//===-- CommandObjectBreakpointCommand.cpp ----------------------*- C++ -*-===// // // The LLVM Compiler Infrastructure // // This file is distributed under the University of Illinois Open Source // License. See LICENSE.TXT for details. // //===----------------------------------------------------------------------===// // C Includes // C++ Includes #include "CommandObjectBreakpointCommand.h" #include "CommandObjectBreakpoint.h" #include "lldb/Core/IOHandler.h" #include "lldb/Interpreter/CommandInterpreter.h" #include "lldb/Interpreter/CommandReturnObject.h" #include "lldb/Target/Target.h" #include "lldb/Target/Thread.h" #include "lldb/Breakpoint/BreakpointIDList.h" #include "lldb/Breakpoint/Breakpoint.h" #include "lldb/Breakpoint/BreakpointLocation.h" #include "lldb/Breakpoint/StoppointCallbackContext.h" #include "lldb/Core/State.h" using namespace lldb; using namespace lldb_private; //------------------------------------------------------------------------- // CommandObjectBreakpointCommandAdd //------------------------------------------------------------------------- class CommandObjectBreakpointCommandAdd : public CommandObjectParsed, public IOHandlerDelegateMultiline { public: CommandObjectBreakpointCommandAdd (CommandInterpreter &interpreter) : CommandObjectParsed (interpreter, "add", "Add a set of commands to a breakpoint, to be executed whenever the breakpoint is hit." " If no breakpoint is specified, adds the commands to the last created breakpoint.", NULL), IOHandlerDelegateMultiline ("DONE", IOHandlerDelegate::Completion::LLDBCommand), m_options (interpreter) { SetHelpLong ( R"( General information about entering breakpoint commands ------------------------------------------------------ )" "This command will prompt for commands to be executed when the specified \ breakpoint is hit. Each command is typed on its own line following the '> ' \ prompt until 'DONE' is entered." R"( )" "Syntactic errors may not be detected when initially entered, and many \ malformed commands can silently fail when executed. If your breakpoint commands \ do not appear to be executing, double-check the command syntax." R"( )" "Note: You may enter any debugger command exactly as you would at the debugger \ prompt. There is no limit to the number of commands supplied, but do NOT enter \ more than one command per line." R"( Special information about PYTHON breakpoint commands ---------------------------------------------------- )" "You may enter either one or more lines of Python, including function \ definitions or calls to functions that will have been imported by the time \ the code executes. Single line breakpoint commands will be interpreted 'as is' \ when the breakpoint is hit. Multiple lines of Python will be wrapped in a \ generated function, and a call to the function will be attached to the breakpoint." R"( This auto-generated function is passed in three arguments: frame: an lldb.SBFrame object for the frame which hit breakpoint. bp_loc: an lldb.SBBreakpointLocation object that represents the breakpoint location that was hit. dict: the python session dictionary hit. )" "When specifying a python function with the --python-function option, you need \ to supply the function name prepended by the module name:" R"( --python-function myutils.breakpoint_callback The function itself must have the following prototype: def breakpoint_callback(frame, bp_loc, dict): # Your code goes here )" "The arguments are the same as the arguments passed to generated functions as \ described above. Note that the global variable 'lldb.frame' will NOT be updated when \ this function is called, so be sure to use the 'frame' argument. The 'frame' argument \ can get you to the thread via frame.GetThread(), the thread can get you to the \ process via thread.GetProcess(), and the process can get you back to the target \ via process.GetTarget()." R"( )" "Important Note: As Python code gets collected into functions, access to global \ variables requires explicit scoping using the 'global' keyword. Be sure to use correct \ Python syntax, including indentation, when entering Python breakpoint commands." R"( Example Python one-line breakpoint command: (lldb) breakpoint command add -s python 1 Enter your Python command(s). Type 'DONE' to end. > print "Hit this