1 //===-- CommandObjectWatchpointCommand.cpp ----------------------*- C++ -*-===// 2 // 3 // The LLVM Compiler Infrastructure 4 // 5 // This file is distributed under the University of Illinois Open Source 6 // License. See LICENSE.TXT for details. 7 // 8 //===----------------------------------------------------------------------===// 9 10 // C Includes 11 // C++ Includes 12 #include <vector> 13 14 // Other libraries and framework includes 15 // Project includes 16 #include "CommandObjectWatchpoint.h" 17 #include "CommandObjectWatchpointCommand.h" 18 #include "lldb/Breakpoint/StoppointCallbackContext.h" 19 #include "lldb/Breakpoint/Watchpoint.h" 20 #include "lldb/Core/IOHandler.h" 21 #include "lldb/Core/State.h" 22 #include "lldb/Host/OptionParser.h" 23 #include "lldb/Interpreter/CommandInterpreter.h" 24 #include "lldb/Interpreter/CommandReturnObject.h" 25 #include "lldb/Interpreter/OptionArgParser.h" 26 #include "lldb/Target/Target.h" 27 #include "lldb/Target/Thread.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 OptionEnumValueElement g_script_option_enumeration[4] = { 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 {0, nullptr, nullptr}}; 48 49 static OptionDefinition g_watchpoint_command_add_options[] = { 50 // clang-format off 51 { LLDB_OPT_SET_1, false, "one-liner", 'o', OptionParser::eRequiredArgument, nullptr, nullptr, 0, eArgTypeOneLiner, "Specify a one-line watchpoint command inline. Be sure to surround it with quotes." }, 52 { LLDB_OPT_SET_ALL, false, "stop-on-error", 'e', OptionParser::eRequiredArgument, nullptr, nullptr, 0, eArgTypeBoolean, "Specify whether watchpoint command execution should terminate on error." }, 53 { LLDB_OPT_SET_ALL, false, "script-type", 's', OptionParser::eRequiredArgument, nullptr, g_script_option_enumeration, 0, eArgTypeNone, "Specify the language for the commands - if none is specified, the lldb command interpreter will be used." }, 54 { LLDB_OPT_SET_2, false, "python-function", 'F', OptionParser::eRequiredArgument, nullptr, nullptr, 0, eArgTypePythonFunction, "Give the name of a Python function to run as command for this watchpoint. Be sure to give a module name if appropriate." } 55 // clang-format on 56 }; 57 58 class CommandObjectWatchpointCommandAdd : public CommandObjectParsed, 59 public IOHandlerDelegateMultiline { 60 public: 61 CommandObjectWatchpointCommandAdd(CommandInterpreter &interpreter) 62 : CommandObjectParsed(interpreter, "add", 63 "Add a set of LLDB commands to a watchpoint, to be " 64 "executed whenever the watchpoint is hit.", 65 nullptr), 66 IOHandlerDelegateMultiline("DONE", 67 IOHandlerDelegate::Completion::LLDBCommand), 68 m_options() { 69 SetHelpLong( 70 R"( 71 General information about entering watchpoint commands 72 ------------------------------------------------------ 73 74 )" 75 "This command will prompt for commands to be executed when the specified \ 76 watchpoint is hit. Each command is typed on its own line following the '> ' \ 77 prompt until 'DONE' is entered." 78 R"( 79 80 )" 81 "Syntactic errors may not be detected when initially entered, and many \ 82 malformed commands can silently fail when executed. If your watchpoint commands \ 83 do not appear to be executing, double-check the command syntax." 84 R"( 85 86 )" 87 "Note: You may enter any debugger command exactly as you would at the debugger \ 88 prompt. There is no limit to the number of commands supplied, but do NOT enter \ 89 more than one command per line." 90 R"( 91 92 Special information about PYTHON watchpoint commands 93 ---------------------------------------------------- 94 95 )" 96 "You may enter either one or more lines of Python, including function \ 97 definitions or calls to functions that will have been imported by the time \ 98 the code executes. Single line watchpoint commands will be interpreted 'as is' \ 99 when the watchpoint is hit. Multiple lines of Python will be wrapped in a \ 100 generated function, and a call to the function will be attached to the watchpoint." 