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v8/tools/v8heapconst.py
Dominik Inführ ca5055625f [heap] Remove sweeping_slot_set_ from MemoryChunk 
Since the new space is always empty after a full GC, the old-to-new
remembered set is also always empty after a full GC. This means we can
get rid of the sweeping_slot_set_.

This slot set was used to allow the main thread to insert into the
old-to-new remembered set non-atomically. The sweeping slot set was
owned by the sweeper, which deletes slots in free memory from it. The
main thread would start with an empty old-to-new remembered set. After
sweeping both slot sets are merged again.

The sweeper now needs to behave differently during a GC. When sweeping
a page during full GC, the sweeper needs to delete old-to-new-slots in
free memory.

Outside of the GC the sweeper isn't allowed to remove from the
old-to-new slots anymore. This would race with the main thread that adds
slots to that remembered set while the sweeper is running. However,
there should be no recorded slots in free memory. DCHECKing this is
tricky though, because we would need to synchronize with the main
thread right-trimming objects and at least String::MakeThin only deletes
slots after the map release-store.

Bug: v8:12760
Change-Id: Ic0301851a714e894c3040595f456ab93b5875c81
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3560638
Reviewed-by: Michael Lippautz <mlippautz@chromium.org>
Commit-Queue: Dominik Inführ <dinfuehr@chromium.org>
Cr-Commit-Position: refs/heads/main@{#79713}
2022-04-01 14:21:40 +00:00

598 lines
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# Copyright 2019 the V8 project authors. All rights reserved.
