1 //===-- Module.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 "lldb/lldb-python.h" 11 12 #include "lldb/Core/AddressResolverFileLine.h" 13 #include "lldb/Core/Error.h" 14 #include "lldb/Core/Module.h" 15 #include "lldb/Core/DataBuffer.h" 16 #include "lldb/Core/DataBufferHeap.h" 17 #include "lldb/Core/Log.h" 18 #include "lldb/Core/ModuleList.h" 19 #include "lldb/Core/ModuleSpec.h" 20 #include "lldb/Core/RegularExpression.h" 21 #include "lldb/Core/Section.h" 22 #include "lldb/Core/StreamString.h" 23 #include "lldb/Core/Timer.h" 24 #include "lldb/Host/Host.h" 25 #include "lldb/Host/Symbols.h" 26 #include "lldb/Interpreter/CommandInterpreter.h" 27 #include "lldb/Interpreter/ScriptInterpreter.h" 28 #include "lldb/lldb-private-log.h" 29 #include "lldb/Symbol/CompileUnit.h" 30 #include "lldb/Symbol/ObjectFile.h" 31 #include "lldb/Symbol/SymbolContext.h" 32 #include "lldb/Symbol/SymbolVendor.h" 33 #include "lldb/Target/CPPLanguageRuntime.h" 34 #include "lldb/Target/ObjCLanguageRuntime.h" 35 #include "lldb/Target/Process.h" 36 #include "lldb/Target/SectionLoadList.h" 37 #include "lldb/Target/Target.h" 38 #include "lldb/Symbol/SymbolFile.h" 39 40 #include "Plugins/ObjectFile/JIT/ObjectFileJIT.h" 41 42 using namespace lldb; 43 using namespace lldb_private; 44 45 // Shared pointers to modules track module lifetimes in 46 // targets and in the global module, but this collection 47 // will track all module objects that are still alive 48 typedef std::vector<Module *> ModuleCollection; 49 50 static ModuleCollection & 51 GetModuleCollection() 52 { 53 // This module collection needs to live past any module, so we could either make it a 54 // shared pointer in each module or just leak is. Since it is only an empty vector by 55 // the time all the modules have gone away, we just leak it for now. If we decide this 56 // is a big problem we can introduce a Finalize method that will tear everything down in 57 // a predictable order. 58 59 static ModuleCollection *g_module_collection = NULL; 60 if (g_module_collection == NULL) 61 g_module_collection = new ModuleCollection(); 62 63 return *g_module_collection; 64 } 65 66 Mutex * 67 Module::GetAllocationModuleCollectionMutex() 68 { 69 // NOTE: The mutex below must be leaked since the global module list in 70 // the ModuleList class will get torn at some point, and we can't know 71 // if it will tear itself down before the "g_module_collection_mutex" below 72 // will. So we leak a Mutex object below to safeguard against that 73 74 static Mutex *g_module_collection_mutex = NULL; 75 if (g_module_collection_mutex == NULL) 76 g_module_collection_mutex = new Mutex (Mutex::eMutexTypeRecursive); // NOTE: known leak 77 return g_module_collection_mutex; 78 } 79 80 size_t 81 Module::GetNumberAllocatedModules () 82 { 83 Mutex::Locker locker (GetAllocationModuleCollectionMutex()); 84 return GetModuleCollection().size(); 85 } 86 87 Module * 88 Module::GetAllocatedModuleAtIndex (size_t idx) 89 { 90 Mutex::Locker locker (GetAllocationModuleCollectionMutex()); 91 ModuleCollection &modules = GetModuleCollection(); 92 if (idx < modules.size()) 93 return modules[idx]; 94 return NULL; 95 } 96 #if 0 97 98 // These functions help us to determine if modules are still loaded, yet don't require that 99 // you have a command interpreter and can easily be called from an external debugger. 100 namespace lldb { 101 102 void 103 ClearModuleInfo (void) 104 { 105 const bool mandatory = true; 106 ModuleList::RemoveOrphanSharedModules(mandatory); 107 } 108 109 void 110 DumpModuleInfo (void) 111 { 112 Mutex::Locker locker (Module::GetAllocationModuleCollectionMutex()); 113 ModuleCollection &modules = GetModuleCollection(); 114 const size_t count = modules.size(); 115 printf ("%s: %" PRIu64 " modules:\n", __PRETTY_FUNCTION__, (uint64_t)count); 116 for (size_t i=0; i<count; ++i) 117 { 118 119 StreamString strm; 120 Module *module = modules[i]; 121 const bool in_shared_module_list = ModuleList::ModuleIsInCache (module); 122 module->GetDescription(&strm, eDescriptionLevelFull); 123 printf ("%p: shared = %i, ref_count = %3u, module = %s\n", 124 module, 125 in_shared_module_list, 126 (uint32_t)module->use_count(), 127 strm.GetString().c_str()); 128 } 129 } 130 } 131 132 #endif 133 134 Module::Module (const ModuleSpec &module_spec) : 135 m_mutex (Mutex::eMutexTypeRecursive), 136 m_mod_time (), 137 m_arch (), 138 m_uuid (), 139 m_file (), 140 m_platform_file(), 141 m_remote_install_file(), 142 m_symfile_spec (), 143 m_object_name (), 144 m_object_offset (), 145 m_object_mod_time (), 146 m_objfile_sp (), 147 m_symfile_ap (), 148 m_ast (), 149 m_source_mappings (), 150 m_sections_ap(), 151 m_did_load_objfile (false), 152 m_did_load_symbol_vendor (false), 153 m_did_parse_uuid (false), 154 m_did_init_ast (false), 155 m_is_dynamic_loader_module (false), 156 m_file_has_changed (false), 157 m_first_file_changed_log (false) 158 { 159 // Scope for locker below... 160 { 161 Mutex::Locker locker (GetAllocationModuleCollectionMutex()); 162 GetModuleCollection().push_back(this); 163 } 164 165 Log *log(lldb_private::GetLogIfAnyCategoriesSet (LIBLLDB_LOG_OBJECT|LIBLLDB_LOG_MODULES)); 166 if (log) 167 log->Printf ("%p Module::Module((%s) '%s%s%s%s')", 168 static_cast<void*>(this), 169 module_spec.GetArchitecture().GetArchitectureName(), 170 module_spec.GetFileSpec().GetPath().c_str(), 171 module_spec.GetObjectName().IsEmpty() ? "" : "(", 172 module_spec.GetObjectName().IsEmpty() ? "" : module_spec.GetObjectName().AsCString(""), 173 module_spec.GetObjectName().IsEmpty() ? "" : ")"); 174 175 // First extract all module specifications from the file using the local 176 // file path. If there are no specifications, then don't fill anything in 177 ModuleSpecList modules_specs; 178 if (ObjectFile::GetModuleSpecifications(module_spec.GetFileSpec(), 0, 0, modules_specs) == 0) 179 return; 180 181 // Now make sure that one of the module specifications matches what we just 182 // extract. We might have a module specification that specifies a file "/usr/lib/dyld" 183 // with UUID XXX, but we might have a local version of "/usr/lib/dyld" that has 184 // UUID YYY and we don't want those to match. If they don't match, just don't 185 // fill any ivars in so we don't accidentally grab the wrong file later since 186 // they don't match... 