/* Generic serial interface routines
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/* Generic serial interface routines
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Copyright (C) 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001,
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Copyright (C) 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001,
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2002, 2004, 2005, 2006, 2007, 2008 Free Software Foundation, Inc.
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2002, 2004, 2005, 2006, 2007, 2008 Free Software Foundation, Inc.
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This file is part of GDB.
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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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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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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 3 of the License, or
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the Free Software Foundation; either version 3 of the License, or
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(at your option) any later version.
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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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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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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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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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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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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>. */
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along with this program. If not, see <http://www.gnu.org/licenses/>. */
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#include "defs.h"
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#include "defs.h"
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#include <ctype.h>
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#include <ctype.h>
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#include "serial.h"
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#include "serial.h"
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#include "gdb_string.h"
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#include "gdb_string.h"
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#include "gdbcmd.h"
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#include "gdbcmd.h"
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extern void _initialize_serial (void);
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extern void _initialize_serial (void);
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/* Is serial being debugged? */
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/* Is serial being debugged? */
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static int global_serial_debug_p;
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static int global_serial_debug_p;
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/* Linked list of serial I/O handlers */
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/* Linked list of serial I/O handlers */
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static struct serial_ops *serial_ops_list = NULL;
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static struct serial_ops *serial_ops_list = NULL;
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/* This is the last serial stream opened. Used by connect command. */
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/* This is the last serial stream opened. Used by connect command. */
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static struct serial *last_serial_opened = NULL;
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static struct serial *last_serial_opened = NULL;
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/* Pointer to list of scb's. */
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/* Pointer to list of scb's. */
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static struct serial *scb_base;
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static struct serial *scb_base;
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/* Non-NULL gives filename which contains a recording of the remote session,
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/* Non-NULL gives filename which contains a recording of the remote session,
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suitable for playback by gdbserver. */
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suitable for playback by gdbserver. */
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static char *serial_logfile = NULL;
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static char *serial_logfile = NULL;
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static struct ui_file *serial_logfp = NULL;
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static struct ui_file *serial_logfp = NULL;
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static struct serial_ops *serial_interface_lookup (char *);
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static struct serial_ops *serial_interface_lookup (char *);
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static void serial_logchar (struct ui_file *stream, int ch_type, int ch, int timeout);
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static void serial_logchar (struct ui_file *stream, int ch_type, int ch, int timeout);
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static const char logbase_hex[] = "hex";
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static const char logbase_hex[] = "hex";
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static const char logbase_octal[] = "octal";
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static const char logbase_octal[] = "octal";
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static const char logbase_ascii[] = "ascii";
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static const char logbase_ascii[] = "ascii";
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static const char *logbase_enums[] =
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static const char *logbase_enums[] =
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{logbase_hex, logbase_octal, logbase_ascii, NULL};
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{logbase_hex, logbase_octal, logbase_ascii, NULL};
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static const char *serial_logbase = logbase_ascii;
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static const char *serial_logbase = logbase_ascii;
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static int serial_current_type = 0;
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static int serial_current_type = 0;
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/* Log char CH of type CHTYPE, with TIMEOUT */
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/* Log char CH of type CHTYPE, with TIMEOUT */
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/* Define bogus char to represent a BREAK. Should be careful to choose a value
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/* Define bogus char to represent a BREAK. Should be careful to choose a value
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that can't be confused with a normal char, or an error code. */
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that can't be confused with a normal char, or an error code. */
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#define SERIAL_BREAK 1235
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#define SERIAL_BREAK 1235
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static void
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static void
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serial_logchar (struct ui_file *stream, int ch_type, int ch, int timeout)
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serial_logchar (struct ui_file *stream, int ch_type, int ch, int timeout)
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{
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{
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if (ch_type != serial_current_type)
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if (ch_type != serial_current_type)
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{
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{
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fprintf_unfiltered (stream, "\n%c ", ch_type);
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fprintf_unfiltered (stream, "\n%c ", ch_type);
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serial_current_type = ch_type;
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serial_current_type = ch_type;
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}
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}
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if (serial_logbase != logbase_ascii)
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if (serial_logbase != logbase_ascii)
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fputc_unfiltered (' ', stream);
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fputc_unfiltered (' ', stream);
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switch (ch)
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switch (ch)
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{
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{
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case SERIAL_TIMEOUT:
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case SERIAL_TIMEOUT:
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fprintf_unfiltered (stream, "<Timeout: %d seconds>", timeout);
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fprintf_unfiltered (stream, "<Timeout: %d seconds>", timeout);
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return;
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return;
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case SERIAL_ERROR:
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case SERIAL_ERROR:
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fprintf_unfiltered (stream, "<Error: %s>", safe_strerror (errno));
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fprintf_unfiltered (stream, "<Error: %s>", safe_strerror (errno));
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return;
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return;
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case SERIAL_EOF:
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case SERIAL_EOF:
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fputs_unfiltered ("<Eof>", stream);
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fputs_unfiltered ("<Eof>", stream);
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return;
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return;
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case SERIAL_BREAK:
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case SERIAL_BREAK:
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fputs_unfiltered ("<Break>", stream);
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fputs_unfiltered ("<Break>", stream);
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return;
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return;
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default:
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default:
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if (serial_logbase == logbase_hex)
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if (serial_logbase == logbase_hex)
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fprintf_unfiltered (stream, "%02x", ch & 0xff);
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fprintf_unfiltered (stream, "%02x", ch & 0xff);
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else if (serial_logbase == logbase_octal)
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else if (serial_logbase == logbase_octal)
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fprintf_unfiltered (stream, "%03o", ch & 0xff);
