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 "lldb/Core/Module.h" 13 #include "lldb/Core/ModuleList.h" 14 #include "lldb/Core/PluginManager.h" 15 #include "lldb/Core/RegularExpression.h" 16 #include "lldb/Core/StreamFile.h" 17 #include "lldb/Core/Timer.h" 18 19 #include "lldb/Symbol/ClangExternalASTSourceCallbacks.h" 20 #include "lldb/Symbol/ObjectFile.h" 21 #include "lldb/Symbol/SymbolVendor.h" 22 #include "lldb/Symbol/VariableList.h" 23 24 #include "SymbolFileDWARF.h" 25 26 using namespace lldb; 27 using namespace lldb_private; 28 29 void 30 SymbolFileDWARFDebugMap::Initialize() 31 { 32 PluginManager::RegisterPlugin (GetPluginNameStatic(), 33 GetPluginDescriptionStatic(), 34 CreateInstance); 35 } 36 37 void 38 SymbolFileDWARFDebugMap::Terminate() 39 { 40 PluginManager::UnregisterPlugin (CreateInstance); 41 } 42 43 44 const char * 45 SymbolFileDWARFDebugMap::GetPluginNameStatic() 46 { 47 return "dwarf-debugmap"; 48 } 49 50 const char * 51 SymbolFileDWARFDebugMap::GetPluginDescriptionStatic() 52 { 53 return "DWARF and DWARF3 debug symbol file reader (debug map)."; 54 } 55 56 SymbolFile* 57 SymbolFileDWARFDebugMap::CreateInstance (ObjectFile* obj_file) 58 { 59 return new SymbolFileDWARFDebugMap (obj_file); 60 } 61 62 63 SymbolFileDWARFDebugMap::SymbolFileDWARFDebugMap (ObjectFile* ofile) : 64 SymbolFile(ofile), 65 m_flags(), 66 m_compile_unit_infos(), 67 m_func_indexes(), 68 m_glob_indexes(), 69 m_supports_DW_AT_APPLE_objc_complete_type (eLazyBoolCalculate) 70 { 71 } 72 73 74 SymbolFileDWARFDebugMap::~SymbolFileDWARFDebugMap() 75 { 76 } 77 78 void 79 SymbolFileDWARFDebugMap::InitializeObject() 80 { 81 // Install our external AST source callbacks so we can complete Clang types. 82 llvm::OwningPtr<clang::ExternalASTSource> ast_source_ap ( 83 new ClangExternalASTSourceCallbacks (SymbolFileDWARFDebugMap::CompleteTagDecl, 84 SymbolFileDWARFDebugMap::CompleteObjCInterfaceDecl, 85 NULL, 86 SymbolFileDWARFDebugMap::LayoutRecordType, 87 this)); 88 89 GetClangASTContext().SetExternalSource (ast_source_ap); 90 } 91 92 93 94 void 95 SymbolFileDWARFDebugMap::InitOSO () 96 { 97 if (m_flags.test(kHaveInitializedOSOs)) 98 return; 99 100 m_flags.set(kHaveInitializedOSOs); 101 // In order to get the abilities of this plug-in, we look at the list of 102 // N_OSO entries (object files) from the symbol table and make sure that 103 // these files exist and also contain valid DWARF. If we get any of that 104 // then we return the abilities of the first N_OSO's DWARF. 105 106 Symtab* symtab = m_obj_file->GetSymtab(); 107 if (symtab) 108 { 109 std::vector<uint32_t> oso_indexes; 110 // StreamFile s(stdout); 111 // symtab->Dump(&s, NULL, eSortOrderNone); 112 113 // When a mach-o symbol is encoded, the n_type field is encoded in bits 114 // 23:16, and the n_desc field is encoded in bits 15:0. 115 // 116 // To find all N_OSO entries that are part of the DWARF + debug map 117 // we find only object file symbols with the flags value as follows: 118 // bits 23:16 == 0x66 (N_OSO) 119 // bits 15: 0 == 0x0001 (specifies this is a debug map object file) 120 const uint32_t k_oso_symbol_flags_value = 0x660001u; 121 122 const uint32_t oso_index_count = symtab->AppendSymbolIndexesWithTypeAndFlagsValue(eSymbolTypeObjectFile, k_oso_symbol_flags_value, oso_indexes); 123 124 if (oso_index_count > 0) 125 { 126 symtab->AppendSymbolIndexesWithType (eSymbolTypeCode, Symtab::eDebugYes, Symtab::eVisibilityAny, m_func_indexes); 127 symtab->AppendSymbolIndexesWithType (eSymbolTypeData, Symtab::eDebugYes, Symtab::eVisibilityAny, m_glob_indexes); 128 129 symtab->SortSymbolIndexesByValue(m_func_indexes, true); 130 symtab->SortSymbolIndexesByValue(m_glob_indexes, true); 131 132 m_compile_unit_infos.resize(oso_index_count); 133 // s.Printf("%s N_OSO symbols:\n", __PRETTY_FUNCTION__); 134 // symtab->Dump(&s, oso_indexes); 135 136 for (uint32_t i=0; i<oso_index_count; ++i) 137 { 138 m_compile_unit_infos[i].so_symbol = symtab->SymbolAtIndex(oso_indexes[i] - 1); 139 if (m_compile_unit_infos[i].so_symbol->GetSiblingIndex() == 0) 140 m_compile_unit_infos[i].so_symbol = symtab->SymbolAtIndex(oso_indexes[i] - 2); 141 m_compile_unit_infos[i].oso_symbol = symtab->SymbolAtIndex(oso_indexes[i]); 142 uint32_t sibling_idx = m_compile_unit_infos[i].so_symbol->GetSiblingIndex(); 143 assert (sibling_idx != 0); 144 assert (sibling_idx > i + 1); 145 m_compile_unit_infos[i].last_symbol = symtab->SymbolAtIndex (sibling_idx - 1); 146 m_compile_unit_infos[i].first_symbol_index = symtab->GetIndexForSymbol(m_compile_unit_infos[i].so_symbol); 147 m_compile_unit_infos[i].last_symbol_index = symtab->GetIndexForSymbol(m_compile_unit_infos[i].last_symbol); 148 } 149 } 150 } 151 } 152 153 Module * 154 SymbolFileDWARFDebugMap::GetModuleByOSOIndex (uint32_t oso_idx) 155 { 156 const uint32_t cu_count = GetNumCompileUnits(); 157 if (oso_idx < cu_count) 158 return GetModuleByCompUnitInfo (&m_compile_unit_infos[oso_idx]); 159 return NULL; 160 } 161 162 Module * 163 SymbolFileDWARFDebugMap::GetModuleByCompUnitInfo (CompileUnitInfo *comp_unit_info) 164 { 165 if (comp_unit_info->oso_module_sp.get() == NULL && comp_unit_info->symbol_file_supported) 166 { 167 Symbol *oso_symbol = comp_unit_info->oso_symbol; 168 if (oso_symbol) 169 { 170 FileSpec oso_file_spec(oso_symbol->GetMangled().GetName().AsCString(), true); 171 // Always create a new module for .o files. Why? Because we 172 // use the debug map, to add new sections to each .o file and 173 // even though a .o file might not have changed, the sections 174 // that get added to the .o file can change. 