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().GetTriple().getTriple().c_str()); 634 } 635 else if (old_arch_spec != target->GetArchitecture()) 636 { 637 result.AppendWarningWithFormat("Architecture changed from %s to %s.\n", 638 old_arch_spec.GetTriple().getTriple().c_str(), 639 target->GetArchitecture().GetTriple().getTriple().c_str()); 640 } 641 642 // This supports the use-case scenario of immediately continuing the process once attached. 643 if (m_options.attach_info.GetContinueOnceAttached()) 644 m_interpreter.HandleCommand("process continue", eLazyBoolNo, result); 645 } 646 return result.Succeeded(); 647 } 648 649 CommandOptions m_options; 650 }; 651 652 653 OptionDefinition 654 CommandObjectProcessAttach::CommandOptions::g_option_table[] = 655 { 656 { LLDB_OPT_SET_ALL, false, "continue",'c', no_argument, NULL, 0, eArgTypeNone, "Immediately continue the process once attached."}, 657 { LLDB_OPT_SET_ALL, false, "plugin", 'P', required_argument, NULL, 0, eArgTypePlugin, "Name of the process plugin you want to use."}, 658 { LLDB_OPT_SET_1, false, "pid", 'p', required_argument, NULL, 0, eArgTypePid, "The process ID of an existing process to attach to."}, 659 { LLDB_OPT_SET_2, false, "name", 'n', required_argument, NULL, 0, eArgTypeProcessName, "The name of the process to attach to."}, 660 { LLDB_OPT_SET_2, false, "include-existing", 'i', no_argument, NULL, 0, eArgTypeNone, "Include existing processes when doing attach -w."}, 661 { LLDB_OPT_SET_2, false, "waitfor", 'w', no_argument, NULL, 0, eArgTypeNone, "Wait for the process with <process-name> to launch."}, 662 { 0, false, NULL, 0, 0, NULL, 0, eArgTypeNone, NULL } 663 }; 664 665 //------------------------------------------------------------------------- 666 // CommandObjectProcessContinue 667 //------------------------------------------------------------------------- 668 #pragma mark CommandObjectProcessContinue 669 670 class CommandObjectProcessContinue : public CommandObjectParsed 671 { 672 public: 673 674 CommandObjectProcessContinue (CommandInterpreter &interpreter) : 675 CommandObjectParsed (interpreter, 676 "process continue", 677 "Continue execution of all threads in the current process.", 678 "process continue", 679 eFlagProcessMustBeLaunched | eFlagProcessMustBePaused), 680 m_options(interpreter) 681 { 682 } 683 684 685 ~CommandObjectProcessContinue () 686 { 687 } 688 689 protected: 690 691 class CommandOptions : public Options 692 { 693 public: 694 695 CommandOptions (CommandInterpreter &interpreter) : 696 Options(interpreter) 697 { 698 // Keep default values of all options in one place: OptionParsingStarting () 699 OptionParsingStarting (); 700 } 701 702 ~CommandOptions () 703 { 704 } 705 706 Error 707 SetOptionValue (uint32_t option_idx, const char *option_arg) 708 { 709 Error error; 710 char short_option = (char) m_getopt_table[option_idx].val; 711 bool success = false; 712 switch (short_option) 713 { 714 case 'i': 715 m_ignore = Args::StringToUInt32 (option_arg, 0, 0, &success); 716 if (!success) 717 error.SetErrorStringWithFormat ("invalid value for ignore option: \"%s\", should be a number.", option_arg); 718 break; 719 720 default: 721 error.SetErrorStringWithFormat("invalid short option character '%c'", short_option); 722 break; 723 } 724 return error; 725 } 726 727 void 728 OptionParsingStarting () 729 { 730 m_ignore = 0; 731 } 732 733 const OptionDefinition* 734 GetDefinitions () 735 { 736 return g_option_table; 737 } 738 739 // Options table: Required for subclasses of Options. 740 741 static OptionDefinition g_option_table[]; 742 743 uint32_t m_ignore; 744 }; 745 746 bool 747 DoExecute (Args& command, 748 CommandReturnObject &result) 749 { 750 Process *process = m_interpreter.GetExecutionContext().GetProcessPtr(); 751 bool synchronous_execution = m_interpreter.GetSynchronous (); 752 753 if (process == NULL) 754 { 755 result.AppendError ("no process to continue"); 756 result.SetStatus (eReturnStatusFailed); 757 return false; 758 } 759 760 StateType state = process->GetState(); 761 if (state == eStateStopped) 762 { 763 if (command.GetArgumentCount() != 0) 764 { 765 result.AppendErrorWithFormat ("The '%s' command does not take any arguments.