1 //===-- CommandObjectProcess.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 "CommandObjectProcess.h" 11 12 // C Includes 13 // C++ Includes 14 // Other libraries and framework includes 15 // Project includes 16 #include "lldb/Interpreter/Args.h" 17 #include "lldb/Interpreter/Options.h" 18 #include "lldb/Core/State.h" 19 #include "lldb/Host/Host.h" 20 #include "lldb/Interpreter/CommandInterpreter.h" 21 #include "lldb/Interpreter/CommandReturnObject.h" 22 #include "lldb/Target/Platform.h" 23 #include "lldb/Target/Process.h" 24 #include "lldb/Target/Target.h" 25 #include "lldb/Target/Thread.h" 26 27 using namespace lldb; 28 using namespace lldb_private; 29 30 //------------------------------------------------------------------------- 31 // CommandObjectProcessLaunch 32 //------------------------------------------------------------------------- 33 #pragma mark CommandObjectProjectLaunch 34 class CommandObjectProcessLaunch : public CommandObject 35 { 36 public: 37 38 // class CommandOptions : public Options 39 // { 40 // public: 41 // 42 // CommandOptions (CommandInterpreter &interpreter) : 43 // Options(interpreter) 44 // { 45 // // Keep default values of all options in one place: OptionParsingStarting () 46 // OptionParsingStarting (); 47 // } 48 // 49 // ~CommandOptions () 50 // { 51 // } 52 // 53 // Error 54 // SetOptionValue (uint32_t option_idx, const char *option_arg) 55 // { 56 // Error error; 57 // char short_option = (char) m_getopt_table[option_idx].val; 58 // 59 // switch (short_option) 60 // { 61 // case 's': stop_at_entry = true; break; 62 // case 'e': stderr_path.assign (option_arg); break; 63 // case 'i': stdin_path.assign (option_arg); break; 64 // case 'o': stdout_path.assign (option_arg); break; 65 // case 'p': plugin_name.assign (option_arg); break; 66 // case 'n': no_stdio = true; break; 67 // case 'w': working_dir.assign (option_arg); break; 68 // case 't': 69 // if (option_arg && option_arg[0]) 70 // tty_name.assign (option_arg); 71 // in_new_tty = true; 72 // break; 73 // default: 74 // error.SetErrorStringWithFormat("invalid short option character '%c'", short_option); 75 // break; 76 // 77 // } 78 // return error; 79 // } 80 // 81 // void 82 // OptionParsingStarting () 83 // { 84 // stop_at_entry = false; 85 // in_new_tty = false; 86 // tty_name.clear(); 87 // stdin_path.clear(); 88 // stdout_path.clear(); 89 // stderr_path.clear(); 90 // plugin_name.clear(); 91 // working_dir.clear(); 92 // no_stdio = false; 93 // } 94 // 95 // const OptionDefinition* 96 // GetDefinitions () 97 // { 98 // return g_option_table; 99 // } 100 // 101 // // Options table: Required for subclasses of Options. 102 // 103 // static OptionDefinition g_option_table[]; 104 // 105 // // Instance variables to hold the values for command options. 106 // 107 // bool stop_at_entry; 108 // bool in_new_tty; 109 // bool no_stdio; 110 // std::string tty_name; 111 // std::string stderr_path; 112 // std::string stdin_path; 113 // std::string stdout_path; 114 // std::string plugin_name; 115 // std::string working_dir; 116 // 117 // }; 118 119 CommandObjectProcessLaunch (CommandInterpreter &interpreter) : 120 CommandObject (interpreter, 121 "process launch", 122 "Launch the executable in the debugger.", 123 NULL), 124 m_options (interpreter) 125 { 126 CommandArgumentEntry arg; 127 CommandArgumentData run_args_arg; 128 129 // Define the first (and only) variant of this arg. 130 run_args_arg.arg_type = eArgTypeRunArgs; 131 run_args_arg.arg_repetition = eArgRepeatOptional; 132 133 // There is only one variant this argument could be; put it into the argument entry. 134 arg.push_back (run_args_arg); 135 136 // Push the data for the first argument into the m_arguments vector. 137 m_arguments.push_back (arg); 138 } 139 140 141 ~CommandObjectProcessLaunch () 142 { 143 } 144 145 Options * 146 GetOptions () 147 { 148 return &m_options; 149 } 150 151 bool 152 Execute (Args& launch_args, CommandReturnObject &result) 153 { 154 Debugger &debugger = m_interpreter.GetDebugger(); 155 Target *target = debugger.GetSelectedTarget().get(); 156 Error error; 157 158 if (target == NULL) 159 { 160 result.AppendError ("invalid target, create a debug target using the 'target create' command"); 161 result.SetStatus (eReturnStatusFailed); 162 return false; 163 } 164 // If our listener is NULL, users aren't allows to launch 165 char filename[PATH_MAX]; 166 const Module *exe_module = target->GetExecutableModulePointer(); 167 168 if (exe_module == NULL) 169 { 170 result.AppendError ("no file in target, create a debug target using the 'target create' command"); 171 result.SetStatus (eReturnStatusFailed); 172 return false; 173 } 174 175 exe_module->GetFileSpec().GetPath (filename, sizeof(filename)); 176 177 const bool add_exe_file_as_first_arg = true; 178 m_options.launch_info.SetExecutableFile(exe_module->GetFileSpec(), add_exe_file_as_first_arg); 179 180 StateType state = eStateInvalid; 181 Process *process = m_interpreter.GetExecutionContext().GetProcessPtr(); 182 if (process) 183 { 184 state = process->GetState(); 185 186 if (process->IsAlive() && state != eStateConnected) 187 { 188 char message[1024]; 189 if (process->GetState() == eStateAttaching) 190 ::strncpy (message, "There is a pending attach, abort it and launch a new process?", sizeof(message)); 191 else 192 ::strncpy (message, "There is a running process, kill it and restart?", sizeof(message)); 193 194 if (!m_interpreter.Confirm (message, true)) 195 { 196 result.SetStatus (eReturnStatusFailed); 197 return false; 198 } 199 else 200 { 201 Error destroy_error (process->Destroy()); 202 if (destroy_error.Success()) 203 { 204 result.SetStatus (eReturnStatusSuccessFinishResult); 205 } 206 else 207 { 208 result.AppendErrorWithFormat ("Failed to kill process: %s\n", destroy_error.AsCString()); 209 result.SetStatus (eReturnStatusFailed); 210 } 211 } 212 } 213 } 214 215 if (launch_args.GetArgumentCount() > 0) 216 { 217 m_options.launch_info.GetArguments().AppendArguments (launch_args); 218 } 219 220 221 if (state == eStateConnected) 222 { 223 if (m_options.launch_info.GetFlags().Test (eLaunchFlagLaunchInTTY)) 224 { 225 result.AppendWarning("can't launch in tty when launching through a remote connection"); 226 m_options.launch_info.GetFlags().Clear (eLaunchFlagLaunchInTTY); 227 } 228 } 229 else 230 { 231 const char *plugin_name = m_options.launch_info.GetProcessPluginName(); 232 233 if (m_options.launch_info.GetFlags().Test (eLaunchFlagLaunchInTTY)) 234 { 235 process = target->GetPlatform()->DebugProcess (m_options.launch_info, 236 debugger, 237 target, 238 debugger.GetListener(), 239 error).get(); 240 } 241 else 242 { 243 process = target->CreateProcess (debugger.GetListener(), plugin_name).get(); 244 245 if (launch_args.GetArgumentCount() == 0) 246 { 