xref: /netbsd-src/sys/arch/atari/stand/bootxxx/bootxxx.c (revision e39ef1d61eee3ccba837ee281f1e098c864487aa)
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