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 //------------------------------------------------------------------------- 28 // CommandObjectWatchpointCommandAdd 29 //------------------------------------------------------------------------- 30 31 // FIXME: "script-type" needs to have its contents determined dynamically, so 32 // somebody can add a new scripting 33 // language to lldb and have it pickable here without having to change this 34 // enumeration by hand and rebuild lldb proper. 35 36 static constexpr OptionEnumValueElement g_script_option_enumeration[] = { 37 {eScriptLanguageNone, "command", 38 "Commands are in the lldb command interpreter language"}, 39 {eScriptLanguagePython, "python", "Commands are in the Python language."}, 40 {eSortOrderByName, "default-script", 41 "Commands are in the default scripting language."} }; 42 43 static constexpr OptionEnumValues ScriptOptionEnum() { 44 return OptionEnumValues(g_script_option_enumeration); 45 } 46 47 static constexpr OptionDefinition g_watchpoint_command_add_options[] = { 48 // clang-format off 49 { 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." }, 50 { LLDB_OPT_SET_ALL, false, "stop-on-error", 'e', OptionParser::eRequiredArgument, nullptr, {}, 0, eArgTypeBoolean, "Specify whether watchpoint command execution should terminate on error." }, 51 { 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." }, 52 { 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." } 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, bool interactive) override { 211 StreamFileSP output_sp(io_handler.GetOutputStreamFile()); 212 if (output_sp && interactive) { 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_up( 229 new WatchpointOptions::CommandData()); 230 if (data_up) { 231 data_up->user_source.SplitIntoLines(line); 232 auto baton_sp = std::make_shared<WatchpointOptions::CommandBaton>( 233 std::move(data_up)); 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_up( 253 new WatchpointOptions::CommandData()); 254 255 // It's necessary to set both user_source and script_source to the 256 // oneliner. The former is used to generate callback description (as in 257 // watchpoint command list) while the latter is used for Python to 258 // interpret during the actual callback. 259 data_up->user_source.AppendString(oneliner); 260 data_up->script_source.assign(oneliner); 261 data_up->stop_on_error = m_options.m_stop_on_error; 262 263 auto baton_sp = 264 std::make_shared<WatchpointOptions::CommandBaton>(std::move(data_up)); 265 wp_options->SetCallback(WatchpointOptionsCallbackFunction, baton_sp); 266 } 267 268 static bool 269 WatchpointOptionsCallbackFunction(void *baton, 270 StoppointCallbackContext *context, 271 lldb::user_id_t watch_id) { 272 bool ret_value = true; 273 if (baton == nullptr) 274 return true; 275 276 WatchpointOptions::CommandData *data = 277 (WatchpointOptions::CommandData *)baton; 278 StringList &commands = data->user_source; 279 280 if (commands.GetSize() > 0) { 281 ExecutionContext exe_ctx(context->exe_ctx_ref); 282 Target *target = exe_ctx.GetTargetPtr(); 283 if (target) { 284 CommandReturnObject result; 285 Debugger &debugger = target->GetDebugger(); 286 // Rig up the results secondary output stream to the debugger's, so the 287 // output will come out synchronously if the debugger is set up that 288 // way. 289 290 StreamSP output_stream(debugger.GetAsyncOutputStream()); 291 StreamSP error_stream(debugger.GetAsyncErrorStream()); 292 result.SetImmediateOutputStream(output_stream); 293 result.SetImmediateErrorStream(error_stream); 294 295 CommandInterpreterRunOptions options; 296 options.SetStopOnContinue(true); 297 options.SetStopOnError(data->stop_on_error); 298 options.SetEchoCommands(false); 299 options.SetPrintResults(true); 300 options.SetAddToHistory(false); 301 302 debugger.GetCommandInterpreter().HandleCommands(commands, &exe_ctx, 303 options, result); 304 result.GetImmediateOutputStream()->Flush(); 305 result.GetImmediateErrorStream()->Flush(); 306 } 307 } 308 return ret_value; 309 } 310 311 class CommandOptions : public Options { 312 public: 313 CommandOptions() 314 : Options(), m_use_commands(false), m_use_script_language(false), 315 m_script_language(eScriptLanguageNone), m_use_one_liner(false), 316 m_one_liner(), m_function_name() {} 317 318 ~CommandOptions() override = default; 319 320 Status SetOptionValue(uint32_t option_idx, llvm::StringRef option_arg, 321 ExecutionContext *execution_context) override { 322 Status error; 323 const int short_option = m_getopt_table[option_idx].val; 324 325 switch (short_option) { 326 case 'o': 327 m_use_one_liner = true; 328 m_one_liner = option_arg; 329 break; 330 331 case 's': 332 m_script_language = (lldb::ScriptLanguage)OptionArgParser::ToOptionEnum( 333 option_arg, GetDefinitions()[option_idx].enum_values, 334 eScriptLanguageNone, error); 335 336 m_use_script_language = (m_script_language == eScriptLanguagePython || 337 m_script_language == eScriptLanguageDefault); 338 break; 339 340 case 'e': { 341 bool success = false; 342 m_stop_on_error = 343 OptionArgParser::ToBoolean(option_arg, false, &success); 344 if (!success) 345 error.SetErrorStringWithFormat( 346 "invalid value for stop-on-error: \"%s\"", 347 option_arg.str().c_str()); 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 llvm::makeArrayRef(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 in order 442 // to set or collect command callback. Otherwise, call the methods 443 // 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 instead of 451 // extending the watchpoint callback data structures, we just 452 // automatize what the user would do manually: make their watchpoint 453 // command be a function call 454 else if (!m_options.m_function_name.empty()) { 455 std::string oneliner(m_options.m_function_name); 456 oneliner += "(frame, wp, internal_dict)"; 457 m_interpreter.GetScriptInterpreter()->SetWatchpointCommandCallback( 458 wp_options, oneliner.c_str()); 459 } else { 460 m_interpreter.GetScriptInterpreter() 461 ->CollectDataForWatchpointCommandCallback(wp_options, result); 462 } 463 } else { 464 // Special handling for one-liner specified inline. 465 if (m_options.m_use_one_liner) 466 SetWatchpointCommandCallback(wp_options, 467 m_options.m_one_liner.c_str()); 468 else 469 CollectDataForWatchpointCommandCallback(wp_options, result); 470 } 471 } 472 } 473 474 return result.Succeeded(); 475 } 476 477 private: 478 CommandOptions m_options; 479 }; 480 481 //------------------------------------------------------------------------- 482 // CommandObjectWatchpointCommandDelete 483 //------------------------------------------------------------------------- 484 485 class CommandObjectWatchpointCommandDelete : public CommandObjectParsed { 486 public: 487 CommandObjectWatchpointCommandDelete(CommandInterpreter &interpreter) 488 : CommandObjectParsed(interpreter, "delete", 489 "Delete the set of commands from a watchpoint.", 490 nullptr) { 491 CommandArgumentEntry arg; 492 CommandArgumentData wp_id_arg; 493 494 // Define the first (and only) variant of this arg. 495 wp_id_arg.arg_type = eArgTypeWatchpointID; 496 wp_id_arg.arg_repetition = eArgRepeatPlain; 497 498 // There is only one variant this argument could be; put it into the 499 // argument entry. 500 arg.push_back(wp_id_arg); 501 502 // Push the data for the first argument into the m_arguments vector. 503 m_arguments.push_back(arg); 504 } 505 506 ~CommandObjectWatchpointCommandDelete() override = default; 507 508 protected: 509 bool DoExecute(Args &command, CommandReturnObject &result) override { 510 Target *target = m_interpreter.GetDebugger().GetSelectedTarget().get(); 511 512 if (target == nullptr) { 513 result.AppendError("There is not a current executable; there are no " 514 "watchpoints from which to delete commands"); 515 result.SetStatus(eReturnStatusFailed); 516 return false; 517 } 518 519 const WatchpointList &watchpoints = target->GetWatchpointList(); 520 size_t num_watchpoints = watchpoints.GetSize(); 521 522 if (num_watchpoints == 0) { 523 result.AppendError("No watchpoints exist to have commands deleted"); 524 result.SetStatus(eReturnStatusFailed); 525 return false; 526 } 527 528 if (command.GetArgumentCount() == 0) { 529 result.AppendError( 530 "No watchpoint specified from which to delete the commands"); 531 result.SetStatus(eReturnStatusFailed); 532 return false; 533 } 534 535 std::vector<uint32_t> valid_wp_ids; 536 if (!CommandObjectMultiwordWatchpoint::VerifyWatchpointIDs(target, command, 537 valid_wp_ids)) { 538 result.AppendError("Invalid watchpoints specification."); 539 result.SetStatus(eReturnStatusFailed); 540 return false; 541 } 542 543 result.SetStatus(eReturnStatusSuccessFinishNoResult); 544 const size_t count = valid_wp_ids.size(); 545 for (size_t i = 0; i < count; ++i) { 546 uint32_t cur_wp_id = valid_wp_ids.at(i); 547 if (cur_wp_id != LLDB_INVALID_WATCH_ID) { 548 Watchpoint *wp = target->GetWatchpointList().FindByID(cur_wp_id).get(); 549 if (wp) 550 wp->ClearCallback(); 551 } else { 552 result.AppendErrorWithFormat("Invalid watchpoint ID: %u.