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 //------------------------------------------------------------------------- 38 // CommandObjectProcessLaunch 39 //------------------------------------------------------------------------- 40 #pragma mark CommandObjectProcessLaunch 41 class CommandObjectProcessLaunch : public CommandObjectParsed 42 { 43 public: 44 45 CommandObjectProcessLaunch (CommandInterpreter &interpreter) : 46 CommandObjectParsed (interpreter, 47 "process launch", 48 "Launch the executable in the debugger.", 49 NULL), 50 m_options (interpreter) 51 { 52 CommandArgumentEntry arg; 53 CommandArgumentData run_args_arg; 54 55 // Define the first (and only) variant of this arg. 56 run_args_arg.arg_type = eArgTypeRunArgs; 57 run_args_arg.arg_repetition = eArgRepeatOptional; 58 59 // There is only one variant this argument could be; put it into the argument entry. 60 arg.push_back (run_args_arg); 61 62 // Push the data for the first argument into the m_arguments vector. 63 m_arguments.push_back (arg); 64 } 65 66 67 ~CommandObjectProcessLaunch () 68 { 69 } 70 71 int 72 HandleArgumentCompletion (Args &input, 73 int &cursor_index, 74 int &cursor_char_position, 75 OptionElementVector &opt_element_vector, 76 int match_start_point, 77 int max_return_elements, 78 bool &word_complete, 79 StringList &matches) 80 { 81 std::string completion_str (input.GetArgumentAtIndex(cursor_index)); 82 completion_str.erase (cursor_char_position); 83 84 CommandCompletions::InvokeCommonCompletionCallbacks (m_interpreter, 85 CommandCompletions::eDiskFileCompletion, 86 completion_str.c_str(), 87 match_start_point, 88 max_return_elements, 89 NULL, 90 word_complete, 91 matches); 92 return matches.GetSize(); 93 } 94 95 Options * 96 GetOptions () 97 { 98 return &m_options; 99 } 100 101 virtual const char *GetRepeatCommand (Args ¤t_command_args, uint32_t index) 102 { 103 // No repeat for "process launch"... 104 return ""; 105 } 106 107 protected: 108 bool 109 DoExecute (Args& launch_args, CommandReturnObject &result) 110 { 111 Debugger &debugger = m_interpreter.GetDebugger(); 112 Target *target = debugger.GetSelectedTarget().get(); 113 Error error; 114 115 if (target == NULL) 116 { 117 result.AppendError ("invalid target, create a debug target using the 'target create' command"); 118 result.SetStatus (eReturnStatusFailed); 119 return false; 120 } 121 // If our listener is NULL, users aren't allows to launch 122 char filename[PATH_MAX]; 123 const Module *exe_module = target->GetExecutableModulePointer(); 124 125 if (exe_module == NULL) 126 { 127 result.AppendError ("no file in target, create a debug target using the 'target create' command"); 128 result.SetStatus (eReturnStatusFailed); 129 return false; 130 } 131 132 StateType state = eStateInvalid; 133 Process *process = m_interpreter.GetExecutionContext().GetProcessPtr(); 134 if (process) 135 { 136 state = process->GetState(); 137 138 if (process->IsAlive() && state != eStateConnected) 139 { 140 char message[1024]; 141 if (process->GetState() == eStateAttaching) 142 ::strncpy (message, "There is a pending attach, abort it and launch a new process?", sizeof(message)); 143 else 144 ::strncpy (message, "There is a running process, kill it and restart?", sizeof(message)); 145 146 if (!m_interpreter.Confirm (message, true)) 147 { 148 result.SetStatus (eReturnStatusFailed); 149 return false; 150 } 151 else 152 { 153 Error destroy_error (process->Destroy()); 154 if (destroy_error.Success()) 155 { 156 result.SetStatus (eReturnStatusSuccessFinishResult); 157 } 158 else 159 { 160 result.AppendErrorWithFormat ("Failed to kill process: %s\n", destroy_error.AsCString()); 161 result.SetStatus (eReturnStatusFailed); 162 } 163 } 164 } 165 } 166 167 const char *target_settings_argv0 = target->GetArg0(); 168 169 exe_module->GetFileSpec().GetPath (filename, sizeof(filename)); 170 171 if (target_settings_argv0) 172 { 173 m_options.launch_info.GetArguments().AppendArgument (target_settings_argv0); 174 m_options.launch_info.SetExecutableFile(exe_module->GetPlatformFileSpec(), false); 175 } 176 else 177 { 178 m_options.launch_info.SetExecutableFile(exe_module->GetPlatformFileSpec(), true); 179 } 180 181 if (launch_args.GetArgumentCount() == 0) 182 { 183 Args target_setting_args; 184 if (target->GetRunArguments(target_setting_args)) 185 m_options.launch_info.GetArguments().AppendArguments (target_setting_args); 186 } 187 else 188 { 189 m_options.launch_info.GetArguments().AppendArguments (launch_args); 190 191 // Save the arguments for subsequent runs in the current target. 192 target->SetRunArguments (launch_args); 193 } 194 195 if (target->GetDisableASLR()) 196 m_options.launch_info.GetFlags().Set (eLaunchFlagDisableASLR); 197 198 if (target->GetDisableSTDIO()) 199 m_options.launch_info.GetFlags().Set (eLaunchFlagDisableSTDIO); 200 201 m_options.launch_info.GetFlags().Set (eLaunchFlagDebug); 202 203 Args environment; 204 target->GetEnvironmentAsArgs (environment); 205 if (environment.GetArgumentCount() > 0) 206 m_options.launch_info.GetEnvironmentEntries ().AppendArguments (environment); 207 208 // Finalize the file actions, and if none were given, default to opening 209 // up a pseudo terminal 210 const bool default_to_use_pty = true; 211 m_options.launch_info.FinalizeFileActions (target, default_to_use_pty); 212 213 if (state == eStateConnected) 214 { 215 if (m_options.launch_info.GetFlags().Test (eLaunchFlagLaunchInTTY)) 216 { 217 result.AppendWarning("can't launch in tty when launching through a remote connection"); 218 m_options.launch_info.GetFlags().Clear (eLaunchFlagLaunchInTTY); 219 } 220 } 221 else 222 { 223 if (!m_options.launch_info.GetArchitecture().IsValid()) 224 m_options.launch_info.GetArchitecture() = target->GetArchitecture(); 225 226 PlatformSP platform_sp (target->GetPlatform()); 227 228 if (platform_sp && platform_sp->CanDebugProcess ()) 229 { 230 process = target->GetPlatform()->DebugProcess (m_options.launch_info, 231 debugger, 232 target, 233 debugger.GetListener(), 234 error).get(); 235 } 236 else 237 { 238 const char *plugin_name = m_options.launch_info.GetProcessPluginName(); 239 process = target->CreateProcess (debugger.GetListener(), plugin_name, NULL).get(); 240 if (process) 241 error = process->Launch (m_options.launch_info); 242 } 243 244 if (process == NULL) 245 { 246 result.SetError (error, "failed to launch or debug process"); 247 return false; 248 } 249 } 250 251 if (error.Success()) 252 { 253 const char *archname = exe_module->GetArchitecture().GetArchitectureName(); 254 255 result.AppendMessageWithFormat ("Process %" PRIu64 " launched: '%s' (%s)\n", process->GetID(), filename, archname); 256 result.SetDidChangeProcessState (true); 257 if (m_options.launch_info.GetFlags().Test(eLaunchFlagStopAtEntry) == false) 