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"
69 //#define ENABLE_DEBUG_PRINTF // COMMENT OUT THIS LINE PRIOR TO CHECKIN
71 #ifdef ENABLE_DEBUG_PRINTF
73 #define DEBUG_PRINTF(fmt, ...) printf(fmt, ## __VA_ARGS__)
75 #define DEBUG_PRINTF(fmt, ...)
78 #define DIE_IS_BEING_PARSED ((lldb_private::Type*)1)
81 using namespace lldb_private;
84 //child_requires_parent_class_union_or_struct_to_be_completed (dw_tag_t tag)
90 // case DW_TAG_subprogram:
91 // case DW_TAG_inlined_subroutine:
92 // case DW_TAG_class_type:
93 // case DW_TAG_structure_type:
94 // case DW_TAG_union_type:
101 DW_ACCESS_to_AccessType (uint32_t dwarf_accessibility)
103 switch (dwarf_accessibility)
105 case DW_ACCESS_public: return eAccessPublic;
106 case DW_ACCESS_private: return eAccessPrivate;
107 case DW_ACCESS_protected: return eAccessProtected;
113 #if defined(LLDB_CONFIGURATION_DEBUG) or defined(LLDB_CONFIGURATION_RELEASE)
119 void Push (DWARFCompileUnit *cu, const DWARFDebugInfoEntry *die)
121 m_dies.push_back (DIEInfo(cu, die));
125 void LogDIEs (Log *log, SymbolFileDWARF *dwarf)
127 StreamString log_strm;
128 const size_t n = m_dies.size();
129 log_strm.Printf("DIEStack[%" PRIu64 "]:\n", (uint64_t)n);
130 for (size_t i=0; i<n; i++)
132 DWARFCompileUnit *cu = m_dies[i].cu;
133 const DWARFDebugInfoEntry *die = m_dies[i].die;
134 std::string qualified_name;
135 die->GetQualifiedName(dwarf, cu, qualified_name);
136 log_strm.Printf ("[%" PRIu64 "] 0x%8.8x: %s name='%s'\n",
139 DW_TAG_value_to_name(die->Tag()),
140 qualified_name.c_str());
142 log->PutCString(log_strm.GetData());
152 ScopedPopper (DIEStack &die_stack) :
153 m_die_stack (die_stack),
159 Push (DWARFCompileUnit *cu, const DWARFDebugInfoEntry *die)
162 m_die_stack.Push (cu, die);
174 DIEStack &m_die_stack;
180 DIEInfo (DWARFCompileUnit *c, const DWARFDebugInfoEntry *d) :
185 DWARFCompileUnit *cu;
186 const DWARFDebugInfoEntry *die;
188 typedef std::vector<DIEInfo> Stack;
194 SymbolFileDWARF::Initialize()
196 LogChannelDWARF::Initialize();
197 PluginManager::RegisterPlugin (GetPluginNameStatic(),
198 GetPluginDescriptionStatic(),
203 SymbolFileDWARF::Terminate()
205 PluginManager::UnregisterPlugin (CreateInstance);
206 LogChannelDWARF::Initialize();
210 lldb_private::ConstString
211 SymbolFileDWARF::GetPluginNameStatic()
213 static ConstString g_name("dwarf");
218 SymbolFileDWARF::GetPluginDescriptionStatic()
220 return "DWARF and DWARF3 debug symbol file reader.";
225 SymbolFileDWARF::CreateInstance (ObjectFile* obj_file)
227 return new SymbolFileDWARF(obj_file);
231 SymbolFileDWARF::GetTypeList ()
233 if (GetDebugMapSymfile ())
234 return m_debug_map_symfile->GetTypeList();
235 return m_obj_file->GetModule()->GetTypeList();
239 SymbolFileDWARF::GetTypes (DWARFCompileUnit* cu,
240 const DWARFDebugInfoEntry *die,
241 dw_offset_t min_die_offset,
242 dw_offset_t max_die_offset,
250 const dw_offset_t die_offset = die->GetOffset();
252 if (die_offset >= max_die_offset)
255 if (die_offset >= min_die_offset)
257 const dw_tag_t tag = die->Tag();
259 bool add_type = false;
263 case DW_TAG_array_type: add_type = (type_mask & eTypeClassArray ) != 0; break;
264 case DW_TAG_unspecified_type:
265 case DW_TAG_base_type: add_type = (type_mask & eTypeClassBuiltin ) != 0; break;
266 case DW_TAG_class_type: add_type = (type_mask & eTypeClassClass ) != 0; break;
267 case DW_TAG_structure_type: add_type = (type_mask & eTypeClassStruct ) != 0; break;
268 case DW_TAG_union_type: add_type = (type_mask & eTypeClassUnion ) != 0; break;
269 case DW_TAG_enumeration_type: add_type = (type_mask & eTypeClassEnumeration ) != 0; break;
270 case DW_TAG_subroutine_type:
271 case DW_TAG_subprogram:
272 case DW_TAG_inlined_subroutine: add_type = (type_mask & eTypeClassFunction ) != 0; break;
273 case DW_TAG_pointer_type: add_type = (type_mask & eTypeClassPointer ) != 0; break;
274 case DW_TAG_rvalue_reference_type:
275 case DW_TAG_reference_type: add_type = (type_mask & eTypeClassReference ) != 0; break;
276 case DW_TAG_typedef: add_type = (type_mask & eTypeClassTypedef ) != 0; break;
277 case DW_TAG_ptr_to_member_type: add_type = (type_mask & eTypeClassMemberPointer ) != 0; break;
282 const bool assert_not_being_parsed = true;
283 Type *type = ResolveTypeUID (cu, die, assert_not_being_parsed);
286 if (type_set.find(type) == type_set.end())
287 type_set.insert(type);
292 for (const DWARFDebugInfoEntry *child_die = die->GetFirstChild();
294 child_die = child_die->GetSibling())
296 GetTypes (cu, child_die, min_die_offset, max_die_offset, type_mask, type_set);
303 SymbolFileDWARF::GetTypes (SymbolContextScope *sc_scope,
310 CompileUnit *comp_unit = NULL;
311 DWARFCompileUnit* dwarf_cu = NULL;
313 comp_unit = sc_scope->CalculateSymbolContextCompileUnit();
317 dwarf_cu = GetDWARFCompileUnit(comp_unit);
322 dwarf_cu->GetOffset(),
323 dwarf_cu->GetNextCompileUnitOffset(),
329 DWARFDebugInfo* info = DebugInfo();
332 const size_t num_cus = info->GetNumCompileUnits();
333 for (size_t cu_idx=0; cu_idx<num_cus; ++cu_idx)
335 dwarf_cu = info->GetCompileUnitAtIndex(cu_idx);
348 // if (m_using_apple_tables)
350 // DWARFMappedHash::MemoryTable *apple_types = m_apple_types_ap.get();
353 // apple_types->ForEach([this, &type_set, apple_types, type_mask](const DWARFMappedHash::DIEInfoArray &die_info_array) -> bool {
355 // for (auto die_info: die_info_array)
357 // bool add_type = TagMatchesTypeMask (type_mask, 0);
360 // dw_tag_t tag = die_info.tag;
363 // const DWARFDebugInfoEntry *die = DebugInfo()->GetDIEPtr(die_info.offset, NULL);
366 // add_type = TagMatchesTypeMask (type_mask, tag);
370 // Type *type = ResolveTypeUID(die_info.offset);
372 // if (type_set.find(type) == type_set.end())
373 // type_set.insert(type);
376 // return true; // Keep iterating
385 // m_type_index.ForEach([this, &type_set, type_mask](const char *name, uint32_t die_offset) -> bool {
387 // bool add_type = TagMatchesTypeMask (type_mask, 0);
391 // const DWARFDebugInfoEntry *die = DebugInfo()->GetDIEPtr(die_offset, NULL);
394 // const dw_tag_t tag = die->Tag();
395 // add_type = TagMatchesTypeMask (type_mask, tag);
401 // Type *type = ResolveTypeUID(die_offset);
403 // if (type_set.find(type) == type_set.end())
404 // type_set.insert(type);
406 // return true; // Keep iterating
410 std::set<ClangASTType> clang_type_set;
411 size_t num_types_added = 0;
412 for (Type *type : type_set)
414 ClangASTType clang_type = type->GetClangForwardType();
415 if (clang_type_set.find(clang_type) == clang_type_set.end())
417 clang_type_set.insert(clang_type);
418 type_list.Insert (type->shared_from_this());
422 return num_types_added;
426 //----------------------------------------------------------------------
427 // Gets the first parent that is a lexical block, function or inlined
428 // subroutine, or compile unit.
429 //----------------------------------------------------------------------
430 static const DWARFDebugInfoEntry *
431 GetParentSymbolContextDIE(const DWARFDebugInfoEntry *child_die)
433 const DWARFDebugInfoEntry *die;
434 for (die = child_die->GetParent(); die != NULL; die = die->GetParent())
436 dw_tag_t tag = die->Tag();
440 case DW_TAG_compile_unit:
441 case DW_TAG_subprogram:
442 case DW_TAG_inlined_subroutine:
443 case DW_TAG_lexical_block:
451 SymbolFileDWARF::SymbolFileDWARF(ObjectFile* objfile) :
452 SymbolFile (objfile),
453 UserID (0), // Used by SymbolFileDWARFDebugMap to when this class parses .o files to contain the .o file index/ID
454 m_debug_map_module_wp (),
455 m_debug_map_symfile (NULL),
456 m_clang_tu_decl (NULL),
458 m_data_debug_abbrev (),
459 m_data_debug_aranges (),
460 m_data_debug_frame (),
461 m_data_debug_info (),
462 m_data_debug_line (),
464 m_data_debug_ranges (),
466 m_data_apple_names (),
467 m_data_apple_types (),
468 m_data_apple_namespaces (),
474 m_apple_namespaces_ap (),
476 m_function_basename_index(),
477 m_function_fullname_index(),
478 m_function_method_index(),
479 m_function_selector_index(),
480 m_objc_class_selectors_index(),
485 m_is_external_ast_source (false),
486 m_using_apple_tables (false),
487 m_supports_DW_AT_APPLE_objc_complete_type (eLazyBoolCalculate),
489 m_unique_ast_type_map ()
493 SymbolFileDWARF::~SymbolFileDWARF()
495 if (m_is_external_ast_source)
497 ModuleSP module_sp (m_obj_file->GetModule());
499 module_sp->GetClangASTContext().RemoveExternalSource ();
503 static const ConstString &
504 GetDWARFMachOSegmentName ()
506 static ConstString g_dwarf_section_name ("__DWARF");
507 return g_dwarf_section_name;
510 UniqueDWARFASTTypeMap &
511 SymbolFileDWARF::GetUniqueDWARFASTTypeMap ()
513 if (GetDebugMapSymfile ())
514 return m_debug_map_symfile->GetUniqueDWARFASTTypeMap ();
515 return m_unique_ast_type_map;
519 SymbolFileDWARF::GetClangASTContext ()
521 if (GetDebugMapSymfile ())
522 return m_debug_map_symfile->GetClangASTContext ();
524 ClangASTContext &ast = m_obj_file->GetModule()->GetClangASTContext();
525 if (!m_is_external_ast_source)
527 m_is_external_ast_source = true;
528 llvm::OwningPtr<clang::ExternalASTSource> ast_source_ap (
529 new ClangExternalASTSourceCallbacks (SymbolFileDWARF::CompleteTagDecl,
530 SymbolFileDWARF::CompleteObjCInterfaceDecl,
531 SymbolFileDWARF::FindExternalVisibleDeclsByName,
532 SymbolFileDWARF::LayoutRecordType,
534 ast.SetExternalSource (ast_source_ap);
540 SymbolFileDWARF::InitializeObject()
542 // Install our external AST source callbacks so we can complete Clang types.
543 ModuleSP module_sp (m_obj_file->GetModule());
546 const SectionList *section_list = module_sp->GetSectionList();
548 const Section* section = section_list->FindSectionByName(GetDWARFMachOSegmentName ()).get();
550 // Memory map the DWARF mach-o segment so we have everything mmap'ed
551 // to keep our heap memory usage down.
553 m_obj_file->MemoryMapSectionData(section, m_dwarf_data);
555 get_apple_names_data();
556 if (m_data_apple_names.GetByteSize() > 0)
558 m_apple_names_ap.reset (new DWARFMappedHash::MemoryTable (m_data_apple_names, get_debug_str_data(), ".apple_names"));
559 if (m_apple_names_ap->IsValid())
560 m_using_apple_tables = true;
562 m_apple_names_ap.reset();
564 get_apple_types_data();
565 if (m_data_apple_types.GetByteSize() > 0)
567 m_apple_types_ap.reset (new DWARFMappedHash::MemoryTable (m_data_apple_types, get_debug_str_data(), ".apple_types"));
568 if (m_apple_types_ap->IsValid())
569 m_using_apple_tables = true;
571 m_apple_types_ap.reset();
574 get_apple_namespaces_data();
575 if (m_data_apple_namespaces.GetByteSize() > 0)
577 m_apple_namespaces_ap.reset (new DWARFMappedHash::MemoryTable (m_data_apple_namespaces, get_debug_str_data(), ".apple_namespaces"));
578 if (m_apple_namespaces_ap->IsValid())
579 m_using_apple_tables = true;
581 m_apple_namespaces_ap.reset();
584 get_apple_objc_data();
585 if (m_data_apple_objc.GetByteSize() > 0)
587 m_apple_objc_ap.reset (new DWARFMappedHash::MemoryTable (m_data_apple_objc, get_debug_str_data(), ".apple_objc"));
588 if (m_apple_objc_ap->IsValid())
589 m_using_apple_tables = true;
591 m_apple_objc_ap.reset();
596 SymbolFileDWARF::SupportedVersion(uint16_t version)
598 return version == 2 || version == 3 || version == 4;
602 SymbolFileDWARF::CalculateAbilities ()
604 uint32_t abilities = 0;
605 if (m_obj_file != NULL)
607 const Section* section = NULL;
608 const SectionList *section_list = m_obj_file->GetSectionList();
609 if (section_list == NULL)
612 uint64_t debug_abbrev_file_size = 0;
613 uint64_t debug_info_file_size = 0;
614 uint64_t debug_line_file_size = 0;
616 section = section_list->FindSectionByName(GetDWARFMachOSegmentName ()).get();
619 section_list = §ion->GetChildren ();
621 section = section_list->FindSectionByType (eSectionTypeDWARFDebugInfo, true).get();
624 debug_info_file_size = section->GetFileSize();
626 section = section_list->FindSectionByType (eSectionTypeDWARFDebugAbbrev, true).get();
628 debug_abbrev_file_size = section->GetFileSize();
630 m_flags.Set (flagsGotDebugAbbrevData);
632 section = section_list->FindSectionByType (eSectionTypeDWARFDebugAranges, true).get();
634 m_flags.Set (flagsGotDebugArangesData);
636 section = section_list->FindSectionByType (eSectionTypeDWARFDebugFrame, true).get();
638 m_flags.Set (flagsGotDebugFrameData);
640 section = section_list->FindSectionByType (eSectionTypeDWARFDebugLine, true).get();
642 debug_line_file_size = section->GetFileSize();
644 m_flags.Set (flagsGotDebugLineData);
646 section = section_list->FindSectionByType (eSectionTypeDWARFDebugLoc, true).get();
648 m_flags.Set (flagsGotDebugLocData);
650 section = section_list->FindSectionByType (eSectionTypeDWARFDebugMacInfo, true).get();
652 m_flags.Set (flagsGotDebugMacInfoData);
654 section = section_list->FindSectionByType (eSectionTypeDWARFDebugPubNames, true).get();
656 m_flags.Set (flagsGotDebugPubNamesData);
658 section = section_list->FindSectionByType (eSectionTypeDWARFDebugPubTypes, true).get();
660 m_flags.Set (flagsGotDebugPubTypesData);
662 section = section_list->FindSectionByType (eSectionTypeDWARFDebugRanges, true).get();
664 m_flags.Set (flagsGotDebugRangesData);
666 section = section_list->FindSectionByType (eSectionTypeDWARFDebugStr, true).get();
668 m_flags.Set (flagsGotDebugStrData);
672 const char *symfile_dir_cstr = m_obj_file->GetFileSpec().GetDirectory().GetCString();
673 if (symfile_dir_cstr)
675 if (strcasestr(symfile_dir_cstr, ".dsym"))
677 if (m_obj_file->GetType() == ObjectFile::eTypeDebugInfo)
679 // We have a dSYM file that didn't have a any debug info.
680 // If the string table has a size of 1, then it was made from
681 // an executable with no debug info, or from an executable that
683 section = section_list->FindSectionByType (eSectionTypeDWARFDebugStr, true).get();
684 if (section && section->GetFileSize() == 1)
686 m_obj_file->GetModule()->ReportWarning ("empty dSYM file detected, dSYM was created with an executable with no debug info.");
693 if (debug_abbrev_file_size > 0 && debug_info_file_size > 0)
694 abilities |= CompileUnits | Functions | Blocks | GlobalVariables | LocalVariables | VariableTypes;
696 if (debug_line_file_size > 0)
697 abilities |= LineTables;
703 SymbolFileDWARF::GetCachedSectionData (uint32_t got_flag, SectionType sect_type, DataExtractor &data)
705 if (m_flags.IsClear (got_flag))
707 ModuleSP module_sp (m_obj_file->GetModule());
708 m_flags.Set (got_flag);
709 const SectionList *section_list = module_sp->GetSectionList();
712 SectionSP section_sp (section_list->FindSectionByType(sect_type, true));
715 // See if we memory mapped the DWARF segment?
716 if (m_dwarf_data.GetByteSize())
718 data.SetData(m_dwarf_data, section_sp->GetOffset (), section_sp->GetFileSize());
722 if (m_obj_file->ReadSectionData (section_sp.get(), data) == 0)
732 SymbolFileDWARF::get_debug_abbrev_data()
734 return GetCachedSectionData (flagsGotDebugAbbrevData, eSectionTypeDWARFDebugAbbrev, m_data_debug_abbrev);
738 SymbolFileDWARF::get_debug_aranges_data()
740 return GetCachedSectionData (flagsGotDebugArangesData, eSectionTypeDWARFDebugAranges, m_data_debug_aranges);
744 SymbolFileDWARF::get_debug_frame_data()
746 return GetCachedSectionData (flagsGotDebugFrameData, eSectionTypeDWARFDebugFrame, m_data_debug_frame);
750 SymbolFileDWARF::get_debug_info_data()
752 return GetCachedSectionData (flagsGotDebugInfoData, eSectionTypeDWARFDebugInfo, m_data_debug_info);
756 SymbolFileDWARF::get_debug_line_data()
758 return GetCachedSectionData (flagsGotDebugLineData, eSectionTypeDWARFDebugLine, m_data_debug_line);
762 SymbolFileDWARF::get_debug_loc_data()
764 return GetCachedSectionData (flagsGotDebugLocData, eSectionTypeDWARFDebugLoc, m_data_debug_loc);
768 SymbolFileDWARF::get_debug_ranges_data()
770 return GetCachedSectionData (flagsGotDebugRangesData, eSectionTypeDWARFDebugRanges, m_data_debug_ranges);
774 SymbolFileDWARF::get_debug_str_data()
776 return GetCachedSectionData (flagsGotDebugStrData, eSectionTypeDWARFDebugStr, m_data_debug_str);
780 SymbolFileDWARF::get_apple_names_data()
782 return GetCachedSectionData (flagsGotAppleNamesData, eSectionTypeDWARFAppleNames, m_data_apple_names);
786 SymbolFileDWARF::get_apple_types_data()
788 return GetCachedSectionData (flagsGotAppleTypesData, eSectionTypeDWARFAppleTypes, m_data_apple_types);
792 SymbolFileDWARF::get_apple_namespaces_data()
794 return GetCachedSectionData (flagsGotAppleNamespacesData, eSectionTypeDWARFAppleNamespaces, m_data_apple_namespaces);
798 SymbolFileDWARF::get_apple_objc_data()
800 return GetCachedSectionData (flagsGotAppleObjCData, eSectionTypeDWARFAppleObjC, m_data_apple_objc);
805 SymbolFileDWARF::DebugAbbrev()
807 if (m_abbr.get() == NULL)
809 const DataExtractor &debug_abbrev_data = get_debug_abbrev_data();
810 if (debug_abbrev_data.GetByteSize() > 0)
812 m_abbr.reset(new DWARFDebugAbbrev());
814 m_abbr->Parse(debug_abbrev_data);
820 const DWARFDebugAbbrev*
821 SymbolFileDWARF::DebugAbbrev() const
828 SymbolFileDWARF::DebugInfo()
830 if (m_info.get() == NULL)
832 Timer scoped_timer(__PRETTY_FUNCTION__, "%s this = %p", __PRETTY_FUNCTION__, this);
833 if (get_debug_info_data().GetByteSize() > 0)
835 m_info.reset(new DWARFDebugInfo());
838 m_info->SetDwarfData(this);
845 const DWARFDebugInfo*
846 SymbolFileDWARF::DebugInfo() const
852 SymbolFileDWARF::GetDWARFCompileUnit(lldb_private::CompileUnit *comp_unit)
854 DWARFDebugInfo* info = DebugInfo();
857 if (GetDebugMapSymfile ())
859 // The debug map symbol file made the compile units for this DWARF
860 // file which is .o file with DWARF in it, and we should have
861 // only 1 compile unit which is at offset zero in the DWARF.
862 // TODO: modify to support LTO .o files where each .o file might
863 // have multiple DW_TAG_compile_unit tags.
864 return info->GetCompileUnit(0).get();
868 // Just a normal DWARF file whose user ID for the compile unit is
869 // the DWARF offset itself
870 return info->GetCompileUnit((dw_offset_t)comp_unit->GetID()).get();
878 SymbolFileDWARF::DebugRanges()
880 if (m_ranges.get() == NULL)
882 Timer scoped_timer(__PRETTY_FUNCTION__, "%s this = %p", __PRETTY_FUNCTION__, this);
883 if (get_debug_ranges_data().GetByteSize() > 0)
885 m_ranges.reset(new DWARFDebugRanges());
887 m_ranges->Extract(this);
890 return m_ranges.get();
893 const DWARFDebugRanges*
894 SymbolFileDWARF::DebugRanges() const
896 return m_ranges.get();
900 SymbolFileDWARF::ParseCompileUnit (DWARFCompileUnit* dwarf_cu, uint32_t cu_idx)
905 CompileUnit *comp_unit = (CompileUnit*)dwarf_cu->GetUserData();
908 // We already parsed this compile unit, had out a shared pointer to it
909 cu_sp = comp_unit->shared_from_this();
913 if (GetDebugMapSymfile ())
915 // Let the debug map create the compile unit
916 cu_sp = m_debug_map_symfile->GetCompileUnit(this);
917 dwarf_cu->SetUserData(cu_sp.get());
921 ModuleSP module_sp (m_obj_file->GetModule());
924 const DWARFDebugInfoEntry * cu_die = dwarf_cu->GetCompileUnitDIEOnly ();
927 const char * cu_die_name = cu_die->GetName(this, dwarf_cu);
928 const char * cu_comp_dir = cu_die->GetAttributeValueAsString(this, dwarf_cu, DW_AT_comp_dir, NULL);
929 LanguageType cu_language = (LanguageType)cu_die->GetAttributeValueAsUnsigned(this, dwarf_cu, DW_AT_language, 0);
932 std::string ramapped_file;
933 FileSpec cu_file_spec;
935 if (cu_die_name[0] == '/' || cu_comp_dir == NULL || cu_comp_dir[0] == '\0')
937 // If we have a full path to the compile unit, we don't need to resolve
938 // the file. This can be expensive e.g. when the source files are NFS mounted.
939 if (module_sp->RemapSourceFile(cu_die_name, ramapped_file))
940 cu_file_spec.SetFile (ramapped_file.c_str(), false);
942 cu_file_spec.SetFile (cu_die_name, false);
946 std::string fullpath(cu_comp_dir);
947 if (*fullpath.rbegin() != '/')
949 fullpath += cu_die_name;
950 if (module_sp->RemapSourceFile (fullpath.c_str(), ramapped_file))
951 cu_file_spec.SetFile (ramapped_file.c_str(), false);
953 cu_file_spec.SetFile (fullpath.c_str(), false);
956 cu_sp.reset(new CompileUnit (module_sp,
959 MakeUserID(dwarf_cu->GetOffset()),
963 dwarf_cu->SetUserData(cu_sp.get());
965 // Figure out the compile unit index if we weren't given one
966 if (cu_idx == UINT32_MAX)
967 DebugInfo()->GetCompileUnit(dwarf_cu->GetOffset(), &cu_idx);
969 m_obj_file->GetModule()->GetSymbolVendor()->SetCompileUnitAtIndex(cu_idx, cu_sp);
981 SymbolFileDWARF::GetNumCompileUnits()
983 DWARFDebugInfo* info = DebugInfo();
985 return info->GetNumCompileUnits();
990 SymbolFileDWARF::ParseCompileUnitAtIndex(uint32_t cu_idx)
993 DWARFDebugInfo* info = DebugInfo();
996 DWARFCompileUnit* dwarf_cu = info->GetCompileUnitAtIndex(cu_idx);
998 cu_sp = ParseCompileUnit(dwarf_cu, cu_idx);
1004 AddRangesToBlock (Block& block,
1005 DWARFDebugRanges::RangeList& ranges,
1006 addr_t block_base_addr)
1008 const size_t num_ranges = ranges.GetSize();
1009 for (size_t i = 0; i<num_ranges; ++i)
1011 const DWARFDebugRanges::Range &range = ranges.GetEntryRef (i);
1012 const addr_t range_base = range.GetRangeBase();
1013 assert (range_base >= block_base_addr);
1014 block.AddRange(Block::Range (range_base - block_base_addr, range.GetByteSize()));;
1016 block.FinalizeRanges ();
1021 SymbolFileDWARF::ParseCompileUnitFunction (const SymbolContext& sc, DWARFCompileUnit* dwarf_cu, const DWARFDebugInfoEntry *die)
1023 DWARFDebugRanges::RangeList func_ranges;
1024 const char *name = NULL;
1025 const char *mangled = NULL;
1028 int decl_column = 0;
1031 int call_column = 0;
1032 DWARFExpression frame_base;
1034 assert (die->Tag() == DW_TAG_subprogram);
1036 if (die->Tag() != DW_TAG_subprogram)
1039 if (die->GetDIENamesAndRanges (this,
1052 // Union of all ranges in the function DIE (if the function is discontiguous)
1053 AddressRange func_range;
1054 lldb::addr_t lowest_func_addr = func_ranges.GetMinRangeBase (0);
1055 lldb::addr_t highest_func_addr = func_ranges.GetMaxRangeEnd (0);
1056 if (lowest_func_addr != LLDB_INVALID_ADDRESS && lowest_func_addr <= highest_func_addr)
1058 ModuleSP module_sp (m_obj_file->GetModule());
1059 func_range.GetBaseAddress().ResolveAddressUsingFileSections (lowest_func_addr, module_sp->GetSectionList());
1060 if (func_range.GetBaseAddress().IsValid())
1061 func_range.SetByteSize(highest_func_addr - lowest_func_addr);
1064 if (func_range.GetBaseAddress().IsValid())
1068 func_name.SetValue(ConstString(mangled), true);
1070 func_name.SetValue(ConstString(name), false);
1073 std::unique_ptr<Declaration> decl_ap;
1074 if (decl_file != 0 || decl_line != 0 || decl_column != 0)
1075 decl_ap.reset(new Declaration (sc.comp_unit->GetSupportFiles().GetFileSpecAtIndex(decl_file),
1079 // Supply the type _only_ if it has already been parsed
1080 Type *func_type = m_die_to_type.lookup (die);
1082 assert(func_type == NULL || func_type != DIE_IS_BEING_PARSED);
1084 if (FixupAddress (func_range.GetBaseAddress()))
1086 const user_id_t func_user_id = MakeUserID(die->GetOffset());
1087 func_sp.reset(new Function (sc.comp_unit,
1088 MakeUserID(func_user_id), // UserID is the DIE offset
1089 MakeUserID(func_user_id),
1092 func_range)); // first address range
1094 if (func_sp.get() != NULL)
1096 if (frame_base.IsValid())
1097 func_sp->GetFrameBaseExpression() = frame_base;
1098 sc.comp_unit->AddFunction(func_sp);
1099 return func_sp.get();
1108 SymbolFileDWARF::FixupAddress (Address &addr)
1110 SymbolFileDWARFDebugMap * debug_map_symfile = GetDebugMapSymfile ();
1111 if (debug_map_symfile)
1113 return debug_map_symfile->LinkOSOAddress(addr);
1115 // This is a normal DWARF file, no address fixups need to happen
1119 SymbolFileDWARF::ParseCompileUnitLanguage (const SymbolContext& sc)
1121 assert (sc.comp_unit);
1122 DWARFCompileUnit* dwarf_cu = GetDWARFCompileUnit(sc.comp_unit);
1125 const DWARFDebugInfoEntry *die = dwarf_cu->GetCompileUnitDIEOnly();
1128 const uint32_t language = die->GetAttributeValueAsUnsigned(this, dwarf_cu, DW_AT_language, 0);
1130 return (lldb::LanguageType)language;
1133 return eLanguageTypeUnknown;
1137 SymbolFileDWARF::ParseCompileUnitFunctions(const SymbolContext &sc)
1139 assert (sc.comp_unit);
1140 size_t functions_added = 0;
1141 DWARFCompileUnit* dwarf_cu = GetDWARFCompileUnit(sc.comp_unit);
1144 DWARFDIECollection function_dies;
1145 const size_t num_functions = dwarf_cu->AppendDIEsWithTag (DW_TAG_subprogram, function_dies);
1147 for (func_idx = 0; func_idx < num_functions; ++func_idx)
1149 const DWARFDebugInfoEntry *die = function_dies.GetDIEPtrAtIndex(func_idx);
1150 if (sc.comp_unit->FindFunctionByUID (MakeUserID(die->GetOffset())).get() == NULL)
1152 if (ParseCompileUnitFunction(sc, dwarf_cu, die))
1158 return functions_added;
1162 SymbolFileDWARF::ParseCompileUnitSupportFiles (const SymbolContext& sc, FileSpecList& support_files)
1164 assert (sc.comp_unit);
1165 DWARFCompileUnit* dwarf_cu = GetDWARFCompileUnit(sc.comp_unit);
1168 const DWARFDebugInfoEntry * cu_die = dwarf_cu->GetCompileUnitDIEOnly();
1172 const char * cu_comp_dir = cu_die->GetAttributeValueAsString(this, dwarf_cu, DW_AT_comp_dir, NULL);
1173 dw_offset_t stmt_list = cu_die->GetAttributeValueAsUnsigned(this, dwarf_cu, DW_AT_stmt_list, DW_INVALID_OFFSET);
1175 // All file indexes in DWARF are one based and a file of index zero is
1176 // supposed to be the compile unit itself.
