1 //===-- CommandObjectProcess.cpp --------------------------------*- C++ -*-===// 2 // 3 // The LLVM Compiler Infrastructure 4 // 5 // This file is distributed under the University of Illinois Open Source 6 // License. See LICENSE.TXT for details. 7 // 8 //===----------------------------------------------------------------------===// 9 10 #include "CommandObjectProcess.h" 11 12 // C Includes 13 // C++ Includes 14 // Other libraries and framework includes 15 // Project includes 16 #include "lldb/Interpreter/Args.h" 17 #include "lldb/Interpreter/Options.h" 18 #include "lldb/Core/State.h" 19 #include "lldb/Host/Host.h" 20 #include "lldb/Interpreter/CommandInterpreter.h" 21 #include "lldb/Interpreter/CommandReturnObject.h" 22 #include "lldb/Target/Platform.h" 23 #include "lldb/Target/Process.h" 24 #include "lldb/Target/Target.h" 25 #include "lldb/Target/Thread.h" 26 27 using namespace lldb; 28 using namespace lldb_private; 29 30 //------------------------------------------------------------------------- 31 // CommandObjectProcessLaunch 32 //------------------------------------------------------------------------- 33 #pragma mark CommandObjectProjectLaunch 34 class CommandObjectProcessLaunch : public CommandObject 35 { 36 public: 37 38 class CommandOptions : public Options 39 { 40 public: 41 42 CommandOptions (CommandInterpreter &interpreter) : 43 Options(interpreter) 44 { 45 // Keep default values of all options in one place: OptionParsingStarting () 46 OptionParsingStarting (); 47 } 48 49 ~CommandOptions () 50 { 51 } 52 53 Error 54 SetOptionValue (uint32_t option_idx, const char *option_arg) 55 { 56 Error error; 57 char short_option = (char) m_getopt_table[option_idx].val; 58 59 switch (short_option) 60 { 61 case 's': stop_at_entry = true; break; 62 case 'e': stderr_path.assign (option_arg); break; 63 case 'i': stdin_path.assign (option_arg); break; 64 case 'o': stdout_path.assign (option_arg); break; 65 case 'p': plugin_name.assign (option_arg); break; 66 case 'n': no_stdio = true; break; 67 case 'w': working_dir.assign (option_arg); break; 68 case 't': 69 if (option_arg && option_arg[0]) 70 tty_name.assign (option_arg); 71 in_new_tty = true; 72 break; 73 default: 74 error.SetErrorStringWithFormat("Invalid short option character '%c'.\n", short_option); 75 break; 76 77 } 78 return error; 79 } 80 81 void 82 OptionParsingStarting () 83 { 84 stop_at_entry = false; 85 in_new_tty = false; 86 tty_name.clear(); 87 stdin_path.clear(); 88 stdout_path.clear(); 89 stderr_path.clear(); 90 plugin_name.clear(); 91 working_dir.clear(); 92 no_stdio = false; 93 } 94 95 const OptionDefinition* 96 GetDefinitions () 97 { 98 return g_option_table; 99 } 100 101 // Options table: Required for subclasses of Options. 102 103 static OptionDefinition g_option_table[]; 104 105 // Instance variables to hold the values for command options. 106 107 bool stop_at_entry; 108 bool in_new_tty; 109 bool no_stdio; 110 std::string tty_name; 111 std::string stderr_path; 112 std::string stdin_path; 113 std::string stdout_path; 114 std::string plugin_name; 115 std::string working_dir; 116 117 }; 118 119 CommandObjectProcessLaunch (CommandInterpreter &interpreter) : 120 CommandObject (interpreter, 121 "process launch", 122 "Launch the executable in the debugger.", 123 NULL), 124 m_options (interpreter) 125 { 126 CommandArgumentEntry arg; 127 CommandArgumentData run_args_arg; 128 129 // Define the first (and only) variant of this arg. 130 run_args_arg.arg_type = eArgTypeRunArgs; 131 run_args_arg.arg_repetition = eArgRepeatOptional; 132 133 // There is only one variant this argument could be; put it into the argument entry. 134 arg.push_back (run_args_arg); 135 136 // Push the data for the first argument into the m_arguments vector. 137 m_arguments.push_back (arg); 138 } 139 140 141 ~CommandObjectProcessLaunch () 142 { 143 } 144 145 Options * 146 GetOptions () 147 { 148 return &m_options; 149 } 150 151 bool 152 Execute (Args& launch_args, CommandReturnObject &result) 153 { 154 Target *target = m_interpreter.GetDebugger().GetSelectedTarget().get(); 155 156 if (target == NULL) 157 { 158 result.AppendError ("invalid target, create a debug target using the 'target create' 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->GetExecutableModulePointer(); 166 167 if (exe_module == NULL) 168 { 169 result.AppendError ("no file in target, create a debug target using the 'target create' 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.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.in_new_tty) 270 launch_flags |= eLaunchFlagLaunchInTTY; 271 272 if (m_options.no_stdio) 273 launch_flags |= eLaunchFlagDisableSTDIO; 274 else if (!m_options.in_new_tty 275 && m_options.stdin_path.empty() 276 && m_options.stdout_path.empty() 277 && m_options.stderr_path.empty()) 278 { 279 // Only use the settings value if the user hasn't specified any options that would override it. 280 if (process->GetDisableSTDIO()) 281 launch_flags |= eLaunchFlagDisableSTDIO; 282 } 283 284 const char **inferior_argv = launch_args.GetArgumentCount() ? launch_args.GetConstArgumentVector() : NULL; 285 const char **inferior_envp = environment.GetArgumentCount() ? environment.GetConstArgumentVector() : NULL; 286 287 Error error; 288 const char *working_dir = NULL; 289 if (!m_options.working_dir.empty()) 290 working_dir = m_options.working_dir.c_str(); 291 292 const char * stdin_path = NULL; 293 const char * stdout_path = NULL; 294 const char * stderr_path = NULL; 295 296 // Were any standard input/output/error paths given on the command line? 297 if (m_options.stdin_path.empty() && 298 m_options.stdout_path.empty() && 299 m_options.stderr_path.empty()) 300 { 301 // No standard file handles were given on the command line, check 302 // with the process object in case they were give using "set settings" 303 stdin_path = process->GetStandardInputPath(); 304 stdout_path = process->GetStandardOutputPath(); 305 stderr_path = process->GetStandardErrorPath(); 306 } 307 else 308 { 309 stdin_path = m_options.stdin_path.empty() ? NULL : m_options.stdin_path.c_str(); 310 stdout_path = m_options.stdout_path.empty() ? NULL : m_options.stdout_path.c_str(); 311 stderr_path = m_options.stderr_path.empty() ? NULL : m_options.stderr_path.c_str(); 312 } 313 314 error = process->Launch (inferior_argv, 315 inferior_envp, 316 launch_flags, 317 stdin_path, 318 stdout_path, 319 stderr_path, 320 working_dir); 