diff options
Diffstat (limited to 'lib/std/os/linux/arm-eabi.zig')
| -rw-r--r-- | lib/std/os/linux/arm-eabi.zig | 28 |
1 files changed, 26 insertions, 2 deletions
diff --git a/lib/std/os/linux/arm-eabi.zig b/lib/std/os/linux/arm-eabi.zig index 057ecc763a..adf161a38f 100644 --- a/lib/std/os/linux/arm-eabi.zig +++ b/lib/std/os/linux/arm-eabi.zig @@ -104,7 +104,19 @@ const CloneFn = *const fn (arg: usize) callconv(.C) u8; pub extern fn clone(func: CloneFn, stack: usize, flags: u32, arg: usize, ptid: *i32, tls: usize, ctid: *i32) usize; pub fn restore() callconv(.Naked) void { - return asm volatile ("svc #0" + if (@import("builtin").zig_backend == .stage2_c) { + asm volatile ( + \\ mov r7, %[number] + \\ svc #0 + \\ bx lr + : + : [number] "i" (@intFromEnum(SYS.sigreturn)), + : "memory" + ); + unreachable; + } + + asm volatile ("svc #0" : : [number] "{r7}" (@intFromEnum(SYS.sigreturn)), : "memory" @@ -112,7 +124,19 @@ pub fn restore() callconv(.Naked) void { } pub fn restore_rt() callconv(.Naked) void { - return asm volatile ("svc #0" + if (@import("builtin").zig_backend == .stage2_c) { + asm volatile ( + \\ mov r7, %[number] + \\ svc #0 + \\ bx lr + : + : [number] "i" (@intFromEnum(SYS.rt_sigreturn)), + : "memory" + ); + unreachable; + } + + asm volatile ("svc #0" : : [number] "{r7}" (@intFromEnum(SYS.rt_sigreturn)), : "memory" |