1 //===-- CommandObjectProcess.cpp --------------------------------*- C++ -*-===// 2 // 3 // The LLVM Compiler Infrastructure 4 // 5 // This file is distributed under the University of Illinois Open Source 6 // License. See LICENSE.TXT for details. 7 // 8 //===----------------------------------------------------------------------===// 9 10 #include "lldb/lldb-python.h" 11 12 #include "CommandObjectProcess.h" 13 14 // C Includes 15 // C++ Includes 16 // Other libraries and framework includes 17 // Project includes 18 #include "lldb/Breakpoint/Breakpoint.h" 19 #include "lldb/Breakpoint/BreakpointLocation.h" 20 #include "lldb/Breakpoint/BreakpointSite.h" 21 #include "lldb/Core/State.h" 22 #include "lldb/Core/Module.h" 23 #include "lldb/Core/PluginManager.h" 24 #include "lldb/Host/Host.h" 25 #include "lldb/Interpreter/Args.h" 26 #include "lldb/Interpreter/Options.h" 27 #include "lldb/Interpreter/CommandInterpreter.h" 28 #include "lldb/Interpreter/CommandReturnObject.h" 29 #include "lldb/Target/Platform.h" 30 #include "lldb/Target/Process.h" 31 #include "lldb/Target/StopInfo.h" 32 #include "lldb/Target/Target.h" 33 #include "lldb/Target/Thread.h" 34 35 using namespace lldb; 36 using namespace lldb_private; 37 38 class CommandObjectProcessLaunchOrAttach : public CommandObjectParsed 39 { 40 public: 41 CommandObjectProcessLaunchOrAttach (CommandInterpreter &interpreter, 42 const char *name, 43 const char *help, 44 const char *syntax, 45 uint32_t flags, 46 const char *new_process_action) : 47 CommandObjectParsed (interpreter, name, help, syntax, flags), 48 m_new_process_action (new_process_action) {} 49 50 virtual ~CommandObjectProcessLaunchOrAttach () {} 51 protected: 52 bool 53 StopProcessIfNecessary (Process *process, StateType &state, CommandReturnObject &result) 54 { 55 state = eStateInvalid; 56 if (process) 57 { 58 state = process->GetState(); 59 60 if (process->IsAlive() && state != eStateConnected) 61 { 62 char message[1024]; 63 if (process->GetState() == eStateAttaching) 64 ::snprintf (message, sizeof(message), "There is a pending attach, abort it and %s?", m_new_process_action.c_str()); 65 else if (process->GetShouldDetach()) 66 ::snprintf (message, sizeof(message), "There is a running process, detach from it and %s?", m_new_process_action.c_str()); 67 else 68 ::snprintf (message, sizeof(message), "There is a running process, kill it and %s?", m_new_process_action.c_str()); 69 70 if (!m_interpreter.Confirm (message, true)) 71 { 72 result.SetStatus (eReturnStatusFailed); 73 return false; 74 } 75 else 76 { 77 if (process->GetShouldDetach()) 78 { 79 bool keep_stopped = false; 80 Error detach_error (process->Detach(keep_stopped)); 81 if (detach_error.Success()) 82 { 83 result.SetStatus (eReturnStatusSuccessFinishResult); 84 process = NULL; 85 } 86 else 87 { 88 result.AppendErrorWithFormat ("Failed to detach from process: %s\n", detach_error.AsCString()); 89 result.SetStatus (eReturnStatusFailed); 90 } 91 } 92 else 93 { 94 Error destroy_error (process->Destroy()); 95 if (destroy_error.Success()) 96 { 97 result.SetStatus (eReturnStatusSuccessFinishResult); 98 process = NULL; 99 } 100 else 101 { 102 result.AppendErrorWithFormat ("Failed to kill process: %s\n", destroy_error.AsCString()); 103 result.SetStatus (eReturnStatusFailed); 104 } 105 } 106 } 107 } 108 } 109 return result.Succeeded(); 110 } 111 std::string m_new_process_action; 112 }; 113 //------------------------------------------------------------------------- 114 // CommandObjectProcessLaunch 115 //------------------------------------------------------------------------- 116 #pragma mark CommandObjectProcessLaunch 117 class CommandObjectProcessLaunch : public CommandObjectProcessLaunchOrAttach 118 { 119 public: 120 121 CommandObjectProcessLaunch (CommandInterpreter &interpreter) : 122 CommandObjectProcessLaunchOrAttach (interpreter, 123 "process launch", 124 "Launch the executable in the debugger.", 125 NULL, 126 eFlagRequiresTarget, 127 "restart"), 128 m_options (interpreter) 129 { 130 CommandArgumentEntry arg; 131 CommandArgumentData run_args_arg; 132 133 // Define the first (and only) variant of this arg. 134 run_args_arg.arg_type = eArgTypeRunArgs; 135 run_args_arg.arg_repetition = eArgRepeatOptional; 136 137 // There is only one variant this argument could be; put it into the argument entry. 138 arg.push_back (run_args_arg); 139 140 // Push the data for the first argument into the m_arguments vector. 141 m_arguments.push_back (arg); 142 } 143 144 145 ~CommandObjectProcessLaunch () 146 { 147 } 148 149 virtual int 150 HandleArgumentCompletion (Args &input, 151 int &cursor_index, 152 int &cursor_char_position, 153 OptionElementVector &opt_element_vector, 154 int match_start_point, 155 int max_return_elements, 156 bool &word_complete, 157 StringList &matches) 158 { 159 std::string completion_str (input.GetArgumentAtIndex(cursor_index)); 160 completion_str.erase (cursor_char_position); 161 162 CommandCompletions::InvokeCommonCompletionCallbacks (m_interpreter, 163 CommandCompletions::eDiskFileCompletion, 164 completion_str.c_str(), 165 match_start_point, 166 max_return_elements, 167 NULL, 168 word_complete, 169 matches); 170 return matches.GetSize(); 171 } 172 173 Options * 174 GetOptions () 175 { 176 return &m_options; 177 } 178 179 virtual const char *GetRepeatCommand (Args ¤t_command_args, uint32_t index) 180 { 181 // No repeat for "process launch"... 182 return ""; 183 } 184 185 protected: 186 bool 187 DoExecute (Args& launch_args, CommandReturnObject &result) 188 { 189 Debugger &debugger = m_interpreter.GetDebugger(); 190 Target *target = debugger.GetSelectedTarget().get(); 191 // If our listener is NULL, users aren't allows to launch 192 ModuleSP exe_module_sp = target->GetExecutableModule(); 193 194 if (exe_module_sp == NULL) 195 { 196 result.AppendError ("no file in target, create a debug target using the 'target create' command"); 197 result.SetStatus (eReturnStatusFailed); 198 return false; 199 } 200 201 StateType state = eStateInvalid; 202 203 if (!StopProcessIfNecessary(m_exe_ctx.GetProcessPtr(), state, result)) 204 return false; 205 206 const char *target_settings_argv0 = target->GetArg0(); 207 208 // Determine whether we will disable ASLR or leave it in the default state (i.e. enabled if the platform supports it). 209 // First check if the process launch options explicitly turn on/off disabling ASLR. If so, use that setting; 210 // otherwise, use the 'settings target.disable-aslr' setting. 211 bool disable_aslr = false; 212 if (m_options.disable_aslr != eLazyBoolCalculate) 213 { 214 // The user specified an explicit setting on the process launch line. Use it. 215 disable_aslr = (m_options.disable_aslr == eLazyBoolYes); 216 } 217 else 218 { 219 // The user did not explicitly specify whether to disable ASLR. Fall back to the target.disable-aslr setting. 