\n", m_cmd_name.c_str()); 766 result.SetStatus (eReturnStatusFailed); 767 return false; 768 } 769 770 if (m_options.m_ignore > 0) 771 { 772 ThreadSP sel_thread_sp(process->GetThreadList().GetSelectedThread()); 773 if (sel_thread_sp) 774 { 775 StopInfoSP stop_info_sp = sel_thread_sp->GetStopInfo(); 776 if (stop_info_sp && stop_info_sp->GetStopReason() == eStopReasonBreakpoint) 777 { 778 uint64_t bp_site_id = stop_info_sp->GetValue(); 779 BreakpointSiteSP bp_site_sp(process->GetBreakpointSiteList().FindByID(bp_site_id)); 780 if (bp_site_sp) 781 { 782 uint32_t num_owners = bp_site_sp->GetNumberOfOwners(); 783 for (uint32_t i = 0; i < num_owners; i++) 784 { 785 Breakpoint &bp_ref = bp_site_sp->GetOwnerAtIndex(i)->GetBreakpoint(); 786 if (!bp_ref.IsInternal()) 787 { 788 bp_ref.SetIgnoreCount(m_options.m_ignore); 789 } 790 } 791 } 792 } 793 } 794 } 795 796 { // Scope for thread list mutex: 797 Mutex::Locker locker (process->GetThreadList().GetMutex()); 798 const uint32_t num_threads = process->GetThreadList().GetSize(); 799 800 // Set the actions that the threads should each take when resuming 801 for (uint32_t idx=0; idx<num_threads; ++idx) 802 { 803 process->GetThreadList().GetThreadAtIndex(idx)->SetResumeState (eStateRunning); 804 } 805 } 806 807 Error error(process->Resume()); 808 if (error.Success()) 809 { 810 result.AppendMessageWithFormat ("Process %llu resuming\n", process->GetID()); 811 if (synchronous_execution) 812 { 813 state = process->WaitForProcessToStop (NULL); 814 815 result.SetDidChangeProcessState (true); 816 result.AppendMessageWithFormat ("Process %llu %s\n", process->GetID(), StateAsCString (state)); 817 result.SetStatus (eReturnStatusSuccessFinishNoResult); 818 } 819 else 820 { 821 result.SetStatus (eReturnStatusSuccessContinuingNoResult); 822 } 823 } 824 else 825 { 826 result.AppendErrorWithFormat("Failed to resume process: %s.\n", error.AsCString()); 827 result.SetStatus (eReturnStatusFailed); 828 } 829 } 830 else 831 { 832 result.AppendErrorWithFormat ("Process cannot be continued from its current state (%s).\n", 833 StateAsCString(state)); 834 result.SetStatus (eReturnStatusFailed); 835 } 836 return result.Succeeded(); 837 } 838 839 Options * 840 GetOptions () 841 { 842 return &m_options; 843 } 844 845 CommandOptions m_options; 846 847 }; 848 849 OptionDefinition 850 CommandObjectProcessContinue::CommandOptions::g_option_table[] = 851 { 852 { LLDB_OPT_SET_ALL, false, "ignore-count",'i', required_argument, NULL, 0, eArgTypeUnsignedInteger, 853 "Ignore <N> crossings of the breakpoint (if it exists) for the currently selected thread."}, 854 { 0, false, NULL, 0, 0, NULL, 0, eArgTypeNone, NULL } 855 }; 856 857 //------------------------------------------------------------------------- 858 // CommandObjectProcessDetach 859 //------------------------------------------------------------------------- 860 #pragma mark CommandObjectProcessDetach 861 862 class CommandObjectProcessDetach : public CommandObjectParsed 863 { 864 public: 865 866 CommandObjectProcessDetach (CommandInterpreter &interpreter) : 867 CommandObjectParsed (interpreter, 868 "process detach", 869 "Detach from the current process being debugged.", 870 "process detach", 871 eFlagProcessMustBeLaunched) 872 { 873 } 874 875 ~CommandObjectProcessDetach () 876 { 877 } 878 879 protected: 880 bool 881 DoExecute (Args& command, 882 CommandReturnObject &result) 883 { 884 Process *process = m_interpreter.GetExecutionContext().GetProcessPtr(); 885 if (process == NULL) 886 { 887 result.AppendError ("must have a valid process in order to detach"); 888 result.SetStatus (eReturnStatusFailed); 889 return false; 890 } 891 892 result.AppendMessageWithFormat ("Detaching from process %llu\n", process->GetID()); 893 Error error (process->Detach()); 894 if (error.Success()) 895 { 896 result.SetStatus (eReturnStatusSuccessFinishResult); 897 } 898 else 899 { 900 result.AppendErrorWithFormat ("Detach failed: %s\n", error.AsCString()); 901 result.SetStatus (eReturnStatusFailed); 902 return false; 903 } 904 return result.Succeeded(); 905 } 906 }; 907 908 //------------------------------------------------------------------------- 909 // CommandObjectProcessConnect 910 //------------------------------------------------------------------------- 911 #pragma mark CommandObjectProcessConnect 912 913 class CommandObjectProcessConnect : public CommandObjectParsed 914 { 915 public: 916 917 class CommandOptions : public Options 918 { 919 public: 920 921 