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/Host/StringConvert.h" 26 #include "lldb/Interpreter/Args.h" 27 #include "lldb/Interpreter/Options.h" 28 #include "lldb/Interpreter/CommandInterpreter.h" 29 #include "lldb/Interpreter/CommandReturnObject.h" 30 #include "lldb/Target/Platform.h" 31 #include "lldb/Target/Process.h" 32 #include "lldb/Target/StopInfo.h" 33 #include "lldb/Target/Target.h" 34 #include "lldb/Target/Thread.h" 35 #include "lldb/Target/UnixSignals.h" 36 37 using namespace lldb; 38 using namespace lldb_private; 39 40 class CommandObjectProcessLaunchOrAttach : public CommandObjectParsed 41 { 42 public: 43 CommandObjectProcessLaunchOrAttach (CommandInterpreter &interpreter, 44 const char *name, 45 const char *help, 46 const char *syntax, 47 uint32_t flags, 48 const char *new_process_action) : 49 CommandObjectParsed (interpreter, name, help, syntax, flags), 50 m_new_process_action (new_process_action) {} 51 52 virtual ~CommandObjectProcessLaunchOrAttach () {} 53 protected: 54 bool 55 StopProcessIfNecessary (Process *process, StateType &state, CommandReturnObject &result) 56 { 57 state = eStateInvalid; 58 if (process) 59 { 60 state = process->GetState(); 61 62 if (process->IsAlive() && state != eStateConnected) 63 { 64 char message[1024]; 65 if (process->GetState() == eStateAttaching) 66 ::snprintf (message, sizeof(message), "There is a pending attach, abort it and %s?", m_new_process_action.c_str()); 67 else if (process->GetShouldDetach()) 68 ::snprintf (message, sizeof(message), "There is a running process, detach from it and %s?", m_new_process_action.c_str()); 69 else 70 ::snprintf (message, sizeof(message), "There is a running process, kill it and %s?", m_new_process_action.c_str()); 71 72 if (!m_interpreter.Confirm (message, true)) 73 { 74 result.SetStatus (eReturnStatusFailed); 75 return false; 76 } 77 else 78 { 79 if (process->GetShouldDetach()) 80 { 81 bool keep_stopped = false; 82 Error detach_error (process->Detach(keep_stopped)); 83 if (detach_error.Success()) 84 { 85 result.SetStatus (eReturnStatusSuccessFinishResult); 86 process = NULL; 87 } 88 else 89 { 90 result.AppendErrorWithFormat ("Failed to detach from process: %s\n", detach_error.AsCString()); 91 result.SetStatus (eReturnStatusFailed); 92 } 93 } 94 else 95 { 96 Error destroy_error (process->Destroy(false)); 97 if (destroy_error.Success()) 98 { 99 result.SetStatus (eReturnStatusSuccessFinishResult); 100 process = NULL; 101 } 102 else 103 { 104 result.AppendErrorWithFormat ("Failed to kill process: %s\n", destroy_error.AsCString()); 105 result.SetStatus (eReturnStatusFailed); 106 } 107 } 108 } 109 } 110 } 111 return result.Succeeded(); 112 } 113 std::string m_new_process_action; 114 }; 115 //------------------------------------------------------------------------- 116 // CommandObjectProcessLaunch 117 //------------------------------------------------------------------------- 118 #pragma mark CommandObjectProcessLaunch 119 class CommandObjectProcessLaunch : public CommandObjectProcessLaunchOrAttach 120 { 121 public: 122 123 CommandObjectProcessLaunch (CommandInterpreter &interpreter) : 124 CommandObjectProcessLaunchOrAttach (interpreter, 125 "process launch", 126 "Launch the executable in the debugger.", 127 NULL, 128 eFlagRequiresTarget, 129 "restart"), 130 m_options (interpreter) 131 { 132 CommandArgumentEntry arg; 133 CommandArgumentData run_args_arg; 134 135 // Define the first (and only) variant of this arg. 136 run_args_arg.arg_type = eArgTypeRunArgs; 137 run_args_arg.arg_repetition = eArgRepeatOptional; 138 139 // There is only one variant this argument could be; put it into the argument entry. 140 arg.push_back (run_args_arg); 141 142 // Push the data for the first argument into the m_arguments vector. 