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/Core/Module.h" 21 #include "lldb/Host/Host.h" 22 #include "lldb/Interpreter/Args.h" 23 #include "lldb/Interpreter/Options.h" 24 #include "lldb/Interpreter/CommandInterpreter.h" 25 #include "lldb/Interpreter/CommandReturnObject.h" 26 #include "lldb/Target/Platform.h" 27 #include "lldb/Target/Process.h" 28 #include "lldb/Target/StopInfo.h" 29 #include "lldb/Target/Target.h" 30 #include "lldb/Target/Thread.h" 31 32 using namespace lldb; 33 using namespace lldb_private; 34 35 //------------------------------------------------------------------------- 36 // CommandObjectProcessLaunch 37 //------------------------------------------------------------------------- 38 #pragma mark CommandObjectProcessLaunch 39 class CommandObjectProcessLaunch : public CommandObjectParsed 40 { 41 public: 42 43 CommandObjectProcessLaunch (CommandInterpreter &interpreter) : 44 CommandObjectParsed (interpreter, 45 "process launch", 46 "Launch the executable in the debugger.", 47 NULL), 48 m_options (interpreter) 49 { 50 CommandArgumentEntry arg; 51 CommandArgumentData run_args_arg; 52 53 // Define the first (and only) variant of this arg. 54 run_args_arg.arg_type = eArgTypeRunArgs; 55 run_args_arg.arg_repetition = eArgRepeatOptional; 56 57 // There is only one variant this argument could be; put it into the argument entry. 58 arg.push_back (run_args_arg); 59 60 // Push the data for the first argument into the m_arguments vector. 61 m_arguments.push_back (arg); 62 } 63 64 65 ~CommandObjectProcessLaunch () 66 { 67 } 68 69 int 70 HandleArgumentCompletion (Args &input, 71 int &cursor_index, 72 int &cursor_char_position, 73 OptionElementVector &opt_element_vector, 74 int match_start_point, 75 int max_return_elements, 76 bool &word_complete, 77 StringList &matches) 78 { 79 std::string completion_str (input.GetArgumentAtIndex(cursor_index)); 80 completion_str.erase (cursor_char_position); 81 82 CommandCompletions::InvokeCommonCompletionCallbacks (m_interpreter, 83 CommandCompletions::eDiskFileCompletion, 84 completion_str.c_str(), 85 match_start_point, 86 max_return_elements, 87 NULL, 88 word_complete, 89 matches); 90 return matches.GetSize(); 91 } 92 93 Options * 94 GetOptions () 95 { 96 return &m_options; 97 } 98 99 virtual const char *GetRepeatCommand (Args ¤t_command_args, uint32_t index) 100 { 101 // No repeat for "process launch"... 102 return ""; 103 } 104 105 protected: 106 bool 107 DoExecute (Args& launch_args, CommandReturnObject &result) 108 { 109 Debugger &debugger = m_interpreter.GetDebugger(); 110 Target *target = debugger.GetSelectedTarget().get(); 111 Error error; 112 113 if (target == NULL) 114 { 115 result.AppendError ("invalid target, create a debug target using the 'target create' command"); 116 result.SetStatus (eReturnStatusFailed); 117 return false; 118 } 119 // If our listener is NULL, users aren't allows to launch 120 char filename[PATH_MAX]; 121 const Module *exe_module = target->GetExecutableModulePointer(); 122 123 if (exe_module == NULL) 124 { 125 result.AppendError ("no file in target, create a debug target using the 'target create' command"); 126 result.SetStatus (eReturnStatusFailed); 127 return false; 128 } 129 130 exe_module->GetFileSpec().GetPath (filename, sizeof(filename)); 131 132 const bool add_exe_file_as_first_arg = true; 133 m_options.launch_info.SetExecutableFile(exe_module->GetPlatformFileSpec(), add_exe_file_as_first_arg); 134 135 StateType state = eStateInvalid; 136 Process *process = m_interpreter.GetExecutionContext().GetProcessPtr(); 137 if (process) 138 { 139 state = process->GetState(); 140 141 if (process->IsAlive() && state != eStateConnected) 142 { 143 char message[1024]; 144 if (process->GetState() == eStateAttaching) 145 ::strncpy (message, "There is a pending attach, abort it and launch a new process?", sizeof(message)); 146 else 147 ::strncpy (message, "There is a running process, kill it and restart?", sizeof(message)); 148 149 if (!m_interpreter.Confirm (message, true)) 150 { 151 result.SetStatus (eReturnStatusFailed); 152 return false; 153 } 154 else 155 { 156 Error destroy_error (process->Destroy()); 157 if (destroy_error.Success()) 158 { 159 result.SetStatus (eReturnStatusSuccessFinishResult); 160 } 161 else 162 { 163 result.AppendErrorWithFormat ("Failed to kill process: %s\n", destroy_error.AsCString()); 164 result.SetStatus (eReturnStatusFailed); 165 } 166 } 167 } 168 } 169 170 if (launch_args.GetArgumentCount() == 0) 171 { 172 Args target_setting_args; 173 if (target->GetRunArguments(target_setting_args) > 0) 174 m_options.launch_info.GetArguments().AppendArguments (target_setting_args); 175 } 176 else 177 { 178 // Save the arguments for subsequent runs in the current target. 179 target->SetRunArguments (launch_args); 180 181 m_options.launch_info.GetArguments().AppendArguments (launch_args); 182 } 183 184 if (target->GetDisableASLR()) 185 m_options.launch_info.GetFlags().Set (eLaunchFlagDisableASLR); 186 187 if (target->GetDisableSTDIO()) 188 m_options.launch_info.GetFlags().Set (eLaunchFlagDisableSTDIO); 189 190 m_options.launch_info.GetFlags().Set (eLaunchFlagDebug); 191 192 Args environment; 193 target->GetEnvironmentAsArgs (environment); 194 if (environment.GetArgumentCount() > 0) 195 m_options.launch_info.GetEnvironmentEntries ().AppendArguments (environment); 196 197 // Finalize the file actions, and if none were given, default to opening 198 // up a pseudo terminal 199 const bool default_to_use_pty = true; 200 m_options.launch_info.FinalizeFileActions (target, default_to_use_pty); 201 202 if (state == eStateConnected) 203 { 204 if (m_options.launch_info.GetFlags().Test (eLaunchFlagLaunchInTTY)) 205 { 206 result.AppendWarning("can't launch in tty when launching through a remote connection"); 207 m_options.launch_info.GetFlags().Clear (eLaunchFlagLaunchInTTY); 208 } 209 } 210 else 211 { 212 if (!m_options.launch_info.GetArchitecture().IsValid()) 213 m_options.launch_info.GetArchitecture() = target->GetArchitecture(); 214 215 PlatformSP platform_sp (target->GetPlatform()); 216 217 if (platform_sp && platform_sp->CanDebugProcess ()) 218 { 219 process = target->GetPlatform()->DebugProcess (m_options.launch_info, 220 debugger, 221 target, 222 debugger.GetListener(), 223 error).get(); 224 } 225 else 226 { 227 const char *plugin_name = m_options.launch_info.GetProcessPluginName(); 228 process = target->CreateProcess (debugger.GetListener(), plugin_name, NULL).get(); 229 if (process) 230 error = process->Launch (m_options.launch_info); 231 } 232 233 if (process == NULL) 234 { 235 result.SetError (error, "failed to launch or debug process"); 236 return false; 