# Use of this source code is governed by a BSD-style license that can
# be found in the LICENSE file.
# This file is automatically generated by mkgrokdump and should not
# be modified manually.
# List of known V8 instance types.
# yapf: disable
INSTANCE_TYPES = {
0: "INTERNALIZED_STRING_TYPE",
2: "EXTERNAL_INTERNALIZED_STRING_TYPE",
8: "ONE_BYTE_INTERNALIZED_STRING_TYPE",
10: "EXTERNAL_ONE_BYTE_INTERNALIZED_STRING_TYPE",
18: "UNCACHED_EXTERNAL_INTERNALIZED_STRING_TYPE",
26: "UNCACHED_EXTERNAL_ONE_BYTE_INTERNALIZED_STRING_TYPE",
32: "STRING_TYPE",
33: "CONS_STRING_TYPE",
34: "EXTERNAL_STRING_TYPE",
35: "SLICED_STRING_TYPE",
37: "THIN_STRING_TYPE",
40: "ONE_BYTE_STRING_TYPE",
41: "CONS_ONE_BYTE_STRING_TYPE",
42: "EXTERNAL_ONE_BYTE_STRING_TYPE",
43: "SLICED_ONE_BYTE_STRING_TYPE",
45: "THIN_ONE_BYTE_STRING_TYPE",
50: "UNCACHED_EXTERNAL_STRING_TYPE",
58: "UNCACHED_EXTERNAL_ONE_BYTE_STRING_TYPE",
96: "SHARED_STRING_TYPE",
101: "SHARED_THIN_STRING_TYPE",
104: "SHARED_ONE_BYTE_STRING_TYPE",
109: "SHARED_THIN_ONE_BYTE_STRING_TYPE",
128: "SYMBOL_TYPE",
129: "BIG_INT_BASE_TYPE",
130: "HEAP_NUMBER_TYPE",
131: "ODDBALL_TYPE",
132: "PROMISE_FULFILL_REACTION_JOB_TASK_TYPE",
133: "PROMISE_REJECT_REACTION_JOB_TASK_TYPE",
134: "CALLABLE_TASK_TYPE",
135: "CALLBACK_TASK_TYPE",
136: "PROMISE_RESOLVE_THENABLE_JOB_TASK_TYPE",
137: "LOAD_HANDLER_TYPE",
138: "STORE_HANDLER_TYPE",
139: "FUNCTION_TEMPLATE_INFO_TYPE",
140: "OBJECT_TEMPLATE_INFO_TYPE",
141: "ACCESS_CHECK_INFO_TYPE",
142: "ACCESSOR_INFO_TYPE",
143: "ACCESSOR_PAIR_TYPE",
144: "ALIASED_ARGUMENTS_ENTRY_TYPE",
145: "ALLOCATION_MEMENTO_TYPE",
146: "ALLOCATION_SITE_TYPE",
147: "ARRAY_BOILERPLATE_DESCRIPTION_TYPE",
148: "ASM_WASM_DATA_TYPE",
149: "ASYNC_GENERATOR_REQUEST_TYPE",
150: "BREAK_POINT_TYPE",
151: "BREAK_POINT_INFO_TYPE",
152: "CACHED_TEMPLATE_OBJECT_TYPE",
153: "CALL_HANDLER_INFO_TYPE",
154: "CALL_SITE_INFO_TYPE",
155: "CLASS_POSITIONS_TYPE",
156: "DEBUG_INFO_TYPE",
157: "ENUM_CACHE_TYPE",
158: "ERROR_STACK_DATA_TYPE",
159: "FEEDBACK_CELL_TYPE",
160: "FUNCTION_TEMPLATE_RARE_DATA_TYPE",
161: "INTERCEPTOR_INFO_TYPE",
162: "INTERPRETER_DATA_TYPE",
163: "MODULE_REQUEST_TYPE",
164: "PROMISE_CAPABILITY_TYPE",
165: "PROMISE_ON_STACK_TYPE",
166: "PROMISE_REACTION_TYPE",
167: "PROPERTY_DESCRIPTOR_OBJECT_TYPE",
168: "PROTOTYPE_INFO_TYPE",
169: "REG_EXP_BOILERPLATE_DESCRIPTION_TYPE",
170: "SCRIPT_TYPE",
171: "SCRIPT_OR_MODULE_TYPE",
172: "SOURCE_TEXT_MODULE_INFO_ENTRY_TYPE",
173: "STACK_FRAME_INFO_TYPE",
174: "TEMPLATE_OBJECT_DESCRIPTION_TYPE",
175: "TUPLE2_TYPE",
176: "WASM_CONTINUATION_OBJECT_TYPE",
177: "WASM_EXCEPTION_TAG_TYPE",
178: "WASM_INDIRECT_FUNCTION_TABLE_TYPE",
179: "FIXED_ARRAY_TYPE",
180: "HASH_TABLE_TYPE",
181: "EPHEMERON_HASH_TABLE_TYPE",
182: "GLOBAL_DICTIONARY_TYPE",
183: "NAME_DICTIONARY_TYPE",
184: "NAME_TO_INDEX_HASH_TABLE_TYPE",
185: "NUMBER_DICTIONARY_TYPE",
186: "ORDERED_HASH_MAP_TYPE",
187: "ORDERED_HASH_SET_TYPE",
188: "ORDERED_NAME_DICTIONARY_TYPE",
189: "REGISTERED_SYMBOL_TABLE_TYPE",
190: "SIMPLE_NUMBER_DICTIONARY_TYPE",
191: "CLOSURE_FEEDBACK_CELL_ARRAY_TYPE",
192: "OBJECT_BOILERPLATE_DESCRIPTION_TYPE",
193: "SCRIPT_CONTEXT_TABLE_TYPE",
194: "BYTE_ARRAY_TYPE",
195: "BYTECODE_ARRAY_TYPE",
196: "FIXED_DOUBLE_ARRAY_TYPE",
197: "INTERNAL_CLASS_WITH_SMI_ELEMENTS_TYPE",
198: "SLOPPY_ARGUMENTS_ELEMENTS_TYPE",
199: "TURBOFAN_BITSET_TYPE_TYPE",
200: "TURBOFAN_HEAP_CONSTANT_TYPE_TYPE",
201: "TURBOFAN_OTHER_NUMBER_CONSTANT_TYPE_TYPE",
202: "TURBOFAN_RANGE_TYPE_TYPE",
203: "TURBOFAN_UNION_TYPE_TYPE",
204: "FOREIGN_TYPE",
205: "WASM_INTERNAL_FUNCTION_TYPE",
206: "WASM_TYPE_INFO_TYPE",
207: "AWAIT_CONTEXT_TYPE",
208: "BLOCK_CONTEXT_TYPE",
209: "CATCH_CONTEXT_TYPE",
