1 //===-- CommandObjectSource.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 "CommandObjectSource.h" 11 12 // C Includes 13 // C++ Includes 14 // Other libraries and framework includes 15 // Project includes 16 #include "lldb/Core/Debugger.h" 17 #include "lldb/Core/FileLineResolver.h" 18 #include "lldb/Core/Module.h" 19 #include "lldb/Core/ModuleSpec.h" 20 #include "lldb/Core/SourceManager.h" 21 #include "lldb/Interpreter/CommandInterpreter.h" 22 #include "lldb/Interpreter/CommandReturnObject.h" 23 #include "lldb/Host/FileSpec.h" 24 #include "lldb/Host/StringConvert.h" 25 #include "lldb/Symbol/CompileUnit.h" 26 #include "lldb/Symbol/Function.h" 27 #include "lldb/Symbol/Symbol.h" 28 #include "lldb/Target/Process.h" 29 #include "lldb/Target/SectionLoadList.h" 30 #include "lldb/Target/TargetList.h" 31 #include "lldb/Interpreter/CommandCompletions.h" 32 #include "lldb/Interpreter/Options.h" 33 34 using namespace lldb; 35 using namespace lldb_private; 36 37 //------------------------------------------------------------------------- 38 // CommandObjectSourceInfo 39 //------------------------------------------------------------------------- 40 41 class CommandObjectSourceInfo : public CommandObjectParsed 42 { 43 44 class CommandOptions : public Options 45 { 46 public: 47 CommandOptions (CommandInterpreter &interpreter) : 48 Options(interpreter) 49 { 50 } 51 52 ~CommandOptions () 53 { 54 } 55 56 Error 57 SetOptionValue (uint32_t option_idx, const char *option_arg) 58 { 59 Error error; 60 const int short_option = g_option_table[option_idx].short_option; 61 switch (short_option) 62 { 63 case 'l': 64 start_line = StringConvert::ToUInt32 (option_arg, 0); 65 if (start_line == 0) 66 error.SetErrorStringWithFormat("invalid line number: '%s'", option_arg); 67 break; 68 69 case 'f': 70 file_name = option_arg; 71 break; 72 73 default: 74 error.SetErrorStringWithFormat("unrecognized short option '%c'", short_option); 75 break; 76 } 77 78 return error; 79 } 80 81 void 82 OptionParsingStarting () 83 { 84 file_spec.Clear(); 85 file_name.clear(); 86 start_line = 0; 87 } 88 89 const OptionDefinition* 90 GetDefinitions () 91 { 92 return g_option_table; 93 } 94 static OptionDefinition g_option_table[]; 95 96 // Instance variables to hold the values for command options. 97 FileSpec file_spec; 98 std::string file_name; 99 uint32_t start_line; 100 101 }; 102 103 public: 104 CommandObjectSourceInfo(CommandInterpreter &interpreter) : 105 CommandObjectParsed (interpreter, 106 "source info", 107 "Display information about the source lines from the current executable's debug info.", 108 "source info [<cmd-options>]"), 109 m_options (interpreter) 110 { 111 } 112 113 ~CommandObjectSourceInfo () 114 { 115 } 116 117 118 Options * 119 GetOptions () 120 { 121 return &m_options; 122 } 123 124 protected: 125 bool 126 DoExecute (Args& command, CommandReturnObject &result) 127 { 128 result.AppendError ("Not yet implemented"); 129 result.SetStatus (eReturnStatusFailed); 130 return false; 131 } 132 133 CommandOptions m_options; 134 }; 135 136 OptionDefinition 137 CommandObjectSourceInfo::CommandOptions::g_option_table[] = 138 { 139 { LLDB_OPT_SET_1, false, "line", 'l', OptionParser::eRequiredArgument, NULL, NULL, 0, eArgTypeLineNum, "The line number at which to start the display source."