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1 // Copyright 2012 the V8 project authors. All rights reserved. | 1 // Copyright 2012 the V8 project authors. All rights reserved. |
2 // Redistribution and use in source and binary forms, with or without | 2 // Redistribution and use in source and binary forms, with or without |
3 // modification, are permitted provided that the following conditions are | 3 // modification, are permitted provided that the following conditions are |
4 // met: | 4 // met: |
5 // | 5 // |
6 // * Redistributions of source code must retain the above copyright | 6 // * Redistributions of source code must retain the above copyright |
7 // notice, this list of conditions and the following disclaimer. | 7 // notice, this list of conditions and the following disclaimer. |
8 // * Redistributions in binary form must reproduce the above | 8 // * Redistributions in binary form must reproduce the above |
9 // copyright notice, this list of conditions and the following | 9 // copyright notice, this list of conditions and the following |
10 // disclaimer in the documentation and/or other materials provided | 10 // disclaimer in the documentation and/or other materials provided |
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1767 void V8HeapExplorer::AddRootEntries(SnapshotFillerInterface* filler) { | 1767 void V8HeapExplorer::AddRootEntries(SnapshotFillerInterface* filler) { |
1768 filler->AddEntry(kInternalRootObject, this); | 1768 filler->AddEntry(kInternalRootObject, this); |
1769 filler->AddEntry(kGcRootsObject, this); | 1769 filler->AddEntry(kGcRootsObject, this); |
1770 GcSubrootsEnumerator enumerator(filler, this); | 1770 GcSubrootsEnumerator enumerator(filler, this); |
1771 heap_->IterateRoots(&enumerator, VISIT_ALL); | 1771 heap_->IterateRoots(&enumerator, VISIT_ALL); |
1772 } | 1772 } |
1773 | 1773 |
1774 | 1774 |
1775 const char* V8HeapExplorer::GetSystemEntryName(HeapObject* object) { | 1775 const char* V8HeapExplorer::GetSystemEntryName(HeapObject* object) { |
1776 switch (object->map()->instance_type()) { | 1776 switch (object->map()->instance_type()) { |
1777 case MAP_TYPE: return "system / Map"; | 1777 case MAP_TYPE: |
1778 switch (Map::cast(object)->instance_type()) { | |
1779 #define MAKE_STRING_MAP_CASE(instance_type, size, name, Name) \ | |
1780 case instance_type: return "system / Map (" #Name ")"; | |
1781 STRING_TYPE_LIST(MAKE_STRING_MAP_CASE) | |
1782 #undef MAKE_STRING_MAP_CASE | |
1783 default: return "system / Map"; | |
1784 } | |
1778 case JS_GLOBAL_PROPERTY_CELL_TYPE: return "system / JSGlobalPropertyCell"; | 1785 case JS_GLOBAL_PROPERTY_CELL_TYPE: return "system / JSGlobalPropertyCell"; |
1779 case FOREIGN_TYPE: return "system / Foreign"; | 1786 case FOREIGN_TYPE: return "system / Foreign"; |
1780 case ODDBALL_TYPE: return "system / Oddball"; | 1787 case ODDBALL_TYPE: return "system / Oddball"; |
1781 #define MAKE_STRUCT_CASE(NAME, Name, name) \ | 1788 #define MAKE_STRUCT_CASE(NAME, Name, name) \ |
1782 case NAME##_TYPE: return "system / "#Name; | 1789 case NAME##_TYPE: return "system / "#Name; |
1783 STRUCT_LIST(MAKE_STRUCT_CASE) | 1790 STRUCT_LIST(MAKE_STRUCT_CASE) |
1784 #undef MAKE_STRUCT_CASE | 1791 #undef MAKE_STRUCT_CASE |
1785 default: return "system"; | 1792 default: return "system"; |
1786 } | 1793 } |
1787 } | 1794 } |
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1844 if (heap_entry == NULL) return; // No interest in this object. | 1851 if (heap_entry == NULL) return; // No interest in this object. |
1845 int entry = heap_entry->index(); | 1852 int entry = heap_entry->index(); |
1846 | 1853 |
1847 bool extract_indexed_refs = true; | 1854 bool extract_indexed_refs = true; |
1848 if (obj->IsJSGlobalProxy()) { | 1855 if (obj->IsJSGlobalProxy()) { |
1849 ExtractJSGlobalProxyReferences(JSGlobalProxy::cast(obj)); | 1856 ExtractJSGlobalProxyReferences(JSGlobalProxy::cast(obj)); |
1850 } else if (obj->IsJSObject()) { | 1857 } else if (obj->IsJSObject()) { |
1851 ExtractJSObjectReferences(entry, JSObject::cast(obj)); | 1858 ExtractJSObjectReferences(entry, JSObject::cast(obj)); |
1852 } else if (obj->IsString()) { | 1859 } else if (obj->IsString()) { |
1853 ExtractStringReferences(entry, String::cast(obj)); | 1860 ExtractStringReferences(entry, String::cast(obj)); |
1854 extract_indexed_refs = false; | 1861 SetInternalReference(obj, entry, "map", obj->map(), HeapObject::kMapOffset); |
