728 lines
17 KiB
C
728 lines
17 KiB
C
/* Generic serial interface routines
|
||
|
||
Copyright (C) 1992-2014 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 <ctype.h>
|
||
#include "serial.h"
|
||
#include <string.h>
|
||
#include "gdbcmd.h"
|
||
#include "cli/cli-utils.h"
|
||
|
||
extern void _initialize_serial (void);
|
||
|
||
/* Is serial being debugged? */
|
||
|
||
static unsigned int global_serial_debug_p;
|
||
|
||
typedef const struct serial_ops *serial_ops_p;
|
||
DEF_VEC_P (serial_ops_p);
|
||
|
||
/* Serial I/O handlers. */
|
||
|
||
VEC (serial_ops_p) *serial_ops_list = NULL;
|
||
|
||
/* Pointer to list of scb's. */
|
||
|
||
static struct serial *scb_base;
|
||
|
||
/* Non-NULL gives filename which contains a recording of the remote session,
|
||
suitable for playback by gdbserver. */
|
||
|
||
static char *serial_logfile = NULL;
|
||
static struct ui_file *serial_logfp = NULL;
|
||
|
||
static const struct serial_ops *serial_interface_lookup (const char *);
|
||
static void serial_logchar (struct ui_file *stream,
|
||
int ch_type, int ch, int timeout);
|
||
static const char logbase_hex[] = "hex";
|
||
static const char logbase_octal[] = "octal";
|
||
static const char logbase_ascii[] = "ascii";
|
||
static const char *const logbase_enums[] =
|
||
{logbase_hex, logbase_octal, logbase_ascii, NULL};
|
||
static const char *serial_logbase = logbase_ascii;
|
||
|
||
|
||
static int serial_current_type = 0;
|
||
|
||
/* Log char CH of type CHTYPE, with TIMEOUT. */
|
||
|
||
/* Define bogus char to represent a BREAK. Should be careful to choose a value
|
||
that can't be confused with a normal char, or an error code. */
|
||
#define SERIAL_BREAK 1235
|
||
|
||
static void
|
||
serial_logchar (struct ui_file *stream, int ch_type, int ch, int timeout)
|
||
{
|
||
if (ch_type != serial_current_type)
|
||
{
|
||
fprintf_unfiltered (stream, "\n%c ", ch_type);
|
||
serial_current_type = ch_type;
|
||
}
|
||
|
||
if (serial_logbase != logbase_ascii)
|
||
fputc_unfiltered (' ', stream);
|
||
|
||
switch (ch)
|
||
{
|
||
case SERIAL_TIMEOUT:
|
||
fprintf_unfiltered (stream, "<Timeout: %d seconds>", timeout);
|
||
return;
|
||
case SERIAL_ERROR:
|
||
fprintf_unfiltered (stream, "<Error: %s>", safe_strerror (errno));
|
||
return;
|
||
case SERIAL_EOF:
|
||
fputs_unfiltered ("<Eof>", stream);
|
||
return;
|
||
case SERIAL_BREAK:
|
||
fputs_unfiltered ("<Break>", stream);
|
||
return;
|
||
default:
|
||
if (serial_logbase == logbase_hex)
|
||
fprintf_unfiltered (stream, "%02x", ch & 0xff);
|
||
else if (serial_logbase == logbase_octal)
|
||
fprintf_unfiltered (stream, "%03o", ch & 0xff);
|
||
else
|
||
switch (ch)
|
||
{
|
||
case '\\':
|
||
fputs_unfiltered ("\\\\", stream);
|
||
break;
|
||
case '\b':
|
||
fputs_unfiltered ("\\b", stream);
|
||
break;
|
||
case '\f':
|
||
fputs_unfiltered ("\\f", stream);
|
||
break;
|
||
case '\n':
|
||
fputs_unfiltered ("\\n", stream);
|
||
break;
|
||
case '\r':
|
||
fputs_unfiltered ("\\r", stream);
|
||
break;
|
||
case '\t':
|
||
fputs_unfiltered ("\\t", stream);
|
||
break;
|
||
case '\v':
|
||
fputs_unfiltered ("\\v", stream);