101 R"( 102 103 This auto-generated function is passed in three arguments: 104 105 frame: an lldb.SBFrame object for the frame which hit the watchpoint. 106 107 wp: the watchpoint that was hit. 108 109 )" 110 "When specifying a python function with the --python-function option, you need \ 111 to supply the function name prepended by the module name:" 112 R"( 113 114 --python-function myutils.watchpoint_callback 115 116 The function itself must have the following prototype: 117 118 def watchpoint_callback(frame, wp): 119 # Your code goes here 120 121 )" 122 "The arguments are the same as the arguments passed to generated functions as \ 123 described above. Note that the global variable 'lldb.frame' will NOT be updated when \ 124 this function is called, so be sure to use the 'frame' argument. The 'frame' argument \ 125 can get you to the thread via frame.GetThread(), the thread can get you to the \ 126 process via thread.GetProcess(), and the process can get you back to the target \ 127 via process.GetTarget()." 128 R"( 129 130 )" 131 "Important Note: As Python code gets collected into functions, access to global \ 132 variables requires explicit scoping using the 'global' keyword. Be sure to use correct \ 133 Python syntax, including indentation, when entering Python watchpoint commands." 134 R"( 135 136 Example Python one-line watchpoint command: 137 138 (lldb) watchpoint command add -s python 1 139 Enter your Python command(s). Type 'DONE' to end. 140 > print "Hit this watchpoint!" 141 > DONE 142 143 As a convenience, this also works for a short Python one-liner: 144 145 (lldb) watchpoint command add -s python 1 -o 'import time; print time.asctime()' 146 (lldb) run 147 Launching '.../a.out' (x86_64) 148 (lldb) Fri Sep 10 12:17:45 2010 149 Process 21778 Stopped 150 * thread #1: tid = 0x2e03, 0x0000000100000de8 a.out`c + 7 at main.c:39, stop reason = watchpoint 1.1, queue = com.apple.main-thread 151 36 152 37 int c(int val) 153 38 { 154 39 -> return val + 3; 155 40 } 156 41 157 42 int main (int argc, char const *argv[]) 158 159 Example multiple line Python watchpoint command, using function definition: 160 161 (lldb) watchpoint command add -s python 1 162 Enter your Python command(s). Type 'DONE' to end. 163 > def watchpoint_output (wp_no): 164 > out_string = "Hit watchpoint number " + repr (wp_no) 165 > print out_string 166 > return True 167 > watchpoint_output (1) 168 > DONE 169 170 Example multiple line Python watchpoint command, using 'loose' Python: 171 172 (lldb) watchpoint command add -s p 1 173 Enter your Python command(s). Type 'DONE' to end. 174 > global wp_count 175 > wp_count = wp_count + 1 176 > print "Hit this watchpoint " + repr(wp_count) + " times!" 177 > DONE 178 179 )" 180 "In this case, since there is a reference to a global variable, \ 181 'wp_count', you will also need to make sure 'wp_count' exists and is \ 182 initialized:" 183 R"( 184 185 (lldb) script 186 >>> wp_count = 0 187 >>> quit() 188 189 )" 190 "Final Note: A warning that no watchpoint command was generated when there \ 191 are no syntax errors may indicate that a function was declared but never called."); 192 193 CommandArgumentEntry arg; 194 CommandArgumentData wp_id_arg; 195 196 // Define the first (and only) variant of this arg. 197 wp_id_arg.arg_type = eArgTypeWatchpointID; 198 wp_id_arg.arg_repetition = eArgRepeatPlain; 199 200 // There is only one variant this argument could be; put it into the 201 // argument entry. 202 arg.push_back(wp_id_arg); 203 204 // Push the data for the first argument into the m_arguments vector. 205 m_arguments.push_back(arg); 206 } 207 208 ~CommandObjectWatchpointCommandAdd() override = default; 209 210 Options *GetOptions() override { return &m_options; } 211 212 void IOHandlerActivated(IOHandler &io_handler) override { 213 StreamFileSP output_sp(io_handler.GetOutputStreamFile()); 214 if (output_sp) { 215 output_sp->PutCString( 216 "Enter your debugger command(s). Type 'DONE' to end.