1 //===-- CommandObjectWatchpointCommand.cpp ----------------------*- C++ -*-===// 2 // 3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. 4 // See https://llvm.org/LICENSE.txt for license information. 5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception 6 // 7 //===----------------------------------------------------------------------===// 8 9 #include <vector> 10 11 #include "CommandObjectWatchpoint.h" 12 #include "CommandObjectWatchpointCommand.h" 13 #include "lldb/Breakpoint/StoppointCallbackContext.h" 14 #include "lldb/Breakpoint/Watchpoint.h" 15 #include "lldb/Core/IOHandler.h" 16 #include "lldb/Host/OptionParser.h" 17 #include "lldb/Interpreter/CommandInterpreter.h" 18 #include "lldb/Interpreter/CommandReturnObject.h" 19 #include "lldb/Interpreter/OptionArgParser.h" 20 #include "lldb/Target/Target.h" 21 #include "lldb/Target/Thread.h" 22 #include "lldb/Utility/State.h" 23 24 using namespace lldb; 25 using namespace lldb_private; 26 27 // CommandObjectWatchpointCommandAdd 28 29 // FIXME: "script-type" needs to have its contents determined dynamically, so 30 // somebody can add a new scripting 31 // language to lldb and have it pickable here without having to change this 32 // enumeration by hand and rebuild lldb proper. 33 34 static constexpr OptionEnumValueElement g_script_option_enumeration[] = { 35 {eScriptLanguageNone, "command", 36 "Commands are in the lldb command interpreter language"}, 37 {eScriptLanguagePython, "python", "Commands are in the Python language."}, 38 {eSortOrderByName, "default-script", 39 "Commands are in the default scripting language."} }; 40 41 static constexpr OptionEnumValues ScriptOptionEnum() { 42 return OptionEnumValues(g_script_option_enumeration); 43 } 44 45 static constexpr OptionDefinition g_watchpoint_command_add_options[] = { 46 #define LLDB_OPTIONS_watchpoint_command_add 47 #include "CommandOptions.inc" 48 }; 49 50 class CommandObjectWatchpointCommandAdd : public CommandObjectParsed, 51 public IOHandlerDelegateMultiline { 52 public: 53 CommandObjectWatchpointCommandAdd(CommandInterpreter &interpreter) 54 : CommandObjectParsed(interpreter, "add", 55 "Add a set of LLDB commands to a watchpoint, to be " 56 "executed whenever the watchpoint is hit.", 57 nullptr), 58 IOHandlerDelegateMultiline("DONE", 59 IOHandlerDelegate::Completion::LLDBCommand), 60 m_options() { 61 SetHelpLong( 62 R"( 63 General information about entering watchpoint commands 64 ------------------------------------------------------ 65 66 )" 67 "This command will prompt for commands to be executed when the specified \ 68 watchpoint is hit. Each command is typed on its own line following the '> ' \ 69 prompt until 'DONE' is entered." 70 R"( 71 72 )" 73 "Syntactic errors may not be detected when initially entered, and many \ 74 malformed commands can silently fail when executed. If your watchpoint commands \ 75 do not appear to be executing, double-check the command syntax." 76 R"( 77 78 )" 79 "Note: You may enter any debugger command exactly as you would at the debugger \ 80 prompt. There is no limit to the number of commands supplied, but do NOT enter \ 81 more than one command per line." 82 R"( 83 84 Special information about PYTHON watchpoint commands 85 ---------------------------------------------------- 86 87 )" 88 "You may enter either one or more lines of Python, including function \ 89 definitions or calls to functions that will have been imported by the time \ 90 the code executes. Single line watchpoint commands will be interpreted 'as is' \ 91 when the watchpoint is hit. Multiple lines of Python will be wrapped in a \ 92 generated function, and a call to the function will be attached to the watchpoint." 93 R"( 94 95 This auto-generated function is passed in three arguments: 96 97 frame: an lldb.SBFrame object for the frame which hit the watchpoint. 