1 //===-- CommandObjectProcess.cpp --------------------------------*- C++ -*-===// 2 // 3 // The LLVM Compiler Infrastructure 4 // 5 // This file is distributed under the University of Illinois Open Source 6 // License. See LICENSE.TXT for details. 7 // 8 //===----------------------------------------------------------------------===// 9 10 #include "CommandObjectProcess.h" 11 12 // C Includes 13 // C++ Includes 14 // Other libraries and framework includes 15 // Project includes 16 #include "lldb/Interpreter/Args.h" 17 #include "lldb/Interpreter/Options.h" 18 #include "lldb/Core/State.h" 19 #include "lldb/Host/Host.h" 20 #include "lldb/Interpreter/CommandInterpreter.h" 21 #include "lldb/Interpreter/CommandReturnObject.h" 22 #include "lldb/Target/Platform.h" 23 #include "lldb/Target/Process.h" 24 #include "lldb/Target/Target.h" 25 #include "lldb/Target/Thread.h" 26 27 using namespace lldb; 28 using namespace lldb_private; 29 30 //------------------------------------------------------------------------- 31 // CommandObjectProcessLaunch 32 //------------------------------------------------------------------------- 33 #pragma mark CommandObjectProjectLaunch 34 class CommandObjectProcessLaunch : public CommandObject 35 { 36 public: 37 38 // class CommandOptions : public Options 39 // { 40 // public: 41 // 42 // CommandOptions (CommandInterpreter &interpreter) : 43 // Options(interpreter) 44 // { 45 // // Keep default values of all options in one place: OptionParsingStarting () 46 // OptionParsingStarting (); 47 // } 48 // 49 // ~CommandOptions () 50 // { 51 // } 52 // 53 // Error 54 // SetOptionValue (uint32_t option_idx, const char *option_arg) 55 // { 56 // Error error; 57 // char short_option = (char) m_getopt_table[option_idx].val; 58 // 59 // switch (short_option) 60 // { 61 // case 's': stop_at_entry = true; break; 62 // case 'e': stderr_path.assign (option_arg); break; 63 // case 'i': stdin_path.assign (option_arg); break; 64 // case 'o': stdout_path.assign (option_arg); break; 65 // case 'p': plugin_name.assign (option_arg); break; 66 // case 'n': no_stdio = true; break; 67 // case 'w': working_dir.assign (option_arg); break; 68 // case 't': 69 // if (option_arg && option_arg[0]) 70 // tty_name.assign (option_arg); 71 // in_new_tty = true; 72 // break; 73 // default: 74 // error.SetErrorStringWithFormat("invalid short option character '%c'", short_option); 75 // break; 76 // 77 // } 78 // return error; 79 // } 80 // 81 // void 82 // OptionParsingStarting () 83 // { 84 // stop_at_entry = false; 85 // in_new_tty = false; 86 // tty_name.clear(); 87 // stdin_path.clear(); 88 // stdout_path.clear(); 89 // stderr_path.clear(); 90 // plugin_name.clear(); 91 // working_dir.clear(); 92 // no_stdio = false; 93 // } 94 // 95 // const OptionDefinition* 96 // GetDefinitions () 97 // { 98 // return g_option_table; 99 // } 100 // 101 // // Options table: Required for subclasses of Options. 102 // 103 // static OptionDefinition g_option_table[]; 104 // 105 // // Instance variables to hold the values for command options. 106 // 107 // bool stop_at_entry; 108 // bool in_new_tty; 109 // bool no_stdio; 110 // std::string tty_name; 111 // std::string stderr_path; 112 // std::string stdin_path; 113 // std::string stdout_path; 114 // std::string plugin_name; 115 // std::string working_dir; 116 // 117 // }; 118 119 CommandObjectProcessLaunch (CommandInterpreter &interpreter) : 120 CommandObject (interpreter, 121 "process launch", 122 "Launch the executable in the debugger.", 123 NULL), 124 m_options (interpreter) 125 { 126 CommandArgumentEntry arg; 127 CommandArgumentData run_args_arg; 128 129 // Define the first (and only) variant of this arg. 130 run_args_arg.arg_type = eArgTypeRunArgs; 131 run_args_arg.arg_repetition = eArgRepeatOptional; 132 133 // There is only one variant this argument could be; put it into the argument entry. 134 arg.push_back (run_args_arg); 135 136 // Push the data for the first argument into the m_arguments vector. 137 m_arguments.push_back (arg); 138 } 139 140 141 ~CommandObjectProcessLaunch () 142 { 143 } 144 145 Options * 146 GetOptions () 147 { 148 return &m_options; 149 } 150 151 bool 152 Execute (Args& launch_args, CommandReturnObject &result) 153 { 154 Debugger &debugger = m_interpreter.GetDebugger(); 155 Target *target = debugger.GetSelectedTarget().get(); 156 Error error; 157 158 if (target == NULL) 159 { 160 result.AppendError ("invalid target, create a debug target using the 'target create' command"); 161 result.SetStatus (eReturnStatusFailed); 162 return false; 163 } 164 // If our listener is NULL, users aren't allows to launch 165 char filename[PATH_MAX]; 166 const Module *exe_module = target->GetExecutableModulePointer(); 167 168 if (exe_module == NULL) 169 { 170 result.AppendError ("no file in target, create a debug target using the 'target create' command"); 171 result.SetStatus (eReturnStatusFailed); 172 return false; 173 } 174 175 exe_module->GetFileSpec().GetPath (filename, sizeof(filename)); 176 177 const bool add_exe_file_as_first_arg = true; 178 m_options.launch_info.SetExecutableFile(exe_module->GetFileSpec(), add_exe_file_as_first_arg); 179 180 StateType state = eStateInvalid; 181 Process *process = m_interpreter.GetExecutionContext().GetProcessPtr(); 182 if (process) 183 { 184 state = process->GetState(); 185 186 if (process->IsAlive() && state != eStateConnected) 187 { 188 char message[1024]; 189 if (process->GetState() == eStateAttaching) 190 ::strncpy (message, "There is a pending attach, abort it and launch a new process?", sizeof(message)); 191 else 192 ::strncpy (message, "There is a running process, kill it and restart?", sizeof(message)); 193 194 if (!m_interpreter.Confirm (message, true)) 195 { 196 result.SetStatus (eReturnStatusFailed); 197 return false; 198 } 199 else 200 { 201 Error destroy_error (process->Destroy()); 202 if (destroy_error.Success()) 203 { 204 result.SetStatus (eReturnStatusSuccessFinishResult); 205 } 206 else 207 { 208 result.AppendErrorWithFormat ("Failed to kill process: %s\n", destroy_error.AsCString()); 209 result.SetStatus (eReturnStatusFailed); 210 } 211 } 212 } 213 } 214 215 if (launch_args.GetArgumentCount() == 0) 216 { 217 const Args &process_args = target->GetRunArguments(); 218 if (process_args.GetArgumentCount() > 0) 219 m_options.launch_info.GetArguments().AppendArguments (process_args); 220 } 221 else 222 { 223 m_options.launch_info.GetArguments().AppendArguments (launch_args); 224 } 225 226 if (target->GetDisableASLR()) 227 m_options.launch_info.GetFlags().Set (eLaunchFlagDisableASLR); 228 229 if (target->GetDisableSTDIO()) 230 m_options.launch_info.GetFlags().Set (eLaunchFlagDisableSTDIO); 231 232 m_options.launch_info.GetFlags().Set (eLaunchFlagDebug); 233 234 Args environment; 235 target->GetEnvironmentAsArgs (environment); 236 if (environment.GetArgumentCount() > 0) 237 m_options.launch_info.GetEnvironmentEntries ().AppendArguments (environment); 238 239 // Finalize the file actions, and if none were given, default to opening 240 // up a pseudo terminal 241 const bool default_to_use_pty = true; 242 m_options.launch_info.FinalizeFileActions (target, default_to_use_pty); 243 244 if (state == eStateConnected) 245 { 246 if (m_options.launch_info.GetFlags().Test (eLaunchFlagLaunchInTTY)) 247 { 248 result.AppendWarning("can't launch in tty when launching through a remote connection"); 249 m_options.launch_info.GetFlags().Clear (eLaunchFlagLaunchInTTY); 250 } 251 } 252 else 253 { 254 if (!m_options.launch_info.GetArchitecture().IsValid()) 255 m_options.launch_info.GetArchitecture() = target->GetArchitecture(); 256 257 process = target->GetPlatform()->DebugProcess (m_options.launch_info, 258 debugger, 259 target, 260 debugger.GetListener(), 261 error).get(); 262 263 if (process == NULL) 264 { 265 result.SetError (error, "failed to launch or debug process"); 266 return false; 267 } 268 } 269 270 if (error.Success()) 271 { 272 const char *archname = exe_module->GetArchitecture().GetArchitectureName(); 273 274 result.AppendMessageWithFormat ("Process %llu launched: '%s' (%s)\n", process->GetID(), filename, archname); 275 result.SetDidChangeProcessState (true); 276 if (m_options.launch_info.GetFlags().Test(eLaunchFlagStopAtEntry) == false) 277 { 278 result.SetStatus (eReturnStatusSuccessContinuingNoResult); 279 StateType state = process->WaitForProcessToStop (NULL); 280 281 if (state == eStateStopped) 282 { 283 error = process->Resume(); 284 if (error.Success()) 285 { 286 bool synchronous_execution = m_interpreter.GetSynchronous (); 287 if (synchronous_execution) 288 { 289 state = process->WaitForProcessToStop (NULL); 290 const bool must_be_alive = true; 291 if (!StateIsStoppedState(state, must_be_alive)) 292 { 293 result.AppendErrorWithFormat ("process isn't stopped: %s", StateAsCString(state)); 294 } 295 result.SetDidChangeProcessState (true); 296 result.SetStatus (eReturnStatusSuccessFinishResult); 297 } 298 else 299 { 300 result.SetStatus (eReturnStatusSuccessContinuingNoResult); 301 } 302 } 303 else 304 { 305 result.AppendErrorWithFormat ("process resume at entry point failed: %s", error.AsCString()); 306 result.SetStatus (eReturnStatusFailed); 307 } 308 } 309 else 310 { 311 result.AppendErrorWithFormat ("initial process state wasn't stopped: %s", StateAsCString(state)); 312 result.SetStatus (eReturnStatusFailed); 313 } 314 } 315 } 316 else 317 { 318 result.AppendErrorWithFormat ("process launch failed: %s", error.AsCString()); 319 result.SetStatus (eReturnStatusFailed); 320 } 321 322 return result.Succeeded(); 323 } 324 325 virtual const char *GetRepeatCommand (Args ¤t_command_args, uint32_t index) 326 { 327 // No repeat for "process launch"... 328 return ""; 329 } 330 331 protected: 332 ProcessLaunchCommandOptions m_options; 333 }; 334 335 336 //#define SET1 LLDB_OPT_SET_1 337 //#define SET2 LLDB_OPT_SET_2 338 //#define SET3 LLDB_OPT_SET_3 339 // 340 //OptionDefinition 341 //CommandObjectProcessLaunch::CommandOptions::g_option_table[] = 342 //{ 343 //{ 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."}, 344 //{ SET1 , false, "stdin", 'i', required_argument, NULL, 0, eArgTypePath, "Redirect stdin for the process to <path>."}, 345 //{ SET1 , false, "stdout", 'o', required_argument, NULL, 0, eArgTypePath, "Redirect stdout for the process to <path>."}, 346 //{ SET1 , false, "stderr", 'e', required_argument, NULL, 0, eArgTypePath, "Redirect stderr for the process to <path>."}, 347 //{ SET1 | SET2 | SET3, false, "plugin", 'p', required_argument, NULL, 0, eArgTypePlugin, "Name of the process plugin you want to use."}, 348 //{ 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."}, 349 //{ SET3, false, "no-stdio", 'n', no_argument, NULL, 0, eArgTypeNone, "Do not set up for terminal I/O to go to running process."}, 350 //{ SET1 | SET2 | SET3, false, "working-dir", 'w', required_argument, NULL, 0, eArgTypePath, "Set the current working directory to <path> when running the inferior."}, 351 //{ 0, false, NULL, 0, 0, NULL, 0, eArgTypeNone, NULL } 352 //}; 353 // 354 //#undef SET1 355 //#undef SET2 356 //#undef SET3 357 358 //------------------------------------------------------------------------- 359 // CommandObjectProcessAttach 360 //------------------------------------------------------------------------- 361 #pragma mark CommandObjectProcessAttach 362 class CommandObjectProcessAttach : public CommandObject 363 { 364 public: 365 366 class CommandOptions : public Options 367 { 368 public: 369 370 CommandOptions (CommandInterpreter &interpreter) : 371 Options(interpreter) 372 { 373 // Keep default values of all options in one place: OptionParsingStarting () 374 OptionParsingStarting (); 375 } 376 377 ~CommandOptions () 378 { 379 } 380 381 Error 382 SetOptionValue (uint32_t option_idx, const char *option_arg) 383 { 384 Error error; 385 char short_option = (char) m_getopt_table[option_idx].val; 386 bool success = false; 387 switch (short_option) 388 { 389 case 'p': 390 { 391 lldb::pid_t pid = Args::StringToUInt32 (option_arg, LLDB_INVALID_PROCESS_ID, 0, &success); 392 if (!success || pid == LLDB_INVALID_PROCESS_ID) 393 { 394 error.SetErrorStringWithFormat("invalid process ID '%s'", option_arg); 395 } 396 else 397 { 398 attach_info.SetProcessID (pid); 399 } 400 } 401 break; 402 403 case 'P': 404 attach_info.SetProcessPluginName (option_arg); 405 break; 406 407 case 'n': 408 attach_info.GetExecutableFile().SetFile(option_arg, false); 409 break; 410 411 case 'w': 412 attach_info.SetWaitForLaunch(true); 413 break; 414 415 default: 416 error.SetErrorStringWithFormat("invalid short option character '%c'", short_option); 417 break; 418 } 419 return error; 420 } 421 422 void 423 OptionParsingStarting () 424 { 425 attach_info.Clear(); 426 } 427 428 const OptionDefinition* 429 GetDefinitions () 430 { 431 return g_option_table; 432 } 433 434 virtual bool 435 HandleOptionArgumentCompletion (Args &input, 436 int cursor_index, 437 int char_pos, 438 OptionElementVector &opt_element_vector, 439 int opt_element_index, 440 int match_start_point, 441 int max_return_elements, 442 bool &word_complete, 443 StringList &matches) 444 { 445 int opt_arg_pos = opt_element_vector[opt_element_index].opt_arg_pos; 446 int opt_defs_index = opt_element_vector[opt_element_index].opt_defs_index; 447 448 // We are only completing the name option for now... 449 450 const OptionDefinition *opt_defs = GetDefinitions(); 451 if (opt_defs[opt_defs_index].short_option == 'n') 452 { 453 // Are we in the name? 454 455 // Look to see if there is a -P argument provided, and if so use that plugin, otherwise 456 // use the default plugin. 