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 { // Scope for thread list mutex: 796 Mutex::Locker locker (process->GetThreadList().GetMutex()); 797 const uint32_t num_threads = process->GetThreadList().GetSize(); 798 799 // Set the actions that the threads should each take when resuming 800 for (uint32_t idx=0; idx<num_threads; ++idx) 801 { 802 process->GetThreadList().GetThreadAtIndex(idx)->SetResumeState (eStateRunning); 803 } 804 } 805 806 Error error(process->Resume()); 807 if (error.Success()) 808 { 809 result.AppendMessageWithFormat ("Process %llu resuming\n", process->GetID()); 810 if (synchronous_execution) 811 { 812 state = process->WaitForProcessToStop (NULL); 813 814 result.SetDidChangeProcessState (true); 815 result.AppendMessageWithFormat ("Process %llu %s\n", process->GetID(), StateAsCString (state)); 816 result.SetStatus (eReturnStatusSuccessFinishNoResult); 817 } 818 else 819 { 820 result.SetStatus (eReturnStatusSuccessContinuingNoResult); 821 } 822 } 823 else 824 { 825 result.AppendErrorWithFormat("Failed to resume process: %s.\n", error.AsCString()); 826 result.SetStatus (eReturnStatusFailed); 827 } 828 } 829 else 830 { 831 result.AppendErrorWithFormat ("Process cannot be continued from its current state (%s).\n", 832 StateAsCString(state)); 833 result.SetStatus (eReturnStatusFailed); 834 } 835 return result.Succeeded(); 836 } 837 838 Options * 839 GetOptions () 840 { 841 return &m_options; 842 } 843 844 CommandOptions m_options; 845 846 }; 847 848 OptionDefinition 849 CommandObjectProcessContinue::CommandOptions::g_option_table[] = 850 { 851 { LLDB_OPT_SET_ALL, false, "ignore-count",'i', required_argument, NULL, 0, eArgTypeUnsignedInteger, 852 "Ignore <N> crossings of the breakpoint (if it exists) for the currently selected thread."}, 853 { 0, false, NULL, 0, 0, NULL, 0, eArgTypeNone, NULL } 854 }; 855 856 //------------------------------------------------------------------------- 857 // CommandObjectProcessDetach 858 //------------------------------------------------------------------------- 859 #pragma mark CommandObjectProcessDetach 860 861 class CommandObjectProcessDetach : public CommandObjectParsed 862 { 863 public: 864 865 CommandObjectProcessDetach (CommandInterpreter &interpreter) : 866 CommandObjectParsed (interpreter, 867 "process detach", 868 "Detach from the current process being debugged.", 869 "process detach", 870 eFlagProcessMustBeLaunched) 871 { 872 } 873 874 ~CommandObjectProcessDetach () 875 { 876 } 877 878 protected: 879 bool 880 DoExecute (Args& command, 881 CommandReturnObject &result) 882 { 883 Process *process = m_interpreter.GetExecutionContext().GetProcessPtr(); 884 if (process == NULL) 885 { 886 result.AppendError ("must have a valid process in order to detach"); 887 result.SetStatus (eReturnStatusFailed); 888 return false; 889 } 890 891 result.AppendMessageWithFormat ("Detaching from process %llu\n", process->GetID()); 892 Error error (process->Detach()); 893 if (error.Success()) 894 { 895 result.SetStatus (eReturnStatusSuccessFinishResult); 896 } 897 else 898 { 899 result.AppendErrorWithFormat ("Detach failed: %s\n", error.AsCString()); 900 result.SetStatus (eReturnStatusFailed); 901 return false; 902 } 903 return result.Succeeded(); 904 } 905 }; 906 907 //------------------------------------------------------------------------- 908 // CommandObjectProcessConnect 909 //------------------------------------------------------------------------- 910 #pragma mark CommandObjectProcessConnect 911 912 class CommandObjectProcessConnect : public CommandObjectParsed 913 { 914 public: 915 916 class CommandOptions : public Options 917 { 918 public: 919 920 CommandOptions (CommandInterpreter &interpreter) : 921 Options(interpreter) 922 { 923 // Keep default values of all options in one place: OptionParsingStarting () 924 OptionParsingStarting (); 925 } 926 927 ~CommandOptions () 928 { 929 } 930 931 Error 932 SetOptionValue (uint32_t option_idx, const char *option_arg) 933 { 934 Error error; 935 char short_option = (char) m_getopt_table[option_idx].val; 936 937 switch (short_option) 938 { 939 case 'p': 940 plugin_name.assign (option_arg); 941 break; 942 943 default: 944 error.SetErrorStringWithFormat("invalid short option character '%c'", short_option); 945 break; 946 } 947 return error; 948 } 949 950 void 951 OptionParsingStarting () 952 { 953 plugin_name.clear(); 954 } 955 956 const OptionDefinition* 957 GetDefinitions () 958 { 959 return g_option_table; 960 } 961 962 // Options table: Required for subclasses of Options. 963 964 static OptionDefinition g_option_table[]; 965 966 // Instance variables to hold the values for command options. 967 968 std::string plugin_name; 969 }; 970 971 CommandObjectProcessConnect (CommandInterpreter &interpreter) : 972 CommandObjectParsed (interpreter, 973 "process connect", 974 "Connect to a remote debug service.", 975 "process connect <remote-url>", 976 0), 977 m_options (interpreter) 978 { 979 } 980 981 ~CommandObjectProcessConnect () 982 { 983 } 984 985 986 Options * 987 GetOptions () 988 { 989 return &m_options; 990 } 991 992 protected: 993 bool 994 DoExecute (Args& command, 995 CommandReturnObject &result) 996 { 997 998 TargetSP target_sp (m_interpreter.GetDebugger().GetSelectedTarget()); 999 Error error; 1000 Process *process = m_interpreter.GetExecutionContext().GetProcessPtr(); 1001 if (process) 1002 { 1003 if (process->IsAlive()) 1004 { 1005 result.AppendErrorWithFormat ("Process %llu is currently being debugged, kill the process before connecting.\n", 1006 process->GetID()); 1007 result.SetStatus (eReturnStatusFailed); 1008 return false; 1009 } 1010 } 1011 1012 if (!target_sp) 1013 { 1014 // If there isn't a current target create one. 1015 FileSpec emptyFileSpec; 1016 1017 error = m_interpreter.GetDebugger().GetTargetList().CreateTarget (m_interpreter.GetDebugger(), 1018 emptyFileSpec, 1019 NULL, 1020 false, 1021 NULL, // No platform options 1022 target_sp); 1023 if (!target_sp || error.Fail()) 1024 { 1025 result.AppendError(error.AsCString("Error creating target")); 1026 result.SetStatus (eReturnStatusFailed); 1027 return false; 1028 } 1029 m_interpreter.GetDebugger().GetTargetList().SetSelectedTarget(target_sp.get()); 1030 } 1031 1032 if (command.GetArgumentCount() == 1) 1033 { 1034 const char *plugin_name = NULL; 1035 if (!m_options.plugin_name.empty()) 1036 plugin_name = m_options.plugin_name.c_str(); 1037 1038 const char *remote_url = command.GetArgumentAtIndex(0); 1039 process = target_sp->CreateProcess (m_interpreter.GetDebugger().GetListener(), plugin_name, NULL).get(); 1040 1041 if (process) 1042 { 1043 error = process->ConnectRemote (remote_url); 1044 1045 if (error.Fail()) 1046 { 1047 result.AppendError(error.AsCString("Remote connect failed")); 1048 result.SetStatus (eReturnStatusFailed); 1049 target_sp->DeleteCurrentProcess(); 1050 return false; 1051 } 1052 } 1053 else 1054 { 1055 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", 1056 m_cmd_name.c_str()); 1057 result.SetStatus (eReturnStatusFailed); 1058 } 1059 } 1060 else 1061 { 1062 result.AppendErrorWithFormat ("'%s' takes exactly one argument:\nUsage: %s\n", 1063 m_cmd_name.c_str(), 1064 m_cmd_syntax.c_str()); 1065 result.SetStatus (eReturnStatusFailed); 1066 } 1067 return result.Succeeded(); 1068 } 1069 1070 CommandOptions m_options; 1071 }; 1072 1073 1074 OptionDefinition 1075 CommandObjectProcessConnect::CommandOptions::g_option_table[] = 1076 { 1077 { LLDB_OPT_SET_ALL, false, "plugin", 'p', required_argument, NULL, 0, eArgTypePlugin, "Name of the process plugin you want to use."