1 //===-- SymbolFileDWARF.cpp ------------------------------------*- C++ -*-===//
3 // The LLVM Compiler Infrastructure
5 // This file is distributed under the University of Illinois Open Source
6 // License. See LICENSE.TXT for details.
8 //===----------------------------------------------------------------------===//
10 #include "SymbolFileDWARF.h"
12 // Other libraries and framework includes
13 #include "clang/AST/ASTConsumer.h"
14 #include "clang/AST/ASTContext.h"
15 #include "clang/AST/Decl.h"
16 #include "clang/AST/DeclGroup.h"
17 #include "clang/AST/DeclObjC.h"
18 #include "clang/AST/DeclTemplate.h"
19 #include "clang/Basic/Builtins.h"
20 #include "clang/Basic/IdentifierTable.h"
21 #include "clang/Basic/LangOptions.h"
22 #include "clang/Basic/SourceManager.h"
23 #include "clang/Basic/TargetInfo.h"
24 #include "clang/Basic/Specifiers.h"
25 #include "clang/Sema/DeclSpec.h"
27 #include "llvm/Support/Casting.h"
29 #include "lldb/Core/Module.h"
30 #include "lldb/Core/PluginManager.h"
31 #include "lldb/Core/RegularExpression.h"
32 #include "lldb/Core/Scalar.h"
33 #include "lldb/Core/Section.h"
34 #include "lldb/Core/StreamFile.h"
35 #include "lldb/Core/StreamString.h"
36 #include "lldb/Core/Timer.h"
37 #include "lldb/Core/Value.h"
39 #include "lldb/Host/Host.h"
41 #include "lldb/Symbol/Block.h"
42 #include "lldb/Symbol/ClangExternalASTSourceCallbacks.h"
43 #include "lldb/Symbol/CompileUnit.h"
44 #include "lldb/Symbol/LineTable.h"
45 #include "lldb/Symbol/ObjectFile.h"
46 #include "lldb/Symbol/SymbolVendor.h"
47 #include "lldb/Symbol/VariableList.h"
49 #include "lldb/Target/ObjCLanguageRuntime.h"
50 #include "lldb/Target/CPPLanguageRuntime.h"
52 #include "DWARFCompileUnit.h"
53 #include "DWARFDebugAbbrev.h"
54 #include "DWARFDebugAranges.h"
55 #include "DWARFDebugInfo.h"
56 #include "DWARFDebugInfoEntry.h"
57 #include "DWARFDebugLine.h"
58 #include "DWARFDebugPubnames.h"
59 #include "DWARFDebugRanges.h"
60 #include "DWARFDeclContext.h"
61 #include "DWARFDIECollection.h"
62 #include "DWARFFormValue.h"
63 #include "DWARFLocationList.h"
64 #include "LogChannelDWARF.h"
65 #include "SymbolFileDWARFDebugMap.h"
72 //#define ENABLE_DEBUG_PRINTF // COMMENT OUT THIS LINE PRIOR TO CHECKIN
74 #ifdef ENABLE_DEBUG_PRINTF
76 #define DEBUG_PRINTF(fmt, ...) printf(fmt, __VA_ARGS__)
78 #define DEBUG_PRINTF(fmt, ...)
81 #define DIE_IS_BEING_PARSED ((lldb_private::Type*)1)
84 using namespace lldb_private;
87 //child_requires_parent_class_union_or_struct_to_be_completed (dw_tag_t tag)
93 // case DW_TAG_subprogram:
94 // case DW_TAG_inlined_subroutine:
95 // case DW_TAG_class_type:
96 // case DW_TAG_structure_type:
97 // case DW_TAG_union_type:
104 DW_ACCESS_to_AccessType (uint32_t dwarf_accessibility)
106 switch (dwarf_accessibility)
108 case DW_ACCESS_public: return eAccessPublic;
109 case DW_ACCESS_private: return eAccessPrivate;
110 case DW_ACCESS_protected: return eAccessProtected;
117 removeHostnameFromPathname(const char* path_from_dwarf)
119 if (!path_from_dwarf || !path_from_dwarf[0])
121 return path_from_dwarf;
124 const char *colon_pos = strchr(path_from_dwarf, ':');
127 return path_from_dwarf;
130 // check whether we have a windows path, and so the first character
131 // is a drive-letter not a hostname.
133 colon_pos == path_from_dwarf + 1 &&
134 isalpha(*path_from_dwarf) &&
135 strlen(path_from_dwarf) > 2 &&
136 '\\' == path_from_dwarf[2])
138 return path_from_dwarf;
141 return colon_pos + 1;
144 #if defined(LLDB_CONFIGURATION_DEBUG) || defined(LLDB_CONFIGURATION_RELEASE)
150 void Push (DWARFCompileUnit *cu, const DWARFDebugInfoEntry *die)
152 m_dies.push_back (DIEInfo(cu, die));
156 void LogDIEs (Log *log, SymbolFileDWARF *dwarf)
158 StreamString log_strm;
159 const size_t n = m_dies.size();
160 log_strm.Printf("DIEStack[%" PRIu64 "]:\n", (uint64_t)n);
161 for (size_t i=0; i<n; i++)
163 DWARFCompileUnit *cu = m_dies[i].cu;
164 const DWARFDebugInfoEntry *die = m_dies[i].die;
165 std::string qualified_name;
166 die->GetQualifiedName(dwarf, cu, qualified_name);
167 log_strm.Printf ("[%" PRIu64 "] 0x%8.8x: %s name='%s'\n",
170 DW_TAG_value_to_name(die->Tag()),
171 qualified_name.c_str());
173 log->PutCString(log_strm.GetData());
183 ScopedPopper (DIEStack &die_stack) :
184 m_die_stack (die_stack),
190 Push (DWARFCompileUnit *cu, const DWARFDebugInfoEntry *die)
193 m_die_stack.Push (cu, die);
205 DIEStack &m_die_stack;
211 DIEInfo (DWARFCompileUnit *c, const DWARFDebugInfoEntry *d) :
216 DWARFCompileUnit *cu;
217 const DWARFDebugInfoEntry *die;
219 typedef std::vector<DIEInfo> Stack;
225 SymbolFileDWARF::Initialize()
227 LogChannelDWARF::Initialize();
228 PluginManager::RegisterPlugin (GetPluginNameStatic(),
229 GetPluginDescriptionStatic(),
234 SymbolFileDWARF::Terminate()
236 PluginManager::UnregisterPlugin (CreateInstance);
237 LogChannelDWARF::Initialize();
241 lldb_private::ConstString
242 SymbolFileDWARF::GetPluginNameStatic()
244 static ConstString g_name("dwarf");
249 SymbolFileDWARF::GetPluginDescriptionStatic()
251 return "DWARF and DWARF3 debug symbol file reader.";
256 SymbolFileDWARF::CreateInstance (ObjectFile* obj_file)
258 return new SymbolFileDWARF(obj_file);
262 SymbolFileDWARF::GetTypeList ()
264 if (GetDebugMapSymfile ())
265 return m_debug_map_symfile->GetTypeList();
266 return m_obj_file->GetModule()->GetTypeList();
270 SymbolFileDWARF::GetTypes (DWARFCompileUnit* cu,
271 const DWARFDebugInfoEntry *die,
272 dw_offset_t min_die_offset,
273 dw_offset_t max_die_offset,
281 const dw_offset_t die_offset = die->GetOffset();
283 if (die_offset >= max_die_offset)
286 if (die_offset >= min_die_offset)
288 const dw_tag_t tag = die->Tag();
290 bool add_type = false;
294 case DW_TAG_array_type: add_type = (type_mask & eTypeClassArray ) != 0; break;
295 case DW_TAG_unspecified_type:
296 case DW_TAG_base_type: add_type = (type_mask & eTypeClassBuiltin ) != 0; break;
297 case DW_TAG_class_type: add_type = (type_mask & eTypeClassClass ) != 0; break;
298 case DW_TAG_structure_type: add_type = (type_mask & eTypeClassStruct ) != 0; break;
299 case DW_TAG_union_type: add_type = (type_mask & eTypeClassUnion ) != 0; break;
300 case DW_TAG_enumeration_type: add_type = (type_mask & eTypeClassEnumeration ) != 0; break;
301 case DW_TAG_subroutine_type:
302 case DW_TAG_subprogram:
303 case DW_TAG_inlined_subroutine: add_type = (type_mask & eTypeClassFunction ) != 0; break;
304 case DW_TAG_pointer_type: add_type = (type_mask & eTypeClassPointer ) != 0; break;
305 case DW_TAG_rvalue_reference_type:
306 case DW_TAG_reference_type: add_type = (type_mask & eTypeClassReference ) != 0; break;
307 case DW_TAG_typedef: add_type = (type_mask & eTypeClassTypedef ) != 0; break;
308 case DW_TAG_ptr_to_member_type: add_type = (type_mask & eTypeClassMemberPointer ) != 0; break;
313 const bool assert_not_being_parsed = true;
314 Type *type = ResolveTypeUID (cu, die, assert_not_being_parsed);
317 if (type_set.find(type) == type_set.end())
318 type_set.insert(type);
323 for (const DWARFDebugInfoEntry *child_die = die->GetFirstChild();
325 child_die = child_die->GetSibling())
327 GetTypes (cu, child_die, min_die_offset, max_die_offset, type_mask, type_set);
334 SymbolFileDWARF::GetTypes (SymbolContextScope *sc_scope,
341 CompileUnit *comp_unit = NULL;
342 DWARFCompileUnit* dwarf_cu = NULL;
344 comp_unit = sc_scope->CalculateSymbolContextCompileUnit();
348 dwarf_cu = GetDWARFCompileUnit(comp_unit);
353 dwarf_cu->GetOffset(),
354 dwarf_cu->GetNextCompileUnitOffset(),
360 DWARFDebugInfo* info = DebugInfo();
363 const size_t num_cus = info->GetNumCompileUnits();
364 for (size_t cu_idx=0; cu_idx<num_cus; ++cu_idx)
366 dwarf_cu = info->GetCompileUnitAtIndex(cu_idx);
379 // if (m_using_apple_tables)
381 // DWARFMappedHash::MemoryTable *apple_types = m_apple_types_ap.get();
384 // apple_types->ForEach([this, &type_set, apple_types, type_mask](const DWARFMappedHash::DIEInfoArray &die_info_array) -> bool {
386 // for (auto die_info: die_info_array)
388 // bool add_type = TagMatchesTypeMask (type_mask, 0);
391 // dw_tag_t tag = die_info.tag;
394 // const DWARFDebugInfoEntry *die = DebugInfo()->GetDIEPtr(die_info.offset, NULL);
397 // add_type = TagMatchesTypeMask (type_mask, tag);
401 // Type *type = ResolveTypeUID(die_info.offset);
403 // if (type_set.find(type) == type_set.end())
404 // type_set.insert(type);
407 // return true; // Keep iterating
416 // m_type_index.ForEach([this, &type_set, type_mask](const char *name, uint32_t die_offset) -> bool {
418 // bool add_type = TagMatchesTypeMask (type_mask, 0);
422 // const DWARFDebugInfoEntry *die = DebugInfo()->GetDIEPtr(die_offset, NULL);
425 // const dw_tag_t tag = die->Tag();
426 // add_type = TagMatchesTypeMask (type_mask, tag);
432 // Type *type = ResolveTypeUID(die_offset);
434 // if (type_set.find(type) == type_set.end())
435 // type_set.insert(type);
437 // return true; // Keep iterating
441 std::set<ClangASTType> clang_type_set;
442 size_t num_types_added = 0;
443 for (Type *type : type_set)
445 ClangASTType clang_type = type->GetClangForwardType();
446 if (clang_type_set.find(clang_type) == clang_type_set.end())
448 clang_type_set.insert(clang_type);
449 type_list.Insert (type->shared_from_this());
453 return num_types_added;
457 //----------------------------------------------------------------------
458 // Gets the first parent that is a lexical block, function or inlined
459 // subroutine, or compile unit.
460 //----------------------------------------------------------------------
461 static const DWARFDebugInfoEntry *
462 GetParentSymbolContextDIE(const DWARFDebugInfoEntry *child_die)
464 const DWARFDebugInfoEntry *die;
465 for (die = child_die->GetParent(); die != NULL; die = die->GetParent())
467 dw_tag_t tag = die->Tag();
471 case DW_TAG_compile_unit:
472 case DW_TAG_subprogram:
473 case DW_TAG_inlined_subroutine:
474 case DW_TAG_lexical_block:
482 SymbolFileDWARF::SymbolFileDWARF(ObjectFile* objfile) :
483 SymbolFile (objfile),
484 UserID (0), // Used by SymbolFileDWARFDebugMap to when this class parses .o files to contain the .o file index/ID
485 m_debug_map_module_wp (),
486 m_debug_map_symfile (NULL),
487 m_clang_tu_decl (NULL),
489 m_data_debug_abbrev (),
490 m_data_debug_aranges (),
491 m_data_debug_frame (),
492 m_data_debug_info (),
493 m_data_debug_line (),
495 m_data_debug_ranges (),
497 m_data_apple_names (),
498 m_data_apple_types (),
499 m_data_apple_namespaces (),
505 m_apple_namespaces_ap (),
507 m_function_basename_index(),
508 m_function_fullname_index(),
509 m_function_method_index(),
510 m_function_selector_index(),
511 m_objc_class_selectors_index(),
516 m_is_external_ast_source (false),
517 m_using_apple_tables (false),
518 m_supports_DW_AT_APPLE_objc_complete_type (eLazyBoolCalculate),
520 m_unique_ast_type_map ()
524 SymbolFileDWARF::~SymbolFileDWARF()
526 if (m_is_external_ast_source)
528 ModuleSP module_sp (m_obj_file->GetModule());
530 module_sp->GetClangASTContext().RemoveExternalSource ();
534 static const ConstString &
535 GetDWARFMachOSegmentName ()
537 static ConstString g_dwarf_section_name ("__DWARF");
538 return g_dwarf_section_name;
541 UniqueDWARFASTTypeMap &
542 SymbolFileDWARF::GetUniqueDWARFASTTypeMap ()
544 if (GetDebugMapSymfile ())
545 return m_debug_map_symfile->GetUniqueDWARFASTTypeMap ();
546 return m_unique_ast_type_map;
550 SymbolFileDWARF::GetClangASTContext ()
552 if (GetDebugMapSymfile ())
553 return m_debug_map_symfile->GetClangASTContext ();
555 ClangASTContext &ast = m_obj_file->GetModule()->GetClangASTContext();
556 if (!m_is_external_ast_source)
558 m_is_external_ast_source = true;
559 llvm::IntrusiveRefCntPtr<clang::ExternalASTSource> ast_source_ap (
560 new ClangExternalASTSourceCallbacks (SymbolFileDWARF::CompleteTagDecl,
561 SymbolFileDWARF::CompleteObjCInterfaceDecl,
562 SymbolFileDWARF::FindExternalVisibleDeclsByName,
563 SymbolFileDWARF::LayoutRecordType,
565 ast.SetExternalSource (ast_source_ap);
571 SymbolFileDWARF::InitializeObject()
573 // Install our external AST source callbacks so we can complete Clang types.
574 ModuleSP module_sp (m_obj_file->GetModule());
577 const SectionList *section_list = module_sp->GetSectionList();
579 const Section* section = section_list->FindSectionByName(GetDWARFMachOSegmentName ()).get();
581 // Memory map the DWARF mach-o segment so we have everything mmap'ed
582 // to keep our heap memory usage down.
584 m_obj_file->MemoryMapSectionData(section, m_dwarf_data);
586 get_apple_names_data();
587 if (m_data_apple_names.GetByteSize() > 0)
589 m_apple_names_ap.reset (new DWARFMappedHash::MemoryTable (m_data_apple_names, get_debug_str_data(), ".apple_names"));
590 if (m_apple_names_ap->IsValid())
591 m_using_apple_tables = true;
593 m_apple_names_ap.reset();
595 get_apple_types_data();
596 if (m_data_apple_types.GetByteSize() > 0)
598 m_apple_types_ap.reset (new DWARFMappedHash::MemoryTable (m_data_apple_types, get_debug_str_data(), ".apple_types"));
599 if (m_apple_types_ap->IsValid())
600 m_using_apple_tables = true;
602 m_apple_types_ap.reset();
605 get_apple_namespaces_data();
606 if (m_data_apple_namespaces.GetByteSize() > 0)
608 m_apple_namespaces_ap.reset (new DWARFMappedHash::MemoryTable (m_data_apple_namespaces, get_debug_str_data(), ".apple_namespaces"));
609 if (m_apple_namespaces_ap->IsValid())
610 m_using_apple_tables = true;
612 m_apple_namespaces_ap.reset();
615 get_apple_objc_data();
616 if (m_data_apple_objc.GetByteSize() > 0)
618 m_apple_objc_ap.reset (new DWARFMappedHash::MemoryTable (m_data_apple_objc, get_debug_str_data(), ".apple_objc"));
619 if (m_apple_objc_ap->IsValid())
620 m_using_apple_tables = true;
622 m_apple_objc_ap.reset();
627 SymbolFileDWARF::SupportedVersion(uint16_t version)
629 return version == 2 || version == 3 || version == 4;
633 SymbolFileDWARF::CalculateAbilities ()
635 uint32_t abilities = 0;
636 if (m_obj_file != NULL)
638 const Section* section = NULL;
639 const SectionList *section_list = m_obj_file->GetSectionList();
640 if (section_list == NULL)
643 uint64_t debug_abbrev_file_size = 0;
644 uint64_t debug_info_file_size = 0;
645 uint64_t debug_line_file_size = 0;
647 section = section_list->FindSectionByName(GetDWARFMachOSegmentName ()).get();
650 section_list = §ion->GetChildren ();
652 section = section_list->FindSectionByType (eSectionTypeDWARFDebugInfo, true).get();
655 debug_info_file_size = section->GetFileSize();
657 section = section_list->FindSectionByType (eSectionTypeDWARFDebugAbbrev, true).get();
659 debug_abbrev_file_size = section->GetFileSize();
661 m_flags.Set (flagsGotDebugAbbrevData);
663 section = section_list->FindSectionByType (eSectionTypeDWARFDebugAranges, true).get();
665 m_flags.Set (flagsGotDebugArangesData);
667 section = section_list->FindSectionByType (eSectionTypeDWARFDebugFrame, true).get();
669 m_flags.Set (flagsGotDebugFrameData);
671 section = section_list->FindSectionByType (eSectionTypeDWARFDebugLine, true).get();
673 debug_line_file_size = section->GetFileSize();
675 m_flags.Set (flagsGotDebugLineData);
677 section = section_list->FindSectionByType (eSectionTypeDWARFDebugLoc, true).get();
679 m_flags.Set (flagsGotDebugLocData);
681 section = section_list->FindSectionByType (eSectionTypeDWARFDebugMacInfo, true).get();
683 m_flags.Set (flagsGotDebugMacInfoData);
685 section = section_list->FindSectionByType (eSectionTypeDWARFDebugPubNames, true).get();
687 m_flags.Set (flagsGotDebugPubNamesData);
689 section = section_list->FindSectionByType (eSectionTypeDWARFDebugPubTypes, true).get();
691 m_flags.Set (flagsGotDebugPubTypesData);
693 section = section_list->FindSectionByType (eSectionTypeDWARFDebugRanges, true).get();
695 m_flags.Set (flagsGotDebugRangesData);
697 section = section_list->FindSectionByType (eSectionTypeDWARFDebugStr, true).get();
699 m_flags.Set (flagsGotDebugStrData);
703 const char *symfile_dir_cstr = m_obj_file->GetFileSpec().GetDirectory().GetCString();
704 if (symfile_dir_cstr)
706 if (strcasestr(symfile_dir_cstr, ".dsym"))
708 if (m_obj_file->GetType() == ObjectFile::eTypeDebugInfo)
710 // We have a dSYM file that didn't have a any debug info.
711 // If the string table has a size of 1, then it was made from
712 // an executable with no debug info, or from an executable that
714 section = section_list->FindSectionByType (eSectionTypeDWARFDebugStr, true).get();
715 if (section && section->GetFileSize() == 1)
717 m_obj_file->GetModule()->ReportWarning ("empty dSYM file detected, dSYM was created with an executable with no debug info.");
724 if (debug_abbrev_file_size > 0 && debug_info_file_size > 0)
725 abilities |= CompileUnits | Functions | Blocks | GlobalVariables | LocalVariables | VariableTypes;
727 if (debug_line_file_size > 0)
728 abilities |= LineTables;
733 const DWARFDataExtractor&
734 SymbolFileDWARF::GetCachedSectionData (uint32_t got_flag, SectionType sect_type, DWARFDataExtractor &data)
736 if (m_flags.IsClear (got_flag))
738 ModuleSP module_sp (m_obj_file->GetModule());
739 m_flags.Set (got_flag);
740 const SectionList *section_list = module_sp->GetSectionList();
743 SectionSP section_sp (section_list->FindSectionByType(sect_type, true));
746 // See if we memory mapped the DWARF segment?
747 if (m_dwarf_data.GetByteSize())
749 data.SetData(m_dwarf_data, section_sp->GetOffset (), section_sp->GetFileSize());
753 if (m_obj_file->ReadSectionData (section_sp.get(), data) == 0)
762 const DWARFDataExtractor&
763 SymbolFileDWARF::get_debug_abbrev_data()
765 return GetCachedSectionData (flagsGotDebugAbbrevData, eSectionTypeDWARFDebugAbbrev, m_data_debug_abbrev);
768 const DWARFDataExtractor&
769 SymbolFileDWARF::get_debug_aranges_data()
771 return GetCachedSectionData (flagsGotDebugArangesData, eSectionTypeDWARFDebugAranges, m_data_debug_aranges);
774 const DWARFDataExtractor&
775 SymbolFileDWARF::get_debug_frame_data()
777 return GetCachedSectionData (flagsGotDebugFrameData, eSectionTypeDWARFDebugFrame, m_data_debug_frame);
780 const DWARFDataExtractor&
781 SymbolFileDWARF::get_debug_info_data()
783 return GetCachedSectionData (flagsGotDebugInfoData, eSectionTypeDWARFDebugInfo, m_data_debug_info);
786 const DWARFDataExtractor&
787 SymbolFileDWARF::get_debug_line_data()
789 return GetCachedSectionData (flagsGotDebugLineData, eSectionTypeDWARFDebugLine, m_data_debug_line);
792 const DWARFDataExtractor&
793 SymbolFileDWARF::get_debug_loc_data()
795 return GetCachedSectionData (flagsGotDebugLocData, eSectionTypeDWARFDebugLoc, m_data_debug_loc);
798 const DWARFDataExtractor&
799 SymbolFileDWARF::get_debug_ranges_data()
801 return GetCachedSectionData (flagsGotDebugRangesData, eSectionTypeDWARFDebugRanges, m_data_debug_ranges);
804 const DWARFDataExtractor&
805 SymbolFileDWARF::get_debug_str_data()
807 return GetCachedSectionData (flagsGotDebugStrData, eSectionTypeDWARFDebugStr, m_data_debug_str);
810 const DWARFDataExtractor&
811 SymbolFileDWARF::get_apple_names_data()
813 return GetCachedSectionData (flagsGotAppleNamesData, eSectionTypeDWARFAppleNames, m_data_apple_names);
816 const DWARFDataExtractor&
817 SymbolFileDWARF::get_apple_types_data()
819 return GetCachedSectionData (flagsGotAppleTypesData, eSectionTypeDWARFAppleTypes, m_data_apple_types);
822 const DWARFDataExtractor&
823 SymbolFileDWARF::get_apple_namespaces_data()
825 return GetCachedSectionData (flagsGotAppleNamespacesData, eSectionTypeDWARFAppleNamespaces, m_data_apple_namespaces);
828 const DWARFDataExtractor&
829 SymbolFileDWARF::get_apple_objc_data()
831 return GetCachedSectionData (flagsGotAppleObjCData, eSectionTypeDWARFAppleObjC, m_data_apple_objc);
836 SymbolFileDWARF::DebugAbbrev()
838 if (m_abbr.get() == NULL)
840 const DWARFDataExtractor &debug_abbrev_data = get_debug_abbrev_data();
841 if (debug_abbrev_data.GetByteSize() > 0)
843 m_abbr.reset(new DWARFDebugAbbrev());
845 m_abbr->Parse(debug_abbrev_data);
851 const DWARFDebugAbbrev*
852 SymbolFileDWARF::DebugAbbrev() const
859 SymbolFileDWARF::DebugInfo()
861 if (m_info.get() == NULL)
863 Timer scoped_timer(__PRETTY_FUNCTION__, "%s this = %p",
864 __PRETTY_FUNCTION__, static_cast<void*>(this));
865 if (get_debug_info_data().GetByteSize() > 0)
867 m_info.reset(new DWARFDebugInfo());
870 m_info->SetDwarfData(this);
877 const DWARFDebugInfo*
878 SymbolFileDWARF::DebugInfo() const
884 SymbolFileDWARF::GetDWARFCompileUnit(lldb_private::CompileUnit *comp_unit)
886 DWARFDebugInfo* info = DebugInfo();
889 if (GetDebugMapSymfile ())
891 // The debug map symbol file made the compile units for this DWARF
892 // file which is .o file with DWARF in it, and we should have
893 // only 1 compile unit which is at offset zero in the DWARF.
894 // TODO: modify to support LTO .o files where each .o file might
895 // have multiple DW_TAG_compile_unit tags.
896 return info->GetCompileUnit(0).get();
900 // Just a normal DWARF file whose user ID for the compile unit is
901 // the DWARF offset itself
902 return info->GetCompileUnit((dw_offset_t)comp_unit->GetID()).get();
910 SymbolFileDWARF::DebugRanges()
912 if (m_ranges.get() == NULL)
914 Timer scoped_timer(__PRETTY_FUNCTION__, "%s this = %p",
915 __PRETTY_FUNCTION__, static_cast<void*>(this));
916 if (get_debug_ranges_data().GetByteSize() > 0)
918 m_ranges.reset(new DWARFDebugRanges());
920 m_ranges->Extract(this);
923 return m_ranges.get();
926 const DWARFDebugRanges*
927 SymbolFileDWARF::DebugRanges() const
929 return m_ranges.get();
933 SymbolFileDWARF::ParseCompileUnit (DWARFCompileUnit* dwarf_cu, uint32_t cu_idx)
938 CompileUnit *comp_unit = (CompileUnit*)dwarf_cu->GetUserData();
941 // We already parsed this compile unit, had out a shared pointer to it
942 cu_sp = comp_unit->shared_from_this();
946 if (GetDebugMapSymfile ())
948 // Let the debug map create the compile unit
949 cu_sp = m_debug_map_symfile->GetCompileUnit(this);
950 dwarf_cu->SetUserData(cu_sp.get());
954 ModuleSP module_sp (m_obj_file->GetModule());
957 const DWARFDebugInfoEntry * cu_die = dwarf_cu->GetCompileUnitDIEOnly ();
960 const char * cu_die_name = cu_die->GetName(this, dwarf_cu);
961 const char * cu_comp_dir = cu_die->GetAttributeValueAsString(this, dwarf_cu, DW_AT_comp_dir, NULL);
962 LanguageType cu_language = (LanguageType)cu_die->GetAttributeValueAsUnsigned(this, dwarf_cu, DW_AT_language, 0);
965 std::string ramapped_file;
966 FileSpec cu_file_spec;
968 if (cu_die_name[0] == '/' || cu_comp_dir == NULL || cu_comp_dir[0] == '\0')
970 // If we have a full path to the compile unit, we don't need to resolve
971 // the file. This can be expensive e.g. when the source files are NFS mounted.
972 if (module_sp->RemapSourceFile(cu_die_name, ramapped_file))
973 cu_file_spec.SetFile (ramapped_file.c_str(), false);
975 cu_file_spec.SetFile (cu_die_name, false);
979 // DWARF2/3 suggests the form hostname:pathname for compilation directory.
980 // Remove the host part if present.
981 cu_comp_dir = removeHostnameFromPathname(cu_comp_dir);
982 std::string fullpath(cu_comp_dir);
984 if (*fullpath.rbegin() != '/')
986 fullpath += cu_die_name;
987 if (module_sp->RemapSourceFile (fullpath.c_str(), ramapped_file))
988 cu_file_spec.SetFile (ramapped_file.c_str(), false);
990 cu_file_spec.SetFile (fullpath.c_str(), false);
993 cu_sp.reset(new CompileUnit (module_sp,
996 MakeUserID(dwarf_cu->GetOffset()),
1000 dwarf_cu->SetUserData(cu_sp.get());
1002 // Figure out the compile unit index if we weren't given one
1003 if (cu_idx == UINT32_MAX)
1004 DebugInfo()->GetCompileUnit(dwarf_cu->GetOffset(), &cu_idx);
1006 m_obj_file->GetModule()->GetSymbolVendor()->SetCompileUnitAtIndex(cu_idx, cu_sp);
1018 SymbolFileDWARF::GetNumCompileUnits()
1020 DWARFDebugInfo* info = DebugInfo();
1022 return info->GetNumCompileUnits();
1027 SymbolFileDWARF::ParseCompileUnitAtIndex(uint32_t cu_idx)
1030 DWARFDebugInfo* info = DebugInfo();
1033 DWARFCompileUnit* dwarf_cu = info->GetCompileUnitAtIndex(cu_idx);
1035 cu_sp = ParseCompileUnit(dwarf_cu, cu_idx);
1041 AddRangesToBlock (Block& block,
1042 DWARFDebugRanges::RangeList& ranges,
1043 addr_t block_base_addr)
1045 const size_t num_ranges = ranges.GetSize();
1046 for (size_t i = 0; i<num_ranges; ++i)
1048 const DWARFDebugRanges::Range &range = ranges.GetEntryRef (i);
1049 const addr_t range_base = range.GetRangeBase();
1050 assert (range_base >= block_base_addr);
1051 block.AddRange(Block::Range (range_base - block_base_addr, range.GetByteSize()));;
1053 block.FinalizeRanges ();
1058 SymbolFileDWARF::ParseCompileUnitFunction (const SymbolContext& sc, DWARFCompileUnit* dwarf_cu, const DWARFDebugInfoEntry *die)
1060 DWARFDebugRanges::RangeList func_ranges;
1061 const char *name = NULL;
1062 const char *mangled = NULL;
1065 int decl_column = 0;
1068 int call_column = 0;
1069 DWARFExpression frame_base;
1071 assert (die->Tag() == DW_TAG_subprogram);
1073 if (die->Tag() != DW_TAG_subprogram)
1076 if (die->GetDIENamesAndRanges (this,
1089 // Union of all ranges in the function DIE (if the function is discontiguous)
1090 AddressRange func_range;
1091 lldb::addr_t lowest_func_addr = func_ranges.GetMinRangeBase (0);
1092 lldb::addr_t highest_func_addr = func_ranges.GetMaxRangeEnd (0);
1093 if (lowest_func_addr != LLDB_INVALID_ADDRESS && lowest_func_addr <= highest_func_addr)
1095 ModuleSP module_sp (m_obj_file->GetModule());
1096 func_range.GetBaseAddress().ResolveAddressUsingFileSections (lowest_func_addr, module_sp->GetSectionList());
1097 if (func_range.GetBaseAddress().IsValid())
1098 func_range.SetByteSize(highest_func_addr - lowest_func_addr);
1101 if (func_range.GetBaseAddress().IsValid())
1105 func_name.SetValue(ConstString(mangled), true);
1107 func_name.SetValue(ConstString(name), false);
1110 std::unique_ptr<Declaration> decl_ap;
1111 if (decl_file != 0 || decl_line != 0 || decl_column != 0)
1112 decl_ap.reset(new Declaration (sc.comp_unit->GetSupportFiles().GetFileSpecAtIndex(decl_file),
1116 // Supply the type _only_ if it has already been parsed
1117 Type *func_type = m_die_to_type.lookup (die);
1119 assert(func_type == NULL || func_type != DIE_IS_BEING_PARSED);
1121 if (FixupAddress (func_range.GetBaseAddress()))
1123 const user_id_t func_user_id = MakeUserID(die->GetOffset());
1124 func_sp.reset(new Function (sc.comp_unit,
1125 MakeUserID(func_user_id), // UserID is the DIE offset
1126 MakeUserID(func_user_id),
1129 func_range)); // first address range
1131 if (func_sp.get() != NULL)
1133 if (frame_base.IsValid())
1134 func_sp->GetFrameBaseExpression() = frame_base;
1135 sc.comp_unit->AddFunction(func_sp);
1136 return func_sp.get();
1145 SymbolFileDWARF::FixupAddress (Address &addr)
1147 SymbolFileDWARFDebugMap * debug_map_symfile = GetDebugMapSymfile ();
1148 if (debug_map_symfile)
1150 return debug_map_symfile->LinkOSOAddress(addr);
1152 // This is a normal DWARF file, no address fixups need to happen
1156 SymbolFileDWARF::ParseCompileUnitLanguage (const SymbolContext& sc)
1158 assert (sc.comp_unit);
1159 DWARFCompileUnit* dwarf_cu = GetDWARFCompileUnit(sc.comp_unit);
1162 const DWARFDebugInfoEntry *die = dwarf_cu->GetCompileUnitDIEOnly();
1165 const uint32_t language = die->GetAttributeValueAsUnsigned(this, dwarf_cu, DW_AT_language, 0);
1167 return (lldb::LanguageType)language;
1170 return eLanguageTypeUnknown;
1174 SymbolFileDWARF::ParseCompileUnitFunctions(const SymbolContext &sc)
1176 assert (sc.comp_unit);
1177 size_t functions_added = 0;
1178 DWARFCompileUnit* dwarf_cu = GetDWARFCompileUnit(sc.comp_unit);
1181 DWARFDIECollection function_dies;
1182 const size_t num_functions = dwarf_cu->AppendDIEsWithTag (DW_TAG_subprogram, function_dies);
1184 for (func_idx = 0; func_idx < num_functions; ++func_idx)
1186 const DWARFDebugInfoEntry *die = function_dies.GetDIEPtrAtIndex(func_idx);
1187 if (sc.comp_unit->FindFunctionByUID (MakeUserID(die->GetOffset())).get() == NULL)
1189 if (ParseCompileUnitFunction(sc, dwarf_cu, die))
1195 return functions_added;
1199 SymbolFileDWARF::ParseCompileUnitSupportFiles (const SymbolContext& sc, FileSpecList& support_files)
1201 assert (sc.comp_unit);
1202 DWARFCompileUnit* dwarf_cu = GetDWARFCompileUnit(sc.comp_unit);
1205 const DWARFDebugInfoEntry * cu_die = dwarf_cu->GetCompileUnitDIEOnly();
1209 const char * cu_comp_dir = cu_die->GetAttributeValueAsString(this, dwarf_cu, DW_AT_comp_dir, NULL);
1211 // DWARF2/3 suggests the form hostname:pathname for compilation directory.