457 458 const char *partial_name = NULL; 459 partial_name = input.GetArgumentAtIndex(opt_arg_pos); 460 461 PlatformSP platform_sp (m_interpreter.GetPlatform (true)); 462 if (platform_sp) 463 { 464 ProcessInstanceInfoList process_infos; 465 ProcessInstanceInfoMatch match_info; 466 if (partial_name) 467 { 468 match_info.GetProcessInfo().GetExecutableFile().SetFile(partial_name, false); 469 match_info.SetNameMatchType(eNameMatchStartsWith); 470 } 471 platform_sp->FindProcesses (match_info, process_infos); 472 const uint32_t num_matches = process_infos.GetSize(); 473 if (num_matches > 0) 474 { 475 for (uint32_t i=0; i<num_matches; ++i) 476 { 477 matches.AppendString (process_infos.GetProcessNameAtIndex(i), 478 process_infos.GetProcessNameLengthAtIndex(i)); 479 } 480 } 481 } 482 } 483 484 return false; 485 } 486 487 // Options table: Required for subclasses of Options. 488 489 static OptionDefinition g_option_table[]; 490 491 // Instance variables to hold the values for command options. 492 493 ProcessAttachInfo attach_info; 494 }; 495 496 CommandObjectProcessAttach (CommandInterpreter &interpreter) : 497 CommandObject (interpreter, 498 "process attach", 499 "Attach to a process.", 500 "process attach <cmd-options>"), 501 m_options (interpreter) 502 { 503 } 504 505 ~CommandObjectProcessAttach () 506 { 507 } 508 509 bool 510 Execute (Args& command, 511 CommandReturnObject &result) 512 { 513 Target *target = m_interpreter.GetDebugger().GetSelectedTarget().get(); 514 // N.B. The attach should be synchronous. It doesn't help much to get the prompt back between initiating the attach 515 // and the target actually stopping. So even if the interpreter is set to be asynchronous, we wait for the stop 516 // ourselves here. 517 518 Process *process = m_interpreter.GetExecutionContext().GetProcessPtr(); 519 StateType state = eStateInvalid; 520 if (process) 521 { 522 state = process->GetState(); 523 if (process->IsAlive() && state != eStateConnected) 524 { 525 result.AppendErrorWithFormat ("Process %llu is currently being debugged, kill the process before attaching.\n", 526 process->GetID()); 527 result.SetStatus (eReturnStatusFailed); 528 return false; 529 } 530 } 531 532 if (target == NULL) 533 { 534 // If there isn't a current target create one. 535 TargetSP new_target_sp; 536 FileSpec emptyFileSpec; 537 Error error; 538 539 error = m_interpreter.GetDebugger().GetTargetList().CreateTarget (m_interpreter.GetDebugger(), 540 emptyFileSpec, 541 NULL, 542 false, 543 NULL, // No platform options 544 new_target_sp); 545 target = new_target_sp.get(); 546 if (target == NULL || error.Fail()) 547 { 548 result.AppendError(error.AsCString("Error creating target")); 549 return false; 550 } 551 m_interpreter.GetDebugger().GetTargetList().SetSelectedTarget(target); 552 } 553 554 // Record the old executable module, we want to issue a warning if the process of attaching changed the 555 // current executable (like somebody said "file foo" then attached to a PID whose executable was bar.) 556 557 ModuleSP old_exec_module_sp = target->GetExecutableModule(); 558 ArchSpec old_arch_spec = target->GetArchitecture(); 559 560 if (command.GetArgumentCount()) 561 { 562 result.AppendErrorWithFormat("Invalid arguments for '%s'.\nUsage: %s\n", m_cmd_name.c_str(), m_cmd_syntax.c_str()); 563 result.SetStatus (eReturnStatusFailed); 564 } 565 else 566 { 567 if (state != eStateConnected) 568 { 569 const char *plugin_name = m_options.attach_info.GetProcessPluginName(); 570 process = target->CreateProcess (m_interpreter.GetDebugger().GetListener(), plugin_name).get(); 571 } 572 573 if (process) 574 { 575 Error error; 576 // If no process info was specified, then use the target executable 577 // name as the process to attach to by default 578 if (!m_options.attach_info.ProcessInfoSpecified ()) 579 { 580 if (old_exec_module_sp) 581 m_options.attach_info.GetExecutableFile().GetFilename() = old_exec_module_sp->GetFileSpec().GetFilename(); 582 583 if (!m_options.attach_info.ProcessInfoSpecified ()) 584 { 585 error.SetErrorString ("no process specified, create a target with a file, or specify the --pid or --name command option"); 586 } 587 } 588 589 if (error.Success()) 590 { 591 error = process->Attach (m_options.attach_info); 592 593 if (error.Success()) 594 { 595 result.SetStatus (eReturnStatusSuccessContinuingNoResult); 596 } 597 else 598 { 599 result.AppendErrorWithFormat ("attach failed: %s\n", error.AsCString()); 600 result.SetStatus (eReturnStatusFailed); 601 return false; 602 } 603 // If we're synchronous, wait for the stopped event and report that. 604 // Otherwise just return. 605 // FIXME: in the async case it will now be possible to get to the command 606 // interpreter with a state eStateAttaching. Make sure we handle that correctly. 607 StateType state = process->WaitForProcessToStop (NULL); 608 609 result.SetDidChangeProcessState (true); 610 result.AppendMessageWithFormat ("Process %llu %s\n", process->GetID(), StateAsCString (state)); 611 result.SetStatus (eReturnStatusSuccessFinishNoResult); 612 } 613 } 614 } 615 616 if (result.Succeeded()) 617 { 618 // Okay, we're done. Last step is to warn if the executable module has changed: 619 char new_path[PATH_MAX]; 620 ModuleSP new_exec_module_sp (target->GetExecutableModule()); 621 if (!old_exec_module_sp) 622 { 623 // We might not have a module if we attached to a raw pid... 624 if (new_exec_module_sp) 625 { 626 new_exec_module_sp->GetFileSpec().GetPath(new_path, PATH_MAX); 627 result.AppendMessageWithFormat("Executable module set to \"%s\".