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 // Determine whether we will disable ASLR or leave it in the default state (i.e. enabled if the platform supports it). 209 // First check if the process launch options explicitly turn on/off disabling ASLR. If so, use that setting; 210 // otherwise, use the 'settings target.disable-aslr' setting. 211 bool disable_aslr = false; 212 if (m_options.disable_aslr != eLazyBoolCalculate) 213 { 214 // The user specified an explicit setting on the process launch line. Use it. 215 disable_aslr = (m_options.disable_aslr == eLazyBoolYes); 216 } 217 else 218 { 219 // The user did not explicitly specify whether to disable ASLR. Fall back to the target.disable-aslr setting. 220 disable_aslr = target->GetDisableASLR (); 221 } 222 223 if (disable_aslr) 224 m_options.launch_info.GetFlags().Set (eLaunchFlagDisableASLR); 225 else 226 m_options.launch_info.GetFlags().Clear (eLaunchFlagDisableASLR); 227 228 if (target->GetDetachOnError()) 229 m_options.launch_info.GetFlags().Set (eLaunchFlagDetachOnError); 230 231 if (target->GetDisableSTDIO()) 232 m_options.launch_info.GetFlags().Set (eLaunchFlagDisableSTDIO); 233 234 Args environment; 235 target->GetEnvironmentAsArgs (environment); 236 if (environment.GetArgumentCount() > 0) 237 m_options.launch_info.GetEnvironmentEntries ().AppendArguments (environment); 238 239 if (target_settings_argv0) 240 { 241 m_options.launch_info.GetArguments().AppendArgument (target_settings_argv0); 242 m_options.launch_info.SetExecutableFile(exe_module_sp->GetPlatformFileSpec(), false); 243 } 244 else 245 { 246 m_options.launch_info.SetExecutableFile(exe_module_sp->GetPlatformFileSpec(), true); 247 } 248 249 if (launch_args.GetArgumentCount() == 0) 250 { 251 Args target_setting_args; 252 if (target->GetRunArguments(target_setting_args)) 253 m_options.launch_info.GetArguments().AppendArguments (target_setting_args); 254 } 255 else 256 { 257 m_options.launch_info.GetArguments().AppendArguments (launch_args); 258 // Save the arguments for subsequent runs in the current target. 259 target->SetRunArguments (launch_args); 260 } 261 262 Error error = target->Launch(debugger.GetListener(), m_options.launch_info); 263 264 if (error.Success()) 265 { 266 const char *archname = exe_module_sp->GetArchitecture().GetArchitectureName(); 267 ProcessSP process_sp (target->GetProcessSP()); 268 if (process_sp) 269 { 270 result.AppendMessageWithFormat ("Process %" PRIu64 " launched: '%s' (%s)\n", process_sp->GetID(), exe_module_sp->GetFileSpec().GetPath().c_str(), archname); 271 result.SetStatus (eReturnStatusSuccessFinishResult); 272 result.SetDidChangeProcessState (true); 273 } 274 else 275 { 276 result.AppendError("no error returned from Target::Launch, and target has no process"); 277 result.SetStatus (eReturnStatusFailed); 278 } 279 } 280 else 281 { 282 result.AppendError(error.AsCString()); 283 result.SetStatus (eReturnStatusFailed); 284 } 285 return result.Succeeded(); 286 } 287 288 protected: 289 ProcessLaunchCommandOptions m_options; 290 }; 291 292 293 //#define SET1 LLDB_OPT_SET_1 294 //#define SET2 LLDB_OPT_SET_2 295 //#define SET3 LLDB_OPT_SET_3 296 // 297 //OptionDefinition 298 //CommandObjectProcessLaunch::CommandOptions::g_option_table[] = 299 //{ 300 //{ 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."}, 301 //{ SET1 , false, "stdin", 'i', OptionParser::eRequiredArgument, NULL, 0, eArgTypeDirectoryName, "Redirect stdin for the process to <path>."}, 302 //{ SET1 , false, "stdout", 'o', OptionParser::eRequiredArgument, NULL, 0, eArgTypeDirectoryName, "Redirect stdout for the process to <path>."}, 303 //{ SET1 , false, "stderr", 'e', OptionParser::eRequiredArgument, NULL, 0, eArgTypeDirectoryName, "Redirect stderr for the process to <path>."}, 304 //{ SET1 | SET2 | SET3, false, "plugin", 'p', OptionParser::eRequiredArgument, NULL, 0, eArgTypePlugin, "Name of the process plugin you want to use."}, 305 //{ 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."}, 306 //{ SET3, false, "no-stdio", 'n', OptionParser::eNoArgument, NULL, 0, eArgTypeNone, "Do not set up for terminal I/O to go to running process."}, 307 //{ SET1 | SET2 | SET3, false, "working-dir", 'w', OptionParser::eRequiredArgument, NULL, 0, eArgTypeDirectoryName, "Set the current working directory to <path> when running the inferior."}, 308 //{ 0, false, NULL, 0, 0, NULL, 0, eArgTypeNone, NULL } 309 //}; 310 // 311 //#undef SET1 312 //#undef SET2 313 //#undef SET3 314 315 //------------------------------------------------------------------------- 316 // CommandObjectProcessAttach 317 //------------------------------------------------------------------------- 318 #pragma mark CommandObjectProcessAttach 319 class CommandObjectProcessAttach : public CommandObjectProcessLaunchOrAttach 320 { 321 public: 322 323 class CommandOptions : public Options 324 { 325 public: 326 327 CommandOptions (CommandInterpreter &interpreter) : 328 Options(interpreter) 329 { 330 // Keep default values of all options in one place: OptionParsingStarting () 331 OptionParsingStarting (); 332 } 333 334 ~CommandOptions () 335 { 336 } 337 338 Error 339 SetOptionValue (uint32_t option_idx, const char *option_arg) 340 { 341 Error error; 342 const int short_option = m_getopt_table[option_idx].val; 343 bool success = false; 344 switch (short_option) 345 { 346 case 'c': 347 attach_info.SetContinueOnceAttached(true); 348 break; 349 350 case 'p': 351 { 352 lldb::pid_t pid = Args::StringToUInt32 (option_arg, LLDB_INVALID_PROCESS_ID, 0, &success); 353 if (!success || pid == LLDB_INVALID_PROCESS_ID) 354 { 355 error.SetErrorStringWithFormat("invalid process ID '%s'", option_arg); 356 } 357 else 358 { 359 attach_info.SetProcessID (pid); 360 } 361 } 362 break; 363 364 case 'P': 365 attach_info.SetProcessPluginName (option_arg); 366 break; 367 368 case 'n': 369 attach_info.GetExecutableFile().SetFile(option_arg, false); 370 break; 371 372 case 'w': 373 attach_info.SetWaitForLaunch(true); 374 break; 375 376 case 'i': 377 attach_info.SetIgnoreExisting(false); 378 break; 379 380 default: 381 error.SetErrorStringWithFormat("invalid short option character '%c'", short_option); 382 break; 383 } 384 return error; 385 } 386 387 void 388 OptionParsingStarting () 389 { 390 attach_info.Clear(); 391 } 392 393 const OptionDefinition* 394 GetDefinitions () 395 { 396 return g_option_table; 397 } 398 399 virtual bool 400 HandleOptionArgumentCompletion (Args &input, 401 int cursor_index, 402 int char_pos, 403 OptionElementVector &opt_element_vector, 404 int opt_element_index, 405 int match_start_point, 406 int max_return_elements, 407 bool &word_complete, 408 StringList &matches) 409 { 410 int opt_arg_pos = opt_element_vector[opt_element_index].opt_arg_pos; 411 int opt_defs_index = opt_element_vector[opt_element_index].opt_defs_index; 412 413 // We are only completing the name option for now... 414 415 const OptionDefinition *opt_defs = GetDefinitions(); 416 if (opt_defs[opt_defs_index].short_option == 'n') 417 { 418 // Are we in the name? 419 420 // Look to see if there is a -P argument provided, and if so use that plugin, otherwise 421 // use the default plugin. 