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std.os.linux: fix restore for powerpc/powerpc64

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sigreturn and rt_sigreturn are distinct syscalls on PowerPC.
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Alex Rønne Petersen 2025-10-29 20:44:03 +01:00
parent a7119d4269
commit b2bc44e0d5
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2 changed files with 30 additions and 2 deletions
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16
lib/std/os/linux/powerpc.zig
View file

@ -232,7 +232,21 @@ pub fn clone() callconv(.naked) u32 {
); );
} }
pub const restore = restore_rt; pub fn restore() callconv(.naked) noreturn {
switch (builtin.zig_backend) {
.stage2_c => asm volatile (
\\ li 0, %[number]
\\ sc
:
: [number] "i" (@intFromEnum(SYS.sigreturn)),
),
else => asm volatile (
\\ sc
:
: [number] "{r0}" (@intFromEnum(SYS.sigreturn)),
),
}
}
pub fn restore_rt() callconv(.naked) noreturn { pub fn restore_rt() callconv(.naked) noreturn {
switch (builtin.zig_backend) { switch (builtin.zig_backend) {

16
lib/std/os/linux/powerpc64.zig
View file

@ -217,7 +217,21 @@ pub fn clone() callconv(.naked) u64 {
); );
} }
pub const restore = restore_rt; pub fn restore() callconv(.naked) noreturn {
switch (builtin.zig_backend) {
.stage2_c => asm volatile (
\\ li 0, %[number]
\\ sc
:
: [number] "i" (@intFromEnum(SYS.sigreturn)),
),
else => asm volatile (
\\ sc
:
: [number] "{r0}" (@intFromEnum(SYS.sigreturn)),
),
}
}
pub fn restore_rt() callconv(.naked) noreturn { pub fn restore_rt() callconv(.naked) noreturn {
switch (builtin.zig_backend) { switch (builtin.zig_backend) {