breakpoint!" > DONE As a convenience, this also works for a short Python one-liner: (lldb) breakpoint command add -s python 1 -o 'import time; print time.asctime()' (lldb) run Launching '.../a.out' (x86_64) (lldb) Fri Sep 10 12:17:45 2010 Process 21778 Stopped * thread #1: tid = 0x2e03, 0x0000000100000de8 a.out`c + 7 at main.c:39, stop reason = breakpoint 1.1, queue = com.apple.main-thread 36 37 int c(int val) 38 { 39 -> return val + 3; 40 } 41 42 int main (int argc, char const *argv[]) Example multiple line Python breakpoint command: (lldb) breakpoint command add -s p 1 Enter your Python command(s). Type 'DONE' to end. > global bp_count > bp_count = bp_count + 1 > print "Hit this breakpoint " + repr(bp_count) + " times!" > DONE Example multiple line Python breakpoint command, using function definition: (lldb) breakpoint command add -s python 1 Enter your Python command(s). Type 'DONE' to end. > def breakpoint_output (bp_no): > out_string = "Hit breakpoint number " + repr (bp_no) > print out_string > return True > breakpoint_output (1) > DONE )" "In this case, since there is a reference to a global variable, \ 'bp_count', you will also need to make sure 'bp_count' exists and is \ initialized:" R"( (lldb) script >>> bp_count = 0 >>> quit() )" "Your Python code, however organized, can optionally return a value. \ If the returned value is False, that tells LLDB not to stop at the breakpoint \ to which the code is associated. Returning anything other than False, or even \ returning None, or even omitting a return statement entirely, will cause \ LLDB to stop." R"( )" "Final Note: A warning that no breakpoint command was generated when there \ are no syntax errors may indicate that a function was declared but never called." ); CommandArgumentEntry arg; CommandArgumentData bp_id_arg; // Define the first (and only) variant of this arg. bp_id_arg.arg_type = eArgTypeBreakpointID; bp_id_arg.arg_repetition = eArgRepeatOptional; // There is only one variant this argument could be; put it into the argument entry. arg.push_back (bp_id_arg); // Push the data for the first argument into the m_arguments vector. m_arguments.push_back (arg); } virtual ~CommandObjectBreakpointCommandAdd () {} virtual Options * GetOptions () { return &m_options; } virtual void IOHandlerActivated (IOHandler &io_handler) { StreamFileSP output_sp(io_handler.GetOutputStreamFile()); if (output_sp) { output_sp->PutCString(g_reader_instructions); output_sp->Flush(); } } virtual void IOHandlerInputComplete (IOHandler &io_handler, std::string &line) { io_handler.SetIsDone(true); std::vector *bp_options_vec = (std::vector *)io_handler.GetUserData(); for (BreakpointOptions *bp_options : *bp_options_vec) { if (!bp_options) continue; std::unique_ptr data_ap(new BreakpointOptions::CommandData()); if (data_ap.get()) { data_ap->user_source.SplitIntoLines (line.c_str(), line.size()); BatonSP baton_sp (new BreakpointOptions::CommandBaton (data_ap.release())); bp_options->SetCallback (BreakpointOptionsCallbackFunction, baton_sp); } } } void CollectDataForBreakpointCommandCallback (std::vector &bp_options_vec, CommandReturnObject &result) { m_interpreter.GetLLDBCommandsFromIOHandler ("> ", // Prompt *this, // IOHandlerDelegate true, // Run IOHandler in async mode &bp_options_vec); // Baton for the "io_handler" that will be passed back into our IOHandlerDelegate functions } /// Set a one-liner as the callback for the breakpoint. void SetBreakpointCommandCallback (std::vector &bp_options_vec, const char *oneliner) { for (auto bp_options : bp_options_vec) { std::unique_ptr data_ap(new BreakpointOptions::CommandData()); // It's necessary to set both user_source and script_source to the oneliner. // The former is used to generate callback description (as in breakpoint command list) // while the latter is used for Python to interpret during the actual callback. data_ap->user_source.AppendString (oneliner); data_ap->script_source.assign (oneliner); data_ap->stop_on_error = m_options.m_stop_on_error; BatonSP baton_sp (new BreakpointOptions::CommandBaton (data_ap.release())); bp_options->SetCallback (BreakpointOptionsCallbackFunction, baton_sp); } return; } static bool BreakpointOptionsCallbackFunction (void *baton, StoppointCallbackContext *context, lldb::user_id_t break_id, lldb::user_id_t