1212 // Remove the host part if present.
1213 cu_comp_dir = removeHostnameFromPathname(cu_comp_dir);
1215 dw_offset_t stmt_list = cu_die->GetAttributeValueAsUnsigned(this, dwarf_cu, DW_AT_stmt_list, DW_INVALID_OFFSET);
1217 // All file indexes in DWARF are one based and a file of index zero is
1218 // supposed to be the compile unit itself.
1219 support_files.Append (*sc.comp_unit);
1221 return DWARFDebugLine::ParseSupportFiles(sc.comp_unit->GetModule(), get_debug_line_data(), cu_comp_dir, stmt_list, support_files);
1227 struct ParseDWARFLineTableCallbackInfo
1229 LineTable* line_table;
1230 std::unique_ptr<LineSequence> sequence_ap;
1233 //----------------------------------------------------------------------
1234 // ParseStatementTableCallback
1235 //----------------------------------------------------------------------
1237 ParseDWARFLineTableCallback(dw_offset_t offset, const DWARFDebugLine::State& state, void* userData)
1239 if (state.row == DWARFDebugLine::State::StartParsingLineTable)
1241 // Just started parsing the line table
1243 else if (state.row == DWARFDebugLine::State::DoneParsingLineTable)
1245 // Done parsing line table, nothing to do for the cleanup
1249 ParseDWARFLineTableCallbackInfo* info = (ParseDWARFLineTableCallbackInfo*)userData;
1250 LineTable* line_table = info->line_table;
1252 // If this is our first time here, we need to create a
1253 // sequence container.
1254 if (!info->sequence_ap.get())
1256 info->sequence_ap.reset(line_table->CreateLineSequenceContainer());
1257 assert(info->sequence_ap.get());
1259 line_table->AppendLineEntryToSequence (info->sequence_ap.get(),
1267 state.epilogue_begin,
1268 state.end_sequence);
1269 if (state.end_sequence)
1271 // First, put the current sequence into the line table.
1272 line_table->InsertSequence(info->sequence_ap.get());
1273 // Then, empty it to prepare for the next sequence.
1274 info->sequence_ap->Clear();
1280 SymbolFileDWARF::ParseCompileUnitLineTable (const SymbolContext &sc)
1282 assert (sc.comp_unit);
1283 if (sc.comp_unit->GetLineTable() != NULL)
1286 DWARFCompileUnit* dwarf_cu = GetDWARFCompileUnit(sc.comp_unit);
1289 const DWARFDebugInfoEntry *dwarf_cu_die = dwarf_cu->GetCompileUnitDIEOnly();
1292 const dw_offset_t cu_line_offset = dwarf_cu_die->GetAttributeValueAsUnsigned(this, dwarf_cu, DW_AT_stmt_list, DW_INVALID_OFFSET);
1293 if (cu_line_offset != DW_INVALID_OFFSET)
1295 std::unique_ptr<LineTable> line_table_ap(new LineTable(sc.comp_unit));
1296 if (line_table_ap.get())
1298 ParseDWARFLineTableCallbackInfo info;
1299 info.line_table = line_table_ap.get();
1300 lldb::offset_t offset = cu_line_offset;
1301 DWARFDebugLine::ParseStatementTable(get_debug_line_data(), &offset, ParseDWARFLineTableCallback, &info);
1302 if (m_debug_map_symfile)
1304 // We have an object file that has a line table with addresses
1305 // that are not linked. We need to link the line table and convert
1306 // the addresses that are relative to the .o file into addresses
1307 // for the main executable.
1308 sc.comp_unit->SetLineTable (m_debug_map_symfile->LinkOSOLineTable (this, line_table_ap.get()));
1312 sc.comp_unit->SetLineTable(line_table_ap.release());
1323 SymbolFileDWARF::ParseFunctionBlocks
1325 const SymbolContext& sc,
1326 Block *parent_block,
1327 DWARFCompileUnit* dwarf_cu,
1328 const DWARFDebugInfoEntry *die,
1329 addr_t subprogram_low_pc,
1333 size_t blocks_added = 0;
1336 dw_tag_t tag = die->Tag();
1340 case DW_TAG_inlined_subroutine:
1341 case DW_TAG_subprogram:
1342 case DW_TAG_lexical_block:
1344 Block *block = NULL;
1345 if (tag == DW_TAG_subprogram)
1347 // Skip any DW_TAG_subprogram DIEs that are inside
1348 // of a normal or inlined functions. These will be
1349 // parsed on their own as separate entities.
1354 block = parent_block;
1358 BlockSP block_sp(new Block (MakeUserID(die->GetOffset())));
1359 parent_block->AddChild(block_sp);
1360 block = block_sp.get();
1362 DWARFDebugRanges::RangeList ranges;
1363 const char *name = NULL;
1364 const char *mangled_name = NULL;
1368 int decl_column = 0;
1371 int call_column = 0;
1372 if (die->GetDIENamesAndRanges (this,
1377 decl_file, decl_line, decl_column,
1378 call_file, call_line, call_column))
1380 if (tag == DW_TAG_subprogram)
1382 assert (subprogram_low_pc == LLDB_INVALID_ADDRESS);
1383 subprogram_low_pc = ranges.GetMinRangeBase(0);
1385 else if (tag == DW_TAG_inlined_subroutine)
1387 // We get called here for inlined subroutines in two ways.
1388 // The first time is when we are making the Function object
1389 // for this inlined concrete instance. Since we're creating a top level block at
1390 // here, the subprogram_low_pc will be LLDB_INVALID_ADDRESS. So we need to
1391 // adjust the containing address.
1392 // The second time is when we are parsing the blocks inside the function that contains
1393 // the inlined concrete instance. Since these will be blocks inside the containing "real"
1394 // function the offset will be for that function.
1395 if (subprogram_low_pc == LLDB_INVALID_ADDRESS)
1397 subprogram_low_pc = ranges.GetMinRangeBase(0);
1401 AddRangesToBlock (*block, ranges, subprogram_low_pc);
1403 if (tag != DW_TAG_subprogram && (name != NULL || mangled_name != NULL))
1405 std::unique_ptr<Declaration> decl_ap;
1406 if (decl_file != 0 || decl_line != 0 || decl_column != 0)
1407 decl_ap.reset(new Declaration(sc.comp_unit->GetSupportFiles().GetFileSpecAtIndex(decl_file),
1408 decl_line, decl_column));
1410 std::unique_ptr<Declaration> call_ap;
1411 if (call_file != 0 || call_line != 0 || call_column != 0)
1412 call_ap.reset(new Declaration(sc.comp_unit->GetSupportFiles().GetFileSpecAtIndex(call_file),
1413 call_line, call_column));
1415 block->SetInlinedFunctionInfo (name, mangled_name, decl_ap.get(), call_ap.get());
1420 if (die->HasChildren())
1422 blocks_added += ParseFunctionBlocks (sc,
1425 die->GetFirstChild(),
1436 // Only parse siblings of the block if we are not at depth zero. A depth
1437 // of zero indicates we are currently parsing the top level
1438 // DW_TAG_subprogram DIE
1443 die = die->GetSibling();
1445 return blocks_added;
1449 SymbolFileDWARF::ParseTemplateDIE (DWARFCompileUnit* dwarf_cu,
1450 const DWARFDebugInfoEntry *die,
1451 ClangASTContext::TemplateParameterInfos &template_param_infos)
1453 const dw_tag_t tag = die->Tag();
1457 case DW_TAG_template_type_parameter:
1458 case DW_TAG_template_value_parameter:
1460 const uint8_t *fixed_form_sizes = DWARFFormValue::GetFixedFormSizesForAddressSize (dwarf_cu->GetAddressByteSize(), dwarf_cu->IsDWARF64());
1462 DWARFDebugInfoEntry::Attributes attributes;
1463 const size_t num_attributes = die->GetAttributes (this,
1467 const char *name = NULL;
1468 Type *lldb_type = NULL;
1469 ClangASTType clang_type;
1470 uint64_t uval64 = 0;
1471 bool uval64_valid = false;
1472 if (num_attributes > 0)
1474 DWARFFormValue form_value;
1475 for (size_t i=0; i<num_attributes; ++i)
1477 const dw_attr_t attr = attributes.AttributeAtIndex(i);
1482 if (attributes.ExtractFormValueAtIndex(this, i, form_value))
1483 name = form_value.AsCString(&get_debug_str_data());
1487 if (attributes.ExtractFormValueAtIndex(this, i, form_value))
1489 const dw_offset_t type_die_offset = form_value.Reference();
1490 lldb_type = ResolveTypeUID(type_die_offset);
1492 clang_type = lldb_type->GetClangForwardType();
1496 case DW_AT_const_value:
1497 if (attributes.ExtractFormValueAtIndex(this, i, form_value))
1499 uval64_valid = true;
1500 uval64 = form_value.Unsigned();
1508 clang::ASTContext *ast = GetClangASTContext().getASTContext();
1510 clang_type = GetClangASTContext().GetBasicType(eBasicTypeVoid);
1514 bool is_signed = false;
1515 if (name && name[0])
1516 template_param_infos.names.push_back(name);
1518 template_param_infos.names.push_back(NULL);
1520 if (tag == DW_TAG_template_value_parameter &&
1521 lldb_type != NULL &&
1522 clang_type.IsIntegerType (is_signed) &&
1525 llvm::APInt apint (lldb_type->GetByteSize() * 8, uval64, is_signed);
1526 template_param_infos.args.push_back (clang::TemplateArgument (*ast,
1527 llvm::APSInt(apint),
1528 clang_type.GetQualType()));
1532 template_param_infos.args.push_back (clang::TemplateArgument (clang_type.GetQualType()));
1551 SymbolFileDWARF::ParseTemplateParameterInfos (DWARFCompileUnit* dwarf_cu,
1552 const DWARFDebugInfoEntry *parent_die,
1553 ClangASTContext::TemplateParameterInfos &template_param_infos)
1556 if (parent_die == NULL)
1559 Args template_parameter_names;
1560 for (const DWARFDebugInfoEntry *die = parent_die->GetFirstChild();
1562 die = die->GetSibling())
1564 const dw_tag_t tag = die->Tag();
1568 case DW_TAG_template_type_parameter:
1569 case DW_TAG_template_value_parameter:
1570 ParseTemplateDIE (dwarf_cu, die, template_param_infos);
1577 if (template_param_infos.args.empty())
1579 return template_param_infos.args.size() == template_param_infos.names.size();
1582 clang::ClassTemplateDecl *
1583 SymbolFileDWARF::ParseClassTemplateDecl (clang::DeclContext *decl_ctx,
1584 lldb::AccessType access_type,
1585 const char *parent_name,
1587 const ClangASTContext::TemplateParameterInfos &template_param_infos)
1589 if (template_param_infos.IsValid())
1591 std::string template_basename(parent_name);
1592 template_basename.erase (template_basename.find('<'));
1593 ClangASTContext &ast = GetClangASTContext();
1595 return ast.CreateClassTemplateDecl (decl_ctx,
1597 template_basename.c_str(),
1599 template_param_infos);
1604 class SymbolFileDWARF::DelayedAddObjCClassProperty
1607 DelayedAddObjCClassProperty
1609 const ClangASTType &class_opaque_type,
1610 const char *property_name,
1611 const ClangASTType &property_opaque_type, // The property type is only required if you don't have an ivar decl
1612 clang::ObjCIvarDecl *ivar_decl,
1613 const char *property_setter_name,
1614 const char *property_getter_name,
1615 uint32_t property_attributes,
1616 const ClangASTMetadata *metadata
1618 m_class_opaque_type (class_opaque_type),
1619 m_property_name (property_name),
1620 m_property_opaque_type (property_opaque_type),
1621 m_ivar_decl (ivar_decl),
1622 m_property_setter_name (property_setter_name),
1623 m_property_getter_name (property_getter_name),
1624 m_property_attributes (property_attributes)
1626 if (metadata != NULL)
1628 m_metadata_ap.reset(new ClangASTMetadata());
1629 *m_metadata_ap = *metadata;
1633 DelayedAddObjCClassProperty (const DelayedAddObjCClassProperty &rhs)
1638 DelayedAddObjCClassProperty& operator= (const DelayedAddObjCClassProperty &rhs)
1640 m_class_opaque_type = rhs.m_class_opaque_type;
1641 m_property_name = rhs.m_property_name;
1642 m_property_opaque_type = rhs.m_property_opaque_type;
1643 m_ivar_decl = rhs.m_ivar_decl;
1644 m_property_setter_name = rhs.m_property_setter_name;
1645 m_property_getter_name = rhs.m_property_getter_name;
1646 m_property_attributes = rhs.m_property_attributes;
1648 if (rhs.m_metadata_ap.get())
1650 m_metadata_ap.reset (new ClangASTMetadata());
1651 *m_metadata_ap = *rhs.m_metadata_ap;
1659 return m_class_opaque_type.AddObjCClassProperty (m_property_name,
1660 m_property_opaque_type,
1662 m_property_setter_name,
1663 m_property_getter_name,
1664 m_property_attributes,
1665 m_metadata_ap.get());
1668 ClangASTType m_class_opaque_type;
1669 const char *m_property_name;
1670 ClangASTType m_property_opaque_type;
1671 clang::ObjCIvarDecl *m_ivar_decl;
1672 const char *m_property_setter_name;
1673 const char *m_property_getter_name;
1674 uint32_t m_property_attributes;
1675 std::unique_ptr<ClangASTMetadata> m_metadata_ap;
1681 uint64_t bit_offset;
1684 bit_size (LLDB_INVALID_ADDRESS),
1685 bit_offset (LLDB_INVALID_ADDRESS)
1692 bit_size = LLDB_INVALID_ADDRESS;
1693 bit_offset = LLDB_INVALID_ADDRESS;
1698 return (bit_size != LLDB_INVALID_ADDRESS) &&
1699 (bit_offset != LLDB_INVALID_ADDRESS);
1705 SymbolFileDWARF::ClassOrStructIsVirtual (DWARFCompileUnit* dwarf_cu,
1706 const DWARFDebugInfoEntry *parent_die)
1710 for (const DWARFDebugInfoEntry *die = parent_die->GetFirstChild(); die != NULL; die = die->GetSibling())
1712 dw_tag_t tag = die->Tag();
1713 bool check_virtuality = false;
1716 case DW_TAG_inheritance:
1717 case DW_TAG_subprogram:
1718 check_virtuality = true;
1723 if (check_virtuality)
1725 if (die->GetAttributeValueAsUnsigned(this, dwarf_cu, DW_AT_virtuality, 0) != 0)
1734 SymbolFileDWARF::ParseChildMembers
1736 const SymbolContext& sc,
1737 DWARFCompileUnit* dwarf_cu,
1738 const DWARFDebugInfoEntry *parent_die,
1739 ClangASTType &class_clang_type,
1740 const LanguageType class_language,
1741 std::vector<clang::CXXBaseSpecifier *>& base_classes,
1742 std::vector<int>& member_accessibilities,
1743 DWARFDIECollection& member_function_dies,
1744 DelayedPropertyList& delayed_properties,
1745 AccessType& default_accessibility,
1747 LayoutInfo &layout_info
1750 if (parent_die == NULL)
1754 const DWARFDebugInfoEntry *die;
1755 const uint8_t *fixed_form_sizes = DWARFFormValue::GetFixedFormSizesForAddressSize (dwarf_cu->GetAddressByteSize(), dwarf_cu->IsDWARF64());
1756 uint32_t member_idx = 0;
1757 BitfieldInfo last_field_info;
1758 ModuleSP module = GetObjectFile()->GetModule();
1760 for (die = parent_die->GetFirstChild(); die != NULL; die = die->GetSibling())
1762 dw_tag_t tag = die->Tag();
1767 case DW_TAG_APPLE_property:
1769 DWARFDebugInfoEntry::Attributes attributes;
1770 const size_t num_attributes = die->GetAttributes (this,
1774 if (num_attributes > 0)
1777 //DWARFExpression location;
1778 const char *name = NULL;
1779 const char *prop_name = NULL;
1780 const char *prop_getter_name = NULL;
1781 const char *prop_setter_name = NULL;
1782 uint32_t prop_attributes = 0;
1785 bool is_artificial = false;
1786 lldb::user_id_t encoding_uid = LLDB_INVALID_UID;
1787 AccessType accessibility = eAccessNone;
1788 uint32_t member_byte_offset = UINT32_MAX;
1789 size_t byte_size = 0;
1790 size_t bit_offset = 0;
1791 size_t bit_size = 0;
1792 bool is_external = false; // On DW_TAG_members, this means the member is static
1794 for (i=0; i<num_attributes && !is_artificial; ++i)
1796 const dw_attr_t attr = attributes.AttributeAtIndex(i);
1797 DWARFFormValue form_value;
1798 if (attributes.ExtractFormValueAtIndex(this, i, form_value))
1802 case DW_AT_decl_file: decl.SetFile(sc.comp_unit->GetSupportFiles().GetFileSpecAtIndex(form_value.Unsigned())); break;
1803 case DW_AT_decl_line: decl.SetLine(form_value.Unsigned()); break;
1804 case DW_AT_decl_column: decl.SetColumn(form_value.Unsigned()); break;
1805 case DW_AT_name: name = form_value.AsCString(&get_debug_str_data()); break;
1806 case DW_AT_type: encoding_uid = form_value.Reference(); break;
1807 case DW_AT_bit_offset: bit_offset = form_value.Unsigned(); break;
1808 case DW_AT_bit_size: bit_size = form_value.Unsigned(); break;
1809 case DW_AT_byte_size: byte_size = form_value.Unsigned(); break;
1810 case DW_AT_data_member_location:
1811 if (form_value.BlockData())
1813 Value initialValue(0);
1814 Value memberOffset(0);
1815 const DWARFDataExtractor& debug_info_data = get_debug_info_data();
1816 uint32_t block_length = form_value.Unsigned();
1817 uint32_t block_offset = form_value.BlockData() - debug_info_data.GetDataStart();
1818 if (DWARFExpression::Evaluate(NULL, // ExecutionContext *
1819 NULL, // ClangExpressionVariableList *
1820 NULL, // ClangExpressionDeclMap *
1821 NULL, // RegisterContext *
1831 member_byte_offset = memberOffset.ResolveValue(NULL).UInt();
1836 // With DWARF 3 and later, if the value is an integer constant,
1837 // this form value is the offset in bytes from the beginning
1838 // of the containing entity.
1839 member_byte_offset = form_value.Unsigned();
1843 case DW_AT_accessibility: accessibility = DW_ACCESS_to_AccessType (form_value.Unsigned()); break;
1844 case DW_AT_artificial: is_artificial = form_value.Boolean(); break;
1845 case DW_AT_APPLE_property_name: prop_name = form_value.AsCString(&get_debug_str_data()); break;
1846 case DW_AT_APPLE_property_getter: prop_getter_name = form_value.AsCString(&get_debug_str_data()); break;
1847 case DW_AT_APPLE_property_setter: prop_setter_name = form_value.AsCString(&get_debug_str_data()); break;
1848 case DW_AT_APPLE_property_attribute: prop_attributes = form_value.Unsigned(); break;
1849 case DW_AT_external: is_external = form_value.Boolean(); break;
1852 case DW_AT_declaration:
1853 case DW_AT_description:
1855 case DW_AT_visibility:
1864 ConstString fixed_getter;
1865 ConstString fixed_setter;
1867 // Check if the property getter/setter were provided as full
1868 // names. We want basenames, so we extract them.
1870 if (prop_getter_name && prop_getter_name[0] == '-')
1872 ObjCLanguageRuntime::MethodName prop_getter_method(prop_getter_name, true);
1873 prop_getter_name = prop_getter_method.GetSelector().GetCString();
1876 if (prop_setter_name && prop_setter_name[0] == '-')
1878 ObjCLanguageRuntime::MethodName prop_setter_method(prop_setter_name, true);
1879 prop_setter_name = prop_setter_method.GetSelector().GetCString();
1882 // If the names haven't been provided, they need to be
1885 if (!prop_getter_name)
1887 prop_getter_name = prop_name;
1889 if (!prop_setter_name && prop_name[0] && !(prop_attributes & DW_APPLE_PROPERTY_readonly))
1893 ss.Printf("set%c%s:",
1894 toupper(prop_name[0]),
1897 fixed_setter.SetCString(ss.GetData());
1898 prop_setter_name = fixed_setter.GetCString();
1902 // Clang has a DWARF generation bug where sometimes it
1903 // represents fields that are references with bad byte size
1904 // and bit size/offset information such as:
1906 // DW_AT_byte_size( 0x00 )
1907 // DW_AT_bit_size( 0x40 )
1908 // DW_AT_bit_offset( 0xffffffffffffffc0 )
1910 // So check the bit offset to make sure it is sane, and if
1911 // the values are not sane, remove them. If we don't do this
1912 // then we will end up with a crash if we try to use this
1913 // type in an expression when clang becomes unhappy with its
1914 // recycled debug info.
1916 if (bit_offset > 128)
1922 // FIXME: Make Clang ignore Objective-C accessibility for expressions
1923 if (class_language == eLanguageTypeObjC ||
1924 class_language == eLanguageTypeObjC_plus_plus)
1925 accessibility = eAccessNone;
1927 if (member_idx == 0 && !is_artificial && name && (strstr (name, "_vptr$") == name))
1929 // Not all compilers will mark the vtable pointer
1930 // member as artificial (llvm-gcc). We can't have
1931 // the virtual members in our classes otherwise it
1932 // throws off all child offsets since we end up
1933 // having and extra pointer sized member in our
1935 is_artificial = true;
1938 // Handle static members
1939 if (is_external && member_byte_offset == UINT32_MAX)
1941 Type *var_type = ResolveTypeUID(encoding_uid);
1945 if (accessibility == eAccessNone)
1946 accessibility = eAccessPublic;
1947 class_clang_type.AddVariableToRecordType (name,
1948 var_type->GetClangLayoutType(),
1954 if (is_artificial == false)
1956 Type *member_type = ResolveTypeUID(encoding_uid);
1958 clang::FieldDecl *field_decl = NULL;
1959 if (tag == DW_TAG_member)
1963 if (accessibility == eAccessNone)
1964 accessibility = default_accessibility;
1965 member_accessibilities.push_back(accessibility);
1967 uint64_t field_bit_offset = (member_byte_offset == UINT32_MAX ? 0 : (member_byte_offset * 8));
1971 BitfieldInfo this_field_info;
1972 this_field_info.bit_offset = field_bit_offset;
1973 this_field_info.bit_size = bit_size;
1975 /////////////////////////////////////////////////////////////
1976 // How to locate a field given the DWARF debug information
1978 // AT_byte_size indicates the size of the word in which the
1979 // bit offset must be interpreted.
1981 // AT_data_member_location indicates the byte offset of the
1982 // word from the base address of the structure.
1984 // AT_bit_offset indicates how many bits into the word
1985 // (according to the host endianness) the low-order bit of
1986 // the field starts. AT_bit_offset can be negative.
1988 // AT_bit_size indicates the size of the field in bits.
1989 /////////////////////////////////////////////////////////////
1992 byte_size = member_type->GetByteSize();
1994 if (GetObjectFile()->GetByteOrder() == eByteOrderLittle)
1996 this_field_info.bit_offset += byte_size * 8;
1997 this_field_info.bit_offset -= (bit_offset + bit_size);
2001 this_field_info.bit_offset += bit_offset;
2004 // Update the field bit offset we will report for layout
2005 field_bit_offset = this_field_info.bit_offset;
2007 // If the member to be emitted did not start on a character boundary and there is
2008 // empty space between the last field and this one, then we need to emit an
2009 // anonymous member filling up the space up to its start. There are three cases
2012 // 1 If the previous member ended on a character boundary, then we can emit an
2013 // anonymous member starting at the most recent character boundary.
2015 // 2 If the previous member did not end on a character boundary and the distance
2016 // from the end of the previous member to the current member is less than a
2017 // word width, then we can emit an anonymous member starting right after the
2018 // previous member and right before this member.
2020 // 3 If the previous member did not end on a character boundary and the distance
2021 // from the end of the previous member to the current member is greater than
2022 // or equal a word width, then we act as in Case 1.
2024 const uint64_t character_width = 8;
2025 const uint64_t word_width = 32;
2027 // Objective-C has invalid DW_AT_bit_offset values in older versions
2028 // of clang, so we have to be careful and only insert unnamed bitfields
2029 // if we have a new enough clang.
2030 bool detect_unnamed_bitfields = true;
2032 if (class_language == eLanguageTypeObjC || class_language == eLanguageTypeObjC_plus_plus)
2033 detect_unnamed_bitfields = dwarf_cu->Supports_unnamed_objc_bitfields ();
2035 if (detect_unnamed_bitfields)
2037 BitfieldInfo anon_field_info;
2039 if ((this_field_info.bit_offset % character_width) != 0) // not char aligned
2041 uint64_t last_field_end = 0;
2043 if (last_field_info.IsValid())
2044 last_field_end = last_field_info.bit_offset + last_field_info.bit_size;
2046 if (this_field_info.bit_offset != last_field_end)
2048 if (((last_field_end % character_width) == 0) || // case 1
2049 (this_field_info.bit_offset - last_field_end >= word_width)) // case 3
2051 anon_field_info.bit_size = this_field_info.bit_offset % character_width;
2052 anon_field_info.bit_offset = this_field_info.bit_offset - anon_field_info.bit_size;
2056 anon_field_info.bit_size = this_field_info.bit_offset - last_field_end;
2057 anon_field_info.bit_offset = last_field_end;
2062 if (anon_field_info.IsValid())
2064 clang::FieldDecl *unnamed_bitfield_decl = class_clang_type.AddFieldToRecordType (NULL,
2065 GetClangASTContext().GetBuiltinTypeForEncodingAndBitSize(eEncodingSint, word_width),
2067 anon_field_info.bit_size);
2069 layout_info.field_offsets.insert(std::make_pair(unnamed_bitfield_decl, anon_field_info.bit_offset));
2072 last_field_info = this_field_info;
2076 last_field_info.Clear();
2079 ClangASTType member_clang_type = member_type->GetClangLayoutType();
2082 // Older versions of clang emit array[0] and array[1] in the same way (<rdar://problem/12566646>).
2083 // If the current field is at the end of the structure, then there is definitely no room for extra
2084 // elements and we override the type to array[0].
2086 ClangASTType member_array_element_type;
2087 uint64_t member_array_size;
2088 bool member_array_is_incomplete;
2090 if (member_clang_type.IsArrayType(&member_array_element_type,
2092 &member_array_is_incomplete) &&
2093 !member_array_is_incomplete)
2095 uint64_t parent_byte_size = parent_die->GetAttributeValueAsUnsigned(this, dwarf_cu, DW_AT_byte_size, UINT64_MAX);
2097 if (member_byte_offset >= parent_byte_size)
2099 if (member_array_size != 1)
2101 GetObjectFile()->GetModule()->ReportError ("0x%8.8" PRIx64 ": DW_TAG_member '%s' refers to type 0x%8.8" PRIx64 " which extends beyond the bounds of 0x%8.8" PRIx64,
2102 MakeUserID(die->GetOffset()),
2105 MakeUserID(parent_die->GetOffset()));
2108 member_clang_type = GetClangASTContext().CreateArrayType(member_array_element_type, 0, false);
2113 field_decl = class_clang_type.AddFieldToRecordType (name,
2118 GetClangASTContext().SetMetadataAsUserID (field_decl, MakeUserID(die->GetOffset()));
2120 layout_info.field_offsets.insert(std::make_pair(field_decl, field_bit_offset));
2126 GetObjectFile()->GetModule()->ReportError ("0x%8.8" PRIx64 ": DW_TAG_member '%s' refers to type 0x%8.8" PRIx64 " which was unable to be parsed",
2127 MakeUserID(die->GetOffset()),
2131 GetObjectFile()->GetModule()->ReportError ("0x%8.8" PRIx64 ": DW_TAG_member refers to type 0x%8.8" PRIx64 " which was unable to be parsed",
2132 MakeUserID(die->GetOffset()),
2137 if (prop_name != NULL)
2139 clang::ObjCIvarDecl *ivar_decl = NULL;
2143 ivar_decl = clang::dyn_cast<clang::ObjCIvarDecl>(field_decl);
2144 assert (ivar_decl != NULL);
2147 ClangASTMetadata metadata;
2148 metadata.SetUserID (MakeUserID(die->GetOffset()));
2149 delayed_properties.push_back(DelayedAddObjCClassProperty(class_clang_type,
2151 member_type->GetClangLayoutType(),
2159 GetClangASTContext().SetMetadataAsUserID (ivar_decl, MakeUserID(die->GetOffset()));
2167 case DW_TAG_subprogram:
2168 // Let the type parsing code handle this one for us.