}, 140 { LLDB_OPT_SET_1, false, "file", 'f', OptionParser::eRequiredArgument, NULL, NULL, CommandCompletions::eSourceFileCompletion, eArgTypeFilename, "The file from which to display source."}, 141 { 0, false, NULL, 0, 0, NULL, NULL, 0, eArgTypeNone, NULL } 142 }; 143 144 #pragma mark CommandObjectSourceList 145 //------------------------------------------------------------------------- 146 // CommandObjectSourceList 147 //------------------------------------------------------------------------- 148 149 class CommandObjectSourceList : public CommandObjectParsed 150 { 151 152 class CommandOptions : public Options 153 { 154 public: 155 CommandOptions (CommandInterpreter &interpreter) : 156 Options(interpreter) 157 { 158 } 159 160 ~CommandOptions () 161 { 162 } 163 164 Error 165 SetOptionValue (uint32_t option_idx, const char *option_arg) 166 { 167 Error error; 168 const int short_option = g_option_table[option_idx].short_option; 169 switch (short_option) 170 { 171 case 'l': 172 start_line = StringConvert::ToUInt32 (option_arg, 0); 173 if (start_line == 0) 174 error.SetErrorStringWithFormat("invalid line number: '%s'", option_arg); 175 break; 176 177 case 'c': 178 num_lines = StringConvert::ToUInt32 (option_arg, 0); 179 if (num_lines == 0) 180 error.SetErrorStringWithFormat("invalid line count: '%s'", option_arg); 181 break; 182 183 case 'f': 184 file_name = option_arg; 185 break; 186 187 case 'n': 188 symbol_name = option_arg; 189 break; 190 191 case 'a': 192 { 193 ExecutionContext exe_ctx (m_interpreter.GetExecutionContext()); 194 address = Args::StringToAddress(&exe_ctx, option_arg, LLDB_INVALID_ADDRESS, &error); 195 } 196 break; 197 case 's': 198 modules.push_back (std::string (option_arg)); 199 break; 200 201 case 'b': 202 show_bp_locs = true; 203 break; 204 case 'r': 205 reverse = true; 206 break; 207 default: 208 error.SetErrorStringWithFormat("unrecognized short option '%c'", short_option); 209 break; 210 } 211 212 return error; 213 } 214 215 void 216 OptionParsingStarting () 217 { 218 file_spec.Clear(); 219 file_name.clear(); 220 symbol_name.clear(); 221 address = LLDB_INVALID_ADDRESS; 222 start_line = 0; 223 num_lines = 0; 224 show_bp_locs = false; 225 reverse = false; 226 modules.clear(); 227 } 228 229 const OptionDefinition* 230 GetDefinitions () 231 { 232 return g_option_table; 233 } 234 static OptionDefinition g_option_table[]; 235 236 // Instance variables to hold the values for command options. 237 FileSpec file_spec; 238 std::string file_name; 239 std::string symbol_name; 240 lldb::addr_t address; 241 uint32_t start_line; 242 uint32_t num_lines; 243 STLStringArray modules; 244 bool show_bp_locs; 245 bool reverse; 246 }; 247 248 public: 249 CommandObjectSourceList(CommandInterpreter &interpreter) : 250 CommandObjectParsed (interpreter, 251 "source list", 252 "Display source code (as specified) based on the current executable's debug info.", 253 NULL, 254 eCommandRequiresTarget), 255 m_options (interpreter) 256 { 257 } 258 259 ~CommandObjectSourceList () 260 { 261 } 262 263 264 Options * 265 GetOptions () 266 { 267 return &m_options; 268 } 269 270 virtual const char * 271 GetRepeatCommand (Args ¤t_command_args, uint32_t index) 272 { 273 // This is kind of gross, but the command hasn't been parsed yet so we can't look at the option 274 // values for this invocation... I have to scan the arguments directly. 