// Copyright 2022 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.

#include "textflag.h"

// See ../sys_linux_386.s for the reason why we always use int 0x80

// instead of the glibc-specific "CALL 0x10(GS)".

#define INVOKE_SYSCALL INT $0x80

// func Syscall6(num, a1, a2, a3, a4, a5, a6 uintptr) (r1, r2, errno uintptr)

//

// Syscall # in AX, args in BX CX DX SI DI BP, return in AX

TEXT ·Syscall6(SB),NOSPLIT,$0-40

MOVL num+0(FP), AX // syscall entry

MOVL a1+4(FP), BX

MOVL a2+8(FP), CX

MOVL a3+12(FP), DX

MOVL a4+16(FP), SI

MOVL a5+20(FP), DI

MOVL a6+24(FP), BP

INVOKE_SYSCALL

CMPL AX, $0xfffff001

JLS ok

MOVL $-1, r1+28(FP)

MOVL $0, r2+32(FP)

NEGL AX

MOVL AX, errno+36(FP)

RET

ok:

MOVL AX, r1+28(FP)

MOVL DX, r2+32(FP)

MOVL $0, errno+36(FP)

RET