258 { 259 result.SetStatus (eReturnStatusSuccessContinuingNoResult); 260 StateType state = process->WaitForProcessToStop (NULL); 261 262 if (state == eStateStopped) 263 { 264 error = process->Resume(); 265 if (error.Success()) 266 { 267 bool synchronous_execution = m_interpreter.GetSynchronous (); 268 if (synchronous_execution) 269 { 270 state = process->WaitForProcessToStop (NULL); 271 const bool must_be_alive = true; 272 if (!StateIsStoppedState(state, must_be_alive)) 273 { 274 result.AppendErrorWithFormat ("process isn't stopped: %s", StateAsCString(state)); 275 } 276 result.SetDidChangeProcessState (true); 277 result.SetStatus (eReturnStatusSuccessFinishResult); 278 } 279 else 280 { 281 result.SetStatus (eReturnStatusSuccessContinuingNoResult); 282 } 283 } 284 else 285 { 286 result.AppendErrorWithFormat ("process resume at entry point failed: %s", error.AsCString()); 287 result.SetStatus (eReturnStatusFailed); 288 } 289 } 290 else 291 { 292 result.AppendErrorWithFormat ("initial process state wasn't stopped: %s", StateAsCString(state)); 293 result.SetStatus (eReturnStatusFailed); 294 } 295 } 296 } 297 else 298 { 299 result.AppendErrorWithFormat ("process launch failed: %s", error.AsCString()); 300 result.SetStatus (eReturnStatusFailed); 301 } 302 303 return result.Succeeded(); 304 } 305 306 protected: 307 ProcessLaunchCommandOptions m_options; 308 }; 309 310 311 //#define SET1 LLDB_OPT_SET_1 312 //#define SET2 LLDB_OPT_SET_2 313 //#define SET3 LLDB_OPT_SET_3 314 // 315 //OptionDefinition 316 //CommandObjectProcessLaunch::CommandOptions::g_option_table[] = 317 //{ 318 //{ 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."}, 319 //{ SET1 , false, "stdin", 'i', required_argument, NULL, 0, eArgTypeDirectoryName, "Redirect stdin for the process to <path>."}, 320 //{ SET1 , false, "stdout", 'o', required_argument, NULL, 0, eArgTypeDirectoryName, "Redirect stdout for the process to <path>."}, 321 //{ SET1 , false, "stderr", 'e', required_argument, NULL, 0, eArgTypeDirectoryName, "Redirect stderr for the process to <path>."}, 322 //{ SET1 | SET2 | SET3, false, "plugin", 'p', required_argument, NULL, 0, eArgTypePlugin, "Name of the process plugin you want to use."}, 323 //{ 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."}, 324 //{ SET3, false, "no-stdio", 'n', no_argument, NULL, 0, eArgTypeNone, "Do not set up for terminal I/O to go to running process."}, 325 //{ SET1 | SET2 | SET3, false, "working-dir", 'w', required_argument, NULL, 0, eArgTypeDirectoryName, "Set the current working directory to <path> when running the inferior."}, 326 //{ 0, false, NULL, 0, 0, NULL, 0, eArgTypeNone, NULL } 327 //}; 328 // 329 //#undef SET1 330 //#undef SET2 331 //#undef SET3 332 333 //------------------------------------------------------------------------- 334 // CommandObjectProcessAttach 335 //------------------------------------------------------------------------- 336 #pragma mark CommandObjectProcessAttach 337 class CommandObjectProcessAttach : public CommandObjectParsed 338 { 339 public: 340 341 class CommandOptions : public Options 342 { 343 public: 344 345 CommandOptions (CommandInterpreter &interpreter) : 346 Options(interpreter) 347 { 348 // Keep default values of all options in one place: OptionParsingStarting () 349 OptionParsingStarting (); 350 } 351 352 ~CommandOptions () 353 { 354 } 355 356 Error 357 SetOptionValue (uint32_t option_idx, const char *option_arg) 358 { 359 Error error; 360 const int short_option = m_getopt_table[option_idx].val; 361 bool success = false; 362 switch (short_option) 363 { 364 case 'c': 365 attach_info.SetContinueOnceAttached(true); 366 break; 367 368 case 'p': 369 { 370 lldb::pid_t pid = Args::StringToUInt32 (option_arg, LLDB_INVALID_PROCESS_ID, 0, &success); 371 if (!success || pid == LLDB_INVALID_PROCESS_ID) 372 { 373 error.SetErrorStringWithFormat("invalid process ID '%s'", option_arg); 374 } 375 else 376 { 377 attach_info.SetProcessID (pid); 378 } 379 } 380 break; 381 382 case 'P': 383 attach_info.SetProcessPluginName (option_arg); 384 break; 385 386 case 'n': 387 attach_info.GetExecutableFile().SetFile(option_arg, false); 388 break; 389 390 case 'w': 391 attach_info.SetWaitForLaunch(true); 392 break; 393 394 case 'i': 395 attach_info.SetIgnoreExisting(false); 396 break; 397 398 default: 399 error.SetErrorStringWithFormat("invalid short option character '%c'", short_option); 400 break; 401 } 402 return error; 403 } 404 405 void 406 OptionParsingStarting () 407 { 408 attach_info.Clear(); 409 } 410 411 const OptionDefinition* 412 GetDefinitions () 413 { 414 return g_option_table; 415 } 416 417 virtual bool 418 HandleOptionArgumentCompletion (Args &input, 419 int cursor_index, 420 int char_pos, 421 OptionElementVector &opt_element_vector, 422 int opt_element_index, 423 int match_start_point, 424 int max_return_elements, 425 bool &word_complete, 426 StringList &matches) 427 { 428 int opt_arg_pos = opt_element_vector[opt_element_index].opt_arg_pos; 429 int opt_defs_index = opt_element_vector[opt_element_index].opt_defs_index; 430 431 // We are only completing the name option for now... 432 433 const OptionDefinition *opt_defs = GetDefinitions(); 434 if (opt_defs[opt_defs_index].short_option == 'n') 435 { 436 // Are we in the name? 437 438 // Look to see if there is a -P argument provided, and if so use that plugin, otherwise 439 // use the default plugin. 440 441 const char *partial_name = NULL; 442 partial_name = input.GetArgumentAtIndex(opt_arg_pos); 443 444 PlatformSP platform_sp (m_interpreter.GetPlatform (true)); 445 if (platform_sp) 446 { 447 ProcessInstanceInfoList process_infos; 448 ProcessInstanceInfoMatch match_info; 449 if (partial_name) 450 { 451 match_info.GetProcessInfo().GetExecutableFile().SetFile(partial_name, false); 452 match_info.SetNameMatchType(eNameMatchStartsWith); 453 } 454 platform_sp->FindProcesses (match_info, process_infos); 455 const uint32_t num_matches = process_infos.GetSize(); 456 if (num_matches > 0) 457 { 458 for (uint32_t i=0; i<num_matches; ++i) 459 { 460 matches.AppendString (process_infos.GetProcessNameAtIndex(i), 461 process_infos.GetProcessNameLengthAtIndex(i)); 462 } 463 } 464 } 465 } 466 467 return false; 468 } 469 470 // Options table: Required for subclasses of Options. 471 472 static OptionDefinition g_option_table[]; 473 474 // Instance variables to hold the values for command options. 