1 //===-- SymbolFileDWARFDebugMap.cpp ---------------------------------------===// 2 // 3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. 4 // See https://llvm.org/LICENSE.txt for license information. 5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception 6 // 7 //===----------------------------------------------------------------------===// 8 9 #include "SymbolFileDWARFDebugMap.h" 10 #include "DWARFCompileUnit.h" 11 #include "DWARFDebugAranges.h" 12 #include "DWARFDebugInfo.h" 13 14 #include "lldb/Core/Module.h" 15 #include "lldb/Core/ModuleList.h" 16 #include "lldb/Core/PluginManager.h" 17 #include "lldb/Core/Section.h" 18 #include "lldb/Host/FileSystem.h" 19 #include "lldb/Utility/RangeMap.h" 20 #include "lldb/Utility/RegularExpression.h" 21 #include "lldb/Utility/StreamString.h" 22 #include "lldb/Utility/StructuredData.h" 23 #include "lldb/Utility/Timer.h" 24 25 //#define DEBUG_OSO_DMAP // DO NOT CHECKIN WITH THIS NOT COMMENTED OUT 26 27 #include "lldb/Symbol/CompileUnit.h" 28 #include "lldb/Symbol/LineTable.h" 29 #include "lldb/Symbol/ObjectFile.h" 30 #include "lldb/Symbol/SymbolVendor.h" 31 #include "lldb/Symbol/TypeMap.h" 32 #include "lldb/Symbol/VariableList.h" 33 #include "llvm/ADT/STLExtras.h" 34 #include "llvm/Support/ScopedPrinter.h" 35 36 #include "lldb/Target/StackFrame.h" 37 38 #include "LogChannelDWARF.h" 39 #include "SymbolFileDWARF.h" 40 41 #include <memory> 42 #include <optional> 43 44 using namespace lldb; 45 using namespace lldb_private; 46 using namespace lldb_private::plugin::dwarf; 47 48 char SymbolFileDWARFDebugMap::ID; 49 50 // Subclass lldb_private::Module so we can intercept the 51 // "Module::GetObjectFile()" (so we can fixup the object file sections) and 52 // also for "Module::GetSymbolFile()" (so we can fixup the symbol file id. 53 54 const SymbolFileDWARFDebugMap::FileRangeMap & 55 SymbolFileDWARFDebugMap::CompileUnitInfo::GetFileRangeMap( 56 SymbolFileDWARFDebugMap *exe_symfile) { 57 if (file_range_map_valid) 58 return file_range_map; 59 60 file_range_map_valid = true; 61 62 Module *oso_module = exe_symfile->GetModuleByCompUnitInfo(this); 63 if (!oso_module) 64 return file_range_map; 65 66 ObjectFile *oso_objfile = oso_module->GetObjectFile(); 67 if (!oso_objfile) 68 return file_range_map; 69 70 Log *log = GetLog(DWARFLog::DebugMap); 71 LLDB_LOGF( 72 log, 73 "%p: SymbolFileDWARFDebugMap::CompileUnitInfo::GetFileRangeMap ('%s')", 74 static_cast<void *>(this), 75 oso_module->GetSpecificationDescription().c_str()); 76 77 std::vector<SymbolFileDWARFDebugMap::CompileUnitInfo *> cu_infos; 78 if (exe_symfile->GetCompUnitInfosForModule(oso_module, cu_infos)) { 79 for (auto comp_unit_info : cu_infos) { 80 Symtab *exe_symtab = exe_symfile->GetObjectFile()->GetSymtab(); 81 ModuleSP oso_module_sp(oso_objfile->GetModule()); 82 Symtab *oso_symtab = oso_objfile->GetSymtab(); 83 84 /// const uint32_t fun_resolve_flags = SymbolContext::Module | 85 /// eSymbolContextCompUnit | eSymbolContextFunction; 86 // SectionList *oso_sections = oso_objfile->Sections(); 87 // Now we need to make sections that map from zero based object file 88 // addresses to where things ended up in the main executable. 89 90 assert(comp_unit_info->first_symbol_index != UINT32_MAX); 91 // End index is one past the last valid symbol index 92 const uint32_t oso_end_idx = comp_unit_info->last_symbol_index + 1; 93 for (uint32_t idx = comp_unit_info->first_symbol_index + 94 2; // Skip the N_SO and N_OSO 95 idx < oso_end_idx; ++idx) { 96 Symbol *exe_symbol = exe_symtab->SymbolAtIndex(idx); 97 if (exe_symbol) { 98 if (!exe_symbol->IsDebug()) 99 continue; 100 101 switch (exe_symbol->GetType()) { 102 default: 103 break; 104 105 case eSymbolTypeCode: { 106 // For each N_FUN, or function that we run into in the debug map we 107 // make a new section that we add to the sections found in the .o 108 // file. This new section has the file address set to what the 109 // addresses are in the .o file, and the load address is adjusted 110 // to match where it ended up in the final executable! We do this 111 // before we parse any dwarf info so that when it goes get parsed 112 // all section/offset addresses that get registered will resolve 113 // correctly to the new addresses in the main executable. 114 115 // First we find the original symbol in the .o file's symbol table 116 Symbol *oso_fun_symbol = oso_symtab->FindFirstSymbolWithNameAndType( 117 exe_symbol->GetMangled().GetName(Mangled::ePreferMangled), 118 eSymbolTypeCode, Symtab::eDebugNo, Symtab::eVisibilityAny); 119 if (oso_fun_symbol) { 120 // Add the inverse OSO file address to debug map entry mapping 121 exe_symfile->AddOSOFileRange( 122 this, exe_symbol->GetAddressRef().GetFileAddress(), 123 exe_symbol->GetByteSize(), 124 oso_fun_symbol->GetAddressRef().GetFileAddress(), 125 oso_fun_symbol->GetByteSize()); 126 } 127 } break; 128 129 case eSymbolTypeData: { 130 // For each N_GSYM we remap the address for the global by making a 131 // new section that we add to the sections found in the .o file. 132 // This new section has the file address set to what the addresses 133 // are in the .o file, and the load address is adjusted to match 134 // where it ended up in the final executable! We do this before we 135 // parse any dwarf info so that when it goes get parsed all 136 // section/offset addresses that get registered will resolve 137 // correctly to the new addresses in the main executable. We 138 // initially set the section size to be 1 byte, but will need to 139 // fix up these addresses further after all globals have been 140 // parsed to span the gaps, or we can find the global variable 141 // sizes from the DWARF info as we are parsing. 142 143 // Next we find the non-stab entry that corresponds to the N_GSYM 144 // in the .o file 145 Symbol *oso_gsym_symbol = 146 oso_symtab->FindFirstSymbolWithNameAndType( 147 exe_symbol->GetMangled().GetName(Mangled::ePreferMangled), 148 eSymbolTypeData, Symtab::eDebugNo, Symtab::eVisibilityAny); 149 if (exe_symbol && oso_gsym_symbol && exe_symbol->ValueIsAddress() && 150 oso_gsym_symbol->ValueIsAddress()) { 151 // Add the inverse OSO file address to debug map entry mapping 152 exe_symfile->AddOSOFileRange( 153 this, exe_symbol->GetAddressRef().GetFileAddress(), 154 exe_symbol->GetByteSize(), 155 oso_gsym_symbol->GetAddressRef().GetFileAddress(), 156 oso_gsym_symbol->GetByteSize()); 157 } 158 } break; 159 } 160 } 161 } 162 163 exe_symfile->FinalizeOSOFileRanges(this); 164 // We don't need the symbols anymore for the .o files 165 oso_objfile->ClearSymtab(); 166 } 167 } 168 return file_range_map; 169 } 170 171 namespace lldb_private::plugin { 172 namespace dwarf { 173 class DebugMapModule : public Module { 174 public: 175 DebugMapModule(const ModuleSP &exe_module_sp, uint32_t cu_idx, 176 const FileSpec &file_spec, const ArchSpec &arch, 177 ConstString object_name, off_t object_offset, 178 const llvm::sys::TimePoint<> object_mod_time) 179 : Module(file_spec, arch, object_name, object_offset, object_mod_time), 180 m_exe_module_wp(exe_module_sp), m_cu_idx(cu_idx) {} 181 182 ~DebugMapModule() override = default; 183 184 SymbolFile * 185 GetSymbolFile(bool can_create = true, 186 lldb_private::Stream *feedback_strm = nullptr) override { 187 // Scope for locker 188 if (m_symfile_up.get() || !can_create) 189 return m_symfile_up ? m_symfile_up->GetSymbolFile() : nullptr; 190 191 ModuleSP exe_module_sp(m_exe_module_wp.lock()); 192 if (exe_module_sp) { 193 // Now get the object file outside of a locking scope 194 ObjectFile *oso_objfile = GetObjectFile(); 195 if (oso_objfile) { 196 std::lock_guard<std::recursive_mutex> guard(m_mutex); 197 if (SymbolFile *symfile = 198 Module::GetSymbolFile(can_create, feedback_strm)) { 199 // Set a pointer to this class to set our OSO DWARF file know that 200 // the DWARF is being used along with a debug map and that it will 201 // have the remapped sections that we do below. 