333 lines
7.6 KiB
C
333 lines
7.6 KiB
C
/* Remote debugging with the XLNT Designs, Inc (XDI) NetROM.
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Copyright 1990, 1991, 1992, 1995 Free Software Foundation, Inc.
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Contributed by:
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Roger Moyers
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XLNT Designs, Inc.
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15050 Avenue of Science, Suite 106
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San Diego, CA 92128
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(619)487-9320
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roger@xlnt.com
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Adapted from work done at Cygnus Support in remote-nindy.c,
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later merged in by Stan Shebs at Cygnus.
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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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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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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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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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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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along with this program; if not, write to the Free Software
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Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
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#include "defs.h"
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#include "gdbcmd.h"
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#include "serial.h"
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#include "target.h"
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/* Default ports used to talk with the NetROM. */
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#define DEFAULT_NETROM_LOAD_PORT 1236
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#define DEFAULT_NETROM_CONTROL_PORT 1237
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static void nrom_close PARAMS ((int quitting));
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/* New commands. */
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static void nrom_passthru PARAMS ((char *, int));
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/* We talk to the NetROM over these sockets. */
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static serial_t load_desc = NULL;
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static serial_t ctrl_desc = NULL;
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static int load_port = DEFAULT_NETROM_LOAD_PORT;
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static int control_port = DEFAULT_NETROM_CONTROL_PORT;
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static char nrom_hostname[100];
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/* Forward data declaration. */
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extern struct target_ops nrom_ops;
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/* Scan input from the remote system, until STRING is found. Print chars that
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don't match. */
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static int
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expect (string)
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char *string;
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{
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char *p = string;
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int c;
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immediate_quit = 1;
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while (1)
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{
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c = SERIAL_READCHAR (ctrl_desc, 5);
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if (c == *p++)
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{
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if (*p == '\0')
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{
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immediate_quit = 0;
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return 0;
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}
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}
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else
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{
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fputc_unfiltered (c, gdb_stdout);
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p = string;
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if (c == *p)
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p++;
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}
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}
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}
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static void
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nrom_kill ()
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{
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nrom_close (0);
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}
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static serial_t
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open_socket (name, port)
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char *name;
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int port;
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{
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char sockname[100];
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serial_t desc;
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sprintf (sockname, "%s:%d", name, port);
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desc = SERIAL_OPEN (sockname);
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if (!desc)
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perror_with_name (sockname);
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return desc;
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}
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static void
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load_cleanup ()
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{
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SERIAL_CLOSE (load_desc);
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load_desc = NULL;
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}
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/* Download a file specified in ARGS to the netROM. */
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static void
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nrom_load (args, fromtty)
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char *args;
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int fromtty;
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{
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int fd, rd_amt, fsize;
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bfd *pbfd;
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asection *section;
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char *downloadstring = "download 0\n";
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struct cleanup *old_chain;
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/* Tell the netrom to get ready to download. */
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if (SERIAL_WRITE (ctrl_desc, downloadstring, strlen (downloadstring)))
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error ("nrom_load: control_send() of `%s' failed", downloadstring);
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expect ("Waiting for a connection...\n");
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load_desc = open_socket (nrom_hostname, load_port);
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old_chain = make_cleanup (load_cleanup, 0);
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pbfd = bfd_openr (args, 0);
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if (pbfd)
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{
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make_cleanup (bfd_close, pbfd);
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if (!bfd_check_format (pbfd, bfd_object))
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error ("\"%s\": not in executable format: %s",
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args, bfd_errmsg (bfd_get_error ()));
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for (section = pbfd->sections; section; section = section->next)
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{
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if (bfd_get_section_flags (pbfd, section) & SEC_ALLOC)
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{
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bfd_vma section_address;
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unsigned long section_size;
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const char *section_name;
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section_name = bfd_get_section_name (pbfd, section);
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section_address = bfd_get_section_vma (pbfd, section);
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section_size = bfd_section_size (pbfd, section);
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if (bfd_get_section_flags (pbfd, section) & SEC_LOAD)
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{
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file_ptr fptr;
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printf_filtered ("[Loading section %s at %x (%d bytes)]\n",
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section_name, section_address,
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section_size);
