1 //===-- asan_interceptors_memintrinsics.cpp -------------------------------===// 2 // 3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. 4 // See https://llvm.org/LICENSE.txt for license information. 5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception 6 // 7 //===---------------------------------------------------------------------===// 8 // 9 // This file is a part of AddressSanitizer, an address sanity checker. 10 // 11 // ASan versions of memcpy, memmove, and memset. 12 //===---------------------------------------------------------------------===// 13 14 #include "asan_interceptors_memintrinsics.h" 15 #include "asan_report.h" 16 #include "asan_stack.h" 17 #include "asan_suppressions.h" 18 19 using namespace __asan; 20 21 void *__asan_memcpy(void *to, const void *from, uptr size) { 22 ASAN_MEMCPY_IMPL(nullptr, to, from, size); 23 } 24 25 void *__asan_memset(void *block, int c, uptr size) { 26 ASAN_MEMSET_IMPL(nullptr, block, c, size); 27 } 28 29 void *__asan_memmove(void *to, const void *from, uptr size) { 30 ASAN_MEMMOVE_IMPL(nullptr, to, from, size); 31 } 32 33 #if SANITIZER_FUCHSIA 34 35 // Fuchsia doesn't use sanitizer_common_interceptors.inc, but 36 // the only things there it wants are these three. Just define them 37 // as aliases here rather than repeating the contents. 38 39 extern "C" decltype(__asan_memcpy) memcpy[[gnu::alias("__asan_memcpy")]]; 40 extern "C" decltype(__asan_memmove) memmove[[gnu::alias("__asan_memmove")]]; 41 extern "C" decltype(__asan_memset) memset[[gnu::alias("__asan_memset")]]; 42 43 #endif // SANITIZER_FUCHSIA 44