1 //===-- CommandObjectProcess.cpp --------------------------------*- C++ -*-===// 2 // 3 // The LLVM Compiler Infrastructure 4 // 5 // This file is distributed under the University of Illinois Open Source 6 // License. See LICENSE.TXT for details. 7 // 8 //===----------------------------------------------------------------------===// 9 10 #include "lldb/lldb-python.h" 11 12 #include "CommandObjectProcess.h" 13 14 // C Includes 15 // C++ Includes 16 // Other libraries and framework includes 17 // Project includes 18 #include "lldb/Breakpoint/Breakpoint.h" 19 #include "lldb/Breakpoint/BreakpointLocation.h" 20 #include "lldb/Breakpoint/BreakpointSite.h" 21 #include "lldb/Core/State.h" 22 #include "lldb/Core/Module.h" 23 #include "lldb/Core/PluginManager.h" 24 #include "lldb/Host/Host.h" 25 #include "lldb/Host/StringConvert.h" 26 #include "lldb/Interpreter/Args.h" 27 #include "lldb/Interpreter/Options.h" 28 #include "lldb/Interpreter/CommandInterpreter.h" 29 #include "lldb/Interpreter/CommandReturnObject.h" 30 #include "lldb/Target/Platform.h" 31 #include "lldb/Target/Process.h" 32 #include "lldb/Target/StopInfo.h" 33 #include "lldb/Target/Target.h" 34 #include "lldb/Target/Thread.h" 35 36 using namespace lldb; 37 using namespace lldb_private; 38 39 class CommandObjectProcessLaunchOrAttach : public CommandObjectParsed 40 { 41 public: 42 CommandObjectProcessLaunchOrAttach (CommandInterpreter &interpreter, 43 const char *name, 44 const char *help, 45 const char *syntax, 46 uint32_t flags, 47 const char *new_process_action) : 48 CommandObjectParsed (interpreter, name, help, syntax, flags), 49 m_new_process_action (new_process_action) {} 50 51 virtual ~CommandObjectProcessLaunchOrAttach () {} 52 protected: 53 bool 54 StopProcessIfNecessary (Process *process, StateType &state, CommandReturnObject &result) 55 { 56 state = eStateInvalid; 57 if (process) 58 { 59 state = process->GetState(); 60 61 if (process->IsAlive() && state != eStateConnected) 62 { 63 char message[1024]; 64 if (process->GetState() == eStateAttaching) 65 ::snprintf (message, sizeof(message), "There is a pending attach, abort it and %s?", m_new_process_action.c_str()); 66 else if (process->GetShouldDetach()) 67 ::snprintf (message, sizeof(message), "There is a running process, detach from it and %s?", m_new_process_action.c_str()); 68 else 69 ::snprintf (message, sizeof(message), "There is a running process, kill it and %s?", m_new_process_action.c_str()); 70 71 if (!m_interpreter.Confirm (message, true)) 72 { 73 result.SetStatus (eReturnStatusFailed); 74 return false; 75 } 76 else 77 { 78 if (process->GetShouldDetach()) 79 { 80 bool keep_stopped = false; 81 Error detach_error (process->Detach(keep_stopped)); 82 if (detach_error.Success()) 83 { 84 result.SetStatus (eReturnStatusSuccessFinishResult); 85 process = NULL; 86 } 87 else 88 { 89 result.AppendErrorWithFormat ("Failed to detach from process: %s\n", detach_error.AsCString()); 90 result.SetStatus (eReturnStatusFailed); 91 } 92 } 93 else 94 { 95 Error destroy_error (process->Destroy()); 96 if (destroy_error.Success()) 97 { 98 result.SetStatus (eReturnStatusSuccessFinishResult); 99 process = NULL; 100 } 101 else 102 { 103 result.AppendErrorWithFormat ("Failed to kill process: %s\n", destroy_error.AsCString()); 104 result.SetStatus (eReturnStatusFailed); 105 } 106 } 107 } 108 } 109 } 110 return result.Succeeded(); 111 } 112 std::string m_new_process_action; 113 }; 114 //------------------------------------------------------------------------- 115 // CommandObjectProcessLaunch 116 //------------------------------------------------------------------------- 117 #pragma mark CommandObjectProcessLaunch 118 class CommandObjectProcessLaunch : public CommandObjectProcessLaunchOrAttach 119 { 120 public: 121 122 CommandObjectProcessLaunch (CommandInterpreter &interpreter) : 123 CommandObjectProcessLaunchOrAttach (interpreter, 124 "process launch", 125 "Launch the executable in the debugger.", 126 NULL, 127 eFlagRequiresTarget, 128 "restart"), 129 m_options (interpreter) 130 { 131 CommandArgumentEntry arg; 132 CommandArgumentData run_args_arg; 133 134 // Define the first (and only) variant of this arg. 135 run_args_arg.arg_type = eArgTypeRunArgs; 136 run_args_arg.arg_repetition = eArgRepeatOptional; 137 138 // There is only one variant this argument could be; put it into the argument entry. 139 arg.push_back (run_args_arg); 140 141 // Push the data for the first argument into the m_arguments vector. 142 m_arguments.push_back (arg); 143 } 144 145 146 ~CommandObjectProcessLaunch () 147 { 148 } 149 150 virtual int 151 HandleArgumentCompletion (Args &input, 152 int &cursor_index, 153 int &cursor_char_position, 154 OptionElementVector &opt_element_vector, 155 int match_start_point, 156 int max_return_elements, 157 bool &word_complete, 158 StringList &matches) 159 { 160 std::string completion_str (input.GetArgumentAtIndex(cursor_index)); 161 completion_str.erase (cursor_char_position); 162 163 CommandCompletions::InvokeCommonCompletionCallbacks (m_interpreter, 164 CommandCompletions::eDiskFileCompletion, 165 completion_str.c_str(), 166 match_start_point, 167 max_return_elements, 168 NULL, 169 word_complete, 170 matches); 171 return matches.GetSize(); 172 } 173 174 Options * 175 GetOptions () 176 { 177 return &m_options; 178 } 179 180 virtual const char *GetRepeatCommand (Args ¤t_command_args, uint32_t index) 181 { 182 // No repeat for "process launch"... 183 return ""; 184 } 185 186 protected: 187 bool 188 DoExecute (Args& launch_args, CommandReturnObject &result) 189 { 190 Debugger &debugger = m_interpreter.GetDebugger(); 191 Target *target = debugger.GetSelectedTarget().get(); 192 // If our listener is NULL, users aren't allows to launch 193 ModuleSP exe_module_sp = target->GetExecutableModule(); 194 195 if (exe_module_sp == NULL) 196 { 197 result.AppendError ("no file in target, create a debug target using the 'target create' command"); 198 result.SetStatus (eReturnStatusFailed); 199 return false; 200 } 201 202 StateType state = eStateInvalid; 203 204 if (!StopProcessIfNecessary(m_exe_ctx.GetProcessPtr(), state, result)) 205 return false; 206 207 const char *target_settings_argv0 = target->GetArg0(); 208 209 // Determine whether we will disable ASLR or leave it in the default state (i.e. enabled if the platform supports it). 210 // First check if the process launch options explicitly turn on/off disabling ASLR. If so, use that setting; 211 // otherwise, use the 'settings target.disable-aslr' setting. 212 bool disable_aslr = false; 213 if (m_options.disable_aslr != eLazyBoolCalculate) 214 { 215 // The user specified an explicit setting on the process launch line. Use it. 216 disable_aslr = (m_options.disable_aslr == eLazyBoolYes); 217 } 218 else 219 { 220 // The user did not explicitly specify whether to disable ASLR. Fall back to the target.disable-aslr setting. 