* tuiWin.c, tuiWin.h, tui.c, tui.h, tuiCommand.c: Add FSF copyright.
tuiCommand.h, tuiIO.c, tuiIO.h, tuiData.h, tuiData.c: Likewise.
tuiDataWin.c, tuiDataWin.h, tuiDisassem.c, tuiDisassem.h: Likewise.
tuiGeneralWin.c, tuiGeneralWin.h, tuiLayout.c, tuiLayout.h: Likewise.
tuiRegs.c, tuiRegs.h, tuiSource.c, tuiSource.h: Likewise.
tuiSouceWin.c, tuiSourceWin.h, tuiStack.c, tuiStack.h: Likewise.
2001-07-14 21:01:25 +02:00
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|
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/* TUI support I/O functions.
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Copyright 1998, 1999, 2000, 2001 Free Software Foundation, Inc.
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Contributed by Hewlett-Packard Company.
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This file is part of GDB.
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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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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 59 Temple Place - Suite 330,
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Boston, MA 02111-1307, USA. */
|
1999-04-16 03:35:26 +02:00
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2002-02-08 16:54:32 +01:00
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/* If we need <curses.h>, we must include it before we get "bfd.h". */
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#include "config.h"
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#ifdef HAVE_NCURSES_H
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#include <ncurses.h>
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#else
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#ifdef HAVE_CURSES_H
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#include <curses.h>
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#endif
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#endif
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1999-04-16 03:35:26 +02:00
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#include <stdio.h>
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#include "defs.h"
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#include "terminal.h"
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2001-07-21 21:56:54 +02:00
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#include "target.h"
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#include "event-loop.h"
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#include "command.h"
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#include "top.h"
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#include "readline/readline.h"
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1999-04-16 03:35:26 +02:00
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#include "tui.h"
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#include "tuiData.h"
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#include "tuiIO.h"
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#include "tuiCommand.h"
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#include "tuiWin.h"
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2001-07-21 21:56:54 +02:00
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#include "tuiGeneralWin.h"
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#include "tui-file.h"
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#include "ui-out.h"
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#include "cli-out.h"
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#include <fcntl.h>
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2001-07-22 00:35:40 +02:00
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#include <signal.h>
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2001-07-21 21:56:54 +02:00
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/* This file controls the IO interactions between gdb and curses.
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When the TUI is enabled, gdb has two modes a curses and a standard
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mode.
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In curses mode, the gdb outputs are made in a curses command window.
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For this, the gdb_stdout and gdb_stderr are redirected to the specific
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ui_file implemented by TUI. The output is handled by tui_puts().
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The input is also controlled by curses with tui_getc(). The readline
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library uses this function to get its input. Several readline hooks
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are installed to redirect readline output to the TUI (see also the
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note below).
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In normal mode, the gdb outputs are restored to their origin, that
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is as if TUI is not used. Readline also uses its original getc()
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function with stdin.
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Note: the current readline is not clean in its management of the output.
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Even if we install a redisplay handler, it sometimes writes on a stdout
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file. It is important to redirect every output produced by readline,
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otherwise the curses window will be garbled. This is implemented with
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a pipe that TUI reads and readline writes to. A gdb input handler
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is created so that reading the pipe is handled automatically.
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This will probably not work on non-Unix platforms. The best fix is
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to make readline clean enougth so that is never write on stdout. */
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/* TUI output files. */
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static struct ui_file *tui_stdout;
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static struct ui_file *tui_stderr;
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static struct ui_out *tui_out;
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/* GDB output files in non-curses mode. */
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static struct ui_file *tui_old_stdout;
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static struct ui_file *tui_old_stderr;
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static struct ui_out *tui_old_uiout;
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/* Readline previous hooks. */
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static Function *tui_old_rl_getc_function;
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static VFunction *tui_old_rl_redisplay_function;
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static VFunction *tui_old_rl_prep_terminal;
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static VFunction *tui_old_rl_deprep_terminal;
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static int tui_old_readline_echoing_p;
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/* Readline output stream.
