1 //===-- CommandObjectBreakpointCommand.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 "CommandObjectBreakpointCommand.h" 10 #include "CommandObjectBreakpoint.h" 11 #include "lldb/Breakpoint/Breakpoint.h" 12 #include "lldb/Breakpoint/BreakpointIDList.h" 13 #include "lldb/Breakpoint/BreakpointLocation.h" 14 #include "lldb/Breakpoint/StoppointCallbackContext.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 #include "llvm/ADT/STLExtras.h" 25 26 using namespace lldb; 27 using namespace lldb_private; 28 29 // FIXME: "script-type" needs to have its contents determined dynamically, so 30 // somebody can add a new scripting language to lldb and have it pickable here 31 // without having to change this enumeration by hand and rebuild lldb proper. 32 static constexpr OptionEnumValueElement g_script_option_enumeration[] = { 33 { 34 eScriptLanguageNone, 35 "command", 36 "Commands are in the lldb command interpreter language", 37 }, 38 { 39 eScriptLanguagePython, 40 "python", 41 "Commands are in the Python language.", 42 }, 43 { 44 eSortOrderByName, 45 "default-script", 46 "Commands are in the default scripting language.", 47 }, 48 }; 49 50 static constexpr OptionEnumValues ScriptOptionEnum() { 51 return OptionEnumValues(g_script_option_enumeration); 52 } 53 54 #define LLDB_OPTIONS_breakpoint_command_add 55 #include "CommandOptions.inc" 56 57 class CommandObjectBreakpointCommandAdd : public CommandObjectParsed, 58 public IOHandlerDelegateMultiline { 59 public: 60 CommandObjectBreakpointCommandAdd(CommandInterpreter &interpreter) 61 : CommandObjectParsed(interpreter, "add", 62 "Add LLDB commands to a breakpoint, to be executed " 63 "whenever the breakpoint is hit." 64 " If no breakpoint is specified, adds the " 65 "commands to the last created breakpoint.", 66 nullptr), 67 IOHandlerDelegateMultiline("DONE", 68 IOHandlerDelegate::Completion::LLDBCommand), 69 m_options() { 70 SetHelpLong( 71 R"( 72 General information about entering breakpoint commands 73 ------------------------------------------------------ 74 75 )" 76 "This command will prompt for commands to be executed when the specified \ 77 breakpoint is hit. Each command is typed on its own line following the '> ' \ 78 prompt until 'DONE' is entered." 79 R"( 80 81 )" 82 "Syntactic errors may not be detected when initially entered, and many \ 83 malformed commands can silently fail when executed. If your breakpoint commands \ 84 do not appear to be executing, double-check the command syntax." 85 R"( 86 87 )" 88 "Note: You may enter any debugger command exactly as you would at the debugger \ 89 prompt. There is no limit to the number of commands supplied, but do NOT enter \ 90 more than one command per line." 91 R"( 92 93 Special information about PYTHON breakpoint commands 94 ---------------------------------------------------- 95 96 )" 97 "You may enter either one or more lines of Python, including function \ 98 definitions or calls to functions that will have been imported by the time \ 99 the code executes. Single line breakpoint commands will be interpreted 'as is' \ 100 when the breakpoint is hit. Multiple lines of Python will be wrapped in a \ 101 generated function, and a call to the function will be attached to the breakpoint." 102 R"( 103 104 This auto-generated function is passed in three arguments: 105 106 frame: an lldb.SBFrame object for the frame which hit breakpoint. 107 108 bp_loc: an lldb.SBBreakpointLocation object that represents the breakpoint location that was hit. 109 110 dict: the python session dictionary 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.breakpoint_callback 118 119 The function itself must have the following prototype: 120 121 def breakpoint_callback(frame, bp_loc, dict): 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 breakpoint commands." 