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Differential D13942 Diff 38109 lldb/trunk/source/Plugins/SymbolFile/DWARF/SymbolFileDWARF.cpp

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lldb/trunk/source/Plugins/SymbolFile/DWARF/SymbolFileDWARF.cpp

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} }
SymbolFileDWARF::SymbolFileDWARF(ObjectFile* objfile) : SymbolFileDWARF::SymbolFileDWARF(ObjectFile* objfile) :
SymbolFile (objfile), SymbolFile (objfile),
UserID (0), // Used by SymbolFileDWARFDebugMap to when this class parses .o files to contain the .o file index/ID UserID (0), // Used by SymbolFileDWARFDebugMap to when this class parses .o files to contain the .o file index/ID
m_debug_map_module_wp (), m_debug_map_module_wp (),
m_debug_map_symfile (NULL), m_debug_map_symfile (NULL),
m_flags(),
m_data_debug_abbrev (), m_data_debug_abbrev (),
m_data_debug_aranges (), m_data_debug_aranges (),
m_data_debug_frame (), m_data_debug_frame (),
m_data_debug_info (), m_data_debug_info (),
m_data_debug_line (), m_data_debug_line (),
m_data_debug_loc (), m_data_debug_loc (),
m_data_debug_ranges (), m_data_debug_ranges (),
m_data_debug_str (), m_data_debug_str (),
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void void
SymbolFileDWARF::InitializeObject() SymbolFileDWARF::InitializeObject()
{ {
ModuleSP module_sp (m_obj_file->GetModule()); ModuleSP module_sp (m_obj_file->GetModule());
if (module_sp) if (module_sp)
{ {
const SectionList *section_list = module_sp->GetSectionList(); const SectionList *section_list = module_sp->GetSectionList();
const Section* section = section_list->FindSectionByName(GetDWARFMachOSegmentName ()).get(); const Section* section = section_list->FindSectionByName(GetDWARFMachOSegmentName ()).get();
// Memory map the DWARF mach-o segment so we have everything mmap'ed // Memory map the DWARF mach-o segment so we have everything mmap'ed
// to keep our heap memory usage down. // to keep our heap memory usage down.
if (section) if (section)
m_obj_file->MemoryMapSectionData(section, m_dwarf_data); m_obj_file->MemoryMapSectionData(section, m_dwarf_data);
} }
get_apple_names_data(); get_apple_names_data();
if (m_data_apple_names.GetByteSize() > 0) if (m_data_apple_names.m_data.GetByteSize() > 0)
{ {
m_apple_names_ap.reset (new DWARFMappedHash::MemoryTable (m_data_apple_names, get_debug_str_data(), ".apple_names")); m_apple_names_ap.reset (new DWARFMappedHash::MemoryTable (m_data_apple_names.m_data,
get_debug_str_data(),
".apple_names"));
if (m_apple_names_ap->IsValid()) if (m_apple_names_ap->IsValid())
m_using_apple_tables = true; m_using_apple_tables = true;
else else
m_apple_names_ap.reset(); m_apple_names_ap.reset();
} }
get_apple_types_data(); get_apple_types_data();
if (m_data_apple_types.GetByteSize() > 0) if (m_data_apple_types.m_data.GetByteSize() > 0)
{ {
m_apple_types_ap.reset (new DWARFMappedHash::MemoryTable (m_data_apple_types, get_debug_str_data(), ".apple_types")); m_apple_types_ap.reset (new DWARFMappedHash::MemoryTable (m_data_apple_types.m_data,
get_debug_str_data(),
".apple_types"));
if (m_apple_types_ap->IsValid()) if (m_apple_types_ap->IsValid())
m_using_apple_tables = true; m_using_apple_tables = true;
else else
m_apple_types_ap.reset(); m_apple_types_ap.reset();
} }
get_apple_namespaces_data(); get_apple_namespaces_data();
