1 //===-- asan_interceptors_memintrinsics.cpp -------------------------------===//
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
7 //===---------------------------------------------------------------------===//
9 // This file is a part of AddressSanitizer, an address sanity checker.
11 // ASan versions of memcpy, memmove, and memset.
12 //===---------------------------------------------------------------------===//
14 #include "asan_interceptors_memintrinsics.h"
15 #include "asan_report.h"
16 #include "asan_stack.h"
17 #include "asan_suppressions.h"
19 using namespace __asan
; // NOLINT
21 void *__asan_memcpy(void *to
, const void *from
, uptr size
) {
22 ASAN_MEMCPY_IMPL(nullptr, to
, from
, size
);
25 void *__asan_memset(void *block
, int c
, uptr size
) {
26 ASAN_MEMSET_IMPL(nullptr, block
, c
, size
);
29 void *__asan_memmove(void *to
, const void *from
, uptr size
) {
30 ASAN_MEMMOVE_IMPL(nullptr, to
, from
, size
);
33 #if SANITIZER_FUCHSIA || SANITIZER_RTEMS
35 // Fuchsia and RTEMS don'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.
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")]];
43 #endif // SANITIZER_FUCHSIA || SANITIZER_RTEMS