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/Host/Host.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 () : 43 Options() 44 { 45 // Keep default values of all options in one place: ResetOptionValues () 46 ResetOptionValues (); 47 } 48 49 ~CommandOptions () 50 { 51 } 52 53 Error 54 SetOptionValue (int 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'.\n", short_option); 75 break; 76 77 } 78 return error; 79 } 80 81 void 82 ResetOptionValues () 83 { 84 Options::ResetOptionValues(); 85 stop_at_entry = false; 86 in_new_tty = false; 87 tty_name.clear(); 88 stdin_path.clear(); 89 stdout_path.clear(); 90 stderr_path.clear(); 91 plugin_name.clear(); 92 working_dir.clear(); 93 no_stdio = false; 94 } 95 96 const lldb::OptionDefinition* 97 GetDefinitions () 98 { 99 return g_option_table; 100 } 101 102 // Options table: Required for subclasses of Options. 103 104 static lldb::OptionDefinition g_option_table[]; 105 106 // Instance variables to hold the values for command options. 107 108 bool stop_at_entry; 109 bool in_new_tty; 110 bool no_stdio; 111 std::string tty_name; 112 std::string stderr_path; 113 std::string stdin_path; 114 std::string stdout_path; 115 std::string plugin_name; 116 std::string working_dir; 117 118 }; 119 120 CommandObjectProcessLaunch (CommandInterpreter &interpreter) : 121 CommandObject (interpreter, 122 "process launch", 123 "Launch the executable in the debugger.", 124 NULL) 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 Target *target = m_interpreter.GetDebugger().GetSelectedTarget().get(); 155 156 if (target == NULL) 157 { 158 result.AppendError ("invalid target, set executable file using 'file' command"); 159 result.SetStatus (eReturnStatusFailed); 160 return false; 161 } 162 163 // If our listener is NULL, users aren't allows to launch 164 char filename[PATH_MAX]; 165 const Module *exe_module = target->GetExecutableModule().get(); 166 167 if (exe_module == NULL) 168 { 169 result.AppendError ("no file in target, set executable file using 'file' command"); 170 result.SetStatus (eReturnStatusFailed); 171 return false; 172 } 173 174 exe_module->GetFileSpec().GetPath(filename, sizeof(filename)); 175 176 StateType state = eStateInvalid; 177 Process *process = m_interpreter.GetDebugger().GetExecutionContext().process; 178 if (process) 179 { 180 state = process->GetState(); 181 182 if (process->IsAlive() && state != eStateConnected) 183 { 184 char message[1024]; 185 if (process->GetState() == eStateAttaching) 186 ::strncpy (message, "There is a pending attach, abort it and launch a new process?", sizeof(message)); 187 else 188 ::strncpy (message, "There is a running process, kill it and restart?", sizeof(message)); 189 190 if (!m_interpreter.Confirm (message, true)) 191 { 192 result.SetStatus (eReturnStatusFailed); 193 return false; 194 } 195 else 196 { 197 Error error (process->Destroy()); 198 if (error.Success()) 199 { 200 result.SetStatus (eReturnStatusSuccessFinishResult); 201 } 202 else 203 { 204 result.AppendErrorWithFormat ("Failed to kill process: %s\n", error.AsCString()); 205 result.SetStatus (eReturnStatusFailed); 206 } 207 } 208 } 209 } 210 211 if (state != eStateConnected) 212 { 213 const char *plugin_name; 214 if (!m_options.plugin_name.empty()) 215 plugin_name = m_options.plugin_name.c_str(); 216 else 217 plugin_name = NULL; 218 219 process = target->CreateProcess (m_interpreter.GetDebugger().GetListener(), plugin_name).get(); 220 if (process == NULL) 221 { 222 result.AppendErrorWithFormat ("Failed to find a process plugin for executable.\n"); 223 result.SetStatus (eReturnStatusFailed); 224 return false; 225 } 226 } 227 228 229 // If no launch args were given on the command line, then use any that 230 // might have been set using the "run-args" set variable. 231 if (launch_args.GetArgumentCount() == 0) 232 { 233 if (process->GetRunArguments().GetArgumentCount() > 0) 234 launch_args = process->GetRunArguments(); 235 } 236 237 if (m_options.in_new_tty) 238 { 239 if (state == eStateConnected) 240 { 241 result.AppendWarning("launch in tty option is ignored when launching through a remote connection"); 242 m_options.in_new_tty = false; 243 } 244 else 245 { 246 char exec_file_path[PATH_MAX]; 247 if (exe_module->GetFileSpec().GetPath(exec_file_path, sizeof(exec_file_path))) 248 { 249 launch_args.InsertArgumentAtIndex(0, exec_file_path); 250 } 251 else 252 { 253 result.AppendError("invalid executable"); 254 result.SetStatus (eReturnStatusFailed); 255 return false; 256 } 257 } 258 } 259 260 Args environment; 261 262 process->GetEnvironmentAsArgs (environment); 263 264 uint32_t launch_flags = eLaunchFlagNone; 265 266 if (process->GetDisableASLR()) 267 launch_flags |= eLaunchFlagDisableASLR; 268 269 if (m_options.no_stdio) 270 launch_flags |= eLaunchFlagDisableSTDIO; 271 else if (!m_options.in_new_tty 272 && m_options.stdin_path.empty() 273 && m_options.stdout_path.empty() 274 && m_options.stderr_path.empty()) 275 { 276 // Only use the settings value if the user hasn't specified any options that would override it. 277 if (process->GetDisableSTDIO()) 278 launch_flags |= eLaunchFlagDisableSTDIO; 279 } 280 281 const char **inferior_argv = launch_args.GetArgumentCount() ? launch_args.GetConstArgumentVector() : NULL; 282 const char **inferior_envp = environment.GetArgumentCount() ? environment.GetConstArgumentVector() : NULL; 283 284 Error error; 285 const char *working_dir = NULL; 286 if (!m_options.working_dir.empty()) 287 working_dir = m_options.working_dir.c_str(); 288 289 if (m_options.in_new_tty) 290 { 291 292 lldb::pid_t pid = Host::LaunchInNewTerminal (m_options.tty_name.c_str(), 293 inferior_argv, 294 inferior_envp, 295 working_dir, 296 &exe_module->GetArchitecture(), 297 true, 298 process->GetDisableASLR()); 299 300 if (pid != LLDB_INVALID_PROCESS_ID) 301 error = process->Attach (pid); 302 } 303 else 304 { 305 const char * stdin_path = NULL; 306 const char * stdout_path = NULL; 307 const char * stderr_path = NULL; 308 309 // Were any standard input/output/error paths given on the command line? 310 if (m_options.stdin_path.empty() && 311 m_options.stdout_path.empty() && 312 m_options.stderr_path.empty()) 313 { 314 // No standard file handles were given on the command line, check 315 // with the process object in case they were give using "set settings" 316 stdin_path = process->GetStandardInputPath(); 317 stdout_path = process->GetStandardOutputPath(); 318 stderr_path = process->GetStandardErrorPath(); 319 } 320 else 321 { 322 stdin_path = m_options.stdin_path.empty() ? NULL : m_options.stdin_path.c_str(); 323 