237 } 238 } 239 240 if (error.Success()) 241 { 242 const char *archname = exe_module->GetArchitecture().GetArchitectureName(); 243 244 result.AppendMessageWithFormat ("Process %llu launched: '%s' (%s)\n", process->GetID(), filename, archname); 245 result.SetDidChangeProcessState (true); 246 if (m_options.launch_info.GetFlags().Test(eLaunchFlagStopAtEntry) == false) 247 { 248 result.SetStatus (eReturnStatusSuccessContinuingNoResult); 249 StateType state = process->WaitForProcessToStop (NULL); 250 251 if (state == eStateStopped) 252 { 253 error = process->Resume(); 254 if (error.Success()) 255 { 256 bool synchronous_execution = m_interpreter.GetSynchronous (); 257 if (synchronous_execution) 258 { 259 state = process->WaitForProcessToStop (NULL); 260 const bool must_be_alive = true; 261 if (!StateIsStoppedState(state, must_be_alive)) 262 { 263 result.AppendErrorWithFormat ("process isn't stopped: %s", StateAsCString(state)); 264 } 265 result.SetDidChangeProcessState (true); 266 result.SetStatus (eReturnStatusSuccessFinishResult); 267 } 268 else 269 { 270 result.SetStatus (eReturnStatusSuccessContinuingNoResult); 271 } 272 } 273 else 274 { 275 result.AppendErrorWithFormat ("process resume at entry point failed: %s", error.AsCString()); 276 result.SetStatus (eReturnStatusFailed); 277 } 278 } 279 else 280 { 281 result.AppendErrorWithFormat ("initial process state wasn't stopped: %s", StateAsCString(state)); 282 result.SetStatus (eReturnStatusFailed); 283 } 284 } 285 } 286 else 287 { 288 result.AppendErrorWithFormat ("process launch failed: %s", error.AsCString()); 289 result.SetStatus (eReturnStatusFailed); 290 } 291 292 return result.Succeeded(); 293 } 294 295 protected: 296 ProcessLaunchCommandOptions m_options; 297 }; 298 299 300 //#define SET1 LLDB_OPT_SET_1 301 //#define SET2 LLDB_OPT_SET_2 302 //#define SET3 LLDB_OPT_SET_3 303 // 304 //OptionDefinition 305 //CommandObjectProcessLaunch::CommandOptions::g_option_table[] = 306 //{ 307 //{ 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."}, 308 //{ SET1 , false, "stdin", 'i', required_argument, NULL, 0, eArgTypePath, "Redirect stdin for the process to <path>."}, 309 //{ SET1 , false, "stdout", 'o', required_argument, NULL, 0, eArgTypePath, "Redirect stdout for the process to <path>."}, 310 //{ SET1 , false, "stderr", 'e', required_argument, NULL, 0, eArgTypePath, "Redirect stderr for the process to <path>."}, 311 //{ SET1 | SET2 | SET3, false, "plugin", 'p', required_argument, NULL, 0, eArgTypePlugin, "Name of the process plugin you want to use."}, 312 //{ 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."}, 313 //{ SET3, false, "no-stdio", 'n', no_argument, NULL, 0, eArgTypeNone, "Do not set up for terminal I/O to go to running process."}, 314 //{ SET1 | SET2 | SET3, false, "working-dir", 'w', required_argument, NULL, 0, eArgTypePath, "Set the current working directory to <path> when running the inferior."}, 315 //{ 0, false, NULL, 0, 0, NULL, 0, eArgTypeNone, NULL } 316 //}; 317 // 318 //#undef SET1 319 //#undef SET2 320 //#undef SET3 321 322 //------------------------------------------------------------------------- 323 // CommandObjectProcessAttach 324 //------------------------------------------------------------------------- 325 #pragma mark CommandObjectProcessAttach 326 class CommandObjectProcessAttach : public CommandObjectParsed 327 { 328 public: 329 330 class CommandOptions : public Options 331 { 332 public: 333 334 CommandOptions (CommandInterpreter &interpreter) : 335 Options(interpreter) 336 { 337 // Keep default values of all options in one place: OptionParsingStarting () 338 OptionParsingStarting (); 339 } 340 341 ~CommandOptions () 342 { 343 } 344 345 Error 346 SetOptionValue (uint32_t option_idx, const char *option_arg) 347 { 348 Error error; 349 char short_option = (char) m_getopt_table[option_idx].val; 350 bool success = false; 351 switch (short_option) 352 { 353 case 'c': 354 attach_info.SetContinueOnceAttached(true); 355 break; 356 357 case 'p': 358 { 359 lldb::pid_t pid = Args::StringToUInt32 (option_arg, LLDB_INVALID_PROCESS_ID, 0, &success); 360 if (!success || pid == LLDB_INVALID_PROCESS_ID) 361 { 362 error.SetErrorStringWithFormat("invalid process ID '%s'", option_arg); 363 } 364 else 365 { 366 attach_info.SetProcessID (pid); 367 } 368 } 369 break; 370 371 case 'P': 372 attach_info.SetProcessPluginName (option_arg); 373 break; 374 375 case 'n': 376 attach_info.GetExecutableFile().SetFile(option_arg, false); 377 break; 378 379 case 'w': 380 attach_info.SetWaitForLaunch(true); 381 break; 382 383 case 'i': 384 attach_info.SetIgnoreExisting(false); 385 break; 386 387 default: 388 error.SetErrorStringWithFormat("invalid short option character '%c'", short_option); 389 break; 390 } 391 return error; 392 } 393 394 void 395 OptionParsingStarting () 396 { 397 attach_info.Clear(); 398 } 399 400 const OptionDefinition* 401 GetDefinitions () 402 { 403 return g_option_table; 404 } 405 406 virtual bool 407 HandleOptionArgumentCompletion (Args &input, 408 int cursor_index, 409 int char_pos, 410 OptionElementVector &opt_element_vector, 411 int opt_element_index, 412 int match_start_point, 413 int max_return_elements, 414 bool &word_complete, 415 StringList &matches) 416 { 417 int opt_arg_pos = opt_element_vector[opt_element_index].opt_arg_pos; 418 int opt_defs_index = opt_element_vector[opt_element_index].opt_defs_index; 419 420 // We are only completing the name option for now... 421 422 const OptionDefinition *opt_defs = GetDefinitions(); 423 if (opt_defs[opt_defs_index].short_option == 'n') 424 { 425 // Are we in the name? 426 427 // Look to see if there is a -P argument provided, and if so use that plugin, otherwise 428 // use the default plugin. 429 430 const char *partial_name = NULL; 431 partial_name = input.GetArgumentAtIndex(opt_arg_pos); 432 433 PlatformSP platform_sp (m_interpreter.GetPlatform (true)); 434 if (platform_sp) 435 { 436 ProcessInstanceInfoList process_infos; 437 ProcessInstanceInfoMatch match_info; 438 if (partial_name) 439 { 440 match_info.GetProcessInfo().GetExecutableFile().SetFile(partial_name, false); 441 match_info.SetNameMatchType(eNameMatchStartsWith); 442 } 443 platform_sp->FindProcesses (match_info, process_infos); 444 const uint32_t num_matches = process_infos.GetSize(); 445 if (num_matches > 0) 446 { 447 for (uint32_t i=0; i<num_matches; ++i) 448 { 449 matches.AppendString (process_infos.GetProcessNameAtIndex(i), 450 process_infos.GetProcessNameLengthAtIndex(i)); 451 } 452 } 453 } 454 } 455 456 return false; 457 } 458 459 // Options table: Required for subclasses of Options. 