Toon Verwaest
2012/10/30 14:03:34
This seems to be unnecessary given that the same f
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1855 } else if (obj->IsContext()) { | 1862 } else if (obj->IsContext()) { |
1856 ExtractContextReferences(entry, Context::cast(obj)); | 1863 ExtractContextReferences(entry, Context::cast(obj)); |
1857 } else if (obj->IsMap()) { | 1864 } else if (obj->IsMap()) { |
1858 ExtractMapReferences(entry, Map::cast(obj)); | 1865 ExtractMapReferences(entry, Map::cast(obj)); |
1859 } else if (obj->IsSharedFunctionInfo()) { | 1866 } else if (obj->IsSharedFunctionInfo()) { |
1860 ExtractSharedFunctionInfoReferences(entry, SharedFunctionInfo::cast(obj)); | 1867 ExtractSharedFunctionInfoReferences(entry, SharedFunctionInfo::cast(obj)); |
1861 } else if (obj->IsScript()) { | 1868 } else if (obj->IsScript()) { |
1862 ExtractScriptReferences(entry, Script::cast(obj)); | 1869 ExtractScriptReferences(entry, Script::cast(obj)); |
1863 } else if (obj->IsCodeCache()) { | 1870 } else if (obj->IsCodeCache()) { |
1864 ExtractCodeCacheReferences(entry, CodeCache::cast(obj)); | 1871 ExtractCodeCacheReferences(entry, CodeCache::cast(obj)); |
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1959 TagObject(js_obj->elements(), "(object elements)"); | 1966 TagObject(js_obj->elements(), "(object elements)"); |
1960 SetInternalReference(obj, entry, | 1967 SetInternalReference(obj, entry, |
1961 "elements", js_obj->elements(), | 1968 "elements", js_obj->elements(), |
1962 JSObject::kElementsOffset); | 1969 JSObject::kElementsOffset); |
1963 } | 1970 } |
1964 | 1971 |
1965 | 1972 |
1966 void V8HeapExplorer::ExtractStringReferences(int entry, String* string) { | 1973 void V8HeapExplorer::ExtractStringReferences(int entry, String* string) { |
1967 if (string->IsConsString()) { | 1974 if (string->IsConsString()) { |
1968 ConsString* cs = ConsString::cast(string); | 1975 ConsString* cs = ConsString::cast(string); |
1969 SetInternalReference(cs, entry, "first", cs->first()); | 1976 SetInternalReference(cs, entry, "first", cs->first(), ConsString::kFirstOffs et); |
1970 SetInternalReference(cs, entry, "second", cs->second()); | 1977 SetInternalReference(cs, entry, "second", cs->second(), ConsString::kSecondO ffset); |
1971 } else if (string->IsSlicedString()) { | 1978 } else if (string->IsSlicedString()) { |
1972 SlicedString* ss = SlicedString::cast(string); | 1979 SlicedString* ss = SlicedString::cast(string); |
1973 SetInternalReference(ss, entry, "parent", ss->parent()); | 1980 SetInternalReference(ss, entry, "parent", ss->parent(), SlicedString::kParen tOffset); |
Yang
2012/10/30 14:39:40
Please keep the 80-char limit.
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1974 } | 1981 } |
1975 } | 1982 } |
1976 | 1983 |
1977 | 1984 |
1978 void V8HeapExplorer::ExtractContextReferences(int entry, Context* context) { | 1985 void V8HeapExplorer::ExtractContextReferences(int entry, Context* context) { |
1979 #define EXTRACT_CONTEXT_FIELD(index, type, name) \ | 1986 #define EXTRACT_CONTEXT_FIELD(index, type, name) \ |
1980 SetInternalReference(context, entry, #name, context->get(Context::index), \ | 1987 SetInternalReference(context, entry, #name, context->get(Context::index), \ |
1981 FixedArray::OffsetOfElementAt(Context::index)); | 1988 FixedArray::OffsetOfElementAt(Context::index)); |
1982 EXTRACT_CONTEXT_FIELD(CLOSURE_INDEX, JSFunction, closure); | 1989 EXTRACT_CONTEXT_FIELD(CLOSURE_INDEX, JSFunction, closure); |
1983 EXTRACT_CONTEXT_FIELD(PREVIOUS_INDEX, Context, previous); | 1990 EXTRACT_CONTEXT_FIELD(PREVIOUS_INDEX, Context, previous); |
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3579 | 3586 |
3580 | 3587 |
3581 void HeapSnapshotJSONSerializer::SortHashMap( | 3588 void HeapSnapshotJSONSerializer::SortHashMap( |
3582 HashMap* map, List<HashMap::Entry*>* sorted_entries) { | 3589 HashMap* map, List<HashMap::Entry*>* sorted_entries) { |
3583 for (HashMap::Entry* p = map->Start(); p != NULL; p = map->Next(p)) | 3590 for (HashMap::Entry* p = map->Start(); p != NULL; p = map->Next(p)) |
3584 sorted_entries->Add(p); | 3591 sorted_entries->Add(p); |
3585 sorted_entries->Sort(SortUsingEntryValue); | 3592 sorted_entries->Sort(SortUsingEntryValue); |
3586 } | 3593 } |
3587 | 3594 |
3588 } } // namespace v8::internal | 3595 } } // namespace v8::internal |
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