321 322 if (error.Success()) 323 { 324 const char *archname = exe_module->GetArchitecture().GetArchitectureName(); 325 326 result.AppendMessageWithFormat ("Process %i launched: '%s' (%s)\n", process->GetID(), filename, archname); 327 result.SetDidChangeProcessState (true); 328 if (m_options.stop_at_entry == false) 329 { 330 result.SetStatus (eReturnStatusSuccessContinuingNoResult); 331 StateType state = process->WaitForProcessToStop (NULL); 332 333 if (state == eStateStopped) 334 { 335 error = process->Resume(); 336 if (error.Success()) 337 { 338 bool synchronous_execution = m_interpreter.GetSynchronous (); 339 if (synchronous_execution) 340 { 341 state = process->WaitForProcessToStop (NULL); 342 if (!StateIsStoppedState(state)) 343 { 344 result.AppendErrorWithFormat ("Process isn't stopped: %s", StateAsCString(state)); 345 } 346 result.SetDidChangeProcessState (true); 347 result.SetStatus (eReturnStatusSuccessFinishResult); 348 } 349 else 350 { 351 result.SetStatus (eReturnStatusSuccessContinuingNoResult); 352 } 353 } 354 else 355 { 356 result.AppendErrorWithFormat ("Process resume at entry point failed: %s", error.AsCString()); 357 result.SetStatus (eReturnStatusFailed); 358 } 359 } 360 else 361 { 362 result.AppendErrorWithFormat ("Initial process state wasn't stopped: %s", StateAsCString(state)); 363 result.SetStatus (eReturnStatusFailed); 364 } 365 } 366 } 367 else 368 { 369 result.AppendErrorWithFormat ("process launch failed: %s", error.AsCString()); 370 result.SetStatus (eReturnStatusFailed); 371 } 372 373 return result.Succeeded(); 374 } 375 376 virtual const char *GetRepeatCommand (Args ¤t_command_args, uint32_t index) 377 { 378 // No repeat for "process launch"... 379 return ""; 380 } 381 382 protected: 383 384 CommandOptions m_options; 385 }; 386 387 388 #define SET1 LLDB_OPT_SET_1 389 #define SET2 LLDB_OPT_SET_2 390 #define SET3 LLDB_OPT_SET_3 391 392 OptionDefinition 393 CommandObjectProcessLaunch::CommandOptions::g_option_table[] = 394 { 395 { 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."}, 396 { SET1 , false, "stdin", 'i', required_argument, NULL, 0, eArgTypePath, "Redirect stdin for the process to <path>."}, 397 { SET1 , false, "stdout", 'o', required_argument, NULL, 0, eArgTypePath, "Redirect stdout for the process to <path>."}, 398 { SET1 , false, "stderr", 'e', required_argument, NULL, 0, eArgTypePath, "Redirect stderr for the process to <path>."}, 399 { SET1 | SET2 | SET3, false, "plugin", 'p', required_argument, NULL, 0, eArgTypePlugin, "Name of the process plugin you want to use."}, 400 { 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."}, 401 { SET3, false, "no-stdio", 'n', no_argument, NULL, 0, eArgTypeNone, "Do not set up for terminal I/O to go to running process."}, 402 { SET1 | SET2 | SET3, false, "working-dir", 'w', required_argument, NULL, 0, eArgTypePath, "Set the current working directory to <path> when running the inferior."}, 403 { 0, false, NULL, 0, 0, NULL, 0, eArgTypeNone, NULL } 404 }; 405 406 #undef SET1 407 #undef SET2 408 #undef SET3 409 410 //------------------------------------------------------------------------- 411 // CommandObjectProcessAttach 412 //------------------------------------------------------------------------- 413 #pragma mark CommandObjectProcessAttach 414 class CommandObjectProcessAttach : public CommandObject 415 { 416 public: 417 418 class CommandOptions : public Options 419 { 420 public: 421 422 CommandOptions (CommandInterpreter &interpreter) : 423 Options(interpreter) 424 { 425 // Keep default values of all options in one place: OptionParsingStarting () 426 OptionParsingStarting (); 427 } 428 429 ~CommandOptions () 430 { 431 } 432 433 Error 434 SetOptionValue (uint32_t option_idx, const char *option_arg) 435 { 436 Error error; 437 char short_option = (char) m_getopt_table[option_idx].val; 438 bool success = false; 439 switch (short_option) 440 { 441 case 'p': 442 pid = Args::StringToUInt32 (option_arg, LLDB_INVALID_PROCESS_ID, 0, &success); 443 if (!success || pid == LLDB_INVALID_PROCESS_ID) 444 { 445 error.SetErrorStringWithFormat("Invalid process ID '%s'.\n", option_arg); 446 } 447 break; 448 449 case 'P': 450 plugin_name = option_arg; 451 break; 452 453 case 'n': 454 name.assign(option_arg); 455 break; 456 457 case 'w': 458 waitfor = true; 459 break; 460 461 default: 462 error.SetErrorStringWithFormat("Invalid short option character '%c'.\n", short_option); 463 break; 464 } 465 return error; 466 } 467 468 void 469 OptionParsingStarting () 470 { 471 pid = LLDB_INVALID_PROCESS_ID; 472 name.clear(); 473 waitfor = false; 474 } 475 476 const OptionDefinition* 477 GetDefinitions () 478 { 479 return g_option_table; 480 } 481 482 virtual bool 483 HandleOptionArgumentCompletion (Args &input, 484 int cursor_index, 485 int char_pos, 486 OptionElementVector &opt_element_vector, 487 int opt_element_index, 488 int match_start_point, 489 int max_return_elements, 490 bool &word_complete, 491 StringList &matches) 492 { 493 int opt_arg_pos = opt_element_vector[opt_element_index].opt_arg_pos; 494 int opt_defs_index = opt_element_vector[opt_element_index].opt_defs_index; 495 496 // We are only completing the name option for now... 497 498 const OptionDefinition *opt_defs = GetDefinitions(); 499 if (opt_defs[opt_defs_index].short_option == 'n') 500 { 501 // Are we in the name? 502 503 // Look to see if there is a -P argument provided, and if so use that plugin, otherwise 504 // use the default plugin. 505 506 const char *partial_name = NULL; 507 partial_name = input.GetArgumentAtIndex(opt_arg_pos); 508 509 PlatformSP platform_sp (m_interpreter.GetPlatform (true)); 510 if (platform_sp) 511 { 512 ProcessInstanceInfoList process_infos; 513 ProcessInstanceInfoMatch match_info; 514 if (partial_name) 515 { 516 match_info.GetProcessInfo().SetName(partial_name); 517 match_info.SetNameMatchType(eNameMatchStartsWith); 518 } 519 platform_sp->FindProcesses (match_info, process_infos); 520 const uint32_t num_matches = process_infos.GetSize(); 521 if (num_matches > 0) 522 { 523 for (uint32_t i=0; i<num_matches; ++i) 524 { 525 matches.AppendString (process_infos.GetProcessNameAtIndex(i), 526 process_infos.GetProcessNameLengthAtIndex(i)); 527 } 528 } 529 } 530 } 531 532 return false; 533 } 534 535 // Options table: Required for subclasses of Options. 536 537 static OptionDefinition g_option_table[]; 538 539 // Instance variables to hold the values for command options. 