143 m_arguments.push_back (arg); 144 } 145 146 147 ~CommandObjectProcessLaunch () 148 { 149 } 150 151 virtual int 152 HandleArgumentCompletion (Args &input, 153 int &cursor_index, 154 int &cursor_char_position, 155 OptionElementVector &opt_element_vector, 156 int match_start_point, 157 int max_return_elements, 158 bool &word_complete, 159 StringList &matches) 160 { 161 std::string completion_str (input.GetArgumentAtIndex(cursor_index)); 162 completion_str.erase (cursor_char_position); 163 164 CommandCompletions::InvokeCommonCompletionCallbacks (m_interpreter, 165 CommandCompletions::eDiskFileCompletion, 166 completion_str.c_str(), 167 match_start_point, 168 max_return_elements, 169 NULL, 170 word_complete, 171 matches); 172 return matches.GetSize(); 173 } 174 175 Options * 176 GetOptions () 177 { 178 return &m_options; 179 } 180 181 virtual const char *GetRepeatCommand (Args ¤t_command_args, uint32_t index) 182 { 183 // No repeat for "process launch"... 184 return ""; 185 } 186 187 protected: 188 bool 189 DoExecute (Args& launch_args, CommandReturnObject &result) 190 { 191 Debugger &debugger = m_interpreter.GetDebugger(); 192 Target *target = debugger.GetSelectedTarget().get(); 193 // If our listener is NULL, users aren't allows to launch 194 ModuleSP exe_module_sp = target->GetExecutableModule(); 195 196 if (exe_module_sp == NULL) 197 { 198 result.AppendError ("no file in target, create a debug target using the 'target create' command"); 199 result.SetStatus (eReturnStatusFailed); 200 return false; 201 } 202 203 StateType state = eStateInvalid; 204 205 if (!StopProcessIfNecessary(m_exe_ctx.GetProcessPtr(), state, result)) 206 return false; 207 208 const char *target_settings_argv0 = target->GetArg0(); 209 210 // Determine whether we will disable ASLR or leave it in the default state (i.e. enabled if the platform supports it). 211 // First check if the process launch options explicitly turn on/off disabling ASLR. If so, use that setting; 212 // otherwise, use the 'settings target.disable-aslr' setting. 213 bool disable_aslr = false; 214 if (m_options.disable_aslr != eLazyBoolCalculate) 215 { 216 // The user specified an explicit setting on the process launch line. Use it. 217 disable_aslr = (m_options.disable_aslr == eLazyBoolYes); 218 } 219 else 220 { 221 // The user did not explicitly specify whether to disable ASLR. Fall back to the target.disable-aslr setting. 222 disable_aslr = target->GetDisableASLR (); 223 } 224 225 if (disable_aslr) 226 m_options.launch_info.GetFlags().Set (eLaunchFlagDisableASLR); 227 else 228 m_options.launch_info.GetFlags().Clear (eLaunchFlagDisableASLR); 229 230 if (target->GetDetachOnError()) 231 m_options.launch_info.GetFlags().Set (eLaunchFlagDetachOnError); 232 233 if (target->GetDisableSTDIO()) 234 m_options.launch_info.GetFlags().Set (eLaunchFlagDisableSTDIO); 235 236 Args environment; 237 target->GetEnvironmentAsArgs (environment); 238 if (environment.GetArgumentCount() > 0) 239 m_options.launch_info.GetEnvironmentEntries ().AppendArguments (environment); 240 241 if (target_settings_argv0) 242 { 243 m_options.launch_info.GetArguments().AppendArgument (target_settings_argv0); 244 m_options.launch_info.SetExecutableFile(exe_module_sp->GetPlatformFileSpec(), false); 245 } 246 else 247 { 248 m_options.launch_info.SetExecutableFile(exe_module_sp->GetPlatformFileSpec(), true); 249 } 250 251 if (launch_args.GetArgumentCount() == 0) 252 { 253 m_options.launch_info.GetArguments().AppendArguments (target->GetProcessLaunchInfo().GetArguments()); 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 StreamString stream; 263 Error error = target->Launch(m_options.launch_info, &stream); 264 265 if (error.Success()) 266 { 267 ProcessSP process_sp (target->GetProcessSP()); 268 if (process_sp) 269 { 270 // There is a race condition where this thread will return up the call stack to the main command 271 // handler and show an (lldb) prompt before HandlePrivateEvent (from PrivateStateThread) has 272 // a chance to call PushProcessIOHandler(). 