v8/tools/v8heapconst.py

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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",
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",
[inspector] Capture stack trace only once for JSError objects. When creating a new JSError object (or using the non-standard API `Error.captureStackTrace`) V8 would previously capture the "simple stack trace" (as FixedArray of CallSiteInfo instances) to be used for the non- standard `error.stack` property, and if the inspector was active also capture the "detailed stack trace" (as FixedArray of StackFrameInfo instances). This turns out to be quite a lot of overhead, both in terms of execution time as well as memory pressure, especially since the information needed for the inspector is a proper subset of the information needed by `error.stack`. So this CL addresses the above issue by capturing only the "simple stack trace" (in the common case) and computing the "detailed stack trace" from the "simple stack trace" when on demand. This is accomplished by introducing a new ErrorStackData container that is used to store the stack trace information on JSErrors when the inspector is active. When capturing stack trace for a JSError object while the inspector is active, we take the maximum of the program controlled stack trace limit and the inspector requested stack trace limit, and memorize the program controlled stack trace limit for later formatting (to ensure that the presence of the inspector is not observable by the program). On the `standalone.js` benchmark from crbug.com/1283162 (with the default max call stack size of 200) we reduce execution time by around 16% compared to ToT. And compared to V8 9.9.4 (the version prior to the regression in crbug.com/1280831), we are 6% faster now. Doc: https://bit.ly/v8-cheaper-inspector-stack-traces Bug: chromium:1280831, chromium:1278650, chromium:1258599 Bug: chromium:1280803, chromium:1280832, chromium:1280818 Fixed: chromium:1283162 Change-Id: I57dac73e0ecf7d50ea57c3eb4981067deb28133e Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3366660 Reviewed-by: Leszek Swirski <leszeks@chromium.org> Reviewed-by: Yang Guo <yangguo@chromium.org> Commit-Queue: Benedikt Meurer <bmeurer@chromium.org> Cr-Commit-Position: refs/heads/main@{#78542}
2022-01-10 06:53:37 +00:00
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",
[wasm] Internal representation for function references Design doc: bit.ly/3jEVgzz We separate the internal representation of function references in Wasm from their JSFunction-based (external) representation. This improves performance of call_ref by requiring less indirections to load the context and call target from a function reference. In the boundary between wasm and JS/the C API, we add transformations between the two representations. Detailed changes: - Introduce WasmInternalFunction, containing fields required by call_ref, as well as a reference to the corresponding WasmExternalFunction. Add a reference to the WasmInternalFunction in WasmFunctionData. The {WasmInternalFunction::FromExternal} helper extracts the internal out of an external function. - Change {WasmInstanceObject::external_functions()} to internal functions. - Change wasm function tables to contain internal functions. - Change the following code to use internal functions: - call_ref in liftoff and Turbofan - function type checks in liftoff and Turbofan - CallRefIC and GenericJSToWasmWrapper builtins - {InitExprInterface::RefFunc} - module-compiler.cc in {ProcessTypeFeedback} - In module-instantiate.cc, in function-rtt creation. - Add transformations between internal and external functions in: - WasmWrapperGraphBuilder::{ToJS, BuildUnpackObjectWrapper, FromJS, BuildJSToJSWrapper}. - debug-wasm-objects.cc