475 476 ProcessAttachInfo attach_info; 477 }; 478 479 CommandObjectProcessAttach (CommandInterpreter &interpreter) : 480 CommandObjectParsed (interpreter, 481 "process attach", 482 "Attach to a process.", 483 "process attach <cmd-options>"), 484 m_options (interpreter) 485 { 486 } 487 488 ~CommandObjectProcessAttach () 489 { 490 } 491 492 Options * 493 GetOptions () 494 { 495 return &m_options; 496 } 497 498 protected: 499 bool 500 DoExecute (Args& command, 501 CommandReturnObject &result) 502 { 503 Target *target = m_interpreter.GetDebugger().GetSelectedTarget().get(); 504 // N.B. The attach should be synchronous. It doesn't help much to get the prompt back between initiating the attach 505 // and the target actually stopping. So even if the interpreter is set to be asynchronous, we wait for the stop 506 // ourselves here. 507 508 Process *process = m_interpreter.GetExecutionContext().GetProcessPtr(); 509 StateType state = eStateInvalid; 510 if (process) 511 { 512 state = process->GetState(); 513 if (process->IsAlive() && state != eStateConnected) 514 { 515 result.AppendErrorWithFormat ("Process %" PRIu64 " is currently being debugged, kill the process before attaching.\n", 516 process->GetID()); 517 result.SetStatus (eReturnStatusFailed); 518 return false; 519 } 520 } 521 522 if (target == NULL) 523 { 524 // If there isn't a current target create one. 525 TargetSP new_target_sp; 526 Error error; 527 528 error = m_interpreter.GetDebugger().GetTargetList().CreateTarget (m_interpreter.GetDebugger(), 529 NULL, 530 NULL, 531 false, 532 NULL, // No platform options 533 new_target_sp); 534 target = new_target_sp.get(); 535 if (target == NULL || error.Fail()) 536 { 537 result.AppendError(error.AsCString("Error creating target")); 538 return false; 539 } 540 m_interpreter.GetDebugger().GetTargetList().SetSelectedTarget(target); 541 } 542 543 // Record the old executable module, we want to issue a warning if the process of attaching changed the 544 // current executable (like somebody said "file foo" then attached to a PID whose executable was bar.) 545 546 ModuleSP old_exec_module_sp = target->GetExecutableModule(); 547 ArchSpec old_arch_spec = target->GetArchitecture(); 548 549 if (command.GetArgumentCount()) 550 { 551 result.AppendErrorWithFormat("Invalid arguments for '%s'.\nUsage: %s\n", m_cmd_name.c_str(), m_cmd_syntax.c_str()); 552 result.SetStatus (eReturnStatusFailed); 553 } 554 else 555 { 556 if (state != eStateConnected) 557 { 558 const char *plugin_name = m_options.attach_info.GetProcessPluginName(); 559 process = target->CreateProcess (m_interpreter.GetDebugger().GetListener(), plugin_name, NULL).get(); 560 } 561 562 if (process) 563 { 564 Error error; 565 // If no process info was specified, then use the target executable 566 // name as the process to attach to by default 567 if (!m_options.attach_info.ProcessInfoSpecified ()) 568 { 569 if (old_exec_module_sp) 570 m_options.attach_info.GetExecutableFile().GetFilename() = old_exec_module_sp->GetPlatformFileSpec().GetFilename(); 571 572 if (!m_options.attach_info.ProcessInfoSpecified ()) 573 { 574 error.SetErrorString ("no process specified, create a target with a file, or specify the --pid or --name command option"); 575 } 576 } 577 578 if (error.Success()) 579 { 580 error = process->Attach (m_options.attach_info); 581 582 if (error.Success()) 583 { 584 result.SetStatus (eReturnStatusSuccessContinuingNoResult); 585 } 586 else 587 { 588 result.AppendErrorWithFormat ("attach failed: %s\n", error.AsCString()); 589 result.SetStatus (eReturnStatusFailed); 590 return false; 591 } 592 // If we're synchronous, wait for the stopped event and report that. 593 // Otherwise just return. 594 // FIXME: in the async case it will now be possible to get to the command 595 // interpreter with a state eStateAttaching. Make sure we handle that correctly. 596 StateType state = process->WaitForProcessToStop (NULL); 597 598 result.SetDidChangeProcessState (true); 599 600 if (state == eStateStopped) 601 { 602 result.AppendMessageWithFormat ("Process %" PRIu64 " %s\n", process->GetID(), StateAsCString (state)); 603 result.SetStatus (eReturnStatusSuccessFinishNoResult); 604 } 605 else 606 { 607 result.AppendError ("attach failed: process did not stop (no such process or permission problem?)"); 608 process->Destroy(); 609 result.SetStatus (eReturnStatusFailed); 610 return false; 611 } 612 } 613 } 614 } 615 616 if (result.Succeeded()) 617 { 618 // Okay, we're done. Last step is to warn if the executable module has changed: 619 char new_path[PATH_MAX]; 620 ModuleSP new_exec_module_sp (target->GetExecutableModule()); 621 if (!old_exec_module_sp) 622 { 623 // We might not have a module if we attached to a raw pid... 624 if (new_exec_module_sp) 625 { 626 new_exec_module_sp->GetFileSpec().GetPath(new_path, PATH_MAX); 627 result.AppendMessageWithFormat("Executable module set to \"%s\".\n", new_path); 628 } 629 } 630 else if (old_exec_module_sp->GetFileSpec() != new_exec_module_sp->GetFileSpec()) 631 { 632 char old_path[PATH_MAX]; 633 634 old_exec_module_sp->GetFileSpec().GetPath (old_path, PATH_MAX); 635 new_exec_module_sp->GetFileSpec().GetPath (new_path, PATH_MAX); 636 637 result.AppendWarningWithFormat("Executable module changed from \"%s\" to \"%s\".\n", 638 old_path, new_path); 639 } 640 641 if (!old_arch_spec.IsValid()) 642 { 643 result.AppendMessageWithFormat ("Architecture set to: %s.\n", target->GetArchitecture().GetTriple().getTriple().c_str()); 644 } 645 else if (!old_arch_spec.IsExactMatch(target->GetArchitecture())) 646 { 647 result.AppendWarningWithFormat("Architecture changed from %s to %s.\n", 648 old_arch_spec.GetTriple().getTriple().c_str(), 649 target->GetArchitecture().GetTriple().getTriple().c_str()); 650 } 651 652 // This supports the use-case scenario of immediately continuing the process once attached. 653 if (m_options.attach_info.GetContinueOnceAttached()) 654 m_interpreter.HandleCommand("process continue", eLazyBoolNo, result); 655 } 656 return result.Succeeded(); 657 } 658 659 CommandOptions m_options; 660 }; 661 662 663 OptionDefinition 664 CommandObjectProcessAttach::CommandOptions::g_option_table[] = 665 { 666 { LLDB_OPT_SET_ALL, false, "continue",'c', no_argument, NULL, 0, eArgTypeNone, "Immediately continue the process once attached."}, 667 { LLDB_OPT_SET_ALL, false, "plugin", 'P', required_argument, NULL, 0, eArgTypePlugin, "Name of the process plugin you want to use."}, 668 { LLDB_OPT_SET_1, false, "pid", 'p', required_argument, NULL, 0, eArgTypePid, "The process ID of an existing process to attach to."}, 669 { LLDB_OPT_SET_2, false, "name", 'n', required_argument, NULL, 0, eArgTypeProcessName, "The name of the process to attach to."}, 670 { LLDB_OPT_SET_2, false, "include-existing", 'i', no_argument, NULL, 0, eArgTypeNone, "Include existing processes when doing attach -w."}, 671 { LLDB_OPT_SET_2, false, "waitfor", 'w', no_argument, NULL, 0, eArgTypeNone, "Wait for the process with <process-name> to launch."