Commit 675b1a15a17d796fa9e48902047c3c7b350a1d7e | zig

author	Alex Rønne Petersen <alex@alexrp.com> 2025-07-31 22:08:36+02:00
committer	Alex Rønne Petersen <alex@alexrp.com> 2025-08-01 09:00:27+02:00
log	675b1a15a17d796fa9e48902047c3c7b350a1d7e
tree	fc3cd1f7ad755033f6c9e0f57c61b784866703af
parent	1804251dfb5b1a5699371735aac138b3a2d6c3f6
signature	Signed by SSH key SHA256:7B/LJ7bpR1eX8aCXSr4mtd5M45VMPKcx9zY8e95b5QM

glibc: update crt0 code to 2.42

21 files changed, 165 insertions(+), 193 deletions(-)

lib
- libc
  - glibc
    elf
    elf.h
    include
    elf.h
    libc-symbols.h
    stdlib.h
    io
    fcntl.h
    posix
    bits
    types.h
    stdlib
    stdlib.h
    sysdeps
    aarch64
    nptl
    bits
    pthreadtypes-arch.h
    start-2.33.S
    start.S
    sysdep.h
    generic
    sysdep.h
    htl
    libc-lockP.h
    mach
    sysdep.h
    nptl
    pthread.h
    sparc
    sparc32
    start.S
    sparc64
    start.S
    unix
    sysv
    linux
    aarch64
    sysdep.h
    kernel-features.h
    riscv
    sysdep.h
    x86
    sysdep.h

lib/libc/glibc/elf/elf.h+11-22

...	...	@@ -837,12 +837,15 @@ typedef struct
837	837	#define NT_ARM_ZT 0x40d /* ARM SME ZT registers. */
838	838	#define NT_ARM_FPMR 0x40e /* ARM floating point mode register. */
839	839	#define NT_ARM_POE 0x40f /* ARM POE registers. */
	840	#define NT_ARM_GCS 0x410 /* ARM GCS state. */
840	841	#define NT_VMCOREDD 0x700 /* Vmcore Device Dump Note. */
841	842	#define NT_MIPS_DSP 0x800 /* MIPS DSP ASE registers. */
842	843	#define NT_MIPS_FP_MODE 0x801 /* MIPS floating-point mode. */
843	844	#define NT_MIPS_MSA 0x802 /* MIPS SIMD registers. */
844	845	#define NT_RISCV_CSR 0x900 /* RISC-V Control and Status Registers */
845	846	#define NT_RISCV_VECTOR 0x901 /* RISC-V vector registers */
	847	#define NT_RISCV_TAGGED_ADDR_CTRL 0x902 /* RISC-V tagged
	848	address control */
846	849	#define NT_LOONGARCH_CPUCFG 0xa00 /* LoongArch CPU config registers. */
847	850	#define NT_LOONGARCH_CSR 0xa01 /* LoongArch control and
848	851	status registers. */
...	...	@@ -2906,19 +2909,6 @@ enum
2906	2909
2907	2910	#define R_AARCH64_NONE 0 /* No relocation. */
2908	2911
2909		/* ILP32 AArch64 relocs. */
2910		#define R_AARCH64_P32_ABS32 1 /* Direct 32 bit. */
2911		#define R_AARCH64_P32_COPY 180 /* Copy symbol at runtime. */
2912		#define R_AARCH64_P32_GLOB_DAT 181 /* Create GOT entry. */
2913		#define R_AARCH64_P32_JUMP_SLOT 182 /* Create PLT entry. */
2914		#define R_AARCH64_P32_RELATIVE 183 /* Adjust by program base. */
2915		#define R_AARCH64_P32_TLS_DTPMOD 184 /* Module number, 32 bit. */
2916		#define R_AARCH64_P32_TLS_DTPREL 185 /* Module-relative offset, 32 bit. */
2917		#define R_AARCH64_P32_TLS_TPREL 186 /* TP-relative offset, 32 bit. */
2918		#define R_AARCH64_P32_TLSDESC 187 /* TLS Descriptor. */
2919		#define R_AARCH64_P32_IRELATIVE 188 /* STT_GNU_IFUNC relocation. */
2920
2921		/* LP64 AArch64 relocs. */
2922	2912	#define R_AARCH64_ABS64 257 /* Direct 64 bit. */
2923	2913	#define R_AARCH64_ABS32 258 /* Direct 32 bit. */
2924	2914	#define R_AARCH64_ABS16 259 /* Direct 16-bit. */
...	...	@@ -4091,6 +4081,7 @@ enum
4091	4081	#define R_RISCV_TLS_DTPREL64 9
4092	4082	#define R_RISCV_TLS_TPREL32 10
4093	4083	#define R_RISCV_TLS_TPREL64 11
	4084	#define R_RISCV_TLSDESC 12
4094	4085	#define R_RISCV_BRANCH 16
4095	4086	#define R_RISCV_JAL 17
4096	4087	#define R_RISCV_CALL 18
...	...	@@ -4116,16 +4107,10 @@ enum
4116	4107	#define R_RISCV_SUB16 38
4117	4108	#define R_RISCV_SUB32 39
4118	4109	#define R_RISCV_SUB64 40
4119		#define R_RISCV_GNU_VTINHERIT 41
4120		#define R_RISCV_GNU_VTENTRY 42
	4110	#define R_RISCV_GOT32_PCREL 41
4121	4111	#define R_RISCV_ALIGN 43
4122	4112	#define R_RISCV_RVC_BRANCH 44
4123	4113	#define R_RISCV_RVC_JUMP 45
4124		#define R_RISCV_RVC_LUI 46
4125		#define R_RISCV_GPREL_I 47
4126		#define R_RISCV_GPREL_S 48
4127		#define R_RISCV_TPREL_I 49
4128		#define R_RISCV_TPREL_S 50
4129	4114	#define R_RISCV_RELAX 51
4130	4115	#define R_RISCV_SUB6 52
4131	4116	#define R_RISCV_SET6 53
...	...	@@ -4137,8 +4122,12 @@ enum
4137	4122	#define R_RISCV_PLT32 59
4138	4123	#define R_RISCV_SET_ULEB128 60
4139	4124	#define R_RISCV_SUB_ULEB128 61
	4125	#define R_RISCV_TLSDESC_HI20 62
	4126	#define R_RISCV_TLSDESC_LOAD_LO12 63
	4127	#define R_RISCV_TLSDESC_ADD_LO12 64
	4128	#define R_RISCV_TLSDESC_CALL 65
4140	4129
4141		#define R_RISCV_NUM 62
	4130	#define R_RISCV_NUM 66
4142	4131
4143	4132	/* RISC-V specific values for the st_other field. */
4144	4133	#define STO_RISCV_VARIANT_CC 0x80 /* Function uses variant calling
...	...	@@ -4147,7 +4136,7 @@ enum
4147	4136	/* RISC-V specific values for the sh_type field. */
4148	4137	#define SHT_RISCV_ATTRIBUTES (SHT_LOPROC + 3)
4149	4138
4150		/* RISC-V specific values for the p_type field. */
	4139	/* RISC-V specific values for the p_type field (deprecated). */
4151	4140	#define PT_RISCV_ATTRIBUTES (PT_LOPROC + 3)
4152	4141
4153	4142	/* RISC-V specific values for the d_tag field. */

