sys/arch/atari/stand/bootxxx/bootxxx.c

   1 /*      $NetBSD: bootxxx.c,v 1.7 2009/03/18 16:00:10 cegger Exp $       */
   2
   3 /*
   4  * Copyright (c) 2001 Leo Weppelman.
   5  * Copyright (c) 1995 Waldi Ravens.
   6  * All rights reserved.
   7  *
   8  * Redistribution and use in source and binary forms, with or without
   9  * modification, are permitted provided that the following conditions
  10  * are met:
  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 the
  15  *    documentation and/or other materials provided with the distribution.
  16  * 3. All advertising materials mentioning features or use of this software
  17  *    must display the following acknowledgement:
  18  *        This product includes software developed by Waldi Ravens.
  19  * 4. The name of the author may not be used to endorse or promote products
  20  *    derived from this software without specific prior written permission
  21  *
  22  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
  23  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
  24  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
  25  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
  26  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
  27  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  28  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  29  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  30  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
  31  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  32  */
  33
  34 #define boot_BSD        bsd_startup
  35
  36 #include <lib/libsa/stand.h>
  37 #include <atari_stand.h>
  38 #include <libkern.h>
  39 #include <sys/boot_flag.h>
  40 #include <sys/reboot.h>
  41 #include <machine/cpu.h>
  42 #include <kparamb.h>
  43 #include <libtos.h>
  44 #include <tosdefs.h>
  45
  46 int     bootxxx(void *, void *, osdsc_t *);
  47 void    boot_BSD(struct kparamb *)__attribute__((noreturn));
  48
  49 int
  50 bootxxx(void *readsector, void *disklabel, osdsc_t *od)
  51 {
  52         int             fd;
  53         char            *errmsg;
  54         extern char     end[], edata[];
  55
  56         memset(edata, 0, end - edata);
  57
  58         /* XXX: Limit should be 16MB */
  59         setheap(end, (void*)0x1000000);
  60         printf("\033v\nNetBSD/Atari tertiary bootloader "
  61                                         "($Revision: 1.8 $)\n\n");
  62
  63         if (init_dskio(readsector, disklabel, od->rootfs))
  64                 return -1;
  65
  66         sys_info(od);
  67         if (!(od->cputype & ATARI_ANYCPU)) {
  68                 printf("Unknown CPU-type.\n");
  69                 return -2;
  70         }
  71
  72         if ((fd = open(od->osname, 0)) < 0) {
  73                 printf("Cannot open kernel '%s'\n", od->osname);
  74                 return -3;
  75         }
  76
  77 #ifndef __ELF__         /* a.out */
  78         if (aout_load(fd, od, &errmsg, 1) != 0)
  79 #else
  80         if (elf_load(fd, od, &errmsg, 1) != 0)
  81 #endif
  82                 return -4;
  83
  84         boot_BSD(&od->kp);
  85         return -5;
  86
  87         /* NOTREACHED */
  88 }
  89
  90 void
  91 _rtt(void)
  92 {
  93
  94         printf("Halting...\n");
  95         for (;;)
  96                 ;
  97 }