1// Copyright 2022 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#include "textflag.h" 6 7// See ../sys_linux_386.s for the reason why we always use int 0x80 8// instead of the glibc-specific "CALL 0x10(GS)". 9#define INVOKE_SYSCALL INT $0x80 10 11// func Syscall6(num, a1, a2, a3, a4, a5, a6 uintptr) (r1, r2, errno uintptr) 12// 13// Syscall # in AX, args in BX CX DX SI DI BP, return in AX 14TEXT ·Syscall6(SB),NOSPLIT,$0-40 15 MOVL num+0(FP), AX // syscall entry 16 MOVL a1+4(FP), BX 17 MOVL a2+8(FP), CX 18 MOVL a3+12(FP), DX 19 MOVL a4+16(FP), SI 20 MOVL a5+20(FP), DI 21 MOVL a6+24(FP), BP 22 INVOKE_SYSCALL 23 CMPL AX, $0xfffff001 24 JLS ok 25 MOVL $-1, r1+28(FP) 26 MOVL $0, r2+32(FP) 27 NEGL AX 28 MOVL AX, errno+36(FP) 29 RET 30ok: 31 MOVL AX, r1+28(FP) 32 MOVL DX, r2+32(FP) 33 MOVL $0, errno+36(FP) 34 RET 35