lib/libc/glibc/include/elf.h+13

...	...	@@ -15,6 +15,19 @@
15	15	# define ELF_NOTE_NEXT_OFFSET(namesz, descsz, align) \
16	16	ALIGN_UP (ELF_NOTE_DESC_OFFSET ((namesz), (align)) + (descsz), (align))
17	17
	18	# ifdef HIDDEN_VAR_NEEDS_DYNAMIC_RELOC
	19	# define DL_ADDRESS_WITHOUT_RELOC(expr) (expr)
	20	# else
	21	/* Evaluate EXPR without run-time relocation for it. EXPR should be an
	22	array, an address of an object, or a string literal. */
	23	# define DL_ADDRESS_WITHOUT_RELOC(expr) \
	24	({ \
	25	__auto_type _result = (expr); \
	26	asm ("" : "+r" (_result)); \
	27	_result; \
	28	})
	29	# endif
	30
18	31	/* Some information which is not meant for the public and therefore not
19	32	in <elf.h>. */
20	33	# include <dl-dtprocnum.h>

lib/libc/glibc/include/libc-symbols.h+4-4

...	...	@@ -155,7 +155,7 @@
155	155	extern __typeof (name) aliasname __attribute__ ((weak, alias (#name))) \
156	156	__attribute_copy__ (name);
157	157
158		/* Zig patch. weak_hidden_alias was removed from glibc v2.36 (v2.37?), Zig
	158	/* zig patch: weak_hidden_alias was removed from glibc v2.36 (v2.37?), Zig
159	159	needs it for the v2.32 and earlier {f,l,}stat wrappers, so only include
160	160	in this header for 2.32 and earlier. */
161	161	#if (__GLIBC__ == 2 && __GLIBC_MINOR__ <= 32) \|\| __GLIBC__ < 2
...	...	@@ -220,7 +220,7 @@
220	220	#define __make_section_unallocated(section_string) \
221	221	asm (".section " section_string "\n\t.previous");
222	222
223		/* Tacking on "\n\t#" to the section name makes gcc put it's bogus
	223	/* Tacking on "\n\t#" to the section name makes gcc put its bogus
224	224	section attributes on what looks like a comment to the assembler. */
225	225	#ifdef HAVE_SECTION_QUOTES
226	226	# define __sec_comment "\"\n\t#\""
...	...	@@ -280,7 +280,7 @@ for linking")
280	280
281	281
282	282	/*
283
	283
284	284	*/
285	285
286	286	#ifdef HAVE_GNU_RETAIN
...	...	@@ -807,7 +807,7 @@ for linking")
807	807	#define libm_ifunc_init()
808	808	#define libm_ifunc(name, expr) \
809	809	__ifunc (name, name, expr, void, libm_ifunc_init)
810
	810
811	811	/* These macros facilitate sharing source files with gnulib.
812	812
813	813	They are here instead of sys/cdefs.h because they should not be

