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 "CommandObjectProcess.h" 11 12 // C Includes 13 // C++ Includes 14 // Other libraries and framework includes 15 // Project includes 16 #include "lldb/Breakpoint/Breakpoint.h" 17 #include "lldb/Breakpoint/BreakpointLocation.h" 18 #include "lldb/Breakpoint/BreakpointSite.h" 19 #include "lldb/Core/State.h" 20 #include "lldb/Core/Module.h" 21 #include "lldb/Core/PluginManager.h" 22 #include "lldb/Host/Host.h" 23 #include "lldb/Host/StringConvert.h" 24 #include "lldb/Interpreter/Args.h" 25 #include "lldb/Interpreter/Options.h" 26 #include "lldb/Interpreter/CommandInterpreter.h" 27 #include "lldb/Interpreter/CommandReturnObject.h" 28 #include "lldb/Target/Platform.h" 29 #include "lldb/Target/Process.h" 30 #include "lldb/Target/StopInfo.h" 31 #include "lldb/Target/Target.h" 32 #include "lldb/Target/Thread.h" 33 #include "lldb/Target/UnixSignals.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(false)); 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 eCommandRequiresTarget, 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 m_options.launch_info.GetArguments().AppendArguments (target->GetProcessLaunchInfo().GetArguments()); 252 } 253 else 254 { 255 m_options.launch_info.GetArguments().AppendArguments (launch_args); 256 // Save the arguments for subsequent runs in the current target. 257 target->SetRunArguments (launch_args); 258 } 259 260 StreamString stream; 261 Error error = target->Launch(m_options.launch_info, &stream); 262 263 if (error.Success()) 264 { 265 ProcessSP process_sp (target->GetProcessSP()); 266 if (process_sp) 267 { 268 // There is a race condition where this thread will return up the call stack to the main command 269 // handler and show an (lldb) prompt before HandlePrivateEvent (from PrivateStateThread) has 270 // a chance to call PushProcessIOHandler(). 271 process_sp->SyncIOHandler (0, 2000); 272 273 const char *data = stream.GetData(); 274 if (data && strlen(data) > 0) 275 result.AppendMessage(stream.GetData()); 276 const char *archname = exe_module_sp->GetArchitecture().GetArchitectureName(); 277 result.AppendMessageWithFormat ("Process %" PRIu64 " launched: '%s' (%s)\n", process_sp->GetID(), exe_module_sp->GetFileSpec().GetPath().c_str(), archname); 278 result.SetStatus (eReturnStatusSuccessFinishResult); 279 result.SetDidChangeProcessState (true); 280 } 281 else 282 { 283 result.AppendError("no error returned from Target::Launch, and target has no process"); 284 result.SetStatus (eReturnStatusFailed); 285 } 286 } 287 else 288 { 289 result.AppendError(error.AsCString()); 290 result.SetStatus (eReturnStatusFailed); 291 } 292 return result.Succeeded(); 293 } 294 295 protected: 296 ProcessLaunchCommandOptions m_options; 297 }; 298 299 300 //#define SET1 LLDB_OPT_SET_1 301 //#define SET2 LLDB_OPT_SET_2 302 //#define SET3 LLDB_OPT_SET_3 303 // 304 //OptionDefinition 305 //CommandObjectProcessLaunch::CommandOptions::g_option_table[] = 306 //{ 307 //{ 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."}, 308 //{ SET1 , false, "stdin", 'i', OptionParser::eRequiredArgument, NULL, 0, eArgTypeDirectoryName, "Redirect stdin for the process to <path>."}, 309 //{ SET1 , false, "stdout", 'o', OptionParser::eRequiredArgument, NULL, 0, eArgTypeDirectoryName, "Redirect stdout for the process to <path>."}, 310 //{ SET1 , false, "stderr", 'e', OptionParser::eRequiredArgument, NULL, 0, eArgTypeDirectoryName, "Redirect stderr for the process to <path>."}, 311 //{ SET1 | SET2 | SET3, false, "plugin", 'p', OptionParser::eRequiredArgument, NULL, 0, eArgTypePlugin, "Name of the process plugin you want to use."}, 312 //{ 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."}, 313 //{ SET3, false, "no-stdio", 'n', OptionParser::eNoArgument, NULL, 0, eArgTypeNone, "Do not set up for terminal I/O to go to running process."}, 314 //{ SET1 | SET2 | SET3, false, "working-dir", 'w', OptionParser::eRequiredArgument, NULL, 0, eArgTypeDirectoryName, "Set the current working directory to <path> when running the inferior."}, 315 //{ 0, false, NULL, 0, 0, NULL, 0, eArgTypeNone, NULL } 316 //}; 317 // 318 //#undef SET1 319 //#undef SET2 320 //#undef SET3 321 322 //------------------------------------------------------------------------- 323 // CommandObjectProcessAttach 324 //------------------------------------------------------------------------- 325 #pragma mark CommandObjectProcessAttach 326 class CommandObjectProcessAttach : public CommandObjectProcessLaunchOrAttach 327 { 328 public: 329 330 class CommandOptions : public Options 331 { 332 public: 333 334 CommandOptions (CommandInterpreter &interpreter) : 335 Options(interpreter) 336 { 337 // Keep default values of all options in one place: OptionParsingStarting () 338 OptionParsingStarting (); 339 } 340 341 ~CommandOptions () 342 { 343 } 344 345 Error 346 SetOptionValue (uint32_t option_idx, const char *option_arg) 347 { 348 Error error; 349 const int short_option = m_getopt_table[option_idx].val; 350 bool success = false; 351 switch (short_option) 352 { 353 case 'c': 354 attach_info.SetContinueOnceAttached(true); 355 break; 356 357 case 'p': 358 { 359 lldb::pid_t pid = StringConvert::ToUInt32 (option_arg, LLDB_INVALID_PROCESS_ID, 0, &success); 360 if (!success || pid == LLDB_INVALID_PROCESS_ID) 361 { 362 error.SetErrorStringWithFormat("invalid process ID '%s'", option_arg); 363 } 364 else 365 { 366 attach_info.SetProcessID (pid); 367 } 368 } 369 break; 370 371 case 'P': 372 attach_info.SetProcessPluginName (option_arg); 373 break; 374 375 case 'n': 376 attach_info.GetExecutableFile().SetFile(option_arg, false); 377 break; 378 379 case 'w': 380 attach_info.SetWaitForLaunch(true); 381 break; 382 383 case 'i': 384 attach_info.SetIgnoreExisting(false); 385 break; 386 387 default: 388 error.SetErrorStringWithFormat("invalid short option character '%c'", short_option); 389 break; 390 } 391 return error; 392 } 393 394 void 395 OptionParsingStarting () 396 { 397 attach_info.Clear(); 398 } 399 400 const OptionDefinition* 401 GetDefinitions () 402 { 403 return g_option_table; 404 } 405 406 virtual bool 407 HandleOptionArgumentCompletion (Args &input, 408 int cursor_index, 409 int char_pos, 410 OptionElementVector &opt_element_vector, 411 int opt_element_index, 412 int match_start_point, 413 int max_return_elements, 414 bool &word_complete, 415 StringList &matches) 416 { 417 int opt_arg_pos = opt_element_vector[opt_element_index].opt_arg_pos; 418 int opt_defs_index = opt_element_vector[opt_element_index].opt_defs_index; 419 420 // We are only completing the name option for now... 421 422 const OptionDefinition *opt_defs = GetDefinitions(); 423 if (opt_defs[opt_defs_index].short_option == 'n') 424 { 425 // Are we in the name? 426 427 // Look to see if there is a -P argument provided, and if so use that plugin, otherwise 428 // use the default plugin. 