stdout_path = m_options.stdout_path.empty() ? NULL : m_options.stdout_path.c_str(); 324 stderr_path = m_options.stderr_path.empty() ? NULL : m_options.stderr_path.c_str(); 325 } 326 327 error = process->Launch (inferior_argv, 328 inferior_envp, 329 launch_flags, 330 stdin_path, 331 stdout_path, 332 stderr_path, 333 working_dir); 334 } 335 336 if (error.Success()) 337 { 338 const char *archname = exe_module->GetArchitecture().GetArchitectureName(); 339 340 result.AppendMessageWithFormat ("Process %i launched: '%s' (%s)\n", process->GetID(), filename, archname); 341 result.SetDidChangeProcessState (true); 342 if (m_options.stop_at_entry == false) 343 { 344 result.SetStatus (eReturnStatusSuccessContinuingNoResult); 345 StateType state = process->WaitForProcessToStop (NULL); 346 347 if (state == eStateStopped) 348 { 349 error = process->Resume(); 350 if (error.Success()) 351 { 352 bool synchronous_execution = m_interpreter.GetSynchronous (); 353 if (synchronous_execution) 354 { 355 state = process->WaitForProcessToStop (NULL); 356 if (!StateIsStoppedState(state)) 357 { 358 result.AppendErrorWithFormat ("Process isn't stopped: %s", StateAsCString(state)); 359 } 360 result.SetDidChangeProcessState (true); 361 result.SetStatus (eReturnStatusSuccessFinishResult); 362 } 363 else 364 { 365 result.SetStatus (eReturnStatusSuccessContinuingNoResult); 366 } 367 } 368 else 369 { 370 result.AppendErrorWithFormat ("Process resume at entry point failed: %s", error.AsCString()); 371 result.SetStatus (eReturnStatusFailed); 372 } 373 } 374 else 375 { 376 result.AppendErrorWithFormat ("Initial process state wasn't stopped: %s", StateAsCString(state)); 377 result.SetStatus (eReturnStatusFailed); 378 } 379 } 380 } 381 else 382 { 383 result.AppendErrorWithFormat ("Process launch failed: %s", error.AsCString()); 384 result.SetStatus (eReturnStatusFailed); 385 } 386 387 return result.Succeeded(); 388 } 389 390 virtual const char *GetRepeatCommand (Args ¤t_command_args, uint32_t index) 391 { 392 // No repeat for "process launch"... 393 return ""; 394 } 395 396 protected: 397 398 CommandOptions m_options; 399 }; 400 401 402 #define SET1 LLDB_OPT_SET_1 403 #define SET2 LLDB_OPT_SET_2 404 #define SET3 LLDB_OPT_SET_3 405 406 lldb::OptionDefinition 407 CommandObjectProcessLaunch::CommandOptions::g_option_table[] = 408 { 409 { 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."}, 410 { SET1 , false, "stdin", 'i', required_argument, NULL, 0, eArgTypePath, "Redirect stdin for the process to <path>."}, 411 { SET1 , false, "stdout", 'o', required_argument, NULL, 0, eArgTypePath, "Redirect stdout for the process to <path>."}, 412 { SET1 , false, "stderr", 'e', required_argument, NULL, 0, eArgTypePath, "Redirect stderr for the process to <path>."}, 413 { SET1 | SET2 | SET3, false, "plugin", 'p', required_argument, NULL, 0, eArgTypePlugin, "Name of the process plugin you want to use."}, 414 { 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."}, 415 { SET3, false, "no-stdio", 'n', no_argument, NULL, 0, eArgTypeNone, "Do not set up for terminal I/O to go to running process."}, 416 { SET1 | SET2 | SET3, false, "working-dir", 'w', required_argument, NULL, 0, eArgTypePath, "Set the current working directory to <path> when running the inferior."}, 417 { 0, false, NULL, 0, 0, NULL, 0, eArgTypeNone, NULL } 418 }; 419 420 #undef SET1 421 #undef SET2 422 #undef SET3 423 424 //------------------------------------------------------------------------- 425 // CommandObjectProcessAttach 426 //------------------------------------------------------------------------- 427 #pragma mark CommandObjectProcessAttach 428 class CommandObjectProcessAttach : public CommandObject 429 { 430 public: 431 432 class CommandOptions : public Options 433 { 434 public: 435 436 CommandOptions () : 437 Options() 438 { 439 // Keep default values of all options in one place: ResetOptionValues () 440 ResetOptionValues (); 441 } 442 443 ~CommandOptions () 444 { 445 } 446 447 Error 448 SetOptionValue (int option_idx, const char *option_arg) 449 { 450 Error error; 451 char short_option = (char) m_getopt_table[option_idx].val; 452 bool success = false; 453 switch (short_option) 454 { 455 case 'p': 456 pid = Args::StringToUInt32 (option_arg, LLDB_INVALID_PROCESS_ID, 0, &success); 457 if (!success || pid == LLDB_INVALID_PROCESS_ID) 458 { 459 error.SetErrorStringWithFormat("Invalid process ID '%s'.\n", option_arg); 460 } 461 break; 462 463 case 'P': 464 plugin_name = option_arg; 465 break; 466 467 case 'n': 468 name.assign(option_arg); 469 break; 470 471 case 'w': 472 waitfor = true; 473 break; 474 475 default: 476 error.SetErrorStringWithFormat("Invalid short option character '%c'.\n", short_option); 477 break; 478 } 479 return error; 480 } 481 482 void 483 ResetOptionValues () 484 { 485 Options::ResetOptionValues(); 486 pid = LLDB_INVALID_PROCESS_ID; 487 name.clear(); 488 waitfor = false; 489 } 490 491 const lldb::OptionDefinition* 492 GetDefinitions () 493 { 494 return g_option_table; 495 } 496 497 virtual bool 498 HandleOptionArgumentCompletion (CommandInterpreter &interpeter, 499 Args &input, 500 int cursor_index, 501 int char_pos, 502 OptionElementVector &opt_element_vector, 503 int opt_element_index, 504 int match_start_point, 505 int max_return_elements, 506 bool &word_complete, 507 StringList &matches) 508 { 509 int opt_arg_pos = opt_element_vector[opt_element_index].opt_arg_pos; 510 int opt_defs_index = opt_element_vector[opt_element_index].opt_defs_index; 511 512 // We are only completing the name option for now... 513 514 const lldb::OptionDefinition *opt_defs = GetDefinitions(); 515 if (opt_defs[opt_defs_index].short_option == 'n') 516 { 517 // Are we in the name? 518 519 // Look to see if there is a -P argument provided, and if so use that plugin, otherwise 520 // use the default plugin. 521 Process *process = interpeter.GetDebugger().GetExecutionContext().process; 522 bool need_to_delete_process = false; 523 524 const char *partial_name = NULL; 525 partial_name = input.GetArgumentAtIndex(opt_arg_pos); 526 527 if (process && process->IsAlive()) 528 return true; 529 530 Target *target = interpeter.GetDebugger().GetSelectedTarget().get(); 531 if (target == NULL) 532 { 533 // No target has been set yet, for now do host completion. Otherwise I don't know how we would 534 // figure out what the right target to use is... 535 std::vector<lldb::pid_t> pids; 536 Host::ListProcessesMatchingName (partial_name, matches, pids); 537 return true; 538 } 539 if (!process) 540 { 541 process = target->CreateProcess (interpeter.GetDebugger().GetListener(), partial_name).get(); 542 need_to_delete_process = true; 543 } 544 545 if (process) 546 { 547 matches.Clear(); 548 std::vector<lldb::pid_t> pids; 549 process->ListProcessesMatchingName (NULL, matches, pids); 550 if (need_to_delete_process) 551 target->DeleteCurrentProcess(); 552 return true; 553 } 554 } 555 556 return false; 557 } 558 559 // Options table: Required for subclasses of Options. 