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/Core/PluginManager.h" 24 #include "lldb/Host/Host.h" 25 #include "lldb/Interpreter/Args.h" 26 #include "lldb/Interpreter/Options.h" 27 #include "lldb/Interpreter/CommandInterpreter.h" 28 #include "lldb/Interpreter/CommandReturnObject.h" 29 #include "lldb/Target/Platform.h" 30 #include "lldb/Target/Process.h" 31 #include "lldb/Target/StopInfo.h" 32 #include "lldb/Target/Target.h" 33 #include "lldb/Target/Thread.h" 34 35 using namespace lldb; 36 using namespace lldb_private; 37 38 class CommandObjectProcessLaunchOrAttach : public CommandObjectParsed 39 { 40 public: 41 CommandObjectProcessLaunchOrAttach (CommandInterpreter &interpreter, 42 const char *name, 43 const char *help, 44 const char *syntax, 45 uint32_t flags, 46 const char *new_process_action) : 47 CommandObjectParsed (interpreter, name, help, syntax, flags), 48 m_new_process_action (new_process_action) {} 49 50 virtual ~CommandObjectProcessLaunchOrAttach () {} 51 protected: 52 bool 53 StopProcessIfNecessary (Process *process, StateType &state, CommandReturnObject &result) 54 { 55 state = eStateInvalid; 56 if (process) 57 { 58 state = process->GetState(); 59 60 if (process->IsAlive() && state != eStateConnected) 61 { 62 char message[1024]; 63 if (process->GetState() == eStateAttaching) 64 ::snprintf (message, sizeof(message), "There is a pending attach, abort it and %s?", m_new_process_action.c_str()); 65 else if (process->GetShouldDetach()) 66 ::snprintf (message, sizeof(message), "There is a running process, detach from it and %s?", m_new_process_action.c_str()); 67 else 68 ::snprintf (message, sizeof(message), "There is a running process, kill it and %s?", m_new_process_action.c_str()); 69 70 if (!m_interpreter.Confirm (message, true)) 71 { 72 result.SetStatus (eReturnStatusFailed); 73 return false; 74 } 75 else 76 { 77 if (process->GetShouldDetach()) 78 { 79 bool keep_stopped = false; 80 Error detach_error (process->Detach(keep_stopped)); 81 if (detach_error.Success()) 82 { 83 result.SetStatus (eReturnStatusSuccessFinishResult); 84 process = NULL; 85 } 86 else 87 { 88 result.AppendErrorWithFormat ("Failed to detach from process: %s\n", detach_error.AsCString()); 89 result.SetStatus (eReturnStatusFailed); 90 } 91 } 92 else 93 { 94 Error destroy_error (process->Destroy()); 95 if (destroy_error.Success()) 96 { 97 result.SetStatus (eReturnStatusSuccessFinishResult); 98 process = NULL; 99 } 100 else 101 { 102 result.AppendErrorWithFormat ("Failed to kill process: %s\n", destroy_error.AsCString()); 103 result.SetStatus (eReturnStatusFailed); 104 } 105 } 106 } 107 } 108 } 109 return result.Succeeded(); 110 } 111 std::string m_new_process_action; 112 }; 113 //------------------------------------------------------------------------- 114 // CommandObjectProcessLaunch 115 //------------------------------------------------------------------------- 116 #pragma mark CommandObjectProcessLaunch 117 class CommandObjectProcessLaunch : public CommandObjectProcessLaunchOrAttach 118 { 119 public: 120 121 CommandObjectProcessLaunch (CommandInterpreter &interpreter) : 122 CommandObjectProcessLaunchOrAttach (interpreter, 123 "process launch", 124 "Launch the executable in the debugger.", 125 NULL, 126 eFlagRequiresTarget, 127 "restart"), 128 m_options (interpreter) 129 { 130 CommandArgumentEntry arg; 131 CommandArgumentData run_args_arg; 132 133 // Define the first (and only) variant of this arg. 134 run_args_arg.arg_type = eArgTypeRunArgs; 135 run_args_arg.arg_repetition = eArgRepeatOptional; 136 137 // There is only one variant this argument could be; put it into the argument entry. 138 arg.push_back (run_args_arg); 139 140 // Push the data for the first argument into the m_arguments vector. 141 m_arguments.push_back (arg); 142 } 143 144 145 ~CommandObjectProcessLaunch () 146 { 147 } 148 149 virtual int 150 HandleArgumentCompletion (Args &input, 151 int &cursor_index, 152 int &cursor_char_position, 153 OptionElementVector &opt_element_vector, 154 int match_start_point, 155 int max_return_elements, 156 bool &word_complete, 157 StringList &matches) 158 { 159 std::string completion_str (input.GetArgumentAtIndex(cursor_index)); 160 completion_str.erase (cursor_char_position); 161 162 CommandCompletions::InvokeCommonCompletionCallbacks (m_interpreter, 163 CommandCompletions::eDiskFileCompletion, 164 completion_str.c_str(), 165 match_start_point, 166 max_return_elements, 167 NULL, 168 word_complete, 169 matches); 170 return matches.GetSize(); 171 } 172 173 Options * 174 GetOptions () 175 { 176 return &m_options; 177 } 178 179 virtual const char *GetRepeatCommand (Args ¤t_command_args, uint32_t index) 180 { 181 // No repeat for "process launch"... 182 return ""; 183 } 184 185 protected: 186 bool 187 DoExecute (Args& launch_args, CommandReturnObject &result) 188 { 189 Debugger &debugger = m_interpreter.GetDebugger(); 190 Target *target = debugger.GetSelectedTarget().get(); 191 // If our listener is NULL, users aren't allows to launch 192 ModuleSP exe_module_sp = target->GetExecutableModule(); 193 194 if (exe_module_sp == NULL) 195 { 196 result.AppendError ("no file in target, create a debug target using the 'target create' command"); 197 result.SetStatus (eReturnStatusFailed); 198 return false; 199 } 200 201 StateType state = eStateInvalid; 202 203 if (!StopProcessIfNecessary(m_exe_ctx.GetProcessPtr(), state, result)) 204 return false; 205 206 const char *target_settings_argv0 = target->GetArg0(); 207 208 if (target->GetDisableASLR()) 209 m_options.launch_info.GetFlags().Set (eLaunchFlagDisableASLR); 210 211 if (target->GetDetachOnError()) 212 m_options.launch_info.GetFlags().Set (eLaunchFlagDetachOnError); 213 214 if (target->GetDisableSTDIO()) 215 m_options.launch_info.GetFlags().Set (eLaunchFlagDisableSTDIO); 216 217 Args environment; 218 target->GetEnvironmentAsArgs (environment); 219 if (environment.GetArgumentCount() > 0) 220 m_options.launch_info.GetEnvironmentEntries ().AppendArguments (environment); 221 222 if (target_settings_argv0) 223 { 224 m_options.launch_info.GetArguments().AppendArgument (target_settings_argv0); 225 m_options.launch_info.SetExecutableFile(exe_module_sp->GetPlatformFileSpec(), false); 226 } 227 else 228 { 229 m_options.launch_info.SetExecutableFile(exe_module_sp->GetPlatformFileSpec(), true); 230 } 231 232 if (launch_args.GetArgumentCount() == 0) 233 { 234 Args target_setting_args; 235 if (target->GetRunArguments(target_setting_args)) 236 m_options.launch_info.GetArguments().AppendArguments (target_setting_args); 237 } 238 else 239 { 240 m_options.launch_info.GetArguments().AppendArguments (launch_args); 241 // Save the arguments for subsequent runs in the current target. 