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v8/tools/v8heapconst.py
Manos Koukoutos 455d38ff8d Reland "[wasm-gc] Introduce wasm null object" 
This is a reland of commit 2e357c4814

Difference compared to original: Initialize wasm-null object's
payload.

Original change's description:
> [wasm-gc] Introduce wasm null object
>
> We introduce a wasm null object, separate from JS null. Its purpose is
> to support trapping null accesses for wasm objects.
> This will be achieved by allocating a large payload for it (larger than
> any wasm struct) and memory-protecting it (see linked CL). The two null
> objects get mapped to each other at the wasm-JS boundary.
> Since externref objects live on the JS side of the boundary,
> null-related instructions in wasm now need an additional type argument
> to handle the correct null object.
>
> Bug: v8:7748
> Change-Id: I06da00fcd279cc5376e69ab7858e3782f5b5081e
> Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/4200639
> Reviewed-by: Jakob Kummerow <jkummerow@chromium.org>
> Reviewed-by: Michael Lippautz <mlippautz@chromium.org>
> Commit-Queue: Manos Koukoutos <manoskouk@chromium.org>
> Cr-Commit-Position: refs/heads/main@{#85648}

Bug: v8:7748
Change-Id: I46413d05f0213229f1d19277ae98dbb8df5afdf9
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/4224011
Reviewed-by: Michael Lippautz <mlippautz@chromium.org>
Reviewed-by: Jakob Kummerow <jkummerow@chromium.org>
Commit-Queue: Manos Koukoutos <manoskouk@chromium.org>
Cr-Commit-Position: refs/heads/main@{#85705}
2023-02-07 11:19:47 +00:00

646 lines
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#!/usr/bin/env python3
# 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",
98: "SHARED_EXTERNAL_STRING_TYPE",
101: "SHARED_THIN_STRING_TYPE",
104: "SHARED_ONE_BYTE_STRING_TYPE",
106: "SHARED_EXTERNAL_ONE_BYTE_STRING_TYPE",
109: "SHARED_THIN_ONE_BYTE_STRING_TYPE",
114: "SHARED_UNCACHED_EXTERNAL_STRING_TYPE",
122: "SHARED_UNCACHED_EXTERNAL_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_PAIR_TYPE",
143: "ALIASED_ARGUMENTS_ENTRY_TYPE",
144: "ALLOCATION_MEMENTO_TYPE",
145: "ALLOCATION_SITE_TYPE",
146: "ARRAY_BOILERPLATE_DESCRIPTION_TYPE",
147: "ASM_WASM_DATA_TYPE",
148: "ASYNC_GENERATOR_REQUEST_TYPE",
149: "BREAK_POINT_TYPE",
150: "BREAK_POINT_INFO_TYPE",
151: "CALL_SITE_INFO_TYPE",
152: "CLASS_POSITIONS_TYPE",
153: "DEBUG_INFO_TYPE",
154: "ENUM_CACHE_TYPE",
155: "ERROR_STACK_DATA_TYPE",
156: "FEEDBACK_CELL_TYPE",
157: "FUNCTION_TEMPLATE_RARE_DATA_TYPE",
158: "INTERCEPTOR_INFO_TYPE",
159: "INTERPRETER_DATA_TYPE",
160: "MODULE_REQUEST_TYPE",
161: "PROMISE_CAPABILITY_TYPE",
162: "PROMISE_ON_STACK_TYPE",
163: "PROMISE_REACTION_TYPE",
164: "PROPERTY_DESCRIPTOR_OBJECT_TYPE",
165: "PROTOTYPE_INFO_TYPE",
166: "REG_EXP_BOILERPLATE_DESCRIPTION_TYPE",
167: "SCRIPT_TYPE",
168: "SCRIPT_OR_MODULE_TYPE",
169: "SOURCE_TEXT_MODULE_INFO_ENTRY_TYPE",
170: "STACK_FRAME_INFO_TYPE",
171: "TEMPLATE_OBJECT_DESCRIPTION_TYPE",
172: "TUPLE2_TYPE",
173: "WASM_EXCEPTION_TAG_TYPE",
174: "WASM_INDIRECT_FUNCTION_TABLE_TYPE",
175: "FIXED_ARRAY_TYPE",
176: "HASH_TABLE_TYPE",
177: "EPHEMERON_HASH_TABLE_TYPE",
178: "GLOBAL_DICTIONARY_TYPE",
179: "NAME_DICTIONARY_TYPE",
180: "NAME_TO_INDEX_HASH_TABLE_TYPE",
181: "NUMBER_DICTIONARY_TYPE",
182: "ORDERED_HASH_MAP_TYPE",
183: "ORDERED_HASH_SET_TYPE",