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Should be removed when readline is clean. */
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static FILE *tui_rl_outstream;
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static FILE *tui_old_rl_outstream;
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static int tui_readline_pipe[2];
|
1999-04-16 03:35:26 +02:00
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|
2000-05-28 03:12:42 +02:00
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static unsigned int _tuiHandleResizeDuringIO (unsigned int);
|
1999-04-16 03:35:26 +02:00
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2001-07-21 21:56:54 +02:00
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/* Print the string in the curses command window. */
|
1999-04-16 03:35:26 +02:00
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void
|
2001-07-21 21:56:54 +02:00
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tui_puts (const char *string)
|
1999-04-16 03:35:26 +02:00
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{
|
2001-07-21 21:56:54 +02:00
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static int tui_skip_line = -1;
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char c;
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WINDOW *w;
|
1999-04-16 03:35:26 +02:00
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|
2001-07-21 21:56:54 +02:00
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w = cmdWin->generic.handle;
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while ((c = *string++) != 0)
|
1999-04-16 03:35:26 +02:00
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{
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2001-07-21 21:56:54 +02:00
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/* Catch annotation and discard them. We need two \032 and
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discard until a \n is seen. */
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if (c == '\032')
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{
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tui_skip_line++;
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}
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else if (tui_skip_line != 1)
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{
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|
tui_skip_line = -1;
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waddch (w, c);
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}
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else if (c == '\n')
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tui_skip_line = -1;
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}
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getyx (w, cmdWin->detail.commandInfo.curLine,
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cmdWin->detail.commandInfo.curch);
|
2001-07-23 23:16:20 +02:00
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cmdWin->detail.commandInfo.start_line = cmdWin->detail.commandInfo.curLine;
|
2001-07-21 21:56:54 +02:00
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/* We could defer the following. */
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|
wrefresh (w);
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|
fflush (stdout);
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|
}
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|
/* Readline callback.
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|
Redisplay the command line with its prompt after readline has
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|
changed the edited text. */
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|
|
static void
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|
tui_redisplay_readline (void)
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|
{
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int prev_col;
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int height;
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int col, line;
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int c_pos;
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int c_line;
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int in;
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WINDOW *w;
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char *prompt;
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int start_line;
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prompt = get_prompt ();
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c_pos = -1;
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c_line = -1;
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w = cmdWin->generic.handle;
|
2001-07-23 23:16:20 +02:00
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|
start_line = cmdWin->detail.commandInfo.start_line;
|
2001-07-21 21:56:54 +02:00
|
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|
wmove (w, start_line, 0);
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|
prev_col = 0;
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|
height = 1;
