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test/link/macho: test setting correct weak* flags in the header

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This commit is contained in:
Jakub Konka 2024-01-13 23:56:07 +01:00
parent 5142d92c51
commit 9533628ca0
1 changed files with 90 additions and 0 deletions
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90
test/link/macho.zig
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@ -10,6 +10,7 @@ pub fn testAll(b: *Build, build_opts: BuildOptions) *Step {
macho_step.dependOn(testDeadStrip(b, .{ .target = default_target }));
macho_step.dependOn(testEntryPointDylib(b, .{ .target = default_target }));
macho_step.dependOn(testHeaderWeakFlags(b, .{ .target = default_target }));
macho_step.dependOn(testHelloC(b, .{ .target = default_target }));
macho_step.dependOn(testHelloZig(b, .{ .target = default_target }));
macho_step.dependOn(testLargeBss(b, .{ .target = default_target }));
@ -165,6 +166,94 @@ fn testEntryPointDylib(b: *Build, opts: Options) *Step {
return test_step;
}
// Adapted from https://github.com/llvm/llvm-project/blob/main/lld/test/MachO/weak-header-flags.s
fn testHeaderWeakFlags(b: *Build, opts: Options) *Step {
const test_step = addTestStep(b, "macho-header-weak-flags", opts);
const obj1 = addObject(b, opts, .{ .name = "a", .asm_source_bytes =
\\.globl _x
\\.weak_definition _x
\\_x:
\\ ret
});
const lib = addSharedLibrary(b, opts, .{ .name = "a" });
lib.addObject(obj1);
{
const exe = addExecutable(b, opts, .{ .name = "main1", .c_source_bytes = "int main() { return 0; }" });
exe.addObject(obj1);
const check = exe.checkObject();
check.checkInHeaders();
check.checkExact("header");
check.checkContains("WEAK_DEFINES");
check.checkInHeaders();
check.checkExact("header");
check.checkContains("BINDS_TO_WEAK");
check.checkInExports();
check.checkExtract("[WEAK] {vmaddr} _x");
test_step.dependOn(&check.step);
}
{
const obj = addObject(b, opts, .{ .name = "b" });
switch (opts.target.result.cpu.arch) {
.aarch64 => addAsmSourceBytes(obj,
\\.globl _main
\\_main:
\\ bl _x
\\ ret
),
.x86_64 => addAsmSourceBytes(obj,
\\.globl _main
\\_main:
\\ callq _x
\\ ret
),
else => unreachable,
}
const exe = addExecutable(b, opts, .{ .name = "main2" });
exe.linkLibrary(lib);
exe.addObject(obj);
const check = exe.checkObject();
check.checkInHeaders();
check.checkExact("header");
check.checkNotPresent("WEAK_DEFINES");
check.checkInHeaders();
check.checkExact("header");
check.checkContains("BINDS_TO_WEAK");
check.checkInExports();
check.checkNotPresent("[WEAK] {vmaddr} _x");
test_step.dependOn(&check.step);
}
{
const exe = addExecutable(b, opts, .{ .name = "main3", .asm_source_bytes =
\\.globl _main, _x
\\_x:
\\
\\_main:
\\ ret
});
exe.linkLibrary(lib);
const check = exe.checkObject();
check.checkInHeaders();
check.checkExact("header");
check.checkNotPresent("WEAK_DEFINES");
check.checkInHeaders();
check.checkExact("header");
check.checkNotPresent("BINDS_TO_WEAK");
test_step.dependOn(&check.step);
}
return test_step;
}
fn testHelloC(b: *Build, opts: Options) *Step {
const test_step = addTestStep(b, "macho-hello-c", opts);
@ -436,6 +525,7 @@ fn addTestStep(b: *Build, comptime prefix: []const u8, opts: Options) *Step {
return link.addTestStep(b, "macho-" ++ prefix, opts);
}
const addAsmSourceBytes = link.addAsmSourceBytes;
const addCSourceBytes = link.addCSourceBytes;
const addRunArtifact = link.addRunArtifact;
const addObject = link.addObject;