187 ModuleSpec matching_module_spec; 188 if (modules_specs.FindMatchingModuleSpec(module_spec, matching_module_spec) == 0) 189 return; 190 191 if (module_spec.GetFileSpec()) 192 m_mod_time = module_spec.GetFileSpec().GetModificationTime(); 193 else if (matching_module_spec.GetFileSpec()) 194 m_mod_time = matching_module_spec.GetFileSpec().GetModificationTime(); 195 196 // Copy the architecture from the actual spec if we got one back, else use the one that was specified 197 if (matching_module_spec.GetArchitecture().IsValid()) 198 m_arch = matching_module_spec.GetArchitecture(); 199 else if (module_spec.GetArchitecture().IsValid()) 200 m_arch = module_spec.GetArchitecture(); 201 202 // Copy the file spec over and use the specified one (if there was one) so we 203 // don't use a path that might have gotten resolved a path in 'matching_module_spec' 204 if (module_spec.GetFileSpec()) 205 m_file = module_spec.GetFileSpec(); 206 else if (matching_module_spec.GetFileSpec()) 207 m_file = matching_module_spec.GetFileSpec(); 208 209 // Copy the platform file spec over 210 if (module_spec.GetPlatformFileSpec()) 211 m_platform_file = module_spec.GetPlatformFileSpec(); 212 else if (matching_module_spec.GetPlatformFileSpec()) 213 m_platform_file = matching_module_spec.GetPlatformFileSpec(); 214 215 // Copy the symbol file spec over 216 if (module_spec.GetSymbolFileSpec()) 217 m_symfile_spec = module_spec.GetSymbolFileSpec(); 218 else if (matching_module_spec.GetSymbolFileSpec()) 219 m_symfile_spec = matching_module_spec.GetSymbolFileSpec(); 220 221 // Copy the object name over 222 if (matching_module_spec.GetObjectName()) 223 m_object_name = matching_module_spec.GetObjectName(); 224 else 225 m_object_name = module_spec.GetObjectName(); 226 227 // Always trust the object offset (file offset) and object modification 228 // time (for mod time in a BSD static archive) of from the matching 229 // module specification 230 m_object_offset = matching_module_spec.GetObjectOffset(); 231 m_object_mod_time = matching_module_spec.GetObjectModificationTime(); 232 233 } 234 235 Module::Module(const FileSpec& file_spec, 236 const ArchSpec& arch, 237 const ConstString *object_name, 238 lldb::offset_t object_offset, 239 const TimeValue *object_mod_time_ptr) : 240 m_mutex (Mutex::eMutexTypeRecursive), 241 m_mod_time (file_spec.GetModificationTime()), 242 m_arch (arch), 243 m_uuid (), 244 m_file (file_spec), 245 m_platform_file(), 246 m_remote_install_file (), 247 m_symfile_spec (), 248 m_object_name (), 249 m_object_offset (object_offset), 250 m_object_mod_time (), 251 m_objfile_sp (), 252 m_symfile_ap (), 253 m_ast (), 254 m_source_mappings (), 255 m_sections_ap(), 256 m_did_load_objfile (false), 257 m_did_load_symbol_vendor (false), 258 m_did_parse_uuid (false), 259 m_did_init_ast (false), 260 m_is_dynamic_loader_module (false), 261 m_file_has_changed (false), 262 m_first_file_changed_log (false) 263 { 264 // Scope for locker below... 265 { 266 Mutex::Locker locker (GetAllocationModuleCollectionMutex()); 267 GetModuleCollection().push_back(this); 268 } 269 270 if (object_name) 271 m_object_name = *object_name; 272 273 if (object_mod_time_ptr) 274 m_object_mod_time = *object_mod_time_ptr; 275 276 Log *log(lldb_private::GetLogIfAnyCategoriesSet (LIBLLDB_LOG_OBJECT|LIBLLDB_LOG_MODULES)); 277 if (log) 278 log->Printf ("%p Module::Module((%s) '%s%s%s%s')", 279 static_cast<void*>(this), m_arch.GetArchitectureName(), 280 m_file.GetPath().c_str(), 281 m_object_name.IsEmpty() ? "" : "(", 282 m_object_name.IsEmpty() ? "" : m_object_name.AsCString(""), 283 m_object_name.IsEmpty() ? "" : ")"); 284 } 285 286 Module::Module () : 287 m_mutex (Mutex::eMutexTypeRecursive), 288 m_mod_time (), 289 m_arch (), 290 m_uuid (), 291 m_file (), 292 m_platform_file(), 293 m_remote_install_file (), 294 m_symfile_spec (), 295 m_object_name (), 296 m_object_offset (0), 297 m_object_mod_time (), 298 m_objfile_sp (), 299 m_symfile_ap (), 300 m_ast (), 301 m_source_mappings (), 302 m_sections_ap(), 303 m_did_load_objfile (false), 304 m_did_load_symbol_vendor (false), 305 m_did_parse_uuid (false), 306 m_did_init_ast (false), 307 m_is_dynamic_loader_module (false), 308 m_file_has_changed (false), 309 m_first_file_changed_log (false) 310 { 311 Mutex::Locker locker (GetAllocationModuleCollectionMutex()); 312 GetModuleCollection().push_back(this); 313 } 314 315 Module::~Module() 316 { 317 // Lock our module down while we tear everything down to make sure 318 // we don't get any access to the module while it is being destroyed 319 Mutex::Locker locker (m_mutex); 320 // Scope for locker below... 321 { 322 Mutex::Locker locker (GetAllocationModuleCollectionMutex()); 323 ModuleCollection &modules = GetModuleCollection(); 324 ModuleCollection::iterator end = modules.end(); 325 ModuleCollection::iterator pos = std::find(modules.begin(), end, this); 326 assert (pos != end); 327 modules.erase(pos); 328 } 329 Log *log(lldb_private::GetLogIfAnyCategoriesSet (LIBLLDB_LOG_OBJECT|LIBLLDB_LOG_MODULES)); 330 if (log) 331 log->Printf ("%p Module::~Module((%s) '%s%s%s%s')", 332 static_cast<void*>(this), 333 m_arch.GetArchitectureName(), 334 m_file.GetPath().c_str(), 335 m_object_name.IsEmpty() ? "" : "(", 336 m_object_name.IsEmpty() ? "" : m_object_name.AsCString(""), 337 m_object_name.IsEmpty() ? "" : ")"); 338 // Release any auto pointers before we start tearing down our member 339 // variables since the object file and symbol files might need to make 340 // function calls back into this module object. The ordering is important 341 // here because symbol files can require the module object file. So we tear 342 // down the symbol file first, then the object file. 343 m_sections_ap.reset(); 344 m_symfile_ap.reset(); 345 m_objfile_sp.reset(); 346 } 347 348 ObjectFile * 349 Module::GetMemoryObjectFile (const lldb::ProcessSP &process_sp, lldb::addr_t header_addr, Error &error, size_t size_to_read) 350 { 351 if (m_objfile_sp) 352 { 353 error.SetErrorString ("object file already exists"); 354 } 355 else 356 { 357 Mutex::Locker locker (m_mutex); 358 if (process_sp) 359 { 360 m_did_load_objfile = true; 361 std::unique_ptr<DataBufferHeap> data_ap (new DataBufferHeap (size_to_read, 0)); 362 Error readmem_error; 363 const size_t bytes_read = process_sp->ReadMemory (header_addr, 364 data_ap->GetBytes(), 365 data_ap->GetByteSize(), 366 readmem_error); 367 if (bytes_read == size_to_read) 368 { 369 DataBufferSP data_sp(data_ap.release()); 370 m_objfile_sp = ObjectFile::FindPlugin(shared_from_this(), process_sp, header_addr, data_sp); 371 if (m_objfile_sp) 372 { 373 StreamString s; 374 s.Printf("0x%16.16" PRIx64, header_addr); 375 m_object_name.SetCString (s.GetData()); 376 377 // Once we get the object file, update our module with the object file's 378 // architecture since it might differ in vendor/os if some parts were 379 // unknown. 380 m_objfile_sp->GetArchitecture (m_arch); 381 } 382 else 383 { 384 error.SetErrorString ("unable to find suitable object file plug-in"); 385 } 386 } 387 else 388 { 389 error.SetErrorStringWithFormat ("unable to read header from memory: %s", readmem_error.AsCString()); 390 } 391 } 392 else 393 { 394 error.SetErrorString ("invalid process"); 395 } 396 } 397 return m_objfile_sp.get(); 398 } 399 400 401 const lldb_private::UUID& 402 Module::GetUUID() 403 { 404 Mutex::Locker locker (m_mutex); 405 if (m_did_parse_uuid == false) 406 { 407 ObjectFile * obj_file = GetObjectFile (); 408 409 if (obj_file != NULL) 410 { 411 obj_file->GetUUID(&m_uuid); 412 m_did_parse_uuid = true; 413 } 414 } 415 return m_uuid; 416 } 417 418 ClangASTContext & 419 Module::GetClangASTContext () 420 { 421 Mutex::Locker locker (m_mutex); 422 if (m_did_init_ast == false) 423 { 424 ObjectFile * objfile = GetObjectFile(); 425 ArchSpec object_arch; 426 if (objfile && objfile->GetArchitecture(object_arch)) 427 { 428 m_did_init_ast = true; 429 430 // LLVM wants this to be set to iOS or MacOSX; if we're working on 431 // a bare-boards type image, change the triple for llvm's benefit. 