/* Generic serial interface routines
- Copyright 1992, 1993 Free Software Foundation, Inc.
+ Copyright 1992, 1993, 1996 Free Software Foundation, Inc.
This file is part of GDB.
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., 675 Mass Ave, Cambridge, MA 02139, USA. */
+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"
+
+/*#define DEBUGIFY*/
+#include "debugify.h"
+
/* Linked list of serial I/O handlers */
static serial_t last_serial_opened = NULL;
+/* Pointer to list of scb's. */
+
+static serial_t 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 FILE *serial_logfp = NULL;
+
+static struct serial_ops *serial_interface_lookup PARAMS ((char *));
+static void serial_logchar PARAMS ((int ch, int timeout));
+static char logbase_hex[] = "hex";
+static char logbase_octal[] = "octal";
+static char logbase_ascii[] = "ascii";
+static char *logbase_enums[] = {logbase_hex, logbase_octal, logbase_ascii, NULL};
+static char *serial_logbase = logbase_ascii;
+
+\f
+static int serial_reading = 0;
+static int serial_writing = 0;
+
+void
+serial_log_command (cmd)
+ const char *cmd;
+{
+ if (!serial_logfp)
+ return;
+
+ if (serial_reading || serial_writing)
+ {
+ fputc_unfiltered ('\n', serial_logfp);
+ serial_reading = 0;
+ serial_writing = 0;
+ }
+ fprintf_unfiltered (serial_logfp, "c %s\n", cmd);
+ /* Make sure that the log file is as up-to-date as possible,
+ in case we are getting ready to dump core or something. */
+ fflush (serial_logfp);
+}
+
+/* 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 (ch, timeout)
+ int ch;
+ int timeout;
+{
+ if (serial_logbase != logbase_ascii)
+ fputc_unfiltered (' ', serial_logfp);
+
+ switch (ch)
+ {
+ case SERIAL_TIMEOUT:
+ fprintf_unfiltered (serial_logfp, "<Timeout: %d seconds>", timeout);
+ return;
+ case SERIAL_ERROR:
+ fprintf_unfiltered (serial_logfp, "<Error: %s>", safe_strerror (errno));
+ return;
+ case SERIAL_EOF:
+ fputs_unfiltered ("<Eof>", serial_logfp);
+ return;
+ case SERIAL_BREAK:
+ fputs_unfiltered ("<Break>", serial_logfp);
+ return;
+ default:
+ if (serial_logbase == logbase_hex)
+ fprintf_unfiltered (serial_logfp, "%02x", ch & 0xff);
+ else if (serial_logbase == logbase_octal)
+ fprintf_unfiltered (serial_logfp, "%03o", ch & 0xff);
+ else
+ switch (ch)
+ {
+ case '\\': fputs_unfiltered ("\\\\", serial_logfp); break;
+ case '\b': fputs_unfiltered ("\\b", serial_logfp); break;
+ case '\f': fputs_unfiltered ("\\f", serial_logfp); break;
+ case '\n': fputs_unfiltered ("\\n", serial_logfp); break;
+ case '\r': fputs_unfiltered ("\\r", serial_logfp); break;
+ case '\t': fputs_unfiltered ("\\t", serial_logfp); break;
+ case '\v': fputs_unfiltered ("\\v", serial_logfp); break;
+ default: fprintf_unfiltered (serial_logfp, isprint (ch) ? "%c" : "\\x%02x", ch & 0xFF); break;
+ }
+ }
+}
+
+int
+serial_write (scb, str, len)
+ serial_t scb;
+ const char *str;
+ int len;
+{
+ int count;
+
+ if (serial_logfp != NULL)
+ {
+ if (serial_reading)
+ {
+ fputc_unfiltered ('\n', serial_logfp);
+ serial_reading = 0;
+ }
+ if (!serial_writing)
+ {
+ fputs_unfiltered ("w ", serial_logfp);
+ serial_writing = 1;
+ }
+ for (count = 0; count < len; count++)
+ {
+ serial_logchar (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. */
+ fflush (serial_logfp);
+ }
+ return (scb -> ops -> write (scb, str, len));
+}
+
+int
+serial_readchar (scb, timeout)
+ serial_t scb;
+ int timeout;
+{
+ int ch;
+
+ ch = scb -> ops -> readchar (scb, timeout);
+ if (serial_logfp != NULL)