460 461 static OptionDefinition g_option_table[]; 462 463 // Instance variables to hold the values for command options. 464 465 ProcessAttachInfo attach_info; 466 }; 467 468 CommandObjectProcessAttach (CommandInterpreter &interpreter) : 469 CommandObjectParsed (interpreter, 470 "process attach", 471 "Attach to a process.", 472 "process attach <cmd-options>"), 473 m_options (interpreter) 474 { 475 } 476 477 ~CommandObjectProcessAttach () 478 { 479 } 480 481 Options * 482 GetOptions () 483 { 484 return &m_options; 485 } 486 487 protected: 488 bool 489 DoExecute (Args& command, 490 CommandReturnObject &result) 491 { 492 Target *target = m_interpreter.GetDebugger().GetSelectedTarget().get(); 493 // N.B. The attach should be synchronous. It doesn't help much to get the prompt back between initiating the attach 494 // and the target actually stopping. So even if the interpreter is set to be asynchronous, we wait for the stop 495 // ourselves here. 496 497 Process *process = m_interpreter.GetExecutionContext().GetProcessPtr(); 498 StateType state = eStateInvalid; 499 if (process) 500 { 501 state = process->GetState(); 502 if (process->IsAlive() && state != eStateConnected) 503 { 504 result.AppendErrorWithFormat ("Process %llu is currently being debugged, kill the process before attaching.\n", 505 process->GetID()); 506 result.SetStatus (eReturnStatusFailed); 507 return false; 508 } 509 } 510 511 if (target == NULL) 512 { 513 // If there isn't a current target create one. 514 TargetSP new_target_sp; 515 FileSpec emptyFileSpec; 516 Error error; 517 518 error = m_interpreter.GetDebugger().GetTargetList().CreateTarget (m_interpreter.GetDebugger(), 519 emptyFileSpec, 520 NULL, 521 false, 522 NULL, // No platform options 523 new_target_sp); 524 target = new_target_sp.get(); 525 if (target == NULL || error.Fail()) 526 { 527 result.AppendError(error.AsCString("Error creating target")); 528 return false; 529 } 530 m_interpreter.GetDebugger().GetTargetList().SetSelectedTarget(target); 531 } 532 533 // Record the old executable module, we want to issue a warning if the process of attaching changed the 534 // current executable (like somebody said "file foo" then attached to a PID whose executable was bar.) 535 536 ModuleSP old_exec_module_sp = target->GetExecutableModule(); 537 ArchSpec old_arch_spec = target->GetArchitecture(); 538 539 if (command.GetArgumentCount()) 540 { 541 result.AppendErrorWithFormat("Invalid arguments for '%s'.\nUsage: %s\n", m_cmd_name.c_str(), m_cmd_syntax.c_str()); 542 result.SetStatus (eReturnStatusFailed); 543 } 544 else 545 { 546 if (state != eStateConnected) 547 { 548 const char *plugin_name = m_options.attach_info.GetProcessPluginName(); 549 process = target->CreateProcess (m_interpreter.GetDebugger().GetListener(), plugin_name, NULL).get(); 550 } 551 552 if (process) 553 { 554 Error error; 555 // If no process info was specified, then use the target executable 556 // name as the process to attach to by default 557 if (!m_options.attach_info.ProcessInfoSpecified ()) 558 { 559 if (old_exec_module_sp) 560 m_options.attach_info.GetExecutableFile().GetFilename() = old_exec_module_sp->GetPlatformFileSpec().GetFilename(); 561 562 if (!m_options.attach_info.ProcessInfoSpecified ()) 563 { 564 error.SetErrorString ("no process specified, create a target with a file, or specify the --pid or --name command option"); 565 } 566 } 567 568 if (error.Success()) 569 { 570 error = process->Attach (m_options.attach_info); 571 572 if (error.Success()) 573 { 574 result.SetStatus (eReturnStatusSuccessContinuingNoResult); 575 } 576 else 577 { 578 result.AppendErrorWithFormat ("attach failed: %s\n", error.AsCString()); 579 result.SetStatus (eReturnStatusFailed); 580 return false; 581 } 582 // If we're synchronous, wait for the stopped event and report that. 583 // Otherwise just return. 584 // FIXME: in the async case it will now be possible to get to the command 585 // interpreter with a state eStateAttaching. Make sure we handle that correctly. 586 StateType state = process->WaitForProcessToStop (NULL); 587 588 result.SetDidChangeProcessState (true); 589 590 if (state == eStateStopped) 591 { 592 result.AppendMessageWithFormat ("Process %llu %s\n", process->GetID(), StateAsCString (state)); 593 result.SetStatus (eReturnStatusSuccessFinishNoResult); 594 } 595 else 596 { 597 result.AppendError ("attach failed: process did not stop (no such process or permission problem?)"); 598 process->Destroy(); 599 result.SetStatus (eReturnStatusFailed); 600 return false; 601 } 602 } 603 } 604 } 605 606 if (result.Succeeded()) 607 { 608 // Okay, we're done. Last step is to warn if the executable module has changed: 609 char new_path[PATH_MAX]; 610 ModuleSP new_exec_module_sp (target->GetExecutableModule()); 611 if (!old_exec_module_sp) 612 { 613 // We might not have a module if we attached to a raw pid... 614 if (new_exec_module_sp) 615 { 616 new_exec_module_sp->GetFileSpec().GetPath(new_path, PATH_MAX); 617 result.AppendMessageWithFormat("Executable module set to \"%s\".\n", new_path); 618 } 619 } 620 else if (old_exec_module_sp->GetFileSpec() != new_exec_module_sp->GetFileSpec()) 621 { 622 char old_path[PATH_MAX]; 623 624 old_exec_module_sp->GetFileSpec().GetPath (old_path, PATH_MAX); 625 new_exec_module_sp->GetFileSpec().GetPath (new_path, PATH_MAX); 626 627 result.AppendWarningWithFormat("Executable module changed from \"%s\" to \"%s\".\n", 628 old_path, new_path); 629 } 630 631 if (!old_arch_spec.IsValid()) 632 { 633 result.AppendMessageWithFormat ("Architecture set to: %s.\n", target->GetArchitecture().GetArchitectureName()); 634 } 635 else if (old_arch_spec != target->GetArchitecture()) 636 { 637 result.AppendWarningWithFormat("Architecture changed from %s to %s.\n", 638 old_arch_spec.GetArchitectureName(), target->GetArchitecture().GetArchitectureName()); 639 } 640 641 // This supports the use-case scenario of immediately continuing the process once attached. 642 if (m_options.attach_info.GetContinueOnceAttached()) 643 m_interpreter.HandleCommand("process continue", eLazyBoolNo, result); 644 } 645 return result.Succeeded(); 646 } 647 648 CommandOptions m_options; 649 }; 650 651 652 OptionDefinition 653 CommandObjectProcessAttach::CommandOptions::g_option_table[] = 654 { 655 { LLDB_OPT_SET_ALL, false, "continue",'c', no_argument, NULL, 0, eArgTypeNone, "Immediately continue the process once attached."}, 656 { LLDB_OPT_SET_ALL, false, "plugin", 'P', required_argument, NULL, 0, eArgTypePlugin, "Name of the process plugin you want to use."}, 657 { LLDB_OPT_SET_1, false, "pid", 'p', required_argument, NULL, 0, eArgTypePid, "The process ID of an existing process to attach to."