429 430 const char *partial_name = NULL; 431 partial_name = input.GetArgumentAtIndex(opt_arg_pos); 432 433 PlatformSP platform_sp (m_interpreter.GetPlatform (true)); 434 if (platform_sp) 435 { 436 ProcessInstanceInfoList process_infos; 437 ProcessInstanceInfoMatch match_info; 438 if (partial_name) 439 { 440 match_info.GetProcessInfo().GetExecutableFile().SetFile(partial_name, false); 441 match_info.SetNameMatchType(eNameMatchStartsWith); 442 } 443 platform_sp->FindProcesses (match_info, process_infos); 444 const size_t num_matches = process_infos.GetSize(); 445 if (num_matches > 0) 446 { 447 for (size_t i=0; i<num_matches; ++i) 448 { 449 matches.AppendString (process_infos.GetProcessNameAtIndex(i), 450 process_infos.GetProcessNameLengthAtIndex(i)); 451 } 452 } 453 } 454 } 455 456 return false; 457 } 458 459 // Options table: Required for subclasses of Options. 460 461 static OptionDefinition g_option_table[]; 462 463 // Instance variables to hold the values for command options. 464 465 ProcessAttachInfo attach_info; 466 }; 467 468 CommandObjectProcessAttach (CommandInterpreter &interpreter) : 469 CommandObjectProcessLaunchOrAttach (interpreter, 470 "process attach", 471 "Attach to a process.", 472 "process attach <cmd-options>", 473 0, 474 "attach"), 475 m_options (interpreter) 476 { 477 } 478 479 ~CommandObjectProcessAttach () 480 { 481 } 482 483 Options * 484 GetOptions () 485 { 486 return &m_options; 487 } 488 489 protected: 490 bool 491 DoExecute (Args& command, 492 CommandReturnObject &result) 493 { 494 PlatformSP platform_sp (m_interpreter.GetDebugger().GetPlatformList().GetSelectedPlatform()); 495 496 Target *target = m_interpreter.GetDebugger().GetSelectedTarget().get(); 497 // N.B. The attach should be synchronous. It doesn't help much to get the prompt back between initiating the attach 498 // and the target actually stopping. So even if the interpreter is set to be asynchronous, we wait for the stop 499 // ourselves here. 500 501 StateType state = eStateInvalid; 502 Process *process = m_exe_ctx.GetProcessPtr(); 503 504 if (!StopProcessIfNecessary (process, state, result)) 505 return false; 506 507 if (target == NULL) 508 { 509 // If there isn't a current target create one. 510 TargetSP new_target_sp; 511 Error error; 512 513 error = m_interpreter.GetDebugger().GetTargetList().CreateTarget (m_interpreter.GetDebugger(), 514 NULL, 515 NULL, 516 false, 517 NULL, // No platform options 518 new_target_sp); 519 target = new_target_sp.get(); 520 if (target == NULL || error.Fail()) 521 { 522 result.AppendError(error.AsCString("Error creating target")); 523 return false; 524 } 525 m_interpreter.GetDebugger().GetTargetList().SetSelectedTarget(target); 526 } 527 528 // Record the old executable module, we want to issue a warning if the process of attaching changed the 529 // current executable (like somebody said "file foo" then attached to a PID whose executable was bar.) 530 531 ModuleSP old_exec_module_sp = target->GetExecutableModule(); 532 ArchSpec old_arch_spec = target->GetArchitecture(); 533 534 if (command.GetArgumentCount()) 535 { 536 result.AppendErrorWithFormat("Invalid arguments for '%s'.\nUsage: %s\n", m_cmd_name.c_str(), m_cmd_syntax.c_str()); 537 result.SetStatus (eReturnStatusFailed); 538 return false; 539 } 540 541 m_interpreter.UpdateExecutionContext(nullptr); 542 StreamString stream; 543 const auto error = target->Attach(m_options.attach_info, &stream); 544 if (error.Success()) 545 { 546 ProcessSP process_sp (target->GetProcessSP()); 547 if (process_sp) 548 { 549 if (stream.GetData()) 550 result.AppendMessage(stream.GetData()); 551 result.SetStatus (eReturnStatusSuccessFinishNoResult); 552 result.SetDidChangeProcessState (true); 553 } 554 else 555 { 556 result.AppendError("no error returned from Target::Attach, and target has no process"); 557 result.SetStatus (eReturnStatusFailed); 558 } 559 } 560 else 561 { 562 result.AppendErrorWithFormat ("attach failed: %s\n", error.AsCString()); 563 result.SetStatus (eReturnStatusFailed); 564 } 565 566 if (!result.Succeeded()) 567 return false; 568 569 // Okay, we're done. Last step is to warn if the executable module has changed: 570 char new_path[PATH_MAX]; 571 ModuleSP new_exec_module_sp (target->GetExecutableModule()); 572 if (!old_exec_module_sp) 573 { 574 // We might not have a module if we attached to a raw pid... 575 if (new_exec_module_sp) 576 { 577 new_exec_module_sp->GetFileSpec().GetPath(new_path, PATH_MAX); 578 result.AppendMessageWithFormat("Executable module set to \"%s\".\n", new_path); 579 } 580 } 581 else if (old_exec_module_sp->GetFileSpec() != new_exec_module_sp->GetFileSpec()) 582 { 583 char old_path[PATH_MAX]; 584 585 old_exec_module_sp->GetFileSpec().GetPath (old_path, PATH_MAX); 586 new_exec_module_sp->GetFileSpec().GetPath (new_path, PATH_MAX); 587 588 result.AppendWarningWithFormat("Executable module changed from \"%s\" to \"%s\".\n", 589 old_path, new_path); 590 } 591 592 if (!old_arch_spec.IsValid()) 593 { 594 result.AppendMessageWithFormat ("Architecture set to: %s.\n", target->GetArchitecture().GetTriple().getTriple().c_str()); 595 } 596 else if (!old_arch_spec.IsExactMatch(target->GetArchitecture())) 597 { 598 result.AppendWarningWithFormat("Architecture changed from %s to %s.\n", 599 old_arch_spec.GetTriple().getTriple().c_str(), 600 target->GetArchitecture().GetTriple().getTriple().c_str()); 601 } 602 603 // This supports the use-case scenario of immediately continuing the process once attached. 604 if (m_options.attach_info.GetContinueOnceAttached()) 605 m_interpreter.HandleCommand("process continue", eLazyBoolNo, result); 606 607 return result.Succeeded(); 608 } 609 610 CommandOptions m_options; 611 }; 612 613 614 OptionDefinition 615 CommandObjectProcessAttach::CommandOptions::g_option_table[] = 616 { 617 { LLDB_OPT_SET_ALL, false, "continue",'c', OptionParser::eNoArgument, NULL, NULL, 0, eArgTypeNone, "Immediately continue the process once attached."