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 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 // CommandObjectProcessPlugin 1083 //------------------------------------------------------------------------- 1084 #pragma mark CommandObjectProcessPlugin 1085 1086 class CommandObjectProcessPlugin : public CommandObjectProxy 1087 { 1088 public: 1089 1090 CommandObjectProcessPlugin (CommandInterpreter &interpreter) : 1091 CommandObjectProxy (interpreter, 1092 "process plugin", 1093 "Send a custom command to the current process plug-in.", 1094 "process plugin <args>", 1095 0) 1096 { 1097 } 1098 1099 ~CommandObjectProcessPlugin () 1100 { 1101 } 1102 1103 virtual CommandObject * 1104 GetProxyCommandObject() 1105 { 1106 Process *process = m_interpreter.GetExecutionContext().GetProcessPtr(); 1107 if (process) 1108 return process->GetPluginCommandObject(); 1109 return NULL; 1110 } 1111 }; 1112 1113 1114 //------------------------------------------------------------------------- 1115 // CommandObjectProcessLoad 1116 //------------------------------------------------------------------------- 1117 #pragma mark CommandObjectProcessLoad 1118 1119 class CommandObjectProcessLoad : public CommandObjectParsed 1120 { 1121 public: 1122 1123 CommandObjectProcessLoad (CommandInterpreter &interpreter) : 1124 CommandObjectParsed (interpreter, 1125 "process load", 1126 "Load a shared library into the current process.", 1127 "process load <filename> [<filename> ...]", 1128 eFlagProcessMustBeLaunched | eFlagProcessMustBePaused) 1129 { 1130 } 1131 1132 ~CommandObjectProcessLoad () 1133 { 1134 } 1135 1136 protected: 1137 bool 1138 DoExecute (Args& command, 1139 CommandReturnObject &result) 1140 { 1141 Process *process = m_interpreter.GetExecutionContext().GetProcessPtr(); 1142 if (process == NULL) 1143 { 1144 result.AppendError ("must have a valid process in order to load a shared library"); 1145 result.SetStatus (eReturnStatusFailed); 1146 return false; 1147 } 1148 1149 const uint32_t argc = command.GetArgumentCount(); 1150 1151 for (uint32_t i=0; i<argc; ++i) 1152 { 1153 Error error; 1154 const char *image_path = command.GetArgumentAtIndex(i); 1155 FileSpec image_spec (image_path, false); 1156 process->GetTarget().GetPlatform()->ResolveRemotePath(image_spec, image_spec); 1157 uint32_t image_token = process->LoadImage(image_spec, error); 1158 if (image_token != LLDB_INVALID_IMAGE_TOKEN) 1159 { 1160 result.AppendMessageWithFormat ("Loading \"%s\"...ok\nImage %u loaded.\n", image_path, image_token); 1161 result.SetStatus (eReturnStatusSuccessFinishResult); 1162 } 1163 else 1164 { 1165 result.AppendErrorWithFormat ("failed to load '%s': %s", image_path, error.AsCString()); 1166 result.SetStatus (eReturnStatusFailed); 1167 } 1168 } 1169 return result.Succeeded(); 1170 } 1171 }; 1172 1173 1174 //------------------------------------------------------------------------- 1175 // CommandObjectProcessUnload 1176 //------------------------------------------------------------------------- 1177 #pragma mark CommandObjectProcessUnload 1178 1179 class CommandObjectProcessUnload : public CommandObjectParsed 1180 { 1181 public: 1182 1183 CommandObjectProcessUnload (CommandInterpreter &interpreter) : 1184 CommandObjectParsed (interpreter, 1185 "process unload", 1186 "Unload a shared library from the current process using the index returned by a previous call to \"process load\".", 1187 "process unload <index>", 1188 eFlagProcessMustBeLaunched | eFlagProcessMustBePaused) 1189 { 1190 } 1191 1192 ~CommandObjectProcessUnload () 1193 { 1194 } 1195 1196 protected: 1197 bool 1198 DoExecute (Args& command, 1199 CommandReturnObject &result) 1200 { 1201 Process *process = m_interpreter.GetExecutionContext().GetProcessPtr(); 1202 if (process == NULL) 1203 { 1204 result.AppendError ("must have a valid process