asm_linux_amd64.s 1.2 KB
Newer Older
M
MarsChan 已提交
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57
// Copyright 2009 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.

// +build !gccgo

#include "textflag.h"

//
// System calls for AMD64, Linux
//

// Just jump to package syscall's implementation for all these functions.
// The runtime may know about them.

TEXT ·Syscall(SB),NOSPLIT,$0-56
	JMP	syscall·Syscall(SB)

TEXT ·Syscall6(SB),NOSPLIT,$0-80
	JMP	syscall·Syscall6(SB)

TEXT ·SyscallNoError(SB),NOSPLIT,$0-48
	CALL	runtime·entersyscall(SB)
	MOVQ	a1+8(FP), DI
	MOVQ	a2+16(FP), SI
	MOVQ	a3+24(FP), DX
	MOVQ	$0, R10
	MOVQ	$0, R8
	MOVQ	$0, R9
	MOVQ	trap+0(FP), AX	// syscall entry
	SYSCALL
	MOVQ	AX, r1+32(FP)
	MOVQ	DX, r2+40(FP)
	CALL	runtime·exitsyscall(SB)
	RET

TEXT ·RawSyscall(SB),NOSPLIT,$0-56
	JMP	syscall·RawSyscall(SB)

TEXT ·RawSyscall6(SB),NOSPLIT,$0-80
	JMP	syscall·RawSyscall6(SB)

TEXT ·RawSyscallNoError(SB),NOSPLIT,$0-48
	MOVQ	a1+8(FP), DI
	MOVQ	a2+16(FP), SI
	MOVQ	a3+24(FP), DX
	MOVQ	$0, R10
	MOVQ	$0, R8
	MOVQ	$0, R9
	MOVQ	trap+0(FP), AX	// syscall entry
	SYSCALL
	MOVQ	AX, r1+32(FP)
	MOVQ	DX, r2+40(FP)
	RET

TEXT ·gettimeofday(SB),NOSPLIT,$0-16
	JMP	syscall·gettimeofday(SB)