280 lines
6.8 KiB
C
280 lines
6.8 KiB
C
/* $NetBSD: boot.c,v 1.5 1995/11/30 00:59:06 jtc Exp $ */
|
|
|
|
/*-
|
|
* Copyright (c) 1982, 1986, 1990, 1993
|
|
* The Regents of the University of California. All rights reserved.
|
|
*
|
|
* Redistribution and use in source and binary forms, with or without
|
|
* modification, are permitted provided that the following conditions
|
|
* are met:
|
|
* 1. Redistributions of source code must retain the above copyright
|
|
* notice, this list of conditions and the following disclaimer.
|
|
* 2. Redistributions in binary form must reproduce the above copyright
|
|
* notice, this list of conditions and the following disclaimer in the
|
|
* documentation and/or other materials provided with the distribution.
|
|
* 3. All advertising materials mentioning features or use of this software
|
|
* must display the following acknowledgement:
|
|
* This product includes software developed by the University of
|
|
* California, Berkeley and its contributors.
|
|
* 4. Neither the name of the University nor the names of its contributors
|
|
* may be used to endorse or promote products derived from this software
|
|
* without specific prior written permission.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
|
|
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
|
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
|
|
* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
|
|
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
|
|
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
|
|
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
|
|
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
|
|
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
|
|
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
|
|
* SUCH DAMAGE.
|
|
*
|
|
* @(#)boot.c 8.1 (Berkeley) 6/10/93
|
|
*/
|
|
|
|
#ifndef lint
|
|
static char rcsid[] = "$NetBSD: boot.c,v 1.5 1995/11/30 00:59:06 jtc Exp $";
|
|
#endif /* not lint */
|
|
|
|
#include <sys/param.h>
|
|
#include <sys/reboot.h>
|
|
#include <a.out.h>
|
|
#include "stand.h"
|
|
#include "samachdep.h"
|
|
|
|
/*
|
|
* Boot program... bits in `howto' determine whether boot stops to
|
|
* ask for system name. Boot device is derived from ROM provided
|
|
* information.
|
|
*/
|
|
|
|
extern unsigned opendev;
|
|
extern int noconsole;
|
|
extern int testing;
|
|
|
|
char *ssym, *esym;
|
|
|
|
char *name;
|
|
char *names[] = {
|
|
"/netbsd", "/onetbsd", "/netbsd.old",
|
|
};
|
|
#define NUMNAMES (sizeof(names)/sizeof(char *))
|
|
#define LOADADDR ((char *)0x2000)
|
|
|
|
static int bdev, bctlr, bunit, bpart;
|
|
|
|
main()
|
|
{
|
|
int currname = 0;
|
|
int io;
|
|
|
|
cninit();
|
|
scsiinit();
|
|
|
|
printf("\n>> NetBSD BOOT pc532 [$Revision: 1.5 $]\n");
|
|
|
|
bdev = B_TYPE(bootdev);
|
|
bctlr = B_CONTROLLER(bootdev);
|
|
bunit = B_UNIT(bootdev);
|
|
bpart = B_PARTITION(bootdev);
|
|
|
|
for (;;) {
|
|
name = names[currname++];
|
|
if (currname == NUMNAMES)
|
|
currname = 0;
|
|
|
|
if (!noconsole) {
|
|
howto = 0;
|
|
getbootdev(&howto);
|
|
}
|
|
else
|
|
printf(": %s\n", name);
|
|
|
|
io = open(name, 0);
|
|
|
|
if (io >= 0) {
|
|
copyunix(howto, opendev, io);
|
|
close(io);
|
|
}
|
|
else
|
|
printf("boot: %s\n", strerror(errno));
|
|
}
|
|
}
|
|
|
|
/*ARGSUSED*/
|
|
copyunix(howto, devtype, io)
|
|
register int howto; /* boot flags */
|
|
register u_int devtype; /* boot device */
|
|
register int io;
|
|
{
|
|
struct exec x;
|
|
int i;
|
|
register char *load; /* load addr for unix */
|
|
register char *addr;
|
|
char *file;
|
|
int dev, ctlr, unit, part;
|
|
|
|
/* XXX use devtype? */
|
|
dev = B_TYPE(opendev);
|
|
ctlr = B_CONTROLLER(opendev);
|
|
unit = B_UNIT(opendev);
|
|