in order to load a shared library"); 1205 result.SetStatus (eReturnStatusFailed); 1206 return false; 1207 } 1208 1209 const uint32_t argc = command.GetArgumentCount(); 1210 1211 for (uint32_t i=0; i<argc; ++i) 1212 { 1213 const char *image_token_cstr = command.GetArgumentAtIndex(i); 1214 uint32_t image_token = Args::StringToUInt32(image_token_cstr, LLDB_INVALID_IMAGE_TOKEN, 0); 1215 if (image_token == LLDB_INVALID_IMAGE_TOKEN) 1216 { 1217 result.AppendErrorWithFormat ("invalid image index argument '%s'", image_token_cstr); 1218 result.SetStatus (eReturnStatusFailed); 1219 break; 1220 } 1221 else 1222 { 1223 Error error (process->UnloadImage(image_token)); 1224 if (error.Success()) 1225 { 1226 result.AppendMessageWithFormat ("Unloading shared library with index %u...ok\n", image_token); 1227 result.SetStatus (eReturnStatusSuccessFinishResult); 1228 } 1229 else 1230 { 1231 result.AppendErrorWithFormat ("failed to unload image: %s", error.AsCString()); 1232 result.SetStatus (eReturnStatusFailed); 1233 break; 1234 } 1235 } 1236 } 1237 return result.Succeeded(); 1238 } 1239 }; 1240 1241 //------------------------------------------------------------------------- 1242 // CommandObjectProcessSignal 1243 //------------------------------------------------------------------------- 1244 #pragma mark CommandObjectProcessSignal 1245 1246 class CommandObjectProcessSignal : public CommandObjectParsed 1247 { 1248 public: 1249 1250 CommandObjectProcessSignal (CommandInterpreter &interpreter) : 1251 CommandObjectParsed (interpreter, 1252 "process signal", 1253 "Send a UNIX signal to the current process being debugged.", 1254 NULL) 1255 { 1256 CommandArgumentEntry arg; 1257 CommandArgumentData signal_arg; 1258 1259 // Define the first (and only) variant of this arg. 1260 signal_arg.arg_type = eArgTypeUnixSignal; 1261 signal_arg.arg_repetition = eArgRepeatPlain; 1262 1263 // There is only one variant this argument could be; put it into the argument entry. 1264 arg.push_back (signal_arg); 1265 1266 // Push the data for the first argument into the m_arguments vector. 1267 m_arguments.push_back (arg); 1268 } 1269 1270 ~CommandObjectProcessSignal () 1271 { 1272 } 1273 1274 protected: 1275 bool 1276 DoExecute (Args& command, 1277 CommandReturnObject &result) 1278 { 1279 Process *process = m_interpreter.GetExecutionContext().GetProcessPtr(); 1280 if (process == NULL) 1281 { 1282 result.AppendError ("no process to signal"); 1283 result.SetStatus (eReturnStatusFailed); 1284 return false; 1285 } 1286 1287 if (command.GetArgumentCount() == 1) 1288 { 1289 int signo = LLDB_INVALID_SIGNAL_NUMBER; 1290 1291 const char *signal_name = command.GetArgumentAtIndex(0); 1292 if (::isxdigit (signal_name[0])) 1293 signo = Args::StringToSInt32(signal_name, LLDB_INVALID_SIGNAL_NUMBER, 0); 1294 else 1295 signo = process->GetUnixSignals().GetSignalNumberFromName (signal_name); 1296 1297 if (signo == LLDB_INVALID_SIGNAL_NUMBER) 1298 { 1299 result.AppendErrorWithFormat ("Invalid signal argument '%s'.\n", command.GetArgumentAtIndex(0)); 1300 result.SetStatus (eReturnStatusFailed); 1301 } 1302 else 1303 { 1304 Error error (process->Signal (signo)); 1305 if (error.Success()) 1306 { 1307 result.SetStatus (eReturnStatusSuccessFinishResult); 1308 } 1309 else 1310 { 1311 result.AppendErrorWithFormat ("Failed to send signal %i: %s\n", signo, error.AsCString()); 1312 result.SetStatus (eReturnStatusFailed); 1313 } 1314 } 1315 } 1316 else 1317 { 1318 result.AppendErrorWithFormat("'%s' takes exactly one signal number argument:\nUsage: %s\n", m_cmd_name.c_str(), 1319 m_cmd_syntax.c_str()); 1320 result.SetStatus (eReturnStatusFailed); 1321 } 1322 return result.Succeeded(); 1323 } 1324 }; 1325 1326 1327 //------------------------------------------------------------------------- 1328 // CommandObjectProcessInterrupt 1329 //------------------------------------------------------------------------- 1330 #pragma mark CommandObjectProcessInterrupt 1331 1332 class CommandObjectProcessInterrupt : public CommandObjectParsed 1333 { 1334 public: 1335 1336 1337 CommandObjectProcessInterrupt (CommandInterpreter &interpreter) : 1338 CommandObjectParsed (interpreter, 1339 "process interrupt", 1340 "Interrupt the current process being debugged.", 1341 "process interrupt", 1342 eFlagProcessMustBeLaunched) 1343 { 1344 } 1345 1346 ~CommandObjectProcessInterrupt () 1347 { 1348 } 1349 1350 protected: 1351 bool 1352 DoExecute (Args& command, 1353 CommandReturnObject &result) 1354 { 1355 Process *process = m_interpreter.GetExecutionContext().GetProcessPtr(); 1356 if (process == NULL) 1357 { 1358 result.AppendError ("no process to halt"); 1359 result.SetStatus (eReturnStatusFailed); 1360 return false; 1361 } 1362 1363 if (command.GetArgumentCount() == 0) 1364 { 1365 Error error(process->Halt ()); 1366 if (error.Success()) 1367 { 1368 result.SetStatus (eReturnStatusSuccessFinishResult); 1369 1370 // Maybe we should add a "SuspendThreadPlans so we 1371 // can halt, and keep in place all the current thread plans. 1372 process->GetThreadList().DiscardThreadPlans(); 1373 } 1374 else 1375 { 1376 result.AppendErrorWithFormat ("Failed to halt process: %s\n", error.AsCString()); 1377 result.SetStatus (eReturnStatusFailed); 1378 } 1379 } 1380 else 1381 { 1382 result.AppendErrorWithFormat("'%s' takes no arguments:\nUsage: %s\n", 1383 m_cmd_name.c_str(), 1384 m_cmd_syntax.c_str()); 1385 result.SetStatus (eReturnStatusFailed); 1386 } 1387 return result.Succeeded(); 1388 } 1389 }; 1390 1391 //------------------------------------------------------------------------- 1392 // CommandObjectProcessKill 1393 //------------------------------------------------------------------------- 1394 #pragma mark CommandObjectProcessKill 1395 1396 class CommandObjectProcessKill : public CommandObjectParsed 1397 { 1398 public: 1399 1400 CommandObjectProcessKill (CommandInterpreter &interpreter) : 1401 CommandObjectParsed (interpreter, 1402 "process kill", 1403 "Terminate the current process being debugged.", 1404 "process kill", 1405 eFlagProcessMustBeLaunched) 1406 { 1407 } 1408 1409 ~CommandObjectProcessKill () 1410 { 1411 } 1412 1413 protected: 1414 bool 1415 DoExecute (Args& command, 1416 CommandReturnObject &result) 1417 { 1418 Process *process = m_interpreter.GetExecutionContext().GetProcessPtr(); 1419 if (process == NULL) 1420 { 1421 result.AppendError ("no process to kill"); 1422 result.SetStatus (eReturnStatusFailed); 1423 return false; 1424 } 1425 1426 if (command.GetArgumentCount() == 0) 1427 { 1428 Error error (process->Destroy()); 1429 if (error.Success()) 1430 { 1431 result.SetStatus (eReturnStatusSuccessFinishResult); 1432 } 1433 else 1434 { 1435 result.AppendErrorWithFormat ("Failed to kill process: %s\n", error.AsCString()); 1436 result.SetStatus (eReturnStatusFailed); 1437 } 1438 } 1439 else 1440 { 1441 result.AppendErrorWithFormat("'%s' takes no arguments:\nUsage: %s\n", 1442 m_cmd_name.c_str(), 1443 m_cmd_syntax.c_str()); 1444 result.SetStatus (eReturnStatusFailed); 1445 } 1446 return result.Succeeded(); 1447 } 1448 }; 1449 1450 //------------------------------------------------------------------------- 1451 // CommandObjectProcessStatus 1452 //------------------------------------------------------------------------- 1453 #pragma mark CommandObjectProcessStatus 1454 1455 class CommandObjectProcessStatus : public CommandObjectParsed 1456 { 1457 public: 1458 CommandObjectProcessStatus (CommandInterpreter &interpreter) : 1459 CommandObjectParsed (interpreter, 1460 "process status", 1461 "Show the current status and location of executing process.", 1462 "process status", 1463 0) 1464 { 1465 } 1466 1467 ~CommandObjectProcessStatus() 