| //===-- CommandObjectWatchpointCommand.cpp ----------------------*- C++ -*-===// |
| // |
| // The LLVM Compiler Infrastructure |
| // |
| // This file is distributed under the University of Illinois Open Source |
| // License. See LICENSE.TXT for details. |
| // |
| //===----------------------------------------------------------------------===// |
| |
| #include "lldb/lldb-python.h" |
| |
| // C Includes |
| // C++ Includes |
| |
| |
| #include "CommandObjectWatchpointCommand.h" |
| #include "CommandObjectWatchpoint.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/Watchpoint.h" |
| #include "lldb/Breakpoint/StoppointCallbackContext.h" |
| #include "lldb/Core/State.h" |
| |
| #include <vector> |
| |
| using namespace lldb; |
| using namespace lldb_private; |
| |
| //------------------------------------------------------------------------- |
| // CommandObjectWatchpointCommandAdd |
| //------------------------------------------------------------------------- |
| |
| |
| class CommandObjectWatchpointCommandAdd : |
| public CommandObjectParsed, |
| public IOHandlerDelegateMultiline |
| { |
| public: |
| |
| CommandObjectWatchpointCommandAdd (CommandInterpreter &interpreter) : |
| CommandObjectParsed (interpreter, |
| "add", |
| "Add a set of commands to a watchpoint, to be executed whenever the watchpoint is hit.", |
| NULL), |
| IOHandlerDelegateMultiline("DONE", IOHandlerDelegate::Completion::LLDBCommand), |
| m_options (interpreter) |
| { |
| SetHelpLong ( |
| "\nGeneral information about entering watchpoint commands \n\ |
| ------------------------------------------------------ \n\ |
| \n\ |
| This command will cause you to be prompted to enter the command or set \n\ |
| of commands you wish to be executed when the specified watchpoint is \n\ |
| hit. You will be told to enter your command(s), and will see a '> ' \n\ |
| prompt. Because you can enter one or many commands to be executed when \n\ |
| a watchpoint is hit, you will continue to be prompted after each \n\ |
| new-line that you enter, until you enter the word 'DONE', which will \n\ |
| cause the commands you have entered to be stored with the watchpoint \n\ |
| and executed when the watchpoint is hit. \n\ |
| \n\ |
| Syntax checking is not necessarily done when watchpoint commands are \n\ |
| entered. An improperly written watchpoint command will attempt to get \n\ |
| executed when the watchpoint gets hit, and usually silently fail. If \n\ |
| your watchpoint command does not appear to be getting executed, go \n\ |
| back and check your syntax. \n\ |
| \n\ |
| \n\ |
| Special information about PYTHON watchpoint commands \n\ |
| ---------------------------------------------------- \n\ |
| \n\ |
| You may enter either one line of Python or multiple lines of Python \n\ |
| (including defining whole functions, if desired). If you enter a \n\ |
| single line of Python, that will be passed to the Python interpreter \n\ |
| 'as is' when the watchpoint gets hit. If you enter function \n\ |
| definitions, they will be passed to the Python interpreter as soon as \n\ |
| you finish entering the watchpoint command, and they can be called \n\ |
| later (don't forget to add calls to them, if you want them called when \n\ |
| the watchpoint is hit). If you enter multiple lines of Python that \n\ |
| are not function definitions, they will be collected into a new, \n\ |
| automatically generated Python function, and a call to the newly \n\ |
| generated function will be attached to the watchpoint. \n\ |
| \n\ |
| This auto-generated function is passed in two arguments: \n\ |
| \n\ |
| frame: an SBFrame object representing the frame which hit the watchpoint. \n\ |
| From the frame you can get back to the thread and process. \n\ |
| wp: the watchpoint that was hit. \n\ |
| \n\ |
| Important Note: Because loose Python code gets collected into functions, \n\ |
| if you want to access global variables in the 'loose' code, you need to \n\ |
| specify that they are global, using the 'global' keyword. Be sure to \n\ |
