1 //===-- CommandObjectWatchpointCommand.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 // C Includes 11 // C++ Includes 12 #include <vector> 13 14 // Other libraries and framework includes 15 // Project includes 16 #include "CommandObjectWatchpoint.h" 17 #include "CommandObjectWatchpointCommand.h" 18 #include "lldb/Breakpoint/StoppointCallbackContext.h" 19 #include "lldb/Breakpoint/Watchpoint.h" 20 #include "lldb/Core/IOHandler.h" 21 #include "lldb/Core/State.h" 22 #include "lldb/Interpreter/CommandInterpreter.h" 23 #include "lldb/Interpreter/CommandReturnObject.h" 24 #include "lldb/Target/Target.h" 25 #include "lldb/Target/Thread.h" 26 27 using namespace lldb; 28 using namespace lldb_private; 29 30 //------------------------------------------------------------------------- 31 // CommandObjectWatchpointCommandAdd 32 //------------------------------------------------------------------------- 33 34 // FIXME: "script-type" needs to have its contents determined dynamically, so 35 // somebody can add a new scripting 36 // language to lldb and have it pickable here without having to change this 37 // enumeration by hand and rebuild lldb proper. 38 39 static OptionEnumValueElement g_script_option_enumeration[4] = { 40 {eScriptLanguageNone, "command", 41 "Commands are in the lldb command interpreter language"}, 42 {eScriptLanguagePython, "python", "Commands are in the Python language."}, 43 {eSortOrderByName, "default-script", 44 "Commands are in the default scripting language."}, 45 {0, nullptr, nullptr}}; 46 47 static OptionDefinition g_watchpoint_command_add_options[] = { 48 // clang-format off 49 { LLDB_OPT_SET_1, false, "one-liner", 'o', OptionParser::eRequiredArgument, nullptr, nullptr, 0, eArgTypeOneLiner, "Specify a one-line watchpoint command inline. Be sure to surround it with quotes." }, 50 { LLDB_OPT_SET_ALL, false, "stop-on-error", 'e', OptionParser::eRequiredArgument, nullptr, nullptr, 0, eArgTypeBoolean, "Specify whether watchpoint command execution should terminate on error." }, 51 { LLDB_OPT_SET_ALL, false, "script-type", 's', OptionParser::eRequiredArgument, nullptr, g_script_option_enumeration, 0, eArgTypeNone, "Specify the language for the commands - if none is specified, the lldb command interpreter will be used." }, 52 { LLDB_OPT_SET_2, false, "python-function", 'F', OptionParser::eRequiredArgument, nullptr, nullptr, 0, eArgTypePythonFunction, "Give the name of a Python function to run as command for this watchpoint. Be sure to give a module name if appropriate." } 53 // clang-format on 54 }; 55 56 class CommandObjectWatchpointCommandAdd : public CommandObjectParsed, 57 public IOHandlerDelegateMultiline { 58 public: 59 CommandObjectWatchpointCommandAdd(CommandInterpreter &interpreter) 60 : CommandObjectParsed(interpreter, "add", 61 "Add a set of LLDB commands to a watchpoint, to be " 62 "executed whenever the watchpoint is hit.", 63 nullptr), 64 IOHandlerDelegateMultiline("DONE", 65 IOHandlerDelegate::Completion::LLDBCommand), 66 m_options() { 67 SetHelpLong( 68 R"( 69 General information about entering watchpoint commands 70 ------------------------------------------------------ 71 72 )" 73 "This command will prompt for commands to be executed when the specified \ 74 watchpoint is hit. Each command is typed on its own line following the '> ' \ 75 prompt until 'DONE' is entered." 76 R"( 77 78 )" 79 "Syntactic errors may not be detected when initially entered, and many \ 80 malformed commands can silently fail when executed. If your watchpoint commands \ 81 do not appear to be executing, double-check the command syntax." 82 R"( 83 84 )" 85 "Note: You may enter any debugger command exactly as you would at the debugger \ 86 prompt. There is no limit to the number of commands supplied, but do NOT enter \ 87 more than one command per line." 88 R"( 89 90 Special information about PYTHON watchpoint commands 91 ---------------------------------------------------- 92 93 )" 94 "You may enter either one or more lines of Python, including function \ 95 definitions or calls to functions that will have been imported by the time \ 96 the code executes. Single line watchpoint commands will be interpreted 'as is' \ 97 when the watchpoint is hit. Multiple lines of Python will be wrapped in a \ 98 generated function, and a call to the function will be attached to the watchpoint." 