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 #include <vector> 11 12 #include "CommandObjectWatchpoint.h" 13 #include "CommandObjectWatchpointCommand.h" 14 #include "lldb/Breakpoint/StoppointCallbackContext.h" 15 #include "lldb/Breakpoint/Watchpoint.h" 16 #include "lldb/Core/IOHandler.h" 17 #include "lldb/Host/OptionParser.h" 18 #include "lldb/Interpreter/CommandInterpreter.h" 19 #include "lldb/Interpreter/CommandReturnObject.h" 20 #include "lldb/Interpreter/OptionArgParser.h" 21 #include "lldb/Target/Target.h" 22 #include "lldb/Target/Thread.h" 23 #include "lldb/Utility/State.h" 24 25 using namespace lldb; 26 using namespace lldb_private; 27 28 //------------------------------------------------------------------------- 29 // CommandObjectWatchpointCommandAdd 30 //------------------------------------------------------------------------- 31 32 // FIXME: "script-type" needs to have its contents determined dynamically, so 33 // somebody can add a new scripting 34 // language to lldb and have it pickable here without having to change this 35 // enumeration by hand and rebuild lldb proper. 36 37 static constexpr OptionEnumValueElement g_script_option_enumeration[] = { 38 {eScriptLanguageNone, "command", 39 "Commands are in the lldb command interpreter language"}, 40 {eScriptLanguagePython, "python", "Commands are in the Python language."}, 41 {eSortOrderByName, "default-script", 42 "Commands are in the default scripting language."} }; 43 44 static constexpr OptionEnumValues ScriptOptionEnum() { 45 return OptionEnumValues(g_script_option_enumeration); 46 } 47 48 static constexpr OptionDefinition g_watchpoint_command_add_options[] = { 49 // clang-format off 50 { LLDB_OPT_SET_1, false, "one-liner", 'o', OptionParser::eRequiredArgument, nullptr, {}, 0, eArgTypeOneLiner, "Specify a one-line watchpoint command inline. Be sure to surround it with quotes." }, 51 { LLDB_OPT_SET_ALL, false, "stop-on-error", 'e', OptionParser::eRequiredArgument, nullptr, {}, 0, eArgTypeBoolean, "Specify whether watchpoint command execution should terminate on error." }, 52 { LLDB_OPT_SET_ALL, false, "script-type", 's', OptionParser::eRequiredArgument, nullptr, ScriptOptionEnum(), 0, eArgTypeNone, "Specify the language for the commands - if none is specified, the lldb command interpreter will be used." }, 53 { LLDB_OPT_SET_2, false, "python-function", 'F', OptionParser::eRequiredArgument, 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." } 54 // clang-format on 55 }; 56 57 class CommandObjectWatchpointCommandAdd : public CommandObjectParsed, 58 public IOHandlerDelegateMultiline { 59 public: 60 CommandObjectWatchpointCommandAdd(CommandInterpreter &interpreter) 61 : CommandObjectParsed(interpreter, "add", 62 "Add a set of LLDB commands to a watchpoint, to be " 63 "executed whenever the watchpoint is hit.", 64 nullptr), 65 IOHandlerDelegateMultiline("DONE", 66 IOHandlerDelegate::Completion::LLDBCommand), 67 m_options() { 68 SetHelpLong( 69 R"( 70 General information about entering watchpoint commands 71 ------------------------------------------------------ 72 73 )" 74 "This command will prompt for commands to be executed when the specified \ 75 watchpoint is hit. Each command is typed on its own line following the '> ' \ 76 prompt until 'DONE' is entered." 77 R"( 78 79 )" 80 "Syntactic errors may not be detected when initially entered, and many \ 81 malformed commands can silently fail when executed. If your watchpoint commands \ 82 do not appear to be executing, double-check the command syntax." 83 R"( 84 85 )" 86 "Note: You may enter any debugger command exactly as you would at the debugger \ 87 prompt. There is no limit to the number of commands supplied, but do NOT enter \ 88 more than one command per line." 89 R"( 90 91 Special information about PYTHON watchpoint commands 92 ---------------------------------------------------- 93 94 )" 95 "You may enter either one or more lines of Python, including function \ 96 definitions or calls to functions that will have been imported by the time \ 97 the code executes. Single line watchpoint commands will be interpreted 'as is' \ 98 when the watchpoint is hit. Multiple lines of Python will be wrapped in a \ 99 generated function, and a call to the function will be attached to the watchpoint." 100 R"( 101 102 This auto-generated function is passed in three arguments: 103 104 frame: an lldb.SBFrame object for the frame which hit the watchpoint. 