2169 member_function_dies.Append (die);
2172 case DW_TAG_inheritance:
2175 if (default_accessibility == eAccessNone)
2176 default_accessibility = eAccessPrivate;
2177 // TODO: implement DW_TAG_inheritance type parsing
2178 DWARFDebugInfoEntry::Attributes attributes;
2179 const size_t num_attributes = die->GetAttributes (this,
2183 if (num_attributes > 0)
2186 DWARFExpression location;
2187 lldb::user_id_t encoding_uid = LLDB_INVALID_UID;
2188 AccessType accessibility = default_accessibility;
2189 bool is_virtual = false;
2190 bool is_base_of_class = true;
2191 off_t member_byte_offset = 0;
2193 for (i=0; i<num_attributes; ++i)
2195 const dw_attr_t attr = attributes.AttributeAtIndex(i);
2196 DWARFFormValue form_value;
2197 if (attributes.ExtractFormValueAtIndex(this, i, form_value))
2201 case DW_AT_decl_file: decl.SetFile(sc.comp_unit->GetSupportFiles().GetFileSpecAtIndex(form_value.Unsigned())); break;
2202 case DW_AT_decl_line: decl.SetLine(form_value.Unsigned()); break;
2203 case DW_AT_decl_column: decl.SetColumn(form_value.Unsigned()); break;
2204 case DW_AT_type: encoding_uid = form_value.Reference(); break;
2205 case DW_AT_data_member_location:
2206 if (form_value.BlockData())
2208 Value initialValue(0);
2209 Value memberOffset(0);
2210 const DWARFDataExtractor& debug_info_data = get_debug_info_data();
2211 uint32_t block_length = form_value.Unsigned();
2212 uint32_t block_offset = form_value.BlockData() - debug_info_data.GetDataStart();
2213 if (DWARFExpression::Evaluate (NULL,
2226 member_byte_offset = memberOffset.ResolveValue(NULL).UInt();
2231 // With DWARF 3 and later, if the value is an integer constant,
2232 // this form value is the offset in bytes from the beginning
2233 // of the containing entity.
2234 member_byte_offset = form_value.Unsigned();
2238 case DW_AT_accessibility:
2239 accessibility = DW_ACCESS_to_AccessType(form_value.Unsigned());
2242 case DW_AT_virtuality:
2243 is_virtual = form_value.Boolean();
2255 Type *base_class_type = ResolveTypeUID(encoding_uid);
2256 assert(base_class_type);
2258 ClangASTType base_class_clang_type = base_class_type->GetClangFullType();
2259 assert (base_class_clang_type);
2260 if (class_language == eLanguageTypeObjC)
2262 class_clang_type.SetObjCSuperClass(base_class_clang_type);
2266 base_classes.push_back (base_class_clang_type.CreateBaseClassSpecifier (accessibility,
2272 // Do not specify any offset for virtual inheritance. The DWARF produced by clang doesn't
2273 // give us a constant offset, but gives us a DWARF expressions that requires an actual object
2274 // in memory. the DW_AT_data_member_location for a virtual base class looks like:
2275 // DW_AT_data_member_location( DW_OP_dup, DW_OP_deref, DW_OP_constu(0x00000018), DW_OP_minus, DW_OP_deref, DW_OP_plus )
2276 // Given this, there is really no valid response we can give to clang for virtual base
2277 // class offsets, and this should eventually be removed from LayoutRecordType() in the external
2278 // AST source in clang.
2282 layout_info.base_offsets.insert(std::make_pair(base_class_clang_type.GetAsCXXRecordDecl(),
2283 clang::CharUnits::fromQuantity(member_byte_offset)));
2300 SymbolFileDWARF::GetClangDeclContextContainingTypeUID (lldb::user_id_t type_uid)
2302 DWARFDebugInfo* debug_info = DebugInfo();
2303 if (debug_info && UserIDMatches(type_uid))
2305 DWARFCompileUnitSP cu_sp;
2306 const DWARFDebugInfoEntry* die = debug_info->GetDIEPtr(type_uid, &cu_sp);
2308 return GetClangDeclContextContainingDIE (cu_sp.get(), die, NULL);
2314 SymbolFileDWARF::GetClangDeclContextForTypeUID (const lldb_private::SymbolContext &sc, lldb::user_id_t type_uid)
2316 if (UserIDMatches(type_uid))
2317 return GetClangDeclContextForDIEOffset (sc, type_uid);
2322 SymbolFileDWARF::ResolveTypeUID (lldb::user_id_t type_uid)
2324 if (UserIDMatches(type_uid))
2326 DWARFDebugInfo* debug_info = DebugInfo();
2329 DWARFCompileUnitSP cu_sp;
2330 const DWARFDebugInfoEntry* type_die = debug_info->GetDIEPtr(type_uid, &cu_sp);
2331 const bool assert_not_being_parsed = true;
2332 return ResolveTypeUID (cu_sp.get(), type_die, assert_not_being_parsed);
2339 SymbolFileDWARF::ResolveTypeUID (DWARFCompileUnit* cu, const DWARFDebugInfoEntry* die, bool assert_not_being_parsed)
2343 Log *log (LogChannelDWARF::GetLogIfAll(DWARF_LOG_DEBUG_INFO));
2345 GetObjectFile()->GetModule()->LogMessage (log,
2346 "SymbolFileDWARF::ResolveTypeUID (die = 0x%8.8x) %s '%s'",
2348 DW_TAG_value_to_name(die->Tag()),
2349 die->GetName(this, cu));
2351 // We might be coming in in the middle of a type tree (a class
2352 // withing a class, an enum within a class), so parse any needed
2353 // parent DIEs before we get to this one...
2354 const DWARFDebugInfoEntry *decl_ctx_die = GetDeclContextDIEContainingDIE (cu, die);
2355 switch (decl_ctx_die->Tag())
2357 case DW_TAG_structure_type:
2358 case DW_TAG_union_type:
2359 case DW_TAG_class_type:
2361 // Get the type, which could be a forward declaration
2363 GetObjectFile()->GetModule()->LogMessage (log,
2364 "SymbolFileDWARF::ResolveTypeUID (die = 0x%8.8x) %s '%s' resolve parent forward type for 0x%8.8x",
2366 DW_TAG_value_to_name(die->Tag()),
2367 die->GetName(this, cu),
2368 decl_ctx_die->GetOffset());
2370 // Type *parent_type = ResolveTypeUID (cu, decl_ctx_die, assert_not_being_parsed);
2371 // if (child_requires_parent_class_union_or_struct_to_be_completed(die->Tag()))
2374 // GetObjectFile()->GetModule()->LogMessage (log,
2375 // "SymbolFileDWARF::ResolveTypeUID (die = 0x%8.8x) %s '%s' resolve parent full type for 0x%8.8x since die is a function",
2376 // die->GetOffset(),
2377 // DW_TAG_value_to_name(die->Tag()),
2378 // die->GetName(this, cu),
2379 // decl_ctx_die->GetOffset());
2380 // // Ask the type to complete itself if it already hasn't since if we
2381 // // want a function (method or static) from a class, the class must
2382 // // create itself and add it's own methods and class functions.
2384 // parent_type->GetClangFullType();
2392 return ResolveType (cu, die);
2397 // This function is used when SymbolFileDWARFDebugMap owns a bunch of
2398 // SymbolFileDWARF objects to detect if this DWARF file is the one that
2399 // can resolve a clang_type.
2401 SymbolFileDWARF::HasForwardDeclForClangType (const ClangASTType &clang_type)
2403 ClangASTType clang_type_no_qualifiers = clang_type.RemoveFastQualifiers();
2404 const DWARFDebugInfoEntry* die = m_forward_decl_clang_type_to_die.lookup (clang_type_no_qualifiers.GetOpaqueQualType());
2410 SymbolFileDWARF::ResolveClangOpaqueTypeDefinition (ClangASTType &clang_type)
2412 // We have a struct/union/class/enum that needs to be fully resolved.
2413 ClangASTType clang_type_no_qualifiers = clang_type.RemoveFastQualifiers();
2414 const DWARFDebugInfoEntry* die = m_forward_decl_clang_type_to_die.lookup (clang_type_no_qualifiers.GetOpaqueQualType());
2417 // We have already resolved this type...
2420 // Once we start resolving this type, remove it from the forward declaration
2421 // map in case anyone child members or other types require this type to get resolved.
2422 // The type will get resolved when all of the calls to SymbolFileDWARF::ResolveClangOpaqueTypeDefinition
2424 m_forward_decl_clang_type_to_die.erase (clang_type_no_qualifiers.GetOpaqueQualType());
2426 // Disable external storage for this type so we don't get anymore
2427 // clang::ExternalASTSource queries for this type.
2428 clang_type.SetHasExternalStorage (false);
2430 DWARFDebugInfo* debug_info = DebugInfo();
2432 DWARFCompileUnit *dwarf_cu = debug_info->GetCompileUnitContainingDIE (die->GetOffset()).get();
2433 Type *type = m_die_to_type.lookup (die);
2435 const dw_tag_t tag = die->Tag();
2437 Log *log (LogChannelDWARF::GetLogIfAny(DWARF_LOG_DEBUG_INFO|DWARF_LOG_TYPE_COMPLETION));
2439 GetObjectFile()->GetModule()->LogMessageVerboseBacktrace (log,
2440 "0x%8.8" PRIx64 ": %s '%s' resolving forward declaration...",
2441 MakeUserID(die->GetOffset()),
2442 DW_TAG_value_to_name(tag),
2443 type->GetName().AsCString());
2444 assert (clang_type);
2445 DWARFDebugInfoEntry::Attributes attributes;
2449 case DW_TAG_structure_type:
2450 case DW_TAG_union_type:
2451 case DW_TAG_class_type:
2453 LayoutInfo layout_info;
2456 if (die->HasChildren())
2458 LanguageType class_language = eLanguageTypeUnknown;
2459 if (clang_type.IsObjCObjectOrInterfaceType())
2461 class_language = eLanguageTypeObjC;
2462 // For objective C we don't start the definition when
2463 // the class is created.
2464 clang_type.StartTagDeclarationDefinition ();
2467 int tag_decl_kind = -1;
2468 AccessType default_accessibility = eAccessNone;
2469 if (tag == DW_TAG_structure_type)
2471 tag_decl_kind = clang::TTK_Struct;
2472 default_accessibility = eAccessPublic;
2474 else if (tag == DW_TAG_union_type)
2476 tag_decl_kind = clang::TTK_Union;
2477 default_accessibility = eAccessPublic;
2479 else if (tag == DW_TAG_class_type)
2481 tag_decl_kind = clang::TTK_Class;
2482 default_accessibility = eAccessPrivate;
2485 SymbolContext sc(GetCompUnitForDWARFCompUnit(dwarf_cu));
2486 std::vector<clang::CXXBaseSpecifier *> base_classes;
2487 std::vector<int> member_accessibilities;
2488 bool is_a_class = false;
2489 // Parse members and base classes first
2490 DWARFDIECollection member_function_dies;
2492 DelayedPropertyList delayed_properties;
2493 ParseChildMembers (sc,
2499 member_accessibilities,
2500 member_function_dies,
2502 default_accessibility,
2506 // Now parse any methods if there were any...
2507 size_t num_functions = member_function_dies.Size();
2508 if (num_functions > 0)
2510 for (size_t i=0; i<num_functions; ++i)
2512 ResolveType(dwarf_cu, member_function_dies.GetDIEPtrAtIndex(i));
2516 if (class_language == eLanguageTypeObjC)
2518 ConstString class_name (clang_type.GetTypeName());
2521 DIEArray method_die_offsets;
2522 if (m_using_apple_tables)
2524 if (m_apple_objc_ap.get())
2525 m_apple_objc_ap->FindByName(class_name.GetCString(), method_die_offsets);
2532 m_objc_class_selectors_index.Find (class_name, method_die_offsets);
2535 if (!method_die_offsets.empty())
2537 DWARFDebugInfo* debug_info = DebugInfo();
2539 DWARFCompileUnit* method_cu = NULL;
2540 const size_t num_matches = method_die_offsets.size();
2541 for (size_t i=0; i<num_matches; ++i)
2543 const dw_offset_t die_offset = method_die_offsets[i];
2544 DWARFDebugInfoEntry *method_die = debug_info->GetDIEPtrWithCompileUnitHint (die_offset, &method_cu);
2547 ResolveType (method_cu, method_die);
2550 if (m_using_apple_tables)
2552 GetObjectFile()->GetModule()->ReportErrorIfModifyDetected ("the DWARF debug information has been modified (.apple_objc accelerator table had bad die 0x%8.8x for '%s')\n",
2553 die_offset, class_name.GetCString());
2559 for (DelayedPropertyList::iterator pi = delayed_properties.begin(), pe = delayed_properties.end();
2566 // If we have a DW_TAG_structure_type instead of a DW_TAG_class_type we
2567 // need to tell the clang type it is actually a class.
2568 if (class_language != eLanguageTypeObjC)
2570 if (is_a_class && tag_decl_kind != clang::TTK_Class)
2571 clang_type.SetTagTypeKind (clang::TTK_Class);
2574 // Since DW_TAG_structure_type gets used for both classes
2575 // and structures, we may need to set any DW_TAG_member
2576 // fields to have a "private" access if none was specified.
2577 // When we parsed the child members we tracked that actual
2578 // accessibility value for each DW_TAG_member in the
2579 // "member_accessibilities" array. If the value for the
2580 // member is zero, then it was set to the "default_accessibility"
2581 // which for structs was "public". Below we correct this
2582 // by setting any fields to "private" that weren't correctly
2584 if (is_a_class && !member_accessibilities.empty())
2586 // This is a class and all members that didn't have
2587 // their access specified are private.
2588 clang_type.SetDefaultAccessForRecordFields (eAccessPrivate,
2589 &member_accessibilities.front(),
2590 member_accessibilities.size());
2593 if (!base_classes.empty())
2595 // Make sure all base classes refer to complete types and not
2596 // forward declarations. If we don't do this, clang will crash
2597 // with an assertion in the call to clang_type.SetBaseClassesForClassType()
2598 bool base_class_error = false;
2599 for (auto &base_class : base_classes)
2601 clang::TypeSourceInfo *type_source_info = base_class->getTypeSourceInfo();
2602 if (type_source_info)
2604 ClangASTType base_class_type (GetClangASTContext().getASTContext(), type_source_info->getType());
2605 if (base_class_type.GetCompleteType() == false)
2607 if (!base_class_error)
2609 GetObjectFile()->GetModule()->ReportError ("DWARF DIE at 0x%8.8x for class '%s' has a base class '%s' that is a forward declaration, not a complete definition.\nPlease file a bug against the compiler and include the preprocessed output for %s",
2611 die->GetName(this, dwarf_cu),
2612 base_class_type.GetTypeName().GetCString(),
2613 sc.comp_unit ? sc.comp_unit->GetPath().c_str() : "the source file");
2615 // We have no choice other than to pretend that the base class
2616 // is complete. If we don't do this, clang will crash when we
2617 // call setBases() inside of "clang_type.SetBaseClassesForClassType()"
2618 // below. Since we provide layout assistance, all ivars in this
2619 // class and other classes will be fine, this is the best we can do
2620 // short of crashing.
2621 base_class_type.StartTagDeclarationDefinition ();
2622 base_class_type.CompleteTagDeclarationDefinition ();
2626 clang_type.SetBaseClassesForClassType (&base_classes.front(),
2627 base_classes.size());
2629 // Clang will copy each CXXBaseSpecifier in "base_classes"
2630 // so we have to free them all.
2631 ClangASTType::DeleteBaseClassSpecifiers (&base_classes.front(),
2632 base_classes.size());
2637 clang_type.BuildIndirectFields ();
2638 clang_type.CompleteTagDeclarationDefinition ();
2640 if (!layout_info.field_offsets.empty() ||
2641 !layout_info.base_offsets.empty() ||
2642 !layout_info.vbase_offsets.empty() )
2645 layout_info.bit_size = type->GetByteSize() * 8;
2646 if (layout_info.bit_size == 0)
2647 layout_info.bit_size = die->GetAttributeValueAsUnsigned(this, dwarf_cu, DW_AT_byte_size, 0) * 8;
2649 clang::CXXRecordDecl *record_decl = clang_type.GetAsCXXRecordDecl();
2654 GetObjectFile()->GetModule()->LogMessage (log,
2655 "SymbolFileDWARF::ResolveClangOpaqueTypeDefinition (clang_type = %p) caching layout info for record_decl = %p, bit_size = %" PRIu64 ", alignment = %" PRIu64 ", field_offsets[%u], base_offsets[%u], vbase_offsets[%u])",
2656 static_cast<void*>(clang_type.GetOpaqueQualType()),
2657 static_cast<void*>(record_decl),
2658 layout_info.bit_size,
2659 layout_info.alignment,
2660 static_cast<uint32_t>(layout_info.field_offsets.size()),
2661 static_cast<uint32_t>(layout_info.base_offsets.size()),
2662 static_cast<uint32_t>(layout_info.vbase_offsets.size()));
2666 llvm::DenseMap <const clang::FieldDecl *, uint64_t>::const_iterator pos, end = layout_info.field_offsets.end();
2667 for (idx = 0, pos = layout_info.field_offsets.begin(); pos != end; ++pos, ++idx)
2669 GetObjectFile()->GetModule()->LogMessage (log,
2670 "SymbolFileDWARF::ResolveClangOpaqueTypeDefinition (clang_type = %p) field[%u] = { bit_offset=%u, name='%s' }",
2671 static_cast<void*>(clang_type.GetOpaqueQualType()),
2673 static_cast<uint32_t>(pos->second),
2674 pos->first->getNameAsString().c_str());
2679 llvm::DenseMap <const clang::CXXRecordDecl *, clang::CharUnits>::const_iterator base_pos, base_end = layout_info.base_offsets.end();
2680 for (idx = 0, base_pos = layout_info.base_offsets.begin(); base_pos != base_end; ++base_pos, ++idx)
2682 GetObjectFile()->GetModule()->LogMessage (log,
2683 "SymbolFileDWARF::ResolveClangOpaqueTypeDefinition (clang_type = %p) base[%u] = { byte_offset=%u, name='%s' }",
2684 clang_type.GetOpaqueQualType(),
2686 (uint32_t)base_pos->second.getQuantity(),
2687 base_pos->first->getNameAsString().c_str());
2691 llvm::DenseMap <const clang::CXXRecordDecl *, clang::CharUnits>::const_iterator vbase_pos, vbase_end = layout_info.vbase_offsets.end();
2692 for (idx = 0, vbase_pos = layout_info.vbase_offsets.begin(); vbase_pos != vbase_end; ++vbase_pos, ++idx)
2694 GetObjectFile()->GetModule()->LogMessage (log,
2695 "SymbolFileDWARF::ResolveClangOpaqueTypeDefinition (clang_type = %p) vbase[%u] = { byte_offset=%u, name='%s' }",
2696 static_cast<void*>(clang_type.GetOpaqueQualType()),
2698 static_cast<uint32_t>(vbase_pos->second.getQuantity()),
2699 vbase_pos->first->getNameAsString().c_str());
2703 m_record_decl_to_layout_map.insert(std::make_pair(record_decl, layout_info));
2708 return (bool)clang_type;
2710 case DW_TAG_enumeration_type:
2711 clang_type.StartTagDeclarationDefinition ();
2712 if (die->HasChildren())
2714 SymbolContext sc(GetCompUnitForDWARFCompUnit(dwarf_cu));
2715 bool is_signed = false;
2716 clang_type.IsIntegerType(is_signed);
2717 ParseChildEnumerators(sc, clang_type, is_signed, type->GetByteSize(), dwarf_cu, die);
2719 clang_type.CompleteTagDeclarationDefinition ();
2720 return (bool)clang_type;
2723 assert(false && "not a forward clang type decl!");
2730 SymbolFileDWARF::ResolveType (DWARFCompileUnit* dwarf_cu, const DWARFDebugInfoEntry* type_die, bool assert_not_being_parsed)
2732 if (type_die != NULL)
2734 Type *type = m_die_to_type.lookup (type_die);
2737 type = GetTypeForDIE (dwarf_cu, type_die).get();
2739 if (assert_not_being_parsed)
2741 if (type != DIE_IS_BEING_PARSED)
2744 GetObjectFile()->GetModule()->ReportError ("Parsing a die that is being parsed die: 0x%8.8x: %s %s",
2745 type_die->GetOffset(),
2746 DW_TAG_value_to_name(type_die->Tag()),
2747 type_die->GetName(this, dwarf_cu));
2757 SymbolFileDWARF::GetCompUnitForDWARFCompUnit (DWARFCompileUnit* dwarf_cu, uint32_t cu_idx)
2759 // Check if the symbol vendor already knows about this compile unit?
2760 if (dwarf_cu->GetUserData() == NULL)
2762 // The symbol vendor doesn't know about this compile unit, we
2763 // need to parse and add it to the symbol vendor object.
2764 return ParseCompileUnit(dwarf_cu, cu_idx).get();
2766 return (CompileUnit*)dwarf_cu->GetUserData();
2770 SymbolFileDWARF::GetFunction (DWARFCompileUnit* dwarf_cu, const DWARFDebugInfoEntry* func_die, SymbolContext& sc)
2773 // Check if the symbol vendor already knows about this compile unit?
2774 sc.comp_unit = GetCompUnitForDWARFCompUnit(dwarf_cu, UINT32_MAX);
2776 sc.function = sc.comp_unit->FindFunctionByUID (MakeUserID(func_die->GetOffset())).get();
2777 if (sc.function == NULL)
2778 sc.function = ParseCompileUnitFunction(sc, dwarf_cu, func_die);
2782 sc.module_sp = sc.function->CalculateSymbolContextModule();
2790 SymbolFileDWARF::ResolveSymbolContext (const Address& so_addr, uint32_t resolve_scope, SymbolContext& sc)
2792 Timer scoped_timer(__PRETTY_FUNCTION__,
2793 "SymbolFileDWARF::ResolveSymbolContext (so_addr = { section = %p, offset = 0x%" PRIx64 " }, resolve_scope = 0x%8.8x)",
2794 static_cast<void*>(so_addr.GetSection().get()),
2795 so_addr.GetOffset(), resolve_scope);
2796 uint32_t resolved = 0;
2797 if (resolve_scope & ( eSymbolContextCompUnit |
2798 eSymbolContextFunction |
2799 eSymbolContextBlock |
2800 eSymbolContextLineEntry))
2802 lldb::addr_t file_vm_addr = so_addr.GetFileAddress();
2804 DWARFDebugInfo* debug_info = DebugInfo();
2807 const dw_offset_t cu_offset = debug_info->GetCompileUnitAranges().FindAddress(file_vm_addr);
2808 if (cu_offset != DW_INVALID_OFFSET)
2810 uint32_t cu_idx = DW_INVALID_INDEX;
2811 DWARFCompileUnit* dwarf_cu = debug_info->GetCompileUnit(cu_offset, &cu_idx).get();
2814 sc.comp_unit = GetCompUnitForDWARFCompUnit(dwarf_cu, cu_idx);
2817 resolved |= eSymbolContextCompUnit;
2819 bool force_check_line_table = false;
2820 if (resolve_scope & (eSymbolContextFunction | eSymbolContextBlock))
2822 DWARFDebugInfoEntry *function_die = NULL;
2823 DWARFDebugInfoEntry *block_die = NULL;
2824 if (resolve_scope & eSymbolContextBlock)
2826 dwarf_cu->LookupAddress(file_vm_addr, &function_die, &block_die);
2830 dwarf_cu->LookupAddress(file_vm_addr, &function_die, NULL);
2833 if (function_die != NULL)
2835 sc.function = sc.comp_unit->FindFunctionByUID (MakeUserID(function_die->GetOffset())).get();
2836 if (sc.function == NULL)
2837 sc.function = ParseCompileUnitFunction(sc, dwarf_cu, function_die);
2841 // We might have had a compile unit that had discontiguous
2842 // address ranges where the gaps are symbols that don't have
2843 // any debug info. Discontiguous compile unit address ranges
2844 // should only happen when there aren't other functions from
2845 // other compile units in these gaps. This helps keep the size
2846 // of the aranges down.
2847 force_check_line_table = true;
2850 if (sc.function != NULL)
2852 resolved |= eSymbolContextFunction;
2854 if (resolve_scope & eSymbolContextBlock)
2856 Block& block = sc.function->GetBlock (true);
2858 if (block_die != NULL)
2859 sc.block = block.FindBlockByID (MakeUserID(block_die->GetOffset()));
2861 sc.block = block.FindBlockByID (MakeUserID(function_die->GetOffset()));
2863 resolved |= eSymbolContextBlock;
2868 if ((resolve_scope & eSymbolContextLineEntry) || force_check_line_table)
2870 LineTable *line_table = sc.comp_unit->GetLineTable();
2871 if (line_table != NULL)
2873 // And address that makes it into this function should be in terms
2874 // of this debug file if there is no debug map, or it will be an
2875 // address in the .o file which needs to be fixed up to be in terms
2876 // of the debug map executable. Either way, calling FixupAddress()
2877 // will work for us.
2878 Address exe_so_addr (so_addr);
2879 if (FixupAddress(exe_so_addr))
2881 if (line_table->FindLineEntryByAddress (exe_so_addr, sc.line_entry))
2883 resolved |= eSymbolContextLineEntry;
2889 if (force_check_line_table && !(resolved & eSymbolContextLineEntry))
2891 // We might have had a compile unit that had discontiguous
2892 // address ranges where the gaps are symbols that don't have
2893 // any debug info. Discontiguous compile unit address ranges
2894 // should only happen when there aren't other functions from
2895 // other compile units in these gaps. This helps keep the size
2896 // of the aranges down.
2897 sc.comp_unit = NULL;
2898 resolved &= ~eSymbolContextCompUnit;
2903 GetObjectFile()->GetModule()->ReportWarning ("0x%8.8x: compile unit %u failed to create a valid lldb_private::CompileUnit class.",
2917 SymbolFileDWARF::ResolveSymbolContext(const FileSpec& file_spec, uint32_t line, bool check_inlines, uint32_t resolve_scope, SymbolContextList& sc_list)
2919 const uint32_t prev_size = sc_list.GetSize();
2920 if (resolve_scope & eSymbolContextCompUnit)
2922 DWARFDebugInfo* debug_info = DebugInfo();
2926 DWARFCompileUnit* dwarf_cu = NULL;
2928 for (cu_idx = 0; (dwarf_cu = debug_info->GetCompileUnitAtIndex(cu_idx)) != NULL; ++cu_idx)
2930 CompileUnit *dc_cu = GetCompUnitForDWARFCompUnit(dwarf_cu, cu_idx);
2931 const bool full_match = (bool)file_spec.GetDirectory();
2932 bool file_spec_matches_cu_file_spec = dc_cu != NULL && FileSpec::Equal(file_spec, *dc_cu, full_match);
2933 if (check_inlines || file_spec_matches_cu_file_spec)
2935 SymbolContext sc (m_obj_file->GetModule());
2936 sc.comp_unit = GetCompUnitForDWARFCompUnit(dwarf_cu, cu_idx);
2939 uint32_t file_idx = UINT32_MAX;
2941 // If we are looking for inline functions only and we don't
2942 // find it in the support files, we are done.
2945 file_idx = sc.comp_unit->GetSupportFiles().FindFileIndex (1, file_spec, true);
2946 if (file_idx == UINT32_MAX)
2952 LineTable *line_table = sc.comp_unit->GetLineTable();
2954 if (line_table != NULL && line != 0)
2956 // We will have already looked up the file index if
2957 // we are searching for inline entries.
2959 file_idx = sc.comp_unit->GetSupportFiles().FindFileIndex (1, file_spec, true);
2961 if (file_idx != UINT32_MAX)
2963 uint32_t found_line;
2964 uint32_t line_idx = line_table->FindLineEntryIndexByFileIndex (0, file_idx, line, false, &sc.line_entry);
2965 found_line = sc.line_entry.line;
2967 while (line_idx != UINT32_MAX)
2971 if (resolve_scope & (eSymbolContextFunction | eSymbolContextBlock))
2973 const lldb::addr_t file_vm_addr = sc.line_entry.range.GetBaseAddress().GetFileAddress();
2974 if (file_vm_addr != LLDB_INVALID_ADDRESS)
2976 DWARFDebugInfoEntry *function_die = NULL;
2977 DWARFDebugInfoEntry *block_die = NULL;
2978 dwarf_cu->LookupAddress(file_vm_addr, &function_die, resolve_scope & eSymbolContextBlock ? &block_die : NULL);
2980 if (function_die != NULL)
2982 sc.function = sc.comp_unit->FindFunctionByUID (MakeUserID(function_die->GetOffset())).get();
2983 if (sc.function == NULL)
2984 sc.function = ParseCompileUnitFunction(sc, dwarf_cu, function_die);
2987 if (sc.function != NULL)
2989 Block& block = sc.function->GetBlock (true);
2991 if (block_die != NULL)
2992 sc.block = block.FindBlockByID (MakeUserID(block_die->GetOffset()));
2993 else if (function_die != NULL)
2994 sc.block = block.FindBlockByID (MakeUserID(function_die->GetOffset()));
3000 line_idx = line_table->FindLineEntryIndexByFileIndex (line_idx + 1, file_idx, found_line, true, &sc.line_entry);
3004 else if (file_spec_matches_cu_file_spec && !check_inlines)
3006 // only append the context if we aren't looking for inline call sites
3007 // by file and line and if the file spec matches that of the compile unit
3011 else if (file_spec_matches_cu_file_spec && !check_inlines)
3013 // only append the context if we aren't looking for inline call sites
3014 // by file and line and if the file spec matches that of the compile unit
3025 return sc_list.GetSize() - prev_size;
3029 SymbolFileDWARF::Index ()
3034 Timer scoped_timer (__PRETTY_FUNCTION__,
3035 "SymbolFileDWARF::Index (%s)",
3036 GetObjectFile()->GetFileSpec().GetFilename().AsCString("<Unknown>"));
3038 DWARFDebugInfo* debug_info = DebugInfo();
3041 uint32_t cu_idx = 0;
3042 const uint32_t num_compile_units = GetNumCompileUnits();
3043 for (cu_idx = 0; cu_idx < num_compile_units; ++cu_idx)
3045 DWARFCompileUnit* dwarf_cu = debug_info->GetCompileUnitAtIndex(cu_idx);
3047 bool clear_dies = dwarf_cu->ExtractDIEsIfNeeded (false) > 1;
3049 dwarf_cu->Index (cu_idx,
3050 m_function_basename_index,
3051 m_function_fullname_index,
3052 m_function_method_index,
3053 m_function_selector_index,
3054 m_objc_class_selectors_index,
3059 // Keep memory down by clearing DIEs if this generate function
3060 // caused them to be parsed
3062 dwarf_cu->ClearDIEs (true);
3065 m_function_basename_index.Finalize();
3066 m_function_fullname_index.Finalize();
3067 m_function_method_index.Finalize();
3068 m_function_selector_index.Finalize();
3069 m_objc_class_selectors_index.Finalize();
3070 m_global_index.Finalize();
3071 m_type_index.Finalize();
3072 m_namespace_index.Finalize();
3074 #if defined (ENABLE_DEBUG_PRINTF)
3075 StreamFile s(stdout, false);
3076 s.Printf ("DWARF index for '%s':",
3077 GetObjectFile()->GetFileSpec().GetPath().c_str());
3078 s.Printf("\nFunction basenames:\n"); m_function_basename_index.Dump (&s);
3079 s.Printf("\nFunction fullnames:\n"); m_function_fullname_index.Dump (&s);
3080 s.Printf("\nFunction methods:\n"); m_function_method_index.Dump (&s);
3081 s.Printf("\nFunction selectors:\n"); m_function_selector_index.Dump (&s);
3082 s.Printf("\nObjective C class selectors:\n"); m_objc_class_selectors_index.Dump (&s);
3083 s.Printf("\nGlobals and statics:\n"); m_global_index.Dump (&s);
3084 s.Printf("\nTypes:\n"); m_type_index.Dump (&s);
3085 s.Printf("\nNamepaces:\n"); m_namespace_index.Dump (&s);
3091 SymbolFileDWARF::NamespaceDeclMatchesThisSymbolFile (const ClangNamespaceDecl *namespace_decl)
3093 if (namespace_decl == NULL)
3095 // Invalid namespace decl which means we aren't matching only things
3096 // in this symbol file, so return true to indicate it matches this
3101 clang::ASTContext *namespace_ast = namespace_decl->GetASTContext();
3103 if (namespace_ast == NULL)
3104 return true; // No AST in the "namespace_decl", return true since it
3105 // could then match any symbol file, including this one
3107 if (namespace_ast == GetClangASTContext().getASTContext())
3108 return true; // The ASTs match, return true
3110 // The namespace AST was valid, and it does not match...