221 disable_aslr = target->GetDisableASLR (); 222 } 223 224 if (disable_aslr) 225 m_options.launch_info.GetFlags().Set (eLaunchFlagDisableASLR); 226 else 227 m_options.launch_info.GetFlags().Clear (eLaunchFlagDisableASLR); 228 229 if (target->GetDetachOnError()) 230 m_options.launch_info.GetFlags().Set (eLaunchFlagDetachOnError); 231 232 if (target->GetDisableSTDIO()) 233 m_options.launch_info.GetFlags().Set (eLaunchFlagDisableSTDIO); 234 235 Args environment; 236 target->GetEnvironmentAsArgs (environment); 237 if (environment.GetArgumentCount() > 0) 238 m_options.launch_info.GetEnvironmentEntries ().AppendArguments (environment); 239 240 if (target_settings_argv0) 241 { 242 m_options.launch_info.GetArguments().AppendArgument (target_settings_argv0); 243 m_options.launch_info.SetExecutableFile(exe_module_sp->GetPlatformFileSpec(), false); 244 } 245 else 246 { 247 m_options.launch_info.SetExecutableFile(exe_module_sp->GetPlatformFileSpec(), true); 248 } 249 250 if (launch_args.GetArgumentCount() == 0) 251 { 252 Args target_setting_args; 253 if (target->GetRunArguments(target_setting_args)) 254 m_options.launch_info.GetArguments().AppendArguments (target_setting_args); 255 } 256 else 257 { 258 m_options.launch_info.GetArguments().AppendArguments (launch_args); 259 // Save the arguments for subsequent runs in the current target. 260 target->SetRunArguments (launch_args); 261 } 262 263 StreamString stream; 264 Error error = target->Launch(m_options.launch_info, &stream); 265 266 if (error.Success()) 267 { 268 const char *archname = exe_module_sp->GetArchitecture().GetArchitectureName(); 269 ProcessSP process_sp (target->GetProcessSP()); 270 if (process_sp) 271 { 272 const char *data = stream.GetData(); 273 if (data && strlen(data) > 0) 274 result.AppendMessage(stream.GetData()); 275 result.AppendMessageWithFormat ("Process %" PRIu64 " launched: '%s' (%s)\n", process_sp->GetID(), exe_module_sp->GetFileSpec().GetPath().c_str(), archname); 276 result.SetStatus (eReturnStatusSuccessFinishResult); 277 result.SetDidChangeProcessState (true); 278 } 279 else 280 { 281 result.AppendError("no error returned from Target::Launch, and target has no process"); 282 result.SetStatus (eReturnStatusFailed); 283 } 284 } 285 else 286 { 287 result.AppendError(error.AsCString()); 288 result.SetStatus (eReturnStatusFailed); 289 } 290 return result.Succeeded(); 291 } 292 293 protected: 294 ProcessLaunchCommandOptions m_options; 295 }; 296 297 298 //#define SET1 LLDB_OPT_SET_1 299 //#define SET2 LLDB_OPT_SET_2 300 //#define SET3 LLDB_OPT_SET_3 301 // 302 //OptionDefinition 303 //CommandObjectProcessLaunch::CommandOptions::g_option_table[] = 304 //{ 305 //{ 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."}, 306 //{ SET1 , false, "stdin", 'i', OptionParser::eRequiredArgument, NULL, 0, eArgTypeDirectoryName, "Redirect stdin for the process to <path>."}, 307 //{ SET1 , false, "stdout", 'o', OptionParser::eRequiredArgument, NULL, 0, eArgTypeDirectoryName, "Redirect stdout for the process to <path>."}, 308 //{ SET1 , false, "stderr", 'e', OptionParser::eRequiredArgument, NULL, 0, eArgTypeDirectoryName, "Redirect stderr for the process to <path>."}, 309 //{ SET1 | SET2 | SET3, false, "plugin", 'p', OptionParser::eRequiredArgument, NULL, 0, eArgTypePlugin, "Name of the process plugin you want to use."}, 310 //{ 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."}, 311 //{ SET3, false, "no-stdio", 'n', OptionParser::eNoArgument, NULL, 0, eArgTypeNone, "Do not set up for terminal I/O to go to running process."}, 312 //{ SET1 | SET2 | SET3, false, "working-dir", 'w', OptionParser::eRequiredArgument, NULL, 0, eArgTypeDirectoryName, "Set the current working directory to <path> when running the inferior."}, 313 //{ 0, false, NULL, 0, 0, NULL, 0, eArgTypeNone, NULL } 314 //}; 315 // 316 //#undef SET1 317 //#undef SET2 318 //#undef SET3 319 320 //------------------------------------------------------------------------- 321 // CommandObjectProcessAttach 322 //------------------------------------------------------------------------- 323 #pragma mark CommandObjectProcessAttach 324 class CommandObjectProcessAttach : public CommandObjectProcessLaunchOrAttach 325 { 326 public: 327 328 class CommandOptions : public Options 329 { 330 public: 331 332 CommandOptions (CommandInterpreter &interpreter) : 333 Options(interpreter) 334 { 335 // Keep default values of all options in one place: OptionParsingStarting () 336 OptionParsingStarting (); 337 } 338 339 ~CommandOptions () 340 { 341 } 342 343 Error 344 SetOptionValue (uint32_t option_idx, const char *option_arg) 345 { 346 Error error; 347 const int short_option = m_getopt_table[option_idx].val; 348 bool success = false; 349 switch (short_option) 350 { 351 case 'c': 352 attach_info.SetContinueOnceAttached(true); 353 break; 354 355 case 'p': 356 { 357 lldb::pid_t pid = StringConvert::ToUInt32 (option_arg, LLDB_INVALID_PROCESS_ID, 0, &success); 358 if (!success || pid == LLDB_INVALID_PROCESS_ID) 359 { 360 error.SetErrorStringWithFormat("invalid process ID '%s'", option_arg); 361 } 362 else 363 { 364 attach_info.SetProcessID (pid); 365 } 366 } 367 break; 368 369 case 'P': 370 attach_info.SetProcessPluginName (option_arg); 371 break; 372 373 case 'n': 374 attach_info.GetExecutableFile().SetFile(option_arg, false); 375 break; 376 377 case 'w': 378 attach_info.SetWaitForLaunch(true); 379 break; 380 381 case 'i': 382 attach_info.SetIgnoreExisting(false); 383 break; 384 385 default: 386 error.SetErrorStringWithFormat("invalid short option character '%c'", short_option); 387 break; 388 } 389 return error; 390 } 391 392 void 393 OptionParsingStarting () 394 { 395 attach_info.Clear(); 396 } 397 398 const OptionDefinition* 399 GetDefinitions () 400 { 401 return g_option_table; 402 } 403 404 virtual bool 405 HandleOptionArgumentCompletion (Args &input, 406 int cursor_index, 407 int char_pos, 408 OptionElementVector &opt_element_vector, 409 int opt_element_index, 410 int match_start_point, 411 int max_return_elements, 412 bool &word_complete, 413 StringList &matches) 414 { 415 int opt_arg_pos = opt_element_vector[opt_element_index].opt_arg_pos; 416 int opt_defs_index = opt_element_vector[opt_element_index].opt_defs_index; 417 418 // We are only completing the name option for now... 419 420 const OptionDefinition *opt_defs = GetDefinitions(); 421 if (opt_defs[opt_defs_index].short_option == 'n') 422 { 423 // Are we in the name? 424 425 // Look to see if there is a -P argument provided, and if so use that plugin, otherwise 426 // use the default plugin. 427 428 const char *partial_name = NULL; 429 partial_name = input.GetArgumentAtIndex(opt_arg_pos); 430 431 PlatformSP platform_sp (m_interpreter.GetPlatform (true)); 432 if (platform_sp) 433 { 434 ProcessInstanceInfoList process_infos; 435 ProcessInstanceInfoMatch match_info; 436 if (partial_name) 437 { 438 match_info.GetProcessInfo().GetExecutableFile().SetFile(partial_name, false); 439 match_info.SetNameMatchType(eNameMatchStartsWith); 440 } 441 platform_sp->FindProcesses (match_info, process_infos); 442 const size_t num_matches = process_infos.GetSize(); 443 if (num_matches > 0) 444 { 445 for (size_t i=0; i<num_matches; ++i) 446 { 447 matches.AppendString (process_infos.GetProcessNameAtIndex(i), 448 process_infos.GetProcessNameLengthAtIndex(i)); 449 } 450 } 451 } 452 } 453 454 return false; 455 } 456 457 // Options table: Required for subclasses of Options. 458 459 static OptionDefinition g_option_table[]; 460 461 // Instance variables to hold the values for command options. 