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fprintf_unfiltered (stream, "%03o", ch & 0xff);
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else
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else
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switch (ch)
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switch (ch)
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{
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{
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case '\\':
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case '\\':
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fputs_unfiltered ("\\\\", stream);
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fputs_unfiltered ("\\\\", stream);
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break;
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break;
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case '\b':
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case '\b':
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fputs_unfiltered ("\\b", stream);
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fputs_unfiltered ("\\b", stream);
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break;
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break;
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case '\f':
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case '\f':
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fputs_unfiltered ("\\f", stream);
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fputs_unfiltered ("\\f", stream);
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break;
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break;
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case '\n':
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case '\n':
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fputs_unfiltered ("\\n", stream);
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fputs_unfiltered ("\\n", stream);
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break;
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break;
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case '\r':
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case '\r':
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fputs_unfiltered ("\\r", stream);
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fputs_unfiltered ("\\r", stream);
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break;
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break;
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case '\t':
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case '\t':
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fputs_unfiltered ("\\t", stream);
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fputs_unfiltered ("\\t", stream);
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break;
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break;
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case '\v':
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case '\v':
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fputs_unfiltered ("\\v", stream);
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fputs_unfiltered ("\\v", stream);
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break;
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break;
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default:
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default:
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fprintf_unfiltered (stream, isprint (ch) ? "%c" : "\\x%02x", ch & 0xFF);
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fprintf_unfiltered (stream, isprint (ch) ? "%c" : "\\x%02x", ch & 0xFF);
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break;
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break;
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}
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}
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}
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}
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}
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}
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void
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void
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serial_log_command (const char *cmd)
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serial_log_command (const char *cmd)
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{
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{
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if (!serial_logfp)
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if (!serial_logfp)
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return;
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return;
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serial_current_type = 'c';
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serial_current_type = 'c';
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fputs_unfiltered ("\nc ", serial_logfp);
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fputs_unfiltered ("\nc ", serial_logfp);
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fputs_unfiltered (cmd, serial_logfp);
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fputs_unfiltered (cmd, serial_logfp);
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/* Make sure that the log file is as up-to-date as possible,
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/* Make sure that the log file is as up-to-date as possible,
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in case we are getting ready to dump core or something. */
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in case we are getting ready to dump core or something. */
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gdb_flush (serial_logfp);
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gdb_flush (serial_logfp);
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}
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}
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static struct serial_ops *
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static struct serial_ops *
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serial_interface_lookup (char *name)
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serial_interface_lookup (char *name)
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{
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{
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struct serial_ops *ops;
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struct serial_ops *ops;
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for (ops = serial_ops_list; ops; ops = ops->next)
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for (ops = serial_ops_list; ops; ops = ops->next)
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if (strcmp (name, ops->name) == 0)
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if (strcmp (name, ops->name) == 0)
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return ops;
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return ops;
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return NULL;
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return NULL;
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}
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}
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void
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void
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serial_add_interface (struct serial_ops *optable)
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serial_add_interface (struct serial_ops *optable)
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{
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{
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optable->next = serial_ops_list;
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optable->next = serial_ops_list;
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serial_ops_list = optable;
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serial_ops_list = optable;
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}
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}
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/* Open up a device or a network socket, depending upon the syntax of NAME. */
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/* Open up a device or a network socket, depending upon the syntax of NAME. */
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struct serial *
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struct serial *
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serial_open (const char *name)
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serial_open (const char *name)
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{
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{
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struct serial *scb;
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struct serial *scb;
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struct serial_ops *ops;
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struct serial_ops *ops;
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const char *open_name = name;
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const char *open_name = name;
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for (scb = scb_base; scb; scb = scb->next)
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for (scb = scb_base; scb; scb = scb->next)
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if (scb->name && strcmp (scb->name, name) == 0)
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if (scb->name && strcmp (scb->name, name) == 0)
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{
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{
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scb->refcnt++;
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scb->refcnt++;
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return scb;
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return scb;
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}
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}
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if (strcmp (name, "pc") == 0)
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if (strcmp (name, "pc") == 0)
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ops = serial_interface_lookup ("pc");
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ops = serial_interface_lookup ("pc");
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else if (strncmp (name, "lpt", 3) == 0)
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else if (strncmp (name, "lpt", 3) == 0)
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ops = serial_interface_lookup ("parallel");
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ops = serial_interface_lookup ("parallel");
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else if (strncmp (name, "|", 1) == 0)
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else if (strncmp (name, "|", 1) == 0)
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{
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{
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ops = serial_interface_lookup ("pipe");
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ops = serial_interface_lookup ("pipe");
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/* Discard ``|'' and any space before the command itself. */
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/* Discard ``|'' and any space before the command itself. */
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++open_name;
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++open_name;
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while (isspace (*open_name))
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while (isspace (*open_name))
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++open_name;
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++open_name;
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}
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}
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/* Check for a colon, suggesting an IP address/port pair.