175 comp_unit_info->oso_module_sp.reset (new Module (oso_file_spec, 176 m_obj_file->GetModule()->GetArchitecture(), 177 NULL, 178 0)); 179 } 180 } 181 return comp_unit_info->oso_module_sp.get(); 182 } 183 184 185 bool 186 SymbolFileDWARFDebugMap::GetFileSpecForSO (uint32_t oso_idx, FileSpec &file_spec) 187 { 188 if (oso_idx < m_compile_unit_infos.size()) 189 { 190 if (!m_compile_unit_infos[oso_idx].so_file) 191 { 192 193 if (m_compile_unit_infos[oso_idx].so_symbol == NULL) 194 return false; 195 196 std::string so_path (m_compile_unit_infos[oso_idx].so_symbol->GetMangled().GetName().AsCString()); 197 if (m_compile_unit_infos[oso_idx].so_symbol[1].GetType() == eSymbolTypeSourceFile) 198 so_path += m_compile_unit_infos[oso_idx].so_symbol[1].GetMangled().GetName().AsCString(); 199 m_compile_unit_infos[oso_idx].so_file.SetFile(so_path.c_str(), true); 200 } 201 file_spec = m_compile_unit_infos[oso_idx].so_file; 202 return true; 203 } 204 return false; 205 } 206 207 208 209 ObjectFile * 210 SymbolFileDWARFDebugMap::GetObjectFileByOSOIndex (uint32_t oso_idx) 211 { 212 Module *oso_module = GetModuleByOSOIndex (oso_idx); 213 if (oso_module) 214 return oso_module->GetObjectFile(); 215 return NULL; 216 } 217 218 SymbolFileDWARF * 219 SymbolFileDWARFDebugMap::GetSymbolFile (const SymbolContext& sc) 220 { 221 CompileUnitInfo *comp_unit_info = GetCompUnitInfo (sc); 222 if (comp_unit_info) 223 return GetSymbolFileByCompUnitInfo (comp_unit_info); 224 return NULL; 225 } 226 227 ObjectFile * 228 SymbolFileDWARFDebugMap::GetObjectFileByCompUnitInfo (CompileUnitInfo *comp_unit_info) 229 { 230 Module *oso_module = GetModuleByCompUnitInfo (comp_unit_info); 231 if (oso_module) 232 return oso_module->GetObjectFile(); 233 return NULL; 234 } 235 236 237 uint32_t 238 SymbolFileDWARFDebugMap::GetCompUnitInfoIndex (const CompileUnitInfo *comp_unit_info) 239 { 240 if (!m_compile_unit_infos.empty()) 241 { 242 const CompileUnitInfo *first_comp_unit_info = &m_compile_unit_infos.front(); 243 const CompileUnitInfo *last_comp_unit_info = &m_compile_unit_infos.back(); 244 if (first_comp_unit_info <= comp_unit_info && comp_unit_info <= last_comp_unit_info) 245 return comp_unit_info - first_comp_unit_info; 246 } 247 return UINT32_MAX; 248 } 249 250 SymbolFileDWARF * 251 SymbolFileDWARFDebugMap::GetSymbolFileByOSOIndex (uint32_t oso_idx) 252 { 253 if (oso_idx < m_compile_unit_infos.size()) 254 return GetSymbolFileByCompUnitInfo (&m_compile_unit_infos[oso_idx]); 255 return NULL; 256 } 257 258 SymbolFileDWARF * 259 SymbolFileDWARFDebugMap::GetSymbolFileByCompUnitInfo (CompileUnitInfo *comp_unit_info) 260 { 261 if (comp_unit_info->oso_symbol_vendor == NULL && comp_unit_info->symbol_file_supported) 262 { 263 ObjectFile *oso_objfile = GetObjectFileByCompUnitInfo (comp_unit_info); 264 265 if (oso_objfile) 266 { 267 comp_unit_info->oso_symbol_vendor = oso_objfile->GetModule()->GetSymbolVendor(); 268 // SymbolFileDWARF *oso_dwarf = new SymbolFileDWARF(oso_objfile); 269 // comp_unit_info->oso_dwarf_sp.reset (oso_dwarf); 270 if (comp_unit_info->oso_symbol_vendor) 271 { 272 // Set a a pointer to this class to set our OSO DWARF file know 273 // that the DWARF is being used along with a debug map and that 274 // it will have the remapped sections that we do below. 275 SymbolFileDWARF *oso_symfile = (SymbolFileDWARF *)comp_unit_info->oso_symbol_vendor->GetSymbolFile(); 276 277 if (oso_symfile->GetNumCompileUnits() != 1) 278 { 279 oso_symfile->GetObjectFile()->GetModule()->ReportError ("DWARF for object file '%s' contains multiple translation units!", 280 oso_symfile->GetObjectFile()->GetFileSpec().GetFilename().AsCString()); 281 comp_unit_info->symbol_file_supported = false; 282 comp_unit_info->oso_module_sp.reset(); 283 comp_unit_info->oso_compile_unit_sp.reset(); 284 comp_unit_info->oso_symbol_vendor = NULL; 285 return NULL; 286 } 287 288 oso_symfile->SetDebugMapSymfile(this); 289 // Set the ID of the symbol file DWARF to the index of the OSO 290 // shifted left by 32 bits to provide a unique prefix for any 291 // UserID's that get created in the symbol file. 292 oso_symfile->SetID (((uint64_t)GetCompUnitInfoIndex(comp_unit_info) + 1ull) << 32ull); 293 comp_unit_info->debug_map_sections_sp.reset(new SectionList); 294 295 Symtab *exe_symtab = m_obj_file->GetSymtab(); 296 ModuleSP oso_module_sp (oso_objfile->GetModule()); 297 Symtab *oso_symtab = oso_objfile->GetSymtab(); 298 //#define DEBUG_OSO_DMAP // Do not check in with this defined... 