242 target->SetRunArguments (launch_args); 243 } 244 245 Error error = target->Launch(debugger.GetListener(), m_options.launch_info); 246 247 if (error.Success()) 248 { 249 const char *archname = exe_module_sp->GetArchitecture().GetArchitectureName(); 250 ProcessSP process_sp (target->GetProcessSP()); 251 if (process_sp) 252 { 253 result.AppendMessageWithFormat ("Process %" PRIu64 " launched: '%s' (%s)\n", process_sp->GetID(), exe_module_sp->GetFileSpec().GetPath().c_str(), archname); 254 result.SetStatus (eReturnStatusSuccessFinishResult); 255 result.SetDidChangeProcessState (true); 256 } 257 else 258 { 259 result.AppendError("no error returned from Target::Launch, and target has no process"); 260 result.SetStatus (eReturnStatusFailed); 261 } 262 } 263 else 264 { 265 result.AppendError(error.AsCString()); 266 result.SetStatus (eReturnStatusFailed); 267 } 268 return result.Succeeded(); 269 } 270 271 protected: 272 ProcessLaunchCommandOptions m_options; 273 }; 274 275 276 //#define SET1 LLDB_OPT_SET_1 277 //#define SET2 LLDB_OPT_SET_2 278 //#define SET3 LLDB_OPT_SET_3 279 // 280 //OptionDefinition 281 //CommandObjectProcessLaunch::CommandOptions::g_option_table[] = 282 //{ 283 //{ SET1 | SET2 | SET3, false, "stop-at-entry", 's', OptionParser::eNoArgument, NULL, 0, eArgTypeNone, "Stop at the entry point of the program when launching a process."}, 284 //{ SET1 , false, "stdin", 'i', OptionParser::eRequiredArgument, NULL, 0, eArgTypeDirectoryName, "Redirect stdin for the process to <path>."}, 285 //{ SET1 , false, "stdout", 'o', OptionParser::eRequiredArgument, NULL, 0, eArgTypeDirectoryName, "Redirect stdout for the process to <path>."}, 286 //{ SET1 , false, "stderr", 'e', OptionParser::eRequiredArgument, NULL, 0, eArgTypeDirectoryName, "Redirect stderr for the process to <path>."}, 287 //{ SET1 | SET2 | SET3, false, "plugin", 'p', OptionParser::eRequiredArgument, NULL, 0, eArgTypePlugin, "Name of the process plugin you want to use."}, 288 //{ SET2 , false, "tty", 't', OptionParser::eOptionalArgument, 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."}, 289 //{ SET3, false, "no-stdio", 'n', OptionParser::eNoArgument, NULL, 0, eArgTypeNone, "Do not set up for terminal I/O to go to running process."}, 290 //{ SET1 | SET2 | SET3, false, "working-dir", 'w', OptionParser::eRequiredArgument, NULL, 0, eArgTypeDirectoryName, "Set the current working directory to <path> when running the inferior."}, 291 //{ 0, false, NULL, 0, 0, NULL, 0, eArgTypeNone, NULL } 292 //}; 293 // 294 //#undef SET1 295 //#undef SET2 296 //#undef SET3 297 298 //------------------------------------------------------------------------- 299 // CommandObjectProcessAttach 300 //------------------------------------------------------------------------- 301 #pragma mark CommandObjectProcessAttach 302 class CommandObjectProcessAttach : public CommandObjectProcessLaunchOrAttach 303 { 304 public: 305 306 class CommandOptions : public Options 307 { 308 public: 309 310 CommandOptions (CommandInterpreter &interpreter) : 311 Options(interpreter) 312 { 313 // Keep default values of all options in one place: OptionParsingStarting () 314 OptionParsingStarting (); 315 } 316 317 ~CommandOptions () 318 { 319 } 320 321 Error 322 SetOptionValue (uint32_t option_idx, const char *option_arg) 323 { 324 Error error; 325 const int short_option = m_getopt_table[option_idx].val; 326 bool success = false; 327 switch (short_option) 328 { 329 case 'c': 330 attach_info.SetContinueOnceAttached(true); 331 break; 332 333 case 'p': 334 { 335 lldb::pid_t pid = Args::StringToUInt32 (option_arg, LLDB_INVALID_PROCESS_ID, 0, &success); 336 if (!success || pid == LLDB_INVALID_PROCESS_ID) 337 { 338 error.SetErrorStringWithFormat("invalid process ID '%s'", option_arg); 339 } 340 else 341 { 342 attach_info.SetProcessID (pid); 343 } 344 } 345 break; 346 347 case 'P': 348 attach_info.SetProcessPluginName (option_arg); 349 break; 350 351 case 'n': 352 attach_info.GetExecutableFile().SetFile(option_arg, false); 353 break; 354 355 case 'w': 356 attach_info.SetWaitForLaunch(true); 357 break; 358 359 case 'i': 360 attach_info.SetIgnoreExisting(false); 361 break; 362 363 default: 364 error.SetErrorStringWithFormat("invalid short option character '%c'", short_option); 365 break; 366 } 367 return error; 368 } 369 370 void 371 OptionParsingStarting () 372 { 373 attach_info.Clear(); 374 } 375 376 const OptionDefinition* 377 GetDefinitions () 378 { 379 return g_option_table; 380 } 381 382 virtual bool 383 HandleOptionArgumentCompletion (Args &input, 384 int cursor_index, 385 int char_pos, 386 OptionElementVector &opt_element_vector, 387 int opt_element_index, 388 int match_start_point, 389 int max_return_elements, 390 bool &word_complete, 391 StringList &matches) 392 { 393 int opt_arg_pos = opt_element_vector[opt_element_index].opt_arg_pos; 394 int opt_defs_index = opt_element_vector[opt_element_index].opt_defs_index; 395 396 // We are only completing the name option for now... 397 398 const OptionDefinition *opt_defs = GetDefinitions(); 399 if (opt_defs[opt_defs_index].short_option == 'n') 400 { 401 // Are we in the name? 402 403 // Look to see if there is a -P argument provided, and if so use that plugin, otherwise 404 // use the default plugin. 405 406 const char *partial_name = NULL; 407 partial_name = input.GetArgumentAtIndex(opt_arg_pos); 408 409 PlatformSP platform_sp (m_interpreter.GetPlatform (true)); 410 if (platform_sp) 411 { 412 ProcessInstanceInfoList process_infos; 413 ProcessInstanceInfoMatch match_info; 414 if (partial_name) 415 { 416 match_info.GetProcessInfo().GetExecutableFile().SetFile(partial_name, false); 417 match_info.SetNameMatchType(eNameMatchStartsWith); 418 } 419 platform_sp->FindProcesses (match_info, process_infos); 420 const size_t num_matches = process_infos.GetSize(); 421 if (num_matches > 0) 422 { 423 for (size_t i=0; i<num_matches; ++i) 424 { 425 matches.AppendString (process_infos.GetProcessNameAtIndex(i), 426 process_infos.GetProcessNameLengthAtIndex(i)); 427 } 428 } 429 } 430 } 431 432 return false; 433 } 434 435 // Options table: Required for subclasses of Options. 436 437 static OptionDefinition g_option_table[]; 438 439 // Instance variables to hold the values for command options. 440 441 ProcessAttachInfo attach_info; 442 }; 443 444 CommandObjectProcessAttach (CommandInterpreter &interpreter) : 445 CommandObjectProcessLaunchOrAttach (interpreter, 446 "process attach", 447 "Attach to a process.", 448 "process attach <cmd-options>", 449 0, 450 "attach"), 451 m_options (interpreter) 452 { 453 } 454 455 ~CommandObjectProcessAttach () 456 { 457 } 458 459 Options * 460 GetOptions () 461 { 462 return &m_options; 463 } 464 465 protected: 466 bool 467 DoExecute (Args& command, 468 CommandReturnObject &result) 469 { 470 Target *target = m_interpreter.GetDebugger().GetSelectedTarget().get(); 471 // N.B. The attach should be synchronous. It doesn't help much to get the prompt back between initiating the attach 472 // and the target actually stopping. So even if the interpreter is set to be asynchronous, we wait for the stop 473 // ourselves here. 474 475 StateType state = eStateInvalid; 476 Process *process = m_exe_ctx.GetProcessPtr(); 477 478 if (!StopProcessIfNecessary (process, state, result)) 479 return false; 480 481 if (target == NULL) 482 { 483 // If there isn't a current target create one. 484 TargetSP new_target_sp; 485 Error error; 486 487 error = m_interpreter.GetDebugger().GetTargetList().CreateTarget (m_interpreter.GetDebugger(), 488 NULL, 489 NULL, 490 false, 491 NULL, // No platform options 492 new_target_sp); 493 target = new_target_sp.get(); 494 if (target == NULL || error.Fail()) 495 { 496 result.AppendError(error.AsCString("Error creating target")); 497 return false; 498 } 499 m_interpreter.GetDebugger().GetTargetList().SetSelectedTarget(target); 500 } 501 502 // Record the old executable module, we want to issue a warning if the process of attaching changed the 503 // current executable (like somebody said "file foo" then attached to a PID whose executable was bar.) 504 505 ModuleSP old_exec_module_sp = target->GetExecutableModule(); 506 ArchSpec old_arch_spec = target->GetArchitecture(); 507 508 if (command.GetArgumentCount()) 509 { 510 result.AppendErrorWithFormat("Invalid arguments for '%s'.