1468 { 1469 } 1470 1471 1472 bool 1473 DoExecute (Args& command, CommandReturnObject &result) 1474 { 1475 Stream &strm = result.GetOutputStream(); 1476 result.SetStatus (eReturnStatusSuccessFinishNoResult); 1477 ExecutionContext exe_ctx(m_interpreter.GetExecutionContext()); 1478 Process *process = exe_ctx.GetProcessPtr(); 1479 if (process) 1480 { 1481 const bool only_threads_with_stop_reason = true; 1482 const uint32_t start_frame = 0; 1483 const uint32_t num_frames = 1; 1484 const uint32_t num_frames_with_source = 1; 1485 process->GetStatus(strm); 1486 process->GetThreadStatus (strm, 1487 only_threads_with_stop_reason, 1488 start_frame, 1489 num_frames, 1490 num_frames_with_source); 1491 1492 } 1493 else 1494 { 1495 result.AppendError ("No process."); 1496 result.SetStatus (eReturnStatusFailed); 1497 } 1498 return result.Succeeded(); 1499 } 1500 }; 1501 1502 //------------------------------------------------------------------------- 1503 // CommandObjectProcessHandle 1504 //------------------------------------------------------------------------- 1505 #pragma mark CommandObjectProcessHandle 1506 1507 class CommandObjectProcessHandle : public CommandObjectParsed 1508 { 1509 public: 1510 1511 class CommandOptions : public Options 1512 { 1513 public: 1514 1515 CommandOptions (CommandInterpreter &interpreter) : 1516 Options (interpreter) 1517 { 1518 OptionParsingStarting (); 1519 } 1520 1521 ~CommandOptions () 1522 { 1523 } 1524 1525 Error 1526 SetOptionValue (uint32_t option_idx, const char *option_arg) 1527 { 1528 Error error; 1529 char short_option = (char) m_getopt_table[option_idx].val; 1530 1531 switch (short_option) 1532 { 1533 case 's': 1534 stop = option_arg; 1535 break; 1536 case 'n': 1537 notify = option_arg; 1538 break; 1539 case 'p': 1540 pass = option_arg; 1541 break; 1542 default: 1543 error.SetErrorStringWithFormat("invalid short option character '%c'", short_option); 1544 break; 1545 } 1546 return error; 1547 } 1548 1549 void 1550 OptionParsingStarting () 1551 { 1552 stop.clear(); 1553 notify.clear(); 1554 pass.clear(); 1555 } 1556 1557 const OptionDefinition* 1558 GetDefinitions () 1559 { 1560 return g_option_table; 1561 } 1562 1563 // Options table: Required for subclasses of Options. 1564 1565 static OptionDefinition g_option_table[]; 1566 1567 // Instance variables to hold the values for command options. 1568 1569 std::string stop; 1570 std::string notify; 1571 std::string pass; 1572 }; 1573 1574 1575 CommandObjectProcessHandle (CommandInterpreter &interpreter) : 1576 CommandObjectParsed (interpreter, 1577 "process handle", 1578 "Show or update what the process and debugger should do with various signals received from the OS.", 1579 NULL), 1580 m_options (interpreter) 1581 { 1582 SetHelpLong ("If no signals are specified, update them all. If no update option is specified, list the current values.\n"); 1583 CommandArgumentEntry arg; 1584 CommandArgumentData signal_arg; 1585 1586 signal_arg.arg_type = eArgTypeUnixSignal; 1587 signal_arg.arg_repetition = eArgRepeatStar; 1588 1589 arg.push_back (signal_arg); 1590 1591 m_arguments.push_back (arg); 1592 } 1593 1594 ~CommandObjectProcessHandle () 1595 { 1596 } 1597 1598 Options * 1599 GetOptions () 1600 { 1601 return &m_options; 1602 } 1603 1604 bool 1605 VerifyCommandOptionValue (const std::string &option, int &real_value) 1606 { 1607 bool okay = true; 1608 1609 bool success = false; 1610 bool tmp_value = Args::StringToBoolean (option.c_str(), false, &success); 1611 1612 if (success && tmp_value) 1613 real_value = 1; 1614 else if (success && !tmp_value) 1615 real_value = 0; 1616 else 1617 { 1618 // If the value isn't 'true' or 'false', it had better be 0 or 1. 