mirror of
https://github.com/darlinghq/darling-JavaScriptCore.git
synced 2025-04-07 17:31:46 +00:00
261 lines
10 KiB
C++
261 lines
10 KiB
C++
/*
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* Copyright (C) 2012-2020 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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#include "config.h"
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#include "LLIntEntrypoint.h"
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#include "CodeBlock.h"
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#include "HeapInlines.h"
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#include "JITCode.h"
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#include "LLIntData.h"
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#include "LLIntThunks.h"
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#include "MaxFrameExtentForSlowPathCall.h"
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#include "StackAlignment.h"
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#ifdef DARLING
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#include "JSCellInlines.h"
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#endif
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namespace JSC { namespace LLInt {
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#if CPU(ARM64E)
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extern "C" void jsTrampolineProgramPrologue(void);
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extern "C" void jsTrampolineModuleProgramPrologue(void);
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extern "C" void jsTrampolineEvalPrologue(void);
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extern "C" void jsTrampolineFunctionForCallPrologue(void);
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extern "C" void jsTrampolineFunctionForConstructPrologue(void);
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extern "C" void jsTrampolineFunctionForCallArityCheckPrologue(void);
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extern "C" void jsTrampolineFunctionForConstructArityCheckPrologue(void);
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template<typename PtrType>
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static MacroAssemblerCodeRef<JSEntryPtrTag> entrypointTrampoline(PtrType address)
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{
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return MacroAssemblerCodeRef<JSEntryPtrTag>::createSelfManagedCodeRef(MacroAssemblerCodePtr<JSEntryPtrTag>::createFromExecutableAddress(retagCodePtr<void*, CFunctionPtrTag, JSEntryPtrTag>(address)));
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}
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#endif
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static void setFunctionEntrypoint(CodeBlock* codeBlock)
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{
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CodeSpecializationKind kind = codeBlock->specializationKind();
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#if ENABLE(JIT)
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if (Options::useJIT()) {
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if (kind == CodeForCall) {
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static DirectJITCode* jitCode;
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static std::once_flag onceKey;
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std::call_once(onceKey, [&] {
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auto callRef = functionForCallEntryThunk();
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auto callArityCheckRef = functionForCallArityCheckThunk();
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jitCode = new DirectJITCode(callRef, callArityCheckRef.code(), JITType::InterpreterThunk, JITCode::ShareAttribute::Shared);
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});
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codeBlock->setJITCode(makeRef(*jitCode));
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return;
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}
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ASSERT(kind == CodeForConstruct);
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static DirectJITCode* jitCode;
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static std::once_flag onceKey;
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std::call_once(onceKey, [&] {
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auto constructRef = functionForConstructEntryThunk();
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auto constructArityCheckRef = functionForConstructArityCheckThunk();
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jitCode = new DirectJITCode(constructRef, constructArityCheckRef.code(), JITType::InterpreterThunk, JITCode::ShareAttribute::Shared);
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});
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codeBlock->setJITCode(makeRef(*jitCode));
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return;
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}
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#endif // ENABLE(JIT)
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if (kind == CodeForCall) {
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static DirectJITCode* jitCode;
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static std::once_flag onceKey;
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std::call_once(onceKey, [&] {
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#if CPU(ARM64E)
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jitCode = new DirectJITCode(entrypointTrampoline(jsTrampolineFunctionForCallPrologue), entrypointTrampoline(jsTrampolineFunctionForCallArityCheckPrologue).code(), JITType::InterpreterThunk, JITCode::ShareAttribute::Shared);
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#else
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jitCode = new DirectJITCode(getCodeRef<JSEntryPtrTag>(llint_function_for_call_prologue), getCodePtr<JSEntryPtrTag>(llint_function_for_call_arity_check), JITType::InterpreterThunk, JITCode::ShareAttribute::Shared);
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#endif
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});
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codeBlock->setJITCode(makeRef(*jitCode));
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} else {
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static DirectJITCode* jitCode;
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static std::once_flag onceKey;
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std::call_once(onceKey, [&] {
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#if CPU(ARM64E)
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jitCode = new DirectJITCode(entrypointTrampoline(jsTrampolineFunctionForConstructPrologue), entrypointTrampoline(jsTrampolineFunctionForConstructArityCheckPrologue).code(), JITType::InterpreterThunk, JITCode::ShareAttribute::Shared);
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#else
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jitCode = new DirectJITCode(getCodeRef<JSEntryPtrTag>(llint_function_for_construct_prologue), getCodePtr<JSEntryPtrTag>(llint_function_for_construct_arity_check), JITType::InterpreterThunk, JITCode::ShareAttribute::Shared);
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#endif
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});
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codeBlock->setJITCode(makeRef(*jitCode));
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}
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}
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static void setEvalEntrypoint(CodeBlock* codeBlock)
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{
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#if ENABLE(JIT)
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if (Options::useJIT()) {
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static NativeJITCode* jitCode;
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static std::once_flag onceKey;
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std::call_once(onceKey, [&] {
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MacroAssemblerCodeRef<JSEntryPtrTag> codeRef = evalEntryThunk();
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jitCode = new NativeJITCode(codeRef, JITType::InterpreterThunk, Intrinsic::NoIntrinsic, JITCode::ShareAttribute::Shared);
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});
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codeBlock->setJITCode(makeRef(*jitCode));
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return;
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}
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#endif // ENABLE(JIT)
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static NativeJITCode* jitCode;
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static std::once_flag onceKey;
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std::call_once(onceKey, [&] {
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#if CPU(ARM64E)
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jitCode = new NativeJITCode(entrypointTrampoline(jsTrampolineEvalPrologue), JITType::InterpreterThunk, Intrinsic::NoIntrinsic, JITCode::ShareAttribute::Shared);
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#else
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jitCode = new NativeJITCode(getCodeRef<JSEntryPtrTag>(llint_eval_prologue), JITType::InterpreterThunk, Intrinsic::NoIntrinsic, JITCode::ShareAttribute::Shared);
