1 //===-- SymbolFileDWARFDebugMap.cpp ----------------------------*- C++ -*-===// 2 // 3 // The LLVM Compiler Infrastructure 4 // 5 // This file is distributed under the University of Illinois Open Source 6 // License. See LICENSE.TXT for details. 7 // 8 //===----------------------------------------------------------------------===// 9 10 #include "SymbolFileDWARFDebugMap.h" 11 12 #include "DWARFDebugAranges.h" 13 14 #include "lldb/Core/RangeMap.h" 15 #include "lldb/Core/Module.h" 16 #include "lldb/Core/ModuleList.h" 17 #include "lldb/Core/PluginManager.h" 18 #include "lldb/Core/RegularExpression.h" 19 #include "lldb/Core/Section.h" 20 21 //#define DEBUG_OSO_DMAP // DO NOT CHECKIN WITH THIS NOT COMMENTED OUT 22 #if defined(DEBUG_OSO_DMAP) 23 #include "lldb/Core/StreamFile.h" 24 #endif 25 #include "lldb/Core/Timer.h" 26 27 #include "lldb/Symbol/ClangExternalASTSourceCallbacks.h" 28 #include "lldb/Symbol/CompileUnit.h" 29 #include "lldb/Symbol/LineTable.h" 30 #include "lldb/Symbol/ObjectFile.h" 31 #include "lldb/Symbol/SymbolVendor.h" 32 #include "lldb/Symbol/VariableList.h" 33 34 #include "LogChannelDWARF.h" 35 #include "SymbolFileDWARF.h" 36 37 using namespace lldb; 38 using namespace lldb_private; 39 40 // Subclass lldb_private::Module so we can intercept the "Module::GetObjectFile()" 41 // (so we can fixup the object file sections) and also for "Module::GetSymbolVendor()" 42 // (so we can fixup the symbol file id. 43 44 45 46 47 const SymbolFileDWARFDebugMap::FileRangeMap & 48 SymbolFileDWARFDebugMap::CompileUnitInfo::GetFileRangeMap(SymbolFileDWARFDebugMap *exe_symfile) 49 { 50 if (file_range_map_valid) 51 return file_range_map; 52 53 file_range_map_valid = true; 54 55 Module *oso_module = exe_symfile->GetModuleByCompUnitInfo (this); 56 if (!oso_module) 57 return file_range_map; 58 59 ObjectFile *oso_objfile = oso_module->GetObjectFile(); 60 if (!oso_objfile) 61 return file_range_map; 62 63 Log *log (LogChannelDWARF::GetLogIfAll(DWARF_LOG_DEBUG_MAP)); 64 if (log) 65 { 66 ConstString object_name (oso_module->GetObjectName()); 67 log->Printf("%p: SymbolFileDWARFDebugMap::CompileUnitInfo::GetFileRangeMap ('%s')", 68 static_cast<void*>(this), 69 oso_module->GetSpecificationDescription().c_str()); 70 } 71 72 std::vector<SymbolFileDWARFDebugMap::CompileUnitInfo *> cu_infos; 73 if (exe_symfile->GetCompUnitInfosForModule(oso_module, cu_infos)) 74 { 75 for (auto comp_unit_info : cu_infos) 76 { 77 Symtab *exe_symtab = exe_symfile->GetObjectFile()->GetSymtab(); 78 ModuleSP oso_module_sp (oso_objfile->GetModule()); 79 Symtab *oso_symtab = oso_objfile->GetSymtab(); 80 81 ///const uint32_t fun_resolve_flags = SymbolContext::Module | eSymbolContextCompUnit | eSymbolContextFunction; 82 //SectionList *oso_sections = oso_objfile->Sections(); 83 // Now we need to make sections that map from zero based object 84 // file addresses to where things eneded up in the main executable. 85 86 assert (comp_unit_info->first_symbol_index != UINT32_MAX); 87 // End index is one past the last valid symbol index 88 const uint32_t oso_end_idx = comp_unit_info->last_symbol_index + 1; 89 for (uint32_t idx = comp_unit_info->first_symbol_index + 2; // Skip the N_SO and N_OSO 90 idx < oso_end_idx; 91 ++idx) 92 { 93 Symbol *exe_symbol = exe_symtab->SymbolAtIndex(idx); 94 if (exe_symbol) 95 { 96 if (exe_symbol->IsDebug() == false) 97 continue; 98 99 switch (exe_symbol->GetType()) 100 { 101 default: 102 break; 103 104 case eSymbolTypeCode: 105 { 106 // For each N_FUN, or function that we run into in the debug map 107 // we make a new section that we add to the sections found in the 108 // .o file. This new section has the file address set to what the 109 // addresses are in the .o file, and the load address is adjusted 110 // to match where it ended up in the final executable! We do this 111 // before we parse any dwarf info so that when it goes get parsed 112 // all section/offset addresses that get registered will resolve 113 // correctly to the new addresses in the main executable. 114 115 // First we find the original symbol in the .o file's symbol table 116 Symbol *oso_fun_symbol = oso_symtab->FindFirstSymbolWithNameAndType (exe_symbol->GetMangled().GetName(Mangled::ePreferMangled), 117 eSymbolTypeCode, 118 Symtab::eDebugNo, 119 Symtab::eVisibilityAny); 120 if (oso_fun_symbol) 121 { 122 // Add the inverse OSO file address to debug map entry mapping 123 exe_symfile->AddOSOFileRange (this, 124 exe_symbol->GetAddress().GetFileAddress(), 125 oso_fun_symbol->GetAddress().GetFileAddress(), 126 std::min<addr_t>(exe_symbol->GetByteSize(), oso_fun_symbol->GetByteSize())); 127 128 } 129 } 130 break; 131 132 case eSymbolTypeData: 133 { 134 // For each N_GSYM we remap the address for the global by making 135 // a new section that we add to the sections found in the .o file. 136 // This new section has the file address set to what the 137 // addresses are in the .o file, and the load address is adjusted 138 // to match where it ended up in the final executable! We do this 139 // before we parse any dwarf info so that when it goes get parsed 140 // all section/offset addresses that get registered will resolve 141 // correctly to the new addresses in the main executable. We 142 // initially set the section size to be 1 byte, but will need to 143 // fix up these addresses further after all globals have been 144 // parsed to span the gaps, or we can find the global variable 145 // sizes from the DWARF info as we are parsing. 