}, 1078 { 0, false, NULL, 0 , 0, NULL, 0, eArgTypeNone, NULL } 1079 }; 1080 1081 //------------------------------------------------------------------------- 1082 // CommandObjectProcessLoad 1083 //------------------------------------------------------------------------- 1084 #pragma mark CommandObjectProcessLoad 1085 1086 class CommandObjectProcessLoad : public CommandObjectParsed 1087 { 1088 public: 1089 1090 CommandObjectProcessLoad (CommandInterpreter &interpreter) : 1091 CommandObjectParsed (interpreter, 1092 "process load", 1093 "Load a shared library into the current process.", 1094 "process load <filename> [<filename> ...]", 1095 eFlagProcessMustBeLaunched | eFlagProcessMustBePaused) 1096 { 1097 } 1098 1099 ~CommandObjectProcessLoad () 1100 { 1101 } 1102 1103 protected: 1104 bool 1105 DoExecute (Args& command, 1106 CommandReturnObject &result) 1107 { 1108 Process *process = m_interpreter.GetExecutionContext().GetProcessPtr(); 1109 if (process == NULL) 1110 { 1111 result.AppendError ("must have a valid process in order to load a shared library"); 1112 result.SetStatus (eReturnStatusFailed); 1113 return false; 1114 } 1115 1116 const uint32_t argc = command.GetArgumentCount(); 1117 1118 for (uint32_t i=0; i<argc; ++i) 1119 { 1120 Error error; 1121 const char *image_path = command.GetArgumentAtIndex(i); 1122 FileSpec image_spec (image_path, false); 1123 process->GetTarget().GetPlatform()->ResolveRemotePath(image_spec, image_spec); 1124 uint32_t image_token = process->LoadImage(image_spec, error); 1125 if (image_token != LLDB_INVALID_IMAGE_TOKEN) 1126 { 1127 result.AppendMessageWithFormat ("Loading \"%s\"...ok\nImage %u loaded.\n", image_path, image_token); 1128 result.SetStatus (eReturnStatusSuccessFinishResult); 1129 } 1130 else 1131 { 1132 result.AppendErrorWithFormat ("failed to load '%s': %s", image_path, error.AsCString()); 1133 result.SetStatus (eReturnStatusFailed); 1134 } 1135 } 1136 return result.Succeeded(); 1137 } 1138 }; 1139 1140 1141 //------------------------------------------------------------------------- 1142 // CommandObjectProcessUnload 1143 //------------------------------------------------------------------------- 1144 #pragma mark CommandObjectProcessUnload 1145 1146 class CommandObjectProcessUnload : public CommandObjectParsed 1147 { 1148 public: 1149 1150 CommandObjectProcessUnload (CommandInterpreter &interpreter) : 1151 CommandObjectParsed (interpreter, 1152 "process unload", 1153 "Unload a shared library from the current process using the index returned by a previous call to \"process load\".", 1154 "process unload <index>", 1155 eFlagProcessMustBeLaunched | eFlagProcessMustBePaused) 1156 { 1157 } 1158 1159 ~CommandObjectProcessUnload () 1160 { 1161 } 1162 1163 protected: 1164 bool 1165 DoExecute (Args& command, 1166 CommandReturnObject &result) 1167 { 1168 Process *process = m_interpreter.GetExecutionContext().GetProcessPtr(); 1169 if (process == NULL) 1170 { 1171 result.AppendError ("must have a valid process in order to load a shared library"); 1172 result.SetStatus (eReturnStatusFailed); 1173 return false; 1174 } 1175 1176 const uint32_t argc = command.GetArgumentCount(); 1177 1178 for (uint32_t i=0; i<argc; ++i) 1179 { 1180 const char *image_token_cstr = command.GetArgumentAtIndex(i); 1181 uint32_t image_token = Args::StringToUInt32(image_token_cstr, LLDB_INVALID_IMAGE_TOKEN, 0); 1182 if (image_token == LLDB_INVALID_IMAGE_TOKEN) 1183 { 1184 result.AppendErrorWithFormat ("invalid image index argument '%s'", image_token_cstr); 1185 