| use correct Python syntax, including indentation, when entering Python \n\ |
| watchpoint commands. \n\ |
| \n\ |
| As a third option, you can pass the name of an already existing Python function \n\ |
| and that function will be attached to the watchpoint. It will get passed the \n\ |
| frame and wp_loc arguments mentioned above. \n\ |
| \n\ |
| Example Python one-line watchpoint command: \n\ |
| \n\ |
| (lldb) watchpoint command add -s python 1 \n\ |
| Enter your Python command(s). Type 'DONE' to end. \n\ |
| > print \"Hit this watchpoint!\" \n\ |
| > DONE \n\ |
| \n\ |
| As a convenience, this also works for a short Python one-liner: \n\ |
| (lldb) watchpoint command add -s python 1 -o \"import time; print time.asctime()\" \n\ |
| (lldb) run \n\ |
| Launching '.../a.out' (x86_64) \n\ |
| (lldb) Fri Sep 10 12:17:45 2010 \n\ |
| Process 21778 Stopped \n\ |
| * thread #1: tid = 0x2e03, 0x0000000100000de8 a.out`c + 7 at main.c:39, stop reason = watchpoint 1.1, queue = com.apple.main-thread \n\ |
| 36 \n\ |
| 37 int c(int val)\n\ |
| 38 {\n\ |
| 39 -> return val + 3;\n\ |
| 40 }\n\ |
| 41 \n\ |
| 42 int main (int argc, char const *argv[])\n\ |
| (lldb) \n\ |
| \n\ |
| Example multiple line Python watchpoint command, using function definition: \n\ |
| \n\ |
| (lldb) watchpoint command add -s python 1 \n\ |
| Enter your Python command(s). Type 'DONE' to end. \n\ |
| > def watchpoint_output (wp_no): \n\ |
| > out_string = \"Hit watchpoint number \" + repr (wp_no) \n\ |
| > print out_string \n\ |
| > return True \n\ |
| > watchpoint_output (1) \n\ |
| > DONE \n\ |
| \n\ |
| \n\ |
| Example multiple line Python watchpoint command, using 'loose' Python: \n\ |
| \n\ |
| (lldb) watchpoint command add -s p 1 \n\ |
| Enter your Python command(s). Type 'DONE' to end. \n\ |
| > global wp_count \n\ |
| > wp_count = wp_count + 1 \n\ |
| > print \"Hit this watchpoint \" + repr(wp_count) + \" times!\" \n\ |
| > DONE \n\ |
| \n\ |
| In this case, since there is a reference to a global variable, \n\ |
| 'wp_count', you will also need to make sure 'wp_count' exists and is \n\ |
| initialized: \n\ |
| \n\ |
| (lldb) script \n\ |
| >>> wp_count = 0 \n\ |
| >>> quit() \n\ |
| \n\ |
| (lldb) \n\ |
| \n\ |
| \n\ |
| Final Note: If you get a warning that no watchpoint command was generated, \n\ |
| but you did not get any syntax errors, you probably forgot to add a call \n\ |
| to your functions. \n\ |
| \n\ |
| Special information about debugger command watchpoint commands \n\ |
| -------------------------------------------------------------- \n\ |
| \n\ |
| You may enter any debugger command, exactly as you would at the \n\ |
| debugger prompt. You may enter as many debugger commands as you like, \n\ |
| but do NOT enter more than one command per line. \n" ); |
| |
| CommandArgumentEntry arg; |
| CommandArgumentData wp_id_arg; |
| |
| // Define the first (and only) variant of this arg. |
| wp_id_arg.arg_type = eArgTypeWatchpointID; |
| wp_id_arg.arg_repetition = eArgRepeatPlain; |
| |
| // There is only one variant this argument could be; put it into the argument entry. |
| arg.push_back (wp_id_arg); |
| |
| // Push the data for the first argument into the m_arguments vector. |
| m_arguments.push_back (arg); |
| } |
| |
| virtual |
| ~CommandObjectWatchpointCommandAdd () {} |
| |
| virtual Options * |
| GetOptions () |
| { |
| return &m_options; |
| } |
| |
| virtual void |
| IOHandlerActivated (IOHandler &io_handler) |
| { |
| StreamFileSP output_sp(io_handler.GetOutputStreamFile()); |
| if (output_sp) |
| { |
| output_sp->PutCString("Enter your debugger command(s). Type 'DONE' to end.\n"); |
| output_sp->Flush(); |
| } |
| } |
| |
| |
| virtual void |
| IOHandlerInputComplete (IOHandler &io_handler, std::string &line) |
| { |
| io_handler.SetIsDone(true); |
| |
| // The WatchpointOptions object is owned by the watchpoint or watchpoint location |
| WatchpointOptions *wp_options = (WatchpointOptions *) io_handler.GetUserData(); |
| if (wp_options) |
| { |