146 147 // Next we find the non-stab entry that corresponds to the N_GSYM in the .o file 148 Symbol *oso_gsym_symbol = oso_symtab->FindFirstSymbolWithNameAndType (exe_symbol->GetMangled().GetName(Mangled::ePreferMangled), 149 eSymbolTypeData, 150 Symtab::eDebugNo, 151 Symtab::eVisibilityAny); 152 if (exe_symbol && oso_gsym_symbol && 153 exe_symbol->ValueIsAddress() && 154 oso_gsym_symbol->ValueIsAddress()) 155 { 156 // Add the inverse OSO file address to debug map entry mapping 157 exe_symfile->AddOSOFileRange (this, 158 exe_symbol->GetAddress().GetFileAddress(), 159 oso_gsym_symbol->GetAddress().GetFileAddress(), 160 std::min<addr_t>(exe_symbol->GetByteSize(), oso_gsym_symbol->GetByteSize())); 161 } 162 } 163 break; 164 } 165 } 166 } 167 168 exe_symfile->FinalizeOSOFileRanges (this); 169 // We don't need the symbols anymore for the .o files 170 oso_objfile->ClearSymtab(); 171 } 172 } 173 return file_range_map; 174 } 175 176 177 class DebugMapModule : public Module 178 { 179 public: 180 DebugMapModule (const ModuleSP &exe_module_sp, 181 uint32_t cu_idx, 182 const FileSpec& file_spec, 183 const ArchSpec& arch, 184 const ConstString *object_name, 185 off_t object_offset, 186 const TimeValue *object_mod_time_ptr) : 187 Module (file_spec, arch, object_name, object_offset, object_mod_time_ptr), 188 m_exe_module_wp (exe_module_sp), 189 m_cu_idx (cu_idx) 190 { 191 } 192 193 virtual 194 ~DebugMapModule () 195 { 196 } 197 198 199 virtual SymbolVendor* 200 GetSymbolVendor(bool can_create = true, lldb_private::Stream *feedback_strm = NULL) 201 { 202 // Scope for locker 203 if (m_symfile_ap.get() || can_create == false) 204 return m_symfile_ap.get(); 205 206 ModuleSP exe_module_sp (m_exe_module_wp.lock()); 207 if (exe_module_sp) 208 { 209 // Now get the object file outside of a locking scope 210 ObjectFile *oso_objfile = GetObjectFile (); 211 if (oso_objfile) 212 { 213 Mutex::Locker locker (m_mutex); 214 SymbolVendor* symbol_vendor = Module::GetSymbolVendor(can_create, feedback_strm); 215 if (symbol_vendor) 216 { 217 // Set a a pointer to this class to set our OSO DWARF file know 218 // that the DWARF is being used along with a debug map and that 219 // it will have the remapped sections that we do below. 220 SymbolFileDWARF *oso_symfile = SymbolFileDWARFDebugMap::GetSymbolFileAsSymbolFileDWARF(symbol_vendor->GetSymbolFile()); 221 222 if (!oso_symfile) 223 return NULL; 224 225 ObjectFile *exe_objfile = exe_module_sp->GetObjectFile(); 226 SymbolVendor *exe_sym_vendor = exe_module_sp->GetSymbolVendor(); 227 228 if (exe_objfile && exe_sym_vendor) 229 { 230 if (oso_symfile->GetNumCompileUnits() == 1) 231 { 232 oso_symfile->SetDebugMapModule(exe_module_sp); 233 // Set the ID of the symbol file DWARF to the index of the OSO 234 // shifted left by 32 bits to provide a unique prefix for any 235 // UserID's that get created in the symbol file. 236 oso_symfile->SetID (((uint64_t)m_cu_idx + 1ull) << 32ull); 237 } 238 else 239 { 240 oso_symfile->SetID (UINT64_MAX); 241 } 242 } 243 return symbol_vendor; 244 } 245 } 246 } 247 return NULL; 248 } 249 250 protected: 251 ModuleWP m_exe_module_wp; 252 const uint32_t m_cu_idx; 253 }; 254 255 void 256 SymbolFileDWARFDebugMap::Initialize() 257 { 258 PluginManager::RegisterPlugin (GetPluginNameStatic(), 259 GetPluginDescriptionStatic(), 260 CreateInstance); 261 } 262 263 void 264 SymbolFileDWARFDebugMap::Terminate() 265 { 266 PluginManager::UnregisterPlugin (CreateInstance); 267 } 268 269 270 lldb_private::ConstString 271 SymbolFileDWARFDebugMap::GetPluginNameStatic() 272 { 273 static ConstString g_name("dwarf-debugmap"); 274 return g_name; 275 } 276 277 const char * 278 SymbolFileDWARFDebugMap::GetPluginDescriptionStatic() 279 { 280 return "DWARF and DWARF3 debug symbol file reader (debug map)."; 281 } 282 283 SymbolFile* 284 SymbolFileDWARFDebugMap::CreateInstance (ObjectFile* obj_file) 285 { 286 return new SymbolFileDWARFDebugMap (obj_file); 287 } 288 289 290 SymbolFileDWARFDebugMap::SymbolFileDWARFDebugMap (ObjectFile* ofile) : 291 SymbolFile(ofile), 292 m_flags(), 293 m_compile_unit_infos(), 294 m_func_indexes(), 295 m_glob_indexes(), 296 m_supports_DW_AT_APPLE_objc_complete_type (eLazyBoolCalculate) 297 { 298 } 299 300 301 SymbolFileDWARFDebugMap::~SymbolFileDWARFDebugMap() 302 { 303 } 304 305 void 306 SymbolFileDWARFDebugMap::InitializeObject() 307 { 308 // Install our external AST source callbacks so we can complete Clang types. 309 llvm::IntrusiveRefCntPtr<clang::ExternalASTSource> ast_source_ap ( 310 new ClangExternalASTSourceCallbacks (SymbolFileDWARFDebugMap::CompleteTagDecl, 311 SymbolFileDWARFDebugMap::CompleteObjCInterfaceDecl, 312 NULL, 313 SymbolFileDWARFDebugMap::LayoutRecordType, 314 this)); 315 316 GetClangASTContext().SetExternalSource (ast_source_ap); 317 } 318 319 void 320 SymbolFileDWARFDebugMap::InitOSO() 321 { 322 if (m_flags.test(kHaveInitializedOSOs)) 323 return; 324 325 m_flags.set(kHaveInitializedOSOs); 326 327 // If the object file has been stripped, there is no sense in looking further 328 // as all of the debug symbols for the debug map will not be available 329 if (m_obj_file->IsStripped()) 330 return; 331 332 // Also make sure the file type is some sort of executable. Core files, debug 333 // info files (dSYM), object files (.o files), and stub libraries all can 334 switch (m_obj_file->GetType()) 335 { 336 case ObjectFile::eTypeInvalid: 337 case ObjectFile::eTypeCoreFile: 338 case ObjectFile::eTypeDebugInfo: 339 case ObjectFile::eTypeObjectFile: 340 case ObjectFile::eTypeStubLibrary: 341 case ObjectFile::eTypeUnknown: 342 case ObjectFile::eTypeJIT: 343 return; 344 345 case ObjectFile::eTypeExecutable: 346 case ObjectFile::eTypeDynamicLinker: 347 case ObjectFile::eTypeSharedLibrary: 348 break; 349 } 350 351 // In order to get the abilities of this plug-in, we look at the list of 352 // N_OSO entries (object files) from the symbol table and make sure that 353 // these files exist and also contain valid DWARF. If we get any of that 354 // then we return the abilities of the first N_OSO's DWARF. 355 356 Symtab* symtab = m_obj_file->GetSymtab(); 357 if (symtab) 358 { 359 Log *log (LogChannelDWARF::GetLogIfAll(DWARF_LOG_DEBUG_MAP)); 360 361 std::vector<uint32_t> oso_indexes; 362 // When a mach-o symbol is encoded, the n_type field is encoded in bits 363 // 23:16, and the n_desc field is encoded in bits 15:0. 