202 SymbolFileDWARF *oso_symfile = 203 SymbolFileDWARFDebugMap::GetSymbolFileAsSymbolFileDWARF(symfile); 204 205 if (!oso_symfile) 206 return nullptr; 207 208 ObjectFile *exe_objfile = exe_module_sp->GetObjectFile(); 209 SymbolFile *exe_symfile = exe_module_sp->GetSymbolFile(); 210 211 if (exe_objfile && exe_symfile) { 212 oso_symfile->SetDebugMapModule(exe_module_sp); 213 // Set the ID of the symbol file DWARF to the index of the OSO 214 // shifted left by 32 bits to provide a unique prefix for any 215 // UserID's that get created in the symbol file. 216 oso_symfile->SetFileIndex((uint64_t)m_cu_idx); 217 } 218 return symfile; 219 } 220 } 221 } 222 return nullptr; 223 } 224 225 protected: 226 ModuleWP m_exe_module_wp; 227 const uint32_t m_cu_idx; 228 }; 229 } // namespace dwarf 230 } // namespace lldb_private::plugin 231 232 void SymbolFileDWARFDebugMap::Initialize() { 233 PluginManager::RegisterPlugin(GetPluginNameStatic(), 234 GetPluginDescriptionStatic(), CreateInstance); 235 } 236 237 void SymbolFileDWARFDebugMap::Terminate() { 238 PluginManager::UnregisterPlugin(CreateInstance); 239 } 240 241 llvm::StringRef SymbolFileDWARFDebugMap::GetPluginDescriptionStatic() { 242 return "DWARF and DWARF3 debug symbol file reader (debug map)."; 243 } 244 245 SymbolFile *SymbolFileDWARFDebugMap::CreateInstance(ObjectFileSP objfile_sp) { 246 return new SymbolFileDWARFDebugMap(std::move(objfile_sp)); 247 } 248 249 SymbolFileDWARFDebugMap::SymbolFileDWARFDebugMap(ObjectFileSP objfile_sp) 250 : SymbolFileCommon(std::move(objfile_sp)), m_flags(), m_compile_unit_infos(), 251 m_func_indexes(), m_glob_indexes(), 252 m_supports_DW_AT_APPLE_objc_complete_type(eLazyBoolCalculate) {} 253 254 SymbolFileDWARFDebugMap::~SymbolFileDWARFDebugMap() = default; 255 256 void SymbolFileDWARFDebugMap::InitializeObject() {} 257 258 void SymbolFileDWARFDebugMap::InitOSO() { 259 if (m_flags.test(kHaveInitializedOSOs)) 260 return; 261 262 m_flags.set(kHaveInitializedOSOs); 263 264 // If the object file has been stripped, there is no sense in looking further 265 // as all of the debug symbols for the debug map will not be available 266 if (m_objfile_sp->IsStripped()) 267 return; 268 269 // Also make sure the file type is some sort of executable. Core files, debug 270 // info files (dSYM), object files (.o files), and stub libraries all can 271 switch (m_objfile_sp->GetType()) { 272 case ObjectFile::eTypeInvalid: 273 case ObjectFile::eTypeCoreFile: 274 case ObjectFile::eTypeDebugInfo: 275 case ObjectFile::eTypeObjectFile: 276 case ObjectFile::eTypeStubLibrary: 277 case ObjectFile::eTypeUnknown: 278 case ObjectFile::eTypeJIT: 279 return; 280 281 case ObjectFile::eTypeExecutable: 282 case ObjectFile::eTypeDynamicLinker: 283 case ObjectFile::eTypeSharedLibrary: 284 break; 285 } 286 287 // In order to get the abilities of this plug-in, we look at the list of 288 // N_OSO entries (object files) from the symbol table and make sure that 289 // these files exist and also contain valid DWARF. If we get any of that then 290 // we return the abilities of the first N_OSO's DWARF. 291 292 Symtab *symtab = m_objfile_sp->GetSymtab(); 293 if (!symtab) 294 return; 295 296 Log *log = GetLog(DWARFLog::DebugMap); 297 298 std::vector<uint32_t> oso_indexes; 299 // When a mach-o symbol is encoded, the n_type field is encoded in bits 300 // 23:16, and the n_desc field is encoded in bits 15:0. 301 // 302 // To find all N_OSO entries that are part of the DWARF + debug map we find 303 // only object file symbols with the flags value as follows: bits 23:16 == 304 // 0x66 (N_OSO) bits 15: 0 == 0x0001 (specifies this is a debug map object 305 // file) 306 const uint32_t k_oso_symbol_flags_value = 0x660001u; 307 308 const uint32_t oso_index_count = 309 symtab->AppendSymbolIndexesWithTypeAndFlagsValue( 310 eSymbolTypeObjectFile, k_oso_symbol_flags_value, oso_indexes); 311 312 if (oso_index_count == 0) 313 return; 314 315 symtab->AppendSymbolIndexesWithType(eSymbolTypeCode, Symtab::eDebugYes, 316 Symtab::eVisibilityAny, m_func_indexes); 317 symtab->AppendSymbolIndexesWithType(eSymbolTypeData, Symtab::eDebugYes, 318 Symtab::eVisibilityAny, m_glob_indexes); 319 320 symtab->SortSymbolIndexesByValue(m_func_indexes, true); 321 symtab->SortSymbolIndexesByValue(m_glob_indexes, true); 322 323 for (uint32_t sym_idx : 324 llvm::concat<uint32_t>(m_func_indexes, m_glob_indexes)) { 325 const Symbol *symbol = symtab->SymbolAtIndex(sym_idx); 326 lldb::addr_t file_addr = symbol->GetAddressRef().GetFileAddress(); 327 lldb::addr_t byte_size = symbol->GetByteSize(); 328 DebugMap::Entry debug_map_entry(file_addr, byte_size, 329 OSOEntry(sym_idx, LLDB_INVALID_ADDRESS)); 330 m_debug_map.Append(debug_map_entry); 331 } 332 m_debug_map.Sort(); 333 334 m_compile_unit_infos.resize(oso_index_count); 335 336 for (uint32_t i = 0; i < oso_index_count; ++i) { 337 const uint32_t so_idx = oso_indexes[i] - 1; 338 const uint32_t oso_idx = oso_indexes[i]; 339 const Symbol *so_symbol = symtab->SymbolAtIndex(so_idx); 340 const Symbol *oso_symbol = symtab->SymbolAtIndex(oso_idx); 341 if (so_symbol && oso_symbol && 342 so_symbol->GetType() == eSymbolTypeSourceFile && 343 oso_symbol->GetType() == eSymbolTypeObjectFile) { 344 m_compile_unit_infos[i].so_file.SetFile(so_symbol->GetName().AsCString(), 345 FileSpec::Style::native); 346 m_compile_unit_infos[i].oso_path = oso_symbol->GetName(); 347 m_compile_unit_infos[i].oso_mod_time = 348 llvm::sys::toTimePoint(oso_symbol->GetIntegerValue(0)); 349 uint32_t sibling_idx = so_symbol->GetSiblingIndex(); 350 // The sibling index can't be less that or equal to the current index 351 // "i" 352 if (sibling_idx <= i || sibling_idx == UINT32_MAX) { 353 m_objfile_sp->GetModule()->ReportError( 354 "N_SO in symbol with UID {0} has invalid sibling in debug " 355 "map, " 356 "please file a bug and attach the binary listed in this error", 357 so_symbol->GetID()); 358 } else { 359 const Symbol *last_symbol = symtab->SymbolAtIndex(sibling_idx - 1); 360 m_compile_unit_infos[i].first_symbol_index = so_idx; 361 m_compile_unit_infos[i].last_symbol_index = sibling_idx - 1; 362 m_compile_unit_infos[i].first_symbol_id = so_symbol->GetID(); 363 m_compile_unit_infos[i].last_symbol_id = last_symbol->GetID(); 364 365 LLDB_LOGF(log, "Initialized OSO 0x%8.8x: file=%s", i, 366 oso_symbol->GetName().GetCString()); 367 } 368 } else { 369 if (oso_symbol == nullptr) 370 m_objfile_sp->GetModule()->ReportError( 371 "N_OSO symbol[{0}] can't be found, please file a bug and " 372 "attach " 373 "the binary listed in this error", 374 oso_idx); 375 else if (so_symbol == nullptr) 376 m_objfile_sp->GetModule()->ReportError( 377 "N_SO not found for N_OSO symbol[{0}], please file a bug and " 378 "attach the binary listed in this error", 379 oso_idx); 380 else if (so_symbol->GetType() != eSymbolTypeSourceFile) 381 m_objfile_sp->GetModule()->ReportError( 382 "N_SO has incorrect symbol type ({0}) for N_OSO " 383 "symbol[{1}], " 384 "please file a bug