| // Copyright (c) 2014, the Dart project authors. Please see the AUTHORS file |
| // for details. All rights reserved. Use of this source code is governed by a |
| // BSD-style license that can be found in the LICENSE file. |
| |
| #ifndef RUNTIME_PLATFORM_MEMORY_SANITIZER_H_ |
| #define RUNTIME_PLATFORM_MEMORY_SANITIZER_H_ |
| |
| #include "platform/globals.h" |
| |
| // Allow the use of Msan (MemorySanitizer). This is needed as Msan needs to be |
| // told about areas that are initialized by generated code. |
| #if defined(__has_feature) |
| #if __has_feature(memory_sanitizer) |
| #define USING_MEMORY_SANITIZER |
| #endif |
| #endif |
| |
| #if defined(USING_MEMORY_SANITIZER) |
| extern "C" void __msan_poison(const volatile void*, size_t); |
| extern "C" void __msan_unpoison(const volatile void*, size_t); |
| extern "C" void __msan_unpoison_param(size_t); |
| extern "C" void __msan_check_mem_is_initialized(const volatile void*, size_t); |
| #define MSAN_POISON(ptr, len) __msan_poison(ptr, len) |
| #define MSAN_UNPOISON(ptr, len) __msan_unpoison(ptr, len) |
| #define MSAN_CHECK_INITIALIZED(ptr, len) \ |
| __msan_check_mem_is_initialized(ptr, len) |
| #define NO_SANITIZE_MEMORY __attribute__((no_sanitize("memory"))) |
| #else // defined(USING_MEMORY_SANITIZER) |
| #define MSAN_POISON(ptr, len) \ |
| do { \ |
| } while (false && (ptr) == nullptr && (len) == 0) |
| #define MSAN_UNPOISON(ptr, len) \ |
| do { \ |
| } while (false && (ptr) == nullptr && (len) == 0) |
| #define MSAN_CHECK_INITIALIZED(ptr, len) \ |
| do { \ |
| } while (false && (ptr) == nullptr && (len) == 0) |
| #endif // defined(USING_MEMORY_SANITIZER) |
| |
| #endif // RUNTIME_PLATFORM_MEMORY_SANITIZER_H_ |