1/*
2 * Copyright (C) 2008 The Android Open Source Project
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 *  * Redistributions of source code must retain the above copyright
9 *    notice, this list of conditions and the following disclaimer.
10 *  * Redistributions in binary form must reproduce the above copyright
11 *    notice, this list of conditions and the following disclaimer in
12 *    the documentation and/or other materials provided with the
13 *    distribution.
14 *
15 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
16 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
17 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
18 * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
19 * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
20 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
21 * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
22 * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
23 * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
24 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
25 * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
26 * SUCH DAMAGE.
27 */
28#include <sys/linux-syscalls.h>
29
30
31	.text
32	.align 4
33	.type syscall,#function
34	.globl syscall
35
36	.text
37	.align
38
39#if __ARM_EABI__
40
41syscall:
42    mov     ip, sp
43    stmfd	sp!, {r4, r5, r6, r7}
44    mov     r7, r0
45    mov     r0, r1
46    mov     r1, r2
47    mov     r2, r3
48    ldmfd	ip, {r3, r4, r5, r6}
49    swi     #0
50    ldmfd   sp!, {r4, r5, r6, r7}
51    movs    r0, r0
52    bxpl    lr
53    b       __set_syscall_errno
54
55#else
56
57#ifndef __NR_syscall
58#define __NR_syscall    113
59#endif
60
61syscall:
62    stmfd   sp!, {r4, r5, lr}
63    ldr     r4, [sp, #12]
64    ldr     r5, [sp, #16]
65    swi     __NR_syscall
66    ldmfd   sp!, {r4, r5, lr}
67    movs    r0, r0
68    bxpl    lr
69    b       __set_syscall_errno
70
71#endif
72