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8231c651d5
v8/tools/v8heapconst.py
Dominik Inführ 25981026dc [heap] Improve accounting of PagedSpace::CommittedPhysicalMemory() 
Instead of using the high water mark for determining this metric, we use
a bitset for all active/used system pages on a V8 heap page. Each time
when allocating a LAB on a page, we add the pages of that memory range
to that bitset. During sweeping we rebuild that bitset from scratch and
replace it with the old one in case free pages are discarded by the GC.
We DCHECK here that the sweeper only ever removes pages. This has the
nice benefit of ensuring that we don't miss any allocations (like we
do now for concurrent allocations).

CommittedPhysicalMemory for a page is then calculated by counting the
set bits in the bitset and multiplying it with the system page size.
This should be simpler to verify and track the "real" effective size
more precisely.

One case where we are partially less precise than the current
implementation is for LABs. In order to reduce complexity we now treat
all pages of a LAB allocation as active immediately. In the current
implementation we tried to only account the actual used part of the LAB
when changing the LAB later. This is more complex to track correctly
but also doesn't account the currently used LAB in effective size.

Change-Id: Ia83df9ad5fbb852f0717c4c396b5074604bd21e9
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3497363
Reviewed-by: Michael Lippautz <mlippautz@chromium.org>
Commit-Queue: Dominik Inführ <dinfuehr@chromium.org>
Cr-Commit-Position: refs/heads/main@{#79428}
2022-03-09 18:28:21 +00:00

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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_REACTION_TYPE",
166: "PROPERTY_DESCRIPTOR_OBJECT_TYPE",
167: "PROTOTYPE_INFO_TYPE",
168: "REG_EXP_BOILERPLATE_DESCRIPTION_TYPE",
169: "SCRIPT_TYPE",
170: "SCRIPT_OR_MODULE_TYPE",
171: "SOURCE_TEXT_MODULE_INFO_ENTRY_TYPE",
172: "STACK_FRAME_INFO_TYPE",
173: "TEMPLATE_OBJECT_DESCRIPTION_TYPE",
174: "TUPLE2_TYPE",
175: "WASM_CONTINUATION_OBJECT_TYPE",
176: "WASM_EXCEPTION_TAG_TYPE",
177: "WASM_INDIRECT_FUNCTION_TABLE_TYPE",
178: "FIXED_ARRAY_TYPE",
179: "HASH_TABLE_TYPE",
180: "EPHEMERON_HASH_TABLE_TYPE",
181: "GLOBAL_DICTIONARY_TYPE",
182: "NAME_DICTIONARY_TYPE",
183: "NAME_TO_INDEX_HASH_TABLE_TYPE",
184: "NUMBER_DICTIONARY_TYPE",
185: "ORDERED_HASH_MAP_TYPE",
186: "ORDERED_HASH_SET_TYPE",
187: "ORDERED_NAME_DICTIONARY_TYPE",
188: "REGISTERED_SYMBOL_TABLE_TYPE",
189: "SIMPLE_NUMBER_DICTIONARY_TYPE",
190: "CLOSURE_FEEDBACK_CELL_ARRAY_TYPE",
191: "OBJECT_BOILERPLATE_DESCRIPTION_TYPE",
192: "SCRIPT_CONTEXT_TABLE_TYPE",
193: "BYTE_ARRAY_TYPE",
194: "BYTECODE_ARRAY_TYPE",
195: "FIXED_DOUBLE_ARRAY_TYPE",
196: "INTERNAL_CLASS_WITH_SMI_ELEMENTS_TYPE",
197: "SLOPPY_ARGUMENTS_ELEMENTS_TYPE",
198: "TURBOFAN_BITSET_TYPE_TYPE",
199: "TURBOFAN_HEAP_CONSTANT_TYPE_TYPE",
200: "TURBOFAN_OTHER_NUMBER_CONSTANT_TYPE_TYPE",
201: "TURBOFAN_RANGE_TYPE_TYPE",
202: "TURBOFAN_UNION_TYPE_TYPE",
203: "CELL_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: "CODE_TYPE",
240: "CODE_DATA_CONTAINER_TYPE",
241: "COVERAGE_INFO_TYPE",
242: "EMBEDDER_DATA_ARRAY_TYPE",
243: "FEEDBACK_METADATA_TYPE",
244: "FEEDBACK_VECTOR_TYPE",
245: "FILLER_TYPE",
246: "FREE_SPACE_TYPE",
247: "INTERNAL_CLASS_TYPE",
248: "INTERNAL_CLASS_WITH_STRUCT_ELEMENTS_TYPE",
249: "MAP_TYPE",
250: "MEGA_DOM_HANDLER_TYPE",
251: "ON_HEAP_BASIC_BLOCK_PROFILER_DATA_TYPE",
252: "PREPARSE_DATA_TYPE",
253: "PROPERTY_ARRAY_TYPE",
254: "PROPERTY_CELL_TYPE",
255: "SCOPE_INFO_TYPE",
256: "SHARED_FUNCTION_INFO_TYPE",
257: "SMI_BOX_TYPE",
258: "SMI_PAIR_TYPE",
259: "SORT_STATE_TYPE",
260: "SWISS_NAME_DICTIONARY_TYPE",
261: "WASM_API_FUNCTION_REF_TYPE",
262: "WASM_ON_FULFILLED_DATA_TYPE",
263: "WEAK_ARRAY_LIST_TYPE",
264: "WEAK_CELL_TYPE",
265: "WASM_ARRAY_TYPE",
266: "WASM_STRUCT_TYPE",
267: "JS_PROXY_TYPE",
1057: "JS_OBJECT_TYPE",
268: "JS_GLOBAL_OBJECT_TYPE",
269: "JS_GLOBAL_PROXY_TYPE",
270: "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_BOUND_FUNCTION_TYPE",
