| Index: base/debug/asan_invalid_access.cc
|
| diff --git a/base/debug/asan_invalid_access.cc b/base/debug/asan_invalid_access.cc
|
| deleted file mode 100644
|
| index cee21066265c08282c90fc7fe95430f82422870b..0000000000000000000000000000000000000000
|
| --- a/base/debug/asan_invalid_access.cc
|
| +++ /dev/null
|
| @@ -1,105 +0,0 @@
|
| -// Copyright 2014 The Chromium Authors. All rights reserved.
|
| -// Use of this source code is governed by a BSD-style license that can be
|
| -// found in the LICENSE file.
|
| -
|
| -#if defined(OS_WIN)
|
| -#include <windows.h>
|
| -#endif
|
| -
|
| -#include "base/debug/alias.h"
|
| -#include "base/debug/asan_invalid_access.h"
|
| -#include "base/logging.h"
|
| -#include "base/memory/scoped_ptr.h"
|
| -
|
| -namespace base {
|
| -namespace debug {
|
| -
|
| -namespace {
|
| -
|
| -#if defined(SYZYASAN) && defined(COMPILER_MSVC)
|
| -// Disable warning C4530: "C++ exception handler used, but unwind semantics are
|
| -// not enabled". We don't want to change the compilation flags just for this
|
| -// test, and no exception should be triggered here, so this warning has no value
|
| -// here.
|
| -#pragma warning(push)
|
| -#pragma warning(disable: 4530)
|
| -// Corrupt a memory block and make sure that the corruption gets detected either
|
| -// when we free it or when another crash happens (if |induce_crash| is set to
|
| -// true).
|
| -NOINLINE void CorruptMemoryBlock(bool induce_crash) {
|
| - // NOTE(sebmarchand): We intentionally corrupt a memory block here in order to
|
| - // trigger an Address Sanitizer (ASAN) error report.
|
| - static const int kArraySize = 5;
|
| - int* array = new int[kArraySize];
|
| - // Encapsulate the invalid memory access into a try-catch statement to prevent
|
| - // this function from being instrumented. This way the underflow won't be
|
| - // detected but the corruption will (as the allocator will still be hooked).
|
| - try {
|
| - // Declares the dummy value as volatile to make sure it doesn't get
|
| - // optimized away.
|
| - int volatile dummy = array[-1]--;
|
| - base::debug::Alias(const_cast<int*>(&dummy));
|
| - } catch (...) {
|
| - }
|
| - if (induce_crash)
|
| - CHECK(false);
|
| - delete[] array;
|
| -}
|
| -#pragma warning(pop)
|
| -#endif // SYZYASAN && COMPILER_MSVC
|
| -
|
| -} // namespace
|
| -
|
| -#if defined(ADDRESS_SANITIZER) || defined(SYZYASAN)
|
| -// NOTE(sebmarchand): We intentionally perform some invalid heap access here in
|
| -// order to trigger an AddressSanitizer (ASan) error report.
|
| -
|
| -static const size_t kArraySize = 5;
|
| -
|
| -void AsanHeapOverflow() {
|
| - scoped_ptr<int[]> array(new int[kArraySize]);
|
| - // Declares the dummy value as volatile to make sure it doesn't get optimized
|
| - // away.
|
| - int volatile dummy = 0;
|
| - dummy = array[kArraySize];
|
| - base::debug::Alias(const_cast<int*>(&dummy));
|
| -}
|
| -
|
| -void AsanHeapUnderflow() {
|
| - scoped_ptr<int[]> array(new int[kArraySize]);
|
| - // Declares the dummy value as volatile to make sure it doesn't get optimized
|
| - // away.
|
| - int volatile dummy = 0;
|
| - // We need to store the underflow address in a temporary variable as trying to
|
| - // access array[-1] will trigger a warning C4245: "conversion from 'int' to
|
| - // 'size_t', signed/unsigned mismatch".
|
| - int* underflow_address = &array[0] - 1;
|
| - dummy = *underflow_address;
|
| - base::debug::Alias(const_cast<int*>(&dummy));
|
| -}
|
| -
|
| -void AsanHeapUseAfterFree() {
|
| - scoped_ptr<int[]> array(new int[kArraySize]);
|
| - // Declares the dummy value as volatile to make sure it doesn't get optimized
|
| - // away.
|
| - int volatile dummy = 0;
|
| - int* dangling = array.get();
|
| - array.reset();
|
| - dummy = dangling[kArraySize / 2];
|
| - base::debug::Alias(const_cast<int*>(&dummy));
|
| -}
|
| -
|
| -#endif // ADDRESS_SANITIZER || SYZYASAN
|
| -
|
| -#if defined(SYZYASAN) && defined(COMPILER_MSVC)
|
| -void AsanCorruptHeapBlock() {
|
| - CorruptMemoryBlock(false);
|
| -}
|
| -
|
| -void AsanCorruptHeap() {
|
| - CorruptMemoryBlock(true);
|
| -}
|
| -#endif // SYZYASAN && COMPILER_MSVC
|
| -
|
| -} // namespace debug
|
| -} // namespace base
|
|
|