540 541 lldb::pid_t pid; 542 std::string plugin_name; 543 std::string name; 544 bool waitfor; 545 }; 546 547 CommandObjectProcessAttach (CommandInterpreter &interpreter) : 548 CommandObject (interpreter, 549 "process attach", 550 "Attach to a process.", 551 "process attach <cmd-options>"), 552 m_options (interpreter) 553 { 554 } 555 556 ~CommandObjectProcessAttach () 557 { 558 } 559 560 bool 561 Execute (Args& command, 562 CommandReturnObject &result) 563 { 564 Target *target = m_interpreter.GetDebugger().GetSelectedTarget().get(); 565 // N.B. The attach should be synchronous. It doesn't help much to get the prompt back between initiating the attach 566 // and the target actually stopping. So even if the interpreter is set to be asynchronous, we wait for the stop 567 // ourselves here. 568 569 Process *process = m_interpreter.GetExecutionContext().process; 570 StateType state = eStateInvalid; 571 if (process) 572 { 573 state = process->GetState(); 574 if (process->IsAlive() && state != eStateConnected) 575 { 576 result.AppendErrorWithFormat ("Process %u is currently being debugged, kill the process before attaching.\n", 577 process->GetID()); 578 result.SetStatus (eReturnStatusFailed); 579 return false; 580 } 581 } 582 583 if (target == NULL) 584 { 585 // If there isn't a current target create one. 586 TargetSP new_target_sp; 587 FileSpec emptyFileSpec; 588 ArchSpec emptyArchSpec; 589 Error error; 590 591 error = m_interpreter.GetDebugger().GetTargetList().CreateTarget (m_interpreter.GetDebugger(), 592 emptyFileSpec, 593 emptyArchSpec, 594 false, 595 new_target_sp); 596 target = new_target_sp.get(); 597 if (target == NULL || error.Fail()) 598 { 599 result.AppendError(error.AsCString("Error creating target")); 600 return false; 601 } 602 m_interpreter.GetDebugger().GetTargetList().SetSelectedTarget(target); 603 } 604 605 // Record the old executable module, we want to issue a warning if the process of attaching changed the 606 // current executable (like somebody said "file foo" then attached to a PID whose executable was bar.) 607 608 ModuleSP old_exec_module_sp = target->GetExecutableModule(); 609 ArchSpec old_arch_spec = target->GetArchitecture(); 610 611 if (command.GetArgumentCount()) 612 { 613 result.AppendErrorWithFormat("Invalid arguments for '%s'.\nUsage: \n", m_cmd_name.c_str(), m_cmd_syntax.c_str()); 614 result.SetStatus (eReturnStatusFailed); 615 } 616 else 617 { 618 if (state != eStateConnected) 619 { 620 const char *plugin_name = NULL; 621 622 if (!m_options.plugin_name.empty()) 623 plugin_name = m_options.plugin_name.c_str(); 624 625 process = target->CreateProcess (m_interpreter.GetDebugger().GetListener(), plugin_name).get(); 626 } 627 628 if (process) 629 { 630 Error error; 631 int attach_pid = m_options.pid; 632 633 const char *wait_name = NULL; 634 635 if (m_options.name.empty()) 636 { 637 if (old_exec_module_sp) 638 { 639 wait_name = old_exec_module_sp->GetFileSpec().GetFilename().AsCString(); 640 } 641 } 642 else 643 { 644 wait_name = m_options.name.c_str(); 645 } 646 647 // If we are waiting for a process with this name to show up, do that first. 648 if (m_options.waitfor) 649 { 650 651 if (wait_name == NULL) 652 { 653 result.AppendError("Invalid arguments: must have a file loaded or supply a process name with the waitfor option.\n"); 654 result.SetStatus (eReturnStatusFailed); 655 return false; 656 } 657 658 result.AppendMessageWithFormat("Waiting to attach to a process named \"%s\".\n", wait_name); 659 error = process->Attach (wait_name, m_options.waitfor); 660 if (error.Success()) 661 { 662 result.SetStatus (eReturnStatusSuccessContinuingNoResult); 663 } 664 else 665 { 666 result.AppendErrorWithFormat ("Waiting for a process to launch named '%s': %s\n", 667 wait_name, 668 error.AsCString()); 669 result.SetStatus (eReturnStatusFailed); 670 return false; 671 } 672 // If we're synchronous, wait for the stopped event and report that. 673 // Otherwise just return. 674 // FIXME: in the async case it will now be possible to get to the command 675 // interpreter with a state eStateAttaching. Make sure we handle that correctly. 676 StateType state = process->WaitForProcessToStop (NULL); 677 678 result.SetDidChangeProcessState (true); 679 result.AppendMessageWithFormat ("Process %i %s\n", process->GetID(), StateAsCString (state)); 680 result.SetStatus (eReturnStatusSuccessFinishNoResult); 681 } 682 else 683 { 684 // If the process was specified by name look it up, so we can warn if there are multiple 685 // processes with this pid. 686 687 if (attach_pid == LLDB_INVALID_PROCESS_ID && wait_name != NULL) 688 { 689 ProcessInstanceInfoList process_infos; 690 PlatformSP platform_sp (m_interpreter.GetPlatform (true)); 691 if (platform_sp) 692 { 693 ProcessInstanceInfoMatch match_info (wait_name, eNameMatchEquals); 694 platform_sp->FindProcesses (match_info, process_infos); 695 } 696 if (process_infos.GetSize() > 1) 697 { 698 result.AppendErrorWithFormat("More than one process named %s\n", wait_name); 699 result.SetStatus (eReturnStatusFailed); 700 return false; 701 } 702 else if (process_infos.GetSize() == 0) 703 { 704 result.AppendErrorWithFormat("Could not find a process named %s\n", wait_name); 705 result.SetStatus (eReturnStatusFailed); 706 return false; 707 } 708 else 709 { 710 attach_pid = process_infos.GetProcessIDAtIndex (0); 711 } 712 } 713 714 if (attach_pid != LLDB_INVALID_PROCESS_ID) 715 { 716 error = process->Attach (attach_pid); 717 if (error.Success()) 718 { 719 result.SetStatus (eReturnStatusSuccessContinuingNoResult); 720 } 721 else 722 { 723 result.AppendErrorWithFormat ("Attaching to process %i failed: %s.\n", 724 attach_pid, 725 error.AsCString()); 726 result.SetStatus (eReturnStatusFailed); 727 } 728 StateType state = process->WaitForProcessToStop (NULL); 729 730 result.SetDidChangeProcessState (true); 731 result.AppendMessageWithFormat ("Process %i %s\n", process->GetID(), StateAsCString (state)); 732 result.SetStatus (eReturnStatusSuccessFinishNoResult); 733 } 734 else 735 { 736 result.AppendErrorWithFormat ("No PID specified for attach\n", 737 attach_pid, 738 error.AsCString()); 739 result.SetStatus (eReturnStatusFailed); 740 741 } 742 } 743 } 744 } 745 746 if (result.Succeeded()) 747 { 748 // Okay, we're done. Last step is to warn if the executable module has changed: 749 char new_path[PATH_MAX]; 750 ModuleSP new_exec_module_sp (target->GetExecutableModule()); 751 if (!old_exec_module_sp) 752 { 753 // We might not have a module if we attached to a raw pid... 754 if (new_exec_module_sp) 755 { 756 new_exec_module_sp->GetFileSpec().GetPath(new_path, PATH_MAX); 757 result.AppendMessageWithFormat("Executable module set to \"%s\".