//===-- DWARFCompileUnit.cpp ------------------------------------*- C++ -*-===// // // The LLVM Compiler Infrastructure // // This file is distributed under the University of Illinois Open Source // License. See LICENSE.TXT for details. // //===----------------------------------------------------------------------===// #include "DWARFCompileUnit.h" #include "lldb/Core/Mangled.h" #include "lldb/Core/Module.h" #include "lldb/Core/Stream.h" #include "lldb/Core/Timer.h" #include "lldb/Symbol/CompileUnit.h" #include "lldb/Symbol/LineTable.h" #include "lldb/Symbol/ObjectFile.h" #include "lldb/Target/ObjCLanguageRuntime.h" #include "DWARFDebugAbbrev.h" #include "DWARFDebugAranges.h" #include "DWARFDebugInfo.h" #include "DWARFDIECollection.h" #include "DWARFFormValue.h" #include "LogChannelDWARF.h" #include "NameToDIE.h" #include "SymbolFileDWARF.h" #include "SymbolFileDWARFDebugMap.h" using namespace lldb; using namespace lldb_private; using namespace std; extern int g_verbose; DWARFCompileUnit::DWARFCompileUnit(SymbolFileDWARF* dwarf2Data) : m_dwarf2Data (dwarf2Data), m_abbrevs (NULL), m_user_data (NULL), m_die_array (), m_func_aranges_ap (), m_base_addr (0), m_offset (DW_INVALID_OFFSET), m_length (0), m_version (0), m_addr_size (DWARFCompileUnit::GetDefaultAddressSize()), m_producer (eProducerInvalid), m_producer_version_major (0), m_producer_version_minor (0), m_producer_version_update (0) { } void DWARFCompileUnit::Clear() { m_offset = DW_INVALID_OFFSET; m_length = 0; m_version = 0; m_abbrevs = NULL; m_addr_size = DWARFCompileUnit::GetDefaultAddressSize(); m_base_addr = 0; m_die_array.clear(); m_func_aranges_ap.reset(); m_user_data = NULL; m_producer = eProducerInvalid; } bool DWARFCompileUnit::Extract(const DWARFDataExtractor &debug_info, lldb::offset_t *offset_ptr) { Clear(); m_offset = *offset_ptr; if (debug_info.ValidOffset(*offset_ptr)) { dw_offset_t abbr_offset; const DWARFDebugAbbrev *abbr = m_dwarf2Data->DebugAbbrev(); m_length = debug_info.GetU32(offset_ptr); m_version = debug_info.GetU16(offset_ptr); abbr_offset = debug_info.GetU32(offset_ptr); m_addr_size = debug_info.GetU8 (offset_ptr); bool length_OK = debug_info.ValidOffset(GetNextCompileUnitOffset()-1); bool version_OK = SymbolFileDWARF::SupportedVersion(m_version); bool abbr_offset_OK = m_dwarf2Data->get_debug_abbrev_data().ValidOffset(abbr_offset); bool addr_size_OK = ((m_addr_size == 4) || (m_addr_size == 8)); if (length_OK && version_OK && addr_size_OK && abbr_offset_OK && abbr != NULL) { m_abbrevs = abbr->GetAbbreviationDeclarationSet(abbr_offset); return true; } // reset the offset to where we tried to parse from if anything went wrong *offset_ptr = m_offset; } return false; } void DWARFCompileUnit::ClearDIEs(bool keep_compile_unit_die) { if (m_die_array.size() > 1) { // std::vectors never get any smaller when resized to a smaller size, // or when clear() or erase() are called, the size will report that it // is smaller, but the memory allocated remains intact (call capacity() // to see this). So we need to create a temporary vector and swap the // contents which will cause just the internal pointers to be swapped // so that when "tmp_array" goes out of scope, it will destroy the // contents. // Save at least the compile unit DIE DWARFDebugInfoEntry::collection tmp_array; m_die_array.swap(tmp_array); if (keep_compile_unit_die) m_die_array.push_back(tmp_array.front()); } } //---------------------------------------------------------------------- // ParseCompileUnitDIEsIfNeeded // // Parses a compile unit and indexes its DIEs if it hasn't already been // done. //---------------------------------------------------------------------- size_t DWARFCompileUnit::ExtractDIEsIfNeeded (bool cu_die_only) { const size_t initial_die_array_size = m_die_array.size(); if ((cu_die_only && initial_die_array_size > 0) || initial_die_array_size > 1) return 0; // Already parsed Timer scoped_timer (__PRETTY_FUNCTION__, "%8.8x: DWARFCompileUnit::ExtractDIEsIfNeeded( cu_die_only = %i )", m_offset, cu_die_only); // Set the offset to that of the first DIE and calculate the start of the // next compilation unit header. lldb::offset_t offset = GetFirstDIEOffset(); lldb::offset_t next_cu_offset = GetNextCompileUnitOffset(); DWARFDebugInfoEntry die; // Keep a flat array of the DIE for binary lookup by DIE offset if (!cu_die_only) { Log *log (LogChannelDWARF::GetLogIfAny(DWARF_LOG_DEBUG_INFO | DWARF_LOG_LOOKUPS)); if (log) { m_dwarf2Data->GetObjectFile()->GetModule()->LogMessageVerboseBacktrace (log, "DWARFCompileUnit::ExtractDIEsIfNeeded () for compile unit at .debug_info[0x%8.8x]", GetOffset()); } } uint32_t depth = 0; // We are in our compile unit, parse starting at the offset // we were told to parse const DWARFDataExtractor& debug_info_data = m_dwarf2Data->get_debug_info_data(); std::vector die_index_stack; die_index_stack.reserve(32); die_index_stack.push_back(0); bool prev_die_had_children = false; const uint8_t *fixed_form_sizes = DWARFFormValue::GetFixedFormSizesForAddressSize (GetAddressByteSize()); while (offset < next_cu_offset && die.FastExtract (debug_info_data, this, fixed_form_sizes, &offset)) { // if (log) // log->Printf("0x%8.8x: %*.*s%s%s", // die.GetOffset(), // depth * 2, depth * 2, "", // DW_TAG_value_to_name (die.Tag()), // die.HasChildren() ? " *" : ""); const bool null_die = die.IsNULL(); if (depth == 0) { uint64_t base_addr = die.GetAttributeValueAsUnsigned(m_dwarf2Data, this, DW_AT_low_pc, LLDB_INVALID_ADDRESS); if (base_addr == LLDB_INVALID_ADDRESS) base_addr = die.GetAttributeValueAsUnsigned(m_dwarf2Data, this, DW_AT_entry_pc, 0); SetBaseAddress (base_addr); if (initial_die_array_size == 0) AddDIE (die); if (cu_die_only) return 1; } else { if (null_die) { if (prev_die_had_children) { // This will only happen if a DIE says is has children // but all it contains is a NULL tag. Since we are removing // the NULL DIEs from the list (saves up to 25% in C++ code), // we need a way to let the DIE know that it actually doesn't // have children. if (!m_die_array.empty()) m_die_array.back().SetEmptyChildren(true); } } else { die.SetParentIndex(m_die_array.size() - die_index_stack[depth-1]); if (die_index_stack.back()) m_die_array[die_index_stack.back()].SetSiblingIndex(m_die_array.size()-die_index_stack.back()); // Only push the DIE if it isn't a NULL DIE m_die_array.push_back(die); } } if (null_die) { // NULL DIE. if (!die_index_stack.empty()) die_index_stack.pop_back(); if (depth > 0) --depth; if (depth == 0) break; // We are done with this compile unit! prev_die_had_children = false; } else { die_index_stack.back() = m_die_array.size() - 1; // Normal DIE const bool die_has_children = die.HasChildren(); if (die_has_children) { die_index_stack.push_back(0); ++depth; } prev_die_had_children = die_has_children; } } // Give a little bit of info if we encounter corrupt DWARF (our offset // should always terminate at or before the start of the next compilation // unit header). if (offset > next_cu_offset) { m_dwarf2Data->GetObjectFile()->GetModule()->ReportWarning ("DWARF compile unit extends beyond its bounds cu 0x%8.8x at 0x%8.8" PRIx64 "\n", GetOffset(), offset); } // Since std::vector objects will double their size, we really need to // make a new array with the perfect size so we don't end up wasting // space. So here we copy and swap to make sure we don't have any extra // memory taken up. if (m_die_array.size () < m_die_array.capacity()) { DWARFDebugInfoEntry::collection exact_size_die_array (m_die_array.begin(), m_die_array.end()); exact_size_die_array.swap (m_die_array); } Log *log (LogChannelDWARF::GetLogIfAll (DWARF_LOG_DEBUG_INFO | DWARF_LOG_VERBOSE)); if (log) { StreamString strm; DWARFDebugInfoEntry::DumpDIECollection (strm, m_die_array); log->PutCString (strm.GetString().c_str()); } return m_die_array.size(); } dw_offset_t DWARFCompileUnit::GetAbbrevOffset() const { return m_abbrevs ? m_abbrevs->GetOffset() : DW_INVALID_OFFSET; } bool DWARFCompileUnit::Verify(Stream *s) const { const DWARFDataExtractor& debug_info = m_dwarf2Data->get_debug_info_data(); bool valid_offset = debug_info.ValidOffset(m_offset); bool length_OK = debug_info.ValidOffset(GetNextCompileUnitOffset()-1); bool version_OK = SymbolFileDWARF::SupportedVersion(m_version); bool abbr_offset_OK = m_dwarf2Data->get_debug_abbrev_data().ValidOffset(GetAbbrevOffset()); bool addr_size_OK = ((m_addr_size == 4) || (m_addr_size == 8)); bool verbose = s->GetVerbose(); if (valid_offset && length_OK && version_OK && addr_size_OK && abbr_offset_OK) { if (verbose) s->Printf(" 0x%8.8x: OK\n", m_offset); return true; } else { s->Printf(" 0x%8.8x: ", m_offset); m_dwarf2Data->get_debug_info_data().Dump (s, m_offset, lldb::eFormatHex, 1, Size(), 32, LLDB_INVALID_ADDRESS, 0, 0); s->EOL(); if (valid_offset) { if (!length_OK) s->Printf(" The length (0x%8.8x) for this compile unit is too large for the .debug_info provided.\n", m_length); if (!version_OK) s->Printf(" The 16 bit compile unit header version is not supported.\n"); if (!abbr_offset_OK) s->Printf(" The offset into the .debug_abbrev section (0x%8.8x) is not valid.\n", GetAbbrevOffset()); if (!addr_size_OK) s->Printf(" The address size is unsupported: 0x%2.2x\n", m_addr_size); } else s->Printf(" The start offset of the compile unit header in the .debug_info is invalid.\n"); } return false; } void DWARFCompileUnit::Dump(Stream *s) const { s->Printf("0x%8.8x: Compile Unit: length = 0x%8.8x, version = 0x%4.4x, abbr_offset = 0x%8.8x, addr_size = 0x%2.2x (next CU at {0x%8.8x})\n", m_offset, m_length, m_version, GetAbbrevOffset(), m_addr_size, GetNextCompileUnitOffset()); } static uint8_t g_default_addr_size = 4; uint8_t DWARFCompileUnit::GetAddressByteSize(const DWARFCompileUnit* cu) { if (cu) return cu->GetAddressByteSize(); return DWARFCompileUnit::GetDefaultAddressSize(); } uint8_t DWARFCompileUnit::GetDefaultAddressSize() { return g_default_addr_size; } void DWARFCompileUnit::SetDefaultAddressSize(uint8_t addr_size) { g_default_addr_size = addr_size; } void DWARFCompileUnit::BuildAddressRangeTable (SymbolFileDWARF* dwarf2Data, DWARFDebugAranges* debug_aranges, bool clear_dies_if_already_not_parsed) { // This function is usually called if there in no .debug_aranges section // in order to produce a compile unit level set of address ranges that // is accurate. If the DIEs weren't parsed, then we don't want all dies for // all compile units to stay loaded when they weren't needed. So we can end // up parsing the DWARF and then throwing them all away to keep memory usage // down. const bool clear_dies = ExtractDIEsIfNeeded (false) > 1; const DWARFDebugInfoEntry* die = DIE(); if (die) die->BuildAddressRangeTable(dwarf2Data, this, debug_aranges); if (debug_aranges->IsEmpty()) { // We got nothing from the functions, maybe we have a line tables only // situation. Check the line tables and build the arange table from this. SymbolContext sc; sc.comp_unit = dwarf2Data->GetCompUnitForDWARFCompUnit(this); if (sc.comp_unit) { SymbolFileDWARFDebugMap *debug_map_sym_file = m_dwarf2Data->GetDebugMapSymfile(); if (debug_map_sym_file == NULL) { LineTable *line_table = sc.comp_unit->GetLineTable(); if (line_table) { LineTable::FileAddressRanges file_ranges; const bool append = true; const size_t num_ranges = line_table->GetContiguousFileAddressRanges (file_ranges, append); for (uint32_t idx=0; idxAppendRange(GetOffset(), range.GetRangeBase(), range.GetRangeEnd()); printf ("0x%8.8x: [0x%16.16" PRIx64 " - 0x%16.16" PRIx64 ")\n", GetOffset(), range.GetRangeBase(), range.GetRangeEnd()); } } } else debug_map_sym_file->AddOSOARanges(dwarf2Data,debug_aranges); } } // Keep memory down by clearing DIEs if this generate function // caused them to be parsed if (clear_dies) ClearDIEs (true); } const DWARFDebugAranges & DWARFCompileUnit::GetFunctionAranges () { if (m_func_aranges_ap.get() == NULL) { m_func_aranges_ap.reset (new DWARFDebugAranges()); Log *log (LogChannelDWARF::GetLogIfAll(DWARF_LOG_DEBUG_ARANGES)); if (log) { m_dwarf2Data->GetObjectFile()->GetModule()->LogMessage (log, "DWARFCompileUnit::GetFunctionAranges() for compile unit at .debug_info[0x%8.8x]", GetOffset()); } const DWARFDebugInfoEntry* die = DIE(); if (die) die->BuildFunctionAddressRangeTable (m_dwarf2Data, this, m_func_aranges_ap.get()); const bool minimize = false; m_func_aranges_ap->Sort(minimize); } return *m_func_aranges_ap.get(); } bool DWARFCompileUnit::LookupAddress ( const dw_addr_t address, DWARFDebugInfoEntry** function_die_handle, DWARFDebugInfoEntry** block_die_handle ) { bool success = false; if (function_die_handle != NULL && DIE()) { const DWARFDebugAranges &func_aranges = GetFunctionAranges (); // Re-check the aranges auto pointer contents in case it was created above if (!func_aranges.IsEmpty()) { *function_die_handle = GetDIEPtr(func_aranges.FindAddress(address)); if (*function_die_handle != NULL) { success = true; if (block_die_handle != NULL) { DWARFDebugInfoEntry* child = (*function_die_handle)->GetFirstChild(); while (child) { if (child->LookupAddress(address, m_dwarf2Data, this, NULL, block_die_handle)) break; child = child->GetSibling(); } } } } } return success; } //---------------------------------------------------------------------- // Compare function DWARFDebugAranges::Range structures //---------------------------------------------------------------------- static bool CompareDIEOffset (const DWARFDebugInfoEntry& die1, const DWARFDebugInfoEntry& die2) { return die1.GetOffset() < die2.GetOffset(); } //---------------------------------------------------------------------- // GetDIEPtr() // // Get the DIE (Debug Information Entry) with the specified offset. //---------------------------------------------------------------------- DWARFDebugInfoEntry* DWARFCompileUnit::GetDIEPtr(dw_offset_t die_offset) { if (die_offset != DW_INVALID_OFFSET) { ExtractDIEsIfNeeded (false); DWARFDebugInfoEntry compare_die; compare_die.SetOffset(die_offset); DWARFDebugInfoEntry::iterator end = m_die_array.end(); DWARFDebugInfoEntry::iterator pos = lower_bound(m_die_array.begin(), end, compare_die, CompareDIEOffset); if (pos != end) { if (die_offset == (*pos).GetOffset()) return &(*pos); } } return NULL; // Not found in any compile units } //---------------------------------------------------------------------- // GetDIEPtrContainingOffset() // // Get the DIE (Debug Information Entry) that contains the specified // .debug_info offset. //---------------------------------------------------------------------- const DWARFDebugInfoEntry* DWARFCompileUnit::GetDIEPtrContainingOffset(dw_offset_t die_offset) { if (die_offset != DW_INVALID_OFFSET) { ExtractDIEsIfNeeded (false); DWARFDebugInfoEntry compare_die; compare_die.SetOffset(die_offset); DWARFDebugInfoEntry::iterator end = m_die_array.end(); DWARFDebugInfoEntry::iterator pos = lower_bound(m_die_array.begin(), end, compare_die, CompareDIEOffset); if (pos != end) { if (die_offset >= (*pos).GetOffset()) { DWARFDebugInfoEntry::iterator next = pos + 1; if (next != end) { if (die_offset < (*next).GetOffset()) return &(*pos); } } } } return NULL; // Not found in any compile units } size_t DWARFCompileUnit::AppendDIEsWithTag (const dw_tag_t tag, DWARFDIECollection& dies, uint32_t depth) const { size_t old_size = dies.Size(); DWARFDebugInfoEntry::const_iterator