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/Interpreter/CommandInterpreter.h" 20 #include "lldb/Interpreter/CommandReturnObject.h" 21 #include "./CommandObjectThread.h" 22 #include "lldb/Target/Process.h" 23 #include "lldb/Target/Target.h" 24 #include "lldb/Target/Thread.h" 25 26 using namespace lldb; 27 using namespace lldb_private; 28 29 //------------------------------------------------------------------------- 30 // CommandObjectProcessLaunch 31 //------------------------------------------------------------------------- 32 #pragma mark CommandObjectProjectLaunch 33 class CommandObjectProcessLaunch : public CommandObject 34 { 35 public: 36 37 class CommandOptions : public Options 38 { 39 public: 40 41 CommandOptions () : 42 Options() 43 { 44 // Keep default values of all options in one place: ResetOptionValues () 45 ResetOptionValues (); 46 } 47 48 ~CommandOptions () 49 { 50 } 51 52 Error 53 SetOptionValue (int option_idx, const char *option_arg) 54 { 55 Error error; 56 char short_option = (char) m_getopt_table[option_idx].val; 57 58 switch (short_option) 59 { 60 case 's': stop_at_entry = true; break; 61 case 'e': stderr_path.assign (option_arg); break; 62 case 'i': stdin_path.assign (option_arg); break; 63 case 'o': stdout_path.assign (option_arg); break; 64 case 'p': plugin_name.assign (option_arg); break; 65 case 'n': no_stdio = true; break; 66 case 'w': working_dir.assign (option_arg); break; 67 case 't': 68 if (option_arg && option_arg[0]) 69 tty_name.assign (option_arg); 70 in_new_tty = true; 71 break; 72 default: 73 error.SetErrorStringWithFormat("Invalid short option character '%c'.\n", short_option); 74 break; 75 76 } 77 return error; 78 } 79 80 void 81 ResetOptionValues () 82 { 83 Options::ResetOptionValues(); 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 lldb::OptionDefinition* 96 GetDefinitions () 97 { 98 return g_option_table; 99 } 100 101 // Options table: Required for subclasses of Options. 102 103 static lldb::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 { 125 CommandArgumentEntry arg; 126 CommandArgumentData run_args_arg; 127 128 // Define the first (and only) variant of this arg. 129 run_args_arg.arg_type = eArgTypeRunArgs; 130 run_args_arg.arg_repetition = eArgRepeatOptional; 131 132 // There is only one variant this argument could be; put it into the argument entry. 133 arg.push_back (run_args_arg); 134 135 // Push the data for the first argument into the m_arguments vector. 136 m_arguments.push_back (arg); 137 } 138 139 140 ~CommandObjectProcessLaunch () 141 { 142 } 143 144 Options * 145 GetOptions () 146 { 147 return &m_options; 148 } 149 150 bool 151 Execute (Args& launch_args, CommandReturnObject &result) 152 { 153 Target *target = m_interpreter.GetDebugger().GetSelectedTarget().get(); 154 155 if (target == NULL) 156 { 157 result.AppendError ("invalid target, set executable file using 'file' command"); 158 result.SetStatus (eReturnStatusFailed); 159 return false; 160 } 161 162 // If our listener is NULL, users aren't allows to launch 163 char filename[PATH_MAX]; 164 const Module *exe_module = target->GetExecutableModule().get(); 165 exe_module->GetFileSpec().GetPath(filename, sizeof(filename)); 166 167 Process *process = m_interpreter.GetDebugger().GetExecutionContext().process; 168 if (process && process->IsAlive()) 169 { 170 if (!m_interpreter.Confirm ("There is a running process, kill it and restart?", true)) 171 { 172 result.AppendErrorWithFormat ("Process %u is currently being debugged, restart cancelled.\n", 173 process->GetID()); 174 result.SetStatus (eReturnStatusFailed); 175 return false; 176 } 177 else 178 { 179 Error error (process->Destroy()); 180 if (error.Success()) 181 { 182 result.SetStatus (eReturnStatusSuccessFinishResult); 183 } 184 else 185 { 186 result.AppendErrorWithFormat ("Failed to kill process: %s\n", error.AsCString()); 187 result.SetStatus (eReturnStatusFailed); 188 } 189 } 190 } 191 192 const char *plugin_name; 193 if (!m_options.plugin_name.empty()) 194 plugin_name = m_options.plugin_name.c_str(); 195 else 196 plugin_name = NULL; 197 198 process = target->CreateProcess (m_interpreter.GetDebugger().GetListener(), plugin_name).get(); 199 200 if (process == NULL) 201 { 202 result.AppendErrorWithFormat ("Failed to find a process plugin for executable.\n"); 203 result.SetStatus (eReturnStatusFailed); 204 return false; 205 } 206 207 // If no launch args were given on the command line, then use any that 208 // might have been set using the "run-args" set variable. 209 if (launch_args.GetArgumentCount() == 0) 210 { 211 if (process->GetRunArguments().GetArgumentCount() > 0) 212 launch_args = process->GetRunArguments(); 213 } 214 215 if (m_options.in_new_tty) 216 { 217 char exec_file_path[PATH_MAX]; 218 if (exe_module->GetFileSpec().GetPath(exec_file_path, sizeof(exec_file_path))) 219 { 220 launch_args.InsertArgumentAtIndex(0, exec_file_path); 221 } 222 else 223 { 224 result.AppendError("invalid executable"); 225 result.SetStatus (eReturnStatusFailed); 226 return false; 227 } 228 } 229 230 Args environment; 231 232 process->GetEnvironmentAsArgs (environment); 233 234 uint32_t launch_flags = eLaunchFlagNone; 235 236 if (process->GetDisableASLR()) 237 launch_flags |= eLaunchFlagDisableASLR; 238 239 if (m_options.no_stdio) 240 launch_flags |= eLaunchFlagDisableSTDIO; 241 else if (!m_options.in_new_tty 242 && m_options.stdin_path.empty() 243 && m_options.stdout_path.empty() 244 && m_options.stderr_path.empty()) 245 { 246 // Only use the settings value if the user hasn't specified any options that would override it. 247 if (process->GetDisableSTDIO()) 248 launch_flags |= eLaunchFlagDisableSTDIO; 249 } 250 251 const char **inferior_argv = launch_args.GetArgumentCount() ? launch_args.GetConstArgumentVector() : NULL; 252 const char **inferior_envp = environment.GetArgumentCount() ? environment.GetConstArgumentVector() : NULL; 253 254 Error error; 255 const char *working_dir = NULL; 256 if (!m_options.working_dir.empty()) 257 working_dir = m_options.working_dir.c_str(); 258 259 if (m_options.in_new_tty) 260 { 261 262 lldb::pid_t pid = Host::LaunchInNewTerminal (m_options.tty_name.c_str(), 263 inferior_argv, 264 inferior_envp, 265 working_dir, 266 &exe_module->GetArchitecture(), 267 true, 268 process->GetDisableASLR()); 269 270 if (pid != LLDB_INVALID_PROCESS_ID) 271 error = process->Attach (pid); 272 } 273 else 274 { 275 const char * stdin_path = NULL; 276 const char * stdout_path = NULL; 277 const char * stderr_path = NULL; 278 279 // Were any standard input/output/error paths given on the command line? 280 if (m_options.stdin_path.empty() && 281 m_options.stdout_path.empty() && 282 m_options.stderr_path.empty()) 283 { 284 // No standard file handles were given on the command line, check 285 // with the process object in case they were give using "set settings" 286 stdin_path = process->GetStandardInputPath(); 287 stdout_path = process->GetStandardOutputPath(); 288 stderr_path = process->GetStandardErrorPath(); 289 } 290 else 291 { 292 stdin_path = m_options.stdin_path.empty() ? NULL : m_options.stdin_path.c_str(); 293 stdout_path = m_options.stdout_path.empty() ? NULL : m_options.stdout_path.c_str(); 294 stderr_path = m_options.stderr_path.empty() ? NULL : m_options.stderr_path.c_str(); 295 } 296 297 error = process->Launch (inferior_argv, 298 inferior_envp, 299 launch_flags, 300 stdin_path, 301 stdout_path, 302 stderr_path, 303 working_dir); 304 } 305 306 if (error.Success()) 307 { 308 const char *archname = exe_module->GetArchitecture().AsCString(); 309 310 result.AppendMessageWithFormat ("Process %i launched: '%s' (%s)\n", process->GetID(), filename, archname); 311 result.SetDidChangeProcessState (true); 312 if (m_options.stop_at_entry == false) 313 { 314 result.SetStatus (eReturnStatusSuccessContinuingNoResult); 315 StateType state = process->WaitForProcessToStop (NULL); 316 317 if (state == eStateStopped) 318 { 319 error = process->Resume(); 320 if (error.Success()) 321 { 322 bool synchronous_execution = m_interpreter.GetSynchronous (); 323 if (synchronous_execution) 324 { 325 state = process->WaitForProcessToStop (NULL); 326 result.SetDidChangeProcessState (true); 327 result.SetStatus (eReturnStatusSuccessFinishResult); 328 } 329 else 330 { 331 result.SetStatus (eReturnStatusSuccessContinuingNoResult); 332 } 333 } 334 } 335 } 336 } 337 338 return result.Succeeded(); 339 } 340 341 virtual const char *GetRepeatCommand (Args ¤t_command_args, uint32_t index) 342 { 343 // No repeat for "process launch"... 344 return ""; 345 } 346 347 protected: 348 349 CommandOptions m_options; 350 }; 351 352 353 #define SET1 LLDB_OPT_SET_1 354 #define SET2 LLDB_OPT_SET_2 355 #define SET3 LLDB_OPT_SET_3 356 357 lldb::OptionDefinition 358 CommandObjectProcessLaunch::CommandOptions::g_option_table[] = 359 { 360 { 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."}, 361 { SET1 , false, "stdin", 'i', required_argument, NULL, 0, eArgTypePath, "Redirect stdin for the process to <path>."}, 362 { SET1 , false, "stdout", 'o', required_argument, NULL, 0, eArgTypePath, "Redirect stdout for the process to <path>."}, 363 { SET1 , false, "stderr", 'e', required_argument, NULL, 0, eArgTypePath, "Redirect stderr for the process to <path>."}, 364 { SET1 | SET2 | SET3, false, "plugin", 'p', required_argument, NULL, 0, eArgTypePlugin, "Name of the process plugin you want to use."}, 365 { 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."}, 366 { SET3, false, "no-stdio", 'n', no_argument, NULL, 0, eArgTypeNone, "Do not set up for terminal I/O to go to running process."}, 367 { SET1 | SET2 | SET3, false, "working-dir", 'w', required_argument, NULL, 0, eArgTypePath, "Set the current working directory to <path> when running the inferior."}, 368 { 0, false, NULL, 0, 0, NULL, 0, eArgTypeNone, NULL } 369 }; 370 371 #undef SET1 372 #undef SET2 373 #undef SET3 374 375 //------------------------------------------------------------------------- 376 // CommandObjectProcessAttach 377 //------------------------------------------------------------------------- 378 #pragma mark CommandObjectProcessAttach 379 class CommandObjectProcessAttach : public CommandObject 380 { 381 public: 382 383 class CommandOptions : public Options 384 { 385 public: 386 387 CommandOptions () : 388 Options() 389 { 390 // Keep default values of all options in one place: ResetOptionValues () 391 ResetOptionValues (); 392 } 393 394 ~CommandOptions () 395 { 396 } 397 398 Error 399 SetOptionValue (int option_idx, const char *option_arg) 400 { 401 Error error; 402 char short_option = (char) m_getopt_table[option_idx].val; 403 bool success = false; 404 switch (short_option) 405 { 406 case 'p': 407 pid = Args::StringToUInt32 (option_arg, LLDB_INVALID_PROCESS_ID, 0, &success); 408 if (!success || pid == LLDB_INVALID_PROCESS_ID) 409 { 410 error.SetErrorStringWithFormat("Invalid process ID '%s'.\n", option_arg); 411 } 412 break; 413 414 case 'P': 415 plugin_name = option_arg; 416 break; 417 418 case 'n': 419 name.assign(option_arg); 420 break; 421 422 case 'w': 423 waitfor = true; 424 break; 425 426 default: 427 error.SetErrorStringWithFormat("Invalid short option character '%c'.\n", short_option); 428 break; 429 } 430 return error; 431 } 432 433 void 434 ResetOptionValues () 435 { 436 Options::ResetOptionValues(); 437 pid = LLDB_INVALID_PROCESS_ID; 438 name.clear(); 439 waitfor = false; 440 } 441 442 const lldb::OptionDefinition* 443 GetDefinitions () 444 { 445 return g_option_table; 446 } 447 448 virtual bool 449 HandleOptionArgumentCompletion (CommandInterpreter &interpeter, 450 Args &input, 451 int cursor_index, 452 int char_pos, 453 OptionElementVector &opt_element_vector, 454 int opt_element_index, 455 int match_start_point, 456 int max_return_elements, 457 bool &word_complete, 458 StringList &matches) 459 { 460 int opt_arg_pos = opt_element_vector[opt_element_index].opt_arg_pos; 461 int opt_defs_index = opt_element_vector[opt_element_index].opt_defs_index; 462 463 // We are only completing the name option for now... 464 465 const lldb::OptionDefinition *opt_defs = GetDefinitions(); 466 if (opt_defs[opt_defs_index].short_option == 'n') 467 { 468 // Are we in the name? 469 470 // Look to see if there is a -P argument provided, and if so use that plugin, otherwise 471 // use the default plugin. 