libsanitizer/asan/asan_interceptors_memintrinsics.cc

//===-- asan_interceptors_memintrinsics.cc --------------------------------===//
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===---------------------------------------------------------------------===//
//
// This file is a part of AddressSanitizer, an address sanity checker.
//
// ASan versions of memcpy, memmove, and memset.
//===---------------------------------------------------------------------===//

#include "asan_interceptors_memintrinsics.h"
#include "asan_report.h"
#include "asan_stack.h"
#include "asan_suppressions.h"

using namespace __asan;  // NOLINT

void *__asan_memcpy(void *to, const void *from, uptr size) {
  ASAN_MEMCPY_IMPL(nullptr, to, from, size);
}

void *__asan_memset(void *block, int c, uptr size) {
  ASAN_MEMSET_IMPL(nullptr, block, c, size);
}

void *__asan_memmove(void *to, const void *from, uptr size) {
  ASAN_MEMMOVE_IMPL(nullptr, to, from, size);
}

#if SANITIZER_FUCHSIA

// Fuchsia doesn't use sanitizer_common_interceptors.inc, but the only
// things there it wants are these three.  Just define them as aliases
// here rather than repeating the contents.

decltype(memcpy) memcpy[[gnu::alias("__asan_memcpy")]];
decltype(memmove) memmove[[gnu::alias("__asan_memmove")]];
decltype(memset) memset[[gnu::alias("__asan_memset")]];

#endif  // SANITIZER_FUCHSIA