and attach the binary listed in this error", 385 so_symbol->GetType(), oso_idx); 386 else if (oso_symbol->GetType() != eSymbolTypeSourceFile) 387 m_objfile_sp->GetModule()->ReportError( 388 "N_OSO has incorrect symbol type ({0}) for N_OSO " 389 "symbol[{1}], " 390 "please file a bug and attach the binary listed in this error", 391 oso_symbol->GetType(), oso_idx); 392 } 393 } 394 } 395 396 Module *SymbolFileDWARFDebugMap::GetModuleByOSOIndex(uint32_t oso_idx) { 397 const uint32_t cu_count = GetNumCompileUnits(); 398 if (oso_idx < cu_count) 399 return GetModuleByCompUnitInfo(&m_compile_unit_infos[oso_idx]); 400 return nullptr; 401 } 402 403 Module *SymbolFileDWARFDebugMap::GetModuleByCompUnitInfo( 404 CompileUnitInfo *comp_unit_info) { 405 if (!comp_unit_info->oso_sp) { 406 auto pos = m_oso_map.find( 407 {comp_unit_info->oso_path, comp_unit_info->oso_mod_time}); 408 if (pos != m_oso_map.end()) { 409 comp_unit_info->oso_sp = pos->second; 410 } else { 411 ObjectFile *obj_file = GetObjectFile(); 412 comp_unit_info->oso_sp = std::make_shared<OSOInfo>(); 413 m_oso_map[{comp_unit_info->oso_path, comp_unit_info->oso_mod_time}] = 414 comp_unit_info->oso_sp; 415 const char *oso_path = comp_unit_info->oso_path.GetCString(); 416 FileSpec oso_file(oso_path); 417 ConstString oso_object; 418 if (FileSystem::Instance().Exists(oso_file)) { 419 // The modification time returned by the FS can have a higher precision 420 // than the one from the CU. 421 auto oso_mod_time = std::chrono::time_point_cast<std::chrono::seconds>( 422 FileSystem::Instance().GetModificationTime(oso_file)); 423 // A timestamp of 0 means that the linker was in deterministic mode. In 424 // that case, we should skip the check against the filesystem last 425 // modification timestamp, since it will never match. 426 if (comp_unit_info->oso_mod_time != llvm::sys::TimePoint<>() && 427 oso_mod_time != comp_unit_info->oso_mod_time) { 428 comp_unit_info->oso_load_error.SetErrorStringWithFormat( 429 "debug map object file \"%s\" changed (actual: 0x%8.8x, debug " 430 "map: 0x%8.8x) since this executable was linked, debug info " 431 "will not be loaded", oso_file.GetPath().c_str(), 432 (uint32_t)llvm::sys::toTimeT(oso_mod_time), 433 (uint32_t)llvm::sys::toTimeT(comp_unit_info->oso_mod_time)); 434 obj_file->GetModule()->ReportError( 435 "{0}", comp_unit_info->oso_load_error.AsCString()); 436 return nullptr; 437 } 438 439 } else { 440 const bool must_exist = true; 441 442 if (!ObjectFile::SplitArchivePathWithObject(oso_path, oso_file, 443 oso_object, must_exist)) { 444 comp_unit_info->oso_load_error.SetErrorStringWithFormat( 445 "debug map object file \"%s\" containing debug info does not " 446 "exist, debug info will not be loaded", 447 comp_unit_info->oso_path.GetCString()); 448 return nullptr; 449 } 450 } 451 // Always create a new module for .o files. Why? Because we use the debug 452 // map, to add new sections to each .o file and even though a .o file 453 // might not have changed, the sections that get added to the .o file can 454 // change. 455 ArchSpec oso_arch; 456 // Only adopt the architecture from the module (not the vendor or OS) 457 // since .o files for "i386-apple-ios" will historically show up as "i386 458 // -apple-macosx" due to the lack of a LC_VERSION_MIN_MACOSX or 459 // LC_VERSION_MIN_IPHONEOS load command... 460 oso_arch.SetTriple(m_objfile_sp->GetModule() 461 ->GetArchitecture() 462 .GetTriple() 463 .getArchName() 464 .str() 465 .c_str()); 466 comp_unit_info->oso_sp->module_sp = std::make_shared<DebugMapModule>( 467 obj_file->GetModule(), GetCompUnitInfoIndex(comp_unit_info), oso_file, 468 oso_arch, oso_object, 0, 469 oso_object ? comp_unit_info->oso_mod_time : llvm::sys::TimePoint<>()); 470 471 if (oso_object && !comp_unit_info->oso_sp->module_sp->GetObjectFile() && 472 FileSystem::Instance().Exists(oso_file)) { 473 // If we are loading a .o file from a .a file the "oso_object" will 474 // have a valid value name and if the .a file exists, either the .o 475 // file didn't exist in the .a file or the mod time didn't match. 476 comp_unit_info->oso_load_error.SetErrorStringWithFormat( 477 "\"%s\" object from the \"%s\" archive: " 478 "either the .o file doesn't exist in the archive or the " 479 "modification time (0x%8.8x) of the .o file doesn't match", 480 oso_object.AsCString(), oso_file.GetPath().c_str(), 481 (uint32_t)llvm::sys::toTimeT(comp_unit_info->oso_mod_time)); 482 } 483 } 484 } 485 if (comp_unit_info->oso_sp) 486 return comp_unit_info->oso_sp->module_sp.get(); 487 return nullptr; 488 } 489 490 bool SymbolFileDWARFDebugMap::GetFileSpecForSO(uint32_t oso_idx, 491 FileSpec &file_spec) { 492 if (oso_idx < m_compile_unit_infos.size()) { 493 if (m_compile_unit_infos[oso_idx].so_file) { 494 file_spec = m_compile_unit_infos[oso_idx].so_file; 495 return true; 496 } 497 } 498 return false; 499 } 500 501 ObjectFile *SymbolFileDWARFDebugMap::GetObjectFileByOSOIndex(uint32_t oso_idx) { 502 Module *oso_module = GetModuleByOSOIndex(oso_idx); 503 if (oso_module) 504 return oso_module->GetObjectFile(); 505 return nullptr; 506 } 507 508 SymbolFileDWARF * 509 SymbolFileDWARFDebugMap::GetSymbolFile(const SymbolContext &sc) { 510 return GetSymbolFile(*sc.comp_unit); 511 } 512 513 SymbolFileDWARF * 514 SymbolFileDWARFDebugMap::GetSymbolFile(const CompileUnit &comp_unit) { 515 CompileUnitInfo *comp_unit_info = GetCompUnitInfo(comp_unit); 516 if (comp_unit_info) 517 return GetSymbolFileByCompUnitInfo(comp_unit_info); 518 return nullptr; 519 } 520 521 ObjectFile *SymbolFileDWARFDebugMap::GetObjectFileByCompUnitInfo( 522 CompileUnitInfo *comp_unit_info) { 523 Module *oso_module = GetModuleByCompUnitInfo(comp_unit_info); 524 if (oso_module) 525 return oso_module->GetObjectFile(); 526 return nullptr; 527 } 528 529 uint32_t SymbolFileDWARFDebugMap::GetCompUnitInfoIndex( 530 const CompileUnitInfo *comp_unit_info) { 531 if (!m_compile_unit_infos.empty()) { 532 const CompileUnitInfo *first_comp_unit_info = &m_compile_unit_infos.front(); 533 const CompileUnitInfo *last_comp_unit_info = &m_compile_unit_infos.back(); 534 if (first_comp_unit_info <= comp_unit_info && 535 comp_unit_info <= last_comp_unit_info) 536 return comp_unit_info - first_comp_unit_info; 537 } 538 return UINT32_MAX; 539 } 540 541 SymbolFileDWARF * 542 SymbolFileDWARFDebugMap::GetSymbolFileByOSOIndex(uint32_t oso_idx) { 543 unsigned size = m_compile_unit_infos.size(); 544 if (oso_idx < size) 545 return GetSymbolFileByCompUnitInfo(&m_compile_unit_infos[oso_idx]); 546 return nullptr; 547 } 548 549 SymbolFileDWARF * 550 SymbolFileDWARFDebugMap::GetSymbolFileAsSymbolFileDWARF(SymbolFile *sym_file) { 551 if (sym_file && 552 sym_file->GetPluginName() == SymbolFileDWARF::GetPluginNameStatic()) 553 return static_cast<SymbolFileDWARF *>(sym_file); 554 return nullptr; 555 } 556 557 SymbolFileDWARF *SymbolFileDWARFDebugMap::GetSymbolFileByCompUnitInfo( 558 CompileUnitInfo *comp_unit_info) { 559 if (Module *oso_module = GetModuleByCompUnitInfo(comp_unit_info)) 560 return GetSymbolFileAsSymbolFileDWARF(oso_module->GetSymbolFile()); 561 return nullptr; 562 } 563 564 uint32_t SymbolFileDWARFDebugMap::CalculateAbilities() { 565 // In order to get the abilities of this plug-in, we look at the list of 566 // N_OSO entries (object files) from the symbol table and make sure that 567 // these files exist and also contain valid DWARF. If we get any of that then 568 // we return the abilities of the first N_OSO's DWARF. 