blob: 15aae4d8bd98ea5cf15aca0d823402ca5a8f2db5 [file] [log] [blame]
// 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
CMPL AX, $0xfffff001
JLS ok
MOVL $-1, r1+28(FP)
MOVL $0, r2+32(FP)
MOVL AX, errno+36(FP)
MOVL AX, r1+28(FP)
MOVL DX, r2+32(FP)
MOVL $0, errno+36(FP)