}, 672 { 0, false, NULL, 0, 0, NULL, 0, eArgTypeNone, NULL } 673 }; 674 675 //------------------------------------------------------------------------- 676 // CommandObjectProcessContinue 677 //------------------------------------------------------------------------- 678 #pragma mark CommandObjectProcessContinue 679 680 class CommandObjectProcessContinue : public CommandObjectParsed 681 { 682 public: 683 684 CommandObjectProcessContinue (CommandInterpreter &interpreter) : 685 CommandObjectParsed (interpreter, 686 "process continue", 687 "Continue execution of all threads in the current process.", 688 "process continue", 689 eFlagProcessMustBeLaunched | eFlagProcessMustBePaused), 690 m_options(interpreter) 691 { 692 } 693 694 695 ~CommandObjectProcessContinue () 696 { 697 } 698 699 protected: 700 701 class CommandOptions : public Options 702 { 703 public: 704 705 CommandOptions (CommandInterpreter &interpreter) : 706 Options(interpreter) 707 { 708 // Keep default values of all options in one place: OptionParsingStarting () 709 OptionParsingStarting (); 710 } 711 712 ~CommandOptions () 713 { 714 } 715 716 Error 717 SetOptionValue (uint32_t option_idx, const char *option_arg) 718 { 719 Error error; 720 const int short_option = m_getopt_table[option_idx].val; 721 bool success = false; 722 switch (short_option) 723 { 724 case 'i': 725 m_ignore = Args::StringToUInt32 (option_arg, 0, 0, &success); 726 if (!success) 727 error.SetErrorStringWithFormat ("invalid value for ignore option: \"%s\", should be a number.", option_arg); 728 break; 729 730 default: 731 error.SetErrorStringWithFormat("invalid short option character '%c'", short_option); 732 break; 733 } 734 return error; 735 } 736 737 void 738 OptionParsingStarting () 739 { 740 m_ignore = 0; 741 } 742 743 const OptionDefinition* 744 GetDefinitions () 745 { 746 return g_option_table; 747 } 748 749 // Options table: Required for subclasses of Options. 750 751 static OptionDefinition g_option_table[]; 752 753 uint32_t m_ignore; 754 }; 755 756 bool 757 DoExecute (Args& command, 758 CommandReturnObject &result) 759 { 760 Process *process = m_interpreter.GetExecutionContext().GetProcessPtr(); 761 bool synchronous_execution = m_interpreter.GetSynchronous (); 762 763 if (process == NULL) 764 { 765 result.AppendError ("no process to continue"); 766 result.SetStatus (eReturnStatusFailed); 767 return false; 768 } 769 770 StateType state = process->GetState(); 771 if (state == eStateStopped) 772 { 773 if (command.GetArgumentCount() != 0) 774 { 775 result.AppendErrorWithFormat ("The '%s' command does not take any arguments.\n", m_cmd_name.c_str()); 776 result.SetStatus (eReturnStatusFailed); 777 return false; 778 } 779 780 if (m_options.m_ignore > 0) 781 { 782 ThreadSP sel_thread_sp(process->GetThreadList().GetSelectedThread()); 783 if (sel_thread_sp) 784 { 785 StopInfoSP stop_info_sp = sel_thread_sp->GetStopInfo(); 786 if (stop_info_sp && stop_info_sp->GetStopReason() == eStopReasonBreakpoint) 787 { 788 uint64_t bp_site_id = stop_info_sp->GetValue(); 789 BreakpointSiteSP bp_site_sp(process->GetBreakpointSiteList().FindByID(bp_site_id)); 790 if (bp_site_sp) 791 { 792 uint32_t num_owners = bp_site_sp->GetNumberOfOwners(); 793 for (uint32_t i = 0; i < num_owners; i++) 794 { 795 Breakpoint &bp_ref = bp_site_sp->GetOwnerAtIndex(i)->GetBreakpoint(); 796 if (!bp_ref.IsInternal()) 797 { 798 bp_ref.SetIgnoreCount(m_options.m_ignore); 799 } 800 } 801 } 802 } 803 } 804 } 805 806 { // Scope for thread list mutex: 807 Mutex::Locker locker (process->GetThreadList().GetMutex()); 808 const uint32_t num_threads = process->GetThreadList().GetSize(); 809 810 // Set the actions that the threads should each take when resuming 811 for (uint32_t idx=0; idx<num_threads; ++idx) 812 { 813 process->GetThreadList().GetThreadAtIndex(idx)->SetResumeState (eStateRunning); 814 } 815 } 816 817 Error error(process->Resume()); 818 if (error.Success()) 819 { 820 result.AppendMessageWithFormat ("Process %" PRIu64 " resuming\n", process->GetID()); 821 if (synchronous_execution) 822 { 823 state = process->WaitForProcessToStop (NULL); 824 825 result.SetDidChangeProcessState (true); 826 result.AppendMessageWithFormat ("Process %" PRIu64 " %s\n", process->GetID(), StateAsCString (state)); 827 result.SetStatus (eReturnStatusSuccessFinishNoResult); 828 } 829 else 830 { 831 result.SetStatus (eReturnStatusSuccessContinuingNoResult); 832 } 833 } 834 else 835 { 836 result.AppendErrorWithFormat("Failed to resume process: %s.\n", error.AsCString()); 837 result.SetStatus (eReturnStatusFailed); 838 } 839 } 840 else 841 { 842 result.AppendErrorWithFormat ("Process cannot be continued from its current state (%s).\n", 843 StateAsCString(state)); 844 result.SetStatus (eReturnStatusFailed); 845 } 846 return result.Succeeded(); 847 } 848 849 Options * 850 GetOptions () 851 { 852 return &m_options; 853 } 854 855 CommandOptions m_options; 856 857 }; 858 859 OptionDefinition 860 CommandObjectProcessContinue::CommandOptions::g_option_table[] = 861 { 862 { LLDB_OPT_SET_ALL, false, "ignore-count",'i', required_argument, NULL, 0, eArgTypeUnsignedInteger, 863 "Ignore <N> crossings of the breakpoint (if it exists) for the currently selected thread."}, 864 { 0, false, NULL, 0, 0, NULL, 0, eArgTypeNone, NULL } 865 }; 866 867 //------------------------------------------------------------------------- 868 // CommandObjectProcessDetach 869 //------------------------------------------------------------------------- 870 #pragma mark CommandObjectProcessDetach 871 872 class CommandObjectProcessDetach : public CommandObjectParsed 873 { 874 public: 875 876 CommandObjectProcessDetach (CommandInterpreter &interpreter) : 877 CommandObjectParsed (interpreter, 878 "process detach", 879 "Detach from the current process being debugged.", 880 "process detach", 881 eFlagProcessMustBeLaunched) 882 { 883 } 884 885 ~CommandObjectProcessDetach () 886 { 887 } 888 889 protected: 890 bool 891 DoExecute (Args& command, 892 CommandReturnObject &result) 893 { 894 Process *process = m_interpreter.GetExecutionContext().GetProcessPtr(); 895 if (process == NULL) 896 { 897 result.AppendError ("must have a valid process in order to detach"); 898 result.SetStatus (eReturnStatusFailed); 899 return false; 900 } 901 902 result.AppendMessageWithFormat ("Detaching from process %" PRIu64 "\n", process->GetID()); 903 Error error (process->Detach()); 904 if (error.Success()) 905 { 906 result.SetStatus (eReturnStatusSuccessFinishResult); 907 } 908 else 909 { 910 result.AppendErrorWithFormat ("Detach failed: %s\n", error.AsCString()); 911 result.SetStatus (eReturnStatusFailed); 912 return false; 913 } 914 return result.Succeeded(); 915 } 916 }; 917 918 //------------------------------------------------------------------------- 919 // CommandObjectProcessConnect 920 //------------------------------------------------------------------------- 921 #pragma mark CommandObjectProcessConnect 922 923 class