2060: "JS_WRAPPED_FUNCTION_TYPE",
2061: "JS_FUNCTION_TYPE",
2062: "BIGINT64_TYPED_ARRAY_CONSTRUCTOR_TYPE",
2063: "BIGUINT64_TYPED_ARRAY_CONSTRUCTOR_TYPE",
2064: "FLOAT32_TYPED_ARRAY_CONSTRUCTOR_TYPE",
2065: "FLOAT64_TYPED_ARRAY_CONSTRUCTOR_TYPE",
2066: "INT16_TYPED_ARRAY_CONSTRUCTOR_TYPE",
2067: "INT32_TYPED_ARRAY_CONSTRUCTOR_TYPE",
2068: "INT8_TYPED_ARRAY_CONSTRUCTOR_TYPE",
2069: "UINT16_TYPED_ARRAY_CONSTRUCTOR_TYPE",
2070: "UINT32_TYPED_ARRAY_CONSTRUCTOR_TYPE",
2071: "UINT8_CLAMPED_TYPED_ARRAY_CONSTRUCTOR_TYPE",
2072: "UINT8_TYPED_ARRAY_CONSTRUCTOR_TYPE",
2073: "JS_ARRAY_CONSTRUCTOR_TYPE",
2074: "JS_PROMISE_CONSTRUCTOR_TYPE",
2075: "JS_REG_EXP_CONSTRUCTOR_TYPE",
2076: "JS_CLASS_CONSTRUCTOR_TYPE",
2077: "JS_ARRAY_ITERATOR_PROTOTYPE_TYPE",
2078: "JS_ITERATOR_PROTOTYPE_TYPE",
2079: "JS_MAP_ITERATOR_PROTOTYPE_TYPE",
2080: "JS_OBJECT_PROTOTYPE_TYPE",
2081: "JS_PROMISE_PROTOTYPE_TYPE",
2082: "JS_REG_EXP_PROTOTYPE_TYPE",
2083: "JS_SET_ITERATOR_PROTOTYPE_TYPE",
2084: "JS_SET_PROTOTYPE_TYPE",
2085: "JS_STRING_ITERATOR_PROTOTYPE_TYPE",
2086: "JS_TYPED_ARRAY_PROTOTYPE_TYPE",
2087: "JS_MAP_KEY_ITERATOR_TYPE",
2088: "JS_MAP_KEY_VALUE_ITERATOR_TYPE",
2089: "JS_MAP_VALUE_ITERATOR_TYPE",
2090: "JS_SET_KEY_VALUE_ITERATOR_TYPE",
2091: "JS_SET_VALUE_ITERATOR_TYPE",
2092: "JS_GENERATOR_OBJECT_TYPE",
2093: "JS_ASYNC_FUNCTION_OBJECT_TYPE",
2094: "JS_ASYNC_GENERATOR_OBJECT_TYPE",
2095: "JS_DATA_VIEW_TYPE",
2096: "JS_TYPED_ARRAY_TYPE",
2097: "JS_MAP_TYPE",
2098: "JS_SET_TYPE",
2099: "JS_WEAK_MAP_TYPE",
2100: "JS_WEAK_SET_TYPE",
2101: "JS_ARGUMENTS_OBJECT_TYPE",
2102: "JS_ARRAY_TYPE",
2103: "JS_ARRAY_BUFFER_TYPE",
2104: "JS_ARRAY_ITERATOR_TYPE",
2105: "JS_ASYNC_FROM_SYNC_ITERATOR_TYPE",
2106: "JS_COLLATOR_TYPE",
2107: "JS_CONTEXT_EXTENSION_OBJECT_TYPE",
2108: "JS_DATE_TYPE",
2109: "JS_DATE_TIME_FORMAT_TYPE",
2110: "JS_DISPLAY_NAMES_TYPE",
2111: "JS_ERROR_TYPE",
2112: "JS_FINALIZATION_REGISTRY_TYPE",
2113: "JS_LIST_FORMAT_TYPE",
2114: "JS_LOCALE_TYPE",
2115: "JS_MESSAGE_OBJECT_TYPE",
2116: "JS_NUMBER_FORMAT_TYPE",
2117: "JS_PLURAL_RULES_TYPE",
2118: "JS_PROMISE_TYPE",
2119: "JS_REG_EXP_TYPE",
2120: "JS_REG_EXP_STRING_ITERATOR_TYPE",
2121: "JS_RELATIVE_TIME_FORMAT_TYPE",
2122: "JS_SEGMENT_ITERATOR_TYPE",
2123: "JS_SEGMENTER_TYPE",
2124: "JS_SEGMENTS_TYPE",
2125: "JS_SHADOW_REALM_TYPE",
2126: "JS_SHARED_STRUCT_TYPE",
2127: "JS_STRING_ITERATOR_TYPE",
2128: "JS_TEMPORAL_CALENDAR_TYPE",
2129: "JS_TEMPORAL_DURATION_TYPE",
2130: "JS_TEMPORAL_INSTANT_TYPE",
2131: "JS_TEMPORAL_PLAIN_DATE_TYPE",
2132: "JS_TEMPORAL_PLAIN_DATE_TIME_TYPE",
2133: "JS_TEMPORAL_PLAIN_MONTH_DAY_TYPE",
2134: "JS_TEMPORAL_PLAIN_TIME_TYPE",
2135: "JS_TEMPORAL_PLAIN_YEAR_MONTH_TYPE",
2136: "JS_TEMPORAL_TIME_ZONE_TYPE",
2137: "JS_TEMPORAL_ZONED_DATE_TIME_TYPE",
