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/Breakpoint/Breakpoint.h" 17 #include "lldb/Breakpoint/BreakpointLocation.h" 18 #include "lldb/Breakpoint/BreakpointSite.h" 19 #include "lldb/Core/State.h" 20 #include "lldb/Host/Host.h" 21 #include "lldb/Interpreter/Args.h" 22 #include "lldb/Interpreter/Options.h" 23 #include "lldb/Interpreter/CommandInterpreter.h" 24 #include "lldb/Interpreter/CommandReturnObject.h" 25 #include "lldb/Target/Platform.h" 26 #include "lldb/Target/Process.h" 27 #include "lldb/Target/StopInfo.h" 28 #include "lldb/Target/Target.h" 29 #include "lldb/Target/Thread.h" 30 31 using namespace lldb; 32 using namespace lldb_private; 33 34 //------------------------------------------------------------------------- 35 // CommandObjectProcessLaunch 36 //------------------------------------------------------------------------- 37 #pragma mark CommandObjectProcessLaunch 38 class CommandObjectProcessLaunch : public CommandObjectParsed 39 { 40 public: 41 42 CommandObjectProcessLaunch (CommandInterpreter &interpreter) : 43 CommandObjectParsed (interpreter, 44 "process launch", 45 "Launch the executable in the debugger.", 46 NULL), 47 m_options (interpreter) 48 { 49 CommandArgumentEntry arg; 50 CommandArgumentData run_args_arg; 51 52 // Define the first (and only) variant of this arg. 53 run_args_arg.arg_type = eArgTypeRunArgs; 54 run_args_arg.arg_repetition = eArgRepeatOptional; 55 56 // There is only one variant this argument could be; put it into the argument entry. 57 arg.push_back (run_args_arg); 58 59 // Push the data for the first argument into the m_arguments vector. 60 m_arguments.push_back (arg); 61 } 62 63 64 ~CommandObjectProcessLaunch () 65 { 66 } 67 68 int 69 HandleArgumentCompletion (Args &input, 70 int &cursor_index, 71 int &cursor_char_position, 72 OptionElementVector &opt_element_vector, 73 int match_start_point, 74 int max_return_elements, 75 bool &word_complete, 76 StringList &matches) 77 { 78 std::string completion_str (input.GetArgumentAtIndex(cursor_index)); 79 completion_str.erase (cursor_char_position); 80 81 CommandCompletions::InvokeCommonCompletionCallbacks (m_interpreter, 82 CommandCompletions::eDiskFileCompletion, 83 completion_str.c_str(), 84 match_start_point, 85 max_return_elements, 86 NULL, 87 word_complete, 88 matches); 89 return matches.GetSize(); 90 } 91 92 Options * 93 GetOptions () 94 { 95 return &m_options; 96 } 97 98 virtual const char *GetRepeatCommand (Args ¤t_command_args, uint32_t index) 99 { 100 // No repeat for "process launch"... 101 return ""; 102 } 103 104 protected: 105 bool 106 DoExecute (Args& launch_args, CommandReturnObject &result) 107 { 108 Debugger &debugger = m_interpreter.GetDebugger(); 109 Target *target = debugger.GetSelectedTarget().get(); 110 Error error; 111 112 if (target == NULL) 113 { 114 result.AppendError ("invalid target, create a debug target using the 'target create' command"); 115 result.SetStatus (eReturnStatusFailed); 116 return false; 117 } 118 // If our listener is NULL, users aren't allows to launch 119 char filename[PATH_MAX]; 120 const Module *exe_module = target->GetExecutableModulePointer(); 121 122 if (exe_module == NULL) 123 { 124 result.AppendError ("no file in target, create a debug target using the 'target create' command"); 125 result.SetStatus (eReturnStatusFailed); 126 return false; 127 } 128 129 exe_module->GetFileSpec().GetPath (filename, sizeof(filename)); 130 131 const bool add_exe_file_as_first_arg = true; 132 m_options.launch_info.SetExecutableFile(exe_module->GetPlatformFileSpec(), add_exe_file_as_first_arg); 133 134 StateType state = eStateInvalid; 135 Process *process = m_interpreter.GetExecutionContext().GetProcessPtr(); 136 if (process) 137 { 138 state = process->GetState(); 139 140 if (process->IsAlive() && state != eStateConnected) 141 { 142 char message[1024]; 143 if (process->GetState() == eStateAttaching) 144 ::strncpy (message, "There is a pending attach, abort it and launch a new process?", sizeof(message)); 145 else 146 ::strncpy (message, "There is a running process, kill it and restart?", sizeof(message)); 147 148 if (!m_interpreter.Confirm (message, true)) 149 { 150 result.SetStatus (eReturnStatusFailed); 151 return false; 152 } 153 else 154 { 155 Error destroy_error (process->Destroy()); 156 if (destroy_error.Success()) 157 { 158 result.SetStatus (eReturnStatusSuccessFinishResult); 159 } 160 else 161 { 162 result.AppendErrorWithFormat ("Failed to kill process: %s\n", destroy_error.AsCString()); 163 result.SetStatus (eReturnStatusFailed); 164 } 165 } 166 } 167 } 168 169 if (launch_args.GetArgumentCount() == 0) 170 { 171 Args target_setting_args; 172 if (target->GetRunArguments(target_setting_args) > 0) 173 m_options.launch_info.GetArguments().AppendArguments (target_setting_args); 174 } 175 else 176 { 177 // Save the arguments for subsequent runs in the current target. 178 target->SetRunArguments (launch_args); 179 180 m_options.launch_info.GetArguments().AppendArguments (launch_args); 181 } 182 183 if (target->GetDisableASLR()) 184 m_options.launch_info.GetFlags().Set (eLaunchFlagDisableASLR); 185 186 if (target->GetDisableSTDIO()) 187 m_options.launch_info.GetFlags().Set (eLaunchFlagDisableSTDIO); 188 189 m_options.launch_info.GetFlags().Set (eLaunchFlagDebug); 190 191 Args environment; 192 target->GetEnvironmentAsArgs (environment); 193 if (environment.GetArgumentCount() > 0) 194 m_options.launch_info.GetEnvironmentEntries ().AppendArguments (environment); 195 196 // Finalize the file actions, and if none were given, default to opening 197 // up a pseudo terminal 198 const bool default_to_use_pty = true; 199 m_options.launch_info.FinalizeFileActions (target, default_to_use_pty); 200 201 if (state == eStateConnected) 202 { 203 if (m_options.launch_info.GetFlags().Test (eLaunchFlagLaunchInTTY)) 204 { 205 result.AppendWarning("can't launch in tty when launching through a remote connection"); 206 m_options.launch_info.GetFlags().Clear (eLaunchFlagLaunchInTTY); 207 } 208 } 209 else 210 { 211 if (!m_options.launch_info.GetArchitecture().IsValid()) 212 m_options.launch_info.GetArchitecture() = target->GetArchitecture(); 213 214 PlatformSP platform_sp (target->GetPlatform()); 215 216 if (platform_sp && platform_sp->CanDebugProcess ()) 217 { 218 process = target->GetPlatform()->DebugProcess (m_options.launch_info, 219 debugger, 220 target, 221 debugger.GetListener(), 222 error).get(); 223 } 224 else 225 { 226 const char *plugin_name = m_options.launch_info.GetProcessPluginName(); 227 process = target->CreateProcess (debugger.GetListener(), plugin_name, NULL).get(); 228 if (process) 229 error = process->Launch (m_options.launch_info); 