}, 658 { LLDB_OPT_SET_2, false, "name", 'n', required_argument, NULL, 0, eArgTypeProcessName, "The name of the process to attach to."}, 659 { LLDB_OPT_SET_2, false, "include-existing", 'i', no_argument, NULL, 0, eArgTypeNone, "Include existing processes when doing attach -w."}, 660 { LLDB_OPT_SET_2, false, "waitfor", 'w', no_argument, NULL, 0, eArgTypeNone, "Wait for the process with <process-name> to launch."}, 661 { 0, false, NULL, 0, 0, NULL, 0, eArgTypeNone, NULL } 662 }; 663 664 //------------------------------------------------------------------------- 665 // CommandObjectProcessContinue 666 //------------------------------------------------------------------------- 667 #pragma mark CommandObjectProcessContinue 668 669 class CommandObjectProcessContinue : public CommandObjectParsed 670 { 671 public: 672 673 CommandObjectProcessContinue (CommandInterpreter &interpreter) : 674 CommandObjectParsed (interpreter, 675 "process continue", 676 "Continue execution of all threads in the current process.", 677 "process continue", 678 eFlagProcessMustBeLaunched | eFlagProcessMustBePaused), 679 m_options(interpreter) 680 { 681 } 682 683 684 ~CommandObjectProcessContinue () 685 { 686 } 687 688 protected: 689 690 class CommandOptions : public Options 691 { 692 public: 693 694 CommandOptions (CommandInterpreter &interpreter) : 695 Options(interpreter) 696 { 697 // Keep default values of all options in one place: OptionParsingStarting () 698 OptionParsingStarting (); 699 } 700 701 ~CommandOptions () 702 { 703 } 704 705 Error 706 SetOptionValue (uint32_t option_idx, const char *option_arg) 707 { 708 Error error; 709 char short_option = (char) m_getopt_table[option_idx].val; 710 bool success = false; 711 switch (short_option) 712 { 713 case 'i': 714 m_ignore = Args::StringToUInt32 (option_arg, 0, 0, &success); 715 if (!success) 716 error.SetErrorStringWithFormat ("invalid value for ignore option: \"%s\", should be a number.", option_arg); 717 break; 718 719 default: 720 error.SetErrorStringWithFormat("invalid short option character '%c'", short_option); 721 break; 722 } 723 return error; 724 } 725 726 void 727 OptionParsingStarting () 728 { 729 m_ignore = 0; 730 } 731 732 const OptionDefinition* 733 GetDefinitions () 734 { 735 return g_option_table; 736 } 737 738 // Options table: Required for subclasses of Options. 739 740 static OptionDefinition g_option_table[]; 741 742 uint32_t m_ignore; 743 }; 744 745 bool 746 DoExecute (Args& command, 747 CommandReturnObject &result) 748 { 749 Process *process = m_interpreter.GetExecutionContext().GetProcessPtr(); 750 bool synchronous_execution = m_interpreter.GetSynchronous (); 751 752 if (process == NULL) 753 { 754 result.AppendError ("no process to continue"); 755 result.SetStatus (eReturnStatusFailed); 756 return false; 757 } 758 759 StateType state = process->GetState(); 760 if (state == eStateStopped) 761 { 762 if (command.GetArgumentCount() != 0) 763 { 764 result.AppendErrorWithFormat ("The '%s' command does not take any arguments.\n", m_cmd_name.c_str()); 765 result.SetStatus (eReturnStatusFailed); 766 return false; 767 } 768 769 if (m_options.m_ignore > 0) 770 { 771 ThreadSP sel_thread_sp(process->GetThreadList().GetSelectedThread()); 772 if (sel_thread_sp) 773 { 774 StopInfoSP stop_info_sp = sel_thread_sp->GetStopInfo(); 775 if (stop_info_sp && stop_info_sp->GetStopReason() == eStopReasonBreakpoint) 776 { 777 uint64_t bp_site_id = stop_info_sp->GetValue(); 778 BreakpointSiteSP bp_site_sp(process->GetBreakpointSiteList().FindByID(bp_site_id)); 779 if (bp_site_sp) 780 { 781 uint32_t num_owners = bp_site_sp->GetNumberOfOwners(); 782 for (uint32_t i = 0; i < num_owners; i++) 783 { 784 Breakpoint &bp_ref = bp_site_sp->GetOwnerAtIndex(i)->GetBreakpoint(); 785 if (!bp_ref.IsInternal()) 786 { 787 bp_ref.SetIgnoreCount(m_options.m_ignore); 788 } 789 } 790 } 791 } 792 } 793 } 794 795 const uint32_t num_threads = process->GetThreadList().GetSize(); 796 797 // Set the actions that the threads should each take when resuming 798 for (uint32_t idx=0; idx<num_threads; ++idx) 799 { 800 process->GetThreadList().GetThreadAtIndex(idx)->SetResumeState (eStateRunning); 801 } 802 803 Error error(process->Resume()); 804 if (error.Success()) 805 { 806 result.AppendMessageWithFormat ("Process %llu resuming\n", process->GetID()); 807 if (synchronous_execution) 808 { 809 state = process->WaitForProcessToStop (NULL); 810 811 result.SetDidChangeProcessState (true); 812 result.AppendMessageWithFormat ("Process %llu %s\n", process->GetID(), StateAsCString (state)); 813 result.SetStatus (eReturnStatusSuccessFinishNoResult); 814 } 815 else 816 { 817 result.SetStatus (eReturnStatusSuccessContinuingNoResult); 818 } 819 } 820 else 821 { 822 result.AppendErrorWithFormat("Failed to resume process: %s.\n", error.AsCString()); 823 result.SetStatus (eReturnStatusFailed); 824 } 825 } 826 else 827 { 828 result.AppendErrorWithFormat ("Process cannot be continued from its current state (%s).\n", 829 StateAsCString(state)); 830 result.SetStatus (eReturnStatusFailed); 831 } 832 return result.Succeeded(); 833 } 834 835 Options * 836 GetOptions () 837 { 838 return &m_options; 839 } 840 841 CommandOptions m_options; 842 843 }; 844 845 OptionDefinition 846 CommandObjectProcessContinue::CommandOptions::g_option_table[] = 847 { 848 { LLDB_OPT_SET_ALL, false, "ignore-count",'i', required_argument, NULL, 0, eArgTypeUnsignedInteger, 849 "Ignore <N> crossings of the breakpoint (if it exists) for the currently selected thread."}, 850 { 0, false, NULL, 0, 0, NULL, 0, eArgTypeNone, NULL } 851 }; 852 853 //------------------------------------------------------------------------- 854 // CommandObjectProcessDetach 855 //------------------------------------------------------------------------- 856 #pragma mark CommandObjectProcessDetach 857 858 class CommandObjectProcessDetach : public CommandObjectParsed 859 { 860 public: 861 862 CommandObjectProcessDetach (CommandInterpreter &interpreter) : 863 CommandObjectParsed (interpreter, 864 "process detach", 865 "Detach from the current process being debugged.", 866 "process detach", 867 eFlagProcessMustBeLaunched) 868 { 869 } 870 871 ~CommandObjectProcessDetach () 872 { 873 } 874 875 protected: 876 bool 877 DoExecute (Args& command, 878 CommandReturnObject &result) 879 { 880 Process *process = m_interpreter.GetExecutionContext().GetProcessPtr(); 881 if (process == NULL) 882 { 883 result.AppendError ("must have a valid process in order to detach"); 884 result.SetStatus (eReturnStatusFailed); 885 return false; 886 } 887 888 result.AppendMessageWithFormat ("Detaching from process %llu\n", process->GetID()); 889 Error error (process->Detach()); 890 if (error.Success()) 