472 Process *process = interpeter.GetDebugger().GetExecutionContext().process; 473 bool need_to_delete_process = false; 474 475 const char *partial_name = NULL; 476 partial_name = input.GetArgumentAtIndex(opt_arg_pos); 477 478 if (process && process->IsAlive()) 479 return true; 480 481 Target *target = interpeter.GetDebugger().GetSelectedTarget().get(); 482 if (target == NULL) 483 { 484 // No target has been set yet, for now do host completion. Otherwise I don't know how we would 485 // figure out what the right target to use is... 486 std::vector<lldb::pid_t> pids; 487 Host::ListProcessesMatchingName (partial_name, matches, pids); 488 return true; 489 } 490 if (!process) 491 { 492 process = target->CreateProcess (interpeter.GetDebugger().GetListener(), partial_name).get(); 493 need_to_delete_process = true; 494 } 495 496 if (process) 497 { 498 matches.Clear(); 499 std::vector<lldb::pid_t> pids; 500 process->ListProcessesMatchingName (NULL, matches, pids); 501 if (need_to_delete_process) 502 target->DeleteCurrentProcess(); 503 return true; 504 } 505 } 506 507 return false; 508 } 509 510 // Options table: Required for subclasses of Options. 511 512 static lldb::OptionDefinition g_option_table[]; 513 514 // Instance variables to hold the values for command options. 515 516 lldb::pid_t pid; 517 std::string plugin_name; 518 std::string name; 519 bool waitfor; 520 }; 521 522 CommandObjectProcessAttach (CommandInterpreter &interpreter) : 523 CommandObject (interpreter, 524 "process attach", 525 "Attach to a process.", 526 "process attach <cmd-options>") 527 { 528 } 529 530 ~CommandObjectProcessAttach () 531 { 532 } 533 534 bool 535 Execute (Args& command, 536 CommandReturnObject &result) 537 { 538 Target *target = m_interpreter.GetDebugger().GetSelectedTarget().get(); 539 bool synchronous_execution = m_interpreter.GetSynchronous (); 540 541 Process *process = m_interpreter.GetDebugger().GetExecutionContext().process; 542 if (process) 543 { 544 if (process->IsAlive()) 545 { 546 result.AppendErrorWithFormat ("Process %u is currently being debugged, kill the process before attaching.\n", 547 process->GetID()); 548 result.SetStatus (eReturnStatusFailed); 549 return false; 550 } 551 } 552 553 if (target == NULL) 554 { 555 // If there isn't a current target create one. 556 TargetSP new_target_sp; 557 FileSpec emptyFileSpec; 558 ArchSpec emptyArchSpec; 559 Error error; 560 561 error = m_interpreter.GetDebugger().GetTargetList().CreateTarget (m_interpreter.GetDebugger(), 562 emptyFileSpec, 563 emptyArchSpec, 564 NULL, 565 false, 566 new_target_sp); 567 target = new_target_sp.get(); 568 if (target == NULL || error.Fail()) 569 { 570 result.AppendError(error.AsCString("Error creating empty target")); 571 return false; 572 } 573 m_interpreter.GetDebugger().GetTargetList().SetSelectedTarget(target); 574 } 575 576 // Record the old executable module, we want to issue a warning if the process of attaching changed the 577 // current executable (like somebody said "file foo" then attached to a PID whose executable was bar.) 578 579 ModuleSP old_exec_module_sp = target->GetExecutableModule(); 580 ArchSpec old_arch_spec = target->GetArchitecture(); 581 582 if (command.GetArgumentCount()) 583 { 584 result.AppendErrorWithFormat("Invalid arguments for '%s'.\nUsage: \n", m_cmd_name.c_str(), m_cmd_syntax.c_str()); 585 result.SetStatus (eReturnStatusFailed); 586 } 587 else 588 { 589 const char *plugin_name = NULL; 590 591 if (!m_options.plugin_name.empty()) 592 plugin_name = m_options.plugin_name.c_str(); 593 594 process = target->CreateProcess (m_interpreter.GetDebugger().GetListener(), plugin_name).get(); 595 596 if (process) 597 { 598 Error error; 599 int attach_pid = m_options.pid; 600 601 const char *wait_name = NULL; 602 603 if (m_options.name.empty()) 604 { 605 if (old_exec_module_sp) 606 { 607 wait_name = old_exec_module_sp->GetFileSpec().GetFilename().AsCString(); 608 } 609 } 610 else 611 { 612 wait_name = m_options.name.c_str(); 613 } 614 615 // If we are waiting for a process with this name to show up, do that first. 616 if (m_options.waitfor) 617 { 618 619 if (wait_name == NULL) 620 { 621 result.AppendError("Invalid arguments: must have a file loaded or supply a process name with the waitfor option.\n"); 622 result.SetStatus (eReturnStatusFailed); 623 return false; 624 } 625 626 m_interpreter.GetDebugger().GetOutputStream().Printf("Waiting to attach to a process named \"%s\".\n", wait_name); 627 error = process->Attach (wait_name, m_options.waitfor); 628 if (error.Success()) 629 { 630 result.SetStatus (eReturnStatusSuccessContinuingNoResult); 631 } 632 else 633 { 634 result.AppendErrorWithFormat ("Waiting for a process to launch named '%s': %s\n", 635 wait_name, 636 error.AsCString()); 637 result.SetStatus (eReturnStatusFailed); 638 return false; 639 } 640 // If we're synchronous, wait for the stopped event and report that. 641 // Otherwise just return. 642 // FIXME: in the async case it will now be possible to get to the command 643 // interpreter with a state eStateAttaching. Make sure we handle that correctly. 