3111 Log *log (LogChannelDWARF::GetLogIfAll(DWARF_LOG_LOOKUPS));
3114 GetObjectFile()->GetModule()->LogMessage(log, "Valid namespace does not match symbol file");
3120 SymbolFileDWARF::DIEIsInNamespace (const ClangNamespaceDecl *namespace_decl,
3121 DWARFCompileUnit* cu,
3122 const DWARFDebugInfoEntry* die)
3124 // No namespace specified, so the answer is
3125 if (namespace_decl == NULL)
3128 Log *log (LogChannelDWARF::GetLogIfAll(DWARF_LOG_LOOKUPS));
3130 const DWARFDebugInfoEntry *decl_ctx_die = NULL;
3131 clang::DeclContext *die_clang_decl_ctx = GetClangDeclContextContainingDIE (cu, die, &decl_ctx_die);
3134 clang::NamespaceDecl *clang_namespace_decl = namespace_decl->GetNamespaceDecl();
3136 if (clang_namespace_decl)
3138 if (decl_ctx_die->Tag() != DW_TAG_namespace)
3141 GetObjectFile()->GetModule()->LogMessage(log, "Found a match, but its parent is not a namespace");
3145 if (clang_namespace_decl == die_clang_decl_ctx)
3152 // We have a namespace_decl that was not NULL but it contained
3153 // a NULL "clang::NamespaceDecl", so this means the global namespace
3154 // So as long the contained decl context DIE isn't a namespace
3156 if (decl_ctx_die->Tag() != DW_TAG_namespace)
3162 GetObjectFile()->GetModule()->LogMessage(log, "Found a match, but its parent doesn't exist");
3167 SymbolFileDWARF::FindGlobalVariables (const ConstString &name, const lldb_private::ClangNamespaceDecl *namespace_decl, bool append, uint32_t max_matches, VariableList& variables)
3169 Log *log (LogChannelDWARF::GetLogIfAll(DWARF_LOG_LOOKUPS));
3172 GetObjectFile()->GetModule()->LogMessage (log,
3173 "SymbolFileDWARF::FindGlobalVariables (name=\"%s\", namespace_decl=%p, append=%u, max_matches=%u, variables)",
3175 static_cast<const void*>(namespace_decl),
3176 append, max_matches);
3178 if (!NamespaceDeclMatchesThisSymbolFile(namespace_decl))
3181 DWARFDebugInfo* info = DebugInfo();
3185 // If we aren't appending the results to this list, then clear the list
3189 // Remember how many variables are in the list before we search in case
3190 // we are appending the results to a variable list.
3191 const uint32_t original_size = variables.GetSize();
3193 DIEArray die_offsets;
3195 if (m_using_apple_tables)
3197 if (m_apple_names_ap.get())
3199 const char *name_cstr = name.GetCString();
3200 llvm::StringRef basename;
3201 llvm::StringRef context;
3203 if (!CPPLanguageRuntime::ExtractContextAndIdentifier(name_cstr, context, basename))
3204 basename = name_cstr;
3206 m_apple_names_ap->FindByName (basename.data(), die_offsets);
3211 // Index the DWARF if we haven't already
3215 m_global_index.Find (name, die_offsets);
3218 const size_t num_die_matches = die_offsets.size();
3219 if (num_die_matches)
3222 sc.module_sp = m_obj_file->GetModule();
3223 assert (sc.module_sp);
3225 DWARFDebugInfo* debug_info = DebugInfo();
3226 DWARFCompileUnit* dwarf_cu = NULL;
3227 const DWARFDebugInfoEntry* die = NULL;
3229 for (size_t i=0; i<num_die_matches && !done; ++i)
3231 const dw_offset_t die_offset = die_offsets[i];
3232 die = debug_info->GetDIEPtrWithCompileUnitHint (die_offset, &dwarf_cu);
3239 case DW_TAG_subprogram:
3240 case DW_TAG_inlined_subroutine:
3241 case DW_TAG_try_block:
3242 case DW_TAG_catch_block:
3245 case DW_TAG_variable:
3247 sc.comp_unit = GetCompUnitForDWARFCompUnit(dwarf_cu, UINT32_MAX);
3249 if (namespace_decl && !DIEIsInNamespace (namespace_decl, dwarf_cu, die))
3252 ParseVariables(sc, dwarf_cu, LLDB_INVALID_ADDRESS, die, false, false, &variables);
3254 if (variables.GetSize() - original_size >= max_matches)
3262 if (m_using_apple_tables)
3264 GetObjectFile()->GetModule()->ReportErrorIfModifyDetected ("the DWARF debug information has been modified (.apple_names accelerator table had bad die 0x%8.8x for '%s')\n",
3265 die_offset, name.GetCString());
3271 // Return the number of variable that were appended to the list
3272 const uint32_t num_matches = variables.GetSize() - original_size;
3273 if (log && num_matches > 0)
3275 GetObjectFile()->GetModule()->LogMessage (log,
3276 "SymbolFileDWARF::FindGlobalVariables (name=\"%s\", namespace_decl=%p, append=%u, max_matches=%u, variables) => %u",
3278 static_cast<const void*>(namespace_decl),
3279 append, max_matches,
3286 SymbolFileDWARF::FindGlobalVariables(const RegularExpression& regex, bool append, uint32_t max_matches, VariableList& variables)
3288 Log *log (LogChannelDWARF::GetLogIfAll(DWARF_LOG_LOOKUPS));
3292 GetObjectFile()->GetModule()->LogMessage (log,
3293 "SymbolFileDWARF::FindGlobalVariables (regex=\"%s\", append=%u, max_matches=%u, variables)",
3294 regex.GetText(), append,
3298 DWARFDebugInfo* info = DebugInfo();
3302 // If we aren't appending the results to this list, then clear the list
3306 // Remember how many variables are in the list before we search in case
3307 // we are appending the results to a variable list.
3308 const uint32_t original_size = variables.GetSize();
3310 DIEArray die_offsets;
3312 if (m_using_apple_tables)
3314 if (m_apple_names_ap.get())
3316 DWARFMappedHash::DIEInfoArray hash_data_array;
3317 if (m_apple_names_ap->AppendAllDIEsThatMatchingRegex (regex, hash_data_array))
3318 DWARFMappedHash::ExtractDIEArray (hash_data_array, die_offsets);
3323 // Index the DWARF if we haven't already
3327 m_global_index.Find (regex, die_offsets);
3331 sc.module_sp = m_obj_file->GetModule();
3332 assert (sc.module_sp);
3334 DWARFCompileUnit* dwarf_cu = NULL;
3335 const DWARFDebugInfoEntry* die = NULL;
3336 const size_t num_matches = die_offsets.size();
3339 DWARFDebugInfo* debug_info = DebugInfo();
3340 for (size_t i=0; i<num_matches; ++i)
3342 const dw_offset_t die_offset = die_offsets[i];
3343 die = debug_info->GetDIEPtrWithCompileUnitHint (die_offset, &dwarf_cu);
3347 sc.comp_unit = GetCompUnitForDWARFCompUnit(dwarf_cu, UINT32_MAX);
3349 ParseVariables(sc, dwarf_cu, LLDB_INVALID_ADDRESS, die, false, false, &variables);
3351 if (variables.GetSize() - original_size >= max_matches)
3356 if (m_using_apple_tables)
3358 GetObjectFile()->GetModule()->ReportErrorIfModifyDetected ("the DWARF debug information has been modified (.apple_names accelerator table had bad die 0x%8.8x for regex '%s')\n",
3359 die_offset, regex.GetText());
3365 // Return the number of variable that were appended to the list
3366 return variables.GetSize() - original_size;
3371 SymbolFileDWARF::ResolveFunction (dw_offset_t die_offset,
3372 DWARFCompileUnit *&dwarf_cu,
3373 SymbolContextList& sc_list)
3375 const DWARFDebugInfoEntry *die = DebugInfo()->GetDIEPtrWithCompileUnitHint (die_offset, &dwarf_cu);
3376 return ResolveFunction (dwarf_cu, die, sc_list);
3381 SymbolFileDWARF::ResolveFunction (DWARFCompileUnit *cu,
3382 const DWARFDebugInfoEntry *die,
3383 SymbolContextList& sc_list)
3390 // If we were passed a die that is not a function, just return false...
3391 if (die->Tag() != DW_TAG_subprogram && die->Tag() != DW_TAG_inlined_subroutine)
3394 const DWARFDebugInfoEntry* inlined_die = NULL;
3395 if (die->Tag() == DW_TAG_inlined_subroutine)
3399 while ((die = die->GetParent()) != NULL)
3401 if (die->Tag() == DW_TAG_subprogram)
3405 assert (die && die->Tag() == DW_TAG_subprogram);
3406 if (GetFunction (cu, die, sc))
3409 // Parse all blocks if needed
3412 sc.block = sc.function->GetBlock (true).FindBlockByID (MakeUserID(inlined_die->GetOffset()));
3413 assert (sc.block != NULL);
3414 if (sc.block->GetStartAddress (addr) == false)
3420 addr = sc.function->GetAddressRange().GetBaseAddress();
3434 SymbolFileDWARF::FindFunctions (const ConstString &name,
3435 const NameToDIE &name_to_die,
3436 SymbolContextList& sc_list)
3438 DIEArray die_offsets;
3439 if (name_to_die.Find (name, die_offsets))
3441 ParseFunctions (die_offsets, sc_list);
3447 SymbolFileDWARF::FindFunctions (const RegularExpression ®ex,
3448 const NameToDIE &name_to_die,
3449 SymbolContextList& sc_list)
3451 DIEArray die_offsets;
3452 if (name_to_die.Find (regex, die_offsets))
3454 ParseFunctions (die_offsets, sc_list);
3460 SymbolFileDWARF::FindFunctions (const RegularExpression ®ex,
3461 const DWARFMappedHash::MemoryTable &memory_table,
3462 SymbolContextList& sc_list)
3464 DIEArray die_offsets;
3465 DWARFMappedHash::DIEInfoArray hash_data_array;
3466 if (memory_table.AppendAllDIEsThatMatchingRegex (regex, hash_data_array))
3468 DWARFMappedHash::ExtractDIEArray (hash_data_array, die_offsets);
3469 ParseFunctions (die_offsets, sc_list);
3474 SymbolFileDWARF::ParseFunctions (const DIEArray &die_offsets,
3475 SymbolContextList& sc_list)
3477 const size_t num_matches = die_offsets.size();
3482 DWARFCompileUnit* dwarf_cu = NULL;
3483 for (size_t i=0; i<num_matches; ++i)
3485 const dw_offset_t die_offset = die_offsets[i];
3486 ResolveFunction (die_offset, dwarf_cu, sc_list);
3492 SymbolFileDWARF::FunctionDieMatchesPartialName (const DWARFDebugInfoEntry* die,
3493 const DWARFCompileUnit *dwarf_cu,
3494 uint32_t name_type_mask,
3495 const char *partial_name,
3496 const char *base_name_start,
3497 const char *base_name_end)
3499 // If we are looking only for methods, throw away all the ones that are or aren't in C++ classes:
3500 if (name_type_mask == eFunctionNameTypeMethod || name_type_mask == eFunctionNameTypeBase)
3502 clang::DeclContext *containing_decl_ctx = GetClangDeclContextContainingDIEOffset(die->GetOffset());
3503 if (!containing_decl_ctx)
3506 bool is_cxx_method = DeclKindIsCXXClass(containing_decl_ctx->getDeclKind());
3508 if (name_type_mask == eFunctionNameTypeMethod)
3510 if (is_cxx_method == false)
3514 if (name_type_mask == eFunctionNameTypeBase)
3516 if (is_cxx_method == true)
3521 // Now we need to check whether the name we got back for this type matches the extra specifications
3522 // that were in the name we're looking up:
3523 if (base_name_start != partial_name || *base_name_end != '\0')
3525 // First see if the stuff to the left matches the full name. To do that let's see if
3526 // we can pull out the mips linkage name attribute:
3529 DWARFDebugInfoEntry::Attributes attributes;
3530 DWARFFormValue form_value;
3531 die->GetAttributes(this, dwarf_cu, NULL, attributes);
3532 uint32_t idx = attributes.FindAttributeIndex(DW_AT_MIPS_linkage_name);
3533 if (idx == UINT32_MAX)
3534 idx = attributes.FindAttributeIndex(DW_AT_linkage_name);
3535 if (idx != UINT32_MAX)
3537 if (attributes.ExtractFormValueAtIndex(this, idx, form_value))
3539 const char *mangled_name = form_value.AsCString(&get_debug_str_data());
3541 best_name.SetValue (ConstString(mangled_name), true);
3547 idx = attributes.FindAttributeIndex(DW_AT_name);
3548 if (idx != UINT32_MAX && attributes.ExtractFormValueAtIndex(this, idx, form_value))
3550 const char *name = form_value.AsCString(&get_debug_str_data());
3551 best_name.SetValue (ConstString(name), false);
3555 if (best_name.GetDemangledName())
3557 const char *demangled = best_name.GetDemangledName().GetCString();
3560 std::string name_no_parens(partial_name, base_name_end - partial_name);
3561 const char *partial_in_demangled = strstr (demangled, name_no_parens.c_str());
3562 if (partial_in_demangled == NULL)
3566 // Sort out the case where our name is something like "Process::Destroy" and the match is
3567 // "SBProcess::Destroy" - that shouldn't be a match. We should really always match on
3568 // namespace boundaries...
3570 if (partial_name[0] == ':' && partial_name[1] == ':')
3572 // The partial name was already on a namespace boundary so all matches are good.
3575 else if (partial_in_demangled == demangled)
3577 // They both start the same, so this is an good match.
3582 if (partial_in_demangled - demangled == 1)
3584 // Only one character difference, can't be a namespace boundary...
3587 else if (*(partial_in_demangled - 1) == ':' && *(partial_in_demangled - 2) == ':')
3589 // We are on a namespace boundary, so this is also good.
3604 SymbolFileDWARF::FindFunctions (const ConstString &name,
3605 const lldb_private::ClangNamespaceDecl *namespace_decl,
3606 uint32_t name_type_mask,
3607 bool include_inlines,
3609 SymbolContextList& sc_list)
3611 Timer scoped_timer (__PRETTY_FUNCTION__,
3612 "SymbolFileDWARF::FindFunctions (name = '%s')",
3615 // eFunctionNameTypeAuto should be pre-resolved by a call to Module::PrepareForFunctionNameLookup()
3616 assert ((name_type_mask & eFunctionNameTypeAuto) == 0);
3618 Log *log (LogChannelDWARF::GetLogIfAll(DWARF_LOG_LOOKUPS));
3622 GetObjectFile()->GetModule()->LogMessage (log,
3623 "SymbolFileDWARF::FindFunctions (name=\"%s\", name_type_mask=0x%x, append=%u, sc_list)",
3629 // If we aren't appending the results to this list, then clear the list
3633 if (!NamespaceDeclMatchesThisSymbolFile(namespace_decl))
3636 // If name is empty then we won't find anything.
3640 // Remember how many sc_list are in the list before we search in case
3641 // we are appending the results to a variable list.
3643 const char *name_cstr = name.GetCString();
3645 const uint32_t original_size = sc_list.GetSize();
3647 DWARFDebugInfo* info = DebugInfo();
3651 DWARFCompileUnit *dwarf_cu = NULL;
3652 std::set<const DWARFDebugInfoEntry *> resolved_dies;
3653 if (m_using_apple_tables)
3655 if (m_apple_names_ap.get())
3658 DIEArray die_offsets;
3660 uint32_t num_matches = 0;
3662 if (name_type_mask & eFunctionNameTypeFull)
3664 // If they asked for the full name, match what they typed. At some point we may
3665 // want to canonicalize this (strip double spaces, etc. For now, we just add all the
3666 // dies that we find by exact match.
3667 num_matches = m_apple_names_ap->FindByName (name_cstr, die_offsets);
3668 for (uint32_t i = 0; i < num_matches; i++)
3670 const dw_offset_t die_offset = die_offsets[i];
3671 const DWARFDebugInfoEntry *die = info->GetDIEPtrWithCompileUnitHint (die_offset, &dwarf_cu);
3674 if (namespace_decl && !DIEIsInNamespace (namespace_decl, dwarf_cu, die))
3677 if (!include_inlines && die->Tag() == DW_TAG_inlined_subroutine)
3680 if (resolved_dies.find(die) == resolved_dies.end())
3682 if (ResolveFunction (dwarf_cu, die, sc_list))
3683 resolved_dies.insert(die);
3688 GetObjectFile()->GetModule()->ReportErrorIfModifyDetected ("the DWARF debug information has been modified (.apple_names accelerator table had bad die 0x%8.8x for '%s')",
3689 die_offset, name_cstr);
3694 if (name_type_mask & eFunctionNameTypeSelector)
3696 if (namespace_decl && *namespace_decl)
3697 return 0; // no selectors in namespaces
3699 num_matches = m_apple_names_ap->FindByName (name_cstr, die_offsets);
3700 // Now make sure these are actually ObjC methods. In this case we can simply look up the name,
3701 // and if it is an ObjC method name, we're good.
3703 for (uint32_t i = 0; i < num_matches; i++)
3705 const dw_offset_t die_offset = die_offsets[i];
3706 const DWARFDebugInfoEntry* die = info->GetDIEPtrWithCompileUnitHint (die_offset, &dwarf_cu);
3709 const char *die_name = die->GetName(this, dwarf_cu);
3710 if (ObjCLanguageRuntime::IsPossibleObjCMethodName(die_name))
3712 if (!include_inlines && die->Tag() == DW_TAG_inlined_subroutine)
3715 if (resolved_dies.find(die) == resolved_dies.end())
3717 if (ResolveFunction (dwarf_cu, die, sc_list))
3718 resolved_dies.insert(die);
3724 GetObjectFile()->GetModule()->ReportError ("the DWARF debug information has been modified (.apple_names accelerator table had bad die 0x%8.8x for '%s')",
3725 die_offset, name_cstr);
3728 die_offsets.clear();
3731 if (((name_type_mask & eFunctionNameTypeMethod) && !namespace_decl) || name_type_mask & eFunctionNameTypeBase)
3733 // The apple_names table stores just the "base name" of C++ methods in the table. So we have to
3734 // extract the base name, look that up, and if there is any other information in the name we were
3735 // passed in we have to post-filter based on that.
3737 // FIXME: Arrange the logic above so that we don't calculate the base name twice:
3738 num_matches = m_apple_names_ap->FindByName (name_cstr, die_offsets);
3740 for (uint32_t i = 0; i < num_matches; i++)
3742 const dw_offset_t die_offset = die_offsets[i];
3743 const DWARFDebugInfoEntry* die = info->GetDIEPtrWithCompileUnitHint (die_offset, &dwarf_cu);
3746 if (!include_inlines && die->Tag() == DW_TAG_inlined_subroutine)
3749 if (namespace_decl && !DIEIsInNamespace (namespace_decl, dwarf_cu, die))
3752 // If we get to here, the die is good, and we should add it:
3753 if (resolved_dies.find(die) == resolved_dies.end())
3754 if (ResolveFunction (dwarf_cu, die, sc_list))
3756 bool keep_die = true;
3757 if ((name_type_mask & (eFunctionNameTypeBase|eFunctionNameTypeMethod)) != (eFunctionNameTypeBase|eFunctionNameTypeMethod))
3759 // We are looking for either basenames or methods, so we need to
3760 // trim out the ones we won't want by looking at the type
3762 if (sc_list.GetLastContext(sc))
3766 // We have an inlined function
3768 else if (sc.function)
3770 Type *type = sc.function->GetType();
3774 clang::DeclContext* decl_ctx = GetClangDeclContextContainingTypeUID (type->GetID());
3775 if (decl_ctx->isRecord())
3777 if (name_type_mask & eFunctionNameTypeBase)
3779 sc_list.RemoveContextAtIndex(sc_list.GetSize()-1);
3785 if (name_type_mask & eFunctionNameTypeMethod)
3787 sc_list.RemoveContextAtIndex(sc_list.GetSize()-1);
3794 GetObjectFile()->GetModule()->ReportWarning ("function at die offset 0x%8.8x had no function type",
3801 resolved_dies.insert(die);
3806 GetObjectFile()->GetModule()->ReportErrorIfModifyDetected ("the DWARF debug information has been modified (.apple_names accelerator table had bad die 0x%8.8x for '%s')",
3807 die_offset, name_cstr);
3810 die_offsets.clear();
3817 // Index the DWARF if we haven't already
3821 if (name_type_mask & eFunctionNameTypeFull)
3823 FindFunctions (name, m_function_fullname_index, sc_list);
3825 // FIXME Temporary workaround for global/anonymous namespace
3826 // functions on FreeBSD and Linux
3827 #if defined (__FreeBSD__) || defined (__linux__)
3828 // If we didn't find any functions in the global namespace try
3829 // looking in the basename index but ignore any returned
3830 // functions that have a namespace (ie. mangled names starting with
3831 // '_ZN') but keep functions which have an anonymous namespace
3832 if (sc_list.GetSize() == 0)
3834 SymbolContextList temp_sc_list;
3835 FindFunctions (name, m_function_basename_index, temp_sc_list);
3836 if (!namespace_decl)
3839 for (uint32_t i = 0; i < temp_sc_list.GetSize(); i++)
3841 if (temp_sc_list.GetContextAtIndex(i, sc))
3843 ConstString mangled_name = sc.GetFunctionName(Mangled::ePreferMangled);
3844 ConstString demangled_name = sc.GetFunctionName(Mangled::ePreferDemangled);
3845 if (strncmp(mangled_name.GetCString(), "_ZN", 3) ||
3846 !strncmp(demangled_name.GetCString(), "(anonymous namespace)", 21))
3856 DIEArray die_offsets;
3857 DWARFCompileUnit *dwarf_cu = NULL;
3859 if (name_type_mask & eFunctionNameTypeBase)
3861 uint32_t num_base = m_function_basename_index.Find(name, die_offsets);
3862 for (uint32_t i = 0; i < num_base; i++)
3864 const DWARFDebugInfoEntry* die = info->GetDIEPtrWithCompileUnitHint (die_offsets[i], &dwarf_cu);
3867 if (!include_inlines && die->Tag() == DW_TAG_inlined_subroutine)
3870 if (namespace_decl && !DIEIsInNamespace (namespace_decl, dwarf_cu, die))
3873 // If we get to here, the die is good, and we should add it:
3874 if (resolved_dies.find(die) == resolved_dies.end())
3876 if (ResolveFunction (dwarf_cu, die, sc_list))
3877 resolved_dies.insert(die);
3881 die_offsets.clear();
3884 if (name_type_mask & eFunctionNameTypeMethod)
3886 if (namespace_decl && *namespace_decl)
3887 return 0; // no methods in namespaces
3889 uint32_t num_base = m_function_method_index.Find(name, die_offsets);
3891 for (uint32_t i = 0; i < num_base; i++)
3893 const DWARFDebugInfoEntry* die = info->GetDIEPtrWithCompileUnitHint (die_offsets[i], &dwarf_cu);
3896 if (!include_inlines && die->Tag() == DW_TAG_inlined_subroutine)
3899 // If we get to here, the die is good, and we should add it:
3900 if (resolved_dies.find(die) == resolved_dies.end())
3902 if (ResolveFunction (dwarf_cu, die, sc_list))
3903 resolved_dies.insert(die);
3908 die_offsets.clear();
3911 if ((name_type_mask & eFunctionNameTypeSelector) && (!namespace_decl || !*namespace_decl))
3913 FindFunctions (name, m_function_selector_index, sc_list);
3918 // Return the number of variable that were appended to the list
3919 const uint32_t num_matches = sc_list.GetSize() - original_size;
3921 if (log && num_matches > 0)
3923 GetObjectFile()->GetModule()->LogMessage (log,
3924 "SymbolFileDWARF::FindFunctions (name=\"%s\", name_type_mask=0x%x, append=%u, sc_list) => %u",
3934 SymbolFileDWARF::FindFunctions(const RegularExpression& regex, bool include_inlines, bool append, SymbolContextList& sc_list)
3936 Timer scoped_timer (__PRETTY_FUNCTION__,
3937 "SymbolFileDWARF::FindFunctions (regex = '%s')",
3940 Log *log (LogChannelDWARF::GetLogIfAll(DWARF_LOG_LOOKUPS));
3944 GetObjectFile()->GetModule()->LogMessage (log,
3945 "SymbolFileDWARF::FindFunctions (regex=\"%s\", append=%u, sc_list)",
3951 // If we aren't appending the results to this list, then clear the list
3955 // Remember how many sc_list are in the list before we search in case
3956 // we are appending the results to a variable list.
3957 uint32_t original_size = sc_list.GetSize();
3959 if (m_using_apple_tables)
3961 if (m_apple_names_ap.get())
3962 FindFunctions (regex, *m_apple_names_ap, sc_list);
3966 // Index the DWARF if we haven't already
3970 FindFunctions (regex, m_function_basename_index, sc_list);
3972 FindFunctions (regex, m_function_fullname_index, sc_list);
3975 // Return the number of variable that were appended to the list
3976 return sc_list.GetSize() - original_size;
3980 SymbolFileDWARF::FindTypes (const SymbolContext& sc,
3981 const ConstString &name,
3982 const lldb_private::ClangNamespaceDecl *namespace_decl,
3984 uint32_t max_matches,
3987 DWARFDebugInfo* info = DebugInfo();
3991 Log *log (LogChannelDWARF::GetLogIfAll(DWARF_LOG_LOOKUPS));
3996 GetObjectFile()->GetModule()->LogMessage (log,
3997 "SymbolFileDWARF::FindTypes (sc, name=\"%s\", clang::NamespaceDecl(%p) \"%s\", append=%u, max_matches=%u, type_list)",
3999 static_cast<void*>(namespace_decl->GetNamespaceDecl()),
4000 namespace_decl->GetQualifiedName().c_str(),
4001 append, max_matches);
4003 GetObjectFile()->GetModule()->LogMessage (log,
4004 "SymbolFileDWARF::FindTypes (sc, name=\"%s\", clang::NamespaceDecl(NULL), append=%u, max_matches=%u, type_list)",
4005 name.GetCString(), append,
4009 // If we aren't appending the results to this list, then clear the list
4013 if (!NamespaceDeclMatchesThisSymbolFile(namespace_decl))
4016 DIEArray die_offsets;
4018 if (m_using_apple_tables)
4020 if (m_apple_types_ap.get())
4022 const char *name_cstr = name.GetCString();
4023 m_apple_types_ap->FindByName (name_cstr, die_offsets);
4031 m_type_index.Find (name, die_offsets);
4034 const size_t num_die_matches = die_offsets.size();
4036 if (num_die_matches)
4038 const uint32_t initial_types_size = types.GetSize();
4039 DWARFCompileUnit* dwarf_cu = NULL;
4040 const DWARFDebugInfoEntry* die = NULL;
4041 DWARFDebugInfo* debug_info = DebugInfo();
4042 for (size_t i=0; i<num_die_matches; ++i)
4044 const dw_offset_t die_offset = die_offsets[i];
4045 die = debug_info->GetDIEPtrWithCompileUnitHint (die_offset, &dwarf_cu);
4049 if (namespace_decl && !DIEIsInNamespace (namespace_decl, dwarf_cu, die))
4052 Type *matching_type = ResolveType (dwarf_cu, die);
4055 // We found a type pointer, now find the shared pointer form our type list
4056 types.InsertUnique (matching_type->shared_from_this());
4057 if (types.GetSize() >= max_matches)
4063 if (m_using_apple_tables)
4065 GetObjectFile()->GetModule()->ReportErrorIfModifyDetected ("the DWARF debug information has been modified (.apple_types accelerator table had bad die 0x%8.8x for '%s')\n",
4066 die_offset, name.GetCString());
4071 const uint32_t num_matches = types.GetSize() - initial_types_size;
4072 if (log && num_matches)
4076 GetObjectFile()->GetModule()->LogMessage (log,
4077 "SymbolFileDWARF::FindTypes (sc, name=\"%s\", clang::NamespaceDecl(%p) \"%s\", append=%u, max_matches=%u, type_list) => %u",
4079 static_cast<void*>(namespace_decl->GetNamespaceDecl()),
4080 namespace_decl->GetQualifiedName().c_str(),
4081 append, max_matches,
4086 GetObjectFile()->GetModule()->LogMessage (log,
4087 "SymbolFileDWARF::FindTypes (sc, name=\"%s\", clang::NamespaceDecl(NULL), append=%u, max_matches=%u, type_list) => %u",
4089 append, max_matches,
4100 SymbolFileDWARF::FindNamespace (const SymbolContext& sc,
4101 const ConstString &name,
4102 const lldb_private::ClangNamespaceDecl *parent_namespace_decl)
4104 Log *log (LogChannelDWARF::GetLogIfAll(DWARF_LOG_LOOKUPS));
4108 GetObjectFile()->GetModule()->LogMessage (log,
4109 "SymbolFileDWARF::FindNamespace (sc, name=\"%s\")",
4113 if (!NamespaceDeclMatchesThisSymbolFile(parent_namespace_decl))
4114 return ClangNamespaceDecl();
4116 ClangNamespaceDecl namespace_decl;
4117 DWARFDebugInfo* info = DebugInfo();
4120 DIEArray die_offsets;
4122 // Index if we already haven't to make sure the compile units
4123 // get indexed and make their global DIE index list
4124 if (m_using_apple_tables)
4126 if (m_apple_namespaces_ap.get())
4128 const char *name_cstr = name.GetCString();
4129 m_apple_namespaces_ap->FindByName (name_cstr, die_offsets);
4137 m_namespace_index.Find (name, die_offsets);
4140 DWARFCompileUnit* dwarf_cu = NULL;
4141 const DWARFDebugInfoEntry* die = NULL;
4142 const size_t num_matches = die_offsets.size();
4145 DWARFDebugInfo* debug_info = DebugInfo();
4146 for (size_t i=0; i<num_matches; ++i)
4148 const dw_offset_t die_offset = die_offsets[i];
4149 die = debug_info->GetDIEPtrWithCompileUnitHint (die_offset, &dwarf_cu);
4153 if (parent_namespace_decl && !DIEIsInNamespace (parent_namespace_decl, dwarf_cu, die))
4156 clang::NamespaceDecl *clang_namespace_decl = ResolveNamespaceDIE (dwarf_cu, die);
4157 if (clang_namespace_decl)
4159 namespace_decl.SetASTContext (GetClangASTContext().getASTContext());
4160 namespace_decl.SetNamespaceDecl (clang_namespace_decl);
4166 if (m_using_apple_tables)
4168 GetObjectFile()->GetModule()->ReportErrorIfModifyDetected ("the DWARF debug information has been modified (.apple_namespaces accelerator table had bad die 0x%8.8x for '%s')\n",
4169 die_offset, name.GetCString());
4176 if (log && namespace_decl.GetNamespaceDecl())
4178 GetObjectFile()->GetModule()->LogMessage (log,
4179 "SymbolFileDWARF::FindNamespace (sc, name=\"%s\") => clang::NamespaceDecl(%p) \"%s\"",
4181 static_cast<const void*>(namespace_decl.GetNamespaceDecl()),
4182 namespace_decl.GetQualifiedName().c_str());
4185 return namespace_decl;
4189 SymbolFileDWARF::FindTypes(std::vector<dw_offset_t> die_offsets, uint32_t max_matches, TypeList& types)
4191 // Remember how many sc_list are in the list before we search in case
4192 // we are appending the results to a variable list.