275 size_t num_args = current_command_args.GetArgumentCount(); 276 bool is_reverse = false; 277 for (size_t i = 0 ; i < num_args; i++) 278 { 279 const char *arg = current_command_args.GetArgumentAtIndex(i); 280 if (arg && (strcmp(arg, "-r") == 0 || strcmp(arg, "--reverse") == 0)) 281 { 282 is_reverse = true; 283 } 284 } 285 if (is_reverse) 286 { 287 if (m_reverse_name.empty()) 288 { 289 m_reverse_name = m_cmd_name; 290 m_reverse_name.append (" -r"); 291 } 292 return m_reverse_name.c_str(); 293 } 294 else 295 return m_cmd_name.c_str(); 296 } 297 298 protected: 299 300 struct SourceInfo 301 { 302 ConstString function; 303 LineEntry line_entry; 304 305 SourceInfo (const ConstString &name, const LineEntry &line_entry) : 306 function(name), 307 line_entry(line_entry) 308 { 309 } 310 311 SourceInfo () : 312 function(), 313 line_entry() 314 { 315 } 316 317 bool 318 IsValid () const 319 { 320 return (bool)function && line_entry.IsValid(); 321 } 322 323 bool 324 operator == (const SourceInfo &rhs) const 325 { 326 return function == rhs.function && 327 line_entry.file == rhs.line_entry.file && 328 line_entry.line == rhs.line_entry.line; 329 } 330 331 bool 332 operator != (const SourceInfo &rhs) const 333 { 334 return function != rhs.function || 335 line_entry.file != rhs.line_entry.file || 336 line_entry.line != rhs.line_entry.line; 337 } 338 339 bool 340 operator < (const SourceInfo &rhs) const 341 { 342 if (function.GetCString() < rhs.function.GetCString()) 343 return true; 344 if (line_entry.file.GetDirectory().GetCString() < rhs.line_entry.file.GetDirectory().GetCString()) 345 return true; 346 if (line_entry.file.GetFilename().GetCString() < rhs.line_entry.file.GetFilename().GetCString()) 347 return true; 348 if (line_entry.line < rhs.line_entry.line) 349 return true; 350 return false; 351 } 352 }; 353 354 size_t 355 DisplayFunctionSource (const SymbolContext &sc, 356 SourceInfo &source_info, 357 CommandReturnObject &result) 358 { 359 if (!source_info.IsValid()) 360 { 361 source_info.function = sc.GetFunctionName(); 362 source_info.line_entry = sc.GetFunctionStartLineEntry(); 363 } 364 365 if (sc.function) 366 { 367 Target *target = m_exe_ctx.GetTargetPtr(); 368 369 FileSpec start_file; 370 uint32_t start_line; 371 uint32_t end_line; 372 FileSpec end_file; 373 374 if (sc.block == NULL) 375 { 376 // Not an inlined function 377 sc.function->GetStartLineSourceInfo (start_file, start_line); 378 if (start_line == 0) 379 { 380 result.AppendErrorWithFormat("Could not find line information for start of function: \"%s\".\n", source_info.function.GetCString()); 381 result.SetStatus (eReturnStatusFailed); 382 return 0; 383 } 384 sc.function->GetEndLineSourceInfo (end_file, end_line); 385 } 386 else 387 { 388 // We have an inlined function 389 start_file = source_info.line_entry.file; 390 start_line = source_info.line_entry.line; 391 end_line = start_line + m_options.num_lines; 392 } 393 394 // This is a little hacky, but the first line table entry for a function points to the "{" that 395 // starts the function block. It would be nice to actually get the function 396 // declaration in there too. So back up a bit, but not further than what you're going to display. 397 uint32_t extra_lines; 398 if (m_options.num_lines >= 10) 399 extra_lines = 5; 400 else 401 extra_lines = m_options.num_lines/2; 402 uint32_t line_no; 403 if (start_line <= extra_lines) 404 line_no = 1; 405 else 406 line_no = start_line - extra_lines; 407 408 // For fun, if the function is shorter than the number of lines we're supposed to display, 409 // only display the function... 