NetBSD/sys/arch/pmax/stand/smallnet/smallnet.c

120 lines
4.0 KiB
C

/* $NetBSD: smallnet.c,v 1.1 1999/05/13 08:38:05 simonb Exp $ */
/*-
* Copyright (c) 1999 The NetBSD Foundation, Inc.
* All rights reserved.
*
* This code is derived from software contributed to The NetBSD Foundation
* by Simon Burge.
*
* 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 NetBSD
* Foundation, Inc. and its contributors.
* 4. Neither the name of The NetBSD Foundation 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 NETBSD FOUNDATION, INC. 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 FOUNDATION 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.
*/
#include <stand.h>
#include <sys/param.h>
#include <sys/exec_elf.h>
#include <machine/dec_prom.h>
#include <lib/libz/zlib.h>
#include <lib/libkern/libkern.h>
#include "common.h"
#include "bootinfo.h"
typedef void (*entrypt) __P((int, char **, int, const void *));
int main __P((int, char **));
/*
* These variables and array will be patched to contain a kernel image
* and some information about the kernel.
*/
int maxkernel_size = KERNELSIZE;
entrypt kernel_entry = 0 /* (entrypt)0x80030000 */ /* XXX XXX XXX */;
u_long kernel_loadaddr = 0 /* 0x80030000 */ /* XXX XXX XXX */;
int kernel_size = 0 /* 387321 */ /* XXX XXX XXX */;
char kernel_image[KERNELSIZE] = "|This is the kernel image!\n";
/*
* This gets arguments from the PROM, calls other routines to open
* and load the secondary boot loader called boot, and then transfers
* execution to that program.
*
* Argv[0] should be something like "rz(0,0,0)netbsd" on a DECstation 3100.
* Argv[0,1] should be something like "boot 5/rz0/netbsd" on a DECstation 5000.
* The argument "-a" means netbsd should do an automatic reboot.
*/
int
main(argc, argv)
int argc;
char **argv;
{
int ret;
char *name;
uLongf destlen;
struct btinfo_bootpath bi_bpath;
printf("NetBSD/pmax " NETBSD_VERS " " BOOT_TYPE_NAME
" Bootstrap, Revision %s\n", bootprog_rev);
printf("(%s, %s)\n", bootprog_maker, bootprog_date);
/* initialise bootinfo structure early */
bi_init(BOOTINFO_ADDR);
/* check for DS5000 boot */
if (strcmp(argv[0], "boot") == 0) {
argc--;
argv++;
}
name = *argv;
strncpy(bi_bpath.bootpath, name, BTINFO_BOOTPATH_LEN);
bi_add(&bi_bpath, BTINFO_BOOTPATH, sizeof(bi_bpath));
destlen = RELOC - kernel_loadaddr;
printf("\n");
printf("Decompressing %d bytes to 0x%lx\n", kernel_size,
kernel_loadaddr);
ret = uncompress((Bytef *)kernel_loadaddr, &destlen, kernel_image,
kernel_size);
if (ret != Z_OK) {
printf("Error decompressing kernel\n");
printf("libz error %d\n", ret);
return (1);
}
if (callv == &callvec)
kernel_entry(argc, argv, 0, 0);
else
kernel_entry(argc, argv, DEC_PROM_MAGIC, callv);
return (1);
}