sys/boot/pc32/bootasmdef.c

   1 /*
   2  * Copyright (c) 2003,2004 The DragonFly Project.  All rights reserved.
   3  *
   4  * This code is derived from software contributed to The DragonFly Project
   5  * by Matthew Dillon <dillon@backplane.com>
   6  *
   7  * Redistribution and use in source and binary forms, with or without
   8  * modification, are permitted provided that the following conditions
   9  * are met:
  10  *
  11  * 1. Redistributions of source code must retain the above copyright
  12  *    notice, this list of conditions and the following disclaimer.
  13  * 2. Redistributions in binary form must reproduce the above copyright
  14  *    notice, this list of conditions and the following disclaimer in
  15  *    the documentation and/or other materials provided with the
  16  *    distribution.
  17  * 3. Neither the name of The DragonFly Project nor the names of its
  18  *    contributors may be used to endorse or promote products derived
  19  *    from this software without specific, prior written permission.
  20  *
  21  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
  22  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
  23  * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
  24  * FOR A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE
  25  * COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
  26  * INCIDENTAL, SPECIAL, EXEMPLARY OR CONSEQUENTIAL DAMAGES (INCLUDING,
  27  * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
  28  * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
  29  * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
  30  * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
  31  * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  32  * SUCH DAMAGE.
  33  *
  34  * $DragonFly: src/sys/boot/pc32/bootasmdef.c,v 1.2 2004/07/27 19:37:15 dillon Exp $
  35  */
  36
  37 #include <stdio.h>
  38 #include <stdlib.h>
  39 #include <string.h>
  40 #include <unistd.h>
  41 #include "bootasm.h"
  42
  43 static
  44 void
  45 usage(const char *arg0, int code)
  46 {
  47     fprintf(stderr, "%s {BOOT0_ORIGIN,BOOT1_ORIGIN,MEM_BIOS_LADDR,BOOT2_VORIGIN}\n", arg0);
  48     exit(code);
  49 }
  50
  51 int
  52 main(int ac, char **av)
  53 {
  54     const char *fmt;
  55     const char *var;
  56
  57     if (ac == 1)
  58         usage(av[0], 1);
  59     if (strcmp(av[1], "-d") == 0) {
  60         if (ac == 2)
  61             usage(av[0], 1);
  62         var = av[2];
  63         fmt = "%d\n";
  64     } else {
  65         var = av[1];
  66         fmt = "0x%04x\n";
  67     }
  68
  69     if (strcmp(var, "BOOT0_ORIGIN") == 0) {
  70         printf(fmt, BOOT0_ORIGIN);
  71     } else if (strcmp(var, "BOOT1_ORIGIN") == 0) {
  72         printf(fmt, BOOT1_ORIGIN);
  73     } else if (strcmp(var, "MEM_BIOS_LADDR") == 0) {
  74         printf(fmt, MEM_BIOS_LADDR);
  75     } else if (strcmp(var, "BOOT2_VORIGIN") == 0) {
  76         printf(fmt, BOOT2_VORIGIN);
  77     } else {
  78         usage(av[0], 1);
  79     }
  80     return(0);
  81 }
  82