lib/libc/glibc/include/stdlib.h+15

...	...	@@ -368,6 +368,21 @@ struct abort_msg_s
368	368	extern struct abort_msg_s *__abort_msg;
369	369	libc_hidden_proto (__abort_msg)
370	370
	371	enum readonly_error_type
	372	{
	373	readonly_noerror,
	374	readonly_area_writable,
	375	readonly_procfs_inaccessible,
	376	readonly_procfs_open_fail,
	377	};
	378
	379	extern enum readonly_error_type __readonly_area (const void *ptr,
	380	size_t size)
	381	attribute_hidden;
	382	extern enum readonly_error_type __readonly_area_fallback (const void *ptr,
	383	size_t size)
	384	attribute_hidden;
	385
371	386	# if IS_IN (rtld)
372	387	extern __typeof (unsetenv) unsetenv attribute_hidden;
373	388	extern __typeof (__strtoul_internal) __strtoul_internal attribute_hidden;

lib/libc/glibc/io/fcntl.h+5-4

...	...	@@ -168,7 +168,7 @@ typedef __pid_t pid_t;
168	168	#endif
169	169
170	170
171		/* fcntl was a simple symbol until glibc 2.27 inclusive. glibc 2.28 onwards
	171	/* zig patch: fcntl was a simple symbol until glibc 2.27 inclusive. glibc 2.28 onwards
172	172	* re-defines it to fcntl64 (via #define) if _FILE_OFFSET_BITS == 64. */
173	173	#if (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 28) \|\| __GLIBC__ > 2
174	174	/* Do the file control operation described by CMD on FD.
...	...	@@ -288,16 +288,17 @@ extern int creat64 (const char *__file, mode_t __mode) __nonnull ((1));
288	288	# define F_TEST 3 /* Test a region for other processes locks. */
289	289
290	290	# ifndef __USE_FILE_OFFSET64
291		extern int lockf (int __fd, int __cmd, off_t __len);
	291	extern int lockf (int __fd, int __cmd, off_t __len) __wur;
292	292	# else
293	293	# ifdef __REDIRECT
294		extern int __REDIRECT (lockf, (int __fd, int __cmd, __off64_t __len), lockf64);
	294	extern int __REDIRECT (lockf, (int __fd, int __cmd, __off64_t __len),
	295	lockf64) __wur;
295	296	# else
296	297	# define lockf lockf64
297	298	# endif
298	299	# endif
299	300	# ifdef __USE_LARGEFILE64
300		extern int lockf64 (int __fd, int __cmd, off64_t __len);
	301	extern int lockf64 (int __fd, int __cmd, off64_t __len) __wur;
301	302	# endif
302	303	#endif
303	304

lib/libc/glibc/posix/bits/types.h+1-1

...	...	@@ -217,7 +217,7 @@ typedef int __sig_atomic_t;
217	217	/* Seconds since the Epoch, visible to user code when time_t is too
218	218	narrow only for consistency with the old way of widening too-narrow
219	219	types. User code should never use __time64_t. */
220		/* Zig patch: Don't check __LIBC here because it breaks fstatat.c on x86. */
	220	/* zig patch: Don't check __LIBC here because it breaks fstatat.c on x86. */
221	221	#if __TIMESIZE == 64
222	222	# define __time64_t __time_t
223	223	#elif __TIMESIZE != 64

lib/libc/glibc/stdlib/stdlib.h+6

...	...	@@ -985,6 +985,12 @@ __extension__ extern long long int llabs (long long int __x)
985	985	__THROW __attribute__ ((__const__)) __wur;
986	986	#endif
987	987
	988	#if __GLIBC_USE (ISOC2Y)
	989	extern unsigned int uabs (int __x) __THROW __attribute__ ((__const__)) __wur;
	990	extern unsigned long int ulabs (long int __x) __THROW __attribute__ ((__const__)) __wur;
	991	__extension__ extern unsigned long long int ullabs (long long int __x)
	992	__THROW __attribute__ ((__const__)) __wur;
	993	#endif
988	994
989	995	/* Return the `div_t', `ldiv_t' or `lldiv_t' representation
990	996	of the value of NUMER over DENOM. */

lib/libc/glibc/sysdeps/aarch64/nptl/bits/pthreadtypes-arch.h+7-17

...	...	@@ -21,23 +21,13 @@
21	21
22	22	#include <bits/endian.h>
23	23
24		#ifdef __ILP32__
25		# define __SIZEOF_PTHREAD_ATTR_T 32
26		# define __SIZEOF_PTHREAD_MUTEX_T 32
27		# define __SIZEOF_PTHREAD_MUTEXATTR_T 4
28		# define __SIZEOF_PTHREAD_CONDATTR_T 4
29		# define __SIZEOF_PTHREAD_RWLOCK_T 48
30		# define __SIZEOF_PTHREAD_BARRIER_T 20
31		# define __SIZEOF_PTHREAD_BARRIERATTR_T 4
32		#else
33		# define __SIZEOF_PTHREAD_ATTR_T 64
34		# define __SIZEOF_PTHREAD_MUTEX_T 48
35		# define __SIZEOF_PTHREAD_MUTEXATTR_T 8
36		# define __SIZEOF_PTHREAD_CONDATTR_T 8
37		# define __SIZEOF_PTHREAD_RWLOCK_T 56
38		# define __SIZEOF_PTHREAD_BARRIER_T 32
39		# define __SIZEOF_PTHREAD_BARRIERATTR_T 8
40		#endif
	24	#define __SIZEOF_PTHREAD_ATTR_T 64
	25	#define __SIZEOF_PTHREAD_MUTEX_T 48
	26	#define __SIZEOF_PTHREAD_MUTEXATTR_T 8
	27	#define __SIZEOF_PTHREAD_CONDATTR_T 8
	28	#define __SIZEOF_PTHREAD_RWLOCK_T 56
	29	#define __SIZEOF_PTHREAD_BARRIER_T 32
	30	#define __SIZEOF_PTHREAD_BARRIERATTR_T 8
41	31	#define __SIZEOF_PTHREAD_COND_T 48
42	32	#define __SIZEOF_PTHREAD_RWLOCKATTR_T 8
43	33