CommandObjectProcessConnect : public CommandObjectParsed 924 { 925 public: 926 927 class CommandOptions : public Options 928 { 929 public: 930 931 CommandOptions (CommandInterpreter &interpreter) : 932 Options(interpreter) 933 { 934 // Keep default values of all options in one place: OptionParsingStarting () 935 OptionParsingStarting (); 936 } 937 938 ~CommandOptions () 939 { 940 } 941 942 Error 943 SetOptionValue (uint32_t option_idx, const char *option_arg) 944 { 945 Error error; 946 const int short_option = m_getopt_table[option_idx].val; 947 948 switch (short_option) 949 { 950 case 'p': 951 plugin_name.assign (option_arg); 952 break; 953 954 default: 955 error.SetErrorStringWithFormat("invalid short option character '%c'", short_option); 956 break; 957 } 958 return error; 959 } 960 961 void 962 OptionParsingStarting () 963 { 964 plugin_name.clear(); 965 } 966 967 const OptionDefinition* 968 GetDefinitions () 969 { 970 return g_option_table; 971 } 972 973 // Options table: Required for subclasses of Options. 974 975 static OptionDefinition g_option_table[]; 976 977 // Instance variables to hold the values for command options. 978 979 std::string plugin_name; 980 }; 981 982 CommandObjectProcessConnect (CommandInterpreter &interpreter) : 983 CommandObjectParsed (interpreter, 984 "process connect", 985 "Connect to a remote debug service.", 986 "process connect <remote-url>", 987 0), 988 m_options (interpreter) 989 { 990 } 991 992 ~CommandObjectProcessConnect () 993 { 994 } 995 996 997 Options * 998 GetOptions () 999 { 1000 return &m_options; 1001 } 1002 1003 protected: 1004 bool 1005 DoExecute (Args& command, 1006 CommandReturnObject &result) 1007 { 1008 1009 TargetSP target_sp (m_interpreter.GetDebugger().GetSelectedTarget()); 1010 Error error; 1011 Process *process = m_interpreter.GetExecutionContext().GetProcessPtr(); 1012 if (process) 1013 { 1014 if (process->IsAlive()) 1015 { 1016 result.AppendErrorWithFormat ("Process %" PRIu64 " is currently being debugged, kill the process before connecting.\n", 1017 process->GetID()); 1018 result.SetStatus (eReturnStatusFailed); 1019 return false; 1020 } 1021 } 1022 1023 if (!target_sp) 1024 { 1025 // If there isn't a current target create one. 1026 1027 error = m_interpreter.GetDebugger().GetTargetList().CreateTarget (m_interpreter.GetDebugger(), 1028 NULL, 1029 NULL, 1030 false, 1031 NULL, // No platform options 1032 target_sp); 1033 if (!target_sp || error.Fail()) 1034 { 1035 result.AppendError(error.AsCString("Error creating target")); 1036 result.SetStatus (eReturnStatusFailed); 1037 return false; 1038 } 1039 m_interpreter.GetDebugger().GetTargetList().SetSelectedTarget(target_sp.get()); 1040 } 1041 1042 if (command.GetArgumentCount() == 1) 1043 { 1044 const char *plugin_name = NULL; 1045 if (!m_options.plugin_name.empty()) 1046 plugin_name = m_options.plugin_name.c_str(); 1047 1048 const char *remote_url = command.GetArgumentAtIndex(0); 1049 process = target_sp->CreateProcess (m_interpreter.GetDebugger().GetListener(), plugin_name, NULL).get(); 1050 1051 if (process) 1052 { 1053 error = process->ConnectRemote (&process->GetTarget().GetDebugger().GetOutputStream(), remote_url); 1054 1055 if (error.Fail()) 1056 { 1057 result.AppendError(error.AsCString("Remote connect failed")); 1058 result.SetStatus (eReturnStatusFailed); 1059 target_sp->DeleteCurrentProcess(); 1060 return false; 1061 } 1062 } 1063 else 1064 { 1065 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", 1066 m_cmd_name.c_str()); 1067 result.SetStatus (eReturnStatusFailed); 1068 } 1069 } 1070 else 1071 { 1072 result.AppendErrorWithFormat ("'%s' takes exactly one argument:\nUsage: %s\n", 1073 m_cmd_name.c_str(), 1074 m_cmd_syntax.c_str()); 1075 result.SetStatus (eReturnStatusFailed); 1076 } 1077 return result.Succeeded(); 1078 } 1079 1080 CommandOptions m_options; 1081 }; 1082 1083 OptionDefinition 1084 CommandObjectProcessConnect::CommandOptions::g_option_table[] = 1085 { 1086 { LLDB_OPT_SET_ALL, false, "plugin", 'p', required_argument, NULL, 0, eArgTypePlugin, "Name of the process plugin you want to use."}, 1087 { 0, false, NULL, 0 , 0, NULL, 0, eArgTypeNone, NULL } 1088 }; 1089 1090 //------------------------------------------------------------------------- 1091 // CommandObjectProcessPlugin 1092 //------------------------------------------------------------------------- 1093 #pragma mark CommandObjectProcessPlugin 1094 1095 class CommandObjectProcessPlugin : public CommandObjectProxy 1096 { 1097 public: 1098 1099 CommandObjectProcessPlugin (CommandInterpreter &interpreter) : 1100 CommandObjectProxy (interpreter, 1101 "process plugin", 1102 "Send a custom command to the current process plug-in.", 1103 "process plugin <args>", 1104 0) 1105 { 1106 } 1107 1108 ~CommandObjectProcessPlugin () 1109 { 1110 } 1111 1112 virtual CommandObject * 1113 GetProxyCommandObject() 1114 { 1115 Process *process = m_interpreter.GetExecutionContext().GetProcessPtr(); 1116 if (process) 1117 return process->GetPluginCommandObject(); 1118 return NULL; 1119 } 1120 }; 1121 1122 1123 //------------------------------------------------------------------------- 1124 // CommandObjectProcessLoad 1125 //------------------------------------------------------------------------- 1126 #pragma mark CommandObjectProcessLoad 1127 1128 class CommandObjectProcessLoad : public CommandObjectParsed 1129 { 1130 public: 1131 1132 CommandObjectProcessLoad (CommandInterpreter &interpreter) : 1133 CommandObjectParsed (interpreter, 1134 "process load", 1135 "Load a shared library into the current process.", 1136 "process load <filename> [<filename> ...]", 1137 eFlagProcessMustBeLaunched | eFlagProcessMustBePaused) 1138 { 1139 } 1140 1141 ~CommandObjectProcessLoad () 1142 { 1143 } 1144 1145 protected: 1146 bool 1147 DoExecute (Args& command, 1148 CommandReturnObject &result) 1149 { 1150 Process *process = m_interpreter.GetExecutionContext().GetProcessPtr(); 1151 if (process == NULL) 1152 { 1153 result.AppendError ("must have a valid process in order to load a shared library"); 1154 result.SetStatus (eReturnStatusFailed); 1155 return false; 1156 } 1157 1158 const uint32_t argc = command.GetArgumentCount(); 1159 1160 for (uint32_t i=0; i<argc; ++i) 1161 { 1162 Error error; 1163 const char *image_path = command.GetArgumentAtIndex(i); 1164 FileSpec image_spec (image_path, false); 1165 process->GetTarget().GetPlatform()->ResolveRemotePath(image_spec, image_spec); 1166 uint32_t image_token = process->LoadImage(image_spec, error); 1167 if (image_token != LLDB_INVALID_IMAGE_TOKEN) 1168 { 1169 result.AppendMessageWithFormat ("Loading \"%s\"...ok\nImage %u loaded.