pos; DWARFDebugInfoEntry::const_iterator end = m_die_array.end(); for (pos = m_die_array.begin(); pos != end; ++pos) { if (pos->Tag() == tag) dies.Append (&(*pos)); } // Return the number of DIEs added to the collection return dies.Size() - old_size; } //void //DWARFCompileUnit::AddGlobalDIEByIndex (uint32_t die_idx) //{ // m_global_die_indexes.push_back (die_idx); //} // // //void //DWARFCompileUnit::AddGlobal (const DWARFDebugInfoEntry* die) //{ // // Indexes to all file level global and static variables // m_global_die_indexes; // // if (m_die_array.empty()) // return; // // const DWARFDebugInfoEntry* first_die = &m_die_array[0]; // const DWARFDebugInfoEntry* end = first_die + m_die_array.size(); // if (first_die <= die && die < end) // m_global_die_indexes.push_back (die - first_die); //} void DWARFCompileUnit::Index (const uint32_t cu_idx, NameToDIE& func_basenames, NameToDIE& func_fullnames, NameToDIE& func_methods, NameToDIE& func_selectors, NameToDIE& objc_class_selectors, NameToDIE& globals, NameToDIE& types, NameToDIE& namespaces) { const DWARFDataExtractor* debug_str = &m_dwarf2Data->get_debug_str_data(); const uint8_t *fixed_form_sizes = DWARFFormValue::GetFixedFormSizesForAddressSize (GetAddressByteSize()); Log *log (LogChannelDWARF::GetLogIfAll (DWARF_LOG_LOOKUPS)); if (log) { m_dwarf2Data->GetObjectFile()->GetModule()->LogMessage (log, "DWARFCompileUnit::Index() for compile unit at .debug_info[0x%8.8x]", GetOffset()); } DWARFDebugInfoEntry::const_iterator pos; DWARFDebugInfoEntry::const_iterator begin = m_die_array.begin(); DWARFDebugInfoEntry::const_iterator end = m_die_array.end(); for (pos = begin; pos != end; ++pos) { const DWARFDebugInfoEntry &die = *pos; const dw_tag_t tag = die.Tag(); switch (tag) { case DW_TAG_subprogram: case DW_TAG_inlined_subroutine: case DW_TAG_base_type: case DW_TAG_class_type: case DW_TAG_constant: case DW_TAG_enumeration_type: case DW_TAG_string_type: case DW_TAG_subroutine_type: case DW_TAG_structure_type: case DW_TAG_union_type: case DW_TAG_typedef: case DW_TAG_namespace: case DW_TAG_variable: case DW_TAG_unspecified_type: break; default: continue; } DWARFDebugInfoEntry::Attributes attributes; const char *name = NULL; const char *mangled_cstr = NULL; bool is_declaration = false; //bool is_artificial = false; bool has_address = false; bool has_location = false; bool is_global_or_static_variable = false; dw_offset_t specification_die_offset = DW_INVALID_OFFSET; const size_t num_attributes = die.GetAttributes(m_dwarf2Data, this, fixed_form_sizes, attributes); if (num_attributes > 0) { for (uint32_t i=0; iTag()) { case DW_TAG_subprogram: case DW_TAG_lexical_block: case DW_TAG_inlined_subroutine: // Even if this is a function level static, we don't add it. We could theoretically // add these if we wanted to by introspecting into the DW_AT_location and seeing // if the location describes a hard coded address, but we dont want the performance // penalty of that right now. is_global_or_static_variable = false; // if (attributes.ExtractFormValueAtIndex(dwarf2Data, i, form_value)) // { // // If we have valid block data, then we have location expression bytes // // that are fixed (not a location list). // const uint8_t *block_data = form_value.BlockData(); // if (block_data) // { // uint32_t block_length = form_value.Unsigned(); // if (block_length == 1 + attributes.CompileUnitAtIndex(i)->GetAddressByteSize()) // { // if (block_data[0] == DW_OP_addr) // add_die = true; // } // } // } parent_die = NULL; // Terminate the while loop. break; case DW_TAG_compile_unit: is_global_or_static_variable = true; parent_die = NULL; // Terminate the while loop. break; default: parent_die = parent_die->GetParent(); // Keep going in the while loop. break; } } } break; case DW_AT_specification: if (attributes.ExtractFormValueAtIndex(m_dwarf2Data, i, form_value)) specification_die_offset = form_value.Reference(this); break; } } } switch (tag) { case DW_TAG_subprogram: if (has_address) { if (name) { // Note, this check is also done in ParseMethodName, but since this is a hot loop, we do the // simple inlined check outside the call. ObjCLanguageRuntime::MethodName objc_method(name, true); if (objc_method.IsValid(true)) { ConstString objc_class_name_with_category (objc_method.GetClassNameWithCategory()); ConstString objc_selector_name (objc_method.GetSelector()); ConstString objc_fullname_no_category_name (objc_method.GetFullNameWithoutCategory(true)); ConstString objc_class_name_no_category (objc_method.GetClassName()); func_fullnames.Insert (ConstString(name), die.GetOffset()); if (objc_class_name_with_category) objc_class_selectors.Insert(objc_class_name_with_category, die.GetOffset()); if (objc_class_name_no_category && objc_class_name_no_category != objc_class_name_with_category) objc_class_selectors.Insert(objc_class_name_no_category, die.GetOffset()); if (objc_selector_name) func_selectors.Insert (objc_selector_name, die.GetOffset()); if (objc_fullname_no_category_name) func_fullnames.Insert (objc_fullname_no_category_name, die.GetOffset()); } // If we have a mangled name, then the DW_AT_name attribute // is usually the method name without the class or any parameters const DWARFDebugInfoEntry *parent = die.GetParent(); bool is_method = false; if (parent) { dw_tag_t parent_tag = parent->Tag(); if (parent_tag == DW_TAG_class_type || parent_tag == DW_TAG_structure_type) { is_method = true; } else { if (specification_die_offset != DW_INVALID_OFFSET) { const DWARFDebugInfoEntry *specification_die = m_dwarf2Data->DebugInfo()->GetDIEPtr (specification_die_offset, NULL); if (specification_die) { parent = specification_die->GetParent(); if (parent) { parent_tag = parent->Tag(); if (parent_tag == DW_TAG_class_type || parent_tag == DW_TAG_structure_type) is_method = true; } } } } } if (is_method) func_methods.Insert (ConstString(name), die.GetOffset()); else func_basenames.Insert (ConstString(name), die.GetOffset()); if (!is_method && !mangled_cstr && !objc_method.IsValid(true)) func_fullnames.Insert (ConstString(name), die.GetOffset()); } if (mangled_cstr) { // Make sure our mangled name isn't the same string table entry // as our name. If it starts with '_', then it is ok, else compare // the string to make sure it isn't the same and we don't end up // with duplicate entries if (name != mangled_cstr && ((mangled_cstr[0] == '_') || (name && ::strcmp(name, mangled_cstr) != 0))) { Mangled mangled (ConstString(mangled_cstr), true); func_fullnames.Insert (mangled.GetMangledName(), die.GetOffset()); if (mangled.GetDemangledName()) func_fullnames.Insert (mangled.GetDemangledName(), die.GetOffset()); } } } break; case DW_TAG_inlined_subroutine: if (has_address) { if (name) func_basenames.Insert (ConstString(name), die.GetOffset()); if (mangled_cstr) { // Make sure our mangled name isn't the same string table entry // as our name. If it starts with '_', then it is ok, else compare // the string to make sure it isn't the same and we don't end up // with duplicate entries if (name != mangled_cstr && ((mangled_cstr[0] == '_') || (::strcmp(name, mangled_cstr) != 0))) { Mangled mangled (ConstString(mangled_cstr), true); func_fullnames.Insert (mangled.GetMangledName(), die.GetOffset()); if (mangled.GetDemangledName()) func_fullnames.Insert (mangled.GetDemangledName(), die.GetOffset()); } } else func_fullnames.Insert (ConstString(name), die.GetOffset()); } break; case DW_TAG_base_type: case DW_TAG_class_type: case DW_TAG_constant: case DW_TAG_enumeration_type: case DW_TAG_string_type: case DW_TAG_subroutine_type: case DW_TAG_structure_type: case DW_TAG_union_type: case DW_TAG_typedef: case DW_TAG_unspecified_type: if (name && is_declaration == false) { types.Insert (ConstString(name), die.GetOffset()); } break; case DW_TAG_namespace: if (name) namespaces.Insert (ConstString(name), die.GetOffset()); break; case DW_TAG_variable: if (name && has_location && is_global_or_static_variable) { globals.Insert (ConstString(name), die.GetOffset()); // Be sure to include variables by their mangled and demangled // names if they have any since a variable can have a basename // "i", a mangled named "_ZN12_GLOBAL__N_11iE" and a demangled // mangled name "(anonymous namespace)::i"... // Make sure our mangled name isn't the same string table entry // as our name. If it starts with '_', then it is ok, else compare // the string to make sure it isn't the same and we don't end up // with duplicate entries if (mangled_cstr && name != mangled_cstr && ((mangled_cstr[0] == '_') || (::strcmp(name, mangled_cstr) != 0))) { Mangled mangled (ConstString(mangled_cstr), true); globals.Insert (mangled.GetMangledName(), die.GetOffset()); if (mangled.GetDemangledName()) globals.Insert (mangled.GetDemangledName(), die.GetOffset()); } } break; default: continue; } } } bool DWARFCompileUnit::Supports_unnamed_objc_bitfields () { if (GetProducer() == eProducerClang) { const uint32_t major_version = GetProducerVersionMajor(); if (major_version > 425 || (major_version == 425 && GetProducerVersionUpdate() >= 13)) return true; else return false; } return true; // Assume all other compilers didn't have incorrect ObjC bitfield info } bool DWARFCompileUnit::Supports_DW_AT_APPLE_objc_complete_type () { if (GetProducer() == eProducerLLVMGCC) return false; return true; } bool DWARFCompileUnit::DW_AT_decl_file_attributes_are_invalid() { // llvm-gcc makes completely invalid decl file attributes and won't ever // be fixed, so we need to know to ignore these. return GetProducer() == eProducerLLVMGCC; } void DWARFCompileUnit::ParseProducerInfo () { m_producer_version_major = UINT32_MAX; m_producer_version_minor = UINT32_MAX; m_producer_version_update = UINT32_MAX; const DWARFDebugInfoEntry *die = GetCompileUnitDIEOnly(); if (die) { const char *producer_cstr = die->GetAttributeValueAsString(m_dwarf2Data, this, DW_AT_producer, NULL); if (producer_cstr) { RegularExpression llvm_gcc_regex("^4\\.[012]\\.[01] \\(Based on Apple Inc\\. build [0-9]+\\) \\(LLVM build [\\.0-9]+\\)$"); if (llvm_gcc_regex.Execute (producer_cstr)) { m_producer = eProducerLLVMGCC; } else if (strstr(producer_cstr, "clang")) { static RegularExpression g_clang_version_regex("clang-([0-9]+)\\.([0-9]+)\\.([0-9]+)"); RegularExpression::Match regex_match(3); if (g_clang_version_regex.Execute (producer_cstr, ®ex_match)) { std::string str; if (regex_match.GetMatchAtIndex (producer_cstr, 1, str)) m_producer_version_major = Args::StringToUInt32(str.c_str(), UINT32_MAX, 10); if (regex_match.GetMatchAtIndex (producer_cstr, 2, str)) m_producer_version_minor = Args::StringToUInt32(str.c_str(), UINT32_MAX, 10); if (regex_match.GetMatchAtIndex (producer_cstr, 3, str)) m_producer_version_update = Args::StringToUInt32(str.c_str(), UINT32_MAX, 10); } m_producer = eProducerClang; } else if (strstr(producer_cstr, "GNU")) m_producer = eProducerGCC; } } if (m_producer == eProducerInvalid) m_producer = eProcucerOther; } DWARFCompileUnit::Producer DWARFCompileUnit::GetProducer () { if (m_producer == eProducerInvalid) ParseProducerInfo (); return m_producer; } uint32_t DWARFCompileUnit::GetProducerVersionMajor() { if (m_producer_version_major == 0) ParseProducerInfo (); return m_producer_version_major; } uint32_t DWARFCompileUnit::GetProducerVersionMinor() { if (m_producer_version_minor == 0) ParseProducerInfo (); return m_producer_version_minor; } uint32_t DWARFCompileUnit::GetProducerVersionUpdate() { if (m_producer_version_update == 0) ParseProducerInfo (); return m_producer_version_update; }