gdb/tui/tui.c - binutils-gdb - Git at Google

 /* General functions for the WDB TUI.

    Copyright 1998, 1999, 2000, 2001, 2002 Free Software Foundation,
    Inc.

    Contributed by Hewlett-Packard Company.

    This file is part of GDB.

    This program is free software; you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
    the Free Software Foundation; either version 2 of the License, or
    (at your option) any later version.

    This program is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
    GNU General Public License for more details.

    You should have received a copy of the GNU General Public License
    along with this program; if not, write to the Free Software
    Foundation, Inc., 59 Temple Place - Suite 330,
    Boston, MA 02111-1307, USA.  */

 /* FIXME: cagney/2002-02-28: The GDB coding standard indicates that
    "defs.h" should be included first.  Unfortunatly some systems
    (currently Debian GNU/Linux) include the <stdbool.h> via <curses.h>
    and they clash with "bfd.h"'s definiton of true/false.  The correct
    fix is to remove true/false from "bfd.h", however, until that
    happens, hack around it by including "config.h" and <curses.h>
    first.  */

 #include "config.h"
 #ifdef HAVE_NCURSES_H
 #include <ncurses.h>
 #else
 #ifdef HAVE_CURSES_H
 #include <curses.h>
 #endif
 #endif

 #include <stdio.h>
 #include <stdlib.h>
 #include <ctype.h>
 #include <malloc.h>
 #ifdef HAVE_TERM_H
 #include <term.h>
 #endif
 #include <signal.h>
 #include <fcntl.h>
 #include <termio.h>
 #include <setjmp.h>
 #include "defs.h"
 #include "gdbcmd.h"
 #include "tui.h"
 #include "tuiData.h"
 #include "tuiLayout.h"
 #include "tuiIO.h"
 #include "tuiRegs.h"
 #include "tuiStack.h"
 #include "tuiWin.h"
 #include "tuiSourceWin.h"
 #include "readline/readline.h"
 #include "target.h"
 #include "frame.h"
 #include "breakpoint.h"
 #include "inferior.h"

 /* Tells whether the TUI is active or not.  */
 int tui_active = 0;
 static int tui_finish_init = 1;

 /* Switch the output mode between TUI/standard gdb.  */
 static int
 tui_switch_mode (void)
 {
   if (tui_active)
     {
       tui_disable ();
       rl_prep_terminal (0);

       printf_filtered ("Left the TUI mode\n");
     }
   else
     {
       rl_deprep_terminal ();
       tui_enable ();
       printf_filtered ("Entered the TUI mode\n");
     }

   /* Clear the readline in case switching occurred in middle of something.  */
   if (rl_end)
     rl_kill_text (0, rl_end);

   /* Since we left the curses mode, the terminal mode is restored to
      some previous state.  That state may not be suitable for readline
      to work correctly (it may be restored in line mode).  We force an
      exit of the current readline so that readline is re-entered and it
      will be able to setup the terminal for its needs.  By re-entering
      in readline, we also redisplay its prompt in the non-curses mode.  */
   rl_newline (1, '\n');

   /* Make sure the \n we are returning does not repeat the last command.  */
   dont_repeat ();
   return 0;
 }

 /* Change the TUI layout to show a next layout.
    This function is bound to CTRL-X 2.  It is intended to provide
    a functionality close to the Emacs split-window command.  We always
    show two windows (src+asm), (src+regs) or (asm+regs).  */
 static int
 tui_change_windows (void)
 {
   if (!tui_active)
     tui_switch_mode ();

   if (tui_active)
     {
       TuiLayoutType new_layout;
       TuiRegisterDisplayType regs_type = TUI_UNDEFINED_REGS;

       new_layout = currentLayout ();

       /* Select a new layout to have a rolling layout behavior
 	 with always two windows (except when undefined).  */
       switch (new_layout)
 	{
 	case SRC_COMMAND:
 	  new_layout = SRC_DISASSEM_COMMAND;
 	  break;

 	case DISASSEM_COMMAND:
 	  new_layout = SRC_DISASSEM_COMMAND;
 	  break;

 	case SRC_DATA_COMMAND:
 	  new_layout = SRC_DISASSEM_COMMAND;
 	  break;

 	case SRC_DISASSEM_COMMAND:
 	  new_layout = DISASSEM_DATA_COMMAND;
 	  break;

 	case DISASSEM_DATA_COMMAND:
 	  new_layout = SRC_DATA_COMMAND;
 	  break;

 	default:
 	  new_layout = SRC_COMMAND;
 	  break;
 	}
       tuiSetLayout (new_layout, regs_type);
     }
   return 0;
 }