result.SetStatus (eReturnStatusFailed); 1186 break; 1187 } 1188 else 1189 { 1190 Error error (process->UnloadImage(image_token)); 1191 if (error.Success()) 1192 { 1193 result.AppendMessageWithFormat ("Unloading shared library with index %u...ok\n", image_token); 1194 result.SetStatus (eReturnStatusSuccessFinishResult); 1195 } 1196 else 1197 { 1198 result.AppendErrorWithFormat ("failed to unload image: %s", error.AsCString()); 1199 result.SetStatus (eReturnStatusFailed); 1200 break; 1201 } 1202 } 1203 } 1204 return result.Succeeded(); 1205 } 1206 }; 1207 1208 //------------------------------------------------------------------------- 1209 // CommandObjectProcessSignal 1210 //------------------------------------------------------------------------- 1211 #pragma mark CommandObjectProcessSignal 1212 1213 class CommandObjectProcessSignal : public CommandObjectParsed 1214 { 1215 public: 1216 1217 CommandObjectProcessSignal (CommandInterpreter &interpreter) : 1218 CommandObjectParsed (interpreter, 1219 "process signal", 1220 "Send a UNIX signal to the current process being debugged.", 1221 NULL) 1222 { 1223 CommandArgumentEntry arg; 1224 CommandArgumentData signal_arg; 1225 1226 // Define the first (and only) variant of this arg. 1227 signal_arg.arg_type = eArgTypeUnixSignal; 1228 signal_arg.arg_repetition = eArgRepeatPlain; 1229 1230 // There is only one variant this argument could be; put it into the argument entry. 1231 arg.push_back (signal_arg); 1232 1233 // Push the data for the first argument into the m_arguments vector. 1234 m_arguments.push_back (arg); 1235 } 1236 1237 ~CommandObjectProcessSignal () 1238 { 1239 } 1240 1241 protected: 1242 bool 1243 DoExecute (Args& command, 1244 CommandReturnObject &result) 1245 { 1246 Process *process = m_interpreter.GetExecutionContext().GetProcessPtr(); 1247 if (process == NULL) 1248 { 1249 result.AppendError ("no process to signal"); 1250 result.SetStatus (eReturnStatusFailed); 1251 return false; 1252 } 1253 1254 if (command.GetArgumentCount() == 1) 1255 { 1256 int signo = LLDB_INVALID_SIGNAL_NUMBER; 1257 1258 const char *signal_name = command.GetArgumentAtIndex(0); 1259 if (::isxdigit (signal_name[0])) 1260 signo = Args::StringToSInt32(signal_name, LLDB_INVALID_SIGNAL_NUMBER, 0); 1261 else 1262 signo = process->GetUnixSignals().GetSignalNumberFromName (signal_name); 1263 1264 if (signo == LLDB_INVALID_SIGNAL_NUMBER) 1265 { 1266 result.AppendErrorWithFormat ("Invalid signal argument '%s'.\n", command.GetArgumentAtIndex(0)); 1267 result.SetStatus (eReturnStatusFailed); 1268 } 1269 else 1270 { 1271 Error error (process->Signal (signo)); 1272 if (error.Success()) 1273 { 1274 result.SetStatus (eReturnStatusSuccessFinishResult); 1275 } 1276 else 1277 { 1278 result.AppendErrorWithFormat ("Failed to send signal %i: %s\n", signo, error.AsCString()); 1279 result.SetStatus (eReturnStatusFailed); 1280 } 1281 } 1282 } 1283 else 1284 { 1285 result.AppendErrorWithFormat("'%s' takes exactly one signal number argument:\nUsage: %s\n", m_cmd_name.c_str(), 1286 m_cmd_syntax.c_str()); 1287 result.SetStatus (eReturnStatusFailed); 1288 } 1289 return result.Succeeded(); 1290 } 1291 }; 1292 1293 1294 //------------------------------------------------------------------------- 1295 // CommandObjectProcessInterrupt 1296 //------------------------------------------------------------------------- 1297 #pragma mark CommandObjectProcessInterrupt 1298 1299 class CommandObjectProcessInterrupt : public CommandObjectParsed 1300 { 1301 public: 1302 1303 1304 CommandObjectProcessInterrupt (CommandInterpreter &interpreter) : 1305 CommandObjectParsed (interpreter, 1306 "process interrupt", 1307 "Interrupt the current process being debugged.", 