1177 support_files.Append (*sc.comp_unit);
1179 return DWARFDebugLine::ParseSupportFiles(sc.comp_unit->GetModule(), get_debug_line_data(), cu_comp_dir, stmt_list, support_files);
1185 struct ParseDWARFLineTableCallbackInfo
1187 LineTable* line_table;
1188 std::unique_ptr<LineSequence> sequence_ap;
1191 //----------------------------------------------------------------------
1192 // ParseStatementTableCallback
1193 //----------------------------------------------------------------------
1195 ParseDWARFLineTableCallback(dw_offset_t offset, const DWARFDebugLine::State& state, void* userData)
1197 if (state.row == DWARFDebugLine::State::StartParsingLineTable)
1199 // Just started parsing the line table
1201 else if (state.row == DWARFDebugLine::State::DoneParsingLineTable)
1203 // Done parsing line table, nothing to do for the cleanup
1207 ParseDWARFLineTableCallbackInfo* info = (ParseDWARFLineTableCallbackInfo*)userData;
1208 LineTable* line_table = info->line_table;
1210 // If this is our first time here, we need to create a
1211 // sequence container.
1212 if (!info->sequence_ap.get())
1214 info->sequence_ap.reset(line_table->CreateLineSequenceContainer());
1215 assert(info->sequence_ap.get());
1217 line_table->AppendLineEntryToSequence (info->sequence_ap.get(),
1225 state.epilogue_begin,
1226 state.end_sequence);
1227 if (state.end_sequence)
1229 // First, put the current sequence into the line table.
1230 line_table->InsertSequence(info->sequence_ap.get());
1231 // Then, empty it to prepare for the next sequence.
1232 info->sequence_ap->Clear();
1238 SymbolFileDWARF::ParseCompileUnitLineTable (const SymbolContext &sc)
1240 assert (sc.comp_unit);
1241 if (sc.comp_unit->GetLineTable() != NULL)
1244 DWARFCompileUnit* dwarf_cu = GetDWARFCompileUnit(sc.comp_unit);
1247 const DWARFDebugInfoEntry *dwarf_cu_die = dwarf_cu->GetCompileUnitDIEOnly();
1250 const dw_offset_t cu_line_offset = dwarf_cu_die->GetAttributeValueAsUnsigned(this, dwarf_cu, DW_AT_stmt_list, DW_INVALID_OFFSET);
1251 if (cu_line_offset != DW_INVALID_OFFSET)
1253 std::unique_ptr<LineTable> line_table_ap(new LineTable(sc.comp_unit));
1254 if (line_table_ap.get())
1256 ParseDWARFLineTableCallbackInfo info;
1257 info.line_table = line_table_ap.get();
1258 lldb::offset_t offset = cu_line_offset;
1259 DWARFDebugLine::ParseStatementTable(get_debug_line_data(), &offset, ParseDWARFLineTableCallback, &info);
1260 if (m_debug_map_symfile)
1262 // We have an object file that has a line table with addresses
1263 // that are not linked. We need to link the line table and convert
1264 // the addresses that are relative to the .o file into addresses
1265 // for the main executable.
1266 sc.comp_unit->SetLineTable (m_debug_map_symfile->LinkOSOLineTable (this, line_table_ap.get()));
1270 sc.comp_unit->SetLineTable(line_table_ap.release());
1281 SymbolFileDWARF::ParseFunctionBlocks
1283 const SymbolContext& sc,
1284 Block *parent_block,
1285 DWARFCompileUnit* dwarf_cu,
1286 const DWARFDebugInfoEntry *die,
1287 addr_t subprogram_low_pc,
1291 size_t blocks_added = 0;
1294 dw_tag_t tag = die->Tag();
1298 case DW_TAG_inlined_subroutine:
1299 case DW_TAG_subprogram:
1300 case DW_TAG_lexical_block:
1302 Block *block = NULL;
1303 if (tag == DW_TAG_subprogram)
1305 // Skip any DW_TAG_subprogram DIEs that are inside
1306 // of a normal or inlined functions. These will be
1307 // parsed on their own as separate entities.
1312 block = parent_block;
1316 BlockSP block_sp(new Block (MakeUserID(die->GetOffset())));
1317 parent_block->AddChild(block_sp);
1318 block = block_sp.get();
1320 DWARFDebugRanges::RangeList ranges;
1321 const char *name = NULL;
1322 const char *mangled_name = NULL;
1326 int decl_column = 0;
1329 int call_column = 0;
1330 if (die->GetDIENamesAndRanges (this,
1335 decl_file, decl_line, decl_column,
1336 call_file, call_line, call_column))
1338 if (tag == DW_TAG_subprogram)
1340 assert (subprogram_low_pc == LLDB_INVALID_ADDRESS);
1341 subprogram_low_pc = ranges.GetMinRangeBase(0);
1343 else if (tag == DW_TAG_inlined_subroutine)
1345 // We get called here for inlined subroutines in two ways.
1346 // The first time is when we are making the Function object
1347 // for this inlined concrete instance. Since we're creating a top level block at
1348 // here, the subprogram_low_pc will be LLDB_INVALID_ADDRESS. So we need to
1349 // adjust the containing address.
1350 // The second time is when we are parsing the blocks inside the function that contains
1351 // the inlined concrete instance. Since these will be blocks inside the containing "real"
1352 // function the offset will be for that function.
1353 if (subprogram_low_pc == LLDB_INVALID_ADDRESS)
1355 subprogram_low_pc = ranges.GetMinRangeBase(0);
1359 AddRangesToBlock (*block, ranges, subprogram_low_pc);
1361 if (tag != DW_TAG_subprogram && (name != NULL || mangled_name != NULL))
1363 std::unique_ptr<Declaration> decl_ap;
1364 if (decl_file != 0 || decl_line != 0 || decl_column != 0)
1365 decl_ap.reset(new Declaration(sc.comp_unit->GetSupportFiles().GetFileSpecAtIndex(decl_file),
1366 decl_line, decl_column));
1368 std::unique_ptr<Declaration> call_ap;
1369 if (call_file != 0 || call_line != 0 || call_column != 0)
1370 call_ap.reset(new Declaration(sc.comp_unit->GetSupportFiles().GetFileSpecAtIndex(call_file),
1371 call_line, call_column));
1373 block->SetInlinedFunctionInfo (name, mangled_name, decl_ap.get(), call_ap.get());
1378 if (die->HasChildren())
1380 blocks_added += ParseFunctionBlocks (sc,
1383 die->GetFirstChild(),
1394 // Only parse siblings of the block if we are not at depth zero. A depth
1395 // of zero indicates we are currently parsing the top level
1396 // DW_TAG_subprogram DIE
1401 die = die->GetSibling();
1403 return blocks_added;
1407 SymbolFileDWARF::ParseTemplateDIE (DWARFCompileUnit* dwarf_cu,
1408 const DWARFDebugInfoEntry *die,
1409 ClangASTContext::TemplateParameterInfos &template_param_infos)
1411 const dw_tag_t tag = die->Tag();
1415 case DW_TAG_template_type_parameter:
1416 case DW_TAG_template_value_parameter:
1418 const uint8_t *fixed_form_sizes = DWARFFormValue::GetFixedFormSizesForAddressSize (dwarf_cu->GetAddressByteSize());
1420 DWARFDebugInfoEntry::Attributes attributes;
1421 const size_t num_attributes = die->GetAttributes (this,
1425 const char *name = NULL;
1426 Type *lldb_type = NULL;
1427 ClangASTType clang_type;
1428 uint64_t uval64 = 0;
1429 bool uval64_valid = false;
1430 if (num_attributes > 0)
1432 DWARFFormValue form_value;
1433 for (size_t i=0; i<num_attributes; ++i)
1435 const dw_attr_t attr = attributes.AttributeAtIndex(i);
1440 if (attributes.ExtractFormValueAtIndex(this, i, form_value))
1441 name = form_value.AsCString(&get_debug_str_data());
1445 if (attributes.ExtractFormValueAtIndex(this, i, form_value))
1447 const dw_offset_t type_die_offset = form_value.Reference(dwarf_cu);
1448 lldb_type = ResolveTypeUID(type_die_offset);
1450 clang_type = lldb_type->GetClangForwardType();
1454 case DW_AT_const_value:
1455 if (attributes.ExtractFormValueAtIndex(this, i, form_value))
1457 uval64_valid = true;
1458 uval64 = form_value.Unsigned();
1466 clang::ASTContext *ast = GetClangASTContext().getASTContext();
1468 clang_type = GetClangASTContext().GetBasicType(eBasicTypeVoid);
1472 bool is_signed = false;
1473 if (name && name[0])
1474 template_param_infos.names.push_back(name);
1476 template_param_infos.names.push_back(NULL);
1478 if (tag == DW_TAG_template_value_parameter &&
1479 lldb_type != NULL &&
1480 clang_type.IsIntegerType (is_signed) &&
1483 llvm::APInt apint (lldb_type->GetByteSize() * 8, uval64, is_signed);
1484 template_param_infos.args.push_back (clang::TemplateArgument (*ast,
1485 llvm::APSInt(apint),
1486 clang_type.GetQualType()));
1490 template_param_infos.args.push_back (clang::TemplateArgument (clang_type.GetQualType()));
1509 SymbolFileDWARF::ParseTemplateParameterInfos (DWARFCompileUnit* dwarf_cu,
1510 const DWARFDebugInfoEntry *parent_die,
1511 ClangASTContext::TemplateParameterInfos &template_param_infos)
1514 if (parent_die == NULL)
1517 Args template_parameter_names;
1518 for (const DWARFDebugInfoEntry *die = parent_die->GetFirstChild();
1520 die = die->GetSibling())
1522 const dw_tag_t tag = die->Tag();
1526 case DW_TAG_template_type_parameter:
1527 case DW_TAG_template_value_parameter:
1528 ParseTemplateDIE (dwarf_cu, die, template_param_infos);
1535 if (template_param_infos.args.empty())
1537 return template_param_infos.args.size() == template_param_infos.names.size();
1540 clang::ClassTemplateDecl *
1541 SymbolFileDWARF::ParseClassTemplateDecl (clang::DeclContext *decl_ctx,
1542 lldb::AccessType access_type,
1543 const char *parent_name,
1545 const ClangASTContext::TemplateParameterInfos &template_param_infos)
1547 if (template_param_infos.IsValid())
1549 std::string template_basename(parent_name);
1550 template_basename.erase (template_basename.find('<'));
1551 ClangASTContext &ast = GetClangASTContext();
1553 return ast.CreateClassTemplateDecl (decl_ctx,
1555 template_basename.c_str(),
1557 template_param_infos);
1562 class SymbolFileDWARF::DelayedAddObjCClassProperty
1565 DelayedAddObjCClassProperty
1567 const ClangASTType &class_opaque_type,
1568 const char *property_name,
1569 const ClangASTType &property_opaque_type, // The property type is only required if you don't have an ivar decl
1570 clang::ObjCIvarDecl *ivar_decl,
1571 const char *property_setter_name,
1572 const char *property_getter_name,
1573 uint32_t property_attributes,
1574 const ClangASTMetadata *metadata
1576 m_class_opaque_type (class_opaque_type),
1577 m_property_name (property_name),
1578 m_property_opaque_type (property_opaque_type),
1579 m_ivar_decl (ivar_decl),
1580 m_property_setter_name (property_setter_name),
1581 m_property_getter_name (property_getter_name),
1582 m_property_attributes (property_attributes)
1584 if (metadata != NULL)
1586 m_metadata_ap.reset(new ClangASTMetadata());
1587 *m_metadata_ap = *metadata;
1591 DelayedAddObjCClassProperty (const DelayedAddObjCClassProperty &rhs)
1596 DelayedAddObjCClassProperty& operator= (const DelayedAddObjCClassProperty &rhs)
1598 m_class_opaque_type = rhs.m_class_opaque_type;
1599 m_property_name = rhs.m_property_name;
1600 m_property_opaque_type = rhs.m_property_opaque_type;
1601 m_ivar_decl = rhs.m_ivar_decl;
1602 m_property_setter_name = rhs.m_property_setter_name;
1603 m_property_getter_name = rhs.m_property_getter_name;
1604 m_property_attributes = rhs.m_property_attributes;
1606 if (rhs.m_metadata_ap.get())
1608 m_metadata_ap.reset (new ClangASTMetadata());
1609 *m_metadata_ap = *rhs.m_metadata_ap;
1617 return m_class_opaque_type.AddObjCClassProperty (m_property_name,
1618 m_property_opaque_type,
1620 m_property_setter_name,
1621 m_property_getter_name,
1622 m_property_attributes,
1623 m_metadata_ap.get());
1626 ClangASTType m_class_opaque_type;
1627 const char *m_property_name;
1628 ClangASTType m_property_opaque_type;
1629 clang::ObjCIvarDecl *m_ivar_decl;
1630 const char *m_property_setter_name;
1631 const char *m_property_getter_name;
1632 uint32_t m_property_attributes;
1633 std::unique_ptr<ClangASTMetadata> m_metadata_ap;
1639 uint64_t bit_offset;
1642 bit_size (LLDB_INVALID_ADDRESS),
1643 bit_offset (LLDB_INVALID_ADDRESS)
1649 return (bit_size != LLDB_INVALID_ADDRESS) &&
1650 (bit_offset != LLDB_INVALID_ADDRESS);
1656 SymbolFileDWARF::ClassOrStructIsVirtual (DWARFCompileUnit* dwarf_cu,
1657 const DWARFDebugInfoEntry *parent_die)
1661 for (const DWARFDebugInfoEntry *die = parent_die->GetFirstChild(); die != NULL; die = die->GetSibling())
1663 dw_tag_t tag = die->Tag();
1664 bool check_virtuality = false;
1667 case DW_TAG_inheritance:
1668 case DW_TAG_subprogram:
1669 check_virtuality = true;
1674 if (check_virtuality)
1676 if (die->GetAttributeValueAsUnsigned(this, dwarf_cu, DW_AT_virtuality, 0) != 0)
1685 SymbolFileDWARF::ParseChildMembers
1687 const SymbolContext& sc,
1688 DWARFCompileUnit* dwarf_cu,
1689 const DWARFDebugInfoEntry *parent_die,
1690 ClangASTType &class_clang_type,
1691 const LanguageType class_language,
1692 std::vector<clang::CXXBaseSpecifier *>& base_classes,
1693 std::vector<int>& member_accessibilities,
1694 DWARFDIECollection& member_function_dies,
1695 DelayedPropertyList& delayed_properties,
1696 AccessType& default_accessibility,
1698 LayoutInfo &layout_info
1701 if (parent_die == NULL)
1705 const DWARFDebugInfoEntry *die;
1706 const uint8_t *fixed_form_sizes = DWARFFormValue::GetFixedFormSizesForAddressSize (dwarf_cu->GetAddressByteSize());
1707 uint32_t member_idx = 0;
1708 BitfieldInfo last_field_info;
1710 for (die = parent_die->GetFirstChild(); die != NULL; die = die->GetSibling())
1712 dw_tag_t tag = die->Tag();
1717 case DW_TAG_APPLE_property:
1719 DWARFDebugInfoEntry::Attributes attributes;
1720 const size_t num_attributes = die->GetAttributes (this,
1724 if (num_attributes > 0)
1727 //DWARFExpression location;
1728 const char *name = NULL;
1729 const char *prop_name = NULL;
1730 const char *prop_getter_name = NULL;
1731 const char *prop_setter_name = NULL;
1732 uint32_t prop_attributes = 0;
1735 bool is_artificial = false;
1736 lldb::user_id_t encoding_uid = LLDB_INVALID_UID;
1737 AccessType accessibility = eAccessNone;
1738 uint32_t member_byte_offset = UINT32_MAX;
1739 size_t byte_size = 0;
1740 size_t bit_offset = 0;
1741 size_t bit_size = 0;
1742 bool is_external = false; // On DW_TAG_members, this means the member is static
1744 for (i=0; i<num_attributes && !is_artificial; ++i)
1746 const dw_attr_t attr = attributes.AttributeAtIndex(i);
1747 DWARFFormValue form_value;
1748 if (attributes.ExtractFormValueAtIndex(this, i, form_value))
1752 case DW_AT_decl_file: decl.SetFile(sc.comp_unit->GetSupportFiles().GetFileSpecAtIndex(form_value.Unsigned())); break;
1753 case DW_AT_decl_line: decl.SetLine(form_value.Unsigned()); break;
1754 case DW_AT_decl_column: decl.SetColumn(form_value.Unsigned()); break;
1755 case DW_AT_name: name = form_value.AsCString(&get_debug_str_data()); break;
1756 case DW_AT_type: encoding_uid = form_value.Reference(dwarf_cu); break;
1757 case DW_AT_bit_offset: bit_offset = form_value.Unsigned(); break;
1758 case DW_AT_bit_size: bit_size = form_value.Unsigned(); break;
1759 case DW_AT_byte_size: byte_size = form_value.Unsigned(); break;
1760 case DW_AT_data_member_location:
1761 if (form_value.BlockData())
1763 Value initialValue(0);
1764 Value memberOffset(0);
1765 const DataExtractor& debug_info_data = get_debug_info_data();
1766 uint32_t block_length = form_value.Unsigned();
1767 uint32_t block_offset = form_value.BlockData() - debug_info_data.GetDataStart();
1768 if (DWARFExpression::Evaluate(NULL, // ExecutionContext *
1769 NULL, // ClangExpressionVariableList *
1770 NULL, // ClangExpressionDeclMap *
1771 NULL, // RegisterContext *
1780 member_byte_offset = memberOffset.ResolveValue(NULL).UInt();
1785 // With DWARF 3 and later, if the value is an integer constant,
1786 // this form value is the offset in bytes from the beginning
1787 // of the containing entity.
1788 member_byte_offset = form_value.Unsigned();
1792 case DW_AT_accessibility: accessibility = DW_ACCESS_to_AccessType (form_value.Unsigned()); break;
1793 case DW_AT_artificial: is_artificial = form_value.Boolean(); break;
1794 case DW_AT_APPLE_property_name: prop_name = form_value.AsCString(&get_debug_str_data()); break;
1795 case DW_AT_APPLE_property_getter: prop_getter_name = form_value.AsCString(&get_debug_str_data()); break;
1796 case DW_AT_APPLE_property_setter: prop_setter_name = form_value.AsCString(&get_debug_str_data()); break;
1797 case DW_AT_APPLE_property_attribute: prop_attributes = form_value.Unsigned(); break;
1798 case DW_AT_external: is_external = form_value.Boolean(); break;
1801 case DW_AT_declaration:
1802 case DW_AT_description:
1804 case DW_AT_visibility:
1813 ConstString fixed_getter;
1814 ConstString fixed_setter;
1816 // Check if the property getter/setter were provided as full
1817 // names. We want basenames, so we extract them.
1819 if (prop_getter_name && prop_getter_name[0] == '-')
1821 ObjCLanguageRuntime::MethodName prop_getter_method(prop_getter_name, true);
1822 prop_getter_name = prop_getter_method.GetSelector().GetCString();
1825 if (prop_setter_name && prop_setter_name[0] == '-')
1827 ObjCLanguageRuntime::MethodName prop_setter_method(prop_setter_name, true);
1828 prop_setter_name = prop_setter_method.GetSelector().GetCString();
1831 // If the names haven't been provided, they need to be
1834 if (!prop_getter_name)
1836 prop_getter_name = prop_name;
1838 if (!prop_setter_name && prop_name[0] && !(prop_attributes & DW_APPLE_PROPERTY_readonly))
1842 ss.Printf("set%c%s:",
1843 toupper(prop_name[0]),
1846 fixed_setter.SetCString(ss.GetData());
1847 prop_setter_name = fixed_setter.GetCString();
1851 // Clang has a DWARF generation bug where sometimes it
1852 // represents fields that are references with bad byte size
1853 // and bit size/offset information such as:
1855 // DW_AT_byte_size( 0x00 )
1856 // DW_AT_bit_size( 0x40 )
1857 // DW_AT_bit_offset( 0xffffffffffffffc0 )
1859 // So check the bit offset to make sure it is sane, and if
1860 // the values are not sane, remove them. If we don't do this
1861 // then we will end up with a crash if we try to use this
1862 // type in an expression when clang becomes unhappy with its
1863 // recycled debug info.
1865 if (bit_offset > 128)
1871 // FIXME: Make Clang ignore Objective-C accessibility for expressions
1872 if (class_language == eLanguageTypeObjC ||
1873 class_language == eLanguageTypeObjC_plus_plus)
1874 accessibility = eAccessNone;
1876 if (member_idx == 0 && !is_artificial && name && (strstr (name, "_vptr$") == name))
1878 // Not all compilers will mark the vtable pointer
1879 // member as artificial (llvm-gcc). We can't have
1880 // the virtual members in our classes otherwise it
1881 // throws off all child offsets since we end up
1882 // having and extra pointer sized member in our
1884 is_artificial = true;
1887 // Handle static members
1888 if (is_external && member_byte_offset == UINT32_MAX)
1890 Type *var_type = ResolveTypeUID(encoding_uid);
1894 if (accessibility == eAccessNone)
1895 accessibility = eAccessPublic;
1896 class_clang_type.AddVariableToRecordType (name,
1897 var_type->GetClangLayoutType(),
1903 if (is_artificial == false)
1905 Type *member_type = ResolveTypeUID(encoding_uid);
1907 clang::FieldDecl *field_decl = NULL;
1908 if (tag == DW_TAG_member)
1912 if (accessibility == eAccessNone)
1913 accessibility = default_accessibility;
1914 member_accessibilities.push_back(accessibility);
1916 BitfieldInfo this_field_info;
1918 this_field_info.bit_size = bit_size;
1920 if (member_byte_offset != UINT32_MAX || bit_size != 0)
1922 /////////////////////////////////////////////////////////////
1923 // How to locate a field given the DWARF debug information
1925 // AT_byte_size indicates the size of the word in which the
1926 // bit offset must be interpreted.
1928 // AT_data_member_location indicates the byte offset of the
1929 // word from the base address of the structure.
1931 // AT_bit_offset indicates how many bits into the word
1932 // (according to the host endianness) the low-order bit of
1933 // the field starts. AT_bit_offset can be negative.
1935 // AT_bit_size indicates the size of the field in bits.
1936 /////////////////////////////////////////////////////////////
1938 this_field_info.bit_offset = 0;
1940 this_field_info.bit_offset += (member_byte_offset == UINT32_MAX ? 0 : (member_byte_offset * 8));
1942 if (GetObjectFile()->GetByteOrder() == eByteOrderLittle)
1944 this_field_info.bit_offset += byte_size * 8;
1945 this_field_info.bit_offset -= (bit_offset + bit_size);
1949 this_field_info.bit_offset += bit_offset;
1953 // If the member to be emitted did not start on a character boundary and there is
1954 // empty space between the last field and this one, then we need to emit an
1955 // anonymous member filling up the space up to its start. There are three cases
1958 // 1 If the previous member ended on a character boundary, then we can emit an
1959 // anonymous member starting at the most recent character boundary.
1961 // 2 If the previous member did not end on a character boundary and the distance
1962 // from the end of the previous member to the current member is less than a
1963 // word width, then we can emit an anonymous member starting right after the
1964 // previous member and right before this member.
1966 // 3 If the previous member did not end on a character boundary and the distance
1967 // from the end of the previous member to the current member is greater than
1968 // or equal a word width, then we act as in Case 1.
1970 const uint64_t character_width = 8;
1971 const uint64_t word_width = 32;
1973 if (this_field_info.IsValid())
1975 // Objective-C has invalid DW_AT_bit_offset values in older versions
1976 // of clang, so we have to be careful and only insert unnammed bitfields
1977 // if we have a new enough clang.
1978 bool detect_unnamed_bitfields = true;
1980 if (class_language == eLanguageTypeObjC || class_language == eLanguageTypeObjC_plus_plus)
1981 detect_unnamed_bitfields = dwarf_cu->Supports_unnamed_objc_bitfields ();
1983 if (detect_unnamed_bitfields)
1985 BitfieldInfo anon_field_info;
1987 if ((this_field_info.bit_offset % character_width) != 0) // not char aligned
1989 uint64_t last_field_end = 0;
1991 if (last_field_info.IsValid())
1992 last_field_end = last_field_info.bit_offset + last_field_info.bit_size;
1994 if (this_field_info.bit_offset != last_field_end)
1996 if (((last_field_end % character_width) == 0) || // case 1
1997 (this_field_info.bit_offset - last_field_end >= word_width)) // case 3
1999 anon_field_info.bit_size = this_field_info.bit_offset % character_width;
2000 anon_field_info.bit_offset = this_field_info.bit_offset - anon_field_info.bit_size;
2004 anon_field_info.bit_size = this_field_info.bit_offset - last_field_end;
2005 anon_field_info.bit_offset = last_field_end;
2010 if (anon_field_info.IsValid())
2012 clang::FieldDecl *unnamed_bitfield_decl = class_clang_type.AddFieldToRecordType (NULL,
2013 GetClangASTContext().GetBuiltinTypeForEncodingAndBitSize(eEncodingSint, word_width),
2015 anon_field_info.bit_size);
2017 layout_info.field_offsets.insert(std::make_pair(unnamed_bitfield_decl, anon_field_info.bit_offset));
2022 ClangASTType member_clang_type = member_type->GetClangLayoutType();
2025 // Older versions of clang emit array[0] and array[1] in the same way (<rdar://problem/12566646>).
2026 // If the current field is at the end of the structure, then there is definitely no room for extra
2027 // elements and we override the type to array[0].
2029 ClangASTType member_array_element_type;
2030 uint64_t member_array_size;
2031 bool member_array_is_incomplete;
2033 if (member_clang_type.IsArrayType(&member_array_element_type,
2035 &member_array_is_incomplete) &&
2036 !member_array_is_incomplete)
2038 uint64_t parent_byte_size = parent_die->GetAttributeValueAsUnsigned(this, dwarf_cu, DW_AT_byte_size, UINT64_MAX);
2040 if (member_byte_offset >= parent_byte_size)
2042 if (member_array_size != 1)
2044 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,
2045 MakeUserID(die->GetOffset()),
2048 MakeUserID(parent_die->GetOffset()));
2051 member_clang_type = GetClangASTContext().CreateArrayType(member_array_element_type, 0, false);
2056 field_decl = class_clang_type.AddFieldToRecordType (name,
2061 GetClangASTContext().SetMetadataAsUserID (field_decl, MakeUserID(die->GetOffset()));
2063 if (this_field_info.IsValid())
2065 layout_info.field_offsets.insert(std::make_pair(field_decl, this_field_info.bit_offset));
2066 last_field_info = this_field_info;
2072 GetObjectFile()->GetModule()->ReportError ("0x%8.8" PRIx64 ": DW_TAG_member '%s' refers to type 0x%8.8" PRIx64 " which was unable to be parsed",
2073 MakeUserID(die->GetOffset()),
2077 GetObjectFile()->GetModule()->ReportError ("0x%8.8" PRIx64 ": DW_TAG_member refers to type 0x%8.8" PRIx64 " which was unable to be parsed",
2078 MakeUserID(die->GetOffset()),
2083 if (prop_name != NULL)
2085 clang::ObjCIvarDecl *ivar_decl = NULL;
2089 ivar_decl = clang::dyn_cast<clang::ObjCIvarDecl>(field_decl);
2090 assert (ivar_decl != NULL);
2093 ClangASTMetadata metadata;
2094 metadata.SetUserID (MakeUserID(die->GetOffset()));
2095 delayed_properties.push_back(DelayedAddObjCClassProperty(class_clang_type,
2097 member_type->GetClangLayoutType(),
2105 GetClangASTContext().SetMetadataAsUserID (ivar_decl, MakeUserID(die->GetOffset()));
2113 case DW_TAG_subprogram:
2114 // Let the type parsing code handle this one for us.
2115 member_function_dies.Append (die);
2118 case DW_TAG_inheritance:
2121 if (default_accessibility == eAccessNone)
2122 default_accessibility = eAccessPrivate;
2123 // TODO: implement DW_TAG_inheritance type parsing
2124 DWARFDebugInfoEntry::Attributes attributes;
2125 const size_t num_attributes = die->GetAttributes (this,
2129 if (num_attributes > 0)
2132 DWARFExpression location;
2133 lldb::user_id_t encoding_uid = LLDB_INVALID_UID;
2134 AccessType accessibility = default_accessibility;
2135 bool is_virtual = false;
2136 bool is_base_of_class = true;
2137 off_t member_byte_offset = 0;
2139 for (i=0; i<num_attributes; ++i)
2141 const dw_attr_t attr = attributes.AttributeAtIndex(i);
2142 DWARFFormValue form_value;
2143 if (attributes.ExtractFormValueAtIndex(this, i, form_value))
2147 case DW_AT_decl_file: decl.SetFile(sc.comp_unit->GetSupportFiles().GetFileSpecAtIndex(form_value.Unsigned())); break;
2148 case DW_AT_decl_line: decl.SetLine(form_value.Unsigned()); break;
2149 case DW_AT_decl_column: decl.SetColumn(form_value.Unsigned()); break;
2150 case DW_AT_type: encoding_uid = form_value.Reference(dwarf_cu); break;
2151 case DW_AT_data_member_location:
2152 if (form_value.BlockData())
2154 Value initialValue(0);
2155 Value memberOffset(0);
2156 const DataExtractor& debug_info_data = get_debug_info_data();
2157 uint32_t block_length = form_value.Unsigned();
2158 uint32_t block_offset = form_value.BlockData() - debug_info_data.GetDataStart();
2159 if (DWARFExpression::Evaluate (NULL,
2171 member_byte_offset = memberOffset.ResolveValue(NULL).UInt();
2176 // With DWARF 3 and later, if the value is an integer constant,
2177 // this form value is the offset in bytes from the beginning
2178 // of the containing entity.
