mirror of https://go.googlesource.com/go
45 lines
913 B
ArmAsm
45 lines
913 B
ArmAsm
// Copyright 2014 The Go Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style
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// license that can be found in the LICENSE file.
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//go:build linux && (ppc64 || ppc64le)
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#include "textflag.h"
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//
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// System calls for ppc64, Linux
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//
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// func rawVforkSyscall(trap, a1, a2, a3 uintptr) (r1, err uintptr)
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TEXT ·rawVforkSyscall(SB),NOSPLIT|NOFRAME,$0-48
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MOVD a1+8(FP), R3
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MOVD a2+16(FP), R4
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MOVD a3+24(FP), R5
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MOVD R0, R6
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MOVD R0, R7
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MOVD R0, R8
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MOVD trap+0(FP), R9 // syscall entry
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SYSCALL R9
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BVC ok
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MOVD $-1, R4
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MOVD R4, r1+32(FP) // r1
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MOVD R3, err+40(FP) // errno
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RET
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ok:
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MOVD R3, r1+32(FP) // r1
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MOVD R0, err+40(FP) // errno
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RET
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TEXT ·rawSyscallNoError(SB),NOSPLIT,$0-48
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MOVD a1+8(FP), R3
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MOVD a2+16(FP), R4
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MOVD a3+24(FP), R5
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MOVD R0, R6
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MOVD R0, R7
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MOVD R0, R8
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MOVD trap+0(FP), R9 // syscall entry
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SYSCALL R9
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MOVD R3, r1+32(FP)
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MOVD R0, r2+40(FP)
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RET
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