| std::unique_ptr<WatchpointOptions::CommandData> data_ap(new WatchpointOptions::CommandData()); |
| if (data_ap.get()) |
| { |
| data_ap->user_source.SplitIntoLines(line); |
| BatonSP baton_sp (new WatchpointOptions::CommandBaton (data_ap.release())); |
| wp_options->SetCallback (WatchpointOptionsCallbackFunction, baton_sp); |
| } |
| } |
| } |
| |
| void |
| CollectDataForWatchpointCommandCallback (WatchpointOptions *wp_options, |
| CommandReturnObject &result) |
| { |
| m_interpreter.GetLLDBCommandsFromIOHandler ("> ", // Prompt |
| *this, // IOHandlerDelegate |
| true, // Run IOHandler in async mode |
| wp_options); // Baton for the "io_handler" that will be passed back into our IOHandlerDelegate functions |
| } |
| |
| /// Set a one-liner as the callback for the watchpoint. |
| void |
| SetWatchpointCommandCallback (WatchpointOptions *wp_options, |
| const char *oneliner) |
| { |
| std::unique_ptr<WatchpointOptions::CommandData> data_ap(new WatchpointOptions::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 watchpoint 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 WatchpointOptions::CommandBaton (data_ap.release())); |
| wp_options->SetCallback (WatchpointOptionsCallbackFunction, baton_sp); |
| |
| return; |
| } |
| |
| static bool |
| WatchpointOptionsCallbackFunction (void *baton, |
| StoppointCallbackContext *context, |
| lldb::user_id_t watch_id) |
| { |
| bool ret_value = true; |
| if (baton == NULL) |
| return true; |
| |
| |
| WatchpointOptions::CommandData *data = (WatchpointOptions::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 (false); |
| 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; |
| |
| 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(); |
| } |
| |
| 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; |
| }; |
| |
| 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 watchpoints to which to add commands"); |
| result.SetStatus (eReturnStatusFailed); |
| return false; |
| } |
| |
| const WatchpointList &watchpoints = target->GetWatchpointList(); |
| size_t num_watchpoints = watchpoints.GetSize(); |
| |
| if (num_watchpoints == 0) |
| { |
| result.AppendError ("No watchpoints 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 watchpoint command"); |
| result.SetStatus (eReturnStatusFailed); |
| return false; |
| } |
| |
| std::vector<uint32_t> valid_wp_ids; |
| if (!CommandObjectMultiwordWatchpoint::VerifyWatchpointIDs(target, command, valid_wp_ids)) |
| { |
| result.AppendError("Invalid watchpoints specification."); |
| result.SetStatus(eReturnStatusFailed); |
| return false; |
| } |
| |
| result.SetStatus(eReturnStatusSuccessFinishNoResult); |
| const size_t count = valid_wp_ids.size(); |
| for (size_t i = 0; i < count; ++i) |
| { |
| uint32_t cur_wp_id = valid_wp_ids.at (i); |
| if (cur_wp_id != LLDB_INVALID_WATCH_ID) |
| { |
| Watchpoint *wp = target->GetWatchpointList().FindByID (cur_wp_id).get(); |
| // Sanity check wp first. |
| if (wp == NULL) continue; |
| |
| WatchpointOptions *wp_options = wp->GetOptions(); |
| // Skip this watchpoint if wp_options is not good. |
| if (wp_options == NULL) continue; |
| |
| // 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) |
| { |
| // Special handling for one-liner specified inline. |
| if (m_options.m_use_one_liner) |
| { |
| m_interpreter.GetScriptInterpreter()->SetWatchpointCommandCallback (wp_options, |
| m_options.m_one_liner.c_str()); |
| } |
| // Special handling for using a Python function by name |
| // instead of extending the watchpoint callback data structures, we just automatize |
| // what the user would do manually: make their watchpoint command be a function call |
| else if (m_options.m_function_name.size()) |
| { |
| std::string oneliner(m_options.m_function_name); |
| oneliner += "(frame, wp, internal_dict)"; |
| m_interpreter.GetScriptInterpreter()->SetWatchpointCommandCallback (wp_options, |
| oneliner.c_str()); |
| } |
| else |
| { |
| m_interpreter.GetScriptInterpreter()->CollectDataForWatchpointCommandCallback (wp_options, |
| result); |
| } |
| } |