2179 member_byte_offset = form_value.Unsigned();
2183 case DW_AT_accessibility:
2184 accessibility = DW_ACCESS_to_AccessType(form_value.Unsigned());
2187 case DW_AT_virtuality:
2188 is_virtual = form_value.Boolean();
2200 Type *base_class_type = ResolveTypeUID(encoding_uid);
2201 assert(base_class_type);
2203 ClangASTType base_class_clang_type = base_class_type->GetClangFullType();
2204 assert (base_class_clang_type);
2205 if (class_language == eLanguageTypeObjC)
2207 class_clang_type.SetObjCSuperClass(base_class_clang_type);
2211 base_classes.push_back (base_class_clang_type.CreateBaseClassSpecifier (accessibility,
2217 layout_info.vbase_offsets.insert(std::make_pair(class_clang_type.GetAsCXXRecordDecl(),
2218 clang::CharUnits::fromQuantity(member_byte_offset)));
2222 layout_info.base_offsets.insert(std::make_pair(class_clang_type.GetAsCXXRecordDecl(),
2223 clang::CharUnits::fromQuantity(member_byte_offset)));
2240 SymbolFileDWARF::GetClangDeclContextContainingTypeUID (lldb::user_id_t type_uid)
2242 DWARFDebugInfo* debug_info = DebugInfo();
2243 if (debug_info && UserIDMatches(type_uid))
2245 DWARFCompileUnitSP cu_sp;
2246 const DWARFDebugInfoEntry* die = debug_info->GetDIEPtr(type_uid, &cu_sp);
2248 return GetClangDeclContextContainingDIE (cu_sp.get(), die, NULL);
2254 SymbolFileDWARF::GetClangDeclContextForTypeUID (const lldb_private::SymbolContext &sc, lldb::user_id_t type_uid)
2256 if (UserIDMatches(type_uid))
2257 return GetClangDeclContextForDIEOffset (sc, type_uid);
2262 SymbolFileDWARF::ResolveTypeUID (lldb::user_id_t type_uid)
2264 if (UserIDMatches(type_uid))
2266 DWARFDebugInfo* debug_info = DebugInfo();
2269 DWARFCompileUnitSP cu_sp;
2270 const DWARFDebugInfoEntry* type_die = debug_info->GetDIEPtr(type_uid, &cu_sp);
2271 const bool assert_not_being_parsed = true;
2272 return ResolveTypeUID (cu_sp.get(), type_die, assert_not_being_parsed);
2279 SymbolFileDWARF::ResolveTypeUID (DWARFCompileUnit* cu, const DWARFDebugInfoEntry* die, bool assert_not_being_parsed)
2283 Log *log (LogChannelDWARF::GetLogIfAll(DWARF_LOG_DEBUG_INFO));
2285 GetObjectFile()->GetModule()->LogMessage (log,
2286 "SymbolFileDWARF::ResolveTypeUID (die = 0x%8.8x) %s '%s'",
2288 DW_TAG_value_to_name(die->Tag()),
2289 die->GetName(this, cu));
2291 // We might be coming in in the middle of a type tree (a class
2292 // withing a class, an enum within a class), so parse any needed
2293 // parent DIEs before we get to this one...
2294 const DWARFDebugInfoEntry *decl_ctx_die = GetDeclContextDIEContainingDIE (cu, die);
2295 switch (decl_ctx_die->Tag())
2297 case DW_TAG_structure_type:
2298 case DW_TAG_union_type:
2299 case DW_TAG_class_type:
2301 // Get the type, which could be a forward declaration
2303 GetObjectFile()->GetModule()->LogMessage (log,
2304 "SymbolFileDWARF::ResolveTypeUID (die = 0x%8.8x) %s '%s' resolve parent forward type for 0x%8.8x",
2306 DW_TAG_value_to_name(die->Tag()),
2307 die->GetName(this, cu),
2308 decl_ctx_die->GetOffset());
2310 // Type *parent_type = ResolveTypeUID (cu, decl_ctx_die, assert_not_being_parsed);
2311 // if (child_requires_parent_class_union_or_struct_to_be_completed(die->Tag()))
2314 // GetObjectFile()->GetModule()->LogMessage (log,
2315 // "SymbolFileDWARF::ResolveTypeUID (die = 0x%8.8x) %s '%s' resolve parent full type for 0x%8.8x since die is a function",
2316 // die->GetOffset(),
2317 // DW_TAG_value_to_name(die->Tag()),
2318 // die->GetName(this, cu),
2319 // decl_ctx_die->GetOffset());
2320 // // Ask the type to complete itself if it already hasn't since if we
2321 // // want a function (method or static) from a class, the class must
2322 // // create itself and add it's own methods and class functions.
2324 // parent_type->GetClangFullType();
2332 return ResolveType (cu, die);
2337 // This function is used when SymbolFileDWARFDebugMap owns a bunch of
2338 // SymbolFileDWARF objects to detect if this DWARF file is the one that
2339 // can resolve a clang_type.
2341 SymbolFileDWARF::HasForwardDeclForClangType (const ClangASTType &clang_type)
2343 ClangASTType clang_type_no_qualifiers = clang_type.RemoveFastQualifiers();
2344 const DWARFDebugInfoEntry* die = m_forward_decl_clang_type_to_die.lookup (clang_type_no_qualifiers.GetOpaqueQualType());
2350 SymbolFileDWARF::ResolveClangOpaqueTypeDefinition (ClangASTType &clang_type)
2352 // We have a struct/union/class/enum that needs to be fully resolved.
2353 ClangASTType clang_type_no_qualifiers = clang_type.RemoveFastQualifiers();
2354 const DWARFDebugInfoEntry* die = m_forward_decl_clang_type_to_die.lookup (clang_type_no_qualifiers.GetOpaqueQualType());
2357 // We have already resolved this type...
2360 // Once we start resolving this type, remove it from the forward declaration
2361 // map in case anyone child members or other types require this type to get resolved.
2362 // The type will get resolved when all of the calls to SymbolFileDWARF::ResolveClangOpaqueTypeDefinition
2364 m_forward_decl_clang_type_to_die.erase (clang_type_no_qualifiers.GetOpaqueQualType());
2367 // Disable external storage for this type so we don't get anymore
2368 // clang::ExternalASTSource queries for this type.
2369 clang_type.SetHasExternalStorage (false);
2371 DWARFDebugInfo* debug_info = DebugInfo();
2373 DWARFCompileUnit *dwarf_cu = debug_info->GetCompileUnitContainingDIE (die->GetOffset()).get();
2374 Type *type = m_die_to_type.lookup (die);
2376 const dw_tag_t tag = die->Tag();
2378 Log *log (LogChannelDWARF::GetLogIfAny(DWARF_LOG_DEBUG_INFO|DWARF_LOG_TYPE_COMPLETION));
2381 GetObjectFile()->GetModule()->LogMessageVerboseBacktrace (log,
2382 "0x%8.8" PRIx64 ": %s '%s' resolving forward declaration...",
2383 MakeUserID(die->GetOffset()),
2384 DW_TAG_value_to_name(tag),
2385 type->GetName().AsCString());
2388 assert (clang_type);
2389 DWARFDebugInfoEntry::Attributes attributes;
2393 case DW_TAG_structure_type:
2394 case DW_TAG_union_type:
2395 case DW_TAG_class_type:
2397 LayoutInfo layout_info;
2400 if (die->HasChildren())
2403 LanguageType class_language = eLanguageTypeUnknown;
2404 if (clang_type.IsObjCObjectOrInterfaceType())
2406 class_language = eLanguageTypeObjC;
2407 // For objective C we don't start the definition when
2408 // the class is created.
2409 clang_type.StartTagDeclarationDefinition ();
2412 int tag_decl_kind = -1;
2413 AccessType default_accessibility = eAccessNone;
2414 if (tag == DW_TAG_structure_type)
2416 tag_decl_kind = clang::TTK_Struct;
2417 default_accessibility = eAccessPublic;
2419 else if (tag == DW_TAG_union_type)
2421 tag_decl_kind = clang::TTK_Union;
2422 default_accessibility = eAccessPublic;
2424 else if (tag == DW_TAG_class_type)
2426 tag_decl_kind = clang::TTK_Class;
2427 default_accessibility = eAccessPrivate;
2430 SymbolContext sc(GetCompUnitForDWARFCompUnit(dwarf_cu));
2431 std::vector<clang::CXXBaseSpecifier *> base_classes;
2432 std::vector<int> member_accessibilities;
2433 bool is_a_class = false;
2434 // Parse members and base classes first
2435 DWARFDIECollection member_function_dies;
2437 DelayedPropertyList delayed_properties;
2438 ParseChildMembers (sc,
2444 member_accessibilities,
2445 member_function_dies,
2447 default_accessibility,
2451 // Now parse any methods if there were any...
2452 size_t num_functions = member_function_dies.Size();
2453 if (num_functions > 0)
2455 for (size_t i=0; i<num_functions; ++i)
2457 ResolveType(dwarf_cu, member_function_dies.GetDIEPtrAtIndex(i));
2461 if (class_language == eLanguageTypeObjC)
2463 std::string class_str (clang_type.GetTypeName());
2464 if (!class_str.empty())
2467 DIEArray method_die_offsets;
2468 if (m_using_apple_tables)
2470 if (m_apple_objc_ap.get())
2471 m_apple_objc_ap->FindByName(class_str.c_str(), method_die_offsets);
2478 ConstString class_name (class_str.c_str());
2479 m_objc_class_selectors_index.Find (class_name, method_die_offsets);
2482 if (!method_die_offsets.empty())
2484 DWARFDebugInfo* debug_info = DebugInfo();
2486 DWARFCompileUnit* method_cu = NULL;
2487 const size_t num_matches = method_die_offsets.size();
2488 for (size_t i=0; i<num_matches; ++i)
2490 const dw_offset_t die_offset = method_die_offsets[i];
2491 DWARFDebugInfoEntry *method_die = debug_info->GetDIEPtrWithCompileUnitHint (die_offset, &method_cu);
2494 ResolveType (method_cu, method_die);
2497 if (m_using_apple_tables)
2499 GetObjectFile()->GetModule()->ReportErrorIfModifyDetected ("the DWARF debug information has been modified (.apple_objc accelerator table had bad die 0x%8.8x for '%s')\n",
2500 die_offset, class_str.c_str());
2506 for (DelayedPropertyList::iterator pi = delayed_properties.begin(), pe = delayed_properties.end();
2513 // If we have a DW_TAG_structure_type instead of a DW_TAG_class_type we
2514 // need to tell the clang type it is actually a class.
2515 if (class_language != eLanguageTypeObjC)
2517 if (is_a_class && tag_decl_kind != clang::TTK_Class)
2518 clang_type.SetTagTypeKind (clang::TTK_Class);
2521 // Since DW_TAG_structure_type gets used for both classes
2522 // and structures, we may need to set any DW_TAG_member
2523 // fields to have a "private" access if none was specified.
2524 // When we parsed the child members we tracked that actual
2525 // accessibility value for each DW_TAG_member in the
2526 // "member_accessibilities" array. If the value for the
2527 // member is zero, then it was set to the "default_accessibility"
2528 // which for structs was "public". Below we correct this
2529 // by setting any fields to "private" that weren't correctly
2531 if (is_a_class && !member_accessibilities.empty())
2533 // This is a class and all members that didn't have
2534 // their access specified are private.
2535 clang_type.SetDefaultAccessForRecordFields (eAccessPrivate,
2536 &member_accessibilities.front(),
2537 member_accessibilities.size());
2540 if (!base_classes.empty())
2542 clang_type.SetBaseClassesForClassType (&base_classes.front(),
2543 base_classes.size());
2545 // Clang will copy each CXXBaseSpecifier in "base_classes"
2546 // so we have to free them all.
2547 ClangASTType::DeleteBaseClassSpecifiers (&base_classes.front(),
2548 base_classes.size());
2553 clang_type.BuildIndirectFields ();
2554 clang_type.CompleteTagDeclarationDefinition ();
2556 if (!layout_info.field_offsets.empty() ||
2557 !layout_info.base_offsets.empty() ||
2558 !layout_info.vbase_offsets.empty() )
2561 layout_info.bit_size = type->GetByteSize() * 8;
2562 if (layout_info.bit_size == 0)
2563 layout_info.bit_size = die->GetAttributeValueAsUnsigned(this, dwarf_cu, DW_AT_byte_size, 0) * 8;
2565 clang::CXXRecordDecl *record_decl = clang_type.GetAsCXXRecordDecl();
2570 GetObjectFile()->GetModule()->LogMessage (log,
2571 "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])",
2572 clang_type.GetOpaqueQualType(),
2574 layout_info.bit_size,
2575 layout_info.alignment,
2576 (uint32_t)layout_info.field_offsets.size(),
2577 (uint32_t)layout_info.base_offsets.size(),
2578 (uint32_t)layout_info.vbase_offsets.size());
2582 llvm::DenseMap <const clang::FieldDecl *, uint64_t>::const_iterator pos, end = layout_info.field_offsets.end();
2583 for (idx = 0, pos = layout_info.field_offsets.begin(); pos != end; ++pos, ++idx)
2585 GetObjectFile()->GetModule()->LogMessage (log,
2586 "SymbolFileDWARF::ResolveClangOpaqueTypeDefinition (clang_type = %p) field[%u] = { bit_offset=%u, name='%s' }",
2587 clang_type.GetOpaqueQualType(),
2589 (uint32_t)pos->second,
2590 pos->first->getNameAsString().c_str());
2595 llvm::DenseMap <const clang::CXXRecordDecl *, clang::CharUnits>::const_iterator base_pos, base_end = layout_info.base_offsets.end();
2596 for (idx = 0, base_pos = layout_info.base_offsets.begin(); base_pos != base_end; ++base_pos, ++idx)
2598 GetObjectFile()->GetModule()->LogMessage (log,
2599 "SymbolFileDWARF::ResolveClangOpaqueTypeDefinition (clang_type = %p) base[%u] = { byte_offset=%u, name='%s' }",
2600 clang_type.GetOpaqueQualType(),
2602 (uint32_t)base_pos->second.getQuantity(),
2603 base_pos->first->getNameAsString().c_str());
2607 llvm::DenseMap <const clang::CXXRecordDecl *, clang::CharUnits>::const_iterator vbase_pos, vbase_end = layout_info.vbase_offsets.end();
2608 for (idx = 0, vbase_pos = layout_info.vbase_offsets.begin(); vbase_pos != vbase_end; ++vbase_pos, ++idx)
2610 GetObjectFile()->GetModule()->LogMessage (log,
2611 "SymbolFileDWARF::ResolveClangOpaqueTypeDefinition (clang_type = %p) vbase[%u] = { byte_offset=%u, name='%s' }",
2612 clang_type.GetOpaqueQualType(),
2614 (uint32_t)vbase_pos->second.getQuantity(),
2615 vbase_pos->first->getNameAsString().c_str());
2619 m_record_decl_to_layout_map.insert(std::make_pair(record_decl, layout_info));
2626 case DW_TAG_enumeration_type:
2627 clang_type.StartTagDeclarationDefinition ();
2628 if (die->HasChildren())
2630 SymbolContext sc(GetCompUnitForDWARFCompUnit(dwarf_cu));
2631 bool is_signed = false;
2632 clang_type.IsIntegerType(is_signed);
2633 ParseChildEnumerators(sc, clang_type, is_signed, type->GetByteSize(), dwarf_cu, die);
2635 clang_type.CompleteTagDeclarationDefinition ();
2639 assert(false && "not a forward clang type decl!");
2646 SymbolFileDWARF::ResolveType (DWARFCompileUnit* dwarf_cu, const DWARFDebugInfoEntry* type_die, bool assert_not_being_parsed)
2648 if (type_die != NULL)
2650 Type *type = m_die_to_type.lookup (type_die);
2653 type = GetTypeForDIE (dwarf_cu, type_die).get();
2655 if (assert_not_being_parsed)
2657 if (type != DIE_IS_BEING_PARSED)
2660 GetObjectFile()->GetModule()->ReportError ("Parsing a die that is being parsed die: 0x%8.8x: %s %s",
2661 type_die->GetOffset(),
2662 DW_TAG_value_to_name(type_die->Tag()),
2663 type_die->GetName(this, dwarf_cu));
2673 SymbolFileDWARF::GetCompUnitForDWARFCompUnit (DWARFCompileUnit* dwarf_cu, uint32_t cu_idx)
2675 // Check if the symbol vendor already knows about this compile unit?
2676 if (dwarf_cu->GetUserData() == NULL)
2678 // The symbol vendor doesn't know about this compile unit, we
2679 // need to parse and add it to the symbol vendor object.
2680 return ParseCompileUnit(dwarf_cu, cu_idx).get();
2682 return (CompileUnit*)dwarf_cu->GetUserData();
2686 SymbolFileDWARF::GetFunction (DWARFCompileUnit* dwarf_cu, const DWARFDebugInfoEntry* func_die, SymbolContext& sc)
2689 // Check if the symbol vendor already knows about this compile unit?
2690 sc.comp_unit = GetCompUnitForDWARFCompUnit(dwarf_cu, UINT32_MAX);
2692 sc.function = sc.comp_unit->FindFunctionByUID (MakeUserID(func_die->GetOffset())).get();
2693 if (sc.function == NULL)
2694 sc.function = ParseCompileUnitFunction(sc, dwarf_cu, func_die);
2698 sc.module_sp = sc.function->CalculateSymbolContextModule();
2706 SymbolFileDWARF::ResolveSymbolContext (const Address& so_addr, uint32_t resolve_scope, SymbolContext& sc)
2708 Timer scoped_timer(__PRETTY_FUNCTION__,
2709 "SymbolFileDWARF::ResolveSymbolContext (so_addr = { section = %p, offset = 0x%" PRIx64 " }, resolve_scope = 0x%8.8x)",
2710 so_addr.GetSection().get(),
2711 so_addr.GetOffset(),
2713 uint32_t resolved = 0;
2714 if (resolve_scope & ( eSymbolContextCompUnit |
2715 eSymbolContextFunction |
2716 eSymbolContextBlock |
2717 eSymbolContextLineEntry))
2719 lldb::addr_t file_vm_addr = so_addr.GetFileAddress();
2721 DWARFDebugInfo* debug_info = DebugInfo();
2724 const dw_offset_t cu_offset = debug_info->GetCompileUnitAranges().FindAddress(file_vm_addr);
2725 if (cu_offset != DW_INVALID_OFFSET)
2727 uint32_t cu_idx = DW_INVALID_INDEX;
2728 DWARFCompileUnit* dwarf_cu = debug_info->GetCompileUnit(cu_offset, &cu_idx).get();
2731 sc.comp_unit = GetCompUnitForDWARFCompUnit(dwarf_cu, cu_idx);
2734 resolved |= eSymbolContextCompUnit;
2736 bool force_check_line_table = false;
2737 if (resolve_scope & (eSymbolContextFunction | eSymbolContextBlock))
2739 DWARFDebugInfoEntry *function_die = NULL;
2740 DWARFDebugInfoEntry *block_die = NULL;
2741 if (resolve_scope & eSymbolContextBlock)
2743 dwarf_cu->LookupAddress(file_vm_addr, &function_die, &block_die);
2747 dwarf_cu->LookupAddress(file_vm_addr, &function_die, NULL);
2750 if (function_die != NULL)
2752 sc.function = sc.comp_unit->FindFunctionByUID (MakeUserID(function_die->GetOffset())).get();
2753 if (sc.function == NULL)
2754 sc.function = ParseCompileUnitFunction(sc, dwarf_cu, function_die);
2758 // We might have had a compile unit that had discontiguous
2759 // address ranges where the gaps are symbols that don't have
2760 // any debug info. Discontiguous compile unit address ranges
2761 // should only happen when there aren't other functions from
2762 // other compile units in these gaps. This helps keep the size
2763 // of the aranges down.
2764 force_check_line_table = true;
2767 if (sc.function != NULL)
2769 resolved |= eSymbolContextFunction;
2771 if (resolve_scope & eSymbolContextBlock)
2773 Block& block = sc.function->GetBlock (true);
2775 if (block_die != NULL)
2776 sc.block = block.FindBlockByID (MakeUserID(block_die->GetOffset()));
2778 sc.block = block.FindBlockByID (MakeUserID(function_die->GetOffset()));
2780 resolved |= eSymbolContextBlock;
2785 if ((resolve_scope & eSymbolContextLineEntry) || force_check_line_table)
2787 LineTable *line_table = sc.comp_unit->GetLineTable();
2788 if (line_table != NULL)
2790 // And address that makes it into this function should be in terms
2791 // of this debug file if there is no debug map, or it will be an
2792 // address in the .o file which needs to be fixed up to be in terms
2793 // of the debug map executable. Either way, calling FixupAddress()
2794 // will work for us.
2795 Address exe_so_addr (so_addr);
2796 if (FixupAddress(exe_so_addr))
2798 if (line_table->FindLineEntryByAddress (exe_so_addr, sc.line_entry))
2800 resolved |= eSymbolContextLineEntry;
2806 if (force_check_line_table && !(resolved & eSymbolContextLineEntry))
2808 // We might have had a compile unit that had discontiguous
2809 // address ranges where the gaps are symbols that don't have
2810 // any debug info. Discontiguous compile unit address ranges
2811 // should only happen when there aren't other functions from
2812 // other compile units in these gaps. This helps keep the size
2813 // of the aranges down.
2814 sc.comp_unit = NULL;
2815 resolved &= ~eSymbolContextCompUnit;
2820 GetObjectFile()->GetModule()->ReportWarning ("0x%8.8x: compile unit %u failed to create a valid lldb_private::CompileUnit class.",
2834 SymbolFileDWARF::ResolveSymbolContext(const FileSpec& file_spec, uint32_t line, bool check_inlines, uint32_t resolve_scope, SymbolContextList& sc_list)
2836 const uint32_t prev_size = sc_list.GetSize();
2837 if (resolve_scope & eSymbolContextCompUnit)
2839 DWARFDebugInfo* debug_info = DebugInfo();
2843 DWARFCompileUnit* dwarf_cu = NULL;
2845 for (cu_idx = 0; (dwarf_cu = debug_info->GetCompileUnitAtIndex(cu_idx)) != NULL; ++cu_idx)
2847 CompileUnit *dc_cu = GetCompUnitForDWARFCompUnit(dwarf_cu, cu_idx);
2848 const bool full_match = file_spec.GetDirectory();
2849 bool file_spec_matches_cu_file_spec = dc_cu != NULL && FileSpec::Equal(file_spec, *dc_cu, full_match);
2850 if (check_inlines || file_spec_matches_cu_file_spec)
2852 SymbolContext sc (m_obj_file->GetModule());
2853 sc.comp_unit = GetCompUnitForDWARFCompUnit(dwarf_cu, cu_idx);
2856 uint32_t file_idx = UINT32_MAX;
2858 // If we are looking for inline functions only and we don't
2859 // find it in the support files, we are done.
2862 file_idx = sc.comp_unit->GetSupportFiles().FindFileIndex (1, file_spec, true);
2863 if (file_idx == UINT32_MAX)
2869 LineTable *line_table = sc.comp_unit->GetLineTable();
2871 if (line_table != NULL && line != 0)
2873 // We will have already looked up the file index if
2874 // we are searching for inline entries.
2876 file_idx = sc.comp_unit->GetSupportFiles().FindFileIndex (1, file_spec, true);
2878 if (file_idx != UINT32_MAX)
2880 uint32_t found_line;
2881 uint32_t line_idx = line_table->FindLineEntryIndexByFileIndex (0, file_idx, line, false, &sc.line_entry);
2882 found_line = sc.line_entry.line;
2884 while (line_idx != UINT32_MAX)
2888 if (resolve_scope & (eSymbolContextFunction | eSymbolContextBlock))
2890 const lldb::addr_t file_vm_addr = sc.line_entry.range.GetBaseAddress().GetFileAddress();
2891 if (file_vm_addr != LLDB_INVALID_ADDRESS)
2893 DWARFDebugInfoEntry *function_die = NULL;
2894 DWARFDebugInfoEntry *block_die = NULL;
2895 dwarf_cu->LookupAddress(file_vm_addr, &function_die, resolve_scope & eSymbolContextBlock ? &block_die : NULL);
2897 if (function_die != NULL)
2899 sc.function = sc.comp_unit->FindFunctionByUID (MakeUserID(function_die->GetOffset())).get();
2900 if (sc.function == NULL)
2901 sc.function = ParseCompileUnitFunction(sc, dwarf_cu, function_die);
2904 if (sc.function != NULL)
2906 Block& block = sc.function->GetBlock (true);
2908 if (block_die != NULL)
2909 sc.block = block.FindBlockByID (MakeUserID(block_die->GetOffset()));
2911 sc.block = block.FindBlockByID (MakeUserID(function_die->GetOffset()));
2917 line_idx = line_table->FindLineEntryIndexByFileIndex (line_idx + 1, file_idx, found_line, true, &sc.line_entry);
2921 else if (file_spec_matches_cu_file_spec && !check_inlines)
2923 // only append the context if we aren't looking for inline call sites
2924 // by file and line and if the file spec matches that of the compile unit
2928 else if (file_spec_matches_cu_file_spec && !check_inlines)
2930 // only append the context if we aren't looking for inline call sites
2931 // by file and line and if the file spec matches that of the compile unit
2942 return sc_list.GetSize() - prev_size;
2946 SymbolFileDWARF::Index ()
2951 Timer scoped_timer (__PRETTY_FUNCTION__,
2952 "SymbolFileDWARF::Index (%s)",
2953 GetObjectFile()->GetFileSpec().GetFilename().AsCString());
2955 DWARFDebugInfo* debug_info = DebugInfo();
2958 uint32_t cu_idx = 0;
2959 const uint32_t num_compile_units = GetNumCompileUnits();
2960 for (cu_idx = 0; cu_idx < num_compile_units; ++cu_idx)
2962 DWARFCompileUnit* dwarf_cu = debug_info->GetCompileUnitAtIndex(cu_idx);
2964 bool clear_dies = dwarf_cu->ExtractDIEsIfNeeded (false) > 1;
2966 dwarf_cu->Index (cu_idx,
2967 m_function_basename_index,
2968 m_function_fullname_index,
2969 m_function_method_index,
2970 m_function_selector_index,
2971 m_objc_class_selectors_index,
2976 // Keep memory down by clearing DIEs if this generate function
2977 // caused them to be parsed
2979 dwarf_cu->ClearDIEs (true);
2982 m_function_basename_index.Finalize();
2983 m_function_fullname_index.Finalize();
2984 m_function_method_index.Finalize();
2985 m_function_selector_index.Finalize();
2986 m_objc_class_selectors_index.Finalize();
2987 m_global_index.Finalize();
2988 m_type_index.Finalize();
2989 m_namespace_index.Finalize();
2991 #if defined (ENABLE_DEBUG_PRINTF)
2992 StreamFile s(stdout, false);
2993 s.Printf ("DWARF index for '%s':",
2994 GetObjectFile()->GetFileSpec().GetPath().c_str());
2995 s.Printf("\nFunction basenames:\n"); m_function_basename_index.Dump (&s);
2996 s.Printf("\nFunction fullnames:\n"); m_function_fullname_index.Dump (&s);
2997 s.Printf("\nFunction methods:\n"); m_function_method_index.Dump (&s);
2998 s.Printf("\nFunction selectors:\n"); m_function_selector_index.Dump (&s);
2999 s.Printf("\nObjective C class selectors:\n"); m_objc_class_selectors_index.Dump (&s);
3000 s.Printf("\nGlobals and statics:\n"); m_global_index.Dump (&s);
3001 s.Printf("\nTypes:\n"); m_type_index.Dump (&s);
3002 s.Printf("\nNamepaces:\n"); m_namespace_index.Dump (&s);
3008 SymbolFileDWARF::NamespaceDeclMatchesThisSymbolFile (const ClangNamespaceDecl *namespace_decl)
3010 if (namespace_decl == NULL)
3012 // Invalid namespace decl which means we aren't matching only things
3013 // in this symbol file, so return true to indicate it matches this
3018 clang::ASTContext *namespace_ast = namespace_decl->GetASTContext();
3020 if (namespace_ast == NULL)
3021 return true; // No AST in the "namespace_decl", return true since it
3022 // could then match any symbol file, including this one
3024 if (namespace_ast == GetClangASTContext().getASTContext())
3025 return true; // The ASTs match, return true
3027 // The namespace AST was valid, and it does not match...
3028 Log *log (LogChannelDWARF::GetLogIfAll(DWARF_LOG_LOOKUPS));
3031 GetObjectFile()->GetModule()->LogMessage(log, "Valid namespace does not match symbol file");
3037 SymbolFileDWARF::DIEIsInNamespace (const ClangNamespaceDecl *namespace_decl,
3038 DWARFCompileUnit* cu,
3039 const DWARFDebugInfoEntry* die)
3041 // No namespace specified, so the answesr i
3042 if (namespace_decl == NULL)
3045 Log *log (LogChannelDWARF::GetLogIfAll(DWARF_LOG_LOOKUPS));
3047 const DWARFDebugInfoEntry *decl_ctx_die = NULL;
3048 clang::DeclContext *die_clang_decl_ctx = GetClangDeclContextContainingDIE (cu, die, &decl_ctx_die);
3051 clang::NamespaceDecl *clang_namespace_decl = namespace_decl->GetNamespaceDecl();
3053 if (clang_namespace_decl)
3055 if (decl_ctx_die->Tag() != DW_TAG_namespace)
3058 GetObjectFile()->GetModule()->LogMessage(log, "Found a match, but its parent is not a namespace");
3062 if (clang_namespace_decl == die_clang_decl_ctx)
3069 // We have a namespace_decl that was not NULL but it contained
3070 // a NULL "clang::NamespaceDecl", so this means the global namespace
3071 // So as long the the contained decl context DIE isn't a namespace
3073 if (decl_ctx_die->Tag() != DW_TAG_namespace)
3079 GetObjectFile()->GetModule()->LogMessage(log, "Found a match, but its parent doesn't exist");
3084 SymbolFileDWARF::FindGlobalVariables (const ConstString &name, const lldb_private::ClangNamespaceDecl *namespace_decl, bool append, uint32_t max_matches, VariableList& variables)
3086 Log *log (LogChannelDWARF::GetLogIfAll(DWARF_LOG_LOOKUPS));
3090 GetObjectFile()->GetModule()->LogMessage (log,
3091 "SymbolFileDWARF::FindGlobalVariables (name=\"%s\", namespace_decl=%p, append=%u, max_matches=%u, variables)",
3098 if (!NamespaceDeclMatchesThisSymbolFile(namespace_decl))
3101 DWARFDebugInfo* info = DebugInfo();
3105 // If we aren't appending the results to this list, then clear the list
3109 // Remember how many variables are in the list before we search in case
3110 // we are appending the results to a variable list.
3111 const uint32_t original_size = variables.GetSize();
3113 DIEArray die_offsets;
3115 if (m_using_apple_tables)
3117 if (m_apple_names_ap.get())
3119 const char *name_cstr = name.GetCString();
3120 const char *base_name_start;
3121 const char *base_name_end = NULL;
3123 if (!CPPLanguageRuntime::StripNamespacesFromVariableName(name_cstr, base_name_start, base_name_end))
3124 base_name_start = name_cstr;
3126 m_apple_names_ap->FindByName (base_name_start, die_offsets);
3131 // Index the DWARF if we haven't already
3135 m_global_index.Find (name, die_offsets);
3138 const size_t num_die_matches = die_offsets.size();
3139 if (num_die_matches)
3142 sc.module_sp = m_obj_file->GetModule();
3143 assert (sc.module_sp);
3145 DWARFDebugInfo* debug_info = DebugInfo();
3146 DWARFCompileUnit* dwarf_cu = NULL;
3147 const DWARFDebugInfoEntry* die = NULL;
3149 for (size_t i=0; i<num_die_matches && !done; ++i)
3151 const dw_offset_t die_offset = die_offsets[i];
3152 die = debug_info->GetDIEPtrWithCompileUnitHint (die_offset, &dwarf_cu);
3159 case DW_TAG_subprogram:
3160 case DW_TAG_inlined_subroutine:
3161 case DW_TAG_try_block:
3162 case DW_TAG_catch_block:
3165 case DW_TAG_variable:
3167 sc.comp_unit = GetCompUnitForDWARFCompUnit(dwarf_cu, UINT32_MAX);
3169 if (namespace_decl && !DIEIsInNamespace (namespace_decl, dwarf_cu, die))
3172 ParseVariables(sc, dwarf_cu, LLDB_INVALID_ADDRESS, die, false, false, &variables);
3174 if (variables.GetSize() - original_size >= max_matches)
3182 if (m_using_apple_tables)
3184 GetObjectFile()->GetModule()->ReportErrorIfModifyDetected ("the DWARF debug information has been modified (.apple_names accelerator table had bad die 0x%8.8x for '%s')\n",
3185 die_offset, name.GetCString());
3191 // Return the number of variable that were appended to the list
3192 const uint32_t num_matches = variables.GetSize() - original_size;
3193 if (log && num_matches > 0)
3195 GetObjectFile()->GetModule()->LogMessage (log,
3196 "SymbolFileDWARF::FindGlobalVariables (name=\"%s\", namespace_decl=%p, append=%u, max_matches=%u, variables) => %u",
3207 SymbolFileDWARF::FindGlobalVariables(const RegularExpression& regex, bool append, uint32_t max_matches, VariableList& variables)
3209 Log *log (LogChannelDWARF::GetLogIfAll(DWARF_LOG_LOOKUPS));
3213 GetObjectFile()->GetModule()->LogMessage (log,
3214 "SymbolFileDWARF::FindGlobalVariables (regex=\"%s\", append=%u, max_matches=%u, variables)",
3220 DWARFDebugInfo* info = DebugInfo();
3224 // If we aren't appending the results to this list, then clear the list
3228 // Remember how many variables are in the list before we search in case
3229 // we are appending the results to a variable list.
