| //===-- SymbolFileDWARFDebugMap.cpp ----------------------------*- C++ -*-===// |
| // |
| // The LLVM Compiler Infrastructure |
| // |
| // This file is distributed under the University of Illinois Open Source |
| // License. See LICENSE.TXT for details. |
| // |
| //===----------------------------------------------------------------------===// |
| |
| #include "SymbolFileDWARFDebugMap.h" |
| |
| #include "lldb/Core/Module.h" |
| #include "lldb/Core/ModuleList.h" |
| #include "lldb/Core/PluginManager.h" |
| #include "lldb/Core/RegularExpression.h" |
| #include "lldb/Core/Section.h" |
| |
| //#define DEBUG_OSO_DMAP // DO NOT CHECKIN WITH THIS NOT COMMENTED OUT |
| #if defined(DEBUG_OSO_DMAP) |
| #include "lldb/Core/StreamFile.h" |
| #endif |
| #include "lldb/Core/Timer.h" |
| |
| #include "lldb/Symbol/ClangExternalASTSourceCallbacks.h" |
| #include "lldb/Symbol/CompileUnit.h" |
| #include "lldb/Symbol/LineTable.h" |
| #include "lldb/Symbol/ObjectFile.h" |
| #include "lldb/Symbol/SymbolVendor.h" |
| #include "lldb/Symbol/VariableList.h" |
| |
| #include "LogChannelDWARF.h" |
| #include "SymbolFileDWARF.h" |
| |
| using namespace lldb; |
| using namespace lldb_private; |
| |
| // Subclass lldb_private::Module so we can intercept the "Module::GetObjectFile()" |
| // (so we can fixup the object file sections) and also for "Module::GetSymbolVendor()" |
| // (so we can fixup the symbol file id. |
| |
| |
| |
| |
| const SymbolFileDWARFDebugMap::FileRangeMap & |
| SymbolFileDWARFDebugMap::CompileUnitInfo::GetFileRangeMap(SymbolFileDWARFDebugMap *exe_symfile) |
| { |
| if (file_range_map_valid) |
| return file_range_map; |
| |
| file_range_map_valid = true; |
| |
| Module *oso_module = exe_symfile->GetModuleByCompUnitInfo (this); |
| if (!oso_module) |
| return file_range_map; |
| |
| ObjectFile *oso_objfile = oso_module->GetObjectFile(); |
| |
| Log *log (LogChannelDWARF::GetLogIfAll(DWARF_LOG_DEBUG_MAP)); |
| if (log) |
| { |
| ConstString object_name (oso_module->GetObjectName()); |
| log->Printf("%p: SymbolFileDWARFDebugMap::CompileUnitInfo::GetFileRangeMap ('%s')", |
| this, |
| oso_module->GetSpecificationDescription().c_str()); |
| } |
| |
| |
| std::vector<SymbolFileDWARFDebugMap::CompileUnitInfo *> cu_infos; |
| if (exe_symfile->GetCompUnitInfosForModule(oso_module, cu_infos)) |
| { |
| for (auto comp_unit_info : cu_infos) |
| { |
| Symtab *exe_symtab = exe_symfile->GetObjectFile()->GetSymtab(); |
| ModuleSP oso_module_sp (oso_objfile->GetModule()); |
| Symtab *oso_symtab = oso_objfile->GetSymtab(); |
| |
| ///const uint32_t fun_resolve_flags = SymbolContext::Module | eSymbolContextCompUnit | eSymbolContextFunction; |
| //SectionList *oso_sections = oso_objfile->Sections(); |
| // Now we need to make sections that map from zero based object |
| // file addresses to where things eneded up in the main executable. |
| |
| assert (comp_unit_info->first_symbol_index != UINT32_MAX); |
| // End index is one past the last valid symbol index |
| const uint32_t oso_end_idx = comp_unit_info->last_symbol_index + 1; |
| for (uint32_t idx = comp_unit_info->first_symbol_index + 2; // Skip the N_SO and N_OSO |
| idx < oso_end_idx; |
| ++idx) |
| { |
| Symbol *exe_symbol = exe_symtab->SymbolAtIndex(idx); |
| if (exe_symbol) |
| { |
| if (exe_symbol->IsDebug() == false) |
| continue; |
| |
| switch (exe_symbol->GetType()) |
| { |
| default: |
| break; |
| |
| case eSymbolTypeCode: |
| { |
| // For each N_FUN, or function that we run into in the debug map |
| // we make a new section that we add to the sections found in the |
| // .o file. This new section has the file address set to what the |
| // addresses are in the .o file, and the load address is adjusted |
| // to match where it ended up in the final executable! We do this |
| // before we parse any dwarf info so that when it goes get parsed |
| // all section/offset addresses that get registered will resolve |
| // correctly to the new addresses in the main executable. |
| |
| // First we find the original symbol in the .o file's symbol table |
| Symbol *oso_fun_symbol = oso_symtab->FindFirstSymbolWithNameAndType (exe_symbol->GetMangled().GetName(Mangled::ePreferMangled), |
| eSymbolTypeCode, |
| Symtab::eDebugNo, |
| Symtab::eVisibilityAny); |
| if (oso_fun_symbol) |
| { |
| // Add the inverse OSO file address to debug map entry mapping |
| exe_symfile->AddOSOFileRange (this, |
| exe_symbol->GetAddress().GetFileAddress(), |
| oso_fun_symbol->GetAddress().GetFileAddress(), |
| std::min<addr_t>(exe_symbol->GetByteSize(), oso_fun_symbol->GetByteSize())); |
| |
| } |
| } |
| break; |
| |
| case eSymbolTypeData: |
| { |
| // For each N_GSYM we remap the address for the global by making |
| // a new section that we add to the sections found in the .o file. |
| // This new section has the file address set to what the |
| // addresses are in the .o file, and the load address is adjusted |
| // to match where it ended up in the final executable! We do this |
| // before we parse any dwarf info so that when it goes get parsed |
| // all section/offset addresses that get registered will resolve |
| // correctly to the new addresses in the main executable. We |
| // initially set the section size to be 1 byte, but will need to |
| // fix up these addresses further after all globals have been |
| // parsed to span the gaps, or we can find the global variable |
| // sizes from the DWARF info as we are parsing. |
| |
| // Next we find the non-stab entry that corresponds to the N_GSYM in the .o file |
| Symbol *oso_gsym_symbol = oso_symtab->FindFirstSymbolWithNameAndType (exe_symbol->GetMangled().GetName(Mangled::ePreferMangled), |
| eSymbolTypeData, |
| Symtab::eDebugNo, |
| Symtab::eVisibilityAny); |
| |
| if (exe_symbol && oso_gsym_symbol && |
| exe_symbol->ValueIsAddress() && |
| oso_gsym_symbol->ValueIsAddress()) |
| { |
| // Add the inverse OSO file address to debug map entry mapping |
| exe_symfile->AddOSOFileRange (this, |
| exe_symbol->GetAddress().GetFileAddress(), |
| oso_gsym_symbol->GetAddress().GetFileAddress(), |
| std::min<addr_t>(exe_symbol->GetByteSize(), oso_gsym_symbol->GetByteSize())); |