462 463 ProcessAttachInfo attach_info; 464 }; 465 466 CommandObjectProcessAttach (CommandInterpreter &interpreter) : 467 CommandObjectProcessLaunchOrAttach (interpreter, 468 "process attach", 469 "Attach to a process.", 470 "process attach <cmd-options>", 471 0, 472 "attach"), 473 m_options (interpreter) 474 { 475 } 476 477 ~CommandObjectProcessAttach () 478 { 479 } 480 481 Options * 482 GetOptions () 483 { 484 return &m_options; 485 } 486 487 protected: 488 bool 489 DoExecute (Args& command, 490 CommandReturnObject &result) 491 { 492 PlatformSP platform_sp (m_interpreter.GetDebugger().GetPlatformList().GetSelectedPlatform()); 493 494 Target *target = m_interpreter.GetDebugger().GetSelectedTarget().get(); 495 // N.B. The attach should be synchronous. It doesn't help much to get the prompt back between initiating the attach 496 // and the target actually stopping. So even if the interpreter is set to be asynchronous, we wait for the stop 497 // ourselves here. 498 499 StateType state = eStateInvalid; 500 Process *process = m_exe_ctx.GetProcessPtr(); 501 502 if (!StopProcessIfNecessary (process, state, result)) 503 return false; 504 505 if (target == NULL) 506 { 507 // If there isn't a current target create one. 508 TargetSP new_target_sp; 509 Error error; 510 511 error = m_interpreter.GetDebugger().GetTargetList().CreateTarget (m_interpreter.GetDebugger(), 512 NULL, 513 NULL, 514 false, 515 NULL, // No platform options 516 new_target_sp); 517 target = new_target_sp.get(); 518 if (target == NULL || error.Fail()) 519 { 520 result.AppendError(error.AsCString("Error creating target")); 521 return false; 522 } 523 m_interpreter.GetDebugger().GetTargetList().SetSelectedTarget(target); 524 } 525 526 // Record the old executable module, we want to issue a warning if the process of attaching changed the 527 // current executable (like somebody said "file foo" then attached to a PID whose executable was bar.) 528 529 ModuleSP old_exec_module_sp = target->GetExecutableModule(); 530 ArchSpec old_arch_spec = target->GetArchitecture(); 531 532 ProcessSP process_sp; 533 Error error; 534 if (command.GetArgumentCount()) 535 { 536 result.AppendErrorWithFormat("Invalid arguments for '%s'.\nUsage: %s\n", m_cmd_name.c_str(), m_cmd_syntax.c_str()); 537 result.SetStatus (eReturnStatusFailed); 538 return false; 539 } 540 541 m_interpreter.UpdateExecutionContext(nullptr); 542 ListenerSP listener_sp (new Listener("lldb.CommandObjectProcessAttach.DoExecute.attach.hijack")); 543 m_options.attach_info.SetHijackListener(listener_sp); 544 545 // If no process info was specified, then use the target executable 546 // name as the process to attach to by default 547 if (!m_options.attach_info.ProcessInfoSpecified ()) 548 { 549 if (old_exec_module_sp) 550 m_options.attach_info.GetExecutableFile().GetFilename() = old_exec_module_sp->GetPlatformFileSpec().GetFilename(); 551 552 if (!m_options.attach_info.ProcessInfoSpecified ()) 553 { 554 error.SetErrorString ("no process specified, create a target with a file, or specify the --pid or --name command option"); 555 } 556 } 557 558 if (error.Success()) 559 { 560 if (state != eStateConnected && platform_sp != nullptr && platform_sp->CanDebugProcess()) 561 { 562 target->SetPlatform(platform_sp); 563 process = platform_sp->Attach(m_options.attach_info, m_interpreter.GetDebugger(), target, error).get(); 564 } 565 else 566 { 567 if (state != eStateConnected) 568 { 569 const char *plugin_name = m_options.attach_info.GetProcessPluginName(); 570 process = target->CreateProcess (m_interpreter.GetDebugger().GetListener(), plugin_name, nullptr).get(); 571 if (process == nullptr) 572 error.SetErrorStringWithFormat("failed to create process using plugin %s", plugin_name); 573 } 574 if (process) 575 { 576 process->HijackProcessEvents(listener_sp.get()); 577 error = process->Attach(m_options.attach_info); 578 } 579 } 580 } 581 582 if (error.Success() && process != nullptr) 583 { 584 result.SetStatus (eReturnStatusSuccessContinuingNoResult); 585 StreamString stream; 586 StateType state = process->WaitForProcessToStop (nullptr, nullptr, false, listener_sp.get(), &stream); 587 588 process->RestoreProcessEvents(); 589 result.SetDidChangeProcessState (true); 590 591 if (stream.GetData()) 592 result.AppendMessage(stream.GetData()); 593 594 if (state == eStateStopped) 595 { 596 result.SetStatus (eReturnStatusSuccessFinishNoResult); 597 } 598 else 599 { 600 const char *exit_desc = process->GetExitDescription(); 601 if (exit_desc) 602 result.AppendErrorWithFormat ("attach failed: %s", exit_desc); 603 else 604 result.AppendError ("attach failed: process did not stop (no such process or permission problem?)"); 605 process->Destroy(); 606 result.SetStatus (eReturnStatusFailed); 607 } 608 } 609 else 610 { 611 result.AppendErrorWithFormat ("attach failed: %s\n", error.AsCString()); 612 result.SetStatus (eReturnStatusFailed); 613 } 614 615 if (!result.Succeeded()) 616 return false; 617 618 // Okay, we're done. Last step is to warn if the executable module has changed: 619 char new_path[PATH_MAX]; 620 ModuleSP new_exec_module_sp (target->GetExecutableModule()); 621 if (!old_exec_module_sp) 622 { 623 // We might not have a module if we attached to a raw pid... 624 if (new_exec_module_sp) 625 { 626 new_exec_module_sp->GetFileSpec().GetPath(new_path, PATH_MAX); 627 result.AppendMessageWithFormat("Executable module set to \"%s\".\n", new_path); 628 } 629 } 630 else if (old_exec_module_sp->GetFileSpec() != new_exec_module_sp->GetFileSpec()) 631 { 632 char old_path[PATH_MAX]; 633 634 old_exec_module_sp->GetFileSpec().GetPath (old_path, PATH_MAX); 635 new_exec_module_sp->GetFileSpec().GetPath (new_path, PATH_MAX); 636 637 result.AppendWarningWithFormat("Executable module changed from \"%s\" to \"%s\".\n", 638 old_path, new_path); 639 } 640 641 if (!old_arch_spec.IsValid()) 642 { 643 result.AppendMessageWithFormat ("Architecture set to: %s.\n", target->GetArchitecture().GetTriple().getTriple().c_str()); 644 } 645 else if (!old_arch_spec.IsExactMatch(target->GetArchitecture())) 646 { 647 result.AppendWarningWithFormat("Architecture changed from %s to %s.\n", 648 old_arch_spec.GetTriple().getTriple().c_str(), 649 target->GetArchitecture().GetTriple().getTriple().c_str()); 650 } 651 652 // This supports the use-case scenario of immediately continuing the process once attached. 653 if (m_options.attach_info.GetContinueOnceAttached()) 654 m_interpreter.HandleCommand("process continue", eLazyBoolNo, result); 655 656 return result.Succeeded(); 657 } 658 659 CommandOptions m_options; 660 }; 661 662 663 OptionDefinition 664 CommandObjectProcessAttach::CommandOptions::g_option_table[] = 665 { 666 { LLDB_OPT_SET_ALL, false, "continue",'c', OptionParser::eNoArgument, NULL, NULL, 0, eArgTypeNone, "Immediately continue the process once attached."}, 667 { LLDB_OPT_SET_ALL, false, "plugin", 'P', OptionParser::eRequiredArgument, NULL, NULL, 0, eArgTypePlugin, "Name of the process plugin you want to use."}, 668 { LLDB_OPT_SET_1, false, "pid", 'p', OptionParser::eRequiredArgument, NULL, NULL, 0, eArgTypePid, "The process ID of an existing process to attach to."}, 669 { LLDB_OPT_SET_2, false, "name", 'n', OptionParser::eRequiredArgument, NULL, NULL, 0, eArgTypeProcessName, "The name of the process to attach to."}, 670 { LLDB_OPT_SET_2, false, "include-existing", 'i', OptionParser::eNoArgument, NULL, NULL, 0, eArgTypeNone, "Include existing processes when doing attach -w."}, 671 { LLDB_OPT_SET_2, false, "waitfor", 'w', OptionParser::eNoArgument, NULL, NULL, 0, eArgTypeNone, "Wait for the process with <process-name> to launch."