102 lines
3.2 KiB
C
102 lines
3.2 KiB
C
/* $NetBSD: boot.c,v 1.6 1995/02/21 09:06:13 mycroft Exp $ */
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/*-
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* Copyright (c) 1982, 1986, 1990, 1993
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* The Regents of the University of California. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by the University of
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* California, Berkeley and its contributors.
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* 4. Neither the name of the University nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* @(#)boot.c 8.1 (Berkeley) 6/10/93
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*/
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#include <sys/param.h>
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#include <sys/reboot.h>
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#include <a.out.h>
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#include "stand.h"
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/*
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* Boot program... bits in `howto' determine whether boot stops to
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* ask for system name. Boot device is derived from ROM provided
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* information.
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*/
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char line[100];
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extern u_int opendev;
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extern char *lowram;
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extern int noconsole;
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extern int howto, bootdev;
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main()
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{
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int retry, type;
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printf("%s CPU\nBoot\n", getmachineid());
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#ifdef JUSTASK
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howto = RB_ASKNAME|RB_SINGLE;
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#else
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if ((howto & RB_ASKNAME) == 0) {
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type = (bootdev >> B_TYPESHIFT) & B_TYPEMASK;
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if ((unsigned)type < ndevs && devsw[type].dv_name)
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strcpy(line, "/netbsd");
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else
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howto |= RB_SINGLE|RB_ASKNAME;
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}
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#endif
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for (retry = 0;;) {
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if (!noconsole && (howto & RB_ASKNAME)) {
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printf(": ");
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gets(line);
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if (line[0] == 0) {
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strcpy(line, "/netbsd");
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printf(": %s\n", line);
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}
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} else
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printf(": %s\n", line);
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exec(line, lowram, howto);
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printf("boot: %s\n", strerror(errno));
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howto |= RB_SINGLE|RB_ASKNAME;
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}
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}
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void
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machdep_start(entry, howto, loadaddr, ssym, esym)
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char *entry;
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int howto;
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char *loadaddr;
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char *ssym, *esym;
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{
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asm("movl %0,d7" : : "m" (howto));
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asm("movl %0,d6" : : "m" (opendev));
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asm("movl %0,a5" : : "a" (loadaddr));
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asm("movl %0,a4" : : "a" (esym));
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(*((int (*)())entry))();
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}
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