184: "ORDERED_NAME_DICTIONARY_TYPE",
185: "REGISTERED_SYMBOL_TABLE_TYPE",
186: "SIMPLE_NUMBER_DICTIONARY_TYPE",
187: "CLOSURE_FEEDBACK_CELL_ARRAY_TYPE",
188: "OBJECT_BOILERPLATE_DESCRIPTION_TYPE",
189: "SCRIPT_CONTEXT_TABLE_TYPE",
190: "BYTE_ARRAY_TYPE",
191: "BYTECODE_ARRAY_TYPE",
192: "FIXED_DOUBLE_ARRAY_TYPE",
193: "INTERNAL_CLASS_WITH_SMI_ELEMENTS_TYPE",
194: "SLOPPY_ARGUMENTS_ELEMENTS_TYPE",
195: "TURBOSHAFT_FLOAT64_TYPE_TYPE",
196: "TURBOSHAFT_FLOAT64_RANGE_TYPE_TYPE",
197: "TURBOSHAFT_FLOAT64_SET_TYPE_TYPE",
198: "TURBOSHAFT_WORD32_TYPE_TYPE",
199: "TURBOSHAFT_WORD32_RANGE_TYPE_TYPE",
200: "TURBOSHAFT_WORD32_SET_TYPE_TYPE",
201: "TURBOSHAFT_WORD64_TYPE_TYPE",
202: "TURBOSHAFT_WORD64_RANGE_TYPE_TYPE",
203: "TURBOSHAFT_WORD64_SET_TYPE_TYPE",
204: "FOREIGN_TYPE",
205: "AWAIT_CONTEXT_TYPE",
206: "BLOCK_CONTEXT_TYPE",
207: "CATCH_CONTEXT_TYPE",
208: "DEBUG_EVALUATE_CONTEXT_TYPE",
209: "EVAL_CONTEXT_TYPE",
210: "FUNCTION_CONTEXT_TYPE",
211: "MODULE_CONTEXT_TYPE",
212: "NATIVE_CONTEXT_TYPE",
213: "SCRIPT_CONTEXT_TYPE",
214: "WITH_CONTEXT_TYPE",
215: "TURBOFAN_BITSET_TYPE_TYPE",
216: "TURBOFAN_HEAP_CONSTANT_TYPE_TYPE",
217: "TURBOFAN_OTHER_NUMBER_CONSTANT_TYPE_TYPE",
218: "TURBOFAN_RANGE_TYPE_TYPE",
219: "TURBOFAN_UNION_TYPE_TYPE",
220: "UNCOMPILED_DATA_WITH_PREPARSE_DATA_TYPE",
221: "UNCOMPILED_DATA_WITH_PREPARSE_DATA_AND_JOB_TYPE",
222: "UNCOMPILED_DATA_WITHOUT_PREPARSE_DATA_TYPE",
223: "UNCOMPILED_DATA_WITHOUT_PREPARSE_DATA_WITH_JOB_TYPE",
224: "WASM_FUNCTION_DATA_TYPE",
225: "WASM_CAPI_FUNCTION_DATA_TYPE",
226: "WASM_EXPORTED_FUNCTION_DATA_TYPE",
227: "WASM_JS_FUNCTION_DATA_TYPE",
228: "EXPORTED_SUB_CLASS_BASE_TYPE",
229: "EXPORTED_SUB_CLASS_TYPE",
230: "EXPORTED_SUB_CLASS2_TYPE",
231: "SMALL_ORDERED_HASH_MAP_TYPE",
232: "SMALL_ORDERED_HASH_SET_TYPE",
233: "SMALL_ORDERED_NAME_DICTIONARY_TYPE",
234: "ABSTRACT_INTERNAL_CLASS_SUBCLASS1_TYPE",
235: "ABSTRACT_INTERNAL_CLASS_SUBCLASS2_TYPE",
236: "DESCRIPTOR_ARRAY_TYPE",
237: "STRONG_DESCRIPTOR_ARRAY_TYPE",
238: "SOURCE_TEXT_MODULE_TYPE",
239: "SYNTHETIC_MODULE_TYPE",
240: "WEAK_FIXED_ARRAY_TYPE",
241: "TRANSITION_ARRAY_TYPE",
242: "ACCESSOR_INFO_TYPE",
243: "CALL_HANDLER_INFO_TYPE",
244: "CELL_TYPE",
245: "CODE_TYPE",
246: "COVERAGE_INFO_TYPE",
247: "EMBEDDER_DATA_ARRAY_TYPE",
248: "FEEDBACK_METADATA_TYPE",
249: "FEEDBACK_VECTOR_TYPE",
250: "FILLER_TYPE",
251: "FREE_SPACE_TYPE",
252: "INSTRUCTION_STREAM_TYPE",
253: "INTERNAL_CLASS_TYPE",
254: "INTERNAL_CLASS_WITH_STRUCT_ELEMENTS_TYPE",
255: "MAP_TYPE",
256: "MEGA_DOM_HANDLER_TYPE",
257: "ON_HEAP_BASIC_BLOCK_PROFILER_DATA_TYPE",
258: "PREPARSE_DATA_TYPE",
259: "PROPERTY_ARRAY_TYPE",
260: "PROPERTY_CELL_TYPE",
261: "SCOPE_INFO_TYPE",
262: "SHARED_FUNCTION_INFO_TYPE",
263: "SMI_BOX_TYPE",
264: "SMI_PAIR_TYPE",
265: "SORT_STATE_TYPE",
266: "SWISS_NAME_DICTIONARY_TYPE",
267: "WASM_API_FUNCTION_REF_TYPE",
268: "WASM_CONTINUATION_OBJECT_TYPE",
269: "WASM_INTERNAL_FUNCTION_TYPE",
270: "WASM_NULL_TYPE",
271: "WASM_RESUME_DATA_TYPE",
272: "WASM_STRING_VIEW_ITER_TYPE",
273: "WASM_TYPE_INFO_TYPE",
274: "WEAK_ARRAY_LIST_TYPE",
275: "WEAK_CELL_TYPE",
276: "WASM_ARRAY_TYPE",
277: "WASM_STRUCT_TYPE",
278: "JS_PROXY_TYPE",
1057: "JS_OBJECT_TYPE",
279: "JS_GLOBAL_OBJECT_TYPE",
280: "JS_GLOBAL_PROXY_TYPE",
281: "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_ATOMICS_CONDITION_TYPE",