273 process_sp->SyncIOHandler(2000); 274 275 const char *data = stream.GetData(); 276 if (data && strlen(data) > 0) 277 result.AppendMessage(stream.GetData()); 278 const char *archname = exe_module_sp->GetArchitecture().GetArchitectureName(); 279 result.AppendMessageWithFormat ("Process %" PRIu64 " launched: '%s' (%s)\n", process_sp->GetID(), exe_module_sp->GetFileSpec().GetPath().c_str(), archname); 280 result.SetStatus (eReturnStatusSuccessFinishResult); 281 result.SetDidChangeProcessState (true); 282 } 283 else 284 { 285 result.AppendError("no error returned from Target::Launch, and target has no process"); 286 result.SetStatus (eReturnStatusFailed); 287 } 288 } 289 else 290 { 291 result.AppendError(error.AsCString()); 292 result.SetStatus (eReturnStatusFailed); 293 } 294 return result.Succeeded(); 295 } 296 297 protected: 298 ProcessLaunchCommandOptions m_options; 299 }; 300 301 302 //#define SET1 LLDB_OPT_SET_1 303 //#define SET2 LLDB_OPT_SET_2 304 //#define SET3 LLDB_OPT_SET_3 305 // 306 //OptionDefinition 307 //CommandObjectProcessLaunch::CommandOptions::g_option_table[] = 308 //{ 309 //{ 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."}, 310 //{ SET1 , false, "stdin", 'i', OptionParser::eRequiredArgument, NULL, 0, eArgTypeDirectoryName, "Redirect stdin for the process to <path>."}, 311 //{ SET1 , false, "stdout", 'o', OptionParser::eRequiredArgument, NULL, 0, eArgTypeDirectoryName, "Redirect stdout for the process to <path>."}, 312 //{ SET1 , false, "stderr", 'e', OptionParser::eRequiredArgument, NULL, 0, eArgTypeDirectoryName, "Redirect stderr for the process to <path>."}, 313 //{ SET1 | SET2 | SET3, false, "plugin", 'p', OptionParser::eRequiredArgument, NULL, 0, eArgTypePlugin, "Name of the process plugin you want to use."}, 314 //{ 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."}, 315 //{ SET3, false, "no-stdio", 'n', OptionParser::eNoArgument, NULL, 0, eArgTypeNone, "Do not set up for terminal I/O to go to running process."}, 316 //{ SET1 | SET2 | SET3, false, "working-dir", 'w', OptionParser::eRequiredArgument, NULL, 0, eArgTypeDirectoryName, "Set the current working directory to <path> when running the inferior."}, 317 //{ 0, false, NULL, 0, 0, NULL, 0, eArgTypeNone, NULL } 318 //}; 319 // 320 //#undef SET1 321 //#undef SET2 322 //#undef SET3 323 324 //------------------------------------------------------------------------- 325 // CommandObjectProcessAttach 326 //------------------------------------------------------------------------- 327 #pragma mark CommandObjectProcessAttach 328 class CommandObjectProcessAttach : public CommandObjectProcessLaunchOrAttach 329 { 330 public: 331 332 class CommandOptions : public Options 333 { 334 public: 335 336 CommandOptions (CommandInterpreter &interpreter) : 337 Options(interpreter) 338 { 339 // Keep default values of all options in one place: OptionParsingStarting () 340 OptionParsingStarting (); 341 } 342 343 ~CommandOptions () 344 { 345 } 346 347 Error 348 SetOptionValue (uint32_t option_idx, const char *option_arg) 349 { 350 Error error; 351 const int short_option = m_getopt_table[option_idx].val; 352 bool success = false; 353 switch (short_option) 354 { 355 case 'c': 356 attach_info.SetContinueOnceAttached(true); 357 break; 358 359 case 'p': 360 { 361 lldb::pid_t pid = StringConvert::ToUInt32 (option_arg, LLDB_INVALID_PROCESS_ID, 0, &success); 362 if (!success || pid == LLDB_INVALID_PROCESS_ID) 363 { 364 error.SetErrorStringWithFormat("invalid process ID '%s'", option_arg); 365 } 366 else 367 { 368 attach_info.SetProcessID (pid); 369 } 370 } 371 break; 372 373 case 'P': 374 attach_info.SetProcessPluginName (option_arg); 375 break; 376 377 case 'n': 378 attach_info.GetExecutableFile().SetFile(option_arg, false); 379 break; 380 381 case 'w': 382 attach_info.SetWaitForLaunch(true); 383 break; 384 385 case 'i': 386 attach_info.SetIgnoreExisting(false); 387 break; 388 389 default: 390 error.SetErrorStringWithFormat("invalid short option character '%c'", short_option); 391 break; 392 } 393 return error; 394 } 395 396 void 397 OptionParsingStarting () 398 { 399 attach_info.Clear(); 400 } 401 402 const OptionDefinition* 403 GetDefinitions () 404 { 405 return g_option_table; 406 } 407 408 virtual bool 409 HandleOptionArgumentCompletion (Args &input, 410 int cursor_index, 411 int char_pos, 412 OptionElementVector &opt_element_vector, 413 int opt_element_index, 414 int match_start_point, 415 int max_return_elements, 416 bool &word_complete, 417 StringList &matches) 418 { 419 int opt_arg_pos = opt_element_vector[opt_element_index].opt_arg_pos; 420 int opt_defs_index = opt_element_vector[opt_element_index].opt_defs_index; 421 422 // We are only completing the name option for now... 423 424 const OptionDefinition *opt_defs = GetDefinitions(); 425 if (opt_defs[opt_defs_index].short_option == 'n') 426 { 427 // Are we in the name? 428 429 // Look to see if there is a -P argument provided, and if so use that plugin, otherwise 430 // use the default plugin. 