220 disable_aslr = target->GetDisableASLR (); 221 } 222 223 if (disable_aslr) 224 m_options.launch_info.GetFlags().Set (eLaunchFlagDisableASLR); 225 else 226 m_options.launch_info.GetFlags().Clear (eLaunchFlagDisableASLR); 227 228 if (target->GetDetachOnError()) 229 m_options.launch_info.GetFlags().Set (eLaunchFlagDetachOnError); 230 231 if (target->GetDisableSTDIO()) 232 m_options.launch_info.GetFlags().Set (eLaunchFlagDisableSTDIO); 233 234 Args environment; 235 target->GetEnvironmentAsArgs (environment); 236 if (environment.GetArgumentCount() > 0) 237 m_options.launch_info.GetEnvironmentEntries ().AppendArguments (environment); 238 239 if (target_settings_argv0) 240 { 241 m_options.launch_info.GetArguments().AppendArgument (target_settings_argv0); 242 m_options.launch_info.SetExecutableFile(exe_module_sp->GetPlatformFileSpec(), false); 243 } 244 else 245 { 246 m_options.launch_info.SetExecutableFile(exe_module_sp->GetPlatformFileSpec(), true); 247 } 248 249 if (launch_args.GetArgumentCount() == 0) 250 { 251 Args target_setting_args; 252 if (target->GetRunArguments(target_setting_args)) 253 m_options.launch_info.GetArguments().AppendArguments (target_setting_args); 254 } 255 else 256 { 257 m_options.launch_info.GetArguments().AppendArguments (launch_args); 258 // Save the arguments for subsequent runs in the current target. 259 target->SetRunArguments (launch_args); 260 } 261 262 StreamString stream; 263 Error error = target->Launch(debugger.GetListener(), m_options.launch_info, &stream); 264 265 if (error.Success()) 266 { 267 const char *archname = exe_module_sp->GetArchitecture().GetArchitectureName(); 268 ProcessSP process_sp (target->GetProcessSP()); 269 if (process_sp) 270 { 271 if (stream.GetData()) 272 result.AppendMessage(stream.GetData()); 273 result.AppendMessageWithFormat ("Process %" PRIu64 " launched: '%s' (%s)\n", process_sp->GetID(), exe_module_sp->GetFileSpec().GetPath().c_str(), archname); 274 result.SetStatus (eReturnStatusSuccessFinishResult); 275 result.SetDidChangeProcessState (true); 276 } 277 else 278 { 279 result.AppendError("no error returned from Target::Launch, and target has no process"); 280 result.SetStatus (eReturnStatusFailed); 281 } 282 } 283 else 284 { 285 result.AppendError(error.AsCString()); 286 result.SetStatus (eReturnStatusFailed); 287 } 288 return result.Succeeded(); 289 } 290 291 protected: 292 ProcessLaunchCommandOptions m_options; 293 }; 294 295 296 //#define SET1 LLDB_OPT_SET_1 297 //#define SET2 LLDB_OPT_SET_2 298 //#define SET3 LLDB_OPT_SET_3 299 // 300 //OptionDefinition 301 //CommandObjectProcessLaunch::CommandOptions::g_option_table[] = 302 //{ 303 //{ 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."}, 304 //{ SET1 , false, "stdin", 'i', OptionParser::eRequiredArgument, NULL, 0, eArgTypeDirectoryName, "Redirect stdin for the process to <path>."}, 305 //{ SET1 , false, "stdout", 'o', OptionParser::eRequiredArgument, NULL, 0, eArgTypeDirectoryName, "Redirect stdout for the process to <path>."}, 306 //{ SET1 , false, "stderr", 'e', OptionParser::eRequiredArgument, NULL, 0, eArgTypeDirectoryName, "Redirect stderr for the process to <path>."}, 307 //{ SET1 | SET2 | SET3, false, "plugin", 'p', OptionParser::eRequiredArgument, NULL, 0, eArgTypePlugin, "Name of the process plugin you want to use."}, 308 //{ 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."}, 309 //{ SET3, false, "no-stdio", 'n', OptionParser::eNoArgument, NULL, 0, eArgTypeNone, "Do not set up for terminal I/O to go to running process."}, 310 //{ SET1 | SET2 | SET3, false, "working-dir", 'w', OptionParser::eRequiredArgument, NULL, 0, eArgTypeDirectoryName, "Set the current working directory to <path> when running the inferior."}, 311 //{ 0, false, NULL, 0, 0, NULL, 0, eArgTypeNone, NULL } 312 //}; 313 // 314 //#undef SET1 315 //#undef SET2 316 //#undef SET3 317 318 //------------------------------------------------------------------------- 319 // CommandObjectProcessAttach 320 //------------------------------------------------------------------------- 321 #pragma mark CommandObjectProcessAttach 322 class CommandObjectProcessAttach : public CommandObjectProcessLaunchOrAttach 323 { 324 public: 325 326 class CommandOptions : public Options 327 { 328 public: 329 330 CommandOptions (CommandInterpreter &interpreter) : 331 Options(interpreter) 332 { 333 // Keep default values of all options in one place: OptionParsingStarting () 334 OptionParsingStarting (); 335 } 336 337 ~CommandOptions () 338 { 339 } 340 341 Error 342 SetOptionValue (uint32_t option_idx, const char *option_arg) 343 { 344 Error error; 345 const int short_option = m_getopt_table[option_idx].val; 346 bool success = false; 347 switch (short_option) 348 { 349 case 'c': 350 attach_info.SetContinueOnceAttached(true); 351 break; 352 353 case 'p': 354 { 355 lldb::pid_t pid = Args::StringToUInt32 (option_arg, LLDB_INVALID_PROCESS_ID, 0, &success); 356 if (!success || pid == LLDB_INVALID_PROCESS_ID) 357 { 358 error.SetErrorStringWithFormat("invalid process ID '%s'", option_arg); 359 } 360 else 361 { 362 attach_info.SetProcessID (pid); 363 } 364 } 365 break; 366 367 case 'P': 368 attach_info.SetProcessPluginName (option_arg); 369 break; 370 371 case 'n': 372 attach_info.GetExecutableFile().SetFile(option_arg, false); 373 break; 374 375 case 'w': 376 attach_info.SetWaitForLaunch(true); 377 break; 378 379 case 'i': 380 attach_info.SetIgnoreExisting(false); 381 break; 382 383 default: 384 error.SetErrorStringWithFormat("invalid short option character '%c'", short_option); 385 break; 386 } 387 return error; 388 } 389 390 void 391 OptionParsingStarting () 392 { 393 attach_info.Clear(); 394 } 395 396 const OptionDefinition* 397 GetDefinitions () 398 { 399 return g_option_table; 400 } 401 402 virtual bool 403 HandleOptionArgumentCompletion (Args &input, 404 int cursor_index, 405 int char_pos, 406 OptionElementVector &opt_element_vector, 407 int opt_element_index, 408 int match_start_point, 409 int max_return_elements, 410 bool &word_complete, 411 StringList &matches) 412 { 413 int opt_arg_pos = opt_element_vector[opt_element_index].opt_arg_pos; 414 int opt_defs_index = opt_element_vector[opt_element_index].opt_defs_index; 415 416 // We are only completing the name option for now... 417 418 const OptionDefinition *opt_defs = GetDefinitions(); 419 if (opt_defs[opt_defs_index].short_option == 'n') 420 { 421 // Are we in the name? 422 423 // Look to see if there is a -P argument provided, and if so use that plugin, otherwise 424 // use the default plugin. 425 426 const char *partial_name = NULL; 427 partial_name = input.GetArgumentAtIndex(opt_arg_pos); 428 429 PlatformSP platform_sp (m_interpreter.GetPlatform (true)); 430 if (platform_sp) 431 { 432 ProcessInstanceInfoList process_infos; 433 ProcessInstanceInfoMatch match_info; 434 if (partial_name) 435 { 436 match_info.GetProcessInfo().GetExecutableFile().SetFile(partial_name, false); 437 match_info.SetNameMatchType(eNameMatchStartsWith); 438 } 439 platform_sp->FindProcesses (match_info, process_infos); 440 const size_t num_matches = process_infos.GetSize(); 441 if (num_matches > 0) 442 { 443 for (size_t i=0; i<num_matches; ++i) 444 { 445 matches.AppendString (process_infos.GetProcessNameAtIndex(i), 446 process_infos.GetProcessNameLengthAtIndex(i)); 447 } 448 } 449 } 450 } 451 452 return false; 453 } 454 455 // Options table: Required for subclasses of Options. 456 457 static OptionDefinition g_option_table[]; 458 459 // Instance variables to hold the values for command options. 