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/* Check for a colon, suggesting an IP address/port pair.
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Do this *after* checking for all the interesting prefixes. We
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Do this *after* checking for all the interesting prefixes. We
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don't want to constrain the syntax of what can follow them. */
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don't want to constrain the syntax of what can follow them. */
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else if (strchr (name, ':'))
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else if (strchr (name, ':'))
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ops = serial_interface_lookup ("tcp");
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ops = serial_interface_lookup ("tcp");
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else
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else
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ops = serial_interface_lookup ("hardwire");
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ops = serial_interface_lookup ("hardwire");
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if (!ops)
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if (!ops)
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return NULL;
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return NULL;
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scb = XMALLOC (struct serial);
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scb = XMALLOC (struct serial);
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scb->ops = ops;
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scb->ops = ops;
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scb->bufcnt = 0;
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scb->bufcnt = 0;
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scb->bufp = scb->buf;
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scb->bufp = scb->buf;
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scb->error_fd = -1;
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scb->error_fd = -1;
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/* `...->open (...)' would get expanded by an the open(2) syscall macro. */
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/* `...->open (...)' would get expanded by an the open(2) syscall macro. */
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if ((*scb->ops->open) (scb, open_name))
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if ((*scb->ops->open) (scb, open_name))
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{
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{
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xfree (scb);
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xfree (scb);
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return NULL;
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return NULL;
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}
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}
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scb->name = xstrdup (name);
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scb->name = xstrdup (name);
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scb->next = scb_base;
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scb->next = scb_base;
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scb->refcnt = 1;
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scb->refcnt = 1;
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scb->debug_p = 0;
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scb->debug_p = 0;
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scb->async_state = 0;
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scb->async_state = 0;
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scb->async_handler = NULL;
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scb->async_handler = NULL;
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scb->async_context = NULL;
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scb->async_context = NULL;
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scb_base = scb;
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scb_base = scb;
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last_serial_opened = scb;
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last_serial_opened = scb;
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if (serial_logfile != NULL)
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if (serial_logfile != NULL)
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{
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{
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serial_logfp = gdb_fopen (serial_logfile, "w");
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serial_logfp = gdb_fopen (serial_logfile, "w");
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if (serial_logfp == NULL)
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if (serial_logfp == NULL)
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perror_with_name (serial_logfile);
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perror_with_name (serial_logfile);
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}
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}
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return scb;
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return scb;
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}
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}
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/* Return the open serial device for FD, if found, or NULL if FD
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/* Return the open serial device for FD, if found, or NULL if FD
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is not already opened. */
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is not already opened. */
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struct serial *
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struct serial *
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serial_for_fd (int fd)
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serial_for_fd (int fd)
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{
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{
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struct serial *scb;
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struct serial *scb;
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struct serial_ops *ops;
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struct serial_ops *ops;
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for (scb = scb_base; scb; scb = scb->next)
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for (scb = scb_base; scb; scb = scb->next)
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if (scb->fd == fd)
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if (scb->fd == fd)
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return scb;
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return scb;
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return NULL;
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return NULL;
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}
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}
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struct serial *
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struct serial *
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serial_fdopen (const int fd)
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serial_fdopen (const int fd)
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{
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{
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struct serial *scb;
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struct serial *scb;
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struct serial_ops *ops;
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struct serial_ops *ops;
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for (scb = scb_base; scb; scb = scb->next)
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for (scb = scb_base; scb; scb = scb->next)
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if (scb->fd == fd)
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if (scb->fd == fd)
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{
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{
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scb->refcnt++;
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scb->refcnt++;
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return scb;
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return scb;
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}
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}
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ops = serial_interface_lookup ("terminal");
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ops = serial_interface_lookup ("terminal");
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if (!ops)
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if (!ops)