247 const Args &process_args = target->GetRunArguments(); 248 if (process_args.GetArgumentCount() > 0) 249 m_options.launch_info.GetArguments().AppendArguments (process_args); 250 } 251 252 Args environment; 253 target->GetEnvironmentAsArgs (environment); 254 m_options.launch_info.GetEnvironmentEntries ().AppendArguments (environment); 255 256 if (target->GetDisableASLR()) 257 m_options.launch_info.GetFlags().Set (eLaunchFlagDisableASLR); 258 259 if (m_options.launch_info.GetNumFileActions() == 0) 260 { 261 // Only use the settings value if the user hasn't specified any options that would override it. 262 if (target->GetDisableSTDIO()) 263 m_options.launch_info.GetFlags().Set (eLaunchFlagDisableSTDIO); 264 265 const char *path; 266 path = target->GetStandardErrorPath(); 267 if (path) 268 { 269 ProcessLaunchInfo::FileAction file_action; 270 const bool read = true; 271 const bool write = true; 272 if (file_action.Open(STDERR_FILENO, path, read, write)) 273 m_options.launch_info.AppendFileAction (file_action); 274 } 275 path = target->GetStandardInputPath(); 276 if (path) 277 { 278 ProcessLaunchInfo::FileAction file_action; 279 const bool read = true; 280 const bool write = false; 281 if (file_action.Open(STDIN_FILENO, path, read, write)) 282 m_options.launch_info.AppendFileAction (file_action); 283 } 284 285 path = target->GetStandardOutputPath(); 286 if (path) 287 { 288 ProcessLaunchInfo::FileAction file_action; 289 const bool read = false; 290 const bool write = true; 291 if (file_action.Open(STDOUT_FILENO, path, read, write)) 292 m_options.launch_info.AppendFileAction (file_action); 293 } 294 } 295 error = process->Launch (m_options.launch_info); 296 } 297 if (process == NULL) 298 { 299 result.AppendErrorWithFormat ("Failed to find a process plugin for executable.\n"); 300 result.SetStatus (eReturnStatusFailed); 301 return false; 302 } 303 } 304 305 if (error.Success()) 306 { 307 const char *archname = exe_module->GetArchitecture().GetArchitectureName(); 308 309 result.AppendMessageWithFormat ("Process %llu launched: '%s' (%s)\n", process->GetID(), filename, archname); 310 result.SetDidChangeProcessState (true); 311 if (m_options.launch_info.GetFlags().Test(eLaunchFlagStopAtEntry) == false) 312 { 313 result.SetStatus (eReturnStatusSuccessContinuingNoResult); 314 StateType state = process->WaitForProcessToStop (NULL); 315 316 if (state == eStateStopped) 317 { 318 error = process->Resume(); 319 if (error.Success()) 320 { 321 bool synchronous_execution = m_interpreter.GetSynchronous (); 322 if (synchronous_execution) 323 { 324 state = process->WaitForProcessToStop (NULL); 325 if (!StateIsStoppedState(state)) 326 { 327 result.AppendErrorWithFormat ("Process isn't stopped: %s", StateAsCString(state)); 328 } 329 result.SetDidChangeProcessState (true); 330 result.SetStatus (eReturnStatusSuccessFinishResult); 331 } 332 else 333 { 334 result.SetStatus (eReturnStatusSuccessContinuingNoResult); 335 } 336 } 337 else 338 { 339 result.AppendErrorWithFormat ("Process resume at entry point failed: %s", error.AsCString()); 340 result.SetStatus (eReturnStatusFailed); 341 } 342 } 343 else 344 { 345 result.AppendErrorWithFormat ("Initial process state wasn't stopped: %s", StateAsCString(state)); 346 result.SetStatus (eReturnStatusFailed); 347 } 348 } 349 } 350 else 351 { 352 result.AppendErrorWithFormat ("process launch failed: %s", error.AsCString()); 353 result.SetStatus (eReturnStatusFailed); 354 } 355 356 return result.Succeeded(); 357 } 358 359 virtual const char *GetRepeatCommand (Args ¤t_command_args, uint32_t index) 360 { 361 // No repeat for "process launch"... 362 return ""; 363 } 364 365 protected: 366 ProcessLaunchCommandOptions m_options; 367 }; 368 369 370 //#define SET1 LLDB_OPT_SET_1 371 //#define SET2 LLDB_OPT_SET_2 372 //#define SET3 LLDB_OPT_SET_3 373 // 374 //OptionDefinition 375 //CommandObjectProcessLaunch::CommandOptions::g_option_table[] = 376 //{ 377 //{ SET1 | SET2 | SET3, false, "stop-at-entry", 's', no_argument, NULL, 0, eArgTypeNone, "Stop at the entry point of the program when launching a process."}, 378 //{ SET1 , false, "stdin", 'i', required_argument, NULL, 0, eArgTypePath, "Redirect stdin for the process to <path>."}, 379 //{ SET1 , false, "stdout", 'o', required_argument, NULL, 0, eArgTypePath, "Redirect stdout for the process to <path>."}, 380 //{ SET1 , false, "stderr", 'e', required_argument, NULL, 0, eArgTypePath, "Redirect stderr for the process to <path>."}, 381 //{ SET1 | SET2 | SET3, false, "plugin", 'p', required_argument, NULL, 0, eArgTypePlugin, "Name of the process plugin you want to use."}, 382 //{ SET2 , false, "tty", 't', optional_argument, NULL, 0, eArgTypePath, "Start the process in a terminal. If <path> is specified, look for a terminal whose name contains <path>, else start the process in a new terminal."}, 383 //{ SET3, false, "no-stdio", 'n', no_argument, NULL, 0, eArgTypeNone, "Do not set up for terminal I/O to go to running process."}, 384 //{ SET1 | SET2 | SET3, false, "working-dir", 'w', required_argument, NULL, 0, eArgTypePath, "Set the current working directory to <path> when running the inferior."}, 385 //{ 0, false, NULL, 0, 0, NULL, 0, eArgTypeNone, NULL } 386 //}; 387 // 388 //#undef SET1 389 //#undef SET2 390 //#undef SET3 391 392 //------------------------------------------------------------------------- 393 // CommandObjectProcessAttach 394 //------------------------------------------------------------------------- 395 #pragma mark CommandObjectProcessAttach 396 class CommandObjectProcessAttach : public CommandObject 397 { 398 public: 399 400 class CommandOptions : public Options 401 { 402 public: 403 404 CommandOptions (CommandInterpreter &interpreter) : 405 Options(interpreter) 406 { 407 // Keep default values of all options in one place: OptionParsingStarting () 408 OptionParsingStarting (); 409 } 410 411 ~CommandOptions () 412 { 413 } 414 415 Error 416 SetOptionValue (uint32_t option_idx, const char *option_arg) 417 { 418 Error error; 419 char short_option = (char) m_getopt_table[option_idx].val; 420 bool success = false; 421 switch (short_option) 422 { 423 case 'p': 424 pid = Args::StringToUInt32 (option_arg, LLDB_INVALID_PROCESS_ID, 0, &success); 425 if (!success || pid == LLDB_INVALID_PROCESS_ID) 426 { 427 error.SetErrorStringWithFormat("invalid process ID '%s'", option_arg); 428 } 429 break; 430 431 case 'P': 432 plugin_name = option_arg; 433 break; 434 435 case 'n': 436 name.assign(option_arg); 437 break; 438 439 case 'w': 440 waitfor = true; 441 break; 442 443 default: 444 error.SetErrorStringWithFormat("invalid short option character '%c'", short_option); 445 break; 446 } 447 return error; 448 } 449 450 void 451 OptionParsingStarting () 452 { 453 pid = LLDB_INVALID_PROCESS_ID; 454 name.clear(); 455 waitfor = false; 456 } 457 458 const OptionDefinition* 459 GetDefinitions () 460 { 461 return g_option_table; 462 } 463 464 virtual bool 465 HandleOptionArgumentCompletion (Args &input, 466 int cursor_index, 467 int char_pos, 468 OptionElementVector &opt_element_vector, 469 int opt_element_index, 470 int match_start_point, 471 int max_return_elements, 472 bool &word_complete, 473 StringList &matches) 474 { 475 int opt_arg_pos = opt_element_vector[opt_element_index].opt_arg_pos; 476 int opt_defs_index = opt_element_vector[opt_element_index].opt_defs_index; 477 478 // We are only completing the name option for now... 479 480 const OptionDefinition *opt_defs = GetDefinitions(); 481 if (opt_defs[opt_defs_index].short_option == 'n') 482 { 483 // Are we in the name? 484 485 // Look to see if there is a -P argument provided, and if so use that plugin, otherwise 486 // use the default plugin. 