4193 uint32_t original_size = types.GetSize();
4195 const uint32_t num_die_offsets = die_offsets.size();
4196 // Parse all of the types we found from the pubtypes matches
4198 uint32_t num_matches = 0;
4199 for (i = 0; i < num_die_offsets; ++i)
4201 Type *matching_type = ResolveTypeUID (die_offsets[i]);
4204 // We found a type pointer, now find the shared pointer form our type list
4205 types.InsertUnique (matching_type->shared_from_this());
4207 if (num_matches >= max_matches)
4212 // Return the number of variable that were appended to the list
4213 return types.GetSize() - original_size;
4218 SymbolFileDWARF::ParseChildParameters (const SymbolContext& sc,
4219 clang::DeclContext *containing_decl_ctx,
4220 DWARFCompileUnit* dwarf_cu,
4221 const DWARFDebugInfoEntry *parent_die,
4222 bool skip_artificial,
4225 TypeList* type_list,
4226 std::vector<ClangASTType>& function_param_types,
4227 std::vector<clang::ParmVarDecl*>& function_param_decls,
4228 unsigned &type_quals) // ,
4229 // ClangASTContext::TemplateParameterInfos &template_param_infos))
4231 if (parent_die == NULL)
4234 const uint8_t *fixed_form_sizes = DWARFFormValue::GetFixedFormSizesForAddressSize (dwarf_cu->GetAddressByteSize(), dwarf_cu->IsDWARF64());
4237 const DWARFDebugInfoEntry *die;
4238 for (die = parent_die->GetFirstChild(); die != NULL; die = die->GetSibling())
4240 dw_tag_t tag = die->Tag();
4243 case DW_TAG_formal_parameter:
4245 DWARFDebugInfoEntry::Attributes attributes;
4246 const size_t num_attributes = die->GetAttributes(this, dwarf_cu, fixed_form_sizes, attributes);
4247 if (num_attributes > 0)
4249 const char *name = NULL;
4251 dw_offset_t param_type_die_offset = DW_INVALID_OFFSET;
4252 bool is_artificial = false;
4253 // one of None, Auto, Register, Extern, Static, PrivateExtern
4255 clang::StorageClass storage = clang::SC_None;
4257 for (i=0; i<num_attributes; ++i)
4259 const dw_attr_t attr = attributes.AttributeAtIndex(i);
4260 DWARFFormValue form_value;
4261 if (attributes.ExtractFormValueAtIndex(this, i, form_value))
4265 case DW_AT_decl_file: decl.SetFile(sc.comp_unit->GetSupportFiles().GetFileSpecAtIndex(form_value.Unsigned())); break;
4266 case DW_AT_decl_line: decl.SetLine(form_value.Unsigned()); break;
4267 case DW_AT_decl_column: decl.SetColumn(form_value.Unsigned()); break;
4268 case DW_AT_name: name = form_value.AsCString(&get_debug_str_data()); break;
4269 case DW_AT_type: param_type_die_offset = form_value.Reference(); break;
4270 case DW_AT_artificial: is_artificial = form_value.Boolean(); break;
4271 case DW_AT_location:
4272 // if (form_value.BlockData())
4274 // const DWARFDataExtractor& debug_info_data = debug_info();
4275 // uint32_t block_length = form_value.Unsigned();
4276 // DWARFDataExtractor location(debug_info_data, form_value.BlockData() - debug_info_data.GetDataStart(), block_length);
4282 case DW_AT_const_value:
4283 case DW_AT_default_value:
4284 case DW_AT_description:
4285 case DW_AT_endianity:
4286 case DW_AT_is_optional:
4288 case DW_AT_variable_parameter:
4290 case DW_AT_abstract_origin:
4298 if (skip_artificial)
4302 // In order to determine if a C++ member function is
4303 // "const" we have to look at the const-ness of "this"...
4307 if (DeclKindIsCXXClass(containing_decl_ctx->getDeclKind()))
4309 // Often times compilers omit the "this" name for the
4310 // specification DIEs, so we can't rely upon the name
4311 // being in the formal parameter DIE...
4312 if (name == NULL || ::strcmp(name, "this")==0)
4314 Type *this_type = ResolveTypeUID (param_type_die_offset);
4317 uint32_t encoding_mask = this_type->GetEncodingMask();
4318 if (encoding_mask & Type::eEncodingIsPointerUID)
4322 if (encoding_mask & (1u << Type::eEncodingIsConstUID))
4323 type_quals |= clang::Qualifiers::Const;
4324 if (encoding_mask & (1u << Type::eEncodingIsVolatileUID))
4325 type_quals |= clang::Qualifiers::Volatile;
4336 // HACK: Objective C formal parameters "self" and "_cmd"
4337 // are not marked as artificial in the DWARF...
4338 CompileUnit *comp_unit = GetCompUnitForDWARFCompUnit(dwarf_cu, UINT32_MAX);
4341 switch (comp_unit->GetLanguage())
4343 case eLanguageTypeObjC:
4344 case eLanguageTypeObjC_plus_plus:
4345 if (name && name[0] && (strcmp (name, "self") == 0 || strcmp (name, "_cmd") == 0))
4357 Type *type = ResolveTypeUID(param_type_die_offset);
4360 function_param_types.push_back (type->GetClangForwardType());
4362 clang::ParmVarDecl *param_var_decl = GetClangASTContext().CreateParameterDeclaration (name,
4363 type->GetClangForwardType(),
4365 assert(param_var_decl);
4366 function_param_decls.push_back(param_var_decl);
4368 GetClangASTContext().SetMetadataAsUserID (param_var_decl, MakeUserID(die->GetOffset()));
4376 case DW_TAG_unspecified_parameters:
4380 case DW_TAG_template_type_parameter:
4381 case DW_TAG_template_value_parameter:
4382 // The one caller of this was never using the template_param_infos,
4383 // and the local variable was taking up a large amount of stack space
4384 // in SymbolFileDWARF::ParseType() so this was removed. If we ever need
4385 // the template params back, we can add them back.
4386 // ParseTemplateDIE (dwarf_cu, die, template_param_infos);
4397 SymbolFileDWARF::ParseChildEnumerators
4399 const SymbolContext& sc,
4400 lldb_private::ClangASTType &clang_type,
4402 uint32_t enumerator_byte_size,
4403 DWARFCompileUnit* dwarf_cu,
4404 const DWARFDebugInfoEntry *parent_die
4407 if (parent_die == NULL)
4410 size_t enumerators_added = 0;
4411 const DWARFDebugInfoEntry *die;
4412 const uint8_t *fixed_form_sizes = DWARFFormValue::GetFixedFormSizesForAddressSize (dwarf_cu->GetAddressByteSize(), dwarf_cu->IsDWARF64());
4414 for (die = parent_die->GetFirstChild(); die != NULL; die = die->GetSibling())
4416 const dw_tag_t tag = die->Tag();
4417 if (tag == DW_TAG_enumerator)
4419 DWARFDebugInfoEntry::Attributes attributes;
4420 const size_t num_child_attributes = die->GetAttributes(this, dwarf_cu, fixed_form_sizes, attributes);
4421 if (num_child_attributes > 0)
4423 const char *name = NULL;
4424 bool got_value = false;
4425 int64_t enum_value = 0;
4429 for (i=0; i<num_child_attributes; ++i)
4431 const dw_attr_t attr = attributes.AttributeAtIndex(i);
4432 DWARFFormValue form_value;
4433 if (attributes.ExtractFormValueAtIndex(this, i, form_value))
4437 case DW_AT_const_value:
4440 enum_value = form_value.Signed();
4442 enum_value = form_value.Unsigned();
4446 name = form_value.AsCString(&get_debug_str_data());
4449 case DW_AT_description:
4451 case DW_AT_decl_file: decl.SetFile(sc.comp_unit->GetSupportFiles().GetFileSpecAtIndex(form_value.Unsigned())); break;
4452 case DW_AT_decl_line: decl.SetLine(form_value.Unsigned()); break;
4453 case DW_AT_decl_column: decl.SetColumn(form_value.Unsigned()); break;
4460 if (name && name[0] && got_value)
4462 clang_type.AddEnumerationValueToEnumerationType (clang_type.GetEnumerationIntegerType(),
4466 enumerator_byte_size * 8);
4467 ++enumerators_added;
4472 return enumerators_added;
4476 SymbolFileDWARF::ParseChildArrayInfo
4478 const SymbolContext& sc,
4479 DWARFCompileUnit* dwarf_cu,
4480 const DWARFDebugInfoEntry *parent_die,
4481 int64_t& first_index,
4482 std::vector<uint64_t>& element_orders,
4483 uint32_t& byte_stride,
4484 uint32_t& bit_stride
4487 if (parent_die == NULL)
4490 const DWARFDebugInfoEntry *die;
4491 const uint8_t *fixed_form_sizes = DWARFFormValue::GetFixedFormSizesForAddressSize (dwarf_cu->GetAddressByteSize(), dwarf_cu->IsDWARF64());
4492 for (die = parent_die->GetFirstChild(); die != NULL; die = die->GetSibling())
4494 const dw_tag_t tag = die->Tag();
4497 case DW_TAG_subrange_type:
4499 DWARFDebugInfoEntry::Attributes attributes;
4500 const size_t num_child_attributes = die->GetAttributes(this, dwarf_cu, fixed_form_sizes, attributes);
4501 if (num_child_attributes > 0)
4503 uint64_t num_elements = 0;
4504 uint64_t lower_bound = 0;
4505 uint64_t upper_bound = 0;
4506 bool upper_bound_valid = false;
4508 for (i=0; i<num_child_attributes; ++i)
4510 const dw_attr_t attr = attributes.AttributeAtIndex(i);
4511 DWARFFormValue form_value;
4512 if (attributes.ExtractFormValueAtIndex(this, i, form_value))
4520 num_elements = form_value.Unsigned();
4523 case DW_AT_bit_stride:
4524 bit_stride = form_value.Unsigned();
4527 case DW_AT_byte_stride:
4528 byte_stride = form_value.Unsigned();
4531 case DW_AT_lower_bound:
4532 lower_bound = form_value.Unsigned();
4535 case DW_AT_upper_bound:
4536 upper_bound_valid = true;
4537 upper_bound = form_value.Unsigned();
4541 case DW_AT_abstract_origin:
4542 case DW_AT_accessibility:
4543 case DW_AT_allocated:
4544 case DW_AT_associated:
4545 case DW_AT_data_location:
4546 case DW_AT_declaration:
4547 case DW_AT_description:
4549 case DW_AT_threads_scaled:
4551 case DW_AT_visibility:
4557 if (num_elements == 0)
4559 if (upper_bound_valid && upper_bound >= lower_bound)
4560 num_elements = upper_bound - lower_bound + 1;
4563 element_orders.push_back (num_elements);
4572 SymbolFileDWARF::GetTypeForDIE (DWARFCompileUnit *dwarf_cu, const DWARFDebugInfoEntry* die)
4577 assert(dwarf_cu != NULL);
4578 Type *type_ptr = m_die_to_type.lookup (die);
4579 if (type_ptr == NULL)
4581 CompileUnit* lldb_cu = GetCompUnitForDWARFCompUnit(dwarf_cu);
4583 SymbolContext sc(lldb_cu);
4584 type_sp = ParseType(sc, dwarf_cu, die, NULL);
4586 else if (type_ptr != DIE_IS_BEING_PARSED)
4588 // Grab the existing type from the master types lists
4589 type_sp = type_ptr->shared_from_this();
4596 clang::DeclContext *
4597 SymbolFileDWARF::GetClangDeclContextContainingDIEOffset (dw_offset_t die_offset)
4599 if (die_offset != DW_INVALID_OFFSET)
4601 DWARFCompileUnitSP cu_sp;
4602 const DWARFDebugInfoEntry* die = DebugInfo()->GetDIEPtr(die_offset, &cu_sp);
4603 return GetClangDeclContextContainingDIE (cu_sp.get(), die, NULL);
4608 clang::DeclContext *
4609 SymbolFileDWARF::GetClangDeclContextForDIEOffset (const SymbolContext &sc, dw_offset_t die_offset)
4611 if (die_offset != DW_INVALID_OFFSET)
4613 DWARFDebugInfo* debug_info = DebugInfo();
4616 DWARFCompileUnitSP cu_sp;
4617 const DWARFDebugInfoEntry* die = debug_info->GetDIEPtr(die_offset, &cu_sp);
4619 return GetClangDeclContextForDIE (sc, cu_sp.get(), die);
4625 clang::NamespaceDecl *
4626 SymbolFileDWARF::ResolveNamespaceDIE (DWARFCompileUnit *dwarf_cu, const DWARFDebugInfoEntry *die)
4628 if (die && die->Tag() == DW_TAG_namespace)
4630 // See if we already parsed this namespace DIE and associated it with a
4631 // uniqued namespace declaration
4632 clang::NamespaceDecl *namespace_decl = static_cast<clang::NamespaceDecl *>(m_die_to_decl_ctx[die]);
4634 return namespace_decl;
4637 const char *namespace_name = die->GetAttributeValueAsString(this, dwarf_cu, DW_AT_name, NULL);
4638 clang::DeclContext *containing_decl_ctx = GetClangDeclContextContainingDIE (dwarf_cu, die, NULL);
4639 namespace_decl = GetClangASTContext().GetUniqueNamespaceDeclaration (namespace_name, containing_decl_ctx);
4640 Log *log (LogChannelDWARF::GetLogIfAll(DWARF_LOG_DEBUG_INFO));
4645 GetObjectFile()->GetModule()->LogMessage (log,
4646 "ASTContext => %p: 0x%8.8" PRIx64 ": DW_TAG_namespace with DW_AT_name(\"%s\") => clang::NamespaceDecl *%p (original = %p)",
4647 static_cast<void*>(GetClangASTContext().getASTContext()),
4648 MakeUserID(die->GetOffset()),
4650 static_cast<void*>(namespace_decl),
4651 static_cast<void*>(namespace_decl->getOriginalNamespace()));
4655 GetObjectFile()->GetModule()->LogMessage (log,
4656 "ASTContext => %p: 0x%8.8" PRIx64 ": DW_TAG_namespace (anonymous) => clang::NamespaceDecl *%p (original = %p)",
4657 static_cast<void*>(GetClangASTContext().getASTContext()),
4658 MakeUserID(die->GetOffset()),
4659 static_cast<void*>(namespace_decl),
4660 static_cast<void*>(namespace_decl->getOriginalNamespace()));
4665 LinkDeclContextToDIE((clang::DeclContext*)namespace_decl, die);
4666 return namespace_decl;
4672 clang::DeclContext *
4673 SymbolFileDWARF::GetClangDeclContextForDIE (const SymbolContext &sc, DWARFCompileUnit *cu, const DWARFDebugInfoEntry *die)
4675 clang::DeclContext *clang_decl_ctx = GetCachedClangDeclContextForDIE (die);
4677 return clang_decl_ctx;
4678 // If this DIE has a specification, or an abstract origin, then trace to those.
4680 dw_offset_t die_offset = die->GetAttributeValueAsReference(this, cu, DW_AT_specification, DW_INVALID_OFFSET);
4681 if (die_offset != DW_INVALID_OFFSET)
4682 return GetClangDeclContextForDIEOffset (sc, die_offset);
4684 die_offset = die->GetAttributeValueAsReference(this, cu, DW_AT_abstract_origin, DW_INVALID_OFFSET);
4685 if (die_offset != DW_INVALID_OFFSET)
4686 return GetClangDeclContextForDIEOffset (sc, die_offset);
4688 Log *log (LogChannelDWARF::GetLogIfAll(DWARF_LOG_DEBUG_INFO));
4690 GetObjectFile()->GetModule()->LogMessage(log, "SymbolFileDWARF::GetClangDeclContextForDIE (die = 0x%8.8x) %s '%s'", die->GetOffset(), DW_TAG_value_to_name(die->Tag()), die->GetName(this, cu));
4691 // This is the DIE we want. Parse it, then query our map.
4692 bool assert_not_being_parsed = true;
4693 ResolveTypeUID (cu, die, assert_not_being_parsed);
4695 clang_decl_ctx = GetCachedClangDeclContextForDIE (die);
4697 return clang_decl_ctx;
4700 clang::DeclContext *
4701 SymbolFileDWARF::GetClangDeclContextContainingDIE (DWARFCompileUnit *cu, const DWARFDebugInfoEntry *die, const DWARFDebugInfoEntry **decl_ctx_die_copy)
4703 if (m_clang_tu_decl == NULL)
4704 m_clang_tu_decl = GetClangASTContext().getASTContext()->getTranslationUnitDecl();
4706 const DWARFDebugInfoEntry *decl_ctx_die = GetDeclContextDIEContainingDIE (cu, die);
4708 if (decl_ctx_die_copy)
4709 *decl_ctx_die_copy = decl_ctx_die;
4714 DIEToDeclContextMap::iterator pos = m_die_to_decl_ctx.find (decl_ctx_die);
4715 if (pos != m_die_to_decl_ctx.end())
4718 switch (decl_ctx_die->Tag())
4720 case DW_TAG_compile_unit:
4721 return m_clang_tu_decl;
4723 case DW_TAG_namespace:
4724 return ResolveNamespaceDIE (cu, decl_ctx_die);
4727 case DW_TAG_structure_type:
4728 case DW_TAG_union_type:
4729 case DW_TAG_class_type:
4731 Type* type = ResolveType (cu, decl_ctx_die);
4734 clang::DeclContext *decl_ctx = type->GetClangForwardType().GetDeclContextForType ();
4737 LinkDeclContextToDIE (decl_ctx, decl_ctx_die);
4749 return m_clang_tu_decl;
4753 const DWARFDebugInfoEntry *
4754 SymbolFileDWARF::GetDeclContextDIEContainingDIE (DWARFCompileUnit *cu, const DWARFDebugInfoEntry *die)
4758 const DWARFDebugInfoEntry * const decl_die = die;
4762 // If this is the original DIE that we are searching for a declaration
4763 // for, then don't look in the cache as we don't want our own decl
4764 // context to be our decl context...
4765 if (decl_die != die)
4769 case DW_TAG_compile_unit:
4770 case DW_TAG_namespace:
4771 case DW_TAG_structure_type:
4772 case DW_TAG_union_type:
4773 case DW_TAG_class_type:
4781 dw_offset_t die_offset = die->GetAttributeValueAsReference(this, cu, DW_AT_specification, DW_INVALID_OFFSET);
4782 if (die_offset != DW_INVALID_OFFSET)
4784 DWARFCompileUnit *spec_cu = cu;
4785 const DWARFDebugInfoEntry *spec_die = DebugInfo()->GetDIEPtrWithCompileUnitHint (die_offset, &spec_cu);
4786 const DWARFDebugInfoEntry *spec_die_decl_ctx_die = GetDeclContextDIEContainingDIE (spec_cu, spec_die);
4787 if (spec_die_decl_ctx_die)
4788 return spec_die_decl_ctx_die;
4791 die_offset = die->GetAttributeValueAsReference(this, cu, DW_AT_abstract_origin, DW_INVALID_OFFSET);
4792 if (die_offset != DW_INVALID_OFFSET)
4794 DWARFCompileUnit *abs_cu = cu;
4795 const DWARFDebugInfoEntry *abs_die = DebugInfo()->GetDIEPtrWithCompileUnitHint (die_offset, &abs_cu);
4796 const DWARFDebugInfoEntry *abs_die_decl_ctx_die = GetDeclContextDIEContainingDIE (abs_cu, abs_die);
4797 if (abs_die_decl_ctx_die)
4798 return abs_die_decl_ctx_die;
4801 die = die->GetParent();
4809 SymbolFileDWARF::GetObjCClassSymbol (const ConstString &objc_class_name)
4811 Symbol *objc_class_symbol = NULL;
4814 Symtab *symtab = m_obj_file->GetSymtab ();
4817 objc_class_symbol = symtab->FindFirstSymbolWithNameAndType (objc_class_name,
4818 eSymbolTypeObjCClass,
4820 Symtab::eVisibilityAny);
4823 return objc_class_symbol;
4826 // Some compilers don't emit the DW_AT_APPLE_objc_complete_type attribute. If they don't
4827 // then we can end up looking through all class types for a complete type and never find
4828 // the full definition. We need to know if this attribute is supported, so we determine
4829 // this here and cache th result. We also need to worry about the debug map DWARF file
4830 // if we are doing darwin DWARF in .o file debugging.
4832 SymbolFileDWARF::Supports_DW_AT_APPLE_objc_complete_type (DWARFCompileUnit *cu)
4834 if (m_supports_DW_AT_APPLE_objc_complete_type == eLazyBoolCalculate)
4836 m_supports_DW_AT_APPLE_objc_complete_type = eLazyBoolNo;
4837 if (cu && cu->Supports_DW_AT_APPLE_objc_complete_type())
4838 m_supports_DW_AT_APPLE_objc_complete_type = eLazyBoolYes;
4841 DWARFDebugInfo* debug_info = DebugInfo();
4842 const uint32_t num_compile_units = GetNumCompileUnits();
4843 for (uint32_t cu_idx = 0; cu_idx < num_compile_units; ++cu_idx)
4845 DWARFCompileUnit* dwarf_cu = debug_info->GetCompileUnitAtIndex(cu_idx);
4846 if (dwarf_cu != cu && dwarf_cu->Supports_DW_AT_APPLE_objc_complete_type())
4848 m_supports_DW_AT_APPLE_objc_complete_type = eLazyBoolYes;
4853 if (m_supports_DW_AT_APPLE_objc_complete_type == eLazyBoolNo && GetDebugMapSymfile ())
4854 return m_debug_map_symfile->Supports_DW_AT_APPLE_objc_complete_type (this);
4856 return m_supports_DW_AT_APPLE_objc_complete_type == eLazyBoolYes;
4859 // This function can be used when a DIE is found that is a forward declaration
4860 // DIE and we want to try and find a type that has the complete definition.
4862 SymbolFileDWARF::FindCompleteObjCDefinitionTypeForDIE (const DWARFDebugInfoEntry *die,
4863 const ConstString &type_name,
4864 bool must_be_implementation)
4869 if (!type_name || (must_be_implementation && !GetObjCClassSymbol (type_name)))
4872 DIEArray die_offsets;
4874 if (m_using_apple_tables)
4876 if (m_apple_types_ap.get())
4878 const char *name_cstr = type_name.GetCString();
4879 m_apple_types_ap->FindCompleteObjCClassByName (name_cstr, die_offsets, must_be_implementation);
4887 m_type_index.Find (type_name, die_offsets);
4890 const size_t num_matches = die_offsets.size();
4892 DWARFCompileUnit* type_cu = NULL;
4893 const DWARFDebugInfoEntry* type_die = NULL;
4896 DWARFDebugInfo* debug_info = DebugInfo();
4897 for (size_t i=0; i<num_matches; ++i)
4899 const dw_offset_t die_offset = die_offsets[i];
4900 type_die = debug_info->GetDIEPtrWithCompileUnitHint (die_offset, &type_cu);
4904 bool try_resolving_type = false;
4906 // Don't try and resolve the DIE we are looking for with the DIE itself!
4907 if (type_die != die)
4909 switch (type_die->Tag())
4911 case DW_TAG_class_type:
4912 case DW_TAG_structure_type:
4913 try_resolving_type = true;
4920 if (try_resolving_type)
4922 if (must_be_implementation && type_cu->Supports_DW_AT_APPLE_objc_complete_type())
4923 try_resolving_type = type_die->GetAttributeValueAsUnsigned (this, type_cu, DW_AT_APPLE_objc_complete_type, 0);
4925 if (try_resolving_type)
4927 Type *resolved_type = ResolveType (type_cu, type_die, false);
4928 if (resolved_type && resolved_type != DIE_IS_BEING_PARSED)
4930 DEBUG_PRINTF ("resolved 0x%8.8" PRIx64 " from %s to 0x%8.8" PRIx64 " (cu 0x%8.8" PRIx64 ")\n",
4931 MakeUserID(die->GetOffset()),
4932 m_obj_file->GetFileSpec().GetFilename().AsCString("<Unknown>"),
4933 MakeUserID(type_die->GetOffset()),
4934 MakeUserID(type_cu->GetOffset()));
4937 m_die_to_type[die] = resolved_type;
4938 type_sp = resolved_type->shared_from_this();
4946 if (m_using_apple_tables)
4948 GetObjectFile()->GetModule()->ReportErrorIfModifyDetected ("the DWARF debug information has been modified (.apple_types accelerator table had bad die 0x%8.8x for '%s')\n",
4949 die_offset, type_name.GetCString());
4959 //----------------------------------------------------------------------
4960 // This function helps to ensure that the declaration contexts match for
4961 // two different DIEs. Often times debug information will refer to a
4962 // forward declaration of a type (the equivalent of "struct my_struct;".
4963 // There will often be a declaration of that type elsewhere that has the
4964 // full definition. When we go looking for the full type "my_struct", we
4965 // will find one or more matches in the accelerator tables and we will
4966 // then need to make sure the type was in the same declaration context
4967 // as the original DIE. This function can efficiently compare two DIEs
4968 // and will return true when the declaration context matches, and false
4970 //----------------------------------------------------------------------
4972 SymbolFileDWARF::DIEDeclContextsMatch (DWARFCompileUnit* cu1, const DWARFDebugInfoEntry *die1,
4973 DWARFCompileUnit* cu2, const DWARFDebugInfoEntry *die2)
4978 #if defined (LLDB_CONFIGURATION_DEBUG)
4979 // You can't and shouldn't call this function with a compile unit from
4980 // two different SymbolFileDWARF instances.
4981 assert (DebugInfo()->ContainsCompileUnit (cu1));
4982 assert (DebugInfo()->ContainsCompileUnit (cu2));
4985 DWARFDIECollection decl_ctx_1;
4986 DWARFDIECollection decl_ctx_2;
4987 //The declaration DIE stack is a stack of the declaration context
4988 // DIEs all the way back to the compile unit. If a type "T" is
4989 // declared inside a class "B", and class "B" is declared inside
4990 // a class "A" and class "A" is in a namespace "lldb", and the
4991 // namespace is in a compile unit, there will be a stack of DIEs:
4993 // [0] DW_TAG_class_type for "B"
4994 // [1] DW_TAG_class_type for "A"
4995 // [2] DW_TAG_namespace for "lldb"
4996 // [3] DW_TAG_compile_unit for the source file.
4998 // We grab both contexts and make sure that everything matches
4999 // all the way back to the compiler unit.
5001 // First lets grab the decl contexts for both DIEs
5002 die1->GetDeclContextDIEs (this, cu1, decl_ctx_1);
5003 die2->GetDeclContextDIEs (this, cu2, decl_ctx_2);
5004 // Make sure the context arrays have the same size, otherwise
5006 const size_t count1 = decl_ctx_1.Size();
5007 const size_t count2 = decl_ctx_2.Size();
5008 if (count1 != count2)
5011 // Make sure the DW_TAG values match all the way back up the
5012 // compile unit. If they don't, then we are done.
5013 const DWARFDebugInfoEntry *decl_ctx_die1;
5014 const DWARFDebugInfoEntry *decl_ctx_die2;
5016 for (i=0; i<count1; i++)
5018 decl_ctx_die1 = decl_ctx_1.GetDIEPtrAtIndex (i);
5019 decl_ctx_die2 = decl_ctx_2.GetDIEPtrAtIndex (i);
5020 if (decl_ctx_die1->Tag() != decl_ctx_die2->Tag())
5023 #if defined LLDB_CONFIGURATION_DEBUG
5025 // Make sure the top item in the decl context die array is always
5026 // DW_TAG_compile_unit. If it isn't then something went wrong in
5027 // the DWARFDebugInfoEntry::GetDeclContextDIEs() function...
5028 assert (decl_ctx_1.GetDIEPtrAtIndex (count1 - 1)->Tag() == DW_TAG_compile_unit);
5031 // Always skip the compile unit when comparing by only iterating up to
5032 // "count - 1". Here we compare the names as we go.
5033 for (i=0; i<count1 - 1; i++)
5035 decl_ctx_die1 = decl_ctx_1.GetDIEPtrAtIndex (i);
5036 decl_ctx_die2 = decl_ctx_2.GetDIEPtrAtIndex (i);
5037 const char *name1 = decl_ctx_die1->GetName(this, cu1);
5038 const char *name2 = decl_ctx_die2->GetName(this, cu2);
5039 // If the string was from a DW_FORM_strp, then the pointer will often
5044 // Name pointers are not equal, so only compare the strings
5045 // if both are not NULL.
5048 // If the strings don't compare, we are done...
5049 if (strcmp(name1, name2) != 0)
5054 // One name was NULL while the other wasn't
5058 // We made it through all of the checks and the declaration contexts
5065 SymbolFileDWARF::FindDefinitionTypeForDWARFDeclContext (const DWARFDeclContext &dwarf_decl_ctx)
5069 const uint32_t dwarf_decl_ctx_count = dwarf_decl_ctx.GetSize();
5070 if (dwarf_decl_ctx_count > 0)
5072 const ConstString type_name(dwarf_decl_ctx[0].name);
5073 const dw_tag_t tag = dwarf_decl_ctx[0].tag;
5077 Log *log (LogChannelDWARF::GetLogIfAny(DWARF_LOG_TYPE_COMPLETION|DWARF_LOG_LOOKUPS));
5080 GetObjectFile()->GetModule()->LogMessage (log,
5081 "SymbolFileDWARF::FindDefinitionTypeForDWARFDeclContext(tag=%s, qualified-name='%s')",
5082 DW_TAG_value_to_name(dwarf_decl_ctx[0].tag),
5083 dwarf_decl_ctx.GetQualifiedName());
5086 DIEArray die_offsets;
5088 if (m_using_apple_tables)
5090 if (m_apple_types_ap.get())
5092 const bool has_tag = m_apple_types_ap->GetHeader().header_data.ContainsAtom (DWARFMappedHash::eAtomTypeTag);
5093 const bool has_qualified_name_hash = m_apple_types_ap->GetHeader().header_data.ContainsAtom (DWARFMappedHash::eAtomTypeQualNameHash);
5094 if (has_tag && has_qualified_name_hash)
5096 const char *qualified_name = dwarf_decl_ctx.GetQualifiedName();
5097 const uint32_t qualified_name_hash = MappedHash::HashStringUsingDJB (qualified_name);
5099 GetObjectFile()->GetModule()->LogMessage (log,"FindByNameAndTagAndQualifiedNameHash()");
5100 m_apple_types_ap->FindByNameAndTagAndQualifiedNameHash (type_name.GetCString(), tag, qualified_name_hash, die_offsets);
5105 GetObjectFile()->GetModule()->LogMessage (log,"FindByNameAndTag()");
5106 m_apple_types_ap->FindByNameAndTag (type_name.GetCString(), tag, die_offsets);
5110 m_apple_types_ap->FindByName (type_name.GetCString(), die_offsets);
5119 m_type_index.Find (type_name, die_offsets);
5122 const size_t num_matches = die_offsets.size();
5125 DWARFCompileUnit* type_cu = NULL;
5126 const DWARFDebugInfoEntry* type_die = NULL;
5129 DWARFDebugInfo* debug_info = DebugInfo();
5130 for (size_t i=0; i<num_matches; ++i)
5132 const dw_offset_t die_offset = die_offsets[i];
5133 type_die = debug_info->GetDIEPtrWithCompileUnitHint (die_offset, &type_cu);
5137 bool try_resolving_type = false;
5139 // Don't try and resolve the DIE we are looking for with the DIE itself!