1619 real_value = Args::StringToUInt32 (option.c_str(), 3); 1620 if (real_value != 0 && real_value != 1) 1621 okay = false; 1622 } 1623 1624 return okay; 1625 } 1626 1627 void 1628 PrintSignalHeader (Stream &str) 1629 { 1630 str.Printf ("NAME PASS STOP NOTIFY\n"); 1631 str.Printf ("========== ===== ===== ======\n"); 1632 } 1633 1634 void 1635 PrintSignal (Stream &str, int32_t signo, const char *sig_name, UnixSignals &signals) 1636 { 1637 bool stop; 1638 bool suppress; 1639 bool notify; 1640 1641 str.Printf ("%-10s ", sig_name); 1642 if (signals.GetSignalInfo (signo, suppress, stop, notify)) 1643 { 1644 bool pass = !suppress; 1645 str.Printf ("%s %s %s", 1646 (pass ? "true " : "false"), 1647 (stop ? "true " : "false"), 1648 (notify ? "true " : "false")); 1649 } 1650 str.Printf ("\n"); 1651 } 1652 1653 void 1654 PrintSignalInformation (Stream &str, Args &signal_args, int num_valid_signals, UnixSignals &signals) 1655 { 1656 PrintSignalHeader (str); 1657 1658 if (num_valid_signals > 0) 1659 { 1660 size_t num_args = signal_args.GetArgumentCount(); 1661 for (size_t i = 0; i < num_args; ++i) 1662 { 1663 int32_t signo = signals.GetSignalNumberFromName (signal_args.GetArgumentAtIndex (i)); 1664 if (signo != LLDB_INVALID_SIGNAL_NUMBER) 1665 PrintSignal (str, signo, signal_args.GetArgumentAtIndex (i), signals); 1666 } 1667 } 1668 else // Print info for ALL signals 1669 { 1670 int32_t signo = signals.GetFirstSignalNumber(); 1671 while (signo != LLDB_INVALID_SIGNAL_NUMBER) 1672 { 1673 PrintSignal (str, signo, signals.GetSignalAsCString (signo), signals); 1674 signo = signals.GetNextSignalNumber (signo); 1675 } 1676 } 1677 } 1678 1679 protected: 1680 bool 1681 DoExecute (Args &signal_args, CommandReturnObject &result) 1682 { 1683 TargetSP target_sp = m_interpreter.GetDebugger().GetSelectedTarget(); 1684 1685 if (!target_sp) 1686 { 1687 result.AppendError ("No current target;" 1688 " cannot handle signals until you have a valid target and process.\n"); 1689 result.SetStatus (eReturnStatusFailed); 1690 return false; 1691 } 1692 1693 ProcessSP process_sp = target_sp->GetProcessSP(); 1694 1695 if (!process_sp) 1696 { 1697 result.AppendError ("No current process; cannot handle signals until you have a valid process.\n"); 1698 result.SetStatus (eReturnStatusFailed); 1699 return false; 1700 } 1701 1702 int stop_action = -1; // -1 means leave the current setting alone 1703 int pass_action = -1; // -1 means leave the current setting alone 1704 int notify_action = -1; // -1 means leave the current setting alone 1705 1706 if (! m_options.stop.empty() 1707 && ! VerifyCommandOptionValue (m_options.stop, stop_action)) 1708 { 1709 result.AppendError ("Invalid argument for command option --stop; must be true or false.\n"); 1710 result.SetStatus (eReturnStatusFailed); 1711 return false; 1712 } 1713 1714 if (! m_options.notify.empty() 1715 && ! VerifyCommandOptionValue (m_options.notify, notify_action)) 1716 { 1717 result.AppendError ("Invalid argument for command option --notify; must be true or false.\n"); 1718 result.SetStatus (eReturnStatusFailed); 1719 return false; 1720 } 1721 1722 if (! m_options.pass.empty() 1723 && ! VerifyCommandOptionValue (m_options.pass, pass_action)) 1724 { 1725 result.AppendError ("Invalid argument for command option --pass; must be true or false.\n"); 1726 result.SetStatus (eReturnStatusFailed); 1727 return false; 1728 } 1729 1730 size_t num_args = signal_args.GetArgumentCount(); 1731 UnixSignals &signals = process_sp->GetUnixSignals(); 1732 int num_signals_set = 0; 1733 1734 if (num_args > 0) 1735 { 1736 for (size_t i = 0; i < num_args; ++i) 1737 { 1738 int32_t signo = signals.GetSignalNumberFromName (signal_args.GetArgumentAtIndex (i)); 1739 if (signo != LLDB_INVALID_SIGNAL_NUMBER) 1740 { 1741 // Casting the actions as bools here should be okay, because VerifyCommandOptionValue guarantees 1742 // the value is either 0 or 1. 