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test: add test for postmortem metadata validation
This commit adds a test to validate postmortem debugging metadata. When this test runs, it can check for the presence of metadata constants used by tools such as llnode and mdb and report if any have accidentally been removed. PR-URL: #17685 Reviewed-By: James M Snell <[email protected]> Reviewed-By: Anna Henningsen <[email protected]> Reviewed-By: Joyee Cheung <[email protected]> Reviewed-By: Ben Noordhuis <[email protected]> Reviewed-By: Richard Lau <[email protected]>
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,181 @@ | ||
| 'use strict'; | ||
|
|
||
| // This test verifies that expected postmortem debugging metadata is present | ||
| // in the Node.js binary. These constants are used by tools such as llnode and | ||
| // mdb_v8, so this test ensures that they don't vanish between V8 updates. | ||
|
|
||
| const common = require('../common'); | ||
| const assert = require('assert'); | ||
| const { spawnSync } = require('child_process'); | ||
| const args = [process.execPath]; | ||
|
|
||
| if (common.isAIX) | ||
| args.unshift('-Xany', '-B'); | ||
|
|
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| const nm = spawnSync('nm', args); | ||
|
|
||
| if (nm.error && nm.error.errno === 'ENOENT') | ||
| common.skip('nm not found on system'); | ||
|
|
||
| const symbolRe = /\s_?(v8dbg_.+)$/; | ||
| const symbols = nm.stdout.toString().split('\n').reduce((filtered, line) => { | ||
| const match = line.match(symbolRe); | ||
| const symbol = match && match[1]; | ||
|
|
||
| if (symbol) | ||
| filtered.push(symbol); | ||
|
|
||
| return filtered; | ||
| }, []); | ||
| const missing = getExpectedSymbols().filter((symbol) => { | ||
| return !symbols.includes(symbol); | ||
| }); | ||
|
|
||
| assert.strictEqual(missing.length, 0, `Missing constants: ${missing}`); | ||
|
|
||
| // This is only a function so that the long list of expected symbols can be | ||
| // pushed to the bottom of the file for improved readability. | ||
| function getExpectedSymbols() { | ||
| return [ | ||
| 'v8dbg_bit_field3_dictionary_map_shift', | ||
| 'v8dbg_bit_field3_number_of_own_descriptors_shift', | ||
| 'v8dbg_class_Code__instruction_size__int', | ||
| 'v8dbg_class_Code__instruction_start__uintptr_t', | ||
| 'v8dbg_class_ConsString__first__String', | ||
| 'v8dbg_class_ConsString__second__String', | ||
| 'v8dbg_class_FixedArray__data__uintptr_t', | ||
| 'v8dbg_class_FixedArrayBase__length__SMI', | ||
| 'v8dbg_class_FixedTypedArrayBase__base_pointer__Object', | ||
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| 'v8dbg_class_JSArrayBufferView__buffer__Object', | ||
| 'v8dbg_class_JSArrayBufferView__raw_byte_length__Object', | ||
| 'v8dbg_class_JSArrayBufferView__raw_byte_offset__Object', | ||
| 'v8dbg_class_JSDate__value__Object', | ||
| 'v8dbg_class_JSFunction__context__Context', | ||
| 'v8dbg_class_JSFunction__shared__SharedFunctionInfo', | ||
| 'v8dbg_class_JSObject__elements__Object', | ||
| 'v8dbg_class_JSObject__internal_fields__uintptr_t', | ||
| 'v8dbg_class_JSReceiver__raw_properties_or_hash__Object', | ||
| 'v8dbg_class_JSRegExp__source__Object', | ||
| 'v8dbg_class_Map__bit_field3__int', | ||
| 'v8dbg_class_Map__constructor_or_backpointer__Object', | ||
| 'v8dbg_class_Map__inobject_properties_or_constructor_function_index__int', | ||
