/*
 * Copyright (c) 2015, Linaro Limited
 * Copyright (c) 2014, STMicroelectronics International N.V.
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are met:
 *
 * 1. Redistributions of source code must retain the above copyright notice,
 * this list of conditions and the following disclaimer.
 *
 * 2. Redistributions in binary form must reproduce the above copyright notice,
 * this list of conditions and the following disclaimer in the documentation
 * and/or other materials provided with the distribution.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
 * POSSIBILITY OF SUCH DAMAGE.
 */

#include <tee_syscall_numbers.h>
#include <asm.S>

#if defined(CFG_UNWIND)
#define UNWIND(...)	__VA_ARGS__
#else
#define UNWIND(...)
#endif

        .section .text
        .balign 4
        .code 32

        .macro UTEE_SYSCALL name, scn, num_args
	FUNC \name , :

UNWIND( .fnstart)
        push    {r5-r7,lr}
UNWIND( .save   {r5-r7,lr})
        mov     r7, #(\scn)
	.if \num_args > TEE_SVC_MAX_ARGS
	.error "Too many arguments for syscall"
	.endif
        .if \num_args <= 4
        @ No arguments passed on stack
        mov     r6, #0
        .else
        @ Tell number of arguments passed on the stack
        mov     r6, #(\num_args - 4)
        @ Point just before the push (4 registers) above on the first argument
        add     r5, sp, #(4 * 4)
        .endif
        svc #0
        pop     {r5-r7,pc}
UNWIND( .fnend)
	END_FUNC \name
        .endm

	FUNC utee_panic, :
UNWIND( .fnstart)
	push	{r0-r11, lr}
UNWIND(	.save	{r0-r11, lr})
	mov	lr, pc
	push	{lr}
UNWIND(	.save	{lr})
	mov	r1, sp
	bl	__utee_panic
	/* Not reached */
UNWIND( .fnend)
	END_FUNC utee_panic

#include "utee_syscalls_asm.S"