\n", new_path); 758 } 759 } 760 else if (old_exec_module_sp->GetFileSpec() != new_exec_module_sp->GetFileSpec()) 761 { 762 char old_path[PATH_MAX]; 763 764 old_exec_module_sp->GetFileSpec().GetPath (old_path, PATH_MAX); 765 new_exec_module_sp->GetFileSpec().GetPath (new_path, PATH_MAX); 766 767 result.AppendWarningWithFormat("Executable module changed from \"%s\" to \"%s\".\n", 768 old_path, new_path); 769 } 770 771 if (!old_arch_spec.IsValid()) 772 { 773 result.AppendMessageWithFormat ("Architecture set to: %s.\n", target->GetArchitecture().GetArchitectureName()); 774 } 775 else if (old_arch_spec != target->GetArchitecture()) 776 { 777 result.AppendWarningWithFormat("Architecture changed from %s to %s.\n", 778 old_arch_spec.GetArchitectureName(), target->GetArchitecture().GetArchitectureName()); 779 } 780 } 781 return result.Succeeded(); 782 } 783 784 Options * 785 GetOptions () 786 { 787 return &m_options; 788 } 789 790 protected: 791 792 CommandOptions m_options; 793 }; 794 795 796 OptionDefinition 797 CommandObjectProcessAttach::CommandOptions::g_option_table[] = 798 { 799 { LLDB_OPT_SET_ALL, false, "plugin", 'P', required_argument, NULL, 0, eArgTypePlugin, "Name of the process plugin you want to use."}, 800 { LLDB_OPT_SET_1, false, "pid", 'p', required_argument, NULL, 0, eArgTypePid, "The process ID of an existing process to attach to."}, 801 { LLDB_OPT_SET_2, false, "name", 'n', required_argument, NULL, 0, eArgTypeProcessName, "The name of the process to attach to."}, 802 { LLDB_OPT_SET_2, false, "waitfor",'w', no_argument, NULL, 0, eArgTypeNone, "Wait for the the process with <process-name> to launch."}, 803 { 0, false, NULL, 0, 0, NULL, 0, eArgTypeNone, NULL } 804 }; 805 806 //------------------------------------------------------------------------- 807 // CommandObjectProcessContinue 808 //------------------------------------------------------------------------- 809 #pragma mark CommandObjectProcessContinue 810 811 class CommandObjectProcessContinue : public CommandObject 812 { 813 public: 814 815 CommandObjectProcessContinue (CommandInterpreter &interpreter) : 816 CommandObject (interpreter, 817 "process continue", 818 "Continue execution of all threads in the current process.", 819 "process continue", 820 eFlagProcessMustBeLaunched | eFlagProcessMustBePaused) 821 { 822 } 823 824 825 ~CommandObjectProcessContinue () 826 { 827 } 828 829 bool 830 Execute (Args& command, 831 CommandReturnObject &result) 832 { 833 Process *process = m_interpreter.GetExecutionContext().process; 834 bool synchronous_execution = m_interpreter.GetSynchronous (); 835 836 if (process == NULL) 837 { 838 result.AppendError ("no process to continue"); 839 result.SetStatus (eReturnStatusFailed); 840 return false; 841 } 842 843 StateType state = process->GetState(); 844 if (state == eStateStopped) 845 { 846 if (command.GetArgumentCount() != 0) 847 { 848 result.AppendErrorWithFormat ("The '%s' command does not take any arguments.\n", m_cmd_name.c_str()); 849 result.SetStatus (eReturnStatusFailed); 850 return false; 851 } 852 853 const uint32_t num_threads = process->GetThreadList().GetSize(); 854 855 // Set the actions that the threads should each take when resuming 856 for (uint32_t idx=0; idx<num_threads; ++idx) 857 { 858 process->GetThreadList().GetThreadAtIndex(idx)->SetResumeState (eStateRunning); 859 } 860 861 Error error(process->Resume()); 862 if (error.Success()) 863 { 864 result.AppendMessageWithFormat ("Process %i resuming\n", process->GetID()); 865 if (synchronous_execution) 866 { 867 state = process->WaitForProcessToStop (NULL); 868 869 result.SetDidChangeProcessState (true); 870 result.AppendMessageWithFormat ("Process %i %s\n", process->GetID(), StateAsCString (state)); 871 result.SetStatus (eReturnStatusSuccessFinishNoResult); 872 } 873 else 874 { 875 result.SetStatus (eReturnStatusSuccessContinuingNoResult); 876 } 877 } 878 else 879 { 880 result.AppendErrorWithFormat("Failed to resume process: %s.\n", error.AsCString()); 881 result.SetStatus (eReturnStatusFailed); 882 } 883 } 884 else 885 { 886 result.AppendErrorWithFormat ("Process cannot be continued from its current state (%s).\n", 887 StateAsCString(state)); 888 result.SetStatus (eReturnStatusFailed); 889 } 890 return result.Succeeded(); 891 } 892 }; 893 894 //------------------------------------------------------------------------- 895 // CommandObjectProcessDetach 896 //------------------------------------------------------------------------- 897 #pragma mark CommandObjectProcessDetach 898 899 class CommandObjectProcessDetach : public CommandObject 900 { 901 public: 902 903 CommandObjectProcessDetach (CommandInterpreter &interpreter) : 904 CommandObject (interpreter, 905 "process detach", 906 "Detach from the current process being debugged.", 907 "process detach", 908 eFlagProcessMustBeLaunched) 909 { 910 } 911 912 ~CommandObjectProcessDetach () 913 { 914 } 915 916 bool 917 Execute (Args& command, 918 CommandReturnObject &result) 919 { 920 Process *process = m_interpreter.GetExecutionContext().process; 921 if (process == NULL) 922 { 923 result.AppendError ("must have a valid process in order to detach"); 924 result.SetStatus (eReturnStatusFailed); 925 return false; 926 } 927 928 result.AppendMessageWithFormat ("Detaching from process %i\n", process->GetID()); 929 Error error (process->Detach()); 930 if (error.Success()) 931 { 932 result.SetStatus (eReturnStatusSuccessFinishResult); 933 } 934 else 935 { 936 result.AppendErrorWithFormat ("Detach failed: %s\n", error.AsCString()); 937 result.SetStatus (eReturnStatusFailed); 938 return false; 939 } 940 return result.Succeeded(); 941 } 942 }; 943 944 //------------------------------------------------------------------------- 945 // CommandObjectProcessConnect 946 //------------------------------------------------------------------------- 947 #pragma mark CommandObjectProcessConnect 948 949 class CommandObjectProcessConnect : public CommandObject 950 { 951 public: 952 953 class CommandOptions : public Options 954 { 955 public: 956 957 CommandOptions (CommandInterpreter &interpreter) : 958 Options(interpreter) 959 { 960 // Keep default values of all options in one place: OptionParsingStarting () 961 OptionParsingStarting (); 962 } 963 964 ~CommandOptions () 965 { 966 } 967 968 Error 969 SetOptionValue (uint32_t option_idx, const char *option_arg) 970 { 971 Error error; 972 char short_option = (char) m_getopt_table[option_idx].val; 973 974 switch (short_option) 975 { 976 case 'p': 977 plugin_name.assign (option_arg); 978 break; 979 980 default: 981 error.SetErrorStringWithFormat("Invalid short option character '%c'.