| } |
| } |
| break; |
| } |
| } |
| } |
| |
| exe_symfile->FinalizeOSOFileRanges (this); |
| // We don't need the symbols anymore for the .o files |
| oso_objfile->ClearSymtab(); |
| } |
| } |
| return file_range_map; |
| } |
| |
| |
| class DebugMapModule : public Module |
| { |
| public: |
| DebugMapModule (const ModuleSP &exe_module_sp, |
| uint32_t cu_idx, |
| const FileSpec& file_spec, |
| const ArchSpec& arch, |
| const ConstString *object_name, |
| off_t object_offset, |
| const TimeValue *object_mod_time_ptr) : |
| Module (file_spec, arch, object_name, object_offset, object_mod_time_ptr), |
| m_exe_module_wp (exe_module_sp), |
| m_cu_idx (cu_idx) |
| { |
| } |
| |
| virtual |
| ~DebugMapModule () |
| { |
| } |
| |
| |
| virtual SymbolVendor* |
| GetSymbolVendor(bool can_create = true, lldb_private::Stream *feedback_strm = NULL) |
| { |
| // Scope for locker |
| if (m_symfile_ap.get() || can_create == false) |
| return m_symfile_ap.get(); |
| |
| ModuleSP exe_module_sp (m_exe_module_wp.lock()); |
| if (exe_module_sp) |
| { |
| // Now get the object file outside of a locking scope |
| ObjectFile *oso_objfile = GetObjectFile (); |
| if (oso_objfile) |
| { |
| Mutex::Locker locker (m_mutex); |
| SymbolVendor* symbol_vendor = Module::GetSymbolVendor(can_create, feedback_strm); |
| if (symbol_vendor) |
| { |
| // Set a a pointer to this class to set our OSO DWARF file know |
| // that the DWARF is being used along with a debug map and that |
| // it will have the remapped sections that we do below. |
| SymbolFileDWARF *oso_symfile = SymbolFileDWARFDebugMap::GetSymbolFileAsSymbolFileDWARF(symbol_vendor->GetSymbolFile()); |
| |
| if (!oso_symfile) |
| return NULL; |
| |
| ObjectFile *exe_objfile = exe_module_sp->GetObjectFile(); |
| SymbolVendor *exe_sym_vendor = exe_module_sp->GetSymbolVendor(); |
| |
| if (exe_objfile && exe_sym_vendor) |
| { |
| if (oso_symfile->GetNumCompileUnits() == 1) |
| { |
| oso_symfile->SetDebugMapModule(exe_module_sp); |
| // Set the ID of the symbol file DWARF to the index of the OSO |
| // shifted left by 32 bits to provide a unique prefix for any |
| // UserID's that get created in the symbol file. |
| oso_symfile->SetID (((uint64_t)m_cu_idx + 1ull) << 32ull); |
| } |
| else |
| { |
| oso_symfile->SetID (UINT64_MAX); |
| } |
| } |
| return symbol_vendor; |
| } |
| } |
| } |
| return NULL; |
| } |
| |
| protected: |
| ModuleWP m_exe_module_wp; |
| const uint32_t m_cu_idx; |
| }; |
| |
| void |
| SymbolFileDWARFDebugMap::Initialize() |
| { |
| PluginManager::RegisterPlugin (GetPluginNameStatic(), |
| GetPluginDescriptionStatic(), |
| CreateInstance); |
| } |
| |
| void |
| SymbolFileDWARFDebugMap::Terminate() |
| { |
| PluginManager::UnregisterPlugin (CreateInstance); |
| } |
| |
| |
| lldb_private::ConstString |
| SymbolFileDWARFDebugMap::GetPluginNameStatic() |
| { |
| static ConstString g_name("dwarf-debugmap"); |
| return g_name; |
| } |
| |
| const char * |
| SymbolFileDWARFDebugMap::GetPluginDescriptionStatic() |
| { |
| return "DWARF and DWARF3 debug symbol file reader (debug map)."; |
| } |
| |
| SymbolFile* |
| SymbolFileDWARFDebugMap::CreateInstance (ObjectFile* obj_file) |
| { |
| return new SymbolFileDWARFDebugMap (obj_file); |
| } |
| |
| |
| SymbolFileDWARFDebugMap::SymbolFileDWARFDebugMap (ObjectFile* ofile) : |
| SymbolFile(ofile), |
| m_flags(), |
| m_compile_unit_infos(), |
| m_func_indexes(), |
| m_glob_indexes(), |
| m_supports_DW_AT_APPLE_objc_complete_type (eLazyBoolCalculate) |
| { |
| } |
| |
| |
| SymbolFileDWARFDebugMap::~SymbolFileDWARFDebugMap() |
| { |
| } |
| |
| void |
| SymbolFileDWARFDebugMap::InitializeObject() |
| { |
| // Install our external AST source callbacks so we can complete Clang types. |
| llvm::OwningPtr<clang::ExternalASTSource> ast_source_ap ( |
| new ClangExternalASTSourceCallbacks (SymbolFileDWARFDebugMap::CompleteTagDecl, |
| SymbolFileDWARFDebugMap::CompleteObjCInterfaceDecl, |
| NULL, |
| SymbolFileDWARFDebugMap::LayoutRecordType, |
| this)); |
| |
| GetClangASTContext().SetExternalSource (ast_source_ap); |
| } |
| |
| void |
| SymbolFileDWARFDebugMap::InitOSO() |
| { |
| if (m_flags.test(kHaveInitializedOSOs)) |
| return; |
| |
| m_flags.set(kHaveInitializedOSOs); |
| // In order to get the abilities of this plug-in, we look at the list of |
| // N_OSO entries (object files) from the symbol table and make sure that |
| // these files exist and also contain valid DWARF. If we get any of that |
| // then we return the abilities of the first N_OSO's DWARF. |
| |
| Symtab* symtab = m_obj_file->GetSymtab(); |
| if (symtab) |
| { |
| Log *log (LogChannelDWARF::GetLogIfAll(DWARF_LOG_DEBUG_MAP)); |
| |
| std::vector<uint32_t> oso_indexes; |
| // When a mach-o symbol is encoded, the n_type field is encoded in bits |
| // 23:16, and the n_desc field is encoded in bits 15:0. |
| // |
| // To find all N_OSO entries that are part of the DWARF + debug map |
| // we find only object file symbols with the flags value as follows: |
| // bits 23:16 == 0x66 (N_OSO) |
| // bits 15: 0 == 0x0001 (specifies this is a debug map object file) |
| const uint32_t k_oso_symbol_flags_value = 0x660001u; |
| |
| const uint32_t oso_index_count = symtab->AppendSymbolIndexesWithTypeAndFlagsValue(eSymbolTypeObjectFile, k_oso_symbol_flags_value, oso_indexes); |
| |
| if (oso_index_count > 0) |
| { |
| symtab->AppendSymbolIndexesWithType (eSymbolTypeCode, Symtab::eDebugYes, Symtab::eVisibilityAny, m_func_indexes); |
| symtab->AppendSymbolIndexesWithType (eSymbolTypeData, Symtab::eDebugYes, Symtab::eVisibilityAny, m_glob_indexes); |
| |
| symtab->SortSymbolIndexesByValue(m_func_indexes, true); |
| symtab->SortSymbolIndexesByValue(m_glob_indexes, true); |
| |
| for (uint32_t sym_idx : m_func_indexes) |
| { |
| const Symbol *symbol = symtab->SymbolAtIndex(sym_idx); |
| lldb::addr_t file_addr = symbol->GetAddress().GetFileAddress(); |
| lldb::addr_t byte_size = symbol->GetByteSize(); |
| DebugMap::Entry debug_map_entry(file_addr, byte_size, OSOEntry(sym_idx, LLDB_INVALID_ADDRESS)); |
| m_debug_map.Append(debug_map_entry); |
