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// Copyright 2015 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef THIRD_PARTY_BLINK_RENDERER_PLATFORM_WTF_SANITIZERS_H_
#define THIRD_PARTY_BLINK_RENDERER_PLATFORM_WTF_SANITIZERS_H_
#include "base/memory/asan_interface.h"
#if defined(ADDRESS_SANITIZER)
#include <sanitizer/asan_interface.h>
#endif
#if defined(ADDRESS_SANITIZER)
#define ASAN_REGION_IS_POISONED(addr, size) \
__asan_region_is_poisoned(addr, size)
#define NO_SANITIZE_ADDRESS __attribute__((no_sanitize_address))
class AsanUnpoisonScope {
public:
AsanUnpoisonScope(const void* addr, size_t size)
: addr_(addr), size_(size), was_poisoned_(false) {
if (!ASAN_REGION_IS_POISONED(const_cast<void*>(addr_), size_))
return;
ASAN_UNPOISON_MEMORY_REGION(addr_, size_);
was_poisoned_ = true;
}
~AsanUnpoisonScope() {
if (was_poisoned_)
ASAN_POISON_MEMORY_REGION(addr_, size_);
}
private:
const void* addr_;
size_t size_;
bool was_poisoned_;
};
#else
#define ASAN_REGION_IS_POISONED(addr, size) \
((void)(addr), (void)(size), (void*)nullptr)
#define NO_SANITIZE_ADDRESS
class AsanUnpoisonScope {
public:
AsanUnpoisonScope(const void*, size_t) {}
~AsanUnpoisonScope() {}
};
#endif
#if defined(LEAK_SANITIZER)
#include <sanitizer/lsan_interface.h>
#endif
#if defined(MEMORY_SANITIZER)
#include <sanitizer/msan_interface.h>
#define NO_SANITIZE_MEMORY __attribute__((no_sanitize_memory))
#else
#define NO_SANITIZE_MEMORY
#endif
#if defined(THREAD_SANITIZER)
#define NO_SANITIZE_THREAD __attribute__((no_sanitize_thread))
#else
#define NO_SANITIZE_THREAD
#endif
#if defined(__clang__)
#define NO_SANITIZE_HWADDRESS __attribute__((no_sanitize("hwaddress")))
#else
#define NO_SANITIZE_HWADDRESS
#endif
// NO_SANITIZE_UNRELATED_CAST - Disable runtime checks related to casts between
// unrelated objects (-fsanitize=cfi-unrelated-cast or -fsanitize=vptr).
#if defined(__clang__)
#define NO_SANITIZE_UNRELATED_CAST \
__attribute__((no_sanitize("cfi-unrelated-cast", "vptr")))
#define NO_SANITIZE_CFI_ICALL __attribute__((no_sanitize("cfi-icall")))
#else
#define NO_SANITIZE_UNRELATED_CAST
#define NO_SANITIZE_CFI_ICALL
#endif
#endif // THIRD_PARTY_BLINK_RENDERER_PLATFORM_WTF_SANITIZERS_H_
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