1 // Copyright 2014 The Chromium Authors. All rights reserved.
2 // Use of this source code is governed by a BSD-style license that can be
3 // found in the LICENSE file.
4 //
5 // Defines some functions that intentionally do an invalid memory access in
6 // order to trigger an AddressSanitizer (ASan) error report.
7 
8 #ifndef BASE_DEBUG_ASAN_INVALID_ACCESS_H_
9 #define BASE_DEBUG_ASAN_INVALID_ACCESS_H_
10 
11 #include "base/base_export.h"
12 #include "base/compiler_specific.h"
13 #include "build/build_config.h"
14 
15 namespace base {
16 namespace debug {
17 
18 #if defined(ADDRESS_SANITIZER)
19 
20 // Generates an heap buffer overflow.
21 BASE_EXPORT NOINLINE void AsanHeapOverflow();
22 
23 // Generates an heap buffer underflow.
24 BASE_EXPORT NOINLINE void AsanHeapUnderflow();
25 
26 // Generates an use after free.
27 BASE_EXPORT NOINLINE void AsanHeapUseAfterFree();
28 
29 // The "corrupt-block" and "corrupt-heap" classes of bugs is specific to
30 // Windows.
31 #if defined(OS_WIN)
32 // Corrupts a memory block and makes sure that the corruption gets detected when
33 // we try to free this block.
34 BASE_EXPORT NOINLINE void AsanCorruptHeapBlock();
35 
36 // Corrupts the heap and makes sure that the corruption gets detected when a
37 // crash occur.
38 BASE_EXPORT NOINLINE void AsanCorruptHeap();
39 
40 #endif  // OS_WIN
41 #endif  // ADDRESS_SANITIZER
42 
43 }  // namespace debug
44 }  // namespace base
45 
46 #endif  // BASE_DEBUG_ASAN_INVALID_ACCESS_H_
47