| } |
| for (uint32_t sym_idx : m_glob_indexes) |
| { |
| const Symbol *symbol = symtab->SymbolAtIndex(sym_idx); |
| lldb::addr_t file_addr = symbol->GetAddress().GetFileAddress(); |
| lldb::addr_t byte_size = symbol->GetByteSize(); |
| DebugMap::Entry debug_map_entry(file_addr, byte_size, OSOEntry(sym_idx, LLDB_INVALID_ADDRESS)); |
| m_debug_map.Append(debug_map_entry); |
| } |
| m_debug_map.Sort(); |
| |
| m_compile_unit_infos.resize(oso_index_count); |
| |
| for (uint32_t i=0; i<oso_index_count; ++i) |
| { |
| const uint32_t so_idx = oso_indexes[i] - 1; |
| const uint32_t oso_idx = oso_indexes[i]; |
| const Symbol *so_symbol = symtab->SymbolAtIndex(so_idx); |
| const Symbol *oso_symbol = symtab->SymbolAtIndex(oso_idx); |
| if (so_symbol && |
| oso_symbol && |
| so_symbol->GetType() == eSymbolTypeSourceFile && |
| oso_symbol->GetType() == eSymbolTypeObjectFile) |
| { |
| m_compile_unit_infos[i].so_file.SetFile(so_symbol->GetName().AsCString(), false); |
| m_compile_unit_infos[i].oso_path = oso_symbol->GetName(); |
| TimeValue oso_mod_time; |
| oso_mod_time.OffsetWithSeconds(oso_symbol->GetAddress().GetOffset()); |
| m_compile_unit_infos[i].oso_mod_time = oso_mod_time; |
| uint32_t sibling_idx = so_symbol->GetSiblingIndex(); |
| // The sibling index can't be less that or equal to the current index "i" |
| if (sibling_idx <= i) |
| { |
| m_obj_file->GetModule()->ReportError ("N_SO in symbol with UID %u has invalid sibling in debug map, please file a bug and attach the binary listed in this error", so_symbol->GetID()); |
| } |
| else |
| { |
| const Symbol* last_symbol = symtab->SymbolAtIndex (sibling_idx - 1); |
| m_compile_unit_infos[i].first_symbol_index = so_idx; |
| m_compile_unit_infos[i].last_symbol_index = sibling_idx - 1; |
| m_compile_unit_infos[i].first_symbol_id = so_symbol->GetID(); |
| m_compile_unit_infos[i].last_symbol_id = last_symbol->GetID(); |
| |
| if (log) |
| log->Printf("Initialized OSO 0x%8.8x: file=%s", i, oso_symbol->GetName().GetCString()); |
| } |
| } |
| else |
| { |
| if (oso_symbol == NULL) |
| m_obj_file->GetModule()->ReportError ("N_OSO symbol[%u] can't be found, please file a bug and attach the binary listed in this error", oso_idx); |
| else if (so_symbol == NULL) |
| m_obj_file->GetModule()->ReportError ("N_SO not found for N_OSO symbol[%u], please file a bug and attach the binary listed in this error", oso_idx); |
| else if (so_symbol->GetType() != eSymbolTypeSourceFile) |
| m_obj_file->GetModule()->ReportError ("N_SO has incorrect symbol type (%u) for N_OSO symbol[%u], please file a bug and attach the binary listed in this error", so_symbol->GetType(), oso_idx); |
| else if (oso_symbol->GetType() != eSymbolTypeSourceFile) |
| m_obj_file->GetModule()->ReportError ("N_OSO has incorrect symbol type (%u) for N_OSO symbol[%u], please file a bug and attach the binary listed in this error", oso_symbol->GetType(), oso_idx); |
| } |
| } |
| } |
| } |
| } |
| |
| Module * |
| SymbolFileDWARFDebugMap::GetModuleByOSOIndex (uint32_t oso_idx) |
| { |
| const uint32_t cu_count = GetNumCompileUnits(); |
| if (oso_idx < cu_count) |
| return GetModuleByCompUnitInfo (&m_compile_unit_infos[oso_idx]); |
| return NULL; |
| } |
| |
| Module * |
| SymbolFileDWARFDebugMap::GetModuleByCompUnitInfo (CompileUnitInfo *comp_unit_info) |
| { |
| if (!comp_unit_info->oso_sp) |
| { |
| auto pos = m_oso_map.find (comp_unit_info->oso_path); |
| if (pos != m_oso_map.end()) |
| { |
| comp_unit_info->oso_sp = pos->second; |
| } |
| else |
| { |
| ObjectFile *obj_file = GetObjectFile(); |
| comp_unit_info->oso_sp.reset (new OSOInfo()); |
| m_oso_map[comp_unit_info->oso_path] = comp_unit_info->oso_sp; |
| const char *oso_path = comp_unit_info->oso_path.GetCString(); |
| FileSpec oso_file (oso_path, false); |
| ConstString oso_object; |
| if (oso_file.Exists()) |
| { |
| TimeValue oso_mod_time (oso_file.GetModificationTime()); |
| if (oso_mod_time != comp_unit_info->oso_mod_time) |
| { |
| obj_file->GetModule()->ReportError ("debug map object file '%s' has changed (actual time is 0x%" PRIx64 ", debug map time is 0x%" PRIx64 ") since this executable was linked, file will be ignored", |
| oso_file.GetPath().c_str(), |
| oso_mod_time.GetAsSecondsSinceJan1_1970(), |
| comp_unit_info->oso_mod_time.GetAsSecondsSinceJan1_1970()); |
| return NULL; |
| } |
| |
| } |
| else |
| { |
| const bool must_exist = true; |
| |
| if (!ObjectFile::SplitArchivePathWithObject (oso_path, |
| oso_file, |
| oso_object, |
| must_exist)) |
| { |
| return NULL; |
| } |
| } |
| // Always create a new module for .o files. Why? Because we |
| // use the debug map, to add new sections to each .o file and |
| // even though a .o file might not have changed, the sections |
| // that get added to the .o file can change. |
| comp_unit_info->oso_sp->module_sp.reset (new DebugMapModule (obj_file->GetModule(), |
| GetCompUnitInfoIndex(comp_unit_info), |
| oso_file, |
| m_obj_file->GetModule()->GetArchitecture(), |
| oso_object ? &oso_object : NULL, |
| 0, |
| oso_object ? &comp_unit_info->oso_mod_time : NULL)); |
| } |
| } |
| if (comp_unit_info->oso_sp) |
| return comp_unit_info->oso_sp->module_sp.get(); |
| return NULL; |
| } |
| |
| |
| bool |
| SymbolFileDWARFDebugMap::GetFileSpecForSO (uint32_t oso_idx, FileSpec &file_spec) |
| { |
| if (oso_idx < m_compile_unit_infos.size()) |
| { |
| if (m_compile_unit_infos[oso_idx].so_file) |
| { |
| file_spec = m_compile_unit_infos[oso_idx].so_file; |
| return true; |
| } |
| } |
| return false; |
| } |
| |
| |
| |
| ObjectFile * |
| SymbolFileDWARFDebugMap::GetObjectFileByOSOIndex (uint32_t oso_idx) |
| { |
| Module *oso_module = GetModuleByOSOIndex (oso_idx); |
| if (oso_module) |
| return oso_module->GetObjectFile(); |
| return NULL; |
| } |
| |
| SymbolFileDWARF * |
| SymbolFileDWARFDebugMap::GetSymbolFile (const SymbolContext& sc) |
| { |
| CompileUnitInfo *comp_unit_info = GetCompUnitInfo (sc); |
| if (comp_unit_info) |
| return GetSymbolFileByCompUnitInfo (comp_unit_info); |
| return NULL; |
| } |
| |
| ObjectFile * |
| SymbolFileDWARFDebugMap::GetObjectFileByCompUnitInfo (CompileUnitInfo *comp_unit_info) |