2138: "JS_V8_BREAK_ITERATOR_TYPE",
2139: "JS_WEAK_REF_TYPE",
2140: "WASM_GLOBAL_OBJECT_TYPE",
2141: "WASM_INSTANCE_OBJECT_TYPE",
2142: "WASM_MEMORY_OBJECT_TYPE",
2143: "WASM_MODULE_OBJECT_TYPE",
2144: "WASM_SUSPENDER_OBJECT_TYPE",
2145: "WASM_TABLE_OBJECT_TYPE",
2146: "WASM_TAG_OBJECT_TYPE",
2147: "WASM_VALUE_OBJECT_TYPE",
}
# List of known V8 maps.
KNOWN_MAPS = {
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("read_only_space", 0x0656d): (174, "Tuple2Map"),
("read_only_space", 0x06595): (175, "WasmContinuationObjectMap"),
("read_only_space", 0x065bd): (176, "WasmExceptionTagMap"),
("read_only_space", 0x065e5): (177, "WasmIndirectFunctionTableMap"),
("read_only_space", 0x0660d): (197, "SloppyArgumentsElementsMap"),
("read_only_space", 0x06635): (233, "DescriptorArrayMap"),
("read_only_space", 0x0665d): (219, "UncompiledDataWithoutPreparseDataMap"),
("read_only_space", 0x06685): (217, "UncompiledDataWithPreparseDataMap"),
("read_only_space", 0x066ad): (220, "UncompiledDataWithoutPreparseDataWithJobMap"),
("read_only_space", 0x066d5): (218, "UncompiledDataWithPreparseDataAndJobMap"),
("read_only_space", 0x066fd): (251, "OnHeapBasicBlockProfilerDataMap"),
("read_only_space", 0x06725): (198, "TurbofanBitsetTypeMap"),
("read_only_space", 0x0674d): (202, "TurbofanUnionTypeMap"),
("read_only_space", 0x06775): (201, "TurbofanRangeTypeMap"),
("read_only_space", 0x0679d): (199, "TurbofanHeapConstantTypeMap"),
("read_only_space", 0x067c5): (200, "TurbofanOtherNumberConstantTypeMap"),
("read_only_space", 0x067ed): (247, "InternalClassMap"),
("read_only_space", 0x06815): (258, "SmiPairMap"),
("read_only_space", 0x0683d): (257, "SmiBoxMap"),
("read_only_space", 0x06865): (225, "ExportedSubClassBaseMap"),
("read_only_space", 0x0688d): (226, "ExportedSubClassMap"),
("read_only_space", 0x068b5): (231, "AbstractInternalClassSubclass1Map"),
("read_only_space", 0x068dd): (232, "AbstractInternalClassSubclass2Map"),
("read_only_space", 0x06905): (196, "InternalClassWithSmiElementsMap"),
("read_only_space", 0x0692d): (248, "InternalClassWithStructElementsMap"),
("read_only_space", 0x06955): (227, "ExportedSubClass2Map"),
("read_only_space", 0x0697d): (259, "SortStateMap"),
("read_only_space", 0x069a5): (146, "AllocationSiteWithWeakNextMap"),
("read_only_space", 0x069cd): (146, "AllocationSiteWithoutWeakNextMap"),
("read_only_space", 0x069f5): (137, "LoadHandler1Map"),
("read_only_space", 0x06a1d): (137, "LoadHandler2Map"),
("read_only_space", 0x06a45): (137, "LoadHandler3Map"),
("read_only_space", 0x06a6d): (138, "StoreHandler0Map"),
("read_only_space", 0x06a95): (138, "StoreHandler1Map"),
("read_only_space", 0x06abd): (138, "StoreHandler2Map"),
("read_only_space", 0x06ae5): (138, "StoreHandler3Map"),
("map_space", 0x02151): (1057, "ExternalMap"),