210: "DEBUG_EVALUATE_CONTEXT_TYPE",
211: "EVAL_CONTEXT_TYPE",
212: "FUNCTION_CONTEXT_TYPE",
213: "MODULE_CONTEXT_TYPE",
214: "NATIVE_CONTEXT_TYPE",
215: "SCRIPT_CONTEXT_TYPE",
216: "WITH_CONTEXT_TYPE",
217: "UNCOMPILED_DATA_WITH_PREPARSE_DATA_TYPE",
218: "UNCOMPILED_DATA_WITH_PREPARSE_DATA_AND_JOB_TYPE",
219: "UNCOMPILED_DATA_WITHOUT_PREPARSE_DATA_TYPE",
220: "UNCOMPILED_DATA_WITHOUT_PREPARSE_DATA_WITH_JOB_TYPE",
221: "WASM_FUNCTION_DATA_TYPE",
222: "WASM_CAPI_FUNCTION_DATA_TYPE",
223: "WASM_EXPORTED_FUNCTION_DATA_TYPE",
224: "WASM_JS_FUNCTION_DATA_TYPE",
225: "EXPORTED_SUB_CLASS_BASE_TYPE",
226: "EXPORTED_SUB_CLASS_TYPE",
227: "EXPORTED_SUB_CLASS2_TYPE",
228: "SMALL_ORDERED_HASH_MAP_TYPE",
229: "SMALL_ORDERED_HASH_SET_TYPE",
230: "SMALL_ORDERED_NAME_DICTIONARY_TYPE",
231: "ABSTRACT_INTERNAL_CLASS_SUBCLASS1_TYPE",
232: "ABSTRACT_INTERNAL_CLASS_SUBCLASS2_TYPE",
233: "DESCRIPTOR_ARRAY_TYPE",
234: "STRONG_DESCRIPTOR_ARRAY_TYPE",
235: "SOURCE_TEXT_MODULE_TYPE",
236: "SYNTHETIC_MODULE_TYPE",
237: "WEAK_FIXED_ARRAY_TYPE",
238: "TRANSITION_ARRAY_TYPE",
239: "CELL_TYPE",
240: "CODE_TYPE",
241: "CODE_DATA_CONTAINER_TYPE",
242: "COVERAGE_INFO_TYPE",
243: "EMBEDDER_DATA_ARRAY_TYPE",
244: "FEEDBACK_METADATA_TYPE",
245: "FEEDBACK_VECTOR_TYPE",
246: "FILLER_TYPE",
247: "FREE_SPACE_TYPE",
248: "INTERNAL_CLASS_TYPE",
249: "INTERNAL_CLASS_WITH_STRUCT_ELEMENTS_TYPE",
250: "MAP_TYPE",
251: "MEGA_DOM_HANDLER_TYPE",
252: "ON_HEAP_BASIC_BLOCK_PROFILER_DATA_TYPE",
253: "PREPARSE_DATA_TYPE",
254: "PROPERTY_ARRAY_TYPE",
255: "PROPERTY_CELL_TYPE",
256: "SCOPE_INFO_TYPE",
257: "SHARED_FUNCTION_INFO_TYPE",
258: "SMI_BOX_TYPE",
259: "SMI_PAIR_TYPE",
260: "SORT_STATE_TYPE",
261: "SWISS_NAME_DICTIONARY_TYPE",
262: "WASM_API_FUNCTION_REF_TYPE",
263: "WASM_ON_FULFILLED_DATA_TYPE",
264: "WEAK_ARRAY_LIST_TYPE",
265: "WEAK_CELL_TYPE",
266: "WASM_ARRAY_TYPE",
267: "WASM_STRUCT_TYPE",
268: "JS_PROXY_TYPE",
1057: "JS_OBJECT_TYPE",
269: "JS_GLOBAL_OBJECT_TYPE",
270: "JS_GLOBAL_PROXY_TYPE",
271: "JS_MODULE_NAMESPACE_TYPE",
1040: "JS_SPECIAL_API_OBJECT_TYPE",
1041: "JS_PRIMITIVE_WRAPPER_TYPE",
1058: "JS_API_OBJECT_TYPE",
2058: "JS_LAST_DUMMY_API_OBJECT_TYPE",
2059: "JS_DATA_VIEW_TYPE",
2060: "JS_TYPED_ARRAY_TYPE",
2061: "JS_ARRAY_BUFFER_TYPE",
2062: "JS_PROMISE_TYPE",
2063: "JS_BOUND_FUNCTION_TYPE",
2064: "JS_WRAPPED_FUNCTION_TYPE",
2065: "JS_FUNCTION_TYPE",
2066: "BIGINT64_TYPED_ARRAY_CONSTRUCTOR_TYPE",
2067: "BIGUINT64_TYPED_ARRAY_CONSTRUCTOR_TYPE",
2068: "FLOAT32_TYPED_ARRAY_CONSTRUCTOR_TYPE",
2069: "FLOAT64_TYPED_ARRAY_CONSTRUCTOR_TYPE",
2070: "INT16_TYPED_ARRAY_CONSTRUCTOR_TYPE",
2071: "INT32_TYPED_ARRAY_CONSTRUCTOR_TYPE",
2072: "INT8_TYPED_ARRAY_CONSTRUCTOR_TYPE",
2073: "UINT16_TYPED_ARRAY_CONSTRUCTOR_TYPE",
2074: "UINT32_TYPED_ARRAY_CONSTRUCTOR_TYPE",
2075: "UINT8_CLAMPED_TYPED_ARRAY_CONSTRUCTOR_TYPE",
2076: "UINT8_TYPED_ARRAY_CONSTRUCTOR_TYPE",
2077: "JS_ARRAY_CONSTRUCTOR_TYPE",
2078: "JS_PROMISE_CONSTRUCTOR_TYPE",
2079: "JS_REG_EXP_CONSTRUCTOR_TYPE",
2080: "JS_CLASS_CONSTRUCTOR_TYPE",
2081: "JS_ARRAY_ITERATOR_PROTOTYPE_TYPE",
2082: "JS_ITERATOR_PROTOTYPE_TYPE",
2083: "JS_MAP_ITERATOR_PROTOTYPE_TYPE",
2084: "JS_OBJECT_PROTOTYPE_TYPE",
2085: "JS_PROMISE_PROTOTYPE_TYPE",
2086: "JS_REG_EXP_PROTOTYPE_TYPE",
2087: "JS_SET_ITERATOR_PROTOTYPE_TYPE",
2088: "JS_SET_PROTOTYPE_TYPE",
2089: "JS_STRING_ITERATOR_PROTOTYPE_TYPE",
2090: "JS_TYPED_ARRAY_PROTOTYPE_TYPE",
2091: "JS_MAP_KEY_ITERATOR_TYPE",
2092: "JS_MAP_KEY_VALUE_ITERATOR_TYPE",
2093: "JS_MAP_VALUE_ITERATOR_TYPE",
2094: "JS_SET_KEY_VALUE_ITERATOR_TYPE",
2095: "JS_SET_VALUE_ITERATOR_TYPE",
2096: "JS_GENERATOR_OBJECT_TYPE",
2097: "JS_ASYNC_FUNCTION_OBJECT_TYPE",
