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