432 if (object_arch.GetTriple().getVendor() == llvm::Triple::Apple 433 && object_arch.GetTriple().getOS() == llvm::Triple::UnknownOS) 434 { 435 if (object_arch.GetTriple().getArch() == llvm::Triple::arm || 436 object_arch.GetTriple().getArch() == llvm::Triple::aarch64 || 437 object_arch.GetTriple().getArch() == llvm::Triple::thumb) 438 { 439 object_arch.GetTriple().setOS(llvm::Triple::IOS); 440 } 441 else 442 { 443 object_arch.GetTriple().setOS(llvm::Triple::MacOSX); 444 } 445 } 446 m_ast.SetArchitecture (object_arch); 447 } 448 } 449 return m_ast; 450 } 451 452 void 453 Module::ParseAllDebugSymbols() 454 { 455 Mutex::Locker locker (m_mutex); 456 size_t num_comp_units = GetNumCompileUnits(); 457 if (num_comp_units == 0) 458 return; 459 460 SymbolContext sc; 461 sc.module_sp = shared_from_this(); 462 SymbolVendor *symbols = GetSymbolVendor (); 463 464 for (size_t cu_idx = 0; cu_idx < num_comp_units; cu_idx++) 465 { 466 sc.comp_unit = symbols->GetCompileUnitAtIndex(cu_idx).get(); 467 if (sc.comp_unit) 468 { 469 sc.function = NULL; 470 symbols->ParseVariablesForContext(sc); 471 472 symbols->ParseCompileUnitFunctions(sc); 473 474 for (size_t func_idx = 0; (sc.function = sc.comp_unit->GetFunctionAtIndex(func_idx).get()) != NULL; ++func_idx) 475 { 476 symbols->ParseFunctionBlocks(sc); 477 478 // Parse the variables for this function and all its blocks 479 symbols->ParseVariablesForContext(sc); 480 } 481 482 483 // Parse all types for this compile unit 484 sc.function = NULL; 485 symbols->ParseTypes(sc); 486 } 487 } 488 } 489 490 void 491 Module::CalculateSymbolContext(SymbolContext* sc) 492 { 493 sc->module_sp = shared_from_this(); 494 } 495 496 ModuleSP 497 Module::CalculateSymbolContextModule () 498 { 499 return shared_from_this(); 500 } 501 502 void 503 Module::DumpSymbolContext(Stream *s) 504 { 505 s->Printf(", Module{%p}", static_cast<void*>(this)); 506 } 507 508 size_t 509 Module::GetNumCompileUnits() 510 { 511 Mutex::Locker locker (m_mutex); 512 Timer scoped_timer(__PRETTY_FUNCTION__, 513 "Module::GetNumCompileUnits (module = %p)", 514 static_cast<void*>(this)); 515 SymbolVendor *symbols = GetSymbolVendor (); 516 if (symbols) 517 return symbols->GetNumCompileUnits(); 518 return 0; 519 } 520 521 CompUnitSP 522 Module::GetCompileUnitAtIndex (size_t index) 523 { 524 Mutex::Locker locker (m_mutex); 525 size_t num_comp_units = GetNumCompileUnits (); 526 CompUnitSP cu_sp; 527 528 if (index < num_comp_units) 529 { 530 SymbolVendor *symbols = GetSymbolVendor (); 531 if (symbols) 532 cu_sp = symbols->GetCompileUnitAtIndex(index); 533 } 534 return cu_sp; 535 } 536 537 bool 538 Module::ResolveFileAddress (lldb::addr_t vm_addr, Address& so_addr) 539 { 540 Mutex::Locker locker (m_mutex); 541 Timer scoped_timer(__PRETTY_FUNCTION__, "Module::ResolveFileAddress (vm_addr = 0x%" PRIx64 ")", vm_addr); 542 SectionList *section_list = GetSectionList(); 543 if (section_list) 544 return so_addr.ResolveAddressUsingFileSections(vm_addr, section_list); 545 return false; 546 } 547 548 uint32_t 549 Module::ResolveSymbolContextForAddress (const Address& so_addr, uint32_t resolve_scope, SymbolContext& sc, 550 bool resolve_tail_call_address) 551 { 552 Mutex::Locker locker (m_mutex); 553 uint32_t resolved_flags = 0; 554 555 // Clear the result symbol context in case we don't find anything, but don't clear the target 556 sc.Clear(false); 557 558 // Get the section from the section/offset address. 559 SectionSP section_sp (so_addr.GetSection()); 560 561 // Make sure the section matches this module before we try and match anything 562 if (section_sp && section_sp->GetModule().get() == this) 563 { 564 // If the section offset based address resolved itself, then this 565 // is the right module. 566 sc.module_sp = shared_from_this(); 567 resolved_flags |= eSymbolContextModule; 568 569 SymbolVendor* sym_vendor = GetSymbolVendor(); 570 if (!sym_vendor) 571 return resolved_flags; 572 573 // Resolve the compile unit, function, block, line table or line 574 // entry if requested. 575 if (resolve_scope & eSymbolContextCompUnit || 576 resolve_scope & eSymbolContextFunction || 577 resolve_scope & eSymbolContextBlock || 578 resolve_scope & eSymbolContextLineEntry ) 579 { 580 resolved_flags |= sym_vendor->ResolveSymbolContext (so_addr, resolve_scope, sc); 581 } 582 583 // Resolve the symbol if requested, but don't re-look it up if we've already found it. 584 if (resolve_scope & eSymbolContextSymbol && !(resolved_flags & eSymbolContextSymbol)) 585 { 586 Symtab *symtab = sym_vendor->GetSymtab(); 587 if (symtab && so_addr.IsSectionOffset()) 588 { 589 sc.symbol = symtab->FindSymbolContainingFileAddress(so_addr.GetFileAddress()); 590 if (!sc.symbol && 591 resolve_scope & eSymbolContextFunction && !(resolved_flags & eSymbolContextFunction)) 592 { 593 bool verify_unique = false; // No need to check again since ResolveSymbolContext failed to find a symbol at this address. 594 if (ObjectFile *obj_file = sc.module_sp->GetObjectFile()) 595 sc.symbol = obj_file->ResolveSymbolForAddress(so_addr, verify_unique); 596 } 597 598 if (sc.symbol) 599 { 600 if (sc.symbol->IsSynthetic()) 601 { 602 // We have a synthetic symbol so lets check if the object file 603 // from the symbol file in the symbol vendor is different than 604 // the object file for the module, and if so search its symbol 605 // table to see if we can come up with a better symbol. For example 606 // dSYM files on MacOSX have an unstripped symbol table inside of 607 // them. 608 ObjectFile *symtab_objfile = symtab->GetObjectFile(); 609 if (symtab_objfile && symtab_objfile->IsStripped()) 610 { 611 SymbolFile *symfile = sym_vendor->GetSymbolFile(); 612 if (symfile) 613 { 614 ObjectFile *symfile_objfile = symfile->GetObjectFile(); 615 if (symfile_objfile != symtab_objfile) 616 { 617 Symtab *symfile_symtab = symfile_objfile->GetSymtab(); 618 if (symfile_symtab) 619 { 620 Symbol *symbol = symfile_symtab->FindSymbolContainingFileAddress(so_addr.GetFileAddress()); 621 if (symbol && !symbol->IsSynthetic()) 622 { 623 sc.symbol = symbol; 624 } 625 } 626 } 627 } 628 } 629 } 630 resolved_flags |= eSymbolContextSymbol; 631 } 632 } 633 } 634 635 // For function symbols, so_addr may be off by one. This is a convention consistent 636 // with FDE row indices in eh_frame sections, but requires extra logic here to permit 637 // symbol lookup for disassembly and unwind. 638 if (resolve_scope & eSymbolContextSymbol && !