CommandOptions (CommandInterpreter &interpreter) : 922 Options(interpreter) 923 { 924 // Keep default values of all options in one place: OptionParsingStarting () 925 OptionParsingStarting (); 926 } 927 928 ~CommandOptions () 929 { 930 } 931 932 Error 933 SetOptionValue (uint32_t option_idx, const char *option_arg) 934 { 935 Error error; 936 char short_option = (char) m_getopt_table[option_idx].val; 937 938 switch (short_option) 939 { 940 case 'p': 941 plugin_name.assign (option_arg); 942 break; 943 944 default: 945 error.SetErrorStringWithFormat("invalid short option character '%c'", short_option); 946 break; 947 } 948 return error; 949 } 950 951 void 952 OptionParsingStarting () 953 { 954 plugin_name.clear(); 955 } 956 957 const OptionDefinition* 958 GetDefinitions () 959 { 960 return g_option_table; 961 } 962 963 // Options table: Required for subclasses of Options. 964 965 static OptionDefinition g_option_table[]; 966 967 // Instance variables to hold the values for command options. 968 969 std::string plugin_name; 970 }; 971 972 CommandObjectProcessConnect (CommandInterpreter &interpreter) : 973 CommandObjectParsed (interpreter, 974 "process connect", 975 "Connect to a remote debug service.", 976 "process connect <remote-url>", 977 0), 978 m_options (interpreter) 979 { 980 } 981 982 ~CommandObjectProcessConnect () 983 { 984 } 985 986 987 Options * 988 GetOptions () 989 { 990 return &m_options; 991 } 992 993 protected: 994 bool 995 DoExecute (Args& command, 996 CommandReturnObject &result) 997 { 998 999 TargetSP target_sp (m_interpreter.GetDebugger().GetSelectedTarget()); 1000 Error error; 1001 Process *process = m_interpreter.GetExecutionContext().GetProcessPtr(); 1002 if (process) 1003 { 1004 if (process->IsAlive()) 1005 { 1006 result.AppendErrorWithFormat ("Process %llu is currently being debugged, kill the process before connecting.\n", 1007 process->GetID()); 1008 result.SetStatus (eReturnStatusFailed); 1009 return false; 1010 } 1011 } 1012 1013 if (!target_sp) 1014 { 1015 // If there isn't a current target create one. 1016 FileSpec emptyFileSpec; 1017 1018 error = m_interpreter.GetDebugger().GetTargetList().CreateTarget (m_interpreter.GetDebugger(), 1019 emptyFileSpec, 1020 NULL, 1021 false, 1022 NULL, // No platform options 1023 target_sp); 1024 if (!target_sp || error.Fail()) 1025 { 1026 result.AppendError(error.AsCString("Error creating target")); 1027 result.SetStatus (eReturnStatusFailed); 1028 return false; 1029 } 1030 m_interpreter.GetDebugger().GetTargetList().SetSelectedTarget(target_sp.get()); 1031 } 1032 1033 if (command.GetArgumentCount() == 1) 1034 { 1035 const char *plugin_name = NULL; 1036 if (!m_options.plugin_name.empty()) 1037 plugin_name = m_options.plugin_name.c_str(); 1038 1039 const char *remote_url = command.GetArgumentAtIndex(0); 1040 process = target_sp->CreateProcess (m_interpreter.GetDebugger().GetListener(), plugin_name, NULL).get(); 1041 1042 if (process) 1043 { 1044 error = process->ConnectRemote (&process->GetTarget().GetDebugger().GetOutputStream(), remote_url); 1045 1046 if (error.Fail()) 1047 { 1048 result.AppendError(error.AsCString("Remote connect failed")); 1049 result.SetStatus (eReturnStatusFailed); 1050 target_sp->DeleteCurrentProcess(); 1051 return false; 1052 } 1053 } 1054 else 1055 { 1056 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", 1057 m_cmd_name.c_str()); 1058 result.SetStatus (eReturnStatusFailed); 1059 } 1060 } 1061 else 1062 { 1063 result.AppendErrorWithFormat ("'%s' takes exactly one argument:\nUsage: %s\n", 1064 m_cmd_name.c_str(), 1065 m_cmd_syntax.c_str()); 1066 result.SetStatus (eReturnStatusFailed); 1067 } 1068 return result.Succeeded(); 1069 } 1070 1071 CommandOptions m_options; 1072 }; 1073 1074 1075 OptionDefinition 1076 CommandObjectProcessConnect::CommandOptions::g_option_table[] = 1077 { 1078 { LLDB_OPT_SET_ALL, false, "plugin", 'p', required_argument, NULL, 0, eArgTypePlugin, "Name of the process plugin you want to use."