2097: "JS_ATOMICS_MUTEX_TYPE",
2098: "JS_SHARED_ARRAY_TYPE",
2099: "JS_SHARED_STRUCT_TYPE",
2100: "JS_GENERATOR_OBJECT_TYPE",
2101: "JS_ASYNC_FUNCTION_OBJECT_TYPE",
2102: "JS_ASYNC_GENERATOR_OBJECT_TYPE",
2103: "JS_MAP_TYPE",
2104: "JS_SET_TYPE",
2105: "JS_WEAK_MAP_TYPE",
2106: "JS_WEAK_SET_TYPE",
2107: "JS_ARGUMENTS_OBJECT_TYPE",
2108: "JS_ARRAY_TYPE",
2109: "JS_ARRAY_ITERATOR_TYPE",
2110: "JS_ASYNC_FROM_SYNC_ITERATOR_TYPE",
2111: "JS_COLLATOR_TYPE",
2112: "JS_CONTEXT_EXTENSION_OBJECT_TYPE",
2113: "JS_DATE_TYPE",
2114: "JS_DATE_TIME_FORMAT_TYPE",
2115: "JS_DISPLAY_NAMES_TYPE",
2116: "JS_DURATION_FORMAT_TYPE",
2117: "JS_ERROR_TYPE",
2118: "JS_EXTERNAL_OBJECT_TYPE",
2119: "JS_FINALIZATION_REGISTRY_TYPE",
2120: "JS_LIST_FORMAT_TYPE",
2121: "JS_LOCALE_TYPE",
2122: "JS_MESSAGE_OBJECT_TYPE",
2123: "JS_NUMBER_FORMAT_TYPE",
2124: "JS_PLURAL_RULES_TYPE",
2125: "JS_RAW_JSON_TYPE",
2126: "JS_REG_EXP_TYPE",
2127: "JS_REG_EXP_STRING_ITERATOR_TYPE",
2128: "JS_RELATIVE_TIME_FORMAT_TYPE",
2129: "JS_SEGMENT_ITERATOR_TYPE",
2130: "JS_SEGMENTER_TYPE",
2131: "JS_SEGMENTS_TYPE",
2132: "JS_SHADOW_REALM_TYPE",
2133: "JS_STRING_ITERATOR_TYPE",
2134: "JS_TEMPORAL_CALENDAR_TYPE",
2135: "JS_TEMPORAL_DURATION_TYPE",
2136: "JS_TEMPORAL_INSTANT_TYPE",
2137: "JS_TEMPORAL_PLAIN_DATE_TYPE",
2138: "JS_TEMPORAL_PLAIN_DATE_TIME_TYPE",
2139: "JS_TEMPORAL_PLAIN_MONTH_DAY_TYPE",
2140: "JS_TEMPORAL_PLAIN_TIME_TYPE",
2141: "JS_TEMPORAL_PLAIN_YEAR_MONTH_TYPE",
2142: "JS_TEMPORAL_TIME_ZONE_TYPE",
2143: "JS_TEMPORAL_ZONED_DATE_TIME_TYPE",
2144: "JS_V8_BREAK_ITERATOR_TYPE",
2145: "JS_WEAK_REF_TYPE",
2146: "WASM_EXCEPTION_PACKAGE_TYPE",
2147: "WASM_GLOBAL_OBJECT_TYPE",
2148: "WASM_INSTANCE_OBJECT_TYPE",
2149: "WASM_MEMORY_OBJECT_TYPE",
2150: "WASM_MODULE_OBJECT_TYPE",
2151: "WASM_SUSPENDER_OBJECT_TYPE",
2152: "WASM_TABLE_OBJECT_TYPE",
2153: "WASM_TAG_OBJECT_TYPE",
2154: "WASM_VALUE_OBJECT_TYPE",
}
# List of known V8 maps.
KNOWN_MAPS = {
("read_only_space", 0x02141): (255, "MetaMap"),
("read_only_space", 0x02169): (175, "FixedArrayMap"),
("read_only_space", 0x02191): (240, "WeakFixedArrayMap"),
("read_only_space", 0x021b9): (274, "WeakArrayListMap"),
("read_only_space", 0x021e1): (175, "FixedCOWArrayMap"),
("read_only_space", 0x02209): (236, "DescriptorArrayMap"),
("read_only_space", 0x02231): (131, "UndefinedMap"),
("read_only_space", 0x02259): (131, "NullMap"),
("read_only_space", 0x02281): (131, "TheHoleMap"),
("read_only_space", 0x02319): (132, "PromiseFulfillReactionJobTaskMap"),
("read_only_space", 0x02341): (133, "PromiseRejectReactionJobTaskMap"),
("read_only_space", 0x02369): (134, "CallableTaskMap"),
("read_only_space", 0x02391): (135, "CallbackTaskMap"),
("read_only_space", 0x023b9): (136, "PromiseResolveThenableJobTaskMap"),
("read_only_space", 0x023e1): (139, "FunctionTemplateInfoMap"),
("read_only_space", 0x02409): (140, "ObjectTemplateInfoMap"),
("read_only_space", 0x02431): (141, "AccessCheckInfoMap"),