98 99 wp: the watchpoint that was hit. 100 101 )" 102 "When specifying a python function with the --python-function option, you need \ 103 to supply the function name prepended by the module name:" 104 R"( 105 106 --python-function myutils.watchpoint_callback 107 108 The function itself must have the following prototype: 109 110 def watchpoint_callback(frame, wp): 111 # Your code goes here 112 113 )" 114 "The arguments are the same as the arguments passed to generated functions as \ 115 described above. Note that the global variable 'lldb.frame' will NOT be updated when \ 116 this function is called, so be sure to use the 'frame' argument. The 'frame' argument \ 117 can get you to the thread via frame.GetThread(), the thread can get you to the \ 118 process via thread.GetProcess(), and the process can get you back to the target \ 119 via process.GetTarget()." 120 R"( 121 122 )" 123 "Important Note: As Python code gets collected into functions, access to global \ 124 variables requires explicit scoping using the 'global' keyword. Be sure to use correct \ 125 Python syntax, including indentation, when entering Python watchpoint commands." 126 R"( 127 128 Example Python one-line watchpoint command: 129 130 (lldb) watchpoint command add -s python 1 131 Enter your Python command(s). Type 'DONE' to end. 132 > print "Hit this watchpoint!" 133 > DONE 134 135 As a convenience, this also works for a short Python one-liner: 136 137 (lldb) watchpoint command add -s python 1 -o 'import time; print time.asctime()' 138 (lldb) run 139 Launching '.../a.out' (x86_64) 140 (lldb) Fri Sep 10 12:17:45 2010 141 Process 21778 Stopped 142 * thread #1: tid = 0x2e03, 0x0000000100000de8 a.out`c + 7 at main.c:39, stop reason = watchpoint 1.1, queue = com.apple.main-thread 143 36 144 37 int c(int val) 145 38 { 146 39 -> return val + 3; 147 40 } 148 41 149 42 int main (int argc, char const *argv[]) 150 151 Example multiple line Python watchpoint command, using function definition: 152 153 (lldb) watchpoint command add -s python 1 154 Enter your Python command(s). Type 'DONE' to end. 155 > def watchpoint_output (wp_no): 156 > out_string = "Hit watchpoint number " + repr (wp_no) 157 > print out_string 158 > return True 159 > watchpoint_output (1) 160 > DONE 161 162 Example multiple line Python watchpoint command, using 'loose' Python: 163 164 (lldb) watchpoint command add -s p 1 165 Enter your Python command(s). Type 'DONE' to end. 166 > global wp_count 167 > wp_count = wp_count + 1 168 > print "Hit this watchpoint " + repr(wp_count) + " times!" 169 > DONE 170 171 )" 172 "In this case, since there is a reference to a global variable, \ 173 'wp_count', you will also need to make sure 'wp_count' exists and is \ 174 initialized:" 175 R"( 176 177 (lldb) script 178 >>> wp_count = 0 179 >>> quit() 180 181 )" 182 "Final Note: A warning that no watchpoint command was generated when there \ 183 are no syntax errors may indicate that a function was declared but never called."); 184 185 CommandArgumentEntry arg; 186 CommandArgumentData wp_id_arg; 187 188 // Define the first (and only) variant of this arg. 189 wp_id_arg.arg_type = eArgTypeWatchpointID; 190 wp_id_arg.arg_repetition = eArgRepeatPlain; 191 192 // There is only one variant this argument could be; put it into the 193 // argument entry. 194 arg.push_back(wp_id_arg); 195 196 // Push the data for the first argument into the m_arguments vector. 197 m_arguments.push_back(arg); 198 } 199 200 ~CommandObjectWatchpointCommandAdd() override = default; 201 202 Options *GetOptions() override { return &m_options; } 203 204 void IOHandlerActivated(IOHandler &io_handler, bool interactive) override { 205 StreamFileSP output_sp(io_handler.GetOutputStreamFile()); 206 if (output_sp && interactive) { 207 output_sp->PutCString( 208 "Enter your debugger command(s). Type 'DONE' to end.