230 } 231 232 if (process == NULL) 233 { 234 result.SetError (error, "failed to launch or debug process"); 235 return false; 236 } 237 } 238 239 if (error.Success()) 240 { 241 const char *archname = exe_module->GetArchitecture().GetArchitectureName(); 242 243 result.AppendMessageWithFormat ("Process %llu launched: '%s' (%s)\n", process->GetID(), filename, archname); 244 result.SetDidChangeProcessState (true); 245 if (m_options.launch_info.GetFlags().Test(eLaunchFlagStopAtEntry) == false) 246 { 247 result.SetStatus (eReturnStatusSuccessContinuingNoResult); 248 StateType state = process->WaitForProcessToStop (NULL); 249 250 if (state == eStateStopped) 251 { 252 error = process->Resume(); 253 if (error.Success()) 254 { 255 bool synchronous_execution = m_interpreter.GetSynchronous (); 256 if (synchronous_execution) 257 { 258 state = process->WaitForProcessToStop (NULL); 259 const bool must_be_alive = true; 260 if (!StateIsStoppedState(state, must_be_alive)) 261 { 262 result.AppendErrorWithFormat ("process isn't stopped: %s", StateAsCString(state)); 263 } 264 result.SetDidChangeProcessState (true); 265 result.SetStatus (eReturnStatusSuccessFinishResult); 266 } 267 else 268 { 269 result.SetStatus (eReturnStatusSuccessContinuingNoResult); 270 } 271 } 272 else 273 { 274 result.AppendErrorWithFormat ("process resume at entry point failed: %s", error.AsCString()); 275 result.SetStatus (eReturnStatusFailed); 276 } 277 } 278 else 279 { 280 result.AppendErrorWithFormat ("initial process state wasn't stopped: %s", StateAsCString(state)); 281 result.SetStatus (eReturnStatusFailed); 282 } 283 } 284 } 285 else 286 { 287 result.AppendErrorWithFormat ("process launch failed: %s", error.AsCString()); 288 result.SetStatus (eReturnStatusFailed); 289 } 290 291 return result.Succeeded(); 292 } 293 294 protected: 295 ProcessLaunchCommandOptions m_options; 296 }; 297 298 299 //#define SET1 LLDB_OPT_SET_1 300 //#define SET2 LLDB_OPT_SET_2 301 //#define SET3 LLDB_OPT_SET_3 302 // 303 //OptionDefinition 304 //CommandObjectProcessLaunch::CommandOptions::g_option_table[] = 305 //{ 306 //{ 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."}, 307 //{ SET1 , false, "stdin", 'i', required_argument, NULL, 0, eArgTypePath, "Redirect stdin for the process to <path>."}, 308 //{ SET1 , false, "stdout", 'o', required_argument, NULL, 0, eArgTypePath, "Redirect stdout for the process to <path>."}, 309 //{ SET1 , false, "stderr", 'e', required_argument, NULL, 0, eArgTypePath, "Redirect stderr for the process to <path>."}, 310 //{ SET1 | SET2 | SET3, false, "plugin", 'p', required_argument, NULL, 0, eArgTypePlugin, "Name of the process plugin you want to use."}, 311 //{ 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."}, 312 //{ SET3, false, "no-stdio", 'n', no_argument, NULL, 0, eArgTypeNone, "Do not set up for terminal I/O to go to running process."}, 313 //{ SET1 | SET2 | SET3, false, "working-dir", 'w', required_argument, NULL, 0, eArgTypePath, "Set the current working directory to <path> when running the inferior."}, 314 //{ 0, false, NULL, 0, 0, NULL, 0, eArgTypeNone, NULL } 315 //}; 316 // 317 //#undef SET1 318 //#undef SET2 319 //#undef SET3 320 321 //------------------------------------------------------------------------- 322 // CommandObjectProcessAttach 323 //------------------------------------------------------------------------- 324 #pragma mark CommandObjectProcessAttach 325 class CommandObjectProcessAttach : public CommandObjectParsed 326 { 327 public: 328 329 class CommandOptions : public Options 330 { 331 public: 332 333 CommandOptions (CommandInterpreter &interpreter) : 334 Options(interpreter) 335 { 336 // Keep default values of all options in one place: OptionParsingStarting () 337 OptionParsingStarting (); 338 } 339 340 ~CommandOptions () 341 { 342 } 343 344 Error 345 SetOptionValue (uint32_t option_idx, const char *option_arg) 346 { 347 Error error; 348 char short_option = (char) m_getopt_table[option_idx].val; 349 bool success = false; 350 switch (short_option) 351 { 352 case 'c': 353 attach_info.SetContinueOnceAttached(true); 354 break; 355 356 case 'p': 357 { 358 lldb::pid_t pid = Args::StringToUInt32 (option_arg, LLDB_INVALID_PROCESS_ID, 0, &success); 359 if (!success || pid == LLDB_INVALID_PROCESS_ID) 360 { 361 error.SetErrorStringWithFormat("invalid process ID '%s'", option_arg); 362 } 363 else 364 { 365 attach_info.SetProcessID (pid); 366 } 367 } 368 break; 369 370 case 'P': 371 attach_info.SetProcessPluginName (option_arg); 372 break; 373 374 case 'n': 375 attach_info.GetExecutableFile().SetFile(option_arg, false); 376 break; 377 378 case 'w': 379 attach_info.SetWaitForLaunch(true); 380 break; 381 382 case 'i': 383 attach_info.SetIgnoreExisting(false); 384 break; 385 386 default: 387 error.SetErrorStringWithFormat("invalid short option character '%c'", short_option); 388 break; 389 } 390 return error; 391 } 392 393 void 394 OptionParsingStarting () 395 { 396 attach_info.Clear(); 397 } 398 399 const OptionDefinition* 400 GetDefinitions () 401 { 402 return g_option_table; 403 } 404 405 virtual bool 406 HandleOptionArgumentCompletion (Args &input, 407 int cursor_index, 408 int char_pos, 409 OptionElementVector &opt_element_vector, 410 int opt_element_index, 411 int match_start_point, 412 int max_return_elements, 413 bool &word_complete, 414 StringList &matches) 415 { 416 int opt_arg_pos = opt_element_vector[opt_element_index].opt_arg_pos; 417 int opt_defs_index = opt_element_vector[opt_element_index].opt_defs_index; 418 419 // We are only completing the name option for now... 420 421 const OptionDefinition *opt_defs = GetDefinitions(); 422 if (opt_defs[opt_defs_index].short_option == 'n') 423 { 424 // Are we in the name? 425 426 // Look to see if there is a -P argument provided, and if so use that plugin, otherwise 427 // use the default plugin. 428 429 const char *partial_name = NULL; 430 partial_name = input.GetArgumentAtIndex(opt_arg_pos); 431 432 PlatformSP platform_sp (m_interpreter.GetPlatform (true)); 433 if (platform_sp) 434 { 435 ProcessInstanceInfoList process_infos; 436 ProcessInstanceInfoMatch match_info; 437 if (partial_name) 438 { 439 match_info.GetProcessInfo().GetExecutableFile().SetFile(partial_name, false); 440 match_info.SetNameMatchType(eNameMatchStartsWith); 441 } 442 platform_sp->FindProcesses (match_info, process_infos); 443 const uint32_t num_matches = process_infos.GetSize(); 444 if (num_matches > 0) 445 { 446 for (uint32_t i=0; i<num_matches; ++i) 447 { 448 matches.AppendString (process_infos.GetProcessNameAtIndex(i), 449 process_infos.GetProcessNameLengthAtIndex(i)); 450 } 451 } 452 } 453 } 454 455 return false; 456 } 457 458 // Options table: Required for subclasses of Options. 