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/Host/OptionParser.h" 22 #include "lldb/Interpreter/CommandInterpreter.h" 23 #include "lldb/Interpreter/CommandReturnObject.h" 24 #include "lldb/Interpreter/OptionArgParser.h" 25 #include "lldb/Target/Target.h" 26 #include "lldb/Target/Thread.h" 27 #include "lldb/Utility/State.h" 28 29 using namespace lldb; 30 using namespace lldb_private; 31 32 //------------------------------------------------------------------------- 33 // CommandObjectWatchpointCommandAdd 34 //------------------------------------------------------------------------- 35 36 // FIXME: "script-type" needs to have its contents determined dynamically, so 37 // somebody can add a new scripting 38 // language to lldb and have it pickable here without having to change this 39 // enumeration by hand and rebuild lldb proper. 40 41 static constexpr OptionEnumValueElement g_script_option_enumeration[] = { 42 {eScriptLanguageNone, "command", 43 "Commands are in the lldb command interpreter language"}, 44 {eScriptLanguagePython, "python", "Commands are in the Python language."}, 45 {eSortOrderByName, "default-script", 46 "Commands are in the default scripting language."} }; 47 48 static constexpr OptionEnumValues ScriptOptionEnum() { 49 return OptionEnumValues(g_script_option_enumeration); 50 } 51 52 static constexpr OptionDefinition g_watchpoint_command_add_options[] = { 53 // clang-format off 54 { 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." }, 55 { LLDB_OPT_SET_ALL, false, "stop-on-error", 'e', OptionParser::eRequiredArgument, nullptr, {}, 0, eArgTypeBoolean, "Specify whether watchpoint command execution should terminate on error." }, 56 { 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." }, 57 { 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." } 58 // clang-format on 59 }; 60 61 class CommandObjectWatchpointCommandAdd : public CommandObjectParsed, 62 public IOHandlerDelegateMultiline { 63 public: 64 CommandObjectWatchpointCommandAdd(CommandInterpreter &interpreter) 65 : CommandObjectParsed(interpreter, "add", 66 "Add a set of LLDB commands to a watchpoint, to be " 67 "executed whenever the watchpoint is hit.", 68 nullptr), 69 IOHandlerDelegateMultiline("DONE", 70 IOHandlerDelegate::Completion::LLDBCommand), 71 m_options() { 72 SetHelpLong( 73 R"( 74 General information about entering watchpoint commands 75 ------------------------------------------------------ 76 77 )" 78 "This command will prompt for commands to be executed when the specified \ 79 watchpoint is hit. Each command is typed on its own line following the '> ' \ 80 prompt until 'DONE' is entered." 81 R"( 82 83 )" 84 "Syntactic errors may not be detected when initially entered, and many \ 85 malformed commands can silently fail when executed. If your watchpoint commands \ 86 do not appear to be executing, double-check the command syntax." 87 R"( 88 89 )" 90 "Note: You may enter any debugger command exactly as you would at the debugger \ 91 prompt. There is no limit to the number of commands supplied, but do NOT enter \ 92 more than one command per line." 93 R"( 94 95 Special information about PYTHON watchpoint commands 96 ---------------------------------------------------- 97 98 )" 99 "You may enter either one or more lines of Python, including function \ 100 definitions or calls to functions that will have been imported by the time \ 101 the code executes. Single line watchpoint commands will be interpreted 'as is' \ 102 when the watchpoint is hit. Multiple lines of Python will be wrapped in a \ 103 generated function, and a call to the function will be attached to the watchpoint." 104 R"( 105 106 This auto-generated function is passed in three arguments: 107 108 frame: an lldb.SBFrame object for the frame which hit the watchpoint. 