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deps: cherry-pick 68e89fb from v8's upstream
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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@{nodejs#31947}

This postmortem information is useful for both object inspection, and
function's context variables inspection.

PR-URL: nodejs#3779
Reviewed-By: Ben Noordhuis <info@bnoordhuis.nl>
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indutny authored and ofrobots committed Dec 1, 2015
1 parent bfc0d11 commit bad9c1f
Showing 1 changed file with 47 additions and 0 deletions.
47 changes: 47 additions & 0 deletions deps/v8/tools/gen-postmortem-metadata.py
Original file line number Diff line number Diff line change
Expand Up @@ -98,6 +98,30 @@
'value': 'PropertyDetails::FieldIndexField::kMask' },
{ 'name': 'prop_index_shift',
'value': 'PropertyDetails::FieldIndexField::kShift' },
{ 'name': 'prop_representation_mask',
'value': 'PropertyDetails::RepresentationField::kMask' },
{ 'name': 'prop_representation_shift',
'value': 'PropertyDetails::RepresentationField::kShift' },
{ 'name': 'prop_representation_integer8',
'value': 'Representation::Kind::kInteger8' },
{ 'name': 'prop_representation_uinteger8',
'value': 'Representation::Kind::kUInteger8' },
{ 'name': 'prop_representation_integer16',
'value': 'Representation::Kind::kInteger16' },
{ 'name': 'prop_representation_uinteger16',
'value': 'Representation::Kind::kUInteger16' },
{ 'name': 'prop_representation_smi',
'value': 'Representation::Kind::kSmi' },
{ 'name': 'prop_representation_integer32',
'value': 'Representation::Kind::kInteger32' },
{ 'name': 'prop_representation_double',
'value': 'Representation::Kind::kDouble' },
{ 'name': 'prop_representation_heapobject',
'value': 'Representation::Kind::kHeapObject' },
{ 'name': 'prop_representation_tagged',
'value': 'Representation::Kind::kTagged' },
{ 'name': 'prop_representation_external',
'value': 'Representation::Kind::kExternal' },

{ 'name': 'prop_desc_key',
'value': 'DescriptorArray::kDescriptorKey' },
Expand All @@ -121,6 +145,10 @@
'value': 'Map::ElementsKindBits::kShift' },
{ 'name': 'bit_field3_dictionary_map_shift',
'value': 'Map::DictionaryMap::kShift' },
{ 'name': 'bit_field3_number_of_own_descriptors_mask',
'value': 'Map::NumberOfOwnDescriptorsBits::kMask' },
{ 'name': 'bit_field3_number_of_own_descriptors_shift',
'value': 'Map::NumberOfOwnDescriptorsBits::kShift' },

{ 'name': 'off_fp_context',
'value': 'StandardFrameConstants::kContextOffset' },
Expand All @@ -139,14 +167,31 @@
'value': 'ScopeInfo::kStackLocalCount' },
{ 'name': 'scopeinfo_idx_ncontextlocals',
'value': 'ScopeInfo::kContextLocalCount' },
{ 'name': 'scopeinfo_idx_ncontextglobals',
'value': 'ScopeInfo::kContextGlobalCount' },
{ 'name': 'scopeinfo_idx_first_vars',
'value': 'ScopeInfo::kVariablePartIndex' },

{ 'name': 'sharedfunctioninfo_start_position_mask',
'value': 'SharedFunctionInfo::kStartPositionMask' },
{ 'name': 'sharedfunctioninfo_start_position_shift',
'value': 'SharedFunctionInfo::kStartPositionShift' },

{ 'name': 'jsarray_buffer_was_neutered_mask',
'value': 'JSArrayBuffer::WasNeutered::kMask' },
{ 'name': 'jsarray_buffer_was_neutered_shift',
'value': 'JSArrayBuffer::WasNeutered::kShift' },
];

#
# The following useful fields are missing accessors, so we define fake ones.
#
extras_accessors = [
'JSFunction, context, Context, kContextOffset',
'Context, closure_index, int, CLOSURE_INDEX',
'Context, global_object_index, int, GLOBAL_OBJECT_INDEX',
'Context, previous_index, int, PREVIOUS_INDEX',
'Context, min_context_slots, int, MIN_CONTEXT_SLOTS',
'HeapObject, map, Map, kMapOffset',
'JSObject, elements, Object, kElementsOffset',
'FixedArray, data, uintptr_t, kHeaderSize',
Expand All @@ -162,6 +207,7 @@
'Map, prototype, Object, kPrototypeOffset',
'NameDictionaryShape, prefix_size, int, kPrefixSize',
'NameDictionaryShape, entry_size, int, kEntrySize',
'NameDictionary, prefix_start_index, int, kPrefixStartIndex',
'SeededNumberDictionaryShape, prefix_size, int, kPrefixSize',
'UnseededNumberDictionaryShape, prefix_size, int, kPrefixSize',
'NumberDictionaryShape, entry_size, int, kEntrySize',
Expand All @@ -173,6 +219,7 @@
'SeqOneByteString, chars, char, kHeaderSize',
'SeqTwoByteString, chars, char, kHeaderSize',
'SharedFunctionInfo, code, Code, kCodeOffset',
'SharedFunctionInfo, scope_info, ScopeInfo, kScopeInfoOffset',
'SlicedString, parent, String, kParentOffset',
'Code, instruction_start, uintptr_t, kHeaderSize',
'Code, instruction_size, int, kInstructionSizeOffset',
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