lib/libc/glibc/sysdeps/aarch64/start-2.33.S+17-8

...	...	@@ -54,8 +54,8 @@ _start:
54	54	mov x5, x0
55	55
56	56	/* Load argc and a pointer to argv */
57		ldr PTR_REG (1), [sp, #0]
58		add x2, sp, #PTR_SIZE
	57	ldr x1, [sp, #0]
	58	add x2, sp, 8
59	59
60	60	/* Setup stack limit in argument register */
61	61	mov x6, sp
...	...	@@ -63,13 +63,13 @@ _start:
63	63	#ifdef PIC
64	64	# ifdef SHARED
65	65	adrp x0, :got:main
66		ldr PTR_REG (0), [x0, #:got_lo12:main]
	66	ldr x0, [x0, #:got_lo12:main]
67	67
68	68	adrp x3, :got:__libc_csu_init
69		ldr PTR_REG (3), [x3, #:got_lo12:__libc_csu_init]
	69	ldr x3, [x3, #:got_lo12:__libc_csu_init]
70	70
71	71	adrp x4, :got:__libc_csu_fini
72		ldr PTR_REG (4), [x4, #:got_lo12:__libc_csu_fini]
	72	ldr x4, [x4, #:got_lo12:__libc_csu_fini]
73	73	# else
74	74	adrp x0, __wrap_main
75	75	add x0, x0, :lo12:__wrap_main
...	...	@@ -80,9 +80,18 @@ _start:
80	80	# endif
81	81	#else
82	82	/* Set up the other arguments in registers */
83		MOVL (0, main)
84		MOVL (3, __libc_csu_init)
85		MOVL (4, __libc_csu_fini)
	83	movz x0, :abs_g3:main
	84	movk x0, :abs_g2_nc:main
	85	movk x0, :abs_g1_nc:main
	86	movk x0, :abs_g0_nc:main
	87	movz x3, :abs_g3:__libc_csu_init
	88	movk x3, :abs_g2_nc:__libc_csu_init
	89	movk x3, :abs_g1_nc:__libc_csu_init
	90	movk x3, :abs_g0_nc:__libc_csu_init
	91	movz x4, :abs_g3:__libc_csu_fini
	92	movk x4, :abs_g2_nc:__libc_csu_fini
	93	movk x4, :abs_g1_nc:__libc_csu_fini
	94	movk x4, :abs_g0_nc:__libc_csu_fini
86	95	#endif
87	96
88	97	/* __libc_start_main (main, argc, argv, init, fini, rtld_fini,

lib/libc/glibc/sysdeps/aarch64/start.S+8-6

...	...	@@ -70,8 +70,8 @@ ENTRY(_start)
70	70	mov x5, x0
71	71
72	72	/* Load argc and a pointer to argv */
73		ldr PTR_REG (1), [sp, #0]
74		add x2, sp, #PTR_SIZE
	73	ldr x1, [sp, #0]
	74	add x2, sp, 8
75	75
76	76	/* Setup stack limit in argument register */
77	77	mov x6, sp
...	...	@@ -79,14 +79,16 @@ ENTRY(_start)
79	79	#ifdef PIC
80	80	# ifdef SHARED
81	81	adrp x0, :got:main
82		ldr PTR_REG (0), [x0, #:got_lo12:main]
	82	ldr x0, [x0, #:got_lo12:main]
83	83	# else
84	84	adrp x0, __wrap_main
85	85	add x0, x0, :lo12:__wrap_main
86	86	# endif
87	87	#else
88		/* Set up the other arguments in registers */
89		MOVL (0, main)
	88	movz x0, :abs_g3:main
	89	movk x0, :abs_g2_nc:main
	90	movk x0, :abs_g1_nc:main
	91	movk x0, :abs_g0_nc:main
90	92	#endif
91	93	mov x3, #0 /* Used to be init. */
92	94	mov x4, #0 /* Used to be fini. */
...	...	@@ -106,7 +108,7 @@ ENTRY(_start)
106	108	because crt1.o and rcrt1.o share code and the later must avoid the
107	109	use of GOT relocations before __libc_start_main is called. */
108	110	__wrap_main:
109		BTI_C
	111	bti c
110	112	b main
111	113	#endif
112	114	END(_start)

