128 0x3 # DW_AT_name, DW_FORM_string
106 .uleb128 0x8
107 .uleb128 0x1b # DW_AT_comp_dir, DW_FORM_strp
108 .uleb128 0xe
109 .uleb128 0x10 # DW_AT_stmt_list, DW_FORM_sec_offset
110 .uleb128 0x17
111 .byte 0
112 .byte 0
113
114 .uleb128 0x2 # ID
115 .uleb128 0x34 # DW_TAG_variable, DW_CHILDREN_no
116 .byte 0
117 .uleb128 0x3 # DW_AT_name, DW_FORM_string
118 .uleb128 0x8
119 .uleb128 0x3a # DW_AT_decl_file, DW_FORM_data1
120 .uleb128 0xb
121 .uleb128 0x3b # DW_AT_decl_line, DW_FORM_data1
122 .uleb128 0xb
123 .uleb128 0x49 # DW_AT_type, DW_FORM_ref4
124 .uleb128 0x13
125 .uleb128 0x3f # DW_AT_external, DW_FORM_flag_present
126 .uleb128 0x19
127 .uleb128 0x2 # DW_AT_location, DW_FORM_exprloc
128 .uleb128 0x18
129 .byte 0
130 .byte 0
131
132 .uleb128 0x3 # ID
133 .uleb128 0x24 # DW_TAG_base_type, DW_CHILDREN_no
134 .byte 0
135 .uleb128 0xb # DW_AT_byte_size, DW_FORM_data1
136 .uleb128 0xb
137 .uleb128 0x3e # DW_AT_encoding, DW_FORM_data1
138 .uleb128 0xb
139 .uleb128 0x3 # DW_AT_name, DW_FORM_string
140 .uleb128 0x8
141 .byte 0
142 .byte 0
143 .byte 0
144
deps/lld/test/ELF/conflict-debug-variable2.s created+160
...@@ -0,0 +1,160 @@
1# RUN: llvm-mc -filetype=obj -triple=x86_64-unknown-linux %s -o %t.o
2
3# RUN: llvm-dwarfdump -v %t.o | FileCheck -check-prefix=INPUT %s
4# INPUT: .debug_info contents:
5# INPUT: DW_TAG_variable
6# INPUT-NEXT: DW_AT_name [DW_FORM_strp] ( .debug_str[0x00000027] = "foo")
7# INPUT-NEXT: DW_AT_type [DW_FORM_ref4] (cu + 0x0033 => {0x00000033} "int")
8# INPUT-NEXT: DW_AT_external [DW_FORM_flag_present] (true)
9# INPUT-NEXT: DW_AT_decl_file [DW_FORM_data1] ("/home/path/test.c")
10# INPUT-NEXT: DW_AT_decl_line [DW_FORM_data1] (1)
11# INPUT-NEXT: DW_AT_location [DW_FORM_exprloc] (DW_OP_addr 0x0)
12# INPUT: DW_TAG_variable
13# INPUT-NEXT: DW_AT_name [DW_FORM_strp] ( .debug_str[0x0000002f] = "bar")
14# INPUT-NEXT: DW_AT_type [DW_FORM_ref4] (cu + 0x0033 => {0x00000033} "int")
15# INPUT-NEXT: DW_AT_external [DW_FORM_flag_present] (true)
16# INPUT-NEXT: DW_AT_decl_file [DW_FORM_data1] ("/home/path/test.c")
17# INPUT-NEXT: DW_AT_decl_line [DW_FORM_data1] (2)
18# INPUT-NEXT: DW_AT_location [DW_FORM_exprloc] (DW_OP_addr 0x0)
19
20## Check we use information from .debug_info in messages.
21# RUN: not ld.lld %t.o %t.o -o %t 2>&1 | FileCheck %s
22# CHECK: duplicate symbol: bar
23# CHECK-NEXT: >>> defined at test.c:2
24# CHECK-NEXT: >>> {{.*}}:(bar)
25# CHECK-NEXT: >>> defined at test.c:2
26# CHECK-NEXT: >>> {{.*}}:(.data+0x0)
27# CHECK: duplicate symbol: foo
28# CHECK-NEXT: >>> defined at test.c:1
29# CHECK-NEXT: >>> {{.*}}:(foo)
30# CHECK-NEXT: >>> defined at test.c:1
31# CHECK-NEXT: >>> {{.*}}:(.bss+0x0)
32
33# Used reduced output from following code and clang
34# version 6.0.0 (trunk 316661) to produce this input file:
35# Source (test.c):
36# int foo = 0;
37# int bar = 1;
38# Invocation: clang -g -S test.c
39
40.text
41.file "test.c"
42.file 1 "test.c"
43
44.type foo,@object
45.bss
46.globl foo
47.p2align 2
48foo:
49 .long 0
50 .size foo, 4
51
52.type bar,@object
53.data
54.globl bar
55.p2align 2
56bar:
57 .long 1
58 .size bar, 4
59
60.section .debug_str,"MS",@progbits,1
61.Linfo_string0:
62 .asciz "clang version 6.0.0"
63.Linfo_string1:
64 .asciz "test.c"
65.Linfo_string2:
66 .asciz "/home/path/"
67.Linfo_string3:
68 .asciz "foo"
69.Linfo_string4:
70 .asciz "int"
71.Linfo_string5:
72 .asciz "bar"
73
74.section .debug_abbrev,"",@progbits
75 .byte 1 # Abbreviation Code
76 .byte 17 # DW_TAG_compile_unit
77 .byte 1 # DW_CHILDREN_yes
78 .byte 37 # DW_AT_producer
79 .byte 14 # DW_FORM_strp
80 .byte 19 # DW_AT_language
81 .byte 5 # DW_FORM_data2
82 .byte 3 # DW_AT_name
83 .byte 14 # DW_FORM_strp
84 .byte 16 # DW_AT_stmt_list
85 .byte 23 # DW_FORM_sec_offset
86 .byte 27 # DW_AT_comp_dir
87 .byte 14 # DW_FORM_strp
88 .ascii "\264B" # DW_AT_GNU_pubnames
89 .byte 25 # DW_FORM_flag_present
90 .byte 0 # EOM(1)
91 .byte 0 # EOM(2)
92
93 .byte 2 # Abbreviation Code
94 .byte 52 # DW_TAG_variable
95 .byte 0 # DW_CHILDREN_no
96 .byte 3 # DW_AT_name
97 .byte 14 # DW_FORM_strp
98 .byte 73 # DW_AT_type
99 .byte 19 # DW_FORM_ref4
100 .byte 63 # DW_AT_external
101 .byte 25 # DW_FORM_flag_present
102 .byte 58 # DW_AT_decl_file
103 .byte 11 # DW_FORM_data1
104 .byte 59 # DW_AT_decl_line
105 .byte 11 # DW_FORM_data1
106 .byte 2 # DW_AT_location
107 .byte 24 # DW_FORM_exprloc
108 .byte 0 # EOM(1)
109 .byte 0 # EOM(2)
110
111 .byte 3 # Abbreviation Code
112 .byte 36 # DW_TAG_base_type
113 .byte 0 # DW_CHILDREN_no
114 .byte 3 # DW_AT_name
115 .byte 14 # DW_FORM_strp
116 .byte 62 # DW_AT_encoding
117 .byte 11 # DW_FORM_data1
118 .byte 11 # DW_AT_byte_size
119 .byte 11 # DW_FORM_data1
120 .byte 0 # EOM(1)
121 .byte 0 # EOM(2)
122 .byte 0 # EOM(3)
123
124.section .debug_info,"",@progbits
125.Lcu_begin0:
126 .long 76 # Length of Unit
127 .short 4 # DWARF version number
128 .long .debug_abbrev # Offset Into Abbrev. Section
129 .byte 8 # Address Size (in bytes)
130
131 .byte 1 # Abbrev [1] 0xb:0x45 DW_TAG_compile_unit
132 .long .Linfo_string0 # DW_AT_producer
133 .short 12 # DW_AT_language
134 .long .Linfo_string1 # DW_AT_name
135 .long 0 # DW_AT_stmt_list
136 .long .Linfo_string2 # DW_AT_comp_dir
137
138 .byte 2 # Abbrev [2] 0x1e:0x15 DW_TAG_variable
139 .long .Linfo_string3 # DW_AT_name
140 .long 51 # DW_AT_type
141 .byte 1 # DW_AT_decl_file
142 .byte 1 # DW_AT_decl_line
143 .byte 9 # DW_AT_location
144 .byte 3
145 .quad foo
146
147 .byte 3 # Abbrev [3] 0x33:0x7 DW_TAG_base_type
148 .long .Linfo_string4 # DW_AT_name
149 .byte 5 # DW_AT_encoding
150 .byte 4 # DW_AT_byte_size
151
152 .byte 2 # Abbrev [2] 0x3a:0x15 DW_TAG_variable
153 .long .Linfo_string5 # DW_AT_name
154 .long 51 # DW_AT_type
155 .byte 1 # DW_AT_decl_file
156 .byte 2 # DW_AT_decl_line
157 .byte 9 # DW_AT_location
158 .byte 3
159 .quad bar
160 .byte 0 # End Of Children Mark
deps/lld/test/ELF/copy-errors.s+3
...@@ -9,6 +9,9 @@...@@ -9,6 +9,9 @@
9// CHECK: >>> referenced by {{.*}}.o:(.text+0x1)9// CHECK: >>> referenced by {{.*}}.o:(.text+0x1)
10// CHECK: symbol 'zed' defined in {{.*}}.so has no type10// CHECK: symbol 'zed' defined in {{.*}}.so has no type
1111
12// RUN: not ld.lld --noinhibit-exec %t.o %t2.so -o %t 2>&1 | FileCheck %s --check-prefix=NOINHIBIT
13// NOINHIBIT: warning: symbol 'zed' defined in {{.*}}.so has no type
14
12.global _start15.global _start
13_start:16_start:
14call bar17call bar
deps/lld/test/ELF/copy-rel-abs.s created+47
...@@ -0,0 +1,47 @@
1// REQUIRES: x86
2// RUN: llvm-mc -filetype=obj -triple=x86_64-pc-linux %p/Inputs/copy-rel-abs.s -o %t1.o
3// RUN: ld.lld --hash-style=gnu -shared %t1.o -o %t1.so
4// RUN: llvm-readelf --dyn-symbols %t1.so | FileCheck --check-prefix=SYMS %s
5
6// The symbols have the same st_value, but one is ABS.
7// SYMS: 0000000000001000 {{.*}} 4 bar
8// SYMS: 0000000000001000 {{.*}} 4 foo
9// SYMS: 0000000000001000 {{.*}} ABS zed
10
11// RUN: llvm-mc -filetype=obj -triple=x86_64-pc-linux %s -o %t2.o
12// RUN: ld.lld %t2.o %t1.so -o %t2
13// RUN: llvm-readobj --dyn-symbols %t2 | FileCheck %s
14
15// CHECK: DynamicSymbols [
16// CHECK-NEXT: Symbol {
17// CHECK-NEXT: Name:
18// CHECK-NEXT: Value:
19// CHECK-NEXT: Size:
20// CHECK-NEXT: Binding:
21// CHECK-NEXT: Type:
22// CHECK-NEXT: Other:
23// CHECK-NEXT: Section:
24// CHECK-NEXT: }
25// CHECK-NEXT: Symbol {
26// CHECK-NEXT: Name: foo
27// CHECK-NEXT: Value:
28// CHECK-NEXT: Size:
29// CHECK-NEXT: Binding:
30// CHECK-NEXT: Type:
31// CHECK-NEXT: Other:
32// CHECK-NEXT: Section: .bss.rel.ro
33// CHECK-NEXT: }
34// CHECK-NEXT: Symbol {
35// CHECK-NEXT: Name: bar
36// CHECK-NEXT: Value:
37// CHECK-NEXT: Size:
38// CHECK-NEXT: Binding:
39// CHECK-NEXT: Type:
40// CHECK-NEXT: Other:
41// CHECK-NEXT: Section: .bss.rel.ro
42// CHECK-NEXT: }
43// CHECK-NEXT: ]
44
45.global _start
46_start:
47.quad foo
deps/lld/test/ELF/copy-rel-large.s created+20
...@@ -0,0 +1,20 @@
1// REQUIRES: x86
2// RUN: llvm-mc -filetype=obj -triple=x86_64-pc-linux %p/Inputs/copy-rel-large.s -o %t1.o
3// RUN: ld.lld -shared %t1.o -o %t1.so
4// RUN: llvm-mc -filetype=obj -triple=x86_64-pc-linux %s -o %t2.o
5// RUN: ld.lld %t2.o %t1.so -o %t2
6// RUN: llvm-readobj --dyn-symbols %t2 | FileCheck %s
7
8 .global _start
9_start:
10 .quad foo
11
12// CHECK: Symbol {
13// CHECK: Name: foo
14// CHECK-NEXT: Value:
15// CHECK-NEXT: Size: 4294967297
16// CHECK-NEXT: Binding:
17// CHECK-NEXT: Type:
18// CHECK-NEXT: Other:
19// CHECK-NEXT: Section: .bss.rel.ro
20// CHECK-NEXT: }
deps/lld/test/ELF/copy-rel-pie.s+1-1
...@@ -1,7 +1,7 @@...@@ -1,7 +1,7 @@
1// RUN: llvm-mc %s -o %t.o -filetype=obj -triple=x86_64-pc-linux1// RUN: llvm-mc %s -o %t.o -filetype=obj -triple=x86_64-pc-linux
2// RUN: llvm-mc %p/Inputs/copy-rel-pie.s -o %t2.o -filetype=obj -triple=x86_64-pc-linux2// RUN: llvm-mc %p/Inputs/copy-rel-pie.s -o %t2.o -filetype=obj -triple=x86_64-pc-linux
3// RUN: ld.lld %t2.o -o %t2.so -shared3// RUN: ld.lld %t2.o -o %t2.so -shared
4// RUN: ld.lld %t.o %t2.so -o %t.exe -pie4// RUN: ld.lld --hash-style=sysv %t.o %t2.so -o %t.exe -pie
5// RUN: llvm-readobj -s -r %t.exe | FileCheck %s5// RUN: llvm-readobj -s -r %t.exe | FileCheck %s
6// RUN: llvm-objdump -d %t.exe | FileCheck --check-prefix=DISASM %s6// RUN: llvm-objdump -d %t.exe | FileCheck --check-prefix=DISASM %s
77
deps/lld/test/ELF/corrupted-version-reference.s created+14
...@@ -0,0 +1,14 @@
1# RUN: llvm-mc -triple=mips64-unknown-freebsd %s -filetype=obj -o %t.o
2# RUN: not ld.lld %t.o %S/Inputs/corrupt-version-reference.so -o %t.exe 2>&1 | FileCheck %s
3# REQUIRES: mips
4
5# CHECK: error: corrupt input file: version definition index 9 for symbol __cxa_finalize is out of bounds
6# CHECK: >>> defined in {{.+}}/corrupt-version-reference.so
7
8# CHECK: error: corrupt input file: version definition index 0 for symbol _Jv_RegisterClasses is out of bounds
9# CHECK-NEXT: >>> defined in {{.*}}/corrupt-version-reference.so
10
11.globl __start
12__start:
13 dla $a0, __cxa_finalize
14 nop
deps/lld/test/ELF/debug-gc.s+2-2
...@@ -4,11 +4,11 @@...@@ -4,11 +4,11 @@
4# RUN: llvm-objdump -s %t1 | FileCheck %s4# RUN: llvm-objdump -s %t1 | FileCheck %s
55
6# CHECK: Contents of section .debug_str:6# CHECK: Contents of section .debug_str:
7# CHECK-NEXT: 0000 41414100 42424200 43434300 AAA.BBB.CCC.7# CHECK-NEXT: 0000 41414100 43434300 42424200 AAA.CCC.BBB.
8# CHECK: Contents of section .foo:8# CHECK: Contents of section .foo:
9# CHECK-NEXT: 0000 2a0000009# CHECK-NEXT: 0000 2a000000
10# CHECK: Contents of section .debug_info:10# CHECK: Contents of section .debug_info:
11# CHECK-NEXT: 0000 00000000 0400000011# CHECK-NEXT: 0000 00000000 08000000
1212
13.globl _start13.globl _start
14_start:14_start:
deps/lld/test/ELF/defsym-dynamic.s created+10
...@@ -0,0 +1,10 @@
1# REQUIRES: x86
2# RUN: llvm-mc -filetype=obj -triple=x86_64-pc-linux %s -o %t.o
3# RUN: ld.lld -o %t.so -shared %t.o --defsym=foo2=foo1
4# RUN: llvm-readobj --dyn-symbols %t.so | FileCheck %s
5
6# CHECK: Name: foo1
7# CHECK: Name: foo2
8
9.globl foo1
10 foo1 = 0x123
deps/lld/test/ELF/defsym.s+37-5
...@@ -19,7 +19,7 @@...@@ -19,7 +19,7 @@
19# CHECK-NEXT: Section: Absolute19# CHECK-NEXT: Section: Absolute
20# CHECK-NEXT: }20# CHECK-NEXT: }
21# CHECK-NEXT: Symbol {21# CHECK-NEXT: Symbol {
22# CHECK-NEXT: Name: foo122# CHECK-NEXT: Name: foo2
23# CHECK-NEXT: Value: 0x12323# CHECK-NEXT: Value: 0x123
24# CHECK-NEXT: Size:24# CHECK-NEXT: Size:
25# CHECK-NEXT: Binding: Global25# CHECK-NEXT: Binding: Global
...@@ -33,11 +33,43 @@...@@ -33,11 +33,43 @@
33# USE-NEXT: _start:33# USE-NEXT: _start:
34# USE-NEXT: movl $0x123, %edx34# USE-NEXT: movl $0x123, %edx
3535
36# RUN: not ld.lld -o %t %t.o --defsym=foo2=1 2>&1 | FileCheck %s -check-prefix=ERR136# RUN: ld.lld -o %t %t.o --defsym=foo2=1
37# ERR1: error: --defsym: symbol name expected, but got 137# RUN: llvm-readobj -t -s %t | FileCheck %s --check-prefix=ABS
3838
39# RUN: not ld.lld -o %t %t.o --defsym=foo2=und 2>&1 | FileCheck %s -check-prefix=ERR239# ABS: Symbol {
40# ERR2: error: -defsym: undefined symbol: und40# ABS: Name: foo2
41# ABS-NEXT: Value: 0x1
42# ABS-NEXT: Size:
43# ABS-NEXT: Binding: Global
44# ABS-NEXT: Type:
45# ABS-NEXT: Other:
46# ABS-NEXT: Section: Absolute
47# ABS-NEXT: }
48
49# RUN: ld.lld -o %t %t.o --defsym=foo2=foo1+5
50# RUN: llvm-readobj -t -s %t | FileCheck %s --check-prefix=EXPR
51
52# EXPR: Symbol {
53# EXPR: Name: foo1
54# EXPR-NEXT: Value: 0x123
55# EXPR-NEXT: Size:
56# EXPR-NEXT: Binding: Global
57# EXPR-NEXT: Type:
58# EXPR-NEXT: Other:
59# EXPR-NEXT: Section: Absolute
60# EXPR-NEXT: }
61# EXPR-NEXT: Symbol {
62# EXPR-NEXT: Name: foo2
63# EXPR-NEXT: Value: 0x128
64# EXPR-NEXT: Size:
65# EXPR-NEXT: Binding: Global
66# EXPR-NEXT: Type:
67# EXPR-NEXT: Other:
68# EXPR-NEXT: Section: Absolute
69# EXPR-NEXT: }
70
71# RUN: not ld.lld -o %t %t.o --defsym=foo2=und 2>&1 | FileCheck %s -check-prefix=ERR
72# ERR: error: -defsym:1: symbol not found: und
4173
42.globl foo174.globl foo1
43 foo1 = 0x12375 foo1 = 0x123
deps/lld/test/ELF/driver-access.test+1-1
...@@ -7,7 +7,7 @@...@@ -7,7 +7,7 @@
7# RUN: mkdir -p %t.dir7# RUN: mkdir -p %t.dir
8# RUN: chmod 100 %t.dir8# RUN: chmod 100 %t.dir
9# RUN: cd %t.dir9# RUN: cd %t.dir
10# RUN: ld.lld %t.o -o %t.exe10# RUN: ld.lld %t.o -o %t.exe -M
11# RUN: chmod 755 %t.dir11# RUN: chmod 755 %t.dir
1212
13.globl _start13.globl _start
deps/lld/test/ELF/driver.test+2-2
...@@ -18,10 +18,10 @@...@@ -18,10 +18,10 @@
18# HELP: : supported targets:{{.*}} elf18# HELP: : supported targets:{{.*}} elf
1919
20# RUN: ld.lld --version 2>&1 | FileCheck -check-prefix=VERSION %s20# RUN: ld.lld --version 2>&1 | FileCheck -check-prefix=VERSION %s
21# RUN: ld.lld -v 2>&1 | FileCheck -check-prefix=VERSION %s
22# RUN: not ld.lld -v xyz 2>&1 | FileCheck -check-prefix=VERSION %s
21# VERSION: LLD {{.*}} (compatible with GNU linkers)23# VERSION: LLD {{.*}} (compatible with GNU linkers)
2224
23# RUN: not ld.lld -v 2>&1 | FileCheck -check-prefix=VERSION %s
24
25## Attempt to link DSO with -r25## Attempt to link DSO with -r
26# RUN: ld.lld -shared %t -o %t.so26# RUN: ld.lld -shared %t -o %t.so
27# RUN: not ld.lld -r %t.so %t -o %tfail 2>&1 | FileCheck -check-prefix=ERR %s27# RUN: not ld.lld -r %t.so %t -o %tfail 2>&1 | FileCheck -check-prefix=ERR %s
deps/lld/test/ELF/duplicated-synthetic-sym.s+2-1
...@@ -1,9 +1,10 @@...@@ -1,9 +1,10 @@
1// RUN: llvm-mc -filetype=obj -triple=x86_64-pc-linux %s -o %t.o1// RUN: llvm-mc -filetype=obj -triple=x86_64-pc-linux %s -o %t.o
2// RUN: cd %S2// RUN: cd %S
3// RUN: not ld.lld %t.o --format=binary duplicated-synthetic-sym.s -o %t.elf 2>&1 | FileCheck %s3// RUN: not ld.lld %t.o --format=binary duplicated-synthetic-sym.s -o %t.elf 2>&1 | FileCheck %s
4// RUN: not ld.lld %t.o --format binary duplicated-synthetic-sym.s -o %t.elf 2>&1 | FileCheck %s
45
5// CHECK: duplicate symbol: _binary_duplicated_synthetic_sym_s_start6// CHECK: duplicate symbol: _binary_duplicated_synthetic_sym_s_start
6// CHECK: defined at (internal):(.data+0x0)7// CHECK: defined at <internal>:(.data+0x0)
78
8 .globl _binary_duplicated_synthetic_sym_s_start9 .globl _binary_duplicated_synthetic_sym_s_start
9_binary_duplicated_synthetic_sym_s_start:10_binary_duplicated_synthetic_sym_s_start:
deps/lld/test/ELF/dynamic-got.s+1-1
...@@ -1,6 +1,6 @@...@@ -1,6 +1,6 @@
1// REQUIRES: x861// REQUIRES: x86
2// RUN: llvm-mc -filetype=obj -triple=i386-pc-linux %s -o %t.o2// RUN: llvm-mc -filetype=obj -triple=i386-pc-linux %s -o %t.o
3// RUN: ld.lld %t.o -o %t.so -shared3// RUN: ld.lld --hash-style=sysv %t.o -o %t.so -shared
4// RUN: llvm-readobj -s -l -section-data -r %t.so | FileCheck %s4// RUN: llvm-readobj -s -l -section-data -r %t.so | FileCheck %s
55
6// CHECK: Name: .got6// CHECK: Name: .got
deps/lld/test/ELF/dynamic-list-empty.s created+18
...@@ -0,0 +1,18 @@
1# REQUIRES: x86
2
3# BFD reports a parse error on empty lists, but it is clear how to
4# handle it.
5
6# RUN: llvm-mc -filetype=obj -triple=x86_64-pc-linux %s -o %t.o
7# RUN: echo "{ };" > %t.list
8# RUN: ld.lld -dynamic-list %t.list -shared %t.o -o %t.so
9# RUN: llvm-readobj -r %t.so | FileCheck %s
10
11# CHECK: Relocations [
12# CHECK-NEXT: ]
13
14 .globl foo
15foo:
16 ret
17
18 call foo@PLT
deps/lld/test/ELF/dynamic-list-preempt.s created+76
...@@ -0,0 +1,76 @@
1# REQUIRES: x86
2
3# RUN: llvm-mc -filetype=obj -triple=x86_64-pc-linux %s -o %t.o
4# RUN: echo "{ foo; zed; };" > %t.list
5# RUN: echo "{ global: foo; bar; local: *; };" > %t.vers
6# RUN: ld.lld --hash-style=sysv -fatal-warnings -dynamic-list %t.list -version-script %t.vers -shared %t.o -o %t.so
7# RUN: llvm-readobj -r %t.so | FileCheck --check-prefix=RELOCS %s
8# RUN: llvm-readobj -dyn-symbols %t.so | FileCheck --check-prefix=DYNSYMS %s
9
10# RELOCS: Relocations [
11# RELOCS-NEXT: Section ({{.*}}) .rela.plt {
12# RELOCS-NEXT: R_X86_64_JUMP_SLOT foo 0x0
13# RELOCS-NEXT: R_X86_64_JUMP_SLOT ext 0x0
14# RELOCS-NEXT: }
15# RELOCS-NEXT: ]
16
17# DYNSYMS: DynamicSymbols [
18# DYNSYMS-NEXT: Symbol {
19# DYNSYMS-NEXT: Name: @ (0)
20# DYNSYMS-NEXT: Value: 0x0
21# DYNSYMS-NEXT: Size: 0
22# DYNSYMS-NEXT: Binding: Local
23# DYNSYMS-NEXT: Type: None
24# DYNSYMS-NEXT: Other: 0
25# DYNSYMS-NEXT: Section: Undefined
26# DYNSYMS-NEXT: }
27# DYNSYMS-NEXT: Symbol {
28# DYNSYMS-NEXT: Name: bar@
29# DYNSYMS-NEXT: Value:
30# DYNSYMS-NEXT: Size:
31# DYNSYMS-NEXT: Binding: Global
32# DYNSYMS-NEXT: Type:
33# DYNSYMS-NEXT: Other:
34# DYNSYMS-NEXT: Section:
35# DYNSYMS-NEXT: }
36# DYNSYMS-NEXT: Symbol {
37# DYNSYMS-NEXT: Name: ext@
38# DYNSYMS-NEXT: Value:
39# DYNSYMS-NEXT: Size:
40# DYNSYMS-NEXT: Binding: Global
41# DYNSYMS-NEXT: Type:
42# DYNSYMS-NEXT: Other:
43# DYNSYMS-NEXT: Section:
44# DYNSYMS-NEXT: }
45# DYNSYMS-NEXT: Symbol {
46# DYNSYMS-NEXT: Name: foo@
47# DYNSYMS-NEXT: Value:
48# DYNSYMS-NEXT: Size:
49# DYNSYMS-NEXT: Binding: Global
50# DYNSYMS-NEXT: Type:
51# DYNSYMS-NEXT: Other:
52# DYNSYMS-NEXT: Section:
53# DYNSYMS-NEXT: }
54# DYNSYMS-NEXT: ]
55
56 .globl foo
57foo:
58 ret
59
60 .globl bar
61bar:
62 ret
63
64 .globl baz
65baz:
66 ret
67
68 .globl zed
69zed:
70 ret
71
72 call foo@PLT
73 call bar@PLT
74 call baz@PLT
75 call zed@PLT
76 call ext@PLT
deps/lld/test/ELF/dynamic-list-weak-archive.s created+18
...@@ -0,0 +1,18 @@
1# REQUIRES: x86
2
3# RUN: llvm-mc -filetype=obj -triple=x86_64-pc-linux %s -o %t1.o
4# RUN: llvm-mc -filetype=obj -triple=x86_64-pc-linux %S/Inputs/dynamic-list-weak-archive.s -o %t2.o
5# RUN: rm -f %t.a
6# RUN: llvm-ar rcs %t.a %t2.o
7# RUN: echo "{ zed; };" > %t.list
8# RUN: ld.lld -shared --dynamic-list %t.list %t1.o %t.a -o %t.so
9# RUN: llvm-readobj -r %t.so | FileCheck %s
10
11# CHECK: Relocations [
12# CHECK-NEXT: Section ({{.*}}) .rela.plt {
13# CHECK-NEXT: 0x2018 R_X86_64_JUMP_SLOT foo
14# CHECK-NEXT: }
15# CHECK-NEXT: ]
16
17callq foo@PLT
18.weak foo
deps/lld/test/ELF/dynamic-list-wildcard.s created+53
...@@ -0,0 +1,53 @@
1# REQUIRES: x86
2
3# RUN: llvm-mc -filetype=obj -triple=x86_64-unknown-linux %s -o %t
4
5# RUN: echo "{ foo1*; };" > %t.list
6# RUN: ld.lld --hash-style=sysv -pie --dynamic-list %t.list %t -o %t.exe
7# RUN: llvm-readobj -dyn-symbols %t.exe | FileCheck %s
8
9# CHECK: DynamicSymbols [
10# CHECK-NEXT: Symbol {
11# CHECK-NEXT: Name: @ (0)
12# CHECK-NEXT: Value: 0x0
13# CHECK-NEXT: Size: 0
14# CHECK-NEXT: Binding: Local (0x0)
15# CHECK-NEXT: Type: None (0x0)
16# CHECK-NEXT: Other: 0
17# CHECK-NEXT: Section: Undefined (0x0)
18# CHECK-NEXT: }
19# CHECK-NEXT: Symbol {
20# CHECK-NEXT: Name: foo1@ (1)
21# CHECK-NEXT: Value: 0x1000
22# CHECK-NEXT: Size: 0
23# CHECK-NEXT: Binding: Global (0x1)
24# CHECK-NEXT: Type: None (0x0)
25# CHECK-NEXT: Other: 0
26# CHECK-NEXT: Section: .text (0x4)
27# CHECK-NEXT: }
28# CHECK-NEXT: Symbol {
29# CHECK-NEXT: Name: foo11@ (6)
30# CHECK-NEXT: Value: 0x1001
31# CHECK-NEXT: Size: 0
32# CHECK-NEXT: Binding: Global (0x1)
33# CHECK-NEXT: Type: None (0x0)
34# CHECK-NEXT: Other: 0
35# CHECK-NEXT: Section: .text (0x4)
36# CHECK-NEXT: }
37# CHECK-NEXT: ]
38
39.globl foo1
40foo1:
41 ret
42
43.globl foo11
44foo11:
45 ret
46
47.globl foo2
48foo2:
49 ret
50
51.globl _start
52_start:
53 retq
deps/lld/test/ELF/dynamic-list.s+9-13
...@@ -1,28 +1,24 @@...@@ -1,28 +1,24 @@
1## There is some bad quoting interaction between lit's internal shell, which is
2## implemented in Python, and the Cygwin implementations of the Unix utilities.
3## Avoid running these tests on Windows for now by requiring a real shell.
4
5# REQUIRES: x861# REQUIRES: x86
62
7# RUN: llvm-mc -filetype=obj -triple=x86_64-unknown-linux %p/Inputs/shared.s -o %t2.o3# RUN: llvm-mc -filetype=obj -triple=x86_64-unknown-linux %p/Inputs/shared.s -o %t2.o
8# RUN: ld.lld -shared %t2.o -soname shared -o %t2.so4# RUN: ld.lld --hash-style=sysv -shared %t2.o -soname shared -o %t2.so
9# RUN: llvm-mc -filetype=obj -triple=x86_64-unknown-linux %s -o %t5# RUN: llvm-mc -filetype=obj -triple=x86_64-unknown-linux %s -o %t
106
11## Check exporting only one symbol.7## Check exporting only one symbol.
12# RUN: echo "{ foo1; };" > %t.list8# RUN: echo "{ foo1; };" > %t.list
13# RUN: ld.lld --dynamic-list %t.list %t %t2.so -o %t.exe9# RUN: ld.lld --hash-style=sysv --dynamic-list %t.list %t %t2.so -o %t.exe
14# RUN: llvm-readobj -dyn-symbols %t.exe | FileCheck %s10# RUN: llvm-readobj -dyn-symbols %t.exe | FileCheck %s
1511
16## And now using quoted strings (the output is the same since it does12## And now using quoted strings (the output is the same since it does
17## use any wildcard character).13## use any wildcard character).
18# RUN: echo "{ \"foo1\"; };" > %t.list14# RUN: echo "{ \"foo1\"; };" > %t.list
19# RUN: ld.lld --dynamic-list %t.list %t %t2.so -o %t.exe15# RUN: ld.lld --hash-style=sysv --dynamic-list %t.list %t %t2.so -o %t.exe
20# RUN: llvm-readobj -dyn-symbols %t.exe | FileCheck %s16# RUN: llvm-readobj -dyn-symbols %t.exe | FileCheck %s
2117
22## And now using --export-dynamic-symbol.18## And now using --export-dynamic-symbol.
23# RUN: ld.lld --export-dynamic-symbol foo1 %t %t2.so -o %t.exe19# RUN: ld.lld --hash-style=sysv --export-dynamic-symbol foo1 %t %t2.so -o %t.exe
24# RUN: llvm-readobj -dyn-symbols %t.exe | FileCheck %s20# RUN: llvm-readobj -dyn-symbols %t.exe | FileCheck %s
25# RUN: ld.lld --export-dynamic-symbol=foo1 %t %t2.so -o %t.exe21# RUN: ld.lld --hash-style=sysv --export-dynamic-symbol=foo1 %t %t2.so -o %t.exe
26# RUN: llvm-readobj -dyn-symbols %t.exe | FileCheck %s22# RUN: llvm-readobj -dyn-symbols %t.exe | FileCheck %s
2723
28# CHECK: DynamicSymbols [24# CHECK: DynamicSymbols [
...@@ -49,11 +45,11 @@...@@ -49,11 +45,11 @@
4945
50## Now export all the foo1, foo2, and foo31 symbols46## Now export all the foo1, foo2, and foo31 symbols
51# RUN: echo "{ foo1; foo2; foo31; };" > %t.list47# RUN: echo "{ foo1; foo2; foo31; };" > %t.list
52# RUN: ld.lld --dynamic-list %t.list %t %t2.so -o %t.exe48# RUN: ld.lld --hash-style=sysv --dynamic-list %t.list %t %t2.so -o %t.exe
53# RUN: llvm-readobj -dyn-symbols %t.exe | FileCheck -check-prefix=CHECK2 %s49# RUN: llvm-readobj -dyn-symbols %t.exe | FileCheck -check-prefix=CHECK2 %s
54# RUN: echo "{ foo1; foo2; };" > %t1.list50# RUN: echo "{ foo1; foo2; };" > %t1.list
55# RUN: echo "{ foo31; };" > %t2.list51# RUN: echo "{ foo31; };" > %t2.list
56# RUN: ld.lld --dynamic-list %t1.list --dynamic-list %t2.list %t %t2.so -o %t.exe52# RUN: ld.lld --hash-style=sysv --dynamic-list %t1.list --dynamic-list %t2.list %t %t2.so -o %t.exe
57# RUN: llvm-readobj -dyn-symbols %t.exe | FileCheck -check-prefix=CHECK2 %s53# RUN: llvm-readobj -dyn-symbols %t.exe | FileCheck -check-prefix=CHECK2 %s
5854
59# CHECK2: DynamicSymbols [55# CHECK2: DynamicSymbols [
...@@ -99,11 +95,11 @@...@@ -99,11 +95,11 @@
99## --export-dynamic overrides --dynamic-list, i.e. --export-dynamic with an95## --export-dynamic overrides --dynamic-list, i.e. --export-dynamic with an
100## incomplete dynamic-list still exports everything.96## incomplete dynamic-list still exports everything.
101# RUN: echo "{ foo2; };" > %t.list97# RUN: echo "{ foo2; };" > %t.list
102# RUN: ld.lld --dynamic-list %t.list --export-dynamic %t %t2.so -o %t.exe98# RUN: ld.lld --hash-style=sysv --dynamic-list %t.list --export-dynamic %t %t2.so -o %t.exe
103# RUN: llvm-readobj -dyn-symbols %t.exe | FileCheck -check-prefix=CHECK3 %s99# RUN: llvm-readobj -dyn-symbols %t.exe | FileCheck -check-prefix=CHECK3 %s
104100
105## The same with --export-dynamic-symbol.101## The same with --export-dynamic-symbol.
106# RUN: ld.lld --export-dynamic-symbol=foo2 --export-dynamic %t %t2.so -o %t.exe102# RUN: ld.lld --hash-style=sysv --export-dynamic-symbol=foo2 --export-dynamic %t %t2.so -o %t.exe
107# RUN: llvm-readobj -dyn-symbols %t.exe | FileCheck -check-prefix=CHECK3 %s103# RUN: llvm-readobj -dyn-symbols %t.exe | FileCheck -check-prefix=CHECK3 %s
108104
109# CHECK3: DynamicSymbols [105# CHECK3: DynamicSymbols [
deps/lld/test/ELF/dynamic-no-rosegment.s created+15
...@@ -0,0 +1,15 @@
1# REQUIRES: x86
2# RUN: llvm-mc -filetype=obj -triple=x86_64-pc-linux %s -o %t.o
3# RUN: ld.lld -shared --no-rosegment -z rodynamic -o %t %t.o
4# RUN: llvm-readobj -dynamic-table -s %t | FileCheck %s
5
6# CHECK: DynamicSection [ (7 entries)
7# CHECK-NEXT: Tag Type Name/Value
8# CHECK-NEXT: 0x0000000000000006 SYMTAB 0x120
9# CHECK-NEXT: 0x000000000000000B SYMENT 24 (bytes)
10# CHECK-NEXT: 0x0000000000000005 STRTAB 0x1D0
11# CHECK-NEXT: 0x000000000000000A STRSZ 1 (bytes)
12# CHECK-NEXT: 0x000000006FFFFEF5 GNU_HASH 0x138
13# CHECK-NEXT: 0x0000000000000004 HASH 0x150
14# CHECK-NEXT: 0x0000000000000000 NULL 0x0
15# CHECK-NEXT: ]
deps/lld/test/ELF/dynamic-reloc-in-ro.s+3-3
...@@ -2,9 +2,9 @@...@@ -2,9 +2,9 @@
2// RUN: llvm-mc -filetype=obj -triple=x86_64-pc-linux %s -o %t.o2// RUN: llvm-mc -filetype=obj -triple=x86_64-pc-linux %s -o %t.o
3// RUN: not ld.lld %t.o -o %t.so -shared 2>&1 | FileCheck %s3// RUN: not ld.lld %t.o -o %t.so -shared 2>&1 | FileCheck %s
44
5// CHECK: can't create dynamic relocation R_X86_64_64 against local symbol in readonly segment5// CHECK: can't create dynamic relocation R_X86_64_64 against local symbol in readonly segment; recompile object files with -fPIC
6// CHECK: >>> defined in {{.*}}.o6// CHECK-NEXT: >>> defined in {{.*}}.o
7// CHECK: >>> referenced by {{.*}}.o:(.text+0x0)7// CHECK-NEXT: >>> referenced by {{.*}}.o:(.text+0x0)
88
9foo:9foo:
10.quad foo10.quad foo
deps/lld/test/ELF/dynamic-reloc.s+1-1
...@@ -2,7 +2,7 @@...@@ -2,7 +2,7 @@
2// RUN: llvm-mc -filetype=obj -triple=x86_64-unknown-linux %p/Inputs/shared.s -o %t2.o2// RUN: llvm-mc -filetype=obj -triple=x86_64-unknown-linux %p/Inputs/shared.s -o %t2.o
3// RUN: llvm-mc -filetype=obj -triple=x86_64-unknown-linux %p/Inputs/dynamic-reloc.s -o %t3.o3// RUN: llvm-mc -filetype=obj -triple=x86_64-unknown-linux %p/Inputs/dynamic-reloc.s -o %t3.o
4// RUN: ld.lld -shared %t2.o -o %t2.so4// RUN: ld.lld -shared %t2.o -o %t2.so
5// RUN: ld.lld %t.o %t3.o %t2.so -o %t5// RUN: ld.lld --hash-style=sysv %t.o %t3.o %t2.so -o %t
6// RUN: llvm-readobj -dynamic-table -r --expand-relocs -s %t | FileCheck %s6// RUN: llvm-readobj -dynamic-table -r --expand-relocs -s %t | FileCheck %s
7// REQUIRES: x867// REQUIRES: x86
88
deps/lld/test/ELF/dynstr-no-rosegment.s created+12
...@@ -0,0 +1,12 @@
1# Verify that a .dynstr in the .text segment has null byte terminators
2
3# REQUIRES: x86
4# RUN: llvm-mc -filetype=obj -triple=x86_64-pc-linux %s -o %t.o
5# RUN: ld.lld %t.o -no-rosegment -o %t.so -shared
6# RUN: llvm-objdump %t.so -s -j .dynstr | FileCheck %s
7
8# CHECK: 00666f6f 00 .foo.
9
10.globl foo
11foo:
12 ret
deps/lld/test/ELF/dynsym-no-rosegment.s created+27
...@@ -0,0 +1,27 @@
1# REQUIRES: x86
2# RUN: llvm-mc -filetype=obj -triple=x86_64-pc-linux %s -o %t.o
3# RUN: ld.lld -shared --no-rosegment -o %t %t.o
4# RUN: llvm-readobj -dyn-symbols -s %t | FileCheck %s
5
6# CHECK: DynamicSymbols [
7# CHECK-NEXT: Symbol {
8# CHECK-NEXT: Name: @ (0)
9# CHECK-NEXT: Value: 0x0
10# CHECK-NEXT: Size: 0
11# CHECK-NEXT: Binding: Local
12# CHECK-NEXT: Type: None
13# CHECK-NEXT: Other: 0
14# CHECK-NEXT: Section: Undefined
15# CHECK-NEXT: }
16# CHECK-NEXT: Symbol {
17# CHECK-NEXT: Name: undef@
18# CHECK-NEXT: Value: 0x0
19# CHECK-NEXT: Size: 0
20# CHECK-NEXT: Binding: Global
21# CHECK-NEXT: Type: None
22# CHECK-NEXT: Other: 0
23# CHECK-NEXT: Section: Undefined
24# CHECK-NEXT: }
25# CHECK-NEXT: ]
26
27callq undef@PLT
deps/lld/test/ELF/dynsym-pie.s+48-4
...@@ -3,6 +3,51 @@...@@ -3,6 +3,51 @@
3# RUN: ld.lld -pie %t -o %t.out3# RUN: ld.lld -pie %t -o %t.out
4# RUN: llvm-readobj -t -dyn-symbols %t.out | FileCheck %s4# RUN: llvm-readobj -t -dyn-symbols %t.out | FileCheck %s
55
6# CHECK: Symbols [
7# CHECK: Symbol {
8# CHECK: Name: hidden
9# CHECK-NEXT: Value: 0x1000
10# CHECK-NEXT: Size: 0
11# CHECK-NEXT: Binding: Local
12# CHECK-NEXT: Type: None
13# CHECK-NEXT: Other [
14# CHECK-NEXT: STV_HIDDEN
15# CHECK-NEXT: ]
16# CHECK-NEXT: Section: .text
17# CHECK-NEXT: }
18# CHECK: Symbol {
19# CHECK: Name: internal
20# CHECK-NEXT: Value: 0x1000
21# CHECK-NEXT: Size: 0
22# CHECK-NEXT: Binding: Local
23# CHECK-NEXT: Type: None
24# CHECK-NEXT: Other [
25# CHECK-NEXT: STV_INTERNAL
26# CHECK-NEXT: ]
27# CHECK-NEXT: Section: .text
28# CHECK-NEXT: }
29# CHECK: Symbol {
30# CHECK: Name: default
31# CHECK-NEXT: Value: 0x1000
32# CHECK-NEXT: Size: 0
33# CHECK-NEXT: Binding: Global
34# CHECK-NEXT: Type: None
35# CHECK-NEXT: Other: 0
36# CHECK-NEXT: Section: .text
37# CHECK-NEXT: }
38# CHECK: Symbol {
39# CHECK: Name: protected
40# CHECK-NEXT: Value: 0x1000
41# CHECK-NEXT: Size: 0
42# CHECK-NEXT: Binding: Global
43# CHECK-NEXT: Type: None
44# CHECK-NEXT: Other [
45# CHECK-NEXT: STV_PROTECTED
46# CHECK-NEXT: ]
47# CHECK-NEXT: Section: .text
48# CHECK-NEXT: }
49# CHECK-NEXT: ]
50
6# CHECK: DynamicSymbols [51# CHECK: DynamicSymbols [
7# CHECK-NEXT: Symbol {52# CHECK-NEXT: Symbol {
8# CHECK-NEXT: Name: @53# CHECK-NEXT: Name: @
...@@ -23,14 +68,13 @@ _start:...@@ -23,14 +68,13 @@ _start:
23default:68default:
2469
25.global protected70.global protected
71.protected protected
26protected:72protected:
2773
28.global hidden74.global hidden
75.hidden hidden
29hidden:76hidden:
3077
31.global internal78.global internal
79.internal internal
32internal:80internal:
33
34.global protected_with_hidden
35.protected
36protected_with_hidden:
deps/lld/test/ELF/edata-etext.s+1-1
...@@ -19,7 +19,7 @@...@@ -19,7 +19,7 @@
19# CHECK: SYMBOL TABLE:19# CHECK: SYMBOL TABLE:
20# CHECK-NEXT: 0000000000000000 *UND* 0000000020# CHECK-NEXT: 0000000000000000 *UND* 00000000
21# CHECK-NEXT: 0000000000202002 .data 00000000 _edata21# CHECK-NEXT: 0000000000202002 .data 00000000 _edata
22# CHECK-NEXT: 000000000020200a .data 00000000 _end22# CHECK-NEXT: 000000000020200a .bss 00000000 _end
23# CHECK-NEXT: 0000000000201001 .text 00000000 _etext23# CHECK-NEXT: 0000000000201001 .text 00000000 _etext
24# CHECK-NEXT: 0000000000201000 .text 00000000 _start24# CHECK-NEXT: 0000000000201000 .text 00000000 _start
2525
deps/lld/test/ELF/edata-no-bss.s created+18
...@@ -0,0 +1,18 @@
1# REQUIRES: x86
2# RUN: llvm-mc -filetype=obj -triple=x86_64-pc-linux %s -o %t.o
3# RUN: ld.lld %t.o -o %t --gc-sections
4# RUN: llvm-objdump -t -section-headers %t | FileCheck %s
5
6# CHECK: .data 00000008 0000000000202000 DATA
7
8# CHECK: 0000000000202008 .data 00000000 _edata
9
10.text
11.globl _start
12_start:
13.long .data - .
14
15.data
16.quad 0
17
18.globl _edata
deps/lld/test/ELF/eh-align-cie.s+1-1
...@@ -31,7 +31,7 @@ bar:...@@ -31,7 +31,7 @@ bar:
31// OBJ-NEXT: )31// OBJ-NEXT: )
3232
3333
34// RUN: ld.lld %t.o -o %t -shared34// RUN: ld.lld --hash-style=sysv %t.o -o %t -shared
35// RUN: llvm-readobj -s -section-data %t | FileCheck %s35// RUN: llvm-readobj -s -section-data %t | FileCheck %s
3636
37// Check that the size of the CIE was changed to (0x1C + 4) and the FDE one was37// Check that the size of the CIE was changed to (0x1C + 4) and the FDE one was
deps/lld/test/ELF/eh-frame-hdr-augmentation.s+1-1
...@@ -1,6 +1,6 @@...@@ -1,6 +1,6 @@
1// REQUIRES: x861// REQUIRES: x86
2// RUN: llvm-mc -filetype=obj -triple=x86_64-pc-linux %s -o %t.o2// RUN: llvm-mc -filetype=obj -triple=x86_64-pc-linux %s -o %t.o
3// RUN: ld.lld --eh-frame-hdr %t.o -o %t -shared3// RUN: ld.lld --hash-style=sysv --eh-frame-hdr %t.o -o %t -shared
4// RUN: llvm-objdump --dwarf=frames %t | FileCheck %s4// RUN: llvm-objdump --dwarf=frames %t | FileCheck %s
55
6// CHECK: .eh_frame contents:6// CHECK: .eh_frame contents:
deps/lld/test/ELF/eh-frame-hdr-icf-fde.s created+95
...@@ -0,0 +1,95 @@
1# REQUIRES: x86
2
3## Testcase checks that we correctly deduplicate FDEs when ICF
4## merges two sections.
5
6# RUN: llvm-mc -filetype=obj -triple=x86_64-unknown-linux %s -o %t
7# RUN: ld.lld %t -o %t2 --icf=all --eh-frame-hdr
8# RUN: llvm-readobj -r %t | FileCheck %s --check-prefix=OBJ
9# RUN: llvm-readobj -s -section-data %t2 | FileCheck %s
10
11# OBJ: Relocations [
12# OBJ-NEXT: Section {{.*}} .rela.eh_frame {
13# OBJ-NEXT: 0x20 R_X86_64_PC32 .text.f1 0x0
14# OBJ-NEXT: 0x34 R_X86_64_PC32 .text.f1 0x2
15# OBJ-NEXT: 0x48 R_X86_64_PC32 .text.f2 0x0
16# OBJ-NEXT: 0x5C R_X86_64_PC32 .text.f2 0x2
17# OBJ-NEXT: }
18# OBJ-NEXT: ]
19
20# CHECK: Section {
21# CHECK: Index: 1
22# CHECK: Name: .eh_frame_hdr
23# CHECK-NEXT: Type: SHT_PROGBITS
24# CHECK-NEXT: Flags [
25# CHECK-NEXT: SHF_ALLOC
26# CHECK-NEXT: ]
27# CHECK-NEXT: Address: 0x200158
28# CHECK-NEXT: Offset: 0x158
29# CHECK-NEXT: Size: 28
30# CHECK-NEXT: Link: 0
31# CHECK-NEXT: Info: 0
32# CHECK-NEXT: AddressAlignment:
33# CHECK-NEXT: EntrySize: 0
34# CHECK-NEXT: SectionData (
35# CHECK-NEXT: 0000: 011B033B 1C000000 02000000 A80E0000
36## ^ ^-- FDE(1) PC
37## ^-- Number of FDEs
38# CHECK-NEXT: 0010: 38000000 AA0E0000 50000000
39## ^-- FDE(2) PC
40# CHECK-NEXT: )
41# CHECK-NEXT: }
42## FDE(1) == 0x201000 - .eh_frame_hdr(0x200158) = 0xEA8
43## FDE(2) == 0x201000 - .eh_frame_hdr(0x200158) + 2(relocation addend) = 0xEAA
44
45## Check .eh_frame contains CIE and two FDEs remaining after ICF.
46# CHECK-NEXT: Section {
47# CHECK-NEXT: Index: 2
48# CHECK-NEXT: Name: .eh_frame
49# CHECK-NEXT: Type: SHT_PROGBITS
50# CHECK-NEXT: Flags [
51# CHECK-NEXT: SHF_ALLOC
52# CHECK-NEXT: ]
53# CHECK-NEXT: Address: 0x200178
54# CHECK-NEXT: Offset: 0x178
55# CHECK-NEXT: Size: 72
56# CHECK-NEXT: Link: 0
57# CHECK-NEXT: Info: 0
58# CHECK-NEXT: AddressAlignment: 8
59# CHECK-NEXT: EntrySize: 0
60# CHECK-NEXT: SectionData (
61# CHECK-NEXT: 0000: 14000000 00000000 017A5200 01781001
62# CHECK-NEXT: 0010: 1B0C0708 90010000 14000000 1C000000
63# CHECK-NEXT: 0020: 680E0000 01000000 00000000 00000000
64# CHECK-NEXT: 0030: 14000000 34000000 520E0000 01000000
65# CHECK-NEXT: 0040: 00000000 00000000
66# CHECK-NEXT: )
67# CHECK-NEXT: }
68
69# CHECK: Section {
70# CHECK: Index:
71# CHECK: Name: .text
72# CHECK-NEXT: Type: SHT_PROGBITS
73# CHECK-NEXT: Flags [
74# CHECK-NEXT: SHF_ALLOC
75# CHECK-NEXT: SHF_EXECINSTR
76# CHECK-NEXT: ]
77# CHECK-NEXT: Address: 0x201000
78
79.section .text.f1, "ax"
80.cfi_startproc
81nop
82.cfi_endproc
83nop
84.cfi_startproc
85ret
86.cfi_endproc
87
88.section .text.f2, "ax"
89.cfi_startproc
90nop
91.cfi_endproc
92nop
93.cfi_startproc
94ret
95.cfi_endproc
deps/lld/test/ELF/eh-frame-hdr-icf.s+8-7
...@@ -2,17 +2,18 @@...@@ -2,17 +2,18 @@
22
3# RUN: llvm-mc -filetype=obj -triple=x86_64-unknown-linux %s -o %t3# RUN: llvm-mc -filetype=obj -triple=x86_64-unknown-linux %s -o %t
4# RUN: ld.lld %t -o %t2 --icf=all --eh-frame-hdr4# RUN: ld.lld %t -o %t2 --icf=all --eh-frame-hdr
5# RUN: llvm-objdump -s %t2 | FileCheck %s5# RUN: llvm-objdump -s -section-headers %t2 | FileCheck %s
6
7## Check .eh_frame_hdr contains single FDE and no garbage data at tail.
8# CHECK: Sections:
9# CHECK: Idx Name Size
10# CHECK: .eh_frame_hdr 00000014
611
7# CHECK: Contents of section .eh_frame_hdr:12# CHECK: Contents of section .eh_frame_hdr:
8# CHECK-NEXT: 200158 011b033b 1c000000 01000000 a80e000013# CHECK-NEXT: 200158 011b033b 14000000 01000000
9# ^ FDE count14# ^ FDE count
10# CHECK-NEXT: 200168 38000000 00000000 00000000
11# ^ FDE for f2
1215
13.globl _start, f1, f216.globl f1, f2
14_start:
15 ret
1617
17.section .text.f1, "ax"18.section .text.f1, "ax"
18f1:19f1:
deps/lld/test/ELF/eh-frame-hdr.s+10-2
...@@ -1,9 +1,17 @@...@@ -1,9 +1,17 @@
1// REQUIRES: x861// REQUIRES: x86
2// RUN: llvm-mc -filetype=obj -triple=x86_64-pc-linux %s -o %t.o2// RUN: llvm-mc -filetype=obj -triple=x86_64-pc-linux %s -o %t.o
3
3// RUN: ld.lld %t.o -o %t4// RUN: ld.lld %t.o -o %t
4// RUN: llvm-readobj -file-headers -s -section-data -program-headers -symbols %t | FileCheck %s --check-prefix=NOHDR5// RUN: llvm-readobj -file-headers -s -section-data -program-headers -symbols %t \
6// RUN: | FileCheck %s --check-prefix=NOHDR
7
8// RUN: ld.lld -eh-frame-hdr -no-eh-frame-hdr %t.o -o %t
9// RUN: llvm-readobj -file-headers -s -section-data -program-headers -symbols %t \
10// RUN: | FileCheck %s --check-prefix=NOHDR
11
5// RUN: ld.lld --eh-frame-hdr %t.o -o %t12// RUN: ld.lld --eh-frame-hdr %t.o -o %t
6// RUN: llvm-readobj -file-headers -s -section-data -program-headers -symbols %t | FileCheck %s --check-prefix=HDR13// RUN: llvm-readobj -file-headers -s -section-data -program-headers -symbols %t \
14// RUN: | FileCheck %s --check-prefix=HDR
7// RUN: llvm-objdump -d %t | FileCheck %s --check-prefix=HDRDISASM15// RUN: llvm-objdump -d %t | FileCheck %s --check-prefix=HDRDISASM
816
9.section foo,"ax",@progbits17.section foo,"ax",@progbits
deps/lld/test/ELF/eh-frame-merge.s+1-1
...@@ -1,6 +1,6 @@...@@ -1,6 +1,6 @@
1// REQUIRES: x861// REQUIRES: x86
2// RUN: llvm-mc -filetype=obj -triple=x86_64-pc-linux %s -o %t.o2// RUN: llvm-mc -filetype=obj -triple=x86_64-pc-linux %s -o %t.o
3// RUN: ld.lld %t.o %t.o -o %t -shared3// RUN: ld.lld --hash-style=sysv %t.o %t.o -o %t -shared
4// RUN: llvm-readobj -s -section-data %t | FileCheck %s4// RUN: llvm-readobj -s -section-data %t | FileCheck %s
55
6 .section foo,"ax",@progbits6 .section foo,"ax",@progbits
deps/lld/test/ELF/eh-frame-padding-no-rosegment.s+1-1
...@@ -31,7 +31,7 @@ bar:...@@ -31,7 +31,7 @@ bar:
31// OBJ-NEXT: 0020: 20000000 00000000 00000000 0000000031// OBJ-NEXT: 0020: 20000000 00000000 00000000 00000000
32// OBJ-NEXT: )32// OBJ-NEXT: )
3333
34// RUN: ld.lld %t.o -no-rosegment -o %t -shared34// RUN: ld.lld --hash-style=sysv %t.o -no-rosegment -o %t -shared
3535
36// Check that .eh_frame is in the same segment as .text36// Check that .eh_frame is in the same segment as .text
37// RUN: llvm-readobj -l --elf-output-style=GNU %t | FileCheck --check-prefix=PHDR %s37// RUN: llvm-readobj -l --elf-output-style=GNU %t | FileCheck --check-prefix=PHDR %s
deps/lld/test/ELF/eh-frame.s created+12
...@@ -0,0 +1,12 @@
1// REQUIRES: x86
2// RUN: llvm-mc -filetype=obj -triple=x86_64-pc-linux %s -o %t1.o
3// RUN: llvm-mc -filetype=obj -triple=x86_64-pc-linux %S/Inputs/eh-frame.s -o %t2.o
4// RUN: ld.lld %t1.o %t2.o -o %t
5// RUN: llvm-dwarfdump -eh-frame %t | FileCheck %s
6
7// CHECK: DW_CFA_def_cfa_offset: +64
8// CHECK: DW_CFA_def_cfa_offset: +32
9
10.cfi_startproc
11.cfi_def_cfa_offset 64
12.cfi_endproc
deps/lld/test/ELF/emit-relocs-gc.s created+30
...@@ -0,0 +1,30 @@
1# REQUIRES: x86
2# RUN: llvm-mc -filetype=obj -triple=x86_64-unknown-linux %s -o %t.o
3
4## Show that we emit .rela.bar and .rela.text when GC is disabled.
5# RUN: ld.lld --emit-relocs %t.o -o %t
6# RUN: llvm-objdump %t -section-headers | FileCheck %s --check-prefix=NOGC
7# NOGC: .rela.text
8# NOGC: .rela.bar
9
10## GC collects .bar section and we exclude .rela.bar from output. We keep
11## .rela.text because we keep .text.
12# RUN: ld.lld --gc-sections --emit-relocs --print-gc-sections %t.o -o %t \
13# RUN: | FileCheck --check-prefix=MSG %s
14# MSG: removing unused section from '.bar' in file
15# MSG: removing unused section from '.rela.bar' in file
16# RUN: llvm-objdump %t -section-headers | FileCheck %s --check-prefix=GC
17# GC-NOT: rela.bar
18# GC: rela.text
19# GC-NOT: rela.bar
20
21.section .bar,"a"
22.quad .bar
23
24.text
25relocs:
26.quad _start
27
28.global _start
29_start:
30 nop
deps/lld/test/ELF/emit-relocs-merge.s+1-1
...@@ -8,7 +8,7 @@...@@ -8,7 +8,7 @@
8# CHECK-NEXT: 0x1000 R_X86_64_64 zed 0x08# CHECK-NEXT: 0x1000 R_X86_64_64 zed 0x0
9# CHECK-NEXT: 0x1008 R_X86_64_64 zed 0x09# CHECK-NEXT: 0x1008 R_X86_64_64 zed 0x0
10# CHECK-NEXT: }10# CHECK-NEXT: }
11# CHECK-NEXT: Section ({{.*}}) .rela.data.foo {11# CHECK-NEXT: Section ({{.*}}) .rela.data {
12# CHECK-NEXT: 0x1000 R_X86_64_64 zed 0x012# CHECK-NEXT: 0x1000 R_X86_64_64 zed 0x0
13# CHECK-NEXT: 0x1008 R_X86_64_64 zed 0x013# CHECK-NEXT: 0x1008 R_X86_64_64 zed 0x0
14# CHECK-NEXT: }14# CHECK-NEXT: }
deps/lld/test/ELF/emit-relocs-mergeable-i386.s created+66
...@@ -0,0 +1,66 @@
1# REQUIRES: x86
2# RUN: llvm-mc -filetype=obj -triple=i686-pc-linux %s -o %t1
3# RUN: ld.lld --emit-relocs %t1 -o %t2
4# RUN: llvm-readobj -sections -section-data %t2 | FileCheck %s
5
6## Check lf we produce proper relocations when doing merging of SHF_MERGE sections.
7
8## Check addends of relocations are: 0x0, 0x8, 0x8, 0x4
9# CHECK: Section {
10# CHECK: Index:
11# CHECK: Name: .foo
12# CHECK-NEXT: Type: SHT_PROGBITS
13# CHECK-NEXT: Flags [
14# CHECK-NEXT: SHF_ALLOC
15# CHECK-NEXT: SHF_EXECINSTR
16# CHECK-NEXT: ]
17# CHECK-NEXT: Address:
18# CHECK-NEXT: Offset:
19# CHECK-NEXT: Size:
20# CHECK-NEXT: Link:
21# CHECK-NEXT: Info:
22# CHECK-NEXT: AddressAlignment:
23# CHECK-NEXT: EntrySize:
24# CHECK-NEXT: SectionData (
25# CHECK-NEXT: 0000: 00000000 08000000 08000000 04000000
26# CHECK-NEXT: )
27# CHECK-NEXT: }
28
29## Check that offsets for AAA is 0x0, for BBB is 0x8 and CCC has offset 0x4.
30# CHECK: Section {
31# CHECK: Index:
32# CHECK: Name: .strings
33# CHECK-NEXT: Type: SHT_PROGBITS
34# CHECK-NEXT: Flags [
35# CHECK-NEXT: SHF_MERGE
36# CHECK-NEXT: SHF_STRINGS
37# CHECK-NEXT: ]
38# CHECK-NEXT: Address:
39# CHECK-NEXT: Offset:
40# CHECK-NEXT: Size:
41# CHECK-NEXT: Link:
42# CHECK-NEXT: Info:
43# CHECK-NEXT: AddressAlignment:
44# CHECK-NEXT: EntrySize:
45# CHECK-NEXT: SectionData (
46# CHECK-NEXT: |AAA.CCC.BBB.|
47# CHECK-NEXT: )
48# CHECK-NEXT: }
49
50.section .strings,"MS",@progbits,1,unique,10
51.Linfo_string0:
52 .asciz "AAA"
53.Linfo_string1:
54 .asciz "BBB"
55
56.section .strings,"MS",@progbits,1,unique,20
57.Linfo_string2:
58 .asciz "BBB"
59.Linfo_string3:
60 .asciz "CCC"
61
62.section .foo,"ax",@progbits
63.long .Linfo_string0
64.long .Linfo_string1
65.long .Linfo_string2
66.long .Linfo_string3
deps/lld/test/ELF/emit-relocs-mergeable.s created+53
...@@ -0,0 +1,53 @@
1# REQUIRES: x86
2# RUN: llvm-mc -filetype=obj -triple=x86_64-unknown-linux %s -o %t1
3# RUN: ld.lld --emit-relocs %t1 -o %t2
4# RUN: llvm-readobj -sections -section-data -r %t2 | FileCheck %s
5
6## Check if we produce proper relocations when doing merging of SHF_MERGE sections.
7
8# CHECK: Section {
9# CHECK: Index:
10# CHECK: Name: .strings
11# CHECK-NEXT: Type: SHT_PROGBITS
12# CHECK-NEXT: Flags [
13# CHECK-NEXT: SHF_MERGE
14# CHECK-NEXT: SHF_STRINGS
15# CHECK-NEXT: ]
16# CHECK-NEXT: Address:
17# CHECK-NEXT: Offset:
18# CHECK-NEXT: Size: 12
19# CHECK-NEXT: Link:
20# CHECK-NEXT: Info:
21# CHECK-NEXT: AddressAlignment:
22# CHECK-NEXT: EntrySize:
23# CHECK-NEXT: SectionData (
24# CHECK-NEXT: 0000: 41414100 43434300 42424200 |AAA.CCC.BBB.|
25# CHECK-NEXT: )
26# CHECK-NEXT: }
27
28# CHECK: Relocations [
29# CHECK-NEXT: Section {{.*}} .rela.foo {
30# CHECK-NEXT: 0x201000 R_X86_64_64 .strings 0x0
31# CHECK-NEXT: 0x201008 R_X86_64_64 .strings 0x8
32# CHECK-NEXT: 0x201010 R_X86_64_64 .strings 0x8
33# CHECK-NEXT: 0x201018 R_X86_64_64 .strings 0x4
34# CHECK-NEXT: }
35# CHECK-NEXT: ]
36
37.section .strings,"MS",@progbits,1,unique,10
38.Linfo_string0:
39 .asciz "AAA"
40.Linfo_string1:
41 .asciz "BBB"
42
43.section .strings,"MS",@progbits,1,unique,20
44.Linfo_string2:
45 .asciz "BBB"
46.Linfo_string3:
47 .asciz "CCC"
48
49.section .foo,"ax",@progbits
50.quad .Linfo_string0
51.quad .Linfo_string1
52.quad .Linfo_string2
53.quad .Linfo_string3
deps/lld/test/ELF/emit-relocs-shared.s+1-1
...@@ -1,6 +1,6 @@...@@ -1,6 +1,6 @@
1# REQUIRES: x861# REQUIRES: x86
2# RUN: llvm-mc -filetype=obj -triple=x86_64-pc-linux %s -o %t.o2# RUN: llvm-mc -filetype=obj -triple=x86_64-pc-linux %s -o %t.o
3# RUN: ld.lld --emit-relocs %t.o -o %t.so -shared3# RUN: ld.lld --hash-style=sysv --emit-relocs %t.o -o %t.so -shared
4# RUN: llvm-readobj -r %t.so | FileCheck %s4# RUN: llvm-readobj -r %t.so | FileCheck %s
55
6.data6.data
deps/lld/test/ELF/emit-relocs.s+11-2
...@@ -64,6 +64,15 @@...@@ -64,6 +64,15 @@
64# CHECK-NEXT: Section: .text64# CHECK-NEXT: Section: .text
65# CHECK-NEXT: }65# CHECK-NEXT: }
66# CHECK-NEXT: Symbol {66# CHECK-NEXT: Symbol {
67# CHECK-NEXT: Name:
68# CHECK-NEXT: Value: 0x0
69# CHECK-NEXT: Size: 0
70# CHECK-NEXT: Binding: Local
71# CHECK-NEXT: Type: Section
72# CHECK-NEXT: Other: 0
73# CHECK-NEXT: Section: .comment
74# CHECK-NEXT: }
75# CHECK-NEXT: Symbol {
67# CHECK-NEXT: Name: fn76# CHECK-NEXT: Name: fn
68# CHECK-NEXT: Value: 0x20100077# CHECK-NEXT: Value: 0x201000
69# CHECK-NEXT: Size: 078# CHECK-NEXT: Size: 0
...@@ -83,7 +92,7 @@...@@ -83,7 +92,7 @@
83# CHECK-NEXT: }92# CHECK-NEXT: }
84# CHECK-NEXT: ]93# CHECK-NEXT: ]
8594
86.section .text,"ax",@progbits,unique,095.section .text.fn,"ax",@progbits,unique,0
87.globl fn96.globl fn
88.type fn,@function97.type fn,@function
89fn:98fn:
...@@ -94,7 +103,7 @@ bar:...@@ -94,7 +103,7 @@ bar:
94 callq fn@PLT103 callq fn@PLT
95 nop104 nop
96105
97.section .text,"ax",@progbits,unique,1106.section .text.fn2,"ax",@progbits,unique,1
98.globl fn2107.globl fn2
99.type fn2,@function108.type fn2,@function
100fn2:109fn2:
deps/lld/test/ELF/exclude-libs.s+6
...@@ -22,6 +22,12 @@...@@ -22,6 +22,12 @@
22// RUN: ld.lld -shared %t.o %t.dir/exc.a -o %t.exe --exclude-libs=ALL22// RUN: ld.lld -shared %t.o %t.dir/exc.a -o %t.exe --exclude-libs=ALL
23// RUN: llvm-readobj -dyn-symbols %t.exe | FileCheck --check-prefix=EXCLUDE %s23// RUN: llvm-readobj -dyn-symbols %t.exe | FileCheck --check-prefix=EXCLUDE %s
2424
25// RUN: ld.lld -shared --whole-archive %t.o %t.dir/exc.a -o %t.exe --exclude-libs foo,bar,exc.a
26// RUN: llvm-readobj -dyn-symbols %t.exe | FileCheck --check-prefix=EXCLUDE %s
27
28// RUN: ld.lld -shared --whole-archive %t.o %t.dir/exc.a -o %t.exe --exclude-libs=ALL
29// RUN: llvm-readobj -dyn-symbols %t.exe | FileCheck --check-prefix=EXCLUDE %s
30
25// DEFAULT: Name: fn31// DEFAULT: Name: fn
26// EXCLUDE-NOT: Name: fn32// EXCLUDE-NOT: Name: fn
2733
deps/lld/test/ELF/executable-undefined-ignoreall.s created+13
...@@ -0,0 +1,13 @@
1# REQUIRES: x86
2# RUN: llvm-mc -filetype=obj -triple=x86_64-unknown-linux %s -o %t
3# RUN: ld.lld %t -o %tout --unresolved-symbols=ignore-all -pie
4# RUN: llvm-readobj -r %tout | FileCheck %s
5
6# CHECK: Relocations [
7# CHECK-NEXT: Section ({{.*}}) .rela.plt {
8# CHECK-NEXT: 0x2018 R_X86_64_JUMP_SLOT foo 0x0
9# CHECK-NEXT: }
10# CHECK-NEXT: ]
11
12_start:
13callq foo@PLT
deps/lld/test/ELF/executable-undefined-protected-ignoreall.s created+8
...@@ -0,0 +1,8 @@
1# REQUIRES: x86
2# RUN: llvm-mc -filetype=obj -triple=x86_64-unknown-linux %s -o %t
3# RUN: not ld.lld %t -o %tout --unresolved-symbols=ignore-all -pie 2>&1 | FileCheck %s
4# CHECK: error: undefined symbol: foo
5
6.protected foo
7_start:
8callq foo@PLT
deps/lld/test/ELF/file-access.s created+13
...@@ -0,0 +1,13 @@
1# REQUIRES: x86, shell
2
3# RUN: llvm-mc -filetype=obj -triple=x86_64-unknown-linux %s -o %t.o
4# RUN: ld.lld -r %t.o -o %t1.o
5# RUN: [ ! -x %t1.o ]
6# RUN: ld.lld -shared %t.o -o %t2.so
7# RUN: [ -x %t2.so ]
8# RUN: ld.lld %t.o -o %t3
9# RUN: [ -x %t3 ]
10
11.global _start
12_start:
13 nop
deps/lld/test/ELF/fill-trap.s created+25
...@@ -0,0 +1,25 @@
1# REQUIRES: x86
2
3# RUN: llvm-mc -filetype=obj -triple=x86_64-unknown-linux %s -o %t
4# RUN: ld.lld %t -o %t2
5# RUN: llvm-readobj -program-headers %t2 | FileCheck %s
6# RUN: od -Ax -x -N16 -j0x1ff0 %t2 | FileCheck %s -check-prefix=FILL
7
8# CHECK: ProgramHeader {
9# CHECK: Type: PT_LOAD
10# CHECK: Offset: 0x1000
11# CHECK-NEXT: VirtualAddress:
12# CHECK-NEXT: PhysicalAddress:
13# CHECK-NEXT: FileSize: 4096
14# CHECK-NEXT: MemSize:
15# CHECK-NEXT: Flags [
16# CHECK-NEXT: PF_R
17# CHECK-NEXT: PF_X
18# CHECK-NEXT: ]
19
20## Check that executable page is filled with traps at its end.
21# FILL: 001ff0 cccc cccc cccc cccc cccc cccc cccc cccc
22
23.globl _start
24_start:
25 nop
deps/lld/test/ELF/filter.s+5-1
...@@ -2,10 +2,14 @@...@@ -2,10 +2,14 @@
2# RUN: ld.lld %t.o -shared -F foo.so -F boo.so -o %t12# RUN: ld.lld %t.o -shared -F foo.so -F boo.so -o %t1
3# RUN: llvm-readobj --dynamic-table %t1 | FileCheck %s3# RUN: llvm-readobj --dynamic-table %t1 | FileCheck %s
44
5# Test alias.5# Test alias #1.
6# RUN: ld.lld %t.o -shared --filter=foo.so --filter=boo.so -o %t26# RUN: ld.lld %t.o -shared --filter=foo.so --filter=boo.so -o %t2
7# RUN: llvm-readobj --dynamic-table %t2 | FileCheck %s7# RUN: llvm-readobj --dynamic-table %t2 | FileCheck %s
88
9# Test alias #2.
10# RUN: ld.lld %t.o -shared --filter foo.so --filter boo.so -o %t3
11# RUN: llvm-readobj --dynamic-table %t3 | FileCheck %s
12
9# CHECK: DynamicSection [13# CHECK: DynamicSection [
10# CHECK-NEXT: Tag Type Name/Value14# CHECK-NEXT: Tag Type Name/Value
11# CHECK-NEXT: 0x000000007FFFFFFF FILTER Filter library: [foo.so]15# CHECK-NEXT: 0x000000007FFFFFFF FILTER Filter library: [foo.so]
deps/lld/test/ELF/format-binary-non-ascii.s created+15
...@@ -0,0 +1,15 @@
1# REQUIRES: x86
2# RUN: llvm-mc -filetype=obj -triple=x86_64-unknown-linux %s -o %t£.o
3
4# RUN: ld.lld -o %t.elf %t£.o --format=binary %t£.o
5# RUN: llvm-readobj -symbols %t.elf | FileCheck %s
6
7# CHECK: Name: _binary_{{[a-zA-Z0-9_]+}}test_ELF_Output_format_binary_non_ascii_s_tmp___o_start
8# CHECK: Name: _binary_{{[a-zA-Z0-9_]+}}test_ELF_Output_format_binary_non_ascii_s_tmp___o_end
9# CHECK: Name: _binary_{{[a-zA-Z0-9_]+}}test_ELF_Output_format_binary_non_ascii_s_tmp___o_size
10
11.text
12.align 4
13.globl _start
14_start:
15 nop
deps/lld/test/ELF/gc-collect-undefined.s created+19
...@@ -0,0 +1,19 @@
1# REQUIRES: x86
2# RUN: llvm-mc -filetype=obj -triple=x86_64-unknown-linux %s -o %t
3# RUN: ld.lld %t -o %tout --gc-sections -shared
4# RUN: llvm-nm -D %tout | FileCheck %s
5
6# CHECK-NOT: qux
7# CHECK: bar
8# CHECK-NOT: qux
9
10 .global foo,bar,qux
11 .local baz
12
13 .section .data.foo,"aw",%progbits
14foo:
15 .dc.a bar
16
17 .section .bata.baz,"aw",%progbits
18baz:
19 .dc.a qux
deps/lld/test/ELF/gc-merge-local-sym.s+1-1
...@@ -15,7 +15,7 @@...@@ -15,7 +15,7 @@
15// CHECK-NEXT: Link: 015// CHECK-NEXT: Link: 0
16// CHECK-NEXT: Info: 016// CHECK-NEXT: Info: 0
17// CHECK-NEXT: AddressAlignment: 117// CHECK-NEXT: AddressAlignment: 1
18// CHECK-NEXT: EntrySize: 018// CHECK-NEXT: EntrySize: 1
19// CHECK-NEXT: SectionData (19// CHECK-NEXT: SectionData (
20// CHECK-NEXT: 0000: 61626300 |abc.|20// CHECK-NEXT: 0000: 61626300 |abc.|
21// CHECK-NEXT: )21// CHECK-NEXT: )
deps/lld/test/ELF/gc-sections-linker-defined-symbol.s created+18
...@@ -0,0 +1,18 @@
1# REQUIRES: x86
2
3# RUN: llvm-mc -filetype=obj -triple=x86_64-pc-linux %s -o %t.o
4# RUN: ld.lld %t.o -o %t.so --gc-sections -shared
5# RUN: llvm-readobj --dyn-symbols %t.so | FileCheck %s
6
7# CHECK: Name: _end@
8# CHECK-NEXT: Value:
9# CHECK-NEXT: Size:
10# CHECK-NEXT: Binding: Global
11# CHECK-NEXT: Type: None
12# CHECK-NEXT: Other:
13# CHECK-NEXT: Section: .dynamic
14
15 .data
16 .globl g
17 g:
18 .quad _end
deps/lld/test/ELF/gc-sections-merge-addend.s+1-1
...@@ -16,7 +16,7 @@...@@ -16,7 +16,7 @@
16// CHECK-NEXT: Link: 016// CHECK-NEXT: Link: 0
17// CHECK-NEXT: Info: 017// CHECK-NEXT: Info: 0
18// CHECK-NEXT: AddressAlignment: 118// CHECK-NEXT: AddressAlignment: 1
19// CHECK-NEXT: EntrySize: 019// CHECK-NEXT: EntrySize: 1
20// CHECK-NEXT: SectionData (20// CHECK-NEXT: SectionData (
21// CHECK-NEXT: 0000: 62617200 |bar.|21// CHECK-NEXT: 0000: 62617200 |bar.|
22// CHECK-NEXT: )22// CHECK-NEXT: )
deps/lld/test/ELF/gc-sections-merge-implicit-addend.s+1-1
...@@ -16,7 +16,7 @@...@@ -16,7 +16,7 @@
16// CHECK-NEXT: Link: 016// CHECK-NEXT: Link: 0
17// CHECK-NEXT: Info: 017// CHECK-NEXT: Info: 0
18// CHECK-NEXT: AddressAlignment: 118// CHECK-NEXT: AddressAlignment: 1
19// CHECK-NEXT: EntrySize: 019// CHECK-NEXT: EntrySize: 1
20// CHECK-NEXT: SectionData (20// CHECK-NEXT: SectionData (
21// CHECK-NEXT: 0000: 62617200 |bar.|21// CHECK-NEXT: 0000: 62617200 |bar.|
22// CHECK-NEXT: )22// CHECK-NEXT: )
deps/lld/test/ELF/gc-sections-merge.s+2-2
...@@ -18,7 +18,7 @@...@@ -18,7 +18,7 @@
18// CHECK-NEXT: Link: 018// CHECK-NEXT: Link: 0
19// CHECK-NEXT: Info: 019// CHECK-NEXT: Info: 0
20// CHECK-NEXT: AddressAlignment: 120// CHECK-NEXT: AddressAlignment: 1
21// CHECK-NEXT: EntrySize: 021// CHECK-NEXT: EntrySize: 1
22// CHECK-NEXT: SectionData (22// CHECK-NEXT: SectionData (
23// CHECK-NEXT: 0000: 666F6F00 62617200 |foo.bar.|23// CHECK-NEXT: 0000: 666F6F00 62617200 |foo.bar.|
24// CHECK-NEXT: )24// CHECK-NEXT: )
...@@ -36,7 +36,7 @@...@@ -36,7 +36,7 @@
36// GC-NEXT: Link: 036// GC-NEXT: Link: 0
37// GC-NEXT: Info: 037// GC-NEXT: Info: 0
38// GC-NEXT: AddressAlignment: 138// GC-NEXT: AddressAlignment: 1
39// GC-NEXT: EntrySize: 039// GC-NEXT: EntrySize: 1
40// GC-NEXT: SectionData (40// GC-NEXT: SectionData (
41// GC-NEXT: 0000: 666F6F00 |foo.|41// GC-NEXT: 0000: 666F6F00 |foo.|
42// GC-NEXT: )42// GC-NEXT: )
deps/lld/test/ELF/gc-sections-print.s+6
...@@ -5,6 +5,12 @@...@@ -5,6 +5,12 @@
5# PRINT: removing unused section from '.text.x' in file5# PRINT: removing unused section from '.text.x' in file
6# PRINT-NEXT: removing unused section from '.text.y' in file6# PRINT-NEXT: removing unused section from '.text.y' in file
77
8# RUN: ld.lld %t --gc-sections --print-gc-sections --no-print-gc-sections -o %t2 >& %t.log
9# RUN: echo >> %t.log
10# RUN: FileCheck -check-prefix=NOPRINT %s < %t.log
11
12# NOPRINT-NOT: removing
13
8.globl _start14.globl _start
9.protected a, x, y15.protected a, x, y
10_start:16_start:
deps/lld/test/ELF/gc-sections-shared.s+89-4
...@@ -1,12 +1,18 @@...@@ -1,12 +1,18 @@
1# REQUIRES: x861# REQUIRES: x86
2# RUN: llvm-mc -filetype=obj -triple=x86_64-unknown-linux %p/Inputs/shared.s -o %t2.o2# RUN: llvm-mc -filetype=obj -triple=x86_64-unknown-linux %p/Inputs/shared.s -o %t2.o
3# RUN: llvm-mc -filetype=obj -triple=x86_64-unknown-linux %p/Inputs/gc-sections-shared.s -o %t3.o
4# RUN: llvm-mc -filetype=obj -triple=x86_64-unknown-linux %p/Inputs/gc-sections-shared2.s -o %t4.o
3# RUN: ld.lld -shared %t2.o -o %t2.so5# RUN: ld.lld -shared %t2.o -o %t2.so
6# RUN: ld.lld -shared %t3.o -o %t3.so
7# RUN: ld.lld -shared %t4.o -o %t4.so
4# RUN: llvm-mc -filetype=obj -triple=x86_64-unknown-linux %s -o %t.o8# RUN: llvm-mc -filetype=obj -triple=x86_64-unknown-linux %s -o %t.o
5# RUN: ld.lld --gc-sections --export-dynamic-symbol foo -o %t %t.o --as-needed %t2.so9# RUN: ld.lld --gc-sections --export-dynamic-symbol foo -o %t %t.o --as-needed %t2.so %t3.so %t4.so
6# RUN: llvm-readobj --dynamic-table --dyn-symbols %t | FileCheck %s10# RUN: llvm-readobj --dynamic-table --dyn-symbols %t | FileCheck %s
711
8# This test the property that we have a needed line for every undefined.12# This test the property that we have a needed line for every undefined.
9# It would also be OK to drop bar2 and the need for the .so13# It would also be OK to keep bar2 and the need for %t2.so
14# At the same time, weak symbols should not cause adding DT_NEEDED;
15# this case is checked with symbol qux and %t4.so.
1016
11# CHECK: DynamicSymbols [17# CHECK: DynamicSymbols [
12# CHECK-NEXT: Symbol {18# CHECK-NEXT: Symbol {
...@@ -19,7 +25,16 @@...@@ -19,7 +25,16 @@
19# CHECK-NEXT: Section: Undefined (0x0)25# CHECK-NEXT: Section: Undefined (0x0)
20# CHECK-NEXT: }26# CHECK-NEXT: }
21# CHECK-NEXT: Symbol {27# CHECK-NEXT: Symbol {
22# CHECK-NEXT: Name: bar228# CHECK-NEXT: Name: bar
29# CHECK-NEXT: Value:
30# CHECK-NEXT: Size:
31# CHECK-NEXT: Binding: Global
32# CHECK-NEXT: Type:
33# CHECK-NEXT: Other:
34# CHECK-NEXT: Section: .text
35# CHECK-NEXT: }
36# CHECK-NEXT: Symbol {
37# CHECK-NEXT: Name: baz
23# CHECK-NEXT: Value:38# CHECK-NEXT: Value:
24# CHECK-NEXT: Size:39# CHECK-NEXT: Size:
25# CHECK-NEXT: Binding: Global40# CHECK-NEXT: Binding: Global
...@@ -36,9 +51,76 @@...@@ -36,9 +51,76 @@
36# CHECK-NEXT: Other:51# CHECK-NEXT: Other:
37# CHECK-NEXT: Section: .text52# CHECK-NEXT: Section: .text
38# CHECK-NEXT: }53# CHECK-NEXT: }
54# CHECK-NEXT: Symbol {
55# CHECK-NEXT: Name: qux
56# CHECK-NEXT: Value:
57# CHECK-NEXT: Size:
58# CHECK-NEXT: Binding: Weak
59# CHECK-NEXT: Type:
60# CHECK-NEXT: Other:
61# CHECK-NEXT: Section: Undefined
62# CHECK-NEXT: }
39# CHECK-NEXT: ]63# CHECK-NEXT: ]
4064
41# CHECK: NEEDED Shared library: [{{.*}}.so]65# CHECK-NOT: NEEDED
66# CHECK: NEEDED Shared library: [{{.*}}3.so]
67# CHECK-NOT: NEEDED
68
69# Test with %t.o at the end too.
70# RUN: ld.lld --gc-sections --export-dynamic-symbol foo -o %t --as-needed %t2.so %t3.so %t4.so %t.o
71# RUN: llvm-readobj --dynamic-table --dyn-symbols %t | FileCheck --check-prefix=CHECK2 %s
72
73# CHECK2: DynamicSymbols [
74# CHECK2-NEXT: Symbol {
75# CHECK2-NEXT: Name:
76# CHECK2-NEXT: Value:
77# CHECK2-NEXT: Size:
78# CHECK2-NEXT: Binding: Local
79# CHECK2-NEXT: Type:
80# CHECK2-NEXT: Other:
81# CHECK2-NEXT: Section: Undefined (0x0)
82# CHECK2-NEXT: }
83# CHECK2-NEXT: Symbol {
84# CHECK2-NEXT: Name: bar
85# CHECK2-NEXT: Value:
86# CHECK2-NEXT: Size:
87# CHECK2-NEXT: Binding: Global
88# CHECK2-NEXT: Type:
89# CHECK2-NEXT: Other:
90# CHECK2-NEXT: Section: .text
91# CHECK2-NEXT: }
92# CHECK2-NEXT: Symbol {
93# CHECK2-NEXT: Name: baz
94# CHECK2-NEXT: Value:
95# CHECK2-NEXT: Size:
96# CHECK2-NEXT: Binding: Global
97# CHECK2-NEXT: Type:
98# CHECK2-NEXT: Other:
99# CHECK2-NEXT: Section: Undefined
100# CHECK2-NEXT: }
101# CHECK2-NEXT: Symbol {
102# CHECK2-NEXT: Name: qux
103# CHECK2-NEXT: Value:
104# CHECK2-NEXT: Size:
105# CHECK2-NEXT: Binding: Weak
106# CHECK2-NEXT: Type:
107# CHECK2-NEXT: Other:
108# CHECK2-NEXT: Section: Undefined
109# CHECK2-NEXT: }
110# CHECK2-NEXT: Symbol {
111# CHECK2-NEXT: Name: foo
112# CHECK2-NEXT: Value:
113# CHECK2-NEXT: Size:
114# CHECK2-NEXT: Binding: Global
115# CHECK2-NEXT: Type:
116# CHECK2-NEXT: Other:
117# CHECK2-NEXT: Section: .text
118# CHECK2-NEXT: }
119# CHECK2-NEXT: ]
120
121# CHECK2-NOT: NEEDED
122# CHECK2: NEEDED Shared library: [{{.*}}3.so]
123# CHECK2-NOT: NEEDED
42124
43.section .text.foo, "ax"125.section .text.foo, "ax"
44.globl foo126.globl foo
...@@ -52,7 +134,10 @@ ret...@@ -52,7 +134,10 @@ ret
52134
53.section .text._start, "ax"135.section .text._start, "ax"
54.globl _start136.globl _start
137.weak qux
55_start:138_start:
139call baz
140call qux
56ret141ret
57142
58.section .text.unused, "ax"143.section .text.unused, "ax"
deps/lld/test/ELF/gc-sections-undefined.s created+10
...@@ -0,0 +1,10 @@
1# REQUIRES: x86
2# RUN: llvm-mc -filetype=obj -triple=x86_64-unknown-linux %s -o %t
3# RUN: ld.lld %t -o %t1 --gc-sections --undefined=foo
4# RUN: llvm-readobj -t %t1 | FileCheck %s
5
6# CHECK: foo
7
8.section .foo,"ax"
9.global foo
10foo:
deps/lld/test/ELF/gdb-index-base-addr.s created+70
...@@ -0,0 +1,70 @@
1# REQUIRES: x86
2# RUN: llvm-mc -filetype=obj -triple=x86_64-pc-linux %s -o %t1.o
3# RUN: ld.lld --gdb-index %t1.o -o %t
4# RUN: llvm-dwarfdump -gdb-index %t | FileCheck %s
5
6# CHECK: .gnu_index contents:
7# CHECK: Address area offset = 0x28, has 2 entries:
8# CHECK-NEXT: Low/High address = [0x201000, 0x201001) (Size: 0x1), CU id = 0
9# CHECK-NEXT: Low/High address = [0x201003, 0x201006) (Size: 0x3), CU id = 0
10
11.text
12.globl foo
13.type foo,@function
14foo:
15.Lfunc_begin0:
16 nop
17.Ltmp0:
18 nop
19 nop
20.Ltmp1:
21 nop
22 nop
23 nop
24.Ltmp2:
25
26.section .debug_abbrev,"",@progbits
27.byte 1 # Abbreviation Code
28.byte 17 # DW_TAG_compile_unit
29.byte 0 # DW_CHILDREN_no
30.byte 37 # DW_AT_producer
31.byte 14 # DW_FORM_strp
32.byte 19 # DW_AT_language
33.byte 5 # DW_FORM_data2
34.byte 3 # DW_AT_name
35.byte 14 # DW_FORM_strp
36.byte 16 # DW_AT_stmt_list
37.byte 23 # DW_FORM_sec_offset
38.byte 27 # DW_AT_comp_dir
39.byte 14 # DW_FORM_strp
40.byte 17 # DW_AT_low_pc
41.byte 1 # DW_FORM_addr
42.byte 85 # DW_AT_ranges
43.byte 23 # DW_FORM_sec_offset
44.byte 0 # EOM(1)
45.byte 0 # EOM(2)
46.byte 0 # EOM(3)
47
48.section .debug_info,"",@progbits
49.Lcu_begin0:
50.long 38 # Length of Unit
51.short 4 # DWARF version number
52.long .debug_abbrev # Offset Into Abbrev. Section
53.byte 8 # Address Size (in bytes)
54.byte 1 # Abbrev [1] 0xb:0x1f DW_TAG_compile_unit
55.long 0 # DW_AT_producer
56.short 4 # DW_AT_language
57.long 0 # DW_AT_name
58.long 0 # DW_AT_stmt_list
59.long 0 # DW_AT_comp_dir
60.quad .Lfunc_begin0 # DW_AT_low_pc
61.long .Ldebug_ranges0 # DW_AT_ranges
62
63.section .debug_ranges,"",@progbits
64.Ldebug_ranges0:
65 .quad .Lfunc_begin0-.Lfunc_begin0
66 .quad .Ltmp0-.Lfunc_begin0
67 .quad .Ltmp1-.Lfunc_begin0
68 .quad .Ltmp2-.Lfunc_begin0
69 .quad 0
70 .quad 0
deps/lld/test/ELF/gdb-index-dup-types.s+1-1
...@@ -1,7 +1,7 @@...@@ -1,7 +1,7 @@
1# REQUIRES: x861# REQUIRES: x86
2# RUN: llvm-mc -filetype=obj -triple=x86_64-unknown-linux %s -o %t.o2# RUN: llvm-mc -filetype=obj -triple=x86_64-unknown-linux %s -o %t.o
3# RUN: ld.lld --gdb-index %t.o -o %t3# RUN: ld.lld --gdb-index %t.o -o %t
4# RUN: llvm-dwarfdump -debug-dump=gdb_index %t | FileCheck %s4# RUN: llvm-dwarfdump -gdb-index %t | FileCheck %s
55
6## Testcase is based on output produced by gcc version 5.4.1 201609046## Testcase is based on output produced by gcc version 5.4.1 20160904
7## it has duplicate entries in .debug_gnu_pubtypes which seems to be7## it has duplicate entries in .debug_gnu_pubtypes which seems to be
deps/lld/test/ELF/gdb-index-empty.s+2-2
...@@ -1,7 +1,7 @@...@@ -1,7 +1,7 @@
1# REQUIRES: x861# REQUIRES: x86
2# RUN: llvm-mc -filetype=obj -triple=x86_64-pc-linux -o %t %s2# RUN: llvm-mc -filetype=obj -triple=x86_64-pc-linux -o %t %s
3# RUN: ld.lld --gdb-index --gc-sections -o %t2 %t3# RUN: ld.lld --gdb-index --gc-sections -o %t2 %t
4# RUN: llvm-dwarfdump -debug-dump=gdb_index %t2 | FileCheck %s4# RUN: llvm-dwarfdump -gdb-index %t2 | FileCheck %s
55
6# CHECK: Address area offset = 0x28, has 0 entries:6# CHECK: Address area offset = 0x28, has 0 entries:
77
...@@ -74,7 +74,7 @@ _start:...@@ -74,7 +74,7 @@ _start:
74 .quad .Lfunc_begin0 # DW_AT_low_pc74 .quad .Lfunc_begin0 # DW_AT_low_pc
75 .long .Lfunc_end0-.Lfunc_begin0 # DW_AT_high_pc75 .long .Lfunc_end0-.Lfunc_begin0 # DW_AT_high_pc
76 .byte 1 # DW_AT_frame_base76 .byte 1 # DW_AT_frame_base
77 .byte 87 77 .byte 87
78 .long 0 # DW_AT_name78 .long 0 # DW_AT_name
79 .byte 1 # DW_AT_decl_file79 .byte 1 # DW_AT_decl_file
80 .byte 1 # DW_AT_decl_line80 .byte 1 # DW_AT_decl_line
deps/lld/test/ELF/gdb-index-gc-sections.s+1-1
...@@ -1,7 +1,7 @@...@@ -1,7 +1,7 @@
1# REQUIRES: x861# REQUIRES: x86
2# RUN: llvm-mc -filetype=obj -triple=x86_64-pc-linux -o %t %s2# RUN: llvm-mc -filetype=obj -triple=x86_64-pc-linux -o %t %s
3# RUN: ld.lld --gdb-index --gc-sections -o %t2 %t3# RUN: ld.lld --gdb-index --gc-sections -o %t2 %t
4# RUN: llvm-dwarfdump -debug-dump=gdb_index %t2 | FileCheck %s4# RUN: llvm-dwarfdump -gdb-index %t2 | FileCheck %s
55
6# CHECK: Address area offset = 0x28, has 1 entries:6# CHECK: Address area offset = 0x28, has 1 entries:
7# CHECK-NEXT: Low/High address = [0x201000, 0x201001) (Size: 0x1), CU id = 07# CHECK-NEXT: Low/High address = [0x201000, 0x201001) (Size: 0x1), CU id = 0
deps/lld/test/ELF/gdb-index-noranges.s created+49
...@@ -0,0 +1,49 @@
1# REQUIRES: x86
2# RUN: llvm-mc -filetype=obj -triple=x86_64-pc-linux %s -o %t1.o
3
4## Input is reduced from following code and invocation:
5## clang++ -gsplit-dwarf -c test.ii -o test.s -S
6## clang version: 6.0.0 (trunk 318293)
7##
8## test.ii:
9## int a;
10##
11## Debug information does not contain any address ranges.
12## We crashed in that case. Check we don't.
13# RUN: ld.lld --gdb-index %t1.o -o %t
14
15.section .debug_str,"MS",@progbits,1
16.Lskel_string0:
17 .asciz "t.dwo"
18.Lskel_string1:
19 .asciz "path"
20
21.section .debug_abbrev,"",@progbits
22 .byte 1 # Abbreviation Code
23 .byte 17 # DW_TAG_compile_unit
24 .byte 0 # DW_CHILDREN_no
25 .byte 16 # DW_AT_stmt_list
26 .byte 23 # DW_FORM_sec_offset
27 .ascii "\260B" # DW_AT_GNU_dwo_name
28 .byte 14 # DW_FORM_strp
29 .byte 27 # DW_AT_comp_dir
30 .byte 14 # DW_FORM_strp
31 .ascii "\261B" # DW_AT_GNU_dwo_id
32 .byte 7 # DW_FORM_data8
33 .ascii "\263B" # DW_AT_GNU_addr_base
34 .byte 23 # DW_FORM_sec_offset
35 .byte 0 # EOM(1)
36 .byte 0 # EOM(2)
37 .byte 0 # EOM(3)
38
39.section .debug_info,"",@progbits
40 .long 32 # Length of Unit
41 .short 4 # DWARF version number
42 .long .debug_abbrev # Offset Into Abbrev. Section
43 .byte 8 # Address Size (in bytes)
44 .byte 1 # Abbrev [1] 0xb:0x19 DW_TAG_compile_unit
45 .long 0 # DW_AT_stmt_list
46 .long .Lskel_string0 # DW_AT_GNU_dwo_name
47 .long .Lskel_string1 # DW_AT_comp_dir
48 .quad -3824446529333676116 # DW_AT_GNU_dwo_id
49 .long 0 # DW_AT_GNU_addr_base
deps/lld/test/ELF/gdb-index-ranges.s+1-1
...@@ -1,7 +1,7 @@...@@ -1,7 +1,7 @@
1# REQUIRES: x861# REQUIRES: x86
2# RUN: llvm-mc -filetype=obj -triple=x86_64-unknown-linux %s -o %t.o2# RUN: llvm-mc -filetype=obj -triple=x86_64-unknown-linux %s -o %t.o
3# RUN: ld.lld --gdb-index -e main %t.o -o %t3# RUN: ld.lld --gdb-index -e main %t.o -o %t
4# RUN: llvm-dwarfdump -debug-dump=gdb_index %t | FileCheck %s4# RUN: llvm-dwarfdump -gdb-index %t | FileCheck %s
55
6# CHECK: .gnu_index contents:6# CHECK: .gnu_index contents:
7# CHECK: Address area offset = 0x28, has 2 entries:7# CHECK: Address area offset = 0x28, has 2 entries:
deps/lld/test/ELF/gdb-index-tls.s created+91
...@@ -0,0 +1,91 @@
1# REQUIRES: x86
2# RUN: llvm-mc -filetype=obj -triple=x86_64-pc-linux %s -o %t.o
3# RUN: ld.lld --gdb-index -shared %t.o -o %t
4
5# This used to fail trying to compute R_X86_64_DTPOFF64
6
7 .section .tdata,"awT",@progbits
8PrettyStackTraceHead:
9 .long 42 # 0x2a
10
11 .section .debug_str,"MS",@progbits,1
12 .asciz ""
13
14 .section .debug_abbrev,"",@progbits
15 .byte 1 # Abbreviation Code
16 .byte 17 # DW_TAG_compile_unit
17 .byte 1 # DW_CHILDREN_yes
18 .byte 37 # DW_AT_producer
19 .byte 14 # DW_FORM_strp
20 .byte 19 # DW_AT_language
21 .byte 5 # DW_FORM_data2
22 .byte 3 # DW_AT_name
23 .byte 14 # DW_FORM_strp
24 .byte 16 # DW_AT_stmt_list
25 .byte 23 # DW_FORM_sec_offset
26 .byte 27 # DW_AT_comp_dir
27 .byte 14 # DW_FORM_strp
28 .ascii "\264B" # DW_AT_GNU_pubnames
29 .byte 25 # DW_FORM_flag_present
30 .byte 0 # EOM(1)
31 .byte 0 # EOM(2)
32 .byte 2 # Abbreviation Code
33 .byte 52 # DW_TAG_variable
34 .byte 0 # DW_CHILDREN_no
35 .byte 3 # DW_AT_name
36 .byte 14 # DW_FORM_strp
37 .byte 73 # DW_AT_type
38 .byte 19 # DW_FORM_ref4
39 .byte 63 # DW_AT_external
40 .byte 25 # DW_FORM_flag_present
41 .byte 58 # DW_AT_decl_file
42 .byte 11 # DW_FORM_data1
43 .byte 59 # DW_AT_decl_line
44 .byte 11 # DW_FORM_data1
45 .byte 2 # DW_AT_location
46 .byte 24 # DW_FORM_exprloc
47 .byte 0 # EOM(1)
48 .byte 0 # EOM(2)
49 .byte 3 # Abbreviation Code
50 .byte 36 # DW_TAG_base_type
51 .byte 0 # DW_CHILDREN_no
52 .byte 3 # DW_AT_name
53 .byte 14 # DW_FORM_strp
54 .byte 62 # DW_AT_encoding
55 .byte 11 # DW_FORM_data1
56 .byte 11 # DW_AT_byte_size
57 .byte 11 # DW_FORM_data1
58 .byte 0 # EOM(1)
59 .byte 0 # EOM(2)
60 .byte 0 # EOM(3)
61
62 .section .debug_info,"",@progbits
63.Lcu_begin0:
64 .long 56 # Length of Unit
65 .short 4 # DWARF version number
66 .long .debug_abbrev # Offset Into Abbrev. Section
67 .byte 8 # Address Size (in bytes)
68 .byte 1 # Abbrev [1] 0xb:0x31 DW_TAG_compile_unit
69 .long .debug_str # DW_AT_producer
70 .short 4 # DW_AT_language
71 .long .debug_str # DW_AT_name
72 .long .debug_line # DW_AT_stmt_list
73 .long .debug_str # DW_AT_comp_dir
74 # DW_AT_GNU_pubnames
75 .byte 2 # Abbrev [2] 0x1e:0x16 DW_TAG_variable
76 .long .debug_str # DW_AT_name
77 .long 52 # DW_AT_type
78 # DW_AT_external
79 .byte 1 # DW_AT_decl_file
80 .byte 1 # DW_AT_decl_line
81 .byte 10 # DW_AT_location
82 .byte 14
83 .quad PrettyStackTraceHead@DTPOFF
84 .byte 224
85 .byte 3 # Abbrev [3] 0x34:0x7 DW_TAG_base_type
86 .long .debug_str # DW_AT_name
87 .byte 5 # DW_AT_encoding
88 .byte 4 # DW_AT_byte_size
89 .byte 0 # End Of Children Mark
90
91 .section .debug_line,"",@progbits
deps/lld/test/ELF/gdb-index.s+17-13
...@@ -1,12 +1,12 @@...@@ -1,12 +1,12 @@
1# REQUIRES: x861# REQUIRES: x86
2# RUN: llvm-mc -filetype=obj -triple=x86_64-pc-linux %s -o %t1.o2# RUN: llvm-mc -filetype=obj -triple=x86_64-pc-linux %s -o %t1.o
3# RUN: llvm-mc -filetype=obj -triple=x86_64-pc-linux %p/Inputs/gdb-index.s -o %t2.o3# RUN: llvm-mc -filetype=obj -triple=x86_64-pc-linux %p/Inputs/gdb-index.s -o %t2.o
4# RUN: ld.lld --gdb-index -e main %t1.o %t2.o -o %t4# RUN: ld.lld --gdb-index %t1.o %t2.o -o %t
5# RUN: llvm-dwarfdump -debug-dump=gdb_index %t | FileCheck %s5# RUN: llvm-dwarfdump -gdb-index %t | FileCheck %s
6# RUN: llvm-objdump -d %t | FileCheck %s --check-prefix=DISASM6# RUN: llvm-objdump -d %t | FileCheck %s --check-prefix=DISASM
77
8# DISASM: Disassembly of section .text:8# DISASM: Disassembly of section .text:
9# DISASM: main:9# DISASM: entrypoint:
10# DISASM-CHECK: 201000: 90 nop10# DISASM-CHECK: 201000: 90 nop
11# DISASM-CHECK: 201001: cc int311# DISASM-CHECK: 201001: cc int3
12# DISASM-CHECK: 201002: cc int312# DISASM-CHECK: 201002: cc int3
...@@ -24,25 +24,29 @@...@@ -24,25 +24,29 @@
24# CHECK-NEXT: Low/High address = [0x201000, 0x201001) (Size: 0x1), CU id = 024# CHECK-NEXT: Low/High address = [0x201000, 0x201001) (Size: 0x1), CU id = 0
25# CHECK-NEXT: Low/High address = [0x201004, 0x201006) (Size: 0x2), CU id = 125# CHECK-NEXT: Low/High address = [0x201004, 0x201006) (Size: 0x2), CU id = 1
26# CHECK: Symbol table offset = 0x60, size = 1024, filled slots:26# CHECK: Symbol table offset = 0x60, size = 1024, filled slots:
27# CHECK-NEXT: 489: Name offset = 0x1d, CU vector offset = 0x027# CHECK-NEXT: 754: Name offset = 0x27, CU vector offset = 0x8
28# CHECK-NEXT: String name: main, CU vector index: 028# CHECK-NEXT: String name: int, CU vector index: 1
29# CHECK-NEXT: 754: Name offset = 0x22, CU vector offset = 0x829# CHECK-NEXT: 822: Name offset = 0x1c, CU vector offset = 0x0
30# CHECK-NEXT: String name: int, CU vector index: 130# CHECK-NEXT: String name: entrypoint, CU vector index: 0
31# CHECK-NEXT: 956: Name offset = 0x26, CU vector offset = 0x1431# CHECK-NEXT: 956: Name offset = 0x2b, CU vector offset = 0x14
32# CHECK-NEXT: String name: main2, CU vector index: 232# CHECK-NEXT: String name: main2, CU vector index: 2
33# CHECK: Constant pool offset = 0x2060, has 3 CU vectors:33# CHECK: Constant pool offset = 0x2060, has 3 CU vectors:
34# CHECK-NEXT: 0(0x0): 0x3000000034# CHECK-NEXT: 0(0x0): 0x30000000
35# CHECK-NEXT: 1(0x8): 0x90000000 0x9000000135# CHECK-NEXT: 1(0x8): 0x90000000 0x90000001
36# CHECK-NEXT: 2(0x14): 0x3000000136# CHECK-NEXT: 2(0x14): 0x30000001
3737
38# RUN: ld.lld --gdb-index --no-gdb-index %t1.o %t2.o -o %t2
39# RUN: llvm-readobj -sections %t2 | FileCheck -check-prefix=NOGDB %s
40# NOGDB-NOT: Name: .gdb_index
41
38## The following section contents are created by this using gcc 7.1.0:42## The following section contents are created by this using gcc 7.1.0:
39## echo 'int main() { return 0; }' | gcc -gsplit-dwarf -xc++ -S -o- -43## echo 'int entrypoint() { return 0; }' | gcc -gsplit-dwarf -xc++ -S -o- -
4044
41.text45.text
42.Ltext0:46.Ltext0:
43.globl main47.globl entrypoint
44.type main, @function48.type entrypoint, @function
45main:49entrypoint:
46 nop50 nop
47.Letext0:51.Letext0:
4852
...@@ -98,7 +102,7 @@ main:...@@ -98,7 +102,7 @@ main:
98.long 0x33102.long 0x33
99.long 0x18103.long 0x18
100.byte 0x30104.byte 0x30
101.string "main"105.string "entrypoint"
102.long 0106.long 0
103107
104.section .debug_gnu_pubtypes,"",@progbits108.section .debug_gnu_pubtypes,"",@progbits
deps/lld/test/ELF/global-offset-table-position-aarch64.s+1-1
...@@ -1,5 +1,5 @@...@@ -1,5 +1,5 @@
1// RUN: llvm-mc -filetype=obj -triple=aarch64-linux-gnu %s -o %t1// RUN: llvm-mc -filetype=obj -triple=aarch64-linux-gnu %s -o %t
2// RUN: ld.lld -shared %t -o %t22// RUN: ld.lld --hash-style=sysv -shared %t -o %t2
3// RUN: llvm-readobj -t %t2 | FileCheck %s3// RUN: llvm-readobj -t %t2 | FileCheck %s
4// REQUIRES: aarch644// REQUIRES: aarch64
5.globl a5.globl a
deps/lld/test/ELF/global-offset-table-position-arm.s+1-1
...@@ -1,5 +1,5 @@...@@ -1,5 +1,5 @@
1// RUN: llvm-mc -filetype=obj -triple=armv7a-linux-gnueabihf %s -o %t1// RUN: llvm-mc -filetype=obj -triple=armv7a-linux-gnueabihf %s -o %t
2// RUN: ld.lld -shared %t -o %t22// RUN: ld.lld --hash-style=sysv -shared %t -o %t2
3// RUN: llvm-readobj -t %t2 | FileCheck %s3// RUN: llvm-readobj -t %t2 | FileCheck %s
4// REQUIRES: arm4// REQUIRES: arm
55
deps/lld/test/ELF/global-offset-table-position-i386.s+1-1
...@@ -1,5 +1,5 @@...@@ -1,5 +1,5 @@
1// RUN: llvm-mc -filetype=obj -triple=i386-pc-linux %s -o %t1// RUN: llvm-mc -filetype=obj -triple=i386-pc-linux %s -o %t
2// RUN: ld.lld -shared %t -o %t22// RUN: ld.lld --hash-style=sysv -shared %t -o %t2
3// RUN: llvm-readobj -t %t2 | FileCheck %s3// RUN: llvm-readobj -t %t2 | FileCheck %s
4// REQUIRES: x864// REQUIRES: x86
55
deps/lld/test/ELF/global-offset-table-position.s+1-1
...@@ -1,5 +1,5 @@...@@ -1,5 +1,5 @@
1// RUN: llvm-mc -filetype=obj -triple=x86_64-pc-linux %s -o %t1// RUN: llvm-mc -filetype=obj -triple=x86_64-pc-linux %s -o %t
2// RUN: ld.lld -shared %t -o %t22// RUN: ld.lld --hash-style=sysv -shared %t -o %t2
3// RUN: llvm-readobj -t %t2 | FileCheck %s3// RUN: llvm-readobj -t %t2 | FileCheck %s
4// REQUIRES: x864// REQUIRES: x86
55
deps/lld/test/ELF/global_offset_table_shared.s+1-1
...@@ -1,5 +1,5 @@...@@ -1,5 +1,5 @@
1// RUN: llvm-mc -filetype=obj -triple=x86_64-pc-linux %s -o %t1// RUN: llvm-mc -filetype=obj -triple=x86_64-pc-linux %s -o %t
2// RUN: ld.lld -shared %t -o %t22// RUN: ld.lld --hash-style=sysv -shared %t -o %t2
3// RUN: llvm-readobj -t %t2 | FileCheck %s3// RUN: llvm-readobj -t %t2 | FileCheck %s
4.long _GLOBAL_OFFSET_TABLE_ - .4.long _GLOBAL_OFFSET_TABLE_ - .