99 R"( 100 101 This auto-generated function is passed in three arguments: 102 103 frame: an lldb.SBFrame object for the frame which hit the watchpoint. 104 105 wp: the watchpoint that was hit. 106 107 )" 108 "When specifying a python function with the --python-function option, you need \ 109 to supply the function name prepended by the module name:" 110 R"( 111 112 --python-function myutils.watchpoint_callback 113 114 The function itself must have the following prototype: 115 116 def watchpoint_callback(frame, wp): 117 # Your code goes here 118 119 )" 120 "The arguments are the same as the arguments passed to generated functions as \ 121 described above. Note that the global variable 'lldb.frame' will NOT be updated when \ 122 this function is called, so be sure to use the 'frame' argument. The 'frame' argument \ 123 can get you to the thread via frame.GetThread(), the thread can get you to the \ 124 process via thread.GetProcess(), and the process can get you back to the target \ 125 via process.GetTarget()." 126 R"( 127 128 )" 129 "Important Note: As Python code gets collected into functions, access to global \ 130 variables requires explicit scoping using the 'global' keyword. Be sure to use correct \ 131 Python syntax, including indentation, when entering Python watchpoint commands." 132 R"( 133 134 Example Python one-line watchpoint command: 135 136 (lldb) watchpoint command add -s python 1 137 Enter your Python command(s). Type 'DONE' to end. 138 > print "Hit this watchpoint!" 139 > DONE 140 141 As a convenience, this also works for a short Python one-liner: 142 143 (lldb) watchpoint command add -s python 1 -o 'import time; print time.asctime()' 144 (lldb) run 145 Launching '.../a.out' (x86_64) 146 (lldb) Fri Sep 10 12:17:45 2010 147 Process 21778 Stopped 148 * thread #1: tid = 0x2e03, 0x0000000100000de8 a.out`c + 7 at main.c:39, stop reason = watchpoint 1.1, queue = com.apple.main-thread 149 36 150 37 int c(int val) 151 38 { 152 39 -> return val + 3; 153 40 } 154 41 155 42 int main (int argc, char const *argv[]) 156 157 Example multiple line Python watchpoint command, using function definition: 158 159 (lldb) watchpoint command add -s python 1 160 Enter your Python command(s). Type 'DONE' to end. 161 > def watchpoint_output (wp_no): 162 > out_string = "Hit watchpoint number " + repr (wp_no) 163 > print out_string 164 > return True 165 > watchpoint_output (1) 166 > DONE 167 168 Example multiple line Python watchpoint command, using 'loose' Python: 169 170 (lldb) watchpoint command add -s p 1 171 Enter your Python command(s). Type 'DONE' to end. 172 > global wp_count 173 > wp_count = wp_count + 1 174 > print "Hit this watchpoint " + repr(wp_count) + " times!" 175 > DONE 176 177 )" 178 "In this case, since there is a reference to a global variable, \ 179 'wp_count', you will also need to make sure 'wp_count' exists and is \ 180 initialized:" 181 R"( 182 183 (lldb) script 184 >>> wp_count = 0 185 >>> quit() 186 187 )" 188 "Final Note: A warning that no watchpoint command was generated when there \ 189 are no syntax errors may indicate that a function was declared but never called."); 190 191 CommandArgumentEntry arg; 192 CommandArgumentData wp_id_arg; 193 194 // Define the first (and only) variant of this arg. 195 wp_id_arg.arg_type = eArgTypeWatchpointID; 196 wp_id_arg.arg_repetition = eArgRepeatPlain; 197 198 // There is only one variant this argument could be; put it into the 199 // argument entry. 200 arg.push_back(wp_id_arg); 201 202 // Push the data for the first argument into the m_arguments vector. 203 m_arguments.push_back(arg); 204 } 205 206 ~CommandObjectWatchpointCommandAdd() override = default; 207 208 Options *GetOptions() override { return &m_options; } 209 210 void IOHandlerActivated(IOHandler &io_handler) override { 211 StreamFileSP output_sp(io_handler.GetOutputStreamFile()); 212 if (output_sp) { 213 output_sp->PutCString( 214 "Enter your debugger command(s). Type 'DONE' to end.