891 { 892 result.SetStatus (eReturnStatusSuccessFinishResult); 893 } 894 else 895 { 896 result.AppendErrorWithFormat ("Detach failed: %s\n", error.AsCString()); 897 result.SetStatus (eReturnStatusFailed); 898 return false; 899 } 900 return result.Succeeded(); 901 } 902 }; 903 904 //------------------------------------------------------------------------- 905 // CommandObjectProcessConnect 906 //------------------------------------------------------------------------- 907 #pragma mark CommandObjectProcessConnect 908 909 class CommandObjectProcessConnect : public CommandObjectParsed 910 { 911 public: 912 913 class CommandOptions : public Options 914 { 915 public: 916 917 CommandOptions (CommandInterpreter &interpreter) : 918 Options(interpreter) 919 { 920 // Keep default values of all options in one place: OptionParsingStarting () 921 OptionParsingStarting (); 922 } 923 924 ~CommandOptions () 925 { 926 } 927 928 Error 929 SetOptionValue (uint32_t option_idx, const char *option_arg) 930 { 931 Error error; 932 char short_option = (char) m_getopt_table[option_idx].val; 933 934 switch (short_option) 935 { 936 case 'p': 937 plugin_name.assign (option_arg); 938 break; 939 940 default: 941 error.SetErrorStringWithFormat("invalid short option character '%c'", short_option); 942 break; 943 } 944 return error; 945 } 946 947 void 948 OptionParsingStarting () 949 { 950 plugin_name.clear(); 951 } 952 953 const OptionDefinition* 954 GetDefinitions () 955 { 956 return g_option_table; 957 } 958 959 // Options table: Required for subclasses of Options. 960 961 static OptionDefinition g_option_table[]; 962 963 // Instance variables to hold the values for command options. 964 965 std::string plugin_name; 966 }; 967 968 CommandObjectProcessConnect (CommandInterpreter &interpreter) : 969 CommandObjectParsed (interpreter, 970 "process connect", 971 "Connect to a remote debug service.", 972 "process connect <remote-url>", 973 0), 974 m_options (interpreter) 975 { 976 } 977 978 ~CommandObjectProcessConnect () 979 { 980 } 981 982 983 Options * 984 GetOptions () 985 { 986 return &m_options; 987 } 988 989 protected: 990 bool 991 DoExecute (Args& command, 992 CommandReturnObject &result) 993 { 994 995 TargetSP target_sp (m_interpreter.GetDebugger().GetSelectedTarget()); 996 Error error; 997 Process *process = m_interpreter.GetExecutionContext().GetProcessPtr(); 998 if (process) 999 { 1000 if (process->IsAlive()) 1001 { 1002 result.AppendErrorWithFormat ("Process %llu is currently being debugged, kill the process before connecting.\n", 1003 process->GetID()); 1004 result.SetStatus (eReturnStatusFailed); 1005 return false; 1006 } 1007 } 1008 1009 if (!target_sp) 1010 { 1011 // If there isn't a current target create one. 1012 FileSpec emptyFileSpec; 1013 1014 error = m_interpreter.GetDebugger().GetTargetList().CreateTarget (m_interpreter.GetDebugger(), 1015 emptyFileSpec, 1016 NULL, 1017 false, 1018 NULL, // No platform options 1019 target_sp); 1020 if (!target_sp || error.Fail()) 1021 { 1022 result.AppendError(error.AsCString("Error creating target")); 1023 result.SetStatus (eReturnStatusFailed); 1024 return false; 1025 } 1026 m_interpreter.GetDebugger().GetTargetList().SetSelectedTarget(target_sp.get()); 1027 } 1028 1029 if (command.GetArgumentCount() == 1) 1030 { 1031 const char *plugin_name = NULL; 1032 if (!m_options.plugin_name.empty()) 1033 plugin_name = m_options.plugin_name.c_str(); 1034 1035 const char *remote_url = command.GetArgumentAtIndex(0); 1036 process = target_sp->CreateProcess (m_interpreter.GetDebugger().GetListener(), plugin_name, NULL).get(); 1037 1038 if (process) 1039 { 1040 error = process->ConnectRemote (remote_url); 1041 1042 if (error.Fail()) 1043 { 1044 result.AppendError(error.AsCString("Remote connect failed")); 1045 result.SetStatus (eReturnStatusFailed); 1046 target_sp->DeleteCurrentProcess(); 1047 return false; 1048 } 1049 } 1050 else 1051 { 1052 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", 1053 m_cmd_name.c_str()); 1054 result.SetStatus (eReturnStatusFailed); 1055 } 1056 } 1057 else 1058 { 1059 result.AppendErrorWithFormat ("'%s' takes exactly one argument:\nUsage: %s\n", 1060 m_cmd_name.c_str(), 1061 m_cmd_syntax.c_str()); 1062 result.SetStatus (eReturnStatusFailed); 1063 } 1064 return result.Succeeded(); 1065 } 1066 1067 CommandOptions m_options; 1068 }; 1069 1070 1071 OptionDefinition 1072 CommandObjectProcessConnect::CommandOptions::g_option_table[] = 1073 { 1074 { LLDB_OPT_SET_ALL, false, "plugin", 'p', required_argument, NULL, 0, eArgTypePlugin, "Name of the process plugin you want to use."}, 1075 { 0, false, NULL, 0 , 0, NULL, 0, eArgTypeNone, NULL } 1076 }; 1077 1078 //------------------------------------------------------------------------- 1079 // CommandObjectProcessLoad 1080 //------------------------------------------------------------------------- 1081 #pragma mark CommandObjectProcessLoad 1082 1083 class CommandObjectProcessLoad : public CommandObjectParsed 1084 { 1085 public: 1086 1087 CommandObjectProcessLoad (CommandInterpreter &interpreter) : 1088 CommandObjectParsed (interpreter, 1089 "process load", 1090 "Load a shared library into the current process.", 1091 "process load <filename> [<filename> ...]", 1092 eFlagProcessMustBeLaunched | eFlagProcessMustBePaused) 1093 { 1094 } 1095 1096 ~CommandObjectProcessLoad () 1097 { 1098 } 1099 1100 protected: 1101 bool 1102 DoExecute (Args& command, 1103 CommandReturnObject &result) 1104 { 1105 Process *process = m_interpreter.GetExecutionContext().GetProcessPtr(); 1106 if (process == NULL) 1107 { 1108 result.AppendError ("must have a valid process in order to load a shared library"); 1109 result.SetStatus (eReturnStatusFailed); 1110 return false; 1111 } 1112 1113 const uint32_t argc = command.GetArgumentCount(); 1114 1115 for (uint32_t i=0; i<argc; ++i) 1116 { 1117 Error error; 1118 const char *image_path = command.GetArgumentAtIndex(i); 1119 FileSpec image_spec (image_path, false); 1120 process->GetTarget().GetPlatform()->ResolveRemotePath(image_spec, image_spec); 1121 uint32_t image_token = process->LoadImage(image_spec, error); 1122 if (image_token != LLDB_INVALID_IMAGE_TOKEN) 1123 { 1124 result.AppendMessageWithFormat ("Loading \"%s\"...ok\nImage %u loaded.