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
14namespace base {
15namespace debug {
16
17#if defined(ADDRESS_SANITIZER) || defined(SYZYASAN)
18
19// Generates an heap buffer overflow.
20BASE_EXPORT NOINLINE void AsanHeapOverflow();
21
22// Generates an heap buffer underflow.
23BASE_EXPORT NOINLINE void AsanHeapUnderflow();
24
25// Generates an use after free.
26BASE_EXPORT NOINLINE void AsanHeapUseAfterFree();
27
28#endif  // ADDRESS_SANITIZER || SYZYASAN
29
30// The "corrupt-block" and "corrupt-heap" classes of bugs is specific to
31// SyzyASan.
32#if defined(SYZYASAN) && defined(COMPILER_MSVC)
33
34// Corrupts a memory block and makes sure that the corruption gets detected when
35// we try to free this block.
36BASE_EXPORT NOINLINE void AsanCorruptHeapBlock();
37
38// Corrupts the heap and makes sure that the corruption gets detected when a
39// crash occur.
40BASE_EXPORT NOINLINE void AsanCorruptHeap();
41
42#endif  // SYZYASAN && COMPILER_MSVC
43
44}  // namespace debug
45}  // namespace base
46
47#endif  // BASE_DEBUG_ASAN_INVALID_ACCESS_H_
48