\n"); 215 output_sp->Flush(); 216 } 217 } 218 219 void IOHandlerInputComplete(IOHandler &io_handler, 220 std::string &line) override { 221 io_handler.SetIsDone(true); 222 223 // The WatchpointOptions object is owned by the watchpoint or watchpoint 224 // location 225 WatchpointOptions *wp_options = 226 (WatchpointOptions *)io_handler.GetUserData(); 227 if (wp_options) { 228 std::unique_ptr<WatchpointOptions::CommandData> data_ap( 229 new WatchpointOptions::CommandData()); 230 if (data_ap) { 231 data_ap->user_source.SplitIntoLines(line); 232 auto baton_sp = std::make_shared<WatchpointOptions::CommandBaton>( 233 std::move(data_ap)); 234 wp_options->SetCallback(WatchpointOptionsCallbackFunction, baton_sp); 235 } 236 } 237 } 238 239 void CollectDataForWatchpointCommandCallback(WatchpointOptions *wp_options, 240 CommandReturnObject &result) { 241 m_interpreter.GetLLDBCommandsFromIOHandler( 242 "> ", // Prompt 243 *this, // IOHandlerDelegate 244 true, // Run IOHandler in async mode 245 wp_options); // Baton for the "io_handler" that will be passed back into 246 // our IOHandlerDelegate functions 247 } 248 249 /// Set a one-liner as the callback for the watchpoint. 250 void SetWatchpointCommandCallback(WatchpointOptions *wp_options, 251 const char *oneliner) { 252 std::unique_ptr<WatchpointOptions::CommandData> data_ap( 253 new WatchpointOptions::CommandData()); 254 255 // It's necessary to set both user_source and script_source to the oneliner. 256 // The former is used to generate callback description (as in watchpoint 257 // command list) 258 // while the latter is used for Python to interpret during the actual 259 // callback. 260 data_ap->user_source.AppendString(oneliner); 261 data_ap->script_source.assign(oneliner); 262 data_ap->stop_on_error = m_options.m_stop_on_error; 263 264 auto baton_sp = 265 std::make_shared<WatchpointOptions::CommandBaton>(std::move(data_ap)); 266 wp_options->SetCallback(WatchpointOptionsCallbackFunction, baton_sp); 267 } 268 269 static bool 270 WatchpointOptionsCallbackFunction(void *baton, 271 StoppointCallbackContext *context, 272 lldb::user_id_t watch_id) { 273 bool ret_value = true; 274 if (baton == nullptr) 275 return true; 276 277 WatchpointOptions::CommandData *data = 278 (WatchpointOptions::CommandData *)baton; 279 StringList &commands = data->user_source; 280 281 if (commands.GetSize() > 0) { 282 ExecutionContext exe_ctx(context->exe_ctx_ref); 283 Target *target = exe_ctx.GetTargetPtr(); 284 if (target) { 285 CommandReturnObject result; 286 Debugger &debugger = target->GetDebugger(); 287 // Rig up the results secondary output stream to the debugger's, so the 288 // output will come out synchronously 289 // if the debugger is set up that way. 290 291 StreamSP output_stream(debugger.GetAsyncOutputStream()); 292 StreamSP error_stream(debugger.GetAsyncErrorStream()); 293 result.SetImmediateOutputStream(output_stream); 294 result.SetImmediateErrorStream(error_stream); 295 296 CommandInterpreterRunOptions options; 297 options.SetStopOnContinue(true); 298 options.SetStopOnError(data->stop_on_error); 299 options.SetEchoCommands(false); 300 options.SetPrintResults(true); 301 options.SetAddToHistory(false); 302 303 debugger.GetCommandInterpreter().HandleCommands(commands, &exe_ctx, 304 options, result); 305 result.GetImmediateOutputStream()->Flush(); 306 result.GetImmediateErrorStream()->Flush(); 307 } 308 } 309 return ret_value; 310 } 311 312 class CommandOptions : public Options { 313 public: 314 CommandOptions() 315 : Options(), m_use_commands(false), m_use_script_language(false), 316 m_script_language(eScriptLanguageNone), m_use_one_liner(false), 317 m_one_liner(), m_function_name() {} 318 319 ~CommandOptions() override = default; 320 321 Error SetOptionValue(uint32_t option_idx, const char *option_arg, 322 ExecutionContext *execution_context) override { 323 Error error; 324 const int short_option = m_getopt_table[option_idx].val; 325 326 switch (short_option) { 327 case 'o': 328 m_use_one_liner = true; 329 