2098: "JS_ASYNC_GENERATOR_OBJECT_TYPE",
2099: "JS_MAP_TYPE",
2100: "JS_SET_TYPE",
2101: "JS_WEAK_MAP_TYPE",
2102: "JS_WEAK_SET_TYPE",
2103: "JS_ARGUMENTS_OBJECT_TYPE",
2104: "JS_ARRAY_TYPE",
2105: "JS_ARRAY_ITERATOR_TYPE",
2106: "JS_ASYNC_FROM_SYNC_ITERATOR_TYPE",
2107: "JS_COLLATOR_TYPE",
2108: "JS_CONTEXT_EXTENSION_OBJECT_TYPE",
2109: "JS_DATE_TYPE",
2110: "JS_DATE_TIME_FORMAT_TYPE",
2111: "JS_DISPLAY_NAMES_TYPE",
2112: "JS_ERROR_TYPE",
2113: "JS_EXTERNAL_OBJECT_TYPE",
2114: "JS_FINALIZATION_REGISTRY_TYPE",
2115: "JS_LIST_FORMAT_TYPE",
2116: "JS_LOCALE_TYPE",
2117: "JS_MESSAGE_OBJECT_TYPE",
2118: "JS_NUMBER_FORMAT_TYPE",
2119: "JS_PLURAL_RULES_TYPE",
2120: "JS_REG_EXP_TYPE",
2121: "JS_REG_EXP_STRING_ITERATOR_TYPE",
2122: "JS_RELATIVE_TIME_FORMAT_TYPE",
2123: "JS_SEGMENT_ITERATOR_TYPE",
2124: "JS_SEGMENTER_TYPE",
2125: "JS_SEGMENTS_TYPE",
2126: "JS_SHADOW_REALM_TYPE",
2127: "JS_SHARED_STRUCT_TYPE",
2128: "JS_STRING_ITERATOR_TYPE",
2129: "JS_TEMPORAL_CALENDAR_TYPE",
2130: "JS_TEMPORAL_DURATION_TYPE",
2131: "JS_TEMPORAL_INSTANT_TYPE",
2132: "JS_TEMPORAL_PLAIN_DATE_TYPE",
2133: "JS_TEMPORAL_PLAIN_DATE_TIME_TYPE",
2134: "JS_TEMPORAL_PLAIN_MONTH_DAY_TYPE",
2135: "JS_TEMPORAL_PLAIN_TIME_TYPE",
2136: "JS_TEMPORAL_PLAIN_YEAR_MONTH_TYPE",
2137: "JS_TEMPORAL_TIME_ZONE_TYPE",
2138: "JS_TEMPORAL_ZONED_DATE_TIME_TYPE",
2139: "JS_V8_BREAK_ITERATOR_TYPE",
2140: "JS_WEAK_REF_TYPE",
2141: "WASM_GLOBAL_OBJECT_TYPE",
2142: "WASM_INSTANCE_OBJECT_TYPE",
2143: "WASM_MEMORY_OBJECT_TYPE",
2144: "WASM_MODULE_OBJECT_TYPE",
2145: "WASM_SUSPENDER_OBJECT_TYPE",
2146: "WASM_TABLE_OBJECT_TYPE",
2147: "WASM_TAG_OBJECT_TYPE",
2148: "WASM_VALUE_OBJECT_TYPE",
}
# List of known V8 maps.
KNOWN_MAPS = {
("read_only_space", 0x02149): (250, "MetaMap"),
("read_only_space", 0x02171): (131, "NullMap"),
("read_only_space", 0x02199): (234, "StrongDescriptorArrayMap"),
("read_only_space", 0x021c1): (264, "WeakArrayListMap"),
("read_only_space", 0x02205): (157, "EnumCacheMap"),
("read_only_space", 0x02239): (179, "FixedArrayMap"),
("read_only_space", 0x02285): (8, "OneByteInternalizedStringMap"),
("read_only_space", 0x022d1): (247, "FreeSpaceMap"),
("read_only_space", 0x022f9): (246, "OnePointerFillerMap"),
("read_only_space", 0x02321): (246, "TwoPointerFillerMap"),
("read_only_space", 0x02349): (131, "UninitializedMap"),
("read_only_space", 0x023c1): (131, "UndefinedMap"),
("read_only_space", 0x02405): (130, "HeapNumberMap"),
("read_only_space", 0x02439): (131, "TheHoleMap"),
("read_only_space", 0x02499): (131, "BooleanMap"),
("read_only_space", 0x0253d): (194, "ByteArrayMap"),
("read_only_space", 0x02565): (179, "FixedCOWArrayMap"),
("read_only_space", 0x0258d): (180, "HashTableMap"),
("read_only_space", 0x025b5): (128, "SymbolMap"),
("read_only_space", 0x025dd): (40, "OneByteStringMap"),
("read_only_space", 0x02605): (256, "ScopeInfoMap"),
("read_only_space", 0x0262d): (257, "SharedFunctionInfoMap"),
("read_only_space", 0x02655): (240, "CodeMap"),
("read_only_space", 0x0267d): (239, "CellMap"),
("read_only_space", 0x026a5): (255, "GlobalPropertyCellMap"),
("read_only_space", 0x026cd): (204, "ForeignMap"),
("read_only_space", 0x026f5): (238, "TransitionArrayMap"),
("read_only_space", 0x0271d): (45, "ThinOneByteStringMap"),
("read_only_space", 0x02745): (245, "FeedbackVectorMap"),
("read_only_space", 0x0277d): (131, "ArgumentsMarkerMap"),
("read_only_space", 0x027dd): (131, "ExceptionMap"),
("read_only_space", 0x02839): (131, "TerminationExceptionMap"),
("read_only_space", 0x028a1): (131, "OptimizedOutMap"),
("read_only_space", 0x02901): (131, "StaleRegisterMap"),
("read_only_space", 0x02961): (193, "ScriptContextTableMap"),
("read_only_space", 0x02989): (191, "ClosureFeedbackCellArrayMap"),