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ops = serial_interface_lookup ("hardwire");
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ops = serial_interface_lookup ("hardwire");
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if (!ops)
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if (!ops)
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return NULL;
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return NULL;
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scb = XCALLOC (1, struct serial);
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scb = XCALLOC (1, struct serial);
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|
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scb->ops = ops;
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scb->ops = ops;
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scb->bufcnt = 0;
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scb->bufcnt = 0;
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scb->bufp = scb->buf;
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scb->bufp = scb->buf;
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|
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scb->fd = fd;
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scb->fd = fd;
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scb->name = NULL;
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scb->name = NULL;
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scb->next = scb_base;
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scb->next = scb_base;
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scb->refcnt = 1;
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scb->refcnt = 1;
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scb->debug_p = 0;
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scb->debug_p = 0;
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scb->async_state = 0;
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scb->async_state = 0;
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scb->async_handler = NULL;
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scb->async_handler = NULL;
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scb->async_context = NULL;
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scb->async_context = NULL;
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scb_base = scb;
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scb_base = scb;
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|
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last_serial_opened = scb;
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last_serial_opened = scb;
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|
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return scb;
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return scb;
|
}
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}
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|
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static void
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static void
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do_serial_close (struct serial *scb, int really_close)
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do_serial_close (struct serial *scb, int really_close)
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{
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{
|
struct serial *tmp_scb;
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struct serial *tmp_scb;
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|
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last_serial_opened = NULL;
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last_serial_opened = NULL;
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|
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if (serial_logfp)
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if (serial_logfp)
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{
|
{
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fputs_unfiltered ("\nEnd of log\n", serial_logfp);
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fputs_unfiltered ("\nEnd of log\n", serial_logfp);
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serial_current_type = 0;
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serial_current_type = 0;
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|
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/* XXX - What if serial_logfp == gdb_stdout or gdb_stderr? */
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/* XXX - What if serial_logfp == gdb_stdout or gdb_stderr? */
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ui_file_delete (serial_logfp);
|
ui_file_delete (serial_logfp);
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serial_logfp = NULL;
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serial_logfp = NULL;
|
}
|
}
|
|
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/* This is bogus. It's not our fault if you pass us a bad scb...! Rob, you
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/* This is bogus. It's not our fault if you pass us a bad scb...! Rob, you
|
should fix your code instead. */
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should fix your code instead. */
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|
|
if (!scb)
|
if (!scb)
|
return;
|
return;
|
|
|
scb->refcnt--;
|
scb->refcnt--;
|
if (scb->refcnt > 0)
|
if (scb->refcnt > 0)
|
return;
|
return;
|
|
|
/* ensure that the FD has been taken out of async mode */
|
/* ensure that the FD has been taken out of async mode */
|
if (scb->async_handler != NULL)
|
if (scb->async_handler != NULL)
|
serial_async (scb, NULL, NULL);
|
serial_async (scb, NULL, NULL);
|
|
|
if (really_close)
|
if (really_close)
|
scb->ops->close (scb);
|
scb->ops->close (scb);
|
|
|
if (scb->name)
|
if (scb->name)
|
xfree (scb->name);
|
xfree (scb->name);
|
|
|
if (scb_base == scb)
|
if (scb_base == scb)
|
scb_base = scb_base->next;
|
scb_base = scb_base->next;
|
else
|
else
|
for (tmp_scb = scb_base; tmp_scb; tmp_scb = tmp_scb->next)
|
for (tmp_scb = scb_base; tmp_scb; tmp_scb = tmp_scb->next)
|
{
|
{
|
if (tmp_scb->next != scb)
|
if (tmp_scb->next != scb)
|
continue;
|
continue;
|
|
|
tmp_scb->next = tmp_scb->next->next;
|
tmp_scb->next = tmp_scb->next->next;
|
break;
|
break;
|
}
|
}
|
|
|
xfree (scb);
|
xfree (scb);
|
}
|
}
|
|
|
void
|
void
|
serial_close (struct serial *scb)
|
serial_close (struct serial *scb)
|
{
|
{
|
do_serial_close (scb, 1);
|
do_serial_close (scb, 1);
|
}
|
}
|
|
|
void
|
void
|
serial_un_fdopen (struct serial *scb)
|
serial_un_fdopen (struct serial *scb)
|
{
|
{
|
do_serial_close (scb, 0);
|
do_serial_close (scb, 0);
|
}
|
}
|
|
|
int
|
int
|
serial_readchar (struct serial *scb, int timeout)
|
serial_readchar (struct serial *scb, int timeout)
|
{
|
{
|
int ch;
|
int ch;
|
|
|
/* FIXME: cagney/1999-10-11: Don't enable this check until the ASYNC
|
/* FIXME: cagney/1999-10-11: Don't enable this check until the ASYNC
|
code is finished. */
|
code is finished. */
|
if (0 && serial_is_async_p (scb) && timeout < 0)
|
if (0 && serial_is_async_p (scb) && timeout < 0)
|
internal_error (__FILE__, __LINE__,
|
internal_error (__FILE__, __LINE__,
|
_("serial_readchar: blocking read in async mode"));
|
_("serial_readchar: blocking read in async mode"));
|
|
|
ch = scb->ops->readchar (scb, timeout);
|
ch = scb->ops->readchar (scb, timeout);
|
if (serial_logfp != NULL)
|
if (serial_logfp != NULL)
|
{
|
{
|
serial_logchar (serial_logfp, 'r', ch, timeout);
|
serial_logchar (serial_logfp, 'r', ch, timeout);
|
|
|
/* Make sure that the log file is as up-to-date as possible,
|
/* Make sure that the log file is as up-to-date as possible,
|
in case we are getting ready to dump core or something. */
|
in case we are getting ready to dump core or something. */
|
gdb_flush (serial_logfp);
|
gdb_flush (serial_logfp);
|
}
|
}
|
if (serial_debug_p (scb))
|
if (serial_debug_p (scb))
|
{
|
{
|
fprintf_unfiltered (gdb_stdlog, "[");
|
fprintf_unfiltered (gdb_stdlog, "[");
|
serial_logchar (gdb_stdlog, 'r', ch, timeout);
|
serial_logchar (gdb_stdlog, 'r', ch, timeout);
|
fprintf_unfiltered (gdb_stdlog, "]");
|
fprintf_unfiltered (gdb_stdlog, "]");
|
gdb_flush (gdb_stdlog);
|
gdb_flush (gdb_stdlog);
|
}
|
}
|
|
|
return (ch);
|
return (ch);
|
}
|
}
|
|
|
int
|
int
|
serial_write (struct serial *scb, const char *str, int len)
|
serial_write (struct serial *scb, const char *str, int len)
|
{
|
{
|
if (serial_logfp != NULL)
|
if (serial_logfp != NULL)
|
{
|
{
|
int count;
|
int count;
|
|
|
for (count = 0; count < len; count++)
|
for (count = 0; count < len; count++)
|
serial_logchar (serial_logfp, 'w', str[count] & 0xff, 0);
|
serial_logchar (serial_logfp, 'w', str[count] & 0xff, 0);
|
|
|
/* Make sure that the log file is as up-to-date as possible,
|
/* Make sure that the log file is as up-to-date as possible,
|
in case we are getting ready to dump core or something. */
|
in case we are getting ready to dump core or something. */
|
gdb_flush (serial_logfp);
|
gdb_flush (serial_logfp);
|
}
|
}
|
|
|
return (scb->ops->write (scb, str, len));
|
return (scb->ops->write (scb, str, len));
|
}
|
}
|
|
|
void
|
void
|
serial_printf (struct serial *desc, const char *format,...)
