blob: 456dbbde91b47c314943a016a5acf0756acc2924 [file] [log] [blame]
/*
* Copyright (C) 2017 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 "WasmModule.h"
#if ENABLE(WEBASSEMBLY)
#include "WasmBBQPlan.h"
#include "WasmLLIntPlan.h"
#include "WasmModuleInformation.h"
#include "WasmWorklist.h"
namespace JSC { namespace Wasm {
Module::Module(LLIntPlan& plan)
: m_moduleInformation(plan.takeModuleInformation())
, m_llintCallees(LLIntCallees::create(plan.takeCallees()))
, m_llintEntryThunks(plan.takeEntryThunks())
{
}
Module::~Module() { }
Wasm::SignatureIndex Module::signatureIndexFromFunctionIndexSpace(unsigned functionIndexSpace) const
{
return m_moduleInformation->signatureIndexFromFunctionIndexSpace(functionIndexSpace);
}
static Module::ValidationResult makeValidationResult(LLIntPlan& plan)
{
ASSERT(!plan.hasWork());
if (plan.failed())
return Unexpected<String>(plan.errorMessage());
return Module::ValidationResult(Module::create(plan));
}
static Plan::CompletionTask makeValidationCallback(Module::AsyncValidationCallback&& callback)
{
return createSharedTask<Plan::CallbackType>([callback = WTFMove(callback)] (Plan& plan) {
ASSERT(!plan.hasWork());
callback->run(makeValidationResult(static_cast<LLIntPlan&>(plan)));
});
}
Module::ValidationResult Module::validateSync(Context* context, Vector<uint8_t>&& source)
{
Ref<LLIntPlan> plan = adoptRef(*new LLIntPlan(context, WTFMove(source), EntryPlan::Validation, Plan::dontFinalize()));
Wasm::ensureWorklist().enqueue(plan.get());
plan->waitForCompletion();
return makeValidationResult(plan.get());
}
void Module::validateAsync(Context* context, Vector<uint8_t>&& source, Module::AsyncValidationCallback&& callback)
{
Ref<Plan> plan = adoptRef(*new LLIntPlan(context, WTFMove(source), EntryPlan::Validation, makeValidationCallback(WTFMove(callback))));
Wasm::ensureWorklist().enqueue(WTFMove(plan));
}
Ref<CodeBlock> Module::getOrCreateCodeBlock(Context* context, MemoryMode mode)
{
RefPtr<CodeBlock> codeBlock;
auto locker = holdLock(m_lock);
codeBlock = m_codeBlocks[static_cast<uint8_t>(mode)];
// If a previous attempt at a compile errored out, let's try again.
// Compilations from valid modules can fail because OOM and cancellation.
// It's worth retrying.
// FIXME: We might want to back off retrying at some point:
// https://bugs.webkit.org/show_bug.cgi?id=170607
if (!codeBlock || (codeBlock->compilationFinished() && !codeBlock->runnable())) {
RefPtr<LLIntCallees> llintCallees = nullptr;
if (Options::useWasmLLInt())
llintCallees = m_llintCallees;
codeBlock = CodeBlock::create(context, mode, const_cast<ModuleInformation&>(moduleInformation()), llintCallees);
m_codeBlocks[static_cast<uint8_t>(mode)] = codeBlock;
}
return codeBlock.releaseNonNull();
}
Ref<CodeBlock> Module::compileSync(Context* context, MemoryMode mode)
{
Ref<CodeBlock> codeBlock = getOrCreateCodeBlock(context, mode);
codeBlock->waitUntilFinished();
return codeBlock;
}
void Module::compileAsync(Context* context, MemoryMode mode, CodeBlock::AsyncCompilationCallback&& task)
{
Ref<CodeBlock> codeBlock = getOrCreateCodeBlock(context, mode);
codeBlock->compileAsync(context, WTFMove(task));
}
} } // namespace JSC::Wasm
#endif // ENABLE(WEBASSEMBLY)