3230 const uint32_t original_size = variables.GetSize();
3232 DIEArray die_offsets;
3234 if (m_using_apple_tables)
3236 if (m_apple_names_ap.get())
3238 DWARFMappedHash::DIEInfoArray hash_data_array;
3239 if (m_apple_names_ap->AppendAllDIEsThatMatchingRegex (regex, hash_data_array))
3240 DWARFMappedHash::ExtractDIEArray (hash_data_array, die_offsets);
3245 // Index the DWARF if we haven't already
3249 m_global_index.Find (regex, die_offsets);
3253 sc.module_sp = m_obj_file->GetModule();
3254 assert (sc.module_sp);
3256 DWARFCompileUnit* dwarf_cu = NULL;
3257 const DWARFDebugInfoEntry* die = NULL;
3258 const size_t num_matches = die_offsets.size();
3261 DWARFDebugInfo* debug_info = DebugInfo();
3262 for (size_t i=0; i<num_matches; ++i)
3264 const dw_offset_t die_offset = die_offsets[i];
3265 die = debug_info->GetDIEPtrWithCompileUnitHint (die_offset, &dwarf_cu);
3269 sc.comp_unit = GetCompUnitForDWARFCompUnit(dwarf_cu, UINT32_MAX);
3271 ParseVariables(sc, dwarf_cu, LLDB_INVALID_ADDRESS, die, false, false, &variables);
3273 if (variables.GetSize() - original_size >= max_matches)
3278 if (m_using_apple_tables)
3280 GetObjectFile()->GetModule()->ReportErrorIfModifyDetected ("the DWARF debug information has been modified (.apple_names accelerator table had bad die 0x%8.8x for regex '%s')\n",
3281 die_offset, regex.GetText());
3287 // Return the number of variable that were appended to the list
3288 return variables.GetSize() - original_size;
3293 SymbolFileDWARF::ResolveFunction (dw_offset_t die_offset,
3294 DWARFCompileUnit *&dwarf_cu,
3295 SymbolContextList& sc_list)
3297 const DWARFDebugInfoEntry *die = DebugInfo()->GetDIEPtrWithCompileUnitHint (die_offset, &dwarf_cu);
3298 return ResolveFunction (dwarf_cu, die, sc_list);
3303 SymbolFileDWARF::ResolveFunction (DWARFCompileUnit *cu,
3304 const DWARFDebugInfoEntry *die,
3305 SymbolContextList& sc_list)
3312 // If we were passed a die that is not a function, just return false...
3313 if (die->Tag() != DW_TAG_subprogram && die->Tag() != DW_TAG_inlined_subroutine)
3316 const DWARFDebugInfoEntry* inlined_die = NULL;
3317 if (die->Tag() == DW_TAG_inlined_subroutine)
3321 while ((die = die->GetParent()) != NULL)
3323 if (die->Tag() == DW_TAG_subprogram)
3327 assert (die->Tag() == DW_TAG_subprogram);
3328 if (GetFunction (cu, die, sc))
3331 // Parse all blocks if needed
3334 sc.block = sc.function->GetBlock (true).FindBlockByID (MakeUserID(inlined_die->GetOffset()));
3335 assert (sc.block != NULL);
3336 if (sc.block->GetStartAddress (addr) == false)
3342 addr = sc.function->GetAddressRange().GetBaseAddress();
3356 SymbolFileDWARF::FindFunctions (const ConstString &name,
3357 const NameToDIE &name_to_die,
3358 SymbolContextList& sc_list)
3360 DIEArray die_offsets;
3361 if (name_to_die.Find (name, die_offsets))
3363 ParseFunctions (die_offsets, sc_list);
3369 SymbolFileDWARF::FindFunctions (const RegularExpression ®ex,
3370 const NameToDIE &name_to_die,
3371 SymbolContextList& sc_list)
3373 DIEArray die_offsets;
3374 if (name_to_die.Find (regex, die_offsets))
3376 ParseFunctions (die_offsets, sc_list);
3382 SymbolFileDWARF::FindFunctions (const RegularExpression ®ex,
3383 const DWARFMappedHash::MemoryTable &memory_table,
3384 SymbolContextList& sc_list)
3386 DIEArray die_offsets;
3387 DWARFMappedHash::DIEInfoArray hash_data_array;
3388 if (memory_table.AppendAllDIEsThatMatchingRegex (regex, hash_data_array))
3390 DWARFMappedHash::ExtractDIEArray (hash_data_array, die_offsets);
3391 ParseFunctions (die_offsets, sc_list);
3396 SymbolFileDWARF::ParseFunctions (const DIEArray &die_offsets,
3397 SymbolContextList& sc_list)
3399 const size_t num_matches = die_offsets.size();
3404 DWARFCompileUnit* dwarf_cu = NULL;
3405 for (size_t i=0; i<num_matches; ++i)
3407 const dw_offset_t die_offset = die_offsets[i];
3408 ResolveFunction (die_offset, dwarf_cu, sc_list);
3414 SymbolFileDWARF::FunctionDieMatchesPartialName (const DWARFDebugInfoEntry* die,
3415 const DWARFCompileUnit *dwarf_cu,
3416 uint32_t name_type_mask,
3417 const char *partial_name,
3418 const char *base_name_start,
3419 const char *base_name_end)
3421 // If we are looking only for methods, throw away all the ones that are or aren't in C++ classes:
3422 if (name_type_mask == eFunctionNameTypeMethod || name_type_mask == eFunctionNameTypeBase)
3424 clang::DeclContext *containing_decl_ctx = GetClangDeclContextContainingDIEOffset(die->GetOffset());
3425 if (!containing_decl_ctx)
3428 bool is_cxx_method = DeclKindIsCXXClass(containing_decl_ctx->getDeclKind());
3430 if (name_type_mask == eFunctionNameTypeMethod)
3432 if (is_cxx_method == false)
3436 if (name_type_mask == eFunctionNameTypeBase)
3438 if (is_cxx_method == true)
3443 // Now we need to check whether the name we got back for this type matches the extra specifications
3444 // that were in the name we're looking up:
3445 if (base_name_start != partial_name || *base_name_end != '\0')
3447 // First see if the stuff to the left matches the full name. To do that let's see if
3448 // we can pull out the mips linkage name attribute:
3451 DWARFDebugInfoEntry::Attributes attributes;
3452 DWARFFormValue form_value;
3453 die->GetAttributes(this, dwarf_cu, NULL, attributes);
3454 uint32_t idx = attributes.FindAttributeIndex(DW_AT_MIPS_linkage_name);
3455 if (idx == UINT32_MAX)
3456 idx = attributes.FindAttributeIndex(DW_AT_linkage_name);
3457 if (idx != UINT32_MAX)
3459 if (attributes.ExtractFormValueAtIndex(this, idx, form_value))
3461 const char *mangled_name = form_value.AsCString(&get_debug_str_data());
3463 best_name.SetValue (ConstString(mangled_name), true);
3469 idx = attributes.FindAttributeIndex(DW_AT_name);
3470 if (idx != UINT32_MAX && attributes.ExtractFormValueAtIndex(this, idx, form_value))
3472 const char *name = form_value.AsCString(&get_debug_str_data());
3473 best_name.SetValue (ConstString(name), false);
3477 if (best_name.GetDemangledName())
3479 const char *demangled = best_name.GetDemangledName().GetCString();
3482 std::string name_no_parens(partial_name, base_name_end - partial_name);
3483 const char *partial_in_demangled = strstr (demangled, name_no_parens.c_str());
3484 if (partial_in_demangled == NULL)
3488 // Sort out the case where our name is something like "Process::Destroy" and the match is
3489 // "SBProcess::Destroy" - that shouldn't be a match. We should really always match on
3490 // namespace boundaries...
3492 if (partial_name[0] == ':' && partial_name[1] == ':')
3494 // The partial name was already on a namespace boundary so all matches are good.
3497 else if (partial_in_demangled == demangled)
3499 // They both start the same, so this is an good match.
3504 if (partial_in_demangled - demangled == 1)
3506 // Only one character difference, can't be a namespace boundary...
3509 else if (*(partial_in_demangled - 1) == ':' && *(partial_in_demangled - 2) == ':')
3511 // We are on a namespace boundary, so this is also good.
3526 SymbolFileDWARF::FindFunctions (const ConstString &name,
3527 const lldb_private::ClangNamespaceDecl *namespace_decl,
3528 uint32_t name_type_mask,
3529 bool include_inlines,
3531 SymbolContextList& sc_list)
3533 Timer scoped_timer (__PRETTY_FUNCTION__,
3534 "SymbolFileDWARF::FindFunctions (name = '%s')",
3537 // eFunctionNameTypeAuto should be pre-resolved by a call to Module::PrepareForFunctionNameLookup()
3538 assert ((name_type_mask & eFunctionNameTypeAuto) == 0);
3540 Log *log (LogChannelDWARF::GetLogIfAll(DWARF_LOG_LOOKUPS));
3544 GetObjectFile()->GetModule()->LogMessage (log,
3545 "SymbolFileDWARF::FindFunctions (name=\"%s\", name_type_mask=0x%x, append=%u, sc_list)",
3551 // If we aren't appending the results to this list, then clear the list
3555 if (!NamespaceDeclMatchesThisSymbolFile(namespace_decl))
3558 // If name is empty then we won't find anything.
3562 // Remember how many sc_list are in the list before we search in case
3563 // we are appending the results to a variable list.
3565 const char *name_cstr = name.GetCString();
3567 const uint32_t original_size = sc_list.GetSize();
3569 DWARFDebugInfo* info = DebugInfo();
3573 DWARFCompileUnit *dwarf_cu = NULL;
3574 std::set<const DWARFDebugInfoEntry *> resolved_dies;
3575 if (m_using_apple_tables)
3577 if (m_apple_names_ap.get())
3580 DIEArray die_offsets;
3582 uint32_t num_matches = 0;
3584 if (name_type_mask & eFunctionNameTypeFull)
3586 // If they asked for the full name, match what they typed. At some point we may
3587 // want to canonicalize this (strip double spaces, etc. For now, we just add all the
3588 // dies that we find by exact match.
3589 num_matches = m_apple_names_ap->FindByName (name_cstr, die_offsets);
3590 for (uint32_t i = 0; i < num_matches; i++)
3592 const dw_offset_t die_offset = die_offsets[i];
3593 const DWARFDebugInfoEntry *die = info->GetDIEPtrWithCompileUnitHint (die_offset, &dwarf_cu);
3596 if (namespace_decl && !DIEIsInNamespace (namespace_decl, dwarf_cu, die))
3599 if (!include_inlines && die->Tag() == DW_TAG_inlined_subroutine)
3602 if (resolved_dies.find(die) == resolved_dies.end())
3604 if (ResolveFunction (dwarf_cu, die, sc_list))
3605 resolved_dies.insert(die);
3610 GetObjectFile()->GetModule()->ReportErrorIfModifyDetected ("the DWARF debug information has been modified (.apple_names accelerator table had bad die 0x%8.8x for '%s')",
3611 die_offset, name_cstr);
3616 if (name_type_mask & eFunctionNameTypeSelector)
3618 if (namespace_decl && *namespace_decl)
3619 return 0; // no selectors in namespaces
3621 num_matches = m_apple_names_ap->FindByName (name_cstr, die_offsets);
3622 // Now make sure these are actually ObjC methods. In this case we can simply look up the name,
3623 // and if it is an ObjC method name, we're good.
3625 for (uint32_t i = 0; i < num_matches; i++)
3627 const dw_offset_t die_offset = die_offsets[i];
3628 const DWARFDebugInfoEntry* die = info->GetDIEPtrWithCompileUnitHint (die_offset, &dwarf_cu);
3631 const char *die_name = die->GetName(this, dwarf_cu);
3632 if (ObjCLanguageRuntime::IsPossibleObjCMethodName(die_name))
3634 if (!include_inlines && die->Tag() == DW_TAG_inlined_subroutine)
3637 if (resolved_dies.find(die) == resolved_dies.end())
3639 if (ResolveFunction (dwarf_cu, die, sc_list))
3640 resolved_dies.insert(die);
3646 GetObjectFile()->GetModule()->ReportError ("the DWARF debug information has been modified (.apple_names accelerator table had bad die 0x%8.8x for '%s')",
3647 die_offset, name_cstr);
3650 die_offsets.clear();
3653 if (((name_type_mask & eFunctionNameTypeMethod) && !namespace_decl) || name_type_mask & eFunctionNameTypeBase)
3655 // The apple_names table stores just the "base name" of C++ methods in the table. So we have to
3656 // extract the base name, look that up, and if there is any other information in the name we were
3657 // passed in we have to post-filter based on that.
3659 // FIXME: Arrange the logic above so that we don't calculate the base name twice:
3660 num_matches = m_apple_names_ap->FindByName (name_cstr, die_offsets);
3662 for (uint32_t i = 0; i < num_matches; i++)
3664 const dw_offset_t die_offset = die_offsets[i];
3665 const DWARFDebugInfoEntry* die = info->GetDIEPtrWithCompileUnitHint (die_offset, &dwarf_cu);
3668 if (!include_inlines && die->Tag() == DW_TAG_inlined_subroutine)
3671 if (namespace_decl && !DIEIsInNamespace (namespace_decl, dwarf_cu, die))
3674 // If we get to here, the die is good, and we should add it:
3675 if (resolved_dies.find(die) == resolved_dies.end())
3676 if (ResolveFunction (dwarf_cu, die, sc_list))
3678 bool keep_die = true;
3679 if ((name_type_mask & (eFunctionNameTypeBase|eFunctionNameTypeMethod)) != (eFunctionNameTypeBase|eFunctionNameTypeMethod))
3681 // We are looking for either basenames or methods, so we need to
3682 // trim out the ones we won't want by looking at the type
3684 if (sc_list.GetLastContext(sc))
3688 // We have an inlined function
3690 else if (sc.function)
3692 Type *type = sc.function->GetType();
3694 clang::DeclContext* decl_ctx = GetClangDeclContextContainingTypeUID (type->GetID());
3695 if (decl_ctx->isRecord())
3697 if (name_type_mask & eFunctionNameTypeBase)
3699 sc_list.RemoveContextAtIndex(sc_list.GetSize()-1);
3705 if (name_type_mask & eFunctionNameTypeMethod)
3707 sc_list.RemoveContextAtIndex(sc_list.GetSize()-1);
3715 resolved_dies.insert(die);
3720 GetObjectFile()->GetModule()->ReportErrorIfModifyDetected ("the DWARF debug information has been modified (.apple_names accelerator table had bad die 0x%8.8x for '%s')",
3721 die_offset, name_cstr);
3724 die_offsets.clear();
3731 // Index the DWARF if we haven't already
3735 if (name_type_mask & eFunctionNameTypeFull)
3737 FindFunctions (name, m_function_fullname_index, sc_list);
3739 // Temporary workaround for global/anonymous namespace functions on linux
3740 #if defined (__linux__)
3741 // If we didn't find any functions in the global namespace try
3742 // looking in the basename index but ignore any returned
3743 // functions that have a namespace (ie. mangled names starting with
3744 // '_ZN') but keep functions which have an anonymous namespace
3745 if (sc_list.GetSize() == 0)
3747 SymbolContextList temp_sc_list;
3748 FindFunctions (name, m_function_basename_index, temp_sc_list);
3749 if (!namespace_decl)
3752 for (uint32_t i = 0; i < temp_sc_list.GetSize(); i++)
3754 if (temp_sc_list.GetContextAtIndex(i, sc))
3756 ConstString mangled_name = sc.GetFunctionName(Mangled::ePreferMangled);
3757 ConstString demangled_name = sc.GetFunctionName(Mangled::ePreferDemangled);
3758 if (strncmp(mangled_name.GetCString(), "_ZN", 3) ||
3759 !strncmp(demangled_name.GetCString(), "(anonymous namespace)", 21))
3769 DIEArray die_offsets;
3770 DWARFCompileUnit *dwarf_cu = NULL;
3772 if (name_type_mask & eFunctionNameTypeBase)
3774 uint32_t num_base = m_function_basename_index.Find(name, die_offsets);
3775 for (uint32_t i = 0; i < num_base; i++)
3777 const DWARFDebugInfoEntry* die = info->GetDIEPtrWithCompileUnitHint (die_offsets[i], &dwarf_cu);
3780 if (!include_inlines && die->Tag() == DW_TAG_inlined_subroutine)
3783 if (namespace_decl && !DIEIsInNamespace (namespace_decl, dwarf_cu, die))
3786 // If we get to here, the die is good, and we should add it:
3787 if (resolved_dies.find(die) == resolved_dies.end())
3789 if (ResolveFunction (dwarf_cu, die, sc_list))
3790 resolved_dies.insert(die);
3794 die_offsets.clear();
3797 if (name_type_mask & eFunctionNameTypeMethod)
3799 if (namespace_decl && *namespace_decl)
3800 return 0; // no methods in namespaces
3802 uint32_t num_base = m_function_method_index.Find(name, die_offsets);
3804 for (uint32_t i = 0; i < num_base; i++)
3806 const DWARFDebugInfoEntry* die = info->GetDIEPtrWithCompileUnitHint (die_offsets[i], &dwarf_cu);
3809 if (!include_inlines && die->Tag() == DW_TAG_inlined_subroutine)
3812 // If we get to here, the die is good, and we should add it:
3813 if (resolved_dies.find(die) == resolved_dies.end())
3815 if (ResolveFunction (dwarf_cu, die, sc_list))
3816 resolved_dies.insert(die);
3821 die_offsets.clear();
3824 if ((name_type_mask & eFunctionNameTypeSelector) && (!namespace_decl || !*namespace_decl))
3826 FindFunctions (name, m_function_selector_index, sc_list);
3831 // Return the number of variable that were appended to the list
3832 const uint32_t num_matches = sc_list.GetSize() - original_size;
3834 if (log && num_matches > 0)
3836 GetObjectFile()->GetModule()->LogMessage (log,
3837 "SymbolFileDWARF::FindFunctions (name=\"%s\", name_type_mask=0x%x, append=%u, sc_list) => %u",
3847 SymbolFileDWARF::FindFunctions(const RegularExpression& regex, bool include_inlines, bool append, SymbolContextList& sc_list)
3849 Timer scoped_timer (__PRETTY_FUNCTION__,
3850 "SymbolFileDWARF::FindFunctions (regex = '%s')",
3853 Log *log (LogChannelDWARF::GetLogIfAll(DWARF_LOG_LOOKUPS));
3857 GetObjectFile()->GetModule()->LogMessage (log,
3858 "SymbolFileDWARF::FindFunctions (regex=\"%s\", append=%u, sc_list)",
3864 // If we aren't appending the results to this list, then clear the list
3868 // Remember how many sc_list are in the list before we search in case
3869 // we are appending the results to a variable list.
3870 uint32_t original_size = sc_list.GetSize();
3872 if (m_using_apple_tables)
3874 if (m_apple_names_ap.get())
3875 FindFunctions (regex, *m_apple_names_ap, sc_list);
3879 // Index the DWARF if we haven't already
3883 FindFunctions (regex, m_function_basename_index, sc_list);
3885 FindFunctions (regex, m_function_fullname_index, sc_list);
3888 // Return the number of variable that were appended to the list
3889 return sc_list.GetSize() - original_size;
3893 SymbolFileDWARF::FindTypes (const SymbolContext& sc,
3894 const ConstString &name,
3895 const lldb_private::ClangNamespaceDecl *namespace_decl,
3897 uint32_t max_matches,
3900 DWARFDebugInfo* info = DebugInfo();
3904 Log *log (LogChannelDWARF::GetLogIfAll(DWARF_LOG_LOOKUPS));
3910 GetObjectFile()->GetModule()->LogMessage (log,
3911 "SymbolFileDWARF::FindTypes (sc, name=\"%s\", clang::NamespaceDecl(%p) \"%s\", append=%u, max_matches=%u, type_list)",
3913 namespace_decl->GetNamespaceDecl(),
3914 namespace_decl->GetQualifiedName().c_str(),
3920 GetObjectFile()->GetModule()->LogMessage (log,
3921 "SymbolFileDWARF::FindTypes (sc, name=\"%s\", clang::NamespaceDecl(NULL), append=%u, max_matches=%u, type_list)",
3928 // If we aren't appending the results to this list, then clear the list
3932 if (!NamespaceDeclMatchesThisSymbolFile(namespace_decl))
3935 DIEArray die_offsets;
3937 if (m_using_apple_tables)
3939 if (m_apple_types_ap.get())
3941 const char *name_cstr = name.GetCString();
3942 m_apple_types_ap->FindByName (name_cstr, die_offsets);
3950 m_type_index.Find (name, die_offsets);
3953 const size_t num_die_matches = die_offsets.size();
3955 if (num_die_matches)
3957 const uint32_t initial_types_size = types.GetSize();
3958 DWARFCompileUnit* dwarf_cu = NULL;
3959 const DWARFDebugInfoEntry* die = NULL;
3960 DWARFDebugInfo* debug_info = DebugInfo();
3961 for (size_t i=0; i<num_die_matches; ++i)
3963 const dw_offset_t die_offset = die_offsets[i];
3964 die = debug_info->GetDIEPtrWithCompileUnitHint (die_offset, &dwarf_cu);
3968 if (namespace_decl && !DIEIsInNamespace (namespace_decl, dwarf_cu, die))
3971 Type *matching_type = ResolveType (dwarf_cu, die);
3974 // We found a type pointer, now find the shared pointer form our type list
3975 types.InsertUnique (matching_type->shared_from_this());
3976 if (types.GetSize() >= max_matches)
3982 if (m_using_apple_tables)
3984 GetObjectFile()->GetModule()->ReportErrorIfModifyDetected ("the DWARF debug information has been modified (.apple_types accelerator table had bad die 0x%8.8x for '%s')\n",
3985 die_offset, name.GetCString());
3990 const uint32_t num_matches = types.GetSize() - initial_types_size;
3991 if (log && num_matches)
3995 GetObjectFile()->GetModule()->LogMessage (log,
3996 "SymbolFileDWARF::FindTypes (sc, name=\"%s\", clang::NamespaceDecl(%p) \"%s\", append=%u, max_matches=%u, type_list) => %u",
3998 namespace_decl->GetNamespaceDecl(),
3999 namespace_decl->GetQualifiedName().c_str(),
4006 GetObjectFile()->GetModule()->LogMessage (log,
4007 "SymbolFileDWARF::FindTypes (sc, name=\"%s\", clang::NamespaceDecl(NULL), append=%u, max_matches=%u, type_list) => %u",
4021 SymbolFileDWARF::FindNamespace (const SymbolContext& sc,
4022 const ConstString &name,
4023 const lldb_private::ClangNamespaceDecl *parent_namespace_decl)
4025 Log *log (LogChannelDWARF::GetLogIfAll(DWARF_LOG_LOOKUPS));
4029 GetObjectFile()->GetModule()->LogMessage (log,
4030 "SymbolFileDWARF::FindNamespace (sc, name=\"%s\")",
4034 if (!NamespaceDeclMatchesThisSymbolFile(parent_namespace_decl))
4035 return ClangNamespaceDecl();
4037 ClangNamespaceDecl namespace_decl;
4038 DWARFDebugInfo* info = DebugInfo();
4041 DIEArray die_offsets;
4043 // Index if we already haven't to make sure the compile units
4044 // get indexed and make their global DIE index list
4045 if (m_using_apple_tables)
4047 if (m_apple_namespaces_ap.get())
4049 const char *name_cstr = name.GetCString();
4050 m_apple_namespaces_ap->FindByName (name_cstr, die_offsets);
4058 m_namespace_index.Find (name, die_offsets);
4061 DWARFCompileUnit* dwarf_cu = NULL;
4062 const DWARFDebugInfoEntry* die = NULL;
4063 const size_t num_matches = die_offsets.size();
4066 DWARFDebugInfo* debug_info = DebugInfo();
4067 for (size_t i=0; i<num_matches; ++i)
4069 const dw_offset_t die_offset = die_offsets[i];
4070 die = debug_info->GetDIEPtrWithCompileUnitHint (die_offset, &dwarf_cu);
4074 if (parent_namespace_decl && !DIEIsInNamespace (parent_namespace_decl, dwarf_cu, die))
4077 clang::NamespaceDecl *clang_namespace_decl = ResolveNamespaceDIE (dwarf_cu, die);
4078 if (clang_namespace_decl)
4080 namespace_decl.SetASTContext (GetClangASTContext().getASTContext());
4081 namespace_decl.SetNamespaceDecl (clang_namespace_decl);
4087 if (m_using_apple_tables)
4089 GetObjectFile()->GetModule()->ReportErrorIfModifyDetected ("the DWARF debug information has been modified (.apple_namespaces accelerator table had bad die 0x%8.8x for '%s')\n",
4090 die_offset, name.GetCString());
4097 if (log && namespace_decl.GetNamespaceDecl())
4099 GetObjectFile()->GetModule()->LogMessage (log,
4100 "SymbolFileDWARF::FindNamespace (sc, name=\"%s\") => clang::NamespaceDecl(%p) \"%s\"",
4102 namespace_decl.GetNamespaceDecl(),
4103 namespace_decl.GetQualifiedName().c_str());
4106 return namespace_decl;
4110 SymbolFileDWARF::FindTypes(std::vector<dw_offset_t> die_offsets, uint32_t max_matches, TypeList& types)
4112 // Remember how many sc_list are in the list before we search in case
4113 // we are appending the results to a variable list.
4114 uint32_t original_size = types.GetSize();
4116 const uint32_t num_die_offsets = die_offsets.size();
4117 // Parse all of the types we found from the pubtypes matches
4119 uint32_t num_matches = 0;
4120 for (i = 0; i < num_die_offsets; ++i)
4122 Type *matching_type = ResolveTypeUID (die_offsets[i]);
4125 // We found a type pointer, now find the shared pointer form our type list
4126 types.InsertUnique (matching_type->shared_from_this());
4128 if (num_matches >= max_matches)
4133 // Return the number of variable that were appended to the list
4134 return types.GetSize() - original_size;
4139 SymbolFileDWARF::ParseChildParameters (const SymbolContext& sc,
4140 clang::DeclContext *containing_decl_ctx,
4141 DWARFCompileUnit* dwarf_cu,
4142 const DWARFDebugInfoEntry *parent_die,
4143 bool skip_artificial,
4145 TypeList* type_list,
4146 std::vector<ClangASTType>& function_param_types,
4147 std::vector<clang::ParmVarDecl*>& function_param_decls,
4148 unsigned &type_quals,
4149 ClangASTContext::TemplateParameterInfos &template_param_infos)
4151 if (parent_die == NULL)
4154 const uint8_t *fixed_form_sizes = DWARFFormValue::GetFixedFormSizesForAddressSize (dwarf_cu->GetAddressByteSize());
4157 const DWARFDebugInfoEntry *die;
4158 for (die = parent_die->GetFirstChild(); die != NULL; die = die->GetSibling())
4160 dw_tag_t tag = die->Tag();
4163 case DW_TAG_formal_parameter:
4165 DWARFDebugInfoEntry::Attributes attributes;
4166 const size_t num_attributes = die->GetAttributes(this, dwarf_cu, fixed_form_sizes, attributes);
4167 if (num_attributes > 0)
4169 const char *name = NULL;
4171 dw_offset_t param_type_die_offset = DW_INVALID_OFFSET;
4172 bool is_artificial = false;
4173 // one of None, Auto, Register, Extern, Static, PrivateExtern
4175 clang::StorageClass storage = clang::SC_None;
4177 for (i=0; i<num_attributes; ++i)
4179 const dw_attr_t attr = attributes.AttributeAtIndex(i);
4180 DWARFFormValue form_value;
4181 if (attributes.ExtractFormValueAtIndex(this, i, form_value))
4185 case DW_AT_decl_file: decl.SetFile(sc.comp_unit->GetSupportFiles().GetFileSpecAtIndex(form_value.Unsigned())); break;
4186 case DW_AT_decl_line: decl.SetLine(form_value.Unsigned()); break;
4187 case DW_AT_decl_column: decl.SetColumn(form_value.Unsigned()); break;
4188 case DW_AT_name: name = form_value.AsCString(&get_debug_str_data()); break;
4189 case DW_AT_type: param_type_die_offset = form_value.Reference(dwarf_cu); break;
4190 case DW_AT_artificial: is_artificial = form_value.Boolean(); break;
4191 case DW_AT_location:
4192 // if (form_value.BlockData())
4194 // const DataExtractor& debug_info_data = debug_info();
4195 // uint32_t block_length = form_value.Unsigned();
4196 // DataExtractor location(debug_info_data, form_value.BlockData() - debug_info_data.GetDataStart(), block_length);
4202 case DW_AT_const_value:
4203 case DW_AT_default_value:
4204 case DW_AT_description:
4205 case DW_AT_endianity:
4206 case DW_AT_is_optional:
4208 case DW_AT_variable_parameter:
4210 case DW_AT_abstract_origin:
4218 if (skip_artificial)
4222 // In order to determine if a C++ member function is
4223 // "const" we have to look at the const-ness of "this"...
4227 if (DeclKindIsCXXClass(containing_decl_ctx->getDeclKind()))
4229 // Often times compilers omit the "this" name for the
4230 // specification DIEs, so we can't rely upon the name
4231 // being in the formal parameter DIE...
4232 if (name == NULL || ::strcmp(name, "this")==0)
4234 Type *this_type = ResolveTypeUID (param_type_die_offset);
4237 uint32_t encoding_mask = this_type->GetEncodingMask();
4238 if (encoding_mask & Type::eEncodingIsPointerUID)
4242 if (encoding_mask & (1u << Type::eEncodingIsConstUID))
4243 type_quals |= clang::Qualifiers::Const;
4244 if (encoding_mask & (1u << Type::eEncodingIsVolatileUID))
4245 type_quals |= clang::Qualifiers::Volatile;
4256 // HACK: Objective C formal parameters "self" and "_cmd"
4257 // are not marked as artificial in the DWARF...