 /* Delete the second TUI window to only show one.  */
 static int
 tui_delete_other_windows (void)
 {
   if (!tui_active)
     tui_switch_mode ();

   if (tui_active)
     {
       TuiLayoutType new_layout;
       TuiRegisterDisplayType regs_type = TUI_UNDEFINED_REGS;

       new_layout = currentLayout ();

       /* Kill one window.  */
       switch (new_layout)
 	{
 	case SRC_COMMAND:
 	case SRC_DATA_COMMAND:
 	case SRC_DISASSEM_COMMAND:
 	default:
 	  new_layout = SRC_COMMAND;
 	  break;

 	case DISASSEM_COMMAND:
 	case DISASSEM_DATA_COMMAND:
 	  new_layout = DISASSEM_COMMAND;
 	  break;
 	}
       tuiSetLayout (new_layout, regs_type);
     }
   return 0;
 }

 /* Initialize readline and configure the keymap for the switching
    key shortcut.  */
 void
 tui_initialize_readline ()
 {
   rl_initialize ();

   rl_add_defun ("tui-switch-mode", tui_switch_mode, -1);
   rl_bind_key_in_map ('a', tui_switch_mode, emacs_ctlx_keymap);
   rl_bind_key_in_map ('A', tui_switch_mode, emacs_ctlx_keymap);
   rl_bind_key_in_map (CTRL ('A'), tui_switch_mode, emacs_ctlx_keymap);
   rl_bind_key_in_map ('1', tui_delete_other_windows, emacs_ctlx_keymap);
   rl_bind_key_in_map ('2', tui_change_windows, emacs_ctlx_keymap);
 }

 /* Enter in the tui mode (curses).
    When in normal mode, it installs the tui hooks in gdb, redirects
    the gdb output, configures the readline to work in tui mode.
    When in curses mode, it does nothing.  */
 void
 tui_enable (void)
 {
   if (tui_active)
     return;

   /* To avoid to initialize curses when gdb starts, there is a defered
      curses initialization.  This initialization is made only once
      and the first time the curses mode is entered.  */
   if (tui_finish_init)
     {
       WINDOW *w;

       w = initscr ();

       cbreak ();
       noecho ();
       /*timeout (1);*/
       nodelay(w, FALSE);
       nl();
       keypad (w, TRUE);
       rl_initialize ();
       setTermHeightTo (LINES);
       setTermWidthTo (COLS);
       def_prog_mode ();

       tuiSetLocatorContent (0);
       showLayout (SRC_COMMAND);
       tuiSetWinFocusTo (srcWin);
       keypad (cmdWin->generic.handle, TRUE);
       wrefresh (cmdWin->generic.handle);
       tui_finish_init = 0;
     }
   else
     {
      /* Save the current gdb setting of the terminal.
         Curses will restore this state when endwin() is called.  */
      def_shell_mode ();
      clearok (stdscr, TRUE);
    }

   /* Install the TUI specific hooks.  */
   tui_install_hooks ();

   tui_update_variables ();

   tui_setup_io (1);

   tui_version = 1;
   tui_active = 1;
   refresh ();
 }

 /* Leave the tui mode.
    Remove the tui hooks and configure the gdb output and readline
    back to their original state.  The curses mode is left so that
    the terminal setting is restored to the point when we entered.  */
 void
 tui_disable (void)
 {
   if (!tui_active)
     return;

   /* Remove TUI hooks.  */
   tui_remove_hooks ();

   /* Leave curses and restore previous gdb terminal setting.  */
   endwin ();

   /* gdb terminal has changed, update gdb internal copy of it
      so that terminal management with the inferior works.  */
   tui_setup_io (0);

   tui_version = 0;
   tui_active = 0;
 }

 /* Wrapper on top of free() to ensure that input address
    is greater than 0x0.  */
 void
 tuiFree (char *ptr)
 {
   if (ptr != (char *) NULL)
     {
       xfree (ptr);
     }
 }

