/* * Copyright (C) 2013-2016 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. */ #ifndef FTLAbstractHeapRepository_h #define FTLAbstractHeapRepository_h #if ENABLE(FTL_JIT) #include "B3Value.h" #include "DFGArrayMode.h" #include "FTLAbstractHeap.h" #include "IndexingType.h" namespace JSC { namespace FTL { #define FOR_EACH_ABSTRACT_HEAP(macro) \ macro(typedArrayProperties) #define FOR_EACH_ABSTRACT_FIELD(macro) \ macro(ArrayBuffer_data, ArrayBuffer::offsetOfData()) \ macro(Butterfly_arrayBuffer, Butterfly::offsetOfArrayBuffer()) \ macro(Butterfly_publicLength, Butterfly::offsetOfPublicLength()) \ macro(Butterfly_vectorLength, Butterfly::offsetOfVectorLength()) \ macro(CallFrame_callerFrame, CallFrame::callerFrameOffset()) \ macro(DirectArguments_callee, DirectArguments::offsetOfCallee()) \ macro(DirectArguments_length, DirectArguments::offsetOfLength()) \ macro(DirectArguments_minCapacity, DirectArguments::offsetOfMinCapacity()) \ macro(DirectArguments_overrides, DirectArguments::offsetOfOverrides()) \ macro(GetterSetter_getter, GetterSetter::offsetOfGetter()) \ macro(GetterSetter_setter, GetterSetter::offsetOfSetter()) \ macro(JSArrayBufferView_length, JSArrayBufferView::offsetOfLength()) \ macro(JSArrayBufferView_mode, JSArrayBufferView::offsetOfMode()) \ macro(JSArrayBufferView_vector, JSArrayBufferView::offsetOfVector()) \ macro(JSCell_cellState, JSCell::cellStateOffset()) \ macro(JSCell_header, 0) \ macro(JSCell_indexingType, JSCell::indexingTypeOffset()) \ macro(JSCell_structureID, JSCell::structureIDOffset()) \ macro(JSCell_typeInfoFlags, JSCell::typeInfoFlagsOffset()) \ macro(JSCell_typeInfoType, JSCell::typeInfoTypeOffset()) \ macro(JSCell_usefulBytes, JSCell::indexingTypeOffset()) \ macro(JSFunction_executable, JSFunction::offsetOfExecutable()) \ macro(JSFunction_scope, JSFunction::offsetOfScopeChain()) \ macro(JSFunction_rareData, JSFunction::offsetOfRareData()) \ macro(JSObject_butterfly, JSObject::butterflyOffset()) \ macro(JSPropertyNameEnumerator_cachedInlineCapacity, JSPropertyNameEnumerator::cachedInlineCapacityOffset()) \ macro(JSPropertyNameEnumerator_cachedPropertyNamesVector, JSPropertyNameEnumerator::cachedPropertyNamesVectorOffset()) \ macro(JSPropertyNameEnumerator_cachedStructureID, JSPropertyNameEnumerator::cachedStructureIDOffset()) \ macro(JSPropertyNameEnumerator_endGenericPropertyIndex, JSPropertyNameEnumerator::endGenericPropertyIndexOffset()) \ macro(JSPropertyNameEnumerator_endStructurePropertyIndex, JSPropertyNameEnumerator::endStructurePropertyIndexOffset()) \ macro(JSPropertyNameEnumerator_indexLength, JSPropertyNameEnumerator::indexedLengthOffset()) \ macro(JSScope_next, JSScope::offsetOfNext()) \ macro(JSString_flags, JSString::offsetOfFlags()) \ macro(JSString_length, JSString::offsetOfLength()) \ macro(JSString_value, JSString::offsetOfValue()) \ macro(JSSymbolTableObject_symbolTable, JSSymbolTableObject::offsetOfSymbolTable()) \ macro(JSWrapperObject_internalValue, JSWrapperObject::internalValueOffset()) \ macro(MarkedAllocator_freeListHead, MarkedAllocator::offsetOfFreeListHead()) \ macro(RegExpConstructor_cachedResult_lastRegExp, RegExpConstructor::offsetOfCachedResult() + RegExpCachedResult::offsetOfLastRegExp()) \ macro(RegExpConstructor_cachedResult_lastInput, RegExpConstructor::offsetOfCachedResult() + RegExpCachedResult::offsetOfLastInput()) \ macro(RegExpConstructor_cachedResult_result_start, RegExpConstructor::offsetOfCachedResult() + RegExpCachedResult::offsetOfResult() + OBJECT_OFFSETOF(MatchResult, start)) \ macro(RegExpConstructor_cachedResult_result_end, RegExpConstructor::offsetOfCachedResult() + RegExpCachedResult::offsetOfResult() + OBJECT_OFFSETOF(MatchResult, end)) \ macro(RegExpConstructor_cachedResult_reified, RegExpConstructor::offsetOfCachedResult() + RegExpCachedResult::offsetOfReified()) \ macro(RegExpObject_lastIndex, RegExpObject::offsetOfLastIndex()) \ macro(RegExpObject_lastIndexIsWritable, RegExpObject::offsetOfLastIndexIsWritable()) \ macro(ShadowChicken_Packet_callee, OBJECT_OFFSETOF(ShadowChicken::Packet, callee)) \ macro(ShadowChicken_Packet_frame, OBJECT_OFFSETOF(ShadowChicken::Packet, frame)) \ macro(ShadowChicken_Packet_callerFrame, OBJECT_OFFSETOF(ShadowChicken::Packet, callerFrame)) \ macro(ShadowChicken_Packet_thisValue, OBJECT_OFFSETOF(ShadowChicken::Packet, thisValue)) \ macro(ShadowChicken_Packet_scope, OBJECT_OFFSETOF(ShadowChicken::Packet, scope)) \ macro(ShadowChicken_Packet_codeBlock, OBJECT_OFFSETOF(ShadowChicken::Packet, codeBlock)) \ macro(ShadowChicken_Packet_callSiteIndex, OBJECT_OFFSETOF(ShadowChicken::Packet, callSiteIndex)) \ macro(ScopedArguments_overrodeThings, ScopedArguments::offsetOfOverrodeThings()) \ macro(ScopedArguments_scope, ScopedArguments::offsetOfScope()) \ macro(ScopedArguments_table, ScopedArguments::offsetOfTable()) \ macro(ScopedArguments_totalLength, ScopedArguments::offsetOfTotalLength()) \ macro(ScopedArgumentsTable_arguments, ScopedArgumentsTable::offsetOfArguments()) \ macro(ScopedArgumentsTable_length, ScopedArgumentsTable::offsetOfLength()) \ macro(StringImpl_data, StringImpl::dataOffset()) \ macro(StringImpl_hashAndFlags, StringImpl::flagsOffset()) \ macro(Structure_classInfo, Structure::classInfoOffset()) \ macro(Structure_globalObject, Structure::globalObjectOffset()) \ macro(Structure_prototype, Structure::prototypeOffset()) \ macro(Structure_structureID, Structure::structureIDOffset()) \ macro(Symbol_privateName, Symbol::offsetOfPrivateName()) #define FOR_EACH_INDEXED_ABSTRACT_HEAP(macro) \ macro(DirectArguments_storage, DirectArguments::storageOffset(), sizeof(EncodedJSValue)) \ macro(JSEnvironmentRecord_variables, JSEnvironmentRecord::offsetOfVariables(), sizeof(EncodedJSValue)) \ macro(JSPropertyNameEnumerator_cachedPropertyNamesVectorContents, 0, sizeof(WriteBarrier)) \ macro(JSRopeString_fibers, JSRopeString::offsetOfFibers(), sizeof(WriteBarrier)) \ macro(MarkedSpace_Subspace_impreciseAllocators, OBJECT_OFFSETOF(MarkedSpace::Subspace, impreciseAllocators), sizeof(MarkedAllocator)) \ macro(MarkedSpace_Subspace_preciseAllocators, OBJECT_OFFSETOF(MarkedSpace::Subspace, preciseAllocators), sizeof(MarkedAllocator)) \ macro(ScopedArguments_overflowStorage, ScopedArguments::overflowStorageOffset(), sizeof(EncodedJSValue)) \ macro(WriteBarrierBuffer_bufferContents, 0, sizeof(JSCell*)) \ macro(characters8, 0, sizeof(LChar)) \ macro(characters16, 0, sizeof(UChar)) \ macro(indexedInt32Properties, 0, sizeof(EncodedJSValue)) \ macro(indexedDoubleProperties, 0, sizeof(double)) \ macro(indexedContiguousProperties, 0, sizeof(EncodedJSValue)) \ macro(indexedArrayStorageProperties, 0, sizeof(EncodedJSValue)) \ macro(scopedArgumentsTableArguments, 0, sizeof(int32_t)) \ macro(singleCharacterStrings, 0, sizeof(JSString*)) \ macro(structureTable, 0, sizeof(Structure*)) \ macro(variables, 0, sizeof(Register)) #define FOR_EACH_NUMBERED_ABSTRACT_HEAP(macro) \ macro(properties) // This class is meant to be cacheable between compilations, but it doesn't have to be. // Doing so saves on creation of nodes. But clearing it will save memory. class AbstractHeapRepository { WTF_MAKE_NONCOPYABLE(AbstractHeapRepository); public: AbstractHeapRepository(); ~AbstractHeapRepository(); AbstractHeap root; #define ABSTRACT_HEAP_DECLARATION(name) AbstractHeap name; FOR_EACH_ABSTRACT_HEAP(ABSTRACT_HEAP_DECLARATION) #undef ABSTRACT_HEAP_DECLARATION #define ABSTRACT_FIELD_DECLARATION(name, offset) AbstractHeap name; FOR_EACH_ABSTRACT_FIELD(ABSTRACT_FIELD_DECLARATION) #undef ABSTRACT_FIELD_DECLARATION AbstractHeap& JSCell_freeListNext; #define INDEXED_ABSTRACT_HEAP_DECLARATION(name, offset, size) IndexedAbstractHeap name; FOR_EACH_INDEXED_ABSTRACT_HEAP(INDEXED_ABSTRACT_HEAP_DECLARATION) #undef INDEXED_ABSTRACT_HEAP_DECLARATION #define NUMBERED_ABSTRACT_HEAP_DECLARATION(name) NumberedAbstractHeap name; FOR_EACH_NUMBERED_ABSTRACT_HEAP(NUMBERED_ABSTRACT_HEAP_DECLARATION) #undef NUMBERED_ABSTRACT_HEAP_DECLARATION AbsoluteAbstractHeap absolute; IndexedAbstractHeap* forIndexingType(IndexingType indexingType) { switch (indexingType) { case ALL_BLANK_INDEXING_TYPES: case ALL_UNDECIDED_INDEXING_TYPES: return 0; case ALL_INT32_INDEXING_TYPES: return &indexedInt32Properties; case ALL_DOUBLE_INDEXING_TYPES: return &indexedDoubleProperties; case ALL_CONTIGUOUS_INDEXING_TYPES: return &indexedContiguousProperties; case ALL_ARRAY_STORAGE_INDEXING_TYPES: return &indexedArrayStorageProperties; default: RELEASE_ASSERT_NOT_REACHED(); return 0; } } IndexedAbstractHeap& forArrayType(DFG::Array::Type type) { switch (type) { case DFG::Array::Int32: return indexedInt32Properties; case DFG::Array::Double: return indexedDoubleProperties; case DFG::Array::Contiguous: return indexedContiguousProperties; case DFG::Array::ArrayStorage: case DFG::Array::SlowPutArrayStorage: return indexedArrayStorageProperties; default: RELEASE_ASSERT_NOT_REACHED(); return indexedInt32Properties; } } void decorateMemory(const AbstractHeap*, B3::Value*); void decorateCCallRead(const AbstractHeap*, B3::Value*); void decorateCCallWrite(const AbstractHeap*, B3::Value*); void decoratePatchpointRead(const AbstractHeap*, B3::Value*); void decoratePatchpointWrite(const AbstractHeap*, B3::Value*); void computeRangesAndDecorateInstructions(); private: struct HeapForValue { HeapForValue() { } HeapForValue(const AbstractHeap* heap, B3::Value* value) : heap(heap) , value(value) { } const AbstractHeap* heap { nullptr }; B3::Value* value { nullptr }; }; Vector m_heapForMemory; Vector m_heapForCCallRead; Vector m_heapForCCallWrite; Vector m_heapForPatchpointRead; Vector m_heapForPatchpointWrite; }; } } // namespace JSC::FTL #endif // ENABLE(FTL_JIT) #endif // FTLAbstractHeapRepository_h