\n"); 217 output_sp->Flush(); 218 } 219 } 220 221 void IOHandlerInputComplete(IOHandler &io_handler, 222 std::string &line) override { 223 io_handler.SetIsDone(true); 224 225 // The WatchpointOptions object is owned by the watchpoint or watchpoint 226 // location 227 WatchpointOptions *wp_options = 228 (WatchpointOptions *)io_handler.GetUserData(); 229 if (wp_options) { 230 std::unique_ptr<WatchpointOptions::CommandData> data_ap( 231 new WatchpointOptions::CommandData()); 232 if (data_ap) { 233 data_ap->user_source.SplitIntoLines(line); 234 auto baton_sp = std::make_shared<WatchpointOptions::CommandBaton>( 235 std::move(data_ap)); 236 wp_options->SetCallback(WatchpointOptionsCallbackFunction, baton_sp); 237 } 238 } 239 } 240 241 void CollectDataForWatchpointCommandCallback(WatchpointOptions *wp_options, 242 CommandReturnObject &result) { 243 m_interpreter.GetLLDBCommandsFromIOHandler( 244 "> ", // Prompt 245 *this, // IOHandlerDelegate 246 true, // Run IOHandler in async mode 247 wp_options); // Baton for the "io_handler" that will be passed back into 248 // our IOHandlerDelegate functions 249 } 250 251 /// Set a one-liner as the callback for the watchpoint. 252 void SetWatchpointCommandCallback(WatchpointOptions *wp_options, 253 const char *oneliner) { 254 std::unique_ptr<WatchpointOptions::CommandData> data_ap( 255 new WatchpointOptions::CommandData()); 256 257 // It's necessary to set both user_source and script_source to the oneliner. 258 // The former is used to generate callback description (as in watchpoint 259 // command list) 260 // while the latter is used for Python to interpret during the actual 261 // callback. 262 data_ap->user_source.AppendString(oneliner); 263 data_ap->script_source.assign(oneliner); 264 data_ap->stop_on_error = m_options.m_stop_on_error; 265 266 auto baton_sp = 267 std::make_shared<WatchpointOptions::CommandBaton>(std::move(data_ap)); 268 wp_options->SetCallback(WatchpointOptionsCallbackFunction, baton_sp); 269 } 270 271 static bool 272 WatchpointOptionsCallbackFunction(void *baton, 273 StoppointCallbackContext *context, 274 lldb::user_id_t watch_id) { 275 bool ret_value = true; 276 if (baton == nullptr) 277 return true; 278 279 WatchpointOptions::CommandData *data = 280 (WatchpointOptions::CommandData *)baton; 281 StringList &commands = data->user_source; 282 283 if (commands.GetSize() > 0) { 284 ExecutionContext exe_ctx(context->exe_ctx_ref); 285 Target *target = exe_ctx.GetTargetPtr(); 286 if (target) { 287 CommandReturnObject result; 288 Debugger &debugger = target->GetDebugger(); 289 // Rig up the results secondary output stream to the debugger's, so the 290 // output will come out synchronously 291 // if the debugger is set up that way. 292 293 StreamSP output_stream(debugger.GetAsyncOutputStream()); 294 StreamSP error_stream(debugger.GetAsyncErrorStream()); 295 result.SetImmediateOutputStream(output_stream); 296 result.SetImmediateErrorStream(error_stream); 297 298 CommandInterpreterRunOptions options; 299 options.SetStopOnContinue(true); 300 options.SetStopOnError(data->stop_on_error); 301 options.SetEchoCommands(false); 302 options.SetPrintResults(true); 303 options.SetAddToHistory(false); 304 305 debugger.GetCommandInterpreter().HandleCommands(commands, &exe_ctx, 306 options, result); 307 result.GetImmediateOutputStream()->Flush(); 308 result.GetImmediateErrorStream()->Flush(); 309 } 310 } 311 return ret_value; 312 } 313 314 class CommandOptions : public Options { 315 public: 316 CommandOptions() 317 : Options(), m_use_commands(false), m_use_script_language(false), 318 m_script_language(eScriptLanguageNone), m_use_one_liner(false), 319 m_one_liner(), m_function_name() {} 320 321 ~CommandOptions() override = default; 322 323 Status SetOptionValue(uint32_t option_idx, llvm::StringRef option_arg, 324 ExecutionContext *execution_context) override { 325 Status error; 326 const int short_option = m_getopt_table[option_idx].val; 327 328 switch (short_option) { 329 case 'o': 330 m_use_one_liner = true; 331 m_one_liner = option_arg; 332 break; 333 334 case 's': 335 m_script_language = (lldb::ScriptLanguage)OptionArgParser::ToOptionEnum( 336 option_arg, GetDefinitions()[option_idx].enum_values, 