dart-sdk/runtime/platform/address_sanitizer.h
Ryan Macnak 71ecb73a2b [vm] Fix one MSAN failure; add UBSAN configuration.
Change-Id: I5b1d43836f3eb09983195fc3792f369aa3f8079f
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/120750
Reviewed-by: Chinmay Garde <chinmaygarde@google.com>
Commit-Queue: Ryan Macnak <rmacnak@google.com>
2019-10-09 23:38:30 +00:00

42 lines
2 KiB
C

// 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_ADDRESS_SANITIZER_H_
#define RUNTIME_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)
#define USING_ADDRESS_SANITIZER
#endif
#endif
#if defined(USING_ADDRESS_SANITIZER)
extern "C" void __asan_unpoison_memory_region(void*, size_t);
extern "C" void __lsan_register_root_region(const void* p, size_t size);
extern "C" void __lsan_unregister_root_region(const void* p, size_t size);
#define NO_SANITIZE_ADDRESS __attribute__((no_sanitize("address")))
#define ASAN_UNPOISON(ptr, len) __asan_unpoison_memory_region(ptr, len)
#define LSAN_REGISTER_ROOT_REGION(ptr, len) \
__lsan_register_root_region(ptr, len)
#define LSAN_UNREGISTER_ROOT_REGION(ptr, len) \
__lsan_unregister_root_region(ptr, len)
#else // __has_feature(address_sanitizer)
#define NO_SANITIZE_ADDRESS
#define ASAN_UNPOISON(ptr, len) \
do { \
} while (false && (ptr) == 0 && (len) == 0)
#define LSAN_REGISTER_ROOT_REGION(ptr, len) \
do { \
} while (false && (ptr) == 0 && (len) == 0)
#define LSAN_UNREGISTER_ROOT_REGION(ptr, len) \
do { \
} while (false && (ptr) == 0 && (len) == 0)
#endif // defined(USING_ADDRESS_SANITIZER)
#endif // RUNTIME_PLATFORM_ADDRESS_SANITIZER_H_