55
deps/lld/test/ELF/gnu-hash-table-copy.s created+30
...@@ -0,0 +1,30 @@
1# REQUIRES: x86
2
3# RUN: echo ".global foo; .type foo, @object; .size foo, 4; foo:; .long 0" > %t.s
4# RUN: echo ".global bar; .type bar, @object; .size bar, 4; bar:; .long 0" >> %t.s
5# RUN: echo ".global zed; .type zed, @function; zed:" >> %t.s
6# RUN: llvm-mc -filetype=obj -triple=x86_64-pc-linux %t.s -o %t1.o
7# RUN: ld.lld %t1.o -o %t1.so -shared
8
9# RUN: llvm-mc -filetype=obj -triple=x86_64-pc-linux %s -o %t2.o
10# RUN: ld.lld --hash-style=gnu %t2.o %t1.so -o %t2
11
12# RUN: llvm-readelf --symbols --gnu-hash-table %t2 | FileCheck %s
13
14# CHECK: Symbol table '.dynsym' contains 4 entries:
15# CHECK-NEXT: Num: Value Size Type Bind Vis Ndx Name
16# CHECK-NEXT: 0: 0000000000000000 0 NOTYPE LOCAL DEFAULT UND @
17# CHECK-NEXT: 1: 0000000000000000 0 OBJECT GLOBAL DEFAULT UND foo@
18# CHECK-DAG: : {{.*}} 4 OBJECT GLOBAL DEFAULT {{.*}} bar@
19# CHECK-DAG: : {{.*}} 0 FUNC GLOBAL DEFAULT UND zed@
20
21# CHECK: First Hashed Symbol Index: 2
22
23.global _start
24_start:
25
26.quad bar
27.quad zed
28
29.data
30.quad foo
deps/lld/test/ELF/gnu-hash-table-many.s created+55
...@@ -0,0 +1,55 @@
1# REQUIRES: x86
2
3# RUN: llvm-mc -filetype=obj -triple=x86_64-pc-linux %s -o %t.o
4# RUN: ld.lld -hash-style=gnu %t.o -o %t.so -shared
5# RUN: llvm-readelf --gnu-hash-table %t.so | FileCheck %s
6
7# CHECK: Num Buckets: 4
8
9.global sym1
10sym1:
11
12.global sym2
13sym2:
14
15.global sym3
16sym3:
17
18.global sym4
19sym4:
20
21.global sym5
22sym5:
23
24.global sym6
25sym6:
26
27.global sym7
28sym7:
29
30.global sym8
31sym8:
32
33.global sym9
34sym9:
35
36.global sym10
37sym10:
38
39.global sym11
40sym11:
41
42.global sym12
43sym12:
44
45.global sym13
46sym13:
47
48.global sym14
49sym14:
50
51.global sym15
52sym15:
53
54.global sym16
55sym16:
deps/lld/test/ELF/gnu-hash-table-rwsegment.s created+20
...@@ -0,0 +1,20 @@
1# REQUIRES: x86
2
3# RUN: llvm-mc -filetype=obj -triple=x86_64-pc-linux %s -o %t.o
4# RUN: ld.lld -shared -hash-style=gnu --no-rosegment -o %t.so %t.o
5# RUN: llvm-readobj -gnu-hash-table %t.so | FileCheck %s
6
7# CHECK: GnuHashTable {
8# CHECK-NEXT: Num Buckets: 1
9# CHECK-NEXT: First Hashed Symbol Index: 1
10# CHECK-NEXT: Num Mask Words: 1
11# CHECK-NEXT: Shift Count: 6
12# CHECK-NEXT: Bloom Filter: [0x400000000004204]
13# CHECK-NEXT: Buckets: [1]
14# CHECK-NEXT: Values: [0xB8860BA, 0xB887389]
15# CHECK-NEXT: }
16
17.globl foo, bar
18foo:
19bar:
20 ret
deps/lld/test/ELF/gnu-hash-table.s+66-13
...@@ -1,15 +1,34 @@...@@ -1,15 +1,34 @@
1# REQUIRES: x86,ppc1# REQUIRES: x86,ppc
22
3# RUN: echo ".globl foo" > %te.s3# RUN: echo ".globl foo; .data; .dc.a foo" > %te.s
4# RUN: llvm-mc -filetype=obj -triple=i386-pc-linux %te.s -o %te-i386.o4# RUN: llvm-mc -filetype=obj -triple=i386-pc-linux %te.s -o %te-i386.o
5# RUN: llvm-mc -filetype=obj -triple=i386-pc-linux %s -o %t-i386.o5# RUN: llvm-mc -filetype=obj -triple=i386-pc-linux %s -o %t-i386.o
6# RUN: llvm-mc -filetype=obj -triple=x86_64-pc-linux %s -o %t-x86_64.o6# RUN: llvm-mc -filetype=obj -triple=x86_64-pc-linux %s -o %t-x86_64.o
7# RUN: llvm-mc -filetype=obj -triple=powerpc64-pc-linux %s -o %t-ppc64.o7# RUN: llvm-mc -filetype=obj -triple=powerpc64-pc-linux %s -o %t-ppc64.o
88
9# RUN: echo ".global zed; zed:" > %t2.s
10# RUN: llvm-mc -filetype=obj -triple=i386-pc-linux %t2.s -o %t2-i386.o
11# RUN: llvm-mc -filetype=obj -triple=x86_64-pc-linux %t2.s -o %t2-x86_64.o
12# RUN: llvm-mc -filetype=obj -triple=powerpc64-pc-linux %t2.s -o %t2-ppc64.o
13
14# RUN: rm -f %t2-i386.a %t2-x86_64.a %t2-ppc64.a
15# RUN: llvm-ar rc %t2-i386.a %t2-i386.o
16# RUN: llvm-ar rc %t2-x86_64.a %t2-x86_64.o
17# RUN: llvm-ar rc %t2-ppc64.a %t2-ppc64.o
18
19# RUN: echo ".global xyz; xyz:" > %t3.s
20# RUN: llvm-mc -filetype=obj -triple=i386-pc-linux %t3.s -o %t3-i386.o
21# RUN: llvm-mc -filetype=obj -triple=x86_64-pc-linux %t3.s -o %t3-x86_64.o
22# RUN: llvm-mc -filetype=obj -triple=powerpc64-pc-linux %t3.s -o %t3-ppc64.o
23
24# RUN: ld.lld -shared %t3-i386.o -o %t3-i386.so
25# RUN: ld.lld -shared %t3-x86_64.o -o %t3-x86_64.so
26# RUN: ld.lld -shared %t3-ppc64.o -o %t3-ppc64.so
27
9# RUN: ld.lld -shared --hash-style=gnu -o %te-i386.so %te-i386.o28# RUN: ld.lld -shared --hash-style=gnu -o %te-i386.so %te-i386.o
10# RUN: ld.lld -shared -hash-style=gnu -o %t-i386.so %t-i386.o29# RUN: ld.lld -shared -hash-style=gnu -o %t-i386.so %t-i386.o %t2-i386.a %t3-i386.so
11# RUN: ld.lld -shared -hash-style=gnu -o %t-x86_64.so %t-x86_64.o30# RUN: ld.lld -shared -hash-style=gnu -o %t-x86_64.so %t-x86_64.o %t2-x86_64.a %t3-x86_64.so
12# RUN: ld.lld -shared --hash-style both -o %t-ppc64.so %t-ppc64.o31# RUN: ld.lld -shared --hash-style both -o %t-ppc64.so %t-ppc64.o %t2-ppc64.a %t3-ppc64.so
1332
14# RUN: llvm-readobj -dyn-symbols -gnu-hash-table %te-i386.so \33# RUN: llvm-readobj -dyn-symbols -gnu-hash-table %te-i386.so \
15# RUN: | FileCheck %s -check-prefix=EMPTY34# RUN: | FileCheck %s -check-prefix=EMPTY
...@@ -70,6 +89,16 @@...@@ -70,6 +89,16 @@
70# I386: Section: Undefined89# I386: Section: Undefined
71# I386: }90# I386: }
72# I386: Symbol {91# I386: Symbol {
92# I386: Name: xyz@
93# I386: Binding: Global
94# I386: Section: Undefined
95# I386: }
96# I386: Symbol {
97# I386: Name: zed@
98# I386: Binding: Weak
99# I386: Section: Undefined
100# I386: }
101# I386: Symbol {
73# I386: Name: bar@102# I386: Name: bar@
74# I386: Binding: Global103# I386: Binding: Global
75# I386: Section: .text104# I386: Section: .text
...@@ -82,11 +111,11 @@...@@ -82,11 +111,11 @@
82# I386: ]111# I386: ]
83# I386: GnuHashTable {112# I386: GnuHashTable {
84# I386-NEXT: Num Buckets: 1113# I386-NEXT: Num Buckets: 1
85# I386-NEXT: First Hashed Symbol Index: 2114# I386-NEXT: First Hashed Symbol Index: 4
86# I386-NEXT: Num Mask Words: 1115# I386-NEXT: Num Mask Words: 1
87# I386-NEXT: Shift Count: 5116# I386-NEXT: Shift Count: 5
88# I386-NEXT: Bloom Filter: [0x14000220]117# I386-NEXT: Bloom Filter: [0x14000220]
89# I386-NEXT: Buckets: [2]118# I386-NEXT: Buckets: [4]
90# I386-NEXT: Values: [0xB8860BA, 0xB887389]119# I386-NEXT: Values: [0xB8860BA, 0xB887389]
91# I386-NEXT: }120# I386-NEXT: }
92121
...@@ -120,6 +149,16 @@...@@ -120,6 +149,16 @@
120# X86_64: Section: Undefined149# X86_64: Section: Undefined
121# X86_64: }150# X86_64: }
122# X86_64: Symbol {151# X86_64: Symbol {
152# X86_64: Name: xyz@
153# X86_64: Binding: Global
154# X86_64: Section: Undefined
155# X86_64: }
156# X86_64: Symbol {
157# X86_64: Name: zed@
158# X86_64: Binding: Weak
159# X86_64: Section: Undefined
160# X86_64: }
161# X86_64: Symbol {
123# X86_64: Name: bar@162# X86_64: Name: bar@
124# X86_64: Binding: Global163# X86_64: Binding: Global
125# X86_64: Section: .text164# X86_64: Section: .text
...@@ -132,11 +171,11 @@...@@ -132,11 +171,11 @@
132# X86_64: ]171# X86_64: ]
133# X86_64: GnuHashTable {172# X86_64: GnuHashTable {
134# X86_64-NEXT: Num Buckets: 1173# X86_64-NEXT: Num Buckets: 1
135# X86_64-NEXT: First Hashed Symbol Index: 2174# X86_64-NEXT: First Hashed Symbol Index: 4
136# X86_64-NEXT: Num Mask Words: 1175# X86_64-NEXT: Num Mask Words: 1
137# X86_64-NEXT: Shift Count: 6176# X86_64-NEXT: Shift Count: 6
138# X86_64-NEXT: Bloom Filter: [0x400000000004204]177# X86_64-NEXT: Bloom Filter: [0x400000000004204]
139# X86_64-NEXT: Buckets: [2]178# X86_64-NEXT: Buckets: [4]
140# X86_64-NEXT: Values: [0xB8860BA, 0xB887389]179# X86_64-NEXT: Values: [0xB8860BA, 0xB887389]
141# X86_64-NEXT: }180# X86_64-NEXT: }
142181
...@@ -149,10 +188,10 @@...@@ -149,10 +188,10 @@
149# PPC64-NEXT: Flags [188# PPC64-NEXT: Flags [
150# PPC64-NEXT: SHF_ALLOC189# PPC64-NEXT: SHF_ALLOC
151# PPC64-NEXT: ]190# PPC64-NEXT: ]
152# PPC64-NEXT: Address: 0x228191# PPC64-NEXT: Address:
153# PPC64-NEXT: Offset: 0x228192# PPC64-NEXT: Offset:
154# PPC64-NEXT: Size: 36193# PPC64-NEXT: Size: 36
155# PPC64-NEXT: Link: 1194# PPC64-NEXT: Link:
156# PPC64-NEXT: Info: 0195# PPC64-NEXT: Info: 0
157# PPC64-NEXT: AddressAlignment: 8196# PPC64-NEXT: AddressAlignment: 8
158# PPC64-NEXT: EntrySize: 0197# PPC64-NEXT: EntrySize: 0
...@@ -170,6 +209,16 @@...@@ -170,6 +209,16 @@
170# PPC64: Section: Undefined209# PPC64: Section: Undefined
171# PPC64: }210# PPC64: }
172# PPC64: Symbol {211# PPC64: Symbol {
212# PPC64: Name: xyz@
213# PPC64: Binding: Global
214# PPC64: Section: Undefined
215# PPC64: }
216# PPC64: Symbol {
217# PPC64: Name: zed@
218# PPC64: Binding: Weak
219# PPC64: Section: Undefined
220# PPC64: }
221# PPC64: Symbol {
173# PPC64: Name: bar@222# PPC64: Name: bar@
174# PPC64: Binding: Global223# PPC64: Binding: Global
175# PPC64: Section: .text224# PPC64: Section: .text
...@@ -182,14 +231,18 @@...@@ -182,14 +231,18 @@
182# PPC64: ]231# PPC64: ]
183# PPC64: GnuHashTable {232# PPC64: GnuHashTable {
184# PPC64-NEXT: Num Buckets: 1233# PPC64-NEXT: Num Buckets: 1
185# PPC64-NEXT: First Hashed Symbol Index: 2234# PPC64-NEXT: First Hashed Symbol Index: 4
186# PPC64-NEXT: Num Mask Words: 1235# PPC64-NEXT: Num Mask Words: 1
187# PPC64-NEXT: Shift Count: 6236# PPC64-NEXT: Shift Count: 6
188# PPC64-NEXT: Bloom Filter: [0x400000000004204]237# PPC64-NEXT: Bloom Filter: [0x400000000004204]
189# PPC64-NEXT: Buckets: [2]238# PPC64-NEXT: Buckets: [4]
190# PPC64-NEXT: Values: [0xB8860BA, 0xB887389]239# PPC64-NEXT: Values: [0xB8860BA, 0xB887389]
191# PPC64-NEXT: }240# PPC64-NEXT: }
192241
193.globl foo,bar,baz242.globl foo,bar,baz
194foo:243foo:
195bar:244bar:
245.weak zed
246.global xyz
247.data
248 .dc.a baz
deps/lld/test/ELF/gnu-ifunc-dynsym.s created+19
...@@ -0,0 +1,19 @@
1// RUN: llvm-mc -filetype=obj -triple=x86_64-pc-linux %s -o %t.o
2// RUN: ld.lld -static -export-dynamic %t.o -o %tout
3// RUN: llvm-nm -U %tout | FileCheck %s
4// REQUIRES: x86
5
6// CHECK: __rela_iplt_end
7// CHECK: __rela_iplt_start
8
9.text
10.type foo STT_GNU_IFUNC
11.globl foo
12foo:
13 ret
14
15.globl _start
16_start:
17 call foo
18 movl $__rela_iplt_start,%edx
19 movl $__rela_iplt_end,%edx
deps/lld/test/ELF/gnu-ifunc-dyntags.s created+41
...@@ -0,0 +1,41 @@
1# REQUIRES: x86
2# RUN: llvm-mc -filetype=obj -triple=x86_64-pc-linux %s -o %t.o
3# RUN: ld.lld -pie %t.o -o %tout
4# RUN: llvm-objdump -section-headers %tout | FileCheck %s
5# RUN: llvm-readobj -dynamic-table -r %tout | FileCheck %s --check-prefix=TAGS
6
7## Check we produce DT_PLTREL/DT_JMPREL/DT_PLTGOT and DT_PLTRELSZ tags
8## when there are no other relocations except R_*_IRELATIVE.
9
10# CHECK: Name Size Address
11# CHECK: .rela.plt 00000030 0000000000000210
12# CHECK: .got.plt 00000010 0000000000002000
13
14# TAGS: Relocations [
15# TAGS-NEXT: Section {{.*}} .rela.plt {
16# TAGS-NEXT: R_X86_64_IRELATIVE
17# TAGS-NEXT: R_X86_64_IRELATIVE
18# TAGS-NEXT: }
19# TAGS-NEXT: ]
20
21# TAGS: Tag Type Name/Value
22# TAGS: 0x0000000000000017 JMPREL 0x210
23# TAGS: 0x0000000000000002 PLTRELSZ 48
24# TAGS: 0x0000000000000003 PLTGOT 0x2000
25# TAGS: 0x0000000000000014 PLTREL RELA
26
27.text
28.type foo STT_GNU_IFUNC
29.globl foo
30foo:
31 ret
32
33.type bar STT_GNU_IFUNC
34.globl bar
35bar:
36 ret
37
38.globl _start
39_start:
40 call foo
41 call bar
deps/lld/test/ELF/gnu-ifunc-gotpcrel.s+1-1
...@@ -2,7 +2,7 @@...@@ -2,7 +2,7 @@
2# RUN: llvm-mc -filetype=obj -triple=x86_64-pc-linux %S/Inputs/gnu-ifunc-gotpcrel.s -o %t2.o2# RUN: llvm-mc -filetype=obj -triple=x86_64-pc-linux %S/Inputs/gnu-ifunc-gotpcrel.s -o %t2.o
3# RUN: ld.lld -shared %t2.o -o %t2.so3# RUN: ld.lld -shared %t2.o -o %t2.so
4# RUN: llvm-mc -filetype=obj -triple=x86_64-pc-linux %s -o %t.o4# RUN: llvm-mc -filetype=obj -triple=x86_64-pc-linux %s -o %t.o
5# RUN: ld.lld %t.o %t2.so -o %t5# RUN: ld.lld --hash-style=sysv %t.o %t2.so -o %t
6# RUN: llvm-readobj -dyn-relocations %t | FileCheck %s6# RUN: llvm-readobj -dyn-relocations %t | FileCheck %s
77
8# CHECK: Dynamic Relocations {8# CHECK: Dynamic Relocations {
deps/lld/test/ELF/gnu-ifunc-i386.s+3-3
...@@ -15,7 +15,7 @@...@@ -15,7 +15,7 @@
15// CHECK-NEXT: Address: [[RELA:.*]]15// CHECK-NEXT: Address: [[RELA:.*]]
16// CHECK-NEXT: Offset: 0xD416// CHECK-NEXT: Offset: 0xD4
17// CHECK-NEXT: Size: 1617// CHECK-NEXT: Size: 16
18// CHECK-NEXT: Link: 618// CHECK-NEXT: Link: 0
19// CHECK-NEXT: Info: 019// CHECK-NEXT: Info: 0
20// CHECK-NEXT: AddressAlignment: 420// CHECK-NEXT: AddressAlignment: 4
21// CHECK-NEXT: EntrySize: 821// CHECK-NEXT: EntrySize: 8
...@@ -102,10 +102,10 @@...@@ -102,10 +102,10 @@
102// DISASM-NEXT: .plt:102// DISASM-NEXT: .plt:
103// DISASM-NEXT: 11020: ff 25 00 20 01 00 jmpl *73728103// DISASM-NEXT: 11020: ff 25 00 20 01 00 jmpl *73728
104// DISASM-NEXT: 11026: 68 10 00 00 00 pushl $16104// DISASM-NEXT: 11026: 68 10 00 00 00 pushl $16
105// DISASM-NEXT: 1102b: e9 e0 ff ff ff jmp -32 <_start+0xE>105// DISASM-NEXT: 1102b: e9 e0 ff ff ff jmp -32 <_start+0xe>
106// DISASM-NEXT: 11030: ff 25 04 20 01 00 jmpl *73732106// DISASM-NEXT: 11030: ff 25 04 20 01 00 jmpl *73732
107// DISASM-NEXT: 11036: 68 18 00 00 00 pushl $24107// DISASM-NEXT: 11036: 68 18 00 00 00 pushl $24
108// DISASM-NEXT: 1103b: e9 d0 ff ff ff jmp -48 <_start+0xE>108// DISASM-NEXT: 1103b: e9 d0 ff ff ff jmp -48 <_start+0xe>
109109
110.text110.text
111.type foo STT_GNU_IFUNC111.type foo STT_GNU_IFUNC
deps/lld/test/ELF/gnu-ifunc-plt-i386.s+1-1
...@@ -1,7 +1,7 @@...@@ -1,7 +1,7 @@
1// RUN: llvm-mc -filetype=obj -triple=i686-pc-linux %S/Inputs/shared2-x86-64.s -o %t1.o1// RUN: llvm-mc -filetype=obj -triple=i686-pc-linux %S/Inputs/shared2-x86-64.s -o %t1.o
2// RUN: ld.lld %t1.o --shared -o %t.so2// RUN: ld.lld %t1.o --shared -o %t.so
3// RUN: llvm-mc -filetype=obj -triple=i686-pc-linux %s -o %t.o3// RUN: llvm-mc -filetype=obj -triple=i686-pc-linux %s -o %t.o
4// RUN: ld.lld %t.so %t.o -o %tout4// RUN: ld.lld --hash-style=sysv %t.so %t.o -o %tout
5// RUN: llvm-objdump -d %tout | FileCheck %s --check-prefix=DISASM5// RUN: llvm-objdump -d %tout | FileCheck %s --check-prefix=DISASM
6// RUN: llvm-objdump -s %tout | FileCheck %s --check-prefix=GOTPLT6// RUN: llvm-objdump -s %tout | FileCheck %s --check-prefix=GOTPLT
7// RUN: llvm-readobj -r -dynamic-table %tout | FileCheck %s7// RUN: llvm-readobj -r -dynamic-table %tout | FileCheck %s
deps/lld/test/ELF/gnu-ifunc-plt.s+1-1
...@@ -1,7 +1,7 @@...@@ -1,7 +1,7 @@
1// RUN: llvm-mc -filetype=obj -triple=x86_64-pc-linux %S/Inputs/shared2-x86-64.s -o %t1.o1// RUN: llvm-mc -filetype=obj -triple=x86_64-pc-linux %S/Inputs/shared2-x86-64.s -o %t1.o
2// RUN: ld.lld %t1.o --shared -o %t.so2// RUN: ld.lld %t1.o --shared -o %t.so
3// RUN: llvm-mc -filetype=obj -triple=x86_64-unknown-linux %s -o %t.o3// RUN: llvm-mc -filetype=obj -triple=x86_64-unknown-linux %s -o %t.o
4// RUN: ld.lld %t.so %t.o -o %tout4// RUN: ld.lld --hash-style=sysv %t.so %t.o -o %tout
5// RUN: llvm-objdump -d %tout | FileCheck %s --check-prefix=DISASM5// RUN: llvm-objdump -d %tout | FileCheck %s --check-prefix=DISASM
6// RUN: llvm-objdump -s %tout | FileCheck %s --check-prefix=GOTPLT6// RUN: llvm-objdump -s %tout | FileCheck %s --check-prefix=GOTPLT
7// RUN: llvm-readobj -r -dynamic-table %tout | FileCheck %s7// RUN: llvm-readobj -r -dynamic-table %tout | FileCheck %s
deps/lld/test/ELF/gnu-ifunc-shared.s+1-1
...@@ -1,6 +1,6 @@...@@ -1,6 +1,6 @@
1// REQUIRES: x861// REQUIRES: x86
2// RUN: llvm-mc -filetype=obj -triple=x86_64-unknown-linux %s -o %t.o2// RUN: llvm-mc -filetype=obj -triple=x86_64-unknown-linux %s -o %t.o
3// RUN: ld.lld --shared -o %t.so %t.o3// RUN: ld.lld --hash-style=sysv --shared -o %t.so %t.o
4// RUN: llvm-objdump -d %t.so | FileCheck %s --check-prefix=DISASM4// RUN: llvm-objdump -d %t.so | FileCheck %s --check-prefix=DISASM
5// RUN: llvm-readobj -r %t.so | FileCheck %s5// RUN: llvm-readobj -r %t.so | FileCheck %s
66
deps/lld/test/ELF/gnu-ifunc.s+3-3
...@@ -15,7 +15,7 @@...@@ -15,7 +15,7 @@
15// CHECK-NEXT: Address: [[RELA:.*]]15// CHECK-NEXT: Address: [[RELA:.*]]
16// CHECK-NEXT: Offset: 0x15816// CHECK-NEXT: Offset: 0x158
17// CHECK-NEXT: Size: 4817// CHECK-NEXT: Size: 48
18// CHECK-NEXT: Link: 618// CHECK-NEXT: Link: 0
19// CHECK-NEXT: Info: 019// CHECK-NEXT: Info: 0
20// CHECK-NEXT: AddressAlignment: 820// CHECK-NEXT: AddressAlignment: 8
21// CHECK-NEXT: EntrySize: 2421// CHECK-NEXT: EntrySize: 24
...@@ -102,10 +102,10 @@...@@ -102,10 +102,10 @@
102// DISASM-NEXT: .plt:102// DISASM-NEXT: .plt:
103// DISASM-NEXT: 201020: {{.*}} jmpq *4058(%rip)103// DISASM-NEXT: 201020: {{.*}} jmpq *4058(%rip)
104// DISASM-NEXT: 201026: {{.*}} pushq $0104// DISASM-NEXT: 201026: {{.*}} pushq $0
105// DISASM-NEXT: 20102b: {{.*}} jmp -32 <_start+0xE>105// DISASM-NEXT: 20102b: {{.*}} jmp -32 <_start+0xe>
106// DISASM-NEXT: 201030: {{.*}} jmpq *4050(%rip)106// DISASM-NEXT: 201030: {{.*}} jmpq *4050(%rip)
107// DISASM-NEXT: 201036: {{.*}} pushq $1107// DISASM-NEXT: 201036: {{.*}} pushq $1
108// DISASM-NEXT: 20103b: {{.*}} jmp -48 <_start+0xE>108// DISASM-NEXT: 20103b: {{.*}} jmp -48 <_start+0xe>
109109
110.text110.text
111.type foo STT_GNU_IFUNC111.type foo STT_GNU_IFUNC
deps/lld/test/ELF/got-aarch64.s+1-1
...@@ -1,5 +1,5 @@...@@ -1,5 +1,5 @@
1// RUN: llvm-mc -filetype=obj -triple=aarch64-unknown-linux %s -o %t.o1// RUN: llvm-mc -filetype=obj -triple=aarch64-unknown-linux %s -o %t.o
2// RUN: ld.lld -shared %t.o -o %t.so2// RUN: ld.lld --hash-style=sysv -shared %t.o -o %t.so
3// RUN: llvm-readobj -s -r %t.so | FileCheck %s3// RUN: llvm-readobj -s -r %t.so | FileCheck %s
4// RUN: llvm-objdump -d %t.so | FileCheck --check-prefix=DISASM %s4// RUN: llvm-objdump -d %t.so | FileCheck --check-prefix=DISASM %s
5// REQUIRES: aarch645// REQUIRES: aarch64
deps/lld/test/ELF/got.s+1-1
...@@ -1,7 +1,7 @@...@@ -1,7 +1,7 @@
1// RUN: llvm-mc -filetype=obj -triple=x86_64-unknown-linux %s -o %t.o1// RUN: llvm-mc -filetype=obj -triple=x86_64-unknown-linux %s -o %t.o
2// RUN: llvm-mc -filetype=obj -triple=x86_64-unknown-linux %p/Inputs/shared.s -o %t2.o2// RUN: llvm-mc -filetype=obj -triple=x86_64-unknown-linux %p/Inputs/shared.s -o %t2.o
3// RUN: ld.lld -shared %t2.o -o %t2.so3// RUN: ld.lld -shared %t2.o -o %t2.so
4// RUN: ld.lld %t.o %t2.so -o %t4// RUN: ld.lld --hash-style=sysv %t.o %t2.so -o %t
5// RUN: llvm-readobj -s -r %t | FileCheck %s5// RUN: llvm-readobj -s -r %t | FileCheck %s
6// RUN: llvm-objdump -d %t | FileCheck --check-prefix=DISASM %s6// RUN: llvm-objdump -d %t | FileCheck --check-prefix=DISASM %s
7// REQUIRES: x867// REQUIRES: x86
deps/lld/test/ELF/got32-i386-pie-rw.s created+17
...@@ -0,0 +1,17 @@
1# REQUIRES: x86
2# RUN: llvm-mc -filetype=obj -triple=i686-pc-linux %s -o %t.o
3# RUN: ld.lld %t.o -o %t -pie
4# RUN: llvm-readelf -r -s %t | FileCheck %s
5
6# Unlike bfd and gold we accept this.
7
8# CHECK: .foobar PROGBITS 00001000
9# CHECK: .got PROGBITS [[GOT:[0-9a-z]*]]
10# CHECK: [[GOT]] 00000008 R_386_RELATIVE
11# CHECK: 00001002 00000008 R_386_RELATIVE
12foo:
13
14.section .foobar, "awx"
15.global _start
16_start:
17 movl foo@GOT, %ebx
deps/lld/test/ELF/got32-i386.s+1-1
...@@ -20,4 +20,4 @@ _start:...@@ -20,4 +20,4 @@ _start:
20# CHECK: .got 00000004 000000000001200020# CHECK: .got 00000004 0000000000012000
2121
22# RUN: not ld.lld %t.o -o %t -pie 2>&1 | FileCheck %s --check-prefix=ERR22# RUN: not ld.lld %t.o -o %t -pie 2>&1 | FileCheck %s --check-prefix=ERR
23# ERR: relocation R_386_GOT32 against 'foo' without base register can not be used when PIC enabled23# ERR: error: can't create dynamic relocation R_386_GOT32 against symbol: foo in readonly segment; recompile object files with -fPIC
deps/lld/test/ELF/got32x-i386.s+2-2
...@@ -43,5 +43,5 @@...@@ -43,5 +43,5 @@
4343
44# RUN: not ld.lld %S/Inputs/i386-got32x-baseless.elf -o %t1 -pie 2>&1 | \44# RUN: not ld.lld %S/Inputs/i386-got32x-baseless.elf -o %t1 -pie 2>&1 | \
45# RUN: FileCheck %s --check-prefix=ERR45# RUN: FileCheck %s --check-prefix=ERR
46# ERR: relocation R_386_GOT32X against 'foo' without base register can not be used when PIC enabled46# ERR: error: can't create dynamic relocation R_386_GOT32X against symbol: foo in readonly segment; recompile object files with -fPIC
47# ERR: relocation R_386_GOT32X against 'foo' without base register can not be used when PIC enabled47# ERR: error: can't create dynamic relocation R_386_GOT32X against symbol: foo in readonly segment; recompile object files with -fPIC
deps/lld/test/ELF/gotpc-relax-nopic.s+3-3
...@@ -1,6 +1,6 @@...@@ -1,6 +1,6 @@
1# REQUIRES: x861# REQUIRES: x86
2# RUN: llvm-mc -filetype=obj -relax-relocations -triple=x86_64-unknown-linux %s -o %t.o2# RUN: llvm-mc -filetype=obj -relax-relocations -triple=x86_64-unknown-linux %s -o %t.o
3# RUN: ld.lld %t.o -o %t13# RUN: ld.lld --hash-style=sysv %t.o -o %t1
4# RUN: llvm-readobj -symbols -r %t1 | FileCheck --check-prefix=SYMRELOC %s4# RUN: llvm-readobj -symbols -r %t1 | FileCheck --check-prefix=SYMRELOC %s
5# RUN: llvm-objdump -d %t1 | FileCheck --check-prefix=DISASM %s5# RUN: llvm-objdump -d %t1 | FileCheck --check-prefix=DISASM %s
66
...@@ -25,7 +25,7 @@...@@ -25,7 +25,7 @@
25# DISASM-NEXT: 201031: {{.*}} xorq $2105344, %r825# DISASM-NEXT: 201031: {{.*}} xorq $2105344, %r8
26# DISASM-NEXT: 201038: {{.*}} testq $2105344, %r1526# DISASM-NEXT: 201038: {{.*}} testq $2105344, %r15
2727
28# RUN: ld.lld -shared %t.o -o %t228# RUN: ld.lld --hash-style=sysv -shared %t.o -o %t2
29# RUN: llvm-readobj -s -r -d %t2 | FileCheck --check-prefix=SEC-PIC %s29# RUN: llvm-readobj -s -r -d %t2 | FileCheck --check-prefix=SEC-PIC %s
30# RUN: llvm-objdump -d %t2 | FileCheck --check-prefix=DISASM-PIC %s30# RUN: llvm-objdump -d %t2 | FileCheck --check-prefix=DISASM-PIC %s
31# SEC-PIC: Section {31# SEC-PIC: Section {
...@@ -64,7 +64,7 @@...@@ -64,7 +64,7 @@
64# DISASM-PIC-NEXT: 1023: {{.*}} sbbq 8310(%rip), %rsi64# DISASM-PIC-NEXT: 1023: {{.*}} sbbq 8310(%rip), %rsi
65# DISASM-PIC-NEXT: 102a: {{.*}} subq 8303(%rip), %rbp65# DISASM-PIC-NEXT: 102a: {{.*}} subq 8303(%rip), %rbp
66# DISASM-PIC-NEXT: 1031: {{.*}} xorq 8296(%rip), %r866# DISASM-PIC-NEXT: 1031: {{.*}} xorq 8296(%rip), %r8
67# DISASM-PIC-NEXT: 1038: {{.*}} testq 8289(%rip), %r1567# DISASM-PIC-NEXT: 1038: {{.*}} testq %r15, 8289(%rip)
6868
69.data69.data
70.type bar, @object70.type bar, @object
deps/lld/test/ELF/gotpc-relax-und-dso.s+1-1
...@@ -2,7 +2,7 @@...@@ -2,7 +2,7 @@
2# RUN: llvm-mc -filetype=obj -relax-relocations -triple=x86_64-unknown-linux %s -o %t.o2# RUN: llvm-mc -filetype=obj -relax-relocations -triple=x86_64-unknown-linux %s -o %t.o
3# RUN: llvm-mc -filetype=obj -relax-relocations -triple=x86_64-pc-linux %S/Inputs/gotpc-relax-und-dso.s -o %tdso.o3# RUN: llvm-mc -filetype=obj -relax-relocations -triple=x86_64-pc-linux %S/Inputs/gotpc-relax-und-dso.s -o %tdso.o
4# RUN: ld.lld -shared %tdso.o -o %t.so4# RUN: ld.lld -shared %tdso.o -o %t.so
5# RUN: ld.lld -shared %t.o %t.so -o %tout5# RUN: ld.lld --hash-style=sysv -shared %t.o %t.so -o %tout
6# RUN: llvm-readobj -r -s %tout | FileCheck --check-prefix=RELOC %s6# RUN: llvm-readobj -r -s %tout | FileCheck --check-prefix=RELOC %s
7# RUN: llvm-objdump -d %tout | FileCheck --check-prefix=DISASM %s7# RUN: llvm-objdump -d %tout | FileCheck --check-prefix=DISASM %s
88
deps/lld/test/ELF/gotpcrelx.s+1-1
...@@ -1,7 +1,7 @@...@@ -1,7 +1,7 @@
1// RUN: llvm-mc -filetype=obj -relax-relocations -triple x86_64-pc-linux-gnu \1// RUN: llvm-mc -filetype=obj -relax-relocations -triple x86_64-pc-linux-gnu \
2// RUN: %s -o %t.o2// RUN: %s -o %t.o
3// RUN: llvm-readobj -r %t.o | FileCheck --check-prefix=RELS %s3// RUN: llvm-readobj -r %t.o | FileCheck --check-prefix=RELS %s
4// RUN: ld.lld %t.o -o %t.so -shared4// RUN: ld.lld --hash-style=sysv %t.o -o %t.so -shared
5// RUN: llvm-readobj -s -r %t.so | FileCheck %s5// RUN: llvm-readobj -s -r %t.so | FileCheck %s
66
7movq foo@GOTPCREL(%rip), %rax7movq foo@GOTPCREL(%rip), %rax
deps/lld/test/ELF/help.s created+5
...@@ -0,0 +1,5 @@
1# RUN: ld.lld --help 2>&1 | FileCheck %s
2# CHECK: OPTIONS:
3# CHECK: --output=<value> Path to file to write output
4# CHECK: --output <value> Path to file to write output
5# CHECK: -o <path> Path to file to write output
deps/lld/test/ELF/i386-debug-noabs.test created+33
...@@ -0,0 +1,33 @@
1# REQUIRES: x86
2
3# RUN: yaml2obj %s -o %t.o
4# RUN: ld.lld %t.o -o %t.exe
5
6## This is for https://bugs.llvm.org//show_bug.cgi?id=34852. GCC 8.0 or
7## earlier have a bug which creates non-absolute R_386_GOTPC relocations
8## in non-allocated sections. It is illegal, but we want to make sure that
9## lld skips them instead of reporting errors.
10
11--- !ELF
12FileHeader:
13 Class: ELFCLASS32
14 Data: ELFDATA2LSB
15 Type: ET_REL
16 Machine: EM_386
17Sections:
18 - Name: .debug_info
19 Type: SHT_PROGBITS
20 AddressAlign: 0x0000000000000001
21 Content: 0000000000000000
22 - Name: .rel.debug_info
23 Type: SHT_REL
24 Link: .symtab
25 AddressAlign: 0x0000000000000004
26 Info: .debug_info
27 Relocations:
28 - Offset: 0x000000000000041F
29 Symbol: _GLOBAL_OFFSET_TABLE_
30 Type: R_386_GOTPC
31Symbols:
32 Global:
33 - Name: _GLOBAL_OFFSET_TABLE_
deps/lld/test/ELF/i386-got-and-copy.s+1-1
...@@ -9,7 +9,7 @@...@@ -9,7 +9,7 @@
9# RUN: %S/Inputs/copy-in-shared.s -o %t.so.o9# RUN: %S/Inputs/copy-in-shared.s -o %t.so.o
10# RUN: llvm-mc -filetype=obj -triple=i386-pc-linux %s -o %t.o10# RUN: llvm-mc -filetype=obj -triple=i386-pc-linux %s -o %t.o
11# RUN: ld.lld %t.so.o -shared -o %t.so11# RUN: ld.lld %t.so.o -shared -o %t.so
12# RUN: ld.lld %t.o %t.so -o %t.exe12# RUN: ld.lld --hash-style=sysv %t.o %t.so -o %t.exe
13# RUN: llvm-readobj -r %t.exe | FileCheck %s13# RUN: llvm-readobj -r %t.exe | FileCheck %s
1414
15# CHECK: Relocations [15# CHECK: Relocations [
deps/lld/test/ELF/i386-got-value.s created+33
...@@ -0,0 +1,33 @@
1# RUN: llvm-mc %s -o %t.o -filetype=obj -triple=i386-pc-linux
2# RUN: ld.lld %t.o -o %t.so -shared
3# RUN: llvm-readobj --relocations --sections --section-data %t.so | FileCheck %s
4
5# Check that the value of a preemptible symbol is not written to the
6# got entry when using Elf_Rel. It is not needed since the dynamic
7# linker will write the final value.
8
9# CHECK: Name: .got
10# CHECK-NEXT: Type: SHT_PROGBITS
11# CHECK-NEXT: Flags [
12# CHECK-NEXT: SHF_ALLOC
13# CHECK-NEXT: SHF_WRITE
14# CHECK-NEXT: ]
15# CHECK-NEXT: Address:
16# CHECK-NEXT: Offset:
17# CHECK-NEXT: Size: 4
18# CHECK-NEXT: Link:
19# CHECK-NEXT: Info:
20# CHECK-NEXT: AddressAlignment:
21# CHECK-NEXT: EntrySize:
22# CHECK-NEXT: SectionData (
23# CHECK-NEXT: 0000: 00000000
24# CHECK-NEXT: )
25
26# CHECK: R_386_GLOB_DAT bar 0x0
27
28 movl bar@GOT(%eax), %eax
29
30 .data
31 .globl bar
32bar:
33 .long 42
deps/lld/test/ELF/i386-gotoff-shared.s+1-1
...@@ -1,6 +1,6 @@...@@ -1,6 +1,6 @@
1// REQUIRES: x861// REQUIRES: x86
2// RUN: llvm-mc -filetype=obj -triple=i686-pc-linux %s -o %t.o2// RUN: llvm-mc -filetype=obj -triple=i686-pc-linux %s -o %t.o
3// RUN: ld.lld %t.o -o %t.so -shared3// RUN: ld.lld --hash-style=sysv %t.o -o %t.so -shared
4// RUN: llvm-readobj -s %t.so | FileCheck %s4// RUN: llvm-readobj -s %t.so | FileCheck %s
5// RUN: llvm-objdump -d %t.so | FileCheck --check-prefix=DISASM %s5// RUN: llvm-objdump -d %t.so | FileCheck --check-prefix=DISASM %s
66
deps/lld/test/ELF/i386-gotpc-dynamic.s+1-1
...@@ -1,6 +1,6 @@...@@ -1,6 +1,6 @@
1# REQUIRES: x861# REQUIRES: x86
2# RUN: llvm-mc -filetype=obj -triple=i686-pc-linux %s -o %t.o2# RUN: llvm-mc -filetype=obj -triple=i686-pc-linux %s -o %t.o
3# RUN: ld.lld %t.o -o %t.so -shared3# RUN: ld.lld --hash-style=sysv %t.o -o %t.so -shared
4# RUN: llvm-readobj -s %t.so | FileCheck %s4# RUN: llvm-readobj -s %t.so | FileCheck %s
5# RUN: llvm-objdump -d %t.so | FileCheck --check-prefix=DISASM %s5# RUN: llvm-objdump -d %t.so | FileCheck --check-prefix=DISASM %s
66
deps/lld/test/ELF/i386-gotpc.s+1-1
...@@ -1,6 +1,6 @@...@@ -1,6 +1,6 @@
1// REQUIRES: x861// REQUIRES: x86
2// RUN: llvm-mc -filetype=obj -triple=i686-pc-linux %s -o %t.o2// RUN: llvm-mc -filetype=obj -triple=i686-pc-linux %s -o %t.o
3// RUN: ld.lld %t.o -o %t.so -shared3// RUN: ld.lld --hash-style=sysv %t.o -o %t.so -shared
4// RUN: llvm-readobj -s %t.so | FileCheck %s4// RUN: llvm-readobj -s %t.so | FileCheck %s
5// RUN: llvm-objdump -d %t.so | FileCheck --check-prefix=DISASM %s5// RUN: llvm-objdump -d %t.so | FileCheck --check-prefix=DISASM %s
66
deps/lld/test/ELF/i386-pc8-pc16-addend.s+1-1
...@@ -4,7 +4,7 @@...@@ -4,7 +4,7 @@
4# RUN: ld.lld %t1.o -o %t.out4# RUN: ld.lld %t1.o -o %t.out
5# RUN: llvm-objdump -s -t %t.out | FileCheck %s5# RUN: llvm-objdump -s -t %t.out | FileCheck %s
6# CHECK: Contents of section .text:6# CHECK: Contents of section .text:
7# CHECK-NEXT: 11000 020000 7# CHECK-NEXT: 11000 020000
8## 0x11003 - 0x11000 + addend(-1) = 0x028## 0x11003 - 0x11000 + addend(-1) = 0x02
9## 0x11003 - 0x11001 + addend(-2) = 0x00009## 0x11003 - 0x11001 + addend(-2) = 0x0000
10# CHECK: SYMBOL TABLE:10# CHECK: SYMBOL TABLE:
deps/lld/test/ELF/i386-reloc-16.s+1-1
...@@ -9,6 +9,6 @@...@@ -9,6 +9,6 @@
9// CHECK-NEXT: 200000 429// CHECK-NEXT: 200000 42
1010
11// RUN: not ld.lld -shared %t %t2 -o %t4 2>&1 | FileCheck --check-prefix=ERROR %s11// RUN: not ld.lld -shared %t %t2 -o %t4 2>&1 | FileCheck --check-prefix=ERROR %s
12// ERROR: relocation R_386_16 out of range12// ERROR: relocation R_386_16 out of range: 65536 is not in [0, 65535]
1313
14.short foo14.short foo
deps/lld/test/ELF/i386-reloc-8.s+1-1
...@@ -9,6 +9,6 @@...@@ -9,6 +9,6 @@
9// CHECK-NEXT: 200000 429// CHECK-NEXT: 200000 42
1010
11// RUN: not ld.lld -shared %t %t2 -o %t4 2>&1 | FileCheck --check-prefix=ERROR %s11// RUN: not ld.lld -shared %t %t2 -o %t4 2>&1 | FileCheck --check-prefix=ERROR %s
12// ERROR: relocation R_386_8 out of range12// ERROR: relocation R_386_8 out of range: 256 is not in [0, 255]
1313
14.byte foo14.byte foo
deps/lld/test/ELF/i386-reloc-range.s+1-1
...@@ -16,7 +16,7 @@...@@ -16,7 +16,7 @@
1616
17// RUN: not ld.lld -Ttext 0x200 %t.o %t2.o -o %t2 2>&1 | FileCheck --check-prefix=ERR %s17// RUN: not ld.lld -Ttext 0x200 %t.o %t2.o -o %t2 2>&1 | FileCheck --check-prefix=ERR %s
1818
19// ERR: {{.*}}:(.text+0x1): relocation R_386_PC16 out of range19// ERR: {{.*}}:(.text+0x1): relocation R_386_PC16 out of range: 65536 is not in [-65536, 65535]
2020
21 .global _start21 .global _start
22_start:22_start:
deps/lld/test/ELF/i386-reloc8-reloc16-addend.s+1-1
...@@ -4,7 +4,7 @@...@@ -4,7 +4,7 @@
4# RUN: ld.lld -Ttext=0x0 %t1.o -o %t.out4# RUN: ld.lld -Ttext=0x0 %t1.o -o %t.out
5# RUN: llvm-objdump -s -t %t.out | FileCheck %s5# RUN: llvm-objdump -s -t %t.out | FileCheck %s
6# CHECK: Contents of section .text:6# CHECK: Contents of section .text:
7# CHECK-NEXT: 0000 020100 7# CHECK-NEXT: 0000 020100
8## 0x3 + addend(-1) = 0x028## 0x3 + addend(-1) = 0x02
9## 0x3 + addend(-2) = 0x01009## 0x3 + addend(-2) = 0x0100
10# CHECK: SYMBOL TABLE:10# CHECK: SYMBOL TABLE:
deps/lld/test/ELF/i386-tls-ie-shared.s+1-1
...@@ -1,7 +1,7 @@...@@ -1,7 +1,7 @@
1// RUN: llvm-mc -filetype=obj -triple=i686-pc-linux %s -o %t.o1// RUN: llvm-mc -filetype=obj -triple=i686-pc-linux %s -o %t.o
2// RUN: llvm-mc -filetype=obj -triple=i686-pc-linux %p/Inputs/tls-opt-iele-i686-nopic.s -o %tso.o2// RUN: llvm-mc -filetype=obj -triple=i686-pc-linux %p/Inputs/tls-opt-iele-i686-nopic.s -o %tso.o
3// RUN: ld.lld -shared %tso.o -o %tso3// RUN: ld.lld -shared %tso.o -o %tso
4// RUN: ld.lld -shared %t.o %tso -o %t14// RUN: ld.lld --hash-style=sysv -shared %t.o %tso -o %t1
5// RUN: llvm-readobj -s -r -d %t1 | FileCheck --check-prefix=GOTRELSHARED %s5// RUN: llvm-readobj -s -r -d %t1 | FileCheck --check-prefix=GOTRELSHARED %s
6// RUN: llvm-objdump -d %t1 | FileCheck --check-prefix=DISASMSHARED %s6// RUN: llvm-objdump -d %t1 | FileCheck --check-prefix=DISASMSHARED %s
77
deps/lld/test/ELF/i386-tls-initial-exec-local.s created+36
...@@ -0,0 +1,36 @@
1# REQUIRES: x86
2# RUN: llvm-mc %s -o %t.o -filetype=obj -triple=i386-pc-linux
3# RUN: ld.lld %t.o -o %t.so -shared
4# RUN: llvm-readobj --relocations --sections --section-data %t.so | FileCheck %s
5
6# Check initial exec access to a local symbol.
7
8# CHECK: Name: .got (
9# CHECK-NEXT: Type:
10# CHECK-NEXT: Flags [
11# CHECK-NEXT: SHF_ALLOC
12# CHECK-NEXT: SHF_WRITE
13# CHECK-NEXT: ]
14# CHECK-NEXT: Address:
15# CHECK-NEXT: Offset:
16# CHECK-NEXT: Size: 8
17# CHECK-NEXT: Link:
18# CHECK-NEXT: Info:
19# CHECK-NEXT: AddressAlignment:
20# CHECK-NEXT: EntrySize:
21# CHECK-NEXT: SectionData (
22# CHECK-NEXT: 0000: 00000000 04000000
23# CHECK-NEXT: )
24
25# CHECK: R_386_TLS_TPOFF - 0x0
26# CHECK-NEXT: R_386_TLS_TPOFF - 0x0
27
28 movl bar1@GOTNTPOFF(%eax), %ecx
29 movl bar2@GOTNTPOFF(%eax), %eax
30
31 .section .tdata,"awT",@progbits
32bar1:
33 .long 42
34
35bar2:
36 .long 42
deps/lld/test/ELF/icf-absolute.s+1-1
...@@ -2,7 +2,7 @@...@@ -2,7 +2,7 @@
22
3# RUN: llvm-mc -filetype=obj -triple=x86_64-unknown-linux %s -o %t3# RUN: llvm-mc -filetype=obj -triple=x86_64-unknown-linux %s -o %t
4# RUN: llvm-mc -filetype=obj -triple=x86_64-unknown-linux %S/Inputs/icf-absolute.s -o %t24# RUN: llvm-mc -filetype=obj -triple=x86_64-unknown-linux %S/Inputs/icf-absolute.s -o %t2
5# RUN: ld.lld %t %t2 -o %t3 --icf=all --verbose | FileCheck %s5# RUN: ld.lld %t %t2 -o %t3 --icf=all --verbose 2>&1 | FileCheck %s
66
7# CHECK: selected .text.f17# CHECK: selected .text.f1
8# CHECK: removed .text.f28# CHECK: removed .text.f2
deps/lld/test/ELF/icf-comdat.s+1-1
...@@ -1,7 +1,7 @@...@@ -1,7 +1,7 @@
1# REQUIRES: x861# REQUIRES: x86
22
3# RUN: llvm-mc -filetype=obj -triple=x86_64-unknown-linux %s -o %t3# RUN: llvm-mc -filetype=obj -triple=x86_64-unknown-linux %s -o %t
4# RUN: ld.lld %t -o %t2 --icf=all --verbose | FileCheck %s4# RUN: ld.lld %t -o %t2 --icf=all --verbose 2>&1 | FileCheck %s
55
6# CHECK: selected .text.f16# CHECK: selected .text.f1
7# CHECK: removed .text.f27# CHECK: removed .text.f2
deps/lld/test/ELF/icf-i386.s+1-1
...@@ -2,7 +2,7 @@...@@ -2,7 +2,7 @@
2# This test is to make sure that we can handle implicit addends properly.2# This test is to make sure that we can handle implicit addends properly.
33
4# RUN: llvm-mc -filetype=obj -triple=i386-unknown-linux %s -o %t4# RUN: llvm-mc -filetype=obj -triple=i386-unknown-linux %s -o %t
5# RUN: ld.lld %t -o %t2 --icf=all --verbose | FileCheck %s5# RUN: ld.lld %t -o %t2 --icf=all --verbose 2>&1 | FileCheck %s
66
7# CHECK: selected .text.f17# CHECK: selected .text.f1
8# CHECK: removed .text.f28# CHECK: removed .text.f2
deps/lld/test/ELF/icf-merge-sec.s+1-1
...@@ -2,7 +2,7 @@...@@ -2,7 +2,7 @@
22
3# RUN: llvm-mc -filetype=obj -triple=x86_64-unknown-linux %s -o %t3# RUN: llvm-mc -filetype=obj -triple=x86_64-unknown-linux %s -o %t
4# RUN: llvm-mc -filetype=obj -triple=x86_64-unknown-linux %S/Inputs/icf-merge-sec.s -o %t24# RUN: llvm-mc -filetype=obj -triple=x86_64-unknown-linux %S/Inputs/icf-merge-sec.s -o %t2
5# RUN: ld.lld %t %t2 -o %t3 --icf=all --verbose | FileCheck %s5# RUN: ld.lld %t %t2 -o %t3 --icf=all --verbose 2>&1 | FileCheck %s
66
7# CHECK: selected .text.f17# CHECK: selected .text.f1
8# CHECK: removed .text.f28# CHECK: removed .text.f2
deps/lld/test/ELF/icf-merge.s+3-3
...@@ -2,13 +2,13 @@...@@ -2,13 +2,13 @@
22
3# RUN: llvm-mc -filetype=obj -triple=x86_64-unknown-linux %s -o %t3# RUN: llvm-mc -filetype=obj -triple=x86_64-unknown-linux %s -o %t
4# RUN: llvm-mc -filetype=obj -triple=x86_64-unknown-linux %S/Inputs/icf-merge.s -o %t14# RUN: llvm-mc -filetype=obj -triple=x86_64-unknown-linux %S/Inputs/icf-merge.s -o %t1
5# RUN: ld.lld %t %t1 -o %t1.out --icf=all --verbose | FileCheck %s5# RUN: ld.lld %t %t1 -o %t1.out --icf=all --verbose 2>&1 | FileCheck %s
66
7# RUN: llvm-mc -filetype=obj -triple=x86_64-unknown-linux %S/Inputs/icf-merge2.s -o %t27# RUN: llvm-mc -filetype=obj -triple=x86_64-unknown-linux %S/Inputs/icf-merge2.s -o %t2
8# RUN: ld.lld %t %t2 -o %t3.out --icf=all --verbose | FileCheck --check-prefix=NOMERGE %s8# RUN: ld.lld %t %t2 -o %t3.out --icf=all --verbose 2>&1 | FileCheck --check-prefix=NOMERGE %s
99
10# RUN: llvm-mc -filetype=obj -triple=x86_64-unknown-linux %S/Inputs/icf-merge3.s -o %t310# RUN: llvm-mc -filetype=obj -triple=x86_64-unknown-linux %S/Inputs/icf-merge3.s -o %t3
11# RUN: ld.lld %t %t3 -o %t3.out --icf=all --verbose | FileCheck --check-prefix=NOMERGE %s11# RUN: ld.lld %t %t3 -o %t3.out --icf=all --verbose 2>&1 | FileCheck --check-prefix=NOMERGE %s
1212
13# CHECK: selected .text.f113# CHECK: selected .text.f1
14# CHECK: removed .text.f214# CHECK: removed .text.f2
deps/lld/test/ELF/icf-non-mergeable.s+2-2
...@@ -1,14 +1,14 @@...@@ -1,14 +1,14 @@
1// REQUIRES: x861// REQUIRES: x86
22
3// This file contains two functions. They are themselves identical,3// This file contains two functions. They are themselves identical,
4// but because they have reloactions against different data section,4// but because they have relocations against different data sections,
5// they are not mergeable.5// they are not mergeable.
66
7// RUN: llvm-mc -filetype=obj -triple=x86_64-unknown-linux %s -o %t17// RUN: llvm-mc -filetype=obj -triple=x86_64-unknown-linux %s -o %t1
8// RUN: llvm-mc -filetype=obj -triple=x86_64-unknown-linux \8// RUN: llvm-mc -filetype=obj -triple=x86_64-unknown-linux \
9// RUN: %p/Inputs/icf-non-mergeable.s -o %t29// RUN: %p/Inputs/icf-non-mergeable.s -o %t2
1010
11// RUN: ld.lld %t1 %t2 -o %t3 --icf=all --verbose | FileCheck %s11// RUN: ld.lld %t1 %t2 -o %t3 --icf=all --verbose 2>&1 | FileCheck %s
1212
13// CHECK-NOT: selected .text.f113// CHECK-NOT: selected .text.f1
14// CHECK-NOT: removed .text.f214// CHECK-NOT: removed .text.f2
deps/lld/test/ELF/icf-none.s+1-1
...@@ -1,7 +1,7 @@...@@ -1,7 +1,7 @@
1# REQUIRES: x861# REQUIRES: x86
22
3# RUN: llvm-mc -filetype=obj -triple=x86_64-unknown-linux %s -o %t3# RUN: llvm-mc -filetype=obj -triple=x86_64-unknown-linux %s -o %t
4# RUN: ld.lld %t -o %t2 --icf=all --icf=none --verbose | FileCheck %s4# RUN: ld.lld %t -o %t2 --icf=all --icf=none --verbose 2>&1 | FileCheck %s
55
6# CHECK-NOT: selected .text.f16# CHECK-NOT: selected .text.f1
77
deps/lld/test/ELF/icf-symbol-type.s created+26
...@@ -0,0 +1,26 @@
1# REQUIRES: x86
2
3# RUN: llvm-mc -filetype=obj -triple=x86_64-pc-linux %s -o %t.o
4# RUN: ld.lld --hash-style=sysv %t.o -o %t --icf=all -shared
5# RUN: llvm-readelf --dyn-symbols --sections %t | FileCheck %s
6
7# We used to mark bar as absolute.
8
9# CHECK: .text PROGBITS 0000000000001000
10# CHECK: 0000000000001001 0 NOTYPE GLOBAL DEFAULT 4 foo
11# CHECK: 0000000000001001 0 NOTYPE GLOBAL DEFAULT 4 bar
12
13# The nop makes the test more interesting by making the offset of
14# text.f non zero.
15
16nop
17
18 .section .text.f,"ax",@progbits
19 .globl foo
20foo:
21 retq
22
23 .section .text.g,"ax",@progbits
24 .globl bar
25bar:
26 retq
deps/lld/test/ELF/icf1.s+1-1
...@@ -1,7 +1,7 @@...@@ -1,7 +1,7 @@
1# REQUIRES: x861# REQUIRES: x86
22
3# RUN: llvm-mc -filetype=obj -triple=x86_64-unknown-linux %s -o %t3# RUN: llvm-mc -filetype=obj -triple=x86_64-unknown-linux %s -o %t
4# RUN: ld.lld %t -o %t2 --icf=all --verbose | FileCheck %s4# RUN: ld.lld %t -o %t2 --icf=all --verbose 2>&1 | FileCheck %s
55
6# CHECK: selected .text.f16# CHECK: selected .text.f1
7# CHECK: removed .text.f27# CHECK: removed .text.f2
deps/lld/test/ELF/icf2.s+1-1
...@@ -2,7 +2,7 @@...@@ -2,7 +2,7 @@
22
3# RUN: llvm-mc -filetype=obj -triple=x86_64-unknown-linux %s -o %t13# RUN: llvm-mc -filetype=obj -triple=x86_64-unknown-linux %s -o %t1
4# RUN: llvm-mc -filetype=obj -triple=x86_64-unknown-linux %p/Inputs/icf2.s -o %t24# RUN: llvm-mc -filetype=obj -triple=x86_64-unknown-linux %p/Inputs/icf2.s -o %t2
5# RUN: ld.lld %t1 %t2 -o %t --icf=all --verbose | FileCheck %s5# RUN: ld.lld %t1 %t2 -o %t --icf=all --verbose 2>&1 | FileCheck %s
66
7# CHECK: selected .text.f17# CHECK: selected .text.f1
8# CHECK: removed .text.f28# CHECK: removed .text.f2
deps/lld/test/ELF/icf3.s+1-1
...@@ -2,7 +2,7 @@...@@ -2,7 +2,7 @@
22
3# RUN: llvm-mc -filetype=obj -triple=x86_64-unknown-linux %s -o %t13# RUN: llvm-mc -filetype=obj -triple=x86_64-unknown-linux %s -o %t1
4# RUN: llvm-mc -filetype=obj -triple=x86_64-unknown-linux %p/Inputs/icf2.s -o %t24# RUN: llvm-mc -filetype=obj -triple=x86_64-unknown-linux %p/Inputs/icf2.s -o %t2
5# RUN: ld.lld %t1 %t2 -o %t --icf=all --verbose | FileCheck %s5# RUN: ld.lld %t1 %t2 -o %t --icf=all --verbose 2>&1 | FileCheck %s
66
7# CHECK-NOT: Selected .text.f17# CHECK-NOT: Selected .text.f1
8# CHECK-NOT: Selected .text.f28# CHECK-NOT: Selected .text.f2
deps/lld/test/ELF/icf4.s+1-1
...@@ -1,7 +1,7 @@...@@ -1,7 +1,7 @@
1# REQUIRES: x861# REQUIRES: x86
22
3# RUN: llvm-mc -filetype=obj -triple=x86_64-unknown-linux %s -o %t3# RUN: llvm-mc -filetype=obj -triple=x86_64-unknown-linux %s -o %t
4# RUN: ld.lld %t -o %t2 --icf=all --verbose | FileCheck %s4# RUN: ld.lld %t -o %t2 --icf=all --verbose 2>&1 | FileCheck %s
55
6# CHECK-NOT: Selected .text.f16# CHECK-NOT: Selected .text.f1
7# CHECK-NOT: Selected .text.f27# CHECK-NOT: Selected .text.f2
deps/lld/test/ELF/icf5.s+1-1
...@@ -1,7 +1,7 @@...@@ -1,7 +1,7 @@
1# REQUIRES: x861# REQUIRES: x86
22
3# RUN: llvm-mc -filetype=obj -triple=x86_64-unknown-linux %s -o %t3# RUN: llvm-mc -filetype=obj -triple=x86_64-unknown-linux %s -o %t
4# RUN: ld.lld %t -o %t2 --icf=all --verbose | FileCheck %s4# RUN: ld.lld %t -o %t2 --icf=all --verbose 2>&1 | FileCheck %s
55
6# CHECK-NOT: Selected .text.f16# CHECK-NOT: Selected .text.f1
7# CHECK-NOT: Selected .text.f27# CHECK-NOT: Selected .text.f2
deps/lld/test/ELF/icf6.s+1-1
...@@ -1,7 +1,7 @@...@@ -1,7 +1,7 @@
1# REQUIRES: x861# REQUIRES: x86
22
3# RUN: llvm-mc -filetype=obj -triple=x86_64-unknown-linux %s -o %t3# RUN: llvm-mc -filetype=obj -triple=x86_64-unknown-linux %s -o %t
4# RUN: ld.lld %t -o %t2 --icf=all --verbose | FileCheck %s4# RUN: ld.lld %t -o %t2 --icf=all --verbose 2>&1 | FileCheck %s
55
6# CHECK-NOT: Selected .text.f16# CHECK-NOT: Selected .text.f1
7# CHECK-NOT: Selected .text.f27# CHECK-NOT: Selected .text.f2
deps/lld/test/ELF/icf7.s+1-1
...@@ -1,7 +1,7 @@...@@ -1,7 +1,7 @@
1# REQUIRES: x861# REQUIRES: x86
22
3# RUN: llvm-mc -filetype=obj -triple=x86_64-unknown-linux %s -o %t3# RUN: llvm-mc -filetype=obj -triple=x86_64-unknown-linux %s -o %t
4# RUN: ld.lld %t -o %t2 --icf=all --verbose | FileCheck %s4# RUN: ld.lld %t -o %t2 --icf=all --verbose 2>&1 | FileCheck %s
5# RUN: llvm-objdump -t %t2 | FileCheck -check-prefix=ALIGN %s5# RUN: llvm-objdump -t %t2 | FileCheck -check-prefix=ALIGN %s
66
7# CHECK: selected .text.f17# CHECK: selected .text.f1
deps/lld/test/ELF/icf9.s+17-5
...@@ -2,19 +2,31 @@...@@ -2,19 +2,31 @@
22
3### Make sure that we do not merge data.3### Make sure that we do not merge data.
4# RUN: llvm-mc -filetype=obj -triple=x86_64-unknown-linux %s -o %t4# RUN: llvm-mc -filetype=obj -triple=x86_64-unknown-linux %s -o %t
5# RUN: ld.lld %t -o %t2 --icf=all --verbose | FileCheck %s5# RUN: ld.lld %t -o %t2 --icf=all --verbose 2>&1 | FileCheck %s
6# RUN: llvm-readelf -S -W %t2 | FileCheck --check-prefix=SEC %s
67
7# CHECK-NOT: selected .data.d18# SEC: .rodata PROGBITS 0000000000200120 000120 000002 00 A 0 0 1
8# CHECK-NOT: selected .data.d29
10# CHECK-NOT: selected .rodata.d1
11# CHECK-NOT: selected .rodata.d2
12
13# We do merge rodata if passed --icf-data
14# RUN: ld.lld %t -o %t2 --icf=all --verbose --icf-data 2>&1 | FileCheck --check-prefix=DATA %s
15# RUN: llvm-readelf -S -W %t2 | FileCheck --check-prefix=DATA-SEC %s
16
17# DATA: selected .rodata.d1
18# DATA: removed .rodata.d2
19
20# DATA-SEC: .rodata PROGBITS 0000000000200120 000120 000001 00 A 0 0 1
921
10.globl _start, d1, d222.globl _start, d1, d2
11_start:23_start:
12 ret24 ret
1325
14.section .data.f1, "a"26.section .rodata.d1, "a"
15d1:27d1:
16 .byte 128 .byte 1
1729
18.section .data.f2, "a"30.section .rodata.d2, "a"
19d2:31d2:
20 .byte 132 .byte 1
deps/lld/test/ELF/image-base.s+5-2
...@@ -6,6 +6,9 @@...@@ -6,6 +6,9 @@
6# RUN: ld.lld -image-base=0x1000 -z max-page-size=0x2000 %t -o %t1 2>&1 | FileCheck --check-prefix=WARN %s6# RUN: ld.lld -image-base=0x1000 -z max-page-size=0x2000 %t -o %t1 2>&1 | FileCheck --check-prefix=WARN %s
7# WARN: warning: -image-base: address isn't multiple of page size: 0x10007# WARN: warning: -image-base: address isn't multiple of page size: 0x1000
88
9# Check alias.
10# RUN: ld.lld -image-base 0x1000000 %t -o %t1
11# RUN: llvm-readobj -program-headers %t1 | FileCheck %s
912
10.global _start13.global _start
11_start:14_start:
...@@ -41,8 +44,8 @@ _start:...@@ -41,8 +44,8 @@ _start:
41# CHECK-NEXT: Offset: 0x100044# CHECK-NEXT: Offset: 0x1000
42# CHECK-NEXT: VirtualAddress: 0x100100045# CHECK-NEXT: VirtualAddress: 0x1001000
43# CHECK-NEXT: PhysicalAddress: 0x100100046# CHECK-NEXT: PhysicalAddress: 0x1001000
44# CHECK-NEXT: FileSize: 147# CHECK-NEXT: FileSize: 4096
45# CHECK-NEXT: MemSize: 148# CHECK-NEXT: MemSize: 4096
46# CHECK-NEXT: Flags [ (0x5)49# CHECK-NEXT: Flags [ (0x5)
47# CHECK-NEXT: PF_R (0x4)50# CHECK-NEXT: PF_R (0x4)
48# CHECK-NEXT: PF_X (0x1)51# CHECK-NEXT: PF_X (0x1)
deps/lld/test/ELF/init_fini_priority.s+18-6
...@@ -1,34 +1,46 @@...@@ -1,34 +1,46 @@
1// RUN: llvm-mc -filetype=obj -triple=x86_64-unknown-linux %s -o %t1// RUN: llvm-mc -filetype=obj -triple=x86_64-unknown-linux %s -o %t
2// RUN: llvm-objdump -section-headers %t | FileCheck %s --check-prefix=OBJ
2// RUN: ld.lld %t -o %t.exe3// RUN: ld.lld %t -o %t.exe
3// RUN: llvm-objdump -s %t.exe | FileCheck %s4// RUN: llvm-objdump -s %t.exe | FileCheck %s
4// REQUIRES: x865// REQUIRES: x86
56
7// OBJ: 3 .init_array
8// OBJ-NEXT: 4 .init_array.100
9// OBJ-NEXT: 5 .init_array.5
10// OBJ-NEXT: 6 .init_array
11// OBJ-NEXT: 7 .init_array
12// OBJ-NEXT: 8 .fini_array
13// OBJ-NEXT: 9 .fini_array.100
14// OBJ-NEXT: 10 .fini_array.5
15// OBJ-NEXT: 11 .fini_array
16// OBJ-NEXT: 12 .fini_array
17
6.globl _start18.globl _start
7_start:19_start:
8 nop20 nop
921
10.section .init_array, "aw", @init_array22.section .init_array, "aw", @init_array, unique, 0
11 .align 823 .align 8
12 .byte 124 .byte 1
13.section .init_array.100, "aw", @init_array25.section .init_array.100, "aw", @init_array
14 .long 226 .long 2
15.section .init_array.5, "aw", @init_array27.section .init_array.5, "aw", @init_array
16 .byte 328 .byte 3
17.section .init_array, "aw", @init_array29.section .init_array, "aw", @init_array, unique, 1
18 .byte 430 .byte 4
19.section .init_array, "aw", @init_array31.section .init_array, "aw", @init_array, unique, 2
20 .byte 532 .byte 5
2133
22.section .fini_array, "aw", @fini_array34.section .fini_array, "aw", @fini_array, unique, 0
23 .align 835 .align 8
24 .byte 0x1136 .byte 0x11
25.section .fini_array.100, "aw", @fini_array37.section .fini_array.100, "aw", @fini_array
26 .long 0x1238 .long 0x12
27.section .fini_array.5, "aw", @fini_array39.section .fini_array.5, "aw", @fini_array
28 .byte 0x1340 .byte 0x13
29.section .fini_array, "aw", @fini_array41.section .fini_array, "aw", @fini_array, unique, 1
30 .byte 0x1442 .byte 0x14
31.section .fini_array, "aw", @fini_array43.section .fini_array, "aw", @fini_array, unique, 2
32 .byte 0x1544 .byte 0x15
3345
34// CHECK: Contents of section .init_array:46// CHECK: Contents of section .init_array:
deps/lld/test/ELF/invalid-linkerscript.test+1-1
...@@ -45,7 +45,7 @@...@@ -45,7 +45,7 @@
4545
46# RUN: echo "INCLUDE /no/such/file" > %t746# RUN: echo "INCLUDE /no/such/file" > %t7
47# RUN: not ld.lld %t7 no-such-file 2>&1 | FileCheck -check-prefix=ERR7 %s47# RUN: not ld.lld %t7 no-such-file 2>&1 | FileCheck -check-prefix=ERR7 %s
48# ERR7: cannot open /no/such/file48# ERR7: cannot find linker script /no/such/file
49# ERR7: cannot open no-such-file:49# ERR7: cannot open no-such-file:
5050
51# RUN: echo "OUTPUT_FORMAT(x y z)" > %t851# RUN: echo "OUTPUT_FORMAT(x y z)" > %t8
deps/lld/test/ELF/invalid-local-symbol-in-dso.s created+13
...@@ -0,0 +1,13 @@
1# REQUIRES: x86
2
3# We used to crash on this
4# RUN: ld.lld %p/Inputs/local-symbol-in-dso.so -o %t 2>&1 | \
5# RUN: FileCheck -check-prefix=WARN %s
6# WARN: found local symbol 'foo' in global part of symbol table in file {{.*}}local-symbol-in-dso.so
7
8# RUN: llvm-mc %s -o %t.o -filetype=obj -triple x86_64-pc-linux
9# RUN: not ld.lld %t.o %p/Inputs/local-symbol-in-dso.so -o %t
10
11.globl main
12main:
13 movq foo@GOTTPOFF(%rip), %rax
deps/lld/test/ELF/invalid-undef-section-symbol.test created+27
...@@ -0,0 +1,27 @@
1# RUN: yaml2obj %s -o %t.o
2# RUN: not ld.lld -r %t.o -o %2.o 2>&1 | FileCheck %s
3
4# We used to crash at this.
5# CHECK: STT_SECTION symbol should be defined
6
7--- !ELF
8FileHeader:
9 Class: ELFCLASS64
10 Data: ELFDATA2LSB
11 Type: ET_REL
12 Machine: EM_X86_64
13Sections:
14 - Name: .text
15 Type: SHT_PROGBITS
16 - Name: .rela.text
17 Type: SHT_RELA
18 AddressAlign: 0x0000000000000008
19 Info: .text
20 Relocations:
21 - Offset: 0x0000000000000000
22 Symbol: .text
23 Type: R_X86_64_NONE
24Symbols:
25 Local:
26 - Name: .text
27 Type: STT_SECTION
deps/lld/test/ELF/invalid/Inputs/section-index2.elf deleted
Binary files a/deps/lld/test/ELF/invalid/Inputs/section-index2.elf and /dev/null differ
deps/lld/test/ELF/invalid/invalid-debug-relocations.test+1-2
...@@ -2,8 +2,7 @@...@@ -2,8 +2,7 @@
2# RUN: yaml2obj %s -o %t.o2# RUN: yaml2obj %s -o %t.o
3# RUN: not ld.lld -gdb-index %t.o -o %t.exe 2>&1 | FileCheck %s3# RUN: not ld.lld -gdb-index %t.o -o %t.exe 2>&1 | FileCheck %s
44
5# CHECK: error: {{.*}}.o: error parsing DWARF data:5# CHECK: error: {{.*}}invalid-debug-relocations.test.tmp.o:(.debug_info+0x0): has non-ABS relocation Unknown (255) against symbol '_start'
6# CHECK-NEXT: >>> failed to compute relocation: Unknown, Invalid data was encountered while parsing the file
76
8!ELF7!ELF
9FileHeader:8FileHeader:
deps/lld/test/ELF/invalid/invalid-elf.test-4
...@@ -20,10 +20,6 @@...@@ -20,10 +20,6 @@
20# RUN: FileCheck --check-prefix=INVALID-SECTION-INDEX-LLD %s20# RUN: FileCheck --check-prefix=INVALID-SECTION-INDEX-LLD %s
21# INVALID-SECTION-INDEX-LLD: invalid section index21# INVALID-SECTION-INDEX-LLD: invalid section index
2222
23## section-index2.elf has local symbol with incorrect section index.
24# RUN: not ld.lld %p/Inputs/section-index2.elf -o %t2 2>&1 | \
25# RUN: FileCheck --check-prefix=INVALID-SECTION-INDEX-LLD %s
26
27# RUN: not ld.lld %p/Inputs/multiple-eh-relocs.elf -o %t2 2>&1 | \23# RUN: not ld.lld %p/Inputs/multiple-eh-relocs.elf -o %t2 2>&1 | \
28# RUN: FileCheck --check-prefix=INVALID-EH-RELOCS %s24# RUN: FileCheck --check-prefix=INVALID-EH-RELOCS %s
29# INVALID-EH-RELOCS: multiple relocation sections to one section are not supported25# INVALID-EH-RELOCS: multiple relocation sections to one section are not supported
deps/lld/test/ELF/invalid/invalid-relocation-x64.test+12-6
...@@ -1,7 +1,10 @@...@@ -1,7 +1,10 @@
1# RUN: yaml2obj %s -o %t.o1# REQUIRES: x86
2# RUN: not ld.lld %t.o -o /dev/null 2>&1 | FileCheck %s2# RUN: yaml2obj %s -o %t1.o
3# CHECK: {{.*}}.o: unknown relocation type: Unknown (152)3# RUN: echo ".global foo; foo:" > %t2.s
4# CHECK: {{.*}}.o: unknown relocation type: Unknown (153)4# RUN: llvm-mc %t2.s -o %t2.o -filetype=obj -triple x86_64-pc-linux
5# RUN: not ld.lld %t1.o %t2.o -o /dev/null 2>&1 | FileCheck %s
6# CHECK: error: unrecognized reloc 152
7# CHECK: error: unrecognized reloc 153
58
6!ELF9!ELF
7FileHeader:10FileHeader:
...@@ -20,8 +23,11 @@ Sections:...@@ -20,8 +23,11 @@ Sections:
20 Info: .text23 Info: .text
21 Relocations:24 Relocations:
22 - Offset: 0x000000000000000025 - Offset: 0x0000000000000000
23 Symbol: ''26 Symbol: foo
24 Type: 0x9827 Type: 0x98
25 - Offset: 0x000000000000000028 - Offset: 0x0000000000000000
26 Symbol: ''29 Symbol: foo
27 Type: 0x9930 Type: 0x99
31Symbols:
32 Global:
33 - Name: foo
deps/lld/test/ELF/libsearch.s+1
...@@ -60,6 +60,7 @@...@@ -60,6 +60,7 @@
6060
61// Check long forms as well61// Check long forms as well
62// RUN: ld.lld -o %t3 %t.o --library-path=%t.dir --library=ls62// RUN: ld.lld -o %t3 %t.o --library-path=%t.dir --library=ls
63// RUN: ld.lld -o %t3 %t.o --library-path %t.dir --library ls
6364
64// Should not search for dynamic libraries if -Bstatic is specified65// Should not search for dynamic libraries if -Bstatic is specified
65// RUN: ld.lld -o %t3 %t.o -L%t.dir -Bstatic -lls66// RUN: ld.lld -o %t3 %t.o -L%t.dir -Bstatic -lls
deps/lld/test/ELF/linkerscript/Inputs/common-filespec1.s created+2
...@@ -0,0 +1,2 @@
1.comm common_uniq_1,8,8
2.comm common_multiple,16,8
deps/lld/test/ELF/linkerscript/Inputs/common-filespec2.s created+2
...@@ -0,0 +1,2 @@
1.comm common_uniq_2,16,16
2.comm common_multiple,32,8
deps/lld/test/ELF/linkerscript/Inputs/copy-rel-symbol-value.s created+5
...@@ -0,0 +1,5 @@
1 .global bar
2 .type bar, @object
3 .size bar, 8
4bar:
5 .quad 0
deps/lld/test/ELF/linkerscript/Inputs/provide-shared.s created+5
...@@ -0,0 +1,5 @@
1 .global foo
2 .size foo, 8
3 .type foo, @object
4foo:
5 .quad 42
deps/lld/test/ELF/linkerscript/Inputs/symbol-reserved.script created+5
...@@ -0,0 +1,5 @@
1SECTIONS
2{
3 .text : { *(.text) }
4 PROVIDE_HIDDEN(_end = .);
5}
deps/lld/test/ELF/linkerscript/absolute2.s created+17
...@@ -0,0 +1,17 @@
1# REQUIRES: x86
2# RUN: llvm-mc -filetype=obj -triple=x86_64-unknown-linux %s -o %t.o
3
4# RUN: echo "SECTIONS { .text : { *(.text) } foo = ABSOLUTE(_start) + _start; };" > %t.script
5# RUN: ld.lld -o %t --script %t.script %t.o
6# RUN: llvm-objdump -t %t | FileCheck %s
7
8# RUN: echo "SECTIONS { .text : { *(.text) } foo = _start + ABSOLUTE(_start); };" > %t.script
9# RUN: ld.lld -o %t --script %t.script %t.o
10# RUN: llvm-objdump -t %t | FileCheck %s
11
12# CHECK: 0000000000000001 .text 00000000 _start
13# CHECK: 0000000000000002 .text 00000000 foo
14
15 .global _start
16 nop
17_start:
deps/lld/test/ELF/linkerscript/align-section-offset.s created+11
...@@ -0,0 +1,11 @@
1# REQUIRES: x86
2# RUN: llvm-mc -filetype=obj -triple=x86_64-pc-linux %s -o %t.o
3# RUN: echo "SECTIONS { .foo : ALIGN(2M) { *(.foo) } }" > %t.script
4# RUN: ld.lld -o %t --script %t.script %t.o -shared
5# RUN: llvm-readelf -S -l %t | FileCheck %s
6
7# CHECK: .foo PROGBITS 0000000000200000 200000 000008 00 WA 0 0 2097152
8# CHECK: LOAD 0x200000 0x0000000000200000 0x0000000000200000 {{.*}} RW 0x200000
9
10 .section .foo, "aw"
11 .quad 42
deps/lld/test/ELF/linkerscript/align-section.s created+6
...@@ -0,0 +1,6 @@
1# REQUIRES: x86
2# RUN: llvm-mc -filetype=obj -triple=x86_64-pc-linux %s -o %t.o
3# RUN: echo "SECTIONS { .foo : ALIGN(2M) { } }" > %t.script
4# RUN: ld.lld -o %t --script %t.script %t.o -shared
5
6# We would crash if an empty section had an ALIGN.
deps/lld/test/ELF/linkerscript/align.s+45
...@@ -66,6 +66,51 @@...@@ -66,6 +66,51 @@
66# SYMBOLS-NEXT: 0000000000011000 .bbb 00000000 __start_bbb66# SYMBOLS-NEXT: 0000000000011000 .bbb 00000000 __start_bbb
67# SYMBOLS-NEXT: 0000000000012000 .bbb 00000000 __end_bbb67# SYMBOLS-NEXT: 0000000000012000 .bbb 00000000 __end_bbb
6868
69## Check that ALIGN zero do nothing and does not crash #1.
70# RUN: echo "SECTIONS { . = ALIGN(0x123, 0); .aaa : { *(.aaa) } }" > %t.script
71# RUN: ld.lld -o %t4 --script %t.script %t
72# RUN: llvm-objdump -section-headers %t4 | FileCheck %s -check-prefix=ZERO
73
74# ZERO: Sections:
75# ZERO-NEXT: Idx Name Size Address Type
76# ZERO-NEXT: 0 00000000 0000000000000000
77# ZERO-NEXT: 1 .aaa 00000008 0000000000000123 DATA
78
79## Check that ALIGN zero do nothing and does not crash #2.
80# RUN: echo "SECTIONS { . = 0x123; . = ALIGN(0); .aaa : { *(.aaa) } }" > %t.script
81# RUN: ld.lld -o %t5 --script %t.script %t
82# RUN: llvm-objdump -section-headers %t5 | FileCheck %s -check-prefix=ZERO
83
84## Test we fail gracefuly when alignment value is not a power of 2 (#1).
85# RUN: echo "SECTIONS { . = 0x123; . = ALIGN(0x123, 3); .aaa : { *(.aaa) } }" > %t.script
86# RUN: not ld.lld -o %t6 --script %t.script %t 2>&1 | FileCheck -check-prefix=ERR %s
87# ERR: {{.*}}.script:1: alignment must be power of 2
88
89## Test we fail gracefuly when alignment value is not a power of 2 (#2).
90# RUN: echo "SECTIONS { . = 0x123; . = ALIGN(3); .aaa : { *(.aaa) } }" > %t.script
91# RUN: not ld.lld -o %t7 --script %t.script %t 2>&1 | FileCheck -check-prefix=ERR %s
92
93# RUN: echo "SECTIONS { \
94# RUN: . = 0xff8; \
95# RUN: .aaa : { \
96# RUN: *(.aaa) \
97# RUN: foo = ALIGN(., 0x100); \
98# RUN: bar = .; \
99# RUN: zed1 = ALIGN(., 0x100) + 1; \
100# RUN: zed2 = ALIGN(., 0x100) - 1; \
101# RUN: } \
102# RUN: .bbb : { *(.bbb); } \
103# RUN: .ccc : { *(.ccc); } \
104# RUN: .text : { *(.text); } \
105# RUN: }" > %t.script
106# RUN: ld.lld -o %t1 --script %t.script %t
107# RUN: llvm-objdump -t %t1 | FileCheck --check-prefix=OFFSET %s
108
109# OFFSET: 0000000000001000 .aaa 00000000 foo
110# OFFSET: 0000000000001000 .aaa 00000000 bar
111# OFFSET: 0000000000001001 .aaa 00000000 zed1
112# OFFSET: 0000000000000fff .aaa 00000000 zed2
113
69.global _start114.global _start
70_start:115_start:
71 nop116 nop
deps/lld/test/ELF/linkerscript/arm-exidx-order.s created+19
...@@ -0,0 +1,19 @@
1# REQUIRES: arm
2# RUN: llvm-mc -filetype=obj -triple=armv7a-none-linux-gnueabi %s -o %t.o
3# RUN: echo "SECTIONS { . = SIZEOF_HEADERS; \
4# RUN: .ARM.exidx : { *(.ARM.exidx*) } \
5# RUN: .foo : { _foo = 0; } }" > %t.script
6# RUN: ld.lld -T %t.script %t.o -shared -o %t.so
7# RUN: llvm-readobj -s %t.so | FileCheck %s
8
9# CHECK: Section {
10# CHECK: Index:
11# CHECK: Name: .foo
12# CHECK-NEXT: Type: SHT_NOBITS
13# CHECK-NEXT: Flags [
14# CHECK-NEXT: SHF_ALLOC
15# CHECK-NEXT: ]
16
17.fnstart
18.cantunwind
19.fnend
deps/lld/test/ELF/linkerscript/arm-exidx-sentinel-and-assignment.s created+41
...@@ -0,0 +1,41 @@
1# REQUIRES: arm
2# RUN: llvm-mc -filetype=obj -triple=armv7a-none-linux-gnueabi %s -o %t.o
3# RUN: echo "SECTIONS { \
4# RUN: .ARM.exidx 0x1000 : { *(.ARM.exidx*) foo = .; } \
5# RUN: .text 0x2000 : { *(.text*) } \
6# RUN: }" > %t.script
7## We used to crash if the last output section command for .ARM.exidx
8## was anything but an input section description.
9# RUN: ld.lld --no-merge-exidx-entries -T %t.script %t.o -shared -o %t.so
10# RUN: llvm-objdump -s -triple=armv7a-none-linux-gnueabi %t.so | FileCheck %s
11# RUN: llvm-readobj -s -t %t.so | FileCheck %s --check-prefix=SYMBOL
12
13 .syntax unified
14 .text
15 .global _start
16_start:
17 .fnstart
18 .cantunwind
19 bx lr
20 .fnend
21
22# CHECK: Contents of section .ARM.exidx:
23# 1000 + 1000 = 0x2000 = _start
24# 1008 + 0ffc = 0x2004 = _start + sizeof(_start)
25# CHECK-NEXT: 1000 00100000 01000000 fc0f0000 01000000
26
27# SYMBOL: Section {
28# SYMBOL: Name: .ARM.exidx
29# SYMBOL-NEXT: Type: SHT_ARM_EXIDX
30# SYMBOL-NEXT: Flags [
31# SYMBOL-NEXT: SHF_ALLOC
32# SYMBOL-NEXT: SHF_LINK_ORDER
33# SYMBOL-NEXT: ]
34# SYMBOL-NEXT: Address: 0x1000
35# SYMBOL-NEXT: Offset:
36# SYMBOL-NEXT: Size: 16
37
38# Symbol 'foo' is expected to point at the end of the section.
39# SYMBOL: Symbol {
40# SYMBOL: Name: foo
41# SYMBOL-NEXT: Value: 0x1010
deps/lld/test/ELF/linkerscript/at-addr.s-4
...@@ -8,10 +8,6 @@...@@ -8,10 +8,6 @@
8# RUN: ld.lld %t --script %t.script -o %t28# RUN: ld.lld %t --script %t.script -o %t2
9# RUN: llvm-readobj -program-headers %t2 | FileCheck %s9# RUN: llvm-readobj -program-headers %t2 | FileCheck %s
1010
11# CHECK: Type: PT_LOAD
12# CHECK-NEXT: Offset: 0x0
13# CHECK-NEXT: VirtualAddress: 0x0
14# CHECK-NEXT: PhysicalAddress: 0x0
15# CHECK: Type: PT_LOAD11# CHECK: Type: PT_LOAD
16# CHECK-NEXT: Offset: 0x100012# CHECK-NEXT: Offset: 0x1000
17# CHECK-NEXT: VirtualAddress: 0x100013# CHECK-NEXT: VirtualAddress: 0x1000
deps/lld/test/ELF/linkerscript/at.s-25
...@@ -13,31 +13,6 @@...@@ -13,31 +13,6 @@
1313
14# CHECK: ProgramHeaders [14# CHECK: ProgramHeaders [
15# CHECK-NEXT: ProgramHeader {15# CHECK-NEXT: ProgramHeader {
16# CHECK-NEXT: Type: PT_PHDR
17# CHECK-NEXT: Offset: 0x40
18# CHECK-NEXT: VirtualAddress: 0x40
19# CHECK-NEXT: PhysicalAddress: 0x40
20# CHECK-NEXT: FileSize:
21# CHECK-NEXT: MemSize:
22# CHECK-NEXT: Flags [
23# CHECK-NEXT: PF_R
24# CHECK-NEXT: ]
25# CHECK-NEXT: Alignment: 8
26# CHECK-NEXT: }
27# CHECK-NEXT: ProgramHeader {
28# CHECK-NEXT: Type: PT_LOAD
29# CHECK-NEXT: Offset: 0x0
30# CHECK-NEXT: VirtualAddress: 0x0
31# CHECK-NEXT: PhysicalAddress: 0x0
32# CHECK-NEXT: FileSize:
33# CHECK-NEXT: MemSize:
34# CHECK-NEXT: Flags [
35# CHECK-NEXT: PF_R
36# CHECK-NEXT: PF_X
37# CHECK-NEXT: ]
38# CHECK-NEXT: Alignment:
39# CHECK-NEXT: }
40# CHECK-NEXT: ProgramHeader {
41# CHECK-NEXT: Type: PT_LOAD16# CHECK-NEXT: Type: PT_LOAD
42# CHECK-NEXT: Offset: 0x100017# CHECK-NEXT: Offset: 0x1000
43# CHECK-NEXT: VirtualAddress: 0x100018# CHECK-NEXT: VirtualAddress: 0x1000
deps/lld/test/ELF/linkerscript/common-exclude.s created+86
...@@ -0,0 +1,86 @@
1# REQUIRES: x86
2# RUN: llvm-mc -filetype=obj -triple=x86_64-unknown-linux %s -o %tfile0.o
3# RUN: llvm-mc -filetype=obj -triple=x86_64-unknown-linux %p/Inputs/common-filespec1.s -o %tfile1.o
4# RUN: llvm-mc -filetype=obj -triple=x86_64-unknown-linux %p/Inputs/common-filespec2.s -o %tfile2.o
5# RUN: echo "SECTIONS { .common.incl : { *(EXCLUDE_FILE (*file2.o) COMMON) } .common.excl : { *(COMMON) } }" > %t.script
6# RUN: ld.lld -o %t1 --script %t.script %tfile0.o %tfile1.o %tfile2.o
7# RUN: llvm-readobj -s -t %t1 | FileCheck %s
8
9# Commons from file0 and file1 are not excluded, so they must be in .common.incl
10# Commons from file2 are excluded from the first rule and should be caught by
11# the second in .common.excl
12# CHECK: Section {
13# CHECK: Index:
14# CHECK: Name: .common.incl
15# CHECK-NEXT: Type: SHT_NOBITS
16# CHECK-NEXT: Flags [
17# CHECK-NEXT: SHF_ALLOC
18# CHECK-NEXT: SHF_WRITE
19# CHECK-NEXT: ]
20# CHECK-NEXT: Address: 0x8
21# CHECK-NEXT: Offset: 0x
22# CHECK-NEXT: Size: 16
23# CHECK-NEXT: Link: 0
24# CHECK-NEXT: Info: 0
25# CHECK-NEXT: AddressAlignment: 8
26# CHECK-NEXT: EntrySize: 0
27# CHECK-NEXT: }
28# CHECK: Section {
29# CHECK: Index:
30# CHECK: Name: .common.excl
31# CHECK-NEXT: Type: SHT_NOBITS
32# CHECK-NEXT: Flags [
33# CHECK-NEXT: SHF_ALLOC
34# CHECK-NEXT: SHF_WRITE
35# CHECK-NEXT: ]
36# CHECK-NEXT: Address: 0x20
37# CHECK-NEXT: Offset: 0x
38# CHECK-NEXT: Size: 48
39# CHECK-NEXT: Link: 0
40# CHECK-NEXT: Info: 0
41# CHECK-NEXT: AddressAlignment: 16
42# CHECK-NEXT: EntrySize: 0
43# CHECK-NEXT: }
44# CHECK: Symbol {
45# CHECK: Name: common_multiple
46# CHECK-NEXT: Value: 0x20
47# CHECK-NEXT: Size: 32
48# CHECK-NEXT: Binding: Global
49# CHECK-NEXT: Type: Object
50# CHECK-NEXT: Other: 0
51# CHECK-NEXT: Section: .common.excl
52# CHECK-NEXT: }
53# CHECK: Symbol {
54# CHECK: Name: common_uniq_0
55# CHECK-NEXT: Value: 0x8
56# CHECK-NEXT: Size: 4
57# CHECK-NEXT: Binding: Global
58# CHECK-NEXT: Type: Object
59# CHECK-NEXT: Other: 0
60# CHECK-NEXT: Section: .common.incl
61# CHECK-NEXT: }
62# CHECK: Symbol {
63# CHECK: Name: common_uniq_1
64# CHECK-NEXT: Value: 0x10
65# CHECK-NEXT: Size: 8
66# CHECK-NEXT: Binding: Global
67# CHECK-NEXT: Type: Object
68# CHECK-NEXT: Other: 0
69# CHECK-NEXT: Section: .common.incl
70# CHECK-NEXT: }
71# CHECK: Symbol {
72# CHECK: Name: common_uniq_2
73# CHECK-NEXT: Value: 0x40
74# CHECK-NEXT: Size: 16
75# CHECK-NEXT: Binding: Global
76# CHECK-NEXT: Type: Object
77# CHECK-NEXT: Other: 0
78# CHECK-NEXT: Section: .common.excl
79# CHECK-NEXT: }
80
81.globl _start
82_start:
83 jmp _start
84
85.comm common_uniq_0,4,4
86.comm common_multiple,8,8
deps/lld/test/ELF/linkerscript/common-filespec.s created+105
...@@ -0,0 +1,105 @@
1# REQUIRES: x86
2# RUN: llvm-mc -filetype=obj -triple=x86_64-unknown-linux %s -o %tfile0.o
3# RUN: llvm-mc -filetype=obj -triple=x86_64-unknown-linux %p/Inputs/common-filespec1.s -o %tfile1.o
4# RUN: llvm-mc -filetype=obj -triple=x86_64-unknown-linux %p/Inputs/common-filespec2.s -o %tfile2.o
5# RUN: echo "SECTIONS { .common_0 : { *file0.o(COMMON) } .common_1 : { *file1.o(COMMON) } .common_2 : { *file2.o(COMMON) } }" > %t.script
6# RUN: ld.lld -o %t1 --script %t.script %tfile0.o %tfile1.o %tfile2.o
7# RUN: llvm-readobj -s -t %t1 | FileCheck %s
8
9# Make sure all 3 sections are allocated and they have sizes and alignments
10# corresponding to the commons assigned to them
11# CHECK: Section {
12# CHECK: Index:
13# CHECK: Name: .common_0
14# CHECK-NEXT: Type: SHT_NOBITS
15# CHECK-NEXT: Flags [
16# CHECK-NEXT: SHF_ALLOC
17# CHECK-NEXT: SHF_WRITE
18# CHECK-NEXT: ]
19# CHECK-NEXT: Address: 0x4
20# CHECK-NEXT: Offset: 0x
21# CHECK-NEXT: Size: 4
22# CHECK-NEXT: Link: 0
23# CHECK-NEXT: Info: 0
24# CHECK-NEXT: AddressAlignment: 4
25# CHECK-NEXT: EntrySize: 0
26# CHECK-NEXT: }
27# CHECK: Section {
28# CHECK: Index:
29# CHECK: Name: .common_1
30# CHECK-NEXT: Type: SHT_NOBITS
31# CHECK-NEXT: Flags [
32# CHECK-NEXT: SHF_ALLOC
33# CHECK-NEXT: SHF_WRITE
34# CHECK-NEXT: ]
35# CHECK-NEXT: Address: 0x8
36# CHECK-NEXT: Offset: 0x
37# CHECK-NEXT: Size: 8
38# CHECK-NEXT: Link: 0
39# CHECK-NEXT: Info: 0
40# CHECK-NEXT: AddressAlignment: 8
41# CHECK-NEXT: EntrySize: 0
42# CHECK-NEXT: }
43# CHECK: Section {
44# CHECK: Index:
45# CHECK: Name: .common_2
46# CHECK-NEXT: Type: SHT_NOBITS
47# CHECK-NEXT: Flags [
48# CHECK-NEXT: SHF_ALLOC
49# CHECK-NEXT: SHF_WRITE
50# CHECK-NEXT: ]
51# CHECK-NEXT: Address: 0x10
52# CHECK-NEXT: Offset: 0x
53# CHECK-NEXT: Size: 48
54# CHECK-NEXT: Link: 0
55# CHECK-NEXT: Info: 0
56# CHECK-NEXT: AddressAlignment: 16
57# CHECK-NEXT: EntrySize: 0
58# CHECK-NEXT: }
59
60# Commons with unique name in each file must be assigned to that file's section.
61# For a common with multiple definitions, the largest one wins and it must be
62# assigned to the section from the file which provided the winning def
63# CHECK: Symbol {
64# CHECK: Name: common_multiple
65# CHECK-NEXT: Value: 0x10
66# CHECK-NEXT: Size: 32
67# CHECK-NEXT: Binding: Global
68# CHECK-NEXT: Type: Object
69# CHECK-NEXT: Other: 0
70# CHECK-NEXT: Section: .common_2
71# CHECK-NEXT: }
72# CHECK: Symbol {
73# CHECK: Name: common_uniq_0
74# CHECK-NEXT: Value: 0x4
75# CHECK-NEXT: Size: 4
76# CHECK-NEXT: Binding: Global
77# CHECK-NEXT: Type: Object
78# CHECK-NEXT: Other: 0
79# CHECK-NEXT: Section: .common_0
80# CHECK-NEXT: }
81# CHECK: Symbol {
82# CHECK: Name: common_uniq_1
83# CHECK-NEXT: Value: 0x8
84# CHECK-NEXT: Size: 8
85# CHECK-NEXT: Binding: Global
86# CHECK-NEXT: Type: Object
87# CHECK-NEXT: Other: 0
88# CHECK-NEXT: Section: .common_1
89# CHECK-NEXT: }
90# CHECK: Symbol {
91# CHECK: Name: common_uniq_2
92# CHECK-NEXT: Value: 0x30
93# CHECK-NEXT: Size: 16
94# CHECK-NEXT: Binding: Global
95# CHECK-NEXT: Type: Object
96# CHECK-NEXT: Other: 0
97# CHECK-NEXT: Section: .common_2
98# CHECK-NEXT: }
99
100.globl _start
101_start:
102 jmp _start
103
104.comm common_uniq_0,4,4
105.comm common_multiple,8,8
deps/lld/test/ELF/linkerscript/common.s+3-5
...@@ -4,8 +4,6 @@...@@ -4,8 +4,6 @@
4# RUN: ld.lld -o %t1 --script %t.script %t4# RUN: ld.lld -o %t1 --script %t.script %t
5# RUN: llvm-readobj -s -t %t1 | FileCheck %s5# RUN: llvm-readobj -s -t %t1 | FileCheck %s
66
7# q2 alignment is greater than q1, so it should have smaller offset
8# because of sorting
9# CHECK: Section {7# CHECK: Section {
10# CHECK: Index:8# CHECK: Index:
11# CHECK: Name: .common9# CHECK: Name: .common
...@@ -16,7 +14,7 @@...@@ -16,7 +14,7 @@
16# CHECK-NEXT: ]14# CHECK-NEXT: ]
17# CHECK-NEXT: Address: 0x20015# CHECK-NEXT: Address: 0x200
18# CHECK-NEXT: Offset: 0x16# CHECK-NEXT: Offset: 0x
19# CHECK-NEXT: Size: 25617# CHECK-NEXT: Size: 384
20# CHECK-NEXT: Link: 018# CHECK-NEXT: Link: 0
21# CHECK-NEXT: Info: 019# CHECK-NEXT: Info: 0
22# CHECK-NEXT: AddressAlignment: 25620# CHECK-NEXT: AddressAlignment: 256
...@@ -24,7 +22,7 @@...@@ -24,7 +22,7 @@
24# CHECK-NEXT: }22# CHECK-NEXT: }
25# CHECK: Symbol {23# CHECK: Symbol {
26# CHECK: Name: q124# CHECK: Name: q1
27# CHECK-NEXT: Value: 0x28025# CHECK-NEXT: Value: 0x200
28# CHECK-NEXT: Size: 12826# CHECK-NEXT: Size: 128
29# CHECK-NEXT: Binding: Global27# CHECK-NEXT: Binding: Global
30# CHECK-NEXT: Type: Object28# CHECK-NEXT: Type: Object
...@@ -33,7 +31,7 @@...@@ -33,7 +31,7 @@
33# CHECK-NEXT: }31# CHECK-NEXT: }
34# CHECK-NEXT: Symbol {32# CHECK-NEXT: Symbol {
35# CHECK-NEXT: Name: q233# CHECK-NEXT: Name: q2
36# CHECK-NEXT: Value: 0x20034# CHECK-NEXT: Value: 0x300
37# CHECK-NEXT: Size: 12835# CHECK-NEXT: Size: 128
38# CHECK-NEXT: Binding: Global36# CHECK-NEXT: Binding: Global
39# CHECK-NEXT: Type: Object37# CHECK-NEXT: Type: Object
deps/lld/test/ELF/linkerscript/compress-debug-sections-custom.s created+35
...@@ -0,0 +1,35 @@
1# REQUIRES: x86, zlib
2
3# RUN: echo "SECTIONS { \
4# RUN: .text : { . += 0x10; *(.text) } \
5# RUN: .debug_str : { . += 0x10; *(.debug_str) } \
6# RUN: .debug_info : { . += 0x10; *(.debug_info) } \
7# RUN: }" > %t.script
8
9# RUN: llvm-mc -filetype=obj -triple=x86_64-unknown-linux %s -o %t.o
10# RUN: llvm-mc -filetype=obj -triple=x86_64-unknown-linux %S/../Inputs/compress-debug.s -o %t2.o
11# RUN: ld.lld %t2.o %t.o -o %t1 --compress-debug-sections=zlib -T %t.script
12# RUN: llvm-dwarfdump %t1 -debug-str | FileCheck %s
13# These two checks correspond to the patched values of a_sym and a_debug_sym.
