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/base/macros.h" 11 #include "src/globals.h" 12 13 #ifdef V8_USE_MEMORY_SANITIZER 14 15 #include <sanitizer/msan_interface.h> 16 17 // Marks a memory range as uninitialized, as if it was allocated here. 18 #define MSAN_ALLOCATED_UNINITIALIZED_MEMORY(p, s) \ 19 __msan_allocated_memory(reinterpret_cast<const void*>(p), (s)) 20 // Marks a memory range as initialized. 21 #define MSAN_MEMORY_IS_INITIALIZED(p, s) \ 22 __msan_unpoison(reinterpret_cast<const void*>(p), (s)) 23 24 #else // !V8_USE_MEMORY_SANITIZER 25 26 #define MSAN_ALLOCATED_UNINITIALIZED_MEMORY(p, s) \ 27 static_assert((std::is_pointer<decltype(p)>::value || \ 28 std::is_same<v8::internal::Address, decltype(p)>::value) && \ 29 std::is_convertible<decltype(s), size_t>::value, \ 30 "static type violation") 31 #define MSAN_MEMORY_IS_INITIALIZED(p, s) \ 32 MSAN_ALLOCATED_UNINITIALIZED_MEMORY(p, s) 33 34 #endif // V8_USE_MEMORY_SANITIZER 35 36 #endif // V8_MSAN_H_ 37