break_loc_id) { bool ret_value = true; if (baton == NULL) return true; BreakpointOptions::CommandData *data = (BreakpointOptions::CommandData *) baton; StringList &commands = data->user_source; if (commands.GetSize() > 0) { ExecutionContext exe_ctx (context->exe_ctx_ref); Target *target = exe_ctx.GetTargetPtr(); if (target) { CommandReturnObject result; Debugger &debugger = target->GetDebugger(); // Rig up the results secondary output stream to the debugger's, so the output will come out synchronously // if the debugger is set up that way. StreamSP output_stream (debugger.GetAsyncOutputStream()); StreamSP error_stream (debugger.GetAsyncErrorStream()); result.SetImmediateOutputStream (output_stream); result.SetImmediateErrorStream (error_stream); CommandInterpreterRunOptions options; options.SetStopOnContinue(true); options.SetStopOnError (data->stop_on_error); options.SetEchoCommands (true); options.SetPrintResults (true); options.SetAddToHistory (false); debugger.GetCommandInterpreter().HandleCommands (commands, &exe_ctx, options, result); result.GetImmediateOutputStream()->Flush(); result.GetImmediateErrorStream()->Flush(); } } return ret_value; } class CommandOptions : public Options { public: CommandOptions (CommandInterpreter &interpreter) : Options (interpreter), m_use_commands (false), m_use_script_language (false), m_script_language (eScriptLanguageNone), m_use_one_liner (false), m_one_liner(), m_function_name() { } virtual ~CommandOptions () {} virtual Error SetOptionValue (uint32_t option_idx, const char *option_arg) { Error error; const int short_option = m_getopt_table[option_idx].val; switch (short_option) { case 'o': m_use_one_liner = true; m_one_liner = option_arg; break; case 's': m_script_language = (lldb::ScriptLanguage) Args::StringToOptionEnum (option_arg, g_option_table[option_idx].enum_values, eScriptLanguageNone, error); if (m_script_language == eScriptLanguagePython || m_script_language == eScriptLanguageDefault) { m_use_script_language = true; } else { m_use_script_language = false; } break; case 'e': { bool success = false; m_stop_on_error = Args::StringToBoolean(option_arg, false, &success); if (!success) error.SetErrorStringWithFormat("invalid value for stop-on-error: \"%s\"", option_arg); } break; case 'F': { m_use_one_liner = false; m_use_script_language = true; m_function_name.assign(option_arg); } break; case 'D': m_use_dummy = true; break; default: break; } return error; } void OptionParsingStarting () { m_use_commands = true; m_use_script_language = false; m_script_language = eScriptLanguageNone; m_use_one_liner = false; m_stop_on_error = true; m_one_liner.clear(); m_function_name.clear(); m_use_dummy = false; } const OptionDefinition* GetDefinitions () { return g_option_table; } // Options table: Required for subclasses of Options. static OptionDefinition g_option_table[]; // Instance variables to hold the values for command options. bool m_use_commands; bool m_use_script_language; lldb::ScriptLanguage m_script_language; // Instance variables to hold the values for one_liner options. bool m_use_one_liner; std::string m_one_liner; bool m_stop_on_error; std::string m_function_name; bool m_use_dummy; }; protected: virtual bool DoExecute (Args& command, CommandReturnObject &result) { Target *target = GetSelectedOrDummyTarget(m_options.m_use_dummy); if (target == NULL) { result.AppendError ("There is not a current executable; there are no breakpoints to which to add commands"); result.SetStatus (eReturnStatusFailed); return false; } const BreakpointList &breakpoints = target->GetBreakpointList(); size_t num_breakpoints = breakpoints.GetSize(); if (num_breakpoints == 0) { result.AppendError ("No breakpoints exist to have commands added"); result.SetStatus (eReturnStatusFailed); return false; } if (m_options.m_use_script_language == false && m_options.m_function_name.size()) { result.AppendError ("need to enable scripting to have a function run as a breakpoint command"); result.SetStatus (eReturnStatusFailed); return false; } BreakpointIDList valid_bp_ids; CommandObjectMultiwordBreakpoint::VerifyBreakpointOrLocationIDs (command, target, result, &valid_bp_ids); m_bp_options_vec.clear(); if (result.Succeeded()) { const size_t count = valid_bp_ids.GetSize(); for (size_t i = 0; i < count; ++i) { BreakpointID cur_bp_id = valid_bp_ids.GetBreakpointIDAtIndex (i); if (cur_bp_id.GetBreakpointID() != LLDB_INVALID_BREAK_ID) { Breakpoint *bp = target->GetBreakpointByID (cur_bp_id.GetBreakpointID()).get(); BreakpointOptions *bp_options = NULL; if (cur_bp_id.GetLocationID() == LLDB_INVALID_BREAK_ID) { // This breakpoint does not have an associated location. bp_options = bp->GetOptions(); } else { BreakpointLocationSP bp_loc_sp(bp->FindLocationByID (cur_bp_id.GetLocationID())); // This breakpoint does have an associated location. // Get its breakpoint options. if (bp_loc_sp) bp_options = bp_loc_sp->GetLocationOptions(); } if (bp_options) m_bp_options_vec.push_back (bp_options); } } // If we are using script language, get the script interpreter // in order to set or collect command callback. Otherwise, call // the methods associated with this object. if (m_options.m_use_script_language) { ScriptInterpreter *script_interp = m_interpreter.GetScriptInterpreter(); // Special handling for one-liner specified inline. if (m_options.m_use_one_liner) { script_interp->SetBreakpointCommandCallback (m_bp_options_vec, m_options.m_one_liner.c_str()); } else if (m_options.m_function_name.size()) { script_interp->SetBreakpointCommandCallbackFunction (m_bp_options_vec, m_options.m_function_name.c_str()); } else { script_interp->CollectDataForBreakpointCommandCallback (m_bp_options_vec, result); } } else { // Special handling for one-liner specified inline. if (m_options.m_use_one_liner) SetBreakpointCommandCallback (m_bp_options_vec, m_options.m_one_liner.c_str()); else CollectDataForBreakpointCommandCallback (m_bp_options_vec, result); } } return result.Succeeded(); } private: CommandOptions m_options; std::vector m_bp_options_vec; // This stores the breakpoint options that we are currently // collecting commands for. In the CollectData... calls we need // to hand this off to the IOHandler, which may run asynchronously. // So we have to have some way to keep it alive, and not leak it. // Making it an ivar of the command object, which never goes away // achieves this. Note that if we were able to run // the same command concurrently in one interpreter we'd have to // make this "per invocation". But there are many more reasons // why it is not in general safe to do that in lldb at present, // so it isn't worthwhile to come up with a more complex mechanism // to address this particular weakness right now. static const char *g_reader_instructions; }; const char * CommandObjectBreakpointCommandAdd::g_reader_instructions = "Enter your debugger command(s). Type 'DONE' to end.\n"; // FIXME: "script-type" needs to have its contents determined dynamically, so somebody can add a new scripting // language to lldb and have it pickable here without having to change this enumeration by hand and rebuild lldb proper. static OptionEnumValueElement g_script_option_enumeration[4] = { { eScriptLanguageNone, "command", "Commands are in the lldb command interpreter language"}, { eScriptLanguagePython, "python", "Commands are in the Python language."}, { eSortOrderByName, "default-script", "Commands are in the default scripting language."}, { 0, NULL, NULL } }; OptionDefinition CommandObjectBreakpointCommandAdd::CommandOptions::g_option_table[] = { { LLDB_OPT_SET_1, false, "one-liner", 'o', OptionParser::eRequiredArgument, NULL, NULL, 0, eArgTypeOneLiner, "Specify a one-line breakpoint command inline. Be sure to surround it with quotes." }, { LLDB_OPT_SET_ALL, false, "stop-on-error", 'e', OptionParser::eRequiredArgument, NULL, NULL, 0, eArgTypeBoolean, "Specify whether breakpoint command execution should terminate on error." }, { LLDB_OPT_SET_ALL, false, "script-type", 's', OptionParser::eRequiredArgument, NULL, g_script_option_enumeration, 0, eArgTypeNone, "Specify the language for the commands - if none is specified, the lldb command interpreter will be used."}, { LLDB_OPT_SET_2, false, "python-function", 'F', OptionParser::eRequiredArgument, NULL, NULL, 0, eArgTypePythonFunction, "Give the name of a Python function to run as command for this breakpoint. Be sure to give a module name if appropriate."}, { LLDB_OPT_SET_ALL, false, "dummy-breakpoints", 'D', OptionParser::eNoArgument, NULL, NULL, 0, eArgTypeNone, "Sets Dummy breakpoints - i.e. breakpoints set before a file is provided, which prime new targets."