("read_only_space", 0x02459): (142, "AccessorPairMap"),
("read_only_space", 0x02481): (143, "AliasedArgumentsEntryMap"),
("read_only_space", 0x024a9): (144, "AllocationMementoMap"),
("read_only_space", 0x024d1): (146, "ArrayBoilerplateDescriptionMap"),
("read_only_space", 0x024f9): (147, "AsmWasmDataMap"),
("read_only_space", 0x02521): (148, "AsyncGeneratorRequestMap"),
("read_only_space", 0x02549): (149, "BreakPointMap"),
("read_only_space", 0x02571): (150, "BreakPointInfoMap"),
("read_only_space", 0x02599): (151, "CallSiteInfoMap"),
("read_only_space", 0x025c1): (152, "ClassPositionsMap"),
("read_only_space", 0x025e9): (153, "DebugInfoMap"),
("read_only_space", 0x02611): (154, "EnumCacheMap"),
("read_only_space", 0x02639): (155, "ErrorStackDataMap"),
("read_only_space", 0x02661): (157, "FunctionTemplateRareDataMap"),
("read_only_space", 0x02689): (158, "InterceptorInfoMap"),
("read_only_space", 0x026b1): (159, "InterpreterDataMap"),
("read_only_space", 0x026d9): (160, "ModuleRequestMap"),
("read_only_space", 0x02701): (161, "PromiseCapabilityMap"),
("read_only_space", 0x02729): (162, "PromiseOnStackMap"),
("read_only_space", 0x02751): (163, "PromiseReactionMap"),
("read_only_space", 0x02779): (164, "PropertyDescriptorObjectMap"),
("read_only_space", 0x027a1): (165, "PrototypeInfoMap"),
("read_only_space", 0x027c9): (166, "RegExpBoilerplateDescriptionMap"),
("read_only_space", 0x027f1): (167, "ScriptMap"),
("read_only_space", 0x02819): (168, "ScriptOrModuleMap"),
("read_only_space", 0x02841): (169, "SourceTextModuleInfoEntryMap"),
("read_only_space", 0x02869): (170, "StackFrameInfoMap"),
("read_only_space", 0x02891): (171, "TemplateObjectDescriptionMap"),
("read_only_space", 0x028b9): (172, "Tuple2Map"),
("read_only_space", 0x028e1): (173, "WasmExceptionTagMap"),
("read_only_space", 0x02909): (174, "WasmIndirectFunctionTableMap"),
("read_only_space", 0x02931): (145, "AllocationSiteWithWeakNextMap"),
("read_only_space", 0x02959): (145, "AllocationSiteWithoutWeakNextMap"),
("read_only_space", 0x02981): (137, "LoadHandler1Map"),
("read_only_space", 0x029a9): (137, "LoadHandler2Map"),
("read_only_space", 0x029d1): (137, "LoadHandler3Map"),
("read_only_space", 0x029f9): (138, "StoreHandler0Map"),
("read_only_space", 0x02a21): (138, "StoreHandler1Map"),
("read_only_space", 0x02a49): (138, "StoreHandler2Map"),
("read_only_space", 0x02a71): (138, "StoreHandler3Map"),
("read_only_space", 0x02ab5): (261, "ScopeInfoMap"),
("read_only_space", 0x02add): (175, "ModuleInfoMap"),
("read_only_space", 0x02b05): (187, "ClosureFeedbackCellArrayMap"),
("read_only_space", 0x02b2d): (249, "FeedbackVectorMap"),
("read_only_space", 0x02b55): (130, "HeapNumberMap"),
("read_only_space", 0x02b7d): (204, "ForeignMap"),
("read_only_space", 0x02ba5): (256, "MegaDomHandlerMap"),
("read_only_space", 0x02bcd): (131, "BooleanMap"),
("read_only_space", 0x02bf5): (131, "UninitializedMap"),
("read_only_space", 0x02c1d): (131, "ArgumentsMarkerMap"),
