diff options
Diffstat (limited to 'src/syscall/asm_linux_amd64.s')
| -rw-r--r-- | src/syscall/asm_linux_amd64.s | 23 |
1 files changed, 23 insertions, 0 deletions
diff --git a/src/syscall/asm_linux_amd64.s b/src/syscall/asm_linux_amd64.s index 6634875f6a..b7cd5416fe 100644 --- a/src/syscall/asm_linux_amd64.s +++ b/src/syscall/asm_linux_amd64.s @@ -111,6 +111,29 @@ ok2: MOVQ $0, err+72(FP) RET +// func rawVforkSyscall(trap, a1 uintptr) (r1, err uintptr) +TEXT ·rawVforkSyscall(SB),NOSPLIT,$0-32 + MOVQ a1+8(FP), DI + MOVQ $0, SI + MOVQ $0, DX + MOVQ $0, R10 + MOVQ $0, R8 + MOVQ $0, R9 + MOVQ trap+0(FP), AX // syscall entry + POPQ R12 // preserve return address + SYSCALL + PUSHQ R12 + CMPQ AX, $0xfffffffffffff001 + JLS ok2 + MOVQ $-1, r1+16(FP) + NEGQ AX + MOVQ AX, err+24(FP) + RET +ok2: + MOVQ AX, r1+16(FP) + MOVQ $0, err+24(FP) + RET + // func gettimeofday(tv *Timeval) (err uintptr) TEXT ·gettimeofday(SB),NOSPLIT,$0-16 MOVQ tv+0(FP), DI |