}, 618 { LLDB_OPT_SET_ALL, false, "plugin", 'P', OptionParser::eRequiredArgument, NULL, NULL, 0, eArgTypePlugin, "Name of the process plugin you want to use."}, 619 { LLDB_OPT_SET_1, false, "pid", 'p', OptionParser::eRequiredArgument, NULL, NULL, 0, eArgTypePid, "The process ID of an existing process to attach to."}, 620 { LLDB_OPT_SET_2, false, "name", 'n', OptionParser::eRequiredArgument, NULL, NULL, 0, eArgTypeProcessName, "The name of the process to attach to."}, 621 { LLDB_OPT_SET_2, false, "include-existing", 'i', OptionParser::eNoArgument, NULL, NULL, 0, eArgTypeNone, "Include existing processes when doing attach -w."}, 622 { LLDB_OPT_SET_2, false, "waitfor", 'w', OptionParser::eNoArgument, NULL, NULL, 0, eArgTypeNone, "Wait for the process with <process-name> to launch."}, 623 { 0, false, NULL, 0, 0, NULL, NULL, 0, eArgTypeNone, NULL } 624 }; 625 626 //------------------------------------------------------------------------- 627 // CommandObjectProcessContinue 628 //------------------------------------------------------------------------- 629 #pragma mark CommandObjectProcessContinue 630 631 class CommandObjectProcessContinue : public CommandObjectParsed 632 { 633 public: 634 635 CommandObjectProcessContinue (CommandInterpreter &interpreter) : 636 CommandObjectParsed (interpreter, 637 "process continue", 638 "Continue execution of all threads in the current process.", 639 "process continue", 640 eCommandRequiresProcess | 641 eCommandTryTargetAPILock | 642 eCommandProcessMustBeLaunched | 643 eCommandProcessMustBePaused ), 644 m_options(interpreter) 645 { 646 } 647 648 649 ~CommandObjectProcessContinue () 650 { 651 } 652 653 protected: 654 655 class CommandOptions : public Options 656 { 657 public: 658 659 CommandOptions (CommandInterpreter &interpreter) : 660 Options(interpreter) 661 { 662 // Keep default values of all options in one place: OptionParsingStarting () 663 OptionParsingStarting (); 664 } 665 666 ~CommandOptions () 667 { 668 } 669 670 Error 671 SetOptionValue (uint32_t option_idx, const char *option_arg) 672 { 673 Error error; 674 const int short_option = m_getopt_table[option_idx].val; 675 bool success = false; 676 switch (short_option) 677 { 678 case 'i': 679 m_ignore = StringConvert::ToUInt32 (option_arg, 0, 0, &success); 680 if (!success) 681 error.SetErrorStringWithFormat ("invalid value for ignore option: \"%s\", should be a number.", option_arg); 682 break; 683 684 default: 685 error.SetErrorStringWithFormat("invalid short option character '%c'", short_option); 686 break; 687 } 688 return error; 689 } 690 691 void 692 OptionParsingStarting () 693 { 694 m_ignore = 0; 695 } 696 697 const OptionDefinition* 698 GetDefinitions () 699 { 700 return g_option_table; 701 } 702 703 // Options table: Required for subclasses of Options. 704 705 static OptionDefinition g_option_table[]; 706 707 uint32_t m_ignore; 708 }; 709 710 bool 711 DoExecute (Args& command, CommandReturnObject &result) 712 { 713 Process *process = m_exe_ctx.GetProcessPtr(); 714 bool synchronous_execution = m_interpreter.GetSynchronous (); 715 StateType state = process->GetState(); 716 if (state == eStateStopped) 717 { 718 if (command.GetArgumentCount() != 0) 719 { 720 result.AppendErrorWithFormat ("The '%s' command does not take any arguments.\n", m_cmd_name.c_str()); 721 result.SetStatus (eReturnStatusFailed); 722 return false; 723 } 724 725 if (m_options.m_ignore > 0) 726 { 727 ThreadSP sel_thread_sp(process->GetThreadList().GetSelectedThread()); 728 if (sel_thread_sp) 729 { 730 StopInfoSP stop_info_sp = sel_thread_sp->GetStopInfo(); 731 if (stop_info_sp && stop_info_sp->GetStopReason() == eStopReasonBreakpoint) 732 { 733 lldb::break_id_t bp_site_id = (lldb::break_id_t)stop_info_sp->GetValue(); 734 BreakpointSiteSP bp_site_sp(process->GetBreakpointSiteList().FindByID(bp_site_id)); 735 if (bp_site_sp) 736 { 737 const size_t num_owners = bp_site_sp->GetNumberOfOwners(); 738 for (size_t i = 0; i < num_owners; i++) 739 { 740 Breakpoint &bp_ref = bp_site_sp->GetOwnerAtIndex(i)->GetBreakpoint(); 741 if (!bp_ref.IsInternal()) 742 { 743 bp_ref.SetIgnoreCount(m_options.m_ignore); 744 } 745 } 746 } 747 } 748 } 749 } 750 751 { // Scope for thread list mutex: 752 Mutex::Locker locker (process->GetThreadList().GetMutex()); 753 const uint32_t num_threads = process->GetThreadList().GetSize(); 754 755 // Set the actions that the threads should each take when resuming 756 for (uint32_t idx=0; idx<num_threads; ++idx) 757 { 758 const bool override_suspend = false; 759 process->GetThreadList().GetThreadAtIndex(idx)->SetResumeState (eStateRunning, override_suspend); 760 } 761 } 762 763 const uint32_t iohandler_id = process->GetIOHandlerID(); 764 765 StreamString stream; 766 Error error; 767 if (synchronous_execution) 768 error = process->ResumeSynchronous (&stream); 769 else 770 error = process->Resume (); 771 772 if (error.Success()) 773 { 774 // There is a race condition where this thread will return up the call stack to the main command 775 // handler and show an (lldb) prompt before HandlePrivateEvent (from PrivateStateThread) has 776 // a chance to call PushProcessIOHandler(). 777 process->SyncIOHandler(iohandler_id, 2000); 778 779 result.AppendMessageWithFormat ("Process %" PRIu64 " resuming\n", process->GetID()); 780 if (synchronous_execution) 781 { 782 // If any state changed events had anything to say, add that to the result 783 if (stream.GetData()) 784 result.AppendMessage(stream.GetData()); 785 786 result.SetDidChangeProcessState (true); 787 result.SetStatus (eReturnStatusSuccessFinishNoResult); 788 } 789 else 790 { 791 result.SetStatus (eReturnStatusSuccessContinuingNoResult); 792 } 793 } 794 else 795 { 796 result.AppendErrorWithFormat("Failed to resume process: %s.\n", error.AsCString()); 797 result.SetStatus (eReturnStatusFailed); 798 } 799 } 800 else 801 { 802 result.AppendErrorWithFormat ("Process cannot be continued from its current state (%s).\n", 803 StateAsCString(state)); 804 result.SetStatus (eReturnStatusFailed); 805 } 806 return result.Succeeded(); 807 } 808 809 Options * 810 GetOptions () 811 { 812 return &m_options; 813 } 814 815 CommandOptions m_options; 816 817 }; 818 819 OptionDefinition 820 CommandObjectProcessContinue::CommandOptions::g_option_table[] = 821 { 822 { LLDB_OPT_SET_ALL, false, "ignore-count",'i', OptionParser::eRequiredArgument, NULL, NULL, 0, eArgTypeUnsignedInteger, 823 "Ignore <N> crossings of the breakpoint (if it exists) for the currently selected thread."