in {FunctionProxy::Get}, {WasmValueObject::New} and {AddWasmTableObjectInternalProperties}. - runtime-wasm.cc in ReplaceWrapper - the C and JS APIs - module-instantiate.cc, in import and export processing, as well as {InitializeIndirectFunctionTables} - WasmTableObject::{IsValidElement, SetFunctionTableEntry} - {WasmGlobalObject::SetFuncRef} - Simplify body descriptors of WasmExternalFunction variants. - Adjust tests. Bug: v8:11510 Change-Id: I8377f46f55c3771391ae1c5c8201a83854ee7878 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3277878 Reviewed-by: Michael Lippautz <mlippautz@chromium.org> Reviewed-by: Jakob Gruber <jgruber@chromium.org> Reviewed-by: Jakob Kummerow <jkummerow@chromium.org> Commit-Queue: Manos Koukoutos <manoskouk@chromium.org> Cr-Commit-Position: refs/heads/main@{#78068}
2021-11-23 14:31:18 +00:00
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",
[inspector] Capture stack trace only once for JSError objects. When creating a new JSError object (or using the non-standard API `Error.captureStackTrace`) V8 would previously capture the "simple stack trace" (as FixedArray of CallSiteInfo instances) to be used for the non- standard `error.stack` property, and if the inspector was active also capture the "detailed stack trace" (as FixedArray of StackFrameInfo instances). This turns out to be quite a lot of overhead, both in terms of execution time as well as memory pressure, especially since the information needed for the inspector is a proper subset of the information needed by `error.stack`. So this CL addresses the above issue by capturing only the "simple stack trace" (in the common case) and computing the "detailed stack trace" from the "simple stack trace" when on demand. This is accomplished by introducing a new ErrorStackData container that is used to store the stack trace information on JSErrors when the inspector is active. When capturing stack trace for a JSError object while the inspector is active, we take the maximum of the program controlled stack trace limit and the inspector requested stack trace limit, and memorize the program controlled stack trace limit for later formatting (to ensure that the presence of the inspector is not observable by the program). On the `standalone.js` benchmark from crbug.com/1283162 (with the default max call stack size of 200) we reduce execution time by around 16% compared to ToT. And compared to V8 9.9.4 (the version prior to the regression in crbug.com/1280831), we are 6% faster now. Doc: https://bit.ly/v8-cheaper-inspector-stack-traces Bug: chromium:1280831, chromium:1278650, chromium:1258599 Bug: chromium:1280803, chromium:1280832, chromium:1280818 Fixed: chromium:1283162 Change-Id: I57dac73e0ecf7d50ea57c3eb4981067deb28133e Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3366660 Reviewed-by: Leszek Swirski <leszeks@chromium.org> Reviewed-by: Yang Guo <yangguo@chromium.org> Commit-Queue: Benedikt Meurer <bmeurer@chromium.org> Cr-Commit-Position: refs/heads/main@{#78542}
2022-01-10 06:53:37 +00:00
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",
[torque] Generate instance types Design doc: https://docs.google.com/document/d/1ZU6rCvF2YHBGMLujWqqaxlPsjFfjKDE9C3-EugfdlAE/edit Changes from the design doc: - Changed to use 'class' declarations rather than 'type' declarations for things that need instance types but whose layout is not known to Torque. These declarations end with a semicolon rather than having a full set of methods and fields surrounded by {}. If the class's name should not be treated as a class name in generated output (because it's actually a template, or doesn't exist at all), we use the standard 'generates' clause to declare the most appropriate C++ class. - Removed @instanceTypeName. - @highestInstanceType became @highestInstanceTypeWithinParentClassRange to indicate a semantic change: it no longer denotes the highest instance type globally, but only within the range of values for its immediate parent class. This lets us use it for Oddball, which is expected to be the highest primitive type. - Added new abstract classes JSCustomElementsObject and JSSpecialObject to help with some range checks. - Added @lowestInstanceTypeWithinParentClassRange so we can move the new classes JSCustomElementsObject and JSSpecialObject to the beginning of the JSObject range. This seems like the least-brittle way to establish ranges that also include JSProxy (and these ranges are verified with static assertions in instance-type.h). - Renamed @instanceTypeValue to @apiExposedInstanceTypeValue. - Renamed @instanceTypeFlags to @reserveBitsInInstanceType. This change introduces the new annotations and adds the ability for Torque to assign instance types that satisfy those annotations. Torque now emits two new macros: - TORQUE_ASSIGNED_INSTANCE_TYPES, which is used to define the InstanceType enumeration - TORQUE_ASSIGNED_INSTANCE_TYPE_LIST, which replaces the non-String parts of INSTANCE_TYPE_LIST The design document mentions a couple of other macro lists that could easily be replaced, but I'd like to defer those to a subsequent checkin because this one is already pretty large. Bug: v8:7793 Change-Id: Ie71d93a9d5b610e62be0ffa3bb36180c3357a6e8 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1757094 Commit-Queue: Seth Brenith <seth.brenith@microsoft.com> Reviewed-by: Tobias Tebbi <tebbi@chromium.org> Reviewed-by: Jakob Gruber <jgruber@chromium.org> Reviewed-by: Sathya Gunasekaran <gsathya@chromium.org> Cr-Commit-Position: refs/heads/master@{#64258}
2019-10-11 21:52:06 +00:00
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): (131, "SelfReferenceMarkerMap"),
("read_only_space", 0x033b1): (131, "BasicBlockCountersMarkerMap"),
("read_only_space", 0x033f5): (147, "ArrayBoilerplateDescriptionMap"),
("read_only_space", 0x034f5): (161, "InterceptorInfoMap"),
("read_only_space", 0x05fc5): (132, "PromiseFulfillReactionJobTaskMap"),
("read_only_space", 0x05fed): (133, "PromiseRejectReactionJobTaskMap"),
("read_only_space", 0x06015): (134, "CallableTaskMap"),
("read_only_space", 0x0603d): (135, "CallbackTaskMap"),
("read_only_space", 0x06065): (136, "PromiseResolveThenableJobTaskMap"),
("read_only_space", 0x0608d): (139, "FunctionTemplateInfoMap"),
("read_only_space", 0x060b5): (140, "ObjectTemplateInfoMap"),
("read_only_space", 0x060dd): (141, "AccessCheckInfoMap"),
("read_only_space", 0x06105): (142, "AccessorInfoMap"),
("read_only_space", 0x0612d): (143, "AccessorPairMap"),
("read_only_space", 0x06155): (144, "AliasedArgumentsEntryMap"),
("read_only_space", 0x0617d): (145, "AllocationMementoMap"),
("read_only_space", 0x061a5): (148, "AsmWasmDataMap"),
("read_only_space", 0x061cd): (149, "AsyncGeneratorRequestMap"),
("read_only_space", 0x061f5): (150, "BreakPointMap"),
("read_only_space", 0x0621d): (151, "BreakPointInfoMap"),
("read_only_space", 0x06245): (152, "CachedTemplateObjectMap"),
("read_only_space", 0x0626d): (154, "CallSiteInfoMap"),
("read_only_space", 0x06295): (155, "ClassPositionsMap"),
("read_only_space", 0x062bd): (156, "DebugInfoMap"),
("read_only_space", 0x062e5): (158, "ErrorStackDataMap"),
("read_only_space", 0x0630d): (160, "FunctionTemplateRareDataMap"),
("read_only_space", 0x06335): (162, "InterpreterDataMap"),
("read_only_space", 0x0635d): (163, "ModuleRequestMap"),
("read_only_space", 0x06385): (164, "PromiseCapabilityMap"),
("read_only_space", 0x063ad): (165, "PromiseOnStackMap"),
("read_only_space", 0x063d5): (166, "PromiseReactionMap"),
("read_only_space", 0x063fd): (167, "PropertyDescriptorObjectMap"),