460 461 ProcessAttachInfo attach_info; 462 }; 463 464 CommandObjectProcessAttach (CommandInterpreter &interpreter) : 465 CommandObjectProcessLaunchOrAttach (interpreter, 466 "process attach", 467 "Attach to a process.", 468 "process attach <cmd-options>", 469 0, 470 "attach"), 471 m_options (interpreter) 472 { 473 } 474 475 ~CommandObjectProcessAttach () 476 { 477 } 478 479 Options * 480 GetOptions () 481 { 482 return &m_options; 483 } 484 485 protected: 486 bool 487 DoExecute (Args& command, 488 CommandReturnObject &result) 489 { 490 Target *target = m_interpreter.GetDebugger().GetSelectedTarget().get(); 491 // N.B. The attach should be synchronous. It doesn't help much to get the prompt back between initiating the attach 492 // and the target actually stopping. So even if the interpreter is set to be asynchronous, we wait for the stop 493 // ourselves here. 494 495 StateType state = eStateInvalid; 496 Process *process = m_exe_ctx.GetProcessPtr(); 497 498 if (!StopProcessIfNecessary (process, state, result)) 499 return false; 500 501 if (target == NULL) 502 { 503 // If there isn't a current target create one. 504 TargetSP new_target_sp; 505 Error error; 506 507 error = m_interpreter.GetDebugger().GetTargetList().CreateTarget (m_interpreter.GetDebugger(), 508 NULL, 509 NULL, 510 false, 511 NULL, // No platform options 512 new_target_sp); 513 target = new_target_sp.get(); 514 if (target == NULL || error.Fail()) 515 { 516 result.AppendError(error.AsCString("Error creating target")); 517 return false; 518 } 519 m_interpreter.GetDebugger().GetTargetList().SetSelectedTarget(target); 520 } 521 522 // Record the old executable module, we want to issue a warning if the process of attaching changed the 523 // current executable (like somebody said "file foo" then attached to a PID whose executable was bar.) 524 525 ModuleSP old_exec_module_sp = target->GetExecutableModule(); 526 ArchSpec old_arch_spec = target->GetArchitecture(); 527 528 if (command.GetArgumentCount()) 529 { 530 result.AppendErrorWithFormat("Invalid arguments for '%s'.\nUsage: %s\n", m_cmd_name.c_str(), m_cmd_syntax.c_str()); 531 result.SetStatus (eReturnStatusFailed); 532 } 533 else 534 { 535 if (state != eStateConnected) 536 { 537 const char *plugin_name = m_options.attach_info.GetProcessPluginName(); 538 process = target->CreateProcess (m_interpreter.GetDebugger().GetListener(), plugin_name, NULL).get(); 539 } 540 541 if (process) 542 { 543 Error error; 544 // If no process info was specified, then use the target executable 545 // name as the process to attach to by default 546 if (!m_options.attach_info.ProcessInfoSpecified ()) 547 { 548 if (old_exec_module_sp) 549 m_options.attach_info.GetExecutableFile().GetFilename() = old_exec_module_sp->GetPlatformFileSpec().GetFilename(); 550 551 if (!m_options.attach_info.ProcessInfoSpecified ()) 552 { 553 error.SetErrorString ("no process specified, create a target with a file, or specify the --pid or --name command option"); 554 } 555 } 556 557 if (error.Success()) 558 { 559 // Update the execution context so the current target and process are now selected 560 // in case we interrupt 561 m_interpreter.UpdateExecutionContext(NULL); 562 ListenerSP listener_sp (new Listener("lldb.CommandObjectProcessAttach.DoExecute.attach.hijack")); 563 m_options.attach_info.SetHijackListener(listener_sp); 564 process->HijackProcessEvents(listener_sp.get()); 565 error = process->Attach (m_options.attach_info); 566 567 if (error.Success()) 568 { 569 result.SetStatus (eReturnStatusSuccessContinuingNoResult); 570 StreamString stream; 571 StateType state = process->WaitForProcessToStop (NULL, NULL, false, listener_sp.get(), &stream); 572 573 process->RestoreProcessEvents(); 574 575 result.SetDidChangeProcessState (true); 576 577 if (stream.GetData()) 578 result.AppendMessage(stream.GetData()); 579 580 if (state == eStateStopped) 581 { 582 result.SetStatus (eReturnStatusSuccessFinishNoResult); 583 } 584 else 585 { 586 const char *exit_desc = process->GetExitDescription(); 587 if (exit_desc) 588 result.AppendErrorWithFormat ("attach failed: %s", exit_desc); 589 else 590 result.AppendError ("attach failed: process did not stop (no such process or permission problem?)"); 591 process->Destroy(); 592 result.SetStatus (eReturnStatusFailed); 593 } 594 } 595 else 596 { 597 result.AppendErrorWithFormat ("attach failed: %s\n", error.AsCString()); 598 result.SetStatus (eReturnStatusFailed); 599 } 600 } 601 } 602 } 603 604 if (result.Succeeded()) 605 { 606 // Okay, we're done. Last step is to warn if the executable module has changed: 607 char new_path[PATH_MAX]; 608 ModuleSP new_exec_module_sp (target->GetExecutableModule()); 609 if (!old_exec_module_sp) 610 { 611 // We might not have a module if we attached to a raw pid... 612 if (new_exec_module_sp) 613 { 614 new_exec_module_sp->GetFileSpec().GetPath(new_path, PATH_MAX); 615 result.AppendMessageWithFormat("Executable module set to \"%s\".\n", new_path); 616 } 617 } 618 else if (old_exec_module_sp->GetFileSpec() != new_exec_module_sp->GetFileSpec()) 619 { 620 char old_path[PATH_MAX]; 621 622 old_exec_module_sp->GetFileSpec().GetPath (old_path, PATH_MAX); 623 new_exec_module_sp->GetFileSpec().GetPath (new_path, PATH_MAX); 624 625 result.AppendWarningWithFormat("Executable module changed from \"%s\" to \"%s\".\n", 626 old_path, new_path); 627 } 628 629 if (!old_arch_spec.IsValid()) 630 { 631 result.AppendMessageWithFormat ("Architecture set to: %s.\n", target->GetArchitecture().GetTriple().getTriple().c_str()); 632 } 633 else if (!old_arch_spec.IsExactMatch(target->GetArchitecture())) 634 { 635 result.AppendWarningWithFormat("Architecture changed from %s to %s.\n", 636 old_arch_spec.GetTriple().getTriple().c_str(), 637 target->GetArchitecture().GetTriple().getTriple().c_str()); 638 } 639 640 // This supports the use-case scenario of immediately continuing the process once attached. 641 if (m_options.attach_info.GetContinueOnceAttached()) 642 m_interpreter.HandleCommand("process continue", eLazyBoolNo, result); 643 } 644 return result.Succeeded(); 645 } 646 647 CommandOptions m_options; 648 }; 649 650 651 OptionDefinition 652 CommandObjectProcessAttach::CommandOptions::g_option_table[] = 653 { 654 { LLDB_OPT_SET_ALL, false, "continue",'c', OptionParser::eNoArgument, NULL, NULL, 0, eArgTypeNone, "Immediately continue the process once attached."}, 655 { LLDB_OPT_SET_ALL, false, "plugin", 'P', OptionParser::eRequiredArgument, NULL, NULL, 0, eArgTypePlugin, "Name of the process plugin you want to use."}, 656 { LLDB_OPT_SET_1, false, "pid", 'p', OptionParser::eRequiredArgument, NULL, NULL, 0, eArgTypePid, "The process ID of an existing process to attach to."}, 657 { LLDB_OPT_SET_2, false, "name", 'n', OptionParser::eRequiredArgument, NULL, NULL, 0, eArgTypeProcessName, "The name of the process to attach to."}, 658 { LLDB_OPT_SET_2, false, "include-existing", 'i', OptionParser::eNoArgument, NULL, NULL, 0, eArgTypeNone, "Include existing processes when doing attach -w."}, 659 { LLDB_OPT_SET_2, false, "waitfor", 'w', OptionParser::eNoArgument, NULL, NULL, 0, eArgTypeNone, "Wait for the process with <process-name> to launch."