410 if (end_line != 0) 411 { 412 if (m_options.num_lines > end_line - line_no) 413 m_options.num_lines = end_line - line_no + extra_lines; 414 } 415 416 m_breakpoint_locations.Clear(); 417 418 if (m_options.show_bp_locs) 419 { 420 const bool show_inlines = true; 421 m_breakpoint_locations.Reset (start_file, 0, show_inlines); 422 SearchFilterForUnconstrainedSearches target_search_filter (m_exe_ctx.GetTargetSP()); 423 target_search_filter.Search (m_breakpoint_locations); 424 } 425 426 result.AppendMessageWithFormat("File: %s\n", start_file.GetPath().c_str()); 427 return target->GetSourceManager().DisplaySourceLinesWithLineNumbers (start_file, 428 line_no, 429 0, 430 m_options.num_lines, 431 "", 432 &result.GetOutputStream(), 433 GetBreakpointLocations ()); 434 } 435 else 436 { 437 result.AppendErrorWithFormat("Could not find function info for: \"%s\".\n", m_options.symbol_name.c_str()); 438 } 439 return 0; 440 } 441 442 // From Jim: The FindMatchingFunctions / FindMatchingFunctionSymbols functions 443 // "take a possibly empty vector of strings which are names of modules, and 444 // run the two search functions on the subset of the full module list that 445 // matches the strings in the input vector". If we wanted to put these somewhere, 446 // there should probably be a module-filter-list that can be passed to the 447 // various ModuleList::Find* calls, which would either be a vector of string 448 // names or a ModuleSpecList. 449 size_t FindMatchingFunctions (Target *target, const ConstString &name, SymbolContextList& sc_list) 450 { 451 // Displaying the source for a symbol: 452 bool include_inlines = true; 453 bool append = true; 454 bool include_symbols = false; 455 size_t num_matches = 0; 456 457 if (m_options.num_lines == 0) 458 m_options.num_lines = 10; 459 460 const size_t num_modules = m_options.modules.size(); 461 if (num_modules > 0) 462 { 463 ModuleList matching_modules; 464 for (size_t i = 0; i < num_modules; ++i) 465 { 466 FileSpec module_file_spec(m_options.modules[i].c_str(), false); 467 if (module_file_spec) 468 { 469 ModuleSpec module_spec (module_file_spec); 470 matching_modules.Clear(); 471 target->GetImages().FindModules (module_spec, matching_modules); 472 num_matches += matching_modules.FindFunctions (name, eFunctionNameTypeAuto, include_symbols, include_inlines, append, sc_list); 473 } 474 } 475 } 476 else 477 { 478 num_matches = target->GetImages().FindFunctions (name, eFunctionNameTypeAuto, include_symbols, include_inlines, append, sc_list); 479 } 480 return num_matches; 481 } 482 483 size_t FindMatchingFunctionSymbols (Target *target, const ConstString &name, SymbolContextList& sc_list) 484 { 485 size_t num_matches = 0; 486 const size_t num_modules = m_options.modules.size(); 487 if (num_modules > 0) 488 { 489 ModuleList matching_modules; 490 for (size_t i = 0; i < num_modules; ++i) 491 { 492 FileSpec module_file_spec(m_options.modules[i].c_str(), false); 493 if (module_file_spec) 494 { 495 ModuleSpec module_spec (module_file_spec); 496 matching_modules.Clear(); 497 target->GetImages().FindModules (module_spec, matching_modules); 498 num_matches += matching_modules.FindFunctionSymbols (name, eFunctionNameTypeAuto, sc_list); 499 } 500 } 501 } 502 else 503 { 504 num_matches = target->GetImages().FindFunctionSymbols (name, eFunctionNameTypeAuto, sc_list); 505 } 506 return num_matches; 507 } 508 509 bool 510 DoExecute (Args& command, CommandReturnObject &result) 511 { 512 const size_t argc = command.GetArgumentCount(); 513 514 if (argc != 0) 515 { 516 result.AppendErrorWithFormat("'%s' takes no arguments, only flags.