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 "lldb/lldb-python.h" 11 12 #include "CommandObjectProcess.h" 13 14 // C Includes 15 // C++ Includes 16 // Other libraries and framework includes 17 // Project includes 18 #include "lldb/Breakpoint/Breakpoint.h" 19 #include "lldb/Breakpoint/BreakpointLocation.h" 20 #include "lldb/Breakpoint/BreakpointSite.h" 21 #include "lldb/Core/State.h" 22 #include "lldb/Core/Module.h" 23 #include "lldb/Host/Host.h" 24 #include "lldb/Interpreter/Args.h" 25 #include "lldb/Interpreter/Options.h" 26 #include "lldb/Interpreter/CommandInterpreter.h" 27 #include "lldb/Interpreter/CommandReturnObject.h" 28 #include "lldb/Target/Platform.h" 29 #include "lldb/Target/Process.h" 30 #include "lldb/Target/StopInfo.h" 31 #include "lldb/Target/Target.h" 32 #include "lldb/Target/Thread.h" 33 34 using namespace lldb; 35 using namespace lldb_private; 36 37 class CommandObjectProcessLaunchOrAttach : public CommandObjectParsed 38 { 39 public: 40 CommandObjectProcessLaunchOrAttach (CommandInterpreter &interpreter, 41 const char *name, 42 const char *help, 43 const char *syntax, 44 uint32_t flags, 45 const char *new_process_action) : 46 CommandObjectParsed (interpreter, name, help, syntax, flags), 47 m_new_process_action (new_process_action) {} 48 49 virtual ~CommandObjectProcessLaunchOrAttach () {} 50 protected: 51 bool 52 StopProcessIfNecessary (Process *&process, StateType &state, CommandReturnObject &result) 53 { 54 state = eStateInvalid; 55 if (process) 56 { 57 state = process->GetState(); 58 59 if (process->IsAlive() && state != eStateConnected) 60 { 61 char message[1024]; 62 if (process->GetState() == eStateAttaching) 63 ::snprintf (message, sizeof(message), "There is a pending attach, abort it and %s?", m_new_process_action.c_str()); 64 else if (process->GetShouldDetach()) 65 ::snprintf (message, sizeof(message), "There is a running process, detach from it and %s?", m_new_process_action.c_str()); 66 else 67 ::snprintf (message, sizeof(message), "There is a running process, kill it and %s?", m_new_process_action.c_str()); 68 69 if (!m_interpreter.Confirm (message, true)) 70 { 71 result.SetStatus (eReturnStatusFailed); 72 return false; 73 } 74 else 75 { 76 if (process->GetShouldDetach()) 77 { 78 bool keep_stopped = false; 79 Error detach_error (process->Detach(keep_stopped)); 80 if (detach_error.Success()) 81 { 82 result.SetStatus (eReturnStatusSuccessFinishResult); 83 process = NULL; 84 } 85 else 86 { 87 result.AppendErrorWithFormat ("Failed to detach from process: %s\n", detach_error.AsCString()); 88 result.SetStatus (eReturnStatusFailed); 89 } 90 } 91 else 92 { 93 Error destroy_error (process->Destroy()); 94 if (destroy_error.Success()) 95 { 96 result.SetStatus (eReturnStatusSuccessFinishResult); 97 process = NULL; 98 } 99 else 100 { 101 result.AppendErrorWithFormat ("Failed to kill process: %s\n", destroy_error.AsCString()); 102 result.SetStatus (eReturnStatusFailed); 103 } 104 } 105 } 106 } 107 } 108 return result.Succeeded(); 109 } 110 std::string m_new_process_action; 111 }; 112 //------------------------------------------------------------------------- 113 // CommandObjectProcessLaunch 114 //------------------------------------------------------------------------- 115 #pragma mark CommandObjectProcessLaunch 116 class CommandObjectProcessLaunch : public CommandObjectProcessLaunchOrAttach 117 { 118 public: 119 120 CommandObjectProcessLaunch (CommandInterpreter &interpreter) : 121 CommandObjectProcessLaunchOrAttach (interpreter, 122 "process launch", 123 "Launch the executable in the debugger.", 124 NULL, 125 eFlagRequiresTarget, 126 "restart"), 127 m_options (interpreter) 128 { 129 CommandArgumentEntry arg; 130 CommandArgumentData run_args_arg; 131 132 // Define the first (and only) variant of this arg. 133 run_args_arg.arg_type = eArgTypeRunArgs; 134 run_args_arg.arg_repetition = eArgRepeatOptional; 135 136 // There is only one variant this argument could be; put it into the argument entry. 137 arg.push_back (run_args_arg); 138 139 // Push the data for the first argument into the m_arguments vector. 140 m_arguments.push_back (arg); 141 } 142 143 144 ~CommandObjectProcessLaunch () 145 { 146 } 147 148 virtual int 149 HandleArgumentCompletion (Args &input, 150 int &cursor_index, 151 int &cursor_char_position, 152 OptionElementVector &opt_element_vector, 153 int match_start_point, 154 int max_return_elements, 155 bool &word_complete, 156 StringList &matches) 157 { 158 std::string completion_str (input.GetArgumentAtIndex(cursor_index)); 159 completion_str.erase (cursor_char_position); 160 161 CommandCompletions::InvokeCommonCompletionCallbacks (m_interpreter, 162 CommandCompletions::eDiskFileCompletion, 163 completion_str.c_str(), 164 match_start_point, 165 max_return_elements, 166 NULL, 167 word_complete, 168 matches); 169 return matches.GetSize(); 170 } 171 172 Options * 173 GetOptions () 174 { 175 return &m_options; 176 } 177 178 virtual const char *GetRepeatCommand (Args ¤t_command_args, uint32_t index) 179 { 180 // No repeat for "process launch"... 181 return ""; 182 } 183 184 protected: 185 bool 186 DoExecute (Args& launch_args, CommandReturnObject &result) 187 { 188 Debugger &debugger = m_interpreter.GetDebugger(); 189 Target *target = debugger.GetSelectedTarget().get(); 190 Error error; 191 // If our listener is NULL, users aren't allows to launch 192 char filename[PATH_MAX]; 193 const Module *exe_module = target->GetExecutableModulePointer(); 194 195 if (exe_module == NULL) 196 { 197 result.AppendError ("no file in target, create a debug target using the 'target create' command"); 198 result.SetStatus (eReturnStatusFailed); 199 return false; 200 } 201 202 StateType state = eStateInvalid; 203 Process *process = m_exe_ctx.GetProcessPtr(); 204 205 if (!StopProcessIfNecessary(process, state, result)) 206 return false; 207 208 const char *target_settings_argv0 = target->GetArg0(); 209 210 exe_module->GetFileSpec().GetPath (filename, sizeof(filename)); 211 212 if (target_settings_argv0) 213 { 214 m_options.launch_info.GetArguments().AppendArgument (target_settings_argv0); 215 m_options.launch_info.SetExecutableFile(exe_module->GetPlatformFileSpec(), false); 216 } 217 else 218 { 219 m_options.launch_info.SetExecutableFile(exe_module->GetPlatformFileSpec(), true); 220 } 221 222 if (launch_args.GetArgumentCount() == 0) 223 { 224 Args target_setting_args; 225 if (target->GetRunArguments(target_setting_args)) 226 m_options.launch_info.GetArguments().AppendArguments (target_setting_args); 227 } 228 else 229 { 230 m_options.launch_info.GetArguments().AppendArguments (launch_args); 231 232 // Save the arguments for subsequent runs in the current target. 233 target->SetRunArguments (launch_args); 234 } 235 236 if (target->GetDisableASLR()) 237 m_options.launch_info.GetFlags().Set (eLaunchFlagDisableASLR); 238 239 if (target->GetDisableSTDIO()) 240 m_options.launch_info.GetFlags().Set (eLaunchFlagDisableSTDIO); 241 242 m_options.launch_info.GetFlags().Set (eLaunchFlagDebug); 243 244 Args environment; 245 target->GetEnvironmentAsArgs (environment); 246 if (environment.GetArgumentCount() > 0) 247 m_options.launch_info.GetEnvironmentEntries ().AppendArguments (environment); 248 249 // Get the value of synchronous execution here. If you wait till after you have started to 250 // run, then you could have hit a breakpoint, whose command might switch the value, and 251 // then you'll pick up that incorrect value. 