Commit e4869eeac11eccdbb6cf4d8a4e60a272ca179d55 | zig

author	Luuk de Gram <luuk@degram.dev> 2022-12-31 15:29:02+01:00
committer	Luuk de Gram <luuk@degram.dev> 2023-01-02 18:36:17+01:00
log	e4869eeac11eccdbb6cf4d8a4e60a272ca179d55
tree	85cc01bb74a01fdbdc7167a0e73ce61f78606f0c
parent	9932372fae88a6dabdb3945d55556e373bd4bb45
signature	Commit is signed but in an unrecognized format.

test/link: linker tests for all export cases

Adds a linker test case for each possible export case. This means
one where no exports are done (i.e. no flags set), when the -dynamic
flag is set, and finally when --export=<value> flag(s) are set.

4 files changed, 55 insertions(+), 2 deletions(-)

test
- link.zig
- link
  - wasm
    bss
    build.zig
    export
    build.zig
    main.zig

test/link.zig+5

 @@ -42,6 +42,11 @@ fn addWasmCases(cases: *tests.StandaloneContext) void {
         .requires_stage2 = true,
     });
+    cases.addBuildFile("test/link/wasm/export/build.zig", .{
+        .build_modes = true,
+        .requires_stage2 = true,
+    });
     cases.addBuildFile("test/link/wasm/extern/build.zig", .{
         .build_modes = true,
         .requires_stage2 = true,

test/link/wasm/bss/build.zig+1-2

...	@@ -26,8 +26,7 @@ pub fn build(b: *Builder) void {	...	@@ -26,8 +26,7 @@ pub fn build(b: *Builder) void {
26	check_lib.checkNext("name memory"); // as per linker specification	26	check_lib.checkNext("name memory"); // as per linker specification
27		27
28	// since we are importing memory, ensure it's not exported	28	// since we are importing memory, ensure it's not exported
29	check_lib.checkStart("Section export");	29	check_lib.checkNotPresent("Section export");
30	check_lib.checkNext("entries 1"); // we're exporting function 'foo' so only 1 entry
31		30
32	// validate the name of the stack pointer	31	// validate the name of the stack pointer
33	check_lib.checkStart("Section custom");	32	check_lib.checkStart("Section custom");

test/link/wasm/export/build.zig created+48

...	@@ -0,0 +1,48 @@
1	const std = @import("std");
2
3	pub fn build(b: *std.build.Builder) void {
4	const mode = b.standardReleaseOptions();
5
6	const no_export = b.addSharedLibrary("no-export", "main.zig", .unversioned);
7	no_export.setTarget(.{ .cpu_arch = .wasm32, .os_tag = .freestanding });
8	no_export.setBuildMode(mode);
9	no_export.use_llvm = false;
10	no_export.use_lld = false;
11
12	const dynamic_export = b.addSharedLibrary("dynamic", "main.zig", .unversioned);
13	dynamic_export.setTarget(.{ .cpu_arch = .wasm32, .os_tag = .freestanding });
14	dynamic_export.setBuildMode(mode);
15	dynamic_export.rdynamic = true;
16	dynamic_export.use_llvm = false;
17	dynamic_export.use_lld = false;
18
19	const force_export = b.addSharedLibrary("force", "main.zig", .unversioned);
20	force_export.setTarget(.{ .cpu_arch = .wasm32, .os_tag = .freestanding });
21	force_export.setBuildMode(mode);
22	force_export.export_symbol_names = &.{"foo"};
23	force_export.use_llvm = false;
24	force_export.use_lld = false;
25
26	const check_no_export = no_export.checkObject(.wasm);
27	check_no_export.checkStart("Section export");
28	check_no_export.checkNext("entries 1");
29	check_no_export.checkNext("name memory");
30	check_no_export.checkNext("kind memory");
31
32	const check_dynamic_export = dynamic_export.checkObject(.wasm);
33	check_dynamic_export.checkStart("Section export");
34	check_dynamic_export.checkNext("entries 2");
35	check_dynamic_export.checkNext("name foo");
36	check_dynamic_export.checkNext("kind function");
37
38	const check_force_export = force_export.checkObject(.wasm);
39	check_force_export.checkStart("Section export");
40	check_force_export.checkNext("entries 2");
41	check_force_export.checkNext("name foo");
42	check_force_export.checkNext("kind function");
43
44	const test_step = b.step("test", "Run linker test");
45	test_step.dependOn(&check_no_export.step);
46	test_step.dependOn(&check_dynamic_export.step);
47	test_step.dependOn(&check_force_export.step);
48	}

test/link/wasm/export/main.zig created+1

...	@@ -0,0 +1 @@
1	export fn foo() void {}