diff options
Diffstat (limited to 'src/syscall/asm_linux_riscv64.s')
| -rw-r--r-- | src/syscall/asm_linux_riscv64.s | 22 |
1 files changed, 22 insertions, 0 deletions
diff --git a/src/syscall/asm_linux_riscv64.s b/src/syscall/asm_linux_riscv64.s index ad0b6b17d9..f172dd3d9b 100644 --- a/src/syscall/asm_linux_riscv64.s +++ b/src/syscall/asm_linux_riscv64.s @@ -104,6 +104,28 @@ err: MOV A0, err+72(FP) // errno RET +// func rawVforkSyscall(trap, a1 uintptr) (r1, err uintptr) +TEXT ·rawVforkSyscall(SB),NOSPLIT|NOFRAME,$0-32 + MOV a1+8(FP), A0 + MOV ZERO, A1 + MOV ZERO, A2 + MOV ZERO, A3 + MOV ZERO, A4 + MOV ZERO, A5 + MOV trap+0(FP), A7 // syscall entry + ECALL + MOV $-4096, T0 + BLTU T0, A0, err + MOV A0, r1+16(FP) // r1 + MOV ZERO, err+24(FP) // errno + RET +err: + MOV $-1, T0 + MOV T0, r1+16(FP) // r1 + SUB A0, ZERO, A0 + MOV A0, err+24(FP) // errno + RET + TEXT ·rawSyscallNoError(SB),NOSPLIT,$0-48 MOV a1+8(FP), A0 MOV a2+16(FP), A1 |