252 bool synchronous_execution = m_interpreter.GetSynchronous (); 253 254 // Finalize the file actions, and if none were given, default to opening 255 // up a pseudo terminal 256 const bool default_to_use_pty = true; 257 m_options.launch_info.FinalizeFileActions (target, default_to_use_pty); 258 259 if (state == eStateConnected) 260 { 261 if (m_options.launch_info.GetFlags().Test (eLaunchFlagLaunchInTTY)) 262 { 263 result.AppendWarning("can't launch in tty when launching through a remote connection"); 264 m_options.launch_info.GetFlags().Clear (eLaunchFlagLaunchInTTY); 265 } 266 } 267 268 if (!m_options.launch_info.GetArchitecture().IsValid()) 269 m_options.launch_info.GetArchitecture() = target->GetArchitecture(); 270 271 PlatformSP platform_sp (target->GetPlatform()); 272 273 if (platform_sp && platform_sp->CanDebugProcess ()) 274 { 275 process = target->GetPlatform()->DebugProcess (m_options.launch_info, 276 debugger, 277 target, 278 debugger.GetListener(), 279 error).get(); 280 } 281 else 282 { 283 const char *plugin_name = m_options.launch_info.GetProcessPluginName(); 284 process = target->CreateProcess (debugger.GetListener(), plugin_name, NULL).get(); 285 if (process) 286 error = process->Launch (m_options.launch_info); 287 } 288 289 if (process == NULL) 290 { 291 result.SetError (error, "failed to launch or debug process"); 292 return false; 293 } 294 295 296 if (error.Success()) 297 { 298 const char *archname = exe_module->GetArchitecture().GetArchitectureName(); 299 300 result.AppendMessageWithFormat ("Process %" PRIu64 " launched: '%s' (%s)\n", process->GetID(), filename, archname); 301 result.SetDidChangeProcessState (true); 302 if (m_options.launch_info.GetFlags().Test(eLaunchFlagStopAtEntry) == false) 303 { 304 result.SetStatus (eReturnStatusSuccessContinuingNoResult); 305 StateType state = process->WaitForProcessToStop (NULL); 306 307 if (state == eStateStopped) 308 { 309 error = process->Resume(); 310 if (error.Success()) 311 { 312 if (synchronous_execution) 313 { 314 state = process->WaitForProcessToStop (NULL); 315 const bool must_be_alive = true; 316 if (!StateIsStoppedState(state, must_be_alive)) 317 { 318 result.AppendErrorWithFormat ("process isn't stopped: %s", StateAsCString(state)); 319 } 320 result.SetDidChangeProcessState (true); 321 result.SetStatus (eReturnStatusSuccessFinishResult); 322 } 323 else 324 { 325 result.SetStatus (eReturnStatusSuccessContinuingNoResult); 326 } 327 } 328 else 329 { 330 result.AppendErrorWithFormat ("process resume at entry point failed: %s", error.AsCString()); 331 result.SetStatus (eReturnStatusFailed); 332 } 333 } 334 else 335 { 336 result.AppendErrorWithFormat ("initial process state wasn't stopped: %s", StateAsCString(state)); 337 result.SetStatus (eReturnStatusFailed); 338 } 339 } 340 } 341 else 342 { 343 result.AppendErrorWithFormat ("process launch failed: %s", error.AsCString()); 344 result.SetStatus (eReturnStatusFailed); 345 } 346 347 return result.Succeeded(); 348 } 349 350 protected: 351 ProcessLaunchCommandOptions m_options; 352 }; 353 354 355 //#define SET1 LLDB_OPT_SET_1 356 //#define SET2 LLDB_OPT_SET_2 357 //#define SET3 LLDB_OPT_SET_3 358 // 359 //OptionDefinition 360 //CommandObjectProcessLaunch::CommandOptions::g_option_table[] = 361 //{ 362 //{ 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."}, 363 //{ SET1 , false, "stdin", 'i', required_argument, NULL, 0, eArgTypeDirectoryName, "Redirect stdin for the process to <path>."}, 364 //{ SET1 , false, "stdout", 'o', required_argument, NULL, 0, eArgTypeDirectoryName, "Redirect stdout for the process to <path>."}, 365 //{ SET1 , false, "stderr", 'e', required_argument, NULL, 0, eArgTypeDirectoryName, "Redirect stderr for the process to <path>."}, 366 //{ SET1 | SET2 | SET3, false, "plugin", 'p', required_argument, NULL, 0, eArgTypePlugin, "Name of the process plugin you want to use."}, 367 //{ SET2 , false, "tty", 't', optional_argument, NULL, 0, eArgTypeDirectoryName, "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."}, 368 //{ SET3, false, "no-stdio", 'n', no_argument, NULL, 0, eArgTypeNone, "Do not set up for terminal I/O to go to running process."}, 369 //{ SET1 | SET2 | SET3, false, "working-dir", 'w', required_argument, NULL, 0, eArgTypeDirectoryName, "Set the current working directory to <path> when running the inferior."}, 370 //{ 0, false, NULL, 0, 0, NULL, 0, eArgTypeNone, NULL } 371 //}; 372 // 373 //#undef SET1 374 //#undef SET2 375 //#undef SET3 376 377 //------------------------------------------------------------------------- 378 // CommandObjectProcessAttach 379 //------------------------------------------------------------------------- 380 #pragma mark CommandObjectProcessAttach 381 class CommandObjectProcessAttach : public CommandObjectProcessLaunchOrAttach 382 { 383 public: 384 385 class CommandOptions : public Options 386 { 387 public: 388 389 CommandOptions (CommandInterpreter &interpreter) : 390 Options(interpreter) 391 { 392 // Keep default values of all options in one place: OptionParsingStarting () 393 OptionParsingStarting (); 394 } 395 396 ~CommandOptions () 397 { 398 } 399 400 Error 401 SetOptionValue (uint32_t option_idx, const char *option_arg) 402 { 403 Error error; 404 const int short_option = m_getopt_table[option_idx].val; 405 bool success = false; 406 switch (short_option) 407 { 408 case 'c': 409 attach_info.SetContinueOnceAttached(true); 410 break; 411 412 case 'p': 413 { 414 lldb::pid_t pid = Args::StringToUInt32 (option_arg, LLDB_INVALID_PROCESS_ID, 0, &success); 415 if (!success || pid == LLDB_INVALID_PROCESS_ID) 416 { 417 error.SetErrorStringWithFormat("invalid process ID '%s'", option_arg); 418 } 419 else 420 { 421 attach_info.SetProcessID (pid); 422 } 423 } 424 break; 425 426 case 'P': 427 attach_info.SetProcessPluginName (option_arg); 428 break; 429 430 case 'n': 431 attach_info.GetExecutableFile().SetFile(option_arg, false); 432 break; 433 434 case 'w': 435 attach_info.SetWaitForLaunch(true); 436 break; 437 438 case 'i': 439 attach_info.SetIgnoreExisting(false); 440 break; 441 442 default: 443 error.SetErrorStringWithFormat("invalid short option character '%c'", short_option); 444 break; 445 } 446 return error; 447 } 448 449 void 450 OptionParsingStarting () 451 { 452 attach_info.Clear(); 453 } 454 455 const OptionDefinition* 456 GetDefinitions () 457 { 458 return g_option_table; 459 } 460 461 virtual bool 462 HandleOptionArgumentCompletion (Args &input, 463 int cursor_index, 464 int char_pos, 465 OptionElementVector &opt_element_vector, 466 int opt_element_index, 467 int match_start_point, 468 int max_return_elements, 469 bool &word_complete, 470 StringList &matches) 471 { 472 int opt_arg_pos = opt_element_vector[opt_element_index].opt_arg_pos; 473 int opt_defs_index = opt_element_vector[opt_element_index].opt_defs_index; 474 475 // We are only completing the name option for now... 476 477 const OptionDefinition *opt_defs = GetDefinitions(); 478 if (opt_defs[opt_defs_index].short_option == 'n') 479 { 480 // Are we in the name? 481 482 // Look to see if there is a -P argument provided, and if so use that plugin, otherwise 483 // use the default plugin. 