431 432 const char *partial_name = NULL; 433 partial_name = input.GetArgumentAtIndex(opt_arg_pos); 434 435 PlatformSP platform_sp (m_interpreter.GetPlatform (true)); 436 if (platform_sp) 437 { 438 ProcessInstanceInfoList process_infos; 439 ProcessInstanceInfoMatch match_info; 440 if (partial_name) 441 { 442 match_info.GetProcessInfo().GetExecutableFile().SetFile(partial_name, false); 443 match_info.SetNameMatchType(eNameMatchStartsWith); 444 } 445 platform_sp->FindProcesses (match_info, process_infos); 446 const size_t num_matches = process_infos.GetSize(); 447 if (num_matches > 0) 448 { 449 for (size_t i=0; i<num_matches; ++i) 450 { 451 matches.AppendString (process_infos.GetProcessNameAtIndex(i), 452 process_infos.GetProcessNameLengthAtIndex(i)); 453 } 454 } 455 } 456 } 457 458 return false; 459 } 460 461 // Options table: Required for subclasses of Options. 462 463 static OptionDefinition g_option_table[]; 464 465 // Instance variables to hold the values for command options. 466 467 ProcessAttachInfo attach_info; 468 }; 469 470 CommandObjectProcessAttach (CommandInterpreter &interpreter) : 471 CommandObjectProcessLaunchOrAttach (interpreter, 472 "process attach", 473 "Attach to a process.", 474 "process attach <cmd-options>", 475 0, 476 "attach"), 477 m_options (interpreter) 478 { 479 } 480 481 ~CommandObjectProcessAttach () 482 { 483 } 484 485 Options * 486 GetOptions () 487 { 488 return &m_options; 489 } 490 491 protected: 492 bool 493 DoExecute (Args& command, 494 CommandReturnObject &result) 495 { 496 PlatformSP platform_sp (m_interpreter.GetDebugger().GetPlatformList().GetSelectedPlatform()); 497 498 Target *target = m_interpreter.GetDebugger().GetSelectedTarget().get(); 499 // N.B. The attach should be synchronous. It doesn't help much to get the prompt back between initiating the attach 500 // and the target actually stopping. So even if the interpreter is set to be asynchronous, we wait for the stop 501 // ourselves here. 502 503 StateType state = eStateInvalid; 504 Process *process = m_exe_ctx.GetProcessPtr(); 505 506 if (!StopProcessIfNecessary (process, state, result)) 507 return false; 508 509 if (target == NULL) 510 { 511 // If there isn't a current target create one. 512 TargetSP new_target_sp; 513 Error error; 514 515 error = m_interpreter.GetDebugger().GetTargetList().CreateTarget (m_interpreter.GetDebugger(), 516 NULL, 517 NULL, 518 false, 519 NULL, // No platform options 520 new_target_sp); 521 target = new_target_sp.get(); 522 if (target == NULL || error.Fail()) 523 { 524 result.AppendError(error.AsCString("Error creating target")); 525 return false; 526 } 527 m_interpreter.GetDebugger().GetTargetList().SetSelectedTarget(target); 528 } 529 530 // Record the old executable module, we want to issue a warning if the process of attaching changed the 531 // current executable (like somebody said "file foo" then attached to a PID whose executable was bar.) 532 533 ModuleSP old_exec_module_sp = target->GetExecutableModule(); 534 ArchSpec old_arch_spec = target->GetArchitecture(); 535 536 if (command.GetArgumentCount()) 537 { 538 result.AppendErrorWithFormat("Invalid arguments for '%s'.\nUsage: %s\n", m_cmd_name.c_str(), m_cmd_syntax.c_str()); 539 result.SetStatus (eReturnStatusFailed); 540 return false; 541 } 542 543 m_interpreter.UpdateExecutionContext(nullptr); 544 StreamString stream; 545 const auto error = target->Attach(m_options.attach_info, &stream); 546 if (error.Success()) 547 { 548 ProcessSP process_sp (target->GetProcessSP()); 549 if (process_sp) 550 { 551 if (stream.GetData()) 552 result.AppendMessage(stream.GetData()); 553 result.SetStatus (eReturnStatusSuccessFinishNoResult); 554 result.SetDidChangeProcessState (true); 555 } 556 else 557 { 558 result.AppendError("no error returned from Target::Attach, and target has no process"); 559 result.SetStatus (eReturnStatusFailed); 560 } 561 } 562 else 563 { 564 result.AppendErrorWithFormat ("attach failed: %s\n", error.AsCString()); 565 result.SetStatus (eReturnStatusFailed); 566 } 567 568 if (!result.Succeeded()) 569 return false; 570 571 // Okay, we're done. Last step is to warn if the executable module has changed: 572 char new_path[PATH_MAX]; 573 ModuleSP new_exec_module_sp (target->GetExecutableModule()); 574 if (!old_exec_module_sp) 575 { 576 // We might not have a module if we attached to a raw pid... 577 if (new_exec_module_sp) 578 { 579 new_exec_module_sp->GetFileSpec().GetPath(new_path, PATH_MAX); 580 result.AppendMessageWithFormat("Executable module set to \"%s\".