 /* Determine what the low address will be to display in the TUI's
    disassembly window.  This may or may not be the same as the
    low address input.  */
 CORE_ADDR
 tuiGetLowDisassemblyAddress (CORE_ADDR low, CORE_ADDR pc)
 {
   int line;
   CORE_ADDR newLow;

   /* Determine where to start the disassembly so that the pc is about in the
      middle of the viewport.  */
   for (line = 0, newLow = pc;
        (newLow > low &&
 	line < (tuiDefaultWinViewportHeight (DISASSEM_WIN,
 					     DISASSEM_COMMAND) / 2));)
     {
       bfd_byte buffer[4];

       newLow -= sizeof (bfd_getb32 (buffer));
       line++;
     }

   return newLow;
 }

 void
 strcat_to_buf (char *buf, int buflen, char *itemToAdd)
 {
   if (itemToAdd != (char *) NULL && buf != (char *) NULL)
     {
       if ((strlen (buf) + strlen (itemToAdd)) <= buflen)
 	strcat (buf, itemToAdd);
       else
 	strncat (buf, itemToAdd, (buflen - strlen (buf)));
     }
 }

 #if 0
 /* Solaris <sys/termios.h> defines CTRL. */
 #ifndef CTRL
 #define CTRL(x)         (x & ~0140)
 #endif

 #define FILEDES         2
 #define CHK(val, dft)   (val<=0 ? dft : val)

 static void
 _tuiReset (void)
 {
   struct termio mode;

   /*
      ** reset the teletype mode bits to a sensible state.
      ** Copied tset.c
    */
 #if ! defined (USG) && defined (TIOCGETC)
   struct tchars tbuf;
 #endif /* !USG && TIOCGETC */
 #ifdef UCB_NTTY
   struct ltchars ltc;

   if (ldisc == NTTYDISC)
     {
       ioctl (FILEDES, TIOCGLTC, &ltc);
       ltc.t_suspc = CHK (ltc.t_suspc, CTRL ('Z'));
       ltc.t_dsuspc = CHK (ltc.t_dsuspc, CTRL ('Y'));
       ltc.t_rprntc = CHK (ltc.t_rprntc, CTRL ('R'));
       ltc.t_flushc = CHK (ltc.t_flushc, CTRL ('O'));
       ltc.t_werasc = CHK (ltc.t_werasc, CTRL ('W'));
       ltc.t_lnextc = CHK (ltc.t_lnextc, CTRL ('V'));
       ioctl (FILEDES, TIOCSLTC, &ltc);
     }
 #endif /* UCB_NTTY */
 #ifndef USG
 #ifdef TIOCGETC
   ioctl (FILEDES, TIOCGETC, &tbuf);
   tbuf.t_intrc = CHK (tbuf.t_intrc, CTRL ('?'));
   tbuf.t_quitc = CHK (tbuf.t_quitc, CTRL ('\\'));
   tbuf.t_startc = CHK (tbuf.t_startc, CTRL ('Q'));
   tbuf.t_stopc = CHK (tbuf.t_stopc, CTRL ('S'));
   tbuf.t_eofc = CHK (tbuf.t_eofc, CTRL ('D'));
   /* brkc is left alone */
   ioctl (FILEDES, TIOCSETC, &tbuf);
 #endif /* TIOCGETC */
   mode.sg_flags &= ~(RAW
 #ifdef CBREAK
 		     | CBREAK
 #endif /* CBREAK */
 		     | VTDELAY | ALLDELAY);
   mode.sg_flags |= XTABS | ECHO | CRMOD | ANYP;
 #else /*USG */
   ioctl (FILEDES, TCGETA, &mode);
   mode.c_cc[VINTR] = CHK (mode.c_cc[VINTR], CTRL ('?'));
   mode.c_cc[VQUIT] = CHK (mode.c_cc[VQUIT], CTRL ('\\'));
   mode.c_cc[VEOF] = CHK (mode.c_cc[VEOF], CTRL ('D'));

