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295f920116
I wrote a script to do this which is attached to the bug. TBR=abarth@chromium.org BUG=435361 Review URL: https://codereview.chromium.org/736373003
92 lines
3.3 KiB
C++
92 lines
3.3 KiB
C++
/*
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* Copyright (C) 2013 Google Inc. All rights reserved.
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* Copyright (C) 2013 Samsung Electronics. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are
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* met:
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*
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* * Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* * Redistributions in binary form must reproduce the above
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* copyright notice, this list of conditions and the following disclaimer
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* in the documentation and/or other materials provided with the
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* distribution.
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* * Neither the name of Google Inc. nor the names of its
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* contributors may be used to endorse or promote products derived from
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* this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#ifndef SKY_ENGINE_WTF_LEAKANNOTATIONS_H_
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#define SKY_ENGINE_WTF_LEAKANNOTATIONS_H_
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// This file defines macros which can be used to annotate intentional memory
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// leaks. Support for annotations is implemented in HeapChecker and
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// LeakSanitizer. Annotated objects will be treated as a source of live
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// pointers, i.e. any heap objects reachable by following pointers from an
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// annotated object will not be reported as leaks.
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//
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// WTF_ANNOTATE_SCOPED_MEMORY_LEAK: all allocations made in the current scope
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// will be annotated as leaks.
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// WTF_ANNOTATE_LEAKING_OBJECT_PTR(X): the heap object referenced by pointer X
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// will be annotated as a leak.
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//
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// Note that HeapChecker will report a fatal error if an object which has been
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// annotated with ANNOTATE_LEAKING_OBJECT_PTR is later deleted (but
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// LeakSanitizer won't).
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#include "sky/engine/wtf/Noncopyable.h"
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namespace WTF {
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#if USE(LEAK_SANITIZER)
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extern "C" {
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void __lsan_disable();
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void __lsan_enable();
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void __lsan_ignore_object(const void *p);
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} // extern "C"
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class LeakSanitizerDisabler {
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WTF_MAKE_NONCOPYABLE(LeakSanitizerDisabler);
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public:
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LeakSanitizerDisabler()
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{
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__lsan_disable();
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}
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~LeakSanitizerDisabler()
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{
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__lsan_enable();
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}
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};
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#define WTF_ANNOTATE_SCOPED_MEMORY_LEAK \
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WTF::LeakSanitizerDisabler leakSanitizerDisabler; static_cast<void>(0)
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#define WTF_ANNOTATE_LEAKING_OBJECT_PTR(X) \
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WTF::__lsan_ignore_object(X)
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#else // USE(LEAK_SANITIZER)
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// If Leak Sanitizer is not being used, the annotations should be no-ops.
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#define WTF_ANNOTATE_SCOPED_MEMORY_LEAK
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#define WTF_ANNOTATE_LEAKING_OBJECT_PTR(X)
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#endif // USE(LEAK_SANITIZER)
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} // namespace WTF
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#endif // SKY_ENGINE_WTF_LEAKANNOTATIONS_H_
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