}, 1079 { 0, false, NULL, 0 , 0, NULL, 0, eArgTypeNone, NULL } 1080 }; 1081 1082 //------------------------------------------------------------------------- 1083 // CommandObjectProcessLoad 1084 //------------------------------------------------------------------------- 1085 #pragma mark CommandObjectProcessLoad 1086 1087 class CommandObjectProcessLoad : public CommandObjectParsed 1088 { 1089 public: 1090 1091 CommandObjectProcessLoad (CommandInterpreter &interpreter) : 1092 CommandObjectParsed (interpreter, 1093 "process load", 1094 "Load a shared library into the current process.", 1095 "process load <filename> [<filename> ...]", 1096 eFlagProcessMustBeLaunched | eFlagProcessMustBePaused) 1097 { 1098 } 1099 1100 ~CommandObjectProcessLoad () 1101 { 1102 } 1103 1104 protected: 1105 bool 1106 DoExecute (Args& command, 1107 CommandReturnObject &result) 1108 { 1109 Process *process = m_interpreter.GetExecutionContext().GetProcessPtr(); 1110 if (process == NULL) 1111 { 1112 result.AppendError ("must have a valid process in order to load a shared library"); 1113 result.SetStatus (eReturnStatusFailed); 1114 return false; 1115 } 1116 1117 const uint32_t argc = command.GetArgumentCount(); 1118 1119 for (uint32_t i=0; i<argc; ++i) 1120 { 1121 Error error; 1122 const char *image_path = command.GetArgumentAtIndex(i); 1123 FileSpec image_spec (image_path, false); 1124 process->GetTarget().GetPlatform()->ResolveRemotePath(image_spec, image_spec); 1125 uint32_t image_token = process->LoadImage(image_spec, error); 1126 if (image_token != LLDB_INVALID_IMAGE_TOKEN) 1127 { 1128 result.AppendMessageWithFormat ("Loading \"%s\"...ok\nImage %u loaded.\n", image_path, image_token); 1129 result.SetStatus (eReturnStatusSuccessFinishResult); 1130 } 1131 else 1132 { 1133 result.AppendErrorWithFormat ("failed to load '%s': %s", image_path, error.AsCString()); 1134 result.SetStatus (eReturnStatusFailed); 1135 } 1136 } 1137 return result.Succeeded(); 1138 } 1139 }; 1140 1141 1142 //------------------------------------------------------------------------- 1143 // CommandObjectProcessUnload 1144 //------------------------------------------------------------------------- 1145 #pragma mark CommandObjectProcessUnload 1146 1147 class CommandObjectProcessUnload : public CommandObjectParsed 1148 { 1149 public: 1150 1151 CommandObjectProcessUnload (CommandInterpreter &interpreter) : 1152 CommandObjectParsed (interpreter, 1153 "process unload", 1154 "Unload a shared library from the current process using the index returned by a previous call to \"process load\".", 1155 "process unload <index>", 1156 eFlagProcessMustBeLaunched | eFlagProcessMustBePaused) 1157 { 1158 } 1159 1160 ~CommandObjectProcessUnload () 1161 { 1162 } 1163 1164 protected: 1165 bool 1166 DoExecute (Args& command, 1167 CommandReturnObject &result) 1168 { 1169 Process *process = m_interpreter.GetExecutionContext().GetProcessPtr(); 1170 if (process == NULL) 1171 { 1172 result.AppendError ("must have a valid process in order to load a shared library"); 1173 result.SetStatus (eReturnStatusFailed); 1174 return false; 1175 } 1176 1177 const uint32_t argc = command.GetArgumentCount(); 1178 1179 for (uint32_t i=0; i<argc; ++i) 1180 { 1181 const char *image_token_cstr = command.GetArgumentAtIndex(i); 1182 uint32_t image_token = Args::StringToUInt32(image_token_cstr, LLDB_INVALID_IMAGE_TOKEN, 0); 1183 if (image_token == LLDB_INVALID_IMAGE_TOKEN) 1184 { 1185 result.AppendErrorWithFormat ("invalid image index argument '%s'", image_token_cstr); 1186 result.SetStatus (eReturnStatusFailed); 1187 break; 1188 } 1189 else 1190 { 1191 Error error (process->UnloadImage(image_token)); 1192 if (error.Success()) 1193 { 1194 result.AppendMessageWithFormat ("Unloading shared library with index %u...ok\n", image_token); 1195 result.SetStatus (eReturnStatusSuccessFinishResult); 1196 } 1197 else 1198 { 1199 result.AppendErrorWithFormat ("failed to unload image: %s", error.AsCString()); 1200 result.SetStatus (eReturnStatusFailed); 1201 break; 1202 } 1203 } 1204 } 1205 return result.Succeeded(); 1206 } 1207 }; 1208 1209 //------------------------------------------------------------------------- 1210 // CommandObjectProcessSignal 1211 //------------------------------------------------------------------------- 1212 #pragma mark CommandObjectProcessSignal 1213 1214 class CommandObjectProcessSignal : public CommandObjectParsed 1215 { 1216 public: 1217 1218 CommandObjectProcessSignal (CommandInterpreter &interpreter) : 1219 CommandObjectParsed (interpreter, 1220 "process signal", 1221 "Send a UNIX signal to the current process being debugged.", 1222 NULL) 1223 { 1224 CommandArgumentEntry arg; 1225 CommandArgumentData signal_arg; 1226 1227 // Define the first (and only) variant of this arg. 1228 signal_arg.arg_type = eArgTypeUnixSignal; 1229 signal_arg.arg_repetition = eArgRepeatPlain; 1230 1231 // There is only one variant this argument could be; put it into the argument entry. 