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 this, 69 oso_module->GetSpecificationDescription().c_str()); 70 } 71 72 73 std::vector<SymbolFileDWARFDebugMap::CompileUnitInfo *> cu_infos; 74 if (exe_symfile->GetCompUnitInfosForModule(oso_module, cu_infos)) 75 { 76 for (auto comp_unit_info : cu_infos) 77 { 78 Symtab *exe_symtab = exe_symfile->GetObjectFile()->GetSymtab(); 79 ModuleSP oso_module_sp (oso_objfile->GetModule()); 80 Symtab *oso_symtab = oso_objfile->GetSymtab(); 81 82 ///const uint32_t fun_resolve_flags = SymbolContext::Module | eSymbolContextCompUnit | eSymbolContextFunction; 83 //SectionList *oso_sections = oso_objfile->Sections(); 84 // Now we need to make sections that map from zero based object 85 // file addresses to where things eneded up in the main executable. 86 87 assert (comp_unit_info->first_symbol_index != UINT32_MAX); 88 // End index is one past the last valid symbol index 89 const uint32_t oso_end_idx = comp_unit_info->last_symbol_index + 1; 90 for (uint32_t idx = comp_unit_info->first_symbol_index + 2; // Skip the N_SO and N_OSO 91 idx < oso_end_idx; 92 ++idx) 93 { 94 Symbol *exe_symbol = exe_symtab->SymbolAtIndex(idx); 95 if (exe_symbol) 96 { 97 if (exe_symbol->IsDebug() == false) 98 continue; 99 100 switch (exe_symbol->GetType()) 101 { 102 default: 103 break; 104 105 case eSymbolTypeCode: 106 { 107 // For each N_FUN, or function that we run into in the debug map 108 // we make a new section that we add to the sections found in the 109 // .o file. This new section has the file address set to what the 110 // addresses are in the .o file, and the load address is adjusted 111 // to match where it ended up in the final executable! We do this 112 // before we parse any dwarf info so that when it goes get parsed 113 // all section/offset addresses that get registered will resolve 114 // correctly to the new addresses in the main executable. 115 116 // First we find the original symbol in the .o file's symbol table 117 Symbol *oso_fun_symbol = oso_symtab->FindFirstSymbolWithNameAndType (exe_symbol->GetMangled().GetName(Mangled::ePreferMangled), 118 eSymbolTypeCode, 119 Symtab::eDebugNo, 120 Symtab::eVisibilityAny); 121 if (oso_fun_symbol) 122 { 123 // Add the inverse OSO file address to debug map entry mapping 124 exe_symfile->AddOSOFileRange (this, 125 exe_symbol->GetAddress().GetFileAddress(), 126 oso_fun_symbol->GetAddress().GetFileAddress(), 127 std::min<addr_t>(exe_symbol->GetByteSize(), oso_fun_symbol->GetByteSize())); 128 129 } 130 } 131 break; 132 133 case eSymbolTypeData: 134 { 135 // For each N_GSYM we remap the address for the global by making 136 // a new section that we add to the sections found in the .o file. 137 // This new section has the file address set to what the 138 // addresses are in the .o file, and the load address is adjusted 139 // to match where it ended up in the final executable! We do this 140 // before we parse any dwarf info so that when it goes get parsed 141 // all section/offset addresses that get registered will resolve 142 // correctly to the new addresses in the main executable. We 143 // initially set the section size to be 1 byte, but will need to 144 // fix up these addresses further after all globals have been 145 // parsed to span the gaps, or we can find the global variable 146 // sizes from the DWARF info as we are parsing. 147 148 // Next we find the non-stab entry that corresponds to the N_GSYM in the .o file 149 Symbol *oso_gsym_symbol = oso_symtab->FindFirstSymbolWithNameAndType (exe_symbol->GetMangled().GetName(Mangled::ePreferMangled), 150 eSymbolTypeData, 151 Symtab::eDebugNo, 152 Symtab::eVisibilityAny); 153 154 if (exe_symbol && oso_gsym_symbol && 155 exe_symbol->ValueIsAddress() && 156 oso_gsym_symbol->ValueIsAddress()) 157 { 158 // Add the inverse OSO file address to debug map entry mapping 159 exe_symfile->AddOSOFileRange (this, 160 exe_symbol->GetAddress().GetFileAddress(), 161 oso_gsym_symbol->GetAddress().GetFileAddress(), 162 std::min<addr_t>(exe_symbol->GetByteSize(), oso_gsym_symbol->GetByteSize())); 163 } 164 } 165 break; 166 } 167 } 168 } 169 170 exe_symfile->FinalizeOSOFileRanges (this); 171 // We don't need the symbols anymore for the .o files 172 oso_objfile->ClearSymtab(); 173 } 174 } 175 return file_range_map; 176 } 177 178 179 class DebugMapModule : public Module 180 { 181 public: 182 DebugMapModule (const ModuleSP &exe_module_sp, 183 uint32_t cu_idx, 184 const FileSpec& file_spec, 185 const ArchSpec& arch, 186 const ConstString *object_name, 187 off_t object_offset, 188 const TimeValue *object_mod_time_ptr) : 189 Module (file_spec, arch, object_name, object_offset, object_mod_time_ptr), 190 m_exe_module_wp (exe_module_sp), 191 m_cu_idx (cu_idx) 192 { 193 } 194 195 virtual 196 ~DebugMapModule () 197 { 198 } 199 200 201 virtual SymbolVendor* 202 GetSymbolVendor(bool can_create = true, lldb_private::Stream *feedback_strm = NULL) 203 { 204 // Scope for locker 205 if (m_symfile_ap.get() || can_create == false) 206 return m_symfile_ap.get(); 207 208 ModuleSP exe_module_sp (m_exe_module_wp.lock()); 209 if (exe_module_sp) 210 { 211 // Now get the object file outside of a locking scope 212 ObjectFile *oso_objfile = GetObjectFile (); 213 if (oso_objfile) 214 { 215 Mutex::Locker locker (m_mutex); 216 SymbolVendor* symbol_vendor = Module::GetSymbolVendor(can_create, feedback_strm); 217 if (symbol_vendor) 218 { 219 // Set a a pointer to this class to set our OSO DWARF file know 220 // that the DWARF is being used along with a debug map and that 221 // it will have the remapped sections that we do below. 