644 if (synchronous_execution) 645 { 646 StateType state = process->WaitForProcessToStop (NULL); 647 648 result.SetDidChangeProcessState (true); 649 result.AppendMessageWithFormat ("Process %i %s\n", process->GetID(), StateAsCString (state)); 650 result.SetStatus (eReturnStatusSuccessFinishNoResult); 651 } 652 else 653 { 654 result.SetDidChangeProcessState (true); 655 result.AppendMessageWithFormat ("Starting to attach to process."); 656 result.SetStatus (eReturnStatusSuccessFinishNoResult); 657 } 658 } 659 else 660 { 661 // If the process was specified by name look it up, so we can warn if there are multiple 662 // processes with this pid. 663 664 if (attach_pid == LLDB_INVALID_PROCESS_ID && wait_name != NULL) 665 { 666 std::vector<lldb::pid_t> pids; 667 StringList matches; 668 669 process->ListProcessesMatchingName(wait_name, matches, pids); 670 if (matches.GetSize() > 1) 671 { 672 result.AppendErrorWithFormat("More than one process named %s\n", wait_name); 673 result.SetStatus (eReturnStatusFailed); 674 return false; 675 } 676 else if (matches.GetSize() == 0) 677 { 678 result.AppendErrorWithFormat("Could not find a process named %s\n", wait_name); 679 result.SetStatus (eReturnStatusFailed); 680 return false; 681 } 682 else 683 { 684 attach_pid = pids[0]; 685 } 686 687 } 688 689 if (attach_pid != LLDB_INVALID_PROCESS_ID) 690 { 691 error = process->Attach (attach_pid); 692 if (error.Success()) 693 { 694 result.SetStatus (eReturnStatusSuccessContinuingNoResult); 695 } 696 else 697 { 698 result.AppendErrorWithFormat ("Attaching to process %i failed: %s.\n", 699 attach_pid, 700 error.AsCString()); 701 result.SetStatus (eReturnStatusFailed); 702 } 703 // See comment for synchronous_execution above. 704 if (synchronous_execution) 705 { 706 StateType state = process->WaitForProcessToStop (NULL); 707 708 result.SetDidChangeProcessState (true); 709 result.AppendMessageWithFormat ("Process %i %s\n", process->GetID(), StateAsCString (state)); 710 result.SetStatus (eReturnStatusSuccessFinishNoResult); 711 } 712 else 713 { 714 result.SetDidChangeProcessState (true); 715 result.AppendMessageWithFormat ("Starting to attach to process."); 716 result.SetStatus (eReturnStatusSuccessFinishNoResult); 717 } 718 } 719 else 720 { 721 result.AppendErrorWithFormat ("No PID specified for attach\n", 722 attach_pid, 723 error.AsCString()); 724 result.SetStatus (eReturnStatusFailed); 725 726 } 727 } 728 } 729 } 730 731 if (result.Succeeded()) 732 { 733 // Okay, we're done. Last step is to warn if the executable module has changed: 734 if (!old_exec_module_sp) 735 { 736 char new_path[PATH_MAX + 1]; 737 target->GetExecutableModule()->GetFileSpec().GetPath(new_path, PATH_MAX); 738 739 result.AppendMessageWithFormat("Executable module set to \"%s\".\n", 740 new_path); 741 } 742 else if (old_exec_module_sp->GetFileSpec() != target->GetExecutableModule()->GetFileSpec()) 743 { 744 char old_path[PATH_MAX + 1]; 745 char new_path[PATH_MAX + 1]; 746 747 old_exec_module_sp->GetFileSpec().GetPath(old_path, PATH_MAX); 748 target->GetExecutableModule()->GetFileSpec().GetPath (new_path, PATH_MAX); 749 750 result.AppendWarningWithFormat("Executable module changed from \"%s\" to \"%s\".\n", 751 old_path, new_path); 752 } 753 754 if (!old_arch_spec.IsValid()) 755 { 756 result.AppendMessageWithFormat ("Architecture set to: %s.\n", target->GetArchitecture().AsCString()); 757 } 758 else if (old_arch_spec != target->GetArchitecture()) 759 { 760 result.AppendWarningWithFormat("Architecture changed from %s to %s.\n", 761 old_arch_spec.AsCString(), target->GetArchitecture().AsCString()); 762 } 763 } 764 return result.Succeeded(); 765 } 766 767 Options * 768 GetOptions () 769 { 770 return &m_options; 771 } 772 773 protected: 774 775 CommandOptions m_options; 776 }; 777 778 779 lldb::OptionDefinition 780 CommandObjectProcessAttach::CommandOptions::g_option_table[] = 781 { 782 { LLDB_OPT_SET_ALL, false, "plugin", 'P', required_argument, NULL, 0, eArgTypePlugin, "Name of the process plugin you want to use."}, 783 { LLDB_OPT_SET_1, false, "pid", 'p', required_argument, NULL, 0, eArgTypePid, "The process ID of an existing process to attach to."}, 784 { LLDB_OPT_SET_2, false, "name", 'n', required_argument, NULL, 0, eArgTypeProcessName, "The name of the process to attach to."}, 785 { LLDB_OPT_SET_2, false, "waitfor",'w', no_argument, NULL, 0, eArgTypeNone, "Wait for the the process with <process-name> to launch."}, 786 { 0, false, NULL, 0, 0, NULL, 0, eArgTypeNone, NULL } 787 }; 788 789 //------------------------------------------------------------------------- 790 // CommandObjectProcessContinue 791 //------------------------------------------------------------------------- 792 #pragma mark CommandObjectProcessContinue 793 794 class CommandObjectProcessContinue : public CommandObject 795 { 796 public: 797 798 CommandObjectProcessContinue (CommandInterpreter &interpreter) : 799 CommandObject (interpreter, 800 "process continue", 801 "Continue execution of all threads in the current process.", 802 "process continue", 803 eFlagProcessMustBeLaunched | eFlagProcessMustBePaused) 804 { 805 } 806 807 808 ~CommandObjectProcessContinue () 809 { 810 } 811 812 bool 813 Execute (Args& command, 814 CommandReturnObject &result) 815 { 816 Process *process = m_interpreter.GetDebugger().GetExecutionContext().process; 817 bool synchronous_execution = m_interpreter.GetSynchronous (); 818 819 if (process == NULL) 820 { 821 result.AppendError ("no process to continue"); 822 result.SetStatus (eReturnStatusFailed); 823 return false; 824 } 825 826 StateType state = process->GetState(); 827 if (state == eStateStopped) 828 { 829 if (command.GetArgumentCount() != 0) 830 { 831 result.AppendErrorWithFormat ("The '%s' command does not take any arguments.\n", m_cmd_name.c_str()); 832 result.SetStatus (eReturnStatusFailed); 833 return false; 834 } 835 836 const uint32_t num_threads = process->GetThreadList().GetSize(); 837 838 // Set the actions that the threads should each take when resuming 839 for (uint32_t idx=0; idx<num_threads; ++idx) 840 { 841 process->GetThreadList().GetThreadAtIndex(idx)->SetResumeState (eStateRunning); 842 } 843 844 Error error(process->Resume()); 845 if (error.Success()) 846 { 847 result.AppendMessageWithFormat ("Process %i resuming\n", process->GetID()); 848 if (synchronous_execution) 849 { 850 state = process->WaitForProcessToStop (NULL); 851 852 result.SetDidChangeProcessState (true); 853 result.AppendMessageWithFormat ("Process %i %s\n", process->GetID(), StateAsCString (state)); 854 result.SetStatus (eReturnStatusSuccessFinishNoResult); 855 } 856 else 857 { 858 result.SetStatus (eReturnStatusSuccessContinuingNoResult); 859 } 860 } 861 else 862 { 863 result.AppendErrorWithFormat("Failed to resume process: %s.