Commit 4605f7fbbfe44dea013a05b51b4a17e55e9a91ad | zig

author	xtex <xtex@astrafall.org> 2026-08-07 15:16:01+08:00
committer	xtex <xtex@astrafall.org> 2026-08-09 11:10:26+08:00
log	4605f7fbbfe44dea013a05b51b4a17e55e9a91ad
tree	f3bc2788d56f57b87e4431b259ee8a8a0304eabe
parent	726f539fe5975afee1ad857bff0c59032f146516
signature	Signed by SSH key SHA256:IEYEjkZlkUTr5U9GiDAmZU/4eZus2t2RsxusyhQqwao

7 files changed, 36 insertions(+), 1 deletions(-)

lib/compiler/test_runner.zig+1

...	...	@@ -26,6 +26,7 @@ const runner_threaded_io: Io = Io.Threaded.global_single_threaded.io();
26	26	/// the test runner will communicate with the build runner via `std.zig.Server`.
27	27	const need_simple = switch (builtin.zig_backend) {
28	28	.stage2_aarch64,
	29	.stage2_loongarch,
29	30	.stage2_powerpc,
30	31	.stage2_riscv64,
31	32	=> true,

lib/std/debug.zig+1

...	...	@@ -498,6 +498,7 @@ threadlocal var panic_stage: usize = 0;
498	498	const use_trap_panic = switch (builtin.zig_backend) {
499	499	.stage2_aarch64,
500	500	.stage2_arm,
	501	.stage2_loongarch,
501	502	.stage2_powerpc,
502	503	.stage2_riscv64,
503	504	.stage2_spirv,

lib/std/mem.zig+1

...	...	@@ -735,6 +735,7 @@ test lessThan {
735	735	const use_vectors = switch (builtin.zig_backend) {
736	736	// These backends don't support vectors yet.
737	737	.stage2_aarch64,
	738	.stage2_loongarch,
738	739	.stage2_powerpc,
739	740	.stage2_riscv64,
740	741	=> false,

lib/std/os/linux.zig+1

...	...	@@ -681,6 +681,7 @@ pub var elf_aux_maybe: ?[*]std.elf.Auxv = null;
681	681	const extern_getauxval = switch (builtin.zig_backend) {
682	682	// Calling extern functions is not yet supported with these backends
683	683	.stage2_arm,
	684	.stage2_loongarch,
684	685	.stage2_powerpc,
685	686	.stage2_riscv64,
686	687	.stage2_sparc64,

lib/std/start.zig+30-1

...	...	@@ -180,7 +180,10 @@ fn _start() callconv(.naked) noreturn {
180	180	.csky => ".cfi_undefined lr",
181	181	.hexagon => ".cfi_undefined r31",
182	182	.kvx => ".cfi_undefined r14",
183		.loongarch32, .loongarch64 => ".cfi_undefined 1",
	183	.loongarch32, .loongarch64 => if (builtin.zig_backend == .stage2_loongarch)
	184	""
	185	else
	186	".cfi_undefined 1",
184	187	.m68k => ".cfi_undefined %%pc",
185	188	.m88k => ".cfi_undefined %%r1",
186	189	.microblaze, .microblazeel => "", // No CFI support.
...	...	@@ -215,6 +218,32 @@ fn _start() callconv(.naked) noreturn {
215	218	// kernel is usually good about upholding the ABI guarantees, the same cannot be said of dynamic
216	219	// linkers; musl's ldso, for example, opts to not align the stack when invoking the dynamic
217	220	// linker explicitly.
	221	if (builtin.zig_backend == .stage2_loongarch) {
	222	// TODO: need "X" constraint support
	223	asm volatile (switch (native_arch) {
	224	.loongarch32 =>
	225	\\ move $fp, $zero
	226	\\ move $ra, $zero
	227	\\ move $a0, $sp
	228	\\ srli.w $sp, $sp, 4
	229	\\ slli.w $sp, $sp, 4
	230	\\ jirl $ra, %[posixCallMainAndExit], 0
	231	,
	232	.loongarch64 =>
	233	\\ move $fp, $zero
	234	\\ move $ra, $zero
	235	\\ move $a0, $sp
	236	\\ bstrins.d $sp, $zero, 3, 0
	237	\\ jirl $ra, %[posixCallMainAndExit], 0
	238	,
	239	else => unreachable,
	240	}
	241	:
	242	: [posixCallMainAndExit] "r" (&posixCallMainAndExit),
	243	: .{ .r1 = true, .r4 = true, .r22 = true });
	244	unreachable;
	245	}
	246
218	247	asm volatile (switch (native_arch) {
219	248	.x86_64 =>
220	249	\\ xorl %%ebp, %%ebp

lib/std/testing.zig+1

...	...	@@ -34,6 +34,7 @@ pub var log_level = std.log.Level.warn;
34	34	// Disable printing in tests for simple backends.
35	35	pub const backend_can_print = switch (builtin.zig_backend) {
36	36	.stage2_aarch64,
	37	.stage2_loongarch,
37	38	.stage2_powerpc,
38	39	.stage2_riscv64,
39	40	.stage2_spirv,

lib/ubsan_rt.zig+1

...	...	@@ -647,6 +647,7 @@ fn exportHandlerWithAbort(
647	647	}
648	648
649	649	const can_build_ubsan = switch (builtin.zig_backend) {
	650	.stage2_loongarch,
650	651	.stage2_powerpc,
651	652	.stage2_riscv64,
652	653	=> false,