part = B_PARTITION(opendev);
|
|
/* get the file name part of name */
|
|
devparse(name, &i, &i, &i, &i, &i, &file);
|
|
|
|
i = read(io, (char *)&x, sizeof(x));
|
|
if (i != sizeof(x) || N_BADMAG(x)) {
|
|
printf("Bad format\n");
|
|
return;
|
|
}
|
|
addr = LOADADDR; /* Always load at LOADADDR */
|
|
load = (char *)(x.a_entry & 0x00ffff00); /* XXX make less magical? */
|
|
printf("Booting %s%d%c:%s @ 0x%x\n",
|
|
devsw[dev].dv_name, unit + (8*ctlr), 'a' + part, file, load);
|
|
|
|
if (testing) {
|
|
load = addr = alloc(2*1024*1024); /* XXX stat the file? */
|
|
if (!addr) {
|
|
printf("alloc failed\n");
|
|
exit(1);
|
|
}
|
|
}
|
|
|
|
/* Text */
|
|
printf("%d", x.a_text);
|
|
if (N_GETMAGIC(x) == ZMAGIC && lseek(io, 0, SEEK_SET) == -1)
|
|
goto shread;
|
|
if (read(io, addr, x.a_text) != x.a_text)
|
|
goto shread;
|
|
addr += x.a_text;
|
|
if (N_GETMAGIC(x) == NMAGIC)
|
|
while ((int)addr & CLOFSET)
|
|
*addr++ = 0;
|
|
/* Data */
|
|
printf("+%d", x.a_data);
|
|
if (read(io, addr, x.a_data) != x.a_data)
|
|
goto shread;
|
|
addr += x.a_data;
|
|
|
|
/* Bss */
|
|
printf("+%d", x.a_bss);
|
|
bzero( addr, x.a_bss );
|
|
addr += x.a_bss;
|
|
|
|
/* Symbols */
|
|
ssym = load + (addr - LOADADDR);
|
|
bcopy(&x.a_syms, addr, sizeof(x.a_syms));
|
|
addr += sizeof(x.a_syms);
|
|
printf(" [%d+", x.a_syms);
|
|
if (x.a_syms && read(io, addr, x.a_syms) != x.a_syms)
|
|
goto shread;
|
|
addr += x.a_syms;
|
|
|
|
/* read size of string table */
|
|
i = 0;
|
|
if (x.a_syms && read(io, &i, sizeof(int)) != sizeof(int))
|
|
goto shread;
|
|
|
|
/* read strings */
|
|
printf("%d]", i);
|
|
bcopy(&i, addr, sizeof(int));
|
|
if (i) {
|
|
i -= sizeof(int);
|
|
addr += sizeof(int);
|
|
if (read(io, addr, i) != i)
|
|
goto shread;
|
|
addr += i;
|
|
}
|
|
|
|
if (load != LOADADDR) {
|
|
bcopy(LOADADDR, load, addr - LOADADDR);
|
|
addr = load + (addr - LOADADDR);
|
|
}
|
|
#define round_to_size(x,t) \
|
|
(((int)(x) + sizeof(t) - 1) & ~(sizeof(t) - 1))
|
|
esym = (char *)round_to_size(addr - load,int);
|
|
#undef round_to_size
|
|
|
|
/* and note the end address of all this */
|
|
printf(" total=0x%x", addr);
|
|
|
|
x.a_entry &= 0xffffff;
|
|
printf(" start 0x%x\n", x.a_entry);
|
|
|
|
#ifdef DEBUG
|
|
printf("ssym=0x%x esym=0x%x\n", ssym, esym);
|
|
printf("\n\nReturn to boot...\n");
|
|
getchar();
|
|
#endif
|
|
|
|
if (!testing) {
|
|
#ifdef __GNUC__
|
|
/* do NOT change order!!
|
|
* the following are passed as args, and are in registers
|
|
* clobbered by the last two movd's!!!
|
|
*/
|
|
asm(" movd %0,r5" : : "g" (load));
|
|
asm(" movd %0,r6" : : "g" (devtype));
|
|
asm(" movd %0,r7" : : "g" (howto));
|
|
|
|
/* magic value for locore.s to look for (3253232532) */
|
|
asm(" movd %0,r3" : : "i" (0xc1e86394));
|
|
asm(" movd %0,r4" : : "g" (esym));
|
|
#endif /* __GNUC__ */
|
|
(*((int (*)()) x.a_entry))();
|
|
}
|
|
return;
|
|
shread:
|
|
printf("Short read\n");
|
|
return;
|
|
}
|
|
|
|
char line[100];
|
|
|
|
getbootdev(howto)
|
|
int *howto;
|
|
{
|
|
char c, *ptr = line;
|
|
|
|
printf("Boot: [[[%s%d%c:]%s][-abdrs]] :- ",
|
|
devsw[bdev].dv_name, bunit + (8 * bctlr), 'a'+bpart, name);
|
|
|
|
if (tgets(line)) {
|
|
while (c = *ptr) {
|
|
while (c == ' ')
|
|
c = *++ptr;
|
|
if (!c)
|
|
return;
|
|
if (c == '-')
|
|
while ((c = *++ptr) && c != ' ')
|
|
switch (c) {
|
|
case 'a':
|
|
*howto |= RB_ASKNAME;
|
|
continue;
|
|
case 'b':
|
|
*howto |= RB_HALT;
|
|
continue;
|
|
case 'd':
|
|
*howto |= RB_KDB;
|
|
continue;
|
|
case 'r':
|
|
*howto |= RB_DFLTROOT;
|
|
continue;
|
|
case 's':
|
|
*howto |= RB_SINGLE;
|
|
continue;
|
|
}
|
|
else {
|
|
name = ptr;
|
|
while ((c = *++ptr) && c != ' ');
|
|
if (c)
|
|
*ptr++ = 0;
|
|
}
|
|
}
|
|
} else
|
|
printf("\n");
|
|
}
|