\n"); 209 output_sp->Flush(); 210 } 211 } 212 213 void IOHandlerInputComplete(IOHandler &io_handler, 214 std::string &line) override { 215 io_handler.SetIsDone(true); 216 217 // The WatchpointOptions object is owned by the watchpoint or watchpoint 218 // location 219 WatchpointOptions *wp_options = 220 (WatchpointOptions *)io_handler.GetUserData(); 221 if (wp_options) { 222 std::unique_ptr<WatchpointOptions::CommandData> data_up( 223 new WatchpointOptions::CommandData()); 224 if (data_up) { 225 data_up->user_source.SplitIntoLines(line); 226 auto baton_sp = std::make_shared<WatchpointOptions::CommandBaton>( 227 std::move(data_up)); 228 wp_options->SetCallback(WatchpointOptionsCallbackFunction, baton_sp); 229 } 230 } 231 } 232 233 void CollectDataForWatchpointCommandCallback(WatchpointOptions *wp_options, 234 CommandReturnObject &result) { 235 m_interpreter.GetLLDBCommandsFromIOHandler( 236 "> ", // Prompt 237 *this, // IOHandlerDelegate 238 true, // Run IOHandler in async mode 239 wp_options); // Baton for the "io_handler" that will be passed back into 240 // our IOHandlerDelegate functions 241 } 242 243 /// Set a one-liner as the callback for the watchpoint. 244 void SetWatchpointCommandCallback(WatchpointOptions *wp_options, 245 const char *oneliner) { 246 std::unique_ptr<WatchpointOptions::CommandData> data_up( 247 new WatchpointOptions::CommandData()); 248 249 // It's necessary to set both user_source and script_source to the 250 // oneliner. The former is used to generate callback description (as in 251 // watchpoint command list) while the latter is used for Python to 252 // interpret during the actual callback. 253 data_up->user_source.AppendString(oneliner); 254 data_up->script_source.assign(oneliner); 255 data_up->stop_on_error = m_options.m_stop_on_error; 256 257 auto baton_sp = 258 std::make_shared<WatchpointOptions::CommandBaton>(std::move(data_up)); 259 wp_options->SetCallback(WatchpointOptionsCallbackFunction, baton_sp); 260 } 261 262 static bool 263 WatchpointOptionsCallbackFunction(void *baton, 264 StoppointCallbackContext *context, 265 lldb::user_id_t watch_id) { 266 bool ret_value = true; 267 if (baton == nullptr) 268 return true; 269 270 WatchpointOptions::CommandData *data = 271 (WatchpointOptions::CommandData *)baton; 272 StringList &commands = data->user_source; 273 274 if (commands.GetSize() > 0) { 275 ExecutionContext exe_ctx(context->exe_ctx_ref); 276 Target *target = exe_ctx.GetTargetPtr(); 277 if (target) { 278 CommandReturnObject result; 279 Debugger &debugger = target->GetDebugger(); 280 // Rig up the results secondary output stream to the debugger's, so the 281 // output will come out synchronously if the debugger is set up that 282 // way. 283 284 StreamSP output_stream(debugger.GetAsyncOutputStream()); 285 StreamSP error_stream(debugger.GetAsyncErrorStream()); 286 result.SetImmediateOutputStream(output_stream); 287 result.SetImmediateErrorStream(error_stream); 288 289 CommandInterpreterRunOptions options; 290 options.SetStopOnContinue(true); 291 options.SetStopOnError(data->stop_on_error); 292 options.SetEchoCommands(false); 293 options.SetPrintResults(true); 294 options.SetPrintErrors(true); 295 options.SetAddToHistory(false); 296 297 debugger.GetCommandInterpreter().HandleCommands(commands, &exe_ctx, 298 options, result); 299 result.GetImmediateOutputStream()->Flush(); 300 result.GetImmediateErrorStream()->Flush(); 301 } 302 } 303 return ret_value; 304 } 305 306 class CommandOptions : public Options { 307 public: 308 CommandOptions() 309 : Options(), m_use_commands(false), m_use_script_language(false), 310 m_script_language(eScriptLanguageNone), m_use_one_liner(false), 311 m_one_liner(), m_function_name() {} 312 313 ~CommandOptions() override = default; 314 315 Status SetOptionValue(uint32_t option_idx, llvm::StringRef option_arg, 316 ExecutionContext *execution_context) override { 317 Status error; 318 const int short_option = m_getopt_table[option_idx].val; 319 320 switch (short_option) { 321 case 'o': 322 m_use_one_liner = true; 323 m_one_liner = option_arg; 324 break; 325 326 