422 423 const char *partial_name = NULL; 424 partial_name = input.GetArgumentAtIndex(opt_arg_pos); 425 426 PlatformSP platform_sp (m_interpreter.GetPlatform (true)); 427 if (platform_sp) 428 { 429 ProcessInstanceInfoList process_infos; 430 ProcessInstanceInfoMatch match_info; 431 if (partial_name) 432 { 433 match_info.GetProcessInfo().GetExecutableFile().SetFile(partial_name, false); 434 match_info.SetNameMatchType(eNameMatchStartsWith); 435 } 436 platform_sp->FindProcesses (match_info, process_infos); 437 const size_t num_matches = process_infos.GetSize(); 438 if (num_matches > 0) 439 { 440 for (size_t i=0; i<num_matches; ++i) 441 { 442 matches.AppendString (process_infos.GetProcessNameAtIndex(i), 443 process_infos.GetProcessNameLengthAtIndex(i)); 444 } 445 } 446 } 447 } 448 449 return false; 450 } 451 452 // Options table: Required for subclasses of Options. 453 454 static OptionDefinition g_option_table[]; 455 456 // Instance variables to hold the values for command options. 457 458 ProcessAttachInfo attach_info; 459 }; 460 461 CommandObjectProcessAttach (CommandInterpreter &interpreter) : 462 CommandObjectProcessLaunchOrAttach (interpreter, 463 "process attach", 464 "Attach to a process.", 465 "process attach <cmd-options>", 466 0, 467 "attach"), 468 m_options (interpreter) 469 { 470 } 471 472 ~CommandObjectProcessAttach () 473 { 474 } 475 476 Options * 477 GetOptions () 478 { 479 return &m_options; 480 } 481 482 protected: 483 bool 484 DoExecute (Args& command, 485 CommandReturnObject &result) 486 { 487 Target *target = m_interpreter.GetDebugger().GetSelectedTarget().get(); 488 // N.B. The attach should be synchronous. It doesn't help much to get the prompt back between initiating the attach 489 // and the target actually stopping. So even if the interpreter is set to be asynchronous, we wait for the stop 490 // ourselves here. 491 492 StateType state = eStateInvalid; 493 Process *process = m_exe_ctx.GetProcessPtr(); 494 495 if (!StopProcessIfNecessary (process, state, result)) 496 return false; 497 498 if (target == NULL) 499 { 500 // If there isn't a current target create one. 501 TargetSP new_target_sp; 502 Error error; 503 504 error = m_interpreter.GetDebugger().GetTargetList().CreateTarget (m_interpreter.GetDebugger(), 505 NULL, 506 NULL, 507 false, 508 NULL, // No platform options 509 new_target_sp); 510 target = new_target_sp.get(); 511 if (target == NULL || error.Fail()) 512 { 513 result.AppendError(error.AsCString("Error creating target")); 514 return false; 515 } 516 m_interpreter.GetDebugger().GetTargetList().SetSelectedTarget(target); 517 } 518 519 // Record the old executable module, we want to issue a warning if the process of attaching changed the 520 // current executable (like somebody said "file foo" then attached to a PID whose executable was bar.) 521 522 ModuleSP old_exec_module_sp = target->GetExecutableModule(); 523 ArchSpec old_arch_spec = target->GetArchitecture(); 524 525 if (command.GetArgumentCount()) 526 { 527 result.AppendErrorWithFormat("Invalid arguments for '%s'.\nUsage: %s\n", m_cmd_name.c_str(), m_cmd_syntax.c_str()); 528 result.SetStatus (eReturnStatusFailed); 529 } 530 else 531 { 532 if (state != eStateConnected) 533 { 534 const char *plugin_name = m_options.attach_info.GetProcessPluginName(); 535 process = target->CreateProcess (m_interpreter.GetDebugger().GetListener(), plugin_name, NULL).get(); 536 } 537 538 if (process) 539 { 540 Error error; 541 // If no process info was specified, then use the target executable 542 // name as the process to attach to by default 543 if (!m_options.attach_info.ProcessInfoSpecified ()) 544 { 545 if (old_exec_module_sp) 546 m_options.attach_info.GetExecutableFile().GetFilename() = old_exec_module_sp->GetPlatformFileSpec().GetFilename(); 547 548 if (!m_options.attach_info.ProcessInfoSpecified ()) 549 { 550 error.SetErrorString ("no process specified, create a target with a file, or specify the --pid or --name command option"); 551 } 552 } 553 554 if (error.Success()) 555 { 556 // Update the execution context so the current target and process are now selected 557 // in case we interrupt 558 m_interpreter.UpdateExecutionContext(NULL); 559 ListenerSP listener_sp (new Listener("lldb.CommandObjectProcessAttach.DoExecute.attach.hijack")); 560 m_options.attach_info.SetHijackListener(listener_sp); 561 process->HijackProcessEvents(listener_sp.get()); 562 error = process->Attach (m_options.attach_info); 563 564 if (error.Success()) 565 { 566 result.SetStatus (eReturnStatusSuccessContinuingNoResult); 567 StateType state = process->WaitForProcessToStop (NULL, NULL, false, listener_sp.get()); 568 569 process->RestoreProcessEvents(); 570 571 result.SetDidChangeProcessState (true); 572 573 if (state == eStateStopped) 574 { 575 result.AppendMessageWithFormat ("Process %" PRIu64 " %s\n", process->GetID(), StateAsCString (state)); 576 result.SetStatus (eReturnStatusSuccessFinishNoResult); 577 } 578 else 579 { 580 const char *exit_desc = process->GetExitDescription(); 581 if (exit_desc) 582 result.AppendErrorWithFormat ("attach failed: %s", exit_desc); 583 else 584 result.AppendError ("attach failed: process did not stop (no such process or permission problem?)"); 585 process->Destroy(); 586 result.SetStatus (eReturnStatusFailed); 587 } 588 } 589 else 590 { 591 result.AppendErrorWithFormat ("attach failed: %s\n", error.AsCString()); 592 result.SetStatus (eReturnStatusFailed); 593 } 594 } 595 } 596 } 597 598 if (result.Succeeded()) 599 { 600 // Okay, we're done. Last step is to warn if the executable module has changed: 601 char new_path[PATH_MAX]; 602 ModuleSP new_exec_module_sp (target->GetExecutableModule()); 603 if (!old_exec_module_sp) 604 { 605 // We might not have a module if we attached to a raw pid... 606 if (new_exec_module_sp) 607 { 608 new_exec_module_sp->GetFileSpec().GetPath(new_path, PATH_MAX); 609 result.AppendMessageWithFormat("Executable module set to \"%s\".