\n", GetCommandName()); 517 result.SetStatus (eReturnStatusFailed); 518 return false; 519 } 520 521 Target *target = m_exe_ctx.GetTargetPtr(); 522 523 if (!m_options.symbol_name.empty()) 524 { 525 SymbolContextList sc_list; 526 ConstString name(m_options.symbol_name.c_str()); 527 528 // Displaying the source for a symbol. Search for function named name. 529 size_t num_matches = FindMatchingFunctions (target, name, sc_list); 530 if (!num_matches) 531 { 532 // If we didn't find any functions with that name, try searching for symbols 533 // that line up exactly with function addresses. 534 SymbolContextList sc_list_symbols; 535 size_t num_symbol_matches = FindMatchingFunctionSymbols (target, name, sc_list_symbols); 536 for (size_t i = 0; i < num_symbol_matches; i++) 537 { 538 SymbolContext sc; 539 sc_list_symbols.GetContextAtIndex (i, sc); 540 if (sc.symbol && sc.symbol->ValueIsAddress()) 541 { 542 const Address &base_address = sc.symbol->GetAddressRef(); 543 Function *function = base_address.CalculateSymbolContextFunction(); 544 if (function) 545 { 546 sc_list.Append (SymbolContext(function)); 547 num_matches++; 548 break; 549 } 550 } 551 } 552 } 553 554 if (num_matches == 0) 555 { 556 result.AppendErrorWithFormat("Could not find function named: \"%s\".\n", m_options.symbol_name.c_str()); 557 result.SetStatus (eReturnStatusFailed); 558 return false; 559 } 560 561 if (num_matches > 1) 562 { 563 std::set<SourceInfo> source_match_set; 564 565 bool displayed_something = false; 566 for (size_t i = 0; i < num_matches; i++) 567 { 568 SymbolContext sc; 569 sc_list.GetContextAtIndex (i, sc); 570 SourceInfo source_info (sc.GetFunctionName(), 571 sc.GetFunctionStartLineEntry()); 572 573 if (source_info.IsValid()) 574 { 575 if (source_match_set.find(source_info) == source_match_set.end()) 576 { 577 source_match_set.insert(source_info); 578 if (DisplayFunctionSource (sc, source_info, result)) 579 displayed_something = true; 580 } 581 } 582 } 583 584 if (displayed_something) 585 result.SetStatus (eReturnStatusSuccessFinishResult); 586 else 587 result.SetStatus (eReturnStatusFailed); 588 } 589 else 590 { 591 SymbolContext sc; 592 sc_list.GetContextAtIndex (0, sc); 593 SourceInfo source_info; 594 595 if (DisplayFunctionSource (sc, source_info, result)) 596 { 597 result.SetStatus (eReturnStatusSuccessFinishResult); 598 } 599 else 600 { 601 result.SetStatus (eReturnStatusFailed); 602 } 603 } 604 return result.Succeeded(); 605 } 606 else if (m_options.address != LLDB_INVALID_ADDRESS) 607 { 608 Address so_addr; 609 StreamString error_strm; 610 SymbolContextList sc_list; 611 612 if (target->GetSectionLoadList().IsEmpty()) 613 { 614 // The target isn't loaded yet, we need to lookup the file address 615 // in all modules 616 const ModuleList &module_list = target->GetImages(); 617 const size_t num_modules = module_list.GetSize(); 618 for (size_t i=0; i<num_modules; ++i) 619 { 620 ModuleSP module_sp (module_list.GetModuleAtIndex(i)); 621 if (module_sp && module_sp->ResolveFileAddress(m_options.address, so_addr)) 622 { 623 SymbolContext sc; 624 sc.Clear(true); 625 if (module_sp->ResolveSymbolContextForAddress (so_addr, eSymbolContextEverything, sc) & eSymbolContextLineEntry) 626 sc_list.Append(sc); 627 } 628 } 629 630 if (sc_list.GetSize() == 0) 631 { 632 result.AppendErrorWithFormat("no modules have source information for file address 0x%" PRIx64 ".