mirror of
https://github.com/darlinghq/darling-gdb.git
synced 2024-11-25 13:09:48 +00:00
349c5d5f6c
* gdb-events.sh (XMALLOC): Delete macro. * gdb-events.c, gdb-events.h: Regenerate. * gdbarch.sh (XMALLOC): Delete macro. * gdbarch.c: Regenerate. * serial.c (XMALLOC): Delete macro. * ui-file.c (XMALLOC): Ditto. * ser-unix.h (XMALLOC): Ditto. * sh-tdep.c (XMALLOC): Ditto. * ui-out.c (XMALLOC): Ditto. * utils.c (XMALLOC): Ditto. * i386-tdep.c (XMALLOC): Ditto. * gdb-events.c (XMALLOC): Ditto. * d10v-tdep.c (XMALLOC): Ditto. * cli-out.c (XMALLOC): Ditto. * cli-out.c, d10v-tdep.c, gdb-events.c: Update copyright. * gdb-events.sh, i386-tdep.c, ser-unix.h, serial.c: Ditto. * ui-file.c, ui-out.c: Ditto.
713 lines
16 KiB
C
713 lines
16 KiB
C
/* Generic serial interface routines
|
||
|
||
Copyright 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000,
|
||
2001, 2002 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 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. */
|
||
|
||
#include "defs.h"
|
||
#include <ctype.h>
|
||
#include "serial.h"
|
||
#include "gdb_string.h"
|
||
#include "gdbcmd.h"
|
||
|
||
extern void _initialize_serial (void);
|
||
|
||
/* Is serial being debugged? */
|
||
|
||
static int global_serial_debug_p;
|
||
|
||
/* Linked list of serial I/O handlers */
|
||
|
||
static struct serial_ops *serial_ops_list = NULL;
|
||
|
||
/* This is the last serial stream opened. Used by connect command. */
|
||
|
||
static struct serial *last_serial_opened = 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 struct serial_ops *serial_interface_lookup (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 *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 struct serial_ops *
|
||
serial_interface_lookup (char *name)
|
||
{
|
||
struct serial_ops *ops;
|
||
|
||
for (ops = serial_ops_list; ops; ops = ops->next)
|
||
if (strcmp (name, ops->name) == 0)
|
||
return ops;
|
||
|
||
return NULL;
|
||
}
|
||
|
||
void
|
||
serial_add_interface (struct serial_ops *optable)
|
||
{
|
||
optable->next = serial_ops_list;
|
||
serial_ops_list = optable;
|
||
}
|
||
|
||
/* Open up a device or a network socket, depending upon the syntax of NAME. */
|
||
|
||
struct serial *
|
||
serial_open (const char *name)
|
||
{
|
||
struct serial *scb;
|
||
struct serial_ops *ops;
|
||
const char *open_name = name;
|
||
|
||
for (scb = scb_base; scb; scb = scb->next)
|
||
if (scb->name && strcmp (scb->name, name) == 0)
|
||
{
|
||
scb->refcnt++;
|
||
return scb;
|
||
}
|
||
|
||
if (strcmp (name, "pc") == 0)
|
||
ops = serial_interface_lookup ("pc");
|
||
else if (strchr (name, ':'))
|
||
ops = serial_interface_lookup ("tcp");
|
||
else if (strncmp (name, "lpt", 3) == 0)
|
||
ops = serial_interface_lookup ("parallel");
|
||
else if (strncmp (name, "|", 1) == 0)
|
||
{
|
||
ops = serial_interface_lookup ("pipe");
|
||
open_name = name + 1; /* discard ``|'' */
|
||
}
|
||
else
|
||
ops = serial_interface_lookup ("hardwire");
|
||
|
||
if (!ops)
|
||
return NULL;
|
||
|
||
scb = XMALLOC (struct serial);
|
||
|
||
scb->ops = ops;
|
||
|
||
scb->bufcnt = 0;
|
||
scb->bufp = scb->buf;
|
||
|
||
if (scb->ops->open (scb, open_name))
|
||
{
|
||
xfree (scb);
|
||
return NULL;
|
||
}
|
||
|
||
scb->name = xstrdup (name);
|
||
scb->next = scb_base;
|
||
scb->refcnt = 1;
|
||
scb->debug_p = 0;
|
||
scb->async_state = 0;
|
||
scb->async_handler = NULL;
|
||
scb->async_context = NULL;
|
||
scb_base = scb;
|
||
|
||
last_serial_opened = scb;
|
||
|
||