}, 660 { 0, false, NULL, 0, 0, NULL, NULL, 0, eArgTypeNone, NULL } 661 }; 662 663 //------------------------------------------------------------------------- 664 // CommandObjectProcessContinue 665 //------------------------------------------------------------------------- 666 #pragma mark CommandObjectProcessContinue 667 668 class CommandObjectProcessContinue : public CommandObjectParsed 669 { 670 public: 671 672 CommandObjectProcessContinue (CommandInterpreter &interpreter) : 673 CommandObjectParsed (interpreter, 674 "process continue", 675 "Continue execution of all threads in the current process.", 676 "process continue", 677 eFlagRequiresProcess | 678 eFlagTryTargetAPILock | 679 eFlagProcessMustBeLaunched | 680 eFlagProcessMustBePaused ), 681 m_options(interpreter) 682 { 683 } 684 685 686 ~CommandObjectProcessContinue () 687 { 688 } 689 690 protected: 691 692 class CommandOptions : public Options 693 { 694 public: 695 696 CommandOptions (CommandInterpreter &interpreter) : 697 Options(interpreter) 698 { 699 // Keep default values of all options in one place: OptionParsingStarting () 700 OptionParsingStarting (); 701 } 702 703 ~CommandOptions () 704 { 705 } 706 707 Error 708 SetOptionValue (uint32_t option_idx, const char *option_arg) 709 { 710 Error error; 711 const int short_option = m_getopt_table[option_idx].val; 712 bool success = false; 713 switch (short_option) 714 { 715 case 'i': 716 m_ignore = Args::StringToUInt32 (option_arg, 0, 0, &success); 717 if (!success) 718 error.SetErrorStringWithFormat ("invalid value for ignore option: \"%s\", should be a number.", option_arg); 719 break; 720 721 default: 722 error.SetErrorStringWithFormat("invalid short option character '%c'", short_option); 723 break; 724 } 725 return error; 726 } 727 728 void 729 OptionParsingStarting () 730 { 731 m_ignore = 0; 732 } 733 734 const OptionDefinition* 735 GetDefinitions () 736 { 737 return g_option_table; 738 } 739 740 // Options table: Required for subclasses of Options. 741 742 static OptionDefinition g_option_table[]; 743 744 uint32_t m_ignore; 745 }; 746 747 bool 748 DoExecute (Args& command, CommandReturnObject &result) 749 { 750 Process *process = m_exe_ctx.GetProcessPtr(); 751 bool synchronous_execution = m_interpreter.GetSynchronous (); 752 StateType state = process->GetState(); 753 if (state == eStateStopped) 754 { 755 if (command.GetArgumentCount() != 0) 756 { 757 result.AppendErrorWithFormat ("The '%s' command does not take any arguments.\n", m_cmd_name.c_str()); 758 result.SetStatus (eReturnStatusFailed); 759 return false; 760 } 761 762 if (m_options.m_ignore > 0) 763 { 764 ThreadSP sel_thread_sp(process->GetThreadList().GetSelectedThread()); 765 if (sel_thread_sp) 766 { 767 StopInfoSP stop_info_sp = sel_thread_sp->GetStopInfo(); 768 if (stop_info_sp && stop_info_sp->GetStopReason() == eStopReasonBreakpoint) 769 { 770 lldb::break_id_t bp_site_id = (lldb::break_id_t)stop_info_sp->GetValue(); 771 BreakpointSiteSP bp_site_sp(process->GetBreakpointSiteList().FindByID(bp_site_id)); 772 if (bp_site_sp) 773 { 774 const size_t num_owners = bp_site_sp->GetNumberOfOwners(); 775 for (size_t i = 0; i < num_owners; i++) 776 { 777 Breakpoint &bp_ref = bp_site_sp->GetOwnerAtIndex(i)->GetBreakpoint(); 778 if (!bp_ref.IsInternal()) 779 { 780 bp_ref.SetIgnoreCount(m_options.m_ignore); 781 } 782 } 783 } 784 } 785 } 786 } 787 788 { // Scope for thread list mutex: 789 Mutex::Locker locker (process->GetThreadList().GetMutex()); 790 const uint32_t num_threads = process->GetThreadList().GetSize(); 791 792 // Set the actions that the threads should each take when resuming 793 for (uint32_t idx=0; idx<num_threads; ++idx) 794 { 795 const bool override_suspend = false; 796 process->GetThreadList().GetThreadAtIndex(idx)->SetResumeState (eStateRunning, override_suspend); 797 } 798 } 799 800 StreamString stream; 801 Error error; 802 if (synchronous_execution) 803 error = process->ResumeSynchronous (&stream); 804 else 805 error = process->Resume (); 806 807 if (error.Success()) 808 { 809 // There is a race condition where this thread will return up the call stack to the main command 810 // handler and show an (lldb) prompt before HandlePrivateEvent (from PrivateStateThread) has 811 // a chance to call PushProcessIOHandler(). 812 process->SyncIOHandler(2000); 813 814 result.AppendMessageWithFormat ("Process %" PRIu64 " resuming\n", process->GetID()); 815 if (synchronous_execution) 816 { 817 // If any state changed events had anything to say, add that to the result 818 if (stream.GetData()) 819 result.AppendMessage(stream.GetData()); 820 821 result.SetDidChangeProcessState (true); 822 result.SetStatus (eReturnStatusSuccessFinishNoResult); 823 } 824 else 825 { 826 result.SetStatus (eReturnStatusSuccessContinuingNoResult); 827 } 828 } 829 else 830 { 831 result.AppendErrorWithFormat("Failed to resume process: %s.\n", error.AsCString()); 832 result.SetStatus (eReturnStatusFailed); 833 } 834 } 835 else 836 { 837 result.AppendErrorWithFormat ("Process cannot be continued from its current state (%s).\n", 838 StateAsCString(state)); 839 result.SetStatus (eReturnStatusFailed); 840 } 841 return result.Succeeded(); 842 } 843 844 Options * 845 GetOptions () 846 { 847 return &m_options; 848 } 849 850 CommandOptions m_options; 851 852 }; 853 854 OptionDefinition 855 CommandObjectProcessContinue::CommandOptions::g_option_table[] = 856 { 857 { LLDB_OPT_SET_ALL, false, "ignore-count",'i', OptionParser::eRequiredArgument, NULL, NULL, 0, eArgTypeUnsignedInteger, 858 "Ignore <N> crossings of the breakpoint (if it exists) for the currently selected thread."}, 859 { 0, false, NULL, 0, 0, NULL, NULL, 0, eArgTypeNone, NULL } 860 }; 861 862 //------------------------------------------------------------------------- 863 // CommandObjectProcessDetach 864 //------------------------------------------------------------------------- 865 #pragma mark CommandObjectProcessDetach 866 867 class CommandObjectProcessDetach : public CommandObjectParsed 868 { 869 public: 870 class CommandOptions : public Options 871 { 872 public: 873 874 CommandOptions (CommandInterpreter &interpreter) : 875 Options (interpreter) 876 { 877 OptionParsingStarting (); 878 } 879 880 ~CommandOptions () 881 { 882 } 883 884 Error 885 SetOptionValue (uint32_t option_idx, const char *option_arg) 886 { 887 Error error; 888 const int short_option = m_getopt_table[option_idx].val; 889 890 switch (short_option) 891 { 892 case 's': 893 bool tmp_result; 894 bool success; 895 tmp_result = Args::StringToBoolean(option_arg, false, &success); 896 if (!success) 897 error.SetErrorStringWithFormat("invalid boolean option: \"%s\"", option_arg); 898 else 899 { 900 if (tmp_result) 901 m_keep_stopped = eLazyBoolYes; 902 else 903 m_keep_stopped = eLazyBoolNo; 904 } 905 break; 906 default: 907 error.SetErrorStringWithFormat("invalid short option character '%c'", short_option); 908 break; 909 } 910 return error; 911 } 912 913 void 914 OptionParsingStarting () 915 { 916 m_keep_stopped = eLazyBoolCalculate; 917 } 918 919 const OptionDefinition* 920 GetDefinitions () 921 { 922 return g_option_table; 923 } 924 925 // Options table: Required for subclasses of Options. 926 927 static OptionDefinition g_option_table[]; 928 929 // Instance variables to hold the values for command options. 