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#endif
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});
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codeBlock->setJITCode(makeRef(*jitCode));
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}
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static void setProgramEntrypoint(CodeBlock* codeBlock)
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{
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#if ENABLE(JIT)
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if (Options::useJIT()) {
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static NativeJITCode* jitCode;
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static std::once_flag onceKey;
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std::call_once(onceKey, [&] {
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MacroAssemblerCodeRef<JSEntryPtrTag> codeRef = programEntryThunk();
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jitCode = new NativeJITCode(codeRef, JITType::InterpreterThunk, Intrinsic::NoIntrinsic, JITCode::ShareAttribute::Shared);
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});
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codeBlock->setJITCode(makeRef(*jitCode));
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return;
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}
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#endif // ENABLE(JIT)
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static NativeJITCode* jitCode;
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static std::once_flag onceKey;
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std::call_once(onceKey, [&] {
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#if CPU(ARM64E)
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jitCode = new NativeJITCode(entrypointTrampoline(jsTrampolineProgramPrologue), JITType::InterpreterThunk, Intrinsic::NoIntrinsic, JITCode::ShareAttribute::Shared);
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#else
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jitCode = new NativeJITCode(getCodeRef<JSEntryPtrTag>(llint_program_prologue), JITType::InterpreterThunk, Intrinsic::NoIntrinsic, JITCode::ShareAttribute::Shared);
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#endif
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});
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codeBlock->setJITCode(makeRef(*jitCode));
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}
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static void setModuleProgramEntrypoint(CodeBlock* codeBlock)
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{
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#if ENABLE(JIT)
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if (Options::useJIT()) {
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static NativeJITCode* jitCode;
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static std::once_flag onceKey;
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std::call_once(onceKey, [&] {
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MacroAssemblerCodeRef<JSEntryPtrTag> codeRef = moduleProgramEntryThunk();
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jitCode = new NativeJITCode(codeRef, JITType::InterpreterThunk, Intrinsic::NoIntrinsic, JITCode::ShareAttribute::Shared);
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});
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codeBlock->setJITCode(makeRef(*jitCode));
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return;
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}
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#endif // ENABLE(JIT)
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static NativeJITCode* jitCode;
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static std::once_flag onceKey;
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std::call_once(onceKey, [&] {
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#if CPU(ARM64E)
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jitCode = new NativeJITCode(entrypointTrampoline(jsTrampolineModuleProgramPrologue), JITType::InterpreterThunk, Intrinsic::NoIntrinsic, JITCode::ShareAttribute::Shared);
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#else
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jitCode = new NativeJITCode(getCodeRef<JSEntryPtrTag>(llint_module_program_prologue), JITType::InterpreterThunk, Intrinsic::NoIntrinsic, JITCode::ShareAttribute::Shared);
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#endif
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});
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codeBlock->setJITCode(makeRef(*jitCode));
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}
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MacroAssemblerCodeRef<JSEntryPtrTag> getHostCallReturnValueEntrypoint()
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{
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#if ENABLE(JIT)
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if (Options::useJIT())
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return getHostCallReturnValueThunk();
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#endif // ENABLE(JIT)
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return LLInt::getCodeRef<JSEntryPtrTag>(llint_get_host_call_return_value);
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}
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MacroAssemblerCodeRef<JSEntryPtrTag> fuzzerReturnEarlyFromLoopHintEntrypoint()
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{
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#if ENABLE(JIT)
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if (Options::useJIT())
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return fuzzerReturnEarlyFromLoopHintThunk();
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#endif // ENABLE(JIT)
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return LLInt::getCodeRef<JSEntryPtrTag>(fuzzer_return_early_from_loop_hint);
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}
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MacroAssemblerCodeRef<JSEntryPtrTag> genericReturnPointEntrypoint(OpcodeSize size)
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{
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#if ENABLE(JIT)
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if (Options::useJIT())
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return genericReturnPointThunk(size);
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#endif // ENABLE(JIT)
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switch (size) {
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case OpcodeSize::Narrow:
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return LLInt::getCodeRef<JSEntryPtrTag>(llint_generic_return_point);
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case OpcodeSize::Wide16:
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return LLInt::getWide16CodeRef<JSEntryPtrTag>(llint_generic_return_point);
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case OpcodeSize::Wide32:
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return LLInt::getWide32CodeRef<JSEntryPtrTag>(llint_generic_return_point);
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}
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RELEASE_ASSERT_NOT_REACHED();
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return { };
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}
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void setEntrypoint(CodeBlock* codeBlock)
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{
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switch (codeBlock->codeType()) {
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case GlobalCode:
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setProgramEntrypoint(codeBlock);
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return;
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case ModuleCode:
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setModuleProgramEntrypoint(codeBlock);
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return;
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case EvalCode:
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setEvalEntrypoint(codeBlock);
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return;
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case FunctionCode:
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setFunctionEntrypoint(codeBlock);
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return;
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}
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RELEASE_ASSERT_NOT_REACHED();
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}
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unsigned frameRegisterCountFor(CodeBlock* codeBlock)
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{
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ASSERT(static_cast<unsigned>(codeBlock->numCalleeLocals()) == WTF::roundUpToMultipleOf(stackAlignmentRegisters(), static_cast<unsigned>(codeBlock->numCalleeLocals())));
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return roundLocalRegisterCountForFramePointerOffset(codeBlock->numCalleeLocals() + maxFrameExtentForSlowPathCallInRegisters);
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}
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} } // namespace JSC::LLInt
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