459 460 static OptionDefinition g_option_table[]; 461 462 // Instance variables to hold the values for command options. 463 464 ProcessAttachInfo attach_info; 465 }; 466 467 CommandObjectProcessAttach (CommandInterpreter &interpreter) : 468 CommandObjectParsed (interpreter, 469 "process attach", 470 "Attach to a process.", 471 "process attach <cmd-options>"), 472 m_options (interpreter) 473 { 474 } 475 476 ~CommandObjectProcessAttach () 477 { 478 } 479 480 Options * 481 GetOptions () 482 { 483 return &m_options; 484 } 485 486 protected: 487 bool 488 DoExecute (Args& command, 489 CommandReturnObject &result) 490 { 491 Target *target = m_interpreter.GetDebugger().GetSelectedTarget().get(); 492 // N.B. The attach should be synchronous. It doesn't help much to get the prompt back between initiating the attach 493 // and the target actually stopping. So even if the interpreter is set to be asynchronous, we wait for the stop 494 // ourselves here. 495 496 Process *process = m_interpreter.GetExecutionContext().GetProcessPtr(); 497 StateType state = eStateInvalid; 498 if (process) 499 { 500 state = process->GetState(); 501 if (process->IsAlive() && state != eStateConnected) 502 { 503 result.AppendErrorWithFormat ("Process %llu is currently being debugged, kill the process before attaching.\n", 504 process->GetID()); 505 result.SetStatus (eReturnStatusFailed); 506 return false; 507 } 508 } 509 510 if (target == NULL) 511 { 512 // If there isn't a current target create one. 513 TargetSP new_target_sp; 514 FileSpec emptyFileSpec; 515 Error error; 516 517 error = m_interpreter.GetDebugger().GetTargetList().CreateTarget (m_interpreter.GetDebugger(), 518 emptyFileSpec, 519 NULL, 520 false, 521 NULL, // No platform options 522 new_target_sp); 523 target = new_target_sp.get(); 524 if (target == NULL || error.Fail()) 525 { 526 result.AppendError(error.AsCString("Error creating target")); 527 return false; 528 } 529 m_interpreter.GetDebugger().GetTargetList().SetSelectedTarget(target); 530 } 531 532 // Record the old executable module, we want to issue a warning if the process of attaching changed the 533 // current executable (like somebody said "file foo" then attached to a PID whose executable was bar.) 534 535 ModuleSP old_exec_module_sp = target->GetExecutableModule(); 536 ArchSpec old_arch_spec = target->GetArchitecture(); 537 538 if (command.GetArgumentCount()) 539 { 540 result.AppendErrorWithFormat("Invalid arguments for '%s'.\nUsage: %s\n", m_cmd_name.c_str(), m_cmd_syntax.c_str()); 541 result.SetStatus (eReturnStatusFailed); 542 } 543 else 544 { 545 if (state != eStateConnected) 546 { 547 const char *plugin_name = m_options.attach_info.GetProcessPluginName(); 548 process = target->CreateProcess (m_interpreter.GetDebugger().GetListener(), plugin_name, NULL).get(); 549 } 550 551 if (process) 552 { 553 Error error; 554 // If no process info was specified, then use the target executable 555 // name as the process to attach to by default 556 if (!m_options.attach_info.ProcessInfoSpecified ()) 557 { 558 if (old_exec_module_sp) 559 m_options.attach_info.GetExecutableFile().GetFilename() = old_exec_module_sp->GetPlatformFileSpec().GetFilename(); 560 561 if (!m_options.attach_info.ProcessInfoSpecified ()) 562 { 563 error.SetErrorString ("no process specified, create a target with a file, or specify the --pid or --name command option"); 564 } 565 } 566 567 if (error.Success()) 568 { 569 error = process->Attach (m_options.attach_info); 570 571 if (error.Success()) 572 { 573 result.SetStatus (eReturnStatusSuccessContinuingNoResult); 574 } 575 else 576 { 577 result.AppendErrorWithFormat ("attach failed: %s\n", error.AsCString()); 578 result.SetStatus (eReturnStatusFailed); 579 return false; 580 } 581 // If we're synchronous, wait for the stopped event and report that. 582 // Otherwise just return. 583 // FIXME: in the async case it will now be possible to get to the command 584 // interpreter with a state eStateAttaching. Make sure we handle that correctly. 585 StateType state = process->WaitForProcessToStop (NULL); 586 587 result.SetDidChangeProcessState (true); 588 589 if (state == eStateStopped) 590 { 591 result.AppendMessageWithFormat ("Process %llu %s\n", process->GetID(), StateAsCString (state)); 592 result.SetStatus (eReturnStatusSuccessFinishNoResult); 593 } 594 else 595 { 596 result.AppendError ("attach failed: process did not stop (no such process or permission problem?)"); 597 process->Destroy(); 598 result.SetStatus (eReturnStatusFailed); 599 return false; 600 } 601 } 602 } 603 } 604 605 if (result.Succeeded()) 606 { 607 // Okay, we're done. Last step is to warn if the executable module has changed: 608 char new_path[PATH_MAX]; 609 ModuleSP new_exec_module_sp (target->GetExecutableModule()); 610 if (!old_exec_module_sp) 611 { 612 // We might not have a module if we attached to a raw pid... 613 if (new_exec_module_sp) 614 { 615 new_exec_module_sp->GetFileSpec().GetPath(new_path, PATH_MAX); 616 result.AppendMessageWithFormat("Executable module set to \"%s\".\n", new_path); 617 } 618 } 619 else if (old_exec_module_sp->GetFileSpec() != new_exec_module_sp->GetFileSpec()) 620 { 621 char old_path[PATH_MAX]; 622 623 old_exec_module_sp->GetFileSpec().GetPath (old_path, PATH_MAX); 624 new_exec_module_sp->GetFileSpec().GetPath (new_path, PATH_MAX); 625 626 result.AppendWarningWithFormat("Executable module changed from \"%s\" to \"%s\".\n", 627 old_path, new_path); 628 } 629 630 if (!old_arch_spec.IsValid()) 631 { 632 result.AppendMessageWithFormat ("Architecture set to: %s.\n", target->GetArchitecture().GetArchitectureName()); 633 } 634 else if (old_arch_spec != target->GetArchitecture()) 635 { 636 result.AppendWarningWithFormat("Architecture changed from %s to %s.\n", 637 old_arch_spec.GetArchitectureName(), target->GetArchitecture().GetArchitectureName()); 638 } 639 640 // This supports the use-case scenario of immediately continuing the process once attached. 641 if (m_options.attach_info.GetContinueOnceAttached()) 642 m_interpreter.HandleCommand("process continue", eLazyBoolNo, result); 643 } 644 return result.Succeeded(); 645 } 646 647 CommandOptions m_options; 648 }; 649 650 651 OptionDefinition 652 CommandObjectProcessAttach::CommandOptions::g_option_table[] = 653 { 654 { LLDB_OPT_SET_ALL, false, "continue",'c', no_argument, NULL, 0, eArgTypeNone, "Immediately continue the process once attached."}, 655 { LLDB_OPT_SET_ALL, false, "plugin", 'P', required_argument, NULL, 0, eArgTypePlugin, "Name of the process plugin you want to use."}, 656 { LLDB_OPT_SET_1, false, "pid", 'p', required_argument, NULL, 0, eArgTypePid, "The process ID of an existing process to attach to."