\n", new_path); 581 } 582 } 583 else if (old_exec_module_sp->GetFileSpec() != new_exec_module_sp->GetFileSpec()) 584 { 585 char old_path[PATH_MAX]; 586 587 old_exec_module_sp->GetFileSpec().GetPath (old_path, PATH_MAX); 588 new_exec_module_sp->GetFileSpec().GetPath (new_path, PATH_MAX); 589 590 result.AppendWarningWithFormat("Executable module changed from \"%s\" to \"%s\".\n", 591 old_path, new_path); 592 } 593 594 if (!old_arch_spec.IsValid()) 595 { 596 result.AppendMessageWithFormat ("Architecture set to: %s.\n", target->GetArchitecture().GetTriple().getTriple().c_str()); 597 } 598 else if (!old_arch_spec.IsExactMatch(target->GetArchitecture())) 599 { 600 result.AppendWarningWithFormat("Architecture changed from %s to %s.\n", 601 old_arch_spec.GetTriple().getTriple().c_str(), 602 target->GetArchitecture().GetTriple().getTriple().c_str()); 603 } 604 605 // This supports the use-case scenario of immediately continuing the process once attached. 606 if (m_options.attach_info.GetContinueOnceAttached()) 607 m_interpreter.HandleCommand("process continue", eLazyBoolNo, result); 608 609 return result.Succeeded(); 610 } 611 612 CommandOptions m_options; 613 }; 614 615 616 OptionDefinition 617 CommandObjectProcessAttach::CommandOptions::g_option_table[] = 618 { 619 { LLDB_OPT_SET_ALL, false, "continue",'c', OptionParser::eNoArgument, NULL, NULL, 0, eArgTypeNone, "Immediately continue the process once attached."}, 620 { LLDB_OPT_SET_ALL, false, "plugin", 'P', OptionParser::eRequiredArgument, NULL, NULL, 0, eArgTypePlugin, "Name of the process plugin you want to use."}, 621 { LLDB_OPT_SET_1, false, "pid", 'p', OptionParser::eRequiredArgument, NULL, NULL, 0, eArgTypePid, "The process ID of an existing process to attach to."}, 622 { LLDB_OPT_SET_2, false, "name", 'n', OptionParser::eRequiredArgument, NULL, NULL, 0, eArgTypeProcessName, "The name of the process to attach to."}, 623 { LLDB_OPT_SET_2, false, "include-existing", 'i', OptionParser::eNoArgument, NULL, NULL, 0, eArgTypeNone, "Include existing processes when doing attach -w."}, 624 { LLDB_OPT_SET_2, false, "waitfor", 'w', OptionParser::eNoArgument, NULL, NULL, 0, eArgTypeNone, "Wait for the process with <process-name> to launch."}, 625 { 0, false, NULL, 0, 0, NULL, NULL, 0, eArgTypeNone, NULL } 626 }; 627 628 //------------------------------------------------------------------------- 629 // CommandObjectProcessContinue 630 //------------------------------------------------------------------------- 631 #pragma mark CommandObjectProcessContinue 632 633 class CommandObjectProcessContinue : public CommandObjectParsed 634 { 635 public: 636 637 CommandObjectProcessContinue (CommandInterpreter &interpreter) : 638 CommandObjectParsed (interpreter, 639 "process continue", 640 "Continue execution of all threads in the current process.", 641 "process continue", 642 eFlagRequiresProcess | 643 eFlagTryTargetAPILock | 644 eFlagProcessMustBeLaunched | 645 eFlagProcessMustBePaused ), 646 m_options(interpreter) 647 { 648 } 649 650 651 ~CommandObjectProcessContinue () 652 { 653 } 654 655 protected: 656 657 class CommandOptions : public Options 658 { 659 public: 660 661 CommandOptions (CommandInterpreter &interpreter) : 662 Options(interpreter) 663 { 664 // Keep default values of all options in one place: OptionParsingStarting () 665 OptionParsingStarting (); 666 } 667 668 ~CommandOptions () 669 { 670 } 671 672 Error 673 SetOptionValue (uint32_t option_idx, const char *option_arg) 674 { 675 Error error; 676 const int short_option = m_getopt_table[option_idx].val; 677 bool success = false; 678 switch (short_option) 679 { 680 case 'i': 681 m_ignore = StringConvert::ToUInt32 (option_arg, 0, 0, &success); 682 if (!success) 683 error.SetErrorStringWithFormat ("invalid value for ignore option: \"%s\", should be a number.", option_arg); 684 break; 685 686 default: 687 error.SetErrorStringWithFormat("invalid short option character '%c'", short_option); 688 break; 689 } 690 return error; 691 } 692 693 void 694 OptionParsingStarting () 695 { 696 m_ignore = 0; 697 } 698 699 const OptionDefinition* 700 GetDefinitions () 701 { 702 return g_option_table; 703 } 704 705 // Options table: Required for subclasses of Options. 