   mode.c_iflag &= ~(IGNBRK | PARMRK | INPCK | INLCR | IGNCR | IUCLC | IXOFF);
   mode.c_iflag |= (BRKINT | ISTRIP | ICRNL | IXON);
   mode.c_oflag &= ~(OLCUC | OCRNL | ONOCR | ONLRET | OFILL | OFDEL |
 		    NLDLY | CRDLY | TABDLY | BSDLY | VTDLY | FFDLY);
   mode.c_oflag |= (OPOST | ONLCR);
   mode.c_cflag &= ~(CSIZE | PARODD | CLOCAL);
 #ifndef hp9000s800
   mode.c_cflag |= (CS8 | CREAD);
 #else /*hp9000s800 */
   mode.c_cflag |= (CS8 | CSTOPB | CREAD);
 #endif /* hp9000s800 */
   mode.c_lflag &= ~(XCASE | ECHONL | NOFLSH);
   mode.c_lflag |= (ISIG | ICANON | ECHO | ECHOK);
   ioctl (FILEDES, TCSETAW, &mode);
 #endif /* USG */

   return;
 }				/* _tuiReset */
 #endif

 void
 tui_show_source (const char *file, int line)
 {
   /* make sure that the source window is displayed */
   tuiAddWinToLayout (SRC_WIN);

   tuiUpdateSourceWindowsWithLine (current_source_symtab, line);
   tuiUpdateLocatorFilename (file);
 }

 void
 tui_show_assembly (CORE_ADDR addr)
 {
   tuiAddWinToLayout (DISASSEM_WIN);
   tuiUpdateSourceWindowsWithAddr (addr);
 }

 int
 tui_is_window_visible (TuiWinType type)
 {
   if (tui_version == 0)
     return 0;

   if (winList[type] == 0)
     return 0;

   return winList[type]->generic.isVisible;
 }

 int
 tui_get_command_dimension (int *width, int *height)
 {
   if (!tui_version || !m_winPtrNotNull (cmdWin))
     {
       return 0;
     }

   *width = cmdWin->generic.width;
   *height = cmdWin->generic.height;
   return 1;
 }
	/* General functions for the WDB TUI.

	Copyright 1998, 1999, 2000, 2001, 2002 Free Software Foundation,
	Inc.

	Contributed by Hewlett-Packard Company.

	This file is part of GDB.

	This program is free software; you can redistribute it and/or modify
	it under the terms of the GNU General Public License as published by
	the Free Software Foundation; either version 2 of the License, or
	(at your option) any later version.

	This program is distributed in the hope that it will be useful,
	but WITHOUT ANY WARRANTY; without even the implied warranty of
	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
	GNU General Public License for more details.

	You should have received a copy of the GNU General Public License
	along with this program; if not, write to the Free Software
	Foundation, Inc., 59 Temple Place - Suite 330,
	Boston, MA 02111-1307, USA. */

	/* FIXME: cagney/2002-02-28: The GDB coding standard indicates that
	"defs.h" should be included first. Unfortunatly some systems
	(currently Debian GNU/Linux) include the <stdbool.h> via <curses.h>
	and they clash with "bfd.h"'s definiton of true/false. The correct
	fix is to remove true/false from "bfd.h", however, until that
	happens, hack around it by including "config.h" and <curses.h>
	first. */

	#include "config.h"
	#ifdef HAVE_NCURSES_H
	#include <ncurses.h>
	#else
	#ifdef HAVE_CURSES_H
	#include <curses.h>
	#endif
	#endif

	#include <stdio.h>
	#include <stdlib.h>
	#include <ctype.h>
	#include <malloc.h>
	#ifdef HAVE_TERM_H
	#include <term.h>
	#endif
	#include <signal.h>
	#include <fcntl.h>
	#include <termio.h>
	#include <setjmp.h>
	#include "defs.h"
	#include "gdbcmd.h"
	#include "tui.h"
	#include "tuiData.h"
	#include "tuiLayout.h"
	#include "tuiIO.h"
	#include "tuiRegs.h"
	#include "tuiStack.h"
	#include "tuiWin.h"
	#include "tuiSourceWin.h"
	#include "readline/readline.h"
	#include "target.h"
	#include "frame.h"
	#include "breakpoint.h"
	#include "inferior.h"