5140 const dw_tag_t type_tag = type_die->Tag();
5141 // Make sure the tags match
5142 if (type_tag == tag)
5144 // The tags match, lets try resolving this type
5145 try_resolving_type = true;
5149 // The tags don't match, but we need to watch our for a
5150 // forward declaration for a struct and ("struct foo")
5151 // ends up being a class ("class foo { ... };") or
5155 case DW_TAG_class_type:
5156 // We had a "class foo", see if we ended up with a "struct foo { ... };"
5157 try_resolving_type = (tag == DW_TAG_structure_type);
5159 case DW_TAG_structure_type:
5160 // We had a "struct foo", see if we ended up with a "class foo { ... };"
5161 try_resolving_type = (tag == DW_TAG_class_type);
5164 // Tags don't match, don't event try to resolve
5165 // using this type whose name matches....
5170 if (try_resolving_type)
5172 DWARFDeclContext type_dwarf_decl_ctx;
5173 type_die->GetDWARFDeclContext (this, type_cu, type_dwarf_decl_ctx);
5177 GetObjectFile()->GetModule()->LogMessage (log,
5178 "SymbolFileDWARF::FindDefinitionTypeForDWARFDeclContext(tag=%s, qualified-name='%s') trying die=0x%8.8x (%s)",
5179 DW_TAG_value_to_name(dwarf_decl_ctx[0].tag),
5180 dwarf_decl_ctx.GetQualifiedName(),
5181 type_die->GetOffset(),
5182 type_dwarf_decl_ctx.GetQualifiedName());
5185 // Make sure the decl contexts match all the way up
5186 if (dwarf_decl_ctx == type_dwarf_decl_ctx)
5188 Type *resolved_type = ResolveType (type_cu, type_die, false);
5189 if (resolved_type && resolved_type != DIE_IS_BEING_PARSED)
5191 type_sp = resolved_type->shared_from_this();
5200 std::string qualified_name;
5201 type_die->GetQualifiedName(this, type_cu, qualified_name);
5202 GetObjectFile()->GetModule()->LogMessage (log,
5203 "SymbolFileDWARF::FindDefinitionTypeForDWARFDeclContext(tag=%s, qualified-name='%s') ignoring die=0x%8.8x (%s)",
5204 DW_TAG_value_to_name(dwarf_decl_ctx[0].tag),
5205 dwarf_decl_ctx.GetQualifiedName(),
5206 type_die->GetOffset(),
5207 qualified_name.c_str());
5213 if (m_using_apple_tables)
5215 GetObjectFile()->GetModule()->ReportErrorIfModifyDetected ("the DWARF debug information has been modified (.apple_types accelerator table had bad die 0x%8.8x for '%s')\n",
5216 die_offset, type_name.GetCString());
5228 SymbolFileDWARF::CopyUniqueClassMethodTypes (SymbolFileDWARF *src_symfile,
5230 DWARFCompileUnit* src_cu,
5231 const DWARFDebugInfoEntry *src_class_die,
5232 DWARFCompileUnit* dst_cu,
5233 const DWARFDebugInfoEntry *dst_class_die,
5234 DWARFDIECollection &failures)
5236 if (!class_type || !src_cu || !src_class_die || !dst_cu || !dst_class_die)
5238 if (src_class_die->Tag() != dst_class_die->Tag())
5241 // We need to complete the class type so we can get all of the method types
5242 // parsed so we can then unique those types to their equivalent counterparts
5243 // in "dst_cu" and "dst_class_die"
5244 class_type->GetClangFullType();
5246 const DWARFDebugInfoEntry *src_die;
5247 const DWARFDebugInfoEntry *dst_die;
5248 UniqueCStringMap<const DWARFDebugInfoEntry *> src_name_to_die;
5249 UniqueCStringMap<const DWARFDebugInfoEntry *> dst_name_to_die;
5250 UniqueCStringMap<const DWARFDebugInfoEntry *> src_name_to_die_artificial;
5251 UniqueCStringMap<const DWARFDebugInfoEntry *> dst_name_to_die_artificial;
5252 for (src_die = src_class_die->GetFirstChild(); src_die != NULL; src_die = src_die->GetSibling())
5254 if (src_die->Tag() == DW_TAG_subprogram)
5256 // Make sure this is a declaration and not a concrete instance by looking
5257 // for DW_AT_declaration set to 1. Sometimes concrete function instances
5258 // are placed inside the class definitions and shouldn't be included in
5259 // the list of things are are tracking here.
5260 if (src_die->GetAttributeValueAsUnsigned(src_symfile, src_cu, DW_AT_declaration, 0) == 1)
5262 const char *src_name = src_die->GetMangledName (src_symfile, src_cu);
5265 ConstString src_const_name(src_name);
5266 if (src_die->GetAttributeValueAsUnsigned(src_symfile, src_cu, DW_AT_artificial, 0))
5267 src_name_to_die_artificial.Append(src_const_name.GetCString(), src_die);
5269 src_name_to_die.Append(src_const_name.GetCString(), src_die);
5274 for (dst_die = dst_class_die->GetFirstChild(); dst_die != NULL; dst_die = dst_die->GetSibling())
5276 if (dst_die->Tag() == DW_TAG_subprogram)
5278 // Make sure this is a declaration and not a concrete instance by looking
5279 // for DW_AT_declaration set to 1. Sometimes concrete function instances
5280 // are placed inside the class definitions and shouldn't be included in
5281 // the list of things are are tracking here.
5282 if (dst_die->GetAttributeValueAsUnsigned(this, dst_cu, DW_AT_declaration, 0) == 1)
5284 const char *dst_name = dst_die->GetMangledName (this, dst_cu);
5287 ConstString dst_const_name(dst_name);
5288 if (dst_die->GetAttributeValueAsUnsigned(this, dst_cu, DW_AT_artificial, 0))
5289 dst_name_to_die_artificial.Append(dst_const_name.GetCString(), dst_die);
5291 dst_name_to_die.Append(dst_const_name.GetCString(), dst_die);
5296 const uint32_t src_size = src_name_to_die.GetSize ();
5297 const uint32_t dst_size = dst_name_to_die.GetSize ();
5298 Log *log (LogChannelDWARF::GetLogIfAny(DWARF_LOG_DEBUG_INFO | DWARF_LOG_TYPE_COMPLETION));
5300 // Is everything kosher so we can go through the members at top speed?
5301 bool fast_path = true;
5303 if (src_size != dst_size)
5305 if (src_size != 0 && dst_size != 0)
5308 log->Printf("warning: trying to unique class DIE 0x%8.8x to 0x%8.8x, but they didn't have the same size (src=%d, dst=%d)",
5309 src_class_die->GetOffset(),
5310 dst_class_die->GetOffset(),
5322 for (idx = 0; idx < src_size; ++idx)
5324 src_die = src_name_to_die.GetValueAtIndexUnchecked (idx);
5325 dst_die = dst_name_to_die.GetValueAtIndexUnchecked (idx);
5327 if (src_die->Tag() != dst_die->Tag())
5330 log->Printf("warning: tried to unique class DIE 0x%8.8x to 0x%8.8x, but 0x%8.8x (%s) tags didn't match 0x%8.8x (%s)",
5331 src_class_die->GetOffset(),
5332 dst_class_die->GetOffset(),
5333 src_die->GetOffset(),
5334 DW_TAG_value_to_name(src_die->Tag()),
5335 dst_die->GetOffset(),
5336 DW_TAG_value_to_name(src_die->Tag()));
5340 const char *src_name = src_die->GetMangledName (src_symfile, src_cu);
5341 const char *dst_name = dst_die->GetMangledName (this, dst_cu);
5343 // Make sure the names match
5344 if (src_name == dst_name || (strcmp (src_name, dst_name) == 0))
5348 log->Printf("warning: tried to unique class DIE 0x%8.8x to 0x%8.8x, but 0x%8.8x (%s) names didn't match 0x%8.8x (%s)",
5349 src_class_die->GetOffset(),
5350 dst_class_die->GetOffset(),
5351 src_die->GetOffset(),
5353 dst_die->GetOffset(),
5360 // Now do the work of linking the DeclContexts and Types.
5363 // We can do this quickly. Just run across the tables index-for-index since
5364 // we know each node has matching names and tags.
5365 for (idx = 0; idx < src_size; ++idx)
5367 src_die = src_name_to_die.GetValueAtIndexUnchecked (idx);
5368 dst_die = dst_name_to_die.GetValueAtIndexUnchecked (idx);
5370 clang::DeclContext *src_decl_ctx = src_symfile->m_die_to_decl_ctx[src_die];
5374 log->Printf ("uniquing decl context %p from 0x%8.8x for 0x%8.8x",
5375 static_cast<void*>(src_decl_ctx),
5376 src_die->GetOffset(), dst_die->GetOffset());
5377 LinkDeclContextToDIE (src_decl_ctx, dst_die);
5382 log->Printf ("warning: tried to unique decl context from 0x%8.8x for 0x%8.8x, but none was found",
5383 src_die->GetOffset(), dst_die->GetOffset());
5386 Type *src_child_type = m_die_to_type[src_die];
5390 log->Printf ("uniquing type %p (uid=0x%" PRIx64 ") from 0x%8.8x for 0x%8.8x",
5391 static_cast<void*>(src_child_type),
5392 src_child_type->GetID(),
5393 src_die->GetOffset(), dst_die->GetOffset());
5394 m_die_to_type[dst_die] = src_child_type;
5399 log->Printf ("warning: tried to unique lldb_private::Type from 0x%8.8x for 0x%8.8x, but none was found", src_die->GetOffset(), dst_die->GetOffset());
5405 // We must do this slowly. For each member of the destination, look
5406 // up a member in the source with the same name, check its tag, and
5407 // unique them if everything matches up. Report failures.
5409 if (!src_name_to_die.IsEmpty() && !dst_name_to_die.IsEmpty())
5411 src_name_to_die.Sort();
5413 for (idx = 0; idx < dst_size; ++idx)
5415 const char *dst_name = dst_name_to_die.GetCStringAtIndex(idx);
5416 dst_die = dst_name_to_die.GetValueAtIndexUnchecked(idx);
5417 src_die = src_name_to_die.Find(dst_name, NULL);
5419 if (src_die && (src_die->Tag() == dst_die->Tag()))
5421 clang::DeclContext *src_decl_ctx = src_symfile->m_die_to_decl_ctx[src_die];
5425 log->Printf ("uniquing decl context %p from 0x%8.8x for 0x%8.8x",
5426 static_cast<void*>(src_decl_ctx),
5427 src_die->GetOffset(),
5428 dst_die->GetOffset());
5429 LinkDeclContextToDIE (src_decl_ctx, dst_die);
5434 log->Printf ("warning: tried to unique decl context from 0x%8.8x for 0x%8.8x, but none was found", src_die->GetOffset(), dst_die->GetOffset());
5437 Type *src_child_type = m_die_to_type[src_die];
5441 log->Printf ("uniquing type %p (uid=0x%" PRIx64 ") from 0x%8.8x for 0x%8.8x",
5442 static_cast<void*>(src_child_type),
5443 src_child_type->GetID(),
5444 src_die->GetOffset(),
5445 dst_die->GetOffset());
5446 m_die_to_type[dst_die] = src_child_type;
5451 log->Printf ("warning: tried to unique lldb_private::Type from 0x%8.8x for 0x%8.8x, but none was found", src_die->GetOffset(), dst_die->GetOffset());
5457 log->Printf ("warning: couldn't find a match for 0x%8.8x", dst_die->GetOffset());
5459 failures.Append(dst_die);
5465 const uint32_t src_size_artificial = src_name_to_die_artificial.GetSize ();
5466 const uint32_t dst_size_artificial = dst_name_to_die_artificial.GetSize ();
5468 UniqueCStringMap<const DWARFDebugInfoEntry *> name_to_die_artificial_not_in_src;
5470 if (src_size_artificial && dst_size_artificial)
5472 dst_name_to_die_artificial.Sort();
5474 for (idx = 0; idx < src_size_artificial; ++idx)
5476 const char *src_name_artificial = src_name_to_die_artificial.GetCStringAtIndex(idx);
5477 src_die = src_name_to_die_artificial.GetValueAtIndexUnchecked (idx);
5478 dst_die = dst_name_to_die_artificial.Find(src_name_artificial, NULL);
5482 // Both classes have the artificial types, link them
5483 clang::DeclContext *src_decl_ctx = m_die_to_decl_ctx[src_die];
5487 log->Printf ("uniquing decl context %p from 0x%8.8x for 0x%8.8x",
5488 static_cast<void*>(src_decl_ctx),
5489 src_die->GetOffset(), dst_die->GetOffset());
5490 LinkDeclContextToDIE (src_decl_ctx, dst_die);
5495 log->Printf ("warning: tried to unique decl context from 0x%8.8x for 0x%8.8x, but none was found", src_die->GetOffset(), dst_die->GetOffset());
5498 Type *src_child_type = m_die_to_type[src_die];
5502 log->Printf ("uniquing type %p (uid=0x%" PRIx64 ") from 0x%8.8x for 0x%8.8x",
5503 static_cast<void*>(src_child_type),
5504 src_child_type->GetID(),
5505 src_die->GetOffset(), dst_die->GetOffset());
5506 m_die_to_type[dst_die] = src_child_type;
5511 log->Printf ("warning: tried to unique lldb_private::Type from 0x%8.8x for 0x%8.8x, but none was found", src_die->GetOffset(), dst_die->GetOffset());
5517 if (dst_size_artificial)
5519 for (idx = 0; idx < dst_size_artificial; ++idx)
5521 const char *dst_name_artificial = dst_name_to_die_artificial.GetCStringAtIndex(idx);
5522 dst_die = dst_name_to_die_artificial.GetValueAtIndexUnchecked (idx);
5524 log->Printf ("warning: need to create artificial method for 0x%8.8x for method '%s'", dst_die->GetOffset(), dst_name_artificial);
5526 failures.Append(dst_die);
5530 return (failures.Size() != 0);
5534 SymbolFileDWARF::ParseType (const SymbolContext& sc, DWARFCompileUnit* dwarf_cu, const DWARFDebugInfoEntry *die, bool *type_is_new_ptr)
5538 if (type_is_new_ptr)
5539 *type_is_new_ptr = false;
5541 #if defined(LLDB_CONFIGURATION_DEBUG) || defined(LLDB_CONFIGURATION_RELEASE)
5542 static DIEStack g_die_stack;
5543 DIEStack::ScopedPopper scoped_die_logger(g_die_stack);
5546 AccessType accessibility = eAccessNone;
5549 Log *log (LogChannelDWARF::GetLogIfAll(DWARF_LOG_DEBUG_INFO));
5552 const DWARFDebugInfoEntry *context_die;
5553 clang::DeclContext *context = GetClangDeclContextContainingDIE (dwarf_cu, die, &context_die);
5555 GetObjectFile()->GetModule()->LogMessage (log, "SymbolFileDWARF::ParseType (die = 0x%8.8x, decl_ctx = %p (die 0x%8.8x)) %s name = '%s')",
5557 static_cast<void*>(context),
5558 context_die->GetOffset(),
5559 DW_TAG_value_to_name(die->Tag()),
5560 die->GetName(this, dwarf_cu));
5562 #if defined(LLDB_CONFIGURATION_DEBUG) || defined(LLDB_CONFIGURATION_RELEASE)
5563 scoped_die_logger.Push (dwarf_cu, die);
5564 g_die_stack.LogDIEs(log, this);
5568 // Log *log (LogChannelDWARF::GetLogIfAll(DWARF_LOG_DEBUG_INFO));
5569 // if (log && dwarf_cu)
5572 // die->DumpLocation (this, dwarf_cu, s);
5573 // GetObjectFile()->GetModule()->LogMessage (log, "SymbolFileDwarf::%s %s", __FUNCTION__, s.GetData());
5577 Type *type_ptr = m_die_to_type.lookup (die);
5578 TypeList* type_list = GetTypeList();
5579 if (type_ptr == NULL)
5581 ClangASTContext &ast = GetClangASTContext();
5582 if (type_is_new_ptr)
5583 *type_is_new_ptr = true;
5585 const dw_tag_t tag = die->Tag();
5587 bool is_forward_declaration = false;
5588 DWARFDebugInfoEntry::Attributes attributes;
5589 const char *type_name_cstr = NULL;
5590 ConstString type_name_const_str;
5591 Type::ResolveState resolve_state = Type::eResolveStateUnresolved;
5592 uint64_t byte_size = 0;
5595 Type::EncodingDataType encoding_data_type = Type::eEncodingIsUID;
5596 ClangASTType clang_type;
5597 DWARFFormValue form_value;
5603 case DW_TAG_base_type:
5604 case DW_TAG_pointer_type:
5605 case DW_TAG_reference_type:
5606 case DW_TAG_rvalue_reference_type:
5607 case DW_TAG_typedef:
5608 case DW_TAG_const_type:
5609 case DW_TAG_restrict_type:
5610 case DW_TAG_volatile_type:
5611 case DW_TAG_unspecified_type:
5613 // Set a bit that lets us know that we are currently parsing this
5614 m_die_to_type[die] = DIE_IS_BEING_PARSED;
5616 const size_t num_attributes = die->GetAttributes(this, dwarf_cu, NULL, attributes);
5617 uint32_t encoding = 0;
5618 lldb::user_id_t encoding_uid = LLDB_INVALID_UID;
5620 if (num_attributes > 0)
5623 for (i=0; i<num_attributes; ++i)
5625 attr = attributes.AttributeAtIndex(i);
5626 if (attributes.ExtractFormValueAtIndex(this, i, form_value))
5630 case DW_AT_decl_file: decl.SetFile(sc.comp_unit->GetSupportFiles().GetFileSpecAtIndex(form_value.Unsigned())); break;
5631 case DW_AT_decl_line: decl.SetLine(form_value.Unsigned()); break;
5632 case DW_AT_decl_column: decl.SetColumn(form_value.Unsigned()); break;
5635 type_name_cstr = form_value.AsCString(&get_debug_str_data());
5636 // Work around a bug in llvm-gcc where they give a name to a reference type which doesn't
5637 // include the "&"...
5638 if (tag == DW_TAG_reference_type)
5640 if (strchr (type_name_cstr, '&') == NULL)
5641 type_name_cstr = NULL;
5644 type_name_const_str.SetCString(type_name_cstr);
5646 case DW_AT_byte_size: byte_size = form_value.Unsigned(); break;
5647 case DW_AT_encoding: encoding = form_value.Unsigned(); break;
5648 case DW_AT_type: encoding_uid = form_value.Reference(); break;
5657 DEBUG_PRINTF ("0x%8.8" PRIx64 ": %s (\"%s\") type => 0x%8.8lx\n", MakeUserID(die->GetOffset()), DW_TAG_value_to_name(tag), type_name_cstr, encoding_uid);
5664 case DW_TAG_unspecified_type:
5665 if (strcmp(type_name_cstr, "nullptr_t") == 0 ||
5666 strcmp(type_name_cstr, "decltype(nullptr)") == 0 )
5668 resolve_state = Type::eResolveStateFull;
5669 clang_type = ast.GetBasicType(eBasicTypeNullPtr);
5672 // Fall through to base type below in case we can handle the type there...
5674 case DW_TAG_base_type:
5675 resolve_state = Type::eResolveStateFull;
5676 clang_type = ast.GetBuiltinTypeForDWARFEncodingAndBitSize (type_name_cstr,
5681 case DW_TAG_pointer_type: encoding_data_type = Type::eEncodingIsPointerUID; break;
5682 case DW_TAG_reference_type: encoding_data_type = Type::eEncodingIsLValueReferenceUID; break;
5683 case DW_TAG_rvalue_reference_type: encoding_data_type = Type::eEncodingIsRValueReferenceUID; break;
5684 case DW_TAG_typedef: encoding_data_type = Type::eEncodingIsTypedefUID; break;
5685 case DW_TAG_const_type: encoding_data_type = Type::eEncodingIsConstUID; break;
5686 case DW_TAG_restrict_type: encoding_data_type = Type::eEncodingIsRestrictUID; break;
5687 case DW_TAG_volatile_type: encoding_data_type = Type::eEncodingIsVolatileUID; break;
5690 if (!clang_type && (encoding_data_type == Type::eEncodingIsPointerUID || encoding_data_type == Type::eEncodingIsTypedefUID) && sc.comp_unit != NULL)
5692 bool translation_unit_is_objc = (sc.comp_unit->GetLanguage() == eLanguageTypeObjC || sc.comp_unit->GetLanguage() == eLanguageTypeObjC_plus_plus);
5694 if (translation_unit_is_objc)
5696 if (type_name_cstr != NULL)
5698 static ConstString g_objc_type_name_id("id");
5699 static ConstString g_objc_type_name_Class("Class");
5700 static ConstString g_objc_type_name_selector("SEL");
5702 if (type_name_const_str == g_objc_type_name_id)
5705 GetObjectFile()->GetModule()->LogMessage (log, "SymbolFileDWARF::ParseType (die = 0x%8.8x) %s '%s' is Objective C 'id' built-in type.",
5707 DW_TAG_value_to_name(die->Tag()),
5708 die->GetName(this, dwarf_cu));
5709 clang_type = ast.GetBasicType(eBasicTypeObjCID);
5710 encoding_data_type = Type::eEncodingIsUID;
5711 encoding_uid = LLDB_INVALID_UID;
5712 resolve_state = Type::eResolveStateFull;
5715 else if (type_name_const_str == g_objc_type_name_Class)
5718 GetObjectFile()->GetModule()->LogMessage (log, "SymbolFileDWARF::ParseType (die = 0x%8.8x) %s '%s' is Objective C 'Class' built-in type.",
5720 DW_TAG_value_to_name(die->Tag()),
5721 die->GetName(this, dwarf_cu));
5722 clang_type = ast.GetBasicType(eBasicTypeObjCClass);
5723 encoding_data_type = Type::eEncodingIsUID;
5724 encoding_uid = LLDB_INVALID_UID;
5725 resolve_state = Type::eResolveStateFull;
5727 else if (type_name_const_str == g_objc_type_name_selector)
5730 GetObjectFile()->GetModule()->LogMessage (log, "SymbolFileDWARF::ParseType (die = 0x%8.8x) %s '%s' is Objective C 'selector' built-in type.",
5732 DW_TAG_value_to_name(die->Tag()),
5733 die->GetName(this, dwarf_cu));
5734 clang_type = ast.GetBasicType(eBasicTypeObjCSel);
5735 encoding_data_type = Type::eEncodingIsUID;
5736 encoding_uid = LLDB_INVALID_UID;
5737 resolve_state = Type::eResolveStateFull;
5740 else if (encoding_data_type == Type::eEncodingIsPointerUID && encoding_uid != LLDB_INVALID_UID)
5742 // Clang sometimes erroneously emits id as objc_object*. In that case we fix up the type to "id".
5744 DWARFDebugInfoEntry* encoding_die = dwarf_cu->GetDIEPtr(encoding_uid);
5746 if (encoding_die && encoding_die->Tag() == DW_TAG_structure_type)
5748 if (const char *struct_name = encoding_die->GetAttributeValueAsString(this, dwarf_cu, DW_AT_name, NULL))
5750 if (!strcmp(struct_name, "objc_object"))
5753 GetObjectFile()->GetModule()->LogMessage (log, "SymbolFileDWARF::ParseType (die = 0x%8.8x) %s '%s' is 'objc_object*', which we overrode to 'id'.",
5755 DW_TAG_value_to_name(die->Tag()),
5756 die->GetName(this, dwarf_cu));
5757 clang_type = ast.GetBasicType(eBasicTypeObjCID);
5758 encoding_data_type = Type::eEncodingIsUID;
5759 encoding_uid = LLDB_INVALID_UID;
5760 resolve_state = Type::eResolveStateFull;
5768 type_sp.reset( new Type (MakeUserID(die->GetOffset()),
5770 type_name_const_str,
5779 m_die_to_type[die] = type_sp.get();
5781 // Type* encoding_type = GetUniquedTypeForDIEOffset(encoding_uid, type_sp, NULL, 0, 0, false);
5782 // if (encoding_type != NULL)
5784 // if (encoding_type != DIE_IS_BEING_PARSED)
5785 // type_sp->SetEncodingType(encoding_type);
5787 // m_indirect_fixups.push_back(type_sp.get());
5792 case DW_TAG_structure_type:
5793 case DW_TAG_union_type:
5794 case DW_TAG_class_type:
5796 // Set a bit that lets us know that we are currently parsing this
5797 m_die_to_type[die] = DIE_IS_BEING_PARSED;
5798 bool byte_size_valid = false;
5800 LanguageType class_language = eLanguageTypeUnknown;
5801 bool is_complete_objc_class = false;
5802 //bool struct_is_class = false;
5803 const size_t num_attributes = die->GetAttributes(this, dwarf_cu, NULL, attributes);
5804 if (num_attributes > 0)
5807 for (i=0; i<num_attributes; ++i)
5809 attr = attributes.AttributeAtIndex(i);
5810 if (attributes.ExtractFormValueAtIndex(this, i, form_value))
5814 case DW_AT_decl_file:
5815 if (dwarf_cu->DW_AT_decl_file_attributes_are_invalid())
5817 // llvm-gcc outputs invalid DW_AT_decl_file attributes that always
5818 // point to the compile unit file, so we clear this invalid value
5819 // so that we can still unique types efficiently.
5820 decl.SetFile(FileSpec ("<invalid>", false));
5823 decl.SetFile(sc.comp_unit->GetSupportFiles().GetFileSpecAtIndex(form_value.Unsigned()));
5826 case DW_AT_decl_line:
5827 decl.SetLine(form_value.Unsigned());
5830 case DW_AT_decl_column:
5831 decl.SetColumn(form_value.Unsigned());
5835 type_name_cstr = form_value.AsCString(&get_debug_str_data());
5836 type_name_const_str.SetCString(type_name_cstr);
5839 case DW_AT_byte_size:
5840 byte_size = form_value.Unsigned();
5841 byte_size_valid = true;
5844 case DW_AT_accessibility:
5845 accessibility = DW_ACCESS_to_AccessType(form_value.Unsigned());
5848 case DW_AT_declaration:
5849 is_forward_declaration = form_value.Boolean();
5852 case DW_AT_APPLE_runtime_class:
5853 class_language = (LanguageType)form_value.Signed();
5856 case DW_AT_APPLE_objc_complete_type:
5857 is_complete_objc_class = form_value.Signed();
5860 case DW_AT_allocated:
5861 case DW_AT_associated:
5862 case DW_AT_data_location:
5863 case DW_AT_description:
5864 case DW_AT_start_scope:
5865 case DW_AT_visibility:
5874 // UniqueDWARFASTType is large, so don't create a local variables on the
5875 // stack, put it on the heap. This function is often called recursively
5876 // and clang isn't good and sharing the stack space for variables in different blocks.
5877 std::unique_ptr<UniqueDWARFASTType> unique_ast_entry_ap(new UniqueDWARFASTType());
5879 // Only try and unique the type if it has a name.
5880 if (type_name_const_str &&
5881 GetUniqueDWARFASTTypeMap().Find (type_name_const_str,
5886 byte_size_valid ? byte_size : -1,
5887 *unique_ast_entry_ap))
5889 // We have already parsed this type or from another
5890 // compile unit. GCC loves to use the "one definition
5891 // rule" which can result in multiple definitions
5892 // of the same class over and over in each compile
5894 type_sp = unique_ast_entry_ap->m_type_sp;
5897 m_die_to_type[die] = type_sp.get();
5902 DEBUG_PRINTF ("0x%8.8" PRIx64 ": %s (\"%s\")\n", MakeUserID(die->GetOffset()), DW_TAG_value_to_name(tag), type_name_cstr);
5904 int tag_decl_kind = -1;
5905 AccessType default_accessibility = eAccessNone;
5906 if (tag == DW_TAG_structure_type)
5908 tag_decl_kind = clang::TTK_Struct;
5909 default_accessibility = eAccessPublic;
5911 else if (tag == DW_TAG_union_type)
5913 tag_decl_kind = clang::TTK_Union;
5914 default_accessibility = eAccessPublic;
5916 else if (tag == DW_TAG_class_type)
5918 tag_decl_kind = clang::TTK_Class;
5919 default_accessibility = eAccessPrivate;
5922 if (byte_size_valid && byte_size == 0 && type_name_cstr &&
5923 die->HasChildren() == false &&
5924 sc.comp_unit->GetLanguage() == eLanguageTypeObjC)
5926 // Work around an issue with clang at the moment where
5927 // forward declarations for objective C classes are emitted
5929 // DW_TAG_structure_type [2]
5930 // DW_AT_name( "ForwardObjcClass" )
5931 // DW_AT_byte_size( 0x00 )
5932 // DW_AT_decl_file( "..." )
5933 // DW_AT_decl_line( 1 )
5935 // Note that there is no DW_AT_declaration and there are
5936 // no children, and the byte size is zero.
5937 is_forward_declaration = true;
5940 if (class_language == eLanguageTypeObjC ||
5941 class_language == eLanguageTypeObjC_plus_plus)
5943 if (!is_complete_objc_class && Supports_DW_AT_APPLE_objc_complete_type(dwarf_cu))
5945 // We have a valid eSymbolTypeObjCClass class symbol whose
5946 // name matches the current objective C class that we
5947 // are trying to find and this DIE isn't the complete
5948 // definition (we checked is_complete_objc_class above and
5949 // know it is false), so the real definition is in here somewhere
5950 type_sp = FindCompleteObjCDefinitionTypeForDIE (die, type_name_const_str, true);
5952 if (!type_sp && GetDebugMapSymfile ())
5954 // We weren't able to find a full declaration in
5955 // this DWARF, see if we have a declaration anywhere
5957 type_sp = m_debug_map_symfile->FindCompleteObjCDefinitionTypeForDIE (die, type_name_const_str, true);
5964 GetObjectFile()->GetModule()->LogMessage (log,
5965 "SymbolFileDWARF(%p) - 0x%8.8x: %s type \"%s\" is an incomplete objc type, complete type is 0x%8.8" PRIx64,
5966 static_cast<void*>(this),
5968 DW_TAG_value_to_name(tag),
5973 // We found a real definition for this type elsewhere
5974 // so lets use it and cache the fact that we found
5975 // a complete type for this die
5976 m_die_to_type[die] = type_sp.get();
5983 if (is_forward_declaration)
5985 // We have a forward declaration to a type and we need
5986 // to try and find a full declaration. We look in the
5987 // current type index just in case we have a forward
5988 // declaration followed by an actual declarations in the
5989 // DWARF. If this fails, we need to look elsewhere...
5992 GetObjectFile()->GetModule()->LogMessage (log,
5993 "SymbolFileDWARF(%p) - 0x%8.8x: %s type \"%s\" is a forward declaration, trying to find complete type",
5994 static_cast<void*>(this),
5996 DW_TAG_value_to_name(tag),
6000 DWARFDeclContext die_decl_ctx;
6001 die->GetDWARFDeclContext(this, dwarf_cu, die_decl_ctx);
6003 //type_sp = FindDefinitionTypeForDIE (dwarf_cu, die, type_name_const_str);
6004 type_sp = FindDefinitionTypeForDWARFDeclContext (die_decl_ctx);
6006 if (!type_sp && GetDebugMapSymfile ())
6008 // We weren't able to find a full declaration in
6009 // this DWARF, see if we have a declaration anywhere
6011 type_sp = m_debug_map_symfile->FindDefinitionTypeForDWARFDeclContext (die_decl_ctx);
6018 GetObjectFile()->GetModule()->LogMessage (log,
6019 "SymbolFileDWARF(%p) - 0x%8.8x: %s type \"%s\" is a forward declaration, complete type is 0x%8.8" PRIx64,
6020 static_cast<void*>(this),
6022 DW_TAG_value_to_name(tag),
6027 // We found a real definition for this type elsewhere
6028 // so lets use it and cache the fact that we found
6029 // a complete type for this die
6030 m_die_to_type[die] = type_sp.get();
6034 assert (tag_decl_kind != -1);
6035 bool clang_type_was_created = false;
6036 clang_type.SetClangType(ast.getASTContext(), m_forward_decl_die_to_clang_type.lookup (die));
6039 const DWARFDebugInfoEntry *decl_ctx_die;
6041 clang::DeclContext *decl_ctx = GetClangDeclContextContainingDIE (dwarf_cu, die, &decl_ctx_die);
6042 if (accessibility == eAccessNone && decl_ctx)
6044 // Check the decl context that contains this class/struct/union.