case 's': 327 m_script_language = (lldb::ScriptLanguage)OptionArgParser::ToOptionEnum( 328 option_arg, GetDefinitions()[option_idx].enum_values, 329 eScriptLanguageNone, error); 330 331 m_use_script_language = (m_script_language == eScriptLanguagePython || 332 m_script_language == eScriptLanguageDefault); 333 break; 334 335 case 'e': { 336 bool success = false; 337 m_stop_on_error = 338 OptionArgParser::ToBoolean(option_arg, false, &success); 339 if (!success) 340 error.SetErrorStringWithFormat( 341 "invalid value for stop-on-error: \"%s\"", 342 option_arg.str().c_str()); 343 } break; 344 345 case 'F': 346 m_use_one_liner = false; 347 m_use_script_language = true; 348 m_function_name.assign(option_arg); 349 break; 350 351 default: 352 break; 353 } 354 return error; 355 } 356 357 void OptionParsingStarting(ExecutionContext *execution_context) override { 358 m_use_commands = true; 359 m_use_script_language = false; 360 m_script_language = eScriptLanguageNone; 361 362 m_use_one_liner = false; 363 m_stop_on_error = true; 364 m_one_liner.clear(); 365 m_function_name.clear(); 366 } 367 368 llvm::ArrayRef<OptionDefinition> GetDefinitions() override { 369 return llvm::makeArrayRef(g_watchpoint_command_add_options); 370 } 371 372 // Instance variables to hold the values for command options. 373 374 bool m_use_commands; 375 bool m_use_script_language; 376 lldb::ScriptLanguage m_script_language; 377 378 // Instance variables to hold the values for one_liner options. 379 bool m_use_one_liner; 380 std::string m_one_liner; 381 bool m_stop_on_error; 382 std::string m_function_name; 383 }; 384 385 protected: 386 bool DoExecute(Args &command, CommandReturnObject &result) override { 387 Target *target = GetDebugger().GetSelectedTarget().get(); 388 389 if (target == nullptr) { 390 result.AppendError("There is not a current executable; there are no " 391 "watchpoints to which to add commands"); 392 result.SetStatus(eReturnStatusFailed); 393 return false; 394 } 395 396 const WatchpointList &watchpoints = target->GetWatchpointList(); 397 size_t num_watchpoints = watchpoints.GetSize(); 398 399 if (num_watchpoints == 0) { 400 result.AppendError("No watchpoints exist to have commands added"); 401 result.SetStatus(eReturnStatusFailed); 402 return false; 403 } 404 405 if (!m_options.m_use_script_language && 406 !m_options.m_function_name.empty()) { 407 result.AppendError("need to enable scripting to have a function run as a " 408 "watchpoint command"); 409 result.SetStatus(eReturnStatusFailed); 410 return false; 411 } 412 413 std::vector<uint32_t> valid_wp_ids; 414 if (!CommandObjectMultiwordWatchpoint::VerifyWatchpointIDs(target, command, 415 valid_wp_ids)) { 416 result.AppendError("Invalid watchpoints specification."); 417 result.SetStatus(eReturnStatusFailed); 418 return false; 419 } 420 421 result.SetStatus(eReturnStatusSuccessFinishNoResult); 422 const size_t count = valid_wp_ids.size(); 423 for (size_t i = 0; i < count; ++i) { 424 uint32_t cur_wp_id = valid_wp_ids.at(i); 425 if (cur_wp_id != LLDB_INVALID_WATCH_ID) { 426 Watchpoint *wp = target->GetWatchpointList().FindByID(cur_wp_id).get(); 427 // Sanity check wp first. 428 if (wp == nullptr) 429 continue; 430 431 WatchpointOptions *wp_options = wp->GetOptions(); 432 // Skip this watchpoint if wp_options is not good. 433 if (wp_options == nullptr) 434 continue; 435 436 // If we are using script language, get the script interpreter in order 437 // to set or collect command callback. Otherwise, call the methods 438 // associated with this object. 439 if (m_options.m_use_script_language) { 440 // Special handling for one-liner specified inline. 