\n", short_option); 982 break; 983 } 984 return error; 985 } 986 987 void 988 OptionParsingStarting () 989 { 990 plugin_name.clear(); 991 } 992 993 const OptionDefinition* 994 GetDefinitions () 995 { 996 return g_option_table; 997 } 998 999 // Options table: Required for subclasses of Options. 1000 1001 static OptionDefinition g_option_table[]; 1002 1003 // Instance variables to hold the values for command options. 1004 1005 std::string plugin_name; 1006 }; 1007 1008 CommandObjectProcessConnect (CommandInterpreter &interpreter) : 1009 CommandObject (interpreter, 1010 "process connect", 1011 "Connect to a remote debug service.", 1012 "process connect <remote-url>", 1013 0), 1014 m_options (interpreter) 1015 { 1016 } 1017 1018 ~CommandObjectProcessConnect () 1019 { 1020 } 1021 1022 1023 bool 1024 Execute (Args& command, 1025 CommandReturnObject &result) 1026 { 1027 1028 TargetSP target_sp (m_interpreter.GetDebugger().GetSelectedTarget()); 1029 Error error; 1030 Process *process = m_interpreter.GetExecutionContext().process; 1031 if (process) 1032 { 1033 if (process->IsAlive()) 1034 { 1035 result.AppendErrorWithFormat ("Process %u is currently being debugged, kill the process before connecting.\n", 1036 process->GetID()); 1037 result.SetStatus (eReturnStatusFailed); 1038 return false; 1039 } 1040 } 1041 1042 if (!target_sp) 1043 { 1044 // If there isn't a current target create one. 1045 FileSpec emptyFileSpec; 1046 ArchSpec emptyArchSpec; 1047 1048 error = m_interpreter.GetDebugger().GetTargetList().CreateTarget (m_interpreter.GetDebugger(), 1049 emptyFileSpec, 1050 emptyArchSpec, 1051 false, 1052 target_sp); 1053 if (!target_sp || error.Fail()) 1054 { 1055 result.AppendError(error.AsCString("Error creating target")); 1056 result.SetStatus (eReturnStatusFailed); 1057 return false; 1058 } 1059 m_interpreter.GetDebugger().GetTargetList().SetSelectedTarget(target_sp.get()); 1060 } 1061 1062 if (command.GetArgumentCount() == 1) 1063 { 1064 const char *plugin_name = NULL; 1065 if (!m_options.plugin_name.empty()) 1066 plugin_name = m_options.plugin_name.c_str(); 1067 1068 const char *remote_url = command.GetArgumentAtIndex(0); 1069 process = target_sp->CreateProcess (m_interpreter.GetDebugger().GetListener(), plugin_name).get(); 1070 1071 if (process) 1072 { 1073 error = process->ConnectRemote (remote_url); 1074 1075 if (error.Fail()) 1076 { 1077 result.AppendError(error.AsCString("Remote connect failed")); 1078 result.SetStatus (eReturnStatusFailed); 1079 return false; 1080 } 1081 } 1082 else 1083 { 1084 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", 1085 m_cmd_name.c_str(), 1086 m_cmd_syntax.c_str()); 1087 result.SetStatus (eReturnStatusFailed); 1088 } 1089 } 1090 else 1091 { 1092 result.AppendErrorWithFormat ("'%s' takes exactly one argument:\nUsage: \n", 1093 m_cmd_name.c_str(), 1094 m_cmd_syntax.c_str()); 1095 result.SetStatus (eReturnStatusFailed); 1096 } 1097 return result.Succeeded(); 1098 } 1099 1100 Options * 1101 GetOptions () 1102 { 1103 return &m_options; 1104 } 1105 1106 protected: 1107 1108 CommandOptions m_options; 1109 }; 1110 1111 1112 OptionDefinition 1113 CommandObjectProcessConnect::CommandOptions::g_option_table[] = 1114 { 1115 { LLDB_OPT_SET_ALL, false, "plugin", 'p', required_argument, NULL, 0, eArgTypePlugin, "Name of the process plugin you want to use."}, 1116 { 0, false, NULL, 0 , 0, NULL, 0, eArgTypeNone, NULL } 1117 }; 1118 1119 //------------------------------------------------------------------------- 1120 // CommandObjectProcessLoad 1121 //------------------------------------------------------------------------- 1122 #pragma mark CommandObjectProcessLoad 1123 1124 class CommandObjectProcessLoad : public CommandObject 1125 { 1126 public: 1127 1128 CommandObjectProcessLoad (CommandInterpreter &interpreter) : 1129 CommandObject (interpreter, 1130 "process load", 1131 "Load a shared library into the current process.", 1132 "process load <filename> [<filename> ...]", 1133 eFlagProcessMustBeLaunched | eFlagProcessMustBePaused) 1134 { 1135 } 1136 1137 ~CommandObjectProcessLoad () 1138 { 1139 } 1140 1141 bool 1142 Execute (Args& command, 1143 CommandReturnObject &result) 1144 { 1145 Process *process = m_interpreter.GetExecutionContext().process; 1146 if (process == NULL) 1147 { 1148 result.AppendError ("must have a valid process in order to load a shared library"); 1149 result.SetStatus (eReturnStatusFailed); 1150 return false; 1151 } 1152 1153 const uint32_t argc = command.GetArgumentCount(); 1154 1155 for (uint32_t i=0; i<argc; ++i) 1156 { 1157 Error error; 1158 const char *image_path = command.GetArgumentAtIndex(i); 1159 FileSpec image_spec (image_path, false); 1160 process->GetTarget().GetPlatform()->ResolveRemotePath(image_spec, image_spec); 1161 uint32_t image_token = process->LoadImage(image_spec, error); 1162 if (image_token != LLDB_INVALID_IMAGE_TOKEN) 1163 { 1164 result.AppendMessageWithFormat ("Loading \"%s\"...ok\nImage %u loaded.\n", image_path, image_token); 1165 result.SetStatus (eReturnStatusSuccessFinishResult); 1166 } 1167 else 1168 { 1169 result.AppendErrorWithFormat ("failed to load '%s': %s", image_path, error.AsCString()); 1170 result.SetStatus (eReturnStatusFailed); 1171 } 1172 } 1173 return result.Succeeded(); 1174 } 1175 }; 1176 1177 1178 //------------------------------------------------------------------------- 1179 // CommandObjectProcessUnload 1180 //------------------------------------------------------------------------- 1181 #pragma mark CommandObjectProcessUnload 1182 1183 class CommandObjectProcessUnload : public CommandObject 1184 { 1185 public: 1186 1187 CommandObjectProcessUnload (CommandInterpreter &interpreter) : 1188 CommandObject (interpreter, 1189 "process unload", 1190 "Unload a shared library from the current process using the index returned by a previous call to \"process load\".", 1191 "process unload <index>", 1192 eFlagProcessMustBeLaunched | eFlagProcessMustBePaused) 1193 { 1194 } 1195 1196 ~CommandObjectProcessUnload () 1197 { 1198 } 1199 1200 bool 1201 Execute (Args& command, 1202 CommandReturnObject &result) 1203 { 1204 Process *process = m_interpreter.GetExecutionContext().process; 1205 if (process == NULL) 1206 { 1207 result.AppendError ("must have a valid process in order to load a shared library"); 1208 result.SetStatus (eReturnStatusFailed); 1209 return false; 1210 } 1211 1212 const uint32_t argc = command.GetArgumentCount(); 1213 1214 for (uint32_t i=0; i<argc; ++i) 1215 { 1216 const char *image_token_cstr = command.GetArgumentAtIndex(i); 1217 uint32_t image_token = Args::StringToUInt32(image_token_cstr, LLDB_INVALID_IMAGE_TOKEN, 0); 1218 if (image_token == LLDB_INVALID_IMAGE_TOKEN) 1219 { 1220 result.AppendErrorWithFormat ("invalid image index argument '%s'", image_token_cstr); 1221 result.SetStatus (eReturnStatusFailed); 1222 break; 1223 } 1224 else 1225 { 1226 Error error (process->UnloadImage(image_token)); 1227 if (error.Success()) 1228 { 1229 result.AppendMessageWithFormat ("Unloading shared library with index %u...ok\n", image_token); 1230 result.SetStatus (eReturnStatusSuccessFinishResult); 1231 } 1232 else 1233 { 1234 result.AppendErrorWithFormat ("failed to unload image: %s", error.AsCString()); 1235 result.SetStatus (eReturnStatusFailed); 1236 break; 1237 } 1238 } 1239 } 1240 return result.Succeeded(); 1241 } 1242 }; 1243 1244 //------------------------------------------------------------------------- 1245 // CommandObjectProcessSignal 1246 //------------------------------------------------------------------------- 1247 #pragma mark CommandObjectProcessSignal 1248 1249 class CommandObjectProcessSignal : public CommandObject 1250 { 1251 public: 1252 1253 CommandObjectProcessSignal (CommandInterpreter &interpreter) : 1254 CommandObject (interpreter, 1255 "process signal", 1256 "Send a UNIX signal to the current process being debugged.", 1257 NULL) 1258 { 1259 CommandArgumentEntry arg; 1260 CommandArgumentData signal_arg; 1261 1262 // Define the first (and only) variant of this arg. 1263 signal_arg.arg_type = eArgTypeUnixSignal; 1264 signal_arg.arg_repetition = eArgRepeatPlain; 1265 1266 // There is only one variant this argument could be; put it into the argument entry. 1267 arg.push_back (signal_arg); 1268 1269 // Push the data for the first argument into the m_arguments vector. 1270 m_arguments.push_back (arg); 1271 } 1272 1273 ~CommandObjectProcessSignal () 1274 { 1275 } 1276 1277 bool 1278 Execute (Args& command, 1279 CommandReturnObject &result) 1280 { 1281 Process *process = m_interpreter.GetExecutionContext().process; 1282 if (process == NULL) 1283 { 1284 result.AppendError ("no process to signal"); 1285 result.SetStatus (eReturnStatusFailed); 1286 return false; 1287 } 1288 1289 if (command.GetArgumentCount() == 1) 1290 { 1291 int signo = LLDB_INVALID_SIGNAL_NUMBER; 1292 1293 const char *signal_name = command.GetArgumentAtIndex(0); 1294 if (::isxdigit (signal_name[0])) 1295 signo = Args::StringToSInt32(signal_name, LLDB_INVALID_SIGNAL_NUMBER, 0); 1296 else 1297 signo = process->GetUnixSignals().GetSignalNumberFromName (signal_name); 1298 1299 if (signo == LLDB_INVALID_SIGNAL_NUMBER) 1300 { 1301 result.AppendErrorWithFormat ("Invalid signal argument '%s'.\n", command.GetArgumentAtIndex(0)); 1302 result.SetStatus (eReturnStatusFailed); 1303 } 1304 else 1305 { 1306 Error error (process->Signal (signo)); 1307 if (error.Success()) 1308 { 1309 result.SetStatus (eReturnStatusSuccessFinishResult); 1310 } 1311 else 1312 { 1313 result.AppendErrorWithFormat ("Failed to send signal %i: %s\n", signo, error.AsCString()); 1314 result.SetStatus (eReturnStatusFailed); 1315 } 1316 } 1317 } 1318 else 1319 { 1320 result.AppendErrorWithFormat("'%s' takes exactly one signal number argument:\nUsage: \n", m_cmd_name.c_str(), 1321 m_cmd_syntax.c_str()); 1322 result.SetStatus (eReturnStatusFailed); 1323 } 1324 return result.Succeeded(); 1325 } 1326 }; 1327 1328 1329 //------------------------------------------------------------------------- 1330 // CommandObjectProcessInterrupt 1331 //------------------------------------------------------------------------- 1332 #pragma mark CommandObjectProcessInterrupt 1333 1334 class CommandObjectProcessInterrupt : public CommandObject 1335 { 1336 public: 1337 1338 1339 CommandObjectProcessInterrupt (CommandInterpreter &interpreter) : 1340 CommandObject (interpreter, 1341 "process interrupt", 1342 "Interrupt the current process being debugged.", 1343 "process interrupt", 1344 eFlagProcessMustBeLaunched) 1345 { 1346 } 1347 1348 ~CommandObjectProcessInterrupt () 1349 { 1350 } 1351 1352 bool 1353 Execute (Args& command, 1354 CommandReturnObject &result) 1355 { 1356 Process *process = m_interpreter.GetExecutionContext().process; 1357 if (process == NULL) 1358 { 1359 result.AppendError ("no process to halt"); 1360 result.SetStatus (eReturnStatusFailed); 1361 return false; 1362 } 1363 1364 if (command.GetArgumentCount() == 0) 1365 { 1366 Error error(process->Halt ()); 1367 if (error.Success()) 1368 { 1369 result.SetStatus (eReturnStatusSuccessFinishResult); 1370 1371 // Maybe we should add a "SuspendThreadPlans so we 1372 // can halt, and keep in place all the current thread plans. 1373 process->GetThreadList().DiscardThreadPlans(); 1374 } 1375 else 1376 { 1377 result.AppendErrorWithFormat ("Failed to halt process: %s\n", error.AsCString()); 1378 result.SetStatus (eReturnStatusFailed); 1379 } 1380 } 1381 else 1382 { 1383 result.AppendErrorWithFormat("'%s' takes no arguments:\nUsage: \n", 1384 m_cmd_name.c_str(), 1385 m_cmd_syntax.c_str()); 1386 result.SetStatus (eReturnStatusFailed); 1387 } 1388 return result.Succeeded(); 1389 } 1390 }; 1391 1392 //------------------------------------------------------------------------- 1393 // CommandObjectProcessKill 1394 //------------------------------------------------------------------------- 1395 #pragma mark CommandObjectProcessKill 1396 1397 class CommandObjectProcessKill : public CommandObject 1398 { 1399 public: 1400 1401 CommandObjectProcessKill (CommandInterpreter &interpreter) : 1402 CommandObject (interpreter, 1403 "process kill", 1404 "Terminate the current process being debugged.", 1405 "process kill", 1406 eFlagProcessMustBeLaunched) 1407 { 1408 } 1409 1410 ~CommandObjectProcessKill () 1411 { 1412 } 1413 1414 bool 1415 Execute (Args& command, 1416 