AuroraMiddleware/v8
1
0
Fork 0
Code Issues 2 Pull Requests Releases Wiki Activity
0391a8c5ae
v8/tools/v8heapconst.py
Benedikt Meurer db0556b7e8 [builtins] Widen the fast-path for Promise builtins. 
This adds a new isolate wide Promise#then protector, which guards the
"then" lookup for all JSPromise instances whose [[Prototype]] is the
initial %PromisePrototype%. Thus arbitrary mutations to the
Promise.prototype (i.e. monkey-patching other methods or installing
new functions) no longer sent you down the slow-path. Use this protector
in Promise.prototype.catch and in Promise.resolve.

Drive-by-fix: Restructure the resolve logic a bit and avoid the
expensive and large SameValue check, which can be turned into a simple
reference equal, as the promise in there is known to be a JSPromise
anyways.

Bug: v8:7253
Change-Id: If68b12c6bc6ca9c4d10552ae84854ebc3b5774f9
Reviewed-on: https://chromium-review.googlesource.com/899302
Commit-Queue: Benedikt Meurer <bmeurer@chromium.org>
Reviewed-by: Benedikt Meurer <bmeurer@chromium.org>
Reviewed-by: Sathya Gunasekaran <gsathya@chromium.org>
Reviewed-by: Ulan Degenbaev <ulan@chromium.org>
Cr-Commit-Position: refs/heads/master@{#51085}
2018-02-04 08:58:02 +00:00

370 lines
13 KiB
Python
Raw Blame History