\nUsage: %s\n", m_cmd_name.c_str(), m_cmd_syntax.c_str()); 511 result.SetStatus (eReturnStatusFailed); 512 } 513 else 514 { 515 if (state != eStateConnected) 516 { 517 const char *plugin_name = m_options.attach_info.GetProcessPluginName(); 518 process = target->CreateProcess (m_interpreter.GetDebugger().GetListener(), plugin_name, NULL).get(); 519 } 520 521 if (process) 522 { 523 Error error; 524 // If no process info was specified, then use the target executable 525 // name as the process to attach to by default 526 if (!m_options.attach_info.ProcessInfoSpecified ()) 527 { 528 if (old_exec_module_sp) 529 m_options.attach_info.GetExecutableFile().GetFilename() = old_exec_module_sp->GetPlatformFileSpec().GetFilename(); 530 531 if (!m_options.attach_info.ProcessInfoSpecified ()) 532 { 533 error.SetErrorString ("no process specified, create a target with a file, or specify the --pid or --name command option"); 534 } 535 } 536 537 if (error.Success()) 538 { 539 // Update the execution context so the current target and process are now selected 540 // in case we interrupt 541 m_interpreter.UpdateExecutionContext(NULL); 542 ListenerSP listener_sp (new Listener("lldb.CommandObjectProcessAttach.DoExecute.attach.hijack")); 543 m_options.attach_info.SetHijackListener(listener_sp); 544 process->HijackProcessEvents(listener_sp.get()); 545 error = process->Attach (m_options.attach_info); 546 547 if (error.Success()) 548 { 549 result.SetStatus (eReturnStatusSuccessContinuingNoResult); 550 StateType state = process->WaitForProcessToStop (NULL, NULL, false, listener_sp.get()); 551 552 process->RestoreProcessEvents(); 553 554 result.SetDidChangeProcessState (true); 555 556 if (state == eStateStopped) 557 { 558 result.AppendMessageWithFormat ("Process %" PRIu64 " %s\n", process->GetID(), StateAsCString (state)); 559 result.SetStatus (eReturnStatusSuccessFinishNoResult); 560 } 561 else 562 { 563 const char *exit_desc = process->GetExitDescription(); 564 if (exit_desc) 565 result.AppendErrorWithFormat ("attach failed: %s", exit_desc); 566 else 567 result.AppendError ("attach failed: process did not stop (no such process or permission problem?)"); 568 process->Destroy(); 569 result.SetStatus (eReturnStatusFailed); 570 } 571 } 572 else 573 { 574 result.AppendErrorWithFormat ("attach failed: %s\n", error.AsCString()); 575 result.SetStatus (eReturnStatusFailed); 576 } 577 } 578 } 579 } 580 581 if (result.Succeeded()) 582 { 583 // Okay, we're done. Last step is to warn if the executable module has changed: 584 char new_path[PATH_MAX]; 585 ModuleSP new_exec_module_sp (target->GetExecutableModule()); 586 if (!old_exec_module_sp) 587 { 588 // We might not have a module if we attached to a raw pid... 589 if (new_exec_module_sp) 590 { 591 new_exec_module_sp->GetFileSpec().GetPath(new_path, PATH_MAX); 592 result.AppendMessageWithFormat("Executable module set to \"%s\".\n", new_path); 593 } 594 } 595 else if (old_exec_module_sp->GetFileSpec() != new_exec_module_sp->GetFileSpec()) 596 { 597 char old_path[PATH_MAX]; 598 599 old_exec_module_sp->GetFileSpec().GetPath (old_path, PATH_MAX); 600 new_exec_module_sp->GetFileSpec().GetPath (new_path, PATH_MAX); 601 602 result.AppendWarningWithFormat("Executable module changed from \"%s\" to \"%s\".\n", 603 old_path, new_path); 604 } 605 606 if (!old_arch_spec.IsValid()) 607 { 608 result.AppendMessageWithFormat ("Architecture set to: %s.\n", target->GetArchitecture().GetTriple().getTriple().c_str()); 609 } 610 else if (!old_arch_spec.IsExactMatch(target->GetArchitecture())) 611 { 612 result.AppendWarningWithFormat("Architecture changed from %s to %s.\n", 613 old_arch_spec.GetTriple().getTriple().c_str(), 614 target->GetArchitecture().GetTriple().getTriple().c_str()); 615 } 616 617 // This supports the use-case scenario of immediately continuing the process once attached. 618 if (m_options.attach_info.GetContinueOnceAttached()) 619 m_interpreter.HandleCommand("process continue", eLazyBoolNo, result); 620 } 621 return result.Succeeded(); 622 } 623 624 CommandOptions m_options; 625 }; 626 627 628 OptionDefinition 629 CommandObjectProcessAttach::CommandOptions::g_option_table[] = 630 { 631 { LLDB_OPT_SET_ALL, false, "continue",'c', OptionParser::eNoArgument, NULL, NULL, 0, eArgTypeNone, "Immediately continue the process once attached."}, 632 { LLDB_OPT_SET_ALL, false, "plugin", 'P', OptionParser::eRequiredArgument, NULL, NULL, 0, eArgTypePlugin, "Name of the process plugin you want to use."}, 633 { LLDB_OPT_SET_1, false, "pid", 'p', OptionParser::eRequiredArgument, NULL, NULL, 0, eArgTypePid, "The process ID of an existing process to attach to."}, 634 { LLDB_OPT_SET_2, false, "name", 'n', OptionParser::eRequiredArgument, NULL, NULL, 0, eArgTypeProcessName, "The name of the process to attach to."}, 635 { LLDB_OPT_SET_2, false, "include-existing", 'i', OptionParser::eNoArgument, NULL, NULL, 0, eArgTypeNone, "Include existing processes when doing attach -w."}, 636 { LLDB_OPT_SET_2, false, "waitfor", 'w', OptionParser::eNoArgument, NULL, NULL, 0, eArgTypeNone, "Wait for the process with <process-name> to launch."}, 637 { 0, false, NULL, 0, 0, NULL, NULL, 0, eArgTypeNone, NULL } 638 }; 639 640 //------------------------------------------------------------------------- 641 // CommandObjectProcessContinue 642 //------------------------------------------------------------------------- 643 #pragma mark CommandObjectProcessContinue 644 645 class CommandObjectProcessContinue : public CommandObjectParsed 646 { 647 public: 648 649 CommandObjectProcessContinue (CommandInterpreter &interpreter) : 650 CommandObjectParsed (interpreter, 651 "process continue", 652 "Continue execution of all threads in the current process.", 653 "process continue", 654 eFlagRequiresProcess | 655 eFlagTryTargetAPILock | 656 eFlagProcessMustBeLaunched | 657 eFlagProcessMustBePaused ), 658 m_options(interpreter) 659 { 660 } 661 662 663 ~CommandObjectProcessContinue () 664 { 665 } 666 667 protected: 668 669 class CommandOptions : public Options 670 { 671 public: 672 673 CommandOptions (CommandInterpreter &interpreter) : 674 Options(interpreter) 675 { 676 // Keep default values of all options in one place: OptionParsingStarting () 677 OptionParsingStarting (); 678 } 679 680 ~CommandOptions () 681 { 682 } 683 684 Error 685 SetOptionValue (uint32_t option_idx, const char *option_arg) 686 { 687 Error error; 688 const int short_option = m_getopt_table[option_idx].val; 689 bool success = false; 690 switch (short_option) 691 { 692 case 'i': 693 m_ignore = Args::StringToUInt32 (option_arg, 0, 0, &success); 694 if (!success) 695 error.SetErrorStringWithFormat ("invalid value for ignore option: \"%s\", should be a number.", option_arg); 696 break; 697 698 default: 699 error.SetErrorStringWithFormat("invalid short option character '%c'", short_option); 700 break; 701 } 702 return error; 703 } 704 705 void 706 OptionParsingStarting () 707 { 708 m_ignore = 0; 709 } 710 711 const OptionDefinition* 712 GetDefinitions () 713 { 714 return g_option_table; 715 } 716 717 // Options table: Required for subclasses of Options. 