if (m_data_apple_namespaces.GetByteSize() > 0) if (m_data_apple_namespaces.m_data.GetByteSize() > 0)
{ {
m_apple_namespaces_ap.reset (new DWARFMappedHash::MemoryTable (m_data_apple_namespaces, get_debug_str_data(), ".apple_namespaces")); m_apple_namespaces_ap.reset (new DWARFMappedHash::MemoryTable (m_data_apple_namespaces.m_data,
get_debug_str_data(),
".apple_namespaces"));
if (m_apple_namespaces_ap->IsValid()) if (m_apple_namespaces_ap->IsValid())
m_using_apple_tables = true; m_using_apple_tables = true;
else else
m_apple_namespaces_ap.reset(); m_apple_namespaces_ap.reset();
} }
get_apple_objc_data(); get_apple_objc_data();
if (m_data_apple_objc.GetByteSize() > 0) if (m_data_apple_objc.m_data.GetByteSize() > 0)
{ {
m_apple_objc_ap.reset (new DWARFMappedHash::MemoryTable (m_data_apple_objc, get_debug_str_data(), ".apple_objc")); m_apple_objc_ap.reset (new DWARFMappedHash::MemoryTable (m_data_apple_objc.m_data,
get_debug_str_data(),
".apple_objc"));
if (m_apple_objc_ap->IsValid()) if (m_apple_objc_ap->IsValid())
m_using_apple_tables = true; m_using_apple_tables = true;
else else
m_apple_objc_ap.reset(); m_apple_objc_ap.reset();
} }
} }
bool bool
Show All 25 Lines if (m_obj_file != NULL)
section = section_list->FindSectionByType (eSectionTypeDWARFDebugInfo, true).get(); section = section_list->FindSectionByType (eSectionTypeDWARFDebugInfo, true).get();
if (section != NULL) if (section != NULL)
{ {
debug_info_file_size = section->GetFileSize(); debug_info_file_size = section->GetFileSize();
section = section_list->FindSectionByType (eSectionTypeDWARFDebugAbbrev, true).get(); section = section_list->FindSectionByType (eSectionTypeDWARFDebugAbbrev, true).get();
if (section) if (section)
debug_abbrev_file_size = section->GetFileSize(); debug_abbrev_file_size = section->GetFileSize();
else
m_flags.Set (flagsGotDebugAbbrevData);
section = section_list->FindSectionByType (eSectionTypeDWARFDebugAranges, true).get();
if (!section)
m_flags.Set (flagsGotDebugArangesData);
section = section_list->FindSectionByType (eSectionTypeDWARFDebugFrame, true).get();
if (!section)
m_flags.Set (flagsGotDebugFrameData);
section = section_list->FindSectionByType (eSectionTypeDWARFDebugLine, true).get(); section = section_list->FindSectionByType (eSectionTypeDWARFDebugLine, true).get();
if (section) if (section)
debug_line_file_size = section->GetFileSize(); debug_line_file_size = section->GetFileSize();
else
m_flags.Set (flagsGotDebugLineData);
section = section_list->FindSectionByType (eSectionTypeDWARFDebugLoc, true).get();
if (!section)
m_flags.Set (flagsGotDebugLocData);
section = section_list->FindSectionByType (eSectionTypeDWARFDebugMacInfo, true).get();
if (!section)
m_flags.Set (flagsGotDebugMacInfoData);
section = section_list->FindSectionByType (eSectionTypeDWARFDebugPubNames, true).get();
if (!section)
m_flags.Set (flagsGotDebugPubNamesData);
section = section_list->FindSectionByType (eSectionTypeDWARFDebugPubTypes, true).get();
if (!section)
m_flags.Set (flagsGotDebugPubTypesData);
section = section_list->FindSectionByType (eSectionTypeDWARFDebugRanges, true).get();
if (!section)
m_flags.Set (flagsGotDebugRangesData);
section = section_list->FindSectionByType (eSectionTypeDWARFDebugStr, true).get();
if (!section)
m_flags.Set (flagsGotDebugStrData);
} }
else else
{ {
