/* Copyright (C) 2005-2018 Free Software Foundation, Inc.

   This file is part of the GNU C Library.

   The GNU C Library is free software; you can redistribute it and/or

   modify it under the terms of the GNU Lesser General Public

   License as published by the Free Software Foundation; either

   version 2.1 of the License, or (at your option) any later version.

   The GNU C Library is distributed in the hope that it will be useful,

   but WITHOUT ANY WARRANTY; without even the implied warranty of

   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU

   Lesser General Public License for more details.

   You should have received a copy of the GNU Lesser General Public

   License along with the GNU C Library.  If not, see

   <http://www.gnu.org/licenses/>.  */

#include <sysdep.h>

/* In the EABI syscall interface, we don't need a special syscall to

   implement syscall().  It won't work reliably with 64-bit arguments

   (but that is true on many modern platforms).  */

ENTRY (syscall)

	mov	ip, sp

	push	{r4, r5, r6, r7}

	cfi_adjust_cfa_offset (16)

	cfi_rel_offset (r4, 0)

	cfi_rel_offset (r5, 4)

	cfi_rel_offset (r6, 8)

	cfi_rel_offset (r7, 12)

	mov	r7, r0

	mov	r0, r1

	mov	r1, r2

	mov	r2, r3

	ldmfd	ip, {r3, r4, r5, r6}

	swi	0x0

	pop	{r4, r5, r6, r7}

	cfi_adjust_cfa_offset (-16)

	cfi_restore (r4)

	cfi_restore (r5)

	cfi_restore (r6)

	cfi_restore (r7)

	cmn	r0, #4096

	it	cc

	RETINSTR(cc, lr)

	b	PLTJMP(syscall_error)

PSEUDO_END (syscall)