1308 "process interrupt", 1309 eFlagProcessMustBeLaunched) 1310 { 1311 } 1312 1313 ~CommandObjectProcessInterrupt () 1314 { 1315 } 1316 1317 protected: 1318 bool 1319 DoExecute (Args& command, 1320 CommandReturnObject &result) 1321 { 1322 Process *process = m_interpreter.GetExecutionContext().GetProcessPtr(); 1323 if (process == NULL) 1324 { 1325 result.AppendError ("no process to halt"); 1326 result.SetStatus (eReturnStatusFailed); 1327 return false; 1328 } 1329 1330 if (command.GetArgumentCount() == 0) 1331 { 1332 Error error(process->Halt ()); 1333 if (error.Success()) 1334 { 1335 result.SetStatus (eReturnStatusSuccessFinishResult); 1336 1337 // Maybe we should add a "SuspendThreadPlans so we 1338 // can halt, and keep in place all the current thread plans. 1339 process->GetThreadList().DiscardThreadPlans(); 1340 } 1341 else 1342 { 1343 result.AppendErrorWithFormat ("Failed to halt process: %s\n", error.AsCString()); 1344 result.SetStatus (eReturnStatusFailed); 1345 } 1346 } 1347 else 1348 { 1349 result.AppendErrorWithFormat("'%s' takes no arguments:\nUsage: %s\n", 1350 m_cmd_name.c_str(), 1351 m_cmd_syntax.c_str()); 1352 result.SetStatus (eReturnStatusFailed); 1353 } 1354 return result.Succeeded(); 1355 } 1356 }; 1357 1358 //------------------------------------------------------------------------- 1359 // CommandObjectProcessKill 1360 //------------------------------------------------------------------------- 1361 #pragma mark CommandObjectProcessKill 1362 1363 class CommandObjectProcessKill : public CommandObjectParsed 1364 { 1365 public: 1366 1367 CommandObjectProcessKill (CommandInterpreter &interpreter) : 1368 CommandObjectParsed (interpreter, 1369 "process kill", 1370 "Terminate the current process being debugged.", 1371 "process kill", 1372 eFlagProcessMustBeLaunched) 1373 { 1374 } 1375 1376 ~CommandObjectProcessKill () 1377 { 1378 } 1379 1380 protected: 1381 bool 1382 DoExecute (Args& command, 1383 CommandReturnObject &result) 1384 { 1385 Process *process = m_interpreter.GetExecutionContext().GetProcessPtr(); 1386 if (process == NULL) 1387 { 1388 result.AppendError ("no process to kill"); 1389 result.SetStatus (eReturnStatusFailed); 1390 return false; 1391 } 1392 1393 if (command.GetArgumentCount() == 0) 1394 { 1395 Error error (process->Destroy()); 1396 if (error.Success()) 1397 { 1398 result.SetStatus (eReturnStatusSuccessFinishResult); 1399 } 1400 else 1401 { 1402 result.AppendErrorWithFormat ("Failed to kill process: %s\n", error.AsCString()); 1403 result.SetStatus (eReturnStatusFailed); 1404 } 1405 } 1406 else 1407 { 1408 result.AppendErrorWithFormat("'%s' takes no arguments:\nUsage: %s\n", 1409 m_cmd_name.c_str(), 1410 m_cmd_syntax.c_str()); 1411 result.SetStatus (eReturnStatusFailed); 1412 } 1413 return result.Succeeded(); 1414 } 1415 }; 1416 1417 //------------------------------------------------------------------------- 1418 // CommandObjectProcessStatus 1419 //------------------------------------------------------------------------- 1420 #pragma mark CommandObjectProcessStatus 1421 1422 class CommandObjectProcessStatus : public CommandObjectParsed 1423 { 1424 public: 1425 CommandObjectProcessStatus (CommandInterpreter &interpreter) : 1426 CommandObjectParsed (interpreter, 1427 "process status", 1428 "Show the current status and location of executing process.", 1429 "process status", 1430 0) 1431 { 1432 } 1433 1434 ~CommandObjectProcessStatus() 1435 { 1436 } 1437 1438 1439 bool 1440 DoExecute (Args& command, CommandReturnObject &result) 1441 { 1442 Stream &strm = result.GetOutputStream(); 1443 result.SetStatus (eReturnStatusSuccessFinishNoResult); 1444 ExecutionContext exe_ctx(m_interpreter.GetExecutionContext()); 