\n", new_path); 610 } 611 } 612 else if (old_exec_module_sp->GetFileSpec() != new_exec_module_sp->GetFileSpec()) 613 { 614 char old_path[PATH_MAX]; 615 616 old_exec_module_sp->GetFileSpec().GetPath (old_path, PATH_MAX); 617 new_exec_module_sp->GetFileSpec().GetPath (new_path, PATH_MAX); 618 619 result.AppendWarningWithFormat("Executable module changed from \"%s\" to \"%s\".\n", 620 old_path, new_path); 621 } 622 623 if (!old_arch_spec.IsValid()) 624 { 625 result.AppendMessageWithFormat ("Architecture set to: %s.\n", target->GetArchitecture().GetTriple().getTriple().c_str()); 626 } 627 else if (!old_arch_spec.IsExactMatch(target->GetArchitecture())) 628 { 629 result.AppendWarningWithFormat("Architecture changed from %s to %s.\n", 630 old_arch_spec.GetTriple().getTriple().c_str(), 631 target->GetArchitecture().GetTriple().getTriple().c_str()); 632 } 633 634 // This supports the use-case scenario of immediately continuing the process once attached. 635 if (m_options.attach_info.GetContinueOnceAttached()) 636 m_interpreter.HandleCommand("process continue", eLazyBoolNo, result); 637 } 638 return result.Succeeded(); 639 } 640 641 CommandOptions m_options; 642 }; 643 644 645 OptionDefinition 646 CommandObjectProcessAttach::CommandOptions::g_option_table[] = 647 { 648 { LLDB_OPT_SET_ALL, false, "continue",'c', OptionParser::eNoArgument, NULL, NULL, 0, eArgTypeNone, "Immediately continue the process once attached."}, 649 { LLDB_OPT_SET_ALL, false, "plugin", 'P', OptionParser::eRequiredArgument, NULL, NULL, 0, eArgTypePlugin, "Name of the process plugin you want to use."}, 650 { LLDB_OPT_SET_1, false, "pid", 'p', OptionParser::eRequiredArgument, NULL, NULL, 0, eArgTypePid, "The process ID of an existing process to attach to."}, 651 { LLDB_OPT_SET_2, false, "name", 'n', OptionParser::eRequiredArgument, NULL, NULL, 0, eArgTypeProcessName, "The name of the process to attach to."}, 652 { LLDB_OPT_SET_2, false, "include-existing", 'i', OptionParser::eNoArgument, NULL, NULL, 0, eArgTypeNone, "Include existing processes when doing attach -w."}, 653 { LLDB_OPT_SET_2, false, "waitfor", 'w', OptionParser::eNoArgument, NULL, NULL, 0, eArgTypeNone, "Wait for the process with <process-name> to launch."}, 654 { 0, false, NULL, 0, 0, NULL, NULL, 0, eArgTypeNone, NULL } 655 }; 656 657 //------------------------------------------------------------------------- 658 // CommandObjectProcessContinue 659 //------------------------------------------------------------------------- 660 #pragma mark CommandObjectProcessContinue 661 662 class CommandObjectProcessContinue : public CommandObjectParsed 663 { 664 public: 665 666 CommandObjectProcessContinue (CommandInterpreter &interpreter) : 667 CommandObjectParsed (interpreter, 668 "process continue", 669 "Continue execution of all threads in the current process.", 670 "process continue", 671 eFlagRequiresProcess | 672 eFlagTryTargetAPILock | 673 eFlagProcessMustBeLaunched | 674 eFlagProcessMustBePaused ), 675 m_options(interpreter) 676 { 677 } 678 679 680 ~CommandObjectProcessContinue () 681 { 682 } 683 684 protected: 685 686 class CommandOptions : public Options 687 { 688 public: 689 690 CommandOptions (CommandInterpreter &interpreter) : 691 Options(interpreter) 692 { 693 // Keep default values of all options in one place: OptionParsingStarting () 694 OptionParsingStarting (); 695 } 696 697 ~CommandOptions () 698 { 699 } 700 701 Error 702 SetOptionValue (uint32_t option_idx, const char *option_arg) 703 { 704 Error error; 705 const int short_option = m_getopt_table[option_idx].val; 706 bool success = false; 707 switch (short_option) 708 { 709 case 'i': 710 m_ignore = Args::StringToUInt32 (option_arg, 0, 0, &success); 711 if (!success) 712 error.SetErrorStringWithFormat ("invalid value for ignore option: \"%s\", should be a number.", option_arg); 713 break; 714 715 default: 716 error.SetErrorStringWithFormat("invalid short option character '%c'", short_option); 717 break; 718 } 719 return error; 720 } 721 722 void 723 OptionParsingStarting () 724 { 725 m_ignore = 0; 726 } 727 728 const OptionDefinition* 729 GetDefinitions () 730 { 731 return g_option_table; 732 } 733 734 // Options table: Required for subclasses of Options. 735 736 static OptionDefinition g_option_table[]; 737 738 uint32_t m_ignore; 739 }; 740 741 bool 742 DoExecute (Args& command, CommandReturnObject &result) 743 { 744 Process *process = m_exe_ctx.GetProcessPtr(); 745 bool synchronous_execution = m_interpreter.GetSynchronous (); 746 StateType state = process->GetState(); 747 if (state == eStateStopped) 748 { 749 if (command.GetArgumentCount() != 0) 750 { 751 result.AppendErrorWithFormat ("The '%s' command does not take any arguments.\n", m_cmd_name.c_str()); 752 result.SetStatus (eReturnStatusFailed); 753 return false; 754 } 755 756 if (m_options.m_ignore > 0) 757 { 758 ThreadSP sel_thread_sp(process->GetThreadList().GetSelectedThread()); 759 if (sel_thread_sp) 760 { 761 StopInfoSP stop_info_sp = sel_thread_sp->GetStopInfo(); 762 if (stop_info_sp && stop_info_sp->GetStopReason() == eStopReasonBreakpoint) 763 { 764 lldb::break_id_t bp_site_id = (lldb::break_id_t)stop_info_sp->GetValue(); 765 BreakpointSiteSP bp_site_sp(process->GetBreakpointSiteList().FindByID(bp_site_id)); 766 if (bp_site_sp) 767 { 768 const size_t num_owners = bp_site_sp->GetNumberOfOwners(); 769 for (size_t i = 0; i < num_owners; i++) 770 { 771 Breakpoint &bp_ref = bp_site_sp->GetOwnerAtIndex(i)->GetBreakpoint(); 772 if (!bp_ref.IsInternal()) 773 { 774 bp_ref.SetIgnoreCount(m_options.m_ignore); 775 } 776 } 777 } 778 } 779 } 780 } 781 782 { // Scope for thread list mutex: 783 Mutex::Locker locker (process->GetThreadList().GetMutex()); 784 const uint32_t num_threads = process->GetThreadList().GetSize(); 785 786 // Set the actions that the threads should each take when resuming 787 for (uint32_t idx=0; idx<num_threads; ++idx) 788 { 789 const bool override_suspend = false; 790 process->GetThreadList().GetThreadAtIndex(idx)->SetResumeState (eStateRunning, override_suspend); 791 } 792 } 793 794 Error error(process->Resume()); 795 796 if (error.Success()) 797 { 798 // There is a race condition where this thread will return up the call stack to the main command 799 // handler and show an (lldb) prompt before HandlePrivateEvent (from PrivateStateThread) has 800 // a chance to call PushProcessIOHandler(). 801 process->SyncIOHandler(2000); 802 803 result.AppendMessageWithFormat ("Process %" PRIu64 " resuming\n", process->GetID()); 804 if (synchronous_execution) 805 { 806 state = process->WaitForProcessToStop (NULL); 807 808 result.SetDidChangeProcessState (true); 809 result.AppendMessageWithFormat ("Process %" PRIu64 " %s\n", process->GetID(), StateAsCString (state)); 810 result.SetStatus (eReturnStatusSuccessFinishNoResult); 811 } 812 else 813 { 814 result.SetStatus (eReturnStatusSuccessContinuingNoResult); 815 } 816 } 817 else 818 { 819 result.AppendErrorWithFormat("Failed to resume process: %s.