\n", error.AsCString()); 864 result.SetStatus (eReturnStatusFailed); 865 } 866 } 867 else 868 { 869 result.AppendErrorWithFormat ("Process cannot be continued from its current state (%s).\n", 870 StateAsCString(state)); 871 result.SetStatus (eReturnStatusFailed); 872 } 873 return result.Succeeded(); 874 } 875 }; 876 877 //------------------------------------------------------------------------- 878 // CommandObjectProcessDetach 879 //------------------------------------------------------------------------- 880 #pragma mark CommandObjectProcessDetach 881 882 class CommandObjectProcessDetach : public CommandObject 883 { 884 public: 885 886 CommandObjectProcessDetach (CommandInterpreter &interpreter) : 887 CommandObject (interpreter, 888 "process detach", 889 "Detach from the current process being debugged.", 890 "process detach", 891 eFlagProcessMustBeLaunched) 892 { 893 } 894 895 ~CommandObjectProcessDetach () 896 { 897 } 898 899 bool 900 Execute (Args& command, 901 CommandReturnObject &result) 902 { 903 Process *process = m_interpreter.GetDebugger().GetExecutionContext().process; 904 if (process == NULL) 905 { 906 result.AppendError ("must have a valid process in order to detach"); 907 result.SetStatus (eReturnStatusFailed); 908 return false; 909 } 910 911 result.AppendMessageWithFormat ("Detaching from process %i\n", process->GetID()); 912 Error error (process->Detach()); 913 if (error.Success()) 914 { 915 result.SetStatus (eReturnStatusSuccessFinishResult); 916 } 917 else 918 { 919 result.AppendErrorWithFormat ("Detach failed: %s\n", error.AsCString()); 920 result.SetStatus (eReturnStatusFailed); 921 return false; 922 } 923 return result.Succeeded(); 924 } 925 }; 926 927 //------------------------------------------------------------------------- 928 // CommandObjectProcessLoad 929 //------------------------------------------------------------------------- 930 #pragma mark CommandObjectProcessLoad 931 932 class CommandObjectProcessLoad : public CommandObject 933 { 934 public: 935 936 CommandObjectProcessLoad (CommandInterpreter &interpreter) : 937 CommandObject (interpreter, 938 "process load", 939 "Load a shared library into the current process.", 940 "process load <filename> [<filename> ...]", 941 eFlagProcessMustBeLaunched | eFlagProcessMustBePaused) 942 { 943 } 944 945 ~CommandObjectProcessLoad () 946 { 947 } 948 949 bool 950 Execute (Args& command, 951 CommandReturnObject &result) 952 { 953 Process *process = m_interpreter.GetDebugger().GetExecutionContext().process; 954 if (process == NULL) 955 { 956 result.AppendError ("must have a valid process in order to load a shared library"); 957 result.SetStatus (eReturnStatusFailed); 958 return false; 959 } 960 961 const uint32_t argc = command.GetArgumentCount(); 962 963 for (uint32_t i=0; i<argc; ++i) 964 { 965 Error error; 966 const char *image_path = command.GetArgumentAtIndex(i); 967 FileSpec image_spec (image_path, false); 968 uint32_t image_token = process->LoadImage(image_spec, error); 969 if (image_token != LLDB_INVALID_IMAGE_TOKEN) 970 { 971 result.AppendMessageWithFormat ("Loading \"%s\"...ok\nImage %u loaded.\n", image_path, image_token); 972 result.SetStatus (eReturnStatusSuccessFinishResult); 973 } 974 else 975 { 976 result.AppendErrorWithFormat ("failed to load '%s': %s", image_path, error.AsCString()); 977 result.SetStatus (eReturnStatusFailed); 978 } 979 } 980 return result.Succeeded(); 981 } 982 }; 983 984 985 //------------------------------------------------------------------------- 986 // CommandObjectProcessUnload 987 //------------------------------------------------------------------------- 988 #pragma mark CommandObjectProcessUnload 989 990 class CommandObjectProcessUnload : public CommandObject 991 { 992 public: 993 994 CommandObjectProcessUnload (CommandInterpreter &interpreter) : 995 CommandObject (interpreter, 996 "process unload", 997 "Unload a shared library from the current process using the index returned by a previous call to \"process load\".", 998 "process unload <index>", 999 eFlagProcessMustBeLaunched | eFlagProcessMustBePaused) 1000 { 1001 } 1002 1003 ~CommandObjectProcessUnload () 1004 { 1005 } 1006 1007 bool 1008 Execute (Args& command, 1009 CommandReturnObject &result) 1010 { 1011 Process *process = m_interpreter.GetDebugger().GetExecutionContext().process; 1012 if (process == NULL) 1013 { 1014 result.AppendError ("must have a valid process in order to load a shared library"); 1015 result.SetStatus (eReturnStatusFailed); 1016 return false; 1017 } 1018 1019 const uint32_t argc = command.GetArgumentCount(); 1020 1021 for (uint32_t i=0; i<argc; ++i) 1022 { 1023 const char *image_token_cstr = command.GetArgumentAtIndex(i); 1024 uint32_t image_token = Args::StringToUInt32(image_token_cstr, LLDB_INVALID_IMAGE_TOKEN, 0); 1025 if (image_token == LLDB_INVALID_IMAGE_TOKEN) 1026 { 1027 result.AppendErrorWithFormat ("invalid image index argument '%s'", image_token_cstr); 1028 result.SetStatus (eReturnStatusFailed); 1029 break; 1030 } 1031 else 1032 { 1033 Error error (process->UnloadImage(image_token)); 1034 if (error.Success()) 1035 { 1036 result.AppendMessageWithFormat ("Unloading shared library with index %u...ok\n", image_token); 1037 result.SetStatus (eReturnStatusSuccessFinishResult); 1038 } 1039 else 1040 { 1041 result.AppendErrorWithFormat ("failed to unload image: %s", error.AsCString()); 1042 result.SetStatus (eReturnStatusFailed); 1043 break; 1044 } 1045 } 1046 } 1047 return result.Succeeded(); 1048 } 1049 }; 1050 1051 //------------------------------------------------------------------------- 1052 // CommandObjectProcessSignal 1053 //------------------------------------------------------------------------- 1054 #pragma mark CommandObjectProcessSignal 1055 1056 class CommandObjectProcessSignal : public CommandObject 1057 { 1058 public: 1059 1060 CommandObjectProcessSignal (CommandInterpreter &interpreter) : 1061 CommandObject (interpreter, 1062 "process signal", 1063 "Send a UNIX signal to the current process being debugged.", 1064 NULL) 1065 { 1066 CommandArgumentEntry arg; 1067 CommandArgumentData signal_arg; 1068 1069 // Define the first (and only) variant of this arg. 1070 signal_arg.arg_type = eArgTypeUnixSignal; 1071 signal_arg.arg_repetition = eArgRepeatPlain; 1072 1073 // There is only one variant this argument could be; put it into the argument entry. 