# Copyright 2017 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.
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: "EXTERNAL_INTERNALIZED_STRING_WITH_ONE_BYTE_DATA_TYPE",
34: "SHORT_EXTERNAL_INTERNALIZED_STRING_TYPE",
42: "SHORT_EXTERNAL_ONE_BYTE_INTERNALIZED_STRING_TYPE",
50: "SHORT_EXTERNAL_INTERNALIZED_STRING_WITH_ONE_BYTE_DATA_TYPE",
64: "STRING_TYPE",
65: "CONS_STRING_TYPE",
66: "EXTERNAL_STRING_TYPE",
67: "SLICED_STRING_TYPE",
69: "THIN_STRING_TYPE",
72: "ONE_BYTE_STRING_TYPE",
73: "CONS_ONE_BYTE_STRING_TYPE",
74: "EXTERNAL_ONE_BYTE_STRING_TYPE",
75: "SLICED_ONE_BYTE_STRING_TYPE",
77: "THIN_ONE_BYTE_STRING_TYPE",
82: "EXTERNAL_STRING_WITH_ONE_BYTE_DATA_TYPE",
98: "SHORT_EXTERNAL_STRING_TYPE",
106: "SHORT_EXTERNAL_ONE_BYTE_STRING_TYPE",
114: "SHORT_EXTERNAL_STRING_WITH_ONE_BYTE_DATA_TYPE",
128: "SYMBOL_TYPE",
129: "HEAP_NUMBER_TYPE",
130: "BIGINT_TYPE",
131: "ODDBALL_TYPE",
132: "MAP_TYPE",
133: "CODE_TYPE",
134: "MUTABLE_HEAP_NUMBER_TYPE",
135: "FOREIGN_TYPE",
136: "BYTE_ARRAY_TYPE",
137: "BYTECODE_ARRAY_TYPE",
138: "FREE_SPACE_TYPE",
139: "FIXED_INT8_ARRAY_TYPE",
140: "FIXED_UINT8_ARRAY_TYPE",
141: "FIXED_INT16_ARRAY_TYPE",
142: "FIXED_UINT16_ARRAY_TYPE",
143: "FIXED_INT32_ARRAY_TYPE",
144: "FIXED_UINT32_ARRAY_TYPE",
145: "FIXED_FLOAT32_ARRAY_TYPE",
146: "FIXED_FLOAT64_ARRAY_TYPE",
147: "FIXED_UINT8_CLAMPED_ARRAY_TYPE",
148: "FIXED_DOUBLE_ARRAY_TYPE",
149: "FILLER_TYPE",
150: "ACCESS_CHECK_INFO_TYPE",
151: "ACCESSOR_INFO_TYPE",
152: "ACCESSOR_PAIR_TYPE",
153: "ALIASED_ARGUMENTS_ENTRY_TYPE",
154: "ALLOCATION_MEMENTO_TYPE",
155: "ALLOCATION_SITE_TYPE",
156: "ASYNC_GENERATOR_REQUEST_TYPE",
157: "CONTEXT_EXTENSION_TYPE",
158: "DEBUG_INFO_TYPE",
159: "FUNCTION_TEMPLATE_INFO_TYPE",
160: "INTERCEPTOR_INFO_TYPE",
161: "MODULE_INFO_ENTRY_TYPE",
162: "MODULE_TYPE",
163: "OBJECT_TEMPLATE_INFO_TYPE",
164: "PROMISE_CAPABILITY_TYPE",
165: "PROMISE_REACTION_TYPE",
166: "PROTOTYPE_INFO_TYPE",
167: "SCRIPT_TYPE",
168: "STACK_FRAME_INFO_TYPE",
169: "TUPLE2_TYPE",
170: "TUPLE3_TYPE",
171: "CALLABLE_TASK_TYPE",
172: "CALLBACK_TASK_TYPE",
173: "PROMISE_FULFILL_REACTION_JOB_TASK_TYPE",
174: "PROMISE_REJECT_REACTION_JOB_TASK_TYPE",
175: "PROMISE_RESOLVE_THENABLE_JOB_TASK_TYPE",
176: "FIXED_ARRAY_TYPE",
177: "DESCRIPTOR_ARRAY_TYPE",
178: "HASH_TABLE_TYPE",
179: "TRANSITION_ARRAY_TYPE",
180: "CELL_TYPE",
181: "CODE_DATA_CONTAINER_TYPE",
182: "FEEDBACK_VECTOR_TYPE",
183: "LOAD_HANDLER_TYPE",
184: "PROPERTY_ARRAY_TYPE",
185: "PROPERTY_CELL_TYPE",
186: "SHARED_FUNCTION_INFO_TYPE",
187: "SMALL_ORDERED_HASH_MAP_TYPE",
