mirror of
https://github.com/darlinghq/darling-JavaScriptCore.git
synced 2024-11-26 21:50:53 +00:00
74 lines
2.5 KiB
C++
74 lines
2.5 KiB
C++
/*
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* Copyright (C) 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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#pragma once
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#include "Options.h"
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#include <wtf/HashMap.h>
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#include <wtf/NeverDestroyed.h>
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#include <wtf/PtrTag.h>
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namespace JSC {
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class JITOperationList {
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public:
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static JITOperationList& instance();
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static void initialize();
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void* map(void* pointer) const
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{
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#if ENABLE(JIT_OPERATION_VALIDATION)
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return m_validatedOperations.get(removeCodePtrTag(pointer));
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#else
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return pointer;
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#endif
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}
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static void populatePointersInJavaScriptCore();
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static void populatePointersInJavaScriptCoreForLLInt();
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JS_EXPORT_PRIVATE static void populatePointersInEmbedder(const uintptr_t* beginOperations, const uintptr_t* endOperations);
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template<typename T> static void assertIsJITOperation(T function)
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{
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UNUSED_PARAM(function);
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#if ENABLE(JIT_OPERATION_VALIDATION)
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ASSERT(!Options::useJIT() || JITOperationList::instance().map(bitwise_cast<void*>(function)));
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#endif
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}
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private:
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HashMap<void*, void*> m_validatedOperations;
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};
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JS_EXPORT_PRIVATE extern LazyNeverDestroyed<JITOperationList> jitOperationList;
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inline JITOperationList& JITOperationList::instance()
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{
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return jitOperationList.get();
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}
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} // namespace JSC
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