109 110 wp: the watchpoint that was hit. 111 112 )" 113 "When specifying a python function with the --python-function option, you need \ 114 to supply the function name prepended by the module name:" 115 R"( 116 117 --python-function myutils.watchpoint_callback 118 119 The function itself must have the following prototype: 120 121 def watchpoint_callback(frame, wp): 122 # Your code goes here 123 124 )" 125 "The arguments are the same as the arguments passed to generated functions as \ 126 described above. Note that the global variable 'lldb.frame' will NOT be updated when \ 127 this function is called, so be sure to use the 'frame' argument. The 'frame' argument \ 128 can get you to the thread via frame.GetThread(), the thread can get you to the \ 129 process via thread.GetProcess(), and the process can get you back to the target \ 130 via process.GetTarget()." 131 R"( 132 133 )" 134 "Important Note: As Python code gets collected into functions, access to global \ 135 variables requires explicit scoping using the 'global' keyword. Be sure to use correct \ 136 Python syntax, including indentation, when entering Python watchpoint commands." 137 R"( 138 139 Example Python one-line watchpoint command: 140 141 (lldb) watchpoint command add -s python 1 142 Enter your Python command(s). Type 'DONE' to end. 143 > print "Hit this watchpoint!" 144 > DONE 145 146 As a convenience, this also works for a short Python one-liner: 147 148 (lldb) watchpoint command add -s python 1 -o 'import time; print time.asctime()' 149 (lldb) run 150 Launching '.../a.out' (x86_64) 151 (lldb) Fri Sep 10 12:17:45 2010 152 Process 21778 Stopped 153 * thread #1: tid = 0x2e03, 0x0000000100000de8 a.out`c + 7 at main.c:39, stop reason = watchpoint 1.1, queue = com.apple.main-thread 154 36 155 37 int c(int val) 156 38 { 157 39 -> return val + 3; 158 40 } 159 41 160 42 int main (int argc, char const *argv[]) 161 162 Example multiple line Python watchpoint command, using function definition: 163 164 (lldb) watchpoint command add -s python 1 165 Enter your Python command(s). Type 'DONE' to end. 166 > def watchpoint_output (wp_no): 167 > out_string = "Hit watchpoint number " + repr (wp_no) 168 > print out_string 169 > return True 170 > watchpoint_output (1) 171 > DONE 172 173 Example multiple line Python watchpoint command, using 'loose' Python: 174 175 (lldb) watchpoint command add -s p 1 176 Enter your Python command(s). Type 'DONE' to end. 177 > global wp_count 178 > wp_count = wp_count + 1 179 > print "Hit this watchpoint " + repr(wp_count) + " times!" 180 > DONE 181 182 )" 183 "In this case, since there is a reference to a global variable, \ 184 'wp_count', you will also need to make sure 'wp_count' exists and is \ 185 initialized:" 186 R"( 187 188 (lldb) script 189 >>> wp_count = 0 190 >>> quit() 191 192 )" 193 "Final Note: A warning that no watchpoint command was generated when there \ 194 are no syntax errors may indicate that a function was declared but never called."); 195 196 CommandArgumentEntry arg; 197 CommandArgumentData wp_id_arg; 198 199 // Define the first (and only) variant of this arg. 200 wp_id_arg.arg_type = eArgTypeWatchpointID; 201 wp_id_arg.arg_repetition = eArgRepeatPlain; 202 203 // There is only one variant this argument could be; put it into the 204 // argument entry. 205 arg.push_back(wp_id_arg); 206 207 // Push the data for the first argument into the m_arguments vector. 208 m_arguments.push_back(arg); 209 } 210 211 ~CommandObjectWatchpointCommandAdd() override = default; 212 213 Options *GetOptions() override { return &m_options; } 214 215 void IOHandlerActivated(IOHandler &io_handler) override { 216 StreamFileSP output_sp(io_handler.GetOutputStreamFile()); 217 if (output_sp) { 218 output_sp->PutCString( 219 "Enter your debugger command(s). Type 'DONE' to end.