("map_space", 0x02179): (2115, "JSMessageObjectMap"),
}
# List of known V8 objects.
KNOWN_OBJECTS = {
("read_only_space", 0x021f1): "EmptyWeakArrayList",
("read_only_space", 0x021fd): "EmptyDescriptorArray",
("read_only_space", 0x02235): "EmptyEnumCache",
("read_only_space", 0x02269): "EmptyFixedArray",
("read_only_space", 0x02271): "NullValue",
("read_only_space", 0x02379): "UninitializedValue",
("read_only_space", 0x023f1): "UndefinedValue",
("read_only_space", 0x02435): "NanValue",
("read_only_space", 0x02469): "TheHoleValue",
("read_only_space", 0x02495): "HoleNanValue",
("read_only_space", 0x024c9): "TrueValue",
("read_only_space", 0x02509): "FalseValue",
("read_only_space", 0x02539): "empty_string",
("read_only_space", 0x02775): "EmptyScopeInfo",
("read_only_space", 0x027ad): "ArgumentsMarker",
("read_only_space", 0x0280d): "Exception",
("read_only_space", 0x02869): "TerminationException",
("read_only_space", 0x028d1): "OptimizedOut",
("read_only_space", 0x02931): "StaleRegister",
("read_only_space", 0x03431): "EmptyPropertyArray",
("read_only_space", 0x03439): "EmptyByteArray",
("read_only_space", 0x03441): "EmptyObjectBoilerplateDescription",
("read_only_space", 0x03475): "EmptyArrayBoilerplateDescription",
("read_only_space", 0x03481): "EmptyClosureFeedbackCellArray",
("read_only_space", 0x03489): "EmptySlowElementDictionary",
("read_only_space", 0x034ad): "EmptyOrderedHashMap",
("read_only_space", 0x034c1): "EmptyOrderedHashSet",
("read_only_space", 0x034d5): "EmptyFeedbackMetadata",
("read_only_space", 0x034e1): "EmptyPropertyDictionary",
("read_only_space", 0x03509): "EmptyOrderedPropertyDictionary",
("read_only_space", 0x03521): "EmptySwissPropertyDictionary",
("read_only_space", 0x03575): "NoOpInterceptorInfo",
("read_only_space", 0x0359d): "EmptyArrayList",
("read_only_space", 0x035a9): "EmptyWeakFixedArray",
("read_only_space", 0x035b1): "InfinityValue",
("read_only_space", 0x035bd): "MinusZeroValue",
("read_only_space", 0x035c9): "MinusInfinityValue",
("read_only_space", 0x035d5): "SelfReferenceMarker",
("read_only_space", 0x03615): "BasicBlockCountersMarker",
("read_only_space", 0x03659): "OffHeapTrampolineRelocationInfo",
("read_only_space", 0x03665): "GlobalThisBindingScopeInfo",
("read_only_space", 0x03695): "EmptyFunctionScopeInfo",
("read_only_space", 0x036b9): "NativeScopeInfo",
("read_only_space", 0x036d1): "HashSeed",
("old_space", 0x0421d): "ArgumentsIteratorAccessor",
("old_space", 0x04261): "ArrayLengthAccessor",
("old_space", 0x042a5): "BoundFunctionLengthAccessor",
("old_space", 0x042e9): "BoundFunctionNameAccessor",
("old_space", 0x0432d): "ErrorStackAccessor",
("old_space", 0x04371): "FunctionArgumentsAccessor",
("old_space", 0x043b5): "FunctionCallerAccessor",