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|
for (in = 0; prompt && prompt[in]; in++)
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{
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|
waddch (w, prompt[in]);
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getyx (w, line, col);
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|
if (col < prev_col)
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height++;
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prev_col = col;
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|
}
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|
for (in = 0; in < rl_end; in++)
|
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|
|
{
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|
|
|
unsigned char c;
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|
c = (unsigned char) rl_line_buffer[in];
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|
|
if (in == rl_point)
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|
{
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|
getyx (w, c_line, c_pos);
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|
}
|
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|
|
if (CTRL_CHAR (c) || c == RUBOUT)
|
|
|
|
{
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|
|
waddch (w, '^');
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|
|
waddch (w, CTRL_CHAR (c) ? UNCTRL (c) : '?');
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|
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|
}
|
1999-04-16 03:35:26 +02:00
|
|
|
else
|
|
|
|
{
|
2001-07-21 21:56:54 +02:00
|
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|
waddch (w, c);
|
1999-04-16 03:35:26 +02:00
|
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|
}
|
2001-07-21 21:56:54 +02:00
|
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|
if (c == '\n')
|
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|
{
|
2001-07-23 23:16:20 +02:00
|
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|
getyx (w, cmdWin->detail.commandInfo.start_line,
|
2001-07-21 21:56:54 +02:00
|
|
|
cmdWin->detail.commandInfo.curch);
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|
|
}
|
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|
getyx (w, line, col);
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|
|
if (col < prev_col)
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|
height++;
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prev_col = col;
|
1999-04-16 03:35:26 +02:00
|
|
|
}
|
2001-07-21 21:56:54 +02:00
|
|
|
wclrtobot (w);
|
2001-07-23 23:16:20 +02:00
|
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|
getyx (w, cmdWin->detail.commandInfo.start_line,
|
2001-07-21 21:56:54 +02:00
|
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|
cmdWin->detail.commandInfo.curch);
|
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|
|
if (c_line >= 0)
|
2001-07-23 23:16:20 +02:00
|
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|
{
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|
wmove (w, c_line, c_pos);
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|
cmdWin->detail.commandInfo.curLine = c_line;
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|
cmdWin->detail.commandInfo.curch = c_pos;
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|
|
}
|
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|
|
cmdWin->detail.commandInfo.start_line -= height - 1;
|
2001-07-21 21:56:54 +02:00
|
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|
|
|
|
|
wrefresh (w);
|
|
|
|
fflush(stdout);
|
|
|
|
}
|
|
|
|
|
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|
|
/* Readline callback to prepare the terminal. It is called once
|
|
|
|
each time we enter readline. There is nothing to do in curses mode. */
|
|
|
|
static void
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|
|
tui_prep_terminal (void)
|
1999-04-16 03:35:26 +02:00
|
|
|
{
|
2001-07-21 21:56:54 +02:00
|
|
|
}
|
1999-04-16 03:35:26 +02:00
|
|
|
|
2001-07-21 21:56:54 +02:00
|
|
|
/* Readline callback to restore the terminal. It is called once
|
|
|
|
each time we leave readline. There is nothing to do in curses mode. */
|
|
|
|
static void
|
|
|
|
tui_deprep_terminal (void)
|
|
|
|
{
|
|
|
|
}
|
1999-04-16 03:35:26 +02:00
|
|
|
|
2001-07-21 21:56:54 +02:00
|
|
|
/* Read readline output pipe and feed the command window with it.
|
|
|
|
Should be removed when readline is clean. */
|
|
|
|
static void
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|
|
tui_readline_output (int code, gdb_client_data data)
|
|
|
|
{
|
|
|
|
int size;
|
|
|
|
char buf[256];
|
1999-04-16 03:35:26 +02:00
|
|
|
|
2001-07-21 21:56:54 +02:00
|
|
|
size = read (tui_readline_pipe[0], buf, sizeof (buf) - 1);
|
|
|
|
if (size > 0 && tui_active)
|
1999-04-16 03:35:26 +02:00
|
|
|
{
|
2001-07-21 21:56:54 +02:00
|
|
|
buf[size] = 0;
|
|
|
|
tui_puts (buf);
|
1999-04-16 03:35:26 +02:00
|
|
|
}
|
2001-07-21 21:56:54 +02:00
|
|
|
}
|
|
|
|
|
|
|
|
/* Setup the IO for curses or non-curses mode.
|
|
|
|
- In non-curses mode, readline and gdb use the standard input and
|
|
|
|
standard output/error directly.