188: "SMALL_ORDERED_HASH_SET_TYPE",
189: "STORE_HANDLER_TYPE",
190: "WEAK_CELL_TYPE",
1024: "JS_PROXY_TYPE",
1025: "JS_GLOBAL_OBJECT_TYPE",
1026: "JS_GLOBAL_PROXY_TYPE",
1027: "JS_MODULE_NAMESPACE_TYPE",
1040: "JS_SPECIAL_API_OBJECT_TYPE",
1041: "JS_VALUE_TYPE",
1056: "JS_API_OBJECT_TYPE",
1057: "JS_OBJECT_TYPE",
1058: "JS_ARGUMENTS_TYPE",
1059: "JS_ARRAY_BUFFER_TYPE",
1060: "JS_ARRAY_TYPE",
1061: "JS_ASYNC_FROM_SYNC_ITERATOR_TYPE",
1062: "JS_ASYNC_GENERATOR_OBJECT_TYPE",
1063: "JS_CONTEXT_EXTENSION_OBJECT_TYPE",
1064: "JS_DATE_TYPE",
1065: "JS_ERROR_TYPE",
1066: "JS_GENERATOR_OBJECT_TYPE",
1067: "JS_MAP_TYPE",
1068: "JS_MAP_KEY_ITERATOR_TYPE",
1069: "JS_MAP_KEY_VALUE_ITERATOR_TYPE",
1070: "JS_MAP_VALUE_ITERATOR_TYPE",
1071: "JS_MESSAGE_OBJECT_TYPE",
1072: "JS_PROMISE_TYPE",
1073: "JS_REGEXP_TYPE",
1074: "JS_SET_TYPE",
1075: "JS_SET_KEY_VALUE_ITERATOR_TYPE",
1076: "JS_SET_VALUE_ITERATOR_TYPE",
1077: "JS_STRING_ITERATOR_TYPE",
1078: "JS_WEAK_MAP_TYPE",
1079: "JS_WEAK_SET_TYPE",
1080: "JS_TYPED_ARRAY_TYPE",
1081: "JS_DATA_VIEW_TYPE",
1082: "JS_TYPED_ARRAY_KEY_ITERATOR_TYPE",
1083: "JS_FAST_ARRAY_KEY_ITERATOR_TYPE",
1084: "JS_GENERIC_ARRAY_KEY_ITERATOR_TYPE",
1085: "JS_UINT8_ARRAY_KEY_VALUE_ITERATOR_TYPE",
1086: "JS_INT8_ARRAY_KEY_VALUE_ITERATOR_TYPE",
1087: "JS_UINT16_ARRAY_KEY_VALUE_ITERATOR_TYPE",
1088: "JS_INT16_ARRAY_KEY_VALUE_ITERATOR_TYPE",
1089: "JS_UINT32_ARRAY_KEY_VALUE_ITERATOR_TYPE",
1090: "JS_INT32_ARRAY_KEY_VALUE_ITERATOR_TYPE",
1091: "JS_FLOAT32_ARRAY_KEY_VALUE_ITERATOR_TYPE",
1092: "JS_FLOAT64_ARRAY_KEY_VALUE_ITERATOR_TYPE",
1093: "JS_UINT8_CLAMPED_ARRAY_KEY_VALUE_ITERATOR_TYPE",
1094: "JS_FAST_SMI_ARRAY_KEY_VALUE_ITERATOR_TYPE",
1095: "JS_FAST_HOLEY_SMI_ARRAY_KEY_VALUE_ITERATOR_TYPE",
1096: "JS_FAST_ARRAY_KEY_VALUE_ITERATOR_TYPE",
1097: "JS_FAST_HOLEY_ARRAY_KEY_VALUE_ITERATOR_TYPE",
1098: "JS_FAST_DOUBLE_ARRAY_KEY_VALUE_ITERATOR_TYPE",
1099: "JS_FAST_HOLEY_DOUBLE_ARRAY_KEY_VALUE_ITERATOR_TYPE",
1100: "JS_GENERIC_ARRAY_KEY_VALUE_ITERATOR_TYPE",
1101: "JS_UINT8_ARRAY_VALUE_ITERATOR_TYPE",
1102: "JS_INT8_ARRAY_VALUE_ITERATOR_TYPE",
1103: "JS_UINT16_ARRAY_VALUE_ITERATOR_TYPE",
1104: "JS_INT16_ARRAY_VALUE_ITERATOR_TYPE",
1105: "JS_UINT32_ARRAY_VALUE_ITERATOR_TYPE",
1106: "JS_INT32_ARRAY_VALUE_ITERATOR_TYPE",
1107: "JS_FLOAT32_ARRAY_VALUE_ITERATOR_TYPE",
1108: "JS_FLOAT64_ARRAY_VALUE_ITERATOR_TYPE",
1109: "JS_UINT8_CLAMPED_ARRAY_VALUE_ITERATOR_TYPE",
1110: "JS_FAST_SMI_ARRAY_VALUE_ITERATOR_TYPE",
1111: "JS_FAST_HOLEY_SMI_ARRAY_VALUE_ITERATOR_TYPE",
1112: "JS_FAST_ARRAY_VALUE_ITERATOR_TYPE",
