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/*
* Copyright (C) 2015 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#ifndef ART_LIBARTBASE_BASE_MEMORY_TOOL_H_
#define ART_LIBARTBASE_BASE_MEMORY_TOOL_H_
#include <stddef.h>
namespace art {
#if !defined(__has_feature)
# define __has_feature(x) 0
#endif
#if __has_feature(address_sanitizer)
# include <sanitizer/asan_interface.h>
# define ADDRESS_SANITIZER
# ifdef ART_ENABLE_ADDRESS_SANITIZER
# define MEMORY_TOOL_MAKE_NOACCESS(p, s) __asan_poison_memory_region(p, s)
# define MEMORY_TOOL_MAKE_UNDEFINED(p, s) __asan_unpoison_memory_region(p, s)
# define MEMORY_TOOL_MAKE_DEFINED(p, s) __asan_unpoison_memory_region(p, s)
constexpr bool kMemoryToolIsAvailable = true;
# else
# define MEMORY_TOOL_MAKE_NOACCESS(p, s) do { (void)(p); (void)(s); } while (0)
# define MEMORY_TOOL_MAKE_UNDEFINED(p, s) do { (void)(p); (void)(s); } while (0)
# define MEMORY_TOOL_MAKE_DEFINED(p, s) do { (void)(p); (void)(s); } while (0)
constexpr bool kMemoryToolIsAvailable = false;
# endif
extern "C" void __asan_handle_no_return();
# define ATTRIBUTE_NO_SANITIZE_ADDRESS __attribute__((no_sanitize_address, noinline))
# define MEMORY_TOOL_HANDLE_NO_RETURN __asan_handle_no_return()
constexpr bool kRunningOnMemoryTool = true;
constexpr bool kMemoryToolDetectsLeaks = true;
constexpr bool kMemoryToolAddsRedzones = true;
constexpr size_t kMemoryToolStackGuardSizeScale = 2;
#else
# define MEMORY_TOOL_MAKE_NOACCESS(p, s) do { (void)(p); (void)(s); } while (0)
# define MEMORY_TOOL_MAKE_UNDEFINED(p, s) do { (void)(p); (void)(s); } while (0)
# define MEMORY_TOOL_MAKE_DEFINED(p, s) do { (void)(p); (void)(s); } while (0)
# define ATTRIBUTE_NO_SANITIZE_ADDRESS
# define MEMORY_TOOL_HANDLE_NO_RETURN do { } while (0)
constexpr bool kRunningOnMemoryTool = false;
constexpr bool kMemoryToolIsAvailable = false;
constexpr bool kMemoryToolDetectsLeaks = false;
constexpr bool kMemoryToolAddsRedzones = false;
constexpr size_t kMemoryToolStackGuardSizeScale = 1;
#endif
} // namespace art
#endif // ART_LIBARTBASE_BASE_MEMORY_TOOL_H_
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