("read_only_space", 0x02c45): (131, "ExceptionMap"),
("read_only_space", 0x02c6d): (131, "TerminationExceptionMap"),
("read_only_space", 0x02c95): (131, "OptimizedOutMap"),
("read_only_space", 0x02cbd): (131, "StaleRegisterMap"),
("read_only_space", 0x02ce5): (131, "SelfReferenceMarkerMap"),
("read_only_space", 0x02d0d): (131, "BasicBlockCountersMarkerMap"),
("read_only_space", 0x02d35): (129, "BigIntMap"),
("read_only_space", 0x02d5d): (128, "SymbolMap"),
("read_only_space", 0x02d85): (32, "StringMap"),
("read_only_space", 0x02dad): (40, "OneByteStringMap"),
("read_only_space", 0x02dd5): (33, "ConsStringMap"),
("read_only_space", 0x02dfd): (41, "ConsOneByteStringMap"),
("read_only_space", 0x02e25): (35, "SlicedStringMap"),
("read_only_space", 0x02e4d): (43, "SlicedOneByteStringMap"),
("read_only_space", 0x02e75): (34, "ExternalStringMap"),
("read_only_space", 0x02e9d): (42, "ExternalOneByteStringMap"),
("read_only_space", 0x02ec5): (50, "UncachedExternalStringMap"),
("read_only_space", 0x02eed): (58, "UncachedExternalOneByteStringMap"),
("read_only_space", 0x02f15): (0, "InternalizedStringMap"),
("read_only_space", 0x02f3d): (8, "OneByteInternalizedStringMap"),
("read_only_space", 0x02f65): (2, "ExternalInternalizedStringMap"),
("read_only_space", 0x02f8d): (10, "ExternalOneByteInternalizedStringMap"),
("read_only_space", 0x02fb5): (18, "UncachedExternalInternalizedStringMap"),
("read_only_space", 0x02fdd): (26, "UncachedExternalOneByteInternalizedStringMap"),
("read_only_space", 0x03005): (37, "ThinStringMap"),
("read_only_space", 0x0302d): (45, "ThinOneByteStringMap"),
("read_only_space", 0x03055): (96, "SharedStringMap"),
("read_only_space", 0x0307d): (104, "SharedOneByteStringMap"),
("read_only_space", 0x030a5): (98, "SharedExternalStringMap"),
("read_only_space", 0x030cd): (106, "SharedExternalOneByteStringMap"),
("read_only_space", 0x030f5): (114, "SharedUncachedExternalStringMap"),
("read_only_space", 0x0311d): (122, "SharedUncachedExternalOneByteStringMap"),
("read_only_space", 0x03145): (101, "SharedThinStringMap"),
("read_only_space", 0x0316d): (109, "SharedThinOneByteStringMap"),
("read_only_space", 0x03195): (192, "FixedDoubleArrayMap"),
("read_only_space", 0x031bd): (248, "FeedbackMetadataArrayMap"),
("read_only_space", 0x031e5): (190, "ByteArrayMap"),
("read_only_space", 0x0320d): (191, "BytecodeArrayMap"),
("read_only_space", 0x03235): (251, "FreeSpaceMap"),
("read_only_space", 0x0325d): (259, "PropertyArrayMap"),
("read_only_space", 0x03285): (231, "SmallOrderedHashMapMap"),
("read_only_space", 0x032ad): (232, "SmallOrderedHashSetMap"),
("read_only_space", 0x032d5): (233, "SmallOrderedNameDictionaryMap"),
("read_only_space", 0x032fd): (222, "UncompiledDataWithoutPreparseDataMap"),
("read_only_space", 0x03325): (220, "UncompiledDataWithPreparseDataMap"),
("read_only_space", 0x0334d): (223, "UncompiledDataWithoutPreparseDataWithJobMap"),