487 488 const char *partial_name = NULL; 489 partial_name = input.GetArgumentAtIndex(opt_arg_pos); 490 491 PlatformSP platform_sp (m_interpreter.GetPlatform (true)); 492 if (platform_sp) 493 { 494 ProcessInstanceInfoList process_infos; 495 ProcessInstanceInfoMatch match_info; 496 if (partial_name) 497 { 498 match_info.GetProcessInfo().SetName(partial_name); 499 match_info.SetNameMatchType(eNameMatchStartsWith); 500 } 501 platform_sp->FindProcesses (match_info, process_infos); 502 const uint32_t num_matches = process_infos.GetSize(); 503 if (num_matches > 0) 504 { 505 for (uint32_t i=0; i<num_matches; ++i) 506 { 507 matches.AppendString (process_infos.GetProcessNameAtIndex(i), 508 process_infos.GetProcessNameLengthAtIndex(i)); 509 } 510 } 511 } 512 } 513 514 return false; 515 } 516 517 // Options table: Required for subclasses of Options. 518 519 static OptionDefinition g_option_table[]; 520 521 // Instance variables to hold the values for command options. 522 523 lldb::pid_t pid; 524 std::string plugin_name; 525 std::string name; 526 bool waitfor; 527 }; 528 529 CommandObjectProcessAttach (CommandInterpreter &interpreter) : 530 CommandObject (interpreter, 531 "process attach", 532 "Attach to a process.", 533 "process attach <cmd-options>"), 534 m_options (interpreter) 535 { 536 } 537 538 ~CommandObjectProcessAttach () 539 { 540 } 541 542 bool 543 Execute (Args& command, 544 CommandReturnObject &result) 545 { 546 Target *target = m_interpreter.GetDebugger().GetSelectedTarget().get(); 547 // N.B. The attach should be synchronous. It doesn't help much to get the prompt back between initiating the attach 548 // and the target actually stopping. So even if the interpreter is set to be asynchronous, we wait for the stop 549 // ourselves here. 550 551 Process *process = m_interpreter.GetExecutionContext().GetProcessPtr(); 552 StateType state = eStateInvalid; 553 if (process) 554 { 555 state = process->GetState(); 556 if (process->IsAlive() && state != eStateConnected) 557 { 558 result.AppendErrorWithFormat ("Process %llu is currently being debugged, kill the process before attaching.\n", 559 process->GetID()); 560 result.SetStatus (eReturnStatusFailed); 561 return false; 562 } 563 } 564 565 if (target == NULL) 566 { 567 // If there isn't a current target create one. 568 TargetSP new_target_sp; 569 FileSpec emptyFileSpec; 570 Error error; 571 572 error = m_interpreter.GetDebugger().GetTargetList().CreateTarget (m_interpreter.GetDebugger(), 573 emptyFileSpec, 574 NULL, 575 false, 576 NULL, // No platform options 577 new_target_sp); 578 target = new_target_sp.get(); 579 if (target == NULL || error.Fail()) 580 { 581 result.AppendError(error.AsCString("Error creating target")); 582 return false; 583 } 584 m_interpreter.GetDebugger().GetTargetList().SetSelectedTarget(target); 585 } 586 587 // Record the old executable module, we want to issue a warning if the process of attaching changed the 588 // current executable (like somebody said "file foo" then attached to a PID whose executable was bar.) 589 590 ModuleSP old_exec_module_sp = target->GetExecutableModule(); 591 ArchSpec old_arch_spec = target->GetArchitecture(); 592 593 if (command.GetArgumentCount()) 594 { 595 result.AppendErrorWithFormat("Invalid arguments for '%s'.\nUsage: %s\n", m_cmd_name.c_str(), m_cmd_syntax.c_str()); 596 result.SetStatus (eReturnStatusFailed); 597 } 598 else 599 { 600 if (state != eStateConnected) 601 { 602 const char *plugin_name = NULL; 603 604 if (!m_options.plugin_name.empty()) 605 plugin_name = m_options.plugin_name.c_str(); 606 607 process = target->CreateProcess (m_interpreter.GetDebugger().GetListener(), plugin_name).get(); 608 } 609 610 if (process) 611 { 612 Error error; 613 int attach_pid = m_options.pid; 614 615 const char *wait_name = NULL; 616 617 if (m_options.name.empty()) 618 { 619 if (old_exec_module_sp) 620 { 621 wait_name = old_exec_module_sp->GetFileSpec().GetFilename().AsCString(); 622 } 623 } 624 else 625 { 626 wait_name = m_options.name.c_str(); 627 } 628 629 // If we are waiting for a process with this name to show up, do that first. 630 if (m_options.waitfor) 631 { 632 633 if (wait_name == NULL) 634 { 635 result.AppendError("Invalid arguments: must have a file loaded or supply a process name with the waitfor option.\n"); 636 result.SetStatus (eReturnStatusFailed); 637 return false; 638 } 639 640 result.AppendMessageWithFormat("Waiting to attach to a process named \"%s\".\n", wait_name); 641 error = process->Attach (wait_name, m_options.waitfor); 642 if (error.Success()) 643 { 644 result.SetStatus (eReturnStatusSuccessContinuingNoResult); 645 } 646 else 647 { 648 result.AppendErrorWithFormat ("Waiting for a process to launch named '%s': %s\n", 649 wait_name, 650 error.AsCString()); 651 result.SetStatus (eReturnStatusFailed); 652 return false; 653 } 654 // If we're synchronous, wait for the stopped event and report that. 655 // Otherwise just return. 656 // FIXME: in the async case it will now be possible to get to the command 657 // interpreter with a state eStateAttaching. Make sure we handle that correctly. 658 StateType state = process->WaitForProcessToStop (NULL); 659 660 result.SetDidChangeProcessState (true); 661 result.AppendMessageWithFormat ("Process %llu %s\n", process->GetID(), StateAsCString (state)); 662 result.SetStatus (eReturnStatusSuccessFinishNoResult); 663 } 664 else 665 { 666 // If the process was specified by name look it up, so we can warn if there are multiple 667 // processes with this pid. 668 669 if (attach_pid == LLDB_INVALID_PROCESS_ID && wait_name != NULL) 670 { 671 ProcessInstanceInfoList process_infos; 672 PlatformSP platform_sp (m_interpreter.GetPlatform (true)); 673 if (platform_sp) 674 { 675 ProcessInstanceInfoMatch match_info (wait_name, eNameMatchEquals); 676 platform_sp->FindProcesses (match_info, process_infos); 677 } 678 if (process_infos.GetSize() > 1) 679 { 680 result.AppendErrorWithFormat("More than one process named %s\n", wait_name); 681 result.SetStatus (eReturnStatusFailed); 682 return false; 683 } 684 else if (process_infos.GetSize() == 0) 685 { 686 result.AppendErrorWithFormat("Could not find a process named %s\n", wait_name); 687 result.SetStatus (eReturnStatusFailed); 688 return false; 689 } 690 else 691 { 692 attach_pid = process_infos.GetProcessIDAtIndex (0); 693 } 694 } 695 696 if (attach_pid != LLDB_INVALID_PROCESS_ID) 697 { 698 error = process->Attach (attach_pid); 699 if (error.Success()) 700 { 701 result.SetStatus (eReturnStatusSuccessContinuingNoResult); 702 } 703 else 704 { 705 result.AppendErrorWithFormat ("Attaching to process %i failed: %s.