| /* | |
| * Copyright (C) 2019 The Android Open Source Project | |
| * All rights reserved. | |
| * | |
| * Redistribution and use in source and binary forms, with or without | |
| * modification, are permitted provided that the following conditions | |
| * are met: | |
| * * Redistributions of source code must retain the above copyright | |
| * notice, this list of conditions and the following disclaimer. | |
| * * 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 OWNER 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. | |
| */ | |
| #if defined(__BIONIC_FORTIFY) | |
| __BIONIC_FORTIFY_INLINE | |
| void __bionic_bcopy(const void * _Nonnull src, void* _Nonnull const dst __pass_object_size0, size_t len) | |
| __overloadable | |
| __clang_error_if(__bos_unevaluated_lt(__bos0(dst), len), | |
| "'bcopy' called with size bigger than buffer") { | |
| #if __BIONIC_FORTIFY_RUNTIME_CHECKS_ENABLED | |
| size_t bos = __bos0(dst); | |
| if (!__bos_trivially_ge(bos, len)) { | |
| __builtin___memmove_chk(dst, src, len, bos); | |
| return; | |
| } | |
| #endif | |
| __builtin_memmove(dst, src, len); | |
| } | |
| __BIONIC_FORTIFY_INLINE | |
| void __bionic_bzero(void* _Nonnull const b __pass_object_size0, size_t len) | |
| __overloadable | |
| __clang_error_if(__bos_unevaluated_lt(__bos0(b), len), | |
| "'bzero' called with size bigger than buffer") { | |
| #if __BIONIC_FORTIFY_RUNTIME_CHECKS_ENABLED | |
| size_t bos = __bos0(b); | |
| if (!__bos_trivially_ge(bos, len)) { | |
| __builtin___memset_chk(b, 0, len, bos); | |
| return; | |
| } | |
| #endif | |
| __builtin_memset(b, 0, len); | |
| } | |
| #endif /* defined(__BIONIC_FORTIFY) */ |