| { |
| Module *oso_module = GetModuleByCompUnitInfo (comp_unit_info); |
| if (oso_module) |
| return oso_module->GetObjectFile(); |
| return NULL; |
| } |
| |
| |
| uint32_t |
| SymbolFileDWARFDebugMap::GetCompUnitInfoIndex (const CompileUnitInfo *comp_unit_info) |
| { |
| if (!m_compile_unit_infos.empty()) |
| { |
| const CompileUnitInfo *first_comp_unit_info = &m_compile_unit_infos.front(); |
| const CompileUnitInfo *last_comp_unit_info = &m_compile_unit_infos.back(); |
| if (first_comp_unit_info <= comp_unit_info && comp_unit_info <= last_comp_unit_info) |
| return comp_unit_info - first_comp_unit_info; |
| } |
| return UINT32_MAX; |
| } |
| |
| SymbolFileDWARF * |
| SymbolFileDWARFDebugMap::GetSymbolFileByOSOIndex (uint32_t oso_idx) |
| { |
| if (oso_idx < m_compile_unit_infos.size()) |
| return GetSymbolFileByCompUnitInfo (&m_compile_unit_infos[oso_idx]); |
| return NULL; |
| } |
| |
| SymbolFileDWARF * |
| SymbolFileDWARFDebugMap::GetSymbolFileAsSymbolFileDWARF (SymbolFile *sym_file) |
| { |
| if (sym_file && sym_file->GetPluginName() == SymbolFileDWARF::GetPluginNameStatic()) |
| return (SymbolFileDWARF *)sym_file; |
| return NULL; |
| } |
| |
| SymbolFileDWARF * |
| SymbolFileDWARFDebugMap::GetSymbolFileByCompUnitInfo (CompileUnitInfo *comp_unit_info) |
| { |
| Module *oso_module = GetModuleByCompUnitInfo (comp_unit_info); |
| if (oso_module) |
| { |
| SymbolVendor *sym_vendor = oso_module->GetSymbolVendor(); |
| if (sym_vendor) |
| return GetSymbolFileAsSymbolFileDWARF (sym_vendor->GetSymbolFile()); |
| } |
| return NULL; |
| } |
| |
| uint32_t |
| SymbolFileDWARFDebugMap::CalculateAbilities () |
| { |
| // In order to get the abilities of this plug-in, we look at the list of |
| // N_OSO entries (object files) from the symbol table and make sure that |
| // these files exist and also contain valid DWARF. If we get any of that |
| // then we return the abilities of the first N_OSO's DWARF. |
| |
| const uint32_t oso_index_count = GetNumCompileUnits(); |
| if (oso_index_count > 0) |
| { |
| const uint32_t dwarf_abilities = SymbolFile::CompileUnits | |
| SymbolFile::Functions | |
| SymbolFile::Blocks | |
| SymbolFile::GlobalVariables | |
| SymbolFile::LocalVariables | |
| SymbolFile::VariableTypes | |
| SymbolFile::LineTables; |
| |
| InitOSO(); |
| if (!m_compile_unit_infos.empty()) |
| return dwarf_abilities; |
| // for (uint32_t oso_idx=0; oso_idx<oso_index_count; ++oso_idx) |
| // { |
| // SymbolFileDWARF *oso_dwarf = GetSymbolFileByOSOIndex (oso_idx); |
| // if (oso_dwarf) |
| // { |
| // uint32_t oso_abilities = oso_dwarf->GetAbilities(); |
| // if ((oso_abilities & dwarf_abilities) == dwarf_abilities) |
| // return oso_abilities; |
| // } |
| // } |
| } |
| return 0; |
| } |
| |
| uint32_t |
| SymbolFileDWARFDebugMap::GetNumCompileUnits() |
| { |
| InitOSO (); |
| return m_compile_unit_infos.size(); |
| } |
| |
| |
| CompUnitSP |
| SymbolFileDWARFDebugMap::ParseCompileUnitAtIndex(uint32_t cu_idx) |
| { |
| CompUnitSP comp_unit_sp; |
| const uint32_t cu_count = GetNumCompileUnits(); |
| |
| if (cu_idx < cu_count) |
| { |
| Module *oso_module = GetModuleByCompUnitInfo (&m_compile_unit_infos[cu_idx]); |
| if (oso_module) |
| { |
| FileSpec so_file_spec; |
| if (GetFileSpecForSO (cu_idx, so_file_spec)) |
| { |
| // User zero as the ID to match the compile unit at offset |
| // zero in each .o file since each .o file can only have |
| // one compile unit for now. |
| lldb::user_id_t cu_id = 0; |
| m_compile_unit_infos[cu_idx].compile_unit_sp.reset(new CompileUnit (m_obj_file->GetModule(), |
| NULL, |
| so_file_spec, |
| cu_id, |
| eLanguageTypeUnknown)); |
| |
| if (m_compile_unit_infos[cu_idx].compile_unit_sp) |
| { |
| // Let our symbol vendor know about this compile unit |
| m_obj_file->GetModule()->GetSymbolVendor()->SetCompileUnitAtIndex (cu_idx, m_compile_unit_infos[cu_idx].compile_unit_sp); |
| } |
| } |
| } |
| comp_unit_sp = m_compile_unit_infos[cu_idx].compile_unit_sp; |
| } |
| |
| return comp_unit_sp; |
| } |
| |
| SymbolFileDWARFDebugMap::CompileUnitInfo * |
| SymbolFileDWARFDebugMap::GetCompUnitInfo (const SymbolContext& sc) |
| { |
| const uint32_t cu_count = GetNumCompileUnits(); |
| for (uint32_t i=0; i<cu_count; ++i) |
| { |
| if (sc.comp_unit == m_compile_unit_infos[i].compile_unit_sp.get()) |
| return &m_compile_unit_infos[i]; |
| } |
| return NULL; |
| } |
| |
| |
| size_t |
| SymbolFileDWARFDebugMap::GetCompUnitInfosForModule (const lldb_private::Module *module, std::vector<CompileUnitInfo *>& cu_infos) |
| { |
| const uint32_t cu_count = GetNumCompileUnits(); |
| for (uint32_t i=0; i<cu_count; ++i) |
| { |
| if (module == GetModuleByCompUnitInfo (&m_compile_unit_infos[i])) |
| cu_infos.push_back (&m_compile_unit_infos[i]); |
| } |
| return cu_infos.size(); |
| } |
| |
| lldb::LanguageType |
| SymbolFileDWARFDebugMap::ParseCompileUnitLanguage (const SymbolContext& sc) |
| { |
| SymbolFileDWARF *oso_dwarf = GetSymbolFile (sc); |
| if (oso_dwarf) |
| return oso_dwarf->ParseCompileUnitLanguage (sc); |
| return eLanguageTypeUnknown; |
| } |
| |
| size_t |
| SymbolFileDWARFDebugMap::ParseCompileUnitFunctions (const SymbolContext& sc) |
| { |
| SymbolFileDWARF *oso_dwarf = GetSymbolFile (sc); |
| if (oso_dwarf) |
| return oso_dwarf->ParseCompileUnitFunctions (sc); |
| return 0; |
| } |
| |
| bool |
| SymbolFileDWARFDebugMap::ParseCompileUnitLineTable (const SymbolContext& sc) |
| { |
| SymbolFileDWARF *oso_dwarf = GetSymbolFile (sc); |
| if (oso_dwarf) |
| return oso_dwarf->ParseCompileUnitLineTable (sc); |
| return false; |
| } |
| |
| bool |
| SymbolFileDWARFDebugMap::ParseCompileUnitSupportFiles (const SymbolContext& sc, FileSpecList &support_files) |
| { |
| SymbolFileDWARF *oso_dwarf = GetSymbolFile (sc); |
| if (oso_dwarf) |
| return oso_dwarf->ParseCompileUnitSupportFiles (sc, support_files); |
| return false; |
| } |
| |
| |
| size_t |
| SymbolFileDWARFDebugMap::ParseFunctionBlocks (const SymbolContext& sc) |
| { |
| SymbolFileDWARF *oso_dwarf = GetSymbolFile (sc); |
| if (oso_dwarf) |
| return oso_dwarf->ParseFunctionBlocks (sc); |
| return 0; |
| } |
