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 <stddef.h>
29#include <string.h>
30
31extern int  __cxa_atexit(void (*)(void*), void*, void* );
32
33/* The "C++ ABI for ARM" document states that static C++ constructors,
34 * which are called from the .init_array, should manually call
35 * __aeabi_atexit() to register static destructors explicitely.
36 *
37 * Note that 'dso_handle' is the address of a magic linker-generate
38 * variable from the shared object that contains the constructor/destructor
39 */
40
41/* Make this a weak symbol to avoid a multiple definition error when linking
42 * with libstdc++-v3.  */
43int __attribute__((weak))
44__aeabi_atexit (void *object, void (*destructor) (void *), void *dso_handle)
45{
46    return __cxa_atexit(destructor, object, dso_handle);
47}
48
49
50void __aeabi_memcpy8(void *dest, const void *src, size_t n) {
51    memcpy(dest, src, n);
52}
53
54void __aeabi_memcpy4(void *dest, const void *src, size_t n) {
55    memcpy(dest, src, n);
56}
57
58void __aeabi_memcpy(void *dest, const void *src, size_t n) {
59    memcpy(dest, src, n);
60}
61
62
63void __aeabi_memmove8(void *dest, const void *src, size_t n) {
64    memmove(dest, src, n);
65}
66
67void __aeabi_memmove4(void *dest, const void *src, size_t n) {
68    memmove(dest, src, n);
69}
70
71void __aeabi_memmove(void *dest, const void *src, size_t n) {
72    memmove(dest, src, n);
73}
74
75/*
76 * __aeabi_memset has the order of its second and third arguments reversed.
77 *  This allows __aeabi_memclr to tail-call __aeabi_memset
78 */
79
80void __aeabi_memset8(void *dest, size_t n, int c) {
81    memset(dest, c, n);
82}
83
84void __aeabi_memset4(void *dest, size_t n, int c) {
85    memset(dest, c, n);
86}
87
88void __aeabi_memset(void *dest, size_t n, int c) {
89    memset(dest, c, n);
90}
91
92
93void __aeabi_memclr8(void *dest, size_t n) {
94    __aeabi_memset8(dest, n, 0);
95}
96
97void __aeabi_memclr4(void *dest, size_t n) {
98    __aeabi_memset4(dest, n, 0);
99}
100
101void __aeabi_memclr(void *dest, size_t n) {
102    __aeabi_memset(dest, n, 0);
103}
104