|
||
break;
|
||
default:
|
||
fprintf_unfiltered (stream,
|
||
isprint (ch) ? "%c" : "\\x%02x", ch & 0xFF);
|
||
break;
|
||
}
|
||
}
|
||
}
|
||
|
||
void
|
||
serial_log_command (const char *cmd)
|
||
{
|
||
if (!serial_logfp)
|
||
return;
|
||
|
||
serial_current_type = 'c';
|
||
|
||
fputs_unfiltered ("\nc ", serial_logfp);
|
||
fputs_unfiltered (cmd, serial_logfp);
|
||
|
||
/* Make sure that the log file is as up-to-date as possible,
|
||
in case we are getting ready to dump core or something. */
|
||
gdb_flush (serial_logfp);
|
||
}
|
||
|
||
|
||
static const struct serial_ops *
|
||
serial_interface_lookup (const char *name)
|
||
{
|
||
const struct serial_ops *ops;
|
||
int i;
|
||
|
||
for (i = 0; VEC_iterate (serial_ops_p, serial_ops_list, i, ops); ++i)
|
||
if (strcmp (name, ops->name) == 0)
|
||
return ops;
|
||
|
||
return NULL;
|
||
}
|
||
|
||
void
|
||
serial_add_interface (const struct serial_ops *optable)
|
||
{
|
||
VEC_safe_push (serial_ops_p, serial_ops_list, optable);
|
||
}
|
||
|
||
/* Return the open serial device for FD, if found, or NULL if FD is
|
||
not already opened. */
|
||
|
||
struct serial *
|
||
serial_for_fd (int fd)
|
||
{
|
||
struct serial *scb;
|
||
|
||
for (scb = scb_base; scb; scb = scb->next)
|
||
if (scb->fd == fd)
|
||
return scb;
|
||
|
||
return NULL;
|
||
}
|
||
|
||
/* Open up a device or a network socket, depending upon the syntax of NAME. */
|
||
|
||
struct serial *
|
||
serial_open (const char *name)
|
||
{
|
||
struct serial *scb;
|
||
const struct serial_ops *ops;
|
||
const char *open_name = name;
|
||
|
||
if (strcmp (name, "pc") == 0)
|
||
ops = serial_interface_lookup ("pc");
|
||
else if (strncmp (name, "lpt", 3) == 0)
|
||
ops = serial_interface_lookup ("parallel");
|
||
else if (strncmp (name, "|", 1) == 0)
|
||
{
|
||
ops = serial_interface_lookup ("pipe");
|
||
/* Discard ``|'' and any space before the command itself. */
|
||
++open_name;
|
||
open_name = skip_spaces_const (open_name);
|
||
}
|
||
/* Check for a colon, suggesting an IP address/port pair.
|
||
Do this *after* checking for all the interesting prefixes. We
|
||
don't want to constrain the syntax of what can follow them. */
|
||
else if (strchr (name, ':'))
|
||
ops = serial_interface_lookup ("tcp");
|
||
else
|
||
ops = serial_interface_lookup ("hardwire");
|
||
|
||
if (!ops)
|
||
return NULL;
|
||
|
||
scb = XNEW (struct serial);
|
||
|
||
scb->ops = ops;
|
||
|
||
scb->bufcnt = 0;
|
||
scb->bufp = scb->buf;
|
||
scb->error_fd = -1;
|
||
scb->refcnt = 1;
|
||
|
||
/* `...->open (...)' would get expanded by the open(2) syscall macro. */
|
||
if ((*scb->ops->open) (scb, open_name))
|
||
{
|
||
xfree (scb);
|
||
return NULL;
|
||
}
|
||
|
||
scb->name = xstrdup (name);
|
||
scb->next = scb_base;
|
||
scb->debug_p = 0;
|
||
scb->async_state = 0;
|
||
scb->async_handler = NULL;
|
||
scb->async_context = NULL;
|
||
scb_base = scb;
|
||
|
||
if (serial_logfile != NULL)
|
||
{
|
||
serial_logfp = gdb_fopen (serial_logfile, "w");
|
||
if (serial_logfp == NULL)
|
||
perror_with_name (serial_logfile);
|
||
}
|
||
|
||
return scb;
|
||
}
|
||
|