("read_only_space", 0x029b1): (244, "FeedbackMetadataArrayMap"),
("read_only_space", 0x029d9): (179, "ArrayListMap"),
("read_only_space", 0x02a01): (129, "BigIntMap"),
("read_only_space", 0x02a29): (192, "ObjectBoilerplateDescriptionMap"),
("read_only_space", 0x02a51): (195, "BytecodeArrayMap"),
("read_only_space", 0x02a79): (241, "CodeDataContainerMap"),
("read_only_space", 0x02aa1): (242, "CoverageInfoMap"),
("read_only_space", 0x02ac9): (196, "FixedDoubleArrayMap"),
("read_only_space", 0x02af1): (182, "GlobalDictionaryMap"),
("read_only_space", 0x02b19): (159, "ManyClosuresCellMap"),
("read_only_space", 0x02b41): (251, "MegaDomHandlerMap"),
("read_only_space", 0x02b69): (179, "ModuleInfoMap"),
("read_only_space", 0x02b91): (183, "NameDictionaryMap"),
("read_only_space", 0x02bb9): (159, "NoClosuresCellMap"),
("read_only_space", 0x02be1): (185, "NumberDictionaryMap"),
("read_only_space", 0x02c09): (159, "OneClosureCellMap"),
("read_only_space", 0x02c31): (186, "OrderedHashMapMap"),
("read_only_space", 0x02c59): (187, "OrderedHashSetMap"),
("read_only_space", 0x02c81): (184, "NameToIndexHashTableMap"),
("read_only_space", 0x02ca9): (189, "RegisteredSymbolTableMap"),
("read_only_space", 0x02cd1): (188, "OrderedNameDictionaryMap"),
("read_only_space", 0x02cf9): (253, "PreparseDataMap"),
("read_only_space", 0x02d21): (254, "PropertyArrayMap"),
("read_only_space", 0x02d49): (153, "SideEffectCallHandlerInfoMap"),
("read_only_space", 0x02d71): (153, "SideEffectFreeCallHandlerInfoMap"),
("read_only_space", 0x02d99): (153, "NextCallSideEffectFreeCallHandlerInfoMap"),
("read_only_space", 0x02dc1): (190, "SimpleNumberDictionaryMap"),
("read_only_space", 0x02de9): (228, "SmallOrderedHashMapMap"),
("read_only_space", 0x02e11): (229, "SmallOrderedHashSetMap"),
("read_only_space", 0x02e39): (230, "SmallOrderedNameDictionaryMap"),
("read_only_space", 0x02e61): (235, "SourceTextModuleMap"),
("read_only_space", 0x02e89): (261, "SwissNameDictionaryMap"),
("read_only_space", 0x02eb1): (236, "SyntheticModuleMap"),
("read_only_space", 0x02ed9): (262, "WasmApiFunctionRefMap"),
("read_only_space", 0x02f01): (222, "WasmCapiFunctionDataMap"),
("read_only_space", 0x02f29): (223, "WasmExportedFunctionDataMap"),
("read_only_space", 0x02f51): (205, "WasmInternalFunctionMap"),
("read_only_space", 0x02f79): (224, "WasmJSFunctionDataMap"),
("read_only_space", 0x02fa1): (263, "WasmOnFulfilledDataMap"),
("read_only_space", 0x02fc9): (206, "WasmTypeInfoMap"),
("read_only_space", 0x02ff1): (237, "WeakFixedArrayMap"),
("read_only_space", 0x03019): (181, "EphemeronHashTableMap"),
("read_only_space", 0x03041): (243, "EmbedderDataArrayMap"),
("read_only_space", 0x03069): (265, "WeakCellMap"),
("read_only_space", 0x03091): (32, "StringMap"),
("read_only_space", 0x030b9): (41, "ConsOneByteStringMap"),
("read_only_space", 0x030e1): (33, "ConsStringMap"),
("read_only_space", 0x03109): (37, "ThinStringMap"),
("read_only_space", 0x03131): (35, "SlicedStringMap"),
("read_only_space", 0x03159): (43, "SlicedOneByteStringMap"),
("read_only_space", 0x03181): (34, "ExternalStringMap"),
("read_only_space", 0x031a9): (42, "ExternalOneByteStringMap"),
("read_only_space", 0x031d1): (50, "UncachedExternalStringMap"),
("read_only_space", 0x031f9): (0, "InternalizedStringMap"),
("read_only_space", 0x03221): (2, "ExternalInternalizedStringMap"),
("read_only_space", 0x03249): (10, "ExternalOneByteInternalizedStringMap"),
("read_only_space", 0x03271): (18, "UncachedExternalInternalizedStringMap"),
("read_only_space", 0x03299): (26, "UncachedExternalOneByteInternalizedStringMap"),
("read_only_space", 0x032c1): (58, "UncachedExternalOneByteStringMap"),