1445 Process *process = exe_ctx.GetProcessPtr(); 1446 if (process) 1447 { 1448 const bool only_threads_with_stop_reason = true; 1449 const uint32_t start_frame = 0; 1450 const uint32_t num_frames = 1; 1451 const uint32_t num_frames_with_source = 1; 1452 process->GetStatus(strm); 1453 process->GetThreadStatus (strm, 1454 only_threads_with_stop_reason, 1455 start_frame, 1456 num_frames, 1457 num_frames_with_source); 1458 1459 } 1460 else 1461 { 1462 result.AppendError ("No process."); 1463 result.SetStatus (eReturnStatusFailed); 1464 } 1465 return result.Succeeded(); 1466 } 1467 }; 1468 1469 //------------------------------------------------------------------------- 1470 // CommandObjectProcessHandle 1471 //------------------------------------------------------------------------- 1472 #pragma mark CommandObjectProcessHandle 1473 1474 class CommandObjectProcessHandle : public CommandObjectParsed 1475 { 1476 public: 1477 1478 class CommandOptions : public Options 1479 { 1480 public: 1481 1482 CommandOptions (CommandInterpreter &interpreter) : 1483 Options (interpreter) 1484 { 1485 OptionParsingStarting (); 1486 } 1487 1488 ~CommandOptions () 1489 { 1490 } 1491 1492 Error 1493 SetOptionValue (uint32_t option_idx, const char *option_arg) 1494 { 1495 Error error; 1496 char short_option = (char) m_getopt_table[option_idx].val; 1497 1498 switch (short_option) 1499 { 1500 case 's': 1501 stop = option_arg; 1502 break; 1503 case 'n': 1504 notify = option_arg; 1505 break; 1506 case 'p': 1507 pass = option_arg; 1508 break; 1509 default: 1510 error.SetErrorStringWithFormat("invalid short option character '%c'", short_option); 1511 break; 1512 } 1513 return error; 1514 } 1515 1516 void 1517 OptionParsingStarting () 1518 { 1519 stop.clear(); 1520 notify.clear(); 1521 pass.clear(); 1522 } 1523 1524 const OptionDefinition* 1525 GetDefinitions () 1526 { 1527 return g_option_table; 1528 } 1529 1530 // Options table: Required for subclasses of Options. 1531 1532 static OptionDefinition g_option_table[]; 1533 1534 // Instance variables to hold the values for command options. 1535 1536 std::string stop; 1537 std::string notify; 1538 std::string pass; 1539 }; 1540 1541 1542 CommandObjectProcessHandle (CommandInterpreter &interpreter) : 1543 CommandObjectParsed (interpreter, 1544 "process handle", 1545 "Show or update what the process and debugger should do with various signals received from the OS.", 1546 NULL), 1547 m_options (interpreter) 1548 { 1549 SetHelpLong ("If no signals are specified, update them all. If no update option is specified, list the current values.\n"); 1550 CommandArgumentEntry arg; 1551 CommandArgumentData signal_arg; 1552 1553 signal_arg.arg_type = eArgTypeUnixSignal; 1554 signal_arg.arg_repetition = eArgRepeatStar; 1555 1556 arg.push_back (signal_arg); 1557 1558 m_arguments.push_back (arg); 1559 } 1560 1561 ~CommandObjectProcessHandle () 1562 { 1563 } 1564 1565 Options * 1566 GetOptions () 1567 { 1568 return &m_options; 1569 } 1570 1571 bool 1572 VerifyCommandOptionValue (const std::string &option, int &real_value) 1573 { 1574 bool okay = true; 1575 1576 bool success = false; 1577 bool tmp_value = Args::StringToBoolean (option.c_str(), false, &success); 1578 1579 if (success && tmp_value) 1580 real_value = 1; 1581 else if (success && !tmp_value) 1582 real_value = 0; 1583 else 1584 { 1585 // If the value isn't 'true' or 'false', it had better be 0 or 1. 