| else |
| { |
| // Special handling for one-liner specified inline. |
| if (m_options.m_use_one_liner) |
| SetWatchpointCommandCallback (wp_options, |
| m_options.m_one_liner.c_str()); |
| else |
| CollectDataForWatchpointCommandCallback (wp_options, |
| result); |
| } |
| } |
| } |
| |
| return result.Succeeded(); |
| } |
| |
| private: |
| CommandOptions m_options; |
| }; |
| |
| |
| // 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 |
| CommandObjectWatchpointCommandAdd::CommandOptions::g_option_table[] = |
| { |
| { LLDB_OPT_SET_1, false, "one-liner", 'o', OptionParser::eRequiredArgument, NULL, NULL, 0, eArgTypeOneLiner, |
| "Specify a one-line watchpoint 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 watchpoint 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 watchpoint. Be sure to give a module name if appropriate."}, |
| |
| { 0, false, NULL, 0, 0, NULL, NULL, 0, eArgTypeNone, NULL } |
| }; |
| |
| //------------------------------------------------------------------------- |
| // CommandObjectWatchpointCommandDelete |
| //------------------------------------------------------------------------- |
| |
| class CommandObjectWatchpointCommandDelete : public CommandObjectParsed |
| { |
| public: |
| CommandObjectWatchpointCommandDelete (CommandInterpreter &interpreter) : |
| CommandObjectParsed (interpreter, |
| "delete", |
| "Delete the set of commands from a watchpoint.", |
| NULL) |
| { |
| CommandArgumentEntry arg; |
| CommandArgumentData wp_id_arg; |
| |
| // Define the first (and only) variant of this arg. |
| wp_id_arg.arg_type = eArgTypeWatchpointID; |
| wp_id_arg.arg_repetition = eArgRepeatPlain; |
| |
| // There is only one variant this argument could be; put it into the argument entry. |
| arg.push_back (wp_id_arg); |
| |
| // Push the data for the first argument into the m_arguments vector. |
| m_arguments.push_back (arg); |
| } |
| |
| |
| virtual |
| ~CommandObjectWatchpointCommandDelete () {} |
| |
| 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 watchpoints from which to delete commands"); |
| result.SetStatus (eReturnStatusFailed); |
| return false; |
| } |
| |
| const WatchpointList &watchpoints = target->GetWatchpointList(); |
| size_t num_watchpoints = watchpoints.GetSize(); |
| |
| if (num_watchpoints == 0) |
| { |
| result.AppendError ("No watchpoints exist to have commands deleted"); |
| result.SetStatus (eReturnStatusFailed); |
| return false; |
| } |
| |
| if (command.GetArgumentCount() == 0) |
| { |
| result.AppendError ("No watchpoint specified from which to delete the commands"); |
| result.SetStatus (eReturnStatusFailed); |
| return false; |
| } |
| |
| std::vector<uint32_t> valid_wp_ids; |
| if (!CommandObjectMultiwordWatchpoint::VerifyWatchpointIDs(target, command, valid_wp_ids)) |
| { |
| result.AppendError("Invalid watchpoints specification."); |
| result.SetStatus(eReturnStatusFailed); |
| return false; |
| } |
| |
| result.SetStatus(eReturnStatusSuccessFinishNoResult); |
| const size_t count = valid_wp_ids.size(); |
| for (size_t i = 0; i < count; ++i) |
| { |
| uint32_t cur_wp_id = valid_wp_ids.at (i); |
| if (cur_wp_id != LLDB_INVALID_WATCH_ID) |
| { |
| Watchpoint *wp = target->GetWatchpointList().FindByID (cur_wp_id).get(); |
| if (wp) |
| wp->ClearCallback(); |
| } |
| else |
| { |
| result.AppendErrorWithFormat("Invalid watchpoint ID: %u.\n", |
| cur_wp_id); |
| result.SetStatus (eReturnStatusFailed); |
| return false; |
| } |
| } |
| return result.Succeeded(); |
| } |
| }; |
| |
| //------------------------------------------------------------------------- |
| // CommandObjectWatchpointCommandList |
| //------------------------------------------------------------------------- |
| |
| class CommandObjectWatchpointCommandList : public CommandObjectParsed |
| { |
| public: |
| CommandObjectWatchpointCommandList (CommandInterpreter &interpreter) : |
| CommandObjectParsed (interpreter, |
| "list", |
| "List the script or set of commands to be executed when the watchpoint is hit.", |
| NULL) |
| { |