("read_only_space", 0x032e9): (104, "SharedOneByteStringMap"),
("read_only_space", 0x03311): (96, "SharedStringMap"),
("read_only_space", 0x03339): (109, "SharedThinOneByteStringMap"),
("read_only_space", 0x03361): (101, "SharedThinStringMap"),
("read_only_space", 0x03389): (96, "TwoByteSeqStringMigrationSentinelMap"),
("read_only_space", 0x033b1): (104, "OneByteSeqStringMigrationSentinelMap"),
("read_only_space", 0x033d9): (131, "SelfReferenceMarkerMap"),
("read_only_space", 0x03401): (131, "BasicBlockCountersMarkerMap"),
("read_only_space", 0x03445): (147, "ArrayBoilerplateDescriptionMap"),
("read_only_space", 0x03545): (161, "InterceptorInfoMap"),
("read_only_space", 0x06015): (132, "PromiseFulfillReactionJobTaskMap"),
("read_only_space", 0x0603d): (133, "PromiseRejectReactionJobTaskMap"),
("read_only_space", 0x06065): (134, "CallableTaskMap"),
("read_only_space", 0x0608d): (135, "CallbackTaskMap"),
("read_only_space", 0x060b5): (136, "PromiseResolveThenableJobTaskMap"),
("read_only_space", 0x060dd): (139, "FunctionTemplateInfoMap"),
("read_only_space", 0x06105): (140, "ObjectTemplateInfoMap"),
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("read_only_space", 0x0617d): (143, "AccessorPairMap"),
("read_only_space", 0x061a5): (144, "AliasedArgumentsEntryMap"),
("read_only_space", 0x061cd): (145, "AllocationMementoMap"),
("read_only_space", 0x061f5): (148, "AsmWasmDataMap"),
("read_only_space", 0x0621d): (149, "AsyncGeneratorRequestMap"),
("read_only_space", 0x06245): (150, "BreakPointMap"),
("read_only_space", 0x0626d): (151, "BreakPointInfoMap"),
("read_only_space", 0x06295): (152, "CachedTemplateObjectMap"),
("read_only_space", 0x062bd): (154, "CallSiteInfoMap"),
("read_only_space", 0x062e5): (155, "ClassPositionsMap"),
("read_only_space", 0x0630d): (156, "DebugInfoMap"),
("read_only_space", 0x06335): (158, "ErrorStackDataMap"),
("read_only_space", 0x0635d): (160, "FunctionTemplateRareDataMap"),
("read_only_space", 0x06385): (162, "InterpreterDataMap"),
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("read_only_space", 0x063fd): (165, "PromiseOnStackMap"),
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("read_only_space", 0x06515): (172, "SourceTextModuleInfoEntryMap"),
("read_only_space", 0x0653d): (173, "StackFrameInfoMap"),
("read_only_space", 0x06565): (174, "TemplateObjectDescriptionMap"),
("read_only_space", 0x0658d): (175, "Tuple2Map"),
("read_only_space", 0x065b5): (176, "WasmContinuationObjectMap"),
("read_only_space", 0x065dd): (177, "WasmExceptionTagMap"),
("read_only_space", 0x06605): (178, "WasmIndirectFunctionTableMap"),
("read_only_space", 0x0662d): (198, "SloppyArgumentsElementsMap"),
("read_only_space", 0x06655): (233, "DescriptorArrayMap"),
("read_only_space", 0x0667d): (219, "UncompiledDataWithoutPreparseDataMap"),
("read_only_space", 0x066a5): (217, "UncompiledDataWithPreparseDataMap"),
("read_only_space", 0x066cd): (220, "UncompiledDataWithoutPreparseDataWithJobMap"),
("read_only_space", 0x066f5): (218, "UncompiledDataWithPreparseDataAndJobMap"),
("read_only_space", 0x0671d): (252, "OnHeapBasicBlockProfilerDataMap"),
("read_only_space", 0x06745): (199, "TurbofanBitsetTypeMap"),
("read_only_space", 0x0676d): (203, "TurbofanUnionTypeMap"),
("read_only_space", 0x06795): (202, "TurbofanRangeTypeMap"),
("read_only_space", 0x067bd): (200, "TurbofanHeapConstantTypeMap"),
("read_only_space", 0x067e5): (201, "TurbofanOtherNumberConstantTypeMap"),
("read_only_space", 0x0680d): (248, "InternalClassMap"),
("read_only_space", 0x06835): (259, "SmiPairMap"),
("read_only_space", 0x0685d): (258, "SmiBoxMap"),
("read_only_space", 0x06885): (225, "ExportedSubClassBaseMap"),