1586 real_value = Args::StringToUInt32 (option.c_str(), 3); 1587 if (real_value != 0 && real_value != 1) 1588 okay = false; 1589 } 1590 1591 return okay; 1592 } 1593 1594 void 1595 PrintSignalHeader (Stream &str) 1596 { 1597 str.Printf ("NAME PASS STOP NOTIFY\n"); 1598 str.Printf ("========== ===== ===== ======\n"); 1599 } 1600 1601 void 1602 PrintSignal (Stream &str, int32_t signo, const char *sig_name, UnixSignals &signals) 1603 { 1604 bool stop; 1605 bool suppress; 1606 bool notify; 1607 1608 str.Printf ("%-10s ", sig_name); 1609 if (signals.GetSignalInfo (signo, suppress, stop, notify)) 1610 { 1611 bool pass = !suppress; 1612 str.Printf ("%s %s %s", 1613 (pass ? "true " : "false"), 1614 (stop ? "true " : "false"), 1615 (notify ? "true " : "false")); 1616 } 1617 str.Printf ("\n"); 1618 } 1619 1620 void 1621 PrintSignalInformation (Stream &str, Args &signal_args, int num_valid_signals, UnixSignals &signals) 1622 { 1623 PrintSignalHeader (str); 1624 1625 if (num_valid_signals > 0) 1626 { 1627 size_t num_args = signal_args.GetArgumentCount(); 1628 for (size_t i = 0; i < num_args; ++i) 1629 { 1630 int32_t signo = signals.GetSignalNumberFromName (signal_args.GetArgumentAtIndex (i)); 1631 if (signo != LLDB_INVALID_SIGNAL_NUMBER) 1632 PrintSignal (str, signo, signal_args.GetArgumentAtIndex (i), signals); 1633 } 1634 } 1635 else // Print info for ALL signals 1636 { 1637 int32_t signo = signals.GetFirstSignalNumber(); 1638 while (signo != LLDB_INVALID_SIGNAL_NUMBER) 1639 { 1640 PrintSignal (str, signo, signals.GetSignalAsCString (signo), signals); 1641 signo = signals.GetNextSignalNumber (signo); 1642 } 1643 } 1644 } 1645 1646 protected: 1647 bool 1648 DoExecute (Args &signal_args, CommandReturnObject &result) 1649 { 1650 TargetSP target_sp = m_interpreter.GetDebugger().GetSelectedTarget(); 1651 1652 if (!target_sp) 1653 { 1654 result.AppendError ("No current target;" 1655 " cannot handle signals until you have a valid target and process.\n"); 1656 result.SetStatus (eReturnStatusFailed); 1657 return false; 1658 } 1659 1660 ProcessSP process_sp = target_sp->GetProcessSP(); 1661 1662 if (!process_sp) 1663 { 1664 result.AppendError ("No current process; cannot handle signals until you have a valid process.\n"); 1665 result.SetStatus (eReturnStatusFailed); 1666 return false; 1667 } 1668 1669 int stop_action = -1; // -1 means leave the current setting alone 1670 int pass_action = -1; // -1 means leave the current setting alone 1671 int notify_action = -1; // -1 means leave the current setting alone 1672 1673 if (! m_options.stop.empty() 1674 && ! VerifyCommandOptionValue (m_options.stop, stop_action)) 1675 { 1676 result.AppendError ("Invalid argument for command option --stop; must be true or false.\n"); 1677 result.SetStatus (eReturnStatusFailed); 1678 return false; 1679 } 1680 1681 if (! m_options.notify.empty() 1682 && ! VerifyCommandOptionValue (m_options.notify, notify_action)) 1683 { 1684 result.AppendError ("Invalid argument for command option --notify; must be true or false.\n"); 1685 result.SetStatus (eReturnStatusFailed); 1686 return false; 1687 } 1688 1689 if (! m_options.pass.empty() 1690 && ! VerifyCommandOptionValue (m_options.pass, pass_action)) 1691 { 1692 result.AppendError ("Invalid argument for command option --pass; must be true or false.\n"); 1693 result.SetStatus (eReturnStatusFailed); 1694 return false; 1695 } 1696 1697 size_t num_args = signal_args.GetArgumentCount(); 1698 UnixSignals &signals = process_sp->GetUnixSignals(); 1699 int num_signals_set = 0; 1700 1701 if (num_args > 0) 1702 { 1703 for (size_t i = 0; i < num_args; ++i) 1704 { 1705 int32_t signo = signals.GetSignalNumberFromName (signal_args.GetArgumentAtIndex (i)); 1706 if (signo != LLDB_INVALID_SIGNAL_NUMBER) 1707 { 1708 // Casting the actions as bools here should be okay, because VerifyCommandOptionValue guarantees 1709 // the value is either 0 or 1. 