1232 arg.push_back (signal_arg); 1233 1234 // Push the data for the first argument into the m_arguments vector. 1235 m_arguments.push_back (arg); 1236 } 1237 1238 ~CommandObjectProcessSignal () 1239 { 1240 } 1241 1242 protected: 1243 bool 1244 DoExecute (Args& command, 1245 CommandReturnObject &result) 1246 { 1247 Process *process = m_interpreter.GetExecutionContext().GetProcessPtr(); 1248 if (process == NULL) 1249 { 1250 result.AppendError ("no process to signal"); 1251 result.SetStatus (eReturnStatusFailed); 1252 return false; 1253 } 1254 1255 if (command.GetArgumentCount() == 1) 1256 { 1257 int signo = LLDB_INVALID_SIGNAL_NUMBER; 1258 1259 const char *signal_name = command.GetArgumentAtIndex(0); 1260 if (::isxdigit (signal_name[0])) 1261 signo = Args::StringToSInt32(signal_name, LLDB_INVALID_SIGNAL_NUMBER, 0); 1262 else 1263 signo = process->GetUnixSignals().GetSignalNumberFromName (signal_name); 1264 1265 if (signo == LLDB_INVALID_SIGNAL_NUMBER) 1266 { 1267 result.AppendErrorWithFormat ("Invalid signal argument '%s'.\n", command.GetArgumentAtIndex(0)); 1268 result.SetStatus (eReturnStatusFailed); 1269 } 1270 else 1271 { 1272 Error error (process->Signal (signo)); 1273 if (error.Success()) 1274 { 1275 result.SetStatus (eReturnStatusSuccessFinishResult); 1276 } 1277 else 1278 { 1279 result.AppendErrorWithFormat ("Failed to send signal %i: %s\n", signo, error.AsCString()); 1280 result.SetStatus (eReturnStatusFailed); 1281 } 1282 } 1283 } 1284 else 1285 { 1286 result.AppendErrorWithFormat("'%s' takes exactly one signal number argument:\nUsage: %s\n", m_cmd_name.c_str(), 1287 m_cmd_syntax.c_str()); 1288 result.SetStatus (eReturnStatusFailed); 1289 } 1290 return result.Succeeded(); 1291 } 1292 }; 1293 1294 1295 //------------------------------------------------------------------------- 1296 // CommandObjectProcessInterrupt 1297 //------------------------------------------------------------------------- 1298 #pragma mark CommandObjectProcessInterrupt 1299 1300 class CommandObjectProcessInterrupt : public CommandObjectParsed 1301 { 1302 public: 1303 1304 1305 CommandObjectProcessInterrupt (CommandInterpreter &interpreter) : 1306 CommandObjectParsed (interpreter, 1307 "process interrupt", 1308 "Interrupt the current process being debugged.", 1309 "process interrupt", 1310 eFlagProcessMustBeLaunched) 1311 { 1312 } 1313 1314 ~CommandObjectProcessInterrupt () 1315 { 1316 } 1317 1318 protected: 1319 bool 1320 DoExecute (Args& command, 1321 CommandReturnObject &result) 1322 { 1323 Process *process = m_interpreter.GetExecutionContext().GetProcessPtr(); 1324 if (process == NULL) 1325 { 1326 result.AppendError ("no process to halt"); 1327 result.SetStatus (eReturnStatusFailed); 1328 return false; 1329 } 1330 1331 if (command.GetArgumentCount() == 0) 1332 { 1333 Error error(process->Halt ()); 1334 if (error.Success()) 1335 { 1336 result.SetStatus (eReturnStatusSuccessFinishResult); 1337 1338 // Maybe we should add a "SuspendThreadPlans so we 1339 // can halt, and keep in place all the current thread plans. 1340 process->GetThreadList().DiscardThreadPlans(); 1341 } 1342 else 1343 { 1344 result.AppendErrorWithFormat ("Failed to halt process: %s\n", error.AsCString()); 1345 result.SetStatus (eReturnStatusFailed); 1346 } 1347 } 1348 else 1349 { 1350 result.AppendErrorWithFormat("'%s' takes no arguments:\nUsage: %s\n", 1351 m_cmd_name.c_str(), 1352 m_cmd_syntax.c_str()); 1353 result.SetStatus (eReturnStatusFailed); 1354 } 1355 return result.Succeeded(); 1356 } 1357 }; 1358 1359 //------------------------------------------------------------------------- 1360 // CommandObjectProcessKill 1361 //------------------------------------------------------------------------- 1362 #pragma mark CommandObjectProcessKill 1363 1364 class CommandObjectProcessKill : public CommandObjectParsed 1365 { 1366 public: 1367 1368 CommandObjectProcessKill (CommandInterpreter &interpreter) : 1369 CommandObjectParsed (interpreter, 1370 "process kill", 1371 "Terminate the current process being debugged.", 1372 "process kill", 1373 eFlagProcessMustBeLaunched) 