...

Text file src/syscall/asm9_unix1_amd64.s

Documentation: syscall

     1// +build netbsd openbsd
     2
     3// Copyright 2016 The Go Authors. All rights reserved.
     4// Use of this source code is governed by a BSD-style
     5// license that can be found in the LICENSE file.
     6
     7#include "textflag.h"
     8#include "funcdata.h"
     9
    10//
    11// Syscall9 support for AMD64, NetBSD and OpenBSD
    12//
    13
    14// func Syscall9(trap int64, a1, a2, a3, a4, a5, a6, a7, a8, a9 int64) (r1, r2, err int64);
    15TEXT	·Syscall9(SB),NOSPLIT,$0-104
    16	CALL	runtime·entersyscall(SB)
    17	MOVQ	num+0(FP), AX	// syscall entry
    18	MOVQ	a1+8(FP), DI
    19	MOVQ	a2+16(FP), SI
    20	MOVQ	a3+24(FP), DX
    21	MOVQ	a4+32(FP), R10
    22	MOVQ	a5+40(FP), R8
    23	MOVQ	a6+48(FP), R9
    24	MOVQ	a7+56(FP), R11
    25	MOVQ	a8+64(FP), R12
    26	MOVQ	a9+72(FP), R13
    27	SUBQ    $32, SP
    28	MOVQ	R11, 8(SP)	// arg 7
    29	MOVQ	R12, 16(SP)	// arg 8
    30	MOVQ	R13, 24(SP)	// arg 9
    31	SYSCALL
    32	JCC	ok9
    33	ADDQ    $32, SP
    34	MOVQ	$-1, 88(SP)	// r1
    35	MOVQ	$0, 96(SP)	// r2
    36	MOVQ	AX, 104(SP)	// errno
    37	CALL	runtime·exitsyscall(SB)
    38	RET
    39ok9:
    40	ADDQ    $32, SP
    41	MOVQ	AX, 88(SP)	// r1
    42	MOVQ	DX, 96(SP)	// r2
    43	MOVQ	$0, 104(SP)	// errno
    44	CALL	runtime·exitsyscall(SB)
    45	RET

View as plain text