299 #if defined(DEBUG_OSO_DMAP) 300 StreamFile s(stdout); 301 s << "OSO symtab:\n"; 302 oso_symtab->Dump(&s, NULL); 303 s << "OSO sections before:\n"; 304 oso_objfile->GetSectionList()->Dump(&s, NULL, true); 305 #endif 306 307 ///const uint32_t fun_resolve_flags = SymbolContext::Module | eSymbolContextCompUnit | eSymbolContextFunction; 308 //SectionList *oso_sections = oso_objfile->Sections(); 309 // Now we need to make sections that map from zero based object 310 // file addresses to where things eneded up in the main executable. 311 uint32_t oso_start_idx = exe_symtab->GetIndexForSymbol (comp_unit_info->oso_symbol); 312 assert (oso_start_idx != UINT32_MAX); 313 oso_start_idx += 1; 314 const uint32_t oso_end_idx = comp_unit_info->so_symbol->GetSiblingIndex(); 315 uint32_t sect_id = 0x10000; 316 for (uint32_t idx = oso_start_idx; idx < oso_end_idx; ++idx) 317 { 318 Symbol *exe_symbol = exe_symtab->SymbolAtIndex(idx); 319 if (exe_symbol) 320 { 321 if (exe_symbol->IsDebug() == false) 322 continue; 323 324 switch (exe_symbol->GetType()) 325 { 326 default: 327 break; 328 329 case eSymbolTypeCode: 330 { 331 // For each N_FUN, or function that we run into in the debug map 332 // we make a new section that we add to the sections found in the 333 // .o file. This new section has the file address set to what the 334 // addresses are in the .o file, and the load address is adjusted 335 // to match where it ended up in the final executable! We do this 336 // before we parse any dwarf info so that when it goes get parsed 337 // all section/offset addresses that get registered will resolve 338 // correctly to the new addresses in the main executable. 339 340 // First we find the original symbol in the .o file's symbol table 341 Symbol *oso_fun_symbol = oso_symtab->FindFirstSymbolWithNameAndType(exe_symbol->GetMangled().GetName(Mangled::ePreferMangled), eSymbolTypeCode, Symtab::eDebugNo, Symtab::eVisibilityAny); 342 if (oso_fun_symbol) 343 { 344 // If we found the symbol, then we 345 SectionSP exe_fun_section (exe_symbol->GetAddress().GetSection()); 346 SectionSP oso_fun_section (oso_fun_symbol->GetAddress().GetSection()); 347 if (oso_fun_section) 348 { 349 // Now we create a section that we will add as a child of the 350 // section in which the .o symbol (the N_FUN) exists. 351 352 // We use the exe_symbol size because the one in the .o file 353 // will just be a symbol with no size, and the exe_symbol 354 // size will reflect any size changes (ppc has been known to 355 // shrink function sizes when it gets rid of jump islands that 356 // aren't needed anymore). 357 SectionSP oso_fun_section_sp (new Section (oso_fun_symbol->GetAddress().GetSection(), 358 oso_module_sp, // Module (the .o file) 359 sect_id++, // Section ID starts at 0x10000 and increments so the section IDs don't overlap with the standard mach IDs 360 exe_symbol->GetMangled().GetName(Mangled::ePreferMangled), // Name the section the same as the symbol for which is was generated! 361 eSectionTypeDebug, 362 oso_fun_symbol->GetAddress().GetOffset(), // File VM address offset in the current section 363 exe_symbol->GetByteSize(), // File size (we need the size from the executable) 364 0, 0, 0)); 365 366 oso_fun_section_sp->SetLinkedLocation (exe_fun_section, 367 exe_symbol->GetAddress().GetFileAddress() - exe_fun_section->GetFileAddress()); 368 oso_fun_section->GetChildren().AddSection(oso_fun_section_sp); 369 comp_unit_info->debug_map_sections_sp->AddSection(oso_fun_section_sp); 370 } 371 } 372 } 373 break; 374 375 case eSymbolTypeData: 376 { 377 // For each N_GSYM we remap the address for the global by making 378 // a new section that we add to the sections found in the .o file. 379 // This new section has the file address set to what the 380 // addresses are in the .o file, and the load address is adjusted 381 // to match where it ended up in the final executable! We do this 382 // before we parse any dwarf info so that when it goes get parsed 383 // all section/offset addresses that get registered will resolve 384 // correctly to the new addresses in the main executable. We 385 // initially set the section size to be 1 byte, but will need to 386 // fix up these addresses further after all globals have been 387 // parsed to span the gaps, or we can find the global variable 388 // sizes from the DWARF info as we are parsing. 389 390 // Next we find the non-stab entry that corresponds to the N_GSYM in the .o file 391 Symbol *oso_gsym_symbol = oso_symtab->FindFirstSymbolWithNameAndType (exe_symbol->GetMangled().GetName(), 392 eSymbolTypeData, 393 Symtab::eDebugNo, 394 Symtab::eVisibilityAny); 395 396 if (exe_symbol && oso_gsym_symbol && exe_symbol->ValueIsAddress() && oso_gsym_symbol->ValueIsAddress()) 397 { 398 // If we found the symbol, then we 399 SectionSP exe_gsym_section (exe_symbol->GetAddress().GetSection()); 400 SectionSP oso_gsym_section (oso_gsym_symbol->GetAddress().GetSection()); 401 if (oso_gsym_section) 402 { 403 SectionSP oso_gsym_section_sp (new Section (oso_gsym_symbol->GetAddress().GetSection(), 404 oso_module_sp, // Module (the .o file) 405 sect_id++, // Section ID starts at 0x10000 and increments so the section IDs don't overlap with the standard mach IDs 406 exe_symbol->GetMangled().GetName(Mangled::ePreferMangled), // Name the section the same as the symbol for which is was generated! 