14# T = 0x54 - address of .text input section for this file (the start address of
15# .text is 0 by default, the size of the preceding .text in the other input
16# file is 0x44, and the linker script adds an additional 0x10).
17# S = 0x53 - offset of .debug_info section for this file (the size of
18# the preceding .debug_info from the other input file is 0x43, and the
19# linker script adds an additional 0x10).
20# Also note that the .debug_str offsets are also offset by 0x10, as directed by
21# the linker script.
22# CHECK: 0x00000010: "T"
23# CHECK: 0x00000014: "S"
24
25.text
26a_sym:
27nop
28
29.section .debug_str,"",@progbits
30.long a_sym
31.long a_debug_sym
32
33.section .debug_info,"",@progbits
34a_debug_sym:
35.long 0x88776655
deps/lld/test/ELF/linkerscript/compress-debug-sections.s+2-2
...@@ -10,12 +10,12 @@...@@ -10,12 +10,12 @@
1010
11# RUN: echo "SECTIONS { }" > %t.script11# RUN: echo "SECTIONS { }" > %t.script
12# RUN: ld.lld -O0 %t1.o %t2.o %t.script -o %t1 --compress-debug-sections=zlib12# RUN: ld.lld -O0 %t1.o %t2.o %t.script -o %t1 --compress-debug-sections=zlib
13# RUN: llvm-dwarfdump %t1 | FileCheck %s13# RUN: llvm-dwarfdump -a %t1 | FileCheck %s
14# RUN: llvm-readobj -s %t1 | FileCheck %s --check-prefix=ZLIBFLAGS14# RUN: llvm-readobj -s %t1 | FileCheck %s --check-prefix=ZLIBFLAGS
1515
16# RUN: echo "SECTIONS { .debug_str 0 : { *(.debug_str) } }" > %t2.script16# RUN: echo "SECTIONS { .debug_str 0 : { *(.debug_str) } }" > %t2.script
17# RUN: ld.lld -O0 %t1.o %t2.o %t2.script -o %t2 --compress-debug-sections=zlib17# RUN: ld.lld -O0 %t1.o %t2.o %t2.script -o %t2 --compress-debug-sections=zlib
18# RUN: llvm-dwarfdump %t2 | FileCheck %s18# RUN: llvm-dwarfdump -a %t2 | FileCheck %s
19# RUN: llvm-readobj -s %t2 | FileCheck %s --check-prefix=ZLIBFLAGS19# RUN: llvm-readobj -s %t2 | FileCheck %s --check-prefix=ZLIBFLAGS
2020
21# CHECK: .debug_str contents:21# CHECK: .debug_str contents:
deps/lld/test/ELF/linkerscript/copy-rel-symbol-value-err.s created+12
...@@ -0,0 +1,12 @@
1# REQUIRES: x86
2# RUN: llvm-mc -filetype=obj -triple=x86_64-pc-linux %s -o %t.o
3# RUN: llvm-mc -filetype=obj -triple=x86_64-pc-linux %p/Inputs/copy-rel-symbol-value.s -o %t2.o
4# RUN: ld.lld %t2.o -o %t2.so -shared
5# RUN: echo "SECTIONS { . = . + SIZEOF_HEADERS; foo = bar; }" > %t.script
6# RUN: not ld.lld %t.o %t2.so --script %t.script -o %t 2>&1 | FileCheck %s
7
8# CHECK: symbol not found: bar
9
10.global _start
11_start:
12.quad bar@got
deps/lld/test/ELF/linkerscript/copy-rel-symbol-value.s created+27
...@@ -0,0 +1,27 @@
1# REQUIRES: x86
2# RUN: llvm-mc -filetype=obj -triple=x86_64-pc-linux %s -o %t.o
3# RUN: llvm-mc -filetype=obj -triple=x86_64-pc-linux %p/Inputs/copy-rel-symbol-value.s -o %t2.o
4# RUN: ld.lld %t2.o -o %t2.so -shared
5# RUN: echo "SECTIONS { . = . + SIZEOF_HEADERS; foo = bar; }" > %t.script
6# RUN: ld.lld %t.o %t2.so --script %t.script -o %t
7# RUN: llvm-readobj -t %t | FileCheck %s
8
9# CHECK: Name: bar
10# CHECK-NEXT: Value: 0x[[VAL:.*]]
11# CHECK-NEXT: Size: 8
12# CHECK-NEXT: Binding: Global
13# CHECK-NEXT: Type: Object
14# CHECK-NEXT: Other: 0
15# CHECK-NEXT: Section: .bss.rel.ro
16
17# CHECK: Name: foo
18# CHECK-NEXT: Value: 0x[[VAL]]
19# CHECK-NEXT: Size:
20# CHECK-NEXT: Binding: Global
21# CHECK-NEXT: Type:
22# CHECK-NEXT: Other: 0
23# CHECK-NEXT: Section: .bss.rel.ro
24
25.global _start
26_start:
27.quad bar
deps/lld/test/ELF/linkerscript/data-commands.s+36
...@@ -44,6 +44,42 @@...@@ -44,6 +44,42 @@
44# BE-NEXT: ff12ff11 22ff1122 3346ff11 2233445544# BE-NEXT: ff12ff11 22ff1122 3346ff11 22334455
45# BE-NEXT: 66778845# BE-NEXT: 667788
4646
47# RUN: echo "MEMORY { \
48# RUN: rom (rwx) : ORIGIN = 0x00, LENGTH = 2K \
49# RUN: } \
50# RUN: SECTIONS { \
51# RUN: .foo : { \
52# RUN: *(.foo.1) \
53# RUN: BYTE(0x11) \
54# RUN: *(.foo.2) \
55# RUN: SHORT(0x1122) \
56# RUN: *(.foo.3) \
57# RUN: LONG(0x11223344) \
58# RUN: *(.foo.4) \
59# RUN: QUAD(0x1122334455667788) \
60# RUN: } > rom \
61# RUN: .bar : { \
62# RUN: *(.bar.1) \
63# RUN: BYTE(a + 1) \
64# RUN: *(.bar.2) \
65# RUN: SHORT(b) \
66# RUN: *(.bar.3) \
67# RUN: LONG(c + 2) \
68# RUN: *(.bar.4) \
69# RUN: QUAD(d) \
70# RUN: } > rom \
71# RUN: }" > %t-memory.script
72# RUN: ld.lld -o %t-memory %t.o --script %t-memory.script
73# RUN: llvm-objdump -s %t-memory | FileCheck %s --check-prefix=MEM
74
75# MEM: Contents of section .foo:
76# MEM-NEXT: 0000 ff11ff22 11ff4433 2211ff88 77665544
77# MEM-NEXT: 0010 332211
78
79# MEM: Contents of section .bar:
80# MEM-NEXT: 0013 ff12ff22 11ff4633 2211ff88 77665544
81# MEM-NEXT: 0023 332211
82
47.global a83.global a
48a = 0x1184a = 0x11
4985
deps/lld/test/ELF/linkerscript/data-segment-relro.s+2-2
...@@ -19,9 +19,9 @@...@@ -19,9 +19,9 @@
1919
20## With relro or without DATA_SEGMENT_RELRO_END just aligns to20## With relro or without DATA_SEGMENT_RELRO_END just aligns to
21## page boundary.21## page boundary.
22# RUN: ld.lld -z norelro %t1.o %t2.so --script %t.script -o %t22# RUN: ld.lld --hash-style=sysv -z norelro %t1.o %t2.so --script %t.script -o %t
23# RUN: llvm-readobj -s %t | FileCheck %s23# RUN: llvm-readobj -s %t | FileCheck %s
24# RUN: ld.lld -z relro %t1.o %t2.so --script %t.script -o %t224# RUN: ld.lld --hash-style=sysv -z relro %t1.o %t2.so --script %t.script -o %t2
25# RUN: llvm-readobj -s %t2 | FileCheck %s25# RUN: llvm-readobj -s %t2 | FileCheck %s
2626
27# CHECK: Section {27# CHECK: Section {
deps/lld/test/ELF/linkerscript/diagnostic.s+7-7
...@@ -50,9 +50,9 @@...@@ -50,9 +50,9 @@
50# RUN: echo ".temp : { *(.temp) } }" >> %t.script50# RUN: echo ".temp : { *(.temp) } }" >> %t.script
51# RUN: not ld.lld -shared %t -o %t1 --script %t.script 2>&1 | \51# RUN: not ld.lld -shared %t -o %t1 --script %t.script 2>&1 | \
52# RUN: FileCheck -check-prefix=ERR6 -strict-whitespace %s52# RUN: FileCheck -check-prefix=ERR6 -strict-whitespace %s
53# ERR6: error: {{.*}}.script:1:53# ERR6: error: {{.*}}.script:1: unknown directive: UNKNOWN_TAG
54# ERR6-NEXT: error: {{.*}}.script:1: UNKNOWN_TAG {54# ERR6-NEXT: >>> UNKNOWN_TAG {
55# ERR6-NEXT: error: {{.*}}.script:1: ^55# ERR6-NEXT: >>> ^
5656
57## One more check that text of lines and pointer to 'bad' token are working ok.57## One more check that text of lines and pointer to 'bad' token are working ok.
58# RUN: echo "SECTIONS {" > %t.script58# RUN: echo "SECTIONS {" > %t.script
...@@ -62,8 +62,8 @@...@@ -62,8 +62,8 @@
62# RUN: not ld.lld -shared %t -o %t1 --script %t.script 2>&1 | \62# RUN: not ld.lld -shared %t -o %t1 --script %t.script 2>&1 | \
63# RUN: FileCheck -check-prefix=ERR7 -strict-whitespace %s63# RUN: FileCheck -check-prefix=ERR7 -strict-whitespace %s
64# ERR7: error: {{.*}}.script:4: malformed number: .temp64# ERR7: error: {{.*}}.script:4: malformed number: .temp
65# ERR7-NEXT: error: {{.*}}.script:4: boom .temp : { *(.temp) } }65# ERR7-NEXT: >>> boom .temp : { *(.temp) } }
66# ERR7-NEXT: error: {{.*}}.script:4: ^66# ERR7-NEXT: >>> ^
6767
68## Check tokenize() error68## Check tokenize() error
69# RUN: echo "SECTIONS {}" > %t.script69# RUN: echo "SECTIONS {}" > %t.script
...@@ -89,8 +89,8 @@...@@ -89,8 +89,8 @@
89# RUN: not ld.lld -shared %t -o %t1 --script %t.script 2>&1 | \89# RUN: not ld.lld -shared %t -o %t1 --script %t.script 2>&1 | \
90# RUN: FileCheck -check-prefix=ERR10 -strict-whitespace %s90# RUN: FileCheck -check-prefix=ERR10 -strict-whitespace %s
91# ERR10: error: {{.*}}.script.inc:4: malformed number: .temp91# ERR10: error: {{.*}}.script.inc:4: malformed number: .temp
92# ERR10-NEXT: error: {{.*}}.script.inc:4: boom .temp : { *(.temp) } }92# ERR10-NEXT: >>> boom .temp : { *(.temp) } }
93# ERR10-NEXT: error: {{.*}}.script.inc:4: ^93# ERR10-NEXT: >>> ^
9494
95## Check error reporting in script with INCLUDE directive.95## Check error reporting in script with INCLUDE directive.
96# RUN: echo "SECTIONS {" > %t.script.inc96# RUN: echo "SECTIONS {" > %t.script.inc
deps/lld/test/ELF/linkerscript/discard-section-err.s+2
...@@ -21,3 +21,5 @@...@@ -21,3 +21,5 @@
21# RUN: not ld.lld -pie -o %t --script %t.script %t.o 2>&1 | \21# RUN: not ld.lld -pie -o %t --script %t.script %t.o 2>&1 | \
22# RUN: FileCheck -check-prefix=DYNSTR %s22# RUN: FileCheck -check-prefix=DYNSTR %s
23# DYNSTR: discarding .dynstr section is not allowed23# DYNSTR: discarding .dynstr section is not allowed
24
25.comm foo,4,4
deps/lld/test/ELF/linkerscript/early-assign-symbol.s+19-5
...@@ -1,14 +1,28 @@...@@ -1,14 +1,28 @@
1# REQUIRES: x861# REQUIRES: x86
2# RUN: llvm-mc -filetype=obj -triple=x86_64-unknown-linux %s -o %t.o2# RUN: llvm-mc -filetype=obj -triple=x86_64-unknown-linux %s -o %t.o
33
4# RUN: echo "SECTIONS { aaa = 1 + ABSOLUTE(foo - 1); .text : { *(.text*) } }" > %t1.script4# RUN: echo "SECTIONS { aaa = foo | 1; .text : { *(.text*) } }" > %t3.script
5# RUN: not ld.lld -o %t --script %t1.script %t.o 2>&1 | FileCheck %s5# RUN: not ld.lld -o %t --script %t3.script %t.o 2>&1 | FileCheck %s
6
7# RUN: echo "SECTIONS { aaa = ABSOLUTE(foo - 1) + 1; .text : { *(.text*) } }" > %t2.script
8# RUN: not ld.lld -o %t --script %t2.script %t.o 2>&1 | FileCheck %s
96
10# CHECK: error: {{.*}}.script:1: unable to evaluate expression: input section .text has no output section assigned7# CHECK: error: {{.*}}.script:1: unable to evaluate expression: input section .text has no output section assigned
118
9# Simple cases that we can handle.
10
11# RUN: echo "SECTIONS { aaa = ABSOLUTE(foo - 1) + 1; .text : { *(.text*) } }" > %t.script
12# RUN: ld.lld -o %t --script %t.script %t.o
13# RUN: llvm-objdump -t %t | FileCheck --check-prefix=VAL %s
14
15# RUN: echo "SECTIONS { aaa = 1 + ABSOLUTE(foo - 1); .text : { *(.text*) } }" > %t.script
16# RUN: ld.lld -o %t --script %t.script %t.o
17# RUN: llvm-objdump -t %t | FileCheck --check-prefix=VAL %s
18
19# RUN: echo "SECTIONS { aaa = ABSOLUTE(foo); .text : { *(.text*) } }" > %t4.script
20# RUN: ld.lld -o %t --script %t4.script %t.o
21# RUN: llvm-objdump -t %t | FileCheck --check-prefix=VAL %s
22
23# VAL: 0000000000000000 .text 00000000 foo
24# VAL: 0000000000000000 *ABS* 00000000 aaa
25
12.section .text26.section .text
13.globl foo27.globl foo
14foo:28foo:
deps/lld/test/ELF/linkerscript/eh-frame-reloc-out-of-range.s+1-1
...@@ -12,7 +12,7 @@...@@ -12,7 +12,7 @@
12# RUN: }" > %t.script12# RUN: }" > %t.script
13# RUN: not ld.lld %t.o -T %t.script -o %t 2>&1 | FileCheck %s13# RUN: not ld.lld %t.o -T %t.script -o %t 2>&1 | FileCheck %s
1414
15# CHECK: error: {{.*}}:(.eh_frame+0x20): relocation R_X86_64_PC32 out of range15# CHECK: error: {{.*}}:(.eh_frame+0x20): relocation R_X86_64_PC32 out of range: 64424443872 is not in [-2147483648, 2147483647]
1616
17 .text17 .text
18 .globl _start18 .globl _start
deps/lld/test/ELF/linkerscript/emit-reloc-section-names.s created+22
...@@ -0,0 +1,22 @@
1# REQUIRES: x86
2# RUN: llvm-mc -filetype=obj -triple=x86_64-pc-linux %s -o %t.o
3# RUN: echo "SECTIONS { .text.zed : { *(.text.foo) } \
4# RUN: .text.qux : { *(.text.bar) } }" > %t.script
5# RUN: ld.lld -T %t.script --emit-relocs %t.o -o %t
6# RUN: llvm-objdump -section-headers %t | FileCheck %s
7
8## Check we name relocation sections in according to
9## their target sections names.
10
11# CHECK: .text.zed
12# CHECK: .text.qux
13# CHECK: .rela.text.zed
14# CHECK: .rela.text.qux
15
16.section .text.foo,"ax"
17foo:
18 mov $bar, %rax
19
20.section .text.bar,"ax"
21bar:
22 mov $foo, %rax
deps/lld/test/ELF/linkerscript/emit-reloc.s+1-1
...@@ -1,7 +1,7 @@...@@ -1,7 +1,7 @@
1# REQUIRES: x861# REQUIRES: x86
2# RUN: llvm-mc -filetype=obj -triple=x86_64-pc-linux %s -o %t.o2# RUN: llvm-mc -filetype=obj -triple=x86_64-pc-linux %s -o %t.o
3# RUN: echo "SECTIONS { .rela.dyn : { *(.rela.data) } }" > %t.script3# RUN: echo "SECTIONS { .rela.dyn : { *(.rela.data) } }" > %t.script
4# RUN: ld.lld -T %t.script --emit-relocs %t.o -o %t.so -shared4# RUN: ld.lld --hash-style=sysv -T %t.script --emit-relocs %t.o -o %t.so -shared
5# RUN: llvm-readobj -r %t.so | FileCheck %s5# RUN: llvm-readobj -r %t.so | FileCheck %s
66
7.data7.data
deps/lld/test/ELF/linkerscript/emit-relocs-multiple.s+1-1
...@@ -5,7 +5,7 @@...@@ -5,7 +5,7 @@
5# RUN: llvm-readobj -r %t1 | FileCheck %s5# RUN: llvm-readobj -r %t1 | FileCheck %s
66
7# CHECK: Relocations [7# CHECK: Relocations [
8# CHECK-NEXT: Section {{.*}} .rela.foo {8# CHECK-NEXT: Section {{.*}} .rela.zed {
9# CHECK-NEXT: 0x1 R_X86_64_32 .zed 0x09# CHECK-NEXT: 0x1 R_X86_64_32 .zed 0x0
10# CHECK-NEXT: 0x6 R_X86_64_32 .zed 0x510# CHECK-NEXT: 0x6 R_X86_64_32 .zed 0x5
11# CHECK-NEXT: }11# CHECK-NEXT: }
deps/lld/test/ELF/linkerscript/extend-pt-load.s+6-7
...@@ -15,7 +15,7 @@...@@ -15,7 +15,7 @@
15# RUN: . = ALIGN(0x1000); \15# RUN: . = ALIGN(0x1000); \
16# RUN: .data.rel.ro : { *(.data.rel.ro) } \16# RUN: .data.rel.ro : { *(.data.rel.ro) } \
17# RUN: }" > %t.script17# RUN: }" > %t.script
18# RUN: ld.lld -o %t1 --script %t.script %t.o -shared18# RUN: ld.lld --hash-style=sysv -o %t1 --script %t.script %t.o -shared
19# RUN: llvm-readobj --elf-output-style=GNU -l -s %t1 | FileCheck --check-prefix=CHECK1 %s19# RUN: llvm-readobj --elf-output-style=GNU -l -s %t1 | FileCheck --check-prefix=CHECK1 %s
2020
21# CHECK1: .text PROGBITS 00000000000001bc 0001bc 000001 00 AX21# CHECK1: .text PROGBITS 00000000000001bc 0001bc 000001 00 AX
...@@ -33,18 +33,17 @@...@@ -33,18 +33,17 @@
33# RUN: .hash : { } \33# RUN: .hash : { } \
34# RUN: .dynstr : { } \34# RUN: .dynstr : { } \
35# RUN: .text : { *(.text) } \35# RUN: .text : { *(.text) } \
36# RUN: . = ALIGN(0x1000); \36# RUN: bar : { . = ALIGN(0x1000); } \
37# RUN: bar : { HIDDEN(bar_sym = .); } \
38# RUN: .data.rel.ro : { *(.data.rel.ro) } \37# RUN: .data.rel.ro : { *(.data.rel.ro) } \
39# RUN: }" > %t.script38# RUN: }" > %t.script
40# RUN: ld.lld -o %t2 --script %t.script %t.o -shared39# RUN: ld.lld --hash-style=sysv -o %t2 --script %t.script %t.o -shared
41# RUN: llvm-readobj --elf-output-style=GNU -l -s %t2 | FileCheck --check-prefix=CHECK2 %s40# RUN: llvm-readobj --elf-output-style=GNU -l -s %t2 | FileCheck --check-prefix=CHECK2 %s
4241
43# CHECK2: .text PROGBITS 00000000000001bc 0001bc 000001 00 AX42# CHECK2: .text PROGBITS 00000000000001bc 0001bc 000001 00 AX
44# CHECK2-NEXT: bar PROGBITS 0000000000001000 001000 000000 00 AX43# CHECK2-NEXT: bar NOBITS 00000000000001bd 0001bd 000e43 00 AX
45# CHECK2-NEXT: .data.rel.ro PROGBITS 0000000000001000 001000 000001 00 WA44# CHECK2-NEXT: .data.rel.ro PROGBITS 0000000000001000 001000 000001 00 WA
4645
47# CHECK2: LOAD 0x000000 0x0000000000000000 0x0000000000000000 0x001000 0x001000 R E46# CHECK2: LOAD 0x000000 0x0000000000000000 0x0000000000000000 0x0001bd 0x001000 R E
48# CHECK2-NEXT: LOAD 0x001000 0x0000000000001000 0x0000000000001000 0x000068 0x000068 RW47# CHECK2-NEXT: LOAD 0x001000 0x0000000000001000 0x0000000000001000 0x000068 0x000068 RW
4948
50# If the current behavior becomes a problem we should consider just moving the commands out49# If the current behavior becomes a problem we should consider just moving the commands out
...@@ -60,7 +59,7 @@...@@ -60,7 +59,7 @@
60# RUN: HIDDEN(bar_sym = .); \59# RUN: HIDDEN(bar_sym = .); \
61# RUN: .data.rel.ro : { *(.data.rel.ro) } \60# RUN: .data.rel.ro : { *(.data.rel.ro) } \
62# RUN: }" > %t.script61# RUN: }" > %t.script
63# RUN: ld.lld -o %t3 --script %t.script %t.o -shared62# RUN: ld.lld --hash-style=sysv -o %t3 --script %t.script %t.o -shared
64# RUN: llvm-readobj --elf-output-style=GNU -l -s %t3 | FileCheck --check-prefix=CHECK1 %s63# RUN: llvm-readobj --elf-output-style=GNU -l -s %t3 | FileCheck --check-prefix=CHECK1 %s
6564
66nop65nop
deps/lld/test/ELF/linkerscript/filename-spec.s+43-4
...@@ -33,24 +33,63 @@...@@ -33,24 +33,63 @@
33# RUN: ld.lld -o %t4 --script %t4.script %tfirst.o %tsecond.o33# RUN: ld.lld -o %t4 --script %t4.script %tfirst.o %tsecond.o
34# RUN: llvm-objdump -s %t4 | FileCheck --check-prefix=SECONDFIRST %s34# RUN: llvm-objdump -s %t4 | FileCheck --check-prefix=SECONDFIRST %s
3535
36# RUN: llvm-mc -filetype=obj -triple=x86_64-unknown-linux %s -o %T/filename-spec1.o36# RUN: llvm-mc -filetype=obj -triple=x86_64-unknown-linux %s -o filename-spec1.o
37# RUN: llvm-mc -filetype=obj -triple=x86_64-unknown-linux \37# RUN: llvm-mc -filetype=obj -triple=x86_64-unknown-linux \
38# RUN: %p/Inputs/filename-spec.s -o %T/filename-spec2.o38# RUN: %p/Inputs/filename-spec.s -o filename-spec2.o
3939
40# RUN: echo "SECTIONS { .foo : { \40# RUN: echo "SECTIONS { .foo : { \
41# RUN: filename-spec2.o(.foo) \41# RUN: filename-spec2.o(.foo) \
42# RUN: filename-spec1.o(.foo) } }" > %t5.script42# RUN: filename-spec1.o(.foo) } }" > %t5.script
43# RUN: ld.lld -o %t5 --script %t5.script \43# RUN: ld.lld -o %t5 --script %t5.script \
44# RUN: %T/filename-spec1.o %T/filename-spec2.o44# RUN: filename-spec1.o filename-spec2.o
45# RUN: llvm-objdump -s %t5 | FileCheck --check-prefix=SECONDFIRST %s45# RUN: llvm-objdump -s %t5 | FileCheck --check-prefix=SECONDFIRST %s
4646
47# RUN: echo "SECTIONS { .foo : { \47# RUN: echo "SECTIONS { .foo : { \
48# RUN: filename-spec1.o(.foo) \48# RUN: filename-spec1.o(.foo) \
49# RUN: filename-spec2.o(.foo) } }" > %t6.script49# RUN: filename-spec2.o(.foo) } }" > %t6.script
50# RUN: ld.lld -o %t6 --script %t6.script \50# RUN: ld.lld -o %t6 --script %t6.script \
51# RUN: %T/filename-spec1.o %T/filename-spec2.o51# RUN: filename-spec1.o filename-spec2.o
52# RUN: llvm-objdump -s %t6 | FileCheck --check-prefix=FIRSTSECOND %s52# RUN: llvm-objdump -s %t6 | FileCheck --check-prefix=FIRSTSECOND %s
5353
54# RUN: mkdir -p %t.testdir1 %t.testdir2
55# RUN: llvm-mc -filetype=obj -triple=x86_64-unknown-linux %s -o %t.testdir1/filename-spec1.o
56# RUN: llvm-mc -filetype=obj -triple=x86_64-unknown-linux \
57# RUN: %p/Inputs/filename-spec.s -o %t.testdir2/filename-spec2.o
58# RUN: llvm-ar rsc %t.testdir1/lib1.a %t.testdir1/filename-spec1.o
59# RUN: llvm-ar rsc %t.testdir2/lib2.a %t.testdir2/filename-spec2.o
60
61# Verify matching of archive library names.
62# RUN: echo "SECTIONS { .foo : { \
63# RUN: *lib2*(.foo) \
64# RUN: *lib1*(.foo) } }" > %t7.script
65# RUN: ld.lld -o %t7 --script %t7.script --whole-archive \
66# RUN: %t.testdir1/lib1.a %t.testdir2/lib2.a
67# RUN: llvm-objdump -s %t7 | FileCheck --check-prefix=SECONDFIRST %s
68
69# Verify matching directories.
70# RUN: echo "SECTIONS { .foo : { \
71# RUN: *testdir2*(.foo) \
72# RUN: *testdir1*(.foo) } }" > %t8.script
73# RUN: ld.lld -o %t8 --script %t8.script --whole-archive \
74# RUN: %t.testdir1/lib1.a %t.testdir2/lib2.a
75# RUN: llvm-objdump -s %t8 | FileCheck --check-prefix=SECONDFIRST %s
76
77# Verify matching of archive library names in KEEP.
78# RUN: echo "SECTIONS { .foo : { \
79# RUN: KEEP(*lib2*(.foo)) \
80# RUN: KEEP(*lib1*(.foo)) } }" > %t9.script
81# RUN: ld.lld -o %t9 --script %t9.script --whole-archive \
82# RUN: %t.testdir1/lib1.a %t.testdir2/lib2.a
83# RUN: llvm-objdump -s %t9 | FileCheck --check-prefix=SECONDFIRST %s
84
85# Verify matching directories in KEEP.
86# RUN: echo "SECTIONS { .foo : { \
87# RUN: KEEP(*testdir2*(.foo)) \
88# RUN: KEEP(*testdir1*(.foo)) } }" > %t10.script
89# RUN: ld.lld -o %t10 --script %t10.script --whole-archive \
90# RUN: %t.testdir1/lib1.a %t.testdir2/lib2.a
91# RUN: llvm-objdump -s %t10 | FileCheck --check-prefix=SECONDFIRST %s
92
54.global _start93.global _start
55_start:94_start:
56 nop95 nop
deps/lld/test/ELF/linkerscript/header-addr.s+11-11
...@@ -2,20 +2,20 @@...@@ -2,20 +2,20 @@
2# RUN: llvm-mc -filetype=obj -triple=x86_64-pc-linux %s -o %t.o2# RUN: llvm-mc -filetype=obj -triple=x86_64-pc-linux %s -o %t.o
3# RUN: echo "PHDRS {all PT_LOAD PHDRS;} \3# RUN: echo "PHDRS {all PT_LOAD PHDRS;} \
4# RUN: SECTIONS { \4# RUN: SECTIONS { \
5# RUN: . = 0x2000; \5# RUN: . = 0x2000 + SIZEOF_HEADERS; \
6# RUN: .text : {*(.text)} :all \6# RUN: .text : {*(.text)} :all \
7# RUN: }" > %t.script7# RUN: }" > %t.script
8# RUN: ld.lld -o %t.so --script %t.script %t.o -shared8# RUN: ld.lld --hash-style=sysv -o %t.so --script %t.script %t.o -shared
9# RUN: llvm-readobj -program-headers %t.so | FileCheck %s9# RUN: llvm-readobj -program-headers %t.so | FileCheck %s
1010
11# CHECK: ProgramHeaders [11# CHECK: ProgramHeaders [
12# CHECK-NEXT: ProgramHeader {12# CHECK-NEXT: ProgramHeader {
13# CHECK-NEXT: Type: PT_LOAD13# CHECK-NEXT: Type: PT_LOAD
14# CHECK-NEXT: Offset: 0x4014# CHECK-NEXT: Offset: 0x40
15# CHECK-NEXT: VirtualAddress: 0x104015# CHECK-NEXT: VirtualAddress: 0x2040
16# CHECK-NEXT: PhysicalAddress: 0x104016# CHECK-NEXT: PhysicalAddress: 0x2040
17# CHECK-NEXT: FileSize: 417617# CHECK-NEXT: FileSize: 200
18# CHECK-NEXT: MemSize: 417618# CHECK-NEXT: MemSize: 200
19# CHECK-NEXT: Flags [19# CHECK-NEXT: Flags [
20# CHECK-NEXT: PF_R (0x4)20# CHECK-NEXT: PF_R (0x4)
21# CHECK-NEXT: PF_W (0x2)21# CHECK-NEXT: PF_W (0x2)
...@@ -25,7 +25,7 @@...@@ -25,7 +25,7 @@
25# CHECK-NEXT: }25# CHECK-NEXT: }
26# CHECK-NEXT: ]26# CHECK-NEXT: ]
2727
28# RUN: ld.lld -o %t2.so --script %t.script %t.o -shared -z max-page-size=0x200028# RUN: ld.lld --hash-style=sysv -o %t2.so --script %t.script %t.o -shared -z max-page-size=0x2000
29# RUN: llvm-readobj -program-headers %t2.so \29# RUN: llvm-readobj -program-headers %t2.so \
30# RUN: | FileCheck --check-prefix=MAXPAGE %s30# RUN: | FileCheck --check-prefix=MAXPAGE %s
3131
...@@ -33,10 +33,10 @@...@@ -33,10 +33,10 @@
33# MAXPAGE-NEXT: ProgramHeader {33# MAXPAGE-NEXT: ProgramHeader {
34# MAXPAGE-NEXT: Type: PT_LOAD34# MAXPAGE-NEXT: Type: PT_LOAD
35# MAXPAGE-NEXT: Offset: 0x4035# MAXPAGE-NEXT: Offset: 0x40
36# MAXPAGE-NEXT: VirtualAddress: 0x4036# MAXPAGE-NEXT: VirtualAddress: 0x2040
37# MAXPAGE-NEXT: PhysicalAddress: 0x4037# MAXPAGE-NEXT: PhysicalAddress: 0x2040
38# MAXPAGE-NEXT: FileSize: 827238# MAXPAGE-NEXT: FileSize: 200
39# MAXPAGE-NEXT: MemSize: 827239# MAXPAGE-NEXT: MemSize: 200
40# MAXPAGE-NEXT: Flags [40# MAXPAGE-NEXT: Flags [
41# MAXPAGE-NEXT: PF_R41# MAXPAGE-NEXT: PF_R
42# MAXPAGE-NEXT: PF_W42# MAXPAGE-NEXT: PF_W
deps/lld/test/ELF/linkerscript/header-phdr.s created+13
...@@ -0,0 +1,13 @@
1# REQUIRES: x86
2# RUN: llvm-mc -filetype=obj -triple=x86_64-pc-linux %s -o %t.o
3# RUN: echo "PHDRS { foobar PT_LOAD FILEHDR PHDRS; } \
4# RUN: SECTIONS { . = 0x1000; .abc : { *(.zed) } : foobar }" > %t.script
5# RUN: ld.lld --script %t.script %t.o -o %t
6# RUN: llvm-readelf -l -S -W %t | FileCheck %s
7
8.section .zed, "a"
9.zero 4
10
11
12# CHECK: [ 1] .abc PROGBITS 0000000000001000 001000 000004 00 A 0 0 1
13# CHECK: LOAD 0x000000 0x0000000000000000 0x0000000000000000 0x001004 0x001004 R E 0x1000
deps/lld/test/ELF/linkerscript/image-base.s created+18
...@@ -0,0 +1,18 @@
1# REQUIRES: x86
2
3# RUN: llvm-mc -filetype=obj -triple=x86_64-pc-linux %s -o %t.o
4# RUN: echo "SECTIONS { mysym = .; }" > %t.script
5
6# RUN: ld.lld %t.o -o %t-default.elf -T %t.script
7# RUN: llvm-readobj --symbols %t-default.elf | FileCheck %s --check-prefix=DEFAULT
8# DEFAULT: Name: mysym
9# DEFAULT-NEXT: Value: 0x0
10
11# RUN: ld.lld %t.o -o %t-switch.elf -T %t.script --image-base=0x100000
12# RUN: llvm-readobj --symbols %t-switch.elf | FileCheck %s --check-prefix=SWITCH
13# SWITCH: Name: mysym
14# SWITCH-NEXT: Value: 0x100000
15
16.global _start
17_start:
18 nop
deps/lld/test/ELF/linkerscript/implicit-program-header.s+1-1
...@@ -1,6 +1,6 @@...@@ -1,6 +1,6 @@
1# REQUIRES: x861# REQUIRES: x86
2# RUN: llvm-mc -filetype=obj -triple=x86_64-pc-linux %s -o %t.o2# RUN: llvm-mc -filetype=obj -triple=x86_64-pc-linux %s -o %t.o
3# RUN: ld.lld -o %t1 --script %S/Inputs/implicit-program-header.script \3# RUN: ld.lld --hash-style=sysv -o %t1 --script %S/Inputs/implicit-program-header.script \
4# RUN: %t.o -shared4# RUN: %t.o -shared
5# RUN: llvm-readobj -elf-output-style=GNU -l %t1 | FileCheck %s5# RUN: llvm-readobj -elf-output-style=GNU -l %t1 | FileCheck %s
66
deps/lld/test/ELF/linkerscript/include-cycle.s created+15
...@@ -0,0 +1,15 @@
1# REQUIRES: x86
2# RUN: llvm-mc -filetype=obj -triple=x86_64-unknown-linux %s -o %t.o
3
4# RUN: echo "INCLUDE \"%t1.script\"" > %t1.script
5# RUN: not ld.lld %t.o %t1.script 2>&1 | FileCheck %s
6
7# RUN: echo "INCLUDE \"%t2.script\"" > %t1.script
8# RUN: echo "INCLUDE \"%t1.script\"" > %t2.script
9# RUN: not ld.lld %t.o %t1.script 2>&1 | FileCheck %s
10
11# CHECK: there is a cycle in linker script INCLUDEs
12
13.globl _start
14_start:
15 ret
deps/lld/test/ELF/linkerscript/linker-script-in-search-path.s created+19
...@@ -0,0 +1,19 @@
1# REQUIRES: x86
2# Check that we fall back to search paths if a linker script was not found
3# This behaviour matches ld.bfd and various projects appear to rely on this
4
5# RUN: llvm-mc -filetype=obj -triple=x86_64-unknown-linux %s -o %t.o
6# RUN: mkdir -p %T/searchpath
7# RUN: echo "OUTPUT(\"%t.out\")" > %T/searchpath/foo.script
8# RUN: ld.lld -T%T/searchpath/foo.script %t.o
9# RUN: llvm-readobj %t.out | FileCheck %s
10# CHECK: Format: ELF64-x86-64
11
12# If the linker script specified with -T is missing we should emit an error
13# RUN: not ld.lld -Tfoo.script %t.o 2>&1 | FileCheck %s -check-prefix ERROR
14# ERROR: error: cannot find linker script foo.script
15
16# But if it exists in the search path we should fall back to that instead:
17# RUN: rm %t.out
18# RUN: ld.lld -L %T/searchpath -Tfoo.script %t.o
19# RUN: llvm-readobj %t.out | FileCheck %s
deps/lld/test/ELF/linkerscript/linkerscript.s+2-2
...@@ -37,8 +37,8 @@...@@ -37,8 +37,8 @@
37# RUN: echo "OUTPUT(\"%t.out\")" > %T/foo.script37# RUN: echo "OUTPUT(\"%t.out\")" > %T/foo.script
38# RUN: not ld.lld %t.script > %t.log 2>&138# RUN: not ld.lld %t.script > %t.log 2>&1
39# RUN: FileCheck -check-prefix=INCLUDE_ERR %s < %t.log39# RUN: FileCheck -check-prefix=INCLUDE_ERR %s < %t.log
40# INCLUDE_ERR: error: {{.+}}.script:1: cannot open foo.script40# INCLUDE_ERR: error: {{.+}}.script:1: cannot find linker script foo.script
41# INCLUDE_ERR-NEXT: error: {{.+}}.script:1: INCLUDE "foo.script"41# INCLUDE_ERR-NEXT: INCLUDE "foo.script"
42# RUN: ld.lld -L %T %t.script %t42# RUN: ld.lld -L %T %t.script %t
4343
44# RUN: echo "FOO(BAR)" > %t.script44# RUN: echo "FOO(BAR)" > %t.script
deps/lld/test/ELF/linkerscript/memory-at.s created+46
...@@ -0,0 +1,46 @@
1# REQUIRES: x86
2# RUN: llvm-mc -filetype=obj -triple=x86_64-unknown-linux %s -o %t
3# RUN: echo "MEMORY { \
4# RUN: FLASH (rx) : ORIGIN = 0x1000, LENGTH = 0x100 \
5# RUN: RAM (rwx) : ORIGIN = 0x2000, LENGTH = 0x100 } \
6# RUN: SECTIONS { \
7# RUN: .text : { *(.text*) } > FLASH \
8# RUN: __etext = .; \
9# RUN: .data : AT (__etext) { *(.data*) } > RAM \
10# RUN: }" > %t.script
11# RUN: ld.lld %t --script %t.script -o %t2
12# RUN: llvm-readobj -program-headers %t2 | FileCheck %s
13
14# CHECK: ProgramHeaders [
15# CHECK-NEXT: ProgramHeader {
16# CHECK-NEXT: Type: PT_LOAD
17# CHECK-NEXT: Offset: 0x1000
18# CHECK-NEXT: VirtualAddress: 0x1000
19# CHECK-NEXT: PhysicalAddress: 0x1000
20# CHECK-NEXT: FileSize: 8
21# CHECK-NEXT: MemSize: 8
22# CHECK-NEXT: Flags [
23# CHECK-NEXT: PF_R
24# CHECK-NEXT: PF_X
25# CHECK-NEXT: ]
26# CHECK-NEXT: Alignment:
27# CHECK-NEXT: }
28# CHECK-NEXT: ProgramHeader {
29# CHECK-NEXT: Type: PT_LOAD
30# CHECK-NEXT: Offset: 0x2000
31# CHECK-NEXT: VirtualAddress: 0x2000
32# CHECK-NEXT: PhysicalAddress: 0x1008
33# CHECK-NEXT: FileSize: 8
34# CHECK-NEXT: MemSize: 8
35# CHECK-NEXT: Flags [
36# CHECK-NEXT: PF_R
37# CHECK-NEXT: PF_W
38# CHECK-NEXT: ]
39# CHECK-NEXT: Alignment:
40# CHECK-NEXT: }
41
42.section .text, "ax"
43.quad 0
44
45.section .data, "aw"
46.quad 0
deps/lld/test/ELF/linkerscript/memory-err.s created+16
...@@ -0,0 +1,16 @@
1# REQUIRES: x86
2# RUN: llvm-mc -filetype=obj -triple=x86_64-unknown-linux %s -o %t
3# RUN: echo "MEMORY { name : ORIGIN = DATA_SEGMENT_RELRO_END; }" > %t.script
4# RUN: not ld.lld -shared -o %t2 --script %t.script %t 2>&1 | FileCheck %s
5# CHECK: error: {{.*}}.script:1: unable to calculate page size
6
7# RUN: echo "MEMORY { name : ORIGIN = CONSTANT(COMMONPAGESIZE); }" > %t.script
8# RUN: not ld.lld -shared -o %t2 --script %t.script %t 2>&1 |\
9# RUN: FileCheck %s --check-prefix=ERR2
10# ERR2: error: {{.*}}.script:1: unable to calculate page size
11
12# RUN: llvm-mc -filetype=obj -triple=x86_64-unknown-linux %s -o %t
13# RUN: echo "MEMORY { name : ORIGIN = .; }" > %t.script
14# RUN: not ld.lld -shared -o %t2 --script %t.script %t 2>&1 |\
15# RUN: FileCheck %s --check-prefix=ERR3
16# ERR3: error: {{.*}}.script:1: unable to get location counter value
deps/lld/test/ELF/linkerscript/memory.s+2-2
...@@ -21,8 +21,8 @@...@@ -21,8 +21,8 @@
21# RUN: rom (rx) : org = (0x80 * 0x1000 * 0x1000), len = 64M \21# RUN: rom (rx) : org = (0x80 * 0x1000 * 0x1000), len = 64M \
22# RUN: } \22# RUN: } \
23# RUN: SECTIONS { \23# RUN: SECTIONS { \
24# RUN: .text : { *(.text) } > rom \24# RUN: .text : { *(.text) } >rom \
25# RUN: .data : { *(.data) } > ram \25# RUN: .data : { *(.data) } >ram \
26# RUN: }" > %t.script26# RUN: }" > %t.script
27# RUN: ld.lld -o %t1 --script %t.script %t27# RUN: ld.lld -o %t1 --script %t.script %t
28# RUN: llvm-objdump -section-headers %t1 | FileCheck -check-prefix=RAMROM %s28# RUN: llvm-objdump -section-headers %t1 | FileCheck -check-prefix=RAMROM %s
deps/lld/test/ELF/linkerscript/memory2.s created+14
...@@ -0,0 +1,14 @@
1# REQUIRES: x86
2# RUN: llvm-mc -filetype=obj -triple=x86_64-unknown-linux %s -o %t
3# RUN: echo "MEMORY { ram (rwx) : ORIGIN = 0, LENGTH = 2K } \
4# RUN: SECTIONS { .text : { *(.text*) } > ram }" > %t.script
5# RUN: ld.lld -o %t2 --script %t.script %t
6
7.text
8.global _start
9_start:
10 .zero 1024
11
12.section .text.foo,"ax",%progbits
13foo:
14 nop
deps/lld/test/ELF/linkerscript/memory3.s created+23
...@@ -0,0 +1,23 @@
1# REQUIRES: x86
2# RUN: llvm-mc -filetype=obj -triple=x86_64-unknown-linux %s -o %t
3# RUN: echo "MEMORY { ram2 (ax) : ORIGIN = 0x1000, LENGTH = 1K \
4# RUN: ram1 (ax) : ORIGIN = 0x4000, LENGTH = 1K } \
5# RUN: SECTIONS {}" > %t1.script
6# RUN: ld.lld -o %t1 --script %t1.script %t
7# RUN: llvm-objdump -section-headers %t1 | FileCheck %s
8
9# RUN: echo "MEMORY { ram1 (ax) : ORIGIN = 0x1000, LENGTH = 1K \
10# RUN: ram2 (ax) : ORIGIN = 0x4000, LENGTH = 1K } \
11# RUN: SECTIONS {}" > %t2.script
12# RUN: ld.lld -o %t2 --script %t2.script %t
13# RUN: llvm-objdump -section-headers %t2 | FileCheck %s
14
15## Check we place .text into first defined memory region with appropriate flags.
16# CHECK: Sections:
17# CHECK: Idx Name Size Address
18# CHECK: 0 00000000 0000000000000000
19# CHECK: 1 .text 00000001 0000000000001000
20
21.section .text.foo,"ax",%progbits
22foo:
23 nop
deps/lld/test/ELF/linkerscript/merge-sections.s+1-1
...@@ -36,7 +36,7 @@...@@ -36,7 +36,7 @@
36# RUN: llvm-readobj -s -t %t2 | FileCheck %s --check-prefix=GC36# RUN: llvm-readobj -s -t %t2 | FileCheck %s --check-prefix=GC
3737
38# GC: Name: .foo38# GC: Name: .foo
39# GC-NEXT: Type: SHT_PROGBITS39# GC-NEXT: Type: SHT_NOBITS
40# GC-NEXT: Flags [40# GC-NEXT: Flags [
41# GC-NEXT: SHF_ALLOC41# GC-NEXT: SHF_ALLOC
42# GC-NEXT: ]42# GC-NEXT: ]
deps/lld/test/ELF/linkerscript/no-space.s+2-2
...@@ -2,11 +2,11 @@...@@ -2,11 +2,11 @@
2# RUN: llvm-mc -filetype=obj -triple=x86_64-pc-linux %s -o %t.o2# RUN: llvm-mc -filetype=obj -triple=x86_64-pc-linux %s -o %t.o
33
4# RUN: echo "SECTIONS {foo 0 : {*(foo*)} }" > %t.script4# RUN: echo "SECTIONS {foo 0 : {*(foo*)} }" > %t.script
5# RUN: ld.lld -o %t --script %t.script %t.o -shared5# RUN: ld.lld --hash-style=sysv -o %t --script %t.script %t.o -shared
6# RUN: llvm-readobj -elf-output-style=GNU -l %t | FileCheck %s6# RUN: llvm-readobj -elf-output-style=GNU -l %t | FileCheck %s
77
8# RUN: echo "SECTIONS {foo : {*(foo*)} }" > %t.script8# RUN: echo "SECTIONS {foo : {*(foo*)} }" > %t.script
9# RUN: ld.lld -o %t --script %t.script %t.o -shared9# RUN: ld.lld --hash-style=sysv -o %t --script %t.script %t.o -shared
10# RUN: llvm-readobj -elf-output-style=GNU -l %t | FileCheck %s10# RUN: llvm-readobj -elf-output-style=GNU -l %t | FileCheck %s
1111
12# There is not enough address space available for the header, so just start the PT_LOAD12# There is not enough address space available for the header, so just start the PT_LOAD
deps/lld/test/ELF/linkerscript/nobits-offset.s created+18
...@@ -0,0 +1,18 @@
1# REQUIRES: x86
2# RUN: llvm-mc -filetype=obj -triple=x86_64-pc-linux %s -o %t.o
3# RUN: echo "SECTIONS { \
4# RUN: .sec1 (NOLOAD) : { . += 1; } \
5# RUN: .text : { *(.text) } \
6# RUN: };" > %t.script
7# RUN: ld.lld %t.o -T %t.script -o %t
8# RUN: llvm-readelf --sections %t | FileCheck %s
9
10# We used to misalign section offsets if the first section in a
11# PT_LOAD was SHT_NOBITS.
12
13# CHECK: [ 2] .text PROGBITS 0000000000000010 001010 000010 00 AX 0 0 16
14
15.global _start
16_start:
17 nop
18.p2align 4
deps/lld/test/ELF/linkerscript/noload.s+2-2
...@@ -4,10 +4,10 @@...@@ -4,10 +4,10 @@
4# RUN: .data_noload_a (NOLOAD) : { *(.data_noload_a) } \4# RUN: .data_noload_a (NOLOAD) : { *(.data_noload_a) } \
5# RUN: .data_noload_b (0x10000) (NOLOAD) : { *(.data_noload_b) } };" > %t.script5# RUN: .data_noload_b (0x10000) (NOLOAD) : { *(.data_noload_b) } };" > %t.script
6# RUN: ld.lld -o %t --script %t.script %t.o6# RUN: ld.lld -o %t --script %t.script %t.o
7# RUN: llvm-readobj --symbols -sections %t7# RUN: llvm-readobj --symbols -sections %t | FileCheck %s
88
9# CHECK: Section {9# CHECK: Section {
10# CHECK-NEXT: Index: 210# CHECK: Index: 2
11# CHECK-NEXT: Name: .data_noload_a11# CHECK-NEXT: Name: .data_noload_a
12# CHECK-NEXT: Type: SHT_NOBITS12# CHECK-NEXT: Type: SHT_NOBITS
13# CHECK-NEXT: Flags [13# CHECK-NEXT: Flags [
deps/lld/test/ELF/linkerscript/non-alloc.s+1-1
...@@ -2,7 +2,7 @@...@@ -2,7 +2,7 @@
2# RUN: llvm-mc -filetype=obj -triple=x86_64-pc-linux %s -o %t2# RUN: llvm-mc -filetype=obj -triple=x86_64-pc-linux %s -o %t
33
4# RUN: echo "SECTIONS { .foo 0 : {*(foo)} }" > %t.script4# RUN: echo "SECTIONS { .foo 0 : {*(foo)} }" > %t.script
5# RUN: ld.lld -o %t1 --script %t.script %t -shared5# RUN: ld.lld --hash-style=sysv -o %t1 --script %t.script %t -shared
6# RUN: llvm-readobj -elf-output-style=GNU -s -l %t1 | FileCheck %s6# RUN: llvm-readobj -elf-output-style=GNU -s -l %t1 | FileCheck %s
77
8# Test that we create all necessary PT_LOAD. We use to stop at the first8# Test that we create all necessary PT_LOAD. We use to stop at the first
deps/lld/test/ELF/linkerscript/operators.s+8
...@@ -1,6 +1,7 @@...@@ -1,6 +1,7 @@
1# REQUIRES: x861# REQUIRES: x86
2# RUN: llvm-mc -filetype=obj -triple=x86_64-unknown-linux %s -o %t2# RUN: llvm-mc -filetype=obj -triple=x86_64-unknown-linux %s -o %t
3# RUN: echo "SECTIONS { \3# RUN: echo "SECTIONS { \
4# RUN: _start = .; \
4# RUN: plus = 1 + 2 + 3; \5# RUN: plus = 1 + 2 + 3; \
5# RUN: minus = 5 - 1; \6# RUN: minus = 5 - 1; \
6# RUN: div = 6 / 2; \7# RUN: div = 6 / 2; \
...@@ -25,6 +26,10 @@...@@ -25,6 +26,10 @@
25# RUN: commonpagesize = CONSTANT (COMMONPAGESIZE); \26# RUN: commonpagesize = CONSTANT (COMMONPAGESIZE); \
26# RUN: . = 0xfff0; \27# RUN: . = 0xfff0; \
27# RUN: datasegmentalign = DATA_SEGMENT_ALIGN (0xffff, 0); \28# RUN: datasegmentalign = DATA_SEGMENT_ALIGN (0xffff, 0); \
29# RUN: datasegmentalign2 = DATA_SEGMENT_ALIGN (0, 0); \
30# RUN: _end = .; \
31# RUN: minus_rel = _end - 0x10; \
32# RUN: minus_abs = _end - _start; \
28# RUN: }" > %t.script33# RUN: }" > %t.script
29# RUN: ld.lld %t --script %t.script -o %t234# RUN: ld.lld %t --script %t.script -o %t2
30# RUN: llvm-objdump -t %t2 | FileCheck %s35# RUN: llvm-objdump -t %t2 | FileCheck %s
...@@ -51,6 +56,9 @@...@@ -51,6 +56,9 @@
51# CHECK: 00000000001000 *ABS* 00000000 maxpagesize56# CHECK: 00000000001000 *ABS* 00000000 maxpagesize
52# CHECK: 00000000001000 *ABS* 00000000 commonpagesize57# CHECK: 00000000001000 *ABS* 00000000 commonpagesize
53# CHECK: 0000000000ffff *ABS* 00000000 datasegmentalign58# CHECK: 0000000000ffff *ABS* 00000000 datasegmentalign
59# CHECK: 0000000000fff0 *ABS* 00000000 datasegmentalign2
60# CHECK: 0000000000ffe0 .text 00000000 minus_rel
61# CHECK: 0000000000fff0 *ABS* 00000000 minus_abs
5462
55## Mailformed number error.63## Mailformed number error.
56# RUN: echo "SECTIONS { . = 0x12Q41; }" > %t.script64# RUN: echo "SECTIONS { . = 0x12Q41; }" > %t.script
deps/lld/test/ELF/linkerscript/orphan-discard.s created+25
...@@ -0,0 +1,25 @@
1# REQUIRES: x86
2# RUN: llvm-mc -position-independent -filetype=obj -triple=x86_64-unknown-linux %s -o %t.o
3# RUN: echo "SECTIONS { \
4# RUN: . = 0xffffffff80000000; \
5# RUN: .text : ALIGN(4096) { *(.text) } \
6# RUN: .data : ALIGN(4096) { *(.data) } \
7# RUN: .bss : ALIGN(4096) { *(.bss); } \
8# RUN: . = ALIGN(4096); \
9# RUN: _end = .; \
10# RUN: /DISCARD/ : { *(.comment) } \
11# RUN: }" > %t.script
12# RUN: ld.lld -o %t --script %t.script %t.o
13# RUN: llvm-readelf -s -symbols %t | FileCheck %s
14
15# CHECK: .bss NOBITS ffffffff80002000 002008 000002 00 WA 0 0 4096
16# CHECK: ffffffff80003000 0 NOTYPE GLOBAL DEFAULT 3 _end
17
18.section .text, "ax"
19 ret
20
21.section .data, "aw"
22 .quad 0
23
24.section .bss, "", @nobits
25 .short 0
deps/lld/test/ELF/linkerscript/orphan-end.s created+57
...@@ -0,0 +1,57 @@
1# REQUIRES: x86
2# RUN: llvm-mc -filetype=obj -triple=x86_64-pc-linux %s -o %t.o
3
4# Test that .orphan_rx is placed after __stack_end. This matches bfd's
5# behavior when the orphan section is the last one.
6
7# RUN: echo "SECTIONS { \
8# RUN: __start_text = .; \
9# RUN: .text : { *(.text*) } \
10# RUN: __end_text = .; \
11# RUN: __stack_start = .; \
12# RUN: . = . + 0x1000; \
13# RUN: __stack_end = .; \
14# RUN: }" > %t.script
15# RUN: ld.lld -o %t --script %t.script %t.o
16# RUN: llvm-readelf -S --symbols %t | FileCheck %s
17
18# CHECK-DAG: .text PROGBITS 0000000000000000
19# CHECK-DAG: .orphan_rx PROGBITS 0000000000001004
20
21# CHECK-DAG: 0000000000000000 {{.*}} __start_text
22# CHECK-DAG: 0000000000000004 {{.*}} __end_text
23# CHECK-DAG: 0000000000000004 {{.*}} __stack_start
24# CHECK-DAG: 0000000000001004 {{.*}} __stack_end
25
26# Test that .orphan_rx is now placed before __stack_end. This matches bfd's
27# behavior when the orphan section is not the last one.
28
29# RUN: echo "SECTIONS { \
30# RUN: __start_text = .; \
31# RUN: .text : { *(.text*) } \
32# RUN: __end_text = .; \
33# RUN: __stack_start = .; \
34# RUN: . = . + 0x1000; \
35# RUN: __stack_end = .; \
36# RUN: .orphan_rw : { *(.orphan_rw*) } \
37# RUN: }" > %t.script
38# RUN: ld.lld -o %t --script %t.script %t.o
39# RUN: llvm-readelf -S --symbols %t | FileCheck --check-prefix=MIDDLE %s
40
41# MIDDLE-DAG: .text PROGBITS 0000000000000000
42# MIDDLE-DAG: .orphan_rx PROGBITS 0000000000000004
43
44# MIDDLE-DAG: 0000000000000000 {{.*}} __start_text
45# MIDDLE-DAG: 0000000000000004 {{.*}} __end_text
46# MIDDLE-DAG: 0000000000000004 {{.*}} __stack_start
47# MIDDLE-DAG: 0000000000001008 {{.*}} __stack_end
48
49 .global _start
50_start:
51 .zero 4
52
53 .section .orphan_rx,"ax"
54 .zero 4
55
56 .section .orphan_rw,"aw"
57 .zero 4
deps/lld/test/ELF/linkerscript/orphan-phdrs.s created+34
...@@ -0,0 +1,34 @@
1# REQUIRES: x86
2# RUN: llvm-mc -filetype=obj -triple=x86_64-unknown-linux %s -o %t.o
3# RUN: echo "PHDRS { \
4# RUN: exec PT_LOAD FLAGS(0x4 | 0x1); \
5# RUN: rw PT_LOAD FLAGS(0x4 | 0x2); \
6# RUN: } \
7# RUN: SECTIONS { \
8# RUN: .text : { *(.text) } :exec \
9# RUN: .empty : { *(.empty) } :rw \
10# RUN: .rw : { *(.rw) } \
11# RUN: }" > %t.script
12# RUN: ld.lld -o %t --script %t.script %t.o
13# RUN: llvm-readobj -elf-output-style=GNU -s -l %t | FileCheck %s
14
15## Check that the orphan section is placed correctly and belongs to
16## the correct segment.
17
18# CHECK: Section Headers
19# CHECK: .text
20# CHECK-NEXT: .orphan
21# CHECK-NEXT: .rw
22
23# CHECK: Segment Sections
24# CHECK-NEXT: .text .orphan
25# CHECK-NEXT: .rw
26
27.section .text, "ax"
28 ret
29
30.section .rw, "aw"
31 .quad 0
32
33.section .orphan, "ax"
34 ret
deps/lld/test/ELF/linkerscript/orphan-report.s created+54
...@@ -0,0 +1,54 @@
1# REQUIRES: x86
2# RUN: llvm-mc -filetype=obj -triple=x86_64-unknown-linux %s -o %t.o
3# RUN: echo "SECTIONS { .text : { *(.text.1) } }" > %t.script
4
5## Check we do not report orphans by default even with -verbose.
6# RUN: ld.lld -shared -o %t.out --script %t.script %t.o 2>&1 -verbose \
7# RUN: | FileCheck %s --check-prefix=DEFAULT
8# DEFAULT-NOT: placed
9
10## Check --orphan-handling=place has the same behavior as default.
11# RUN: ld.lld -shared --orphan-handling=place -o %t.out --script %t.script \
12# RUN: %t.o 2>&1 -verbose -error-limit=0 | FileCheck %s --check-prefix=DEFAULT
13
14## Check --orphan-handling=error reports errors about orphans.
15# RUN: not ld.lld -shared --orphan-handling=error -o %t.out --script %t.script \
16# RUN: %t.o 2>&1 -verbose -error-limit=0 | FileCheck %s --check-prefix=REPORT
17# REPORT: {{.*}}.o:(.text) is being placed in '.text'
18# REPORT-NEXT: {{.*}}.o:(.text.2) is being placed in '.text'
19# REPORT-NEXT: <internal>:(.comment) is being placed in '.comment'
20# REPORT-NEXT: <internal>:(.bss) is being placed in '.bss'
21# REPORT-NEXT: <internal>:(.bss.rel.ro) is being placed in '.bss.rel.ro'
22# REPORT-NEXT: <internal>:(.dynsym) is being placed in '.dynsym'
23# REPORT-NEXT: <internal>:(.gnu.version) is being placed in '.gnu.version'
24# REPORT-NEXT: <internal>:(.gnu.version_r) is being placed in '.gnu.version_r'
25# REPORT-NEXT: <internal>:(.gnu.hash) is being placed in '.gnu.hash'
26# REPORT-NEXT: <internal>:(.hash) is being placed in '.hash'
27# REPORT-NEXT: <internal>:(.dynamic) is being placed in '.dynamic'
28# REPORT-NEXT: <internal>:(.dynstr) is being placed in '.dynstr'
29# REPORT-NEXT: <internal>:(.rela.dyn) is being placed in '.rela.dyn'
30# REPORT-NEXT: <internal>:(.got) is being placed in '.got'
31# REPORT-NEXT: <internal>:(.got.plt) is being placed in '.got.plt'
32# REPORT-NEXT: <internal>:(.got.plt) is being placed in '.got.plt'
33# REPORT-NEXT: <internal>:(.rela.plt) is being placed in '.rela.plt'
34# REPORT-NEXT: <internal>:(.rela.plt) is being placed in '.rela.plt'
35# REPORT-NEXT: <internal>:(.plt) is being placed in '.plt'
36# REPORT-NEXT: <internal>:(.plt) is being placed in '.plt'
37# REPORT-NEXT: <internal>:(.eh_frame) is being placed in '.eh_frame'
38# REPORT-NEXT: <internal>:(.symtab) is being placed in '.symtab'
39# REPORT-NEXT: <internal>:(.shstrtab) is being placed in '.shstrtab'
40# REPORT-NEXT: <internal>:(.strtab) is being placed in '.strtab'
41
42## Check --orphan-handling=warn reports warnings about orphans.
43# RUN: ld.lld -shared --orphan-handling=warn -o %t.out --script %t.script \
44# RUN: %t.o 2>&1 -verbose | FileCheck %s --check-prefix=REPORT
45
46# RUN: not ld.lld --orphan-handling=foo -o %t.out --script %t.script %t.o 2>&1 \
47# RUN: | FileCheck %s --check-prefix=UNKNOWN
48# UNKNOWN: unknown --orphan-handling mode: foo
49
50.section .text.1,"a"
51 nop
52
53.section .text.2,"a"
54 nop
deps/lld/test/ELF/linkerscript/out-of-order.s+1-1
...@@ -1,7 +1,7 @@...@@ -1,7 +1,7 @@
1# REQUIRES: x861# REQUIRES: x86
2# RUN: llvm-mc -filetype=obj -triple=x86_64-linux %s -o %t.o2# RUN: llvm-mc -filetype=obj -triple=x86_64-linux %s -o %t.o
3# RUN: echo "SECTIONS { .data 0x4000 : { *(.data) } .text 0x2000 : { *(.text) } }" > %t.script3# RUN: echo "SECTIONS { .data 0x4000 : { *(.data) } .text 0x2000 : { *(.text) } }" > %t.script
4# RUN: ld.lld -o %t.so --script %t.script %t.o -shared4# RUN: ld.lld --hash-style=sysv -o %t.so --script %t.script %t.o -shared
5# RUN: llvm-objdump -section-headers %t.so | FileCheck %s5# RUN: llvm-objdump -section-headers %t.so | FileCheck %s
66
7# CHECK: Sections:7# CHECK: Sections:
deps/lld/test/ELF/linkerscript/phdr-check.s+2-2
...@@ -1,14 +1,14 @@...@@ -1,14 +1,14 @@
1# REQUIRES: x861# REQUIRES: x86
2# RUN: llvm-mc -filetype=obj -triple=x86_64-unknown-linux %s -o %t2# RUN: llvm-mc -filetype=obj -triple=x86_64-unknown-linux %s -o %t
33
4# RUN: echo "SECTIONS { . = 0x10000000; .text : {*(.text.*)} }" > %t.script4# RUN: echo "SECTIONS { . = 0x10000000 + SIZEOF_HEADERS; .text : {*(.text.*)} }" > %t.script
5# RUN: ld.lld -o %t1 --script %t.script %t5# RUN: ld.lld -o %t1 --script %t.script %t
6# RUN: llvm-readobj -program-headers %t1 | FileCheck %s6# RUN: llvm-readobj -program-headers %t1 | FileCheck %s
7# CHECK: ProgramHeaders [7# CHECK: ProgramHeaders [
8# CHECK-NEXT: ProgramHeader {8# CHECK-NEXT: ProgramHeader {
9# CHECK-NEXT: Type: PT_PHDR (0x6)9# CHECK-NEXT: Type: PT_PHDR (0x6)
10# CHECK-NEXT: Offset: 0x4010# CHECK-NEXT: Offset: 0x40
11# CHECK-NEXT: VirtualAddress: 0xFFFF04011# CHECK-NEXT: VirtualAddress: 0x10000040
1212
13.global _start13.global _start
14_start:14_start:
deps/lld/test/ELF/linkerscript/phdrs.s+2-2
...@@ -39,9 +39,9 @@...@@ -39,9 +39,9 @@
39# RUN: ld.lld -o %t1 --script %t.script %t39# RUN: ld.lld -o %t1 --script %t.script %t
40# RUN: llvm-readobj -program-headers %t1 | FileCheck --check-prefix=DEFHDR %s40# RUN: llvm-readobj -program-headers %t1 | FileCheck --check-prefix=DEFHDR %s
4141
42## Check that error is reported when trying to use phdr which is not listed 42## Check that error is reported when trying to use phdr which is not listed
43## inside PHDRS {} block43## inside PHDRS {} block
44## TODO: If script doesn't contain PHDRS {} block then default phdr is always 44## TODO: If script doesn't contain PHDRS {} block then default phdr is always
45## created and error is not reported.45## created and error is not reported.
46# RUN: echo "PHDRS { all PT_LOAD; } \46# RUN: echo "PHDRS { all PT_LOAD; } \
47# RUN: SECTIONS { .baz : {*(.foo.*)} :bar }" > %t.script47# RUN: SECTIONS { .baz : {*(.foo.*)} :bar }" > %t.script
deps/lld/test/ELF/linkerscript/provide-shared.s created+13
...@@ -0,0 +1,13 @@
1# REQUIRES: x86
2# RUN: llvm-mc -filetype=obj -triple=x86_64-pc-linux %s -o %t.o
3# RUN: llvm-mc -filetype=obj -triple=x86_64-pc-linux %p/Inputs/provide-shared.s -o %t2.o
4# RUN: ld.lld %t2.o -o %t2.so -shared
5# RUN: echo "SECTIONS { . = . + SIZEOF_HEADERS; PROVIDE(foo = 42);}" > %t.script
6# RUN: ld.lld -o %t --script %t.script %t.o %t2.so
7# RUN: llvm-objdump -t %t | FileCheck %s
8
9# CHECK: 000000000000002a *ABS* 00000000 foo
10
11.global _start
12_start:
13.quad foo
deps/lld/test/ELF/linkerscript/region-alias.s created+54
...@@ -0,0 +1,54 @@
1# REQUIRES: x86
2# RUN: llvm-mc -filetype=obj -triple=x86_64-unknown-linux %s -o %t
3# RUN: echo "MEMORY { \
4# RUN: ROM (rwx): ORIGIN = 0x1000, LENGTH = 0x100 \
5# RUN: RAM (rwx): ORIGIN = 0x2000, LENGTH = 0x100 \
6# RUN: } \
7# RUN: INCLUDE \"%t.script.inc\" \
8# RUN: SECTIONS { \
9# RUN: .text : { *(.text*) } > ALIAS_TEXT \
10# RUN: .data : { *(.data*) } > ALIAS_DATA \
11# RUN: }" > %t.script
12
13## .text to ROM, .data to RAM.
14# RUN: echo "REGION_ALIAS (\"ALIAS_TEXT\", ROM);" > %t.script.inc
15# RUN: echo "REGION_ALIAS (\"ALIAS_DATA\", RAM);" >> %t.script.inc
16# RUN: ld.lld %t --script %t.script -o %t2
17# RUN: llvm-objdump -section-headers %t2 | FileCheck %s
18# CHECK: .text 00000001 0000000000001000 TEXT DATA
19# CHECK: .data 00000008 0000000000002000 DATA
20
21## All to ROM.
22# RUN: echo "REGION_ALIAS (\"ALIAS_TEXT\", ROM);" > %t.script.inc
23# RUN: echo "REGION_ALIAS (\"ALIAS_DATA\", ROM);" >> %t.script.inc
24# RUN: ld.lld %t --script %t.script -o %t2
25# RUN: llvm-objdump -section-headers %t2 | FileCheck %s --check-prefix=RAM
26# RAM: .text 00000001 0000000000001000 TEXT DATA
27# RAM: .data 00000008 0000000000001001 DATA
28
29## Redefinition of region.
30# RUN: echo "REGION_ALIAS (\"ROM\", ROM);" > %t.script.inc
31# RUN: not ld.lld %t --script %t.script -o %t2 2>&1 | \
32# RUN: FileCheck %s --check-prefix=ERR1
33# ERR1: {{.*}}script.inc:1: redefinition of memory region 'ROM'
34
35## Redefinition of alias.
36# RUN: echo "REGION_ALIAS (\"ALIAS_TEXT\", ROM);" > %t.script.inc
37# RUN: echo "REGION_ALIAS (\"ALIAS_TEXT\", ROM);" >> %t.script.inc
38# RUN: not ld.lld %t --script %t.script -o %t2 2>&1 | \
39# RUN: FileCheck %s --check-prefix=ERR2
40# ERR2: {{.*}}script.inc:2: redefinition of memory region 'ALIAS_TEXT'
41
42## Attemp to create an alias for undefined region.
43# RUN: echo "REGION_ALIAS (\"ALIAS_TEXT\", FOO);" > %t.script.inc
44# RUN: not ld.lld %t --script %t.script -o %t2 2>&1 | \
45# RUN: FileCheck %s --check-prefix=ERR3
46# ERR3: {{.*}}script.inc:1: memory region 'FOO' is not defined
47
48.text
49.global _start
50_start:
51 nop
52
53.section .data,"aw"
54.quad 0
deps/lld/test/ELF/linkerscript/repsection-symbol.s+1-1
...@@ -6,7 +6,7 @@...@@ -6,7 +6,7 @@
6# RUN: .text : { *(.text) } \6# RUN: .text : { *(.text) } \
7# RUN: .foo : {foo1 = .; *(.foo.*) foo2 = .; *(.bar) foo3 = .;} \7# RUN: .foo : {foo1 = .; *(.foo.*) foo2 = .; *(.bar) foo3 = .;} \
8# RUN: }" > %t.script8# RUN: }" > %t.script
9# RUN: ld.lld -o %t1 --script %t.script %t -shared9# RUN: ld.lld --hash-style=sysv -o %t1 --script %t.script %t -shared
10# RUN: llvm-readobj -t %t1 | FileCheck %s10# RUN: llvm-readobj -t %t1 | FileCheck %s
1111
12# CHECK: Name: foo112# CHECK: Name: foo1
deps/lld/test/ELF/linkerscript/sections-sort.s+1-1
...@@ -2,7 +2,7 @@...@@ -2,7 +2,7 @@
2# RUN: llvm-mc -filetype=obj -triple=x86_64-unknown-linux %s -o %t.o2# RUN: llvm-mc -filetype=obj -triple=x86_64-unknown-linux %s -o %t.o
33
4# RUN: echo "SECTIONS { .text : {*(.text)} foo : {*(foo)}}" > %t.script4# RUN: echo "SECTIONS { .text : {*(.text)} foo : {*(foo)}}" > %t.script
5# RUN: ld.lld -o %t --script %t.script %t.o -shared5# RUN: ld.lld --hash-style=sysv -o %t --script %t.script %t.o -shared
6# RUN: llvm-objdump --section-headers %t | FileCheck %s6# RUN: llvm-objdump --section-headers %t | FileCheck %s
77
8# Test the section order. This is a case where at least with libstdc++'s8# Test the section order. This is a case where at least with libstdc++'s
deps/lld/test/ELF/linkerscript/segment-headers.s created+26
...@@ -0,0 +1,26 @@
1# REQUIRES: x86
2# RUN: llvm-mc -filetype=obj -triple=x86_64-unknown-linux %s -o %t.o
3# RUN: echo "SECTIONS { . = 0x2000; .text : AT(0x100000) { *(.text) } }" > %t.script
4# RUN: ld.lld -o %t --script %t.script %t.o
5# RUN: llvm-readobj -l %t | FileCheck %s
6
7# CHECK: ProgramHeaders [
8# CHECK-NEXT: ProgramHeader {
9# CHECK-NEXT: Type: PT_LOAD (0x1)
10# CHECK-NEXT: Offset: 0x1000
11# CHECK-NEXT: VirtualAddress: 0x2000
12# CHECK-NEXT: PhysicalAddress: 0x100000
13# CHECK-NEXT: FileSize: 1
14# CHECK-NEXT: MemSize: 1
15# CHECK-NEXT: Flags [ (0x5)
16# CHECK-NEXT: PF_R (0x4)
17# CHECK-NEXT: PF_X (0x1)
18# CHECK-NEXT: ]
19# CHECK-NEXT: Alignment: 4096
20# CHECK-NEXT: }
21
22.section .text
23.global _start
24
25_start:
26 ret
deps/lld/test/ELF/linkerscript/segment-start.s+1-1
...@@ -1,6 +1,6 @@...@@ -1,6 +1,6 @@
1// REQUIRES: x861// REQUIRES: x86
2// RUN: llvm-mc -filetype=obj -triple=x86_64-pc-linux %s -o %t.o2// RUN: llvm-mc -filetype=obj -triple=x86_64-pc-linux %s -o %t.o
3// RUN: ld.lld %t.o %S/Inputs/segment-start.script -shared -o %t.so3// RUN: ld.lld --hash-style=sysv %t.o %S/Inputs/segment-start.script -shared -o %t.so
4// RUN: llvm-readobj --dyn-symbols %t.so | FileCheck %s4// RUN: llvm-readobj --dyn-symbols %t.so | FileCheck %s
55
6// CHECK: Name: foobar16// CHECK: Name: foobar1
deps/lld/test/ELF/linkerscript/sort-non-script.s+1-1
...@@ -2,7 +2,7 @@...@@ -2,7 +2,7 @@
2# RUN: llvm-mc -filetype=obj -triple=x86_64-pc-linux %s -o %t2# RUN: llvm-mc -filetype=obj -triple=x86_64-pc-linux %s -o %t
33
4# RUN: echo "SECTIONS { foo : {*(foo)} }" > %t.script4# RUN: echo "SECTIONS { foo : {*(foo)} }" > %t.script
5# RUN: ld.lld -o %t1 --script %t.script %t -shared5# RUN: ld.lld --hash-style=sysv -o %t1 --script %t.script %t -shared
6# RUN: llvm-readobj -elf-output-style=GNU -s %t1 | FileCheck %s6# RUN: llvm-readobj -elf-output-style=GNU -s %t1 | FileCheck %s
77
8# CHECK: .text {{.*}} AX8# CHECK: .text {{.*}} AX
deps/lld/test/ELF/linkerscript/subalign.s+17
...@@ -22,6 +22,23 @@...@@ -22,6 +22,23 @@
22# SUBALIGN: 01000000 00000000 02000000 0000000022# SUBALIGN: 01000000 00000000 02000000 00000000
23# SUBALIGN: 03000000 00000000 04000000 0000000023# SUBALIGN: 03000000 00000000 04000000 00000000
2424
25## Test we do not assert or crash when dot(.) is used inside SUBALIGN.
26## ld.bfd does not allow to use dot in such expressions, our behavior is
27## different for simplicity of implementation. Value of dot is undefined.
28# RUN: echo "SECTIONS { . = 0x32; .aaa : SUBALIGN(.) { *(.aaa*) } }" > %t3.script
29# RUN: ld.lld %t1.o --script %t3.script -o %t3
30# RUN: llvm-objdump -s %t3 > /dev/null
31
32## Test we are able to link with zero alignment, this is consistent with bfd 2.26.1.
33# RUN: echo "SECTIONS { .aaa : SUBALIGN(0) { *(.aaa*) } }" > %t4.script
34# RUN: ld.lld %t1.o --script %t4.script -o %t4
35# RUN: llvm-objdump -s %t4 | FileCheck -check-prefix=SUBALIGN %s
36
37## Test we fail gracefuly when alignment value is not a power of 2.
38# RUN: echo "SECTIONS { .aaa : SUBALIGN(3) { *(.aaa*) } }" > %t5.script
39# RUN: not ld.lld %t1.o --script %t5.script -o %t5 2>&1 | FileCheck -check-prefix=ERR %s
40# ERR: {{.*}}.script:1: alignment must be power of 2
41
25.global _start42.global _start
26_start:43_start:
27 nop44 nop
deps/lld/test/ELF/linkerscript/symbol-assignexpr.s+7-1
...@@ -6,7 +6,7 @@...@@ -6,7 +6,7 @@
6# RUN: symbol2 = symbol + 0x1234; \6# RUN: symbol2 = symbol + 0x1234; \
7# RUN: symbol3 = symbol2; \7# RUN: symbol3 = symbol2; \
8# RUN: symbol4 = symbol + -4; \8# RUN: symbol4 = symbol + -4; \
9# RUN: symbol5 = symbol - ~ 0xfffb; \9# RUN: symbol5 = symbol - ~0xfffb; \
10# RUN: symbol6 = symbol - ~(0xfff0 + 0xb); \10# RUN: symbol6 = symbol - ~(0xfff0 + 0xb); \
11# RUN: symbol7 = symbol - ~ 0xfffb + 4; \11# RUN: symbol7 = symbol - ~ 0xfffb + 4; \
12# RUN: symbol8 = ~ 0xffff + 4; \12# RUN: symbol8 = ~ 0xffff + 4; \
...@@ -15,6 +15,9 @@...@@ -15,6 +15,9 @@
15# RUN: symbol11 = ((0x28000 + 0x1fff) & ~(0x1000 + -1)); \15# RUN: symbol11 = ((0x28000 + 0x1fff) & ~(0x1000 + -1)); \
16# RUN: symbol12 = 0x1234; \16# RUN: symbol12 = 0x1234; \
17# RUN: symbol12 += 1; \17# RUN: symbol12 += 1; \
18# RUN: symbol13 = !1; \
19# RUN: symbol14 = !0; \
20# RUN: symbol15 = 0!=1; \
18# RUN: bar = 0x5678; \21# RUN: bar = 0x5678; \
19# RUN: baz = 0x9abc; \22# RUN: baz = 0x9abc; \
20# RUN: }" > %t.script23# RUN: }" > %t.script
...@@ -39,6 +42,9 @@...@@ -39,6 +42,9 @@
39# CHECK-NEXT: fedcba9876543210 *ABS* 00000000 symbol1042# CHECK-NEXT: fedcba9876543210 *ABS* 00000000 symbol10
40# CHECK-NEXT: 0000000000029000 *ABS* 00000000 symbol1143# CHECK-NEXT: 0000000000029000 *ABS* 00000000 symbol11
41# CHECK-NEXT: 0000000000001235 *ABS* 00000000 symbol1244# CHECK-NEXT: 0000000000001235 *ABS* 00000000 symbol12
45# CHECK-NEXT: 0000000000000000 *ABS* 00000000 symbol13
46# CHECK-NEXT: 0000000000000001 *ABS* 00000000 symbol14
47# CHECK-NEXT: 0000000000000001 *ABS* 00000000 symbol15
4248
43# RUN: echo "SECTIONS { symbol2 = symbol; }" > %t2.script49# RUN: echo "SECTIONS { symbol2 = symbol; }" > %t2.script
44# RUN: not ld.lld -o %t2 --script %t2.script %t 2>&1 \50# RUN: not ld.lld -o %t2 --script %t2.script %t 2>&1 \
deps/lld/test/ELF/linkerscript/symbol-only-flags.s created+20
...@@ -0,0 +1,20 @@
1# REQUIRES: x86
2# RUN: llvm-mc -filetype=obj -triple=x86_64-unknown-linux %s -o %t.o
3# RUN: echo "SECTIONS { . = SIZEOF_HEADERS; \
4# RUN: .tbss : { *(.tbss) } \
5# RUN: .foo : { bar = .; } }" > %t.script
6# RUN: ld.lld -o %t --script %t.script %t.o
7# RUN: llvm-readobj -s %t | FileCheck %s
8
9## Check .foo does not get SHF_TLS flag.
10# CHECK: Section {
11# CHECK: Index:
12# CHECK: Name: .foo
13# CHECK-NEXT: Type: SHT_NOBITS
14# CHECK-NEXT: Flags [
15# CHECK-NEXT: SHF_ALLOC
16# CHECK-NEXT: SHF_WRITE
17# CHECK-NEXT: ]
18
19.section .tbss,"awT",@nobits
20.quad 0
deps/lld/test/ELF/linkerscript/symbol-only.s+1-1
...@@ -12,7 +12,7 @@...@@ -12,7 +12,7 @@
12# CHECK: Sections:12# CHECK: Sections:
13# CHECK-NEXT: Idx Name Size Address13# CHECK-NEXT: Idx Name Size Address
14# CHECK-NEXT: 0 00000000 000000000000000014# CHECK-NEXT: 0 00000000 0000000000000000
15# CHECK: abc 00000000 [[ADDR:[0-9a-f]*]] DATA15# CHECK: abc 00000000 [[ADDR:[0-9a-f]*]] BSS
16# CHECK-NEXT: bar 00000000 0000000000001000 DATA16# CHECK-NEXT: bar 00000000 0000000000001000 DATA
1717
18# CHECK: SYMBOL TABLE:18# CHECK: SYMBOL TABLE:
deps/lld/test/ELF/linkerscript/symbol-ordering-file.s created+23
...@@ -0,0 +1,23 @@
1# REQUIRES: x86
2# RUN: llvm-mc -filetype=obj -triple=x86_64-pc-linux %s -o %t.o
3# RUN: echo "SECTIONS { .foo : { *(.foo) } }" > %t.script
4
5# RUN: ld.lld %t.o --script %t.script -o %t.out
6# RUN: llvm-objdump -s %t.out| FileCheck %s --check-prefix=BEFORE
7# BEFORE: Contents of section .foo:
8# BEFORE-NEXT: 1122
9
10# RUN: echo "_foo2" > %t.ord
11# RUN: echo "_foo1" >> %t.ord
12# RUN: ld.lld --symbol-ordering-file %t.ord %t.o --script %t.script -o %t2.out
13# RUN: llvm-objdump -s %t2.out| FileCheck %s --check-prefix=AFTER
14# AFTER: Contents of section .foo:
15# AFTER-NEXT: 2211
16
17.section .foo,"ax",@progbits,unique,1
18_foo1:
19 .byte 0x11
20
21.section .foo,"ax",@progbits,unique,2
22_foo2:
23 .byte 0x22
deps/lld/test/ELF/linkerscript/symbol-reserved.s+28
...@@ -17,6 +17,34 @@...@@ -17,6 +17,34 @@
1717
18# ALIGNED: 0000000000200005 .text 00000000 .hidden newsym18# ALIGNED: 0000000000200005 .text 00000000 .hidden newsym
1919
20# RUN: echo "PROVIDE_HIDDEN(newsym = ALIGN(3, 8) + 10);" > %t.script
21# RUN: ld.lld -o %t1 %t.script %t
22# RUN: llvm-objdump -t %t1 | FileCheck --check-prefix=ALIGN-ADD %s
23# ALIGN-ADD: 0000000000000012 *ABS* 00000000 .hidden newsym
24
25# RUN: echo "PROVIDE_HIDDEN(newsym = ALIGN(11, 8) - 10);" > %t.script
26# RUN: ld.lld -o %t1 %t.script %t
27# RUN: llvm-objdump -t %t1 | FileCheck --check-prefix=ALIGN-SUB %s
28# ALIGN-SUB: 0000000000000006 *ABS* 00000000 .hidden newsym
29
30# RUN: echo "PROVIDE_HIDDEN(newsym = ALIGN(_end, CONSTANT(MAXPAGESIZE)) + 5);" > %t.script
31# RUN: ld.lld -o %t1 %t %t.script
32# RUN: llvm-objdump -t %t1 | FileCheck --check-prefix=RELATIVE %s
33# RELATIVE: 0000000000202005 .text 00000000 .hidden newsym
34# RELATIVE: 0000000000201007 .text 00000000 _end
35
36# RUN: echo "PROVIDE_HIDDEN(newsym = ALIGN(_end, CONSTANT(MAXPAGESIZE)) + 5);" > %t.script
37# RUN: ld.lld -o %t1 --script %p/Inputs/symbol-reserved.script %t %t.script
38# RUN: llvm-objdump -t %t1 | FileCheck --check-prefix=RELATIVE-ADD %s
39# RELATIVE-ADD: 0000000000001005 .text 00000000 .hidden newsym
40# RELATIVE-ADD: 0000000000000007 .text 00000000 .hidden _end
41
42# RUN: echo "PROVIDE_HIDDEN(newsym = ALIGN(_end, CONSTANT(MAXPAGESIZE)) - 5);" > %t.script
43# RUN: ld.lld -o %t1 --script %p/Inputs/symbol-reserved.script %t %t.script
44# RUN: llvm-objdump -t %t1 | FileCheck --check-prefix=RELATIVE-SUB %s
45# RELATIVE-SUB: 0000000000000ffb .text 00000000 .hidden newsym
46# RELATIVE-SUB: 0000000000000007 .text 00000000 .hidden _end
47
20.global _start48.global _start
21_start:49_start:
22 lea newsym(%rip),%rax50 lea newsym(%rip),%rax
deps/lld/test/ELF/linkerscript/symbols.s+5-8
...@@ -12,14 +12,13 @@...@@ -12,14 +12,13 @@
12# The symbol is not referenced. Don't provide it.12# The symbol is not referenced. Don't provide it.
13# RUN: echo "SECTIONS { PROVIDE(newsym = 1);}" > %t.script13# RUN: echo "SECTIONS { PROVIDE(newsym = 1);}" > %t.script
14# RUN: ld.lld -o %t1 --script %t.script %t14# RUN: ld.lld -o %t1 --script %t.script %t
15# RUN: llvm-objdump -t %t1 | FileCheck --check-prefix=PROVIDE1 %s15# RUN: llvm-objdump -t %t1 | FileCheck --check-prefix=DONTPROVIDE %s
16# PROVIDE1-NOT: 0000000000000001 *ABS* 00000000 newsym16# DONTPROVIDE-NOT: newsym
1717
18# The symbol is not referenced. Don't provide it.18# The symbol is not referenced. Don't provide it.
19# RUN: echo "SECTIONS { PROVIDE_HIDDEN(newsym = 1);}" > %t.script19# RUN: echo "SECTIONS { PROVIDE_HIDDEN(newsym = 1);}" > %t.script
20# RUN: ld.lld -o %t1 --script %t.script %t20# RUN: ld.lld -o %t1 --script %t.script %t
21# RUN: llvm-objdump -t %t1 | FileCheck --check-prefix=HIDDEN1 %s21# RUN: llvm-objdump -t %t1 | FileCheck --check-prefix=DONTPROVIDE %s
22# HIDDEN1-NOT: 0000000000000001 *ABS* 00000000 .hidden newsym
2322
24# Provide existing symbol. The value should be 0, even though we23# Provide existing symbol. The value should be 0, even though we
25# have value of 1 in PROVIDE()24# have value of 1 in PROVIDE()
...@@ -44,14 +43,12 @@...@@ -44,14 +43,12 @@
44# The symbol is not referenced. Don't provide it.43# The symbol is not referenced. Don't provide it.
45# RUN: echo "PROVIDE(newsym = 1);" > %t.script44# RUN: echo "PROVIDE(newsym = 1);" > %t.script
46# RUN: ld.lld -o %t1 --script %t.script %t45# RUN: ld.lld -o %t1 --script %t.script %t
47# RUN: llvm-objdump -t %t1 | FileCheck --check-prefix=PROVIDE4 %s46# RUN: llvm-objdump -t %t1 | FileCheck --check-prefix=DONTPROVIDE %s
48# PROVIDE4-NOT: 0000000000000001 *ABS* 00000000 newsym
4947
50# The symbol is not referenced. Don't provide it.48# The symbol is not referenced. Don't provide it.
51# RUN: echo "PROVIDE_HIDDEN(newsym = 1);" > %t.script49# RUN: echo "PROVIDE_HIDDEN(newsym = 1);" > %t.script
52# RUN: ld.lld -o %t1 --script %t.script %t50# RUN: ld.lld -o %t1 --script %t.script %t
53# RUN: llvm-objdump -t %t1 | FileCheck --check-prefix=HIDDEN4 %s51# RUN: llvm-objdump -t %t1 | FileCheck --check-prefix=DONTPROVIDE %s
54# HIDDEN4-NOT: 0000000000000001 *ABS* 00000000 .hidden newsym
5552
56# Provide existing symbol. The value should be 0, even though we53# Provide existing symbol. The value should be 0, even though we
57# have value of 1 in PROVIDE()54# have value of 1 in PROVIDE()
deps/lld/test/ELF/linkerscript/thunk-gen-mips.s created+40
...@@ -0,0 +1,40 @@
1# REQUIRES: mips
2# RUN: llvm-mc -filetype=obj -defsym=MAIN=1 -triple=mips-unknown-freebsd %s -o %t
3# RUN: llvm-mc -filetype=obj -defsym=TARGET=1 -triple=mips-unknown-freebsd %s -o %t1
4
5# SECTIONS command with the first pattern that does not match.
6# Linking a PIC and non-PIC object files triggers the LA25 thunk generation.
7# RUN: echo "SECTIONS { \
8# RUN: .text : { \
9# RUN: *(.nomatch) \
10# RUN: %t(.text) \
11# RUN: . = . + 0x100000 ; \
12# RUN: %t1(.text) \
13# RUN: } \
14# RUN: }" > %t.script
15# RUN: ld.lld -o %t.exe --script %t.script %t %t1
16# RUN: llvm-objdump -t %t.exe | FileCheck %s
17# CHECK: SYMBOL TABLE:
18# CHECK-ANY: 00000000 .text 00000000 _start
19# CHECK-ANY: 0010000c l F .text 00000010 __LA25Thunk_too_far
20# CHECK-ANY: 00100020 g F .text 00000024 too_far
21
22.ifdef MAIN
23.global _start
24_start:
25 j too_far
26 nop
27.endif
28
29.ifdef TARGET
30 .text
31 .abicalls
32 .set noreorder
33 .globl too_far
34 .ent too_far
35too_far:
36 nop
37 jr $ra
38 nop
39 .end too_far
40.endif
deps/lld/test/ELF/linkerscript/unused-synthetic.s+10
...@@ -13,6 +13,16 @@...@@ -13,6 +13,16 @@
13# CHECK: .text13# CHECK: .text
14# CHECK-NEXT: .dynsym14# CHECK-NEXT: .dynsym
1515
16# Test that the size of a removed unused synthetic input section is not added
17# to the output section size. Adding a symbol assignment prevents removal of
18# the output section, but does not cause the section size to be recomputed.
19# RUN: echo "SECTIONS { \
20# RUN: .got.plt : { a_sym = .; *(.got.plt) } \
21# RUN: }" > %t2.script
22# RUN: ld.lld -shared -o %t2.so --script %t2.script %t.o
23# RUN: llvm-objdump -section-headers %t2.so | FileCheck %s --check-prefix=CHECK2
24# CHECK2: .got.plt 00000000
25
16.global _start26.global _start
17_start:27_start:
18 nop28 nop
deps/lld/test/ELF/linkerscript/version-linker-symbol.s created+28
...@@ -0,0 +1,28 @@
1# REQUIRES: x86
2
3# RUN: echo "VER1 { global: _end; foo ; local: * ; } ;" > %t.script
4# RUN: llvm-mc -filetype=obj -triple=x86_64-pc-linux %s -o %t.o
5# RUN: ld.lld --version-script %t.script -shared %t.o -o %t.so
6# RUN: llvm-readobj -dyn-symbols %t.so | FileCheck %s
7
8# CHECK: Name: _end@@VER1
9# CHECK-NEXT: Value: 0
10# CHECK-NEXT: Size: 0
11# CHECK-NEXT: Binding: Global
12# CHECK-NEXT: Type: None
13# CHECK-NEXT: Other: 0
14# CHECK-NEXT: Section: .dynamic
15
16# CHECK: Name: foo@@VER1
17# CHECK-NEXT: Value: 0
18# CHECK-NEXT: Size: 0
19# CHECK-NEXT: Binding: Global
20# CHECK-NEXT: Type: None
21# CHECK-NEXT: Other: 0
22# CHECK-NEXT: Section: .text
23
24.global foo
25foo:
26 .data
27 .quad _end
28 .quad foo
deps/lld/test/ELF/lit.local.cfg-1
...@@ -1,2 +1 @@...@@ -1,2 +1 @@
1config.suffixes = ['.test', '.s', '.ll']1config.suffixes = ['.test', '.s', '.ll']
2
deps/lld/test/ELF/local-got-pie.s+1-1
...@@ -1,5 +1,5 @@...@@ -1,5 +1,5 @@
1// RUN: llvm-mc -filetype=obj -triple=x86_64-unknown-linux %s -o %t.o1// RUN: llvm-mc -filetype=obj -triple=x86_64-unknown-linux %s -o %t.o
2// RUN: ld.lld %t.o -o %t -pie2// RUN: ld.lld --hash-style=sysv %t.o -o %t -pie
3// RUN: llvm-readobj -s -r -d %t | FileCheck %s3// RUN: llvm-readobj -s -r -d %t | FileCheck %s
4// RUN: llvm-objdump -d %t | FileCheck --check-prefix=DISASM %s4// RUN: llvm-objdump -d %t | FileCheck --check-prefix=DISASM %s
55
deps/lld/test/ELF/local-got-shared.s+1-1
...@@ -1,5 +1,5 @@...@@ -1,5 +1,5 @@
1// RUN: llvm-mc -filetype=obj -triple=x86_64-unknown-linux %s -o %t.o1// RUN: llvm-mc -filetype=obj -triple=x86_64-unknown-linux %s -o %t.o
2// RUN: ld.lld %t.o -o %t -shared2// RUN: ld.lld --hash-style=sysv %t.o -o %t -shared
3// RUN: llvm-readobj -s -r -d %t | FileCheck %s3// RUN: llvm-readobj -s -r -d %t | FileCheck %s
4// RUN: llvm-objdump -d %t | FileCheck --check-prefix=DISASM %s4// RUN: llvm-objdump -d %t | FileCheck --check-prefix=DISASM %s
55
deps/lld/test/ELF/local-got.s+1-1
...@@ -1,7 +1,7 @@...@@ -1,7 +1,7 @@
1// RUN: llvm-mc -filetype=obj -triple=x86_64-unknown-linux %s -o %t.o1// RUN: llvm-mc -filetype=obj -triple=x86_64-unknown-linux %s -o %t.o
2// RUN: llvm-mc -filetype=obj -triple=x86_64-unknown-linux %p/Inputs/shared.s -o %t2.o2// RUN: llvm-mc -filetype=obj -triple=x86_64-unknown-linux %p/Inputs/shared.s -o %t2.o
3// RUN: ld.lld -shared %t2.o -o %t2.so3// RUN: ld.lld -shared %t2.o -o %t2.so
4// RUN: ld.lld %t.o %t2.so -o %t4// RUN: ld.lld --hash-style=sysv %t.o %t2.so -o %t
5// RUN: llvm-readobj -s -r -section-data %t | FileCheck %s5// RUN: llvm-readobj -s -r -section-data %t | FileCheck %s
6// RUN: llvm-objdump -d %t | FileCheck --check-prefix=DISASM %s6// RUN: llvm-objdump -d %t | FileCheck --check-prefix=DISASM %s
77
deps/lld/test/ELF/lto-plugin-ignore.s created+11
...@@ -0,0 +1,11 @@
1# REQUIRES: x86
2
3# RUN: llvm-mc -filetype=obj -triple=x86_64-unknown-linux %s -o %t
4# RUN: ld.lld %t -plugin-opt=/foo/bar -plugin-opt=-fresolution=zed \
5# RUN: -plugin-opt=-pass-through=-lgcc -plugin-opt=-function-sections \
6# RUN: -plugin-opt=-data-sections -o /dev/null
7
8# RUN: not ld.lld %t -plugin-opt=-data-sectionssss \
9# RUN: -plugin-opt=-function-sectionsss 2>&1 | FileCheck %s
10# CHECK: unknown option: -data-sectionsss
11# CHECK: unknown option: -function-sectionsss
deps/lld/test/ELF/lto/Inputs/data-ordering-lto.ll created+6
...@@ -0,0 +1,6 @@
1target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128"
2target triple = "x86_64-scei-ps4"
3
4@pat = global i32 33, align 4
5@tin = global i32 33, align 4
6@dipsy = global i32 33, align 4
deps/lld/test/ELF/lto/Inputs/linker-script-symbols-ipo.ll created+9
...@@ -0,0 +1,9 @@
1target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128"
2target triple = "x86_64-unknown-linux-gnu"
3
4declare i32 @bar()
5
6define i32 @_start() {
7 %1 = tail call i32 @bar()
8 ret i32 %1
9}
deps/lld/test/ELF/lto/Inputs/symbol-ordering-lto.ll created+10
...@@ -0,0 +1,10 @@
1target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128"
2target triple = "x86_64-scei-ps4"
3
4define i32 @tin() {
5 ret i32 22
6}
7
8define i32 @pat() {
9 ret i32 42
10}
deps/lld/test/ELF/lto/cache.ll+11-3
...@@ -7,7 +7,7 @@...@@ -7,7 +7,7 @@
7; Create two files that would be removed by cache pruning due to age.7; Create two files that would be removed by cache pruning due to age.
8; We should only remove files matching the pattern "llvmcache-*".8; We should only remove files matching the pattern "llvmcache-*".
9; RUN: touch -t 197001011200 %t.cache/llvmcache-foo %t.cache/foo9; RUN: touch -t 197001011200 %t.cache/llvmcache-foo %t.cache/foo
10; RUN: ld.lld --thinlto-cache-dir=%t.cache --thinlto-cache-policy prune_after=1h -o %t3 %t2.o %t.o10; RUN: ld.lld --thinlto-cache-dir=%t.cache --thinlto-cache-policy prune_after=1h:prune_interval=0s -o %t3 %t2.o %t.o
1111
12; Two cached objects, plus a timestamp file and "foo", minus the file we removed.12; Two cached objects, plus a timestamp file and "foo", minus the file we removed.
13; RUN: ls %t.cache | count 413; RUN: ls %t.cache | count 4
...@@ -16,13 +16,21 @@...@@ -16,13 +16,21 @@
16; RUN: %python -c "print(' ' * 65536)" > %t.cache/llvmcache-foo16; RUN: %python -c "print(' ' * 65536)" > %t.cache/llvmcache-foo
1717
18; This should leave the file in place.18; This should leave the file in place.
19; RUN: ld.lld --thinlto-cache-dir=%t.cache --thinlto-cache-policy cache_size_bytes=128k -o %t3 %t2.o %t.o19; RUN: ld.lld --thinlto-cache-dir=%t.cache --thinlto-cache-policy cache_size_bytes=128k:prune_interval=0s -o %t3 %t2.o %t.o
20; RUN: ls %t.cache | count 520; RUN: ls %t.cache | count 5
2121
22; This should remove it.22; This should remove it.
23; RUN: ld.lld --thinlto-cache-dir=%t.cache --thinlto-cache-policy cache_size_bytes=32k -o %t3 %t2.o %t.o23; RUN: ld.lld --thinlto-cache-dir=%t.cache --thinlto-cache-policy cache_size_bytes=32k:prune_interval=0s -o %t3 %t2.o %t.o
24; RUN: ls %t.cache | count 424; RUN: ls %t.cache | count 4
2525
26; Setting max number of files to 0 should disable the limit, not delete everything.
27; RUN: ld.lld --thinlto-cache-dir=%t.cache --thinlto-cache-policy prune_after=0s:cache_size=0%:cache_size_files=0:prune_interval=0s -o %t3 %t2.o %t.o
28; RUN: ls %t.cache | count 4
29
30; Delete everything except for the timestamp, "foo" and one cache file.
31; RUN: ld.lld --thinlto-cache-dir=%t.cache --thinlto-cache-policy prune_after=0s:cache_size=0%:cache_size_files=1:prune_interval=0s -o %t3 %t2.o %t.o
32; RUN: ls %t.cache | count 3
33
26target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128"34target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128"
27target triple = "x86_64-unknown-linux-gnu"35target triple = "x86_64-unknown-linux-gnu"
2836
deps/lld/test/ELF/lto/data-ordering-lto.s created+27
...@@ -0,0 +1,27 @@
1# REQUIRES: x86
2# RUN: llvm-mc -filetype=obj -triple=x86_64-scei-ps4 %s -o %t.o
3# RUN: llvm-as %p/Inputs/data-ordering-lto.ll -o %t.bc
4
5# Set up the symbol file
6# RUN: echo "tin " > %t_order_lto.txt
7# RUN: echo "dipsy " >> %t_order_lto.txt
8# RUN: echo "pat " >> %t_order_lto.txt
9
10# RUN: ld.lld --symbol-ordering-file %t_order_lto.txt %t.o %t.bc -o %t2.out
11# RUN: llvm-readobj -elf-output-style=GNU -t %t2.out| FileCheck %s
12
13# Check that the order is tin -> dipsy -> pat.
14
15# CHECK: Symbol table '.symtab' contains 5 entries:
16# CHECK-NEXT: Num: Value Size Type Bind Vis Ndx Name
17# CHECK-NEXT: 0: 0000000000000000 0 NOTYPE LOCAL DEFAULT UND
18# CHECK-NEXT: 1: 0000000000201000 0 NOTYPE GLOBAL DEFAULT 1 _start
19# CHECK-NEXT: 2: 0000000000202004 4 OBJECT GLOBAL DEFAULT 2 dipsy
20# CHECK-NEXT: 3: 0000000000202008 4 OBJECT GLOBAL DEFAULT 2 pat
21# CHECK-NEXT: 4: 0000000000202000 4 OBJECT GLOBAL DEFAULT 2 tin
22
23.globl _start
24_start:
25 movl $pat, %ecx
26 movl $dipsy, %ebx
27 movl $tin, %eax
deps/lld/test/ELF/lto/keep-undefined.ll created+20
...@@ -0,0 +1,20 @@
1; REQUIRES: x86
2; This test checks that symbols which are specified in "-u" switches
3; are kept over LTO if we link an executable.
4; RUN: llvm-as %s -o %t.o
5; RUN: ld.lld -m elf_x86_64 %t.o -o %tout -u foo
6; RUN: llvm-nm %tout | FileCheck %s
7
8; CHECK: T foo
9
10target triple = "x86_64-unknown-linux-gnu"
11target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128"
12
13define void @foo() {
14 ret void
15}
16
17define void @_start() {
18 call void @foo()
19 ret void
20}
deps/lld/test/ELF/lto/linker-script-symbols-assign.ll created+48
...@@ -0,0 +1,48 @@
1; REQUIRES: x86
2; RUN: llvm-as %s -o %t.o
3
4; RUN: echo "foo = 1;" > %t.script
5; RUN: ld.lld -m elf_x86_64 %t.o -o %t2 --script %t.script -save-temps
6; RUN: llvm-readobj -symbols %t2.lto.o | FileCheck %s
7
8; CHECK-NOT: bar
9; CHECK: Symbol {
10; CHECK: Name: foo
11; CHECK-NEXT: Value: 0x0
12; CHECK-NEXT: Size: 4
13; CHECK-NEXT: Binding: Weak
14; CHECK-NEXT: Type: Object
15; CHECK-NEXT: Other: 0
16; CHECK-NEXT: Section: .bss.foo
17; CHECK-NEXT: }
18; CHECK-NEXT:]
19
20; RUN: llvm-readobj -symbols %t2 | FileCheck %s --check-prefix=VAL
21; VAL: Symbol {
22; VAL: Name: foo
23; VAL-NEXT: Value: 0x1
24; VAL-NEXT: Size:
25; VAL-NEXT: Binding: Global
26; VAL-NEXT: Type: None
27; VAL-NEXT: Other:
28; VAL-NEXT: Section: Absolute
29; VAL-NEXT: }
30
31; RUN: echo "zed = 1;" > %t2.script
32; RUN: ld.lld -m elf_x86_64 %t.o -o %t3 --script %t2.script
33; RUN: llvm-readobj -symbols %t3 | FileCheck %s --check-prefix=ABS
34; ABS: Symbol {
35; ABS: Name: zed
36; ABS-NEXT: Value: 0x1
37; ABS-NEXT: Size: 0
38; ABS-NEXT: Binding: Global
39; ABS-NEXT: Type: None
40; ABS-NEXT: Other: 0
41; ABS-NEXT: Section: Absolute
42; ABS-NEXT: }
43
44target triple = "x86_64-unknown-linux-gnu"
45target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128"
46
47@foo = global i32 0
48@bar = global i32 0
deps/lld/test/ELF/lto/linker-script-symbols-ipo.ll created+32
...@@ -0,0 +1,32 @@
1; REQUIRES: x86
2; RUN: llvm-as %s -o %t1.o
3; RUN: llvm-as %S/Inputs/linker-script-symbols-ipo.ll -o %t2.o
4; RUN: echo "bar = foo;" > %t.script
5
6;; Check that without linkerscript bar is inlined.