CommandReturnObject &result) 1417 { 1418 Process *process = m_interpreter.GetExecutionContext().process; 1419 if (process == NULL) 1420 { 1421 result.AppendError ("no process to kill"); 1422 result.SetStatus (eReturnStatusFailed); 1423 return false; 1424 } 1425 1426 if (command.GetArgumentCount() == 0) 1427 { 1428 Error error (process->Destroy()); 1429 if (error.Success()) 1430 { 1431 result.SetStatus (eReturnStatusSuccessFinishResult); 1432 } 1433 else 1434 { 1435 result.AppendErrorWithFormat ("Failed to kill process: %s\n", error.AsCString()); 1436 result.SetStatus (eReturnStatusFailed); 1437 } 1438 } 1439 else 1440 { 1441 result.AppendErrorWithFormat("'%s' takes no arguments:\nUsage: \n", 1442 m_cmd_name.c_str(), 1443 m_cmd_syntax.c_str()); 1444 result.SetStatus (eReturnStatusFailed); 1445 } 1446 return result.Succeeded(); 1447 } 1448 }; 1449 1450 //------------------------------------------------------------------------- 1451 // CommandObjectProcessStatus 1452 //------------------------------------------------------------------------- 1453 #pragma mark CommandObjectProcessStatus 1454 1455 class CommandObjectProcessStatus : public CommandObject 1456 { 1457 public: 1458 CommandObjectProcessStatus (CommandInterpreter &interpreter) : 1459 CommandObject (interpreter, 1460 "process status", 1461 "Show the current status and location of executing process.", 1462 "process status", 1463 0) 1464 { 1465 } 1466 1467 ~CommandObjectProcessStatus() 1468 { 1469 } 1470 1471 1472 bool 1473 Execute 1474 ( 1475 Args& command, 1476 CommandReturnObject &result 1477 ) 1478 { 1479 Stream &strm = result.GetOutputStream(); 1480 result.SetStatus (eReturnStatusSuccessFinishNoResult); 1481 ExecutionContext exe_ctx(m_interpreter.GetExecutionContext()); 1482 if (exe_ctx.process) 1483 { 1484 const bool only_threads_with_stop_reason = true; 1485 const uint32_t start_frame = 0; 1486 const uint32_t num_frames = 1; 1487 const uint32_t num_frames_with_source = 1; 1488 exe_ctx.process->GetStatus(strm); 1489 exe_ctx.process->GetThreadStatus (strm, 1490 only_threads_with_stop_reason, 1491 start_frame, 1492 num_frames, 1493 num_frames_with_source); 1494 1495 } 1496 else 1497 { 1498 result.AppendError ("No process."); 1499 result.SetStatus (eReturnStatusFailed); 1500 } 1501 return result.Succeeded(); 1502 } 1503 }; 1504 1505 //------------------------------------------------------------------------- 1506 // CommandObjectProcessHandle 1507 //------------------------------------------------------------------------- 1508 #pragma mark CommandObjectProcessHandle 1509 1510 class CommandObjectProcessHandle : public CommandObject 1511 { 1512 public: 1513 1514 class CommandOptions : public Options 1515 { 1516 public: 1517 1518 CommandOptions (CommandInterpreter &interpreter) : 1519 Options (interpreter) 1520 { 1521 OptionParsingStarting (); 1522 } 1523 1524 ~CommandOptions () 1525 { 1526 } 1527 1528 Error 1529 SetOptionValue (uint32_t option_idx, const char *option_arg) 1530 { 1531 Error error; 1532 char short_option = (char) m_getopt_table[option_idx].val; 1533 1534 switch (short_option) 1535 { 1536 case 's': 1537 stop = option_arg; 1538 break; 1539 case 'n': 1540 notify = option_arg; 1541 break; 1542 case 'p': 1543 pass = option_arg; 1544 break; 1545 default: 1546 error.SetErrorStringWithFormat("Invalid short option character '%c'.\n", short_option); 1547 break; 1548 } 1549 return error; 1550 } 1551 1552 void 1553 OptionParsingStarting () 1554 { 1555 stop.clear(); 1556 notify.clear(); 1557 pass.clear(); 1558 } 1559 1560 const OptionDefinition* 1561 GetDefinitions () 1562 { 1563 return g_option_table; 1564 } 1565 1566 // Options table: Required for subclasses of Options. 1567 1568 static OptionDefinition g_option_table[]; 1569 1570 // Instance variables to hold the values for command options. 1571 1572 std::string stop; 1573 std::string notify; 1574 std::string pass; 1575 }; 1576 1577 1578 CommandObjectProcessHandle (CommandInterpreter &interpreter) : 1579 CommandObject (interpreter, 1580 "process handle", 1581 "Show or update what the process and debugger should do with various signals received from the OS.", 1582 NULL), 1583 m_options (interpreter) 1584 { 1585 SetHelpLong ("If no signals are specified, update them all. If no update option is specified, list the current values.\n"); 1586 CommandArgumentEntry arg; 1587 CommandArgumentData signal_arg; 1588 1589 signal_arg.arg_type = eArgTypeUnixSignal; 1590 signal_arg.arg_repetition = eArgRepeatStar; 1591 1592 arg.push_back (signal_arg); 1593 1594 m_arguments.push_back (arg); 1595 } 1596 1597 ~CommandObjectProcessHandle () 1598 { 1599 } 1600 1601 Options * 1602 GetOptions () 1603 { 1604 return &m_options; 1605 } 1606 1607 bool 1608 VerifyCommandOptionValue (const std::string &option, int &real_value) 1609 { 1610 bool okay = true; 1611 1612 bool success = false; 1613 bool tmp_value = Args::StringToBoolean (option.c_str(), false, &success); 1614 1615 if (success && tmp_value) 1616 real_value = 1; 1617 else if (success && !tmp_value) 1618 real_value = 0; 1619 else 1620 { 1621 // If the value isn't 'true' or 'false', it had better be 0 or 1. 1622 real_value = Args::StringToUInt32 (option.c_str(), 3); 1623 if (real_value != 0 && real_value != 1) 1624 okay = false; 1625 } 1626 1627 return okay; 1628 } 1629 1630 void 1631 PrintSignalHeader (Stream &str) 1632 { 1633 str.Printf ("NAME PASS STOP NOTIFY\n"); 1634 str.Printf ("========== ===== ===== ======\n"); 1635 } 1636 1637 void 1638 PrintSignal (Stream &str, int32_t signo, const char *sig_name, UnixSignals &signals) 1639 { 1640 bool stop; 1641 bool suppress; 1642 bool notify; 1643 1644 str.Printf ("%-10s ", sig_name); 1645 if (signals.GetSignalInfo (signo, suppress, stop, notify)) 1646 { 1647 bool pass = !suppress; 1648 str.Printf ("%s %s %s", 1649 (pass ? "true " : "false"), 1650 (stop ? "true " : "false"), 1651 (notify ? "true " : "false")); 1652 } 1653 str.Printf ("\n"); 1654 } 1655 1656 void 1657 PrintSignalInformation (Stream &str, Args &signal_args, int num_valid_signals, UnixSignals &signals) 1658 { 1659 PrintSignalHeader (str); 1660 1661 if (num_valid_signals > 0) 1662 { 1663 size_t num_args = signal_args.GetArgumentCount(); 1664 for (size_t i = 0; i < num_args; ++i) 1665 { 1666 int32_t signo = signals.GetSignalNumberFromName (signal_args.GetArgumentAtIndex (i)); 1667 if (signo != LLDB_INVALID_SIGNAL_NUMBER) 1668 PrintSignal (str, signo, signal_args.GetArgumentAtIndex (i), signals); 1669 } 1670 } 1671 else // Print info for ALL signals 1672 { 1673 int32_t signo = signals.GetFirstSignalNumber(); 1674 while (signo != LLDB_INVALID_SIGNAL_NUMBER) 1675 { 1676 PrintSignal (str, signo, signals.GetSignalAsCString (signo), signals); 1677 signo = signals.GetNextSignalNumber (signo); 1678 } 1679 } 1680 } 1681 1682 bool 1683 Execute (Args &signal_args, CommandReturnObject &result) 1684 { 1685 TargetSP target_sp = m_interpreter.GetDebugger().GetSelectedTarget(); 1686 1687 if (!target_sp) 1688 { 1689 result.AppendError ("No current target;" 1690 " cannot handle signals until you have a valid target and process.