|
|
|
|
- In curses mode, the standard output/error is controlled by TUI
|
|
|
|
with the tui_stdout and tui_stderr. The output is redirected in
|
|
|
|
the curses command window. Several readline callbacks are installed
|
|
|
|
so that readline asks for its input to the curses command window
|
|
|
|
with wgetch(). */
|
|
|
|
void
|
|
|
|
tui_setup_io (int mode)
|
|
|
|
{
|
|
|
|
extern int readline_echoing_p;
|
|
|
|
|
|
|
|
if (mode)
|
1999-04-16 03:35:26 +02:00
|
|
|
{
|
2001-07-21 21:56:54 +02:00
|
|
|
/* Redirect readline to TUI. */
|
|
|
|
tui_old_rl_redisplay_function = rl_redisplay_function;
|
|
|
|
tui_old_rl_deprep_terminal = rl_deprep_term_function;
|
|
|
|
tui_old_rl_prep_terminal = rl_prep_term_function;
|
|
|
|
tui_old_rl_getc_function = rl_getc_function;
|
|
|
|
tui_old_rl_outstream = rl_outstream;
|
|
|
|
tui_old_readline_echoing_p = readline_echoing_p;
|
|
|
|
rl_redisplay_function = tui_redisplay_readline;
|
|
|
|
rl_deprep_term_function = tui_deprep_terminal;
|
|
|
|
rl_prep_term_function = tui_prep_terminal;
|
|
|
|
rl_getc_function = tui_getc;
|
|
|
|
readline_echoing_p = 0;
|
|
|
|
rl_outstream = tui_rl_outstream;
|
|
|
|
rl_prompt = 0;
|
|
|
|
|
|
|
|
/* Keep track of previous gdb output. */
|
|
|
|
tui_old_stdout = gdb_stdout;
|
|
|
|
tui_old_stderr = gdb_stderr;
|
|
|
|
tui_old_uiout = uiout;
|
|
|
|
|
|
|
|
/* Reconfigure gdb output. */
|
|
|
|
gdb_stdout = tui_stdout;
|
|
|
|
gdb_stderr = tui_stderr;
|
|
|
|
gdb_stdlog = gdb_stdout; /* for moment */
|
|
|
|
gdb_stdtarg = gdb_stderr; /* for moment */
|
|
|
|
uiout = tui_out;
|
2001-07-22 00:35:40 +02:00
|
|
|
|
|
|
|
/* Save tty for SIGCONT. */
|
|
|
|
savetty ();
|
1999-04-16 03:35:26 +02:00
|
|
|
}
|
2001-07-21 21:56:54 +02:00
|
|
|
else
|
1999-04-16 03:35:26 +02:00
|
|
|
{
|
2001-07-21 21:56:54 +02:00
|
|
|
/* Restore gdb output. */
|
|
|
|
gdb_stdout = tui_old_stdout;
|
|
|
|
gdb_stderr = tui_old_stderr;
|
|
|
|
gdb_stdlog = gdb_stdout; /* for moment */
|
|
|
|
gdb_stdtarg = gdb_stderr; /* for moment */
|
|
|
|
uiout = tui_old_uiout;
|
|
|
|
|
|
|
|
/* Restore readline. */
|
|
|
|
rl_redisplay_function = tui_old_rl_redisplay_function;
|
|
|
|
rl_deprep_term_function = tui_old_rl_deprep_terminal;
|
|
|
|
rl_prep_term_function = tui_old_rl_prep_terminal;
|
|
|
|
rl_getc_function = tui_old_rl_getc_function;
|
|
|
|
rl_outstream = tui_old_rl_outstream;
|
|
|
|
readline_echoing_p = tui_old_readline_echoing_p;
|
2001-07-22 00:35:40 +02:00
|
|
|
|
|
|
|
/* Save tty for SIGCONT. */
|
|
|
|
savetty ();
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
#ifdef SIGCONT
|
|
|
|
/* Catch SIGCONT to restore the terminal and refresh the screen. */
|
|
