// Copyright 2016 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.

//go:build dragonfly || freebsd || netbsd

#include "textflag.h"

#include "funcdata.h"

//

// Syscall9 support for AMD64, DragonFly, FreeBSD and NetBSD

//

// func Syscall9(trap int64, a1, a2, a3, a4, a5, a6, a7, a8, a9 int64) (r1, r2, err int64);

TEXT ·Syscall9(SB),NOSPLIT,$32-104

NO_LOCAL_POINTERS

CALL runtime·entersyscall<ABIInternal>(SB)

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

MOVQ a1+8(FP), DI

MOVQ a2+16(FP), SI

MOVQ a3+24(FP), DX

MOVQ a4+32(FP), R10

MOVQ a5+40(FP), R8

MOVQ a6+48(FP), R9

MOVQ a7+56(FP), R11

MOVQ a8+64(FP), R12

MOVQ a9+72(FP), R13

// only the first 6 arguments can be passed in registers,

// the last three should be placed at the top of the stack.

MOVQ R11, 8(SP) // arg 7

MOVQ R12, 16(SP) // arg 8

MOVQ R13, 24(SP) // arg 9

SYSCALL

JCC ok9

MOVQ $-1, r1+80(FP) // r1

MOVQ $0, r2+88(FP) // r2

MOVQ AX, err+96(FP) // errno

CALL runtime·exitsyscall<ABIInternal>(SB)

RET

ok9:

MOVQ AX, r1+80(FP) // r1

MOVQ DX, r2+88(FP) // r2

MOVQ $0, err+96(FP) // errno

CALL runtime·exitsyscall<ABIInternal>(SB)

RET