("read_only_space", 0x068ad): (226, "ExportedSubClassMap"),
("read_only_space", 0x068d5): (231, "AbstractInternalClassSubclass1Map"),
("read_only_space", 0x068fd): (232, "AbstractInternalClassSubclass2Map"),
("read_only_space", 0x06925): (197, "InternalClassWithSmiElementsMap"),
("read_only_space", 0x0694d): (249, "InternalClassWithStructElementsMap"),
("read_only_space", 0x06975): (227, "ExportedSubClass2Map"),
("read_only_space", 0x0699d): (260, "SortStateMap"),
("read_only_space", 0x069c5): (146, "AllocationSiteWithWeakNextMap"),
("read_only_space", 0x069ed): (146, "AllocationSiteWithoutWeakNextMap"),
("read_only_space", 0x06a15): (137, "LoadHandler1Map"),
("read_only_space", 0x06a3d): (137, "LoadHandler2Map"),
("read_only_space", 0x06a65): (137, "LoadHandler3Map"),
("read_only_space", 0x06a8d): (138, "StoreHandler0Map"),
("read_only_space", 0x06ab5): (138, "StoreHandler1Map"),
("read_only_space", 0x06add): (138, "StoreHandler2Map"),
("read_only_space", 0x06b05): (138, "StoreHandler3Map"),
("map_space", 0x02149): (2113, "ExternalMap"),
("map_space", 0x02171): (2117, "JSMessageObjectMap"),
}
# List of known V8 objects.
KNOWN_OBJECTS = {
("read_only_space", 0x021e9): "EmptyWeakArrayList",
("read_only_space", 0x021f5): "EmptyDescriptorArray",
("read_only_space", 0x0222d): "EmptyEnumCache",
("read_only_space", 0x02261): "EmptyFixedArray",
("read_only_space", 0x02269): "NullValue",
("read_only_space", 0x02371): "UninitializedValue",
("read_only_space", 0x023e9): "UndefinedValue",
("read_only_space", 0x0242d): "NanValue",
("read_only_space", 0x02461): "TheHoleValue",
("read_only_space", 0x0248d): "HoleNanValue",
("read_only_space", 0x024c1): "TrueValue",
("read_only_space", 0x02501): "FalseValue",
("read_only_space", 0x02531): "empty_string",
("read_only_space", 0x0276d): "EmptyScopeInfo",
("read_only_space", 0x027a5): "ArgumentsMarker",
("read_only_space", 0x02805): "Exception",
("read_only_space", 0x02861): "TerminationException",
("read_only_space", 0x028c9): "OptimizedOut",
("read_only_space", 0x02929): "StaleRegister",
("read_only_space", 0x03429): "EmptyPropertyArray",
("read_only_space", 0x03431): "EmptyByteArray",
("read_only_space", 0x03439): "EmptyObjectBoilerplateDescription",
("read_only_space", 0x0346d): "EmptyArrayBoilerplateDescription",
("read_only_space", 0x03479): "EmptyClosureFeedbackCellArray",
("read_only_space", 0x03481): "EmptySlowElementDictionary",
("read_only_space", 0x034a5): "EmptyOrderedHashMap",
("read_only_space", 0x034b9): "EmptyOrderedHashSet",
("read_only_space", 0x034cd): "EmptyFeedbackMetadata",
("read_only_space", 0x034d9): "EmptyPropertyDictionary",
("read_only_space", 0x03501): "EmptyOrderedPropertyDictionary",
("read_only_space", 0x03519): "EmptySwissPropertyDictionary",
("read_only_space", 0x0356d): "NoOpInterceptorInfo",
("read_only_space", 0x03595): "EmptyArrayList",
("read_only_space", 0x035a1): "EmptyWeakFixedArray",
("read_only_space", 0x035a9): "InfinityValue",
("read_only_space", 0x035b5): "MinusZeroValue",
("read_only_space", 0x035c1): "MinusInfinityValue",
("read_only_space", 0x035cd): "SelfReferenceMarker",
("read_only_space", 0x0360d): "BasicBlockCountersMarker",
("read_only_space", 0x03651): "OffHeapTrampolineRelocationInfo",
("read_only_space", 0x0365d): "GlobalThisBindingScopeInfo",
("read_only_space", 0x0368d): "EmptyFunctionScopeInfo",
("read_only_space", 0x036b1): "NativeScopeInfo",
("read_only_space", 0x036c9): "HashSeed",
("old_space", 0x04215): "ArgumentsIteratorAccessor",
("old_space", 0x04259): "ArrayLengthAccessor",
("old_space", 0x0429d): "BoundFunctionLengthAccessor",
("old_space", 0x042e1): "BoundFunctionNameAccessor",
