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