2014-12-23 01:07:58 +00:00
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// Copyright (c) 2014, the Dart project authors. Please see the AUTHORS file
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// for details. All rights reserved. Use of this source code is governed by a
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// BSD-style license that can be found in the LICENSE file.
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2016-10-26 07:26:03 +00:00
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#ifndef RUNTIME_PLATFORM_MEMORY_SANITIZER_H_
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#define RUNTIME_PLATFORM_MEMORY_SANITIZER_H_
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2014-12-23 01:07:58 +00:00
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#include "platform/globals.h"
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// Allow the use of Msan (MemorySanitizer). This is needed as Msan needs to be
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// told about areas that are initialized by generated code.
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#if defined(__has_feature)
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#if __has_feature(memory_sanitizer)
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2019-10-07 16:24:22 +00:00
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extern "C" void __msan_poison(const volatile void*, size_t);
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2019-07-16 19:46:56 +00:00
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extern "C" void __msan_unpoison(const volatile void*, size_t);
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2020-02-27 17:50:43 +00:00
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extern "C" void __msan_check_mem_is_initialized(const volatile void*, size_t);
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2019-10-07 16:24:22 +00:00
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#define MSAN_POISON(ptr, len) __msan_poison(ptr, len)
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2014-12-23 01:07:58 +00:00
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#define MSAN_UNPOISON(ptr, len) __msan_unpoison(ptr, len)
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2020-02-27 17:50:43 +00:00
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#define MSAN_CHECK_INITIALIZED(ptr, len) \
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__msan_check_mem_is_initialized(ptr, len)
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2019-10-09 23:38:30 +00:00
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#define NO_SANITIZE_MEMORY __attribute__((no_sanitize("memory")))
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2014-12-23 01:07:58 +00:00
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#else // __has_feature(memory_sanitizer)
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2019-10-07 16:24:22 +00:00
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#define MSAN_POISON(ptr, len) \
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do { \
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} while (false && (ptr) == 0 && (len) == 0)
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2016-11-03 21:25:16 +00:00
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#define MSAN_UNPOISON(ptr, len) \
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do { \
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} while (false && (ptr) == 0 && (len) == 0)
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2020-02-27 17:50:43 +00:00
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#define MSAN_CHECK_INITIALIZED(ptr, len) \
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do { \
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} while (false && (ptr) == 0 && (len) == 0)
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2016-10-05 23:54:18 +00:00
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#define NO_SANITIZE_MEMORY
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2014-12-23 01:07:58 +00:00
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#endif // __has_feature(memory_sanitizer)
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2016-11-03 21:25:16 +00:00
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#else // defined(__has_feature)
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2019-10-07 16:24:22 +00:00
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#define MSAN_POISON(ptr, len) \
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do { \
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} while (false && (ptr) == 0 && (len) == 0)
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2016-11-03 21:25:16 +00:00
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#define MSAN_UNPOISON(ptr, len) \
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do { \
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} while (false && (ptr) == 0 && (len) == 0)
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2020-02-27 17:50:43 +00:00
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#define MSAN_CHECK_INITIALIZED(ptr, len) \
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do { \
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} while (false && (ptr) == 0 && (len) == 0)
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2016-10-05 23:54:18 +00:00
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#define NO_SANITIZE_MEMORY
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2014-12-23 01:07:58 +00:00
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#endif // defined(__has_feature)
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2016-10-26 07:26:03 +00:00
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#endif // RUNTIME_PLATFORM_MEMORY_SANITIZER_H_
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