||
/* Open a new serial stream using a file handle, using serial
|
||
interface ops OPS. */
|
||
|
||
static struct serial *
|
||
serial_fdopen_ops (const int fd, const struct serial_ops *ops)
|
||
{
|
||
struct serial *scb;
|
||
|
||
if (!ops)
|
||
{
|
||
ops = serial_interface_lookup ("terminal");
|
||
if (!ops)
|
||
ops = serial_interface_lookup ("hardwire");
|
||
}
|
||
|
||
if (!ops)
|
||
return NULL;
|
||
|
||
scb = XCNEW (struct serial);
|
||
|
||
scb->ops = ops;
|
||
|
||
scb->bufcnt = 0;
|
||
scb->bufp = scb->buf;
|
||
scb->error_fd = -1;
|
||
scb->refcnt = 1;
|
||
|
||
scb->name = NULL;
|
||
scb->next = scb_base;
|
||
scb->debug_p = 0;
|
||
scb->async_state = 0;
|
||
scb->async_handler = NULL;
|
||
scb->async_context = NULL;
|
||
scb_base = scb;
|
||
|
||
if ((ops->fdopen) != NULL)
|
||
(*ops->fdopen) (scb, fd);
|
||
else
|
||
scb->fd = fd;
|
||
|
||
return scb;
|
||
}
|
||
|
||
struct serial *
|
||
serial_fdopen (const int fd)
|
||
{
|
||
return serial_fdopen_ops (fd, NULL);
|
||
}
|
||
|
||
static void
|
||
do_serial_close (struct serial *scb, int really_close)
|
||
{
|
||
struct serial *tmp_scb;
|
||
|
||
if (serial_logfp)
|
||
{
|
||
fputs_unfiltered ("\nEnd of log\n", serial_logfp);
|
||
serial_current_type = 0;
|
||
|
||
/* XXX - What if serial_logfp == gdb_stdout or gdb_stderr? */
|
||
ui_file_delete (serial_logfp);
|
||
serial_logfp = NULL;
|
||
}
|
||
|
||
/* ensure that the FD has been taken out of async mode. */
|
||
if (scb->async_handler != NULL)
|
||
serial_async (scb, NULL, NULL);
|
||
|
||
if (really_close)
|
||
scb->ops->close (scb);
|
||
|
||
if (scb->name)
|
||
xfree (scb->name);
|
||
|
||
/* For serial_is_open. */
|
||
scb->bufp = NULL;
|
||
|
||
if (scb_base == scb)
|
||
scb_base = scb_base->next;
|
||
else
|
||
for (tmp_scb = scb_base; tmp_scb; tmp_scb = tmp_scb->next)
|
||
{
|
||
if (tmp_scb->next != scb)
|
||
continue;
|
||
|
||
tmp_scb->next = tmp_scb->next->next;
|
||
break;
|
||
}
|
||
|
||
serial_unref (scb);
|
||
}
|
||
|
||
void
|
||
serial_close (struct serial *scb)
|
||
{
|
||
do_serial_close (scb, 1);
|
||
}
|
||
|
||
void
|
||
serial_un_fdopen (struct serial *scb)
|
||
{
|
||
do_serial_close (scb, 0);
|
||
}
|
||
|
||
int
|
||
serial_is_open (struct serial *scb)
|
||
{
|
||
return scb->bufp != NULL;
|
||
}
|
||
|
||
void
|
||
serial_ref (struct serial *scb)
|
||
{
|
||
scb->refcnt++;
|
||
}
|
||
|
||
void
|
||
serial_unref (struct serial *scb)
|
||
{
|
||
--scb->refcnt;
|
||
if (scb->refcnt == 0)
|
||
xfree (scb);
|
||
}
|
||
|
||
int
|
||
serial_readchar (struct serial *scb, int timeout)
|
||
{
|
||
int ch;
|
||
|
||
/* FIXME: cagney/1999-10-11: Don't enable this check until the ASYNC
|
||
code is finished. */
|
||
if (0 && serial_is_async_p (scb) && timeout < 0)
|
||
internal_error (__FILE__, __LINE__,
|
||
_("serial_readchar: blocking read in async mode"));
|
||
|
||
ch = scb->ops->readchar (scb, timeout);
|
||
if (serial_logfp != NULL)
|
||
{
|
||
serial_logchar (serial_logfp, 'r', ch, timeout);
|
||
|
||
/* Make sure that the log file is as up-to-date as possible,
|
||
in case we are getting ready to dump core or something. */
