diff options
Diffstat (limited to 'source/Plugins/SymbolFile/DWARF/SymbolFileDWARFDebugMap.cpp')
| -rw-r--r-- | source/Plugins/SymbolFile/DWARF/SymbolFileDWARFDebugMap.cpp | 1586 |
1 files changed, 1586 insertions, 0 deletions
diff --git a/source/Plugins/SymbolFile/DWARF/SymbolFileDWARFDebugMap.cpp b/source/Plugins/SymbolFile/DWARF/SymbolFileDWARFDebugMap.cpp new file mode 100644 index 000000000000..a0430e3d52b6 --- /dev/null +++ b/source/Plugins/SymbolFile/DWARF/SymbolFileDWARFDebugMap.cpp @@ -0,0 +1,1586 @@ +//===-- 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 "DWARFDebugAranges.h" + +#include "lldb/Core/RangeMap.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(); + if (!oso_objfile) + return file_range_map; + + 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); + + // If the object file has been stripped, there is no sense in looking further + // as all of the debug symbols for the debug map will not be available + if (m_obj_file->IsStripped()) + return; + + // Also make sure the file type is some sort of executable. Core files, debug + // info files (dSYM), object files (.o files), and stub libraries all can + switch (m_obj_file->GetType()) + { + case ObjectFile::eTypeInvalid: + case ObjectFile::eTypeCoreFile: + case ObjectFile::eTypeDebugInfo: + case ObjectFile::eTypeObjectFile: + case ObjectFile::eTypeStubLibrary: + case ObjectFile::eTypeUnknown: + return; + + case ObjectFile::eTypeExecutable: + case ObjectFile::eTypeDynamicLinker: + case ObjectFile::eTypeSharedLibrary: + break; + } + + // 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) + { + InitOSO(); + if (!m_compile_unit_infos.empty()) + { + return SymbolFile::CompileUnits | + SymbolFile::Functions | + SymbolFile::Blocks | + SymbolFile::GlobalVariables | + SymbolFile::LocalVariables | + SymbolFile::VariableTypes | + SymbolFile::LineTables ; + } + } + 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; +} + +bool +SymbolFileDWARFDebugMap::ResolveClangOpaqueTypeDefinition (ClangASTType& clang_type) +{ + // We have a struct/union/class/enum that needs to be fully resolved. + return false; +} + +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; +} + +size_t +SymbolFileDWARFDebugMap::GetTypes (SymbolContextScope *sc_scope, + uint32_t type_mask, + TypeList &type_list) +{ + Timer scoped_timer (__PRETTY_FUNCTION__, + "SymbolFileDWARFDebugMap::GetTypes (type_mask = 0x%8.8x)", + type_mask); + + + uint32_t initial_size = type_list.GetSize(); + SymbolFileDWARF *oso_dwarf = NULL; + if (sc_scope) + { + SymbolContext sc; + sc_scope->CalculateSymbolContext(&sc); + + CompileUnitInfo *cu_info = GetCompUnitInfo (sc); + if (cu_info) + { + oso_dwarf = GetSymbolFileByCompUnitInfo (cu_info); + if (oso_dwarf) + oso_dwarf->GetTypes (sc_scope, type_mask, type_list); + } + } + else + { + uint32_t oso_idx = 0; + while ((oso_dwarf = GetSymbolFileByOSOIndex (oso_idx++)) != NULL) + { + oso_dwarf->GetTypes (sc_scope, type_mask, type_list); + } + } + return type_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; + ClangASTType 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; + ClangASTType 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) +{ + 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); + 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; +} + +size_t +SymbolFileDWARFDebugMap::AddOSOARanges (SymbolFileDWARF* dwarf2Data, DWARFDebugAranges* debug_aranges) +{ + size_t num_line_entries_added = 0; + if (debug_aranges && dwarf2Data) + { + CompileUnitInfo *compile_unit_info = GetCompileUnitInfo(dwarf2Data); + if (compile_unit_info) + { + const FileRangeMap &file_range_map = compile_unit_info->GetFileRangeMap(this); + for (size_t idx = 0; + idx < file_range_map.GetSize(); + idx++) + { + const FileRangeMap::Entry* entry = file_range_map.GetEntryAtIndex(idx); + if (entry) + { + printf ("[0x%16.16" PRIx64 " - 0x%16.16" PRIx64 ")\n", entry->GetRangeBase(), entry->GetRangeEnd()); + debug_aranges->AppendRange(dwarf2Data->GetID(), entry->GetRangeBase(), entry->GetRangeEnd()); + num_line_entries_added++; + } + } + } + } + return num_line_entries_added; +} + |