560 561 static lldb::OptionDefinition g_option_table[]; 562 563 // Instance variables to hold the values for command options. 564 565 lldb::pid_t pid; 566 std::string plugin_name; 567 std::string name; 568 bool waitfor; 569 }; 570 571 CommandObjectProcessAttach (CommandInterpreter &interpreter) : 572 CommandObject (interpreter, 573 "process attach", 574 "Attach to a process.", 575 "process attach <cmd-options>") 576 { 577 } 578 579 ~CommandObjectProcessAttach () 580 { 581 } 582 583 bool 584 Execute (Args& command, 585 CommandReturnObject &result) 586 { 587 Target *target = m_interpreter.GetDebugger().GetSelectedTarget().get(); 588 bool synchronous_execution = m_interpreter.GetSynchronous (); 589 590 Process *process = m_interpreter.GetDebugger().GetExecutionContext().process; 591 StateType state = eStateInvalid; 592 if (process) 593 { 594 state = process->GetState(); 595 if (process->IsAlive() && state != eStateConnected) 596 { 597 result.AppendErrorWithFormat ("Process %u is currently being debugged, kill the process before attaching.\n", 598 process->GetID()); 599 result.SetStatus (eReturnStatusFailed); 600 return false; 601 } 602 } 603 604 if (target == NULL) 605 { 606 // If there isn't a current target create one. 607 TargetSP new_target_sp; 608 FileSpec emptyFileSpec; 609 ArchSpec emptyArchSpec; 610 Error error; 611 612 error = m_interpreter.GetDebugger().GetTargetList().CreateTarget (m_interpreter.GetDebugger(), 613 emptyFileSpec, 614 emptyArchSpec, 615 NULL, 616 false, 617 new_target_sp); 618 target = new_target_sp.get(); 619 if (target == NULL || error.Fail()) 620 { 621 result.AppendError(error.AsCString("Error creating target")); 622 return false; 623 } 624 m_interpreter.GetDebugger().GetTargetList().SetSelectedTarget(target); 625 } 626 627 // Record the old executable module, we want to issue a warning if the process of attaching changed the 628 // current executable (like somebody said "file foo" then attached to a PID whose executable was bar.) 629 630 ModuleSP old_exec_module_sp = target->GetExecutableModule(); 631 ArchSpec old_arch_spec = target->GetArchitecture(); 632 633 if (command.GetArgumentCount()) 634 { 635 result.AppendErrorWithFormat("Invalid arguments for '%s'.\nUsage: \n", m_cmd_name.c_str(), m_cmd_syntax.c_str()); 636 result.SetStatus (eReturnStatusFailed); 637 } 638 else 639 { 640 if (state != eStateConnected) 641 { 642 const char *plugin_name = NULL; 643 644 if (!m_options.plugin_name.empty()) 645 plugin_name = m_options.plugin_name.c_str(); 646 647 process = target->CreateProcess (m_interpreter.GetDebugger().GetListener(), plugin_name).get(); 648 } 649 650 if (process) 651 { 652 Error error; 653 int attach_pid = m_options.pid; 654 655 const char *wait_name = NULL; 656 657 if (m_options.name.empty()) 658 { 659 if (old_exec_module_sp) 660 { 661 wait_name = old_exec_module_sp->GetFileSpec().GetFilename().AsCString(); 662 } 663 } 664 else 665 { 666 wait_name = m_options.name.c_str(); 667 } 668 669 // If we are waiting for a process with this name to show up, do that first. 670 if (m_options.waitfor) 671 { 672 673 if (wait_name == NULL) 674 { 675 result.AppendError("Invalid arguments: must have a file loaded or supply a process name with the waitfor option.\n"); 676 result.SetStatus (eReturnStatusFailed); 677 return false; 678 } 679 680 result.AppendMessageWithFormat("Waiting to attach to a process named \"%s\".\n", wait_name); 681 error = process->Attach (wait_name, m_options.waitfor); 682 if (error.Success()) 683 { 684 result.SetStatus (eReturnStatusSuccessContinuingNoResult); 685 } 686 else 687 { 688 result.AppendErrorWithFormat ("Waiting for a process to launch named '%s': %s\n", 689 wait_name, 690 error.AsCString()); 691 result.SetStatus (eReturnStatusFailed); 692 return false; 693 } 694 // If we're synchronous, wait for the stopped event and report that. 695 // Otherwise just return. 696 // FIXME: in the async case it will now be possible to get to the command 697 // interpreter with a state eStateAttaching. Make sure we handle that correctly. 698 if (synchronous_execution) 699 { 700 StateType state = process->WaitForProcessToStop (NULL); 701 702 result.SetDidChangeProcessState (true); 703 result.AppendMessageWithFormat ("Process %i %s\n", process->GetID(), StateAsCString (state)); 704 result.SetStatus (eReturnStatusSuccessFinishNoResult); 705 } 706 else 707 { 708 result.SetDidChangeProcessState (true); 709 result.SetStatus (eReturnStatusSuccessFinishNoResult); 710 } 711 } 712 else 713 { 714 // If the process was specified by name look it up, so we can warn if there are multiple 715 // processes with this pid. 716 717 if (attach_pid == LLDB_INVALID_PROCESS_ID && wait_name != NULL) 718 { 719 std::vector<lldb::pid_t> pids; 720 StringList matches; 721 722 process->ListProcessesMatchingName(wait_name, matches, pids); 723 if (matches.GetSize() > 1) 724 { 725 result.AppendErrorWithFormat("More than one process named %s\n", wait_name); 726 result.SetStatus (eReturnStatusFailed); 727 return false; 728 } 729 else if (matches.GetSize() == 0) 730 { 731 result.AppendErrorWithFormat("Could not find a process named %s\n", wait_name); 732 result.SetStatus (eReturnStatusFailed); 733 return false; 734 } 735 else 736 { 737 attach_pid = pids[0]; 738 } 739 740 } 741 742 if (attach_pid != LLDB_INVALID_PROCESS_ID) 743 { 744 error = process->Attach (attach_pid); 745 if (error.Success()) 746 { 747 result.SetStatus (eReturnStatusSuccessContinuingNoResult); 748 } 749 else 750 { 751 result.AppendErrorWithFormat ("Attaching to process %i failed: %s.\n", 752 attach_pid, 753 error.AsCString()); 754 result.SetStatus (eReturnStatusFailed); 755 } 756 // See comment for synchronous_execution above. 