718 719 static OptionDefinition g_option_table[]; 720 721 uint32_t m_ignore; 722 }; 723 724 bool 725 DoExecute (Args& command, CommandReturnObject &result) 726 { 727 Process *process = m_exe_ctx.GetProcessPtr(); 728 bool synchronous_execution = m_interpreter.GetSynchronous (); 729 StateType state = process->GetState(); 730 if (state == eStateStopped) 731 { 732 if (command.GetArgumentCount() != 0) 733 { 734 result.AppendErrorWithFormat ("The '%s' command does not take any arguments.\n", m_cmd_name.c_str()); 735 result.SetStatus (eReturnStatusFailed); 736 return false; 737 } 738 739 if (m_options.m_ignore > 0) 740 { 741 ThreadSP sel_thread_sp(process->GetThreadList().GetSelectedThread()); 742 if (sel_thread_sp) 743 { 744 StopInfoSP stop_info_sp = sel_thread_sp->GetStopInfo(); 745 if (stop_info_sp && stop_info_sp->GetStopReason() == eStopReasonBreakpoint) 746 { 747 lldb::break_id_t bp_site_id = (lldb::break_id_t)stop_info_sp->GetValue(); 748 BreakpointSiteSP bp_site_sp(process->GetBreakpointSiteList().FindByID(bp_site_id)); 749 if (bp_site_sp) 750 { 751 const size_t num_owners = bp_site_sp->GetNumberOfOwners(); 752 for (size_t i = 0; i < num_owners; i++) 753 { 754 Breakpoint &bp_ref = bp_site_sp->GetOwnerAtIndex(i)->GetBreakpoint(); 755 if (!bp_ref.IsInternal()) 756 { 757 bp_ref.SetIgnoreCount(m_options.m_ignore); 758 } 759 } 760 } 761 } 762 } 763 } 764 765 { // Scope for thread list mutex: 766 Mutex::Locker locker (process->GetThreadList().GetMutex()); 767 const uint32_t num_threads = process->GetThreadList().GetSize(); 768 769 // Set the actions that the threads should each take when resuming 770 for (uint32_t idx=0; idx<num_threads; ++idx) 771 { 772 const bool override_suspend = false; 773 process->GetThreadList().GetThreadAtIndex(idx)->SetResumeState (eStateRunning, override_suspend); 774 } 775 } 776 777 Error error(process->Resume()); 778 779 if (error.Success()) 780 { 781 // There is a race condition where this thread will return up the call stack to the main command 782 // handler and show an (lldb) prompt before HandlePrivateEvent (from PrivateStateThread) has 783 // a chance to call PushProcessIOHandler(). 784 process->SyncIOHandler(2000); 785 786 result.AppendMessageWithFormat ("Process %" PRIu64 " resuming\n", process->GetID()); 787 if (synchronous_execution) 788 { 789 state = process->WaitForProcessToStop (NULL); 790 791 result.SetDidChangeProcessState (true); 792 result.AppendMessageWithFormat ("Process %" PRIu64 " %s\n", process->GetID(), StateAsCString (state)); 793 result.SetStatus (eReturnStatusSuccessFinishNoResult); 794 } 795 else 796 { 797 result.SetStatus (eReturnStatusSuccessContinuingNoResult); 798 } 799 } 800 else 801 { 802 result.AppendErrorWithFormat("Failed to resume process: %s.\n", error.AsCString()); 803 result.SetStatus (eReturnStatusFailed); 804 } 805 } 806 else 807 { 808 result.AppendErrorWithFormat ("Process cannot be continued from its current state (%s).\n", 809 StateAsCString(state)); 810 result.SetStatus (eReturnStatusFailed); 811 } 812 return result.Succeeded(); 813 } 814 815 Options * 816 GetOptions () 817 { 818 return &m_options; 819 } 820 821 CommandOptions m_options; 822 823 }; 824 825 OptionDefinition 826 CommandObjectProcessContinue::CommandOptions::g_option_table[] = 827 { 828 { LLDB_OPT_SET_ALL, false, "ignore-count",'i', OptionParser::eRequiredArgument, NULL, NULL, 0, eArgTypeUnsignedInteger, 829 "Ignore <N> crossings of the breakpoint (if it exists) for the currently selected thread."}, 830 { 0, false, NULL, 0, 0, NULL, NULL, 0, eArgTypeNone, NULL } 831 }; 832 833 //------------------------------------------------------------------------- 834 // CommandObjectProcessDetach 835 //------------------------------------------------------------------------- 836 #pragma mark CommandObjectProcessDetach 837 838 class CommandObjectProcessDetach : public CommandObjectParsed 839 { 840 public: 841 class CommandOptions : public Options 842 { 843 public: 844 845 CommandOptions (CommandInterpreter &interpreter) : 846 Options (interpreter) 847 { 848 OptionParsingStarting (); 849 } 850 851 ~CommandOptions () 852 { 853 } 854 855 Error 856 SetOptionValue (uint32_t option_idx, const char *option_arg) 857 { 858 Error error; 859 const int short_option = m_getopt_table[option_idx].val; 860 861 switch (short_option) 862 { 863 case 's': 864 bool tmp_result; 865 bool success; 866 tmp_result = Args::StringToBoolean(option_arg, false, &success); 867 if (!success) 868 error.SetErrorStringWithFormat("invalid boolean option: \"%s\"", option_arg); 869 else 870 { 871 if (tmp_result) 872 m_keep_stopped = eLazyBoolYes; 873 else 874 m_keep_stopped = eLazyBoolNo; 875 } 876 break; 877 default: 878 error.SetErrorStringWithFormat("invalid short option character '%c'", short_option); 879 break; 880 } 881 return error; 882 } 883 884 void 885 OptionParsingStarting () 886 { 887 m_keep_stopped = eLazyBoolCalculate; 888 } 889 890 const OptionDefinition* 891 GetDefinitions () 892 { 893 return g_option_table; 894 } 895 896 // Options table: Required for subclasses of Options. 897 898 static OptionDefinition g_option_table[]; 899 900 // Instance variables to hold the values for command options. 901 LazyBool m_keep_stopped; 902 }; 903 904 CommandObjectProcessDetach (CommandInterpreter &interpreter) : 905 CommandObjectParsed (interpreter, 906 "process detach", 907 "Detach from the current process being debugged.", 908 "process detach", 909 eFlagRequiresProcess | 910 eFlagTryTargetAPILock | 911 eFlagProcessMustBeLaunched), 912 m_options(interpreter) 913 { 914 } 915 916 ~CommandObjectProcessDetach () 917 { 918 } 919 920 Options * 921 GetOptions () 922 { 923 return &m_options; 924 } 925 926 927 protected: 928 bool 929 DoExecute (Args& command, CommandReturnObject &result) 930 { 931 Process *process = m_exe_ctx.GetProcessPtr(); 932 // FIXME: This will be a Command Option: 933 bool keep_stopped; 934 if (m_options.m_keep_stopped == eLazyBoolCalculate) 935 { 936 // Check the process default: 937 if (process->GetDetachKeepsStopped()) 938 keep_stopped = true; 939 else 940 keep_stopped = false; 941 } 942 else if (m_options.m_keep_stopped == eLazyBoolYes) 943 keep_stopped = true; 944 else 945 keep_stopped = false; 946 947 Error error (process->Detach(keep_stopped)); 948 if (error.Success()) 949 { 950 result.SetStatus (eReturnStatusSuccessFinishResult); 951 } 952 else 953 { 954 result.AppendErrorWithFormat ("Detach failed: %s\n", error.AsCString()); 955 result.SetStatus (eReturnStatusFailed); 956 return false; 957 } 958 return result.Succeeded(); 959 } 960 961 CommandOptions m_options; 962 }; 963 964 OptionDefinition 965 CommandObjectProcessDetach::CommandOptions::g_option_table[] = 966 { 967 { LLDB_OPT_SET_1, false, "keep-stopped", 's', OptionParser::eRequiredArgument, NULL, NULL, 0, eArgTypeBoolean, "Whether or not the process should be kept stopped on detach (if possible)." }, 968 { 0, false, NULL, 0, 0, NULL, NULL, 