\n", 706 attach_pid, 707 error.AsCString()); 708 result.SetStatus (eReturnStatusFailed); 709 } 710 StateType state = process->WaitForProcessToStop (NULL); 711 712 result.SetDidChangeProcessState (true); 713 result.AppendMessageWithFormat ("Process %llu %s\n", process->GetID(), StateAsCString (state)); 714 result.SetStatus (eReturnStatusSuccessFinishNoResult); 715 } 716 else 717 { 718 result.AppendErrorWithFormat ("No PID specified for attach\n"); 719 result.SetStatus (eReturnStatusFailed); 720 721 } 722 } 723 } 724 } 725 726 if (result.Succeeded()) 727 { 728 // Okay, we're done. Last step is to warn if the executable module has changed: 729 char new_path[PATH_MAX]; 730 ModuleSP new_exec_module_sp (target->GetExecutableModule()); 731 if (!old_exec_module_sp) 732 { 733 // We might not have a module if we attached to a raw pid... 734 if (new_exec_module_sp) 735 { 736 new_exec_module_sp->GetFileSpec().GetPath(new_path, PATH_MAX); 737 result.AppendMessageWithFormat("Executable module set to \"%s\".\n", new_path); 738 } 739 } 740 else if (old_exec_module_sp->GetFileSpec() != new_exec_module_sp->GetFileSpec()) 741 { 742 char old_path[PATH_MAX]; 743 744 old_exec_module_sp->GetFileSpec().GetPath (old_path, PATH_MAX); 745 new_exec_module_sp->GetFileSpec().GetPath (new_path, PATH_MAX); 746 747 result.AppendWarningWithFormat("Executable module changed from \"%s\" to \"%s\".\n", 748 old_path, new_path); 749 } 750 751 if (!old_arch_spec.IsValid()) 752 { 753 result.AppendMessageWithFormat ("Architecture set to: %s.\n", target->GetArchitecture().GetArchitectureName()); 754 } 755 else if (old_arch_spec != target->GetArchitecture()) 756 { 757 result.AppendWarningWithFormat("Architecture changed from %s to %s.\n", 758 old_arch_spec.GetArchitectureName(), target->GetArchitecture().GetArchitectureName()); 759 } 760 } 761 return result.Succeeded(); 762 } 763 764 Options * 765 GetOptions () 766 { 767 return &m_options; 768 } 769 770 protected: 771 772 CommandOptions m_options; 773 }; 774 775 776 OptionDefinition 777 CommandObjectProcessAttach::CommandOptions::g_option_table[] = 778 { 779 { LLDB_OPT_SET_ALL, false, "plugin", 'P', required_argument, NULL, 0, eArgTypePlugin, "Name of the process plugin you want to use."}, 780 { LLDB_OPT_SET_1, false, "pid", 'p', required_argument, NULL, 0, eArgTypePid, "The process ID of an existing process to attach to."}, 781 { LLDB_OPT_SET_2, false, "name", 'n', required_argument, NULL, 0, eArgTypeProcessName, "The name of the process to attach to."}, 782 { LLDB_OPT_SET_2, false, "waitfor",'w', no_argument, NULL, 0, eArgTypeNone, "Wait for the the process with <process-name> to launch."}, 783 { 0, false, NULL, 0, 0, NULL, 0, eArgTypeNone, NULL } 784 }; 785 786 //------------------------------------------------------------------------- 787 // CommandObjectProcessContinue 788 //------------------------------------------------------------------------- 789 #pragma mark CommandObjectProcessContinue 790 791 class CommandObjectProcessContinue : public CommandObject 792 { 793 public: 794 795 CommandObjectProcessContinue (CommandInterpreter &interpreter) : 796 CommandObject (interpreter, 797 "process continue", 798 "Continue execution of all threads in the current process.", 799 "process continue", 800 eFlagProcessMustBeLaunched | eFlagProcessMustBePaused) 801 { 802 } 803 804 805 ~CommandObjectProcessContinue () 806 { 807 } 808 809 bool 810 Execute (Args& command, 811 CommandReturnObject &result) 812 { 813 Process *process = m_interpreter.GetExecutionContext().GetProcessPtr(); 814 bool synchronous_execution = m_interpreter.GetSynchronous (); 815 816 if (process == NULL) 817 { 818 result.AppendError ("no process to continue"); 819 result.SetStatus (eReturnStatusFailed); 820 return false; 821 } 822 823 StateType state = process->GetState(); 824 if (state == eStateStopped) 825 { 826 if (command.GetArgumentCount() != 0) 827 { 828 result.AppendErrorWithFormat ("The '%s' command does not take any arguments.\n", m_cmd_name.c_str()); 829 result.SetStatus (eReturnStatusFailed); 830 return false; 831 } 832 833 const uint32_t num_threads = process->GetThreadList().GetSize(); 834 835 // Set the actions that the threads should each take when resuming 836 for (uint32_t idx=0; idx<num_threads; ++idx) 837 { 838 process->GetThreadList().GetThreadAtIndex(idx)->SetResumeState (eStateRunning); 839 } 840 841 Error error(process->Resume()); 842 if (error.Success()) 843 { 844 result.AppendMessageWithFormat ("Process %llu resuming\n", process->GetID()); 845 if (synchronous_execution) 846 { 847 state = process->WaitForProcessToStop (NULL); 848 849 result.SetDidChangeProcessState (true); 850 result.AppendMessageWithFormat ("Process %llu %s\n", process->GetID(), StateAsCString (state)); 851 result.SetStatus (eReturnStatusSuccessFinishNoResult); 852 } 853 else 854 { 855 result.SetStatus (eReturnStatusSuccessContinuingNoResult); 856 } 857 } 858 else 859 { 860 result.AppendErrorWithFormat("Failed to resume process: %s.\n", error.AsCString()); 861 result.SetStatus (eReturnStatusFailed); 862 } 863 } 864 else 865 { 866 result.AppendErrorWithFormat ("Process cannot be continued from its current state (%s).