7; RUN: ld.lld -m elf_x86_64 %t1.o %t2.o -o %t3 -save-temps
8; RUN: llvm-objdump -d %t3 | FileCheck %s --check-prefix=IPO
9; IPO: Disassembly of section .text:
10; IPO: _start:
11; IPO-NEXT: 201000: {{.*}} movl $1, %eax
12; IPO-NEXT: 201005: {{.*}} retq
13
14;; Check that LTO does not do IPO for symbols assigned by script.
15; RUN: ld.lld -m elf_x86_64 %t1.o %t2.o -o %t4 --script %t.script -save-temps
16; RUN: llvm-objdump -d %t4 | FileCheck %s --check-prefix=NOIPO
17; NOIPO: Disassembly of section .text:
18; NOIPO: foo:
19; NOIPO-NEXT: 201010: {{.*}} movl $2, %eax
20; NOIPO: _start:
21; NOIPO-NEXT: 201020: {{.*}} jmp -21 <foo>
22
23target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128"
24target triple = "x86_64-unknown-linux-gnu"
25
26define i32 @bar() {
27 ret i32 1
28}
29
30define i32 @foo() {
31 ret i32 2
32}
deps/lld/test/ELF/lto/linker-script-symbols.ll created+29
...@@ -0,0 +1,29 @@
1; REQUIRES: x86
2; RUN: llvm-as %s -o %t.o
3; RUN: echo "foo = bar;" > %t.script
4
5; RUN: ld.lld -m elf_x86_64 %t.o -o %t2 --script %t.script -save-temps
6; RUN: llvm-readobj -symbols %t2.lto.o | FileCheck %s
7
8; CHECK-NOT: zed
9; CHECK: Symbol {
10; CHECK: Name: bar
11; CHECK-NEXT: Value:
12; CHECK-NEXT: Size:
13; CHECK-NEXT: Binding: Global
14; CHECK-NEXT: Type: Function
15; CHECK-NEXT: Other:
16; CHECK-NEXT: Section:
17; CHECK-NEXT: }
18; CHECK-NOT: zed
19
20target triple = "x86_64-unknown-linux-gnu"
21target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128"
22
23define void @bar() {
24 ret void
25}
26
27define void @zed() {
28 ret void
29}
deps/lld/test/ELF/lto/opt-level.ll+17-4
...@@ -2,18 +2,31 @@...@@ -2,18 +2,31 @@
2; RUN: llvm-as -o %t.o %s2; RUN: llvm-as -o %t.o %s
3; RUN: ld.lld -o %t0 -m elf_x86_64 -e main --lto-O0 %t.o3; RUN: ld.lld -o %t0 -m elf_x86_64 -e main --lto-O0 %t.o
4; RUN: llvm-nm %t0 | FileCheck --check-prefix=CHECK-O0 %s4; RUN: llvm-nm %t0 | FileCheck --check-prefix=CHECK-O0 %s
5; RUN: ld.lld -o %t0 -m elf_x86_64 -e main --plugin-opt=O0 %t.o
6; RUN: llvm-nm %t0 | FileCheck --check-prefix=CHECK-O0 %s
5; RUN: ld.lld -o %t2 -m elf_x86_64 -e main --lto-O2 %t.o7; RUN: ld.lld -o %t2 -m elf_x86_64 -e main --lto-O2 %t.o
6; RUN: llvm-nm %t2 | FileCheck --check-prefix=CHECK-O2 %s8; RUN: llvm-nm %t2 | FileCheck --check-prefix=CHECK-O2 %s
7; RUN: ld.lld -o %t2a -m elf_x86_64 -e main %t.o9; RUN: ld.lld -o %t2a -m elf_x86_64 -e main %t.o
8; RUN: llvm-nm %t2a | FileCheck --check-prefix=CHECK-O2 %s10; RUN: llvm-nm %t2a | FileCheck --check-prefix=CHECK-O2 %s
11; RUN: ld.lld -o %t2 -m elf_x86_64 -e main --plugin-opt=O2 %t.o
12; RUN: llvm-nm %t2 | FileCheck --check-prefix=CHECK-O2 %s
913
10; Reject invalid optimization levels.14; Reject invalid optimization levels.
11; RUN: not ld.lld -o %t3 -m elf_x86_64 -e main --lto-O6 %t.o 2>&1 | \15; RUN: not ld.lld -o %t3 -m elf_x86_64 -e main --lto-O6 %t.o 2>&1 | \
12; RUN: FileCheck --check-prefix=INVALID %s16; RUN: FileCheck --check-prefix=INVALID1 %s
13; INVALID: invalid optimization level for LTO: 617; INVALID1: invalid optimization level for LTO: 6
18; RUN: not ld.lld -o %t3 -m elf_x86_64 -e main --plugin-opt=O6 %t.o 2>&1 | \
19; RUN: FileCheck --check-prefix=INVALID1 %s
20; RUN: not ld.lld -o %t3 -m elf_x86_64 -e main --plugin-opt=Ofoo %t.o 2>&1 | \
21; RUN: FileCheck --check-prefix=INVALID2 %s
22; INVALID2: --plugin-opt: number expected, but got 'foo'
23
14; RUN: not ld.lld -o %t3 -m elf_x86_64 -e main --lto-O-1 %t.o 2>&1 | \24; RUN: not ld.lld -o %t3 -m elf_x86_64 -e main --lto-O-1 %t.o 2>&1 | \
15; RUN: FileCheck --check-prefix=INVALIDNEGATIVE %s25; RUN: FileCheck --check-prefix=INVALIDNEGATIVE1 %s
16; INVALIDNEGATIVE: invalid optimization level for LTO: -126; INVALIDNEGATIVE1: invalid optimization level for LTO: 4294967295
27; RUN: not ld.lld -o %t3 -m elf_x86_64 -e main --plugin-opt=O-1 %t.o 2>&1 | \
28; RUN: FileCheck --check-prefix=INVALIDNEGATIVE2 %s
29; INVALIDNEGATIVE2: invalid optimization level for LTO: 4294967295
1730
18target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128"31target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128"
19target triple = "x86_64-unknown-linux-gnu"32target triple = "x86_64-unknown-linux-gnu"
deps/lld/test/ELF/lto/opt-remarks.ll+10-15
...@@ -15,13 +15,13 @@...@@ -15,13 +15,13 @@
15; CHECK-NEXT: ret i32 %a.i15; CHECK-NEXT: ret i32 %a.i
16; CHECK-NEXT: }16; CHECK-NEXT: }
1717
18; YAML: --- !Analysis18; YAML: --- !Passed
19; YAML-NEXT: Pass: inline19; YAML-NEXT: Pass: inline
20; YAML-NEXT: Name: CanBeInlined20; YAML-NEXT: Name: Inlined
21; YAML-NEXT: Function: main21; YAML-NEXT: Function: main
22; YAML-NEXT: Args:22; YAML-NEXT: Args:
23; YAML-NEXT: - Callee: tinkywinky23; YAML-NEXT: - Callee: tinkywinky
24; YAML-NEXT: - String: ' can be inlined into '24; YAML-NEXT: - String: ' inlined into '
25; YAML-NEXT: - Caller: main25; YAML-NEXT: - Caller: main
26; YAML-NEXT: - String: ' with cost='26; YAML-NEXT: - String: ' with cost='
27; YAML-NEXT: - Cost: '0'27; YAML-NEXT: - Cost: '0'
...@@ -29,19 +29,9 @@...@@ -29,19 +29,9 @@
29; YAML-NEXT: - Threshold: '337'29; YAML-NEXT: - Threshold: '337'
30; YAML-NEXT: - String: ')'30; YAML-NEXT: - String: ')'
31; YAML-NEXT: ...31; YAML-NEXT: ...
32; YAML-NEXT: --- !Passed
33; YAML-NEXT: Pass: inline
34; YAML-NEXT: Name: Inlined
35; YAML-NEXT: Function: main
36; YAML-NEXT: Args:
37; YAML-NEXT: - Callee: tinkywinky
38; YAML-NEXT: - String: ' inlined into '
39; YAML-NEXT: - Caller: main
40; YAML-NEXT: ...
4132
42; YAML-HOT: ...33; YAML-HOT: --- !Passed
43; YAML-HOT: --- !Passed34; YAML-HOT-NEXT: Pass: inline
44; YAML-HOT: Pass: inline
45; YAML-HOT-NEXT: Name: Inlined35; YAML-HOT-NEXT: Name: Inlined
46; YAML-HOT-NEXT: Function: main36; YAML-HOT-NEXT: Function: main
47; YAML-HOT-NEXT: Hotness: 30037; YAML-HOT-NEXT: Hotness: 300
...@@ -49,6 +39,11 @@...@@ -49,6 +39,11 @@
49; YAML-HOT-NEXT: - Callee: tinkywinky39; YAML-HOT-NEXT: - Callee: tinkywinky
50; YAML-HOT-NEXT: - String: ' inlined into '40; YAML-HOT-NEXT: - String: ' inlined into '
51; YAML-HOT-NEXT: - Caller: main41; YAML-HOT-NEXT: - Caller: main
42; YAML-HOT-NEXT: - String: ' with cost='
43; YAML-HOT-NEXT: - Cost: '0'
44; YAML-HOT-NEXT: - String: ' (threshold='
45; YAML-HOT-NEXT: - Threshold: '337'
46; YAML-HOT-NEXT: - String: ')'
52; YAML-HOT-NEXT: ...47; YAML-HOT-NEXT: ...
5348
54target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128"49target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128"
deps/lld/test/ELF/lto/relocatable.ll created+55
...@@ -0,0 +1,55 @@
1; REQUIRES: x86
2; RUN: llvm-as %s -o %t1.o
3; RUN: ld.lld %t1.o -r -o %t
4; RUN: llvm-readobj -symbols %t | FileCheck %s
5
6; CHECK: Symbols [
7; CHECK-NEXT: Symbol {
8; CHECK-NEXT: Name:
9; CHECK-NEXT: Value: 0x0
10; CHECK-NEXT: Size: 0
11; CHECK-NEXT: Binding: Local
12; CHECK-NEXT: Type: None
13; CHECK-NEXT: Other: 0
14; CHECK-NEXT: Section: Undefined
15; CHECK-NEXT: }
16; CHECK-NEXT: Symbol {
17; CHECK-NEXT: Name:
18; CHECK-NEXT: Value: 0x0
19; CHECK-NEXT: Size: 0
20; CHECK-NEXT: Binding: Local
21; CHECK-NEXT: Type: Section
22; CHECK-NEXT: Other: 0
23; CHECK-NEXT: Section: .text
24; CHECK-NEXT: }
25; CHECK-NEXT: Symbol {
26; CHECK-NEXT: Name:
27; CHECK-NEXT: Value: 0x0
28; CHECK-NEXT: Size: 0
29; CHECK-NEXT: Binding: Local
30; CHECK-NEXT: Type: Section
31; CHECK-NEXT: Other: 0
32; CHECK-NEXT: Section: .text.foo
33; CHECK-NEXT: }
34; CHECK-NEXT: Symbol {
35; CHECK-NEXT: Name: foo
36; CHECK-NEXT: Value: 0x0
37; CHECK-NEXT: Size: 1
38; CHECK-NEXT: Binding: Global
39; CHECK-NEXT: Type: Function
40; CHECK-NEXT: Other: 0
41; CHECK-NEXT: Section: .text.foo
42; CHECK-NEXT: }
43; CHECK-NEXT: ]
44
45target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128"
46target triple = "x86_64-unknown-linux-gnu"
47
48define void @foo() {
49 call void @bar()
50 ret void
51}
52
53define internal void @bar() {
54 ret void
55}
deps/lld/test/ELF/lto/save-temps.ll+7
...@@ -9,6 +9,13 @@...@@ -9,6 +9,13 @@
9; RUN: llvm-nm a.out.lto.o | FileCheck %s9; RUN: llvm-nm a.out.lto.o | FileCheck %s
10; RUN: llvm-dis a.out.0.0.preopt.bc10; RUN: llvm-dis a.out.0.0.preopt.bc
1111
12; RUN: rm -f a.out a.out.lto.bc a.out.lto.o
13; RUN: ld.lld -shared -m elf_x86_64 %t.o %t2.o --plugin-opt=save-temps
14; RUN: llvm-nm a.out | FileCheck %s
15; RUN: llvm-nm a.out.0.0.preopt.bc | FileCheck %s
16; RUN: llvm-nm a.out.lto.o | FileCheck %s
17; RUN: llvm-dis a.out.0.0.preopt.bc
18
12target triple = "x86_64-unknown-linux-gnu"19target triple = "x86_64-unknown-linux-gnu"
13target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128"20target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128"
1421
deps/lld/test/ELF/lto/section-name.ll created+35
...@@ -0,0 +1,35 @@
1; REQUIRES: x86
2; RUN: llvm-as %s -o %t.o
3; RUN: ld.lld %t.o -o %t.so -shared
4; RUN: llvm-readelf -s %t.so | FileCheck %s
5; RUN: ld.lld %t.o -o %t.so -shared --gc-sections
6; RUN: llvm-readelf -s %t.so | FileCheck --check-prefix=GC %s
7
8target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128"
9target triple = "x86_64-unknown-linux-gnu"
10
11@foo = hidden global i32 42, section "foo_section"
12@bar = hidden global i32 42, section "bar_section"
13@zed = hidden global i32 42, section "zed_section"
14
15@__start_foo_section = external global i32
16@__stop_bar_section = external global i32
17
18define hidden i32* @use1() {
19 ret i32* @__start_foo_section
20}
21
22define i32* @use2() {
23 ret i32* @__stop_bar_section
24}
25
26; CHECK-NOT: zed_section
27; CHECK: foo_section PROGBITS
28; CHECK-NEXT: bar_section PROGBITS
29; CHECK-NOT: zed_section
30
31; GC-NOT: zed_section
32; GC-NOT: foo_section
33; GC: bar_section PROGBITS
34; GC-NOT: zed_section
35; GC-NOT: foo_section
deps/lld/test/ELF/lto/shlib-undefined.ll+1-1
...@@ -1,6 +1,6 @@...@@ -1,6 +1,6 @@
1; REQUIRES: x861; REQUIRES: x86
2; RUN: llvm-as %s -o %t.o2; RUN: llvm-as %s -o %t.o
3; RUN: echo .global __progname > %t2.s3; RUN: echo ".global __progname; .data; .dc.a __progname" > %t2.s
4; RUN: llvm-mc -filetype=obj -triple=x86_64-unknown-linux %t2.s -o %t2.o4; RUN: llvm-mc -filetype=obj -triple=x86_64-unknown-linux %t2.s -o %t2.o
5; RUN: ld.lld -shared %t2.o -o %t2.so5; RUN: ld.lld -shared %t2.o -o %t2.so
6; RUN: ld.lld -o %t %t.o %t2.so6; RUN: ld.lld -o %t %t.o %t2.so
deps/lld/test/ELF/lto/symbol-ordering-lto.s created+25
...@@ -0,0 +1,25 @@
1# REQUIRES: x86
2# RUN: llvm-mc -filetype=obj -triple=x86_64-scei-ps4 %s -o %t.o
3# RUN: llvm-as %p/Inputs/symbol-ordering-lto.ll -o %t.bc
4
5# Set up the symbol file
6# RUN: echo "tin " > %t_order_lto.txt
7# RUN: echo "_start " >> %t_order_lto.txt
8# RUN: echo "pat " >> %t_order_lto.txt
9
10# RUN: ld.lld --symbol-ordering-file %t_order_lto.txt %t.o %t.bc -o %t2.out
11# RUN: llvm-readobj -elf-output-style=GNU -t %t2.out| FileCheck %s
12
13# Check that the order is tin -> _start -> pat.
14
15# CHECK: Symbol table '.symtab' contains 4 entries:
16# CHECK-NEXT: Num: Value Size Type Bind Vis Ndx Name
17# CHECK-NEXT: 0: 0000000000000000 0 NOTYPE LOCAL DEFAULT UND
18# CHECK-NEXT: 1: 0000000000201008 0 NOTYPE GLOBAL DEFAULT 1 _start
19# CHECK-NEXT: 2: 0000000000201020 6 FUNC GLOBAL DEFAULT 1 pat
20# CHECK-NEXT: 3: 0000000000201000 6 FUNC GLOBAL DEFAULT 1 tin
21
22.globl _start
23_start:
24 call pat
25 call tin
deps/lld/test/ELF/lto/thinlto.ll+4-4
...@@ -6,14 +6,14 @@...@@ -6,14 +6,14 @@
6; First force single-threaded mode6; First force single-threaded mode
7; RUN: rm -f %t.lto.o %t1.lto.o7; RUN: rm -f %t.lto.o %t1.lto.o
8; RUN: ld.lld -save-temps --thinlto-jobs=1 -shared %t.o %t2.o -o %t8; RUN: ld.lld -save-temps --thinlto-jobs=1 -shared %t.o %t2.o -o %t
9; RUN: llvm-nm %t.lto.o | FileCheck %s --check-prefix=NM19; RUN: llvm-nm %t1.lto.o | FileCheck %s --check-prefix=NM1
10; RUN: llvm-nm %t1.lto.o | FileCheck %s --check-prefix=NM210; RUN: llvm-nm %t2.lto.o | FileCheck %s --check-prefix=NM2
1111
12; Next force multi-threaded mode12; Next force multi-threaded mode
13; RUN: rm -f %t2.lto.o %t21.lto.o13; RUN: rm -f %t2.lto.o %t21.lto.o
14; RUN: ld.lld -save-temps --thinlto-jobs=2 -shared %t.o %t2.o -o %t214; RUN: ld.lld -save-temps --thinlto-jobs=2 -shared %t.o %t2.o -o %t2
15; RUN: llvm-nm %t2.lto.o | FileCheck %s --check-prefix=NM115; RUN: llvm-nm %t21.lto.o | FileCheck %s --check-prefix=NM1
16; RUN: llvm-nm %t21.lto.o | FileCheck %s --check-prefix=NM216; RUN: llvm-nm %t22.lto.o | FileCheck %s --check-prefix=NM2
1717
18; NM1: T f18; NM1: T f
19; NM1-NOT: U g19; NM1-NOT: U g
deps/lld/test/ELF/lto/verify-invalid.ll+2
...@@ -4,6 +4,8 @@...@@ -4,6 +4,8 @@
4; RUN: 2>&1 | FileCheck -check-prefix=DEFAULT %s4; RUN: 2>&1 | FileCheck -check-prefix=DEFAULT %s
5; RUN: ld.lld -m elf_x86_64 %t.o -o %t2 -mllvm -debug-pass=Arguments \5; RUN: ld.lld -m elf_x86_64 %t.o -o %t2 -mllvm -debug-pass=Arguments \
6; RUN: -disable-verify 2>&1 | FileCheck -check-prefix=DISABLE %s6; RUN: -disable-verify 2>&1 | FileCheck -check-prefix=DISABLE %s
7; RUN: ld.lld -m elf_x86_64 %t.o -o %t2 -mllvm -debug-pass=Arguments \
8; RUN: --plugin-opt=disable-verify 2>&1 | FileCheck -check-prefix=DISABLE %s
79
8target triple = "x86_64-unknown-linux-gnu"10target triple = "x86_64-unknown-linux-gnu"
9target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128"11target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128"
deps/lld/test/ELF/lto/wrap-1.ll+1-1
...@@ -19,7 +19,7 @@...@@ -19,7 +19,7 @@
1919
20; Make sure that the 'r' (linker redefined) bit is set for bar and __wrap_bar20; Make sure that the 'r' (linker redefined) bit is set for bar and __wrap_bar
21; in the resolutions file.21; in the resolutions file.
22; RESOLS: ,bar,r22; RESOLS: ,bar,xr
23; RESOLS: ,__wrap_bar,px23; RESOLS: ,__wrap_bar,px
24; RESOLS: ,__real_bar,pxr24; RESOLS: ,__real_bar,pxr
2525
deps/lld/test/ELF/lto/wrap-2.ll+2-2
...@@ -28,11 +28,11 @@...@@ -28,11 +28,11 @@
28; THIN-NEXT: jmp{{.*}}<bar>28; THIN-NEXT: jmp{{.*}}<bar>
2929
30; Check that bar and __wrap_bar retain their original binding.30; Check that bar and __wrap_bar retain their original binding.
31; BIND: Name: bar31; BIND: Name: __wrap_bar
32; BIND-NEXT: Value:32; BIND-NEXT: Value:
33; BIND-NEXT: Size:33; BIND-NEXT: Size:
34; BIND-NEXT: Binding: Local34; BIND-NEXT: Binding: Local
35; BIND: Name: __wrap_bar35; BIND: Name: bar
36; BIND-NEXT: Value:36; BIND-NEXT: Value:
37; BIND-NEXT: Size:37; BIND-NEXT: Size:
38; BIND-NEXT: Binding: Local38; BIND-NEXT: Binding: Local
deps/lld/test/ELF/many-alloc-sections.s+1-2
...@@ -1,8 +1,7 @@...@@ -1,8 +1,7 @@
1// REQUIRES: x861// REQUIRES: x86
2// RUN: llvm-mc -filetype=obj -triple x86_64-pc-linux-gnu %s -o %t.o2// RUN: llvm-mc -filetype=obj -triple x86_64-pc-linux-gnu %s -o %t.o
3// RUN: echo "SECTIONS { . = SIZEOF_HEADERS; .text : { *(.text) } }" > %t.script3// RUN: echo "SECTIONS { . = SIZEOF_HEADERS; .text : { *(.text) } }" > %t.script
4// FIXME: threads are disable because the test is too slow with them (PR32942).4// RUN: ld.lld -T %t.script %t.o -o %t
5// RUN: ld.lld -T %t.script %t.o -o %t --no-threads
6// RUN: llvm-readobj -t %t | FileCheck %s5// RUN: llvm-readobj -t %t | FileCheck %s
76
8// Test that _start is in the correct section.7// Test that _start is in the correct section.
deps/lld/test/ELF/many-sections.s+2-5
...@@ -11,15 +11,12 @@...@@ -11,15 +11,12 @@
11// CHECK-NEXT: Other: 011// CHECK-NEXT: Other: 0
12// CHECK-NEXT: Section: dm (0xFF00)12// CHECK-NEXT: Section: dm (0xFF00)
1313
1414// RUN: ld.lld %t -o %t2
15// FIXME: threads are disable because the test is too slow with them (PR32942).
16// RUN: ld.lld %t -o %t2 --no-threads
17// RUN: llvm-readobj -t %t2 | FileCheck --check-prefix=LINKED %s15// RUN: llvm-readobj -t %t2 | FileCheck --check-prefix=LINKED %s
1816
19// Test also with a linker script.17// Test also with a linker script.
20// RUN: echo "SECTIONS { . = SIZEOF_HEADERS; .text : { *(.text) } }" > %t.script18// RUN: echo "SECTIONS { . = SIZEOF_HEADERS; .text : { *(.text) } }" > %t.script
21// FIXME: threads are disable because the test is too slow with them (PR32942).19// RUN: ld.lld -T %t.script %t -o %t2
22// RUN: ld.lld -T %t.script %t -o %t2 --no-threads
23// RUN: llvm-readobj -t %t2 | FileCheck --check-prefix=LINKED %s20// RUN: llvm-readobj -t %t2 | FileCheck --check-prefix=LINKED %s
2421
25// Test that _start is in the correct section.22// Test that _start is in the correct section.
deps/lld/test/ELF/map-file.s+60-26
...@@ -4,15 +4,21 @@...@@ -4,15 +4,21 @@
4// RUN: llvm-mc -filetype=obj -triple=x86_64-pc-linux %p/Inputs/map-file2.s -o %t2.o4// RUN: llvm-mc -filetype=obj -triple=x86_64-pc-linux %p/Inputs/map-file2.s -o %t2.o
5// RUN: llvm-mc -filetype=obj -triple=x86_64-pc-linux %p/Inputs/map-file3.s -o %t3.o5// RUN: llvm-mc -filetype=obj -triple=x86_64-pc-linux %p/Inputs/map-file3.s -o %t3.o
6// RUN: llvm-mc -filetype=obj -triple=x86_64-pc-linux %p/Inputs/map-file4.s -o %t4.o6// RUN: llvm-mc -filetype=obj -triple=x86_64-pc-linux %p/Inputs/map-file4.s -o %t4.o
7// RUN: llvm-mc -filetype=obj -triple=x86_64-pc-linux %p/Inputs/map-file5.s -o %t5.o
8// RUN: ld.lld -shared %t5.o -o %t5.so -soname dso
7// RUN: rm -f %t4.a9// RUN: rm -f %t4.a
8// RUN: llvm-ar rc %t4.a %t4.o10// RUN: llvm-ar rc %t4.a %t4.o
9// RUN: ld.lld %t1.o %t2.o %t3.o %t4.a -o %t -M | FileCheck -strict-whitespace %s11// RUN: ld.lld %t1.o %t2.o %t3.o %t4.a %t5.so -o %t -M | FileCheck -strict-whitespace %s
10// RUN: ld.lld %t1.o %t2.o %t3.o %t4.a -o %t -print-map | FileCheck -strict-whitespace %s12// RUN: ld.lld %t1.o %t2.o %t3.o %t4.a %t5.so -o %t -print-map | FileCheck -strict-whitespace %s
11// RUN: ld.lld %t1.o %t2.o %t3.o %t4.a -o %t -Map=%t.map13// RUN: ld.lld %t1.o %t2.o %t3.o %t4.a %t5.so -o %t -Map=%t.map
12// RUN: FileCheck -strict-whitespace %s < %t.map14// RUN: FileCheck -strict-whitespace %s < %t.map
1315
14.global _start16.global _start
15_start:17_start:
18 .quad sharedFoo
19 .quad sharedBar
20 callq sharedFunc1
21 callq sharedFunc2
16 call baz22 call baz
17.global _Z1fi23.global _Z1fi
18_Z1fi:24_Z1fi:
...@@ -25,34 +31,62 @@ bar:...@@ -25,34 +31,62 @@ bar:
25.long zed - .31.long zed - .
26local:32local:
27.comm common,4,1633.comm common,4,16
34.global abs
35abs = 0xAB5
36labs = 0x1AB5
2837
29// CHECK: Address Size Align Out In Symbol38// CHECK: Address Size Align Out In Symbol
30// CHECK-NEXT: 0000000000200158 0000000000000030 8 .eh_frame39// CHECK-NEXT: 00000000002001c8 0000000000000078 8 .dynsym
31// CHECK-NEXT: 0000000000200158 0000000000000030 8 <internal>:(.eh_frame)40// CHECK-NEXT: 00000000002001c8 0000000000000078 8 <internal>:(.dynsym)
32// CHECK-NEXT: 0000000000201000 0000000000000015 4 .text41// CHECK-NEXT: 0000000000200240 000000000000002c 8 .gnu.hash
33// CHECK-NEXT: 0000000000201000 000000000000000e 4 {{.*}}{{/|\\}}map-file.s.tmp1.o:(.text)42// CHECK-NEXT: 0000000000200240 000000000000002c 8 <internal>:(.gnu.hash)
43// CHECK-NEXT: 000000000020026c 0000000000000030 4 .hash
44// CHECK-NEXT: 000000000020026c 0000000000000030 4 <internal>:(.hash)
45// CHECK-NEXT: 000000000020029c 0000000000000031 1 .dynstr
46// CHECK-NEXT: 000000000020029c 0000000000000031 1 <internal>:(.dynstr)
47// CHECK-NEXT: 00000000002002d0 0000000000000030 8 .rela.dyn
48// CHECK-NEXT: 00000000002002d0 0000000000000030 8 <internal>:(.rela.dyn)
49// CHECK-NEXT: 0000000000200300 0000000000000030 8 .rela.plt
50// CHECK-NEXT: 0000000000200300 0000000000000030 8 <internal>:(.rela.plt)
51// CHECK-NEXT: 0000000000200330 0000000000000030 8 .eh_frame
52// CHECK-NEXT: 0000000000200330 0000000000000030 8 <internal>:(.eh_frame)
53// CHECK-NEXT: 0000000000201000 000000000000002d 4 .text
54// CHECK-NEXT: 0000000000201000 0000000000000028 4 {{.*}}{{/|\\}}map-file.s.tmp1.o:(.text)
34// CHECK-NEXT: 0000000000201000 0000000000000000 0 _start55// CHECK-NEXT: 0000000000201000 0000000000000000 0 _start
35// CHECK-NEXT: 0000000000201005 0000000000000000 0 f(int)56// CHECK-NEXT: 000000000020101f 0000000000000000 0 f(int)
36// CHECK-NEXT: 000000000020100e 0000000000000000 0 local57// CHECK-NEXT: 0000000000201028 0000000000000000 0 local
37// CHECK-NEXT: 0000000000201010 0000000000000002 4 {{.*}}{{/|\\}}map-file.s.tmp2.o:(.text)58// CHECK-NEXT: 0000000000201028 0000000000000002 4 {{.*}}{{/|\\}}map-file.s.tmp2.o:(.text)
38// CHECK-NEXT: 0000000000201010 0000000000000000 0 foo59// CHECK-NEXT: 0000000000201028 0000000000000000 0 foo
39// CHECK-NEXT: 0000000000201011 0000000000000000 0 bar60// CHECK-NEXT: 0000000000201029 0000000000000000 0 bar
40// CHECK-NEXT: 0000000000201012 0000000000000000 1 {{.*}}{{/|\\}}map-file.s.tmp2.o:(.text.zed)61// CHECK-NEXT: 000000000020102a 0000000000000000 1 {{.*}}{{/|\\}}map-file.s.tmp2.o:(.text.zed)
41// CHECK-NEXT: 0000000000201012 0000000000000000 0 zed62// CHECK-NEXT: 000000000020102a 0000000000000000 0 zed
42// CHECK-NEXT: 0000000000201014 0000000000000000 4 {{.*}}{{/|\\}}map-file.s.tmp3.o:(.text)63// CHECK-NEXT: 000000000020102c 0000000000000000 4 {{.*}}{{/|\\}}map-file.s.tmp3.o:(.text)
43// CHECK-NEXT: 0000000000201014 0000000000000000 0 bah64// CHECK-NEXT: 000000000020102c 0000000000000000 0 bah
44// CHECK-NEXT: 0000000000201014 0000000000000001 4 {{.*}}{{/|\\}}map-file.s.tmp4.a(map-file.s.tmp4.o):(.text)65// CHECK-NEXT: 000000000020102c 0000000000000001 4 {{.*}}{{/|\\}}map-file.s.tmp4.a(map-file.s.tmp4.o):(.text)
45// CHECK-NEXT: 0000000000201014 0000000000000000 0 baz66// CHECK-NEXT: 000000000020102c 0000000000000000 0 baz
46// CHECK-NEXT: 0000000000202000 0000000000000004 16 .bss67// CHECK-NEXT: 0000000000201030 0000000000000030 16 .plt
47// CHECK-NEXT: 0000000000202000 0000000000000004 16 <internal>:(COMMON)68// CHECK-NEXT: 0000000000201030 0000000000000030 16 <internal>:(.plt)
69// CHECK-NEXT: 0000000000201040 0000000000000000 0 sharedFunc1
70// CHECK-NEXT: 0000000000201050 0000000000000000 0 sharedFunc2
71// CHECK-NEXT: 0000000000202000 0000000000000028 8 .got.plt
72// CHECK-NEXT: 0000000000202000 0000000000000028 8 <internal>:(.got.plt)
73// CHECK-NEXT: 0000000000203000 0000000000000100 8 .dynamic
74// CHECK-NEXT: 0000000000203000 0000000000000100 8 <internal>:(.dynamic)
75// CHECK-NEXT: 0000000000204000 0000000000000010 16 .bss
76// CHECK-NEXT: 0000000000204000 0000000000000004 16 {{.*}}{{/|\\}}map-file.s.tmp1.o:(COMMON)
77// CHECK-NEXT: 0000000000204000 0000000000000004 0 common
78// CHECK-NEXT: 0000000000204004 0000000000000004 1 <internal>:(.bss)
79// CHECK-NEXT: 0000000000204004 0000000000000004 0 sharedFoo
80// CHECK-NEXT: 0000000000204008 0000000000000008 1 <internal>:(.bss)
81// CHECK-NEXT: 0000000000204008 0000000000000008 0 sharedBar
48// CHECK-NEXT: 0000000000000000 0000000000000008 1 .comment82// CHECK-NEXT: 0000000000000000 0000000000000008 1 .comment
49// CHECK-NEXT: 0000000000000000 0000000000000008 1 <internal>:(.comment)83// CHECK-NEXT: 0000000000000000 0000000000000008 1 <internal>:(.comment)
50// CHECK-NEXT: 0000000000000000 00000000000000f0 8 .symtab84// CHECK-NEXT: 0000000000000000 0000000000000198 8 .symtab
51// CHECK-NEXT: 0000000000000000 00000000000000f0 8 <internal>:(.symtab)85// CHECK-NEXT: 0000000000000000 0000000000000198 8 <internal>:(.symtab)
52// CHECK-NEXT: 0000000000000000 0000000000000039 1 .shstrtab86// CHECK-NEXT: 0000000000000000 0000000000000084 1 .shstrtab
53// CHECK-NEXT: 0000000000000000 0000000000000039 1 <internal>:(.shstrtab)87// CHECK-NEXT: 0000000000000000 0000000000000084 1 <internal>:(.shstrtab)
54// CHECK-NEXT: 0000000000000000 000000000000002f 1 .strtab88// CHECK-NEXT: 0000000000000000 000000000000006d 1 .strtab
55// CHECK-NEXT: 0000000000000000 000000000000002f 1 <internal>:(.strtab)89// CHECK-NEXT: 0000000000000000 000000000000006d 1 <internal>:(.strtab)
5690
57// RUN: not ld.lld %t1.o %t2.o %t3.o %t4.a -o %t -Map=/ 2>&1 \91// RUN: not ld.lld %t1.o %t2.o %t3.o %t4.a -o %t -Map=/ 2>&1 \
58// RUN: | FileCheck -check-prefix=FAIL %s92// RUN: | FileCheck -check-prefix=FAIL %s
deps/lld/test/ELF/merge-align.s created+34
...@@ -0,0 +1,34 @@
1// REQUIRES: x86
2// RUN: llvm-mc -filetype=obj -triple=x86_64-pc-linux %s -o %t.o
3// RUN: ld.lld %t.o -o %t.so -shared
4// RUN: llvm-readobj -s -section-data %t.so | FileCheck %s
5
6 .section .rodata.foo,"aM",@progbits,1
7 .align 16
8 .byte 0x42
9
10 .section .rodata.bar,"aM",@progbits,1
11 .align 16
12 .byte 0x42
13
14 .section .rodata.zed,"aM",@progbits,1
15 .align 16
16 .byte 0x41
17
18// CHECK: Name: .rodata (
19// CHECK-NEXT: Type: SHT_PROGBITS
20// CHECK-NEXT: Flags [
21// CHECK-NEXT: SHF_ALLOC
22// CHECK-NEXT: SHF_MERGE
23// CHECK-NEXT: ]
24// CHECK-NEXT: Address:
25// CHECK-NEXT: Offset:
26// CHECK-NEXT: Size: 17
27// CHECK-NEXT: Link: 0
28// CHECK-NEXT: Info: 0
29// CHECK-NEXT: AddressAlignment: 16
30// CHECK-NEXT: EntrySize: 1
31// CHECK-NEXT: SectionData (
32// CHECK-NEXT: 0000: 42000000 00000000 00000000 00000000 |
33// CHECK-NEXT: 0010: 41 |
34// CHECK-NEXT: )
deps/lld/test/ELF/merge-entsize.s created+27
...@@ -0,0 +1,27 @@
1// REQUIRES: x86
2// RUN: llvm-mc -filetype=obj -triple=x86_64-pc-linux %s -o %t.o
3// RUN: ld.lld %t.o -o %t
4// RUN: llvm-readobj -s %t | FileCheck %s
5
6 .section .rodata.1,"aM",@progbits,1
7 .byte 0x42
8
9 .section .rodata.2,"aM",@progbits,2
10 .short 0x42
11
12// Since the output section has both .rodata.1 and .rodata.2, it
13// contains elements of different sizes and we use an entsize of 0.
14
15// CHECK: Name: .rodata (
16// CHECK-NEXT: Type: SHT_PROGBITS
17// CHECK-NEXT: Flags [
18// CHECK-NEXT: SHF_ALLOC
19// CHECK-NEXT: SHF_MERGE
20// CHECK-NEXT: ]
21// CHECK-NEXT: Address:
22// CHECK-NEXT: Offset:
23// CHECK-NEXT: Size:
24// CHECK-NEXT: Link:
25// CHECK-NEXT: Info:
26// CHECK-NEXT: AddressAlignment:
27// CHECK-NEXT: EntrySize: 0
deps/lld/test/ELF/merge-reloc.s+9-10
...@@ -3,14 +3,13 @@...@@ -3,14 +3,13 @@
3# RUN: ld.lld %t.o -r -o %t-rel3# RUN: ld.lld %t.o -r -o %t-rel
4# RUN: llvm-readobj -s -section-data %t-rel | FileCheck %s4# RUN: llvm-readobj -s -section-data %t-rel | FileCheck %s
55
6# When linker generates a relocatable object it should keep "merge"6# When linker generates a relocatable object it does string merging in the same
7# sections as-is: do not merge content, do not join regular and7# way as for regular link. It should keep SHF_MERGE flag and set proper sh_entsize
8# "merge" sections, do not joint "merge" sections with different8# value so that final link can perform the final merging optimization.
9# entry size.
109
11# CHECK: Section {10# CHECK: Section {
12# CHECK: Index:11# CHECK: Index:
13# CHECK: Name: .rodata12# CHECK: Name: .rodata.1 (
14# CHECK-NEXT: Type: SHT_PROGBITS13# CHECK-NEXT: Type: SHT_PROGBITS
15# CHECK-NEXT: Flags [14# CHECK-NEXT: Flags [
16# CHECK-NEXT: SHF_ALLOC15# CHECK-NEXT: SHF_ALLOC
...@@ -18,18 +17,18 @@...@@ -18,18 +17,18 @@
18# CHECK-NEXT: ]17# CHECK-NEXT: ]
19# CHECK-NEXT: Address:18# CHECK-NEXT: Address:
20# CHECK-NEXT: Offset:19# CHECK-NEXT: Offset:
21# CHECK-NEXT: Size: 1220# CHECK-NEXT: Size: 4
22# CHECK-NEXT: Link: 021# CHECK-NEXT: Link: 0
23# CHECK-NEXT: Info: 022# CHECK-NEXT: Info: 0
24# CHECK-NEXT: AddressAlignment: 423# CHECK-NEXT: AddressAlignment: 4
25# CHECK-NEXT: EntrySize: 424# CHECK-NEXT: EntrySize: 4
26# CHECK-NEXT: SectionData (25# CHECK-NEXT: SectionData (
27# CHECK-NEXT: 0000: 42000000 42000000 4200000026# CHECK-NEXT: 0000: 42000000
28# CHECK-NEXT: )27# CHECK-NEXT: )
29# CHECK-NEXT: }28# CHECK-NEXT: }
30# CHECK: Section {29# CHECK: Section {
31# CHECK: Index:30# CHECK: Index:
32# CHECK: Name: .rodata31# CHECK: Name: .rodata.2 (
33# CHECK-NEXT: Type: SHT_PROGBITS32# CHECK-NEXT: Type: SHT_PROGBITS
34# CHECK-NEXT: Flags [33# CHECK-NEXT: Flags [
35# CHECK-NEXT: SHF_ALLOC34# CHECK-NEXT: SHF_ALLOC
...@@ -37,13 +36,13 @@...@@ -37,13 +36,13 @@
37# CHECK-NEXT: ]36# CHECK-NEXT: ]
38# CHECK-NEXT: Address:37# CHECK-NEXT: Address:
39# CHECK-NEXT: Offset:38# CHECK-NEXT: Offset:
40# CHECK-NEXT: Size: 1639# CHECK-NEXT: Size: 8
41# CHECK-NEXT: Link: 040# CHECK-NEXT: Link: 0
42# CHECK-NEXT: Info: 041# CHECK-NEXT: Info: 0
43# CHECK-NEXT: AddressAlignment: 842# CHECK-NEXT: AddressAlignment: 8
44# CHECK-NEXT: EntrySize: 843# CHECK-NEXT: EntrySize: 8
45# CHECK-NEXT: SectionData (44# CHECK-NEXT: SectionData (
46# CHECK-NEXT: 0000: 42000000 42000000 42000000 4200000045# CHECK-NEXT: 0000: 42000000 42000000
47# CHECK-NEXT: )46# CHECK-NEXT: )
48# CHECK-NEXT: }47# CHECK-NEXT: }
49# CHECK: Section {48# CHECK: Section {
deps/lld/test/ELF/merge-string.s+7-7
...@@ -1,10 +1,10 @@...@@ -1,10 +1,10 @@
1// REQUIRES: x861// REQUIRES: x86
2// RUN: llvm-mc -filetype=obj -triple=x86_64-pc-linux %s -o %t.o2// RUN: llvm-mc -filetype=obj -triple=x86_64-pc-linux %s -o %t.o
3// RUN: ld.lld -O2 %t.o -o %t.so -shared3// RUN: ld.lld -O 2 %t.o -o %t.so -shared
4// RUN: llvm-readobj -s -section-data -t %t.so | FileCheck %s4// RUN: llvm-readobj -s -section-data -t %t.so | FileCheck %s
5// RUN: ld.lld -O1 %t.o -o %t.so -shared5// RUN: ld.lld -O 1 %t.o -o %t.so -shared
6// RUN: llvm-readobj -s -section-data -t %t.so | FileCheck --check-prefix=NOTAIL %s6// RUN: llvm-readobj -s -section-data -t %t.so | FileCheck --check-prefix=NOTAIL %s
7// RUN: ld.lld -O0 %t.o -o %t.so -shared7// RUN: ld.lld -O 0 %t.o -o %t.so -shared
8// RUN: llvm-readobj -s -section-data -t %t.so | FileCheck --check-prefix=NOMERGE %s8// RUN: llvm-readobj -s -section-data -t %t.so | FileCheck --check-prefix=NOMERGE %s
99
10 .section .rodata1,"aMS",@progbits,110 .section .rodata1,"aMS",@progbits,1
...@@ -34,7 +34,7 @@ zed:...@@ -34,7 +34,7 @@ zed:
34// CHECK-NEXT: Link: 034// CHECK-NEXT: Link: 0
35// CHECK-NEXT: Info: 035// CHECK-NEXT: Info: 0
36// CHECK-NEXT: AddressAlignment: 136// CHECK-NEXT: AddressAlignment: 1
37// CHECK-NEXT: EntrySize: 037// CHECK-NEXT: EntrySize: 1
38// CHECK-NEXT: SectionData (38// CHECK-NEXT: SectionData (
39// CHECK-NEXT: 0000: 61626300 |abc.|39// CHECK-NEXT: 0000: 61626300 |abc.|
40// CHECK-NEXT: )40// CHECK-NEXT: )
...@@ -52,9 +52,9 @@ zed:...@@ -52,9 +52,9 @@ zed:
52// NOTAIL-NEXT: Link: 052// NOTAIL-NEXT: Link: 0
53// NOTAIL-NEXT: Info: 053// NOTAIL-NEXT: Info: 0
54// NOTAIL-NEXT: AddressAlignment: 154// NOTAIL-NEXT: AddressAlignment: 1
55// NOTAIL-NEXT: EntrySize: 055// NOTAIL-NEXT: EntrySize: 1
56// NOTAIL-NEXT: SectionData (56// NOTAIL-NEXT: SectionData (
57// NOTAIL-NEXT: 0000: 61626300 626300 |abc.bc.|57// NOTAIL-NEXT: 0000: 62630061 626300 |bc.abc.|
58// NOTAIL-NEXT: )58// NOTAIL-NEXT: )
5959
60// NOMERGE: Name: .rodata160// NOMERGE: Name: .rodata1
...@@ -88,7 +88,7 @@ zed:...@@ -88,7 +88,7 @@ zed:
88// CHECK-NEXT: Link: 088// CHECK-NEXT: Link: 0
89// CHECK-NEXT: Info: 089// CHECK-NEXT: Info: 0
90// CHECK-NEXT: AddressAlignment: 290// CHECK-NEXT: AddressAlignment: 2
91// CHECK-NEXT: EntrySize: 091// CHECK-NEXT: EntrySize: 2
92// CHECK-NEXT: SectionData (92// CHECK-NEXT: SectionData (
93// CHECK-NEXT: 0000: 14000000 |....|93// CHECK-NEXT: 0000: 14000000 |....|
94// CHECK-NEXT: )94// CHECK-NEXT: )
deps/lld/test/ELF/merge.s+1-1
...@@ -29,7 +29,7 @@ zed:...@@ -29,7 +29,7 @@ zed:
29// CHECK-NEXT: Link: 029// CHECK-NEXT: Link: 0
30// CHECK-NEXT: Info: 030// CHECK-NEXT: Info: 0
31// CHECK-NEXT: AddressAlignment: 431// CHECK-NEXT: AddressAlignment: 4
32// CHECK-NEXT: EntrySize: 032// CHECK-NEXT: EntrySize: 4
33// CHECK-NEXT: SectionData (33// CHECK-NEXT: SectionData (
34// CHECK-NEXT: 0000: 10000000 4200000034// CHECK-NEXT: 0000: 10000000 42000000
35// CHECK-NEXT: )35// CHECK-NEXT: )
deps/lld/test/ELF/mips-26-n32-n64.s created+35
...@@ -0,0 +1,35 @@
1# Check R_MIPS_26 relocation handling in case of N64 ABIs.
2
3# RUN: llvm-mc -filetype=obj -triple=mips64-unknown-linux \
4# RUN: %S/Inputs/mips-dynamic.s -o %t-so.o
5# RUN: ld.lld %t-so.o -shared -o %t.so
6# RUN: llvm-mc -filetype=obj -triple=mips64-unknown-linux %s -o %t.o
7# RUN: ld.lld %t.o %t.so -o %t.exe
8# RUN: llvm-objdump -d %t.exe | FileCheck %s
9
10# REQUIRES: mips
11
12# CHECK: Disassembly of section .text:
13# CHECK-NEXT: __start:
14# CHECK-NEXT: 20000: 0c 00 80 0c jal 131120
15# CHECK-NEXT: 20004: 00 00 00 00 nop
16# CHECK-NEXT: Disassembly of section .plt:
17# CHECK-NEXT: .plt:
18# CHECK-NEXT: 20010: 3c 0e 00 03 lui $14, 3
19# CHECK-NEXT: 20014: dd d9 00 08 ld $25, 8($14)
20# CHECK-NEXT: 20018: 25 ce 00 08 addiu $14, $14, 8
21# CHECK-NEXT: 2001c: 03 0e c0 23 subu $24, $24, $14
22# CHECK-NEXT: 20020: 03 e0 78 25 move $15, $ra
23# CHECK-NEXT: 20024: 00 18 c0 c2 srl $24, $24, 3
24# CHECK-NEXT: 20028: 03 20 f8 09 jalr $25
25# CHECK-NEXT: 2002c: 27 18 ff fe addiu $24, $24, -2
26# CHECK-NEXT: 20030: 3c 0f 00 03 lui $15, 3
27# CHECK-NEXT: 20034: 8d f9 00 18 lw $25, 24($15)
28# CHECK-NEXT: 20038: 03 20 00 08 jr $25
29# CHECK-NEXT: 2003c: 25 f8 00 18 addiu $24, $15, 24
30
31 .text
32 .option pic0
33 .global __start
34__start:
35 jal foo0
deps/lld/test/ELF/mips-64-gprel-so.s+1-1
...@@ -12,7 +12,7 @@...@@ -12,7 +12,7 @@
12# CHECK-NEXT: 10004: 03 99 e0 2d daddu $gp, $gp, $2512# CHECK-NEXT: 10004: 03 99 e0 2d daddu $gp, $gp, $25
13# CHECK-NEXT: 10008: 67 9c 7f f0 daddiu $gp, $gp, 3275213# CHECK-NEXT: 10008: 67 9c 7f f0 daddiu $gp, $gp, 32752
1414
15# CHECK: 0000000000027ff0 *ABS* 00000000 .hidden _gp15# CHECK: 0000000000027ff0 .got 00000000 .hidden _gp
16# CHECK: 0000000000010000 .text 00000000 foo16# CHECK: 0000000000010000 .text 00000000 foo
1717
18 .text18 .text
deps/lld/test/ELF/mips-64-rels.s+3-3
...@@ -20,11 +20,11 @@...@@ -20,11 +20,11 @@
20# ^-- %lo(0x17ff0)20# ^-- %lo(0x17ff0)
2121
22# CHECK: Contents of section .rodata:22# CHECK: Contents of section .rodata:
23# CHECK-NEXT: 10158 ffffffff fffe801423# CHECK-NEXT: {{[0-9a-f]+}} ffffffff fffe8014
24# ^-- 0x20004 - 0x37ff0 = 0xfffffffffffe801424# ^-- 0x20004 - 0x37ff0 = 0xfffffffffffe8014
2525
26# CHECK: 0000000000020004 .text 00000000 loc26# CHECK: 0000000000020004 .text 00000000 loc
27# CHECK: 0000000000037ff0 *ABS* 00000000 .hidden _gp27# CHECK: 0000000000037ff0 .got 00000000 .hidden _gp
28# CHECK: 0000000000020000 .text 00000000 __start28# CHECK: 0000000000020000 .text 00000000 __start
2929
30# REL: Relocations [30# REL: Relocations [
deps/lld/test/ELF/mips-align-err.s+1-1
...@@ -4,7 +4,7 @@...@@ -4,7 +4,7 @@
4# RUN: llvm-mc -filetype=obj -triple=mips-unknown-linux \4# RUN: llvm-mc -filetype=obj -triple=mips-unknown-linux \
5# RUN: -mcpu=mips32r6 %S/Inputs/mips-align-err.s -o %t2.o5# RUN: -mcpu=mips32r6 %S/Inputs/mips-align-err.s -o %t2.o
6# RUN: not ld.lld %t.o %t2.o -o %t.exe 2>&1 | FileCheck %s6# RUN: not ld.lld %t.o %t2.o -o %t.exe 2>&1 | FileCheck %s
7# CHECK: {{.*}}:(.text+0x1): improper alignment for relocation R_MIPS_PC167# CHECK: {{.*}}:(.text+0x1): improper alignment for relocation R_MIPS_PC16: 0xB is not aligned to 4 bytes
88
9 .globl __start9 .globl __start
10__start:10__start:
deps/lld/test/ELF/mips-elf-flags-err.s+8-2
...@@ -71,8 +71,14 @@ __start:...@@ -71,8 +71,14 @@ __start:
71# R1R2-NEXT: EF_MIPS_CPIC71# R1R2-NEXT: EF_MIPS_CPIC
72# R1R2-NEXT: ]72# R1R2-NEXT: ]
7373
74# R3R32: target ISA 'mips3' is incompatible with 'mips32': {{.*}}mips-elf-flags-err.s.tmp2.o74# R3R32: error: incompatible target ISA:
75# R6OCTEON: target ISA 'mips64r6' is incompatible with 'octeon': {{.*}}mips-elf-flags-err.s.tmp2.o75# R3R32-NEXT: >>> {{.+}}mips-elf-flags-err.s.tmp1.o: mips3
76# R3R32-NEXT: >>> {{.+}}mips-elf-flags-err.s.tmp2.o: mips32
77
78# R6OCTEON: error: incompatible target ISA:
79# R6OCTEON-NEXT: >>> {{.+}}mips-elf-flags-err.s.tmp1.o: mips64r6
80# R6OCTEON-NEXT: >>> {{.+}}mips-elf-flags-err.s.tmp2.o: mips64r2 (octeon)
81
76# FPABI: target floating point ABI '-mdouble-float' is incompatible with '-mgp32 -mfp64': {{.*}}mips-elf-flags-err.s.tmp2.o82# FPABI: target floating point ABI '-mdouble-float' is incompatible with '-mgp32 -mfp64': {{.*}}mips-elf-flags-err.s.tmp2.o
7783
78# OCTEON: Flags [84# OCTEON: Flags [
deps/lld/test/ELF/mips-elf-flags.s+29
...@@ -35,6 +35,12 @@...@@ -35,6 +35,12 @@
35# RUN: llvm-readobj -h -mips-abi-flags %t.exe \35# RUN: llvm-readobj -h -mips-abi-flags %t.exe \
36# RUN: | FileCheck -check-prefix=OCTEON %s36# RUN: | FileCheck -check-prefix=OCTEON %s
3737
38# RUN: llvm-mc -filetype=obj -triple=mips-unknown-linux %s -o %t.o
39# RUN: llvm-mc -filetype=obj -triple=mips-unknown-linux \
40# RUN: -mattr=micromips %S/Inputs/mips-fpic.s -o %t-mm.o
41# RUN: ld.lld %t.o %t-mm.o -o %t.exe
42# RUN: llvm-readobj -h -mips-abi-flags %t.exe | FileCheck -check-prefix=MICRO %s
43
38# REQUIRES: mips44# REQUIRES: mips
3945
40 .text46 .text
...@@ -170,3 +176,26 @@ __start:...@@ -170,3 +176,26 @@ __start:
170# OCTEON-NEXT: ]176# OCTEON-NEXT: ]
171# OCTEON-NEXT: Flags 2: 0x0177# OCTEON-NEXT: Flags 2: 0x0
172# OCTEON-NEXT: }178# OCTEON-NEXT: }
179
180# MICRO: Flags [
181# MICRO-NEXT: EF_MIPS_ABI_O32
182# MICRO-NEXT: EF_MIPS_ARCH_32
183# MICRO-NEXT: EF_MIPS_CPIC
184# MICRO-NEXT: EF_MIPS_MICROMIPS
185# MICRO-NEXT: ]
186# MICRO: MIPS ABI Flags {
187# MICRO-NEXT: Version: 0
188# MICRO-NEXT: ISA: MIPS32
189# MICRO-NEXT: ISA Extension: None
190# MICRO-NEXT: ASEs [
191# MICRO-NEXT: microMIPS
192# MICRO-NEXT: ]
193# MICRO-NEXT: FP ABI: Hard float (double precision)
194# MICRO-NEXT: GPR size: 32
195# MICRO-NEXT: CPR1 size: 32
196# MICRO-NEXT: CPR2 size: 0
197# MICRO-NEXT: Flags 1 [
198# MICRO-NEXT: ODDSPREG
199# MICRO-NEXT: ]
200# MICRO-NEXT: Flags 2: 0x0
201# MICRO-NEXT: }
deps/lld/test/ELF/mips-got-page-script.s created+65
...@@ -0,0 +1,65 @@
1# Check calculation of MIPS GOT page address entries number
2# when a linker script is provided.
3
4# RUN: llvm-mc -filetype=obj -triple=mips64-unknown-linux -o %t.o %s
5# RUN: echo "SECTIONS { \
6# RUN: .text : { *(.text) } \
7# RUN: .data 0x10000 : { *(.data) } }" > %t.script
8# RUN: ld.lld -shared --script %t.script -o %t.so %t.o
9# RUN: llvm-readobj -t -mips-plt-got %t.so | FileCheck %s
10
11# REQUIRES: mips
12
13# CHECK: Name: foo1
14# CHECK-NEXT: Value: 0x10000
15# CHECK: Name: foo2
16# CHECK-NEXT: Value: 0x20000
17# CHECK: Name: foo3
18# CHECK-NEXT: Value: 0x30000
19# CHECK: Name: foo4
20# CHECK-NEXT: Value: 0x40000
21
22# CHECK: Local entries [
23# CHECK-BEXT: Entry {
24# CHECK-BEXT: Address:
25# CHECK-BEXT: Access:
26# CHECK-BEXT: Initial: 0x10000
27# CHECK-BEXT: }
28# CHECK-BEXT: Entry {
29# CHECK-BEXT: Address:
30# CHECK-BEXT: Access:
31# CHECK-BEXT: Initial: 0x20000
32# CHECK-BEXT: }
33# CHECK-BEXT: Entry {
34# CHECK-BEXT: Address:
35# CHECK-BEXT: Access:
36# CHECK-BEXT: Initial: 0x30000
37# CHECK-BEXT: }
38# CHECK-BEXT: Entry {
39# CHECK-BEXT: Address:
40# CHECK-BEXT: Access:
41# CHECK-BEXT: Initial: 0x40000
42# CHECK-BEXT: }
43# CHECK-BEXT: Entry {
44# CHECK-BEXT: Address:
45# CHECK-BEXT: Access:
46# CHECK-BEXT: Initial: 0x50000
47# CHECK-BEXT: }
48# CHECK-BEXT: ]
49
50 .option pic2
51 .text
52 ld $v0,%got_page(foo1)($gp)
53 ld $v0,%got_page(foo2)($gp)
54 ld $v0,%got_page(foo3)($gp)
55 ld $v0,%got_page(foo4)($gp)
56
57 .data
58foo1:
59 .space 0x10000
60foo2:
61 .space 0x10000
62foo3:
63 .space 0x10000
64foo4:
65 .word 0
deps/lld/test/ELF/mips-got-relocs.s+2-2
...@@ -47,7 +47,7 @@ v1:...@@ -47,7 +47,7 @@ v1:
47# EXE_SYM: Sections:47# EXE_SYM: Sections:
48# EXE_SYM: .got 0000000c 0000000000030010 DATA48# EXE_SYM: .got 0000000c 0000000000030010 DATA
49# EXE_SYM: SYMBOL TABLE:49# EXE_SYM: SYMBOL TABLE:
50# EXE_SYM: 00038000 *ABS* 00000000 .hidden _gp50# EXE_SYM: 00038000 .got 00000000 .hidden _gp
51# ^-- .got + GP offset (0x7ff0)51# ^-- .got + GP offset (0x7ff0)
52# EXE_SYM: 00030000 g .data 00000004 v152# EXE_SYM: 00030000 g .data 00000004 v1
5353
...@@ -71,7 +71,7 @@ v1:...@@ -71,7 +71,7 @@ v1:
71# DSO_SYM: Sections:71# DSO_SYM: Sections:
72# DSO_SYM: .got 0000000c 0000000000020010 DATA72# DSO_SYM: .got 0000000c 0000000000020010 DATA
73# DSO_SYM: SYMBOL TABLE:73# DSO_SYM: SYMBOL TABLE:
74# DSO_SYM: 00028000 *ABS* 00000000 .hidden _gp74# DSO_SYM: 00028000 .got 00000000 .hidden _gp
75# ^-- .got + GP offset (0x7ff0)75# ^-- .got + GP offset (0x7ff0)
76# DSO_SYM: 00020000 g .data 00000004 v176# DSO_SYM: 00020000 g .data 00000004 v1
7777
deps/lld/test/ELF/mips-got-script.s created+47
...@@ -0,0 +1,47 @@
1# Check number of got entries is adjusted for linker script-added space.
2
3# RUN: llvm-mc -filetype=obj -triple=mips-unknown-linux %s -o %t.o
4# RUN: echo "SECTIONS { .data : { *(.data.1); . += 0x10000; *(.data.2) } }" > %t.script
5# RUN: ld.lld %t.o -shared -o %t.so -T %t.script
6# RUN: llvm-readobj -mips-plt-got -dynamic-table %t.so | FileCheck %s
7
8# REQUIRES: mips
9
10# CHECK: 0x7000000A MIPS_LOCAL_GOTNO 5
11# ^-- 2 * header + 3 local entries
12# CHECK: Local entries [
13# CHECK-NEXT: Entry {
14# CHECK-NEXT: Address:
15# CHECK-NEXT: Access: -32744
16# CHECK-NEXT: Initial: 0x0
17# ^-- loc1
18# CHECK-NEXT: }
19# CHECK-NEXT: Entry {
20# CHECK-NEXT: Address:
21# CHECK-NEXT: Access: -32740
22# CHECK-NEXT: Initial: 0x10000
23# ^-- loc2
24# CHECK-NEXT: }
25# CHECK-NEXT: Entry {
26# CHECK-NEXT: Address:
27# CHECK-NEXT: Access: -32736
28# CHECK-NEXT: Initial: 0x20000
29# ^-- redundant
30# CHECK-NEXT: }
31# CHECK-NEXT: ]
32
33 .text
34 .globl foo
35foo:
36 lw $t0, %got(loc1)($gp)
37 addi $t0, $t0, %lo(loc1)
38 lw $t0, %got(loc2)($gp)
39 addi $t0, $t0, %lo(loc2)
40
41 .section .data.1,"aw",%progbits
42loc1:
43 .word 0
44
45 .section .data.2,"aw",%progbits
46loc2:
47 .word 0
deps/lld/test/ELF/mips-gp-disp.s+1-1
...@@ -24,7 +24,7 @@...@@ -24,7 +24,7 @@
24# DIS-NEXT: 10000: 3c 08 00 01 lui $8, 124# DIS-NEXT: 10000: 3c 08 00 01 lui $8, 1
25# DIS-NEXT: 10004: 21 08 7f f0 addi $8, $8, 3275225# DIS-NEXT: 10004: 21 08 7f f0 addi $8, $8, 32752
26# ^-- 0x37ff0 & 0xffff26# ^-- 0x37ff0 & 0xffff
27# DIS: 00027ff0 *ABS* 00000000 .hidden _gp27# DIS: 00027ff0 .got 00000000 .hidden _gp
2828
29# REL: Relocations [29# REL: Relocations [
30# REL-NEXT: ]30# REL-NEXT: ]
deps/lld/test/ELF/mips-gp-ext.s+7
...@@ -10,6 +10,13 @@...@@ -10,6 +10,13 @@
10# RUN: ld.lld -shared -o %t.rel.so --script %t.rel.script %t.o10# RUN: ld.lld -shared -o %t.rel.so --script %t.rel.script %t.o
11# RUN: llvm-objdump -s -t %t.rel.so | FileCheck --check-prefix=REL %s11# RUN: llvm-objdump -s -t %t.rel.so | FileCheck --check-prefix=REL %s
1212
13# RUN: echo "SECTIONS { \
14# RUN: .text : { *(.text) } \
15# RUN: _gp = 0x100 + ABSOLUTE(.); \
16# RUN: .got : { *(.got) } }" > %t.rel.script
17# RUN: ld.lld -shared -o %t.rel.so --script %t.rel.script %t.o
18# RUN: llvm-objdump -s -t %t.rel.so | FileCheck --check-prefix=REL %s
19
13# RUN: echo "SECTIONS { \20# RUN: echo "SECTIONS { \
14# RUN: .text : { *(.text) } \21# RUN: .text : { *(.text) } \
15# RUN: _gp = 0x200; \22# RUN: _gp = 0x200; \
deps/lld/test/ELF/mips-gp-local.s+1-1
...@@ -11,7 +11,7 @@...@@ -11,7 +11,7 @@
11# CHECK-NEXT: 20000: 3c 08 00 03 lui $8, 311# CHECK-NEXT: 20000: 3c 08 00 03 lui $8, 3
12# CHECK-NEXT: 20004: 21 08 7f f0 addi $8, $8, 3275212# CHECK-NEXT: 20004: 21 08 7f f0 addi $8, $8, 32752
1313
14# CHECK: 00037ff0 *ABS* 00000000 .hidden _gp14# CHECK: 00037ff0 .got 00000000 .hidden _gp
1515
16 .text16 .text
17 .globl __start17 .globl __start
deps/lld/test/ELF/mips-gprel32-relocs-gp0.s+4-4
...@@ -22,14 +22,14 @@...@@ -22,14 +22,14 @@
22# DSO: GP: 0x27FF022# DSO: GP: 0x27FF0
2323
24# DUMP: Contents of section .rodata:24# DUMP: Contents of section .rodata:
25# DUMP: 00f4 ffff0004 ffff000825# DUMP: {{[0-9a-f]+}} ffff0004 ffff0008
26# ^ 0x10004 + 0x7ff0 - 0x27ff026# ^ 0x10004 + 0x7ff0 - 0x27ff0
27# ^ 0x10008 + 0x7ff0 - 0x27ff027# ^ 0x10008 + 0x7ff0 - 0x27ff0
2828
29# DUMP: SYMBOL TABLE:29# DUMP: SYMBOL TABLE:
30# DUMP: 00010008 .text 00000000 bar30# DUMP: 00010008 .text 00000000 bar
31# DUMP: 00010004 .text 00000000 foo31# DUMP: 00010004 .text 00000000 foo
32# DUMP: 00027ff0 *ABS* 00000000 .hidden _gp32# DUMP: 00027ff0 .got 00000000 .hidden _gp
3333
34# ERR: error: {{.*}}mips-gp0-non-zero.o: unsupported non-zero ri_gp_value34# ERR: error: {{.*}}mips-gp0-non-zero.o: unsupported non-zero ri_gp_value
3535
deps/lld/test/ELF/mips-gprel32-relocs.s+4-4
...@@ -21,11 +21,11 @@ v1:...@@ -21,11 +21,11 @@ v1:
21 .gpword bar21 .gpword bar
2222
23# CHECK: Contents of section .rodata:23# CHECK: Contents of section .rodata:
24# CHECK: 00f4 fffe8014 fffe801824# CHECK: {{[0-9a-f]+}} fffe8014 fffe8018
25# ^ 0x10004 - 0x27ff025# ^ 0x10004 - 0x27ff0
26# ^ 0x10008 - 0x27ff026# ^ 0x10008 - 0x27ff0
2727
28# CHECK: SYMBOL TABLE:28# CHECK: SYMBOL TABLE:
29# CHECK: 00010008 .text 00000000 bar29# CHECK: 00010008 .text 00000000 bar
30# CHECK: 00010004 .text 00000000 foo30# CHECK: 00010004 .text 00000000 foo
31# CHECK: 00027ff0 *ABS* 00000000 .hidden _gp31# CHECK: 00027ff0 .got 00000000 .hidden _gp
deps/lld/test/ELF/mips-hilo-gp-disp.s+2-2
...@@ -34,7 +34,7 @@ bar:...@@ -34,7 +34,7 @@ bar:
3434
35# EXE: SYMBOL TABLE:35# EXE: SYMBOL TABLE:
36# EXE: 0002000c .text 00000000 bar36# EXE: 0002000c .text 00000000 bar
37# EXE: 00038000 *ABS* 00000000 .hidden _gp37# EXE: 00038000 .got 00000000 .hidden _gp
38# EXE: 00020000 .text 00000000 __start38# EXE: 00020000 .text 00000000 __start
3939
40# SO: Disassembly of section .text:40# SO: Disassembly of section .text:
...@@ -51,5 +51,5 @@ bar:...@@ -51,5 +51,5 @@ bar:
5151
52# SO: SYMBOL TABLE:52# SO: SYMBOL TABLE:
53# SO: 0001000c .text 00000000 bar53# SO: 0001000c .text 00000000 bar
54# SO: 00028000 *ABS* 00000000 .hidden _gp54# SO: 00028000 .got 00000000 .hidden _gp
55# SO: 00010000 .text 00000000 __start55# SO: 00010000 .text 00000000 __start
deps/lld/test/ELF/mips-hilo-hi-only.s+1-1
...@@ -18,7 +18,7 @@ _label:...@@ -18,7 +18,7 @@ _label:
1818
19# CHECK: Disassembly of section .text:19# CHECK: Disassembly of section .text:
20# CHECK-NEXT: __start:20# CHECK-NEXT: __start:
21# CHECK-NEXT: 20000: 3c 08 00 02 lui $8, 221# CHECK-NEXT: 20000: 3c 08 00 03 lui $8, 3
22# ^-- %hi(__start) w/o addend22# ^-- %hi(__start) w/o addend
23# CHECK-NEXT 20004: 21 08 00 08 addi $8, $8, 823# CHECK-NEXT 20004: 21 08 00 08 addi $8, $8, 8
24# ^-- %lo(_label)24# ^-- %lo(_label)
deps/lld/test/ELF/mips-micro-got.s created+46
...@@ -0,0 +1,46 @@
1# Check microMIPS GOT relocations for O32 ABI.
2
3# RUN: llvm-mc -filetype=obj -triple=mips-unknown-linux -mattr=micromips \
4# RUN: %s -o %t1.o
5# RUN: llvm-mc -filetype=obj -triple=mips-unknown-linux -mattr=micromips \
6# RUN: %S/Inputs/mips-dynamic.s -o %t2.o
7# RUN: ld.lld %t2.o -shared -o %t.so
8# RUN: ld.lld %t1.o %t.so -o %t.exe
9# RUN: llvm-readobj -mips-plt-got %t.exe | FileCheck %s
10
11# REQUIRES: mips
12
13# CHECK: Local entries [
14# CHECK-NEXT: Entry {
15# CHECK-NEXT: Address:
16# CHECK-NEXT: Access: -32744
17# CHECK-NEXT: Initial: 0x30000
18# CHECK-NEXT: }
19# CHECK-NEXT: Entry {
20# CHECK-NEXT: Address:
21# CHECK-NEXT: Access: -32740
22# CHECK-NEXT: Initial: 0x40000
23# CHECK-NEXT: }
24# CHECK-NEXT: ]
25# CHECK-NEXT: Global entries [
26# CHECK-NEXT: Entry {
27# CHECK-NEXT: Address:
28# CHECK-NEXT: Access: -32736
29# CHECK-NEXT: Initial: 0x0
30# CHECK-NEXT: Value: 0x0
31# CHECK-NEXT: Type: Function
32# CHECK-NEXT: Section: Undefined
33# CHECK-NEXT: Name: foo0
34# CHECK-NEXT: }
35# CHECK-NEXT: ]
36
37 .text
38 .global __start
39__start:
40 lw $4, %got(data)($28)
41 addiu $4, $4, %lo(data)
42 lw $25, %call16(foo0)($28)
43
44 .data
45data:
46 .word 0
deps/lld/test/ELF/mips-micro-got64.s created+48
...@@ -0,0 +1,48 @@
1# Check microMIPS GOT relocations for N64 ABI.
2
3# RUN: llvm-mc -filetype=obj -triple=mips64-unknown-linux -mattr=micromips \
4# RUN: %s -o %t1.o
5# RUN: llvm-mc -filetype=obj -triple=mips64-unknown-linux -mattr=micromips \
6# RUN: %S/Inputs/mips-dynamic.s -o %t2.o
7# RUN: ld.lld %t2.o -shared -o %t.so
8# RUN: ld.lld %t1.o %t.so -o %t.exe
9# RUN: llvm-readobj -mips-plt-got %t.exe | FileCheck %s
10
11# REQUIRES: mips
12
13# CHECK: Local entries [
14# CHECK-NEXT: Entry {
15# CHECK-NEXT: Address:
16# CHECK-NEXT: Access: -32736
17# CHECK-NEXT: Initial: 0x30000
18# CHECK-NEXT: }
19# CHECK-NEXT: Entry {
20# CHECK-NEXT: Address:
21# CHECK-NEXT: Access: -32728
22# CHECK-NEXT: Initial: 0x40000
23# CHECK-NEXT: }
24# CHECK-NEXT: ]
25# CHECK-NEXT: Global entries [
26# CHECK-NEXT: Entry {
27# CHECK-NEXT: Address:
28# CHECK-NEXT: Access: -32720
29# CHECK-NEXT: Initial: 0x0
30# CHECK-NEXT: Value: 0x0
31# CHECK-NEXT: Type: Function
32# CHECK-NEXT: Section: Undefined
33# CHECK-NEXT: Name: foo0
34# CHECK-NEXT: }
35# CHECK-NEXT: ]
36
37 .text
38 .global __start
39__start:
40 lui $28, %hi(%neg(%gp_rel(foo0)))
41 addiu $28, $28, %lo(%neg(%gp_rel(foo0)))
42 lw $4, %got_page(data)($28)
43 addiu $4, $4, %got_ofst(data)
44 lw $25, %call16(foo0)($28)
45
46 .data
47data:
48 .word 0
deps/lld/test/ELF/mips-micro-jal.s created+155
...@@ -0,0 +1,155 @@
1# Check PLT creation for microMIPS to microMIPS calls.
2
3# RUN: llvm-mc -filetype=obj -triple=mips-unknown-linux \
4# RUN: -mattr=micromips %S/Inputs/mips-micro.s -o %t1eb.o
5# RUN: ld.lld -shared -o %teb.so %t1eb.o
6# RUN: llvm-mc -filetype=obj -triple=mips-unknown-linux \
7# RUN: -mattr=micromips %s -o %t2eb.o
8# RUN: ld.lld -o %teb.exe %t2eb.o %teb.so
9# RUN: llvm-objdump -d -mattr=micromips %teb.exe | FileCheck --check-prefix=EB %s
10# RUN: llvm-readobj -mips-plt-got %teb.exe | FileCheck --check-prefix=PLT %s
11
12# RUN: llvm-mc -filetype=obj -triple=mipsel-unknown-linux \
13# RUN: -mattr=micromips %S/Inputs/mips-micro.s -o %t1el.o
14# RUN: ld.lld -shared -o %tel.so %t1el.o
15# RUN: llvm-mc -filetype=obj -triple=mipsel-unknown-linux \
16# RUN: -mattr=micromips %s -o %t2el.o
17# RUN: ld.lld -o %tel.exe %t2el.o %tel.so
18# RUN: llvm-objdump -d -mattr=micromips %tel.exe | FileCheck --check-prefix=EL %s
19# RUN: llvm-readobj -mips-plt-got %tel.exe | FileCheck --check-prefix=PLT %s
20
21# RUN: llvm-mc -filetype=obj -triple=mips-unknown-linux \
22# RUN: -mattr=micromips -mcpu=mips32r6 %S/Inputs/mips-micro.s -o %t1eb.o
23# RUN: ld.lld -shared -o %teb.so %t1eb.o
24# RUN: llvm-mc -filetype=obj -triple=mips-unknown-linux \
25# RUN: -mattr=micromips -mcpu=mips32r6 %s -o %t2eb.o
26# RUN: ld.lld -o %teb.exe %t2eb.o %teb.so
27# RUN: llvm-objdump -d -mattr=micromips %teb.exe | FileCheck --check-prefix=EBR6 %s
28
29# RUN: llvm-mc -filetype=obj -triple=mipsel-unknown-linux \
30# RUN: -mattr=micromips -mcpu=mips32r6 %S/Inputs/mips-micro.s -o %t1el.o
31# RUN: ld.lld -shared -o %tel.so %t1el.o
32# RUN: llvm-mc -filetype=obj -triple=mipsel-unknown-linux \
33# RUN: -mattr=micromips -mcpu=mips32r6 %s -o %t2el.o
34# RUN: ld.lld -o %tel.exe %t2el.o %tel.so
35# RUN: llvm-objdump -d -mattr=micromips %tel.exe | FileCheck --check-prefix=ELR6 %s
36
37# RUN: llvm-mc -filetype=obj -triple=mips-unknown-linux \
38# RUN: -mattr=micromips %S/Inputs/mips-micro.s -o %t1eb.o
39# RUN: ld.lld -shared -o %teb.so %t1eb.o
40# RUN: llvm-mc -filetype=obj -triple=mips-unknown-linux \
41# RUN: %S/Inputs/mips-fpic.s -o %t-reg.o
42# RUN: llvm-mc -filetype=obj -triple=mips-unknown-linux \
43# RUN: -mattr=micromips %s -o %t2eb.o
44# RUN: ld.lld --no-threads -o %teb.exe %t-reg.o %t2eb.o %teb.so
45# RUN: llvm-objdump -d -mattr=micromips %teb.exe \
46# RUN: | FileCheck --check-prefix=MIXED %s
47
48# REQUIRES: mips
49
50# EB: Disassembly of section .plt:
51# EB-NEXT: .plt:
52# EB-NEXT: 20010: 79 80 3f fd addiupc $3, 65524
53# EB-NEXT: 20014: ff 23 00 00 lw $25, 0($3)
54# EB-NEXT: 20018: 05 35 subu16 $2, $2, $3
55# EB-NEXT: 2001a: 25 25 srl16 $2, $2, 2
56# EB-NEXT: 2001c: 33 02 ff fe addiu $24, $2, -2
57# EB-NEXT: 20020: 0d ff move $15, $ra
58# EB-NEXT: 20022: 45 f9 jalrs16 $25
59# EB-NEXT: 20024: 0f 83 move $gp, $3
60# EB-NEXT: 20026: 0c 00 nop
61# EB-NEXT: 20028: 00 00 00 00 nop
62# EB-NEXT: 2002c: 00 00 00 00 nop
63
64# EB-NEXT: 20030: 79 00 3f f7 addiupc $2, 65500
65# EB-NEXT: 20034: ff 22 00 00 lw $25, 0($2)
66# EB-NEXT: 20038: 45 99 jr16 $25
67# EB-NEXT: 2003a: 0f 02 move $24, $2
68
69# EL: Disassembly of section .plt:
70# EL-NEXT: .plt:
71# EL-NEXT: 20010: 80 79 fd 3f addiupc $3, 65524
72# EL-NEXT: 20014: 23 ff 00 00 lw $25, 0($3)
73# EL-NEXT: 20018: 35 05 subu16 $2, $2, $3
74# EL-NEXT: 2001a: 25 25 srl16 $2, $2, 2
75# EL-NEXT: 2001c: 02 33 fe ff addiu $24, $2, -2
76# EL-NEXT: 20020: ff 0d move $15, $ra
77# EL-NEXT: 20022: f9 45 jalrs16 $25
78# EL-NEXT: 20024: 83 0f move $gp, $3
79# EL-NEXT: 20026: 00 0c nop
80# EL-NEXT: 20028: 00 00 00 00 nop
81# EL-NEXT: 2002c: 00 00 00 00 nop
82
83# EL-NEXT: 20030: 00 79 f7 3f addiupc $2, 65500
84# EL-NEXT: 20034: 22 ff 00 00 lw $25, 0($2)
85# EL-NEXT: 20038: 99 45 jr16 $25
86# EL-NEXT: 2003a: 02 0f move $24, $2
87
88# EBR6: Disassembly of section .plt:
89# EBR6-NEXT: .plt:
90# EBR6-NEXT: 20010: 78 60 3f fd lapc $3, 65524
91# EBR6-NEXT: 20014: ff 23 00 00 lw $25, 0($3)
92# EBR6-NEXT: 20018: 05 35 subu16 $2, $2, $3
93# EBR6-NEXT: 2001a: 25 25 srl16 $2, $2, 2
94# EBR6-NEXT: 2001c: 33 02 ff fe addiu $24, $2, -2
95# EBR6-NEXT: 20020: 0d ff move16 $15, $ra
96# EBR6-NEXT: 20022: 0f 83 move16 $gp, $3
97# EBR6-NEXT: 20024: 47 2b jalr $25
98
99# EBR6: 20030: 78 40 3f f7 lapc $2, 65500
100# EBR6-NEXT: 20034: ff 22 00 00 lw $25, 0($2)
101# EBR6-NEXT: 20038: 0f 02 move16 $24, $2
102# EBR6-NEXT: 2003a: 47 23 jrc16 $25
103
104# ELR6: Disassembly of section .plt:
105# ELR6-NEXT: .plt:
106# ELR6-NEXT: 20010: 60 78 fd 3f lapc $3, 65524
107# ELR6-NEXT: 20014: 23 ff 00 00 lw $25, 0($3)
108# ELR6-NEXT: 20018: 35 05 subu16 $2, $2, $3
109# ELR6-NEXT: 2001a: 25 25 srl16 $2, $2, 2
110# ELR6-NEXT: 2001c: 02 33 fe ff addiu $24, $2, -2
111# ELR6-NEXT: 20020: ff 0d move16 $15, $ra
112# ELR6-NEXT: 20022: 83 0f move16 $gp, $3
113# ELR6-NEXT: 20024: 2b 47 jalr $25
114
115# ELR6: 20030: 40 78 f7 3f lapc $2, 65500
116# ELR6-NEXT: 20034: 22 ff 00 00 lw $25, 0($2)
117# ELR6-NEXT: 20038: 02 0f move16 $24, $2
118# ELR6-NEXT: 2003a: 23 47 jrc16 $25
119
120# MIXED: Disassembly of section .plt:
121# MIXED-NEXT: .plt:
122# MIXED-NEXT: 20020: 79 80 3f f9 addiupc $3, 65508
123# MIXED-NEXT: 20024: ff 23 00 00 lw $25, 0($3)
124# MIXED-NEXT: 20028: 05 35 subu16 $2, $2, $3
125# MIXED-NEXT: 2002a: 25 25 srl16 $2, $2, 2
126# MIXED-NEXT: 2002c: 33 02 ff fe addiu $24, $2, -2
127# MIXED-NEXT: 20030: 0d ff move $15, $ra
128# MIXED-NEXT: 20032: 45 f9 jalrs16 $25
129# MIXED-NEXT: 20034: 0f 83 move $gp, $3
130# MIXED-NEXT: 20036: 0c 00 nop
131# MIXED-NEXT: 20038: 00 00 00 00 nop
132# MIXED-NEXT: 2003c: 00 00 00 00 nop
133
134# MIXED-NEXT: 20040: 79 00 3f f3 addiupc $2, 65484
135# MIXED-NEXT: 20044: ff 22 00 00 lw $25, 0($2)
136# MIXED-NEXT: 20048: 45 99 jr16 $25
137# MIXED-NEXT: 2004a: 0f 02 move $24, $2
138
139# PLT: Entries [
140# PLT-NEXT: Entry {
141# PLT-NEXT: Address: 0x3000C
142# ^ 0x20030 + 65500
143# PLT-NEXT: Initial:
144# PLT-NEXT: Value: 0x0
145# PLT-NEXT: Type: Function
146# PLT-NEXT: Section: Undefined
147# PLT-NEXT: Name: foo
148# PLT-NEXT: }
149# PLT-NEXT: ]
150
151 .text
152 .set micromips
153 .global __start
154__start:
155 jal foo
deps/lld/test/ELF/mips-micro-plt.s created+91
...@@ -0,0 +1,91 @@
1# Check less-significant bit setup for microMIPS PLT.
2
3# RUN: llvm-mc -filetype=obj -triple=mips-unknown-linux \
4# RUN: -mattr=micromips %S/Inputs/mips-dynamic.s -o %t-dso.o
5# RUN: ld.lld %t-dso.o -shared -o %t.so
6# RUN: llvm-mc -filetype=obj -triple=mips-unknown-linux \
7# RUN: -mattr=micromips %s -o %t-exe.o
8# RUN: ld.lld %t-exe.o %t.so -o %t.exe
9# RUN: llvm-readobj -t -dt -mips-plt-got %t.exe | FileCheck %s
10
11# REQUIRES: mips
12
13# CHECK: Symbols [
14# CHECK: Symbol {
15# CHECK: Name: foo
16# CHECK-NEXT: Value: 0x20008
17# CHECK-NEXT: Size:
18# CHECK-NEXT: Binding: Local
19# CHECK-NEXT: Type: None
20# CHECK-NEXT: Other [
21# CHECK-NEXT: STO_MIPS_MICROMIPS
22# CHECK-NEXT: STV_HIDDEN
23# CHECK-NEXT: ]
24# CHECK-NEXT: Section: .text
25# CHECK-NEXT: }
26# CHECK: Symbol {
27# CHECK: Name: __start
28# CHECK-NEXT: Value: 0x20000
29# CHECK-NEXT: Size:
30# CHECK-NEXT: Binding: Global
31# CHECK-NEXT: Type: None
32# CHECK-NEXT: Other [
33# CHECK-NEXT: STO_MIPS_MICROMIPS
34# CHECK-NEXT: ]
35# CHECK-NEXT: Section: .text
36# CHECK-NEXT: }
37# CHECK: Symbol {
38# CHECK: Name: foo0
39# CHECK-NEXT: Value: 0x0
40# CHECK-NEXT: Size:
41# CHECK-NEXT: Binding: Global
42# CHECK-NEXT: Type: Function
43# CHECK-NEXT: Other: 0
44# CHECK-NEXT: Section: Undefined
45# CHECK-NEXT: }
46# CHECK-NEXT: ]
47# CHECK: DynamicSymbols [
48# CHECK: Symbol {
49# CHECK: Name: foo0
50# CHECK-NEXT: Value: 0x0
51# CHECK-NEXT: Size:
52# CHECK-NEXT: Binding: Global
53# CHECK-NEXT: Type: Function
54# CHECK-NEXT: Other: 0
55# CHECK-NEXT: Section: Undefined
56# CHECK-NEXT: }
57# CHECK-NEXT: ]
58
59# CHECK: Primary GOT {
60# CHECK: Local entries [
61# CHECK-NEXT: Entry {
62# CHECK-NEXT: Address:
63# CHECK-NEXT: Access:
64# CHECK-NEXT: Initial: 0x20009
65# CHECK-NEXT: }
66# CHECK: ]
67# CHECK: }
68
69# CHECK: PLT GOT {
70# CHECK: Entries [
71# CHECK-NEXT: Entry {
72# CHECK-NEXT: Address:
73# CHECK-NEXT: Initial: 0x20011
74# CHECK-NEXT: Value: 0x0
75# CHECK-NEXT: Type: Function
76# CHECK-NEXT: Section: Undefined
77# CHECK-NEXT: Name: foo0@
78# CHECK-NEXT: }
79# CHECK-NEXT: ]
80# CHECK-NEXT: }
81
82 .text
83 .set micromips
84 .global foo
85 .hidden foo
86 .global __start
87__start:
88 lw $t0,%got(foo)($gp)
89 addi $t0,$t0,%lo(foo)
90foo:
91 jal foo0
deps/lld/test/ELF/mips-micro-relocs.s created+59
...@@ -0,0 +1,59 @@
1# Check handling of microMIPS relocations.
2
3# RUN: llvm-mc -filetype=obj -triple=mips-unknown-linux \
4# RUN: -mattr=micromips %S/Inputs/mips-micro.s -o %t1eb.o
5# RUN: llvm-mc -filetype=obj -triple=mips-unknown-linux \
6# RUN: -mattr=micromips %s -o %t2eb.o
7# RUN: ld.lld -o %teb.exe %t1eb.o %t2eb.o
8# RUN: llvm-objdump -d -t -mattr=micromips %teb.exe \
9# RUN: | FileCheck --check-prefixes=EB,SYM %s
10
11# RUN: llvm-mc -filetype=obj -triple=mipsel-unknown-linux \
12# RUN: -mattr=micromips %S/Inputs/mips-micro.s -o %t1el.o
13# RUN: llvm-mc -filetype=obj -triple=mipsel-unknown-linux \
14# RUN: -mattr=micromips %s -o %t2el.o
15# RUN: ld.lld -o %tel.exe %t1el.o %t2el.o
16# RUN: llvm-objdump -d -t -mattr=micromips %tel.exe \
17# RUN: | FileCheck --check-prefixes=EL,SYM %s
18
19# REQUIRES: mips
20
21# EB: __start:
22# EB-NEXT: 20010: 41 a3 00 01 lui $3, 1
23# EB-NEXT: 20014: 30 63 7f df addiu $3, $3, 32735
24# EB-NEXT: 20018: fc 7c 80 18 lw $3, -32744($gp)
25# EB-NEXT: 2001c: fc 63 80 18 lw $3, -32744($3)
26# EB-NEXT: 20020: 8f 70 beqz16 $6, -32
27# EB-NEXT: 20022: 00 7e 00 00 sll $3, $fp, 0
28# EB-NEXT: 20026: cf ec b16 -40
29# EB-NEXT: 20028: 00 00 00 00 nop
30# EB-NEXT: 2002c: 94 00 ff e8 b -44
31
32# EL: __start:
33# EL-NEXT: 20010: a3 41 01 00 lui $3, 1
34# EL-NEXT: 20014: 63 30 df 7f addiu $3, $3, 32735
35# EL-NEXT: 20018: 7c fc 18 80 lw $3, -32744($gp)
36# EL-NEXT: 2001c: 63 fc 18 80 lw $3, -32744($3)
37# EL-NEXT: 20020: 70 8f beqz16 $6, -32
38# EL-NEXT: 20022: 7e 00 00 00 sll $3, $fp, 0
39# EL-NEXT: 20026: ec cf b16 -40
40# EL-NEXT: 20028: 00 00 00 00 nop
41# EL-NEXT: 2002c: 00 94 e8 ff b -44
42
43# SYM: 00037ff0 .got 00000000 .hidden _gp
44# SYM: 00020000 g F .text 00000000 foo
45# SYM: 00020010 .text 00000000 __start
46
47 .text
48 .set micromips
49 .global __start
50__start:
51 lui $3, %hi(_gp_disp) # R_MICROMIPS_HI16
52 addiu $3, $3, %lo(_gp_disp) # R_MICROMIPS_LO16
53
54 lw $3, %call16(foo)($gp) # R_MICROMIPS_CALL16
55 lw $3, %got(foo)($3) # R_MICROMIPS_GOT16
56
57 beqz16 $6, foo # R_MICROMIPS_PC7_S1
58 b16 foo # R_MICROMIPS_PC10_S1
59 b foo # R_MICROMIPS_PC16_S1
deps/lld/test/ELF/mips-micro-thunks.s created+47
...@@ -0,0 +1,47 @@
1# Check microMIPS thunk generation.
2
3# RUN: llvm-mc -filetype=obj -triple=mips-unknown-linux \
4# RUN: -mattr=micromips %s -o %t-eb.o
5# RUN: llvm-mc -filetype=obj -triple=mips-unknown-linux \
6# RUN: -position-independent -mattr=micromips \
7# RUN: %S/Inputs/mips-micro.s -o %t-eb-pic.o
8# RUN: ld.lld -o %t-eb.exe %t-eb.o %t-eb-pic.o
9# RUN: llvm-objdump -d -mattr=+micromips %t-eb.exe \
10# RUN: | FileCheck --check-prefix=EB %s
11
12# RUN: llvm-mc -filetype=obj -triple=mipsel-unknown-linux \
13# RUN: -mattr=micromips %s -o %t-el.o
14# RUN: llvm-mc -filetype=obj -triple=mipsel-unknown-linux \
15# RUN: -position-independent -mattr=micromips \
16# RUN: %S/Inputs/mips-micro.s -o %t-el-pic.o
17# RUN: ld.lld -o %t-el.exe %t-el.o %t-el-pic.o
18# RUN: llvm-objdump -d -mattr=+micromips %t-el.exe \
19# RUN: | FileCheck --check-prefix=EL %s
20
21# REQUIRES: mips
22
23# EB: __start:
24# EB-NEXT: 20000: f4 01 00 04 jal 131080 <__microLA25Thunk_foo>
25# EB-NEXT: 20004: 00 00 00 00 nop
26
27# EB: __microLA25Thunk_foo:
28# EB-NEXT: 20008: 41 b9 00 02 lui $25, 2
29# EB-NEXT: 2000c: d4 01 00 10 j 131104
30# EB-NEXT: 20010: 33 39 00 21 addiu $25, $25, 33
31# EB-NEXT: 20014: 0c 00 nop
32
33# EL: __start:
34# EL-NEXT: 20000: 01 f4 04 00 jal 131080 <__microLA25Thunk_foo>
35# EL-NEXT: 20004: 00 00 00 00 nop
36
37# EL: __microLA25Thunk_foo:
38# EL-NEXT: 20008: b9 41 02 00 lui $25, 2
39# EL-NEXT: 2000c: 01 d4 10 00 j 131104
40# EL-NEXT: 20010: 39 33 21 00 addiu $25, $25, 33
41# EL-NEXT: 20014: 00 0c nop
42
43 .text
44 .set micromips
45 .global __start
46__start:
47 jal foo
deps/lld/test/ELF/mips-n32-rels.s+3-3
...@@ -38,11 +38,11 @@...@@ -38,11 +38,11 @@
38# ^-- %lo(0x17ff0)38# ^-- %lo(0x17ff0)
3939
40# CHECK: Contents of section .rodata:40# CHECK: Contents of section .rodata:
41# CHECK-NEXT: 100d4 0002000441# CHECK-NEXT: {{[0-9a-f]+}} 00020004
42# ^-- loc42# ^-- loc
4343
44# CHECK: 00020004 .text 00000000 loc44# CHECK: 00020004 .text 00000000 loc
45# CHECK: 00037ff0 *ABS* 00000000 .hidden _gp45# CHECK: 00037ff0 .got 00000000 .hidden _gp
46# CHECK: 00020000 g F .text 00000000 __start46# CHECK: 00020000 g F .text 00000000 __start
4747
48# ELF: Format: ELF32-mips48# ELF: Format: ELF32-mips
deps/lld/test/ELF/mips-out-of-bounds-call16-reloc.s created+29
...@@ -0,0 +1,29 @@
1# Check that we create an error on an out-of-bounds R_MIPS_CALL_16
2
3# REQUIRES: mips
4# RUN: llvm-mc -filetype=obj -triple=mips64-unknown-linux %s -o %t1.o
5# RUN: not ld.lld %t1.o -o %t.exe 2>&1 | FileCheck %s
6
7# CHECK: relocation R_MIPS_CALL16 out of range: 32768 is not in [-32768, 32767]
8
9.macro generate_values
10 .irp i, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9,
11 .irp j, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9,
12 .irp k, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9,
13 .irp l, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9,
14 .text
15 .globl sym_\i\j\k\l
16 sym_\i\j\k\l:
17 nop
18 lw $25,%call16(sym_\i\j\k\l)($28)
19 .endr
20 .endr
21 .endr
22 .endr
23.endm
24
25generate_values
26
27.globl __start
28__start:
29 nop
deps/lld/test/ELF/no-inhibit-exec.s+4
...@@ -2,12 +2,16 @@...@@ -2,12 +2,16 @@
2# RUN: not ld.lld %t -o %t22# RUN: not ld.lld %t -o %t2
3# RUN: ld.lld %t --noinhibit-exec -o %t23# RUN: ld.lld %t --noinhibit-exec -o %t2
4# RUN: llvm-objdump -d %t2 | FileCheck %s4# RUN: llvm-objdump -d %t2 | FileCheck %s
5# RUN: llvm-readobj -r %t2 | FileCheck %s --check-prefix=RELOC
5# REQUIRES: x866# REQUIRES: x86
67
7# CHECK: Disassembly of section .text:8# CHECK: Disassembly of section .text:
8# CHECK-NEXT: _start9# CHECK-NEXT: _start
9# CHECK-NEXT: 201000: {{.*}} callq -210125310# CHECK-NEXT: 201000: {{.*}} callq -2101253
1011
12# RELOC: Relocations [
13# RELOC-NEXT: ]
14
11# next code will not link without noinhibit-exec flag15# next code will not link without noinhibit-exec flag
12# because of undefined symbol _bar16# because of undefined symbol _bar
13.globl _start17.globl _start
deps/lld/test/ELF/non-abs-reloc.s+1-1
...@@ -1,7 +1,7 @@...@@ -1,7 +1,7 @@
1// REQUIRES: x861// REQUIRES: x86
2// RUN: llvm-mc -filetype=obj -triple=x86_64-pc-linux %s -o %t.o2// RUN: llvm-mc -filetype=obj -triple=x86_64-pc-linux %s -o %t.o
3// RUN: not ld.lld %t.o -o %t.so -shared 2>&1 | FileCheck %s3// RUN: not ld.lld %t.o -o %t.so -shared 2>&1 | FileCheck %s
4// CHECK: {{.*}}:(.dummy+0x0): has non-ABS reloc4// CHECK: {{.*}}:(.dummy+0x0): has non-ABS relocation R_X86_64_GOTPCREL against symbol 'foo'
55
6.globl _start6.globl _start
7_start:7_start:
deps/lld/test/ELF/noplt-pie.s+1-1
...@@ -2,7 +2,7 @@...@@ -2,7 +2,7 @@
2# RUN: llvm-mc -filetype=obj -triple=x86_64-unknown-linux %s -o %t1.o2# RUN: llvm-mc -filetype=obj -triple=x86_64-unknown-linux %s -o %t1.o
3# RUN: llvm-mc -filetype=obj -triple=x86_64-unknown-linux %p/Inputs/shared.s -o %t2.o3# RUN: llvm-mc -filetype=obj -triple=x86_64-unknown-linux %p/Inputs/shared.s -o %t2.o
4# RUN: ld.lld -shared %t2.o -o %t2.so4# RUN: ld.lld -shared %t2.o -o %t2.so
5# RUN: ld.lld %t1.o %t2.so -o %t.out5# RUN: ld.lld --hash-style=sysv %t1.o %t2.so -o %t.out
6# RUN: llvm-readobj -s -r %t.out | FileCheck %s6# RUN: llvm-readobj -s -r %t.out | FileCheck %s
77
8# CHECK: Section {8# CHECK: Section {
deps/lld/test/ELF/pack-dyn-relocs.s created+210
...@@ -0,0 +1,210 @@
1// REQUIRES: arm, aarch64
2
3// RUN: llvm-mc -filetype=obj -triple=armv7a-none-linux-gnueabi %p/Inputs/arm-shared.s -o %t.a32.so.o
4// RUN: ld.lld -shared %t.a32.so.o -o %t.a32.so
5// RUN: llvm-mc -filetype=obj -triple=armv7a-none-linux-gnueabi %s -o %t.a32
6// RUN: ld.lld -pie --pack-dyn-relocs=none %t.a32 %t.a32.so -o %t2.a32
7// RUN: llvm-readobj -relocations %t2.a32 | FileCheck --check-prefix=UNPACKED32 %s
8// RUN: ld.lld -pie --pack-dyn-relocs=android %t.a32 %t.a32.so -o %t3.a32
9// RUN: llvm-readobj -s -dynamic-table %t3.a32 | FileCheck --check-prefix=PACKED32-HEADERS %s
10// RUN: llvm-readobj -relocations %t3.a32 | FileCheck --check-prefix=PACKED32 %s
11
12// Unpacked should have the relative relocations in their natural order.
13// UNPACKED32: 0x1000 R_ARM_RELATIVE - 0x0
14// UNPACKED32-NEXT: 0x1004 R_ARM_RELATIVE - 0x0
15// UNPACKED32-NEXT: 0x1008 R_ARM_RELATIVE - 0x0
16// UNPACKED32-NEXT: 0x100C R_ARM_RELATIVE - 0x0
17// UNPACKED32-NEXT: 0x1010 R_ARM_RELATIVE - 0x0
18// UNPACKED32-NEXT: 0x1014 R_ARM_RELATIVE - 0x0
19// UNPACKED32-NEXT: 0x1018 R_ARM_RELATIVE - 0x0
20// UNPACKED32-NEXT: 0x101C R_ARM_RELATIVE - 0x0
21
22// UNPACKED32-NEXT: 0x1024 R_ARM_RELATIVE - 0x0
23// UNPACKED32-NEXT: 0x1028 R_ARM_RELATIVE - 0x0
24// UNPACKED32-NEXT: 0x102C R_ARM_RELATIVE - 0x0
25// UNPACKED32-NEXT: 0x1030 R_ARM_RELATIVE - 0x0
26// UNPACKED32-NEXT: 0x1034 R_ARM_RELATIVE - 0x0
27// UNPACKED32-NEXT: 0x1038 R_ARM_RELATIVE - 0x0
28// UNPACKED32-NEXT: 0x103C R_ARM_RELATIVE - 0x0
29
30// UNPACKED32-NEXT: 0x1044 R_ARM_RELATIVE - 0x0
31// UNPACKED32-NEXT: 0x1048 R_ARM_RELATIVE - 0x0
32// UNPACKED32-NEXT: 0x104C R_ARM_RELATIVE - 0x0
33// UNPACKED32-NEXT: 0x1050 R_ARM_RELATIVE - 0x0
34// UNPACKED32-NEXT: 0x1054 R_ARM_RELATIVE - 0x0
35// UNPACKED32-NEXT: 0x1058 R_ARM_RELATIVE - 0x0
36// UNPACKED32-NEXT: 0x105C R_ARM_RELATIVE - 0x0
37// UNPACKED32-NEXT: 0x1060 R_ARM_RELATIVE - 0x0
38// UNPACKED32-NEXT: 0x1064 R_ARM_RELATIVE - 0x0
39
40// UNPACKED32-NEXT: 0x1020 R_ARM_ABS32 bar2 0x0
41// UNPACKED32-NEXT: 0x1040 R_ARM_ABS32 zed2 0x0
42
43// PACKED32-HEADERS: Index: 1
44// PACKED32-HEADERS-NEXT: Name: .dynsym
45
46// PACKED32-HEADERS: Name: .rel.dyn
47// PACKED32-HEADERS-NEXT: Type: SHT_ANDROID_REL
48// PACKED32-HEADERS-NEXT: Flags [ (0x2)
49// PACKED32-HEADERS-NEXT: SHF_ALLOC (0x2)
50// PACKED32-HEADERS-NEXT: ]
51// PACKED32-HEADERS-NEXT: Address: [[ADDR:.*]]
52// PACKED32-HEADERS-NEXT: Offset: [[ADDR]]
53// PACKED32-HEADERS-NEXT: Size: [[SIZE:.*]]
54// PACKED32-HEADERS-NEXT: Link: 1
55// PACKED32-HEADERS-NEXT: Info: 0
56// PACKED32-HEADERS-NEXT: AddressAlignment: 4
57// PACKED32-HEADERS-NEXT: EntrySize: 1
58
59// PACKED32-HEADERS: 0x6000000F ANDROID_REL [[ADDR]]
60// PACKED32-HEADERS: 0x60000010 ANDROID_RELSZ [[SIZE]]
61
62// Packed should have the larger groups of relative relocations first,
63// i.e. the 8 and 9 followed by the 7.
