// 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 PLATFORM_ADDRESS_SANITIZER_H_
#define PLATFORM_ADDRESS_SANITIZER_H_

#include "platform/globals.h"

// Allow the use of ASan (AddressSanitizer). This is needed as ASan needs to be
// told about areas where the VM does the equivalent of a long-jump.
#if defined(__has_feature)
#if __has_feature(address_sanitizer)
extern "C" void __asan_unpoison_memory_region(void *, size_t);
#define ASAN_UNPOISON(ptr, len) __asan_unpoison_memory_region(ptr, len)
#else  // __has_feature(address_sanitizer)
#define ASAN_UNPOISON(ptr, len) do {} while (false && (ptr) == 0 && (len) == 0)
#endif  // __has_feature(address_sanitizer)
#else  // defined(__has_feature)
#define ASAN_UNPOISON(ptr, len) do {} while (false && (ptr) == 0 && (len) == 0)
#endif  // defined(__has_feature)

#endif  // PLATFORM_ADDRESS_SANITIZER_H_