\n", image_path, image_token); 1125 result.SetStatus (eReturnStatusSuccessFinishResult); 1126 } 1127 else 1128 { 1129 result.AppendErrorWithFormat ("failed to load '%s': %s", image_path, error.AsCString()); 1130 result.SetStatus (eReturnStatusFailed); 1131 } 1132 } 1133 return result.Succeeded(); 1134 } 1135 }; 1136 1137 1138 //------------------------------------------------------------------------- 1139 // CommandObjectProcessUnload 1140 //------------------------------------------------------------------------- 1141 #pragma mark CommandObjectProcessUnload 1142 1143 class CommandObjectProcessUnload : public CommandObjectParsed 1144 { 1145 public: 1146 1147 CommandObjectProcessUnload (CommandInterpreter &interpreter) : 1148 CommandObjectParsed (interpreter, 1149 "process unload", 1150 "Unload a shared library from the current process using the index returned by a previous call to \"process load\".", 1151 "process unload <index>", 1152 eFlagProcessMustBeLaunched | eFlagProcessMustBePaused) 1153 { 1154 } 1155 1156 ~CommandObjectProcessUnload () 1157 { 1158 } 1159 1160 protected: 1161 bool 1162 DoExecute (Args& command, 1163 CommandReturnObject &result) 1164 { 1165 Process *process = m_interpreter.GetExecutionContext().GetProcessPtr(); 1166 if (process == NULL) 1167 { 1168 result.AppendError ("must have a valid process in order to load a shared library"); 1169 result.SetStatus (eReturnStatusFailed); 1170 return false; 1171 } 1172 1173 const uint32_t argc = command.GetArgumentCount(); 1174 1175 for (uint32_t i=0; i<argc; ++i) 1176 { 1177 const char *image_token_cstr = command.GetArgumentAtIndex(i); 1178 uint32_t image_token = Args::StringToUInt32(image_token_cstr, LLDB_INVALID_IMAGE_TOKEN, 0); 1179 if (image_token == LLDB_INVALID_IMAGE_TOKEN) 1180 { 1181 result.AppendErrorWithFormat ("invalid image index argument '%s'", image_token_cstr); 1182 result.SetStatus (eReturnStatusFailed); 1183 break; 1184 } 1185 else 1186 { 1187 Error error (process->UnloadImage(image_token)); 1188 if (error.Success()) 1189 { 1190 result.AppendMessageWithFormat ("Unloading shared library with index %u...ok\n", image_token); 1191 result.SetStatus (eReturnStatusSuccessFinishResult); 1192 } 1193 else 1194 { 1195 result.AppendErrorWithFormat ("failed to unload image: %s", error.AsCString()); 1196 result.SetStatus (eReturnStatusFailed); 1197 break; 1198 } 1199 } 1200 } 1201 return result.Succeeded(); 1202 } 1203 }; 1204 1205 //------------------------------------------------------------------------- 1206 // CommandObjectProcessSignal 1207 //------------------------------------------------------------------------- 1208 #pragma mark CommandObjectProcessSignal 1209 1210 class CommandObjectProcessSignal : public CommandObjectParsed 1211 { 1212 public: 1213 1214 CommandObjectProcessSignal (CommandInterpreter &interpreter) : 1215 CommandObjectParsed (interpreter, 1216 "process signal", 1217 "Send a UNIX signal to the current process being debugged.", 1218 NULL) 1219 { 1220 CommandArgumentEntry arg; 1221 CommandArgumentData signal_arg; 1222 1223 // Define the first (and only) variant of this arg. 1224 signal_arg.arg_type = eArgTypeUnixSignal; 1225 signal_arg.arg_repetition = eArgRepeatPlain; 1226 1227 // There is only one variant this argument could be; put it into the argument entry. 1228 arg.push_back (signal_arg); 1229 1230 // Push the data for the first argument into the m_arguments vector. 1231 m_arguments.push_back (arg); 1232 } 1233 1234 ~CommandObjectProcessSignal () 1235 { 1236 } 1237 1238 protected: 1239 bool 1240 DoExecute (Args& command, 1241 CommandReturnObject &result) 1242 { 1243 Process *process = m_interpreter.GetExecutionContext().GetProcessPtr(); 1244 if (process == NULL) 1245 { 1246 result.AppendError ("no process to signal"); 1247 result.SetStatus (eReturnStatusFailed); 1248 return false; 1249 } 1250 1251 if (command.GetArgumentCount() == 1) 1252 { 1253 int signo = LLDB_INVALID_SIGNAL_NUMBER; 1254 1255 const char *signal_name = command.GetArgumentAtIndex(0); 1256 if (::isxdigit (signal_name[0])) 1257 signo = Args::StringToSInt32(signal_name, LLDB_INVALID_SIGNAL_NUMBER, 0); 1258 else 1259 signo = process->GetUnixSignals().GetSignalNumberFromName (signal_name); 1260 1261 if (signo == LLDB_INVALID_SIGNAL_NUMBER) 1262 { 1263 result.AppendErrorWithFormat ("Invalid signal argument '%s'.\n", command.GetArgumentAtIndex(0)); 1264 result.SetStatus (eReturnStatusFailed); 1265 } 1266 else 1267 { 1268 Error error (process->Signal (signo)); 1269 if (error.Success()) 1270 { 1271 result.SetStatus (eReturnStatusSuccessFinishResult); 1272 } 1273 else 1274 { 1275 result.AppendErrorWithFormat ("Failed to send signal %i: %s\n", signo, error.AsCString()); 1276 result.SetStatus (eReturnStatusFailed); 1277 } 1278 } 1279 } 1280 else 1281 { 1282 result.AppendErrorWithFormat("'%s' takes exactly one signal number argument:\nUsage: %s\n", m_cmd_name.c_str(), 1283 m_cmd_syntax.c_str()); 1284 result.SetStatus (eReturnStatusFailed); 1285 } 1286 return result.Succeeded(); 1287 } 1288 }; 1289 1290 1291 //------------------------------------------------------------------------- 1292 // CommandObjectProcessInterrupt 1293 //------------------------------------------------------------------------- 1294 #pragma mark CommandObjectProcessInterrupt 1295 1296 class CommandObjectProcessInterrupt : public CommandObjectParsed 1297 { 1298 public: 1299 1300 1301 CommandObjectProcessInterrupt (CommandInterpreter &interpreter) : 1302 CommandObjectParsed (interpreter, 1303 "process interrupt", 1304 "Interrupt the current process being debugged.", 1305 "process interrupt", 1306 eFlagProcessMustBeLaunched) 1307 { 1308 } 1309 1310 ~CommandObjectProcessInterrupt () 1311 { 1312 } 1313 1314 protected: 1315 bool 1316 DoExecute (Args& command, 1317 CommandReturnObject &result) 1318 { 1319 Process *process = m_interpreter.GetExecutionContext().GetProcessPtr(); 1320 if (process == NULL) 1321 { 1322 result.AppendError ("no process to halt"); 1323 result.SetStatus (eReturnStatusFailed); 1324 return false; 1325 } 1326 1327 if (command.GetArgumentCount() == 0) 1328 { 1329 Error error(process->Halt ()); 1330 if (error.Success()) 1331 { 1332 result.SetStatus (eReturnStatusSuccessFinishResult); 1333 1334 // Maybe we should add a "SuspendThreadPlans so we 1335 // can halt, and keep in place all the current thread plans. 