186 lines
		
	
	
		
			5.8 KiB
		
	
	
	
		
			C
		
	
	
	
	
	
			
		
		
	
	
			186 lines
		
	
	
		
			5.8 KiB
		
	
	
	
		
			C
		
	
	
	
	
	
/*	$NetBSD: sparc64.c,v 1.18 2010/01/14 16:27:49 tsutsui Exp $	*/
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/*-
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 * Copyright (c) 2002 The NetBSD Foundation, Inc.
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 * All rights reserved.
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 *
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 * This code is derived from software contributed to The NetBSD Foundation
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 * by Luke Mewburn of Wasabi Systems.
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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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 *
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 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
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 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
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 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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 * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
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 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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 * POSSIBILITY OF SUCH DAMAGE.
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 */
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/*
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 * Copyright (c) 2002 Matthew R. Green
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 * 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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 *
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 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
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 * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
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 * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
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 * 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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#if HAVE_NBTOOL_CONFIG_H
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#include "nbtool_config.h"
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#endif
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#include <sys/cdefs.h>
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#if !defined(__lint)
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__RCSID("$NetBSD: sparc64.c,v 1.18 2010/01/14 16:27:49 tsutsui Exp $");
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#endif	/* !__lint */
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#include <sys/param.h>
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#include <assert.h>
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#include <err.h>
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#include <stddef.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <unistd.h>
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#include "installboot.h"
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static int sparc64_clearboot(ib_params *);
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static int sparc64_setboot(ib_params *);
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struct ib_mach ib_mach_sparc64 =
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	{ "sparc64", sparc64_setboot, sparc64_clearboot, no_editboot, 0};
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static int
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sparc64_clearboot(ib_params *params)
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{
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	char	bb[SPARC64_BOOT_BLOCK_MAX_SIZE];
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	ssize_t	rv;
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	assert(params != NULL);
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	assert(params->fsfd != -1);
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	assert(params->filesystem != NULL);
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	if (params->flags & (IB_STAGE1START | IB_STAGE2START)) {
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		warnx("`-b bno' and `-B bno' are not supported for %s",
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		    params->machine->name);
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		return (0);
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	}
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	/* first check that it _could_ exist here */
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	rv = pread(params->fsfd, &bb, sizeof(bb), SPARC64_BOOT_BLOCK_OFFSET);
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	if (rv == -1) {
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		warn("Reading `%s'", params->filesystem);
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		return (0);
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	} else if (rv != sizeof(bb)) {
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		warnx("Reading `%s': short read", params->filesystem);
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		return (0);
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	}
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	/* now clear it out to nothing */
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	memset(&bb, 0, sizeof(bb));
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	if (params->flags & IB_VERBOSE)
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		printf("%slearing boot block\n",
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		    (params->flags & IB_NOWRITE) ? "Not c" : "C");
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	if (params->flags & IB_NOWRITE)
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		return (1);
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	rv = pwrite(params->fsfd, &bb, sizeof(bb), SPARC64_BOOT_BLOCK_OFFSET);
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	if (rv == -1) {
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		warn("Writing `%s'", params->filesystem);
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		return (0);
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	} else if (rv != sizeof(bb)) {
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		warnx("Writing `%s': short write", params->filesystem);
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		return (0);
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	}
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	return (1);
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}
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static int
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sparc64_setboot(ib_params *params)
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{
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	char		bb[SPARC64_BOOT_BLOCK_MAX_SIZE];
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	int		retval;
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	ssize_t		rv;
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	assert(params != NULL);
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	assert(params->fsfd != -1);
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	assert(params->filesystem != NULL);
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	assert(params->s1fd != -1);
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	assert(params->stage1 != NULL);
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	retval = 0;
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	if (params->flags & (IB_STAGE1START | IB_STAGE2START)) {
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		warnx("`-b bno' and `-B bno' are not supported for %s",
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		    params->machine->name);
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		goto done;
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	}
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	memset(&bb, 0, SPARC64_BOOT_BLOCK_MAX_SIZE);
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	rv = read(params->s1fd, &bb, sizeof(bb));
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	if (rv == -1) {
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		warn("Reading `%s'", params->stage1);
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		goto done;
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	}
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	if (params->flags & IB_VERBOSE) {
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		printf("Bootstrap start sector: %u\n",
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		    SPARC64_BOOT_BLOCK_OFFSET / SPARC64_BOOT_BLOCK_BLOCKSIZE);
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		printf("Bootstrap byte count:   %u\n", (unsigned)rv);
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		printf("%sriting bootstrap\n",
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		    (params->flags & IB_NOWRITE) ? "Not w" : "W");
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	}
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	if (params->flags & IB_NOWRITE) {
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		retval = 1;
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		goto done;
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	}
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	rv = pwrite(params->fsfd, &bb, SPARC64_BOOT_BLOCK_MAX_SIZE,
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	    SPARC64_BOOT_BLOCK_OFFSET);
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	if (rv == -1) {
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		warn("Writing `%s'", params->filesystem);
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		goto done;
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	} else if (rv != SPARC64_BOOT_BLOCK_MAX_SIZE) {
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		warnx("Writing `%s': short write", params->filesystem);
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		goto done;
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	} else
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		retval = 1;
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 done:
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	return (retval);
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}
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