Home | History | Annotate | Line # | Download | only in asan 
      1 //===-- asan_interceptors_memintrinsics.cc --------------------------------===//
      2 //
      3 //                     The LLVM Compiler Infrastructure
      4 //
      5 // This file is distributed under the University of Illinois Open Source
      6 // License. See LICENSE.TXT for details.
      7 //
      8 //===---------------------------------------------------------------------===//
      9 //
     10 // This file is a part of AddressSanitizer, an address sanity checker.
     11 //
     12 // ASan versions of memcpy, memmove, and memset.
     13 //===---------------------------------------------------------------------===//
     14 
     15 #include "asan_interceptors_memintrinsics.h"
     16 #include "asan_report.h"
     17 #include "asan_stack.h"
     18 #include "asan_suppressions.h"
     19 
     20 using namespace __asan;  // NOLINT
     21 
     22 void *__asan_memcpy(void *to, const void *from, uptr size) {
     23   ASAN_MEMCPY_IMPL(nullptr, to, from, size);
     24 }
     25 
     26 void *__asan_memset(void *block, int c, uptr size) {
     27   ASAN_MEMSET_IMPL(nullptr, block, c, size);
     28 }
     29 
     30 void *__asan_memmove(void *to, const void *from, uptr size) {
     31   ASAN_MEMMOVE_IMPL(nullptr, to, from, size);
     32 }
     33 
     34 #if SANITIZER_FUCHSIA || SANITIZER_RTEMS
     35 
     36 // Fuchsia and RTEMS don't use sanitizer_common_interceptors.inc, but
     37 // the only things there it wants are these three.  Just define them
     38 // as aliases here rather than repeating the contents.
     39 
     40 extern "C" decltype(__asan_memcpy) memcpy[[gnu::alias("__asan_memcpy")]];
     41 extern "C" decltype(__asan_memmove) memmove[[gnu::alias("__asan_memmove")]];
     42 extern "C" decltype(__asan_memset) memset[[gnu::alias("__asan_memset")]];
     43 
     44 #endif  // SANITIZER_FUCHSIA || SANITIZER_RTEMS
     45