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