+ {
+ if (serial_writing)
+ {
+ fputc_unfiltered ('\n', serial_logfp);
+ serial_writing = 0;
+ }
+ if (!serial_reading)
+ {
+ fputs_unfiltered ("r ", serial_logfp);
+ serial_reading = 1;
+ }
+ serial_logchar (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. */
+ fflush (serial_logfp);
+ }
+ return (ch);
+}
+
+int
+serial_send_break (scb)
+ serial_t scb;
+{
+ if (serial_logfp != NULL)
+ {
+ if (serial_reading)
+ {
+ fputc_unfiltered ('\n', serial_logfp);
+ serial_reading = 0;
+ }
+ if (!serial_writing)
+ {
+ fputs_unfiltered ("w ", serial_logfp);
+ serial_writing = 1;
+ }
+ serial_logchar (SERIAL_BREAK, 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. */
+ fflush (serial_logfp);
+ }
+ return (scb -> ops -> send_break (scb));
+}
+
static struct serial_ops *
serial_interface_lookup (name)
char *name;
{
struct serial_ops *ops;
+ DBG(("serial_interface_lookup(%s)\n",name));
for (ops = serial_ops_list; ops; ops = ops->next)
if (strcmp (name, ops->name) == 0)
return ops;
+ DBG(("serial_interface_lookup: %s not found!\n",name));
return NULL;
}
serial_t scb;
struct serial_ops *ops;
+ DBG(("serial_open\n"));
for (scb = scb_base; scb; scb = scb->next)
if (scb->name && strcmp (scb->name, name) == 0)
{
scb->refcnt++;
+ DBG(("serial_open: scb %s found\n", name));
return scb;
}
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
ops = serial_interface_lookup ("hardwire");
if (!ops)
+ {
+ DBG(("serial_open: !ops; returning NULL\n"));
return NULL;
+ }
scb = (serial_t)xmalloc (sizeof (struct _serial_t));
if (scb->ops->open(scb, name))
{
free (scb);
+ DBG(("serial_open: scb->ops->open failed!\n"));
return NULL;
}
last_serial_opened = scb;
+ if (serial_logfile != NULL)
+ {
+ serial_logfp = fopen (serial_logfile, "w");
+ if (serial_logfp == NULL)
+ {
+ DBG(("serial_open: unable to open serial logfile %s!\n",serial_logfile));
+ perror_with_name (serial_logfile);
+ }
+ }
+
+ DBG(("serial_open: Done! :-)\n"));
return scb;
}
{
serial_t scb;
struct serial_ops *ops;
+ DBG(("serial_fdopen\n"));
for (scb = scb_base; scb; scb = scb->next)
if (scb->fd == fd)
}
void
-serial_close(scb)
+serial_close(scb, really_close)
serial_t scb;
+ int really_close;
{
serial_t tmp_scb;
last_serial_opened = NULL;
+ if (serial_logfp)
+ {
+ if (serial_reading || serial_writing)
+ {
+ fputc_unfiltered ('\n', serial_logfp);
+ serial_reading = 0;
+ serial_writing = 0;
+ }
+ fclose (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->refcnt > 0)
return;
- scb->ops->close (scb);
+ if (really_close)
+ scb->ops->close (scb);
if (scb->name)
free (scb->name);
char cur_esc = 0;
serial_ttystate ttystate;
serial_t port_desc; /* TTY port */
+ DBG(("connect_command\n"));
dont_repeat();
}
#endif /* 0 */
+/* VARARGS */
+void
+#ifdef ANSI_PROTOTYPES
+serial_printf (serial_t desc, const char *format, ...)
+#else
+serial_printf (va_alist)
+ va_dcl
+#endif
+{
+ va_list args;
+ char *buf;
+#ifdef ANSI_PROTOTYPES
+ va_start (args, format);
+#else
+ serial_t desc;
+ char *format;
+
+ va_start (args);
+ desc = va_arg (args, serial_t);
+ format = va_arg (args, char *);
+#endif
+
+ vasprintf (&buf, format, args);
+ SERIAL_WRITE (desc, buf, strlen (buf));
+
+ free (buf);
+ va_end (args);
+}
+
void
_initialize_serial ()
{
+ struct cmd_list_element *cmd;
+
#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_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,
+ (char *)&serial_logbase,
+ "Set ...",
+ &setlist),
+ &showlist);
}
projects / binutils.git / blobdiff