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Annotation of qemu/roms/ipxe/src/hci/commands/gdbstub_cmd.c, revision 1.1

1.1     ! root        1: /*
        !             2:  * Copyright (C) 2008 Stefan Hajnoczi <[email protected]>.
        !             3:  *
        !             4:  * This program is free software; you can redistribute it and/or
        !             5:  * modify it under the terms of the GNU General Public License as
        !             6:  * published by the Free Software Foundation; either version 2 of the
        !             7:  * License, or any later version.
        !             8:  *
        !             9:  * This program is distributed in the hope that it will be useful, but
        !            10:  * WITHOUT ANY WARRANTY; without even the implied warranty of
        !            11:  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
        !            12:  * General Public License for more details.
        !            13:  *
        !            14:  * You should have received a copy of the GNU General Public License
        !            15:  * along with this program; if not, write to the Free Software
        !            16:  * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
        !            17:  */
        !            18: 
        !            19: FILE_LICENCE ( GPL2_OR_LATER );
        !            20: 
        !            21: #include <stdio.h>
        !            22: #include <errno.h>
        !            23: #include <assert.h>
        !            24: #include <getopt.h>
        !            25: #include <ipxe/command.h>
        !            26: #include <ipxe/parseopt.h>
        !            27: #include <ipxe/gdbstub.h>
        !            28: 
        !            29: /** @file
        !            30:  *
        !            31:  * GDB stub command
        !            32:  *
        !            33:  */
        !            34: 
        !            35: /**
        !            36:  * Parse GDB transport name
        !            37:  *
        !            38:  * @v text             Text
        !            39:  * @ret trans          GDB transport
        !            40:  * @ret rc             Return status code
        !            41:  */
        !            42: static int parse_gdb_transport ( const char *text,
        !            43:                                 struct gdb_transport **trans ) {
        !            44: 
        !            45:        /* Sanity check */
        !            46:        assert ( text != NULL );
        !            47: 
        !            48:        /* Find transport */
        !            49:        *trans = find_gdb_transport ( text );
        !            50:        if ( ! *trans ) {
        !            51:                printf ( "\"%s\": no such transport (is it compiled in?)\n",
        !            52:                         text );
        !            53:                return -ENOTSUP;
        !            54:        }
        !            55: 
        !            56:        return 0;
        !            57: }
        !            58: 
        !            59: /** "gdbstub" options */
        !            60: struct gdbstub_options {};
        !            61: 
        !            62: /** "gdbstub" option list */
        !            63: static struct option_descriptor gdbstub_opts[] = {};
        !            64: 
        !            65: /** "gdbstub" command descriptor */
        !            66: static struct command_descriptor gdbstub_cmd =
        !            67:        COMMAND_DESC ( struct gdbstub_options, gdbstub_opts, 1, MAX_ARGUMENTS,
        !            68:                       "<transport> [<options>...]" );
        !            69: 
        !            70: /**
        !            71:  * The "gdbstub" command
        !            72:  *
        !            73:  * @v argc             Argument count
        !            74:  * @v argv             Argument list
        !            75:  * @ret rc             Return status code
        !            76:  */
        !            77: static int gdbstub_exec ( int argc, char **argv ) {
        !            78:        struct gdbstub_options opts;
        !            79:        struct gdb_transport *trans;
        !            80:        int rc;
        !            81: 
        !            82:        /* Parse options */
        !            83:        if ( ( rc = parse_options ( argc, argv, &gdbstub_cmd, &opts ) ) != 0 )
        !            84:                return rc;
        !            85: 
        !            86:        /* Parse transport name */
        !            87:        if ( ( rc = parse_gdb_transport ( argv[optind++], &trans ) ) != 0 )
        !            88:                return rc;
        !            89: 
        !            90:        /* Initialise transport */
        !            91:        if ( trans->init ) {
        !            92:                if ( ( rc = trans->init ( argc - optind,
        !            93:                                          &argv[optind] ) ) != 0 ) {
        !            94:                        return rc;
        !            95:                }
        !            96:        }
        !            97: 
        !            98:        /* Enter GDB stub */
        !            99:        gdbstub_start ( trans );
        !           100: 
        !           101:        return 0;
        !           102: }
        !           103: 
        !           104: /** GDB stub commands */
        !           105: struct command gdbstub_commands[] __command = {
        !           106:        {
        !           107:                .name = "gdbstub",
        !           108:                .exec = gdbstub_exec,
        !           109:        },
        !           110: };

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