1374 { 1375 } 1376 1377 ~CommandObjectProcessKill () 1378 { 1379 } 1380 1381 protected: 1382 bool 1383 DoExecute (Args& command, 1384 CommandReturnObject &result) 1385 { 1386 Process *process = m_interpreter.GetExecutionContext().GetProcessPtr(); 1387 if (process == NULL) 1388 { 1389 result.AppendError ("no process to kill"); 1390 result.SetStatus (eReturnStatusFailed); 1391 return false; 1392 } 1393 1394 if (command.GetArgumentCount() == 0) 1395 { 1396 Error error (process->Destroy()); 1397 if (error.Success()) 1398 { 1399 result.SetStatus (eReturnStatusSuccessFinishResult); 1400 } 1401 else 1402 { 1403 result.AppendErrorWithFormat ("Failed to kill process: %s\n", error.AsCString()); 1404 result.SetStatus (eReturnStatusFailed); 1405 } 1406 } 1407 else 1408 { 1409 result.AppendErrorWithFormat("'%s' takes no arguments:\nUsage: %s\n", 1410 m_cmd_name.c_str(), 1411 m_cmd_syntax.c_str()); 1412 result.SetStatus (eReturnStatusFailed); 1413 } 1414 return result.Succeeded(); 1415 } 1416 }; 1417 1418 //------------------------------------------------------------------------- 1419 // CommandObjectProcessStatus 1420 //------------------------------------------------------------------------- 1421 #pragma mark CommandObjectProcessStatus 1422 1423 class CommandObjectProcessStatus : public CommandObjectParsed 1424 { 1425 public: 1426 CommandObjectProcessStatus (CommandInterpreter &interpreter) : 1427 CommandObjectParsed (interpreter, 1428 "process status", 1429 "Show the current status and location of executing process.", 1430 "process status", 1431 0) 1432 { 1433 } 1434 1435 ~CommandObjectProcessStatus() 1436 { 1437 } 1438 1439 1440 bool 1441 DoExecute (Args& command, CommandReturnObject &result) 1442 { 1443 Stream &strm = result.GetOutputStream(); 1444 result.SetStatus (eReturnStatusSuccessFinishNoResult); 1445 ExecutionContext exe_ctx(m_interpreter.GetExecutionContext()); 1446 Process *process = exe_ctx.GetProcessPtr(); 1447 if (process) 1448 { 1449 const bool only_threads_with_stop_reason = true; 1450 const uint32_t start_frame = 0; 1451 const uint32_t num_frames = 1; 1452 const uint32_t num_frames_with_source = 1; 1453 process->GetStatus(strm); 1454 process->GetThreadStatus (strm, 1455 only_threads_with_stop_reason, 1456 start_frame, 1457 num_frames, 1458 num_frames_with_source); 1459 1460 } 1461 else 1462 { 1463 result.AppendError ("No process."); 1464 result.SetStatus (eReturnStatusFailed); 1465 } 1466 return result.Succeeded(); 1467 } 1468 }; 1469 1470 //------------------------------------------------------------------------- 1471 // CommandObjectProcessHandle 1472 //------------------------------------------------------------------------- 1473 #pragma mark CommandObjectProcessHandle 1474 1475 class CommandObjectProcessHandle : public CommandObjectParsed 1476 { 1477 public: 1478 1479 class CommandOptions : public Options 1480 { 1481 public: 1482 1483 CommandOptions (CommandInterpreter &interpreter) : 1484 Options (interpreter) 1485 { 1486 OptionParsingStarting (); 1487 } 1488 1489 ~CommandOptions () 1490 { 1491 } 1492 1493 Error 1494 SetOptionValue (uint32_t option_idx, const char *option_arg) 1495 { 1496 Error error; 1497 char short_option = (char) m_getopt_table[option_idx].val; 1498 1499 switch (short_option) 1500 { 1501 case 's': 1502 stop = option_arg; 1503 break; 1504 case 'n': 1505 notify = option_arg; 1506 break; 1507 case 'p': 1508 pass = option_arg; 1509 break; 1510 default: 1511 error.SetErrorStringWithFormat("invalid short option character '%c'", short_option); 1512 break; 1513 } 1514 return error; 1515 } 1516 1517 void 1518 OptionParsingStarting () 1519 { 1520 stop.clear(); 1521 notify.clear(); 1522 pass.clear(); 1523 } 1524 1525 const OptionDefinition* 1526 GetDefinitions () 1527 { 1528 return g_option_table; 1529 } 1530 1531 // Options table: Required for subclasses of Options. 1532 1533 static OptionDefinition g_option_table[]; 1534 1535 // Instance variables to hold the values for command options. 1536 1537 std::string stop; 1538 std::string notify; 1539 std::string pass; 1540 }; 1541 1542 1543 CommandObjectProcessHandle (CommandInterpreter &interpreter) : 1544 CommandObjectParsed (interpreter, 1545 "process handle", 1546 "Show or update what the process and debugger should do with various signals received from the OS.", 1547 NULL), 1548 m_options (interpreter) 1549 { 1550 SetHelpLong ("If no signals are specified, update them all. If no update option is specified, list the current values.