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fptr = 0;
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while (section_size > 0)
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{
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char buffer[1024];
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int count;
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count = min (section_size, 1024);
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bfd_get_section_contents (pbfd, section, buffer, fptr,
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count);
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SERIAL_WRITE (load_desc, buffer, count);
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section_address += count;
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fptr += count;
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section_size -= count;
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}
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}
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else /* BSS and such */
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{
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printf_filtered ("[section %s: not loading]\n",
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section_name);
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}
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}
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}
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}
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else
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error ("\"%s\": Could not open", args);
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do_cleanups (old_chain);
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}
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/* Open a connection to the remote NetROM devices. */
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static void
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nrom_open (name, from_tty)
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char *name;
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int from_tty;
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{
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int errn;
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if (!name || strchr (name, '/') || strchr (name, ':'))
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error (
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"To open a NetROM connection, you must specify the hostname\n\
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or IP address of the NetROM device you wish to use.");
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strcpy (nrom_hostname, name);
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target_preopen (from_tty);
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unpush_target (&nrom_ops);
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ctrl_desc = open_socket (nrom_hostname, control_port);
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push_target (&nrom_ops);
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if (from_tty)
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printf_filtered ("Connected to NetROM device \"%s\"\n", nrom_hostname);
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}
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/* Close out all files and local state before this target loses control. */
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static void
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nrom_close (quitting)
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int quitting;
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{
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if (load_desc)
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SERIAL_CLOSE (load_desc);
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if (ctrl_desc)
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SERIAL_CLOSE (ctrl_desc);
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}
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/* Pass arguments directly to the NetROM. */
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static void
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nrom_passthru (args, fromtty)
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char *args;
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int fromtty;
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{
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char buf[1024];
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sprintf (buf, "%s\n", args);
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if (SERIAL_WRITE (ctrl_desc, buf, strlen (buf)))
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error ("nrom_reset: control_send() of `%s'failed", args);
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}
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static void
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nrom_mourn()
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{
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unpush_target (&nrom_ops);
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generic_mourn_inferior ();
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}
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/* Define the target vector. */
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struct target_ops nrom_ops = {
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"nrom", /* to_shortname */
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"Remote XDI `NetROM' target", /* to_longname */
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"Remote debug using a NetROM over Ethernet", /* to_doc */
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nrom_open, /* to_open */
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nrom_close, /* to_close */
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NULL, /* to_attach */
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NULL, /* to_detach */
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NULL, /* to_resume */
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NULL, /* to_wait */
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NULL, /* to_fetch_registers */
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NULL, /* to_store_registers */
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NULL, /* to_prepare_to_store */
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NULL, /* to_xfer_memory */
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NULL, /* to_files_info */
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NULL, /* to_insert_breakpoint */
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NULL, /* to_remove_breakpoint */
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NULL, /* to_terminal_init */
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NULL, /* to_terminal_inferior */
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NULL, /* to_terminal_ours_for_output */
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NULL, /* to_terminal_ours */
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NULL, /* to_terminal_info */
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nrom_kill, /* to_kill */
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nrom_load, /* to_load */
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NULL, /* to_lookup_symbol */
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NULL, /* to_create_inferior */
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nrom_mourn, /* to_mourn_inferior */
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NULL, /* to_can_run */
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0, /* to_notice_signals */
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0, /* to_thread_alive */
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0, /* to_stop */
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download_stratum, /* to_stratum */
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NULL, /* to_next */
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1, /* to_has_all_memory */
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1, /* to_has_memory */
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1, /* to_has_stack */
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1, /* to_has_registers */
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0, /* to_has_execution */
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NULL, /* sections */
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NULL, /* sections_end */
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OPS_MAGIC /* to_magic */
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};
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void
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_initialize_remote_nrom ()
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{
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add_target (&nrom_ops);
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add_show_from_set (
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add_set_cmd ("nrom_load_port", no_class, var_zinteger, (char *)&load_port,
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"Set the port to use for NetROM downloads\n", &setlist),
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&showlist);
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add_show_from_set (
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add_set_cmd ("nrom_control_port", no_class, var_zinteger, (char *)&control_port,
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"Set the port to use for NetROM debugger services\n", &setlist),
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&showlist);
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add_cmd ("nrom", no_class, nrom_passthru,
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"Pass arguments as command to NetROM",
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&cmdlist);
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}
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