|
|
static void
|
|
|
|
tui_cont_sig (int sig)
|
|
|
|
{
|
|
|
|
if (tui_active)
|
|
|
|
{
|
|
|
|
/* Restore the terminal setting because another process (shell)
|
|
|
|
might have changed it. */
|
|
|
|
resetty ();
|
|
|
|
|
|
|
|
/* Force a refresh of the screen. */
|
|
|
|
tuiRefreshAll ();
|
2001-07-23 23:16:20 +02:00
|
|
|
|
|
|
|
/* Update cursor position on the screen. */
|
|
|
|
wmove (cmdWin->generic.handle,
|
|
|
|
cmdWin->detail.commandInfo.start_line,
|
|
|
|
cmdWin->detail.commandInfo.curch);
|
|
|
|
wrefresh (cmdWin->generic.handle);
|
1999-04-16 03:35:26 +02:00
|
|
|
}
|
2001-07-22 00:35:40 +02:00
|
|
|
signal (sig, tui_cont_sig);
|
2001-07-21 21:56:54 +02:00
|
|
|
}
|
2001-07-22 00:35:40 +02:00
|
|
|
#endif
|
1999-04-16 03:35:26 +02:00
|
|
|
|
2001-07-21 21:56:54 +02:00
|
|
|
/* Initialize the IO for gdb in curses mode. */
|
|
|
|
void
|
|
|
|
tui_initialize_io ()
|
|
|
|
{
|
2001-07-22 00:35:40 +02:00
|
|
|
#ifdef SIGCONT
|
|
|
|
signal (SIGCONT, tui_cont_sig);
|
|
|
|
#endif
|
|
|
|
|
2001-07-21 21:56:54 +02:00
|
|
|
/* Create tui output streams. */
|
|
|
|
tui_stdout = tui_fileopen (stdout);
|
|
|
|
tui_stderr = tui_fileopen (stderr);
|
|
|
|
tui_out = tui_out_new (tui_stdout);
|
|
|
|
|
|
|
|
/* Create the default UI. It is not created because we installed
|
|
|
|
a init_ui_hook. */
|
|
|
|
uiout = cli_out_new (gdb_stdout);
|
|
|
|
|
|
|
|
/* Temporary solution for readline writing to stdout:
|
|
|
|
redirect readline output in a pipe, read that pipe and
|
|
|
|
output the content in the curses command window. */
|
|
|
|
if (pipe (tui_readline_pipe) != 0)
|
1999-04-16 03:35:26 +02:00
|
|
|
{
|
2001-07-21 21:56:54 +02:00
|
|
|
fprintf_unfiltered (gdb_stderr, "Cannot create pipe for readline");
|
|
|
|
exit (1);
|
1999-04-16 03:35:26 +02:00
|
|
|
}
|
2001-07-21 21:56:54 +02:00
|
|
|
tui_rl_outstream = fdopen (tui_readline_pipe[1], "w");
|
|
|
|
if (tui_rl_outstream == 0)
|
1999-04-16 03:35:26 +02:00
|
|
|
{
|
2001-07-21 21:56:54 +02:00
|
|
|
fprintf_unfiltered (gdb_stderr, "Cannot redirect readline output");
|
|
|
|
exit (1);
|
1999-04-16 03:35:26 +02:00
|
|
|
}
|
2001-07-21 21:56:54 +02:00
|
|
|
setlinebuf (tui_rl_outstream);
|
1999-04-16 03:35:26 +02:00
|
|
|
|
2001-07-21 21:56:54 +02:00
|
|
|
#ifdef O_NONBLOCK
|
|
|
|
(void) fcntl (tui_readline_pipe[0], F_SETFL, O_NONBLOCK);
|
1999-04-16 03:35:26 +02:00
|
|
|
#else
|
2001-07-21 21:56:54 +02:00
|
|
|
#ifdef O_NDELAY
|
|
|
|
(void) fcntl (tui_readline_pipe[0], F_SETFL, O_NDELAY);
|
1999-04-16 03:35:26 +02:00
|
|
|
#endif
|
2001-07-21 21:56:54 +02:00
|
|
|
#endif
|
|
|
|
|
|
|
|
add_file_handler (tui_readline_pipe[0], tui_readline_output, 0);
|
|
|
|
