Home | History | Annotate | Line # | Download | only in common
boot.c revision 1.1 
      1 /*	$NetBSD: boot.c,v 1.1 1997/01/24 01:52:54 cgd Exp $	*/
      2 
      3 /*
      4  * Copyright (c) 1992, 1993
      5  *	The Regents of the University of California.  All rights reserved.
      6  *
      7  * This code is derived from software contributed to Berkeley by
      8  * Ralph Campbell.
      9  *
     10  * Redistribution and use in source and binary forms, with or without
     11  * modification, are permitted provided that the following conditions
     12  * are met:
     13  * 1. Redistributions of source code must retain the above copyright
     14  *    notice, this list of conditions and the following disclaimer.
     15  * 2. Redistributions in binary form must reproduce the above copyright
     16  *    notice, this list of conditions and the following disclaimer in the
     17  *    documentation and/or other materials provided with the distribution.
     18  * 3. All advertising materials mentioning features or use of this software
     19  *    must display the following acknowledgement:
     20  *	This product includes software developed by the University of
     21  *	California, Berkeley and its contributors.
     22  * 4. Neither the name of the University nor the names of its contributors
     23  *    may be used to endorse or promote products derived from this software
     24  *    without specific prior written permission.
     25  *
     26  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
     27  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     28  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
     29  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
     30  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
     31  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
     32  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
     33  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
     34  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
     35  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
     36  * SUCH DAMAGE.
     37  *
     38  *	@(#)boot.c	8.1 (Berkeley) 6/10/93
     39  */
     40 
     41 #include <lib/libsa/stand.h>
     42 #include <lib/libkern/libkern.h>
     43 
     44 #include <sys/param.h>
     45 #include <sys/exec.h>
     46 #include <sys/exec_ecoff.h>
     47 
     48 #include <machine/prom.h>
     49 
     50 #define _KERNEL
     51 #include "include/pte.h"
     52 
     53 int loadfile __P((char *, u_int64_t *));
     54 
     55 char boot_file[128];
     56 char boot_flags[128];
     57 
     58 extern char bootprog_name[], bootprog_rev[], bootprog_date[], bootprog_maker[];
     59 
     60 vm_offset_t ffp_save, ptbr_save;
     61 
     62 int debug;
     63 
     64 char *kernelnames[] = {
     65 	"netbsd",		"netbsd.gz",
     66 	"netbsd.bak",		"netbsd.bak.gz",
     67 	"netbsd.old",		"netbsd.old.gz",
     68 	"onetbsd",		"onetbsd.gz",
     69 	NULL
     70 };
     71 
     72 void
     73 main()
     74 {
     75 	char *name, **namep;
     76 	u_int64_t entry;
     77 	int win;
     78 
     79 	/* Init prom callback vector. */
     80 	init_prom_calls();
     81 
     82 	/* print a banner */
     83 	printf("\n");
     84 	printf("%s, Revision %s\n", bootprog_name, bootprog_rev);
     85 	printf("(%s, %s)\n", bootprog_maker, bootprog_date);
     86 	printf("\n");
     87 
     88 	/* switch to OSF pal code. */
     89 	OSFpal();
     90 
     91 	printf("\n");
     92 
     93 	prom_getenv(PROM_E_BOOTED_FILE, boot_file, sizeof(boot_file));
     94 	prom_getenv(PROM_E_BOOTED_OSFLAGS, boot_flags, sizeof(boot_flags));
     95 
     96 	if (boot_file[0] != 0)
     97 		(void)printf("Boot file: %s\n", boot_file);
     98 	(void)printf("Boot flags: %s\n", boot_flags);
     99 
    100 	if (boot_file[0] != '\0')
    101 		win = (loadfile(name = boot_file, &entry) == 0);
    102 	else
    103 		for (namep = kernelnames, win = 0; *namep != NULL && !win;
    104 		    namep++)
    105 			win = (loadfile(name = *namep, &entry) == 0);
    106 
    107 	printf("\n");
    108 	if (win) {
    109 		(void)printf("Entering %s at 0x%lx...\n", name, entry);
    110 		(*(void (*)())entry)(ffp_save, ptbr_save, 0);
    111 	}
    112 
    113 	(void)printf("Boot failed!  Halting...\n");
    114 	halt();
    115 }
    116