4258 CompileUnit *comp_unit = GetCompUnitForDWARFCompUnit(dwarf_cu, UINT32_MAX);
4261 switch (comp_unit->GetLanguage())
4263 case eLanguageTypeObjC:
4264 case eLanguageTypeObjC_plus_plus:
4265 if (name && name[0] && (strcmp (name, "self") == 0 || strcmp (name, "_cmd") == 0))
4277 Type *type = ResolveTypeUID(param_type_die_offset);
4280 function_param_types.push_back (type->GetClangForwardType());
4282 clang::ParmVarDecl *param_var_decl = GetClangASTContext().CreateParameterDeclaration (name,
4283 type->GetClangForwardType(),
4285 assert(param_var_decl);
4286 function_param_decls.push_back(param_var_decl);
4288 GetClangASTContext().SetMetadataAsUserID (param_var_decl, MakeUserID(die->GetOffset()));
4296 case DW_TAG_template_type_parameter:
4297 case DW_TAG_template_value_parameter:
4298 ParseTemplateDIE (dwarf_cu, die,template_param_infos);
4309 SymbolFileDWARF::ParseChildEnumerators
4311 const SymbolContext& sc,
4312 lldb_private::ClangASTType &clang_type,
4314 uint32_t enumerator_byte_size,
4315 DWARFCompileUnit* dwarf_cu,
4316 const DWARFDebugInfoEntry *parent_die
4319 if (parent_die == NULL)
4322 size_t enumerators_added = 0;
4323 const DWARFDebugInfoEntry *die;
4324 const uint8_t *fixed_form_sizes = DWARFFormValue::GetFixedFormSizesForAddressSize (dwarf_cu->GetAddressByteSize());
4326 for (die = parent_die->GetFirstChild(); die != NULL; die = die->GetSibling())
4328 const dw_tag_t tag = die->Tag();
4329 if (tag == DW_TAG_enumerator)
4331 DWARFDebugInfoEntry::Attributes attributes;
4332 const size_t num_child_attributes = die->GetAttributes(this, dwarf_cu, fixed_form_sizes, attributes);
4333 if (num_child_attributes > 0)
4335 const char *name = NULL;
4336 bool got_value = false;
4337 int64_t enum_value = 0;
4341 for (i=0; i<num_child_attributes; ++i)
4343 const dw_attr_t attr = attributes.AttributeAtIndex(i);
4344 DWARFFormValue form_value;
4345 if (attributes.ExtractFormValueAtIndex(this, i, form_value))
4349 case DW_AT_const_value:
4352 enum_value = form_value.Signed();
4354 enum_value = form_value.Unsigned();
4358 name = form_value.AsCString(&get_debug_str_data());
4361 case DW_AT_description:
4363 case DW_AT_decl_file: decl.SetFile(sc.comp_unit->GetSupportFiles().GetFileSpecAtIndex(form_value.Unsigned())); break;
4364 case DW_AT_decl_line: decl.SetLine(form_value.Unsigned()); break;
4365 case DW_AT_decl_column: decl.SetColumn(form_value.Unsigned()); break;
4372 if (name && name[0] && got_value)
4374 clang_type.AddEnumerationValueToEnumerationType (clang_type.GetEnumerationIntegerType(),
4378 enumerator_byte_size * 8);
4379 ++enumerators_added;
4384 return enumerators_added;
4388 SymbolFileDWARF::ParseChildArrayInfo
4390 const SymbolContext& sc,
4391 DWARFCompileUnit* dwarf_cu,
4392 const DWARFDebugInfoEntry *parent_die,
4393 int64_t& first_index,
4394 std::vector<uint64_t>& element_orders,
4395 uint32_t& byte_stride,
4396 uint32_t& bit_stride
4399 if (parent_die == NULL)
4402 const DWARFDebugInfoEntry *die;
4403 const uint8_t *fixed_form_sizes = DWARFFormValue::GetFixedFormSizesForAddressSize (dwarf_cu->GetAddressByteSize());
4404 for (die = parent_die->GetFirstChild(); die != NULL; die = die->GetSibling())
4406 const dw_tag_t tag = die->Tag();
4409 case DW_TAG_subrange_type:
4411 DWARFDebugInfoEntry::Attributes attributes;
4412 const size_t num_child_attributes = die->GetAttributes(this, dwarf_cu, fixed_form_sizes, attributes);
4413 if (num_child_attributes > 0)
4415 uint64_t num_elements = 0;
4416 uint64_t lower_bound = 0;
4417 uint64_t upper_bound = 0;
4418 bool upper_bound_valid = false;
4420 for (i=0; i<num_child_attributes; ++i)
4422 const dw_attr_t attr = attributes.AttributeAtIndex(i);
4423 DWARFFormValue form_value;
4424 if (attributes.ExtractFormValueAtIndex(this, i, form_value))
4432 num_elements = form_value.Unsigned();
4435 case DW_AT_bit_stride:
4436 bit_stride = form_value.Unsigned();
4439 case DW_AT_byte_stride:
4440 byte_stride = form_value.Unsigned();
4443 case DW_AT_lower_bound:
4444 lower_bound = form_value.Unsigned();
4447 case DW_AT_upper_bound:
4448 upper_bound_valid = true;
4449 upper_bound = form_value.Unsigned();
4453 case DW_AT_abstract_origin:
4454 case DW_AT_accessibility:
4455 case DW_AT_allocated:
4456 case DW_AT_associated:
4457 case DW_AT_data_location:
4458 case DW_AT_declaration:
4459 case DW_AT_description:
4461 case DW_AT_threads_scaled:
4463 case DW_AT_visibility:
4469 if (num_elements == 0)
4471 if (upper_bound_valid && upper_bound >= lower_bound)
4472 num_elements = upper_bound - lower_bound + 1;
4475 element_orders.push_back (num_elements);
4484 SymbolFileDWARF::GetTypeForDIE (DWARFCompileUnit *dwarf_cu, const DWARFDebugInfoEntry* die)
4489 assert(dwarf_cu != NULL);
4490 Type *type_ptr = m_die_to_type.lookup (die);
4491 if (type_ptr == NULL)
4493 CompileUnit* lldb_cu = GetCompUnitForDWARFCompUnit(dwarf_cu);
4495 SymbolContext sc(lldb_cu);
4496 type_sp = ParseType(sc, dwarf_cu, die, NULL);
4498 else if (type_ptr != DIE_IS_BEING_PARSED)
4500 // Grab the existing type from the master types lists
4501 type_sp = type_ptr->shared_from_this();
4508 clang::DeclContext *
4509 SymbolFileDWARF::GetClangDeclContextContainingDIEOffset (dw_offset_t die_offset)
4511 if (die_offset != DW_INVALID_OFFSET)
4513 DWARFCompileUnitSP cu_sp;
4514 const DWARFDebugInfoEntry* die = DebugInfo()->GetDIEPtr(die_offset, &cu_sp);
4515 return GetClangDeclContextContainingDIE (cu_sp.get(), die, NULL);
4520 clang::DeclContext *
4521 SymbolFileDWARF::GetClangDeclContextForDIEOffset (const SymbolContext &sc, dw_offset_t die_offset)
4523 if (die_offset != DW_INVALID_OFFSET)
4525 DWARFDebugInfo* debug_info = DebugInfo();
4528 DWARFCompileUnitSP cu_sp;
4529 const DWARFDebugInfoEntry* die = debug_info->GetDIEPtr(die_offset, &cu_sp);
4531 return GetClangDeclContextForDIE (sc, cu_sp.get(), die);
4537 clang::NamespaceDecl *
4538 SymbolFileDWARF::ResolveNamespaceDIE (DWARFCompileUnit *dwarf_cu, const DWARFDebugInfoEntry *die)
4540 if (die && die->Tag() == DW_TAG_namespace)
4542 // See if we already parsed this namespace DIE and associated it with a
4543 // uniqued namespace declaration
4544 clang::NamespaceDecl *namespace_decl = static_cast<clang::NamespaceDecl *>(m_die_to_decl_ctx[die]);
4546 return namespace_decl;
4549 const char *namespace_name = die->GetAttributeValueAsString(this, dwarf_cu, DW_AT_name, NULL);
4550 clang::DeclContext *containing_decl_ctx = GetClangDeclContextContainingDIE (dwarf_cu, die, NULL);
4551 namespace_decl = GetClangASTContext().GetUniqueNamespaceDeclaration (namespace_name, containing_decl_ctx);
4552 Log *log (LogChannelDWARF::GetLogIfAll(DWARF_LOG_DEBUG_INFO));
4557 GetObjectFile()->GetModule()->LogMessage (log,
4558 "ASTContext => %p: 0x%8.8" PRIx64 ": DW_TAG_namespace with DW_AT_name(\"%s\") => clang::NamespaceDecl *%p (original = %p)",
4559 GetClangASTContext().getASTContext(),
4560 MakeUserID(die->GetOffset()),
4563 namespace_decl->getOriginalNamespace());
4567 GetObjectFile()->GetModule()->LogMessage (log,
4568 "ASTContext => %p: 0x%8.8" PRIx64 ": DW_TAG_namespace (anonymous) => clang::NamespaceDecl *%p (original = %p)",
4569 GetClangASTContext().getASTContext(),
4570 MakeUserID(die->GetOffset()),
4572 namespace_decl->getOriginalNamespace());
4577 LinkDeclContextToDIE((clang::DeclContext*)namespace_decl, die);
4578 return namespace_decl;
4584 clang::DeclContext *
4585 SymbolFileDWARF::GetClangDeclContextForDIE (const SymbolContext &sc, DWARFCompileUnit *cu, const DWARFDebugInfoEntry *die)
4587 clang::DeclContext *clang_decl_ctx = GetCachedClangDeclContextForDIE (die);
4589 return clang_decl_ctx;
4590 // If this DIE has a specification, or an abstract origin, then trace to those.
4592 dw_offset_t die_offset = die->GetAttributeValueAsReference(this, cu, DW_AT_specification, DW_INVALID_OFFSET);
4593 if (die_offset != DW_INVALID_OFFSET)
4594 return GetClangDeclContextForDIEOffset (sc, die_offset);
4596 die_offset = die->GetAttributeValueAsReference(this, cu, DW_AT_abstract_origin, DW_INVALID_OFFSET);
4597 if (die_offset != DW_INVALID_OFFSET)
4598 return GetClangDeclContextForDIEOffset (sc, die_offset);
4600 Log *log (LogChannelDWARF::GetLogIfAll(DWARF_LOG_DEBUG_INFO));
4602 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));
4603 // This is the DIE we want. Parse it, then query our map.
4604 bool assert_not_being_parsed = true;
4605 ResolveTypeUID (cu, die, assert_not_being_parsed);
4607 clang_decl_ctx = GetCachedClangDeclContextForDIE (die);
4609 return clang_decl_ctx;
4612 clang::DeclContext *
4613 SymbolFileDWARF::GetClangDeclContextContainingDIE (DWARFCompileUnit *cu, const DWARFDebugInfoEntry *die, const DWARFDebugInfoEntry **decl_ctx_die_copy)
4615 if (m_clang_tu_decl == NULL)
4616 m_clang_tu_decl = GetClangASTContext().getASTContext()->getTranslationUnitDecl();
4618 const DWARFDebugInfoEntry *decl_ctx_die = GetDeclContextDIEContainingDIE (cu, die);
4620 if (decl_ctx_die_copy)
4621 *decl_ctx_die_copy = decl_ctx_die;
4626 DIEToDeclContextMap::iterator pos = m_die_to_decl_ctx.find (decl_ctx_die);
4627 if (pos != m_die_to_decl_ctx.end())
4630 switch (decl_ctx_die->Tag())
4632 case DW_TAG_compile_unit:
4633 return m_clang_tu_decl;
4635 case DW_TAG_namespace:
4636 return ResolveNamespaceDIE (cu, decl_ctx_die);
4639 case DW_TAG_structure_type:
4640 case DW_TAG_union_type:
4641 case DW_TAG_class_type:
4643 Type* type = ResolveType (cu, decl_ctx_die);
4646 clang::DeclContext *decl_ctx = type->GetClangForwardType().GetDeclContextForType ();
4649 LinkDeclContextToDIE (decl_ctx, decl_ctx_die);
4661 return m_clang_tu_decl;
4665 const DWARFDebugInfoEntry *
4666 SymbolFileDWARF::GetDeclContextDIEContainingDIE (DWARFCompileUnit *cu, const DWARFDebugInfoEntry *die)
4670 const DWARFDebugInfoEntry * const decl_die = die;
4674 // If this is the original DIE that we are searching for a declaration
4675 // for, then don't look in the cache as we don't want our own decl
4676 // context to be our decl context...
4677 if (decl_die != die)
4681 case DW_TAG_compile_unit:
4682 case DW_TAG_namespace:
4683 case DW_TAG_structure_type:
4684 case DW_TAG_union_type:
4685 case DW_TAG_class_type:
4693 dw_offset_t die_offset = die->GetAttributeValueAsReference(this, cu, DW_AT_specification, DW_INVALID_OFFSET);
4694 if (die_offset != DW_INVALID_OFFSET)
4696 DWARFCompileUnit *spec_cu = cu;
4697 const DWARFDebugInfoEntry *spec_die = DebugInfo()->GetDIEPtrWithCompileUnitHint (die_offset, &spec_cu);
4698 const DWARFDebugInfoEntry *spec_die_decl_ctx_die = GetDeclContextDIEContainingDIE (spec_cu, spec_die);
4699 if (spec_die_decl_ctx_die)
4700 return spec_die_decl_ctx_die;
4703 die_offset = die->GetAttributeValueAsReference(this, cu, DW_AT_abstract_origin, DW_INVALID_OFFSET);
4704 if (die_offset != DW_INVALID_OFFSET)
4706 DWARFCompileUnit *abs_cu = cu;
4707 const DWARFDebugInfoEntry *abs_die = DebugInfo()->GetDIEPtrWithCompileUnitHint (die_offset, &abs_cu);
4708 const DWARFDebugInfoEntry *abs_die_decl_ctx_die = GetDeclContextDIEContainingDIE (abs_cu, abs_die);
4709 if (abs_die_decl_ctx_die)
4710 return abs_die_decl_ctx_die;
4713 die = die->GetParent();
4721 SymbolFileDWARF::GetObjCClassSymbol (const ConstString &objc_class_name)
4723 Symbol *objc_class_symbol = NULL;
4726 Symtab *symtab = m_obj_file->GetSymtab ();
4729 objc_class_symbol = symtab->FindFirstSymbolWithNameAndType (objc_class_name,
4730 eSymbolTypeObjCClass,
4732 Symtab::eVisibilityAny);
4735 return objc_class_symbol;
4738 // Some compilers don't emit the DW_AT_APPLE_objc_complete_type attribute. If they don't
4739 // then we can end up looking through all class types for a complete type and never find
4740 // the full definition. We need to know if this attribute is supported, so we determine
4741 // this here and cache th result. We also need to worry about the debug map DWARF file
4742 // if we are doing darwin DWARF in .o file debugging.
4744 SymbolFileDWARF::Supports_DW_AT_APPLE_objc_complete_type (DWARFCompileUnit *cu)
4746 if (m_supports_DW_AT_APPLE_objc_complete_type == eLazyBoolCalculate)
4748 m_supports_DW_AT_APPLE_objc_complete_type = eLazyBoolNo;
4749 if (cu && cu->Supports_DW_AT_APPLE_objc_complete_type())
4750 m_supports_DW_AT_APPLE_objc_complete_type = eLazyBoolYes;
4753 DWARFDebugInfo* debug_info = DebugInfo();
4754 const uint32_t num_compile_units = GetNumCompileUnits();
4755 for (uint32_t cu_idx = 0; cu_idx < num_compile_units; ++cu_idx)
4757 DWARFCompileUnit* dwarf_cu = debug_info->GetCompileUnitAtIndex(cu_idx);
4758 if (dwarf_cu != cu && dwarf_cu->Supports_DW_AT_APPLE_objc_complete_type())
4760 m_supports_DW_AT_APPLE_objc_complete_type = eLazyBoolYes;
4765 if (m_supports_DW_AT_APPLE_objc_complete_type == eLazyBoolNo && GetDebugMapSymfile ())
4766 return m_debug_map_symfile->Supports_DW_AT_APPLE_objc_complete_type (this);
4768 return m_supports_DW_AT_APPLE_objc_complete_type == eLazyBoolYes;
4771 // This function can be used when a DIE is found that is a forward declaration
4772 // DIE and we want to try and find a type that has the complete definition.
4774 SymbolFileDWARF::FindCompleteObjCDefinitionTypeForDIE (const DWARFDebugInfoEntry *die,
4775 const ConstString &type_name,
4776 bool must_be_implementation)
4781 if (!type_name || (must_be_implementation && !GetObjCClassSymbol (type_name)))
4784 DIEArray die_offsets;
4786 if (m_using_apple_tables)
4788 if (m_apple_types_ap.get())
4790 const char *name_cstr = type_name.GetCString();
4791 m_apple_types_ap->FindCompleteObjCClassByName (name_cstr, die_offsets, must_be_implementation);
4799 m_type_index.Find (type_name, die_offsets);
4802 const size_t num_matches = die_offsets.size();
4804 DWARFCompileUnit* type_cu = NULL;
4805 const DWARFDebugInfoEntry* type_die = NULL;
4808 DWARFDebugInfo* debug_info = DebugInfo();
4809 for (size_t i=0; i<num_matches; ++i)
4811 const dw_offset_t die_offset = die_offsets[i];
4812 type_die = debug_info->GetDIEPtrWithCompileUnitHint (die_offset, &type_cu);
4816 bool try_resolving_type = false;
4818 // Don't try and resolve the DIE we are looking for with the DIE itself!
4819 if (type_die != die)
4821 switch (type_die->Tag())
4823 case DW_TAG_class_type:
4824 case DW_TAG_structure_type:
4825 try_resolving_type = true;
4832 if (try_resolving_type)
4834 if (must_be_implementation && type_cu->Supports_DW_AT_APPLE_objc_complete_type())
4835 try_resolving_type = type_die->GetAttributeValueAsUnsigned (this, type_cu, DW_AT_APPLE_objc_complete_type, 0);
4837 if (try_resolving_type)
4839 Type *resolved_type = ResolveType (type_cu, type_die, false);
4840 if (resolved_type && resolved_type != DIE_IS_BEING_PARSED)
4842 DEBUG_PRINTF ("resolved 0x%8.8" PRIx64 " (cu 0x%8.8" PRIx64 ") from %s to 0x%8.8" PRIx64 " (cu 0x%8.8" PRIx64 ")\n",
4843 MakeUserID(die->GetOffset()),
4844 MakeUserID(dwarf_cu->GetOffset()),
4845 m_obj_file->GetFileSpec().GetFilename().AsCString(),
4846 MakeUserID(type_die->GetOffset()),
4847 MakeUserID(type_cu->GetOffset()));
4850 m_die_to_type[die] = resolved_type;
4851 type_sp = resolved_type->shared_from_this();
4859 if (m_using_apple_tables)
4861 GetObjectFile()->GetModule()->ReportErrorIfModifyDetected ("the DWARF debug information has been modified (.apple_types accelerator table had bad die 0x%8.8x for '%s')\n",
4862 die_offset, type_name.GetCString());
4872 //----------------------------------------------------------------------
4873 // This function helps to ensure that the declaration contexts match for
4874 // two different DIEs. Often times debug information will refer to a
4875 // forward declaration of a type (the equivalent of "struct my_struct;".
4876 // There will often be a declaration of that type elsewhere that has the
4877 // full definition. When we go looking for the full type "my_struct", we
4878 // will find one or more matches in the accelerator tables and we will
4879 // then need to make sure the type was in the same declaration context
4880 // as the original DIE. This function can efficiently compare two DIEs
4881 // and will return true when the declaration context matches, and false
4883 //----------------------------------------------------------------------
4885 SymbolFileDWARF::DIEDeclContextsMatch (DWARFCompileUnit* cu1, const DWARFDebugInfoEntry *die1,
4886 DWARFCompileUnit* cu2, const DWARFDebugInfoEntry *die2)
4891 #if defined (LLDB_CONFIGURATION_DEBUG)
4892 // You can't and shouldn't call this function with a compile unit from
4893 // two different SymbolFileDWARF instances.
4894 assert (DebugInfo()->ContainsCompileUnit (cu1));
4895 assert (DebugInfo()->ContainsCompileUnit (cu2));
4898 DWARFDIECollection decl_ctx_1;
4899 DWARFDIECollection decl_ctx_2;
4900 //The declaration DIE stack is a stack of the declaration context
4901 // DIEs all the way back to the compile unit. If a type "T" is
4902 // declared inside a class "B", and class "B" is declared inside
4903 // a class "A" and class "A" is in a namespace "lldb", and the
4904 // namespace is in a compile unit, there will be a stack of DIEs:
4906 // [0] DW_TAG_class_type for "B"
4907 // [1] DW_TAG_class_type for "A"
4908 // [2] DW_TAG_namespace for "lldb"
4909 // [3] DW_TAG_compile_unit for the source file.
4911 // We grab both contexts and make sure that everything matches
4912 // all the way back to the compiler unit.
4914 // First lets grab the decl contexts for both DIEs
4915 die1->GetDeclContextDIEs (this, cu1, decl_ctx_1);
4916 die2->GetDeclContextDIEs (this, cu2, decl_ctx_2);
4917 // Make sure the context arrays have the same size, otherwise
4919 const size_t count1 = decl_ctx_1.Size();
4920 const size_t count2 = decl_ctx_2.Size();
4921 if (count1 != count2)
4924 // Make sure the DW_TAG values match all the way back up the the
4925 // compile unit. If they don't, then we are done.
4926 const DWARFDebugInfoEntry *decl_ctx_die1;
4927 const DWARFDebugInfoEntry *decl_ctx_die2;
4929 for (i=0; i<count1; i++)
4931 decl_ctx_die1 = decl_ctx_1.GetDIEPtrAtIndex (i);
4932 decl_ctx_die2 = decl_ctx_2.GetDIEPtrAtIndex (i);
4933 if (decl_ctx_die1->Tag() != decl_ctx_die2->Tag())
4936 #if defined LLDB_CONFIGURATION_DEBUG
4938 // Make sure the top item in the decl context die array is always
4939 // DW_TAG_compile_unit. If it isn't then something went wrong in
4940 // the DWARFDebugInfoEntry::GetDeclContextDIEs() function...
4941 assert (decl_ctx_1.GetDIEPtrAtIndex (count1 - 1)->Tag() == DW_TAG_compile_unit);
4944 // Always skip the compile unit when comparing by only iterating up to
4945 // "count - 1". Here we compare the names as we go.
4946 for (i=0; i<count1 - 1; i++)
4948 decl_ctx_die1 = decl_ctx_1.GetDIEPtrAtIndex (i);
4949 decl_ctx_die2 = decl_ctx_2.GetDIEPtrAtIndex (i);
4950 const char *name1 = decl_ctx_die1->GetName(this, cu1);
4951 const char *name2 = decl_ctx_die2->GetName(this, cu2);
4952 // If the string was from a DW_FORM_strp, then the pointer will often
4957 // Name pointers are not equal, so only compare the strings
4958 // if both are not NULL.
4961 // If the strings don't compare, we are done...
4962 if (strcmp(name1, name2) != 0)
4967 // One name was NULL while the other wasn't
4971 // We made it through all of the checks and the declaration contexts
4976 // This function can be used when a DIE is found that is a forward declaration
4977 // DIE and we want to try and find a type that has the complete definition.
4978 // "cu" and "die" must be from this SymbolFileDWARF
4980 SymbolFileDWARF::FindDefinitionTypeForDIE (DWARFCompileUnit* cu,
4981 const DWARFDebugInfoEntry *die,
4982 const ConstString &type_name)
4986 #if defined (LLDB_CONFIGURATION_DEBUG)
4987 // You can't and shouldn't call this function with a compile unit from
4988 // another SymbolFileDWARF instance.
4989 assert (DebugInfo()->ContainsCompileUnit (cu));
4992 if (cu == NULL || die == NULL || !type_name)
4995 std::string qualified_name;
4997 Log *log (LogChannelDWARF::GetLogIfAny(DWARF_LOG_TYPE_COMPLETION|DWARF_LOG_LOOKUPS));
5000 die->GetQualifiedName(this, cu, qualified_name);
5001 GetObjectFile()->GetModule()->LogMessage (log,
5002 "SymbolFileDWARF::FindDefinitionTypeForDIE(die=0x%8.8x (%s), name='%s')",
5004 qualified_name.c_str(),
5005 type_name.GetCString());
5008 DIEArray die_offsets;
5010 if (m_using_apple_tables)
5012 if (m_apple_types_ap.get())
5014 const bool has_tag = m_apple_types_ap->GetHeader().header_data.ContainsAtom (DWARFMappedHash::eAtomTypeTag);
5015 const bool has_qualified_name_hash = m_apple_types_ap->GetHeader().header_data.ContainsAtom (DWARFMappedHash::eAtomTypeQualNameHash);
5016 if (has_tag && has_qualified_name_hash)
5018 if (qualified_name.empty())
5019 die->GetQualifiedName(this, cu, qualified_name);
5021 const uint32_t qualified_name_hash = MappedHash::HashStringUsingDJB (qualified_name.c_str());
5023 GetObjectFile()->GetModule()->LogMessage (log,"FindByNameAndTagAndQualifiedNameHash()");
5024 m_apple_types_ap->FindByNameAndTagAndQualifiedNameHash (type_name.GetCString(), die->Tag(), qualified_name_hash, die_offsets);
5026 else if (has_tag > 1)
5029 GetObjectFile()->GetModule()->LogMessage (log,"FindByNameAndTag()");
5030 m_apple_types_ap->FindByNameAndTag (type_name.GetCString(), die->Tag(), die_offsets);
5034 m_apple_types_ap->FindByName (type_name.GetCString(), die_offsets);
5043 m_type_index.Find (type_name, die_offsets);
5046 const size_t num_matches = die_offsets.size();
5048 const dw_tag_t die_tag = die->Tag();
5050 DWARFCompileUnit* type_cu = NULL;
5051 const DWARFDebugInfoEntry* type_die = NULL;
5054 DWARFDebugInfo* debug_info = DebugInfo();
5055 for (size_t i=0; i<num_matches; ++i)
5057 const dw_offset_t die_offset = die_offsets[i];
5058 type_die = debug_info->GetDIEPtrWithCompileUnitHint (die_offset, &type_cu);
5062 bool try_resolving_type = false;
5064 // Don't try and resolve the DIE we are looking for with the DIE itself!
5065 if (type_die != die)
5067 const dw_tag_t type_die_tag = type_die->Tag();
5068 // Make sure the tags match
5069 if (type_die_tag == die_tag)
5071 // The tags match, lets try resolving this type
5072 try_resolving_type = true;
5076 // The tags don't match, but we need to watch our for a
5077 // forward declaration for a struct and ("struct foo")
5078 // ends up being a class ("class foo { ... };") or
5080 switch (type_die_tag)
5082 case DW_TAG_class_type:
5083 // We had a "class foo", see if we ended up with a "struct foo { ... };"
5084 try_resolving_type = (die_tag == DW_TAG_structure_type);
5086 case DW_TAG_structure_type:
5087 // We had a "struct foo", see if we ended up with a "class foo { ... };"
5088 try_resolving_type = (die_tag == DW_TAG_class_type);
5091 // Tags don't match, don't event try to resolve
5092 // using this type whose name matches....
5098 if (try_resolving_type)
5102 std::string qualified_name;
5103 type_die->GetQualifiedName(this, cu, qualified_name);
5104 GetObjectFile()->GetModule()->LogMessage (log,
5105 "SymbolFileDWARF::FindDefinitionTypeForDIE(die=0x%8.8x, name='%s') trying die=0x%8.8x (%s)",
5107 type_name.GetCString(),
5108 type_die->GetOffset(),
5109 qualified_name.c_str());
5112 // Make sure the decl contexts match all the way up
5113 if (DIEDeclContextsMatch(cu, die, type_cu, type_die))
5115 Type *resolved_type = ResolveType (type_cu, type_die, false);
5116 if (resolved_type && resolved_type != DIE_IS_BEING_PARSED)
5118 DEBUG_PRINTF ("resolved 0x%8.8" PRIx64 " (cu 0x%8.8" PRIx64 ") from %s to 0x%8.8" PRIx64 " (cu 0x%8.8" PRIx64 ")\n",
5119 MakeUserID(die->GetOffset()),
5120 MakeUserID(dwarf_cu->GetOffset()),
5121 m_obj_file->GetFileSpec().GetFilename().AsCString(),
5122 MakeUserID(type_die->GetOffset()),
5123 MakeUserID(type_cu->GetOffset()));
5125 m_die_to_type[die] = resolved_type;
5126 type_sp = resolved_type->shared_from_this();
5135 std::string qualified_name;
5136 type_die->GetQualifiedName(this, cu, qualified_name);
5137 GetObjectFile()->GetModule()->LogMessage (log,
5138 "SymbolFileDWARF::FindDefinitionTypeForDIE(die=0x%8.8x, name='%s') ignoring die=0x%8.8x (%s)",
5140 type_name.GetCString(),
5141 type_die->GetOffset(),
5142 qualified_name.c_str());
5148 if (m_using_apple_tables)
5150 GetObjectFile()->GetModule()->ReportErrorIfModifyDetected ("the DWARF debug information has been modified (.apple_types accelerator table had bad die 0x%8.8x for '%s')\n",
5151 die_offset, type_name.GetCString());
5161 SymbolFileDWARF::FindDefinitionTypeForDWARFDeclContext (const DWARFDeclContext &dwarf_decl_ctx)
5165 const uint32_t dwarf_decl_ctx_count = dwarf_decl_ctx.GetSize();
5166 if (dwarf_decl_ctx_count > 0)
5168 const ConstString type_name(dwarf_decl_ctx[0].name);
5169 const dw_tag_t tag = dwarf_decl_ctx[0].tag;
5173 Log *log (LogChannelDWARF::GetLogIfAny(DWARF_LOG_TYPE_COMPLETION|DWARF_LOG_LOOKUPS));
5176 GetObjectFile()->GetModule()->LogMessage (log,
5177 "SymbolFileDWARF::FindDefinitionTypeForDWARFDeclContext(tag=%s, qualified-name='%s')",
5178 DW_TAG_value_to_name(dwarf_decl_ctx[0].tag),
5179 dwarf_decl_ctx.GetQualifiedName());
5182 DIEArray die_offsets;
5184 if (m_using_apple_tables)
5186 if (m_apple_types_ap.get())
5188 const bool has_tag = m_apple_types_ap->GetHeader().header_data.ContainsAtom (DWARFMappedHash::eAtomTypeTag);
5189 const bool has_qualified_name_hash = m_apple_types_ap->GetHeader().header_data.ContainsAtom (DWARFMappedHash::eAtomTypeQualNameHash);
5190 if (has_tag && has_qualified_name_hash)
5192 const char *qualified_name = dwarf_decl_ctx.GetQualifiedName();
5193 const uint32_t qualified_name_hash = MappedHash::HashStringUsingDJB (qualified_name);
5195 GetObjectFile()->GetModule()->LogMessage (log,"FindByNameAndTagAndQualifiedNameHash()");
5196 m_apple_types_ap->FindByNameAndTagAndQualifiedNameHash (type_name.GetCString(), tag, qualified_name_hash, die_offsets);
5201 GetObjectFile()->GetModule()->LogMessage (log,"FindByNameAndTag()");
5202 m_apple_types_ap->FindByNameAndTag (type_name.GetCString(), tag, die_offsets);
5206 m_apple_types_ap->FindByName (type_name.GetCString(), die_offsets);
5215 m_type_index.Find (type_name, die_offsets);
5218 const size_t num_matches = die_offsets.size();
5221 DWARFCompileUnit* type_cu = NULL;
5222 const DWARFDebugInfoEntry* type_die = NULL;
5225 DWARFDebugInfo* debug_info = DebugInfo();
5226 for (size_t i=0; i<num_matches; ++i)
5228 const dw_offset_t die_offset = die_offsets[i];
5229 type_die = debug_info->GetDIEPtrWithCompileUnitHint (die_offset, &type_cu);
5233 bool try_resolving_type = false;
5235 // Don't try and resolve the DIE we are looking for with the DIE itself!