	/* Tells whether the TUI is active or not. */
	int tui_active = 0;
	static int tui_finish_init = 1;

	/* Switch the output mode between TUI/standard gdb. */
	static int
	tui_switch_mode (void)
	{
	if (tui_active)
	{
	tui_disable ();
	rl_prep_terminal (0);

	printf_filtered ("Left the TUI mode\n");
	}
	else
	{
	rl_deprep_terminal ();
	tui_enable ();
	printf_filtered ("Entered the TUI mode\n");
	}

	/* Clear the readline in case switching occurred in middle of something. */
	if (rl_end)
	rl_kill_text (0, rl_end);

	/* Since we left the curses mode, the terminal mode is restored to
	some previous state. That state may not be suitable for readline
	to work correctly (it may be restored in line mode). We force an
	exit of the current readline so that readline is re-entered and it
	will be able to setup the terminal for its needs. By re-entering
	in readline, we also redisplay its prompt in the non-curses mode. */
	rl_newline (1, '\n');

	/* Make sure the \n we are returning does not repeat the last command. */
	dont_repeat ();
	return 0;
	}

	/* Change the TUI layout to show a next layout.
	This function is bound to CTRL-X 2. It is intended to provide
	a functionality close to the Emacs split-window command. We always
	show two windows (src+asm), (src+regs) or (asm+regs). */
	static int
	tui_change_windows (void)
	{
	if (!tui_active)
	tui_switch_mode ();

	if (tui_active)
	{
	TuiLayoutType new_layout;
	TuiRegisterDisplayType regs_type = TUI_UNDEFINED_REGS;

	new_layout = currentLayout ();

	/* Select a new layout to have a rolling layout behavior
	with always two windows (except when undefined). */
	switch (new_layout)
	{
	case SRC_COMMAND:
	new_layout = SRC_DISASSEM_COMMAND;
	break;

	case DISASSEM_COMMAND:
	new_layout = SRC_DISASSEM_COMMAND;
	break;

	case SRC_DATA_COMMAND:
	new_layout = SRC_DISASSEM_COMMAND;
	break;

	case SRC_DISASSEM_COMMAND:
	new_layout = DISASSEM_DATA_COMMAND;
	break;

	case DISASSEM_DATA_COMMAND:
	new_layout = SRC_DATA_COMMAND;
	break;

	default:
	new_layout = SRC_COMMAND;
	break;
	}
	tuiSetLayout (new_layout, regs_type);
	}
	return 0;
	}


	/* Delete the second TUI window to only show one. */
	static int
	tui_delete_other_windows (void)
	{
	if (!tui_active)
	tui_switch_mode ();

	if (tui_active)
	{
	TuiLayoutType new_layout;
	TuiRegisterDisplayType regs_type = TUI_UNDEFINED_REGS;

	new_layout = currentLayout ();

	/* Kill one window. */
	switch (new_layout)
	{
	case SRC_COMMAND:
	case SRC_DATA_COMMAND:
	case SRC_DISASSEM_COMMAND:
	default:
	new_layout = SRC_COMMAND;
	break;

	case DISASSEM_COMMAND:
	case DISASSEM_DATA_COMMAND:
	new_layout = DISASSEM_COMMAND;
	break;
	}
	tuiSetLayout (new_layout, regs_type);
	}
	return 0;
	}

	/* Initialize readline and configure the keymap for the switching
	key shortcut. */
	void
	tui_initialize_readline ()
	{
	rl_initialize ();

	rl_add_defun ("tui-switch-mode", tui_switch_mode, -1);
	rl_bind_key_in_map ('a', tui_switch_mode, emacs_ctlx_keymap);
	rl_bind_key_in_map ('A', tui_switch_mode, emacs_ctlx_keymap);
	rl_bind_key_in_map (CTRL ('A'), tui_switch_mode, emacs_ctlx_keymap);
	rl_bind_key_in_map ('1', tui_delete_other_windows, emacs_ctlx_keymap);
	rl_bind_key_in_map ('2', tui_change_windows, emacs_ctlx_keymap);
	}

