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bootxxx.c revision 1.8 
      1 /*	$NetBSD: bootxxx.c,v 1.8 2009/08/24 13:04:37 tsutsui 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 }
     98