xref: /netbsd-src/sys/external/bsd/compiler_rt/dist/lib/asan/asan_interceptors_memintrinsics.cc (revision a7c257b03e4462df2b1020128fb82716512d7856)
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 
__asan_memcpy(void * to,const void * from,uptr size)22 void *__asan_memcpy(void *to, const void *from, uptr size) {
23   ASAN_MEMCPY_IMPL(nullptr, to, from, size);
24 }
25 
__asan_memset(void * block,int c,uptr size)26 void *__asan_memset(void *block, int c, uptr size) {
27   ASAN_MEMSET_IMPL(nullptr, block, c, size);
28 }
29 
__asan_memmove(void * to,const void * from,uptr size)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