("old_space", 0x04325): "ErrorStackAccessor",
("old_space", 0x04369): "FunctionArgumentsAccessor",
("old_space", 0x043ad): "FunctionCallerAccessor",
("old_space", 0x043f1): "FunctionNameAccessor",
("old_space", 0x04435): "FunctionLengthAccessor",
("old_space", 0x04479): "FunctionPrototypeAccessor",
("old_space", 0x044bd): "StringLengthAccessor",
("old_space", 0x04501): "WrappedFunctionLengthAccessor",
("old_space", 0x04545): "WrappedFunctionNameAccessor",
("old_space", 0x04589): "InvalidPrototypeValidityCell",
("old_space", 0x04591): "EmptyScript",
("old_space", 0x045d1): "ManyClosuresCell",
("old_space", 0x045dd): "ArrayConstructorProtector",
("old_space", 0x045f1): "NoElementsProtector",
("old_space", 0x04605): "MegaDOMProtector",
("old_space", 0x04619): "IsConcatSpreadableProtector",
("old_space", 0x0462d): "ArraySpeciesProtector",
("old_space", 0x04641): "TypedArraySpeciesProtector",
("old_space", 0x04655): "PromiseSpeciesProtector",
("old_space", 0x04669): "RegExpSpeciesProtector",
("old_space", 0x0467d): "StringLengthProtector",
("old_space", 0x04691): "ArrayIteratorProtector",
("old_space", 0x046a5): "ArrayBufferDetachingProtector",
("old_space", 0x046b9): "PromiseHookProtector",
("old_space", 0x046cd): "PromiseResolveProtector",
("old_space", 0x046e1): "MapIteratorProtector",
("old_space", 0x046f5): "PromiseThenProtector",
("old_space", 0x04709): "SetIteratorProtector",
("old_space", 0x0471d): "StringIteratorProtector",
("old_space", 0x04731): "SingleCharacterStringCache",
("old_space", 0x04b39): "StringSplitCache",
("old_space", 0x04f41): "RegExpMultipleCache",
("old_space", 0x05349): "BuiltinsConstantsTable",
("old_space", 0x05775): "AsyncFunctionAwaitRejectSharedFun",
("old_space", 0x05799): "AsyncFunctionAwaitResolveSharedFun",
("old_space", 0x057bd): "AsyncGeneratorAwaitRejectSharedFun",
("old_space", 0x057e1): "AsyncGeneratorAwaitResolveSharedFun",
("old_space", 0x05805): "AsyncGeneratorYieldResolveSharedFun",
("old_space", 0x05829): "AsyncGeneratorReturnResolveSharedFun",
("old_space", 0x0584d): "AsyncGeneratorReturnClosedRejectSharedFun",
("old_space", 0x05871): "AsyncGeneratorReturnClosedResolveSharedFun",
("old_space", 0x05895): "AsyncIteratorValueUnwrapSharedFun",
("old_space", 0x058b9): "PromiseAllResolveElementSharedFun",
("old_space", 0x058dd): "PromiseAllSettledResolveElementSharedFun",
("old_space", 0x05901): "PromiseAllSettledRejectElementSharedFun",
("old_space", 0x05925): "PromiseAnyRejectElementSharedFun",
("old_space", 0x05949): "PromiseCapabilityDefaultRejectSharedFun",
("old_space", 0x0596d): "PromiseCapabilityDefaultResolveSharedFun",
("old_space", 0x05991): "PromiseCatchFinallySharedFun",
("old_space", 0x059b5): "PromiseGetCapabilitiesExecutorSharedFun",
("old_space", 0x059d9): "PromiseThenFinallySharedFun",
("old_space", 0x059fd): "PromiseThrowerFinallySharedFun",
("old_space", 0x05a21): "PromiseValueThunkFinallySharedFun",
("old_space", 0x05a45): "ProxyRevokeSharedFun",
}
# Lower 32 bits of first page addresses for various heap spaces.
HEAP_FIRST_PAGES = {
0x000c0000: "old_space",
0x00100000: "map_space",
0x00000000: "read_only_space",
}
# List of known V8 Frame Markers.
FRAME_MARKERS = (
"ENTRY",
"CONSTRUCT_ENTRY",
"EXIT",
"WASM",
"WASM_TO_JS",
"JS_TO_WASM",
"STACK_SWITCH",
"WASM_DEBUG_BREAK",
"C_WASM_ENTRY",
"WASM_EXIT",
"WASM_COMPILE_LAZY",
"INTERPRETED",
"BASELINE",
"OPTIMIZED",
"STUB",
"BUILTIN_CONTINUATION",
"JAVA_SCRIPT_BUILTIN_CONTINUATION",
"JAVA_SCRIPT_BUILTIN_CONTINUATION_WITH_CATCH",
"INTERNAL",
"CONSTRUCT",
"BUILTIN",
"BUILTIN_EXIT",
"NATIVE",
)
# This set of constants is generated from a shipping build.
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