0, eArgTypeNone, NULL } 969 }; 970 971 //------------------------------------------------------------------------- 972 // CommandObjectProcessConnect 973 //------------------------------------------------------------------------- 974 #pragma mark CommandObjectProcessConnect 975 976 class CommandObjectProcessConnect : public CommandObjectParsed 977 { 978 public: 979 980 class CommandOptions : public Options 981 { 982 public: 983 984 CommandOptions (CommandInterpreter &interpreter) : 985 Options(interpreter) 986 { 987 // Keep default values of all options in one place: OptionParsingStarting () 988 OptionParsingStarting (); 989 } 990 991 ~CommandOptions () 992 { 993 } 994 995 Error 996 SetOptionValue (uint32_t option_idx, const char *option_arg) 997 { 998 Error error; 999 const int short_option = m_getopt_table[option_idx].val; 1000 1001 switch (short_option) 1002 { 1003 case 'p': 1004 plugin_name.assign (option_arg); 1005 break; 1006 1007 default: 1008 error.SetErrorStringWithFormat("invalid short option character '%c'", short_option); 1009 break; 1010 } 1011 return error; 1012 } 1013 1014 void 1015 OptionParsingStarting () 1016 { 1017 plugin_name.clear(); 1018 } 1019 1020 const OptionDefinition* 1021 GetDefinitions () 1022 { 1023 return g_option_table; 1024 } 1025 1026 // Options table: Required for subclasses of Options. 1027 1028 static OptionDefinition g_option_table[]; 1029 1030 // Instance variables to hold the values for command options. 1031 1032 std::string plugin_name; 1033 }; 1034 1035 CommandObjectProcessConnect (CommandInterpreter &interpreter) : 1036 CommandObjectParsed (interpreter, 1037 "process connect", 1038 "Connect to a remote debug service.", 1039 "process connect <remote-url>", 1040 0), 1041 m_options (interpreter) 1042 { 1043 } 1044 1045 ~CommandObjectProcessConnect () 1046 { 1047 } 1048 1049 1050 Options * 1051 GetOptions () 1052 { 1053 return &m_options; 1054 } 1055 1056 protected: 1057 bool 1058 DoExecute (Args& command, 1059 CommandReturnObject &result) 1060 { 1061 1062 TargetSP target_sp (m_interpreter.GetDebugger().GetSelectedTarget()); 1063 Error error; 1064 Process *process = m_exe_ctx.GetProcessPtr(); 1065 if (process) 1066 { 1067 if (process->IsAlive()) 1068 { 1069 result.AppendErrorWithFormat ("Process %" PRIu64 " is currently being debugged, kill the process before connecting.\n", 1070 process->GetID()); 1071 result.SetStatus (eReturnStatusFailed); 1072 return false; 1073 } 1074 } 1075 1076 if (!target_sp) 1077 { 1078 // If there isn't a current target create one. 1079 1080 error = m_interpreter.GetDebugger().GetTargetList().CreateTarget (m_interpreter.GetDebugger(), 1081 NULL, 1082 NULL, 1083 false, 1084 NULL, // No platform options 1085 target_sp); 1086 if (!target_sp || error.Fail()) 1087 { 1088 result.AppendError(error.AsCString("Error creating target")); 1089 result.SetStatus (eReturnStatusFailed); 1090 return false; 1091 } 1092 m_interpreter.GetDebugger().GetTargetList().SetSelectedTarget(target_sp.get()); 1093 } 1094 1095 if (command.GetArgumentCount() == 1) 1096 { 1097 const char *plugin_name = NULL; 1098 if (!m_options.plugin_name.empty()) 1099 plugin_name = m_options.plugin_name.c_str(); 1100 1101 const char *remote_url = command.GetArgumentAtIndex(0); 1102 process = target_sp->CreateProcess (m_interpreter.GetDebugger().GetListener(), plugin_name, NULL).get(); 1103 1104 if (process) 1105 { 1106 error = process->ConnectRemote (process->GetTarget().GetDebugger().GetOutputFile().get(), remote_url); 1107 1108 if (error.Fail()) 1109 { 1110 result.AppendError(error.AsCString("Remote connect failed")); 1111 result.SetStatus (eReturnStatusFailed); 1112 target_sp->DeleteCurrentProcess(); 1113 return false; 1114 } 1115 } 1116 else 1117 { 1118 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", 1119 remote_url); 1120 result.SetStatus (eReturnStatusFailed); 1121 } 1122 } 1123 else 1124 { 1125 result.AppendErrorWithFormat ("'%s' takes exactly one argument:\nUsage: %s\n", 1126 m_cmd_name.c_str(), 1127 m_cmd_syntax.c_str()); 1128 result.SetStatus (eReturnStatusFailed); 1129 } 1130 return result.Succeeded(); 1131 } 1132 1133 CommandOptions m_options; 1134 }; 1135 1136 OptionDefinition 1137 CommandObjectProcessConnect::CommandOptions::g_option_table[] = 1138 { 1139 { LLDB_OPT_SET_ALL, false, "plugin", 'p', OptionParser::eRequiredArgument, NULL, NULL, 0, eArgTypePlugin, "Name of the process plugin you want to use."}, 1140 { 0, false, NULL, 0 , 0, NULL, NULL, 0, eArgTypeNone, NULL } 1141 }; 1142 1143 //------------------------------------------------------------------------- 1144 // CommandObjectProcessPlugin 1145 //------------------------------------------------------------------------- 1146 #pragma mark CommandObjectProcessPlugin 1147 1148 class CommandObjectProcessPlugin : public CommandObjectProxy 1149 { 1150 public: 1151 1152 CommandObjectProcessPlugin (CommandInterpreter &interpreter) : 1153 CommandObjectProxy (interpreter, 1154 "process plugin", 1155 "Send a custom command to the current process plug-in.", 1156 "process plugin <args>", 1157 0) 1158 { 1159 } 1160 1161 ~CommandObjectProcessPlugin () 1162 { 1163 } 1164 1165 virtual CommandObject * 1166 GetProxyCommandObject() 1167 { 1168 Process *process = m_interpreter.GetExecutionContext().GetProcessPtr(); 1169 if (process) 1170 return process->GetPluginCommandObject(); 1171 return NULL; 1172 } 1173 }; 1174 1175 1176 //------------------------------------------------------------------------- 1177 // CommandObjectProcessLoad 1178 //------------------------------------------------------------------------- 1179 #pragma mark CommandObjectProcessLoad 1180 1181 class CommandObjectProcessLoad : public CommandObjectParsed 1182 { 1183 public: 1184 1185 CommandObjectProcessLoad (CommandInterpreter &interpreter) : 1186 CommandObjectParsed (interpreter, 1187 "process load", 1188 "Load a shared library into the current process.", 1189 "process load <filename> [<filename> ...]", 1190 eFlagRequiresProcess | 1191 eFlagTryTargetAPILock | 1192 eFlagProcessMustBeLaunched | 1193 eFlagProcessMustBePaused ) 1194 { 1195 } 1196 1197 ~CommandObjectProcessLoad () 1198 { 1199 } 1200 1201 protected: 1202 bool 1203 DoExecute (Args& command, 1204 CommandReturnObject &result) 1205 { 1206 Process *process = m_exe_ctx.GetProcessPtr(); 1207 1208 const size_t argc = command.GetArgumentCount(); 1209 1210 for (uint32_t i=0; i<argc; ++i) 1211 { 1212 Error error; 1213 const char *image_path = command.GetArgumentAtIndex(i); 1214 FileSpec image_spec (image_path, false); 1215 process->GetTarget().GetPlatform()->ResolveRemotePath(image_spec, image_spec); 1216 uint32_t image_token = process->LoadImage(image_spec, error); 1217 if (image_token != LLDB_INVALID_IMAGE_TOKEN) 1218 { 1219 result.AppendMessageWithFormat ("Loading \"%s\"...ok\nImage %u loaded.