93 lines
3.0 KiB
C++
93 lines
3.0 KiB
C++
/*
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* Copyright (C) 2018-2020 Apple Inc. 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
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* are met:
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* 1. 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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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY
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* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR
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* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
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* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
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* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
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* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
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* 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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#include "config.h"
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#include <wtf/PtrTag.h>
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#include <wtf/WTFConfig.h>
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namespace WTF {
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#if CPU(ARM64E) && ENABLE(PTRTAG_DEBUGGING)
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const char* tagForPtr(const void* ptr)
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{
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PtrTagLookup* lookup = g_wtfConfig.ptrTagLookupHead;
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while (lookup) {
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const char* tagName = lookup->tagForPtr(ptr);
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if (tagName)
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return tagName;
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lookup = lookup->next;
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}
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if (ptr == removeCodePtrTag(ptr))
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return "NoPtrTag";
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#define RETURN_NAME_IF_TAG_MATCHES(tag) \
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if (ptr == tagCodePtrImpl<PtrTagAction::NoAssert, tag>(removeCodePtrTag(ptr))) \
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return #tag;
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FOR_EACH_WTF_PTRTAG(RETURN_NAME_IF_TAG_MATCHES)
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#undef RETURN_NAME_IF_TAG_MATCHES
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return "<unknown PtrTag>";
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}
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const char* ptrTagName(PtrTag tag)
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{
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PtrTagLookup* lookup = g_wtfConfig.ptrTagLookupHead;
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while (lookup) {
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const char* tagName = lookup->ptrTagName(tag);
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if (tagName)
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return tagName;
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lookup = lookup->next;
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}
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#define RETURN_WTF_PTRTAG_NAME(_tagName) case _tagName: return #_tagName;
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switch (tag) {
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FOR_EACH_WTF_PTRTAG(RETURN_WTF_PTRTAG_NAME)
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default: return "<unknown>";
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}
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#undef RETURN_WTF_PTRTAG_NAME
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}
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void registerPtrTagLookup(PtrTagLookup* lookup)
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{
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lookup->next = g_wtfConfig.ptrTagLookupHead;
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g_wtfConfig.ptrTagLookupHead = lookup;
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}
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void reportBadTag(const void* ptr, PtrTag expectedTag)
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{
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dataLog("PtrTag ASSERTION FAILED on pointer ", RawPointer(ptr), ", actual tag = ", tagForPtr(ptr));
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if (expectedTag == AnyPtrTag)
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dataLogLn(", expected any tag but NoPtrTag");
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else
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dataLogLn(", expected tag = ", ptrTagName(expectedTag));
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}
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#endif // CPU(ARM64E) && ENABLE(PTRTAG_DEBUGGING)
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} // namespace WTF
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