1 //===-- SymbolContext.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/Symbol/SymbolContext.h" 11 12 #include "lldb/Core/Log.h" 13 #include "lldb/Core/Module.h" 14 #include "lldb/Core/ModuleSpec.h" 15 #include "lldb/Host/Host.h" 16 #include "lldb/Host/StringConvert.h" 17 #include "lldb/Symbol/Block.h" 18 #include "lldb/Symbol/ClangASTContext.h" 19 #include "lldb/Symbol/CompileUnit.h" 20 #include "lldb/Symbol/ObjectFile.h" 21 #include "lldb/Symbol/Symbol.h" 22 #include "lldb/Symbol/SymbolFile.h" 23 #include "lldb/Symbol/SymbolVendor.h" 24 #include "lldb/Symbol/Variable.h" 25 #include "lldb/Target/Target.h" 26 27 using namespace lldb; 28 using namespace lldb_private; 29 30 SymbolContext::SymbolContext() : 31 target_sp (), 32 module_sp (), 33 comp_unit (nullptr), 34 function (nullptr), 35 block (nullptr), 36 line_entry (), 37 symbol (nullptr), 38 variable (nullptr) 39 { 40 } 41 42 SymbolContext::SymbolContext(const ModuleSP& m, CompileUnit *cu, Function *f, Block *b, LineEntry *le, Symbol *s) : 43 target_sp (), 44 module_sp (m), 45 comp_unit (cu), 46 function (f), 47 block (b), 48 line_entry (), 49 symbol (s), 50 variable (nullptr) 51 { 52 if (le) 53 line_entry = *le; 54 } 55 56 SymbolContext::SymbolContext(const TargetSP &t, const ModuleSP& m, CompileUnit *cu, Function *f, Block *b, LineEntry *le, Symbol *s) : 57 target_sp (t), 58 module_sp (m), 59 comp_unit (cu), 60 function (f), 61 block (b), 62 line_entry (), 63 symbol (s), 64 variable (nullptr) 65 { 66 if (le) 67 line_entry = *le; 68 } 69 70 SymbolContext::SymbolContext(const SymbolContext& rhs) : 71 target_sp (rhs.target_sp), 72 module_sp (rhs.module_sp), 73 comp_unit (rhs.comp_unit), 74 function (rhs.function), 75 block (rhs.block), 76 line_entry (rhs.line_entry), 77 symbol (rhs.symbol), 78 variable (rhs.variable) 79 { 80 } 81 82 83 SymbolContext::SymbolContext (SymbolContextScope *sc_scope) : 84 target_sp (), 85 module_sp (), 86 comp_unit (nullptr), 87 function (nullptr), 88 block (nullptr), 89 line_entry (), 90 symbol (nullptr), 91 variable (nullptr) 92 { 93 sc_scope->CalculateSymbolContext (this); 94 } 95 96 SymbolContext::~SymbolContext () 97 { 98 } 99 100 const SymbolContext& 101 SymbolContext::operator= (const SymbolContext& rhs) 102 { 103 if (this != &rhs) 104 { 105 target_sp = rhs.target_sp; 106 module_sp = rhs.module_sp; 107 comp_unit = rhs.comp_unit; 108 function = rhs.function; 109 block = rhs.block; 110 line_entry = rhs.line_entry; 111 symbol = rhs.symbol; 112 variable = rhs.variable; 113 } 114 return *this; 115 } 116 117 void 118 SymbolContext::Clear(bool clear_target) 119 { 120 if (clear_target) 121 target_sp.reset(); 122 module_sp.reset(); 123 comp_unit = nullptr; 124 function = nullptr; 125 block = nullptr; 126 line_entry.Clear(); 127 symbol = nullptr; 128 variable = nullptr; 129 } 130 131 bool 132 SymbolContext::DumpStopContext ( 133 Stream *s, 134 ExecutionContextScope *exe_scope, 135 const Address &addr, 136 bool show_fullpaths, 137 bool show_module, 138 bool show_inlined_frames, 139 bool show_function_arguments, 140 bool show_function_name 141 ) const 142 { 143 bool dumped_something = false; 144 if (show_module && module_sp) 145 { 146 if (show_fullpaths) 147 *s << module_sp->GetFileSpec(); 148 else 149 *s << module_sp->GetFileSpec().GetFilename(); 150 s->PutChar('`'); 151 dumped_something = true; 152 } 153 154 if (function != nullptr) 155 { 156 SymbolContext inline_parent_sc; 157 Address inline_parent_addr; 158 if (show_function_name == false) 159 { 160 s->Printf("<"); 161 dumped_something = true; 162 } 163 else 164 { 165 ConstString name; 166 if (show_function_arguments == false) 167 name = function->GetNameNoArguments(); 168 if (!name) 169 name = function->GetName(); 170 if (name) 171 name.Dump(s); 172 } 173 174 if (addr.IsValid()) 175 { 176 const addr_t function_offset = addr.GetOffset() - function->GetAddressRange().GetBaseAddress().GetOffset(); 177 if (show_function_name == false) 178 { 179 // Print +offset even if offset is 0 180 dumped_something = true; 181 s->Printf("+%" PRIu64 ">", function_offset); 182 } 183 else if (function_offset) 184 { 185 dumped_something = true; 186 s->Printf(" + %" PRIu64, function_offset); 187 } 188 } 189 190 if (GetParentOfInlinedScope (addr, inline_parent_sc, inline_parent_addr)) 