569 570 const uint32_t oso_index_count = GetNumCompileUnits(); 571 if (oso_index_count > 0) { 572 InitOSO(); 573 if (!m_compile_unit_infos.empty()) { 574 return SymbolFile::CompileUnits | SymbolFile::Functions | 575 SymbolFile::Blocks | SymbolFile::GlobalVariables | 576 SymbolFile::LocalVariables | SymbolFile::VariableTypes | 577 SymbolFile::LineTables; 578 } 579 } 580 return 0; 581 } 582 583 uint32_t SymbolFileDWARFDebugMap::CalculateNumCompileUnits() { 584 InitOSO(); 585 return m_compile_unit_infos.size(); 586 } 587 588 CompUnitSP SymbolFileDWARFDebugMap::ParseCompileUnitAtIndex(uint32_t cu_idx) { 589 CompUnitSP comp_unit_sp; 590 const uint32_t cu_count = GetNumCompileUnits(); 591 592 if (cu_idx < cu_count) { 593 auto &cu_info = m_compile_unit_infos[cu_idx]; 594 Module *oso_module = GetModuleByCompUnitInfo(&cu_info); 595 if (oso_module) { 596 FileSpec so_file_spec; 597 if (GetFileSpecForSO(cu_idx, so_file_spec)) { 598 // User zero as the ID to match the compile unit at offset zero in each 599 // .o file. 600 lldb::user_id_t cu_id = 0; 601 cu_info.compile_units_sps.push_back(std::make_shared<CompileUnit>( 602 m_objfile_sp->GetModule(), nullptr, 603 std::make_shared<SupportFile>(so_file_spec), cu_id, 604 eLanguageTypeUnknown, eLazyBoolCalculate)); 605 cu_info.id_to_index_map.insert({0, 0}); 606 SetCompileUnitAtIndex(cu_idx, cu_info.compile_units_sps[0]); 607 // If there's a symbol file also register all the extra compile units. 608 if (SymbolFileDWARF *oso_symfile = 609 GetSymbolFileByCompUnitInfo(&cu_info)) { 610 auto num_dwarf_units = oso_symfile->DebugInfo().GetNumUnits(); 611 for (size_t i = 0; i < num_dwarf_units; ++i) { 612 auto *dwarf_unit = oso_symfile->DebugInfo().GetUnitAtIndex(i); 613 if (auto *dwarf_cu = llvm::dyn_cast<DWARFCompileUnit>(dwarf_unit)) { 614 // The "main" one was already registered. 615 if (dwarf_cu->GetID() == 0) 616 continue; 617 cu_info.compile_units_sps.push_back(std::make_shared<CompileUnit>( 618 m_objfile_sp->GetModule(), nullptr, 619 std::make_shared<SupportFile>(so_file_spec), 620 dwarf_cu->GetID(), eLanguageTypeUnknown, eLazyBoolCalculate)); 621 cu_info.id_to_index_map.insert( 622 {dwarf_cu->GetID(), cu_info.compile_units_sps.size() - 1}); 623 } 624 } 625 } 626 } 627 } 628 if (!cu_info.compile_units_sps.empty()) 629 comp_unit_sp = cu_info.compile_units_sps[0]; 630 } 631 632 return comp_unit_sp; 633 } 634 635 SymbolFileDWARFDebugMap::CompileUnitInfo * 636 SymbolFileDWARFDebugMap::GetCompUnitInfo(const SymbolContext &sc) { 637 return GetCompUnitInfo(*sc.comp_unit); 638 } 639 640 SymbolFileDWARFDebugMap::CompileUnitInfo * 641 SymbolFileDWARFDebugMap::GetCompUnitInfo(const CompileUnit &comp_unit) { 642 const uint32_t cu_count = GetNumCompileUnits(); 643 for (uint32_t i = 0; i < cu_count; ++i) { 644 auto &id_to_index_map = m_compile_unit_infos[i].id_to_index_map; 645 646 auto it = id_to_index_map.find(comp_unit.GetID()); 647 if (it != id_to_index_map.end() && 648 &comp_unit == 649 m_compile_unit_infos[i].compile_units_sps[it->getSecond()].get()) 650 return &m_compile_unit_infos[i]; 651 } 652 return nullptr; 653 } 654 655 size_t SymbolFileDWARFDebugMap::GetCompUnitInfosForModule( 656 const lldb_private::Module *module, 657 std::vector<CompileUnitInfo *> &cu_infos) { 658 const uint32_t cu_count = GetNumCompileUnits(); 659 for (uint32_t i = 0; i < cu_count; ++i) { 660 if (module == GetModuleByCompUnitInfo(&m_compile_unit_infos[i])) 661 cu_infos.push_back(&m_compile_unit_infos[i]); 662 } 663 return cu_infos.size(); 664 } 665 666 lldb::LanguageType 667 SymbolFileDWARFDebugMap::ParseLanguage(CompileUnit &comp_unit) { 668 std::lock_guard<std::recursive_mutex> guard(GetModuleMutex()); 669 SymbolFileDWARF *oso_dwarf = GetSymbolFile(comp_unit); 670 if (oso_dwarf) 671 return oso_dwarf->ParseLanguage(comp_unit); 672 return eLanguageTypeUnknown; 673 } 674 675 XcodeSDK SymbolFileDWARFDebugMap::ParseXcodeSDK(CompileUnit &comp_unit) { 676 std::lock_guard<std::recursive_mutex> guard(GetModuleMutex()); 677 SymbolFileDWARF *oso_dwarf = GetSymbolFile(comp_unit); 678 if (oso_dwarf) 679 return oso_dwarf->ParseXcodeSDK(comp_unit); 680 return {}; 681 } 682 683 llvm::SmallSet<lldb::LanguageType, 4> 684 SymbolFileDWARFDebugMap::ParseAllLanguages( 685 lldb_private::CompileUnit &comp_unit) { 686 llvm::SmallSet<lldb::LanguageType, 4> langs; 687 auto *info = GetCompUnitInfo(comp_unit); 688 for (auto &comp_unit : info->compile_units_sps) { 689 langs.insert(comp_unit->GetLanguage()); 690 } 691 return langs; 692 } 693 694 size_t SymbolFileDWARFDebugMap::ParseFunctions(CompileUnit &comp_unit) { 695 std::lock_guard<std::recursive_mutex> guard(GetModuleMutex()); 696 SymbolFileDWARF *oso_dwarf = GetSymbolFile(comp_unit); 697 if (oso_dwarf) 698 return oso_dwarf->ParseFunctions(comp_unit); 699 return 0; 700 } 701 702 bool SymbolFileDWARFDebugMap::ParseLineTable(CompileUnit &comp_unit) { 703 std::lock_guard<std::recursive_mutex> guard(GetModuleMutex()); 704 SymbolFileDWARF *oso_dwarf = GetSymbolFile(comp_unit); 705 if (oso_dwarf) 706 return oso_dwarf->ParseLineTable(comp_unit); 707 return false; 708 } 709 710 bool SymbolFileDWARFDebugMap::ParseDebugMacros(CompileUnit &comp_unit) { 711 std::lock_guard<std::recursive_mutex> guard(GetModuleMutex()); 712 SymbolFileDWARF *oso_dwarf = GetSymbolFile(comp_unit); 713 if (oso_dwarf) 714 return oso_dwarf->ParseDebugMacros(comp_unit); 715 return false; 716 } 717 718 bool SymbolFileDWARFDebugMap::ForEachExternalModule( 719 CompileUnit &comp_unit, 720 llvm::DenseSet<lldb_private::SymbolFile *> &visited_symbol_files, 721 llvm::function_ref<bool(Module &)> f) { 722 std::lock_guard<std::recursive_mutex> guard(GetModuleMutex()); 723 SymbolFileDWARF *oso_dwarf = GetSymbolFile(comp_unit); 724 if (oso_dwarf) 725 return oso_dwarf->ForEachExternalModule(comp_unit, visited_symbol_files, f); 726 return false; 727 } 728 729 bool SymbolFileDWARFDebugMap::ParseSupportFiles( 730 CompileUnit &comp_unit, SupportFileList &support_files) { 731 std::lock_guard<std::recursive_mutex> guard(GetModuleMutex()); 732 SymbolFileDWARF *oso_dwarf = GetSymbolFile(comp_unit); 733 if (oso_dwarf) 734 return oso_dwarf->ParseSupportFiles(comp_unit, support_files); 735 return false; 736 } 737 738 bool SymbolFileDWARFDebugMap::ParseIsOptimized(CompileUnit &comp_unit) { 739 std::lock_guard<std::recursive_mutex> guard(GetModuleMutex()); 740 SymbolFileDWARF *oso_dwarf = GetSymbolFile(comp_unit); 741 if (oso_dwarf) 742 return oso_dwarf->ParseIsOptimized(comp_unit); 743 return false; 744 } 745 746 bool SymbolFileDWARFDebugMap::ParseImportedModules( 747 const SymbolContext &sc, std::vector<SourceModule> &imported_modules) { 748 std::lock_guard<std::recursive_mutex> guard(GetModuleMutex()); 749 SymbolFileDWARF *oso_dwarf = GetSymbolFile(sc); 750 if (oso_dwarf) 751 return oso_dwarf->ParseImportedModules(sc, imported_modules); 752 return false; 753 } 754 755 size_t SymbolFileDWARFDebugMap::ParseBlocksRecursive(Function &func) { 756 std::lock_guard<std::recursive_mutex> guard(GetModuleMutex()); 757 CompileUnit *comp_unit = func.GetCompileUnit(); 758 if (!comp_unit) 759 return 0; 760 761 SymbolFileDWARF *oso_dwarf = GetSymbolFile(*comp_unit); 762 if (oso_dwarf) 763 return oso_dwarf->ParseBlocksRecursive(func); 764 return 0; 765 } 766 767 size_t SymbolFileDWARFDebugMap::ParseTypes(CompileUnit &comp_unit) { 768 std::lock_guard<std::recursive_mutex> guard(GetModuleMutex()); 769 SymbolFileDWARF *oso_dwarf = GetSymbolFile(comp_unit); 