(resolved_flags & eSymbolContextSymbol) && 639 resolve_tail_call_address && so_addr.IsSectionOffset()) 640 { 641 Address previous_addr = so_addr; 642 previous_addr.Slide(-1); 643 644 bool do_resolve_tail_call_address = false; // prevent recursion 645 const uint32_t flags = ResolveSymbolContextForAddress(previous_addr, resolve_scope, sc, 646 do_resolve_tail_call_address); 647 if (flags & eSymbolContextSymbol) 648 { 649 AddressRange addr_range; 650 if (sc.GetAddressRange (eSymbolContextFunction | eSymbolContextSymbol, 0, false, addr_range)) 651 { 652 if (addr_range.GetBaseAddress().GetSection() == so_addr.GetSection()) 653 { 654 // If the requested address is one past the address range of a function (i.e. a tail call), 655 // or the decremented address is the start of a function (i.e. some forms of trampoline), 656 // indicate that the symbol has been resolved. 657 if (so_addr.GetOffset() == addr_range.GetBaseAddress().GetOffset() || 658 so_addr.GetOffset() == addr_range.GetBaseAddress().GetOffset() + addr_range.GetByteSize()) 659 { 660 resolved_flags |= flags; 661 } 662 } 663 else 664 { 665 sc.symbol = nullptr; // Don't trust the symbol if the sections didn't match. 666 } 667 } 668 } 669 } 670 } 671 return resolved_flags; 672 } 673 674 uint32_t 675 Module::ResolveSymbolContextForFilePath 676 ( 677 const char *file_path, 678 uint32_t line, 679 bool check_inlines, 680 uint32_t resolve_scope, 681 SymbolContextList& sc_list 682 ) 683 { 684 FileSpec file_spec(file_path, false); 685 return ResolveSymbolContextsForFileSpec (file_spec, line, check_inlines, resolve_scope, sc_list); 686 } 687 688 uint32_t 689 Module::ResolveSymbolContextsForFileSpec (const FileSpec &file_spec, uint32_t line, bool check_inlines, uint32_t resolve_scope, SymbolContextList& sc_list) 690 { 691 Mutex::Locker locker (m_mutex); 692 Timer scoped_timer(__PRETTY_FUNCTION__, 693 "Module::ResolveSymbolContextForFilePath (%s:%u, check_inlines = %s, resolve_scope = 0x%8.8x)", 694 file_spec.GetPath().c_str(), 695 line, 696 check_inlines ? "yes" : "no", 697 resolve_scope); 698 699 const uint32_t initial_count = sc_list.GetSize(); 700 701 SymbolVendor *symbols = GetSymbolVendor (); 702 if (symbols) 703 symbols->ResolveSymbolContext (file_spec, line, check_inlines, resolve_scope, sc_list); 704 705 return sc_list.GetSize() - initial_count; 706 } 707 708 709 size_t 710 Module::FindGlobalVariables (const ConstString &name, 711 const ClangNamespaceDecl *namespace_decl, 712 bool append, 713 size_t max_matches, 714 VariableList& variables) 715 { 716 SymbolVendor *symbols = GetSymbolVendor (); 717 if (symbols) 718 return symbols->FindGlobalVariables(name, namespace_decl, append, max_matches, variables); 719 return 0; 720 } 721 722 size_t 723 Module::FindGlobalVariables (const RegularExpression& regex, 724 bool append, 725 size_t max_matches, 726 VariableList& variables) 727 { 728 SymbolVendor *symbols = GetSymbolVendor (); 729 if (symbols) 730 return symbols->FindGlobalVariables(regex, append, max_matches, variables); 731 return 0; 732 } 733 734 size_t 735 Module::FindCompileUnits (const FileSpec &path, 736 bool append, 737 SymbolContextList &sc_list) 738 { 739 if (!append) 740 sc_list.Clear(); 741 742 const size_t start_size = sc_list.GetSize(); 743 const size_t num_compile_units = GetNumCompileUnits(); 744 SymbolContext sc; 745 sc.module_sp = shared_from_this(); 746 const bool compare_directory = (bool)path.GetDirectory(); 747 for (size_t i=0; i<num_compile_units; ++i) 748 { 749 sc.comp_unit = GetCompileUnitAtIndex(i).get(); 750 if (sc.comp_unit) 751 { 752 if (FileSpec::Equal (*sc.comp_unit, path, compare_directory)) 753 sc_list.Append(sc); 754 } 755 } 756 return sc_list.GetSize() - start_size; 757 } 758 759 size_t 760 Module::FindFunctions (const ConstString &name, 761 const ClangNamespaceDecl *namespace_decl, 762 uint32_t name_type_mask, 763 bool include_symbols, 764 bool include_inlines, 765 bool append, 766 SymbolContextList& sc_list) 767 { 768 if (!append) 769 sc_list.Clear(); 770 771 const size_t old_size = sc_list.GetSize(); 772 773 // Find all the functions (not symbols, but debug information functions... 774 SymbolVendor *symbols = GetSymbolVendor (); 775 776 if (name_type_mask & eFunctionNameTypeAuto) 777 { 778 ConstString lookup_name; 779 uint32_t lookup_name_type_mask = 0; 780 bool match_name_after_lookup = false; 781 Module::PrepareForFunctionNameLookup (name, 782 name_type_mask, 783 lookup_name, 784 lookup_name_type_mask, 785 match_name_after_lookup); 786 787 if (symbols) 788 { 789 symbols->FindFunctions(lookup_name, 790 namespace_decl, 791 lookup_name_type_mask, 792 include_inlines, 793 append, 794 sc_list); 795 796 // Now check our symbol table for symbols that are code symbols if requested 797 if (include_symbols) 798 { 799 Symtab *symtab = symbols->GetSymtab(); 800 if (symtab) 801 symtab->FindFunctionSymbols(lookup_name, lookup_name_type_mask, sc_list); 802 } 803 } 804 805 if (match_name_after_lookup) 806 { 807 SymbolContext sc; 808 size_t i = old_size; 809 while (i<sc_list.GetSize()) 810 { 811 if (sc_list.GetContextAtIndex(i, sc)) 812 { 813 const char *func_name = sc.GetFunctionName().GetCString(); 814 if (func_name && strstr (func_name, name.GetCString()) == NULL) 815 { 816 // Remove the current context 817 sc_list.RemoveContextAtIndex(i); 818 // Don't increment i and continue in the loop 819 continue; 820 } 821 } 822 ++i; 823 } 824 } 825 } 826 else 827 { 828 if (symbols) 829 { 830 symbols->FindFunctions(name, namespace_decl, name_type_mask, include_inlines, append, sc_list); 831 832 // Now check our symbol table for symbols that are code symbols if requested 833 if (include_symbols) 834 { 835 Symtab *symtab = symbols->GetSymtab(); 836 if (symtab) 837 symtab->FindFunctionSymbols(name, name_type_mask, sc_list); 838 } 839 } 840 } 841 842 return sc_list.GetSize() - old_size; 843 } 844 845 size_t 846 Module::FindFunctions (const RegularExpression& regex, 847 bool include_symbols, 848 bool include_inlines, 849 bool append, 850 SymbolContextList& sc_list) 851 { 852 if (!append) 853 sc_list.Clear(); 854 855 const size_t start_size = sc_list.GetSize(); 856 857 SymbolVendor *symbols = GetSymbolVendor (); 858 if (symbols) 859 { 860 symbols->FindFunctions(regex, include_inlines, append, sc_list); 861 862 // Now check our symbol table for symbols that are code symbols if requested 863 if (include_symbols) 864 { 865 Symtab *symtab = symbols->GetSymtab(); 866 if (symtab) 867 { 868 std::vector<uint32_t> symbol_indexes; 869 symtab->AppendSymbolIndexesMatchingRegExAndType (regex, eSymbolTypeAny, Symtab::eDebugAny, Symtab::eVisibilityAny, symbol_indexes); 870 const size_t num_matches = symbol_indexes.size(); 871 if (num_matches) 872 { 873 SymbolContext sc(this); 874 const size_t end_functions_added_index = sc_list.GetSize(); 875 size_t num_functions_added_to_sc_list = end_functions_added_index - start_size; 876 if (num_functions_added_to_sc_list == 0) 877 { 878 // No functions were added, just symbols, so we