706 707 static OptionDefinition g_option_table[]; 708 709 uint32_t m_ignore; 710 }; 711 712 bool 713 DoExecute (Args& command, CommandReturnObject &result) 714 { 715 Process *process = m_exe_ctx.GetProcessPtr(); 716 bool synchronous_execution = m_interpreter.GetSynchronous (); 717 StateType state = process->GetState(); 718 if (state == eStateStopped) 719 { 720 if (command.GetArgumentCount() != 0) 721 { 722 result.AppendErrorWithFormat ("The '%s' command does not take any arguments.\n", m_cmd_name.c_str()); 723 result.SetStatus (eReturnStatusFailed); 724 return false; 725 } 726 727 if (m_options.m_ignore > 0) 728 { 729 ThreadSP sel_thread_sp(process->GetThreadList().GetSelectedThread()); 730 if (sel_thread_sp) 731 { 732 StopInfoSP stop_info_sp = sel_thread_sp->GetStopInfo(); 733 if (stop_info_sp && stop_info_sp->GetStopReason() == eStopReasonBreakpoint) 734 { 735 lldb::break_id_t bp_site_id = (lldb::break_id_t)stop_info_sp->GetValue(); 736 BreakpointSiteSP bp_site_sp(process->GetBreakpointSiteList().FindByID(bp_site_id)); 737 if (bp_site_sp) 738 { 739 const size_t num_owners = bp_site_sp->GetNumberOfOwners(); 740 for (size_t i = 0; i < num_owners; i++) 741 { 742 Breakpoint &bp_ref = bp_site_sp->GetOwnerAtIndex(i)->GetBreakpoint(); 743 if (!bp_ref.IsInternal()) 744 { 745 bp_ref.SetIgnoreCount(m_options.m_ignore); 746 } 747 } 748 } 749 } 750 } 751 } 752 753 { // Scope for thread list mutex: 754 Mutex::Locker locker (process->GetThreadList().GetMutex()); 755 const uint32_t num_threads = process->GetThreadList().GetSize(); 756 757 // Set the actions that the threads should each take when resuming 758 for (uint32_t idx=0; idx<num_threads; ++idx) 759 { 760 const bool override_suspend = false; 761 process->GetThreadList().GetThreadAtIndex(idx)->SetResumeState (eStateRunning, override_suspend); 762 } 763 } 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(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 eFlagRequiresProcess | 904 eFlagTryTargetAPILock | 905 eFlagProcessMustBeLaunched), 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 eFlagRequiresProcess | 1185 eFlagTryTargetAPILock | 1186 eFlagProcessMustBeLaunched | 1187 eFlagProcessMustBePaused ) 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 eFlagRequiresProcess | 1242 eFlagTryTargetAPILock | 1243 eFlagProcessMustBeLaunched | 1244 eFlagProcessMustBePaused ) 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 eFlagRequiresProcess | eFlagTryTargetAPILock) 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 eFlagRequiresProcess | 1388 eFlagTryTargetAPILock | 1389 eFlagProcessMustBeLaunched) 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 eFlagRequiresProcess | 1450 eFlagTryTargetAPILock | 1451 eFlagProcessMustBeLaunched) 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 eFlagRequiresProcess | 1511 eFlagTryTargetAPILock | 1512 eFlagProcessMustBeLaunched) 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 eFlagRequiresProcess | eFlagTryTargetAPILock) 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 eFlagRequiresProcess 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 ("If no signals are specified, update them all. If no update option is specified, list the current values.