mirror of
https://github.com/golang/go
synced 2024-10-04 18:31:22 -06:00
db324ccd72
R=golang-dev, bradfitz CC=golang-dev https://golang.org/cl/12773043
104 lines
2.0 KiB
ArmAsm
104 lines
2.0 KiB
ArmAsm
// Copyright 2009 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 "../../cmd/ld/textflag.h"
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//
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// System call support for AMD64, Darwin
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//
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// func Syscall(trap int64, a1, a2, a3 int64) (r1, r2, err int64);
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// func Syscall6(trap int64, a1, a2, a3, a4, a5, a6 int64) (r1, r2, err int64);
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// Trap # in AX, args in DI SI DX, return in AX DX
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TEXT ·Syscall(SB),NOSPLIT,$0-64
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CALL runtime·entersyscall(SB)
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MOVQ 16(SP), DI
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MOVQ 24(SP), SI
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MOVQ 32(SP), DX
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MOVQ $0, R10
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MOVQ $0, R8
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MOVQ $0, R9
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MOVQ 8(SP), AX // syscall entry
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ADDQ $0x2000000, AX
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SYSCALL
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JCC ok
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MOVQ $-1, 40(SP) // r1
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MOVQ $0, 48(SP) // r2
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MOVQ AX, 56(SP) // errno
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CALL runtime·exitsyscall(SB)
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RET
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ok:
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MOVQ AX, 40(SP) // r1
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MOVQ DX, 48(SP) // r2
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MOVQ $0, 56(SP) // errno
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CALL runtime·exitsyscall(SB)
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RET
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TEXT ·Syscall6(SB),NOSPLIT,$0-88
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CALL runtime·entersyscall(SB)
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MOVQ 16(SP), DI
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MOVQ 24(SP), SI
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MOVQ 32(SP), DX
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MOVQ 40(SP), R10
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MOVQ 48(SP), R8
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MOVQ 56(SP), R9
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MOVQ 8(SP), AX // syscall entry
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ADDQ $0x2000000, AX
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SYSCALL
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JCC ok6
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MOVQ $-1, 64(SP) // r1
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MOVQ $0, 72(SP) // r2
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MOVQ AX, 80(SP) // errno
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CALL runtime·exitsyscall(SB)
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RET
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ok6:
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MOVQ AX, 64(SP) // r1
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MOVQ DX, 72(SP) // r2
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MOVQ $0, 80(SP) // errno
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CALL runtime·exitsyscall(SB)
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RET
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TEXT ·RawSyscall(SB),NOSPLIT,$0-64
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MOVQ 16(SP), DI
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MOVQ 24(SP), SI
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MOVQ 32(SP), DX
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MOVQ $0, R10
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MOVQ $0, R8
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MOVQ $0, R9
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MOVQ 8(SP), AX // syscall entry
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ADDQ $0x2000000, AX
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SYSCALL
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JCC ok1
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MOVQ $-1, 40(SP) // r1
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MOVQ $0, 48(SP) // r2
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MOVQ AX, 56(SP) // errno
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RET
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ok1:
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MOVQ AX, 40(SP) // r1
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MOVQ DX, 48(SP) // r2
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MOVQ $0, 56(SP) // errno
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RET
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TEXT ·RawSyscall6(SB),NOSPLIT,$0-88
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MOVQ 16(SP), DI
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MOVQ 24(SP), SI
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MOVQ 32(SP), DX
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MOVQ 40(SP), R10
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MOVQ 48(SP), R8
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MOVQ 56(SP), R9
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MOVQ 8(SP), AX // syscall entry
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ADDQ $0x2000000, AX
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SYSCALL
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JCC ok2
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MOVQ $-1, 64(SP) // r1
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MOVQ $0, 72(SP) // r2
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MOVQ AX, 80(SP) // errno
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RET
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ok2:
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MOVQ AX, 64(SP) // r1
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MOVQ DX, 72(SP) // r2
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MOVQ $0, 80(SP) // errno
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RET
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