\n", new_path); 628 } 629 } 630 else if (old_exec_module_sp->GetFileSpec() != new_exec_module_sp->GetFileSpec()) 631 { 632 char old_path[PATH_MAX]; 633 634 old_exec_module_sp->GetFileSpec().GetPath (old_path, PATH_MAX); 635 new_exec_module_sp->GetFileSpec().GetPath (new_path, PATH_MAX); 636 637 result.AppendWarningWithFormat("Executable module changed from \"%s\" to \"%s\".\n", 638 old_path, new_path); 639 } 640 641 if (!old_arch_spec.IsValid()) 642 { 643 result.AppendMessageWithFormat ("Architecture set to: %s.\n", target->GetArchitecture().GetArchitectureName()); 644 } 645 else if (old_arch_spec != target->GetArchitecture()) 646 { 647 result.AppendWarningWithFormat("Architecture changed from %s to %s.\n", 648 old_arch_spec.GetArchitectureName(), target->GetArchitecture().GetArchitectureName()); 649 } 650 } 651 return result.Succeeded(); 652 } 653 654 Options * 655 GetOptions () 656 { 657 return &m_options; 658 } 659 660 protected: 661 662 CommandOptions m_options; 663 }; 664 665 666 OptionDefinition 667 CommandObjectProcessAttach::CommandOptions::g_option_table[] = 668 { 669 { LLDB_OPT_SET_ALL, false, "plugin", 'P', required_argument, NULL, 0, eArgTypePlugin, "Name of the process plugin you want to use."}, 670 { LLDB_OPT_SET_1, false, "pid", 'p', required_argument, NULL, 0, eArgTypePid, "The process ID of an existing process to attach to."}, 671 { LLDB_OPT_SET_2, false, "name", 'n', required_argument, NULL, 0, eArgTypeProcessName, "The name of the process to attach to."}, 672 { LLDB_OPT_SET_2, false, "waitfor",'w', no_argument, NULL, 0, eArgTypeNone, "Wait for the the process with <process-name> to launch."}, 673 { 0, false, NULL, 0, 0, NULL, 0, eArgTypeNone, NULL } 674 }; 675 676 //------------------------------------------------------------------------- 677 // CommandObjectProcessContinue 678 //------------------------------------------------------------------------- 679 #pragma mark CommandObjectProcessContinue 680 681 class CommandObjectProcessContinue : public CommandObject 682 { 683 public: 684 685 CommandObjectProcessContinue (CommandInterpreter &interpreter) : 686 CommandObject (interpreter, 687 "process continue", 688 "Continue execution of all threads in the current process.", 689 "process continue", 690 eFlagProcessMustBeLaunched | eFlagProcessMustBePaused) 691 { 692 } 693 694 695 ~CommandObjectProcessContinue () 696 { 697 } 698 699 bool 700 Execute (Args& command, 701 CommandReturnObject &result) 702 { 703 Process *process = m_interpreter.GetExecutionContext().GetProcessPtr(); 704 bool synchronous_execution = m_interpreter.GetSynchronous (); 705 706 if (process == NULL) 707 { 708 result.AppendError ("no process to continue"); 709 result.SetStatus (eReturnStatusFailed); 710 return false; 711 } 712 713 StateType state = process->GetState(); 714 if (state == eStateStopped) 715 { 716 if (command.GetArgumentCount() != 0) 717 { 718 result.AppendErrorWithFormat ("The '%s' command does not take any arguments.\n", m_cmd_name.c_str()); 719 result.SetStatus (eReturnStatusFailed); 720 return false; 721 } 722 723 const uint32_t num_threads = process->GetThreadList().GetSize(); 724 725 // Set the actions that the threads should each take when resuming 726 for (uint32_t idx=0; idx<num_threads; ++idx) 727 { 728 process->GetThreadList().GetThreadAtIndex(idx)->SetResumeState (eStateRunning); 729 } 730 731 Error error(process->Resume()); 732 if (error.Success()) 733 { 734 result.AppendMessageWithFormat ("Process %llu resuming\n", process->GetID()); 735 if (synchronous_execution) 736 { 737 state = process->WaitForProcessToStop (NULL); 738 739 result.SetDidChangeProcessState (true); 740 result.AppendMessageWithFormat ("Process %llu %s\n", process->GetID(), StateAsCString (state)); 741 result.SetStatus (eReturnStatusSuccessFinishNoResult); 742 } 743 else 744 { 745 result.SetStatus (eReturnStatusSuccessContinuingNoResult); 746 } 747 } 748 else 749 { 750 result.AppendErrorWithFormat("Failed to resume process: %s.\n", error.AsCString()); 751 result.SetStatus (eReturnStatusFailed); 752 } 753 } 754 else 755 { 756 result.AppendErrorWithFormat ("Process cannot be continued from its current state (%s).\n", 757 StateAsCString(state)); 758 result.SetStatus (eReturnStatusFailed); 759 } 760 return result.Succeeded(); 761 } 762 }; 763 764 //------------------------------------------------------------------------- 765 // CommandObjectProcessDetach 766 //------------------------------------------------------------------------- 767 #pragma mark CommandObjectProcessDetach 768 769 class CommandObjectProcessDetach : public CommandObject 770 { 771 public: 772 773 CommandObjectProcessDetach (CommandInterpreter &interpreter) : 774 CommandObject (interpreter, 775 "process detach", 776 "Detach from the current process being debugged.", 777 "process detach", 778 eFlagProcessMustBeLaunched) 779 { 780 } 781 782 ~CommandObjectProcessDetach () 783 { 784 } 785 786 bool 787 Execute (Args& command, 788 CommandReturnObject &result) 789 { 790 Process *process = m_interpreter.GetExecutionContext().GetProcessPtr(); 791 if (process == NULL) 792 { 793 result.AppendError ("must have a valid process in order to detach"); 794 result.SetStatus (eReturnStatusFailed); 795 return false; 796 } 797 798 result.AppendMessageWithFormat ("Detaching from process %llu\n", process->GetID()); 799 Error error (process->Detach()); 800 if (error.Success()) 801 { 802 result.SetStatus (eReturnStatusSuccessFinishResult); 803 } 804 else 805 { 806 result.AppendErrorWithFormat ("Detach failed: %s\n", error.AsCString()); 807 result.SetStatus (eReturnStatusFailed); 808 return false; 809 } 810 return result.Succeeded(); 811 } 812 }; 813 814 //------------------------------------------------------------------------- 815 // CommandObjectProcessConnect 816 //------------------------------------------------------------------------- 817 #pragma mark CommandObjectProcessConnect 818 819 class CommandObjectProcessConnect : public CommandObject 820 { 821 public: 822 823 class CommandOptions : public Options 824 { 825 public: 826 827 CommandOptions (CommandInterpreter &interpreter) : 828 Options(interpreter) 829 { 830 // Keep default values of all options in one place: OptionParsingStarting () 831 OptionParsingStarting (); 832 } 833 834 ~CommandOptions () 835 { 836 } 837 838 Error 839 SetOptionValue (uint32_t option_idx, const char *option_arg) 840 { 841 Error error; 842 char short_option = (char) m_getopt_table[option_idx].val; 843 844 switch (short_option) 845 { 846 case 'p': 847 plugin_name.assign (option_arg); 848 break; 849 850 default: 851 error.SetErrorStringWithFormat("invalid short option character '%c'", short_option); 852 break; 853 } 854 return error; 855 } 856 857 void 858 OptionParsingStarting () 859 { 860 plugin_name.clear(); 861 } 862 863 const OptionDefinition* 864 GetDefinitions () 865 { 866 return g_option_table; 867 } 868 869 // Options table: Required for subclasses of Options. 