| /* |
| * Copyright (C) 2008 Stefan Hajnoczi <stefanha@gmail.com>. |
| * |
| * 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 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., 675 Mass Ave, Cambridge, MA 02139, USA. |
| */ |
| |
| #include <stdio.h> |
| #include <getopt.h> |
| #include <gpxe/command.h> |
| #include <gpxe/gdbstub.h> |
| |
| /** @file |
| * |
| * GDB stub command |
| * |
| */ |
| |
| /** |
| * "gdbstub" command syntax message |
| * |
| * @v argv Argument list |
| */ |
| static void gdbstub_syntax ( char **argv ) { |
| printf ( "Usage:\n" |
| " %s <transport> [<options>...]\n" |
| "\n" |
| "Start remote debugging using one of the following transports:\n" |
| " serial use serial port (if compiled in)\n" |
| " udp <interface> use UDP over network interface (if compiled in)\n", |
| argv[0] ); |
| } |
| |
| /** |
| * The "gdbstub" command |
| * |
| * @v argc Argument count |
| * @v argv Argument list |
| * @ret rc Exit code |
| */ |
| static int gdbstub_exec ( int argc, char **argv ) { |
| static struct option longopts[] = { |
| { "help", 0, NULL, 'h' }, |
| { NULL, 0, NULL, 0 }, |
| }; |
| const char *trans_name; |
| struct gdb_transport *trans; |
| int c; |
| |
| /* Parse options */ |
| while ( ( c = getopt_long ( argc, argv, "h", longopts, NULL ) ) >= 0 ){ |
| switch ( c ) { |
| case 'h': |
| /* Display help text */ |
| default: |
| /* Unrecognised/invalid option */ |
| gdbstub_syntax ( argv ); |
| return 1; |
| } |
| } |
| |
| /* At least one argument */ |
| if ( optind == argc ) { |
| gdbstub_syntax ( argv ); |
| return 1; |
| } |
| |
| trans_name = argv[optind++]; |
| |
| /* Initialise transport */ |
| trans = find_gdb_transport ( trans_name ); |
| if ( !trans ) { |
| printf ( "%s: no such transport (is it compiled in?)\n", trans_name ); |
| return 1; |
| } |
| |
| if ( trans->init ) { |
| if ( trans->init ( argc - optind, &argv[optind] ) != 0 ) { |
| return 1; |
| } |
| } |
| |
| /* Enter GDB stub */ |
| gdbstub_start ( trans ); |
| return 0; |
| } |
| |
| /** GDB stub commands */ |
| struct command gdbstub_commands[] __command = { |
| { |
| .name = "gdbstub", |
| .exec = gdbstub_exec, |
| }, |
| }; |