can just append them 879 for (size_t i=0; i<num_matches; ++i) 880 { 881 sc.symbol = symtab->SymbolAtIndex(symbol_indexes[i]); 882 SymbolType sym_type = sc.symbol->GetType(); 883 if (sc.symbol && (sym_type == eSymbolTypeCode || 884 sym_type == eSymbolTypeResolver)) 885 sc_list.Append(sc); 886 } 887 } 888 else 889 { 890 typedef std::map<lldb::addr_t, uint32_t> FileAddrToIndexMap; 891 FileAddrToIndexMap file_addr_to_index; 892 for (size_t i=start_size; i<end_functions_added_index; ++i) 893 { 894 const SymbolContext &sc = sc_list[i]; 895 if (sc.block) 896 continue; 897 file_addr_to_index[sc.function->GetAddressRange().GetBaseAddress().GetFileAddress()] = i; 898 } 899 900 FileAddrToIndexMap::const_iterator end = file_addr_to_index.end(); 901 // Functions were added so we need to merge symbols into any 902 // existing function symbol contexts 903 for (size_t i=start_size; i<num_matches; ++i) 904 { 905 sc.symbol = symtab->SymbolAtIndex(symbol_indexes[i]); 906 SymbolType sym_type = sc.symbol->GetType(); 907 if (sc.symbol && (sym_type == eSymbolTypeCode || 908 sym_type == eSymbolTypeResolver)) 909 { 910 FileAddrToIndexMap::const_iterator pos = file_addr_to_index.find(sc.symbol->GetAddress().GetFileAddress()); 911 if (pos == end) 912 sc_list.Append(sc); 913 else 914 sc_list[pos->second].symbol = sc.symbol; 915 } 916 } 917 } 918 } 919 } 920 } 921 } 922 return sc_list.GetSize() - start_size; 923 } 924 925 void 926 Module::FindAddressesForLine (const lldb::TargetSP target_sp, 927 const FileSpec &file, uint32_t line, 928 Function *function, 929 std::vector<Address> &output_local, std::vector<Address> &output_extern) 930 { 931 SearchFilterByModule filter(target_sp, m_file); 932 AddressResolverFileLine resolver(file, line, true); 933 resolver.ResolveAddress (filter); 934 935 for (size_t n=0;n<resolver.GetNumberOfAddresses();n++) 936 { 937 Address addr = resolver.GetAddressRangeAtIndex(n).GetBaseAddress(); 938 Function *f = addr.CalculateSymbolContextFunction(); 939 if (f && f == function) 940 output_local.push_back (addr); 941 else 942 output_extern.push_back (addr); 943 } 944 } 945 946 size_t 947 Module::FindTypes_Impl (const SymbolContext& sc, 948 const ConstString &name, 949 const ClangNamespaceDecl *namespace_decl, 950 bool append, 951 size_t max_matches, 952 TypeList& types) 953 { 954 Timer scoped_timer(__PRETTY_FUNCTION__, __PRETTY_FUNCTION__); 955 if (sc.module_sp.get() == NULL || sc.module_sp.get() == this) 956 { 957 SymbolVendor *symbols = GetSymbolVendor (); 958 if (symbols) 959 return symbols->FindTypes(sc, name, namespace_decl, append, max_matches, types); 960 } 961 return 0; 962 } 963 964 size_t 965 Module::FindTypesInNamespace (const SymbolContext& sc, 966 const ConstString &type_name, 967 const ClangNamespaceDecl *namespace_decl, 968 size_t max_matches, 969 TypeList& type_list) 970 { 971 const bool append = true; 972 return FindTypes_Impl(sc, type_name, namespace_decl, append, max_matches, type_list); 973 } 974 975 lldb::TypeSP 976 Module::FindFirstType (const SymbolContext& sc, 977 const ConstString &name, 978 bool exact_match) 979 { 980 TypeList type_list; 981 const size_t num_matches = FindTypes (sc, name, exact_match, 1, type_list); 982 if (num_matches) 983 return type_list.GetTypeAtIndex(0); 984 return TypeSP(); 985 } 986 987 988 size_t 989 Module::FindTypes (const SymbolContext& sc, 990 const ConstString &name, 991 bool exact_match, 992 size_t max_matches, 993 TypeList& types) 994 { 995 size_t num_matches = 0; 996 const char *type_name_cstr = name.GetCString(); 997 std::string type_scope; 998 std::string type_basename; 999 const bool append = true; 1000 TypeClass type_class = eTypeClassAny; 1001 if (Type::GetTypeScopeAndBasename (type_name_cstr, type_scope, type_basename, type_class)) 1002 { 1003 // Check if "name" starts with "::" which means the qualified type starts 1004 // from the root namespace and implies and exact match. The typenames we 1005 // get back from clang do not start with "::" so we need to strip this off 1006 // in order to get the qualified names to match 1007 1008 if (type_scope.size() >= 2 && type_scope[0] == ':' && type_scope[1] == ':') 1009 { 1010 type_scope.erase(0,2); 1011 exact_match = true; 1012 } 1013 ConstString type_basename_const_str (type_basename.c_str()); 1014 if (FindTypes_Impl(sc, type_basename_const_str, NULL, append, max_matches, types)) 1015 { 1016 types.RemoveMismatchedTypes (type_scope, type_basename, type_class, exact_match); 1017 num_matches = types.GetSize(); 1018 } 1019 } 1020 else 1021 { 1022 // The type is not in a namespace/class scope, just search for it by basename 1023 if (type_class != eTypeClassAny) 1024 { 1025 // The "type_name_cstr" will have been modified if we have a valid type class 1026 // prefix (like "struct", "class", "union", "typedef" etc). 1027 FindTypes_Impl(sc, ConstString(type_name_cstr), NULL, append, max_matches, types); 1028 types.RemoveMismatchedTypes (type_class); 1029 num_matches = types.GetSize(); 1030 } 1031 else 1032 { 1033 num_matches = FindTypes_Impl(sc, name, NULL, append, max_matches, types); 1034 } 1035 } 1036 1037 return num_matches; 1038 1039 } 1040 1041 SymbolVendor* 1042 Module::GetSymbolVendor (bool can_create, lldb_private::Stream *feedback_strm) 1043 { 1044 Mutex::Locker locker (m_mutex); 1045 if (m_did_load_symbol_vendor == false && can_create) 1046 { 1047 ObjectFile *obj_file = GetObjectFile (); 1048 if (obj_file != NULL) 1049 { 1050 Timer scoped_timer(__PRETTY_FUNCTION__, __PRETTY_FUNCTION__); 1051 m_symfile_ap.reset(SymbolVendor::FindPlugin(shared_from_this(), feedback_strm)); 1052 m_did_load_symbol_vendor = true; 1053 } 1054 } 1055 return m_symfile_ap.get(); 1056 } 1057 1058 void 1059 Module::SetFileSpecAndObjectName (const FileSpec &file, const ConstString &object_name) 1060 { 1061 // Container objects whose paths do not specify a file directly can call 1062 // this function to correct the file and object names. 1063 m_file = file; 1064 m_mod_time = file.GetModificationTime(); 1065 m_object_name = object_name; 1066 } 1067 1068 const ArchSpec& 1069 Module::GetArchitecture () const 1070 { 1071 return m_arch; 1072 } 1073 1074 std::string 1075 Module::GetSpecificationDescription () const 1076 { 1077 std::string spec(GetFileSpec().GetPath()); 1078 if (m_object_name) 1079 { 1080 spec += '('; 1081 spec += m_object_name.GetCString(); 1082 spec += ')'; 1083 } 1084 return spec; 1085 } 1086 1087 void 1088 Module::GetDescription (Stream *s, lldb::DescriptionLevel level) 1089 { 1090 Mutex::Locker locker (m_mutex); 1091 1092 if (level >= eDescriptionLevelFull) 1093 { 1094 if (m_arch.IsValid()) 1095 s->Printf("(%s) ", m_arch.GetArchitectureName()); 1096 } 1097 1098 if (level == eDescriptionLevelBrief) 1099 { 1100 const char *filename = m_file.GetFilename().GetCString(); 1101 if (filename) 1102 s->PutCString (filename); 1103 } 1104 else 1105 { 1106 char path[PATH_MAX]; 1107 if (m_file.GetPath(path, sizeof(path))) 1108 s->PutCString(path); 1109 } 1110 1111 const char *object_name = m_object_name.GetCString(); 1112 if (object_name) 1113 s->Printf("(%s)", object_name); 1114 } 1115 1116 void 1117 Module::ReportError (const char *format, ...) 