|
serial_printf (struct serial *desc, const char *format,...)
|
{
|
{
|
va_list args;
|
va_list args;
|
char *buf;
|
char *buf;
|
va_start (args, format);
|
va_start (args, format);
|
|
|
buf = xstrvprintf (format, args);
|
buf = xstrvprintf (format, args);
|
serial_write (desc, buf, strlen (buf));
|
serial_write (desc, buf, strlen (buf));
|
|
|
xfree (buf);
|
xfree (buf);
|
va_end (args);
|
va_end (args);
|
}
|
}
|
|
|
int
|
int
|
serial_drain_output (struct serial *scb)
|
serial_drain_output (struct serial *scb)
|
{
|
{
|
return scb->ops->drain_output (scb);
|
return scb->ops->drain_output (scb);
|
}
|
}
|
|
|
int
|
int
|
serial_flush_output (struct serial *scb)
|
serial_flush_output (struct serial *scb)
|
{
|
{
|
return scb->ops->flush_output (scb);
|
return scb->ops->flush_output (scb);
|
}
|
}
|
|
|
int
|
int
|
serial_flush_input (struct serial *scb)
|
serial_flush_input (struct serial *scb)
|
{
|
{
|
return scb->ops->flush_input (scb);
|
return scb->ops->flush_input (scb);
|
}
|
}
|
|
|
int
|
int
|
serial_send_break (struct serial *scb)
|
serial_send_break (struct serial *scb)
|
{
|
{
|
if (serial_logfp != NULL)
|
if (serial_logfp != NULL)
|
serial_logchar (serial_logfp, 'w', SERIAL_BREAK, 0);
|
serial_logchar (serial_logfp, 'w', SERIAL_BREAK, 0);
|
|
|
return (scb->ops->send_break (scb));
|
return (scb->ops->send_break (scb));
|
}
|
}
|
|
|
void
|
void
|
serial_raw (struct serial *scb)
|
serial_raw (struct serial *scb)
|
{
|
{
|
scb->ops->go_raw (scb);
|
scb->ops->go_raw (scb);
|
}
|
}
|
|
|
serial_ttystate
|
serial_ttystate
|
serial_get_tty_state (struct serial *scb)
|
serial_get_tty_state (struct serial *scb)
|
{
|
{
|
return scb->ops->get_tty_state (scb);
|
return scb->ops->get_tty_state (scb);
|
}
|
}
|
|
|
int
|
int
|
serial_set_tty_state (struct serial *scb, serial_ttystate ttystate)
|
serial_set_tty_state (struct serial *scb, serial_ttystate ttystate)
|
{
|
{
|
return scb->ops->set_tty_state (scb, ttystate);
|
return scb->ops->set_tty_state (scb, ttystate);
|
}
|
}
|
|
|
void
|
void
|
serial_print_tty_state (struct serial *scb,
|
serial_print_tty_state (struct serial *scb,
|
serial_ttystate ttystate,
|
serial_ttystate ttystate,
|
struct ui_file *stream)
|
struct ui_file *stream)
|
{
|
{
|
scb->ops->print_tty_state (scb, ttystate, stream);
|
scb->ops->print_tty_state (scb, ttystate, stream);
|
}
|
}
|
|
|
int
|
int
|
serial_noflush_set_tty_state (struct serial *scb,
|
serial_noflush_set_tty_state (struct serial *scb,
|
serial_ttystate new_ttystate,
|
serial_ttystate new_ttystate,
|
serial_ttystate old_ttystate)
|
serial_ttystate old_ttystate)
|
{
|
{
|
return scb->ops->noflush_set_tty_state (scb, new_ttystate, old_ttystate);
|
return scb->ops->noflush_set_tty_state (scb, new_ttystate, old_ttystate);
|
}
|
}
|
|
|
int
|
int
|
serial_setbaudrate (struct serial *scb, int rate)
|
serial_setbaudrate (struct serial *scb, int rate)
|
{
|
{
|
return scb->ops->setbaudrate (scb, rate);
|
return scb->ops->setbaudrate (scb, rate);
|
}
|
}
|
|
|
int
|
int
|
serial_setstopbits (struct serial *scb, int num)
|
serial_setstopbits (struct serial *scb, int num)
|
{
|
{
|
return scb->ops->setstopbits (scb, num);
|
return scb->ops->setstopbits (scb, num);
|
}
|
}
|
|
|
int
|
int
|
serial_can_async_p (struct serial *scb)
|
serial_can_async_p (struct serial *scb)
|
{
|
{
|