\n"); 220 output_sp->Flush(); 221 } 222 } 223 224 void IOHandlerInputComplete(IOHandler &io_handler, 225 std::string &line) override { 226 io_handler.SetIsDone(true); 227 228 // The WatchpointOptions object is owned by the watchpoint or watchpoint 229 // location 230 WatchpointOptions *wp_options = 231 (WatchpointOptions *)io_handler.GetUserData(); 232 if (wp_options) { 233 std::unique_ptr<WatchpointOptions::CommandData> data_ap( 234 new WatchpointOptions::CommandData()); 235 if (data_ap) { 236 data_ap->user_source.SplitIntoLines(line); 237 auto baton_sp = std::make_shared<WatchpointOptions::CommandBaton>( 238 std::move(data_ap)); 239 wp_options->SetCallback(WatchpointOptionsCallbackFunction, baton_sp); 240 } 241 } 242 } 243 244 void CollectDataForWatchpointCommandCallback(WatchpointOptions *wp_options, 245 CommandReturnObject &result) { 246 m_interpreter.GetLLDBCommandsFromIOHandler( 247 "> ", // Prompt 248 *this, // IOHandlerDelegate 249 true, // Run IOHandler in async mode 250 wp_options); // Baton for the "io_handler" that will be passed back into 251 // our IOHandlerDelegate functions 252 } 253 254 /// Set a one-liner as the callback for the watchpoint. 255 void SetWatchpointCommandCallback(WatchpointOptions *wp_options, 256 const char *oneliner) { 257 std::unique_ptr<WatchpointOptions::CommandData> data_ap( 258 new WatchpointOptions::CommandData()); 259 260 // It's necessary to set both user_source and script_source to the 261 // oneliner. The former is used to generate callback description (as in 262 // watchpoint command list) while the latter is used for Python to 263 // interpret during the actual callback. 264 data_ap->user_source.AppendString(oneliner); 265 data_ap->script_source.assign(oneliner); 266 data_ap->stop_on_error = m_options.m_stop_on_error; 267 268 auto baton_sp = 269 std::make_shared<WatchpointOptions::CommandBaton>(std::move(data_ap)); 270 wp_options->SetCallback(WatchpointOptionsCallbackFunction, baton_sp); 271 } 272 273 static bool 274 WatchpointOptionsCallbackFunction(void *baton, 275 StoppointCallbackContext *context, 276 lldb::user_id_t watch_id) { 277 bool ret_value = true; 278 if (baton == nullptr) 279 return true; 280 281 WatchpointOptions::CommandData *data = 282 (WatchpointOptions::CommandData *)baton; 283 StringList &commands = data->user_source; 284 285 if (commands.GetSize() > 0) { 286 ExecutionContext exe_ctx(context->exe_ctx_ref); 287 Target *target = exe_ctx.GetTargetPtr(); 288 if (target) { 289 CommandReturnObject result; 290 Debugger &debugger = target->GetDebugger(); 291 // Rig up the results secondary output stream to the debugger's, so the 292 // output will come out synchronously if the debugger is set up that 293 // way. 294 295 StreamSP output_stream(debugger.GetAsyncOutputStream()); 296 StreamSP error_stream(debugger.GetAsyncErrorStream()); 297 result.SetImmediateOutputStream(output_stream); 298 result.SetImmediateErrorStream(error_stream); 299 300 CommandInterpreterRunOptions options; 301 options.SetStopOnContinue(true); 302 options.SetStopOnError(data->stop_on_error); 303 options.SetEchoCommands(false); 304 options.SetPrintResults(true); 305 options.SetAddToHistory(false); 306 307 debugger.GetCommandInterpreter().HandleCommands(commands, &exe_ctx, 308 options, result); 309 result.GetImmediateOutputStream()->Flush(); 310 result.GetImmediateErrorStream()->Flush(); 311 } 312 } 313 return ret_value; 314 } 315 316 class CommandOptions : public Options { 317 public: 318 CommandOptions() 319 : Options(), m_use_commands(false), m_use_script_language(false), 320 m_script_language(eScriptLanguageNone), m_use_one_liner(false), 321 m_one_liner(), m_function_name() {} 322 323 ~CommandOptions() override = default; 324 325 Status SetOptionValue(uint32_t option_idx, llvm::StringRef option_arg, 326 ExecutionContext *execution_context) override { 327 Status error; 328 const int short_option = m_getopt_table[option_idx].val; 329 330 switch (short_option) { 331 case 'o': 332 m_use_one_liner = true; 333 m_one_liner = option_arg; 334 break; 335 336 case 's': 337 m_script_language = (lldb::ScriptLanguage)OptionArgParser::ToOptionEnum( 338 option_arg, GetDefinitions()[option_idx].enum_values, 339 eScriptLanguageNone, error); 340 341 m_use_script_language = (m_script_language == eScriptLanguagePython || 342 m_script_language == eScriptLanguageDefault); 343 break; 