("old_space", 0x043f9): "FunctionNameAccessor",
("old_space", 0x0443d): "FunctionLengthAccessor",
("old_space", 0x04481): "FunctionPrototypeAccessor",
("old_space", 0x044c5): "StringLengthAccessor",
("old_space", 0x04509): "InvalidPrototypeValidityCell",
("old_space", 0x04511): "EmptyScript",
("old_space", 0x04551): "ManyClosuresCell",
("old_space", 0x0455d): "ArrayConstructorProtector",
("old_space", 0x04571): "NoElementsProtector",
("old_space", 0x04585): "MegaDOMProtector",
("old_space", 0x04599): "IsConcatSpreadableProtector",
("old_space", 0x045ad): "ArraySpeciesProtector",
("old_space", 0x045c1): "TypedArraySpeciesProtector",
("old_space", 0x045d5): "PromiseSpeciesProtector",
("old_space", 0x045e9): "RegExpSpeciesProtector",
("old_space", 0x045fd): "StringLengthProtector",
("old_space", 0x04611): "ArrayIteratorProtector",
("old_space", 0x04625): "ArrayBufferDetachingProtector",
("old_space", 0x04639): "PromiseHookProtector",
("old_space", 0x0464d): "PromiseResolveProtector",
("old_space", 0x04661): "MapIteratorProtector",
("old_space", 0x04675): "PromiseThenProtector",
("old_space", 0x04689): "SetIteratorProtector",
("old_space", 0x0469d): "StringIteratorProtector",
("old_space", 0x046b1): "SingleCharacterStringCache",
("old_space", 0x04ab9): "StringSplitCache",
("old_space", 0x04ec1): "RegExpMultipleCache",
("old_space", 0x052c9): "BuiltinsConstantsTable",
("old_space", 0x056f5): "AsyncFunctionAwaitRejectSharedFun",
("old_space", 0x05719): "AsyncFunctionAwaitResolveSharedFun",
("old_space", 0x0573d): "AsyncGeneratorAwaitRejectSharedFun",
("old_space", 0x05761): "AsyncGeneratorAwaitResolveSharedFun",
("old_space", 0x05785): "AsyncGeneratorYieldResolveSharedFun",
("old_space", 0x057a9): "AsyncGeneratorReturnResolveSharedFun",
("old_space", 0x057cd): "AsyncGeneratorReturnClosedRejectSharedFun",
("old_space", 0x057f1): "AsyncGeneratorReturnClosedResolveSharedFun",
("old_space", 0x05815): "AsyncIteratorValueUnwrapSharedFun",
("old_space", 0x05839): "PromiseAllResolveElementSharedFun",
("old_space", 0x0585d): "PromiseAllSettledResolveElementSharedFun",
("old_space", 0x05881): "PromiseAllSettledRejectElementSharedFun",
("old_space", 0x058a5): "PromiseAnyRejectElementSharedFun",
("old_space", 0x058c9): "PromiseCapabilityDefaultRejectSharedFun",
("old_space", 0x058ed): "PromiseCapabilityDefaultResolveSharedFun",
("old_space", 0x05911): "PromiseCatchFinallySharedFun",
("old_space", 0x05935): "PromiseGetCapabilitiesExecutorSharedFun",
("old_space", 0x05959): "PromiseThenFinallySharedFun",
("old_space", 0x0597d): "PromiseThrowerFinallySharedFun",
("old_space", 0x059a1): "PromiseValueThunkFinallySharedFun",
("old_space", 0x059c5): "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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