484 485 const char *partial_name = NULL; 486 partial_name = input.GetArgumentAtIndex(opt_arg_pos); 487 488 PlatformSP platform_sp (m_interpreter.GetPlatform (true)); 489 if (platform_sp) 490 { 491 ProcessInstanceInfoList process_infos; 492 ProcessInstanceInfoMatch match_info; 493 if (partial_name) 494 { 495 match_info.GetProcessInfo().GetExecutableFile().SetFile(partial_name, false); 496 match_info.SetNameMatchType(eNameMatchStartsWith); 497 } 498 platform_sp->FindProcesses (match_info, process_infos); 499 const size_t num_matches = process_infos.GetSize(); 500 if (num_matches > 0) 501 { 502 for (size_t i=0; i<num_matches; ++i) 503 { 504 matches.AppendString (process_infos.GetProcessNameAtIndex(i), 505 process_infos.GetProcessNameLengthAtIndex(i)); 506 } 507 } 508 } 509 } 510 511 return false; 512 } 513 514 // Options table: Required for subclasses of Options. 515 516 static OptionDefinition g_option_table[]; 517 518 // Instance variables to hold the values for command options. 519 520 ProcessAttachInfo attach_info; 521 }; 522 523 CommandObjectProcessAttach (CommandInterpreter &interpreter) : 524 CommandObjectProcessLaunchOrAttach (interpreter, 525 "process attach", 526 "Attach to a process.", 527 "process attach <cmd-options>", 528 0, 529 "attach"), 530 m_options (interpreter) 531 { 532 } 533 534 ~CommandObjectProcessAttach () 535 { 536 } 537 538 Options * 539 GetOptions () 540 { 541 return &m_options; 542 } 543 544 protected: 545 bool 546 DoExecute (Args& command, 547 CommandReturnObject &result) 548 { 549 Target *target = m_interpreter.GetDebugger().GetSelectedTarget().get(); 550 // N.B. The attach should be synchronous. It doesn't help much to get the prompt back between initiating the attach 551 // and the target actually stopping. So even if the interpreter is set to be asynchronous, we wait for the stop 552 // ourselves here. 553 554 StateType state = eStateInvalid; 555 Process *process = m_exe_ctx.GetProcessPtr(); 556 557 if (!StopProcessIfNecessary (process, state, result)) 558 return false; 559 560 if (target == NULL) 561 { 562 // If there isn't a current target create one. 563 TargetSP new_target_sp; 564 Error error; 565 566 error = m_interpreter.GetDebugger().GetTargetList().CreateTarget (m_interpreter.GetDebugger(), 567 NULL, 568 NULL, 569 false, 570 NULL, // No platform options 571 new_target_sp); 572 target = new_target_sp.get(); 573 if (target == NULL || error.Fail()) 574 { 575 result.AppendError(error.AsCString("Error creating target")); 576 return false; 577 } 578 m_interpreter.GetDebugger().GetTargetList().SetSelectedTarget(target); 579 } 580 581 // Record the old executable module, we want to issue a warning if the process of attaching changed the 582 // current executable (like somebody said "file foo" then attached to a PID whose executable was bar.) 583 584 ModuleSP old_exec_module_sp = target->GetExecutableModule(); 585 ArchSpec old_arch_spec = target->GetArchitecture(); 586 587 if (command.GetArgumentCount()) 588 { 589 result.AppendErrorWithFormat("Invalid arguments for '%s'.\nUsage: %s\n", m_cmd_name.c_str(), m_cmd_syntax.c_str()); 590 result.SetStatus (eReturnStatusFailed); 591 } 592 else 593 { 594 if (state != eStateConnected) 595 { 596 const char *plugin_name = m_options.attach_info.GetProcessPluginName(); 597 process = target->CreateProcess (m_interpreter.GetDebugger().GetListener(), plugin_name, NULL).get(); 598 } 599 600 if (process) 601 { 602 Error error; 603 // If no process info was specified, then use the target executable 604 // name as the process to attach to by default 605 if (!m_options.attach_info.ProcessInfoSpecified ()) 606 { 607 if (old_exec_module_sp) 608 m_options.attach_info.GetExecutableFile().GetFilename() = old_exec_module_sp->GetPlatformFileSpec().GetFilename(); 609 610 if (!m_options.attach_info.ProcessInfoSpecified ()) 611 { 612 error.SetErrorString ("no process specified, create a target with a file, or specify the --pid or --name command option"); 613 } 614 } 615 616 if (error.Success()) 617 { 618 error = process->Attach (m_options.attach_info); 619 620 if (error.Success()) 621 { 622 result.SetStatus (eReturnStatusSuccessContinuingNoResult); 623 } 624 else 625 { 626 result.AppendErrorWithFormat ("attach failed: %s\n", error.AsCString()); 627 result.SetStatus (eReturnStatusFailed); 628 return false; 629 } 630 // If we're synchronous, wait for the stopped event and report that. 631 // Otherwise just return. 632 // FIXME: in the async case it will now be possible to get to the command 633 // interpreter with a state eStateAttaching. Make sure we handle that correctly. 634 StateType state = process->WaitForProcessToStop (NULL); 635 636 result.SetDidChangeProcessState (true); 637 638 if (state == eStateStopped) 639 { 640 result.AppendMessageWithFormat ("Process %" PRIu64 " %s\n", process->GetID(), StateAsCString (state)); 641 result.SetStatus (eReturnStatusSuccessFinishNoResult); 642 } 643 else 644 { 645 result.AppendError ("attach failed: process did not stop (no such process or permission problem?)"); 646 process->Destroy(); 647 result.SetStatus (eReturnStatusFailed); 648 return false; 649 } 650 } 651 } 652 } 653 654 if (result.Succeeded()) 655 { 656 // Okay, we're done. Last step is to warn if the executable module has changed: 657 char new_path[PATH_MAX]; 658 ModuleSP new_exec_module_sp (target->GetExecutableModule()); 659 if (!old_exec_module_sp) 660 { 661 // We might not have a module if we attached to a raw pid... 662 if (new_exec_module_sp) 663 { 664 new_exec_module_sp->GetFileSpec().GetPath(new_path, PATH_MAX); 665 result.AppendMessageWithFormat("Executable module set to \"%s\".\n", new_path); 666 } 667 } 668 else if (old_exec_module_sp->GetFileSpec() != new_exec_module_sp->GetFileSpec()) 669 { 670 char old_path[PATH_MAX]; 671 672 old_exec_module_sp->GetFileSpec().GetPath (old_path, PATH_MAX); 673 new_exec_module_sp->GetFileSpec().GetPath (new_path, PATH_MAX); 674 675 result.AppendWarningWithFormat("Executable module changed from \"%s\" to \"%s\".\n", 676 old_path, new_path); 677 } 678 679 if (!old_arch_spec.IsValid()) 680 { 681 result.AppendMessageWithFormat ("Architecture set to: %s.\n", target->GetArchitecture().GetTriple().getTriple().c_str()); 682 } 683 else if (!old_arch_spec.IsExactMatch(target->GetArchitecture())) 684 { 685 result.AppendWarningWithFormat("Architecture changed from %s to %s.\n", 686 old_arch_spec.GetTriple().getTriple().c_str(), 687 target->GetArchitecture().GetTriple().getTriple().c_str()); 688 } 689 690 // This supports the use-case scenario of immediately continuing the process once attached. 691 if (m_options.attach_info.GetContinueOnceAttached()) 692 m_interpreter.HandleCommand("process continue", eLazyBoolNo, result); 693 } 694 return result.Succeeded(); 695 } 696 697 CommandOptions m_options; 698 }; 699 700 701 OptionDefinition 702 CommandObjectProcessAttach::CommandOptions::g_option_table[] = 703 { 704 { LLDB_OPT_SET_ALL, false, "continue",'c', no_argument, NULL, 0, eArgTypeNone, "Immediately continue the process once attached."}, 705 { LLDB_OPT_SET_ALL, false, "plugin", 'P', required_argument, NULL, 0, eArgTypePlugin, "Name of the process plugin you want to use."