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wasm linker: change rules about symbol visibility

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export by default means export, as expected. if you want hidden
visibility then use hidden visibility.
This commit is contained in:
Andrew Kelley
2025-01-15 18:31:44 -08:00
parent dcb4134835
commit 744bb5d16a
5 changed files with 9 additions and 6 deletions
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4
test/link/wasm/export/build.zig
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@@ -11,7 +11,7 @@ fn add(b: *std.Build, test_step: *std.Build.Step, optimize: std.builtin.Optimize
const no_export = b.addExecutable(.{
.name = "no-export",
.root_module = b.createModule(.{
.root_source_file = b.path("main.zig"),
.root_source_file = b.path("main-hidden.zig"),
.optimize = optimize,
.target = b.resolveTargetQuery(.{ .cpu_arch = .wasm32, .os_tag = .freestanding }),
}),
@@ -36,7 +36,7 @@ fn add(b: *std.Build, test_step: *std.Build.Step, optimize: std.builtin.Optimize
const force_export = b.addExecutable(.{
.name = "force",
.root_module = b.createModule(.{
.root_source_file = b.path("main.zig"),
.root_source_file = b.path("main-hidden.zig"),
.optimize = optimize,
.target = b.resolveTargetQuery(.{ .cpu_arch = .wasm32, .os_tag = .freestanding }),
}),

4
test/link/wasm/export/main-hidden.zig Normal file
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@@ -0,0 +1,4 @@
fn foo() callconv(.c) void {}
comptime {
@export(&foo, .{ .name = "foo", .visibility = .hidden });
}

2
test/link/wasm/function-table/build.zig
View File

@@ -40,7 +40,7 @@ fn add(b: *std.Build, test_step: *std.Build.Step, optimize: std.builtin.Optimize
check_export.checkInHeaders();
check_export.checkExact("Section export");
check_export.checkExact("entries 2");
check_export.checkExact("entries 3");
check_export.checkExact("name __indirect_function_table"); // as per linker specification
check_export.checkExact("kind table");