}, 657 { LLDB_OPT_SET_2, false, "name", 'n', required_argument, NULL, 0, eArgTypeProcessName, "The name of the process to attach to."}, 658 { LLDB_OPT_SET_2, false, "include-existing", 'i', no_argument, NULL, 0, eArgTypeNone, "Include existing processes when doing attach -w."}, 659 { LLDB_OPT_SET_2, false, "waitfor", 'w', no_argument, NULL, 0, eArgTypeNone, "Wait for the process with <process-name> to launch."}, 660 { 0, false, NULL, 0, 0, NULL, 0, eArgTypeNone, NULL } 661 }; 662 663 //------------------------------------------------------------------------- 664 // CommandObjectProcessContinue 665 //------------------------------------------------------------------------- 666 #pragma mark CommandObjectProcessContinue 667 668 class CommandObjectProcessContinue : public CommandObjectParsed 669 { 670 public: 671 672 CommandObjectProcessContinue (CommandInterpreter &interpreter) : 673 CommandObjectParsed (interpreter, 674 "process continue", 675 "Continue execution of all threads in the current process.", 676 "process continue", 677 eFlagProcessMustBeLaunched | eFlagProcessMustBePaused), 678 m_options(interpreter) 679 { 680 } 681 682 683 ~CommandObjectProcessContinue () 684 { 685 } 686 687 protected: 688 689 class CommandOptions : public Options 690 { 691 public: 692 693 CommandOptions (CommandInterpreter &interpreter) : 694 Options(interpreter) 695 { 696 // Keep default values of all options in one place: OptionParsingStarting () 697 OptionParsingStarting (); 698 } 699 700 ~CommandOptions () 701 { 702 } 703 704 Error 705 SetOptionValue (uint32_t option_idx, const char *option_arg) 706 { 707 Error error; 708 char short_option = (char) m_getopt_table[option_idx].val; 709 bool success = false; 710 switch (short_option) 711 { 712 case 'i': 713 m_ignore = Args::StringToUInt32 (option_arg, 0, 0, &success); 714 if (!success) 715 error.SetErrorStringWithFormat ("invalid value for ignore option: \"%s\", should be a number.", option_arg); 716 break; 717 718 default: 719 error.SetErrorStringWithFormat("invalid short option character '%c'", short_option); 720 break; 721 } 722 return error; 723 } 724 725 void 726 OptionParsingStarting () 727 { 728 m_ignore = 0; 729 } 730 731 const OptionDefinition* 732 GetDefinitions () 733 { 734 return g_option_table; 735 } 736 737 // Options table: Required for subclasses of Options. 738 739 static OptionDefinition g_option_table[]; 740 741 uint32_t m_ignore; 742 }; 743 744 bool 745 DoExecute (Args& command, 746 CommandReturnObject &result) 747 { 748 Process *process = m_interpreter.GetExecutionContext().GetProcessPtr(); 749 bool synchronous_execution = m_interpreter.GetSynchronous (); 750 751 if (process == NULL) 752 { 753 result.AppendError ("no process to continue"); 754 result.SetStatus (eReturnStatusFailed); 755 return false; 756 } 757 758 StateType state = process->GetState(); 759 if (state == eStateStopped) 760 { 761 if (command.GetArgumentCount() != 0) 762 { 763 result.AppendErrorWithFormat ("The '%s' command does not take any arguments.\n", m_cmd_name.c_str()); 764 result.SetStatus (eReturnStatusFailed); 765 return false; 766 } 767 768 if (m_options.m_ignore > 0) 769 { 770 ThreadSP sel_thread_sp(process->GetThreadList().GetSelectedThread()); 771 if (sel_thread_sp) 772 { 773 StopInfoSP stop_info_sp = sel_thread_sp->GetStopInfo(); 774 if (stop_info_sp && stop_info_sp->GetStopReason() == eStopReasonBreakpoint) 775 { 776 uint64_t bp_site_id = stop_info_sp->GetValue(); 777 BreakpointSiteSP bp_site_sp(process->GetBreakpointSiteList().FindByID(bp_site_id)); 778 if (bp_site_sp) 779 { 780 uint32_t num_owners = bp_site_sp->GetNumberOfOwners(); 781 for (uint32_t i = 0; i < num_owners; i++) 782 { 783 Breakpoint &bp_ref = bp_site_sp->GetOwnerAtIndex(i)->GetBreakpoint(); 784 if (!bp_ref.IsInternal()) 785 { 786 bp_ref.SetIgnoreCount(m_options.m_ignore); 787 } 788 } 789 } 790 } 791 } 792 } 793 794 const uint32_t num_threads = process->GetThreadList().GetSize(); 795 796 // Set the actions that the threads should each take when resuming 797 for (uint32_t idx=0; idx<num_threads; ++idx) 798 { 799 process->GetThreadList().GetThreadAtIndex(idx)->SetResumeState (eStateRunning); 800 } 801 802 Error error(process->Resume()); 803 if (error.Success()) 804 { 805 result.AppendMessageWithFormat ("Process %llu resuming\n", process->GetID()); 806 if (synchronous_execution) 807 { 808 state = process->WaitForProcessToStop (NULL); 809 810 result.SetDidChangeProcessState (true); 811 result.AppendMessageWithFormat ("Process %llu %s\n", process->GetID(), StateAsCString (state)); 812 result.SetStatus (eReturnStatusSuccessFinishNoResult); 813 } 814 else 815 { 816 result.SetStatus (eReturnStatusSuccessContinuingNoResult); 817 } 818 } 819 else 820 { 821 result.AppendErrorWithFormat("Failed to resume process: %s.\n", error.AsCString()); 822 result.SetStatus (eReturnStatusFailed); 823 } 824 } 825 else 826 { 827 result.AppendErrorWithFormat ("Process cannot be continued from its current state (%s).\n", 828 StateAsCString(state)); 829 result.SetStatus (eReturnStatusFailed); 830 } 831 return result.Succeeded(); 832 } 833 834 Options * 835 GetOptions () 836 { 837 return &m_options; 838 } 839 840 CommandOptions m_options; 841 842 }; 843 844 OptionDefinition 845 CommandObjectProcessContinue::CommandOptions::g_option_table[] = 846 { 847 { LLDB_OPT_SET_ALL, false, "ignore-count",'i', required_argument, NULL, 0, eArgTypeUnsignedInteger, 848 "Ignore <N> crossings of the breakpoint (if it exists) for the currently selected thread."}, 849 { 0, false, NULL, 0, 0, NULL, 0, eArgTypeNone, NULL } 850 }; 851 852 //------------------------------------------------------------------------- 853 // CommandObjectProcessDetach 854 //------------------------------------------------------------------------- 855 #pragma mark CommandObjectProcessDetach 856 857 class CommandObjectProcessDetach : public CommandObjectParsed 858 { 859 public: 860 861 CommandObjectProcessDetach (CommandInterpreter &interpreter) : 862 CommandObjectParsed (interpreter, 863 "process detach", 864 "Detach from the current process being debugged.", 865 "process detach", 866 eFlagProcessMustBeLaunched) 867 { 868 } 869 870 ~CommandObjectProcessDetach () 871 { 872 } 873 874 protected: 875 bool 876 DoExecute (Args& command, 877 CommandReturnObject &result) 878 { 879 Process *process = m_interpreter.GetExecutionContext().GetProcessPtr(); 880 if (process == NULL) 881 { 882 result.AppendError ("must have a valid process in order to detach"); 883 result.SetStatus (eReturnStatusFailed); 884 return false; 885 } 886 887 result.AppendMessageWithFormat ("Detaching from process %llu\n", process->GetID()); 