191 { 192 dumped_something = true; 193 Block *inlined_block = block->GetContainingInlinedBlock(); 194 const InlineFunctionInfo* inlined_block_info = inlined_block->GetInlinedFunctionInfo(); 195 s->Printf (" [inlined] %s", inlined_block_info->GetName(function->GetLanguage()).GetCString()); 196 197 lldb_private::AddressRange block_range; 198 if (inlined_block->GetRangeContainingAddress(addr, block_range)) 199 { 200 const addr_t inlined_function_offset = addr.GetOffset() - block_range.GetBaseAddress().GetOffset(); 201 if (inlined_function_offset) 202 { 203 s->Printf(" + %" PRIu64, inlined_function_offset); 204 } 205 } 206 const Declaration &call_site = inlined_block_info->GetCallSite(); 207 if (call_site.IsValid()) 208 { 209 s->PutCString(" at "); 210 call_site.DumpStopContext (s, show_fullpaths); 211 } 212 if (show_inlined_frames) 213 { 214 s->EOL(); 215 s->Indent(); 216 const bool show_function_name = true; 217 return inline_parent_sc.DumpStopContext (s, exe_scope, inline_parent_addr, show_fullpaths, show_module, show_inlined_frames, show_function_arguments, show_function_name); 218 } 219 } 220 else 221 { 222 if (line_entry.IsValid()) 223 { 224 dumped_something = true; 225 s->PutCString(" at "); 226 if (line_entry.DumpStopContext(s, show_fullpaths)) 227 dumped_something = true; 228 } 229 } 230 } 231 else if (symbol != nullptr) 232 { 233 if (show_function_name == false) 234 { 235 s->Printf("<"); 236 dumped_something = true; 237 } 238 else if (symbol->GetName()) 239 { 240 dumped_something = true; 241 if (symbol->GetType() == eSymbolTypeTrampoline) 242 s->PutCString("symbol stub for: "); 243 symbol->GetName().Dump(s); 244 } 245 246 if (addr.IsValid() && symbol->ValueIsAddress()) 247 { 248 const addr_t symbol_offset = addr.GetOffset() - symbol->GetAddressRef().GetOffset(); 249 if (show_function_name == false) 250 { 251 // Print +offset even if offset is 0 252 dumped_something = true; 253 s->Printf("+%" PRIu64 ">", symbol_offset); 254 } 255 else if (symbol_offset) 256 { 257 dumped_something = true; 258 s->Printf(" + %" PRIu64, symbol_offset); 259 } 260 } 261 } 262 else if (addr.IsValid()) 263 { 264 addr.Dump(s, exe_scope, Address::DumpStyleModuleWithFileAddress); 265 dumped_something = true; 266 } 267 return dumped_something; 268 } 269 270 void 271 SymbolContext::GetDescription(Stream *s, lldb::DescriptionLevel level, Target *target) const 272 { 273 if (module_sp) 274 { 275 s->Indent(" Module: file = \""); 276 module_sp->GetFileSpec().Dump(s); 277 *s << '"'; 278 if (module_sp->GetArchitecture().IsValid()) 279 s->Printf (", arch = \"%s\"", module_sp->GetArchitecture().GetArchitectureName()); 280 s->EOL(); 281 } 282 283 if (comp_unit != nullptr) 284 { 285 s->Indent("CompileUnit: "); 286 comp_unit->GetDescription (s, level); 287 s->EOL(); 288 } 289 290 if (function != nullptr) 291 { 292 s->Indent(" Function: "); 293 function->GetDescription (s, level, target); 294 s->EOL(); 295 296 Type *func_type = function->GetType(); 297 if (func_type) 298 { 299 s->Indent(" FuncType: "); 300 func_type->GetDescription (s, level, false); 301 s->EOL(); 302 } 303 } 304 305 if (block != nullptr) 306 { 307 std::vector<Block *> blocks; 308 blocks.push_back (block); 309 Block *parent_block = block->GetParent(); 310 311 while (parent_block) 312 { 313 blocks.push_back (parent_block); 314 parent_block = parent_block->GetParent(); 315 } 316 std::vector<Block *>::reverse_iterator pos; 317 std::vector<Block *>::reverse_iterator begin = blocks.rbegin(); 318 std::vector<Block *>::reverse_iterator end = blocks.rend(); 319 for (pos = begin; pos != end; ++pos) 320 { 321 if (pos == begin) 322 s->Indent(" Blocks: "); 323 else 324 s->Indent(" "); 325 (*pos)->GetDescription(s, function, level, target); 326 s->EOL(); 327 } 328 } 329 330 if (line_entry.IsValid()) 331 { 332 s->Indent(" LineEntry: "); 333 line_entry.GetDescription (s, level, comp_unit, target, false); 334 s->EOL(); 335 } 336 337 if (symbol != nullptr) 338 { 339 s->Indent(" Symbol: "); 340 symbol->GetDescription(s, level, target); 341 s->EOL(); 342 } 343 344 if (variable != nullptr) 345 { 346 s->Indent(" Variable: "); 347 348 s->Printf("id = {0x%8.8" PRIx64 "}, ", variable->GetID()); 349 350 switch (variable->GetScope()) 351 { 352 case eValueTypeVariableGlobal: 