| |
| |
| size_t |
| SymbolFileDWARFDebugMap::ParseTypes (const SymbolContext& sc) |
| { |
| SymbolFileDWARF *oso_dwarf = GetSymbolFile (sc); |
| if (oso_dwarf) |
| return oso_dwarf->ParseTypes (sc); |
| return 0; |
| } |
| |
| |
| size_t |
| SymbolFileDWARFDebugMap::ParseVariablesForContext (const SymbolContext& sc) |
| { |
| SymbolFileDWARF *oso_dwarf = GetSymbolFile (sc); |
| if (oso_dwarf) |
| return oso_dwarf->ParseVariablesForContext (sc); |
| return 0; |
| } |
| |
| |
| |
| Type* |
| SymbolFileDWARFDebugMap::ResolveTypeUID(lldb::user_id_t type_uid) |
| { |
| const uint64_t oso_idx = GetOSOIndexFromUserID (type_uid); |
| SymbolFileDWARF *oso_dwarf = GetSymbolFileByOSOIndex (oso_idx); |
| if (oso_dwarf) |
| return oso_dwarf->ResolveTypeUID (type_uid); |
| return NULL; |
| } |
| |
| lldb::clang_type_t |
| SymbolFileDWARFDebugMap::ResolveClangOpaqueTypeDefinition (lldb::clang_type_t clang_type) |
| { |
| // We have a struct/union/class/enum that needs to be fully resolved. |
| return NULL; |
| } |
| |
| uint32_t |
| SymbolFileDWARFDebugMap::ResolveSymbolContext (const Address& exe_so_addr, uint32_t resolve_scope, SymbolContext& sc) |
| { |
| uint32_t resolved_flags = 0; |
| Symtab* symtab = m_obj_file->GetSymtab(); |
| if (symtab) |
| { |
| const addr_t exe_file_addr = exe_so_addr.GetFileAddress(); |
| |
| const DebugMap::Entry *debug_map_entry = m_debug_map.FindEntryThatContains (exe_file_addr); |
| if (debug_map_entry) |
| { |
| |
| sc.symbol = symtab->SymbolAtIndex(debug_map_entry->data.GetExeSymbolIndex()); |
| |
| if (sc.symbol != NULL) |
| { |
| resolved_flags |= eSymbolContextSymbol; |
| |
| uint32_t oso_idx = 0; |
| CompileUnitInfo* comp_unit_info = GetCompileUnitInfoForSymbolWithID (sc.symbol->GetID(), &oso_idx); |
| if (comp_unit_info) |
| { |
| comp_unit_info->GetFileRangeMap(this); |
| Module *oso_module = GetModuleByCompUnitInfo (comp_unit_info); |
| if (oso_module) |
| { |
| lldb::addr_t oso_file_addr = exe_file_addr - debug_map_entry->GetRangeBase() + debug_map_entry->data.GetOSOFileAddress(); |
| Address oso_so_addr; |
| if (oso_module->ResolveFileAddress(oso_file_addr, oso_so_addr)) |
| { |
| resolved_flags |= oso_module->GetSymbolVendor()->ResolveSymbolContext (oso_so_addr, resolve_scope, sc); |
| } |
| } |
| } |
| } |
| } |
| } |
| return resolved_flags; |
| } |
| |
| |
| uint32_t |
| SymbolFileDWARFDebugMap::ResolveSymbolContext (const FileSpec& file_spec, uint32_t line, bool check_inlines, uint32_t resolve_scope, SymbolContextList& sc_list) |
| { |
| const uint32_t initial = sc_list.GetSize(); |
| const uint32_t cu_count = GetNumCompileUnits(); |
| |
| for (uint32_t i=0; i<cu_count; ++i) |
| { |
| // If we are checking for inlines, then we need to look through all |
| // compile units no matter if "file_spec" matches. |
| bool resolve = check_inlines; |
| |
| if (!resolve) |
| { |
| FileSpec so_file_spec; |
| if (GetFileSpecForSO (i, so_file_spec)) |
| { |
| // Match the full path if the incoming file_spec has a directory (not just a basename) |
| const bool full_match = file_spec.GetDirectory(); |
| resolve = FileSpec::Equal (file_spec, so_file_spec, full_match); |
| } |
| } |
| if (resolve) |
| { |
| SymbolFileDWARF *oso_dwarf = GetSymbolFileByOSOIndex (i); |
| if (oso_dwarf) |
| oso_dwarf->ResolveSymbolContext(file_spec, line, check_inlines, resolve_scope, sc_list); |
| } |
| } |
| return sc_list.GetSize() - initial; |
| } |
| |
| uint32_t |
| SymbolFileDWARFDebugMap::PrivateFindGlobalVariables |
| ( |
| const ConstString &name, |
| const ClangNamespaceDecl *namespace_decl, |
| const std::vector<uint32_t> &indexes, // Indexes into the symbol table that match "name" |
| uint32_t max_matches, |
| VariableList& variables |
| ) |
| { |
| const uint32_t original_size = variables.GetSize(); |
| const size_t match_count = indexes.size(); |
| for (size_t i=0; i<match_count; ++i) |
| { |
| uint32_t oso_idx; |
| CompileUnitInfo* comp_unit_info = GetCompileUnitInfoForSymbolWithIndex (indexes[i], &oso_idx); |
| if (comp_unit_info) |
| { |
| SymbolFileDWARF *oso_dwarf = GetSymbolFileByOSOIndex (oso_idx); |
| if (oso_dwarf) |
| { |
| if (oso_dwarf->FindGlobalVariables(name, namespace_decl, true, max_matches, variables)) |
| if (variables.GetSize() > max_matches) |
| break; |
| } |
| } |
| } |
| return variables.GetSize() - original_size; |
| } |
| |
| uint32_t |
| SymbolFileDWARFDebugMap::FindGlobalVariables (const ConstString &name, const ClangNamespaceDecl *namespace_decl, bool append, uint32_t max_matches, VariableList& variables) |
| { |
| |
| // If we aren't appending the results to this list, then clear the list |
| if (!append) |
| variables.Clear(); |
| |
| // Remember how many variables are in the list before we search in case |
| // we are appending the results to a variable list. |
| const uint32_t original_size = variables.GetSize(); |
| |
| uint32_t total_matches = 0; |
| SymbolFileDWARF *oso_dwarf; |
| for (uint32_t oso_idx = 0; ((oso_dwarf = GetSymbolFileByOSOIndex (oso_idx)) != NULL); ++oso_idx) |
| { |
| const uint32_t oso_matches = oso_dwarf->FindGlobalVariables (name, |
| namespace_decl, |
| true, |
| max_matches, |
| variables); |
| if (oso_matches > 0) |
| { |
| total_matches += oso_matches; |
| |
| // Are we getting all matches? |
| if (max_matches == UINT32_MAX) |
| continue; // Yep, continue getting everything |
| |
| // If we have found enough matches, lets get out |
| if (max_matches >= total_matches) |
| break; |
| |
| // Update the max matches for any subsequent calls to find globals |
| // in any other object files with DWARF |
| max_matches -= oso_matches; |
| } |
| } |
| // Return the number of variable that were appended to the list |
| return variables.GetSize() - original_size; |
| } |
| |
| |
| uint32_t |
| SymbolFileDWARFDebugMap::FindGlobalVariables (const RegularExpression& regex, bool append, uint32_t max_matches, VariableList& variables) |
| { |
| // If we aren't appending the results to this list, then clear the list |
| if (!append) |
| variables.Clear(); |
| |
| // Remember how many variables are in the list before we search in case |