("read_only_space", 0x06425): (168, "PrototypeInfoMap"),
("read_only_space", 0x0644d): (169, "RegExpBoilerplateDescriptionMap"),
("read_only_space", 0x06475): (170, "ScriptMap"),
("read_only_space", 0x0649d): (171, "ScriptOrModuleMap"),
("read_only_space", 0x064c5): (172, "SourceTextModuleInfoEntryMap"),
("read_only_space", 0x064ed): (173, "StackFrameInfoMap"),
("read_only_space", 0x06515): (174, "TemplateObjectDescriptionMap"),
("read_only_space", 0x0653d): (175, "Tuple2Map"),
("read_only_space", 0x06565): (176, "WasmContinuationObjectMap"),
("read_only_space", 0x0658d): (177, "WasmExceptionTagMap"),
("read_only_space", 0x065b5): (178, "WasmIndirectFunctionTableMap"),
("read_only_space", 0x065dd): (198, "SloppyArgumentsElementsMap"),
("read_only_space", 0x06605): (233, "DescriptorArrayMap"),
("read_only_space", 0x0662d): (219, "UncompiledDataWithoutPreparseDataMap"),
("read_only_space", 0x06655): (217, "UncompiledDataWithPreparseDataMap"),
("read_only_space", 0x0667d): (220, "UncompiledDataWithoutPreparseDataWithJobMap"),
("read_only_space", 0x066a5): (218, "UncompiledDataWithPreparseDataAndJobMap"),
("read_only_space", 0x066cd): (252, "OnHeapBasicBlockProfilerDataMap"),
("read_only_space", 0x066f5): (199, "TurbofanBitsetTypeMap"),
("read_only_space", 0x0671d): (203, "TurbofanUnionTypeMap"),
("read_only_space", 0x06745): (202, "TurbofanRangeTypeMap"),
("read_only_space", 0x0676d): (200, "TurbofanHeapConstantTypeMap"),
("read_only_space", 0x06795): (201, "TurbofanOtherNumberConstantTypeMap"),
("read_only_space", 0x067bd): (248, "InternalClassMap"),
("read_only_space", 0x067e5): (259, "SmiPairMap"),
("read_only_space", 0x0680d): (258, "SmiBoxMap"),
("read_only_space", 0x06835): (225, "ExportedSubClassBaseMap"),
("read_only_space", 0x0685d): (226, "ExportedSubClassMap"),
("read_only_space", 0x06885): (231, "AbstractInternalClassSubclass1Map"),
("read_only_space", 0x068ad): (232, "AbstractInternalClassSubclass2Map"),
("read_only_space", 0x068d5): (197, "InternalClassWithSmiElementsMap"),
("read_only_space", 0x068fd): (249, "InternalClassWithStructElementsMap"),
("read_only_space", 0x06925): (227, "ExportedSubClass2Map"),
("read_only_space", 0x0694d): (260, "SortStateMap"),
("read_only_space", 0x06975): (146, "AllocationSiteWithWeakNextMap"),
("read_only_space", 0x0699d): (146, "AllocationSiteWithoutWeakNextMap"),
("read_only_space", 0x069c5): (137, "LoadHandler1Map"),
("read_only_space", 0x069ed): (137, "LoadHandler2Map"),
("read_only_space", 0x06a15): (137, "LoadHandler3Map"),
("read_only_space", 0x06a3d): (138, "StoreHandler0Map"),
("read_only_space", 0x06a65): (138, "StoreHandler1Map"),
("read_only_space", 0x06a8d): (138, "StoreHandler2Map"),
("read_only_space", 0x06ab5): (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", 0x033d9): "EmptyPropertyArray",
("read_only_space", 0x033e1): "EmptyByteArray",
("read_only_space", 0x033e9): "EmptyObjectBoilerplateDescription",
("read_only_space", 0x0341d): "EmptyArrayBoilerplateDescription",
("read_only_space", 0x03429): "EmptyClosureFeedbackCellArray",
("read_only_space", 0x03431): "EmptySlowElementDictionary",
("read_only_space", 0x03455): "EmptyOrderedHashMap",
("read_only_space", 0x03469): "EmptyOrderedHashSet",
("read_only_space", 0x0347d): "EmptyFeedbackMetadata",
("read_only_space", 0x03489): "EmptyPropertyDictionary",
("read_only_space", 0x034b1): "EmptyOrderedPropertyDictionary",
("read_only_space", 0x034c9): "EmptySwissPropertyDictionary",
("read_only_space", 0x0351d): "NoOpInterceptorInfo",
("read_only_space", 0x03545): "EmptyArrayList",
("read_only_space", 0x03551): "EmptyWeakFixedArray",
("read_only_space", 0x03559): "InfinityValue",
("read_only_space", 0x03565): "MinusZeroValue",
("read_only_space", 0x03571): "MinusInfinityValue",
("read_only_space", 0x0357d): "SelfReferenceMarker",