}, 672 { 0, false, NULL, 0, 0, NULL, NULL, 0, eArgTypeNone, NULL } 673 }; 674 675 //------------------------------------------------------------------------- 676 // CommandObjectProcessContinue 677 //------------------------------------------------------------------------- 678 #pragma mark CommandObjectProcessContinue 679 680 class CommandObjectProcessContinue : public CommandObjectParsed 681 { 682 public: 683 684 CommandObjectProcessContinue (CommandInterpreter &interpreter) : 685 CommandObjectParsed (interpreter, 686 "process continue", 687 "Continue execution of all threads in the current process.", 688 "process continue", 689 eFlagRequiresProcess | 690 eFlagTryTargetAPILock | 691 eFlagProcessMustBeLaunched | 692 eFlagProcessMustBePaused ), 693 m_options(interpreter) 694 { 695 } 696 697 698 ~CommandObjectProcessContinue () 699 { 700 } 701 702 protected: 703 704 class CommandOptions : public Options 705 { 706 public: 707 708 CommandOptions (CommandInterpreter &interpreter) : 709 Options(interpreter) 710 { 711 // Keep default values of all options in one place: OptionParsingStarting () 712 OptionParsingStarting (); 713 } 714 715 ~CommandOptions () 716 { 717 } 718 719 Error 720 SetOptionValue (uint32_t option_idx, const char *option_arg) 721 { 722 Error error; 723 const int short_option = m_getopt_table[option_idx].val; 724 bool success = false; 725 switch (short_option) 726 { 727 case 'i': 728 m_ignore = StringConvert::ToUInt32 (option_arg, 0, 0, &success); 729 if (!success) 730 error.SetErrorStringWithFormat ("invalid value for ignore option: \"%s\", should be a number.", option_arg); 731 break; 732 733 default: 734 error.SetErrorStringWithFormat("invalid short option character '%c'", short_option); 735 break; 736 } 737 return error; 738 } 739 740 void 741 OptionParsingStarting () 742 { 743 m_ignore = 0; 744 } 745 746 const OptionDefinition* 747 GetDefinitions () 748 { 749 return g_option_table; 750 } 751 752 // Options table: Required for subclasses of Options. 753 754 static OptionDefinition g_option_table[]; 755 756 uint32_t m_ignore; 757 }; 758 759 bool 760 DoExecute (Args& command, CommandReturnObject &result) 761 { 762 Process *process = m_exe_ctx.GetProcessPtr(); 763 bool synchronous_execution = m_interpreter.GetSynchronous (); 764 StateType state = process->GetState(); 765 if (state == eStateStopped) 766 { 767 if (command.GetArgumentCount() != 0) 768 { 769 result.AppendErrorWithFormat ("The '%s' command does not take any arguments.\n", m_cmd_name.c_str()); 770 result.SetStatus (eReturnStatusFailed); 771 return false; 772 } 773 774 if (m_options.m_ignore > 0) 775 { 776 ThreadSP sel_thread_sp(process->GetThreadList().GetSelectedThread()); 777 if (sel_thread_sp) 778 { 779 StopInfoSP stop_info_sp = sel_thread_sp->GetStopInfo(); 780 if (stop_info_sp && stop_info_sp->GetStopReason() == eStopReasonBreakpoint) 781 { 782 lldb::break_id_t bp_site_id = (lldb::break_id_t)stop_info_sp->GetValue(); 783 BreakpointSiteSP bp_site_sp(process->GetBreakpointSiteList().FindByID(bp_site_id)); 784 if (bp_site_sp) 785 { 786 const size_t num_owners = bp_site_sp->GetNumberOfOwners(); 787 for (size_t i = 0; i < num_owners; i++) 788 { 789 Breakpoint &bp_ref = bp_site_sp->GetOwnerAtIndex(i)->GetBreakpoint(); 790 if (!bp_ref.IsInternal()) 791 { 792 bp_ref.SetIgnoreCount(m_options.m_ignore); 793 } 794 } 795 } 796 } 797 } 798 } 799 800 { // Scope for thread list mutex: 801 Mutex::Locker locker (process->GetThreadList().GetMutex()); 802 const uint32_t num_threads = process->GetThreadList().GetSize(); 803 804 // Set the actions that the threads should each take when resuming 805 for (uint32_t idx=0; idx<num_threads; ++idx) 806 { 807 const bool override_suspend = false; 808 process->GetThreadList().GetThreadAtIndex(idx)->SetResumeState (eStateRunning, override_suspend); 809 } 810 } 811 812 StreamString stream; 813 Error error; 814 if (synchronous_execution) 815 error = process->ResumeSynchronous (&stream); 816 else 817 error = process->Resume (); 818 819 if (error.Success()) 820 { 821 // There is a race condition where this thread will return up the call stack to the main command 822 // handler and show an (lldb) prompt before HandlePrivateEvent (from PrivateStateThread) has 823 // a chance to call PushProcessIOHandler(). 824 process->SyncIOHandler(2000); 825 826 result.AppendMessageWithFormat ("Process %" PRIu64 " resuming\n", process->GetID()); 827 if (synchronous_execution) 828 { 829 // If any state changed events had anything to say, add that to the result 830 if (stream.GetData()) 831 result.AppendMessage(stream.GetData()); 832 833 result.SetDidChangeProcessState (true); 834 result.SetStatus (eReturnStatusSuccessFinishNoResult); 835 } 836 else 837 { 838 result.SetStatus (eReturnStatusSuccessContinuingNoResult); 839 } 840 } 841 else 842 { 843 result.AppendErrorWithFormat("Failed to resume process: %s.\n", error.AsCString()); 844 result.SetStatus (eReturnStatusFailed); 845 } 846 } 847 else 848 { 849 result.AppendErrorWithFormat ("Process cannot be continued from its current state (%s).\n", 850 StateAsCString(state)); 851 result.SetStatus (eReturnStatusFailed); 852 } 853 return result.Succeeded(); 854 } 855 856 Options * 857 GetOptions () 858 { 859 return &m_options; 860 } 861 862 CommandOptions m_options; 863 864 }; 865 866 OptionDefinition 867 CommandObjectProcessContinue::CommandOptions::g_option_table[] = 868 { 869 { LLDB_OPT_SET_ALL, false, "ignore-count",'i', OptionParser::eRequiredArgument, NULL, NULL, 0, eArgTypeUnsignedInteger, 870 "Ignore <N> crossings of the breakpoint (if it exists) for the currently selected thread."}, 871 { 0, false, NULL, 0, 0, NULL, NULL, 0, eArgTypeNone, NULL } 872 }; 873 874 //------------------------------------------------------------------------- 875 // CommandObjectProcessDetach 876 //------------------------------------------------------------------------- 877 #pragma mark CommandObjectProcessDetach 878 879 class CommandObjectProcessDetach : public CommandObjectParsed 880 { 881 public: 882 class CommandOptions : public Options 883 { 884 public: 885 886 CommandOptions (CommandInterpreter &interpreter) : 887 Options (interpreter) 888 { 889 OptionParsingStarting (); 890 } 891 892 ~CommandOptions () 893 { 894 } 895 896 Error 897 SetOptionValue (uint32_t option_idx, const char *option_arg) 898 { 899 Error error; 900 const int short_option = m_getopt_table[option_idx].val; 901 902 switch (short_option) 903 { 904 case 's': 905 bool tmp_result; 906 bool success; 907 tmp_result = Args::StringToBoolean(option_arg, false, &success); 908 if (!success) 909 error.SetErrorStringWithFormat("invalid boolean option: \"%s\"", option_arg); 910 else 911 { 912 if (tmp_result) 913 m_keep_stopped = eLazyBoolYes; 914 else 915 m_keep_stopped = eLazyBoolNo; 916 } 917 break; 918 default: 919 error.SetErrorStringWithFormat("invalid short option character '%c'", short_option); 920 break; 921 } 922 return error; 923 } 924 925 void 926 OptionParsingStarting () 927 { 928 m_keep_stopped = eLazyBoolCalculate; 929 } 930 931 const OptionDefinition* 932 GetDefinitions () 933 { 934 return g_option_table; 935 } 936 937 // Options table: Required for subclasses of Options. 938 939 static OptionDefinition g_option_table[]; 940 941 // Instance variables to hold the values for command options. 