364 // 365 // To find all N_OSO entries that are part of the DWARF + debug map 366 // we find only object file symbols with the flags value as follows: 367 // bits 23:16 == 0x66 (N_OSO) 368 // bits 15: 0 == 0x0001 (specifies this is a debug map object file) 369 const uint32_t k_oso_symbol_flags_value = 0x660001u; 370 371 const uint32_t oso_index_count = symtab->AppendSymbolIndexesWithTypeAndFlagsValue(eSymbolTypeObjectFile, k_oso_symbol_flags_value, oso_indexes); 372 373 if (oso_index_count > 0) 374 { 375 symtab->AppendSymbolIndexesWithType (eSymbolTypeCode, Symtab::eDebugYes, Symtab::eVisibilityAny, m_func_indexes); 376 symtab->AppendSymbolIndexesWithType (eSymbolTypeData, Symtab::eDebugYes, Symtab::eVisibilityAny, m_glob_indexes); 377 378 symtab->SortSymbolIndexesByValue(m_func_indexes, true); 379 symtab->SortSymbolIndexesByValue(m_glob_indexes, true); 380 381 for (uint32_t sym_idx : m_func_indexes) 382 { 383 const Symbol *symbol = symtab->SymbolAtIndex(sym_idx); 384 lldb::addr_t file_addr = symbol->GetAddress().GetFileAddress(); 385 lldb::addr_t byte_size = symbol->GetByteSize(); 386 DebugMap::Entry debug_map_entry(file_addr, byte_size, OSOEntry(sym_idx, LLDB_INVALID_ADDRESS)); 387 m_debug_map.Append(debug_map_entry); 388 } 389 for (uint32_t sym_idx : m_glob_indexes) 390 { 391 const Symbol *symbol = symtab->SymbolAtIndex(sym_idx); 392 lldb::addr_t file_addr = symbol->GetAddress().GetFileAddress(); 393 lldb::addr_t byte_size = symbol->GetByteSize(); 394 DebugMap::Entry debug_map_entry(file_addr, byte_size, OSOEntry(sym_idx, LLDB_INVALID_ADDRESS)); 395 m_debug_map.Append(debug_map_entry); 396 } 397 m_debug_map.Sort(); 398 399 m_compile_unit_infos.resize(oso_index_count); 400 401 for (uint32_t i=0; i<oso_index_count; ++i) 402 { 403 const uint32_t so_idx = oso_indexes[i] - 1; 404 const uint32_t oso_idx = oso_indexes[i]; 405 const Symbol *so_symbol = symtab->SymbolAtIndex(so_idx); 406 const Symbol *oso_symbol = symtab->SymbolAtIndex(oso_idx); 407 if (so_symbol && 408 oso_symbol && 409 so_symbol->GetType() == eSymbolTypeSourceFile && 410 oso_symbol->GetType() == eSymbolTypeObjectFile) 411 { 412 m_compile_unit_infos[i].so_file.SetFile(so_symbol->GetName().AsCString(), false); 413 m_compile_unit_infos[i].oso_path = oso_symbol->GetName(); 414 TimeValue oso_mod_time; 415 oso_mod_time.OffsetWithSeconds(oso_symbol->GetAddress().GetOffset()); 416 m_compile_unit_infos[i].oso_mod_time = oso_mod_time; 417 uint32_t sibling_idx = so_symbol->GetSiblingIndex(); 418 // The sibling index can't be less that or equal to the current index "i" 419 if (sibling_idx <= i) 420 { 421 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()); 422 } 423 else 424 { 425 const Symbol* last_symbol = symtab->SymbolAtIndex (sibling_idx - 1); 426 m_compile_unit_infos[i].first_symbol_index = so_idx; 427 m_compile_unit_infos[i].last_symbol_index = sibling_idx - 1; 428 m_compile_unit_infos[i].first_symbol_id = so_symbol->GetID(); 429 m_compile_unit_infos[i].last_symbol_id = last_symbol->GetID(); 430 431 if (log) 432 log->Printf("Initialized OSO 0x%8.8x: file=%s", i, oso_symbol->GetName().GetCString()); 433 } 434 } 435 else 436 { 437 if (oso_symbol == NULL) 438 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); 439 else if (so_symbol == NULL) 440 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); 441 else if (so_symbol->GetType() != eSymbolTypeSourceFile) 442 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); 443 else if (oso_symbol->GetType() != eSymbolTypeSourceFile) 444 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); 445 } 446 } 447 } 448 } 449 } 450 451 Module * 452 SymbolFileDWARFDebugMap::GetModuleByOSOIndex (uint32_t oso_idx) 453 { 454 const uint32_t cu_count = GetNumCompileUnits(); 455 if (oso_idx < cu_count) 456 return GetModuleByCompUnitInfo (&m_compile_unit_infos[oso_idx]); 457 return NULL; 458 } 459 460 Module * 461 SymbolFileDWARFDebugMap::GetModuleByCompUnitInfo (CompileUnitInfo *comp_unit_info) 462 { 463 if (!comp_unit_info->oso_sp) 464 { 465 auto pos = m_oso_map.find (comp_unit_info->oso_path); 466 if (pos != m_oso_map.end()) 467 { 468 comp_unit_info->oso_sp = pos->second; 469 } 470 else 471 { 472 ObjectFile *obj_file = GetObjectFile(); 473 comp_unit_info->oso_sp.reset (new OSOInfo()); 474 m_oso_map[comp_unit_info->oso_path] = comp_unit_info->oso_sp; 475 const char *oso_path = comp_unit_info->oso_path.GetCString(); 476 FileSpec oso_file (oso_path, false); 477 ConstString oso_object; 478 if (oso_file.Exists()) 479 { 480 TimeValue oso_mod_time (oso_file.GetModificationTime()); 481 if (oso_mod_time != comp_unit_info->oso_mod_time) 482 { 483 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", 484 oso_file.GetPath().c_str(), 485 oso_mod_time.GetAsSecondsSinceJan1_1970(), 486 comp_unit_info->oso_mod_time.GetAsSecondsSinceJan1_1970()); 487 return NULL; 488 } 489 490 } 491 else 492 { 493 const bool must_exist = true; 494 495 if (!ObjectFile::SplitArchivePathWithObject (oso_path, 496 oso_file, 497 oso_object, 498 must_exist)) 499 { 500 return NULL; 501 } 502 } 503 // Always create a new module for .o files. Why? Because we 504 // use the debug map, to add new sections to each .o file and 505 // even though a .o file might not have changed, the sections 506 // that get added to the .o file can change. 507 comp_unit_info->oso_sp->module_sp.reset (new DebugMapModule (obj_file->GetModule(), 508 GetCompUnitInfoIndex(comp_unit_info), 509 oso_file, 510 m_obj_file->GetModule()->GetArchitecture(), 511 oso_object ? &oso_object : NULL, 512 0, 513 oso_object ? &comp_unit_info->oso_mod_time : NULL)); 514 } 515 } 516 if (comp_unit_info->oso_sp) 517 return comp_unit_info->oso_sp->module_sp.get(); 518 return NULL; 519 } 520 521 522 bool 523 SymbolFileDWARFDebugMap::GetFileSpecForSO (uint32_t oso_idx, FileSpec &file_spec) 524 { 525 if (oso_idx < m_compile_unit_infos.size()) 526 { 527 if (m_compile_unit_infos[oso_idx].so_file) 528 { 529 file_spec = m_compile_unit_infos[oso_idx].so_file; 530 return true; 531 } 532 } 533 return false; 534 } 535 536 537 538 ObjectFile * 539 SymbolFileDWARFDebugMap::GetObjectFileByOSOIndex (uint32_t oso_idx) 540 { 541 Module *oso_module = GetModuleByOSOIndex (oso_idx); 542 if (oso_module) 543 return oso_module->GetObjectFile(); 544 return NULL; 545 } 546 547 SymbolFileDWARF * 548 SymbolFileDWARFDebugMap::GetSymbolFile (const SymbolContext& sc) 549 { 550 CompileUnitInfo *comp_unit_info = GetCompUnitInfo (sc); 551 if (comp_unit_info) 552 return GetSymbolFileByCompUnitInfo (comp_unit_info); 553 return NULL; 554 } 555 556 ObjectFile * 557 SymbolFileDWARFDebugMap::GetObjectFileByCompUnitInfo (CompileUnitInfo *comp_unit_info) 558 { 559 Module *oso_module = GetModuleByCompUnitInfo (comp_unit_info); 560 if (oso_module) 561 return oso_module->GetObjectFile(); 562 return NULL; 563 } 564 565 566 uint32_t 567 SymbolFileDWARFDebugMap::GetCompUnitInfoIndex (const CompileUnitInfo *comp_unit_info) 568 { 569 if (!m_compile_unit_infos.empty()) 570 { 571 const CompileUnitInfo *first_comp_unit_info = &m_compile_unit_infos.front(); 572 const CompileUnitInfo *last_comp_unit_info = &m_compile_unit_infos.back(); 573 if (first_comp_unit_info <= comp_unit_info && comp_unit_info <= last_comp_unit_info) 574 return comp_unit_info - first_comp_unit_info; 575 } 576 return UINT32_MAX; 577 } 578 579 SymbolFileDWARF * 580 SymbolFileDWARFDebugMap::GetSymbolFileByOSOIndex (uint32_t oso_idx) 581 { 582 if (oso_idx < m_compile_unit_infos.size()) 583 return GetSymbolFileByCompUnitInfo (&m_compile_unit_infos[oso_idx]); 584 return NULL; 585 } 586 587 SymbolFileDWARF * 588 SymbolFileDWARFDebugMap::GetSymbolFileAsSymbolFileDWARF (SymbolFile *sym_file) 589 { 590 if (sym_file && sym_file->GetPluginName() == SymbolFileDWARF::GetPluginNameStatic()) 591 return (SymbolFileDWARF *)sym_file; 592 return NULL; 593 } 594 595 SymbolFileDWARF * 596 SymbolFileDWARFDebugMap::GetSymbolFileByCompUnitInfo (CompileUnitInfo *comp_unit_info) 597 { 598 Module *oso_module = GetModuleByCompUnitInfo (comp_unit_info); 599 if (oso_module) 600 { 601 SymbolVendor *sym_vendor = oso_module->GetSymbolVendor(); 602 if (sym_vendor) 603 return GetSymbolFileAsSymbolFileDWARF (sym_vendor->GetSymbolFile()); 604 } 605 return NULL; 606 } 607 608 uint32_t 609 SymbolFileDWARFDebugMap::CalculateAbilities () 610 { 611 // In order to get the abilities of this plug-in, we look at the list of 612 // N_OSO entries (object files) from the symbol table and make sure that 613 // these files exist and also contain valid DWARF. If we get any of that 614 // then we return the abilities of the first N_OSO's DWARF. 615 616 const uint32_t oso_index_count = GetNumCompileUnits(); 617 if (oso_index_count > 0) 618 { 619 InitOSO(); 620 if (!m_compile_unit_infos.empty()) 621 { 622 return SymbolFile::CompileUnits | 623 SymbolFile::Functions | 624 SymbolFile::Blocks | 625 SymbolFile::GlobalVariables | 626 SymbolFile::LocalVariables | 627 SymbolFile::VariableTypes | 628 SymbolFile::LineTables ; 629 } 630 } 631 return 0; 632 } 633 634 uint32_t 635 SymbolFileDWARFDebugMap::GetNumCompileUnits() 636 { 637 InitOSO (); 638 return m_compile_unit_infos.size(); 639 } 640 641 642 CompUnitSP 643 SymbolFileDWARFDebugMap::ParseCompileUnitAtIndex(uint32_t cu_idx) 644 { 645 CompUnitSP comp_unit_sp; 646 const uint32_t cu_count = GetNumCompileUnits(); 647 648 if (cu_idx < cu_count) 649 { 650 Module *oso_module = GetModuleByCompUnitInfo (&m_compile_unit_infos[cu_idx]); 651 if (oso_module) 652 { 653 FileSpec so_file_spec; 654 if (GetFileSpecForSO (cu_idx, so_file_spec)) 655 { 656 // User zero as the ID to match the compile unit at offset 657 // zero in each .o file since each .o file can only have 658 // one compile unit for now. 659 lldb::user_id_t cu_id = 0; 660 m_compile_unit_infos[cu_idx].compile_unit_sp.reset(new CompileUnit (m_obj_file->GetModule(), 661 NULL, 662 so_file_spec, 663 cu_id, 664 eLanguageTypeUnknown)); 665 666 if (m_compile_unit_infos[cu_idx].compile_unit_sp) 667 { 668 // Let our symbol vendor know about this compile unit 669 m_obj_file->GetModule()->GetSymbolVendor()->SetCompileUnitAtIndex (cu_idx, m_compile_unit_infos[cu_idx].compile_unit_sp); 670 } 671 } 672 } 673 comp_unit_sp = m_compile_unit_infos[cu_idx].compile_unit_sp; 674 } 675 676 return comp_unit_sp; 677 } 678 679 SymbolFileDWARFDebugMap::CompileUnitInfo * 680 SymbolFileDWARFDebugMap::GetCompUnitInfo (const SymbolContext& sc) 681 { 682 const uint32_t cu_count = GetNumCompileUnits(); 683 for (uint32_t i=0; i<cu_count; ++i) 684 { 685 if (sc.comp_unit == m_compile_unit_infos[i].compile_unit_sp.get()) 686 return &m_compile_unit_infos[i]; 687 } 688 return NULL; 689 } 690 691 692 size_t 693 SymbolFileDWARFDebugMap::GetCompUnitInfosForModule (const lldb_private::Module *module, std::vector<CompileUnitInfo *>& cu_infos) 694 { 695 const uint32_t cu_count = GetNumCompileUnits(); 696 for (uint32_t i=0; i<cu_count; ++i) 697 { 698 if (module == GetModuleByCompUnitInfo (&m_compile_unit_infos[i])) 699 cu_infos.push_back (&m_compile_unit_infos[i]); 700 } 701 return cu_infos.size(); 702 } 703 704 lldb::LanguageType 705 SymbolFileDWARFDebugMap::ParseCompileUnitLanguage (const SymbolContext& sc) 706 { 707 SymbolFileDWARF *oso_dwarf = GetSymbolFile (sc); 708 if (oso_dwarf) 709 return oso_dwarf->ParseCompileUnitLanguage (sc); 710 return eLanguageTypeUnknown; 711 } 712 713 size_t 714 SymbolFileDWARFDebugMap::ParseCompileUnitFunctions (const SymbolContext& sc) 715 { 716 SymbolFileDWARF *oso_dwarf = GetSymbolFile (sc); 717 if (oso_dwarf) 718 return oso_dwarf->ParseCompileUnitFunctions (sc); 719 return 0; 720 } 721 722 bool 723 SymbolFileDWARFDebugMap::ParseCompileUnitLineTable (const SymbolContext& sc) 724 { 725 SymbolFileDWARF *oso_dwarf = GetSymbolFile (sc); 726 if (oso_dwarf) 727 return oso_dwarf->ParseCompileUnitLineTable (sc); 728 return false; 729 } 730 731 bool 732 SymbolFileDWARFDebugMap::ParseCompileUnitSupportFiles (const SymbolContext& sc, FileSpecList &support_files) 733 { 734 SymbolFileDWARF *oso_dwarf = GetSymbolFile (sc); 735 if (oso_dwarf) 736 return oso_dwarf->ParseCompileUnitSupportFiles (sc, support_files); 737 return false; 738 } 739 740 741 size_t 742 SymbolFileDWARFDebugMap::ParseFunctionBlocks (const SymbolContext& sc) 743 { 744 SymbolFileDWARF *oso_dwarf = GetSymbolFile (sc); 745 if (oso_dwarf) 746 return oso_dwarf->ParseFunctionBlocks (sc); 747 return 0; 748 } 749 750 751 size_t 752 SymbolFileDWARFDebugMap::ParseTypes (const SymbolContext& sc) 753 { 754 SymbolFileDWARF *oso_dwarf = GetSymbolFile (sc); 755 if (oso_dwarf) 756 return oso_dwarf->ParseTypes (sc); 757 return 0; 758 } 759 760 761 size_t 762 SymbolFileDWARFDebugMap::ParseVariablesForContext (const SymbolContext& sc) 763 { 764 SymbolFileDWARF *oso_dwarf = GetSymbolFile (sc); 765 if (oso_dwarf) 766 return oso_dwarf->ParseVariablesForContext (sc); 767 return 0; 768 } 769 770 771 772 Type* 773 SymbolFileDWARFDebugMap::ResolveTypeUID(lldb::user_id_t type_uid) 774 { 775 const uint64_t oso_idx = GetOSOIndexFromUserID (type_uid); 776 SymbolFileDWARF *oso_dwarf = GetSymbolFileByOSOIndex (oso_idx); 777 if (oso_dwarf) 778 return oso_dwarf->ResolveTypeUID (type_uid); 779 return NULL; 780 } 781 782 bool 783 SymbolFileDWARFDebugMap::ResolveClangOpaqueTypeDefinition (ClangASTType& clang_type) 784 { 785 // We have a struct/union/class/enum that needs to be fully resolved. 