1// Copyright 2013 the V8 project authors. All rights reserved. 2// Use of this source code is governed by a BSD-style license that can be 3// found in the LICENSE file. 4 5// MemorySanitizer support. 6 7#ifndef V8_MSAN_H_ 8#define V8_MSAN_H_ 9 10#include "src/globals.h" 11 12#ifndef __has_feature 13# define __has_feature(x) 0 14#endif 15 16#if __has_feature(memory_sanitizer) && !defined(MEMORY_SANITIZER) 17# define MEMORY_SANITIZER 18#endif 19 20#if defined(MEMORY_SANITIZER) 21# include <sanitizer/msan_interface.h> // NOLINT 22 23// Marks a memory range as uninitialized, as if it was allocated here. 24# define MSAN_ALLOCATED_UNINITIALIZED_MEMORY(p, s) \ 25 __msan_allocated_memory((p), (s)) 26// Marks a memory range as initialized. 27#define MSAN_MEMORY_IS_INITIALIZED(p, s) __msan_unpoison((p), (s)) 28#else 29# define MSAN_ALLOCATED_UNINITIALIZED_MEMORY(p, s) 30#define MSAN_MEMORY_IS_INITIALIZED(p, s) 31#endif 32 33#endif // V8_MSAN_H_ 34