942 LazyBool m_keep_stopped; 943 }; 944 945 CommandObjectProcessDetach (CommandInterpreter &interpreter) : 946 CommandObjectParsed (interpreter, 947 "process detach", 948 "Detach from the current process being debugged.", 949 "process detach", 950 eFlagRequiresProcess | 951 eFlagTryTargetAPILock | 952 eFlagProcessMustBeLaunched), 953 m_options(interpreter) 954 { 955 } 956 957 ~CommandObjectProcessDetach () 958 { 959 } 960 961 Options * 962 GetOptions () 963 { 964 return &m_options; 965 } 966 967 968 protected: 969 bool 970 DoExecute (Args& command, CommandReturnObject &result) 971 { 972 Process *process = m_exe_ctx.GetProcessPtr(); 973 // FIXME: This will be a Command Option: 974 bool keep_stopped; 975 if (m_options.m_keep_stopped == eLazyBoolCalculate) 976 { 977 // Check the process default: 978 if (process->GetDetachKeepsStopped()) 979 keep_stopped = true; 980 else 981 keep_stopped = false; 982 } 983 else if (m_options.m_keep_stopped == eLazyBoolYes) 984 keep_stopped = true; 985 else 986 keep_stopped = false; 987 988 Error error (process->Detach(keep_stopped)); 989 if (error.Success()) 990 { 991 result.SetStatus (eReturnStatusSuccessFinishResult); 992 } 993 else 994 { 995 result.AppendErrorWithFormat ("Detach failed: %s\n", error.AsCString()); 996 result.SetStatus (eReturnStatusFailed); 997 return false; 998 } 999 return result.Succeeded(); 1000 } 1001 1002 CommandOptions m_options; 1003 }; 1004 1005 OptionDefinition 1006 CommandObjectProcessDetach::CommandOptions::g_option_table[] = 1007 { 1008 { 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)." }, 1009 { 0, false, NULL, 0, 0, NULL, NULL, 0, eArgTypeNone, NULL } 1010 }; 1011 1012 //------------------------------------------------------------------------- 1013 // CommandObjectProcessConnect 1014 //------------------------------------------------------------------------- 1015 #pragma mark CommandObjectProcessConnect 1016 1017 class CommandObjectProcessConnect : public CommandObjectParsed 1018 { 1019 public: 1020 1021 class CommandOptions : public Options 1022 { 1023 public: 1024 1025 CommandOptions (CommandInterpreter &interpreter) : 1026 Options(interpreter) 1027 { 1028 // Keep default values of all options in one place: OptionParsingStarting () 1029 OptionParsingStarting (); 1030 } 1031 1032 ~CommandOptions () 1033 { 1034 } 1035 1036 Error 1037 SetOptionValue (uint32_t option_idx, const char *option_arg) 1038 { 1039 Error error; 1040 const int short_option = m_getopt_table[option_idx].val; 1041 1042 switch (short_option) 1043 { 1044 case 'p': 1045 plugin_name.assign (option_arg); 1046 break; 1047 1048 default: 1049 error.SetErrorStringWithFormat("invalid short option character '%c'", short_option); 1050 break; 1051 } 1052 return error; 1053 } 1054 1055 void 1056 OptionParsingStarting () 1057 { 1058 plugin_name.clear(); 1059 } 1060 1061 const OptionDefinition* 1062 GetDefinitions () 1063 { 1064 return g_option_table; 1065 } 1066 1067 // Options table: Required for subclasses of Options. 1068 1069 static OptionDefinition g_option_table[]; 1070 1071 // Instance variables to hold the values for command options. 1072 1073 std::string plugin_name; 1074 }; 1075 1076 CommandObjectProcessConnect (CommandInterpreter &interpreter) : 1077 CommandObjectParsed (interpreter, 1078 "process connect", 1079 "Connect to a remote debug service.", 1080 "process connect <remote-url>", 1081 0), 1082 m_options (interpreter) 1083 { 1084 } 1085 1086 ~CommandObjectProcessConnect () 1087 { 1088 } 1089 1090 1091 Options * 1092 GetOptions () 1093 { 1094 return &m_options; 1095 } 1096 1097 protected: 1098 bool 1099 DoExecute (Args& command, 1100 CommandReturnObject &result) 1101 { 1102 1103 TargetSP target_sp (m_interpreter.GetDebugger().GetSelectedTarget()); 1104 Error error; 1105 Process *process = m_exe_ctx.GetProcessPtr(); 1106 if (process) 1107 { 1108 if (process->IsAlive()) 1109 { 1110 result.AppendErrorWithFormat ("Process %" PRIu64 " is currently being debugged, kill the process before connecting.\n", 1111 process->GetID()); 1112 result.SetStatus (eReturnStatusFailed); 1113 return false; 1114 } 1115 } 1116 1117 if (!target_sp) 1118 { 1119 // If there isn't a current target create one. 1120 1121 error = m_interpreter.GetDebugger().GetTargetList().CreateTarget (m_interpreter.GetDebugger(), 1122 NULL, 1123 NULL, 1124 false, 1125 NULL, // No platform options 1126 target_sp); 1127 if (!target_sp || error.Fail()) 1128 { 1129 result.AppendError(error.AsCString("Error creating target")); 1130 result.SetStatus (eReturnStatusFailed); 1131 return false; 1132 } 1133 m_interpreter.GetDebugger().GetTargetList().SetSelectedTarget(target_sp.get()); 1134 } 1135 1136 if (command.GetArgumentCount() == 1) 1137 { 1138 const char *plugin_name = NULL; 1139 if (!m_options.plugin_name.empty()) 1140 plugin_name = m_options.plugin_name.c_str(); 1141 1142 const char *remote_url = command.GetArgumentAtIndex(0); 1143 process = target_sp->CreateProcess (m_interpreter.GetDebugger().GetListener(), plugin_name, NULL).get(); 1144 1145 if (process) 1146 { 1147 error = process->ConnectRemote (process->GetTarget().GetDebugger().GetOutputFile().get(), remote_url); 1148 1149 if (error.Fail()) 1150 { 1151 result.AppendError(error.AsCString("Remote connect failed")); 1152 result.SetStatus (eReturnStatusFailed); 1153 target_sp->DeleteCurrentProcess(); 1154 return false; 1155 } 1156 } 1157 else 1158 { 1159 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", 1160 remote_url); 1161 result.SetStatus (eReturnStatusFailed); 1162 } 1163 } 1164 else 1165 { 1166 result.AppendErrorWithFormat ("'%s' takes exactly one argument:\nUsage: %s\n", 1167 m_cmd_name.c_str(), 1168 m_cmd_syntax.c_str()); 1169 result.SetStatus (eReturnStatusFailed); 1170 } 1171 return result.Succeeded(); 1172 } 1173 1174 CommandOptions m_options; 1175 }; 1176 1177 OptionDefinition 1178 CommandObjectProcessConnect::CommandOptions::g_option_table[] = 1179 { 1180 { LLDB_OPT_SET_ALL, false, "plugin", 'p', OptionParser::eRequiredArgument, NULL, NULL, 0, eArgTypePlugin, "Name of the process plugin you want to use."}, 1181 { 0, false, NULL, 0 , 0, NULL, NULL, 0, eArgTypeNone, NULL } 1182 }; 1183 1184 //------------------------------------------------------------------------- 1185 // CommandObjectProcessPlugin 1186 //------------------------------------------------------------------------- 1187 #pragma mark CommandObjectProcessPlugin 1188 1189 class CommandObjectProcessPlugin : public CommandObjectProxy 1190 { 1191 public: 1192 1193 CommandObjectProcessPlugin (CommandInterpreter &interpreter) : 1194 CommandObjectProxy (interpreter, 1195 "process plugin", 1196 "Send a custom command to the current process plug-in.", 1197 "process plugin <args>", 1198 0) 1199 { 1200 } 1201 1202 ~CommandObjectProcessPlugin () 1203 { 1204 } 1205 1206 virtual CommandObject * 1207 GetProxyCommandObject() 1208 { 1209 Process *process = m_interpreter.GetExecutionContext().GetProcessPtr(); 1210 if (process) 1211 return process->GetPluginCommandObject(); 1212 return NULL; 1213 } 1214 }; 1215 1216 1217 //------------------------------------------------------------------------- 1218 // CommandObjectProcessLoad 1219 //------------------------------------------------------------------------- 1220 #pragma mark CommandObjectProcessLoad 1221 1222 class CommandObjectProcessLoad : public CommandObjectParsed 1223 { 1224 public: 1225 1226 CommandObjectProcessLoad (CommandInterpreter &interpreter) : 1227 CommandObjectParsed (interpreter, 1228 "process load", 1229 "Load a shared library into the current process.", 1230 "process load <filename> [<filename> ...]", 1231 eFlagRequiresProcess | 1232 eFlagTryTargetAPILock | 1233 eFlagProcessMustBeLaunched | 1234 eFlagProcessMustBePaused ) 1235 { 1236 } 1237 1238 ~CommandObjectProcessLoad () 1239 { 1240 } 1241 1242 protected: 1243 bool 1244 DoExecute (Args& command, 1245 CommandReturnObject &result) 1246 { 1247 Process *process = m_exe_ctx.GetProcessPtr(); 1248 1249 const size_t argc = command.GetArgumentCount(); 1250 1251 for (uint32_t i=0; i<argc; ++i) 1252 { 1253 Error error; 1254 const char *image_path = command.GetArgumentAtIndex(i); 1255 FileSpec image_spec (image_path, false); 1256 process->GetTarget().GetPlatform()->ResolveRemotePath(image_spec, image_spec); 1257 uint32_t image_token = process->LoadImage(image_spec, error); 1258 if (image_token != LLDB_INVALID_IMAGE_TOKEN) 1259 { 1260 result.AppendMessageWithFormat ("Loading \"%s\"...ok\nImage %u loaded.