github.com/Andyfoo/golang/x/sys@v0.0.0-20190901054642-57c1bf301704/unix/asm_linux_386.s (about)

     1  // Copyright 2009 The Go Authors. All rights reserved.
     2  // Use of this source code is governed by a BSD-style
     3  // license that can be found in the LICENSE file.
     4  
     5  // +build !gccgo
     6  
     7  #include "textflag.h"
     8  
     9  //
    10  // System calls for 386, Linux
    11  //
    12  
    13  // See ../runtime/sys_linux_386.s for the reason why we always use int 0x80
    14  // instead of the glibc-specific "CALL 0x10(GS)".
    15  #define INVOKE_SYSCALL	INT	$0x80
    16  
    17  // Just jump to package syscall's implementation for all these functions.
    18  // The runtime may know about them.
    19  
    20  TEXT ·Syscall(SB),NOSPLIT,$0-28
    21  	JMP	syscall·Syscall(SB)
    22  
    23  TEXT ·Syscall6(SB),NOSPLIT,$0-40
    24  	JMP	syscall·Syscall6(SB)
    25  
    26  TEXT ·SyscallNoError(SB),NOSPLIT,$0-24
    27  	CALL	runtime·entersyscall(SB)
    28  	MOVL	trap+0(FP), AX  // syscall entry
    29  	MOVL	a1+4(FP), BX
    30  	MOVL	a2+8(FP), CX
    31  	MOVL	a3+12(FP), DX
    32  	MOVL	$0, SI
    33  	MOVL	$0, DI
    34  	INVOKE_SYSCALL
    35  	MOVL	AX, r1+16(FP)
    36  	MOVL	DX, r2+20(FP)
    37  	CALL	runtime·exitsyscall(SB)
    38  	RET
    39  
    40  TEXT ·RawSyscall(SB),NOSPLIT,$0-28
    41  	JMP	syscall·RawSyscall(SB)
    42  
    43  TEXT ·RawSyscall6(SB),NOSPLIT,$0-40
    44  	JMP	syscall·RawSyscall6(SB)
    45  
    46  TEXT ·RawSyscallNoError(SB),NOSPLIT,$0-24
    47  	MOVL	trap+0(FP), AX  // syscall entry
    48  	MOVL	a1+4(FP), BX
    49  	MOVL	a2+8(FP), CX
    50  	MOVL	a3+12(FP), DX
    51  	MOVL	$0, SI
    52  	MOVL	$0, DI
    53  	INVOKE_SYSCALL
    54  	MOVL	AX, r1+16(FP)
    55  	MOVL	DX, r2+20(FP)
    56  	RET
    57  
    58  TEXT ·socketcall(SB),NOSPLIT,$0-36
    59  	JMP	syscall·socketcall(SB)
    60  
    61  TEXT ·rawsocketcall(SB),NOSPLIT,$0-36
    62  	JMP	syscall·rawsocketcall(SB)
    63  
    64  TEXT ·seek(SB),NOSPLIT,$0-28
    65  	JMP	syscall·seek(SB)