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1 // Copyright 2012 the V8 project authors. All rights reserved. | 1 // Copyright 2012 the V8 project authors. All rights reserved. |
2 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
4 | 4 |
5 #ifndef V8_HEAP_HEAP_H_ | 5 #ifndef V8_HEAP_HEAP_H_ |
6 #define V8_HEAP_HEAP_H_ | 6 #define V8_HEAP_HEAP_H_ |
7 | 7 |
8 #include <cmath> | 8 #include <cmath> |
9 #include <map> | 9 #include <map> |
10 | 10 |
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182 EmptySlowElementDictionary) \ | 182 EmptySlowElementDictionary) \ |
183 V(FixedArray, materialized_objects, MaterializedObjects) \ | 183 V(FixedArray, materialized_objects, MaterializedObjects) \ |
184 V(FixedArray, microtask_queue, MicrotaskQueue) \ | 184 V(FixedArray, microtask_queue, MicrotaskQueue) \ |
185 V(TypeFeedbackVector, dummy_vector, DummyVector) \ | 185 V(TypeFeedbackVector, dummy_vector, DummyVector) \ |
186 V(FixedArray, empty_literals_array, EmptyLiteralsArray) \ | 186 V(FixedArray, empty_literals_array, EmptyLiteralsArray) \ |
187 V(FixedArray, empty_sloppy_arguments_elements, EmptySloppyArgumentsElements) \ | 187 V(FixedArray, empty_sloppy_arguments_elements, EmptySloppyArgumentsElements) \ |
188 V(FixedArray, cleared_optimized_code_map, ClearedOptimizedCodeMap) \ | 188 V(FixedArray, cleared_optimized_code_map, ClearedOptimizedCodeMap) \ |
189 V(FixedArray, detached_contexts, DetachedContexts) \ | 189 V(FixedArray, detached_contexts, DetachedContexts) \ |
190 V(ArrayList, retained_maps, RetainedMaps) \ | 190 V(ArrayList, retained_maps, RetainedMaps) \ |
191 V(WeakHashTable, weak_object_to_code_table, WeakObjectToCodeTable) \ | 191 V(WeakHashTable, weak_object_to_code_table, WeakObjectToCodeTable) \ |
192 /* weak_new_space_object_to_code_list is an array of weak cells, where */ \ | |
193 /* slots with even indices refer to the weak object, and the subsequent */ \ | |
194 /* slots refer to the code with the reference to the weak object. */ \ | |
195 V(ArrayList, weak_new_space_object_to_code_list, \ | |
196 WeakNewSpaceObjectToCodeList) \ | |
197 V(PropertyCell, array_protector, ArrayProtector) \ | 192 V(PropertyCell, array_protector, ArrayProtector) \ |
198 V(Cell, is_concat_spreadable_protector, IsConcatSpreadableProtector) \ | 193 V(Cell, is_concat_spreadable_protector, IsConcatSpreadableProtector) \ |
199 V(PropertyCell, empty_property_cell, EmptyPropertyCell) \ | 194 V(PropertyCell, empty_property_cell, EmptyPropertyCell) \ |
200 V(Object, weak_stack_trace_list, WeakStackTraceList) \ | 195 V(Object, weak_stack_trace_list, WeakStackTraceList) \ |
201 V(Object, noscript_shared_function_infos, NoScriptSharedFunctionInfos) \ | 196 V(Object, noscript_shared_function_infos, NoScriptSharedFunctionInfos) \ |
202 V(Map, bytecode_array_map, BytecodeArrayMap) \ | 197 V(Map, bytecode_array_map, BytecodeArrayMap) \ |
203 V(WeakCell, empty_weak_cell, EmptyWeakCell) \ | 198 V(WeakCell, empty_weak_cell, EmptyWeakCell) \ |
204 V(PropertyCell, has_instance_protector, HasInstanceProtector) \ | 199 V(PropertyCell, has_instance_protector, HasInstanceProtector) \ |
205 V(Cell, species_protector, SpeciesProtector) \ | 200 V(Cell, species_protector, SpeciesProtector) \ |
206 V(FixedArray, serialized_templates, SerializedTemplates) | 201 V(FixedArray, serialized_templates, SerializedTemplates) |
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837 external_memory_ -= external_memory_concurrently_freed_.Value(); | 832 external_memory_ -= external_memory_concurrently_freed_.Value(); |
838 external_memory_concurrently_freed_.SetValue(0); | 833 external_memory_concurrently_freed_.SetValue(0); |
839 } | 834 } |
840 | 835 |
841 void DeoptMarkedAllocationSites(); | 836 void DeoptMarkedAllocationSites(); |
842 | 837 |
843 bool DeoptMaybeTenuredAllocationSites() { | 838 bool DeoptMaybeTenuredAllocationSites() { |