137 R"( 138 139 Example Python one-line breakpoint command: 140 141 (lldb) breakpoint command add -s python 1 142 Enter your Python command(s). Type 'DONE' to end. 143 > print "Hit this breakpoint!" 144 > DONE 145 146 As a convenience, this also works for a short Python one-liner: 147 148 (lldb) breakpoint 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 = breakpoint 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 breakpoint command: 163 164 (lldb) breakpoint command add -s p 1 165 Enter your Python command(s). Type 'DONE' to end. 166 > global bp_count 167 > bp_count = bp_count + 1 168 > print "Hit this breakpoint " + repr(bp_count) + " times!" 169 > DONE 170 171 Example multiple line Python breakpoint command, using function definition: 172 173 (lldb) breakpoint command add -s python 1 174 Enter your Python command(s). Type 'DONE' to end. 175 > def breakpoint_output (bp_no): 176 > out_string = "Hit breakpoint number " + repr (bp_no) 177 > print out_string 178 > return True 179 > breakpoint_output (1) 180 > DONE 181 182 )" 183 "In this case, since there is a reference to a global variable, \ 184 'bp_count', you will also need to make sure 'bp_count' exists and is \ 185 initialized:" 186 R"( 187 188 (lldb) script 189 >>> bp_count = 0 190 >>> quit() 191 192 )" 193 "Your Python code, however organized, can optionally return a value. \ 194 If the returned value is False, that tells LLDB not to stop at the breakpoint \ 195 to which the code is associated. Returning anything other than False, or even \ 196 returning None, or even omitting a return statement entirely, will cause \ 197 LLDB to stop." 198 R"( 199 200 )" 201 "Final Note: A warning that no breakpoint command was generated when there \ 202 are no syntax errors may indicate that a function was declared but never called."); 203 204 CommandArgumentEntry arg; 205 CommandArgumentData bp_id_arg; 206 207 // Define the first (and only) variant of this arg. 208 bp_id_arg.arg_type = eArgTypeBreakpointID; 209 bp_id_arg.arg_repetition = eArgRepeatOptional; 210 211 // There is only one variant this argument could be; put it into the 212 // argument entry. 213 arg.push_back(bp_id_arg); 214 215 // Push the data for the first argument into the m_arguments vector. 216 m_arguments.push_back(arg); 217 } 218 219 ~CommandObjectBreakpointCommandAdd() override = default; 220 221 Options *GetOptions() override { return &m_options; } 222 223 void IOHandlerActivated(IOHandler &io_handler, bool interactive) override { 224 StreamFileSP output_sp(io_handler.GetOutputStreamFileSP()); 225 if (output_sp && interactive) { 226 output_sp->PutCString(g_reader_instructions); 227 output_sp->Flush(); 228 } 229 } 230 231 void IOHandlerInputComplete(IOHandler &io_handler, 232 std::string &line) override { 233 io_handler.SetIsDone(true); 234 235 std::vector<BreakpointOptions *> *bp_options_vec = 236 (std::vector<BreakpointOptions *> *)io_handler.GetUserData(); 237 for (BreakpointOptions *bp_options : *bp_options_vec) { 238 if (!bp_options) 239 continue; 240 241 auto cmd_data = std::make_unique<BreakpointOptions::CommandData>(); 242 cmd_data->user_source.SplitIntoLines(line.c_str(), line.size()); 243 bp_options->SetCommandDataCallback(cmd_data); 244 } 245 } 246 247 void CollectDataForBreakpointCommandCallback( 248 std::vector<BreakpointOptions *> &bp_options_vec, 249 CommandReturnObject &result) { 250 m_interpreter.GetLLDBCommandsFromIOHandler( 251 "> ", // Prompt 252 *this, // IOHandlerDelegate 253 true, // Run IOHandler in async mode 254 &bp_options_vec); // Baton for the "io_handler" that will be passed back 255 // into our IOHandlerDelegate functions 256 } 257 258 /// Set a one-liner as the callback for the breakpoint. 