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      1 /* $NetBSD: bootxx.c,v 1.8 2005/12/11 12:16:20 christos Exp $ */
      2 
      3 /*
      4  * Copyright (c) 1999 Christopher G. Demetriou.  All rights reserved.
      5  *
      6  * Redistribution and use in source and binary forms, with or without
      7  * modification, are permitted provided that the following conditions
      8  * are met:
      9  * 1. Redistributions of source code must retain the above copyright
     10  *    notice, this list of conditions and the following disclaimer.
     11  * 2. Redistributions in binary form must reproduce the above copyright
     12  *    notice, this list of conditions and the following disclaimer in the
     13  *    documentation and/or other materials provided with the distribution.
     14  * 3. All advertising materials mentioning features or use of this software
     15  *    must display the following acknowledgement:
     16  *      This product includes software developed by Christopher G. Demetriou
     17  *	for the NetBSD Project.
     18  * 4. The name of the author may not be used to endorse or promote products
     19  *    derived from this software without specific prior written permission
     20  *
     21  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
     22  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
     23  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
     24  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
     25  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
     26  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
     27  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
     28  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
     29  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
     30  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     31  */
     32 
     33 /*
     34  * Copyright (c) 1992, 1993
     35  *	The Regents of the University of California.  All rights reserved.
     36  *
     37  * This code is derived from software contributed to Berkeley by
     38  * Ralph Campbell.
     39  *
     40  * Redistribution and use in source and binary forms, with or without
     41  * modification, are permitted provided that the following conditions
     42  * are met:
     43  * 1. Redistributions of source code must retain the above copyright
     44  *    notice, this list of conditions and the following disclaimer.
     45  * 2. Redistributions in binary form must reproduce the above copyright
     46  *    notice, this list of conditions and the following disclaimer in the
     47  *    documentation and/or other materials provided with the distribution.
     48  * 3. Neither the name of the University nor the names of its contributors
     49  *    may be used to endorse or promote products derived from this software
     50  *    without specific prior written permission.
     51  *
     52  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
     53  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     54  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
     55  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
     56  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
     57  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
     58  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
     59  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
     60  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
     61  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
     62  * SUCH DAMAGE.
     63  *
     64  *	@(#)boot.c	8.1 (Berkeley) 6/10/93
     65  */
     66 
     67 #include <lib/libsa/stand.h>
     68 #include <lib/libkern/libkern.h>
     69 
     70 #include <sys/param.h>
     71 #include <sys/exec.h>
     72 #include <sys/exec_ecoff.h>
     73 
     74 #include <machine/autoconf.h>
     75 #include <machine/prom.h>
     76 #include <machine/rpb.h>
     77 
     78 #include <machine/pte.h>
     79 
     80 #include "../common/common.h"
     81 
     82 void main(void);
     83 
     84 void
     85 main(void)
     86 {
     87         struct stat sb;
     88 	const char *reason;
     89 	int fd;
     90 
     91 	/* Init prom callback vector. */
     92 	init_prom_calls();
     93 
     94         putstr("\nNetBSD/alpha " NETBSD_VERS " " BOOTXX_FS_NAME " Primary Bootstrap\n");
     95 
     96         if (!booted_dev_open()) {
     97 		reason = "Can't open boot device.";
     98                 goto fail;
     99         }
    100 
    101 	fd = open("boot", 0);
    102 	if (fd == -1 || (fstat(fd, &sb) == -1)) {
    103 		reason = "Can't open /boot.";
    104 		goto failclose;
    105 	}
    106 
    107 	if (sb.st_size > SECONDARY_MAX_LOAD) {
    108 		reason = "/boot too large.";
    109 		goto failclose;
    110 	}
    111 
    112 	if (read(fd, (void*)SECONDARY_LOAD_ADDRESS, sb.st_size) != sb.st_size) {
    113 		reason = "/boot load failed.";
    114 		goto failclose;
    115 	}
    116 
    117 	putstr("Jumping to entry point...\n");
    118 	(*((void(*)(int))SECONDARY_LOAD_ADDRESS))(booted_dev_fd);
    119 
    120 	reason = "Secondary boot returned!";
    121 failclose:
    122 	booted_dev_close();
    123 fail:
    124 	putstr(reason);
    125 	putstr("\n\nPRIMARY BOOTSTRAP FAILED!\n");
    126 }
    127