\n", image_path, image_token); 1170 result.SetStatus (eReturnStatusSuccessFinishResult); 1171 } 1172 else 1173 { 1174 result.AppendErrorWithFormat ("failed to load '%s': %s", image_path, error.AsCString()); 1175 result.SetStatus (eReturnStatusFailed); 1176 } 1177 } 1178 return result.Succeeded(); 1179 } 1180 }; 1181 1182 1183 //------------------------------------------------------------------------- 1184 // CommandObjectProcessUnload 1185 //------------------------------------------------------------------------- 1186 #pragma mark CommandObjectProcessUnload 1187 1188 class CommandObjectProcessUnload : public CommandObjectParsed 1189 { 1190 public: 1191 1192 CommandObjectProcessUnload (CommandInterpreter &interpreter) : 1193 CommandObjectParsed (interpreter, 1194 "process unload", 1195 "Unload a shared library from the current process using the index returned by a previous call to \"process load\".", 1196 "process unload <index>", 1197 eFlagProcessMustBeLaunched | eFlagProcessMustBePaused) 1198 { 1199 } 1200 1201 ~CommandObjectProcessUnload () 1202 { 1203 } 1204 1205 protected: 1206 bool 1207 DoExecute (Args& command, 1208 CommandReturnObject &result) 1209 { 1210 Process *process = m_interpreter.GetExecutionContext().GetProcessPtr(); 1211 if (process == NULL) 1212 { 1213 result.AppendError ("must have a valid process in order to load a shared library"); 1214 result.SetStatus (eReturnStatusFailed); 1215 return false; 1216 } 1217 1218 const uint32_t argc = command.GetArgumentCount(); 1219 1220 for (uint32_t i=0; i<argc; ++i) 1221 { 1222 const char *image_token_cstr = command.GetArgumentAtIndex(i); 1223 uint32_t image_token = Args::StringToUInt32(image_token_cstr, LLDB_INVALID_IMAGE_TOKEN, 0); 1224 if (image_token == LLDB_INVALID_IMAGE_TOKEN) 1225 { 1226 result.AppendErrorWithFormat ("invalid image index argument '%s'", image_token_cstr); 1227 result.SetStatus (eReturnStatusFailed); 1228 break; 1229 } 1230 else 1231 { 1232 Error error (process->UnloadImage(image_token)); 1233 if (error.Success()) 1234 { 1235 result.AppendMessageWithFormat ("Unloading shared library with index %u...ok\n", image_token); 1236 result.SetStatus (eReturnStatusSuccessFinishResult); 1237 } 1238 else 1239 { 1240 result.AppendErrorWithFormat ("failed to unload image: %s", error.AsCString()); 1241 result.SetStatus (eReturnStatusFailed); 1242 break; 1243 } 1244 } 1245 } 1246 return result.Succeeded(); 1247 } 1248 }; 1249 1250 //------------------------------------------------------------------------- 1251 // CommandObjectProcessSignal 1252 //------------------------------------------------------------------------- 1253 #pragma mark CommandObjectProcessSignal 1254 1255 class CommandObjectProcessSignal : public CommandObjectParsed 1256 { 1257 public: 1258 1259 CommandObjectProcessSignal (CommandInterpreter &interpreter) : 1260 CommandObjectParsed (interpreter, 1261 "process signal", 1262 "Send a UNIX signal to the current process being debugged.", 1263 NULL) 1264 { 1265 CommandArgumentEntry arg; 1266 CommandArgumentData signal_arg; 1267 1268 // Define the first (and only) variant of this arg. 1269 signal_arg.arg_type = eArgTypeUnixSignal; 1270 signal_arg.arg_repetition = eArgRepeatPlain; 1271 1272 // There is only one variant this argument could be; put it into the argument entry. 1273 arg.push_back (signal_arg); 1274 1275 // Push the data for the first argument into the m_arguments vector. 1276 m_arguments.push_back (arg); 1277 } 1278 1279 ~CommandObjectProcessSignal () 1280 { 1281 } 1282 1283 protected: 1284 bool 1285 DoExecute (Args& command, 1286 CommandReturnObject &result) 1287 { 1288 Process *process = m_interpreter.GetExecutionContext().GetProcessPtr(); 1289 if (process == NULL) 1290 { 1291 result.AppendError ("no process to signal"); 1292 result.SetStatus (eReturnStatusFailed); 1293 return false; 1294 } 1295 1296 if (command.GetArgumentCount() == 1) 1297 { 1298 int signo = LLDB_INVALID_SIGNAL_NUMBER; 1299 1300 const char *signal_name = command.GetArgumentAtIndex(0); 1301 if (::isxdigit (signal_name[0])) 1302 signo = Args::StringToSInt32(signal_name, LLDB_INVALID_SIGNAL_NUMBER, 0); 1303 else 1304 signo = process->GetUnixSignals().GetSignalNumberFromName (signal_name); 1305 1306 if (signo == LLDB_INVALID_SIGNAL_NUMBER) 1307 { 1308 result.AppendErrorWithFormat ("Invalid signal argument '%s'.\n", command.GetArgumentAtIndex(0)); 1309 result.SetStatus (eReturnStatusFailed); 1310 } 1311 else 1312 { 1313 Error error (process->Signal (signo)); 1314 if (error.Success()) 1315 { 1316 result.SetStatus (eReturnStatusSuccessFinishResult); 1317 } 1318 else 1319 { 1320 result.AppendErrorWithFormat ("Failed to send signal %i: %s\n", signo, error.AsCString()); 1321 result.SetStatus (eReturnStatusFailed); 1322 } 1323 } 1324 } 1325 else 1326 { 1327 result.AppendErrorWithFormat("'%s' takes exactly one signal number argument:\nUsage: %s\n", m_cmd_name.c_str(), 1328 m_cmd_syntax.c_str()); 1329 result.SetStatus (eReturnStatusFailed); 1330 } 1331 return result.Succeeded(); 1332 } 1333 }; 1334 1335 1336 //------------------------------------------------------------------------- 1337 // CommandObjectProcessInterrupt 1338 //------------------------------------------------------------------------- 1339 #pragma mark CommandObjectProcessInterrupt 1340 1341 class CommandObjectProcessInterrupt : public CommandObjectParsed 1342 { 1343 public: 1344 1345 1346 CommandObjectProcessInterrupt (CommandInterpreter &interpreter) : 1347 CommandObjectParsed (interpreter, 1348 "process interrupt", 1349 "Interrupt the current process being debugged.", 1350 "process interrupt", 1351 eFlagProcessMustBeLaunched) 1352 { 1353 } 1354 1355 ~CommandObjectProcessInterrupt () 1356 { 1357 } 1358 1359 protected: 1360 bool 1361 DoExecute (Args& command, 1362 CommandReturnObject &result) 1363 { 1364 Process *process = m_interpreter.GetExecutionContext().GetProcessPtr(); 1365 if (process == NULL) 1366 { 1367 result.AppendError ("no process to halt"); 1368 result.SetStatus (eReturnStatusFailed); 1369 return false; 1370 } 1371 1372 if (command.GetArgumentCount() == 0) 1373 { 1374 Error error(process->Halt ()); 1375 if (error.Success()) 1376 { 1377 result.SetStatus (eReturnStatusSuccessFinishResult); 1378 1379 // Maybe we should add a "SuspendThreadPlans so we 1380 // can halt, and keep in place all the current thread plans. 