\n", error.AsCString()); 820 result.SetStatus (eReturnStatusFailed); 821 } 822 } 823 else 824 { 825 result.AppendErrorWithFormat ("Process cannot be continued from its current state (%s).\n", 826 StateAsCString(state)); 827 result.SetStatus (eReturnStatusFailed); 828 } 829 return result.Succeeded(); 830 } 831 832 Options * 833 GetOptions () 834 { 835 return &m_options; 836 } 837 838 CommandOptions m_options; 839 840 }; 841 842 OptionDefinition 843 CommandObjectProcessContinue::CommandOptions::g_option_table[] = 844 { 845 { LLDB_OPT_SET_ALL, false, "ignore-count",'i', OptionParser::eRequiredArgument, NULL, NULL, 0, eArgTypeUnsignedInteger, 846 "Ignore <N> crossings of the breakpoint (if it exists) for the currently selected thread."}, 847 { 0, false, NULL, 0, 0, NULL, NULL, 0, eArgTypeNone, NULL } 848 }; 849 850 //------------------------------------------------------------------------- 851 // CommandObjectProcessDetach 852 //------------------------------------------------------------------------- 853 #pragma mark CommandObjectProcessDetach 854 855 class CommandObjectProcessDetach : public CommandObjectParsed 856 { 857 public: 858 class CommandOptions : public Options 859 { 860 public: 861 862 CommandOptions (CommandInterpreter &interpreter) : 863 Options (interpreter) 864 { 865 OptionParsingStarting (); 866 } 867 868 ~CommandOptions () 869 { 870 } 871 872 Error 873 SetOptionValue (uint32_t option_idx, const char *option_arg) 874 { 875 Error error; 876 const int short_option = m_getopt_table[option_idx].val; 877 878 switch (short_option) 879 { 880 case 's': 881 bool tmp_result; 882 bool success; 883 tmp_result = Args::StringToBoolean(option_arg, false, &success); 884 if (!success) 885 error.SetErrorStringWithFormat("invalid boolean option: \"%s\"", option_arg); 886 else 887 { 888 if (tmp_result) 889 m_keep_stopped = eLazyBoolYes; 890 else 891 m_keep_stopped = eLazyBoolNo; 892 } 893 break; 894 default: 895 error.SetErrorStringWithFormat("invalid short option character '%c'", short_option); 896 break; 897 } 898 return error; 899 } 900 901 void 902 OptionParsingStarting () 903 { 904 m_keep_stopped = eLazyBoolCalculate; 905 } 906 907 const OptionDefinition* 908 GetDefinitions () 909 { 910 return g_option_table; 911 } 912 913 // Options table: Required for subclasses of Options. 914 915 static OptionDefinition g_option_table[]; 916 917 // Instance variables to hold the values for command options. 918 LazyBool m_keep_stopped; 919 }; 920 921 CommandObjectProcessDetach (CommandInterpreter &interpreter) : 922 CommandObjectParsed (interpreter, 923 "process detach", 924 "Detach from the current process being debugged.", 925 "process detach", 926 eFlagRequiresProcess | 927 eFlagTryTargetAPILock | 928 eFlagProcessMustBeLaunched), 929 m_options(interpreter) 930 { 931 } 932 933 ~CommandObjectProcessDetach () 934 { 935 } 936 937 Options * 938 GetOptions () 939 { 940 return &m_options; 941 } 942 943 944 protected: 945 bool 946 DoExecute (Args& command, CommandReturnObject &result) 947 { 948 Process *process = m_exe_ctx.GetProcessPtr(); 949 // FIXME: This will be a Command Option: 950 bool keep_stopped; 951 if (m_options.m_keep_stopped == eLazyBoolCalculate) 952 { 953 // Check the process default: 954 if (process->GetDetachKeepsStopped()) 955 keep_stopped = true; 956 else 957 keep_stopped = false; 958 } 959 else if (m_options.m_keep_stopped == eLazyBoolYes) 960 keep_stopped = true; 961 else 962 keep_stopped = false; 963 964 Error error (process->Detach(keep_stopped)); 965 if (error.Success()) 966 { 967 result.SetStatus (eReturnStatusSuccessFinishResult); 968 } 969 else 970 { 971 result.AppendErrorWithFormat ("Detach failed: %s\n", error.AsCString()); 972 result.SetStatus (eReturnStatusFailed); 973 return false; 974 } 975 return result.Succeeded(); 976 } 977 978 CommandOptions m_options; 979 }; 980 981 OptionDefinition 982 CommandObjectProcessDetach::CommandOptions::g_option_table[] = 983 { 984 { 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)." }, 985 { 0, false, NULL, 0, 0, NULL, NULL, 0, eArgTypeNone, NULL } 986 }; 987 988 //------------------------------------------------------------------------- 989 // CommandObjectProcessConnect 990 //------------------------------------------------------------------------- 991 #pragma mark CommandObjectProcessConnect 992 993 class CommandObjectProcessConnect : public CommandObjectParsed 994 { 995 public: 996 997 class CommandOptions : public Options 998 { 999 public: 1000 1001 CommandOptions (CommandInterpreter &interpreter) : 1002 Options(interpreter) 1003 { 1004 // Keep default values of all options in one place: OptionParsingStarting () 1005 OptionParsingStarting (); 1006 } 1007 1008 ~CommandOptions () 1009 { 1010 } 1011 1012 Error 1013 SetOptionValue (uint32_t option_idx, const char *option_arg) 1014 { 1015 Error error; 1016 const int short_option = m_getopt_table[option_idx].val; 1017 1018 switch (short_option) 1019 { 1020 case 'p': 1021 plugin_name.assign (option_arg); 1022 break; 1023 1024 default: 1025 error.SetErrorStringWithFormat("invalid short option character '%c'", short_option); 1026 break; 1027 } 1028 return error; 1029 } 1030 1031 void 1032 OptionParsingStarting () 1033 { 1034 plugin_name.clear(); 1035 } 1036 1037 const OptionDefinition* 1038 GetDefinitions () 1039 { 1040 return g_option_table; 1041 } 1042 1043 // Options table: Required for subclasses of Options. 1044 1045 static OptionDefinition g_option_table[]; 1046 1047 // Instance variables to hold the values for command options. 1048 1049 std::string plugin_name; 1050 }; 1051 1052 CommandObjectProcessConnect (CommandInterpreter &interpreter) : 1053 CommandObjectParsed (interpreter, 1054 "process connect", 1055 "Connect to a remote debug service.", 1056 "process connect <remote-url>", 1057 0), 1058 m_options (interpreter) 1059 { 1060 } 1061 1062 ~CommandObjectProcessConnect () 1063 { 1064 } 1065 1066 1067 Options * 1068 GetOptions () 1069 { 1070 return &m_options; 1071 } 1072 1073 protected: 1074 bool 1075 DoExecute (Args& command, 1076 CommandReturnObject &result) 1077 { 1078 1079 TargetSP target_sp (m_interpreter.GetDebugger().GetSelectedTarget()); 1080 Error error; 1081 Process *process = m_exe_ctx.GetProcessPtr(); 1082 if (process) 1083 { 1084 if (process->IsAlive()) 1085 { 1086 result.AppendErrorWithFormat ("Process %" PRIu64 " is currently being debugged, kill the process before connecting.