	/* Enter in the tui mode (curses).
	When in normal mode, it installs the tui hooks in gdb, redirects
	the gdb output, configures the readline to work in tui mode.
	When in curses mode, it does nothing. */
	void
	tui_enable (void)
	{
	if (tui_active)
	return;

	/* To avoid to initialize curses when gdb starts, there is a defered
	curses initialization. This initialization is made only once
	and the first time the curses mode is entered. */
	if (tui_finish_init)
	{
	WINDOW *w;

	w = initscr ();

	cbreak ();
	noecho ();
	/timeout (1);/
	nodelay(w, FALSE);
	nl();
	keypad (w, TRUE);
	rl_initialize ();
	setTermHeightTo (LINES);
	setTermWidthTo (COLS);
	def_prog_mode ();

	tuiSetLocatorContent (0);
	showLayout (SRC_COMMAND);
	tuiSetWinFocusTo (srcWin);
	keypad (cmdWin->generic.handle, TRUE);
	wrefresh (cmdWin->generic.handle);
	tui_finish_init = 0;
	}
	else
	{
	/* Save the current gdb setting of the terminal.
	Curses will restore this state when endwin() is called. */
	def_shell_mode ();
	clearok (stdscr, TRUE);
	}

	/* Install the TUI specific hooks. */
	tui_install_hooks ();

	tui_update_variables ();

	tui_setup_io (1);

	tui_version = 1;
	tui_active = 1;
	refresh ();
	}

	/* Leave the tui mode.
	Remove the tui hooks and configure the gdb output and readline
	back to their original state. The curses mode is left so that
	the terminal setting is restored to the point when we entered. */
	void
	tui_disable (void)
	{
	if (!tui_active)
	return;

	/* Remove TUI hooks. */
	tui_remove_hooks ();

	/* Leave curses and restore previous gdb terminal setting. */
	endwin ();

	/* gdb terminal has changed, update gdb internal copy of it
	so that terminal management with the inferior works. */
	tui_setup_io (0);

	tui_version = 0;
	tui_active = 0;
	}

	/* Wrapper on top of free() to ensure that input address
	is greater than 0x0. */
	void
	tuiFree (char *ptr)
	{
	if (ptr != (char *) NULL)
	{
	xfree (ptr);
	}
	}

	/* Determine what the low address will be to display in the TUI's
	disassembly window. This may or may not be the same as the
	low address input. */
	CORE_ADDR
	tuiGetLowDisassemblyAddress (CORE_ADDR low, CORE_ADDR pc)
	{
	int line;
	CORE_ADDR newLow;

	/* Determine where to start the disassembly so that the pc is about in the
	middle of the viewport. */
	for (line = 0, newLow = pc;
	(newLow > low &&
	line < (tuiDefaultWinViewportHeight (DISASSEM_WIN,
	DISASSEM_COMMAND) / 2));)
	{
	bfd_byte buffer[4];

	newLow -= sizeof (bfd_getb32 (buffer));
	line++;
	}

	return newLow;
	}

	void
	strcat_to_buf (char buf, int buflen, char itemToAdd)
	{
	if (itemToAdd != (char ) NULL && buf != (char ) NULL)
	{
	if ((strlen (buf) + strlen (itemToAdd)) <= buflen)
	strcat (buf, itemToAdd);
	else
	strncat (buf, itemToAdd, (buflen - strlen (buf)));
	}
	}

	#if 0
	/* Solaris <sys/termios.h> defines CTRL. */
	#ifndef CTRL
	#define CTRL(x) (x & ~0140)
	#endif

	#define FILEDES 2
	#define CHK(val, dft) (val<=0 ? dft : val)

	static void
	_tuiReset (void)
	{
	struct termio mode;