888 Error error (process->Detach()); 889 if (error.Success()) 890 { 891 result.SetStatus (eReturnStatusSuccessFinishResult); 892 } 893 else 894 { 895 result.AppendErrorWithFormat ("Detach failed: %s\n", error.AsCString()); 896 result.SetStatus (eReturnStatusFailed); 897 return false; 898 } 899 return result.Succeeded(); 900 } 901 }; 902 903 //------------------------------------------------------------------------- 904 // CommandObjectProcessConnect 905 //------------------------------------------------------------------------- 906 #pragma mark CommandObjectProcessConnect 907 908 class CommandObjectProcessConnect : public CommandObjectParsed 909 { 910 public: 911 912 class CommandOptions : public Options 913 { 914 public: 915 916 CommandOptions (CommandInterpreter &interpreter) : 917 Options(interpreter) 918 { 919 // Keep default values of all options in one place: OptionParsingStarting () 920 OptionParsingStarting (); 921 } 922 923 ~CommandOptions () 924 { 925 } 926 927 Error 928 SetOptionValue (uint32_t option_idx, const char *option_arg) 929 { 930 Error error; 931 char short_option = (char) m_getopt_table[option_idx].val; 932 933 switch (short_option) 934 { 935 case 'p': 936 plugin_name.assign (option_arg); 937 break; 938 939 default: 940 error.SetErrorStringWithFormat("invalid short option character '%c'", short_option); 941 break; 942 } 943 return error; 944 } 945 946 void 947 OptionParsingStarting () 948 { 949 plugin_name.clear(); 950 } 951 952 const OptionDefinition* 953 GetDefinitions () 954 { 955 return g_option_table; 956 } 957 958 // Options table: Required for subclasses of Options. 959 960 static OptionDefinition g_option_table[]; 961 962 // Instance variables to hold the values for command options. 963 964 std::string plugin_name; 965 }; 966 967 CommandObjectProcessConnect (CommandInterpreter &interpreter) : 968 CommandObjectParsed (interpreter, 969 "process connect", 970 "Connect to a remote debug service.", 971 "process connect <remote-url>", 972 0), 973 m_options (interpreter) 974 { 975 } 976 977 ~CommandObjectProcessConnect () 978 { 979 } 980 981 982 Options * 983 GetOptions () 984 { 985 return &m_options; 986 } 987 988 protected: 989 bool 990 DoExecute (Args& command, 991 CommandReturnObject &result) 992 { 993 994 TargetSP target_sp (m_interpreter.GetDebugger().GetSelectedTarget()); 995 Error error; 996 Process *process = m_interpreter.GetExecutionContext().GetProcessPtr(); 997 if (process) 998 { 999 if (process->IsAlive()) 1000 { 1001 result.AppendErrorWithFormat ("Process %llu is currently being debugged, kill the process before connecting.\n", 1002 process->GetID()); 1003 result.SetStatus (eReturnStatusFailed); 1004 return false; 1005 } 1006 } 1007 1008 if (!target_sp) 1009 { 1010 // If there isn't a current target create one. 1011 FileSpec emptyFileSpec; 1012 1013 error = m_interpreter.GetDebugger().GetTargetList().CreateTarget (m_interpreter.GetDebugger(), 1014 emptyFileSpec, 1015 NULL, 1016 false, 1017 NULL, // No platform options 1018 target_sp); 1019 if (!target_sp || error.Fail()) 1020 { 1021 result.AppendError(error.AsCString("Error creating target")); 1022 result.SetStatus (eReturnStatusFailed); 1023 return false; 1024 } 1025 m_interpreter.GetDebugger().GetTargetList().SetSelectedTarget(target_sp.get()); 1026 } 1027 1028 if (command.GetArgumentCount() == 1) 1029 { 1030 const char *plugin_name = NULL; 1031 if (!m_options.plugin_name.empty()) 1032 plugin_name = m_options.plugin_name.c_str(); 1033 1034 const char *remote_url = command.GetArgumentAtIndex(0); 1035 process = target_sp->CreateProcess (m_interpreter.GetDebugger().GetListener(), plugin_name, NULL).get(); 1036 1037 if (process) 1038 { 1039 error = process->ConnectRemote (remote_url); 1040 1041 if (error.Fail()) 1042 { 1043 result.AppendError(error.AsCString("Remote connect failed")); 1044 result.SetStatus (eReturnStatusFailed); 1045 target_sp->DeleteCurrentProcess(); 1046 return false; 1047 } 1048 } 1049 else 1050 { 1051 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", 1052 m_cmd_name.c_str()); 1053 result.SetStatus (eReturnStatusFailed); 1054 } 1055 } 1056 else 1057 { 1058 result.AppendErrorWithFormat ("'%s' takes exactly one argument:\nUsage: %s\n", 1059 m_cmd_name.c_str(), 1060 m_cmd_syntax.c_str()); 1061 result.SetStatus (eReturnStatusFailed); 1062 } 1063 return result.Succeeded(); 1064 } 1065 1066 CommandOptions m_options; 1067 }; 1068 1069 1070 OptionDefinition 1071 CommandObjectProcessConnect::CommandOptions::g_option_table[] = 1072 { 1073 { LLDB_OPT_SET_ALL, false, "plugin", 'p', required_argument, NULL, 0, eArgTypePlugin, "Name of the process plugin you want to use."}, 1074 { 0, false, NULL, 0 , 0, NULL, 0, eArgTypeNone, NULL } 1075 }; 1076 1077 //------------------------------------------------------------------------- 1078 // CommandObjectProcessLoad 1079 //------------------------------------------------------------------------- 1080 #pragma mark CommandObjectProcessLoad 1081 1082 class CommandObjectProcessLoad : public CommandObjectParsed 1083 { 1084 public: 1085 1086 CommandObjectProcessLoad (CommandInterpreter &interpreter) : 1087 CommandObjectParsed (interpreter, 1088 "process load", 1089 "Load a shared library into the current process.", 1090 "process load <filename> [<filename> ...]", 1091 eFlagProcessMustBeLaunched | eFlagProcessMustBePaused) 1092 { 1093 } 1094 1095 ~CommandObjectProcessLoad () 1096 { 1097 } 1098 1099 protected: 1100 bool 1101 DoExecute (Args& command, 1102 CommandReturnObject &result) 1103 { 1104 Process *process = m_interpreter.GetExecutionContext().GetProcessPtr(); 1105 if (process == NULL) 1106 { 1107 result.AppendError ("must have a valid process in order to load a shared library"); 1108 result.SetStatus (eReturnStatusFailed); 1109 return false; 1110 } 1111 1112 const uint32_t argc = command.GetArgumentCount(); 1113 1114 for (uint32_t i=0; i<argc; ++i) 1115 { 1116 Error error; 1117 const char *image_path = command.GetArgumentAtIndex(i); 1118 FileSpec image_spec (image_path, false); 1119 process->GetTarget().GetPlatform()->ResolveRemotePath(image_spec, image_spec); 1120 uint32_t image_token = process->LoadImage(image_spec, error); 1121 if (image_token != LLDB_INVALID_IMAGE_TOKEN) 1122 { 1123 result.AppendMessageWithFormat ("Loading \"%s\"...ok\nImage %u loaded.