786 return false; 787 } 788 789 uint32_t 790 SymbolFileDWARFDebugMap::ResolveSymbolContext (const Address& exe_so_addr, uint32_t resolve_scope, SymbolContext& sc) 791 { 792 uint32_t resolved_flags = 0; 793 Symtab* symtab = m_obj_file->GetSymtab(); 794 if (symtab) 795 { 796 const addr_t exe_file_addr = exe_so_addr.GetFileAddress(); 797 798 const DebugMap::Entry *debug_map_entry = m_debug_map.FindEntryThatContains (exe_file_addr); 799 if (debug_map_entry) 800 { 801 802 sc.symbol = symtab->SymbolAtIndex(debug_map_entry->data.GetExeSymbolIndex()); 803 804 if (sc.symbol != NULL) 805 { 806 resolved_flags |= eSymbolContextSymbol; 807 808 uint32_t oso_idx = 0; 809 CompileUnitInfo* comp_unit_info = GetCompileUnitInfoForSymbolWithID (sc.symbol->GetID(), &oso_idx); 810 if (comp_unit_info) 811 { 812 comp_unit_info->GetFileRangeMap(this); 813 Module *oso_module = GetModuleByCompUnitInfo (comp_unit_info); 814 if (oso_module) 815 { 816 lldb::addr_t oso_file_addr = exe_file_addr - debug_map_entry->GetRangeBase() + debug_map_entry->data.GetOSOFileAddress(); 817 Address oso_so_addr; 818 if (oso_module->ResolveFileAddress(oso_file_addr, oso_so_addr)) 819 { 820 resolved_flags |= oso_module->GetSymbolVendor()->ResolveSymbolContext (oso_so_addr, resolve_scope, sc); 821 } 822 } 823 } 824 } 825 } 826 } 827 return resolved_flags; 828 } 829 830 831 uint32_t 832 SymbolFileDWARFDebugMap::ResolveSymbolContext (const FileSpec& file_spec, uint32_t line, bool check_inlines, uint32_t resolve_scope, SymbolContextList& sc_list) 833 { 834 const uint32_t initial = sc_list.GetSize(); 835 const uint32_t cu_count = GetNumCompileUnits(); 836 837 for (uint32_t i=0; i<cu_count; ++i) 838 { 839 // If we are checking for inlines, then we need to look through all 840 // compile units no matter if "file_spec" matches. 841 bool resolve = check_inlines; 842 843 if (!resolve) 844 { 845 FileSpec so_file_spec; 846 if (GetFileSpecForSO (i, so_file_spec)) 847 { 848 // Match the full path if the incoming file_spec has a directory (not just a basename) 849 const bool full_match = (bool)file_spec.GetDirectory(); 850 resolve = FileSpec::Equal (file_spec, so_file_spec, full_match); 851 } 852 } 853 if (resolve) 854 { 855 SymbolFileDWARF *oso_dwarf = GetSymbolFileByOSOIndex (i); 856 if (oso_dwarf) 857 oso_dwarf->ResolveSymbolContext(file_spec, line, check_inlines, resolve_scope, sc_list); 858 } 859 } 860 return sc_list.GetSize() - initial; 861 } 862 863 uint32_t 864 SymbolFileDWARFDebugMap::PrivateFindGlobalVariables 865 ( 866 const ConstString &name, 867 const ClangNamespaceDecl *namespace_decl, 868 const std::vector<uint32_t> &indexes, // Indexes into the symbol table that match "name" 869 uint32_t max_matches, 870 VariableList& variables 871 ) 872 { 873 const uint32_t original_size = variables.GetSize(); 874 const size_t match_count = indexes.size(); 875 for (size_t i=0; i<match_count; ++i) 876 { 877 uint32_t oso_idx; 878 CompileUnitInfo* comp_unit_info = GetCompileUnitInfoForSymbolWithIndex (indexes[i], &oso_idx); 879 if (comp_unit_info) 880 { 881 SymbolFileDWARF *oso_dwarf = GetSymbolFileByOSOIndex (oso_idx); 882 if (oso_dwarf) 883 { 884 if (oso_dwarf->FindGlobalVariables(name, namespace_decl, true, max_matches, variables)) 885 if (variables.GetSize() > max_matches) 886 break; 887 } 888 } 889 } 890 return variables.GetSize() - original_size; 891 } 892 893 uint32_t 894 SymbolFileDWARFDebugMap::FindGlobalVariables (const ConstString &name, const ClangNamespaceDecl *namespace_decl, bool append, uint32_t max_matches, VariableList& variables) 895 { 896 897 // If we aren't appending the results to this list, then clear the list 898 if (!append) 899 variables.Clear(); 900 901 // Remember how many variables are in the list before we search in case 902 // we are appending the results to a variable list. 903 const uint32_t original_size = variables.GetSize(); 904 905 uint32_t total_matches = 0; 906 SymbolFileDWARF *oso_dwarf; 907 for (uint32_t oso_idx = 0; ((oso_dwarf = GetSymbolFileByOSOIndex (oso_idx)) != NULL); ++oso_idx) 908 { 909 const uint32_t oso_matches = oso_dwarf->FindGlobalVariables (name, 910 namespace_decl, 911 true, 912 max_matches, 913 variables); 914 if (oso_matches > 0) 915 { 916 total_matches += oso_matches; 917 918 // Are we getting all matches? 919 if (max_matches == UINT32_MAX) 920 continue; // Yep, continue getting everything 921 922 // If we have found enough matches, lets get out 923 if (max_matches >= total_matches) 924 break; 925 926 // Update the max matches for any subsequent calls to find globals 927 // in any other object files with DWARF 928 max_matches -= oso_matches; 929 } 930 } 931 // Return the number of variable that were appended to the list 932 return variables.GetSize() - original_size; 933 } 934 935 936 uint32_t 937 SymbolFileDWARFDebugMap::FindGlobalVariables (const RegularExpression& regex, bool append, uint32_t max_matches, VariableList& variables) 938 { 939 // If we aren't appending the results to this list, then clear the list 940 if (!append) 941 variables.Clear(); 942 943 // Remember how many variables are in the list before we search in case 944 // we are appending the results to a variable list. 945 const uint32_t original_size = variables.GetSize(); 946 947 uint32_t total_matches = 0; 948 SymbolFileDWARF *oso_dwarf; 949 for (uint32_t oso_idx = 0; ((oso_dwarf = GetSymbolFileByOSOIndex (oso_idx)) != NULL); ++oso_idx) 950 { 951 const uint32_t oso_matches = oso_dwarf->FindGlobalVariables (regex, 952 true, 953 max_matches, 954 variables); 955 if (oso_matches > 0) 956 { 957 total_matches += oso_matches; 958 959 // Are we getting all matches? 