844 return new_space_.IsAtMaximumCapacity() && maximum_size_scavenges_ == 0; | 839 return new_space_.IsAtMaximumCapacity() && maximum_size_scavenges_ == 0; |
845 } | 840 } |
846 | 841 |
847 void AddWeakNewSpaceObjectToCodeDependency(Handle<HeapObject> obj, | |
848 Handle<WeakCell> code); | |
849 | |
850 void AddWeakObjectToCodeDependency(Handle<HeapObject> obj, | 842 void AddWeakObjectToCodeDependency(Handle<HeapObject> obj, |
851 Handle<DependentCode> dep); | 843 Handle<DependentCode> dep); |
852 | 844 |
853 DependentCode* LookupWeakObjectToCodeDependency(Handle<HeapObject> obj); | 845 DependentCode* LookupWeakObjectToCodeDependency(Handle<HeapObject> obj); |
854 | 846 |
855 void CompactWeakFixedArrays(); | 847 void CompactWeakFixedArrays(); |
856 | 848 |
857 void AddRetainedMap(Handle<Map> map); | 849 void AddRetainedMap(Handle<Map> map); |
858 | 850 |
859 // This event is triggered after successful allocation of a new object made | 851 // This event is triggered after successful allocation of a new object made |
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1100 void IteratePromotedObjectPointers(HeapObject* object, Address start, | 1092 void IteratePromotedObjectPointers(HeapObject* object, Address start, |
1101 Address end, bool record_slots, | 1093 Address end, bool record_slots, |
1102 ObjectSlotCallback callback); | 1094 ObjectSlotCallback callback); |
1103 | 1095 |
1104 // =========================================================================== | 1096 // =========================================================================== |
1105 // Store buffer API. ========================================================= | 1097 // Store buffer API. ========================================================= |
1106 // =========================================================================== | 1098 // =========================================================================== |
1107 | 1099 |
1108 // Write barrier support for object[offset] = o; | 1100 // Write barrier support for object[offset] = o; |
1109 inline void RecordWrite(Object* object, int offset, Object* o); | 1101 inline void RecordWrite(Object* object, int offset, Object* o); |
1110 inline void RecordWriteIntoCode(Code* host, RelocInfo* rinfo, Object* target); | |
1111 void RecordWriteIntoCodeSlow(Code* host, RelocInfo* rinfo, Object* target); | |
1112 inline void RecordFixedArrayElements(FixedArray* array, int offset, | 1102 inline void RecordFixedArrayElements(FixedArray* array, int offset, |
1113 int length); | 1103 int length); |
1114 | 1104 |
1115 Address* store_buffer_top_address() { return store_buffer()->top_address(); } | 1105 Address* store_buffer_top_address() { return store_buffer()->top_address(); } |
1116 | 1106 |
1117 void ClearRecordedSlot(HeapObject* object, Object** slot); | 1107 void ClearRecordedSlot(HeapObject* object, Object** slot); |
1118 void ClearRecordedSlotRange(Address start, Address end); | 1108 void ClearRecordedSlotRange(Address start, Address end); |
1119 | 1109 |
1120 // =========================================================================== | 1110 // =========================================================================== |
1121 // Incremental marking API. ================================================== | 1111 // Incremental marking API. ================================================== |
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2676 friend class LargeObjectSpace; | 2666 friend class LargeObjectSpace; |
2677 friend class NewSpace; | 2667 friend class NewSpace; |
2678 friend class PagedSpace; | 2668 friend class PagedSpace; |
2679 DISALLOW_COPY_AND_ASSIGN(AllocationObserver); | 2669 DISALLOW_COPY_AND_ASSIGN(AllocationObserver); |
2680 }; | 2670 }; |
2681 | 2671 |
2682 } // namespace internal | 2672 } // namespace internal |
2683 } // namespace v8 | 2673 } // namespace v8 |
2684 | 2674 |
2685 #endif // V8_HEAP_HEAP_H_ | 2675 #endif // V8_HEAP_HEAP_H_ |
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