\n"); 1691 result.SetStatus (eReturnStatusFailed); 1692 return false; 1693 } 1694 1695 ProcessSP process_sp = target_sp->GetProcessSP(); 1696 1697 if (!process_sp) 1698 { 1699 result.AppendError ("No current process; cannot handle signals until you have a valid process.\n"); 1700 result.SetStatus (eReturnStatusFailed); 1701 return false; 1702 } 1703 1704 int stop_action = -1; // -1 means leave the current setting alone 1705 int pass_action = -1; // -1 means leave the current setting alone 1706 int notify_action = -1; // -1 means leave the current setting alone 1707 1708 if (! m_options.stop.empty() 1709 && ! VerifyCommandOptionValue (m_options.stop, stop_action)) 1710 { 1711 result.AppendError ("Invalid argument for command option --stop; must be true or false.\n"); 1712 result.SetStatus (eReturnStatusFailed); 1713 return false; 1714 } 1715 1716 if (! m_options.notify.empty() 1717 && ! VerifyCommandOptionValue (m_options.notify, notify_action)) 1718 { 1719 result.AppendError ("Invalid argument for command option --notify; must be true or false.\n"); 1720 result.SetStatus (eReturnStatusFailed); 1721 return false; 1722 } 1723 1724 if (! m_options.pass.empty() 1725 && ! VerifyCommandOptionValue (m_options.pass, pass_action)) 1726 { 1727 result.AppendError ("Invalid argument for command option --pass; must be true or false.\n"); 1728 result.SetStatus (eReturnStatusFailed); 1729 return false; 1730 } 1731 1732 size_t num_args = signal_args.GetArgumentCount(); 1733 UnixSignals &signals = process_sp->GetUnixSignals(); 1734 int num_signals_set = 0; 1735 1736 if (num_args > 0) 1737 { 1738 for (size_t i = 0; i < num_args; ++i) 1739 { 1740 int32_t signo = signals.GetSignalNumberFromName (signal_args.GetArgumentAtIndex (i)); 1741 if (signo != LLDB_INVALID_SIGNAL_NUMBER) 1742 { 1743 // Casting the actions as bools here should be okay, because VerifyCommandOptionValue guarantees 1744 // the value is either 0 or 1. 1745 if (stop_action != -1) 1746 signals.SetShouldStop (signo, (bool) stop_action); 1747 if (pass_action != -1) 1748 { 1749 bool suppress = ! ((bool) pass_action); 1750 signals.SetShouldSuppress (signo, suppress); 1751 } 1752 if (notify_action != -1) 1753 signals.SetShouldNotify (signo, (bool) notify_action); 1754 ++num_signals_set; 1755 } 1756 else 1757 { 1758 result.AppendErrorWithFormat ("Invalid signal name '%s'\n", signal_args.GetArgumentAtIndex (i)); 1759 } 1760 } 1761 } 1762 else 1763 { 1764 // No signal specified, if any command options were specified, update ALL signals. 1765 if ((notify_action != -1) || (stop_action != -1) || (pass_action != -1)) 1766 { 1767 if (m_interpreter.Confirm ("Do you really want to update all the signals?", false)) 1768 { 1769 int32_t signo = signals.GetFirstSignalNumber(); 1770 while (signo != LLDB_INVALID_SIGNAL_NUMBER) 1771 { 1772 if (notify_action != -1) 1773 signals.SetShouldNotify (signo, (bool) notify_action); 1774 if (stop_action != -1) 1775 signals.SetShouldStop (signo, (bool) stop_action); 1776 if (pass_action != -1) 1777 { 1778 bool suppress = ! ((bool) pass_action); 1779 signals.SetShouldSuppress (signo, suppress); 1780 } 1781 signo = signals.GetNextSignalNumber (signo); 1782 } 1783 } 1784 } 1785 } 1786 1787 PrintSignalInformation (result.GetOutputStream(), signal_args, num_signals_set, signals); 1788 1789 if (num_signals_set > 0) 1790 result.SetStatus (eReturnStatusSuccessFinishNoResult); 1791 else 1792 result.SetStatus (eReturnStatusFailed); 1793 1794 return result.Succeeded(); 1795 } 1796 1797 protected: 1798 1799 CommandOptions m_options; 1800 }; 1801 1802 OptionDefinition 1803 CommandObjectProcessHandle::CommandOptions::g_option_table[] = 1804 { 1805 { 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." }, 1806 { 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." }, 1807 { LLDB_OPT_SET_1, false, "pass", 'p', required_argument, NULL, 0, eArgTypeBoolean, "Whether or not the signal should be passed to the process." }, 1808 { 0, false, NULL, 0, 0, NULL, 0, eArgTypeNone, NULL } 1809 }; 1810 1811 //------------------------------------------------------------------------- 1812 // CommandObjectMultiwordProcess 1813 //------------------------------------------------------------------------- 1814 1815 CommandObjectMultiwordProcess::CommandObjectMultiwordProcess (CommandInterpreter &interpreter) : 1816 CommandObjectMultiword (interpreter, 1817 "process", 1818 "A set of commands for operating on a process.", 1819 "process <subcommand> [<subcommand-options>]") 1820 { 1821 LoadSubCommand ("attach", CommandObjectSP (new CommandObjectProcessAttach (interpreter))); 1822 LoadSubCommand ("launch", CommandObjectSP (new CommandObjectProcessLaunch (interpreter))); 1823 LoadSubCommand ("continue", CommandObjectSP (new CommandObjectProcessContinue (interpreter))); 1824 LoadSubCommand ("connect", CommandObjectSP (new CommandObjectProcessConnect (interpreter))); 1825 LoadSubCommand ("detach", CommandObjectSP (new CommandObjectProcessDetach (interpreter))); 1826 LoadSubCommand ("load", CommandObjectSP (new CommandObjectProcessLoad (interpreter))); 1827 LoadSubCommand ("unload", CommandObjectSP (new CommandObjectProcessUnload (interpreter))); 1828 LoadSubCommand ("signal", CommandObjectSP (new CommandObjectProcessSignal (interpreter))); 1829 LoadSubCommand ("handle", CommandObjectSP (new CommandObjectProcessHandle (interpreter))); 1830 LoadSubCommand ("status", CommandObjectSP (new CommandObjectProcessStatus (interpreter))); 1831 LoadSubCommand ("interrupt", CommandObjectSP (new CommandObjectProcessInterrupt (interpreter))); 1832 LoadSubCommand ("kill", CommandObjectSP (new CommandObjectProcessKill (interpreter))); 1833 } 1834 1835 CommandObjectMultiwordProcess::~CommandObjectMultiwordProcess () 1836 { 1837 } 1838 1839