441 if (m_options.m_use_one_liner) { 442 GetDebugger().GetScriptInterpreter()->SetWatchpointCommandCallback( 443 wp_options, m_options.m_one_liner.c_str()); 444 } 445 // Special handling for using a Python function by name instead of 446 // extending the watchpoint callback data structures, we just 447 // automatize what the user would do manually: make their watchpoint 448 // command be a function call 449 else if (!m_options.m_function_name.empty()) { 450 std::string oneliner(m_options.m_function_name); 451 oneliner += "(frame, wp, internal_dict)"; 452 GetDebugger().GetScriptInterpreter()->SetWatchpointCommandCallback( 453 wp_options, oneliner.c_str()); 454 } else { 455 GetDebugger() 456 .GetScriptInterpreter() 457 ->CollectDataForWatchpointCommandCallback(wp_options, result); 458 } 459 } else { 460 // Special handling for one-liner specified inline. 461 if (m_options.m_use_one_liner) 462 SetWatchpointCommandCallback(wp_options, 463 m_options.m_one_liner.c_str()); 464 else 465 CollectDataForWatchpointCommandCallback(wp_options, result); 466 } 467 } 468 } 469 470 return result.Succeeded(); 471 } 472 473 private: 474 CommandOptions m_options; 475 }; 476 477 // CommandObjectWatchpointCommandDelete 478 479 class CommandObjectWatchpointCommandDelete : public CommandObjectParsed { 480 public: 481 CommandObjectWatchpointCommandDelete(CommandInterpreter &interpreter) 482 : CommandObjectParsed(interpreter, "delete", 483 "Delete the set of commands from a watchpoint.", 484 nullptr) { 485 CommandArgumentEntry arg; 486 CommandArgumentData wp_id_arg; 487 488 // Define the first (and only) variant of this arg. 489 wp_id_arg.arg_type = eArgTypeWatchpointID; 490 wp_id_arg.arg_repetition = eArgRepeatPlain; 491 492 // There is only one variant this argument could be; put it into the 493 // argument entry. 494 arg.push_back(wp_id_arg); 495 496 // Push the data for the first argument into the m_arguments vector. 497 m_arguments.push_back(arg); 498 } 499 500 ~CommandObjectWatchpointCommandDelete() override = default; 501 502 protected: 503 bool DoExecute(Args &command, CommandReturnObject &result) override { 504 Target *target = GetDebugger().GetSelectedTarget().get(); 505 506 if (target == nullptr) { 507 result.AppendError("There is not a current executable; there are no " 508 "watchpoints from which to delete commands"); 509 result.SetStatus(eReturnStatusFailed); 510 return false; 511 } 512 513 const WatchpointList &watchpoints = target->GetWatchpointList(); 514 size_t num_watchpoints = watchpoints.GetSize(); 515 516 if (num_watchpoints == 0) { 517 result.AppendError("No watchpoints exist to have commands deleted"); 518 result.SetStatus(eReturnStatusFailed); 519 return false; 520 } 521 522 if (command.GetArgumentCount() == 0) { 523 result.AppendError( 524 "No watchpoint specified from which to delete the commands"); 525 result.SetStatus(eReturnStatusFailed); 526 return false; 527 } 528 529 std::vector<uint32_t> valid_wp_ids; 530 if (!CommandObjectMultiwordWatchpoint::VerifyWatchpointIDs(target, command, 531 valid_wp_ids)) { 532 result.AppendError("Invalid watchpoints specification."); 533 result.SetStatus(eReturnStatusFailed); 534 return false; 535 } 536 537 result.SetStatus(eReturnStatusSuccessFinishNoResult); 538 const size_t count = valid_wp_ids.size(); 539 for (size_t i = 0; i < count; ++i) { 540 uint32_t cur_wp_id = valid_wp_ids.at(i); 541 if (cur_wp_id != LLDB_INVALID_WATCH_ID) { 542 Watchpoint *wp = target->GetWatchpointList().FindByID(cur_wp_id).get(); 543 if (wp) 544 wp->ClearCallback(); 545 } else { 546 result.AppendErrorWithFormat("Invalid watchpoint ID: %u.\n", cur_wp_id); 547 result.SetStatus(eReturnStatusFailed); 548 return false; 549 } 550 } 551 return result.Succeeded(); 552 } 553 }; 554 555 // CommandObjectWatchpointCommandList 556 557 class CommandObjectWatchpointCommandList : public CommandObjectParsed { 558 public: 559 CommandObjectWatchpointCommandList(CommandInterpreter &interpreter) 560 : CommandObjectParsed(interpreter, "list", "List the script or set of " 561 "commands to be executed when " 562 "the watchpoint is hit.", 563 nullptr) { 564 CommandArgumentEntry arg; 565 CommandArgumentData wp_id_arg; 566 567 // Define the first (and only) variant of this arg. 568 wp_id_arg.arg_type = eArgTypeWatchpointID; 569 wp_id_arg.arg_repetition = eArgRepeatPlain; 570 571 // There is only one variant this argument could be; put it into the 572 // argument entry. 