960 if (max_matches == UINT32_MAX) 961 continue; // Yep, continue getting everything 962 963 // If we have found enough matches, lets get out 964 if (max_matches >= total_matches) 965 break; 966 967 // Update the max matches for any subsequent calls to find globals 968 // in any other object files with DWARF 969 max_matches -= oso_matches; 970 } 971 } 972 // Return the number of variable that were appended to the list 973 return variables.GetSize() - original_size; 974 } 975 976 977 int 978 SymbolFileDWARFDebugMap::SymbolContainsSymbolWithIndex (uint32_t *symbol_idx_ptr, const CompileUnitInfo *comp_unit_info) 979 { 980 const uint32_t symbol_idx = *symbol_idx_ptr; 981 982 if (symbol_idx < comp_unit_info->first_symbol_index) 983 return -1; 984 985 if (symbol_idx <= comp_unit_info->last_symbol_index) 986 return 0; 987 988 return 1; 989 } 990 991 992 int 993 SymbolFileDWARFDebugMap::SymbolContainsSymbolWithID (user_id_t *symbol_idx_ptr, const CompileUnitInfo *comp_unit_info) 994 { 995 const user_id_t symbol_id = *symbol_idx_ptr; 996 997 if (symbol_id < comp_unit_info->first_symbol_id) 998 return -1; 999 1000 if (symbol_id <= comp_unit_info->last_symbol_id) 1001 return 0; 1002 1003 return 1; 1004 } 1005 1006 1007 SymbolFileDWARFDebugMap::CompileUnitInfo* 1008 SymbolFileDWARFDebugMap::GetCompileUnitInfoForSymbolWithIndex (uint32_t symbol_idx, uint32_t *oso_idx_ptr) 1009 { 1010 const uint32_t oso_index_count = m_compile_unit_infos.size(); 1011 CompileUnitInfo *comp_unit_info = NULL; 1012 if (oso_index_count) 1013 { 1014 comp_unit_info = (CompileUnitInfo*)bsearch(&symbol_idx, 1015 &m_compile_unit_infos[0], 1016 m_compile_unit_infos.size(), 1017 sizeof(CompileUnitInfo), 1018 (ComparisonFunction)SymbolContainsSymbolWithIndex); 1019 } 1020 1021 if (oso_idx_ptr) 1022 { 1023 if (comp_unit_info != NULL) 1024 *oso_idx_ptr = comp_unit_info - &m_compile_unit_infos[0]; 1025 else 1026 *oso_idx_ptr = UINT32_MAX; 1027 } 1028 return comp_unit_info; 1029 } 1030 1031 SymbolFileDWARFDebugMap::CompileUnitInfo* 1032 SymbolFileDWARFDebugMap::GetCompileUnitInfoForSymbolWithID (user_id_t symbol_id, uint32_t *oso_idx_ptr) 1033 { 1034 const uint32_t oso_index_count = m_compile_unit_infos.size(); 1035 CompileUnitInfo *comp_unit_info = NULL; 1036 if (oso_index_count) 1037 { 1038 comp_unit_info = (CompileUnitInfo*)::bsearch (&symbol_id, 1039 &m_compile_unit_infos[0], 1040 m_compile_unit_infos.size(), 1041 sizeof(CompileUnitInfo), 1042 (ComparisonFunction)SymbolContainsSymbolWithID); 1043 } 1044 1045 if (oso_idx_ptr) 1046 { 1047 if (comp_unit_info != NULL) 1048 *oso_idx_ptr = comp_unit_info - &m_compile_unit_infos[0]; 1049 else 1050 *oso_idx_ptr = UINT32_MAX; 1051 } 1052 return comp_unit_info; 1053 } 1054 1055 1056 static void 1057 RemoveFunctionsWithModuleNotEqualTo (const ModuleSP &module_sp, SymbolContextList &sc_list, uint32_t start_idx) 1058 { 1059 // We found functions in .o files. Not all functions in the .o files 1060 // will have made it into the final output file. The ones that did 1061 // make it into the final output file will have a section whose module 1062 // matches the module from the ObjectFile for this SymbolFile. When 1063 // the modules don't match, then we have something that was in a 1064 // .o file, but doesn't map to anything in the final executable. 1065 uint32_t i=start_idx; 1066 while (i < sc_list.GetSize()) 1067 { 1068 SymbolContext sc; 1069 sc_list.GetContextAtIndex(i, sc); 1070 if (sc.function) 1071 { 1072 const SectionSP section_sp (sc.function->GetAddressRange().GetBaseAddress().GetSection()); 1073 if (section_sp->GetModule() != module_sp) 1074 { 1075 sc_list.RemoveContextAtIndex(i); 1076 continue; 1077 } 1078 } 1079 ++i; 1080 } 1081 } 1082 1083 uint32_t 1084 SymbolFileDWARFDebugMap::FindFunctions(const ConstString &name, const ClangNamespaceDecl *namespace_decl, uint32_t name_type_mask, bool include_inlines, bool append, SymbolContextList& sc_list) 1085 { 1086 Timer scoped_timer (__PRETTY_FUNCTION__, 1087 "SymbolFileDWARFDebugMap::FindFunctions (name = %s)", 1088 name.GetCString()); 1089 1090 uint32_t initial_size = 0; 1091 if (append) 1092 initial_size = sc_list.GetSize(); 1093 else 1094 sc_list.Clear(); 1095 1096 uint32_t oso_idx = 0; 1097 SymbolFileDWARF *oso_dwarf; 1098 while ((oso_dwarf = GetSymbolFileByOSOIndex (oso_idx++)) != NULL) 1099 { 1100 uint32_t sc_idx = sc_list.GetSize(); 1101 if (oso_dwarf->FindFunctions(name, namespace_decl, name_type_mask, include_inlines, true, sc_list)) 1102 { 1103 RemoveFunctionsWithModuleNotEqualTo (m_obj_file->GetModule(), sc_list, sc_idx); 1104 } 1105 } 1106 1107 return sc_list.GetSize() - initial_size; 1108 } 1109 1110 1111 uint32_t 1112 SymbolFileDWARFDebugMap::FindFunctions (const RegularExpression& regex, bool include_inlines, bool append, SymbolContextList& sc_list) 1113 { 1114 Timer scoped_timer (__PRETTY_FUNCTION__, 1115 "SymbolFileDWARFDebugMap::FindFunctions (regex = '%s')", 1116 regex.GetText()); 1117 1118 uint32_t initial_size = 0; 1119 if (append) 1120 initial_size = sc_list.GetSize(); 1121 else 1122 sc_list.Clear(); 1123 1124 uint32_t oso_idx = 0; 1125 SymbolFileDWARF *oso_dwarf; 1126 while ((oso_dwarf = GetSymbolFileByOSOIndex (oso_idx++)) != NULL) 1127 { 1128 uint32_t sc_idx = sc_list.GetSize(); 1129 1130 if (oso_dwarf->FindFunctions(regex, include_inlines, true, sc_list)) 1131 { 1132 RemoveFunctionsWithModuleNotEqualTo (m_obj_file->GetModule(), sc_list, sc_idx); 1133 } 1134 } 1135 1136 return sc_list.GetSize() - initial_size; 1137 } 1138 1139 size_t 1140 SymbolFileDWARFDebugMap::GetTypes (SymbolContextScope *sc_scope, 1141 uint32_t type_mask, 1142 TypeList &type_list) 1143 { 1144 Timer scoped_timer (__PRETTY_FUNCTION__, 1145 "SymbolFileDWARFDebugMap::GetTypes (type_mask = 0x%8.8x)", 1146 type_mask); 1147 1148 1149 uint32_t initial_size = type_list.GetSize(); 1150 SymbolFileDWARF *oso_dwarf = NULL; 1151 if (sc_scope) 1152 { 1153 SymbolContext sc; 1154 sc_scope->CalculateSymbolContext(&sc); 1155 1156 CompileUnitInfo *cu_info = GetCompUnitInfo (sc); 1157 if (cu_info) 1158 { 1159 oso_dwarf = GetSymbolFileByCompUnitInfo (cu_info); 1160 if (oso_dwarf) 1161 oso_dwarf->GetTypes (sc_scope, type_mask, type_list); 1162 } 1163 } 1164 else 1165 { 1166 uint32_t oso_idx = 0; 1167 while ((oso_dwarf = GetSymbolFileByOSOIndex (oso_idx++)) != NULL) 1168 { 1169 oso_dwarf->GetTypes (sc_scope, type_mask, type_list); 1170 } 1171 } 1172 return type_list.GetSize() - initial_size; 1173 } 1174 1175 1176 TypeSP 1177 SymbolFileDWARFDebugMap::FindDefinitionTypeForDWARFDeclContext (const DWARFDeclContext &die_decl_ctx) 1178 { 1179 TypeSP type_sp; 1180 SymbolFileDWARF *oso_dwarf; 1181 for (uint32_t oso_idx = 0; ((oso_dwarf = GetSymbolFileByOSOIndex (oso_idx)) != NULL); ++oso_idx) 1182 { 1183 type_sp = oso_dwarf->FindDefinitionTypeForDWARFDeclContext (die_decl_ctx); 1184 if (type_sp) 1185 break; 1186 } 1187 return type_sp; 1188 } 1189 1190 1191 1192 bool 1193 SymbolFileDWARFDebugMap::Supports_DW_AT_APPLE_objc_complete_type (SymbolFileDWARF *skip_dwarf_oso) 1194 { 1195 if (m_supports_DW_AT_APPLE_objc_complete_type == eLazyBoolCalculate) 1196 { 1197 m_supports_DW_AT_APPLE_objc_complete_type = eLazyBoolNo; 1198 SymbolFileDWARF *oso_dwarf; 1199 for (uint32_t oso_idx = 0; ((oso_dwarf = GetSymbolFileByOSOIndex (oso_idx)) != NULL); ++oso_idx) 