353 s->PutCString("kind = global, "); 354 break; 355 356 case eValueTypeVariableStatic: 357 s->PutCString("kind = static, "); 358 break; 359 360 case eValueTypeVariableArgument: 361 s->PutCString("kind = argument, "); 362 break; 363 364 case eValueTypeVariableLocal: 365 s->PutCString("kind = local, "); 366 break; 367 368 default: 369 break; 370 } 371 372 s->Printf ("name = \"%s\"\n", variable->GetName().GetCString()); 373 } 374 } 375 376 uint32_t 377 SymbolContext::GetResolvedMask () const 378 { 379 uint32_t resolved_mask = 0; 380 if (target_sp) resolved_mask |= eSymbolContextTarget; 381 if (module_sp) resolved_mask |= eSymbolContextModule; 382 if (comp_unit) resolved_mask |= eSymbolContextCompUnit; 383 if (function) resolved_mask |= eSymbolContextFunction; 384 if (block) resolved_mask |= eSymbolContextBlock; 385 if (line_entry.IsValid()) resolved_mask |= eSymbolContextLineEntry; 386 if (symbol) resolved_mask |= eSymbolContextSymbol; 387 if (variable) resolved_mask |= eSymbolContextVariable; 388 return resolved_mask; 389 } 390 391 void 392 SymbolContext::Dump(Stream *s, Target *target) const 393 { 394 *s << this << ": "; 395 s->Indent(); 396 s->PutCString("SymbolContext"); 397 s->IndentMore(); 398 s->EOL(); 399 s->IndentMore(); 400 s->Indent(); 401 *s << "Module = " << module_sp.get() << ' '; 402 if (module_sp) 403 module_sp->GetFileSpec().Dump(s); 404 s->EOL(); 405 s->Indent(); 406 *s << "CompileUnit = " << comp_unit; 407 if (comp_unit != nullptr) 408 *s << " {0x" << comp_unit->GetID() << "} " << *(static_cast<FileSpec*> (comp_unit)); 409 s->EOL(); 410 s->Indent(); 411 *s << "Function = " << function; 412 if (function != nullptr) 413 { 414 *s << " {0x" << function->GetID() << "} " << function->GetType()->GetName() << ", address-range = "; 415 function->GetAddressRange().Dump(s, target, Address::DumpStyleLoadAddress, Address::DumpStyleModuleWithFileAddress); 416 s->EOL(); 417 s->Indent(); 418 Type* func_type = function->GetType(); 419 if (func_type) 420 { 421 *s << " Type = "; 422 func_type->Dump (s, false); 423 } 424 } 425 s->EOL(); 426 s->Indent(); 427 *s << "Block = " << block; 428 if (block != nullptr) 429 *s << " {0x" << block->GetID() << '}'; 430 // Dump the block and pass it a negative depth to we print all the parent blocks 431 //if (block != NULL) 432 // block->Dump(s, function->GetFileAddress(), INT_MIN); 433 s->EOL(); 434 s->Indent(); 435 *s << "LineEntry = "; 436 line_entry.Dump (s, target, true, Address::DumpStyleLoadAddress, Address::DumpStyleModuleWithFileAddress, true); 437 s->EOL(); 438 s->Indent(); 439 *s << "Symbol = " << symbol; 440 if (symbol != nullptr && symbol->GetMangled()) 441 *s << ' ' << symbol->GetName().AsCString(); 442 s->EOL(); 443 *s << "Variable = " << variable; 444 if (variable != nullptr) 445 { 446 *s << " {0x" << variable->GetID() << "} " << variable->GetType()->GetName(); 447 s->EOL(); 448 } 449 s->IndentLess(); 450 s->IndentLess(); 451 } 452 453 bool 454 lldb_private::operator== (const SymbolContext& lhs, const SymbolContext& rhs) 455 { 456 return lhs.function == rhs.function 457 && lhs.symbol == rhs.symbol 458 && lhs.module_sp.get() == rhs.module_sp.get() 459 && lhs.comp_unit == rhs.comp_unit 460 && lhs.target_sp.get() == rhs.target_sp.get() 461 && LineEntry::Compare(lhs.line_entry, rhs.line_entry) == 0 462 && lhs.variable == rhs.variable; 463 } 464 465 bool 466 lldb_private::operator!= (const SymbolContext& lhs, const SymbolContext& rhs) 467 { 468 return lhs.function != rhs.function 469 || lhs.symbol != rhs.symbol 470 || lhs.module_sp.get() != rhs.module_sp.get() 471 || lhs.comp_unit != rhs.comp_unit 472 || lhs.target_sp.get() != rhs.target_sp.get() 473 || LineEntry::Compare(lhs.line_entry, rhs.line_entry) != 0 474 || lhs.variable != rhs.variable; 475 } 476 477 bool 478 SymbolContext::GetAddressRange (uint32_t scope, 479 uint32_t range_idx, 480 bool use_inline_block_range, 481 AddressRange &range) const 482 { 483 if ((scope & eSymbolContextLineEntry) && line_entry.IsValid()) 484 { 485 range = line_entry.range; 486 return true; 487 } 488 489 if ((scope & eSymbolContextBlock) && (block != nullptr)) 490 { 491 if (use_inline_block_range) 492 { 493 Block *inline_block = block->GetContainingInlinedBlock(); 494 if (inline_block) 495 return