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