}, 824 { 0, false, NULL, 0, 0, NULL, NULL, 0, eArgTypeNone, NULL } 825 }; 826 827 //------------------------------------------------------------------------- 828 // CommandObjectProcessDetach 829 //------------------------------------------------------------------------- 830 #pragma mark CommandObjectProcessDetach 831 832 class CommandObjectProcessDetach : public CommandObjectParsed 833 { 834 public: 835 class CommandOptions : public Options 836 { 837 public: 838 839 CommandOptions (CommandInterpreter &interpreter) : 840 Options (interpreter) 841 { 842 OptionParsingStarting (); 843 } 844 845 ~CommandOptions () 846 { 847 } 848 849 Error 850 SetOptionValue (uint32_t option_idx, const char *option_arg) 851 { 852 Error error; 853 const int short_option = m_getopt_table[option_idx].val; 854 855 switch (short_option) 856 { 857 case 's': 858 bool tmp_result; 859 bool success; 860 tmp_result = Args::StringToBoolean(option_arg, false, &success); 861 if (!success) 862 error.SetErrorStringWithFormat("invalid boolean option: \"%s\"", option_arg); 863 else 864 { 865 if (tmp_result) 866 m_keep_stopped = eLazyBoolYes; 867 else 868 m_keep_stopped = eLazyBoolNo; 869 } 870 break; 871 default: 872 error.SetErrorStringWithFormat("invalid short option character '%c'", short_option); 873 break; 874 } 875 return error; 876 } 877 878 void 879 OptionParsingStarting () 880 { 881 m_keep_stopped = eLazyBoolCalculate; 882 } 883 884 const OptionDefinition* 885 GetDefinitions () 886 { 887 return g_option_table; 888 } 889 890 // Options table: Required for subclasses of Options. 891 892 static OptionDefinition g_option_table[]; 893 894 // Instance variables to hold the values for command options. 895 LazyBool m_keep_stopped; 896 }; 897 898 CommandObjectProcessDetach (CommandInterpreter &interpreter) : 899 CommandObjectParsed (interpreter, 900 "process detach", 901 "Detach from the current process being debugged.", 902 "process detach", 903 eCommandRequiresProcess | 904 eCommandTryTargetAPILock | 905 eCommandProcessMustBeLaunched), 906 m_options(interpreter) 907 { 908 } 909 910 ~CommandObjectProcessDetach () 911 { 912 } 913 914 Options * 915 GetOptions () 916 { 917 return &m_options; 918 } 919 920 921 protected: 922 bool 923 DoExecute (Args& command, CommandReturnObject &result) 924 { 925 Process *process = m_exe_ctx.GetProcessPtr(); 926 // FIXME: This will be a Command Option: 927 bool keep_stopped; 928 if (m_options.m_keep_stopped == eLazyBoolCalculate) 929 { 930 // Check the process default: 931 if (process->GetDetachKeepsStopped()) 932 keep_stopped = true; 933 else 934 keep_stopped = false; 935 } 936 else if (m_options.m_keep_stopped == eLazyBoolYes) 937 keep_stopped = true; 938 else 939 keep_stopped = false; 940 941 Error error (process->Detach(keep_stopped)); 942 if (error.Success()) 943 { 944 result.SetStatus (eReturnStatusSuccessFinishResult); 945 } 946 else 947 { 948 result.AppendErrorWithFormat ("Detach failed: %s\n", error.AsCString()); 949 result.SetStatus (eReturnStatusFailed); 950 return false; 951 } 952 return result.Succeeded(); 953 } 954 955 CommandOptions m_options; 956 }; 957 958 OptionDefinition 959 CommandObjectProcessDetach::CommandOptions::g_option_table[] = 960 { 961 { 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)." }, 962 { 0, false, NULL, 0, 0, NULL, NULL, 0, eArgTypeNone, NULL } 963 }; 964 965 //------------------------------------------------------------------------- 966 // CommandObjectProcessConnect 967 //------------------------------------------------------------------------- 968 #pragma mark CommandObjectProcessConnect 969 970 class CommandObjectProcessConnect : public CommandObjectParsed 971 { 972 public: 973 974 class CommandOptions : public Options 975 { 976 public: 977 978 CommandOptions (CommandInterpreter &interpreter) : 979 Options(interpreter) 980 { 981 // Keep default values of all options in one place: OptionParsingStarting () 982 OptionParsingStarting (); 983 } 984 985 ~CommandOptions () 986 { 987 } 988 989 Error 990 SetOptionValue (uint32_t option_idx, const char *option_arg) 991 { 992 Error error; 993 const int short_option = m_getopt_table[option_idx].val; 994 995 switch (short_option) 996 { 997 case 'p': 998 plugin_name.assign (option_arg); 999 break; 1000 1001 default: 1002 error.SetErrorStringWithFormat("invalid short option character '%c'", short_option); 1003 break; 1004 } 1005 return error; 1006 } 1007 1008 void 1009 OptionParsingStarting () 1010 { 1011 plugin_name.clear(); 1012 } 1013 1014 const OptionDefinition* 1015 GetDefinitions () 1016 { 1017 return g_option_table; 1018 } 1019 1020 // Options table: Required for subclasses of Options. 1021 1022 static OptionDefinition g_option_table[]; 1023 1024 // Instance variables to hold the values for command options. 1025 1026 std::string plugin_name; 1027 }; 1028 1029 CommandObjectProcessConnect (CommandInterpreter &interpreter) : 1030 CommandObjectParsed (interpreter, 1031 "process connect", 1032 "Connect to a remote debug service.", 1033 "process connect <remote-url>", 1034 0), 1035 m_options (interpreter) 1036 { 1037 } 1038 1039 ~CommandObjectProcessConnect () 1040 { 1041 } 1042 1043 1044 Options * 1045 GetOptions () 1046 { 1047 return &m_options; 1048 } 1049 1050 protected: 1051 bool 1052 DoExecute (Args& command, 1053 CommandReturnObject &result) 1054 { 1055 1056 TargetSP target_sp (m_interpreter.GetDebugger().GetSelectedTarget()); 1057 Error error; 1058 Process *process = m_exe_ctx.GetProcessPtr(); 1059 if (process) 1060 { 1061 if (process->IsAlive()) 1062 { 1063 result.AppendErrorWithFormat ("Process %" PRIu64 " is currently being debugged, kill the process before connecting.