\n", 1087 process->GetID()); 1088 result.SetStatus (eReturnStatusFailed); 1089 return false; 1090 } 1091 } 1092 1093 if (!target_sp) 1094 { 1095 // If there isn't a current target create one. 1096 1097 error = m_interpreter.GetDebugger().GetTargetList().CreateTarget (m_interpreter.GetDebugger(), 1098 NULL, 1099 NULL, 1100 false, 1101 NULL, // No platform options 1102 target_sp); 1103 if (!target_sp || error.Fail()) 1104 { 1105 result.AppendError(error.AsCString("Error creating target")); 1106 result.SetStatus (eReturnStatusFailed); 1107 return false; 1108 } 1109 m_interpreter.GetDebugger().GetTargetList().SetSelectedTarget(target_sp.get()); 1110 } 1111 1112 if (command.GetArgumentCount() == 1) 1113 { 1114 const char *plugin_name = NULL; 1115 if (!m_options.plugin_name.empty()) 1116 plugin_name = m_options.plugin_name.c_str(); 1117 1118 const char *remote_url = command.GetArgumentAtIndex(0); 1119 process = target_sp->CreateProcess (m_interpreter.GetDebugger().GetListener(), plugin_name, NULL).get(); 1120 1121 if (process) 1122 { 1123 error = process->ConnectRemote (process->GetTarget().GetDebugger().GetOutputFile().get(), remote_url); 1124 1125 if (error.Fail()) 1126 { 1127 result.AppendError(error.AsCString("Remote connect failed")); 1128 result.SetStatus (eReturnStatusFailed); 1129 target_sp->DeleteCurrentProcess(); 1130 return false; 1131 } 1132 } 1133 else 1134 { 1135 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", 1136 remote_url); 1137 result.SetStatus (eReturnStatusFailed); 1138 } 1139 } 1140 else 1141 { 1142 result.AppendErrorWithFormat ("'%s' takes exactly one argument:\nUsage: %s\n", 1143 m_cmd_name.c_str(), 1144 m_cmd_syntax.c_str()); 1145 result.SetStatus (eReturnStatusFailed); 1146 } 1147 return result.Succeeded(); 1148 } 1149 1150 CommandOptions m_options; 1151 }; 1152 1153 OptionDefinition 1154 CommandObjectProcessConnect::CommandOptions::g_option_table[] = 1155 { 1156 { LLDB_OPT_SET_ALL, false, "plugin", 'p', OptionParser::eRequiredArgument, NULL, NULL, 0, eArgTypePlugin, "Name of the process plugin you want to use."}, 1157 { 0, false, NULL, 0 , 0, NULL, NULL, 0, eArgTypeNone, NULL } 1158 }; 1159 1160 //------------------------------------------------------------------------- 1161 // CommandObjectProcessPlugin 1162 //------------------------------------------------------------------------- 1163 #pragma mark CommandObjectProcessPlugin 1164 1165 class CommandObjectProcessPlugin : public CommandObjectProxy 1166 { 1167 public: 1168 1169 CommandObjectProcessPlugin (CommandInterpreter &interpreter) : 1170 CommandObjectProxy (interpreter, 1171 "process plugin", 1172 "Send a custom command to the current process plug-in.", 1173 "process plugin <args>", 1174 0) 1175 { 1176 } 1177 1178 ~CommandObjectProcessPlugin () 1179 { 1180 } 1181 1182 virtual CommandObject * 1183 GetProxyCommandObject() 1184 { 1185 Process *process = m_interpreter.GetExecutionContext().GetProcessPtr(); 1186 if (process) 1187 return process->GetPluginCommandObject(); 1188 return NULL; 1189 } 1190 }; 1191 1192 1193 //------------------------------------------------------------------------- 1194 // CommandObjectProcessLoad 1195 //------------------------------------------------------------------------- 1196 #pragma mark CommandObjectProcessLoad 1197 1198 class CommandObjectProcessLoad : public CommandObjectParsed 1199 { 1200 public: 1201 1202 CommandObjectProcessLoad (CommandInterpreter &interpreter) : 1203 CommandObjectParsed (interpreter, 1204 "process load", 1205 "Load a shared library into the current process.", 1206 "process load <filename> [<filename> ...]", 1207 eFlagRequiresProcess | 1208 eFlagTryTargetAPILock | 1209 eFlagProcessMustBeLaunched | 1210 eFlagProcessMustBePaused ) 1211 { 1212 } 1213 1214 ~CommandObjectProcessLoad () 1215 { 1216 } 1217 1218 protected: 1219 bool 1220 DoExecute (Args& command, 1221 CommandReturnObject &result) 1222 { 1223 Process *process = m_exe_ctx.GetProcessPtr(); 1224 1225 const size_t argc = command.GetArgumentCount(); 1226 1227 for (uint32_t i=0; i<argc; ++i) 1228 { 1229 Error error; 1230 const char *image_path = command.GetArgumentAtIndex(i); 1231 FileSpec image_spec (image_path, false); 1232 process->GetTarget().GetPlatform()->ResolveRemotePath(image_spec, image_spec); 1233 uint32_t image_token = process->LoadImage(image_spec, error); 1234 if (image_token != LLDB_INVALID_IMAGE_TOKEN) 1235 { 1236 result.AppendMessageWithFormat ("Loading \"%s\"...ok\nImage %u loaded.\n", image_path, image_token); 1237 result.SetStatus (eReturnStatusSuccessFinishResult); 1238 } 1239 else 1240 { 1241 result.AppendErrorWithFormat ("failed to load '%s': %s", image_path, error.AsCString()); 1242 result.SetStatus (eReturnStatusFailed); 1243 } 1244 } 1245 return result.Succeeded(); 1246 } 1247 }; 1248 1249 1250 //------------------------------------------------------------------------- 1251 // CommandObjectProcessUnload 1252 //------------------------------------------------------------------------- 1253 #pragma mark CommandObjectProcessUnload 1254 1255 class CommandObjectProcessUnload : public CommandObjectParsed 1256 { 1257 public: 1258 1259 CommandObjectProcessUnload (CommandInterpreter &interpreter) : 1260 CommandObjectParsed (interpreter, 1261 "process unload", 1262 "Unload a shared library from the current process using the index returned by a previous call to \"process load\".", 1263 "process unload <index>", 1264 eFlagRequiresProcess | 1265 eFlagTryTargetAPILock | 1266 eFlagProcessMustBeLaunched | 1267 eFlagProcessMustBePaused ) 1268 { 1269 } 1270 1271 ~CommandObjectProcessUnload () 1272 { 1273 } 1274 1275 protected: 1276 bool 1277 DoExecute (Args& command, 1278 CommandReturnObject &result) 1279 { 1280 Process *process = m_exe_ctx.GetProcessPtr(); 1281 1282 const size_t argc = command.GetArgumentCount(); 1283 1284 for (uint32_t i=0; i<argc; ++i) 1285 { 1286 const char *image_token_cstr = command.GetArgumentAtIndex(i); 1287 uint32_t image_token = Args::StringToUInt32(image_token_cstr, LLDB_INVALID_IMAGE_TOKEN, 0); 1288 if (image_token == LLDB_INVALID_IMAGE_TOKEN) 1289 { 1290 result.AppendErrorWithFormat ("invalid image index argument '%s'", image_token_cstr); 1291 result.SetStatus (eReturnStatusFailed); 1292 break; 1293 } 1294 else 1295 { 1296 Error error (process->UnloadImage(image_token)); 1297 if (error.Success()) 1298 { 1299 result.AppendMessageWithFormat ("Unloading shared library with index %u...ok\n", image_token); 1300 result.SetStatus (eReturnStatusSuccessFinishResult); 1301 } 1302 else 1303 { 1304 result.AppendErrorWithFormat ("failed to unload image: %s", error.AsCString()); 