|
||
gdb_flush (serial_logfp);
|
||
}
|
||
if (serial_debug_p (scb))
|
||
{
|
||
fprintf_unfiltered (gdb_stdlog, "[");
|
||
serial_logchar (gdb_stdlog, 'r', ch, timeout);
|
||
fprintf_unfiltered (gdb_stdlog, "]");
|
||
gdb_flush (gdb_stdlog);
|
||
}
|
||
|
||
return (ch);
|
||
}
|
||
|
||
int
|
||
serial_write (struct serial *scb, const void *buf, size_t count)
|
||
{
|
||
if (serial_logfp != NULL)
|
||
{
|
||
const char *str = buf;
|
||
size_t c;
|
||
|
||
for (c = 0; c < count; c++)
|
||
serial_logchar (serial_logfp, 'w', str[c] & 0xff, 0);
|
||
|
||
/* Make sure that the log file is as up-to-date as possible,
|
||
in case we are getting ready to dump core or something. */
|
||
gdb_flush (serial_logfp);
|
||
}
|
||
if (serial_debug_p (scb))
|
||
{
|
||
const char *str = buf;
|
||
size_t c;
|
||
|
||
for (c = 0; c < count; c++)
|
||
{
|
||
fprintf_unfiltered (gdb_stdlog, "[");
|
||
serial_logchar (gdb_stdlog, 'w', str[count] & 0xff, 0);
|
||
fprintf_unfiltered (gdb_stdlog, "]");
|
||
}
|
||
gdb_flush (gdb_stdlog);
|
||
}
|
||
|
||
return (scb->ops->write (scb, buf, count));
|
||
}
|
||
|
||
void
|
||
serial_printf (struct serial *desc, const char *format,...)
|
||
{
|
||
va_list args;
|
||
char *buf;
|
||
va_start (args, format);
|
||
|
||
buf = xstrvprintf (format, args);
|
||
serial_write (desc, buf, strlen (buf));
|
||
|
||
xfree (buf);
|
||
va_end (args);
|
||
}
|
||
|
||
int
|
||
serial_drain_output (struct serial *scb)
|
||
{
|
||
return scb->ops->drain_output (scb);
|
||
}
|
||
|
||
int
|
||
serial_flush_output (struct serial *scb)
|
||
{
|
||
return scb->ops->flush_output (scb);
|
||
}
|
||
|
||
int
|
||
serial_flush_input (struct serial *scb)
|
||
{
|
||
return scb->ops->flush_input (scb);
|
||
}
|
||
|
||
int
|
||
serial_send_break (struct serial *scb)
|
||
{
|
||
if (serial_logfp != NULL)
|
||
serial_logchar (serial_logfp, 'w', SERIAL_BREAK, 0);
|
||
|
||
return (scb->ops->send_break (scb));
|
||
}
|
||
|
||
void
|
||
serial_raw (struct serial *scb)
|
||
{
|
||
scb->ops->go_raw (scb);
|
||
}
|
||
|
||
serial_ttystate
|
||
serial_get_tty_state (struct serial *scb)
|
||
{
|
||
return scb->ops->get_tty_state (scb);
|
||
}
|
||
|
||
serial_ttystate
|
||
serial_copy_tty_state (struct serial *scb, serial_ttystate ttystate)
|
||
{
|
||
return scb->ops->copy_tty_state (scb, ttystate);
|
||
}
|
||
|
||
int
|
||
serial_set_tty_state (struct serial *scb, serial_ttystate ttystate)
|
||
{
|
||
return scb->ops->set_tty_state (scb, ttystate);
|
||
}
|
||
|
||
void
|
||
serial_print_tty_state (struct serial *scb,
|
||
serial_ttystate ttystate,
|
||
struct ui_file *stream)
|
||
{
|
||
scb->ops->print_tty_state (scb, ttystate, stream);
|
||
}
|
||
|
||
int
|
||
serial_noflush_set_tty_state (struct serial *scb,
|
||
serial_ttystate new_ttystate,
|
||
serial_ttystate old_ttystate)
|
||
{
|
||
return scb->ops->noflush_set_tty_state (scb, new_ttystate, old_ttystate);
|
||
}
|
||
|
||
int
|
||
serial_setbaudrate (struct serial *scb, int rate)
|
||
{
|
||
return scb->ops->setbaudrate (scb, rate);
|
||
}
|
||
|
||
int
|
||
serial_setstopbits (struct serial *scb, int num)
|
||
{