\n", image_path, image_token); 1261 result.SetStatus (eReturnStatusSuccessFinishResult); 1262 } 1263 else 1264 { 1265 result.AppendErrorWithFormat ("failed to load '%s': %s", image_path, error.AsCString()); 1266 result.SetStatus (eReturnStatusFailed); 1267 } 1268 } 1269 return result.Succeeded(); 1270 } 1271 }; 1272 1273 1274 //------------------------------------------------------------------------- 1275 // CommandObjectProcessUnload 1276 //------------------------------------------------------------------------- 1277 #pragma mark CommandObjectProcessUnload 1278 1279 class CommandObjectProcessUnload : public CommandObjectParsed 1280 { 1281 public: 1282 1283 CommandObjectProcessUnload (CommandInterpreter &interpreter) : 1284 CommandObjectParsed (interpreter, 1285 "process unload", 1286 "Unload a shared library from the current process using the index returned by a previous call to \"process load\".", 1287 "process unload <index>", 1288 eFlagRequiresProcess | 1289 eFlagTryTargetAPILock | 1290 eFlagProcessMustBeLaunched | 1291 eFlagProcessMustBePaused ) 1292 { 1293 } 1294 1295 ~CommandObjectProcessUnload () 1296 { 1297 } 1298 1299 protected: 1300 bool 1301 DoExecute (Args& command, 1302 CommandReturnObject &result) 1303 { 1304 Process *process = m_exe_ctx.GetProcessPtr(); 1305 1306 const size_t argc = command.GetArgumentCount(); 1307 1308 for (uint32_t i=0; i<argc; ++i) 1309 { 1310 const char *image_token_cstr = command.GetArgumentAtIndex(i); 1311 uint32_t image_token = StringConvert::ToUInt32(image_token_cstr, LLDB_INVALID_IMAGE_TOKEN, 0); 1312 if (image_token == LLDB_INVALID_IMAGE_TOKEN) 1313 { 1314 result.AppendErrorWithFormat ("invalid image index argument '%s'", image_token_cstr); 1315 result.SetStatus (eReturnStatusFailed); 1316 break; 1317 } 1318 else 1319 { 1320 Error error (process->UnloadImage(image_token)); 1321 if (error.Success()) 1322 { 1323 result.AppendMessageWithFormat ("Unloading shared library with index %u...ok\n", image_token); 1324 result.SetStatus (eReturnStatusSuccessFinishResult); 1325 } 1326 else 1327 { 1328 result.AppendErrorWithFormat ("failed to unload image: %s", error.AsCString()); 1329 result.SetStatus (eReturnStatusFailed); 1330 break; 1331 } 1332 } 1333 } 1334 return result.Succeeded(); 1335 } 1336 }; 1337 1338 //------------------------------------------------------------------------- 1339 // CommandObjectProcessSignal 1340 //------------------------------------------------------------------------- 1341 #pragma mark CommandObjectProcessSignal 1342 1343 class CommandObjectProcessSignal : public CommandObjectParsed 1344 { 1345 public: 1346 1347 CommandObjectProcessSignal (CommandInterpreter &interpreter) : 1348 CommandObjectParsed (interpreter, 1349 "process signal", 1350 "Send a UNIX signal to the current process being debugged.", 1351 NULL, 1352 eFlagRequiresProcess | eFlagTryTargetAPILock) 1353 { 1354 CommandArgumentEntry arg; 1355 CommandArgumentData signal_arg; 1356 1357 // Define the first (and only) variant of this arg. 1358 signal_arg.arg_type = eArgTypeUnixSignal; 1359 signal_arg.arg_repetition = eArgRepeatPlain; 1360 1361 // There is only one variant this argument could be; put it into the argument entry. 1362 arg.push_back (signal_arg); 1363 1364 // Push the data for the first argument into the m_arguments vector. 1365 m_arguments.push_back (arg); 1366 } 1367 1368 ~CommandObjectProcessSignal () 1369 { 1370 } 1371 1372 protected: 1373 bool 1374 DoExecute (Args& command, 1375 CommandReturnObject &result) 1376 { 1377 Process *process = m_exe_ctx.GetProcessPtr(); 1378 1379 if (command.GetArgumentCount() == 1) 1380 { 1381 int signo = LLDB_INVALID_SIGNAL_NUMBER; 1382 1383 const char *signal_name = command.GetArgumentAtIndex(0); 1384 if (::isxdigit (signal_name[0])) 1385 signo = StringConvert::ToSInt32(signal_name, LLDB_INVALID_SIGNAL_NUMBER, 0); 1386 else 1387 signo = process->GetUnixSignals().GetSignalNumberFromName (signal_name); 1388 1389 if (signo == LLDB_INVALID_SIGNAL_NUMBER) 1390 { 1391 result.AppendErrorWithFormat ("Invalid signal argument '%s'.\n", command.GetArgumentAtIndex(0)); 1392 result.SetStatus (eReturnStatusFailed); 1393 } 1394 else 1395 { 1396 Error error (process->Signal (signo)); 1397 if (error.Success()) 1398 { 1399 result.SetStatus (eReturnStatusSuccessFinishResult); 1400 } 1401 else 1402 { 1403 result.AppendErrorWithFormat ("Failed to send signal %i: %s\n", signo, error.AsCString()); 1404 result.SetStatus (eReturnStatusFailed); 1405 } 1406 } 1407 } 1408 else 1409 { 1410 result.AppendErrorWithFormat("'%s' takes exactly one signal number argument:\nUsage: %s\n", m_cmd_name.c_str(), 1411 m_cmd_syntax.c_str()); 1412 result.SetStatus (eReturnStatusFailed); 1413 } 1414 return result.Succeeded(); 1415 } 1416 }; 1417 1418 1419 //------------------------------------------------------------------------- 1420 // CommandObjectProcessInterrupt 1421 //------------------------------------------------------------------------- 1422 #pragma mark CommandObjectProcessInterrupt 1423 1424 class CommandObjectProcessInterrupt : public CommandObjectParsed 1425 { 1426 public: 1427 1428 1429 CommandObjectProcessInterrupt (CommandInterpreter &interpreter) : 1430 CommandObjectParsed (interpreter, 1431 "process interrupt", 1432 "Interrupt the current process being debugged.", 1433 "process interrupt", 1434 eFlagRequiresProcess | 1435 eFlagTryTargetAPILock | 1436 eFlagProcessMustBeLaunched) 1437 { 1438 } 1439 1440 ~CommandObjectProcessInterrupt () 1441 { 1442 } 1443 1444 protected: 1445 bool 1446 DoExecute (Args& command, 1447 CommandReturnObject &result) 1448 { 1449 Process *process = m_exe_ctx.GetProcessPtr(); 1450 if (process == NULL) 1451 { 1452 result.AppendError ("no process to halt"); 1453 result.SetStatus (eReturnStatusFailed); 1454 return false; 1455 } 1456 1457 if (command.GetArgumentCount() == 0) 1458 { 1459 bool clear_thread_plans = true; 1460 Error error(process->Halt (clear_thread_plans)); 1461 if (error.Success()) 1462 { 1463 result.SetStatus (eReturnStatusSuccessFinishResult); 1464 } 1465 else 1466 { 1467 result.AppendErrorWithFormat ("Failed to halt process: %s\n", error.AsCString()); 1468 result.SetStatus (eReturnStatusFailed); 1469 } 1470 } 1471 else 1472 { 1473 result.AppendErrorWithFormat("'%s' takes no arguments:\nUsage: %s\n", 1474 m_cmd_name.c_str(), 1475 m_cmd_syntax.c_str()); 1476 result.SetStatus (eReturnStatusFailed); 1477 } 1478 return result.Succeeded(); 1479 } 1480 }; 1481 1482 //------------------------------------------------------------------------- 1483 // CommandObjectProcessKill 1484 //------------------------------------------------------------------------- 1485 #pragma mark CommandObjectProcessKill 1486 1487 class CommandObjectProcessKill : public CommandObjectParsed 1488 { 1489 public: 1490 1491 CommandObjectProcessKill (CommandInterpreter &interpreter) : 1492 CommandObjectParsed (interpreter, 1493 "process kill", 1494 "Terminate the current process being debugged.", 1495 "process kill", 1496 eFlagRequiresProcess | 1497 eFlagTryTargetAPILock | 1498 eFlagProcessMustBeLaunched) 1499 { 1500 } 1501 1502 ~CommandObjectProcessKill () 1503 { 1504 } 1505 1506 protected: 1507 bool 1508 DoExecute (Args& command, 1509 CommandReturnObject &result) 1510 { 1511 Process *process = m_exe_ctx.GetProcessPtr(); 1512 if (process == NULL) 1513 { 1514 result.AppendError ("no process to kill"); 1515 result.SetStatus (eReturnStatusFailed); 1516 return false; 1517 } 1518 1519 if (command.GetArgumentCount() == 0) 1520 { 1521 Error error (process->Destroy()); 1522 if (error.Success()) 1523 { 1524 result.SetStatus (eReturnStatusSuccessFinishResult); 1525 } 1526 else 1527 { 1528 result.AppendErrorWithFormat ("Failed to kill process: %s\n", error.AsCString()); 1529 result.SetStatus (eReturnStatusFailed); 1530 } 1531 } 1532 else 1533 { 1534 result.AppendErrorWithFormat("'%s' takes no arguments:\nUsage: %s\n", 1535 m_cmd_name.c_str(), 1536 m_cmd_syntax.c_str()); 1537 result.SetStatus (eReturnStatusFailed); 1538 } 1539 return result.Succeeded(); 1540 } 1541 }; 1542 1543 //------------------------------------------------------------------------- 1544 // CommandObjectProcessSaveCore 1545 //------------------------------------------------------------------------- 1546 #pragma mark CommandObjectProcessSaveCore 1547 1548 class CommandObjectProcessSaveCore : public CommandObjectParsed 1549 { 1550 public: 1551 1552 CommandObjectProcessSaveCore (CommandInterpreter &interpreter) : 1553 CommandObjectParsed (interpreter, 1554 "process save-core", 1555 "Save the current process as a core file using an appropriate file type.", 1556 "process save-core FILE", 1557 eFlagRequiresProcess | 1558 eFlagTryTargetAPILock | 1559 eFlagProcessMustBeLaunched) 1560 { 1561 } 1562 1563 ~CommandObjectProcessSaveCore () 1564 { 1565 } 1566 1567 protected: 1568 bool 1569 DoExecute (Args& command, 1570 CommandReturnObject &result) 1571 { 1572 ProcessSP process_sp = m_exe_ctx.GetProcessSP(); 1573 if (process_sp) 1574 { 1575 if (command.GetArgumentCount() == 1) 1576 { 1577 FileSpec output_file(command.GetArgumentAtIndex(0), false); 1578 Error error = PluginManager::SaveCore(process_sp, output_file); 1579 if (error.Success()) 1580 { 1581 result.SetStatus (eReturnStatusSuccessFinishResult); 1582 } 1583 else 1584 { 1585 result.AppendErrorWithFormat ("Failed to save core file for process: %s\n", error.AsCString()); 1586 result.SetStatus (eReturnStatusFailed); 1587 } 1588 } 1589 else 1590 { 1591 result.AppendErrorWithFormat ("'%s' takes one arguments:\nUsage: %s\n", 1592 m_cmd_name.c_str(), 1593 m_cmd_syntax.c_str()); 1594 result.SetStatus (eReturnStatusFailed); 1595 } 1596 } 1597 else 1598 { 1599 result.AppendError ("invalid process"); 1600 result.SetStatus (eReturnStatusFailed); 1601 return false; 1602 } 1603 1604 return result.Succeeded(); 1605 } 1606 }; 1607 1608 //------------------------------------------------------------------------- 1609 // CommandObjectProcessStatus 1610 //------------------------------------------------------------------------- 1611 #pragma mark CommandObjectProcessStatus 1612 1613 class CommandObjectProcessStatus : public CommandObjectParsed 1614 { 1615 public: 1616 CommandObjectProcessStatus (CommandInterpreter &interpreter) : 1617 CommandObjectParsed (interpreter, 1618 "process status", 1619 "Show the current status and location of executing process.", 1620 "process status", 1621 eFlagRequiresProcess | eFlagTryTargetAPILock) 1622 { 1623 } 1624 1625 ~CommandObjectProcessStatus() 1626 { 1627 } 1628 1629 1630 bool 1631 DoExecute (Args& command, CommandReturnObject &result) 1632 { 1633 Stream &strm = result.GetOutputStream(); 1634 result.SetStatus (eReturnStatusSuccessFinishNoResult); 1635 // No need to check "process" for validity as eFlagRequiresProcess ensures it is valid 1636 Process *process = m_exe_ctx.GetProcessPtr(); 1637 const bool only_threads_with_stop_reason = true; 1638 const uint32_t start_frame = 0; 1639 const uint32_t num_frames = 1; 1640 const uint32_t num_frames_with_source = 1; 1641 process->GetStatus(strm); 1642 process->GetThreadStatus (strm, 1643 only_threads_with_stop_reason, 1644 start_frame, 1645 num_frames, 1646 num_frames_with_source); 1647 return result.Succeeded(); 1648 } 1649 }; 1650 1651 //------------------------------------------------------------------------- 1652 // CommandObjectProcessHandle 1653 //------------------------------------------------------------------------- 1654 #pragma mark CommandObjectProcessHandle 1655 1656 class CommandObjectProcessHandle : public CommandObjectParsed 1657 { 1658 public: 1659 1660 class CommandOptions : public Options 1661 { 1662 public: 1663 1664 CommandOptions (CommandInterpreter &interpreter) : 1665 Options (interpreter) 1666 { 1667 OptionParsingStarting (); 1668 } 1669 1670 ~CommandOptions () 1671 { 1672 } 1673 1674 Error 1675 SetOptionValue (uint32_t option_idx, const char *option_arg) 1676 { 1677 Error error; 1678 const int short_option = m_getopt_table[option_idx].val; 1679 1680 switch (short_option) 1681 { 1682 case 's': 1683 stop = option_arg; 1684 break; 1685 case 'n': 1686 notify = option_arg; 1687 break; 1688 case 'p': 1689 pass = option_arg; 1690 break; 1691 default: 1692 error.SetErrorStringWithFormat("invalid short option character '%c'", short_option); 1693 break; 1694 } 1695 return error; 1696 } 1697 1698 void 1699 OptionParsingStarting () 1700 { 1701 stop.clear(); 1702 notify.clear(); 1703 pass.clear(); 1704 } 1705 1706 const OptionDefinition* 1707 GetDefinitions () 1708 { 1709 return g_option_table; 1710 } 1711 1712 // Options table: Required for subclasses of Options. 1713 1714 static OptionDefinition g_option_table[]; 1715 1716 // Instance variables to hold the values for command options. 1717 1718 std::string stop; 1719 std::string notify; 1720 std::string pass; 1721 }; 1722 1723 1724 CommandObjectProcessHandle (CommandInterpreter &interpreter) : 1725 CommandObjectParsed (interpreter, 1726 "process handle", 1727 "Show or update what the process and debugger should do with various signals received from the OS.", 1728 NULL), 1729 m_options (interpreter) 1730 { 1731 SetHelpLong ("If no signals are specified, update them all. If no update option is specified, list the current values.\n"); 1732 CommandArgumentEntry arg; 1733 CommandArgumentData signal_arg; 1734 1735 signal_arg.arg_type = eArgTypeUnixSignal; 1736 signal_arg.arg_repetition = eArgRepeatStar; 1737 1738 arg.push_back (signal_arg); 1739 1740 m_arguments.push_back (arg); 1741 } 1742 1743 ~CommandObjectProcessHandle () 1744 { 1745 } 1746 1747 Options * 1748 GetOptions () 1749 { 1750 return &m_options; 1751 } 1752 1753 bool 1754 VerifyCommandOptionValue (const std::string &option, int &real_value) 1755 { 1756 bool okay = true; 1757 1758 bool success = false; 1759 bool tmp_value = Args::StringToBoolean (option.c_str(), false, &success); 1760 1761 if (success && tmp_value) 1762 real_value = 1; 1763 else if (success && !tmp_value) 1764 real_value = 0; 1765 else 1766 { 1767 // If the value isn't 'true' or 'false', it had better be 0 or 1. 