5236 const dw_tag_t type_tag = type_die->Tag();
5237 // Make sure the tags match
5238 if (type_tag == tag)
5240 // The tags match, lets try resolving this type
5241 try_resolving_type = true;
5245 // The tags don't match, but we need to watch our for a
5246 // forward declaration for a struct and ("struct foo")
5247 // ends up being a class ("class foo { ... };") or
5251 case DW_TAG_class_type:
5252 // We had a "class foo", see if we ended up with a "struct foo { ... };"
5253 try_resolving_type = (tag == DW_TAG_structure_type);
5255 case DW_TAG_structure_type:
5256 // We had a "struct foo", see if we ended up with a "class foo { ... };"
5257 try_resolving_type = (tag == DW_TAG_class_type);
5260 // Tags don't match, don't event try to resolve
5261 // using this type whose name matches....
5266 if (try_resolving_type)
5268 DWARFDeclContext type_dwarf_decl_ctx;
5269 type_die->GetDWARFDeclContext (this, type_cu, type_dwarf_decl_ctx);
5273 GetObjectFile()->GetModule()->LogMessage (log,
5274 "SymbolFileDWARF::FindDefinitionTypeForDWARFDeclContext(tag=%s, qualified-name='%s') trying die=0x%8.8x (%s)",
5275 DW_TAG_value_to_name(dwarf_decl_ctx[0].tag),
5276 dwarf_decl_ctx.GetQualifiedName(),
5277 type_die->GetOffset(),
5278 type_dwarf_decl_ctx.GetQualifiedName());
5281 // Make sure the decl contexts match all the way up
5282 if (dwarf_decl_ctx == type_dwarf_decl_ctx)
5284 Type *resolved_type = ResolveType (type_cu, type_die, false);
5285 if (resolved_type && resolved_type != DIE_IS_BEING_PARSED)
5287 type_sp = resolved_type->shared_from_this();
5296 std::string qualified_name;
5297 type_die->GetQualifiedName(this, type_cu, qualified_name);
5298 GetObjectFile()->GetModule()->LogMessage (log,
5299 "SymbolFileDWARF::FindDefinitionTypeForDWARFDeclContext(tag=%s, qualified-name='%s') ignoring die=0x%8.8x (%s)",
5300 DW_TAG_value_to_name(dwarf_decl_ctx[0].tag),
5301 dwarf_decl_ctx.GetQualifiedName(),
5302 type_die->GetOffset(),
5303 qualified_name.c_str());
5309 if (m_using_apple_tables)
5311 GetObjectFile()->GetModule()->ReportErrorIfModifyDetected ("the DWARF debug information has been modified (.apple_types accelerator table had bad die 0x%8.8x for '%s')\n",
5312 die_offset, type_name.GetCString());
5324 SymbolFileDWARF::CopyUniqueClassMethodTypes (SymbolFileDWARF *src_symfile,
5326 DWARFCompileUnit* src_cu,
5327 const DWARFDebugInfoEntry *src_class_die,
5328 DWARFCompileUnit* dst_cu,
5329 const DWARFDebugInfoEntry *dst_class_die,
5330 llvm::SmallVectorImpl <const DWARFDebugInfoEntry *> &failures)
5332 if (!class_type || !src_cu || !src_class_die || !dst_cu || !dst_class_die)
5334 if (src_class_die->Tag() != dst_class_die->Tag())
5337 // We need to complete the class type so we can get all of the method types
5338 // parsed so we can then unique those types to their equivalent counterparts
5339 // in "dst_cu" and "dst_class_die"
5340 class_type->GetClangFullType();
5342 const DWARFDebugInfoEntry *src_die;
5343 const DWARFDebugInfoEntry *dst_die;
5344 UniqueCStringMap<const DWARFDebugInfoEntry *> src_name_to_die;
5345 UniqueCStringMap<const DWARFDebugInfoEntry *> dst_name_to_die;
5346 UniqueCStringMap<const DWARFDebugInfoEntry *> src_name_to_die_artificial;
5347 UniqueCStringMap<const DWARFDebugInfoEntry *> dst_name_to_die_artificial;
5348 for (src_die = src_class_die->GetFirstChild(); src_die != NULL; src_die = src_die->GetSibling())
5350 if (src_die->Tag() == DW_TAG_subprogram)
5352 // Make sure this is a declaration and not a concrete instance by looking
5353 // for DW_AT_declaration set to 1. Sometimes concrete function instances
5354 // are placed inside the class definitions and shouldn't be included in
5355 // the list of things are are tracking here.
5356 if (src_die->GetAttributeValueAsUnsigned(src_symfile, src_cu, DW_AT_declaration, 0) == 1)
5358 const char *src_name = src_die->GetMangledName (src_symfile, src_cu);
5361 ConstString src_const_name(src_name);
5362 if (src_die->GetAttributeValueAsUnsigned(src_symfile, src_cu, DW_AT_artificial, 0))
5363 src_name_to_die_artificial.Append(src_const_name.GetCString(), src_die);
5365 src_name_to_die.Append(src_const_name.GetCString(), src_die);
5370 for (dst_die = dst_class_die->GetFirstChild(); dst_die != NULL; dst_die = dst_die->GetSibling())
5372 if (dst_die->Tag() == DW_TAG_subprogram)
5374 // Make sure this is a declaration and not a concrete instance by looking
5375 // for DW_AT_declaration set to 1. Sometimes concrete function instances
5376 // are placed inside the class definitions and shouldn't be included in
5377 // the list of things are are tracking here.
5378 if (dst_die->GetAttributeValueAsUnsigned(this, dst_cu, DW_AT_declaration, 0) == 1)
5380 const char *dst_name = dst_die->GetMangledName (this, dst_cu);
5383 ConstString dst_const_name(dst_name);
5384 if (dst_die->GetAttributeValueAsUnsigned(this, dst_cu, DW_AT_artificial, 0))
5385 dst_name_to_die_artificial.Append(dst_const_name.GetCString(), dst_die);
5387 dst_name_to_die.Append(dst_const_name.GetCString(), dst_die);
5392 const uint32_t src_size = src_name_to_die.GetSize ();
5393 const uint32_t dst_size = dst_name_to_die.GetSize ();
5394 Log *log (LogChannelDWARF::GetLogIfAny(DWARF_LOG_DEBUG_INFO | DWARF_LOG_TYPE_COMPLETION));
5396 // Is everything kosher so we can go through the members at top speed?
5397 bool fast_path = true;
5399 if (src_size != dst_size)
5401 if (src_size != 0 && dst_size != 0)
5404 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)",
5405 src_class_die->GetOffset(),
5406 dst_class_die->GetOffset(),
5418 for (idx = 0; idx < src_size; ++idx)
5420 src_die = src_name_to_die.GetValueAtIndexUnchecked (idx);
5421 dst_die = dst_name_to_die.GetValueAtIndexUnchecked (idx);
5423 if (src_die->Tag() != dst_die->Tag())
5426 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)",
5427 src_class_die->GetOffset(),
5428 dst_class_die->GetOffset(),
5429 src_die->GetOffset(),
5430 DW_TAG_value_to_name(src_die->Tag()),
5431 dst_die->GetOffset(),
5432 DW_TAG_value_to_name(src_die->Tag()));
5436 const char *src_name = src_die->GetMangledName (src_symfile, src_cu);
5437 const char *dst_name = dst_die->GetMangledName (this, dst_cu);
5439 // Make sure the names match
5440 if (src_name == dst_name || (strcmp (src_name, dst_name) == 0))
5444 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)",
5445 src_class_die->GetOffset(),
5446 dst_class_die->GetOffset(),
5447 src_die->GetOffset(),
5449 dst_die->GetOffset(),
5456 // Now do the work of linking the DeclContexts and Types.
5459 // We can do this quickly. Just run across the tables index-for-index since
5460 // we know each node has matching names and tags.
5461 for (idx = 0; idx < src_size; ++idx)
5463 src_die = src_name_to_die.GetValueAtIndexUnchecked (idx);
5464 dst_die = dst_name_to_die.GetValueAtIndexUnchecked (idx);
5466 clang::DeclContext *src_decl_ctx = src_symfile->m_die_to_decl_ctx[src_die];
5470 log->Printf ("uniquing decl context %p from 0x%8.8x for 0x%8.8x", src_decl_ctx, src_die->GetOffset(), dst_die->GetOffset());
5471 LinkDeclContextToDIE (src_decl_ctx, dst_die);
5476 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());
5479 Type *src_child_type = m_die_to_type[src_die];
5483 log->Printf ("uniquing type %p (uid=0x%" PRIx64 ") from 0x%8.8x for 0x%8.8x", src_child_type, src_child_type->GetID(), src_die->GetOffset(), dst_die->GetOffset());
5484 m_die_to_type[dst_die] = src_child_type;
5489 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());
5495 // We must do this slowly. For each member of the destination, look
5496 // up a member in the source with the same name, check its tag, and
5497 // unique them if everything matches up. Report failures.
5499 if (!src_name_to_die.IsEmpty() && !dst_name_to_die.IsEmpty())
5501 src_name_to_die.Sort();
5503 for (idx = 0; idx < dst_size; ++idx)
5505 const char *dst_name = dst_name_to_die.GetCStringAtIndex(idx);
5506 dst_die = dst_name_to_die.GetValueAtIndexUnchecked(idx);
5507 src_die = src_name_to_die.Find(dst_name, NULL);
5509 if (src_die && (src_die->Tag() == dst_die->Tag()))
5511 clang::DeclContext *src_decl_ctx = src_symfile->m_die_to_decl_ctx[src_die];
5515 log->Printf ("uniquing decl context %p from 0x%8.8x for 0x%8.8x", src_decl_ctx, src_die->GetOffset(), dst_die->GetOffset());
5516 LinkDeclContextToDIE (src_decl_ctx, dst_die);
5521 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());
5524 Type *src_child_type = m_die_to_type[src_die];
5528 log->Printf ("uniquing type %p (uid=0x%" PRIx64 ") from 0x%8.8x for 0x%8.8x", src_child_type, src_child_type->GetID(), src_die->GetOffset(), dst_die->GetOffset());
5529 m_die_to_type[dst_die] = src_child_type;
5534 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());
5540 log->Printf ("warning: couldn't find a match for 0x%8.8x", dst_die->GetOffset());
5542 failures.push_back(dst_die);
5548 const uint32_t src_size_artificial = src_name_to_die_artificial.GetSize ();
5549 const uint32_t dst_size_artificial = dst_name_to_die_artificial.GetSize ();
5551 UniqueCStringMap<const DWARFDebugInfoEntry *> name_to_die_artificial_not_in_src;
5553 if (src_size_artificial && dst_size_artificial)
5555 dst_name_to_die_artificial.Sort();
5557 for (idx = 0; idx < src_size_artificial; ++idx)
5559 const char *src_name_artificial = src_name_to_die_artificial.GetCStringAtIndex(idx);
5560 src_die = src_name_to_die_artificial.GetValueAtIndexUnchecked (idx);
5561 dst_die = dst_name_to_die_artificial.Find(src_name_artificial, NULL);
5565 // Both classes have the artificial types, link them
5566 clang::DeclContext *src_decl_ctx = m_die_to_decl_ctx[src_die];
5570 log->Printf ("uniquing decl context %p from 0x%8.8x for 0x%8.8x", src_decl_ctx, src_die->GetOffset(), dst_die->GetOffset());
5571 LinkDeclContextToDIE (src_decl_ctx, dst_die);
5576 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());
5579 Type *src_child_type = m_die_to_type[src_die];
5583 log->Printf ("uniquing type %p (uid=0x%" PRIx64 ") from 0x%8.8x for 0x%8.8x", src_child_type, src_child_type->GetID(), src_die->GetOffset(), dst_die->GetOffset());
5584 m_die_to_type[dst_die] = src_child_type;
5589 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());
5595 if (dst_size_artificial)
5597 for (idx = 0; idx < dst_size_artificial; ++idx)
5599 const char *dst_name_artificial = dst_name_to_die_artificial.GetCStringAtIndex(idx);
5600 dst_die = dst_name_to_die_artificial.GetValueAtIndexUnchecked (idx);
5602 log->Printf ("warning: need to create artificial method for 0x%8.8x for method '%s'", dst_die->GetOffset(), dst_name_artificial);
5604 failures.push_back(dst_die);
5608 return (failures.size() != 0);
5612 SymbolFileDWARF::ParseType (const SymbolContext& sc, DWARFCompileUnit* dwarf_cu, const DWARFDebugInfoEntry *die, bool *type_is_new_ptr)
5616 if (type_is_new_ptr)
5617 *type_is_new_ptr = false;
5619 #if defined(LLDB_CONFIGURATION_DEBUG) or defined(LLDB_CONFIGURATION_RELEASE)
5620 static DIEStack g_die_stack;
5621 DIEStack::ScopedPopper scoped_die_logger(g_die_stack);
5624 AccessType accessibility = eAccessNone;
5627 Log *log (LogChannelDWARF::GetLogIfAll(DWARF_LOG_DEBUG_INFO));
5630 const DWARFDebugInfoEntry *context_die;
5631 clang::DeclContext *context = GetClangDeclContextContainingDIE (dwarf_cu, die, &context_die);
5633 GetObjectFile()->GetModule()->LogMessage (log, "SymbolFileDWARF::ParseType (die = 0x%8.8x, decl_ctx = %p (die 0x%8.8x)) %s name = '%s')",
5636 context_die->GetOffset(),
5637 DW_TAG_value_to_name(die->Tag()),
5638 die->GetName(this, dwarf_cu));
5640 #if defined(LLDB_CONFIGURATION_DEBUG) or defined(LLDB_CONFIGURATION_RELEASE)
5641 scoped_die_logger.Push (dwarf_cu, die);
5642 g_die_stack.LogDIEs(log, this);
5646 // Log *log (LogChannelDWARF::GetLogIfAll(DWARF_LOG_DEBUG_INFO));
5647 // if (log && dwarf_cu)
5650 // die->DumpLocation (this, dwarf_cu, s);
5651 // GetObjectFile()->GetModule()->LogMessage (log, "SymbolFileDwarf::%s %s", __FUNCTION__, s.GetData());
5655 Type *type_ptr = m_die_to_type.lookup (die);
5656 TypeList* type_list = GetTypeList();
5657 if (type_ptr == NULL)
5659 ClangASTContext &ast = GetClangASTContext();
5660 if (type_is_new_ptr)
5661 *type_is_new_ptr = true;
5663 const dw_tag_t tag = die->Tag();
5665 bool is_forward_declaration = false;
5666 DWARFDebugInfoEntry::Attributes attributes;
5667 const char *type_name_cstr = NULL;
5668 ConstString type_name_const_str;
5669 Type::ResolveState resolve_state = Type::eResolveStateUnresolved;
5670 uint64_t byte_size = 0;
5673 Type::EncodingDataType encoding_data_type = Type::eEncodingIsUID;
5674 ClangASTType clang_type;
5680 case DW_TAG_base_type:
5681 case DW_TAG_pointer_type:
5682 case DW_TAG_reference_type:
5683 case DW_TAG_rvalue_reference_type:
5684 case DW_TAG_typedef:
5685 case DW_TAG_const_type:
5686 case DW_TAG_restrict_type:
5687 case DW_TAG_volatile_type:
5688 case DW_TAG_unspecified_type:
5690 // Set a bit that lets us know that we are currently parsing this
5691 m_die_to_type[die] = DIE_IS_BEING_PARSED;
5693 const size_t num_attributes = die->GetAttributes(this, dwarf_cu, NULL, attributes);
5694 uint32_t encoding = 0;
5695 lldb::user_id_t encoding_uid = LLDB_INVALID_UID;
5697 if (num_attributes > 0)
5700 for (i=0; i<num_attributes; ++i)
5702 attr = attributes.AttributeAtIndex(i);
5703 DWARFFormValue form_value;
5704 if (attributes.ExtractFormValueAtIndex(this, i, form_value))
5708 case DW_AT_decl_file: decl.SetFile(sc.comp_unit->GetSupportFiles().GetFileSpecAtIndex(form_value.Unsigned())); break;
5709 case DW_AT_decl_line: decl.SetLine(form_value.Unsigned()); break;
5710 case DW_AT_decl_column: decl.SetColumn(form_value.Unsigned()); break;
5713 type_name_cstr = form_value.AsCString(&get_debug_str_data());
5714 // Work around a bug in llvm-gcc where they give a name to a reference type which doesn't
5715 // include the "&"...
5716 if (tag == DW_TAG_reference_type)
5718 if (strchr (type_name_cstr, '&') == NULL)
5719 type_name_cstr = NULL;
5722 type_name_const_str.SetCString(type_name_cstr);
5724 case DW_AT_byte_size: byte_size = form_value.Unsigned(); break;
5725 case DW_AT_encoding: encoding = form_value.Unsigned(); break;
5726 case DW_AT_type: encoding_uid = form_value.Reference(dwarf_cu); break;
5735 DEBUG_PRINTF ("0x%8.8" PRIx64 ": %s (\"%s\") type => 0x%8.8x\n", MakeUserID(die->GetOffset()), DW_TAG_value_to_name(tag), type_name_cstr, encoding_uid);
5742 case DW_TAG_unspecified_type:
5743 if (strcmp(type_name_cstr, "nullptr_t") == 0 ||
5744 strcmp(type_name_cstr, "decltype(nullptr)") == 0 )
5746 resolve_state = Type::eResolveStateFull;
5747 clang_type = ast.GetBasicType(eBasicTypeNullPtr);
5750 // Fall through to base type below in case we can handle the type there...
5752 case DW_TAG_base_type:
5753 resolve_state = Type::eResolveStateFull;
5754 clang_type = ast.GetBuiltinTypeForDWARFEncodingAndBitSize (type_name_cstr,
5759 case DW_TAG_pointer_type: encoding_data_type = Type::eEncodingIsPointerUID; break;
5760 case DW_TAG_reference_type: encoding_data_type = Type::eEncodingIsLValueReferenceUID; break;
5761 case DW_TAG_rvalue_reference_type: encoding_data_type = Type::eEncodingIsRValueReferenceUID; break;
5762 case DW_TAG_typedef: encoding_data_type = Type::eEncodingIsTypedefUID; break;
5763 case DW_TAG_const_type: encoding_data_type = Type::eEncodingIsConstUID; break;
5764 case DW_TAG_restrict_type: encoding_data_type = Type::eEncodingIsRestrictUID; break;
5765 case DW_TAG_volatile_type: encoding_data_type = Type::eEncodingIsVolatileUID; break;
5768 if (!clang_type && (encoding_data_type == Type::eEncodingIsPointerUID || encoding_data_type == Type::eEncodingIsTypedefUID) && sc.comp_unit != NULL)
5770 bool translation_unit_is_objc = (sc.comp_unit->GetLanguage() == eLanguageTypeObjC || sc.comp_unit->GetLanguage() == eLanguageTypeObjC_plus_plus);
5772 if (translation_unit_is_objc)
5774 if (type_name_cstr != NULL)
5776 static ConstString g_objc_type_name_id("id");
5777 static ConstString g_objc_type_name_Class("Class");
5778 static ConstString g_objc_type_name_selector("SEL");
5780 if (type_name_const_str == g_objc_type_name_id)
5783 GetObjectFile()->GetModule()->LogMessage (log, "SymbolFileDWARF::ParseType (die = 0x%8.8x) %s '%s' is Objective C 'id' built-in type.",
5785 DW_TAG_value_to_name(die->Tag()),
5786 die->GetName(this, dwarf_cu));
5787 clang_type = ast.GetBasicType(eBasicTypeObjCID);
5788 encoding_data_type = Type::eEncodingIsUID;
5789 encoding_uid = LLDB_INVALID_UID;
5790 resolve_state = Type::eResolveStateFull;
5793 else if (type_name_const_str == g_objc_type_name_Class)
5796 GetObjectFile()->GetModule()->LogMessage (log, "SymbolFileDWARF::ParseType (die = 0x%8.8x) %s '%s' is Objective C 'Class' built-in type.",
5798 DW_TAG_value_to_name(die->Tag()),
5799 die->GetName(this, dwarf_cu));
5800 clang_type = ast.GetBasicType(eBasicTypeObjCClass);
5801 encoding_data_type = Type::eEncodingIsUID;
5802 encoding_uid = LLDB_INVALID_UID;
5803 resolve_state = Type::eResolveStateFull;
5805 else if (type_name_const_str == g_objc_type_name_selector)
5808 GetObjectFile()->GetModule()->LogMessage (log, "SymbolFileDWARF::ParseType (die = 0x%8.8x) %s '%s' is Objective C 'selector' built-in type.",
5810 DW_TAG_value_to_name(die->Tag()),
5811 die->GetName(this, dwarf_cu));
5812 clang_type = ast.GetBasicType(eBasicTypeObjCSel);
5813 encoding_data_type = Type::eEncodingIsUID;
5814 encoding_uid = LLDB_INVALID_UID;
5815 resolve_state = Type::eResolveStateFull;
5818 else if (encoding_data_type == Type::eEncodingIsPointerUID && encoding_uid != LLDB_INVALID_UID)
5820 // Clang sometimes erroneously emits id as objc_object*. In that case we fix up the type to "id".
5822 DWARFDebugInfoEntry* encoding_die = dwarf_cu->GetDIEPtr(encoding_uid);
5824 if (encoding_die && encoding_die->Tag() == DW_TAG_structure_type)
5826 if (const char *struct_name = encoding_die->GetAttributeValueAsString(this, dwarf_cu, DW_AT_name, NULL))
5828 if (!strcmp(struct_name, "objc_object"))
5831 GetObjectFile()->GetModule()->LogMessage (log, "SymbolFileDWARF::ParseType (die = 0x%8.8x) %s '%s' is 'objc_object*', which we overrode to 'id'.",
5833 DW_TAG_value_to_name(die->Tag()),
5834 die->GetName(this, dwarf_cu));
5835 clang_type = ast.GetBasicType(eBasicTypeObjCID);
5836 encoding_data_type = Type::eEncodingIsUID;
5837 encoding_uid = LLDB_INVALID_UID;
5838 resolve_state = Type::eResolveStateFull;
5846 type_sp.reset( new Type (MakeUserID(die->GetOffset()),
5848 type_name_const_str,
5857 m_die_to_type[die] = type_sp.get();
5859 // Type* encoding_type = GetUniquedTypeForDIEOffset(encoding_uid, type_sp, NULL, 0, 0, false);
5860 // if (encoding_type != NULL)
5862 // if (encoding_type != DIE_IS_BEING_PARSED)
5863 // type_sp->SetEncodingType(encoding_type);
5865 // m_indirect_fixups.push_back(type_sp.get());
5870 case DW_TAG_structure_type:
5871 case DW_TAG_union_type:
5872 case DW_TAG_class_type:
5874 // Set a bit that lets us know that we are currently parsing this
5875 m_die_to_type[die] = DIE_IS_BEING_PARSED;
5876 bool byte_size_valid = false;
5878 LanguageType class_language = eLanguageTypeUnknown;
5879 bool is_complete_objc_class = false;
5880 //bool struct_is_class = false;
5881 const size_t num_attributes = die->GetAttributes(this, dwarf_cu, NULL, attributes);
5882 if (num_attributes > 0)
5885 for (i=0; i<num_attributes; ++i)
5887 attr = attributes.AttributeAtIndex(i);
5888 DWARFFormValue form_value;
5889 if (attributes.ExtractFormValueAtIndex(this, i, form_value))
5893 case DW_AT_decl_file:
5894 if (dwarf_cu->DW_AT_decl_file_attributes_are_invalid())
5896 // llvm-gcc outputs invalid DW_AT_decl_file attributes that always
5897 // point to the compile unit file, so we clear this invalid value
5898 // so that we can still unique types efficiently.
5899 decl.SetFile(FileSpec ("<invalid>", false));
5902 decl.SetFile(sc.comp_unit->GetSupportFiles().GetFileSpecAtIndex(form_value.Unsigned()));
5905 case DW_AT_decl_line:
5906 decl.SetLine(form_value.Unsigned());
5909 case DW_AT_decl_column:
5910 decl.SetColumn(form_value.Unsigned());
5914 type_name_cstr = form_value.AsCString(&get_debug_str_data());
5915 type_name_const_str.SetCString(type_name_cstr);
5918 case DW_AT_byte_size:
5919 byte_size = form_value.Unsigned();
5920 byte_size_valid = true;
5923 case DW_AT_accessibility:
5924 accessibility = DW_ACCESS_to_AccessType(form_value.Unsigned());
5927 case DW_AT_declaration:
5928 is_forward_declaration = form_value.Boolean();
5931 case DW_AT_APPLE_runtime_class:
5932 class_language = (LanguageType)form_value.Signed();
5935 case DW_AT_APPLE_objc_complete_type:
5936 is_complete_objc_class = form_value.Signed();
5939 case DW_AT_allocated:
5940 case DW_AT_associated:
5941 case DW_AT_data_location:
5942 case DW_AT_description:
5943 case DW_AT_start_scope:
5944 case DW_AT_visibility:
5953 UniqueDWARFASTType unique_ast_entry;
5955 // Only try and unique the type if it has a name.
5956 if (type_name_const_str &&
5957 GetUniqueDWARFASTTypeMap().Find (type_name_const_str,
5962 byte_size_valid ? byte_size : -1,
5965 // We have already parsed this type or from another
5966 // compile unit. GCC loves to use the "one definition
5967 // rule" which can result in multiple definitions
5968 // of the same class over and over in each compile
5970 type_sp = unique_ast_entry.m_type_sp;
5973 m_die_to_type[die] = type_sp.get();
5978 DEBUG_PRINTF ("0x%8.8" PRIx64 ": %s (\"%s\")\n", MakeUserID(die->GetOffset()), DW_TAG_value_to_name(tag), type_name_cstr);
5980 int tag_decl_kind = -1;
5981 AccessType default_accessibility = eAccessNone;
5982 if (tag == DW_TAG_structure_type)
5984 tag_decl_kind = clang::TTK_Struct;
5985 default_accessibility = eAccessPublic;
5987 else if (tag == DW_TAG_union_type)
5989 tag_decl_kind = clang::TTK_Union;
5990 default_accessibility = eAccessPublic;
5992 else if (tag == DW_TAG_class_type)
5994 tag_decl_kind = clang::TTK_Class;
5995 default_accessibility = eAccessPrivate;
5998 if (byte_size_valid && byte_size == 0 && type_name_cstr &&
5999 die->HasChildren() == false &&
6000 sc.comp_unit->GetLanguage() == eLanguageTypeObjC)
6002 // Work around an issue with clang at the moment where
6003 // forward declarations for objective C classes are emitted
6005 // DW_TAG_structure_type [2]
6006 // DW_AT_name( "ForwardObjcClass" )
6007 // DW_AT_byte_size( 0x00 )
6008 // DW_AT_decl_file( "..." )
6009 // DW_AT_decl_line( 1 )
6011 // Note that there is no DW_AT_declaration and there are
6012 // no children, and the byte size is zero.
6013 is_forward_declaration = true;
6016 if (class_language == eLanguageTypeObjC ||
6017 class_language == eLanguageTypeObjC_plus_plus)
6019 if (!is_complete_objc_class && Supports_DW_AT_APPLE_objc_complete_type(dwarf_cu))
6021 // We have a valid eSymbolTypeObjCClass class symbol whose
6022 // name matches the current objective C class that we
6023 // are trying to find and this DIE isn't the complete
6024 // definition (we checked is_complete_objc_class above and
6025 // know it is false), so the real definition is in here somewhere
6026 type_sp = FindCompleteObjCDefinitionTypeForDIE (die, type_name_const_str, true);
6028 if (!type_sp && GetDebugMapSymfile ())
6030 // We weren't able to find a full declaration in
6031 // this DWARF, see if we have a declaration anywhere
6033 type_sp = m_debug_map_symfile->FindCompleteObjCDefinitionTypeForDIE (die, type_name_const_str, true);
6040 GetObjectFile()->GetModule()->LogMessage (log,
6041 "SymbolFileDWARF(%p) - 0x%8.8x: %s type \"%s\" is an incomplete objc type, complete type is 0x%8.8" PRIx64,
6044 DW_TAG_value_to_name(tag),
6049 // We found a real definition for this type elsewhere
6050 // so lets use it and cache the fact that we found
6051 // a complete type for this die
6052 m_die_to_type[die] = type_sp.get();
6059 if (is_forward_declaration)
6061 // We have a forward declaration to a type and we need
6062 // to try and find a full declaration. We look in the
6063 // current type index just in case we have a forward
6064 // declaration followed by an actual declarations in the
6065 // DWARF. If this fails, we need to look elsewhere...
6068 GetObjectFile()->GetModule()->LogMessage (log,
6069 "SymbolFileDWARF(%p) - 0x%8.8x: %s type \"%s\" is a forward declaration, trying to find complete type",
6072 DW_TAG_value_to_name(tag),
6076 DWARFDeclContext die_decl_ctx;
6077 die->GetDWARFDeclContext(this, dwarf_cu, die_decl_ctx);
6079 //type_sp = FindDefinitionTypeForDIE (dwarf_cu, die, type_name_const_str);
6080 type_sp = FindDefinitionTypeForDWARFDeclContext (die_decl_ctx);
6082 if (!type_sp && GetDebugMapSymfile ())
6084 // We weren't able to find a full declaration in
6085 // this DWARF, see if we have a declaration anywhere
6087 type_sp = m_debug_map_symfile->FindDefinitionTypeForDWARFDeclContext (die_decl_ctx);
6094 GetObjectFile()->GetModule()->LogMessage (log,
6095 "SymbolFileDWARF(%p) - 0x%8.8x: %s type \"%s\" is a forward declaration, complete type is 0x%8.8" PRIx64,
6098 DW_TAG_value_to_name(tag),
6103 // We found a real definition for this type elsewhere
6104 // so lets use it and cache the fact that we found
6105 // a complete type for this die
6106 m_die_to_type[die] = type_sp.get();
6110 assert (tag_decl_kind != -1);
6111 bool clang_type_was_created = false;
6112 clang_type.SetClangType(ast.getASTContext(), m_forward_decl_die_to_clang_type.lookup (die));
6115 const DWARFDebugInfoEntry *decl_ctx_die;
6117 clang::DeclContext *decl_ctx = GetClangDeclContextContainingDIE (dwarf_cu, die, &decl_ctx_die);
6118 if (accessibility == eAccessNone && decl_ctx)
6120 // Check the decl context that contains this class/struct/union.