757 if (synchronous_execution) 758 { 759 StateType state = process->WaitForProcessToStop (NULL); 760 761 result.SetDidChangeProcessState (true); 762 result.AppendMessageWithFormat ("Process %i %s\n", process->GetID(), StateAsCString (state)); 763 result.SetStatus (eReturnStatusSuccessFinishNoResult); 764 } 765 else 766 { 767 result.SetDidChangeProcessState (true); 768 result.SetStatus (eReturnStatusSuccessFinishNoResult); 769 } 770 } 771 else 772 { 773 result.AppendErrorWithFormat ("No PID specified for attach\n", 774 attach_pid, 775 error.AsCString()); 776 result.SetStatus (eReturnStatusFailed); 777 778 } 779 } 780 } 781 } 782 783 if (result.Succeeded()) 784 { 785 // Okay, we're done. Last step is to warn if the executable module has changed: 786 char new_path[PATH_MAX]; 787 if (!old_exec_module_sp) 788 { 789 // We might not have a module if we attached to a raw pid... 790 ModuleSP new_module_sp (target->GetExecutableModule()); 791 if (new_module_sp) 792 { 793 new_module_sp->GetFileSpec().GetPath(new_path, PATH_MAX); 794 result.AppendMessageWithFormat("Executable module set to \"%s\".\n", new_path); 795 } 796 } 797 else if (old_exec_module_sp->GetFileSpec() != target->GetExecutableModule()->GetFileSpec()) 798 { 799 char old_path[PATH_MAX]; 800 801 old_exec_module_sp->GetFileSpec().GetPath(old_path, PATH_MAX); 802 target->GetExecutableModule()->GetFileSpec().GetPath (new_path, PATH_MAX); 803 804 result.AppendWarningWithFormat("Executable module changed from \"%s\" to \"%s\".\n", 805 old_path, new_path); 806 } 807 808 if (!old_arch_spec.IsValid()) 809 { 810 result.AppendMessageWithFormat ("Architecture set to: %s.\n", target->GetArchitecture().GetArchitectureName()); 811 } 812 else if (old_arch_spec != target->GetArchitecture()) 813 { 814 result.AppendWarningWithFormat("Architecture changed from %s to %s.\n", 815 old_arch_spec.GetArchitectureName(), target->GetArchitecture().GetArchitectureName()); 816 } 817 } 818 return result.Succeeded(); 819 } 820 821 Options * 822 GetOptions () 823 { 824 return &m_options; 825 } 826 827 protected: 828 829 CommandOptions m_options; 830 }; 831 832 833 lldb::OptionDefinition 834 CommandObjectProcessAttach::CommandOptions::g_option_table[] = 835 { 836 { LLDB_OPT_SET_ALL, false, "plugin", 'P', required_argument, NULL, 0, eArgTypePlugin, "Name of the process plugin you want to use."}, 837 { LLDB_OPT_SET_1, false, "pid", 'p', required_argument, NULL, 0, eArgTypePid, "The process ID of an existing process to attach to."}, 838 { LLDB_OPT_SET_2, false, "name", 'n', required_argument, NULL, 0, eArgTypeProcessName, "The name of the process to attach to."}, 839 { LLDB_OPT_SET_2, false, "waitfor",'w', no_argument, NULL, 0, eArgTypeNone, "Wait for the the process with <process-name> to launch."}, 840 { 0, false, NULL, 0, 0, NULL, 0, eArgTypeNone, NULL } 841 }; 842 843 //------------------------------------------------------------------------- 844 // CommandObjectProcessContinue 845 //------------------------------------------------------------------------- 846 #pragma mark CommandObjectProcessContinue 847 848 class CommandObjectProcessContinue : public CommandObject 849 { 850 public: 851 852 CommandObjectProcessContinue (CommandInterpreter &interpreter) : 853 CommandObject (interpreter, 854 "process continue", 855 "Continue execution of all threads in the current process.", 856 "process continue", 857 eFlagProcessMustBeLaunched | eFlagProcessMustBePaused) 858 { 859 } 860 861 862 ~CommandObjectProcessContinue () 863 { 864 } 865 866 bool 867 Execute (Args& command, 868 CommandReturnObject &result) 869 { 870 Process *process = m_interpreter.GetDebugger().GetExecutionContext().process; 871 bool synchronous_execution = m_interpreter.GetSynchronous (); 872 873 if (process == NULL) 874 { 875 result.AppendError ("no process to continue"); 876 result.SetStatus (eReturnStatusFailed); 877 return false; 878 } 879 880 StateType state = process->GetState(); 881 if (state == eStateStopped) 882 { 883 if (command.GetArgumentCount() != 0) 884 { 885 result.AppendErrorWithFormat ("The '%s' command does not take any arguments.\n", m_cmd_name.c_str()); 886 result.SetStatus (eReturnStatusFailed); 887 return false; 888 } 889 890 const uint32_t num_threads = process->GetThreadList().GetSize(); 891 892 // Set the actions that the threads should each take when resuming 893 for (uint32_t idx=0; idx<num_threads; ++idx) 894 { 895 process->GetThreadList().GetThreadAtIndex(idx)->SetResumeState (eStateRunning); 896 } 897 898 Error error(process->Resume()); 899 if (error.Success()) 900 { 901 result.AppendMessageWithFormat ("Process %i resuming\n", process->GetID()); 902 if (synchronous_execution) 903 { 904 state = process->WaitForProcessToStop (NULL); 905 906 result.SetDidChangeProcessState (true); 907 result.AppendMessageWithFormat ("Process %i %s\n", process->GetID(), StateAsCString (state)); 908 result.SetStatus (eReturnStatusSuccessFinishNoResult); 909 } 910 else 911 { 912 result.SetStatus (eReturnStatusSuccessContinuingNoResult); 913 } 914 } 915 else 916 { 917 result.AppendErrorWithFormat("Failed to resume process: %s.\n", error.AsCString()); 918 result.SetStatus (eReturnStatusFailed); 919 } 920 } 921 else 922 { 923 result.AppendErrorWithFormat ("Process cannot be continued from its current state (%s).\n", 924 StateAsCString(state)); 925 result.SetStatus (eReturnStatusFailed); 926 } 927 return result.Succeeded(); 928 } 929 }; 930 931 //------------------------------------------------------------------------- 932 // CommandObjectProcessDetach 933 //------------------------------------------------------------------------- 934 #pragma mark CommandObjectProcessDetach 935 936 class CommandObjectProcessDetach : public CommandObject 937 { 938 public: 939 940 CommandObjectProcessDetach (CommandInterpreter &interpreter) : 941 CommandObject (interpreter, 942 "process detach", 943 "Detach from the current process being debugged.", 944 "process detach", 945 eFlagProcessMustBeLaunched) 946 { 947 } 948 949 ~CommandObjectProcessDetach () 950 { 951 } 952 953 bool 954 Execute (Args& command, 955 CommandReturnObject &result) 956 { 957 Process *process = m_interpreter.GetDebugger().GetExecutionContext().process; 958 if (process == NULL) 959 { 960 result.AppendError ("must have a valid process in order to detach"); 961 result.SetStatus (eReturnStatusFailed); 962 return false; 963 } 964 965 result.AppendMessageWithFormat ("Detaching from process %i\n", process->GetID()); 966 Error error (process->Detach()); 967 if (error.Success()) 968 { 969 result.SetStatus (eReturnStatusSuccessFinishResult); 970 } 971 else 972 { 973 result.AppendErrorWithFormat ("Detach failed: %s\n", error.AsCString()); 974 result.SetStatus (eReturnStatusFailed); 975 return false; 976 } 977 return result.Succeeded(); 978 } 979 }; 980 981 //------------------------------------------------------------------------- 982 // CommandObjectProcessConnect 983 //------------------------------------------------------------------------- 984 #pragma mark CommandObjectProcessConnect 985 986 class CommandObjectProcessConnect : public CommandObject 987 { 988 public: 989 990 class CommandOptions : public Options 991 { 992 public: 993 994 CommandOptions () : 995 Options() 996 { 997 // Keep default values of all options in one place: ResetOptionValues () 998 ResetOptionValues (); 999 } 1000 1001 ~CommandOptions () 1002 { 1003 } 1004 1005 Error 1006 SetOptionValue (int option_idx, const char *option_arg) 1007 { 1008 Error error; 1009 char short_option = (char) m_getopt_table[option_idx].val; 1010 1011 switch (short_option) 1012 { 1013 case 'p': 1014 plugin_name.assign (option_arg); 1015 break; 1016 1017 default: 1018 error.SetErrorStringWithFormat("Invalid short option character '%c'.