\n", 867 StateAsCString(state)); 868 result.SetStatus (eReturnStatusFailed); 869 } 870 return result.Succeeded(); 871 } 872 }; 873 874 //------------------------------------------------------------------------- 875 // CommandObjectProcessDetach 876 //------------------------------------------------------------------------- 877 #pragma mark CommandObjectProcessDetach 878 879 class CommandObjectProcessDetach : public CommandObject 880 { 881 public: 882 883 CommandObjectProcessDetach (CommandInterpreter &interpreter) : 884 CommandObject (interpreter, 885 "process detach", 886 "Detach from the current process being debugged.", 887 "process detach", 888 eFlagProcessMustBeLaunched) 889 { 890 } 891 892 ~CommandObjectProcessDetach () 893 { 894 } 895 896 bool 897 Execute (Args& command, 898 CommandReturnObject &result) 899 { 900 Process *process = m_interpreter.GetExecutionContext().GetProcessPtr(); 901 if (process == NULL) 902 { 903 result.AppendError ("must have a valid process in order to detach"); 904 result.SetStatus (eReturnStatusFailed); 905 return false; 906 } 907 908 result.AppendMessageWithFormat ("Detaching from process %llu\n", process->GetID()); 909 Error error (process->Detach()); 910 if (error.Success()) 911 { 912 result.SetStatus (eReturnStatusSuccessFinishResult); 913 } 914 else 915 { 916 result.AppendErrorWithFormat ("Detach failed: %s\n", error.AsCString()); 917 result.SetStatus (eReturnStatusFailed); 918 return false; 919 } 920 return result.Succeeded(); 921 } 922 }; 923 924 //------------------------------------------------------------------------- 925 // CommandObjectProcessConnect 926 //------------------------------------------------------------------------- 927 #pragma mark CommandObjectProcessConnect 928 929 class CommandObjectProcessConnect : public CommandObject 930 { 931 public: 932 933 class CommandOptions : public Options 934 { 935 public: 936 937 CommandOptions (CommandInterpreter &interpreter) : 938 Options(interpreter) 939 { 940 // Keep default values of all options in one place: OptionParsingStarting () 941 OptionParsingStarting (); 942 } 943 944 ~CommandOptions () 945 { 946 } 947 948 Error 949 SetOptionValue (uint32_t option_idx, const char *option_arg) 950 { 951 Error error; 952 char short_option = (char) m_getopt_table[option_idx].val; 953 954 switch (short_option) 955 { 956 case 'p': 957 plugin_name.assign (option_arg); 958 break; 959 960 default: 961 error.SetErrorStringWithFormat("invalid short option character '%c'", short_option); 962 break; 963 } 964 return error; 965 } 966 967 void 968 OptionParsingStarting () 969 { 970 plugin_name.clear(); 971 } 972 973 const OptionDefinition* 974 GetDefinitions () 975 { 976 return g_option_table; 977 } 978 979 // Options table: Required for subclasses of Options. 980 981 static OptionDefinition g_option_table[]; 982 983 // Instance variables to hold the values for command options. 984 985 std::string plugin_name; 986 }; 987 988 CommandObjectProcessConnect (CommandInterpreter &interpreter) : 989 CommandObject (interpreter, 990 "process connect", 991 "Connect to a remote debug service.", 992 "process connect <remote-url>", 993 0), 994 m_options (interpreter) 995 { 996 } 997 998 ~CommandObjectProcessConnect () 999 { 1000 } 1001 1002 1003 bool 1004 Execute (Args& command, 1005 CommandReturnObject &result) 1006 { 1007 1008 TargetSP target_sp (m_interpreter.GetDebugger().GetSelectedTarget()); 1009 Error error; 1010 Process *process = m_interpreter.GetExecutionContext().GetProcessPtr(); 1011 if (process) 1012 { 1013 if (process->IsAlive()) 1014 { 1015 result.AppendErrorWithFormat ("Process %llu is currently being debugged, kill the process before connecting.\n", 1016 process->GetID()); 1017 result.SetStatus (eReturnStatusFailed); 1018 return false; 1019 } 1020 } 1021 1022 if (!target_sp) 1023 { 1024 // If there isn't a current target create one. 1025 FileSpec emptyFileSpec; 1026 1027 error = m_interpreter.GetDebugger().GetTargetList().CreateTarget (m_interpreter.GetDebugger(), 1028 emptyFileSpec, 1029 NULL, 1030 false, 1031 NULL, // No platform options 1032 target_sp); 1033 if (!target_sp || error.Fail()) 1034 { 1035 result.AppendError(error.AsCString("Error creating target")); 1036 result.SetStatus (eReturnStatusFailed); 1037 return false; 1038 } 1039 m_interpreter.GetDebugger().GetTargetList().SetSelectedTarget(target_sp.get()); 1040 } 1041 1042 if (command.GetArgumentCount() == 1) 1043 { 1044 const char *plugin_name = NULL; 1045 if (!m_options.plugin_name.empty()) 1046 plugin_name = m_options.plugin_name.c_str(); 1047 1048 const char *remote_url = command.GetArgumentAtIndex(0); 1049 process = target_sp->CreateProcess (m_interpreter.GetDebugger().GetListener(), plugin_name).get(); 1050 1051 if (process) 1052 { 1053 error = process->ConnectRemote (remote_url); 1054 1055 if (error.Fail()) 1056 { 1057 result.AppendError(error.AsCString("Remote connect failed")); 1058 result.SetStatus (eReturnStatusFailed); 1059 return false; 1060 } 1061 } 1062 else 1063 { 1064 result.AppendErrorWithFormat ("Unable to find process plug-in for remote URL '%s'.\nPlease specify a process plug-in name with the --plugin option, or specify an object file using the \"file\" command.\n", 1065 m_cmd_name.c_str()); 1066 result.SetStatus (eReturnStatusFailed); 1067 } 1068 } 1069 else 1070 { 1071 result.AppendErrorWithFormat ("'%s' takes exactly one argument:\nUsage: %s\n", 1072 m_cmd_name.c_str(), 1073 m_cmd_syntax.c_str()); 1074 result.SetStatus (eReturnStatusFailed); 1075 } 1076 return result.Succeeded(); 1077 } 1078 1079 Options * 1080 GetOptions () 1081 { 1082 return &m_options; 1083 } 1084 1085 protected: 1086 1087 CommandOptions m_options; 1088 }; 1089 1090 1091 OptionDefinition 1092 CommandObjectProcessConnect::CommandOptions::g_option_table[] = 1093 { 1094 { LLDB_OPT_SET_ALL, false, "plugin", 'p', required_argument, NULL, 0, eArgTypePlugin, "Name of the process plugin you want to use."}, 1095 { 0, false, NULL, 0 , 0, NULL, 0, eArgTypeNone, NULL } 1096 }; 1097 1098 //------------------------------------------------------------------------- 1099 // CommandObjectProcessLoad 1100 //------------------------------------------------------------------------- 1101 #pragma mark CommandObjectProcessLoad 1102 1103 class CommandObjectProcessLoad : public CommandObject 1104 { 1105 public: 1106 1107 CommandObjectProcessLoad (CommandInterpreter &interpreter) : 1108 CommandObject (interpreter, 1109 "process load", 1110 "Load a shared library into the current process.", 1111 "process load <filename> [<filename> ...]", 1112 eFlagProcessMustBeLaunched | eFlagProcessMustBePaused) 1113 { 1114 } 1115 1116 ~CommandObjectProcessLoad () 1117 { 1118 } 1119 1120 bool 1121 Execute (Args& command, 1122 CommandReturnObject &result) 1123 { 1124 Process *process = m_interpreter.GetExecutionContext().GetProcessPtr(); 1125 if (process == NULL) 1126 { 1127 result.AppendError ("must have a valid process in order to load a shared library"); 1128 result.SetStatus (eReturnStatusFailed); 1129 return false; 1130 } 1131 1132 const uint32_t argc = command.GetArgumentCount(); 1133 1134 for (uint32_t i=0; i<argc; ++i) 1135 { 1136 Error error; 1137 const char *image_path = command.GetArgumentAtIndex(i); 1138 FileSpec image_spec (image_path, false); 1139 process->GetTarget().GetPlatform()->ResolveRemotePath(image_spec, image_spec); 1140 uint32_t image_token = process->LoadImage(image_spec, error); 1141 if (image_token != LLDB_INVALID_IMAGE_TOKEN) 1142 { 1143 result.AppendMessageWithFormat ("Loading \"%s\"...ok\nImage %u loaded.