1336 process->GetThreadList().DiscardThreadPlans(); 1337 } 1338 else 1339 { 1340 result.AppendErrorWithFormat ("Failed to halt process: %s\n", error.AsCString()); 1341 result.SetStatus (eReturnStatusFailed); 1342 } 1343 } 1344 else 1345 { 1346 result.AppendErrorWithFormat("'%s' takes no arguments:\nUsage: %s\n", 1347 m_cmd_name.c_str(), 1348 m_cmd_syntax.c_str()); 1349 result.SetStatus (eReturnStatusFailed); 1350 } 1351 return result.Succeeded(); 1352 } 1353 }; 1354 1355 //------------------------------------------------------------------------- 1356 // CommandObjectProcessKill 1357 //------------------------------------------------------------------------- 1358 #pragma mark CommandObjectProcessKill 1359 1360 class CommandObjectProcessKill : public CommandObjectParsed 1361 { 1362 public: 1363 1364 CommandObjectProcessKill (CommandInterpreter &interpreter) : 1365 CommandObjectParsed (interpreter, 1366 "process kill", 1367 "Terminate the current process being debugged.", 1368 "process kill", 1369 eFlagProcessMustBeLaunched) 1370 { 1371 } 1372 1373 ~CommandObjectProcessKill () 1374 { 1375 } 1376 1377 protected: 1378 bool 1379 DoExecute (Args& command, 1380 CommandReturnObject &result) 1381 { 1382 Process *process = m_interpreter.GetExecutionContext().GetProcessPtr(); 1383 if (process == NULL) 1384 { 1385 result.AppendError ("no process to kill"); 1386 result.SetStatus (eReturnStatusFailed); 1387 return false; 1388 } 1389 1390 if (command.GetArgumentCount() == 0) 1391 { 1392 Error error (process->Destroy()); 1393 if (error.Success()) 1394 { 1395 result.SetStatus (eReturnStatusSuccessFinishResult); 1396 } 1397 else 1398 { 1399 result.AppendErrorWithFormat ("Failed to kill process: %s\n", error.AsCString()); 1400 result.SetStatus (eReturnStatusFailed); 1401 } 1402 } 1403 else 1404 { 1405 result.AppendErrorWithFormat("'%s' takes no arguments:\nUsage: %s\n", 1406 m_cmd_name.c_str(), 1407 m_cmd_syntax.c_str()); 1408 result.SetStatus (eReturnStatusFailed); 1409 } 1410 return result.Succeeded(); 1411 } 1412 }; 1413 1414 //------------------------------------------------------------------------- 1415 // CommandObjectProcessStatus 1416 //------------------------------------------------------------------------- 1417 #pragma mark CommandObjectProcessStatus 1418 1419 class CommandObjectProcessStatus : public CommandObjectParsed 1420 { 1421 public: 1422 CommandObjectProcessStatus (CommandInterpreter &interpreter) : 1423 CommandObjectParsed (interpreter, 1424 "process status", 1425 "Show the current status and location of executing process.", 1426 "process status", 1427 0) 1428 { 1429 } 1430 1431 ~CommandObjectProcessStatus() 1432 { 1433 } 1434 1435 1436 bool 1437 DoExecute (Args& command, CommandReturnObject &result) 1438 { 1439 Stream &strm = result.GetOutputStream(); 1440 result.SetStatus (eReturnStatusSuccessFinishNoResult); 1441 ExecutionContext exe_ctx(m_interpreter.GetExecutionContext()); 1442 Process *process = exe_ctx.GetProcessPtr(); 1443 if (process) 1444 { 1445 const bool only_threads_with_stop_reason = true; 1446 const uint32_t start_frame = 0; 1447 const uint32_t num_frames = 1; 1448 const uint32_t num_frames_with_source = 1; 1449 process->GetStatus(strm); 1450 process->GetThreadStatus (strm, 1451 only_threads_with_stop_reason, 1452 start_frame, 1453 num_frames, 1454 num_frames_with_source); 1455 1456 } 1457 else 1458 { 1459 result.AppendError ("No process."); 1460 result.SetStatus (eReturnStatusFailed); 1461 } 1462 return result.Succeeded(); 1463 } 1464 }; 1465 1466 //------------------------------------------------------------------------- 1467 // CommandObjectProcessHandle 1468 //------------------------------------------------------------------------- 1469 #pragma mark CommandObjectProcessHandle 1470 1471 class CommandObjectProcessHandle : public CommandObjectParsed 1472 { 1473 public: 1474 1475 class CommandOptions : public Options 1476 { 1477 public: 1478 1479 CommandOptions (CommandInterpreter &interpreter) : 1480 Options (interpreter) 1481 { 1482 OptionParsingStarting (); 1483 } 1484 1485 ~CommandOptions () 1486 { 1487 } 1488 1489 Error 1490 SetOptionValue (uint32_t option_idx, const char *option_arg) 1491 { 1492 Error error; 1493 char short_option = (char) m_getopt_table[option_idx].val; 1494 1495 switch (short_option) 1496 { 1497 case 's': 1498 stop = option_arg; 1499 break; 1500 case 'n': 1501 notify = option_arg; 1502 break; 1503 case 'p': 1504 pass = option_arg; 1505 break; 1506 default: 1507 error.SetErrorStringWithFormat("invalid short option character '%c'", short_option); 1508 break; 1509 } 1510 return error; 1511 } 1512 1513 void 1514 OptionParsingStarting () 1515 { 1516 stop.clear(); 1517 notify.clear(); 1518 pass.clear(); 1519 } 1520 1521 const OptionDefinition* 1522 GetDefinitions () 1523 { 1524 return g_option_table; 1525 } 1526 1527 // Options table: Required for subclasses of Options. 1528 1529 static OptionDefinition g_option_table[]; 1530 1531 // Instance variables to hold the values for command options. 1532 1533 std::string stop; 1534 std::string notify; 1535 std::string pass; 1536 }; 1537 1538 1539 CommandObjectProcessHandle (CommandInterpreter &interpreter) : 1540 CommandObjectParsed (interpreter, 1541 "process handle", 1542 "Show or update what the process and debugger should do with various signals received from the OS.", 1543 NULL), 1544 m_options (interpreter) 1545 { 1546 SetHelpLong ("If no signals are specified, update them all. If no update option is specified, list the current values.\n"); 1547 CommandArgumentEntry arg; 1548 CommandArgumentData signal_arg; 1549 1550 signal_arg.arg_type = eArgTypeUnixSignal; 1551 signal_arg.arg_repetition = eArgRepeatStar; 1552 1553 arg.push_back (signal_arg); 1554 1555 m_arguments.push_back (arg); 1556 } 1557 1558 ~CommandObjectProcessHandle () 1559 { 1560 } 1561 1562 Options * 1563 GetOptions () 1564 { 1565 return &m_options; 1566 } 1567 1568 bool 1569 VerifyCommandOptionValue (const std::string &option, int &real_value) 1570 { 1571 bool okay = true; 1572 1573 bool success = false; 1574 bool tmp_value = Args::StringToBoolean (option.c_str(), false, &success); 1575 1576 if (success && tmp_value) 1577 real_value = 1; 1578 else if (success && !tmp_value) 1579 real_value = 0; 1580 else 1581 { 1582 // If the value isn't 'true' or 'false', it had better be 0 or 1. 1583 real_value = Args::StringToUInt32 (option.c_str(), 3); 1584 if (real_value != 0 && real_value != 1) 1585 okay = false; 1586 } 1587 1588 return okay; 1589 } 1590 1591 void 1592 PrintSignalHeader (Stream &str) 1593 { 1594 str.Printf ("NAME PASS STOP NOTIFY\n"); 1595 str.Printf ("========== ===== ===== ======\n"); 1596 } 1597 1598 void 1599 PrintSignal (Stream &str, int32_t signo, const char *sig_name, UnixSignals &signals) 1600 { 1601 bool stop; 1602 bool suppress; 1603 bool notify; 1604 1605 str.Printf ("%-10s ", sig_name); 1606 if (signals.GetSignalInfo (signo, suppress, stop, notify)) 1607 { 1608 bool pass = !suppress; 1609 str.Printf ("%s %s %s", 1610 (pass ? "true " : "false"), 1611 (stop ? "true " : "false"), 1612 (notify ? "true " : "false")); 1613 } 1614 str.Printf ("\n"); 1615 } 1616 1617 void 1618 PrintSignalInformation (Stream &str, Args &signal_args, int num_valid_signals, UnixSignals &signals) 1619 { 1620 PrintSignalHeader (str); 1621 1622 if (num_valid_signals > 0) 1623 { 1624 size_t num_args = signal_args.GetArgumentCount(); 1625 for (size_t i = 0; i < num_args; ++i) 1626 { 1627 int32_t signo = signals.GetSignalNumberFromName (signal_args.GetArgumentAtIndex (i)); 1628 if (signo != LLDB_INVALID_SIGNAL_NUMBER) 1629 PrintSignal (str, signo, signal_args.GetArgumentAtIndex (i), signals); 1630 } 1631 } 1632 else // Print info for ALL signals 1633 { 1634 int32_t signo = signals.GetFirstSignalNumber(); 1635 while (signo != LLDB_INVALID_SIGNAL_NUMBER) 1636 { 1637 PrintSignal (str, signo, signals.GetSignalAsCString (signo), signals); 1638 signo = signals.GetNextSignalNumber (signo); 1639 } 1640 } 1641 } 1642 1643 protected: 1644 bool 1645 DoExecute (Args &signal_args, CommandReturnObject &result) 1646 { 1647 TargetSP target_sp = m_interpreter.GetDebugger().GetSelectedTarget(); 1648 1649 if (!target_sp) 1650 { 1651 result.AppendError ("No current target;" 1652 " cannot handle signals until you have a valid target and process.