222 SymbolFileDWARF *oso_symfile = SymbolFileDWARFDebugMap::GetSymbolFileAsSymbolFileDWARF(symbol_vendor->GetSymbolFile()); 223 224 if (!oso_symfile) 225 return NULL; 226 227 ObjectFile *exe_objfile = exe_module_sp->GetObjectFile(); 228 SymbolVendor *exe_sym_vendor = exe_module_sp->GetSymbolVendor(); 229 230 if (exe_objfile && exe_sym_vendor) 231 { 232 if (oso_symfile->GetNumCompileUnits() == 1) 233 { 234 oso_symfile->SetDebugMapModule(exe_module_sp); 235 // Set the ID of the symbol file DWARF to the index of the OSO 236 // shifted left by 32 bits to provide a unique prefix for any 237 // UserID's that get created in the symbol file. 238 oso_symfile->SetID (((uint64_t)m_cu_idx + 1ull) << 32ull); 239 } 240 else 241 { 242 oso_symfile->SetID (UINT64_MAX); 243 } 244 } 245 return symbol_vendor; 246 } 247 } 248 } 249 return NULL; 250 } 251 252 protected: 253 ModuleWP m_exe_module_wp; 254 const uint32_t m_cu_idx; 255 }; 256 257 void 258 SymbolFileDWARFDebugMap::Initialize() 259 { 260 PluginManager::RegisterPlugin (GetPluginNameStatic(), 261 GetPluginDescriptionStatic(), 262 CreateInstance); 263 } 264 265 void 266 SymbolFileDWARFDebugMap::Terminate() 267 { 268 PluginManager::UnregisterPlugin (CreateInstance); 269 } 270 271 272 lldb_private::ConstString 273 SymbolFileDWARFDebugMap::GetPluginNameStatic() 274 { 275 static ConstString g_name("dwarf-debugmap"); 276 return g_name; 277 } 278 279 const char * 280 SymbolFileDWARFDebugMap::GetPluginDescriptionStatic() 281 { 282 return "DWARF and DWARF3 debug symbol file reader (debug map)."; 283 } 284 285 SymbolFile* 286 SymbolFileDWARFDebugMap::CreateInstance (ObjectFile* obj_file) 287 { 288 return new SymbolFileDWARFDebugMap (obj_file); 289 } 290 291 292 SymbolFileDWARFDebugMap::SymbolFileDWARFDebugMap (ObjectFile* ofile) : 293 SymbolFile(ofile), 294 m_flags(), 295 m_compile_unit_infos(), 296 m_func_indexes(), 297 m_glob_indexes(), 298 m_supports_DW_AT_APPLE_objc_complete_type (eLazyBoolCalculate) 299 { 300 } 301 302 303 SymbolFileDWARFDebugMap::~SymbolFileDWARFDebugMap() 304 { 305 } 306 307 void 308 SymbolFileDWARFDebugMap::InitializeObject() 309 { 310 // Install our external AST source callbacks so we can complete Clang types. 311 llvm::IntrusiveRefCntPtr<clang::ExternalASTSource> ast_source_ap ( 312 new ClangExternalASTSourceCallbacks (SymbolFileDWARFDebugMap::CompleteTagDecl, 313 SymbolFileDWARFDebugMap::CompleteObjCInterfaceDecl, 314 NULL, 315 SymbolFileDWARFDebugMap::LayoutRecordType, 316 this)); 317 318 GetClangASTContext().SetExternalSource (ast_source_ap); 319 } 320 321 void 322 SymbolFileDWARFDebugMap::InitOSO() 323 { 324 if (m_flags.test(kHaveInitializedOSOs)) 325 return; 326 327 m_flags.set(kHaveInitializedOSOs); 328 329 // If the object file has been stripped, there is no sense in looking further 330 // as all of the debug symbols for the debug map will not be available 331 if (m_obj_file->IsStripped()) 332 return; 333 334 // Also make sure the file type is some sort of executable. Core files, debug 335 // info files (dSYM), object files (.o files), and stub libraries all can 336 switch (m_obj_file->GetType()) 337 { 338 case ObjectFile::eTypeInvalid: 339 case ObjectFile::eTypeCoreFile: 340 case ObjectFile::eTypeDebugInfo: 341 case ObjectFile::eTypeObjectFile: 342 case ObjectFile::eTypeStubLibrary: 343 case ObjectFile::eTypeUnknown: 344 case ObjectFile::eTypeJIT: 345 return; 346 347 case ObjectFile::eTypeExecutable: 348 case ObjectFile::eTypeDynamicLinker: 349 case ObjectFile::eTypeSharedLibrary: 350 break; 351 } 352 353 // In order to get the abilities of this plug-in, we look at the list of 354 // N_OSO entries (object files) from the symbol table and make sure that 355 // these files exist and also contain valid DWARF. If we get any of that 356 // then we return the abilities of the first N_OSO's DWARF. 357 358 Symtab* symtab = m_obj_file->GetSymtab(); 359 if (symtab) 360 { 361 Log *log (LogChannelDWARF::GetLogIfAll(DWARF_LOG_DEBUG_MAP)); 362 363 std::vector<uint32_t> oso_indexes; 364 // When a mach-o symbol is encoded, the n_type field is encoded in bits 365 // 23:16, and the n_desc field is encoded in bits 15:0. 366 // 367 // To find all N_OSO entries that are part of the DWARF + debug map 368 // we find only object file symbols with the flags value as follows: 369 // bits 23:16 == 0x66 (N_OSO) 370 // bits 15: 0 == 0x0001 (specifies this is a debug map object file) 371 const uint32_t k_oso_symbol_flags_value = 0x660001u; 372 373 const uint32_t oso_index_count = symtab->AppendSymbolIndexesWithTypeAndFlagsValue(eSymbolTypeObjectFile, k_oso_symbol_flags_value, oso_indexes); 374 375 if (oso_index_count > 0) 376 { 377 symtab->AppendSymbolIndexesWithType (eSymbolTypeCode, Symtab::eDebugYes, Symtab::eVisibilityAny, m_func_indexes); 378 symtab->AppendSymbolIndexesWithType (eSymbolTypeData, Symtab::eDebugYes, Symtab::eVisibilityAny, m_glob_indexes); 379 380 symtab->SortSymbolIndexesByValue(m_func_indexes, true); 381 symtab->SortSymbolIndexesByValue(m_glob_indexes, true); 382 383 for (uint32_t sym_idx : m_func_indexes) 384 { 385 const Symbol *symbol = symtab->SymbolAtIndex(sym_idx); 386 lldb::addr_t file_addr = symbol->GetAddress().GetFileAddress(); 387 lldb::addr_t byte_size = symbol->GetByteSize(); 388 DebugMap::Entry debug_map_entry(file_addr, byte_size, OSOEntry(sym_idx, LLDB_INVALID_ADDRESS)); 389 m_debug_map.Append(debug_map_entry); 390 } 391 for (uint32_t sym_idx : m_glob_indexes) 392 { 393 const Symbol *symbol = symtab->SymbolAtIndex(sym_idx); 394 lldb::addr_t file_addr = symbol->GetAddress().GetFileAddress(); 395 lldb::addr_t byte_size = symbol->GetByteSize(); 396 DebugMap::Entry debug_map_entry(file_addr, byte_size, OSOEntry(sym_idx, LLDB_INVALID_ADDRESS)); 397 m_debug_map.Append(debug_map_entry); 398 } 399 m_debug_map.Sort(); 400 401 m_compile_unit_infos.resize(oso_index_count); 402 403 for (uint32_t i=0; i<oso_index_count; ++i) 404 { 405 const uint32_t so_idx = oso_indexes[i] - 1; 406 const uint32_t oso_idx = oso_indexes[i]; 407 const Symbol *so_symbol = symtab->SymbolAtIndex(so_idx); 408 const Symbol *oso_symbol = symtab->SymbolAtIndex(oso_idx); 409 if (so_symbol && 410 oso_symbol && 411 so_symbol->GetType() == eSymbolTypeSourceFile && 412 oso_symbol->GetType() == eSymbolTypeObjectFile) 413 { 414 m_compile_unit_infos[i].so_file.SetFile(so_symbol->GetName().AsCString(), false); 415 m_compile_unit_infos[i].oso_path = oso_symbol->GetName(); 416 TimeValue oso_mod_time; 417 oso_mod_time.OffsetWithSeconds(oso_symbol->GetAddress().GetOffset()); 418 m_compile_unit_infos[i].oso_mod_time = oso_mod_time; 