Merge commit 'refs/top-bases/linux-configure-branch' into linux-configure-branch
This commit is contained in:
Brian Behlendorf
commit
f1a115a43b
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/*
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* CDDL HEADER START
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*
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* The contents of this file are subject to the terms of the
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* Common Development and Distribution License, Version 1.0 only
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* (the "License"). You may not use this file except in compliance
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* with the License.
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*
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* You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
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* or http://www.opensolaris.org/os/licensing.
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* See the License for the specific language governing permissions
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* and limitations under the License.
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*
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* When distributing Covered Code, include this CDDL HEADER in each
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* file and include the License file at usr/src/OPENSOLARIS.LICENSE.
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* If applicable, add the following below this CDDL HEADER, with the
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* fields enclosed by brackets "[]" replaced with your own identifying
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* information: Portions Copyright [yyyy] [name of copyright owner]
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*
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* CDDL HEADER END
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*/
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/*
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* Copyright 2007 Sun Microsystems, Inc. All rights reserved.
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* Use is subject to license terms.
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*/
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#include "zfs_config.h"
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#ifdef HAVE_LIBEFI
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#include_next <sys/efi_partition.h>
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#ifndef EFI_MIN_RESV_SIZE
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#define EFI_MIN_RESV_SIZE (16 * 1024)
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#endif
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#endif
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/*
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* CDDL HEADER START
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*
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* The contents of this file are subject to the terms of the
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* Common Development and Distribution License, Version 1.0 only
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* (the "License"). You may not use this file except in compliance
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* with the License.
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*
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* You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
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* or http://www.opensolaris.org/os/licensing.
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* See the License for the specific language governing permissions
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* and limitations under the License.
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*
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* When distributing Covered Code, include this CDDL HEADER in each
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* file and include the License file at usr/src/OPENSOLARIS.LICENSE.
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* If applicable, add the following below this CDDL HEADER, with the
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* fields enclosed by brackets "[]" replaced with your own identifying
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* information: Portions Copyright [yyyy] [name of copyright owner]
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*
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* CDDL HEADER END
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*/
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/*
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* Copyright 1997-1998,2002 Sun Microsystems, Inc. All rights reserved.
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* Use is subject to license terms.
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*/
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/* Copyright (c) 1984, 1986, 1987, 1988, 1989 AT&T */
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/* All Rights Reserved */
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#ifndef _SYS_VTOC_H
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#define _SYS_VTOC_H
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#include <sys/dklabel.h>
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#ifdef __cplusplus
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extern "C" {
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#endif
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/*
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* Note: the VTOC is not implemented fully, nor in the manner
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* that AT&T implements it. AT&T puts the vtoc structure
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* into a sector, usually the second sector (pdsector is first).
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*
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* Sun incorporates the tag, flag, version, and volume vtoc fields into
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* its Disk Label, which already has some vtoc-equivalent fields.
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* Upon reading the vtoc with read_vtoc(), the following exceptions
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* occur:
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* v_bootinfo [all] returned as zero
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* v_sanity returned as VTOC_SANE
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* if Disk Label was sane
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* v_sectorsz returned as 512
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* v_reserved [all] retunred as zero
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* timestamp [all] returned as zero
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*
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* See dklabel.h, read_vtoc(), and write_vtoc().
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*/
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#define V_NUMPAR NDKMAP /* The number of partitions */
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/* (from dkio.h) */
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#define VTOC_SANE 0x600DDEEE /* Indicates a sane VTOC */
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#define V_VERSION 0x01 /* layout version number */
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/*
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* Partition identification tags
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*/
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#define V_UNASSIGNED 0x00 /* unassigned partition */
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#define V_BOOT 0x01 /* Boot partition */
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#define V_ROOT 0x02 /* Root filesystem */
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#define V_SWAP 0x03 /* Swap filesystem */
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#define V_USR 0x04 /* Usr filesystem */
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#define V_BACKUP 0x05 /* full disk */
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#define V_STAND 0x06 /* Stand partition */
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#define V_VAR 0x07 /* Var partition */
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#define V_HOME 0x08 /* Home partition */
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#define V_ALTSCTR 0x09 /* Alternate sector partition */
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#define V_CACHE 0x0a /* Cache (cachefs) partition */
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#define V_RESERVED 0x0b /* SMI reserved data */
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/*
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* Partition permission flags
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*/
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#define V_UNMNT 0x01 /* Unmountable partition */
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#define V_RONLY 0x10 /* Read only */
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/*
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* error codes for reading & writing vtoc
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*/