inline_block->GetRangeAtIndex (range_idx, range); 496 } 497 else 498 { 499 return block->GetRangeAtIndex (range_idx, range); 500 } 501 } 502 503 if ((scope & eSymbolContextFunction) && (function != nullptr)) 504 { 505 if (range_idx == 0) 506 { 507 range = function->GetAddressRange(); 508 return true; 509 } 510 } 511 512 if ((scope & eSymbolContextSymbol) && (symbol != nullptr)) 513 { 514 if (range_idx == 0) 515 { 516 if (symbol->ValueIsAddress()) 517 { 518 range.GetBaseAddress() = symbol->GetAddressRef(); 519 range.SetByteSize (symbol->GetByteSize()); 520 return true; 521 } 522 } 523 } 524 range.Clear(); 525 return false; 526 } 527 528 bool 529 SymbolContext::GetParentOfInlinedScope (const Address &curr_frame_pc, 530 SymbolContext &next_frame_sc, 531 Address &next_frame_pc) const 532 { 533 next_frame_sc.Clear(false); 534 next_frame_pc.Clear(); 535 536 if (block) 537 { 538 //const addr_t curr_frame_file_addr = curr_frame_pc.GetFileAddress(); 539 540 // In order to get the parent of an inlined function we first need to 541 // see if we are in an inlined block as "this->block" could be an 542 // inlined block, or a parent of "block" could be. So lets check if 543 // this block or one of this blocks parents is an inlined function. 544 Block *curr_inlined_block = block->GetContainingInlinedBlock(); 545 if (curr_inlined_block) 546 { 547 // "this->block" is contained in an inline function block, so to 548 // get the scope above the inlined block, we get the parent of the 549 // inlined block itself 550 Block *next_frame_block = curr_inlined_block->GetParent(); 551 // Now calculate the symbol context of the containing block 552 next_frame_block->CalculateSymbolContext (&next_frame_sc); 553 554 // If we get here we weren't able to find the return line entry using the nesting of the blocks and 555 // the line table. So just use the call site info from our inlined block. 556 557 AddressRange range; 558 if (curr_inlined_block->GetRangeContainingAddress (curr_frame_pc, range)) 559 { 560 // To see there this new frame block it, we need to look at the 561 // call site information from 562 const InlineFunctionInfo* curr_inlined_block_inlined_info = curr_inlined_block->GetInlinedFunctionInfo(); 563 next_frame_pc = range.GetBaseAddress(); 564 next_frame_sc.line_entry.range.GetBaseAddress() = next_frame_pc; 565 next_frame_sc.line_entry.file = curr_inlined_block_inlined_info->GetCallSite().GetFile(); 566 next_frame_sc.line_entry.line = curr_inlined_block_inlined_info->GetCallSite().GetLine(); 567 next_frame_sc.line_entry.column = curr_inlined_block_inlined_info->GetCallSite().GetColumn(); 568 return true; 569 } 570 else 571 { 572 Log *log(lldb_private::GetLogIfAllCategoriesSet (LIBLLDB_LOG_SYMBOLS)); 573 574 if (log) 575 { 576 log->Printf ("warning: inlined block 0x%8.8" PRIx64 " doesn't have a range that contains file address 0x%" PRIx64, 577 curr_inlined_block->GetID(), curr_frame_pc.GetFileAddress()); 578 } 579 #ifdef LLDB_CONFIGURATION_DEBUG 580 else 581 { 582 ObjectFile *objfile = NULL; 583 if (module_sp) 584 { 585 SymbolVendor *symbol_vendor = module_sp->GetSymbolVendor(); 586 if (symbol_vendor) 587 { 588 SymbolFile *symbol_file = symbol_vendor->GetSymbolFile(); 589 if (symbol_file) 590 objfile = symbol_file->GetObjectFile(); 591 } 592 } 593 if (objfile) 594 { 595 Host::SystemLog (Host::eSystemLogWarning, 596 "warning: inlined block 0x%8.8" PRIx64 " doesn't have a range that contains file address 0x%" PRIx64 " in %s\n", 597 curr_inlined_block->GetID(), 598 curr_frame_pc.GetFileAddress(), 599 objfile->GetFileSpec().GetPath().c_str()); 600 } 601 else 602 { 603 Host::SystemLog (Host::eSystemLogWarning, 604 "warning: inlined block 0x%8.8" PRIx64 " doesn't have a range that contains file address 0x%" PRIx64 "\n", 605 curr_inlined_block->GetID(), 606 curr_frame_pc.GetFileAddress()); 607 } 608 } 609 #endif 610 } 611 } 612 } 613 614 return false; 615 } 616 617 Block * 618 SymbolContext::GetFunctionBlock () 619 { 620 if (function) 621 { 622 if (block) 623 { 624 // If this symbol context has a block, check to see if this block 625 // is itself, or is contained within a block with inlined function 626 // information. If so, then the inlined block is the block that 627 // defines the function. 