870 871 static OptionDefinition g_option_table[]; 872 873 // Instance variables to hold the values for command options. 874 875 std::string plugin_name; 876 }; 877 878 CommandObjectProcessConnect (CommandInterpreter &interpreter) : 879 CommandObject (interpreter, 880 "process connect", 881 "Connect to a remote debug service.", 882 "process connect <remote-url>", 883 0), 884 m_options (interpreter) 885 { 886 } 887 888 ~CommandObjectProcessConnect () 889 { 890 } 891 892 893 bool 894 Execute (Args& command, 895 CommandReturnObject &result) 896 { 897 898 TargetSP target_sp (m_interpreter.GetDebugger().GetSelectedTarget()); 899 Error error; 900 Process *process = m_interpreter.GetExecutionContext().GetProcessPtr(); 901 if (process) 902 { 903 if (process->IsAlive()) 904 { 905 result.AppendErrorWithFormat ("Process %llu is currently being debugged, kill the process before connecting.\n", 906 process->GetID()); 907 result.SetStatus (eReturnStatusFailed); 908 return false; 909 } 910 } 911 912 if (!target_sp) 913 { 914 // If there isn't a current target create one. 915 FileSpec emptyFileSpec; 916 917 error = m_interpreter.GetDebugger().GetTargetList().CreateTarget (m_interpreter.GetDebugger(), 918 emptyFileSpec, 919 NULL, 920 false, 921 NULL, // No platform options 922 target_sp); 923 if (!target_sp || error.Fail()) 924 { 925 result.AppendError(error.AsCString("Error creating target")); 926 result.SetStatus (eReturnStatusFailed); 927 return false; 928 } 929 m_interpreter.GetDebugger().GetTargetList().SetSelectedTarget(target_sp.get()); 930 } 931 932 if (command.GetArgumentCount() == 1) 933 { 934 const char *plugin_name = NULL; 935 if (!m_options.plugin_name.empty()) 936 plugin_name = m_options.plugin_name.c_str(); 937 938 const char *remote_url = command.GetArgumentAtIndex(0); 939 process = target_sp->CreateProcess (m_interpreter.GetDebugger().GetListener(), plugin_name).get(); 940 941 if (process) 942 { 943 error = process->ConnectRemote (remote_url); 944 945 if (error.Fail()) 946 { 947 result.AppendError(error.AsCString("Remote connect failed")); 948 result.SetStatus (eReturnStatusFailed); 949 return false; 950 } 951 } 952 else 953 { 954 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", 955 m_cmd_name.c_str()); 956 result.SetStatus (eReturnStatusFailed); 957 } 958 } 959 else 960 { 961 result.AppendErrorWithFormat ("'%s' takes exactly one argument:\nUsage: %s\n", 962 m_cmd_name.c_str(), 963 m_cmd_syntax.c_str()); 964 result.SetStatus (eReturnStatusFailed); 965 } 966 return result.Succeeded(); 967 } 968 969 Options * 970 GetOptions () 971 { 972 return &m_options; 973 } 974 975 protected: 976 977 CommandOptions m_options; 978 }; 979 980 981 OptionDefinition 982 CommandObjectProcessConnect::CommandOptions::g_option_table[] = 983 { 984 { LLDB_OPT_SET_ALL, false, "plugin", 'p', required_argument, NULL, 0, eArgTypePlugin, "Name of the process plugin you want to use."}, 985 { 0, false, NULL, 0 , 0, NULL, 0, eArgTypeNone, NULL } 986 }; 987 988 //------------------------------------------------------------------------- 989 // CommandObjectProcessLoad 990 //------------------------------------------------------------------------- 991 #pragma mark CommandObjectProcessLoad 992 993 class CommandObjectProcessLoad : public CommandObject 994 { 995 public: 996 997 CommandObjectProcessLoad (CommandInterpreter &interpreter) : 998 CommandObject (interpreter, 999 "process load", 1000 "Load a shared library into the current process.", 1001 "process load <filename> [<filename> ...]", 1002 eFlagProcessMustBeLaunched | eFlagProcessMustBePaused) 1003 { 1004 } 1005 1006 ~CommandObjectProcessLoad () 1007 { 1008 } 1009 1010 bool 1011 Execute (Args& command, 1012 CommandReturnObject &result) 1013 { 1014 Process *process = m_interpreter.GetExecutionContext().GetProcessPtr(); 1015 if (process == NULL) 1016 { 1017 result.AppendError ("must have a valid process in order to load a shared library"); 1018 result.SetStatus (eReturnStatusFailed); 1019 return false; 1020 } 1021 1022 const uint32_t argc = command.GetArgumentCount(); 1023 1024 for (uint32_t i=0; i<argc; ++i) 1025 { 1026 Error error; 1027 const char *image_path = command.GetArgumentAtIndex(i); 1028 FileSpec image_spec (image_path, false); 1029 process->GetTarget().GetPlatform()->ResolveRemotePath(image_spec, image_spec); 1030 uint32_t image_token = process->LoadImage(image_spec, error); 1031 if (image_token != LLDB_INVALID_IMAGE_TOKEN) 1032 { 1033 result.AppendMessageWithFormat ("Loading \"%s\"...ok\nImage %u loaded.\n", image_path, image_token); 1034 result.SetStatus (eReturnStatusSuccessFinishResult); 1035 } 1036 else 1037 { 1038 result.AppendErrorWithFormat ("failed to load '%s': %s", image_path, error.AsCString()); 1039 result.SetStatus (eReturnStatusFailed); 1040 } 1041 } 1042 return result.Succeeded(); 1043 } 1044 }; 1045 1046 1047 //------------------------------------------------------------------------- 1048 // CommandObjectProcessUnload 1049 //------------------------------------------------------------------------- 1050 #pragma mark CommandObjectProcessUnload 1051 1052 class CommandObjectProcessUnload : public CommandObject 1053 { 1054 public: 1055 1056 CommandObjectProcessUnload (CommandInterpreter &interpreter) : 1057 CommandObject (interpreter, 1058 "process unload", 1059 "Unload a shared library from the current process using the index returned by a previous call to \"process load\".", 1060 "process unload <index>", 1061 eFlagProcessMustBeLaunched | eFlagProcessMustBePaused) 1062 { 1063 } 1064 1065 ~CommandObjectProcessUnload () 1066 { 1067 } 1068 1069 bool 1070 Execute (Args& command, 1071 CommandReturnObject &result) 1072 { 1073 Process *process = m_interpreter.GetExecutionContext().GetProcessPtr(); 1074 if (process == NULL) 1075 { 1076 result.AppendError ("must have a valid process in order to load a shared library"); 1077 result.SetStatus (eReturnStatusFailed); 1078 return false; 1079 } 1080 1081 const uint32_t argc = command.GetArgumentCount(); 1082 1083 for (uint32_t i=0; i<argc; ++i) 1084 { 1085 const char *image_token_cstr = command.GetArgumentAtIndex(i); 1086 uint32_t image_token = Args::StringToUInt32(image_token_cstr, LLDB_INVALID_IMAGE_TOKEN, 0); 1087 if (image_token == LLDB_INVALID_IMAGE_TOKEN) 1088 { 1089 result.AppendErrorWithFormat ("invalid image index argument '%s'", image_token_cstr); 1090 result.SetStatus (eReturnStatusFailed); 1091 break; 1092 } 1093 else 1094 { 1095 Error error (process->UnloadImage(image_token)); 1096 if (error.Success()) 1097 { 1098 result.AppendMessageWithFormat ("Unloading shared library with index %u...ok\n", image_token); 1099 result.SetStatus (eReturnStatusSuccessFinishResult); 1100 } 1101 else 1102 { 1103 result.AppendErrorWithFormat ("failed to unload image: %s", error.AsCString()); 1104 result.SetStatus (eReturnStatusFailed); 1105 break; 1106 } 1107 } 1108 } 1109 return result.Succeeded(); 1110 } 1111 }; 1112 1113 //------------------------------------------------------------------------- 1114 // CommandObjectProcessSignal 1115 //------------------------------------------------------------------------- 1116 #pragma mark CommandObjectProcessSignal 1117 1118 class CommandObjectProcessSignal : public CommandObject 1119 { 1120 public: 1121 1122 CommandObjectProcessSignal (CommandInterpreter &interpreter) : 1123 CommandObject (interpreter, 1124 "process signal", 1125 "Send a UNIX signal to the current process being debugged.", 1126 NULL) 1127 { 1128 CommandArgumentEntry arg; 1129 CommandArgumentData signal_arg; 1130 1131 // Define the first (and only) variant of this arg. 1132 signal_arg.arg_type = eArgTypeUnixSignal; 1133 signal_arg.arg_repetition = eArgRepeatPlain; 1134 1135 // There is only one variant this argument could be; put it into the argument entry. 1136 arg.push_back (signal_arg); 1137 1138 // Push the data for the first argument into the m_arguments vector. 1139 m_arguments.push_back (arg); 1140 } 1141 1142 ~CommandObjectProcessSignal () 1143 { 1144 } 1145 1146 bool 1147 Execute (Args& command, 1148 CommandReturnObject &result) 1149 { 1150 Process *process = m_interpreter.GetExecutionContext().GetProcessPtr(); 1151 if (process == NULL) 1152 { 1153 result.AppendError ("no process to signal"); 1154 result.SetStatus (eReturnStatusFailed); 1155 return false; 1156 } 1157 1158 if (command.GetArgumentCount() == 1) 1159 { 1160 int signo = LLDB_INVALID_SIGNAL_NUMBER; 1161 1162 const char *signal_name = command.GetArgumentAtIndex(0); 1163 if (::isxdigit (signal_name[0])) 1164 signo = Args::StringToSInt32(signal_name, LLDB_INVALID_SIGNAL_NUMBER, 0); 1165 else 1166 signo = process->GetUnixSignals().GetSignalNumberFromName (signal_name); 1167 1168 if (signo == LLDB_INVALID_SIGNAL_NUMBER) 1169 { 1170 result.AppendErrorWithFormat ("Invalid signal argument '%s'.\n", command.GetArgumentAtIndex(0)); 1171 result.SetStatus (eReturnStatusFailed); 1172 } 1173 else 1174 { 1175 Error error (process->Signal (signo)); 1176 if (error.Success()) 1177 { 1178 result.SetStatus (eReturnStatusSuccessFinishResult); 1179 } 1180 else 1181 { 1182 result.AppendErrorWithFormat ("Failed to send signal %i: %s\n", signo, error.AsCString()); 1183 result.SetStatus (eReturnStatusFailed); 1184 } 1185 } 1186 } 1187 else 1188 { 1189 result.AppendErrorWithFormat("'%s' takes exactly one signal number argument:\nUsage: %s\n", m_cmd_name.c_str(), 1190 m_cmd_syntax.c_str()); 1191 result.SetStatus (eReturnStatusFailed); 1192 } 1193 return result.Succeeded(); 1194 } 1195 }; 1196 1197 1198 //------------------------------------------------------------------------- 1199 // CommandObjectProcessInterrupt 1200 //------------------------------------------------------------------------- 1201 #pragma mark CommandObjectProcessInterrupt 1202 1203 class CommandObjectProcessInterrupt : public CommandObject 1204 { 1205 public: 1206 1207 1208 CommandObjectProcessInterrupt (CommandInterpreter &interpreter) : 1209 CommandObject (interpreter, 1210 "process interrupt", 1211 "Interrupt the current process being debugged.", 1212 "process interrupt", 1213 eFlagProcessMustBeLaunched) 1214 { 1215 } 1216 1217 ~CommandObjectProcessInterrupt () 1218 { 1219 } 1220 1221 bool 1222 Execute (Args& command, 1223 CommandReturnObject &result) 1224 { 1225 Process *process = m_interpreter.GetExecutionContext().GetProcessPtr(); 1226 if (process == NULL) 1227 { 1228 result.AppendError ("no process to halt"); 1229 result.SetStatus (eReturnStatusFailed); 1230 return false; 1231 } 1232 1233 if (command.GetArgumentCount() == 0) 1234 { 1235 Error error(process->Halt ()); 1236 if (error.Success()) 1237 { 1238 result.SetStatus (eReturnStatusSuccessFinishResult); 1239 1240 // Maybe we should add a "SuspendThreadPlans so we 1241 // can halt, and keep in place all the current thread plans. 1242 process->GetThreadList().DiscardThreadPlans(); 1243 } 1244 else 1245 { 1246 result.AppendErrorWithFormat ("Failed to halt process: %s\n", error.AsCString()); 1247 result.SetStatus (eReturnStatusFailed); 1248 } 1249 } 1250 else 1251 { 1252 result.AppendErrorWithFormat("'%s' takes no arguments:\nUsage: %s\n", 1253 m_cmd_name.c_str(), 1254 m_cmd_syntax.c_str()); 1255 result.SetStatus (eReturnStatusFailed); 1256 } 1257 return result.Succeeded(); 1258 } 1259 }; 1260 1261 //------------------------------------------------------------------------- 1262 // CommandObjectProcessKill 1263 //------------------------------------------------------------------------- 1264 #pragma mark CommandObjectProcessKill 1265 1266 class CommandObjectProcessKill : public CommandObject 1267 { 1268 public: 1269 1270 CommandObjectProcessKill (CommandInterpreter &interpreter) : 1271 CommandObject (interpreter, 1272 "process kill", 1273 "Terminate the current process being debugged.", 1274 "process kill", 1275 eFlagProcessMustBeLaunched) 1276 { 1277 } 1278 1279 ~CommandObjectProcessKill () 1280 { 1281 } 1282 1283 bool 1284 Execute (Args& command, 1285 CommandReturnObject &result) 1286 { 1287 Process *process = m_interpreter.GetExecutionContext().GetProcessPtr(); 1288 if (process == NULL) 1289 { 1290 result.AppendError ("no process to kill"); 1291 result.SetStatus (eReturnStatusFailed); 1292 return false; 1293 } 1294 1295 if (command.GetArgumentCount() == 0) 1296 { 1297 Error error (process->Destroy()); 1298 if (error.Success()) 1299 { 1300 result.SetStatus (eReturnStatusSuccessFinishResult); 1301 } 1302 else 1303 { 1304 result.AppendErrorWithFormat ("Failed to kill process: %s\n", error.AsCString()); 1305 result.SetStatus (eReturnStatusFailed); 1306 } 1307 } 1308 else 1309 { 1310 result.AppendErrorWithFormat("'%s' takes no arguments:\nUsage: %s\n", 1311 m_cmd_name.c_str(), 1312 m_cmd_syntax.c_str()); 1313 result.SetStatus (eReturnStatusFailed); 1314 } 1315 return result.Succeeded(); 1316 } 1317 }; 1318 1319 //------------------------------------------------------------------------- 1320 // CommandObjectProcessStatus 1321 //------------------------------------------------------------------------- 1322 #pragma mark CommandObjectProcessStatus 1323 1324 class CommandObjectProcessStatus : public CommandObject 1325 { 1326 public: 1327 CommandObjectProcessStatus (CommandInterpreter &interpreter) : 1328 CommandObject (interpreter, 1329 "process status", 1330 "Show the current status and location of executing process.", 1331 "process status", 1332 0) 1333 { 1334 } 1335 1336 ~CommandObjectProcessStatus() 1337 { 1338 } 1339 1340 1341 bool 1342 Execute 1343 ( 1344 Args& command, 1345 CommandReturnObject &result 1346 ) 1347 { 1348 Stream &strm = result.GetOutputStream(); 1349 result.SetStatus (eReturnStatusSuccessFinishNoResult); 1350 ExecutionContext exe_ctx(m_interpreter.GetExecutionContext()); 1351 Process *process = exe_ctx.GetProcessPtr(); 1352 if (process) 1353 { 1354 const bool only_threads_with_stop_reason = true; 1355 const uint32_t start_frame = 0; 1356 const uint32_t num_frames = 1; 1357 const uint32_t num_frames_with_source = 1; 1358 process->GetStatus(strm); 1359 process->GetThreadStatus (strm, 1360 only_threads_with_stop_reason, 1361 start_frame, 1362 num_frames, 1363 num_frames_with_source); 1364 1365 } 1366 else 1367 { 1368 result.AppendError ("No process."); 1369 result.SetStatus (eReturnStatusFailed); 1370 } 1371 return result.Succeeded(); 1372 } 1373 }; 1374 1375 //------------------------------------------------------------------------- 1376 // CommandObjectProcessHandle 1377 //------------------------------------------------------------------------- 1378 #pragma mark CommandObjectProcessHandle 1379 1380 class CommandObjectProcessHandle : public CommandObject 1381 { 1382 public: 1383 1384 class CommandOptions : public Options 1385 { 1386 public: 1387 1388 CommandOptions (CommandInterpreter &interpreter) : 1389 Options (interpreter) 1390 { 1391 OptionParsingStarting (); 1392 } 1393 1394 ~CommandOptions () 1395 { 1396 } 1397 1398 Error 1399 SetOptionValue (uint32_t option_idx, const char *option_arg) 1400 { 1401 Error error; 1402 char short_option = (char) m_getopt_table[option_idx].val; 1403 1404 switch (short_option) 1405 { 1406 case 's': 1407 stop = option_arg; 1408 break; 1409 case 'n': 1410 notify = option_arg; 1411 break; 1412 case 'p': 1413 pass = option_arg; 1414 break; 1415 default: 1416 error.SetErrorStringWithFormat("invalid short option character '%c'", short_option); 1417 break; 1418 } 1419 return error; 1420 } 1421 1422 void 1423 OptionParsingStarting () 1424 { 1425 stop.clear(); 1426 notify.clear(); 1427 pass.clear(); 1428 } 1429 1430 const OptionDefinition* 1431 GetDefinitions () 1432 { 1433 return g_option_table; 1434 } 1435 1436 // Options table: Required for subclasses of Options. 1437 1438 static OptionDefinition g_option_table[]; 1439 1440 // Instance variables to hold the values for command options. 1441 1442 std::string stop; 1443 std::string notify; 1444 std::string pass; 1445 }; 1446 1447 1448 CommandObjectProcessHandle (CommandInterpreter &interpreter) : 1449 CommandObject (interpreter, 1450 "process handle", 1451 "Show or update what the process and debugger should do with various signals received from the OS.", 1452 NULL), 1453 m_options (interpreter) 1454 { 1455 SetHelpLong ("If no signals are specified, update them all. If no update option is specified, list the current values.\n"); 1456 CommandArgumentEntry arg; 1457 CommandArgumentData signal_arg; 1458 1459 signal_arg.arg_type = eArgTypeUnixSignal; 1460 signal_arg.arg_repetition = eArgRepeatStar; 1461 1462 arg.push_back (signal_arg); 1463 1464 m_arguments.push_back (arg); 1465 } 1466 1467 ~CommandObjectProcessHandle () 1468 { 1469 } 1470 1471 Options * 1472 GetOptions () 1473 { 1474 return &m_options; 1475 } 1476 1477 bool 1478 VerifyCommandOptionValue (const std::string &option, int &real_value) 1479 { 1480 bool okay = true; 1481 1482 bool success = false; 1483 bool tmp_value = Args::StringToBoolean (option.c_str(), false, &success); 1484 1485 if (success && tmp_value) 1486 real_value = 1; 1487 else if (success && !tmp_value) 1488 real_value = 0; 1489 else 1490 { 1491 // If the value isn't 'true' or 'false', it had better be 0 or 1. 1492 real_value = Args::StringToUInt32 (option.c_str(), 3); 1493 if (real_value != 0 && real_value != 1) 1494 okay = false; 1495 } 1496 1497 return okay; 1498 } 1499 1500 void 1501 PrintSignalHeader (Stream &str) 1502 { 1503 str.Printf ("NAME PASS STOP NOTIFY\n"); 1504 str.Printf ("========== ===== ===== ======\n"); 1505 } 1506 1507 void 1508 PrintSignal (Stream &str, int32_t signo, const char *sig_name, UnixSignals &signals) 1509 { 1510 bool stop; 1511 bool suppress; 1512 bool notify; 1513 1514 str.Printf ("%-10s ", sig_name); 1515 if (signals.GetSignalInfo (signo, suppress, stop, notify)) 1516 { 1517 bool pass = !suppress; 1518 str.Printf ("%s %s %s", 1519 (pass ? "true " : "false"), 1520 (stop ? "true " : "false"), 1521 (notify ? "true " : "false")); 1522 } 1523 str.Printf ("\n"); 1524 } 1525 1526 void 1527 PrintSignalInformation (Stream &str, Args &signal_args, int num_valid_signals, UnixSignals &signals) 1528 { 1529 PrintSignalHeader (str); 1530 1531 if (num_valid_signals > 0) 1532 { 1533 size_t num_args = signal_args.GetArgumentCount(); 1534 for (size_t i = 0; i < num_args; ++i) 1535 { 1536 int32_t signo = signals.GetSignalNumberFromName (signal_args.GetArgumentAtIndex (i)); 1537 if (signo != LLDB_INVALID_SIGNAL_NUMBER) 1538 PrintSignal (str, signo, signal_args.GetArgumentAtIndex (i), signals); 1539 } 1540 } 1541 else // Print info for ALL signals 1542 { 1543 int32_t signo = signals.GetFirstSignalNumber(); 1544 while (signo != LLDB_INVALID_SIGNAL_NUMBER) 1545 { 1546 PrintSignal (str, signo, signals.GetSignalAsCString (signo), signals); 1547 signo = signals.GetNextSignalNumber (signo); 1548 } 1549 } 1550 } 1551 1552 bool 1553 Execute (Args &signal_args, CommandReturnObject &result) 1554 { 1555 TargetSP target_sp = m_interpreter.GetDebugger().GetSelectedTarget(); 1556 1557 if (!target_sp) 1558 { 1559 result.AppendError ("No current target;" 1560 " cannot handle signals until you have a valid target and process.