\n", 633 m_options.address); 634 result.SetStatus (eReturnStatusFailed); 635 return false; 636 } 637 } 638 else 639 { 640 // The target has some things loaded, resolve this address to a 641 // compile unit + file + line and display 642 if (target->GetSectionLoadList().ResolveLoadAddress (m_options.address, so_addr)) 643 { 644 ModuleSP module_sp (so_addr.GetModule()); 645 if (module_sp) 646 { 647 SymbolContext sc; 648 sc.Clear(true); 649 if (module_sp->ResolveSymbolContextForAddress (so_addr, eSymbolContextEverything, sc) & eSymbolContextLineEntry) 650 { 651 sc_list.Append(sc); 652 } 653 else 654 { 655 so_addr.Dump(&error_strm, NULL, Address::DumpStyleModuleWithFileAddress); 656 result.AppendErrorWithFormat("address resolves to %s, but there is no line table information available for this address.\n", 657 error_strm.GetData()); 658 result.SetStatus (eReturnStatusFailed); 659 return false; 660 } 661 } 662 } 663 664 if (sc_list.GetSize() == 0) 665 { 666 result.AppendErrorWithFormat("no modules contain load address 0x%" PRIx64 ".\n", m_options.address); 667 result.SetStatus (eReturnStatusFailed); 668 return false; 669 } 670 } 671 uint32_t num_matches = sc_list.GetSize(); 672 for (uint32_t i=0; i<num_matches; ++i) 673 { 674 SymbolContext sc; 675 sc_list.GetContextAtIndex(i, sc); 676 if (sc.comp_unit) 677 { 678 if (m_options.show_bp_locs) 679 { 680 m_breakpoint_locations.Clear(); 681 const bool show_inlines = true; 682 m_breakpoint_locations.Reset (*sc.comp_unit, 0, show_inlines); 683 SearchFilterForUnconstrainedSearches target_search_filter (target->shared_from_this()); 684 target_search_filter.Search (m_breakpoint_locations); 685 } 686 687 bool show_fullpaths = true; 688 bool show_module = true; 689 bool show_inlined_frames = true; 690 const bool show_function_arguments = true; 691 const bool show_function_name = true; 692 sc.DumpStopContext(&result.GetOutputStream(), 693 m_exe_ctx.GetBestExecutionContextScope(), 694 sc.line_entry.range.GetBaseAddress(), 695 show_fullpaths, 696 show_module, 697 show_inlined_frames, 698 show_function_arguments, 699 show_function_name); 700 result.GetOutputStream().EOL(); 701 702 if (m_options.num_lines == 0) 703 m_options.num_lines = 10; 704 705 size_t lines_to_back_up = m_options.num_lines >= 10 ? 5 : m_options.num_lines/2; 706 707 target->GetSourceManager().DisplaySourceLinesWithLineNumbers (sc.comp_unit, 708 sc.line_entry.line, 709 lines_to_back_up, 710 m_options.num_lines - lines_to_back_up, 711 "->", 712 &result.GetOutputStream(), 713 GetBreakpointLocations ()); 714 result.SetStatus (eReturnStatusSuccessFinishResult); 715 } 716 } 717 } 718 else if (m_options.file_name.empty()) 719 { 720 // Last valid source manager context, or the current frame if no 721 // valid last context in source manager. 