1074 arg.push_back (signal_arg); 1075 1076 // Push the data for the first argument into the m_arguments vector. 1077 m_arguments.push_back (arg); 1078 } 1079 1080 ~CommandObjectProcessSignal () 1081 { 1082 } 1083 1084 bool 1085 Execute (Args& command, 1086 CommandReturnObject &result) 1087 { 1088 Process *process = m_interpreter.GetDebugger().GetExecutionContext().process; 1089 if (process == NULL) 1090 { 1091 result.AppendError ("no process to signal"); 1092 result.SetStatus (eReturnStatusFailed); 1093 return false; 1094 } 1095 1096 if (command.GetArgumentCount() == 1) 1097 { 1098 int signo = LLDB_INVALID_SIGNAL_NUMBER; 1099 1100 const char *signal_name = command.GetArgumentAtIndex(0); 1101 if (::isxdigit (signal_name[0])) 1102 signo = Args::StringToSInt32(signal_name, LLDB_INVALID_SIGNAL_NUMBER, 0); 1103 else 1104 signo = process->GetUnixSignals().GetSignalNumberFromName (signal_name); 1105 1106 if (signo == LLDB_INVALID_SIGNAL_NUMBER) 1107 { 1108 result.AppendErrorWithFormat ("Invalid signal argument '%s'.\n", command.GetArgumentAtIndex(0)); 1109 result.SetStatus (eReturnStatusFailed); 1110 } 1111 else 1112 { 1113 Error error (process->Signal (signo)); 1114 if (error.Success()) 1115 { 1116 result.SetStatus (eReturnStatusSuccessFinishResult); 1117 } 1118 else 1119 { 1120 result.AppendErrorWithFormat ("Failed to send signal %i: %s\n", signo, error.AsCString()); 1121 result.SetStatus (eReturnStatusFailed); 1122 } 1123 } 1124 } 1125 else 1126 { 1127 result.AppendErrorWithFormat("'%s' takes exactly one signal number argument:\nUsage: \n", m_cmd_name.c_str(), 1128 m_cmd_syntax.c_str()); 1129 result.SetStatus (eReturnStatusFailed); 1130 } 1131 return result.Succeeded(); 1132 } 1133 }; 1134 1135 1136 //------------------------------------------------------------------------- 1137 // CommandObjectProcessInterrupt 1138 //------------------------------------------------------------------------- 1139 #pragma mark CommandObjectProcessInterrupt 1140 1141 class CommandObjectProcessInterrupt : public CommandObject 1142 { 1143 public: 1144 1145 1146 CommandObjectProcessInterrupt (CommandInterpreter &interpreter) : 1147 CommandObject (interpreter, 1148 "process interrupt", 1149 "Interrupt the current process being debugged.", 1150 "process interrupt", 1151 eFlagProcessMustBeLaunched) 1152 { 1153 } 1154 1155 ~CommandObjectProcessInterrupt () 1156 { 1157 } 1158 1159 bool 1160 Execute (Args& command, 1161 CommandReturnObject &result) 1162 { 1163 Process *process = m_interpreter.GetDebugger().GetExecutionContext().process; 1164 if (process == NULL) 1165 { 1166 result.AppendError ("no process to halt"); 1167 result.SetStatus (eReturnStatusFailed); 1168 return false; 1169 } 1170 1171 if (command.GetArgumentCount() == 0) 1172 { 1173 Error error(process->Halt ()); 1174 if (error.Success()) 1175 { 1176 result.SetStatus (eReturnStatusSuccessFinishResult); 1177 1178 // Maybe we should add a "SuspendThreadPlans so we 1179 // can halt, and keep in place all the current thread plans. 1180 process->GetThreadList().DiscardThreadPlans(); 1181 } 1182 else 1183 { 1184 result.AppendErrorWithFormat ("Failed to halt process: %s\n", error.AsCString()); 1185 result.SetStatus (eReturnStatusFailed); 1186 } 1187 } 1188 else 1189 { 1190 result.AppendErrorWithFormat("'%s' takes no arguments:\nUsage: \n", 1191 m_cmd_name.c_str(), 1192 m_cmd_syntax.c_str()); 1193 result.SetStatus (eReturnStatusFailed); 1194 } 1195 return result.Succeeded(); 1196 } 1197 }; 1198 1199 //------------------------------------------------------------------------- 1200 // CommandObjectProcessKill 1201 //------------------------------------------------------------------------- 1202 #pragma mark CommandObjectProcessKill 1203 1204 class CommandObjectProcessKill : public CommandObject 1205 { 1206 public: 1207 1208 CommandObjectProcessKill (CommandInterpreter &interpreter) : 1209 CommandObject (interpreter, 1210 "process kill", 1211 "Terminate the current process being debugged.", 1212 "process kill", 1213 eFlagProcessMustBeLaunched) 1214 { 1215 } 1216 1217 ~CommandObjectProcessKill () 1218 { 1219 } 1220 1221 bool 1222 Execute (Args& command, 1223 CommandReturnObject &result) 1224 { 1225 Process *process = m_interpreter.GetDebugger().GetExecutionContext().process; 1226 if (process == NULL) 1227 { 1228 result.AppendError ("no process to kill"); 1229 result.SetStatus (eReturnStatusFailed); 1230 return false; 1231 } 1232 1233 if (command.GetArgumentCount() == 0) 1234 { 1235 Error error (process->Destroy()); 1236 if (error.Success()) 1237 { 1238 result.SetStatus (eReturnStatusSuccessFinishResult); 1239 } 1240 else 1241 { 1242 result.AppendErrorWithFormat ("Failed to kill process: %s\n", error.AsCString()); 1243 result.SetStatus (eReturnStatusFailed); 1244 } 1245 } 1246 else 1247 { 1248 result.AppendErrorWithFormat("'%s' takes no arguments:\nUsage: \n", 1249 m_cmd_name.c_str(), 1250 m_cmd_syntax.c_str()); 1251 result.SetStatus (eReturnStatusFailed); 1252 } 1253 return result.Succeeded(); 1254 } 1255 }; 1256 1257 //------------------------------------------------------------------------- 1258 // CommandObjectProcessStatus 1259 //------------------------------------------------------------------------- 1260 #pragma mark CommandObjectProcessStatus 1261 1262 class CommandObjectProcessStatus : public CommandObject 1263 { 1264 public: 1265 CommandObjectProcessStatus (CommandInterpreter &interpreter) : 1266 CommandObject (interpreter, 1267 "process status", 1268 "Show the current status and location of executing process.", 1269 "process status", 1270 0) 1271 { 1272 } 1273 1274 ~CommandObjectProcessStatus() 1275 { 1276 } 1277 1278 1279 bool 1280 Execute 1281 ( 1282 Args& command, 1283 CommandReturnObject &result 1284 ) 1285 { 1286 StreamString &output_stream = result.GetOutputStream(); 1287 result.SetStatus (eReturnStatusSuccessFinishNoResult); 1288 ExecutionContext exe_ctx(m_interpreter.GetDebugger().GetExecutionContext()); 1289 if (exe_ctx.process) 1290 { 1291 const StateType state = exe_ctx.process->GetState(); 1292 if (StateIsStoppedState(state)) 1293 { 1294 if (state == eStateExited) 1295 { 1296 int exit_status = exe_ctx.process->GetExitStatus(); 1297 const char *exit_description = exe_ctx.process->GetExitDescription(); 1298 output_stream.Printf ("Process %d exited with status = %i (0x%8.8x) %s\n", 1299 exe_ctx.process->GetID(), 1300 exit_status, 1301 exit_status, 1302 exit_description ? exit_description : ""); 1303 } 1304 else 1305 { 1306 output_stream.Printf ("Process %d %s\n", exe_ctx.process->GetID(), StateAsCString (state)); 1307 if (exe_ctx.thread == NULL) 1308 exe_ctx.thread = exe_ctx.process->GetThreadList().GetThreadAtIndex(0).get(); 1309 if (exe_ctx.thread != NULL) 1310 { 1311 DisplayThreadsInfo (m_interpreter, &exe_ctx, result, true, true); 1312 } 1313 else 1314 { 1315 result.AppendError ("No valid thread found in current process."); 1316 result.SetStatus (eReturnStatusFailed); 1317 } 1318 } 1319 } 1320 else 1321 { 1322 output_stream.Printf ("Process %d is running.\n", 1323 exe_ctx.process->GetID()); 1324 } 1325 } 1326 else 1327 { 1328 result.AppendError ("No current location or status available."); 1329 result.SetStatus (eReturnStatusFailed); 1330 } 1331 return result.Succeeded(); 1332 } 1333 }; 1334 1335 //------------------------------------------------------------------------- 1336 // CommandObjectProcessHandle 1337 //------------------------------------------------------------------------- 1338 #pragma mark CommandObjectProcessHandle 1339 1340 class CommandObjectProcessHandle : public CommandObject 1341 { 1342 public: 1343 1344 class CommandOptions : public Options 1345 { 1346 public: 1347 1348 CommandOptions () : 1349 Options () 1350 { 1351 ResetOptionValues (); 1352 } 1353 1354 ~CommandOptions () 1355 { 1356 } 1357 1358 Error 1359 SetOptionValue (int option_idx, const char *option_arg) 1360 { 1361 Error error; 1362 char short_option = (char) m_getopt_table[option_idx].val; 1363 1364 switch (short_option) 1365 { 1366 case 's': 1367 stop = option_arg; 1368 break; 1369 case 'n': 1370 notify = option_arg; 1371 break; 1372 case 'p': 1373 pass = option_arg; 1374 break; 1375 default: 1376 error.SetErrorStringWithFormat("Invalid short option character '%c'.\n", short_option); 1377 break; 1378 } 1379 return error; 1380 } 1381 1382 void 1383 ResetOptionValues () 1384 { 1385 Options::ResetOptionValues(); 1386 stop.clear(); 1387 notify.clear(); 1388 pass.clear(); 1389 } 1390 1391 const lldb::OptionDefinition* 1392 GetDefinitions () 1393 { 1394 return g_option_table; 1395 } 1396 1397 // Options table: Required for subclasses of Options. 1398 1399 static lldb::OptionDefinition g_option_table[]; 1400 1401 // Instance variables to hold the values for command options. 1402 1403 std::string stop; 1404 std::string notify; 1405 std::string pass; 1406 }; 1407 1408 1409 CommandObjectProcessHandle (CommandInterpreter &interpreter) : 1410 CommandObject (interpreter, 1411 "process handle", 1412 "Show or update what the process and debugger should do with various signals received from the OS.", 1413 NULL) 1414 { 1415 SetHelpLong ("If no signals are specified, update them all. If no update option is specified, list the current values.\n"); 1416 CommandArgumentEntry arg; 1417 CommandArgumentData signal_arg; 1418 1419 signal_arg.arg_type = eArgTypeUnixSignal; 1420 signal_arg.arg_repetition = eArgRepeatStar; 1421 1422 arg.push_back (signal_arg); 1423 1424 m_arguments.push_back (arg); 1425 } 1426 1427 ~CommandObjectProcessHandle () 1428 { 1429 } 1430 1431 Options * 1432 GetOptions () 1433 { 1434 return &m_options; 1435 } 1436 1437 bool 1438 VerifyCommandOptionValue (const std::string &option, int &real_value) 1439 { 1440 bool okay = true; 1441 1442 bool success = false; 1443 bool tmp_value = Args::StringToBoolean (option.c_str(), false, &success); 1444 1445 if (success && tmp_value) 1446 real_value = 1; 1447 else if (success && !tmp_value) 1448 real_value = 0; 1449 else 1450 { 1451 // If the value isn't 'true' or 'false', it had better be 0 or 1. 1452 real_value = Args::StringToUInt32 (option.c_str(), 3); 1453 if (real_value != 0 && real_value != 1) 1454 okay = false; 1455 } 1456 1457 return okay; 1458 } 1459 1460 void 1461 PrintSignalHeader (Stream &str) 1462 { 1463 str.Printf ("NAME PASS STOP NOTIFY\n"); 1464 str.Printf ("========== ===== ===== ======\n"); 1465 } 1466 1467 void 1468 PrintSignal (Stream &str, int32_t signo, const char *sig_name, UnixSignals &signals) 1469 { 1470 bool stop; 1471 bool suppress; 1472 bool notify; 1473 1474 str.Printf ("%-10s ", sig_name); 1475 if (signals.GetSignalInfo (signo, suppress, stop, notify)) 1476 { 1477 bool pass = !suppress; 1478 str.Printf ("%s %s %s", 1479 (pass ? "true " : "false"), 1480 (stop ? "true " : "false"), 1481 (notify ? "true " : "false")); 1482 } 1483 str.Printf ("\n"); 1484 } 1485 1486 void 1487 PrintSignalInformation (Stream &str, Args &signal_args, int num_valid_signals, UnixSignals &signals) 1488 { 1489 PrintSignalHeader (str); 1490 1491 if (num_valid_signals > 0) 1492 { 1493 size_t num_args = signal_args.GetArgumentCount(); 1494 for (size_t i = 0; i < num_args; ++i) 1495 { 1496 int32_t signo = signals.GetSignalNumberFromName (signal_args.GetArgumentAtIndex (i)); 1497 if (signo != LLDB_INVALID_SIGNAL_NUMBER) 1498 PrintSignal (str, signo, signal_args.GetArgumentAtIndex (i), signals); 1499 } 1500 } 1501 else // Print info for ALL signals 1502 { 1503 int32_t signo = signals.GetFirstSignalNumber(); 1504 while (signo != LLDB_INVALID_SIGNAL_NUMBER) 1505 { 1506 PrintSignal (str, signo, signals.GetSignalAsCString (signo), signals); 1507 signo = signals.GetNextSignalNumber (signo); 1508 } 1509 } 1510 } 1511 1512 bool 1513 Execute (Args &signal_args, CommandReturnObject &result) 1514 { 1515 TargetSP target_sp = m_interpreter.GetDebugger().GetSelectedTarget(); 1516 1517 if (!target_sp) 1518 { 1519 result.AppendError ("No current target;" 1520 " cannot handle signals until you have a valid target and process.