4d09c5b423
https://sourceware.org/ml/gdb-patches/2013-09/msg00179.html gdb/ChangeLog * cli/cli-interp.c (_initialize_cli_interp): Add a command_loop_proc to interp_procs. * event-top.c (cli_command_loop): Change signature to match interp_command_loop_ftype. * event-top.h (cli_command_loop): Same. * interps.c (interp_new): Require every interpreter to have a command_loop_proc. (current_interp_command_loop): Just call the command_loop_proc on the current interpreter. * tui/tui-interp.c (_initialize_tui_interp): Add a command_loop_proc to interp_procs.
173 lines
4.0 KiB
C
173 lines
4.0 KiB
C
/* TUI Interpreter definitions for GDB, the GNU debugger.
|
|
|
|
Copyright (C) 2003-2013 Free Software Foundation, Inc.
|
|
|
|
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 3 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, see <http://www.gnu.org/licenses/>. */
|
|
|
|
#include "defs.h"
|
|
#include "interps.h"
|
|
#include "top.h"
|
|
#include "event-top.h"
|
|
#include "event-loop.h"
|
|
#include "ui-out.h"
|
|
#include "cli-out.h"
|
|
#include "tui/tui-data.h"
|
|
#include "readline/readline.h"
|
|
#include "tui/tui-win.h"
|
|
#include "tui/tui.h"
|
|
#include "tui/tui-io.h"
|
|
#include "exceptions.h"
|
|
|
|
/* Set to 1 when the TUI mode must be activated when we first start
|
|
gdb. */
|
|
static int tui_start_enabled = 0;
|
|
|
|
/* Cleanup the tui before exiting. */
|
|
|
|
static void
|
|
tui_exit (void)
|
|
{
|
|
/* Disable the tui. Curses mode is left leaving the screen in a
|
|
clean state (see endwin()). */
|
|
tui_disable ();
|
|
}
|
|
|
|
/* True if TUI is the top-level interpreter. */
|
|
static int tui_is_toplevel = 0;
|
|
|
|
/* These implement the TUI interpreter. */
|
|
|
|
static void *
|
|
tui_init (struct interp *self, int top_level)
|
|
{
|
|
tui_is_toplevel = top_level;
|
|
|
|
/* Install exit handler to leave the screen in a good shape. */
|
|
atexit (tui_exit);
|
|
|
|
tui_initialize_static_data ();
|
|
|
|
tui_initialize_io ();
|
|
tui_initialize_win ();
|
|
if (ui_file_isatty (gdb_stdout))
|
|
tui_initialize_readline ();
|
|
|
|
return NULL;
|
|
}
|
|
|
|
/* True if enabling the TUI is allowed. Example, if the top level
|
|
interpreter is MI, enabling curses will certainly lose. */
|
|
|
|
int
|
|
tui_allowed_p (void)
|
|
{
|
|
/* Only if TUI is the top level interpreter. Also don't try to
|
|
setup curses (and print funny control characters) if we're not
|
|
outputting to a terminal. */
|
|
return tui_is_toplevel && ui_file_isatty (gdb_stdout);
|
|
}
|
|
|
|
static int
|
|
tui_resume (void *data)
|
|
{
|
|
struct ui_file *stream;
|
|
|
|
/* gdb_setup_readline will change gdb_stdout. If the TUI was
|
|
previously writing to gdb_stdout, then set it to the new
|
|
gdb_stdout afterwards. */
|
|
|
|
stream = cli_out_set_stream (tui_old_uiout, gdb_stdout);
|
|
if (stream != gdb_stdout)
|
|
{
|
|
cli_out_set_stream (tui_old_uiout, stream);
|
|
stream = NULL;
|
|
}
|
|
|
|
gdb_setup_readline ();
|
|
|
|
if (stream != NULL)
|
|
cli_out_set_stream (tui_old_uiout, gdb_stdout);
|
|
|
|
if (tui_start_enabled)
|
|
tui_enable ();
|
|
return 1;
|
|
}
|
|
|
|
static int
|
|
tui_suspend (void *data)
|
|
{
|
|
tui_start_enabled = tui_active;
|
|
tui_disable ();
|
|
return 1;
|
|
}
|
|
|
|
/* Display the prompt if we are silent. */
|
|
|
|
static int
|
|
tui_display_prompt_p (void *data)
|
|
{
|
|
if (interp_quiet_p (NULL))
|
|
return 0;
|
|
else
|
|
return 1;
|
|
}
|
|
|
|
static struct ui_out *
|
|
tui_ui_out (struct interp *self)
|
|
{
|
|
if (tui_active)
|
|
return tui_out;
|
|
else
|
|
return tui_old_uiout;
|
|
}
|
|
|
|
static struct gdb_exception
|
|
tui_exec (void *data, const char *command_str)
|
|
{
|
|
internal_error (__FILE__, __LINE__, _("tui_exec called"));
|
|
}
|
|
|
|
/* Provide a prototype to silence -Wmissing-prototypes. */
|
|
extern initialize_file_ftype _initialize_tui_interp;
|
|
|
|
void
|
|
_initialize_tui_interp (void)
|
|
{
|
|
static const struct interp_procs procs = {
|
|
tui_init,
|
|
tui_resume,
|
|
tui_suspend,
|
|
tui_exec,
|
|
tui_display_prompt_p,
|
|
tui_ui_out,
|
|
NULL,
|
|
cli_command_loop
|
|
};
|
|
struct interp *tui_interp;
|
|
|
|
/* Create a default uiout builder for the TUI. */
|
|
tui_interp = interp_new (INTERP_TUI, &procs);
|
|
interp_add (tui_interp);
|
|
if (interpreter_p && strcmp (interpreter_p, INTERP_TUI) == 0)
|
|
tui_start_enabled = 1;
|
|
|
|
if (interpreter_p && strcmp (interpreter_p, INTERP_CONSOLE) == 0)
|
|
{
|
|
xfree (interpreter_p);
|
|
interpreter_p = xstrdup (INTERP_TUI);
|
|
}
|
|
}
|