1118 { 1119 if (format && format[0]) 1120 { 1121 StreamString strm; 1122 strm.PutCString("error: "); 1123 GetDescription(&strm, lldb::eDescriptionLevelBrief); 1124 strm.PutChar (' '); 1125 va_list args; 1126 va_start (args, format); 1127 strm.PrintfVarArg(format, args); 1128 va_end (args); 1129 1130 const int format_len = strlen(format); 1131 if (format_len > 0) 1132 { 1133 const char last_char = format[format_len-1]; 1134 if (last_char != '\n' || last_char != '\r') 1135 strm.EOL(); 1136 } 1137 Host::SystemLog (Host::eSystemLogError, "%s", strm.GetString().c_str()); 1138 1139 } 1140 } 1141 1142 bool 1143 Module::FileHasChanged () const 1144 { 1145 if (m_file_has_changed == false) 1146 m_file_has_changed = (m_file.GetModificationTime() != m_mod_time); 1147 return m_file_has_changed; 1148 } 1149 1150 void 1151 Module::ReportErrorIfModifyDetected (const char *format, ...) 1152 { 1153 if (m_first_file_changed_log == false) 1154 { 1155 if (FileHasChanged ()) 1156 { 1157 m_first_file_changed_log = true; 1158 if (format) 1159 { 1160 StreamString strm; 1161 strm.PutCString("error: the object file "); 1162 GetDescription(&strm, lldb::eDescriptionLevelFull); 1163 strm.PutCString (" has been modified\n"); 1164 1165 va_list args; 1166 va_start (args, format); 1167 strm.PrintfVarArg(format, args); 1168 va_end (args); 1169 1170 const int format_len = strlen(format); 1171 if (format_len > 0) 1172 { 1173 const char last_char = format[format_len-1]; 1174 if (last_char != '\n' || last_char != '\r') 1175 strm.EOL(); 1176 } 1177 strm.PutCString("The debug session should be aborted as the original debug information has been overwritten.\n"); 1178 Host::SystemLog (Host::eSystemLogError, "%s", strm.GetString().c_str()); 1179 } 1180 } 1181 } 1182 } 1183 1184 void 1185 Module::ReportWarning (const char *format, ...) 1186 { 1187 if (format && format[0]) 1188 { 1189 StreamString strm; 1190 strm.PutCString("warning: "); 1191 GetDescription(&strm, lldb::eDescriptionLevelFull); 1192 strm.PutChar (' '); 1193 1194 va_list args; 1195 va_start (args, format); 1196 strm.PrintfVarArg(format, args); 1197 va_end (args); 1198 1199 const int format_len = strlen(format); 1200 if (format_len > 0) 1201 { 1202 const char last_char = format[format_len-1]; 1203 if (last_char != '\n' || last_char != '\r') 1204 strm.EOL(); 1205 } 1206 Host::SystemLog (Host::eSystemLogWarning, "%s", strm.GetString().c_str()); 1207 } 1208 } 1209 1210 void 1211 Module::LogMessage (Log *log, const char *format, ...) 1212 { 1213 if (log) 1214 { 1215 StreamString log_message; 1216 GetDescription(&log_message, lldb::eDescriptionLevelFull); 1217 log_message.PutCString (": "); 1218 va_list args; 1219 va_start (args, format); 1220 log_message.PrintfVarArg (format, args); 1221 va_end (args); 1222 log->PutCString(log_message.GetString().c_str()); 1223 } 1224 } 1225 1226 void 1227 Module::LogMessageVerboseBacktrace (Log *log, const char *format, ...) 1228 { 1229 if (log) 1230 { 1231 StreamString log_message; 1232 GetDescription(&log_message, lldb::eDescriptionLevelFull); 1233 log_message.PutCString (": "); 1234 va_list args; 1235 va_start (args, format); 1236 log_message.PrintfVarArg (format, args); 1237 va_end (args); 1238 if (log->GetVerbose()) 1239 Host::Backtrace (log_message, 1024); 1240 log->PutCString(log_message.GetString().c_str()); 1241 } 1242 } 1243 1244 void 1245 Module::Dump(Stream *s) 1246 { 1247 Mutex::Locker locker (m_mutex); 1248 //s->Printf("%.*p: ", (int)sizeof(void*) * 2, this); 1249 s->Indent(); 1250 s->Printf("Module %s%s%s%s\n", 1251 m_file.GetPath().c_str(), 1252 m_object_name ? "(" : "", 1253 m_object_name ? m_object_name.GetCString() : "", 1254 m_object_name ? ")" : ""); 1255 1256 s->IndentMore(); 1257 1258 ObjectFile *objfile = GetObjectFile (); 1259 if (objfile) 1260 objfile->Dump(s); 1261 1262 SymbolVendor *symbols = GetSymbolVendor (); 1263 if (symbols) 1264 symbols->Dump(s); 1265 1266 s->IndentLess(); 1267 } 1268 1269 1270 TypeList* 1271 Module::GetTypeList () 1272 { 1273 SymbolVendor *symbols = GetSymbolVendor (); 1274 if (symbols) 1275 return &symbols->GetTypeList(); 1276 return NULL; 1277 } 1278 1279 const ConstString & 1280 Module::GetObjectName() const 1281 { 1282 return m_object_name; 1283 } 1284 1285 ObjectFile * 1286 Module::GetObjectFile() 1287 { 1288 Mutex::Locker locker (m_mutex); 1289 if (m_did_load_objfile == false) 1290 { 1291 Timer scoped_timer(__PRETTY_FUNCTION__, 1292 "Module::GetObjectFile () module = %s", GetFileSpec().GetFilename().AsCString("")); 1293 DataBufferSP data_sp; 1294 lldb::offset_t data_offset = 0; 1295 const lldb::offset_t file_size = m_file.GetByteSize(); 1296 if (file_size > m_object_offset) 1297 { 1298 m_did_load_objfile = true; 1299 m_objfile_sp = ObjectFile::FindPlugin (shared_from_this(), 1300 &m_file, 1301 m_object_offset, 1302 file_size - m_object_offset, 1303 data_sp, 1304 data_offset); 1305 if (m_objfile_sp) 1306 { 1307 // Once we get the object file, update our module with the object file's 1308 // architecture since it might differ in vendor/os if some parts were 1309 // unknown. 1310 m_objfile_sp->GetArchitecture (m_arch); 1311 } 1312 else 1313 { 1314 ReportError ("failed to load objfile for %s", GetFileSpec().GetPath().c_str()); 1315 } 1316 } 1317 } 1318 return m_objfile_sp.get(); 1319 } 1320 1321 SectionList * 1322 Module::GetSectionList() 1323 { 1324 // Populate m_unified_sections_ap with sections from objfile. 1325 if (m_sections_ap.get() == NULL) 1326 { 1327 ObjectFile *obj_file = GetObjectFile(); 1328 if (obj_file) 1329 obj_file->CreateSections(*GetUnifiedSectionList()); 1330 } 1331 return m_sections_ap.get(); 1332 } 1333 1334 void 1335 Module::SectionFileAddressesChanged () 1336 { 1337 ObjectFile *obj_file = GetObjectFile (); 1338 if (obj_file) 1339 obj_file->SectionFileAddressesChanged (); 1340 SymbolVendor* sym_vendor = GetSymbolVendor(); 1341 if (sym_vendor) 1342 sym_vendor->SectionFileAddressesChanged (); 1343 } 1344 1345 SectionList * 1346 Module::GetUnifiedSectionList() 1347 { 1348 // Populate m_unified_sections_ap with sections from objfile. 