419 uint32_t sibling_idx = so_symbol->GetSiblingIndex(); 420 // The sibling index can't be less that or equal to the current index "i" 421 if (sibling_idx <= i) 422 { 423 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()); 424 } 425 else 426 { 427 const Symbol* last_symbol = symtab->SymbolAtIndex (sibling_idx - 1); 428 m_compile_unit_infos[i].first_symbol_index = so_idx; 429 m_compile_unit_infos[i].last_symbol_index = sibling_idx - 1; 430 m_compile_unit_infos[i].first_symbol_id = so_symbol->GetID(); 431 m_compile_unit_infos[i].last_symbol_id = last_symbol->GetID(); 432 433 if (log) 434 log->Printf("Initialized OSO 0x%8.8x: file=%s", i, oso_symbol->GetName().GetCString()); 435 } 436 } 437 else 438 { 439 if (oso_symbol == NULL) 440 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); 441 else if (so_symbol == NULL) 442 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); 443 else if (so_symbol->GetType() != eSymbolTypeSourceFile) 444 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); 445 else if (oso_symbol->GetType() != eSymbolTypeSourceFile) 446 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); 447 } 448 } 449 } 450 } 451 } 452 453 Module * 454 SymbolFileDWARFDebugMap::GetModuleByOSOIndex (uint32_t oso_idx) 455 { 456 const uint32_t cu_count = GetNumCompileUnits(); 457 if (oso_idx < cu_count) 458 return GetModuleByCompUnitInfo (&m_compile_unit_infos[oso_idx]); 459 return NULL; 460 } 461 462 Module * 463 SymbolFileDWARFDebugMap::GetModuleByCompUnitInfo (CompileUnitInfo *comp_unit_info) 464 { 465 if (!comp_unit_info->oso_sp) 466 { 467 auto pos = m_oso_map.find (comp_unit_info->oso_path); 468 if (pos != m_oso_map.end()) 469 { 470 comp_unit_info->oso_sp = pos->second; 471 } 472 else 473 { 474 ObjectFile *obj_file = GetObjectFile(); 475 comp_unit_info->oso_sp.reset (new OSOInfo()); 476 m_oso_map[comp_unit_info->oso_path] = comp_unit_info->oso_sp; 477 const char *oso_path = comp_unit_info->oso_path.GetCString(); 478 FileSpec oso_file (oso_path, false); 479 ConstString oso_object; 480 if (oso_file.Exists()) 481 { 482 TimeValue oso_mod_time (oso_file.GetModificationTime()); 483 if (oso_mod_time != comp_unit_info->oso_mod_time) 484 { 485 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", 486 oso_file.GetPath().c_str(), 487 oso_mod_time.GetAsSecondsSinceJan1_1970(), 488 comp_unit_info->oso_mod_time.GetAsSecondsSinceJan1_1970()); 489 return NULL; 490 } 491 492 } 493 else 494 { 495 const bool must_exist = true; 496 497 if (!ObjectFile::SplitArchivePathWithObject (oso_path, 498 oso_file, 499 oso_object, 500 must_exist)) 501 { 502 return NULL; 503 } 504 } 505 // Always create a new module for .o files. Why? Because we 506 // use the debug map, to add new sections to each .o file and 507 // even though a .o file might not have changed, the sections 508 // that get added to the .o file can change. 509 comp_unit_info->oso_sp->module_sp.reset (new DebugMapModule (obj_file->GetModule(), 510 GetCompUnitInfoIndex(comp_unit_info), 511 oso_file, 512 m_obj_file->GetModule()->GetArchitecture(), 513 oso_object ? &oso_object : NULL, 514 0, 515 oso_object ? &comp_unit_info->oso_mod_time : NULL)); 516 } 517 } 518 if (comp_unit_info->oso_sp) 519 return comp_unit_info->oso_sp->module_sp.get(); 520 return NULL; 521 } 522 523 524 bool 525 SymbolFileDWARFDebugMap::GetFileSpecForSO (uint32_t oso_idx, FileSpec &file_spec) 526 { 527 if (oso_idx < m_compile_unit_infos.size()) 528 { 529 if (m_compile_unit_infos[oso_idx].so_file) 530 { 531 file_spec = m_compile_unit_infos[oso_idx].so_file; 532 return true; 533 } 534 } 535 return false; 536 } 537 538 539 540 ObjectFile * 541 SymbolFileDWARFDebugMap::GetObjectFileByOSOIndex (uint32_t oso_idx) 542 { 543 Module *oso_module = GetModuleByOSOIndex (oso_idx); 544 if (oso_module) 545 return oso_module->GetObjectFile(); 546 return NULL; 547 } 548 549 SymbolFileDWARF * 550 SymbolFileDWARFDebugMap::GetSymbolFile (const SymbolContext& sc) 551 { 552 CompileUnitInfo *comp_unit_info = GetCompUnitInfo (sc); 553 if (comp_unit_info) 554 return GetSymbolFileByCompUnitInfo (comp_unit_info); 555 return NULL; 556 } 557 558 ObjectFile * 559 SymbolFileDWARFDebugMap::GetObjectFileByCompUnitInfo (CompileUnitInfo *comp_unit_info) 560 { 561 Module *oso_module = GetModuleByCompUnitInfo (comp_unit_info); 562 if (oso_module) 563 return oso_module->GetObjectFile(); 564 return NULL; 565 } 566 567 568 uint32_t 569 SymbolFileDWARFDebugMap::GetCompUnitInfoIndex (const CompileUnitInfo *comp_unit_info) 570 { 571 if (!m_compile_unit_infos.empty()) 572 { 573 const CompileUnitInfo *first_comp_unit_info = &m_compile_unit_infos.front(); 574 const CompileUnitInfo *last_comp_unit_info = &m_compile_unit_infos.back(); 575 if (first_comp_unit_info <= comp_unit_info && comp_unit_info <= last_comp_unit_info) 576 return comp_unit_info - first_comp_unit_info; 577 } 578 return UINT32_MAX; 579 } 580 581 SymbolFileDWARF * 582 SymbolFileDWARFDebugMap::GetSymbolFileByOSOIndex (uint32_t oso_idx) 583 { 584 if (oso_idx < m_compile_unit_infos.size()) 585 return GetSymbolFileByCompUnitInfo (&m_compile_unit_infos[oso_idx]); 586 return NULL; 587 } 588 589 SymbolFileDWARF * 590 SymbolFileDWARFDebugMap::GetSymbolFileAsSymbolFileDWARF (SymbolFile *sym_file) 591 { 592 if (sym_file && sym_file->GetPluginName() == SymbolFileDWARF::GetPluginNameStatic()) 593 return (SymbolFileDWARF *)sym_file; 594 return NULL; 595 } 596 597 SymbolFileDWARF * 598 SymbolFileDWARFDebugMap::GetSymbolFileByCompUnitInfo (CompileUnitInfo *comp_unit_info) 599 { 600 Module *oso_module = GetModuleByCompUnitInfo (comp_unit_info); 601 if (oso_module) 602 { 603 SymbolVendor *sym_vendor = oso_module->GetSymbolVendor(); 604 if (sym_vendor) 605 return GetSymbolFileAsSymbolFileDWARF (sym_vendor->GetSymbolFile()); 606 } 607 return NULL; 608 } 609 610 uint32_t 611 SymbolFileDWARFDebugMap::CalculateAbilities () 612 { 613 // In order to get the abilities of this plug-in, we look at the list of 614 // N_OSO entries (object files) from the symbol table and make sure that 615 // these files exist and also contain valid DWARF. If we get any of that 616 // then we return the abilities of the first N_OSO's DWARF. 