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