\n", image_path, image_token); 1124 result.SetStatus (eReturnStatusSuccessFinishResult); 1125 } 1126 else 1127 { 1128 result.AppendErrorWithFormat ("failed to load '%s': %s", image_path, error.AsCString()); 1129 result.SetStatus (eReturnStatusFailed); 1130 } 1131 } 1132 return result.Succeeded(); 1133 } 1134 }; 1135 1136 1137 //------------------------------------------------------------------------- 1138 // CommandObjectProcessUnload 1139 //------------------------------------------------------------------------- 1140 #pragma mark CommandObjectProcessUnload 1141 1142 class CommandObjectProcessUnload : public CommandObjectParsed 1143 { 1144 public: 1145 1146 CommandObjectProcessUnload (CommandInterpreter &interpreter) : 1147 CommandObjectParsed (interpreter, 1148 "process unload", 1149 "Unload a shared library from the current process using the index returned by a previous call to \"process load\".", 1150 "process unload <index>", 1151 eFlagProcessMustBeLaunched | eFlagProcessMustBePaused) 1152 { 1153 } 1154 1155 ~CommandObjectProcessUnload () 1156 { 1157 } 1158 1159 protected: 1160 bool 1161 DoExecute (Args& command, 1162 CommandReturnObject &result) 1163 { 1164 Process *process = m_interpreter.GetExecutionContext().GetProcessPtr(); 1165 if (process == NULL) 1166 { 1167 result.AppendError ("must have a valid process in order to load a shared library"); 1168 result.SetStatus (eReturnStatusFailed); 1169 return false; 1170 } 1171 1172 const uint32_t argc = command.GetArgumentCount(); 1173 1174 for (uint32_t i=0; i<argc; ++i) 1175 { 1176 const char *image_token_cstr = command.GetArgumentAtIndex(i); 1177 uint32_t image_token = Args::StringToUInt32(image_token_cstr, LLDB_INVALID_IMAGE_TOKEN, 0); 1178 if (image_token == LLDB_INVALID_IMAGE_TOKEN) 1179 { 1180 result.AppendErrorWithFormat ("invalid image index argument '%s'", image_token_cstr); 1181 result.SetStatus (eReturnStatusFailed); 1182 break; 1183 } 1184 else 1185 { 1186 Error error (process->UnloadImage(image_token)); 1187 if (error.Success()) 1188 { 1189 result.AppendMessageWithFormat ("Unloading shared library with index %u...ok\n", image_token); 1190 result.SetStatus (eReturnStatusSuccessFinishResult); 1191 } 1192 else 1193 { 1194 result.AppendErrorWithFormat ("failed to unload image: %s", error.AsCString()); 1195 result.SetStatus (eReturnStatusFailed); 1196 break; 1197 } 1198 } 1199 } 1200 return result.Succeeded(); 1201 } 1202 }; 1203 1204 //------------------------------------------------------------------------- 1205 // CommandObjectProcessSignal 1206 //------------------------------------------------------------------------- 1207 #pragma mark CommandObjectProcessSignal 1208 1209 class CommandObjectProcessSignal : public CommandObjectParsed 1210 { 1211 public: 1212 1213 CommandObjectProcessSignal (CommandInterpreter &interpreter) : 1214 CommandObjectParsed (interpreter, 1215 "process signal", 1216 "Send a UNIX signal to the current process being debugged.", 1217 NULL) 1218 { 1219 CommandArgumentEntry arg; 1220 CommandArgumentData signal_arg; 1221 1222 // Define the first (and only) variant of this arg. 1223 signal_arg.arg_type = eArgTypeUnixSignal; 1224 signal_arg.arg_repetition = eArgRepeatPlain; 1225 1226 // There is only one variant this argument could be; put it into the argument entry. 1227 arg.push_back (signal_arg); 1228 1229 // Push the data for the first argument into the m_arguments vector. 1230 m_arguments.push_back (arg); 1231 } 1232 1233 ~CommandObjectProcessSignal () 1234 { 1235 } 1236 1237 protected: 1238 bool 1239 DoExecute (Args& command, 1240 CommandReturnObject &result) 1241 { 1242 Process *process = m_interpreter.GetExecutionContext().GetProcessPtr(); 1243 if (process == NULL) 1244 { 1245 result.AppendError ("no process to signal"); 1246 result.SetStatus (eReturnStatusFailed); 1247 return false; 1248 } 1249 1250 if (command.GetArgumentCount() == 1) 1251 { 1252 int signo = LLDB_INVALID_SIGNAL_NUMBER; 1253 1254 const char *signal_name = command.GetArgumentAtIndex(0); 1255 if (::isxdigit (signal_name[0])) 1256 signo = Args::StringToSInt32(signal_name, LLDB_INVALID_SIGNAL_NUMBER, 0); 1257 else 1258 signo = process->GetUnixSignals().GetSignalNumberFromName (signal_name); 1259 1260 if (signo == LLDB_INVALID_SIGNAL_NUMBER) 1261 { 1262 result.AppendErrorWithFormat ("Invalid signal argument '%s'.\n", command.GetArgumentAtIndex(0)); 1263 result.SetStatus (eReturnStatusFailed); 1264 } 1265 else 1266 { 1267 Error error (process->Signal (signo)); 1268 if (error.Success()) 1269 { 1270 result.SetStatus (eReturnStatusSuccessFinishResult); 1271 } 1272 else 1273 { 1274 result.AppendErrorWithFormat ("Failed to send signal %i: %s\n", signo, error.AsCString()); 1275 result.SetStatus (eReturnStatusFailed); 1276 } 1277 } 1278 } 1279 else 1280 { 1281 result.AppendErrorWithFormat("'%s' takes exactly one signal number argument:\nUsage: %s\n", m_cmd_name.c_str(), 1282 m_cmd_syntax.c_str()); 1283 result.SetStatus (eReturnStatusFailed); 1284 } 1285 return result.Succeeded(); 1286 } 1287 }; 1288 1289 1290 //------------------------------------------------------------------------- 1291 // CommandObjectProcessInterrupt 1292 //------------------------------------------------------------------------- 1293 #pragma mark CommandObjectProcessInterrupt 1294 1295 class CommandObjectProcessInterrupt : public CommandObjectParsed 1296 { 1297 public: 1298 1299 1300 CommandObjectProcessInterrupt (CommandInterpreter &interpreter) : 1301 CommandObjectParsed (interpreter, 1302 "process interrupt", 1303 "Interrupt the current process being debugged.", 1304 "process interrupt", 1305 eFlagProcessMustBeLaunched) 1306 { 1307 } 1308 1309 ~CommandObjectProcessInterrupt () 1310 { 1311 } 1312 1313 protected: 1314 bool 1315 DoExecute (Args& command, 1316 CommandReturnObject &result) 1317 { 1318 Process *process = m_interpreter.GetExecutionContext().GetProcessPtr(); 1319 if (process == NULL) 1320 { 1321 result.AppendError ("no process to halt"); 1322 result.SetStatus (eReturnStatusFailed); 1323 return false; 1324 } 1325 1326 if (command.GetArgumentCount() == 0) 1327 { 1328 Error error(process->Halt ()); 1329 if (error.Success()) 1330 { 1331 result.SetStatus (eReturnStatusSuccessFinishResult); 1332 1333 // Maybe we should add a "SuspendThreadPlans so we 1334 // can halt, and keep in place all the current thread plans. 