Added a compat_osf1(8) man page.
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elric
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# $NetBSD: Makefile,v 1.32 1999/09/21 14:20:41 hubertf Exp $
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# $NetBSD: Makefile,v 1.33 1999/11/05 07:59:38 elric Exp $
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# @(#)Makefile 8.1 (Berkeley) 6/5/93
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MAN= adduser.8 compat_freebsd.8 compat_ibcs2.8 compat_linux.8 \
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compat_sunos.8 compat_svr4.8 compat_ultrix.8 diskless.8 \
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genassym.sh.8 intro.8 rc.8 sticky.8 yp.8
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compat_osf1.8 compat_sunos.8 compat_svr4.8 compat_ultrix.8 \
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diskless.8 genassym.sh.8 intro.8 rc.8 sticky.8 yp.8
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MLINKS+= compat_svr4.8 compat_sco.8
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MLINKS+= compat_svr4.8 compat_solaris.8
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MLINKS+= compat_svr4.8 compat_xenix.8
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.\" $NetBSD: compat_osf1.8,v 1.1 1999/11/05 07:59:38 elric Exp $
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.\"
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.\" Copyright (c) 1999 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 Roland C. Dowdeswell.
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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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.\" 3. All advertising materials mentioning features or use of this software
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.\" must display the following acknowledgement:
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.\" This product includes software developed by the NetBSD
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.\" Foundation, Inc. and its contributors.
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.\" 4. Neither the name of The NetBSD Foundation nor the names of its
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.\" contributors may be used to endorse or promote products derived
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.\" from this software without specific prior written permission.
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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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.Dd November 4, 1999
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.Dt COMPAT_OSF1 8
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.Os
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.Sh NAME
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.Nm compat_osf1
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.Nd setup procedure for running OSF/1 binaries
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.Sh DESCRIPTION
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.Nx
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supports running OSF/1 (a.k.a Digital Unix, a.k.a. Tru64) binaries on alpha
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systems.
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Most programs should work, including the ones that use the shared object
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libraries. Programs that make direct MACH system calls will not work.
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The OSF/1 compatibility feature is active for kernels compiled with the
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.Dv COMPAT_OSF1
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option enabled. (See
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.Xr options 4 .)
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.Pp
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To run dynamically linked programs, you will need the OSF/1 shared libraries,
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runtime linker, and certain configuration files found in /etc.
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These are installed in a "shadow root" directory called /emul/osf1.
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Any file operations done by OSF/1 programs run under
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.Nx
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will look in this directory first, and fall back to the file system proper.
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So, if an OSF/1 program opens /etc/svc.conf,
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.Nx
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will first try to open /emul/osf1/etc/svc.conf, and if that file does
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not exist it will then try /etc/svc.conf.
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Shared libraries and configuration specific to OSF/1 should be installed
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in the shadow tree.
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.Ss Setting up /emul/osf1
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There are many methods of populating /emul/osf1 with the appropriate
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files, but the two easiest are:
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.Pp
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If you have access to an OSF/1 machine, you can copy the contents of:
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.Bl -tag -width 123 -compact -offset indent
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.It /shlib
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.It /usr/shlib
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.It /etc/sia
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.El
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.Pp
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And the files
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.Bl -tag -width 123 -compact -offset indent
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.It /etc/svc.conf
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.It /emul/osf1/usr/ccs/lib/cmplrs/otabase/libots.so
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.El
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.Pp
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Or, simply NFS mount the appropriate directories under /emul/osf1.
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.Sh BUGS
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Certain values in /emul/osf1/etc/svc.conf can cause programs to fail
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with ``Bad system call''.
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.Pp
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Pathnames pointed to by symbolic links are not looked up in the
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shadow root when running a Linux executable. This is not consistent.
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.Pp
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OSF/1 executables can not handle directory offset cookies > 32 bits.
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Should such an offset occur, you will see the message "linux_getdents:
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dir offset too large for emulated program". Currently, this can only
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happen on NFS mounted filesystems, mounted from servers that return
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offsets with information in the upper 32 bits. These errors should
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rarely happen, but can be avoided by mounting this filesystem with offset
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translation enabled. See the
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.Fl X
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option to
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.Xr mount_nfs 8 .
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The
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.Fl 2
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option to
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.Xr mount_nfs 8
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will also have the desired effect, but is less preferable.
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.Sh SEE ALSO
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.Xr config 8 ,
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.Xr options 4 .
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