1710 if (stop_action != -1) 1711 signals.SetShouldStop (signo, (bool) stop_action); 1712 if (pass_action != -1) 1713 { 1714 bool suppress = ! ((bool) pass_action); 1715 signals.SetShouldSuppress (signo, suppress); 1716 } 1717 if (notify_action != -1) 1718 signals.SetShouldNotify (signo, (bool) notify_action); 1719 ++num_signals_set; 1720 } 1721 else 1722 { 1723 result.AppendErrorWithFormat ("Invalid signal name '%s'\n", signal_args.GetArgumentAtIndex (i)); 1724 } 1725 } 1726 } 1727 else 1728 { 1729 // No signal specified, if any command options were specified, update ALL signals. 1730 if ((notify_action != -1) || (stop_action != -1) || (pass_action != -1)) 1731 { 1732 if (m_interpreter.Confirm ("Do you really want to update all the signals?", false)) 1733 { 1734 int32_t signo = signals.GetFirstSignalNumber(); 1735 while (signo != LLDB_INVALID_SIGNAL_NUMBER) 1736 { 1737 if (notify_action != -1) 1738 signals.SetShouldNotify (signo, (bool) notify_action); 1739 if (stop_action != -1) 1740 signals.SetShouldStop (signo, (bool) stop_action); 1741 if (pass_action != -1) 1742 { 1743 bool suppress = ! ((bool) pass_action); 1744 signals.SetShouldSuppress (signo, suppress); 1745 } 1746 signo = signals.GetNextSignalNumber (signo); 1747 } 1748 } 1749 } 1750 } 1751 1752 PrintSignalInformation (result.GetOutputStream(), signal_args, num_signals_set, signals); 1753 1754 if (num_signals_set > 0) 1755 result.SetStatus (eReturnStatusSuccessFinishNoResult); 1756 else 1757 result.SetStatus (eReturnStatusFailed); 1758 1759 return result.Succeeded(); 1760 } 1761 1762 CommandOptions m_options; 1763 }; 1764 1765 OptionDefinition 1766 CommandObjectProcessHandle::CommandOptions::g_option_table[] = 1767 { 1768 { 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." }, 1769 { 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." }, 1770 { LLDB_OPT_SET_1, false, "pass", 'p', required_argument, NULL, 0, eArgTypeBoolean, "Whether or not the signal should be passed to the process." }, 1771 { 0, false, NULL, 0, 0, NULL, 0, eArgTypeNone, NULL } 1772 }; 1773 1774 //------------------------------------------------------------------------- 1775 // CommandObjectMultiwordProcess 1776 //------------------------------------------------------------------------- 1777 1778 CommandObjectMultiwordProcess::CommandObjectMultiwordProcess (CommandInterpreter &interpreter) : 1779 CommandObjectMultiword (interpreter, 1780 "process", 1781 "A set of commands for operating on a process.", 1782 "process <subcommand> [<subcommand-options>]") 1783 { 1784 LoadSubCommand ("attach", CommandObjectSP (new CommandObjectProcessAttach (interpreter))); 1785 LoadSubCommand ("launch", CommandObjectSP (new CommandObjectProcessLaunch (interpreter))); 1786 LoadSubCommand ("continue", CommandObjectSP (new CommandObjectProcessContinue (interpreter))); 1787 LoadSubCommand ("connect", CommandObjectSP (new CommandObjectProcessConnect (interpreter))); 1788 LoadSubCommand ("detach", CommandObjectSP (new CommandObjectProcessDetach (interpreter))); 1789 LoadSubCommand ("load", CommandObjectSP (new CommandObjectProcessLoad (interpreter))); 1790 LoadSubCommand ("unload", CommandObjectSP (new CommandObjectProcessUnload (interpreter))); 1791 LoadSubCommand ("signal", CommandObjectSP (new CommandObjectProcessSignal (interpreter))); 1792 LoadSubCommand ("handle", CommandObjectSP (new CommandObjectProcessHandle (interpreter))); 1793 LoadSubCommand ("status", CommandObjectSP (new CommandObjectProcessStatus (interpreter))); 1794 LoadSubCommand ("interrupt", CommandObjectSP (new CommandObjectProcessInterrupt (interpreter))); 1795 LoadSubCommand ("kill", CommandObjectSP (new CommandObjectProcessKill (interpreter))); 1796 } 1797 1798 CommandObjectMultiwordProcess::~CommandObjectMultiwordProcess () 1799 { 1800 } 1801 1802