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deps: cherry-pick 68e89fb from v8's upstream · nodejs/node@d9d050d · GitHub

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Commit d9d050d

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indutny
authored and
ofrobots
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deps: cherry-pick 68e89fb from v8's upstream
Original commit message: This commit adds some postmortem data that is otherwise unavailable. I have discovered need in those values when writing: https://github.com/indutny/llnode BUG= Review URL: https://codereview.chromium.org/1436473002 Cr-Commit-Position: refs/heads/master@{#31947} This postmortem information is useful for both object inspection, and function's context variables inspection. Ref: #3779 PR-URL: #4106 Reviewed-By: bnoordhuis - Ben Noordhuis <info@bnoordhuis.nl> Reviewed-By: targos - Michaël Zasso <mic.besace@gmail.com> Reviewed-By: rvagg - Rod Vagg <rod@vagg.org>
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‎deps/v8/tools/gen-postmortem-metadata.py‎

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@@ -98,6 +98,30 @@
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'value': 'PropertyDetails::FieldIndexField::kMask' },
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{ 'name': 'prop_index_shift',
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'value': 'PropertyDetails::FieldIndexField::kShift' },
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{ 'name': 'prop_representation_mask',
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'value': 'PropertyDetails::RepresentationField::kMask' },
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{ 'name': 'prop_representation_shift',
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'value': 'PropertyDetails::RepresentationField::kShift' },
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{ 'name': 'prop_representation_integer8',
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'value': 'Representation::Kind::kInteger8' },
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{ 'name': 'prop_representation_uinteger8',
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'value': 'Representation::Kind::kUInteger8' },
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{ 'name': 'prop_representation_integer16',
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'value': 'Representation::Kind::kInteger16' },
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{ 'name': 'prop_representation_uinteger16',
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'value': 'Representation::Kind::kUInteger16' },
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{ 'name': 'prop_representation_smi',
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'value': 'Representation::Kind::kSmi' },
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{ 'name': 'prop_representation_integer32',
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'value': 'Representation::Kind::kInteger32' },
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{ 'name': 'prop_representation_double',
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'value': 'Representation::Kind::kDouble' },
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{ 'name': 'prop_representation_heapobject',
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'value': 'Representation::Kind::kHeapObject' },
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{ 'name': 'prop_representation_tagged',
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'value': 'Representation::Kind::kTagged' },
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{ 'name': 'prop_representation_external',
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'value': 'Representation::Kind::kExternal' },
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{ 'name': 'prop_desc_key',
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'value': 'DescriptorArray::kDescriptorKey' },
@@ -121,6 +145,10 @@
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'value': 'Map::ElementsKindBits::kShift' },
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{ 'name': 'bit_field3_dictionary_map_shift',
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'value': 'Map::DictionaryMap::kShift' },
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{ 'name': 'bit_field3_number_of_own_descriptors_mask',
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'value': 'Map::NumberOfOwnDescriptorsBits::kMask' },
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{ 'name': 'bit_field3_number_of_own_descriptors_shift',
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'value': 'Map::NumberOfOwnDescriptorsBits::kShift' },
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{ 'name': 'off_fp_context',
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'value': 'StandardFrameConstants::kContextOffset' },
@@ -139,14 +167,31 @@
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'value': 'ScopeInfo::kStackLocalCount' },
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{ 'name': 'scopeinfo_idx_ncontextlocals',
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'value': 'ScopeInfo::kContextLocalCount' },
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{ 'name': 'scopeinfo_idx_ncontextglobals',
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'value': 'ScopeInfo::kContextGlobalCount' },
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{ 'name': 'scopeinfo_idx_first_vars',
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'value': 'ScopeInfo::kVariablePartIndex' },
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{ 'name': 'sharedfunctioninfo_start_position_mask',
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'value': 'SharedFunctionInfo::kStartPositionMask' },
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{ 'name': 'sharedfunctioninfo_start_position_shift',
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'value': 'SharedFunctionInfo::kStartPositionShift' },
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{ 'name': 'jsarray_buffer_was_neutered_mask',
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'value': 'JSArrayBuffer::WasNeutered::kMask' },
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{ 'name': 'jsarray_buffer_was_neutered_shift',
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'value': 'JSArrayBuffer::WasNeutered::kShift' },
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];
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#
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# The following useful fields are missing accessors, so we define fake ones.
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#
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extras_accessors = [
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'JSFunction, context, Context, kContextOffset',
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'Context, closure_index, int, CLOSURE_INDEX',
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'Context, global_object_index, int, GLOBAL_OBJECT_INDEX',
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'Context, previous_index, int, PREVIOUS_INDEX',
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'Context, min_context_slots, int, MIN_CONTEXT_SLOTS',
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'HeapObject, map, Map, kMapOffset',
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'JSObject, elements, Object, kElementsOffset',
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'FixedArray, data, uintptr_t, kHeaderSize',
@@ -162,6 +207,7 @@
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'Map, prototype, Object, kPrototypeOffset',
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'NameDictionaryShape, prefix_size, int, kPrefixSize',
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'NameDictionaryShape, entry_size, int, kEntrySize',
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'NameDictionary, prefix_start_index, int, kPrefixStartIndex',
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'SeededNumberDictionaryShape, prefix_size, int, kPrefixSize',
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'UnseededNumberDictionaryShape, prefix_size, int, kPrefixSize',
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'NumberDictionaryShape, entry_size, int, kEntrySize',
@@ -173,6 +219,7 @@
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'SeqOneByteString, chars, char, kHeaderSize',
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'SeqTwoByteString, chars, char, kHeaderSize',
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'SharedFunctionInfo, code, Code, kCodeOffset',
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'SharedFunctionInfo, scope_info, ScopeInfo, kScopeInfoOffset',
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'SlicedString, parent, String, kParentOffset',
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'Code, instruction_start, uintptr_t, kHeaderSize',
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'Code, instruction_size, int, kInstructionSizeOffset',

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