337 eScriptLanguageNone, error); 338 339 m_use_script_language = (m_script_language == eScriptLanguagePython || 340 m_script_language == eScriptLanguageDefault); 341 break; 342 343 case 'e': { 344 bool success = false; 345 m_stop_on_error = 346 OptionArgParser::ToBoolean(option_arg, false, &success); 347 if (!success) 348 error.SetErrorStringWithFormat( 349 "invalid value for stop-on-error: \"%s\"", 350 option_arg.str().c_str()); 351 } break; 352 353 case 'F': 354 m_use_one_liner = false; 355 m_use_script_language = true; 356 m_function_name.assign(option_arg); 357 break; 358 359 default: 360 break; 361 } 362 return error; 363 } 364 365 void OptionParsingStarting(ExecutionContext *execution_context) override { 366 m_use_commands = true; 367 m_use_script_language = false; 368 m_script_language = eScriptLanguageNone; 369 370 m_use_one_liner = false; 371 m_stop_on_error = true; 372 m_one_liner.clear(); 373 m_function_name.clear(); 374 } 375 376 llvm::ArrayRef<OptionDefinition> GetDefinitions() override { 377 return llvm::makeArrayRef(g_watchpoint_command_add_options); 378 } 379 380 // Instance variables to hold the values for command options. 381 382 bool m_use_commands; 383 bool m_use_script_language; 384 lldb::ScriptLanguage m_script_language; 385 386 // Instance variables to hold the values for one_liner options. 387 bool m_use_one_liner; 388 std::string m_one_liner; 389 bool m_stop_on_error; 390 std::string m_function_name; 391 }; 392 393 protected: 394 bool DoExecute(Args &command, CommandReturnObject &result) override { 395 Target *target = m_interpreter.GetDebugger().GetSelectedTarget().get(); 396 397 if (target == nullptr) { 398 result.AppendError("There is not a current executable; there are no " 399 "watchpoints to which to add commands"); 400 result.SetStatus(eReturnStatusFailed); 401 return false; 402 } 403 404 const WatchpointList &watchpoints = target->GetWatchpointList(); 405 size_t num_watchpoints = watchpoints.GetSize(); 406 407 if (num_watchpoints == 0) { 408 result.AppendError("No watchpoints exist to have commands added"); 409 result.SetStatus(eReturnStatusFailed); 410 return false; 411 } 412 413 if (!m_options.m_use_script_language && 414 !m_options.m_function_name.empty()) { 415 result.AppendError("need to enable scripting to have a function run as a " 416 "watchpoint command"); 417 result.SetStatus(eReturnStatusFailed); 418 return false; 419 } 420 421 std::vector<uint32_t> valid_wp_ids; 422 if (!CommandObjectMultiwordWatchpoint::VerifyWatchpointIDs(target, command, 423 valid_wp_ids)) { 424 result.AppendError("Invalid watchpoints specification."); 425 result.SetStatus(eReturnStatusFailed); 426 return false; 427 } 428 429 result.SetStatus(eReturnStatusSuccessFinishNoResult); 430 const size_t count = valid_wp_ids.size(); 431 for (size_t i = 0; i < count; ++i) { 432 uint32_t cur_wp_id = valid_wp_ids.at(i); 433 if (cur_wp_id != LLDB_INVALID_WATCH_ID) { 434 Watchpoint *wp = target->GetWatchpointList().FindByID(cur_wp_id).get(); 435 // Sanity check wp first. 436 if (wp == nullptr) 437 continue; 438 439 WatchpointOptions *wp_options = wp->GetOptions(); 440 // Skip this watchpoint if wp_options is not good. 441 if (wp_options == nullptr) 442 continue; 443 444 // If we are using script language, get the script interpreter 445 // in order to set or collect command callback. Otherwise, call 446 // the methods associated with this object. 447 if (m_options.m_use_script_language) { 448 // Special handling for one-liner specified inline. 449 if (m_options.m_use_one_liner) { 450 m_interpreter.GetScriptInterpreter()->SetWatchpointCommandCallback( 451 wp_options, m_options.m_one_liner.c_str()); 452 } 453 // Special handling for using a Python function by name 454 // instead of extending the watchpoint callback data structures, we 455 // just automatize 456 // what the user would do manually: make their watchpoint command be a 457 // function call 458 else if (!m_options.m_function_name.empty()) { 459 std::string oneliner(m_options.m_function_name); 460 oneliner += "(frame, wp, internal_dict)"; 461 m_interpreter.GetScriptInterpreter()->SetWatchpointCommandCallback( 462 wp_options, oneliner.c_str()); 463 } else { 464 m_interpreter.GetScriptInterpreter() 465 ->CollectDataForWatchpointCommandCallback(wp_options, result); 466 } 467 } else { 468 // Special handling for one-liner specified inline. 