\n", short_option); 1019 break; 1020 } 1021 return error; 1022 } 1023 1024 void 1025 ResetOptionValues () 1026 { 1027 Options::ResetOptionValues(); 1028 plugin_name.clear(); 1029 } 1030 1031 const lldb::OptionDefinition* 1032 GetDefinitions () 1033 { 1034 return g_option_table; 1035 } 1036 1037 // Options table: Required for subclasses of Options. 1038 1039 static lldb::OptionDefinition g_option_table[]; 1040 1041 // Instance variables to hold the values for command options. 1042 1043 std::string plugin_name; 1044 }; 1045 1046 CommandObjectProcessConnect (CommandInterpreter &interpreter) : 1047 CommandObject (interpreter, 1048 "process connect", 1049 "Connect to a remote debug service.", 1050 "process connect <remote-url>", 1051 0) 1052 { 1053 } 1054 1055 ~CommandObjectProcessConnect () 1056 { 1057 } 1058 1059 1060 bool 1061 Execute (Args& command, 1062 CommandReturnObject &result) 1063 { 1064 1065 TargetSP target_sp (m_interpreter.GetDebugger().GetSelectedTarget()); 1066 Error error; 1067 Process *process = m_interpreter.GetDebugger().GetExecutionContext().process; 1068 if (process) 1069 { 1070 if (process->IsAlive()) 1071 { 1072 result.AppendErrorWithFormat ("Process %u is currently being debugged, kill the process before connecting.\n", 1073 process->GetID()); 1074 result.SetStatus (eReturnStatusFailed); 1075 return false; 1076 } 1077 } 1078 1079 if (!target_sp) 1080 { 1081 // If there isn't a current target create one. 1082 FileSpec emptyFileSpec; 1083 ArchSpec emptyArchSpec; 1084 1085 error = m_interpreter.GetDebugger().GetTargetList().CreateTarget (m_interpreter.GetDebugger(), 1086 emptyFileSpec, 1087 emptyArchSpec, 1088 NULL, 1089 false, 1090 target_sp); 1091 if (!target_sp || error.Fail()) 1092 { 1093 result.AppendError(error.AsCString("Error creating target")); 1094 result.SetStatus (eReturnStatusFailed); 1095 return false; 1096 } 1097 m_interpreter.GetDebugger().GetTargetList().SetSelectedTarget(target_sp.get()); 1098 } 1099 1100 if (command.GetArgumentCount() == 1) 1101 { 1102 const char *plugin_name = NULL; 1103 if (!m_options.plugin_name.empty()) 1104 plugin_name = m_options.plugin_name.c_str(); 1105 1106 const char *remote_url = command.GetArgumentAtIndex(0); 1107 process = target_sp->CreateProcess (m_interpreter.GetDebugger().GetListener(), plugin_name).get(); 1108 1109 if (process) 1110 { 1111 error = process->ConnectRemote (remote_url); 1112 1113 if (error.Fail()) 1114 { 1115 result.AppendError(error.AsCString("Remote connect failed")); 1116 result.SetStatus (eReturnStatusFailed); 1117 return false; 1118 } 1119 } 1120 else 1121 { 1122 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", 1123 m_cmd_name.c_str(), 1124 m_cmd_syntax.c_str()); 1125 result.SetStatus (eReturnStatusFailed); 1126 } 1127 } 1128 else 1129 { 1130 result.AppendErrorWithFormat ("'%s' takes exactly one argument:\nUsage: \n", 1131 m_cmd_name.c_str(), 1132 m_cmd_syntax.c_str()); 1133 result.SetStatus (eReturnStatusFailed); 1134 } 1135 return result.Succeeded(); 1136 } 1137 1138 Options * 1139 GetOptions () 1140 { 1141 return &m_options; 1142 } 1143 1144 protected: 1145 1146 CommandOptions m_options; 1147 }; 1148 1149 1150 lldb::OptionDefinition 1151 CommandObjectProcessConnect::CommandOptions::g_option_table[] = 1152 { 1153 { LLDB_OPT_SET_ALL, false, "plugin", 'p', required_argument, NULL, 0, eArgTypePlugin, "Name of the process plugin you want to use."}, 1154 { 0, false, NULL, 0 , 0, NULL, 0, eArgTypeNone, NULL } 1155 }; 1156 1157 //------------------------------------------------------------------------- 1158 // CommandObjectProcessLoad 1159 //------------------------------------------------------------------------- 1160 #pragma mark CommandObjectProcessLoad 1161 1162 class CommandObjectProcessLoad : public CommandObject 1163 { 1164 public: 1165 1166 CommandObjectProcessLoad (CommandInterpreter &interpreter) : 1167 CommandObject (interpreter, 1168 "process load", 1169 "Load a shared library into the current process.", 1170 "process load <filename> [<filename> ...]", 1171 eFlagProcessMustBeLaunched | eFlagProcessMustBePaused) 1172 { 1173 } 1174 1175 ~CommandObjectProcessLoad () 1176 { 1177 } 1178 1179 bool 1180 Execute (Args& command, 1181 CommandReturnObject &result) 1182 { 1183 Process *process = m_interpreter.GetDebugger().GetExecutionContext().process; 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 Error error; 1196 const char *image_path = command.GetArgumentAtIndex(i); 1197 FileSpec image_spec (image_path, false); 1198 uint32_t image_token = process->LoadImage(image_spec, error); 1199 if (image_token != LLDB_INVALID_IMAGE_TOKEN) 1200 { 1201 result.AppendMessageWithFormat ("Loading \"%s\"...ok\nImage %u loaded.\n", image_path, image_token); 1202 result.SetStatus (eReturnStatusSuccessFinishResult); 1203 } 1204 else 1205 { 1206 result.AppendErrorWithFormat ("failed to load '%s': %s", image_path, error.AsCString()); 1207 result.SetStatus (eReturnStatusFailed); 1208 } 1209 } 1210 return result.Succeeded(); 1211 } 1212 }; 1213 1214 1215 //------------------------------------------------------------------------- 1216 // CommandObjectProcessUnload 1217 //------------------------------------------------------------------------- 1218 #pragma mark CommandObjectProcessUnload 1219 1220 class CommandObjectProcessUnload : public CommandObject 1221 { 1222 public: 1223 1224 CommandObjectProcessUnload (CommandInterpreter &interpreter) : 1225 CommandObject (interpreter, 1226 "process unload", 1227 "Unload a shared library from the current process using the index returned by a previous call to \"process load\".", 1228 "process unload <index>", 1229 eFlagProcessMustBeLaunched | eFlagProcessMustBePaused) 1230 { 1231 } 1232 1233 ~CommandObjectProcessUnload () 1234 { 1235 } 1236 1237 bool 1238 Execute (Args& command, 1239 CommandReturnObject &result) 1240 { 1241 Process *process = m_interpreter.GetDebugger().GetExecutionContext().process; 1242 if (process == NULL) 1243 { 1244 result.AppendError ("must have a valid process in order to load a shared library"); 1245 result.SetStatus (eReturnStatusFailed); 1246 return false; 1247 } 1248 1249 const uint32_t argc = command.GetArgumentCount(); 1250 1251 for (uint32_t i=0; i<argc; ++i) 1252 { 1253 const char *image_token_cstr = command.GetArgumentAtIndex(i); 1254 uint32_t image_token = Args::StringToUInt32(image_token_cstr, LLDB_INVALID_IMAGE_TOKEN, 0); 1255 if (image_token == LLDB_INVALID_IMAGE_TOKEN) 1256 { 1257 result.AppendErrorWithFormat ("invalid image index argument '%s'", image_token_cstr); 1258 result.SetStatus (eReturnStatusFailed); 1259 break; 1260 } 1261 else 1262 { 1263 Error error (process->UnloadImage(image_token)); 1264 if (error.Success()) 1265 { 1266 result.AppendMessageWithFormat ("Unloading shared library with index %u...ok\n", image_token); 1267 result.SetStatus (eReturnStatusSuccessFinishResult); 1268 } 1269 else 1270 { 1271 result.AppendErrorWithFormat ("failed to unload image: %s", error.AsCString()); 1272 result.SetStatus (eReturnStatusFailed); 1273 break; 1274 } 1275 } 1276 } 1277 return result.Succeeded(); 1278 } 1279 }; 1280 1281 //------------------------------------------------------------------------- 1282 // CommandObjectProcessSignal 1283 //------------------------------------------------------------------------- 1284 #pragma mark CommandObjectProcessSignal 1285 1286 class CommandObjectProcessSignal : public CommandObject 1287 { 1288 public: 1289 1290 CommandObjectProcessSignal (CommandInterpreter &interpreter) : 1291 CommandObject (interpreter, 1292 "process signal", 1293 "Send a UNIX signal to the current process being debugged.", 1294 NULL) 1295 { 1296 CommandArgumentEntry arg; 1297 CommandArgumentData signal_arg; 1298 1299 // Define the first (and only) variant of this arg. 1300 signal_arg.arg_type = eArgTypeUnixSignal; 1301 signal_arg.arg_repetition = eArgRepeatPlain; 1302 1303 // There is only one variant this argument could be; put it into the argument entry. 1304 arg.push_back (signal_arg); 1305 1306 // Push the data for the first argument into the m_arguments vector. 1307 m_arguments.push_back (arg); 1308 } 1309 1310 ~CommandObjectProcessSignal () 1311 { 1312 } 1313 1314 bool 1315 Execute (Args& command, 1316 CommandReturnObject &result) 1317 { 1318 Process *process = m_interpreter.GetDebugger().GetExecutionContext().process; 1319 if (process == NULL) 1320 { 1321 result.AppendError ("no process to signal"); 1322 result.SetStatus (eReturnStatusFailed); 1323 return false; 1324 } 1325 1326 if (command.GetArgumentCount() == 1) 1327 { 1328 int signo = LLDB_INVALID_SIGNAL_NUMBER; 1329 1330 const char *signal_name = command.GetArgumentAtIndex(0); 1331 if (::isxdigit (signal_name[0])) 1332 signo = Args::StringToSInt32(signal_name, LLDB_INVALID_SIGNAL_NUMBER, 0); 1333 else 1334 signo = process->GetUnixSignals().GetSignalNumberFromName (signal_name); 1335 1336 if (signo == LLDB_INVALID_SIGNAL_NUMBER) 1337 { 1338 result.AppendErrorWithFormat ("Invalid signal argument '%s'.\n", command.GetArgumentAtIndex(0)); 1339 result.SetStatus (eReturnStatusFailed); 1340 } 1341 else 1342 { 1343 Error error (process->Signal (signo)); 1344 if (error.Success()) 1345 { 1346 result.SetStatus (eReturnStatusSuccessFinishResult); 1347 } 1348 else 1349 { 1350 result.AppendErrorWithFormat ("Failed to send signal %i: %s\n", signo, error.AsCString()); 1351 result.SetStatus (eReturnStatusFailed); 1352 } 1353 } 1354 } 1355 else 1356 { 1357 result.AppendErrorWithFormat("'%s' takes exactly one signal number argument:\nUsage: \n", m_cmd_name.c_str(), 1358 m_cmd_syntax.c_str()); 1359 result.SetStatus (eReturnStatusFailed); 1360 } 1361 return result.Succeeded(); 1362 } 1363 }; 1364 1365 1366 //------------------------------------------------------------------------- 1367 // CommandObjectProcessInterrupt 1368 //------------------------------------------------------------------------- 1369 #pragma mark CommandObjectProcessInterrupt 1370 1371 class CommandObjectProcessInterrupt : public CommandObject 1372 { 1373 public: 1374 1375 1376 CommandObjectProcessInterrupt (CommandInterpreter &interpreter) : 1377 CommandObject (interpreter, 1378 "process interrupt", 1379 "Interrupt the current process being debugged.", 1380 "process interrupt", 1381 eFlagProcessMustBeLaunched) 1382 { 1383 } 1384 1385 ~CommandObjectProcessInterrupt () 1386 { 1387 } 1388 1389 bool 1390 Execute (Args& command, 1391 CommandReturnObject &result) 1392 { 1393 Process *process = m_interpreter.GetDebugger().GetExecutionContext().process; 1394 if (process == NULL) 1395 { 1396 result.AppendError ("no process to halt"); 1397 result.SetStatus (eReturnStatusFailed); 1398 return false; 1399 } 1400 1401 if (command.GetArgumentCount() == 0) 1402 { 1403 Error error(process->Halt ()); 1404 if (error.Success()) 1405 { 1406 result.SetStatus (eReturnStatusSuccessFinishResult); 1407 1408 // Maybe we should add a "SuspendThreadPlans so we 1409 // can halt, and keep in place all the current thread plans. 1410 process->GetThreadList().DiscardThreadPlans(); 1411 } 1412 else 1413 { 1414 result.AppendErrorWithFormat ("Failed to halt process: %s\n", error.AsCString()); 1415 result.SetStatus (eReturnStatusFailed); 1416 } 1417 } 1418 else 1419 { 1420 result.AppendErrorWithFormat("'%s' takes no arguments:\nUsage: \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 // CommandObjectProcessKill 1431 //------------------------------------------------------------------------- 1432 #pragma mark CommandObjectProcessKill 1433 1434 class CommandObjectProcessKill : public CommandObject 1435 { 1436 public: 1437 1438 CommandObjectProcessKill (CommandInterpreter &interpreter) : 1439 CommandObject (interpreter, 1440 "process kill", 1441 "Terminate the current process being debugged.", 1442 "process kill", 1443 eFlagProcessMustBeLaunched) 1444 { 1445 } 1446 1447 ~CommandObjectProcessKill () 1448 { 1449 } 1450 1451 bool 1452 Execute (Args& command, 1453 CommandReturnObject &result) 1454 { 1455 Process *process = m_interpreter.GetDebugger().GetExecutionContext().process; 1456 if (process == NULL) 1457 { 1458 result.AppendError ("no process to kill"); 1459 result.SetStatus (eReturnStatusFailed); 1460 return false; 1461 } 1462 1463 if (command.GetArgumentCount() == 0) 1464 { 1465 Error error (process->Destroy()); 1466 if (error.Success()) 1467 { 1468 result.SetStatus (eReturnStatusSuccessFinishResult); 1469 } 1470 else 1471 { 1472 result.AppendErrorWithFormat ("Failed to kill process: %s\n", error.AsCString()); 1473 result.SetStatus (eReturnStatusFailed); 1474 } 1475 } 1476 else 1477 { 1478 result.AppendErrorWithFormat("'%s' takes no arguments:\nUsage: \n", 1479 m_cmd_name.c_str(), 1480 m_cmd_syntax.c_str()); 1481 result.SetStatus (eReturnStatusFailed); 1482 } 1483 return result.Succeeded(); 1484 } 1485 }; 1486 1487 //------------------------------------------------------------------------- 1488 // CommandObjectProcessStatus 1489 //------------------------------------------------------------------------- 1490 #pragma mark CommandObjectProcessStatus 1491 1492 class CommandObjectProcessStatus : public CommandObject 1493 { 1494 public: 1495 CommandObjectProcessStatus (CommandInterpreter &interpreter) : 1496 CommandObject (interpreter, 1497 "process status", 1498 "Show the current status and location of executing process.", 1499 "process status", 1500 0) 1501 { 1502 } 1503 1504 ~CommandObjectProcessStatus() 1505 { 1506 } 1507 1508 1509 bool 1510 Execute 1511 ( 1512 Args& command, 1513 CommandReturnObject &result 1514 ) 1515 { 1516 Stream &output_stream = result.GetOutputStream(); 1517 result.SetStatus (eReturnStatusSuccessFinishNoResult); 1518 ExecutionContext exe_ctx(m_interpreter.GetDebugger().GetExecutionContext()); 1519 if (exe_ctx.process) 1520 { 1521 const StateType state = exe_ctx.process->GetState(); 1522 if (StateIsStoppedState(state)) 1523 { 1524 if (state == eStateExited) 1525 { 1526 int exit_status = exe_ctx.process->GetExitStatus(); 1527 const char *exit_description = exe_ctx.process->GetExitDescription(); 1528 output_stream.Printf ("Process %d exited with status = %i (0x%8.8x) %s\n", 1529 exe_ctx.process->GetID(), 1530 exit_status, 1531 exit_status, 1532 exit_description ? exit_description : ""); 1533 } 1534 else 1535 { 1536 if (state == eStateConnected) 1537 output_stream.Printf ("Connected to remote target.\n"); 1538 else 1539 output_stream.Printf ("Process %d %s\n", exe_ctx.process->GetID(), StateAsCString (state)); 1540 if (exe_ctx.thread == NULL) 1541 exe_ctx.thread = exe_ctx.process->GetThreadList().GetThreadAtIndex(0).get(); 1542 if (exe_ctx.thread != NULL) 1543 { 1544 DisplayThreadsInfo (m_interpreter, &exe_ctx, result, true, true); 1545 } 1546 else 1547 { 1548 result.AppendError ("No valid thread found in current process."); 1549 result.SetStatus (eReturnStatusFailed); 1550 } 1551 } 1552 } 1553 else 1554 { 1555 output_stream.Printf ("Process %d is running.\n", 1556 exe_ctx.process->GetID()); 1557 } 1558 } 1559 else 1560 { 1561 result.AppendError ("No current location or status available."); 1562 result.SetStatus (eReturnStatusFailed); 1563 } 1564 return result.Succeeded(); 1565 } 1566 }; 1567 1568 //------------------------------------------------------------------------- 1569 // CommandObjectProcessHandle 1570 //------------------------------------------------------------------------- 1571 #pragma mark CommandObjectProcessHandle 1572 1573 class CommandObjectProcessHandle : public CommandObject 1574 { 1575 public: 1576 1577 class CommandOptions : public Options 1578 { 1579 public: 1580 1581 CommandOptions () : 1582 Options () 1583 { 1584 ResetOptionValues (); 1585 } 1586 1587 ~CommandOptions () 1588 { 1589 } 1590 1591 Error 1592 SetOptionValue (int option_idx, const char *option_arg) 1593 { 1594 Error error; 1595 char short_option = (char) m_getopt_table[option_idx].val; 1596 1597 switch (short_option) 1598 { 1599 case 's': 1600 stop = option_arg; 1601 break; 1602 case 'n': 1603 notify = option_arg; 1604 break; 1605 case 'p': 1606 pass = option_arg; 1607 break; 1608 default: 1609 error.SetErrorStringWithFormat("Invalid short option character '%c'.\n", short_option); 1610 break; 1611 } 1612 return error; 1613 } 1614 1615 void 1616 ResetOptionValues () 1617 { 1618 Options::ResetOptionValues(); 1619 stop.clear(); 1620 notify.clear(); 1621 pass.clear(); 1622 } 1623 1624 const lldb::OptionDefinition* 1625 GetDefinitions () 1626 { 1627 return g_option_table; 1628 } 1629 1630 // Options table: Required for subclasses of Options. 1631 1632 static lldb::OptionDefinition g_option_table[]; 1633 1634 // Instance variables to hold the values for command options. 1635 1636 std::string stop; 1637 std::string notify; 1638 std::string pass; 1639 }; 1640 1641 1642 CommandObjectProcessHandle (CommandInterpreter &interpreter) : 1643 CommandObject (interpreter, 1644 "process handle", 1645 "Show or update what the process and debugger should do with various signals received from the OS.", 1646 NULL) 1647 { 1648 SetHelpLong ("If no signals are specified, update them all. If no update option is specified, list the current values.\n"); 1649 CommandArgumentEntry arg; 1650 CommandArgumentData signal_arg; 1651 1652 signal_arg.arg_type = eArgTypeUnixSignal; 1653 signal_arg.arg_repetition = eArgRepeatStar; 1654 1655 arg.push_back (signal_arg); 1656 1657 m_arguments.push_back (arg); 1658 } 1659 1660 ~CommandObjectProcessHandle () 1661 { 1662 } 1663 1664 Options * 1665 GetOptions () 1666 { 1667 return &m_options; 1668 } 1669 1670 bool 1671 VerifyCommandOptionValue (const std::string &option, int &real_value) 1672 { 1673 bool okay = true; 1674 1675 bool success = false; 1676 bool tmp_value = Args::StringToBoolean (option.c_str(), false, &success); 1677 1678 if (success && tmp_value) 1679 real_value = 1; 1680 else if (success && !tmp_value) 1681 real_value = 0; 1682 else 1683 { 1684 // If the value isn't 'true' or 'false', it had better be 0 or 1. 1685 real_value = Args::StringToUInt32 (option.c_str(), 3); 1686 if (real_value != 0 && real_value != 1) 1687 okay = false; 1688 } 1689 1690 return okay; 1691 } 1692 1693 void 1694 PrintSignalHeader (Stream &str) 1695 { 1696 str.Printf ("NAME PASS STOP NOTIFY\n"); 1697 str.Printf ("========== ===== ===== ======\n"); 1698 } 1699 1700 void 1701 PrintSignal (Stream &str, int32_t signo, const char *sig_name, UnixSignals &signals) 1702 { 1703 bool stop; 1704 bool suppress; 1705 bool notify; 1706 1707 str.Printf ("%-10s ", sig_name); 1708 if (signals.GetSignalInfo (signo, suppress, stop, notify)) 1709 { 1710 bool pass = !suppress; 1711 str.Printf ("%s %s %s", 1712 (pass ? "true " : "false"), 1713 (stop ? "true " : "false"), 1714 (notify ? "true " : "false")); 1715 } 1716 str.Printf ("\n"); 1717 } 1718 1719 void 1720 PrintSignalInformation (Stream &str, Args &signal_args, int num_valid_signals, UnixSignals &signals) 1721 { 1722 PrintSignalHeader (str); 1723 1724 if (num_valid_signals > 0) 1725 { 1726 size_t num_args = signal_args.GetArgumentCount(); 1727 for (size_t i = 0; i < num_args; ++i) 1728 { 1729 int32_t signo = signals.GetSignalNumberFromName (signal_args.GetArgumentAtIndex (i)); 1730 if (signo != LLDB_INVALID_SIGNAL_NUMBER) 1731 PrintSignal (str, signo, signal_args.GetArgumentAtIndex (i), signals); 1732 } 1733 } 1734 else // Print info for ALL signals 1735 { 1736 int32_t signo = signals.GetFirstSignalNumber(); 1737 while (signo != LLDB_INVALID_SIGNAL_NUMBER) 1738 { 1739 PrintSignal (str, signo, signals.GetSignalAsCString (signo), signals); 1740 signo = signals.GetNextSignalNumber (signo); 1741 } 1742 } 1743 } 1744 1745 bool 1746 Execute (Args &signal_args, CommandReturnObject &result) 1747 { 1748 TargetSP target_sp = m_interpreter.GetDebugger().GetSelectedTarget(); 1749 1750 if (!target_sp) 1751 { 1752 result.AppendError ("No current target;" 1753 " cannot handle signals until you have a valid target and process.