\n", cur_wp_id); 553 result.SetStatus(eReturnStatusFailed); 554 return false; 555 } 556 } 557 return result.Succeeded(); 558 } 559 }; 560 561 //------------------------------------------------------------------------- 562 // CommandObjectWatchpointCommandList 563 //------------------------------------------------------------------------- 564 565 class CommandObjectWatchpointCommandList : public CommandObjectParsed { 566 public: 567 CommandObjectWatchpointCommandList(CommandInterpreter &interpreter) 568 : CommandObjectParsed(interpreter, "list", "List the script or set of " 569 "commands to be executed when " 570 "the watchpoint is hit.", 571 nullptr) { 572 CommandArgumentEntry arg; 573 CommandArgumentData wp_id_arg; 574 575 // Define the first (and only) variant of this arg. 576 wp_id_arg.arg_type = eArgTypeWatchpointID; 577 wp_id_arg.arg_repetition = eArgRepeatPlain; 578 579 // There is only one variant this argument could be; put it into the 580 // argument entry. 581 arg.push_back(wp_id_arg); 582 583 // Push the data for the first argument into the m_arguments vector. 584 m_arguments.push_back(arg); 585 } 586 587 ~CommandObjectWatchpointCommandList() override = default; 588 589 protected: 590 bool DoExecute(Args &command, CommandReturnObject &result) override { 591 Target *target = m_interpreter.GetDebugger().GetSelectedTarget().get(); 592 593 if (target == nullptr) { 594 result.AppendError("There is not a current executable; there are no " 595 "watchpoints for which to list commands"); 596 result.SetStatus(eReturnStatusFailed); 597 return false; 598 } 599 600 const WatchpointList &watchpoints = target->GetWatchpointList(); 601 size_t num_watchpoints = watchpoints.GetSize(); 602 603 if (num_watchpoints == 0) { 604 result.AppendError("No watchpoints exist for which to list commands"); 605 result.SetStatus(eReturnStatusFailed); 606 return false; 607 } 608 609 if (command.GetArgumentCount() == 0) { 610 result.AppendError( 611 "No watchpoint specified for which to list the commands"); 612 result.SetStatus(eReturnStatusFailed); 613 return false; 614 } 615 616 std::vector<uint32_t> valid_wp_ids; 617 if (!CommandObjectMultiwordWatchpoint::VerifyWatchpointIDs(target, command, 618 valid_wp_ids)) { 619 result.AppendError("Invalid watchpoints specification."); 620 result.SetStatus(eReturnStatusFailed); 621 return false; 622 } 623 624 result.SetStatus(eReturnStatusSuccessFinishNoResult); 625 const size_t count = valid_wp_ids.size(); 626 for (size_t i = 0; i < count; ++i) { 627 uint32_t cur_wp_id = valid_wp_ids.at(i); 628 if (cur_wp_id != LLDB_INVALID_WATCH_ID) { 629 Watchpoint *wp = target->GetWatchpointList().FindByID(cur_wp_id).get(); 630 631 if (wp) { 632 const WatchpointOptions *wp_options = wp->GetOptions(); 633 if (wp_options) { 634 // Get the callback baton associated with the current watchpoint. 635 const Baton *baton = wp_options->GetBaton(); 636 if (baton) { 637 result.GetOutputStream().Printf("Watchpoint %u:\n", cur_wp_id); 638 result.GetOutputStream().IndentMore(); 639 baton->GetDescription(&result.GetOutputStream(), 640 eDescriptionLevelFull); 641 result.GetOutputStream().IndentLess(); 642 } else { 643 result.AppendMessageWithFormat( 644 "Watchpoint %u does not have an associated command.\n", 645 cur_wp_id); 646 } 647 } 648 result.SetStatus(eReturnStatusSuccessFinishResult); 649 } else { 650 result.AppendErrorWithFormat("Invalid watchpoint ID: %u.\n", 651 cur_wp_id); 652 result.SetStatus(eReturnStatusFailed); 653 } 654 } 655 } 656 657 return result.Succeeded(); 658 } 659 }; 660 661 //------------------------------------------------------------------------- 662 // CommandObjectWatchpointCommand 663 //------------------------------------------------------------------------- 664 665 CommandObjectWatchpointCommand::CommandObjectWatchpointCommand( 666 CommandInterpreter &interpreter) 667 : CommandObjectMultiword( 668 interpreter, "command", 669 "Commands for adding, removing and examining LLDB commands " 670 "executed when the watchpoint is hit (watchpoint 'commands').", 671 "command <sub-command> [<sub-command-options>] <watchpoint-id>") { 672 CommandObjectSP add_command_object( 673 new CommandObjectWatchpointCommandAdd(interpreter)); 674 CommandObjectSP delete_command_object( 675 new CommandObjectWatchpointCommandDelete(interpreter)); 676 CommandObjectSP list_command_object( 677 new CommandObjectWatchpointCommandList(interpreter)); 678 679 add_command_object->SetCommandName("watchpoint command add"); 680 delete_command_object->SetCommandName("watchpoint command delete"); 681 list_command_object->SetCommandName("watchpoint command list"); 682 683 LoadSubCommand("add", add_command_object); 684 LoadSubCommand("delete", delete_command_object); 685 LoadSubCommand("list", list_command_object); 686 } 687 688 CommandObjectWatchpointCommand::~CommandObjectWatchpointCommand() = default; 689