1381 process->GetThreadList().DiscardThreadPlans(); 1382 } 1383 else 1384 { 1385 result.AppendErrorWithFormat ("Failed to halt process: %s\n", error.AsCString()); 1386 result.SetStatus (eReturnStatusFailed); 1387 } 1388 } 1389 else 1390 { 1391 result.AppendErrorWithFormat("'%s' takes no arguments:\nUsage: %s\n", 1392 m_cmd_name.c_str(), 1393 m_cmd_syntax.c_str()); 1394 result.SetStatus (eReturnStatusFailed); 1395 } 1396 return result.Succeeded(); 1397 } 1398 }; 1399 1400 //------------------------------------------------------------------------- 1401 // CommandObjectProcessKill 1402 //------------------------------------------------------------------------- 1403 #pragma mark CommandObjectProcessKill 1404 1405 class CommandObjectProcessKill : public CommandObjectParsed 1406 { 1407 public: 1408 1409 CommandObjectProcessKill (CommandInterpreter &interpreter) : 1410 CommandObjectParsed (interpreter, 1411 "process kill", 1412 "Terminate the current process being debugged.", 1413 "process kill", 1414 eFlagProcessMustBeLaunched) 1415 { 1416 } 1417 1418 ~CommandObjectProcessKill () 1419 { 1420 } 1421 1422 protected: 1423 bool 1424 DoExecute (Args& command, 1425 CommandReturnObject &result) 1426 { 1427 Process *process = m_interpreter.GetExecutionContext().GetProcessPtr(); 1428 if (process == NULL) 1429 { 1430 result.AppendError ("no process to kill"); 1431 result.SetStatus (eReturnStatusFailed); 1432 return false; 1433 } 1434 1435 if (command.GetArgumentCount() == 0) 1436 { 1437 Error error (process->Destroy()); 1438 if (error.Success()) 1439 { 1440 result.SetStatus (eReturnStatusSuccessFinishResult); 1441 } 1442 else 1443 { 1444 result.AppendErrorWithFormat ("Failed to kill process: %s\n", error.AsCString()); 1445 result.SetStatus (eReturnStatusFailed); 1446 } 1447 } 1448 else 1449 { 1450 result.AppendErrorWithFormat("'%s' takes no arguments:\nUsage: %s\n", 1451 m_cmd_name.c_str(), 1452 m_cmd_syntax.c_str()); 1453 result.SetStatus (eReturnStatusFailed); 1454 } 1455 return result.Succeeded(); 1456 } 1457 }; 1458 1459 //------------------------------------------------------------------------- 1460 // CommandObjectProcessStatus 1461 //------------------------------------------------------------------------- 1462 #pragma mark CommandObjectProcessStatus 1463 1464 class CommandObjectProcessStatus : public CommandObjectParsed 1465 { 1466 public: 1467 CommandObjectProcessStatus (CommandInterpreter &interpreter) : 1468 CommandObjectParsed (interpreter, 1469 "process status", 1470 "Show the current status and location of executing process.", 1471 "process status", 1472 0) 1473 { 1474 } 1475 1476 ~CommandObjectProcessStatus() 1477 { 1478 } 1479 1480 1481 bool 1482 DoExecute (Args& command, CommandReturnObject &result) 1483 { 1484 Stream &strm = result.GetOutputStream(); 1485 result.SetStatus (eReturnStatusSuccessFinishNoResult); 1486 ExecutionContext exe_ctx(m_interpreter.GetExecutionContext()); 1487 Process *process = exe_ctx.GetProcessPtr(); 1488 if (process) 1489 { 1490 const bool only_threads_with_stop_reason = true; 1491 const uint32_t start_frame = 0; 1492 const uint32_t num_frames = 1; 1493 const uint32_t num_frames_with_source = 1; 1494 process->GetStatus(strm); 1495 process->GetThreadStatus (strm, 1496 only_threads_with_stop_reason, 1497 start_frame, 1498 num_frames, 1499 num_frames_with_source); 1500 1501 } 1502 else 1503 { 1504 result.AppendError ("No process."); 1505 result.SetStatus (eReturnStatusFailed); 1506 } 1507 return result.Succeeded(); 1508 } 1509 }; 1510 1511 //------------------------------------------------------------------------- 1512 // CommandObjectProcessHandle 1513 //------------------------------------------------------------------------- 1514 #pragma mark CommandObjectProcessHandle 1515 1516 class CommandObjectProcessHandle : public CommandObjectParsed 1517 { 1518 public: 1519 1520 class CommandOptions : public Options 1521 { 1522 public: 1523 1524 CommandOptions (CommandInterpreter &interpreter) : 1525 Options (interpreter) 1526 { 1527 OptionParsingStarting (); 1528 } 1529 1530 ~CommandOptions () 1531 { 1532 } 1533 1534 Error 1535 SetOptionValue (uint32_t option_idx, const char *option_arg) 1536 { 1537 Error error; 1538 const int short_option = m_getopt_table[option_idx].val; 1539 1540 switch (short_option) 1541 { 1542 case 's': 1543 stop = option_arg; 1544 break; 1545 case 'n': 1546 notify = option_arg; 1547 break; 1548 case 'p': 1549 pass = option_arg; 1550 break; 1551 default: 1552 error.SetErrorStringWithFormat("invalid short option character '%c'", short_option); 1553 break; 1554 } 1555 return error; 1556 } 1557 1558 void 1559 OptionParsingStarting () 1560 { 1561 stop.clear(); 1562 notify.clear(); 1563 pass.clear(); 1564 } 1565 1566 const OptionDefinition* 1567 GetDefinitions () 1568 { 1569 return g_option_table; 1570 } 1571 1572 // Options table: Required for subclasses of Options. 1573 1574 static OptionDefinition g_option_table[]; 1575 1576 // Instance variables to hold the values for command options. 1577 1578 std::string stop; 1579 std::string notify; 1580 std::string pass; 1581 }; 1582 1583 1584 CommandObjectProcessHandle (CommandInterpreter &interpreter) : 1585 CommandObjectParsed (interpreter, 1586 "process handle", 1587 "Show or update what the process and debugger should do with various signals received from the OS.", 1588 NULL), 1589 m_options (interpreter) 1590 { 1591 SetHelpLong ("If no signals are specified, update them all. If no update option is specified, list the current values.\n"); 1592 CommandArgumentEntry arg; 1593 CommandArgumentData signal_arg; 1594 1595 signal_arg.arg_type = eArgTypeUnixSignal; 1596 signal_arg.arg_repetition = eArgRepeatStar; 1597 1598 arg.push_back (signal_arg); 1599 1600 m_arguments.push_back (arg); 1601 } 1602 1603 ~CommandObjectProcessHandle () 1604 { 1605 } 1606 1607 Options * 1608 GetOptions () 1609 { 1610 return &m_options; 1611 } 1612 1613 bool 1614 VerifyCommandOptionValue (const std::string &option, int &real_value) 1615 { 1616 bool okay = true; 1617 1618 bool success = false; 1619 bool tmp_value = Args::StringToBoolean (option.c_str(), false, &success); 1620 1621 if (success && tmp_value) 1622 real_value = 1; 1623 else if (success && !tmp_value) 1624 real_value = 0; 1625 else 1626 { 1627 // If the value isn't 'true' or 'false', it had better be 0 or 1. 1628 real_value = Args::StringToUInt32 (option.c_str(), 3); 1629 if (real_value != 0 && real_value != 1) 1630 okay = false; 1631 } 1632 1633 return okay; 1634 } 1635 1636 void 1637 PrintSignalHeader (Stream &str) 1638 { 1639 str.Printf ("NAME PASS STOP NOTIFY\n"); 1640 str.Printf ("========== ===== ===== ======\n"); 1641 } 1642 1643 void 1644 PrintSignal (Stream &str, int32_t signo, const char *sig_name, UnixSignals &signals) 1645 { 1646 bool stop; 1647 bool suppress; 1648 bool notify; 1649 1650 str.Printf ("%-10s ", sig_name); 1651 if (signals.GetSignalInfo (signo, suppress, stop, notify)) 1652 { 1653 bool pass = !suppress; 1654 str.Printf ("%s %s %s", 1655 (pass ? "true " : "false"), 1656 (stop ? "true " : "false"), 1657 (notify ? "true " : "false")); 1658 } 1659 str.Printf ("\n"); 1660 } 1661 1662 void 1663 PrintSignalInformation (Stream &str, Args &signal_args, int num_valid_signals, UnixSignals &signals) 1664 { 1665 PrintSignalHeader (str); 1666 1667 if (num_valid_signals > 0) 1668 { 1669 size_t num_args = signal_args.GetArgumentCount(); 1670 for (size_t i = 0; i < num_args; ++i) 1671 { 1672 int32_t signo = signals.GetSignalNumberFromName (signal_args.GetArgumentAtIndex (i)); 1673 if (signo != LLDB_INVALID_SIGNAL_NUMBER) 1674 PrintSignal (str, signo, signal_args.GetArgumentAtIndex (i), signals); 1675 } 1676 } 1677 else // Print info for ALL signals 1678 { 1679 int32_t signo = signals.GetFirstSignalNumber(); 1680 while (signo != LLDB_INVALID_SIGNAL_NUMBER) 1681 { 1682 PrintSignal (str, signo, signals.GetSignalAsCString (signo), signals); 1683 signo = signals.GetNextSignalNumber (signo); 1684 } 1685 } 1686 } 1687 1688 protected: 1689 bool 1690 DoExecute (Args &signal_args, CommandReturnObject &result) 1691 { 1692 TargetSP target_sp = m_interpreter.GetDebugger().GetSelectedTarget(); 1693 1694 if (!target_sp) 1695 { 1696 result.AppendError ("No current target;" 1697 " cannot handle signals until you have a valid target and process.