\n"); 1754 result.SetStatus (eReturnStatusFailed); 1755 return false; 1756 } 1757 1758 ProcessSP process_sp = target_sp->GetProcessSP(); 1759 1760 if (!process_sp) 1761 { 1762 result.AppendError ("No current process; cannot handle signals until you have a valid process.\n"); 1763 result.SetStatus (eReturnStatusFailed); 1764 return false; 1765 } 1766 1767 int stop_action = -1; // -1 means leave the current setting alone 1768 int pass_action = -1; // -1 means leave the current setting alone 1769 int notify_action = -1; // -1 means leave the current setting alone 1770 1771 if (! m_options.stop.empty() 1772 && ! VerifyCommandOptionValue (m_options.stop, stop_action)) 1773 { 1774 result.AppendError ("Invalid argument for command option --stop; must be true or false.\n"); 1775 result.SetStatus (eReturnStatusFailed); 1776 return false; 1777 } 1778 1779 if (! m_options.notify.empty() 1780 && ! VerifyCommandOptionValue (m_options.notify, notify_action)) 1781 { 1782 result.AppendError ("Invalid argument for command option --notify; must be true or false.\n"); 1783 result.SetStatus (eReturnStatusFailed); 1784 return false; 1785 } 1786 1787 if (! m_options.pass.empty() 1788 && ! VerifyCommandOptionValue (m_options.pass, pass_action)) 1789 { 1790 result.AppendError ("Invalid argument for command option --pass; must be true or false.\n"); 1791 result.SetStatus (eReturnStatusFailed); 1792 return false; 1793 } 1794 1795 size_t num_args = signal_args.GetArgumentCount(); 1796 UnixSignals &signals = process_sp->GetUnixSignals(); 1797 int num_signals_set = 0; 1798 1799 if (num_args > 0) 1800 { 1801 for (size_t i = 0; i < num_args; ++i) 1802 { 1803 int32_t signo = signals.GetSignalNumberFromName (signal_args.GetArgumentAtIndex (i)); 1804 if (signo != LLDB_INVALID_SIGNAL_NUMBER) 1805 { 1806 // Casting the actions as bools here should be okay, because VerifyCommandOptionValue guarantees 1807 // the value is either 0 or 1. 1808 if (stop_action != -1) 1809 signals.SetShouldStop (signo, (bool) stop_action); 1810 if (pass_action != -1) 1811 { 1812 bool suppress = ! ((bool) pass_action); 1813 signals.SetShouldSuppress (signo, suppress); 1814 } 1815 if (notify_action != -1) 1816 signals.SetShouldNotify (signo, (bool) notify_action); 1817 ++num_signals_set; 1818 } 1819 else 1820 { 1821 result.AppendErrorWithFormat ("Invalid signal name '%s'\n", signal_args.GetArgumentAtIndex (i)); 1822 } 1823 } 1824 } 1825 else 1826 { 1827 // No signal specified, if any command options were specified, update ALL signals. 1828 if ((notify_action != -1) || (stop_action != -1) || (pass_action != -1)) 1829 { 1830 if (m_interpreter.Confirm ("Do you really want to update all the signals?", false)) 1831 { 1832 int32_t signo = signals.GetFirstSignalNumber(); 1833 while (signo != LLDB_INVALID_SIGNAL_NUMBER) 1834 { 1835 if (notify_action != -1) 1836 signals.SetShouldNotify (signo, (bool) notify_action); 1837 if (stop_action != -1) 1838 signals.SetShouldStop (signo, (bool) stop_action); 1839 if (pass_action != -1) 1840 { 1841 bool suppress = ! ((bool) pass_action); 1842 signals.SetShouldSuppress (signo, suppress); 1843 } 1844 signo = signals.GetNextSignalNumber (signo); 1845 } 1846 } 1847 } 1848 } 1849 1850 PrintSignalInformation (result.GetOutputStream(), signal_args, num_signals_set, signals); 1851 1852 if (num_signals_set > 0) 1853 result.SetStatus (eReturnStatusSuccessFinishNoResult); 1854 else 1855 result.SetStatus (eReturnStatusFailed); 1856 1857 return result.Succeeded(); 1858 } 1859 1860 protected: 1861 1862 CommandOptions m_options; 1863 }; 1864 1865 lldb::OptionDefinition 1866 CommandObjectProcessHandle::CommandOptions::g_option_table[] = 1867 { 1868 { 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." }, 1869 { 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." }, 1870 { LLDB_OPT_SET_1, false, "pass", 'p', required_argument, NULL, 0, eArgTypeBoolean, "Whether or not the signal should be passed to the process." }, 1871 { 0, false, NULL, 0, 0, NULL, 0, eArgTypeNone, NULL } 1872 }; 1873 1874 //------------------------------------------------------------------------- 1875 // CommandObjectMultiwordProcess 1876 //------------------------------------------------------------------------- 1877 1878 CommandObjectMultiwordProcess::CommandObjectMultiwordProcess (CommandInterpreter &interpreter) : 1879 CommandObjectMultiword (interpreter, 1880 "process", 1881 "A set of commands for operating on a process.", 1882 "process <subcommand> [<subcommand-options>]") 1883 { 1884 LoadSubCommand ("attach", CommandObjectSP (new CommandObjectProcessAttach (interpreter))); 1885 LoadSubCommand ("launch", CommandObjectSP (new CommandObjectProcessLaunch (interpreter))); 1886 LoadSubCommand ("continue", CommandObjectSP (new CommandObjectProcessContinue (interpreter))); 1887 LoadSubCommand ("connect", CommandObjectSP (new CommandObjectProcessConnect (interpreter))); 1888 LoadSubCommand ("detach", CommandObjectSP (new CommandObjectProcessDetach (interpreter))); 1889 LoadSubCommand ("load", CommandObjectSP (new CommandObjectProcessLoad (interpreter))); 1890 LoadSubCommand ("unload", CommandObjectSP (new CommandObjectProcessUnload (interpreter))); 1891 LoadSubCommand ("signal", CommandObjectSP (new CommandObjectProcessSignal (interpreter))); 1892 LoadSubCommand ("handle", CommandObjectSP (new CommandObjectProcessHandle (interpreter))); 1893 LoadSubCommand ("status", CommandObjectSP (new CommandObjectProcessStatus (interpreter))); 1894 LoadSubCommand ("interrupt", CommandObjectSP (new CommandObjectProcessInterrupt (interpreter))); 1895 LoadSubCommand ("kill", CommandObjectSP (new CommandObjectProcessKill (interpreter))); 1896 } 1897 1898 CommandObjectMultiwordProcess::~CommandObjectMultiwordProcess () 1899 { 1900 } 1901 1902