617 618 const uint32_t oso_index_count = GetNumCompileUnits(); 619 if (oso_index_count > 0) 620 { 621 InitOSO(); 622 if (!m_compile_unit_infos.empty()) 623 { 624 return SymbolFile::CompileUnits | 625 SymbolFile::Functions | 626 SymbolFile::Blocks | 627 SymbolFile::GlobalVariables | 628 SymbolFile::LocalVariables | 629 SymbolFile::VariableTypes | 630 SymbolFile::LineTables ; 631 } 632 } 633 return 0; 634 } 635 636 uint32_t 637 SymbolFileDWARFDebugMap::GetNumCompileUnits() 638 { 639 InitOSO (); 640 return m_compile_unit_infos.size(); 641 } 642 643 644 CompUnitSP 645 SymbolFileDWARFDebugMap::ParseCompileUnitAtIndex(uint32_t cu_idx) 646 { 647 CompUnitSP comp_unit_sp; 648 const uint32_t cu_count = GetNumCompileUnits(); 649 650 if (cu_idx < cu_count) 651 { 652 Module *oso_module = GetModuleByCompUnitInfo (&m_compile_unit_infos[cu_idx]); 653 if (oso_module) 654 { 655 FileSpec so_file_spec; 656 if (GetFileSpecForSO (cu_idx, so_file_spec)) 657 { 658 // User zero as the ID to match the compile unit at offset 659 // zero in each .o file since each .o file can only have 660 // one compile unit for now. 661 lldb::user_id_t cu_id = 0; 662 m_compile_unit_infos[cu_idx].compile_unit_sp.reset(new CompileUnit (m_obj_file->GetModule(), 663 NULL, 664 so_file_spec, 665 cu_id, 666 eLanguageTypeUnknown)); 667 668 if (m_compile_unit_infos[cu_idx].compile_unit_sp) 669 { 670 // Let our symbol vendor know about this compile unit 671 m_obj_file->GetModule()->GetSymbolVendor()->SetCompileUnitAtIndex (cu_idx, m_compile_unit_infos[cu_idx].compile_unit_sp); 672 } 673 } 674 } 675 comp_unit_sp = m_compile_unit_infos[cu_idx].compile_unit_sp; 676 } 677 678 return comp_unit_sp; 679 } 680 681 SymbolFileDWARFDebugMap::CompileUnitInfo * 682 SymbolFileDWARFDebugMap::GetCompUnitInfo (const SymbolContext& sc) 683 { 684 const uint32_t cu_count = GetNumCompileUnits(); 685 for (uint32_t i=0; i<cu_count; ++i) 686 { 687 if (sc.comp_unit == m_compile_unit_infos[i].compile_unit_sp.get()) 688 return &m_compile_unit_infos[i]; 689 } 690 return NULL; 691 } 692 693 694 size_t 695 SymbolFileDWARFDebugMap::GetCompUnitInfosForModule (const lldb_private::Module *module, std::vector<CompileUnitInfo *>& cu_infos) 696 { 697 const uint32_t cu_count = GetNumCompileUnits(); 698 for (uint32_t i=0; i<cu_count; ++i) 699 { 700 if (module == GetModuleByCompUnitInfo (&m_compile_unit_infos[i])) 701 cu_infos.push_back (&m_compile_unit_infos[i]); 702 } 703 return cu_infos.size(); 704 } 705 706 lldb::LanguageType 707 SymbolFileDWARFDebugMap::ParseCompileUnitLanguage (const SymbolContext& sc) 708 { 709 SymbolFileDWARF *oso_dwarf = GetSymbolFile (sc); 710 if (oso_dwarf) 711 return oso_dwarf->ParseCompileUnitLanguage (sc); 712 return eLanguageTypeUnknown; 713 } 714 715 size_t 716 SymbolFileDWARFDebugMap::ParseCompileUnitFunctions (const SymbolContext& sc) 717 { 718 SymbolFileDWARF *oso_dwarf = GetSymbolFile (sc); 719 if (oso_dwarf) 720 return oso_dwarf->ParseCompileUnitFunctions (sc); 721 return 0; 722 } 723 724 bool 725 SymbolFileDWARFDebugMap::ParseCompileUnitLineTable (const SymbolContext& sc) 726 { 727 SymbolFileDWARF *oso_dwarf = GetSymbolFile (sc); 728 if (oso_dwarf) 729 return oso_dwarf->ParseCompileUnitLineTable (sc); 730 return false; 731 } 732 733 bool 734 SymbolFileDWARFDebugMap::ParseCompileUnitSupportFiles (const SymbolContext& sc, FileSpecList &support_files) 735 { 736 SymbolFileDWARF *oso_dwarf = GetSymbolFile (sc); 737 if (oso_dwarf) 738 return oso_dwarf->ParseCompileUnitSupportFiles (sc, support_files); 739 return false; 740 } 741 742 743 size_t 744 SymbolFileDWARFDebugMap::ParseFunctionBlocks (const SymbolContext& sc) 745 { 746 SymbolFileDWARF *oso_dwarf = GetSymbolFile (sc); 747 if (oso_dwarf) 748 return oso_dwarf->ParseFunctionBlocks (sc); 749 return 0; 750 } 751 752 753 size_t 754 SymbolFileDWARFDebugMap::ParseTypes (const SymbolContext& sc) 755 { 756 SymbolFileDWARF *oso_dwarf = GetSymbolFile (sc); 757 if (oso_dwarf) 758 return oso_dwarf->ParseTypes (sc); 759 return 0; 760 } 761 762 763 size_t 764 SymbolFileDWARFDebugMap::ParseVariablesForContext (const SymbolContext& sc) 765 { 766 SymbolFileDWARF *oso_dwarf = GetSymbolFile (sc); 767 if (oso_dwarf) 768 return oso_dwarf->ParseVariablesForContext (sc); 769 return 0; 770 } 771 772 773 774 Type* 775 SymbolFileDWARFDebugMap::ResolveTypeUID(lldb::user_id_t type_uid) 776 { 777 const uint64_t oso_idx = GetOSOIndexFromUserID (type_uid); 778 SymbolFileDWARF *oso_dwarf = GetSymbolFileByOSOIndex (oso_idx); 779 if (oso_dwarf) 780 return oso_dwarf->ResolveTypeUID (type_uid); 781 return NULL; 782 } 783 784 bool 785 SymbolFileDWARFDebugMap::ResolveClangOpaqueTypeDefinition (ClangASTType& clang_type) 786 { 787 // We have a struct/union/class/enum that needs to be fully resolved. 788 return false; 789 } 790 791 uint32_t 792 SymbolFileDWARFDebugMap::ResolveSymbolContext (const Address& exe_so_addr, uint32_t resolve_scope, SymbolContext& sc) 793 { 794 uint32_t resolved_flags = 0; 795 Symtab* symtab = m_obj_file->GetSymtab(); 796 if (symtab) 797 { 798 const addr_t exe_file_addr = exe_so_addr.GetFileAddress(); 799 800 const DebugMap::Entry *debug_map_entry = m_debug_map.FindEntryThatContains (exe_file_addr); 801 if (debug_map_entry) 802 { 803 804 sc.symbol = symtab->SymbolAtIndex(debug_map_entry->data.GetExeSymbolIndex()); 805 806 if (sc.symbol != NULL) 807 { 808 resolved_flags |= eSymbolContextSymbol; 809 810 uint32_t oso_idx = 0; 811 CompileUnitInfo* comp_unit_info = GetCompileUnitInfoForSymbolWithID (sc.symbol->GetID(), &oso_idx); 812 if (comp_unit_info) 813 { 814 comp_unit_info->GetFileRangeMap(this); 815 Module *oso_module = GetModuleByCompUnitInfo (comp_unit_info); 816 if (oso_module) 817 { 818 lldb::addr_t oso_file_addr = exe_file_addr - debug_map_entry->GetRangeBase() + debug_map_entry->data.GetOSOFileAddress(); 819 Address oso_so_addr; 820 if (oso_module->ResolveFileAddress(oso_file_addr, oso_so_addr)) 821 { 822 resolved_flags |= oso_module->GetSymbolVendor()->ResolveSymbolContext (oso_so_addr, resolve_scope, sc); 823 } 824 } 825 } 826 } 827 } 828 } 829 return resolved_flags; 830 } 831 832 833 uint32_t 834 SymbolFileDWARFDebugMap::ResolveSymbolContext (const FileSpec& file_spec, uint32_t line, bool check_inlines, uint32_t resolve_scope, SymbolContextList& sc_list) 835 { 836 const uint32_t initial = sc_list.GetSize(); 837 const uint32_t cu_count = GetNumCompileUnits(); 838 839 for (uint32_t i=0; i<cu_count; ++i) 840 { 841 // If we are checking for inlines, then we need to look through all 842 // compile units no matter if "file_spec" matches. 