1349 if (m_sections_ap.get() == NULL) 1350 m_sections_ap.reset(new SectionList()); 1351 return m_sections_ap.get(); 1352 } 1353 1354 const Symbol * 1355 Module::FindFirstSymbolWithNameAndType (const ConstString &name, SymbolType symbol_type) 1356 { 1357 Timer scoped_timer(__PRETTY_FUNCTION__, 1358 "Module::FindFirstSymbolWithNameAndType (name = %s, type = %i)", 1359 name.AsCString(), 1360 symbol_type); 1361 SymbolVendor* sym_vendor = GetSymbolVendor(); 1362 if (sym_vendor) 1363 { 1364 Symtab *symtab = sym_vendor->GetSymtab(); 1365 if (symtab) 1366 return symtab->FindFirstSymbolWithNameAndType (name, symbol_type, Symtab::eDebugAny, Symtab::eVisibilityAny); 1367 } 1368 return NULL; 1369 } 1370 void 1371 Module::SymbolIndicesToSymbolContextList (Symtab *symtab, std::vector<uint32_t> &symbol_indexes, SymbolContextList &sc_list) 1372 { 1373 // No need to protect this call using m_mutex all other method calls are 1374 // already thread safe. 1375 1376 size_t num_indices = symbol_indexes.size(); 1377 if (num_indices > 0) 1378 { 1379 SymbolContext sc; 1380 CalculateSymbolContext (&sc); 1381 for (size_t i = 0; i < num_indices; i++) 1382 { 1383 sc.symbol = symtab->SymbolAtIndex (symbol_indexes[i]); 1384 if (sc.symbol) 1385 sc_list.Append (sc); 1386 } 1387 } 1388 } 1389 1390 size_t 1391 Module::FindFunctionSymbols (const ConstString &name, 1392 uint32_t name_type_mask, 1393 SymbolContextList& sc_list) 1394 { 1395 Timer scoped_timer(__PRETTY_FUNCTION__, 1396 "Module::FindSymbolsFunctions (name = %s, mask = 0x%8.8x)", 1397 name.AsCString(), 1398 name_type_mask); 1399 SymbolVendor* sym_vendor = GetSymbolVendor(); 1400 if (sym_vendor) 1401 { 1402 Symtab *symtab = sym_vendor->GetSymtab(); 1403 if (symtab) 1404 return symtab->FindFunctionSymbols (name, name_type_mask, sc_list); 1405 } 1406 return 0; 1407 } 1408 1409 size_t 1410 Module::FindSymbolsWithNameAndType (const ConstString &name, SymbolType symbol_type, SymbolContextList &sc_list) 1411 { 1412 // No need to protect this call using m_mutex all other method calls are 1413 // already thread safe. 1414 1415 1416 Timer scoped_timer(__PRETTY_FUNCTION__, 1417 "Module::FindSymbolsWithNameAndType (name = %s, type = %i)", 1418 name.AsCString(), 1419 symbol_type); 1420 const size_t initial_size = sc_list.GetSize(); 1421 SymbolVendor* sym_vendor = GetSymbolVendor(); 1422 if (sym_vendor) 1423 { 1424 Symtab *symtab = sym_vendor->GetSymtab(); 1425 if (symtab) 1426 { 1427 std::vector<uint32_t> symbol_indexes; 1428 symtab->FindAllSymbolsWithNameAndType (name, symbol_type, symbol_indexes); 1429 SymbolIndicesToSymbolContextList (symtab, symbol_indexes, sc_list); 1430 } 1431 } 1432 return sc_list.GetSize() - initial_size; 1433 } 1434 1435 size_t 1436 Module::FindSymbolsMatchingRegExAndType (const RegularExpression ®ex, SymbolType symbol_type, SymbolContextList &sc_list) 1437 { 1438 // No need to protect this call using m_mutex all other method calls are 1439 // already thread safe. 1440 1441 Timer scoped_timer(__PRETTY_FUNCTION__, 1442 "Module::FindSymbolsMatchingRegExAndType (regex = %s, type = %i)", 1443 regex.GetText(), 1444 symbol_type); 1445 const size_t initial_size = sc_list.GetSize(); 1446 SymbolVendor* sym_vendor = GetSymbolVendor(); 1447 if (sym_vendor) 1448 { 1449 Symtab *symtab = sym_vendor->GetSymtab(); 1450 if (symtab) 1451 { 1452 std::vector<uint32_t> symbol_indexes; 1453 symtab->FindAllSymbolsMatchingRexExAndType (regex, symbol_type, Symtab::eDebugAny, Symtab::eVisibilityAny, symbol_indexes); 1454 SymbolIndicesToSymbolContextList (symtab, symbol_indexes, sc_list); 1455 } 1456 } 1457 return sc_list.GetSize() - initial_size; 1458 } 1459 1460 void 1461 Module::SetSymbolFileFileSpec (const FileSpec &file) 1462 { 1463 // Remove any sections in the unified section list that come from the current symbol vendor. 1464 if (m_symfile_ap) 1465 { 1466 SectionList *section_list = GetSectionList(); 1467 SymbolFile *symbol_file = m_symfile_ap->GetSymbolFile(); 1468 if (section_list && symbol_file) 1469 { 1470 ObjectFile *obj_file = symbol_file->GetObjectFile(); 1471 // Make sure we have an object file and that the symbol vendor's objfile isn't 1472 // the same as the module's objfile before we remove any sections for it... 1473 if (obj_file && obj_file != m_objfile_sp.get()) 1474 { 1475 size_t num_sections = section_list->GetNumSections (0); 1476 for (size_t idx = num_sections; idx > 0; --idx) 1477 { 1478 lldb::SectionSP section_sp (section_list->GetSectionAtIndex (idx - 1)); 1479 if (section_sp->GetObjectFile() == obj_file) 1480 { 1481 section_list->DeleteSection (idx - 1); 1482 } 1483 } 1484 } 1485 } 1486 } 1487 1488 m_symfile_spec = file; 1489 m_symfile_ap.reset(); 1490 m_did_load_symbol_vendor = false; 1491 } 1492 1493 bool 1494 Module::IsExecutable () 1495 { 1496 if (GetObjectFile() == NULL) 1497 return false; 1498 else 1499 return GetObjectFile()->IsExecutable(); 1500 } 1501 1502 bool 1503 Module::IsLoadedInTarget (Target *target) 1504 { 1505 ObjectFile *obj_file = GetObjectFile(); 1506 if (obj_file) 1507 { 1508 SectionList *sections = GetSectionList(); 1509 if (sections != NULL) 1510 { 1511 size_t num_sections = sections->GetSize(); 1512 for (size_t sect_idx = 0; sect_idx < num_sections; sect_idx++) 1513 { 1514 SectionSP section_sp = sections->GetSectionAtIndex(sect_idx); 1515 if (section_sp->GetLoadBaseAddress(target) != LLDB_INVALID_ADDRESS) 1516 { 1517 return true; 1518 } 1519 } 1520 } 1521 } 1522 return false; 1523 } 1524 1525 bool 1526 Module::LoadScriptingResourceInTarget (Target *target, Error& error, Stream* feedback_stream) 1527 { 1528 if (!target) 1529 { 1530 error.SetErrorString("invalid destination Target"); 1531 return false; 1532 } 1533 1534 LoadScriptFromSymFile should_load = target->TargetProperties::GetLoadScriptFromSymbolFile(); 1535 1536 if (should_load == eLoadScriptFromSymFileFalse) 1537 return false; 1538 1539 Debugger &debugger = target->GetDebugger(); 1540 const ScriptLanguage script_language = debugger.GetScriptLanguage(); 1541 if (script_language != eScriptLanguageNone) 1542 { 1543 1544 PlatformSP platform_sp(target->GetPlatform()); 1545 1546 if (!platform_sp) 1547 { 1548 error.SetErrorString("invalid Platform"); 1549 return false; 1550 } 1551 1552 FileSpecList file_specs = platform_sp->LocateExecutableScriptingResources (target, 1553 *this, 1554 feedback_stream); 1555 1556 1557 const uint32_t num_specs = file_specs.GetSize(); 1558 if (num_specs) 1559 { 1560 ScriptInterpreter *script_interpreter = debugger.GetCommandInterpreter().GetScriptInterpreter(); 1561 if (script_interpreter) 1562 { 1563 for (uint32_t i=0; i<num_specs; ++i) 1564 { 1565 FileSpec scripting_fspec (file_specs.GetFileSpecAtIndex(i)); 1566 if (scripting_fspec && scripting_fspec.Exists()) 1567 { 1568 if (should_load == eLoadScriptFromSymFileWarn) 1569 { 1570 if (feedback_stream) 1571 feedback_stream->Printf("warning: '%s' contains a debug script. To run this script in " 1572 "this debug session:\n\n command script import \"%s\"\n\n" 1573 "To run all discovered debug scripts in this session:\n\n" 1574 " settings set target.load-script-from-symbol-file true\n", 1575 GetFileSpec().GetFileNameStrippingExtension().GetCString(), 1576 scripting_fspec.GetPath().c_str()); 1577 return false; 1578 } 1579 StreamString scripting_stream; 1580 scripting_fspec.Dump(&scripting_stream); 1581 const bool can_reload = true; 1582 const bool init_lldb_globals = false; 1583 bool did_load = script_interpreter->LoadScriptingModule(scripting_stream.GetData(), 1584 can_reload, 1585 init_lldb_globals, 1586 error); 1587 if (!did_load) 1588 return false; 1589 } 1590 } 1591 } 1592 else 1593 { 1594 error.SetErrorString("invalid ScriptInterpreter"); 1595 return false; 1596 } 1597 } 1598 } 1599 return true; 1600 } 1601 1602 bool 1603 Module::SetArchitecture (const ArchSpec &new_arch) 1604 { 1605 if (!m_arch.IsValid()) 1606 { 1607 m_arch = new_arch; 1608 return true; 1609 } 1610 return m_arch.IsExactMatch(new_arch); 1611 } 1612 1613 bool 1614 Module::SetLoadAddress (Target &target, lldb::addr_t value, bool value_is_offset, bool &changed) 1615 { 1616 ObjectFile *object_file = GetObjectFile(); 1617 if (object_file) 1618 { 1619 changed = object_file->SetLoadAddress(target, value, value_is_offset); 1620 return true; 1621 } 1622 else 1623 { 1624 changed = false; 1625 } 1626 return false; 1627 } 1628 1629 1630 bool 1631 Module::MatchesModuleSpec (const ModuleSpec &module_ref) 1632 { 1633 const UUID &uuid = module_ref.GetUUID(); 1634 1635 if (uuid.IsValid()) 1636 { 1637 // If the UUID matches, then nothing more needs to match... 