blob: 7fa789a349daa771b08ba52730d913a7d5c4a69d [file] [log] [blame] [edit]
// Copyright 2015 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
#include "textflag.h"
// func rawVforkSyscall(trap, a1, a2 uintptr) (r1, err uintptr)
TEXT ·rawVforkSyscall(SB),NOSPLIT,$0-40
MOVD a1+8(FP), R0
MOVD a2+16(FP), R1
MOVD $0, R2
MOVD $0, R3
MOVD $0, R4
MOVD $0, R5
MOVD trap+0(FP), R8 // syscall entry
SVC
CMN $4095, R0
BCC ok
MOVD $-1, R4
MOVD R4, r1+24(FP) // r1
NEG R0, R0
MOVD R0, err+32(FP) // errno
RET
ok:
MOVD R0, r1+24(FP) // r1
MOVD ZR, err+32(FP) // errno
RET
// func rawSyscallNoError(trap uintptr, a1, a2, a3 uintptr) (r1, r2 uintptr);
TEXT ·rawSyscallNoError(SB),NOSPLIT,$0-48
MOVD a1+8(FP), R0
MOVD a2+16(FP), R1
MOVD a3+24(FP), R2
MOVD $0, R3
MOVD $0, R4
MOVD $0, R5
MOVD trap+0(FP), R8 // syscall entry
SVC
MOVD R0, r1+32(FP)
MOVD R1, r2+40(FP)
RET