770 if (oso_dwarf) 771 return oso_dwarf->ParseTypes(comp_unit); 772 return 0; 773 } 774 775 size_t 776 SymbolFileDWARFDebugMap::ParseVariablesForContext(const SymbolContext &sc) { 777 std::lock_guard<std::recursive_mutex> guard(GetModuleMutex()); 778 SymbolFileDWARF *oso_dwarf = GetSymbolFile(sc); 779 if (oso_dwarf) 780 return oso_dwarf->ParseVariablesForContext(sc); 781 return 0; 782 } 783 784 Type *SymbolFileDWARFDebugMap::ResolveTypeUID(lldb::user_id_t type_uid) { 785 std::lock_guard<std::recursive_mutex> guard(GetModuleMutex()); 786 const uint64_t oso_idx = GetOSOIndexFromUserID(type_uid); 787 SymbolFileDWARF *oso_dwarf = GetSymbolFileByOSOIndex(oso_idx); 788 if (oso_dwarf) 789 return oso_dwarf->ResolveTypeUID(type_uid); 790 return nullptr; 791 } 792 793 std::optional<SymbolFile::ArrayInfo> 794 SymbolFileDWARFDebugMap::GetDynamicArrayInfoForUID( 795 lldb::user_id_t type_uid, const lldb_private::ExecutionContext *exe_ctx) { 796 const uint64_t oso_idx = GetOSOIndexFromUserID(type_uid); 797 SymbolFileDWARF *oso_dwarf = GetSymbolFileByOSOIndex(oso_idx); 798 if (oso_dwarf) 799 return oso_dwarf->GetDynamicArrayInfoForUID(type_uid, exe_ctx); 800 return std::nullopt; 801 } 802 803 bool SymbolFileDWARFDebugMap::CompleteType(CompilerType &compiler_type) { 804 bool success = false; 805 if (compiler_type) { 806 ForEachSymbolFile([&](SymbolFileDWARF *oso_dwarf) -> bool { 807 if (oso_dwarf->HasForwardDeclForCompilerType(compiler_type)) { 808 oso_dwarf->CompleteType(compiler_type); 809 success = true; 810 return true; 811 } 812 return false; 813 }); 814 } 815 return success; 816 } 817 818 uint32_t 819 SymbolFileDWARFDebugMap::ResolveSymbolContext(const Address &exe_so_addr, 820 SymbolContextItem resolve_scope, 821 SymbolContext &sc) { 822 std::lock_guard<std::recursive_mutex> guard(GetModuleMutex()); 823 uint32_t resolved_flags = 0; 824 Symtab *symtab = m_objfile_sp->GetSymtab(); 825 if (symtab) { 826 const addr_t exe_file_addr = exe_so_addr.GetFileAddress(); 827 828 const DebugMap::Entry *debug_map_entry = 829 m_debug_map.FindEntryThatContains(exe_file_addr); 830 if (debug_map_entry) { 831 832 sc.symbol = 833 symtab->SymbolAtIndex(debug_map_entry->data.GetExeSymbolIndex()); 834 835 if (sc.symbol != nullptr) { 836 resolved_flags |= eSymbolContextSymbol; 837 838 uint32_t oso_idx = 0; 839 CompileUnitInfo *comp_unit_info = 840 GetCompileUnitInfoForSymbolWithID(sc.symbol->GetID(), &oso_idx); 841 if (comp_unit_info) { 842 comp_unit_info->GetFileRangeMap(this); 843 Module *oso_module = GetModuleByCompUnitInfo(comp_unit_info); 844 if (oso_module) { 845 lldb::addr_t oso_file_addr = 846 exe_file_addr - debug_map_entry->GetRangeBase() + 847 debug_map_entry->data.GetOSOFileAddress(); 848 Address oso_so_addr; 849 if (oso_module->ResolveFileAddress(oso_file_addr, oso_so_addr)) { 850 resolved_flags |= 851 oso_module->GetSymbolFile()->ResolveSymbolContext( 852 oso_so_addr, resolve_scope, sc); 853 } 854 } 855 } 856 } 857 } 858 } 859 return resolved_flags; 860 } 861 862 uint32_t SymbolFileDWARFDebugMap::ResolveSymbolContext( 863 const SourceLocationSpec &src_location_spec, 864 SymbolContextItem resolve_scope, SymbolContextList &sc_list) { 865 std::lock_guard<std::recursive_mutex> guard(GetModuleMutex()); 866 const uint32_t initial = sc_list.GetSize(); 867 const uint32_t cu_count = GetNumCompileUnits(); 868 869 for (uint32_t i = 0; i < cu_count; ++i) { 870 // If we are checking for inlines, then we need to look through all compile 871 // units no matter if "file_spec" matches. 872 bool resolve = src_location_spec.GetCheckInlines(); 873 874 if (!resolve) { 875 FileSpec so_file_spec; 876 if (GetFileSpecForSO(i, so_file_spec)) 877 resolve = 878 FileSpec::Match(src_location_spec.GetFileSpec(), so_file_spec); 879 } 880 if (resolve) { 881 SymbolFileDWARF *oso_dwarf = GetSymbolFileByOSOIndex(i); 882 if (oso_dwarf) 883 oso_dwarf->ResolveSymbolContext(src_location_spec, resolve_scope, 884 sc_list); 885 } 886 } 887 return sc_list.GetSize() - initial; 888 } 889 890 void SymbolFileDWARFDebugMap::PrivateFindGlobalVariables( 891 ConstString name, const CompilerDeclContext &parent_decl_ctx, 892 const std::vector<uint32_t> 893 &indexes, // Indexes into the symbol table that match "name" 894 uint32_t max_matches, VariableList &variables) { 895 const size_t match_count = indexes.size(); 896 for (size_t i = 0; i < match_count; ++i) { 897 uint32_t oso_idx; 898 CompileUnitInfo *comp_unit_info = 899 GetCompileUnitInfoForSymbolWithIndex(indexes[i], &oso_idx); 900 if (comp_unit_info) { 901 SymbolFileDWARF *oso_dwarf = GetSymbolFileByOSOIndex(oso_idx); 902 if (oso_dwarf) { 903 oso_dwarf->FindGlobalVariables(name, parent_decl_ctx, max_matches, 904 variables); 905 if (variables.GetSize() > max_matches) 906 break; 907 } 908 } 909 } 910 } 911 912 void SymbolFileDWARFDebugMap::FindGlobalVariables( 913 ConstString name, const CompilerDeclContext &parent_decl_ctx, 914 uint32_t max_matches, VariableList &variables) { 915 std::lock_guard<std::recursive_mutex> guard(GetModuleMutex()); 916 uint32_t total_matches = 0; 917 918 ForEachSymbolFile([&](SymbolFileDWARF *oso_dwarf) -> bool { 919 const uint32_t old_size = variables.GetSize(); 920 oso_dwarf->FindGlobalVariables(name, parent_decl_ctx, max_matches, 921 variables); 922 const uint32_t oso_matches = variables.GetSize() - old_size; 923 if (oso_matches > 0) { 924 total_matches += oso_matches; 925 926 // Are we getting all matches? 927 if (max_matches == UINT32_MAX) 928 return false; // Yep, continue getting everything 929 930 // If we have found enough matches, lets get out 931 if (max_matches >= total_matches) 932 return true; 933 934 // Update the max matches for any subsequent calls to find globals in any 935 // other object files with DWARF 936 max_matches -= oso_matches; 937 } 938 939 return false; 940 }); 941 } 942 943 void SymbolFileDWARFDebugMap::FindGlobalVariables( 944 const RegularExpression ®ex, uint32_t max_matches, 945 VariableList &variables) { 946 std::lock_guard<std::recursive_mutex> guard(GetModuleMutex()); 947 uint32_t total_matches = 0; 948 ForEachSymbolFile([&](SymbolFileDWARF *oso_dwarf) -> bool { 949 const uint32_t old_size = variables.GetSize(); 950 oso_dwarf->FindGlobalVariables(regex, max_matches, variables); 951 952 const uint32_t oso_matches = variables.GetSize() - old_size; 953 if (oso_matches > 0) { 954 total_matches += oso_matches; 955 956 // Are we getting all matches? 