if (serial_logfile != NULL)
|
||
{
|
||
serial_logfp = gdb_fopen (serial_logfile, "w");
|
||
if (serial_logfp == NULL)
|
||
perror_with_name (serial_logfile);
|
||
}
|
||
|
||
return scb;
|
||
}
|
||
|
||
struct serial *
|
||
serial_fdopen (const int fd)
|
||
{
|
||
struct serial *scb;
|
||
struct serial_ops *ops;
|
||
|
||
for (scb = scb_base; scb; scb = scb->next)
|
||
if (scb->fd == fd)
|
||
{
|
||
scb->refcnt++;
|
||
return scb;
|
||
}
|
||
|
||
ops = serial_interface_lookup ("hardwire");
|
||
|
||
if (!ops)
|
||
return NULL;
|
||
|
||
scb = XMALLOC (struct serial);
|
||
|
||
scb->ops = ops;
|
||
|
||
scb->bufcnt = 0;
|
||
scb->bufp = scb->buf;
|
||
|
||
scb->fd = fd;
|
||
|
||
scb->name = NULL;
|
||
scb->next = scb_base;
|
||
scb->refcnt = 1;
|
||
scb->debug_p = 0;
|
||
scb->async_state = 0;
|
||
scb->async_handler = NULL;
|
||
scb->async_context = NULL;
|
||
scb_base = scb;
|
||
|
||
last_serial_opened = scb;
|
||
|
||
return scb;
|
||
}
|
||
|
||
static void
|
||
do_serial_close (struct serial *scb, int really_close)
|
||
{
|
||
struct serial *tmp_scb;
|
||
|
||
last_serial_opened = NULL;
|
||
|
||
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;
|
||
}
|
||
|
||
/* This is bogus. It's not our fault if you pass us a bad scb...! Rob, you
|
||
should fix your code instead. */
|
||
|
||
if (!scb)
|
||
return;
|
||
|
||
scb->refcnt--;
|
||
if (scb->refcnt > 0)
|
||
return;
|
||
|
||
/* 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);
|
||
|
||
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;
|
||
}
|
||
|
||
xfree (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_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 char *str, int len)
|
||
{
|
||
if (serial_logfp != NULL)
|
||
{
|
||
int count;
|
||
|
||
for (count = 0; count < len; count++)
|
||
serial_logchar (serial_logfp, 'w', str[count] & 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);
|
||
}
|
||
|
||
return (scb->ops->write (scb, str, len));
|
||
}
|
||
|
||
void
|
||
serial_printf (struct serial *desc, const char *format,...)
|
||
{
|
||
va_list args;
|
||
char *buf;
|
||
va_start (args, format);
|
||
|
||
xvasprintf (&buf, 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);
|
||
}
|
||
|
||
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)
|
||
{
|
||
/* Only change mode if there is a need. */
|
||
if ((scb->async_handler == NULL)
|
||
!= (handler == NULL))
|
||
scb->ops->async (scb, handler != NULL);
|
||
scb->async_handler = handler;
|
||
scb->async_context = context;
|
||
}
|
||
|
||
int
|
||
deprecated_serial_fd (struct serial *scb)
|
||
{
|
||
/* FIXME: should this output a warning that deprecated code is being
|
||
called? */
|
||
if (scb->fd < 0)
|
||
{
|
||
internal_error (__FILE__, __LINE__,
|
||
"serial: FD not valid");
|
||
}
|
||
return scb->fd; /* sigh */
|
||
}
|
||
|
||
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;
|
||
}
|
||
|
||
|
||
#if 0
|
||
/* The connect command is #if 0 because I hadn't thought of an elegant
|
||
way to wait for I/O on two `struct serial *'s simultaneously. Two
|
||
solutions came to mind:
|
||
|
||
1) Fork, and have have one fork handle the to user direction,
|
||
and have the other hand the to target direction. This
|
||
obviously won't cut it for MSDOS.
|
||
|
||
2) Use something like select. This assumes that stdin and
|
||
the target side can both be waited on via the same
|
||
mechanism. This may not be true for DOS, if GDB is
|
||
talking to the target via a TCP socket.