| 'v8dbg_class_Map__instance_attributes__int', | ||
| 'v8dbg_class_Map__instance_descriptors__DescriptorArray', | ||
| 'v8dbg_class_Map__instance_size__int', | ||
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| 'v8dbg_frametype_OptimizedFrame', | ||
| 'v8dbg_frametype_StubFrame', | ||
| 'v8dbg_jsarray_buffer_was_neutered_mask', | ||
| 'v8dbg_jsarray_buffer_was_neutered_shift', | ||
| 'v8dbg_namedictionary_prefix_start_index', | ||
| 'v8dbg_namedictionaryshape_entry_size', | ||
| 'v8dbg_namedictionaryshape_prefix_size', | ||
| 'v8dbg_off_fp_args', | ||
| 'v8dbg_off_fp_context', | ||
| 'v8dbg_off_fp_function', | ||
| 'v8dbg_prop_attributes_mask', | ||
| 'v8dbg_prop_attributes_shift', | ||
| 'v8dbg_prop_attributes_DONT_ENUM', | ||
| 'v8dbg_prop_attributes_DONT_ENUM', | ||
| 'v8dbg_prop_attributes_NONE', | ||
| 'v8dbg_prop_attributes_READ_ONLY', | ||
| 'v8dbg_prop_desc_details', | ||
| 'v8dbg_prop_desc_key', | ||
| 'v8dbg_prop_desc_size', | ||
| 'v8dbg_prop_desc_value', | ||
| 'v8dbg_prop_idx_first', | ||
| 'v8dbg_prop_index_mask', | ||
| 'v8dbg_prop_index_shift', | ||
| 'v8dbg_prop_kind_mask', | ||
| 'v8dbg_prop_kind_Accessor', | ||
| 'v8dbg_prop_kind_Data', | ||
| 'v8dbg_prop_location_mask', | ||
| 'v8dbg_prop_location_shift', | ||
| 'v8dbg_prop_location_Descriptor', | ||
| 'v8dbg_prop_location_Field', | ||
| 'v8dbg_prop_representation_double', | ||
| 'v8dbg_prop_representation_mask', | ||
| 'v8dbg_prop_representation_shift', | ||
| 'v8dbg_scopeinfo_idx_first_vars', | ||
| 'v8dbg_scopeinfo_idx_ncontextlocals', | ||
| 'v8dbg_scopeinfo_idx_nparams', | ||
| 'v8dbg_scopeinfo_idx_nstacklocals', | ||
| 'v8dbg_sharedfunctioninfo_start_position_mask', | ||
| 'v8dbg_sharedfunctioninfo_start_position_shift', | ||
| 'v8dbg_type_Code__CODE_TYPE', | ||
| 'v8dbg_type_FixedArray__FIXED_ARRAY_TYPE', | ||
| 'v8dbg_type_HeapNumber__HEAP_NUMBER_TYPE', | ||
| 'v8dbg_type_JSArray__JS_ARRAY_TYPE', | ||
| 'v8dbg_type_JSArrayBuffer__JS_ARRAY_BUFFER_TYPE', | ||
| 'v8dbg_type_JSDate__JS_DATE_TYPE', | ||
| 'v8dbg_type_JSFunction__JS_FUNCTION_TYPE', | ||
| 'v8dbg_type_JSGlobalObject__JS_GLOBAL_OBJECT_TYPE', | ||
| 'v8dbg_type_JSGlobalProxy__JS_GLOBAL_PROXY_TYPE', | ||
| 'v8dbg_type_JSObject__JS_OBJECT_TYPE', | ||
| 'v8dbg_type_JSRegExp__JS_REGEXP_TYPE', | ||
| 'v8dbg_type_JSTypedArray__JS_TYPED_ARRAY_TYPE', | ||
| 'v8dbg_type_Map__MAP_TYPE', | ||
| 'v8dbg_type_Oddball__ODDBALL_TYPE', | ||
| 'v8dbg_type_Script__SCRIPT_TYPE', | ||
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| 'v8dbg_ConsStringTag', | ||
| 'v8dbg_ExternalStringTag', | ||
| 'v8dbg_FirstNonstringType', | ||
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| 'v8dbg_HeapObjectTagMask', | ||
| 'v8dbg_OddballException', | ||
| 'v8dbg_OddballFalse', | ||
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| 'v8dbg_OddballTheHole', | ||
| 'v8dbg_OddballTrue', | ||
| 'v8dbg_OddballUndefined', | ||
| 'v8dbg_OddballUninitialized', | ||
| 'v8dbg_OneByteStringTag', | ||
| 'v8dbg_PointerSizeLog2', | ||
| 'v8dbg_SeqStringTag', | ||
| 'v8dbg_SlicedStringTag', | ||
| 'v8dbg_SmiShiftSize', | ||
| 'v8dbg_SmiTag', | ||
| 'v8dbg_SmiTagMask', | ||
| 'v8dbg_SpecialAPIObjectType', | ||
| 'v8dbg_StringEncodingMask', | ||
| 'v8dbg_StringRepresentationMask', | ||
| 'v8dbg_ThinStringTag', | ||
| 'v8dbg_TwoByteStringTag', | ||
| ]; | ||
| } |