\n"); 1685 CommandArgumentEntry arg; 1686 CommandArgumentData signal_arg; 1687 1688 signal_arg.arg_type = eArgTypeUnixSignal; 1689 signal_arg.arg_repetition = eArgRepeatStar; 1690 1691 arg.push_back (signal_arg); 1692 1693 m_arguments.push_back (arg); 1694 } 1695 1696 ~CommandObjectProcessHandle () 1697 { 1698 } 1699 1700 Options * 1701 GetOptions () 1702 { 1703 return &m_options; 1704 } 1705 1706 bool 1707 VerifyCommandOptionValue (const std::string &option, int &real_value) 1708 { 1709 bool okay = true; 1710 1711 bool success = false; 1712 bool tmp_value = Args::StringToBoolean (option.c_str(), false, &success); 1713 1714 if (success && tmp_value) 1715 real_value = 1; 1716 else if (success && !tmp_value) 1717 real_value = 0; 1718 else 1719 { 1720 // If the value isn't 'true' or 'false', it had better be 0 or 1. 1721 real_value = StringConvert::ToUInt32 (option.c_str(), 3); 1722 if (real_value != 0 && real_value != 1) 1723 okay = false; 1724 } 1725 1726 return okay; 1727 } 1728 1729 void 1730 PrintSignalHeader (Stream &str) 1731 { 1732 str.Printf ("NAME PASS STOP NOTIFY\n"); 1733 str.Printf ("========== ===== ===== ======\n"); 1734 } 1735 1736 void 1737 PrintSignal (Stream &str, int32_t signo, const char *sig_name, UnixSignals &signals) 1738 { 1739 bool stop; 1740 bool suppress; 1741 bool notify; 1742 1743 str.Printf ("%-10s ", sig_name); 1744 if (signals.GetSignalInfo (signo, suppress, stop, notify)) 1745 { 1746 bool pass = !suppress; 1747 str.Printf ("%s %s %s", 1748 (pass ? "true " : "false"), 1749 (stop ? "true " : "false"), 1750 (notify ? "true " : "false")); 1751 } 1752 str.Printf ("\n"); 1753 } 1754 1755 void 1756 PrintSignalInformation (Stream &str, Args &signal_args, int num_valid_signals, UnixSignals &signals) 1757 { 1758 PrintSignalHeader (str); 1759 1760 if (num_valid_signals > 0) 1761 { 1762 size_t num_args = signal_args.GetArgumentCount(); 1763 for (size_t i = 0; i < num_args; ++i) 1764 { 1765 int32_t signo = signals.GetSignalNumberFromName (signal_args.GetArgumentAtIndex (i)); 1766 if (signo != LLDB_INVALID_SIGNAL_NUMBER) 1767 PrintSignal (str, signo, signal_args.GetArgumentAtIndex (i), signals); 1768 } 1769 } 1770 else // Print info for ALL signals 1771 { 1772 int32_t signo = signals.GetFirstSignalNumber(); 1773 while (signo != LLDB_INVALID_SIGNAL_NUMBER) 1774 { 1775 PrintSignal (str, signo, signals.GetSignalAsCString (signo), signals); 1776 signo = signals.GetNextSignalNumber (signo); 1777 } 1778 } 1779 } 1780 1781 protected: 1782 bool 1783 DoExecute (Args &signal_args, CommandReturnObject &result) 1784 { 1785 TargetSP target_sp = m_interpreter.GetDebugger().GetSelectedTarget(); 1786 1787 if (!target_sp) 1788 { 1789 result.AppendError ("No current target;" 1790 " cannot handle signals until you have a valid target and process.\n"); 1791 result.SetStatus (eReturnStatusFailed); 1792 return false; 1793 } 1794 1795 ProcessSP process_sp = target_sp->GetProcessSP(); 1796 1797 if (!process_sp) 1798 { 1799 result.AppendError ("No current process; cannot handle signals until you have a valid process.\n"); 1800 result.SetStatus (eReturnStatusFailed); 1801 return false; 1802 } 1803 1804 int stop_action = -1; // -1 means leave the current setting alone 1805 int pass_action = -1; // -1 means leave the current setting alone 1806 int notify_action = -1; // -1 means leave the current setting alone 1807 1808 if (! m_options.stop.empty() 1809 && ! VerifyCommandOptionValue (m_options.stop, stop_action)) 1810 { 1811 result.AppendError ("Invalid argument for command option --stop; must be true or false.\n"); 1812 result.SetStatus (eReturnStatusFailed); 1813 return false; 1814 } 1815 1816 if (! m_options.notify.empty() 1817 && ! VerifyCommandOptionValue (m_options.notify, notify_action)) 1818 { 1819 result.AppendError ("Invalid argument for command option --notify; must be true or false.\n"); 1820 result.SetStatus (eReturnStatusFailed); 1821 return false; 1822 } 1823 1824 if (! m_options.pass.empty() 1825 && ! VerifyCommandOptionValue (m_options.pass, pass_action)) 1826 { 1827 result.AppendError ("Invalid argument for command option --pass; must be true or false.\n"); 1828 result.SetStatus (eReturnStatusFailed); 1829 return false; 1830 } 1831 1832 size_t num_args = signal_args.GetArgumentCount(); 1833 UnixSignals &signals = process_sp->GetUnixSignals(); 1834 int num_signals_set = 0; 1835 1836 if (num_args > 0) 1837 { 1838 for (size_t i = 0; i < num_args; ++i) 1839 { 1840 int32_t signo = signals.GetSignalNumberFromName (signal_args.GetArgumentAtIndex (i)); 1841 if (signo != LLDB_INVALID_SIGNAL_NUMBER) 1842 { 1843 // Casting the actions as bools here should be okay, because VerifyCommandOptionValue guarantees 1844 // the value is either 0 or 1. 