}, 706 { LLDB_OPT_SET_1, false, "pid", 'p', required_argument, NULL, 0, eArgTypePid, "The process ID of an existing process to attach to."}, 707 { LLDB_OPT_SET_2, false, "name", 'n', required_argument, NULL, 0, eArgTypeProcessName, "The name of the process to attach to."}, 708 { LLDB_OPT_SET_2, false, "include-existing", 'i', no_argument, NULL, 0, eArgTypeNone, "Include existing processes when doing attach -w."}, 709 { LLDB_OPT_SET_2, false, "waitfor", 'w', no_argument, NULL, 0, eArgTypeNone, "Wait for the process with <process-name> to launch."}, 710 { 0, false, NULL, 0, 0, NULL, 0, eArgTypeNone, NULL } 711 }; 712 713 //------------------------------------------------------------------------- 714 // CommandObjectProcessContinue 715 //------------------------------------------------------------------------- 716 #pragma mark CommandObjectProcessContinue 717 718 class CommandObjectProcessContinue : public CommandObjectParsed 719 { 720 public: 721 722 CommandObjectProcessContinue (CommandInterpreter &interpreter) : 723 CommandObjectParsed (interpreter, 724 "process continue", 725 "Continue execution of all threads in the current process.", 726 "process continue", 727 eFlagRequiresProcess | 728 eFlagTryTargetAPILock | 729 eFlagProcessMustBeLaunched | 730 eFlagProcessMustBePaused ), 731 m_options(interpreter) 732 { 733 } 734 735 736 ~CommandObjectProcessContinue () 737 { 738 } 739 740 protected: 741 742 class CommandOptions : public Options 743 { 744 public: 745 746 CommandOptions (CommandInterpreter &interpreter) : 747 Options(interpreter) 748 { 749 // Keep default values of all options in one place: OptionParsingStarting () 750 OptionParsingStarting (); 751 } 752 753 ~CommandOptions () 754 { 755 } 756 757 Error 758 SetOptionValue (uint32_t option_idx, const char *option_arg) 759 { 760 Error error; 761 const int short_option = m_getopt_table[option_idx].val; 762 bool success = false; 763 switch (short_option) 764 { 765 case 'i': 766 m_ignore = Args::StringToUInt32 (option_arg, 0, 0, &success); 767 if (!success) 768 error.SetErrorStringWithFormat ("invalid value for ignore option: \"%s\", should be a number.", option_arg); 769 break; 770 771 default: 772 error.SetErrorStringWithFormat("invalid short option character '%c'", short_option); 773 break; 774 } 775 return error; 776 } 777 778 void 779 OptionParsingStarting () 780 { 781 m_ignore = 0; 782 } 783 784 const OptionDefinition* 785 GetDefinitions () 786 { 787 return g_option_table; 788 } 789 790 // Options table: Required for subclasses of Options. 791 792 static OptionDefinition g_option_table[]; 793 794 uint32_t m_ignore; 795 }; 796 797 bool 798 DoExecute (Args& command, CommandReturnObject &result) 799 { 800 Process *process = m_exe_ctx.GetProcessPtr(); 801 bool synchronous_execution = m_interpreter.GetSynchronous (); 802 StateType state = process->GetState(); 803 if (state == eStateStopped) 804 { 805 if (command.GetArgumentCount() != 0) 806 { 807 result.AppendErrorWithFormat ("The '%s' command does not take any arguments.\n", m_cmd_name.c_str()); 808 result.SetStatus (eReturnStatusFailed); 809 return false; 810 } 811 812 if (m_options.m_ignore > 0) 813 { 814 ThreadSP sel_thread_sp(process->GetThreadList().GetSelectedThread()); 815 if (sel_thread_sp) 816 { 817 StopInfoSP stop_info_sp = sel_thread_sp->GetStopInfo(); 818 if (stop_info_sp && stop_info_sp->GetStopReason() == eStopReasonBreakpoint) 819 { 820 lldb::break_id_t bp_site_id = (lldb::break_id_t)stop_info_sp->GetValue(); 821 BreakpointSiteSP bp_site_sp(process->GetBreakpointSiteList().FindByID(bp_site_id)); 822 if (bp_site_sp) 823 { 824 const size_t num_owners = bp_site_sp->GetNumberOfOwners(); 825 for (size_t i = 0; i < num_owners; i++) 826 { 827 Breakpoint &bp_ref = bp_site_sp->GetOwnerAtIndex(i)->GetBreakpoint(); 828 if (!bp_ref.IsInternal()) 829 { 830 bp_ref.SetIgnoreCount(m_options.m_ignore); 831 } 832 } 833 } 834 } 835 } 836 } 837 838 { // Scope for thread list mutex: 839 Mutex::Locker locker (process->GetThreadList().GetMutex()); 840 const uint32_t num_threads = process->GetThreadList().GetSize(); 841 842 // Set the actions that the threads should each take when resuming 843 for (uint32_t idx=0; idx<num_threads; ++idx) 844 { 845 process->GetThreadList().GetThreadAtIndex(idx)->SetResumeState (eStateRunning); 846 } 847 } 848 849 Error error(process->Resume()); 850 if (error.Success()) 851 { 852 result.AppendMessageWithFormat ("Process %" PRIu64 " resuming\n", process->GetID()); 853 if (synchronous_execution) 854 { 855 state = process->WaitForProcessToStop (NULL); 856 857 result.SetDidChangeProcessState (true); 858 result.AppendMessageWithFormat ("Process %" PRIu64 " %s\n", process->GetID(), StateAsCString (state)); 859 result.SetStatus (eReturnStatusSuccessFinishNoResult); 860 } 861 else 862 { 863 result.SetStatus (eReturnStatusSuccessContinuingNoResult); 864 } 865 } 866 else 867 { 868 result.AppendErrorWithFormat("Failed to resume process: %s.\n", error.AsCString()); 869 result.SetStatus (eReturnStatusFailed); 870 } 871 } 872 else 873 { 874 result.AppendErrorWithFormat ("Process cannot be continued from its current state (%s).\n", 875 StateAsCString(state)); 876 result.SetStatus (eReturnStatusFailed); 877 } 878 return result.Succeeded(); 879 } 880 881 Options * 882 GetOptions () 883 { 884 return &m_options; 885 } 886 887 CommandOptions m_options; 888 889 }; 890 891 OptionDefinition 892 CommandObjectProcessContinue::CommandOptions::g_option_table[] = 893 { 894 { LLDB_OPT_SET_ALL, false, "ignore-count",'i', required_argument, NULL, 0, eArgTypeUnsignedInteger, 895 "Ignore <N> crossings of the breakpoint (if it exists) for the currently selected thread."}, 896 { 0, false, NULL, 0, 0, NULL, 0, eArgTypeNone, NULL } 897 }; 898 899 //------------------------------------------------------------------------- 900 // CommandObjectProcessDetach 901 //------------------------------------------------------------------------- 902 #pragma mark CommandObjectProcessDetach 903 904 class CommandObjectProcessDetach : public CommandObjectParsed 905 { 906 public: 907 class CommandOptions : public Options 908 { 909 public: 910 911 CommandOptions (CommandInterpreter &interpreter) : 912 Options (interpreter) 913 { 914 OptionParsingStarting (); 915 } 916 917 ~CommandOptions () 918 { 919 } 920 921 Error 922 SetOptionValue (uint32_t option_idx, const char *option_arg) 923 { 924 Error error; 925 const int short_option = m_getopt_table[option_idx].val; 926 927 switch (short_option) 928 { 929 case 's': 930 bool tmp_result; 931 bool success; 932 tmp_result = Args::StringToBoolean(option_arg, false, &success); 933 if (!success) 934 error.SetErrorStringWithFormat("invalid boolean option: \"%s\"", option_arg); 935 else 936 { 937 if (tmp_result) 938 m_keep_stopped = eLazyBoolYes; 939 else 940 m_keep_stopped = eLazyBoolNo; 941 } 942 break; 943 default: 944 error.SetErrorStringWithFormat("invalid short option character '%c'", short_option); 945 break; 946 } 947 return error; 948 } 949 950 void 951 OptionParsingStarting () 952 { 953 m_keep_stopped = eLazyBoolCalculate; 954 } 955 956 const OptionDefinition* 957 GetDefinitions () 958 { 959 return g_option_table; 960 } 961 962 // Options table: Required for subclasses of Options. 