843 bool resolve = check_inlines; 844 845 if (!resolve) 846 { 847 FileSpec so_file_spec; 848 if (GetFileSpecForSO (i, so_file_spec)) 849 { 850 // Match the full path if the incoming file_spec has a directory (not just a basename) 851 const bool full_match = (bool)file_spec.GetDirectory(); 852 resolve = FileSpec::Equal (file_spec, so_file_spec, full_match); 853 } 854 } 855 if (resolve) 856 { 857 SymbolFileDWARF *oso_dwarf = GetSymbolFileByOSOIndex (i); 858 if (oso_dwarf) 859 oso_dwarf->ResolveSymbolContext(file_spec, line, check_inlines, resolve_scope, sc_list); 860 } 861 } 862 return sc_list.GetSize() - initial; 863 } 864 865 uint32_t 866 SymbolFileDWARFDebugMap::PrivateFindGlobalVariables 867 ( 868 const ConstString &name, 869 const ClangNamespaceDecl *namespace_decl, 870 const std::vector<uint32_t> &indexes, // Indexes into the symbol table that match "name" 871 uint32_t max_matches, 872 VariableList& variables 873 ) 874 { 875 const uint32_t original_size = variables.GetSize(); 876 const size_t match_count = indexes.size(); 877 for (size_t i=0; i<match_count; ++i) 878 { 879 uint32_t oso_idx; 880 CompileUnitInfo* comp_unit_info = GetCompileUnitInfoForSymbolWithIndex (indexes[i], &oso_idx); 881 if (comp_unit_info) 882 { 883 SymbolFileDWARF *oso_dwarf = GetSymbolFileByOSOIndex (oso_idx); 884 if (oso_dwarf) 885 { 886 if (oso_dwarf->FindGlobalVariables(name, namespace_decl, true, max_matches, variables)) 887 if (variables.GetSize() > max_matches) 888 break; 889 } 890 } 891 } 892 return variables.GetSize() - original_size; 893 } 894 895 uint32_t 896 SymbolFileDWARFDebugMap::FindGlobalVariables (const ConstString &name, const ClangNamespaceDecl *namespace_decl, bool append, uint32_t max_matches, VariableList& variables) 897 { 898 899 // If we aren't appending the results to this list, then clear the list 900 if (!append) 901 variables.Clear(); 902 903 // Remember how many variables are in the list before we search in case 904 // we are appending the results to a variable list. 905 const uint32_t original_size = variables.GetSize(); 906 907 uint32_t total_matches = 0; 908 SymbolFileDWARF *oso_dwarf; 909 for (uint32_t oso_idx = 0; ((oso_dwarf = GetSymbolFileByOSOIndex (oso_idx)) != NULL); ++oso_idx) 910 { 911 const uint32_t oso_matches = oso_dwarf->FindGlobalVariables (name, 912 namespace_decl, 913 true, 914 max_matches, 915 variables); 916 if (oso_matches > 0) 917 { 918 total_matches += oso_matches; 919 920 // Are we getting all matches? 921 if (max_matches == UINT32_MAX) 922 continue; // Yep, continue getting everything 923 924 // If we have found enough matches, lets get out 925 if (max_matches >= total_matches) 926 break; 927 928 // Update the max matches for any subsequent calls to find globals 929 // in any other object files with DWARF 930 max_matches -= oso_matches; 931 } 932 } 933 // Return the number of variable that were appended to the list 934 return variables.GetSize() - original_size; 935 } 936 937 938 uint32_t 939 SymbolFileDWARFDebugMap::FindGlobalVariables (const RegularExpression& regex, bool append, uint32_t max_matches, VariableList& variables) 940 { 941 // If we aren't appending the results to this list, then clear the list 942 if (!append) 943 variables.Clear(); 944 945 // Remember how many variables are in the list before we search in case 946 // we are appending the results to a variable list. 947 const uint32_t original_size = variables.GetSize(); 948 949 uint32_t total_matches = 0; 950 SymbolFileDWARF *oso_dwarf; 951 for (uint32_t oso_idx = 0; ((oso_dwarf = GetSymbolFileByOSOIndex (oso_idx)) != NULL); ++oso_idx) 952 { 953 const uint32_t oso_matches = oso_dwarf->FindGlobalVariables (regex, 954 true, 955 max_matches, 956 variables); 957 if (oso_matches > 0) 958 { 959 total_matches += oso_matches; 960 961 // Are we getting all matches? 962 if (max_matches == UINT32_MAX) 963 continue; // Yep, continue getting everything 964 965 // If we have found enough matches, lets get out 966 if (max_matches >= total_matches) 967 break; 968 969 // Update the max matches for any subsequent calls to find globals 970 // in any other object files with DWARF 971 max_matches -= oso_matches; 972 } 973 } 974 // Return the number of variable that were appended to the list 975 return variables.GetSize() - original_size; 976 } 977 978 979 int 980 SymbolFileDWARFDebugMap::SymbolContainsSymbolWithIndex (uint32_t *symbol_idx_ptr, const CompileUnitInfo *comp_unit_info) 981 { 982 const uint32_t symbol_idx = *symbol_idx_ptr; 983 984 if (symbol_idx < comp_unit_info->first_symbol_index) 985 return -1; 986 987 if (symbol_idx <= comp_unit_info->last_symbol_index) 988 return 0; 989 990 return 1; 991 } 992 993 994 int 995 SymbolFileDWARFDebugMap::SymbolContainsSymbolWithID (user_id_t *symbol_idx_ptr, const CompileUnitInfo *comp_unit_info) 996 { 997 const user_id_t symbol_id = *symbol_idx_ptr; 998 999 if (symbol_id < comp_unit_info->first_symbol_id) 1000 return -1; 1001 1002 if (symbol_id <= comp_unit_info->last_symbol_id) 1003 return 0; 1004 1005 return 1; 1006 } 1007 1008 1009 SymbolFileDWARFDebugMap::CompileUnitInfo* 1010 SymbolFileDWARFDebugMap::GetCompileUnitInfoForSymbolWithIndex (uint32_t symbol_idx, uint32_t *oso_idx_ptr) 1011 { 1012 const uint32_t oso_index_count = m_compile_unit_infos.size(); 1013 CompileUnitInfo *comp_unit_info = NULL; 1014 if (oso_index_count) 1015 { 1016 comp_unit_info = (CompileUnitInfo*)bsearch(&symbol_idx, 1017 &m_compile_unit_infos[0], 1018 m_compile_unit_infos.size(), 1019 sizeof(CompileUnitInfo), 1020 (ComparisonFunction)SymbolContainsSymbolWithIndex); 