commit 4219825042057ce901df1261e089ef477c381fe7 (tree)
parent 7be3b1de455c9cf247dc3ab8c4fd75c9b16d77cf
Author: Alex Rønne Petersen <alex@alexrp.com>
Date: Mon, 1 Jun 2026 14:44:13 +0200
test: use -ffunction-sections -fdata-sections for C backend module tests if needed
We need this for certain targets for the same reason we do it when bootstrapping
the compiler from zig1.wasm.
Diffstat:
| M | test/tests.zig | | | 99 | ++++++++++++++++++++++++++++++++++++++++++++++++------------------------------- |
1 file changed, 60 insertions(+), 39 deletions(-)
diff --git a/test/tests.zig b/test/tests.zig
@@ -2811,45 +2811,66 @@ fn addOneModuleTest(
compile_c.addCSourceFile(.{
.file = these_tests.getEmittedBin(),
- .flags = &.{
- // Tracking issue for making the C backend generate C89 compatible code:
- // https://github.com/ziglang/zig/issues/19468
- "-std=c99",
- "-Werror",
-
- "-Wall",
- "-Wembedded-directive",
- "-Wempty-translation-unit",
- "-Wextra",
- "-Wgnu",
- "-Winvalid-utf8",
- "-Wkeyword-macro",
- "-Woverlength-strings",
-
- // Tracking issue for making the C backend generate code
- // that does not trigger warnings:
- // https://github.com/ziglang/zig/issues/19467
-
- // spotted everywhere
- "-Wno-builtin-requires-header",
-
- // spotted on linux
- "-Wno-braced-scalar-init",
- "-Wno-excess-initializers",
- "-Wno-incompatible-pointer-types-discards-qualifiers",
- "-Wno-unused",
- "-Wno-unused-parameter",
-
- // spotted on darwin
- "-Wno-incompatible-pointer-types",
-
- // https://github.com/llvm/llvm-project/issues/153314
- "-Wno-unterminated-string-initialization",
-
- // In both Zig and C it is legal to return a pointer to a
- // local. The C backend lowers such thing directly, so the
- // corresponding warning in C must be disabled.
- "-Wno-return-stack-address",
+ .flags = blk: {
+ const invariant_cflags: []const []const u8 = &.{
+ // Tracking issue for making the C backend generate C89 compatible code:
+ // https://github.com/ziglang/zig/issues/19468
+ "-std=c99",
+ "-Werror",
+
+ "-Wall",
+ "-Wembedded-directive",
+ "-Wempty-translation-unit",
+ "-Wextra",
+ "-Wgnu",
+ "-Winvalid-utf8",
+ "-Wkeyword-macro",
+ "-Woverlength-strings",
+
+ // Tracking issue for making the C backend generate code
+ // that does not trigger warnings:
+ // https://github.com/ziglang/zig/issues/19467
+
+ // spotted everywhere
+ "-Wno-builtin-requires-header",
+
+ // spotted on linux
+ "-Wno-braced-scalar-init",
+ "-Wno-excess-initializers",
+ "-Wno-incompatible-pointer-types-discards-qualifiers",
+ "-Wno-unused",
+ "-Wno-unused-parameter",
+
+ // spotted on darwin
+ "-Wno-incompatible-pointer-types",
+
+ // https://github.com/llvm/llvm-project/issues/153314
+ "-Wno-unterminated-string-initialization",
+
+ // In both Zig and C it is legal to return a pointer to a
+ // local. The C backend lowers such thing directly, so the
+ // corresponding warning in C must be disabled.
+ "-Wno-return-stack-address",
+ };
+
+ const function_data_sections = switch (target.cpu.arch) {
+ .arm,
+ .armeb,
+ .thumb,
+ .thumbeb,
+ .hexagon,
+ .powerpc,
+ .powerpcle,
+ .powerpc64,
+ .powerpc64le,
+ => true,
+ else => false,
+ };
+
+ break :blk if (function_data_sections) invariant_cflags ++ &[_][]const u8{
+ "-ffunction-sections",
+ "-fdata-sections",
+ } else invariant_cflags;
},
});
compile_c.addIncludePath(b.path("lib")); // for zig.h