1113: "JS_FAST_HOLEY_ARRAY_VALUE_ITERATOR_TYPE",
1114: "JS_FAST_DOUBLE_ARRAY_VALUE_ITERATOR_TYPE",
1115: "JS_FAST_HOLEY_DOUBLE_ARRAY_VALUE_ITERATOR_TYPE",
1116: "JS_GENERIC_ARRAY_VALUE_ITERATOR_TYPE",
1117: "WASM_INSTANCE_TYPE",
1118: "WASM_MEMORY_TYPE",
1119: "WASM_MODULE_TYPE",
1120: "WASM_TABLE_TYPE",
1121: "JS_BOUND_FUNCTION_TYPE",
1122: "JS_FUNCTION_TYPE",
}
# List of known V8 maps.
KNOWN_MAPS = {
0x02201: (138, "FreeSpaceMap"),
0x02251: (132, "MetaMap"),
0x022a1: (131, "NullMap"),
0x022f1: (177, "DescriptorArrayMap"),
0x02341: (176, "FixedArrayMap"),
0x02391: (149, "OnePointerFillerMap"),
0x023e1: (149, "TwoPointerFillerMap"),
0x02431: (131, "UninitializedMap"),
0x02481: (8, "OneByteInternalizedStringMap"),
0x024d1: (131, "UndefinedMap"),
0x02521: (129, "HeapNumberMap"),
0x02571: (131, "TheHoleMap"),
0x025c1: (131, "BooleanMap"),
0x02611: (136, "ByteArrayMap"),
0x02661: (176, "FixedCOWArrayMap"),
0x026b1: (178, "HashTableMap"),
0x02701: (128, "SymbolMap"),
0x02751: (72, "OneByteStringMap"),
0x027a1: (176, "ScopeInfoMap"),
0x027f1: (186, "SharedFunctionInfoMap"),
0x02841: (133, "CodeMap"),
0x02891: (176, "FunctionContextMap"),
0x028e1: (180, "CellMap"),
0x02931: (190, "WeakCellMap"),
0x02981: (185, "GlobalPropertyCellMap"),
0x029d1: (135, "ForeignMap"),
0x02a21: (179, "TransitionArrayMap"),
0x02a71: (182, "FeedbackVectorMap"),
0x02ac1: (131, "ArgumentsMarkerMap"),
0x02b11: (131, "ExceptionMap"),
0x02b61: (131, "TerminationExceptionMap"),
0x02bb1: (131, "OptimizedOutMap"),
0x02c01: (131, "StaleRegisterMap"),
0x02c51: (176, "NativeContextMap"),
0x02ca1: (176, "ModuleContextMap"),
0x02cf1: (176, "EvalContextMap"),
0x02d41: (176, "ScriptContextMap"),
0x02d91: (176, "BlockContextMap"),
0x02de1: (176, "CatchContextMap"),
0x02e31: (176, "WithContextMap"),
0x02e81: (176, "DebugEvaluateContextMap"),
0x02ed1: (176, "ScriptContextTableMap"),
0x02f21: (176, "ArrayListMap"),
0x02f71: (148, "FixedDoubleArrayMap"),
0x02fc1: (134, "MutableHeapNumberMap"),
0x03011: (178, "OrderedHashMapMap"),
0x03061: (178, "OrderedHashSetMap"),
0x030b1: (178, "NameDictionaryMap"),
0x03101: (178, "GlobalDictionaryMap"),
0x03151: (178, "NumberDictionaryMap"),
0x031a1: (178, "SimpleNumberDictionaryMap"),
0x031f1: (178, "StringTableMap"),
0x03241: (178, "WeakHashTableMap"),
0x03291: (176, "SloppyArgumentsElementsMap"),
0x032e1: (187, "SmallOrderedHashMapMap"),
0x03331: (188, "SmallOrderedHashSetMap"),
0x03381: (181, "CodeDataContainerMap"),
0x033d1: (1071, "JSMessageObjectMap"),
0x03421: (1057, "ExternalMap"),
0x03471: (137, "BytecodeArrayMap"),