return (scb->ops->async != NULL);
|
return (scb->ops->async != NULL);
|
}
|
}
|
|
|
int
|
int
|
serial_is_async_p (struct serial *scb)
|
serial_is_async_p (struct serial *scb)
|
{
|
{
|
return (scb->ops->async != NULL) && (scb->async_handler != NULL);
|
return (scb->ops->async != NULL) && (scb->async_handler != NULL);
|
}
|
}
|
|
|
void
|
void
|
serial_async (struct serial *scb,
|
serial_async (struct serial *scb,
|
serial_event_ftype *handler,
|
serial_event_ftype *handler,
|
void *context)
|
void *context)
|
{
|
{
|
int changed = ((scb->async_handler == NULL) != (handler == NULL));
|
int changed = ((scb->async_handler == NULL) != (handler == NULL));
|
scb->async_handler = handler;
|
scb->async_handler = handler;
|
scb->async_context = context;
|
scb->async_context = context;
|
/* Only change mode if there is a need. */
|
/* Only change mode if there is a need. */
|
if (changed)
|
if (changed)
|
scb->ops->async (scb, handler != NULL);
|
scb->ops->async (scb, handler != NULL);
|
}
|
}
|
|
|
int
|
int
|
deprecated_serial_fd (struct serial *scb)
|
deprecated_serial_fd (struct serial *scb)
|
{
|
{
|
/* FIXME: should this output a warning that deprecated code is being
|
/* FIXME: should this output a warning that deprecated code is being
|
called? */
|
called? */
|
if (scb->fd < 0)
|
if (scb->fd < 0)
|
{
|
{
|
internal_error (__FILE__, __LINE__,
|
internal_error (__FILE__, __LINE__,
|
_("serial: FD not valid"));
|
_("serial: FD not valid"));
|
}
|
}
|
return scb->fd; /* sigh */
|
return scb->fd; /* sigh */
|
}
|
}
|
|
|
void
|
void
|
serial_debug (struct serial *scb, int debug_p)
|
serial_debug (struct serial *scb, int debug_p)
|
{
|
{
|
scb->debug_p = debug_p;
|
scb->debug_p = debug_p;
|
}
|
}
|
|
|
int
|
int
|
serial_debug_p (struct serial *scb)
|
serial_debug_p (struct serial *scb)
|
{
|
{
|
return scb->debug_p || global_serial_debug_p;
|
return scb->debug_p || global_serial_debug_p;
|
}
|
}
|
|
|
#ifdef USE_WIN32API
|
#ifdef USE_WIN32API
|
void
|
void
|
serial_wait_handle (struct serial *scb, HANDLE *read, HANDLE *except)
|
serial_wait_handle (struct serial *scb, HANDLE *read, HANDLE *except)
|
{
|
{
|
if (scb->ops->wait_handle)
|
if (scb->ops->wait_handle)
|
scb->ops->wait_handle (scb, read, except);
|
scb->ops->wait_handle (scb, read, except);
|
else
|
else
|
{
|
{
|
*read = (HANDLE) _get_osfhandle (scb->fd);
|
*read = (HANDLE) _get_osfhandle (scb->fd);
|
*except = NULL;
|
*except = NULL;
|
}
|
}
|
}
|
}
|
|
|
void
|
void
|
serial_done_wait_handle (struct serial *scb)
|
serial_done_wait_handle (struct serial *scb)
|
{
|
{
|
if (scb->ops->done_wait_handle)
|
if (scb->ops->done_wait_handle)
|
scb->ops->done_wait_handle (scb);
|
scb->ops->done_wait_handle (scb);
|
}
|
}
|
#endif
|
#endif
|
|
|
#if 0
|
#if 0
|
/* The connect command is #if 0 because I hadn't thought of an elegant
|
/* 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
|
way to wait for I/O on two `struct serial *'s simultaneously. Two
|
solutions came to mind:
|
solutions came to mind:
|
|
|
1) Fork, and have have one fork handle the to user direction,
|
1) Fork, and have have one fork handle the to user direction,
|
and have the other hand the to target direction. This
|
and have the other hand the to target direction. This
|
obviously won't cut it for MSDOS.
|
obviously won't cut it for MSDOS.
