1/* 2 * Copyright (C) 2012 Apple Inc. All rights reserved. 3 * 4 * Redistribution and use in source and binary forms, with or without 5 * modification, are permitted provided that the following conditions 6 * are met: 7 * 1. Redistributions of source code must retain the above copyright 8 * notice, this list of conditions and the following disclaimer. 9 * 2. Redistributions in binary form must reproduce the above copyright 10 * notice, this list of conditions and the following disclaimer in the 11 * documentation and/or other materials provided with the distribution. 12 * 13 * THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY 14 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 15 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 16 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR 17 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, 18 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, 19 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR 20 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY 21 * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 22 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 23 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 24 */ 25 26#ifndef JITThunks_h 27#define JITThunks_h 28 29#include <wtf/Platform.h> 30 31#if ENABLE(JIT) 32 33#include "CallData.h" 34#include "Intrinsic.h" 35#include "LowLevelInterpreter.h" 36#include "MacroAssemblerCodeRef.h" 37#include "ThunkGenerator.h" 38#include "Weak.h" 39#include "WeakInlines.h" 40#include <wtf/HashMap.h> 41#include <wtf/OwnPtr.h> 42#include <wtf/RefPtr.h> 43 44namespace JSC { 45 46class VM; 47class NativeExecutable; 48 49class JITThunks { 50public: 51 JITThunks(); 52 ~JITThunks(); 53 54 MacroAssemblerCodePtr ctiNativeCall(VM*); 55 MacroAssemblerCodePtr ctiNativeConstruct(VM*); 56 57 MacroAssemblerCodeRef ctiStub(VM*, ThunkGenerator); 58 59 NativeExecutable* hostFunctionStub(VM*, NativeFunction, NativeFunction constructor); 60 NativeExecutable* hostFunctionStub(VM*, NativeFunction, ThunkGenerator, Intrinsic); 61 62 void clearHostFunctionStubs(); 63 64private: 65 typedef HashMap<ThunkGenerator, MacroAssemblerCodeRef> CTIStubMap; 66 CTIStubMap m_ctiStubMap; 67 typedef HashMap<std::pair<NativeFunction, NativeFunction>, Weak<NativeExecutable> > HostFunctionStubMap; 68 OwnPtr<HostFunctionStubMap> m_hostFunctionStubMap; 69}; 70 71} // namespace JSC 72 73#endif // ENABLE(JIT) 74 75#endif // JITThunks_h 76 77