64// PACKED32: 0x1000 R_ARM_RELATIVE - 0x0
65// PACKED32-NEXT: 0x1004 R_ARM_RELATIVE - 0x0
66// PACKED32-NEXT: 0x1008 R_ARM_RELATIVE - 0x0
67// PACKED32-NEXT: 0x100C R_ARM_RELATIVE - 0x0
68// PACKED32-NEXT: 0x1010 R_ARM_RELATIVE - 0x0
69// PACKED32-NEXT: 0x1014 R_ARM_RELATIVE - 0x0
70// PACKED32-NEXT: 0x1018 R_ARM_RELATIVE - 0x0
71// PACKED32-NEXT: 0x101C R_ARM_RELATIVE - 0x0
72
73// PACKED32-NEXT: 0x1044 R_ARM_RELATIVE - 0x0
74// PACKED32-NEXT: 0x1048 R_ARM_RELATIVE - 0x0
75// PACKED32-NEXT: 0x104C R_ARM_RELATIVE - 0x0
76// PACKED32-NEXT: 0x1050 R_ARM_RELATIVE - 0x0
77// PACKED32-NEXT: 0x1054 R_ARM_RELATIVE - 0x0
78// PACKED32-NEXT: 0x1058 R_ARM_RELATIVE - 0x0
79// PACKED32-NEXT: 0x105C R_ARM_RELATIVE - 0x0
80// PACKED32-NEXT: 0x1060 R_ARM_RELATIVE - 0x0
81// PACKED32-NEXT: 0x1064 R_ARM_RELATIVE - 0x0
82
83// PACKED32-NEXT: 0x1024 R_ARM_RELATIVE - 0x0
84// PACKED32-NEXT: 0x1028 R_ARM_RELATIVE - 0x0
85// PACKED32-NEXT: 0x102C R_ARM_RELATIVE - 0x0
86// PACKED32-NEXT: 0x1030 R_ARM_RELATIVE - 0x0
87// PACKED32-NEXT: 0x1034 R_ARM_RELATIVE - 0x0
88// PACKED32-NEXT: 0x1038 R_ARM_RELATIVE - 0x0
89// PACKED32-NEXT: 0x103C R_ARM_RELATIVE - 0x0
90
91// PACKED32-NEXT: 0x1020 R_ARM_ABS32 bar2 0x0
92// PACKED32-NEXT: 0x1040 R_ARM_ABS32 zed2 0x0
93
94// RUN: llvm-mc -filetype=obj -triple=aarch64-unknown-linux %p/Inputs/shared2.s -o %t.a64.so.o
95// RUN: ld.lld -shared %t.a64.so.o -o %t.a64.so
96// RUN: llvm-mc -filetype=obj -triple=aarch64-unknown-linux %s -o %t.a64
97// RUN: ld.lld -pie --pack-dyn-relocs=none %t.a64 %t.a64.so -o %t2.a64
98// RUN: llvm-readobj -relocations %t2.a64 | FileCheck --check-prefix=UNPACKED64 %s
99// RUN: ld.lld -pie --pack-dyn-relocs=android %t.a64 %t.a64.so -o %t3.a64
100// RUN: llvm-readobj -s -dynamic-table %t3.a64 | FileCheck --check-prefix=PACKED64-HEADERS %s
101// RUN: llvm-readobj -relocations %t3.a64 | FileCheck --check-prefix=PACKED64 %s
102
103// UNPACKED64: 0x10000 R_AARCH64_RELATIVE - 0x1
104// UNPACKED64-NEXT: 0x10008 R_AARCH64_RELATIVE - 0x2
105// UNPACKED64-NEXT: 0x10010 R_AARCH64_RELATIVE - 0x3
106// UNPACKED64-NEXT: 0x10018 R_AARCH64_RELATIVE - 0x4
107// UNPACKED64-NEXT: 0x10020 R_AARCH64_RELATIVE - 0x5
108// UNPACKED64-NEXT: 0x10028 R_AARCH64_RELATIVE - 0x6
109// UNPACKED64-NEXT: 0x10030 R_AARCH64_RELATIVE - 0x7
110// UNPACKED64-NEXT: 0x10038 R_AARCH64_RELATIVE - 0x8
111
112// UNPACKED64-NEXT: 0x10048 R_AARCH64_RELATIVE - 0x1
113// UNPACKED64-NEXT: 0x10050 R_AARCH64_RELATIVE - 0x2
114// UNPACKED64-NEXT: 0x10058 R_AARCH64_RELATIVE - 0x3
115// UNPACKED64-NEXT: 0x10060 R_AARCH64_RELATIVE - 0x4
116// UNPACKED64-NEXT: 0x10068 R_AARCH64_RELATIVE - 0x5
117// UNPACKED64-NEXT: 0x10070 R_AARCH64_RELATIVE - 0x6
118// UNPACKED64-NEXT: 0x10078 R_AARCH64_RELATIVE - 0x7
119
120// UNPACKED64-NEXT: 0x10088 R_AARCH64_RELATIVE - 0x1
121// UNPACKED64-NEXT: 0x10090 R_AARCH64_RELATIVE - 0x2
122// UNPACKED64-NEXT: 0x10098 R_AARCH64_RELATIVE - 0x3
123// UNPACKED64-NEXT: 0x100A0 R_AARCH64_RELATIVE - 0x4
124// UNPACKED64-NEXT: 0x100A8 R_AARCH64_RELATIVE - 0x5
125// UNPACKED64-NEXT: 0x100B0 R_AARCH64_RELATIVE - 0x6
126// UNPACKED64-NEXT: 0x100B8 R_AARCH64_RELATIVE - 0x7
127// UNPACKED64-NEXT: 0x100C0 R_AARCH64_RELATIVE - 0x8
128// UNPACKED64-NEXT: 0x100C8 R_AARCH64_RELATIVE - 0x9
129
130// UNPACKED64-NEXT: 0x10040 R_AARCH64_ABS64 bar2 0x1
131// UNPACKED64-NEXT: 0x10080 R_AARCH64_ABS64 zed2 0x0
132
133// PACKED64: 0x10000 R_AARCH64_RELATIVE - 0x1
134// PACKED64-NEXT: 0x10008 R_AARCH64_RELATIVE - 0x2
135// PACKED64-NEXT: 0x10010 R_AARCH64_RELATIVE - 0x3
136// PACKED64-NEXT: 0x10018 R_AARCH64_RELATIVE - 0x4
137// PACKED64-NEXT: 0x10020 R_AARCH64_RELATIVE - 0x5
138// PACKED64-NEXT: 0x10028 R_AARCH64_RELATIVE - 0x6
139// PACKED64-NEXT: 0x10030 R_AARCH64_RELATIVE - 0x7
140// PACKED64-NEXT: 0x10038 R_AARCH64_RELATIVE - 0x8
141
142// PACKED64-NEXT: 0x10088 R_AARCH64_RELATIVE - 0x1
143// PACKED64-NEXT: 0x10090 R_AARCH64_RELATIVE - 0x2
144// PACKED64-NEXT: 0x10098 R_AARCH64_RELATIVE - 0x3
145// PACKED64-NEXT: 0x100A0 R_AARCH64_RELATIVE - 0x4
146// PACKED64-NEXT: 0x100A8 R_AARCH64_RELATIVE - 0x5
147// PACKED64-NEXT: 0x100B0 R_AARCH64_RELATIVE - 0x6
148// PACKED64-NEXT: 0x100B8 R_AARCH64_RELATIVE - 0x7
149// PACKED64-NEXT: 0x100C0 R_AARCH64_RELATIVE - 0x8
150// PACKED64-NEXT: 0x100C8 R_AARCH64_RELATIVE - 0x9
151
152// PACKED64-NEXT: 0x10048 R_AARCH64_RELATIVE - 0x1
153// PACKED64-NEXT: 0x10050 R_AARCH64_RELATIVE - 0x2
154// PACKED64-NEXT: 0x10058 R_AARCH64_RELATIVE - 0x3
155// PACKED64-NEXT: 0x10060 R_AARCH64_RELATIVE - 0x4
156// PACKED64-NEXT: 0x10068 R_AARCH64_RELATIVE - 0x5
157// PACKED64-NEXT: 0x10070 R_AARCH64_RELATIVE - 0x6
158// PACKED64-NEXT: 0x10078 R_AARCH64_RELATIVE - 0x7
159
160// PACKED64-NEXT: 0x10040 R_AARCH64_ABS64 bar2 0x1
161// PACKED64-NEXT: 0x10080 R_AARCH64_ABS64 zed2 0x0
162
163// PACKED64-HEADERS: Index: 1
164// PACKED64-HEADERS-NEXT: Name: .dynsym
165
166// PACKED64-HEADERS: Name: .rela.dyn
167// PACKED64-HEADERS-NEXT: Type: SHT_ANDROID_RELA
168// PACKED64-HEADERS-NEXT: Flags [ (0x2)
169// PACKED64-HEADERS-NEXT: SHF_ALLOC (0x2)
170// PACKED64-HEADERS-NEXT: ]
171// PACKED64-HEADERS-NEXT: Address: [[ADDR:.*]]
172// PACKED64-HEADERS-NEXT: Offset: [[ADDR]]
173// PACKED64-HEADERS-NEXT: Size: [[SIZE:.*]]
174// PACKED64-HEADERS-NEXT: Link: 1
175// PACKED64-HEADERS-NEXT: Info: 0
176// PACKED64-HEADERS-NEXT: AddressAlignment: 8
177// PACKED64-HEADERS-NEXT: EntrySize: 1
178
179// PACKED64-HEADERS: 0x0000000060000011 ANDROID_RELA [[ADDR]]
180// PACKED64-HEADERS: 0x0000000060000012 ANDROID_RELASZ [[SIZE]]
181
182.data
183.dc.a __ehdr_start + 1
184.dc.a __ehdr_start + 2
185.dc.a __ehdr_start + 3
186.dc.a __ehdr_start + 4
187.dc.a __ehdr_start + 5
188.dc.a __ehdr_start + 6
189.dc.a __ehdr_start + 7
190.dc.a __ehdr_start + 8
191.dc.a bar2 + 1
192
193.dc.a __ehdr_start + 1
194.dc.a __ehdr_start + 2
195.dc.a __ehdr_start + 3
196.dc.a __ehdr_start + 4
197.dc.a __ehdr_start + 5
198.dc.a __ehdr_start + 6
199.dc.a __ehdr_start + 7
200.dc.a zed2
201
202.dc.a __ehdr_start + 1
203.dc.a __ehdr_start + 2
204.dc.a __ehdr_start + 3
205.dc.a __ehdr_start + 4
206.dc.a __ehdr_start + 5
207.dc.a __ehdr_start + 6
208.dc.a __ehdr_start + 7
209.dc.a __ehdr_start + 8
210.dc.a __ehdr_start + 9
deps/lld/test/ELF/pie-weak.s+5-2
...@@ -1,10 +1,13 @@...@@ -1,10 +1,13 @@
1# REQUIRES: x861# REQUIRES: x86
2# RUN: llvm-mc -filetype=obj -relax-relocations=false -triple=x86_64-unknown-linux %s -o %t.o2# RUN: llvm-mc -filetype=obj -relax-relocations=false -triple=x86_64-unknown-linux %s -o %t.o
3# RUN: ld.lld -pie %t.o -o %t3# RUN: ld.lld --hash-style=sysv -pie %t.o -o %t
4# RUN: llvm-readobj -r %t | FileCheck --check-prefix=RELOCS %s4# RUN: llvm-readobj -r %t | FileCheck --check-prefix=RELOCS %s
5# RUN: llvm-objdump -d %t | FileCheck --check-prefix=DISASM %s5# RUN: llvm-objdump -d %t | FileCheck --check-prefix=DISASM %s
66
7# RELOCS: Relocations [7# RELOCS: Relocations [
8# RELOCS-NEXT: Section ({{.*}}) .rela.dyn {
9# RELOCS-NEXT: R_X86_64_GLOB_DAT foo 0x0
10# RELOCS-NEXT: }
8# RELOCS-NEXT: ]11# RELOCS-NEXT: ]
912
10.weak foo13.weak foo
...@@ -12,6 +15,6 @@...@@ -12,6 +15,6 @@
12.globl _start15.globl _start
13_start:16_start:
14# DISASM: _start:17# DISASM: _start:
15# DISASM-NEXT: 1000: 48 8b 05 69 10 00 00 movq 4201(%rip), %rax18# DISASM-NEXT: 1000: 48 8b 05 99 10 00 00 movq 4249(%rip), %rax
16# ^ .got - (.text + 7)19# ^ .got - (.text + 7)
17mov foo@gotpcrel(%rip), %rax20mov foo@gotpcrel(%rip), %rax
deps/lld/test/ELF/ppc-relocs.s+31-5
...@@ -17,6 +17,20 @@ msg:...@@ -17,6 +17,20 @@ msg:
17# CHECK: msg:17# CHECK: msg:
18# CHECK: 11004: 66 6f 6f 00 oris 15, 19, 2841618# CHECK: 11004: 66 6f 6f 00 oris 15, 19, 28416
1919
20.section .R_PPC_ADDR16_HI,"ax",@progbits
21.globl _starti
22_starti:
23 lis 4,msgi@h
24msgi:
25 .string "foo"
26 leni = . - msgi
27
28# CHECK: Disassembly of section .R_PPC_ADDR16_HI:
29# CHECK: _starti:
30# CHECK: 11008: 3c 80 00 01 lis 4, 1
31# CHECK: msgi:
32# CHECK: 1100c: 66 6f 6f 00 oris 15, 19, 28416
33
20.section .R_PPC_ADDR16_LO,"ax",@progbits34.section .R_PPC_ADDR16_LO,"ax",@progbits
21 addi 4, 4, msg@l35 addi 4, 4, msg@l
22mystr:36mystr:
...@@ -25,9 +39,9 @@ mystr:...@@ -25,9 +39,9 @@ mystr:
2539
26# CHECK: Disassembly of section .R_PPC_ADDR16_LO:40# CHECK: Disassembly of section .R_PPC_ADDR16_LO:
27# CHECK: .R_PPC_ADDR16_LO:41# CHECK: .R_PPC_ADDR16_LO:
28# CHECK: 11008: 38 84 10 04 addi 4, 4, 410042# CHECK: 11010: 38 84 10 04 addi 4, 4, 4100
29# CHECK: mystr:43# CHECK: mystr:
30# CHECK: 1100c: 62 6c 61 68 ori 12, 19, 2493644# CHECK: 11014: 62 6c 61 68 ori 12, 19, 24936
3145
32.align 246.align 2
33.section .R_PPC_REL24,"ax",@progbits47.section .R_PPC_REL24,"ax",@progbits
...@@ -39,7 +53,7 @@ mystr:...@@ -39,7 +53,7 @@ mystr:
3953
40# CHECK: Disassembly of section .R_PPC_REL24:54# CHECK: Disassembly of section .R_PPC_REL24:
41# CHECK: .FR_PPC_REL24:55# CHECK: .FR_PPC_REL24:
42# CHECK: 11014: 48 00 00 04 b .+456# CHECK: 1101c: 48 00 00 04 b .+4
4357
44.section .R_PPC_REL32,"ax",@progbits58.section .R_PPC_REL32,"ax",@progbits
45.globl .FR_PPC_REL3259.globl .FR_PPC_REL32
...@@ -50,7 +64,7 @@ mystr:...@@ -50,7 +64,7 @@ mystr:
5064
51# CHECK: Disassembly of section .R_PPC_REL32:65# CHECK: Disassembly of section .R_PPC_REL32:
52# CHECK: .FR_PPC_REL32:66# CHECK: .FR_PPC_REL32:
53# CHECK: 11018: 00 00 00 0467# CHECK: 11020: 00 00 00 04
5468
55.section .R_PPC_ADDR32,"ax",@progbits69.section .R_PPC_ADDR32,"ax",@progbits
56.globl .FR_PPC_ADDR3270.globl .FR_PPC_ADDR32
...@@ -61,4 +75,16 @@ mystr:...@@ -61,4 +75,16 @@ mystr:
6175
62# CHECK: Disassembly of section .R_PPC_ADDR32:76# CHECK: Disassembly of section .R_PPC_ADDR32:
63# CHECK: .FR_PPC_ADDR32:77# CHECK: .FR_PPC_ADDR32:
64# CHECK: 1101c: 00 01 10 2078# CHECK: 11024: 00 01 10 28
79
80.align 2
81.section .R_PPC_PLTREL24,"ax",@progbits
82.globl .R_PPC_PLTREL24
83.FR_PPC_PLTREL24:
84 b .Lfoox4@PLT
85.section .R_PPC_PLTREL24_2,"ax",@progbits
86.Lfoox4:
87
88# CHECK: Disassembly of section .R_PPC_PLTREL24:
89# CHECK: .R_PPC_PLTREL24:
90# CHECK: 11028: 48 00 00 04 b .+4
deps/lld/test/ELF/ppc64-addr16-error.s+1-1
...@@ -5,4 +5,4 @@...@@ -5,4 +5,4 @@
55
6.short sym+655396.short sym+65539
77
8// CHECK: relocation R_PPC64_ADDR16 out of range8// CHECK: relocation R_PPC64_ADDR16 out of range: 65539 is not in [-32768, 32767]
deps/lld/test/ELF/pr34660.s created+25
...@@ -0,0 +1,25 @@
1# REQUIRES: aarch64
2
3# RUN: llvm-mc -filetype=obj -triple=aarch64-linux-none %s -o %t.o
4# RUN: ld.lld --hash-style=sysv -shared %t.o -o %t
5# RUN: llvm-objdump %t -d | FileCheck %s --check-prefix=DISASM
6# RUN: llvm-readobj -elf-output-style=GNU %t -t | FileCheck %s --check-prefix=SYM
7
8# It would be much easier to understand/read this test if llvm-objdump would print
9# the immediates in hex.
10# IMM = hex(65540) = 0x10004
11# PC = 0x10000
12# As the relocation is PC-relative, IMM + PC = 0x20004 which is the VA of the
13# correct symbol.
14
15# DISASM: Disassembly of section .text:
16# DISASM-NEXT: $x.0:
17# DISASM-NEXT: 10000: 28 00 08 58 ldr x8, #65540
18
19# SYM: Symbol table '.symtab'
20# SYM: 0000000000020004 0 NOTYPE LOCAL DEFAULT 5 patatino
21
22 ldr x8, patatino
23 .data
24 .zero 4
25patatino:
deps/lld/test/ELF/pr34872.s created+14
...@@ -0,0 +1,14 @@
1# RUN: llvm-mc %s -filetype=obj -triple=x86_64-pc-linux -o %t.o
2# RUN: llvm-mc %p/Inputs/undefined-error.s -filetype=obj \
3# RUN: -triple=x86_64-pc-linux -o %t2.o
4# RUN: ld.lld -shared %t2.o -o %t2.so
5# RUN: not ld.lld %t2.so %t.o 2>&1 | FileCheck %s
6
7# CHECK: undefined symbol: fmod
8# Check we're not emitting other diagnostics for this symbol.
9# CHECK-NOT: fmod
10
11.global main
12
13main:
14 callq fmod
deps/lld/test/ELF/progname.s+1-1
...@@ -1,6 +1,6 @@...@@ -1,6 +1,6 @@
1// REQUIRES: x861// REQUIRES: x86
2// RUN: llvm-mc -filetype=obj -triple=x86_64-pc-linux %s -o %t.o2// RUN: llvm-mc -filetype=obj -triple=x86_64-pc-linux %s -o %t.o
3// RUN: echo .global __progname > %t2.s3// RUN: echo ".global __progname; .data; .dc.a __progname" > %t2.s
4// RUN: llvm-mc -filetype=obj -triple=x86_64-pc-linux %t2.s -o %t2.o4// RUN: llvm-mc -filetype=obj -triple=x86_64-pc-linux %t2.s -o %t2.o
5// RUN: ld.lld -shared %t2.o -o %t2.so5// RUN: ld.lld -shared %t2.o -o %t2.so
6// RUN: ld.lld -o %t %t.o %t2.so6// RUN: ld.lld -o %t %t.o %t2.so
deps/lld/test/ELF/relocatable-comdat2.s created+35
...@@ -0,0 +1,35 @@
1# REQUIRES: x86
2# RUN: llvm-mc -filetype=obj -triple=x86_64-pc-linux %s -o %t.o
3# RUN: ld.lld -r %t.o -o %t
4# RUN: llvm-readobj -elf-section-groups -s %t | FileCheck %s
5
6## Check .foo was not merged.
7# CHECK: Sections [
8# CHECK: Name: .foo
9# CHECK: Name: .foo
10# CHECK: Name: .foo
11
12# CHECK: Groups {
13# CHECK-NEXT: Group {
14# CHECK-NEXT: Name: .group
15# CHECK-NEXT: Index: 2
16# CHECK-NEXT: Type: COMDAT
17# CHECK-NEXT: Signature: bar
18# CHECK-NEXT: Section(s) in group [
19# CHECK-NEXT: .foo (3)
20# CHECK-NEXT: ]
21# CHECK-NEXT: }
22# CHECK-NEXT: Group {
23# CHECK-NEXT: Name: .group
24# CHECK-NEXT: Index: 4
25# CHECK-NEXT: Type: COMDAT
26# CHECK-NEXT: Signature: zed
27# CHECK-NEXT: Section(s) in group [
28# CHECK-NEXT: .foo (5)
29# CHECK-NEXT: ]
30# CHECK-NEXT: }
31# CHECK-NEXT: }
32
33.section .foo,"axG",@progbits,bar,comdat
34.section .foo,"axG",@progbits,zed,comdat
35.section .foo,"ax",@progbits
deps/lld/test/ELF/relocatable-common.s+4-1
...@@ -30,7 +30,10 @@...@@ -30,7 +30,10 @@
30# DEFCOMM-NEXT: Binding: Global30# DEFCOMM-NEXT: Binding: Global
31# DEFCOMM-NEXT: Type: Object31# DEFCOMM-NEXT: Type: Object
32# DEFCOMM-NEXT: Other: 032# DEFCOMM-NEXT: Other: 0
33# DEFCOMM-NEXT: Section: COMMON (0x2)33# DEFCOMM-NEXT: Section: COMMON
34# DEFCOMM-NEXT: }34# DEFCOMM-NEXT: }
3535
36# RUN: not ld.lld -shared --no-define-common %t1.o -o %t 2>&1 | FileCheck --check-prefix=ERROR %s
37# ERROR: error: -no-define-common not supported in non relocatable output
38
36.comm common,4,439.comm common,4,4
deps/lld/test/ELF/relocatable-compressed-input.s+5-5
...@@ -24,11 +24,11 @@...@@ -24,11 +24,11 @@
24# CHECK-NEXT: AddressAlignment: 124# CHECK-NEXT: AddressAlignment: 1
25# CHECK-NEXT: EntrySize: 125# CHECK-NEXT: EntrySize: 1
26# CHECK-NEXT: SectionData (26# CHECK-NEXT: SectionData (
27# CHECK-NEXT: 0000: {{.*}} |short unsigned i|27# CHECK-NEXT: 0000: {{.*}} |long unsigned in|
28# CHECK-NEXT: 0010: {{.*}} |nt.unsigned int.|28# CHECK-NEXT: 0010: {{.*}} |t.unsigned char.|
29# CHECK-NEXT: 0020: {{.*}} |long unsigned in|29# CHECK-NEXT: 0020: {{.*}} |unsigned int.cha|
30# CHECK-NEXT: 0030: {{.*}} |t.char.unsigned |30# CHECK-NEXT: 0030: {{.*}} |r.short unsigned|
31# CHECK-NEXT: 0040: {{.*}} |char.|31# CHECK-NEXT: 0040: {{.*}} | int.|
32# CHECK-NEXT: )32# CHECK-NEXT: )
33# CHECK-NEXT: }33# CHECK-NEXT: }
3434
deps/lld/test/ELF/relocatable.s+1-1
...@@ -81,7 +81,7 @@...@@ -81,7 +81,7 @@
81# CHECKEXE-NEXT: Version: 181# CHECKEXE-NEXT: Version: 1
82# CHECKEXE-NEXT: Entry: 0x20100082# CHECKEXE-NEXT: Entry: 0x201000
83# CHECKEXE-NEXT: ProgramHeaderOffset: 0x4083# CHECKEXE-NEXT: ProgramHeaderOffset: 0x40
84# CHECKEXE-NEXT: SectionHeaderOffset: 0x11F884# CHECKEXE-NEXT: SectionHeaderOffset: 0x21A0
85# CHECKEXE-NEXT: Flags [85# CHECKEXE-NEXT: Flags [
86# CHECKEXE-NEXT: ]86# CHECKEXE-NEXT: ]
87# CHECKEXE-NEXT: HeaderSize: 6487# CHECKEXE-NEXT: HeaderSize: 64
deps/lld/test/ELF/relocation-b-aarch64.test created+48
...@@ -0,0 +1,48 @@
1# REQUIRES: aarch64
2
3# RUN: yaml2obj %s -o %t.o
4# RUN: ld.lld %t.o -o %t.out
5# RUN: llvm-objdump -d -triple=aarch64-none-linux %t.out | FileCheck %s
6
7# Check that the R_AARCH64_JUMP26 writes the branch opcode as well as the
8# immediate. We use this property to overwrite instructions with a branch.
9
10# CHECK: Disassembly of section .text:
11# CHECK-NEXT: foo:
12# CHECK-NEXT: 20000: 01 00 00 14 b #4
13# CHECK: bar:
14# CHECK-NEXT: 20004: ff ff ff 17 b #-4
15
16!ELF
17FileHeader:
18 Class: ELFCLASS64
19 Data: ELFDATA2LSB
20 Type: ET_REL
21 Machine: EM_AARCH64
22Sections:
23 - Type: SHT_PROGBITS
24 Name: .text
25 Flags: [ SHF_ALLOC, SHF_EXECINSTR ]
26 Content: "0000000000000000"
27 - Type: SHT_RELA
28 Name: .rela.text
29 Link: .symtab
30 Info: .text
31 Relocations:
32 - Offset: 0
33 Symbol: bar
34 Type: R_AARCH64_JUMP26
35 - Offset: 4
36 Symbol: foo
37 Type: R_AARCH64_JUMP26
38
39Symbols:
40 Local:
41 - Type: STT_FUNC
42 Section: .text
43 Name: foo
44 Value: 0
45 - Type: STT_FUNC
46 Section: .text
47 Name: bar
48 Value: 4
deps/lld/test/ELF/relocation-copy-alias.s+5-3
...@@ -1,8 +1,10 @@...@@ -1,8 +1,10 @@
1// REQUIRES: x861// REQUIRES: x86
2// RUN: llvm-mc -filetype=obj -triple=x86_64-pc-linux %s -o %t.o2// RUN: llvm-mc -filetype=obj -triple=x86_64-pc-linux %s -o %t.o
3// RUN: llvm-mc -filetype=obj -triple=x86_64-pc-linux %p/Inputs/relocation-copy-alias.s -o %t2.o3// RUN: llvm-mc -filetype=obj -triple=x86_64-pc-linux %p/Inputs/relocation-copy-alias.s -o %t2.o
4// RUN: ld.lld -shared %t2.o -o %t.so4// RUN: ld.lld --hash-style=sysv -shared %t2.o -o %t.so
5// RUN: ld.lld %t.o %t.so -o %t35// RUN: ld.lld --hash-style=sysv %t.o %t.so -o %t3
6// RUN: llvm-readobj --dyn-symbols -r --expand-relocs %t3 | FileCheck %s
7// RUN: ld.lld --hash-style=sysv --gc-sections %t.o %t.so -o %t3
6// RUN: llvm-readobj --dyn-symbols -r --expand-relocs %t3 | FileCheck %s8// RUN: llvm-readobj --dyn-symbols -r --expand-relocs %t3 | FileCheck %s
79
8.global _start10.global _start
...@@ -61,7 +63,7 @@ movl $5, b2...@@ -61,7 +63,7 @@ movl $5, b2
61// CHECK: Name: b363// CHECK: Name: b3
62// CHECK-NEXT: Value: [[B]]64// CHECK-NEXT: Value: [[B]]
63// CHECK-NEXT: Size: 165// CHECK-NEXT: Size: 1
64// CHECK-NEXT: Binding: Weak66// CHECK-NEXT: Binding: Global
65// CHECK-NEXT: Type: Object (0x1)67// CHECK-NEXT: Type: Object (0x1)
66// CHECK-NEXT: Other: 068// CHECK-NEXT: Other: 0
67// CHECK-NEXT: Section: .bss69// CHECK-NEXT: Section: .bss
deps/lld/test/ELF/relocation-copy-align-common.s+1-1
...@@ -3,7 +3,7 @@...@@ -3,7 +3,7 @@
3# RUN: llvm-mc -filetype=obj -triple=x86_64-pc-linux \3# RUN: llvm-mc -filetype=obj -triple=x86_64-pc-linux \
4# RUN: %p/Inputs/relocation-copy-align-common.s -o %t2.o4# RUN: %p/Inputs/relocation-copy-align-common.s -o %t2.o
5# RUN: ld.lld -shared %t2.o -o %t.so5# RUN: ld.lld -shared %t2.o -o %t.so
6# RUN: ld.lld %t.o %t.so -o %t36# RUN: ld.lld --hash-style=sysv %t.o %t.so -o %t3
7# RUN: llvm-readobj -s -r --expand-relocs %t3 | FileCheck %s7# RUN: llvm-readobj -s -r --expand-relocs %t3 | FileCheck %s
88
9# CHECK: Section {9# CHECK: Section {
deps/lld/test/ELF/relocation-copy-flags.s+1-1
...@@ -3,7 +3,7 @@...@@ -3,7 +3,7 @@
3// RUN: llvm-mc -filetype=obj -triple=x86_64-pc-linux %s -o %t.o3// RUN: llvm-mc -filetype=obj -triple=x86_64-pc-linux %s -o %t.o
4// RUN: llvm-mc -filetype=obj -triple=x86_64-pc-linux %p/Inputs/relocation-copy.s -o %t2.o4// RUN: llvm-mc -filetype=obj -triple=x86_64-pc-linux %p/Inputs/relocation-copy.s -o %t2.o
5// RUN: ld.lld %t2.o -o %t2.so -shared5// RUN: ld.lld %t2.o -o %t2.so -shared
6// RUN: ld.lld %t.o %t2.so -o %t.exe6// RUN: ld.lld --hash-style=sysv %t.o %t2.so -o %t.exe
7// RUN: llvm-readobj -s -section-data -r %t.exe | FileCheck %s7// RUN: llvm-readobj -s -section-data -r %t.exe | FileCheck %s
88
9 .global _start9 .global _start
deps/lld/test/ELF/relocation-copy-relro.s+1-1
...@@ -2,7 +2,7 @@...@@ -2,7 +2,7 @@
2// RUN: llvm-mc -filetype=obj -triple=x86_64-pc-linux %s -o %t.o2// RUN: llvm-mc -filetype=obj -triple=x86_64-pc-linux %s -o %t.o
3// RUN: llvm-mc -filetype=obj -triple=x86_64-pc-linux %p/Inputs/relocation-copy-relro.s -o %t2.o3// RUN: llvm-mc -filetype=obj -triple=x86_64-pc-linux %p/Inputs/relocation-copy-relro.s -o %t2.o
4// RUN: ld.lld -shared %t2.o -o %t.so4// RUN: ld.lld -shared %t2.o -o %t.so
5// RUN: ld.lld %t.o %t.so -o %t35// RUN: ld.lld --hash-style=sysv %t.o %t.so -o %t3
6// RUN: llvm-readobj -program-headers -s -r %t3 | FileCheck %s6// RUN: llvm-readobj -program-headers -s -r %t3 | FileCheck %s
77
8// CHECK: Name: .bss.rel.ro (48)8// CHECK: Name: .bss.rel.ro (48)
deps/lld/test/ELF/relocation-i686.s+1-1
...@@ -1,7 +1,7 @@...@@ -1,7 +1,7 @@
1// RUN: llvm-mc -filetype=obj -triple=i686-pc-linux %s -o %t1// RUN: llvm-mc -filetype=obj -triple=i686-pc-linux %s -o %t
2// RUN: llvm-mc -filetype=obj -triple=i686-unknown-linux %p/Inputs/shared.s -o %t2.o2// RUN: llvm-mc -filetype=obj -triple=i686-unknown-linux %p/Inputs/shared.s -o %t2.o
3// RUN: ld.lld -shared %t2.o -o %t2.so3// RUN: ld.lld -shared %t2.o -o %t2.so
4// RUN: ld.lld %t %t2.so -o %t24// RUN: ld.lld --hash-style=sysv %t %t2.so -o %t2
5// RUN: llvm-readobj -s %t2 | FileCheck --check-prefix=ADDR %s5// RUN: llvm-readobj -s %t2 | FileCheck --check-prefix=ADDR %s
6// RUN: llvm-objdump -d %t2 | FileCheck %s6// RUN: llvm-objdump -d %t2 | FileCheck %s
7// REQUIRES: x867// REQUIRES: x86
deps/lld/test/ELF/relocation-relative-weak.s+1
...@@ -4,6 +4,7 @@...@@ -4,6 +4,7 @@
4# RUN: llvm-readobj -dyn-relocations %t | FileCheck %s4# RUN: llvm-readobj -dyn-relocations %t | FileCheck %s
55
6# CHECK: Dynamic Relocations {6# CHECK: Dynamic Relocations {
7# CHECK-NEXT: 0x2018 R_X86_64_JUMP_SLOT w 0x0
7# CHECK-NEXT: }8# CHECK-NEXT: }
89
9.globl _start10.globl _start
deps/lld/test/ELF/relocation-size-err.s created+12
...@@ -0,0 +1,12 @@
1// REQUIRES: x86
2// RUN: llvm-mc -filetype=obj -triple=x86_64-pc-linux %s -o %t.o
3// RUN: not ld.lld %t.o -o %t.so -shared 2>&1 | FileCheck %s
4
5// CHECK: error: can't create dynamic relocation R_X86_64_SIZE64 against symbol: foo in readonly segment; recompile object files with -fPIC
6
7 .global foo
8foo:
9 .quad 42
10 .size foo, 8
11
12 .quad foo@SIZE
deps/lld/test/ELF/relocation.s+1-1
...@@ -1,7 +1,7 @@...@@ -1,7 +1,7 @@
1// RUN: llvm-mc -filetype=obj -triple=x86_64-pc-linux %s -o %t1// RUN: llvm-mc -filetype=obj -triple=x86_64-pc-linux %s -o %t
2// RUN: llvm-mc -filetype=obj -triple=x86_64-pc-linux %p/Inputs/shared.s -o %t22// RUN: llvm-mc -filetype=obj -triple=x86_64-pc-linux %p/Inputs/shared.s -o %t2
3// RUN: ld.lld %t2 -o %t2.so -shared3// RUN: ld.lld %t2 -o %t2.so -shared
4// RUN: ld.lld %t %t2.so -o %t34// RUN: ld.lld --hash-style=sysv %t %t2.so -o %t3
5// RUN: llvm-readobj -s %t3 | FileCheck --check-prefix=SEC %s5// RUN: llvm-readobj -s %t3 | FileCheck --check-prefix=SEC %s
6// RUN: llvm-objdump -s -d %t3 | FileCheck %s6// RUN: llvm-objdump -s -d %t3 | FileCheck %s
7// REQUIRES: x867// REQUIRES: x86
deps/lld/test/ELF/relro-copyrel-bss-script.s created+40
...@@ -0,0 +1,40 @@
1// REQUIRES: x86
2// RUN: llvm-mc -filetype=obj -triple=x86_64-unknown-linux %p/Inputs/shared.s -o %t.o
3// RUN: llvm-mc -filetype=obj -triple=x86_64-unknown-linux %p/Inputs/copy-in-shared.s -o %t2.o
4// RUN: ld.lld -shared %t.o %t2.o -o %t.so
5
6// A linker script that will map .bss.rel.ro into .bss.
7// RUN: echo "SECTIONS { \
8// RUN: .bss : { *(.bss) *(.bss.*) } \
9// RUN: } " > %t.script
10
11// RUN: llvm-mc -filetype=obj -triple=x86_64-unknown-linux %s -o %t3.o
12// RUN: ld.lld %t3.o %t.so -z relro -o %t --script=%t.script 2>&1
13// RUN: llvm-readobj --program-headers %t | FileCheck %s
14 .section .text, "ax", @progbits
15 .global bar
16 .global foo
17 .global _start
18_start:
19 callq bar
20 // Will produce .bss.rel.ro that will match in .bss, this will lose
21 // the relro property of the copy relocation.
22 .quad foo
23
24 // Non relro bss
25 .bss
26 // make large enough to affect PT_GNU_RELRO MemSize if this was marked
27 // as relro.
28 .space 0x2000
29
30// CHECK: Type: PT_GNU_RELRO (0x6474E552)
31// CHECK-NEXT: Offset:
32// CHECK-NEXT: VirtualAddress:
33// CHECK-NEXT: PhysicalAddress:
34// CHECK-NEXT: FileSize:
35// CHECK-NEXT: MemSize: 4096
36// CHECK-NEXT: Flags [ (0x4)
37// CHECK-NEXT: PF_R (0x4)
38// CHECK-NEXT: ]
39// CHECK-NEXT: Alignment: 1
40// CHECK-NEXT: }
deps/lld/test/ELF/relro-non-contiguous-script-data.s created+25
...@@ -0,0 +1,25 @@
1// REQUIRES: x86
2
3// RUN: echo "SECTIONS { \
4// RUN: .dynamic : { *(.dynamic) } \
5// RUN: .non_ro : { . += 1; } \
6// RUN: .jcr : { *(.jcr) } \
7// RUN: } " > %t.script
8// RUN: llvm-mc -filetype=obj -triple=x86_64-pc-linux %s -o %t.o
9// RUN: not ld.lld --export-dynamic %t.o -o %t --script=%t.script 2>&1 | FileCheck %s
10
11// RUN: echo "SECTIONS { \
12// RUN: .dynamic : { *(.dynamic) } \
13// RUN: .non_ro : { BYTE(1); } \
14// RUN: .jcr : { *(.jcr) } \
15// RUN: } " > %t2.script
16// RUN: not ld.lld --export-dynamic %t.o -o %t --script=%t2.script 2>&1 | FileCheck %s
17
18// CHECK: error: section: .jcr is not contiguous with other relro sections
19
20.global _start
21_start:
22
23 // non-empty relro section
24 .section .jcr, "aw", @progbits
25 .quad 0
deps/lld/test/ELF/relro-non-contiguous.s created+28
...@@ -0,0 +1,28 @@
1// RUN: llvm-mc -filetype=obj -triple=x86_64-unknown-linux %p/Inputs/shared.s -o %t.o
2// RUN: llvm-mc -filetype=obj -triple=x86_64-unknown-linux %p/Inputs/copy-in-shared.s -o %t2.o
3// RUN: ld.lld -shared %t.o %t2.o -o %t.so
4
5// Place the .got.plt (non relro) immediately after .dynamic. This is the
6// reverse order of the non-linker script case. The linker created .bss.rel.ro
7// section will be placed after .got.plt causing the relro to be non-contiguous.
8// RUN: echo "SECTIONS { \
9// RUN: .dynamic : { *(.dynamic) } \
10// RUN: .got.plt : { *(.got.plt) } \
11// RUN: } " > %t.script
12// RUN: llvm-mc -filetype=obj -triple=x86_64-unknown-linux %s -o %t3.o
13
14// Expect error for non-contiguous relro
15// RUN: not ld.lld %t3.o %t.so -z relro -o %t --script=%t.script 2>&1 | FileCheck %s
16// No error when we do not request relro.
17// RUN: ld.lld %t3.o %t.so -z norelro -o %t --script=%t.script
18// REQUIRES: x86
19
20// CHECK: error: section: .bss.rel.ro is not contiguous with other relro sections
21 .section .text, "ax", @progbits
22 .global _start
23 .global bar
24 .global foo
25_start:
26 .quad bar
27 .quad foo
28
deps/lld/test/ELF/relro-omagic.s+1-1
...@@ -1,7 +1,7 @@...@@ -1,7 +1,7 @@
1# RUN: llvm-mc -filetype=obj -triple=x86_64-unknown-linux %s -o %t.o1# RUN: llvm-mc -filetype=obj -triple=x86_64-unknown-linux %s -o %t.o
2# RUN: llvm-mc -filetype=obj -triple=x86_64-unknown-linux %p/Inputs/shared.s -o %t2.o2# RUN: llvm-mc -filetype=obj -triple=x86_64-unknown-linux %p/Inputs/shared.s -o %t2.o
3# RUN: ld.lld -shared %t2.o -o %t2.so -soname relro-omagic.s.tmp2.so3# RUN: ld.lld -shared %t2.o -o %t2.so -soname relro-omagic.s.tmp2.so
4# RUN: ld.lld -N %t.o %t2.so -o %t4# RUN: ld.lld --hash-style=sysv -N %t.o %t2.so -o %t
5# RUN: llvm-objdump -section-headers %t | FileCheck --check-prefix=NORELRO %s5# RUN: llvm-objdump -section-headers %t | FileCheck --check-prefix=NORELRO %s
6# RUN: llvm-readobj --program-headers %t | FileCheck --check-prefix=NOPHDRS %s6# RUN: llvm-readobj --program-headers %t | FileCheck --check-prefix=NOPHDRS %s
77
deps/lld/test/ELF/relro-script.s created+29
...@@ -0,0 +1,29 @@
1// REQUIRES: x86
2// RUN: llvm-mc -filetype=obj -triple=x86_64-unknown-linux %p/Inputs/shared.s -o %t.o
3// RUN: llvm-mc -filetype=obj -triple=x86_64-unknown-linux %p/Inputs/copy-in-shared.s -o %t2.o
4// RUN: ld.lld -shared %t.o %t2.o -o %t.so
5
6// ld.bfd and gold use .data.rel.ro rather than .bss.rel.ro. When a linker
7// script, such as ld.bfd's internal linker script has a .data.rel.ro
8// OutputSection we rename .bss.rel.ro to .data.rel.ro.bss in order to match in
9// .data.rel.ro. This keeps the relro sections contiguous.
10
11// Use the same sections and ordering as the ld.bfd internal linker script.
12// RUN: echo "SECTIONS { \
13// RUN: .data.rel.ro : { *(.data.rel.ro .data.rel.ro.*) } \
14// RUN: .dynamic : { *(.dynamic) } \
15// RUN: .got : { *(.got) } \
16// RUN: .got.plt : { *(.got.plt) } \
17// RUN: } " > %t.script
18// RUN: llvm-mc -filetype=obj -triple=x86_64-unknown-linux %s -o %t3.o
19// RUN: ld.lld %t3.o %t.so -o %t --script=%t.script --print-map | FileCheck %s
20
21// CHECK: .data.rel.ro
22// CHECK-NEXT: <internal>:(.bss.rel.ro)
23 .section .text, "ax", @progbits
24 .global _start
25 .global bar
26 .global foo
27_start:
28 .quad bar
29 .quad foo
deps/lld/test/ELF/reproduce-thin-archive.s+6
...@@ -5,11 +5,17 @@...@@ -5,11 +5,17 @@
5# RUN: llvm-mc -filetype=obj -triple=x86_64-pc-linux %s -o %t.dir/foo.o5# RUN: llvm-mc -filetype=obj -triple=x86_64-pc-linux %s -o %t.dir/foo.o
6# RUN: cd %t.dir6# RUN: cd %t.dir
7# RUN: llvm-ar --format=gnu rcT foo.a foo.o7# RUN: llvm-ar --format=gnu rcT foo.a foo.o
8
8# RUN: ld.lld -m elf_x86_64 foo.a -o bar --reproduce repro.tar9# RUN: ld.lld -m elf_x86_64 foo.a -o bar --reproduce repro.tar
9# RUN: tar xf repro.tar10# RUN: tar xf repro.tar
10# RUN: diff foo.a repro/%:t.dir/foo.a11# RUN: diff foo.a repro/%:t.dir/foo.a
11# RUN: diff foo.o repro/%:t.dir/foo.o12# RUN: diff foo.o repro/%:t.dir/foo.o
1213
14# RUN: ld.lld -m elf_x86_64 --whole-archive foo.a -o bar --reproduce repro2.tar
15# RUN: tar xf repro2.tar
16# RUN: diff foo.a repro2/%:t.dir/foo.a
17# RUN: diff foo.o repro2/%:t.dir/foo.o
18
13.globl _start19.globl _start
14_start:20_start:
15 nop21 nop
deps/lld/test/ELF/reproduce.s+20-11
...@@ -33,27 +33,36 @@...@@ -33,27 +33,36 @@
33# RUN: echo "{};" > dyn33# RUN: echo "{};" > dyn
34# RUN: echo > file34# RUN: echo > file
35# RUN: echo > file235# RUN: echo > file2
36# RUN: echo "_start" > order
37# RUN: mkdir "sysroot with spaces"
36# RUN: llvm-mc -filetype=obj -triple=x86_64-unknown-linux %s -o 'foo bar'38# RUN: llvm-mc -filetype=obj -triple=x86_64-unknown-linux %s -o 'foo bar'
37# RUN: ld.lld --reproduce repro2.tar 'foo bar' -L"foo bar" -Lfile -Tfile2 \39# RUN: ld.lld --reproduce repro2.tar 'foo bar' -L"foo bar" -Lfile -Tfile2 \
38# RUN: --dynamic-list dyn -rpath file --script=file --version-script ver \40# RUN: --dynamic-list dyn -rpath file --script=file --symbol-ordering-file order \
39# RUN: --dynamic-linker "some unusual/path" -soname 'foo bar' -soname='foo bar'41# RUN: --sysroot "sysroot with spaces" --sysroot="sysroot with spaces" \
42# RUN: --version-script ver --dynamic-linker "some unusual/path" -soname 'foo bar' \
43# RUN: -soname='foo bar'
40# RUN: tar xf repro2.tar44# RUN: tar xf repro2.tar
41# RUN: FileCheck %s --check-prefix=RSP2 < repro2/response.txt45# RUN: FileCheck %s --check-prefix=RSP2 < repro2/response.txt
46# RSP2: --chroot .
42# RSP2: "{{.*}}foo bar"47# RSP2: "{{.*}}foo bar"
43# RSP2-NEXT: -L "{{.*}}foo bar"48# RSP2-NEXT: --library-path "[[BASEDIR:.+]]/foo bar"
44# RSP2-NEXT: -L {{.+}}file49# RSP2-NEXT: --library-path [[BASEDIR]]/file
45# RSP2-NEXT: --script {{.+}}file250# RSP2-NEXT: --script [[BASEDIR]]/file2
46# RSP2-NEXT: --dynamic-list {{.+}}dyn51# RSP2-NEXT: --dynamic-list [[BASEDIR]]/dyn
47# RSP2-NEXT: -rpath {{.+}}file52# RSP2-NEXT: -rpath [[BASEDIR]]/file
48# RSP2-NEXT: --script {{.+}}file53# RSP2-NEXT: --script [[BASEDIR]]/file
49# RSP2-NEXT: --version-script [[PATH:.*]]ver54# RSP2-NEXT: --symbol-ordering-file [[BASEDIR]]/order
55# RSP2-NEXT: --sysroot "[[BASEDIR]]/sysroot with spaces"
56# RSP2-NEXT: --sysroot "[[BASEDIR]]/sysroot with spaces"
57# RSP2-NEXT: --version-script [[BASEDIR]]/ver
50# RSP2-NEXT: --dynamic-linker "some unusual/path"58# RSP2-NEXT: --dynamic-linker "some unusual/path"
51# RSP2-NEXT: -soname="foo bar"59# RSP2-NEXT: -soname "foo bar"
52# RSP2-NEXT: -soname="foo bar"60# RSP2-NEXT: -soname "foo bar"
5361
54# RUN: tar tf repro2.tar | FileCheck %s62# RUN: tar tf repro2.tar | FileCheck %s
55# CHECK: repro2/response.txt63# CHECK: repro2/response.txt
56# CHECK-NEXT: repro2/version.txt64# CHECK-NEXT: repro2/version.txt
65# CHECK-NEXT: repro2/{{.*}}/order
57# CHECK-NEXT: repro2/{{.*}}/dyn66# CHECK-NEXT: repro2/{{.*}}/dyn
58# CHECK-NEXT: repro2/{{.*}}/ver67# CHECK-NEXT: repro2/{{.*}}/ver
59# CHECK-NEXT: repro2/{{.*}}/foo bar68# CHECK-NEXT: repro2/{{.*}}/foo bar
deps/lld/test/ELF/resolution-end.s+1-1
...@@ -1,7 +1,7 @@...@@ -1,7 +1,7 @@
1# RUN: llvm-mc -filetype=obj -triple=x86_64-pc-linux %s -o %t1.o1# RUN: llvm-mc -filetype=obj -triple=x86_64-pc-linux %s -o %t1.o
2# RUN: llvm-mc -filetype=obj -triple=x86_64-pc-linux %p/Inputs/resolution-end.s -o %t2.o2# RUN: llvm-mc -filetype=obj -triple=x86_64-pc-linux %p/Inputs/resolution-end.s -o %t2.o
3# RUN: ld.lld -shared -o %t2.so %t2.o3# RUN: ld.lld -shared -o %t2.so %t2.o
4# RUN: ld.lld %t1.o %t2.so -o %t4# RUN: ld.lld --hash-style=sysv %t1.o %t2.so -o %t
5# RUN: llvm-readobj -t -s -section-data %t | FileCheck %s5# RUN: llvm-readobj -t -s -section-data %t | FileCheck %s
6# REQUIRES: x866# REQUIRES: x86
77
deps/lld/test/ELF/retain-symbols-file.s+2-2
...@@ -2,11 +2,11 @@...@@ -2,11 +2,11 @@
2# RUN: llvm-mc -filetype=obj -triple=x86_64-pc-linux %s -o %t2# RUN: llvm-mc -filetype=obj -triple=x86_64-pc-linux %s -o %t
3# RUN: echo "bar" > %t_retain.txt3# RUN: echo "bar" > %t_retain.txt
4# RUN: echo "foo" >> %t_retain.txt4# RUN: echo "foo" >> %t_retain.txt
5# RUN: ld.lld -shared --retain-symbols-file=%t_retain.txt %t -o %t25# RUN: ld.lld --hash-style=sysv -shared --retain-symbols-file=%t_retain.txt %t -o %t2
6# RUN: llvm-readobj --dyn-symbols %t2 | FileCheck %s6# RUN: llvm-readobj --dyn-symbols %t2 | FileCheck %s
77
8## Check separate form.8## Check separate form.
9# RUN: ld.lld -shared --retain-symbols-file %t_retain.txt %t -o %t29# RUN: ld.lld --hash-style=sysv -shared --retain-symbols-file %t_retain.txt %t -o %t2
10# RUN: llvm-readobj --dyn-symbols %t2 | FileCheck %s10# RUN: llvm-readobj --dyn-symbols %t2 | FileCheck %s
1111
12# CHECK: DynamicSymbols [12# CHECK: DynamicSymbols [
deps/lld/test/ELF/section-metadata-err.s+1-1
...@@ -3,7 +3,7 @@...@@ -3,7 +3,7 @@
3# RUN: llvm-mc -filetype=obj -triple=x86_64-pc-linux %s -o %t.o3# RUN: llvm-mc -filetype=obj -triple=x86_64-pc-linux %s -o %t.o
4# RUN: not ld.lld %t.o -o %t 2>&1 | FileCheck %s4# RUN: not ld.lld %t.o -o %t 2>&1 | FileCheck %s
55
6# CHECK: error: Merge and .eh_frame sections are not supported with SHF_LINK_ORDER {{.*}}section-metadata-err.s.tmp.o:(.foo)6# CHECK: error: a section with SHF_LINK_ORDER should not refer a non-regular section: {{.*}}section-metadata-err.s.tmp.o:(.foo)
77
8.global _start8.global _start
9_start:9_start:
deps/lld/test/ELF/segments.s+5
...@@ -1,7 +1,10 @@...@@ -1,7 +1,10 @@
1# REQUIRES: x861# REQUIRES: x86
2# RUN: llvm-mc -filetype=obj -triple=x86_64-unknown-linux %s -o %t2# RUN: llvm-mc -filetype=obj -triple=x86_64-unknown-linux %s -o %t
3
3# RUN: ld.lld %t -o %t14# RUN: ld.lld %t -o %t1
4# RUN: llvm-readobj --program-headers %t1 | FileCheck --check-prefix=ROSEGMENT %s5# RUN: llvm-readobj --program-headers %t1 | FileCheck --check-prefix=ROSEGMENT %s
6# RUN: ld.lld --omagic --no-omagic %t -o %t1
7# RUN: llvm-readobj --program-headers %t1 | FileCheck --check-prefix=ROSEGMENT %s
58
6# ROSEGMENT: ProgramHeader {9# ROSEGMENT: ProgramHeader {
7# ROSEGMENT: Type: PT_LOAD10# ROSEGMENT: Type: PT_LOAD
...@@ -76,6 +79,8 @@...@@ -76,6 +79,8 @@
7679
77# RUN: ld.lld -N %t -o %t380# RUN: ld.lld -N %t -o %t3
78# RUN: llvm-readobj --program-headers %t3 | FileCheck --check-prefix=OMAGIC %s81# RUN: llvm-readobj --program-headers %t3 | FileCheck --check-prefix=OMAGIC %s
82# RUN: ld.lld --omagic %t -o %t3
83# RUN: llvm-readobj --program-headers %t3 | FileCheck --check-prefix=OMAGIC %s
7984
80# OMAGIC: ProgramHeader {85# OMAGIC: ProgramHeader {
81# OMAGIC: Type: PT_LOAD86# OMAGIC: Type: PT_LOAD
deps/lld/test/ELF/shared-lazy.s created+16
...@@ -0,0 +1,16 @@
1// RUN: llvm-mc -filetype=obj -triple=x86_64-pc-linux %s -o %t1.o
2// RUN: rm -f %t1.a
3// RUN: llvm-ar rc %t1.a %t1.o
4// RUN: ld.lld %t1.o -o %t1.so -shared
5// RUN: echo ".global foo" > %t2.s
6// RUN: llvm-mc -filetype=obj -triple=x86_64-pc-linux %t2.s -o %t2.o
7// RUN: ld.lld %t1.a %t1.so %t2.o -o %t.so -shared
8// RUN: llvm-readelf --dyn-symbols %t.so | FileCheck %s
9
10// Test that 'foo' from %t1.so is used and we don't fetch a member
11// from the archive.
12
13// CHECK: 0000000000000000 0 NOTYPE GLOBAL DEFAULT UND foo
14
15.global foo
16foo:
deps/lld/test/ELF/shared.s+3-3
...@@ -1,10 +1,10 @@...@@ -1,10 +1,10 @@
1// RUN: llvm-mc -filetype=obj -triple=i686-unknown-linux %s -o %t.o1// RUN: llvm-mc -filetype=obj -triple=i686-unknown-linux %s -o %t.o
2// RUN: llvm-mc -filetype=obj -triple=i686-unknown-linux %p/Inputs/shared.s -o %t2.o2// RUN: llvm-mc -filetype=obj -triple=i686-unknown-linux %p/Inputs/shared.s -o %t2.o
3// RUN: ld.lld -shared %t2.o -o %t2.so3// RUN: ld.lld --hash-style=sysv -shared %t2.o -o %t2.so
4// RUN: llvm-readobj -s %t2.so | FileCheck --check-prefix=SO %s4// RUN: llvm-readobj -s %t2.so | FileCheck --check-prefix=SO %s
5// RUN: ld.lld -dynamic-linker /lib64/ld-linux-x86-64.so.2 -rpath foo -rpath bar --export-dynamic %t.o %t2.so -o %t5// RUN: ld.lld --hash-style=sysv -dynamic-linker /lib64/ld-linux-x86-64.so.2 -rpath foo -rpath bar --export-dynamic %t.o %t2.so -o %t
6// RUN: llvm-readobj --program-headers --dynamic-table -t -s -dyn-symbols -section-data -hash-table %t | FileCheck %s6// RUN: llvm-readobj --program-headers --dynamic-table -t -s -dyn-symbols -section-data -hash-table %t | FileCheck %s
7// RUN: ld.lld %t.o %t2.so %t2.so -o %t27// RUN: ld.lld --hash-style=sysv %t.o %t2.so %t2.so -o %t2
8// RUN: llvm-readobj -dyn-symbols %t2 | FileCheck --check-prefix=DONT_EXPORT %s8// RUN: llvm-readobj -dyn-symbols %t2 | FileCheck --check-prefix=DONT_EXPORT %s
9// REQUIRES: x869// REQUIRES: x86
1010
deps/lld/test/ELF/shlib-undefined-shared.s created+15
...@@ -0,0 +1,15 @@
1# REQUIRES: x86
2
3# RUN: llvm-mc -filetype=obj -triple=x86_64-linux-gnu -o %t1.o %S/Inputs/shlib-undefined-ref.s
4# RUN: ld.lld -shared -o %t1.so %t1.o
5
6# RUN: llvm-mc -filetype=obj -triple=x86_64-linux-gnu -o %t2.o %s
7# RUN: echo "{ local: *; };" > %t.script
8# RUN: ld.lld -shared -version-script %t.script -o %t2.so %t2.o %t1.so
9# RUN: llvm-nm -g %t2.so | FileCheck -allow-empty %s
10
11# CHECK-NOT: should_not_be_exported
12
13.globl should_not_be_exported
14should_not_be_exported:
15 ret
deps/lld/test/ELF/silent-ignore.test created+20
...@@ -0,0 +1,20 @@
1RUN: ld.lld --version \
2RUN: -allow-shlib-undefined \
3RUN: -cref \
4RUN: -g \
5RUN: -no-add-needed \
6RUN: -no-allow-shlib-undefined \
7RUN: -no-copy-dt-needed-entries \
8RUN: -no-ctors-in-init-array \
9RUN: -no-keep-memory \
10RUN: -no-warn-common \
11RUN: -no-warn-mismatch \
12RUN: -sort-common \
13RUN: -stats \
14RUN: -warn-execstack \
15RUN: -warn-once \
16RUN: -warn-shared-textrel \
17RUN: -EB \
18RUN: -EL \
19RUN: -Qy
20RUN: not ld.lld --version --not-an-ignored-argument
deps/lld/test/ELF/sort-norosegment.s+1-1
...@@ -1,7 +1,7 @@...@@ -1,7 +1,7 @@
1# REQUIRES: x861# REQUIRES: x86
2# RUN: llvm-mc -filetype=obj -triple=x86_64-pc-linux %s -o %t2# RUN: llvm-mc -filetype=obj -triple=x86_64-pc-linux %s -o %t
33
4# RUN: ld.lld -no-rosegment -o %t1 %t -shared4# RUN: ld.lld --hash-style=sysv -no-rosegment -o %t1 %t -shared
5# RUN: llvm-readobj -elf-output-style=GNU -s %t1 | FileCheck %s5# RUN: llvm-readobj -elf-output-style=GNU -s %t1 | FileCheck %s
66
7# CHECK: .text {{.*}} AX7# CHECK: .text {{.*}} AX
deps/lld/test/ELF/startstop-gccollect.s+9-3
...@@ -11,21 +11,27 @@...@@ -11,21 +11,27 @@
11# RUN: ld.lld %t --gc-sections -o %tout11# RUN: ld.lld %t --gc-sections -o %tout
12# RUN: llvm-objdump -d %tout | FileCheck -check-prefix=DISASM %s12# RUN: llvm-objdump -d %tout | FileCheck -check-prefix=DISASM %s
1313
14# RUN: echo ".global __start_foo; __start_foo:" > %t2.s
15# RUN: llvm-mc -filetype=obj -triple=x86_64-unknown-linux %t2.s -o %t2.o
16# RUN: ld.lld -shared %t2.o -o %t2.so
17# RUN: ld.lld %t --gc-sections -o %tout %t2.so
18# RUN: llvm-objdump -d %tout | FileCheck -check-prefix=DISASM %s
19
14# DISASM: _start:20# DISASM: _start:
15# DISASM-NEXT: 201000: e8 05 00 00 00 callq 5 <__start_foo>21# DISASM-NEXT: 201000: e8 05 00 00 00 callq 5 <__start_foo>
16# DISASM-NEXT: 201005: e8 01 00 00 00 callq 1 <__start_bar>22# DISASM-NEXT: 201005: e8 02 00 00 00 callq 2 <__stop_bar>
17# DISASM-NEXT: Disassembly of section foo:23# DISASM-NEXT: Disassembly of section foo:
18# DISASM-NEXT: __start_foo:24# DISASM-NEXT: __start_foo:
19# DISASM-NEXT: 20100a: 90 nop25# DISASM-NEXT: 20100a: 90 nop
20# DISASM-NEXT: Disassembly of section bar:26# DISASM-NEXT: Disassembly of section bar:
21# DISASM-NEXT: __start_bar:27# DISASM-NEXT: bar:
22# DISASM-NEXT: 20100b: 90 nop28# DISASM-NEXT: 20100b: 90 nop
2329
24.global _start30.global _start
25.text31.text
26_start:32_start:
27 callq __start_foo33 callq __start_foo
28 callq __start_bar34 callq __stop_bar
2935
30.section foo,"ax"36.section foo,"ax"
31 nop37 nop
deps/lld/test/ELF/startstop.s+1-1
...@@ -1,6 +1,6 @@...@@ -1,6 +1,6 @@
1// REQUIRES: x861// REQUIRES: x86
2// RUN: llvm-mc -filetype=obj -triple=x86_64-unknown-linux %s -o %t2// RUN: llvm-mc -filetype=obj -triple=x86_64-unknown-linux %s -o %t
3// RUN: ld.lld %t -o %tout -shared3// RUN: ld.lld --hash-style=sysv %t -o %tout -shared
4// RUN: llvm-objdump -d %tout | FileCheck -check-prefix=DISASM %s4// RUN: llvm-objdump -d %tout | FileCheck -check-prefix=DISASM %s
5// RUN: llvm-readobj -symbols -r %tout | FileCheck -check-prefix=SYMBOL %s5// RUN: llvm-readobj -symbols -r %tout | FileCheck -check-prefix=SYMBOL %s
66
deps/lld/test/ELF/string-gc.s+2-2
...@@ -14,7 +14,7 @@...@@ -14,7 +14,7 @@
14// CHECK-NEXT: }14// CHECK-NEXT: }
15// CHECK-NEXT: Symbol {15// CHECK-NEXT: Symbol {
16// CHECK-NEXT: Name: s316// CHECK-NEXT: Name: s3
17// CHECK-NEXT: Value: 0x20012517// CHECK-NEXT: Value: 0x200120
18// CHECK-NEXT: Size: 018// CHECK-NEXT: Size: 0
19// CHECK-NEXT: Binding: Local (0x0)19// CHECK-NEXT: Binding: Local (0x0)
20// CHECK-NEXT: Type: Object (0x1)20// CHECK-NEXT: Type: Object (0x1)
...@@ -23,7 +23,7 @@...@@ -23,7 +23,7 @@
23// CHECK-NEXT: }23// CHECK-NEXT: }
24// CHECK-NEXT: Symbol {24// CHECK-NEXT: Symbol {
25// CHECK-NEXT: Name: s125// CHECK-NEXT: Name: s1
26// CHECK-NEXT: Value: 0x20012026// CHECK-NEXT: Value: 0x200125
27// CHECK-NEXT: Size: 027// CHECK-NEXT: Size: 0
28// CHECK-NEXT: Binding: Local (0x0)28// CHECK-NEXT: Binding: Local (0x0)
29// CHECK-NEXT: Type: Object (0x1)29// CHECK-NEXT: Type: Object (0x1)
deps/lld/test/ELF/strip-debug.s+8-19
...@@ -1,25 +1,14 @@...@@ -1,25 +1,14 @@
1# REQUIRES: x861# REQUIRES: x86
22# RUN: llvm-mc -filetype=obj -triple=x86_64-unknown-linux %s -o %t
3# RUN: llvm-mc -filetype=obj -triple=x86_64-unknown-linux -g %s -o %t
4# RUN: ld.lld %t -o %t2
5# RUN: llvm-readobj -sections -symbols %t2 | FileCheck -check-prefix=DEFAULT %s
6# RUN: ld.lld %t -o %t2 --strip-debug3# RUN: ld.lld %t -o %t2 --strip-debug
7# RUN: llvm-readobj -sections -symbols %t2 | FileCheck -check-prefix=STRIP %s4# RUN: llvm-readobj -sections %t2 | FileCheck %s
8# RUN: ld.lld %t -o %t2 -S5# RUN: ld.lld %t -o %t2 -S
9# RUN: llvm-readobj -sections -symbols %t2 | FileCheck -check-prefix=STRIP %s6# RUN: llvm-readobj -sections %t2 | FileCheck %s
10# RUN: ld.lld %t -o %t2 --strip-all7# RUN: ld.lld %t -o %t2 --strip-all
11# RUN: llvm-readobj -sections -symbols %t2 | FileCheck -check-prefix=STRIP %s8# RUN: llvm-readobj -sections %t2 | FileCheck %s
12
13# DEFAULT: Name: .debug_info
14# DEFAULT: Name: .debug_abbrev
15# DEFAULT: Name: .debug_aranges
16# DEFAULT: Name: .debug_line
179
18# STRIP-NOT: Name: .debug_info10# CHECK-NOT: Foo
19# STRIP-NOT: Name: .debug_abbrev11# CHECK-NOT: Bar
20# STRIP-NOT: Name: .debug_aranges
21# STRIP-NOT: Name: .debug_line
2212
23.globl _start13.section .debug_Foo,"",@progbits
24_start:14.section .zdebug_Bar,"",@progbits
25 ret
deps/lld/test/ELF/symbol-ordering-file2.s created+21
...@@ -0,0 +1,21 @@
1# REQUIRES: x86
2# RUN: llvm-mc -filetype=obj -triple=x86_64-pc-linux %s -o %t.o
3# RUN: echo "bar" > %t.order
4# RUN: ld.lld --symbol-ordering-file %t.order -shared %t.o -o %t.so
5# RUN: llvm-nm %t.so | FileCheck %s
6
7# CHECK: 0000000000002000 d _DYNAMIC
8# CHECK-NEXT: 0000000000001000 T bar
9# CHECK-NEXT: 0000000000001004 T foo
10
11 .section .text.foo,"ax",@progbits
12 .align 4
13 .global foo
14foo:
15 retq
16
17 .section .text.bar,"ax",@progbits
18 .align 4
19 .global bar
20bar:
21 retq
deps/lld/test/ELF/synthetic-got.s+2-2
...@@ -1,7 +1,7 @@...@@ -1,7 +1,7 @@
1# REQUIRES: x861# REQUIRES: x86
2# RUN: llvm-mc -filetype=obj -triple=x86_64-unknown-linux %s -o %t.o2# RUN: llvm-mc -filetype=obj -triple=x86_64-unknown-linux %s -o %t.o
3# RUN: echo "SECTIONS { }" > %t0.script3# RUN: echo "SECTIONS { }" > %t0.script
4# RUN: ld.lld -shared %t.o -o %t0.out --script %t0.script4# RUN: ld.lld --hash-style=sysv -shared %t.o -o %t0.out --script %t0.script
5# RUN: llvm-objdump -section-headers %t0.out | FileCheck %s --check-prefix=GOT5# RUN: llvm-objdump -section-headers %t0.out | FileCheck %s --check-prefix=GOT
6# RUN: llvm-objdump -s -section=.got -section=.got.plt %t0.out \6# RUN: llvm-objdump -s -section=.got -section=.got.plt %t0.out \
7# RUN: | FileCheck %s --check-prefix=GOTDATA7# RUN: | FileCheck %s --check-prefix=GOTDATA
...@@ -16,7 +16,7 @@...@@ -16,7 +16,7 @@
16# GOTDATA-NEXT: 01d0 00000000 0000000016# GOTDATA-NEXT: 01d0 00000000 00000000
1717
18# RUN: echo "SECTIONS { .mygot : { *(.got) *(.got.plt) } }" > %t1.script18# RUN: echo "SECTIONS { .mygot : { *(.got) *(.got.plt) } }" > %t1.script
19# RUN: ld.lld -shared %t.o -o %t1.out --script %t1.script19# RUN: ld.lld --hash-style=sysv -shared %t.o -o %t1.out --script %t1.script
20# RUN: llvm-objdump -section-headers %t1.out | FileCheck %s --check-prefix=MYGOT20# RUN: llvm-objdump -section-headers %t1.out | FileCheck %s --check-prefix=MYGOT
21# RUN: llvm-objdump -s -section=.mygot %t1.out | FileCheck %s --check-prefix=MYGOTDATA21# RUN: llvm-objdump -s -section=.mygot %t1.out | FileCheck %s --check-prefix=MYGOTDATA
2222
deps/lld/test/ELF/sysroot.s+2
...@@ -28,6 +28,8 @@...@@ -28,6 +28,8 @@
28// Should substitute SysRoot if specified28// Should substitute SysRoot if specified
29// RUN: ld.lld -o %t/r %t/m.o --sysroot=%t -L=lib -l:libls.a29// RUN: ld.lld -o %t/r %t/m.o --sysroot=%t -L=lib -l:libls.a
30// RUN: ld.lld -o %t/r %t/m.o --sysroot=%t -L=/lib -l:libls.a30// RUN: ld.lld -o %t/r %t/m.o --sysroot=%t -L=/lib -l:libls.a
31// Check alias.
32// RUN: ld.lld -o %t/r %t/m.o --sysroot %t -L=lib -l:libls.a
3133
32// Should not substitute SysRoot if the directory name does not start with '='34// Should not substitute SysRoot if the directory name does not start with '='
33// RUN: not ld.lld -o %t/r %r/m.o --sysroot=%t -Llib -l:libls.a35// RUN: not ld.lld -o %t/r %r/m.o --sysroot=%t -Llib -l:libls.a
deps/lld/test/ELF/sysv-hash-no-rosegment.s created+13
...@@ -0,0 +1,13 @@
1# REQUIRES: x86
2# RUN: llvm-mc -filetype=obj -triple=x86_64-pc-linux %s -o %t.o
3# RUN: ld.lld -shared --no-rosegment -o %t %t.o
4# RUN: llvm-readobj -hash-table %t | FileCheck %s
5
6# CHECK: HashTable {
7# CHECK-NEXT: Num Buckets: 2
8# CHECK-NEXT: Num Chains: 2
9# CHECK-NEXT: Buckets: [1, 0]
10# CHECK-NEXT: Chains: [0, 0]
11# CHECK-NEXT: }
12
13callq undef@PLT
deps/lld/test/ELF/tls-dynamic-i686.s+1-1
...@@ -1,6 +1,6 @@...@@ -1,6 +1,6 @@
1// REQUIRES: x861// REQUIRES: x86
2// RUN: llvm-mc -filetype=obj -triple=i686-pc-linux %s -o %t2// RUN: llvm-mc -filetype=obj -triple=i686-pc-linux %s -o %t
3// RUN: ld.lld -shared %t -o %tout3// RUN: ld.lld --hash-style=sysv -shared %t -o %tout
4// RUN: llvm-readobj -sections -relocations %tout | FileCheck %s4// RUN: llvm-readobj -sections -relocations %tout | FileCheck %s
5// RUN: llvm-objdump -d %tout | FileCheck %s --check-prefix=DIS5// RUN: llvm-objdump -d %tout | FileCheck %s --check-prefix=DIS
66
deps/lld/test/ELF/tls-dynamic.s+1-1
...@@ -1,6 +1,6 @@...@@ -1,6 +1,6 @@
1// REQUIRES: x861// REQUIRES: x86
2// RUN: llvm-mc -filetype=obj -triple=x86_64-unknown-linux %s -o %t2// RUN: llvm-mc -filetype=obj -triple=x86_64-unknown-linux %s -o %t
3// RUN: ld.lld -shared %t -o %tout3// RUN: ld.lld --hash-style=sysv -shared %t -o %tout
4// RUN: llvm-readobj -sections -relocations %tout | FileCheck %s4// RUN: llvm-readobj -sections -relocations %tout | FileCheck %s
5// RUN: llvm-objdump -d %tout | FileCheck %s --check-prefix=DIS5// RUN: llvm-objdump -d %tout | FileCheck %s --check-prefix=DIS
66
deps/lld/test/ELF/tls-got.s+1-1
...@@ -1,7 +1,7 @@...@@ -1,7 +1,7 @@
1// RUN: llvm-mc -filetype=obj -triple=x86_64-unknown-linux %s -o %t1.o1// RUN: llvm-mc -filetype=obj -triple=x86_64-unknown-linux %s -o %t1.o
2// RUN: llvm-mc -filetype=obj -triple=x86_64-unknown-linux %p/Inputs/tls-got.s -o %t2.o2// RUN: llvm-mc -filetype=obj -triple=x86_64-unknown-linux %p/Inputs/tls-got.s -o %t2.o
3// RUN: ld.lld -shared %t2.o -o %t2.so3// RUN: ld.lld -shared %t2.o -o %t2.so
4// RUN: ld.lld -e main %t1.o %t2.so -o %t34// RUN: ld.lld --hash-style=sysv -e main %t1.o %t2.so -o %t3
5// RUN: llvm-readobj -s -r %t3 | FileCheck %s5// RUN: llvm-readobj -s -r %t3 | FileCheck %s
6// RUN: llvm-objdump -d %t3 | FileCheck --check-prefix=DISASM %s6// RUN: llvm-objdump -d %t3 | FileCheck --check-prefix=DISASM %s
77
deps/lld/test/ELF/tls-i686.s+1-1
...@@ -1,7 +1,7 @@...@@ -1,7 +1,7 @@
1// REQUIRES: x861// REQUIRES: x86
2// RUN: llvm-mc -filetype=obj -triple=i686-pc-linux %s -o %t2// RUN: llvm-mc -filetype=obj -triple=i686-pc-linux %s -o %t
3// RUN: ld.lld %t -o %tout3// RUN: ld.lld %t -o %tout
4// RUN: ld.lld %t -shared -o %tsharedout4// RUN: ld.lld --hash-style=sysv %t -shared -o %tsharedout
5// RUN: llvm-objdump -d %tout | FileCheck %s --check-prefix=DIS5// RUN: llvm-objdump -d %tout | FileCheck %s --check-prefix=DIS
6// RUN: llvm-readobj -r %tout | FileCheck %s --check-prefix=RELOC6// RUN: llvm-readobj -r %tout | FileCheck %s --check-prefix=RELOC
7// RUN: llvm-objdump -d %tsharedout | FileCheck %s --check-prefix=DISSHARED7// RUN: llvm-objdump -d %tsharedout | FileCheck %s --check-prefix=DISSHARED
deps/lld/test/ELF/tls-initial-exec-local.s+1-1
...@@ -1,6 +1,6 @@...@@ -1,6 +1,6 @@
1// REQUIRES: x861// REQUIRES: x86
2// RUN: llvm-mc -filetype=obj -triple=x86_64-pc-linux %s -o %t.o2// RUN: llvm-mc -filetype=obj -triple=x86_64-pc-linux %s -o %t.o
3// RUN: ld.lld -shared %t.o -o %t3// RUN: ld.lld --hash-style=sysv -shared %t.o -o %t
4// RUN: llvm-readobj -r -s %t | FileCheck %s4// RUN: llvm-readobj -r -s %t | FileCheck %s
5// RUN: llvm-objdump -d %t | FileCheck --check-prefix=DISASM %s5// RUN: llvm-objdump -d %t | FileCheck --check-prefix=DISASM %s
66
deps/lld/test/ELF/tls-opt-gdie.s+1-1
...@@ -1,7 +1,7 @@...@@ -1,7 +1,7 @@
1// RUN: llvm-mc -filetype=obj -triple=x86_64-unknown-linux %s -o %t.o1// RUN: llvm-mc -filetype=obj -triple=x86_64-unknown-linux %s -o %t.o
2// RUN: llvm-mc -filetype=obj -triple=x86_64-unknown-linux %p/Inputs/tls-opt-gdie.s -o %tso.o2// RUN: llvm-mc -filetype=obj -triple=x86_64-unknown-linux %p/Inputs/tls-opt-gdie.s -o %tso.o
3// RUN: ld.lld -shared %tso.o -o %t.so3// RUN: ld.lld -shared %tso.o -o %t.so
4// RUN: ld.lld %t.o %t.so -o %t14// RUN: ld.lld --hash-style=sysv %t.o %t.so -o %t1
5// RUN: llvm-readobj -s -r %t1 | FileCheck --check-prefix=RELOC %s5// RUN: llvm-readobj -s -r %t1 | FileCheck --check-prefix=RELOC %s
6// RUN: llvm-objdump -d %t1 | FileCheck --check-prefix=DISASM %s6// RUN: llvm-objdump -d %t1 | FileCheck --check-prefix=DISASM %s
77
deps/lld/test/ELF/tls-opt-gdiele-i686.s+1-1
...@@ -1,7 +1,7 @@...@@ -1,7 +1,7 @@
1// RUN: llvm-mc -filetype=obj -triple=i686-pc-linux %p/Inputs/tls-opt-gdiele-i686.s -o %tso.o1// RUN: llvm-mc -filetype=obj -triple=i686-pc-linux %p/Inputs/tls-opt-gdiele-i686.s -o %tso.o
2// RUN: llvm-mc -filetype=obj -triple=i686-pc-linux %s -o %t.o2// RUN: llvm-mc -filetype=obj -triple=i686-pc-linux %s -o %t.o
3// RUN: ld.lld -shared %tso.o -o %tso3// RUN: ld.lld -shared %tso.o -o %tso
4// RUN: ld.lld %t.o %tso -o %tout4// RUN: ld.lld --hash-style=sysv %t.o %tso -o %tout
5// RUN: llvm-readobj -r %tout | FileCheck --check-prefix=NORELOC %s5// RUN: llvm-readobj -r %tout | FileCheck --check-prefix=NORELOC %s
6// RUN: llvm-objdump -d %tout | FileCheck --check-prefix=DISASM %s6// RUN: llvm-objdump -d %tout | FileCheck --check-prefix=DISASM %s
77
deps/lld/test/ELF/tls-opt-iele-i686-nopic.s+1-1
...@@ -1,7 +1,7 @@...@@ -1,7 +1,7 @@
1// RUN: llvm-mc -filetype=obj -triple=i686-pc-linux %s -o %t.o1// RUN: llvm-mc -filetype=obj -triple=i686-pc-linux %s -o %t.o
2// RUN: llvm-mc -filetype=obj -triple=i686-pc-linux %p/Inputs/tls-opt-iele-i686-nopic.s -o %tso.o2// RUN: llvm-mc -filetype=obj -triple=i686-pc-linux %p/Inputs/tls-opt-iele-i686-nopic.s -o %tso.o
3// RUN: ld.lld -shared %tso.o -o %tso3// RUN: ld.lld -shared %tso.o -o %tso
4// RUN: ld.lld %t.o %tso -o %t14// RUN: ld.lld --hash-style=sysv %t.o %tso -o %t1
5// RUN: llvm-readobj -s -r %t1 | FileCheck --check-prefix=GOTREL %s5// RUN: llvm-readobj -s -r %t1 | FileCheck --check-prefix=GOTREL %s
6// RUN: llvm-objdump -d %t1 | FileCheck --check-prefix=DISASM %s6// RUN: llvm-objdump -d %t1 | FileCheck --check-prefix=DISASM %s
77
deps/lld/test/ELF/tls-static.s+12-4
...@@ -3,12 +3,20 @@...@@ -3,12 +3,20 @@
3// RUN: ld.lld -static %t -o %tout3// RUN: ld.lld -static %t -o %tout
4// RUN: ld.lld %t -o %tout4// RUN: ld.lld %t -o %tout
5// RUN: ld.lld -shared %tso -o %tshared5// RUN: ld.lld -shared %tso -o %tshared
6// RUN: not ld.lld -static %t %tshared -o %tout 2>&1 | FileCheck %s6// RUN: ld.lld -static %t %tshared -o %tout
7// REQUIRES: x867// REQUIRES: x86
88
9.global _start9.global _start
10_start:10_start:
11 call __tls_get_addr11 data16
12 leaq foobar@TLSGD(%rip), %rdi
13 data16
14 data16
15 rex64
16 callq __tls_get_addr@PLT
1217
13// CHECK: error: undefined symbol: __tls_get_addr18
14// CHECK: >>> referenced by {{.*}}:(.text+0x1)19.section .tdata,"awT",@progbits
20.global foobar
21foobar:
22 .long 42
deps/lld/test/ELF/tls-two-relocs.s+1-1
...@@ -1,6 +1,6 @@...@@ -1,6 +1,6 @@
1// REQUIRES: x861// REQUIRES: x86
2// RUN: llvm-mc -filetype=obj -triple=x86_64-unknown-linux %s -o %t2// RUN: llvm-mc -filetype=obj -triple=x86_64-unknown-linux %s -o %t
3// RUN: ld.lld %t -o %tout -shared3// RUN: ld.lld --hash-style=sysv %t -o %tout -shared
4// RUN: llvm-readobj -r %tout | FileCheck %s4// RUN: llvm-readobj -r %tout | FileCheck %s
55
6 data166 data16
deps/lld/test/ELF/trace-symbols.s+9-5
...@@ -31,19 +31,23 @@...@@ -31,19 +31,23 @@
31# RUN: %t %t2 %t1 -o %t4 2>&1 | FileCheck -check-prefix=OBJECTD2FOO %s31# RUN: %t %t2 %t1 -o %t4 2>&1 | FileCheck -check-prefix=OBJECTD2FOO %s
32# RUN: ld.lld -y foo -y common %t %t1.so %t2 -o %t3 2>&1 | \32# RUN: ld.lld -y foo -y common %t %t1.so %t2 -o %t3 2>&1 | \
33# RUN: FileCheck -check-prefix=OBJECTD2FOO %s33# RUN: FileCheck -check-prefix=OBJECTD2FOO %s
34# RUN: ld.lld -y foo -y common %t %t2 %t1.a -o %t3 2>&1 | \
35# RUN: FileCheck -check-prefix=OBJECTD2FOO %s
36# OBJECTD2FOO: trace-symbols.s.tmp2: definition of foo34# OBJECTD2FOO: trace-symbols.s.tmp2: definition of foo
3735
36# RUN: ld.lld -y foo -y common %t %t2 %t1.a -o %t3 2>&1 | \
37# RUN: FileCheck -check-prefix=FOO_AND_COMMON %s
38# FOO_AND_COMMON: trace-symbols.s.tmp: reference to foo
39# FOO_AND_COMMON: trace-symbols.s.tmp2: definition of foo
40# FOO_AND_COMMON: trace-symbols.s.tmp1.a: lazy definition of common
41
38# RUN: ld.lld -y foo -y common %t %t1.so %t2 -o %t3 2>&1 | \42# RUN: ld.lld -y foo -y common %t %t1.so %t2 -o %t3 2>&1 | \
39# RUN: FileCheck -check-prefix=SHLIBDCOMMON %s43# RUN: FileCheck -check-prefix=SHLIBDCOMMON %s
40# SHLIBDCOMMON: trace-symbols.s.tmp1.so: definition of common44# SHLIBDCOMMON: trace-symbols.s.tmp1.so: shared definition of common
4145
42# RUN: ld.lld -y foo -y common %t %t2.so %t1.so -o %t3 2>&1 | \46# RUN: ld.lld -y foo -y common %t %t2.so %t1.so -o %t3 2>&1 | \
43# RUN: FileCheck -check-prefix=SHLIBD2FOO %s47# RUN: FileCheck -check-prefix=SHLIBD2FOO %s
44# RUN: ld.lld -y foo %t %t1.a %t2.so -o %t3 | \48# RUN: ld.lld -y foo %t %t1.a %t2.so -o %t3 | \
45# RUN: FileCheck -check-prefix=NO-SHLIBD2FOO %s49# RUN: FileCheck -check-prefix=NO-SHLIBD2FOO %s
46# SHLIBD2FOO: trace-symbols.s.tmp2.so: definition of foo50# SHLIBD2FOO: trace-symbols.s.tmp2.so: shared definition of foo
47# NO-SHLIBD2FOO-NOT: trace-symbols.s.tmp2.so: definition of foo51# NO-SHLIBD2FOO-NOT: trace-symbols.s.tmp2.so: definition of foo
4852
49# RUN: ld.lld -y foo -y common %t %t2 %t1.a -o %t3 2>&1 | \53# RUN: ld.lld -y foo -y common %t %t2 %t1.a -o %t3 2>&1 | \
...@@ -61,7 +65,7 @@...@@ -61,7 +65,7 @@
6165
62# RUN: ld.lld -y bar %t %t1.so %t2.so -o %t3 | \66# RUN: ld.lld -y bar %t %t1.so %t2.so -o %t3 | \
63# RUN: FileCheck -check-prefix=SHLIBDBAR %s67# RUN: FileCheck -check-prefix=SHLIBDBAR %s
64# SHLIBDBAR: trace-symbols.s.tmp2.so: definition of bar68# SHLIBDBAR: trace-symbols.s.tmp2.so: shared definition of bar
6569
66# RUN: ld.lld -y foo -y bar %t %t1.so %t2.so -o %t3 | \70# RUN: ld.lld -y foo -y bar %t %t1.so %t2.so -o %t3 | \
67# RUN: FileCheck -check-prefix=SHLIBRBAR %s71# RUN: FileCheck -check-prefix=SHLIBRBAR %s
deps/lld/test/ELF/typed-undef.s created+11
...@@ -0,0 +1,11 @@
1# REQUIRES: x86
2
3# We used to crash on this, check that we don't
4
5# RUN: llvm-mc -filetype=obj -triple=x86_64-pc-linux %s -o %t.o
6# RUN: ld.lld %t.o -o %t -pie --unresolved-symbols=ignore-all
7
8 .global _start
9_start:
10 .quad foo - .
11 .type foo, @object
deps/lld/test/ELF/undef-broken-debug.test created+47
...@@ -0,0 +1,47 @@
1# REQUIRES: x86
2# RUN: yaml2obj %s -o %t.o
3# RUN: not ld.lld %t.o -o %t.exe 2>&1 | FileCheck %s
4
5# The debug info has a broken relocation. Check that we don't crash
6# and still report the undefined symbol.
7
8# CHECK: error: unsupported relocation target while parsing debug info
9# CHECK: error: undefined symbol: bar
10
11--- !ELF
12FileHeader:
13 Class: ELFCLASS64
14 Data: ELFDATA2LSB
15 Type: ET_REL
16 Machine: EM_X86_64
17Sections:
18 - Name: .text
19 Type: SHT_PROGBITS
20 Flags: [ SHF_ALLOC, SHF_EXECINSTR ]
21 Content: '0000000000000000'
22 - Name: .rela.text
23 Type: SHT_RELA
24 AddressAlign: 8
25 Link: .symtab
26 Info: .text
27 Relocations:
28 - Offset: 0x0000000000000000
29 Symbol: bar
30 Type: R_X86_64_64
31 - Name: .debug_line
32 Type: SHT_PROGBITS
33 Content: 3300000002001C0000000101FB0E0D000101010100000001000001006162632E7300000000000009020000000000000000140208000101
34 - Name: .rela.debug_line
35 AddressAlign: 8
36 Type: SHT_RELA
37 Link: .symtab
38 Info: .debug_line
39 Relocations:
40 - Offset: 0x0000000000000029
41 Symbol: bar
42 Type: R_X86_64_64
43Symbols:
44 Global:
45 - Name: _start
46 Section: .text
47 - Name: bar
deps/lld/test/ELF/undef-version-script.s+3-3
...@@ -3,9 +3,6 @@...@@ -3,9 +3,6 @@
3# RUN: ld.lld --version-script %t.script -shared %t.o -o %t.so3# RUN: ld.lld --version-script %t.script -shared %t.o -o %t.so
4# RUN: llvm-readobj -dyn-symbols %t.so | FileCheck %s4# RUN: llvm-readobj -dyn-symbols %t.so | FileCheck %s
55
6# This does not match gold's behavior because gold does not create undefined
7# symbols in dynsym without an appropriate (e.g. PLT) relocation in the input.
8
9# CHECK: DynamicSymbols [6# CHECK: DynamicSymbols [
10# CHECK-NEXT: Symbol {7# CHECK-NEXT: Symbol {
11# CHECK-NEXT: Name: @8# CHECK-NEXT: Name: @
...@@ -38,3 +35,6 @@...@@ -38,3 +35,6 @@
3835
39.global foo36.global foo
40.weak bar37.weak bar
38.data
39 .dc.a foo
40 .dc.a bar
deps/lld/test/ELF/unresolved-symbols.s+3
...@@ -13,6 +13,9 @@...@@ -13,6 +13,9 @@
13# RUN: not ld.lld %t1.o %t2.o -o %t --unresolved-symbols=xxx 2>&1 | \13# RUN: not ld.lld %t1.o %t2.o -o %t --unresolved-symbols=xxx 2>&1 | \
14# RUN: FileCheck -check-prefix=ERR1 %s14# RUN: FileCheck -check-prefix=ERR1 %s
15# ERR1: unknown --unresolved-symbols value: xxx15# ERR1: unknown --unresolved-symbols value: xxx
16## Check alias.
17# RUN: not ld.lld %t1.o %t2.o -o %t --unresolved-symbols xxx 2>&1 | \
18# RUN: FileCheck -check-prefix=ERR1 %s
1619
17## Ignore all should not produce error for symbols from object except20## Ignore all should not produce error for symbols from object except
18## case when --no-undefined specified.21## case when --no-undefined specified.
deps/lld/test/ELF/verdef-defaultver.s+2-2
...@@ -3,7 +3,7 @@...@@ -3,7 +3,7 @@
3# RUN: llvm-mc -filetype=obj -triple=x86_64-unknown-linux %p/Inputs/verdef-defaultver.s -o %t13# RUN: llvm-mc -filetype=obj -triple=x86_64-unknown-linux %p/Inputs/verdef-defaultver.s -o %t1
4# RUN: echo "V1 { global: a; local: *; };" > %t.script4# RUN: echo "V1 { global: a; local: *; };" > %t.script
5# RUN: echo "V2 { global: b; c; } V1;" >> %t.script5# RUN: echo "V2 { global: b; c; } V1;" >> %t.script
6# RUN: ld.lld -shared -soname shared %t1 --version-script %t.script -o %t.so6# RUN: ld.lld --hash-style=sysv -shared -soname shared %t1 --version-script %t.script -o %t.so
7# RUN: llvm-readobj -V -dyn-symbols %t.so | FileCheck --check-prefix=DSO %s7# RUN: llvm-readobj -V -dyn-symbols %t.so | FileCheck --check-prefix=DSO %s
88
9# DSO: DynamicSymbols [9# DSO: DynamicSymbols [
...@@ -107,7 +107,7 @@...@@ -107,7 +107,7 @@
107107
108## Check that we can link against DSO produced.108## Check that we can link against DSO produced.
109# RUN: llvm-mc -filetype=obj -triple=x86_64-unknown-linux %s -o %t2109# RUN: llvm-mc -filetype=obj -triple=x86_64-unknown-linux %s -o %t2
110# RUN: ld.lld %t2 %t.so -o %t3110# RUN: ld.lld --hash-style=sysv %t2 %t.so -o %t3
111# RUN: llvm-readobj -V -dyn-symbols %t3 | FileCheck --check-prefix=EXE %s111# RUN: llvm-readobj -V -dyn-symbols %t3 | FileCheck --check-prefix=EXE %s
112112
113# EXE: DynamicSymbols [113# EXE: DynamicSymbols [
deps/lld/test/ELF/verdef.s+3-3
...@@ -3,7 +3,7 @@...@@ -3,7 +3,7 @@
3# RUN: echo "LIBSAMPLE_1.0 { global: a; local: *; };" > %t.script3# RUN: echo "LIBSAMPLE_1.0 { global: a; local: *; };" > %t.script
4# RUN: echo "LIBSAMPLE_2.0 { global: b; local: *; };" >> %t.script4# RUN: echo "LIBSAMPLE_2.0 { global: b; local: *; };" >> %t.script
5# RUN: echo "LIBSAMPLE_3.0 { global: c; local: *; };" >> %t.script5# RUN: echo "LIBSAMPLE_3.0 { global: c; local: *; };" >> %t.script
6# RUN: ld.lld --version-script %t.script -shared -soname shared %t.o -o %t.so6# RUN: ld.lld --hash-style=sysv --version-script %t.script -shared -soname shared %t.o -o %t.so
7# RUN: llvm-readobj -V -dyn-symbols %t.so | FileCheck --check-prefix=DSO %s7# RUN: llvm-readobj -V -dyn-symbols %t.so | FileCheck --check-prefix=DSO %s
88
9# DSO: Version symbols {9# DSO: Version symbols {
...@@ -65,7 +65,7 @@...@@ -65,7 +65,7 @@
6565
66## Check that we can link agains DSO we produced.66## Check that we can link agains DSO we produced.
67# RUN: llvm-mc -filetype=obj -triple=x86_64-unknown-linux %S/Inputs/verdef.s -o %tmain.o67# RUN: llvm-mc -filetype=obj -triple=x86_64-unknown-linux %S/Inputs/verdef.s -o %tmain.o
68# RUN: ld.lld %tmain.o %t.so -o %tout68# RUN: ld.lld --hash-style=sysv %tmain.o %t.so -o %tout
69# RUN: llvm-readobj -V %tout | FileCheck --check-prefix=MAIN %s69# RUN: llvm-readobj -V %tout | FileCheck --check-prefix=MAIN %s
7070
71# MAIN: Version symbols {71# MAIN: Version symbols {
...@@ -100,7 +100,7 @@...@@ -100,7 +100,7 @@
100# RUN: echo "LIBSAMPLE_2.0 { global: b; local: *; };" >> %t.script100# RUN: echo "LIBSAMPLE_2.0 { global: b; local: *; };" >> %t.script
101# RUN: echo "LIBSAMPLE_3.0 { global: c; local: *; };" >> %t.script101# RUN: echo "LIBSAMPLE_3.0 { global: c; local: *; };" >> %t.script
102# RUN: echo "}" >> %t.script102# RUN: echo "}" >> %t.script
103# RUN: ld.lld --script %t.script -shared -soname shared %t.o -o %t2.so103# RUN: ld.lld --hash-style=sysv --script %t.script -shared -soname shared %t.o -o %t2.so
104# RUN: llvm-readobj -V -dyn-symbols %t2.so | FileCheck --check-prefix=DSO %s104# RUN: llvm-readobj -V -dyn-symbols %t2.so | FileCheck --check-prefix=DSO %s
105105
106.globl a106.globl a
deps/lld/test/ELF/verneed-as-needed-weak.s+5-1
...@@ -1,6 +1,10 @@...@@ -1,6 +1,10 @@
1# REQUIRES: x861# REQUIRES: x86
2# RUN: llvm-mc -filetype=obj -triple=x86_64-pc-linux %S/Inputs/verneed1.s -o %t1.o
3# RUN: echo "v1 {}; v2 {}; v3 { local: *; };" > %t.script
4# RUN: ld.lld -shared %t1.o --version-script %t.script -o %t.so
5
2# RUN: llvm-mc -filetype=obj -triple=x86_64-pc-linux %s -o %t.o6# RUN: llvm-mc -filetype=obj -triple=x86_64-pc-linux %s -o %t.o
3# RUN: ld.lld %t.o --as-needed %S/Inputs/verneed1.so -o %t7# RUN: ld.lld %t.o --as-needed %t.so -o %t
4# RUN: llvm-readobj -V %t | FileCheck %s8# RUN: llvm-readobj -V %t | FileCheck %s
59
6# CHECK: SHT_GNU_verneed {10# CHECK: SHT_GNU_verneed {
deps/lld/test/ELF/verneed-local.s+5-1
...@@ -1,6 +1,10 @@...@@ -1,6 +1,10 @@
1# REQUIRES: x861# REQUIRES: x86
2# RUN: llvm-mc -filetype=obj -triple=x86_64-pc-linux %S/Inputs/verneed1.s -o %t1.o
3# RUN: echo "v1 {}; v2 {}; v3 { local: *; };" > %t.script
4# RUN: ld.lld -shared %t1.o --version-script %t.script -o %t.so
5
2# RUN: llvm-mc -filetype=obj -triple=x86_64-pc-linux %s -o %t.o6# RUN: llvm-mc -filetype=obj -triple=x86_64-pc-linux %s -o %t.o
3# RUN: not ld.lld %t.o %S/Inputs/verneed1.so -o %t 2>&1 | FileCheck %s7# RUN: not ld.lld %t.o %t.so -o %t 2>&1 | FileCheck %s
48
5# CHECK: error: undefined symbol: f39# CHECK: error: undefined symbol: f3
6# CHECK: >>> referenced by {{.*}}:(.text+0x1)10# CHECK: >>> referenced by {{.*}}:(.text+0x1)
deps/lld/test/ELF/verneed.s+7-1
...@@ -1,6 +1,12 @@...@@ -1,6 +1,12 @@
1# REQUIRES: x861# REQUIRES: x86
2# RUN: llvm-mc -filetype=obj -triple=x86_64-pc-linux %S/Inputs/verneed1.s -o %t1.o
3# RUN: echo "v1 {}; v2 {}; v3 { local: *; };" > %t.script
4# RUN: ld.lld -shared %t1.o --version-script %t.script -o %t1.so -soname verneed1.so.0
5# RUN: llvm-mc -filetype=obj -triple=x86_64-pc-linux %S/Inputs/verneed2.s -o %t2.o
6# RUN: ld.lld -shared %t2.o --version-script %t.script -o %t2.so -soname verneed2.so.0
7
2# RUN: llvm-mc -filetype=obj -triple=x86_64-pc-linux %s -o %t.o8# RUN: llvm-mc -filetype=obj -triple=x86_64-pc-linux %s -o %t.o
3# RUN: ld.lld %t.o %S/Inputs/verneed1.so %S/Inputs/verneed2.so -o %t9# RUN: ld.lld --hash-style=sysv %t.o %t1.so %t2.so -o %t
4# RUN: llvm-readobj -V -sections -section-data -dyn-symbols -dynamic-table %t | FileCheck %s10# RUN: llvm-readobj -V -sections -section-data -dyn-symbols -dynamic-table %t | FileCheck %s
511
6# CHECK: Section {12# CHECK: Section {
deps/lld/test/ELF/version-script-err.s-1
...@@ -8,4 +8,3 @@...@@ -8,4 +8,3 @@
8// RUN: not ld.lld --version-script %terr1.script -shared %t.o -o %t.so 2>&1 | \8// RUN: not ld.lld --version-script %terr1.script -shared %t.o -o %t.so 2>&1 | \
9// RUN: FileCheck -check-prefix=ERR1 %s9// RUN: FileCheck -check-prefix=ERR1 %s
10// ERR1: {{.*}}:1: unclosed quote10// ERR1: {{.*}}:1: unclosed quote
11// ERR1-NEXT: {{.*}}: unexpected EOF
deps/lld/test/ELF/version-script-extern.s+1-1
...@@ -7,7 +7,7 @@...@@ -7,7 +7,7 @@
7# RUN: echo "LIBSAMPLE_2.0 { global:" >> %t.script7# RUN: echo "LIBSAMPLE_2.0 { global:" >> %t.script
8# RUN: echo ' extern "C" { _Z3bari; };' >> %t.script8# RUN: echo ' extern "C" { _Z3bari; };' >> %t.script
9# RUN: echo "};" >> %t.script9# RUN: echo "};" >> %t.script
10# RUN: ld.lld --version-script %t.script -shared %t.o -o %t.so10# RUN: ld.lld --hash-style=sysv --version-script %t.script -shared %t.o -o %t.so
11# RUN: llvm-readobj -V -dyn-symbols %t.so | FileCheck --check-prefix=DSO %s11# RUN: llvm-readobj -V -dyn-symbols %t.so | FileCheck --check-prefix=DSO %s
1212
13# DSO: DynamicSymbols [13# DSO: DynamicSymbols [
deps/lld/test/ELF/version-script-twice.s+4
...@@ -7,7 +7,11 @@...@@ -7,7 +7,11 @@
77
8 .weak openat8 .weak openat
9openat:9openat:
10
11 .global openat@FBSD_1.1
10openat@FBSD_1.1 = openat12openat@FBSD_1.1 = openat
13
14 .global openat@@FBSD_1.2
11openat@@FBSD_1.2 = openat15openat@@FBSD_1.2 = openat
1216
13# CHECK-DAG: openat@FBSD_1.117# CHECK-DAG: openat@FBSD_1.1
deps/lld/test/ELF/version-script.s+8-2
...@@ -42,6 +42,12 @@...@@ -42,6 +42,12 @@
42# RUN: ld.lld --version-script %t.script --dynamic-list %t.list %t.o %t2.so -o %t242# RUN: ld.lld --version-script %t.script --dynamic-list %t.list %t.o %t2.so -o %t2
43# RUN: llvm-readobj %t2 > /dev/null43# RUN: llvm-readobj %t2 > /dev/null
4444
45## Check that we can handle multiple "--version-script" options.
46# RUN: echo "VERSION_1.0 { global : foo1; local : *; };" > %t7a.script
47# RUN: echo "VERSION_2.0 { global: foo3; local: *; };" > %t7b.script
48# RUN: ld.lld --version-script %t7a.script --version-script %t7b.script -shared %t.o %t2.so -o %t7.so
49# RUN: llvm-readobj -dyn-symbols %t7.so | FileCheck --check-prefix=VERDSO %s
50
45# DSO: DynamicSymbols [51# DSO: DynamicSymbols [
46# DSO-NEXT: Symbol {52# DSO-NEXT: Symbol {
47# DSO-NEXT: Name: @53# DSO-NEXT: Name: @
...@@ -142,12 +148,12 @@...@@ -142,12 +148,12 @@
142# VERDSO-NEXT: ]148# VERDSO-NEXT: ]
143149
144# RUN: llvm-mc -filetype=obj -triple=x86_64-unknown-linux %s -o %t.o150# RUN: llvm-mc -filetype=obj -triple=x86_64-unknown-linux %s -o %t.o
145# RUN: ld.lld -shared %t.o %t2.so -o %t.so151# RUN: ld.lld --hash-style=sysv -shared %t.o %t2.so -o %t.so
146# RUN: llvm-readobj -dyn-symbols %t.so | FileCheck --check-prefix=ALL %s152# RUN: llvm-readobj -dyn-symbols %t.so | FileCheck --check-prefix=ALL %s
147153
148# RUN: echo "{ global: foo1; foo3; };" > %t2.script154# RUN: echo "{ global: foo1; foo3; };" > %t2.script
149# RUN: llvm-mc -filetype=obj -triple=x86_64-unknown-linux %s -o %t.o155# RUN: llvm-mc -filetype=obj -triple=x86_64-unknown-linux %s -o %t.o
150# RUN: ld.lld --version-script %t2.script -shared %t.o %t2.so -o %t.so156# RUN: ld.lld --hash-style=sysv --version-script %t2.script -shared %t.o %t2.so -o %t.so
151# RUN: llvm-readobj -dyn-symbols %t.so | FileCheck --check-prefix=ALL %s157# RUN: llvm-readobj -dyn-symbols %t.so | FileCheck --check-prefix=ALL %s
152158
153# ALL: DynamicSymbols [159# ALL: DynamicSymbols [
deps/lld/test/ELF/weak-entry.s created+13
...@@ -0,0 +1,13 @@
1# REQUIRES: x86
2# RUN: llvm-mc -filetype=obj -triple=x86_64-pc-linux %s -o %t
3# RUN: ld.lld %t -o %tout
4# RUN: llvm-nm %tout | FileCheck %s
5
6# CHECK: w _start
7# CHECK-NEXT: T foo
8
9.global foo
10.weak _start
11.text
12foo:
13 .dc.a _start
deps/lld/test/ELF/weak-undef-export.s created+31
...@@ -0,0 +1,31 @@
1# REQUIRES: x86
2
3# Test that we don't fail with foo being undefined.
4
5# RUN: llvm-mc -filetype=obj -triple=x86_64-pc-linux %s -o %t.o
6# RUN: ld.lld --export-dynamic %t.o -o %t
7# RUN: llvm-readobj -dyn-symbols %t | FileCheck %s
8
9# CHECK: DynamicSymbols [
10# CHECK-NEXT: Symbol {
11# CHECK-NEXT: Name: @ (0)
12# CHECK-NEXT: Value: 0x0
13# CHECK-NEXT: Size: 0
14# CHECK-NEXT: Binding: Local (0x0)
15# CHECK-NEXT: Type: None (0x0)
16# CHECK-NEXT: Other: 0
17# CHECK-NEXT: Section: Undefined (0x0)
18# CHECK-NEXT: }
19# CHECK-NEXT: Symbol {
20# CHECK-NEXT: Name: foo@ (1)
21# CHECK-NEXT: Value: 0x0
22# CHECK-NEXT: Size: 0
23# CHECK-NEXT: Binding: Weak (0x2)
24# CHECK-NEXT: Type: None (0x0)
25# CHECK-NEXT: Other: 0
26# CHECK-NEXT: Section: Undefined (0x0)
27# CHECK-NEXT: }
28# CHECK-NEXT: ]
29
30 .weak foo
31 .quad foo
deps/lld/test/ELF/weak-undef-lazy.s created+11
...@@ -0,0 +1,11 @@
1# REQUIRES: x86
2# RUN: llvm-mc -filetype=obj -triple=x86_64-pc-linux %s -o %t.o
3# RUN: llvm-mc -filetype=obj -triple=x86_64-pc-linux %S/Inputs/weak-undef-lazy.s -o %t2.o
4# RUN: rm -f %t2.a
5# RUN: llvm-ar rc %t2.a %t2.o
6# RUN: ld.lld %t.o %t2.a -o %t --export-dynamic
7
8 .global _start
9_start:
10 .weak foobar
11 .quad foobar
deps/lld/test/ELF/weak-undef-rw.s created+12
...@@ -0,0 +1,12 @@
1# REQUIRES: x86
2# RUN: llvm-mc -filetype=obj -triple=x86_64-pc-linux %s -o %t.o
3# RUN: ld.lld %t.o -o %t --export-dynamic
4# RUN: llvm-readobj -r %t | FileCheck %s
5
6# CHECK: R_X86_64_64 foobar 0x0
7
8 .global _start
9_start:
10 .data
11 .weak foobar
12 .quad foobar
deps/lld/test/ELF/weak-undef-val.s created+26
...@@ -0,0 +1,26 @@
1# REQUIRES: x86
2# RUN: llvm-mc -filetype=obj -triple=x86_64-pc-linux %s -o %t.o
3# RUN: ld.lld %t.o -o %t --export-dynamic
4# RUN: llvm-readobj -s -section-data %t | FileCheck %s
5
6# CHECK: Name: .text
7# CHECK-NEXT: Type: SHT_PROGBITS
8# CHECK-NEXT: Flags [
9# CHECK-NEXT: SHF_ALLOC
10# CHECK-NEXT: SHF_EXECINSTR
11# CHECK-NEXT: ]
12# CHECK-NEXT: Address: 0x201000
13# CHECK-NEXT: Offset:
14# CHECK-NEXT: Size:
15# CHECK-NEXT: Link:
16# CHECK-NEXT: Info:
17# CHECK-NEXT: AddressAlignment:
18# CHECK-NEXT: EntrySize:
19# CHECK-NEXT: SectionData (
20# CHECK-NEXT: 0000: 00F0DFFF |
21# CHECK-NEXT: )
22
23 .global _start
24_start:
25 .weak foobar
26 .long foobar - .
deps/lld/test/ELF/weak-undef.s+12
...@@ -13,9 +13,21 @@...@@ -13,9 +13,21 @@
13# CHECK-NEXT: Other: 013# CHECK-NEXT: Other: 0
14# CHECK-NEXT: Section: Undefined (0x0)14# CHECK-NEXT: Section: Undefined (0x0)
15# CHECK-NEXT: }15# CHECK-NEXT: }
16# CHECK-NEXT: Symbol {
17# CHECK-NEXT: Name: foo@
18# CHECK-NEXT: Value: 0x0
19# CHECK-NEXT: Size: 0
20# CHECK-NEXT: Binding: Weak
21# CHECK-NEXT: Type: None
22# CHECK-NEXT: Other: 0
23# CHECK-NEXT: Section: Undefined
24# CHECK-NEXT: }
16# CHECK-NEXT: ]25# CHECK-NEXT: ]
1726
18.weak foo27.weak foo
1928
20.globl _start29.globl _start
21_start:30_start:
31
32.data
33 .dc.a foo
deps/lld/test/ELF/wrap-no-real.s created+77
...@@ -0,0 +1,77 @@
1// REQUIRES: x86
2// RUN: llvm-mc -filetype=obj -triple=x86_64-pc-linux %s -o %t1.o
3// RUN: llvm-mc -filetype=obj -triple=x86_64-pc-linux %p/Inputs/wrap-no-real.s -o %t2.o
4// RUN: llvm-mc -filetype=obj -triple=x86_64-pc-linux %p/Inputs/wrap-no-real2.s -o %t3.o
5// RUN: ld.lld -o %t3.so -shared %t3.o
6
7// RUN: ld.lld -o %t %t1.o %t2.o -wrap foo
8// RUN: llvm-objdump -d -print-imm-hex %t | FileCheck %s
9
10// RUN: ld.lld -o %t %t1.o %t2.o %t3.so -wrap foo
11// RUN: llvm-objdump -d -print-imm-hex %t | FileCheck %s
12
13// CHECK: _start:
14// CHECK-NEXT: movl $0x11010, %edx
15// CHECK-NEXT: movl $0x11010, %edx
16// CHECK-NEXT: movl $0x11000, %edx
17
18// RUN: llvm-readobj -t %t | FileCheck -check-prefix=SYM %s
19
20// Test the full symbol table. It is verbose, but lld at times
21// produced duplicated symbols which are hard to test otherwise.