const char *symfile_dir_cstr = m_obj_file->GetFileSpec().GetDirectory().GetCString(); const char *symfile_dir_cstr = m_obj_file->GetFileSpec().GetDirectory().GetCString();
if (symfile_dir_cstr) if (symfile_dir_cstr)
{ {
if (strcasestr(symfile_dir_cstr, ".dsym")) if (strcasestr(symfile_dir_cstr, ".dsym"))
{ {
Show All 18 Lines if (m_obj_file != NULL)
if (debug_line_file_size > 0) if (debug_line_file_size > 0)
abilities |= LineTables; abilities |= LineTables;
} }
return abilities; return abilities;
} }
const DWARFDataExtractor& const DWARFDataExtractor&
SymbolFileDWARF::GetCachedSectionData (uint32_t got_flag, SectionType sect_type, DWARFDataExtractor &data) SymbolFileDWARF::GetCachedSectionData (lldb::SectionType sect_type, DWARFDataSegment& data_segment)
{ {
if (m_flags.IsClear (got_flag)) std::call_once(data_segment.m_flag,
&SymbolFileDWARF::LoadSectionData,
this,
sect_type,
std::ref(data_segment.m_data));
return data_segment.m_data;
}
void
SymbolFileDWARF::LoadSectionData (lldb::SectionType sect_type, DWARFDataExtractor& data)
{ {
ModuleSP module_sp (m_obj_file->GetModule()); ModuleSP module_sp (m_obj_file->GetModule());
m_flags.Set (got_flag);
const SectionList *section_list = module_sp->GetSectionList(); const SectionList *section_list = module_sp->GetSectionList();
if (section_list) if (section_list)
{ {
SectionSP section_sp (section_list->FindSectionByType(sect_type, true)); SectionSP section_sp (section_list->FindSectionByType(sect_type, true));
if (section_sp) if (section_sp)
{ {
// See if we memory mapped the DWARF segment? // See if we memory mapped the DWARF segment?
if (m_dwarf_data.GetByteSize()) if (m_dwarf_data.GetByteSize())
{ {
data.SetData(m_dwarf_data, section_sp->GetOffset (), section_sp->GetFileSize()); data.SetData(m_dwarf_data, section_sp->GetOffset(), section_sp->GetFileSize());
} }
else else
{ {
if (m_obj_file->ReadSectionData (section_sp.get(), data) == 0) if (m_obj_file->ReadSectionData(section_sp.get(), data) == 0)
data.Clear(); data.Clear();
} }
} }
} }
} }
return data;
}
const DWARFDataExtractor& const DWARFDataExtractor&
SymbolFileDWARF::get_debug_abbrev_data() SymbolFileDWARF::get_debug_abbrev_data()
{ {
return GetCachedSectionData (flagsGotDebugAbbrevData, eSectionTypeDWARFDebugAbbrev, m_data_debug_abbrev); return GetCachedSectionData (eSectionTypeDWARFDebugAbbrev, m_data_debug_abbrev);
} }
const DWARFDataExtractor& const DWARFDataExtractor&
SymbolFileDWARF::get_debug_addr_data() SymbolFileDWARF::get_debug_addr_data()
{ {
return GetCachedSectionData (flagsGotDebugAddrData, eSectionTypeDWARFDebugAddr, m_data_debug_addr); return GetCachedSectionData (eSectionTypeDWARFDebugAddr, m_data_debug_addr);
} }
const DWARFDataExtractor& const DWARFDataExtractor&
SymbolFileDWARF::get_debug_aranges_data() SymbolFileDWARF::get_debug_aranges_data()
{ {
return GetCachedSectionData (flagsGotDebugArangesData, eSectionTypeDWARFDebugAranges, m_data_debug_aranges); return GetCachedSectionData (eSectionTypeDWARFDebugAranges, m_data_debug_aranges);
} }
const DWARFDataExtractor& const DWARFDataExtractor&
SymbolFileDWARF::get_debug_frame_data() SymbolFileDWARF::get_debug_frame_data()
{ {
return GetCachedSectionData (flagsGotDebugFrameData, eSectionTypeDWARFDebugFrame, m_data_debug_frame); return GetCachedSectionData (eSectionTypeDWARFDebugFrame, m_data_debug_frame);
} }
const DWARFDataExtractor& const DWARFDataExtractor&
SymbolFileDWARF::get_debug_info_data() SymbolFileDWARF::get_debug_info_data()