573 arg.push_back(wp_id_arg); 574 575 // Push the data for the first argument into the m_arguments vector. 576 m_arguments.push_back(arg); 577 } 578 579 ~CommandObjectWatchpointCommandList() override = default; 580 581 protected: 582 bool DoExecute(Args &command, CommandReturnObject &result) override { 583 Target *target = GetDebugger().GetSelectedTarget().get(); 584 585 if (target == nullptr) { 586 result.AppendError("There is not a current executable; there are no " 587 "watchpoints for which to list commands"); 588 result.SetStatus(eReturnStatusFailed); 589 return false; 590 } 591 592 const WatchpointList &watchpoints = target->GetWatchpointList(); 593 size_t num_watchpoints = watchpoints.GetSize(); 594 595 if (num_watchpoints == 0) { 596 result.AppendError("No watchpoints exist for which to list commands"); 597 result.SetStatus(eReturnStatusFailed); 598 return false; 599 } 600 601 if (command.GetArgumentCount() == 0) { 602 result.AppendError( 603 "No watchpoint specified for which to list the commands"); 604 result.SetStatus(eReturnStatusFailed); 605 return false; 606 } 607 608 std::vector<uint32_t> valid_wp_ids; 609 if (!CommandObjectMultiwordWatchpoint::VerifyWatchpointIDs(target, command, 610 valid_wp_ids)) { 611 result.AppendError("Invalid watchpoints specification."); 612 result.SetStatus(eReturnStatusFailed); 613 return false; 614 } 615 616 result.SetStatus(eReturnStatusSuccessFinishNoResult); 617 const size_t count = valid_wp_ids.size(); 618 for (size_t i = 0; i < count; ++i) { 619 uint32_t cur_wp_id = valid_wp_ids.at(i); 620 if (cur_wp_id != LLDB_INVALID_WATCH_ID) { 621 Watchpoint *wp = target->GetWatchpointList().FindByID(cur_wp_id).get(); 622 623 if (wp) { 624 const WatchpointOptions *wp_options = wp->GetOptions(); 625 if (wp_options) { 626 // Get the callback baton associated with the current watchpoint. 627 const Baton *baton = wp_options->GetBaton(); 628 if (baton) { 629 result.GetOutputStream().Printf("Watchpoint %u:\n", cur_wp_id); 630 result.GetOutputStream().IndentMore(); 631 baton->GetDescription(&result.GetOutputStream(), 632 eDescriptionLevelFull); 633 result.GetOutputStream().IndentLess(); 634 } else { 635 result.AppendMessageWithFormat( 636 "Watchpoint %u does not have an associated command.\n", 637 cur_wp_id); 638 } 639 } 640 result.SetStatus(eReturnStatusSuccessFinishResult); 641 } else { 642 result.AppendErrorWithFormat("Invalid watchpoint ID: %u.\n", 643 cur_wp_id); 644 result.SetStatus(eReturnStatusFailed); 645 } 646 } 647 } 648 649 return result.Succeeded(); 650 } 651 }; 652 653 // CommandObjectWatchpointCommand 654 655 CommandObjectWatchpointCommand::CommandObjectWatchpointCommand( 656 CommandInterpreter &interpreter) 657 : CommandObjectMultiword( 658 interpreter, "command", 659 "Commands for adding, removing and examining LLDB commands " 660 "executed when the watchpoint is hit (watchpoint 'commands').", 661 "command <sub-command> [<sub-command-options>] <watchpoint-id>") { 662 CommandObjectSP add_command_object( 663 new CommandObjectWatchpointCommandAdd(interpreter)); 664 CommandObjectSP delete_command_object( 665 new CommandObjectWatchpointCommandDelete(interpreter)); 666 CommandObjectSP list_command_object( 667 new CommandObjectWatchpointCommandList(interpreter)); 668 669 add_command_object->SetCommandName("watchpoint command add"); 670 delete_command_object->SetCommandName("watchpoint command delete"); 671 list_command_object->SetCommandName("watchpoint command list"); 672 673 LoadSubCommand("add", add_command_object); 674 LoadSubCommand("delete", delete_command_object); 675 LoadSubCommand("list", list_command_object); 676 } 677 678 CommandObjectWatchpointCommand::~CommandObjectWatchpointCommand() = default; 679