|
|
|
2) Use something like select. This assumes that stdin and
|
2) Use something like select. This assumes that stdin and
|
the target side can both be waited on via the same
|
the target side can both be waited on via the same
|
mechanism. This may not be true for DOS, if GDB is
|
mechanism. This may not be true for DOS, if GDB is
|
talking to the target via a TCP socket.
|
talking to the target via a TCP socket.
|
-grossman, 8 Jun 93 */
|
-grossman, 8 Jun 93 */
|
|
|
/* Connect the user directly to the remote system. This command acts just like
|
/* 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. */
|
the 'cu' or 'tip' command. Use <CR>~. or <CR>~^D to break out. */
|
|
|
static struct serial *tty_desc; /* Controlling terminal */
|
static struct serial *tty_desc; /* Controlling terminal */
|
|
|
static void
|
static void
|
cleanup_tty (serial_ttystate ttystate)
|
cleanup_tty (serial_ttystate ttystate)
|
{
|
{
|
printf_unfiltered ("\r\n[Exiting connect mode]\r\n");
|
printf_unfiltered ("\r\n[Exiting connect mode]\r\n");
|
serial_set_tty_state (tty_desc, ttystate);
|
serial_set_tty_state (tty_desc, ttystate);
|
xfree (ttystate);
|
xfree (ttystate);
|
serial_close (tty_desc);
|
serial_close (tty_desc);
|
}
|
}
|
|
|
static void
|
static void
|
connect_command (char *args, int fromtty)
|
connect_command (char *args, int fromtty)
|
{
|
{
|
int c;
|
int c;
|
char cur_esc = 0;
|
char cur_esc = 0;
|
serial_ttystate ttystate;
|
serial_ttystate ttystate;
|
struct serial *port_desc; /* TTY port */
|
struct serial *port_desc; /* TTY port */
|
|
|
dont_repeat ();
|
dont_repeat ();
|
|
|
if (args)
|
if (args)
|
fprintf_unfiltered (gdb_stderr, "This command takes no args. They have been ignored.\n");
|
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");
|
printf_unfiltered ("[Entering connect mode. Use ~. or ~^D to escape]\n");
|
|
|
tty_desc = serial_fdopen (0);
|
tty_desc = serial_fdopen (0);
|
port_desc = last_serial_opened;
|
port_desc = last_serial_opened;
|
|
|
ttystate = serial_get_tty_state (tty_desc);
|
ttystate = serial_get_tty_state (tty_desc);
|
|
|
serial_raw (tty_desc);
|
serial_raw (tty_desc);
|
serial_raw (port_desc);
|
serial_raw (port_desc);
|
|
|
make_cleanup (cleanup_tty, ttystate);
|
make_cleanup (cleanup_tty, ttystate);
|
|
|
while (1)
|
while (1)
|
{
|
{
|
int mask;
|
int mask;
|
|
|
mask = serial_wait_2 (tty_desc, port_desc, -1);
|
mask = serial_wait_2 (tty_desc, port_desc, -1);
|
|
|
if (mask & 2)
|
if (mask & 2)
|
{ /* tty input */
|
{ /* tty input */
|
char cx;
|
char cx;
|
|
|
while (1)
|
while (1)
|
{
|
{
|
c = serial_readchar (tty_desc, 0);
|
c = serial_readchar (tty_desc, 0);
|
|
|
if (c == SERIAL_TIMEOUT)
|
if (c == SERIAL_TIMEOUT)
|
break;
|
break;
|
|
|
if (c < 0)
|
if (c < 0)
|
perror_with_name (_("connect"));
|
perror_with_name (_("connect"));
|
|
|
cx = c;
|
cx = c;
|
serial_write (port_desc, &cx, 1);
|
serial_write (port_desc, &cx, 1);
|
|
|
switch (cur_esc)
|
switch (cur_esc)
|
{
|
{
|
case 0:
|
case 0:
|
if (c == '\r')
|
if (c == '\r')
|
cur_esc = c;
|
cur_esc = c;
|
break;
|
break;
|
case '\r':
|
case '\r':
|
if (c == '~')
|
if (c == '~')
|
cur_esc = c;
|
cur_esc = c;
|
else
|
else
|
cur_esc = 0;
|
cur_esc = 0;
|
break;
|
break;
|
case '~':
|
case '~':
|
if (c == '.' || c == '\004')
|
if (c == '.' || c == '\004')
|
return;
|
return;
|
else
|
else
|
cur_esc = 0;
|
cur_esc = 0;
|
}
|
}
|
}
|
}
|
}
|
}
|
|
|
if (mask & 1)
|
if (mask & 1)
|
{ /* Port input */
|
{ /* Port input */
|
char cx;
|
char cx;
|
|
|
while (1)
|
while (1)
|
{
|
{
|
c = serial_readchar (port_desc, 0);
|
c = serial_readchar (port_desc, 0);
|
|
|
if (c == SERIAL_TIMEOUT)
|
if (c == SERIAL_TIMEOUT)
|
break;
|
break;
|
|
|
if (c < 0)
|
if (c < 0)
|
perror_with_name (_("connect"));
|
perror_with_name (_("connect"));
|
|
|
cx = c;
|
cx = c;
|
|
|
serial_write (tty_desc, &cx, 1);
|
serial_write (tty_desc, &cx, 1);
|
}
|
}
|
}
|
}
|
}
|
}
|
}
|
}
|
#endif /* 0 */
|
#endif /* 0 */
|
|
|
/* Serial set/show framework. */