105 106 wp: the watchpoint that was hit. 107 108 )" 109 "When specifying a python function with the --python-function option, you need \ 110 to supply the function name prepended by the module name:" 111 R"( 112 113 --python-function myutils.watchpoint_callback 114 115 The function itself must have the following prototype: 116 117 def watchpoint_callback(frame, wp): 118 # Your code goes here 119 120 )" 121 "The arguments are the same as the arguments passed to generated functions as \ 122 described above. Note that the global variable 'lldb.frame' will NOT be updated when \ 123 this function is called, so be sure to use the 'frame' argument. The 'frame' argument \ 124 can get you to the thread via frame.GetThread(), the thread can get you to the \ 125 process via thread.GetProcess(), and the process can get you back to the target \ 126 via process.GetTarget()." 127 R"( 128 129 )" 130 "Important Note: As Python code gets collected into functions, access to global \ 131 variables requires explicit scoping using the 'global' keyword. Be sure to use correct \ 132 Python syntax, including indentation, when entering Python watchpoint commands." 133 R"( 134 135 Example Python one-line watchpoint command: 136 137 (lldb) watchpoint command add -s python 1 138 Enter your Python command(s). Type 'DONE' to end. 139 > print "Hit this watchpoint!" 140 > DONE 141 142 As a convenience, this also works for a short Python one-liner: 143 144 (lldb) watchpoint command add -s python 1 -o 'import time; print time.asctime()' 145 (lldb) run 146 Launching '.../a.out' (x86_64) 147 (lldb) Fri Sep 10 12:17:45 2010 148 Process 21778 Stopped 149 * thread #1: tid = 0x2e03, 0x0000000100000de8 a.out`c + 7 at main.c:39, stop reason = watchpoint 1.1, queue = com.apple.main-thread 150 36 151 37 int c(int val) 152 38 { 153 39 -> return val + 3; 154 40 } 155 41 156 42 int main (int argc, char const *argv[]) 157 158 Example multiple line Python watchpoint command, using function definition: 159 160 (lldb) watchpoint command add -s python 1 161 Enter your Python command(s). Type 'DONE' to end. 162 > def watchpoint_output (wp_no): 163 > out_string = "Hit watchpoint number " + repr (wp_no) 164 > print out_string 165 > return True 166 > watchpoint_output (1) 167 > DONE 168 169 Example multiple line Python watchpoint command, using 'loose' Python: 170 171 (lldb) watchpoint command add -s p 1 172 Enter your Python command(s). Type 'DONE' to end. 173 > global wp_count 174 > wp_count = wp_count + 1 175 > print "Hit this watchpoint " + repr(wp_count) + " times!" 176 > DONE 177 178 )" 179 "In this case, since there is a reference to a global variable, \ 180 'wp_count', you will also need to make sure 'wp_count' exists and is \ 181 initialized:" 182 R"( 183 184 (lldb) script 185 >>> wp_count = 0 186 >>> quit() 187 188 )" 189 "Final Note: A warning that no watchpoint command was generated when there \ 190 are no syntax errors may indicate that a function was declared but never called."); 191 192 CommandArgumentEntry arg; 193 CommandArgumentData wp_id_arg; 194 195 // Define the first (and only) variant of this arg. 196 wp_id_arg.arg_type = eArgTypeWatchpointID; 197 wp_id_arg.arg_repetition = eArgRepeatPlain; 198 199 // There is only one variant this argument could be; put it into the 200 // argument entry. 201 arg.push_back(wp_id_arg); 202 203 // Push the data for the first argument into the m_arguments vector. 204 m_arguments.push_back(arg); 205 } 206 207 ~CommandObjectWatchpointCommandAdd() override = default; 208 209 Options *GetOptions() override { return &m_options; } 210 211 void IOHandlerActivated(IOHandler &io_handler) override { 212 StreamFileSP output_sp(io_handler.GetOutputStreamFile()); 213 if (output_sp) { 214 output_sp->PutCString( 215 "Enter your debugger command(s). Type 'DONE' to end.\n"); 216 output_sp->Flush(); 217 } 218 } 219 220 void IOHandlerInputComplete(IOHandler &io_handler, 221 std::string &line) override { 222 io_handler.SetIsDone(true); 223 224 // The WatchpointOptions object is owned by the watchpoint or watchpoint 225 // location 226 WatchpointOptions *wp_options = 227 (WatchpointOptions *)io_handler.GetUserData(); 228 if (wp_options) { 229 std::unique_ptr<WatchpointOptions::CommandData> data_ap( 230 new WatchpointOptions::CommandData()); 231 if (data_ap) { 232 data_ap->user_source.SplitIntoLines(line); 233 auto baton_sp = std::make_shared<WatchpointOptions::CommandBaton>( 234 std::move(data_ap)); 235 wp_options->SetCallback(WatchpointOptionsCallbackFunction, baton_sp); 236 } 237 } 238 } 239 240 void CollectDataForWatchpointCommandCallback(WatchpointOptions *wp_options, 241 CommandReturnObject &result) { 242 m_interpreter.GetLLDBCommandsFromIOHandler( 243 "> ", // Prompt 244 *this, // IOHandlerDelegate 245 true, // Run IOHandler in async mode 246 wp_options); // Baton for the "io_handler" that will be passed back into 247 // our IOHandlerDelegate functions 248 } 249 250 /// Set a one-liner as the callback for the watchpoint. 