1021 } 1022 1023 if (oso_idx_ptr) 1024 { 1025 if (comp_unit_info != NULL) 1026 *oso_idx_ptr = comp_unit_info - &m_compile_unit_infos[0]; 1027 else 1028 *oso_idx_ptr = UINT32_MAX; 1029 } 1030 return comp_unit_info; 1031 } 1032 1033 SymbolFileDWARFDebugMap::CompileUnitInfo* 1034 SymbolFileDWARFDebugMap::GetCompileUnitInfoForSymbolWithID (user_id_t symbol_id, uint32_t *oso_idx_ptr) 1035 { 1036 const uint32_t oso_index_count = m_compile_unit_infos.size(); 1037 CompileUnitInfo *comp_unit_info = NULL; 1038 if (oso_index_count) 1039 { 1040 comp_unit_info = (CompileUnitInfo*)::bsearch (&symbol_id, 1041 &m_compile_unit_infos[0], 1042 m_compile_unit_infos.size(), 1043 sizeof(CompileUnitInfo), 1044 (ComparisonFunction)SymbolContainsSymbolWithID); 1045 } 1046 1047 if (oso_idx_ptr) 1048 { 1049 if (comp_unit_info != NULL) 1050 *oso_idx_ptr = comp_unit_info - &m_compile_unit_infos[0]; 1051 else 1052 *oso_idx_ptr = UINT32_MAX; 1053 } 1054 return comp_unit_info; 1055 } 1056 1057 1058 static void 1059 RemoveFunctionsWithModuleNotEqualTo (const ModuleSP &module_sp, SymbolContextList &sc_list, uint32_t start_idx) 1060 { 1061 // We found functions in .o files. Not all functions in the .o files 1062 // will have made it into the final output file. The ones that did 1063 // make it into the final output file will have a section whose module 1064 // matches the module from the ObjectFile for this SymbolFile. When 1065 // the modules don't match, then we have something that was in a 1066 // .o file, but doesn't map to anything in the final executable. 1067 uint32_t i=start_idx; 1068 while (i < sc_list.GetSize()) 1069 { 1070 SymbolContext sc; 1071 sc_list.GetContextAtIndex(i, sc); 1072 if (sc.function) 1073 { 1074 const SectionSP section_sp (sc.function->GetAddressRange().GetBaseAddress().GetSection()); 1075 if (section_sp->GetModule() != module_sp) 1076 { 1077 sc_list.RemoveContextAtIndex(i); 1078 continue; 1079 } 1080 } 1081 ++i; 1082 } 1083 } 1084 1085 uint32_t 1086 SymbolFileDWARFDebugMap::FindFunctions(const ConstString &name, const ClangNamespaceDecl *namespace_decl, uint32_t name_type_mask, bool include_inlines, bool append, SymbolContextList& sc_list) 1087 { 1088 Timer scoped_timer (__PRETTY_FUNCTION__, 1089 "SymbolFileDWARFDebugMap::FindFunctions (name = %s)", 1090 name.GetCString()); 1091 1092 uint32_t initial_size = 0; 1093 if (append) 1094 initial_size = sc_list.GetSize(); 1095 else 1096 sc_list.Clear(); 1097 1098 uint32_t oso_idx = 0; 1099 SymbolFileDWARF *oso_dwarf; 1100 while ((oso_dwarf = GetSymbolFileByOSOIndex (oso_idx++)) != NULL) 1101 { 1102 uint32_t sc_idx = sc_list.GetSize(); 1103 if (oso_dwarf->FindFunctions(name, namespace_decl, name_type_mask, include_inlines, true, sc_list)) 1104 { 1105 RemoveFunctionsWithModuleNotEqualTo (m_obj_file->GetModule(), sc_list, sc_idx); 1106 } 1107 } 1108 1109 return sc_list.GetSize() - initial_size; 1110 } 1111 1112 1113 uint32_t 1114 SymbolFileDWARFDebugMap::FindFunctions (const RegularExpression& regex, bool include_inlines, bool append, SymbolContextList& sc_list) 1115 { 1116 Timer scoped_timer (__PRETTY_FUNCTION__, 1117 "SymbolFileDWARFDebugMap::FindFunctions (regex = '%s')", 1118 regex.GetText()); 1119 1120 uint32_t initial_size = 0; 1121 if (append) 1122 initial_size = sc_list.GetSize(); 1123 else 1124 sc_list.Clear(); 1125 1126 uint32_t oso_idx = 0; 1127 SymbolFileDWARF *oso_dwarf; 1128 while ((oso_dwarf = GetSymbolFileByOSOIndex (oso_idx++)) != NULL) 1129 { 1130 uint32_t sc_idx = sc_list.GetSize(); 1131 1132 if (oso_dwarf->FindFunctions(regex, include_inlines, true, sc_list)) 1133 { 1134 RemoveFunctionsWithModuleNotEqualTo (m_obj_file->GetModule(), sc_list, sc_idx); 1135 } 1136 } 1137 1138 return sc_list.GetSize() - initial_size; 1139 } 1140 1141 size_t 1142 SymbolFileDWARFDebugMap::GetTypes (SymbolContextScope *sc_scope, 1143 uint32_t type_mask, 1144 TypeList &type_list) 1145 { 1146 Timer scoped_timer (__PRETTY_FUNCTION__, 1147 "SymbolFileDWARFDebugMap::GetTypes (type_mask = 0x%8.8x)", 1148 type_mask); 1149 1150 1151 uint32_t initial_size = type_list.GetSize(); 1152 SymbolFileDWARF *oso_dwarf = NULL; 1153 if (sc_scope) 1154 { 1155 SymbolContext sc; 1156 sc_scope->CalculateSymbolContext(&sc); 1157 1158 CompileUnitInfo *cu_info = GetCompUnitInfo (sc); 1159 if (cu_info) 1160 { 1161 oso_dwarf = GetSymbolFileByCompUnitInfo (cu_info); 1162 if (oso_dwarf) 1163 oso_dwarf->GetTypes (sc_scope, type_mask, type_list); 1164 } 1165 } 1166 else 1167 { 1168 uint32_t oso_idx = 0; 1169 while ((oso_dwarf = GetSymbolFileByOSOIndex (oso_idx++)) != NULL) 1170 { 1171 oso_dwarf->GetTypes (sc_scope, type_mask, type_list); 1172 } 1173 } 1174 return type_list.GetSize() - initial_size; 1175 } 1176 1177 1178 TypeSP 1179 SymbolFileDWARFDebugMap::FindDefinitionTypeForDWARFDeclContext (const DWARFDeclContext &die_decl_ctx) 1180 { 1181 TypeSP type_sp; 1182 SymbolFileDWARF *oso_dwarf; 1183 for (uint32_t oso_idx = 0; ((oso_dwarf = GetSymbolFileByOSOIndex (oso_idx)) != NULL); ++oso_idx) 1184 { 1185 type_sp = oso_dwarf->FindDefinitionTypeForDWARFDeclContext (die_decl_ctx); 1186 if (type_sp) 1187 break; 1188 } 1189 return type_sp; 1190 } 1191 1192 1193 1194 bool 1195 SymbolFileDWARFDebugMap::Supports_DW_AT_APPLE_objc_complete_type (SymbolFileDWARF *skip_dwarf_oso) 1196 { 1197 if (m_supports_DW_AT_APPLE_objc_complete_type == eLazyBoolCalculate) 1198 { 1199 m_supports_DW_AT_APPLE_objc_complete_type = eLazyBoolNo; 1200 SymbolFileDWARF *oso_dwarf; 1201 for (uint32_t oso_idx = 0; ((oso_dwarf = GetSymbolFileByOSOIndex (oso_idx)) != NULL); ++oso_idx) 1202 { 1203 if (skip_dwarf_oso != oso_dwarf && oso_dwarf->Supports_DW_AT_APPLE_objc_complete_type(NULL)) 1204 { 1205 m_supports_DW_AT_APPLE_objc_complete_type = eLazyBoolYes; 1206 break; 1207 } 1208 } 1209 } 1210 return m_supports_DW_AT_APPLE_objc_complete_type == eLazyBoolYes; 1211 } 1212 1213 TypeSP 1214 SymbolFileDWARFDebugMap::FindCompleteObjCDefinitionTypeForDIE (const DWARFDebugInfoEntry *die, 1215 const ConstString &type_name, 1216 bool must_be_implementation) 1217 { 1218 TypeSP type_sp; 1219 