\n", image_path, image_token); 1144 result.SetStatus (eReturnStatusSuccessFinishResult); 1145 } 1146 else 1147 { 1148 result.AppendErrorWithFormat ("failed to load '%s': %s", image_path, error.AsCString()); 1149 result.SetStatus (eReturnStatusFailed); 1150 } 1151 } 1152 return result.Succeeded(); 1153 } 1154 }; 1155 1156 1157 //------------------------------------------------------------------------- 1158 // CommandObjectProcessUnload 1159 //------------------------------------------------------------------------- 1160 #pragma mark CommandObjectProcessUnload 1161 1162 class CommandObjectProcessUnload : public CommandObject 1163 { 1164 public: 1165 1166 CommandObjectProcessUnload (CommandInterpreter &interpreter) : 1167 CommandObject (interpreter, 1168 "process unload", 1169 "Unload a shared library from the current process using the index returned by a previous call to \"process load\".", 1170 "process unload <index>", 1171 eFlagProcessMustBeLaunched | eFlagProcessMustBePaused) 1172 { 1173 } 1174 1175 ~CommandObjectProcessUnload () 1176 { 1177 } 1178 1179 bool 1180 Execute (Args& command, 1181 CommandReturnObject &result) 1182 { 1183 Process *process = m_interpreter.GetExecutionContext().GetProcessPtr(); 1184 if (process == NULL) 1185 { 1186 result.AppendError ("must have a valid process in order to load a shared library"); 1187 result.SetStatus (eReturnStatusFailed); 1188 return false; 1189 } 1190 1191 const uint32_t argc = command.GetArgumentCount(); 1192 1193 for (uint32_t i=0; i<argc; ++i) 1194 { 1195 const char *image_token_cstr = command.GetArgumentAtIndex(i); 1196 uint32_t image_token = Args::StringToUInt32(image_token_cstr, LLDB_INVALID_IMAGE_TOKEN, 0); 1197 if (image_token == LLDB_INVALID_IMAGE_TOKEN) 1198 { 1199 result.AppendErrorWithFormat ("invalid image index argument '%s'", image_token_cstr); 1200 result.SetStatus (eReturnStatusFailed); 1201 break; 1202 } 1203 else 1204 { 1205 Error error (process->UnloadImage(image_token)); 1206 if (error.Success()) 1207 { 1208 result.AppendMessageWithFormat ("Unloading shared library with index %u...ok\n", image_token); 1209 result.SetStatus (eReturnStatusSuccessFinishResult); 1210 } 1211 else 1212 { 1213 result.AppendErrorWithFormat ("failed to unload image: %s", error.AsCString()); 1214 result.SetStatus (eReturnStatusFailed); 1215 break; 1216 } 1217 } 1218 } 1219 return result.Succeeded(); 1220 } 1221 }; 1222 1223 //------------------------------------------------------------------------- 1224 // CommandObjectProcessSignal 1225 //------------------------------------------------------------------------- 1226 #pragma mark CommandObjectProcessSignal 1227 1228 class CommandObjectProcessSignal : public CommandObject 1229 { 1230 public: 1231 1232 CommandObjectProcessSignal (CommandInterpreter &interpreter) : 1233 CommandObject (interpreter, 1234 "process signal", 1235 "Send a UNIX signal to the current process being debugged.", 1236 NULL) 1237 { 1238 CommandArgumentEntry arg; 1239 CommandArgumentData signal_arg; 1240 1241 // Define the first (and only) variant of this arg. 1242 signal_arg.arg_type = eArgTypeUnixSignal; 1243 signal_arg.arg_repetition = eArgRepeatPlain; 1244 1245 // There is only one variant this argument could be; put it into the argument entry. 1246 arg.push_back (signal_arg); 1247 1248 // Push the data for the first argument into the m_arguments vector. 1249 m_arguments.push_back (arg); 1250 } 1251 1252 ~CommandObjectProcessSignal () 1253 { 1254 } 1255 1256 bool 1257 Execute (Args& command, 1258 CommandReturnObject &result) 1259 { 1260 Process *process = m_interpreter.GetExecutionContext().GetProcessPtr(); 1261 if (process == NULL) 1262 { 1263 result.AppendError ("no process to signal"); 1264 result.SetStatus (eReturnStatusFailed); 1265 return false; 1266 } 1267 1268 if (command.GetArgumentCount() == 1) 1269 { 1270 int signo = LLDB_INVALID_SIGNAL_NUMBER; 1271 1272 const char *signal_name = command.GetArgumentAtIndex(0); 1273 if (::isxdigit (signal_name[0])) 1274 signo = Args::StringToSInt32(signal_name, LLDB_INVALID_SIGNAL_NUMBER, 0); 1275 else 1276 signo = process->GetUnixSignals().GetSignalNumberFromName (signal_name); 1277 1278 if (signo == LLDB_INVALID_SIGNAL_NUMBER) 1279 { 1280 result.AppendErrorWithFormat ("Invalid signal argument '%s'.\n", command.GetArgumentAtIndex(0)); 1281 result.SetStatus (eReturnStatusFailed); 1282 } 1283 else 1284 { 1285 Error error (process->Signal (signo)); 1286 if (error.Success()) 1287 { 1288 result.SetStatus (eReturnStatusSuccessFinishResult); 1289 } 1290 else 1291 { 1292 result.AppendErrorWithFormat ("Failed to send signal %i: %s\n", signo, error.AsCString()); 1293 result.SetStatus (eReturnStatusFailed); 1294 } 1295 } 1296 } 1297 else 1298 { 1299 result.AppendErrorWithFormat("'%s' takes exactly one signal number argument:\nUsage: %s\n", m_cmd_name.c_str(), 1300 m_cmd_syntax.c_str()); 1301 result.SetStatus (eReturnStatusFailed); 1302 } 1303 return result.Succeeded(); 1304 } 1305 }; 1306 1307 1308 //------------------------------------------------------------------------- 1309 // CommandObjectProcessInterrupt 1310 //------------------------------------------------------------------------- 1311 #pragma mark CommandObjectProcessInterrupt 1312 1313 class CommandObjectProcessInterrupt : public CommandObject 1314 { 1315 public: 1316 1317 1318 CommandObjectProcessInterrupt (CommandInterpreter &interpreter) : 1319 CommandObject (interpreter, 1320 "process interrupt", 1321 "Interrupt the current process being debugged.", 1322 "process interrupt", 1323 eFlagProcessMustBeLaunched) 1324 { 1325 } 1326 1327 ~CommandObjectProcessInterrupt () 1328 { 1329 } 1330 1331 bool 1332 Execute (Args& command, 1333 CommandReturnObject &result) 1334 { 1335 Process *process = m_interpreter.GetExecutionContext().GetProcessPtr(); 1336 if (process == NULL) 1337 { 1338 result.AppendError ("no process to halt"); 1339 result.SetStatus (eReturnStatusFailed); 1340 return false; 1341 } 1342 1343 if (command.GetArgumentCount() == 0) 1344 { 1345 Error error(process->Halt ()); 1346 if (error.Success()) 1347 { 1348 result.SetStatus (eReturnStatusSuccessFinishResult); 1349 1350 // Maybe we should add a "SuspendThreadPlans so we 1351 // can halt, and keep in place all the current thread plans. 