("read_only_space", 0x03375): (221, "UncompiledDataWithPreparseDataAndJobMap"),
("read_only_space", 0x0339d): (257, "OnHeapBasicBlockProfilerDataMap"),
("read_only_space", 0x033c5): (215, "TurbofanBitsetTypeMap"),
("read_only_space", 0x033ed): (219, "TurbofanUnionTypeMap"),
("read_only_space", 0x03415): (218, "TurbofanRangeTypeMap"),
("read_only_space", 0x0343d): (216, "TurbofanHeapConstantTypeMap"),
("read_only_space", 0x03465): (217, "TurbofanOtherNumberConstantTypeMap"),
("read_only_space", 0x0348d): (198, "TurboshaftWord32TypeMap"),
("read_only_space", 0x034b5): (199, "TurboshaftWord32RangeTypeMap"),
("read_only_space", 0x034dd): (201, "TurboshaftWord64TypeMap"),
("read_only_space", 0x03505): (202, "TurboshaftWord64RangeTypeMap"),
("read_only_space", 0x0352d): (195, "TurboshaftFloat64TypeMap"),
("read_only_space", 0x03555): (196, "TurboshaftFloat64RangeTypeMap"),
("read_only_space", 0x0357d): (253, "InternalClassMap"),
("read_only_space", 0x035a5): (264, "SmiPairMap"),
("read_only_space", 0x035cd): (263, "SmiBoxMap"),
("read_only_space", 0x035f5): (228, "ExportedSubClassBaseMap"),
("read_only_space", 0x0361d): (229, "ExportedSubClassMap"),
("read_only_space", 0x03645): (234, "AbstractInternalClassSubclass1Map"),
("read_only_space", 0x0366d): (235, "AbstractInternalClassSubclass2Map"),
("read_only_space", 0x03695): (230, "ExportedSubClass2Map"),
("read_only_space", 0x036bd): (265, "SortStateMap"),
("read_only_space", 0x036e5): (272, "WasmStringViewIterMap"),
("read_only_space", 0x0370d): (194, "SloppyArgumentsElementsMap"),
("read_only_space", 0x03735): (237, "StrongDescriptorArrayMap"),
("read_only_space", 0x0375d): (200, "TurboshaftWord32SetTypeMap"),
("read_only_space", 0x03785): (203, "TurboshaftWord64SetTypeMap"),
("read_only_space", 0x037ad): (197, "TurboshaftFloat64SetTypeMap"),
("read_only_space", 0x037d5): (193, "InternalClassWithSmiElementsMap"),
("read_only_space", 0x037fd): (254, "InternalClassWithStructElementsMap"),
("read_only_space", 0x03825): (252, "InstructionStreamMap"),
("read_only_space", 0x0384d): (244, "CellMap"),
("read_only_space", 0x0387d): (260, "GlobalPropertyCellMap"),
("read_only_space", 0x038a5): (250, "OnePointerFillerMap"),
("read_only_space", 0x038cd): (250, "TwoPointerFillerMap"),
("read_only_space", 0x038f5): (156, "NoClosuresCellMap"),
("read_only_space", 0x0391d): (156, "OneClosureCellMap"),
("read_only_space", 0x03945): (156, "ManyClosuresCellMap"),
("read_only_space", 0x0396d): (241, "TransitionArrayMap"),
("read_only_space", 0x03995): (176, "HashTableMap"),
("read_only_space", 0x039bd): (182, "OrderedHashMapMap"),
("read_only_space", 0x039e5): (183, "OrderedHashSetMap"),
("read_only_space", 0x03a0d): (184, "OrderedNameDictionaryMap"),
("read_only_space", 0x03a35): (179, "NameDictionaryMap"),
("read_only_space", 0x03a5d): (266, "SwissNameDictionaryMap"),
("read_only_space", 0x03a85): (178, "GlobalDictionaryMap"),
("read_only_space", 0x03aad): (181, "NumberDictionaryMap"),
("read_only_space", 0x03ad5): (186, "SimpleNumberDictionaryMap"),
("read_only_space", 0x03afd): (180, "NameToIndexHashTableMap"),
("read_only_space", 0x03b25): (185, "RegisteredSymbolTableMap"),
("read_only_space", 0x03b4d): (247, "EmbedderDataArrayMap"),
("read_only_space", 0x03b75): (177, "EphemeronHashTableMap"),
("read_only_space", 0x03b9d): (175, "ArrayListMap"),
("read_only_space", 0x03bc5): (189, "ScriptContextTableMap"),
("read_only_space", 0x03bed): (188, "ObjectBoilerplateDescriptionMap"),
("read_only_space", 0x03c15): (246, "CoverageInfoMap"),
("read_only_space", 0x03c3d): (242, "AccessorInfoMap"),
("read_only_space", 0x03c65): (243, "SideEffectCallHandlerInfoMap"),
("read_only_space", 0x03c8d): (243, "SideEffectFreeCallHandlerInfoMap"),
("read_only_space", 0x03cb5): (243, "NextCallSideEffectFreeCallHandlerInfoMap"),
("read_only_space", 0x03cdd): (258, "PreparseDataMap"),