lib/libc/glibc/sysdeps/aarch64/sysdep.h+6-81

...	...	@@ -21,59 +21,15 @@
21	21
22	22	#include <sysdeps/generic/sysdep.h>
23	23
24		#ifdef __LP64__
25		# define AARCH64_R(NAME) R_AARCH64_ ## NAME
26		# define PTR_REG(n) x##n
27		# define PTR_LOG_SIZE 3
28		# define PTR_ARG(n)
29		# define SIZE_ARG(n)
30		#else
31		# define AARCH64_R(NAME) R_AARCH64_P32_ ## NAME
32		# define PTR_REG(n) w##n
33		# define PTR_LOG_SIZE 2
34		# define PTR_ARG(n) mov w##n, w##n
35		# define SIZE_ARG(n) mov w##n, w##n
36		#endif
37
38		#define PTR_SIZE (1<<PTR_LOG_SIZE)
39
40		#ifndef __ASSEMBLER__
41		/* Strip pointer authentication code from pointer p. */
42		static inline void *
43		strip_pac (void *p)
44		{
45		register void *ra asm ("x30") = (p);
46		asm ("hint 7 // xpaclri" : "+r"(ra));
47		return ra;
48		}
49
50		/* This is needed when glibc is built with -mbranch-protection=pac-ret
51		with a gcc that is affected by PR target/94891. */
52		# if HAVE_AARCH64_PAC_RET
53		# undef RETURN_ADDRESS
54		# define RETURN_ADDRESS(n) strip_pac (__builtin_return_address (n))
55		# endif
56		#endif
57
58	24	#ifdef __ASSEMBLER__
59	25
	26	/* CFI directive for return address. */
	27	#define cfi_negate_ra_state .cfi_negate_ra_state
	28
60	29	/* Syntactic details of assembler. */
61	30
62	31	#define ASM_SIZE_DIRECTIVE(name) .size name,.-name
63	32
64		/* Branch Target Identitication support. */
65		#if HAVE_AARCH64_BTI
66		# define BTI_C hint 34
67		# define BTI_J hint 36
68		#else
69		# define BTI_C nop
70		# define BTI_J nop
71		#endif
72
73		/* Return address signing support (pac-ret). */
74		#define PACIASP hint 25
75		#define AUTIASP hint 29
76
77	33	/* Guarded Control Stack support. */
78	34	#define CHKFEAT_X16 hint 40
79	35	#define MRS_GCSPR(x) mrs x, s3_3_c2_c5_1
...	...	@@ -103,11 +59,7 @@ strip_pac (void *p)
103	59
104	60	/* Add GNU property note with the supported features to all asm code
105	61	where sysdep.h is included. */
106		#if HAVE_AARCH64_BTI && HAVE_AARCH64_PAC_RET
107	62	GNU_PROPERTY (FEATURE_1_AND, FEATURE_1_BTI\|FEATURE_1_PAC\|FEATURE_1_GCS)
108		#elif HAVE_AARCH64_BTI
109		GNU_PROPERTY (FEATURE_1_AND, FEATURE_1_BTI\|FEATURE_1_GCS)
110		#endif
111	63
112	64	/* Define an entry point visible from C. */
113	65	#define ENTRY(name) \
...	...	@@ -116,7 +68,7 @@ GNU_PROPERTY (FEATURE_1_AND, FEATURE_1_BTI\|FEATURE_1_GCS)
116	68	.p2align 6; \
117	69	C_LABEL(name) \
118	70	cfi_startproc; \
119		BTI_C; \
	71	bti c; \
120	72	CALL_MCOUNT
121	73
122	74	/* Define an entry point visible from C. */
...	...	@@ -126,7 +78,7 @@ GNU_PROPERTY (FEATURE_1_AND, FEATURE_1_BTI\|FEATURE_1_GCS)
126	78	.p2align align; \
127	79	C_LABEL(name) \
128	80	cfi_startproc; \
129		BTI_C; \
	81	bti c; \
130	82	CALL_MCOUNT
131	83
132	84	/* Define an entry point visible from C with a specified alignment and
...	...	@@ -143,7 +95,7 @@ GNU_PROPERTY (FEATURE_1_AND, FEATURE_1_BTI\|FEATURE_1_GCS)
143	95	.endr; \
144	96	C_LABEL(name) \
145	97	cfi_startproc; \
146		BTI_C; \
	98	bti c; \
147	99	CALL_MCOUNT
148	100
149	101	#undef END
...	...	@@ -195,33 +147,6 @@ GNU_PROPERTY (FEATURE_1_AND, FEATURE_1_BTI\|FEATURE_1_GCS)
195	147	# define L(name) .L##name
196	148	#endif
197	149
198		/* Load or store to/from a pc-relative EXPR into/from R, using T.
199		Note R and T are register numbers and not register names. */
200		#define LDST_PCREL(OP, R, T, EXPR) \
201		adrp x##T, EXPR; \
202		OP PTR_REG (R), [x##T, #:lo12:EXPR]; \
203
204		/* Load or store to/from a got-relative EXPR into/from R, using T.
205		Note R and T are register numbers and not register names. */
206		#define LDST_GLOBAL(OP, R, T, EXPR) \
207		adrp x##T, :got:EXPR; \
208		ldr PTR_REG (T), [x##T, #:got_lo12:EXPR]; \
209		OP PTR_REG (R), [x##T];
210
211		/* Load an immediate into R.
212		Note R is a register number and not a register name. */
213		#ifdef __LP64__
214		# define MOVL(R, NAME) \
215		movz PTR_REG (R), #:abs_g3:NAME; \
216		movk PTR_REG (R), #:abs_g2_nc:NAME; \
217		movk PTR_REG (R), #:abs_g1_nc:NAME; \
218		movk PTR_REG (R), #:abs_g0_nc:NAME;
219		#else
220		# define MOVL(R, NAME) \
221		movz PTR_REG (R), #:abs_g1:NAME; \
222		movk PTR_REG (R), #:abs_g0_nc:NAME;
223		#endif
224
225	150	/* Since C identifiers are not normally prefixed with an underscore
226	151	on this system, the asm identifier `syscall_error' intrudes on the
227	152	C name space. Make sure we use an innocuous name. */

