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/* $OpenBSD: main.c,v 1.11 2020/05/25 15:10:18 deraadt Exp $ */
/* $NetBSD: boot.c,v 1.1 1997/04/16 20:29:17 thorpej Exp $ */
/*
* Copyright (c) 1997 Jason R. Thorpe. All rights reserved.
* Copyright (C) 1995, 1996 Wolfgang Solfrank.
* Copyright (C) 1995, 1996 TooLs GmbH.
* All rights reserved.
*
* ELF support derived from NetBSD/alpha's boot loader, written
* by Christopher G. Demetriou.
*
* 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 TooLs GmbH.
* 4. The name of TooLs GmbH may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY TOOLS GMBH ``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 TOOLS GMBH 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.
*/
/*
* First try for the boot code
*
* Input syntax is:
* [promdev[{:|,}partition]]/[filename] [flags]
*/
#define ELFSIZE 32 /* We use 32-bit ELF. */
#include <sys/param.h>
#include <sys/exec.h>
#include <sys/exec_elf.h>
#include <sys/reboot.h>
#include <sys/disklabel.h>
#include <lib/libkern/libkern.h>
#include <lib/libsa/loadfile.h>
#include <stand/boot/cmd.h>
#include <machine/cpu.h>
#include <macppc/stand/ofdev.h>
#include <macppc/stand/openfirm.h>
#include "libsa.h"
char bootdev[128];
int boothowto;
int debug;
void
get_alt_bootdev(char *, size_t, char *, size_t);
static void
prom2boot(char *dev)
{
char *cp, *lp = 0;
for (cp = dev; *cp; cp++)
if (*cp == ':')
lp = cp;
if (!lp)
lp = cp;
*lp = 0;
}
static void
chain(void (*entry)(), char *args, void *ssym, void *esym)
{
extern char end[];
int l;
#ifdef __notyet__
int machine_tag;
#endif
freeall();
/*
* Stash pointer to end of symbol table after the argument
* strings.
*/
l = strlen(args) + 1;
bcopy(&ssym, args + l, sizeof(ssym));
l += sizeof(ssym);
bcopy(&esym, args + l, sizeof(esym));
l += sizeof(esym);
#ifdef __notyet__
/*
* Tell the kernel we're an OpenFirmware system.
*/
machine_tag = POWERPC_MACHINE_OPENFIRMWARE;
bcopy(&machine_tag, args + l, sizeof(machine_tag));
l += sizeof(machine_tag);
#endif
OF_chain((void *)RELOC, end - (char *)RELOC, entry, args, l);
panic("chain");
}
/*
* XXX This limits the maximum size of the (uncompressed) bsd.rd to a
* little under 11MB.
*/
#define CLAIM_LIMIT 0x00c00000
char bootline[512];
extern char *kernelfile;
int
main(void)
{
int chosen;
/*
* Get the boot arguments from Openfirmware
*/
if ((chosen = OF_finddevice("/chosen")) == -1 ||
OF_getprop(chosen, "bootpath", bootdev, sizeof bootdev) < 0 ||
OF_getprop(chosen, "bootargs", bootline, sizeof bootline) < 0) {
printf("Invalid Openfirmware environment\n");
exit();
}
prom2boot(bootdev);
get_alt_bootdev(bootdev, sizeof(bootdev), bootline, sizeof(bootline));
if (bootline[0] != '\0')
kernelfile = bootline;
OF_claim((void *)0x00100000, CLAIM_LIMIT, 0); /* XXX */
boot(0);
return 0;
}
void
get_alt_bootdev(char *dev, size_t devsz, char *line, size_t linesz)
{
char *p;
int len;
/*
* if the kernel image specified contains a ':' it is
* [device]:[kernel], so separate the two fields.
*/
p = strrchr(line, ':');
if (p == NULL)
return;
/* user specified boot device for kernel */
len = p - line + 1; /* str len plus nil */
strlcpy(dev, line, len > devsz ? devsz : len);
strlcpy(line, p+1, linesz); /* rest of string after ':' */
}
void
devboot(dev_t dev, char *p)
{
strlcpy(p, bootdev, BOOTDEVLEN);
}
void
run_loadfile(uint64_t *marks, int howto)
{
char bootline[512]; /* Should check size? */
u_int32_t entry;
char *cp;
void *ssym, *esym;
strlcpy(bootline, opened_name, sizeof bootline);
cp = bootline + strlen(bootline);
*cp++ = ' ';
*cp = '-';
if (howto & RB_ASKNAME)
*++cp = 'a';
if (howto & RB_CONFIG)
*++cp = 'c';
if (howto & RB_SINGLE)
*++cp = 's';
if (howto & RB_KDB)
*++cp = 'd';
if (howto & RB_GOODRANDOM)
*++cp = 'R';
if (*cp == '-')
*--cp = 0;
else
*++cp = 0;
entry = marks[MARK_ENTRY];
ssym = (void *)marks[MARK_SYM];
esym = (void *)marks[MARK_END];
{
u_int32_t lastpage;
lastpage = roundup(marks[MARK_END], PAGE_SIZE);
OF_release((void*)lastpage, CLAIM_LIMIT - lastpage);
}
chain((void *)entry, bootline, ssym, esym);
_rtt();
}
int
cnspeed(dev_t dev, int sp)
{
return CONSPEED;
}
char ttyname_buf[8];
char *
ttyname(int fd)
{
snprintf(ttyname_buf, sizeof ttyname_buf, "ofc0");
return ttyname_buf;
}
dev_t
ttydev(char *name)
{
return makedev(0,0);
}
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