628 Block *inlined_block = block->GetContainingInlinedBlock(); 629 if (inlined_block) 630 return inlined_block; 631 632 // The block in this symbol context is not inside an inlined 633 // block, so the block that defines the function is the function's 634 // top level block, which is returned below. 635 } 636 637 // There is no block information in this symbol context, so we must 638 // assume that the block that is desired is the top level block of 639 // the function itself. 640 return &function->GetBlock(true); 641 } 642 return nullptr; 643 } 644 645 bool 646 SymbolContext::GetFunctionMethodInfo (lldb::LanguageType &language, 647 bool &is_instance_method, 648 ConstString &language_object_name) 649 650 651 { 652 Block *function_block = GetFunctionBlock(); 653 if (function_block) 654 { 655 CompilerDeclContext decl_ctx = function_block->GetDeclContext(); 656 if (decl_ctx) 657 return decl_ctx.IsClassMethod(&language, &is_instance_method, &language_object_name); 658 } 659 return false; 660 } 661 662 ConstString 663 SymbolContext::GetFunctionName (Mangled::NamePreference preference) const 664 { 665 if (function) 666 { 667 if (block) 668 { 669 Block *inlined_block = block->GetContainingInlinedBlock(); 670 671 if (inlined_block) 672 { 673 const InlineFunctionInfo *inline_info = inlined_block->GetInlinedFunctionInfo(); 674 if (inline_info) 675 return inline_info->GetName(function->GetLanguage()); 676 } 677 } 678 return function->GetMangled().GetName(function->GetLanguage(), preference); 679 } 680 else if (symbol && symbol->ValueIsAddress()) 681 { 682 return symbol->GetMangled().GetName(symbol->GetLanguage(), preference); 683 } 684 else 685 { 686 // No function, return an empty string. 687 return ConstString(); 688 } 689 } 690 691 LineEntry 692 SymbolContext::GetFunctionStartLineEntry () const 693 { 694 LineEntry line_entry; 695 Address start_addr; 696 if (block) 697 { 698 Block *inlined_block = block->GetContainingInlinedBlock(); 699 if (inlined_block) 700 { 701 if (inlined_block->GetStartAddress (start_addr)) 702 { 703 if (start_addr.CalculateSymbolContextLineEntry (line_entry)) 704 return line_entry; 705 } 706 return LineEntry(); 707 } 708 } 709 710 if (function) 711 { 712 if (function->GetAddressRange().GetBaseAddress().CalculateSymbolContextLineEntry(line_entry)) 713 return line_entry; 714 } 715 return LineEntry(); 716 } 717 718 //---------------------------------------------------------------------- 719 // 720 // SymbolContextSpecifier 721 // 722 //---------------------------------------------------------------------- 723 724 SymbolContextSpecifier::SymbolContextSpecifier (const TargetSP &target_sp) : 725 m_target_sp (target_sp), 726 m_module_spec (), 727 m_module_sp (), 728 m_file_spec_ap (), 729 m_start_line (0), 730 m_end_line (0), 731 m_function_spec (), 732 m_class_name (), 733 m_address_range_ap (), 734 m_type (eNothingSpecified) 735 { 736 } 737 738 SymbolContextSpecifier::~SymbolContextSpecifier() 739 { 740 } 741 742 bool 743 SymbolContextSpecifier::AddLineSpecification (uint32_t line_no, SpecificationType type) 744 { 745 bool return_value = true; 746 switch (type) 747 { 748 case eNothingSpecified: 749 Clear(); 750 break; 751 case eLineStartSpecified: 752 m_start_line = line_no; 753 m_type |= eLineStartSpecified; 754 break; 755 case eLineEndSpecified: 756 m_end_line = line_no; 757 m_type |= eLineEndSpecified; 758 break; 759 default: 760 return_value = false; 761 break; 762 } 763 return return_value; 764 } 765 766 bool 767 SymbolContextSpecifier::AddSpecification (const char *spec_string, SpecificationType type) 768 { 769 bool return_value = true; 770 switch (type) 771 { 772 case eNothingSpecified: 773 Clear(); 774 break; 775 case eModuleSpecified: 776 { 777 // See if we can find the Module, if so stick it in the SymbolContext. 