SymbolFileDWARF *oso_dwarf; 1220 for (uint32_t oso_idx = 0; ((oso_dwarf = GetSymbolFileByOSOIndex (oso_idx)) != NULL); ++oso_idx) 1221 { 1222 type_sp = oso_dwarf->FindCompleteObjCDefinitionTypeForDIE (die, type_name, must_be_implementation); 1223 if (type_sp) 1224 break; 1225 } 1226 return type_sp; 1227 } 1228 1229 uint32_t 1230 SymbolFileDWARFDebugMap::FindTypes 1231 ( 1232 const SymbolContext& sc, 1233 const ConstString &name, 1234 const ClangNamespaceDecl *namespace_decl, 1235 bool append, 1236 uint32_t max_matches, 1237 TypeList& types 1238 ) 1239 { 1240 if (!append) 1241 types.Clear(); 1242 1243 const uint32_t initial_types_size = types.GetSize(); 1244 SymbolFileDWARF *oso_dwarf; 1245 1246 if (sc.comp_unit) 1247 { 1248 oso_dwarf = GetSymbolFile (sc); 1249 if (oso_dwarf) 1250 return oso_dwarf->FindTypes (sc, name, namespace_decl, append, max_matches, types); 1251 } 1252 else 1253 { 1254 uint32_t oso_idx = 0; 1255 while ((oso_dwarf = GetSymbolFileByOSOIndex (oso_idx++)) != NULL) 1256 oso_dwarf->FindTypes (sc, name, namespace_decl, append, max_matches, types); 1257 } 1258 1259 return types.GetSize() - initial_types_size; 1260 } 1261 1262 // 1263 //uint32_t 1264 //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) 1265 //{ 1266 // SymbolFileDWARF *oso_dwarf = GetSymbolFile (sc); 1267 // if (oso_dwarf) 1268 // return oso_dwarf->FindTypes (sc, regex, append, max_matches, encoding, udt_uid, types); 1269 // return 0; 1270 //} 1271 1272 1273 ClangNamespaceDecl 1274 SymbolFileDWARFDebugMap::FindNamespace (const lldb_private::SymbolContext& sc, 1275 const lldb_private::ConstString &name, 1276 const ClangNamespaceDecl *parent_namespace_decl) 1277 { 1278 ClangNamespaceDecl matching_namespace; 1279 SymbolFileDWARF *oso_dwarf; 1280 1281 if (sc.comp_unit) 1282 { 1283 oso_dwarf = GetSymbolFile (sc); 1284 if (oso_dwarf) 1285 matching_namespace = oso_dwarf->FindNamespace (sc, name, parent_namespace_decl); 1286 } 1287 else 1288 { 1289 for (uint32_t oso_idx = 0; 1290 ((oso_dwarf = GetSymbolFileByOSOIndex (oso_idx)) != NULL); 1291 ++oso_idx) 1292 { 1293 matching_namespace = oso_dwarf->FindNamespace (sc, name, parent_namespace_decl); 1294 1295 if (matching_namespace) 1296 break; 1297 } 1298 } 1299 1300 return matching_namespace; 1301 } 1302 1303 //------------------------------------------------------------------ 1304 // PluginInterface protocol 1305 //------------------------------------------------------------------ 1306 lldb_private::ConstString 1307 SymbolFileDWARFDebugMap::GetPluginName() 1308 { 1309 return GetPluginNameStatic(); 1310 } 1311 1312 uint32_t 1313 SymbolFileDWARFDebugMap::GetPluginVersion() 1314 { 1315 return 1; 1316 } 1317 1318 lldb::CompUnitSP 1319 SymbolFileDWARFDebugMap::GetCompileUnit (SymbolFileDWARF *oso_dwarf) 1320 { 1321 if (oso_dwarf) 1322 { 1323 const uint32_t cu_count = GetNumCompileUnits(); 1324 for (uint32_t cu_idx=0; cu_idx<cu_count; ++cu_idx) 1325 { 1326 SymbolFileDWARF *oso_symfile = GetSymbolFileByCompUnitInfo (&m_compile_unit_infos[cu_idx]); 1327 if (oso_symfile == oso_dwarf) 1328 { 1329 if (!m_compile_unit_infos[cu_idx].compile_unit_sp) 1330 m_compile_unit_infos[cu_idx].compile_unit_sp = ParseCompileUnitAtIndex (cu_idx); 1331 1332 return m_compile_unit_infos[cu_idx].compile_unit_sp; 1333 } 1334 } 1335 } 1336 assert(!"this shouldn't happen"); 1337 return lldb::CompUnitSP(); 1338 } 1339 1340 SymbolFileDWARFDebugMap::CompileUnitInfo * 1341 SymbolFileDWARFDebugMap::GetCompileUnitInfo (SymbolFileDWARF *oso_dwarf) 1342 { 1343 if (oso_dwarf) 1344 { 1345 const uint32_t cu_count = GetNumCompileUnits(); 1346 for (uint32_t cu_idx=0; cu_idx<cu_count; ++cu_idx) 1347 { 1348 SymbolFileDWARF *oso_symfile = GetSymbolFileByCompUnitInfo (&m_compile_unit_infos[cu_idx]); 1349 if (oso_symfile == oso_dwarf) 1350 { 1351 return &m_compile_unit_infos[cu_idx]; 1352 } 1353 } 1354 } 1355 return NULL; 1356 } 1357 1358 1359 void 1360 SymbolFileDWARFDebugMap::SetCompileUnit (SymbolFileDWARF *oso_dwarf, const CompUnitSP &cu_sp) 1361 { 1362 if (oso_dwarf) 1363 { 1364 const uint32_t cu_count = GetNumCompileUnits(); 1365 for (uint32_t cu_idx=0; cu_idx<cu_count; ++cu_idx) 1366 { 1367 SymbolFileDWARF *oso_symfile = GetSymbolFileByCompUnitInfo (&m_compile_unit_infos[cu_idx]); 1368 if (oso_symfile == oso_dwarf) 1369 { 1370 if (m_compile_unit_infos[cu_idx].compile_unit_sp) 1371 { 1372 assert (m_compile_unit_infos[cu_idx].compile_unit_sp.get() == cu_sp.get()); 1373 } 1374 else 1375 { 1376 m_compile_unit_infos[cu_idx].compile_unit_sp = cu_sp; 1377 m_obj_file->GetModule()->GetSymbolVendor()->SetCompileUnitAtIndex(cu_idx, cu_sp); 1378 } 1379 } 1380 } 1381 } 1382 } 1383 1384 1385 void 1386 SymbolFileDWARFDebugMap::CompleteTagDecl (void *baton, clang::TagDecl *decl) 1387 { 1388 SymbolFileDWARFDebugMap *symbol_file_dwarf = (SymbolFileDWARFDebugMap *)baton; 1389 ClangASTType clang_type = symbol_file_dwarf->GetClangASTContext().GetTypeForDecl (decl); 1390 if (clang_type) 1391 { 1392 SymbolFileDWARF *oso_dwarf; 1393 1394 for (uint32_t oso_idx = 0; ((oso_dwarf = symbol_file_dwarf->GetSymbolFileByOSOIndex (oso_idx)) != NULL); ++oso_idx) 1395 { 1396 if (oso_dwarf->HasForwardDeclForClangType (clang_type)) 1397 { 1398 oso_dwarf->ResolveClangOpaqueTypeDefinition (clang_type); 1399 return; 1400 } 1401 } 1402 } 1403 } 1404 1405 void 1406 SymbolFileDWARFDebugMap::CompleteObjCInterfaceDecl (void *baton, clang::ObjCInterfaceDecl *decl) 1407 { 1408 SymbolFileDWARFDebugMap *symbol_file_dwarf = (SymbolFileDWARFDebugMap *)baton; 1409 ClangASTType clang_type = symbol_file_dwarf->GetClangASTContext().GetTypeForDecl (decl); 1410 if (clang_type) 1411 { 1412 SymbolFileDWARF *oso_dwarf; 1413 1414 for (uint32_t oso_idx = 0; ((oso_dwarf = symbol_file_dwarf->GetSymbolFileByOSOIndex (oso_idx)) != NULL); ++oso_idx) 1415 { 1416 if (oso_dwarf->HasForwardDeclForClangType (clang_type)) 1417 { 1418 oso_dwarf->ResolveClangOpaqueTypeDefinition (clang_type); 1419 return; 1420 } 1421 } 1422 } 1423 } 1424 1425 bool 1426 SymbolFileDWARFDebugMap::LayoutRecordType (void *baton, 1427 const clang::RecordDecl *record_decl, 1428 uint64_t &size, 