\n"); 1653 result.SetStatus (eReturnStatusFailed); 1654 return false; 1655 } 1656 1657 ProcessSP process_sp = target_sp->GetProcessSP(); 1658 1659 if (!process_sp) 1660 { 1661 result.AppendError ("No current process; cannot handle signals until you have a valid process.\n"); 1662 result.SetStatus (eReturnStatusFailed); 1663 return false; 1664 } 1665 1666 int stop_action = -1; // -1 means leave the current setting alone 1667 int pass_action = -1; // -1 means leave the current setting alone 1668 int notify_action = -1; // -1 means leave the current setting alone 1669 1670 if (! m_options.stop.empty() 1671 && ! VerifyCommandOptionValue (m_options.stop, stop_action)) 1672 { 1673 result.AppendError ("Invalid argument for command option --stop; must be true or false.\n"); 1674 result.SetStatus (eReturnStatusFailed); 1675 return false; 1676 } 1677 1678 if (! m_options.notify.empty() 1679 && ! VerifyCommandOptionValue (m_options.notify, notify_action)) 1680 { 1681 result.AppendError ("Invalid argument for command option --notify; must be true or false.\n"); 1682 result.SetStatus (eReturnStatusFailed); 1683 return false; 1684 } 1685 1686 if (! m_options.pass.empty() 1687 && ! VerifyCommandOptionValue (m_options.pass, pass_action)) 1688 { 1689 result.AppendError ("Invalid argument for command option --pass; must be true or false.\n"); 1690 result.SetStatus (eReturnStatusFailed); 1691 return false; 1692 } 1693 1694 size_t num_args = signal_args.GetArgumentCount(); 1695 UnixSignals &signals = process_sp->GetUnixSignals(); 1696 int num_signals_set = 0; 1697 1698 if (num_args > 0) 1699 { 1700 for (size_t i = 0; i < num_args; ++i) 1701 { 1702 int32_t signo = signals.GetSignalNumberFromName (signal_args.GetArgumentAtIndex (i)); 1703 if (signo != LLDB_INVALID_SIGNAL_NUMBER) 1704 { 1705 // Casting the actions as bools here should be okay, because VerifyCommandOptionValue guarantees 1706 // the value is either 0 or 1. 1707 if (stop_action != -1) 1708 signals.SetShouldStop (signo, (bool) stop_action); 1709 if (pass_action != -1) 1710 { 1711 bool suppress = ! ((bool) pass_action); 1712 signals.SetShouldSuppress (signo, suppress); 1713 } 1714 if (notify_action != -1) 1715 signals.SetShouldNotify (signo, (bool) notify_action); 1716 ++num_signals_set; 1717 } 1718 else 1719 { 1720 result.AppendErrorWithFormat ("Invalid signal name '%s'\n", signal_args.GetArgumentAtIndex (i)); 1721 } 1722 } 1723 } 1724 else 1725 { 1726 // No signal specified, if any command options were specified, update ALL signals. 1727 if ((notify_action != -1) || (stop_action != -1) || (pass_action != -1)) 1728 { 1729 if (m_interpreter.Confirm ("Do you really want to update all the signals?", false)) 1730 { 1731 int32_t signo = signals.GetFirstSignalNumber(); 1732 while (signo != LLDB_INVALID_SIGNAL_NUMBER) 1733 { 1734 if (notify_action != -1) 1735 signals.SetShouldNotify (signo, (bool) notify_action); 1736 if (stop_action != -1) 1737 signals.SetShouldStop (signo, (bool) stop_action); 1738 if (pass_action != -1) 1739 { 1740 bool suppress = ! ((bool) pass_action); 1741 signals.SetShouldSuppress (signo, suppress); 1742 } 1743 signo = signals.GetNextSignalNumber (signo); 1744 } 1745 } 1746 } 1747 } 1748 1749 PrintSignalInformation (result.GetOutputStream(), signal_args, num_signals_set, signals); 1750 1751 if (num_signals_set > 0) 1752 result.SetStatus (eReturnStatusSuccessFinishNoResult); 1753 else 1754 result.SetStatus (eReturnStatusFailed); 1755 1756 return result.Succeeded(); 1757 } 1758 1759 CommandOptions m_options; 1760 }; 1761 1762 OptionDefinition 1763 CommandObjectProcessHandle::CommandOptions::g_option_table[] = 1764 { 1765 { 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." }, 1766 { 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." }, 1767 { LLDB_OPT_SET_1, false, "pass", 'p', required_argument, NULL, 0, eArgTypeBoolean, "Whether or not the signal should be passed to the process." }, 1768 { 0, false, NULL, 0, 0, NULL, 0, eArgTypeNone, NULL } 1769 }; 1770 1771 //------------------------------------------------------------------------- 1772 // CommandObjectMultiwordProcess 1773 //------------------------------------------------------------------------- 1774 1775 CommandObjectMultiwordProcess::CommandObjectMultiwordProcess (CommandInterpreter &interpreter) : 1776 CommandObjectMultiword (interpreter, 1777 "process", 1778 "A set of commands for operating on a process.", 1779 "process <subcommand> [<subcommand-options>]") 1780 { 1781 LoadSubCommand ("attach", CommandObjectSP (new CommandObjectProcessAttach (interpreter))); 1782 LoadSubCommand ("launch", CommandObjectSP (new CommandObjectProcessLaunch (interpreter))); 1783 LoadSubCommand ("continue", CommandObjectSP (new CommandObjectProcessContinue (interpreter))); 1784 LoadSubCommand ("connect", CommandObjectSP (new CommandObjectProcessConnect (interpreter))); 1785 LoadSubCommand ("detach", CommandObjectSP (new CommandObjectProcessDetach (interpreter))); 1786 LoadSubCommand ("load", CommandObjectSP (new CommandObjectProcessLoad (interpreter))); 1787 LoadSubCommand ("unload", CommandObjectSP (new CommandObjectProcessUnload (interpreter))); 1788 LoadSubCommand ("signal", CommandObjectSP (new CommandObjectProcessSignal (interpreter))); 1789 LoadSubCommand ("handle", CommandObjectSP (new CommandObjectProcessHandle (interpreter))); 1790 LoadSubCommand ("status", CommandObjectSP (new CommandObjectProcessStatus (interpreter))); 1791 LoadSubCommand ("interrupt", CommandObjectSP (new CommandObjectProcessInterrupt (interpreter))); 1792 LoadSubCommand ("kill", CommandObjectSP (new CommandObjectProcessKill (interpreter))); 1793 } 1794 1795 CommandObjectMultiwordProcess::~CommandObjectMultiwordProcess () 1796 { 1797 } 1798 1799