| /* |
| * Copyright (C) 2012 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 "JITThunks.h" |
| |
| #if ENABLE(JIT) |
| |
| #include "Executable.h" |
| #include "JIT.h" |
| #include "JSGlobalData.h" |
| #include "Operations.h" |
| |
| namespace JSC { |
| |
| JITThunks::JITThunks() |
| : m_hostFunctionStubMap(adoptPtr(new HostFunctionStubMap)) |
| { |
| } |
| |
| JITThunks::~JITThunks() |
| { |
| } |
| |
| MacroAssemblerCodePtr JITThunks::ctiNativeCall(JSGlobalData* globalData) |
| { |
| #if ENABLE(LLINT) |
| if (!globalData->canUseJIT()) |
| return MacroAssemblerCodePtr::createLLIntCodePtr(llint_native_call_trampoline); |
| #endif |
| return ctiStub(globalData, nativeCallGenerator).code(); |
| } |
| MacroAssemblerCodePtr JITThunks::ctiNativeConstruct(JSGlobalData* globalData) |
| { |
| #if ENABLE(LLINT) |
| if (!globalData->canUseJIT()) |
| return MacroAssemblerCodePtr::createLLIntCodePtr(llint_native_construct_trampoline); |
| #endif |
| return ctiStub(globalData, nativeConstructGenerator).code(); |
| } |
| |
| MacroAssemblerCodeRef JITThunks::ctiStub(JSGlobalData* globalData, ThunkGenerator generator) |
| { |
| CTIStubMap::AddResult entry = m_ctiStubMap.add(generator, MacroAssemblerCodeRef()); |
| if (entry.isNewEntry) |
| entry.iterator->value = generator(globalData); |
| return entry.iterator->value; |
| } |
| |
| NativeExecutable* JITThunks::hostFunctionStub(JSGlobalData* globalData, NativeFunction function, NativeFunction constructor) |
| { |
| if (NativeExecutable* nativeExecutable = m_hostFunctionStubMap->get(function)) |
| return nativeExecutable; |
| |
| NativeExecutable* nativeExecutable = NativeExecutable::create(*globalData, JIT::compileCTINativeCall(globalData, function), function, MacroAssemblerCodeRef::createSelfManagedCodeRef(ctiNativeConstruct(globalData)), constructor, NoIntrinsic); |
| weakAdd(*m_hostFunctionStubMap, function, PassWeak<NativeExecutable>(nativeExecutable)); |
| return nativeExecutable; |
| } |
| |
| NativeExecutable* JITThunks::hostFunctionStub(JSGlobalData* globalData, NativeFunction function, ThunkGenerator generator, Intrinsic intrinsic) |
| { |
| if (NativeExecutable* nativeExecutable = m_hostFunctionStubMap->get(function)) |
| return nativeExecutable; |
| |
| MacroAssemblerCodeRef code; |
| if (generator) { |
| if (globalData->canUseJIT()) |
| code = generator(globalData); |
| else |
| code = MacroAssemblerCodeRef(); |
| } else |
| code = JIT::compileCTINativeCall(globalData, function); |
| |
| NativeExecutable* nativeExecutable = NativeExecutable::create(*globalData, code, function, MacroAssemblerCodeRef::createSelfManagedCodeRef(ctiNativeConstruct(globalData)), callHostFunctionAsConstructor, intrinsic); |
| weakAdd(*m_hostFunctionStubMap, function, PassWeak<NativeExecutable>(nativeExecutable)); |
| return nativeExecutable; |
| } |
| |
| void JITThunks::clearHostFunctionStubs() |
| { |
| m_hostFunctionStubMap.clear(); |
| } |
| |
| } // namespace JSC |
| |
| #endif // ENABLE(JIT) |