778 FileSpec module_file_spec(spec_string, false); 779 ModuleSpec module_spec (module_file_spec); 780 lldb::ModuleSP module_sp (m_target_sp->GetImages().FindFirstModule (module_spec)); 781 m_type |= eModuleSpecified; 782 if (module_sp) 783 m_module_sp = module_sp; 784 else 785 m_module_spec.assign (spec_string); 786 } 787 break; 788 case eFileSpecified: 789 // CompUnits can't necessarily be resolved here, since an inlined function might show up in 790 // a number of CompUnits. Instead we just convert to a FileSpec and store it away. 791 m_file_spec_ap.reset (new FileSpec (spec_string, false)); 792 m_type |= eFileSpecified; 793 break; 794 case eLineStartSpecified: 795 m_start_line = StringConvert::ToSInt32(spec_string, 0, 0, &return_value); 796 if (return_value) 797 m_type |= eLineStartSpecified; 798 break; 799 case eLineEndSpecified: 800 m_end_line = StringConvert::ToSInt32(spec_string, 0, 0, &return_value); 801 if (return_value) 802 m_type |= eLineEndSpecified; 803 break; 804 case eFunctionSpecified: 805 m_function_spec.assign(spec_string); 806 m_type |= eFunctionSpecified; 807 break; 808 case eClassOrNamespaceSpecified: 809 Clear(); 810 m_class_name.assign (spec_string); 811 m_type = eClassOrNamespaceSpecified; 812 break; 813 case eAddressRangeSpecified: 814 // Not specified yet... 815 break; 816 } 817 818 return return_value; 819 } 820 821 void 822 SymbolContextSpecifier::Clear() 823 { 824 m_module_spec.clear(); 825 m_file_spec_ap.reset(); 826 m_function_spec.clear(); 827 m_class_name.clear(); 828 m_start_line = 0; 829 m_end_line = 0; 830 m_address_range_ap.reset(); 831 832 m_type = eNothingSpecified; 833 } 834 835 bool 836 SymbolContextSpecifier::SymbolContextMatches(SymbolContext &sc) 837 { 838 if (m_type == eNothingSpecified) 839 return true; 840 841 if (m_target_sp.get() != sc.target_sp.get()) 842 return false; 843 844 if (m_type & eModuleSpecified) 845 { 846 if (sc.module_sp) 847 { 848 if (m_module_sp.get() != nullptr) 849 { 850 if (m_module_sp.get() != sc.module_sp.get()) 851 return false; 852 } 853 else 854 { 855 FileSpec module_file_spec (m_module_spec.c_str(), false); 856 if (!FileSpec::Equal (module_file_spec, sc.module_sp->GetFileSpec(), false)) 857 return false; 858 } 859 } 860 } 861 if (m_type & eFileSpecified) 862 { 863 if (m_file_spec_ap.get()) 864 { 865 // If we don't have a block or a comp_unit, then we aren't going to match a source file. 866 if (sc.block == nullptr && sc.comp_unit == nullptr) 867 return false; 868 869 // Check if the block is present, and if so is it inlined: 870 bool was_inlined = false; 871 if (sc.block != nullptr) 872 { 873 const InlineFunctionInfo *inline_info = sc.block->GetInlinedFunctionInfo(); 874 if (inline_info != nullptr) 875 { 876 was_inlined = true; 877 if (!FileSpec::Equal (inline_info->GetDeclaration().GetFile(), *(m_file_spec_ap.get()), false)) 878 return false; 879 } 880 } 881 882 // Next check the comp unit, but only if the SymbolContext was not inlined. 883 if (!was_inlined && sc.comp_unit != nullptr) 884 { 885 if (!FileSpec::Equal (*(sc.comp_unit), *(m_file_spec_ap.get()), false)) 886 return false; 887 } 888 } 889 } 890 if (m_type & eLineStartSpecified 891 || m_type & eLineEndSpecified) 892 { 893 if (sc.line_entry.line < m_start_line || sc.line_entry.line > m_end_line) 894 return false; 895 } 896 897 if (m_type & eFunctionSpecified) 898 { 899 // First check the current block, and if it is inlined, get the inlined function name: 900 bool was_inlined = false; 901 ConstString func_name(m_function_spec.c_str()); 902 903 if (sc.block != nullptr) 904 { 905 const InlineFunctionInfo *inline_info = sc.block->GetInlinedFunctionInfo(); 906 if (inline_info != nullptr) 907 { 908 was_inlined = true; 909 const Mangled &name = inline_info->GetMangled(); 910 if (!name.NameMatches (func_name, sc.function->GetLanguage())) 911 return false; 912 } 913 } 914 // If it wasn't inlined, check the name in the function or symbol: 915 if (!was_inlined) 916 { 917 if (sc.function != nullptr) 918 { 919 if (!sc.function->GetMangled().NameMatches(func_name, sc.function->GetLanguage())) 920 return false; 921 } 922 else if (sc.symbol != nullptr) 923 { 924 if (!sc.symbol->GetMangled().NameMatches(func_name, sc.function->GetLanguage())) 925 return false; 926 } 927 } 928 929 930 } 931 932 return true; 933 } 934 935 bool 936 SymbolContextSpecifier::AddressMatches(lldb::addr_t addr) 937 { 938 if (m_type & eAddressRangeSpecified) 939 { 940 941 } 942 else 943 { 944 Address match_address (addr, nullptr); 945 SymbolContext sc; 946 m_target_sp->GetImages().ResolveSymbolContextForAddress(match_address, eSymbolContextEverything, sc); 947 return SymbolContextMatches(sc); 948 } 949 return true; 950 } 951 952 void 953 SymbolContextSpecifier::GetDescription (Stream *s, lldb::DescriptionLevel level) const 954 { 955 char path_str[PATH_MAX + 1]; 956 957 if (m_type == eNothingSpecified) 958 { 959 s->Printf ("Nothing specified.