407 eSectionTypeDebug, 408 oso_gsym_symbol->GetAddress().GetOffset(), // File VM address offset in the current section 409 1, // We don't know the size of the global, just do the main address for now. 410 0, 0, 0)); 411 412 oso_gsym_section_sp->SetLinkedLocation (exe_gsym_section, 413 exe_symbol->GetAddress().GetFileAddress() - exe_gsym_section->GetFileAddress()); 414 oso_gsym_section->GetChildren().AddSection(oso_gsym_section_sp); 415 comp_unit_info->debug_map_sections_sp->AddSection(oso_gsym_section_sp); 416 } 417 } 418 } 419 break; 420 } 421 } 422 } 423 #if defined(DEBUG_OSO_DMAP) 424 s << "OSO sections after:\n"; 425 oso_objfile->GetSectionList()->Dump(&s, NULL, true); 426 #endif 427 } 428 } 429 } 430 if (comp_unit_info->oso_symbol_vendor) 431 return (SymbolFileDWARF *)comp_unit_info->oso_symbol_vendor->GetSymbolFile(); 432 return NULL; 433 } 434 435 uint32_t 436 SymbolFileDWARFDebugMap::CalculateAbilities () 437 { 438 // In order to get the abilities of this plug-in, we look at the list of 439 // N_OSO entries (object files) from the symbol table and make sure that 440 // these files exist and also contain valid DWARF. If we get any of that 441 // then we return the abilities of the first N_OSO's DWARF. 442 443 const uint32_t oso_index_count = GetNumCompileUnits(); 444 if (oso_index_count > 0) 445 { 446 const uint32_t dwarf_abilities = SymbolFile::CompileUnits | 447 SymbolFile::Functions | 448 SymbolFile::Blocks | 449 SymbolFile::GlobalVariables | 450 SymbolFile::LocalVariables | 451 SymbolFile::VariableTypes | 452 SymbolFile::LineTables; 453 454 for (uint32_t oso_idx=0; oso_idx<oso_index_count; ++oso_idx) 455 { 456 SymbolFileDWARF *oso_dwarf = GetSymbolFileByOSOIndex (oso_idx); 457 if (oso_dwarf) 458 { 459 uint32_t oso_abilities = oso_dwarf->GetAbilities(); 460 if ((oso_abilities & dwarf_abilities) == dwarf_abilities) 461 return oso_abilities; 462 } 463 } 464 } 465 return 0; 466 } 467 468 uint32_t 469 SymbolFileDWARFDebugMap::GetNumCompileUnits() 470 { 471 InitOSO (); 472 return m_compile_unit_infos.size(); 473 } 474 475 476 CompUnitSP 477 SymbolFileDWARFDebugMap::ParseCompileUnitAtIndex(uint32_t cu_idx) 478 { 479 CompUnitSP comp_unit_sp; 480 const uint32_t cu_count = GetNumCompileUnits(); 481 482 if (cu_idx < cu_count) 483 { 484 if (m_compile_unit_infos[cu_idx].oso_compile_unit_sp.get() == NULL && m_compile_unit_infos[cu_idx].symbol_file_supported) 485 { 486 SymbolFileDWARF *oso_dwarf = GetSymbolFileByOSOIndex (cu_idx); 487 if (oso_dwarf) 488 { 489 // There is only one compile unit for N_OSO entry right now, so 490 // it will always exist at index zero. 491 m_compile_unit_infos[cu_idx].oso_compile_unit_sp = m_compile_unit_infos[cu_idx].oso_symbol_vendor->GetCompileUnitAtIndex (0); 492 } 493 494 if (m_compile_unit_infos[cu_idx].oso_compile_unit_sp.get() == NULL) 495 { 496 // We weren't able to get the DWARF for this N_OSO entry (the 497 // .o file may be missing or not at the specified path), make 498 // one up as best we can from the debug map. We set the uid 499 // of the compile unit to the symbol index with the MSBit set 500 // so that it doesn't collide with any uid values from the DWARF 501 Symbol *so_symbol = m_compile_unit_infos[cu_idx].so_symbol; 502 if (so_symbol) 503 { 504 m_compile_unit_infos[cu_idx].oso_compile_unit_sp.reset(new CompileUnit (m_obj_file->GetModule(), 505 NULL, 506 so_symbol->GetMangled().GetName().AsCString(), 507 cu_idx, 508 eLanguageTypeUnknown)); 509 510 // Let our symbol vendor know about this compile unit 511 m_obj_file->GetModule()->GetSymbolVendor()->SetCompileUnitAtIndex (m_compile_unit_infos[cu_idx].oso_compile_unit_sp, 512 cu_idx); 513 } 514 } 515 } 516 comp_unit_sp = m_compile_unit_infos[cu_idx].oso_compile_unit_sp; 517 } 518 519 return comp_unit_sp; 520 } 521 522 SymbolFileDWARFDebugMap::CompileUnitInfo * 523 SymbolFileDWARFDebugMap::GetCompUnitInfo (const SymbolContext& sc) 524 { 525 const uint32_t cu_count = GetNumCompileUnits(); 526 for (uint32_t i=0; i<cu_count; ++i) 527 { 528 if (sc.comp_unit == m_compile_unit_infos[i].oso_compile_unit_sp.get()) 529 return &m_compile_unit_infos[i]; 530 } 531 return NULL; 532 } 533 534 size_t 535 SymbolFileDWARFDebugMap::ParseCompileUnitFunctions (const SymbolContext& sc) 536 { 537 SymbolFileDWARF *oso_dwarf = GetSymbolFile (sc); 538 if (oso_dwarf) 539 return oso_dwarf->ParseCompileUnitFunctions (sc); 540 return 0; 541 } 542 543 bool 544 SymbolFileDWARFDebugMap::ParseCompileUnitLineTable (const SymbolContext& sc) 545 { 546 SymbolFileDWARF *oso_dwarf = GetSymbolFile (sc); 547 if (oso_dwarf) 548 return oso_dwarf->ParseCompileUnitLineTable (sc); 549 return false; 550 } 551 552 bool 553 SymbolFileDWARFDebugMap::ParseCompileUnitSupportFiles (const SymbolContext& sc, FileSpecList &support_files) 554 { 555 SymbolFileDWARF *oso_dwarf = GetSymbolFile (sc); 556 if (oso_dwarf) 557 return oso_dwarf->ParseCompileUnitSupportFiles (sc, support_files); 558 return false; 559 } 560 561 562 size_t 563 SymbolFileDWARFDebugMap::ParseFunctionBlocks (const SymbolContext& sc) 564 { 565 SymbolFileDWARF *oso_dwarf = GetSymbolFile (sc); 566 if (oso_dwarf) 567 return oso_dwarf->ParseFunctionBlocks (sc); 568 return 0; 569 } 570 571 572 size_t 573 SymbolFileDWARFDebugMap::ParseTypes (const SymbolContext& sc) 574 { 575 SymbolFileDWARF *oso_dwarf = GetSymbolFile (sc); 576 if (oso_dwarf) 577 return oso_dwarf->ParseTypes (sc); 578 return 0; 579 } 580 581 582 size_t 583 SymbolFileDWARFDebugMap::ParseVariablesForContext (const SymbolContext& sc) 584 { 585 SymbolFileDWARF *oso_dwarf = GetSymbolFile (sc); 586 if (oso_dwarf) 587 return oso_dwarf->ParseTypes (sc); 588 return 0; 589 } 590 591 592 593 Type* 594 SymbolFileDWARFDebugMap::ResolveTypeUID(lldb::user_id_t type_uid) 595 { 596 const uint64_t oso_idx = GetOSOIndexFromUserID (type_uid); 597 SymbolFileDWARF *oso_dwarf = GetSymbolFileByOSOIndex (oso_idx); 598 if (oso_dwarf) 599 oso_dwarf->ResolveTypeUID (type_uid); 600 return NULL; 601 } 602 603 lldb::clang_type_t 604 SymbolFileDWARFDebugMap::ResolveClangOpaqueTypeDefinition (lldb::clang_type_t clang_type) 605 { 606 // We have a struct/union/class/enum that needs to be fully resolved. 607 return NULL; 608 } 609 610 uint32_t 611 SymbolFileDWARFDebugMap::ResolveSymbolContext (const Address& exe_so_addr, uint32_t resolve_scope, SymbolContext& sc) 612 { 613 uint32_t resolved_flags = 0; 614 Symtab* symtab = m_obj_file->GetSymtab(); 615 if (symtab) 616 { 617 const addr_t exe_file_addr = exe_so_addr.GetFileAddress(); 618 sc.symbol = symtab->FindSymbolContainingFileAddress (exe_file_addr, &m_func_indexes[0], m_func_indexes.size()); 619 620 if (sc.symbol != NULL) 621 { 622 resolved_flags |= eSymbolContextSymbol; 623 624 uint32_t oso_idx = 0; 625 CompileUnitInfo* comp_unit_info = GetCompileUnitInfoForSymbolWithID (sc.symbol->GetID(), &oso_idx); 626 if (comp_unit_info) 627 { 628 SymbolFileDWARF *oso_dwarf = GetSymbolFileByOSOIndex (oso_idx); 629 ObjectFile *oso_objfile = GetObjectFileByOSOIndex (oso_idx); 630 if (oso_dwarf && oso_objfile) 631 { 632 SectionList *oso_section_list = oso_objfile->GetSectionList(); 633 634 SectionSP oso_symbol_section_sp (oso_section_list->FindSectionContainingLinkedFileAddress (exe_file_addr, UINT32_MAX)); 635 636 if (oso_symbol_section_sp) 637 { 638 const addr_t linked_file_addr = oso_symbol_section_sp->GetLinkedFileAddress(); 639 Address oso_so_addr (oso_symbol_section_sp, exe_file_addr - linked_file_addr); 640 if (oso_so_addr.IsSectionOffset()) 641 resolved_flags |= oso_dwarf->ResolveSymbolContext (oso_so_addr, resolve_scope, sc); 642 } 643 } 644 } 645 } 646 } 647 return resolved_flags; 648 } 649 650 651 uint32_t 652 SymbolFileDWARFDebugMap::ResolveSymbolContext (const FileSpec& file_spec, uint32_t line, bool check_inlines, uint32_t resolve_scope, SymbolContextList& sc_list) 653 { 654 uint32_t initial = sc_list.GetSize(); 655 const uint32_t cu_count = GetNumCompileUnits(); 656 657 FileSpec so_file_spec; 658 for (uint32_t i=0; i<cu_count; ++i) 659 { 660 if (GetFileSpecForSO (i, so_file_spec)) 661 { 662 // By passing false to the comparison we will be able to match 663 // and files given a filename only. If both file_spec and 664 // so_file_spec have directories, we will still do a full match. 665 if (FileSpec::Compare (file_spec, so_file_spec, false) == 0) 666 { 667 SymbolFileDWARF *oso_dwarf = GetSymbolFileByOSOIndex (i); 668 if (oso_dwarf) 669 oso_dwarf->ResolveSymbolContext(file_spec, line, check_inlines, resolve_scope, sc_list); 670 } 671 } 672 } 673 return sc_list.GetSize() - initial; 674 } 675 676 uint32_t 677 SymbolFileDWARFDebugMap::PrivateFindGlobalVariables 678 ( 679 const ConstString &name, 680 const ClangNamespaceDecl *namespace_decl, 681 const std::vector<uint32_t> &indexes, // Indexes into the symbol table that match "name" 682 uint32_t max_matches, 683 VariableList& variables 684 ) 685 { 686 const uint32_t original_size = variables.GetSize(); 687 const size_t match_count = indexes.size(); 688 for (size_t i=0; i<match_count; ++i) 689 { 690 uint32_t oso_idx; 691 CompileUnitInfo* comp_unit_info = GetCompileUnitInfoForSymbolWithIndex (indexes[i], &oso_idx); 692 if (comp_unit_info) 693 { 694 SymbolFileDWARF *oso_dwarf = GetSymbolFileByOSOIndex (oso_idx); 695 if (oso_dwarf) 696 { 697 if (oso_dwarf->FindGlobalVariables(name, namespace_decl, true, max_matches, variables)) 698 if (variables.GetSize() > max_matches) 699 break; 700 } 701 } 702 } 703 return variables.GetSize() - original_size; 704 } 705 706 uint32_t 707 SymbolFileDWARFDebugMap::FindGlobalVariables (const ConstString &name, const ClangNamespaceDecl *namespace_decl, bool append, uint32_t max_matches, VariableList& variables) 708 { 709 710 // If we aren't appending the results to this list, then clear the list 711 if (!append) 712 variables.Clear(); 713 714 // Remember how many variables are in the list before we search in case 715 // we are appending the results to a variable list. 716 const uint32_t original_size = variables.GetSize(); 717 718 uint32_t total_matches = 0; 719 SymbolFileDWARF *oso_dwarf; 720 for (uint32_t oso_idx = 0; ((oso_dwarf = GetSymbolFileByOSOIndex (oso_idx)) != NULL); ++oso_idx) 721 { 722 const uint32_t oso_matches = oso_dwarf->FindGlobalVariables (name, 723 namespace_decl, 724 true, 725 max_matches, 726 variables); 727 if (oso_matches > 0) 728 { 729 total_matches += oso_matches; 730 731 // Are we getting all matches? 