259 void 260 SetBreakpointCommandCallback(std::vector<BreakpointOptions *> &bp_options_vec, 261 const char *oneliner) { 262 for (auto bp_options : bp_options_vec) { 263 auto cmd_data = std::make_unique<BreakpointOptions::CommandData>(); 264 265 cmd_data->user_source.AppendString(oneliner); 266 cmd_data->stop_on_error = m_options.m_stop_on_error; 267 268 bp_options->SetCommandDataCallback(cmd_data); 269 } 270 } 271 272 class CommandOptions : public Options { 273 public: 274 CommandOptions() 275 : Options(), m_use_commands(false), m_use_script_language(false), 276 m_script_language(eScriptLanguageNone), m_use_one_liner(false), 277 m_one_liner(), m_function_name() {} 278 279 ~CommandOptions() override = default; 280 281 Status SetOptionValue(uint32_t option_idx, llvm::StringRef option_arg, 282 ExecutionContext *execution_context) override { 283 Status error; 284 const int short_option = m_getopt_table[option_idx].val; 285 286 switch (short_option) { 287 case 'o': 288 m_use_one_liner = true; 289 m_one_liner = option_arg; 290 break; 291 292 case 's': 293 m_script_language = (lldb::ScriptLanguage)OptionArgParser::ToOptionEnum( 294 option_arg, 295 g_breakpoint_command_add_options[option_idx].enum_values, 296 eScriptLanguageNone, error); 297 298 if (m_script_language == eScriptLanguagePython || 299 m_script_language == eScriptLanguageDefault) { 300 m_use_script_language = true; 301 } else { 302 m_use_script_language = false; 303 } 304 break; 305 306 case 'e': { 307 bool success = false; 308 m_stop_on_error = 309 OptionArgParser::ToBoolean(option_arg, false, &success); 310 if (!success) 311 error.SetErrorStringWithFormat( 312 "invalid value for stop-on-error: \"%s\"", 313 option_arg.str().c_str()); 314 } break; 315 316 case 'F': 317 m_use_one_liner = false; 318 m_use_script_language = true; 319 m_function_name.assign(option_arg); 320 break; 321 322 case 'D': 323 m_use_dummy = true; 324 break; 325 326 default: 327 llvm_unreachable("Unimplemented option"); 328 } 329 return error; 330 } 331 332 void OptionParsingStarting(ExecutionContext *execution_context) override { 333 m_use_commands = true; 334 m_use_script_language = false; 335 m_script_language = eScriptLanguageNone; 336 337 m_use_one_liner = false; 338 m_stop_on_error = true; 339 m_one_liner.clear(); 340 m_function_name.clear(); 341 m_use_dummy = false; 342 } 343 344 llvm::ArrayRef<OptionDefinition> GetDefinitions() override { 345 return llvm::makeArrayRef(g_breakpoint_command_add_options); 346 } 347 348 // Instance variables to hold the values for command options. 349 350 bool m_use_commands; 351 bool m_use_script_language; 352 lldb::ScriptLanguage m_script_language; 353 354 // Instance variables to hold the values for one_liner options. 355 bool m_use_one_liner; 356 std::string m_one_liner; 357 bool m_stop_on_error; 358 std::string m_function_name; 359 bool m_use_dummy; 360 }; 361 362 protected: 363 bool DoExecute(Args &command, CommandReturnObject &result) override { 364 Target &target = GetSelectedOrDummyTarget(m_options.m_use_dummy); 365 366 const BreakpointList &breakpoints = target.GetBreakpointList(); 367 size_t num_breakpoints = breakpoints.GetSize(); 368 369 if (num_breakpoints == 0) { 370 result.AppendError("No breakpoints exist to have commands added"); 371 result.SetStatus(eReturnStatusFailed); 372 return false; 373 } 374 375 if (!m_options.m_use_script_language && 376 !m_options.m_function_name.empty()) { 377 result.AppendError("need to enable scripting to have a function run as a " 378 "breakpoint command"); 379 result.SetStatus(eReturnStatusFailed); 380 return false; 381 } 382 383 BreakpointIDList valid_bp_ids; 384 CommandObjectMultiwordBreakpoint::VerifyBreakpointOrLocationIDs( 385 command, &target, result, &valid_bp_ids, 386 BreakpointName::Permissions::PermissionKinds::listPerm); 387 388 m_bp_options_vec.clear(); 389 390 if (result.Succeeded()) { 391 const size_t count = valid_bp_ids.GetSize(); 392 393 for (size_t i = 0; i < count; ++i) { 394 BreakpointID cur_bp_id = valid_bp_ids.GetBreakpointIDAtIndex(i); 395 if (cur_bp_id.GetBreakpointID() != LLDB_INVALID_BREAK_ID) { 396 Breakpoint *bp = 397 target.GetBreakpointByID(cur_bp_id.GetBreakpointID()).get(); 398 BreakpointOptions *bp_options = nullptr; 399 if (cur_bp_id.GetLocationID() == LLDB_INVALID_BREAK_ID) { 400 // This breakpoint does not have an associated location. 