m_one_liner = option_arg; 330 break; 331 332 case 's': 333 m_script_language = (lldb::ScriptLanguage)Args::StringToOptionEnum( 334 option_arg, GetDefinitions()[option_idx].enum_values, 335 eScriptLanguageNone, error); 336 337 m_use_script_language = (m_script_language == eScriptLanguagePython || 338 m_script_language == eScriptLanguageDefault); 339 break; 340 341 case 'e': { 342 bool success = false; 343 m_stop_on_error = Args::StringToBoolean( 344 llvm::StringRef::withNullAsEmpty(option_arg), false, &success); 345 if (!success) 346 error.SetErrorStringWithFormat( 347 "invalid value for stop-on-error: \"%s\"", option_arg); 348 } break; 349 350 case 'F': 351 m_use_one_liner = false; 352 m_use_script_language = true; 353 m_function_name.assign(option_arg); 354 break; 355 356 default: 357 break; 358 } 359 return error; 360 } 361 362 void OptionParsingStarting(ExecutionContext *execution_context) override { 363 m_use_commands = true; 364 m_use_script_language = false; 365 m_script_language = eScriptLanguageNone; 366 367 m_use_one_liner = false; 368 m_stop_on_error = true; 369 m_one_liner.clear(); 370 m_function_name.clear(); 371 } 372 373 llvm::ArrayRef<OptionDefinition> GetDefinitions() override { 374 return g_watchpoint_command_add_options; 375 } 376 377 // Instance variables to hold the values for command options. 378 379 bool m_use_commands; 380 bool m_use_script_language; 381 lldb::ScriptLanguage m_script_language; 382 383 // Instance variables to hold the values for one_liner options. 384 bool m_use_one_liner; 385 std::string m_one_liner; 386 bool m_stop_on_error; 387 std::string m_function_name; 388 }; 389 390 protected: 391 bool DoExecute(Args &command, CommandReturnObject &result) override { 392 Target *target = m_interpreter.GetDebugger().GetSelectedTarget().get(); 393 394 if (target == nullptr) { 395 result.AppendError("There is not a current executable; there are no " 396 "watchpoints to which to add commands"); 397 result.SetStatus(eReturnStatusFailed); 398 return false; 399 } 400 401 const WatchpointList &watchpoints = target->GetWatchpointList(); 402 size_t num_watchpoints = watchpoints.GetSize(); 403 404 if (num_watchpoints == 0) { 405 result.AppendError("No watchpoints exist to have commands added"); 406 result.SetStatus(eReturnStatusFailed); 407 return false; 408 } 409 410 if (!m_options.m_use_script_language && 411 !m_options.m_function_name.empty()) { 412 result.AppendError("need to enable scripting to have a function run as a " 413 "watchpoint command"); 414 result.SetStatus(eReturnStatusFailed); 415 return false; 416 } 417 418 std::vector<uint32_t> valid_wp_ids; 419 if (!CommandObjectMultiwordWatchpoint::VerifyWatchpointIDs(target, command, 420 valid_wp_ids)) { 421 result.AppendError("Invalid watchpoints specification."); 422 result.SetStatus(eReturnStatusFailed); 423 return false; 424 } 425 426 result.SetStatus(eReturnStatusSuccessFinishNoResult); 427 const size_t count = valid_wp_ids.size(); 428 for (size_t i = 0; i < count; ++i) { 429 uint32_t cur_wp_id = valid_wp_ids.at(i); 430 if (cur_wp_id != LLDB_INVALID_WATCH_ID) { 431 Watchpoint *wp = target->GetWatchpointList().FindByID(cur_wp_id).get(); 432 // Sanity check wp first. 433 if (wp == nullptr) 434 continue; 435 436 WatchpointOptions *wp_options = wp->GetOptions(); 437 // Skip this watchpoint if wp_options is not good. 438 if (wp_options == nullptr) 439 continue; 440 441 // If we are using script language, get the script interpreter 442 // in order to set or collect command callback. Otherwise, call 443 // the methods associated with this object. 444 if (m_options.m_use_script_language) { 445 // Special handling for one-liner specified inline. 446 if (m_options.m_use_one_liner) { 447 m_interpreter.GetScriptInterpreter()->SetWatchpointCommandCallback( 448 wp_options, m_options.m_one_liner.c_str()); 449 } 450 // Special handling for using a Python function by name 451 // instead of extending the watchpoint callback data structures, we 452 // just automatize 453 // what the user would do manually: make their watchpoint command be a 454 // function call 455 else if (!m_options.m_function_name.empty()) { 456 std::string oneliner(m_options.m_function_name); 457 oneliner += "(frame, wp, internal_dict)"; 458 m_interpreter.GetScriptInterpreter()->SetWatchpointCommandCallback( 459 wp_options, oneliner.c_str()); 460 } else { 461 m_interpreter.GetScriptInterpreter() 462 ->CollectDataForWatchpointCommandCallback(wp_options, result); 463 } 464 } else { 465 // Special handling for one-liner specified inline. 