963 964 static OptionDefinition g_option_table[]; 965 966 // Instance variables to hold the values for command options. 967 LazyBool m_keep_stopped; 968 }; 969 970 CommandObjectProcessDetach (CommandInterpreter &interpreter) : 971 CommandObjectParsed (interpreter, 972 "process detach", 973 "Detach from the current process being debugged.", 974 "process detach", 975 eFlagRequiresProcess | 976 eFlagTryTargetAPILock | 977 eFlagProcessMustBeLaunched), 978 m_options(interpreter) 979 { 980 } 981 982 ~CommandObjectProcessDetach () 983 { 984 } 985 986 Options * 987 GetOptions () 988 { 989 return &m_options; 990 } 991 992 993 protected: 994 bool 995 DoExecute (Args& command, CommandReturnObject &result) 996 { 997 Process *process = m_exe_ctx.GetProcessPtr(); 998 result.AppendMessageWithFormat ("Detaching from process %" PRIu64 "\n", process->GetID()); 999 // FIXME: This will be a Command Option: 1000 bool keep_stopped; 1001 if (m_options.m_keep_stopped == eLazyBoolCalculate) 1002 { 1003 // Check the process default: 1004 if (process->GetDetachKeepsStopped()) 1005 keep_stopped = true; 1006 else 1007 keep_stopped = false; 1008 } 1009 else if (m_options.m_keep_stopped == eLazyBoolYes) 1010 keep_stopped = true; 1011 else 1012 keep_stopped = false; 1013 1014 Error error (process->Detach(keep_stopped)); 1015 if (error.Success()) 1016 { 1017 result.SetStatus (eReturnStatusSuccessFinishResult); 1018 } 1019 else 1020 { 1021 result.AppendErrorWithFormat ("Detach failed: %s\n", error.AsCString()); 1022 result.SetStatus (eReturnStatusFailed); 1023 return false; 1024 } 1025 return result.Succeeded(); 1026 } 1027 1028 CommandOptions m_options; 1029 }; 1030 1031 OptionDefinition 1032 CommandObjectProcessDetach::CommandOptions::g_option_table[] = 1033 { 1034 { LLDB_OPT_SET_1, false, "keep-stopped", 's', required_argument, NULL, 0, eArgTypeBoolean, "Whether or not the process should be kept stopped on detach (if possible)." }, 1035 { 0, false, NULL, 0, 0, NULL, 0, eArgTypeNone, NULL } 1036 }; 1037 1038 //------------------------------------------------------------------------- 1039 // CommandObjectProcessConnect 1040 //------------------------------------------------------------------------- 1041 #pragma mark CommandObjectProcessConnect 1042 1043 class CommandObjectProcessConnect : public CommandObjectParsed 1044 { 1045 public: 1046 1047 class CommandOptions : public Options 1048 { 1049 public: 1050 1051 CommandOptions (CommandInterpreter &interpreter) : 1052 Options(interpreter) 1053 { 1054 // Keep default values of all options in one place: OptionParsingStarting () 1055 OptionParsingStarting (); 1056 } 1057 1058 ~CommandOptions () 1059 { 1060 } 1061 1062 Error 1063 SetOptionValue (uint32_t option_idx, const char *option_arg) 1064 { 1065 Error error; 1066 const int short_option = m_getopt_table[option_idx].val; 1067 1068 switch (short_option) 1069 { 1070 case 'p': 1071 plugin_name.assign (option_arg); 1072 break; 1073 1074 default: 1075 error.SetErrorStringWithFormat("invalid short option character '%c'", short_option); 1076 break; 1077 } 1078 return error; 1079 } 1080 1081 void 1082 OptionParsingStarting () 1083 { 1084 plugin_name.clear(); 1085 } 1086 1087 const OptionDefinition* 1088 GetDefinitions () 1089 { 1090 return g_option_table; 1091 } 1092 1093 // Options table: Required for subclasses of Options. 1094 1095 static OptionDefinition g_option_table[]; 1096 1097 // Instance variables to hold the values for command options. 1098 1099 std::string plugin_name; 1100 }; 1101 1102 CommandObjectProcessConnect (CommandInterpreter &interpreter) : 1103 CommandObjectParsed (interpreter, 1104 "process connect", 1105 "Connect to a remote debug service.", 1106 "process connect <remote-url>", 1107 0), 1108 m_options (interpreter) 1109 { 1110 } 1111 1112 ~CommandObjectProcessConnect () 1113 { 1114 } 1115 1116 1117 Options * 1118 GetOptions () 1119 { 1120 return &m_options; 1121 } 1122 1123 protected: 1124 bool 1125 DoExecute (Args& command, 1126 CommandReturnObject &result) 1127 { 1128 1129 TargetSP target_sp (m_interpreter.GetDebugger().GetSelectedTarget()); 1130 Error error; 1131 Process *process = m_exe_ctx.GetProcessPtr(); 1132 if (process) 1133 { 1134 if (process->IsAlive()) 1135 { 1136 result.AppendErrorWithFormat ("Process %" PRIu64 " is currently being debugged, kill the process before connecting.\n", 1137 process->GetID()); 1138 result.SetStatus (eReturnStatusFailed); 1139 return false; 1140 } 1141 } 1142 1143 if (!target_sp) 1144 { 1145 // If there isn't a current target create one. 1146 1147 error = m_interpreter.GetDebugger().GetTargetList().CreateTarget (m_interpreter.GetDebugger(), 1148 NULL, 1149 NULL, 1150 false, 1151 NULL, // No platform options 1152 target_sp); 1153 if (!target_sp || error.Fail()) 1154 { 1155 result.AppendError(error.AsCString("Error creating target")); 1156 result.SetStatus (eReturnStatusFailed); 1157 return false; 1158 } 1159 m_interpreter.GetDebugger().GetTargetList().SetSelectedTarget(target_sp.get()); 1160 } 1161 1162 if (command.GetArgumentCount() == 1) 1163 { 1164 const char *plugin_name = NULL; 1165 if (!m_options.plugin_name.empty()) 1166 plugin_name = m_options.plugin_name.c_str(); 1167 1168 const char *remote_url = command.GetArgumentAtIndex(0); 1169 process = target_sp->CreateProcess (m_interpreter.GetDebugger().GetListener(), plugin_name, NULL).get(); 1170 1171 if (process) 1172 { 1173 error = process->ConnectRemote (&process->GetTarget().GetDebugger().GetOutputStream(), remote_url); 1174 1175 if (error.Fail()) 1176 { 1177 result.AppendError(error.AsCString("Remote connect failed")); 1178 result.SetStatus (eReturnStatusFailed); 1179 target_sp->DeleteCurrentProcess(); 1180 return false; 1181 } 1182 } 1183 else 1184 { 1185 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", 1186 remote_url); 1187 result.SetStatus (eReturnStatusFailed); 1188 } 1189 } 1190 else 1191 { 1192 result.AppendErrorWithFormat ("'%s' takes exactly one argument:\nUsage: %s\n", 1193 m_cmd_name.c_str(), 1194 m_cmd_syntax.c_str()); 1195 result.SetStatus (eReturnStatusFailed); 1196 } 1197 return result.Succeeded(); 1198 } 1199 1200 CommandOptions m_options; 1201 }; 1202 1203 OptionDefinition 1204 CommandObjectProcessConnect::CommandOptions::g_option_table[] = 1205 { 1206 { LLDB_OPT_SET_ALL, false, "plugin", 'p', required_argument, NULL, 0, eArgTypePlugin, "Name of the process plugin you want to use."