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#define VT_ERROR (-2) /* errno supplies specific error */
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#define VT_EIO (-3) /* I/O error accessing vtoc */
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#define VT_EINVAL (-4) /* illegal value in vtoc or request */
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#define VT_ENOTSUP (-5) /* VTOC op. not supported */
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struct partition {
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ushort_t p_tag; /* ID tag of partition */
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ushort_t p_flag; /* permision flags */
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daddr_t p_start; /* start sector no of partition */
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long p_size; /* # of blocks in partition */
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};
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struct vtoc {
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unsigned long v_bootinfo[3]; /* info needed by mboot (unsupported) */
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unsigned long v_sanity; /* to verify vtoc sanity */
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unsigned long v_version; /* layout version */
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char v_volume[LEN_DKL_VVOL]; /* volume name */
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ushort_t v_sectorsz; /* sector size in bytes */
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ushort_t v_nparts; /* number of partitions */
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unsigned long v_reserved[10]; /* free space */
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struct partition v_part[V_NUMPAR]; /* partition headers */
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time_t timestamp[V_NUMPAR]; /* partition timestamp (unsupported) */
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char v_asciilabel[LEN_DKL_ASCII]; /* for compatibility */
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};
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#if defined(_SYSCALL32)
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struct partition32 {
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uint16_t p_tag; /* ID tag of partition */
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uint16_t p_flag; /* permision flags */
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daddr32_t p_start; /* start sector no of partition */
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int32_t p_size; /* # of blocks in partition */
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};
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struct vtoc32 {
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uint32_t v_bootinfo[3]; /* info needed by mboot (unsupported) */
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uint32_t v_sanity; /* to verify vtoc sanity */
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uint32_t v_version; /* layout version */
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char v_volume[LEN_DKL_VVOL]; /* volume name */
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uint16_t v_sectorsz; /* sector size in bytes */
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uint16_t v_nparts; /* number of partitions */
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uint32_t v_reserved[10]; /* free space */
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struct partition32 v_part[V_NUMPAR]; /* partition headers */
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time32_t timestamp[V_NUMPAR]; /* partition timestamp (unsupported) */
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char v_asciilabel[LEN_DKL_ASCII]; /* for compatibility */
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};
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#define vtoc32tovtoc(v32, v) \
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{ \
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int i; \
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v.v_bootinfo[0] = v32.v_bootinfo[0]; \
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v.v_bootinfo[1] = v32.v_bootinfo[1]; \
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v.v_bootinfo[2] = v32.v_bootinfo[2]; \
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v.v_sanity = v32.v_sanity; \
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v.v_version = v32.v_version; \
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bcopy(v32.v_volume, v.v_volume, LEN_DKL_VVOL); \
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v.v_sectorsz = v32.v_sectorsz; \
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v.v_nparts = v32.v_nparts; \
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v.v_version = v32.v_version; \
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for (i = 0; i < 10; i++) \
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v.v_reserved[i] = v32.v_reserved[i]; \
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for (i = 0; i < V_NUMPAR; i++) { \
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v.v_part[i].p_tag = (ushort_t)v32.v_part[i].p_tag; \
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v.v_part[i].p_flag = (ushort_t)v32.v_part[i].p_flag; \
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v.v_part[i].p_start = (daddr_t)v32.v_part[i].p_start; \
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v.v_part[i].p_size = (long)v32.v_part[i].p_size; \
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} \
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for (i = 0; i < V_NUMPAR; i++) \
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v.timestamp[i] = (time_t)v32.timestamp[i]; \
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bcopy(v32.v_asciilabel, v.v_asciilabel, LEN_DKL_ASCII); \
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}
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#define vtoctovtoc32(v, v32) \
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{ \
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int i; \
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v32.v_bootinfo[0] = v.v_bootinfo[0]; \
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v32.v_bootinfo[1] = v.v_bootinfo[1]; \
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v32.v_bootinfo[2] = v.v_bootinfo[2]; \
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v32.v_sanity = v.v_sanity; \
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v32.v_version = v.v_version; \
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bcopy(v.v_volume, v32.v_volume, LEN_DKL_VVOL); \
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v32.v_sectorsz = v.v_sectorsz; \
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v32.v_nparts = v.v_nparts; \
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v32.v_version = v.v_version; \
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for (i = 0; i < 10; i++) \
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v32.v_reserved[i] = v.v_reserved[i]; \
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for (i = 0; i < V_NUMPAR; i++) { \
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v32.v_part[i].p_tag = (ushort_t)v.v_part[i].p_tag; \
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v32.v_part[i].p_flag = (ushort_t)v.v_part[i].p_flag; \
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v32.v_part[i].p_start = (daddr32_t)v.v_part[i].p_start; \
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v32.v_part[i].p_size = (int32_t)v.v_part[i].p_size; \
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} \
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for (i = 0; i < V_NUMPAR; i++) { \
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if (v.timestamp[i] > TIME32_MAX) \
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v32.timestamp[i] = TIME32_MAX; \
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else \
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v32.timestamp[i] = (time32_t)v.timestamp[i]; \
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} \
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bcopy(v.v_asciilabel, v32.v_asciilabel, LEN_DKL_ASCII); \
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}
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#endif /* _SYSCALL32 */
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/*
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* These defines are the mode parameter for the checksum routines.
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*/
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#define CK_CHECKSUM 0 /* check checksum */
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#define CK_MAKESUM 1 /* generate checksum */
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#if defined(__STDC__)
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extern int read_vtoc(int, struct vtoc *);
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extern int write_vtoc(int, struct vtoc *);
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#else
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extern int read_vtoc();
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extern int write_vtoc();
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#endif /* __STDC__ */
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#ifdef __cplusplus
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}
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#endif
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#endif /* _SYS_VTOC_H */
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