401 bp_options = bp->GetOptions(); 402 } else { 403 BreakpointLocationSP bp_loc_sp( 404 bp->FindLocationByID(cur_bp_id.GetLocationID())); 405 // This breakpoint does have an associated location. Get its 406 // breakpoint options. 407 if (bp_loc_sp) 408 bp_options = bp_loc_sp->GetLocationOptions(); 409 } 410 if (bp_options) 411 m_bp_options_vec.push_back(bp_options); 412 } 413 } 414 415 // If we are using script language, get the script interpreter in order 416 // to set or collect command callback. Otherwise, call the methods 417 // associated with this object. 418 if (m_options.m_use_script_language) { 419 ScriptInterpreter *script_interp = GetDebugger().GetScriptInterpreter(); 420 // Special handling for one-liner specified inline. 421 if (m_options.m_use_one_liner) { 422 script_interp->SetBreakpointCommandCallback( 423 m_bp_options_vec, m_options.m_one_liner.c_str()); 424 } else if (!m_options.m_function_name.empty()) { 425 script_interp->SetBreakpointCommandCallbackFunction( 426 m_bp_options_vec, m_options.m_function_name.c_str()); 427 } else { 428 script_interp->CollectDataForBreakpointCommandCallback( 429 m_bp_options_vec, result); 430 } 431 } else { 432 // Special handling for one-liner specified inline. 433 if (m_options.m_use_one_liner) 434 SetBreakpointCommandCallback(m_bp_options_vec, 435 m_options.m_one_liner.c_str()); 436 else 437 CollectDataForBreakpointCommandCallback(m_bp_options_vec, result); 438 } 439 } 440 441 return result.Succeeded(); 442 } 443 444 private: 445 CommandOptions m_options; 446 std::vector<BreakpointOptions *> m_bp_options_vec; // This stores the 447 // breakpoint options that 448 // we are currently 449 // collecting commands for. In the CollectData... calls we need to hand this 450 // off to the IOHandler, which may run asynchronously. So we have to have 451 // some way to keep it alive, and not leak it. Making it an ivar of the 452 // command object, which never goes away achieves this. Note that if we were 453 // able to run the same command concurrently in one interpreter we'd have to 454 // make this "per invocation". But there are many more reasons why it is not 455 // in general safe to do that in lldb at present, so it isn't worthwhile to 456 // come up with a more complex mechanism to address this particular weakness 457 // right now. 458 static const char *g_reader_instructions; 459 }; 460 461 const char *CommandObjectBreakpointCommandAdd::g_reader_instructions = 462 "Enter your debugger command(s). Type 'DONE' to end.\n"; 463 464 // CommandObjectBreakpointCommandDelete 465 466 #define LLDB_OPTIONS_breakpoint_command_delete 467 #include "CommandOptions.inc" 468 469 class CommandObjectBreakpointCommandDelete : public CommandObjectParsed { 470 public: 471 CommandObjectBreakpointCommandDelete(CommandInterpreter &interpreter) 472 : CommandObjectParsed(interpreter, "delete", 473 "Delete the set of commands from a breakpoint.", 474 nullptr), 475 m_options() { 476 CommandArgumentEntry arg; 477 CommandArgumentData bp_id_arg; 478 479 // Define the first (and only) variant of this arg. 480 bp_id_arg.arg_type = eArgTypeBreakpointID; 481 bp_id_arg.arg_repetition = eArgRepeatPlain; 482 483 // There is only one variant this argument could be; put it into the 484 // argument entry. 