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360 lines
12 KiB
360 lines
12 KiB
/***************************************************************************
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gdbcontroller.h - description
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-------------------
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begin : Sun Aug 8 1999
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copyright : (C) 1999 by John Birch
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email : jbb@tdevelop.org
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***************************************************************************/
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/***************************************************************************
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* *
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* This program is free software; you can redistribute it and/or modify *
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* it under the terms of the GNU General Public License as published by *
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* the Free Software Foundation; either version 2 of the License, or *
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* (at your option) any later version. *
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* *
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***************************************************************************/
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#ifndef _GDBCONTROLLER_H_
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#define _GDBCONTROLLER_H_
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#include "dbgcontroller.h"
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#include "mi/gdbmi.h"
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#include "mi/miparser.h"
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#include <tqcstring.h>
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#include <tqdom.h>
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#include <tqobject.h>
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#include <tqptrlist.h>
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#include <tqstring.h>
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#include <tqmap.h>
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#include <tqdatetime.h>
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#include <memory>
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#include <set>
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class KProcess;
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namespace GDBDebugger
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{
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class Breakpoint;
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class DbgCommand;
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class GDBCommand;
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class VarItem;
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class STTY;
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/**
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* A front end implementation to the gdb command line debugger
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* @author jbb
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*/
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class GDBController : public DbgController
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{
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Q_OBJECT
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TQ_OBJECT
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public:
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GDBController(TQDomDocument &projectDom);
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~GDBController();
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enum event_t { program_state_changed = 1, program_exited, debugger_exited,
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thread_or_frame_changed, debugger_busy, debugger_ready,
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shared_library_loaded,
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// Raised when debugger believe that program start running.
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// Can be used to hide current line indicator.
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// Don't count on this being raise in all cases where
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// program is running.
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program_running,
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connected_to_program
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};
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/** Adds a command to the end of queue of commands to be executed
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by gdb. The command will be actually sent to gdb only when
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replies from all previous commands are received and full processed.
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The literal command sent to gdb is obtained by calling
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cmd->cmdToSend. The call is made immediately before sending the
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command, so it's possible to use results of prior commands when
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computing the exact command to send.
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*/
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void addCommand(GDBCommand* cmd);
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/** Same as above, but internally constructs new GDBCommand
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instance from the string. */
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void addCommand(const TQString& cmd);
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/** Adds command to the front of the commands queue. It will be executed
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next.
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This is usefull to implement 'atomic' command sequences. For example,
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if one wants to switch to each thread in turn, asking gdb where that
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thread stand, this should never be interrupted by other command, since
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other commands might not expect that thread magically changes.
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In this specific case, first -thread-list-ids commands is issued. The
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handler for reply will add a number of command to front, and it will
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guarantee that no other command will get in between.
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Note that if you call:
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addCommandToFront(cmd1);
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addCommandToFront(cmd2);
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The execution order will be 'cmd2', then 'cmd1'.
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FIXME: is not used for now, maybe remove.
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*/
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void addCommandToFront(GDBCommand* cmd);
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/* If current command queue has any command
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for which isRun is true, inserts 'cmd'
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before the first such command. Otherwise,
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works the same as addCommand. */
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void addCommandBeforeRun(GDBCommand* cmd);
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/** Selects the specified thread/frame. Immediately emits
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thread_or_frame_changed event.
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*/
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void selectFrame(int frameNo, int threadNo);
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/** Returns the numerical identfier of the current thread,
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or -1 if the program is not threaded (i.e. there's just
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one thread.
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*/
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int currentThread() const;
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int currentFrame() const;
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bool start(const TQString& shell,
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const DomUtil::PairList& run_envvars,
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const TQString& run_directory,
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const TQString &application,
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const TQString& run_arguments);
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int qtVersion() const;
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/**
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* Call this when something very interesting happens that the user
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* might be unaware of. It will make KDevelop's taskbar entry flash
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* if the application doesn't already have focus.
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* Typical use case: The debugger has stopped on a breakpoint.
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*/
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void demandAttention() const;
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void pauseApp();
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bool miPendingBreakpoints() const;
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protected:
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enum queue_where { queue_at_end, queue_at_front, queue_before_run };
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void queueCmd(GDBCommand *cmd, enum queue_where queue_where = queue_at_end);
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private:
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void parseLocals (char type, char *buf);
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/** Parses the CLI output line, and catches interesting messages
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like "Program exited". This is intended to allow using console
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commands in the gdb window despite the fact that GDB does not
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produce right MI notification for CLI commands. I.e. if you
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run "continue" there will be no MI message if the application has
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exited.
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*/
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void parseCliLine (const TQString&);
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/** Handles a result response from a MI command -- that is
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all MI responses except for Stream and Prompt responses.
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Uses currentCmd to decide what to do with response and
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calls appropriate method.
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*/
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void processMICommandResponse(const GDBMI::ResultRecord& r);
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void handleMiFileListExecSourceFile(const GDBMI::ResultRecord& r);
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/** Handles reply from -stack-info-frame command issues
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after switching the stack frame.