930 LazyBool m_keep_stopped; 931 }; 932 933 CommandObjectProcessDetach (CommandInterpreter &interpreter) : 934 CommandObjectParsed (interpreter, 935 "process detach", 936 "Detach from the current process being debugged.", 937 "process detach", 938 eFlagRequiresProcess | 939 eFlagTryTargetAPILock | 940 eFlagProcessMustBeLaunched), 941 m_options(interpreter) 942 { 943 } 944 945 ~CommandObjectProcessDetach () 946 { 947 } 948 949 Options * 950 GetOptions () 951 { 952 return &m_options; 953 } 954 955 956 protected: 957 bool 958 DoExecute (Args& command, CommandReturnObject &result) 959 { 960 Process *process = m_exe_ctx.GetProcessPtr(); 961 // FIXME: This will be a Command Option: 962 bool keep_stopped; 963 if (m_options.m_keep_stopped == eLazyBoolCalculate) 964 { 965 // Check the process default: 966 if (process->GetDetachKeepsStopped()) 967 keep_stopped = true; 968 else 969 keep_stopped = false; 970 } 971 else if (m_options.m_keep_stopped == eLazyBoolYes) 972 keep_stopped = true; 973 else 974 keep_stopped = false; 975 976 Error error (process->Detach(keep_stopped)); 977 if (error.Success()) 978 { 979 result.SetStatus (eReturnStatusSuccessFinishResult); 980 } 981 else 982 { 983 result.AppendErrorWithFormat ("Detach failed: %s\n", error.AsCString()); 984 result.SetStatus (eReturnStatusFailed); 985 return false; 986 } 987 return result.Succeeded(); 988 } 989 990 CommandOptions m_options; 991 }; 992 993 OptionDefinition 994 CommandObjectProcessDetach::CommandOptions::g_option_table[] = 995 { 996 { 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)." }, 997 { 0, false, NULL, 0, 0, NULL, NULL, 0, eArgTypeNone, NULL } 998 }; 999 1000 //------------------------------------------------------------------------- 1001 // CommandObjectProcessConnect 1002 //------------------------------------------------------------------------- 1003 #pragma mark CommandObjectProcessConnect 1004 1005 class CommandObjectProcessConnect : public CommandObjectParsed 1006 { 1007 public: 1008 1009 class CommandOptions : public Options 1010 { 1011 public: 1012 1013 CommandOptions (CommandInterpreter &interpreter) : 1014 Options(interpreter) 1015 { 1016 // Keep default values of all options in one place: OptionParsingStarting () 1017 OptionParsingStarting (); 1018 } 1019 1020 ~CommandOptions () 1021 { 1022 } 1023 1024 Error 1025 SetOptionValue (uint32_t option_idx, const char *option_arg) 1026 { 1027 Error error; 1028 const int short_option = m_getopt_table[option_idx].val; 1029 1030 switch (short_option) 1031 { 1032 case 'p': 1033 plugin_name.assign (option_arg); 1034 break; 1035 1036 default: 1037 error.SetErrorStringWithFormat("invalid short option character '%c'", short_option); 1038 break; 1039 } 1040 return error; 1041 } 1042 1043 void 1044 OptionParsingStarting () 1045 { 1046 plugin_name.clear(); 1047 } 1048 1049 const OptionDefinition* 1050 GetDefinitions () 1051 { 1052 return g_option_table; 1053 } 1054 1055 // Options table: Required for subclasses of Options. 1056 1057 static OptionDefinition g_option_table[]; 1058 1059 // Instance variables to hold the values for command options. 1060 1061 std::string plugin_name; 1062 }; 1063 1064 CommandObjectProcessConnect (CommandInterpreter &interpreter) : 1065 CommandObjectParsed (interpreter, 1066 "process connect", 1067 "Connect to a remote debug service.", 1068 "process connect <remote-url>", 1069 0), 1070 m_options (interpreter) 1071 { 1072 } 1073 1074 ~CommandObjectProcessConnect () 1075 { 1076 } 1077 1078 1079 Options * 1080 GetOptions () 1081 { 1082 return &m_options; 1083 } 1084 1085 protected: 1086 bool 1087 DoExecute (Args& command, 1088 CommandReturnObject &result) 1089 { 1090 1091 TargetSP target_sp (m_interpreter.GetDebugger().GetSelectedTarget()); 1092 Error error; 1093 Process *process = m_exe_ctx.GetProcessPtr(); 1094 if (process) 1095 { 1096 if (process->IsAlive()) 1097 { 1098 result.AppendErrorWithFormat ("Process %" PRIu64 " is currently being debugged, kill the process before connecting.\n", 1099 process->GetID()); 1100 result.SetStatus (eReturnStatusFailed); 1101 return false; 1102 } 1103 } 1104 1105 if (!target_sp) 1106 { 1107 // If there isn't a current target create one. 1108 1109 error = m_interpreter.GetDebugger().GetTargetList().CreateTarget (m_interpreter.GetDebugger(), 1110 NULL, 1111 NULL, 1112 false, 1113 NULL, // No platform options 1114 target_sp); 1115 if (!target_sp || error.Fail()) 1116 { 1117 result.AppendError(error.AsCString("Error creating target")); 1118 result.SetStatus (eReturnStatusFailed); 1119 return false; 1120 } 1121 m_interpreter.GetDebugger().GetTargetList().SetSelectedTarget(target_sp.get()); 1122 } 1123 1124 if (command.GetArgumentCount() == 1) 1125 { 1126 const char *plugin_name = NULL; 1127 if (!m_options.plugin_name.empty()) 1128 plugin_name = m_options.plugin_name.c_str(); 1129 1130 const char *remote_url = command.GetArgumentAtIndex(0); 1131 process = target_sp->CreateProcess (m_interpreter.GetDebugger().GetListener(), plugin_name, NULL).get(); 1132 1133 if (process) 1134 { 1135 error = process->ConnectRemote (process->GetTarget().GetDebugger().GetOutputFile().get(), remote_url); 1136 1137 if (error.Fail()) 1138 { 1139 result.AppendError(error.AsCString("Remote connect failed")); 1140 result.SetStatus (eReturnStatusFailed); 1141 target_sp->DeleteCurrentProcess(); 1142 return false; 1143 } 1144 } 1145 else 1146 { 1147 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", 1148 remote_url); 1149 result.SetStatus (eReturnStatusFailed); 1150 } 1151 } 1152 else 1153 { 1154 result.AppendErrorWithFormat ("'%s' takes exactly one argument:\nUsage: %s\n", 1155 m_cmd_name.c_str(), 1156 m_cmd_syntax.c_str()); 1157 result.SetStatus (eReturnStatusFailed); 1158 } 1159 return result.Succeeded(); 1160 } 1161 1162 CommandOptions m_options; 1163 }; 1164 1165 OptionDefinition 1166 CommandObjectProcessConnect::CommandOptions::g_option_table[] = 1167 { 1168 { LLDB_OPT_SET_ALL, false, "plugin", 'p', OptionParser::eRequiredArgument, NULL, NULL, 0, eArgTypePlugin, "Name of the process plugin you want to use."}, 1169 { 0, false, NULL, 0 , 0, NULL, NULL, 0, eArgTypeNone, NULL } 1170 }; 1171 1172 //------------------------------------------------------------------------- 1173 // CommandObjectProcessPlugin 1174 //------------------------------------------------------------------------- 1175 #pragma mark CommandObjectProcessPlugin 1176 1177 class CommandObjectProcessPlugin : public CommandObjectProxy 1178 { 1179 public: 1180 1181 CommandObjectProcessPlugin (CommandInterpreter &interpreter) : 1182 CommandObjectProxy (interpreter, 1183 "process plugin", 1184 "Send a custom command to the current process plug-in.", 1185 "process plugin <args>", 1186 0) 1187 { 1188 } 1189 1190 ~CommandObjectProcessPlugin () 1191 { 1192 } 1193 1194 virtual CommandObject * 1195 GetProxyCommandObject() 1196 { 1197 Process *process = m_interpreter.GetExecutionContext().GetProcessPtr(); 1198 if (process) 1199 return process->GetPluginCommandObject(); 1200 return NULL; 1201 } 1202 }; 1203 1204 1205 //------------------------------------------------------------------------- 1206 // CommandObjectProcessLoad 1207 //------------------------------------------------------------------------- 1208 #pragma mark CommandObjectProcessLoad 1209 1210 class CommandObjectProcessLoad : public CommandObjectParsed 1211 { 1212 public: 1213 1214 CommandObjectProcessLoad (CommandInterpreter &interpreter) : 1215 CommandObjectParsed (interpreter, 1216 "process load", 1217 "Load a shared library into the current process.", 1218 "process load <filename> [<filename> ...]", 1219 eFlagRequiresProcess | 1220 eFlagTryTargetAPILock | 1221 eFlagProcessMustBeLaunched | 1222 eFlagProcessMustBePaused ) 1223 { 1224 } 1225 1226 ~CommandObjectProcessLoad () 1227 { 1228 } 1229 1230 protected: 1231 bool 1232 DoExecute (Args& command, 1233 CommandReturnObject &result) 1234 { 1235 Process *process = m_exe_ctx.GetProcessPtr(); 1236 1237 const size_t argc = command.GetArgumentCount(); 1238 1239 for (uint32_t i=0; i<argc; ++i) 1240 { 1241 Error error; 1242 const char *image_path = command.GetArgumentAtIndex(i); 1243 FileSpec image_spec (image_path, false); 1244 process->GetTarget().GetPlatform()->ResolveRemotePath(image_spec, image_spec); 1245 uint32_t image_token = process->LoadImage(image_spec, error); 1246 if (image_token != LLDB_INVALID_IMAGE_TOKEN) 1247 { 1248 result.AppendMessageWithFormat ("Loading \"%s\"...ok\nImage %u loaded.