|
||
-grossman, 8 Jun 93 */
|
||
|
||
/* Connect the user directly to the remote system. This command acts just like
|
||
the 'cu' or 'tip' command. Use <CR>~. or <CR>~^D to break out. */
|
||
|
||
static struct serial *tty_desc; /* Controlling terminal */
|
||
|
||
static void
|
||
cleanup_tty (serial_ttystate ttystate)
|
||
{
|
||
printf_unfiltered ("\r\n[Exiting connect mode]\r\n");
|
||
serial_set_tty_state (tty_desc, ttystate);
|
||
xfree (ttystate);
|
||
serial_close (tty_desc);
|
||
}
|
||
|
||
static void
|
||
connect_command (char *args, int fromtty)
|
||
{
|
||
int c;
|
||
char cur_esc = 0;
|
||
serial_ttystate ttystate;
|
||
struct serial *port_desc; /* TTY port */
|
||
|
||
dont_repeat ();
|
||
|
||
if (args)
|
||
fprintf_unfiltered (gdb_stderr, "This command takes no args. They have been ignored.\n");
|
||
|
||
printf_unfiltered ("[Entering connect mode. Use ~. or ~^D to escape]\n");
|
||
|
||
tty_desc = serial_fdopen (0);
|
||
port_desc = last_serial_opened;
|
||
|
||
ttystate = serial_get_tty_state (tty_desc);
|
||
|
||
serial_raw (tty_desc);
|
||
serial_raw (port_desc);
|
||
|
||
make_cleanup (cleanup_tty, ttystate);
|
||
|
||
while (1)
|
||
{
|
||
int mask;
|
||
|
||
mask = serial_wait_2 (tty_desc, port_desc, -1);
|
||
|
||
if (mask & 2)
|
||
{ /* tty input */
|
||
char cx;
|
||
|
||
while (1)
|
||
{
|
||
c = serial_readchar (tty_desc, 0);
|
||
|
||
if (c == SERIAL_TIMEOUT)
|
||
break;
|
||
|
||
if (c < 0)
|
||
perror_with_name ("connect");
|
||
|
||
cx = c;
|
||
serial_write (port_desc, &cx, 1);
|
||
|
||
switch (cur_esc)
|
||
{
|
||
case 0:
|
||
if (c == '\r')
|
||
cur_esc = c;
|
||
break;
|
||
case '\r':
|
||
if (c == '~')
|
||
cur_esc = c;
|
||
else
|
||
cur_esc = 0;
|
||
break;
|
||
case '~':
|
||
if (c == '.' || c == '\004')
|
||
return;
|
||
else
|
||
cur_esc = 0;
|
||
}
|
||
}
|
||
}
|
||
|
||
if (mask & 1)
|
||
{ /* Port input */
|
||
char cx;
|
||
|
||
while (1)
|
||
{
|
||
c = serial_readchar (port_desc, 0);
|
||
|
||
if (c == SERIAL_TIMEOUT)
|
||
break;
|
||
|
||
if (c < 0)
|
||
perror_with_name ("connect");
|
||
|
||
cx = c;
|
||
|
||
serial_write (tty_desc, &cx, 1);
|
||
}
|
||
}
|
||
}
|
||
}
|
||
#endif /* 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, "");
|
||
}
|
||
|
||
|
||
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);
|
||
|
||
add_show_from_set
|
||
(add_set_cmd ("remotelogfile", no_class,
|
||
var_filename, (char *) &serial_logfile,
|
||
"Set filename for remote session recording.\n\
|
||
This file is used to record the remote session for future playback\n\
|
||
by gdbserver.",
|
||
&setlist),
|
||
&showlist);
|
||
|
||
add_show_from_set
|
||
(add_set_enum_cmd ("remotelogbase", no_class,
|
||
logbase_enums, &serial_logbase,
|
||
"Set numerical base for remote session logging",
|
||
&setlist),
|
||
&showlist);
|
||
|
||
add_show_from_set (add_set_cmd ("serial",
|
||
class_maintenance,
|
||
var_zinteger,
|
||
(char *)&global_serial_debug_p,
|
||
"Set serial debugging.\n\
|
||
When non-zero, serial port debugging is enabled.", &setdebuglist),
|
||
&showdebuglist);
|
||
}
|