1352 process->GetThreadList().DiscardThreadPlans(); 1353 } 1354 else 1355 { 1356 result.AppendErrorWithFormat ("Failed to halt process: %s\n", error.AsCString()); 1357 result.SetStatus (eReturnStatusFailed); 1358 } 1359 } 1360 else 1361 { 1362 result.AppendErrorWithFormat("'%s' takes no arguments:\nUsage: %s\n", 1363 m_cmd_name.c_str(), 1364 m_cmd_syntax.c_str()); 1365 result.SetStatus (eReturnStatusFailed); 1366 } 1367 return result.Succeeded(); 1368 } 1369 }; 1370 1371 //------------------------------------------------------------------------- 1372 // CommandObjectProcessKill 1373 //------------------------------------------------------------------------- 1374 #pragma mark CommandObjectProcessKill 1375 1376 class CommandObjectProcessKill : public CommandObject 1377 { 1378 public: 1379 1380 CommandObjectProcessKill (CommandInterpreter &interpreter) : 1381 CommandObject (interpreter, 1382 "process kill", 1383 "Terminate the current process being debugged.", 1384 "process kill", 1385 eFlagProcessMustBeLaunched) 1386 { 1387 } 1388 1389 ~CommandObjectProcessKill () 1390 { 1391 } 1392 1393 bool 1394 Execute (Args& command, 1395 CommandReturnObject &result) 1396 { 1397 Process *process = m_interpreter.GetExecutionContext().GetProcessPtr(); 1398 if (process == NULL) 1399 { 1400 result.AppendError ("no process to kill"); 1401 result.SetStatus (eReturnStatusFailed); 1402 return false; 1403 } 1404 1405 if (command.GetArgumentCount() == 0) 1406 { 1407 Error error (process->Destroy()); 1408 if (error.Success()) 1409 { 1410 result.SetStatus (eReturnStatusSuccessFinishResult); 1411 } 1412 else 1413 { 1414 result.AppendErrorWithFormat ("Failed to kill process: %s\n", error.AsCString()); 1415 result.SetStatus (eReturnStatusFailed); 1416 } 1417 } 1418 else 1419 { 1420 result.AppendErrorWithFormat("'%s' takes no arguments:\nUsage: %s\n", 1421 m_cmd_name.c_str(), 1422 m_cmd_syntax.c_str()); 1423 result.SetStatus (eReturnStatusFailed); 1424 } 1425 return result.Succeeded(); 1426 } 1427 }; 1428 1429 //------------------------------------------------------------------------- 1430 // CommandObjectProcessStatus 1431 //------------------------------------------------------------------------- 1432 #pragma mark CommandObjectProcessStatus 1433 1434 class CommandObjectProcessStatus : public CommandObject 1435 { 1436 public: 1437 CommandObjectProcessStatus (CommandInterpreter &interpreter) : 1438 CommandObject (interpreter, 1439 "process status", 1440 "Show the current status and location of executing process.", 1441 "process status", 1442 0) 1443 { 1444 } 1445 1446 ~CommandObjectProcessStatus() 1447 { 1448 } 1449 1450 1451 bool 1452 Execute 1453 ( 1454 Args& command, 1455 CommandReturnObject &result 1456 ) 1457 { 1458 Stream &strm = result.GetOutputStream(); 1459 result.SetStatus (eReturnStatusSuccessFinishNoResult); 1460 ExecutionContext exe_ctx(m_interpreter.GetExecutionContext()); 1461 Process *process = exe_ctx.GetProcessPtr(); 1462 if (process) 1463 { 1464 const bool only_threads_with_stop_reason = true; 1465 const uint32_t start_frame = 0; 1466 const uint32_t num_frames = 1; 1467 const uint32_t num_frames_with_source = 1; 1468 process->GetStatus(strm); 1469 process->GetThreadStatus (strm, 1470 only_threads_with_stop_reason, 1471 start_frame, 1472 num_frames, 1473 num_frames_with_source); 1474 1475 } 1476 else 1477 { 1478 result.AppendError ("No process."); 1479 result.SetStatus (eReturnStatusFailed); 1480 } 1481 return result.Succeeded(); 1482 } 1483 }; 1484 1485 //------------------------------------------------------------------------- 1486 // CommandObjectProcessHandle 1487 //------------------------------------------------------------------------- 1488 #pragma mark CommandObjectProcessHandle 1489 1490 class CommandObjectProcessHandle : public CommandObject 1491 { 1492 public: 1493 1494 class CommandOptions : public Options 1495 { 1496 public: 1497 1498 CommandOptions (CommandInterpreter &interpreter) : 1499 Options (interpreter) 1500 { 1501 OptionParsingStarting (); 1502 } 1503 1504 ~CommandOptions () 1505 { 1506 } 1507 1508 Error 1509 SetOptionValue (uint32_t option_idx, const char *option_arg) 1510 { 1511 Error error; 1512 char short_option = (char) m_getopt_table[option_idx].val; 1513 1514 switch (short_option) 1515 { 1516 case 's': 1517 stop = option_arg; 1518 break; 1519 case 'n': 1520 notify = option_arg; 1521 break; 1522 case 'p': 1523 pass = option_arg; 1524 break; 1525 default: 1526 error.SetErrorStringWithFormat("invalid short option character '%c'", short_option); 1527 break; 1528 } 1529 return error; 1530 } 1531 1532 void 1533 OptionParsingStarting () 1534 { 1535 stop.clear(); 1536 notify.clear(); 1537 pass.clear(); 1538 } 1539 1540 const OptionDefinition* 1541 GetDefinitions () 1542 { 1543 return g_option_table; 1544 } 1545 1546 // Options table: Required for subclasses of Options. 1547 1548 static OptionDefinition g_option_table[]; 1549 1550 // Instance variables to hold the values for command options. 1551 1552 std::string stop; 1553 std::string notify; 1554 std::string pass; 1555 }; 1556 1557 1558 CommandObjectProcessHandle (CommandInterpreter &interpreter) : 1559 CommandObject (interpreter, 1560 "process handle", 1561 "Show or update what the process and debugger should do with various signals received from the OS.", 1562 NULL), 1563 m_options (interpreter) 1564 { 1565 SetHelpLong ("If no signals are specified, update them all. If no update option is specified, list the current values.\n"); 1566 CommandArgumentEntry arg; 1567 CommandArgumentData signal_arg; 1568 1569 signal_arg.arg_type = eArgTypeUnixSignal; 1570 signal_arg.arg_repetition = eArgRepeatStar; 1571 1572 arg.push_back (signal_arg); 1573 1574 m_arguments.push_back (arg); 1575 } 1576 1577 ~CommandObjectProcessHandle () 1578 { 1579 } 1580 1581 Options * 1582 GetOptions () 1583 { 1584 return &m_options; 1585 } 1586 1587 bool 1588 VerifyCommandOptionValue (const std::string &option, int &real_value) 1589 { 1590 bool okay = true; 1591 1592 bool success = false; 1593 bool tmp_value = Args::StringToBoolean (option.c_str(), false, &success); 1594 1595 if (success && tmp_value) 1596 real_value = 1; 1597 else if (success && !tmp_value) 1598 real_value = 0; 1599 else 1600 { 1601 // If the value isn't 'true' or 'false', it had better be 0 or 1. 1602 real_value = Args::StringToUInt32 (option.c_str(), 3); 1603 if (real_value != 0 && real_value != 1) 1604 okay = false; 1605 } 1606 1607 return okay; 1608 } 1609 1610 void 1611 PrintSignalHeader (Stream &str) 1612 { 1613 str.Printf ("NAME PASS STOP NOTIFY\n"); 1614 str.Printf ("========== ===== ===== ======\n"); 1615 } 1616 1617 void 1618 PrintSignal (Stream &str, int32_t signo, const char *sig_name, UnixSignals &signals) 1619 { 1620 bool stop; 1621 bool suppress; 1622 bool notify; 1623 1624 str.Printf ("%-10s ", sig_name); 1625 if (signals.GetSignalInfo (signo, suppress, stop, notify)) 1626 { 1627 bool pass = !suppress; 1628 str.Printf ("%s %s %s", 1629 (pass ? "true " : "false"), 1630 (stop ? "true " : "false"), 1631 (notify ? "true " : "false")); 1632 } 1633 str.Printf ("\n"); 1634 } 1635 1636 void 1637 PrintSignalInformation (Stream &str, Args &signal_args, int num_valid_signals, UnixSignals &signals) 1638 { 1639 PrintSignalHeader (str); 1640 1641 if (num_valid_signals > 0) 1642 { 1643 size_t num_args = signal_args.GetArgumentCount(); 1644 for (size_t i = 0; i < num_args; ++i) 1645 { 1646 int32_t signo = signals.GetSignalNumberFromName (signal_args.GetArgumentAtIndex (i)); 1647 if (signo != LLDB_INVALID_SIGNAL_NUMBER) 1648 PrintSignal (str, signo, signal_args.GetArgumentAtIndex (i), signals); 1649 } 1650 } 1651 else // Print info for ALL signals 1652 { 1653 int32_t signo = signals.GetFirstSignalNumber(); 1654 while (signo != LLDB_INVALID_SIGNAL_NUMBER) 1655 { 1656 PrintSignal (str, signo, signals.GetSignalAsCString (signo), signals); 1657 signo = signals.GetNextSignalNumber (signo); 1658 } 1659 } 1660 } 1661 1662 bool 1663 Execute (Args &signal_args, CommandReturnObject &result) 1664 { 1665 TargetSP target_sp = m_interpreter.GetDebugger().GetSelectedTarget(); 1666 1667 if (!target_sp) 1668 { 1669 result.AppendError ("No current target;" 1670 " cannot handle signals until you have a valid target and process.