\n", image_path, image_token); 1220 result.SetStatus (eReturnStatusSuccessFinishResult); 1221 } 1222 else 1223 { 1224 result.AppendErrorWithFormat ("failed to load '%s': %s", image_path, error.AsCString()); 1225 result.SetStatus (eReturnStatusFailed); 1226 } 1227 } 1228 return result.Succeeded(); 1229 } 1230 }; 1231 1232 1233 //------------------------------------------------------------------------- 1234 // CommandObjectProcessUnload 1235 //------------------------------------------------------------------------- 1236 #pragma mark CommandObjectProcessUnload 1237 1238 class CommandObjectProcessUnload : public CommandObjectParsed 1239 { 1240 public: 1241 1242 CommandObjectProcessUnload (CommandInterpreter &interpreter) : 1243 CommandObjectParsed (interpreter, 1244 "process unload", 1245 "Unload a shared library from the current process using the index returned by a previous call to \"process load\".", 1246 "process unload <index>", 1247 eFlagRequiresProcess | 1248 eFlagTryTargetAPILock | 1249 eFlagProcessMustBeLaunched | 1250 eFlagProcessMustBePaused ) 1251 { 1252 } 1253 1254 ~CommandObjectProcessUnload () 1255 { 1256 } 1257 1258 protected: 1259 bool 1260 DoExecute (Args& command, 1261 CommandReturnObject &result) 1262 { 1263 Process *process = m_exe_ctx.GetProcessPtr(); 1264 1265 const size_t argc = command.GetArgumentCount(); 1266 1267 for (uint32_t i=0; i<argc; ++i) 1268 { 1269 const char *image_token_cstr = command.GetArgumentAtIndex(i); 1270 uint32_t image_token = Args::StringToUInt32(image_token_cstr, LLDB_INVALID_IMAGE_TOKEN, 0); 1271 if (image_token == LLDB_INVALID_IMAGE_TOKEN) 1272 { 1273 result.AppendErrorWithFormat ("invalid image index argument '%s'", image_token_cstr); 1274 result.SetStatus (eReturnStatusFailed); 1275 break; 1276 } 1277 else 1278 { 1279 Error error (process->UnloadImage(image_token)); 1280 if (error.Success()) 1281 { 1282 result.AppendMessageWithFormat ("Unloading shared library with index %u...ok\n", image_token); 1283 result.SetStatus (eReturnStatusSuccessFinishResult); 1284 } 1285 else 1286 { 1287 result.AppendErrorWithFormat ("failed to unload image: %s", error.AsCString()); 1288 result.SetStatus (eReturnStatusFailed); 1289 break; 1290 } 1291 } 1292 } 1293 return result.Succeeded(); 1294 } 1295 }; 1296 1297 //------------------------------------------------------------------------- 1298 // CommandObjectProcessSignal 1299 //------------------------------------------------------------------------- 1300 #pragma mark CommandObjectProcessSignal 1301 1302 class CommandObjectProcessSignal : public CommandObjectParsed 1303 { 1304 public: 1305 1306 CommandObjectProcessSignal (CommandInterpreter &interpreter) : 1307 CommandObjectParsed (interpreter, 1308 "process signal", 1309 "Send a UNIX signal to the current process being debugged.", 1310 NULL, 1311 eFlagRequiresProcess | eFlagTryTargetAPILock) 1312 { 1313 CommandArgumentEntry arg; 1314 CommandArgumentData signal_arg; 1315 1316 // Define the first (and only) variant of this arg. 1317 signal_arg.arg_type = eArgTypeUnixSignal; 1318 signal_arg.arg_repetition = eArgRepeatPlain; 1319 1320 // There is only one variant this argument could be; put it into the argument entry. 1321 arg.push_back (signal_arg); 1322 1323 // Push the data for the first argument into the m_arguments vector. 1324 m_arguments.push_back (arg); 1325 } 1326 1327 ~CommandObjectProcessSignal () 1328 { 1329 } 1330 1331 protected: 1332 bool 1333 DoExecute (Args& command, 1334 CommandReturnObject &result) 1335 { 1336 Process *process = m_exe_ctx.GetProcessPtr(); 1337 1338 if (command.GetArgumentCount() == 1) 1339 { 1340 int signo = LLDB_INVALID_SIGNAL_NUMBER; 1341 1342 const char *signal_name = command.GetArgumentAtIndex(0); 1343 if (::isxdigit (signal_name[0])) 1344 signo = Args::StringToSInt32(signal_name, LLDB_INVALID_SIGNAL_NUMBER, 0); 1345 else 1346 signo = process->GetUnixSignals().GetSignalNumberFromName (signal_name); 1347 1348 if (signo == LLDB_INVALID_SIGNAL_NUMBER) 1349 { 1350 result.AppendErrorWithFormat ("Invalid signal argument '%s'.\n", command.GetArgumentAtIndex(0)); 1351 result.SetStatus (eReturnStatusFailed); 1352 } 1353 else 1354 { 1355 Error error (process->Signal (signo)); 1356 if (error.Success()) 1357 { 1358 result.SetStatus (eReturnStatusSuccessFinishResult); 1359 } 1360 else 1361 { 1362 result.AppendErrorWithFormat ("Failed to send signal %i: %s\n", signo, error.AsCString()); 1363 result.SetStatus (eReturnStatusFailed); 1364 } 1365 } 1366 } 1367 else 1368 { 1369 result.AppendErrorWithFormat("'%s' takes exactly one signal number argument:\nUsage: %s\n", m_cmd_name.c_str(), 1370 m_cmd_syntax.c_str()); 1371 result.SetStatus (eReturnStatusFailed); 1372 } 1373 return result.Succeeded(); 1374 } 1375 }; 1376 1377 1378 //------------------------------------------------------------------------- 1379 // CommandObjectProcessInterrupt 1380 //------------------------------------------------------------------------- 1381 #pragma mark CommandObjectProcessInterrupt 1382 1383 class CommandObjectProcessInterrupt : public CommandObjectParsed 1384 { 1385 public: 1386 1387 1388 CommandObjectProcessInterrupt (CommandInterpreter &interpreter) : 1389 CommandObjectParsed (interpreter, 1390 "process interrupt", 1391 "Interrupt the current process being debugged.", 1392 "process interrupt", 1393 eFlagRequiresProcess | 1394 eFlagTryTargetAPILock | 1395 eFlagProcessMustBeLaunched) 1396 { 1397 } 1398 1399 ~CommandObjectProcessInterrupt () 1400 { 1401 } 1402 1403 protected: 1404 bool 1405 DoExecute (Args& command, 1406 CommandReturnObject &result) 1407 { 1408 Process *process = m_exe_ctx.GetProcessPtr(); 1409 if (process == NULL) 1410 { 1411 result.AppendError ("no process to halt"); 1412 result.SetStatus (eReturnStatusFailed); 1413 return false; 1414 } 1415 1416 if (command.GetArgumentCount() == 0) 1417 { 1418 bool clear_thread_plans = true; 1419 Error error(process->Halt (clear_thread_plans)); 1420 if (error.Success()) 1421 { 1422 result.SetStatus (eReturnStatusSuccessFinishResult); 1423 } 1424 else 1425 { 1426 result.AppendErrorWithFormat ("Failed to halt process: %s\n", error.AsCString()); 1427 result.SetStatus (eReturnStatusFailed); 1428 } 1429 } 1430 else 1431 { 1432 result.AppendErrorWithFormat("'%s' takes no arguments:\nUsage: %s\n", 1433 m_cmd_name.c_str(), 1434 m_cmd_syntax.c_str()); 1435 result.SetStatus (eReturnStatusFailed); 1436 } 1437 return result.Succeeded(); 1438 } 1439 }; 1440 1441 //------------------------------------------------------------------------- 1442 // CommandObjectProcessKill 1443 //------------------------------------------------------------------------- 1444 #pragma mark CommandObjectProcessKill 1445 1446 class CommandObjectProcessKill : public CommandObjectParsed 1447 { 1448 public: 1449 1450 CommandObjectProcessKill (CommandInterpreter &interpreter) : 1451 CommandObjectParsed (interpreter, 1452 "process kill", 1453 "Terminate the current process being debugged.", 1454 "process kill", 1455 eFlagRequiresProcess | 1456 eFlagTryTargetAPILock | 1457 eFlagProcessMustBeLaunched) 1458 { 1459 } 1460 1461 ~CommandObjectProcessKill () 1462 { 1463 } 1464 1465 protected: 1466 bool 1467 DoExecute (Args& command, 1468 CommandReturnObject &result) 1469 { 1470 Process *process = m_exe_ctx.GetProcessPtr(); 1471 if (process == NULL) 1472 { 1473 result.AppendError ("no process to kill"); 1474 result.SetStatus (eReturnStatusFailed); 1475 return false; 1476 } 1477 1478 if (command.GetArgumentCount() == 0) 1479 { 1480 Error error (process->Destroy()); 1481 if (error.Success()) 1482 { 1483 result.SetStatus (eReturnStatusSuccessFinishResult); 1484 } 1485 else 1486 { 1487 result.AppendErrorWithFormat ("Failed to kill