6045 // If it is a class we must give it an accessibility.
6046 const clang::Decl::Kind containing_decl_kind = decl_ctx->getDeclKind();
6047 if (DeclKindIsCXXClass (containing_decl_kind))
6048 accessibility = default_accessibility;
6051 ClangASTMetadata metadata;
6052 metadata.SetUserID(MakeUserID(die->GetOffset()));
6053 metadata.SetIsDynamicCXXType(ClassOrStructIsVirtual (dwarf_cu, die));
6055 if (type_name_cstr && strchr (type_name_cstr, '<'))
6057 ClangASTContext::TemplateParameterInfos template_param_infos;
6058 if (ParseTemplateParameterInfos (dwarf_cu, die, template_param_infos))
6060 clang::ClassTemplateDecl *class_template_decl = ParseClassTemplateDecl (decl_ctx,
6064 template_param_infos);
6066 clang::ClassTemplateSpecializationDecl *class_specialization_decl = ast.CreateClassTemplateSpecializationDecl (decl_ctx,
6067 class_template_decl,
6069 template_param_infos);
6070 clang_type = ast.CreateClassTemplateSpecializationType (class_specialization_decl);
6071 clang_type_was_created = true;
6073 GetClangASTContext().SetMetadata (class_template_decl, metadata);
6074 GetClangASTContext().SetMetadata (class_specialization_decl, metadata);
6078 if (!clang_type_was_created)
6080 clang_type_was_created = true;
6081 clang_type = ast.CreateRecordType (decl_ctx,
6090 // Store a forward declaration to this class type in case any
6091 // parameters in any class methods need it for the clang
6092 // types for function prototypes.
6093 LinkDeclContextToDIE(clang_type.GetDeclContextForType(), die);
6094 type_sp.reset (new Type (MakeUserID(die->GetOffset()),
6096 type_name_const_str,
6100 Type::eEncodingIsUID,
6103 Type::eResolveStateForward));
6105 type_sp->SetIsCompleteObjCClass(is_complete_objc_class);
6108 // Add our type to the unique type map so we don't
6109 // end up creating many copies of the same type over
6110 // and over in the ASTContext for our module
6111 unique_ast_entry_ap->m_type_sp = type_sp;
6112 unique_ast_entry_ap->m_symfile = this;
6113 unique_ast_entry_ap->m_cu = dwarf_cu;
6114 unique_ast_entry_ap->m_die = die;
6115 unique_ast_entry_ap->m_declaration = decl;
6116 unique_ast_entry_ap->m_byte_size = byte_size;
6117 GetUniqueDWARFASTTypeMap().Insert (type_name_const_str,
6118 *unique_ast_entry_ap);
6120 if (is_forward_declaration && die->HasChildren())
6122 // Check to see if the DIE actually has a definition, some version of GCC will
6123 // emit DIEs with DW_AT_declaration set to true, but yet still have subprogram,
6124 // members, or inheritance, so we can't trust it
6125 const DWARFDebugInfoEntry *child_die = die->GetFirstChild();
6128 switch (child_die->Tag())
6130 case DW_TAG_inheritance:
6131 case DW_TAG_subprogram:
6133 case DW_TAG_APPLE_property:
6134 case DW_TAG_class_type:
6135 case DW_TAG_structure_type:
6136 case DW_TAG_enumeration_type:
6137 case DW_TAG_typedef:
6138 case DW_TAG_union_type:
6140 is_forward_declaration = false;
6143 child_die = child_die->GetSibling();
6149 if (!is_forward_declaration)
6151 // Always start the definition for a class type so that
6152 // if the class has child classes or types that require
6153 // the class to be created for use as their decl contexts
6154 // the class will be ready to accept these child definitions.
6155 if (die->HasChildren() == false)
6157 // No children for this struct/union/class, lets finish it
6158 clang_type.StartTagDeclarationDefinition ();
6159 clang_type.CompleteTagDeclarationDefinition ();
6161 if (tag == DW_TAG_structure_type) // this only applies in C
6163 clang::RecordDecl *record_decl = clang_type.GetAsRecordDecl();
6166 m_record_decl_to_layout_map.insert(std::make_pair(record_decl, LayoutInfo()));
6169 else if (clang_type_was_created)
6171 // Start the definition if the class is not objective C since
6172 // the underlying decls respond to isCompleteDefinition(). Objective
6173 // C decls don't respond to isCompleteDefinition() so we can't
6174 // start the declaration definition right away. For C++ class/union/structs
6175 // we want to start the definition in case the class is needed as the
6176 // declaration context for a contained class or type without the need
6177 // to complete that type..
6179 if (class_language != eLanguageTypeObjC &&
6180 class_language != eLanguageTypeObjC_plus_plus)
6181 clang_type.StartTagDeclarationDefinition ();
6183 // Leave this as a forward declaration until we need
6184 // to know the details of the type. lldb_private::Type
6185 // will automatically call the SymbolFile virtual function
6186 // "SymbolFileDWARF::ResolveClangOpaqueTypeDefinition(Type *)"
6187 // When the definition needs to be defined.
6188 m_forward_decl_die_to_clang_type[die] = clang_type.GetOpaqueQualType();
6189 m_forward_decl_clang_type_to_die[clang_type.RemoveFastQualifiers().GetOpaqueQualType()] = die;
6190 clang_type.SetHasExternalStorage (true);
6197 case DW_TAG_enumeration_type:
6199 // Set a bit that lets us know that we are currently parsing this
6200 m_die_to_type[die] = DIE_IS_BEING_PARSED;
6202 lldb::user_id_t encoding_uid = DW_INVALID_OFFSET;
6204 const size_t num_attributes = die->GetAttributes(this, dwarf_cu, NULL, attributes);
6205 if (num_attributes > 0)
6209 for (i=0; i<num_attributes; ++i)
6211 attr = attributes.AttributeAtIndex(i);
6212 if (attributes.ExtractFormValueAtIndex(this, i, form_value))
6216 case DW_AT_decl_file: decl.SetFile(sc.comp_unit->GetSupportFiles().GetFileSpecAtIndex(form_value.Unsigned())); break;
6217 case DW_AT_decl_line: decl.SetLine(form_value.Unsigned()); break;
6218 case DW_AT_decl_column: decl.SetColumn(form_value.Unsigned()); break;
6220 type_name_cstr = form_value.AsCString(&get_debug_str_data());
6221 type_name_const_str.SetCString(type_name_cstr);
6223 case DW_AT_type: encoding_uid = form_value.Reference(); break;
6224 case DW_AT_byte_size: byte_size = form_value.Unsigned(); break;
6225 case DW_AT_accessibility: break; //accessibility = DW_ACCESS_to_AccessType(form_value.Unsigned()); break;
6226 case DW_AT_declaration: break; //is_forward_declaration = form_value.Boolean(); break;
6227 case DW_AT_allocated:
6228 case DW_AT_associated:
6229 case DW_AT_bit_stride:
6230 case DW_AT_byte_stride:
6231 case DW_AT_data_location:
6232 case DW_AT_description:
6233 case DW_AT_start_scope:
6234 case DW_AT_visibility:
6235 case DW_AT_specification:
6236 case DW_AT_abstract_origin:
6243 DEBUG_PRINTF ("0x%8.8" PRIx64 ": %s (\"%s\")\n", MakeUserID(die->GetOffset()), DW_TAG_value_to_name(tag), type_name_cstr);
6245 ClangASTType enumerator_clang_type;
6246 clang_type.SetClangType (ast.getASTContext(), m_forward_decl_die_to_clang_type.lookup (die));
6249 if (encoding_uid != DW_INVALID_OFFSET)
6251 Type *enumerator_type = ResolveTypeUID(encoding_uid);
6252 if (enumerator_type)
6253 enumerator_clang_type = enumerator_type->GetClangFullType();
6256 if (!enumerator_clang_type)
6257 enumerator_clang_type = ast.GetBuiltinTypeForDWARFEncodingAndBitSize (NULL,
6261 clang_type = ast.CreateEnumerationType (type_name_cstr,
6262 GetClangDeclContextContainingDIE (dwarf_cu, die, NULL),
6264 enumerator_clang_type);
6268 enumerator_clang_type = clang_type.GetEnumerationIntegerType ();
6271 LinkDeclContextToDIE(clang_type.GetDeclContextForType(), die);
6273 type_sp.reset( new Type (MakeUserID(die->GetOffset()),
6275 type_name_const_str,
6279 Type::eEncodingIsUID,
6282 Type::eResolveStateForward));
6284 clang_type.StartTagDeclarationDefinition ();
6285 if (die->HasChildren())
6287 SymbolContext cu_sc(GetCompUnitForDWARFCompUnit(dwarf_cu));
6288 bool is_signed = false;
6289 enumerator_clang_type.IsIntegerType(is_signed);
6290 ParseChildEnumerators(cu_sc, clang_type, is_signed, type_sp->GetByteSize(), dwarf_cu, die);
6292 clang_type.CompleteTagDeclarationDefinition ();
6297 case DW_TAG_inlined_subroutine:
6298 case DW_TAG_subprogram:
6299 case DW_TAG_subroutine_type:
6301 // Set a bit that lets us know that we are currently parsing this
6302 m_die_to_type[die] = DIE_IS_BEING_PARSED;
6304 //const char *mangled = NULL;
6305 dw_offset_t type_die_offset = DW_INVALID_OFFSET;
6306 bool is_variadic = false;
6307 bool is_inline = false;
6308 bool is_static = false;
6309 bool is_virtual = false;
6310 bool is_explicit = false;
6311 bool is_artificial = false;
6312 dw_offset_t specification_die_offset = DW_INVALID_OFFSET;
6313 dw_offset_t abstract_origin_die_offset = DW_INVALID_OFFSET;
6314 dw_offset_t object_pointer_die_offset = DW_INVALID_OFFSET;
6316 unsigned type_quals = 0;
6317 clang::StorageClass storage = clang::SC_None;//, Extern, Static, PrivateExtern
6320 const size_t num_attributes = die->GetAttributes(this, dwarf_cu, NULL, attributes);
6321 if (num_attributes > 0)
6324 for (i=0; i<num_attributes; ++i)
6326 attr = attributes.AttributeAtIndex(i);
6327 if (attributes.ExtractFormValueAtIndex(this, i, form_value))
6331 case DW_AT_decl_file: decl.SetFile(sc.comp_unit->GetSupportFiles().GetFileSpecAtIndex(form_value.Unsigned())); break;
6332 case DW_AT_decl_line: decl.SetLine(form_value.Unsigned()); break;
6333 case DW_AT_decl_column: decl.SetColumn(form_value.Unsigned()); break;
6335 type_name_cstr = form_value.AsCString(&get_debug_str_data());
6336 type_name_const_str.SetCString(type_name_cstr);
6339 case DW_AT_linkage_name:
6340 case DW_AT_MIPS_linkage_name: break; // mangled = form_value.AsCString(&get_debug_str_data()); break;
6341 case DW_AT_type: type_die_offset = form_value.Reference(); break;
6342 case DW_AT_accessibility: accessibility = DW_ACCESS_to_AccessType(form_value.Unsigned()); break;
6343 case DW_AT_declaration: break; // is_forward_declaration = form_value.Boolean(); break;
6344 case DW_AT_inline: is_inline = form_value.Boolean(); break;
6345 case DW_AT_virtuality: is_virtual = form_value.Boolean(); break;
6346 case DW_AT_explicit: is_explicit = form_value.Boolean(); break;
6347 case DW_AT_artificial: is_artificial = form_value.Boolean(); break;
6350 case DW_AT_external:
6351 if (form_value.Unsigned())
6353 if (storage == clang::SC_None)
6354 storage = clang::SC_Extern;
6356 storage = clang::SC_PrivateExtern;
6360 case DW_AT_specification:
6361 specification_die_offset = form_value.Reference();
6364 case DW_AT_abstract_origin:
6365 abstract_origin_die_offset = form_value.Reference();
6368 case DW_AT_object_pointer:
6369 object_pointer_die_offset = form_value.Reference();
6372 case DW_AT_allocated:
6373 case DW_AT_associated:
6374 case DW_AT_address_class:
6375 case DW_AT_calling_convention:
6376 case DW_AT_data_location:
6377 case DW_AT_elemental:
6378 case DW_AT_entry_pc:
6379 case DW_AT_frame_base:
6382 case DW_AT_prototyped:
6385 case DW_AT_recursive:
6386 case DW_AT_return_addr:
6388 case DW_AT_start_scope:
6389 case DW_AT_static_link:
6390 case DW_AT_trampoline:
6391 case DW_AT_visibility:
6392 case DW_AT_vtable_elem_location:
6393 case DW_AT_description:
6401 std::string object_pointer_name;
6402 if (object_pointer_die_offset != DW_INVALID_OFFSET)
6404 // Get the name from the object pointer die
6406 if (DWARFDebugInfoEntry::GetName (this, dwarf_cu, object_pointer_die_offset, s))
6408 object_pointer_name.assign(s.GetData());
6412 DEBUG_PRINTF ("0x%8.8" PRIx64 ": %s (\"%s\")\n", MakeUserID(die->GetOffset()), DW_TAG_value_to_name(tag), type_name_cstr);
6414 ClangASTType return_clang_type;
6415 Type *func_type = NULL;
6417 if (type_die_offset != DW_INVALID_OFFSET)
6418 func_type = ResolveTypeUID(type_die_offset);
6421 return_clang_type = func_type->GetClangForwardType();
6423 return_clang_type = ast.GetBasicType(eBasicTypeVoid);
6426 std::vector<ClangASTType> function_param_types;
6427 std::vector<clang::ParmVarDecl*> function_param_decls;
6429 // Parse the function children for the parameters
6431 const DWARFDebugInfoEntry *decl_ctx_die = NULL;
6432 clang::DeclContext *containing_decl_ctx = GetClangDeclContextContainingDIE (dwarf_cu, die, &decl_ctx_die);
6433 const clang::Decl::Kind containing_decl_kind = containing_decl_ctx->getDeclKind();
6435 const bool is_cxx_method = DeclKindIsCXXClass (containing_decl_kind);
6436 // Start off static. This will be set to false in ParseChildParameters(...)
6437 // if we find a "this" parameters as the first parameter
6441 if (die->HasChildren())
6443 bool skip_artificial = true;
6444 ParseChildParameters (sc,
6445 containing_decl_ctx,
6452 function_param_types,
6453 function_param_decls,
6457 // clang_type will get the function prototype clang type after this call
6458 clang_type = ast.CreateFunctionType (return_clang_type,
6459 function_param_types.data(),
6460 function_param_types.size(),
6464 bool ignore_containing_context = false;
6468 bool type_handled = false;
6469 if (tag == DW_TAG_subprogram)
6471 ObjCLanguageRuntime::MethodName objc_method (type_name_cstr, true);
6472 if (objc_method.IsValid(true))
6474 ClangASTType class_opaque_type;
6475 ConstString class_name(objc_method.GetClassName());
6478 TypeSP complete_objc_class_type_sp (FindCompleteObjCDefinitionTypeForDIE (NULL, class_name, false));
6480 if (complete_objc_class_type_sp)
6482 ClangASTType type_clang_forward_type = complete_objc_class_type_sp->GetClangForwardType();
6483 if (type_clang_forward_type.IsObjCObjectOrInterfaceType ())
6484 class_opaque_type = type_clang_forward_type;
6488 if (class_opaque_type)
6490 // If accessibility isn't set to anything valid, assume public for
6492 if (accessibility == eAccessNone)
6493 accessibility = eAccessPublic;
6495 clang::ObjCMethodDecl *objc_method_decl = class_opaque_type.AddMethodToObjCObjectType (type_name_cstr,
6499 type_handled = objc_method_decl != NULL;
6502 LinkDeclContextToDIE(ClangASTContext::GetAsDeclContext(objc_method_decl), die);
6503 GetClangASTContext().SetMetadataAsUserID (objc_method_decl, MakeUserID(die->GetOffset()));
6507 GetObjectFile()->GetModule()->ReportError ("{0x%8.8x}: invalid Objective-C method 0x%4.4x (%s), please file a bug and attach the file at the start of this error message",
6510 DW_TAG_value_to_name(tag));
6514 else if (is_cxx_method)
6516 // Look at the parent of this DIE and see if is is
6517 // a class or struct and see if this is actually a
6519 Type *class_type = ResolveType (dwarf_cu, decl_ctx_die);
6522 if (class_type->GetID() != MakeUserID(decl_ctx_die->GetOffset()))
6524 // We uniqued the parent class of this function to another class
6525 // so we now need to associate all dies under "decl_ctx_die" to
6526 // DIEs in the DIE for "class_type"...
6527 SymbolFileDWARF *class_symfile = NULL;
6528 DWARFCompileUnitSP class_type_cu_sp;
6529 const DWARFDebugInfoEntry *class_type_die = NULL;
6531 SymbolFileDWARFDebugMap *debug_map_symfile = GetDebugMapSymfile();
6532 if (debug_map_symfile)
6534 class_symfile = debug_map_symfile->GetSymbolFileByOSOIndex(SymbolFileDWARFDebugMap::GetOSOIndexFromUserID(class_type->GetID()));
6535 class_type_die = class_symfile->DebugInfo()->GetDIEPtr(class_type->GetID(), &class_type_cu_sp);
6539 class_symfile = this;
6540 class_type_die = DebugInfo()->GetDIEPtr(class_type->GetID(), &class_type_cu_sp);
6544 DWARFDIECollection failures;
6546 CopyUniqueClassMethodTypes (class_symfile,
6548 class_type_cu_sp.get(),
6554 // FIXME do something with these failures that's smarter than
6555 // just dropping them on the ground. Unfortunately classes don't
6556 // like having stuff added to them after their definitions are
6559 type_ptr = m_die_to_type[die];
6560 if (type_ptr && type_ptr != DIE_IS_BEING_PARSED)
6562 type_sp = type_ptr->shared_from_this();
6568 if (specification_die_offset != DW_INVALID_OFFSET)
6570 // We have a specification which we are going to base our function
6571 // prototype off of, so we need this type to be completed so that the
6572 // m_die_to_decl_ctx for the method in the specification has a valid
6573 // clang decl context.
6574 class_type->GetClangForwardType();
6575 // If we have a specification, then the function type should have been
6576 // made with the specification and not with this die.
6577 DWARFCompileUnitSP spec_cu_sp;
6578 const DWARFDebugInfoEntry* spec_die = DebugInfo()->GetDIEPtr(specification_die_offset, &spec_cu_sp);
6579 clang::DeclContext *spec_clang_decl_ctx = GetClangDeclContextForDIE (sc, dwarf_cu, spec_die);
6580 if (spec_clang_decl_ctx)
6582 LinkDeclContextToDIE(spec_clang_decl_ctx, die);
6586 GetObjectFile()->GetModule()->ReportWarning ("0x%8.8" PRIx64 ": DW_AT_specification(0x%8.8x) has no decl\n",
6587 MakeUserID(die->GetOffset()),
6588 specification_die_offset);
6590 type_handled = true;
6592 else if (abstract_origin_die_offset != DW_INVALID_OFFSET)
6594 // We have a specification which we are going to base our function
6595 // prototype off of, so we need this type to be completed so that the
6596 // m_die_to_decl_ctx for the method in the abstract origin has a valid
6597 // clang decl context.
6598 class_type->GetClangForwardType();
6600 DWARFCompileUnitSP abs_cu_sp;
6601 const DWARFDebugInfoEntry* abs_die = DebugInfo()->GetDIEPtr(abstract_origin_die_offset, &abs_cu_sp);
6602 clang::DeclContext *abs_clang_decl_ctx = GetClangDeclContextForDIE (sc, dwarf_cu, abs_die);
6603 if (abs_clang_decl_ctx)
6605 LinkDeclContextToDIE (abs_clang_decl_ctx, die);
6609 GetObjectFile()->GetModule()->ReportWarning ("0x%8.8" PRIx64 ": DW_AT_abstract_origin(0x%8.8x) has no decl\n",
6610 MakeUserID(die->GetOffset()),
6611 abstract_origin_die_offset);
6613 type_handled = true;
6617 ClangASTType class_opaque_type = class_type->GetClangForwardType();
6618 if (class_opaque_type.IsCXXClassType ())
6620 if (class_opaque_type.IsBeingDefined ())
6622 // Neither GCC 4.2 nor clang++ currently set a valid accessibility
6623 // in the DWARF for C++ methods... Default to public for now...
6624 if (accessibility == eAccessNone)
6625 accessibility = eAccessPublic;
6627 if (!is_static && !die->HasChildren())
6629 // We have a C++ member function with no children (this pointer!)
6630 // and clang will get mad if we try and make a function that isn't
6631 // well formed in the DWARF, so we will just skip it...
6632 type_handled = true;
6636 clang::CXXMethodDecl *cxx_method_decl;
6637 // REMOVE THE CRASH DESCRIPTION BELOW
6638 Host::SetCrashDescriptionWithFormat ("SymbolFileDWARF::ParseType() is adding a method %s to class %s in DIE 0x%8.8" PRIx64 " from %s",
6640 class_type->GetName().GetCString(),
6641 MakeUserID(die->GetOffset()),
6642 m_obj_file->GetFileSpec().GetPath().c_str());
6644 const bool is_attr_used = false;
6646 cxx_method_decl = class_opaque_type.AddMethodToCXXRecordType (type_name_cstr,
6656 type_handled = cxx_method_decl != NULL;
6660 LinkDeclContextToDIE(ClangASTContext::GetAsDeclContext(cxx_method_decl), die);
6662 Host::SetCrashDescription (NULL);
6665 ClangASTMetadata metadata;
6666 metadata.SetUserID(MakeUserID(die->GetOffset()));
6668 if (!object_pointer_name.empty())
6670 metadata.SetObjectPtrName(object_pointer_name.c_str());
6672 log->Printf ("Setting object pointer name: %s on method object %p.\n",
6673 object_pointer_name.c_str(),
6674 static_cast<void*>(cxx_method_decl));
6676 GetClangASTContext().SetMetadata (cxx_method_decl, metadata);
6680 ignore_containing_context = true;
6686 // We were asked to parse the type for a method in a class, yet the
6687 // class hasn't been asked to complete itself through the
6688 // clang::ExternalASTSource protocol, so we need to just have the
6689 // class complete itself and do things the right way, then our
6690 // DIE should then have an entry in the m_die_to_type map. First
6691 // we need to modify the m_die_to_type so it doesn't think we are
6692 // trying to parse this DIE anymore...
6693 m_die_to_type[die] = NULL;
6695 // Now we get the full type to force our class type to complete itself
6696 // using the clang::ExternalASTSource protocol which will parse all
6697 // base classes and all methods (including the method for this DIE).
6698 class_type->GetClangFullType();
6700 // The type for this DIE should have been filled in the function call above
6701 type_ptr = m_die_to_type[die];
6702 if (type_ptr && type_ptr != DIE_IS_BEING_PARSED)
6704 type_sp = type_ptr->shared_from_this();
6708 // FIXME This is fixing some even uglier behavior but we really need to
6709 // uniq the methods of each class as well as the class itself.
6710 // <rdar://problem/11240464>
6711 type_handled = true;
6721 // We just have a function that isn't part of a class
6722 clang::FunctionDecl *function_decl = ast.CreateFunctionDeclaration (ignore_containing_context ? GetClangASTContext().GetTranslationUnitDecl() : containing_decl_ctx,
6728 // if (template_param_infos.GetSize() > 0)
6730 // clang::FunctionTemplateDecl *func_template_decl = ast.CreateFunctionTemplateDecl (containing_decl_ctx,
6733 // template_param_infos);
6735 // ast.CreateFunctionTemplateSpecializationInfo (function_decl,
6736 // func_template_decl,
6737 // template_param_infos);
6739 // Add the decl to our DIE to decl context map
6740 assert (function_decl);
6741 LinkDeclContextToDIE(function_decl, die);
6742 if (!function_param_decls.empty())
6743 ast.SetFunctionParameters (function_decl,
6744 &function_param_decls.front(),
6745 function_param_decls.size());
6747 ClangASTMetadata metadata;
6748 metadata.SetUserID(MakeUserID(die->GetOffset()));
6750 if (!object_pointer_name.empty())
6752 metadata.SetObjectPtrName(object_pointer_name.c_str());
6754 log->Printf ("Setting object pointer name: %s on function object %p.",
6755 object_pointer_name.c_str(),
6756 static_cast<void*>(function_decl));
6758 GetClangASTContext().SetMetadata (function_decl, metadata);
6761 type_sp.reset( new Type (MakeUserID(die->GetOffset()),
6763 type_name_const_str,
6767 Type::eEncodingIsUID,
6770 Type::eResolveStateFull));
6771 assert(type_sp.get());
6775 case DW_TAG_array_type:
6777 // Set a bit that lets us know that we are currently parsing this
6778 m_die_to_type[die] = DIE_IS_BEING_PARSED;
6780 lldb::user_id_t type_die_offset = DW_INVALID_OFFSET;
6781 int64_t first_index = 0;
6782 uint32_t byte_stride = 0;
6783 uint32_t bit_stride = 0;
6784 bool is_vector = false;
6785 const size_t num_attributes = die->GetAttributes(this, dwarf_cu, NULL, attributes);
6787 if (num_attributes > 0)
6790 for (i=0; i<num_attributes; ++i)
6792 attr = attributes.AttributeAtIndex(i);
6793 if (attributes.ExtractFormValueAtIndex(this, i, form_value))
6797 case DW_AT_decl_file: decl.SetFile(sc.comp_unit->GetSupportFiles().GetFileSpecAtIndex(form_value.Unsigned())); break;
6798 case DW_AT_decl_line: decl.SetLine(form_value.Unsigned()); break;
6799 case DW_AT_decl_column: decl.SetColumn(form_value.Unsigned()); break;
6801 type_name_cstr = form_value.AsCString(&get_debug_str_data());
6802 type_name_const_str.SetCString(type_name_cstr);
6805 case DW_AT_type: type_die_offset = form_value.Reference(); break;
6806 case DW_AT_byte_size: break; // byte_size = form_value.Unsigned(); break;
6807 case DW_AT_byte_stride: byte_stride = form_value.Unsigned(); break;
6808 case DW_AT_bit_stride: bit_stride = form_value.Unsigned(); break;
6809 case DW_AT_GNU_vector: is_vector = form_value.Boolean(); break;
6810 case DW_AT_accessibility: break; // accessibility = DW_ACCESS_to_AccessType(form_value.Unsigned()); break;
6811 case DW_AT_declaration: break; // is_forward_declaration = form_value.Boolean(); break;
6812 case DW_AT_allocated:
6813 case DW_AT_associated:
6814 case DW_AT_data_location:
6815 case DW_AT_description:
6816 case DW_AT_ordering:
6817 case DW_AT_start_scope:
6818 case DW_AT_visibility:
6819 case DW_AT_specification:
6820 case DW_AT_abstract_origin:
6827 DEBUG_PRINTF ("0x%8.8" PRIx64 ": %s (\"%s\")\n", MakeUserID(die->GetOffset()), DW_TAG_value_to_name(tag), type_name_cstr);
6829 Type *element_type = ResolveTypeUID(type_die_offset);
6833 std::vector<uint64_t> element_orders;
6834 ParseChildArrayInfo(sc, dwarf_cu, die, first_index, element_orders, byte_stride, bit_stride);
6835 if (byte_stride == 0 && bit_stride == 0)
6836 byte_stride = element_type->GetByteSize();
6837 ClangASTType array_element_type = element_type->GetClangForwardType();
6838 uint64_t array_element_bit_stride = byte_stride * 8 + bit_stride;
6839 if (element_orders.size() > 0)
6841 uint64_t num_elements = 0;
6842 std::vector<uint64_t>::const_reverse_iterator pos;
6843 std::vector<uint64_t>::const_reverse_iterator end = element_orders.rend();
6844 for (pos = element_orders.rbegin(); pos != end; ++pos)
6846 num_elements = *pos;
6847 clang_type = ast.CreateArrayType (array_element_type,
6850 array_element_type = clang_type;
6851 array_element_bit_stride = num_elements ?