1429 uint64_t &alignment, 1430 llvm::DenseMap <const clang::FieldDecl *, uint64_t> &field_offsets, 1431 llvm::DenseMap <const clang::CXXRecordDecl *, clang::CharUnits> &base_offsets, 1432 llvm::DenseMap <const clang::CXXRecordDecl *, clang::CharUnits> &vbase_offsets) 1433 { 1434 SymbolFileDWARFDebugMap *symbol_file_dwarf = (SymbolFileDWARFDebugMap *)baton; 1435 SymbolFileDWARF *oso_dwarf; 1436 for (uint32_t oso_idx = 0; ((oso_dwarf = symbol_file_dwarf->GetSymbolFileByOSOIndex (oso_idx)) != NULL); ++oso_idx) 1437 { 1438 if (oso_dwarf->LayoutRecordType (record_decl, size, alignment, field_offsets, base_offsets, vbase_offsets)) 1439 return true; 1440 } 1441 return false; 1442 } 1443 1444 1445 1446 clang::DeclContext* 1447 SymbolFileDWARFDebugMap::GetClangDeclContextContainingTypeUID (lldb::user_id_t type_uid) 1448 { 1449 const uint64_t oso_idx = GetOSOIndexFromUserID (type_uid); 1450 SymbolFileDWARF *oso_dwarf = GetSymbolFileByOSOIndex (oso_idx); 1451 if (oso_dwarf) 1452 return oso_dwarf->GetClangDeclContextContainingTypeUID (type_uid); 1453 return NULL; 1454 } 1455 1456 clang::DeclContext* 1457 SymbolFileDWARFDebugMap::GetClangDeclContextForTypeUID (const lldb_private::SymbolContext &sc, lldb::user_id_t type_uid) 1458 { 1459 const uint64_t oso_idx = GetOSOIndexFromUserID (type_uid); 1460 SymbolFileDWARF *oso_dwarf = GetSymbolFileByOSOIndex (oso_idx); 1461 if (oso_dwarf) 1462 return oso_dwarf->GetClangDeclContextForTypeUID (sc, type_uid); 1463 return NULL; 1464 } 1465 1466 bool 1467 SymbolFileDWARFDebugMap::AddOSOFileRange (CompileUnitInfo *cu_info, 1468 lldb::addr_t exe_file_addr, 1469 lldb::addr_t oso_file_addr, 1470 lldb::addr_t oso_byte_size) 1471 { 1472 const uint32_t debug_map_idx = m_debug_map.FindEntryIndexThatContains(exe_file_addr); 1473 if (debug_map_idx != UINT32_MAX) 1474 { 1475 DebugMap::Entry *debug_map_entry = m_debug_map.FindEntryThatContains(exe_file_addr); 1476 debug_map_entry->data.SetOSOFileAddress(oso_file_addr); 1477 cu_info->file_range_map.Append(FileRangeMap::Entry(oso_file_addr, oso_byte_size, exe_file_addr)); 1478 return true; 1479 } 1480 return false; 1481 } 1482 1483 void 1484 SymbolFileDWARFDebugMap::FinalizeOSOFileRanges (CompileUnitInfo *cu_info) 1485 { 1486 cu_info->file_range_map.Sort(); 1487 #if defined(DEBUG_OSO_DMAP) 1488 const FileRangeMap &oso_file_range_map = cu_info->GetFileRangeMap(this); 1489 const size_t n = oso_file_range_map.GetSize(); 1490 printf ("SymbolFileDWARFDebugMap::FinalizeOSOFileRanges (cu_info = %p) %s\n", 1491 cu_info, 1492 cu_info->oso_sp->module_sp->GetFileSpec().GetPath().c_str()); 1493 for (size_t i=0; i<n; ++i) 1494 { 1495 const FileRangeMap::Entry &entry = oso_file_range_map.GetEntryRef(i); 1496 printf ("oso [0x%16.16" PRIx64 " - 0x%16.16" PRIx64 ") ==> exe [0x%16.16" PRIx64 " - 0x%16.16" PRIx64 ")\n", 1497 entry.GetRangeBase(), entry.GetRangeEnd(), 1498 entry.data, entry.data + entry.GetByteSize()); 1499 } 1500 #endif 1501 } 1502 1503 lldb::addr_t 1504 SymbolFileDWARFDebugMap::LinkOSOFileAddress (SymbolFileDWARF *oso_symfile, lldb::addr_t oso_file_addr) 1505 { 1506 CompileUnitInfo *cu_info = GetCompileUnitInfo (oso_symfile); 1507 if (cu_info) 1508 { 1509 const FileRangeMap::Entry *oso_range_entry = cu_info->GetFileRangeMap(this).FindEntryThatContains(oso_file_addr); 1510 if (oso_range_entry) 1511 { 1512 const DebugMap::Entry *debug_map_entry = m_debug_map.FindEntryThatContains(oso_range_entry->data); 1513 if (debug_map_entry) 1514 { 1515 const lldb::addr_t offset = oso_file_addr - oso_range_entry->GetRangeBase(); 1516 const lldb::addr_t exe_file_addr = debug_map_entry->GetRangeBase() + offset; 1517 return exe_file_addr; 1518 } 1519 } 1520 } 1521 return LLDB_INVALID_ADDRESS; 1522 } 1523 1524 bool 1525 SymbolFileDWARFDebugMap::LinkOSOAddress (Address &addr) 1526 { 1527 // Make sure this address hasn't been fixed already 1528 Module *exe_module = GetObjectFile()->GetModule().get(); 1529 Module *addr_module = addr.GetModule().get(); 1530 if (addr_module == exe_module) 1531 return true; // Address is already in terms of the main executable module 1532 1533 CompileUnitInfo *cu_info = GetCompileUnitInfo (GetSymbolFileAsSymbolFileDWARF(addr_module->GetSymbolVendor()->GetSymbolFile())); 1534 if (cu_info) 1535 { 1536 const lldb::addr_t oso_file_addr = addr.GetFileAddress(); 1537 const FileRangeMap::Entry *oso_range_entry = cu_info->GetFileRangeMap(this).FindEntryThatContains(oso_file_addr); 1538 if (oso_range_entry) 1539 { 1540 const DebugMap::Entry *debug_map_entry = m_debug_map.FindEntryThatContains(oso_range_entry->data); 1541 if (debug_map_entry) 1542 { 1543 const lldb::addr_t offset = oso_file_addr - oso_range_entry->GetRangeBase(); 1544 const lldb::addr_t exe_file_addr = debug_map_entry->GetRangeBase() + offset; 1545 return exe_module->ResolveFileAddress(exe_file_addr, addr); 1546 } 1547 } 1548 } 1549 return true; 1550 } 1551 1552 LineTable * 1553 SymbolFileDWARFDebugMap::LinkOSOLineTable (SymbolFileDWARF *oso_dwarf, LineTable *line_table) 1554 { 1555 CompileUnitInfo *cu_info = GetCompileUnitInfo (oso_dwarf); 1556 if (cu_info) 1557 return line_table->LinkLineTable(cu_info->GetFileRangeMap(this)); 1558 return NULL; 1559 } 1560 1561 size_t 1562 SymbolFileDWARFDebugMap::AddOSOARanges (SymbolFileDWARF* dwarf2Data, DWARFDebugAranges* debug_aranges) 1563 { 1564 size_t num_line_entries_added = 0; 1565 if (debug_aranges && dwarf2Data) 1566 { 1567 CompileUnitInfo *compile_unit_info = GetCompileUnitInfo(dwarf2Data); 1568 if (compile_unit_info) 1569 { 1570 const FileRangeMap &file_range_map = compile_unit_info->GetFileRangeMap(this); 1571 for (size_t idx = 0; 1572 idx < file_range_map.GetSize(); 1573 idx++) 1574 { 1575 const FileRangeMap::Entry* entry = file_range_map.GetEntryAtIndex(idx); 1576 if (entry) 1577 { 1578 printf ("[0x%16.16" PRIx64 " - 0x%16.16" PRIx64 ")\n", entry->GetRangeBase(), entry->GetRangeEnd()); 1579 debug_aranges->AppendRange(dwarf2Data->GetID(), entry->GetRangeBase(), entry->GetRangeEnd()); 1580 num_line_entries_added++; 1581 } 1582 } 1583 } 1584 } 1585 return num_line_entries_added; 1586 } 1587 1588