// Copyright 2013 the V8 project authors. All rights reserved. // Use of this source code is governed by a BSD-style license that can be // found in the LICENSE file. // MemorySanitizer support. #ifndef V8_SANITIZER_MSAN_H_ #define V8_SANITIZER_MSAN_H_ #include "src/base/macros.h" #include "src/common/globals.h" #ifdef V8_USE_MEMORY_SANITIZER #include <sanitizer/msan_interface.h> // Marks a memory range as uninitialized, as if it was allocated here. #define MSAN_ALLOCATED_UNINITIALIZED_MEMORY(p, s) \ __msan_allocated_memory(reinterpret_cast<const void*>(p), (s)) // Marks a memory range as initialized. #define MSAN_MEMORY_IS_INITIALIZED(p, s) \ __msan_unpoison(reinterpret_cast<const void*>(p), (s)) #else // !V8_USE_MEMORY_SANITIZER #define MSAN_ALLOCATED_UNINITIALIZED_MEMORY(p, s) \ static_assert((std::is_pointer<decltype(p)>::value || \ std::is_same<v8::internal::Address, decltype(p)>::value) && \ std::is_convertible<decltype(s), size_t>::value, \ "static type violation") #define MSAN_MEMORY_IS_INITIALIZED(p, s) \ MSAN_ALLOCATED_UNINITIALIZED_MEMORY(p, s) #endif // V8_USE_MEMORY_SANITIZER #endif // V8_SANITIZER_MSAN_H_