1305 result.SetStatus (eReturnStatusFailed); 1306 break; 1307 } 1308 } 1309 } 1310 return result.Succeeded(); 1311 } 1312 }; 1313 1314 //------------------------------------------------------------------------- 1315 // CommandObjectProcessSignal 1316 //------------------------------------------------------------------------- 1317 #pragma mark CommandObjectProcessSignal 1318 1319 class CommandObjectProcessSignal : public CommandObjectParsed 1320 { 1321 public: 1322 1323 CommandObjectProcessSignal (CommandInterpreter &interpreter) : 1324 CommandObjectParsed (interpreter, 1325 "process signal", 1326 "Send a UNIX signal to the current process being debugged.", 1327 NULL, 1328 eFlagRequiresProcess | eFlagTryTargetAPILock) 1329 { 1330 CommandArgumentEntry arg; 1331 CommandArgumentData signal_arg; 1332 1333 // Define the first (and only) variant of this arg. 1334 signal_arg.arg_type = eArgTypeUnixSignal; 1335 signal_arg.arg_repetition = eArgRepeatPlain; 1336 1337 // There is only one variant this argument could be; put it into the argument entry. 1338 arg.push_back (signal_arg); 1339 1340 // Push the data for the first argument into the m_arguments vector. 1341 m_arguments.push_back (arg); 1342 } 1343 1344 ~CommandObjectProcessSignal () 1345 { 1346 } 1347 1348 protected: 1349 bool 1350 DoExecute (Args& command, 1351 CommandReturnObject &result) 1352 { 1353 Process *process = m_exe_ctx.GetProcessPtr(); 1354 1355 if (command.GetArgumentCount() == 1) 1356 { 1357 int signo = LLDB_INVALID_SIGNAL_NUMBER; 1358 1359 const char *signal_name = command.GetArgumentAtIndex(0); 1360 if (::isxdigit (signal_name[0])) 1361 signo = Args::StringToSInt32(signal_name, LLDB_INVALID_SIGNAL_NUMBER, 0); 1362 else 1363 signo = process->GetUnixSignals().GetSignalNumberFromName (signal_name); 1364 1365 if (signo == LLDB_INVALID_SIGNAL_NUMBER) 1366 { 1367 result.AppendErrorWithFormat ("Invalid signal argument '%s'.\n", command.GetArgumentAtIndex(0)); 1368 result.SetStatus (eReturnStatusFailed); 1369 } 1370 else 1371 { 1372 Error error (process->Signal (signo)); 1373 if (error.Success()) 1374 { 1375 result.SetStatus (eReturnStatusSuccessFinishResult); 1376 } 1377 else 1378 { 1379 result.AppendErrorWithFormat ("Failed to send signal %i: %s\n", signo, error.AsCString()); 1380 result.SetStatus (eReturnStatusFailed); 1381 } 1382 } 1383 } 1384 else 1385 { 1386 result.AppendErrorWithFormat("'%s' takes exactly one signal number argument:\nUsage: %s\n", m_cmd_name.c_str(), 1387 m_cmd_syntax.c_str()); 1388 result.SetStatus (eReturnStatusFailed); 1389 } 1390 return result.Succeeded(); 1391 } 1392 }; 1393 1394 1395 //------------------------------------------------------------------------- 1396 // CommandObjectProcessInterrupt 1397 //------------------------------------------------------------------------- 1398 #pragma mark CommandObjectProcessInterrupt 1399 1400 class CommandObjectProcessInterrupt : public CommandObjectParsed 1401 { 1402 public: 1403 1404 1405 CommandObjectProcessInterrupt (CommandInterpreter &interpreter) : 1406 CommandObjectParsed (interpreter, 1407 "process interrupt", 1408 "Interrupt the current process being debugged.", 1409 "process interrupt", 1410 eFlagRequiresProcess | 1411 eFlagTryTargetAPILock | 1412 eFlagProcessMustBeLaunched) 1413 { 1414 } 1415 1416 ~CommandObjectProcessInterrupt () 1417 { 1418 } 1419 1420 protected: 1421 bool 1422 DoExecute (Args& command, 1423 CommandReturnObject &result) 1424 { 1425 Process *process = m_exe_ctx.GetProcessPtr(); 1426 if (process == NULL) 1427 { 1428 result.AppendError ("no process to halt"); 1429 result.SetStatus (eReturnStatusFailed); 1430 return false; 1431 } 1432 1433 if (command.GetArgumentCount() == 0) 1434 { 1435 bool clear_thread_plans = true; 1436 Error error(process->Halt (clear_thread_plans)); 1437 if (error.Success()) 1438 { 1439 result.SetStatus (eReturnStatusSuccessFinishResult); 1440 } 1441 else 1442 { 1443 result.AppendErrorWithFormat ("Failed to halt process: %s\n", error.AsCString()); 1444 result.SetStatus (eReturnStatusFailed); 1445 } 1446 } 1447 else 1448 { 1449 result.AppendErrorWithFormat("'%s' takes no arguments:\nUsage: %s\n", 1450 m_cmd_name.c_str(), 1451 m_cmd_syntax.c_str()); 1452 result.SetStatus (eReturnStatusFailed); 1453 } 1454 return result.Succeeded(); 1455 } 1456 }; 1457 1458 //------------------------------------------------------------------------- 1459 // CommandObjectProcessKill 1460 //------------------------------------------------------------------------- 1461 #pragma mark CommandObjectProcessKill 1462 1463 class CommandObjectProcessKill : public CommandObjectParsed 1464 { 1465 public: 1466 1467 CommandObjectProcessKill (CommandInterpreter &interpreter) : 1468 CommandObjectParsed (interpreter, 1469 "process kill", 1470 "Terminate the current process being debugged.", 1471 "process kill", 1472 eFlagRequiresProcess | 1473 eFlagTryTargetAPILock | 1474 eFlagProcessMustBeLaunched) 1475 { 1476 } 1477 1478 ~CommandObjectProcessKill () 1479 { 1480 } 1481 1482 protected: 1483 bool 1484 DoExecute (Args& command, 1485 CommandReturnObject &result) 1486 { 1487 Process *process = m_exe_ctx.GetProcessPtr(); 1488 if (process == NULL) 1489 { 1490 result.AppendError ("no process to kill"); 1491 result.SetStatus (eReturnStatusFailed); 1492 return false; 1493 } 1494 1495 if (command.GetArgumentCount() == 0) 1496 { 1497 Error error (process->Destroy()); 1498 if (error.Success()) 1499 { 1500 result.SetStatus (eReturnStatusSuccessFinishResult); 1501 } 1502 else 1503 { 1504 result.AppendErrorWithFormat ("Failed to kill process: %s\n", error.AsCString()); 1505 result.SetStatus (eReturnStatusFailed); 1506 } 1507 } 1508 else 1509 { 1510 result.AppendErrorWithFormat("'%s' takes no arguments:\nUsage: %s\n", 1511 m_cmd_name.c_str(), 1512 m_cmd_syntax.c_str()); 1513 result.SetStatus (eReturnStatusFailed); 1514 } 1515 return result.Succeeded(); 1516 } 1517 }; 1518 1519 //------------------------------------------------------------------------- 1520 // CommandObjectProcessSaveCore 1521 //------------------------------------------------------------------------- 1522 #pragma mark CommandObjectProcessSaveCore 1523 1524 class CommandObjectProcessSaveCore : public CommandObjectParsed 1525 { 1526 public: 1527 1528 CommandObjectProcessSaveCore (CommandInterpreter &interpreter) : 1529 CommandObjectParsed (interpreter, 1530 "process save-core", 1531 "Save the current process as a core file using an appropriate file type.", 1532 "process save-core FILE", 1533 eFlagRequiresProcess | 1534 eFlagTryTargetAPILock | 1535 eFlagProcessMustBeLaunched) 1536 { 1537 } 1538 1539 ~CommandObjectProcessSaveCore () 1540 { 1541 } 1542 1543 protected: 1544 bool 1545 DoExecute (Args& command, 1546 CommandReturnObject &result) 1547 { 1548 ProcessSP process_sp = m_exe_ctx.GetProcessSP(); 1549 if (process_sp) 1550 { 1551 if (command.GetArgumentCount() == 1) 1552 { 1553 FileSpec output_file(command.GetArgumentAtIndex(0), false); 1554 Error error = PluginManager::SaveCore(process_sp, output_file); 1555 if (error.Success()) 1556 { 1557 result.SetStatus (eReturnStatusSuccessFinishResult); 1558 } 1559 else 1560 { 1561 result.AppendErrorWithFormat ("Failed to save core file for process: %s\n", error.AsCString()); 1562 result.SetStatus (eReturnStatusFailed); 1563 } 1564 } 1565 else 1566 { 1567 result.AppendErrorWithFormat ("'%s' takes one arguments:\nUsage: %s\n", 1568 m_cmd_name.c_str(), 1569 m_cmd_syntax.c_str()); 1570 result.SetStatus (eReturnStatusFailed); 1571 } 1572 } 1573 else 1574 { 1575 result.AppendError ("invalid process"); 1576 result.SetStatus (eReturnStatusFailed); 1577 return false; 1578 } 1579 1580 return result.Succeeded(); 1581 } 1582 }; 1583 1584 //------------------------------------------------------------------------- 1585 // CommandObjectProcessStatus 1586 //------------------------------------------------------------------------- 1587 #pragma mark CommandObjectProcessStatus 1588 1589 class CommandObjectProcessStatus : public CommandObjectParsed 1590 { 1591 public: 1592 CommandObjectProcessStatus (CommandInterpreter &interpreter) : 1593 CommandObjectParsed (interpreter, 1594 "process status", 1595 "Show the current status and location of executing process.", 1596 "process status", 1597 eFlagRequiresProcess | eFlagTryTargetAPILock) 1598 { 1599 } 1600 1601 ~CommandObjectProcessStatus() 1602 { 1603 } 1604 1605 1606 bool 1607 DoExecute (Args& command, CommandReturnObject &result) 1608 { 1609 Stream &strm = result.GetOutputStream(); 1610 result.SetStatus (eReturnStatusSuccessFinishNoResult); 1611 // No need to check "process" for validity as eFlagRequiresProcess ensures it is valid 1612 Process *process = m_exe_ctx.GetProcessPtr(); 1613 const bool only_threads_with_stop_reason = true; 1614 const uint32_t start_frame = 0; 1615 const uint32_t num_frames = 1; 1616 const uint32_t num_frames_with_source = 1; 1617 process->GetStatus(strm); 1618 process->GetThreadStatus (strm, 1619 only_threads_with_stop_reason, 1620 start_frame, 1621 num_frames, 1622 num_frames_with_source); 1623 return result.Succeeded(); 1624 } 1625 }; 1626 1627 //------------------------------------------------------------------------- 1628 // CommandObjectProcessHandle 1629 //------------------------------------------------------------------------- 1630 #pragma mark CommandObjectProcessHandle 1631 1632 class CommandObjectProcessHandle : public CommandObjectParsed 1633 { 1634 public: 1635 1636 class CommandOptions : public Options 1637 { 1638 public: 1639 1640 CommandOptions (CommandInterpreter &interpreter) : 1641 Options (interpreter) 1642 { 1643 OptionParsingStarting (); 1644 } 1645 1646 ~CommandOptions () 1647 { 1648 } 1649 1650 Error 1651 SetOptionValue (uint32_t option_idx, const char *option_arg) 1652 { 1653 Error error; 1654 const int short_option = m_getopt_table[option_idx].val; 1655 1656 switch (short_option) 1657 { 1658 case 's': 1659 stop = option_arg; 1660 break; 1661 case 'n': 1662 notify = option_arg; 1663 break; 1664 case 'p': 1665 pass = option_arg; 1666 break; 1667 default: 1668 error.SetErrorStringWithFormat("invalid short option character '%c'", short_option); 1669 break; 1670 } 1671 return error; 1672 } 1673 1674 void 1675 OptionParsingStarting () 1676 { 1677 stop.clear(); 1678 notify.clear(); 1679 pass.clear(); 1680 } 1681 1682 const OptionDefinition* 1683 GetDefinitions () 1684 { 1685 return g_option_table; 1686 } 1687 1688 // Options table: Required for subclasses of Options. 1689 1690 static OptionDefinition g_option_table[]; 1691 1692 // Instance variables to hold the values for command options. 1693 1694 std::string stop; 1695 std::string notify; 1696 std::string pass; 1697 }; 1698 1699 1700 CommandObjectProcessHandle (CommandInterpreter &interpreter) : 1701 CommandObjectParsed (interpreter, 1702 "process handle", 1703 "Show or update what the process and debugger should do with various signals received from the OS.", 1704 NULL), 1705 m_options (interpreter) 1706 { 1707 SetHelpLong ("If no signals are specified, update them all. If no update option is specified, list the current values.\n"); 1708 CommandArgumentEntry arg; 1709 CommandArgumentData signal_arg; 1710 1711 signal_arg.arg_type = eArgTypeUnixSignal; 1712 signal_arg.arg_repetition = eArgRepeatStar; 1713 1714 arg.push_back (signal_arg); 1715 1716 m_arguments.push_back (arg); 1717 } 1718 1719 ~CommandObjectProcessHandle () 1720 { 1721 } 1722 1723 Options * 1724 GetOptions () 1725 { 1726 return &m_options; 1727 } 1728 1729 bool 1730 VerifyCommandOptionValue (const std::string &option, int &real_value) 1731 { 1732 bool okay = true; 1733 1734 bool success = false; 1735 bool tmp_value = Args::StringToBoolean (option.c_str(), false, &success); 1736 1737 if (success && tmp_value) 1738 real_value = 1; 1739 else if (success && !tmp_value) 1740 real_value = 0; 1741 else 1742 { 1743 // If the value isn't 'true' or 'false', it had better be 0 or 1. 1744 real_value = Args::StringToUInt32 (option.c_str(), 3); 1745 if (real_value != 0 && real_value != 1) 1746 okay = false; 1747 } 1748 1749 return okay; 1750 } 1751 1752 void 1753 PrintSignalHeader (Stream &str) 1754 { 1755 str.Printf ("NAME PASS STOP NOTIFY\n"); 1756 str.Printf ("========== ===== ===== ======\n"); 1757 } 1758 1759 void 1760 PrintSignal (Stream &str, int32_t signo, const char *sig_name, UnixSignals &signals) 1761 { 1762 bool stop; 1763 bool suppress; 1764 bool notify; 1765 1766 str.Printf ("%-10s ", sig_name); 1767 if (signals.GetSignalInfo (signo, suppress, stop, notify)) 1768 { 1769 bool pass = !suppress; 1770 str.Printf ("%s %s %s", 1771 (pass ? "true " : "false"), 1772 (stop ? "true " : "false"), 1773 (notify ? "true " : "false")); 1774 } 1775 str.Printf ("\n"); 1776 } 1777 1778 void 1779 PrintSignalInformation (Stream &str, Args &signal_args, int num_valid_signals, UnixSignals &signals) 1780 { 1781 PrintSignalHeader (str); 1782 1783 if (num_valid_signals > 0) 1784 { 1785 size_t num_args = signal_args.GetArgumentCount(); 1786 for (size_t i = 0; i < num_args; ++i) 1787 { 1788 int32_t signo = signals.GetSignalNumberFromName (signal_args.GetArgumentAtIndex (i)); 1789 if (signo != LLDB_INVALID_SIGNAL_NUMBER) 1790 PrintSignal (str, signo, signal_args.GetArgumentAtIndex (i), signals); 1791 } 1792 } 1793 else // Print info for ALL signals 1794 { 1795 int32_t signo = signals.GetFirstSignalNumber(); 1796 while (signo != LLDB_INVALID_SIGNAL_NUMBER) 1797 { 1798 PrintSignal (str, signo, signals.GetSignalAsCString (signo), signals); 1799 signo = signals.GetNextSignalNumber (signo); 1800 } 1801 } 1802 } 1803 1804 protected: 1805 bool 1806 DoExecute (Args &signal_args, CommandReturnObject &result) 1807 { 1808 TargetSP target_sp = m_interpreter.GetDebugger().GetSelectedTarget(); 1809 1810 if (!target_sp) 1811 { 1812 result.AppendError ("No current target;" 1813 " cannot handle signals until you have a valid target and process.