485 arg.push_back(bp_id_arg); 486 487 // Push the data for the first argument into the m_arguments vector. 488 m_arguments.push_back(arg); 489 } 490 491 ~CommandObjectBreakpointCommandDelete() override = default; 492 493 Options *GetOptions() override { return &m_options; } 494 495 class CommandOptions : public Options { 496 public: 497 CommandOptions() : Options(), m_use_dummy(false) {} 498 499 ~CommandOptions() override = default; 500 501 Status SetOptionValue(uint32_t option_idx, llvm::StringRef option_arg, 502 ExecutionContext *execution_context) override { 503 Status error; 504 const int short_option = m_getopt_table[option_idx].val; 505 506 switch (short_option) { 507 case 'D': 508 m_use_dummy = true; 509 break; 510 511 default: 512 llvm_unreachable("Unimplemented option"); 513 } 514 515 return error; 516 } 517 518 void OptionParsingStarting(ExecutionContext *execution_context) override { 519 m_use_dummy = false; 520 } 521 522 llvm::ArrayRef<OptionDefinition> GetDefinitions() override { 523 return llvm::makeArrayRef(g_breakpoint_command_delete_options); 524 } 525 526 // Instance variables to hold the values for command options. 527 bool m_use_dummy; 528 }; 529 530 protected: 531 bool DoExecute(Args &command, CommandReturnObject &result) override { 532 Target &target = GetSelectedOrDummyTarget(m_options.m_use_dummy); 533 534 const BreakpointList &breakpoints = target.GetBreakpointList(); 535 size_t num_breakpoints = breakpoints.GetSize(); 536 537 if (num_breakpoints == 0) { 538 result.AppendError("No breakpoints exist to have commands deleted"); 539 result.SetStatus(eReturnStatusFailed); 540 return false; 541 } 542 543 if (command.empty()) { 544 result.AppendError( 545 "No breakpoint specified from which to delete the commands"); 546 result.SetStatus(eReturnStatusFailed); 547 return false; 548 } 549 550 BreakpointIDList valid_bp_ids; 551 CommandObjectMultiwordBreakpoint::VerifyBreakpointOrLocationIDs( 552 command, &target, result, &valid_bp_ids, 553 BreakpointName::Permissions::PermissionKinds::listPerm); 554 555 if (result.Succeeded()) { 556 const size_t count = valid_bp_ids.GetSize(); 557 for (size_t i = 0; i < count; ++i) { 558 BreakpointID cur_bp_id = valid_bp_ids.GetBreakpointIDAtIndex(i); 559 if (cur_bp_id.GetBreakpointID() != LLDB_INVALID_BREAK_ID) { 560 Breakpoint *bp = 561 target.GetBreakpointByID(cur_bp_id.GetBreakpointID()).get(); 562 if (cur_bp_id.GetLocationID() != LLDB_INVALID_BREAK_ID) { 563 BreakpointLocationSP bp_loc_sp( 564 bp->FindLocationByID(cur_bp_id.GetLocationID())); 565 if (bp_loc_sp) 566 bp_loc_sp->ClearCallback(); 567 else { 568 result.AppendErrorWithFormat("Invalid breakpoint ID: %u.%u.\n", 569 cur_bp_id.GetBreakpointID(), 570 cur_bp_id.GetLocationID()); 571 result.SetStatus(eReturnStatusFailed); 572 return false; 573 } 574 } else { 575 bp->ClearCallback(); 576 } 577 } 578 } 579 } 580 return result.Succeeded(); 581 } 582 583 private: 584 CommandOptions m_options; 585 }; 586 587 // CommandObjectBreakpointCommandList 588 589 class CommandObjectBreakpointCommandList : public CommandObjectParsed { 590 public: 591 CommandObjectBreakpointCommandList(CommandInterpreter &interpreter) 592 : CommandObjectParsed(interpreter, "list", 593 "List the script or set of commands to be " 594 "executed when the breakpoint is hit.", 595 nullptr, eCommandRequiresTarget) { 596 CommandArgumentEntry arg; 597 CommandArgumentData bp_id_arg; 598 599 // Define the first (and only) variant of this arg. 600 bp_id_arg.arg_type = eArgTypeBreakpointID; 601 bp_id_arg.arg_repetition = eArgRepeatPlain; 602 603 // There is only one variant this argument could be; put it into the 604 // argument entry. 605 arg.push_back(bp_id_arg); 606 607 // Push the data for the first argument into the m_arguments vector. 