1200 { 1201 if (skip_dwarf_oso != oso_dwarf && oso_dwarf->Supports_DW_AT_APPLE_objc_complete_type(NULL)) 1202 { 1203 m_supports_DW_AT_APPLE_objc_complete_type = eLazyBoolYes; 1204 break; 1205 } 1206 } 1207 } 1208 return m_supports_DW_AT_APPLE_objc_complete_type == eLazyBoolYes; 1209 } 1210 1211 TypeSP 1212 SymbolFileDWARFDebugMap::FindCompleteObjCDefinitionTypeForDIE (const DWARFDebugInfoEntry *die, 1213 const ConstString &type_name, 1214 bool must_be_implementation) 1215 { 1216 TypeSP type_sp; 1217 SymbolFileDWARF *oso_dwarf; 1218 for (uint32_t oso_idx = 0; ((oso_dwarf = GetSymbolFileByOSOIndex (oso_idx)) != NULL); ++oso_idx) 1219 { 1220 type_sp = oso_dwarf->FindCompleteObjCDefinitionTypeForDIE (die, type_name, must_be_implementation); 1221 if (type_sp) 1222 break; 1223 } 1224 return type_sp; 1225 } 1226 1227 uint32_t 1228 SymbolFileDWARFDebugMap::FindTypes 1229 ( 1230 const SymbolContext& sc, 1231 const ConstString &name, 1232 const ClangNamespaceDecl *namespace_decl, 1233 bool append, 1234 uint32_t max_matches, 1235 TypeList& types 1236 ) 1237 { 1238 if (!append) 1239 types.Clear(); 1240 1241 const uint32_t initial_types_size = types.GetSize(); 1242 SymbolFileDWARF *oso_dwarf; 1243 1244 if (sc.comp_unit) 1245 { 1246 oso_dwarf = GetSymbolFile (sc); 1247 if (oso_dwarf) 1248 return oso_dwarf->FindTypes (sc, name, namespace_decl, append, max_matches, types); 1249 } 1250 else 1251 { 1252 uint32_t oso_idx = 0; 1253 while ((oso_dwarf = GetSymbolFileByOSOIndex (oso_idx++)) != NULL) 1254 oso_dwarf->FindTypes (sc, name, namespace_decl, append, max_matches, types); 1255 } 1256 1257 return types.GetSize() - initial_types_size; 1258 } 1259 1260 // 1261 //uint32_t 1262 //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) 1263 //{ 1264 // SymbolFileDWARF *oso_dwarf = GetSymbolFile (sc); 1265 // if (oso_dwarf) 1266 // return oso_dwarf->FindTypes (sc, regex, append, max_matches, encoding, udt_uid, types); 1267 // return 0; 1268 //} 1269 1270 1271 ClangNamespaceDecl 1272 SymbolFileDWARFDebugMap::FindNamespace (const lldb_private::SymbolContext& sc, 1273 const lldb_private::ConstString &name, 1274 const ClangNamespaceDecl *parent_namespace_decl) 1275 { 1276 ClangNamespaceDecl matching_namespace; 1277 SymbolFileDWARF *oso_dwarf; 1278 1279 if (sc.comp_unit) 1280 { 1281 oso_dwarf = GetSymbolFile (sc); 1282 if (oso_dwarf) 1283 matching_namespace = oso_dwarf->FindNamespace (sc, name, parent_namespace_decl); 1284 } 1285 else 1286 { 1287 for (uint32_t oso_idx = 0; 1288 ((oso_dwarf = GetSymbolFileByOSOIndex (oso_idx)) != NULL); 1289 ++oso_idx) 1290 { 1291 matching_namespace = oso_dwarf->FindNamespace (sc, name, parent_namespace_decl); 1292 1293 if (matching_namespace) 1294 break; 1295 } 1296 } 1297 1298 return matching_namespace; 1299 } 1300 1301 //------------------------------------------------------------------ 1302 // PluginInterface protocol 1303 //------------------------------------------------------------------ 1304 lldb_private::ConstString 1305 SymbolFileDWARFDebugMap::GetPluginName() 1306 { 1307 return GetPluginNameStatic(); 1308 } 1309 1310 uint32_t 1311 SymbolFileDWARFDebugMap::GetPluginVersion() 1312 { 1313 return 1; 1314 } 1315 1316 lldb::CompUnitSP 1317 SymbolFileDWARFDebugMap::GetCompileUnit (SymbolFileDWARF *oso_dwarf) 1318 { 1319 if (oso_dwarf) 1320 { 1321 const uint32_t cu_count = GetNumCompileUnits(); 1322 for (uint32_t cu_idx=0; cu_idx<cu_count; ++cu_idx) 1323 { 1324 SymbolFileDWARF *oso_symfile = GetSymbolFileByCompUnitInfo (&m_compile_unit_infos[cu_idx]); 1325 if (oso_symfile == oso_dwarf) 1326 { 1327 if (!m_compile_unit_infos[cu_idx].compile_unit_sp) 1328 m_compile_unit_infos[cu_idx].compile_unit_sp = ParseCompileUnitAtIndex (cu_idx); 1329 1330 return m_compile_unit_infos[cu_idx].compile_unit_sp; 1331 } 1332 } 1333 } 1334 assert(!"this shouldn't happen"); 1335 return lldb::CompUnitSP(); 1336 } 1337 1338 SymbolFileDWARFDebugMap::CompileUnitInfo * 1339 SymbolFileDWARFDebugMap::GetCompileUnitInfo (SymbolFileDWARF *oso_dwarf) 1340 { 1341 if (oso_dwarf) 1342 { 1343 const uint32_t cu_count = GetNumCompileUnits(); 1344 for (uint32_t cu_idx=0; cu_idx<cu_count; ++cu_idx) 1345 { 1346 SymbolFileDWARF *oso_symfile = GetSymbolFileByCompUnitInfo (&m_compile_unit_infos[cu_idx]); 1347 if (oso_symfile == oso_dwarf) 1348 { 1349 return &m_compile_unit_infos[cu_idx]; 1350 } 1351 } 1352 } 1353 return NULL; 1354 } 1355 1356 1357 void 1358 SymbolFileDWARFDebugMap::SetCompileUnit (SymbolFileDWARF *oso_dwarf, const CompUnitSP &cu_sp) 1359 { 1360 if (oso_dwarf) 1361 { 1362 const uint32_t cu_count = GetNumCompileUnits(); 1363 for (uint32_t cu_idx=0; cu_idx<cu_count; ++cu_idx) 1364 { 1365 SymbolFileDWARF *oso_symfile = GetSymbolFileByCompUnitInfo (&m_compile_unit_infos[cu_idx]); 1366 if (oso_symfile == oso_dwarf) 1367 { 1368 if (m_compile_unit_infos[cu_idx].compile_unit_sp) 1369 { 1370 assert (m_compile_unit_infos[cu_idx].compile_unit_sp.get() == cu_sp.get()); 1371 } 1372 else 1373 { 1374 m_compile_unit_infos[cu_idx].compile_unit_sp = cu_sp; 1375 m_obj_file->GetModule()->GetSymbolVendor()->SetCompileUnitAtIndex(cu_idx, cu_sp); 1376 } 1377 } 1378 } 1379 } 1380 } 1381 1382 1383 void 1384 SymbolFileDWARFDebugMap::CompleteTagDecl (void *baton, clang::TagDecl *decl) 1385 { 1386 SymbolFileDWARFDebugMap *symbol_file_dwarf = (SymbolFileDWARFDebugMap *)baton; 1387 ClangASTType clang_type = symbol_file_dwarf->GetClangASTContext().GetTypeForDecl (decl); 1388 if (clang_type) 1389 { 1390 SymbolFileDWARF *oso_dwarf; 1391 1392 for (uint32_t oso_idx = 0; ((oso_dwarf = symbol_file_dwarf->GetSymbolFileByOSOIndex (oso_idx)) != NULL); ++oso_idx) 1393 { 1394 if (oso_dwarf->HasForwardDeclForClangType (clang_type)) 1395 { 1396 oso_dwarf->ResolveClangOpaqueTypeDefinition (clang_type); 1397 return; 1398 } 1399 } 1400 } 1401 } 1402 1403 void 1404 SymbolFileDWARFDebugMap::CompleteObjCInterfaceDecl (void *baton, clang::ObjCInterfaceDecl *decl) 1405 { 1406 SymbolFileDWARFDebugMap *symbol_file_dwarf = (SymbolFileDWARFDebugMap *)baton; 1407 ClangASTType clang_type = symbol_file_dwarf->GetClangASTContext().GetTypeForDecl (decl); 1408 if (clang_type) 1409 { 1410 SymbolFileDWARF *oso_dwarf; 1411 1412 for (uint32_t oso_idx = 0; ((oso_dwarf = symbol_file_dwarf->GetSymbolFileByOSOIndex (oso_idx)) != NULL); ++oso_idx) 1413 { 1414 if (oso_dwarf->HasForwardDeclForClangType (clang_type)) 1415 { 1416 oso_dwarf->ResolveClangOpaqueTypeDefinition (clang_type); 1417 return; 1418 } 1419 } 1420 } 1421 } 1422 1423 bool 1424 SymbolFileDWARFDebugMap::LayoutRecordType (void *baton, 1425 const clang::RecordDecl *record_decl, 1426 uint64_t &size, 1427 uint64_t &alignment, 1428 llvm::DenseMap <const clang::FieldDecl *, uint64_t> &field_offsets, 1429 llvm::DenseMap <const clang::CXXRecordDecl *, clang::CharUnits> &base_offsets, 1430 llvm::DenseMap <const clang::CXXRecordDecl *, clang::CharUnits> &vbase_offsets) 1431 { 1432 SymbolFileDWARFDebugMap *symbol_file_dwarf = (SymbolFileDWARFDebugMap *)baton; 1433 SymbolFileDWARF *oso_dwarf; 1434 for (uint32_t oso_idx = 0; ((oso_dwarf = symbol_file_dwarf->GetSymbolFileByOSOIndex (oso_idx)) != NULL); ++oso_idx) 1435 { 1436 if (oso_dwarf->LayoutRecordType (record_decl, size, alignment, field_offsets, base_offsets, vbase_offsets)) 1437 return true; 1438 } 1439 return false; 1440 } 1441 1442 1443 1444 clang::DeclContext* 1445 SymbolFileDWARFDebugMap::GetClangDeclContextContainingTypeUID (lldb::user_id_t type_uid) 1446 { 1447 const uint64_t oso_idx = GetOSOIndexFromUserID (type_uid); 1448 SymbolFileDWARF *oso_dwarf = GetSymbolFileByOSOIndex (oso_idx); 1449 if (oso_dwarf) 1450 return oso_dwarf->GetClangDeclContextContainingTypeUID (type_uid); 1451 return NULL; 1452 } 1453 1454 clang::DeclContext* 1455 SymbolFileDWARFDebugMap::GetClangDeclContextForTypeUID (const lldb_private::SymbolContext &sc, lldb::user_id_t type_uid) 1456 { 1457 const uint64_t oso_idx = GetOSOIndexFromUserID (type_uid); 1458 SymbolFileDWARF *oso_dwarf = GetSymbolFileByOSOIndex (oso_idx); 1459 if (oso_dwarf) 1460 return oso_dwarf->GetClangDeclContextForTypeUID (sc, type_uid); 1461 return NULL; 1462 } 1463 1464 bool 1465 SymbolFileDWARFDebugMap::AddOSOFileRange (CompileUnitInfo *cu_info, 1466 lldb::addr_t exe_file_addr, 1467 lldb::addr_t oso_file_addr, 1468 lldb::addr_t oso_byte_size) 1469 { 1470 const uint32_t debug_map_idx = m_debug_map.FindEntryIndexThatContains(exe_file_addr); 1471 if (debug_map_idx != UINT32_MAX) 1472 { 1473 DebugMap::Entry *debug_map_entry = m_debug_map.FindEntryThatContains(exe_file_addr); 1474 debug_map_entry->data.SetOSOFileAddress(oso_file_addr); 1475 cu_info->file_range_map.Append(FileRangeMap::Entry(oso_file_addr, oso_byte_size, exe_file_addr)); 1476 return true; 1477 } 1478 return false; 1479 } 1480 1481 void 1482 SymbolFileDWARFDebugMap::FinalizeOSOFileRanges (CompileUnitInfo *cu_info) 1483 { 1484 cu_info->file_range_map.Sort(); 1485 #if defined(DEBUG_OSO_DMAP) 1486 const FileRangeMap &oso_file_range_map = cu_info->GetFileRangeMap(this); 1487 const size_t n = oso_file_range_map.GetSize(); 1488 printf ("SymbolFileDWARFDebugMap::FinalizeOSOFileRanges (cu_info = %p) %s\n", 1489 cu_info, 1490 cu_info->oso_sp->module_sp->GetFileSpec().GetPath().c_str()); 1491 for (size_t i=0; i<n; ++i) 1492 { 1493 const FileRangeMap::Entry &entry = oso_file_range_map.GetEntryRef(i); 1494 printf ("oso [0x%16.16" PRIx64 " - 0x%16.16" PRIx64 ") ==> exe [0x%16.16" PRIx64 " - 0x%16.16" PRIx64 ")\n", 1495 entry.GetRangeBase(), entry.GetRangeEnd(), 1496 entry.data, entry.data + entry.GetByteSize()); 1497 } 1498 #endif 1499 } 1500 1501 lldb::addr_t 1502 SymbolFileDWARFDebugMap::LinkOSOFileAddress (SymbolFileDWARF *oso_symfile, lldb::addr_t oso_file_addr) 1503 { 1504 CompileUnitInfo *cu_info = GetCompileUnitInfo (oso_symfile); 1505 if (cu_info) 1506 { 1507 const FileRangeMap::Entry *oso_range_entry = cu_info->GetFileRangeMap(this).FindEntryThatContains(oso_file_addr); 1508 if (oso_range_entry) 1509 { 1510 const DebugMap::Entry *debug_map_entry = m_debug_map.FindEntryThatContains(oso_range_entry->data); 1511 if (debug_map_entry) 1512 { 1513 const lldb::addr_t offset = oso_file_addr - oso_range_entry->GetRangeBase(); 1514 const lldb::addr_t exe_file_addr = debug_map_entry->GetRangeBase() + offset; 1515 return exe_file_addr; 1516 } 1517 } 1518 } 1519 return LLDB_INVALID_ADDRESS; 1520 } 1521 1522 bool 1523 SymbolFileDWARFDebugMap::LinkOSOAddress (Address &addr) 1524 { 1525 // Make sure this address hasn't been fixed already 1526 Module *exe_module = GetObjectFile()->GetModule().get(); 1527 Module *addr_module = addr.GetModule().get(); 1528 if (addr_module == exe_module) 1529 return true; // Address is already in terms of the main executable module 1530 1531 CompileUnitInfo *cu_info = GetCompileUnitInfo (GetSymbolFileAsSymbolFileDWARF(addr_module->GetSymbolVendor()->GetSymbolFile())); 1532 if (cu_info) 1533 { 1534 const lldb::addr_t oso_file_addr = addr.GetFileAddress(); 1535 const FileRangeMap::Entry *oso_range_entry = cu_info->GetFileRangeMap(this).FindEntryThatContains(oso_file_addr); 1536 if (oso_range_entry) 1537 { 1538 const DebugMap::Entry *debug_map_entry = m_debug_map.FindEntryThatContains(oso_range_entry->data); 1539 if (debug_map_entry) 1540 { 1541 const lldb::addr_t offset = oso_file_addr - oso_range_entry->GetRangeBase(); 1542 const lldb::addr_t exe_file_addr = debug_map_entry->GetRangeBase() + offset; 1543 return exe_module->ResolveFileAddress(exe_file_addr, addr); 1544 } 1545 } 1546 } 1547 return true; 1548 } 1549 1550 LineTable * 1551 SymbolFileDWARFDebugMap::LinkOSOLineTable (SymbolFileDWARF *oso_dwarf, LineTable *line_table) 1552 { 1553 CompileUnitInfo *cu_info = GetCompileUnitInfo (oso_dwarf); 1554 if (cu_info) 1555 return line_table->LinkLineTable(cu_info->GetFileRangeMap(this)); 1556 return NULL; 1557 } 1558 1559 size_t 1560 SymbolFileDWARFDebugMap::AddOSOARanges (SymbolFileDWARF* dwarf2Data, DWARFDebugAranges* debug_aranges) 1561 { 1562 size_t num_line_entries_added = 0; 1563 if (debug_aranges && dwarf2Data) 1564 { 1565 CompileUnitInfo *compile_unit_info = GetCompileUnitInfo(dwarf2Data); 1566 if (compile_unit_info) 1567 { 1568 const FileRangeMap &file_range_map = compile_unit_info->GetFileRangeMap(this); 1569 for (size_t idx = 0; 1570 idx < file_range_map.GetSize(); 1571 idx++) 1572 { 1573 const FileRangeMap::Entry* entry = file_range_map.GetEntryAtIndex(idx); 1574 if (entry) 1575 { 1576 printf ("[0x%16.16" PRIx64 " - 0x%16.16" PRIx64 ")\n", entry->GetRangeBase(), entry->GetRangeEnd()); 1577 debug_aranges->AppendRange(dwarf2Data->GetID(), entry->GetRangeBase(), entry->GetRangeEnd()); 1578 num_line_entries_added++; 1579 } 1580 } 1581 } 1582 } 1583 return num_line_entries_added; 1584 } 1585 1586