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164 lines (145 loc) · 6.78 KB
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/*
* 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 "WasmIPIntPlan.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::createFromVector(plan.takeCallees()))
, m_ipintCallees(IPIntCallees::create(0))
, m_wasmToJSExitStubs(plan.takeWasmToJSExitStubs())
{
}
Module::Module(IPIntPlan& plan)
: m_moduleInformation(plan.takeModuleInformation())
, m_llintCallees(LLIntCallees::create(0))
, m_ipintCallees(IPIntCallees::createFromVector(plan.takeCallees()))
, m_wasmToJSExitStubs(plan.takeWasmToJSExitStubs())
{
}
Module::~Module() = default;
Wasm::TypeIndex Module::typeIndexFromFunctionIndexSpace(unsigned functionIndexSpace) const
{
return m_moduleInformation->typeIndexFromFunctionIndexSpace(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 Module::ValidationResult makeValidationResult(IPIntPlan& 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());
if (Options::useWebAssemblyIPInt())
callback->run(makeValidationResult(static_cast<IPIntPlan&>(plan)));
else
callback->run(makeValidationResult(static_cast<LLIntPlan&>(plan)));
});
}
Module::ValidationResult Module::validateSync(VM& vm, Vector<uint8_t>&& source)
{
if (Options::useWebAssemblyIPInt()) {
Ref<IPIntPlan> plan = adoptRef(*new IPIntPlan(vm, WTFMove(source), CompilerMode::Validation, Plan::dontFinalize()));
Wasm::ensureWorklist().enqueue(plan.get());
plan->waitForCompletion();
return makeValidationResult(plan.get());
}
Ref<LLIntPlan> plan = adoptRef(*new LLIntPlan(vm, WTFMove(source), CompilerMode::Validation, Plan::dontFinalize()));
Wasm::ensureWorklist().enqueue(plan.get());
plan->waitForCompletion();
return makeValidationResult(plan.get());
}
void Module::validateAsync(VM& vm, Vector<uint8_t>&& source, Module::AsyncValidationCallback&& callback)
{
if (Options::useWebAssemblyIPInt()) {
Ref<Plan> plan = adoptRef(*new IPIntPlan(vm, WTFMove(source), CompilerMode::Validation, makeValidationCallback(WTFMove(callback))));
Wasm::ensureWorklist().enqueue(WTFMove(plan));
} else {
Ref<Plan> plan = adoptRef(*new LLIntPlan(vm, WTFMove(source), CompilerMode::Validation, makeValidationCallback(WTFMove(callback))));
Wasm::ensureWorklist().enqueue(WTFMove(plan));
}
}
Ref<CalleeGroup> Module::getOrCreateCalleeGroup(VM& vm, MemoryMode mode)
{
RefPtr<CalleeGroup> calleeGroup;
Locker locker { m_lock };
calleeGroup = m_calleeGroups[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 (!calleeGroup || (calleeGroup->compilationFinished() && !calleeGroup->runnable())) {
if (Options::useWebAssemblyIPInt())
m_calleeGroups[static_cast<uint8_t>(mode)] = calleeGroup = CalleeGroup::createFromIPInt(vm, mode, const_cast<ModuleInformation&>(moduleInformation()), m_ipintCallees.copyRef());
else if (Options::useWebAssemblyLLInt())
m_calleeGroups[static_cast<uint8_t>(mode)] = calleeGroup = CalleeGroup::createFromLLInt(vm, mode, const_cast<ModuleInformation&>(moduleInformation()), m_llintCallees.copyRef());
else
m_calleeGroups[static_cast<uint8_t>(mode)] = calleeGroup = CalleeGroup::createFromLLInt(vm, mode, const_cast<ModuleInformation&>(moduleInformation()), nullptr);
}
return calleeGroup.releaseNonNull();
}
Ref<CalleeGroup> Module::compileSync(VM& vm, MemoryMode mode)
{
Ref<CalleeGroup> calleeGroup = getOrCreateCalleeGroup(vm, mode);
calleeGroup->waitUntilFinished();
return calleeGroup;
}
void Module::compileAsync(VM& vm, MemoryMode mode, CalleeGroup::AsyncCompilationCallback&& task)
{
Ref<CalleeGroup> calleeGroup = getOrCreateCalleeGroup(vm, mode);
calleeGroup->compileAsync(vm, WTFMove(task));
}
void Module::copyInitialCalleeGroupToAllMemoryModes(MemoryMode initialMode)
{
Locker locker { m_lock };
ASSERT(m_calleeGroups[static_cast<uint8_t>(initialMode)]);
const CalleeGroup& initialBlock = *m_calleeGroups[static_cast<uint8_t>(initialMode)];
for (unsigned i = 0; i < numberOfMemoryModes; i++) {
if (i == static_cast<uint8_t>(initialMode))
continue;
// We should only try to copy the group here if it hasn't already been created.
// If it exists but is not runnable, it should get compiled during module evaluation.
if (auto& group = m_calleeGroups[i]; !group)
group = CalleeGroup::createFromExisting(static_cast<MemoryMode>(i), initialBlock);
}
}
} } // namespace JSC::Wasm
#endif // ENABLE(WEBASSEMBLY)