608 m_arguments.push_back(arg); 609 } 610 611 ~CommandObjectBreakpointCommandList() override = default; 612 613 protected: 614 bool DoExecute(Args &command, CommandReturnObject &result) override { 615 Target *target = &GetSelectedTarget(); 616 617 const BreakpointList &breakpoints = target->GetBreakpointList(); 618 size_t num_breakpoints = breakpoints.GetSize(); 619 620 if (num_breakpoints == 0) { 621 result.AppendError("No breakpoints exist for which to list commands"); 622 result.SetStatus(eReturnStatusFailed); 623 return false; 624 } 625 626 if (command.empty()) { 627 result.AppendError( 628 "No breakpoint specified for which to list the commands"); 629 result.SetStatus(eReturnStatusFailed); 630 return false; 631 } 632 633 BreakpointIDList valid_bp_ids; 634 CommandObjectMultiwordBreakpoint::VerifyBreakpointOrLocationIDs( 635 command, target, result, &valid_bp_ids, 636 BreakpointName::Permissions::PermissionKinds::listPerm); 637 638 if (result.Succeeded()) { 639 const size_t count = valid_bp_ids.GetSize(); 640 for (size_t i = 0; i < count; ++i) { 641 BreakpointID cur_bp_id = valid_bp_ids.GetBreakpointIDAtIndex(i); 642 if (cur_bp_id.GetBreakpointID() != LLDB_INVALID_BREAK_ID) { 643 Breakpoint *bp = 644 target->GetBreakpointByID(cur_bp_id.GetBreakpointID()).get(); 645 646 if (bp) { 647 BreakpointLocationSP bp_loc_sp; 648 if (cur_bp_id.GetLocationID() != LLDB_INVALID_BREAK_ID) { 649 bp_loc_sp = bp->FindLocationByID(cur_bp_id.GetLocationID()); 650 if (!bp_loc_sp) 651 { 652 result.AppendErrorWithFormat("Invalid breakpoint ID: %u.%u.\n", 653 cur_bp_id.GetBreakpointID(), 654 cur_bp_id.GetLocationID()); 655 result.SetStatus(eReturnStatusFailed); 656 return false; 657 } 658 } 659 660 StreamString id_str; 661 BreakpointID::GetCanonicalReference(&id_str, 662 cur_bp_id.GetBreakpointID(), 663 cur_bp_id.GetLocationID()); 664 const Baton *baton = nullptr; 665 if (bp_loc_sp) 666 baton = bp_loc_sp 667 ->GetOptionsSpecifyingKind(BreakpointOptions::eCallback) 668 ->GetBaton(); 669 else 670 baton = bp->GetOptions()->GetBaton(); 671 672 if (baton) { 673 result.GetOutputStream().Printf("Breakpoint %s:\n", 674 id_str.GetData()); 675 result.GetOutputStream().IndentMore(); 676 baton->GetDescription(&result.GetOutputStream(), 677 eDescriptionLevelFull); 678 result.GetOutputStream().IndentLess(); 679 } else { 680 result.AppendMessageWithFormat( 681 "Breakpoint %s does not have an associated command.\n", 682 id_str.GetData()); 683 } 684 } 685 result.SetStatus(eReturnStatusSuccessFinishResult); 686 } else { 687 result.AppendErrorWithFormat("Invalid breakpoint ID: %u.\n", 688 cur_bp_id.GetBreakpointID()); 689 result.SetStatus(eReturnStatusFailed); 690 } 691 } 692 } 693 694 return result.Succeeded(); 695 } 696 }; 697 698 // CommandObjectBreakpointCommand 699 700 CommandObjectBreakpointCommand::CommandObjectBreakpointCommand( 701 CommandInterpreter &interpreter) 702 : CommandObjectMultiword( 703 interpreter, "command", "Commands for adding, removing and listing " 704 "LLDB commands executed when a breakpoint is " 705 "hit.", 706 "command <sub-command> [<sub-command-options>] <breakpoint-id>") { 707 CommandObjectSP add_command_object( 708 new CommandObjectBreakpointCommandAdd(interpreter)); 709 CommandObjectSP delete_command_object( 710 new CommandObjectBreakpointCommandDelete(interpreter)); 711 CommandObjectSP list_command_object( 712 new CommandObjectBreakpointCommandList(interpreter)); 713 714 add_command_object->SetCommandName("breakpoint command add"); 715 delete_command_object->SetCommandName("breakpoint command delete"); 716 list_command_object->SetCommandName("breakpoint command list"); 717 718 LoadSubCommand("add", add_command_object); 719 LoadSubCommand("delete", delete_command_object); 720 LoadSubCommand("list", list_command_object); 721 } 722 723 CommandObjectBreakpointCommand::~CommandObjectBreakpointCommand() = default; 724