}
|
|
|
|
|
|
|
|
/* Get a character from the command window. This is called from the readline
|
|
|
|
package. */
|
|
|
|
int
|
|
|
|
tui_getc (FILE *fp)
|
|
|
|
{
|
|
|
|
int ch;
|
|
|
|
WINDOW *w;
|
|
|
|
|
|
|
|
w = cmdWin->generic.handle;
|
|
|
|
|
|
|
|
/* Flush readline output. */
|
|
|
|
tui_readline_output (GDB_READABLE, 0);
|
|
|
|
|
|
|
|
ch = wgetch (w);
|
1999-04-16 03:35:26 +02:00
|
|
|
ch = _tuiHandleResizeDuringIO (ch);
|
|
|
|
|
2001-07-21 21:56:54 +02:00
|
|
|
/* The \n must be echoed because it will not be printed by readline. */
|
|
|
|
if (ch == '\n')
|
|
|
|
{
|
|
|
|
/* When hitting return with an empty input, gdb executes the last
|
|
|
|
command. If we emit a newline, this fills up the command window
|
|
|
|
with empty lines with gdb prompt at beginning. Instead of that,
|
|
|
|
stay on the same line but provide a visual effect to show the
|
|
|
|
user we recognized the command. */
|
|
|
|
if (rl_end == 0)
|
|
|
|
{
|
|
|
|
wmove (w, cmdWin->detail.commandInfo.curLine, 0);
|
|
|
|
|
|
|
|
/* Clear the line. This will blink the gdb prompt since
|
|
|
|
it will be redrawn at the same line. */
|
|
|
|
wclrtoeol (w);
|
|
|
|
wrefresh (w);
|
|
|
|
napms (20);
|
|
|
|
}
|
|
|
|
else
|
|
|
|
{
|
|
|
|
wmove (w, cmdWin->detail.commandInfo.curLine,
|
|
|
|
cmdWin->detail.commandInfo.curch);
|
|
|
|
waddch (w, ch);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
1999-04-16 03:35:26 +02:00
|
|
|
if (m_isCommandChar (ch))
|
|
|
|
{ /* Handle prev/next/up/down here */
|
|
|
|
ch = tuiDispatchCtrlChar (ch);
|
|
|
|
}
|
2001-07-21 21:56:54 +02:00
|
|
|
|
1999-04-16 03:35:26 +02:00
|
|
|
if (ch == '\n' || ch == '\r' || ch == '\f')
|
|
|
|
cmdWin->detail.commandInfo.curch = 0;
|
2001-07-21 21:56:54 +02:00
|
|
|
#if 0
|
1999-04-16 03:35:26 +02:00
|
|
|
else
|
|
|
|
tuiIncrCommandCharCountBy (1);
|
2001-07-21 21:56:54 +02:00
|
|
|
#endif
|
|
|
|
if (ch == KEY_BACKSPACE)
|
|
|
|
return '\b';
|
|
|
|
|
1999-04-16 03:35:26 +02:00
|
|
|
return ch;
|
2001-07-21 21:56:54 +02:00
|
|
|
}
|
1999-04-16 03:35:26 +02:00
|
|
|
|
|
|
|
|
2001-07-21 21:56:54 +02:00
|
|
|
/* Cleanup when a resize has occured.
|
|
|
|
Returns the character that must be processed. */
|
1999-04-16 03:35:26 +02:00
|
|
|
static unsigned int
|
2001-07-14 21:31:09 +02:00
|
|
|
_tuiHandleResizeDuringIO (unsigned int originalCh)
|
1999-04-16 03:35:26 +02:00
|
|
|
{
|
|
|
|
if (tuiWinResized ())
|
|
|
|
{
|
2001-07-19 00:03:22 +02:00
|
|
|
tuiRefreshAll ();
|
1999-04-16 03:35:26 +02:00
|
|
|
dont_repeat ();
|
|
|
|
tuiSetWinResizedTo (FALSE);
|
|
|
|
return '\n';
|
|
|
|
}
|
|
|
|
else
|
|
|
|
return originalCh;
|
2001-07-21 21:56:54 +02:00
|
|
|
}
|