|
||
return scb->ops->setstopbits (scb, num);
|
||
}
|
||
|
||
int
|
||
serial_can_async_p (struct serial *scb)
|
||
{
|
||
return (scb->ops->async != NULL);
|
||
}
|
||
|
||
int
|
||
serial_is_async_p (struct serial *scb)
|
||
{
|
||
return (scb->ops->async != NULL) && (scb->async_handler != NULL);
|
||
}
|
||
|
||
void
|
||
serial_async (struct serial *scb,
|
||
serial_event_ftype *handler,
|
||
void *context)
|
||
{
|
||
int changed = ((scb->async_handler == NULL) != (handler == NULL));
|
||
|
||
scb->async_handler = handler;
|
||
scb->async_context = context;
|
||
/* Only change mode if there is a need. */
|
||
if (changed)
|
||
scb->ops->async (scb, handler != NULL);
|
||
}
|
||
|
||
void
|
||
serial_debug (struct serial *scb, int debug_p)
|
||
{
|
||
scb->debug_p = debug_p;
|
||
}
|
||
|
||
int
|
||
serial_debug_p (struct serial *scb)
|
||
{
|
||
return scb->debug_p || global_serial_debug_p;
|
||
}
|
||
|
||
#ifdef USE_WIN32API
|
||
void
|
||
serial_wait_handle (struct serial *scb, HANDLE *read, HANDLE *except)
|
||
{
|
||
if (scb->ops->wait_handle)
|
||
scb->ops->wait_handle (scb, read, except);
|
||
else
|
||
{
|
||
*read = (HANDLE) _get_osfhandle (scb->fd);
|
||
*except = NULL;
|
||
}
|
||
}
|
||
|
||
void
|
||
serial_done_wait_handle (struct serial *scb)
|
||
{
|
||
if (scb->ops->done_wait_handle)
|
||
scb->ops->done_wait_handle (scb);
|
||
}
|
||
#endif
|
||
|
||
int
|
||
serial_pipe (struct serial *scbs[2])
|
||
{
|
||
const struct serial_ops *ops;
|
||
int fildes[2];
|
||
|
||
ops = serial_interface_lookup ("pipe");
|
||
if (!ops)
|
||
{
|
||
errno = ENOSYS;
|
||
return -1;
|
||
}
|
||
|
||
if (gdb_pipe (fildes) == -1)
|
||
return -1;
|
||
|
||
scbs[0] = serial_fdopen_ops (fildes[0], ops);
|
||
scbs[1] = serial_fdopen_ops (fildes[1], ops);
|
||
return 0;
|
||
}
|
||
|
||
/* Serial set/show framework. */
|
||
|
||
static struct cmd_list_element *serial_set_cmdlist;
|
||
static struct cmd_list_element *serial_show_cmdlist;
|
||
|
||
static void
|
||
serial_set_cmd (char *args, int from_tty)
|
||
{
|
||
printf_unfiltered ("\"set serial\" must be followed "
|
||
"by the name of a command.\n");
|
||
help_list (serial_set_cmdlist, "set serial ", -1, gdb_stdout);
|
||
}
|
||
|
||
static void
|
||
serial_show_cmd (char *args, int from_tty)
|
||
{
|
||
cmd_show_list (serial_show_cmdlist, from_tty, "");
|
||
}
|
||
|
||
/* Baud rate specified for talking to serial target systems. Default
|
||
is left as -1, so targets can choose their own defaults. */
|
||
/* FIXME: This means that "show serial baud" and gr_files_info can
|
||
print -1 or (unsigned int)-1. This is a Bad User Interface. */
|
||
|
||
int baud_rate = -1;
|
||
|
||
static void
|
||
serial_baud_show_cmd (struct ui_file *file, int from_tty,
|
||
struct cmd_list_element *c, const char *value)
|
||
{
|
||
fprintf_filtered (file, _("Baud rate for remote serial I/O is %s.\n"),
|
||
value);
|
||
}
|
||
|
||
void
|
||
_initialize_serial (void)
|
||
{
|
||
#if 0
|
||
add_com ("connect", class_obscure, connect_command, _("\
|
||
Connect the terminal directly up to the command monitor.\n\
|
||
Use <CR>~. or <CR>~^D to break out."));
