// Copyright 2013 the V8 project authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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// MemorySanitizer support.
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#ifndef V8_MSAN_H_
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#define V8_MSAN_H_
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#include "src/base/macros.h"
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#include "src/globals.h"
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#ifdef V8_USE_MEMORY_SANITIZER
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#include <sanitizer/msan_interface.h>
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// Marks a memory range as uninitialized, as if it was allocated here.
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#define MSAN_ALLOCATED_UNINITIALIZED_MEMORY(p, s) \
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__msan_allocated_memory(reinterpret_cast<const void*>(p), (s))
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// Marks a memory range as initialized.
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#define MSAN_MEMORY_IS_INITIALIZED(p, s) \
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__msan_unpoison(reinterpret_cast<const void*>(p), (s))
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#else // !V8_USE_MEMORY_SANITIZER
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#define MSAN_ALLOCATED_UNINITIALIZED_MEMORY(p, s) \
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static_assert((std::is_pointer<decltype(p)>::value || \
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std::is_same<v8::internal::Address, decltype(p)>::value) && \
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std::is_convertible<decltype(s), size_t>::value, \
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"static type violation")
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#define MSAN_MEMORY_IS_INITIALIZED(p, s) \
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MSAN_ALLOCATED_UNINITIALIZED_MEMORY(p, s)
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#endif // V8_USE_MEMORY_SANITIZER
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#endif // V8_MSAN_H_
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