732 if (max_matches == UINT32_MAX) 733 continue; // Yep, continue getting everything 734 735 // If we have found enough matches, lets get out 736 if (max_matches >= total_matches) 737 break; 738 739 // Update the max matches for any subsequent calls to find globals 740 // in any other object files with DWARF 741 max_matches -= oso_matches; 742 } 743 } 744 // Return the number of variable that were appended to the list 745 return variables.GetSize() - original_size; 746 } 747 748 749 uint32_t 750 SymbolFileDWARFDebugMap::FindGlobalVariables (const RegularExpression& regex, bool append, uint32_t max_matches, VariableList& variables) 751 { 752 // If we aren't appending the results to this list, then clear the list 753 if (!append) 754 variables.Clear(); 755 756 // Remember how many variables are in the list before we search in case 757 // we are appending the results to a variable list. 758 const uint32_t original_size = variables.GetSize(); 759 760 uint32_t total_matches = 0; 761 SymbolFileDWARF *oso_dwarf; 762 for (uint32_t oso_idx = 0; ((oso_dwarf = GetSymbolFileByOSOIndex (oso_idx)) != NULL); ++oso_idx) 763 { 764 const uint32_t oso_matches = oso_dwarf->FindGlobalVariables (regex, 765 true, 766 max_matches, 767 variables); 768 if (oso_matches > 0) 769 { 770 total_matches += oso_matches; 771 772 // Are we getting all matches? 773 if (max_matches == UINT32_MAX) 774 continue; // Yep, continue getting everything 775 776 // If we have found enough matches, lets get out 777 if (max_matches >= total_matches) 778 break; 779 780 // Update the max matches for any subsequent calls to find globals 781 // in any other object files with DWARF 782 max_matches -= oso_matches; 783 } 784 } 785 // Return the number of variable that were appended to the list 786 return variables.GetSize() - original_size; 787 } 788 789 790 int 791 SymbolFileDWARFDebugMap::SymbolContainsSymbolWithIndex (uint32_t *symbol_idx_ptr, const CompileUnitInfo *comp_unit_info) 792 { 793 const uint32_t symbol_idx = *symbol_idx_ptr; 794 795 if (symbol_idx < comp_unit_info->first_symbol_index) 796 return -1; 797 798 if (symbol_idx <= comp_unit_info->last_symbol_index) 799 return 0; 800 801 return 1; 802 } 803 804 805 int 806 SymbolFileDWARFDebugMap::SymbolContainsSymbolWithID (user_id_t *symbol_idx_ptr, const CompileUnitInfo *comp_unit_info) 807 { 808 const user_id_t symbol_id = *symbol_idx_ptr; 809 810 if (symbol_id < comp_unit_info->so_symbol->GetID()) 811 return -1; 812 813 if (symbol_id <= comp_unit_info->last_symbol->GetID()) 814 return 0; 815 816 return 1; 817 } 818 819 820 SymbolFileDWARFDebugMap::CompileUnitInfo* 821 SymbolFileDWARFDebugMap::GetCompileUnitInfoForSymbolWithIndex (uint32_t symbol_idx, uint32_t *oso_idx_ptr) 822 { 823 const uint32_t oso_index_count = m_compile_unit_infos.size(); 824 CompileUnitInfo *comp_unit_info = NULL; 825 if (oso_index_count) 826 { 827 comp_unit_info = (CompileUnitInfo*)bsearch(&symbol_idx, 828 &m_compile_unit_infos[0], 829 m_compile_unit_infos.size(), 830 sizeof(CompileUnitInfo), 831 (ComparisonFunction)SymbolContainsSymbolWithIndex); 832 } 833 834 if (oso_idx_ptr) 835 { 836 if (comp_unit_info != NULL) 837 *oso_idx_ptr = comp_unit_info - &m_compile_unit_infos[0]; 838 else 839 *oso_idx_ptr = UINT32_MAX; 840 } 841 return comp_unit_info; 842 } 843 844 SymbolFileDWARFDebugMap::CompileUnitInfo* 845 SymbolFileDWARFDebugMap::GetCompileUnitInfoForSymbolWithID (user_id_t symbol_id, uint32_t *oso_idx_ptr) 846 { 847 const uint32_t oso_index_count = m_compile_unit_infos.size(); 848 CompileUnitInfo *comp_unit_info = NULL; 849 if (oso_index_count) 850 { 851 comp_unit_info = (CompileUnitInfo*)::bsearch (&symbol_id, 852 &m_compile_unit_infos[0], 853 m_compile_unit_infos.size(), 854 sizeof(CompileUnitInfo), 855 (ComparisonFunction)SymbolContainsSymbolWithID); 856 } 857 858 if (oso_idx_ptr) 859 { 860 if (comp_unit_info != NULL) 861 *oso_idx_ptr = comp_unit_info - &m_compile_unit_infos[0]; 862 else 863 *oso_idx_ptr = UINT32_MAX; 864 } 865 return comp_unit_info; 866 } 867 868 869 static void 870 RemoveFunctionsWithModuleNotEqualTo (const ModuleSP &module_sp, SymbolContextList &sc_list, uint32_t start_idx) 871 { 872 // We found functions in .o files. Not all functions in the .o files 873 // will have made it into the final output file. The ones that did 874 // make it into the final output file will have a section whose module 875 // matches the module from the ObjectFile for this SymbolFile. When 876 // the modules don't match, then we have something that was in a 877 // .o file, but doesn't map to anything in the final executable. 