blob: 637be6fde74715921559e6159b3717a89a0849a2 [file] [log] [blame]
/*
* Copyright (C) 2009-2018 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.
*/
#pragma once
#include "ExecutableBase.h"
#include "JSCPoison.h"
namespace JSC {
namespace DOMJIT {
class Signature;
}
class NativeExecutable final : public ExecutableBase {
friend class JIT;
friend class LLIntOffsetsExtractor;
public:
typedef ExecutableBase Base;
static const unsigned StructureFlags = Base::StructureFlags | StructureIsImmortal;
static NativeExecutable* create(VM&, Ref<JITCode>&& callThunk, TaggedNativeFunction, Ref<JITCode>&& constructThunk, TaggedNativeFunction constructor, Intrinsic, const DOMJIT::Signature*, const String& name);
static void destroy(JSCell*);
template<typename CellType>
static IsoSubspace* subspaceFor(VM& vm)
{
return &vm.nativeExecutableSpace;
}
CodeBlockHash hashFor(CodeSpecializationKind) const;
TaggedNativeFunction function() { return m_function.unpoisoned(); }
TaggedNativeFunction constructor() { return m_constructor.unpoisoned(); }
TaggedNativeFunction nativeFunctionFor(CodeSpecializationKind kind)
{
if (kind == CodeForCall)
return function();
ASSERT(kind == CodeForConstruct);
return constructor();
}
static ptrdiff_t offsetOfNativeFunctionFor(CodeSpecializationKind kind)
{
if (kind == CodeForCall)
return OBJECT_OFFSETOF(NativeExecutable, m_function);
ASSERT(kind == CodeForConstruct);
return OBJECT_OFFSETOF(NativeExecutable, m_constructor);
}
static Structure* createStructure(VM&, JSGlobalObject*, JSValue proto);
DECLARE_INFO;
const String& name() const { return m_name; }
const DOMJIT::Signature* signature() const { return m_signature; }
const DOMJIT::Signature* signatureFor(CodeSpecializationKind kind) const
{
if (isCall(kind))
return signature();
return nullptr;
}
protected:
void finishCreation(VM&, Ref<JITCode>&& callThunk, Ref<JITCode>&& constructThunk, const String& name);
private:
friend class ExecutableBase;
using PoisonedTaggedNativeFunction = Poisoned<NativeCodePoison, TaggedNativeFunction>;
NativeExecutable(VM&, TaggedNativeFunction, TaggedNativeFunction constructor, Intrinsic, const DOMJIT::Signature*);
PoisonedTaggedNativeFunction m_function;
PoisonedTaggedNativeFunction m_constructor;
const DOMJIT::Signature* m_signature;
String m_name;
};
} // namespace JSC