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cba1a09e5c
- Mark the outgoing arguments stack area as initialized. - Mark the trampoline's incoming parameter slots as initialized in case they are used as local handles. - Mark the outgoing register arguments as initialized. TEST=msan Bug: https://github.com/dart-lang/sdk/issues/42314 Bug: https://github.com/dart-lang/sdk/issues/49298 Bug: https://github.com/dart-lang/sdk/issues/49957 Change-Id: Ifa978e1b905a424ec9f64b89879cea6e82f70d12 Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/259102 Reviewed-by: Daco Harkes <dacoharkes@google.com> Commit-Queue: Ryan Macnak <rmacnak@google.com>
40 lines
1.9 KiB
C
40 lines
1.9 KiB
C
// 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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#ifndef RUNTIME_PLATFORM_MEMORY_SANITIZER_H_
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#define RUNTIME_PLATFORM_MEMORY_SANITIZER_H_
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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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#define USING_MEMORY_SANITIZER
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#endif
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#endif
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#if defined(USING_MEMORY_SANITIZER)
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extern "C" void __msan_poison(const volatile void*, size_t);
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extern "C" void __msan_unpoison(const volatile void*, size_t);
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extern "C" void __msan_unpoison_param(size_t);
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extern "C" void __msan_check_mem_is_initialized(const volatile void*, size_t);
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#define MSAN_POISON(ptr, len) __msan_poison(ptr, len)
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#define MSAN_UNPOISON(ptr, len) __msan_unpoison(ptr, len)
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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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#define NO_SANITIZE_MEMORY __attribute__((no_sanitize("memory")))
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#else // defined(USING_MEMORY_SANITIZER)
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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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#define MSAN_UNPOISON(ptr, len) \
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do { \
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} while (false && (ptr) == 0 && (len) == 0)
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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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#endif // defined(USING_MEMORY_SANITIZER)
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#endif // RUNTIME_PLATFORM_MEMORY_SANITIZER_H_
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