\n"); 1814 result.SetStatus (eReturnStatusFailed); 1815 return false; 1816 } 1817 1818 ProcessSP process_sp = target_sp->GetProcessSP(); 1819 1820 if (!process_sp) 1821 { 1822 result.AppendError ("No current process; cannot handle signals until you have a valid process.\n"); 1823 result.SetStatus (eReturnStatusFailed); 1824 return false; 1825 } 1826 1827 int stop_action = -1; // -1 means leave the current setting alone 1828 int pass_action = -1; // -1 means leave the current setting alone 1829 int notify_action = -1; // -1 means leave the current setting alone 1830 1831 if (! m_options.stop.empty() 1832 && ! VerifyCommandOptionValue (m_options.stop, stop_action)) 1833 { 1834 result.AppendError ("Invalid argument for command option --stop; must be true or false.\n"); 1835 result.SetStatus (eReturnStatusFailed); 1836 return false; 1837 } 1838 1839 if (! m_options.notify.empty() 1840 && ! VerifyCommandOptionValue (m_options.notify, notify_action)) 1841 { 1842 result.AppendError ("Invalid argument for command option --notify; must be true or false.\n"); 1843 result.SetStatus (eReturnStatusFailed); 1844 return false; 1845 } 1846 1847 if (! m_options.pass.empty() 1848 && ! VerifyCommandOptionValue (m_options.pass, pass_action)) 1849 { 1850 result.AppendError ("Invalid argument for command option --pass; must be true or false.\n"); 1851 result.SetStatus (eReturnStatusFailed); 1852 return false; 1853 } 1854 1855 size_t num_args = signal_args.GetArgumentCount(); 1856 UnixSignals &signals = process_sp->GetUnixSignals(); 1857 int num_signals_set = 0; 1858 1859 if (num_args > 0) 1860 { 1861 for (size_t i = 0; i < num_args; ++i) 1862 { 1863 int32_t signo = signals.GetSignalNumberFromName (signal_args.GetArgumentAtIndex (i)); 1864 if (signo != LLDB_INVALID_SIGNAL_NUMBER) 1865 { 1866 // Casting the actions as bools here should be okay, because VerifyCommandOptionValue guarantees 1867 // the value is either 0 or 1. 1868 if (stop_action != -1) 1869 signals.SetShouldStop (signo, (bool) stop_action); 1870 if (pass_action != -1) 1871 { 1872 bool suppress = ! ((bool) pass_action); 1873 signals.SetShouldSuppress (signo, suppress); 1874 } 1875 if (notify_action != -1) 1876 signals.SetShouldNotify (signo, (bool) notify_action); 1877 ++num_signals_set; 1878 } 1879 else 1880 { 1881 result.AppendErrorWithFormat ("Invalid signal name '%s'\n", signal_args.GetArgumentAtIndex (i)); 1882 } 1883 } 1884 } 1885 else 1886 { 1887 // No signal specified, if any command options were specified, update ALL signals. 1888 if ((notify_action != -1) || (stop_action != -1) || (pass_action != -1)) 1889 { 1890 if (m_interpreter.Confirm ("Do you really want to update all the signals?", false)) 1891 { 1892 int32_t signo = signals.GetFirstSignalNumber(); 1893 while (signo != LLDB_INVALID_SIGNAL_NUMBER) 1894 { 1895 if (notify_action != -1) 1896 signals.SetShouldNotify (signo, (bool) notify_action); 1897 if (stop_action != -1) 1898 signals.SetShouldStop (signo, (bool) stop_action); 1899 if (pass_action != -1) 1900 { 1901 bool suppress = ! ((bool) pass_action); 1902 signals.SetShouldSuppress (signo, suppress); 1903 } 1904 signo = signals.GetNextSignalNumber (signo); 1905 } 1906 } 1907 } 1908 } 1909 1910 PrintSignalInformation (result.GetOutputStream(), signal_args, num_signals_set, signals); 1911 1912 if (num_signals_set > 0) 1913 result.SetStatus (eReturnStatusSuccessFinishNoResult); 1914 else 1915 result.SetStatus (eReturnStatusFailed); 1916 1917 return result.Succeeded(); 1918 } 1919 1920 CommandOptions m_options; 1921 }; 1922 1923 OptionDefinition 1924 CommandObjectProcessHandle::CommandOptions::g_option_table[] = 1925 { 1926 { 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." }, 1927 { 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." }, 1928 { LLDB_OPT_SET_1, false, "pass", 'p', OptionParser::eRequiredArgument, NULL, NULL, 0, eArgTypeBoolean, "Whether or not the signal should be passed to the process." }, 1929 { 0, false, NULL, 0, 0, NULL, NULL, 0, eArgTypeNone, NULL } 1930 }; 1931 1932 //------------------------------------------------------------------------- 1933 // CommandObjectMultiwordProcess 1934 //------------------------------------------------------------------------- 1935 1936 CommandObjectMultiwordProcess::CommandObjectMultiwordProcess (CommandInterpreter &interpreter) : 1937 CommandObjectMultiword (interpreter, 1938 "process", 1939 "A set of commands for operating on a process.", 1940 "process <subcommand> [<subcommand-options>]") 1941 { 1942 LoadSubCommand ("attach", CommandObjectSP (new CommandObjectProcessAttach (interpreter))); 1943 LoadSubCommand ("launch", CommandObjectSP (new CommandObjectProcessLaunch (interpreter))); 1944 LoadSubCommand ("continue", CommandObjectSP (new CommandObjectProcessContinue (interpreter))); 1945 LoadSubCommand ("connect", CommandObjectSP (new CommandObjectProcessConnect (interpreter))); 1946 LoadSubCommand ("detach", CommandObjectSP (new CommandObjectProcessDetach (interpreter))); 1947 LoadSubCommand ("load", CommandObjectSP (new CommandObjectProcessLoad (interpreter))); 1948 LoadSubCommand ("unload", CommandObjectSP (new CommandObjectProcessUnload (interpreter))); 1949 LoadSubCommand ("signal", CommandObjectSP (new CommandObjectProcessSignal (interpreter))); 1950 LoadSubCommand ("handle", CommandObjectSP (new CommandObjectProcessHandle (interpreter))); 1951 LoadSubCommand ("status", CommandObjectSP (new CommandObjectProcessStatus (interpreter))); 1952 LoadSubCommand ("interrupt", CommandObjectSP (new CommandObjectProcessInterrupt (interpreter))); 1953 LoadSubCommand ("kill", CommandObjectSP (new CommandObjectProcessKill (interpreter))); 1954 LoadSubCommand ("plugin", CommandObjectSP (new CommandObjectProcessPlugin (interpreter))); 1955 LoadSubCommand ("save-core", CommandObjectSP (new CommandObjectProcessSaveCore (interpreter))); 1956 } 1957 1958 CommandObjectMultiwordProcess::~CommandObjectMultiwordProcess () 1959 { 1960 } 1961 1962