\n"); 1521 result.SetStatus (eReturnStatusFailed); 1522 return false; 1523 } 1524 1525 ProcessSP process_sp = target_sp->GetProcessSP(); 1526 1527 if (!process_sp) 1528 { 1529 result.AppendError ("No current process; cannot handle signals until you have a valid process.\n"); 1530 result.SetStatus (eReturnStatusFailed); 1531 return false; 1532 } 1533 1534 int stop_action = -1; // -1 means leave the current setting alone 1535 int pass_action = -1; // -1 means leave the current setting alone 1536 int notify_action = -1; // -1 means leave the current setting alone 1537 1538 if (! m_options.stop.empty() 1539 && ! VerifyCommandOptionValue (m_options.stop, stop_action)) 1540 { 1541 result.AppendError ("Invalid argument for command option --stop; must be true or false.\n"); 1542 result.SetStatus (eReturnStatusFailed); 1543 return false; 1544 } 1545 1546 if (! m_options.notify.empty() 1547 && ! VerifyCommandOptionValue (m_options.notify, notify_action)) 1548 { 1549 result.AppendError ("Invalid argument for command option --notify; must be true or false.\n"); 1550 result.SetStatus (eReturnStatusFailed); 1551 return false; 1552 } 1553 1554 if (! m_options.pass.empty() 1555 && ! VerifyCommandOptionValue (m_options.pass, pass_action)) 1556 { 1557 result.AppendError ("Invalid argument for command option --pass; must be true or false.\n"); 1558 result.SetStatus (eReturnStatusFailed); 1559 return false; 1560 } 1561 1562 size_t num_args = signal_args.GetArgumentCount(); 1563 UnixSignals &signals = process_sp->GetUnixSignals(); 1564 int num_signals_set = 0; 1565 1566 if (num_args > 0) 1567 { 1568 for (size_t i = 0; i < num_args; ++i) 1569 { 1570 int32_t signo = signals.GetSignalNumberFromName (signal_args.GetArgumentAtIndex (i)); 1571 if (signo != LLDB_INVALID_SIGNAL_NUMBER) 1572 { 1573 // Casting the actions as bools here should be okay, because VerifyCommandOptionValue guarantees 1574 // the value is either 0 or 1. 1575 if (stop_action != -1) 1576 signals.SetShouldStop (signo, (bool) stop_action); 1577 if (pass_action != -1) 1578 { 1579 bool suppress = ! ((bool) pass_action); 1580 signals.SetShouldSuppress (signo, suppress); 1581 } 1582 if (notify_action != -1) 1583 signals.SetShouldNotify (signo, (bool) notify_action); 1584 ++num_signals_set; 1585 } 1586 else 1587 { 1588 result.AppendErrorWithFormat ("Invalid signal name '%s'\n", signal_args.GetArgumentAtIndex (i)); 1589 } 1590 } 1591 } 1592 else 1593 { 1594 // No signal specified, if any command options were specified, update ALL signals. 1595 if ((notify_action != -1) || (stop_action != -1) || (pass_action != -1)) 1596 { 1597 if (m_interpreter.Confirm ("Do you really want to update all the signals?", false)) 1598 { 1599 int32_t signo = signals.GetFirstSignalNumber(); 1600 while (signo != LLDB_INVALID_SIGNAL_NUMBER) 1601 { 1602 if (notify_action != -1) 1603 signals.SetShouldNotify (signo, (bool) notify_action); 1604 if (stop_action != -1) 1605 signals.SetShouldStop (signo, (bool) stop_action); 1606 if (pass_action != -1) 1607 { 1608 bool suppress = ! ((bool) pass_action); 1609 signals.SetShouldSuppress (signo, suppress); 1610 } 1611 signo = signals.GetNextSignalNumber (signo); 1612 } 1613 } 1614 } 1615 } 1616 1617 PrintSignalInformation (result.GetOutputStream(), signal_args, num_signals_set, signals); 1618 1619 if (num_signals_set > 0) 1620 result.SetStatus (eReturnStatusSuccessFinishNoResult); 1621 else 1622 result.SetStatus (eReturnStatusFailed); 1623 1624 return result.Succeeded(); 1625 } 1626 1627 protected: 1628 1629 CommandOptions m_options; 1630 }; 1631 1632 lldb::OptionDefinition 1633 CommandObjectProcessHandle::CommandOptions::g_option_table[] = 1634 { 1635 { 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." }, 1636 { 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." }, 1637 { LLDB_OPT_SET_1, false, "pass", 'p', required_argument, NULL, 0, eArgTypeBoolean, "Whether or not the signal should be passed to the process." }, 1638 { 0, false, NULL, 0, 0, NULL, 0, eArgTypeNone, NULL } 1639 }; 1640 1641 //------------------------------------------------------------------------- 1642 // CommandObjectMultiwordProcess 1643 //------------------------------------------------------------------------- 1644 1645 CommandObjectMultiwordProcess::CommandObjectMultiwordProcess (CommandInterpreter &interpreter) : 1646 CommandObjectMultiword (interpreter, 1647 "process", 1648 "A set of commands for operating on a process.", 1649 "process <subcommand> [<subcommand-options>]") 1650 { 1651 LoadSubCommand ("attach", CommandObjectSP (new CommandObjectProcessAttach (interpreter))); 1652 LoadSubCommand ("launch", CommandObjectSP (new CommandObjectProcessLaunch (interpreter))); 1653 LoadSubCommand ("continue", CommandObjectSP (new CommandObjectProcessContinue (interpreter))); 1654 LoadSubCommand ("detach", CommandObjectSP (new CommandObjectProcessDetach (interpreter))); 1655 LoadSubCommand ("load", CommandObjectSP (new CommandObjectProcessLoad (interpreter))); 1656 LoadSubCommand ("unload", CommandObjectSP (new CommandObjectProcessUnload (interpreter))); 1657 LoadSubCommand ("signal", CommandObjectSP (new CommandObjectProcessSignal (interpreter))); 1658 LoadSubCommand ("handle", CommandObjectSP (new CommandObjectProcessHandle (interpreter))); 1659 LoadSubCommand ("status", CommandObjectSP (new CommandObjectProcessStatus (interpreter))); 1660 LoadSubCommand ("interrupt", CommandObjectSP (new CommandObjectProcessInterrupt (interpreter))); 1661 LoadSubCommand ("kill", CommandObjectSP (new CommandObjectProcessKill (interpreter))); 1662 } 1663 1664 CommandObjectMultiwordProcess::~CommandObjectMultiwordProcess () 1665 { 1666 } 1667 1668