lib/libc/glibc/sysdeps/generic/sysdep.h+3

...	...	@@ -45,6 +45,7 @@
45	45	# define cfi_adjust_cfa_offset(off) .cfi_adjust_cfa_offset off
46	46	# define cfi_offset(reg, off) .cfi_offset reg, off
47	47	# define cfi_rel_offset(reg, off) .cfi_rel_offset reg, off
	48	# define cfi_val_offset(reg, off) .cfi_val_offset reg, off
48	49	# define cfi_register(r1, r2) .cfi_register r1, r2
49	50	# define cfi_return_column(reg) .cfi_return_column reg
50	51	# define cfi_restore(reg) .cfi_restore reg
...	...	@@ -74,6 +75,8 @@
74	75	".cfi_offset " CFI_STRINGIFY(reg) "," CFI_STRINGIFY(off)
75	76	# define CFI_REL_OFFSET(reg, off) \
76	77	".cfi_rel_offset " CFI_STRINGIFY(reg) "," CFI_STRINGIFY(off)
	78	# define CFI_VAL_OFFSET(reg, off) \
	79	".cfi_val_offset " CFI_STRINGIFY(reg) "," CFI_STRINGIFY(off)
77	80	# define CFI_REGISTER(r1, r2) \
78	81	".cfi_register " CFI_STRINGIFY(r1) "," CFI_STRINGIFY(r2)
79	82	# define CFI_RETURN_COLUMN(reg) \

lib/libc/glibc/sysdeps/htl/libc-lockP.h+10-39

...	...	@@ -75,7 +75,6 @@
75	75
76	76	extern int __pthread_mutex_init (pthread_mutex_t *__mutex,
77	77	const pthread_mutexattr_t *__mutex_attr);
78
79	78	extern int __pthread_mutex_destroy (pthread_mutex_t *__mutex);
80	79	libc_hidden_proto (__pthread_mutex_destroy)
81	80
...	...	@@ -91,75 +90,47 @@ libc_hidden_proto (__pthread_mutexattr_init)
91	90	extern int __pthread_mutexattr_destroy (pthread_mutexattr_t *__attr);
92	91	libc_hidden_proto (__pthread_mutexattr_destroy)
93	92
94		extern int __pthread_mutexattr_settype (pthread_mutexattr_t *__attr,
95		int __kind);
96
97	93	extern int __pthread_rwlock_init (pthread_rwlock_t *__rwlock,
98	94	const pthread_rwlockattr_t *__attr);
	95	libc_hidden_proto (__pthread_rwlock_init)
99	96
100	97	extern int __pthread_rwlock_destroy (pthread_rwlock_t *__rwlock);
	98	libc_hidden_proto (__pthread_rwlock_destroy)
101	99
102	100	extern int __pthread_rwlock_rdlock (pthread_rwlock_t *__rwlock);
	101	libc_hidden_proto (__pthread_rwlock_rdlock)
103	102
104	103	extern int __pthread_rwlock_tryrdlock (pthread_rwlock_t *__rwlock);
	104	libc_hidden_proto (__pthread_rwlock_tryrdlock)
105	105
106	106	extern int __pthread_rwlock_wrlock (pthread_rwlock_t *__rwlock);
	107	libc_hidden_proto (__pthread_rwlock_wrlock)
107	108
108	109	extern int __pthread_rwlock_trywrlock (pthread_rwlock_t *__rwlock);
	110	libc_hidden_proto (__pthread_rwlock_trywrlock)
109	111
110	112	extern int __pthread_rwlock_unlock (pthread_rwlock_t *__rwlock);
	113	libc_hidden_proto (__pthread_rwlock_unlock)
111	114
112	115	extern int __pthread_once (pthread_once_t *__once_control,
113	116	void (*__init_routine) (void));
	117	libc_hidden_proto (__pthread_once);
114	118
115	119	extern int __pthread_atfork (void (*__prepare) (void),
116	120	void (*__parent) (void),
117	121	void (*__child) (void));
118	122
	123	extern int __pthread_setcancelstate (int state, int *oldstate);
	124	libc_hidden_proto (__pthread_setcancelstate)
119	125	/* Make the pthread functions weak so that we can elide them from
120	126	single-threaded processes. */
121	127	#if !defined(__NO_WEAK_PTHREAD_ALIASES) && !IS_IN (libpthread)
122	128	# ifdef weak_extern
123		weak_extern (__pthread_mutex_init)
124		weak_extern (__pthread_mutex_destroy)
125		weak_extern (__pthread_mutex_lock)
126		weak_extern (__pthread_mutex_trylock)
127		weak_extern (__pthread_mutex_unlock)
128		weak_extern (__pthread_mutexattr_settype)
129		weak_extern (__pthread_rwlock_init)
130		weak_extern (__pthread_rwlock_destroy)
131		weak_extern (__pthread_rwlock_rdlock)
132		weak_extern (__pthread_rwlock_tryrdlock)
133		weak_extern (__pthread_rwlock_wrlock)
134		weak_extern (__pthread_rwlock_trywrlock)
135		weak_extern (__pthread_rwlock_unlock)
136		weak_extern (__pthread_key_create)
137		weak_extern (__pthread_setspecific)
138		weak_extern (__pthread_getspecific)
139		weak_extern (__pthread_once)
140	129	weak_extern (__pthread_initialize)
141	130	weak_extern (__pthread_atfork)
142		weak_extern (__pthread_setcancelstate)
143	131	# else
144		# pragma weak __pthread_mutex_init
145		# pragma weak __pthread_mutex_destroy
146		# pragma weak __pthread_mutex_lock
147		# pragma weak __pthread_mutex_trylock
148		# pragma weak __pthread_mutex_unlock
149		# pragma weak __pthread_mutexattr_settype
150		# pragma weak __pthread_rwlock_destroy
151		# pragma weak __pthread_rwlock_rdlock
152		# pragma weak __pthread_rwlock_tryrdlock
153		# pragma weak __pthread_rwlock_wrlock
154		# pragma weak __pthread_rwlock_trywrlock
155		# pragma weak __pthread_rwlock_unlock
156		# pragma weak __pthread_key_create
157		# pragma weak __pthread_setspecific
158		# pragma weak __pthread_getspecific
159		# pragma weak __pthread_once
160	132	# pragma weak __pthread_initialize
161	133	# pragma weak __pthread_atfork
162		# pragma weak __pthread_setcancelstate
163	134	# endif
164	135	#endif
165	136