6121 // If it is a class we must give it an accessability.
6122 const clang::Decl::Kind containing_decl_kind = decl_ctx->getDeclKind();
6123 if (DeclKindIsCXXClass (containing_decl_kind))
6124 accessibility = default_accessibility;
6127 ClangASTMetadata metadata;
6128 metadata.SetUserID(MakeUserID(die->GetOffset()));
6129 metadata.SetIsDynamicCXXType(ClassOrStructIsVirtual (dwarf_cu, die));
6131 if (type_name_cstr && strchr (type_name_cstr, '<'))
6133 ClangASTContext::TemplateParameterInfos template_param_infos;
6134 if (ParseTemplateParameterInfos (dwarf_cu, die, template_param_infos))
6136 clang::ClassTemplateDecl *class_template_decl = ParseClassTemplateDecl (decl_ctx,
6140 template_param_infos);
6142 clang::ClassTemplateSpecializationDecl *class_specialization_decl = ast.CreateClassTemplateSpecializationDecl (decl_ctx,
6143 class_template_decl,
6145 template_param_infos);
6146 clang_type = ast.CreateClassTemplateSpecializationType (class_specialization_decl);
6147 clang_type_was_created = true;
6149 GetClangASTContext().SetMetadata (class_template_decl, metadata);
6150 GetClangASTContext().SetMetadata (class_specialization_decl, metadata);
6154 if (!clang_type_was_created)
6156 clang_type_was_created = true;
6157 clang_type = ast.CreateRecordType (decl_ctx,
6166 // Store a forward declaration to this class type in case any
6167 // parameters in any class methods need it for the clang
6168 // types for function prototypes.
6169 LinkDeclContextToDIE(clang_type.GetDeclContextForType(), die);
6170 type_sp.reset (new Type (MakeUserID(die->GetOffset()),
6172 type_name_const_str,
6176 Type::eEncodingIsUID,
6179 Type::eResolveStateForward));
6181 type_sp->SetIsCompleteObjCClass(is_complete_objc_class);
6184 // Add our type to the unique type map so we don't
6185 // end up creating many copies of the same type over
6186 // and over in the ASTContext for our module
6187 unique_ast_entry.m_type_sp = type_sp;
6188 unique_ast_entry.m_symfile = this;
6189 unique_ast_entry.m_cu = dwarf_cu;
6190 unique_ast_entry.m_die = die;
6191 unique_ast_entry.m_declaration = decl;
6192 unique_ast_entry.m_byte_size = byte_size;
6193 GetUniqueDWARFASTTypeMap().Insert (type_name_const_str,
6196 if (is_forward_declaration && die->HasChildren())
6198 // Check to see if the DIE actually has a definition, some version of GCC will
6199 // emit DIEs with DW_AT_declaration set to true, but yet still have subprogram,
6200 // members, or inheritance, so we can't trust it
6201 const DWARFDebugInfoEntry *child_die = die->GetFirstChild();
6204 switch (child_die->Tag())
6206 case DW_TAG_inheritance:
6207 case DW_TAG_subprogram:
6209 case DW_TAG_APPLE_property:
6211 is_forward_declaration = false;
6214 child_die = child_die->GetSibling();
6220 if (!is_forward_declaration)
6222 // Always start the definition for a class type so that
6223 // if the class has child classes or types that require
6224 // the class to be created for use as their decl contexts
6225 // the class will be ready to accept these child definitions.
6226 if (die->HasChildren() == false)
6228 // No children for this struct/union/class, lets finish it
6229 clang_type.StartTagDeclarationDefinition ();
6230 clang_type.CompleteTagDeclarationDefinition ();
6232 if (tag == DW_TAG_structure_type) // this only applies in C
6234 clang::RecordDecl *record_decl = clang_type.GetAsRecordDecl();
6238 LayoutInfo layout_info;
6240 layout_info.alignment = 0;
6241 layout_info.bit_size = 0;
6243 m_record_decl_to_layout_map.insert(std::make_pair(record_decl, layout_info));
6247 else if (clang_type_was_created)
6249 // Start the definition if the class is not objective C since
6250 // the underlying decls respond to isCompleteDefinition(). Objective
6251 // C decls dont' respond to isCompleteDefinition() so we can't
6252 // start the declaration definition right away. For C++ classs/union/structs
6253 // we want to start the definition in case the class is needed as the
6254 // declaration context for a contained class or type without the need
6255 // to complete that type..
6257 if (class_language != eLanguageTypeObjC &&
6258 class_language != eLanguageTypeObjC_plus_plus)
6259 clang_type.StartTagDeclarationDefinition ();
6261 // Leave this as a forward declaration until we need
6262 // to know the details of the type. lldb_private::Type
6263 // will automatically call the SymbolFile virtual function
6264 // "SymbolFileDWARF::ResolveClangOpaqueTypeDefinition(Type *)"
6265 // When the definition needs to be defined.
6266 m_forward_decl_die_to_clang_type[die] = clang_type.GetOpaqueQualType();
6267 m_forward_decl_clang_type_to_die[clang_type.RemoveFastQualifiers().GetOpaqueQualType()] = die;
6268 clang_type.SetHasExternalStorage (true);
6275 case DW_TAG_enumeration_type:
6277 // Set a bit that lets us know that we are currently parsing this
6278 m_die_to_type[die] = DIE_IS_BEING_PARSED;
6280 lldb::user_id_t encoding_uid = DW_INVALID_OFFSET;
6282 const size_t num_attributes = die->GetAttributes(this, dwarf_cu, NULL, attributes);
6283 if (num_attributes > 0)
6287 for (i=0; i<num_attributes; ++i)
6289 attr = attributes.AttributeAtIndex(i);
6290 DWARFFormValue form_value;
6291 if (attributes.ExtractFormValueAtIndex(this, i, form_value))
6295 case DW_AT_decl_file: decl.SetFile(sc.comp_unit->GetSupportFiles().GetFileSpecAtIndex(form_value.Unsigned())); break;
6296 case DW_AT_decl_line: decl.SetLine(form_value.Unsigned()); break;
6297 case DW_AT_decl_column: decl.SetColumn(form_value.Unsigned()); break;
6299 type_name_cstr = form_value.AsCString(&get_debug_str_data());
6300 type_name_const_str.SetCString(type_name_cstr);
6302 case DW_AT_type: encoding_uid = form_value.Reference(dwarf_cu); break;
6303 case DW_AT_byte_size: byte_size = form_value.Unsigned(); break;
6304 case DW_AT_accessibility: break; //accessibility = DW_ACCESS_to_AccessType(form_value.Unsigned()); break;
6305 case DW_AT_declaration: break; //is_forward_declaration = form_value.Boolean(); break;
6306 case DW_AT_allocated:
6307 case DW_AT_associated:
6308 case DW_AT_bit_stride:
6309 case DW_AT_byte_stride:
6310 case DW_AT_data_location:
6311 case DW_AT_description:
6312 case DW_AT_start_scope:
6313 case DW_AT_visibility:
6314 case DW_AT_specification:
6315 case DW_AT_abstract_origin:
6322 DEBUG_PRINTF ("0x%8.8" PRIx64 ": %s (\"%s\")\n", MakeUserID(die->GetOffset()), DW_TAG_value_to_name(tag), type_name_cstr);
6324 ClangASTType enumerator_clang_type;
6325 clang_type.SetClangType (ast.getASTContext(), m_forward_decl_die_to_clang_type.lookup (die));
6328 if (encoding_uid != DW_INVALID_OFFSET)
6330 Type *enumerator_type = ResolveTypeUID(encoding_uid);
6331 if (enumerator_type)
6332 enumerator_clang_type = enumerator_type->GetClangFullType();
6335 if (!enumerator_clang_type)
6336 enumerator_clang_type = ast.GetBuiltinTypeForDWARFEncodingAndBitSize (NULL,
6340 clang_type = ast.CreateEnumerationType (type_name_cstr,
6341 GetClangDeclContextContainingDIE (dwarf_cu, die, NULL),
6343 enumerator_clang_type);
6347 enumerator_clang_type = clang_type.GetEnumerationIntegerType ();
6350 LinkDeclContextToDIE(clang_type.GetDeclContextForType(), die);
6352 type_sp.reset( new Type (MakeUserID(die->GetOffset()),
6354 type_name_const_str,
6358 Type::eEncodingIsUID,
6361 Type::eResolveStateForward));
6363 clang_type.StartTagDeclarationDefinition ();
6364 if (die->HasChildren())
6366 SymbolContext cu_sc(GetCompUnitForDWARFCompUnit(dwarf_cu));
6367 bool is_signed = false;
6368 enumerator_clang_type.IsIntegerType(is_signed);
6369 ParseChildEnumerators(cu_sc, clang_type, is_signed, type_sp->GetByteSize(), dwarf_cu, die);
6371 clang_type.CompleteTagDeclarationDefinition ();
6376 case DW_TAG_inlined_subroutine:
6377 case DW_TAG_subprogram:
6378 case DW_TAG_subroutine_type:
6380 // Set a bit that lets us know that we are currently parsing this
6381 m_die_to_type[die] = DIE_IS_BEING_PARSED;
6383 //const char *mangled = NULL;
6384 dw_offset_t type_die_offset = DW_INVALID_OFFSET;
6385 bool is_variadic = false;
6386 bool is_inline = false;
6387 bool is_static = false;
6388 bool is_virtual = false;
6389 bool is_explicit = false;
6390 bool is_artificial = false;
6391 dw_offset_t specification_die_offset = DW_INVALID_OFFSET;
6392 dw_offset_t abstract_origin_die_offset = DW_INVALID_OFFSET;
6393 dw_offset_t object_pointer_die_offset = DW_INVALID_OFFSET;
6395 unsigned type_quals = 0;
6396 clang::StorageClass storage = clang::SC_None;//, Extern, Static, PrivateExtern
6399 const size_t num_attributes = die->GetAttributes(this, dwarf_cu, NULL, attributes);
6400 if (num_attributes > 0)
6403 for (i=0; i<num_attributes; ++i)
6405 attr = attributes.AttributeAtIndex(i);
6406 DWARFFormValue form_value;
6407 if (attributes.ExtractFormValueAtIndex(this, i, form_value))
6411 case DW_AT_decl_file: decl.SetFile(sc.comp_unit->GetSupportFiles().GetFileSpecAtIndex(form_value.Unsigned())); break;
6412 case DW_AT_decl_line: decl.SetLine(form_value.Unsigned()); break;
6413 case DW_AT_decl_column: decl.SetColumn(form_value.Unsigned()); break;
6415 type_name_cstr = form_value.AsCString(&get_debug_str_data());
6416 type_name_const_str.SetCString(type_name_cstr);
6419 case DW_AT_linkage_name:
6420 case DW_AT_MIPS_linkage_name: break; // mangled = form_value.AsCString(&get_debug_str_data()); break;
6421 case DW_AT_type: type_die_offset = form_value.Reference(dwarf_cu); break;
6422 case DW_AT_accessibility: accessibility = DW_ACCESS_to_AccessType(form_value.Unsigned()); break;
6423 case DW_AT_declaration: break; // is_forward_declaration = form_value.Boolean(); break;
6424 case DW_AT_inline: is_inline = form_value.Boolean(); break;
6425 case DW_AT_virtuality: is_virtual = form_value.Boolean(); break;
6426 case DW_AT_explicit: is_explicit = form_value.Boolean(); break;
6427 case DW_AT_artificial: is_artificial = form_value.Boolean(); break;
6430 case DW_AT_external:
6431 if (form_value.Unsigned())
6433 if (storage == clang::SC_None)
6434 storage = clang::SC_Extern;
6436 storage = clang::SC_PrivateExtern;
6440 case DW_AT_specification:
6441 specification_die_offset = form_value.Reference(dwarf_cu);
6444 case DW_AT_abstract_origin:
6445 abstract_origin_die_offset = form_value.Reference(dwarf_cu);
6448 case DW_AT_object_pointer:
6449 object_pointer_die_offset = form_value.Reference(dwarf_cu);
6452 case DW_AT_allocated:
6453 case DW_AT_associated:
6454 case DW_AT_address_class:
6455 case DW_AT_calling_convention:
6456 case DW_AT_data_location:
6457 case DW_AT_elemental:
6458 case DW_AT_entry_pc:
6459 case DW_AT_frame_base:
6462 case DW_AT_prototyped:
6465 case DW_AT_recursive:
6466 case DW_AT_return_addr:
6468 case DW_AT_start_scope:
6469 case DW_AT_static_link:
6470 case DW_AT_trampoline:
6471 case DW_AT_visibility:
6472 case DW_AT_vtable_elem_location:
6473 case DW_AT_description:
6481 std::string object_pointer_name;
6482 if (object_pointer_die_offset != DW_INVALID_OFFSET)
6484 // Get the name from the object pointer die
6486 if (DWARFDebugInfoEntry::GetName (this, dwarf_cu, object_pointer_die_offset, s))
6488 object_pointer_name.assign(s.GetData());
6492 DEBUG_PRINTF ("0x%8.8" PRIx64 ": %s (\"%s\")\n", MakeUserID(die->GetOffset()), DW_TAG_value_to_name(tag), type_name_cstr);
6494 ClangASTType return_clang_type;
6495 Type *func_type = NULL;
6497 if (type_die_offset != DW_INVALID_OFFSET)
6498 func_type = ResolveTypeUID(type_die_offset);
6501 return_clang_type = func_type->GetClangForwardType();
6503 return_clang_type = ast.GetBasicType(eBasicTypeVoid);
6506 std::vector<ClangASTType> function_param_types;
6507 std::vector<clang::ParmVarDecl*> function_param_decls;
6509 // Parse the function children for the parameters
6511 const DWARFDebugInfoEntry *decl_ctx_die = NULL;
6512 clang::DeclContext *containing_decl_ctx = GetClangDeclContextContainingDIE (dwarf_cu, die, &decl_ctx_die);
6513 const clang::Decl::Kind containing_decl_kind = containing_decl_ctx->getDeclKind();
6515 const bool is_cxx_method = DeclKindIsCXXClass (containing_decl_kind);
6516 // Start off static. This will be set to false in ParseChildParameters(...)
6517 // if we find a "this" paramters as the first parameter
6520 ClangASTContext::TemplateParameterInfos template_param_infos;
6522 if (die->HasChildren())
6524 bool skip_artificial = true;
6525 ParseChildParameters (sc,
6526 containing_decl_ctx,
6532 function_param_types,
6533 function_param_decls,
6535 template_param_infos);
6538 // clang_type will get the function prototype clang type after this call
6539 clang_type = ast.CreateFunctionType (return_clang_type,
6540 function_param_types.data(),
6541 function_param_types.size(),
6545 bool ignore_containing_context = false;
6549 bool type_handled = false;
6550 if (tag == DW_TAG_subprogram)
6552 ObjCLanguageRuntime::MethodName objc_method (type_name_cstr, true);
6553 if (objc_method.IsValid(true))
6555 SymbolContext empty_sc;
6556 ClangASTType class_opaque_type;
6557 ConstString class_name(objc_method.GetClassName());
6561 TypeSP complete_objc_class_type_sp (FindCompleteObjCDefinitionTypeForDIE (NULL, class_name, false));
6563 if (complete_objc_class_type_sp)
6565 ClangASTType type_clang_forward_type = complete_objc_class_type_sp->GetClangForwardType();
6566 if (type_clang_forward_type.IsObjCObjectOrInterfaceType ())
6567 class_opaque_type = type_clang_forward_type;
6571 if (class_opaque_type)
6573 // If accessibility isn't set to anything valid, assume public for
6575 if (accessibility == eAccessNone)
6576 accessibility = eAccessPublic;
6578 clang::ObjCMethodDecl *objc_method_decl = class_opaque_type.AddMethodToObjCObjectType (type_name_cstr,
6582 type_handled = objc_method_decl != NULL;
6585 LinkDeclContextToDIE(ClangASTContext::GetAsDeclContext(objc_method_decl), die);
6586 GetClangASTContext().SetMetadataAsUserID (objc_method_decl, MakeUserID(die->GetOffset()));
6590 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",
6593 DW_TAG_value_to_name(tag));
6597 else if (is_cxx_method)
6599 // Look at the parent of this DIE and see if is is
6600 // a class or struct and see if this is actually a
6602 Type *class_type = ResolveType (dwarf_cu, decl_ctx_die);
6605 if (class_type->GetID() != MakeUserID(decl_ctx_die->GetOffset()))
6607 // We uniqued the parent class of this function to another class
6608 // so we now need to associate all dies under "decl_ctx_die" to
6609 // DIEs in the DIE for "class_type"...
6610 SymbolFileDWARF *class_symfile = NULL;
6611 DWARFCompileUnitSP class_type_cu_sp;
6612 const DWARFDebugInfoEntry *class_type_die = NULL;
6614 SymbolFileDWARFDebugMap *debug_map_symfile = GetDebugMapSymfile();
6615 if (debug_map_symfile)
6617 class_symfile = debug_map_symfile->GetSymbolFileByOSOIndex(SymbolFileDWARFDebugMap::GetOSOIndexFromUserID(class_type->GetID()));
6618 class_type_die = class_symfile->DebugInfo()->GetDIEPtr(class_type->GetID(), &class_type_cu_sp);
6622 class_symfile = this;
6623 class_type_die = DebugInfo()->GetDIEPtr(class_type->GetID(), &class_type_cu_sp);
6627 llvm::SmallVector<const DWARFDebugInfoEntry *, 0> failures;
6629 CopyUniqueClassMethodTypes (class_symfile,
6631 class_type_cu_sp.get(),
6637 // FIXME do something with these failures that's smarter than
6638 // just dropping them on the ground. Unfortunately classes don't
6639 // like having stuff added to them after their definitions are
6642 type_ptr = m_die_to_type[die];
6643 if (type_ptr && type_ptr != DIE_IS_BEING_PARSED)
6645 type_sp = type_ptr->shared_from_this();
6651 if (specification_die_offset != DW_INVALID_OFFSET)
6653 // We have a specification which we are going to base our function
6654 // prototype off of, so we need this type to be completed so that the
6655 // m_die_to_decl_ctx for the method in the specification has a valid
6656 // clang decl context.
6657 class_type->GetClangForwardType();
6658 // If we have a specification, then the function type should have been
6659 // made with the specification and not with this die.
6660 DWARFCompileUnitSP spec_cu_sp;
6661 const DWARFDebugInfoEntry* spec_die = DebugInfo()->GetDIEPtr(specification_die_offset, &spec_cu_sp);
6662 clang::DeclContext *spec_clang_decl_ctx = GetClangDeclContextForDIE (sc, dwarf_cu, spec_die);
6663 if (spec_clang_decl_ctx)
6665 LinkDeclContextToDIE(spec_clang_decl_ctx, die);
6669 GetObjectFile()->GetModule()->ReportWarning ("0x%8.8" PRIx64 ": DW_AT_specification(0x%8.8x) has no decl\n",
6670 MakeUserID(die->GetOffset()),
6671 specification_die_offset);
6673 type_handled = true;
6675 else if (abstract_origin_die_offset != DW_INVALID_OFFSET)
6677 // We have a specification which we are going to base our function
6678 // prototype off of, so we need this type to be completed so that the
6679 // m_die_to_decl_ctx for the method in the abstract origin has a valid
6680 // clang decl context.
6681 class_type->GetClangForwardType();
6683 DWARFCompileUnitSP abs_cu_sp;
6684 const DWARFDebugInfoEntry* abs_die = DebugInfo()->GetDIEPtr(abstract_origin_die_offset, &abs_cu_sp);
6685 clang::DeclContext *abs_clang_decl_ctx = GetClangDeclContextForDIE (sc, dwarf_cu, abs_die);
6686 if (abs_clang_decl_ctx)
6688 LinkDeclContextToDIE (abs_clang_decl_ctx, die);
6692 GetObjectFile()->GetModule()->ReportWarning ("0x%8.8" PRIx64 ": DW_AT_abstract_origin(0x%8.8x) has no decl\n",
6693 MakeUserID(die->GetOffset()),
6694 abstract_origin_die_offset);
6696 type_handled = true;
6700 ClangASTType class_opaque_type = class_type->GetClangForwardType();
6701 if (class_opaque_type.IsCXXClassType ())
6703 if (class_opaque_type.IsBeingDefined ())
6705 // Neither GCC 4.2 nor clang++ currently set a valid accessibility
6706 // in the DWARF for C++ methods... Default to public for now...
6707 if (accessibility == eAccessNone)
6708 accessibility = eAccessPublic;
6710 if (!is_static && !die->HasChildren())
6712 // We have a C++ member function with no children (this pointer!)
6713 // and clang will get mad if we try and make a function that isn't
6714 // well formed in the DWARF, so we will just skip it...
6715 type_handled = true;
6719 clang::CXXMethodDecl *cxx_method_decl;
6720 // REMOVE THE CRASH DESCRIPTION BELOW
6721 Host::SetCrashDescriptionWithFormat ("SymbolFileDWARF::ParseType() is adding a method %s to class %s in DIE 0x%8.8" PRIx64 " from %s",
6723 class_type->GetName().GetCString(),
6724 MakeUserID(die->GetOffset()),
6725 m_obj_file->GetFileSpec().GetPath().c_str());
6727 const bool is_attr_used = false;
6729 cxx_method_decl = class_opaque_type.AddMethodToCXXRecordType (type_name_cstr,
6739 type_handled = cxx_method_decl != NULL;
6743 LinkDeclContextToDIE(ClangASTContext::GetAsDeclContext(cxx_method_decl), die);
6745 Host::SetCrashDescription (NULL);
6748 ClangASTMetadata metadata;
6749 metadata.SetUserID(MakeUserID(die->GetOffset()));
6751 if (!object_pointer_name.empty())
6753 metadata.SetObjectPtrName(object_pointer_name.c_str());
6755 log->Printf ("Setting object pointer name: %s on method object %p.\n",
6756 object_pointer_name.c_str(),
6759 GetClangASTContext().SetMetadata (cxx_method_decl, metadata);
6763 ignore_containing_context = true;
6769 // We were asked to parse the type for a method in a class, yet the
6770 // class hasn't been asked to complete itself through the
6771 // clang::ExternalASTSource protocol, so we need to just have the
6772 // class complete itself and do things the right way, then our
6773 // DIE should then have an entry in the m_die_to_type map. First
6774 // we need to modify the m_die_to_type so it doesn't think we are
6775 // trying to parse this DIE anymore...
6776 m_die_to_type[die] = NULL;
6778 // Now we get the full type to force our class type to complete itself
6779 // using the clang::ExternalASTSource protocol which will parse all
6780 // base classes and all methods (including the method for this DIE).
6781 class_type->GetClangFullType();
6783 // The type for this DIE should have been filled in the function call above
6784 type_ptr = m_die_to_type[die];
6785 if (type_ptr && type_ptr != DIE_IS_BEING_PARSED)
6787 type_sp = type_ptr->shared_from_this();
6791 // FIXME This is fixing some even uglier behavior but we really need to
6792 // uniq the methods of each class as well as the class itself.
6793 // <rdar://problem/11240464>
6794 type_handled = true;
6804 // We just have a function that isn't part of a class
6805 clang::FunctionDecl *function_decl = ast.CreateFunctionDeclaration (ignore_containing_context ? GetClangASTContext().GetTranslationUnitDecl() : containing_decl_ctx,
6811 // if (template_param_infos.GetSize() > 0)
6813 // clang::FunctionTemplateDecl *func_template_decl = ast.CreateFunctionTemplateDecl (containing_decl_ctx,
6816 // template_param_infos);
6818 // ast.CreateFunctionTemplateSpecializationInfo (function_decl,
6819 // func_template_decl,
6820 // template_param_infos);
6822 // Add the decl to our DIE to decl context map
6823 assert (function_decl);
6824 LinkDeclContextToDIE(function_decl, die);
6825 if (!function_param_decls.empty())
6826 ast.SetFunctionParameters (function_decl,
6827 &function_param_decls.front(),
6828 function_param_decls.size());
6830 ClangASTMetadata metadata;
6831 metadata.SetUserID(MakeUserID(die->GetOffset()));
6833 if (!object_pointer_name.empty())
6835 metadata.SetObjectPtrName(object_pointer_name.c_str());
6837 log->Printf ("Setting object pointer name: %s on function object %p.",
6838 object_pointer_name.c_str(),
6841 GetClangASTContext().SetMetadata (function_decl, metadata);
6844 type_sp.reset( new Type (MakeUserID(die->GetOffset()),
6846 type_name_const_str,
6850 Type::eEncodingIsUID,
6853 Type::eResolveStateFull));
6854 assert(type_sp.get());
6858 case DW_TAG_array_type:
6860 // Set a bit that lets us know that we are currently parsing this
6861 m_die_to_type[die] = DIE_IS_BEING_PARSED;
6863 lldb::user_id_t type_die_offset = DW_INVALID_OFFSET;
6864 int64_t first_index = 0;
6865 uint32_t byte_stride = 0;
6866 uint32_t bit_stride = 0;
6867 bool is_vector = false;
6868 const size_t num_attributes = die->GetAttributes(this, dwarf_cu, NULL, attributes);
6870 if (num_attributes > 0)
6873 for (i=0; i<num_attributes; ++i)
6875 attr = attributes.AttributeAtIndex(i);
6876 DWARFFormValue form_value;
6877 if (attributes.ExtractFormValueAtIndex(this, i, form_value))
6881 case DW_AT_decl_file: decl.SetFile(sc.comp_unit->GetSupportFiles().GetFileSpecAtIndex(form_value.Unsigned())); break;
6882 case DW_AT_decl_line: decl.SetLine(form_value.Unsigned()); break;
6883 case DW_AT_decl_column: decl.SetColumn(form_value.Unsigned()); break;
6885 type_name_cstr = form_value.AsCString(&get_debug_str_data());
6886 type_name_const_str.SetCString(type_name_cstr);
6889 case DW_AT_type: type_die_offset = form_value.Reference(dwarf_cu); break;
6890 case DW_AT_byte_size: break; // byte_size = form_value.Unsigned(); break;
6891 case DW_AT_byte_stride: byte_stride = form_value.Unsigned(); break;
6892 case DW_AT_bit_stride: bit_stride = form_value.Unsigned(); break;
6893 case DW_AT_GNU_vector: is_vector = form_value.Boolean(); break;
6894 case DW_AT_accessibility: break; // accessibility = DW_ACCESS_to_AccessType(form_value.Unsigned()); break;
6895 case DW_AT_declaration: break; // is_forward_declaration = form_value.Boolean(); break;
6896 case DW_AT_allocated:
6897 case DW_AT_associated:
6898 case DW_AT_data_location:
6899 case DW_AT_description:
6900 case DW_AT_ordering:
6901 case DW_AT_start_scope:
6902 case DW_AT_visibility:
6903 case DW_AT_specification:
6904 case DW_AT_abstract_origin:
6911 DEBUG_PRINTF ("0x%8.8" PRIx64 ": %s (\"%s\")\n", MakeUserID(die->GetOffset()), DW_TAG_value_to_name(tag), type_name_cstr);
6913 Type *element_type = ResolveTypeUID(type_die_offset);
6917 std::vector<uint64_t> element_orders;
6918 ParseChildArrayInfo(sc, dwarf_cu, die, first_index, element_orders, byte_stride, bit_stride);
6919 if (byte_stride == 0 && bit_stride == 0)
6920 byte_stride = element_type->GetByteSize();
6921 ClangASTType array_element_type = element_type->GetClangForwardType();
6922 uint64_t array_element_bit_stride = byte_stride * 8 + bit_stride;
6923 uint64_t num_elements = 0;
6924 std::vector<uint64_t>::const_reverse_iterator pos;
6925 std::vector<uint64_t>::const_reverse_iterator end = element_orders.rend();
6926 for (pos = element_orders.rbegin(); pos != end; ++pos)
6928 num_elements = *pos;
6929 clang_type = ast.CreateArrayType (array_element_type,
6932 array_element_type = clang_type;
6933 array_element_bit_stride = num_elements ? array_element_bit_stride * num_elements : array_element_bit_stride;
6935 ConstString empty_name;
6936 type_sp.reset( new Type (MakeUserID(die->GetOffset()),
6939 array_element_bit_stride / 8,
6942 Type::eEncodingIsUID,
6945 Type::eResolveStateFull));
6946 type_sp->SetEncodingType (element_type);
6952 case DW_TAG_ptr_to_member_type:
6954 dw_offset_t type_die_offset = DW_INVALID_OFFSET;
6955 dw_offset_t containing_type_die_offset = DW_INVALID_OFFSET;
6957 const size_t num_attributes = die->GetAttributes(this, dwarf_cu, NULL, attributes);
6959 if (num_attributes > 0) {
6961 for (i=0; i<num_attributes; ++i)
6963 attr = attributes.AttributeAtIndex(i);
6964 DWARFFormValue form_value;
6965 if (attributes.ExtractFormValueAtIndex(this, i, form_value))
6970 type_die_offset = form_value.Reference(dwarf_cu); break;
6971 case DW_AT_containing_type:
6972 containing_type_die_offset = form_value.Reference(dwarf_cu); break;
6977 Type *pointee_type = ResolveTypeUID(type_die_offset);
6978 Type *class_type = ResolveTypeUID(containing_type_die_offset);
6980 ClangASTType pointee_clang_type = pointee_type->GetClangForwardType();
6981 ClangASTType class_clang_type = class_type->GetClangLayoutType();
6983 clang_type = pointee_clang_type.CreateMemberPointerType(class_clang_type);
6985 byte_size = clang_type.GetByteSize();
6987 type_sp.reset( new Type (MakeUserID(die->GetOffset()),
6989 type_name_const_str,
6993 Type::eEncodingIsUID,
6996 Type::eResolveStateForward));
7002 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",
7005 DW_TAG_value_to_name(tag));
7011 const DWARFDebugInfoEntry *sc_parent_die = GetParentSymbolContextDIE(die);
7012 dw_tag_t sc_parent_tag = sc_parent_die ? sc_parent_die->Tag() : 0;
7014 SymbolContextScope * symbol_context_scope = NULL;
7015 if (sc_parent_tag == DW_TAG_compile_unit)
7017 symbol_context_scope = sc.comp_unit;
7019 else if (sc.function != NULL)
7021 symbol_context_scope = sc.function->GetBlock(true).FindBlockByID(MakeUserID(sc_parent_die->GetOffset()));
7022 if (symbol_context_scope == NULL)
7023 symbol_context_scope = sc.function;
7026 if (symbol_context_scope != NULL)
7028 type_sp->SetSymbolContextScope(symbol_context_scope);
7031 // We are ready to put this type into the uniqued list up at the module level
7032 type_list->Insert (type_sp);
7034 m_die_to_type[die] = type_sp.get();
7037 else if (type_ptr != DIE_IS_BEING_PARSED)
7039 type_sp = type_ptr->shared_from_this();
7046 SymbolFileDWARF::ParseTypes
7048 const SymbolContext& sc,
7049 DWARFCompileUnit* dwarf_cu,
7050 const DWARFDebugInfoEntry *die,
7051 bool parse_siblings,
7055 size_t types_added = 0;
7058 bool type_is_new = false;
7059 if (ParseType(sc, dwarf_cu, die, &type_is_new).get())
7065 if (parse_children && die->HasChildren())
7067 if (die->Tag() == DW_TAG_subprogram)
7069 SymbolContext child_sc(sc);
7070 child_sc.function = sc.comp_unit->FindFunctionByUID(MakeUserID(die->GetOffset())).get();
7071 types_added += ParseTypes(child_sc, dwarf_cu, die->GetFirstChild(), true, true);
7074 types_added += ParseTypes(sc, dwarf_cu, die->GetFirstChild(), true, true);
7078 die = die->GetSibling();
7087 SymbolFileDWARF::ParseFunctionBlocks (const SymbolContext &sc)
7089 assert(sc.comp_unit && sc.function);
7090 size_t functions_added = 0;
7091 DWARFCompileUnit* dwarf_cu = GetDWARFCompileUnit(sc.comp_unit);
7094 dw_offset_t function_die_offset = sc.function->GetID();
7095 const DWARFDebugInfoEntry *function_die = dwarf_cu->GetDIEPtr(function_die_offset);
7098 ParseFunctionBlocks(sc, &sc.function->GetBlock (false), dwarf_cu, function_die, LLDB_INVALID_ADDRESS, 0);
7102 return functions_added;
7107 SymbolFileDWARF::ParseTypes (const SymbolContext &sc)
7109 // At least a compile unit must be valid
7110 assert(sc.comp_unit);
7111 size_t types_added = 0;
7112 DWARFCompileUnit* dwarf_cu = GetDWARFCompileUnit(sc.comp_unit);
7117 dw_offset_t function_die_offset = sc.function->GetID();
7118 const DWARFDebugInfoEntry *func_die = dwarf_cu->GetDIEPtr(function_die_offset);
7119 if (func_die && func_die->HasChildren())
7121 types_added = ParseTypes(sc, dwarf_cu, func_die->GetFirstChild(), true, true);
7126 const DWARFDebugInfoEntry *dwarf_cu_die = dwarf_cu->DIE();
7127 if (dwarf_cu_die && dwarf_cu_die->HasChildren())
7129 types_added = ParseTypes(sc, dwarf_cu, dwarf_cu_die->GetFirstChild(), true, true);
7138 SymbolFileDWARF::ParseVariablesForContext (const SymbolContext& sc)
7140 if (sc.comp_unit != NULL)
7142 DWARFDebugInfo* info = DebugInfo();
7148 DWARFCompileUnit* dwarf_cu = info->GetCompileUnitContainingDIE(sc.function->GetID()).get();
7150 if (dwarf_cu == NULL)
7153 const DWARFDebugInfoEntry *function_die = dwarf_cu->GetDIEPtr(sc.function->GetID());
7155 dw_addr_t func_lo_pc = function_die->GetAttributeValueAsUnsigned (this, dwarf_cu, DW_AT_low_pc, LLDB_INVALID_ADDRESS);
7156 if (func_lo_pc != LLDB_INVALID_ADDRESS)
7158 const size_t num_variables = ParseVariables(sc, dwarf_cu, func_lo_pc, function_die->GetFirstChild(), true, true);
7160 // Let all blocks know they have parse all their variables
7161 sc.function->GetBlock (false).SetDidParseVariables (true, true);
7162 return num_variables;
7165 else if (sc.comp_unit)
7167 DWARFCompileUnit* dwarf_cu = info->GetCompileUnit(sc.comp_unit->GetID()).get();
7169 if (dwarf_cu == NULL)
7172 uint32_t vars_added = 0;
7173 VariableListSP variables (sc.comp_unit->GetVariableList(false));
7175 if (variables.get() == NULL)
7177 variables.reset(new VariableList());
7178 sc.comp_unit->SetVariableList(variables);
7180 DWARFCompileUnit* match_dwarf_cu = NULL;
7181 const DWARFDebugInfoEntry* die = NULL;
7182 DIEArray die_offsets;
7183 if (m_using_apple_tables)
7185 if (m_apple_names_ap.get())
7187 DWARFMappedHash::DIEInfoArray hash_data_array;
7188 if (m_apple_names_ap->AppendAllDIEsInRange (dwarf_cu->GetOffset(),
7189 dwarf_cu->GetNextCompileUnitOffset(),
7192 DWARFMappedHash::ExtractDIEArray (hash_data_array, die_offsets);
7198 // Index if we already haven't to make sure the compile units
7199 // get indexed and make their global DIE index list
7203 m_global_index.FindAllEntriesForCompileUnit (dwarf_cu->GetOffset(),
7204 dwarf_cu->GetNextCompileUnitOffset(),
7208 const size_t num_matches = die_offsets.size();
7211 DWARFDebugInfo* debug_info = DebugInfo();
7212 for (size_t i=0; i<num_matches; ++i)
7214 const dw_offset_t die_offset = die_offsets[i];
7215 die = debug_info->GetDIEPtrWithCompileUnitHint (die_offset, &match_dwarf_cu);
7218 VariableSP var_sp (ParseVariableDIE(sc, dwarf_cu, die, LLDB_INVALID_ADDRESS));
7221 variables->AddVariableIfUnique (var_sp);
7227 if (m_using_apple_tables)
7229 GetObjectFile()->GetModule()->ReportErrorIfModifyDetected ("the DWARF debug information has been modified (.apple_names accelerator table had bad die 0x%8.8x)\n", die_offset);
7244 SymbolFileDWARF::ParseVariableDIE
7246 const SymbolContext& sc,
7247 DWARFCompileUnit* dwarf_cu,
7248 const DWARFDebugInfoEntry *die,
7249 const lldb::addr_t func_low_pc
7253 VariableSP var_sp (m_die_to_variable_sp[die]);
7255 return var_sp; // Already been parsed!
