mirror of
https://github.com/darlinghq/darling-JavaScriptCore.git
synced 2024-11-23 04:09:40 +00:00
117 lines
4.5 KiB
C++
117 lines
4.5 KiB
C++
/*
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* Copyright (C) 2017 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 "WasmModule.h"
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#if ENABLE(WEBASSEMBLY)
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#include "WasmLLIntPlan.h"
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#include "WasmModuleInformation.h"
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#include "WasmWorklist.h"
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namespace JSC { namespace Wasm {
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Module::Module(LLIntPlan& plan)
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: m_moduleInformation(plan.takeModuleInformation())
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, m_llintCallees(LLIntCallees::create(plan.takeCallees()))
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, m_llintEntryThunks(plan.takeEntryThunks())
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{
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}
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Module::~Module() { }
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Wasm::SignatureIndex Module::signatureIndexFromFunctionIndexSpace(unsigned functionIndexSpace) const
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{
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return m_moduleInformation->signatureIndexFromFunctionIndexSpace(functionIndexSpace);
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}
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static Module::ValidationResult makeValidationResult(LLIntPlan& plan)
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{
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ASSERT(!plan.hasWork());
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if (plan.failed())
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return Unexpected<String>(plan.errorMessage());
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return Module::ValidationResult(Module::create(plan));
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}
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static Plan::CompletionTask makeValidationCallback(Module::AsyncValidationCallback&& callback)
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{
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return createSharedTask<Plan::CallbackType>([callback = WTFMove(callback)] (Plan& plan) {
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ASSERT(!plan.hasWork());
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callback->run(makeValidationResult(static_cast<LLIntPlan&>(plan)));
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});
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}
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Module::ValidationResult Module::validateSync(Context* context, Vector<uint8_t>&& source)
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{
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Ref<LLIntPlan> plan = adoptRef(*new LLIntPlan(context, WTFMove(source), EntryPlan::Validation, Plan::dontFinalize()));
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Wasm::ensureWorklist().enqueue(plan.get());
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plan->waitForCompletion();
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return makeValidationResult(plan.get());
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}
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void Module::validateAsync(Context* context, Vector<uint8_t>&& source, Module::AsyncValidationCallback&& callback)
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{
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Ref<Plan> plan = adoptRef(*new LLIntPlan(context, WTFMove(source), EntryPlan::Validation, makeValidationCallback(WTFMove(callback))));
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Wasm::ensureWorklist().enqueue(WTFMove(plan));
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}
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Ref<CodeBlock> Module::getOrCreateCodeBlock(Context* context, MemoryMode mode)
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{
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RefPtr<CodeBlock> codeBlock;
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auto locker = holdLock(m_lock);
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codeBlock = m_codeBlocks[static_cast<uint8_t>(mode)];
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// If a previous attempt at a compile errored out, let's try again.
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// Compilations from valid modules can fail because OOM and cancellation.
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// It's worth retrying.
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// FIXME: We might want to back off retrying at some point:
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// https://bugs.webkit.org/show_bug.cgi?id=170607
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if (!codeBlock || (codeBlock->compilationFinished() && !codeBlock->runnable())) {
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RefPtr<LLIntCallees> llintCallees = nullptr;
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if (Options::useWasmLLInt())
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llintCallees = m_llintCallees;
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codeBlock = CodeBlock::create(context, mode, const_cast<ModuleInformation&>(moduleInformation()), llintCallees);
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m_codeBlocks[static_cast<uint8_t>(mode)] = codeBlock;
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}
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return codeBlock.releaseNonNull();
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}
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Ref<CodeBlock> Module::compileSync(Context* context, MemoryMode mode)
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{
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Ref<CodeBlock> codeBlock = getOrCreateCodeBlock(context, mode);
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codeBlock->waitUntilFinished();
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return codeBlock;
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}
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void Module::compileAsync(Context* context, MemoryMode mode, CodeBlock::AsyncCompilationCallback&& task)
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{
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Ref<CodeBlock> codeBlock = getOrCreateCodeBlock(context, mode);
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codeBlock->compileAsync(context, WTFMove(task));
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}
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} } // namespace JSC::Wasm
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#endif // ENABLE(WEBASSEMBLY)
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