{ {
return GetCachedSectionData (flagsGotDebugInfoData, eSectionTypeDWARFDebugInfo, m_data_debug_info); return GetCachedSectionData (eSectionTypeDWARFDebugInfo, m_data_debug_info);
} }
const DWARFDataExtractor& const DWARFDataExtractor&
SymbolFileDWARF::get_debug_line_data() SymbolFileDWARF::get_debug_line_data()
{ {
return GetCachedSectionData (flagsGotDebugLineData, eSectionTypeDWARFDebugLine, m_data_debug_line); return GetCachedSectionData (eSectionTypeDWARFDebugLine, m_data_debug_line);
} }
const DWARFDataExtractor& const DWARFDataExtractor&
SymbolFileDWARF::get_debug_loc_data() SymbolFileDWARF::get_debug_loc_data()
{ {
return GetCachedSectionData (flagsGotDebugLocData, eSectionTypeDWARFDebugLoc, m_data_debug_loc); return GetCachedSectionData (eSectionTypeDWARFDebugLoc, m_data_debug_loc);
} }
const DWARFDataExtractor& const DWARFDataExtractor&
SymbolFileDWARF::get_debug_ranges_data() SymbolFileDWARF::get_debug_ranges_data()
{ {
return GetCachedSectionData (flagsGotDebugRangesData, eSectionTypeDWARFDebugRanges, m_data_debug_ranges); return GetCachedSectionData (eSectionTypeDWARFDebugRanges, m_data_debug_ranges);
} }
const DWARFDataExtractor& const DWARFDataExtractor&
SymbolFileDWARF::get_debug_str_data() SymbolFileDWARF::get_debug_str_data()
{ {
return GetCachedSectionData (flagsGotDebugStrData, eSectionTypeDWARFDebugStr, m_data_debug_str); return GetCachedSectionData (eSectionTypeDWARFDebugStr, m_data_debug_str);
} }
const DWARFDataExtractor& const DWARFDataExtractor&
SymbolFileDWARF::get_debug_str_offsets_data() SymbolFileDWARF::get_debug_str_offsets_data()
{ {
return GetCachedSectionData (flagsGotDebugStrOffsetsData, eSectionTypeDWARFDebugStrOffsets, m_data_debug_str_offsets); return GetCachedSectionData (eSectionTypeDWARFDebugStrOffsets, m_data_debug_str_offsets);
} }
const DWARFDataExtractor& const DWARFDataExtractor&
SymbolFileDWARF::get_apple_names_data() SymbolFileDWARF::get_apple_names_data()
{ {
return GetCachedSectionData (flagsGotAppleNamesData, eSectionTypeDWARFAppleNames, m_data_apple_names); return GetCachedSectionData (eSectionTypeDWARFAppleNames, m_data_apple_names);
} }
const DWARFDataExtractor& const DWARFDataExtractor&
SymbolFileDWARF::get_apple_types_data() SymbolFileDWARF::get_apple_types_data()
{ {
return GetCachedSectionData (flagsGotAppleTypesData, eSectionTypeDWARFAppleTypes, m_data_apple_types); return GetCachedSectionData (eSectionTypeDWARFAppleTypes, m_data_apple_types);
} }
const DWARFDataExtractor& const DWARFDataExtractor&
SymbolFileDWARF::get_apple_namespaces_data() SymbolFileDWARF::get_apple_namespaces_data()
{ {
return GetCachedSectionData (flagsGotAppleNamespacesData, eSectionTypeDWARFAppleNamespaces, m_data_apple_namespaces); return GetCachedSectionData (eSectionTypeDWARFAppleNamespaces, m_data_apple_namespaces);
} }
const DWARFDataExtractor& const DWARFDataExtractor&
SymbolFileDWARF::get_apple_objc_data() SymbolFileDWARF::get_apple_objc_data()
{ {
return GetCachedSectionData (flagsGotAppleObjCData, eSectionTypeDWARFAppleObjC, m_data_apple_objc); return GetCachedSectionData (eSectionTypeDWARFAppleObjC, m_data_apple_objc);
} }
DWARFDebugAbbrev* DWARFDebugAbbrev*
SymbolFileDWARF::DebugAbbrev() SymbolFileDWARF::DebugAbbrev()
{ {
if (m_abbr.get() == NULL) if (m_abbr.get() == NULL)
{ {
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