|
||
#endif /* 0 */
|
||
|
||
add_prefix_cmd ("serial", class_maintenance, serial_set_cmd, _("\
|
||
Set default serial/parallel port configuration."),
|
||
&serial_set_cmdlist, "set serial ",
|
||
0/*allow-unknown*/,
|
||
&setlist);
|
||
|
||
add_prefix_cmd ("serial", class_maintenance, serial_show_cmd, _("\
|
||
Show default serial/parallel port configuration."),
|
||
&serial_show_cmdlist, "show serial ",
|
||
0/*allow-unknown*/,
|
||
&showlist);
|
||
|
||
/* If target is open when baud changes, it doesn't take effect until
|
||
the next open (I think, not sure). */
|
||
add_setshow_zinteger_cmd ("baud", no_class, &baud_rate, _("\
|
||
Set baud rate for remote serial I/O."), _("\
|
||
Show baud rate for remote serial I/O."), _("\
|
||
This value is used to set the speed of the serial port when debugging\n\
|
||
using remote targets."),
|
||
NULL,
|
||
serial_baud_show_cmd,
|
||
&serial_set_cmdlist, &serial_show_cmdlist);
|
||
|
||
/* The commands "set/show serial baud" used to have a different name.
|
||
Add aliases to those names to facilitate the transition, and mark
|
||
them as deprecated, in order to make users aware of the fact that
|
||
the command names have been changed. */
|
||
{
|
||
const char *cmd_name;
|
||
struct cmd_list_element *cmd;
|
||
|
||
/* FIXME: There is a limitation in the deprecation mechanism,
|
||
and the warning ends up not being displayed for prefixed
|
||
aliases. So use a real command instead of an alias. */
|
||
add_setshow_zinteger_cmd ("remotebaud", class_alias, &baud_rate, _("\
|
||
Set baud rate for remote serial I/O."), _("\
|
||
Show baud rate for remote serial I/O."), _("\
|
||
This value is used to set the speed of the serial port when debugging\n\
|
||
using remote targets."),
|
||
NULL,
|
||
serial_baud_show_cmd,
|
||
&setlist, &showlist);
|
||
cmd_name = "remotebaud";
|
||
cmd = lookup_cmd (&cmd_name, setlist, "", -1, 1);
|
||
deprecate_cmd (cmd, "set serial baud");
|
||
cmd_name
|
||
= "remotebaud"; /* needed because lookup_cmd updates the pointer */
|
||
cmd = lookup_cmd (&cmd_name, showlist, "", -1, 1);
|
||
deprecate_cmd (cmd, "show serial baud");
|
||
}
|
||
|
||
add_setshow_filename_cmd ("remotelogfile", no_class, &serial_logfile, _("\
|
||
Set filename for remote session recording."), _("\
|
||
Show filename for remote session recording."), _("\
|
||
This file is used to record the remote session for future playback\n\
|
||
by gdbserver."),
|
||
NULL,
|
||
NULL, /* FIXME: i18n: */
|
||
&setlist, &showlist);
|
||
|
||
add_setshow_enum_cmd ("remotelogbase", no_class, logbase_enums,
|
||
&serial_logbase, _("\
|
||
Set numerical base for remote session logging"), _("\
|
||
Show numerical base for remote session logging"), NULL,
|
||
NULL,
|
||
NULL, /* FIXME: i18n: */
|
||
&setlist, &showlist);
|
||
|
||
add_setshow_zuinteger_cmd ("serial", class_maintenance,
|
||
&global_serial_debug_p, _("\
|
||
Set serial debugging."), _("\
|
||
Show serial debugging."), _("\
|
||
When non-zero, serial port debugging is enabled."),
|
||
NULL,
|
||
NULL, /* FIXME: i18n: */
|
||
&setdebuglist, &showdebuglist);
|
||
}
|