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*/
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void handleMiFrameSwitch(const GDBMI::ResultRecord& r);
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void executeCmd ();
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void destroyCmds();
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void removeInfoRequests();
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void actOnProgramPauseMI(const GDBMI::ResultRecord& mi_record);
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/** Called when there are no pending commands and 'state_reload_needed'
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is true.
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Issues commands to completely reload all program state shown
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to the user.
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*/
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void reloadProgramState();
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void programNoApp(const TQString &msg, bool msgBox);
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void setStateOn(int stateOn);
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void setStateOff(int stateOff);
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void setState(int newState);
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void debugStateChange(int oldState, int newState);
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void commandDone();
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void destroyCurrentCommand();
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/** Removes all 'stateReloading' commands from the queue.
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*/
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void removeStateReloadingCommands();
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/** Raises the specified event. Should be used instead of
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emitting 'event' directly, since this method can perform
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additional book-keeping for events.
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*/
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void raiseEvent(event_t e);
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void maybeAnnounceWatchpointHit();
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void handleListFeatures(const GDBMI::ResultRecord& result);
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void startDone();
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/** Default handler for errors.
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Tries to guess is the error message is telling that target is
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gone, if so, informs the user.
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Otherwise, shows a dialog box and reloads view state. */
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void defaultErrorHandler(const GDBMI::ResultRecord& result);
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public:
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bool stateIsOn(int state);
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public slots:
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void configure();
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//void slotStart(const TQString& shell, const TQString &application);
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void slotCoreFile(const TQString &coreFile);
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void slotAttachTo(int pid);
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void slotStopDebugger();
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void slotRun();
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void slotKill();
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void slotRunUntil(const TQString &filename, int lineNum);
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void slotJumpTo(const TQString &filename, int lineNum);
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void slotStepInto();
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void slotStepOver();
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void slotStepIntoIns();
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void slotStepOverIns();
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void slotStepOutOff();
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void slotBreakInto();
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void slotUserGDBCmd(const TQString&);
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// Pops up a dialog box with some hopefully
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// detailed information about which state debugger
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// is in, which commands were sent and so on.
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void explainDebuggerStatus();
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protected slots:
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void slotDbgStdout(KProcess *proc, char *buf, int buflen);
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void slotDbgStderr(KProcess *proc, char *buf, int buflen);
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void slotDbgWroteStdin(KProcess *proc);
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void slotDbgProcessExited(KProcess *proc);
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signals:
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/** This signal is emitted whenever the given event in a program
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happens. See DESIGN.txt for expected handled of each event.
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NOTE: this signal should never be emitted directly. Instead,
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use raiseEvent.
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*/
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void event(GDBController::event_t e);
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void debuggerAbnormalExit();
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/** Emitted immediately after breakpoint is hit, before any commands
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are sent and before current line indicator is shown. */
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void breakpointHit(int id);
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/** Emitted for watchpoint hit, after line indicator is shown. */
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void watchpointHit(int id,
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const TQString& oldValue, const TQString& newValue);
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private:
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int currentFrame_;
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int viewedThread_;
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// The output from gdb that was not parsed yet
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TQCString gdbOutput_;
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// The output from gdb that arrived where we was
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// parsing the previous output. To avoid messing
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// things up, it's not directly added to
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// gdbOutput_ but stored for future use.
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// VP: It's not clear why the previous code was doing
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// this, and holdingZone_ won't be processed until
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// next output arrives, so probably should be just removed.
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TQCString holdingZone_;
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TQPtrList<GDBCommand> cmdList_;
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GDBCommand* currentCmd_;
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STTY* tty_;
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TQString badCore_;
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TQString application_;
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// Gdb command that should be issued when we stop on breakpoint
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// with the given gdb breakpoint id.
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TQMap<int, const Breakpoint*> tracedBreakpoints_;
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// Some state variables
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int state_;
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bool programHasExited_;
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// Configuration values
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TQDomDocument &dom;
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bool config_breakOnLoadingLibrary_;
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bool config_forceBPSet_;
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bool config_displayStaticMembers_;
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bool config_asmDemangle_;
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bool config_dbgTerminal_;
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TQString config_gdbPath_;
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TQString config_dbgShell_;
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TQCString config_configGdbScript_;
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TQCString config_runShellScript_;
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TQCString config_runGdbScript_;
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int config_outputRadix_;
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MIParser mi_parser_;
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// As of gdb 6.3, the *stopped packet does not contain
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// full file name. So we need to send another command to
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// fetch that, to highlight current line.
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// After highting current line we need to do something more,
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// like announcing write watchpoints, and so need to have
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// access to the stop packet. So store it here.
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std::auto_ptr<GDBMI::ResultRecord> last_stop_result;
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// Gdb 6.4 (and 6.3) does not support "character" format with MI,
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// so the only way it can work is via the "print" command. As gdb
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// outputs things, we'll grep for lines that look like output from
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// print, and store such lines in this variable, so later use.
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TQCString print_command_result;
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bool state_reload_needed;
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TQTime commandExecutionTime;
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bool stateReloadInProgress_;
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/** Commands issues as result of the 'program_state_changed'
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event. */
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std::set<GDBCommand*> stateReloadingCommands_;
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bool saw_gdb_prompt_;
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/** Does the used GDB supports pending breakpoints in MI? */
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bool mi_pending_breakpoints_;
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};
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}
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#endif
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