}, { 0, false, NULL, 0, 0, NULL, NULL, 0, eArgTypeNone, NULL } }; //------------------------------------------------------------------------- // CommandObjectBreakpointCommandDelete //------------------------------------------------------------------------- class CommandObjectBreakpointCommandDelete : public CommandObjectParsed { public: CommandObjectBreakpointCommandDelete (CommandInterpreter &interpreter) : CommandObjectParsed (interpreter, "delete", "Delete the set of commands from a breakpoint.", NULL), m_options (interpreter) { CommandArgumentEntry arg; CommandArgumentData bp_id_arg; // Define the first (and only) variant of this arg. bp_id_arg.arg_type = eArgTypeBreakpointID; bp_id_arg.arg_repetition = eArgRepeatPlain; // There is only one variant this argument could be; put it into the argument entry. arg.push_back (bp_id_arg); // Push the data for the first argument into the m_arguments vector. m_arguments.push_back (arg); } virtual ~CommandObjectBreakpointCommandDelete () {} virtual Options * GetOptions () { return &m_options; } class CommandOptions : public Options { public: CommandOptions (CommandInterpreter &interpreter) : Options (interpreter), m_use_dummy (false) { } virtual ~CommandOptions () {} virtual Error SetOptionValue (uint32_t option_idx, const char *option_arg) { Error error; const int short_option = m_getopt_table[option_idx].val; switch (short_option) { case 'D': m_use_dummy = true; break; default: error.SetErrorStringWithFormat ("unrecognized option '%c'", short_option); break; } return error; } void OptionParsingStarting () { m_use_dummy = false; } const OptionDefinition* GetDefinitions () { return g_option_table; } // Options table: Required for subclasses of Options. static OptionDefinition g_option_table[]; // Instance variables to hold the values for command options. bool m_use_dummy; }; protected: virtual bool DoExecute (Args& command, CommandReturnObject &result) { Target *target = GetSelectedOrDummyTarget(m_options.m_use_dummy); if (target == NULL) { result.AppendError ("There is not a current executable; there are no breakpoints from which to delete commands"); result.SetStatus (eReturnStatusFailed); return false; } const BreakpointList &breakpoints = target->GetBreakpointList(); size_t num_breakpoints = breakpoints.GetSize(); if (num_breakpoints == 0) { result.AppendError ("No breakpoints exist to have commands deleted"); result.SetStatus (eReturnStatusFailed); return false; } if (command.GetArgumentCount() == 0) { result.AppendError ("No breakpoint specified from which to delete the commands"); result.SetStatus (eReturnStatusFailed); return false; } BreakpointIDList valid_bp_ids; CommandObjectMultiwordBreakpoint::VerifyBreakpointOrLocationIDs (command, target, result, &valid_bp_ids); if (result.Succeeded()) { const size_t count = valid_bp_ids.GetSize(); for (size_t i = 0; i < count; ++i) { BreakpointID cur_bp_id = valid_bp_ids.GetBreakpointIDAtIndex (i); if (cur_bp_id.GetBreakpointID() != LLDB_INVALID_BREAK_ID) { Breakpoint *bp = target->GetBreakpointByID (cur_bp_id.GetBreakpointID()).get(); if (cur_bp_id.GetLocationID() != LLDB_INVALID_BREAK_ID) { BreakpointLocationSP bp_loc_sp (bp->FindLocationByID (cur_bp_id.GetLocationID())); if (bp_loc_sp) bp_loc_sp->ClearCallback(); else { result.AppendErrorWithFormat("Invalid breakpoint ID: %u.%u.\n", cur_bp_id.GetBreakpointID(), cur_bp_id.GetLocationID()); result.SetStatus (eReturnStatusFailed); return false; } } else { bp->ClearCallback(); } } } } return result.Succeeded(); } private: CommandOptions m_options; }; OptionDefinition CommandObjectBreakpointCommandDelete::CommandOptions::g_option_table[] = { { LLDB_OPT_SET_1, false, "dummy-breakpoints", 'D', OptionParser::eNoArgument, NULL, NULL, 0, eArgTypeNone, "Delete commands from Dummy breakpoints - i.e. breakpoints set before a file is provided, which prime new targets."