466 if (m_options.m_use_one_liner) 467 SetWatchpointCommandCallback(wp_options, 468 m_options.m_one_liner.c_str()); 469 else 470 CollectDataForWatchpointCommandCallback(wp_options, result); 471 } 472 } 473 } 474 475 return result.Succeeded(); 476 } 477 478 private: 479 CommandOptions m_options; 480 }; 481 482 //------------------------------------------------------------------------- 483 // CommandObjectWatchpointCommandDelete 484 //------------------------------------------------------------------------- 485 486 class CommandObjectWatchpointCommandDelete : public CommandObjectParsed { 487 public: 488 CommandObjectWatchpointCommandDelete(CommandInterpreter &interpreter) 489 : CommandObjectParsed(interpreter, "delete", 490 "Delete the set of commands from a watchpoint.", 491 nullptr) { 492 CommandArgumentEntry arg; 493 CommandArgumentData wp_id_arg; 494 495 // Define the first (and only) variant of this arg. 496 wp_id_arg.arg_type = eArgTypeWatchpointID; 497 wp_id_arg.arg_repetition = eArgRepeatPlain; 498 499 // There is only one variant this argument could be; put it into the 500 // argument entry. 501 arg.push_back(wp_id_arg); 502 503 // Push the data for the first argument into the m_arguments vector. 504 m_arguments.push_back(arg); 505 } 506 507 ~CommandObjectWatchpointCommandDelete() override = default; 508 509 protected: 510 bool DoExecute(Args &command, CommandReturnObject &result) override { 511 Target *target = m_interpreter.GetDebugger().GetSelectedTarget().get(); 512 513 if (target == nullptr) { 514 result.AppendError("There is not a current executable; there are no " 515 "watchpoints from which to delete commands"); 516 result.SetStatus(eReturnStatusFailed); 517 return false; 518 } 519 520 const WatchpointList &watchpoints = target->GetWatchpointList(); 521 size_t num_watchpoints = watchpoints.GetSize(); 522 523 if (num_watchpoints == 0) { 524 result.AppendError("No watchpoints exist to have commands deleted"); 525 result.SetStatus(eReturnStatusFailed); 526 return false; 527 } 528 529 if (command.GetArgumentCount() == 0) { 530 result.AppendError( 531 "No watchpoint specified from which to delete the commands"); 532 result.SetStatus(eReturnStatusFailed); 533 return false; 534 } 535 536 std::vector<uint32_t> valid_wp_ids; 537 if (!CommandObjectMultiwordWatchpoint::VerifyWatchpointIDs(target, command, 538 valid_wp_ids)) { 539 result.AppendError("Invalid watchpoints specification."); 540 result.SetStatus(eReturnStatusFailed); 541 return false; 542 } 543 544 result.SetStatus(eReturnStatusSuccessFinishNoResult); 545 const size_t count = valid_wp_ids.size(); 546 for (size_t i = 0; i < count; ++i) { 547 uint32_t cur_wp_id = valid_wp_ids.at(i); 548 if (cur_wp_id != LLDB_INVALID_WATCH_ID) { 549 Watchpoint *wp = target->GetWatchpointList().FindByID(cur_wp_id).get(); 550 if (wp) 551 wp->ClearCallback(); 552 } else { 553 result.AppendErrorWithFormat("Invalid watchpoint ID: %u.\n", cur_wp_id); 554 result.SetStatus(eReturnStatusFailed); 555 return false; 556 } 557 } 558 return result.Succeeded(); 559 } 560 }; 561 562 //------------------------------------------------------------------------- 563 // CommandObjectWatchpointCommandList 564 //------------------------------------------------------------------------- 565 566 class CommandObjectWatchpointCommandList : public CommandObjectParsed { 567 public: 568 CommandObjectWatchpointCommandList(CommandInterpreter &interpreter) 569 : CommandObjectParsed(interpreter, "list", "List the script or set of " 570 "commands to be executed when " 571 "the watchpoint is hit.", 572 nullptr) { 573 CommandArgumentEntry arg; 574 CommandArgumentData wp_id_arg; 575 576 // Define the first (and only) variant of this arg. 577 wp_id_arg.arg_type = eArgTypeWatchpointID; 578 wp_id_arg.arg_repetition = eArgRepeatPlain; 579 580 // There is only one variant this argument could be; put it into the 581 // argument entry. 