1335 process->GetThreadList().DiscardThreadPlans(); 1336 } 1337 else 1338 { 1339 result.AppendErrorWithFormat ("Failed to halt process: %s\n", error.AsCString()); 1340 result.SetStatus (eReturnStatusFailed); 1341 } 1342 } 1343 else 1344 { 1345 result.AppendErrorWithFormat("'%s' takes no arguments:\nUsage: %s\n", 1346 m_cmd_name.c_str(), 1347 m_cmd_syntax.c_str()); 1348 result.SetStatus (eReturnStatusFailed); 1349 } 1350 return result.Succeeded(); 1351 } 1352 }; 1353 1354 //------------------------------------------------------------------------- 1355 // CommandObjectProcessKill 1356 //------------------------------------------------------------------------- 1357 #pragma mark CommandObjectProcessKill 1358 1359 class CommandObjectProcessKill : public CommandObjectParsed 1360 { 1361 public: 1362 1363 CommandObjectProcessKill (CommandInterpreter &interpreter) : 1364 CommandObjectParsed (interpreter, 1365 "process kill", 1366 "Terminate the current process being debugged.", 1367 "process kill", 1368 eFlagProcessMustBeLaunched) 1369 { 1370 } 1371 1372 ~CommandObjectProcessKill () 1373 { 1374 } 1375 1376 protected: 1377 bool 1378 DoExecute (Args& command, 1379 CommandReturnObject &result) 1380 { 1381 Process *process = m_interpreter.GetExecutionContext().GetProcessPtr(); 1382 if (process == NULL) 1383 { 1384 result.AppendError ("no process to kill"); 1385 result.SetStatus (eReturnStatusFailed); 1386 return false; 1387 } 1388 1389 if (command.GetArgumentCount() == 0) 1390 { 1391 Error error (process->Destroy()); 1392 if (error.Success()) 1393 { 1394 result.SetStatus (eReturnStatusSuccessFinishResult); 1395 } 1396 else 1397 { 1398 result.AppendErrorWithFormat ("Failed to kill process: %s\n", error.AsCString()); 1399 result.SetStatus (eReturnStatusFailed); 1400 } 1401 } 1402 else 1403 { 1404 result.AppendErrorWithFormat("'%s' takes no arguments:\nUsage: %s\n", 1405 m_cmd_name.c_str(), 1406 m_cmd_syntax.c_str()); 1407 result.SetStatus (eReturnStatusFailed); 1408 } 1409 return result.Succeeded(); 1410 } 1411 }; 1412 1413 //------------------------------------------------------------------------- 1414 // CommandObjectProcessStatus 1415 //------------------------------------------------------------------------- 1416 #pragma mark CommandObjectProcessStatus 1417 1418 class CommandObjectProcessStatus : public CommandObjectParsed 1419 { 1420 public: 1421 CommandObjectProcessStatus (CommandInterpreter &interpreter) : 1422 CommandObjectParsed (interpreter, 1423 "process status", 1424 "Show the current status and location of executing process.", 1425 "process status", 1426 0) 1427 { 1428 } 1429 1430 ~CommandObjectProcessStatus() 1431 { 1432 } 1433 1434 1435 bool 1436 DoExecute (Args& command, CommandReturnObject &result) 1437 { 1438 Stream &strm = result.GetOutputStream(); 1439 result.SetStatus (eReturnStatusSuccessFinishNoResult); 1440 ExecutionContext exe_ctx(m_interpreter.GetExecutionContext()); 1441 Process *process = exe_ctx.GetProcessPtr(); 1442 if (process) 1443 { 1444 const bool only_threads_with_stop_reason = true; 1445 const uint32_t start_frame = 0; 1446 const uint32_t num_frames = 1; 1447 const uint32_t num_frames_with_source = 1; 1448 process->GetStatus(strm); 1449 process->GetThreadStatus (strm, 1450 only_threads_with_stop_reason, 1451 start_frame, 1452 num_frames, 1453 num_frames_with_source); 1454 1455 } 1456 else 1457 { 1458 result.AppendError ("No process."); 1459 result.SetStatus (eReturnStatusFailed); 1460 } 1461 return result.Succeeded(); 1462 } 1463 }; 1464 1465 //------------------------------------------------------------------------- 1466 // CommandObjectProcessHandle 1467 //------------------------------------------------------------------------- 1468 #pragma mark CommandObjectProcessHandle 1469 1470 class CommandObjectProcessHandle : public CommandObjectParsed 1471 { 1472 public: 1473 1474 class CommandOptions : public Options 1475 { 1476 public: 1477 1478 CommandOptions (CommandInterpreter &interpreter) : 1479 Options (interpreter) 1480 { 1481 OptionParsingStarting (); 1482 } 1483 1484 ~CommandOptions () 1485 { 1486 } 1487 1488 Error 1489 SetOptionValue (uint32_t option_idx, const char *option_arg) 1490 { 1491 Error error; 1492 char short_option = (char) m_getopt_table[option_idx].val; 1493 1494 switch (short_option) 1495 { 1496 case 's': 1497 stop = option_arg; 1498 break; 1499 case 'n': 1500 notify = option_arg; 1501 break; 1502 case 'p': 1503 pass = option_arg; 1504 break; 1505 default: 1506 error.SetErrorStringWithFormat("invalid short option character '%c'", short_option); 1507 break; 1508 } 1509 return error; 1510 } 1511 1512 void 1513 OptionParsingStarting () 1514 { 1515 stop.clear(); 1516 notify.clear(); 1517 pass.clear(); 1518 } 1519 1520 const OptionDefinition* 1521 GetDefinitions () 1522 { 1523 return g_option_table; 1524 } 1525 1526 // Options table: Required for subclasses of Options. 1527 1528 static OptionDefinition g_option_table[]; 1529 1530 // Instance variables to hold the values for command options. 1531 1532 std::string stop; 1533 std::string notify; 1534 std::string pass; 1535 }; 1536 1537 1538 CommandObjectProcessHandle (CommandInterpreter &interpreter) : 1539 CommandObjectParsed (interpreter, 1540 "process handle", 1541 "Show or update what the process and debugger should do with various signals received from the OS.", 1542 NULL), 1543 m_options (interpreter) 1544 { 1545 SetHelpLong ("If no signals are specified, update them all. If no update option is specified, list the current values.\n"); 1546 CommandArgumentEntry arg; 1547 CommandArgumentData signal_arg; 1548 1549 signal_arg.arg_type = eArgTypeUnixSignal; 1550 signal_arg.arg_repetition = eArgRepeatStar; 1551 1552 arg.push_back (signal_arg); 1553 1554 m_arguments.push_back (arg); 1555 } 1556 1557 ~CommandObjectProcessHandle () 1558 { 1559 } 1560 1561 Options * 1562 GetOptions () 1563 { 1564 return &m_options; 1565 } 1566 1567 bool 1568 VerifyCommandOptionValue (const std::string &option, int &real_value) 1569 { 1570 bool okay = true; 1571 1572 bool success = false; 1573 bool tmp_value = Args::StringToBoolean (option.c_str(), false, &success); 1574 1575 if (success && tmp_value) 1576 real_value = 1; 1577 else if (success && !tmp_value) 1578 real_value = 0; 1579 else 1580 { 1581 // If the value isn't 'true' or 'false', it had better be 0 or 1. 1582 real_value = Args::StringToUInt32 (option.c_str(), 3); 1583 if (real_value != 0 && real_value != 1) 1584 okay = false; 1585 } 1586 1587 return okay; 1588 } 1589 1590 void 1591 PrintSignalHeader (Stream &str) 1592 { 1593 str.Printf ("NAME PASS STOP NOTIFY\n"); 1594 str.Printf ("========== ===== ===== ======\n"); 1595 } 1596 1597 void 1598 PrintSignal (Stream &str, int32_t signo, const char *sig_name, UnixSignals &signals) 1599 { 1600 bool stop; 1601 bool suppress; 1602 bool notify; 1603 1604 str.Printf ("%-10s ", sig_name); 1605 if (signals.GetSignalInfo (signo, suppress, stop, notify)) 1606 { 1607 bool pass = !suppress; 1608 str.Printf ("%s %s %s", 1609 (pass ? "true " : "false"), 1610 (stop ? "true " : "false"), 1611 (notify ? "true " : "false")); 1612 } 1613 str.Printf ("\n"); 1614 } 1615 1616 void 1617 PrintSignalInformation (Stream &str, Args &signal_args, int num_valid_signals, UnixSignals &signals) 1618 { 1619 PrintSignalHeader (str); 1620 1621 if (num_valid_signals > 0) 1622 { 1623 size_t num_args = signal_args.GetArgumentCount(); 1624 for (size_t i = 0; i < num_args; ++i) 1625 { 1626 int32_t signo = signals.GetSignalNumberFromName (signal_args.GetArgumentAtIndex (i)); 1627 if (signo != LLDB_INVALID_SIGNAL_NUMBER) 1628 PrintSignal (str, signo, signal_args.GetArgumentAtIndex (i), signals); 1629 } 1630 } 1631 else // Print info for ALL signals 1632 { 1633 int32_t signo = signals.GetFirstSignalNumber(); 1634 while (signo != LLDB_INVALID_SIGNAL_NUMBER) 1635 { 1636 PrintSignal (str, signo, signals.GetSignalAsCString (signo), signals); 1637 signo = signals.GetNextSignalNumber (signo); 1638 } 1639 } 1640 } 1641 1642 protected: 1643 bool 1644 DoExecute (Args &signal_args, CommandReturnObject &result) 1645 { 1646 TargetSP target_sp = m_interpreter.GetDebugger().GetSelectedTarget(); 1647 1648 if (!target_sp) 1649 { 1650 result.AppendError ("No current target;" 1651 " cannot handle signals until you have a valid target and process.