lib/libc/glibc/sysdeps/mach/sysdep.h+5

...	...	@@ -20,6 +20,11 @@
20	20	/* Get the Mach definitions of ENTRY and kernel_trap. */
21	21	#include <mach/machine/syscall_sw.h>
22	22
	23	/* This macro is defined in Mach system headers, but string functions use it
	24	with different definitions depending on whether being compiled for
	25	wide-characters or not. */
	26	#undef P2ALIGN
	27
23	28	/* The Mach definitions assume underscores should be prepended to
24	29	symbol names. Redefine them to do so only when appropriate. */
25	30	#undef EXT

lib/libc/glibc/sysdeps/nptl/pthread.h+5

...	...	@@ -1317,6 +1317,11 @@ extern int pthread_getcpuclockid (pthread_t __thread_id,
1317	1317	__THROW __nonnull ((2));
1318	1318	#endif
1319	1319
	1320	#ifdef __USE_GNU
	1321	/* Return the Linux TID for THREAD_ID. Returns -1 on failure. */
	1322	extern pid_t pthread_gettid_np (pthread_t __thread_id);
	1323	#endif
	1324
1320	1325
1321	1326	/* Install handlers to be called when a new process is created with FORK.
1322	1327	The PREPARE handler is called in the parent process just before performing

lib/libc/glibc/sysdeps/sparc/sparc32/start.S+8-3

...	...	@@ -35,6 +35,7 @@
35	35
36	36	#include <sysdep.h>
37	37
	38	#define FRAME_SIZE 104
38	39
39	40	.section ".text"
40	41	.align 4
...	...	@@ -48,12 +49,12 @@ _start:
48	49	/* Terminate the stack frame, and reserve space for functions to
49	50	drop their arguments. */
50	51	mov %g0, %fp
51		sub %sp, 6*4, %sp
	52	sub %sp, FRAME_SIZE, %sp
52	53
53	54	/* Extract the arguments and environment as encoded on the stack. The
54	55	argument info starts after one register window (16 words) past the SP. */
55		ld [%sp+22*4], %o1
56		add %sp, 23*4, %o2
	56	ld [%sp+168], %o1
	57	add %sp, 172, %o2
57	58
58	59	/* Load the addresses of the user entry points. */
59	60	#ifndef PIC
...	...	@@ -73,6 +74,10 @@ _start:
73	74	be NULL. */
74	75	mov %g1, %o5
75	76
	77	/* Provide the highest stack address to update the __libc_stack_end (used
	78	to enable executable stacks if required). */
	79	st %sp, [%sp+23*4]
	80
76	81	/* Let libc do the rest of the initialization, and call main. */
77	82	call __libc_start_main
78	83	nop

lib/libc/glibc/sysdeps/sparc/sparc64/start.S+4

...	...	@@ -74,6 +74,10 @@ _start:
74	74	be NULL. */
75	75	mov %g1, %o5
76	76
	77	/* Provide the highest stack address to update the __libc_stack_end (used
	78	to enable executable stacks if required). */
	79	stx %sp, [%sp+STACK_BIAS+22*8]
	80
77	81	/* Let libc do the rest of the initialization, and call main. */
78	82	call __libc_start_main
79	83	nop