344 345 case 'e': { 346 bool success = false; 347 m_stop_on_error = 348 OptionArgParser::ToBoolean(option_arg, false, &success); 349 if (!success) 350 error.SetErrorStringWithFormat( 351 "invalid value for stop-on-error: \"%s\"", 352 option_arg.str().c_str()); 353 } break; 354 355 case 'F': 356 m_use_one_liner = false; 357 m_use_script_language = true; 358 m_function_name.assign(option_arg); 359 break; 360 361 default: 362 break; 363 } 364 return error; 365 } 366 367 void OptionParsingStarting(ExecutionContext *execution_context) override { 368 m_use_commands = true; 369 m_use_script_language = false; 370 m_script_language = eScriptLanguageNone; 371 372 m_use_one_liner = false; 373 m_stop_on_error = true; 374 m_one_liner.clear(); 375 m_function_name.clear(); 376 } 377 378 llvm::ArrayRef<OptionDefinition> GetDefinitions() override { 379 return llvm::makeArrayRef(g_watchpoint_command_add_options); 380 } 381 382 // Instance variables to hold the values for command options. 383 384 bool m_use_commands; 385 bool m_use_script_language; 386 lldb::ScriptLanguage m_script_language; 387 388 // Instance variables to hold the values for one_liner options. 389 bool m_use_one_liner; 390 std::string m_one_liner; 391 bool m_stop_on_error; 392 std::string m_function_name; 393 }; 394 395 protected: 396 bool DoExecute(Args &command, CommandReturnObject &result) override { 397 Target *target = m_interpreter.GetDebugger().GetSelectedTarget().get(); 398 399 if (target == nullptr) { 400 result.AppendError("There is not a current executable; there are no " 401 "watchpoints to which to add commands"); 402 result.SetStatus(eReturnStatusFailed); 403 return false; 404 } 405 406 const WatchpointList &watchpoints = target->GetWatchpointList(); 407 size_t num_watchpoints = watchpoints.GetSize(); 408 409 if (num_watchpoints == 0) { 410 result.AppendError("No watchpoints exist to have commands added"); 411 result.SetStatus(eReturnStatusFailed); 412 return false; 413 } 414 415 if (!m_options.m_use_script_language && 416 !m_options.m_function_name.empty()) { 417 result.AppendError("need to enable scripting to have a function run as a " 418 "watchpoint command"); 419 result.SetStatus(eReturnStatusFailed); 420 return false; 421 } 422 423 std::vector<uint32_t> valid_wp_ids; 424 if (!CommandObjectMultiwordWatchpoint::VerifyWatchpointIDs(target, command, 425 valid_wp_ids)) { 426 result.AppendError("Invalid watchpoints specification."); 427 result.SetStatus(eReturnStatusFailed); 428 return false; 429 } 430 431 result.SetStatus(eReturnStatusSuccessFinishNoResult); 432 const size_t count = valid_wp_ids.size(); 433 for (size_t i = 0; i < count; ++i) { 434 uint32_t cur_wp_id = valid_wp_ids.at(i); 435 if (cur_wp_id != LLDB_INVALID_WATCH_ID) { 436 Watchpoint *wp = target->GetWatchpointList().FindByID(cur_wp_id).get(); 437 // Sanity check wp first. 438 if (wp == nullptr) 439 continue; 440 441 WatchpointOptions *wp_options = wp->GetOptions(); 442 // Skip this watchpoint if wp_options is not good. 443 if (wp_options == nullptr) 444 continue; 445 446 // If we are using script language, get the script interpreter in order 447 // to set or collect command callback. Otherwise, call the methods 448 // associated with this object. 449 if (m_options.m_use_script_language) { 450 // Special handling for one-liner specified inline. 451 if (m_options.m_use_one_liner) { 452 m_interpreter.GetScriptInterpreter()->SetWatchpointCommandCallback( 453 wp_options, m_options.m_one_liner.c_str()); 454 } 455 // Special handling for using a Python function by name instead of 456 // extending the watchpoint callback data structures, we just 457 // automatize what the user would do manually: make their watchpoint 458 // command be a function call 459 else if (!m_options.m_function_name.empty()) { 460 std::string oneliner(m_options.m_function_name); 461 oneliner += "(frame, wp, internal_dict)"; 462 m_interpreter.GetScriptInterpreter()->SetWatchpointCommandCallback( 463 wp_options, oneliner.c_str()); 464 } else { 465 m_interpreter.GetScriptInterpreter() 466 ->CollectDataForWatchpointCommandCallback(wp_options, result); 467 } 468 } else { 469 // Special handling for one-liner specified inline. 