0x034c1: (176, "ModuleInfoMap"),
0x03511: (180, "NoClosuresCellMap"),
0x03561: (180, "OneClosureCellMap"),
0x035b1: (180, "ManyClosuresCellMap"),
0x03601: (184, "PropertyArrayMap"),
0x03651: (130, "BigIntMap"),
0x036a1: (106, "NativeSourceStringMap"),
0x036f1: (64, "StringMap"),
0x03741: (73, "ConsOneByteStringMap"),
0x03791: (65, "ConsStringMap"),
0x037e1: (77, "ThinOneByteStringMap"),
0x03831: (69, "ThinStringMap"),
0x03881: (67, "SlicedStringMap"),
0x038d1: (75, "SlicedOneByteStringMap"),
0x03921: (66, "ExternalStringMap"),
0x03971: (82, "ExternalStringWithOneByteDataMap"),
0x039c1: (74, "ExternalOneByteStringMap"),
0x03a11: (98, "ShortExternalStringMap"),
0x03a61: (114, "ShortExternalStringWithOneByteDataMap"),
0x03ab1: (0, "InternalizedStringMap"),
0x03b01: (2, "ExternalInternalizedStringMap"),
0x03b51: (18, "ExternalInternalizedStringWithOneByteDataMap"),
0x03ba1: (10, "ExternalOneByteInternalizedStringMap"),
0x03bf1: (34, "ShortExternalInternalizedStringMap"),
0x03c41: (50, "ShortExternalInternalizedStringWithOneByteDataMap"),
0x03c91: (42, "ShortExternalOneByteInternalizedStringMap"),
0x03ce1: (106, "ShortExternalOneByteStringMap"),
0x03d31: (140, "FixedUint8ArrayMap"),
0x03d81: (139, "FixedInt8ArrayMap"),
0x03dd1: (142, "FixedUint16ArrayMap"),
0x03e21: (141, "FixedInt16ArrayMap"),
0x03e71: (144, "FixedUint32ArrayMap"),
0x03ec1: (143, "FixedInt32ArrayMap"),
0x03f11: (145, "FixedFloat32ArrayMap"),
0x03f61: (146, "FixedFloat64ArrayMap"),
0x03fb1: (147, "FixedUint8ClampedArrayMap"),
0x04001: (169, "Tuple2Map"),
0x04051: (167, "ScriptMap"),
0x040a1: (160, "InterceptorInfoMap"),
0x040f1: (151, "AccessorInfoMap"),
0x04141: (150, "AccessCheckInfoMap"),
0x04191: (152, "AccessorPairMap"),
0x041e1: (153, "AliasedArgumentsEntryMap"),
0x04231: (154, "AllocationMementoMap"),
0x04281: (155, "AllocationSiteMap"),
0x042d1: (156, "AsyncGeneratorRequestMap"),
0x04321: (157, "ContextExtensionMap"),
0x04371: (158, "DebugInfoMap"),
0x043c1: (159, "FunctionTemplateInfoMap"),
0x04411: (161, "ModuleInfoEntryMap"),
0x04461: (162, "ModuleMap"),
0x044b1: (163, "ObjectTemplateInfoMap"),
0x04501: (164, "PromiseCapabilityMap"),
0x04551: (165, "PromiseReactionMap"),
0x045a1: (166, "PrototypeInfoMap"),
0x045f1: (168, "StackFrameInfoMap"),
0x04641: (170, "Tuple3Map"),
0x04691: (171, "CallableTaskMap"),
0x046e1: (172, "CallbackTaskMap"),
0x04731: (173, "PromiseFulfillReactionJobTaskMap"),
0x04781: (174, "PromiseRejectReactionJobTaskMap"),
0x047d1: (175, "PromiseResolveThenableJobTaskMap"),
}
# List of known V8 objects.
KNOWN_OBJECTS = {