251 void SetWatchpointCommandCallback(WatchpointOptions *wp_options, 252 const char *oneliner) { 253 std::unique_ptr<WatchpointOptions::CommandData> data_ap( 254 new WatchpointOptions::CommandData()); 255 256 // It's necessary to set both user_source and script_source to the 257 // oneliner. The former is used to generate callback description (as in 258 // watchpoint command list) while the latter is used for Python to 259 // interpret during the actual 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 if the debugger is set up that 289 // 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 Status SetOptionValue(uint32_t option_idx, llvm::StringRef option_arg, 322 ExecutionContext *execution_context) override { 323 Status 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)OptionArgParser::ToOptionEnum( 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 = 344 OptionArgParser::ToBoolean(option_arg, false, &success); 345 if (!success) 346 error.SetErrorStringWithFormat( 347 "invalid value for stop-on-error: \"%s\"", 348 option_arg.str().c_str()); 349 } break; 350 351 case 'F': 352 m_use_one_liner = false; 353 m_use_script_language = true; 354 m_function_name.assign(option_arg); 355 break; 356 357 default: 358 break; 359 } 360 return error; 361 } 362 363 void OptionParsingStarting(ExecutionContext *execution_context) override { 364 m_use_commands = true; 365 m_use_script_language = false; 366 m_script_language = eScriptLanguageNone; 367 368 m_use_one_liner = false; 369 m_stop_on_error = true; 370 m_one_liner.clear(); 371 m_function_name.clear(); 372 } 373 374 llvm::ArrayRef<OptionDefinition> GetDefinitions() override { 375 return llvm::makeArrayRef(g_watchpoint_command_add_options); 376 } 377 378 // Instance variables to hold the values for command options. 379 380 bool m_use_commands; 381 bool m_use_script_language; 382 lldb::ScriptLanguage m_script_language; 383 384 // Instance variables to hold the values for one_liner options. 385 bool m_use_one_liner; 386 std::string m_one_liner; 387 bool m_stop_on_error; 388 std::string m_function_name; 389 }; 390 391 protected: 392 bool DoExecute(Args &command, CommandReturnObject &result) override { 393 Target *target = m_interpreter.GetDebugger().GetSelectedTarget().get(); 394 395 if (target == nullptr) { 396 result.AppendError("There is not a current executable; there are no " 397 "watchpoints to which to add commands"); 398 result.SetStatus(eReturnStatusFailed); 399 return false; 400 } 401 402 const WatchpointList &watchpoints = target->GetWatchpointList(); 403 size_t num_watchpoints = watchpoints.GetSize(); 404 405 if (num_watchpoints == 0) { 406 result.AppendError("No watchpoints exist to have commands added"); 407 result.SetStatus(eReturnStatusFailed); 408 return false; 409 } 410 411 if (!m_options.m_use_script_language && 412 !m_options.m_function_name.empty()) { 413 result.AppendError("need to enable scripting to have a function run as a " 414 "watchpoint command"); 415 result.SetStatus(eReturnStatusFailed); 416 return false; 417 } 418 419 std::vector<uint32_t> valid_wp_ids; 420 if (!CommandObjectMultiwordWatchpoint::VerifyWatchpointIDs(target, command, 421 valid_wp_ids)) { 422 result.AppendError("Invalid watchpoints specification."); 423 result.SetStatus(eReturnStatusFailed); 424 return false; 425 } 426 427 result.SetStatus(eReturnStatusSuccessFinishNoResult); 428 const size_t count = valid_wp_ids.size(); 429 for (size_t i = 0; i < count; ++i) { 430 uint32_t cur_wp_id = valid_wp_ids.at(i); 431 if (cur_wp_id != LLDB_INVALID_WATCH_ID) { 432 Watchpoint *wp = target->GetWatchpointList().FindByID(cur_wp_id).get(); 433 // Sanity check wp first. 434 if (wp == nullptr) 435 continue; 436 437 WatchpointOptions *wp_options = wp->GetOptions(); 438 // Skip this watchpoint if wp_options is not good. 439 if (wp_options == nullptr) 440 continue; 441 442 // If we are using script language, get the script interpreter in order 443 // to set or collect command callback. Otherwise, call the methods 444 // associated with this object. 445 if (m_options.m_use_script_language) { 446 // Special handling for one-liner specified inline. 447 if (m_options.m_use_one_liner) { 448 m_interpreter.GetScriptInterpreter()->SetWatchpointCommandCallback( 449 wp_options, m_options.m_one_liner.c_str()); 450 } 451 // Special handling for using a Python function by name instead of 452 // extending the watchpoint callback data structures, we just 453 // automatize what the user would do manually: make their watchpoint 454 // command be a 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 'commands').", 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