\n", image_path, image_token); 1249 result.SetStatus (eReturnStatusSuccessFinishResult); 1250 } 1251 else 1252 { 1253 result.AppendErrorWithFormat ("failed to load '%s': %s", image_path, error.AsCString()); 1254 result.SetStatus (eReturnStatusFailed); 1255 } 1256 } 1257 return result.Succeeded(); 1258 } 1259 }; 1260 1261 1262 //------------------------------------------------------------------------- 1263 // CommandObjectProcessUnload 1264 //------------------------------------------------------------------------- 1265 #pragma mark CommandObjectProcessUnload 1266 1267 class CommandObjectProcessUnload : public CommandObjectParsed 1268 { 1269 public: 1270 1271 CommandObjectProcessUnload (CommandInterpreter &interpreter) : 1272 CommandObjectParsed (interpreter, 1273 "process unload", 1274 "Unload a shared library from the current process using the index returned by a previous call to \"process load\".", 1275 "process unload <index>", 1276 eFlagRequiresProcess | 1277 eFlagTryTargetAPILock | 1278 eFlagProcessMustBeLaunched | 1279 eFlagProcessMustBePaused ) 1280 { 1281 } 1282 1283 ~CommandObjectProcessUnload () 1284 { 1285 } 1286 1287 protected: 1288 bool 1289 DoExecute (Args& command, 1290 CommandReturnObject &result) 1291 { 1292 Process *process = m_exe_ctx.GetProcessPtr(); 1293 1294 const size_t argc = command.GetArgumentCount(); 1295 1296 for (uint32_t i=0; i<argc; ++i) 1297 { 1298 const char *image_token_cstr = command.GetArgumentAtIndex(i); 1299 uint32_t image_token = Args::StringToUInt32(image_token_cstr, LLDB_INVALID_IMAGE_TOKEN, 0); 1300 if (image_token == LLDB_INVALID_IMAGE_TOKEN) 1301 { 1302 result.AppendErrorWithFormat ("invalid image index argument '%s'", image_token_cstr); 1303 result.SetStatus (eReturnStatusFailed); 1304 break; 1305 } 1306 else 1307 { 1308 Error error (process->UnloadImage(image_token)); 1309 if (error.Success()) 1310 { 1311 result.AppendMessageWithFormat ("Unloading shared library with index %u...ok\n", image_token); 1312 result.SetStatus (eReturnStatusSuccessFinishResult); 1313 } 1314 else 1315 { 1316 result.AppendErrorWithFormat ("failed to unload image: %s", error.AsCString()); 1317 result.SetStatus (eReturnStatusFailed); 1318 break; 1319 } 1320 } 1321 } 1322 return result.Succeeded(); 1323 } 1324 }; 1325 1326 //------------------------------------------------------------------------- 1327 // CommandObjectProcessSignal 1328 //------------------------------------------------------------------------- 1329 #pragma mark CommandObjectProcessSignal 1330 1331 class CommandObjectProcessSignal : public CommandObjectParsed 1332 { 1333 public: 1334 1335 CommandObjectProcessSignal (CommandInterpreter &interpreter) : 1336 CommandObjectParsed (interpreter, 1337 "process signal", 1338 "Send a UNIX signal to the current process being debugged.", 1339 NULL, 1340 eFlagRequiresProcess | eFlagTryTargetAPILock) 1341 { 1342 CommandArgumentEntry arg; 1343 CommandArgumentData signal_arg; 1344 1345 // Define the first (and only) variant of this arg. 1346 signal_arg.arg_type = eArgTypeUnixSignal; 1347 signal_arg.arg_repetition = eArgRepeatPlain; 1348 1349 // There is only one variant this argument could be; put it into the argument entry. 1350 arg.push_back (signal_arg); 1351 1352 // Push the data for the first argument into the m_arguments vector. 1353 m_arguments.push_back (arg); 1354 } 1355 1356 ~CommandObjectProcessSignal () 1357 { 1358 } 1359 1360 protected: 1361 bool 1362 DoExecute (Args& command, 1363 CommandReturnObject &result) 1364 { 1365 Process *process = m_exe_ctx.GetProcessPtr(); 1366 1367 if (command.GetArgumentCount() == 1) 1368 { 1369 int signo = LLDB_INVALID_SIGNAL_NUMBER; 1370 1371 const char *signal_name = command.GetArgumentAtIndex(0); 1372 if (::isxdigit (signal_name[0])) 1373 signo = Args::StringToSInt32(signal_name, LLDB_INVALID_SIGNAL_NUMBER, 0); 1374 else 1375 signo = process->GetUnixSignals().GetSignalNumberFromName (signal_name); 1376 1377 if (signo == LLDB_INVALID_SIGNAL_NUMBER) 1378 { 1379 result.AppendErrorWithFormat ("Invalid signal argument '%s'.\n", command.GetArgumentAtIndex(0)); 1380 result.SetStatus (eReturnStatusFailed); 1381 } 1382 else 1383 { 1384 Error error (process->Signal (signo)); 1385 if (error.Success()) 1386 { 1387 result.SetStatus (eReturnStatusSuccessFinishResult); 1388 } 1389 else 1390 { 1391 result.AppendErrorWithFormat ("Failed to send signal %i: %s\n", signo, error.AsCString()); 1392 result.SetStatus (eReturnStatusFailed); 1393 } 1394 } 1395 } 1396 else 1397 { 1398 result.AppendErrorWithFormat("'%s' takes exactly one signal number argument:\nUsage: %s\n", m_cmd_name.c_str(), 1399 m_cmd_syntax.c_str()); 1400 result.SetStatus (eReturnStatusFailed); 1401 } 1402 return result.Succeeded(); 1403 } 1404 }; 1405 1406 1407 //------------------------------------------------------------------------- 1408 // CommandObjectProcessInterrupt 1409 //------------------------------------------------------------------------- 1410 #pragma mark CommandObjectProcessInterrupt 1411 1412 class CommandObjectProcessInterrupt : public CommandObjectParsed 1413 { 1414 public: 1415 1416 1417 CommandObjectProcessInterrupt (CommandInterpreter &interpreter) : 1418 CommandObjectParsed (interpreter, 1419 "process interrupt", 1420 "Interrupt the current process being debugged.", 1421 "process interrupt", 1422 eFlagRequiresProcess | 1423 eFlagTryTargetAPILock | 1424 eFlagProcessMustBeLaunched) 1425 { 1426 } 1427 1428 ~CommandObjectProcessInterrupt () 1429 { 1430 } 1431 1432 protected: 1433 bool 1434 DoExecute (Args& command, 1435 CommandReturnObject &result) 1436 { 1437 Process *process = m_exe_ctx.GetProcessPtr(); 1438 if (process == NULL) 1439 { 1440 result.AppendError ("no process to halt"); 1441 result.SetStatus (eReturnStatusFailed); 1442 return false; 1443 } 1444 1445 if (command.GetArgumentCount() == 0) 1446 { 1447 bool clear_thread_plans = true; 1448 Error error(process->Halt (clear_thread_plans)); 1449 if (error.Success()) 1450 { 1451 result.SetStatus (eReturnStatusSuccessFinishResult); 1452 } 1453 else 1454 { 1455 result.AppendErrorWithFormat ("Failed to halt process: %s\n", error.AsCString()); 1456 result.SetStatus (eReturnStatusFailed); 1457 } 1458 } 1459 else 1460 { 1461 result.AppendErrorWithFormat("'%s' takes no arguments:\nUsage: %s\n", 1462 m_cmd_name.c_str(), 1463 m_cmd_syntax.c_str()); 1464 result.SetStatus (eReturnStatusFailed); 1465 } 1466 return result.Succeeded(); 1467 } 1468 }; 1469 1470 //------------------------------------------------------------------------- 1471 // CommandObjectProcessKill 1472 //------------------------------------------------------------------------- 1473 #pragma mark CommandObjectProcessKill 1474 1475 class CommandObjectProcessKill : public CommandObjectParsed 1476 { 1477 public: 1478 1479 CommandObjectProcessKill (CommandInterpreter &interpreter) : 1480 CommandObjectParsed (interpreter, 1481 "process kill", 1482 "Terminate the current process being debugged.", 1483 "process kill", 1484 eFlagRequiresProcess | 1485 eFlagTryTargetAPILock | 1486 eFlagProcessMustBeLaunched) 1487 { 1488 } 1489 1490 ~CommandObjectProcessKill () 1491 { 1492 } 1493 1494 protected: 