/* * Copyright (C) 2018-2020 Apple Inc. All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * * THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */ #include "config.h" #include "JSCPtrTag.h" #include "JSCConfig.h" namespace JSC { #if CPU(ARM64E) && ENABLE(PTRTAG_DEBUGGING) static const char* tagForPtr(const void* ptr) { #define RETURN_NAME_IF_TAG_MATCHES(tag) \ if (ptr == WTF::tagCodePtrImpl<WTF::PtrTagAction::NoAssert>(removeCodePtrTag(ptr), JSC::tag)) \ return #tag; FOR_EACH_JSC_PTRTAG(RETURN_NAME_IF_TAG_MATCHES) #undef RETURN_NAME_IF_TAG_MATCHES return nullptr; // Matching tag not found. } static const char* ptrTagName(PtrTag tag) { #define RETURN_PTRTAG_NAME(_tagName) case _tagName: return #_tagName; switch (static_cast<unsigned>(tag)) { FOR_EACH_JSC_PTRTAG(RETURN_PTRTAG_NAME) } #undef RETURN_PTRTAG_NAME return nullptr; // Matching tag not found. } void initializePtrTagLookup() { WTF::PtrTagLookup& lookup = g_jscConfig.ptrTagLookupRecord; lookup.initialize(tagForPtr, ptrTagName); WTF::registerPtrTagLookup(&lookup); } #endif // CPU(ARM64E) && ENABLE(PTRTAG_DEBUGGING) } // namespace JSC