22
23// SYM: Symbols [
24// SYM-NEXT: Symbol {
25// SYM-NEXT: Name: (0)
26// SYM-NEXT: Value:
27// SYM-NEXT: Size:
28// SYM-NEXT: Binding:
29// SYM-NEXT: Type
30// SYM-NEXT: Other:
31// SYM-NEXT: Section:
32// SYM-NEXT: }
33// SYM-NEXT: Symbol {
34// SYM-NEXT: Name: _DYNAMIC
35// SYM-NEXT: Value:
36// SYM-NEXT: Size:
37// SYM-NEXT: Binding:
38// SYM-NEXT: Type:
39// SYM-NEXT: Other [
40// SYM-NEXT: STV_HIDDEN
41// SYM-NEXT: ]
42// SYM-NEXT: Section: .dynamic
43// SYM-NEXT: }
44// SYM-NEXT: Symbol {
45// SYM-NEXT: Name: foo
46// SYM-NEXT: Value: 0x11000
47// SYM-NEXT: Size:
48// SYM-NEXT: Binding:
49// SYM-NEXT: Type:
50// SYM-NEXT: Other:
51// SYM-NEXT: Section:
52// SYM-NEXT: }
53// SYM-NEXT: Symbol {
54// SYM-NEXT: Name: _start
55// SYM-NEXT: Value:
56// SYM-NEXT: Size:
57// SYM-NEXT: Binding:
58// SYM-NEXT: Type
59// SYM-NEXT: Other:
60// SYM-NEXT: Section:
61// SYM-NEXT: }
62// SYM-NEXT: Symbol {
63// SYM-NEXT: Name: __wrap_foo
64// SYM-NEXT: Value: 0x11010
65// SYM-NEXT: Size:
66// SYM-NEXT: Binding:
67// SYM-NEXT: Type:
68// SYM-NEXT: Other:
69// SYM-NEXT: Section:
70// SYM-NEXT: }
71// SYM-NEXT: ]
72
73.global _start
74_start:
75 movl $foo, %edx
76 movl $__wrap_foo, %edx
77 movl $__real_foo, %edx
deps/lld/test/ELF/wrap.s+24-10
...@@ -12,17 +12,31 @@...@@ -12,17 +12,31 @@
12// CHECK-NEXT: movl $0x11010, %edx12// CHECK-NEXT: movl $0x11010, %edx
13// CHECK-NEXT: movl $0x11000, %edx13// CHECK-NEXT: movl $0x11000, %edx
1414
15// This shows an oddity of our implementation. The symbol foo gets15// RUN: llvm-readobj -t %t3 > %t4.dump
16// mapped to __wrap_foo, but stays in the symbol table. This results16// RUN: FileCheck --check-prefix=SYM1 %s < %t4.dump
17// in it showing up twice in the output.17// RUN: FileCheck --check-prefix=SYM2 %s < %t4.dump
18// RUN: FileCheck --check-prefix=SYM3 %s < %t4.dump
1819
19// RUN: llvm-readobj -t -s %t3 | FileCheck -check-prefix=SYM %s20// SYM1: Name: foo
20// SYM: Name: foo21// SYM1-NEXT: Value: 0x11000
21// SYM-NEXT: Value: 0x1100022// SYM1-NEXT: Size:
22// SYM: Name: __wrap_foo23// SYM1-NEXT: Binding: Global
23// SYM-NEXT: Value: 0x1101024// SYM1-NEXT: Type: None
24// SYM: Name: __wrap_foo25// SYM1-NEXT: Other: 0
25// SYM-NEXT: Value: 0x1101026// SYM2: Name: __wrap_foo
27// SYM2-NEXT: Value: 0x11010
28// SYM2-NEXT: Size:
29// SYM2-NEXT: Binding: Weak
30// SYM2-NEXT: Type: None
31// SYM2-NEXT: Other [
32// SYM2-NEXT: STV_PROTECTED
33// SYM2-NEXT: ]
34// SYM3: Name: __real_foo
35// SYM3-NEXT: Value: 0x11020
36// SYM3-NEXT: Size:
37// SYM3-NEXT: Binding: Global
38// SYM3-NEXT: Type: None
39// SYM3-NEXT: Other: 0
2640
27.global _start41.global _start
28_start:42_start:
deps/lld/test/ELF/writable-sec-plt-reloc.s created+14
...@@ -0,0 +1,14 @@
1# REQUIRES: x86
2# RUN: llvm-mc %s -o %t.o -filetype=obj -triple=x86_64-pc-linux
3# RUN: llvm-mc %p/Inputs/writable-sec-plt-reloc.s -o %t2.o -filetype=obj -triple=x86_64-pc-linux
4# RUN: ld.lld %t2.o -o %t2.so -shared
5# RUN: ld.lld %t.o %t2.so -o %t
6# RUN: llvm-readelf --symbols -r %t | FileCheck %s
7
8# CHECK: R_X86_64_JUMP_SLOT {{.*}} foo + 0
9# CHECK: 0000000000201010 0 FUNC GLOBAL DEFAULT UND foo
10
11.section .bar,"awx"
12.global _start
13_start:
14 call foo
deps/lld/test/ELF/x86-64-dyn-rel-error.s+4-2
...@@ -2,11 +2,13 @@...@@ -2,11 +2,13 @@
2// RUN: llvm-mc -filetype=obj -triple=x86_64-pc-linux %s -o %t.o2// RUN: llvm-mc -filetype=obj -triple=x86_64-pc-linux %s -o %t.o
3// RUN: llvm-mc -filetype=obj -triple=x86_64-pc-linux %p/Inputs/shared.s -o %t2.o3// RUN: llvm-mc -filetype=obj -triple=x86_64-pc-linux %p/Inputs/shared.s -o %t2.o
4// RUN: ld.lld %t2.o -shared -o %t2.so4// RUN: ld.lld %t2.o -shared -o %t2.so
5// RUN: not ld.lld %t.o %t2.so -o %t 2>&1 | FileCheck %s5// RUN: not ld.lld -shared %t.o %t2.so -o %t 2>&1 | FileCheck %s
66
7 .global _start7 .global _start
8_start:8_start:
9 .data9 .data
10 .long bar10 .long zed
1111
12// CHECK: relocation R_X86_64_32 cannot be used against shared object; recompile with -fPIC12// CHECK: relocation R_X86_64_32 cannot be used against shared object; recompile with -fPIC
13
14// RUN: ld.lld --noinhibit-exec %t.o %t2.so -o %t 2>&1 | FileCheck %s
deps/lld/test/ELF/x86-64-dyn-rel-error2.s+2-2
...@@ -2,7 +2,7 @@...@@ -2,7 +2,7 @@
2// RUN: llvm-mc -filetype=obj -triple=x86_64-pc-linux %s -o %t.o2// RUN: llvm-mc -filetype=obj -triple=x86_64-pc-linux %s -o %t.o
3// RUN: llvm-mc -filetype=obj -triple=x86_64-pc-linux %p/Inputs/shared.s -o %t2.o3// RUN: llvm-mc -filetype=obj -triple=x86_64-pc-linux %p/Inputs/shared.s -o %t2.o
4// RUN: ld.lld %t2.o -shared -o %t2.so4// RUN: ld.lld %t2.o -shared -o %t2.so
5// RUN: not ld.lld %t.o %t2.so -o %t 2>&1 | FileCheck %s5// RUN: not ld.lld -shared %t.o %t2.so -o %t 2>&1 | FileCheck %s
66
7// CHECK: relocation R_X86_64_PC32 cannot be used against shared object; recompile with -fPIC7// CHECK: relocation R_X86_64_PC32 cannot be used against shared object; recompile with -fPIC
8// CHECK: >>> defined in {{.*}}.so8// CHECK: >>> defined in {{.*}}.so
...@@ -11,4 +11,4 @@...@@ -11,4 +11,4 @@
11 .global _start11 .global _start
12_start:12_start:
13 .data13 .data
14 .long bar - .14 .long zed - .
deps/lld/test/ELF/x86-64-relax-got-abs.s+1-1
...@@ -1,7 +1,7 @@...@@ -1,7 +1,7 @@
1// REQUIRES: x861// REQUIRES: x86
2// RUN: llvm-mc -filetype=obj -relax-relocations -triple=x86_64-pc-linux %s \2// RUN: llvm-mc -filetype=obj -relax-relocations -triple=x86_64-pc-linux %s \
3// RUN: -o %t.o3// RUN: -o %t.o
4// RUN: ld.lld %t.o -o %t.so -shared4// RUN: ld.lld --hash-style=sysv %t.o -o %t.so -shared
5// RUN: llvm-objdump -d %t.so | FileCheck %s5// RUN: llvm-objdump -d %t.so | FileCheck %s
66
7// We used to fail trying to relax this into a pc relocation to an absolute7// We used to fail trying to relax this into a pc relocation to an absolute
deps/lld/test/ELF/x86-64-reloc-16.s+1-1
...@@ -9,6 +9,6 @@...@@ -9,6 +9,6 @@
9// CHECK-NEXT: 200000 429// CHECK-NEXT: 200000 42
1010
11// RUN: not ld.lld -shared %t %t2 -o %t4 2>&1 | FileCheck --check-prefix=ERROR %s11// RUN: not ld.lld -shared %t %t2 -o %t4 2>&1 | FileCheck --check-prefix=ERROR %s
12// ERROR: relocation R_X86_64_16 out of range12// ERROR: relocation R_X86_64_16 out of range: 65536 is not in [0, 65535]
1313
14.short foo14.short foo
deps/lld/test/ELF/x86-64-reloc-8.s+1-1
...@@ -9,6 +9,6 @@...@@ -9,6 +9,6 @@
9// CHECK-NEXT: 200000 429// CHECK-NEXT: 200000 42
1010
11// RUN: not ld.lld -shared %t %t2 -o %t4 2>&1 | FileCheck --check-prefix=ERROR %s11// RUN: not ld.lld -shared %t %t2 -o %t4 2>&1 | FileCheck --check-prefix=ERROR %s
12// ERROR: relocation R_X86_64_8 out of range12// ERROR: relocation R_X86_64_8 out of range: 256 is not in [0, 255]
1313
14.byte foo14.byte foo
deps/lld/test/ELF/x86-64-reloc-error.s+2-2
...@@ -6,5 +6,5 @@...@@ -6,5 +6,5 @@
6 movl $big, %edx6 movl $big, %edx
7 movq $foo - 0x1000000000000, %rdx7 movq $foo - 0x1000000000000, %rdx
88
9# CHECK: {{.*}}:(.text+0x1): relocation R_X86_64_32 out of range9# CHECK: {{.*}}:(.text+0x1): relocation R_X86_64_32 out of range: 68719476736 is not in [0, 4294967295]
10# CHECK: {{.*}}:(.text+0x8): relocation R_X86_64_32S out of range10# CHECK: {{.*}}:(.text+0x8): relocation R_X86_64_32S out of range: -281474976710656 is not in [-2147483648, 2147483647]
deps/lld/test/ELF/x86-64-reloc-range.s+1-1
...@@ -1,7 +1,7 @@...@@ -1,7 +1,7 @@
1// RUN: llvm-mc %s -o %t.o -triple x86_64-pc-linux -filetype=obj1// RUN: llvm-mc %s -o %t.o -triple x86_64-pc-linux -filetype=obj
2// RUN: not ld.lld %t.o -o %t.so -shared 2>&1 | FileCheck %s2// RUN: not ld.lld %t.o -o %t.so -shared 2>&1 | FileCheck %s
33
4// CHECK: {{.*}}:(.text+0x3): relocation R_X86_64_PC32 out of range4// CHECK: {{.*}}:(.text+0x3): relocation R_X86_64_PC32 out of range: 2147483648 is not in [-2147483648, 2147483647]
5// CHECK-NOT: relocation5// CHECK-NOT: relocation
66
7 lea foo(%rip), %rax7 lea foo(%rip), %rax
deps/lld/test/ELF/x86-64-tls-gd-local.s+1-1
...@@ -1,6 +1,6 @@...@@ -1,6 +1,6 @@
1// REQUIRES: x861// REQUIRES: x86
2// RUN: llvm-mc %s -o %t.o -filetype=obj -triple=x86_64-pc-linux2// RUN: llvm-mc %s -o %t.o -filetype=obj -triple=x86_64-pc-linux
3// RUN: ld.lld %t.o -o %t.so -shared3// RUN: ld.lld --hash-style=sysv %t.o -o %t.so -shared
4// RUN: llvm-readobj -r -s -section-data %t.so | FileCheck %s4// RUN: llvm-readobj -r -s -section-data %t.so | FileCheck %s
55
6 .byte 0x666 .byte 0x66
deps/lld/test/ELF/znotext-copy-relocation.s created+16
...@@ -0,0 +1,16 @@
1# REQUIRES: x86
2# RUN: llvm-mc -filetype=obj -triple=x86_64-pc-linux %s -o %t.o
3# RUN: llvm-mc -filetype=obj -triple=x86_64-pc-linux %p/Inputs/znotext-copy-relocations.s -o %t2.o
4# RUN: ld.lld %t2.o -o %t2.so -shared
5# RUN: ld.lld -z notext %t.o %t2.so -o %t
6# RUN: llvm-readobj -r %t | FileCheck %s
7
8# CHECK: Relocations [
9# CHECK-NEXT: Section ({{.*}}) .rela.dyn {
10# CHECK-NEXT: R_X86_64_COPY foo 0x0
11# CHECK-NEXT: }
12# CHECK-NEXT: ]
13
14.global _start
15_start:
16.long foo
deps/lld/test/ELF/znotext-plt-relocations-protected.s created+11
...@@ -0,0 +1,11 @@
1# REQUIRES: x86
2# RUN: llvm-mc -filetype=obj -triple=x86_64-pc-linux %s -o %t.o
3# RUN: llvm-mc -filetype=obj -triple=x86_64-pc-linux %p/Inputs/znotext-plt-relocations-protected.s -o %t2.o
4# RUN: ld.lld %t2.o -o %t2.so -shared
5# RUN: not ld.lld -z notext %t.o %t2.so -o %t 2>&1 | FileCheck %s
6
7# CHECK: error: cannot preempt symbol: foo
8
9.global _start
10_start:
11callq foo
deps/lld/test/ELF/znotext-plt-relocations.s created+20
...@@ -0,0 +1,20 @@
1# REQUIRES: x86
2# RUN: llvm-mc -filetype=obj -triple=x86_64-pc-linux %s -o %t.o
3# RUN: llvm-mc -filetype=obj -triple=x86_64-pc-linux %p/Inputs/znotext-plt-relocations.s -o %t2.o
4# RUN: ld.lld %t2.o -o %t2.so -shared
5# RUN: ld.lld -z notext %t.o %t2.so -o %t
6# RUN: llvm-readobj -r %t | FileCheck %s
7
8# CHECK: Relocations [
9# CHECK-NEXT: Section {{.*}} .rela.dyn {
10# CHECK-NEXT: R_X86_64_64 foo 0x0
11# CHECK-NEXT: }
12# CHECK-NEXT: Section {{.*}} .rela.plt {
13# CHECK-NEXT: R_X86_64_JUMP_SLOT atexit 0x0
14# CHECK-NEXT: }
15# CHECK-NEXT: ]
16
17.text
18_start:
19callq atexit
20.quad foo
deps/lld/test/ELF/znotext-weak-undef.s created+16
...@@ -0,0 +1,16 @@
1# REQUIRES: x86
2# RUN: llvm-mc -filetype=obj -triple=x86_64-pc-linux %s -o %t.o
3# RUN: not ld.lld -z notext -shared %t.o -o %t 2>&1 | FileCheck %s
4# CHECK: relocation R_X86_64_32 cannot be used against shared object; recompile with -fPIC
5
6# RUN: ld.lld -z notext %t.o -o %t
7# RUN: llvm-readobj -r %t | FileCheck %s --check-prefix=EXE
8# EXE: Relocations [
9# EXE-NEXT: ]
10
11.text
12.global foo
13.weak foo
14
15_start:
16mov $foo,%eax
deps/lld/test/MinGW/driver.test created+126
...@@ -0,0 +1,126 @@
1RUN: ld.lld -### foo.o -m i386pe | FileCheck -check-prefix=X86 %s
2X86: -out:a.exe
3X86-SAME: -machine:x86
4X86-SAME: -alternatename:__image_base__=___ImageBase
5X86-SAME: foo.o
6
7RUN: ld.lld -### foo.o -m i386pep | FileCheck -check-prefix=X64 %s
8X64: -out:a.exe
9X64-SAME: -machine:x64
10X64-SAME: -alternatename:__image_base__=__ImageBase
11X64-SAME: foo.o
12
13RUN: ld.lld -### foo.o -m thumb2pe | FileCheck -check-prefix=ARM %s
14ARM: -out:a.exe
15ARM-SAME: -machine:arm
16ARM-SAME: -alternatename:__image_base__=__ImageBase
17ARM-SAME: foo.o
18
19RUN: ld.lld -### foo.o -m arm64pe | FileCheck -check-prefix=ARM64 %s
20ARM64: -out:a.exe
21ARM64-SAME: -machine:arm64
22ARM64-SAME: -alternatename:__image_base__=__ImageBase
23ARM64-SAME: foo.o
24
25RUN: ld.lld -### foo.o -m i386pep -shared | FileCheck -check-prefix=SHARED %s
26RUN: ld.lld -### foo.o -m i386pep --shared | FileCheck -check-prefix=SHARED %s
27SHARED: -out:a.dll
28SHARED-SAME: -dll
29
30RUN: ld.lld -### foo.o -m i386pep -shared foo.def | FileCheck -check-prefix=DEF1 %s
31DEF1: -def:foo.def
32
33RUN: ld.lld -### foo.o -m i386pep -shared FOO.DEF | FileCheck -check-prefix=DEF2 %s
34DEF2: -def:FOO.DEF
35
36RUN: ld.lld -### foo.o -m i386pep -obar.exe | FileCheck -check-prefix=OUT %s
37RUN: ld.lld -### foo.o -m i386pep -o bar.exe | FileCheck -check-prefix=OUT %s
38OUT: -out:bar.exe
39
40RUN: ld.lld -### foo.o -m i386pep --out-implib bar | FileCheck -check-prefix=IMPLIB %s
41RUN: ld.lld -### foo.o -m i386pep --out-implib=bar | FileCheck -check-prefix=IMPLIB %s
42IMPLIB: -implib:bar
43
44RUN: ld.lld -### foo.o -m i386pep -out-implib bar | FileCheck -check-prefix=NOIMPLIB %s
45NOIMPLIB: -out:ut-implib
46
47RUN: ld.lld -### foo.o -m i386pep -e bar | FileCheck -check-prefix=ENTRY %s
48RUN: ld.lld -### foo.o -m i386pep -entry bar | FileCheck -check-prefix=ENTRY %s
49RUN: ld.lld -### foo.o -m i386pep --entry bar | FileCheck -check-prefix=ENTRY %s
50ENTRY: -entry:bar
51
52RUN: ld.lld -### foo.o -m i386pep -mllvm bar -mllvm baz | FileCheck -check-prefix=MLLVM %s
53MLLVM: -mllvm:bar -mllvm:baz
54
55RUN: ld.lld -### foo.o -m i386pep -subsystem console | FileCheck -check-prefix=SUBSYSTEM %s
56RUN: ld.lld -### foo.o -m i386pep --subsystem console | FileCheck -check-prefix=SUBSYSTEM %s
57SUBSYSTEM: -subsystem:console
58
59RUN: ld.lld -### foo.o -m i386pep -stack 4194304,8192 | FileCheck -check-prefix=STACK %s
60RUN: ld.lld -### foo.o -m i386pep --stack 4194304,8192 | FileCheck -check-prefix=STACK %s
61STACK: -stack:4194304,8192
62
63RUN: ld.lld -### foo.o -m i386pep -verbose | FileCheck -check-prefix=VERBOSE %s
64RUN: ld.lld -### foo.o -m i386pep --verbose | FileCheck -check-prefix=VERBOSE %s
65VERBOSE: -verbose
66
67RUN: ld.lld -### -shared -m i386pe -e _DllMainCRTStartup@12 foo.o | FileCheck -check-prefix I386-ENTRY %s
68I386-ENTRY: -entry:DllMainCRTStartup@12
69
70RUN: ld.lld -### -m i386pep foo.o --whole-archive bar.a --no-whole-archive baz.a | FileCheck -check-prefix WHOLE-ARCHIVE %s
71RUN: ld.lld -### -m i386pep foo.o -whole-archive bar.a -no-whole-archive baz.a | FileCheck -check-prefix WHOLE-ARCHIVE %s
72WHOLE-ARCHIVE: foo.o -wholearchive:bar.a baz.a
73
74RUN: ld.lld -### -m i386pep foo.o | FileCheck -check-prefix MINGW-FLAG %s
75MINGW-FLAG: -lldmingw
76
77RUN: ld.lld -### -m i386pep foo.o --export-all-symbols | FileCheck -check-prefix EXPORT-ALL %s
78EXPORT-ALL: -export-all-symbols
79
80RUN: ld.lld -### -m i386pep foo.o --output-def out.def | FileCheck -check-prefix OUTPUT-DEF %s
81OUTPUT-DEF: -output-def:out.def
82
83RUN: ld.lld -### -m i386pep foo.o -Xlink=-lldmap | FileCheck -check-prefix XLINK %s
84XLINK: -lldmap
85
86RUN: ld.lld -### -m i386pep foo.o | FileCheck -check-prefix DEBUG %s
87DEBUG: -debug:dwarf
88
89RUN: ld.lld -### -m i386pep foo.o -s | FileCheck -check-prefix STRIP %s
90RUN: ld.lld -### -m i386pep foo.o --strip-all | FileCheck -check-prefix STRIP %s
91STRIP-NOT: -debug:dwarf
92
93RUN: ld.lld -### -m i386pep foo.o --large-address-aware | FileCheck -check-prefix LARGE-ADDRESS-AWARE %s
94LARGE-ADDRESS-AWARE: -largeaddressaware
95
96RUN: ld.lld -### -m i386pe foo.o | FileCheck -check-prefix DEFAULT-DISABLE-FLAGS %s
97RUN: ld.lld -### -m i386pep foo.o | FileCheck -check-prefix DEFAULT-DISABLE-FLAGS %s
98DEFAULT-DISABLE-FLAGS: -dynamicbase:no
99RUN: ld.lld -### -m i386pe --dynamicbase foo.o | FileCheck -check-prefix NO-DEFAULT-DISABLE-FLAGS %s
100RUN: ld.lld -### -m i386pep -dynamicbase foo.o | FileCheck -check-prefix NO-DEFAULT-DISABLE-FLAGS %s
101RUN: ld.lld -### -m thumb2pe foo.o | FileCheck -check-prefix NO-DEFAULT-DISABLE-FLAGS %s
102RUN: ld.lld -### -m arm64pe foo.o | FileCheck -check-prefix NO-DEFAULT-DISABLE-FLAGS %s
103NO-DEFAULT-DISABLE-FLAGS-NOT: -dynamicbase:no
104
105RUN: ld.lld -### -m i386pep foo.o --image-base 0x1230000 | FileCheck -check-prefix IMAGE-BASE %s
106RUN: ld.lld -### -m i386pep foo.o -image-base 0x1230000 | FileCheck -check-prefix IMAGE-BASE %s
107IMAGE-BASE: -base:0x1230000
108
109RUN: ld.lld -### -m i386pep foo.o | FileCheck -check-prefix NO-GC-SECTIONS %s
110RUN: ld.lld -### -m i386pep foo.o --gc-sections --no-gc-sections | FileCheck -check-prefix NO-GC-SECTIONS %s
111NO-GC-SECTIONS: -opt:noref
112
113RUN: ld.lld -### -m i386pep foo.o --gc-sections | FileCheck -check-prefix GC-SECTIONS %s
114RUN: ld.lld -### -m i386pep foo.o -gc-sections | FileCheck -check-prefix GC-SECTIONS %s
115GC-SECTIONS: -opt:ref
116
117RUN: ld.lld -### -m i386pep foo.o | FileCheck -check-prefix ICF-NONE %s
118RUN: ld.lld -### -m i386pep foo.o --icf=none | FileCheck -check-prefix ICF-NONE %s
119RUN: ld.lld -### -m i386pep foo.o -icf=none | FileCheck -check-prefix ICF-NONE %s
120RUN: ld.lld -### -m i386pep foo.o --icf=safe | FileCheck -check-prefix ICF-NONE %s
121RUN: ld.lld -### -m i386pep foo.o -icf=safe | FileCheck -check-prefix ICF-NONE %s
122ICF-NONE: -opt:noicf
123
124RUN: ld.lld -### -m i386pep foo.o --icf=all | FileCheck -check-prefix ICF %s
125RUN: ld.lld -### -m i386pep foo.o -icf=all | FileCheck -check-prefix ICF %s
126ICF: -opt:icf
deps/lld/test/MinGW/lib.test created+21
...@@ -0,0 +1,21 @@
1RUN: rm -rf %t/lib
2RUN: mkdir -p %t/lib
3RUN: not ld.lld -### -m i386pep -lfoo -L%t/lib 2>&1 | FileCheck -check-prefix=LIB1 %s
4LIB1: unable to find library -lfoo
5
6RUN: echo > %t/lib/libfoo.dll.a
7RUN: ld.lld -### -m i386pep -lfoo -L%t/lib | FileCheck -check-prefix=LIB2 %s
8LIB2: libfoo.dll.a
9
10RUN: not ld.lld -### -m i386pep -Bstatic -lfoo -L%t/lib 2>&1 | FileCheck -check-prefix=LIB3 %s
11LIB3: unable to find library -lfoo
12
13RUN: echo > %t/lib/libfoo.a
14RUN: ld.lld -### -m i386pep -Bstatic -lfoo -L%t/lib | FileCheck -check-prefix=LIB4 %s
15LIB4: libfoo.a
16
17RUN: echo > %t/lib/libbar.dll.a
18RUN: echo > %t/lib/libbar.a
19RUN: ld.lld -### -m i386pep -Bstatic -lfoo -Bdynamic -lbar -L%t/lib | FileCheck -check-prefix=LIB5 %s
20LIB5: libfoo.a
21LIB5-SAME: libbar.dll.a
deps/lld/test/Unit/lit.cfg deleted-23
...@@ -1,23 +0,0 @@
1# -*- Python -*-
2
3# Configuration file for the 'lit' test runner.
4
5import os
6
7import lit.formats
8
9# name: The name of this test suite.
10config.name = 'lld-Unit'
11
12# suffixes: A list of file extensions to treat as test files.
13config.suffixes = []
14
15# test_source_root: The root path where unit test binaries are located.
16# test_exec_root: The root path where tests should be run.
17config.test_source_root = os.path.join(config.lld_obj_root, 'unittests')
18config.test_exec_root = config.test_source_root
19
20# testFormat: The test format to use to interpret tests.
21if not hasattr(config, 'llvm_build_mode'):
22 lit_config.fatal("unable to find llvm_build_mode value on config")
23config.test_format = lit.formats.GoogleTest(config.llvm_build_mode, 'Tests')
deps/lld/test/Unit/lit.cfg.py created+37
...@@ -0,0 +1,37 @@
1# -*- Python -*-
2
3# Configuration file for the 'lit' test runner.
4
5import os
6
7import lit.formats
8
9# name: The name of this test suite.
10config.name = 'lld-Unit'
11
12# suffixes: A list of file extensions to treat as test files.
13config.suffixes = []
14
15# test_source_root: The root path where unit test binaries are located.
16# test_exec_root: The root path where tests should be run.
17config.test_source_root = os.path.join(config.lld_obj_root, 'unittests')
18config.test_exec_root = config.test_source_root
19
20
21# Tweak the PATH to include the tools dir.
22path = os.path.pathsep.join((config.lld_tools_dir, config.llvm_tools_dir, config.environment['PATH']))
23config.environment['PATH'] = path
24
25path = os.path.pathsep.join((config.lld_libs_dir, config.llvm_libs_dir,
26 config.environment.get('LD_LIBRARY_PATH','')))
27config.environment['LD_LIBRARY_PATH'] = path
28
29# Propagate LLVM_SRC_ROOT into the environment.
30config.environment['LLVM_SRC_ROOT'] = config.llvm_src_root
31
32# Propagate PYTHON_EXECUTABLE into the environment
33config.environment['PYTHON_EXECUTABLE'] = sys.executable
34
35
36# testFormat: The test format to use to interpret tests.
37config.test_format = lit.formats.GoogleTest(config.llvm_build_mode, 'Tests')
deps/lld/test/Unit/lit.site.cfg.in deleted-25
...@@ -1,25 +0,0 @@
1@LIT_SITE_CFG_IN_HEADER@
2
3config.llvm_src_root = "@LLVM_SOURCE_DIR@"
4config.llvm_obj_root = "@LLVM_BINARY_DIR@"
5config.llvm_tools_dir = "@LLVM_TOOLS_DIR@"
6config.llvm_libs_dir = "@LLVM_LIBS_DIR@"
7config.llvm_build_mode = "@LLVM_BUILD_MODE@"
8config.lit_tools_dir = "@LLVM_LIT_TOOLS_DIR@"
9config.lld_obj_root = "@LLD_BINARY_DIR@"
10config.lld_src_root = "@LLD_SOURCE_DIR@"
11config.target_triple = "@TARGET_TRIPLE@"
12config.python_executable = "@PYTHON_EXECUTABLE@"
13
14# Support substitution of the tools and libs dirs with user parameters. This is
15# used when we can't determine the tool dir at configuration time.
16try:
17 config.llvm_tools_dir = config.llvm_tools_dir % lit_config.params
18 config.llvm_libs_dir = config.llvm_libs_dir % lit_config.params
19 config.llvm_build_mode = config.llvm_build_mode % lit_config.params
20except KeyError as e:
21 key, = e.args
22 lit_config.fatal("unable to find %r parameter, use '--param=%s=VALUE'" % (key,key))
23
24# Let the main config do the real work.
25lit_config.load_config(config, "@LLD_SOURCE_DIR@/test/Unit/lit.cfg")
deps/lld/test/Unit/lit.site.cfg.py.in created+27
...@@ -0,0 +1,27 @@
1@LIT_SITE_CFG_IN_HEADER@
2
3config.llvm_src_root = "@LLVM_SOURCE_DIR@"
4config.llvm_obj_root = "@LLVM_BINARY_DIR@"
5config.llvm_tools_dir = "@LLVM_TOOLS_DIR@"
6config.llvm_libs_dir = "@LLVM_LIBS_DIR@"
7config.llvm_build_mode = "@LLVM_BUILD_MODE@"
8config.lit_tools_dir = "@LLVM_LIT_TOOLS_DIR@"
9config.lld_obj_root = "@LLD_BINARY_DIR@"
10config.lld_src_root = "@LLD_SOURCE_DIR@"
11config.lld_libs_dir = "@LLVM_LIBRARY_OUTPUT_INTDIR@"
12config.lld_tools_dir = "@LLVM_RUNTIME_OUTPUT_INTDIR@"
13config.target_triple = "@TARGET_TRIPLE@"
14config.python_executable = "@PYTHON_EXECUTABLE@"
15
16# Support substitution of the tools and libs dirs with user parameters. This is
17# used when we can't determine the tool dir at configuration time.
18try:
19 config.llvm_tools_dir = config.llvm_tools_dir % lit_config.params
20 config.llvm_libs_dir = config.llvm_libs_dir % lit_config.params
21 config.llvm_build_mode = config.llvm_build_mode % lit_config.params
22except KeyError as e:
23 key, = e.args
24 lit_config.fatal("unable to find %r parameter, use '--param=%s=VALUE'" % (key,key))
25
26# Let the main config do the real work.
27lit_config.load_config(config, "@LLD_SOURCE_DIR@/test/Unit/lit.cfg.py")
deps/lld/test/lit.cfg deleted-270
...@@ -1,270 +0,0 @@
1# -*- Python -*-
2
3import os
4import platform
5import re
6import subprocess
7import locale
8
9import lit.formats
10import lit.util
11
12# Configuration file for the 'lit' test runner.
13
14# name: The name of this test suite.
15config.name = 'lld'
16
17# Tweak PATH for Win32
18if sys.platform in ['win32']:
19 # Seek sane tools in directories and set to $PATH.
20 path = getattr(config, 'lit_tools_dir', None)
21 path = lit_config.getToolsPath(path,
22 config.environment['PATH'],
23 ['cmp.exe', 'grep.exe', 'sed.exe'])
24 if path is not None:
25 path = os.path.pathsep.join((path,
26 config.environment['PATH']))
27 config.environment['PATH'] = path
28
29# Choose between lit's internal shell pipeline runner and a real shell. If
30# LIT_USE_INTERNAL_SHELL is in the environment, we use that as an override.
31use_lit_shell = os.environ.get("LIT_USE_INTERNAL_SHELL")
32if use_lit_shell:
33 # 0 is external, "" is default, and everything else is internal.
34 execute_external = (use_lit_shell == "0")
35else:
36 # Otherwise we default to internal on Windows and external elsewhere, as
37 # bash on Windows is usually very slow.
38 execute_external = (not sys.platform in ['win32'])
39
40
41# testFormat: The test format to use to interpret tests.
42#
43# For now we require '&&' between commands, until they get globally killed and
44# the test runner updated.
45config.test_format = lit.formats.ShTest(execute_external)
46
47# suffixes: A list of file extensions to treat as test files.
48config.suffixes = ['.ll', '.s', '.test', '.yaml', '.objtxt']
49
50# excludes: A list of directories to exclude from the testsuite. The 'Inputs'
51# subdirectories contain auxiliary inputs for various tests in their parent
52# directories.
53config.excludes = ['Inputs']
54
55# test_source_root: The root path where tests are located.
56config.test_source_root = os.path.dirname(__file__)
57
58# test_exec_root: The root path where tests should be run.
59lld_obj_root = getattr(config, 'lld_obj_root', None)
60if lld_obj_root is not None:
61 config.test_exec_root = os.path.join(lld_obj_root, 'test')
62
63# Set llvm_{src,obj}_root for use by others.
64config.llvm_src_root = getattr(config, 'llvm_src_root', None)
65config.llvm_obj_root = getattr(config, 'llvm_obj_root', None)
66
67# Tweak the PATH to include the tools dir and the scripts dir.
68if lld_obj_root is not None:
69 lld_tools_dir = getattr(config, 'lld_tools_dir', None)
70 if not lld_tools_dir:
71 lit_config.fatal('No LLD tools dir set!')
72 llvm_tools_dir = getattr(config, 'llvm_tools_dir', None)
73 if not llvm_tools_dir:
74 lit_config.fatal('No LLVM tools dir set!')
75 path = os.path.pathsep.join((lld_tools_dir, llvm_tools_dir, config.environment['PATH']))
76 path = os.path.pathsep.join((os.path.join(getattr(config, 'llvm_src_root', None),'test','Scripts'),path))
77
78 config.environment['PATH'] = path
79
80 lld_libs_dir = getattr(config, 'lld_libs_dir', None)
81 if not lld_libs_dir:
82 lit_config.fatal('No LLD libs dir set!')
83 llvm_libs_dir = getattr(config, 'llvm_libs_dir', None)
84 if not llvm_libs_dir:
85 lit_config.fatal('No LLVM libs dir set!')
86 path = os.path.pathsep.join((lld_libs_dir, llvm_libs_dir,
87 config.environment.get('LD_LIBRARY_PATH','')))
88 config.environment['LD_LIBRARY_PATH'] = path
89
90 # Propagate LLVM_SRC_ROOT into the environment.
91 config.environment['LLVM_SRC_ROOT'] = getattr(config, 'llvm_src_root', '')
92
93 # Propagate PYTHON_EXECUTABLE into the environment
94 config.environment['PYTHON_EXECUTABLE'] = getattr(config, 'python_executable',
95 '')
96###
97
98# Check that the object root is known.
99if config.test_exec_root is None:
100 # Otherwise, we haven't loaded the site specific configuration (the user is
101 # probably trying to run on a test file directly, and either the site
102 # configuration hasn't been created by the build system, or we are in an
103 # out-of-tree build situation).
104
105 # Check for 'lld_site_config' user parameter, and use that if available.
106 site_cfg = lit_config.params.get('lld_site_config', None)
107 if site_cfg and os.path.exists(site_cfg):
108 lit_config.load_config(config, site_cfg)
109 raise SystemExit
110
111 # Try to detect the situation where we are using an out-of-tree build by
112 # looking for 'llvm-config'.
113 #
114 # FIXME: I debated (i.e., wrote and threw away) adding logic to
115 # automagically generate the lit.site.cfg if we are in some kind of fresh
116 # build situation. This means knowing how to invoke the build system though,
117 # and I decided it was too much magic. We should solve this by just having
118 # the .cfg files generated during the configuration step.
119
120 llvm_config = lit.util.which('llvm-config', config.environment['PATH'])
121 if not llvm_config:
122 lit_config.fatal('No site specific configuration available!')
123
124 # Get the source and object roots.
125 llvm_src_root = subprocess.check_output(['llvm-config', '--src-root']).strip()
126 llvm_obj_root = subprocess.check_output(['llvm-config', '--obj-root']).strip()
127 lld_src_root = os.path.join(llvm_src_root, "tools", "lld")
128 lld_obj_root = os.path.join(llvm_obj_root, "tools", "lld")
129
130 # Validate that we got a tree which points to here, using the standard
131 # tools/lld layout.
132 this_src_root = os.path.dirname(config.test_source_root)
133 if os.path.realpath(lld_src_root) != os.path.realpath(this_src_root):
134 lit_config.fatal('No site specific configuration available!')
135
136 # Check that the site specific configuration exists.
137 site_cfg = os.path.join(lld_obj_root, 'test', 'lit.site.cfg')
138 if not os.path.exists(site_cfg):
139 lit_config.fatal(
140 'No site specific configuration available! You may need to '
141 'run "make test" in your lld build directory.')
142
143 # Okay, that worked. Notify the user of the automagic, and reconfigure.
144 lit_config.note('using out-of-tree build at %r' % lld_obj_root)
145 lit_config.load_config(config, site_cfg)
146 raise SystemExit
147
148# For each occurrence of a lld tool name as its own word, replace it
149# with the full path to the build directory holding that tool. This
150# ensures that we are testing the tools just built and not some random
151# tools that might happen to be in the user's PATH.
152
153# Regex assertions to reject neighbor hyphens/dots (seen in some tests).
154# For example, we want to prefix 'lld' and 'ld.lld' but not the 'lld' inside
155# of 'ld.lld'.
156NoPreJunk = r"(?<!(-|\.|/))"
157NoPostJunk = r"(?!(-|\.))"
158
159config.substitutions.append( (r"\bld.lld\b", 'ld.lld --full-shutdown') )
160
161tool_patterns = [r"\bFileCheck\b",
162 r"\bnot\b",
163 NoPreJunk + r"\blld\b" + NoPostJunk,
164 r"\bld.lld\b",
165 r"\blld-link\b",
166 r"\bllvm-as\b",
167 r"\bllvm-mc\b",
168 r"\bllvm-nm\b",
169 r"\bllvm-objdump\b",
170 r"\bllvm-pdbutil\b",
171 r"\bllvm-readobj\b",
172 r"\bobj2yaml\b",
173 r"\byaml2obj\b"]
174
175for pattern in tool_patterns:
176 # Extract the tool name from the pattern. This relies on the tool
177 # name being surrounded by \b word match operators. If the
178 # pattern starts with "| ", include it in the string to be
179 # substituted.
180 tool_match = re.match(r"^(\\)?((\| )?)\W+b([0-9A-Za-z-_\.]+)\\b\W*$",
181 pattern)
182 tool_pipe = tool_match.group(2)
183 tool_name = tool_match.group(4)
184 tool_path = lit.util.which(tool_name, config.environment['PATH'])
185 if not tool_path:
186 # Warn, but still provide a substitution.
187 lit_config.note('Did not find ' + tool_name + ' in ' + path)
188 tool_path = llvm_tools_dir + '/' + tool_name
189 config.substitutions.append((pattern, tool_pipe + tool_path))
190
191# Add site-specific substitutions.
192config.substitutions.append( ('%python', config.python_executable) )
193
194###
195
196# When running under valgrind, we mangle '-vg' onto the end of the triple so we
197# can check it with XFAIL and XTARGET.
198if lit_config.useValgrind:
199 config.target_triple += '-vg'
200
201# Shell execution
202if execute_external:
203 config.available_features.add('shell')
204
205# zlib compression library
206if config.have_zlib:
207 config.available_features.add("zlib")
208
209# Running on Darwin OS
210if platform.system() in ['Darwin']:
211 config.available_features.add('system-linker-mach-o')
212
213# Running on ELF based *nix
214if platform.system() in ['FreeBSD', 'Linux']:
215 config.available_features.add('system-linker-elf')
216
217# Running on Windows
218if platform.system() in ['Windows']:
219 config.available_features.add('system-windows')
220
221# Set if host-cxxabi's demangler can handle target's symbols.
222if platform.system() not in ['Windows']:
223 config.available_features.add('demangler')
224
225# llvm-config knows whether it is compiled with asserts (and)
226# whether we are operating in release/debug mode.
227import subprocess
228try:
229 llvm_config_cmd = \
230 subprocess.Popen([os.path.join(llvm_tools_dir, 'llvm-config'),
231 '--build-mode', '--assertion-mode', '--targets-built'],
232 stdout = subprocess.PIPE)
233except OSError as why:
234 print("Could not find llvm-config in " + llvm_tools_dir)
235 exit(42)
236
237llvm_config_output = llvm_config_cmd.stdout.read().decode('utf_8')
238llvm_config_output_list = llvm_config_output.split("\n")
239
240if re.search(r'DEBUG', llvm_config_output_list[0]):
241 config.available_features.add('debug')
242if re.search(r'ON', llvm_config_output_list[1]):
243 config.available_features.add('asserts')
244
245archs = llvm_config_output_list[2]
246if re.search(r'AArch64', archs):
247 config.available_features.add('aarch64')
248if re.search(r'AMDGPU', archs):
249 config.available_features.add('amdgpu')
250if re.search(r'ARM', archs):
251 config.available_features.add('arm')
252if re.search(r'AVR', archs):
253 config.available_features.add('avr')
254if re.search(r'Mips', archs):
255 config.available_features.add('mips')
256if re.search(r'PowerPC', archs):
257 config.available_features.add('ppc')
258if re.search(r'Sparc', archs):
259 config.available_features.add('sparc')
260if re.search(r'X86', archs):
261 config.available_features.add('x86')
262llvm_config_cmd.wait()
263
264# Set a fake constant version so that we get consitent output.
265config.environment['LLD_VERSION'] = 'LLD 1.0'
266
267# Indirectly check if the mt.exe Microsoft utility exists by searching for
268# cvtres, which always accompanies it.
269if lit.util.which('cvtres', config.environment['PATH']):
270 config.available_features.add('win_mt')
deps/lld/test/lit.cfg.py created+93
...@@ -0,0 +1,93 @@
1# -*- Python -*-
2
3import os
4import platform
5import re
6import subprocess
7import locale
8
9import lit.formats
10import lit.util
11
12from lit.llvm import llvm_config
13
14# Configuration file for the 'lit' test runner.
15
16# name: The name of this test suite.
17config.name = 'lld'
18
19# testFormat: The test format to use to interpret tests.
20#
21# For now we require '&&' between commands, until they get globally killed and
22# the test runner updated.
23config.test_format = lit.formats.ShTest(not llvm_config.use_lit_shell)
24
25# suffixes: A list of file extensions to treat as test files.
26config.suffixes = ['.ll', '.s', '.test', '.yaml', '.objtxt']
27
28# excludes: A list of directories to exclude from the testsuite. The 'Inputs'
29# subdirectories contain auxiliary inputs for various tests in their parent
30# directories.
31config.excludes = ['Inputs']
32
33# test_source_root: The root path where tests are located.
34config.test_source_root = os.path.dirname(__file__)
35
36config.test_exec_root = os.path.join(config.lld_obj_root, 'test')
37
38llvm_config.use_default_substitutions()
39llvm_config.use_lld()
40
41tool_patterns = [
42 'llc', 'llvm-as', 'llvm-mc', 'llvm-nm',
43 'llvm-objdump', 'llvm-pdbutil', 'llvm-readobj', 'obj2yaml', 'yaml2obj']
44
45llvm_config.add_tool_substitutions(tool_patterns)
46
47# When running under valgrind, we mangle '-vg' onto the end of the triple so we
48# can check it with XFAIL and XTARGET.
49if lit_config.useValgrind:
50 config.target_triple += '-vg'
51
52# Running on ELF based *nix
53if platform.system() in ['FreeBSD', 'Linux']:
54 config.available_features.add('system-linker-elf')
55
56# Set if host-cxxabi's demangler can handle target's symbols.
57if platform.system() not in ['Windows']:
58 config.available_features.add('demangler')
59
60llvm_config.feature_config(
61 [('--build-mode', {'DEBUG': 'debug'}),
62 ('--assertion-mode', {'ON': 'asserts'}),
63 ('--targets-built', {'AArch64': 'aarch64',
64 'AMDGPU': 'amdgpu',
65 'ARM': 'arm',
66 'AVR': 'avr',
67 'Mips': 'mips',
68 'PowerPC': 'ppc',
69 'Sparc': 'sparc',
70 'WebAssembly': 'wasm',
71 'X86': 'x86'})
72 ])
73
74# Set a fake constant version so that we get consitent output.
75config.environment['LLD_VERSION'] = 'LLD 1.0'
76
77# Indirectly check if the mt.exe Microsoft utility exists by searching for
78# cvtres, which always accompanies it. Alternatively, check if we can use
79# libxml2 to merge manifests.
80if (lit.util.which('cvtres', config.environment['PATH'])) or \
81 (config.llvm_libxml2_enabled == '1'):
82 config.available_features.add('manifest_tool')
83
84if (config.llvm_libxml2_enabled == '1'):
85 config.available_features.add('libxml2')
86
87tar_executable = lit.util.which('tar', config.environment['PATH'])
88if tar_executable:
89 tar_version = subprocess.Popen(
90 [tar_executable, '--version'], stdout=subprocess.PIPE, env={'LANG': 'C'})
91 if 'GNU tar' in tar_version.stdout.read().decode():
92 config.available_features.add('gnutar')
93 tar_version.wait()
deps/lld/test/lit.site.cfg.in deleted-25
...@@ -1,25 +0,0 @@
1@LIT_SITE_CFG_IN_HEADER@
2
3config.llvm_src_root = "@LLVM_SOURCE_DIR@"
4config.llvm_obj_root = "@LLVM_BINARY_DIR@"
5config.llvm_tools_dir = "@LLVM_TOOLS_DIR@"
6config.llvm_libs_dir = "@LLVM_LIBS_DIR@"
7config.lit_tools_dir = "@LLVM_LIT_TOOLS_DIR@"
8config.lld_obj_root = "@LLD_BINARY_DIR@"
9config.lld_libs_dir = "@LLVM_LIBRARY_OUTPUT_INTDIR@"
10config.lld_tools_dir = "@LLVM_RUNTIME_OUTPUT_INTDIR@"
11config.target_triple = "@TARGET_TRIPLE@"
12config.python_executable = "@PYTHON_EXECUTABLE@"
13config.have_zlib = @HAVE_LIBZ@
14
15# Support substitution of the tools and libs dirs with user parameters. This is
16# used when we can't determine the tool dir at configuration time.
17try:
18 config.llvm_tools_dir = config.llvm_tools_dir % lit_config.params
19 config.llvm_libs_dir = config.llvm_libs_dir % lit_config.params
20except KeyError as e:
21 key, = e.args
22 lit_config.fatal("unable to find %r parameter, use '--param=%s=VALUE'" % (key,key))
23
24# Let the main config do the real work.
25lit_config.load_config(config, "@LLD_SOURCE_DIR@/test/lit.cfg")
deps/lld/test/lit.site.cfg.py.in created+28
...@@ -0,0 +1,28 @@
1@LIT_SITE_CFG_IN_HEADER@
2
3config.llvm_src_root = "@LLVM_SOURCE_DIR@"
4config.llvm_obj_root = "@LLVM_BINARY_DIR@"
5config.llvm_tools_dir = "@LLVM_TOOLS_DIR@"
6config.llvm_libs_dir = "@LLVM_LIBS_DIR@"
7config.llvm_libxml2_enabled = "@LLVM_LIBXML2_ENABLED@"
8config.lit_tools_dir = "@LLVM_LIT_TOOLS_DIR@"
9config.lld_obj_root = "@LLD_BINARY_DIR@"
10config.lld_libs_dir = "@LLVM_LIBRARY_OUTPUT_INTDIR@"
11config.lld_tools_dir = "@LLVM_RUNTIME_OUTPUT_INTDIR@"
12config.target_triple = "@TARGET_TRIPLE@"
13config.python_executable = "@PYTHON_EXECUTABLE@"
14config.have_zlib = @HAVE_LIBZ@
15
16# Support substitution of the tools and libs dirs with user parameters. This is
17# used when we can't determine the tool dir at configuration time.
18try:
19 config.llvm_tools_dir = config.llvm_tools_dir % lit_config.params
20 config.llvm_libs_dir = config.llvm_libs_dir % lit_config.params
21except KeyError as e:
22 key, = e.args
23 lit_config.fatal("unable to find %r parameter, use '--param=%s=VALUE'" % (key,key))
24
25@LIT_SITE_CFG_IN_FOOTER@
26
27# Let the main config do the real work.
28lit_config.load_config(config, "@LLD_SOURCE_DIR@/test/lit.cfg.py")
deps/lld/test/wasm/Inputs/archive1.ll created+7
...@@ -0,0 +1,7 @@
1declare i32 @bar() local_unnamed_addr #1
2
3define i32 @foo() local_unnamed_addr #0 {
4entry:
5 %call = tail call i32 @bar() #2
6 ret i32 %call
7}
deps/lld/test/wasm/Inputs/archive2.ll created+7
...@@ -0,0 +1,7 @@
1declare i32 @foo() local_unnamed_addr #1
2
3define i32 @bar() local_unnamed_addr #0 {
4entry:
5 %call = tail call i32 @foo() #2
6 ret i32 %call
7}
deps/lld/test/wasm/Inputs/call-indirect.ll created+17
...@@ -0,0 +1,17 @@
1@indirect_bar = internal local_unnamed_addr global i32 ()* @bar, align 4
2@indirect_foo = internal local_unnamed_addr global i32 ()* @foo, align 4
3
4declare i32 @foo() local_unnamed_addr
5
6define i32 @bar() {
7entry:
8 ret i32 1
9}
10
11define void @call_bar_indirect() local_unnamed_addr #1 {
12entry:
13 %0 = load i32 ()*, i32 ()** @indirect_bar, align 4
14 %1 = load i32 ()*, i32 ()** @indirect_foo, align 4
15 %call = tail call i32 %0() #2
16 ret void
17}
deps/lld/test/wasm/Inputs/global-ctor-dtor.ll created+14
...@@ -0,0 +1,14 @@
1define hidden void @myctor() {
2entry:
3 ret void
4}
5
6define hidden void @mydtor() {
7entry:
8 %ptr = alloca i32
9 ret void
10}
11
12@llvm.global_ctors = appending global [1 x { i32, void ()*, i8* }] [{ i32, void ()*, i8* } { i32 65535, void ()* @myctor, i8* null }]
13
14@llvm.global_dtors = appending global [1 x { i32, void ()*, i8* }] [{ i32, void ()*, i8* } { i32 65535, void ()* @mydtor, i8* null }]
deps/lld/test/wasm/Inputs/hello.ll created+15
...@@ -0,0 +1,15 @@
1; Wasm module generated from the following C code:
2; void puts(const char*);
3; void hello() { puts("hello\n"); }
4
5@hello_str = unnamed_addr constant [7 x i8] c"hello\0A\00", align 1
6
7; Function Attrs: nounwind
8define hidden void @hello() local_unnamed_addr #0 {
9entry:
10 tail call void @puts(i8* getelementptr inbounds ([7 x i8], [7 x i8]* @hello_str, i32 0, i32 0))
11 ret void
12}
13
14; Function Attrs: nounwind
15declare void @puts(i8* nocapture readonly) local_unnamed_addr #1
deps/lld/test/wasm/Inputs/hidden.ll created+11
...@@ -0,0 +1,11 @@
1; Function Attrs: norecurse nounwind readnone
2define hidden i32 @archiveHidden() #0 {
3entry:
4 ret i32 0
5}
6
7; Function Attrs: norecurse nounwind readnone
8define i32 @archiveDefault() #1 {
9entry:
10 ret i32 0
11}
deps/lld/test/wasm/Inputs/many-funcs.ll created+776
...@@ -0,0 +1,776 @@
1@g0 = global i32 1, align 4
2@foo = global i32 1, align 4
3
4define i32 @f1() {
5entry:
6 %0 = load i32, i32* @foo, align 4
7 ret i32 %0
8}
9
10define i32 @f2() {
11entry:
12 %0 = load i32, i32* @foo, align 4
13 ret i32 %0
14}
15
16define i32 @f3() {
17entry:
18 %0 = load i32, i32* @foo, align 4
19 ret i32 %0
20}
21
22define i32 @f4() {
23entry:
24 %0 = load i32, i32* @foo, align 4
25 ret i32 %0
26}
27
28define i32 @f5() {
29entry:
30 %0 = load i32, i32* @foo, align 4
31 ret i32 %0
32}
33
34define i32 @f6() {
35entry:
36 %0 = load i32, i32* @foo, align 4
37 ret i32 %0
38}
39
40define i32 @f7() {
41entry:
42 %0 = load i32, i32* @foo, align 4
43 ret i32 %0
44}
45
46define i32 @f8() {
47entry:
48 %0 = load i32, i32* @foo, align 4
49 ret i32 %0
50}
51
52define i32 @f9() {
53entry:
54 %0 = load i32, i32* @foo, align 4
55 ret i32 %0
56}
57
58define i32 @f10() {
59entry:
60 %0 = load i32, i32* @foo, align 4
61 ret i32 %0
62}
63
64define i32 @f11() {
65entry:
66 %0 = load i32, i32* @foo, align 4
67 ret i32 %0
68}
69
70define i32 @f12() {
71entry:
72 %0 = load i32, i32* @foo, align 4
73 ret i32 %0
74}
75
76define i32 @f13() {
77entry:
78 %0 = load i32, i32* @foo, align 4
79 ret i32 %0
80}
81
82define i32 @f14() {
83entry:
84 %0 = load i32, i32* @foo, align 4
85 ret i32 %0
86}
87
88define i32 @f15() {
89entry:
90 %0 = load i32, i32* @foo, align 4
91 ret i32 %0
92}
93
94define i32 @f16() {
95entry:
96 %0 = load i32, i32* @foo, align 4
97 ret i32 %0
98}
99
100define i32 @f17() {
101entry:
102 %0 = load i32, i32* @foo, align 4
103 ret i32 %0
104}
105
106define i32 @f18() {
107entry:
108 %0 = load i32, i32* @foo, align 4
109 ret i32 %0
110}
111
112define i32 @f19() {
113entry:
114 %0 = load i32, i32* @foo, align 4
115 ret i32 %0
116}
117
118define i32 @f20() {
119entry:
120 %0 = load i32, i32* @foo, align 4
121 ret i32 %0
122}
123
124define i32 @f21() {
125entry:
126 %0 = load i32, i32* @foo, align 4
127 ret i32 %0
128}
129
130define i32 @f22() {
131entry:
132 %0 = load i32, i32* @foo, align 4
133 ret i32 %0
134}
135
136define i32 @f23() {
137entry:
138 %0 = load i32, i32* @foo, align 4
139 ret i32 %0
140}
141
142define i32 @f24() {
143entry:
144 %0 = load i32, i32* @foo, align 4
145 ret i32 %0
146}
147
148define i32 @f25() {
149entry:
150 %0 = load i32, i32* @foo, align 4
151 ret i32 %0
152}
153
154define i32 @f26() {
155entry:
156 %0 = load i32, i32* @foo, align 4
157 ret i32 %0
158}
159
160define i32 @f27() {
161entry:
162 %0 = load i32, i32* @foo, align 4
163 ret i32 %0
164}
165
166define i32 @f28() {
167entry:
168 %0 = load i32, i32* @foo, align 4
169 ret i32 %0
170}
171
172define i32 @f29() {
173entry:
174 %0 = load i32, i32* @foo, align 4
175 ret i32 %0
176}
177
178define i32 @f30() {
179entry:
180 %0 = load i32, i32* @foo, align 4
181 ret i32 %0
182}
183
184define i32 @f31() {
185entry:
186 %0 = load i32, i32* @foo, align 4
187 ret i32 %0
188}
189
190define i32 @f32() {
191entry:
192 %0 = load i32, i32* @foo, align 4
193 ret i32 %0
194}
195
196define i32 @f33() {
197entry:
198 %0 = load i32, i32* @foo, align 4
199 ret i32 %0
200}
201
202define i32 @f34() {
203entry:
204 %0 = load i32, i32* @foo, align 4
205 ret i32 %0
206}
207
208define i32 @f35() {
209entry:
210 %0 = load i32, i32* @foo, align 4
211 ret i32 %0
212}
213
214define i32 @f36() {
215entry:
216 %0 = load i32, i32* @foo, align 4
217 ret i32 %0
218}
219
220define i32 @f37() {
221entry:
222 %0 = load i32, i32* @foo, align 4
223 ret i32 %0
224}
225
226define i32 @f38() {
227entry:
228 %0 = load i32, i32* @foo, align 4
229 ret i32 %0
230}
231
232define i32 @f39() {
233entry:
234 %0 = load i32, i32* @foo, align 4
235 ret i32 %0
236}
237
238define i32 @f40() {
239entry:
240 %0 = load i32, i32* @foo, align 4
241 ret i32 %0
242}
243
244define i32 @f41() {
245entry:
246 %0 = load i32, i32* @foo, align 4
247 ret i32 %0
248}
249
250define i32 @f42() {
251entry:
252 %0 = load i32, i32* @foo, align 4
253 ret i32 %0
254}
255
256define i32 @f43() {
257entry:
258 %0 = load i32, i32* @foo, align 4
259 ret i32 %0
260}
261
262define i32 @f44() {
263entry:
264 %0 = load i32, i32* @foo, align 4
265 ret i32 %0
266}
267
268define i32 @f45() {
269entry:
270 %0 = load i32, i32* @foo, align 4
271 ret i32 %0
272}
273
274define i32 @f46() {
275entry:
276 %0 = load i32, i32* @foo, align 4
277 ret i32 %0
278}
279
280define i32 @f47() {
281entry:
282 %0 = load i32, i32* @foo, align 4
283 ret i32 %0
284}
285
286define i32 @f48() {
287entry:
288 %0 = load i32, i32* @foo, align 4
289 ret i32 %0
290}
291
292define i32 @f49() {
293entry:
294 %0 = load i32, i32* @foo, align 4
295 ret i32 %0
296}
297
298define i32 @f50() {
299entry:
300 %0 = load i32, i32* @foo, align 4
301 ret i32 %0
302}
303
304define i32 @f51() {
305entry:
306 %0 = load i32, i32* @foo, align 4
307 ret i32 %0
308}
309
310define i32 @f52() {
311entry:
312 %0 = load i32, i32* @foo, align 4
313 ret i32 %0
314}
315
316define i32 @f53() {
317entry:
318 %0 = load i32, i32* @foo, align 4
319 ret i32 %0
320}
321
322define i32 @f54() {
323entry:
324 %0 = load i32, i32* @foo, align 4
325 ret i32 %0
326}
327
328define i32 @f55() {
329entry:
330 %0 = load i32, i32* @foo, align 4
331 ret i32 %0
332}
333
334define i32 @f56() {
335entry:
336 %0 = load i32, i32* @foo, align 4
337 ret i32 %0
338}
339
340define i32 @f57() {
341entry:
342 %0 = load i32, i32* @foo, align 4
343 ret i32 %0
344}
345
346define i32 @f58() {
347entry:
348 %0 = load i32, i32* @foo, align 4
349 ret i32 %0
350}
351
352define i32 @f59() {
353entry:
354 %0 = load i32, i32* @foo, align 4
355 ret i32 %0
356}
357
358define i32 @f60() {
359entry:
360 %0 = load i32, i32* @foo, align 4
361 ret i32 %0
362}
363
364define i32 @f61() {
365entry:
366 %0 = load i32, i32* @foo, align 4
367 ret i32 %0
368}
369
370define i32 @f62() {
371entry:
372 %0 = load i32, i32* @foo, align 4
373 ret i32 %0
374}
375
376define i32 @f63() {
377entry:
378 %0 = load i32, i32* @foo, align 4
379 ret i32 %0
380}
381
382define i32 @f64() {
383entry:
384 %0 = load i32, i32* @foo, align 4
385 ret i32 %0
386}
387
388define i32 @f65() {
389entry:
390 %0 = load i32, i32* @foo, align 4
391 ret i32 %0
392}
393
394define i32 @f66() {
395entry:
396 %0 = load i32, i32* @foo, align 4
397 ret i32 %0
398}
399
400define i32 @f67() {
401entry:
402 %0 = load i32, i32* @foo, align 4
403 ret i32 %0
404}
405
406define i32 @f68() {
407entry:
408 %0 = load i32, i32* @foo, align 4
409 ret i32 %0
410}
411
412define i32 @f69() {
413entry:
414 %0 = load i32, i32* @foo, align 4
415 ret i32 %0
416}
417
418define i32 @f70() {
419entry:
420 %0 = load i32, i32* @foo, align 4
421 ret i32 %0
422}
423
424define i32 @f71() {
425entry:
426 %0 = load i32, i32* @foo, align 4
427 ret i32 %0
428}
429
430define i32 @f72() {
431entry:
432 %0 = load i32, i32* @foo, align 4
433 ret i32 %0
434}
435
436define i32 @f73() {
437entry:
438 %0 = load i32, i32* @foo, align 4
439 ret i32 %0
440}
441
442define i32 @f74() {
443entry:
444 %0 = load i32, i32* @foo, align 4
445 ret i32 %0
446}
447
448define i32 @f75() {
449entry:
450 %0 = load i32, i32* @foo, align 4
451 ret i32 %0
452}
453
454define i32 @f76() {
455entry:
456 %0 = load i32, i32* @foo, align 4
457 ret i32 %0
458}
459
460define i32 @f77() {
461entry:
462 %0 = load i32, i32* @foo, align 4
463 ret i32 %0
464}
465
466define i32 @f78() {
467entry:
468 %0 = load i32, i32* @foo, align 4
469 ret i32 %0
470}
471
472define i32 @f79() {
473entry:
474 %0 = load i32, i32* @foo, align 4
475 ret i32 %0
476}
477
478define i32 @f80() {
479entry:
480 %0 = load i32, i32* @foo, align 4
481 ret i32 %0
482}
483
484define i32 @f81() {
485entry:
486 %0 = load i32, i32* @foo, align 4
487 ret i32 %0
488}
489
490define i32 @f82() {
491entry:
492 %0 = load i32, i32* @foo, align 4
493 ret i32 %0
494}
495
496define i32 @f83() {
497entry:
498 %0 = load i32, i32* @foo, align 4
499 ret i32 %0
500}
501
502define i32 @f84() {
503entry:
504 %0 = load i32, i32* @foo, align 4
505 ret i32 %0
506}
507
508define i32 @f85() {
509entry:
510 %0 = load i32, i32* @foo, align 4
511 ret i32 %0
512}
513
514define i32 @f86() {
515entry:
516 %0 = load i32, i32* @foo, align 4
517 ret i32 %0
518}
519
520define i32 @f87() {
521entry:
522 %0 = load i32, i32* @foo, align 4
523 ret i32 %0
524}
525
526define i32 @f88() {
527entry:
528 %0 = load i32, i32* @foo, align 4
529 ret i32 %0
530}
531
532define i32 @f89() {
533entry:
534 %0 = load i32, i32* @foo, align 4
535 ret i32 %0
536}
537
538define i32 @f90() {
539entry:
540 %0 = load i32, i32* @foo, align 4
541 ret i32 %0
542}
543
544define i32 @f91() {
545entry:
546 %0 = load i32, i32* @foo, align 4
547 ret i32 %0
548}
549
550define i32 @f92() {
551entry:
552 %0 = load i32, i32* @foo, align 4
553 ret i32 %0
554}
555
556define i32 @f93() {
557entry:
558 %0 = load i32, i32* @foo, align 4
559 ret i32 %0
560}
561
562define i32 @f94() {
563entry:
564 %0 = load i32, i32* @foo, align 4
565 ret i32 %0
566}
567
568define i32 @f95() {
569entry:
570 %0 = load i32, i32* @foo, align 4
571 ret i32 %0
572}
573
574define i32 @f96() {
575entry:
576 %0 = load i32, i32* @foo, align 4
577 ret i32 %0
578}
579
580define i32 @f97() {
581entry:
582 %0 = load i32, i32* @foo, align 4
583 ret i32 %0
584}
585
586define i32 @f98() {
587entry:
588 %0 = load i32, i32* @foo, align 4
589 ret i32 %0
590}
591
592define i32 @f99() {
593entry:
594 %0 = load i32, i32* @foo, align 4
595 ret i32 %0
596}
597
598define i32 @f100() {
599entry:
600 %0 = load i32, i32* @foo, align 4
601 ret i32 %0
602}
603
604define i32 @f101() {
605entry:
606 %0 = load i32, i32* @foo, align 4
607 ret i32 %0
608}
609
610define i32 @f102() {
611entry:
612 %0 = load i32, i32* @foo, align 4
613 ret i32 %0
614}
615
616define i32 @f103() {
617entry:
618 %0 = load i32, i32* @foo, align 4
619 ret i32 %0
620}
621
622define i32 @f104() {
623entry:
624 %0 = load i32, i32* @foo, align 4
625 ret i32 %0
626}
627
628define i32 @f105() {
629entry:
630 %0 = load i32, i32* @foo, align 4
631 ret i32 %0
632}
633
634define i32 @f106() {
635entry:
636 %0 = load i32, i32* @foo, align 4
637 ret i32 %0
638}
639
640define i32 @f107() {
641entry:
642 %0 = load i32, i32* @foo, align 4
643 ret i32 %0
644}
645
646define i32 @f108() {
647entry:
648 %0 = load i32, i32* @foo, align 4
649 ret i32 %0
650}
651
652define i32 @f109() {
653entry:
654 %0 = load i32, i32* @foo, align 4
655 ret i32 %0
656}
657
658define i32 @f110() {
659entry:
660 %0 = load i32, i32* @foo, align 4
661 ret i32 %0
662}
663
664define i32 @f111() {
665entry:
666 %0 = load i32, i32* @foo, align 4
667 ret i32 %0
668}
669
670define i32 @f112() {
671entry:
672 %0 = load i32, i32* @foo, align 4
673 ret i32 %0
674}
675
676define i32 @f113() {
677entry:
678 %0 = load i32, i32* @foo, align 4
679 ret i32 %0
680}
681
682define i32 @f114() {
683entry:
684 %0 = load i32, i32* @foo, align 4
685 ret i32 %0
686}
687
688define i32 @f115() {
689entry:
690 %0 = load i32, i32* @foo, align 4
691 ret i32 %0
692}
693
694define i32 @f116() {
695entry:
696 %0 = load i32, i32* @foo, align 4
697 ret i32 %0
698}
699
700define i32 @f117() {
701entry:
702 %0 = load i32, i32* @foo, align 4
703 ret i32 %0
704}
705
706define i32 @f118() {
707entry:
708 %0 = load i32, i32* @foo, align 4
709 ret i32 %0
710}
711
712define i32 @f119() {
713entry:
714 %0 = load i32, i32* @foo, align 4
715 ret i32 %0
716}
717
718define i32 @f120() {
719entry:
720 %0 = load i32, i32* @foo, align 4
721 ret i32 %0
722}
723
724define i32 @f121() {
725entry:
726 %0 = load i32, i32* @foo, align 4
727 ret i32 %0
728}
729
730define i32 @f122() {
731entry:
732 %0 = load i32, i32* @foo, align 4
733 ret i32 %0
734}
735
736define i32 @f123() {
737entry:
738 %0 = load i32, i32* @foo, align 4
739 ret i32 %0
740}
741
742define i32 @f124() {
743entry:
744 %0 = load i32, i32* @foo, align 4
745 ret i32 %0
746}
747
748define i32 @f125() {
749entry:
750 %0 = load i32, i32* @foo, align 4
751 ret i32 %0
752}
753
754define i32 @f126() {
755entry:
756 %0 = load i32, i32* @foo, align 4
757 ret i32 %0
758}
759
760define i32 @f127() {
761entry:
762 %0 = load i32, i32* @foo, align 4
763 ret i32 %0
764}
765
766define i32 @f128() {
767entry:
768 %0 = load i32, i32* @g0, align 4
769 ret i32 %0
770}
771
772define i32 @f129() {
773entry:
774 %0 = load i32, i32* @g0, align 4
775 ret i32 %0
776}
deps/lld/test/wasm/Inputs/ret32.ll created+6
...@@ -0,0 +1,6 @@
1; Function Attrs: norecurse nounwind readnone
2define i32 @ret32(float %arg) #0 {
3entry:
4 ret i32 0
5 ; ptrtoint (i32 (float)* @ret32 to i32)
6}
deps/lld/test/wasm/Inputs/ret64.ll created+4
...@@ -0,0 +1,4 @@
1define i64 @ret64(double %arg) local_unnamed_addr #0 {
2entry:
3 ret i64 1
4}
deps/lld/test/wasm/Inputs/weak-alias.ll created+37
...@@ -0,0 +1,37 @@
1; Function Attrs: norecurse nounwind readnone
2define i32 @direct_fn() #0 {
3entry:
4 ret i32 0
5}
6
7@alias_fn = weak alias i32 (), i32 ()* @direct_fn
8
9define i32 @call_direct() #0 {
10entry:
11 %call = call i32 @direct_fn()
12 ret i32 %call
13}
14
15define i32 @call_alias() #0 {
16entry:
17 %call = call i32 @alias_fn()
18 ret i32 %call
19}
20
21define i32 @call_alias_ptr() #0 {
22entry:
23 %fnptr = alloca i32 ()*, align 8
24 store i32 ()* @alias_fn, i32 ()** %fnptr, align 8
25 %0 = load i32 ()*, i32 ()** %fnptr, align 8
26 %call = call i32 %0()
27 ret i32 %call
28}
29
30define i32 @call_direct_ptr() #0 {
31entry:
32 %fnptr = alloca i32 ()*, align 8
33 store i32 ()* @direct_fn, i32 ()** %fnptr, align 8
34 %0 = load i32 ()*, i32 ()** %fnptr, align 8
35 %call = call i32 %0()
36 ret i32 %call
37}
deps/lld/test/wasm/Inputs/weak-symbol1.ll created+11
...@@ -0,0 +1,11 @@
1define weak i32 @weakFn() #0 {
2entry:
3 ret i32 1
4}
5
6define i32 @exportWeak1() {
7entry:
8 ret i32 ptrtoint (i32 ()* @weakFn to i32)
9}
10
11@weakGlobal = weak global i32 1
deps/lld/test/wasm/Inputs/weak-symbol2.ll created+11
...@@ -0,0 +1,11 @@
1define weak i32 @weakFn() #0 {
2entry:
3 ret i32 2
4}
5
6define i32 @exportWeak2() {
7entry:
8 ret i32 ptrtoint (i32 ()* @weakFn to i32)
9}
10
11@weakGlobal = weak global i32 2
deps/lld/test/wasm/archive.ll created+31
...@@ -0,0 +1,31 @@
1; RUN: llc -filetype=obj -mtriple=wasm32-unknown-unknown-wasm %s -o %t.o
2; RUN: llc -filetype=obj -mtriple=wasm32-unknown-unknown-wasm %S/Inputs/archive1.ll -o %t.a1.o
3; RUN: llc -filetype=obj -mtriple=wasm32-unknown-unknown-wasm %S/Inputs/archive2.ll -o %t.a2.o
4; RUN: llc -filetype=obj -mtriple=wasm32-unknown-unknown-wasm %S/Inputs/hello.ll -o %t.a3.o
5; RUN: llvm-ar rcs %t.a %t.a1.o %t.a2.o %t.a3.o
6; RUN: lld -flavor wasm %t.a %t.o -o %t.wasm
7; RUN: llvm-nm -a %t.wasm | FileCheck %s
8
9declare i32 @foo() local_unnamed_addr #1
10
11define i32 @_start() local_unnamed_addr #0 {
12entry:
13 %call = tail call i32 @foo() #2
14 ret i32 %call
15}
16
17; Verify that multually dependant object files in an archive is handled
18; correctly.
19
20; CHECK: 00000002 T _start
21; CHECK-NEXT: 00000002 T _start
22; CHECK-NEXT: 00000000 T bar
23; CHECK-NEXT: 00000000 T bar
24; CHECK-NEXT: 00000001 T foo
25; CHECK-NEXT: 00000001 T foo
26
27; Verify that symbols from unused objects don't appear in the symbol table
28; CHECK-NOT: hello
29
30; Specifying the same archive twice is allowed.
31; RUN: lld -flavor wasm %t.a %t.a %t.o -o %t.wasm
deps/lld/test/wasm/call-indirect.ll created+132
...@@ -0,0 +1,132 @@
1; RUN: llc -filetype=obj -mtriple=wasm32-unknown-unknown-wasm %p/Inputs/call-indirect.ll -o %t2.o
2; RUN: llc -filetype=obj -mtriple=wasm32-unknown-unknown-wasm %s -o %t.o
3; RUN: lld -flavor wasm -o %t.wasm %t2.o %t.o
4; RUN: obj2yaml %t.wasm | FileCheck %s
5
6; bitcode generated from the following C code:
7; int foo(void) { return 1; }
8; int (*indirect_func)(void) = &foo;
9; void _start(void) { indirect_func(); }
10
11@indirect_func = local_unnamed_addr global i32 ()* @foo, align 4
12
13; Function Attrs: norecurse nounwind readnone
14define i32 @foo() #0 {
15entry:
16 ret i32 2
17}
18
19; Function Attrs: nounwind
20define i32 @_start() local_unnamed_addr #1 {
21entry:
22 %0 = load i32 ()*, i32 ()** @indirect_func, align 4
23 %call = call i32 %0() #2
24 ret i32 0
25}
26
27; Indirect function call where no function actually has this type.
28; Ensures that the type entry is still created in this case.
29define void @call_ptr(i64 (i64)* %arg) {
30 %1 = call i64 %arg(i64 1)
31 ret void
32}
33
34; CHECK: !WASM
35; CHECK-NEXT: FileHeader:
36; CHECK-NEXT: Version: 0x00000001
37; CHECK-NEXT: Sections:
38; CHECK-NEXT: - Type: TYPE
39; CHECK-NEXT: Signatures:
40; CHECK-NEXT: - Index: 0
41; CHECK-NEXT: ReturnType: I32
42; CHECK-NEXT: ParamTypes:
43; CHECK-NEXT: - Index: 1
44; CHECK-NEXT: ReturnType: NORESULT
45; CHECK-NEXT: ParamTypes:
46; CHECK-NEXT: - Index: 2
47; CHECK-NEXT: ReturnType: NORESULT
48; CHECK-NEXT: ParamTypes:
49; CHECK-NEXT: - I32
50; CHECK-NEXT: - Index: 3
51; CHECK-NEXT: ReturnType: I64
52; CHECK-NEXT: ParamTypes:
53; CHECK-NEXT: - I64
54; CHECK-NEXT: - Type: FUNCTION
55; CHECK-NEXT: FunctionTypes: [ 0, 1, 0, 0, 2 ]
56; CHECK-NEXT: - Type: TABLE
57; CHECK-NEXT: Tables:
58; CHECK-NEXT: - ElemType: ANYFUNC
59; CHECK-NEXT: Limits:
60; CHECK-NEXT: Flags: [ HAS_MAX ]
61; CHECK-NEXT: Initial: 0x00000003
62; CHECK-NEXT: Maximum: 0x00000003
63; CHECK-NEXT: - Type: MEMORY
64; CHECK-NEXT: Memories:
65; CHECK-NEXT: - Initial: 0x00000002
66; CHECK-NEXT: - Type: GLOBAL
67; CHECK-NEXT: Globals:
68; CHECK-NEXT: - Type: I32
69; CHECK-NEXT: Mutable: true
70; CHECK-NEXT: InitExpr:
71; CHECK-NEXT: Opcode: I32_CONST
72; CHECK-NEXT: Value: 66576
73; CHECK-NEXT: - Type: EXPORT
74; CHECK-NEXT: Exports:
75; CHECK-NEXT: - Name: memory
76; CHECK-NEXT: Kind: MEMORY
77; CHECK-NEXT: Index: 0
78; CHECK-NEXT: - Name: _start
79; CHECK-NEXT: Kind: FUNCTION
80; CHECK-NEXT: Index: 3
81; CHECK-NEXT: - Name: foo
82; CHECK-NEXT: Kind: FUNCTION
83; CHECK-NEXT: Index: 2
84; CHECK-NEXT: - Name: bar
85; CHECK-NEXT: Kind: FUNCTION
86; CHECK-NEXT: Index: 0
87; CHECK-NEXT: - Name: call_bar_indirect
88; CHECK-NEXT: Kind: FUNCTION
89; CHECK-NEXT: Index: 1
90; CHECK-NEXT: - Name: call_ptr
91; CHECK-NEXT: Kind: FUNCTION
92; CHECK-NEXT: Index: 4
93; CHECK-NEXT: - Type: ELEM
94; CHECK-NEXT: Segments:
95; CHECK-NEXT: - Offset:
96; CHECK-NEXT: Opcode: I32_CONST
97; CHECK-NEXT: Value: 1
98; CHECK-NEXT: Functions: [ 0, 2 ]
99; CHECK-NEXT: - Type: CODE
100; CHECK-NEXT: Functions:
101; CHECK-NEXT: - Locals:
102; CHECK-NEXT: Body: 41010B
103; CHECK-NEXT: - Locals:
104; CHECK-NEXT: Body: 410028028088808000118080808000001A0B
105; CHECK-NEXT: - Locals:
106; CHECK-NEXT: Body: 41020B
107; CHECK-NEXT: - Locals:
108; CHECK-NEXT: Body: 410028028888808000118080808000001A41000B
109; CHECK-NEXT: - Locals:
110; CHECK-NEXT: Body: 42012000118380808000001A0B
111; CHECK-NEXT: - Type: DATA
112; CHECK-NEXT: Segments:
113; CHECK-NEXT: - SectionOffset: 7
114; CHECK-NEXT: MemoryIndex: 0
115; CHECK-NEXT: Offset:
116; CHECK-NEXT: Opcode: I32_CONST
117; CHECK-NEXT: Value: 1024
118; CHECK-NEXT: Content: '010000000200000002000000'
119; CHECK-NEXT: - Type: CUSTOM
120; CHECK-NEXT: Name: linking
121; CHECK-NEXT: DataSize: 12
122; CHECK-NEXT: - Type: CUSTOM
123; CHECK-NEXT: Name: name
124; CHECK-NEXT: FunctionNames:
125; CHECK-NEXT: - Index: 0
126; CHECK-NEXT: Name: bar
127; CHECK-NEXT: - Index: 1
128; CHECK-NEXT: Name: call_bar_indirect
129; CHECK-NEXT: - Index: 2
130; CHECK-NEXT: Name: foo
131; CHECK-NEXT: - Index: 3
132; CHECK-NEXT: Name: _start
deps/lld/test/wasm/conflict.test created+6
...@@ -0,0 +1,6 @@
1# RUN: llc -filetype=obj -mtriple=wasm32-unknown-unknown-wasm %p/Inputs/ret32.ll -o %t.ret32.o
2# RUN: not lld -flavor wasm -o %t.wasm %t.ret32.o %t.ret32.o 2>&1 | FileCheck %s
3
4# CHECK: duplicate symbol: ret32
5# CHECK-NEXT: >>> defined in {{.*}}conflict.test.tmp.ret32.o
6# CHECK-NEXT: >>> defined in {{.*}}conflict.test.tmp.ret32.o
deps/lld/test/wasm/data-layout.ll created+61
...@@ -0,0 +1,61 @@
1; RUN: llc -filetype=obj -mtriple=wasm32-unknown-unknown-wasm %p/Inputs/hello.ll -o %t.hello.o
2; RUN: llc -filetype=obj -mtriple=wasm32-unknown-unknown-wasm %s -o %t.o
3; RUN: lld -flavor wasm --emit-relocs --allow-undefined --no-entry -o %t.wasm %t.o %t.hello.o
4; RUN: obj2yaml %t.wasm | FileCheck %s
5
6@foo = hidden global i32 1, align 4
7@aligned_bar = hidden global i32 3, align 16
8
9@hello_str = external global i8*
10@external_ref = global i8** @hello_str, align 8
11
12; CHECK: - Type: GLOBAL
13; CHECK-NEXT: Globals:
14; CHECK-NEXT: - Type: I32
15; CHECK-NEXT: Mutable: true
16; CHECK-NEXT: InitExpr:
17; CHECK-NEXT: Opcode: I32_CONST
18; CHECK-NEXT: Value: 66608
19; CHECK-NEXT: - Type: I32
20; CHECK-NEXT: Mutable: false
21; CHECK-NEXT: InitExpr:
22; CHECK-NEXT: Opcode: I32_CONST
23; CHECK-NEXT: Value: 1024
24; CHECK-NEXT: - Type: I32
25; CHECK-NEXT: Mutable: false
26; CHECK-NEXT: InitExpr:
27; CHECK-NEXT: Opcode: I32_CONST
28; CHECK-NEXT: Value: 1040
29; CHECK-NEXT: - Type: I32
30; CHECK-NEXT: Mutable: false
31; CHECK-NEXT: InitExpr:
32; CHECK-NEXT: Opcode: I32_CONST
33; CHECK-NEXT: Value: 1048
34; CHECK-NEXT: - Type: I32
35; CHECK-NEXT: Mutable: false
36; CHECK-NEXT: InitExpr:
37; CHECK-NEXT: Opcode: I32_CONST
38; CHECK-NEXT: Value: 1052
39
40; CHECK: - Type: DATA
41; CHECK-NEXT: Relocations:
42; CHECK-NEXT: - Type: R_WEBASSEMBLY_MEMORY_ADDR_I32
43; CHECK-NEXT: Index: 4
44; CHECK-NEXT: Offset: 0x0000001F
45; CHECK-NEXT: Segments:
46; CHECK-NEXT: - SectionOffset: 7
47; CHECK-NEXT: MemoryIndex: 0
48; CHECK-NEXT: Offset:
49; CHECK-NEXT: Opcode: I32_CONST
50; CHECK-NEXT: Value: 1024
51; CHECK-NEXT: Content: 0100000000000000000000000000000003000000000000001C040000
52; CHECK-NEXT: - SectionOffset: 41
53; CHECK-NEXT: MemoryIndex: 0
54; CHECK-NEXT: Offset:
55; CHECK-NEXT: Opcode: I32_CONST
56; CHECK-NEXT: Value: 1052
57; CHECK-NEXT: Content: 68656C6C6F0A00
58
59; CHECK: - Type: CUSTOM
60; CHECK-NEXT: Name: linking
61; CHECK-NEXT: DataSize: 35
deps/lld/test/wasm/entry.ll created+19
...@@ -0,0 +1,19 @@
1; RUN: llc -filetype=obj -mtriple=wasm32-unknown-unknown-wasm %s -o %t.o
2; RUN: lld -flavor wasm -e entry -o %t.wasm %t.o
3; RUN: obj2yaml %t.wasm | FileCheck %s
4; RUN: lld -flavor wasm --entry=entry -o %t.wasm %t.o
5; RUN: obj2yaml %t.wasm | FileCheck %s
6
7define void @entry() local_unnamed_addr #0 {
8entry:
9 ret void
10}
11
12; CHECK: - Type: EXPORT
13; CHECK: Exports:
14; CHECK: - Name: memory
15; CHECK: Kind: MEMORY
16; CHECK: Index: 0
17; CHECK: - Name: entry
18; CHECK: Kind: FUNCTION
19; CHECK: Index: 0
deps/lld/test/wasm/function-imports-first.ll created+42
...@@ -0,0 +1,42 @@
1; RUN: llc -filetype=obj -mtriple=wasm32-unknown-unknown-wasm %p/Inputs/ret32.ll -o %t.ret32.o
2; RUN: llc -filetype=obj -mtriple=wasm32-unknown-unknown-wasm %s -o %t.o
3; RUN: lld -flavor wasm -o %t.wasm %t.o %t.ret32.o
4; RUN: obj2yaml %t.wasm | FileCheck %s
5
6; Function Attrs: nounwind
7define hidden void @_start() local_unnamed_addr #0 {
8entry:
9 %call = tail call i32 @ret32(float 0.000000e+00) #2
10 ret void
11}
12
13declare i32 @ret32(float) local_unnamed_addr #1
14
15; CHECK: - Type: TYPE
16; CHECK: Signatures:
17; CHECK-NEXT: - Index: 0
18; CHECK-NEXT: ReturnType: NORESULT
19; CHECK-NEXT: ParamTypes:
20; CHECK-NEXT: - Index: 1
21; CHECK-NEXT: ReturnType: I32
22; CHECK-NEXT: ParamTypes:
23; CHECK-NEXT: - F32
24; CHECK: - Type: FUNCTION
25; CHECK-NEXT: FunctionTypes: [ 0, 1 ]
26; CHECK: - Type: CODE
27; CHECK-NEXT: Functions:
28; CHECK-NEXT: - Locals:
29; CHECK-NEXT: Body: 43000000001081808080001A0B
30; CHECK-NEXT: - Locals:
31; CHECK-NEXT: Body: 41000B
32; CHECK-NEXT: - Type: CUSTOM
33; CHECK-NEXT: Name: linking
34; CHECK-NEXT: DataSize: 0
35; CHECK-NEXT: - Type: CUSTOM
36; CHECK-NEXT: Name: name
37; CHECK-NEXT: FunctionNames:
38; CHECK-NEXT: - Index: 0
39; CHECK-NEXT: Name: _start
40; CHECK-NEXT: - Index: 1
41; CHECK-NEXT: Name: ret32
42; CHECK-NEXT: ...
deps/lld/test/wasm/function-imports.ll created+37
...@@ -0,0 +1,37 @@
1; RUN: llc -filetype=obj -mtriple=wasm32-unknown-unknown-wasm %p/Inputs/ret32.ll -o %t.ret32.o
2; RUN: llc -filetype=obj -mtriple=wasm32-unknown-unknown-wasm %s -o %t.o
3; RUN: lld -flavor wasm -o %t.wasm %t.ret32.o %t.o
4; RUN: obj2yaml %t.wasm | FileCheck %s
5
6; Function Attrs: nounwind
7define hidden void @_start() local_unnamed_addr #0 {
8entry:
9 %call = tail call i32 @ret32(float 0.000000e+00) #2
10 ret void
11}
12
13declare i32 @ret32(float) local_unnamed_addr #1
14
15; CHECK: Sections:
16; CHECK: - Type: TYPE
17; CHECK-NEXT: Signatures:
18; CHECK-NEXT: - Index: 0
19; CHECK-NEXT: ReturnType: I32
20; CHECK-NEXT: ParamTypes:
21; CHECK-NEXT: - F32
22; CHECK-NEXT: - Index: 1
23; CHECK-NEXT: ReturnType: NORESULT
24; CHECK-NEXT: ParamTypes:
25; CHECK-NEXT: - Type: FUNCTION
26; CHECK-NEXT: FunctionTypes: [ 0, 1 ]
27; CHECK: - Type: CODE
28; CHECK-NEXT: Functions:
29; CHECK: - Locals:
30; CHECK: - Locals:
31; CHECK: Name: name
32; CHECK-NEXT: FunctionNames:
33; CHECK-NEXT: - Index: 0
34; CHECK-NEXT: Name: ret32
35; CHECK-NEXT: - Index: 1
36; CHECK-NEXT: Name: _start
37; CHECK-NEXT: ...
deps/lld/test/wasm/function-index.test created+18
...@@ -0,0 +1,18 @@
1# RUN: llc -filetype=obj -mtriple=wasm32-unknown-unknown-wasm %p/Inputs/ret32.ll -o %t.ret32.o
2# RUN: llc -filetype=obj -mtriple=wasm32-unknown-unknown-wasm %p/Inputs/ret64.ll -o %t.ret64.o
3# RUN: lld -flavor wasm -r -o %t.wasm %t.ret32.o %t.ret64.o
4# RUN: obj2yaml %t.wasm | FileCheck %s
5
6CHECK: Sections:
7CHECK: - Type: TYPE
8CHECK: Signatures:
9CHECK: - Index: 0
10CHECK: ReturnType: I32
11CHECK: ParamTypes:
12CHECK: - F32
13CHECK: - Index: 1
14CHECK: ReturnType: I64
15CHECK: ParamTypes:
16CHECK: - F64
17CHECK: - Type: FUNCTION
18CHECK: FunctionTypes: [ 0, 1 ]
deps/lld/test/wasm/import-memory.test created+13
...@@ -0,0 +1,13 @@
1# RUN: llc -filetype=obj -mtriple=wasm32-unknown-unknown-wasm %p/Inputs/ret32.ll -o %t.ret32.o
2# RUN: lld -flavor wasm -entry ret32 --import-memory -o %t.wasm %t.ret32.o
3# RUN: obj2yaml %t.wasm | FileCheck %s
4
5# Verify the --import-memory flag creates a memory import
6
7# CHECK: - Type: IMPORT
8# CHECK-NEXT: Imports:
9# CHECK-NEXT: - Module: env
10# CHECK-NEXT: Field: memory
11# CHECK-NEXT: Kind: MEMORY
12# CHECK-NEXT: Memory:
13# CHECK-NEXT: Initial: 0x00000002
deps/lld/test/wasm/init-fini.ll created+99
...@@ -0,0 +1,99 @@
1; RUN: llc -mtriple=wasm32-unknown-unknown-wasm -filetype=obj -o %t.o %s
2; RUN: llc -mtriple=wasm32-unknown-unknown-wasm -filetype=obj %S/Inputs/global-ctor-dtor.ll -o %t.global-ctor-dtor.o
3
4define hidden void @func1() {
5entry:
6 ret void
7}
8
9define hidden void @func2() {
10entry:
11 ret void
12}
13
14define void @__cxa_atexit() {
15 ret void
16}
17
18define hidden void @_start() {
19entry:
20 ret void
21}
22
23@llvm.global_ctors = appending global [1 x { i32, void ()*, i8* }] [{ i32, void ()*, i8* } { i32 65535, void ()* @func1, i8* null }]
24
25@llvm.global_dtors = appending global [1 x { i32, void ()*, i8* }] [{ i32, void ()*, i8* } { i32 65535, void ()* @func2, i8* null }]
26
27; RUN: lld -flavor wasm %t.o %t.global-ctor-dtor.o -o %t.wasm
28; RUN: obj2yaml %t.wasm | FileCheck %s
29
30; CHECK: Name: linking
31; CHECK-NEXT: DataSize: 0
32; CHECK-NEXT: - Type: CUSTOM
33; CHECK-NEXT: Name: name
34; CHECK-NEXT: FunctionNames:
35; CHECK-NEXT: - Index: 0
36; CHECK-NEXT: Name: func1
37; CHECK-NEXT: - Index: 1
38; CHECK-NEXT: Name: func2
39; CHECK-NEXT: - Index: 2
40; CHECK-NEXT: Name: __cxa_atexit
41; CHECK-NEXT: - Index: 3
42; CHECK-NEXT: Name: _start
43; CHECK-NEXT: - Index: 4
44; CHECK-NEXT: Name: .Lcall_dtors
45; CHECK-NEXT: - Index: 5
46; CHECK-NEXT: Name: .Lregister_call_dtors
47; CHECK-NEXT: - Index: 6
48; CHECK-NEXT: Name: .Lbitcast
49; CHECK-NEXT: - Index: 7
50; CHECK-NEXT: Name: myctor
51; CHECK-NEXT: - Index: 8
52; CHECK-NEXT: Name: mydtor
53; CHECK-NEXT: - Index: 9
54; CHECK-NEXT: Name: .Lcall_dtors
55; CHECK-NEXT: - Index: 10
56; CHECK-NEXT: Name: .Lregister_call_dtors
57; CHECK-NEXT: ...
58
59
60; RUN: lld -flavor wasm -r %t.o %t.global-ctor-dtor.o -o %t.reloc.wasm
61; RUN: obj2yaml %t.reloc.wasm | FileCheck -check-prefix=RELOC %s
62
63; RELOC: Name: linking
64; RELOC-NEXT: DataSize: 0
65; RELOC-NEXT: InitFunctions:
66; RELOC-NEXT: - Priority: 65535
67; RELOC-NEXT: FunctionIndex: 0
68; RELOC-NEXT: - Priority: 65535
69; RELOC-NEXT: FunctionIndex: 5
70; RELOC-NEXT: - Priority: 65535
71; RELOC-NEXT: FunctionIndex: 7
72; RELOC-NEXT: - Priority: 65535
73; RELOC-NEXT: FunctionIndex: 10
74; RELOC-NEXT: - Type: CUSTOM
75; RELOC-NEXT: Name: name
76; RELOC-NEXT: FunctionNames:
77; RELOC-NEXT: - Index: 0
78; RELOC-NEXT: Name: func1
79; RELOC-NEXT: - Index: 1
80; RELOC-NEXT: Name: func2
81; RELOC-NEXT: - Index: 2
82; RELOC-NEXT: Name: __cxa_atexit
83; RELOC-NEXT: - Index: 3
84; RELOC-NEXT: Name: _start
85; RELOC-NEXT: - Index: 4
86; RELOC-NEXT: Name: .Lcall_dtors
87; RELOC-NEXT: - Index: 5
88; RELOC-NEXT: Name: .Lregister_call_dtors
89; RELOC-NEXT: - Index: 6
90; RELOC-NEXT: Name: .Lbitcast
91; RELOC-NEXT: - Index: 7
92; RELOC-NEXT: Name: myctor
93; RELOC-NEXT: - Index: 8
94; RELOC-NEXT: Name: mydtor
95; RELOC-NEXT: - Index: 9
96; RELOC-NEXT: Name: .Lcall_dtors
97; RELOC-NEXT: - Index: 10
98; RELOC-NEXT: Name: .Lregister_call_dtors
99; RELOC-NEXT: ...
deps/lld/test/wasm/invalid-stack-size.test created+9
...@@ -0,0 +1,9 @@
1; RUN: llc -mtriple=wasm32-unknown-unknown-wasm -filetype=obj %s -o %t.o
2; RUN: not lld -flavor wasm -o %t.wasm -z stack-size=1 %t.o 2>&1 | FileCheck %s
3
4define i32 @_start() local_unnamed_addr #1 {
5entry:
6 ret i32 0
7}
8
9; CHECK: error: stack size must be 16-byte aligned
deps/lld/test/wasm/lit.local.cfg created+4
...@@ -0,0 +1,4 @@
1if 'wasm' not in config.available_features:
2 config.unsupported = True
3
4config.suffixes = ['.test', '.yaml', '.ll']
deps/lld/test/wasm/load-undefined.ll created+38
...@@ -0,0 +1,38 @@
1; Verify that the -u / --undefined option is able to pull in symbols from
2; an archive, and doesn't error when uses to pull in a symbol already loaded.
3;
4; RUN: llc -filetype=obj -mtriple=wasm32-unknown-unknown-wasm %S/Inputs/ret64.ll -o %t.o
5; RUN: llc -filetype=obj -mtriple=wasm32-unknown-unknown-wasm %S/Inputs/ret32.ll -o %t2.o
6; RUN: llc -filetype=obj -mtriple=wasm32-unknown-unknown-wasm %s -o %t3.o
7; RUN: llvm-ar rcs %t2.a %t2.o
8; RUN: lld -flavor wasm %t3.o %t2.a %t.o -o %t.wasm -u ret32 --undefined ret64
9; RUN: obj2yaml %t.wasm | FileCheck %s
10
11define i32 @_start() local_unnamed_addr {
12entry:
13 ret i32 1
14}
15
16; CHECK: - Type: EXPORT
17; CHECK-NEXT: Exports:
18; CHECK-NEXT: - Name: memory
19; CHECK-NEXT: Kind: MEMORY
20; CHECK-NEXT: Index: 0
21; CHECK-NEXT: - Name: _start
22; CHECK-NEXT: Kind: FUNCTION
23; CHECK-NEXT: Index: 0
24; CHECK-NEXT: - Name: ret32
25; CHECK-NEXT: Kind: FUNCTION
26; CHECK-NEXT: Index: 1
27; CHECK-NEXT: - Name: ret64
28; CHECK-NEXT: Kind: FUNCTION
29; CHECK-NEXT: Index: 2
30; CHECK-NEXT: - Type:
31
32
33; Verify that referencing a symbol that doesn't exist won't work
34; RUN: not lld -flavor wasm %t3.o -o %t.wasm -u symboldoesnotexist 2>&1 | FileCheck -check-prefix=CHECK-UNDEFINED1 %s
35; CHECK-UNDEFINED1: error: undefined symbol: symboldoesnotexist
36
37; RUN: not lld -flavor wasm %t3.o -o %t.wasm --undefined symboldoesnotexist --allow-undefined 2>&1 | FileCheck -check-prefix=CHECK-UNDEFINED2 %s
38; CHECK-UNDEFINED2: function forced with --undefined not found: symboldoesnotexist
deps/lld/test/wasm/local-symbols.ll created+78
...@@ -0,0 +1,78 @@
1; RUN: llc -filetype=obj -mtriple=wasm32-unknown-unknown-wasm %s -o %t.o
2; RUN: lld -flavor wasm -o %t.wasm %t.o
3; RUN: obj2yaml %t.wasm | FileCheck %s
4
5@foo = default global i32 1, align 4
6@bar = internal default global i32 3, align 4
7
8define internal i32 @baz() local_unnamed_addr {
9entry:
10 ret i32 2
11}
12
13define i32 @_start() local_unnamed_addr {
14entry:
15 ret i32 1
16}
17
18; CHECK: --- !WASM
19; CHECK-NEXT: FileHeader:
20; CHECK-NEXT: Version: 0x00000001
21; CHECK-NEXT: Sections:
22; CHECK-NEXT: - Type: TYPE
23; CHECK-NEXT: Signatures:
24; CHECK-NEXT: - Index: 0
25; CHECK-NEXT: ReturnType: I32
26; CHECK-NEXT: ParamTypes:
27; CHECK-NEXT: - Type: FUNCTION
28; CHECK-NEXT: FunctionTypes: [ 0, 0 ]
29; CHECK-NEXT: - Type: TABLE
30; CHECK-NEXT: Tables:
31; CHECK-NEXT: - ElemType: ANYFUNC
32; CHECK-NEXT: Limits:
33; CHECK-NEXT: Flags: [ HAS_MAX ]
34; CHECK-NEXT: Initial: 0x00000001
35; CHECK-NEXT: Maximum: 0x00000001
36; CHECK-NEXT: - Type: MEMORY
37; CHECK-NEXT: Memories:
38; CHECK-NEXT: - Initial: 0x00000002
39; CHECK-NEXT: - Type: GLOBAL
40; CHECK-NEXT: Globals:
41; CHECK-NEXT: - Type: I32
42; CHECK-NEXT: Mutable: true
43; CHECK-NEXT: InitExpr:
44; CHECK-NEXT: Opcode: I32_CONST
45; CHECK-NEXT: Value: 66576
46; CHECK-NEXT: - Type: EXPORT
47; CHECK-NEXT: Exports:
48; CHECK-NEXT: - Name: memory
49; CHECK-NEXT: Kind: MEMORY
50; CHECK-NEXT: Index: 0
51; CHECK-NEXT: - Name: _start
52; CHECK-NEXT: Kind: FUNCTION
53; CHECK-NEXT: Index: 1
54; CHECK-NEXT: - Type: CODE
55; CHECK-NEXT: Functions:
56; CHECK-NEXT: - Locals:
57; CHECK-NEXT: Body: 41020B
58; CHECK-NEXT: - Locals:
59; CHECK-NEXT: Body: 41010B
60; CHECK-NEXT: - Type: DATA
61; CHECK-NEXT: Segments:
62; CHECK-NEXT: - SectionOffset: 7
63; CHECK-NEXT: MemoryIndex: 0
64; CHECK-NEXT: Offset:
65; CHECK-NEXT: Opcode: I32_CONST
66; CHECK-NEXT: Value: 1024
67; CHECK-NEXT: Content: '0100000003000000'
68; CHECK-NEXT: - Type: CUSTOM
69; CHECK-NEXT: Name: linking
70; CHECK-NEXT: DataSize: 8
71; CHECK-NEXT: - Type: CUSTOM
72; CHECK-NEXT: Name: name
73; CHECK-NEXT: FunctionNames:
74; CHECK-NEXT: - Index: 0
75; CHECK-NEXT: Name: baz
76; CHECK-NEXT: - Index: 1
77; CHECK-NEXT: Name: _start
78; CHECK-NEXT: ...
deps/lld/test/wasm/many-functions.ll created+695
...@@ -0,0 +1,695 @@
1; RUN: llc -filetype=obj -mtriple=wasm32-unknown-unknown-wasm %p/Inputs/many-funcs.ll -o %t.many.o
2; RUN: llc -filetype=obj -mtriple=wasm32-unknown-unknown-wasm %s -o %t.o
3; RUN: lld -flavor wasm -r -o %t.wasm %t.many.o %t.o
4; RUN: obj2yaml %t.wasm | FileCheck %s
5
6; Test that relocations within the CODE section correctly handle
7; linking object with different header sizes. many-funcs.ll has
8; 128 function and so the final output requires a 2-byte LEB in
9; the CODE section header to store the function count.
