mirror of https://go.googlesource.com/go
42 lines
916 B
ArmAsm
42 lines
916 B
ArmAsm
// Copyright 2015 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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#include "textflag.h"
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// func rawVforkSyscall(trap, a1, a2, a3 uintptr) (r1, err uintptr)
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TEXT ·rawVforkSyscall(SB),NOSPLIT,$0-48
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MOVD a1+8(FP), R0
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MOVD a2+16(FP), R1
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MOVD a3+24(FP), R2
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MOVD $0, R3
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MOVD $0, R4
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MOVD $0, R5
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MOVD trap+0(FP), R8 // syscall entry
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SVC
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CMN $4095, R0
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BCC ok
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MOVD $-1, R4
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MOVD R4, r1+32(FP) // r1
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NEG R0, R0
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MOVD R0, err+40(FP) // errno
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RET
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ok:
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MOVD R0, r1+32(FP) // r1
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MOVD ZR, err+40(FP) // errno
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RET
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// func rawSyscallNoError(trap uintptr, a1, a2, a3 uintptr) (r1, r2 uintptr);
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TEXT ·rawSyscallNoError(SB),NOSPLIT,$0-48
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MOVD a1+8(FP), R0
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MOVD a2+16(FP), R1
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MOVD a3+24(FP), R2
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MOVD $0, R3
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MOVD $0, R4
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MOVD $0, R5
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MOVD trap+0(FP), R8 // syscall entry
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SVC
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MOVD R0, r1+32(FP)
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MOVD R1, r2+40(FP)
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RET
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