diff options
Diffstat (limited to 'gdb/serial.c')
| -rw-r--r-- | gdb/serial.c | 717 |
1 files changed, 0 insertions, 717 deletions
diff --git a/gdb/serial.c b/gdb/serial.c deleted file mode 100644 index 0e349f78af4..00000000000 --- a/gdb/serial.c +++ /dev/null @@ -1,717 +0,0 @@ -/* Generic serial interface routines - - Copyright 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001 - 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; - -#undef XMALLOC -#define XMALLOC(TYPE) ((TYPE*) xmalloc (sizeof (TYPE))) - - -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, "ocd") == 0) - ops = serial_interface_lookup ("ocd"); - else 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); -} |