1768 real_value = StringConvert::ToUInt32 (option.c_str(), 3); 1769 if (real_value != 0 && real_value != 1) 1770 okay = false; 1771 } 1772 1773 return okay; 1774 } 1775 1776 void 1777 PrintSignalHeader (Stream &str) 1778 { 1779 str.Printf ("NAME PASS STOP NOTIFY\n"); 1780 str.Printf ("========== ===== ===== ======\n"); 1781 } 1782 1783 void 1784 PrintSignal (Stream &str, int32_t signo, const char *sig_name, UnixSignals &signals) 1785 { 1786 bool stop; 1787 bool suppress; 1788 bool notify; 1789 1790 str.Printf ("%-10s ", sig_name); 1791 if (signals.GetSignalInfo (signo, suppress, stop, notify)) 1792 { 1793 bool pass = !suppress; 1794 str.Printf ("%s %s %s", 1795 (pass ? "true " : "false"), 1796 (stop ? "true " : "false"), 1797 (notify ? "true " : "false")); 1798 } 1799 str.Printf ("\n"); 1800 } 1801 1802 void 1803 PrintSignalInformation (Stream &str, Args &signal_args, int num_valid_signals, UnixSignals &signals) 1804 { 1805 PrintSignalHeader (str); 1806 1807 if (num_valid_signals > 0) 1808 { 1809 size_t num_args = signal_args.GetArgumentCount(); 1810 for (size_t i = 0; i < num_args; ++i) 1811 { 1812 int32_t signo = signals.GetSignalNumberFromName (signal_args.GetArgumentAtIndex (i)); 1813 if (signo != LLDB_INVALID_SIGNAL_NUMBER) 1814 PrintSignal (str, signo, signal_args.GetArgumentAtIndex (i), signals); 1815 } 1816 } 1817 else // Print info for ALL signals 1818 { 1819 int32_t signo = signals.GetFirstSignalNumber(); 1820 while (signo != LLDB_INVALID_SIGNAL_NUMBER) 1821 { 1822 PrintSignal (str, signo, signals.GetSignalAsCString (signo), signals); 1823 signo = signals.GetNextSignalNumber (signo); 1824 } 1825 } 1826 } 1827 1828 protected: 1829 bool 1830 DoExecute (Args &signal_args, CommandReturnObject &result) 1831 { 1832 TargetSP target_sp = m_interpreter.GetDebugger().GetSelectedTarget(); 1833 1834 if (!target_sp) 1835 { 1836 result.AppendError ("No current target;" 1837 " cannot handle signals until you have a valid target and process.\n"); 1838 result.SetStatus (eReturnStatusFailed); 1839 return false; 1840 } 1841 1842 ProcessSP process_sp = target_sp->GetProcessSP(); 1843 1844 if (!process_sp) 1845 { 1846 result.AppendError ("No current process; cannot handle signals until you have a valid process.\n"); 1847 result.SetStatus (eReturnStatusFailed); 1848 return false; 1849 } 1850 1851 int stop_action = -1; // -1 means leave the current setting alone 1852 int pass_action = -1; // -1 means leave the current setting alone 1853 int notify_action = -1; // -1 means leave the current setting alone 1854 1855 if (! m_options.stop.empty() 1856 && ! VerifyCommandOptionValue (m_options.stop, stop_action)) 1857 { 1858 result.AppendError ("Invalid argument for command option --stop; must be true or false.\n"); 1859 result.SetStatus (eReturnStatusFailed); 1860 return false; 1861 } 1862 1863 if (! m_options.notify.empty() 1864 && ! VerifyCommandOptionValue (m_options.notify, notify_action)) 1865 { 1866 result.AppendError ("Invalid argument for command option --notify; must be true or false.\n"); 1867 result.SetStatus (eReturnStatusFailed); 1868 return false; 1869 } 1870 1871 if (! m_options.pass.empty() 1872 && ! VerifyCommandOptionValue (m_options.pass, pass_action)) 1873 { 1874 result.AppendError ("Invalid argument for command option --pass; must be true or false.\n"); 1875 result.SetStatus (eReturnStatusFailed); 1876 return false; 1877 } 1878 1879 size_t num_args = signal_args.GetArgumentCount(); 1880 UnixSignals &signals = process_sp->GetUnixSignals(); 1881 int num_signals_set = 0; 1882 1883 if (num_args > 0) 1884 { 1885 for (size_t i = 0; i < num_args; ++i) 1886 { 1887 int32_t signo = signals.GetSignalNumberFromName (signal_args.GetArgumentAtIndex (i)); 1888 if (signo != LLDB_INVALID_SIGNAL_NUMBER) 1889 { 1890 // Casting the actions as bools here should be okay, because VerifyCommandOptionValue guarantees 1891 // the value is either 0 or 1. 1892 if (stop_action != -1) 1893 signals.SetShouldStop (signo, (bool) stop_action); 1894 if (pass_action != -1) 1895 { 1896 bool suppress = ! ((bool) pass_action); 1897 signals.SetShouldSuppress (signo, suppress); 1898 } 1899 if (notify_action != -1) 1900 signals.SetShouldNotify (signo, (bool) notify_action); 1901 ++num_signals_set; 1902 } 1903 else 1904 { 1905 result.AppendErrorWithFormat ("Invalid signal name '%s'\n", signal_args.GetArgumentAtIndex (i)); 1906 } 1907 } 1908 } 1909 else 1910 { 1911 // No signal specified, if any command options were specified, update ALL signals. 1912 if ((notify_action != -1) || (stop_action != -1) || (pass_action != -1)) 1913 { 1914 if (m_interpreter.Confirm ("Do you really want to update all the signals?", false)) 1915 { 1916 int32_t signo = signals.GetFirstSignalNumber(); 1917 while (signo != LLDB_INVALID_SIGNAL_NUMBER) 1918 { 1919 if (notify_action != -1) 1920 signals.SetShouldNotify (signo, (bool) notify_action); 1921 if (stop_action != -1) 1922 signals.SetShouldStop (signo, (bool) stop_action); 1923 if (pass_action != -1) 1924 { 1925 bool suppress = ! ((bool) pass_action); 1926 signals.SetShouldSuppress (signo, suppress); 1927 } 1928 signo = signals.GetNextSignalNumber (signo); 1929 } 1930 } 1931 } 1932 } 1933 1934 PrintSignalInformation (result.GetOutputStream(), signal_args, num_signals_set, signals); 1935 1936 if (num_signals_set > 0) 1937 result.SetStatus (eReturnStatusSuccessFinishNoResult); 1938 else 1939 result.SetStatus (eReturnStatusFailed); 1940 1941 return result.Succeeded(); 1942 } 1943 1944 CommandOptions m_options; 1945 }; 1946 1947 OptionDefinition 1948 CommandObjectProcessHandle::CommandOptions::g_option_table[] = 1949 { 1950 { 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." }, 1951 { 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." }, 1952 { LLDB_OPT_SET_1, false, "pass", 'p', OptionParser::eRequiredArgument, NULL, NULL, 0, eArgTypeBoolean, "Whether or not the signal should be passed to the process." }, 1953 { 0, false, NULL, 0, 0, NULL, NULL, 0, eArgTypeNone, NULL } 1954 }; 1955 1956 //------------------------------------------------------------------------- 1957 // CommandObjectMultiwordProcess 1958 //------------------------------------------------------------------------- 1959 1960 CommandObjectMultiwordProcess::CommandObjectMultiwordProcess (CommandInterpreter &interpreter) : 1961 CommandObjectMultiword (interpreter, 1962 "process", 1963 "A set of commands for operating on a process.", 1964 "process <subcommand> [<subcommand-options>]") 1965 { 1966 LoadSubCommand ("attach", CommandObjectSP (new CommandObjectProcessAttach (interpreter))); 1967 LoadSubCommand ("launch", CommandObjectSP (new CommandObjectProcessLaunch (interpreter))); 1968 LoadSubCommand ("continue", CommandObjectSP (new CommandObjectProcessContinue (interpreter))); 1969 LoadSubCommand ("connect", CommandObjectSP (new CommandObjectProcessConnect (interpreter))); 1970 LoadSubCommand ("detach", CommandObjectSP (new CommandObjectProcessDetach (interpreter))); 1971 LoadSubCommand ("load", CommandObjectSP (new CommandObjectProcessLoad (interpreter))); 1972 LoadSubCommand ("unload", CommandObjectSP (new CommandObjectProcessUnload (interpreter))); 1973 LoadSubCommand ("signal", CommandObjectSP (new CommandObjectProcessSignal (interpreter))); 1974 LoadSubCommand ("handle", CommandObjectSP (new CommandObjectProcessHandle (interpreter))); 1975 LoadSubCommand ("status", CommandObjectSP (new CommandObjectProcessStatus (interpreter))); 1976 LoadSubCommand ("interrupt", CommandObjectSP (new CommandObjectProcessInterrupt (interpreter))); 1977 LoadSubCommand ("kill", CommandObjectSP (new CommandObjectProcessKill (interpreter))); 1978 LoadSubCommand ("plugin", CommandObjectSP (new CommandObjectProcessPlugin (interpreter))); 1979 LoadSubCommand ("save-core", CommandObjectSP (new CommandObjectProcessSaveCore (interpreter))); 1980 } 1981 1982 CommandObjectMultiwordProcess::~CommandObjectMultiwordProcess () 1983 { 1984 } 1985 1986