\n"); 1671 result.SetStatus (eReturnStatusFailed); 1672 return false; 1673 } 1674 1675 ProcessSP process_sp = target_sp->GetProcessSP(); 1676 1677 if (!process_sp) 1678 { 1679 result.AppendError ("No current process; cannot handle signals until you have a valid process.\n"); 1680 result.SetStatus (eReturnStatusFailed); 1681 return false; 1682 } 1683 1684 int stop_action = -1; // -1 means leave the current setting alone 1685 int pass_action = -1; // -1 means leave the current setting alone 1686 int notify_action = -1; // -1 means leave the current setting alone 1687 1688 if (! m_options.stop.empty() 1689 && ! VerifyCommandOptionValue (m_options.stop, stop_action)) 1690 { 1691 result.AppendError ("Invalid argument for command option --stop; must be true or false.\n"); 1692 result.SetStatus (eReturnStatusFailed); 1693 return false; 1694 } 1695 1696 if (! m_options.notify.empty() 1697 && ! VerifyCommandOptionValue (m_options.notify, notify_action)) 1698 { 1699 result.AppendError ("Invalid argument for command option --notify; must be true or false.\n"); 1700 result.SetStatus (eReturnStatusFailed); 1701 return false; 1702 } 1703 1704 if (! m_options.pass.empty() 1705 && ! VerifyCommandOptionValue (m_options.pass, pass_action)) 1706 { 1707 result.AppendError ("Invalid argument for command option --pass; must be true or false.\n"); 1708 result.SetStatus (eReturnStatusFailed); 1709 return false; 1710 } 1711 1712 size_t num_args = signal_args.GetArgumentCount(); 1713 UnixSignals &signals = process_sp->GetUnixSignals(); 1714 int num_signals_set = 0; 1715 1716 if (num_args > 0) 1717 { 1718 for (size_t i = 0; i < num_args; ++i) 1719 { 1720 int32_t signo = signals.GetSignalNumberFromName (signal_args.GetArgumentAtIndex (i)); 1721 if (signo != LLDB_INVALID_SIGNAL_NUMBER) 1722 { 1723 // Casting the actions as bools here should be okay, because VerifyCommandOptionValue guarantees 1724 // the value is either 0 or 1. 1725 if (stop_action != -1) 1726 signals.SetShouldStop (signo, (bool) stop_action); 1727 if (pass_action != -1) 1728 { 1729 bool suppress = ! ((bool) pass_action); 1730 signals.SetShouldSuppress (signo, suppress); 1731 } 1732 if (notify_action != -1) 1733 signals.SetShouldNotify (signo, (bool) notify_action); 1734 ++num_signals_set; 1735 } 1736 else 1737 { 1738 result.AppendErrorWithFormat ("Invalid signal name '%s'\n", signal_args.GetArgumentAtIndex (i)); 1739 } 1740 } 1741 } 1742 else 1743 { 1744 // No signal specified, if any command options were specified, update ALL signals. 1745 if ((notify_action != -1) || (stop_action != -1) || (pass_action != -1)) 1746 { 1747 if (m_interpreter.Confirm ("Do you really want to update all the signals?", false)) 1748 { 1749 int32_t signo = signals.GetFirstSignalNumber(); 1750 while (signo != LLDB_INVALID_SIGNAL_NUMBER) 1751 { 1752 if (notify_action != -1) 1753 signals.SetShouldNotify (signo, (bool) notify_action); 1754 if (stop_action != -1) 1755 signals.SetShouldStop (signo, (bool) stop_action); 1756 if (pass_action != -1) 1757 { 1758 bool suppress = ! ((bool) pass_action); 1759 signals.SetShouldSuppress (signo, suppress); 1760 } 1761 signo = signals.GetNextSignalNumber (signo); 1762 } 1763 } 1764 } 1765 } 1766 1767 PrintSignalInformation (result.GetOutputStream(), signal_args, num_signals_set, signals); 1768 1769 if (num_signals_set > 0) 1770 result.SetStatus (eReturnStatusSuccessFinishNoResult); 1771 else 1772 result.SetStatus (eReturnStatusFailed); 1773 1774 return result.Succeeded(); 1775 } 1776 1777 protected: 1778 1779 CommandOptions m_options; 1780 }; 1781 1782 OptionDefinition 1783 CommandObjectProcessHandle::CommandOptions::g_option_table[] = 1784 { 1785 { LLDB_OPT_SET_1, false, "stop", 's', required_argument, NULL, 0, eArgTypeBoolean, "Whether or not the process should be stopped if the signal is received." }, 1786 { LLDB_OPT_SET_1, false, "notify", 'n', required_argument, NULL, 0, eArgTypeBoolean, "Whether or not the debugger should notify the user if the signal is received." }, 1787 { LLDB_OPT_SET_1, false, "pass", 'p', required_argument, NULL, 0, eArgTypeBoolean, "Whether or not the signal should be passed to the process." }, 1788 { 0, false, NULL, 0, 0, NULL, 0, eArgTypeNone, NULL } 1789 }; 1790 1791 //------------------------------------------------------------------------- 1792 // CommandObjectMultiwordProcess 1793 //------------------------------------------------------------------------- 1794 1795 CommandObjectMultiwordProcess::CommandObjectMultiwordProcess (CommandInterpreter &interpreter) : 1796 CommandObjectMultiword (interpreter, 1797 "process", 1798 "A set of commands for operating on a process.", 1799 "process <subcommand> [<subcommand-options>]") 1800 { 1801 LoadSubCommand ("attach", CommandObjectSP (new CommandObjectProcessAttach (interpreter))); 1802 LoadSubCommand ("launch", CommandObjectSP (new CommandObjectProcessLaunch (interpreter))); 1803 LoadSubCommand ("continue", CommandObjectSP (new CommandObjectProcessContinue (interpreter))); 1804 LoadSubCommand ("connect", CommandObjectSP (new CommandObjectProcessConnect (interpreter))); 1805 LoadSubCommand ("detach", CommandObjectSP (new CommandObjectProcessDetach (interpreter))); 1806 LoadSubCommand ("load", CommandObjectSP (new CommandObjectProcessLoad (interpreter))); 1807 LoadSubCommand ("unload", CommandObjectSP (new CommandObjectProcessUnload (interpreter))); 1808 LoadSubCommand ("signal", CommandObjectSP (new CommandObjectProcessSignal (interpreter))); 1809 LoadSubCommand ("handle", CommandObjectSP (new CommandObjectProcessHandle (interpreter))); 1810 LoadSubCommand ("status", CommandObjectSP (new CommandObjectProcessStatus (interpreter))); 1811 LoadSubCommand ("interrupt", CommandObjectSP (new CommandObjectProcessInterrupt (interpreter))); 1812 LoadSubCommand ("kill", CommandObjectSP (new CommandObjectProcessKill (interpreter))); 1813 } 1814 1815 CommandObjectMultiwordProcess::~CommandObjectMultiwordProcess () 1816 { 1817 } 1818 1819