1743 if (stop_action != -1) 1744 signals.SetShouldStop (signo, (bool) stop_action); 1745 if (pass_action != -1) 1746 { 1747 bool suppress = ! ((bool) pass_action); 1748 signals.SetShouldSuppress (signo, suppress); 1749 } 1750 if (notify_action != -1) 1751 signals.SetShouldNotify (signo, (bool) notify_action); 1752 ++num_signals_set; 1753 } 1754 else 1755 { 1756 result.AppendErrorWithFormat ("Invalid signal name '%s'\n", signal_args.GetArgumentAtIndex (i)); 1757 } 1758 } 1759 } 1760 else 1761 { 1762 // No signal specified, if any command options were specified, update ALL signals. 1763 if ((notify_action != -1) || (stop_action != -1) || (pass_action != -1)) 1764 { 1765 if (m_interpreter.Confirm ("Do you really want to update all the signals?", false)) 1766 { 1767 int32_t signo = signals.GetFirstSignalNumber(); 1768 while (signo != LLDB_INVALID_SIGNAL_NUMBER) 1769 { 1770 if (notify_action != -1) 1771 signals.SetShouldNotify (signo, (bool) notify_action); 1772 if (stop_action != -1) 1773 signals.SetShouldStop (signo, (bool) stop_action); 1774 if (pass_action != -1) 1775 { 1776 bool suppress = ! ((bool) pass_action); 1777 signals.SetShouldSuppress (signo, suppress); 1778 } 1779 signo = signals.GetNextSignalNumber (signo); 1780 } 1781 } 1782 } 1783 } 1784 1785 PrintSignalInformation (result.GetOutputStream(), signal_args, num_signals_set, signals); 1786 1787 if (num_signals_set > 0) 1788 result.SetStatus (eReturnStatusSuccessFinishNoResult); 1789 else 1790 result.SetStatus (eReturnStatusFailed); 1791 1792 return result.Succeeded(); 1793 } 1794 1795 CommandOptions m_options; 1796 }; 1797 1798 OptionDefinition 1799 CommandObjectProcessHandle::CommandOptions::g_option_table[] = 1800 { 1801 { 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." }, 1802 { 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." }, 1803 { LLDB_OPT_SET_1, false, "pass", 'p', required_argument, NULL, 0, eArgTypeBoolean, "Whether or not the signal should be passed to the process." }, 1804 { 0, false, NULL, 0, 0, NULL, 0, eArgTypeNone, NULL } 1805 }; 1806 1807 //------------------------------------------------------------------------- 1808 // CommandObjectMultiwordProcess 1809 //------------------------------------------------------------------------- 1810 1811 CommandObjectMultiwordProcess::CommandObjectMultiwordProcess (CommandInterpreter &interpreter) : 1812 CommandObjectMultiword (interpreter, 1813 "process", 1814 "A set of commands for operating on a process.", 1815 "process <subcommand> [<subcommand-options>]") 1816 { 1817 LoadSubCommand ("attach", CommandObjectSP (new CommandObjectProcessAttach (interpreter))); 1818 LoadSubCommand ("launch", CommandObjectSP (new CommandObjectProcessLaunch (interpreter))); 1819 LoadSubCommand ("continue", CommandObjectSP (new CommandObjectProcessContinue (interpreter))); 1820 LoadSubCommand ("connect", CommandObjectSP (new CommandObjectProcessConnect (interpreter))); 1821 LoadSubCommand ("detach", CommandObjectSP (new CommandObjectProcessDetach (interpreter))); 1822 LoadSubCommand ("load", CommandObjectSP (new CommandObjectProcessLoad (interpreter))); 1823 LoadSubCommand ("unload", CommandObjectSP (new CommandObjectProcessUnload (interpreter))); 1824 LoadSubCommand ("signal", CommandObjectSP (new CommandObjectProcessSignal (interpreter))); 1825 LoadSubCommand ("handle", CommandObjectSP (new CommandObjectProcessHandle (interpreter))); 1826 LoadSubCommand ("status", CommandObjectSP (new CommandObjectProcessStatus (interpreter))); 1827 LoadSubCommand ("interrupt", CommandObjectSP (new CommandObjectProcessInterrupt (interpreter))); 1828 LoadSubCommand ("kill", CommandObjectSP (new CommandObjectProcessKill (interpreter))); 1829 LoadSubCommand ("plugin", CommandObjectSP (new CommandObjectProcessPlugin (interpreter))); 1830 } 1831 1832 CommandObjectMultiwordProcess::~CommandObjectMultiwordProcess () 1833 { 1834 } 1835 1836