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