| CommandArgumentEntry arg; |
| CommandArgumentData wp_id_arg; |
| |
| // Define the first (and only) variant of this arg. |
| wp_id_arg.arg_type = eArgTypeWatchpointID; |
| wp_id_arg.arg_repetition = eArgRepeatPlain; |
| |
| // There is only one variant this argument could be; put it into the argument entry. |
| arg.push_back (wp_id_arg); |
| |
| // Push the data for the first argument into the m_arguments vector. |
| m_arguments.push_back (arg); |
| } |
| |
| virtual |
| ~CommandObjectWatchpointCommandList () {} |
| |
| 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 watchpoints for which to list commands"); |
| result.SetStatus (eReturnStatusFailed); |
| return false; |
| } |
| |
| const WatchpointList &watchpoints = target->GetWatchpointList(); |
| size_t num_watchpoints = watchpoints.GetSize(); |
| |
| if (num_watchpoints == 0) |
| { |
| result.AppendError ("No watchpoints exist for which to list commands"); |
| result.SetStatus (eReturnStatusFailed); |
| return false; |
| } |
| |
| if (command.GetArgumentCount() == 0) |
| { |
| result.AppendError ("No watchpoint specified for which to list the commands"); |
| result.SetStatus (eReturnStatusFailed); |
| return false; |
| } |
| |
| std::vector<uint32_t> valid_wp_ids; |
| if (!CommandObjectMultiwordWatchpoint::VerifyWatchpointIDs(target, command, valid_wp_ids)) |
| { |
| result.AppendError("Invalid watchpoints specification."); |
| result.SetStatus(eReturnStatusFailed); |
| return false; |
| } |
| |
| result.SetStatus(eReturnStatusSuccessFinishNoResult); |
| const size_t count = valid_wp_ids.size(); |
| for (size_t i = 0; i < count; ++i) |
| { |
| uint32_t cur_wp_id = valid_wp_ids.at (i); |
| if (cur_wp_id != LLDB_INVALID_WATCH_ID) |
| { |
| Watchpoint *wp = target->GetWatchpointList().FindByID (cur_wp_id).get(); |
| |
| if (wp) |
| { |
| const WatchpointOptions *wp_options = wp->GetOptions(); |
| if (wp_options) |
| { |
| // Get the callback baton associated with the current watchpoint. |
| const Baton *baton = wp_options->GetBaton(); |
| if (baton) |
| { |
| result.GetOutputStream().Printf ("Watchpoint %u:\n", cur_wp_id); |
| result.GetOutputStream().IndentMore (); |
| baton->GetDescription(&result.GetOutputStream(), eDescriptionLevelFull); |
| result.GetOutputStream().IndentLess (); |
| } |
| else |
| { |
| result.AppendMessageWithFormat ("Watchpoint %u does not have an associated command.\n", |
| cur_wp_id); |
| } |
| } |
| result.SetStatus (eReturnStatusSuccessFinishResult); |
| } |
| else |
| { |
| result.AppendErrorWithFormat("Invalid watchpoint ID: %u.\n", cur_wp_id); |
| result.SetStatus (eReturnStatusFailed); |
| } |
| } |
| } |
| |
| return result.Succeeded(); |
| } |
| }; |
| |
| //------------------------------------------------------------------------- |
| // CommandObjectWatchpointCommand |
| //------------------------------------------------------------------------- |
| |
| CommandObjectWatchpointCommand::CommandObjectWatchpointCommand (CommandInterpreter &interpreter) : |
| CommandObjectMultiword (interpreter, |
| "command", |
| "A set of commands for adding, removing and examining bits of code to be executed when the watchpoint is hit (watchpoint 'commmands').", |
| "command <sub-command> [<sub-command-options>] <watchpoint-id>") |
| { |
| CommandObjectSP add_command_object (new CommandObjectWatchpointCommandAdd (interpreter)); |
| CommandObjectSP delete_command_object (new CommandObjectWatchpointCommandDelete (interpreter)); |
| CommandObjectSP list_command_object (new CommandObjectWatchpointCommandList (interpreter)); |
| |
| add_command_object->SetCommandName ("watchpoint command add"); |
| delete_command_object->SetCommandName ("watchpoint command delete"); |
| list_command_object->SetCommandName ("watchpoint command list"); |
| |
| LoadSubCommand ("add", add_command_object); |
| LoadSubCommand ("delete", delete_command_object); |
| LoadSubCommand ("list", list_command_object); |
| } |
| |
| CommandObjectWatchpointCommand::~CommandObjectWatchpointCommand () |
| { |
| } |
| |
| |