\n"); 1551 CommandArgumentEntry arg; 1552 CommandArgumentData signal_arg; 1553 1554 signal_arg.arg_type = eArgTypeUnixSignal; 1555 signal_arg.arg_repetition = eArgRepeatStar; 1556 1557 arg.push_back (signal_arg); 1558 1559 m_arguments.push_back (arg); 1560 } 1561 1562 ~CommandObjectProcessHandle () 1563 { 1564 } 1565 1566 Options * 1567 GetOptions () 1568 { 1569 return &m_options; 1570 } 1571 1572 bool 1573 VerifyCommandOptionValue (const std::string &option, int &real_value) 1574 { 1575 bool okay = true; 1576 1577 bool success = false; 1578 bool tmp_value = Args::StringToBoolean (option.c_str(), false, &success); 1579 1580 if (success && tmp_value) 1581 real_value = 1; 1582 else if (success && !tmp_value) 1583 real_value = 0; 1584 else 1585 { 1586 // If the value isn't 'true' or 'false', it had better be 0 or 1. 1587 real_value = Args::StringToUInt32 (option.c_str(), 3); 1588 if (real_value != 0 && real_value != 1) 1589 okay = false; 1590 } 1591 1592 return okay; 1593 } 1594 1595 void 1596 PrintSignalHeader (Stream &str) 1597 { 1598 str.Printf ("NAME PASS STOP NOTIFY\n"); 1599 str.Printf ("========== ===== ===== ======\n"); 1600 } 1601 1602 void 1603 PrintSignal (Stream &str, int32_t signo, const char *sig_name, UnixSignals &signals) 1604 { 1605 bool stop; 1606 bool suppress; 1607 bool notify; 1608 1609 str.Printf ("%-10s ", sig_name); 1610 if (signals.GetSignalInfo (signo, suppress, stop, notify)) 1611 { 1612 bool pass = !suppress; 1613 str.Printf ("%s %s %s", 1614 (pass ? "true " : "false"), 1615 (stop ? "true " : "false"), 1616 (notify ? "true " : "false")); 1617 } 1618 str.Printf ("\n"); 1619 } 1620 1621 void 1622 PrintSignalInformation (Stream &str, Args &signal_args, int num_valid_signals, UnixSignals &signals) 1623 { 1624 PrintSignalHeader (str); 1625 1626 if (num_valid_signals > 0) 1627 { 1628 size_t num_args = signal_args.GetArgumentCount(); 1629 for (size_t i = 0; i < num_args; ++i) 1630 { 1631 int32_t signo = signals.GetSignalNumberFromName (signal_args.GetArgumentAtIndex (i)); 1632 if (signo != LLDB_INVALID_SIGNAL_NUMBER) 1633 PrintSignal (str, signo, signal_args.GetArgumentAtIndex (i), signals); 1634 } 1635 } 1636 else // Print info for ALL signals 1637 { 1638 int32_t signo = signals.GetFirstSignalNumber(); 1639 while (signo != LLDB_INVALID_SIGNAL_NUMBER) 1640 { 1641 PrintSignal (str, signo, signals.GetSignalAsCString (signo), signals); 1642 signo = signals.GetNextSignalNumber (signo); 1643 } 1644 } 1645 } 1646 1647 protected: 1648 bool 1649 DoExecute (Args &signal_args, CommandReturnObject &result) 1650 { 1651 TargetSP target_sp = m_interpreter.GetDebugger().GetSelectedTarget(); 1652 1653 if (!target_sp) 1654 { 1655 result.AppendError ("No current target;" 1656 " cannot handle signals until you have a valid target and process.\n"); 1657 result.SetStatus (eReturnStatusFailed); 1658 return false; 1659 } 1660 1661 ProcessSP process_sp = target_sp->GetProcessSP(); 1662 1663 if (!process_sp) 1664 { 1665 result.AppendError ("No current process; cannot handle signals until you have a valid process.\n"); 1666 result.SetStatus (eReturnStatusFailed); 1667 return false; 1668 } 1669 1670 int stop_action = -1; // -1 means leave the current setting alone 1671 int pass_action = -1; // -1 means leave the current setting alone 1672 int notify_action = -1; // -1 means leave the current setting alone 1673 1674 if (! m_options.stop.empty() 1675 && ! VerifyCommandOptionValue (m_options.stop, stop_action)) 1676 { 1677 result.AppendError ("Invalid argument for command option --stop; must be true or false.\n"); 1678 result.SetStatus (eReturnStatusFailed); 1679 return false; 1680 } 1681 1682 if (! m_options.notify.empty() 1683 && ! VerifyCommandOptionValue (m_options.notify, notify_action)) 1684 { 1685 result.AppendError ("Invalid argument for command option --notify; must be true or false.\n"); 1686 result.SetStatus (eReturnStatusFailed); 1687 return false; 1688 } 1689 1690 if (! m_options.pass.empty() 1691 && ! VerifyCommandOptionValue (m_options.pass, pass_action)) 1692 { 1693 result.AppendError ("Invalid argument for command option --pass; must be true or false.