1495 bool 1496 DoExecute (Args& command, 1497 CommandReturnObject &result) 1498 { 1499 Process *process = m_exe_ctx.GetProcessPtr(); 1500 if (process == NULL) 1501 { 1502 result.AppendError ("no process to kill"); 1503 result.SetStatus (eReturnStatusFailed); 1504 return false; 1505 } 1506 1507 if (command.GetArgumentCount() == 0) 1508 { 1509 Error error (process->Destroy()); 1510 if (error.Success()) 1511 { 1512 result.SetStatus (eReturnStatusSuccessFinishResult); 1513 } 1514 else 1515 { 1516 result.AppendErrorWithFormat ("Failed to kill process: %s\n", error.AsCString()); 1517 result.SetStatus (eReturnStatusFailed); 1518 } 1519 } 1520 else 1521 { 1522 result.AppendErrorWithFormat("'%s' takes no arguments:\nUsage: %s\n", 1523 m_cmd_name.c_str(), 1524 m_cmd_syntax.c_str()); 1525 result.SetStatus (eReturnStatusFailed); 1526 } 1527 return result.Succeeded(); 1528 } 1529 }; 1530 1531 //------------------------------------------------------------------------- 1532 // CommandObjectProcessSaveCore 1533 //------------------------------------------------------------------------- 1534 #pragma mark CommandObjectProcessSaveCore 1535 1536 class CommandObjectProcessSaveCore : public CommandObjectParsed 1537 { 1538 public: 1539 1540 CommandObjectProcessSaveCore (CommandInterpreter &interpreter) : 1541 CommandObjectParsed (interpreter, 1542 "process save-core", 1543 "Save the current process as a core file using an appropriate file type.", 1544 "process save-core FILE", 1545 eFlagRequiresProcess | 1546 eFlagTryTargetAPILock | 1547 eFlagProcessMustBeLaunched) 1548 { 1549 } 1550 1551 ~CommandObjectProcessSaveCore () 1552 { 1553 } 1554 1555 protected: 1556 bool 1557 DoExecute (Args& command, 1558 CommandReturnObject &result) 1559 { 1560 ProcessSP process_sp = m_exe_ctx.GetProcessSP(); 1561 if (process_sp) 1562 { 1563 if (command.GetArgumentCount() == 1) 1564 { 1565 FileSpec output_file(command.GetArgumentAtIndex(0), false); 1566 Error error = PluginManager::SaveCore(process_sp, output_file); 1567 if (error.Success()) 1568 { 1569 result.SetStatus (eReturnStatusSuccessFinishResult); 1570 } 1571 else 1572 { 1573 result.AppendErrorWithFormat ("Failed to save core file for process: %s\n", error.AsCString()); 1574 result.SetStatus (eReturnStatusFailed); 1575 } 1576 } 1577 else 1578 { 1579 result.AppendErrorWithFormat ("'%s' takes one arguments:\nUsage: %s\n", 1580 m_cmd_name.c_str(), 1581 m_cmd_syntax.c_str()); 1582 result.SetStatus (eReturnStatusFailed); 1583 } 1584 } 1585 else 1586 { 1587 result.AppendError ("invalid process"); 1588 result.SetStatus (eReturnStatusFailed); 1589 return false; 1590 } 1591 1592 return result.Succeeded(); 1593 } 1594 }; 1595 1596 //------------------------------------------------------------------------- 1597 // CommandObjectProcessStatus 1598 //------------------------------------------------------------------------- 1599 #pragma mark CommandObjectProcessStatus 1600 1601 class CommandObjectProcessStatus : public CommandObjectParsed 1602 { 1603 public: 1604 CommandObjectProcessStatus (CommandInterpreter &interpreter) : 1605 CommandObjectParsed (interpreter, 1606 "process status", 1607 "Show the current status and location of executing process.", 1608 "process status", 1609 eFlagRequiresProcess | eFlagTryTargetAPILock) 1610 { 1611 } 1612 1613 ~CommandObjectProcessStatus() 1614 { 1615 } 1616 1617 1618 bool 1619 DoExecute (Args& command, CommandReturnObject &result) 1620 { 1621 Stream &strm = result.GetOutputStream(); 1622 result.SetStatus (eReturnStatusSuccessFinishNoResult); 1623 // No need to check "process" for validity as eFlagRequiresProcess ensures it is valid 1624 Process *process = m_exe_ctx.GetProcessPtr(); 1625 const bool only_threads_with_stop_reason = true; 1626 const uint32_t start_frame = 0; 1627 const uint32_t num_frames = 1; 1628 const uint32_t num_frames_with_source = 1; 1629 process->GetStatus(strm); 1630 process->GetThreadStatus (strm, 1631 only_threads_with_stop_reason, 1632 start_frame, 1633 num_frames, 1634 num_frames_with_source); 1635 return result.Succeeded(); 1636 } 1637 }; 1638 1639 //------------------------------------------------------------------------- 1640 // CommandObjectProcessHandle 1641 //------------------------------------------------------------------------- 1642 #pragma mark CommandObjectProcessHandle 1643 1644 class CommandObjectProcessHandle : public CommandObjectParsed 1645 { 1646 public: 1647 1648 class CommandOptions : public Options 1649 { 1650 public: 1651 1652 CommandOptions (CommandInterpreter &interpreter) : 1653 Options (interpreter) 1654 { 1655 OptionParsingStarting (); 1656 } 1657 1658 ~CommandOptions () 1659 { 1660 } 1661 1662 Error 1663 SetOptionValue (uint32_t option_idx, const char *option_arg) 1664 { 1665 Error error; 1666 const int short_option = m_getopt_table[option_idx].val; 1667 1668 switch (short_option) 1669 { 1670 case 's': 1671 stop = option_arg; 1672 break; 1673 case 'n': 1674 notify = option_arg; 1675 break; 1676 case 'p': 1677 pass = option_arg; 1678 break; 1679 default: 1680 error.SetErrorStringWithFormat("invalid short option character '%c'", short_option); 1681 break; 1682 } 1683 return error; 1684 } 1685 1686 void 1687 OptionParsingStarting () 1688 { 1689 stop.clear(); 1690 notify.clear(); 1691 pass.clear(); 1692 } 1693 1694 const OptionDefinition* 1695 GetDefinitions () 1696 { 1697 return g_option_table; 1698 } 1699 1700 // Options table: Required for subclasses of Options. 1701 1702 static OptionDefinition g_option_table[]; 1703 1704 // Instance variables to hold the values for command options. 1705 1706 std::string stop; 1707 std::string notify; 1708 std::string pass; 1709 }; 1710 1711 1712 CommandObjectProcessHandle (CommandInterpreter &interpreter) : 1713 CommandObjectParsed (interpreter, 1714 "process handle", 1715 "Show or update what the process and debugger should do with various signals received from the OS.", 1716 NULL), 1717 m_options (interpreter) 1718 { 1719 SetHelpLong ("If no signals are specified, update them all. If no update option is specified, list the current values.\n"); 1720 CommandArgumentEntry arg; 1721 CommandArgumentData signal_arg; 1722 1723 signal_arg.arg_type = eArgTypeUnixSignal; 1724 signal_arg.arg_repetition = eArgRepeatStar; 1725 1726 arg.push_back (signal_arg); 1727 1728 m_arguments.push_back (arg); 1729 } 1730 1731 ~CommandObjectProcessHandle () 1732 { 1733 } 1734 1735 Options * 1736 GetOptions () 1737 { 1738 return &m_options; 1739 } 1740 1741 bool 1742 VerifyCommandOptionValue (const std::string &option, int &real_value) 1743 { 1744 bool okay = true; 1745 1746 bool success = false; 1747 bool tmp_value = Args::StringToBoolean (option.c_str(), false, &success); 1748 1749 if (success && tmp_value) 1750 real_value = 1; 1751 else if (success && !tmp_value) 1752 real_value = 0; 1753 else 1754 { 1755 // If the value isn't 'true' or 'false', it had better be 0 or 1. 