("OLD_SPACE", 0x02201): "NullValue",
("OLD_SPACE", 0x02231): "EmptyDescriptorArray",
("OLD_SPACE", 0x02251): "EmptyFixedArray",
("OLD_SPACE", 0x02261): "UninitializedValue",
("OLD_SPACE", 0x022e1): "UndefinedValue",
("OLD_SPACE", 0x02311): "NanValue",
("OLD_SPACE", 0x02321): "TheHoleValue",
("OLD_SPACE", 0x02371): "HoleNanValue",
("OLD_SPACE", 0x02381): "TrueValue",
("OLD_SPACE", 0x023f1): "FalseValue",
("OLD_SPACE", 0x02441): "empty_string",
("OLD_SPACE", 0x02459): "EmptyScopeInfo",
("OLD_SPACE", 0x02469): "ArgumentsMarker",
("OLD_SPACE", 0x024c1): "Exception",
("OLD_SPACE", 0x02519): "TerminationException",
("OLD_SPACE", 0x02579): "OptimizedOut",
("OLD_SPACE", 0x025d1): "StaleRegister",
("OLD_SPACE", 0x02651): "EmptyByteArray",
("OLD_SPACE", 0x02661): "EmptyFixedUint8Array",
("OLD_SPACE", 0x02681): "EmptyFixedInt8Array",
("OLD_SPACE", 0x026a1): "EmptyFixedUint16Array",
("OLD_SPACE", 0x026c1): "EmptyFixedInt16Array",
("OLD_SPACE", 0x026e1): "EmptyFixedUint32Array",
("OLD_SPACE", 0x02701): "EmptyFixedInt32Array",
("OLD_SPACE", 0x02721): "EmptyFixedFloat32Array",
("OLD_SPACE", 0x02741): "EmptyFixedFloat64Array",
("OLD_SPACE", 0x02761): "EmptyFixedUint8ClampedArray",
("OLD_SPACE", 0x02781): "EmptyScript",
("OLD_SPACE", 0x02809): "UndefinedCell",
("OLD_SPACE", 0x02819): "EmptySloppyArgumentsElements",
("OLD_SPACE", 0x02839): "EmptySlowElementDictionary",
("OLD_SPACE", 0x02881): "EmptyOrderedHashMap",
("OLD_SPACE", 0x028a9): "EmptyOrderedHashSet",
("OLD_SPACE", 0x028d1): "EmptyPropertyCell",
("OLD_SPACE", 0x028f9): "EmptyWeakCell",
("OLD_SPACE", 0x02969): "NoElementsProtector",
("OLD_SPACE", 0x02991): "IsConcatSpreadableProtector",
("OLD_SPACE", 0x029a1): "SpeciesProtector",
("OLD_SPACE", 0x029c9): "StringLengthProtector",
("OLD_SPACE", 0x029d9): "FastArrayIterationProtector",
("OLD_SPACE", 0x029e9): "ArrayIteratorProtector",
("OLD_SPACE", 0x02a11): "ArrayBufferNeuteringProtector",
("OLD_SPACE", 0x02a89): "InfinityValue",
("OLD_SPACE", 0x02a99): "MinusZeroValue",
("OLD_SPACE", 0x02aa9): "MinusInfinityValue",
}
# List of known V8 Frame Markers.
FRAME_MARKERS = (
"ENTRY",
"CONSTRUCT_ENTRY",
"EXIT",
"OPTIMIZED",
"WASM_COMPILED",
"WASM_TO_JS",
"WASM_TO_WASM",
"JS_TO_WASM",
"WASM_INTERPRETER_ENTRY",
"C_WASM_ENTRY",
"INTERPRETED",
"STUB",
"BUILTIN_CONTINUATION",
"JAVA_SCRIPT_BUILTIN_CONTINUATION",
"INTERNAL",
"CONSTRUCT",
"ARGUMENTS_ADAPTOR",
"BUILTIN",
"BUILTIN_EXIT",
"NATIVE",
)
# This set of constants is generated from a shipping build.
Reference in New Issue View Git Blame Copy Permalink