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