1756 real_value = Args::StringToUInt32 (option.c_str(), 3); 1757 if (real_value != 0 && real_value != 1) 1758 okay = false; 1759 } 1760 1761 return okay; 1762 } 1763 1764 void 1765 PrintSignalHeader (Stream &str) 1766 { 1767 str.Printf ("NAME PASS STOP NOTIFY\n"); 1768 str.Printf ("========== ===== ===== ======\n"); 1769 } 1770 1771 void 1772 PrintSignal (Stream &str, int32_t signo, const char *sig_name, UnixSignals &signals) 1773 { 1774 bool stop; 1775 bool suppress; 1776 bool notify; 1777 1778 str.Printf ("%-10s ", sig_name); 1779 if (signals.GetSignalInfo (signo, suppress, stop, notify)) 1780 { 1781 bool pass = !suppress; 1782 str.Printf ("%s %s %s", 1783 (pass ? "true " : "false"), 1784 (stop ? "true " : "false"), 1785 (notify ? "true " : "false")); 1786 } 1787 str.Printf ("\n"); 1788 } 1789 1790 void 1791 PrintSignalInformation (Stream &str, Args &signal_args, int num_valid_signals, UnixSignals &signals) 1792 { 1793 PrintSignalHeader (str); 1794 1795 if (num_valid_signals > 0) 1796 { 1797 size_t num_args = signal_args.GetArgumentCount(); 1798 for (size_t i = 0; i < num_args; ++i) 1799 { 1800 int32_t signo = signals.GetSignalNumberFromName (signal_args.GetArgumentAtIndex (i)); 1801 if (signo != LLDB_INVALID_SIGNAL_NUMBER) 1802 PrintSignal (str, signo, signal_args.GetArgumentAtIndex (i), signals); 1803 } 1804 } 1805 else // Print info for ALL signals 1806 { 1807 int32_t signo = signals.GetFirstSignalNumber(); 1808 while (signo != LLDB_INVALID_SIGNAL_NUMBER) 1809 { 1810 PrintSignal (str, signo, signals.GetSignalAsCString (signo), signals); 1811 signo = signals.GetNextSignalNumber (signo); 1812 } 1813 } 1814 } 1815 1816 protected: 1817 bool 1818 DoExecute (Args &signal_args, CommandReturnObject &result) 1819 { 1820 TargetSP target_sp = m_interpreter.GetDebugger().GetSelectedTarget(); 1821 1822 if (!target_sp) 1823 { 1824 result.AppendError ("No current target;" 1825 " cannot handle signals until you have a valid target and process.\n"); 1826 result.SetStatus (eReturnStatusFailed); 1827 return false; 1828 } 1829 1830 ProcessSP process_sp = target_sp->GetProcessSP(); 1831 1832 if (!process_sp) 1833 { 1834 result.AppendError ("No current process; cannot handle signals until you have a valid process.\n"); 1835 result.SetStatus (eReturnStatusFailed); 1836 return false; 1837 } 1838 1839 int stop_action = -1; // -1 means leave the current setting alone 1840 int pass_action = -1; // -1 means leave the current setting alone 1841 int notify_action = -1; // -1 means leave the current setting alone 1842 1843 if (! m_options.stop.empty() 1844 && ! VerifyCommandOptionValue (m_options.stop, stop_action)) 1845 { 1846 result.AppendError ("Invalid argument for command option --stop; must be true or false.\n"); 1847 result.SetStatus (eReturnStatusFailed); 1848 return false; 1849 } 1850 1851 if (! m_options.notify.empty() 1852 && ! VerifyCommandOptionValue (m_options.notify, notify_action)) 1853 { 1854 result.AppendError ("Invalid argument for command option --notify; must be true or false.\n"); 1855 result.SetStatus (eReturnStatusFailed); 1856 return false; 1857 } 1858 1859 if (! m_options.pass.empty() 1860 && ! VerifyCommandOptionValue (m_options.pass, pass_action)) 1861 { 1862 result.AppendError ("Invalid argument for command option --pass; must be true or false.\n"); 1863 result.SetStatus (eReturnStatusFailed); 1864 return false; 1865 } 1866 1867 size_t num_args = signal_args.GetArgumentCount(); 1868 UnixSignals &signals = process_sp->GetUnixSignals(); 1869 int num_signals_set = 0; 1870 1871 if (num_args > 0) 1872 { 1873 for (size_t i = 0; i < num_args; ++i) 1874 { 1875 int32_t signo = signals.GetSignalNumberFromName (signal_args.GetArgumentAtIndex (i)); 1876 if (signo != LLDB_INVALID_SIGNAL_NUMBER) 1877 { 1878 // Casting the actions as bools here should be okay, because VerifyCommandOptionValue guarantees 1879 // the value is either 0 or 1. 1880 if (stop_action != -1) 1881 signals.SetShouldStop (signo, (bool) stop_action); 1882 if (pass_action != -1) 1883 { 1884 bool suppress = ! ((bool) pass_action); 1885 signals.SetShouldSuppress (signo, suppress); 1886 } 1887 if (notify_action != -1) 1888 signals.SetShouldNotify (signo, (bool) notify_action); 1889 ++num_signals_set; 1890 } 1891 else 1892 { 1893 result.AppendErrorWithFormat ("Invalid signal name '%s'\n", signal_args.GetArgumentAtIndex (i)); 1894 } 1895 } 1896 } 1897 else 1898 { 1899 // No signal specified, if any command options were specified, update ALL signals. 1900 if ((notify_action != -1) || (stop_action != -1) || (pass_action != -1)) 1901 { 1902 if (m_interpreter.Confirm ("Do you really want to update all the signals?", false)) 1903 { 1904 int32_t signo = signals.GetFirstSignalNumber(); 1905 while (signo != LLDB_INVALID_SIGNAL_NUMBER) 1906 { 1907 if (notify_action != -1) 1908 signals.SetShouldNotify (signo, (bool) notify_action); 1909 if (stop_action != -1) 1910 signals.SetShouldStop (signo, (bool) stop_action); 1911 if (pass_action != -1) 1912 { 1913 bool suppress = ! ((bool) pass_action); 1914 signals.SetShouldSuppress (signo, suppress); 1915 } 1916 signo = signals.GetNextSignalNumber (signo); 1917 } 1918 } 1919 } 1920 } 1921 1922 PrintSignalInformation (result.GetOutputStream(), signal_args, num_signals_set, signals); 1923 1924 if (num_signals_set > 0) 1925 result.SetStatus (eReturnStatusSuccessFinishNoResult); 1926 else 1927 result.SetStatus (eReturnStatusFailed); 1928 1929 return result.Succeeded(); 1930 } 1931 1932 CommandOptions m_options; 1933 }; 1934 1935 OptionDefinition 1936 CommandObjectProcessHandle::CommandOptions::g_option_table[] = 1937 { 1938 { 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." }, 1939 { 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." }, 1940 { LLDB_OPT_SET_1, false, "pass", 'p', OptionParser::eRequiredArgument, NULL, NULL, 0, eArgTypeBoolean, "Whether or not the signal should be passed to the process." }, 1941 { 0, false, NULL, 0, 0, NULL, NULL, 0, eArgTypeNone, NULL } 1942 }; 1943 1944 //------------------------------------------------------------------------- 1945 // CommandObjectMultiwordProcess 1946 //------------------------------------------------------------------------- 1947 1948 CommandObjectMultiwordProcess::CommandObjectMultiwordProcess (CommandInterpreter &interpreter) : 1949 CommandObjectMultiword (interpreter, 1950 "process", 1951 "A set of commands for operating on a process.", 1952 "process <subcommand> [<subcommand-options>]") 1953 { 1954 LoadSubCommand ("attach", CommandObjectSP (new CommandObjectProcessAttach (interpreter))); 1955 LoadSubCommand ("launch", CommandObjectSP (new CommandObjectProcessLaunch (interpreter))); 1956 LoadSubCommand ("continue", CommandObjectSP (new CommandObjectProcessContinue (interpreter))); 1957 LoadSubCommand ("connect", CommandObjectSP (new CommandObjectProcessConnect (interpreter))); 1958 LoadSubCommand ("detach", CommandObjectSP (new CommandObjectProcessDetach (interpreter))); 1959 LoadSubCommand ("load", CommandObjectSP (new CommandObjectProcessLoad (interpreter))); 1960 LoadSubCommand ("unload", CommandObjectSP (new CommandObjectProcessUnload (interpreter))); 1961 LoadSubCommand ("signal", CommandObjectSP (new CommandObjectProcessSignal (interpreter))); 1962 LoadSubCommand ("handle", CommandObjectSP (new CommandObjectProcessHandle (interpreter))); 1963 LoadSubCommand ("status", CommandObjectSP (new CommandObjectProcessStatus (interpreter))); 1964 LoadSubCommand ("interrupt", CommandObjectSP (new CommandObjectProcessInterrupt (interpreter))); 1965 LoadSubCommand ("kill", CommandObjectSP (new CommandObjectProcessKill (interpreter))); 1966 LoadSubCommand ("plugin", CommandObjectSP (new CommandObjectProcessPlugin (interpreter))); 1967 LoadSubCommand ("save-core", CommandObjectSP (new CommandObjectProcessSaveCore (interpreter))); 1968 } 1969 1970 CommandObjectMultiwordProcess::~CommandObjectMultiwordProcess () 1971 { 1972 } 1973 1974