\n", 1064 process->GetID()); 1065 result.SetStatus (eReturnStatusFailed); 1066 return false; 1067 } 1068 } 1069 1070 if (!target_sp) 1071 { 1072 // If there isn't a current target create one. 1073 1074 error = m_interpreter.GetDebugger().GetTargetList().CreateTarget (m_interpreter.GetDebugger(), 1075 NULL, 1076 NULL, 1077 false, 1078 NULL, // No platform options 1079 target_sp); 1080 if (!target_sp || error.Fail()) 1081 { 1082 result.AppendError(error.AsCString("Error creating target")); 1083 result.SetStatus (eReturnStatusFailed); 1084 return false; 1085 } 1086 m_interpreter.GetDebugger().GetTargetList().SetSelectedTarget(target_sp.get()); 1087 } 1088 1089 if (command.GetArgumentCount() == 1) 1090 { 1091 const char *plugin_name = NULL; 1092 if (!m_options.plugin_name.empty()) 1093 plugin_name = m_options.plugin_name.c_str(); 1094 1095 const char *remote_url = command.GetArgumentAtIndex(0); 1096 process = target_sp->CreateProcess (m_interpreter.GetDebugger().GetListener(), plugin_name, NULL).get(); 1097 1098 if (process) 1099 { 1100 error = process->ConnectRemote (process->GetTarget().GetDebugger().GetOutputFile().get(), remote_url); 1101 1102 if (error.Fail()) 1103 { 1104 result.AppendError(error.AsCString("Remote connect failed")); 1105 result.SetStatus (eReturnStatusFailed); 1106 target_sp->DeleteCurrentProcess(); 1107 return false; 1108 } 1109 } 1110 else 1111 { 1112 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", 1113 remote_url); 1114 result.SetStatus (eReturnStatusFailed); 1115 } 1116 } 1117 else 1118 { 1119 result.AppendErrorWithFormat ("'%s' takes exactly one argument:\nUsage: %s\n", 1120 m_cmd_name.c_str(), 1121 m_cmd_syntax.c_str()); 1122 result.SetStatus (eReturnStatusFailed); 1123 } 1124 return result.Succeeded(); 1125 } 1126 1127 CommandOptions m_options; 1128 }; 1129 1130 OptionDefinition 1131 CommandObjectProcessConnect::CommandOptions::g_option_table[] = 1132 { 1133 { LLDB_OPT_SET_ALL, false, "plugin", 'p', OptionParser::eRequiredArgument, NULL, NULL, 0, eArgTypePlugin, "Name of the process plugin you want to use."}, 1134 { 0, false, NULL, 0 , 0, NULL, NULL, 0, eArgTypeNone, NULL } 1135 }; 1136 1137 //------------------------------------------------------------------------- 1138 // CommandObjectProcessPlugin 1139 //------------------------------------------------------------------------- 1140 #pragma mark CommandObjectProcessPlugin 1141 1142 class CommandObjectProcessPlugin : public CommandObjectProxy 1143 { 1144 public: 1145 1146 CommandObjectProcessPlugin (CommandInterpreter &interpreter) : 1147 CommandObjectProxy (interpreter, 1148 "process plugin", 1149 "Send a custom command to the current process plug-in.", 1150 "process plugin <args>", 1151 0) 1152 { 1153 } 1154 1155 ~CommandObjectProcessPlugin () 1156 { 1157 } 1158 1159 virtual CommandObject * 1160 GetProxyCommandObject() 1161 { 1162 Process *process = m_interpreter.GetExecutionContext().GetProcessPtr(); 1163 if (process) 1164 return process->GetPluginCommandObject(); 1165 return NULL; 1166 } 1167 }; 1168 1169 1170 //------------------------------------------------------------------------- 1171 // CommandObjectProcessLoad 1172 //------------------------------------------------------------------------- 1173 #pragma mark CommandObjectProcessLoad 1174 1175 class CommandObjectProcessLoad : public CommandObjectParsed 1176 { 1177 public: 1178 1179 CommandObjectProcessLoad (CommandInterpreter &interpreter) : 1180 CommandObjectParsed (interpreter, 1181 "process load", 1182 "Load a shared library into the current process.", 1183 "process load <filename> [<filename> ...]", 1184 eCommandRequiresProcess | 1185 eCommandTryTargetAPILock | 1186 eCommandProcessMustBeLaunched | 1187 eCommandProcessMustBePaused ) 1188 { 1189 } 1190 1191 ~CommandObjectProcessLoad () 1192 { 1193 } 1194 1195 protected: 1196 bool 1197 DoExecute (Args& command, 1198 CommandReturnObject &result) 1199 { 1200 Process *process = m_exe_ctx.GetProcessPtr(); 1201 1202 const size_t argc = command.GetArgumentCount(); 1203 1204 for (uint32_t i=0; i<argc; ++i) 1205 { 1206 Error error; 1207 const char *image_path = command.GetArgumentAtIndex(i); 1208 FileSpec image_spec (image_path, false); 1209 process->GetTarget().GetPlatform()->ResolveRemotePath(image_spec, image_spec); 1210 uint32_t image_token = process->LoadImage(image_spec, error); 1211 if (image_token != LLDB_INVALID_IMAGE_TOKEN) 1212 { 1213 result.AppendMessageWithFormat ("Loading \"%s\"...ok\nImage %u loaded.\n", image_path, image_token); 1214 result.SetStatus (eReturnStatusSuccessFinishResult); 1215 } 1216 else 1217 { 1218 result.AppendErrorWithFormat ("failed to load '%s': %s", image_path, error.AsCString()); 1219 result.SetStatus (eReturnStatusFailed); 1220 } 1221 } 1222 return result.Succeeded(); 1223 } 1224 }; 1225 1226 1227 //------------------------------------------------------------------------- 1228 // CommandObjectProcessUnload 1229 //------------------------------------------------------------------------- 1230 #pragma mark CommandObjectProcessUnload 1231 1232 class CommandObjectProcessUnload : public CommandObjectParsed 1233 { 1234 public: 1235 1236 CommandObjectProcessUnload (CommandInterpreter &interpreter) : 1237 CommandObjectParsed (interpreter, 1238 "process unload", 1239 "Unload a shared library from the current process using the index returned by a previous call to \"process load\".", 1240 "process unload <index>", 1241 eCommandRequiresProcess | 1242 eCommandTryTargetAPILock | 1243 eCommandProcessMustBeLaunched | 1244 eCommandProcessMustBePaused ) 1245 { 1246 } 1247 1248 ~CommandObjectProcessUnload () 1249 { 1250 } 1251 1252 protected: 1253 bool 1254 DoExecute (Args& command, 1255 CommandReturnObject &result) 1256 { 1257 Process *process = m_exe_ctx.GetProcessPtr(); 1258 1259 const size_t argc = command.GetArgumentCount(); 1260 1261 for (uint32_t i=0; i<argc; ++i) 1262 { 1263 const char *image_token_cstr = command.GetArgumentAtIndex(i); 1264 uint32_t image_token = StringConvert::ToUInt32(image_token_cstr, LLDB_INVALID_IMAGE_TOKEN, 0); 1265 if (image_token == LLDB_INVALID_IMAGE_TOKEN) 1266 { 1267 result.AppendErrorWithFormat ("invalid image index argument '%s'", image_token_cstr); 1268 result.SetStatus (eReturnStatusFailed); 1269 break; 1270 } 1271 else 1272 { 1273 Error error (process->UnloadImage(image_token)); 1274 if (error.Success()) 1275 { 1276 result.AppendMessageWithFormat ("Unloading shared library with index %u...ok\n", image_token); 1277 result.SetStatus (eReturnStatusSuccessFinishResult); 1278 } 1279 else 1280 { 1281 result.AppendErrorWithFormat ("failed to unload image: %s", error.AsCString()); 1282 result.SetStatus (eReturnStatusFailed); 1283 break; 1284 } 1285 } 1286 } 1287 return result.Succeeded(); 1288 } 1289 }; 1290 1291 //------------------------------------------------------------------------- 1292 // CommandObjectProcessSignal 1293 //------------------------------------------------------------------------- 1294 #pragma mark CommandObjectProcessSignal 1295 1296 class CommandObjectProcessSignal : public CommandObjectParsed 1297 { 1298 public: 1299 1300 CommandObjectProcessSignal (CommandInterpreter &interpreter) : 1301 CommandObjectParsed (interpreter, 1302 "process signal", 1303 "Send a UNIX signal to the current process being debugged.", 1304 NULL, 1305 eCommandRequiresProcess | eCommandTryTargetAPILock) 1306 { 1307 CommandArgumentEntry arg; 1308 CommandArgumentData signal_arg; 1309 1310 // Define the first (and only) variant of this arg. 1311 signal_arg.arg_type = eArgTypeUnixSignal; 1312 signal_arg.arg_repetition = eArgRepeatPlain; 1313 1314 // There is only one variant this argument could be; put it into the argument entry. 