|
/* Serial set/show framework. */
|
|
|
static struct cmd_list_element *serial_set_cmdlist;
|
static struct cmd_list_element *serial_set_cmdlist;
|
static struct cmd_list_element *serial_show_cmdlist;
|
static struct cmd_list_element *serial_show_cmdlist;
|
|
|
static void
|
static void
|
serial_set_cmd (char *args, int from_tty)
|
serial_set_cmd (char *args, int from_tty)
|
{
|
{
|
printf_unfiltered ("\"set serial\" must be followed by the name of a command.\n");
|
printf_unfiltered ("\"set serial\" must be followed by the name of a command.\n");
|
help_list (serial_set_cmdlist, "set serial ", -1, gdb_stdout);
|
help_list (serial_set_cmdlist, "set serial ", -1, gdb_stdout);
|
}
|
}
|
|
|
static void
|
static void
|
serial_show_cmd (char *args, int from_tty)
|
serial_show_cmd (char *args, int from_tty)
|
{
|
{
|
cmd_show_list (serial_show_cmdlist, from_tty, "");
|
cmd_show_list (serial_show_cmdlist, from_tty, "");
|
}
|
}
|
|
|
|
|
void
|
void
|
_initialize_serial (void)
|
_initialize_serial (void)
|
{
|
{
|
#if 0
|
#if 0
|
add_com ("connect", class_obscure, connect_command, _("\
|
add_com ("connect", class_obscure, connect_command, _("\
|
Connect the terminal directly up to the command monitor.\n\
|
Connect the terminal directly up to the command monitor.\n\
|
Use <CR>~. or <CR>~^D to break out."));
|
Use <CR>~. or <CR>~^D to break out."));
|
#endif /* 0 */
|
#endif /* 0 */
|
|
|
add_prefix_cmd ("serial", class_maintenance, serial_set_cmd, _("\
|
add_prefix_cmd ("serial", class_maintenance, serial_set_cmd, _("\
|
Set default serial/parallel port configuration."),
|
Set default serial/parallel port configuration."),
|
&serial_set_cmdlist, "set serial ",
|
&serial_set_cmdlist, "set serial ",
|
0/*allow-unknown*/,
|
0/*allow-unknown*/,
|
&setlist);
|
&setlist);
|
|
|
add_prefix_cmd ("serial", class_maintenance, serial_show_cmd, _("\
|
add_prefix_cmd ("serial", class_maintenance, serial_show_cmd, _("\
|
Show default serial/parallel port configuration."),
|
Show default serial/parallel port configuration."),
|
&serial_show_cmdlist, "show serial ",
|
&serial_show_cmdlist, "show serial ",
|
0/*allow-unknown*/,
|
0/*allow-unknown*/,
|
&showlist);
|
&showlist);
|
|
|
add_setshow_filename_cmd ("remotelogfile", no_class, &serial_logfile, _("\
|
add_setshow_filename_cmd ("remotelogfile", no_class, &serial_logfile, _("\
|
Set filename for remote session recording."), _("\
|
Set filename for remote session recording."), _("\
|
Show filename for remote session recording."), _("\
|
Show filename for remote session recording."), _("\
|
This file is used to record the remote session for future playback\n\
|
This file is used to record the remote session for future playback\n\
|
by gdbserver."),
|
by gdbserver."),
|
NULL,
|
NULL,
|
NULL, /* FIXME: i18n: */
|
NULL, /* FIXME: i18n: */
|
&setlist, &showlist);
|
&setlist, &showlist);
|
|
|
add_setshow_enum_cmd ("remotelogbase", no_class, logbase_enums,
|
add_setshow_enum_cmd ("remotelogbase", no_class, logbase_enums,
|
&serial_logbase, _("\
|
&serial_logbase, _("\
|
Set numerical base for remote session logging"), _("\
|
Set numerical base for remote session logging"), _("\
|
Show numerical base for remote session logging"), NULL,
|
Show numerical base for remote session logging"), NULL,
|
NULL,
|
NULL,
|
NULL, /* FIXME: i18n: */
|
NULL, /* FIXME: i18n: */
|
&setlist, &showlist);
|
&setlist, &showlist);
|
|
|
add_setshow_zinteger_cmd ("serial", class_maintenance,
|
add_setshow_zinteger_cmd ("serial", class_maintenance,
|
&global_serial_debug_p, _("\
|
&global_serial_debug_p, _("\
|
Set serial debugging."), _("\
|
Set serial debugging."), _("\
|
Show serial debugging."), _("\
|
Show serial debugging."), _("\
|
When non-zero, serial port debugging is enabled."),
|
When non-zero, serial port debugging is enabled."),
|
NULL,
|
NULL,
|
NULL, /* FIXME: i18n: */
|
NULL, /* FIXME: i18n: */
|
&setdebuglist, &showdebuglist);
|
&setdebuglist, &showdebuglist);
|
}
|
}
|
|
|