| // we are appending the results to a variable list. |
| const uint32_t original_size = variables.GetSize(); |
| |
| uint32_t total_matches = 0; |
| SymbolFileDWARF *oso_dwarf; |
| for (uint32_t oso_idx = 0; ((oso_dwarf = GetSymbolFileByOSOIndex (oso_idx)) != NULL); ++oso_idx) |
| { |
| const uint32_t oso_matches = oso_dwarf->FindGlobalVariables (regex, |
| true, |
| max_matches, |
| variables); |
| if (oso_matches > 0) |
| { |
| total_matches += oso_matches; |
| |
| // Are we getting all matches? |
| if (max_matches == UINT32_MAX) |
| continue; // Yep, continue getting everything |
| |
| // If we have found enough matches, lets get out |
| if (max_matches >= total_matches) |
| break; |
| |
| // Update the max matches for any subsequent calls to find globals |
| // in any other object files with DWARF |
| max_matches -= oso_matches; |
| } |
| } |
| // Return the number of variable that were appended to the list |
| return variables.GetSize() - original_size; |
| } |
| |
| |
| int |
| SymbolFileDWARFDebugMap::SymbolContainsSymbolWithIndex (uint32_t *symbol_idx_ptr, const CompileUnitInfo *comp_unit_info) |
| { |
| const uint32_t symbol_idx = *symbol_idx_ptr; |
| |
| if (symbol_idx < comp_unit_info->first_symbol_index) |
| return -1; |
| |
| if (symbol_idx <= comp_unit_info->last_symbol_index) |
| return 0; |
| |
| return 1; |
| } |
| |
| |
| int |
| SymbolFileDWARFDebugMap::SymbolContainsSymbolWithID (user_id_t *symbol_idx_ptr, const CompileUnitInfo *comp_unit_info) |
| { |
| const user_id_t symbol_id = *symbol_idx_ptr; |
| |
| if (symbol_id < comp_unit_info->first_symbol_id) |
| return -1; |
| |
| if (symbol_id <= comp_unit_info->last_symbol_id) |
| return 0; |
| |
| return 1; |
| } |
| |
| |
| SymbolFileDWARFDebugMap::CompileUnitInfo* |
| SymbolFileDWARFDebugMap::GetCompileUnitInfoForSymbolWithIndex (uint32_t symbol_idx, uint32_t *oso_idx_ptr) |
| { |
| const uint32_t oso_index_count = m_compile_unit_infos.size(); |
| CompileUnitInfo *comp_unit_info = NULL; |
| if (oso_index_count) |
| { |
| comp_unit_info = (CompileUnitInfo*)bsearch(&symbol_idx, |
| &m_compile_unit_infos[0], |
| m_compile_unit_infos.size(), |
| sizeof(CompileUnitInfo), |
| (ComparisonFunction)SymbolContainsSymbolWithIndex); |
| } |
| |
| if (oso_idx_ptr) |
| { |
| if (comp_unit_info != NULL) |
| *oso_idx_ptr = comp_unit_info - &m_compile_unit_infos[0]; |
| else |
| *oso_idx_ptr = UINT32_MAX; |
| } |
| return comp_unit_info; |
| } |
| |
| SymbolFileDWARFDebugMap::CompileUnitInfo* |
| SymbolFileDWARFDebugMap::GetCompileUnitInfoForSymbolWithID (user_id_t symbol_id, uint32_t *oso_idx_ptr) |
| { |
| const uint32_t oso_index_count = m_compile_unit_infos.size(); |
| CompileUnitInfo *comp_unit_info = NULL; |
| if (oso_index_count) |
| { |
| comp_unit_info = (CompileUnitInfo*)::bsearch (&symbol_id, |
| &m_compile_unit_infos[0], |
| m_compile_unit_infos.size(), |
| sizeof(CompileUnitInfo), |
| (ComparisonFunction)SymbolContainsSymbolWithID); |
| } |
| |
| if (oso_idx_ptr) |
| { |
| if (comp_unit_info != NULL) |
| *oso_idx_ptr = comp_unit_info - &m_compile_unit_infos[0]; |
| else |
| *oso_idx_ptr = UINT32_MAX; |
| } |
| return comp_unit_info; |
| } |
| |
| |
| static void |
| RemoveFunctionsWithModuleNotEqualTo (const ModuleSP &module_sp, SymbolContextList &sc_list, uint32_t start_idx) |
| { |
| // We found functions in .o files. Not all functions in the .o files |
| // will have made it into the final output file. The ones that did |
| // make it into the final output file will have a section whose module |
| // matches the module from the ObjectFile for this SymbolFile. When |
| // the modules don't match, then we have something that was in a |
| // .o file, but doesn't map to anything in the final executable. |
| uint32_t i=start_idx; |
| while (i < sc_list.GetSize()) |
| { |
| SymbolContext sc; |
| sc_list.GetContextAtIndex(i, sc); |
| if (sc.function) |
| { |
| const SectionSP section_sp (sc.function->GetAddressRange().GetBaseAddress().GetSection()); |
| if (section_sp->GetModule() != module_sp) |
| { |
| sc_list.RemoveContextAtIndex(i); |
| continue; |
| } |
| } |
| ++i; |
| } |
| } |
| |
| uint32_t |
| SymbolFileDWARFDebugMap::FindFunctions(const ConstString &name, const ClangNamespaceDecl *namespace_decl, uint32_t name_type_mask, bool include_inlines, bool append, SymbolContextList& sc_list) |
| { |
| Timer scoped_timer (__PRETTY_FUNCTION__, |
| "SymbolFileDWARFDebugMap::FindFunctions (name = %s)", |
| name.GetCString()); |
| |
| uint32_t initial_size = 0; |
| if (append) |
| initial_size = sc_list.GetSize(); |
| else |
| sc_list.Clear(); |
| |
| uint32_t oso_idx = 0; |
| SymbolFileDWARF *oso_dwarf; |
| while ((oso_dwarf = GetSymbolFileByOSOIndex (oso_idx++)) != NULL) |
| { |
| uint32_t sc_idx = sc_list.GetSize(); |
| if (oso_dwarf->FindFunctions(name, namespace_decl, name_type_mask, include_inlines, true, sc_list)) |
| { |
| RemoveFunctionsWithModuleNotEqualTo (m_obj_file->GetModule(), sc_list, sc_idx); |
| } |
| } |
| |
| return sc_list.GetSize() - initial_size; |
| } |
| |
| |
| uint32_t |
| SymbolFileDWARFDebugMap::FindFunctions (const RegularExpression& regex, bool include_inlines, bool append, SymbolContextList& sc_list) |
| { |
| Timer scoped_timer (__PRETTY_FUNCTION__, |
| "SymbolFileDWARFDebugMap::FindFunctions (regex = '%s')", |
| regex.GetText()); |
| |
| uint32_t initial_size = 0; |
| if (append) |
| initial_size = sc_list.GetSize(); |
| else |
| sc_list.Clear(); |
| |
| uint32_t oso_idx = 0; |
| SymbolFileDWARF *oso_dwarf; |
| while ((oso_dwarf = GetSymbolFileByOSOIndex (oso_idx++)) != NULL) |
| { |
| uint32_t sc_idx = sc_list.GetSize(); |
| |
| if (oso_dwarf->FindFunctions(regex, include_inlines, true, sc_list)) |
| { |
| RemoveFunctionsWithModuleNotEqualTo (m_obj_file->GetModule(), sc_list, sc_idx); |
| } |
| } |
| |
| return sc_list.GetSize() - initial_size; |
| } |
| |
| TypeSP |
| SymbolFileDWARFDebugMap::FindDefinitionTypeForDWARFDeclContext (const DWARFDeclContext &die_decl_ctx) |
| { |
| TypeSP type_sp; |
| SymbolFileDWARF *oso_dwarf; |
| for (uint32_t oso_idx = 0; ((oso_dwarf = GetSymbolFileByOSOIndex (oso_idx)) != NULL); ++oso_idx) |