process: %s\n", error.AsCString()); 1488 result.SetStatus (eReturnStatusFailed); 1489 } 1490 } 1491 else 1492 { 1493 result.AppendErrorWithFormat("'%s' takes no arguments:\nUsage: %s\n", 1494 m_cmd_name.c_str(), 1495 m_cmd_syntax.c_str()); 1496 result.SetStatus (eReturnStatusFailed); 1497 } 1498 return result.Succeeded(); 1499 } 1500 }; 1501 1502 //------------------------------------------------------------------------- 1503 // CommandObjectProcessSaveCore 1504 //------------------------------------------------------------------------- 1505 #pragma mark CommandObjectProcessSaveCore 1506 1507 class CommandObjectProcessSaveCore : public CommandObjectParsed 1508 { 1509 public: 1510 1511 CommandObjectProcessSaveCore (CommandInterpreter &interpreter) : 1512 CommandObjectParsed (interpreter, 1513 "process save-core", 1514 "Save the current process as a core file using an appropriate file type.", 1515 "process save-core FILE", 1516 eFlagRequiresProcess | 1517 eFlagTryTargetAPILock | 1518 eFlagProcessMustBeLaunched) 1519 { 1520 } 1521 1522 ~CommandObjectProcessSaveCore () 1523 { 1524 } 1525 1526 protected: 1527 bool 1528 DoExecute (Args& command, 1529 CommandReturnObject &result) 1530 { 1531 ProcessSP process_sp = m_exe_ctx.GetProcessSP(); 1532 if (process_sp) 1533 { 1534 if (command.GetArgumentCount() == 1) 1535 { 1536 FileSpec output_file(command.GetArgumentAtIndex(0), false); 1537 Error error = PluginManager::SaveCore(process_sp, output_file); 1538 if (error.Success()) 1539 { 1540 result.SetStatus (eReturnStatusSuccessFinishResult); 1541 } 1542 else 1543 { 1544 result.AppendErrorWithFormat ("Failed to save core file for process: %s\n", error.AsCString()); 1545 result.SetStatus (eReturnStatusFailed); 1546 } 1547 } 1548 else 1549 { 1550 result.AppendErrorWithFormat ("'%s' takes one arguments:\nUsage: %s\n", 1551 m_cmd_name.c_str(), 1552 m_cmd_syntax.c_str()); 1553 result.SetStatus (eReturnStatusFailed); 1554 } 1555 } 1556 else 1557 { 1558 result.AppendError ("invalid process"); 1559 result.SetStatus (eReturnStatusFailed); 1560 return false; 1561 } 1562 1563 return result.Succeeded(); 1564 } 1565 }; 1566 1567 //------------------------------------------------------------------------- 1568 // CommandObjectProcessStatus 1569 //------------------------------------------------------------------------- 1570 #pragma mark CommandObjectProcessStatus 1571 1572 class CommandObjectProcessStatus : public CommandObjectParsed 1573 { 1574 public: 1575 CommandObjectProcessStatus (CommandInterpreter &interpreter) : 1576 CommandObjectParsed (interpreter, 1577 "process status", 1578 "Show the current status and location of executing process.", 1579 "process status", 1580 eFlagRequiresProcess | eFlagTryTargetAPILock) 1581 { 1582 } 1583 1584 ~CommandObjectProcessStatus() 1585 { 1586 } 1587 1588 1589 bool 1590 DoExecute (Args& command, CommandReturnObject &result) 1591 { 1592 Stream &strm = result.GetOutputStream(); 1593 result.SetStatus (eReturnStatusSuccessFinishNoResult); 1594 // No need to check "process" for validity as eFlagRequiresProcess ensures it is valid 1595 Process *process = m_exe_ctx.GetProcessPtr(); 1596 const bool only_threads_with_stop_reason = true; 1597 const uint32_t start_frame = 0; 1598 const uint32_t num_frames = 1; 1599 const uint32_t num_frames_with_source = 1; 1600 process->GetStatus(strm); 1601 process->GetThreadStatus (strm, 1602 only_threads_with_stop_reason, 1603 start_frame, 1604 num_frames, 1605 num_frames_with_source); 1606 return result.Succeeded(); 1607 } 1608 }; 1609 1610 //------------------------------------------------------------------------- 1611 // CommandObjectProcessHandle 1612 //------------------------------------------------------------------------- 1613 #pragma mark CommandObjectProcessHandle 1614 1615 class CommandObjectProcessHandle : public CommandObjectParsed 1616 { 1617 public: 1618 1619 class CommandOptions : public Options 1620 { 1621 public: 1622 1623 CommandOptions (CommandInterpreter &interpreter) : 1624 Options (interpreter) 1625 { 1626 OptionParsingStarting (); 1627 } 1628 1629 ~CommandOptions () 1630 { 1631 } 1632 1633 Error 1634 SetOptionValue (uint32_t option_idx, const char *option_arg) 1635 { 1636 Error error; 1637 const int short_option = m_getopt_table[option_idx].val; 1638 1639 switch (short_option) 1640 { 1641 case 's': 1642 stop = option_arg; 1643 break; 1644 case 'n': 1645 notify = option_arg; 1646 break; 1647 case 'p': 1648 pass = option_arg; 1649 break; 1650 default: 1651 error.SetErrorStringWithFormat("invalid short option character '%c'", short_option); 1652 break; 1653 } 1654 return error; 1655 } 1656 1657 void 1658 OptionParsingStarting () 1659 { 1660 stop.clear(); 1661 notify.clear(); 1662 pass.clear(); 1663 } 1664 1665 const OptionDefinition* 1666 GetDefinitions () 1667 { 1668 return g_option_table; 1669 } 1670 1671 // Options table: Required for subclasses of Options. 1672 1673 static OptionDefinition g_option_table[]; 1674 1675 // Instance variables to hold the values for command options. 1676 1677 std::string stop; 1678 std::string notify; 1679 std::string pass; 1680 }; 1681 1682 1683 CommandObjectProcessHandle (CommandInterpreter &interpreter) : 1684 CommandObjectParsed (interpreter, 1685 "process handle", 1686 "Show or update what the process and debugger should do with various signals received from the OS.", 1687 NULL), 1688 m_options (interpreter) 1689 { 1690 SetHelpLong ("If no signals are specified, update them all. If no update option is specified, list the current values.\n"); 1691 CommandArgumentEntry arg; 1692 CommandArgumentData signal_arg; 1693 1694 signal_arg.arg_type = eArgTypeUnixSignal; 1695 signal_arg.arg_repetition = eArgRepeatStar; 1696 1697 arg.push_back (signal_arg); 1698 1699 m_arguments.push_back (arg); 1700 } 1701 1702 ~CommandObjectProcessHandle () 1703 { 1704 } 1705 1706 Options * 1707 GetOptions () 1708 { 1709 return &m_options; 1710 } 1711 1712 bool 1713 VerifyCommandOptionValue (const std::string &option, int &real_value) 1714 { 1715 bool okay = true; 1716 1717 bool success = false; 1718 bool tmp_value = Args::StringToBoolean (option.c_str(), false, &success); 1719 1720 if (success && tmp_value) 1721 real_value = 1; 1722 else if (success && !tmp_value) 1723 real_value = 0; 1724 else 1725 { 1726 // If the value isn't 'true' or 'false', it had better be 0 or 1. 