\n"); 960 } 961 962 if (m_type == eModuleSpecified) 963 { 964 s->Indent(); 965 if (m_module_sp) 966 { 967 m_module_sp->GetFileSpec().GetPath (path_str, PATH_MAX); 968 s->Printf ("Module: %s\n", path_str); 969 } 970 else 971 s->Printf ("Module: %s\n", m_module_spec.c_str()); 972 } 973 974 if (m_type == eFileSpecified && m_file_spec_ap.get() != nullptr) 975 { 976 m_file_spec_ap->GetPath (path_str, PATH_MAX); 977 s->Indent(); 978 s->Printf ("File: %s", path_str); 979 if (m_type == eLineStartSpecified) 980 { 981 s->Printf (" from line %" PRIu64 "", (uint64_t)m_start_line); 982 if (m_type == eLineEndSpecified) 983 s->Printf ("to line %" PRIu64 "", (uint64_t)m_end_line); 984 else 985 s->Printf ("to end"); 986 } 987 else if (m_type == eLineEndSpecified) 988 { 989 s->Printf (" from start to line %" PRIu64 "", (uint64_t)m_end_line); 990 } 991 s->Printf (".\n"); 992 } 993 994 if (m_type == eLineStartSpecified) 995 { 996 s->Indent(); 997 s->Printf ("From line %" PRIu64 "", (uint64_t)m_start_line); 998 if (m_type == eLineEndSpecified) 999 s->Printf ("to line %" PRIu64 "", (uint64_t)m_end_line); 1000 else 1001 s->Printf ("to end"); 1002 s->Printf (".\n"); 1003 } 1004 else if (m_type == eLineEndSpecified) 1005 { 1006 s->Printf ("From start to line %" PRIu64 ".\n", (uint64_t)m_end_line); 1007 } 1008 1009 if (m_type == eFunctionSpecified) 1010 { 1011 s->Indent(); 1012 s->Printf ("Function: %s.\n", m_function_spec.c_str()); 1013 } 1014 1015 if (m_type == eClassOrNamespaceSpecified) 1016 { 1017 s->Indent(); 1018 s->Printf ("Class name: %s.\n", m_class_name.c_str()); 1019 } 1020 1021 if (m_type == eAddressRangeSpecified && m_address_range_ap.get() != nullptr) 1022 { 1023 s->Indent(); 1024 s->PutCString ("Address range: "); 1025 m_address_range_ap->Dump (s, m_target_sp.get(), Address::DumpStyleLoadAddress, Address::DumpStyleFileAddress); 1026 s->PutCString ("\n"); 1027 } 1028 } 1029 1030 //---------------------------------------------------------------------- 1031 // 1032 // SymbolContextList 1033 // 1034 //---------------------------------------------------------------------- 1035 1036 1037 SymbolContextList::SymbolContextList() : 1038 m_symbol_contexts() 1039 { 1040 } 1041 1042 SymbolContextList::~SymbolContextList() 1043 { 1044 } 1045 1046 void 1047 SymbolContextList::Append(const SymbolContext& sc) 1048 { 1049 m_symbol_contexts.push_back(sc); 1050 } 1051 1052 void 1053 SymbolContextList::Append (const SymbolContextList& sc_list) 1054 { 1055 collection::const_iterator pos, end = sc_list.m_symbol_contexts.end(); 1056 for (pos = sc_list.m_symbol_contexts.begin(); pos != end; ++pos) 1057 m_symbol_contexts.push_back (*pos); 1058 } 1059 1060 1061 uint32_t 1062 SymbolContextList::AppendIfUnique (const SymbolContextList& sc_list, bool merge_symbol_into_function) 1063 { 1064 uint32_t unique_sc_add_count = 0; 1065 collection::const_iterator pos, end = sc_list.m_symbol_contexts.end(); 1066 for (pos = sc_list.m_symbol_contexts.begin(); pos != end; ++pos) 1067 { 1068 if (AppendIfUnique (*pos, merge_symbol_into_function)) 1069 ++unique_sc_add_count; 1070 } 1071 return unique_sc_add_count; 1072 } 1073 1074 bool 1075 SymbolContextList::AppendIfUnique (const SymbolContext& sc, bool merge_symbol_into_function) 1076 { 1077 collection::iterator pos, end = m_symbol_contexts.end(); 1078 for (pos = m_symbol_contexts.begin(); pos != end; ++pos) 1079 { 1080 if (*pos == sc) 1081 return false; 1082 } 1083 if (merge_symbol_into_function 1084 && sc.symbol != nullptr 1085 && sc.comp_unit == nullptr 1086 && sc.function == nullptr 1087 && sc.block == nullptr 1088 && sc.line_entry.IsValid() == false) 1089 { 1090 if (sc.symbol->ValueIsAddress()) 1091 { 1092 for (pos = m_symbol_contexts.begin(); pos != end; ++pos) 1093 { 1094 // Don't merge symbols into inlined function symbol contexts 1095 if (pos->block && pos->block->GetContainingInlinedBlock()) 1096 continue; 1097 1098 if (pos->function) 1099 { 1100 if (pos->function->GetAddressRange().GetBaseAddress() == sc.symbol->GetAddressRef()) 1101 { 1102 // Do we already have a function with this symbol? 