| { |
| type_sp = oso_dwarf->FindDefinitionTypeForDWARFDeclContext (die_decl_ctx); |
| if (type_sp) |
| break; |
| } |
| return type_sp; |
| } |
| |
| |
| |
| bool |
| SymbolFileDWARFDebugMap::Supports_DW_AT_APPLE_objc_complete_type (SymbolFileDWARF *skip_dwarf_oso) |
| { |
| if (m_supports_DW_AT_APPLE_objc_complete_type == eLazyBoolCalculate) |
| { |
| m_supports_DW_AT_APPLE_objc_complete_type = eLazyBoolNo; |
| SymbolFileDWARF *oso_dwarf; |
| for (uint32_t oso_idx = 0; ((oso_dwarf = GetSymbolFileByOSOIndex (oso_idx)) != NULL); ++oso_idx) |
| { |
| if (skip_dwarf_oso != oso_dwarf && oso_dwarf->Supports_DW_AT_APPLE_objc_complete_type(NULL)) |
| { |
| m_supports_DW_AT_APPLE_objc_complete_type = eLazyBoolYes; |
| break; |
| } |
| } |
| } |
| return m_supports_DW_AT_APPLE_objc_complete_type == eLazyBoolYes; |
| } |
| |
| TypeSP |
| SymbolFileDWARFDebugMap::FindCompleteObjCDefinitionTypeForDIE (const DWARFDebugInfoEntry *die, |
| const ConstString &type_name, |
| bool must_be_implementation) |
| { |
| TypeSP type_sp; |
| SymbolFileDWARF *oso_dwarf; |
| for (uint32_t oso_idx = 0; ((oso_dwarf = GetSymbolFileByOSOIndex (oso_idx)) != NULL); ++oso_idx) |
| { |
| type_sp = oso_dwarf->FindCompleteObjCDefinitionTypeForDIE (die, type_name, must_be_implementation); |
| if (type_sp) |
| break; |
| } |
| return type_sp; |
| } |
| |
| uint32_t |
| SymbolFileDWARFDebugMap::FindTypes |
| ( |
| const SymbolContext& sc, |
| const ConstString &name, |
| const ClangNamespaceDecl *namespace_decl, |
| bool append, |
| uint32_t max_matches, |
| TypeList& types |
| ) |
| { |
| if (!append) |
| types.Clear(); |
| |
| const uint32_t initial_types_size = types.GetSize(); |
| SymbolFileDWARF *oso_dwarf; |
| |
| if (sc.comp_unit) |
| { |
| oso_dwarf = GetSymbolFile (sc); |
| if (oso_dwarf) |
| return oso_dwarf->FindTypes (sc, name, namespace_decl, append, max_matches, types); |
| } |
| else |
| { |
| uint32_t oso_idx = 0; |
| while ((oso_dwarf = GetSymbolFileByOSOIndex (oso_idx++)) != NULL) |
| oso_dwarf->FindTypes (sc, name, namespace_decl, append, max_matches, types); |
| } |
| |
| return types.GetSize() - initial_types_size; |
| } |
| |
| // |
| //uint32_t |
| //SymbolFileDWARFDebugMap::FindTypes (const SymbolContext& sc, const RegularExpression& regex, bool append, uint32_t max_matches, Type::Encoding encoding, lldb::user_id_t udt_uid, TypeList& types) |
| //{ |
| // SymbolFileDWARF *oso_dwarf = GetSymbolFile (sc); |
| // if (oso_dwarf) |
| // return oso_dwarf->FindTypes (sc, regex, append, max_matches, encoding, udt_uid, types); |
| // return 0; |
| //} |
| |
| |
| ClangNamespaceDecl |
| SymbolFileDWARFDebugMap::FindNamespace (const lldb_private::SymbolContext& sc, |
| const lldb_private::ConstString &name, |
| const ClangNamespaceDecl *parent_namespace_decl) |
| { |
| ClangNamespaceDecl matching_namespace; |
| SymbolFileDWARF *oso_dwarf; |
| |
| if (sc.comp_unit) |
| { |
| oso_dwarf = GetSymbolFile (sc); |
| if (oso_dwarf) |
| matching_namespace = oso_dwarf->FindNamespace (sc, name, parent_namespace_decl); |
| } |
| else |
| { |
| for (uint32_t oso_idx = 0; |
| ((oso_dwarf = GetSymbolFileByOSOIndex (oso_idx)) != NULL); |
| ++oso_idx) |
| { |
| matching_namespace = oso_dwarf->FindNamespace (sc, name, parent_namespace_decl); |
| |
| if (matching_namespace) |
| break; |
| } |
| } |
| |
| return matching_namespace; |
| } |
| |
| //------------------------------------------------------------------ |
| // PluginInterface protocol |
| //------------------------------------------------------------------ |
| lldb_private::ConstString |
| SymbolFileDWARFDebugMap::GetPluginName() |
| { |
| return GetPluginNameStatic(); |
| } |
| |
| uint32_t |
| SymbolFileDWARFDebugMap::GetPluginVersion() |
| { |
| return 1; |
| } |
| |
| lldb::CompUnitSP |
| SymbolFileDWARFDebugMap::GetCompileUnit (SymbolFileDWARF *oso_dwarf) |
| { |
| if (oso_dwarf) |
| { |
| const uint32_t cu_count = GetNumCompileUnits(); |
| for (uint32_t cu_idx=0; cu_idx<cu_count; ++cu_idx) |
| { |
| SymbolFileDWARF *oso_symfile = GetSymbolFileByCompUnitInfo (&m_compile_unit_infos[cu_idx]); |
| if (oso_symfile == oso_dwarf) |
| { |
| if (!m_compile_unit_infos[cu_idx].compile_unit_sp) |
| m_compile_unit_infos[cu_idx].compile_unit_sp = ParseCompileUnitAtIndex (cu_idx); |
| |
| return m_compile_unit_infos[cu_idx].compile_unit_sp; |
| } |
| } |
| } |
| assert(!"this shouldn't happen"); |
| return lldb::CompUnitSP(); |
| } |
| |
| SymbolFileDWARFDebugMap::CompileUnitInfo * |
| SymbolFileDWARFDebugMap::GetCompileUnitInfo (SymbolFileDWARF *oso_dwarf) |
| { |
| if (oso_dwarf) |
| { |
| const uint32_t cu_count = GetNumCompileUnits(); |
| for (uint32_t cu_idx=0; cu_idx<cu_count; ++cu_idx) |
| { |
| SymbolFileDWARF *oso_symfile = GetSymbolFileByCompUnitInfo (&m_compile_unit_infos[cu_idx]); |
| if (oso_symfile == oso_dwarf) |
| { |
| return &m_compile_unit_infos[cu_idx]; |
| } |
| } |
| } |
| return NULL; |
| } |
| |
| |
| void |
| SymbolFileDWARFDebugMap::SetCompileUnit (SymbolFileDWARF *oso_dwarf, const CompUnitSP &cu_sp) |
| { |
| if (oso_dwarf) |
| { |
| const uint32_t cu_count = GetNumCompileUnits(); |
| for (uint32_t cu_idx=0; cu_idx<cu_count; ++cu_idx) |
| { |
| SymbolFileDWARF *oso_symfile = GetSymbolFileByCompUnitInfo (&m_compile_unit_infos[cu_idx]); |
| if (oso_symfile == oso_dwarf) |
| { |
| if (m_compile_unit_infos[cu_idx].compile_unit_sp) |
| { |
| assert (m_compile_unit_infos[cu_idx].compile_unit_sp.get() == cu_sp.get()); |
| } |
| else |
| { |
| m_compile_unit_infos[cu_idx].compile_unit_sp = cu_sp; |
| m_obj_file->GetModule()->GetSymbolVendor()->SetCompileUnitAtIndex(cu_idx, cu_sp); |
| } |
| } |
| } |
| } |
| } |
| |
| |
| void |
| SymbolFileDWARFDebugMap::CompleteTagDecl (void *baton, clang::TagDecl *decl) |
| { |
| SymbolFileDWARFDebugMap *symbol_file_dwarf = (SymbolFileDWARFDebugMap *)baton; |
| clang_type_t clang_type = symbol_file_dwarf->GetClangASTContext().GetTypeForDecl (decl); |
| if (clang_type) |
| { |
| SymbolFileDWARF *oso_dwarf; |
| |
| for (uint32_t oso_idx = 0; ((oso_dwarf = symbol_file_dwarf->GetSymbolFileByOSOIndex (oso_idx)) != NULL); ++oso_idx) |