\n"); 1698 result.SetStatus (eReturnStatusFailed); 1699 return false; 1700 } 1701 1702 ProcessSP process_sp = target_sp->GetProcessSP(); 1703 1704 if (!process_sp) 1705 { 1706 result.AppendError ("No current process; cannot handle signals until you have a valid process.\n"); 1707 result.SetStatus (eReturnStatusFailed); 1708 return false; 1709 } 1710 1711 int stop_action = -1; // -1 means leave the current setting alone 1712 int pass_action = -1; // -1 means leave the current setting alone 1713 int notify_action = -1; // -1 means leave the current setting alone 1714 1715 if (! m_options.stop.empty() 1716 && ! VerifyCommandOptionValue (m_options.stop, stop_action)) 1717 { 1718 result.AppendError ("Invalid argument for command option --stop; must be true or false.\n"); 1719 result.SetStatus (eReturnStatusFailed); 1720 return false; 1721 } 1722 1723 if (! m_options.notify.empty() 1724 && ! VerifyCommandOptionValue (m_options.notify, notify_action)) 1725 { 1726 result.AppendError ("Invalid argument for command option --notify; must be true or false.\n"); 1727 result.SetStatus (eReturnStatusFailed); 1728 return false; 1729 } 1730 1731 if (! m_options.pass.empty() 1732 && ! VerifyCommandOptionValue (m_options.pass, pass_action)) 1733 { 1734 result.AppendError ("Invalid argument for command option --pass; must be true or false.\n"); 1735 result.SetStatus (eReturnStatusFailed); 1736 return false; 1737 } 1738 1739 size_t num_args = signal_args.GetArgumentCount(); 1740 UnixSignals &signals = process_sp->GetUnixSignals(); 1741 int num_signals_set = 0; 1742 1743 if (num_args > 0) 1744 { 1745 for (size_t i = 0; i < num_args; ++i) 1746 { 1747 int32_t signo = signals.GetSignalNumberFromName (signal_args.GetArgumentAtIndex (i)); 1748 if (signo != LLDB_INVALID_SIGNAL_NUMBER) 1749 { 1750 // Casting the actions as bools here should be okay, because VerifyCommandOptionValue guarantees 1751 // the value is either 0 or 1. 1752 if (stop_action != -1) 1753 signals.SetShouldStop (signo, (bool) stop_action); 1754 if (pass_action != -1) 1755 { 1756 bool suppress = ! ((bool) pass_action); 1757 signals.SetShouldSuppress (signo, suppress); 1758 } 1759 if (notify_action != -1) 1760 signals.SetShouldNotify (signo, (bool) notify_action); 1761 ++num_signals_set; 1762 } 1763 else 1764 { 1765 result.AppendErrorWithFormat ("Invalid signal name '%s'\n", signal_args.GetArgumentAtIndex (i)); 1766 } 1767 } 1768 } 1769 else 1770 { 1771 // No signal specified, if any command options were specified, update ALL signals. 1772 if ((notify_action != -1) || (stop_action != -1) || (pass_action != -1)) 1773 { 1774 if (m_interpreter.Confirm ("Do you really want to update all the signals?", false)) 1775 { 1776 int32_t signo = signals.GetFirstSignalNumber(); 1777 while (signo != LLDB_INVALID_SIGNAL_NUMBER) 1778 { 1779 if (notify_action != -1) 1780 signals.SetShouldNotify (signo, (bool) notify_action); 1781 if (stop_action != -1) 1782 signals.SetShouldStop (signo, (bool) stop_action); 1783 if (pass_action != -1) 1784 { 1785 bool suppress = ! ((bool) pass_action); 1786 signals.SetShouldSuppress (signo, suppress); 1787 } 1788 signo = signals.GetNextSignalNumber (signo); 1789 } 1790 } 1791 } 1792 } 1793 1794 PrintSignalInformation (result.GetOutputStream(), signal_args, num_signals_set, signals); 1795 1796 if (num_signals_set > 0) 1797 result.SetStatus (eReturnStatusSuccessFinishNoResult); 1798 else 1799 result.SetStatus (eReturnStatusFailed); 1800 1801 return result.Succeeded(); 1802 } 1803 1804 CommandOptions m_options; 1805 }; 1806 1807 OptionDefinition 1808 CommandObjectProcessHandle::CommandOptions::g_option_table[] = 1809 { 1810 { 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." }, 1811 { 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." }, 1812 { LLDB_OPT_SET_1, false, "pass", 'p', required_argument, NULL, 0, eArgTypeBoolean, "Whether or not the signal should be passed to the process." }, 1813 { 0, false, NULL, 0, 0, NULL, 0, eArgTypeNone, NULL } 1814 }; 1815 1816 //------------------------------------------------------------------------- 1817 // CommandObjectMultiwordProcess 1818 //------------------------------------------------------------------------- 1819 1820 CommandObjectMultiwordProcess::CommandObjectMultiwordProcess (CommandInterpreter &interpreter) : 1821 CommandObjectMultiword (interpreter, 1822 "process", 1823 "A set of commands for operating on a process.", 1824 "process <subcommand> [<subcommand-options>]") 1825 { 1826 LoadSubCommand ("attach", CommandObjectSP (new CommandObjectProcessAttach (interpreter))); 1827 LoadSubCommand ("launch", CommandObjectSP (new CommandObjectProcessLaunch (interpreter))); 1828 LoadSubCommand ("continue", CommandObjectSP (new CommandObjectProcessContinue (interpreter))); 1829 LoadSubCommand ("connect", CommandObjectSP (new CommandObjectProcessConnect (interpreter))); 1830 LoadSubCommand ("detach", CommandObjectSP (new CommandObjectProcessDetach (interpreter))); 1831 LoadSubCommand ("load", CommandObjectSP (new CommandObjectProcessLoad (interpreter))); 1832 LoadSubCommand ("unload", CommandObjectSP (new CommandObjectProcessUnload (interpreter))); 1833 LoadSubCommand ("signal", CommandObjectSP (new CommandObjectProcessSignal (interpreter))); 1834 LoadSubCommand ("handle", CommandObjectSP (new CommandObjectProcessHandle (interpreter))); 1835 LoadSubCommand ("status", CommandObjectSP (new CommandObjectProcessStatus (interpreter))); 1836 LoadSubCommand ("interrupt", CommandObjectSP (new CommandObjectProcessInterrupt (interpreter))); 1837 LoadSubCommand ("kill", CommandObjectSP (new CommandObjectProcessKill (interpreter))); 1838 LoadSubCommand ("plugin", CommandObjectSP (new CommandObjectProcessPlugin (interpreter))); 1839 } 1840 1841 CommandObjectMultiwordProcess::~CommandObjectMultiwordProcess () 1842 { 1843 } 1844 1845