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Path: utzoo!linus!decvax!decwrl!sun!guy
From: guy@sun.uucp (Guy Harris)
Newsgroups: net.unix
Subject: Re: Re: rcs blows up on suns
Message-ID: <2779@sun.uucp>
Date: Tue, 10-Sep-85 21:17:34 EDT
Article-I.D.: sun.2779
Posted: Tue Sep 10 21:17:34 1985
Date-Received: Thu, 12-Sep-85 23:15:57 EDT
References: <830@panda.UUCP> <1075@sdcsvax.UUCP> <961@sdcsla.UUCP> <967@sdcsla.UUCP> <151@maynard.UUCP>
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Organization: Sun Microsystems, Inc.
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> A minor point, but dereferencing zero only "works" on Vaxen that are
> running Berkeley Unix (don't know about USG).

Prior to the paging release of System V for the VAX (S5R2V2), S5 UNIX
suffered from the same problem as Berkeley UNIX - it allowed you to
reference location 0.  By default, it still does, but there is a linker
switch to build an executable image with no page 0.  John Bruner of Lawrence
Liverwurst Laboratory posted a set of kernel and linker changes to 4.2BSD
to make it support no-page-0 executables also.

	Guy Harris