	/*
	** reset the teletype mode bits to a sensible state.
	** Copied tset.c
	*/
	#if ! defined (USG) && defined (TIOCGETC)
	struct tchars tbuf;
	#endif /* !USG && TIOCGETC */
	#ifdef UCB_NTTY
	struct ltchars ltc;

	if (ldisc == NTTYDISC)
	{
	ioctl (FILEDES, TIOCGLTC, &ltc);
	ltc.t_suspc = CHK (ltc.t_suspc, CTRL ('Z'));
	ltc.t_dsuspc = CHK (ltc.t_dsuspc, CTRL ('Y'));
	ltc.t_rprntc = CHK (ltc.t_rprntc, CTRL ('R'));
	ltc.t_flushc = CHK (ltc.t_flushc, CTRL ('O'));
	ltc.t_werasc = CHK (ltc.t_werasc, CTRL ('W'));
	ltc.t_lnextc = CHK (ltc.t_lnextc, CTRL ('V'));
	ioctl (FILEDES, TIOCSLTC, &ltc);
	}
	#endif /* UCB_NTTY */
	#ifndef USG
	#ifdef TIOCGETC
	ioctl (FILEDES, TIOCGETC, &tbuf);
	tbuf.t_intrc = CHK (tbuf.t_intrc, CTRL ('?'));
	tbuf.t_quitc = CHK (tbuf.t_quitc, CTRL ('\\'));
	tbuf.t_startc = CHK (tbuf.t_startc, CTRL ('Q'));
	tbuf.t_stopc = CHK (tbuf.t_stopc, CTRL ('S'));
	tbuf.t_eofc = CHK (tbuf.t_eofc, CTRL ('D'));
	/* brkc is left alone */
	ioctl (FILEDES, TIOCSETC, &tbuf);
	#endif /* TIOCGETC */
	mode.sg_flags &= ~(RAW
	#ifdef CBREAK
	\| CBREAK
	#endif /* CBREAK */
	\| VTDELAY \| ALLDELAY);
	mode.sg_flags \|= XTABS \| ECHO \| CRMOD \| ANYP;
	#else /USG /
	ioctl (FILEDES, TCGETA, &mode);
	mode.c_cc[VINTR] = CHK (mode.c_cc[VINTR], CTRL ('?'));
	mode.c_cc[VQUIT] = CHK (mode.c_cc[VQUIT], CTRL ('\\'));
	mode.c_cc[VEOF] = CHK (mode.c_cc[VEOF], CTRL ('D'));

	mode.c_iflag &= ~(IGNBRK \| PARMRK \| INPCK \| INLCR \| IGNCR \| IUCLC \| IXOFF);
	mode.c_iflag \|= (BRKINT \| ISTRIP \| ICRNL \| IXON);
	mode.c_oflag &= ~(OLCUC \| OCRNL \| ONOCR \| ONLRET \| OFILL \| OFDEL \|
	NLDLY \| CRDLY \| TABDLY \| BSDLY \| VTDLY \| FFDLY);
	mode.c_oflag \|= (OPOST \| ONLCR);
	mode.c_cflag &= ~(CSIZE \| PARODD \| CLOCAL);
	#ifndef hp9000s800
	mode.c_cflag \|= (CS8 \| CREAD);
	#else /hp9000s800 /
	mode.c_cflag \|= (CS8 \| CSTOPB \| CREAD);
	#endif /* hp9000s800 */
	mode.c_lflag &= ~(XCASE \| ECHONL \| NOFLSH);
	mode.c_lflag \|= (ISIG \| ICANON \| ECHO \| ECHOK);
	ioctl (FILEDES, TCSETAW, &mode);
	#endif /* USG */

	return;
	} /* _tuiReset */
	#endif

	void
	tui_show_source (const char *file, int line)
	{
	/* make sure that the source window is displayed */
	tuiAddWinToLayout (SRC_WIN);

	tuiUpdateSourceWindowsWithLine (current_source_symtab, line);
	tuiUpdateLocatorFilename (file);
	}

	void
	tui_show_assembly (CORE_ADDR addr)
	{
	tuiAddWinToLayout (DISASSEM_WIN);
	tuiUpdateSourceWindowsWithAddr (addr);
	}

	int
	tui_is_window_visible (TuiWinType type)
	{
	if (tui_version == 0)
	return 0;

	if (winList[type] == 0)
	return 0;

	return winList[type]->generic.isVisible;
	}

	int
	tui_get_command_dimension (int width, int height)
	{
	if (!tui_version \|\| !m_winPtrNotNull (cmdWin))
	{
	return 0;
	}

	*width = cmdWin->generic.width;
	*height = cmdWin->generic.height;
	return 1;
	}