1727 real_value = Args::StringToUInt32 (option.c_str(), 3); 1728 if (real_value != 0 && real_value != 1) 1729 okay = false; 1730 } 1731 1732 return okay; 1733 } 1734 1735 void 1736 PrintSignalHeader (Stream &str) 1737 { 1738 str.Printf ("NAME PASS STOP NOTIFY\n"); 1739 str.Printf ("========== ===== ===== ======\n"); 1740 } 1741 1742 void 1743 PrintSignal (Stream &str, int32_t signo, const char *sig_name, UnixSignals &signals) 1744 { 1745 bool stop; 1746 bool suppress; 1747 bool notify; 1748 1749 str.Printf ("%-10s ", sig_name); 1750 if (signals.GetSignalInfo (signo, suppress, stop, notify)) 1751 { 1752 bool pass = !suppress; 1753 str.Printf ("%s %s %s", 1754 (pass ? "true " : "false"), 1755 (stop ? "true " : "false"), 1756 (notify ? "true " : "false")); 1757 } 1758 str.Printf ("\n"); 1759 } 1760 1761 void 1762 PrintSignalInformation (Stream &str, Args &signal_args, int num_valid_signals, UnixSignals &signals) 1763 { 1764 PrintSignalHeader (str); 1765 1766 if (num_valid_signals > 0) 1767 { 1768 size_t num_args = signal_args.GetArgumentCount(); 1769 for (size_t i = 0; i < num_args; ++i) 1770 { 1771 int32_t signo = signals.GetSignalNumberFromName (signal_args.GetArgumentAtIndex (i)); 1772 if (signo != LLDB_INVALID_SIGNAL_NUMBER) 1773 PrintSignal (str, signo, signal_args.GetArgumentAtIndex (i), signals); 1774 } 1775 } 1776 else // Print info for ALL signals 1777 { 1778 int32_t signo = signals.GetFirstSignalNumber(); 1779 while (signo != LLDB_INVALID_SIGNAL_NUMBER) 1780 { 1781 PrintSignal (str, signo, signals.GetSignalAsCString (signo), signals); 1782 signo = signals.GetNextSignalNumber (signo); 1783 } 1784 } 1785 } 1786 1787 protected: 1788 bool 1789 DoExecute (Args &signal_args, CommandReturnObject &result) 1790 { 1791 TargetSP target_sp = m_interpreter.GetDebugger().GetSelectedTarget(); 1792 1793 if (!target_sp) 1794 { 1795 result.AppendError ("No current target;" 1796 " cannot handle signals until you have a valid target and process.\n"); 1797 result.SetStatus (eReturnStatusFailed); 1798 return false; 1799 } 1800 1801 ProcessSP process_sp = target_sp->GetProcessSP(); 1802 1803 if (!process_sp) 1804 { 1805 result.AppendError ("No current process; cannot handle signals until you have a valid process.\n"); 1806 result.SetStatus (eReturnStatusFailed); 1807 return false; 1808 } 1809 1810 int stop_action = -1; // -1 means leave the current setting alone 1811 int pass_action = -1; // -1 means leave the current setting alone 1812 int notify_action = -1; // -1 means leave the current setting alone 1813 1814 if (! m_options.stop.empty() 1815 && ! VerifyCommandOptionValue (m_options.stop, stop_action)) 1816 { 1817 result.AppendError ("Invalid argument for command option --stop; must be true or false.\n"); 1818 result.SetStatus (eReturnStatusFailed); 1819 return false; 1820 } 1821 1822 if (! m_options.notify.empty() 1823 && ! VerifyCommandOptionValue (m_options.notify, notify_action)) 1824 { 1825 result.AppendError ("Invalid argument for command option --notify; must be true or false.\n"); 1826 result.SetStatus (eReturnStatusFailed); 1827 return false; 1828 } 1829 1830 if (! m_options.pass.empty() 1831 && ! VerifyCommandOptionValue (m_options.pass, pass_action)) 1832 { 1833 result.AppendError ("Invalid argument for command option --pass; must be true or false.\n"); 1834 result.SetStatus (eReturnStatusFailed); 1835 return false; 1836 } 1837 1838 size_t num_args = signal_args.GetArgumentCount(); 1839 UnixSignals &signals = process_sp->GetUnixSignals(); 1840 int num_signals_set = 0; 1841 1842 if (num_args > 0) 1843 { 1844 for (size_t i = 0; i < num_args; ++i) 1845 { 1846 int32_t signo = signals.GetSignalNumberFromName (signal_args.GetArgumentAtIndex (i)); 1847 if (signo != LLDB_INVALID_SIGNAL_NUMBER) 1848 { 1849 // Casting the actions as bools here should be okay, because VerifyCommandOptionValue guarantees 1850 // the value is either 0 or 1. 1851 if (stop_action != -1) 1852 signals.SetShouldStop (signo, (bool) stop_action); 1853 if (pass_action != -1) 1854 { 1855 bool suppress = ! ((bool) pass_action); 1856 signals.SetShouldSuppress (signo, suppress); 1857 } 1858 if (notify_action != -1) 1859 signals.SetShouldNotify (signo, (bool) notify_action); 1860 ++num_signals_set; 1861 } 1862 else 1863 { 1864 result.AppendErrorWithFormat ("Invalid signal name '%s'\n", signal_args.GetArgumentAtIndex (i)); 1865 } 1866 } 1867 } 1868 else 1869 { 1870 // No signal specified, if any command options were specified, update ALL signals. 1871 if ((notify_action != -1) || (stop_action != -1) || (pass_action != -1)) 1872 { 1873 if (m_interpreter.Confirm ("Do you really want to update all the signals?", false)) 1874 { 1875 int32_t signo = signals.GetFirstSignalNumber(); 1876 while (signo != LLDB_INVALID_SIGNAL_NUMBER) 1877 { 1878 if (notify_action != -1) 1879 signals.SetShouldNotify (signo, (bool) notify_action); 1880 if (stop_action != -1) 1881 signals.SetShouldStop (signo, (bool) stop_action); 1882 if (pass_action != -1) 1883 { 1884 bool suppress = ! ((bool) pass_action); 1885 signals.SetShouldSuppress (signo, suppress); 1886 } 1887 signo = signals.GetNextSignalNumber (signo); 1888 } 1889 } 1890 } 1891 } 1892 1893 PrintSignalInformation (result.GetOutputStream(), signal_args, num_signals_set, signals); 1894 1895 if (num_signals_set > 0) 1896 result.SetStatus (eReturnStatusSuccessFinishNoResult); 1897 else 1898 result.SetStatus (eReturnStatusFailed); 1899 1900 return result.Succeeded(); 1901 } 1902 1903 CommandOptions m_options; 1904 }; 1905 1906 OptionDefinition 1907 CommandObjectProcessHandle::CommandOptions::g_option_table[] = 1908 { 1909 { LLDB_OPT_SET_1, false, "stop", 's', OptionParser::eRequiredArgument, NULL, NULL, 0, eArgTypeBoolean, "Whether or not the process should be stopped if the signal is received." }, 1910 { LLDB_OPT_SET_1, false, "notify", 'n', OptionParser::eRequiredArgument, NULL, NULL, 0, eArgTypeBoolean, "Whether or not the debugger should notify the user if the signal is received." }, 1911 { LLDB_OPT_SET_1, false, "pass", 'p', OptionParser::eRequiredArgument, NULL, NULL, 0, eArgTypeBoolean, "Whether or not the signal should be passed to the process." }, 1912 { 0, false, NULL, 0, 0, NULL, NULL, 0, eArgTypeNone, NULL } 1913 }; 1914 1915 //------------------------------------------------------------------------- 1916 // CommandObjectMultiwordProcess 1917 //------------------------------------------------------------------------- 1918 1919 CommandObjectMultiwordProcess::CommandObjectMultiwordProcess (CommandInterpreter &interpreter) : 1920 CommandObjectMultiword (interpreter, 1921 "process", 1922 "A set of commands for operating on a process.", 1923 "process <subcommand> [<subcommand-options>]") 1924 { 1925 LoadSubCommand ("attach", CommandObjectSP (new CommandObjectProcessAttach (interpreter))); 1926 LoadSubCommand ("launch", CommandObjectSP (new CommandObjectProcessLaunch (interpreter))); 1927 LoadSubCommand ("continue", CommandObjectSP (new CommandObjectProcessContinue (interpreter))); 1928 LoadSubCommand ("connect", CommandObjectSP (new CommandObjectProcessConnect (interpreter))); 1929 LoadSubCommand ("detach", CommandObjectSP (new CommandObjectProcessDetach (interpreter))); 1930 LoadSubCommand ("load", CommandObjectSP (new CommandObjectProcessLoad (interpreter))); 1931 LoadSubCommand ("unload", CommandObjectSP (new CommandObjectProcessUnload (interpreter))); 1932 LoadSubCommand ("signal", CommandObjectSP (new CommandObjectProcessSignal (interpreter))); 1933 LoadSubCommand ("handle", CommandObjectSP (new CommandObjectProcessHandle (interpreter))); 1934 LoadSubCommand ("status", CommandObjectSP (new CommandObjectProcessStatus (interpreter))); 1935 LoadSubCommand ("interrupt", CommandObjectSP (new CommandObjectProcessInterrupt (interpreter))); 1936 LoadSubCommand ("kill", CommandObjectSP (new CommandObjectProcessKill (interpreter))); 1937 LoadSubCommand ("plugin", CommandObjectSP (new CommandObjectProcessPlugin (interpreter))); 1938 LoadSubCommand ("save-core", CommandObjectSP (new CommandObjectProcessSaveCore (interpreter))); 1939 } 1940 1941 CommandObjectMultiwordProcess::~CommandObjectMultiwordProcess () 1942 { 1943 } 1944 1945