469 if (m_options.m_use_one_liner) 470 SetWatchpointCommandCallback(wp_options, 471 m_options.m_one_liner.c_str()); 472 else 473 CollectDataForWatchpointCommandCallback(wp_options, result); 474 } 475 } 476 } 477 478 return result.Succeeded(); 479 } 480 481 private: 482 CommandOptions m_options; 483 }; 484 485 //------------------------------------------------------------------------- 486 // CommandObjectWatchpointCommandDelete 487 //------------------------------------------------------------------------- 488 489 class CommandObjectWatchpointCommandDelete : public CommandObjectParsed { 490 public: 491 CommandObjectWatchpointCommandDelete(CommandInterpreter &interpreter) 492 : CommandObjectParsed(interpreter, "delete", 493 "Delete the set of commands from a watchpoint.", 494 nullptr) { 495 CommandArgumentEntry arg; 496 CommandArgumentData wp_id_arg; 497 498 // Define the first (and only) variant of this arg. 499 wp_id_arg.arg_type = eArgTypeWatchpointID; 500 wp_id_arg.arg_repetition = eArgRepeatPlain; 501 502 // There is only one variant this argument could be; put it into the 503 // argument entry. 504 arg.push_back(wp_id_arg); 505 506 // Push the data for the first argument into the m_arguments vector. 507 m_arguments.push_back(arg); 508 } 509 510 ~CommandObjectWatchpointCommandDelete() override = default; 511 512 protected: 513 bool DoExecute(Args &command, CommandReturnObject &result) override { 514 Target *target = m_interpreter.GetDebugger().GetSelectedTarget().get(); 515 516 if (target == nullptr) { 517 result.AppendError("There is not a current executable; there are no " 518 "watchpoints from which to delete commands"); 519 result.SetStatus(eReturnStatusFailed); 520 return false; 521 } 522 523 const WatchpointList &watchpoints = target->GetWatchpointList(); 524 size_t num_watchpoints = watchpoints.GetSize(); 525 526 if (num_watchpoints == 0) { 527 result.AppendError("No watchpoints exist to have commands deleted"); 528 result.SetStatus(eReturnStatusFailed); 529 return false; 530 } 531 532 if (command.GetArgumentCount() == 0) { 533 result.AppendError( 534 "No watchpoint specified from which to delete the commands"); 535 result.SetStatus(eReturnStatusFailed); 536 return false; 537 } 538 539 std::vector<uint32_t> valid_wp_ids; 540 if (!CommandObjectMultiwordWatchpoint::VerifyWatchpointIDs(target, command, 541 valid_wp_ids)) { 542 result.AppendError("Invalid watchpoints specification."); 543 result.SetStatus(eReturnStatusFailed); 544 return false; 545 } 546 547 result.SetStatus(eReturnStatusSuccessFinishNoResult); 548 const size_t count = valid_wp_ids.size(); 549 for (size_t i = 0; i < count; ++i) { 550 uint32_t cur_wp_id = valid_wp_ids.at(i); 551 if (cur_wp_id != LLDB_INVALID_WATCH_ID) { 552 Watchpoint *wp = target->GetWatchpointList().FindByID(cur_wp_id).get(); 553 if (wp) 554 wp->ClearCallback(); 555 } else { 556 result.AppendErrorWithFormat("Invalid watchpoint ID: %u.\n", cur_wp_id); 557 result.SetStatus(eReturnStatusFailed); 558 return false; 559 } 560 } 561 return result.Succeeded(); 562 } 563 }; 564 565 //------------------------------------------------------------------------- 566 // CommandObjectWatchpointCommandList 567 //------------------------------------------------------------------------- 568 569 class CommandObjectWatchpointCommandList : public CommandObjectParsed { 570 public: 571 CommandObjectWatchpointCommandList(CommandInterpreter &interpreter) 572 : CommandObjectParsed(interpreter, "list", "List the script or set of " 573 "commands to be executed when " 574 "the watchpoint is hit.", 575 nullptr) { 576 CommandArgumentEntry arg; 577 CommandArgumentData wp_id_arg; 578 579 // Define the first (and only) variant of this arg. 580 wp_id_arg.arg_type = eArgTypeWatchpointID; 581 wp_id_arg.arg_repetition = eArgRepeatPlain; 582 583 // There is only one variant this argument could be; put it into the 584 // argument entry. 