1315 arg.push_back (signal_arg); 1316 1317 // Push the data for the first argument into the m_arguments vector. 1318 m_arguments.push_back (arg); 1319 } 1320 1321 ~CommandObjectProcessSignal () 1322 { 1323 } 1324 1325 protected: 1326 bool 1327 DoExecute (Args& command, 1328 CommandReturnObject &result) 1329 { 1330 Process *process = m_exe_ctx.GetProcessPtr(); 1331 1332 if (command.GetArgumentCount() == 1) 1333 { 1334 int signo = LLDB_INVALID_SIGNAL_NUMBER; 1335 1336 const char *signal_name = command.GetArgumentAtIndex(0); 1337 if (::isxdigit (signal_name[0])) 1338 signo = StringConvert::ToSInt32(signal_name, LLDB_INVALID_SIGNAL_NUMBER, 0); 1339 else 1340 signo = process->GetUnixSignals()->GetSignalNumberFromName(signal_name); 1341 1342 if (signo == LLDB_INVALID_SIGNAL_NUMBER) 1343 { 1344 result.AppendErrorWithFormat ("Invalid signal argument '%s'.\n", command.GetArgumentAtIndex(0)); 1345 result.SetStatus (eReturnStatusFailed); 1346 } 1347 else 1348 { 1349 Error error (process->Signal (signo)); 1350 if (error.Success()) 1351 { 1352 result.SetStatus (eReturnStatusSuccessFinishResult); 1353 } 1354 else 1355 { 1356 result.AppendErrorWithFormat ("Failed to send signal %i: %s\n", signo, error.AsCString()); 1357 result.SetStatus (eReturnStatusFailed); 1358 } 1359 } 1360 } 1361 else 1362 { 1363 result.AppendErrorWithFormat("'%s' takes exactly one signal number argument:\nUsage: %s\n", m_cmd_name.c_str(), 1364 m_cmd_syntax.c_str()); 1365 result.SetStatus (eReturnStatusFailed); 1366 } 1367 return result.Succeeded(); 1368 } 1369 }; 1370 1371 1372 //------------------------------------------------------------------------- 1373 // CommandObjectProcessInterrupt 1374 //------------------------------------------------------------------------- 1375 #pragma mark CommandObjectProcessInterrupt 1376 1377 class CommandObjectProcessInterrupt : public CommandObjectParsed 1378 { 1379 public: 1380 1381 1382 CommandObjectProcessInterrupt (CommandInterpreter &interpreter) : 1383 CommandObjectParsed (interpreter, 1384 "process interrupt", 1385 "Interrupt the current process being debugged.", 1386 "process interrupt", 1387 eCommandRequiresProcess | 1388 eCommandTryTargetAPILock | 1389 eCommandProcessMustBeLaunched) 1390 { 1391 } 1392 1393 ~CommandObjectProcessInterrupt () 1394 { 1395 } 1396 1397 protected: 1398 bool 1399 DoExecute (Args& command, 1400 CommandReturnObject &result) 1401 { 1402 Process *process = m_exe_ctx.GetProcessPtr(); 1403 if (process == NULL) 1404 { 1405 result.AppendError ("no process to halt"); 1406 result.SetStatus (eReturnStatusFailed); 1407 return false; 1408 } 1409 1410 if (command.GetArgumentCount() == 0) 1411 { 1412 bool clear_thread_plans = true; 1413 Error error(process->Halt (clear_thread_plans)); 1414 if (error.Success()) 1415 { 1416 result.SetStatus (eReturnStatusSuccessFinishResult); 1417 } 1418 else 1419 { 1420 result.AppendErrorWithFormat ("Failed to halt process: %s\n", error.AsCString()); 1421 result.SetStatus (eReturnStatusFailed); 1422 } 1423 } 1424 else 1425 { 1426 result.AppendErrorWithFormat("'%s' takes no arguments:\nUsage: %s\n", 1427 m_cmd_name.c_str(), 1428 m_cmd_syntax.c_str()); 1429 result.SetStatus (eReturnStatusFailed); 1430 } 1431 return result.Succeeded(); 1432 } 1433 }; 1434 1435 //------------------------------------------------------------------------- 1436 // CommandObjectProcessKill 1437 //------------------------------------------------------------------------- 1438 #pragma mark CommandObjectProcessKill 1439 1440 class CommandObjectProcessKill : public CommandObjectParsed 1441 { 1442 public: 1443 1444 CommandObjectProcessKill (CommandInterpreter &interpreter) : 1445 CommandObjectParsed (interpreter, 1446 "process kill", 1447 "Terminate the current process being debugged.", 1448 "process kill", 1449 eCommandRequiresProcess | 1450 eCommandTryTargetAPILock | 1451 eCommandProcessMustBeLaunched) 1452 { 1453 } 1454 1455 ~CommandObjectProcessKill () 1456 { 1457 } 1458 1459 protected: 1460 bool 1461 DoExecute (Args& command, 1462 CommandReturnObject &result) 1463 { 1464 Process *process = m_exe_ctx.GetProcessPtr(); 1465 if (process == NULL) 1466 { 1467 result.AppendError ("no process to kill"); 1468 result.SetStatus (eReturnStatusFailed); 1469 return false; 1470 } 1471 1472 if (command.GetArgumentCount() == 0) 1473 { 1474 Error error (process->Destroy(true)); 1475 if (error.Success()) 1476 { 1477 result.SetStatus (eReturnStatusSuccessFinishResult); 1478 } 1479 else 1480 { 1481 result.AppendErrorWithFormat ("Failed to kill process: %s\n", error.AsCString()); 1482 result.SetStatus (eReturnStatusFailed); 1483 } 1484 } 1485 else 1486 { 1487 result.AppendErrorWithFormat("'%s' takes no arguments:\nUsage: %s\n", 1488 m_cmd_name.c_str(), 1489 m_cmd_syntax.c_str()); 1490 result.SetStatus (eReturnStatusFailed); 1491 } 1492 return result.Succeeded(); 1493 } 1494 }; 1495 1496 //------------------------------------------------------------------------- 1497 // CommandObjectProcessSaveCore 1498 //------------------------------------------------------------------------- 1499 #pragma mark CommandObjectProcessSaveCore 1500 1501 class CommandObjectProcessSaveCore : public CommandObjectParsed 1502 { 1503 public: 1504 1505 CommandObjectProcessSaveCore (CommandInterpreter &interpreter) : 1506 CommandObjectParsed (interpreter, 1507 "process save-core", 1508 "Save the current process as a core file using an appropriate file type.", 1509 "process save-core FILE", 1510 eCommandRequiresProcess | 1511 eCommandTryTargetAPILock | 1512 eCommandProcessMustBeLaunched) 1513 { 1514 } 1515 1516 ~CommandObjectProcessSaveCore () 1517 { 1518 } 1519 1520 protected: 1521 bool 1522 DoExecute (Args& command, 1523 CommandReturnObject &result) 1524 { 1525 ProcessSP process_sp = m_exe_ctx.GetProcessSP(); 1526 if (process_sp) 1527 { 1528 if (command.GetArgumentCount() == 1) 1529 { 1530 FileSpec output_file(command.GetArgumentAtIndex(0), false); 1531 Error error = PluginManager::SaveCore(process_sp, output_file); 