470 if (m_options.m_use_one_liner) 471 SetWatchpointCommandCallback(wp_options, 472 m_options.m_one_liner.c_str()); 473 else 474 CollectDataForWatchpointCommandCallback(wp_options, result); 475 } 476 } 477 } 478 479 return result.Succeeded(); 480 } 481 482 private: 483 CommandOptions m_options; 484 }; 485 486 //------------------------------------------------------------------------- 487 // CommandObjectWatchpointCommandDelete 488 //------------------------------------------------------------------------- 489 490 class CommandObjectWatchpointCommandDelete : public CommandObjectParsed { 491 public: 492 CommandObjectWatchpointCommandDelete(CommandInterpreter &interpreter) 493 : CommandObjectParsed(interpreter, "delete", 494 "Delete the set of commands from a watchpoint.", 495 nullptr) { 496 CommandArgumentEntry arg; 497 CommandArgumentData wp_id_arg; 498 499 // Define the first (and only) variant of this arg. 500 wp_id_arg.arg_type = eArgTypeWatchpointID; 501 wp_id_arg.arg_repetition = eArgRepeatPlain; 502 503 // There is only one variant this argument could be; put it into the 504 // argument entry. 505 arg.push_back(wp_id_arg); 506 507 // Push the data for the first argument into the m_arguments vector. 508 m_arguments.push_back(arg); 509 } 510 511 ~CommandObjectWatchpointCommandDelete() override = default; 512 513 protected: 514 bool DoExecute(Args &command, CommandReturnObject &result) override { 515 Target *target = m_interpreter.GetDebugger().GetSelectedTarget().get(); 516 517 if (target == nullptr) { 518 result.AppendError("There is not a current executable; there are no " 519 "watchpoints from which to delete commands"); 520 result.SetStatus(eReturnStatusFailed); 521 return false; 522 } 523 524 const WatchpointList &watchpoints = target->GetWatchpointList(); 525 size_t num_watchpoints = watchpoints.GetSize(); 526 527 if (num_watchpoints == 0) { 528 result.AppendError("No watchpoints exist to have commands deleted"); 529 result.SetStatus(eReturnStatusFailed); 530 return false; 531 } 532 533 if (command.GetArgumentCount() == 0) { 534 result.AppendError( 535 "No watchpoint specified from which to delete the commands"); 536 result.SetStatus(eReturnStatusFailed); 537 return false; 538 } 539 540 std::vector<uint32_t> valid_wp_ids; 541 if (!CommandObjectMultiwordWatchpoint::VerifyWatchpointIDs(target, command, 542 valid_wp_ids)) { 543 result.AppendError("Invalid watchpoints specification."); 544 result.SetStatus(eReturnStatusFailed); 545 return false; 546 } 547 548 result.SetStatus(eReturnStatusSuccessFinishNoResult); 549 const size_t count = valid_wp_ids.size(); 550 for (size_t i = 0; i < count; ++i) { 551 uint32_t cur_wp_id = valid_wp_ids.at(i); 552 if (cur_wp_id != LLDB_INVALID_WATCH_ID) { 553 Watchpoint *wp = target->GetWatchpointList().FindByID(cur_wp_id).get(); 554 if (wp) 555 wp->ClearCallback(); 556 } else { 557 result.AppendErrorWithFormat("Invalid watchpoint ID: %u.\n", cur_wp_id); 558 result.SetStatus(eReturnStatusFailed); 559 return false; 560 } 561 } 562 return result.Succeeded(); 563 } 564 }; 565 566 //------------------------------------------------------------------------- 567 // CommandObjectWatchpointCommandList 568 //------------------------------------------------------------------------- 569 570 class CommandObjectWatchpointCommandList : public CommandObjectParsed { 571 public: 572 CommandObjectWatchpointCommandList(CommandInterpreter &interpreter) 573 : CommandObjectParsed(interpreter, "list", "List the script or set of " 574 "commands to be executed when " 575 "the watchpoint is hit.", 576 nullptr) { 577 CommandArgumentEntry arg; 578 CommandArgumentData wp_id_arg; 579 580 // Define the first (and only) variant of this arg. 581 wp_id_arg.arg_type = eArgTypeWatchpointID; 582 wp_id_arg.arg_repetition = eArgRepeatPlain; 583 584 // There is only one variant this argument could be; put it into the 585 // argument entry. 