From de297890e399b83fe99182cc2f223117099f35b2 Mon Sep 17 00:00:00 2001
From: kcbanner <kcbanner@gmail.com>
Date: Fri, 5 Jun 2026 01:55:36 -0400
Subject: [PATCH] test/link: add emit-static-lib

---
 test/link.zig                               | 40 ++++++++++++++++++++-
 test/link/snapshots/emit-static-lib.lib.dmp |  9 +++++
 test/src/Link.zig                           | 15 ++++++--
 3 files changed, 61 insertions(+), 3 deletions(-)
 create mode 100644 test/link/snapshots/emit-static-lib.lib.dmp

diff --git a/test/link.zig b/test/link.zig
index 65ec8f4e7e2ea7f5f7b7bed6de646ed1a5b9a329..3faecc710feecb15376718833d151a4708b58d3b 100644
--- a/test/link.zig
+++ b/test/link.zig
@@ -1,4 +1,4 @@
-pub fn addCases(ctx: *@import("tests.zig").LinkContext) void {
+pub fn addCases(ctx: *LinkContext) void {
     if (ctx.includeTest("exports-static")) |prefix| {
         const lib = ctx.addLibrary(.static, .{
             .name = "lib",
@@ -23,8 +23,46 @@ pub fn addCases(ctx: *@import("tests.zig").LinkContext) void {
         }, .{});
     }
 
+    if (ctx.includeTest("emit-static-lib")) |prefix| {
+        const obj1 = ctx.addObject(.{
+            .name = "obj1",
+            .use_llvm = true,
+            .use_lld = true,
+            .c_source_bytes =
+            \\int foo1 = 1;
+            \\int foo2 = 2;
+            \\int fooBar() {
+            \\  return foo1 + foo2;
+            \\}
+            ,
+        });
+        const obj2 = ctx.addObject(.{
+            .name = "this_is_a_long_name",
+            .zig_source_bytes =
+            \\fn weakFoo() callconv(.c) usize {
+            \\    return 42;
+            \\}
+            \\export var strong_foo: usize = 100;
+            \\comptime {
+            \\    @export(&weakFoo, .{ .name = "weakFoo", .linkage = .weak });
+            \\    @export(&strong_foo, .{ .name = "strong_foo_alias", .linkage = .strong });
+            \\}
+            ,
+        });
 
+        const lib = ctx.addLibrary(.static, .{ .name = "lib" });
+        lib.root_module.addObject(obj1);
+        lib.root_module.addObject(obj2);
 
+        ctx.verifyObjdump(prefix, lib, &.{
+            "-s",
+            "--elements=file-type",
+            "--symbols",
+            "--only-symbol=foo",
+            "--only-symbol=Foo",
+        }, .{});
+    }
 }
 
+const LinkContext = @import("tests.zig").LinkContext;
 const std = @import("std");
diff --git a/test/link/snapshots/emit-static-lib.lib.dmp b/test/link/snapshots/emit-static-lib.lib.dmp
new file mode 100644
index 0000000000000000000000000000000000000000..7f187063d02f8bb44c5574b0bf94ade24576c525
--- /dev/null
+++ b/test/link/snapshots/emit-static-lib.lib.dmp
@@ -0,0 +1,9 @@
+lib.lib: COFF archive
+lib.lib(obj1.obj): COFF object
+xxxx 00000000     1 NULL()        EXTERNAL | fooBar
+xxxx 00000000     2 NULL          EXTERNAL | foo1
+xxxx 00000004     2 NULL          EXTERNAL | foo2
+lib.lib(this_is_a_long_name.obj): COFF object
+xxxx 00000000     4 NULL()        EXTERNAL | weakFoo
+xxxx 00000000     2 NULL          EXTERNAL | strong_foo_alias
+xxxx 00000000     2 NULL          EXTERNAL | strong_foo
diff --git a/test/src/Link.zig b/test/src/Link.zig
index adcc329b6a98e54667002b3236dde144e39ba752..08ad3f228fbe2dd57fe9fe4fbaf0a7b80794184f 100644
--- a/test/src/Link.zig
+++ b/test/src/Link.zig
@@ -30,8 +30,17 @@ pub fn addLibrary(
         .linkage = linkage,
         .name = overlay.name,
         .root_module = self.createModule(overlay),
-        .use_llvm = self.use_llvm,
-        .use_lld = self.use_lld,
+        .use_llvm = overlay.use_llvm orelse self.use_llvm,
+        .use_lld = overlay.use_lld orelse self.use_lld,
+    });
+}
+
+pub fn addObject(self: *const Link, overlay: OverlayOptions) *Step.Compile {
+    return self.b.addObject(.{
+        .name = overlay.name,
+        .root_module = self.createModule(overlay),
+        .use_llvm = overlay.use_llvm orelse self.use_llvm,
+        .use_lld = overlay.use_lld orelse self.use_lld,
     });
 }
 
@@ -169,6 +178,8 @@ const OverlayOptions = struct {
     zig_source_file: ?std.Build.LazyPath = null,
     pic: ?bool = null,
     strip: ?bool = null,
+    use_llvm: ?bool = null,
+    use_lld: ?bool = null,
 };
 
 const std = @import("std");
-- 
2.54.0