("read_only_space", 0x035bd): "BasicBlockCountersMarker",
("read_only_space", 0x03601): "OffHeapTrampolineRelocationInfo",
("read_only_space", 0x0360d): "GlobalThisBindingScopeInfo",
("read_only_space", 0x0363d): "EmptyFunctionScopeInfo",
("read_only_space", 0x03661): "NativeScopeInfo",
("read_only_space", 0x03679): "HashSeed",
("old_space", 0x04241): "ArgumentsIteratorAccessor",
("old_space", 0x04285): "ArrayLengthAccessor",
("old_space", 0x042c9): "BoundFunctionLengthAccessor",
("old_space", 0x0430d): "BoundFunctionNameAccessor",
("old_space", 0x04351): "ErrorStackAccessor",
("old_space", 0x04395): "FunctionArgumentsAccessor",
("old_space", 0x043d9): "FunctionCallerAccessor",
("old_space", 0x0441d): "FunctionNameAccessor",
("old_space", 0x04461): "FunctionLengthAccessor",
("old_space", 0x044a5): "FunctionPrototypeAccessor",
("old_space", 0x044e9): "StringLengthAccessor",
("old_space", 0x0452d): "WrappedFunctionLengthAccessor",
("old_space", 0x04571): "WrappedFunctionNameAccessor",
("old_space", 0x045b5): "InvalidPrototypeValidityCell",
("old_space", 0x045bd): "EmptyScript",
("old_space", 0x04601): "ManyClosuresCell",
("old_space", 0x0460d): "ArrayConstructorProtector",
("old_space", 0x04621): "NoElementsProtector",
("old_space", 0x04635): "MegaDOMProtector",
("old_space", 0x04649): "IsConcatSpreadableProtector",
("old_space", 0x0465d): "ArraySpeciesProtector",
("old_space", 0x04671): "TypedArraySpeciesProtector",
("old_space", 0x04685): "PromiseSpeciesProtector",
("old_space", 0x04699): "RegExpSpeciesProtector",
("old_space", 0x046ad): "StringLengthProtector",
("old_space", 0x046c1): "ArrayIteratorProtector",
("old_space", 0x046d5): "ArrayBufferDetachingProtector",
("old_space", 0x046e9): "PromiseHookProtector",
("old_space", 0x046fd): "PromiseResolveProtector",
("old_space", 0x04711): "MapIteratorProtector",
("old_space", 0x04725): "PromiseThenProtector",
("old_space", 0x04739): "SetIteratorProtector",
("old_space", 0x0474d): "StringIteratorProtector",
("old_space", 0x04761): "SingleCharacterStringCache",
("old_space", 0x04b69): "StringSplitCache",
("old_space", 0x04f71): "RegExpMultipleCache",
("old_space", 0x05379): "BuiltinsConstantsTable",
("old_space", 0x057ad): "AsyncFunctionAwaitRejectSharedFun",
("old_space", 0x057d1): "AsyncFunctionAwaitResolveSharedFun",
("old_space", 0x057f5): "AsyncGeneratorAwaitRejectSharedFun",
("old_space", 0x05819): "AsyncGeneratorAwaitResolveSharedFun",
("old_space", 0x0583d): "AsyncGeneratorYieldResolveSharedFun",
("old_space", 0x05861): "AsyncGeneratorReturnResolveSharedFun",
("old_space", 0x05885): "AsyncGeneratorReturnClosedRejectSharedFun",
("old_space", 0x058a9): "AsyncGeneratorReturnClosedResolveSharedFun",
("old_space", 0x058cd): "AsyncIteratorValueUnwrapSharedFun",
("old_space", 0x058f1): "PromiseAllResolveElementSharedFun",
("old_space", 0x05915): "PromiseAllSettledResolveElementSharedFun",
("old_space", 0x05939): "PromiseAllSettledRejectElementSharedFun",
("old_space", 0x0595d): "PromiseAnyRejectElementSharedFun",
("old_space", 0x05981): "PromiseCapabilityDefaultRejectSharedFun",
("old_space", 0x059a5): "PromiseCapabilityDefaultResolveSharedFun",
("old_space", 0x059c9): "PromiseCatchFinallySharedFun",
("old_space", 0x059ed): "PromiseGetCapabilitiesExecutorSharedFun",
("old_space", 0x05a11): "PromiseThenFinallySharedFun",
("old_space", 0x05a35): "PromiseThrowerFinallySharedFun",
("old_space", 0x05a59): "PromiseValueThunkFinallySharedFun",
("old_space", 0x05a7d): "ProxyRevokeSharedFun",
("old_space", 0x05aa1): "ShadowRealmImportValueFulfilledSFI",
("old_space", 0x05ac5): "SourceTextModuleExecuteAsyncModuleFulfilledSFI",
("old_space", 0x05ae9): "SourceTextModuleExecuteAsyncModuleRejectedSFI",
}
# 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.