957 if (max_matches == UINT32_MAX) 958 return false; // Yep, continue getting everything 959 960 // If we have found enough matches, lets get out 961 if (max_matches >= total_matches) 962 return true; 963 964 // Update the max matches for any subsequent calls to find globals in any 965 // other object files with DWARF 966 max_matches -= oso_matches; 967 } 968 969 return false; 970 }); 971 } 972 973 int SymbolFileDWARFDebugMap::SymbolContainsSymbolWithIndex( 974 uint32_t *symbol_idx_ptr, const CompileUnitInfo *comp_unit_info) { 975 const uint32_t symbol_idx = *symbol_idx_ptr; 976 977 if (symbol_idx < comp_unit_info->first_symbol_index) 978 return -1; 979 980 if (symbol_idx <= comp_unit_info->last_symbol_index) 981 return 0; 982 983 return 1; 984 } 985 986 int SymbolFileDWARFDebugMap::SymbolContainsSymbolWithID( 987 user_id_t *symbol_idx_ptr, const CompileUnitInfo *comp_unit_info) { 988 const user_id_t symbol_id = *symbol_idx_ptr; 989 990 if (symbol_id < comp_unit_info->first_symbol_id) 991 return -1; 992 993 if (symbol_id <= comp_unit_info->last_symbol_id) 994 return 0; 995 996 return 1; 997 } 998 999 SymbolFileDWARFDebugMap::CompileUnitInfo * 1000 SymbolFileDWARFDebugMap::GetCompileUnitInfoForSymbolWithIndex( 1001 uint32_t symbol_idx, uint32_t *oso_idx_ptr) { 1002 const uint32_t oso_index_count = m_compile_unit_infos.size(); 1003 CompileUnitInfo *comp_unit_info = nullptr; 1004 if (oso_index_count) { 1005 comp_unit_info = (CompileUnitInfo *)bsearch( 1006 &symbol_idx, &m_compile_unit_infos[0], m_compile_unit_infos.size(), 1007 sizeof(CompileUnitInfo), 1008 (ComparisonFunction)SymbolContainsSymbolWithIndex); 1009 } 1010 1011 if (oso_idx_ptr) { 1012 if (comp_unit_info != nullptr) 1013 *oso_idx_ptr = comp_unit_info - &m_compile_unit_infos[0]; 1014 else 1015 *oso_idx_ptr = UINT32_MAX; 1016 } 1017 return comp_unit_info; 1018 } 1019 1020 SymbolFileDWARFDebugMap::CompileUnitInfo * 1021 SymbolFileDWARFDebugMap::GetCompileUnitInfoForSymbolWithID( 1022 user_id_t symbol_id, uint32_t *oso_idx_ptr) { 1023 const uint32_t oso_index_count = m_compile_unit_infos.size(); 1024 CompileUnitInfo *comp_unit_info = nullptr; 1025 if (oso_index_count) { 1026 comp_unit_info = (CompileUnitInfo *)::bsearch( 1027 &symbol_id, &m_compile_unit_infos[0], m_compile_unit_infos.size(), 1028 sizeof(CompileUnitInfo), 1029 (ComparisonFunction)SymbolContainsSymbolWithID); 1030 } 1031 1032 if (oso_idx_ptr) { 1033 if (comp_unit_info != nullptr) 1034 *oso_idx_ptr = comp_unit_info - &m_compile_unit_infos[0]; 1035 else 1036 *oso_idx_ptr = UINT32_MAX; 1037 } 1038 return comp_unit_info; 1039 } 1040 1041 static void RemoveFunctionsWithModuleNotEqualTo(const ModuleSP &module_sp, 1042 SymbolContextList &sc_list, 1043 uint32_t start_idx) { 1044 // We found functions in .o files. Not all functions in the .o files will 1045 // have made it into the final output file. The ones that did make it into 1046 // the final output file will have a section whose module matches the module 1047 // from the ObjectFile for this SymbolFile. When the modules don't match, 1048 // then we have something that was in a .o file, but doesn't map to anything 1049 // in the final executable. 1050 uint32_t i = start_idx; 1051 while (i < sc_list.GetSize()) { 1052 SymbolContext sc; 1053 sc_list.GetContextAtIndex(i, sc); 1054 if (sc.function) { 1055 const SectionSP section_sp( 1056 sc.function->GetAddressRange().GetBaseAddress().GetSection()); 1057 if (section_sp->GetModule() != module_sp) { 1058 sc_list.RemoveContextAtIndex(i); 1059 continue; 1060 } 1061 } 1062 ++i; 1063 } 1064 } 1065 1066 void SymbolFileDWARFDebugMap::FindFunctions( 1067 const Module::LookupInfo &lookup_info, 1068 const CompilerDeclContext &parent_decl_ctx, bool include_inlines, 1069 SymbolContextList &sc_list) { 1070 std::lock_guard<std::recursive_mutex> guard(GetModuleMutex()); 1071 LLDB_SCOPED_TIMERF("SymbolFileDWARFDebugMap::FindFunctions (name = %s)", 1072 lookup_info.GetLookupName().GetCString()); 1073 1074 ForEachSymbolFile([&](SymbolFileDWARF *oso_dwarf) -> bool { 1075 uint32_t sc_idx = sc_list.GetSize(); 1076 oso_dwarf->FindFunctions(lookup_info, parent_decl_ctx, include_inlines, 1077 sc_list); 1078 if (!sc_list.IsEmpty()) { 1079 RemoveFunctionsWithModuleNotEqualTo(m_objfile_sp->GetModule(), sc_list, 1080 sc_idx); 1081 } 1082 return false; 1083 }); 1084 } 1085 1086 void SymbolFileDWARFDebugMap::FindFunctions(const RegularExpression ®ex, 1087 bool include_inlines, 1088 SymbolContextList &sc_list) { 1089 std::lock_guard<std::recursive_mutex> guard(GetModuleMutex()); 1090 LLDB_SCOPED_TIMERF("SymbolFileDWARFDebugMap::FindFunctions (regex = '%s')", 1091 regex.GetText().str().c_str()); 1092 1093 ForEachSymbolFile([&](SymbolFileDWARF *oso_dwarf) -> bool { 1094 uint32_t sc_idx = sc_list.GetSize(); 1095 1096 oso_dwarf->FindFunctions(regex, include_inlines, sc_list); 1097 if (!sc_list.IsEmpty()) { 1098 RemoveFunctionsWithModuleNotEqualTo(m_objfile_sp->GetModule(), sc_list, 1099 sc_idx); 1100 } 1101 return false; 1102 }); 1103 } 1104 1105 void SymbolFileDWARFDebugMap::GetTypes(SymbolContextScope *sc_scope, 1106 lldb::TypeClass type_mask, 1107 TypeList &type_list) { 1108 std::lock_guard<std::recursive_mutex> guard(GetModuleMutex()); 1109 LLDB_SCOPED_TIMERF("SymbolFileDWARFDebugMap::GetTypes (type_mask = 0x%8.8x)", 1110 type_mask); 1111 1112 SymbolFileDWARF *oso_dwarf = nullptr; 1113 if (sc_scope) { 1114 SymbolContext sc; 1115 sc_scope->CalculateSymbolContext(&sc); 1116 1117 CompileUnitInfo *cu_info = GetCompUnitInfo(sc); 1118 if (cu_info) { 1119 oso_dwarf = GetSymbolFileByCompUnitInfo(cu_info); 1120 if (oso_dwarf) 1121 oso_dwarf->GetTypes(sc_scope, type_mask, type_list); 1122 } 1123 } else { 1124 ForEachSymbolFile([&](SymbolFileDWARF *oso_dwarf) -> bool { 1125 oso_dwarf->GetTypes(sc_scope, type_mask, type_list); 1126 return false; 1127 }); 1128 } 1129 } 1130 1131 std::vector<std::unique_ptr<lldb_private::CallEdge>> 1132 SymbolFileDWARFDebugMap::ParseCallEdgesInFunction( 1133 lldb_private::UserID func_id) { 1134 uint32_t oso_idx = GetOSOIndexFromUserID(func_id.GetID()); 1135 SymbolFileDWARF *oso_dwarf = GetSymbolFileByOSOIndex(oso_idx); 1136 if (oso_dwarf) 1137 return oso_dwarf->ParseCallEdgesInFunction(func_id); 1138 return {}; 1139 } 1140 1141 TypeSP SymbolFileDWARFDebugMap::FindDefinitionTypeForDWARFDeclContext( 1142 const DWARFDIE &die) { 1143 TypeSP type_sp; 1144 ForEachSymbolFile([&](SymbolFileDWARF *oso_dwarf) -> bool { 1145 type_sp = oso_dwarf->FindDefinitionTypeForDWARFDeclContext(die); 1146 return ((bool)type_sp); 1147 }); 1148 return type_sp; 1149 } 1150 1151 bool SymbolFileDWARFDebugMap::Supports_DW_AT_APPLE_objc_complete_type( 1152 SymbolFileDWARF *skip_dwarf_oso) { 1153 if (m_supports_DW_AT_APPLE_objc_complete_type == eLazyBoolCalculate) { 1154 m_supports_DW_AT_APPLE_objc_complete_type = eLazyBoolNo; 1155 ForEachSymbolFile([&](SymbolFileDWARF *oso_dwarf) -> bool { 1156 if (skip_dwarf_oso != oso_dwarf && 1157 oso_dwarf->Supports_DW_AT_APPLE_objc_complete_type(nullptr)) { 1158 m_supports_DW_AT_APPLE_objc_complete_type = eLazyBoolYes; 1159 return true; 1160 } 1161 return false; 1162 }); 1163 } 1164 return m_supports_DW_AT_APPLE_objc_complete_type == eLazyBoolYes; 1165 } 1166 1167 TypeSP SymbolFileDWARFDebugMap::FindCompleteObjCDefinitionTypeForDIE( 1168 const DWARFDIE &die, ConstString type_name, 1169 bool must_be_implementation) { 1170 // If we have a debug map, we will have an Objective-C symbol whose name is 1171 // the type name and whose type is eSymbolTypeObjCClass. If we can find that 1172 // symbol and find its containing parent, we can locate the .o file that will 1173 // contain the implementation definition since it will be scoped inside the 1174 // N_SO and we can then locate the SymbolFileDWARF that corresponds to that 1175 // N_SO. 1176 SymbolFileDWARF *oso_dwarf = nullptr; 1177 TypeSP type_sp; 1178 ObjectFile *module_objfile = m_objfile_sp->GetModule()->GetObjectFile(); 1179 if (module_objfile) { 1180 Symtab *symtab = module_objfile->GetSymtab(); 1181 if (symtab) { 1182 Symbol *objc_class_symbol = symtab->FindFirstSymbolWithNameAndType( 1183 type_name, eSymbolTypeObjCClass, Symtab::eDebugAny, 1184 Symtab::eVisibilityAny); 1185 if (objc_class_symbol) { 1186 // Get the N_SO symbol that contains the objective C class symbol as 1187 // this should be the .o file that contains the real definition... 