722 // One little trick here, if you type the exact same list command twice in a row, it is 723 // more likely because you typed it once, then typed it again 724 if (m_options.start_line == 0) 725 { 726 if (target->GetSourceManager().DisplayMoreWithLineNumbers (&result.GetOutputStream(), 727 m_options.num_lines, 728 m_options.reverse, 729 GetBreakpointLocations ())) 730 { 731 result.SetStatus (eReturnStatusSuccessFinishResult); 732 } 733 } 734 else 735 { 736 if (m_options.num_lines == 0) 737 m_options.num_lines = 10; 738 739 if (m_options.show_bp_locs) 740 { 741 SourceManager::FileSP last_file_sp (target->GetSourceManager().GetLastFile ()); 742 if (last_file_sp) 743 { 744 const bool show_inlines = true; 745 m_breakpoint_locations.Reset (last_file_sp->GetFileSpec(), 0, show_inlines); 746 SearchFilterForUnconstrainedSearches target_search_filter (target->shared_from_this()); 747 target_search_filter.Search (m_breakpoint_locations); 748 } 749 } 750 else 751 m_breakpoint_locations.Clear(); 752 753 if (target->GetSourceManager().DisplaySourceLinesWithLineNumbersUsingLastFile( 754 m_options.start_line, // Line to display 755 m_options.num_lines, // Lines after line to 756 UINT32_MAX, // Don't mark "line" 757 "", // Don't mark "line" 758 &result.GetOutputStream(), 759 GetBreakpointLocations ())) 760 { 761 result.SetStatus (eReturnStatusSuccessFinishResult); 762 } 763 764 } 765 } 766 else 767 { 768 const char *filename = m_options.file_name.c_str(); 769 770 bool check_inlines = false; 771 SymbolContextList sc_list; 772 size_t num_matches = 0; 773 774 if (m_options.modules.size() > 0) 775 { 776 ModuleList matching_modules; 777 for (size_t i = 0, e = m_options.modules.size(); i < e; ++i) 778 { 779 FileSpec module_file_spec(m_options.modules[i].c_str(), false); 780 if (module_file_spec) 781 { 782 ModuleSpec module_spec (module_file_spec); 783 matching_modules.Clear(); 784 target->GetImages().FindModules (module_spec, matching_modules); 785 num_matches += matching_modules.ResolveSymbolContextForFilePath (filename, 786 0, 787 check_inlines, 788 eSymbolContextModule | eSymbolContextCompUnit, 789 sc_list); 790 } 791 } 792 } 793 else 794 { 795 num_matches = target->GetImages().ResolveSymbolContextForFilePath (filename, 796 0, 797 check_inlines, 798 eSymbolContextModule | eSymbolContextCompUnit, 799 sc_list); 800 } 801 802 if (num_matches == 0) 803 { 804 result.AppendErrorWithFormat("Could not find source file \"%s\".\n", 805 m_options.file_name.c_str()); 806 result.SetStatus (eReturnStatusFailed); 807 return false; 808 } 809 810 if (num_matches > 1) 811 { 812 bool got_multiple = false; 813 FileSpec *test_cu_spec = NULL; 814 815 for (unsigned i = 0; i < num_matches; i++) 816 { 817 SymbolContext sc; 818 sc_list.GetContextAtIndex(i, sc); 819 if (sc.comp_unit) 820 { 821 if (test_cu_spec) 822 { 823 if (test_cu_spec != static_cast<FileSpec *> (sc.comp_unit)) 824 got_multiple = true; 825 break; 826 } 827 else 828 test_cu_spec = sc.comp_unit; 829 } 830 } 831 if (got_multiple) 832 { 833 result.AppendErrorWithFormat("Multiple source files found matching: \"%s.\"\n", 834 m_options.file_name.c_str()); 835 result.SetStatus (eReturnStatusFailed); 836 return false; 837 } 838 } 839 840 SymbolContext sc; 841 if (sc_list.GetContextAtIndex(0, sc)) 842 { 843 if (sc.comp_unit) 844 { 845 if (m_options.show_bp_locs) 846 { 847 const bool show_inlines = true; 848 m_breakpoint_locations.Reset (*sc.comp_unit, 0, show_inlines); 849 SearchFilterForUnconstrainedSearches target_search_filter (target->shared_from_this()); 850 target_search_filter.Search (m_breakpoint_locations); 851 } 852 else 853 m_breakpoint_locations.Clear(); 854 855 if (m_options.num_lines == 0) 856 m_options.num_lines = 10; 857 858 target->GetSourceManager().DisplaySourceLinesWithLineNumbers (sc.comp_unit, 859 m_options.start_line, 860 0, 861 m_options.num_lines, 862 "", 863 &result.GetOutputStream(), 864 GetBreakpointLocations ()); 865 866 result.SetStatus (eReturnStatusSuccessFinishResult); 867 } 868 else 869 { 870 result.AppendErrorWithFormat("No comp unit found for: \"%s.