582 arg.push_back(wp_id_arg); 583 584 // Push the data for the first argument into the m_arguments vector. 585 m_arguments.push_back(arg); 586 } 587 588 ~CommandObjectWatchpointCommandList() override = default; 589 590 protected: 591 bool DoExecute(Args &command, CommandReturnObject &result) override { 592 Target *target = m_interpreter.GetDebugger().GetSelectedTarget().get(); 593 594 if (target == nullptr) { 595 result.AppendError("There is not a current executable; there are no " 596 "watchpoints for which to list commands"); 597 result.SetStatus(eReturnStatusFailed); 598 return false; 599 } 600 601 const WatchpointList &watchpoints = target->GetWatchpointList(); 602 size_t num_watchpoints = watchpoints.GetSize(); 603 604 if (num_watchpoints == 0) { 605 result.AppendError("No watchpoints exist for which to list commands"); 606 result.SetStatus(eReturnStatusFailed); 607 return false; 608 } 609 610 if (command.GetArgumentCount() == 0) { 611 result.AppendError( 612 "No watchpoint specified for which to list the commands"); 613 result.SetStatus(eReturnStatusFailed); 614 return false; 615 } 616 617 std::vector<uint32_t> valid_wp_ids; 618 if (!CommandObjectMultiwordWatchpoint::VerifyWatchpointIDs(target, command, 619 valid_wp_ids)) { 620 result.AppendError("Invalid watchpoints specification."); 621 result.SetStatus(eReturnStatusFailed); 622 return false; 623 } 624 625 result.SetStatus(eReturnStatusSuccessFinishNoResult); 626 const size_t count = valid_wp_ids.size(); 627 for (size_t i = 0; i < count; ++i) { 628 uint32_t cur_wp_id = valid_wp_ids.at(i); 629 if (cur_wp_id != LLDB_INVALID_WATCH_ID) { 630 Watchpoint *wp = target->GetWatchpointList().FindByID(cur_wp_id).get(); 631 632 if (wp) { 633 const WatchpointOptions *wp_options = wp->GetOptions(); 634 if (wp_options) { 635 // Get the callback baton associated with the current watchpoint. 636 const Baton *baton = wp_options->GetBaton(); 637 if (baton) { 638 result.GetOutputStream().Printf("Watchpoint %u:\n", cur_wp_id); 639 result.GetOutputStream().IndentMore(); 640 baton->GetDescription(&result.GetOutputStream(), 641 eDescriptionLevelFull); 642 result.GetOutputStream().IndentLess(); 643 } else { 644 result.AppendMessageWithFormat( 645 "Watchpoint %u does not have an associated command.\n", 646 cur_wp_id); 647 } 648 } 649 result.SetStatus(eReturnStatusSuccessFinishResult); 650 } else { 651 result.AppendErrorWithFormat("Invalid watchpoint ID: %u.\n", 652 cur_wp_id); 653 result.SetStatus(eReturnStatusFailed); 654 } 655 } 656 } 657 658 return result.Succeeded(); 659 } 660 }; 661 662 //------------------------------------------------------------------------- 663 // CommandObjectWatchpointCommand 664 //------------------------------------------------------------------------- 665 666 CommandObjectWatchpointCommand::CommandObjectWatchpointCommand( 667 CommandInterpreter &interpreter) 668 : CommandObjectMultiword( 669 interpreter, "command", 670 "Commands for adding, removing and examining LLDB commands " 671 "executed when the watchpoint is hit (watchpoint 'commmands').", 672 "command <sub-command> [<sub-command-options>] <watchpoint-id>") { 673 CommandObjectSP add_command_object( 674 new CommandObjectWatchpointCommandAdd(interpreter)); 675 CommandObjectSP delete_command_object( 676 new CommandObjectWatchpointCommandDelete(interpreter)); 677 CommandObjectSP list_command_object( 678 new CommandObjectWatchpointCommandList(interpreter)); 679 680 add_command_object->SetCommandName("watchpoint command add"); 681 delete_command_object->SetCommandName("watchpoint command delete"); 682 list_command_object->SetCommandName("watchpoint command list"); 683 684 LoadSubCommand("add", add_command_object); 685 LoadSubCommand("delete", delete_command_object); 686 LoadSubCommand("list", list_command_object); 687 } 688 689 CommandObjectWatchpointCommand::~CommandObjectWatchpointCommand() = default; 690