1188 const Symbol *source_file_symbol = symtab->GetParent(objc_class_symbol); 1189 1190 if (source_file_symbol && 1191 source_file_symbol->GetType() == eSymbolTypeSourceFile) { 1192 const uint32_t source_file_symbol_idx = 1193 symtab->GetIndexForSymbol(source_file_symbol); 1194 if (source_file_symbol_idx != UINT32_MAX) { 1195 CompileUnitInfo *compile_unit_info = 1196 GetCompileUnitInfoForSymbolWithIndex(source_file_symbol_idx, 1197 nullptr); 1198 if (compile_unit_info) { 1199 oso_dwarf = GetSymbolFileByCompUnitInfo(compile_unit_info); 1200 if (oso_dwarf) { 1201 TypeSP type_sp(oso_dwarf->FindCompleteObjCDefinitionTypeForDIE( 1202 die, type_name, must_be_implementation)); 1203 if (type_sp) { 1204 return type_sp; 1205 } 1206 } 1207 } 1208 } 1209 } 1210 } 1211 } 1212 } 1213 1214 // Only search all .o files for the definition if we don't need the 1215 // implementation because otherwise, with a valid debug map we should have 1216 // the ObjC class symbol and the code above should have found it. 1217 if (!must_be_implementation) { 1218 TypeSP type_sp; 1219 1220 ForEachSymbolFile([&](SymbolFileDWARF *oso_dwarf) -> bool { 1221 type_sp = oso_dwarf->FindCompleteObjCDefinitionTypeForDIE( 1222 die, type_name, must_be_implementation); 1223 return (bool)type_sp; 1224 }); 1225 1226 return type_sp; 1227 } 1228 return TypeSP(); 1229 } 1230 1231 void SymbolFileDWARFDebugMap::FindTypes(const TypeQuery &query, 1232 TypeResults &results) { 1233 std::lock_guard<std::recursive_mutex> guard(GetModuleMutex()); 1234 ForEachSymbolFile([&](SymbolFileDWARF *oso_dwarf) -> bool { 1235 oso_dwarf->FindTypes(query, results); 1236 return !results.Done(query); // Keep iterating if we aren't done. 1237 }); 1238 } 1239 1240 CompilerDeclContext SymbolFileDWARFDebugMap::FindNamespace( 1241 lldb_private::ConstString name, const CompilerDeclContext &parent_decl_ctx, 1242 bool only_root_namespaces) { 1243 std::lock_guard<std::recursive_mutex> guard(GetModuleMutex()); 1244 CompilerDeclContext matching_namespace; 1245 1246 ForEachSymbolFile([&](SymbolFileDWARF *oso_dwarf) -> bool { 1247 matching_namespace = 1248 oso_dwarf->FindNamespace(name, parent_decl_ctx, only_root_namespaces); 1249 1250 return (bool)matching_namespace; 1251 }); 1252 1253 return matching_namespace; 1254 } 1255 1256 void SymbolFileDWARFDebugMap::DumpClangAST(Stream &s) { 1257 ForEachSymbolFile([&s](SymbolFileDWARF *oso_dwarf) -> bool { 1258 oso_dwarf->DumpClangAST(s); 1259 // The underlying assumption is that DumpClangAST(...) will obtain the 1260 // AST from the underlying TypeSystem and therefore we only need to do 1261 // this once and can stop after the first iteration hence we return true. 1262 return true; 1263 }); 1264 } 1265 1266 bool SymbolFileDWARFDebugMap::GetSeparateDebugInfo( 1267 lldb_private::StructuredData::Dictionary &d, bool errors_only) { 1268 StructuredData::Array separate_debug_info_files; 1269 const uint32_t cu_count = GetNumCompileUnits(); 1270 for (uint32_t cu_idx = 0; cu_idx < cu_count; ++cu_idx) { 1271 const auto &info = m_compile_unit_infos[cu_idx]; 1272 StructuredData::DictionarySP oso_data = 1273 std::make_shared<StructuredData::Dictionary>(); 1274 oso_data->AddStringItem("so_file", info.so_file.GetPath()); 1275 oso_data->AddStringItem("oso_path", info.oso_path); 1276 oso_data->AddIntegerItem("oso_mod_time", 1277 (uint32_t)llvm::sys::toTimeT(info.oso_mod_time)); 1278 1279 bool loaded_successfully = false; 1280 if (GetModuleByOSOIndex(cu_idx)) { 1281 // If we have a valid pointer to the module, we successfully 1282 // loaded the oso if there are no load errors. 1283 if (!info.oso_load_error.Fail()) { 1284 loaded_successfully = true; 1285 } 1286 } 1287 if (!loaded_successfully) { 1288 oso_data->AddStringItem("error", info.oso_load_error.AsCString()); 1289 } 1290 oso_data->AddBooleanItem("loaded", loaded_successfully); 1291 if (!errors_only || oso_data->HasKey("error")) 1292 separate_debug_info_files.AddItem(oso_data); 1293 } 1294 1295 d.AddStringItem("type", "oso"); 1296 d.AddStringItem("symfile", GetMainObjectFile()->GetFileSpec().GetPath()); 1297 d.AddItem("separate-debug-info-files", 1298 std::make_shared<StructuredData::Array>( 1299 std::move(separate_debug_info_files))); 1300 return true; 1301 } 1302 1303 lldb::CompUnitSP 1304 SymbolFileDWARFDebugMap::GetCompileUnit(SymbolFileDWARF *oso_dwarf, DWARFCompileUnit &dwarf_cu) { 1305 if (oso_dwarf) { 1306 const uint32_t cu_count = GetNumCompileUnits(); 1307 for (uint32_t cu_idx = 0; cu_idx < cu_count; ++cu_idx) { 1308 SymbolFileDWARF *oso_symfile = 1309 GetSymbolFileByCompUnitInfo(&m_compile_unit_infos[cu_idx]); 1310 if (oso_symfile == oso_dwarf) { 1311 if (m_compile_unit_infos[cu_idx].compile_units_sps.empty()) 1312 ParseCompileUnitAtIndex(cu_idx); 1313 1314 auto &id_to_index_map = m_compile_unit_infos[cu_idx].id_to_index_map; 1315 auto it = id_to_index_map.find(dwarf_cu.GetID()); 1316 if (it != id_to_index_map.end()) 1317 return m_compile_unit_infos[cu_idx] 1318 .compile_units_sps[it->getSecond()]; 1319 } 1320 } 1321 } 1322 llvm_unreachable("this shouldn't happen"); 1323 } 1324 1325 SymbolFileDWARFDebugMap::CompileUnitInfo * 1326 SymbolFileDWARFDebugMap::GetCompileUnitInfo(SymbolFileDWARF *oso_dwarf) { 1327 if (oso_dwarf) { 1328 const uint32_t cu_count = GetNumCompileUnits(); 1329 for (uint32_t cu_idx = 0; cu_idx < cu_count; ++cu_idx) { 1330 SymbolFileDWARF *oso_symfile = 1331 GetSymbolFileByCompUnitInfo(&m_compile_unit_infos[cu_idx]); 1332 if (oso_symfile == oso_dwarf) { 1333 return &m_compile_unit_infos[cu_idx]; 1334 } 1335 } 1336 } 1337 return nullptr; 1338 } 1339 1340 void SymbolFileDWARFDebugMap::SetCompileUnit(SymbolFileDWARF *oso_dwarf, 1341 const CompUnitSP &cu_sp) { 1342 if (oso_dwarf) { 1343 const uint32_t cu_count = GetNumCompileUnits(); 1344 for (uint32_t cu_idx = 0; cu_idx < cu_count; ++cu_idx) { 1345 SymbolFileDWARF *oso_symfile = 1346 GetSymbolFileByCompUnitInfo(&m_compile_unit_infos[cu_idx]); 1347 if (oso_symfile == oso_dwarf) { 1348 if (!m_compile_unit_infos[cu_idx].compile_units_sps.empty()) { 1349 assert(m_compile_unit_infos[cu_idx].compile_units_sps[0].get() == 1350 cu_sp.get()); 1351 } else { 1352 assert(cu_sp->GetID() == 0 && 1353 "Setting first compile unit but with id different than 0!"); 1354 auto &compile_units_sps = m_compile_unit_infos[cu_idx].compile_units_sps; 1355 compile_units_sps.push_back(cu_sp); 1356 m_compile_unit_infos[cu_idx].id_to_index_map.insert( 1357 {cu_sp->GetID(), compile_units_sps.size() - 1}); 1358 1359 SetCompileUnitAtIndex(cu_idx, cu_sp); 1360 } 1361 } 1362 } 1363 } 1364 } 1365 1366 CompilerDeclContext 1367 SymbolFileDWARFDebugMap::GetDeclContextForUID(lldb::user_id_t type_uid) { 1368 const uint64_t oso_idx = GetOSOIndexFromUserID(type_uid); 1369 if (SymbolFileDWARF *oso_dwarf = GetSymbolFileByOSOIndex(oso_idx)) 1370 return oso_dwarf->GetDeclContextForUID(type_uid); 1371 return {}; 1372 } 1373 1374 CompilerDeclContext 1375 SymbolFileDWARFDebugMap::GetDeclContextContainingUID(lldb::user_id_t type_uid) { 1376 const uint64_t oso_idx = GetOSOIndexFromUserID(type_uid); 1377 if (SymbolFileDWARF *oso_dwarf = GetSymbolFileByOSOIndex(oso_idx)) 1378 return oso_dwarf->GetDeclContextContainingUID(type_uid); 1379 return {}; 1380 } 1381 1382 std::vector<CompilerContext> 1383 SymbolFileDWARFDebugMap::GetCompilerContextForUID(lldb::user_id_t type_uid) { 1384 const uint64_t oso_idx = GetOSOIndexFromUserID(type_uid); 1385 if (SymbolFileDWARF *oso_dwarf = GetSymbolFileByOSOIndex(oso_idx)) 1386 return oso_dwarf->GetCompilerContextForUID(type_uid); 1387 return {}; 1388 } 1389 1390 void