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/*
* Copyright (C) 2012, 2013 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.
*/
#ifndef JITThunks_h
#define JITThunks_h
#if ENABLE(JIT)
#include "CallData.h"
#include "Intrinsic.h"
#include "LowLevelInterpreter.h"
#include "MacroAssemblerCodeRef.h"
#include "ThunkGenerator.h"
#include "Weak.h"
#include "WeakHandleOwner.h"
#include "WeakInlines.h"
#include <wtf/HashMap.h>
#include <wtf/RefPtr.h>
#include <wtf/ThreadingPrimitives.h>
namespace JSC {
class VM;
class NativeExecutable;
class JITThunks final : private WeakHandleOwner {
WTF_MAKE_FAST_ALLOCATED;
public:
JITThunks();
virtual ~JITThunks();
MacroAssemblerCodePtr ctiNativeCall(VM*);
MacroAssemblerCodePtr ctiNativeConstruct(VM*);
MacroAssemblerCodePtr ctiNativeTailCall(VM*);
MacroAssemblerCodeRef ctiStub(VM*, ThunkGenerator);
NativeExecutable* hostFunctionStub(VM*, NativeFunction, NativeFunction constructor, const String& name);
NativeExecutable* hostFunctionStub(VM*, NativeFunction, ThunkGenerator, Intrinsic, const String& name);
void clearHostFunctionStubs();
private:
void finalize(Handle<Unknown>, void* context) override;
typedef HashMap<ThunkGenerator, MacroAssemblerCodeRef> CTIStubMap;
CTIStubMap m_ctiStubMap;
typedef HashMap<std::pair<NativeFunction, NativeFunction>, Weak<NativeExecutable>> HostFunctionStubMap;
std::unique_ptr<HostFunctionStubMap> m_hostFunctionStubMap;
Lock m_lock;
};
} // namespace JSC
#endif // ENABLE(JIT)
#endif // JITThunks_h
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