}, 1207 { 0, false, NULL, 0 , 0, NULL, 0, eArgTypeNone, NULL } 1208 }; 1209 1210 //------------------------------------------------------------------------- 1211 // CommandObjectProcessPlugin 1212 //------------------------------------------------------------------------- 1213 #pragma mark CommandObjectProcessPlugin 1214 1215 class CommandObjectProcessPlugin : public CommandObjectProxy 1216 { 1217 public: 1218 1219 CommandObjectProcessPlugin (CommandInterpreter &interpreter) : 1220 CommandObjectProxy (interpreter, 1221 "process plugin", 1222 "Send a custom command to the current process plug-in.", 1223 "process plugin <args>", 1224 0) 1225 { 1226 } 1227 1228 ~CommandObjectProcessPlugin () 1229 { 1230 } 1231 1232 virtual CommandObject * 1233 GetProxyCommandObject() 1234 { 1235 Process *process = m_interpreter.GetExecutionContext().GetProcessPtr(); 1236 if (process) 1237 return process->GetPluginCommandObject(); 1238 return NULL; 1239 } 1240 }; 1241 1242 1243 //------------------------------------------------------------------------- 1244 // CommandObjectProcessLoad 1245 //------------------------------------------------------------------------- 1246 #pragma mark CommandObjectProcessLoad 1247 1248 class CommandObjectProcessLoad : public CommandObjectParsed 1249 { 1250 public: 1251 1252 CommandObjectProcessLoad (CommandInterpreter &interpreter) : 1253 CommandObjectParsed (interpreter, 1254 "process load", 1255 "Load a shared library into the current process.", 1256 "process load <filename> [<filename> ...]", 1257 eFlagRequiresProcess | 1258 eFlagTryTargetAPILock | 1259 eFlagProcessMustBeLaunched | 1260 eFlagProcessMustBePaused ) 1261 { 1262 } 1263 1264 ~CommandObjectProcessLoad () 1265 { 1266 } 1267 1268 protected: 1269 bool 1270 DoExecute (Args& command, 1271 CommandReturnObject &result) 1272 { 1273 Process *process = m_exe_ctx.GetProcessPtr(); 1274 1275 const size_t argc = command.GetArgumentCount(); 1276 1277 for (uint32_t i=0; i<argc; ++i) 1278 { 1279 Error error; 1280 const char *image_path = command.GetArgumentAtIndex(i); 1281 FileSpec image_spec (image_path, false); 1282 process->GetTarget().GetPlatform()->ResolveRemotePath(image_spec, image_spec); 1283 uint32_t image_token = process->LoadImage(image_spec, error); 1284 if (image_token != LLDB_INVALID_IMAGE_TOKEN) 1285 { 1286 result.AppendMessageWithFormat ("Loading \"%s\"...ok\nImage %u loaded.\n", image_path, image_token); 1287 result.SetStatus (eReturnStatusSuccessFinishResult); 1288 } 1289 else 1290 { 1291 result.AppendErrorWithFormat ("failed to load '%s': %s", image_path, error.AsCString()); 1292 result.SetStatus (eReturnStatusFailed); 1293 } 1294 } 1295 return result.Succeeded(); 1296 } 1297 }; 1298 1299 1300 //------------------------------------------------------------------------- 1301 // CommandObjectProcessUnload 1302 //------------------------------------------------------------------------- 1303 #pragma mark CommandObjectProcessUnload 1304 1305 class CommandObjectProcessUnload : public CommandObjectParsed 1306 { 1307 public: 1308 1309 CommandObjectProcessUnload (CommandInterpreter &interpreter) : 1310 CommandObjectParsed (interpreter, 1311 "process unload", 1312 "Unload a shared library from the current process using the index returned by a previous call to \"process load\".", 1313 "process unload <index>", 1314 eFlagRequiresProcess | 1315 eFlagTryTargetAPILock | 1316 eFlagProcessMustBeLaunched | 1317 eFlagProcessMustBePaused ) 1318 { 1319 } 1320 1321 ~CommandObjectProcessUnload () 1322 { 1323 } 1324 1325 protected: 1326 bool 1327 DoExecute (Args& command, 1328 CommandReturnObject &result) 1329 { 1330 Process *process = m_exe_ctx.GetProcessPtr(); 1331 1332 const size_t argc = command.GetArgumentCount(); 1333 1334 for (uint32_t i=0; i<argc; ++i) 1335 { 1336 const char *image_token_cstr = command.GetArgumentAtIndex(i); 1337 uint32_t image_token = Args::StringToUInt32(image_token_cstr, LLDB_INVALID_IMAGE_TOKEN, 0); 1338 if (image_token == LLDB_INVALID_IMAGE_TOKEN) 1339 { 1340 result.AppendErrorWithFormat ("invalid image index argument '%s'", image_token_cstr); 1341 result.SetStatus (eReturnStatusFailed); 1342 break; 1343 } 1344 else 1345 { 1346 Error error (process->UnloadImage(image_token)); 1347 if (error.Success()) 1348 { 1349 result.AppendMessageWithFormat ("Unloading shared library with index %u...ok\n", image_token); 1350 result.SetStatus (eReturnStatusSuccessFinishResult); 1351 } 1352 else 1353 { 1354 result.AppendErrorWithFormat ("failed to unload image: %s", error.AsCString()); 1355 result.SetStatus (eReturnStatusFailed); 1356 break; 1357 } 1358 } 1359 } 1360 return result.Succeeded(); 1361 } 1362 }; 1363 1364 //------------------------------------------------------------------------- 1365 // CommandObjectProcessSignal 1366 //------------------------------------------------------------------------- 1367 #pragma mark CommandObjectProcessSignal 1368 1369 class CommandObjectProcessSignal : public CommandObjectParsed 1370 { 1371 public: 1372 1373 CommandObjectProcessSignal (CommandInterpreter &interpreter) : 1374 CommandObjectParsed (interpreter, 1375 "process signal", 1376 "Send a UNIX signal to the current process being debugged.", 1377 NULL, 1378 eFlagRequiresProcess | eFlagTryTargetAPILock) 1379 { 1380 CommandArgumentEntry arg; 1381 CommandArgumentData signal_arg; 1382 1383 // Define the first (and only) variant of this arg. 1384 signal_arg.arg_type = eArgTypeUnixSignal; 1385 signal_arg.arg_repetition = eArgRepeatPlain; 1386 1387 // There is only one variant this argument could be; put it into the argument entry. 1388 arg.push_back (signal_arg); 1389 1390 // Push the data for the first argument into the m_arguments vector. 1391 m_arguments.push_back (arg); 1392 } 1393 1394 ~CommandObjectProcessSignal () 1395 { 1396 } 1397 1398 protected: 1399 bool 1400 DoExecute (Args& command, 1401 CommandReturnObject &result) 1402 { 1403 Process *process = m_exe_ctx.GetProcessPtr(); 1404 1405 if (command.GetArgumentCount() == 1) 1406 { 1407 int signo = LLDB_INVALID_SIGNAL_NUMBER; 1408 1409 const char *signal_name = command.GetArgumentAtIndex(0); 1410 if (::isxdigit (signal_name[0])) 1411 signo = Args::StringToSInt32(signal_name, LLDB_INVALID_SIGNAL_NUMBER, 0); 1412 else 1413 signo = process->GetUnixSignals().GetSignalNumberFromName (signal_name); 1414 1415 if (signo == LLDB_INVALID_SIGNAL_NUMBER) 1416 { 1417 result.AppendErrorWithFormat ("Invalid signal argument '%s'.\n", command.GetArgumentAtIndex(0)); 1418 result.SetStatus (eReturnStatusFailed); 1419 } 1420 else 1421 { 1422 Error error (process->Signal (signo)); 1423 if (error.Success()) 1424 { 1425 result.SetStatus (eReturnStatusSuccessFinishResult); 1426 } 1427 else 1428 { 1429 result.AppendErrorWithFormat ("Failed to send signal %i: %s\n", signo, error.AsCString()); 1430 result.SetStatus (eReturnStatusFailed); 1431 } 1432 } 1433 } 1434 else 1435 { 1436 result.AppendErrorWithFormat("'%s' takes exactly one signal number argument:\nUsage: %s\n", m_cmd_name.c_str(), 1437 m_cmd_syntax.c_str()); 1438 result.SetStatus (eReturnStatusFailed); 1439 } 1440 return result.Succeeded(); 1441 } 1442 }; 1443 1444 1445 //------------------------------------------------------------------------- 1446 // CommandObjectProcessInterrupt 1447 //------------------------------------------------------------------------- 1448 #pragma mark CommandObjectProcessInterrupt 1449 1450 class CommandObjectProcessInterrupt : public CommandObjectParsed 1451 { 1452 public: 1453 1454 1455 CommandObjectProcessInterrupt (CommandInterpreter &interpreter) : 1456 CommandObjectParsed (interpreter, 1457 "process interrupt", 1458 "Interrupt the current process being debugged.", 1459 "process interrupt", 1460 eFlagRequiresProcess | 1461 eFlagTryTargetAPILock | 1462 eFlagProcessMustBeLaunched) 1463 { 1464 } 1465 1466 ~CommandObjectProcessInterrupt () 1467 { 1468 } 1469 1470 protected: 1471 bool 1472 DoExecute (Args& command, 1473 CommandReturnObject &result) 1474 { 1475 Process *process = m_exe_ctx.GetProcessPtr(); 1476 if (process == NULL) 1477 { 1478 result.AppendError ("no process to halt"); 1479 result.SetStatus (eReturnStatusFailed); 1480 return false; 1481 } 1482 1483 if (command.GetArgumentCount() == 0) 1484 { 1485 Error error(process->Halt ()); 1486 if (error.Success()) 1487 { 1488 result.SetStatus (eReturnStatusSuccessFinishResult); 1489 1490 // Maybe we should add a "SuspendThreadPlans so we 1491 // can halt, and keep in place all the current thread plans. 