("read_only_space", 0x03d05): (262, "SharedFunctionInfoMap"),
("read_only_space", 0x03d2d): (238, "SourceTextModuleMap"),
("read_only_space", 0x03d55): (239, "SyntheticModuleMap"),
("read_only_space", 0x03d7d): (245, "CodeMap"),
("read_only_space", 0x03da5): (267, "WasmApiFunctionRefMap"),
("read_only_space", 0x03dcd): (225, "WasmCapiFunctionDataMap"),
("read_only_space", 0x03df5): (226, "WasmExportedFunctionDataMap"),
("read_only_space", 0x03e1d): (269, "WasmInternalFunctionMap"),
("read_only_space", 0x03e45): (227, "WasmJSFunctionDataMap"),
("read_only_space", 0x03e6d): (271, "WasmResumeDataMap"),
("read_only_space", 0x03e95): (273, "WasmTypeInfoMap"),
("read_only_space", 0x03ebd): (268, "WasmContinuationObjectMap"),
("read_only_space", 0x03ee5): (270, "WasmNullMap"),
("read_only_space", 0x03f0d): (275, "WeakCellMap"),
("old_space", 0x043bd): (2118, "ExternalMap"),
("old_space", 0x043e5): (2122, "JSMessageObjectMap"),
}
# List of known V8 objects.
KNOWN_OBJECTS = {
("read_only_space", 0x022a9): "EmptyFixedArray",
("read_only_space", 0x022b1): "EmptyWeakFixedArray",
("read_only_space", 0x022b9): "EmptyWeakArrayList",
("read_only_space", 0x022c5): "NullValue",
("read_only_space", 0x022e1): "UndefinedValue",
("read_only_space", 0x022fd): "TheHoleValue",
("read_only_space", 0x02a99): "EmptyEnumCache",
("read_only_space", 0x02aa5): "EmptyDescriptorArray",
("read_only_space", 0x03875): "InvalidPrototypeValidityCell",
("read_only_space", 0x03f35): "EmptyArrayList",
("read_only_space", 0x03f41): "EmptyScopeInfo",
("read_only_space", 0x03f51): "EmptyObjectBoilerplateDescription",
("read_only_space", 0x03f5d): "EmptyArrayBoilerplateDescription",
("read_only_space", 0x03f69): "TrueValue",
("read_only_space", 0x03f85): "FalseValue",
("read_only_space", 0x03fa1): "EmptyByteArray",
("read_only_space", 0x03fa9): "EmptyPropertyArray",
("read_only_space", 0x03fb1): "EmptyClosureFeedbackCellArray",
("read_only_space", 0x03fb9): "NoOpInterceptorInfo",
("read_only_space", 0x03fe1): "MinusZeroValue",
("read_only_space", 0x03fed): "NanValue",
("read_only_space", 0x03ff9): "HoleNanValue",
("read_only_space", 0x04005): "InfinityValue",
("read_only_space", 0x04011): "MinusInfinityValue",
("read_only_space", 0x0401d): "MaxSafeInteger",
("read_only_space", 0x04029): "MaxUInt32",
("read_only_space", 0x04035): "SmiMinValue",
("read_only_space", 0x04041): "SmiMaxValuePlusOne",
("read_only_space", 0x0404d): "HashSeed",
("read_only_space", 0x0405d): "SingleCharacterStringTable",
("read_only_space", 0x05465): "empty_string",
("read_only_space", 0x07b5d): "UninitializedValue",
("read_only_space", 0x07b95): "ArgumentsMarker",
("read_only_space", 0x07bcd): "TerminationException",
("read_only_space", 0x07c0d): "Exception",
("read_only_space", 0x07c29): "OptimizedOut",
("read_only_space", 0x07c61): "StaleRegister",
("read_only_space", 0x07c99): "SelfReferenceMarker",
("read_only_space", 0x07cd9): "BasicBlockCountersMarker",
("read_only_space", 0x081f1): "EmptyPropertyDictionary",
("read_only_space", 0x08219): "EmptySymbolTable",
("read_only_space", 0x08235): "EmptySlowElementDictionary",
("read_only_space", 0x08259): "EmptyOrderedHashMap",
("read_only_space", 0x0826d): "EmptyOrderedHashSet",
("read_only_space", 0x08281): "EmptyOrderedPropertyDictionary",
("read_only_space", 0x082a5): "EmptySwissPropertyDictionary",
("read_only_space", 0x082c5): "EmptyFeedbackMetadata",
("read_only_space", 0x082d1): "GlobalThisBindingScopeInfo",
("read_only_space", 0x082f1): "EmptyFunctionScopeInfo",
("read_only_space", 0x08315): "NativeScopeInfo",
("read_only_space", 0x0832d): "ShadowRealmScopeInfo",
("read_only_space", 0x0fffd): "WasmNull",
("old_space", 0x0426d): "ArgumentsIteratorAccessor",
("old_space", 0x04285): "ArrayLengthAccessor",
("old_space", 0x0429d): "BoundFunctionLengthAccessor",
("old_space", 0x042b5): "BoundFunctionNameAccessor",
