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 31 extern 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. */ 43 int __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 50 void __aeabi_memcpy8(void *dest, const void *src, size_t n) { 51 memcpy(dest, src, n); 52 } 53 54 void __aeabi_memcpy4(void *dest, const void *src, size_t n) { 55 memcpy(dest, src, n); 56 } 57 58 void __aeabi_memcpy(void *dest, const void *src, size_t n) { 59 memcpy(dest, src, n); 60 } 61 62 63 void __aeabi_memmove8(void *dest, const void *src, size_t n) { 64 memmove(dest, src, n); 65 } 66 67 void __aeabi_memmove4(void *dest, const void *src, size_t n) { 68 memmove(dest, src, n); 69 } 70 71 void __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 80 void __aeabi_memset8(void *dest, size_t n, int c) { 81 memset(dest, c, n); 82 } 83 84 void __aeabi_memset4(void *dest, size_t n, int c) { 85 memset(dest, c, n); 86 } 87 88 void __aeabi_memset(void *dest, size_t n, int c) { 89 memset(dest, c, n); 90 } 91 92 93 void __aeabi_memclr8(void *dest, size_t n) { 94 __aeabi_memset8(dest, n, 0); 95 } 96 97 void __aeabi_memclr4(void *dest, size_t n) { 98 __aeabi_memset4(dest, n, 0); 99 } 100 101 void __aeabi_memclr(void *dest, size_t n) { 102 __aeabi_memset(dest, n, 0); 103 } 104