1532 if (error.Success()) 1533 { 1534 result.SetStatus (eReturnStatusSuccessFinishResult); 1535 } 1536 else 1537 { 1538 result.AppendErrorWithFormat ("Failed to save core file for process: %s\n", error.AsCString()); 1539 result.SetStatus (eReturnStatusFailed); 1540 } 1541 } 1542 else 1543 { 1544 result.AppendErrorWithFormat ("'%s' takes one arguments:\nUsage: %s\n", 1545 m_cmd_name.c_str(), 1546 m_cmd_syntax.c_str()); 1547 result.SetStatus (eReturnStatusFailed); 1548 } 1549 } 1550 else 1551 { 1552 result.AppendError ("invalid process"); 1553 result.SetStatus (eReturnStatusFailed); 1554 return false; 1555 } 1556 1557 return result.Succeeded(); 1558 } 1559 }; 1560 1561 //------------------------------------------------------------------------- 1562 // CommandObjectProcessStatus 1563 //------------------------------------------------------------------------- 1564 #pragma mark CommandObjectProcessStatus 1565 1566 class CommandObjectProcessStatus : public CommandObjectParsed 1567 { 1568 public: 1569 CommandObjectProcessStatus (CommandInterpreter &interpreter) : 1570 CommandObjectParsed (interpreter, 1571 "process status", 1572 "Show the current status and location of executing process.", 1573 "process status", 1574 eCommandRequiresProcess | eCommandTryTargetAPILock) 1575 { 1576 } 1577 1578 ~CommandObjectProcessStatus() 1579 { 1580 } 1581 1582 1583 bool 1584 DoExecute (Args& command, CommandReturnObject &result) 1585 { 1586 Stream &strm = result.GetOutputStream(); 1587 result.SetStatus (eReturnStatusSuccessFinishNoResult); 1588 // No need to check "process" for validity as eCommandRequiresProcess ensures it is valid 1589 Process *process = m_exe_ctx.GetProcessPtr(); 1590 const bool only_threads_with_stop_reason = true; 1591 const uint32_t start_frame = 0; 1592 const uint32_t num_frames = 1; 1593 const uint32_t num_frames_with_source = 1; 1594 process->GetStatus(strm); 1595 process->GetThreadStatus (strm, 1596 only_threads_with_stop_reason, 1597 start_frame, 1598 num_frames, 1599 num_frames_with_source); 1600 return result.Succeeded(); 1601 } 1602 }; 1603 1604 //------------------------------------------------------------------------- 1605 // CommandObjectProcessHandle 1606 //------------------------------------------------------------------------- 1607 #pragma mark CommandObjectProcessHandle 1608 1609 class CommandObjectProcessHandle : public CommandObjectParsed 1610 { 1611 public: 1612 1613 class CommandOptions : public Options 1614 { 1615 public: 1616 1617 CommandOptions (CommandInterpreter &interpreter) : 1618 Options (interpreter) 1619 { 1620 OptionParsingStarting (); 1621 } 1622 1623 ~CommandOptions () 1624 { 1625 } 1626 1627 Error 1628 SetOptionValue (uint32_t option_idx, const char *option_arg) 1629 { 1630 Error error; 1631 const int short_option = m_getopt_table[option_idx].val; 1632 1633 switch (short_option) 1634 { 1635 case 's': 1636 stop = option_arg; 1637 break; 1638 case 'n': 1639 notify = option_arg; 1640 break; 1641 case 'p': 1642 pass = option_arg; 1643 break; 1644 default: 1645 error.SetErrorStringWithFormat("invalid short option character '%c'", short_option); 1646 break; 1647 } 1648 return error; 1649 } 1650 1651 void 1652 OptionParsingStarting () 1653 { 1654 stop.clear(); 1655 notify.clear(); 1656 pass.clear(); 1657 } 1658 1659 const OptionDefinition* 1660 GetDefinitions () 1661 { 1662 return g_option_table; 1663 } 1664 1665 // Options table: Required for subclasses of Options. 1666 1667 static OptionDefinition g_option_table[]; 1668 1669 // Instance variables to hold the values for command options. 1670 1671 std::string stop; 1672 std::string notify; 1673 std::string pass; 1674 }; 1675 1676 1677 CommandObjectProcessHandle (CommandInterpreter &interpreter) : 1678 CommandObjectParsed (interpreter, 1679 "process handle", 1680 "Show or update what the process and debugger should do with various signals received from the OS.", 1681 NULL), 1682 m_options (interpreter) 1683 { 1684 SetHelpLong ("\nIf no signals are specified, update them all. If no update " 1685 "option is specified, list the current values."); 1686 CommandArgumentEntry arg; 1687 CommandArgumentData signal_arg; 1688 1689 signal_arg.arg_type = eArgTypeUnixSignal; 1690 signal_arg.arg_repetition = eArgRepeatStar; 1691 1692 arg.push_back (signal_arg); 1693 1694 m_arguments.push_back (arg); 1695 } 1696 1697 ~CommandObjectProcessHandle () 1698 { 1699 } 1700 1701 Options * 1702 GetOptions () 1703 { 1704 return &m_options; 1705 } 1706 1707 bool 1708 VerifyCommandOptionValue (const std::string &option, int &real_value) 1709 { 1710 bool okay = true; 1711 1712 bool success = false; 1713 bool tmp_value = Args::StringToBoolean (option.c_str(), false, &success); 1714 1715 if (success && tmp_value) 1716 real_value = 1; 1717 else if (success && !tmp_value) 1718 real_value = 0; 1719 else 1720 { 1721 // If the value isn't 'true' or 'false', it had better be 0 or 1. 1722 real_value = StringConvert::ToUInt32 (option.c_str(), 3); 1723 if (real_value != 0 && real_value != 1) 1724 okay = false; 1725 } 1726 1727 return okay; 1728 } 1729 1730 void 1731 PrintSignalHeader (Stream &str) 1732 { 1733 str.Printf ("NAME PASS STOP NOTIFY\n"); 1734 str.Printf ("=========== ===== ===== ======\n"); 1735 } 1736 1737 void 1738 PrintSignal(Stream &str, int32_t signo, const char *sig_name, const UnixSignalsSP &signals_sp) 1739 { 1740 bool stop; 1741 bool suppress; 1742 bool notify; 1743 1744 str.Printf ("%-11s ", sig_name); 1745 if (signals_sp->GetSignalInfo(signo, suppress, stop, notify)) 1746 { 1747 bool pass = !suppress; 1748 str.Printf ("%s %s %s", 1749 (pass ? "true " : "false"), 1750 (stop ? "true " : "false"), 1751 (notify ? "true " : "false")); 1752 } 1753 str.Printf ("\n"); 1754 } 1755 1756 void 1757 PrintSignalInformation(Stream &str, Args &signal_args, int num_valid_signals, const UnixSignalsSP &signals_sp) 1758 { 1759 PrintSignalHeader (str); 1760 1761 if (num_valid_signals > 0) 1762 { 1763 size_t num_args = signal_args.GetArgumentCount(); 1764 for (size_t i = 0; i < num_args; ++i) 1765 { 1766 int32_t signo = signals_sp->GetSignalNumberFromName(signal_args.GetArgumentAtIndex(i)); 1767 if (signo != LLDB_INVALID_SIGNAL_NUMBER) 1768 PrintSignal (str, signo, signal_args.GetArgumentAtIndex (i), signals_sp); 1769 } 1770 } 1771 else // Print info for ALL signals 1772 { 1773 int32_t signo = signals_sp->GetFirstSignalNumber(); 1774 while (signo != LLDB_INVALID_SIGNAL_NUMBER) 1775 { 1776 PrintSignal(str, signo, signals_sp->GetSignalAsCString(signo), signals_sp); 1777 signo = signals_sp->GetNextSignalNumber(signo); 1778 } 1779 } 1780 } 1781 1782 protected: 1783 bool 1784 DoExecute (Args &signal_args, CommandReturnObject &result) 1785 { 1786 TargetSP target_sp = m_interpreter.GetDebugger().GetSelectedTarget(); 1787 1788 if (!target_sp) 1789 { 1790 result.AppendError ("No current target;" 1791 " cannot handle signals until you have a valid target and process.