878 uint32_t i=start_idx; 879 while (i < sc_list.GetSize()) 880 { 881 SymbolContext sc; 882 sc_list.GetContextAtIndex(i, sc); 883 if (sc.function) 884 { 885 const SectionSP section_sp (sc.function->GetAddressRange().GetBaseAddress().GetSection()); 886 if (section_sp->GetModule() != module_sp) 887 { 888 sc_list.RemoveContextAtIndex(i); 889 continue; 890 } 891 } 892 ++i; 893 } 894 } 895 896 uint32_t 897 SymbolFileDWARFDebugMap::FindFunctions(const ConstString &name, const ClangNamespaceDecl *namespace_decl, uint32_t name_type_mask, bool include_inlines, bool append, SymbolContextList& sc_list) 898 { 899 Timer scoped_timer (__PRETTY_FUNCTION__, 900 "SymbolFileDWARFDebugMap::FindFunctions (name = %s)", 901 name.GetCString()); 902 903 uint32_t initial_size = 0; 904 if (append) 905 initial_size = sc_list.GetSize(); 906 else 907 sc_list.Clear(); 908 909 uint32_t oso_idx = 0; 910 SymbolFileDWARF *oso_dwarf; 911 while ((oso_dwarf = GetSymbolFileByOSOIndex (oso_idx++)) != NULL) 912 { 913 uint32_t sc_idx = sc_list.GetSize(); 914 if (oso_dwarf->FindFunctions(name, namespace_decl, name_type_mask, include_inlines, true, sc_list)) 915 { 916 RemoveFunctionsWithModuleNotEqualTo (m_obj_file->GetModule(), sc_list, sc_idx); 917 } 918 } 919 920 return sc_list.GetSize() - initial_size; 921 } 922 923 924 uint32_t 925 SymbolFileDWARFDebugMap::FindFunctions (const RegularExpression& regex, bool include_inlines, bool append, SymbolContextList& sc_list) 926 { 927 Timer scoped_timer (__PRETTY_FUNCTION__, 928 "SymbolFileDWARFDebugMap::FindFunctions (regex = '%s')", 929 regex.GetText()); 930 931 uint32_t initial_size = 0; 932 if (append) 933 initial_size = sc_list.GetSize(); 934 else 935 sc_list.Clear(); 936 937 uint32_t oso_idx = 0; 938 SymbolFileDWARF *oso_dwarf; 939 while ((oso_dwarf = GetSymbolFileByOSOIndex (oso_idx++)) != NULL) 940 { 941 uint32_t sc_idx = sc_list.GetSize(); 942 943 if (oso_dwarf->FindFunctions(regex, include_inlines, true, sc_list)) 944 { 945 RemoveFunctionsWithModuleNotEqualTo (m_obj_file->GetModule(), sc_list, sc_idx); 946 } 947 } 948 949 return sc_list.GetSize() - initial_size; 950 } 951 952 TypeSP 953 SymbolFileDWARFDebugMap::FindDefinitionTypeForDIE (DWARFCompileUnit* cu, 954 const DWARFDebugInfoEntry *die, 955 const ConstString &type_name) 956 { 957 TypeSP type_sp; 958 SymbolFileDWARF *oso_dwarf; 959 for (uint32_t oso_idx = 0; ((oso_dwarf = GetSymbolFileByOSOIndex (oso_idx)) != NULL); ++oso_idx) 960 { 961 type_sp = oso_dwarf->FindDefinitionTypeForDIE (cu, die, type_name); 962 if (type_sp) 963 break; 964 } 965 return type_sp; 966 } 967 968 969 970 bool 971 SymbolFileDWARFDebugMap::Supports_DW_AT_APPLE_objc_complete_type (SymbolFileDWARF *skip_dwarf_oso) 972 { 973 if (m_supports_DW_AT_APPLE_objc_complete_type == eLazyBoolCalculate) 974 { 975 m_supports_DW_AT_APPLE_objc_complete_type = eLazyBoolNo; 976 SymbolFileDWARF *oso_dwarf; 977 for (uint32_t oso_idx = 0; ((oso_dwarf = GetSymbolFileByOSOIndex (oso_idx)) != NULL); ++oso_idx) 978 { 979 if (skip_dwarf_oso != oso_dwarf && oso_dwarf->Supports_DW_AT_APPLE_objc_complete_type(NULL)) 980 { 981 m_supports_DW_AT_APPLE_objc_complete_type = eLazyBoolYes; 982 break; 983 } 984 } 985 } 986 return m_supports_DW_AT_APPLE_objc_complete_type == eLazyBoolYes; 987 } 988 989 TypeSP 990 SymbolFileDWARFDebugMap::FindCompleteObjCDefinitionTypeForDIE (const DWARFDebugInfoEntry *die, 991 const ConstString &type_name, 992 bool must_be_implementation) 993 { 994 TypeSP type_sp; 995 SymbolFileDWARF *oso_dwarf; 996 for (uint32_t oso_idx = 0; ((oso_dwarf = GetSymbolFileByOSOIndex (oso_idx)) != NULL); ++oso_idx) 997 { 998 type_sp = oso_dwarf->FindCompleteObjCDefinitionTypeForDIE (die, type_name, must_be_implementation); 999 if (type_sp) 1000 break; 1001 } 1002 return type_sp; 1003 } 1004 1005 uint32_t 1006 SymbolFileDWARFDebugMap::FindTypes 1007 ( 1008 const SymbolContext& sc, 1009 const ConstString &name, 1010 const ClangNamespaceDecl *namespace_decl, 1011 bool append, 1012 uint32_t max_matches, 1013 TypeList& types 1014 ) 1015 { 1016 if (!append) 1017 types.Clear(); 1018 1019 const uint32_t initial_types_size = types.GetSize(); 1020 SymbolFileDWARF *oso_dwarf; 1021 1022 if (sc.comp_unit) 1023 { 1024 oso_dwarf = GetSymbolFile (sc); 1025 if (oso_dwarf) 1026 return oso_dwarf->FindTypes (sc, name, namespace_decl, append, max_matches, types); 1027 } 1028 else 1029 { 1030 uint32_t oso_idx = 0; 1031 while ((oso_dwarf = GetSymbolFileByOSOIndex (oso_idx++)) != NULL) 1032 oso_dwarf->FindTypes (sc, name, namespace_decl, append, max_matches, types); 1033 } 1034 1035 return types.GetSize() - initial_types_size; 1036 } 1037 1038 // 1039 //uint32_t 1040 //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) 1041 //{ 1042 // SymbolFileDWARF *oso_dwarf = GetSymbolFile (sc); 1043 // if (oso_dwarf) 1044 // return oso_dwarf->FindTypes (sc, regex, append, max_matches, encoding, udt_uid, types); 1045 // return 0; 1046 //} 1047 1048 1049 ClangNamespaceDecl 1050 SymbolFileDWARFDebugMap::FindNamespace (const lldb_private::SymbolContext& sc, 1051 const lldb_private::ConstString &name, 1052 const ClangNamespaceDecl *parent_namespace_decl) 1053 { 1054 ClangNamespaceDecl matching_namespace; 1055 SymbolFileDWARF *oso_dwarf; 1056 1057 if (sc.comp_unit) 1058 { 1059 oso_dwarf = GetSymbolFile (sc); 1060 if (oso_dwarf) 1061 matching_namespace = oso_dwarf->FindNamespace (sc, name, parent_namespace_decl); 1062 } 1063 else 1064 { 1065 for (uint32_t oso_idx = 0; 1066 ((oso_dwarf = GetSymbolFileByOSOIndex (oso_idx)) != NULL); 1067 ++oso_idx) 1068 { 1069 matching_namespace = oso_dwarf->FindNamespace (sc, name, parent_namespace_decl); 1070 1071 if (matching_namespace) 1072 break; 1073 } 1074 } 1075 1076 return matching_namespace; 1077 } 1078 1079 //------------------------------------------------------------------ 1080 // PluginInterface protocol 1081 //------------------------------------------------------------------ 1082 const char * 1083 SymbolFileDWARFDebugMap::GetPluginName() 1084 { 1085 return "SymbolFileDWARFDebugMap"; 1086 } 1087 1088 const char * 1089 SymbolFileDWARFDebugMap::GetShortPluginName() 1090 { 1091 return GetPluginNameStatic(); 1092 } 1093 1094 uint32_t 1095 SymbolFileDWARFDebugMap::GetPluginVersion() 1096 { 1097 return 1; 1098 } 1099 1100 void 1101 SymbolFileDWARFDebugMap::SetCompileUnit (SymbolFileDWARF *oso_dwarf, const CompUnitSP &cu_sp) 1102 { 1103 const uint32_t cu_count = GetNumCompileUnits(); 1104 for (uint32_t i=0; i<cu_count; ++i) 1105 { 1106 if (m_compile_unit_infos[i].oso_symbol_vendor && 1107 m_compile_unit_infos[i].oso_symbol_vendor->GetSymbolFile() == oso_dwarf) 1108 { 1109 if (m_compile_unit_infos[i].oso_compile_unit_sp) 1110 { 1111 assert (m_compile_unit_infos[i].oso_compile_unit_sp.get() == cu_sp.get()); 1112 } 1113 else 1114 { 1115 m_compile_unit_infos[i].oso_compile_unit_sp = cu_sp; 1116 } 1117 } 1118 } 1119 } 1120 1121 1122 void 1123 SymbolFileDWARFDebugMap::CompleteTagDecl (void *baton, clang::TagDecl *decl) 1124 { 1125 SymbolFileDWARFDebugMap *symbol_file_dwarf = (SymbolFileDWARFDebugMap *)baton; 1126 clang_type_t clang_type = symbol_file_dwarf->GetClangASTContext().GetTypeForDecl (decl); 1127 if (clang_type) 1128 { 1129 SymbolFileDWARF *oso_dwarf; 1130 1131 for (uint32_t oso_idx = 0; ((oso_dwarf = symbol_file_dwarf->GetSymbolFileByOSOIndex (oso_idx)) != NULL); ++oso_idx) 1132 { 1133 if (oso_dwarf->HasForwardDeclForClangType (clang_type)) 1134 { 1135 oso_dwarf->ResolveClangOpaqueTypeDefinition (clang_type); 1136 return; 1137 } 1138 } 1139 } 1140 } 1141 1142 void 1143 SymbolFileDWARFDebugMap::CompleteObjCInterfaceDecl (void *baton, clang::ObjCInterfaceDecl *decl) 1144 { 1145 SymbolFileDWARFDebugMap *symbol_file_dwarf = (SymbolFileDWARFDebugMap *)baton; 1146 clang_type_t clang_type = symbol_file_dwarf->GetClangASTContext().GetTypeForDecl (decl); 1147 if (clang_type) 1148 { 1149 SymbolFileDWARF *oso_dwarf; 1150 1151 for (uint32_t oso_idx = 0; ((oso_dwarf = symbol_file_dwarf->GetSymbolFileByOSOIndex (oso_idx)) != NULL); ++oso_idx) 1152 { 1153 if (oso_dwarf->HasForwardDeclForClangType (clang_type)) 1154 { 1155 oso_dwarf->ResolveClangOpaqueTypeDefinition (clang_type); 1156 return; 1157 } 1158 } 1159 } 1160 } 1161 1162 bool 1163 SymbolFileDWARFDebugMap::LayoutRecordType (void *baton, 1164 const clang::RecordDecl *record_decl, 1165 uint64_t &size, 1166 uint64_t &alignment, 1167 llvm::DenseMap <const clang::FieldDecl *, uint64_t> &field_offsets, 1168 llvm::DenseMap <const clang::CXXRecordDecl *, clang::CharUnits> &base_offsets, 1169 llvm::DenseMap <const clang::CXXRecordDecl *, clang::CharUnits> &vbase_offsets) 1170 { 1171 SymbolFileDWARFDebugMap *symbol_file_dwarf = (SymbolFileDWARFDebugMap *)baton; 1172 SymbolFileDWARF *oso_dwarf; 1173 for (uint32_t oso_idx = 0; ((oso_dwarf = symbol_file_dwarf->GetSymbolFileByOSOIndex (oso_idx)) != NULL); ++oso_idx) 1174 { 1175 if (oso_dwarf->LayoutRecordType (record_decl, size, alignment, field_offsets, base_offsets, vbase_offsets)) 1176 return true; 1177 } 1178 return false; 1179 } 1180 1181 1182 1183 clang::DeclContext* 1184 SymbolFileDWARFDebugMap::GetClangDeclContextContainingTypeUID (lldb::user_id_t type_uid) 1185 { 1186 const uint64_t oso_idx = GetOSOIndexFromUserID (type_uid); 1187 SymbolFileDWARF *oso_dwarf = GetSymbolFileByOSOIndex (oso_idx); 1188 if (oso_dwarf) 1189 return oso_dwarf->GetClangDeclContextContainingTypeUID (type_uid); 1190 return NULL; 1191 } 1192 1193 clang::DeclContext* 1194 SymbolFileDWARFDebugMap::GetClangDeclContextForTypeUID (const lldb_private::SymbolContext &sc, lldb::user_id_t type_uid) 1195 { 1196 const uint64_t oso_idx = GetOSOIndexFromUserID (type_uid); 1197 SymbolFileDWARF *oso_dwarf = GetSymbolFileByOSOIndex (oso_idx); 1198 if (oso_dwarf) 1199 return oso_dwarf->GetClangDeclContextForTypeUID (sc, type_uid); 1200 return NULL; 1201 } 1202 1203 1204