585 arg.push_back(wp_id_arg); 586 587 // Push the data for the first argument into the m_arguments vector. 588 m_arguments.push_back(arg); 589 } 590 591 ~CommandObjectWatchpointCommandList() override = default; 592 593 protected: 594 bool DoExecute(Args &command, CommandReturnObject &result) override { 595 Target *target = m_interpreter.GetDebugger().GetSelectedTarget().get(); 596 597 if (target == nullptr) { 598 result.AppendError("There is not a current executable; there are no " 599 "watchpoints for which to list commands"); 600 result.SetStatus(eReturnStatusFailed); 601 return false; 602 } 603 604 const WatchpointList &watchpoints = target->GetWatchpointList(); 605 size_t num_watchpoints = watchpoints.GetSize(); 606 607 if (num_watchpoints == 0) { 608 result.AppendError("No watchpoints exist for which to list commands"); 609 result.SetStatus(eReturnStatusFailed); 610 return false; 611 } 612 613 if (command.GetArgumentCount() == 0) { 614 result.AppendError( 615 "No watchpoint specified for which to list the commands"); 616 result.SetStatus(eReturnStatusFailed); 617 return false; 618 } 619 620 std::vector<uint32_t> valid_wp_ids; 621 if (!CommandObjectMultiwordWatchpoint::VerifyWatchpointIDs(target, command, 622 valid_wp_ids)) { 623 result.AppendError("Invalid watchpoints specification."); 624 result.SetStatus(eReturnStatusFailed); 625 return false; 626 } 627 628 result.SetStatus(eReturnStatusSuccessFinishNoResult); 629 const size_t count = valid_wp_ids.size(); 630 for (size_t i = 0; i < count; ++i) { 631 uint32_t cur_wp_id = valid_wp_ids.at(i); 632 if (cur_wp_id != LLDB_INVALID_WATCH_ID) { 633 Watchpoint *wp = target->GetWatchpointList().FindByID(cur_wp_id).get(); 634 635 if (wp) { 636 const WatchpointOptions *wp_options = wp->GetOptions(); 637 if (wp_options) { 638 // Get the callback baton associated with the current watchpoint. 639 const Baton *baton = wp_options->GetBaton(); 640 if (baton) { 641 result.GetOutputStream().Printf("Watchpoint %u:\n", cur_wp_id); 642 result.GetOutputStream().IndentMore(); 643 baton->GetDescription(&result.GetOutputStream(), 644 eDescriptionLevelFull); 645 result.GetOutputStream().IndentLess(); 646 } else { 647 result.AppendMessageWithFormat( 648 "Watchpoint %u does not have an associated command.\n", 649 cur_wp_id); 650 } 651 } 652 result.SetStatus(eReturnStatusSuccessFinishResult); 653 } else { 654 result.AppendErrorWithFormat("Invalid watchpoint ID: %u.\n", 655 cur_wp_id); 656 result.SetStatus(eReturnStatusFailed); 657 } 658 } 659 } 660 661 return result.Succeeded(); 662 } 663 }; 664 665 //------------------------------------------------------------------------- 666 // CommandObjectWatchpointCommand 667 //------------------------------------------------------------------------- 668 669 CommandObjectWatchpointCommand::CommandObjectWatchpointCommand( 670 CommandInterpreter &interpreter) 671 : CommandObjectMultiword( 672 interpreter, "command", 673 "Commands for adding, removing and examining LLDB commands " 674 "executed when the watchpoint is hit (watchpoint 'commmands').", 675 "command <sub-command> [<sub-command-options>] <watchpoint-id>") { 676 CommandObjectSP add_command_object( 677 new CommandObjectWatchpointCommandAdd(interpreter)); 678 CommandObjectSP delete_command_object( 679 new CommandObjectWatchpointCommandDelete(interpreter)); 680 CommandObjectSP list_command_object( 681 new CommandObjectWatchpointCommandList(interpreter)); 682 683 add_command_object->SetCommandName("watchpoint command add"); 684 delete_command_object->SetCommandName("watchpoint command delete"); 685 list_command_object->SetCommandName("watchpoint command list"); 686 687 LoadSubCommand("add", add_command_object); 688 LoadSubCommand("delete", delete_command_object); 689 LoadSubCommand("list", list_command_object); 690 } 691 692 CommandObjectWatchpointCommand::~CommandObjectWatchpointCommand() = default; 693