\n"); 1694 result.SetStatus (eReturnStatusFailed); 1695 return false; 1696 } 1697 1698 size_t num_args = signal_args.GetArgumentCount(); 1699 UnixSignals &signals = process_sp->GetUnixSignals(); 1700 int num_signals_set = 0; 1701 1702 if (num_args > 0) 1703 { 1704 for (size_t i = 0; i < num_args; ++i) 1705 { 1706 int32_t signo = signals.GetSignalNumberFromName (signal_args.GetArgumentAtIndex (i)); 1707 if (signo != LLDB_INVALID_SIGNAL_NUMBER) 1708 { 1709 // Casting the actions as bools here should be okay, because VerifyCommandOptionValue guarantees 1710 // the value is either 0 or 1. 1711 if (stop_action != -1) 1712 signals.SetShouldStop (signo, (bool) stop_action); 1713 if (pass_action != -1) 1714 { 1715 bool suppress = ! ((bool) pass_action); 1716 signals.SetShouldSuppress (signo, suppress); 1717 } 1718 if (notify_action != -1) 1719 signals.SetShouldNotify (signo, (bool) notify_action); 1720 ++num_signals_set; 1721 } 1722 else 1723 { 1724 result.AppendErrorWithFormat ("Invalid signal name '%s'\n", signal_args.GetArgumentAtIndex (i)); 1725 } 1726 } 1727 } 1728 else 1729 { 1730 // No signal specified, if any command options were specified, update ALL signals. 1731 if ((notify_action != -1) || (stop_action != -1) || (pass_action != -1)) 1732 { 1733 if (m_interpreter.Confirm ("Do you really want to update all the signals?", false)) 1734 { 1735 int32_t signo = signals.GetFirstSignalNumber(); 1736 while (signo != LLDB_INVALID_SIGNAL_NUMBER) 1737 { 1738 if (notify_action != -1) 1739 signals.SetShouldNotify (signo, (bool) notify_action); 1740 if (stop_action != -1) 1741 signals.SetShouldStop (signo, (bool) stop_action); 1742 if (pass_action != -1) 1743 { 1744 bool suppress = ! ((bool) pass_action); 1745 signals.SetShouldSuppress (signo, suppress); 1746 } 1747 signo = signals.GetNextSignalNumber (signo); 1748 } 1749 } 1750 } 1751 } 1752 1753 PrintSignalInformation (result.GetOutputStream(), signal_args, num_signals_set, signals); 1754 1755 if (num_signals_set > 0) 1756 result.SetStatus (eReturnStatusSuccessFinishNoResult); 1757 else 1758 result.SetStatus (eReturnStatusFailed); 1759 1760 return result.Succeeded(); 1761 } 1762 1763 CommandOptions m_options; 1764 }; 1765 1766 OptionDefinition 1767 CommandObjectProcessHandle::CommandOptions::g_option_table[] = 1768 { 1769 { 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." }, 1770 { 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." }, 1771 { LLDB_OPT_SET_1, false, "pass", 'p', required_argument, NULL, 0, eArgTypeBoolean, "Whether or not the signal should be passed to the process." }, 1772 { 0, false, NULL, 0, 0, NULL, 0, eArgTypeNone, NULL } 1773 }; 1774 1775 //------------------------------------------------------------------------- 1776 // CommandObjectMultiwordProcess 1777 //------------------------------------------------------------------------- 1778 1779 CommandObjectMultiwordProcess::CommandObjectMultiwordProcess (CommandInterpreter &interpreter) : 1780 CommandObjectMultiword (interpreter, 1781 "process", 1782 "A set of commands for operating on a process.", 1783 "process <subcommand> [<subcommand-options>]") 1784 { 1785 LoadSubCommand ("attach", CommandObjectSP (new CommandObjectProcessAttach (interpreter))); 1786 LoadSubCommand ("launch", CommandObjectSP (new CommandObjectProcessLaunch (interpreter))); 1787 LoadSubCommand ("continue", CommandObjectSP (new CommandObjectProcessContinue (interpreter))); 1788 LoadSubCommand ("connect", CommandObjectSP (new CommandObjectProcessConnect (interpreter))); 1789 LoadSubCommand ("detach", CommandObjectSP (new CommandObjectProcessDetach (interpreter))); 1790 LoadSubCommand ("load", CommandObjectSP (new CommandObjectProcessLoad (interpreter))); 1791 LoadSubCommand ("unload", CommandObjectSP (new CommandObjectProcessUnload (interpreter))); 1792 LoadSubCommand ("signal", CommandObjectSP (new CommandObjectProcessSignal (interpreter))); 1793 LoadSubCommand ("handle", CommandObjectSP (new CommandObjectProcessHandle (interpreter))); 1794 LoadSubCommand ("status", CommandObjectSP (new CommandObjectProcessStatus (interpreter))); 1795 LoadSubCommand ("interrupt", CommandObjectSP (new CommandObjectProcessInterrupt (interpreter))); 1796 LoadSubCommand ("kill", CommandObjectSP (new CommandObjectProcessKill (interpreter))); 1797 } 1798 1799 CommandObjectMultiwordProcess::~CommandObjectMultiwordProcess () 1800 { 1801 } 1802 1803