6852 array_element_bit_stride * num_elements :
6853 array_element_bit_stride;
6858 clang_type = ast.CreateArrayType (array_element_type, 0, is_vector);
6860 ConstString empty_name;
6861 type_sp.reset( new Type (MakeUserID(die->GetOffset()),
6864 array_element_bit_stride / 8,
6867 Type::eEncodingIsUID,
6870 Type::eResolveStateFull));
6871 type_sp->SetEncodingType (element_type);
6877 case DW_TAG_ptr_to_member_type:
6879 dw_offset_t type_die_offset = DW_INVALID_OFFSET;
6880 dw_offset_t containing_type_die_offset = DW_INVALID_OFFSET;
6882 const size_t num_attributes = die->GetAttributes(this, dwarf_cu, NULL, attributes);
6884 if (num_attributes > 0) {
6886 for (i=0; i<num_attributes; ++i)
6888 attr = attributes.AttributeAtIndex(i);
6889 if (attributes.ExtractFormValueAtIndex(this, i, form_value))
6894 type_die_offset = form_value.Reference(); break;
6895 case DW_AT_containing_type:
6896 containing_type_die_offset = form_value.Reference(); break;
6901 Type *pointee_type = ResolveTypeUID(type_die_offset);
6902 Type *class_type = ResolveTypeUID(containing_type_die_offset);
6904 ClangASTType pointee_clang_type = pointee_type->GetClangForwardType();
6905 ClangASTType class_clang_type = class_type->GetClangLayoutType();
6907 clang_type = pointee_clang_type.CreateMemberPointerType(class_clang_type);
6909 byte_size = clang_type.GetByteSize();
6911 type_sp.reset( new Type (MakeUserID(die->GetOffset()),
6913 type_name_const_str,
6917 Type::eEncodingIsUID,
6920 Type::eResolveStateForward));
6926 GetObjectFile()->GetModule()->ReportError ("{0x%8.8x}: unhandled type tag 0x%4.4x (%s), please file a bug and attach the file at the start of this error message",
6929 DW_TAG_value_to_name(tag));
6935 const DWARFDebugInfoEntry *sc_parent_die = GetParentSymbolContextDIE(die);
6936 dw_tag_t sc_parent_tag = sc_parent_die ? sc_parent_die->Tag() : 0;
6938 SymbolContextScope * symbol_context_scope = NULL;
6939 if (sc_parent_tag == DW_TAG_compile_unit)
6941 symbol_context_scope = sc.comp_unit;
6943 else if (sc.function != NULL && sc_parent_die)
6945 symbol_context_scope = sc.function->GetBlock(true).FindBlockByID(MakeUserID(sc_parent_die->GetOffset()));
6946 if (symbol_context_scope == NULL)
6947 symbol_context_scope = sc.function;
6950 if (symbol_context_scope != NULL)
6952 type_sp->SetSymbolContextScope(symbol_context_scope);
6955 // We are ready to put this type into the uniqued list up at the module level
6956 type_list->Insert (type_sp);
6958 m_die_to_type[die] = type_sp.get();
6961 else if (type_ptr != DIE_IS_BEING_PARSED)
6963 type_sp = type_ptr->shared_from_this();
6970 SymbolFileDWARF::ParseTypes
6972 const SymbolContext& sc,
6973 DWARFCompileUnit* dwarf_cu,
6974 const DWARFDebugInfoEntry *die,
6975 bool parse_siblings,
6979 size_t types_added = 0;
6982 bool type_is_new = false;
6983 if (ParseType(sc, dwarf_cu, die, &type_is_new).get())
6989 if (parse_children && die->HasChildren())
6991 if (die->Tag() == DW_TAG_subprogram)
6993 SymbolContext child_sc(sc);
6994 child_sc.function = sc.comp_unit->FindFunctionByUID(MakeUserID(die->GetOffset())).get();
6995 types_added += ParseTypes(child_sc, dwarf_cu, die->GetFirstChild(), true, true);
6998 types_added += ParseTypes(sc, dwarf_cu, die->GetFirstChild(), true, true);
7002 die = die->GetSibling();
7011 SymbolFileDWARF::ParseFunctionBlocks (const SymbolContext &sc)
7013 assert(sc.comp_unit && sc.function);
7014 size_t functions_added = 0;
7015 DWARFCompileUnit* dwarf_cu = GetDWARFCompileUnit(sc.comp_unit);
7018 dw_offset_t function_die_offset = sc.function->GetID();
7019 const DWARFDebugInfoEntry *function_die = dwarf_cu->GetDIEPtr(function_die_offset);
7022 ParseFunctionBlocks(sc, &sc.function->GetBlock (false), dwarf_cu, function_die, LLDB_INVALID_ADDRESS, 0);
7026 return functions_added;
7031 SymbolFileDWARF::ParseTypes (const SymbolContext &sc)
7033 // At least a compile unit must be valid
7034 assert(sc.comp_unit);
7035 size_t types_added = 0;
7036 DWARFCompileUnit* dwarf_cu = GetDWARFCompileUnit(sc.comp_unit);
7041 dw_offset_t function_die_offset = sc.function->GetID();
7042 const DWARFDebugInfoEntry *func_die = dwarf_cu->GetDIEPtr(function_die_offset);
7043 if (func_die && func_die->HasChildren())
7045 types_added = ParseTypes(sc, dwarf_cu, func_die->GetFirstChild(), true, true);
7050 const DWARFDebugInfoEntry *dwarf_cu_die = dwarf_cu->DIE();
7051 if (dwarf_cu_die && dwarf_cu_die->HasChildren())
7053 types_added = ParseTypes(sc, dwarf_cu, dwarf_cu_die->GetFirstChild(), true, true);
7062 SymbolFileDWARF::ParseVariablesForContext (const SymbolContext& sc)
7064 if (sc.comp_unit != NULL)
7066 DWARFDebugInfo* info = DebugInfo();
7072 DWARFCompileUnit* dwarf_cu = info->GetCompileUnitContainingDIE(sc.function->GetID()).get();
7074 if (dwarf_cu == NULL)
7077 const DWARFDebugInfoEntry *function_die = dwarf_cu->GetDIEPtr(sc.function->GetID());
7079 dw_addr_t func_lo_pc = function_die->GetAttributeValueAsUnsigned (this, dwarf_cu, DW_AT_low_pc, LLDB_INVALID_ADDRESS);
7080 if (func_lo_pc != LLDB_INVALID_ADDRESS)
7082 const size_t num_variables = ParseVariables(sc, dwarf_cu, func_lo_pc, function_die->GetFirstChild(), true, true);
7084 // Let all blocks know they have parse all their variables
7085 sc.function->GetBlock (false).SetDidParseVariables (true, true);
7086 return num_variables;
7089 else if (sc.comp_unit)
7091 DWARFCompileUnit* dwarf_cu = info->GetCompileUnit(sc.comp_unit->GetID()).get();
7093 if (dwarf_cu == NULL)
7096 uint32_t vars_added = 0;
7097 VariableListSP variables (sc.comp_unit->GetVariableList(false));
7099 if (variables.get() == NULL)
7101 variables.reset(new VariableList());
7102 sc.comp_unit->SetVariableList(variables);
7104 DWARFCompileUnit* match_dwarf_cu = NULL;
7105 const DWARFDebugInfoEntry* die = NULL;
7106 DIEArray die_offsets;
7107 if (m_using_apple_tables)
7109 if (m_apple_names_ap.get())
7111 DWARFMappedHash::DIEInfoArray hash_data_array;
7112 if (m_apple_names_ap->AppendAllDIEsInRange (dwarf_cu->GetOffset(),
7113 dwarf_cu->GetNextCompileUnitOffset(),
7116 DWARFMappedHash::ExtractDIEArray (hash_data_array, die_offsets);
7122 // Index if we already haven't to make sure the compile units
7123 // get indexed and make their global DIE index list
7127 m_global_index.FindAllEntriesForCompileUnit (dwarf_cu->GetOffset(),
7128 dwarf_cu->GetNextCompileUnitOffset(),
7132 const size_t num_matches = die_offsets.size();
7135 DWARFDebugInfo* debug_info = DebugInfo();
7136 for (size_t i=0; i<num_matches; ++i)
7138 const dw_offset_t die_offset = die_offsets[i];
7139 die = debug_info->GetDIEPtrWithCompileUnitHint (die_offset, &match_dwarf_cu);
7142 VariableSP var_sp (ParseVariableDIE(sc, dwarf_cu, die, LLDB_INVALID_ADDRESS));
7145 variables->AddVariableIfUnique (var_sp);
7151 if (m_using_apple_tables)
7153 GetObjectFile()->GetModule()->ReportErrorIfModifyDetected ("the DWARF debug information has been modified (.apple_names accelerator table had bad die 0x%8.8x)\n", die_offset);
7168 SymbolFileDWARF::ParseVariableDIE
7170 const SymbolContext& sc,
7171 DWARFCompileUnit* dwarf_cu,
7172 const DWARFDebugInfoEntry *die,
7173 const lldb::addr_t func_low_pc
7176 VariableSP var_sp (m_die_to_variable_sp[die]);
7178 return var_sp; // Already been parsed!
7180 const dw_tag_t tag = die->Tag();
7181 ModuleSP module = GetObjectFile()->GetModule();
7183 if ((tag == DW_TAG_variable) ||
7184 (tag == DW_TAG_constant) ||
7185 (tag == DW_TAG_formal_parameter && sc.function))
7187 DWARFDebugInfoEntry::Attributes attributes;
7188 const size_t num_attributes = die->GetAttributes(this, dwarf_cu, NULL, attributes);
7189 if (num_attributes > 0)
7191 const char *name = NULL;
7192 const char *mangled = NULL;
7195 lldb::user_id_t type_uid = LLDB_INVALID_UID;
7196 DWARFExpression location;
7197 bool is_external = false;
7198 bool is_artificial = false;
7199 bool location_is_const_value_data = false;
7200 bool has_explicit_location = false;
7201 DWARFFormValue const_value;
7202 //AccessType accessibility = eAccessNone;
7204 for (i=0; i<num_attributes; ++i)
7206 dw_attr_t attr = attributes.AttributeAtIndex(i);
7207 DWARFFormValue form_value;
7209 if (attributes.ExtractFormValueAtIndex(this, i, form_value))
7213 case DW_AT_decl_file: decl.SetFile(sc.comp_unit->GetSupportFiles().GetFileSpecAtIndex(form_value.Unsigned())); break;
7214 case DW_AT_decl_line: decl.SetLine(form_value.Unsigned()); break;
7215 case DW_AT_decl_column: decl.SetColumn(form_value.Unsigned()); break;
7216 case DW_AT_name: name = form_value.AsCString(&get_debug_str_data()); break;
7217 case DW_AT_linkage_name:
7218 case DW_AT_MIPS_linkage_name: mangled = form_value.AsCString(&get_debug_str_data()); break;
7219 case DW_AT_type: type_uid = form_value.Reference(); break;
7220 case DW_AT_external: is_external = form_value.Boolean(); break;
7221 case DW_AT_const_value:
7222 // If we have already found a DW_AT_location attribute, ignore this attribute.
7223 if (!has_explicit_location)
7225 location_is_const_value_data = true;
7226 // The constant value will be either a block, a data value or a string.
7227 const DWARFDataExtractor& debug_info_data = get_debug_info_data();
7228 if (DWARFFormValue::IsBlockForm(form_value.Form()))
7230 // Retrieve the value as a block expression.
7231 uint32_t block_offset = form_value.BlockData() - debug_info_data.GetDataStart();
7232 uint32_t block_length = form_value.Unsigned();
7233 location.CopyOpcodeData(module, debug_info_data, block_offset, block_length);
7235 else if (DWARFFormValue::IsDataForm(form_value.Form()))
7237 // Retrieve the value as a data expression.
7238 const uint8_t *fixed_form_sizes = DWARFFormValue::GetFixedFormSizesForAddressSize (attributes.CompileUnitAtIndex(i)->GetAddressByteSize(), attributes.CompileUnitAtIndex(i)->IsDWARF64());
7239 uint32_t data_offset = attributes.DIEOffsetAtIndex(i);
7240 uint32_t data_length = fixed_form_sizes[form_value.Form()];
7241 if (data_length == 0)
7243 const uint8_t *data_pointer = form_value.BlockData();
7246 form_value.Unsigned();
7248 else if (DWARFFormValue::IsDataForm(form_value.Form()))
7250 // we need to get the byte size of the type later after we create the variable
7251 const_value = form_value;
7255 location.CopyOpcodeData(module, debug_info_data, data_offset, data_length);
7259 // Retrieve the value as a string expression.
7260 if (form_value.Form() == DW_FORM_strp)
7262 const uint8_t *fixed_form_sizes = DWARFFormValue::GetFixedFormSizesForAddressSize (attributes.CompileUnitAtIndex(i)->GetAddressByteSize(), attributes.CompileUnitAtIndex(i)->IsDWARF64());
7263 uint32_t data_offset = attributes.DIEOffsetAtIndex(i);
7264 uint32_t data_length = fixed_form_sizes[form_value.Form()];
7265 location.CopyOpcodeData(module, debug_info_data, data_offset, data_length);
7269 const char *str = form_value.AsCString(&debug_info_data);
7270 uint32_t string_offset = str - (const char *)debug_info_data.GetDataStart();
7271 uint32_t string_length = strlen(str) + 1;
7272 location.CopyOpcodeData(module, debug_info_data, string_offset, string_length);
7277 case DW_AT_location:
7279 location_is_const_value_data = false;
7280 has_explicit_location = true;
7281 if (form_value.BlockData())
7283 const DWARFDataExtractor& debug_info_data = get_debug_info_data();
7285 uint32_t block_offset = form_value.BlockData() - debug_info_data.GetDataStart();
7286 uint32_t block_length = form_value.Unsigned();
7287 location.CopyOpcodeData(module, get_debug_info_data(), block_offset, block_length);
7291 const DWARFDataExtractor& debug_loc_data = get_debug_loc_data();
7292 const dw_offset_t debug_loc_offset = form_value.Unsigned();
7294 size_t loc_list_length = DWARFLocationList::Size(debug_loc_data, debug_loc_offset);
7295 if (loc_list_length > 0)
7297 location.CopyOpcodeData(module, debug_loc_data, debug_loc_offset, loc_list_length);
7298 assert (func_low_pc != LLDB_INVALID_ADDRESS);
7299 location.SetLocationListSlide (func_low_pc - attributes.CompileUnitAtIndex(i)->GetBaseAddress());
7305 case DW_AT_artificial: is_artificial = form_value.Boolean(); break;
7306 case DW_AT_accessibility: break; //accessibility = DW_ACCESS_to_AccessType(form_value.Unsigned()); break;
7307 case DW_AT_declaration:
7308 case DW_AT_description:
7309 case DW_AT_endianity:
7311 case DW_AT_start_scope:
7312 case DW_AT_visibility:
7314 case DW_AT_abstract_origin:
7316 case DW_AT_specification:
7322 ValueType scope = eValueTypeInvalid;
7324 const DWARFDebugInfoEntry *sc_parent_die = GetParentSymbolContextDIE(die);
7325 dw_tag_t parent_tag = sc_parent_die ? sc_parent_die->Tag() : 0;
7326 SymbolContextScope * symbol_context_scope = NULL;
7328 // DWARF doesn't specify if a DW_TAG_variable is a local, global
7329 // or static variable, so we have to do a little digging by
7330 // looking at the location of a variable to see if it contains
7331 // a DW_OP_addr opcode _somewhere_ in the definition. I say
7332 // somewhere because clang likes to combine small global variables
7333 // into the same symbol and have locations like:
7334 // DW_OP_addr(0x1000), DW_OP_constu(2), DW_OP_plus
7335 // So if we don't have a DW_TAG_formal_parameter, we can look at
7336 // the location to see if it contains a DW_OP_addr opcode, and
7337 // then we can correctly classify our variables.
7338 if (tag == DW_TAG_formal_parameter)
7339 scope = eValueTypeVariableArgument;
7342 bool op_error = false;
7343 // Check if the location has a DW_OP_addr with any address value...
7344 lldb::addr_t location_DW_OP_addr = LLDB_INVALID_ADDRESS;
7345 if (!location_is_const_value_data)
7347 location_DW_OP_addr = location.GetLocation_DW_OP_addr (0, op_error);
7351 location.DumpLocationForAddress (&strm, eDescriptionLevelFull, 0, 0, NULL);
7352 GetObjectFile()->GetModule()->ReportError ("0x%8.8x: %s has an invalid location: %s", die->GetOffset(), DW_TAG_value_to_name(die->Tag()), strm.GetString().c_str());
7356 if (location_DW_OP_addr != LLDB_INVALID_ADDRESS)
7359 scope = eValueTypeVariableGlobal;
7361 scope = eValueTypeVariableStatic;
7364 SymbolFileDWARFDebugMap *debug_map_symfile = GetDebugMapSymfile ();
7366 if (debug_map_symfile)
7368 // When leaving the DWARF in the .o files on darwin,
7369 // when we have a global variable that wasn't initialized,
7370 // the .o file might not have allocated a virtual
7371 // address for the global variable. In this case it will
7372 // have created a symbol for the global variable
7373 // that is undefined/data and external and the value will
7374 // be the byte size of the variable. When we do the
7375 // address map in SymbolFileDWARFDebugMap we rely on
7376 // having an address, we need to do some magic here
7377 // so we can get the correct address for our global
7378 // variable. The address for all of these entries
7379 // will be zero, and there will be an undefined symbol
7380 // in this object file, and the executable will have
7381 // a matching symbol with a good address. So here we
7382 // dig up the correct address and replace it in the
7383 // location for the variable, and set the variable's
7384 // symbol context scope to be that of the main executable
7385 // so the file address will resolve correctly.
7386 bool linked_oso_file_addr = false;
7387 if (is_external && location_DW_OP_addr == 0)
7389 // we have a possible uninitialized extern global
7390 ConstString const_name(mangled ? mangled : name);
7391 ObjectFile *debug_map_objfile = debug_map_symfile->GetObjectFile();
7392 if (debug_map_objfile)
7394 Symtab *debug_map_symtab = debug_map_objfile->GetSymtab();
7395 if (debug_map_symtab)
7397 Symbol *exe_symbol = debug_map_symtab->FindFirstSymbolWithNameAndType (const_name,
7400 Symtab::eVisibilityExtern);
7403 if (exe_symbol->ValueIsAddress())
7405 const addr_t exe_file_addr = exe_symbol->GetAddress().GetFileAddress();
7406 if (exe_file_addr != LLDB_INVALID_ADDRESS)
7408 if (location.Update_DW_OP_addr (exe_file_addr))
7410 linked_oso_file_addr = true;
7411 symbol_context_scope = exe_symbol;
7420 if (!linked_oso_file_addr)
7422 // The DW_OP_addr is not zero, but it contains a .o file address which
7423 // needs to be linked up correctly.
7424 const lldb::addr_t exe_file_addr = debug_map_symfile->LinkOSOFileAddress(this, location_DW_OP_addr);
7425 if (exe_file_addr != LLDB_INVALID_ADDRESS)
7427 // Update the file address for this variable
7428 location.Update_DW_OP_addr (exe_file_addr);
7432 // Variable didn't make it into the final executable
7440 scope = eValueTypeVariableLocal;
7444 if (symbol_context_scope == NULL)
7448 case DW_TAG_subprogram:
7449 case DW_TAG_inlined_subroutine:
7450 case DW_TAG_lexical_block:
7453 symbol_context_scope = sc.function->GetBlock(true).FindBlockByID(MakeUserID(sc_parent_die->GetOffset()));
7454 if (symbol_context_scope == NULL)
7455 symbol_context_scope = sc.function;
7460 symbol_context_scope = sc.comp_unit;
7465 if (symbol_context_scope)
7467 SymbolFileTypeSP type_sp(new SymbolFileType(*this, type_uid));
7469 if (const_value.Form() && type_sp && type_sp->GetType())
7470 location.CopyOpcodeData(const_value.Unsigned(), type_sp->GetType()->GetByteSize(), dwarf_cu->GetAddressByteSize());
7472 var_sp.reset (new Variable (MakeUserID(die->GetOffset()),
7477 symbol_context_scope,
7483 var_sp->SetLocationIsConstantValueData (location_is_const_value_data);
7487 // Not ready to parse this variable yet. It might be a global
7488 // or static variable that is in a function scope and the function
7489 // in the symbol context wasn't filled in yet
7493 // Cache var_sp even if NULL (the variable was just a specification or
7494 // was missing vital information to be able to be displayed in the debugger
7495 // (missing location due to optimization, etc)) so we don't re-parse
7496 // this DIE over and over later...
7497 m_die_to_variable_sp[die] = var_sp;
7503 const DWARFDebugInfoEntry *
7504 SymbolFileDWARF::FindBlockContainingSpecification (dw_offset_t func_die_offset,
7505 dw_offset_t spec_block_die_offset,
7506 DWARFCompileUnit **result_die_cu_handle)
7508 // Give the concrete function die specified by "func_die_offset", find the
7509 // concrete block whose DW_AT_specification or DW_AT_abstract_origin points
7510 // to "spec_block_die_offset"
7511 DWARFDebugInfo* info = DebugInfo();
7513 const DWARFDebugInfoEntry *die = info->GetDIEPtrWithCompileUnitHint(func_die_offset, result_die_cu_handle);
7516 assert (*result_die_cu_handle);
7517 return FindBlockContainingSpecification (*result_die_cu_handle, die, spec_block_die_offset, result_die_cu_handle);
7523 const DWARFDebugInfoEntry *
7524 SymbolFileDWARF::FindBlockContainingSpecification(DWARFCompileUnit* dwarf_cu,
7525 const DWARFDebugInfoEntry *die,
7526 dw_offset_t spec_block_die_offset,
7527 DWARFCompileUnit **result_die_cu_handle)
7533 case DW_TAG_subprogram:
7534 case DW_TAG_inlined_subroutine:
7535 case DW_TAG_lexical_block:
7537 if (die->GetAttributeValueAsReference (this, dwarf_cu, DW_AT_specification, DW_INVALID_OFFSET) == spec_block_die_offset)
7539 *result_die_cu_handle = dwarf_cu;
7543 if (die->GetAttributeValueAsReference (this, dwarf_cu, DW_AT_abstract_origin, DW_INVALID_OFFSET) == spec_block_die_offset)
7545 *result_die_cu_handle = dwarf_cu;
7552 // Give the concrete function die specified by "func_die_offset", find the
7553 // concrete block whose DW_AT_specification or DW_AT_abstract_origin points
7554 // to "spec_block_die_offset"
7555 for (const DWARFDebugInfoEntry *child_die = die->GetFirstChild(); child_die != NULL; child_die = child_die->GetSibling())
7557 const DWARFDebugInfoEntry *result_die = FindBlockContainingSpecification (dwarf_cu,
7559 spec_block_die_offset,
7560 result_die_cu_handle);
7566 *result_die_cu_handle = NULL;
7571 SymbolFileDWARF::ParseVariables
7573 const SymbolContext& sc,
7574 DWARFCompileUnit* dwarf_cu,
7575 const lldb::addr_t func_low_pc,
7576 const DWARFDebugInfoEntry *orig_die,
7577 bool parse_siblings,
7578 bool parse_children,
7579 VariableList* cc_variable_list
7582 if (orig_die == NULL)
7585 VariableListSP variable_list_sp;
7587 size_t vars_added = 0;
7588 const DWARFDebugInfoEntry *die = orig_die;
7591 dw_tag_t tag = die->Tag();
7593 // Check to see if we have already parsed this variable or constant?
7594 if (m_die_to_variable_sp[die])
7596 if (cc_variable_list)
7597 cc_variable_list->AddVariableIfUnique (m_die_to_variable_sp[die]);
7601 // We haven't already parsed it, lets do that now.
7602 if ((tag == DW_TAG_variable) ||
7603 (tag == DW_TAG_constant) ||
7604 (tag == DW_TAG_formal_parameter && sc.function))
7606 if (variable_list_sp.get() == NULL)
7608 const DWARFDebugInfoEntry *sc_parent_die = GetParentSymbolContextDIE(orig_die);
7609 dw_tag_t parent_tag = sc_parent_die ? sc_parent_die->Tag() : 0;
7612 case DW_TAG_compile_unit:
7613 if (sc.comp_unit != NULL)
7615 variable_list_sp = sc.comp_unit->GetVariableList(false);
7616 if (variable_list_sp.get() == NULL)
7618 variable_list_sp.reset(new VariableList());
7619 sc.comp_unit->SetVariableList(variable_list_sp);
7624 GetObjectFile()->GetModule()->ReportError ("parent 0x%8.8" PRIx64 " %s with no valid compile unit in symbol context for 0x%8.8" PRIx64 " %s.\n",
7625 MakeUserID(sc_parent_die->GetOffset()),
7626 DW_TAG_value_to_name (parent_tag),
7627 MakeUserID(orig_die->GetOffset()),
7628 DW_TAG_value_to_name (orig_die->Tag()));
7632 case DW_TAG_subprogram:
7633 case DW_TAG_inlined_subroutine:
7634 case DW_TAG_lexical_block:
7635 if (sc.function != NULL)
7637 // Check to see if we already have parsed the variables for the given scope
7639 Block *block = sc.function->GetBlock(true).FindBlockByID(MakeUserID(sc_parent_die->GetOffset()));
7642 // This must be a specification or abstract origin with
7643 // a concrete block counterpart in the current function. We need
7644 // to find the concrete block so we can correctly add the
7646 DWARFCompileUnit *concrete_block_die_cu = dwarf_cu;
7647 const DWARFDebugInfoEntry *concrete_block_die = FindBlockContainingSpecification (sc.function->GetID(),
7648 sc_parent_die->GetOffset(),
7649 &concrete_block_die_cu);
7650 if (concrete_block_die)
7651 block = sc.function->GetBlock(true).FindBlockByID(MakeUserID(concrete_block_die->GetOffset()));
7656 const bool can_create = false;
7657 variable_list_sp = block->GetBlockVariableList (can_create);
7658 if (variable_list_sp.get() == NULL)
7660 variable_list_sp.reset(new VariableList());
7661 block->SetVariableList(variable_list_sp);
7668 GetObjectFile()->GetModule()->ReportError ("didn't find appropriate parent DIE for variable list for 0x%8.8" PRIx64 " %s.\n",
7669 MakeUserID(orig_die->GetOffset()),
7670 DW_TAG_value_to_name (orig_die->Tag()));
7675 if (variable_list_sp)
7677 VariableSP var_sp (ParseVariableDIE(sc, dwarf_cu, die, func_low_pc));
7680 variable_list_sp->AddVariableIfUnique (var_sp);
7681 if (cc_variable_list)
7682 cc_variable_list->AddVariableIfUnique (var_sp);
7689 bool skip_children = (sc.function == NULL && tag == DW_TAG_subprogram);
7691 if (!skip_children && parse_children && die->HasChildren())
7693 vars_added += ParseVariables(sc, dwarf_cu, func_low_pc, die->GetFirstChild(), true, true, cc_variable_list);
7697 die = die->GetSibling();
7704 //------------------------------------------------------------------
7705 // PluginInterface protocol
7706 //------------------------------------------------------------------
7708 SymbolFileDWARF::GetPluginName()
7710 return GetPluginNameStatic();
7714 SymbolFileDWARF::GetPluginVersion()
7720 SymbolFileDWARF::CompleteTagDecl (void *baton, clang::TagDecl *decl)
7722 SymbolFileDWARF *symbol_file_dwarf = (SymbolFileDWARF *)baton;
7723 ClangASTType clang_type = symbol_file_dwarf->GetClangASTContext().GetTypeForDecl (decl);
7725 symbol_file_dwarf->ResolveClangOpaqueTypeDefinition (clang_type);
7729 SymbolFileDWARF::CompleteObjCInterfaceDecl (void *baton, clang::ObjCInterfaceDecl *decl)
7731 SymbolFileDWARF *symbol_file_dwarf = (SymbolFileDWARF *)baton;
7732 ClangASTType clang_type = symbol_file_dwarf->GetClangASTContext().GetTypeForDecl (decl);
7734 symbol_file_dwarf->ResolveClangOpaqueTypeDefinition (clang_type);
7738 SymbolFileDWARF::DumpIndexes ()
7740 StreamFile s(stdout, false);
7742 s.Printf ("DWARF index for (%s) '%s':",
7743 GetObjectFile()->GetModule()->GetArchitecture().GetArchitectureName(),
7744 GetObjectFile()->GetFileSpec().GetPath().c_str());
7745 s.Printf("\nFunction basenames:\n"); m_function_basename_index.Dump (&s);
7746 s.Printf("\nFunction fullnames:\n"); m_function_fullname_index.Dump (&s);
7747 s.Printf("\nFunction methods:\n"); m_function_method_index.Dump (&s);
7748 s.Printf("\nFunction selectors:\n"); m_function_selector_index.Dump (&s);
7749 s.Printf("\nObjective C class selectors:\n"); m_objc_class_selectors_index.Dump (&s);
7750 s.Printf("\nGlobals and statics:\n"); m_global_index.Dump (&s);
7751 s.Printf("\nTypes:\n"); m_type_index.Dump (&s);
7752 s.Printf("\nNamepaces:\n"); m_namespace_index.Dump (&s);
7756 SymbolFileDWARF::SearchDeclContext (const clang::DeclContext *decl_context,
7758 llvm::SmallVectorImpl <clang::NamedDecl *> *results)
7760 DeclContextToDIEMap::iterator iter = m_decl_ctx_to_die.find(decl_context);
7762 if (iter == m_decl_ctx_to_die.end())
7765 for (DIEPointerSet::iterator pos = iter->second.begin(), end = iter->second.end(); pos != end; ++pos)
7767 const DWARFDebugInfoEntry *context_die = *pos;
7772 DWARFDebugInfo* info = DebugInfo();
7774 DIEArray die_offsets;
7776 DWARFCompileUnit* dwarf_cu = NULL;
7777 const DWARFDebugInfoEntry* die = NULL;
7779 if (m_using_apple_tables)
7781 if (m_apple_types_ap.get())
7782 m_apple_types_ap->FindByName (name, die_offsets);
7789 m_type_index.Find (ConstString(name), die_offsets);
7792 const size_t num_matches = die_offsets.size();
7796 for (size_t i = 0; i < num_matches; ++i)
7798 const dw_offset_t die_offset = die_offsets[i];
7799 die = info->GetDIEPtrWithCompileUnitHint (die_offset, &dwarf_cu);
7801 if (die->GetParent() != context_die)
7804 Type *matching_type = ResolveType (dwarf_cu, die);
7806 clang::QualType qual_type = matching_type->GetClangForwardType().GetQualType();
7808 if (const clang::TagType *tag_type = llvm::dyn_cast<clang::TagType>(qual_type.getTypePtr()))
7810 clang::TagDecl *tag_decl = tag_type->getDecl();
7811 results->push_back(tag_decl);
7813 else if (const clang::TypedefType *typedef_type = llvm::dyn_cast<clang::TypedefType>(qual_type.getTypePtr()))
7815 clang::TypedefNameDecl *typedef_decl = typedef_type->getDecl();
7816 results->push_back(typedef_decl);
7824 SymbolFileDWARF::FindExternalVisibleDeclsByName (void *baton,
7825 const clang::DeclContext *decl_context,
7826 clang::DeclarationName decl_name,
7827 llvm::SmallVectorImpl <clang::NamedDecl *> *results)
7830 switch (decl_context->getDeclKind())
7832 case clang::Decl::Namespace:
7833 case clang::Decl::TranslationUnit:
7835 SymbolFileDWARF *symbol_file_dwarf = (SymbolFileDWARF *)baton;
7836 symbol_file_dwarf->SearchDeclContext (decl_context, decl_name.getAsString().c_str(), results);
7845 SymbolFileDWARF::LayoutRecordType (void *baton,
7846 const clang::RecordDecl *record_decl,
7848 uint64_t &alignment,
7849 llvm::DenseMap <const clang::FieldDecl *, uint64_t> &field_offsets,
7850 llvm::DenseMap <const clang::CXXRecordDecl *, clang::CharUnits> &base_offsets,
7851 llvm::DenseMap <const clang::CXXRecordDecl *, clang::CharUnits> &vbase_offsets)
7853 SymbolFileDWARF *symbol_file_dwarf = (SymbolFileDWARF *)baton;
7854 return symbol_file_dwarf->LayoutRecordType (record_decl, size, alignment, field_offsets, base_offsets, vbase_offsets);
7859 SymbolFileDWARF::LayoutRecordType (const clang::RecordDecl *record_decl,
7861 uint64_t &alignment,
7862 llvm::DenseMap <const clang::FieldDecl *, uint64_t> &field_offsets,
7863 llvm::DenseMap <const clang::CXXRecordDecl *, clang::CharUnits> &base_offsets,
7864 llvm::DenseMap <const clang::CXXRecordDecl *, clang::CharUnits> &vbase_offsets)
7866 Log *log (LogChannelDWARF::GetLogIfAll(DWARF_LOG_DEBUG_INFO));
7867 RecordDeclToLayoutMap::iterator pos = m_record_decl_to_layout_map.find (record_decl);
7868 bool success = false;
7869 base_offsets.clear();
7870 vbase_offsets.clear();
7871 if (pos != m_record_decl_to_layout_map.end())
7873 bit_size = pos->second.bit_size;
7874 alignment = pos->second.alignment;
7875 field_offsets.swap(pos->second.field_offsets);
7876 base_offsets.swap (pos->second.base_offsets);
7877 vbase_offsets.swap (pos->second.vbase_offsets);
7878 m_record_decl_to_layout_map.erase(pos);
7885 field_offsets.clear();
7889 GetObjectFile()->GetModule()->LogMessage (log,
7890 "SymbolFileDWARF::LayoutRecordType (record_decl = %p, bit_size = %" PRIu64 ", alignment = %" PRIu64 ", field_offsets[%u],base_offsets[%u], vbase_offsets[%u]) success = %i",
7891 static_cast<const void*>(record_decl),
7892 bit_size, alignment,
7893 static_cast<uint32_t>(field_offsets.size()),
7894 static_cast<uint32_t>(base_offsets.size()),
7895 static_cast<uint32_t>(vbase_offsets.size()),
7901 SymbolFileDWARFDebugMap *
7902 SymbolFileDWARF::GetDebugMapSymfile ()
7904 if (m_debug_map_symfile == NULL && !m_debug_map_module_wp.expired())
7906 lldb::ModuleSP module_sp (m_debug_map_module_wp.lock());
7909 SymbolVendor *sym_vendor = module_sp->GetSymbolVendor();
7911 m_debug_map_symfile = (SymbolFileDWARFDebugMap *)sym_vendor->GetSymbolFile();
7914 return m_debug_map_symfile;