10
11define i32 @func() {
12entry:
13 %call = tail call i32 @func()
14 ret i32 %call
15}
16
17; CHECK: - Type: CODE
18; CHECK-NEXT: Relocations:
19; CHECK-NEXT: - Type: R_WEBASSEMBLY_MEMORY_ADDR_LEB
20; CHECK-NEXT: Index: 0
21; CHECK-NEXT: Offset: 0x00000008
22; CHECK-NEXT: - Type: R_WEBASSEMBLY_MEMORY_ADDR_LEB
23; CHECK-NEXT: Index: 0
24; CHECK-NEXT: Offset: 0x00000014
25; CHECK-NEXT: - Type: R_WEBASSEMBLY_MEMORY_ADDR_LEB
26; CHECK-NEXT: Index: 0
27; CHECK-NEXT: Offset: 0x00000020
28; CHECK-NEXT: - Type: R_WEBASSEMBLY_MEMORY_ADDR_LEB
29; CHECK-NEXT: Index: 0
30; CHECK-NEXT: Offset: 0x0000002C
31; CHECK-NEXT: - Type: R_WEBASSEMBLY_MEMORY_ADDR_LEB
32; CHECK-NEXT: Index: 0
33; CHECK-NEXT: Offset: 0x00000038
34; CHECK-NEXT: - Type: R_WEBASSEMBLY_MEMORY_ADDR_LEB
35; CHECK-NEXT: Index: 0
36; CHECK-NEXT: Offset: 0x00000044
37; CHECK-NEXT: - Type: R_WEBASSEMBLY_MEMORY_ADDR_LEB
38; CHECK-NEXT: Index: 0
39; CHECK-NEXT: Offset: 0x00000050
40; CHECK-NEXT: - Type: R_WEBASSEMBLY_MEMORY_ADDR_LEB
41; CHECK-NEXT: Index: 0
42; CHECK-NEXT: Offset: 0x0000005C
43; CHECK-NEXT: - Type: R_WEBASSEMBLY_MEMORY_ADDR_LEB
44; CHECK-NEXT: Index: 0
45; CHECK-NEXT: Offset: 0x00000068
46; CHECK-NEXT: - Type: R_WEBASSEMBLY_MEMORY_ADDR_LEB
47; CHECK-NEXT: Index: 0
48; CHECK-NEXT: Offset: 0x00000074
49; CHECK-NEXT: - Type: R_WEBASSEMBLY_MEMORY_ADDR_LEB
50; CHECK-NEXT: Index: 0
51; CHECK-NEXT: Offset: 0x00000080
52; CHECK-NEXT: - Type: R_WEBASSEMBLY_MEMORY_ADDR_LEB
53; CHECK-NEXT: Index: 0
54; CHECK-NEXT: Offset: 0x0000008C
55; CHECK-NEXT: - Type: R_WEBASSEMBLY_MEMORY_ADDR_LEB
56; CHECK-NEXT: Index: 0
57; CHECK-NEXT: Offset: 0x00000098
58; CHECK-NEXT: - Type: R_WEBASSEMBLY_MEMORY_ADDR_LEB
59; CHECK-NEXT: Index: 0
60; CHECK-NEXT: Offset: 0x000000A4
61; CHECK-NEXT: - Type: R_WEBASSEMBLY_MEMORY_ADDR_LEB
62; CHECK-NEXT: Index: 0
63; CHECK-NEXT: Offset: 0x000000B0
64; CHECK-NEXT: - Type: R_WEBASSEMBLY_MEMORY_ADDR_LEB
65; CHECK-NEXT: Index: 0
66; CHECK-NEXT: Offset: 0x000000BC
67; CHECK-NEXT: - Type: R_WEBASSEMBLY_MEMORY_ADDR_LEB
68; CHECK-NEXT: Index: 0
69; CHECK-NEXT: Offset: 0x000000C8
70; CHECK-NEXT: - Type: R_WEBASSEMBLY_MEMORY_ADDR_LEB
71; CHECK-NEXT: Index: 0
72; CHECK-NEXT: Offset: 0x000000D4
73; CHECK-NEXT: - Type: R_WEBASSEMBLY_MEMORY_ADDR_LEB
74; CHECK-NEXT: Index: 0
75; CHECK-NEXT: Offset: 0x000000E0
76; CHECK-NEXT: - Type: R_WEBASSEMBLY_MEMORY_ADDR_LEB
77; CHECK-NEXT: Index: 0
78; CHECK-NEXT: Offset: 0x000000EC
79; CHECK-NEXT: - Type: R_WEBASSEMBLY_MEMORY_ADDR_LEB
80; CHECK-NEXT: Index: 0
81; CHECK-NEXT: Offset: 0x000000F8
82; CHECK-NEXT: - Type: R_WEBASSEMBLY_MEMORY_ADDR_LEB
83; CHECK-NEXT: Index: 0
84; CHECK-NEXT: Offset: 0x00000104
85; CHECK-NEXT: - Type: R_WEBASSEMBLY_MEMORY_ADDR_LEB
86; CHECK-NEXT: Index: 0
87; CHECK-NEXT: Offset: 0x00000110
88; CHECK-NEXT: - Type: R_WEBASSEMBLY_MEMORY_ADDR_LEB
89; CHECK-NEXT: Index: 0
90; CHECK-NEXT: Offset: 0x0000011C
91; CHECK-NEXT: - Type: R_WEBASSEMBLY_MEMORY_ADDR_LEB
92; CHECK-NEXT: Index: 0
93; CHECK-NEXT: Offset: 0x00000128
94; CHECK-NEXT: - Type: R_WEBASSEMBLY_MEMORY_ADDR_LEB
95; CHECK-NEXT: Index: 0
96; CHECK-NEXT: Offset: 0x00000134
97; CHECK-NEXT: - Type: R_WEBASSEMBLY_MEMORY_ADDR_LEB
98; CHECK-NEXT: Index: 0
99; CHECK-NEXT: Offset: 0x00000140
100; CHECK-NEXT: - Type: R_WEBASSEMBLY_MEMORY_ADDR_LEB
101; CHECK-NEXT: Index: 0
102; CHECK-NEXT: Offset: 0x0000014C
103; CHECK-NEXT: - Type: R_WEBASSEMBLY_MEMORY_ADDR_LEB
104; CHECK-NEXT: Index: 0
105; CHECK-NEXT: Offset: 0x00000158
106; CHECK-NEXT: - Type: R_WEBASSEMBLY_MEMORY_ADDR_LEB
107; CHECK-NEXT: Index: 0
108; CHECK-NEXT: Offset: 0x00000164
109; CHECK-NEXT: - Type: R_WEBASSEMBLY_MEMORY_ADDR_LEB
110; CHECK-NEXT: Index: 0
111; CHECK-NEXT: Offset: 0x00000170
112; CHECK-NEXT: - Type: R_WEBASSEMBLY_MEMORY_ADDR_LEB
113; CHECK-NEXT: Index: 0
114; CHECK-NEXT: Offset: 0x0000017C
115; CHECK-NEXT: - Type: R_WEBASSEMBLY_MEMORY_ADDR_LEB
116; CHECK-NEXT: Index: 0
117; CHECK-NEXT: Offset: 0x00000188
118; CHECK-NEXT: - Type: R_WEBASSEMBLY_MEMORY_ADDR_LEB
119; CHECK-NEXT: Index: 0
120; CHECK-NEXT: Offset: 0x00000194
121; CHECK-NEXT: - Type: R_WEBASSEMBLY_MEMORY_ADDR_LEB
122; CHECK-NEXT: Index: 0
123; CHECK-NEXT: Offset: 0x000001A0
124; CHECK-NEXT: - Type: R_WEBASSEMBLY_MEMORY_ADDR_LEB
125; CHECK-NEXT: Index: 0
126; CHECK-NEXT: Offset: 0x000001AC
127; CHECK-NEXT: - Type: R_WEBASSEMBLY_MEMORY_ADDR_LEB
128; CHECK-NEXT: Index: 0
129; CHECK-NEXT: Offset: 0x000001B8
130; CHECK-NEXT: - Type: R_WEBASSEMBLY_MEMORY_ADDR_LEB
131; CHECK-NEXT: Index: 0
132; CHECK-NEXT: Offset: 0x000001C4
133; CHECK-NEXT: - Type: R_WEBASSEMBLY_MEMORY_ADDR_LEB
134; CHECK-NEXT: Index: 0
135; CHECK-NEXT: Offset: 0x000001D0
136; CHECK-NEXT: - Type: R_WEBASSEMBLY_MEMORY_ADDR_LEB
137; CHECK-NEXT: Index: 0
138; CHECK-NEXT: Offset: 0x000001DC
139; CHECK-NEXT: - Type: R_WEBASSEMBLY_MEMORY_ADDR_LEB
140; CHECK-NEXT: Index: 0
141; CHECK-NEXT: Offset: 0x000001E8
142; CHECK-NEXT: - Type: R_WEBASSEMBLY_MEMORY_ADDR_LEB
143; CHECK-NEXT: Index: 0
144; CHECK-NEXT: Offset: 0x000001F4
145; CHECK-NEXT: - Type: R_WEBASSEMBLY_MEMORY_ADDR_LEB
146; CHECK-NEXT: Index: 0
147; CHECK-NEXT: Offset: 0x00000200
148; CHECK-NEXT: - Type: R_WEBASSEMBLY_MEMORY_ADDR_LEB
149; CHECK-NEXT: Index: 0
150; CHECK-NEXT: Offset: 0x0000020C
151; CHECK-NEXT: - Type: R_WEBASSEMBLY_MEMORY_ADDR_LEB
152; CHECK-NEXT: Index: 0
153; CHECK-NEXT: Offset: 0x00000218
154; CHECK-NEXT: - Type: R_WEBASSEMBLY_MEMORY_ADDR_LEB
155; CHECK-NEXT: Index: 0
156; CHECK-NEXT: Offset: 0x00000224
157; CHECK-NEXT: - Type: R_WEBASSEMBLY_MEMORY_ADDR_LEB
158; CHECK-NEXT: Index: 0
159; CHECK-NEXT: Offset: 0x00000230
160; CHECK-NEXT: - Type: R_WEBASSEMBLY_MEMORY_ADDR_LEB
161; CHECK-NEXT: Index: 0
162; CHECK-NEXT: Offset: 0x0000023C
163; CHECK-NEXT: - Type: R_WEBASSEMBLY_MEMORY_ADDR_LEB
164; CHECK-NEXT: Index: 0
165; CHECK-NEXT: Offset: 0x00000248
166; CHECK-NEXT: - Type: R_WEBASSEMBLY_MEMORY_ADDR_LEB
167; CHECK-NEXT: Index: 0
168; CHECK-NEXT: Offset: 0x00000254
169; CHECK-NEXT: - Type: R_WEBASSEMBLY_MEMORY_ADDR_LEB
170; CHECK-NEXT: Index: 0
171; CHECK-NEXT: Offset: 0x00000260
172; CHECK-NEXT: - Type: R_WEBASSEMBLY_MEMORY_ADDR_LEB
173; CHECK-NEXT: Index: 0
174; CHECK-NEXT: Offset: 0x0000026C
175; CHECK-NEXT: - Type: R_WEBASSEMBLY_MEMORY_ADDR_LEB
176; CHECK-NEXT: Index: 0
177; CHECK-NEXT: Offset: 0x00000278
178; CHECK-NEXT: - Type: R_WEBASSEMBLY_MEMORY_ADDR_LEB
179; CHECK-NEXT: Index: 0
180; CHECK-NEXT: Offset: 0x00000284
181; CHECK-NEXT: - Type: R_WEBASSEMBLY_MEMORY_ADDR_LEB
182; CHECK-NEXT: Index: 0
183; CHECK-NEXT: Offset: 0x00000290
184; CHECK-NEXT: - Type: R_WEBASSEMBLY_MEMORY_ADDR_LEB
185; CHECK-NEXT: Index: 0
186; CHECK-NEXT: Offset: 0x0000029C
187; CHECK-NEXT: - Type: R_WEBASSEMBLY_MEMORY_ADDR_LEB
188; CHECK-NEXT: Index: 0
189; CHECK-NEXT: Offset: 0x000002A8
190; CHECK-NEXT: - Type: R_WEBASSEMBLY_MEMORY_ADDR_LEB
191; CHECK-NEXT: Index: 0
192; CHECK-NEXT: Offset: 0x000002B4
193; CHECK-NEXT: - Type: R_WEBASSEMBLY_MEMORY_ADDR_LEB
194; CHECK-NEXT: Index: 0
195; CHECK-NEXT: Offset: 0x000002C0
196; CHECK-NEXT: - Type: R_WEBASSEMBLY_MEMORY_ADDR_LEB
197; CHECK-NEXT: Index: 0
198; CHECK-NEXT: Offset: 0x000002CC
199; CHECK-NEXT: - Type: R_WEBASSEMBLY_MEMORY_ADDR_LEB
200; CHECK-NEXT: Index: 0
201; CHECK-NEXT: Offset: 0x000002D8
202; CHECK-NEXT: - Type: R_WEBASSEMBLY_MEMORY_ADDR_LEB
203; CHECK-NEXT: Index: 0
204; CHECK-NEXT: Offset: 0x000002E4
205; CHECK-NEXT: - Type: R_WEBASSEMBLY_MEMORY_ADDR_LEB
206; CHECK-NEXT: Index: 0
207; CHECK-NEXT: Offset: 0x000002F0
208; CHECK-NEXT: - Type: R_WEBASSEMBLY_MEMORY_ADDR_LEB
209; CHECK-NEXT: Index: 0
210; CHECK-NEXT: Offset: 0x000002FC
211; CHECK-NEXT: - Type: R_WEBASSEMBLY_MEMORY_ADDR_LEB
212; CHECK-NEXT: Index: 0
213; CHECK-NEXT: Offset: 0x00000308
214; CHECK-NEXT: - Type: R_WEBASSEMBLY_MEMORY_ADDR_LEB
215; CHECK-NEXT: Index: 0
216; CHECK-NEXT: Offset: 0x00000314
217; CHECK-NEXT: - Type: R_WEBASSEMBLY_MEMORY_ADDR_LEB
218; CHECK-NEXT: Index: 0
219; CHECK-NEXT: Offset: 0x00000320
220; CHECK-NEXT: - Type: R_WEBASSEMBLY_MEMORY_ADDR_LEB
221; CHECK-NEXT: Index: 0
222; CHECK-NEXT: Offset: 0x0000032C
223; CHECK-NEXT: - Type: R_WEBASSEMBLY_MEMORY_ADDR_LEB
224; CHECK-NEXT: Index: 0
225; CHECK-NEXT: Offset: 0x00000338
226; CHECK-NEXT: - Type: R_WEBASSEMBLY_MEMORY_ADDR_LEB
227; CHECK-NEXT: Index: 0
228; CHECK-NEXT: Offset: 0x00000344
229; CHECK-NEXT: - Type: R_WEBASSEMBLY_MEMORY_ADDR_LEB
230; CHECK-NEXT: Index: 0
231; CHECK-NEXT: Offset: 0x00000350
232; CHECK-NEXT: - Type: R_WEBASSEMBLY_MEMORY_ADDR_LEB
233; CHECK-NEXT: Index: 0
234; CHECK-NEXT: Offset: 0x0000035C
235; CHECK-NEXT: - Type: R_WEBASSEMBLY_MEMORY_ADDR_LEB
236; CHECK-NEXT: Index: 0
237; CHECK-NEXT: Offset: 0x00000368
238; CHECK-NEXT: - Type: R_WEBASSEMBLY_MEMORY_ADDR_LEB
239; CHECK-NEXT: Index: 0
240; CHECK-NEXT: Offset: 0x00000374
241; CHECK-NEXT: - Type: R_WEBASSEMBLY_MEMORY_ADDR_LEB
242; CHECK-NEXT: Index: 0
243; CHECK-NEXT: Offset: 0x00000380
244; CHECK-NEXT: - Type: R_WEBASSEMBLY_MEMORY_ADDR_LEB
245; CHECK-NEXT: Index: 0
246; CHECK-NEXT: Offset: 0x0000038C
247; CHECK-NEXT: - Type: R_WEBASSEMBLY_MEMORY_ADDR_LEB
248; CHECK-NEXT: Index: 0
249; CHECK-NEXT: Offset: 0x00000398
250; CHECK-NEXT: - Type: R_WEBASSEMBLY_MEMORY_ADDR_LEB
251; CHECK-NEXT: Index: 0
252; CHECK-NEXT: Offset: 0x000003A4
253; CHECK-NEXT: - Type: R_WEBASSEMBLY_MEMORY_ADDR_LEB
254; CHECK-NEXT: Index: 0
255; CHECK-NEXT: Offset: 0x000003B0
256; CHECK-NEXT: - Type: R_WEBASSEMBLY_MEMORY_ADDR_LEB
257; CHECK-NEXT: Index: 0
258; CHECK-NEXT: Offset: 0x000003BC
259; CHECK-NEXT: - Type: R_WEBASSEMBLY_MEMORY_ADDR_LEB
260; CHECK-NEXT: Index: 0
261; CHECK-NEXT: Offset: 0x000003C8
262; CHECK-NEXT: - Type: R_WEBASSEMBLY_MEMORY_ADDR_LEB
263; CHECK-NEXT: Index: 0
264; CHECK-NEXT: Offset: 0x000003D4
265; CHECK-NEXT: - Type: R_WEBASSEMBLY_MEMORY_ADDR_LEB
266; CHECK-NEXT: Index: 0
267; CHECK-NEXT: Offset: 0x000003E0
268; CHECK-NEXT: - Type: R_WEBASSEMBLY_MEMORY_ADDR_LEB
269; CHECK-NEXT: Index: 0
270; CHECK-NEXT: Offset: 0x000003EC
271; CHECK-NEXT: - Type: R_WEBASSEMBLY_MEMORY_ADDR_LEB
272; CHECK-NEXT: Index: 0
273; CHECK-NEXT: Offset: 0x000003F8
274; CHECK-NEXT: - Type: R_WEBASSEMBLY_MEMORY_ADDR_LEB
275; CHECK-NEXT: Index: 0
276; CHECK-NEXT: Offset: 0x00000404
277; CHECK-NEXT: - Type: R_WEBASSEMBLY_MEMORY_ADDR_LEB
278; CHECK-NEXT: Index: 0
279; CHECK-NEXT: Offset: 0x00000410
280; CHECK-NEXT: - Type: R_WEBASSEMBLY_MEMORY_ADDR_LEB
281; CHECK-NEXT: Index: 0
282; CHECK-NEXT: Offset: 0x0000041C
283; CHECK-NEXT: - Type: R_WEBASSEMBLY_MEMORY_ADDR_LEB
284; CHECK-NEXT: Index: 0
285; CHECK-NEXT: Offset: 0x00000428
286; CHECK-NEXT: - Type: R_WEBASSEMBLY_MEMORY_ADDR_LEB
287; CHECK-NEXT: Index: 0
288; CHECK-NEXT: Offset: 0x00000434
289; CHECK-NEXT: - Type: R_WEBASSEMBLY_MEMORY_ADDR_LEB
290; CHECK-NEXT: Index: 0
291; CHECK-NEXT: Offset: 0x00000440
292; CHECK-NEXT: - Type: R_WEBASSEMBLY_MEMORY_ADDR_LEB
293; CHECK-NEXT: Index: 0
294; CHECK-NEXT: Offset: 0x0000044C
295; CHECK-NEXT: - Type: R_WEBASSEMBLY_MEMORY_ADDR_LEB
296; CHECK-NEXT: Index: 0
297; CHECK-NEXT: Offset: 0x00000458
298; CHECK-NEXT: - Type: R_WEBASSEMBLY_MEMORY_ADDR_LEB
299; CHECK-NEXT: Index: 0
300; CHECK-NEXT: Offset: 0x00000464
301; CHECK-NEXT: - Type: R_WEBASSEMBLY_MEMORY_ADDR_LEB
302; CHECK-NEXT: Index: 0
303; CHECK-NEXT: Offset: 0x00000470
304; CHECK-NEXT: - Type: R_WEBASSEMBLY_MEMORY_ADDR_LEB
305; CHECK-NEXT: Index: 0
306; CHECK-NEXT: Offset: 0x0000047C
307; CHECK-NEXT: - Type: R_WEBASSEMBLY_MEMORY_ADDR_LEB
308; CHECK-NEXT: Index: 0
309; CHECK-NEXT: Offset: 0x00000488
310; CHECK-NEXT: - Type: R_WEBASSEMBLY_MEMORY_ADDR_LEB
311; CHECK-NEXT: Index: 0
312; CHECK-NEXT: Offset: 0x00000494
313; CHECK-NEXT: - Type: R_WEBASSEMBLY_MEMORY_ADDR_LEB
314; CHECK-NEXT: Index: 0
315; CHECK-NEXT: Offset: 0x000004A0
316; CHECK-NEXT: - Type: R_WEBASSEMBLY_MEMORY_ADDR_LEB
317; CHECK-NEXT: Index: 0
318; CHECK-NEXT: Offset: 0x000004AC
319; CHECK-NEXT: - Type: R_WEBASSEMBLY_MEMORY_ADDR_LEB
320; CHECK-NEXT: Index: 0
321; CHECK-NEXT: Offset: 0x000004B8
322; CHECK-NEXT: - Type: R_WEBASSEMBLY_MEMORY_ADDR_LEB
323; CHECK-NEXT: Index: 0
324; CHECK-NEXT: Offset: 0x000004C4
325; CHECK-NEXT: - Type: R_WEBASSEMBLY_MEMORY_ADDR_LEB
326; CHECK-NEXT: Index: 0
327; CHECK-NEXT: Offset: 0x000004D0
328; CHECK-NEXT: - Type: R_WEBASSEMBLY_MEMORY_ADDR_LEB
329; CHECK-NEXT: Index: 0
330; CHECK-NEXT: Offset: 0x000004DC
331; CHECK-NEXT: - Type: R_WEBASSEMBLY_MEMORY_ADDR_LEB
332; CHECK-NEXT: Index: 0
333; CHECK-NEXT: Offset: 0x000004E8
334; CHECK-NEXT: - Type: R_WEBASSEMBLY_MEMORY_ADDR_LEB
335; CHECK-NEXT: Index: 0
336; CHECK-NEXT: Offset: 0x000004F4
337; CHECK-NEXT: - Type: R_WEBASSEMBLY_MEMORY_ADDR_LEB
338; CHECK-NEXT: Index: 0
339; CHECK-NEXT: Offset: 0x00000500
340; CHECK-NEXT: - Type: R_WEBASSEMBLY_MEMORY_ADDR_LEB
341; CHECK-NEXT: Index: 0
342; CHECK-NEXT: Offset: 0x0000050C
343; CHECK-NEXT: - Type: R_WEBASSEMBLY_MEMORY_ADDR_LEB
344; CHECK-NEXT: Index: 0
345; CHECK-NEXT: Offset: 0x00000518
346; CHECK-NEXT: - Type: R_WEBASSEMBLY_MEMORY_ADDR_LEB
347; CHECK-NEXT: Index: 0
348; CHECK-NEXT: Offset: 0x00000524
349; CHECK-NEXT: - Type: R_WEBASSEMBLY_MEMORY_ADDR_LEB
350; CHECK-NEXT: Index: 0
351; CHECK-NEXT: Offset: 0x00000530
352; CHECK-NEXT: - Type: R_WEBASSEMBLY_MEMORY_ADDR_LEB
353; CHECK-NEXT: Index: 0
354; CHECK-NEXT: Offset: 0x0000053C
355; CHECK-NEXT: - Type: R_WEBASSEMBLY_MEMORY_ADDR_LEB
356; CHECK-NEXT: Index: 0
357; CHECK-NEXT: Offset: 0x00000548
358; CHECK-NEXT: - Type: R_WEBASSEMBLY_MEMORY_ADDR_LEB
359; CHECK-NEXT: Index: 0
360; CHECK-NEXT: Offset: 0x00000554
361; CHECK-NEXT: - Type: R_WEBASSEMBLY_MEMORY_ADDR_LEB
362; CHECK-NEXT: Index: 0
363; CHECK-NEXT: Offset: 0x00000560
364; CHECK-NEXT: - Type: R_WEBASSEMBLY_MEMORY_ADDR_LEB
365; CHECK-NEXT: Index: 0
366; CHECK-NEXT: Offset: 0x0000056C
367; CHECK-NEXT: - Type: R_WEBASSEMBLY_MEMORY_ADDR_LEB
368; CHECK-NEXT: Index: 0
369; CHECK-NEXT: Offset: 0x00000578
370; CHECK-NEXT: - Type: R_WEBASSEMBLY_MEMORY_ADDR_LEB
371; CHECK-NEXT: Index: 0
372; CHECK-NEXT: Offset: 0x00000584
373; CHECK-NEXT: - Type: R_WEBASSEMBLY_MEMORY_ADDR_LEB
374; CHECK-NEXT: Index: 0
375; CHECK-NEXT: Offset: 0x00000590
376; CHECK-NEXT: - Type: R_WEBASSEMBLY_MEMORY_ADDR_LEB
377; CHECK-NEXT: Index: 0
378; CHECK-NEXT: Offset: 0x0000059C
379; CHECK-NEXT: - Type: R_WEBASSEMBLY_MEMORY_ADDR_LEB
380; CHECK-NEXT: Index: 0
381; CHECK-NEXT: Offset: 0x000005A8
382; CHECK-NEXT: - Type: R_WEBASSEMBLY_MEMORY_ADDR_LEB
383; CHECK-NEXT: Index: 0
384; CHECK-NEXT: Offset: 0x000005B4
385; CHECK-NEXT: - Type: R_WEBASSEMBLY_MEMORY_ADDR_LEB
386; CHECK-NEXT: Index: 0
387; CHECK-NEXT: Offset: 0x000005C0
388; CHECK-NEXT: - Type: R_WEBASSEMBLY_MEMORY_ADDR_LEB
389; CHECK-NEXT: Index: 0
390; CHECK-NEXT: Offset: 0x000005CC
391; CHECK-NEXT: - Type: R_WEBASSEMBLY_MEMORY_ADDR_LEB
392; CHECK-NEXT: Index: 0
393; CHECK-NEXT: Offset: 0x000005D8
394; CHECK-NEXT: - Type: R_WEBASSEMBLY_MEMORY_ADDR_LEB
395; CHECK-NEXT: Index: 0
396; CHECK-NEXT: Offset: 0x000005E4
397; CHECK-NEXT: - Type: R_WEBASSEMBLY_MEMORY_ADDR_LEB
398; CHECK-NEXT: Index: 0
399; CHECK-NEXT: Offset: 0x000005F0
400; CHECK-NEXT: - Type: R_WEBASSEMBLY_MEMORY_ADDR_LEB
401; CHECK-NEXT: Index: 1
402; CHECK-NEXT: Offset: 0x000005FC
403; CHECK-NEXT: - Type: R_WEBASSEMBLY_MEMORY_ADDR_LEB
404; CHECK-NEXT: Index: 1
405; CHECK-NEXT: Offset: 0x00000608
406; CHECK-NEXT: - Type: R_WEBASSEMBLY_FUNCTION_INDEX_LEB
407; CHECK-NEXT: Index: 129
408; CHECK-NEXT: Offset: 0x00000611
409; CHECK-NEXT: Functions:
410; CHECK-NEXT: - Locals:
411; CHECK-NEXT: Body: 4100280284808080000B
412; CHECK-NEXT: - Locals:
413; CHECK-NEXT: Body: 4100280284808080000B
414; CHECK-NEXT: - Locals:
415; CHECK-NEXT: Body: 4100280284808080000B
416; CHECK-NEXT: - Locals:
417; CHECK-NEXT: Body: 4100280284808080000B
418; CHECK-NEXT: - Locals:
419; CHECK-NEXT: Body: 4100280284808080000B
420; CHECK-NEXT: - Locals:
421; CHECK-NEXT: Body: 4100280284808080000B
422; CHECK-NEXT: - Locals:
423; CHECK-NEXT: Body: 4100280284808080000B
424; CHECK-NEXT: - Locals:
425; CHECK-NEXT: Body: 4100280284808080000B
426; CHECK-NEXT: - Locals:
427; CHECK-NEXT: Body: 4100280284808080000B
428; CHECK-NEXT: - Locals:
429; CHECK-NEXT: Body: 4100280284808080000B
430; CHECK-NEXT: - Locals:
431; CHECK-NEXT: Body: 4100280284808080000B
432; CHECK-NEXT: - Locals:
433; CHECK-NEXT: Body: 4100280284808080000B
434; CHECK-NEXT: - Locals:
435; CHECK-NEXT: Body: 4100280284808080000B
436; CHECK-NEXT: - Locals:
437; CHECK-NEXT: Body: 4100280284808080000B
438; CHECK-NEXT: - Locals:
439; CHECK-NEXT: Body: 4100280284808080000B
440; CHECK-NEXT: - Locals:
441; CHECK-NEXT: Body: 4100280284808080000B
442; CHECK-NEXT: - Locals:
443; CHECK-NEXT: Body: 4100280284808080000B
444; CHECK-NEXT: - Locals:
445; CHECK-NEXT: Body: 4100280284808080000B
446; CHECK-NEXT: - Locals:
447; CHECK-NEXT: Body: 4100280284808080000B
448; CHECK-NEXT: - Locals:
449; CHECK-NEXT: Body: 4100280284808080000B
450; CHECK-NEXT: - Locals:
451; CHECK-NEXT: Body: 4100280284808080000B
452; CHECK-NEXT: - Locals:
453; CHECK-NEXT: Body: 4100280284808080000B
454; CHECK-NEXT: - Locals:
455; CHECK-NEXT: Body: 4100280284808080000B
456; CHECK-NEXT: - Locals:
457; CHECK-NEXT: Body: 4100280284808080000B
458; CHECK-NEXT: - Locals:
459; CHECK-NEXT: Body: 4100280284808080000B
460; CHECK-NEXT: - Locals:
461; CHECK-NEXT: Body: 4100280284808080000B
462; CHECK-NEXT: - Locals:
463; CHECK-NEXT: Body: 4100280284808080000B
464; CHECK-NEXT: - Locals:
465; CHECK-NEXT: Body: 4100280284808080000B
466; CHECK-NEXT: - Locals:
467; CHECK-NEXT: Body: 4100280284808080000B
468; CHECK-NEXT: - Locals:
469; CHECK-NEXT: Body: 4100280284808080000B
470; CHECK-NEXT: - Locals:
471; CHECK-NEXT: Body: 4100280284808080000B
472; CHECK-NEXT: - Locals:
473; CHECK-NEXT: Body: 4100280284808080000B
474; CHECK-NEXT: - Locals:
475; CHECK-NEXT: Body: 4100280284808080000B
476; CHECK-NEXT: - Locals:
477; CHECK-NEXT: Body: 4100280284808080000B
478; CHECK-NEXT: - Locals:
479; CHECK-NEXT: Body: 4100280284808080000B
480; CHECK-NEXT: - Locals:
481; CHECK-NEXT: Body: 4100280284808080000B
482; CHECK-NEXT: - Locals:
483; CHECK-NEXT: Body: 4100280284808080000B
484; CHECK-NEXT: - Locals:
485; CHECK-NEXT: Body: 4100280284808080000B
486; CHECK-NEXT: - Locals:
487; CHECK-NEXT: Body: 4100280284808080000B
488; CHECK-NEXT: - Locals:
489; CHECK-NEXT: Body: 4100280284808080000B
490; CHECK-NEXT: - Locals:
491; CHECK-NEXT: Body: 4100280284808080000B
492; CHECK-NEXT: - Locals:
493; CHECK-NEXT: Body: 4100280284808080000B
494; CHECK-NEXT: - Locals:
495; CHECK-NEXT: Body: 4100280284808080000B
496; CHECK-NEXT: - Locals:
497; CHECK-NEXT: Body: 4100280284808080000B
498; CHECK-NEXT: - Locals:
499; CHECK-NEXT: Body: 4100280284808080000B
500; CHECK-NEXT: - Locals:
501; CHECK-NEXT: Body: 4100280284808080000B
502; CHECK-NEXT: - Locals:
503; CHECK-NEXT: Body: 4100280284808080000B
504; CHECK-NEXT: - Locals:
505; CHECK-NEXT: Body: 4100280284808080000B
506; CHECK-NEXT: - Locals:
507; CHECK-NEXT: Body: 4100280284808080000B
508; CHECK-NEXT: - Locals:
509; CHECK-NEXT: Body: 4100280284808080000B
510; CHECK-NEXT: - Locals:
511; CHECK-NEXT: Body: 4100280284808080000B
512; CHECK-NEXT: - Locals:
513; CHECK-NEXT: Body: 4100280284808080000B
514; CHECK-NEXT: - Locals:
515; CHECK-NEXT: Body: 4100280284808080000B
516; CHECK-NEXT: - Locals:
517; CHECK-NEXT: Body: 4100280284808080000B
518; CHECK-NEXT: - Locals:
519; CHECK-NEXT: Body: 4100280284808080000B
520; CHECK-NEXT: - Locals:
521; CHECK-NEXT: Body: 4100280284808080000B
522; CHECK-NEXT: - Locals:
523; CHECK-NEXT: Body: 4100280284808080000B
524; CHECK-NEXT: - Locals:
525; CHECK-NEXT: Body: 4100280284808080000B
526; CHECK-NEXT: - Locals:
527; CHECK-NEXT: Body: 4100280284808080000B
528; CHECK-NEXT: - Locals:
529; CHECK-NEXT: Body: 4100280284808080000B
530; CHECK-NEXT: - Locals:
531; CHECK-NEXT: Body: 4100280284808080000B
532; CHECK-NEXT: - Locals:
533; CHECK-NEXT: Body: 4100280284808080000B
534; CHECK-NEXT: - Locals:
535; CHECK-NEXT: Body: 4100280284808080000B
536; CHECK-NEXT: - Locals:
537; CHECK-NEXT: Body: 4100280284808080000B
538; CHECK-NEXT: - Locals:
539; CHECK-NEXT: Body: 4100280284808080000B
540; CHECK-NEXT: - Locals:
541; CHECK-NEXT: Body: 4100280284808080000B
542; CHECK-NEXT: - Locals:
543; CHECK-NEXT: Body: 4100280284808080000B
544; CHECK-NEXT: - Locals:
545; CHECK-NEXT: Body: 4100280284808080000B
546; CHECK-NEXT: - Locals:
547; CHECK-NEXT: Body: 4100280284808080000B
548; CHECK-NEXT: - Locals:
549; CHECK-NEXT: Body: 4100280284808080000B
550; CHECK-NEXT: - Locals:
551; CHECK-NEXT: Body: 4100280284808080000B
552; CHECK-NEXT: - Locals:
553; CHECK-NEXT: Body: 4100280284808080000B
554; CHECK-NEXT: - Locals:
555; CHECK-NEXT: Body: 4100280284808080000B
556; CHECK-NEXT: - Locals:
557; CHECK-NEXT: Body: 4100280284808080000B
558; CHECK-NEXT: - Locals:
559; CHECK-NEXT: Body: 4100280284808080000B
560; CHECK-NEXT: - Locals:
561; CHECK-NEXT: Body: 4100280284808080000B
562; CHECK-NEXT: - Locals:
563; CHECK-NEXT: Body: 4100280284808080000B
564; CHECK-NEXT: - Locals:
565; CHECK-NEXT: Body: 4100280284808080000B
566; CHECK-NEXT: - Locals:
567; CHECK-NEXT: Body: 4100280284808080000B
568; CHECK-NEXT: - Locals:
569; CHECK-NEXT: Body: 4100280284808080000B
570; CHECK-NEXT: - Locals:
571; CHECK-NEXT: Body: 4100280284808080000B
572; CHECK-NEXT: - Locals:
573; CHECK-NEXT: Body: 4100280284808080000B
574; CHECK-NEXT: - Locals:
575; CHECK-NEXT: Body: 4100280284808080000B
576; CHECK-NEXT: - Locals:
577; CHECK-NEXT: Body: 4100280284808080000B
578; CHECK-NEXT: - Locals:
579; CHECK-NEXT: Body: 4100280284808080000B
580; CHECK-NEXT: - Locals:
581; CHECK-NEXT: Body: 4100280284808080000B
582; CHECK-NEXT: - Locals:
583; CHECK-NEXT: Body: 4100280284808080000B
584; CHECK-NEXT: - Locals:
585; CHECK-NEXT: Body: 4100280284808080000B
586; CHECK-NEXT: - Locals:
587; CHECK-NEXT: Body: 4100280284808080000B
588; CHECK-NEXT: - Locals:
589; CHECK-NEXT: Body: 4100280284808080000B
590; CHECK-NEXT: - Locals:
591; CHECK-NEXT: Body: 4100280284808080000B
592; CHECK-NEXT: - Locals:
593; CHECK-NEXT: Body: 4100280284808080000B
594; CHECK-NEXT: - Locals:
595; CHECK-NEXT: Body: 4100280284808080000B
596; CHECK-NEXT: - Locals:
597; CHECK-NEXT: Body: 4100280284808080000B
598; CHECK-NEXT: - Locals:
599; CHECK-NEXT: Body: 4100280284808080000B
600; CHECK-NEXT: - Locals:
601; CHECK-NEXT: Body: 4100280284808080000B
602; CHECK-NEXT: - Locals:
603; CHECK-NEXT: Body: 4100280284808080000B
604; CHECK-NEXT: - Locals:
605; CHECK-NEXT: Body: 4100280284808080000B
606; CHECK-NEXT: - Locals:
607; CHECK-NEXT: Body: 4100280284808080000B
608; CHECK-NEXT: - Locals:
609; CHECK-NEXT: Body: 4100280284808080000B
610; CHECK-NEXT: - Locals:
611; CHECK-NEXT: Body: 4100280284808080000B
612; CHECK-NEXT: - Locals:
613; CHECK-NEXT: Body: 4100280284808080000B
614; CHECK-NEXT: - Locals:
615; CHECK-NEXT: Body: 4100280284808080000B
616; CHECK-NEXT: - Locals:
617; CHECK-NEXT: Body: 4100280284808080000B
618; CHECK-NEXT: - Locals:
619; CHECK-NEXT: Body: 4100280284808080000B
620; CHECK-NEXT: - Locals:
621; CHECK-NEXT: Body: 4100280284808080000B
622; CHECK-NEXT: - Locals:
623; CHECK-NEXT: Body: 4100280284808080000B
624; CHECK-NEXT: - Locals:
625; CHECK-NEXT: Body: 4100280284808080000B
626; CHECK-NEXT: - Locals:
627; CHECK-NEXT: Body: 4100280284808080000B
628; CHECK-NEXT: - Locals:
629; CHECK-NEXT: Body: 4100280284808080000B
630; CHECK-NEXT: - Locals:
631; CHECK-NEXT: Body: 4100280284808080000B
632; CHECK-NEXT: - Locals:
633; CHECK-NEXT: Body: 4100280284808080000B
634; CHECK-NEXT: - Locals:
635; CHECK-NEXT: Body: 4100280284808080000B
636; CHECK-NEXT: - Locals:
637; CHECK-NEXT: Body: 4100280284808080000B
638; CHECK-NEXT: - Locals:
639; CHECK-NEXT: Body: 4100280284808080000B
640; CHECK-NEXT: - Locals:
641; CHECK-NEXT: Body: 4100280284808080000B
642; CHECK-NEXT: - Locals:
643; CHECK-NEXT: Body: 4100280284808080000B
644; CHECK-NEXT: - Locals:
645; CHECK-NEXT: Body: 4100280284808080000B
646; CHECK-NEXT: - Locals:
647; CHECK-NEXT: Body: 4100280284808080000B
648; CHECK-NEXT: - Locals:
649; CHECK-NEXT: Body: 4100280284808080000B
650; CHECK-NEXT: - Locals:
651; CHECK-NEXT: Body: 4100280284808080000B
652; CHECK-NEXT: - Locals:
653; CHECK-NEXT: Body: 4100280284808080000B
654; CHECK-NEXT: - Locals:
655; CHECK-NEXT: Body: 4100280284808080000B
656; CHECK-NEXT: - Locals:
657; CHECK-NEXT: Body: 4100280284808080000B
658; CHECK-NEXT: - Locals:
659; CHECK-NEXT: Body: 4100280284808080000B
660; CHECK-NEXT: - Locals:
661; CHECK-NEXT: Body: 4100280284808080000B
662; CHECK-NEXT: - Locals:
663; CHECK-NEXT: Body: 4100280284808080000B
664; CHECK-NEXT: - Locals:
665; CHECK-NEXT: Body: 4100280280808080000B
666; CHECK-NEXT: - Locals:
667; CHECK-NEXT: Body: 4100280280808080000B
668; CHECK-NEXT: - Locals:
669; CHECK-NEXT: Body: 1081818080000B
670; CHECK-NEXT: - Type: DATA
671; CHECK-NEXT: Segments:
672; CHECK-NEXT: - SectionOffset: 6
673; CHECK-NEXT: MemoryIndex: 0
674; CHECK-NEXT: Offset:
675; CHECK-NEXT: Opcode: I32_CONST
676; CHECK-NEXT: Value: 0
677; CHECK-NEXT: Content: '01000000'
678; CHECK-NEXT: - SectionOffset: 15
679; CHECK-NEXT: MemoryIndex: 0
680; CHECK-NEXT: Offset:
681; CHECK-NEXT: Opcode: I32_CONST
682; CHECK-NEXT: Value: 4
683; CHECK-NEXT: Content: '01000000'
684; CHECK-NEXT: - Type: CUSTOM
685; CHECK-NEXT: Name: linking
686; CHECK-NEXT: DataSize: 8
687; CHECK-NEXT: SegmentInfo:
688; CHECK-NEXT: - Index: 0
689; CHECK-NEXT: Name: .data.g0
690; CHECK-NEXT: Alignment: 4
691; CHECK-NEXT: Flags: [ ]
692; CHECK-NEXT: - Index: 1
693; CHECK-NEXT: Name: .data.foo
694; CHECK-NEXT: Alignment: 4
695; CHECK-NEXT: Flags: [ ]
deps/lld/test/wasm/relocatable.ll created+194
...@@ -0,0 +1,194 @@
1; RUN: llc -filetype=obj -mtriple=wasm32-unknown-unknown-wasm %p/Inputs/hello.ll -o %t.hello.o
2; RUN: llc -filetype=obj -mtriple=wasm32-unknown-unknown-wasm %s -o %t.o
3; RUN: lld -flavor wasm -r -o %t.wasm %t.hello.o %t.o
4; RUN: obj2yaml %t.wasm | FileCheck %s
5
6; Function Attrs: nounwind
7define hidden i32 @my_func() local_unnamed_addr {
8entry:
9 %call = tail call i32 @foo_import()
10 ret i32 1
11}
12
13declare i32 @foo_import() local_unnamed_addr
14@data_import = external global i64
15
16@func_addr1 = hidden global i32()* @my_func, align 4
17@func_addr2 = hidden global i32()* @foo_import, align 4
18@data_addr1 = hidden global i64* @data_import, align 8
19
20; CHECK: --- !WASM
21; CHECK-NEXT: FileHeader:
22; CHECK-NEXT: Version: 0x00000001
23; CHECK-NEXT: Sections:
24; CHECK-NEXT: - Type: TYPE
25; CHECK-NEXT: Signatures:
26; CHECK-NEXT: - Index: 0
27; CHECK-NEXT: ReturnType: NORESULT
28; CHECK-NEXT: ParamTypes:
29; CHECK-NEXT: - Index: 1
30; CHECK-NEXT: ReturnType: NORESULT
31; CHECK-NEXT: ParamTypes:
32; CHECK-NEXT: - I32
33; CHECK-NEXT: - Index: 2
34; CHECK-NEXT: ReturnType: I32
35; CHECK-NEXT: ParamTypes:
36; CHECK-NEXT: - Type: IMPORT
37; CHECK-NEXT: Imports:
38; CHECK-NEXT: - Module: env
39; CHECK-NEXT: Field: puts
40; CHECK-NEXT: Kind: FUNCTION
41; CHECK-NEXT: SigIndex: 1
42; CHECK-NEXT: - Module: env
43; CHECK-NEXT: Field: foo_import
44; CHECK-NEXT: Kind: FUNCTION
45; CHECK-NEXT: SigIndex: 2
46; CHECK-NEXT: - Module: env
47; CHECK-NEXT: Field: data_import
48; CHECK-NEXT: Kind: GLOBAL
49; CHECK-NEXT: GlobalType: I32
50; CHECK-NEXT: GlobalMutable: false
51; CHECK-NEXT: - Type: FUNCTION
52; CHECK-NEXT: FunctionTypes: [ 0, 2 ]
53; CHECK-NEXT: - Type: TABLE
54; CHECK-NEXT: Tables:
55; CHECK-NEXT: - ElemType: ANYFUNC
56; CHECK-NEXT: Limits:
57; CHECK-NEXT: Flags: [ HAS_MAX ]
58; CHECK-NEXT: Initial: 0x00000002
59; CHECK-NEXT: Maximum: 0x00000002
60; CHECK-NEXT: - Type: MEMORY
61; CHECK-NEXT: Memories:
62; CHECK-NEXT: - Initial: 0x00000001
63; CHECK-NEXT: - Type: GLOBAL
64; CHECK-NEXT: Globals:
65; CHECK-NEXT: - Type: I32
66; CHECK-NEXT: Mutable: false
67; CHECK-NEXT: InitExpr:
68; CHECK-NEXT: Opcode: I32_CONST
69; CHECK-NEXT: Value: 0
70; CHECK-NEXT: - Type: I32
71; CHECK-NEXT: Mutable: false
72; CHECK-NEXT: InitExpr:
73; CHECK-NEXT: Opcode: I32_CONST
74; CHECK-NEXT: Value: 8
75; CHECK-NEXT: - Type: I32
76; CHECK-NEXT: Mutable: false
77; CHECK-NEXT: InitExpr:
78; CHECK-NEXT: Opcode: I32_CONST
79; CHECK-NEXT: Value: 12
80; CHECK-NEXT: - Type: I32
81; CHECK-NEXT: Mutable: false
82; CHECK-NEXT: InitExpr:
83; CHECK-NEXT: Opcode: I32_CONST
84; CHECK-NEXT: Value: 16
85; CHECK-NEXT: - Type: EXPORT
86; CHECK-NEXT: Exports:
87; CHECK-NEXT: - Name: hello
88; CHECK-NEXT: Kind: FUNCTION
89; CHECK-NEXT: Index: 2
90; CHECK-NEXT: - Name: my_func
91; CHECK-NEXT: Kind: FUNCTION
92; CHECK-NEXT: Index: 3
93; CHECK-NEXT: - Name: hello_str
94; CHECK-NEXT: Kind: GLOBAL
95; CHECK-NEXT: Index: 1
96; CHECK-NEXT: - Name: func_addr1
97; CHECK-NEXT: Kind: GLOBAL
98; CHECK-NEXT: Index: 2
99; CHECK-NEXT: - Name: func_addr2
100; CHECK-NEXT: Kind: GLOBAL
101; CHECK-NEXT: Index: 3
102; CHECK-NEXT: - Name: data_addr1
103; CHECK-NEXT: Kind: GLOBAL
104; CHECK-NEXT: Index: 4
105; CHECK-NEXT: - Type: ELEM
106; CHECK-NEXT: Segments:
107; CHECK-NEXT: - Offset:
108; CHECK-NEXT: Opcode: I32_CONST
109; CHECK-NEXT: Value: 0
110; CHECK-NEXT: Functions: [ 3, 1 ]
111; CHECK-NEXT: - Type: CODE
112; CHECK-NEXT: Relocations:
113; CHECK-NEXT: - Type: R_WEBASSEMBLY_MEMORY_ADDR_SLEB
114; CHECK-NEXT: Index: 1
115; CHECK-NEXT: Offset: 0x00000004
116; CHECK-NEXT: - Type: R_WEBASSEMBLY_FUNCTION_INDEX_LEB
117; CHECK-NEXT: Index: 0
118; CHECK-NEXT: Offset: 0x0000000A
119; CHECK-NEXT: - Type: R_WEBASSEMBLY_FUNCTION_INDEX_LEB
120; CHECK-NEXT: Index: 1
121; CHECK-NEXT: Offset: 0x00000013
122; CHECK-NEXT: Functions:
123; CHECK-NEXT: - Locals:
124; CHECK-NEXT: Body: 4180808080001080808080000B
125; CHECK-NEXT: - Locals:
126; CHECK-NEXT: Body: 1081808080001A41010B
127; CHECK-NEXT: - Type: DATA
128; CHECK-NEXT: Relocations:
129; CHECK-NEXT: - Type: R_WEBASSEMBLY_TABLE_INDEX_I32
130; CHECK-NEXT: Index: 0
131; CHECK-NEXT: Offset: 0x00000012
132; CHECK-NEXT: - Type: R_WEBASSEMBLY_TABLE_INDEX_I32
133; CHECK-NEXT: Index: 1
134; CHECK-NEXT: Offset: 0x0000001B
135; CHECK-NEXT: - Type: R_WEBASSEMBLY_MEMORY_ADDR_I32
136; CHECK-NEXT: Index: 0
137; CHECK-NEXT: Offset: 0x00000024
138; CHECK-NEXT: Segments:
139; CHECK-NEXT: - SectionOffset: 6
140; CHECK-NEXT: MemoryIndex: 0
141; CHECK-NEXT: Offset:
142; CHECK-NEXT: Opcode: I32_CONST
143; CHECK-NEXT: Value: 0
144; CHECK-NEXT: Content: 68656C6C6F0A00
145; CHECK-NEXT: - SectionOffset: 18
146; CHECK-NEXT: MemoryIndex: 0
147; CHECK-NEXT: Offset:
148; CHECK-NEXT: Opcode: I32_CONST
149; CHECK-NEXT: Value: 8
150; CHECK-NEXT: Content: '00000000'
151; CHECK-NEXT: - SectionOffset: 27
152; CHECK-NEXT: MemoryIndex: 0
153; CHECK-NEXT: Offset:
154; CHECK-NEXT: Opcode: I32_CONST
155; CHECK-NEXT: Value: 12
156; CHECK-NEXT: Content: '01000000'
157; CHECK-NEXT: - SectionOffset: 36
158; CHECK-NEXT: MemoryIndex: 0
159; CHECK-NEXT: Offset:
160; CHECK-NEXT: Opcode: I32_CONST
161; CHECK-NEXT: Value: 16
162; CHECK-NEXT: Content: FFFFFFFF
163; CHECK-NEXT: - Type: CUSTOM
164; CHECK-NEXT: Name: linking
165; CHECK-NEXT: DataSize: 20
166; CHECK-NEXT: SegmentInfo:
167; CHECK-NEXT: - Index: 0
168; CHECK-NEXT: Name: .rodata.hello_str
169; CHECK-NEXT: Alignment: 1
170; CHECK-NEXT: Flags: [ ]
171; CHECK-NEXT: - Index: 1
172; CHECK-NEXT: Name: .data.func_addr1
173; CHECK-NEXT: Alignment: 4
174; CHECK-NEXT: Flags: [ ]
175; CHECK-NEXT: - Index: 2
176; CHECK-NEXT: Name: .data.func_addr2
177; CHECK-NEXT: Alignment: 4
178; CHECK-NEXT: Flags: [ ]
179; CHECK-NEXT: - Index: 3
180; CHECK-NEXT: Name: .data.data_addr1
181; CHECK-NEXT: Alignment: 8
182; CHECK-NEXT: Flags: [ ]
183; CHECK-NEXT: - Type: CUSTOM
184; CHECK-NEXT: Name: name
185; CHECK-NEXT: FunctionNames:
186; CHECK-NEXT: - Index: 0
187; CHECK-NEXT: Name: puts
188; CHECK-NEXT: - Index: 1
189; CHECK-NEXT: Name: foo_import
190; CHECK-NEXT: - Index: 2
191; CHECK-NEXT: Name: hello
192; CHECK-NEXT: - Index: 3
193; CHECK-NEXT: Name: my_func
194; CHECK-NEXT: ...
deps/lld/test/wasm/signature-mismatch.ll created+16
...@@ -0,0 +1,16 @@
1; RUN: llc -filetype=obj -mtriple=wasm32-unknown-unknown-wasm %p/Inputs/ret32.ll -o %t.ret32.o
2; RUN: llc -filetype=obj -mtriple=wasm32-unknown-unknown-wasm %s -o %t.main.o
3; RUN: not lld -flavor wasm --check-signatures -o %t.wasm %t.main.o %t.ret32.o 2>&1 | FileCheck %s
4
5; Function Attrs: nounwind
6define hidden void @_start() local_unnamed_addr #0 {
7entry:
8 %call = tail call i32 @ret32(i32 1, i64 2, i32 3) #2
9 ret void
10}
11
12declare i32 @ret32(i32, i64, i32) local_unnamed_addr #1
13
14; CHECK: error: function signature mismatch: ret32
15; CHECK-NEXT: >>> defined as (I32, I64, I32) -> I32 in {{.*}}.main.o
16; CHECK-NEXT: >>> defined as (F32) -> I32 in {{.*}}.ret32.o
deps/lld/test/wasm/stack-pointer.ll created+64
...@@ -0,0 +1,64 @@
1; RUN: llc -filetype=obj -mtriple=wasm32-unknown-unknown-wasm %s -o %t.o
2; RUN: lld -flavor wasm --emit-relocs -o %t.wasm %t.o
3; RUN: obj2yaml %t.wasm | FileCheck %s
4
5; Function Attrs: nounwind
6define hidden i32 @_start() local_unnamed_addr {
7entry:
8 %retval = alloca i32, align 4
9 ret i32 0
10}
11
12; CHECK: --- !WASM
13; CHECK-NEXT: FileHeader:
14; CHECK-NEXT: Version: 0x00000001
15; CHECK-NEXT: Sections:
16; CHECK-NEXT: - Type: TYPE
17; CHECK-NEXT: Signatures:
18; CHECK-NEXT: - Index: 0
19; CHECK-NEXT: ReturnType: I32
20; CHECK-NEXT: ParamTypes:
21; CHECK-NEXT: - Type: FUNCTION
22; CHECK-NEXT: FunctionTypes: [ 0 ]
23; CHECK-NEXT: - Type: TABLE
24; CHECK-NEXT: Tables:
25; CHECK-NEXT: - ElemType: ANYFUNC
26; CHECK-NEXT: Limits:
27; CHECK-NEXT: Flags: [ HAS_MAX ]
28; CHECK-NEXT: Initial: 0x00000001
29; CHECK-NEXT: Maximum: 0x00000001
30; CHECK-NEXT: - Type: MEMORY
31; CHECK-NEXT: Memories:
32; CHECK-NEXT: - Initial: 0x00000002
33; CHECK-NEXT: - Type: GLOBAL
34; CHECK-NEXT: Globals:
35; CHECK-NEXT: - Type: I32
36; CHECK-NEXT: Mutable: true
37; CHECK-NEXT: InitExpr:
38; CHECK-NEXT: Opcode: I32_CONST
39; CHECK-NEXT: Value: 66560
40; CHECK-NEXT: - Type: EXPORT
41; CHECK-NEXT: Exports:
42; CHECK-NEXT: - Name: memory
43; CHECK-NEXT: Kind: MEMORY
44; CHECK-NEXT: Index: 0
45; CHECK-NEXT: - Name: _start
46; CHECK-NEXT: Kind: FUNCTION
47; CHECK-NEXT: Index: 0
48; CHECK-NEXT: - Type: CODE
49; CHECK-NEXT: Relocations:
50; CHECK-NEXT: - Type: R_WEBASSEMBLY_GLOBAL_INDEX_LEB
51; CHECK-NEXT: Index: 0
52; CHECK-NEXT: Offset: 0x00000004
53; CHECK-NEXT: Functions:
54; CHECK-NEXT: - Locals:
55; CHECK-NEXT: Body: 23808080800041106B1A41000B
56; CHECK-NEXT: - Type: CUSTOM
57; CHECK-NEXT: Name: linking
58; CHECK-NEXT: DataSize: 0
59; CHECK-NEXT: - Type: CUSTOM
60; CHECK-NEXT: Name: name
61; CHECK-NEXT: FunctionNames:
62; CHECK-NEXT: - Index: 0
63; CHECK-NEXT: Name: _start
64; CHECK-NEXT: ...
deps/lld/test/wasm/strip-debug.test created+6
...@@ -0,0 +1,6 @@
1RUN: llc -filetype=obj -mtriple=wasm32-unknown-unknown-wasm %p/Inputs/ret32.ll -o %t.ret32.o
2RUN: lld -flavor wasm --strip-debug --entry=ret32 -o %t.wasm %t.ret32.o
3RUN: obj2yaml %t.wasm | FileCheck %s
4
5# Check that there is no name section
6CHECK-NOT: Name: name
deps/lld/test/wasm/symbol-type-mismatch.ll created+9
...@@ -0,0 +1,9 @@
1; RUN: llc -filetype=obj -mtriple=wasm32-unknown-unknown-wasm %s -o %t.o
2; RUN: llc -filetype=obj -mtriple=wasm32-unknown-unknown-wasm %p/Inputs/ret32.ll -o %t.ret32.o
3; RUN: not lld -flavor wasm -o %t.wasm %t.o %t.ret32.o 2>&1 | FileCheck %s
4
5@ret32 = extern_weak global i32, align 4
6
7; CHECK: error: symbol type mismatch: ret32
8; CHECK: >>> defined as Global in {{.*}}symbol-type-mismatch.ll.tmp.o
9; CHECK: >>> defined as Function in {{.*}}.ret32.o
deps/lld/test/wasm/undefined-entry.test created+4
...@@ -0,0 +1,4 @@
1RUN: llc -filetype=obj -mtriple=wasm32-unknown-unknown-wasm %p/Inputs/ret32.ll -o %t.ret32.o
2RUN: not lld -flavor wasm -o %t.wasm %t.ret32.o 2>&1 | FileCheck %s
3
4CHECK: error: undefined symbol: _start
deps/lld/test/wasm/undefined.ll created+20
...@@ -0,0 +1,20 @@
1; RUN: llc -filetype=obj -mtriple=wasm32-unknown-unknown-wasm %s -o %t.o
2; RUN: lld -flavor wasm --allow-undefined -o %t.wasm %t.o
3
4; Fails due to undefined 'foo'
5; RUN: not lld -flavor wasm -o %t.wasm %t.o 2>&1 | FileCheck %s
6; CHECK: error: {{.*}}.o: undefined symbol: foo
7
8; But succeeds if we pass a file containing 'foo' as --allow-undefined-file.
9; RUN: echo 'foo' > %t.txt
10; RUN: lld -flavor wasm --allow-undefined-file=%t.txt -o %t.wasm %t.o
11
12; Takes the address of the external foo() resulting in undefined external
13@bar = hidden local_unnamed_addr global i8* bitcast (i32 ()* @foo to i8*), align 4
14
15declare i32 @foo() #0
16
17define hidden void @_start() local_unnamed_addr #0 {
18entry:
19 ret void
20}
deps/lld/test/wasm/version.ll created+13
...@@ -0,0 +1,13 @@
1; RUN: llc -filetype=obj -mtriple=wasm32-unknown-unknown-wasm %s -o %t.o
2; RUN: lld -flavor wasm -o %t.wasm %t.o
3; RUN: llvm-readobj -file-headers %t.wasm | FileCheck %s
4
5define hidden void @_start() local_unnamed_addr #0 {
6entry:
7 ret void
8}
9
10; CHECK: Format: WASM
11; CHECK: Arch: wasm32
12; CHECK: AddressSize: 32bit
13; CHECK: Version: 0x1
deps/lld/test/wasm/visibility-hidden.ll created+46
...@@ -0,0 +1,46 @@
1; RUN: llc -mtriple=wasm32-unknown-unknown-wasm -filetype=obj -o %t.o %s
2; RUN: llc -mtriple=wasm32-unknown-unknown-wasm -filetype=obj %S/Inputs/hidden.ll -o %t2.o
3; RUN: llvm-ar rcs %t2.a %t2.o
4; RUN: lld -flavor wasm %t.o %t2.a -o %t.wasm
5; RUN: obj2yaml %t.wasm | FileCheck %s
6
7; Test that hidden symbols are not exported, whether pulled in from an archive
8; or directly.
9
10define hidden i32 @objectHidden() {
11entry:
12 ret i32 0
13}
14
15define i32 @objectDefault() {
16entry:
17 ret i32 0
18}
19
20declare i32 @archiveHidden()
21declare i32 @archiveDefault()
22
23define i32 @_start() {
24entry:
25 %call1 = call i32 @objectHidden()
26 %call2 = call i32 @objectDefault()
27 %call3 = call i32 @archiveHidden()
28 %call4 = call i32 @archiveDefault()
29 ret i32 0
30}
31
32; CHECK: - Type: EXPORT
33; CHECK-NEXT: Exports:
34; CHECK-NEXT: - Name: memory
35; CHECK-NEXT: Kind: MEMORY
36; CHECK-NEXT: Index: 0
37; CHECK-NEXT: - Name: _start
38; CHECK-NEXT: Kind: FUNCTION
39; CHECK-NEXT: Index: 2
40; CHECK-NEXT: - Name: archiveDefault
41; CHECK-NEXT: Kind: FUNCTION
42; CHECK-NEXT: Index: 4
43; CHECK-NEXT: - Name: objectDefault
44; CHECK-NEXT: Kind: FUNCTION
45; CHECK-NEXT: Index: 1
46; CHECK-NEXT: - Type:
deps/lld/test/wasm/weak-alias-overide.ll created+123
...@@ -0,0 +1,123 @@
1; RUN: llc -mtriple=wasm32-unknown-unknown-wasm -filetype=obj -o %t.o %s
2; RUN: llc -mtriple=wasm32-unknown-unknown-wasm -filetype=obj %S/Inputs/weak-alias.ll -o %t2.o
3; RUN: lld -flavor wasm %t.o %t2.o -o %t.wasm
4; RUN: obj2yaml %t.wasm | FileCheck %s
5
6; Test that the strongly defined alias_fn from this file is used both here
7; and in call_alias.
8
9define i32 @alias_fn() local_unnamed_addr #1 {
10 ret i32 1
11}
12
13; Function Attrs: nounwind uwtable
14define void @_start() local_unnamed_addr #1 {
15entry:
16 %call = tail call i32 @alias_fn() #2
17 ret void
18}
19
20; CHECK: --- !WASM
21; CHECK-NEXT: FileHeader:
22; CHECK-NEXT: Version: 0x00000001
23; CHECK-NEXT: Sections:
24; CHECK-NEXT: - Type: TYPE
25; CHECK-NEXT: Signatures:
26; CHECK-NEXT: - Index: 0
27; CHECK-NEXT: ReturnType: I32
28; CHECK-NEXT: ParamTypes:
29; CHECK-NEXT: - Index: 1
30; CHECK-NEXT: ReturnType: NORESULT
31; CHECK-NEXT: ParamTypes:
32; CHECK-NEXT: - Type: FUNCTION
33; CHECK-NEXT: FunctionTypes: [ 0, 1, 0, 0, 0, 0, 0 ]
34; CHECK-NEXT: - Type: TABLE
35; CHECK-NEXT: Tables:
36; CHECK-NEXT: - ElemType: ANYFUNC
37; CHECK-NEXT: Limits:
38; CHECK-NEXT: Flags: [ HAS_MAX ]
39; CHECK-NEXT: Initial: 0x00000003
40; CHECK-NEXT: Maximum: 0x00000003
41; CHECK-NEXT: - Type: MEMORY
42; CHECK-NEXT: Memories:
43; CHECK-NEXT: - Initial: 0x00000002
44; CHECK-NEXT: - Type: GLOBAL
45; CHECK-NEXT: Globals:
46; CHECK-NEXT: - Type: I32
47; CHECK-NEXT: Mutable: true
48; CHECK-NEXT: InitExpr:
49; CHECK-NEXT: Opcode: I32_CONST
50; CHECK-NEXT: Value: 66560
51; CHECK-NEXT: - Type: EXPORT
52; CHECK-NEXT: Exports:
53; CHECK-NEXT: - Name: memory
54; CHECK-NEXT: Kind: MEMORY
55; CHECK-NEXT: Index: 0
56; CHECK-NEXT: - Name: _start
57; CHECK-NEXT: Kind: FUNCTION
58; CHECK-NEXT: Index: 1
59; CHECK-NEXT: - Name: alias_fn
60; CHECK-NEXT: Kind: FUNCTION
61; CHECK-NEXT: Index: 0
62; CHECK-NEXT: - Name: direct_fn
63; CHECK-NEXT: Kind: FUNCTION
64; CHECK-NEXT: Index: 2
65; CHECK-NEXT: - Name: call_direct
66; CHECK-NEXT: Kind: FUNCTION
67; CHECK-NEXT: Index: 3
68; CHECK-NEXT: - Name: call_alias
69; CHECK-NEXT: Kind: FUNCTION
70; CHECK-NEXT: Index: 4
71; CHECK-NEXT: - Name: call_alias_ptr
72; CHECK-NEXT: Kind: FUNCTION
73; CHECK-NEXT: Index: 5
74; CHECK-NEXT: - Name: call_direct_ptr
75; CHECK-NEXT: Kind: FUNCTION
76; CHECK-NEXT: Index: 6
77; CHECK-NEXT: - Type: ELEM
78; CHECK-NEXT: Segments:
79; CHECK-NEXT: - Offset:
80; CHECK-NEXT: Opcode: I32_CONST
81; CHECK-NEXT: Value: 1
82; CHECK-NEXT: Functions: [ 0, 2 ]
83; CHECK-NEXT: - Type: CODE
84; CHECK-NEXT: Functions:
85; CHECK-NEXT: - Locals:
86; CHECK-NEXT: Body: 41010B
87; CHECK-NEXT: - Locals:
88; CHECK-NEXT: Body: 1080808080001A0B
89; CHECK-NEXT: - Locals:
90; CHECK-NEXT: Body: 41000B
91; CHECK-NEXT: - Locals:
92; CHECK-NEXT: Body: 1082808080000B
93; CHECK-NEXT: - Locals:
94; CHECK-NEXT: Body: 1080808080000B
95; CHECK-NEXT: - Locals:
96; CHECK-NEXT: - Type: I32
97; CHECK-NEXT: Count: 2
98; CHECK-NEXT: Body: 23808080800041106B220024808080800020004181808080003602081080808080002101200041106A24808080800020010B
99; CHECK-NEXT: - Locals:
100; CHECK-NEXT: - Type: I32
101; CHECK-NEXT: Count: 2
102; CHECK-NEXT: Body: 23808080800041106B220024808080800020004182808080003602081082808080002101200041106A24808080800020010B
103; CHECK-NEXT: - Type: CUSTOM
104; CHECK-NEXT: Name: linking
105; CHECK-NEXT: DataSize: 0
106; CHECK-NEXT: - Type: CUSTOM
107; CHECK-NEXT: Name: name
108; CHECK-NEXT: FunctionNames:
109; CHECK-NEXT: - Index: 0
110; CHECK-NEXT: Name: alias_fn
111; CHECK-NEXT: - Index: 1
112; CHECK-NEXT: Name: _start
113; CHECK-NEXT: - Index: 2
114; CHECK-NEXT: Name: direct_fn
115; CHECK-NEXT: - Index: 3
116; CHECK-NEXT: Name: call_direct
117; CHECK-NEXT: - Index: 4
118; CHECK-NEXT: Name: call_alias
119; CHECK-NEXT: - Index: 5
120; CHECK-NEXT: Name: call_alias_ptr
121; CHECK-NEXT: - Index: 6
122; CHECK-NEXT: Name: call_direct_ptr
123; CHECK-NEXT: ...
deps/lld/test/wasm/weak-alias.ll created+113
...@@ -0,0 +1,113 @@
1; RUN: llc -mtriple=wasm32-unknown-unknown-wasm -filetype=obj -o %t.o %s
2; RUN: llc -mtriple=wasm32-unknown-unknown-wasm -filetype=obj %S/Inputs/weak-alias.ll -o %t2.o
3; RUN: lld -flavor wasm %t.o %t2.o -o %t.wasm
4; RUN: obj2yaml %t.wasm | FileCheck %s
5
6; Test that weak aliases (alias_fn is a weak alias of direct_fn) are linked correctly
7
8declare i32 @alias_fn() local_unnamed_addr #1
9
10; Function Attrs: nounwind uwtable
11define i32 @_start() local_unnamed_addr #1 {
12entry:
13 %call = tail call i32 @alias_fn() #2
14 ret i32 %call
15}
16
17; CHECK: --- !WASM
18; CHECK-NEXT: FileHeader:
19; CHECK-NEXT: Version: 0x00000001
20; CHECK-NEXT: Sections:
21; CHECK-NEXT: - Type: TYPE
22; CHECK-NEXT: Signatures:
23; CHECK-NEXT: - Index: 0
24; CHECK-NEXT: ReturnType: I32
25; CHECK-NEXT: ParamTypes:
26; CHECK-NEXT: - Type: FUNCTION
27; CHECK-NEXT: FunctionTypes: [ 0, 0, 0, 0, 0, 0 ]
28; CHECK-NEXT: - Type: TABLE
29; CHECK-NEXT: Tables:
30; CHECK-NEXT: - ElemType: ANYFUNC
31; CHECK-NEXT: Limits:
32; CHECK-NEXT: Flags: [ HAS_MAX ]
33; CHECK-NEXT: Initial: 0x00000003
34; CHECK-NEXT: Maximum: 0x00000003
35; CHECK-NEXT: - Type: MEMORY
36; CHECK-NEXT: Memories:
37; CHECK-NEXT: - Initial: 0x00000002
38; CHECK-NEXT: - Type: GLOBAL
39; CHECK-NEXT: Globals:
40; CHECK-NEXT: - Type: I32
41; CHECK-NEXT: Mutable: true
42; CHECK-NEXT: InitExpr:
43; CHECK-NEXT: Opcode: I32_CONST
44; CHECK-NEXT: Value: 66560
45; CHECK-NEXT: - Type: EXPORT
46; CHECK-NEXT: Exports:
47; CHECK-NEXT: - Name: memory
48; CHECK-NEXT: Kind: MEMORY
49; CHECK-NEXT: Index: 0
50; CHECK-NEXT: - Name: _start
51; CHECK-NEXT: Kind: FUNCTION
52; CHECK-NEXT: Index: 0
53; CHECK-NEXT: - Name: alias_fn
54; CHECK-NEXT: Kind: FUNCTION
55; CHECK-NEXT: Index: 1
56; CHECK-NEXT: - Name: direct_fn
57; CHECK-NEXT: Kind: FUNCTION
58; CHECK-NEXT: Index: 1
59; CHECK-NEXT: - Name: call_direct
60; CHECK-NEXT: Kind: FUNCTION
61; CHECK-NEXT: Index: 2
62; CHECK-NEXT: - Name: call_alias
63; CHECK-NEXT: Kind: FUNCTION
64; CHECK-NEXT: Index: 3
65; CHECK-NEXT: - Name: call_alias_ptr
66; CHECK-NEXT: Kind: FUNCTION
67; CHECK-NEXT: Index: 4
68; CHECK-NEXT: - Name: call_direct_ptr
69; CHECK-NEXT: Kind: FUNCTION
70; CHECK-NEXT: Index: 5
71; CHECK-NEXT: - Type: ELEM
72; CHECK-NEXT: Segments:
73; CHECK-NEXT: - Offset:
74; CHECK-NEXT: Opcode: I32_CONST
75; CHECK-NEXT: Value: 1
76; CHECK-NEXT: Functions: [ 1, 1 ]
77; CHECK-NEXT: - Type: CODE
78; CHECK-NEXT: Functions:
79; CHECK-NEXT: - Locals:
80; CHECK-NEXT: Body: 1081808080000B
81; CHECK-NEXT: - Locals:
82; CHECK-NEXT: Body: 41000B
83; CHECK-NEXT: - Locals:
84; CHECK-NEXT: Body: 1081808080000B
85; CHECK-NEXT: - Locals:
86; CHECK-NEXT: Body: 1081808080000B
87; CHECK-NEXT: - Locals:
88; CHECK-NEXT: - Type: I32
89; CHECK-NEXT: Count: 2
90; CHECK-NEXT: Body: 23808080800041106B220024808080800020004181808080003602081081808080002101200041106A24808080800020010B
91; CHECK-NEXT: - Locals:
92; CHECK-NEXT: - Type: I32
93; CHECK-NEXT: Count: 2
94; CHECK-NEXT: Body: 23808080800041106B220024808080800020004182808080003602081081808080002101200041106A24808080800020010B
95; CHECK-NEXT: - Type: CUSTOM
96; CHECK-NEXT: Name: linking
97; CHECK-NEXT: DataSize: 0
98; CHECK-NEXT: - Type: CUSTOM
99; CHECK-NEXT: Name: name
100; CHECK-NEXT: FunctionNames:
101; CHECK-NEXT: - Index: 0
102; CHECK-NEXT: Name: _start
103; CHECK-NEXT: - Index: 1
104; CHECK-NEXT: Name: direct_fn
105; CHECK-NEXT: - Index: 2
106; CHECK-NEXT: Name: call_direct
107; CHECK-NEXT: - Index: 3
108; CHECK-NEXT: Name: call_alias
109; CHECK-NEXT: - Index: 4
110; CHECK-NEXT: Name: call_alias_ptr
111; CHECK-NEXT: - Index: 5
112; CHECK-NEXT: Name: call_direct_ptr
113; CHECK-NEXT: ...
deps/lld/test/wasm/weak-external.ll created+86
...@@ -0,0 +1,86 @@
1; RUN: llc -mtriple=wasm32-unknown-unknown-wasm -filetype=obj -o %t.o %s
2; RUN: lld -flavor wasm -strip-debug %t.o -o %t.wasm
3; RUN: obj2yaml %t.wasm | FileCheck %s
4
5; Test that undefined weak externals (global_var) and (foo) don't cause
6; link failures and resolve to zero.
7
8@global_var = extern_weak global i32, align 4
9
10declare extern_weak i32 @foo()
11
12define i8* @get_address_of_foo() #0 {
13entry:
14 ret i8* bitcast (i32 ()* @foo to i8*)
15}
16
17define i32* @get_address_of_global_var() #0 {
18 ret i32* @global_var
19}
20
21define i32 @_start() #0 {
22entry:
23 %0 = load i32, i32* @global_var, align 4
24 ret i32 %0
25}
26
27; CHECK: --- !WASM
28; CHECK-NEXT: FileHeader:
29; CHECK-NEXT: Version: 0x00000001
30; CHECK-NEXT: Sections:
31; CHECK-NEXT: - Type: TYPE
32; CHECK-NEXT: Signatures:
33; CHECK-NEXT: - Index: 0
34; CHECK-NEXT: ReturnType: I32
35; CHECK-NEXT: ParamTypes:
36; CHECK-NEXT: - Type: FUNCTION
37; CHECK-NEXT: FunctionTypes: [ 0, 0, 0 ]
38; CHECK-NEXT: - Type: TABLE
39; CHECK-NEXT: Tables:
40; CHECK-NEXT: - ElemType: ANYFUNC
41; CHECK-NEXT: Limits:
42; CHECK-NEXT: Flags: [ HAS_MAX ]
43; CHECK-NEXT: Initial: 0x00000002
44; CHECK-NEXT: Maximum: 0x00000002
45; CHECK-NEXT: - Type: MEMORY
46; CHECK-NEXT: Memories:
47; CHECK-NEXT: - Initial: 0x00000002
48; CHECK-NEXT: - Type: GLOBAL
49; CHECK-NEXT: Globals:
50; CHECK-NEXT: - Type: I32
51; CHECK-NEXT: Mutable: true
52; CHECK-NEXT: InitExpr:
53; CHECK-NEXT: Opcode: I32_CONST
54; CHECK-NEXT: Value: 66560
55; CHECK-NEXT: - Type: EXPORT
56; CHECK-NEXT: Exports:
57; CHECK-NEXT: - Name: memory
58; CHECK-NEXT: Kind: MEMORY
59; CHECK-NEXT: Index: 0
60; CHECK-NEXT: - Name: _start
61; CHECK-NEXT: Kind: FUNCTION
62; CHECK-NEXT: Index: 2
63; CHECK-NEXT: - Name: get_address_of_foo
64; CHECK-NEXT: Kind: FUNCTION
65; CHECK-NEXT: Index: 0
66; CHECK-NEXT: - Name: get_address_of_global_var
67; CHECK-NEXT: Kind: FUNCTION
68; CHECK-NEXT: Index: 1
69; CHECK-NEXT: - Type: ELEM
70; CHECK-NEXT: Segments:
71; CHECK-NEXT: - Offset:
72; CHECK-NEXT: Opcode: I32_CONST
73; CHECK-NEXT: Value: 1
74; CHECK-NEXT: Functions: [ 0 ]
75; CHECK-NEXT: - Type: CODE
76; CHECK-NEXT: Functions:
77; CHECK-NEXT: - Locals:
78; CHECK-NEXT: Body: 4181808080000B
79; CHECK-NEXT: - Locals:
80; CHECK-NEXT: Body: 41FFFFFFFF7F0B
81; CHECK-NEXT: - Locals:
82; CHECK-NEXT: Body: 41002802FFFFFFFF0F0B
83; CHECK-NEXT: - Type: CUSTOM
84; CHECK-NEXT: Name: linking
85; CHECK-NEXT: DataSize: 0
86; CHECK-NEXT: ...
deps/lld/test/wasm/weak-symbols.ll created+100
...@@ -0,0 +1,100 @@
1; RUN: llc -filetype=obj -mtriple=wasm32-unknown-unknown-wasm %p/Inputs/weak-symbol1.ll -o %t1.o
2; RUN: llc -filetype=obj -mtriple=wasm32-unknown-unknown-wasm %p/Inputs/weak-symbol2.ll -o %t2.o
3; RUN: llc -filetype=obj -mtriple=wasm32-unknown-unknown-wasm %s -o %t.o
4; RUN: lld -flavor wasm -o %t.wasm %t.o %t1.o %t2.o
5; RUN: obj2yaml %t.wasm | FileCheck %s
6
7declare i32 @weakFn() local_unnamed_addr
8@weakGlobal = external global i32
9
10define i32 @_start() local_unnamed_addr {
11entry:
12 %call = call i32 @weakFn()
13 %val = load i32, i32* @weakGlobal, align 4
14 ret i32 %val
15}
16
17; CHECK: --- !WASM
18; CHECK-NEXT: FileHeader:
19; CHECK-NEXT: Version: 0x00000001
20; CHECK-NEXT: Sections:
21; CHECK-NEXT: - Type: TYPE
22; CHECK-NEXT: Signatures:
23; CHECK-NEXT: - Index: 0
24; CHECK-NEXT: ReturnType: I32
25; CHECK-NEXT: ParamTypes:
26; CHECK-NEXT: - Type: FUNCTION
27; CHECK-NEXT: FunctionTypes: [ 0, 0, 0, 0, 0 ]
28; CHECK-NEXT: - Type: TABLE
29; CHECK-NEXT: Tables:
30; CHECK-NEXT: - ElemType: ANYFUNC
31; CHECK-NEXT: Limits:
32; CHECK-NEXT: Flags: [ HAS_MAX ]
33; CHECK-NEXT: Initial: 0x00000002
34; CHECK-NEXT: Maximum: 0x00000002
35; CHECK-NEXT: - Type: MEMORY
36; CHECK-NEXT: Memories:
37; CHECK-NEXT: - Initial: 0x00000002
38; CHECK-NEXT: - Type: GLOBAL
39; CHECK-NEXT: Globals:
40; CHECK-NEXT: - Type: I32
41; CHECK-NEXT: Mutable: true
42; CHECK-NEXT: InitExpr:
43; CHECK-NEXT: Opcode: I32_CONST
44; CHECK-NEXT: Value: 66576
45; CHECK-NEXT: - Type: EXPORT
46; CHECK-NEXT: Exports:
47; CHECK-NEXT: - Name: memory
48; CHECK-NEXT: Kind: MEMORY
49; CHECK-NEXT: Index: 0
50; CHECK-NEXT: - Name: _start
51; CHECK-NEXT: Kind: FUNCTION
52; CHECK-NEXT: Index: 0
53; CHECK-NEXT: - Name: weakFn
54; CHECK-NEXT: Kind: FUNCTION
55; CHECK-NEXT: Index: 1
56; CHECK-NEXT: - Name: exportWeak1
57; CHECK-NEXT: Kind: FUNCTION
58; CHECK-NEXT: Index: 2
59; CHECK-NEXT: - Name: exportWeak2
60; CHECK-NEXT: Kind: FUNCTION
61; CHECK-NEXT: Index: 4
62; CHECK-NEXT: - Type: ELEM
63; CHECK-NEXT: Segments:
64; CHECK-NEXT: - Offset:
65; CHECK-NEXT: Opcode: I32_CONST
66; CHECK-NEXT: Value: 1
67; CHECK-NEXT: Functions: [ 1 ]
68; CHECK-NEXT: - Type: CODE
69; CHECK-NEXT: Functions:
70; CHECK-NEXT: - Locals:
71; CHECK-NEXT: Body: 1081808080001A4100280280888080000B
72; CHECK-NEXT: - Locals:
73; CHECK-NEXT: Body: 41010B
74; CHECK-NEXT: - Locals:
75; CHECK-NEXT: Body: 4181808080000B
76; CHECK-NEXT: - Locals:
77; CHECK-NEXT: Body: 41020B
78; CHECK-NEXT: - Locals:
79; CHECK-NEXT: Body: 4181808080000B
80; CHECK-NEXT: - Type: DATA
81; CHECK-NEXT: Segments:
82; CHECK-NEXT: - SectionOffset: 7
83; CHECK-NEXT: MemoryIndex: 0
84; CHECK-NEXT: Offset:
85; CHECK-NEXT: Opcode: I32_CONST
86; CHECK-NEXT: Value: 1024
87; CHECK-NEXT: Content: '0100000002000000'
88; CHECK-NEXT: - Type: CUSTOM
89; CHECK-NEXT: Name: linking
90; CHECK-NEXT: DataSize: 8
91; CHECK-NEXT: - Type: CUSTOM
92; CHECK-NEXT: Name: name
93; CHECK-NEXT: FunctionNames:
94; CHECK-NEXT: - Index: 0
95; CHECK-NEXT: Name: _start
96; CHECK-NEXT: - Index: 2
97; CHECK-NEXT: Name: exportWeak1
98; CHECK-NEXT: - Index: 4
99; CHECK-NEXT: Name: exportWeak2
100; CHECK-NEXT: ...
deps/lld/tools/lld/CMakeLists.txt+5-2
...@@ -7,16 +7,19 @@ add_lld_tool(lld...@@ -7,16 +7,19 @@ add_lld_tool(lld
7 )7 )
88
9target_link_libraries(lld9target_link_libraries(lld
10 lldDriver10 PRIVATE
11 lldCOFF11 lldCOFF
12 lldDriver
12 lldELF13 lldELF
14 lldMinGW
15 lldWasm
13 )16 )
1417
15install(TARGETS lld18install(TARGETS lld
16 RUNTIME DESTINATION bin)19 RUNTIME DESTINATION bin)
1720
18if(NOT LLD_SYMLINKS_TO_CREATE)21if(NOT LLD_SYMLINKS_TO_CREATE)
19 set(LLD_SYMLINKS_TO_CREATE lld-link ld.lld)22 set(LLD_SYMLINKS_TO_CREATE lld-link ld.lld ld64.lld wasm-ld)
20endif()23endif()
2124
22foreach(link ${LLD_SYMLINKS_TO_CREATE})25foreach(link ${LLD_SYMLINKS_TO_CREATE})
deps/lld/tools/lld/lld.cpp+18-2
...@@ -16,7 +16,7 @@...@@ -16,7 +16,7 @@
16//16//
17//===----------------------------------------------------------------------===//17//===----------------------------------------------------------------------===//
1818
19#include "lld/Driver/Driver.h"19#include "lld/Common/Driver.h"
20#include "llvm/ADT/STLExtras.h"20#include "llvm/ADT/STLExtras.h"
21#include "llvm/ADT/StringSwitch.h"21#include "llvm/ADT/StringSwitch.h"
22#include "llvm/ADT/Twine.h"22#include "llvm/ADT/Twine.h"
...@@ -34,6 +34,7 @@ enum Flavor {...@@ -34,6 +34,7 @@ enum Flavor {
34 Gnu, // -flavor gnu34 Gnu, // -flavor gnu
35 WinLink, // -flavor link35 WinLink, // -flavor link
36 Darwin, // -flavor darwin36 Darwin, // -flavor darwin
37 Wasm, // -flavor wasm
37};38};
3839
39LLVM_ATTRIBUTE_NORETURN static void die(const Twine &S) {40LLVM_ATTRIBUTE_NORETURN static void die(const Twine &S) {
...@@ -44,11 +45,22 @@ LLVM_ATTRIBUTE_NORETURN static void die(const Twine &S) {...@@ -44,11 +45,22 @@ LLVM_ATTRIBUTE_NORETURN static void die(const Twine &S) {
44static Flavor getFlavor(StringRef S) {45static Flavor getFlavor(StringRef S) {
45 return StringSwitch<Flavor>(S)46 return StringSwitch<Flavor>(S)
46 .CasesLower("ld", "ld.lld", "gnu", Gnu)47 .CasesLower("ld", "ld.lld", "gnu", Gnu)
48 .CasesLower("wasm", "ld-wasm", Wasm)
47 .CaseLower("link", WinLink)49 .CaseLower("link", WinLink)
48 .CaseLower("darwin", Darwin)50 .CasesLower("ld64", "ld64.lld", "darwin", Darwin)
49 .Default(Invalid);51 .Default(Invalid);
50}52}
5153
54static bool isPETarget(const std::vector<const char *> &V) {
55 for (auto It = V.begin(); It + 1 != V.end(); ++It) {
56 if (StringRef(*It) != "-m")
57 continue;
58 StringRef S = *(It + 1);
59 return S == "i386pe" || S == "i386pep" || S == "thumb2pe" || S == "arm64pe";
60 }
61 return false;
62}
63
52static Flavor parseProgname(StringRef Progname) {64static Flavor parseProgname(StringRef Progname) {
53#if __APPLE__65#if __APPLE__
54 // Use Darwin driver for "ld" on Darwin.66 // Use Darwin driver for "ld" on Darwin.
...@@ -101,11 +113,15 @@ int main(int Argc, const char **Argv) {...@@ -101,11 +113,15 @@ int main(int Argc, const char **Argv) {
101 std::vector<const char *> Args(Argv, Argv + Argc);113 std::vector<const char *> Args(Argv, Argv + Argc);
102 switch (parseFlavor(Args)) {114 switch (parseFlavor(Args)) {
103 case Gnu:115 case Gnu:
116 if (isPETarget(Args))
117 return !mingw::link(Args);
104 return !elf::link(Args, true);118 return !elf::link(Args, true);
105 case WinLink:119 case WinLink:
106 return !coff::link(Args, true);120 return !coff::link(Args, true);
107 case Darwin:121 case Darwin:
108 return !mach_o::link(Args);122 return !mach_o::link(Args);
123 case Wasm:
124 return !wasm::link(Args, true);
109 default:125 default:
110 die("lld is a generic driver.\n"126 die("lld is a generic driver.\n"
111 "Invoke ld.lld (Unix), ld (macOS) or lld-link (Windows) instead.");127 "Invoke ld.lld (Unix), ld (macOS) or lld-link (Windows) instead.");
deps/lld/unittests/DriverTests/CMakeLists.txt+1
...@@ -3,6 +3,7 @@ add_lld_unittest(DriverTests...@@ -3,6 +3,7 @@ add_lld_unittest(DriverTests
3 )3 )
44
5target_link_libraries(DriverTests5target_link_libraries(DriverTests
6 PRIVATE
6 lldDriver7 lldDriver
7 lldMachO8 lldMachO
8 )9 )
deps/lld/unittests/DriverTests/DarwinLdDriverTest.cpp+1-1
...@@ -12,7 +12,7 @@...@@ -12,7 +12,7 @@
12///12///
13//===----------------------------------------------------------------------===//13//===----------------------------------------------------------------------===//
1414
15#include "lld/Driver/Driver.h"15#include "lld/Common/Driver.h"
16#include "lld/ReaderWriter/MachOLinkingContext.h"16#include "lld/ReaderWriter/MachOLinkingContext.h"
17#include "llvm/BinaryFormat/MachO.h"17#include "llvm/BinaryFormat/MachO.h"
18#include "llvm/Support/raw_ostream.h"18#include "llvm/Support/raw_ostream.h"
deps/lld/unittests/MachOTests/CMakeLists.txt+1
...@@ -7,6 +7,7 @@ add_lld_unittest(lldMachOTests...@@ -7,6 +7,7 @@ add_lld_unittest(lldMachOTests
7 )7 )
88
9target_link_libraries(lldMachOTests9target_link_libraries(lldMachOTests
10 PRIVATE
10 lldDriver11 lldDriver
11 lldMachO12 lldMachO
12 lldYAML13 lldYAML
deps/lld/utils/benchmark.py created+135
...@@ -0,0 +1,135 @@
1#!/usr/bin/env python
2#
3# The LLVM Compiler Infrastructure
4#
5# This file is distributed under the University of Illinois Open Source
6# License. See LICENSE.TXT for details.
7#
8# ==------------------------------------------------------------------------==#
9
10import os
11import glob
12import re
13import subprocess
14import json
15import datetime
16import argparse
17import urllib
18import urllib2
19
20parser = argparse.ArgumentParser()
21parser.add_argument('benchmark_directory')
22parser.add_argument('--runs', type=int, default=10)
23parser.add_argument('--wrapper', default='')
24parser.add_argument('--machine', required=True)
25parser.add_argument('--revision', required=True)
26parser.add_argument('--threads', action='store_true')
27parser.add_argument('--url', help='The lnt server url to send the results to',
28 default='http://localhost:8000/db_default/v4/link/submitRun')
29args = parser.parse_args()
30
31class Bench:
32 def __init__(self, directory, variant):
33 self.directory = directory
34 self.variant = variant
35 def __str__(self):
36 if not self.variant:
37 return self.directory
38 return '%s-%s' % (self.directory, self.variant)
39
40def getBenchmarks():
41 ret = []
42 for i in glob.glob('*/response*.txt'):
43 m = re.match('response-(.*)\.txt', os.path.basename(i))
44 variant = m.groups()[0] if m else None
45 ret.append(Bench(os.path.dirname(i), variant))
46 return ret
47
48def parsePerfNum(num):
49 num = num.replace(b',',b'')
50 try:
51 return int(num)
52 except ValueError:
53 return float(num)
54
55def parsePerfLine(line):
56 ret = {}
57 line = line.split(b'#')[0].strip()
58 if len(line) != 0:
59 p = line.split()
60 ret[p[1].strip().decode('ascii')] = parsePerfNum(p[0])
61 return ret
62
63def parsePerf(output):
64 ret = {}
65 lines = [x.strip() for x in output.split(b'\n')]
66
67 seconds = [x for x in lines if b'seconds time elapsed' in x][0]
68 seconds = seconds.strip().split()[0].strip()
69 ret['seconds-elapsed'] = parsePerfNum(seconds)
70
71 measurement_lines = [x for x in lines if b'#' in x]
72 for l in measurement_lines:
73 ret.update(parsePerfLine(l))
74 return ret
75
76def run(cmd):
77 try:
78 return subprocess.check_output(cmd, stderr=subprocess.STDOUT)
79 except subprocess.CalledProcessError as e:
80 print(e.output)
81 raise e
82
83def combinePerfRun(acc, d):
84 for k,v in d.items():
85 a = acc.get(k, [])
86 a.append(v)
87 acc[k] = a
88
89def perf(cmd):
90 # Discard the first run to warm up any system cache.
91 run(cmd)
92
93 ret = {}
94 wrapper_args = [x for x in args.wrapper.split(',') if x]
95 for i in range(args.runs):
96 os.unlink('t')
97 out = run(wrapper_args + ['perf', 'stat'] + cmd)
98 r = parsePerf(out)
99 combinePerfRun(ret, r)
100 os.unlink('t')
101 return ret
102
103def runBench(bench):
104 thread_arg = [] if args.threads else ['--no-threads']
105 os.chdir(bench.directory)
106 suffix = '-%s' % bench.variant if bench.variant else ''
107 response = 'response' + suffix + '.txt'
108 ret = perf(['../ld.lld', '@' + response, '-o', 't'] + thread_arg)
109 ret['name'] = str(bench)
110 os.chdir('..')
111 return ret
112
113def buildLntJson(benchmarks):
114 start = datetime.datetime.utcnow().isoformat()
115 tests = [runBench(b) for b in benchmarks]
116 end = datetime.datetime.utcnow().isoformat()
117 ret = {
118 'format_version' : 2,
119 'machine' : { 'name' : args.machine },
120 'run' : {
121 'end_time' : start,
122 'start_time' : end,
123 'llvm_project_revision': args.revision
124 },
125 'tests' : tests
126 }
127 return json.dumps(ret, sort_keys=True, indent=4)
128
129def submitToServer(data):
130 data2 = urllib.urlencode({ 'input_data' : data }).encode('ascii')
131 urllib2.urlopen(urllib2.Request(args.url, data2))
132
133os.chdir(args.benchmark_directory)
134data = buildLntJson(getBenchmarks())
135submitToServer(data)
deps/lld/utils/link.yaml created+39
...@@ -0,0 +1,39 @@
1format_version: '2'
2name: link
3run_fields:
4 - name: llvm_project_revision
5 order: true
6machine_fields:
7 - name: hardware
8 - name: os
9metrics:
10 - name: branch-misses
11 bigger_is_better: false
12 type: Real
13 - name: stalled-cycles-frontend
14 bigger_is_better: false
15 type: Real
16 - name: branches
17 bigger_is_better: false
18 type: Real
19 - name: context-switches
20 bigger_is_better: false
21 type: Real
22 - name: cpu-migrations
23 bigger_is_better: false
24 type: Real
25 - name: cycles
26 bigger_is_better: false
27 type: Real
28 - name: instructions
29 bigger_is_better: false
30 type: Real
31 - name: seconds-elapsed
32 bigger_is_better: false
33 type: Real
34 - name: page-faults
35 bigger_is_better: false
36 type: Real
37 - name: task-clock
38 bigger_is_better: false
39 type: Real
deps/lld/wasm/CMakeLists.txt created+26
...@@ -0,0 +1,26 @@
1set(LLVM_TARGET_DEFINITIONS Options.td)
2tablegen(LLVM Options.inc -gen-opt-parser-defs)
3add_public_tablegen_target(WasmOptionsTableGen)
4
5add_lld_library(lldWasm
6 Driver.cpp
7 InputFiles.cpp
8 InputSegment.cpp
9 OutputSections.cpp
10 SymbolTable.cpp
11 Symbols.cpp
12 Writer.cpp
13 WriterUtils.cpp
14
15 LINK_COMPONENTS
16 ${LLVM_TARGETS_TO_BUILD}
17 BinaryFormat
18 Core
19 Demangle
20 Object
21 Option
22 Support
23
24 LINK_LIBS
25 lldCommon
26 )
deps/lld/wasm/Config.h created+51
...@@ -0,0 +1,51 @@
1//===- Config.h -------------------------------------------------*- C++ -*-===//
2//
3// The LLVM Linker
4//
5// This file is distributed under the University of Illinois Open Source
6// License. See LICENSE.TXT for details.
7//
8//===----------------------------------------------------------------------===//
9
10#ifndef LLD_WASM_CONFIG_H
11#define LLD_WASM_CONFIG_H
12
13#include "llvm/ADT/StringRef.h"
14#include "llvm/ADT/StringSet.h"
15#include "llvm/BinaryFormat/Wasm.h"
16
17#include "Symbols.h"
18
19using llvm::wasm::WasmGlobal;
20
21namespace lld {
22namespace wasm {
23
24struct Configuration {
25 bool AllowUndefined;
26 bool CheckSignatures;
27 bool Demangle;
28 bool EmitRelocs;
29 bool ImportMemory;
30 bool Relocatable;
31 bool StripAll;
32 bool StripDebug;
33 uint32_t GlobalBase;
34 uint32_t InitialMemory;
35 uint32_t MaxMemory;
36 uint32_t ZStackSize;
37 llvm::StringRef Entry;
38 llvm::StringRef OutputFile;
39
40 llvm::StringSet<> AllowUndefinedSymbols;
41 std::vector<llvm::StringRef> SearchPaths;
42 Symbol *StackPointerSymbol = nullptr;
43};
44
45// The only instance of Configuration struct.
46extern Configuration *Config;
47
48} // namespace wasm
49} // namespace lld
50
51#endif
deps/lld/wasm/Driver.cpp created+321
...@@ -0,0 +1,321 @@
1//===- Driver.cpp ---------------------------------------------------------===//
2//
3// The LLVM Linker
4//
5// This file is distributed under the University of Illinois Open Source
6// License. See LICENSE.TXT for details.
7//
8//===----------------------------------------------------------------------===//
9
10#include "lld/Common/Driver.h"
11#include "Config.h"
12#include "SymbolTable.h"
13#include "Writer.h"
14#include "lld/Common/Args.h"
15#include "lld/Common/ErrorHandler.h"
16#include "lld/Common/Memory.h"
17#include "lld/Common/Threads.h"
18#include "lld/Common/Version.h"
19#include "llvm/ADT/Twine.h"
20#include "llvm/Object/Wasm.h"
21#include "llvm/Option/ArgList.h"
22#include "llvm/Support/CommandLine.h"
23#include "llvm/Support/Path.h"
24#include "llvm/Support/Process.h"
25
26using namespace llvm;
27using namespace llvm::sys;
28using namespace llvm::wasm;
29
30using namespace lld;
31using namespace lld::wasm;
32
33namespace {
34
35// Parses command line options.
36class WasmOptTable : public llvm::opt::OptTable {
37public:
38 WasmOptTable();
39 llvm::opt::InputArgList parse(ArrayRef<const char *> Argv);
40};
41
42// Create enum with OPT_xxx values for each option in Options.td
43enum {
44 OPT_INVALID = 0,
45#define OPTION(_1, _2, ID, _4, _5, _6, _7, _8, _9, _10, _11, _12) OPT_##ID,
46#include "Options.inc"
47#undef OPTION
48};
49
50class LinkerDriver {
51public:
52 void link(ArrayRef<const char *> ArgsArr);
53
54private:
55 void createFiles(llvm::opt::InputArgList &Args);
56 void addFile(StringRef Path);
57 void addLibrary(StringRef Name);
58 std::vector<InputFile *> Files;
59};
60
61} // anonymous namespace
62
63Configuration *lld::wasm::Config;
64
65bool lld::wasm::link(ArrayRef<const char *> Args, bool CanExitEarly,
66 raw_ostream &Error) {
67 errorHandler().LogName = Args[0];
68 errorHandler().ErrorOS = &Error;
69 errorHandler().ColorDiagnostics = Error.has_colors();
70 errorHandler().ErrorLimitExceededMsg =
71 "too many errors emitted, stopping now (use "
72 "-error-limit=0 to see all errors)";
73
74 Config = make<Configuration>();
75 Symtab = make<SymbolTable>();
76
77 LinkerDriver().link(Args);
78
79 // Exit immediately if we don't need to return to the caller.
80 // This saves time because the overhead of calling destructors
81 // for all globally-allocated objects is not negligible.
82 if (CanExitEarly)
83 exitLld(errorCount() ? 1 : 0);
84
85 freeArena();
86 return !errorCount();
87}
88
89// Create OptTable
90
91// Create prefix string literals used in Options.td
92#define PREFIX(NAME, VALUE) const char *const NAME[] = VALUE;
93#include "Options.inc"
94#undef PREFIX
95
96// Create table mapping all options defined in Options.td
97static const opt::OptTable::Info OptInfo[] = {
98#define OPTION(X1, X2, ID, KIND, GROUP, ALIAS, X7, X8, X9, X10, X11, X12) \
99 {X1, X2, X10, X11, OPT_##ID, opt::Option::KIND##Class, \
100 X9, X8, OPT_##GROUP, OPT_##ALIAS, X7, X12},
101#include "Options.inc"
102#undef OPTION
103};
104
105// Set color diagnostics according to -color-diagnostics={auto,always,never}
106// or -no-color-diagnostics flags.
107static void handleColorDiagnostics(opt::InputArgList &Args) {
108 auto *Arg = Args.getLastArg(OPT_color_diagnostics, OPT_color_diagnostics_eq,
109 OPT_no_color_diagnostics);
110 if (!Arg)
111 return;
112
113 if (Arg->getOption().getID() == OPT_color_diagnostics)
114 errorHandler().ColorDiagnostics = true;
115 else if (Arg->getOption().getID() == OPT_no_color_diagnostics)
116 errorHandler().ColorDiagnostics = false;
117 else {
118 StringRef S = Arg->getValue();
119 if (S == "always")
120 errorHandler().ColorDiagnostics = true;
121 if (S == "never")
122 errorHandler().ColorDiagnostics = false;
123 if (S != "auto")
124 error("unknown option: -color-diagnostics=" + S);
125 }
126}
127
128// Find a file by concatenating given paths.
129static Optional<std::string> findFile(StringRef Path1, const Twine &Path2) {
130 SmallString<128> S;
131 path::append(S, Path1, Path2);
132 if (fs::exists(S))
133 return S.str().str();
134 return None;
135}
136
137// Inject a new undefined symbol into the link. This will cause the link to
138// fail unless this symbol can be found.
139static void addSyntheticUndefinedFunction(StringRef Name,
140 const WasmSignature *Type) {
141 log("injecting undefined func: " + Name);
142 Symtab->addUndefinedFunction(Name, Type);
143}
144
145static void printHelp(const char *Argv0) {
146 WasmOptTable().PrintHelp(outs(), Argv0, "LLVM Linker", false);
147}
148
149WasmOptTable::WasmOptTable() : OptTable(OptInfo) {}
150
151opt::InputArgList WasmOptTable::parse(ArrayRef<const char *> Argv) {
152 SmallVector<const char *, 256> Vec(Argv.data(), Argv.data() + Argv.size());
153
154 unsigned MissingIndex;
155 unsigned MissingCount;
156 opt::InputArgList Args = this->ParseArgs(Vec, MissingIndex, MissingCount);
157
158 handleColorDiagnostics(Args);
159 for (auto *Arg : Args.filtered(OPT_UNKNOWN))
160 error("unknown argument: " + Arg->getSpelling());
161 return Args;
162}
163
164void LinkerDriver::addFile(StringRef Path) {
165 Optional<MemoryBufferRef> Buffer = readFile(Path);
166 if (!Buffer.hasValue())
167 return;
168 MemoryBufferRef MBRef = *Buffer;
169
170 if (identify_magic(MBRef.getBuffer()) == file_magic::archive)
171 Files.push_back(make<ArchiveFile>(MBRef));
172 else
173 Files.push_back(make<ObjFile>(MBRef));
174}
175
176// Add a given library by searching it from input search paths.
177void LinkerDriver::addLibrary(StringRef Name) {
178 for (StringRef Dir : Config->SearchPaths) {
179 if (Optional<std::string> S = findFile(Dir, "lib" + Name + ".a")) {
180 addFile(*S);
181 return;
182 }
183 }
184
185 error("unable to find library -l" + Name);
186}
187
188void LinkerDriver::createFiles(opt::InputArgList &Args) {
189 for (auto *Arg : Args) {
190 switch (Arg->getOption().getUnaliasedOption().getID()) {
191 case OPT_l:
192 addLibrary(Arg->getValue());
193 break;
194 case OPT_INPUT:
195 addFile(Arg->getValue());
196 break;
197 }
198 }
199
200 if (Files.empty())
201 error("no input files");
202}
203
204static StringRef getEntry(opt::InputArgList &Args, StringRef Default) {
205 auto *Arg = Args.getLastArg(OPT_entry, OPT_no_entry);
206 if (!Arg)
207 return Default;
208 if (Arg->getOption().getID() == OPT_no_entry)
209 return "";
210 return Arg->getValue();
211}
212
213void LinkerDriver::link(ArrayRef<const char *> ArgsArr) {
214 WasmOptTable Parser;
215 opt::InputArgList Args = Parser.parse(ArgsArr.slice(1));
216
217 // Handle --help
218 if (Args.hasArg(OPT_help)) {
219 printHelp(ArgsArr[0]);
220 return;
221 }
222
223 // Parse and evaluate -mllvm options.
224 std::vector<const char *> V;
225 V.push_back("wasm-ld (LLVM option parsing)");
226 for (auto *Arg : Args.filtered(OPT_mllvm))
227 V.push_back(Arg->getValue());
228 cl::ParseCommandLineOptions(V.size(), V.data());
229
230 errorHandler().ErrorLimit = args::getInteger(Args, OPT_error_limit, 20);
231
232 if (Args.hasArg(OPT_version) || Args.hasArg(OPT_v)) {
233 outs() << getLLDVersion() << "\n";
234 return;
235 }
236
237 Config->AllowUndefined = Args.hasArg(OPT_allow_undefined);
238 Config->CheckSignatures =
239 Args.hasFlag(OPT_check_signatures, OPT_no_check_signatures, false);
240 Config->EmitRelocs = Args.hasArg(OPT_emit_relocs);
241 Config->Entry = getEntry(Args, Args.hasArg(OPT_relocatable) ? "" : "_start");
242 Config->ImportMemory = Args.hasArg(OPT_import_memory);
243 Config->OutputFile = Args.getLastArgValue(OPT_o);
244 Config->Relocatable = Args.hasArg(OPT_relocatable);
245 Config->SearchPaths = args::getStrings(Args, OPT_L);
246 Config->StripAll = Args.hasArg(OPT_strip_all);
247 Config->StripDebug = Args.hasArg(OPT_strip_debug);
248 errorHandler().Verbose = Args.hasArg(OPT_verbose);
249 ThreadsEnabled = Args.hasFlag(OPT_threads, OPT_no_threads, true);
250 if (Config->Relocatable)
251 Config->EmitRelocs = true;
252
253 Config->InitialMemory = args::getInteger(Args, OPT_initial_memory, 0);
254 Config->GlobalBase = args::getInteger(Args, OPT_global_base, 1024);
255 Config->MaxMemory = args::getInteger(Args, OPT_max_memory, 0);
256 Config->ZStackSize =
257 args::getZOptionValue(Args, OPT_z, "stack-size", WasmPageSize);
258
259 if (auto *Arg = Args.getLastArg(OPT_allow_undefined_file))
260 if (Optional<MemoryBufferRef> Buf = readFile(Arg->getValue()))
261 for (StringRef Sym : args::getLines(*Buf))
262 Config->AllowUndefinedSymbols.insert(Sym);
263
264 if (Config->OutputFile.empty())
265 error("no output file specified");
266
267 if (!Args.hasArg(OPT_INPUT))
268 error("no input files");
269
270 if (Config->Relocatable && !Config->Entry.empty())
271 error("entry point specified for relocatable output file");
272 if (Config->Relocatable && Args.hasArg(OPT_undefined))
273 error("undefined symbols specified for relocatable output file");
274
275 if (!Config->Relocatable) {
276 if (!Config->Entry.empty()) {
277 static WasmSignature Signature = {{}, WASM_TYPE_NORESULT};
278 addSyntheticUndefinedFunction(Config->Entry, &Signature);
279 }
280
281 // Handle the `--undefined <sym>` options.
282 for (StringRef S : args::getStrings(Args, OPT_undefined))
283 addSyntheticUndefinedFunction(S, nullptr);
284
285 Config->StackPointerSymbol = Symtab->addDefinedGlobal("__stack_pointer");
286 }
287
288 createFiles(Args);
289 if (errorCount())
290 return;
291
292 // Add all files to the symbol table. This will add almost all
293 // symbols that we need to the symbol table.
294 for (InputFile *F : Files)
295 Symtab->addFile(F);
296
297 // Make sure we have resolved all symbols.
298 if (!Config->Relocatable && !Config->AllowUndefined) {
299 Symtab->reportRemainingUndefines();
300 } else {
301 // When we allow undefined symbols we cannot include those defined in
302 // -u/--undefined since these undefined symbols have only names and no
303 // function signature, which means they cannot be written to the final
304 // output.
305 for (StringRef S : args::getStrings(Args, OPT_undefined)) {
306 Symbol *Sym = Symtab->find(S);
307 if (!Sym->isDefined())
308 error("function forced with --undefined not found: " + Sym->getName());
309 }
310 }
311 if (errorCount())
312 return;
313
314 if (!Config->Entry.empty() && !Symtab->find(Config->Entry)->isDefined())
315 error("entry point not found: " + Config->Entry);
316 if (errorCount())
317 return;
318
319 // Write the result to the file.
320 writeResult();
321}
deps/lld/wasm/InputFiles.cpp created+312
...@@ -0,0 +1,312 @@
1//===- InputFiles.cpp -----------------------------------------------------===//
2//
3// The LLVM Linker
4//
5// This file is distributed under the University of Illinois Open Source
6// License. See LICENSE.TXT for details.