7257 const dw_tag_t tag = die->Tag();
7259 if ((tag == DW_TAG_variable) ||
7260 (tag == DW_TAG_constant) ||
7261 (tag == DW_TAG_formal_parameter && sc.function))
7263 DWARFDebugInfoEntry::Attributes attributes;
7264 const size_t num_attributes = die->GetAttributes(this, dwarf_cu, NULL, attributes);
7265 if (num_attributes > 0)
7267 const char *name = NULL;
7268 const char *mangled = NULL;
7271 lldb::user_id_t type_uid = LLDB_INVALID_UID;
7272 DWARFExpression location;
7273 bool is_external = false;
7274 bool is_artificial = false;
7275 bool location_is_const_value_data = false;
7276 bool has_explicit_location = false;
7277 //AccessType accessibility = eAccessNone;
7279 for (i=0; i<num_attributes; ++i)
7281 dw_attr_t attr = attributes.AttributeAtIndex(i);
7282 DWARFFormValue form_value;
7283 if (attributes.ExtractFormValueAtIndex(this, i, form_value))
7287 case DW_AT_decl_file: decl.SetFile(sc.comp_unit->GetSupportFiles().GetFileSpecAtIndex(form_value.Unsigned())); break;
7288 case DW_AT_decl_line: decl.SetLine(form_value.Unsigned()); break;
7289 case DW_AT_decl_column: decl.SetColumn(form_value.Unsigned()); break;
7290 case DW_AT_name: name = form_value.AsCString(&get_debug_str_data()); break;
7291 case DW_AT_linkage_name:
7292 case DW_AT_MIPS_linkage_name: mangled = form_value.AsCString(&get_debug_str_data()); break;
7293 case DW_AT_type: type_uid = form_value.Reference(dwarf_cu); break;
7294 case DW_AT_external: is_external = form_value.Boolean(); break;
7295 case DW_AT_const_value:
7296 // If we have already found a DW_AT_location attribute, ignore this attribute.
7297 if (!has_explicit_location)
7299 location_is_const_value_data = true;
7300 // The constant value will be either a block, a data value or a string.
7301 const DataExtractor& debug_info_data = get_debug_info_data();
7302 if (DWARFFormValue::IsBlockForm(form_value.Form()))
7304 // Retrieve the value as a block expression.
7305 uint32_t block_offset = form_value.BlockData() - debug_info_data.GetDataStart();
7306 uint32_t block_length = form_value.Unsigned();
7307 location.CopyOpcodeData(debug_info_data, block_offset, block_length);
7309 else if (DWARFFormValue::IsDataForm(form_value.Form()))
7311 // Retrieve the value as a data expression.
7312 const uint8_t *fixed_form_sizes = DWARFFormValue::GetFixedFormSizesForAddressSize (dwarf_cu->GetAddressByteSize());
7313 uint32_t data_offset = attributes.DIEOffsetAtIndex(i);
7314 uint32_t data_length = fixed_form_sizes[form_value.Form()];
7315 location.CopyOpcodeData(debug_info_data, data_offset, data_length);
7319 // Retrieve the value as a string expression.
7320 if (form_value.Form() == DW_FORM_strp)
7322 const uint8_t *fixed_form_sizes = DWARFFormValue::GetFixedFormSizesForAddressSize (dwarf_cu->GetAddressByteSize());
7323 uint32_t data_offset = attributes.DIEOffsetAtIndex(i);
7324 uint32_t data_length = fixed_form_sizes[form_value.Form()];
7325 location.CopyOpcodeData(debug_info_data, data_offset, data_length);
7329 const char *str = form_value.AsCString(&debug_info_data);
7330 uint32_t string_offset = str - (const char *)debug_info_data.GetDataStart();
7331 uint32_t string_length = strlen(str) + 1;
7332 location.CopyOpcodeData(debug_info_data, string_offset, string_length);
7337 case DW_AT_location:
7339 location_is_const_value_data = false;
7340 has_explicit_location = true;
7341 if (form_value.BlockData())
7343 const DataExtractor& debug_info_data = get_debug_info_data();
7345 uint32_t block_offset = form_value.BlockData() - debug_info_data.GetDataStart();
7346 uint32_t block_length = form_value.Unsigned();
7347 location.CopyOpcodeData(get_debug_info_data(), block_offset, block_length);
7351 const DataExtractor& debug_loc_data = get_debug_loc_data();
7352 const dw_offset_t debug_loc_offset = form_value.Unsigned();
7354 size_t loc_list_length = DWARFLocationList::Size(debug_loc_data, debug_loc_offset);
7355 if (loc_list_length > 0)
7357 location.CopyOpcodeData(debug_loc_data, debug_loc_offset, loc_list_length);
7358 assert (func_low_pc != LLDB_INVALID_ADDRESS);
7359 location.SetLocationListSlide (func_low_pc - dwarf_cu->GetBaseAddress());
7365 case DW_AT_artificial: is_artificial = form_value.Boolean(); break;
7366 case DW_AT_accessibility: break; //accessibility = DW_ACCESS_to_AccessType(form_value.Unsigned()); break;
7367 case DW_AT_declaration:
7368 case DW_AT_description:
7369 case DW_AT_endianity:
7371 case DW_AT_start_scope:
7372 case DW_AT_visibility:
7374 case DW_AT_abstract_origin:
7376 case DW_AT_specification:
7382 ValueType scope = eValueTypeInvalid;
7384 const DWARFDebugInfoEntry *sc_parent_die = GetParentSymbolContextDIE(die);
7385 dw_tag_t parent_tag = sc_parent_die ? sc_parent_die->Tag() : 0;
7386 SymbolContextScope * symbol_context_scope = NULL;
7388 // DWARF doesn't specify if a DW_TAG_variable is a local, global
7389 // or static variable, so we have to do a little digging by
7390 // looking at the location of a varaible to see if it contains
7391 // a DW_OP_addr opcode _somewhere_ in the definition. I say
7392 // somewhere because clang likes to combine small global variables
7393 // into the same symbol and have locations like:
7394 // DW_OP_addr(0x1000), DW_OP_constu(2), DW_OP_plus
7395 // So if we don't have a DW_TAG_formal_parameter, we can look at
7396 // the location to see if it contains a DW_OP_addr opcode, and
7397 // then we can correctly classify our variables.
7398 if (tag == DW_TAG_formal_parameter)
7399 scope = eValueTypeVariableArgument;
7402 bool op_error = false;
7403 // Check if the location has a DW_OP_addr with any address value...
7404 lldb::addr_t location_DW_OP_addr = LLDB_INVALID_ADDRESS;
7405 if (!location_is_const_value_data)
7407 location_DW_OP_addr = location.GetLocation_DW_OP_addr (0, op_error);
7411 location.DumpLocationForAddress (&strm, eDescriptionLevelFull, 0, 0, NULL);
7412 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());
7416 if (location_DW_OP_addr != LLDB_INVALID_ADDRESS)
7419 scope = eValueTypeVariableGlobal;
7421 scope = eValueTypeVariableStatic;
7424 SymbolFileDWARFDebugMap *debug_map_symfile = GetDebugMapSymfile ();
7426 if (debug_map_symfile)
7428 // When leaving the DWARF in the .o files on darwin,
7429 // when we have a global variable that wasn't initialized,
7430 // the .o file might not have allocated a virtual
7431 // address for the global variable. In this case it will
7432 // have created a symbol for the global variable
7433 // that is undefined/data and external and the value will
7434 // be the byte size of the variable. When we do the
7435 // address map in SymbolFileDWARFDebugMap we rely on
7436 // having an address, we need to do some magic here
7437 // so we can get the correct address for our global
7438 // variable. The address for all of these entries
7439 // will be zero, and there will be an undefined symbol
7440 // in this object file, and the executable will have
7441 // a matching symbol with a good address. So here we
7442 // dig up the correct address and replace it in the
7443 // location for the variable, and set the variable's
7444 // symbol context scope to be that of the main executable
7445 // so the file address will resolve correctly.
7446 bool linked_oso_file_addr = false;
7447 if (is_external && location_DW_OP_addr == 0)
7449 // we have a possible uninitialized extern global
7450 ConstString const_name(mangled ? mangled : name);
7451 ObjectFile *debug_map_objfile = debug_map_symfile->GetObjectFile();
7452 if (debug_map_objfile)
7454 Symtab *debug_map_symtab = debug_map_objfile->GetSymtab();
7455 if (debug_map_symtab)
7457 Symbol *exe_symbol = debug_map_symtab->FindFirstSymbolWithNameAndType (const_name,
7460 Symtab::eVisibilityExtern);
7463 if (exe_symbol->ValueIsAddress())
7465 const addr_t exe_file_addr = exe_symbol->GetAddress().GetFileAddress();
7466 if (exe_file_addr != LLDB_INVALID_ADDRESS)
7468 if (location.Update_DW_OP_addr (exe_file_addr))
7470 linked_oso_file_addr = true;
7471 symbol_context_scope = exe_symbol;
7480 if (!linked_oso_file_addr)
7482 // The DW_OP_addr is not zero, but it contains a .o file address which
7483 // needs to be linked up correctly.
7484 const lldb::addr_t exe_file_addr = debug_map_symfile->LinkOSOFileAddress(this, location_DW_OP_addr);
7485 if (exe_file_addr != LLDB_INVALID_ADDRESS)
7487 // Update the file address for this variable
7488 location.Update_DW_OP_addr (exe_file_addr);
7492 // Variable didn't make it into the final executable
7500 scope = eValueTypeVariableLocal;
7504 if (symbol_context_scope == NULL)
7508 case DW_TAG_subprogram:
7509 case DW_TAG_inlined_subroutine:
7510 case DW_TAG_lexical_block:
7513 symbol_context_scope = sc.function->GetBlock(true).FindBlockByID(MakeUserID(sc_parent_die->GetOffset()));
7514 if (symbol_context_scope == NULL)
7515 symbol_context_scope = sc.function;
7520 symbol_context_scope = sc.comp_unit;
7525 if (symbol_context_scope)
7527 var_sp.reset (new Variable (MakeUserID(die->GetOffset()),
7530 SymbolFileTypeSP (new SymbolFileType(*this, type_uid)),
7532 symbol_context_scope,
7538 var_sp->SetLocationIsConstantValueData (location_is_const_value_data);
7542 // Not ready to parse this variable yet. It might be a global
7543 // or static variable that is in a function scope and the function
7544 // in the symbol context wasn't filled in yet
7548 // Cache var_sp even if NULL (the variable was just a specification or
7549 // was missing vital information to be able to be displayed in the debugger
7550 // (missing location due to optimization, etc)) so we don't re-parse
7551 // this DIE over and over later...
7552 m_die_to_variable_sp[die] = var_sp;
7558 const DWARFDebugInfoEntry *
7559 SymbolFileDWARF::FindBlockContainingSpecification (dw_offset_t func_die_offset,
7560 dw_offset_t spec_block_die_offset,
7561 DWARFCompileUnit **result_die_cu_handle)
7563 // Give the concrete function die specified by "func_die_offset", find the
7564 // concrete block whose DW_AT_specification or DW_AT_abstract_origin points
7565 // to "spec_block_die_offset"
7566 DWARFDebugInfo* info = DebugInfo();
7568 const DWARFDebugInfoEntry *die = info->GetDIEPtrWithCompileUnitHint(func_die_offset, result_die_cu_handle);
7571 assert (*result_die_cu_handle);
7572 return FindBlockContainingSpecification (*result_die_cu_handle, die, spec_block_die_offset, result_die_cu_handle);
7578 const DWARFDebugInfoEntry *
7579 SymbolFileDWARF::FindBlockContainingSpecification(DWARFCompileUnit* dwarf_cu,
7580 const DWARFDebugInfoEntry *die,
7581 dw_offset_t spec_block_die_offset,
7582 DWARFCompileUnit **result_die_cu_handle)
7588 case DW_TAG_subprogram:
7589 case DW_TAG_inlined_subroutine:
7590 case DW_TAG_lexical_block:
7592 if (die->GetAttributeValueAsReference (this, dwarf_cu, DW_AT_specification, DW_INVALID_OFFSET) == spec_block_die_offset)
7594 *result_die_cu_handle = dwarf_cu;
7598 if (die->GetAttributeValueAsReference (this, dwarf_cu, DW_AT_abstract_origin, DW_INVALID_OFFSET) == spec_block_die_offset)
7600 *result_die_cu_handle = dwarf_cu;
7607 // Give the concrete function die specified by "func_die_offset", find the
7608 // concrete block whose DW_AT_specification or DW_AT_abstract_origin points
7609 // to "spec_block_die_offset"
7610 for (const DWARFDebugInfoEntry *child_die = die->GetFirstChild(); child_die != NULL; child_die = child_die->GetSibling())
7612 const DWARFDebugInfoEntry *result_die = FindBlockContainingSpecification (dwarf_cu,
7614 spec_block_die_offset,
7615 result_die_cu_handle);
7621 *result_die_cu_handle = NULL;
7626 SymbolFileDWARF::ParseVariables
7628 const SymbolContext& sc,
7629 DWARFCompileUnit* dwarf_cu,
7630 const lldb::addr_t func_low_pc,
7631 const DWARFDebugInfoEntry *orig_die,
7632 bool parse_siblings,
7633 bool parse_children,
7634 VariableList* cc_variable_list
7637 if (orig_die == NULL)
7640 VariableListSP variable_list_sp;
7642 size_t vars_added = 0;
7643 const DWARFDebugInfoEntry *die = orig_die;
7646 dw_tag_t tag = die->Tag();
7648 // Check to see if we have already parsed this variable or constant?
7649 if (m_die_to_variable_sp[die])
7651 if (cc_variable_list)
7652 cc_variable_list->AddVariableIfUnique (m_die_to_variable_sp[die]);
7656 // We haven't already parsed it, lets do that now.
7657 if ((tag == DW_TAG_variable) ||
7658 (tag == DW_TAG_constant) ||
7659 (tag == DW_TAG_formal_parameter && sc.function))
7661 if (variable_list_sp.get() == NULL)
7663 const DWARFDebugInfoEntry *sc_parent_die = GetParentSymbolContextDIE(orig_die);
7664 dw_tag_t parent_tag = sc_parent_die ? sc_parent_die->Tag() : 0;
7667 case DW_TAG_compile_unit:
7668 if (sc.comp_unit != NULL)
7670 variable_list_sp = sc.comp_unit->GetVariableList(false);
7671 if (variable_list_sp.get() == NULL)
7673 variable_list_sp.reset(new VariableList());
7674 sc.comp_unit->SetVariableList(variable_list_sp);
7679 GetObjectFile()->GetModule()->ReportError ("parent 0x%8.8" PRIx64 " %s with no valid compile unit in symbol context for 0x%8.8" PRIx64 " %s.\n",
7680 MakeUserID(sc_parent_die->GetOffset()),
7681 DW_TAG_value_to_name (parent_tag),
7682 MakeUserID(orig_die->GetOffset()),
7683 DW_TAG_value_to_name (orig_die->Tag()));
7687 case DW_TAG_subprogram:
7688 case DW_TAG_inlined_subroutine:
7689 case DW_TAG_lexical_block:
7690 if (sc.function != NULL)
7692 // Check to see if we already have parsed the variables for the given scope
7694 Block *block = sc.function->GetBlock(true).FindBlockByID(MakeUserID(sc_parent_die->GetOffset()));
7697 // This must be a specification or abstract origin with
7698 // a concrete block couterpart in the current function. We need
7699 // to find the concrete block so we can correctly add the
7701 DWARFCompileUnit *concrete_block_die_cu = dwarf_cu;
7702 const DWARFDebugInfoEntry *concrete_block_die = FindBlockContainingSpecification (sc.function->GetID(),
7703 sc_parent_die->GetOffset(),
7704 &concrete_block_die_cu);
7705 if (concrete_block_die)
7706 block = sc.function->GetBlock(true).FindBlockByID(MakeUserID(concrete_block_die->GetOffset()));
7711 const bool can_create = false;
7712 variable_list_sp = block->GetBlockVariableList (can_create);
7713 if (variable_list_sp.get() == NULL)
7715 variable_list_sp.reset(new VariableList());
7716 block->SetVariableList(variable_list_sp);
7723 GetObjectFile()->GetModule()->ReportError ("didn't find appropriate parent DIE for variable list for 0x%8.8" PRIx64 " %s.\n",
7724 MakeUserID(orig_die->GetOffset()),
7725 DW_TAG_value_to_name (orig_die->Tag()));
7730 if (variable_list_sp)
7732 VariableSP var_sp (ParseVariableDIE(sc, dwarf_cu, die, func_low_pc));
7735 variable_list_sp->AddVariableIfUnique (var_sp);
7736 if (cc_variable_list)
7737 cc_variable_list->AddVariableIfUnique (var_sp);
7744 bool skip_children = (sc.function == NULL && tag == DW_TAG_subprogram);
7746 if (!skip_children && parse_children && die->HasChildren())
7748 vars_added += ParseVariables(sc, dwarf_cu, func_low_pc, die->GetFirstChild(), true, true, cc_variable_list);
7752 die = die->GetSibling();
7759 //------------------------------------------------------------------
7760 // PluginInterface protocol
7761 //------------------------------------------------------------------
7763 SymbolFileDWARF::GetPluginName()
7765 return GetPluginNameStatic();
7769 SymbolFileDWARF::GetPluginVersion()
7775 SymbolFileDWARF::CompleteTagDecl (void *baton, clang::TagDecl *decl)
7777 SymbolFileDWARF *symbol_file_dwarf = (SymbolFileDWARF *)baton;
7778 ClangASTType clang_type = symbol_file_dwarf->GetClangASTContext().GetTypeForDecl (decl);
7780 symbol_file_dwarf->ResolveClangOpaqueTypeDefinition (clang_type);
7784 SymbolFileDWARF::CompleteObjCInterfaceDecl (void *baton, clang::ObjCInterfaceDecl *decl)
7786 SymbolFileDWARF *symbol_file_dwarf = (SymbolFileDWARF *)baton;
7787 ClangASTType clang_type = symbol_file_dwarf->GetClangASTContext().GetTypeForDecl (decl);
7789 symbol_file_dwarf->ResolveClangOpaqueTypeDefinition (clang_type);
7793 SymbolFileDWARF::DumpIndexes ()
7795 StreamFile s(stdout, false);
7797 s.Printf ("DWARF index for (%s) '%s':",
7798 GetObjectFile()->GetModule()->GetArchitecture().GetArchitectureName(),
7799 GetObjectFile()->GetFileSpec().GetPath().c_str());
7800 s.Printf("\nFunction basenames:\n"); m_function_basename_index.Dump (&s);
7801 s.Printf("\nFunction fullnames:\n"); m_function_fullname_index.Dump (&s);
7802 s.Printf("\nFunction methods:\n"); m_function_method_index.Dump (&s);
7803 s.Printf("\nFunction selectors:\n"); m_function_selector_index.Dump (&s);
7804 s.Printf("\nObjective C class selectors:\n"); m_objc_class_selectors_index.Dump (&s);
7805 s.Printf("\nGlobals and statics:\n"); m_global_index.Dump (&s);
7806 s.Printf("\nTypes:\n"); m_type_index.Dump (&s);
7807 s.Printf("\nNamepaces:\n"); m_namespace_index.Dump (&s);
7811 SymbolFileDWARF::SearchDeclContext (const clang::DeclContext *decl_context,
7813 llvm::SmallVectorImpl <clang::NamedDecl *> *results)
7815 DeclContextToDIEMap::iterator iter = m_decl_ctx_to_die.find(decl_context);
7817 if (iter == m_decl_ctx_to_die.end())
7820 for (DIEPointerSet::iterator pos = iter->second.begin(), end = iter->second.end(); pos != end; ++pos)
7822 const DWARFDebugInfoEntry *context_die = *pos;
7827 DWARFDebugInfo* info = DebugInfo();
7829 DIEArray die_offsets;
7831 DWARFCompileUnit* dwarf_cu = NULL;
7832 const DWARFDebugInfoEntry* die = NULL;
7834 if (m_using_apple_tables)
7836 if (m_apple_types_ap.get())
7837 m_apple_types_ap->FindByName (name, die_offsets);
7844 m_type_index.Find (ConstString(name), die_offsets);
7847 const size_t num_matches = die_offsets.size();
7851 for (size_t i = 0; i < num_matches; ++i)
7853 const dw_offset_t die_offset = die_offsets[i];
7854 die = info->GetDIEPtrWithCompileUnitHint (die_offset, &dwarf_cu);
7856 if (die->GetParent() != context_die)
7859 Type *matching_type = ResolveType (dwarf_cu, die);
7861 clang::QualType qual_type = matching_type->GetClangForwardType().GetQualType();
7863 if (const clang::TagType *tag_type = llvm::dyn_cast<clang::TagType>(qual_type.getTypePtr()))
7865 clang::TagDecl *tag_decl = tag_type->getDecl();
7866 results->push_back(tag_decl);
7868 else if (const clang::TypedefType *typedef_type = llvm::dyn_cast<clang::TypedefType>(qual_type.getTypePtr()))
7870 clang::TypedefNameDecl *typedef_decl = typedef_type->getDecl();
7871 results->push_back(typedef_decl);
7879 SymbolFileDWARF::FindExternalVisibleDeclsByName (void *baton,
7880 const clang::DeclContext *decl_context,
7881 clang::DeclarationName decl_name,
7882 llvm::SmallVectorImpl <clang::NamedDecl *> *results)
7885 switch (decl_context->getDeclKind())
7887 case clang::Decl::Namespace:
7888 case clang::Decl::TranslationUnit:
7890 SymbolFileDWARF *symbol_file_dwarf = (SymbolFileDWARF *)baton;
7891 symbol_file_dwarf->SearchDeclContext (decl_context, decl_name.getAsString().c_str(), results);
7900 SymbolFileDWARF::LayoutRecordType (void *baton,
7901 const clang::RecordDecl *record_decl,
7903 uint64_t &alignment,
7904 llvm::DenseMap <const clang::FieldDecl *, uint64_t> &field_offsets,
7905 llvm::DenseMap <const clang::CXXRecordDecl *, clang::CharUnits> &base_offsets,
7906 llvm::DenseMap <const clang::CXXRecordDecl *, clang::CharUnits> &vbase_offsets)
7908 SymbolFileDWARF *symbol_file_dwarf = (SymbolFileDWARF *)baton;
7909 return symbol_file_dwarf->LayoutRecordType (record_decl, size, alignment, field_offsets, base_offsets, vbase_offsets);
7914 SymbolFileDWARF::LayoutRecordType (const clang::RecordDecl *record_decl,
7916 uint64_t &alignment,
7917 llvm::DenseMap <const clang::FieldDecl *, uint64_t> &field_offsets,
7918 llvm::DenseMap <const clang::CXXRecordDecl *, clang::CharUnits> &base_offsets,
7919 llvm::DenseMap <const clang::CXXRecordDecl *, clang::CharUnits> &vbase_offsets)
7921 Log *log (LogChannelDWARF::GetLogIfAll(DWARF_LOG_DEBUG_INFO));
7922 RecordDeclToLayoutMap::iterator pos = m_record_decl_to_layout_map.find (record_decl);
7923 bool success = false;
7924 base_offsets.clear();
7925 vbase_offsets.clear();
7926 if (pos != m_record_decl_to_layout_map.end())
7928 bit_size = pos->second.bit_size;
7929 alignment = pos->second.alignment;
7930 field_offsets.swap(pos->second.field_offsets);
7931 base_offsets.swap (pos->second.base_offsets);
7932 vbase_offsets.swap (pos->second.vbase_offsets);
7933 m_record_decl_to_layout_map.erase(pos);
7940 field_offsets.clear();
7944 GetObjectFile()->GetModule()->LogMessage (log,
7945 "SymbolFileDWARF::LayoutRecordType (record_decl = %p, bit_size = %" PRIu64 ", alignment = %" PRIu64 ", field_offsets[%u],base_offsets[%u], vbase_offsets[%u]) success = %i",
7949 (uint32_t)field_offsets.size(),
7950 (uint32_t)base_offsets.size(),
7951 (uint32_t)vbase_offsets.size(),
7957 SymbolFileDWARFDebugMap *
7958 SymbolFileDWARF::GetDebugMapSymfile ()
7960 if (m_debug_map_symfile == NULL && !m_debug_map_module_wp.expired())
7962 lldb::ModuleSP module_sp (m_debug_map_module_wp.lock());
7965 SymbolVendor *sym_vendor = module_sp->GetSymbolVendor();
7967 m_debug_map_symfile = (SymbolFileDWARFDebugMap *)sym_vendor->GetSymbolFile();
7970 return m_debug_map_symfile;