| { |
| if (oso_dwarf->HasForwardDeclForClangType (clang_type)) |
| { |
| oso_dwarf->ResolveClangOpaqueTypeDefinition (clang_type); |
| return; |
| } |
| } |
| } |
| } |
| |
| void |
| SymbolFileDWARFDebugMap::CompleteObjCInterfaceDecl (void *baton, clang::ObjCInterfaceDecl *decl) |
| { |
| SymbolFileDWARFDebugMap *symbol_file_dwarf = (SymbolFileDWARFDebugMap *)baton; |
| clang_type_t clang_type = symbol_file_dwarf->GetClangASTContext().GetTypeForDecl (decl); |
| if (clang_type) |
| { |
| SymbolFileDWARF *oso_dwarf; |
| |
| for (uint32_t oso_idx = 0; ((oso_dwarf = symbol_file_dwarf->GetSymbolFileByOSOIndex (oso_idx)) != NULL); ++oso_idx) |
| { |
| if (oso_dwarf->HasForwardDeclForClangType (clang_type)) |
| { |
| oso_dwarf->ResolveClangOpaqueTypeDefinition (clang_type); |
| return; |
| } |
| } |
| } |
| } |
| |
| bool |
| SymbolFileDWARFDebugMap::LayoutRecordType (void *baton, |
| const clang::RecordDecl *record_decl, |
| uint64_t &size, |
| uint64_t &alignment, |
| llvm::DenseMap <const clang::FieldDecl *, uint64_t> &field_offsets, |
| llvm::DenseMap <const clang::CXXRecordDecl *, clang::CharUnits> &base_offsets, |
| llvm::DenseMap <const clang::CXXRecordDecl *, clang::CharUnits> &vbase_offsets) |
| { |
| SymbolFileDWARFDebugMap *symbol_file_dwarf = (SymbolFileDWARFDebugMap *)baton; |
| SymbolFileDWARF *oso_dwarf; |
| for (uint32_t oso_idx = 0; ((oso_dwarf = symbol_file_dwarf->GetSymbolFileByOSOIndex (oso_idx)) != NULL); ++oso_idx) |
| { |
| if (oso_dwarf->LayoutRecordType (record_decl, size, alignment, field_offsets, base_offsets, vbase_offsets)) |
| return true; |
| } |
| return false; |
| } |
| |
| |
| |
| clang::DeclContext* |
| SymbolFileDWARFDebugMap::GetClangDeclContextContainingTypeUID (lldb::user_id_t type_uid) |
| { |
| const uint64_t oso_idx = GetOSOIndexFromUserID (type_uid); |
| SymbolFileDWARF *oso_dwarf = GetSymbolFileByOSOIndex (oso_idx); |
| if (oso_dwarf) |
| return oso_dwarf->GetClangDeclContextContainingTypeUID (type_uid); |
| return NULL; |
| } |
| |
| clang::DeclContext* |
| SymbolFileDWARFDebugMap::GetClangDeclContextForTypeUID (const lldb_private::SymbolContext &sc, lldb::user_id_t type_uid) |
| { |
| const uint64_t oso_idx = GetOSOIndexFromUserID (type_uid); |
| SymbolFileDWARF *oso_dwarf = GetSymbolFileByOSOIndex (oso_idx); |
| if (oso_dwarf) |
| return oso_dwarf->GetClangDeclContextForTypeUID (sc, type_uid); |
| return NULL; |
| } |
| |
| bool |
| SymbolFileDWARFDebugMap::AddOSOFileRange (CompileUnitInfo *cu_info, |
| lldb::addr_t exe_file_addr, |
| lldb::addr_t oso_file_addr, |
| lldb::addr_t oso_byte_size) |
| { |
| assert (cu_info);// REMOVE THIS PRIOR TO CHECKIN |
| const uint32_t debug_map_idx = m_debug_map.FindEntryIndexThatContains(exe_file_addr); |
| if (debug_map_idx != UINT32_MAX) |
| { |
| DebugMap::Entry *debug_map_entry = m_debug_map.FindEntryThatContains(exe_file_addr); |
| assert (debug_map_entry);// REMOVE THIS PRIOR TO CHECKIN |
| debug_map_entry->data.SetOSOFileAddress(oso_file_addr); |
| cu_info->file_range_map.Append(FileRangeMap::Entry(oso_file_addr, oso_byte_size, exe_file_addr)); |
| return true; |
| } |
| return false; |
| } |
| |
| void |
| SymbolFileDWARFDebugMap::FinalizeOSOFileRanges (CompileUnitInfo *cu_info) |
| { |
| cu_info->file_range_map.Sort(); |
| #if defined(DEBUG_OSO_DMAP) |
| const FileRangeMap &oso_file_range_map = cu_info->GetFileRangeMap(this); |
| const size_t n = oso_file_range_map.GetSize(); |
| printf ("SymbolFileDWARFDebugMap::FinalizeOSOFileRanges (cu_info = %p) %s\n", |
| cu_info, |
| cu_info->oso_sp->module_sp->GetFileSpec().GetPath().c_str()); |
| for (size_t i=0; i<n; ++i) |
| { |
| const FileRangeMap::Entry &entry = oso_file_range_map.GetEntryRef(i); |
| printf ("oso [0x%16.16" PRIx64 " - 0x%16.16" PRIx64 ") ==> exe [0x%16.16" PRIx64 " - 0x%16.16" PRIx64 ")\n", |
| entry.GetRangeBase(), entry.GetRangeEnd(), |
| entry.data, entry.data + entry.GetByteSize()); |
| } |
| #endif |
| } |
| |
| lldb::addr_t |
| SymbolFileDWARFDebugMap::LinkOSOFileAddress (SymbolFileDWARF *oso_symfile, lldb::addr_t oso_file_addr) |
| { |
| CompileUnitInfo *cu_info = GetCompileUnitInfo (oso_symfile); |
| if (cu_info) |
| { |
| const FileRangeMap::Entry *oso_range_entry = cu_info->GetFileRangeMap(this).FindEntryThatContains(oso_file_addr); |
| if (oso_range_entry) |
| { |
| const DebugMap::Entry *debug_map_entry = m_debug_map.FindEntryThatContains(oso_range_entry->data); |
| if (debug_map_entry) |
| { |
| const lldb::addr_t offset = oso_file_addr - oso_range_entry->GetRangeBase(); |
| const lldb::addr_t exe_file_addr = debug_map_entry->GetRangeBase() + offset; |
| return exe_file_addr; |
| } |
| } |
| } |
| return LLDB_INVALID_ADDRESS; |
| } |
| |
| bool |
| SymbolFileDWARFDebugMap::LinkOSOAddress (Address &addr) |
| { |
| // Make sure this address hasn't been fixed already |
| Module *exe_module = GetObjectFile()->GetModule().get(); |
| Module *addr_module = addr.GetModule().get(); |
| if (addr_module == exe_module) |
| return true; // Address is already in terms of the main executable module |
| |
| CompileUnitInfo *cu_info = GetCompileUnitInfo (GetSymbolFileAsSymbolFileDWARF(addr_module->GetSymbolVendor()->GetSymbolFile())); |
| if (cu_info) |
| { |
| const lldb::addr_t oso_file_addr = addr.GetFileAddress(); |
| const FileRangeMap::Entry *oso_range_entry = cu_info->GetFileRangeMap(this).FindEntryThatContains(oso_file_addr); |
| if (oso_range_entry) |
| { |
| const DebugMap::Entry *debug_map_entry = m_debug_map.FindEntryThatContains(oso_range_entry->data); |
| if (debug_map_entry) |
| { |
| const lldb::addr_t offset = oso_file_addr - oso_range_entry->GetRangeBase(); |
| const lldb::addr_t exe_file_addr = debug_map_entry->GetRangeBase() + offset; |
| return exe_module->ResolveFileAddress(exe_file_addr, addr); |
| } |
| } |
| } |
| return true; |
| } |
| |
| LineTable * |
| SymbolFileDWARFDebugMap::LinkOSOLineTable (SymbolFileDWARF *oso_dwarf, LineTable *line_table) |
| { |
| CompileUnitInfo *cu_info = GetCompileUnitInfo (oso_dwarf); |
| if (cu_info) |
| return line_table->LinkLineTable(cu_info->GetFileRangeMap(this)); |
| return NULL; |
| } |
| |
| |