\"\n", 871 m_options.file_name.c_str()); 872 result.SetStatus (eReturnStatusFailed); 873 return false; 874 } 875 } 876 } 877 return result.Succeeded(); 878 } 879 880 const SymbolContextList * 881 GetBreakpointLocations () 882 { 883 if (m_breakpoint_locations.GetFileLineMatches().GetSize() > 0) 884 return &m_breakpoint_locations.GetFileLineMatches(); 885 return NULL; 886 } 887 CommandOptions m_options; 888 FileLineResolver m_breakpoint_locations; 889 std::string m_reverse_name; 890 891 }; 892 893 OptionDefinition 894 CommandObjectSourceList::CommandOptions::g_option_table[] = 895 { 896 { LLDB_OPT_SET_ALL, false, "count", 'c', OptionParser::eRequiredArgument, NULL, NULL, 0, eArgTypeCount, "The number of source lines to display."}, 897 { LLDB_OPT_SET_1 | 898 LLDB_OPT_SET_2 , false, "shlib", 's', OptionParser::eRequiredArgument, NULL, NULL, CommandCompletions::eModuleCompletion, eArgTypeShlibName, "Look up the source file in the given shared library."}, 899 { LLDB_OPT_SET_ALL, false, "show-breakpoints", 'b', OptionParser::eNoArgument, NULL, NULL, 0, eArgTypeNone, "Show the line table locations from the debug information that indicate valid places to set source level breakpoints."}, 900 { LLDB_OPT_SET_1 , false, "file", 'f', OptionParser::eRequiredArgument, NULL, NULL, CommandCompletions::eSourceFileCompletion, eArgTypeFilename, "The file from which to display source."}, 901 { LLDB_OPT_SET_1 , false, "line", 'l', OptionParser::eRequiredArgument, NULL, NULL, 0, eArgTypeLineNum, "The line number at which to start the display source."}, 902 { LLDB_OPT_SET_2 , false, "name", 'n', OptionParser::eRequiredArgument, NULL, NULL, CommandCompletions::eSymbolCompletion, eArgTypeSymbol, "The name of a function whose source to display."}, 903 { LLDB_OPT_SET_3 , false, "address",'a', OptionParser::eRequiredArgument, NULL, NULL, 0, eArgTypeAddressOrExpression, "Lookup the address and display the source information for the corresponding file and line."}, 904 { LLDB_OPT_SET_4, false, "reverse", 'r', OptionParser::eNoArgument, NULL, NULL, 0, eArgTypeNone, "Reverse the listing to look backwards from the last displayed block of source."}, 905 { 0, false, NULL, 0, 0, NULL, NULL, 0, eArgTypeNone, NULL } 906 }; 907 908 #pragma mark CommandObjectMultiwordSource 909 910 //------------------------------------------------------------------------- 911 // CommandObjectMultiwordSource 912 //------------------------------------------------------------------------- 913 914 CommandObjectMultiwordSource::CommandObjectMultiwordSource (CommandInterpreter &interpreter) : 915 CommandObjectMultiword (interpreter, 916 "source", 917 "A set of commands for accessing source file information", 918 "source <subcommand> [<subcommand-options>]") 919 { 920 // "source info" isn't implemented yet... 921 //LoadSubCommand ("info", CommandObjectSP (new CommandObjectSourceInfo (interpreter))); 922 LoadSubCommand ("list", CommandObjectSP (new CommandObjectSourceList (interpreter))); 923 } 924 925 CommandObjectMultiwordSource::~CommandObjectMultiwordSource () 926 { 927 } 928 929