lib/libc/glibc/sysdeps/unix/sysv/linux/aarch64/sysdep.h+2-7

...	...	@@ -152,13 +152,8 @@
152	152
153	153	#else /* not __ASSEMBLER__ */
154	154
155		# ifdef __LP64__
156		# define VDSO_NAME "LINUX_2.6.39"
157		# define VDSO_HASH 123718537
158		# else
159		# define VDSO_NAME "LINUX_4.9"
160		# define VDSO_HASH 61765625
161		# endif
	155	# define VDSO_NAME "LINUX_2.6.39"
	156	# define VDSO_HASH 123718537
162	157
163	158	/* List of system calls which are supported as vsyscalls. */
164	159	# define HAVE_CLOCK_GETRES64_VSYSCALL "__kernel_clock_getres"

lib/libc/glibc/sysdeps/unix/sysv/linux/kernel-features.h+4

...	...	@@ -54,6 +54,10 @@
54	54	configurations). */
55	55	#define __ASSUME_SET_ROBUST_LIST 1
56	56
	57	/* The termios2 interface was introduced across all architectures except
	58	Alpha in kernel 2.6.22. */
	59	#define __ASSUME_TERMIOS2 1
	60
57	61	/* Support for various CLOEXEC and NONBLOCK flags was added in
58	62	2.6.27. */
59	63	#define __ASSUME_IN_NONBLOCK 1

lib/libc/glibc/sysdeps/unix/sysv/linux/riscv/sysdep.h+2-1

...	...	@@ -145,11 +145,12 @@
145	145	# define HAVE_CLOCK_GETRES64_VSYSCALL "__vdso_clock_getres"
146	146	# define HAVE_CLOCK_GETTIME64_VSYSCALL "__vdso_clock_gettime"
147	147	# define HAVE_GETTIMEOFDAY_VSYSCALL "__vdso_gettimeofday"
	148	# define HAVE_GETRANDOM_VSYSCALL "__vdso_getrandom"
148	149	# else
149	150	# define VDSO_NAME "LINUX_5.4"
150	151	# define VDSO_HASH 61765876
151	152
152		/* RV32 does not support the gettime VDSO syscalls. */
	153	/* RV32 does not support the gettime and getrandom VDSO syscalls. */
153	154	# endif
154	155	# define HAVE_CLONE3_WRAPPER 1
155	156

lib/libc/glibc/sysdeps/x86/sysdep.h+29

...	...	@@ -102,6 +102,9 @@
102	102	\| (1 << X86_XSTATE_ZMM_ID) \
103	103	\| (1 << X86_XSTATE_APX_F_ID))
104	104
	105	/* The maximum supported xstate ID. */
	106	# define X86_XSTATE_MAX_ID X86_XSTATE_APX_F_ID
	107
105	108	/* AMX state mask. */
106	109	# define AMX_STATE_SAVE_MASK \
107	110	((1 << X86_XSTATE_TILECFG_ID) \| (1 << X86_XSTATE_TILEDATA_ID))
...	...	@@ -123,6 +126,9 @@
123	126	\| (1 << X86_XSTATE_K_ID) \
124	127	\| (1 << X86_XSTATE_ZMM_H_ID))
125	128
	129	/* The maximum supported xstate ID. */
	130	# define X86_XSTATE_MAX_ID X86_XSTATE_ZMM_H_ID
	131
126	132	/* States to be included in xsave_state_size. */
127	133	# define FULL_STATE_SAVE_MASK STATE_SAVE_MASK
128	134	#endif
...	...	@@ -177,6 +183,29 @@
177	183
178	184	#define atom_text_section .section ".text.atom", "ax"
179	185
	186	#ifndef DL_STACK_ALIGNMENT
	187	/* Due to GCC bug:
	188
	189	https://gcc.gnu.org/bugzilla/show_bug.cgi?id=58066
	190
	191	__tls_get_addr may be called with 8-byte/4-byte stack alignment.
	192	Although this bug has been fixed in GCC 4.9.4, 5.3 and 6, we can't
	193	assume that stack will be always aligned at 16 bytes. */
	194	# ifdef __x86_64__
	195	# define DL_STACK_ALIGNMENT 8
	196	# define MINIMUM_ALIGNMENT 16
	197	# else
	198	# define DL_STACK_ALIGNMENT 4
	199	# endif
	200	#endif
	201
	202	/* True if _dl_runtime_resolve/_dl_tlsdesc_dynamic should align stack for
	203	STATE_SAVE or align stack to MINIMUM_ALIGNMENT bytes before calling
	204	_dl_fixup/__tls_get_addr. */
	205	#define DL_RUNTIME_RESOLVE_REALIGN_STACK \
	206	(STATE_SAVE_ALIGNMENT > DL_STACK_ALIGNMENT \
	207	\|\| MINIMUM_ALIGNMENT > DL_STACK_ALIGNMENT)
	208
180	209	#endif /* __ASSEMBLER__ */
181	210
182	211	#endif /* _X86_SYSDEP_H */