mirror of https://go.googlesource.com/go
46 lines
985 B
ArmAsm
46 lines
985 B
ArmAsm
// Copyright 2014 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.
|
|
|
|
//go:build linux && (mips64 || mips64le)
|
|
|
|
#include "textflag.h"
|
|
|
|
//
|
|
// System calls for mips64, Linux
|
|
//
|
|
|
|
// func rawVforkSyscall(trap, a1, a2, a3 uintptr) (r1, err uintptr)
|
|
TEXT ·rawVforkSyscall(SB),NOSPLIT|NOFRAME,$0-48
|
|
MOVV a1+8(FP), R4
|
|
MOVV a2+16(FP), R5
|
|
MOVV a3+24(FP), R6
|
|
MOVV R0, R7
|
|
MOVV R0, R8
|
|
MOVV R0, R9
|
|
MOVV trap+0(FP), R2 // syscall entry
|
|
SYSCALL
|
|
BEQ R7, ok
|
|
MOVV $-1, R1
|
|
MOVV R1, r1+32(FP) // r1
|
|
MOVV R2, err+40(FP) // errno
|
|
RET
|
|
ok:
|
|
MOVV R2, r1+32(FP) // r1
|
|
MOVV R0, err+40(FP) // errno
|
|
RET
|
|
|
|
TEXT ·rawSyscallNoError(SB),NOSPLIT,$0-48
|
|
MOVV a1+8(FP), R4
|
|
MOVV a2+16(FP), R5
|
|
MOVV a3+24(FP), R6
|
|
MOVV R0, R7
|
|
MOVV R0, R8
|
|
MOVV R0, R9
|
|
MOVV trap+0(FP), R2 // syscall entry
|
|
MOVV R0, R3 // reset R3 to zero as 1-ret SYSCALL keeps it
|
|
SYSCALL
|
|
MOVV R2, r1+32(FP) // r1
|
|
MOVV R3, r2+40(FP) // r2
|
|
RET
|