1103 if (pos->symbol == sc.symbol) 1104 return false; 1105 if (pos->symbol == nullptr) 1106 { 1107 pos->symbol = sc.symbol; 1108 return false; 1109 } 1110 } 1111 } 1112 } 1113 } 1114 } 1115 m_symbol_contexts.push_back(sc); 1116 return true; 1117 } 1118 1119 bool 1120 SymbolContextList::MergeSymbolContextIntoFunctionContext (const SymbolContext& symbol_sc, 1121 uint32_t start_idx, 1122 uint32_t stop_idx) 1123 { 1124 if (symbol_sc.symbol != nullptr 1125 && symbol_sc.comp_unit == nullptr 1126 && symbol_sc.function == nullptr 1127 && symbol_sc.block == nullptr 1128 && symbol_sc.line_entry.IsValid() == false) 1129 { 1130 if (symbol_sc.symbol->ValueIsAddress()) 1131 { 1132 const size_t end = std::min<size_t>(m_symbol_contexts.size(), stop_idx); 1133 for (size_t i=start_idx; i<end; ++i) 1134 { 1135 const SymbolContext &function_sc = m_symbol_contexts[i]; 1136 // Don't merge symbols into inlined function symbol contexts 1137 if (function_sc.block && function_sc.block->GetContainingInlinedBlock()) 1138 continue; 1139 1140 if (function_sc.function) 1141 { 1142 if (function_sc.function->GetAddressRange().GetBaseAddress() == symbol_sc.symbol->GetAddressRef()) 1143 { 1144 // Do we already have a function with this symbol? 1145 if (function_sc.symbol == symbol_sc.symbol) 1146 return true; // Already have a symbol context with this symbol, return true 1147 1148 if (function_sc.symbol == nullptr) 1149 { 1150 // We successfully merged this symbol into an existing symbol context 1151 m_symbol_contexts[i].symbol = symbol_sc.symbol; 1152 return true; 1153 } 1154 } 1155 } 1156 } 1157 } 1158 } 1159 return false; 1160 } 1161 1162 void 1163 SymbolContextList::Clear() 1164 { 1165 m_symbol_contexts.clear(); 1166 } 1167 1168 void 1169 SymbolContextList::Dump(Stream *s, Target *target) const 1170 { 1171 1172 *s << this << ": "; 1173 s->Indent(); 1174 s->PutCString("SymbolContextList"); 1175 s->EOL(); 1176 s->IndentMore(); 1177 1178 collection::const_iterator pos, end = m_symbol_contexts.end(); 1179 for (pos = m_symbol_contexts.begin(); pos != end; ++pos) 1180 { 1181 //pos->Dump(s, target); 1182 pos->GetDescription(s, eDescriptionLevelVerbose, target); 1183 } 1184 s->IndentLess(); 1185 } 1186 1187 bool 1188 SymbolContextList::GetContextAtIndex(size_t idx, SymbolContext& sc) const 1189 { 1190 if (idx < m_symbol_contexts.size()) 1191 { 1192 sc = m_symbol_contexts[idx]; 1193 return true; 1194 } 1195 return false; 1196 } 1197 1198 bool 1199 SymbolContextList::GetLastContext(SymbolContext& sc) const 1200 { 1201 if (!m_symbol_contexts.empty()) 1202 { 1203 sc = m_symbol_contexts.back(); 1204 return true; 1205 } 1206 return false; 1207 } 1208 1209 bool 1210 SymbolContextList::RemoveContextAtIndex (size_t idx) 1211 { 1212 if (idx < m_symbol_contexts.size()) 1213 { 1214 m_symbol_contexts.erase(m_symbol_contexts.begin() + idx); 1215 return true; 1216 } 1217 return false; 1218 } 1219 1220 uint32_t 1221 SymbolContextList::GetSize() const 1222 { 1223 return m_symbol_contexts.size(); 1224 } 1225 1226 uint32_t 1227 SymbolContextList::NumLineEntriesWithLine (uint32_t line) const 1228 { 1229 uint32_t match_count = 0; 1230 const size_t size = m_symbol_contexts.size(); 1231 for (size_t idx = 0; idx<size; ++idx) 1232 { 1233 if (m_symbol_contexts[idx].line_entry.line == line) 1234 ++match_count; 1235 } 1236 return match_count; 1237 } 1238 1239 void 1240 SymbolContextList::GetDescription(Stream *s, 1241 lldb::DescriptionLevel level, 1242 Target *target) const 1243 { 1244 const size_t size = m_symbol_contexts.size(); 1245 for (size_t idx = 0; idx<size; ++idx) 1246 m_symbol_contexts[idx].GetDescription (s, level, target); 1247 } 1248 1249 bool 1250 lldb_private::operator== (const SymbolContextList& lhs, const SymbolContextList& rhs) 1251 { 1252 const uint32_t size = lhs.GetSize(); 1253 if (size != rhs.GetSize()) 1254 return false; 1255 1256 SymbolContext lhs_sc; 1257 SymbolContext rhs_sc; 1258 for (uint32_t i=0; i<size; ++i) 1259 { 1260 lhs.GetContextAtIndex(i, lhs_sc); 1261 rhs.GetContextAtIndex(i, rhs_sc); 1262 if (lhs_sc != rhs_sc) 1263 return false; 1264 } 1265 return true; 1266 } 1267 1268 bool 1269 lldb_private::operator!= (const SymbolContextList& lhs, const SymbolContextList& rhs) 1270 { 1271 return !(lhs == rhs); 1272 } 1273 1274