("old_space", 0x042cd): "ErrorStackAccessor",
("old_space", 0x042e5): "FunctionArgumentsAccessor",
("old_space", 0x042fd): "FunctionCallerAccessor",
("old_space", 0x04315): "FunctionNameAccessor",
("old_space", 0x0432d): "FunctionLengthAccessor",
("old_space", 0x04345): "FunctionPrototypeAccessor",
("old_space", 0x0435d): "StringLengthAccessor",
("old_space", 0x04375): "ValueUnavailableAccessor",
("old_space", 0x0438d): "WrappedFunctionLengthAccessor",
("old_space", 0x043a5): "WrappedFunctionNameAccessor",
("old_space", 0x043bd): "ExternalMap",
("old_space", 0x043e5): "JSMessageObjectMap",
("old_space", 0x0440d): "EmptyScript",
("old_space", 0x04455): "ManyClosuresCell",
("old_space", 0x04461): "ArrayConstructorProtector",
("old_space", 0x04475): "NoElementsProtector",
("old_space", 0x04489): "MegaDOMProtector",
("old_space", 0x0449d): "IsConcatSpreadableProtector",
("old_space", 0x044b1): "ArraySpeciesProtector",
("old_space", 0x044c5): "TypedArraySpeciesProtector",
("old_space", 0x044d9): "PromiseSpeciesProtector",
("old_space", 0x044ed): "RegExpSpeciesProtector",
("old_space", 0x04501): "StringLengthProtector",
("old_space", 0x04515): "ArrayIteratorProtector",
("old_space", 0x04529): "ArrayBufferDetachingProtector",
("old_space", 0x0453d): "PromiseHookProtector",
("old_space", 0x04551): "PromiseResolveProtector",
("old_space", 0x04565): "MapIteratorProtector",
("old_space", 0x04579): "PromiseThenProtector",
("old_space", 0x0458d): "SetIteratorProtector",
("old_space", 0x045a1): "StringIteratorProtector",
("old_space", 0x045b5): "NumberStringPrototypeNoReplaceProtector",
("old_space", 0x045c9): "StringSplitCache",
("old_space", 0x049d1): "RegExpMultipleCache",
("old_space", 0x04dd9): "BuiltinsConstantsTable",
("old_space", 0x053a9): "AsyncFunctionAwaitRejectSharedFun",
("old_space", 0x053cd): "AsyncFunctionAwaitResolveSharedFun",
("old_space", 0x053f1): "AsyncGeneratorAwaitRejectSharedFun",
("old_space", 0x05415): "AsyncGeneratorAwaitResolveSharedFun",
("old_space", 0x05439): "AsyncGeneratorYieldWithAwaitResolveSharedFun",
("old_space", 0x0545d): "AsyncGeneratorReturnResolveSharedFun",
("old_space", 0x05481): "AsyncGeneratorReturnClosedRejectSharedFun",
("old_space", 0x054a5): "AsyncGeneratorReturnClosedResolveSharedFun",
("old_space", 0x054c9): "AsyncIteratorValueUnwrapSharedFun",
("old_space", 0x054ed): "PromiseAllResolveElementSharedFun",
("old_space", 0x05511): "PromiseAllSettledResolveElementSharedFun",
("old_space", 0x05535): "PromiseAllSettledRejectElementSharedFun",
("old_space", 0x05559): "PromiseAnyRejectElementSharedFun",
("old_space", 0x0557d): "PromiseCapabilityDefaultRejectSharedFun",
("old_space", 0x055a1): "PromiseCapabilityDefaultResolveSharedFun",
("old_space", 0x055c5): "PromiseCatchFinallySharedFun",
("old_space", 0x055e9): "PromiseGetCapabilitiesExecutorSharedFun",
("old_space", 0x0560d): "PromiseThenFinallySharedFun",
("old_space", 0x05631): "PromiseThrowerFinallySharedFun",
("old_space", 0x05655): "PromiseValueThunkFinallySharedFun",
("old_space", 0x05679): "ProxyRevokeSharedFun",
("old_space", 0x0569d): "ShadowRealmImportValueFulfilledSFI",
("old_space", 0x056c1): "SourceTextModuleExecuteAsyncModuleFulfilledSFI",
("old_space", 0x056e5): "SourceTextModuleExecuteAsyncModuleRejectedSFI",
}
# Lower 32 bits of first page addresses for various heap spaces.
HEAP_FIRST_PAGES = {
0x000c0000: "old_space",
0x00000000: "read_only_space",
}
# List of known V8 Frame Markers.
FRAME_MARKERS = (
"ENTRY",
"CONSTRUCT_ENTRY",
"EXIT",
"WASM",
"WASM_TO_JS",
"WASM_TO_JS_FUNCTION",
"JS_TO_WASM",
"STACK_SWITCH",
"WASM_DEBUG_BREAK",
"C_WASM_ENTRY",
"WASM_EXIT",
"WASM_LIFTOFF_SETUP",
"INTERPRETED",
"BASELINE",
"MAGLEV",
"TURBOFAN",
"STUB",
"TURBOFAN_STUB_WITH_CONTEXT",
"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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