SymbolFileDWARFDebugMap::ParseDeclsForContext( 1391 lldb_private::CompilerDeclContext decl_ctx) { 1392 ForEachSymbolFile([&](SymbolFileDWARF *oso_dwarf) -> bool { 1393 oso_dwarf->ParseDeclsForContext(decl_ctx); 1394 return true; // Keep iterating 1395 }); 1396 } 1397 1398 bool SymbolFileDWARFDebugMap::AddOSOFileRange(CompileUnitInfo *cu_info, 1399 lldb::addr_t exe_file_addr, 1400 lldb::addr_t exe_byte_size, 1401 lldb::addr_t oso_file_addr, 1402 lldb::addr_t oso_byte_size) { 1403 const uint32_t debug_map_idx = 1404 m_debug_map.FindEntryIndexThatContains(exe_file_addr); 1405 if (debug_map_idx != UINT32_MAX) { 1406 DebugMap::Entry *debug_map_entry = 1407 m_debug_map.FindEntryThatContains(exe_file_addr); 1408 debug_map_entry->data.SetOSOFileAddress(oso_file_addr); 1409 addr_t range_size = std::min<addr_t>(exe_byte_size, oso_byte_size); 1410 if (range_size == 0) { 1411 range_size = std::max<addr_t>(exe_byte_size, oso_byte_size); 1412 if (range_size == 0) 1413 range_size = 1; 1414 } 1415 cu_info->file_range_map.Append( 1416 FileRangeMap::Entry(oso_file_addr, range_size, exe_file_addr)); 1417 return true; 1418 } 1419 return false; 1420 } 1421 1422 void SymbolFileDWARFDebugMap::FinalizeOSOFileRanges(CompileUnitInfo *cu_info) { 1423 cu_info->file_range_map.Sort(); 1424 #if defined(DEBUG_OSO_DMAP) 1425 const FileRangeMap &oso_file_range_map = cu_info->GetFileRangeMap(this); 1426 const size_t n = oso_file_range_map.GetSize(); 1427 printf("SymbolFileDWARFDebugMap::FinalizeOSOFileRanges (cu_info = %p) %s\n", 1428 cu_info, cu_info->oso_sp->module_sp->GetFileSpec().GetPath().c_str()); 1429 for (size_t i = 0; i < n; ++i) { 1430 const FileRangeMap::Entry &entry = oso_file_range_map.GetEntryRef(i); 1431 printf("oso [0x%16.16" PRIx64 " - 0x%16.16" PRIx64 1432 ") ==> exe [0x%16.16" PRIx64 " - 0x%16.16" PRIx64 ")\n", 1433 entry.GetRangeBase(), entry.GetRangeEnd(), entry.data, 1434 entry.data + entry.GetByteSize()); 1435 } 1436 #endif 1437 } 1438 1439 lldb::addr_t 1440 SymbolFileDWARFDebugMap::LinkOSOFileAddress(SymbolFileDWARF *oso_symfile, 1441 lldb::addr_t oso_file_addr) { 1442 CompileUnitInfo *cu_info = GetCompileUnitInfo(oso_symfile); 1443 if (cu_info) { 1444 const FileRangeMap::Entry *oso_range_entry = 1445 cu_info->GetFileRangeMap(this).FindEntryThatContains(oso_file_addr); 1446 if (oso_range_entry) { 1447 const DebugMap::Entry *debug_map_entry = 1448 m_debug_map.FindEntryThatContains(oso_range_entry->data); 1449 if (debug_map_entry) { 1450 const lldb::addr_t offset = 1451 oso_file_addr - oso_range_entry->GetRangeBase(); 1452 const lldb::addr_t exe_file_addr = 1453 debug_map_entry->GetRangeBase() + offset; 1454 return exe_file_addr; 1455 } 1456 } 1457 } 1458 return LLDB_INVALID_ADDRESS; 1459 } 1460 1461 bool SymbolFileDWARFDebugMap::LinkOSOAddress(Address &addr) { 1462 // Make sure this address hasn't been fixed already 1463 Module *exe_module = GetObjectFile()->GetModule().get(); 1464 Module *addr_module = addr.GetModule().get(); 1465 if (addr_module == exe_module) 1466 return true; // Address is already in terms of the main executable module 1467 1468 CompileUnitInfo *cu_info = GetCompileUnitInfo( 1469 GetSymbolFileAsSymbolFileDWARF(addr_module->GetSymbolFile())); 1470 if (cu_info) { 1471 const lldb::addr_t oso_file_addr = addr.GetFileAddress(); 1472 const FileRangeMap::Entry *oso_range_entry = 1473 cu_info->GetFileRangeMap(this).FindEntryThatContains(oso_file_addr); 1474 if (oso_range_entry) { 1475 const DebugMap::Entry *debug_map_entry = 1476 m_debug_map.FindEntryThatContains(oso_range_entry->data); 1477 if (debug_map_entry) { 1478 const lldb::addr_t offset = 1479 oso_file_addr - oso_range_entry->GetRangeBase(); 1480 const lldb::addr_t exe_file_addr = 1481 debug_map_entry->GetRangeBase() + offset; 1482 return exe_module->ResolveFileAddress(exe_file_addr, addr); 1483 } 1484 } 1485 } 1486 return true; 1487 } 1488 1489 LineTable *SymbolFileDWARFDebugMap::LinkOSOLineTable(SymbolFileDWARF *oso_dwarf, 1490 LineTable *line_table) { 1491 CompileUnitInfo *cu_info = GetCompileUnitInfo(oso_dwarf); 1492 if (cu_info) 1493 return line_table->LinkLineTable(cu_info->GetFileRangeMap(this)); 1494 return nullptr; 1495 } 1496 1497 size_t 1498 SymbolFileDWARFDebugMap::AddOSOARanges(SymbolFileDWARF *dwarf2Data, 1499 DWARFDebugAranges *debug_aranges) { 1500 size_t num_line_entries_added = 0; 1501 if (debug_aranges && dwarf2Data) { 1502 CompileUnitInfo *compile_unit_info = GetCompileUnitInfo(dwarf2Data); 1503 if (compile_unit_info) { 1504 const FileRangeMap &file_range_map = 1505 compile_unit_info->GetFileRangeMap(this); 1506 for (size_t idx = 0; idx < file_range_map.GetSize(); idx++) { 1507 const FileRangeMap::Entry *entry = file_range_map.GetEntryAtIndex(idx); 1508 if (entry) { 1509 debug_aranges->AppendRange(*dwarf2Data->GetFileIndex(), 1510 entry->GetRangeBase(), 1511 entry->GetRangeEnd()); 1512 num_line_entries_added++; 1513 } 1514 } 1515 } 1516 } 1517 return num_line_entries_added; 1518 } 1519 1520 ModuleList SymbolFileDWARFDebugMap::GetDebugInfoModules() { 1521 ModuleList oso_modules; 1522 ForEachSymbolFile([&](SymbolFileDWARF *oso_dwarf) -> bool { 1523 ObjectFile *oso_objfile = oso_dwarf->GetObjectFile(); 1524 if (oso_objfile) { 1525 ModuleSP module_sp = oso_objfile->GetModule(); 1526 if (module_sp) 1527 oso_modules.Append(module_sp); 1528 } 1529 return false; // Keep iterating 1530 }); 1531 return oso_modules; 1532 } 1533 1534 Status SymbolFileDWARFDebugMap::CalculateFrameVariableError(StackFrame &frame) { 1535 std::lock_guard<std::recursive_mutex> guard(GetModuleMutex()); 1536 1537 // We need to make sure that our PC value from the frame matches the module 1538 // for this object file since we will lookup the PC file address in the debug 1539 // map below. 1540 Address pc_addr = frame.GetFrameCodeAddress(); 1541 if (pc_addr.GetModule() == m_objfile_sp->GetModule()) { 1542 Symtab *symtab = m_objfile_sp->GetSymtab(); 1543 if (symtab) { 1544 const DebugMap::Entry *debug_map_entry = 1545 m_debug_map.FindEntryThatContains(pc_addr.GetFileAddress()); 1546 if (debug_map_entry) { 1547 Symbol *symbol = 1548 symtab->SymbolAtIndex(debug_map_entry->data.GetExeSymbolIndex()); 1549 if (symbol) { 1550 uint32_t oso_idx = 0; 1551 CompileUnitInfo *comp_unit_info = 1552 GetCompileUnitInfoForSymbolWithID(symbol->GetID(), &oso_idx); 1553 if (comp_unit_info) { 1554 Module *oso_module = GetModuleByCompUnitInfo(comp_unit_info); 1555 if (oso_module) { 1556 // Check the .o file's DWARF in case it has an error to display. 1557 SymbolFile *oso_sym_file = oso_module->GetSymbolFile(); 1558 if (oso_sym_file) 1559 return oso_sym_file->GetFrameVariableError(frame); 1560 } 1561 // If we don't have a valid OSO module here, then something went 1562 // wrong as we have a symbol for the address in the debug map, but 1563 // we weren't able to open the .o file. Display an appropriate 1564 // error 1565 if (comp_unit_info->oso_load_error.Fail()) 1566 return comp_unit_info->oso_load_error; 1567 else 1568 return Status("unable to load debug map object file \"%s\" " 1569 "exist, debug info will not be loaded", 1570 comp_unit_info->oso_path.GetCString()); 1571 } 1572 } 1573 } 1574 } 1575 } 1576 return Status(); 1577 } 1578 1579 void SymbolFileDWARFDebugMap::GetCompileOptions( 1580 std::unordered_map<lldb::CompUnitSP, lldb_private::Args> &args) { 1581 1582 ForEachSymbolFile([&](SymbolFileDWARF *oso_dwarf) -> bool { 1583 oso_dwarf->GetCompileOptions(args); 1584 return false; 1585 }); 1586 } 1587