7//
8//===----------------------------------------------------------------------===//
9
10#include "InputFiles.h"
11
12#include "Config.h"
13#include "InputSegment.h"
14#include "SymbolTable.h"
15#include "lld/Common/ErrorHandler.h"
16#include "lld/Common/Memory.h"
17#include "llvm/Object/Binary.h"
18#include "llvm/Object/Wasm.h"
19#include "llvm/Support/raw_ostream.h"
20
21#define DEBUG_TYPE "lld"
22
23using namespace lld;
24using namespace lld::wasm;
25
26using namespace llvm;
27using namespace llvm::object;
28using namespace llvm::wasm;
29
30Optional<MemoryBufferRef> lld::wasm::readFile(StringRef Path) {
31 log("Loading: " + Path);
32
33 auto MBOrErr = MemoryBuffer::getFile(Path);
34 if (auto EC = MBOrErr.getError()) {
35 error("cannot open " + Path + ": " + EC.message());
36 return None;
37 }
38 std::unique_ptr<MemoryBuffer> &MB = *MBOrErr;
39 MemoryBufferRef MBRef = MB->getMemBufferRef();
40 make<std::unique_ptr<MemoryBuffer>>(std::move(MB)); // take MB ownership
41
42 return MBRef;
43}
44
45void ObjFile::dumpInfo() const {
46 log("reloc info for: " + getName() + "\n" +
47 " FunctionIndexOffset : " + Twine(FunctionIndexOffset) + "\n" +
48 " NumFunctionImports : " + Twine(NumFunctionImports()) + "\n" +
49 " NumGlobalImports : " + Twine(NumGlobalImports()) + "\n");
50}
51
52bool ObjFile::isImportedFunction(uint32_t Index) const {
53 return Index < NumFunctionImports();
54}
55
56Symbol *ObjFile::getFunctionSymbol(uint32_t Index) const {
57 return FunctionSymbols[Index];
58}
59
60Symbol *ObjFile::getTableSymbol(uint32_t Index) const {
61 return TableSymbols[Index];
62}
63
64Symbol *ObjFile::getGlobalSymbol(uint32_t Index) const {
65 return GlobalSymbols[Index];
66}
67
68uint32_t ObjFile::getRelocatedAddress(uint32_t Index) const {
69 return getGlobalSymbol(Index)->getVirtualAddress();
70}
71
72uint32_t ObjFile::relocateFunctionIndex(uint32_t Original) const {
73 Symbol *Sym = getFunctionSymbol(Original);
74 uint32_t Index = Sym->getOutputIndex();
75 DEBUG(dbgs() << "relocateFunctionIndex: " << toString(*Sym) << ": "
76 << Original << " -> " << Index << "\n");
77 return Index;
78}
79
80uint32_t ObjFile::relocateTypeIndex(uint32_t Original) const {
81 return TypeMap[Original];
82}
83
84uint32_t ObjFile::relocateTableIndex(uint32_t Original) const {
85 Symbol *Sym = getTableSymbol(Original);
86 uint32_t Index = Sym->getTableIndex();
87 DEBUG(dbgs() << "relocateTableIndex: " << toString(*Sym) << ": " << Original
88 << " -> " << Index << "\n");
89 return Index;
90}
91
92uint32_t ObjFile::relocateGlobalIndex(uint32_t Original) const {
93 Symbol *Sym = getGlobalSymbol(Original);
94 uint32_t Index = Sym->getOutputIndex();
95 DEBUG(dbgs() << "relocateGlobalIndex: " << toString(*Sym) << ": " << Original
96 << " -> " << Index << "\n");
97 return Index;
98}
99
100void ObjFile::parse() {
101 // Parse a memory buffer as a wasm file.
102 DEBUG(dbgs() << "Parsing object: " << toString(this) << "\n");
103 std::unique_ptr<Binary> Bin = CHECK(createBinary(MB), toString(this));
104
105 auto *Obj = dyn_cast<WasmObjectFile>(Bin.get());
106 if (!Obj)
107 fatal(toString(this) + ": not a wasm file");
108 if (!Obj->isRelocatableObject())
109 fatal(toString(this) + ": not a relocatable wasm file");
110
111 Bin.release();
112 WasmObj.reset(Obj);
113
114 // Find the code and data sections. Wasm objects can have at most one code
115 // and one data section.
116 for (const SectionRef &Sec : WasmObj->sections()) {
117 const WasmSection &Section = WasmObj->getWasmSection(Sec);
118 if (Section.Type == WASM_SEC_CODE)
119 CodeSection = &Section;
120 else if (Section.Type == WASM_SEC_DATA)
121 DataSection = &Section;
122 }
123
124 initializeSymbols();
125}
126
127// Return the InputSegment in which a given symbol is defined.
128InputSegment *ObjFile::getSegment(const WasmSymbol &WasmSym) {
129 uint32_t Address = WasmObj->getWasmSymbolValue(WasmSym);
130 for (InputSegment *Segment : Segments) {
131 if (Address >= Segment->startVA() && Address < Segment->endVA()) {
132 DEBUG(dbgs() << "Found symbol in segment: " << WasmSym.Name << " -> "
133 << Segment->getName() << "\n");
134
135 return Segment;
136 }
137 }
138 error("symbol not found in any segment: " + WasmSym.Name);
139 return nullptr;
140}
141
142static void copyRelocationsRange(std::vector<WasmRelocation> &To,
143 ArrayRef<WasmRelocation> From, size_t Start,
144 size_t End) {
145 for (const WasmRelocation &R : From)
146 if (R.Offset >= Start && R.Offset < End)
147 To.push_back(R);
148}
149
150void ObjFile::initializeSymbols() {
151 Symbols.reserve(WasmObj->getNumberOfSymbols());
152
153 for (const WasmImport &Import : WasmObj->imports()) {
154 switch (Import.Kind) {
155 case WASM_EXTERNAL_FUNCTION:
156 ++FunctionImports;
157 break;
158 case WASM_EXTERNAL_GLOBAL:
159 ++GlobalImports;
160 break;
161 }
162 }
163
164 FunctionSymbols.resize(FunctionImports + WasmObj->functions().size());
165 GlobalSymbols.resize(GlobalImports + WasmObj->globals().size());
166
167 for (const WasmSegment &S : WasmObj->dataSegments()) {
168 InputSegment *Seg = make<InputSegment>(&S, this);
169 copyRelocationsRange(Seg->Relocations, DataSection->Relocations,
170 Seg->getInputSectionOffset(),
171 Seg->getInputSectionOffset() + Seg->getSize());
172 Segments.emplace_back(Seg);
173 }
174
175 // Populate `FunctionSymbols` and `GlobalSymbols` based on the WasmSymbols
176 // in the object
177 for (const SymbolRef &Sym : WasmObj->symbols()) {
178 const WasmSymbol &WasmSym = WasmObj->getWasmSymbol(Sym.getRawDataRefImpl());
179 Symbol *S;
180 switch (WasmSym.Type) {
181 case WasmSymbol::SymbolType::FUNCTION_IMPORT:
182 case WasmSymbol::SymbolType::GLOBAL_IMPORT:
183 S = createUndefined(WasmSym);
184 break;
185 case WasmSymbol::SymbolType::GLOBAL_EXPORT:
186 S = createDefined(WasmSym, getSegment(WasmSym));
187 break;
188 case WasmSymbol::SymbolType::FUNCTION_EXPORT:
189 S = createDefined(WasmSym);
190 break;
191 case WasmSymbol::SymbolType::DEBUG_FUNCTION_NAME:
192 // These are for debugging only, no need to create linker symbols for them
193 continue;
194 }
195
196 Symbols.push_back(S);
197 if (WasmSym.isFunction()) {
198 DEBUG(dbgs() << "Function: " << WasmSym.ElementIndex << " -> "
199 << toString(*S) << "\n");
200 FunctionSymbols[WasmSym.ElementIndex] = S;
201 if (WasmSym.HasAltIndex)
202 FunctionSymbols[WasmSym.AltIndex] = S;
203 } else {
204 DEBUG(dbgs() << "Global: " << WasmSym.ElementIndex << " -> "
205 << toString(*S) << "\n");
206 GlobalSymbols[WasmSym.ElementIndex] = S;
207 if (WasmSym.HasAltIndex)
208 GlobalSymbols[WasmSym.AltIndex] = S;
209 }
210 }
211
212 DEBUG(for (size_t I = 0; I < FunctionSymbols.size(); ++I)
213 assert(FunctionSymbols[I] != nullptr);
214 for (size_t I = 0; I < GlobalSymbols.size(); ++I)
215 assert(GlobalSymbols[I] != nullptr););
216
217 // Populate `TableSymbols` with all symbols that are called indirectly
218 uint32_t SegmentCount = WasmObj->elements().size();
219 if (SegmentCount) {
220 if (SegmentCount > 1)
221 fatal(getName() + ": contains more than one element segment");
222 const WasmElemSegment &Segment = WasmObj->elements()[0];
223 if (Segment.Offset.Opcode != WASM_OPCODE_I32_CONST)
224 fatal(getName() + ": unsupported element segment");
225 if (Segment.TableIndex != 0)
226 fatal(getName() + ": unsupported table index in elem segment");
227 if (Segment.Offset.Value.Int32 != 0)
228 fatal(getName() + ": unsupported element segment offset");
229 TableSymbols.reserve(Segment.Functions.size());
230 for (uint64_t FunctionIndex : Segment.Functions)
231 TableSymbols.push_back(getFunctionSymbol(FunctionIndex));
232 }
233
234 DEBUG(dbgs() << "TableSymbols: " << TableSymbols.size() << "\n");
235 DEBUG(dbgs() << "Functions : " << FunctionSymbols.size() << "\n");
236 DEBUG(dbgs() << "Globals : " << GlobalSymbols.size() << "\n");
237}
238
239Symbol *ObjFile::createUndefined(const WasmSymbol &Sym) {
240 return Symtab->addUndefined(this, &Sym);
241}
242
243Symbol *ObjFile::createDefined(const WasmSymbol &Sym,
244 const InputSegment *Segment) {
245 Symbol *S;
246 if (Sym.isLocal()) {
247 S = make<Symbol>(Sym.Name, true);
248 Symbol::Kind Kind;
249 if (Sym.Type == WasmSymbol::SymbolType::FUNCTION_EXPORT)
250 Kind = Symbol::Kind::DefinedFunctionKind;
251 else if (Sym.Type == WasmSymbol::SymbolType::GLOBAL_EXPORT)
252 Kind = Symbol::Kind::DefinedGlobalKind;
253 else
254 llvm_unreachable("invalid local symbol type");
255 S->update(Kind, this, &Sym, Segment);
256 return S;
257 }
258 return Symtab->addDefined(this, &Sym, Segment);
259}
260
261void ArchiveFile::parse() {
262 // Parse a MemoryBufferRef as an archive file.
263 DEBUG(dbgs() << "Parsing library: " << toString(this) << "\n");
264 File = CHECK(Archive::create(MB), toString(this));
265
266 // Read the symbol table to construct Lazy symbols.
267 int Count = 0;
268 for (const Archive::Symbol &Sym : File->symbols()) {
269 Symtab->addLazy(this, &Sym);
270 ++Count;
271 }
272 DEBUG(dbgs() << "Read " << Count << " symbols\n");
273}
274
275void ArchiveFile::addMember(const Archive::Symbol *Sym) {
276 const Archive::Child &C =
277 CHECK(Sym->getMember(),
278 "could not get the member for symbol " + Sym->getName());
279
280 // Don't try to load the same member twice (this can happen when members
281 // mutually reference each other).
282 if (!Seen.insert(C.getChildOffset()).second)
283 return;
284
285 DEBUG(dbgs() << "loading lazy: " << Sym->getName() << "\n");
286 DEBUG(dbgs() << "from archive: " << toString(this) << "\n");
287
288 MemoryBufferRef MB =
289 CHECK(C.getMemoryBufferRef(),
290 "could not get the buffer for the member defining symbol " +
291 Sym->getName());
292
293 if (identify_magic(MB.getBuffer()) != file_magic::wasm_object) {
294 error("unknown file type: " + MB.getBufferIdentifier());
295 return;
296 }
297
298 InputFile *Obj = make<ObjFile>(MB);
299 Obj->ParentName = ParentName;
300 Symtab->addFile(Obj);
301}
302
303// Returns a string in the format of "foo.o" or "foo.a(bar.o)".
304std::string lld::toString(const wasm::InputFile *File) {
305 if (!File)
306 return "<internal>";
307
308 if (File->ParentName.empty())
309 return File->getName();
310
311 return (File->ParentName + "(" + File->getName() + ")").str();
312}
deps/lld/wasm/InputFiles.h created+153
...@@ -0,0 +1,153 @@
1//===- InputFiles.h ---------------------------------------------*- C++ -*-===//
2//
3// The LLVM Linker
4//
5// This file is distributed under the University of Illinois Open Source
6// License. See LICENSE.TXT for details.
7//
8//===----------------------------------------------------------------------===//
9
10#ifndef LLD_WASM_INPUT_FILES_H
11#define LLD_WASM_INPUT_FILES_H
12
13#include "lld/Common/LLVM.h"
14#include "llvm/ADT/DenseMap.h"
15#include "llvm/ADT/DenseSet.h"
16#include "llvm/Object/Archive.h"
17#include "llvm/Object/Wasm.h"
18#include "llvm/Support/MemoryBuffer.h"
19
20#include "WriterUtils.h"
21
22#include <vector>
23
24using llvm::object::Archive;
25using llvm::object::WasmObjectFile;
26using llvm::object::WasmSection;
27using llvm::object::WasmSymbol;
28using llvm::wasm::WasmImport;
29
30namespace lld {
31namespace wasm {
32
33class Symbol;
34class InputSegment;
35
36class InputFile {
37public:
38 enum Kind {
39 ObjectKind,
40 ArchiveKind,
41 };
42
43 virtual ~InputFile() {}
44
45 // Returns the filename.
46 StringRef getName() const { return MB.getBufferIdentifier(); }
47
48 // Reads a file (the constructor doesn't do that).
49 virtual void parse() = 0;
50
51 Kind kind() const { return FileKind; }
52
53 // An archive file name if this file is created from an archive.
54 StringRef ParentName;
55
56protected:
57 InputFile(Kind K, MemoryBufferRef M) : MB(M), FileKind(K) {}
58 MemoryBufferRef MB;
59
60private:
61 const Kind FileKind;
62};
63
64// .a file (ar archive)
65class ArchiveFile : public InputFile {
66public:
67 explicit ArchiveFile(MemoryBufferRef M) : InputFile(ArchiveKind, M) {}
68 static bool classof(const InputFile *F) { return F->kind() == ArchiveKind; }
69
70 void addMember(const Archive::Symbol *Sym);
71
72 void parse() override;
73
74private:
75 std::unique_ptr<Archive> File;
76 llvm::DenseSet<uint64_t> Seen;
77};
78
79// .o file (wasm object file)
80class ObjFile : public InputFile {
81public:
82 explicit ObjFile(MemoryBufferRef M) : InputFile(ObjectKind, M) {}
83 static bool classof(const InputFile *F) { return F->kind() == ObjectKind; }
84
85 void parse() override;
86
87 // Returns the underlying wasm file.
88 const WasmObjectFile *getWasmObj() const { return WasmObj.get(); }
89
90 void dumpInfo() const;
91
92 uint32_t relocateTypeIndex(uint32_t Original) const;
93 uint32_t relocateFunctionIndex(uint32_t Original) const;
94 uint32_t relocateGlobalIndex(uint32_t Original) const;
95 uint32_t relocateTableIndex(uint32_t Original) const;
96 uint32_t getRelocatedAddress(uint32_t Index) const;
97
98 // Returns true if the given function index is an imported function,
99 // as opposed to the locally defined function.
100 bool isImportedFunction(uint32_t Index) const;
101
102 size_t NumFunctionImports() const { return FunctionImports; }
103 size_t NumGlobalImports() const { return GlobalImports; }
104
105 int32_t FunctionIndexOffset = 0;
106 const WasmSection *CodeSection = nullptr;
107 std::vector<OutputRelocation> CodeRelocations;
108 int32_t CodeOffset = 0;
109 const WasmSection *DataSection = nullptr;
110
111 std::vector<uint32_t> TypeMap;
112 std::vector<InputSegment *> Segments;
113
114 ArrayRef<Symbol *> getSymbols() { return Symbols; }
115 ArrayRef<Symbol *> getTableSymbols() { return TableSymbols; }
116
117private:
118 Symbol *createDefined(const WasmSymbol &Sym,
119 const InputSegment *Segment = nullptr);
120 Symbol *createUndefined(const WasmSymbol &Sym);
121 void initializeSymbols();
122 InputSegment *getSegment(const WasmSymbol &WasmSym);
123 Symbol *getFunctionSymbol(uint32_t FunctionIndex) const;
124 Symbol *getTableSymbol(uint32_t TableIndex) const;
125 Symbol *getGlobalSymbol(uint32_t GlobalIndex) const;
126
127 // List of all symbols referenced or defined by this file.
128 std::vector<Symbol *> Symbols;
129
130 // List of all function symbols indexed by the function index space
131 std::vector<Symbol *> FunctionSymbols;
132
133 // List of all global symbols indexed by the global index space
134 std::vector<Symbol *> GlobalSymbols;
135
136 // List of all indirect symbols indexed by table index space.
137 std::vector<Symbol *> TableSymbols;
138
139 uint32_t GlobalImports = 0;
140 uint32_t FunctionImports = 0;
141 std::unique_ptr<WasmObjectFile> WasmObj;
142};
143
144// Opens a given file.
145llvm::Optional<MemoryBufferRef> readFile(StringRef Path);
146
147} // namespace wasm
148
149std::string toString(const wasm::InputFile *File);
150
151} // namespace lld
152
153#endif
deps/lld/wasm/InputSegment.cpp created+25
...@@ -0,0 +1,25 @@
1//===- InputSegment.cpp ---------------------------------------------------===//
2//
3// The LLVM Linker
4//
5// This file is distributed under the University of Illinois Open Source
6// License. See LICENSE.TXT for details.
7//
8//===----------------------------------------------------------------------===//
9
10#include "InputSegment.h"
11#include "OutputSegment.h"
12#include "lld/Common/LLVM.h"
13
14#define DEBUG_TYPE "lld"
15
16using namespace llvm;
17using namespace lld::wasm;
18
19uint32_t InputSegment::translateVA(uint32_t Address) const {
20 assert(Address >= startVA() && Address < endVA());
21 int32_t Delta = OutputSeg->StartVA + OutputSegmentOffset - startVA();
22 DEBUG(dbgs() << "translateVA: " << getName() << " Delta=" << Delta
23 << " Address=" << Address << "\n");
24 return Address + Delta;
25}
deps/lld/wasm/InputSegment.h created+76
...@@ -0,0 +1,76 @@
1//===- InputSegment.h -------------------------------------------*- C++ -*-===//
2//
3// The LLVM Linker
4//
5// This file is distributed under the University of Illinois Open Source
6// License. See LICENSE.TXT for details.
7//
8//===----------------------------------------------------------------------===//
9//
10// Represents a WebAssembly data segment which can be included as part of
11// an output data segments. Note that in WebAssembly, unlike ELF and other
12// formats, used the term "data segment" to refer to the continous regions of
13// memory that make on the data section. See:
14// https://webassembly.github.io/spec/syntax/modules.html#syntax-data
15//
16// For example, by default, clang will produce a separate data section for
17// each global variable.
18//
19//===----------------------------------------------------------------------===//
20
21#ifndef LLD_WASM_INPUT_SEGMENT_H
22#define LLD_WASM_INPUT_SEGMENT_H
23
24#include "WriterUtils.h"
25#include "lld/Common/ErrorHandler.h"
26#include "llvm/Object/Wasm.h"
27
28using llvm::object::WasmSegment;
29using llvm::wasm::WasmRelocation;
30
31namespace lld {
32namespace wasm {
33
34class ObjFile;
35class OutputSegment;
36
37class InputSegment {
38public:
39 InputSegment(const WasmSegment *Seg, const ObjFile *F)
40 : Segment(Seg), File(F) {}
41
42 // Translate an offset in the input segment to an offset in the output
43 // segment.
44 uint32_t translateVA(uint32_t Address) const;
45
46 const OutputSegment *getOutputSegment() const { return OutputSeg; }
47
48 uint32_t getOutputSegmentOffset() const { return OutputSegmentOffset; }
49
50 uint32_t getInputSectionOffset() const { return Segment->SectionOffset; }
51
52 void setOutputSegment(const OutputSegment *Segment, uint32_t Offset) {
53 OutputSeg = Segment;
54 OutputSegmentOffset = Offset;
55 }
56
57 uint32_t getSize() const { return Segment->Data.Content.size(); }
58 uint32_t getAlignment() const { return Segment->Data.Alignment; }
59 uint32_t startVA() const { return Segment->Data.Offset.Value.Int32; }
60 uint32_t endVA() const { return startVA() + getSize(); }
61 StringRef getName() const { return Segment->Data.Name; }
62
63 const WasmSegment *Segment;
64 const ObjFile *File;
65 std::vector<WasmRelocation> Relocations;
66 std::vector<OutputRelocation> OutRelocations;
67
68protected:
69 const OutputSegment *OutputSeg = nullptr;
70 uint32_t OutputSegmentOffset = 0;
71};
72
73} // namespace wasm
74} // namespace lld
75
76#endif // LLD_WASM_INPUT_SEGMENT_H
deps/lld/wasm/Options.td created+103
...@@ -0,0 +1,103 @@
1include "llvm/Option/OptParser.td"
2
3// For options whose names are multiple letters, either one dash or
4// two can precede the option name except those that start with 'o'.
5class F<string name>: Flag<["--", "-"], name>;
6class J<string name>: Joined<["--", "-"], name>;
7class S<string name>: Separate<["--", "-"], name>;
8
9multiclass Eq<string name> {
10 def "": Separate<["--", "-"], name>;
11 def _eq: Joined<["--", "-"], name # "=">, Alias<!cast<Separate>(NAME)>;
12}
13
14def L: JoinedOrSeparate<["-"], "L">, MetaVarName<"<dir>">,
15 HelpText<"Add a directory to the library search path">;
16
17def color_diagnostics: F<"color-diagnostics">,
18 HelpText<"Use colors in diagnostics">;
19
20def color_diagnostics_eq: J<"color-diagnostics=">,
21 HelpText<"Use colors in diagnostics">;
22
23// The follow flags are shared with the ELF linker
24def help: F<"help">, HelpText<"Print option help">;
25
26def l: JoinedOrSeparate<["-"], "l">, MetaVarName<"<libName>">,
27 HelpText<"Root name of library to use">;
28
29def mllvm: S<"mllvm">, HelpText<"Options to pass to LLVM">;
30
31def no_threads: F<"no-threads">,
32 HelpText<"Do not run the linker multi-threaded">;
33
34def no_color_diagnostics: F<"no-color-diagnostics">,
35 HelpText<"Do not use colors in diagnostics">;
36
37def no_check_signatures: F<"no-check-signatures">, HelpText<"Don't check function signatures">;
38
39def o: JoinedOrSeparate<["-"], "o">, MetaVarName<"<path>">,
40 HelpText<"Path to file to write output">;
41
42def threads: F<"threads">, HelpText<"Run the linker multi-threaded">;
43
44def check_signatures: F<"check-signatures">, HelpText<"Check function signatures">;
45
46def v: Flag<["-"], "v">, HelpText<"Display the version number">;
47
48def version: F<"version">, HelpText<"Display the version number and exit">;
49
50def verbose: F<"verbose">, HelpText<"Verbose mode">;
51
52def relocatable: F<"relocatable">, HelpText<"Create relocatable object file">;
53
54def emit_relocs: F<"emit-relocs">, HelpText<"Generate relocations in output">;
55
56def strip_all: F<"strip-all">, HelpText<"Strip all symbols">;
57
58def strip_debug: F<"strip-debug">, HelpText<"Strip debugging information">;
59
60defm undefined: Eq<"undefined">,
61 HelpText<"Force undefined symbol during linking">;
62
63def z: JoinedOrSeparate<["-"], "z">, MetaVarName<"<option>">,
64 HelpText<"Linker option extensions">;
65
66def entry: S<"entry">, MetaVarName<"<entry>">,
67 HelpText<"Name of entry point symbol">;
68
69def no_entry: F<"no-entry">,
70 HelpText<"Do not output any entry point">;
71
72def error_limit: J<"error-limit=">,
73 HelpText<"Maximum number of errors to emit before stopping (0 = no limit)">;
74
75// The follow flags are unique to wasm
76
77def global_base: J<"global-base=">,
78 HelpText<"Where to start to place global data">;
79
80def initial_memory: J<"initial-memory=">,
81 HelpText<"Initial size of the linear memory">;
82
83def max_memory: J<"max-memory=">,
84 HelpText<"Maximum size of the linear memory">;
85
86def import_memory: F<"import-memory">,
87 HelpText<"Import memory from the environment">;
88
89def allow_undefined: F<"allow-undefined">,
90 HelpText<"Allow undefined symbols in linked binary">;
91
92def allow_undefined_file: J<"allow-undefined-file=">,
93 HelpText<"Allow symbols listed in <file> to be undefined in linked binary">;
94
95def allow_undefined_file_s: Separate<["-"], "allow-undefined-file">, Alias<allow_undefined_file>;
96
97// Aliases
98def alias_initial_memory_i: Flag<["-"], "i">, Alias<initial_memory>;
99def alias_max_memory_m: Flag<["-"], "m">, Alias<max_memory>;
100def alias_relocatable_r: Flag<["-"], "r">, Alias<relocatable>;
101def alias_entry_e: JoinedOrSeparate<["-"], "e">, Alias<entry>;
102def alias_entry_entry: J<"entry=">, Alias<entry>;
103def alias_undefined_u: JoinedOrSeparate<["-"], "u">, Alias<undefined>;
deps/lld/wasm/OutputSections.cpp created+348
...@@ -0,0 +1,348 @@
1//===- OutputSections.cpp -------------------------------------------------===//
2//
3// The LLVM Linker
4//
5// This file is distributed under the University of Illinois Open Source
6// License. See LICENSE.TXT for details.
7//
8//===----------------------------------------------------------------------===//
9
10#include "OutputSections.h"
11
12#include "Config.h"
13#include "InputFiles.h"
14#include "OutputSegment.h"
15#include "SymbolTable.h"
16#include "lld/Common/ErrorHandler.h"
17#include "lld/Common/Memory.h"
18#include "lld/Common/Threads.h"
19#include "llvm/ADT/Twine.h"
20#include "llvm/Support/LEB128.h"
21
22#define DEBUG_TYPE "lld"
23
24using namespace llvm;
25using namespace llvm::wasm;
26using namespace lld;
27using namespace lld::wasm;
28
29enum class RelocEncoding {
30 Uleb128,
31 Sleb128,
32 I32,
33};
34
35static StringRef sectionTypeToString(uint32_t SectionType) {
36 switch (SectionType) {
37 case WASM_SEC_CUSTOM:
38 return "CUSTOM";
39 case WASM_SEC_TYPE:
40 return "TYPE";
41 case WASM_SEC_IMPORT:
42 return "IMPORT";
43 case WASM_SEC_FUNCTION:
44 return "FUNCTION";
45 case WASM_SEC_TABLE:
46 return "TABLE";
47 case WASM_SEC_MEMORY:
48 return "MEMORY";
49 case WASM_SEC_GLOBAL:
50 return "GLOBAL";
51 case WASM_SEC_EXPORT:
52 return "EXPORT";
53 case WASM_SEC_START:
54 return "START";
55 case WASM_SEC_ELEM:
56 return "ELEM";
57 case WASM_SEC_CODE:
58 return "CODE";
59 case WASM_SEC_DATA:
60 return "DATA";
61 default:
62 fatal("invalid section type");
63 }
64}
65
66std::string lld::toString(const OutputSection &Section) {
67 std::string rtn = Section.getSectionName();
68 if (!Section.Name.empty())
69 rtn += "(" + Section.Name + ")";
70 return rtn;
71}
72
73static void applyRelocation(uint8_t *Buf, const OutputRelocation &Reloc) {
74 DEBUG(dbgs() << "write reloc: type=" << Reloc.Reloc.Type
75 << " index=" << Reloc.Reloc.Index << " value=" << Reloc.Value
76 << " offset=" << Reloc.Reloc.Offset << "\n");
77 Buf += Reloc.Reloc.Offset;
78 int64_t ExistingValue;
79 switch (Reloc.Reloc.Type) {
80 case R_WEBASSEMBLY_TYPE_INDEX_LEB:
81 case R_WEBASSEMBLY_FUNCTION_INDEX_LEB:
82 ExistingValue = decodeULEB128(Buf);
83 if (ExistingValue != Reloc.Reloc.Index) {
84 DEBUG(dbgs() << "existing value: " << decodeULEB128(Buf) << "\n");
85 assert(decodeULEB128(Buf) == Reloc.Reloc.Index);
86 }
87 LLVM_FALLTHROUGH;
88 case R_WEBASSEMBLY_MEMORY_ADDR_LEB:
89 case R_WEBASSEMBLY_GLOBAL_INDEX_LEB:
90 encodeULEB128(Reloc.Value, Buf, 5);
91 break;
92 case R_WEBASSEMBLY_TABLE_INDEX_SLEB:
93 ExistingValue = decodeSLEB128(Buf);
94 if (ExistingValue != Reloc.Reloc.Index) {
95 DEBUG(dbgs() << "existing value: " << decodeSLEB128(Buf) << "\n");
96 assert(decodeSLEB128(Buf) == Reloc.Reloc.Index);
97 }
98 LLVM_FALLTHROUGH;
99 case R_WEBASSEMBLY_MEMORY_ADDR_SLEB:
100 encodeSLEB128(static_cast<int32_t>(Reloc.Value), Buf, 5);
101 break;
102 case R_WEBASSEMBLY_TABLE_INDEX_I32:
103 case R_WEBASSEMBLY_MEMORY_ADDR_I32:
104 support::endian::write32<support::little>(Buf, Reloc.Value);
105 break;
106 default:
107 llvm_unreachable("unknown relocation type");
108 }
109}
110
111static void applyRelocations(uint8_t *Buf, ArrayRef<OutputRelocation> Relocs) {
112 if (!Relocs.size())
113 return;
114 log("applyRelocations: count=" + Twine(Relocs.size()));
115 for (const OutputRelocation &Reloc : Relocs)
116 applyRelocation(Buf, Reloc);
117}
118
119// Relocations contain an index into the function, global or table index
120// space of the input file. This function takes a relocation and returns the
121// relocated index (i.e. translates from the input index space to the output
122// index space).
123static uint32_t calcNewIndex(const ObjFile &File, const WasmRelocation &Reloc) {
124 switch (Reloc.Type) {
125 case R_WEBASSEMBLY_TYPE_INDEX_LEB:
126 return File.relocateTypeIndex(Reloc.Index);
127 case R_WEBASSEMBLY_FUNCTION_INDEX_LEB:
128 return File.relocateFunctionIndex(Reloc.Index);
129 case R_WEBASSEMBLY_TABLE_INDEX_I32:
130 case R_WEBASSEMBLY_TABLE_INDEX_SLEB:
131 return File.relocateTableIndex(Reloc.Index);
132 case R_WEBASSEMBLY_GLOBAL_INDEX_LEB:
133 case R_WEBASSEMBLY_MEMORY_ADDR_LEB:
134 case R_WEBASSEMBLY_MEMORY_ADDR_SLEB:
135 case R_WEBASSEMBLY_MEMORY_ADDR_I32:
136 return File.relocateGlobalIndex(Reloc.Index);
137 default:
138 llvm_unreachable("unknown relocation type");
139 }
140}
141
142// Take a vector of relocations from an input file and create output
143// relocations based on them. Calculates the updated index and offset for
144// each relocation as well as the value to write out in the final binary.
145static void calcRelocations(const ObjFile &File,
146 ArrayRef<WasmRelocation> Relocs,
147 std::vector<OutputRelocation> &OutputRelocs,
148 int32_t OutputOffset) {
149 log("calcRelocations: " + File.getName() + " offset=" + Twine(OutputOffset));
150 for (const WasmRelocation &Reloc : Relocs) {
151 OutputRelocation NewReloc;
152 NewReloc.Reloc = Reloc;
153 NewReloc.Reloc.Offset += OutputOffset;
154 DEBUG(dbgs() << "reloc: type=" << Reloc.Type << " index=" << Reloc.Index
155 << " offset=" << Reloc.Offset
156 << " newOffset=" << NewReloc.Reloc.Offset << "\n");
157
158 if (Config->EmitRelocs)
159 NewReloc.NewIndex = calcNewIndex(File, Reloc);
160 else
161 NewReloc.NewIndex = UINT32_MAX;
162
163 switch (Reloc.Type) {
164 case R_WEBASSEMBLY_MEMORY_ADDR_SLEB:
165 case R_WEBASSEMBLY_MEMORY_ADDR_I32:
166 case R_WEBASSEMBLY_MEMORY_ADDR_LEB:
167 NewReloc.Value = File.getRelocatedAddress(Reloc.Index);
168 if (NewReloc.Value != UINT32_MAX)
169 NewReloc.Value += Reloc.Addend;
170 break;
171 default:
172 NewReloc.Value = calcNewIndex(File, Reloc);
173 break;
174 }
175
176 OutputRelocs.emplace_back(NewReloc);
177 }
178}
179
180std::string OutputSection::getSectionName() const {
181 return sectionTypeToString(Type);
182}
183
184std::string SubSection::getSectionName() const {
185 return std::string("subsection <type=") + std::to_string(Type) + ">";
186}
187
188void OutputSection::createHeader(size_t BodySize) {
189 raw_string_ostream OS(Header);
190 debugWrite(OS.tell(), "section type [" + Twine(getSectionName()) + "]");
191 writeUleb128(OS, Type, nullptr);
192 writeUleb128(OS, BodySize, "section size");
193 OS.flush();
194 log("createHeader: " + toString(*this) + " body=" + Twine(BodySize) +
195 " total=" + Twine(getSize()));
196}
197
198CodeSection::CodeSection(uint32_t NumFunctions, ArrayRef<ObjFile *> Objs)
199 : OutputSection(WASM_SEC_CODE), InputObjects(Objs) {
200 raw_string_ostream OS(CodeSectionHeader);
201 writeUleb128(OS, NumFunctions, "function count");
202 OS.flush();
203 BodySize = CodeSectionHeader.size();
204
205 for (ObjFile *File : InputObjects) {
206 if (!File->CodeSection)
207 continue;
208
209 File->CodeOffset = BodySize;
210 ArrayRef<uint8_t> Content = File->CodeSection->Content;
211 unsigned HeaderSize = 0;
212 decodeULEB128(Content.data(), &HeaderSize);
213
214 calcRelocations(*File, File->CodeSection->Relocations,
215 File->CodeRelocations, BodySize - HeaderSize);
216
217 size_t PayloadSize = Content.size() - HeaderSize;
218 BodySize += PayloadSize;
219 }
220
221 createHeader(BodySize);
222}
223
224void CodeSection::writeTo(uint8_t *Buf) {
225 log("writing " + toString(*this));
226 log(" size=" + Twine(getSize()));
227 Buf += Offset;
228
229 // Write section header
230 memcpy(Buf, Header.data(), Header.size());
231 Buf += Header.size();
232
233 uint8_t *ContentsStart = Buf;
234
235 // Write code section headers
236 memcpy(Buf, CodeSectionHeader.data(), CodeSectionHeader.size());
237 Buf += CodeSectionHeader.size();
238
239 // Write code section bodies
240 parallelForEach(InputObjects, [ContentsStart](ObjFile *File) {
241 if (!File->CodeSection)
242 return;
243
244 ArrayRef<uint8_t> Content(File->CodeSection->Content);
245
246 // Payload doesn't include the initial header (function count)
247 unsigned HeaderSize = 0;
248 decodeULEB128(Content.data(), &HeaderSize);
249
250 size_t PayloadSize = Content.size() - HeaderSize;
251 memcpy(ContentsStart + File->CodeOffset, Content.data() + HeaderSize,
252 PayloadSize);
253
254 log("applying relocations for: " + File->getName());
255 applyRelocations(ContentsStart, File->CodeRelocations);
256 });
257}
258
259uint32_t CodeSection::numRelocations() const {
260 uint32_t Count = 0;
261 for (ObjFile *File : InputObjects)
262 Count += File->CodeRelocations.size();
263 return Count;
264}
265
266void CodeSection::writeRelocations(raw_ostream &OS) const {
267 for (ObjFile *File : InputObjects)
268 for (const OutputRelocation &Reloc : File->CodeRelocations)
269 writeReloc(OS, Reloc);
270}
271
272DataSection::DataSection(ArrayRef<OutputSegment *> Segments)
273 : OutputSection(WASM_SEC_DATA), Segments(Segments) {
274 raw_string_ostream OS(DataSectionHeader);
275
276 writeUleb128(OS, Segments.size(), "data segment count");
277 OS.flush();
278 BodySize = DataSectionHeader.size();
279
280 for (OutputSegment *Segment : Segments) {
281 raw_string_ostream OS(Segment->Header);
282 writeUleb128(OS, 0, "memory index");
283 writeUleb128(OS, WASM_OPCODE_I32_CONST, "opcode:i32const");
284 writeSleb128(OS, Segment->StartVA, "memory offset");
285 writeUleb128(OS, WASM_OPCODE_END, "opcode:end");
286 writeUleb128(OS, Segment->Size, "segment size");
287 OS.flush();
288 Segment->setSectionOffset(BodySize);
289 BodySize += Segment->Header.size();
290 log("Data segment: size=" + Twine(Segment->Size));
291 for (InputSegment *InputSeg : Segment->InputSegments) {
292 uint32_t InputOffset = InputSeg->getInputSectionOffset();
293 uint32_t OutputOffset = Segment->getSectionOffset() +
294 Segment->Header.size() +
295 InputSeg->getOutputSegmentOffset();
296 calcRelocations(*InputSeg->File, InputSeg->Relocations,
297 InputSeg->OutRelocations, OutputOffset - InputOffset);
298 }
299 BodySize += Segment->Size;
300 }
301
302 createHeader(BodySize);
303}
304
305void DataSection::writeTo(uint8_t *Buf) {
306 log("writing " + toString(*this) + " size=" + Twine(getSize()) +
307 " body=" + Twine(BodySize));
308 Buf += Offset;
309
310 // Write section header
311 memcpy(Buf, Header.data(), Header.size());
312 Buf += Header.size();
313
314 uint8_t *ContentsStart = Buf;
315
316 // Write data section headers
317 memcpy(Buf, DataSectionHeader.data(), DataSectionHeader.size());
318
319 parallelForEach(Segments, [ContentsStart](const OutputSegment *Segment) {
320 // Write data segment header
321 uint8_t *SegStart = ContentsStart + Segment->getSectionOffset();
322 memcpy(SegStart, Segment->Header.data(), Segment->Header.size());
323
324 // Write segment data payload
325 for (const InputSegment *Input : Segment->InputSegments) {
326 ArrayRef<uint8_t> Content(Input->Segment->Data.Content);
327 memcpy(SegStart + Segment->Header.size() +
328 Input->getOutputSegmentOffset(),
329 Content.data(), Content.size());
330 applyRelocations(ContentsStart, Input->OutRelocations);
331 }
332 });
333}
334
335uint32_t DataSection::numRelocations() const {
336 uint32_t Count = 0;
337 for (const OutputSegment *Seg : Segments)
338 for (const InputSegment *InputSeg : Seg->InputSegments)
339 Count += InputSeg->OutRelocations.size();
340 return Count;
341}
342
343void DataSection::writeRelocations(raw_ostream &OS) const {
344 for (const OutputSegment *Seg : Segments)
345 for (const InputSegment *InputSeg : Seg->InputSegments)
346 for (const OutputRelocation &Reloc : InputSeg->OutRelocations)
347 writeReloc(OS, Reloc);
348}
deps/lld/wasm/OutputSections.h created+136
...@@ -0,0 +1,136 @@
1//===- OutputSections.h -----------------------------------------*- C++ -*-===//
2//
3// The LLVM Linker
4//
5// This file is distributed under the University of Illinois Open Source
6// License. See LICENSE.TXT for details.
7//
8//===----------------------------------------------------------------------===//
9
10#ifndef LLD_WASM_OUTPUT_SECTIONS_H
11#define LLD_WASM_OUTPUT_SECTIONS_H
12
13#include "InputSegment.h"
14#include "WriterUtils.h"
15#include "lld/Common/ErrorHandler.h"
16#include "llvm/ADT/DenseMap.h"
17
18using llvm::raw_ostream;
19using llvm::raw_string_ostream;
20
21namespace lld {
22
23namespace wasm {
24class OutputSection;
25}
26std::string toString(const wasm::OutputSection &Section);
27
28namespace wasm {
29
30class OutputSegment;
31class ObjFile;
32
33class OutputSection {
34public:
35 OutputSection(uint32_t Type, std::string Name = "")
36 : Type(Type), Name(Name) {}
37 virtual ~OutputSection() = default;
38
39 std::string getSectionName() const;
40 void setOffset(size_t NewOffset) {
41 log("setOffset: " + toString(*this) + ": " + Twine(NewOffset));
42 Offset = NewOffset;
43 }
44 void createHeader(size_t BodySize);
45 virtual size_t getSize() const = 0;
46 virtual void writeTo(uint8_t *Buf) = 0;
47 virtual void finalizeContents() {}
48 virtual uint32_t numRelocations() const { return 0; }
49 virtual void writeRelocations(raw_ostream &OS) const {}
50
51 std::string Header;
52 uint32_t Type;
53 std::string Name;
54
55protected:
56 size_t Offset = 0;
57};
58
59class SyntheticSection : public OutputSection {
60public:
61 SyntheticSection(uint32_t Type, std::string Name = "")
62 : OutputSection(Type, Name), BodyOutputStream(Body) {
63 if (!Name.empty())
64 writeStr(BodyOutputStream, Name);
65 }
66
67 void writeTo(uint8_t *Buf) override {
68 assert(Offset);
69 log("writing " + toString(*this));
70 memcpy(Buf + Offset, Header.data(), Header.size());
71 memcpy(Buf + Offset + Header.size(), Body.data(), Body.size());
72 }
73
74 size_t getSize() const override { return Header.size() + Body.size(); }
75
76 void finalizeContents() override {
77 BodyOutputStream.flush();
78 createHeader(Body.size());
79 }
80
81 raw_ostream &getStream() { return BodyOutputStream; }
82
83 std::string Body;
84
85protected:
86 raw_string_ostream BodyOutputStream;
87};
88
89// Some synthetic sections (e.g. "name" and "linking") have subsections.
90// Just like the synthetic sections themselves these need to be created before
91// they can be written out (since they are preceded by their length). This
92// class is used to create subsections and then write them into the stream
93// of the parent section.
94class SubSection : public SyntheticSection {
95public:
96 explicit SubSection(uint32_t Type) : SyntheticSection(Type) {}
97
98 std::string getSectionName() const;
99 void writeToStream(raw_ostream &OS) {
100 writeBytes(OS, Header.data(), Header.size());
101 writeBytes(OS, Body.data(), Body.size());
102 }
103};
104
105class CodeSection : public OutputSection {
106public:
107 explicit CodeSection(uint32_t NumFunctions, ArrayRef<ObjFile *> Objs);
108 size_t getSize() const override { return Header.size() + BodySize; }
109 void writeTo(uint8_t *Buf) override;
110 uint32_t numRelocations() const override;
111 void writeRelocations(raw_ostream &OS) const override;
112
113protected:
114 ArrayRef<ObjFile *> InputObjects;
115 std::string CodeSectionHeader;
116 size_t BodySize = 0;
117};
118
119class DataSection : public OutputSection {
120public:
121 explicit DataSection(ArrayRef<OutputSegment *> Segments);
122 size_t getSize() const override { return Header.size() + BodySize; }
123 void writeTo(uint8_t *Buf) override;
124 uint32_t numRelocations() const override;
125 void writeRelocations(raw_ostream &OS) const override;
126
127protected:
128 ArrayRef<OutputSegment *> Segments;
129 std::string DataSectionHeader;
130 size_t BodySize = 0;
131};
132
133} // namespace wasm
134} // namespace lld
135
136#endif // LLD_WASM_OUTPUT_SECTIONS_H
deps/lld/wasm/OutputSegment.h created+56
...@@ -0,0 +1,56 @@
1//===- OutputSegment.h ------------------------------------------*- C++ -*-===//
2//
3// The LLVM Linker
4//
5// This file is distributed under the University of Illinois Open Source
6// License. See LICENSE.TXT for details.
7//
8//===----------------------------------------------------------------------===//
9
10#ifndef LLD_WASM_OUTPUT_SEGMENT_H
11#define LLD_WASM_OUTPUT_SEGMENT_H
12
13#include "InputSegment.h"
14#include "lld/Common/ErrorHandler.h"
15#include "llvm/Object/Wasm.h"
16
17namespace lld {
18namespace wasm {
19
20class InputSegment;
21
22class OutputSegment {
23public:
24 OutputSegment(StringRef N) : Name(N) {}
25
26 void addInputSegment(InputSegment *Segment) {
27 Alignment = std::max(Alignment, Segment->getAlignment());
28 InputSegments.push_back(Segment);
29 Size = llvm::alignTo(Size, Segment->getAlignment());
30 Segment->setOutputSegment(this, Size);
31 Size += Segment->getSize();
32 }
33
34 uint32_t getSectionOffset() const { return SectionOffset; }
35
36 void setSectionOffset(uint32_t Offset) { SectionOffset = Offset; }
37
38 StringRef Name;
39 uint32_t Alignment = 0;
40 uint32_t StartVA = 0;
41 std::vector<InputSegment *> InputSegments;
42
43 // Sum of the size of the all the input segments
44 uint32_t Size = 0;
45
46 // Segment header
47 std::string Header;
48
49private:
50 uint32_t SectionOffset = 0;
51};
52
53} // namespace wasm
54} // namespace lld
55
56#endif // LLD_WASM_OUTPUT_SEGMENT_H
deps/lld/wasm/SymbolTable.cpp created+237
...@@ -0,0 +1,237 @@
1//===- SymbolTable.cpp ----------------------------------------------------===//
2//
3// The LLVM Linker
4//
5// This file is distributed under the University of Illinois Open Source
6// License. See LICENSE.TXT for details.
7//
8//===----------------------------------------------------------------------===//
9
10#include "SymbolTable.h"
11
12#include "Config.h"
13#include "WriterUtils.h"
14#include "lld/Common/ErrorHandler.h"
15#include "lld/Common/Memory.h"
16
17#include <unordered_set>
18
19#define DEBUG_TYPE "lld"
20
21using namespace llvm;
22using namespace lld;
23using namespace lld::wasm;
24
25SymbolTable *lld::wasm::Symtab;
26
27void SymbolTable::addFile(InputFile *File) {
28 log("Processing: " + toString(File));
29 File->parse();
30
31 if (auto *F = dyn_cast<ObjFile>(File))
32 ObjectFiles.push_back(F);
33}
34
35void SymbolTable::reportRemainingUndefines() {
36 std::unordered_set<Symbol *> Undefs;
37 for (Symbol *Sym : SymVector) {
38 if (Sym->isUndefined() && !Sym->isWeak() &&
39 Config->AllowUndefinedSymbols.count(Sym->getName()) == 0) {
40 Undefs.insert(Sym);
41 }
42 }
43
44 if (Undefs.empty())
45 return;
46
47 for (ObjFile *File : ObjectFiles)
48 for (Symbol *Sym : File->getSymbols())
49 if (Undefs.count(Sym))
50 error(toString(File) + ": undefined symbol: " + toString(*Sym));
51
52 for (Symbol *Sym : Undefs)
53 if (!Sym->getFile())
54 error("undefined symbol: " + toString(*Sym));
55}
56
57Symbol *SymbolTable::find(StringRef Name) {
58 auto It = SymMap.find(CachedHashStringRef(Name));
59 if (It == SymMap.end())
60 return nullptr;
61 return It->second;
62}
63
64std::pair<Symbol *, bool> SymbolTable::insert(StringRef Name) {
65 Symbol *&Sym = SymMap[CachedHashStringRef(Name)];
66 if (Sym)
67 return {Sym, false};
68 Sym = make<Symbol>(Name, false);
69 SymVector.emplace_back(Sym);
70 return {Sym, true};
71}
72
73void SymbolTable::reportDuplicate(Symbol *Existing, InputFile *NewFile) {
74 error("duplicate symbol: " + toString(*Existing) + "\n>>> defined in " +
75 toString(Existing->getFile()) + "\n>>> defined in " +
76 toString(NewFile));
77}
78
79// Get the signature for a given function symbol, either by looking
80// it up in function sections (for defined functions), of the imports section
81// (for imported functions).
82static const WasmSignature *getFunctionSig(const ObjFile &Obj,
83 const WasmSymbol &Sym) {
84 DEBUG(dbgs() << "getFunctionSig: " << Sym.Name << "\n");
85 const WasmObjectFile *WasmObj = Obj.getWasmObj();
86 return &WasmObj->types()[Sym.FunctionType];
87}
88
89// Check the type of new symbol matches that of the symbol is replacing.
90// For functions this can also involve verifying that the signatures match.
91static void checkSymbolTypes(const Symbol &Existing, const InputFile &F,
92 const WasmSymbol &New,
93 const WasmSignature *NewSig) {
94 if (Existing.isLazy())
95 return;
96
97 bool NewIsFunction = New.Type == WasmSymbol::SymbolType::FUNCTION_EXPORT ||
98 New.Type == WasmSymbol::SymbolType::FUNCTION_IMPORT;
99
100 // First check the symbol types match (i.e. either both are function
101 // symbols or both are data symbols).
102 if (Existing.isFunction() != NewIsFunction) {
103 error("symbol type mismatch: " + New.Name + "\n>>> defined as " +
104 (Existing.isFunction() ? "Function" : "Global") + " in " +
105 toString(Existing.getFile()) + "\n>>> defined as " +
106 (NewIsFunction ? "Function" : "Global") + " in " + F.getName());
107 return;
108 }
109
110 // For function symbols, optionally check the function signature matches too.
111 if (!NewIsFunction || !Config->CheckSignatures)
112 return;
113 // Skip the signature check if the existing function has no signature (e.g.
114 // if it is an undefined symbol generated by --undefined command line flag).
115 if (!Existing.hasFunctionType())
116 return;
117
118 DEBUG(dbgs() << "checkSymbolTypes: " << New.Name << "\n");
119 assert(NewSig);
120
121 const WasmSignature &OldSig = Existing.getFunctionType();
122 if (*NewSig == OldSig)
123 return;
124
125 error("function signature mismatch: " + New.Name + "\n>>> defined as " +
126 toString(OldSig) + " in " + toString(Existing.getFile()) +
127 "\n>>> defined as " + toString(*NewSig) + " in " + F.getName());
128}
129
130Symbol *SymbolTable::addDefinedGlobal(StringRef Name) {
131 DEBUG(dbgs() << "addDefinedGlobal: " << Name << "\n");
132 Symbol *S;
133 bool WasInserted;
134 std::tie(S, WasInserted) = insert(Name);
135 if (WasInserted)
136 S->update(Symbol::DefinedGlobalKind);
137 else if (!S->isGlobal())
138 error("symbol type mismatch: " + Name);
139 return S;
140}
141
142Symbol *SymbolTable::addDefined(InputFile *F, const WasmSymbol *Sym,
143 const InputSegment *Segment) {
144 DEBUG(dbgs() << "addDefined: " << Sym->Name << "\n");
145 Symbol *S;
146 bool WasInserted;
147 Symbol::Kind Kind = Symbol::DefinedFunctionKind;
148 const WasmSignature *NewSig = nullptr;
149 if (Sym->Type == WasmSymbol::SymbolType::GLOBAL_EXPORT)
150 Kind = Symbol::DefinedGlobalKind;
151 else
152 NewSig = getFunctionSig(*cast<ObjFile>(F), *Sym);
153
154 std::tie(S, WasInserted) = insert(Sym->Name);
155 if (WasInserted) {
156 S->update(Kind, F, Sym, Segment, NewSig);
157 } else if (S->isLazy()) {
158 // The existing symbol is lazy. Replace it without checking types since
159 // lazy symbols don't have any type information.
160 DEBUG(dbgs() << "replacing existing lazy symbol: " << Sym->Name << "\n");
161 S->update(Kind, F, Sym, Segment, NewSig);
162 } else if (!S->isDefined()) {
163 // The existing symbol table entry is undefined. The new symbol replaces
164 // it, after checking the type matches
165 DEBUG(dbgs() << "resolving existing undefined symbol: " << Sym->Name
166 << "\n");
167 checkSymbolTypes(*S, *F, *Sym, NewSig);
168 S->update(Kind, F, Sym, Segment, NewSig);
169 } else if (Sym->isWeak()) {
170 // the new symbol is weak we can ignore it
171 DEBUG(dbgs() << "existing symbol takes precedence\n");
172 } else if (S->isWeak()) {
173 // the new symbol is not weak and the existing symbol is, so we replace
174 // it
175 DEBUG(dbgs() << "replacing existing weak symbol\n");
176 checkSymbolTypes(*S, *F, *Sym, NewSig);
177 S->update(Kind, F, Sym, Segment, NewSig);
178 } else {
179 // neither symbol is week. They conflict.
180 reportDuplicate(S, F);
181 }
182 return S;
183}
184
185Symbol *SymbolTable::addUndefinedFunction(StringRef Name,
186 const WasmSignature *Type) {
187 Symbol *S;
188 bool WasInserted;
189 std::tie(S, WasInserted) = insert(Name);
190 if (WasInserted) {
191 S->update(Symbol::UndefinedFunctionKind, nullptr, nullptr, nullptr, Type);
192 } else if (!S->isFunction()) {
193 error("symbol type mismatch: " + Name);
194 }
195 return S;
196}
197
198Symbol *SymbolTable::addUndefined(InputFile *F, const WasmSymbol *Sym) {
199 DEBUG(dbgs() << "addUndefined: " << Sym->Name << "\n");
200 Symbol *S;
201 bool WasInserted;
202 Symbol::Kind Kind = Symbol::UndefinedFunctionKind;
203 const WasmSignature *NewSig = nullptr;
204 if (Sym->Type == WasmSymbol::SymbolType::GLOBAL_IMPORT)
205 Kind = Symbol::UndefinedGlobalKind;
206 else
207 NewSig = getFunctionSig(*cast<ObjFile>(F), *Sym);
208 std::tie(S, WasInserted) = insert(Sym->Name);
209 if (WasInserted) {
210 S->update(Kind, F, Sym, nullptr, NewSig);
211 } else if (S->isLazy()) {
212 DEBUG(dbgs() << "resolved by existing lazy\n");
213 auto *AF = cast<ArchiveFile>(S->getFile());
214 AF->addMember(&S->getArchiveSymbol());
215 } else if (S->isDefined()) {
216 DEBUG(dbgs() << "resolved by existing\n");
217 checkSymbolTypes(*S, *F, *Sym, NewSig);
218 }
219 return S;
220}
221
222void SymbolTable::addLazy(ArchiveFile *F, const Archive::Symbol *Sym) {
223 DEBUG(dbgs() << "addLazy: " << Sym->getName() << "\n");
224 StringRef Name = Sym->getName();
225 Symbol *S;
226 bool WasInserted;
227 std::tie(S, WasInserted) = insert(Name);
228 if (WasInserted) {
229 S->update(Symbol::LazyKind, F);
230 S->setArchiveSymbol(*Sym);
231 } else if (S->isUndefined()) {
232 // There is an existing undefined symbol. The can load from the
233 // archive.
234 DEBUG(dbgs() << "replacing existing undefined\n");
235 F->addMember(Sym);
236 }
237}
deps/lld/wasm/SymbolTable.h created+71
...@@ -0,0 +1,71 @@
1//===- SymbolTable.h --------------------------------------------*- C++ -*-===//
2//
3// The LLVM Linker
4//
5// This file is distributed under the University of Illinois Open Source
6// License. See LICENSE.TXT for details.
7//
8//===----------------------------------------------------------------------===//
9
10#ifndef LLD_WASM_SYMBOL_TABLE_H
11#define LLD_WASM_SYMBOL_TABLE_H
12
13#include "InputFiles.h"
14#include "Symbols.h"
15
16#include "llvm/ADT/CachedHashString.h"
17#include "llvm/ADT/DenseMap.h"
18#include "llvm/Support/raw_ostream.h"
19
20using llvm::object::WasmSymbol;
21using llvm::wasm::WasmSignature;
22
23namespace lld {
24namespace wasm {
25
26class InputSegment;
27
28// SymbolTable is a bucket of all known symbols, including defined,
29// undefined, or lazy symbols (the last one is symbols in archive
30// files whose archive members are not yet loaded).
31//
32// We put all symbols of all files to a SymbolTable, and the
33// SymbolTable selects the "best" symbols if there are name
34// conflicts. For example, obviously, a defined symbol is better than
35// an undefined symbol. Or, if there's a conflict between a lazy and a
36// undefined, it'll read an archive member to read a real definition
37// to replace the lazy symbol. The logic is implemented in the
38// add*() functions, which are called by input files as they are parsed.
39// There is one add* function per symbol type.
40class SymbolTable {
41public:
42 void addFile(InputFile *File);
43
44 std::vector<ObjFile *> ObjectFiles;
45
46 void reportDuplicate(Symbol *Existing, InputFile *NewFile);
47 void reportRemainingUndefines();
48
49 ArrayRef<Symbol *> getSymbols() const { return SymVector; }
50 Symbol *find(StringRef Name);
51
52 Symbol *addDefined(InputFile *F, const WasmSymbol *Sym,
53 const InputSegment *Segment = nullptr);
54 Symbol *addUndefined(InputFile *F, const WasmSymbol *Sym);
55 Symbol *addUndefinedFunction(StringRef Name, const WasmSignature *Type);
56 Symbol *addDefinedGlobal(StringRef Name);
57 void addLazy(ArchiveFile *F, const Archive::Symbol *Sym);
58
59private:
60 std::pair<Symbol *, bool> insert(StringRef Name);
61
62 llvm::DenseMap<llvm::CachedHashStringRef, Symbol *> SymMap;
63 std::vector<Symbol *> SymVector;
64};
65
66extern SymbolTable *Symtab;
67
68} // namespace wasm
69} // namespace lld
70
71#endif
deps/lld/wasm/Symbols.cpp created+114
...@@ -0,0 +1,114 @@
1//===- Symbols.cpp --------------------------------------------------------===//
2//
3// The LLVM Linker
4//
5// This file is distributed under the University of Illinois Open Source
6// License. See LICENSE.TXT for details.
7//
8//===----------------------------------------------------------------------===//
9
10#include "Symbols.h"
11
12#include "Config.h"
13#include "InputFiles.h"
14#include "InputSegment.h"
15#include "lld/Common/ErrorHandler.h"
16#include "lld/Common/Strings.h"
17
18#define DEBUG_TYPE "lld"
19
20using namespace llvm;
21using namespace lld;
22using namespace lld::wasm;
23
24uint32_t Symbol::getGlobalIndex() const {
25 assert(!Sym->isFunction());
26 return Sym->ElementIndex;
27}
28
29uint32_t Symbol::getFunctionIndex() const {
30 assert(Sym->isFunction());
31 return Sym->ElementIndex;
32}
33
34const WasmSignature &Symbol::getFunctionType() const {
35 assert(FunctionType != nullptr);
36 return *FunctionType;
37}
38
39uint32_t Symbol::getVirtualAddress() const {
40 assert(isGlobal());
41 DEBUG(dbgs() << "getVirtualAddress: " << getName() << "\n");
42 if (isUndefined())
43 return UINT32_MAX;
44 if (VirtualAddress.hasValue())
45 return VirtualAddress.getValue();
46
47 assert(Sym != nullptr);
48 ObjFile *Obj = cast<ObjFile>(File);
49 const WasmGlobal &Global =
50 Obj->getWasmObj()->globals()[getGlobalIndex() - Obj->NumGlobalImports()];
51 assert(Global.Type == llvm::wasm::WASM_TYPE_I32);
52 assert(Segment);
53 return Segment->translateVA(Global.InitExpr.Value.Int32);
54}
55
56uint32_t Symbol::getOutputIndex() const {
57 if (isUndefined() && isWeak())
58 return 0;
59 return OutputIndex.getValue();
60}
61
62void Symbol::setVirtualAddress(uint32_t Value) {
63 DEBUG(dbgs() << "setVirtualAddress " << Name << " -> " << Value << "\n");
64 assert(!VirtualAddress.hasValue());
65 VirtualAddress = Value;
66}
67
68void Symbol::setOutputIndex(uint32_t Index) {
69 DEBUG(dbgs() << "setOutputIndex " << Name << " -> " << Index << "\n");
70 assert(!OutputIndex.hasValue());
71 OutputIndex = Index;
72}
73
74void Symbol::setTableIndex(uint32_t Index) {
75 DEBUG(dbgs() << "setTableIndex " << Name << " -> " << Index << "\n");
76 assert(!TableIndex.hasValue());
77 TableIndex = Index;
78}
79
80void Symbol::update(Kind K, InputFile *F, const WasmSymbol *WasmSym,
81 const InputSegment *Seg, const WasmSignature *Sig) {
82 SymbolKind = K;
83 File = F;
84 Sym = WasmSym;
85 Segment = Seg;
86 FunctionType = Sig;
87}
88
89bool Symbol::isWeak() const { return Sym && Sym->isWeak(); }
90
91bool Symbol::isHidden() const { return Sym && Sym->isHidden(); }
92
93std::string lld::toString(const wasm::Symbol &Sym) {
94 if (Config->Demangle)
95 if (Optional<std::string> S = demangleItanium(Sym.getName()))
96 return "`" + *S + "'";
97 return Sym.getName();
98}
99
100std::string lld::toString(wasm::Symbol::Kind Kind) {
101 switch (Kind) {
102 case wasm::Symbol::DefinedFunctionKind:
103 return "DefinedFunction";
104 case wasm::Symbol::DefinedGlobalKind:
105 return "DefinedGlobal";
106 case wasm::Symbol::UndefinedFunctionKind:
107 return "UndefinedFunction";
108 case wasm::Symbol::UndefinedGlobalKind:
109 return "UndefinedGlobal";
110 case wasm::Symbol::LazyKind:
111 return "LazyKind";
112 }
113 llvm_unreachable("Invalid symbol kind!");
114}
deps/lld/wasm/Symbols.h created+128
...@@ -0,0 +1,128 @@
1//===- Symbols.h ------------------------------------------------*- C++ -*-===//
2//
3// The LLVM Linker
4//
5// This file is distributed under the University of Illinois Open Source
6// License. See LICENSE.TXT for details.
7//
8//===----------------------------------------------------------------------===//
9
10#ifndef LLD_WASM_SYMBOLS_H
11#define LLD_WASM_SYMBOLS_H
12
13#include "lld/Common/LLVM.h"
14#include "llvm/Object/Archive.h"
15#include "llvm/Object/Wasm.h"
16
17using llvm::object::Archive;
18using llvm::object::WasmSymbol;
19using llvm::wasm::WasmExport;
20using llvm::wasm::WasmImport;
21using llvm::wasm::WasmSignature;
22
23namespace lld {
24namespace wasm {
25
26class InputFile;
27class InputSegment;
28
29class Symbol {
30public:
31 enum Kind {
32 DefinedFunctionKind,
33 DefinedGlobalKind,
34
35 LazyKind,
36 UndefinedFunctionKind,
37 UndefinedGlobalKind,
38
39 LastDefinedKind = DefinedGlobalKind,
40 InvalidKind,
41 };
42
43 Symbol(StringRef Name, bool IsLocal)
44 : WrittenToSymtab(0), WrittenToNameSec(0), IsLocal(IsLocal), Name(Name) {}
45
46 Kind getKind() const { return SymbolKind; }
47
48 bool isLazy() const { return SymbolKind == LazyKind; }
49 bool isDefined() const { return SymbolKind <= LastDefinedKind; }
50 bool isUndefined() const {
51 return SymbolKind == UndefinedGlobalKind ||
52 SymbolKind == UndefinedFunctionKind;
53 }
54 bool isFunction() const {
55 return SymbolKind == DefinedFunctionKind ||
56 SymbolKind == UndefinedFunctionKind;
57 }
58 bool isGlobal() const { return !isFunction(); }
59 bool isLocal() const { return IsLocal; }
60 bool isWeak() const;
61 bool isHidden() const;
62
63 // Returns the symbol name.
64 StringRef getName() const { return Name; }
65
66 // Returns the file from which this symbol was created.
67 InputFile *getFile() const { return File; }
68
69 uint32_t getGlobalIndex() const;
70 uint32_t getFunctionIndex() const;
71
72 bool hasFunctionType() const { return FunctionType != nullptr; }
73 const WasmSignature &getFunctionType() const;
74 uint32_t getOutputIndex() const;
75 uint32_t getTableIndex() const { return TableIndex.getValue(); }
76
77 // Returns the virtual address of a defined global.
78 // Only works for globals, not functions.
79 uint32_t getVirtualAddress() const;
80
81 // Set the output index of the symbol (in the function or global index
82 // space of the output object.
83 void setOutputIndex(uint32_t Index);
84
85 // Returns true if a table index has been set for this symbol
86 bool hasTableIndex() const { return TableIndex.hasValue(); }
87
88 // Set the table index of the symbol
89 void setTableIndex(uint32_t Index);
90
91 void setVirtualAddress(uint32_t VA);
92
93 void update(Kind K, InputFile *F = nullptr, const WasmSymbol *Sym = nullptr,
94 const InputSegment *Segment = nullptr,
95 const WasmSignature *Sig = nullptr);
96
97 void setArchiveSymbol(const Archive::Symbol &Sym) { ArchiveSymbol = Sym; }
98 const Archive::Symbol &getArchiveSymbol() { return ArchiveSymbol; }
99
100 // This bit is used by Writer::writeNameSection() to prevent
101 // symbols from being written to the symbol table more than once.
102 unsigned WrittenToSymtab : 1;
103 unsigned WrittenToNameSec : 1;
104
105protected:
106 unsigned IsLocal : 1;
107
108 StringRef Name;
109 Archive::Symbol ArchiveSymbol = {nullptr, 0, 0};
110 Kind SymbolKind = InvalidKind;
111 InputFile *File = nullptr;
112 const WasmSymbol *Sym = nullptr;
113 const InputSegment *Segment = nullptr;
114 llvm::Optional<uint32_t> OutputIndex;
115 llvm::Optional<uint32_t> TableIndex;
116 llvm::Optional<uint32_t> VirtualAddress;
117 const WasmSignature *FunctionType;
118};
119
120} // namespace wasm
121
122// Returns a symbol name for an error message.
123std::string toString(const wasm::Symbol &Sym);
124std::string toString(wasm::Symbol::Kind Kind);
125
126} // namespace lld
127
128#endif
deps/lld/wasm/Writer.cpp created+745
...@@ -0,0 +1,745 @@
1//===- Writer.cpp ---------------------------------------------------------===//
2//
3// The LLVM Linker
4//
5// This file is distributed under the University of Illinois Open Source
6// License. See LICENSE.TXT for details.
7//
8//===----------------------------------------------------------------------===//
9
10#include "Writer.h"
11
12#include "Config.h"
13#include "OutputSections.h"
14#include "OutputSegment.h"
15#include "SymbolTable.h"
16#include "WriterUtils.h"
17#include "lld/Common/ErrorHandler.h"
18#include "lld/Common/Memory.h"
19#include "lld/Common/Threads.h"
20#include "llvm/Support/FileOutputBuffer.h"
21#include "llvm/Support/Format.h"
22#include "llvm/Support/FormatVariadic.h"
23#include "llvm/Support/LEB128.h"
24
25#include <cstdarg>
26
27#define DEBUG_TYPE "lld"
28
29using namespace llvm;
30using namespace llvm::wasm;
31using namespace lld;
32using namespace lld::wasm;
33
34static constexpr int kStackAlignment = 16;
35
36namespace {
37
38// Traits for using WasmSignature in a DenseMap.
39struct WasmSignatureDenseMapInfo {
40 static WasmSignature getEmptyKey() {
41 WasmSignature Sig;
42 Sig.ReturnType = 1;
43 return Sig;
44 }
45 static WasmSignature getTombstoneKey() {
46 WasmSignature Sig;
47 Sig.ReturnType = 2;
48 return Sig;
49 }
50 static unsigned getHashValue(const WasmSignature &Sig) {
51 uintptr_t Value = 0;
52 Value += DenseMapInfo<int32_t>::getHashValue(Sig.ReturnType);
53 for (int32_t Param : Sig.ParamTypes)
54 Value += DenseMapInfo<int32_t>::getHashValue(Param);
55 return Value;
56 }
57 static bool isEqual(const WasmSignature &LHS, const WasmSignature &RHS) {
58 return LHS == RHS;
59 }
60};
61
62// The writer writes a SymbolTable result to a file.
63class Writer {
64public:
65 void run();
66
67private:
68 void openFile();
69
70 uint32_t getTypeIndex(const WasmSignature &Sig);
71 void assignSymbolIndexes();
72 void calculateImports();
73 void calculateOffsets();
74 void calculateTypes();
75 void createOutputSegments();
76 void layoutMemory();
77 void createHeader();
78 void createSections();
79 SyntheticSection *createSyntheticSection(uint32_t Type,
80 std::string Name = "");
81
82 // Builtin sections
83 void createTypeSection();
84 void createFunctionSection();
85 void createTableSection();
86 void createGlobalSection();
87 void createExportSection();
88 void createImportSection();
89 void createMemorySection();
90 void createElemSection();
91 void createStartSection();
92 void createCodeSection();
93 void createDataSection();
94
95 // Custom sections
96 void createRelocSections();
97 void createLinkingSection();
98 void createNameSection();
99
100 void writeHeader();
101 void writeSections();
102
103 uint64_t FileSize = 0;
104 uint32_t DataSize = 0;
105 uint32_t NumFunctions = 0;
106 uint32_t NumMemoryPages = 0;
107 uint32_t InitialTableOffset = 0;
108
109 std::vector<const WasmSignature *> Types;
110 DenseMap<WasmSignature, int32_t, WasmSignatureDenseMapInfo> TypeIndices;
111 std::vector<const Symbol *> FunctionImports;
112 std::vector<const Symbol *> GlobalImports;
113 std::vector<const Symbol *> DefinedGlobals;
114 std::vector<const Symbol *> IndirectFunctions;
115
116 // Elements that are used to construct the final output
117 std::string Header;
118 std::vector<OutputSection *> OutputSections;
119
120 std::unique_ptr<FileOutputBuffer> Buffer;
121
122 std::vector<OutputSegment *> Segments;
123 llvm::SmallDenseMap<StringRef, OutputSegment *> SegmentMap;
124};
125
126} // anonymous namespace
127
128static void debugPrint(const char *fmt, ...) {
129 if (!errorHandler().Verbose)
130 return;
131 fprintf(stderr, "lld: ");
132 va_list ap;
133 va_start(ap, fmt);
134 vfprintf(stderr, fmt, ap);
135 va_end(ap);
136}
137
138void Writer::createImportSection() {
139 uint32_t NumImports = FunctionImports.size() + GlobalImports.size();
140 if (Config->ImportMemory)
141 ++NumImports;
142
143 if (NumImports == 0)
144 return;
145
146 SyntheticSection *Section = createSyntheticSection(WASM_SEC_IMPORT);
147 raw_ostream &OS = Section->getStream();
148
149 writeUleb128(OS, NumImports, "import count");
150
151 for (const Symbol *Sym : FunctionImports) {
152 WasmImport Import;
153 Import.Module = "env";
154 Import.Field = Sym->getName();
155 Import.Kind = WASM_EXTERNAL_FUNCTION;
156 assert(TypeIndices.count(Sym->getFunctionType()) > 0);
157 Import.SigIndex = TypeIndices.lookup(Sym->getFunctionType());
158 writeImport(OS, Import);
159 }
160
161 if (Config->ImportMemory) {
162 WasmImport Import;
163 Import.Module = "env";
164 Import.Field = "memory";
165 Import.Kind = WASM_EXTERNAL_MEMORY;
166 Import.Memory.Flags = 0;
167 Import.Memory.Initial = NumMemoryPages;
168 writeImport(OS, Import);
169 }
170
171 for (const Symbol *Sym : GlobalImports) {
172 WasmImport Import;
173 Import.Module = "env";
174 Import.Field = Sym->getName();
175 Import.Kind = WASM_EXTERNAL_GLOBAL;
176 Import.Global.Mutable = false;
177 Import.Global.Type = WASM_TYPE_I32;
178 writeImport(OS, Import);
179 }
180}
181
182void Writer::createTypeSection() {
183 SyntheticSection *Section = createSyntheticSection(WASM_SEC_TYPE);
184 raw_ostream &OS = Section->getStream();
185 writeUleb128(OS, Types.size(), "type count");
186 for (const WasmSignature *Sig : Types)
187 writeSig(OS, *Sig);
188}
189
190void Writer::createFunctionSection() {
191 if (!NumFunctions)
192 return;
193
194 SyntheticSection *Section = createSyntheticSection(WASM_SEC_FUNCTION);
195 raw_ostream &OS = Section->getStream();
196
197 writeUleb128(OS, NumFunctions, "function count");
198 for (ObjFile *File : Symtab->ObjectFiles)
199 for (uint32_t Sig : File->getWasmObj()->functionTypes())
200 writeUleb128(OS, File->relocateTypeIndex(Sig), "sig index");
201}
202
203void Writer::createMemorySection() {
204 if (Config->ImportMemory)
205 return;
206
207 SyntheticSection *Section = createSyntheticSection(WASM_SEC_MEMORY);
208 raw_ostream &OS = Section->getStream();
209
210 writeUleb128(OS, 1, "memory count");
211 writeUleb128(OS, 0, "memory limits flags");
212 writeUleb128(OS, NumMemoryPages, "initial pages");
213}
214
215void Writer::createGlobalSection() {
216 if (DefinedGlobals.empty())
217 return;
218
219 SyntheticSection *Section = createSyntheticSection(WASM_SEC_GLOBAL);
220 raw_ostream &OS = Section->getStream();
221
222 writeUleb128(OS, DefinedGlobals.size(), "global count");
223 for (const Symbol *Sym : DefinedGlobals) {
224 WasmGlobal Global;
225 Global.Type = WASM_TYPE_I32;
226 Global.Mutable = Sym == Config->StackPointerSymbol;
227 Global.InitExpr.Opcode = WASM_OPCODE_I32_CONST;
228 Global.InitExpr.Value.Int32 = Sym->getVirtualAddress();
229 writeGlobal(OS, Global);
230 }
231}
232
233void Writer::createTableSection() {
234 // Always output a table section, even if there are no indirect calls.
235 // There are two reasons for this:
236 // 1. For executables it is useful to have an empty table slot at 0
237 // which can be filled with a null function call handler.
238 // 2. If we don't do this, any program that contains a call_indirect but
239 // no address-taken function will fail at validation time since it is
240 // a validation error to include a call_indirect instruction if there
241 // is not table.
242 uint32_t TableSize = InitialTableOffset + IndirectFunctions.size();
243
244 SyntheticSection *Section = createSyntheticSection(WASM_SEC_TABLE);
245 raw_ostream &OS = Section->getStream();
246
247 writeUleb128(OS, 1, "table count");
248 writeSleb128(OS, WASM_TYPE_ANYFUNC, "table type");
249 writeUleb128(OS, WASM_LIMITS_FLAG_HAS_MAX, "table flags");
250 writeUleb128(OS, TableSize, "table initial size");
251 writeUleb128(OS, TableSize, "table max size");
252}
253
254void Writer::createExportSection() {
255 bool ExportMemory = !Config->Relocatable && !Config->ImportMemory;
256 Symbol *EntrySym = Symtab->find(Config->Entry);
257 bool ExportEntry = !Config->Relocatable && EntrySym && EntrySym->isDefined();
258 bool ExportHidden = Config->EmitRelocs;
259
260 uint32_t NumExports = ExportMemory ? 1 : 0;
261
262 std::vector<const Symbol *> SymbolExports;
263 if (ExportEntry)
264 SymbolExports.emplace_back(EntrySym);
265
266 for (const Symbol *Sym : Symtab->getSymbols()) {
267 if (Sym->isUndefined() || Sym->isGlobal())
268 continue;
269 if (Sym->isHidden() && !ExportHidden)
270 continue;
271 if (ExportEntry && Sym == EntrySym)
272 continue;
273 SymbolExports.emplace_back(Sym);
274 }
275
276 for (const Symbol *Sym : DefinedGlobals) {
277 // Can't export the SP right now because it mutable and mutable globals
278 // connot be exported.
279 if (Sym == Config->StackPointerSymbol)
280 continue;
281 SymbolExports.emplace_back(Sym);
282 }
283
284 NumExports += SymbolExports.size();
285 if (!NumExports)
286 return;
287
288 SyntheticSection *Section = createSyntheticSection(WASM_SEC_EXPORT);
289 raw_ostream &OS = Section->getStream();
290
291 writeUleb128(OS, NumExports, "export count");
292
293 if (ExportMemory) {
294 WasmExport MemoryExport;
295 MemoryExport.Name = "memory";
296 MemoryExport.Kind = WASM_EXTERNAL_MEMORY;
297 MemoryExport.Index = 0;
298 writeExport(OS, MemoryExport);
299 }
300
301 for (const Symbol *Sym : SymbolExports) {
302 log("Export: " + Sym->getName());
303 WasmExport Export;
304 Export.Name = Sym->getName();
305 Export.Index = Sym->getOutputIndex();
306 if (Sym->isFunction())
307 Export.Kind = WASM_EXTERNAL_FUNCTION;
308 else
309 Export.Kind = WASM_EXTERNAL_GLOBAL;
310 writeExport(OS, Export);
311 }
312}
313
314void Writer::createStartSection() {}
315
316void Writer::createElemSection() {
317 if (IndirectFunctions.empty())
318 return;
319
320 SyntheticSection *Section = createSyntheticSection(WASM_SEC_ELEM);
321 raw_ostream &OS = Section->getStream();
322
323 writeUleb128(OS, 1, "segment count");
324 writeUleb128(OS, 0, "table index");
325 WasmInitExpr InitExpr;
326 InitExpr.Opcode = WASM_OPCODE_I32_CONST;
327 InitExpr.Value.Int32 = InitialTableOffset;
328 writeInitExpr(OS, InitExpr);
329 writeUleb128(OS, IndirectFunctions.size(), "elem count");
330
331 uint32_t TableIndex = InitialTableOffset;
332 for (const Symbol *Sym : IndirectFunctions) {
333 assert(Sym->getTableIndex() == TableIndex);
334 writeUleb128(OS, Sym->getOutputIndex(), "function index");
335 ++TableIndex;
336 }
337}
338
339void Writer::createCodeSection() {
340 if (!NumFunctions)
341 return;
342
343 log("createCodeSection");
344
345 auto Section = make<CodeSection>(NumFunctions, Symtab->ObjectFiles);
346 OutputSections.push_back(Section);
347}
348
349void Writer::createDataSection() {
350 if (!Segments.size())
351 return;
352
353 log("createDataSection");
354 auto Section = make<DataSection>(Segments);
355 OutputSections.push_back(Section);
356}
357
358// Create relocations sections in the final output.
359// These are only created when relocatable output is requested.
360void Writer::createRelocSections() {
361 log("createRelocSections");
362 // Don't use iterator here since we are adding to OutputSection
363 size_t OrigSize = OutputSections.size();
364 for (size_t i = 0; i < OrigSize; i++) {
365 OutputSection *S = OutputSections[i];
366 const char *name;
367 uint32_t Count = S->numRelocations();
368 if (!Count)
369 continue;
370
371 if (S->Type == WASM_SEC_DATA)
372 name = "reloc.DATA";
373 else if (S->Type == WASM_SEC_CODE)
374 name = "reloc.CODE";
375 else
376 llvm_unreachable("relocations only supported for code and data");
377
378 SyntheticSection *Section = createSyntheticSection(WASM_SEC_CUSTOM, name);
379 raw_ostream &OS = Section->getStream();
380 writeUleb128(OS, S->Type, "reloc section");
381 writeUleb128(OS, Count, "reloc count");
382 S->writeRelocations(OS);
383 }
384}
385
386// Create the custom "linking" section containing linker metadata.
387// This is only created when relocatable output is requested.
388void Writer::createLinkingSection() {
389 SyntheticSection *Section =
390 createSyntheticSection(WASM_SEC_CUSTOM, "linking");
391 raw_ostream &OS = Section->getStream();
392
393 SubSection DataSizeSubSection(WASM_DATA_SIZE);
394 writeUleb128(DataSizeSubSection.getStream(), DataSize, "data size");
395 DataSizeSubSection.finalizeContents();
396 DataSizeSubSection.writeToStream(OS);
397
398 if (!Config->Relocatable)
399 return;
400
401 if (Segments.size()) {
402 SubSection SubSection(WASM_SEGMENT_INFO);
403 writeUleb128(SubSection.getStream(), Segments.size(), "num data segments");
404 for (const OutputSegment *S : Segments) {
405 writeStr(SubSection.getStream(), S->Name, "segment name");
406 writeUleb128(SubSection.getStream(), S->Alignment, "alignment");
407 writeUleb128(SubSection.getStream(), 0, "flags");
408 }
409 SubSection.finalizeContents();
410 SubSection.writeToStream(OS);
411 }
412
413 std::vector<WasmInitFunc> InitFunctions;
414 for (ObjFile *File : Symtab->ObjectFiles) {
415 const WasmLinkingData &L = File->getWasmObj()->linkingData();
416 InitFunctions.reserve(InitFunctions.size() + L.InitFunctions.size());
417 for (const WasmInitFunc &F : L.InitFunctions)
418 InitFunctions.emplace_back(WasmInitFunc{
419 F.Priority, File->relocateFunctionIndex(F.FunctionIndex)});
420 }
421
422 if (!InitFunctions.empty()) {
423 SubSection SubSection(WASM_INIT_FUNCS);
424 writeUleb128(SubSection.getStream(), InitFunctions.size(),
425 "num init functionsw");
426 for (const WasmInitFunc &F : InitFunctions) {
427 writeUleb128(SubSection.getStream(), F.Priority, "priority");
428 writeUleb128(SubSection.getStream(), F.FunctionIndex, "function index");
429 }
430 SubSection.finalizeContents();
431 SubSection.writeToStream(OS);
432 }
433}
434
435// Create the custom "name" section containing debug symbol names.
436void Writer::createNameSection() {
437 // Create an array of all function sorted by function index space
438 std::vector<const Symbol *> Names;
439
440 for (ObjFile *File : Symtab->ObjectFiles) {
441 Names.reserve(Names.size() + File->getSymbols().size());
442 for (Symbol *S : File->getSymbols()) {
443 if (!S->isFunction() || S->isWeak() || S->WrittenToNameSec)
444 continue;
445 S->WrittenToNameSec = true;
446 Names.emplace_back(S);
447 }
448 }
449
450 SyntheticSection *Section = createSyntheticSection(WASM_SEC_CUSTOM, "name");
451
452 std::sort(Names.begin(), Names.end(), [](const Symbol *A, const Symbol *B) {
453 return A->getOutputIndex() < B->getOutputIndex();
454 });
455
456 SubSection FunctionSubsection(WASM_NAMES_FUNCTION);
457 raw_ostream &OS = FunctionSubsection.getStream();
458 writeUleb128(OS, Names.size(), "name count");
459
460 // We have to iterate through the inputs twice so that all the imports
461 // appear first before any of the local function names.
462 for (const Symbol *S : Names) {
463 writeUleb128(OS, S->getOutputIndex(), "func index");
464 writeStr(OS, S->getName(), "symbol name");
465 }
466
467 FunctionSubsection.finalizeContents();
468 FunctionSubsection.writeToStream(Section->getStream());
469}
470
471void Writer::writeHeader() {
472 memcpy(Buffer->getBufferStart(), Header.data(), Header.size());
473}
474
475void Writer::writeSections() {
476 uint8_t *Buf = Buffer->getBufferStart();
477 parallelForEach(OutputSections, [Buf](OutputSection *S) { S->writeTo(Buf); });
478}
479
480// Fix the memory layout of the output binary. This assigns memory offsets
481// to each of the input data sections as well as the explicit stack region.
482void Writer::layoutMemory() {
483 uint32_t MemoryPtr = 0;
484 if (!Config->Relocatable) {
485 MemoryPtr = Config->GlobalBase;
486 debugPrint("mem: global base = %d\n", Config->GlobalBase);
487 }
488
489 createOutputSegments();
490
491 // Static data comes first
492 for (OutputSegment *Seg : Segments) {
493 MemoryPtr = alignTo(MemoryPtr, Seg->Alignment);
494 Seg->StartVA = MemoryPtr;
495 debugPrint("mem: %-10s offset=%-8d size=%-4d align=%d\n",
496 Seg->Name.str().c_str(), MemoryPtr, Seg->Size, Seg->Alignment);
497 MemoryPtr += Seg->Size;
498 }
499
500 DataSize = MemoryPtr;
501 if (!Config->Relocatable)
502 DataSize -= Config->GlobalBase;
503 debugPrint("mem: static data = %d\n", DataSize);
504
505 // Stack comes after static data
506 if (!Config->Relocatable) {
507 MemoryPtr = alignTo(MemoryPtr, kStackAlignment);
508 if (Config->ZStackSize != alignTo(Config->ZStackSize, kStackAlignment))
509 error("stack size must be " + Twine(kStackAlignment) + "-byte aligned");
510 debugPrint("mem: stack size = %d\n", Config->ZStackSize);
511 debugPrint("mem: stack base = %d\n", MemoryPtr);
512 MemoryPtr += Config->ZStackSize;
513 Config->StackPointerSymbol->setVirtualAddress(MemoryPtr);
514 debugPrint("mem: stack top = %d\n", MemoryPtr);
515 }
516
517 uint32_t MemSize = alignTo(MemoryPtr, WasmPageSize);
518 NumMemoryPages = MemSize / WasmPageSize;
519 debugPrint("mem: total pages = %d\n", NumMemoryPages);
520}
521
522SyntheticSection *Writer::createSyntheticSection(uint32_t Type,
523 std::string Name) {
524 auto Sec = make<SyntheticSection>(Type, Name);
525 log("createSection: " + toString(*Sec));
526 OutputSections.push_back(Sec);
527 return Sec;
528}
529
530void Writer::createSections() {
531 // Known sections
532 createTypeSection();
533 createImportSection();
534 createFunctionSection();
535 createTableSection();
536 createMemorySection();
537 createGlobalSection();
538 createExportSection();
539 createStartSection();
540 createElemSection();
541 createCodeSection();
542 createDataSection();
543
544 // Custom sections
545 if (Config->EmitRelocs)
546 createRelocSections();
547 createLinkingSection();
548 if (!Config->StripDebug && !Config->StripAll)
549 createNameSection();
550
551 for (OutputSection *S : OutputSections) {
552 S->setOffset(FileSize);
553 S->finalizeContents();
554 FileSize += S->getSize();
555 }
556}
557
558void Writer::calculateOffsets() {
559 for (ObjFile *File : Symtab->ObjectFiles) {
560 const WasmObjectFile *WasmFile = File->getWasmObj();
561
562 // Function Index
563 File->FunctionIndexOffset =
564 FunctionImports.size() - File->NumFunctionImports() + NumFunctions;
565 NumFunctions += WasmFile->functions().size();
566
567 // Memory
568 if (WasmFile->memories().size() > 1)
569 fatal(File->getName() + ": contains more than one memory");
570 }
571}
572
573void Writer::calculateImports() {
574 for (Symbol *Sym : Symtab->getSymbols()) {
575 if (!Sym->isUndefined() || Sym->isWeak())
576 continue;
577
578 if (Sym->isFunction()) {
579 Sym->setOutputIndex(FunctionImports.size());
580 FunctionImports.push_back(Sym);
581 } else {
582 Sym->setOutputIndex(GlobalImports.size());
583 GlobalImports.push_back(Sym);
584 }
585 }
586}
587
588uint32_t Writer::getTypeIndex(const WasmSignature &Sig) {
589 auto Pair = TypeIndices.insert(std::make_pair(Sig, Types.size()));
590 if (Pair.second)
591 Types.push_back(&Sig);
592 return Pair.first->second;
593}
594
595void Writer::calculateTypes() {
596 for (ObjFile *File : Symtab->ObjectFiles) {
597 File->TypeMap.reserve(File->getWasmObj()->types().size());
598 for (const WasmSignature &Sig : File->getWasmObj()->types())
599 File->TypeMap.push_back(getTypeIndex(Sig));
600 }
601}
602
603void Writer::assignSymbolIndexes() {
604 uint32_t GlobalIndex = GlobalImports.size();
605
606 if (Config->StackPointerSymbol) {
607 DefinedGlobals.emplace_back(Config->StackPointerSymbol);
608 Config->StackPointerSymbol->setOutputIndex(GlobalIndex++);
609 }
610
611 if (Config->EmitRelocs)
612 DefinedGlobals.reserve(Symtab->getSymbols().size());
613
614 uint32_t TableIndex = InitialTableOffset;
615
616 for (ObjFile *File : Symtab->ObjectFiles) {
617 DEBUG(dbgs() << "assignSymbolIndexes: " << File->getName() << "\n");
618
619 for (Symbol *Sym : File->getSymbols()) {
620 // Assign indexes for symbols defined with this file.
621 if (!Sym->isDefined() || File != Sym->getFile())
622 continue;
623 if (Sym->isFunction()) {
624 auto *Obj = cast<ObjFile>(Sym->getFile());
625 Sym->setOutputIndex(Obj->FunctionIndexOffset +
626 Sym->getFunctionIndex());
627 } else if (Config->EmitRelocs) {
628 DefinedGlobals.emplace_back(Sym);
629 Sym->setOutputIndex(GlobalIndex++);
630 }
631 }
632
633 for (Symbol *Sym : File->getTableSymbols()) {
634 if (!Sym->hasTableIndex()) {
635 Sym->setTableIndex(TableIndex++);
636 IndirectFunctions.emplace_back(Sym);
637 }
638 }
639 }
640}
641
642static StringRef getOutputDataSegmentName(StringRef Name) {
643 if (Config->Relocatable)
644 return Name;
645
646 for (StringRef V :
647 {".text.", ".rodata.", ".data.rel.ro.", ".data.", ".bss.rel.ro.",
648 ".bss.", ".init_array.", ".fini_array.", ".ctors.", ".dtors.", ".tbss.",
649 ".gcc_except_table.", ".tdata.", ".ARM.exidx.", ".ARM.extab."}) {
650 StringRef Prefix = V.drop_back();
651 if (Name.startswith(V) || Name == Prefix)
652 return Prefix;
653 }
654
655 return Name;
656}
657
658void Writer::createOutputSegments() {
659 for (ObjFile *File : Symtab->ObjectFiles) {
660 for (InputSegment *Segment : File->Segments) {
661 StringRef Name = getOutputDataSegmentName(Segment->getName());
662 OutputSegment *&S = SegmentMap[Name];
663 if (S == nullptr) {
664 DEBUG(dbgs() << "new segment: " << Name << "\n");
665 S = make<OutputSegment>(Name);
666 Segments.push_back(S);
667 }
668 S->addInputSegment(Segment);
669 DEBUG(dbgs() << "added data: " << Name << ": " << S->Size << "\n");
670 }
671 }
672}
673
674void Writer::run() {
675 if (!Config->Relocatable)
676 InitialTableOffset = 1;
677
678 log("-- calculateTypes");
679 calculateTypes();
680 log("-- calculateImports");
681 calculateImports();
682 log("-- calculateOffsets");
683 calculateOffsets();
684
685 if (errorHandler().Verbose) {
686 log("Defined Functions: " + Twine(NumFunctions));
687 log("Defined Globals : " + Twine(DefinedGlobals.size()));
688 log("Function Imports : " + Twine(FunctionImports.size()));
689 log("Global Imports : " + Twine(GlobalImports.size()));
690 log("Total Imports : " +
691 Twine(FunctionImports.size() + GlobalImports.size()));
692 for (ObjFile *File : Symtab->ObjectFiles)
693 File->dumpInfo();
694 }
695
696 log("-- assignSymbolIndexes");
697 assignSymbolIndexes();
698 log("-- layoutMemory");
699 layoutMemory();
700
701 createHeader();
702 log("-- createSections");
703 createSections();
704
705 log("-- openFile");
706 openFile();
707 if (errorCount())
708 return;
709
710 writeHeader();
711
712 log("-- writeSections");
713 writeSections();
714 if (errorCount())
715 return;
716
717 if (Error E = Buffer->commit())
718 fatal("failed to write the output file: " + toString(std::move(E)));
719}
720
721// Open a result file.
722void Writer::openFile() {
723 log("writing: " + Config->OutputFile);
724 ::remove(Config->OutputFile.str().c_str());
725
726 Expected<std::unique_ptr<FileOutputBuffer>> BufferOrErr =
727 FileOutputBuffer::create(Config->OutputFile, FileSize,
728 FileOutputBuffer::F_executable);
729
730 if (!BufferOrErr)
731 error("failed to open " + Config->OutputFile + ": " +
732 toString(BufferOrErr.takeError()));
733 else
734 Buffer = std::move(*BufferOrErr);
735}
736
737void Writer::createHeader() {
738 raw_string_ostream OS(Header);
739 writeBytes(OS, WasmMagic, sizeof(WasmMagic), "wasm magic");
740 writeU32(OS, WasmVersion, "wasm version");
741 OS.flush();
742 FileSize += Header.size();
743}
744
745void lld::wasm::writeResult() { Writer().run(); }
deps/lld/wasm/Writer.h created+21
...@@ -0,0 +1,21 @@
1//===- Writer.h -------------------------------------------------*- C++ -*-===//
2//
3// The LLVM Linker
4//
5// This file is distributed under the University of Illinois Open Source
6// License. See LICENSE.TXT for details.
7//
8//===----------------------------------------------------------------------===//
9
10#ifndef LLD_WASM_WRITER_H
11#define LLD_WASM_WRITER_H
12
13namespace lld {
14namespace wasm {
15
16void writeResult();
17
18} // namespace wasm
19} // namespace lld
20
21#endif
deps/lld/wasm/WriterUtils.cpp created+215
...@@ -0,0 +1,215 @@
1//===- WriterUtils.cpp ----------------------------------------------------===//
2//
3// The LLVM Linker
4//
5// This file is distributed under the University of Illinois Open Source
6// License. See LICENSE.TXT for details.
7//
8//===----------------------------------------------------------------------===//
9
10#include "WriterUtils.h"
11
12#include "lld/Common/ErrorHandler.h"
13
14#include "llvm/Support/Debug.h"
15#include "llvm/Support/EndianStream.h"
16#include "llvm/Support/FormatVariadic.h"
17#include "llvm/Support/LEB128.h"
18
19#define DEBUG_TYPE "lld"
20
21using namespace llvm;
22using namespace llvm::wasm;
23using namespace lld::wasm;
24
25static const char *valueTypeToString(int32_t Type) {
26 switch (Type) {
27 case WASM_TYPE_I32:
28 return "i32";
29 case WASM_TYPE_I64:
30 return "i64";
31 case WASM_TYPE_F32:
32 return "f32";
33 case WASM_TYPE_F64:
34 return "f64";
35 default:
36 llvm_unreachable("invalid value type");
37 }
38}
39
40namespace lld {
41
42void wasm::debugWrite(uint64_t offset, Twine msg) {
43 DEBUG(dbgs() << format(" | %08" PRIx64 ": ", offset) << msg << "\n");
44}
45
46void wasm::writeUleb128(raw_ostream &OS, uint32_t Number, const char *msg) {
47 if (msg)
48 debugWrite(OS.tell(), msg + formatv(" [{0:x}]", Number));
49 encodeULEB128(Number, OS);
50}
51
52void wasm::writeSleb128(raw_ostream &OS, int32_t Number, const char *msg) {
53 if (msg)
54 debugWrite(OS.tell(), msg + formatv(" [{0:x}]", Number));
55 encodeSLEB128(Number, OS);
56}
57
58void wasm::writeBytes(raw_ostream &OS, const char *bytes, size_t count,
59 const char *msg) {
60 if (msg)
61 debugWrite(OS.tell(), msg + formatv(" [data[{0}]]", count));
62 OS.write(bytes, count);
63}
64
65void wasm::writeStr(raw_ostream &OS, const StringRef String, const char *msg) {
66 if (msg)
67 debugWrite(OS.tell(),
68 msg + formatv(" [str[{0}]: {1}]", String.size(), String));
69 writeUleb128(OS, String.size(), nullptr);
70 writeBytes(OS, String.data(), String.size());
71}
72
73void wasm::writeU8(raw_ostream &OS, uint8_t byte, const char *msg) {
74 OS << byte;
75}
76
77void wasm::writeU32(raw_ostream &OS, uint32_t Number, const char *msg) {
78 debugWrite(OS.tell(), msg + formatv("[{0:x}]", Number));
79 support::endian::Writer<support::little>(OS).write(Number);
80}
81
82void wasm::writeValueType(raw_ostream &OS, int32_t Type, const char *msg) {
83 debugWrite(OS.tell(), msg + formatv("[type: {0}]", valueTypeToString(Type)));
84 writeSleb128(OS, Type, nullptr);
85}
86
87void wasm::writeSig(raw_ostream &OS, const WasmSignature &Sig) {
88 writeSleb128(OS, WASM_TYPE_FUNC, "signature type");
89 writeUleb128(OS, Sig.ParamTypes.size(), "param count");
90 for (int32_t ParamType : Sig.ParamTypes) {
91 writeValueType(OS, ParamType, "param type");
92 }
93 if (Sig.ReturnType == WASM_TYPE_NORESULT) {
94 writeUleb128(OS, 0, "result count");
95 } else {
96 writeUleb128(OS, 1, "result count");
97 writeValueType(OS, Sig.ReturnType, "result type");
98 }
99}
100
101void wasm::writeInitExpr(raw_ostream &OS, const WasmInitExpr &InitExpr) {
102 writeU8(OS, InitExpr.Opcode, "opcode");
103 switch (InitExpr.Opcode) {
104 case WASM_OPCODE_I32_CONST:
105 writeSleb128(OS, InitExpr.Value.Int32, "literal (i32)");
106 break;
107 case WASM_OPCODE_I64_CONST:
108 writeSleb128(OS, InitExpr.Value.Int64, "literal (i64)");
109 break;
110 case WASM_OPCODE_GET_GLOBAL:
111 writeUleb128(OS, InitExpr.Value.Global, "literal (global index)");
112 break;
113 default:
114 fatal("unknown opcode in init expr: " + Twine(InitExpr.Opcode));
115 }
116 writeU8(OS, WASM_OPCODE_END, "opcode:end");
117}
118
119void wasm::writeLimits(raw_ostream &OS, const WasmLimits &Limits) {
120 writeUleb128(OS, Limits.Flags, "limits flags");
121 writeUleb128(OS, Limits.Initial, "limits initial");
122 if (Limits.Flags & WASM_LIMITS_FLAG_HAS_MAX)
123 writeUleb128(OS, Limits.Maximum, "limits max");
124}
125
126void wasm::writeGlobal(raw_ostream &OS, const WasmGlobal &Global) {
127 writeValueType(OS, Global.Type, "global type");
128 writeUleb128(OS, Global.Mutable, "global mutable");
129 writeInitExpr(OS, Global.InitExpr);
130}
131
132void wasm::writeImport(raw_ostream &OS, const WasmImport &Import) {
133 writeStr(OS, Import.Module, "import module name");
134 writeStr(OS, Import.Field, "import field name");
135 writeU8(OS, Import.Kind, "import kind");
136 switch (Import.Kind) {
137 case WASM_EXTERNAL_FUNCTION:
138 writeUleb128(OS, Import.SigIndex, "import sig index");
139 break;
140 case WASM_EXTERNAL_GLOBAL:
141 writeValueType(OS, Import.Global.Type, "import global type");
142 writeUleb128(OS, Import.Global.Mutable, "import global mutable");
143 break;
144 case WASM_EXTERNAL_MEMORY:
145 writeLimits(OS, Import.Memory);
146 break;
147 default:
148 fatal("unsupported import type: " + Twine(Import.Kind));
149 }
150}
151
152void wasm::writeExport(raw_ostream &OS, const WasmExport &Export) {
153 writeStr(OS, Export.Name, "export name");
154 writeU8(OS, Export.Kind, "export kind");
155 switch (Export.Kind) {
156 case WASM_EXTERNAL_FUNCTION:
157 writeUleb128(OS, Export.Index, "function index");
158 break;
159 case WASM_EXTERNAL_GLOBAL:
160 writeUleb128(OS, Export.Index, "global index");
161 break;
162 case WASM_EXTERNAL_MEMORY:
163 writeUleb128(OS, Export.Index, "memory index");
164 break;
165 default:
166 fatal("unsupported export type: " + Twine(Export.Kind));
167 }
168}
169
170void wasm::writeReloc(raw_ostream &OS, const OutputRelocation &Reloc) {
171 writeUleb128(OS, Reloc.Reloc.Type, "reloc type");
172 writeUleb128(OS, Reloc.Reloc.Offset, "reloc offset");
173 writeUleb128(OS, Reloc.NewIndex, "reloc index");
174
175 switch (Reloc.Reloc.Type) {
176 case R_WEBASSEMBLY_MEMORY_ADDR_LEB:
177 case R_WEBASSEMBLY_MEMORY_ADDR_SLEB:
178 case R_WEBASSEMBLY_MEMORY_ADDR_I32:
179 writeUleb128(OS, Reloc.Reloc.Addend, "reloc addend");
180 break;
181 default:
182 break;
183 }
184}
185
186} // namespace lld
187
188std::string lld::toString(ValType Type) {
189 switch (Type) {
190 case ValType::I32:
191 return "I32";
192 case ValType::I64:
193 return "I64";
194 case ValType::F32:
195 return "F32";
196 case ValType::F64:
197 return "F64";
198 }
199 llvm_unreachable("Invalid wasm::ValType");
200}
201
202std::string lld::toString(const WasmSignature &Sig) {
203 SmallString<128> S("(");
204 for (uint32_t Type : Sig.ParamTypes) {
205 if (S.size() != 1)
206 S += ", ";
207 S += toString(static_cast<ValType>(Type));
208 }
209 S += ") -> ";
210 if (Sig.ReturnType == WASM_TYPE_NORESULT)
211 S += "void";
212 else
213 S += toString(static_cast<ValType>(Sig.ReturnType));
214 return S.str();
215}
deps/lld/wasm/WriterUtils.h created+78
...@@ -0,0 +1,78 @@
1//===- WriterUtils.h --------------------------------------------*- C++ -*-===//
2//
3// The LLVM Linker
4//
5// This file is distributed under the University of Illinois Open Source
6// License. See LICENSE.TXT for details.
7//
8//===----------------------------------------------------------------------===//
9
10#ifndef LLD_WASM_WRITERUTILS_H
11#define LLD_WASM_WRITERUTILS_H
12
13#include "llvm/ADT/Twine.h"
14#include "llvm/Object/Wasm.h"
15#include "llvm/Support/raw_ostream.h"
16
17using llvm::raw_ostream;
18
19// Needed for WasmSignatureDenseMapInfo
20inline bool operator==(const llvm::wasm::WasmSignature &LHS,
21 const llvm::wasm::WasmSignature &RHS) {
22 return LHS.ReturnType == RHS.ReturnType && LHS.ParamTypes == RHS.ParamTypes;
23}
24
25inline bool operator!=(const llvm::wasm::WasmSignature &LHS,
26 const llvm::wasm::WasmSignature &RHS) {
27 return !(LHS == RHS);
28}
29
30namespace lld {
31namespace wasm {
32
33struct OutputRelocation {
34 llvm::wasm::WasmRelocation Reloc;
35 uint32_t NewIndex;
36 uint32_t Value;
37};
38
39void debugWrite(uint64_t offset, llvm::Twine msg);
40
41void writeUleb128(raw_ostream &OS, uint32_t Number, const char *msg);
42
43void writeSleb128(raw_ostream &OS, int32_t Number, const char *msg);
44
45void writeBytes(raw_ostream &OS, const char *bytes, size_t count,
46 const char *msg = nullptr);
47
48void writeStr(raw_ostream &OS, const llvm::StringRef String,
49 const char *msg = nullptr);
50
51void writeU8(raw_ostream &OS, uint8_t byte, const char *msg);
52
53void writeU32(raw_ostream &OS, uint32_t Number, const char *msg);
54
55void writeValueType(raw_ostream &OS, int32_t Type, const char *msg);
56
57void writeSig(raw_ostream &OS, const llvm::wasm::WasmSignature &Sig);
58
59void writeInitExpr(raw_ostream &OS, const llvm::wasm::WasmInitExpr &InitExpr);
60
61void writeLimits(raw_ostream &OS, const llvm::wasm::WasmLimits &Limits);
62
63void writeGlobal(raw_ostream &OS, const llvm::wasm::WasmGlobal &Global);
64
65void writeImport(raw_ostream &OS, const llvm::wasm::WasmImport &Import);
66
67void writeExport(raw_ostream &OS, const llvm::wasm::WasmExport &Export);
68
69void writeReloc(raw_ostream &OS, const OutputRelocation &Reloc);
70
71} // namespace wasm
72
73std::string toString(const llvm::wasm::ValType Type);
74std::string toString(const llvm::wasm::WasmSignature &Sig);
75
76} // namespace lld
77
78#endif // LLD_WASM_WRITERUTILS_H