}, { 0, false, NULL, 0, 0, NULL, NULL, 0, eArgTypeNone, NULL } }; //------------------------------------------------------------------------- // CommandObjectBreakpointCommandList //------------------------------------------------------------------------- class CommandObjectBreakpointCommandList : public CommandObjectParsed { public: CommandObjectBreakpointCommandList (CommandInterpreter &interpreter) : CommandObjectParsed (interpreter, "list", "List the script or set of commands to be executed when the breakpoint is hit.", NULL) { CommandArgumentEntry arg; CommandArgumentData bp_id_arg; // Define the first (and only) variant of this arg. bp_id_arg.arg_type = eArgTypeBreakpointID; bp_id_arg.arg_repetition = eArgRepeatPlain; // There is only one variant this argument could be; put it into the argument entry. arg.push_back (bp_id_arg); // Push the data for the first argument into the m_arguments vector. m_arguments.push_back (arg); } virtual ~CommandObjectBreakpointCommandList () {} protected: virtual bool DoExecute (Args& command, CommandReturnObject &result) { Target *target = m_interpreter.GetDebugger().GetSelectedTarget().get(); if (target == NULL) { result.AppendError ("There is not a current executable; there are no breakpoints for which to list commands"); result.SetStatus (eReturnStatusFailed); return false; } const BreakpointList &breakpoints = target->GetBreakpointList(); size_t num_breakpoints = breakpoints.GetSize(); if (num_breakpoints == 0) { result.AppendError ("No breakpoints exist for which to list commands"); result.SetStatus (eReturnStatusFailed); return false; } if (command.GetArgumentCount() == 0) { result.AppendError ("No breakpoint specified for which to list the commands"); result.SetStatus (eReturnStatusFailed); return false; } BreakpointIDList valid_bp_ids; CommandObjectMultiwordBreakpoint::VerifyBreakpointOrLocationIDs (command, target, result, &valid_bp_ids); if (result.Succeeded()) { const size_t count = valid_bp_ids.GetSize(); for (size_t i = 0; i < count; ++i) { BreakpointID cur_bp_id = valid_bp_ids.GetBreakpointIDAtIndex (i); if (cur_bp_id.GetBreakpointID() != LLDB_INVALID_BREAK_ID) { Breakpoint *bp = target->GetBreakpointByID (cur_bp_id.GetBreakpointID()).get(); if (bp) { const BreakpointOptions *bp_options = NULL; if (cur_bp_id.GetLocationID() != LLDB_INVALID_BREAK_ID) { BreakpointLocationSP bp_loc_sp(bp->FindLocationByID (cur_bp_id.GetLocationID())); if (bp_loc_sp) bp_options = bp_loc_sp->GetOptionsNoCreate(); else { result.AppendErrorWithFormat("Invalid breakpoint ID: %u.%u.\n", cur_bp_id.GetBreakpointID(), cur_bp_id.GetLocationID()); result.SetStatus (eReturnStatusFailed); return false; } } else { bp_options = bp->GetOptions(); } if (bp_options) { StreamString id_str; BreakpointID::GetCanonicalReference (&id_str, cur_bp_id.GetBreakpointID(), cur_bp_id.GetLocationID()); const Baton *baton = bp_options->GetBaton(); if (baton) { result.GetOutputStream().Printf ("Breakpoint %s:\n", id_str.GetData()); result.GetOutputStream().IndentMore (); baton->GetDescription(&result.GetOutputStream(), eDescriptionLevelFull); result.GetOutputStream().IndentLess (); } else { result.AppendMessageWithFormat ("Breakpoint %s does not have an associated command.\n", id_str.GetData()); } } result.SetStatus (eReturnStatusSuccessFinishResult); } else { result.AppendErrorWithFormat("Invalid breakpoint ID: %u.\n", cur_bp_id.GetBreakpointID()); result.SetStatus (eReturnStatusFailed); } } } } return result.Succeeded(); } }; //------------------------------------------------------------------------- // CommandObjectBreakpointCommand //------------------------------------------------------------------------- CommandObjectBreakpointCommand::CommandObjectBreakpointCommand (CommandInterpreter &interpreter) : CommandObjectMultiword (interpreter, "command", "A set of commands for adding, removing and examining bits of code to be executed when the breakpoint is hit (breakpoint 'commands').", "command [] ") { CommandObjectSP add_command_object (new CommandObjectBreakpointCommandAdd (interpreter)); CommandObjectSP delete_command_object (new CommandObjectBreakpointCommandDelete (interpreter)); CommandObjectSP list_command_object (new CommandObjectBreakpointCommandList (interpreter)); add_command_object->SetCommandName ("breakpoint command add"); delete_command_object->SetCommandName ("breakpoint command delete"); list_command_object->SetCommandName ("breakpoint command list"); LoadSubCommand ("add", add_command_object); LoadSubCommand ("delete", delete_command_object); LoadSubCommand ("list", list_command_object); } CommandObjectBreakpointCommand::~CommandObjectBreakpointCommand () { }