\n"); 1792 result.SetStatus (eReturnStatusFailed); 1793 return false; 1794 } 1795 1796 ProcessSP process_sp = target_sp->GetProcessSP(); 1797 1798 if (!process_sp) 1799 { 1800 result.AppendError ("No current process; cannot handle signals until you have a valid process.\n"); 1801 result.SetStatus (eReturnStatusFailed); 1802 return false; 1803 } 1804 1805 int stop_action = -1; // -1 means leave the current setting alone 1806 int pass_action = -1; // -1 means leave the current setting alone 1807 int notify_action = -1; // -1 means leave the current setting alone 1808 1809 if (! m_options.stop.empty() 1810 && ! VerifyCommandOptionValue (m_options.stop, stop_action)) 1811 { 1812 result.AppendError ("Invalid argument for command option --stop; must be true or false.\n"); 1813 result.SetStatus (eReturnStatusFailed); 1814 return false; 1815 } 1816 1817 if (! m_options.notify.empty() 1818 && ! VerifyCommandOptionValue (m_options.notify, notify_action)) 1819 { 1820 result.AppendError ("Invalid argument for command option --notify; must be true or false.\n"); 1821 result.SetStatus (eReturnStatusFailed); 1822 return false; 1823 } 1824 1825 if (! m_options.pass.empty() 1826 && ! VerifyCommandOptionValue (m_options.pass, pass_action)) 1827 { 1828 result.AppendError ("Invalid argument for command option --pass; must be true or false.\n"); 1829 result.SetStatus (eReturnStatusFailed); 1830 return false; 1831 } 1832 1833 size_t num_args = signal_args.GetArgumentCount(); 1834 UnixSignalsSP signals_sp = process_sp->GetUnixSignals(); 1835 int num_signals_set = 0; 1836 1837 if (num_args > 0) 1838 { 1839 for (size_t i = 0; i < num_args; ++i) 1840 { 1841 int32_t signo = signals_sp->GetSignalNumberFromName(signal_args.GetArgumentAtIndex(i)); 1842 if (signo != LLDB_INVALID_SIGNAL_NUMBER) 1843 { 1844 // Casting the actions as bools here should be okay, because VerifyCommandOptionValue guarantees 1845 // the value is either 0 or 1. 1846 if (stop_action != -1) 1847 signals_sp->SetShouldStop(signo, stop_action); 1848 if (pass_action != -1) 1849 { 1850 bool suppress = !pass_action; 1851 signals_sp->SetShouldSuppress(signo, suppress); 1852 } 1853 if (notify_action != -1) 1854 signals_sp->SetShouldNotify(signo, notify_action); 1855 ++num_signals_set; 1856 } 1857 else 1858 { 1859 result.AppendErrorWithFormat ("Invalid signal name '%s'\n", signal_args.GetArgumentAtIndex (i)); 1860 } 1861 } 1862 } 1863 else 1864 { 1865 // No signal specified, if any command options were specified, update ALL signals. 1866 if ((notify_action != -1) || (stop_action != -1) || (pass_action != -1)) 1867 { 1868 if (m_interpreter.Confirm ("Do you really want to update all the signals?", false)) 1869 { 1870 int32_t signo = signals_sp->GetFirstSignalNumber(); 1871 while (signo != LLDB_INVALID_SIGNAL_NUMBER) 1872 { 1873 if (notify_action != -1) 1874 signals_sp->SetShouldNotify(signo, notify_action); 1875 if (stop_action != -1) 1876 signals_sp->SetShouldStop(signo, stop_action); 1877 if (pass_action != -1) 1878 { 1879 bool suppress = !pass_action; 1880 signals_sp->SetShouldSuppress(signo, suppress); 1881 } 1882 signo = signals_sp->GetNextSignalNumber(signo); 1883 } 1884 } 1885 } 1886 } 1887 1888 PrintSignalInformation (result.GetOutputStream(), signal_args, num_signals_set, signals_sp); 1889 1890 if (num_signals_set > 0) 1891 result.SetStatus (eReturnStatusSuccessFinishNoResult); 1892 else 1893 result.SetStatus (eReturnStatusFailed); 1894 1895 return result.Succeeded(); 1896 } 1897 1898 CommandOptions m_options; 1899 }; 1900 1901 OptionDefinition 1902 CommandObjectProcessHandle::CommandOptions::g_option_table[] = 1903 { 1904 { 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." }, 1905 { 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." }, 1906 { LLDB_OPT_SET_1, false, "pass", 'p', OptionParser::eRequiredArgument, NULL, NULL, 0, eArgTypeBoolean, "Whether or not the signal should be passed to the process." }, 1907 { 0, false, NULL, 0, 0, NULL, NULL, 0, eArgTypeNone, NULL } 1908 }; 1909 1910 //------------------------------------------------------------------------- 1911 // CommandObjectMultiwordProcess 1912 //------------------------------------------------------------------------- 1913 1914 CommandObjectMultiwordProcess::CommandObjectMultiwordProcess (CommandInterpreter &interpreter) : 1915 CommandObjectMultiword (interpreter, 1916 "process", 1917 "A set of commands for operating on a process.", 1918 "process <subcommand> [<subcommand-options>]") 1919 { 1920 LoadSubCommand ("attach", CommandObjectSP (new CommandObjectProcessAttach (interpreter))); 1921 LoadSubCommand ("launch", CommandObjectSP (new CommandObjectProcessLaunch (interpreter))); 1922 LoadSubCommand ("continue", CommandObjectSP (new CommandObjectProcessContinue (interpreter))); 1923 LoadSubCommand ("connect", CommandObjectSP (new CommandObjectProcessConnect (interpreter))); 1924 LoadSubCommand ("detach", CommandObjectSP (new CommandObjectProcessDetach (interpreter))); 1925 LoadSubCommand ("load", CommandObjectSP (new CommandObjectProcessLoad (interpreter))); 1926 LoadSubCommand ("unload", CommandObjectSP (new CommandObjectProcessUnload (interpreter))); 1927 LoadSubCommand ("signal", CommandObjectSP (new CommandObjectProcessSignal (interpreter))); 1928 LoadSubCommand ("handle", CommandObjectSP (new CommandObjectProcessHandle (interpreter))); 1929 LoadSubCommand ("status", CommandObjectSP (new CommandObjectProcessStatus (interpreter))); 1930 LoadSubCommand ("interrupt", CommandObjectSP (new CommandObjectProcessInterrupt (interpreter))); 1931 LoadSubCommand ("kill", CommandObjectSP (new CommandObjectProcessKill (interpreter))); 1932 LoadSubCommand ("plugin", CommandObjectSP (new CommandObjectProcessPlugin (interpreter))); 1933 LoadSubCommand ("save-core", CommandObjectSP (new CommandObjectProcessSaveCore (interpreter))); 1934 } 1935 1936 CommandObjectMultiwordProcess::~CommandObjectMultiwordProcess () 1937 { 1938 } 1939 1940