1638 if (uuid == GetUUID()) 1639 return true; 1640 else 1641 return false; 1642 } 1643 1644 const FileSpec &file_spec = module_ref.GetFileSpec(); 1645 if (file_spec) 1646 { 1647 if (!FileSpec::Equal (file_spec, m_file, (bool)file_spec.GetDirectory())) 1648 return false; 1649 } 1650 1651 const FileSpec &platform_file_spec = module_ref.GetPlatformFileSpec(); 1652 if (platform_file_spec) 1653 { 1654 if (!FileSpec::Equal (platform_file_spec, GetPlatformFileSpec (), (bool)platform_file_spec.GetDirectory())) 1655 return false; 1656 } 1657 1658 const ArchSpec &arch = module_ref.GetArchitecture(); 1659 if (arch.IsValid()) 1660 { 1661 if (!m_arch.IsCompatibleMatch(arch)) 1662 return false; 1663 } 1664 1665 const ConstString &object_name = module_ref.GetObjectName(); 1666 if (object_name) 1667 { 1668 if (object_name != GetObjectName()) 1669 return false; 1670 } 1671 return true; 1672 } 1673 1674 bool 1675 Module::FindSourceFile (const FileSpec &orig_spec, FileSpec &new_spec) const 1676 { 1677 Mutex::Locker locker (m_mutex); 1678 return m_source_mappings.FindFile (orig_spec, new_spec); 1679 } 1680 1681 bool 1682 Module::RemapSourceFile (const char *path, std::string &new_path) const 1683 { 1684 Mutex::Locker locker (m_mutex); 1685 return m_source_mappings.RemapPath(path, new_path); 1686 } 1687 1688 uint32_t 1689 Module::GetVersion (uint32_t *versions, uint32_t num_versions) 1690 { 1691 ObjectFile *obj_file = GetObjectFile(); 1692 if (obj_file) 1693 return obj_file->GetVersion (versions, num_versions); 1694 1695 if (versions && num_versions) 1696 { 1697 for (uint32_t i=0; i<num_versions; ++i) 1698 versions[i] = LLDB_INVALID_MODULE_VERSION; 1699 } 1700 return 0; 1701 } 1702 1703 void 1704 Module::PrepareForFunctionNameLookup (const ConstString &name, 1705 uint32_t name_type_mask, 1706 ConstString &lookup_name, 1707 uint32_t &lookup_name_type_mask, 1708 bool &match_name_after_lookup) 1709 { 1710 const char *name_cstr = name.GetCString(); 1711 lookup_name_type_mask = eFunctionNameTypeNone; 1712 match_name_after_lookup = false; 1713 1714 llvm::StringRef basename; 1715 llvm::StringRef context; 1716 1717 if (name_type_mask & eFunctionNameTypeAuto) 1718 { 1719 if (CPPLanguageRuntime::IsCPPMangledName (name_cstr)) 1720 lookup_name_type_mask = eFunctionNameTypeFull; 1721 else if (ObjCLanguageRuntime::IsPossibleObjCMethodName (name_cstr)) 1722 lookup_name_type_mask = eFunctionNameTypeFull; 1723 else 1724 { 1725 if (ObjCLanguageRuntime::IsPossibleObjCSelector(name_cstr)) 1726 lookup_name_type_mask |= eFunctionNameTypeSelector; 1727 1728 CPPLanguageRuntime::MethodName cpp_method (name); 1729 basename = cpp_method.GetBasename(); 1730 if (basename.empty()) 1731 { 1732 if (CPPLanguageRuntime::ExtractContextAndIdentifier (name_cstr, context, basename)) 1733 lookup_name_type_mask |= (eFunctionNameTypeMethod | eFunctionNameTypeBase); 1734 else 1735 lookup_name_type_mask = eFunctionNameTypeFull; 1736 } 1737 else 1738 { 1739 lookup_name_type_mask |= (eFunctionNameTypeMethod | eFunctionNameTypeBase); 1740 } 1741 } 1742 } 1743 else 1744 { 1745 lookup_name_type_mask = name_type_mask; 1746 if (lookup_name_type_mask & eFunctionNameTypeMethod || name_type_mask & eFunctionNameTypeBase) 1747 { 1748 // If they've asked for a CPP method or function name and it can't be that, we don't 1749 // even need to search for CPP methods or names. 1750 CPPLanguageRuntime::MethodName cpp_method (name); 1751 if (cpp_method.IsValid()) 1752 { 1753 basename = cpp_method.GetBasename(); 1754 1755 if (!cpp_method.GetQualifiers().empty()) 1756 { 1757 // There is a "const" or other qualifier following the end of the function parens, 1758 // this can't be a eFunctionNameTypeBase 1759 lookup_name_type_mask &= ~(eFunctionNameTypeBase); 1760 if (lookup_name_type_mask == eFunctionNameTypeNone) 1761 return; 1762 } 1763 } 1764 else 1765 { 1766 // If the CPP method parser didn't manage to chop this up, try to fill in the base name if we can. 1767 // If a::b::c is passed in, we need to just look up "c", and then we'll filter the result later. 1768 CPPLanguageRuntime::ExtractContextAndIdentifier (name_cstr, context, basename); 1769 } 1770 } 1771 1772 if (lookup_name_type_mask & eFunctionNameTypeSelector) 1773 { 1774 if (!ObjCLanguageRuntime::IsPossibleObjCSelector(name_cstr)) 1775 { 1776 lookup_name_type_mask &= ~(eFunctionNameTypeSelector); 1777 if (lookup_name_type_mask == eFunctionNameTypeNone) 1778 return; 1779 } 1780 } 1781 } 1782 1783 if (!basename.empty()) 1784 { 1785 // The name supplied was a partial C++ path like "a::count". In this case we want to do a 1786 // lookup on the basename "count" and then make sure any matching results contain "a::count" 1787 // so that it would match "b::a::count" and "a::count". This is why we set "match_name_after_lookup" 1788 // to true 1789 lookup_name.SetString(basename); 1790 match_name_after_lookup = true; 1791 } 1792 else 1793 { 1794 // The name is already correct, just use the exact name as supplied, and we won't need 1795 // to check if any matches contain "name" 1796 lookup_name = name; 1797 match_name_after_lookup = false; 1798 } 1799 } 1800 1801 ModuleSP 1802 Module::CreateJITModule (const lldb::ObjectFileJITDelegateSP &delegate_sp) 1803 { 1804 if (delegate_sp) 1805 { 1806 // Must create a module and place it into a shared pointer before 1807 // we can create an object file since it has a std::weak_ptr back 1808 // to the module, so we need to control the creation carefully in 1809 // this static function 1810 ModuleSP module_sp(new Module()); 1811 module_sp->m_objfile_sp.reset (new ObjectFileJIT (module_sp, delegate_sp)); 1812 if (module_sp->m_objfile_sp) 1813 { 1814 // Once we get the object file, update our module with the object file's 1815 // architecture since it might differ in vendor/os if some parts were 1816 // unknown. 1817 module_sp->m_objfile_sp->GetArchitecture (module_sp->m_arch); 1818 } 1819 return module_sp; 1820 } 1821 return ModuleSP(); 1822 } 1823 1824