1845 if (stop_action != -1) 1846 signals.SetShouldStop (signo, (bool) stop_action); 1847 if (pass_action != -1) 1848 { 1849 bool suppress = ! ((bool) pass_action); 1850 signals.SetShouldSuppress (signo, suppress); 1851 } 1852 if (notify_action != -1) 1853 signals.SetShouldNotify (signo, (bool) notify_action); 1854 ++num_signals_set; 1855 } 1856 else 1857 { 1858 result.AppendErrorWithFormat ("Invalid signal name '%s'\n", signal_args.GetArgumentAtIndex (i)); 1859 } 1860 } 1861 } 1862 else 1863 { 1864 // No signal specified, if any command options were specified, update ALL signals. 1865 if ((notify_action != -1) || (stop_action != -1) || (pass_action != -1)) 1866 { 1867 if (m_interpreter.Confirm ("Do you really want to update all the signals?", false)) 1868 { 1869 int32_t signo = signals.GetFirstSignalNumber(); 1870 while (signo != LLDB_INVALID_SIGNAL_NUMBER) 1871 { 1872 if (notify_action != -1) 1873 signals.SetShouldNotify (signo, (bool) notify_action); 1874 if (stop_action != -1) 1875 signals.SetShouldStop (signo, (bool) stop_action); 1876 if (pass_action != -1) 1877 { 1878 bool suppress = ! ((bool) pass_action); 1879 signals.SetShouldSuppress (signo, suppress); 1880 } 1881 signo = signals.GetNextSignalNumber (signo); 1882 } 1883 } 1884 } 1885 } 1886 1887 PrintSignalInformation (result.GetOutputStream(), signal_args, num_signals_set, signals); 1888 1889 if (num_signals_set > 0) 1890 result.SetStatus (eReturnStatusSuccessFinishNoResult); 1891 else 1892 result.SetStatus (eReturnStatusFailed); 1893 1894 return result.Succeeded(); 1895 } 1896 1897 CommandOptions m_options; 1898 }; 1899 1900 OptionDefinition 1901 CommandObjectProcessHandle::CommandOptions::g_option_table[] = 1902 { 1903 { 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." }, 1904 { 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." }, 1905 { LLDB_OPT_SET_1, false, "pass", 'p', OptionParser::eRequiredArgument, NULL, NULL, 0, eArgTypeBoolean, "Whether or not the signal should be passed to the process." }, 1906 { 0, false, NULL, 0, 0, NULL, NULL, 0, eArgTypeNone, NULL } 1907 }; 1908 1909 //------------------------------------------------------------------------- 1910 // CommandObjectMultiwordProcess 1911 //------------------------------------------------------------------------- 1912 1913 CommandObjectMultiwordProcess::CommandObjectMultiwordProcess (CommandInterpreter &interpreter) : 1914 CommandObjectMultiword (interpreter, 1915 "process", 1916 "A set of commands for operating on a process.", 1917 "process <subcommand> [<subcommand-options>]") 1918 { 1919 LoadSubCommand ("attach", CommandObjectSP (new CommandObjectProcessAttach (interpreter))); 1920 LoadSubCommand ("launch", CommandObjectSP (new CommandObjectProcessLaunch (interpreter))); 1921 LoadSubCommand ("continue", CommandObjectSP (new CommandObjectProcessContinue (interpreter))); 1922 LoadSubCommand ("connect", CommandObjectSP (new CommandObjectProcessConnect (interpreter))); 1923 LoadSubCommand ("detach", CommandObjectSP (new CommandObjectProcessDetach (interpreter))); 1924 LoadSubCommand ("load", CommandObjectSP (new CommandObjectProcessLoad (interpreter))); 1925 LoadSubCommand ("unload", CommandObjectSP (new CommandObjectProcessUnload (interpreter))); 1926 LoadSubCommand ("signal", CommandObjectSP (new CommandObjectProcessSignal (interpreter))); 1927 LoadSubCommand ("handle", CommandObjectSP (new CommandObjectProcessHandle (interpreter))); 1928 LoadSubCommand ("status", CommandObjectSP (new CommandObjectProcessStatus (interpreter))); 1929 LoadSubCommand ("interrupt", CommandObjectSP (new CommandObjectProcessInterrupt (interpreter))); 1930 LoadSubCommand ("kill", CommandObjectSP (new CommandObjectProcessKill (interpreter))); 1931 LoadSubCommand ("plugin", CommandObjectSP (new CommandObjectProcessPlugin (interpreter))); 1932 LoadSubCommand ("save-core", CommandObjectSP (new CommandObjectProcessSaveCore (interpreter))); 1933 } 1934 1935 CommandObjectMultiwordProcess::~CommandObjectMultiwordProcess () 1936 { 1937 } 1938 1939