1492 process->GetThreadList().DiscardThreadPlans(); 1493 } 1494 else 1495 { 1496 result.AppendErrorWithFormat ("Failed to halt process: %s\n", error.AsCString()); 1497 result.SetStatus (eReturnStatusFailed); 1498 } 1499 } 1500 else 1501 { 1502 result.AppendErrorWithFormat("'%s' takes no arguments:\nUsage: %s\n", 1503 m_cmd_name.c_str(), 1504 m_cmd_syntax.c_str()); 1505 result.SetStatus (eReturnStatusFailed); 1506 } 1507 return result.Succeeded(); 1508 } 1509 }; 1510 1511 //------------------------------------------------------------------------- 1512 // CommandObjectProcessKill 1513 //------------------------------------------------------------------------- 1514 #pragma mark CommandObjectProcessKill 1515 1516 class CommandObjectProcessKill : public CommandObjectParsed 1517 { 1518 public: 1519 1520 CommandObjectProcessKill (CommandInterpreter &interpreter) : 1521 CommandObjectParsed (interpreter, 1522 "process kill", 1523 "Terminate the current process being debugged.", 1524 "process kill", 1525 eFlagRequiresProcess | 1526 eFlagTryTargetAPILock | 1527 eFlagProcessMustBeLaunched) 1528 { 1529 } 1530 1531 ~CommandObjectProcessKill () 1532 { 1533 } 1534 1535 protected: 1536 bool 1537 DoExecute (Args& command, 1538 CommandReturnObject &result) 1539 { 1540 Process *process = m_exe_ctx.GetProcessPtr(); 1541 if (process == NULL) 1542 { 1543 result.AppendError ("no process to kill"); 1544 result.SetStatus (eReturnStatusFailed); 1545 return false; 1546 } 1547 1548 if (command.GetArgumentCount() == 0) 1549 { 1550 Error error (process->Destroy()); 1551 if (error.Success()) 1552 { 1553 result.SetStatus (eReturnStatusSuccessFinishResult); 1554 } 1555 else 1556 { 1557 result.AppendErrorWithFormat ("Failed to kill process: %s\n", error.AsCString()); 1558 result.SetStatus (eReturnStatusFailed); 1559 } 1560 } 1561 else 1562 { 1563 result.AppendErrorWithFormat("'%s' takes no arguments:\nUsage: %s\n", 1564 m_cmd_name.c_str(), 1565 m_cmd_syntax.c_str()); 1566 result.SetStatus (eReturnStatusFailed); 1567 } 1568 return result.Succeeded(); 1569 } 1570 }; 1571 1572 //------------------------------------------------------------------------- 1573 // CommandObjectProcessStatus 1574 //------------------------------------------------------------------------- 1575 #pragma mark CommandObjectProcessStatus 1576 1577 class CommandObjectProcessStatus : public CommandObjectParsed 1578 { 1579 public: 1580 CommandObjectProcessStatus (CommandInterpreter &interpreter) : 1581 CommandObjectParsed (interpreter, 1582 "process status", 1583 "Show the current status and location of executing process.", 1584 "process status", 1585 eFlagRequiresProcess | eFlagTryTargetAPILock) 1586 { 1587 } 1588 1589 ~CommandObjectProcessStatus() 1590 { 1591 } 1592 1593 1594 bool 1595 DoExecute (Args& command, CommandReturnObject &result) 1596 { 1597 Stream &strm = result.GetOutputStream(); 1598 result.SetStatus (eReturnStatusSuccessFinishNoResult); 1599 // No need to check "process" for validity as eFlagRequiresProcess ensures it is valid 1600 Process *process = m_exe_ctx.GetProcessPtr(); 1601 const bool only_threads_with_stop_reason = true; 1602 const uint32_t start_frame = 0; 1603 const uint32_t num_frames = 1; 1604 const uint32_t num_frames_with_source = 1; 1605 process->GetStatus(strm); 1606 process->GetThreadStatus (strm, 1607 only_threads_with_stop_reason, 1608 start_frame, 1609 num_frames, 1610 num_frames_with_source); 1611 return result.Succeeded(); 1612 } 1613 }; 1614 1615 //------------------------------------------------------------------------- 1616 // CommandObjectProcessHandle 1617 //------------------------------------------------------------------------- 1618 #pragma mark CommandObjectProcessHandle 1619 1620 class CommandObjectProcessHandle : public CommandObjectParsed 1621 { 1622 public: 1623 1624 class CommandOptions : public Options 1625 { 1626 public: 1627 1628 CommandOptions (CommandInterpreter &interpreter) : 1629 Options (interpreter) 1630 { 1631 OptionParsingStarting (); 1632 } 1633 1634 ~CommandOptions () 1635 { 1636 } 1637 1638 Error 1639 SetOptionValue (uint32_t option_idx, const char *option_arg) 1640 { 1641 Error error; 1642 const int short_option = m_getopt_table[option_idx].val; 1643 1644 switch (short_option) 1645 { 1646 case 's': 1647 stop = option_arg; 1648 break; 1649 case 'n': 1650 notify = option_arg; 1651 break; 1652 case 'p': 1653 pass = option_arg; 1654 break; 1655 default: 1656 error.SetErrorStringWithFormat("invalid short option character '%c'", short_option); 1657 break; 1658 } 1659 return error; 1660 } 1661 1662 void 1663 OptionParsingStarting () 1664 { 1665 stop.clear(); 1666 notify.clear(); 1667 pass.clear(); 1668 } 1669 1670 const OptionDefinition* 1671 GetDefinitions () 1672 { 1673 return g_option_table; 1674 } 1675 1676 // Options table: Required for subclasses of Options. 1677 1678 static OptionDefinition g_option_table[]; 1679 1680 // Instance variables to hold the values for command options. 1681 1682 std::string stop; 1683 std::string notify; 1684 std::string pass; 1685 }; 1686 1687 1688 CommandObjectProcessHandle (CommandInterpreter &interpreter) : 1689 CommandObjectParsed (interpreter, 1690 "process handle", 1691 "Show or update what the process and debugger should do with various signals received from the OS.", 1692 NULL), 1693 m_options (interpreter) 1694 { 1695 SetHelpLong ("If no signals are specified, update them all. If no update option is specified, list the current values.\n"); 1696 CommandArgumentEntry arg; 1697 CommandArgumentData signal_arg; 1698 1699 signal_arg.arg_type = eArgTypeUnixSignal; 1700 signal_arg.arg_repetition = eArgRepeatStar; 1701 1702 arg.push_back (signal_arg); 1703 1704 m_arguments.push_back (arg); 1705 } 1706 1707 ~CommandObjectProcessHandle () 1708 { 1709 } 1710 1711 Options * 1712 GetOptions () 1713 { 1714 return &m_options; 1715 } 1716 1717 bool 1718 VerifyCommandOptionValue (const std::string &option, int &real_value) 1719 { 1720 bool okay = true; 1721 1722 bool success = false; 1723 bool tmp_value = Args::StringToBoolean (option.c_str(), false, &success); 1724 1725 if (success && tmp_value) 1726 real_value = 1; 1727 else if (success && !tmp_value) 1728 real_value = 0; 1729 else 1730 { 1731 // If the value isn't 'true' or 'false', it had better be 0 or 1. 