\n"); 1652 result.SetStatus (eReturnStatusFailed); 1653 return false; 1654 } 1655 1656 ProcessSP process_sp = target_sp->GetProcessSP(); 1657 1658 if (!process_sp) 1659 { 1660 result.AppendError ("No current process; cannot handle signals until you have a valid process.\n"); 1661 result.SetStatus (eReturnStatusFailed); 1662 return false; 1663 } 1664 1665 int stop_action = -1; // -1 means leave the current setting alone 1666 int pass_action = -1; // -1 means leave the current setting alone 1667 int notify_action = -1; // -1 means leave the current setting alone 1668 1669 if (! m_options.stop.empty() 1670 && ! VerifyCommandOptionValue (m_options.stop, stop_action)) 1671 { 1672 result.AppendError ("Invalid argument for command option --stop; must be true or false.\n"); 1673 result.SetStatus (eReturnStatusFailed); 1674 return false; 1675 } 1676 1677 if (! m_options.notify.empty() 1678 && ! VerifyCommandOptionValue (m_options.notify, notify_action)) 1679 { 1680 result.AppendError ("Invalid argument for command option --notify; must be true or false.\n"); 1681 result.SetStatus (eReturnStatusFailed); 1682 return false; 1683 } 1684 1685 if (! m_options.pass.empty() 1686 && ! VerifyCommandOptionValue (m_options.pass, pass_action)) 1687 { 1688 result.AppendError ("Invalid argument for command option --pass; must be true or false.\n"); 1689 result.SetStatus (eReturnStatusFailed); 1690 return false; 1691 } 1692 1693 size_t num_args = signal_args.GetArgumentCount(); 1694 UnixSignals &signals = process_sp->GetUnixSignals(); 1695 int num_signals_set = 0; 1696 1697 if (num_args > 0) 1698 { 1699 for (size_t i = 0; i < num_args; ++i) 1700 { 1701 int32_t signo = signals.GetSignalNumberFromName (signal_args.GetArgumentAtIndex (i)); 1702 if (signo != LLDB_INVALID_SIGNAL_NUMBER) 1703 { 1704 // Casting the actions as bools here should be okay, because VerifyCommandOptionValue guarantees 1705 // the value is either 0 or 1. 1706 if (stop_action != -1) 1707 signals.SetShouldStop (signo, (bool) stop_action); 1708 if (pass_action != -1) 1709 { 1710 bool suppress = ! ((bool) pass_action); 1711 signals.SetShouldSuppress (signo, suppress); 1712 } 1713 if (notify_action != -1) 1714 signals.SetShouldNotify (signo, (bool) notify_action); 1715 ++num_signals_set; 1716 } 1717 else 1718 { 1719 result.AppendErrorWithFormat ("Invalid signal name '%s'\n", signal_args.GetArgumentAtIndex (i)); 1720 } 1721 } 1722 } 1723 else 1724 { 1725 // No signal specified, if any command options were specified, update ALL signals. 1726 if ((notify_action != -1) || (stop_action != -1) || (pass_action != -1)) 1727 { 1728 if (m_interpreter.Confirm ("Do you really want to update all the signals?", false)) 1729 { 1730 int32_t signo = signals.GetFirstSignalNumber(); 1731 while (signo != LLDB_INVALID_SIGNAL_NUMBER) 1732 { 1733 if (notify_action != -1) 1734 signals.SetShouldNotify (signo, (bool) notify_action); 1735 if (stop_action != -1) 1736 signals.SetShouldStop (signo, (bool) stop_action); 1737 if (pass_action != -1) 1738 { 1739 bool suppress = ! ((bool) pass_action); 1740 signals.SetShouldSuppress (signo, suppress); 1741 } 1742 signo = signals.GetNextSignalNumber (signo); 1743 } 1744 } 1745 } 1746 } 1747 1748 PrintSignalInformation (result.GetOutputStream(), signal_args, num_signals_set, signals); 1749 1750 if (num_signals_set > 0) 1751 result.SetStatus (eReturnStatusSuccessFinishNoResult); 1752 else 1753 result.SetStatus (eReturnStatusFailed); 1754 1755 return result.Succeeded(); 1756 } 1757 1758 CommandOptions m_options; 1759 }; 1760 1761 OptionDefinition 1762 CommandObjectProcessHandle::CommandOptions::g_option_table[] = 1763 { 1764 { 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." }, 1765 { 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." }, 1766 { LLDB_OPT_SET_1, false, "pass", 'p', required_argument, NULL, 0, eArgTypeBoolean, "Whether or not the signal should be passed to the process." }, 1767 { 0, false, NULL, 0, 0, NULL, 0, eArgTypeNone, NULL } 1768 }; 1769 1770 //------------------------------------------------------------------------- 1771 // CommandObjectMultiwordProcess 1772 //------------------------------------------------------------------------- 1773 1774 CommandObjectMultiwordProcess::CommandObjectMultiwordProcess (CommandInterpreter &interpreter) : 1775 CommandObjectMultiword (interpreter, 1776 "process", 1777 "A set of commands for operating on a process.", 1778 "process <subcommand> [<subcommand-options>]") 1779 { 1780 LoadSubCommand ("attach", CommandObjectSP (new CommandObjectProcessAttach (interpreter))); 1781 LoadSubCommand ("launch", CommandObjectSP (new CommandObjectProcessLaunch (interpreter))); 1782 LoadSubCommand ("continue", CommandObjectSP (new CommandObjectProcessContinue (interpreter))); 1783 LoadSubCommand ("connect", CommandObjectSP (new CommandObjectProcessConnect (interpreter))); 1784 LoadSubCommand ("detach", CommandObjectSP (new CommandObjectProcessDetach (interpreter))); 1785 LoadSubCommand ("load", CommandObjectSP (new CommandObjectProcessLoad (interpreter))); 1786 LoadSubCommand ("unload", CommandObjectSP (new CommandObjectProcessUnload (interpreter))); 1787 LoadSubCommand ("signal", CommandObjectSP (new CommandObjectProcessSignal (interpreter))); 1788 LoadSubCommand ("handle", CommandObjectSP (new CommandObjectProcessHandle (interpreter))); 1789 LoadSubCommand ("status", CommandObjectSP (new CommandObjectProcessStatus (interpreter))); 1790 LoadSubCommand ("interrupt", CommandObjectSP (new CommandObjectProcessInterrupt (interpreter))); 1791 LoadSubCommand ("kill", CommandObjectSP (new CommandObjectProcessKill (interpreter))); 1792 } 1793 1794 CommandObjectMultiwordProcess::~CommandObjectMultiwordProcess () 1795 { 1796 } 1797 1798