\n"); 1561 result.SetStatus (eReturnStatusFailed); 1562 return false; 1563 } 1564 1565 ProcessSP process_sp = target_sp->GetProcessSP(); 1566 1567 if (!process_sp) 1568 { 1569 result.AppendError ("No current process; cannot handle signals until you have a valid process.\n"); 1570 result.SetStatus (eReturnStatusFailed); 1571 return false; 1572 } 1573 1574 int stop_action = -1; // -1 means leave the current setting alone 1575 int pass_action = -1; // -1 means leave the current setting alone 1576 int notify_action = -1; // -1 means leave the current setting alone 1577 1578 if (! m_options.stop.empty() 1579 && ! VerifyCommandOptionValue (m_options.stop, stop_action)) 1580 { 1581 result.AppendError ("Invalid argument for command option --stop; must be true or false.\n"); 1582 result.SetStatus (eReturnStatusFailed); 1583 return false; 1584 } 1585 1586 if (! m_options.notify.empty() 1587 && ! VerifyCommandOptionValue (m_options.notify, notify_action)) 1588 { 1589 result.AppendError ("Invalid argument for command option --notify; must be true or false.\n"); 1590 result.SetStatus (eReturnStatusFailed); 1591 return false; 1592 } 1593 1594 if (! m_options.pass.empty() 1595 && ! VerifyCommandOptionValue (m_options.pass, pass_action)) 1596 { 1597 result.AppendError ("Invalid argument for command option --pass; must be true or false.\n"); 1598 result.SetStatus (eReturnStatusFailed); 1599 return false; 1600 } 1601 1602 size_t num_args = signal_args.GetArgumentCount(); 1603 UnixSignals &signals = process_sp->GetUnixSignals(); 1604 int num_signals_set = 0; 1605 1606 if (num_args > 0) 1607 { 1608 for (size_t i = 0; i < num_args; ++i) 1609 { 1610 int32_t signo = signals.GetSignalNumberFromName (signal_args.GetArgumentAtIndex (i)); 1611 if (signo != LLDB_INVALID_SIGNAL_NUMBER) 1612 { 1613 // Casting the actions as bools here should be okay, because VerifyCommandOptionValue guarantees 1614 // the value is either 0 or 1. 1615 if (stop_action != -1) 1616 signals.SetShouldStop (signo, (bool) stop_action); 1617 if (pass_action != -1) 1618 { 1619 bool suppress = ! ((bool) pass_action); 1620 signals.SetShouldSuppress (signo, suppress); 1621 } 1622 if (notify_action != -1) 1623 signals.SetShouldNotify (signo, (bool) notify_action); 1624 ++num_signals_set; 1625 } 1626 else 1627 { 1628 result.AppendErrorWithFormat ("Invalid signal name '%s'\n", signal_args.GetArgumentAtIndex (i)); 1629 } 1630 } 1631 } 1632 else 1633 { 1634 // No signal specified, if any command options were specified, update ALL signals. 1635 if ((notify_action != -1) || (stop_action != -1) || (pass_action != -1)) 1636 { 1637 if (m_interpreter.Confirm ("Do you really want to update all the signals?", false)) 1638 { 1639 int32_t signo = signals.GetFirstSignalNumber(); 1640 while (signo != LLDB_INVALID_SIGNAL_NUMBER) 1641 { 1642 if (notify_action != -1) 1643 signals.SetShouldNotify (signo, (bool) notify_action); 1644 if (stop_action != -1) 1645 signals.SetShouldStop (signo, (bool) stop_action); 1646 if (pass_action != -1) 1647 { 1648 bool suppress = ! ((bool) pass_action); 1649 signals.SetShouldSuppress (signo, suppress); 1650 } 1651 signo = signals.GetNextSignalNumber (signo); 1652 } 1653 } 1654 } 1655 } 1656 1657 PrintSignalInformation (result.GetOutputStream(), signal_args, num_signals_set, signals); 1658 1659 if (num_signals_set > 0) 1660 result.SetStatus (eReturnStatusSuccessFinishNoResult); 1661 else 1662 result.SetStatus (eReturnStatusFailed); 1663 1664 return result.Succeeded(); 1665 } 1666 1667 protected: 1668 1669 CommandOptions m_options; 1670 }; 1671 1672 OptionDefinition 1673 CommandObjectProcessHandle::CommandOptions::g_option_table[] = 1674 { 1675 { 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." }, 1676 { 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." }, 1677 { LLDB_OPT_SET_1, false, "pass", 'p', required_argument, NULL, 0, eArgTypeBoolean, "Whether or not the signal should be passed to the process." }, 1678 { 0, false, NULL, 0, 0, NULL, 0, eArgTypeNone, NULL } 1679 }; 1680 1681 //------------------------------------------------------------------------- 1682 // CommandObjectMultiwordProcess 1683 //------------------------------------------------------------------------- 1684 1685 CommandObjectMultiwordProcess::CommandObjectMultiwordProcess (CommandInterpreter &interpreter) : 1686 CommandObjectMultiword (interpreter, 1687 "process", 1688 "A set of commands for operating on a process.", 1689 "process <subcommand> [<subcommand-options>]") 1690 { 1691 LoadSubCommand ("attach", CommandObjectSP (new CommandObjectProcessAttach (interpreter))); 1692 LoadSubCommand ("launch", CommandObjectSP (new CommandObjectProcessLaunch (interpreter))); 1693 LoadSubCommand ("continue", CommandObjectSP (new CommandObjectProcessContinue (interpreter))); 1694 LoadSubCommand ("connect", CommandObjectSP (new CommandObjectProcessConnect (interpreter))); 1695 LoadSubCommand ("detach", CommandObjectSP (new CommandObjectProcessDetach (interpreter))); 1696 LoadSubCommand ("load", CommandObjectSP (new CommandObjectProcessLoad (interpreter))); 1697 LoadSubCommand ("unload", CommandObjectSP (new CommandObjectProcessUnload (interpreter))); 1698 LoadSubCommand ("signal", CommandObjectSP (new CommandObjectProcessSignal (interpreter))); 1699 LoadSubCommand ("handle", CommandObjectSP (new CommandObjectProcessHandle (interpreter))); 1700 LoadSubCommand ("status", CommandObjectSP (new CommandObjectProcessStatus (interpreter))); 1701 LoadSubCommand ("interrupt", CommandObjectSP (new CommandObjectProcessInterrupt (interpreter))); 1702 LoadSubCommand ("kill", CommandObjectSP (new CommandObjectProcessKill (interpreter))); 1703 } 1704 1705 CommandObjectMultiwordProcess::~CommandObjectMultiwordProcess () 1706 { 1707 } 1708 1709