1732 real_value = Args::StringToUInt32 (option.c_str(), 3); 1733 if (real_value != 0 && real_value != 1) 1734 okay = false; 1735 } 1736 1737 return okay; 1738 } 1739 1740 void 1741 PrintSignalHeader (Stream &str) 1742 { 1743 str.Printf ("NAME PASS STOP NOTIFY\n"); 1744 str.Printf ("========== ===== ===== ======\n"); 1745 } 1746 1747 void 1748 PrintSignal (Stream &str, int32_t signo, const char *sig_name, UnixSignals &signals) 1749 { 1750 bool stop; 1751 bool suppress; 1752 bool notify; 1753 1754 str.Printf ("%-10s ", sig_name); 1755 if (signals.GetSignalInfo (signo, suppress, stop, notify)) 1756 { 1757 bool pass = !suppress; 1758 str.Printf ("%s %s %s", 1759 (pass ? "true " : "false"), 1760 (stop ? "true " : "false"), 1761 (notify ? "true " : "false")); 1762 } 1763 str.Printf ("\n"); 1764 } 1765 1766 void 1767 PrintSignalInformation (Stream &str, Args &signal_args, int num_valid_signals, UnixSignals &signals) 1768 { 1769 PrintSignalHeader (str); 1770 1771 if (num_valid_signals > 0) 1772 { 1773 size_t num_args = signal_args.GetArgumentCount(); 1774 for (size_t i = 0; i < num_args; ++i) 1775 { 1776 int32_t signo = signals.GetSignalNumberFromName (signal_args.GetArgumentAtIndex (i)); 1777 if (signo != LLDB_INVALID_SIGNAL_NUMBER) 1778 PrintSignal (str, signo, signal_args.GetArgumentAtIndex (i), signals); 1779 } 1780 } 1781 else // Print info for ALL signals 1782 { 1783 int32_t signo = signals.GetFirstSignalNumber(); 1784 while (signo != LLDB_INVALID_SIGNAL_NUMBER) 1785 { 1786 PrintSignal (str, signo, signals.GetSignalAsCString (signo), signals); 1787 signo = signals.GetNextSignalNumber (signo); 1788 } 1789 } 1790 } 1791 1792 protected: 1793 bool 1794 DoExecute (Args &signal_args, CommandReturnObject &result) 1795 { 1796 TargetSP target_sp = m_interpreter.GetDebugger().GetSelectedTarget(); 1797 1798 if (!target_sp) 1799 { 1800 result.AppendError ("No current target;" 1801 " cannot handle signals until you have a valid target and process.\n"); 1802 result.SetStatus (eReturnStatusFailed); 1803 return false; 1804 } 1805 1806 ProcessSP process_sp = target_sp->GetProcessSP(); 1807 1808 if (!process_sp) 1809 { 1810 result.AppendError ("No current process; cannot handle signals until you have a valid process.\n"); 1811 result.SetStatus (eReturnStatusFailed); 1812 return false; 1813 } 1814 1815 int stop_action = -1; // -1 means leave the current setting alone 1816 int pass_action = -1; // -1 means leave the current setting alone 1817 int notify_action = -1; // -1 means leave the current setting alone 1818 1819 if (! m_options.stop.empty() 1820 && ! VerifyCommandOptionValue (m_options.stop, stop_action)) 1821 { 1822 result.AppendError ("Invalid argument for command option --stop; must be true or false.\n"); 1823 result.SetStatus (eReturnStatusFailed); 1824 return false; 1825 } 1826 1827 if (! m_options.notify.empty() 1828 && ! VerifyCommandOptionValue (m_options.notify, notify_action)) 1829 { 1830 result.AppendError ("Invalid argument for command option --notify; must be true or false.\n"); 1831 result.SetStatus (eReturnStatusFailed); 1832 return false; 1833 } 1834 1835 if (! m_options.pass.empty() 1836 && ! VerifyCommandOptionValue (m_options.pass, pass_action)) 1837 { 1838 result.AppendError ("Invalid argument for command option --pass; must be true or false.\n"); 1839 result.SetStatus (eReturnStatusFailed); 1840 return false; 1841 } 1842 1843 size_t num_args = signal_args.GetArgumentCount(); 1844 UnixSignals &signals = process_sp->GetUnixSignals(); 1845 int num_signals_set = 0; 1846 1847 if (num_args > 0) 1848 { 1849 for (size_t i = 0; i < num_args; ++i) 1850 { 1851 int32_t signo = signals.GetSignalNumberFromName (signal_args.GetArgumentAtIndex (i)); 1852 if (signo != LLDB_INVALID_SIGNAL_NUMBER) 1853 { 1854 // Casting the actions as bools here should be okay, because VerifyCommandOptionValue guarantees 1855 // the value is either 0 or 1. 1856 if (stop_action != -1) 1857 signals.SetShouldStop (signo, (bool) stop_action); 1858 if (pass_action != -1) 1859 { 1860 bool suppress = ! ((bool) pass_action); 1861 signals.SetShouldSuppress (signo, suppress); 1862 } 1863 if (notify_action != -1) 1864 signals.SetShouldNotify (signo, (bool) notify_action); 1865 ++num_signals_set; 1866 } 1867 else 1868 { 1869 result.AppendErrorWithFormat ("Invalid signal name '%s'\n", signal_args.GetArgumentAtIndex (i)); 1870 } 1871 } 1872 } 1873 else 1874 { 1875 // No signal specified, if any command options were specified, update ALL signals. 1876 if ((notify_action != -1) || (stop_action != -1) || (pass_action != -1)) 1877 { 1878 if (m_interpreter.Confirm ("Do you really want to update all the signals?", false)) 1879 { 1880 int32_t signo = signals.GetFirstSignalNumber(); 1881 while (signo != LLDB_INVALID_SIGNAL_NUMBER) 1882 { 1883 if (notify_action != -1) 1884 signals.SetShouldNotify (signo, (bool) notify_action); 1885 if (stop_action != -1) 1886 signals.SetShouldStop (signo, (bool) stop_action); 1887 if (pass_action != -1) 1888 { 1889 bool suppress = ! ((bool) pass_action); 1890 signals.SetShouldSuppress (signo, suppress); 1891 } 1892 signo = signals.GetNextSignalNumber (signo); 1893 } 1894 } 1895 } 1896 } 1897 1898 PrintSignalInformation (result.GetOutputStream(), signal_args, num_signals_set, signals); 1899 1900 if (num_signals_set > 0) 1901 result.SetStatus (eReturnStatusSuccessFinishNoResult); 1902 else 1903 result.SetStatus (eReturnStatusFailed); 1904 1905 return result.Succeeded(); 1906 } 1907 1908 CommandOptions m_options; 1909 }; 1910 1911 OptionDefinition 1912 CommandObjectProcessHandle::CommandOptions::g_option_table[] = 1913 { 1914 { 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." }, 1915 { 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." }, 1916 { LLDB_OPT_SET_1, false, "pass", 'p', required_argument, NULL, 0, eArgTypeBoolean, "Whether or not the signal should be passed to the process." }, 1917 { 0, false, NULL, 0, 0, NULL, 0, eArgTypeNone, NULL } 1918 }; 1919 1920 //------------------------------------------------------------------------- 1921 // CommandObjectMultiwordProcess 1922 //------------------------------------------------------------------------- 1923 1924 CommandObjectMultiwordProcess::CommandObjectMultiwordProcess (CommandInterpreter &interpreter) : 1925 CommandObjectMultiword (interpreter, 1926 "process", 1927 "A set of commands for operating on a process.", 1928 "process <subcommand> [<subcommand-options>]") 1929 { 1930 LoadSubCommand ("attach", CommandObjectSP (new CommandObjectProcessAttach (interpreter))); 1931 LoadSubCommand ("launch", CommandObjectSP (new CommandObjectProcessLaunch (interpreter))); 1932 LoadSubCommand ("continue", CommandObjectSP (new CommandObjectProcessContinue (interpreter))); 1933 LoadSubCommand ("connect", CommandObjectSP (new CommandObjectProcessConnect (interpreter))); 1934 LoadSubCommand ("detach", CommandObjectSP (new CommandObjectProcessDetach (interpreter))); 1935 LoadSubCommand ("load", CommandObjectSP (new CommandObjectProcessLoad (interpreter))); 1936 LoadSubCommand ("unload", CommandObjectSP (new CommandObjectProcessUnload (interpreter))); 1937 LoadSubCommand ("signal", CommandObjectSP (new CommandObjectProcessSignal (interpreter))); 1938 LoadSubCommand ("handle", CommandObjectSP (new CommandObjectProcessHandle (interpreter))); 1939 LoadSubCommand ("status", CommandObjectSP (new CommandObjectProcessStatus (interpreter))); 1940 LoadSubCommand ("interrupt", CommandObjectSP (new CommandObjectProcessInterrupt (interpreter))); 1941 LoadSubCommand ("kill", CommandObjectSP (new CommandObjectProcessKill (interpreter))); 1942 LoadSubCommand ("plugin", CommandObjectSP (new CommandObjectProcessPlugin (interpreter))); 1943 } 1944 1945 CommandObjectMultiwordProcess::~CommandObjectMultiwordProcess () 1946 { 1947 } 1948 1949