test/link/macho: upgrade tls test

test/link.zig

@@ -163,10 +163,6 @@ pub const cases = [_]Case{
         .build_root = "test/link/macho/tbdv3",
         .import = @import("link/macho/tbdv3/build.zig"),
     },
-    .{
-        .build_root = "test/link/macho/tls",
-        .import = @import("link/macho/tls/build.zig"),
-    },
     .{
         .build_root = "test/link/macho/unwind_info",
         .import = @import("link/macho/unwind_info/build.zig"),

test/link/macho.zig

@@ -34,6 +34,7 @@ pub fn testAll(b: *Build, build_opts: BuildOptions) *Step {
     if (build_opts.has_symlinks_windows) {
         macho_step.dependOn(testNeededLibrary(b, .{ .target = default_target }));
         macho_step.dependOn(testWeakLibrary(b, .{ .target = default_target }));
+        macho_step.dependOn(testTls(b, .{ .target = default_target }));
         macho_step.dependOn(testTwoLevelNamespace(b, .{ .target = default_target }));
 
         // Tests requiring presence of macOS SDK in system path
@@ -673,6 +674,40 @@ fn testThunks(b: *Build, opts: Options) *Step {
     return test_step;
 }
 
+fn testTls(b: *Build, opts: Options) *Step {
+    const test_step = addTestStep(b, "macho-tls", opts);
+
+    const dylib = addSharedLibrary(b, opts, .{ .name = "a", .c_source_bytes = 
+    \\_Thread_local int a;
+    \\int getA() {
+    \\  return a;
+    \\}
+    });
+
+    const exe = addExecutable(b, opts, .{ .name = "main", .c_source_bytes = 
+    \\#include<stdio.h>
+    \\extern _Thread_local int a;
+    \\extern int getA();
+    \\int getA2() {
+    \\  return a;
+    \\}
+    \\int main() {
+    \\  a = 2;
+    \\  printf("%d %d %d", a, getA(), getA2());
+    \\  return 0;
+    \\}
+    });
+    exe.root_module.linkSystemLibrary("a", .{});
+    exe.addLibraryPath(dylib.getEmittedBinDirectory());
+    exe.addRPath(dylib.getEmittedBinDirectory());
+
+    const run = addRunArtifact(exe);
+    run.expectStdOutEqual("2 2 2");
+    test_step.dependOn(&run.step);
+
+    return test_step;
+}
+
 fn testTlsLargeTbss(b: *Build, opts: Options) *Step {
     const test_step = addTestStep(b, "macho-tls-large-tbss", opts);
 

test/link/macho/tls/a.c

@@ -1,5 +0,0 @@
-_Thread_local int a;
-
-int getA() {
-  return a;
-}

test/link/macho/tls/build.zig

@@ -1,39 +0,0 @@
-const std = @import("std");
-
-pub const requires_symlinks = true;
-
-pub fn build(b: *std.Build) void {
-    const test_step = b.step("test", "Test it");
-    b.default_step = test_step;
-
-    add(b, test_step, .Debug);
-    add(b, test_step, .ReleaseFast);
-    add(b, test_step, .ReleaseSmall);
-    add(b, test_step, .ReleaseSafe);
-}
-
-fn add(b: *std.Build, test_step: *std.Build.Step, optimize: std.builtin.OptimizeMode) void {
-    const target = b.resolveTargetQuery(.{ .os_tag = .macos });
-
-    const lib = b.addSharedLibrary(.{
-        .name = "a",
-        .version = .{ .major = 1, .minor = 0, .patch = 0 },
-        .optimize = optimize,
-        .target = target,
-    });
-    lib.addCSourceFile(.{ .file = .{ .path = "a.c" }, .flags = &.{} });
-    lib.linkLibC();
-
-    const test_exe = b.addTest(.{
-        .root_source_file = .{ .path = "main.zig" },
-        .optimize = optimize,
-        .target = target,
-    });
-    test_exe.linkLibrary(lib);
-    test_exe.linkLibC();
-
-    const run = b.addRunArtifact(test_exe);
-    run.skip_foreign_checks = true;
-
-    test_step.dependOn(&run.step);
-}

test/link/macho/tls/main.zig

@@ -1,15 +0,0 @@
-const std = @import("std");
-
-extern threadlocal var a: i32;
-extern fn getA() i32;
-
-fn getA2() i32 {
-    return a;
-}
-
-test {
-    a = 2;
-    try std.testing.expect(getA() == 2);
-    try std.testing.expect(2 == getA2());
-    try std.testing.expect(getA() == getA2());
-}