586 arg.push_back(wp_id_arg); 587 588 // Push the data for the first argument into the m_arguments vector. 589 m_arguments.push_back(arg); 590 } 591 592 ~CommandObjectWatchpointCommandList() override = default; 593 594 protected: 595 bool DoExecute(Args &command, CommandReturnObject &result) override { 596 Target *target = m_interpreter.GetDebugger().GetSelectedTarget().get(); 597 598 if (target == nullptr) { 599 result.AppendError("There is not a current executable; there are no " 600 "watchpoints for which to list commands"); 601 result.SetStatus(eReturnStatusFailed); 602 return false; 603 } 604 605 const WatchpointList &watchpoints = target->GetWatchpointList(); 606 size_t num_watchpoints = watchpoints.GetSize(); 607 608 if (num_watchpoints == 0) { 609 result.AppendError("No watchpoints exist for which to list commands"); 610 result.SetStatus(eReturnStatusFailed); 611 return false; 612 } 613 614 if (command.GetArgumentCount() == 0) { 615 result.AppendError( 616 "No watchpoint specified for which to list the commands"); 617 result.SetStatus(eReturnStatusFailed); 618 return false; 619 } 620 621 std::vector<uint32_t> valid_wp_ids; 622 if (!CommandObjectMultiwordWatchpoint::VerifyWatchpointIDs(target, command, 623 valid_wp_ids)) { 624 result.AppendError("Invalid watchpoints specification."); 625 result.SetStatus(eReturnStatusFailed); 626 return false; 627 } 628 629 result.SetStatus(eReturnStatusSuccessFinishNoResult); 630 const size_t count = valid_wp_ids.size(); 631 for (size_t i = 0; i < count; ++i) { 632 uint32_t cur_wp_id = valid_wp_ids.at(i); 633 if (cur_wp_id != LLDB_INVALID_WATCH_ID) { 634 Watchpoint *wp = target->GetWatchpointList().FindByID(cur_wp_id).get(); 635 636 if (wp) { 637 const WatchpointOptions *wp_options = wp->GetOptions(); 638 if (wp_options) { 639 // Get the callback baton associated with the current watchpoint. 640 const Baton *baton = wp_options->GetBaton(); 641 if (baton) { 642 result.GetOutputStream().Printf("Watchpoint %u:\n", cur_wp_id); 643 result.GetOutputStream().IndentMore(); 644 baton->GetDescription(&result.GetOutputStream(), 645 eDescriptionLevelFull); 646 result.GetOutputStream().IndentLess(); 647 } else { 648 result.AppendMessageWithFormat( 649 "Watchpoint %u does not have an associated command.\n", 650 cur_wp_id); 651 } 652 } 653 result.SetStatus(eReturnStatusSuccessFinishResult); 654 } else { 655 result.AppendErrorWithFormat("Invalid watchpoint ID: %u.\n", 656 cur_wp_id); 657 result.SetStatus(eReturnStatusFailed); 658 } 659 } 660 } 661 662 return result.Succeeded(); 663 } 664 }; 665 666 //------------------------------------------------------------------------- 667 // CommandObjectWatchpointCommand 668 //------------------------------------------------------------------------- 669 670 CommandObjectWatchpointCommand::CommandObjectWatchpointCommand( 671 CommandInterpreter &interpreter) 672 : CommandObjectMultiword( 673 interpreter, "command", 674 "Commands for adding, removing and examining LLDB commands " 675 "executed when the watchpoint is hit (watchpoint 'commands').", 676 "command <sub-command> [<sub-command-options>] <watchpoint-id>") { 677 CommandObjectSP add_command_object( 678 new CommandObjectWatchpointCommandAdd(interpreter)); 679 CommandObjectSP delete_command_object( 680 new CommandObjectWatchpointCommandDelete(interpreter)); 681 CommandObjectSP list_command_object( 682 new CommandObjectWatchpointCommandList(interpreter)); 683 684 add_command_object->SetCommandName("watchpoint command add"); 685 delete_command_object->SetCommandName("watchpoint command delete"); 686 list_command_object->SetCommandName("watchpoint command list"); 687 688 LoadSubCommand("add", add_command_object); 689 LoadSubCommand("delete", delete_command_object); 690 LoadSubCommand("list", list_command_object); 691 } 692 693 CommandObjectWatchpointCommand::~CommandObjectWatchpointCommand() = default; 694