From owner-cvs-ports  Wed Dec 18 21:01:31 1996
Return-Path: <owner-cvs-ports>
Received: (from root@localhost)
          by freefall.freebsd.org (8.8.4/8.8.4) id VAA00202
          for cvs-ports-outgoing; Wed, 18 Dec 1996 21:01:31 -0800 (PST)
Received: from bacall.lodgenet.com (bacall.lodgenet.com [205.138.147.242])
          by freefall.freebsd.org (8.8.4/8.8.4) with SMTP id VAA00197;
          Wed, 18 Dec 1996 21:01:23 -0800 (PST)
Received: (from mail@localhost) by bacall.lodgenet.com (8.6.12/8.6.12) id XAA01858; Wed, 18 Dec 1996 23:00:19 -0600
Received: from garbo.lodgenet.com(204.124.123.250) by bacall via smap (V1.3)
	id sma001856; Wed Dec 18 23:00:16 1996
Received: from jake.lodgenet.com (jake.lodgenet.com [10.0.11.30]) by garbo.lodgenet.com (8.6.12/8.6.9) with ESMTP id XAA04400; Wed, 18 Dec 1996 23:00:39 -0600
Received: from jake.lodgenet.com (localhost [127.0.0.1]) by jake.lodgenet.com (8.8.4/8.6.12) with ESMTP id XAA22101; Wed, 18 Dec 1996 23:01:11 -0600 (CST)
Message-Id: <199612190501.XAA22101@jake.lodgenet.com>
To: asami@cs.berkeley.edu (Satoshi Asami)
cc: erich@lodgenet.com, erich@freefall.freebsd.org,
        CVS-committers@freefall.freebsd.org, cvs-all@freefall.freebsd.org,
        cvs-ports@freefall.freebsd.org
Subject: Re: cvs commit: ports/games/doom - Imported sources 
In-reply-to: Your message of "Wed, 18 Dec 1996 20:45:36 PST."
             <199612190445.UAA04370@silvia.HIP.Berkeley.EDU> 
Date: Wed, 18 Dec 1996 23:01:11 -0600
From: "Eric L. Hernes" <erich@lodgenet.com>
Sender: owner-cvs-ports@FreeBSD.ORG
X-Loop: FreeBSD.org
Precedence: bulk

Satoshi Asami writes:
> * do you have the linuxulator loaded?  `pat' is a linux binary and the
> * kernel is trying to run it as a shell script.  Can I assume that
> * this will be loaded, or should I go through some contortions to
> * check modstat and call /usr/bin/linux if necessary?
>
>I see.  Yes, I would say so.  Or at least print out a message and quit 
>before it gets there.
>
>I'm not too up to full speed with the Linux emulator stuff, does it
>require special things in the kernel (I tried it and it worked on our
>machines, but I can't tell if that's generic enough)?  If not, I
>suggest you put in a modstat | grep || /usr/bin/linux pipeline.

The detection is a bit trickier :(  There is a kernel option
COMPAT_LINUX (I think) that will build the compat stuff staticly
in the kernel.  If you don't specify COMPAT_LINUX, you can
modload and still get linux emulation.  On my SMP kernel, I build
everything statically, so the `modstat |grep || /usr/bin/linux' will
fail with multiply defined symbols.  The program will just work.  On
my standard UP kernel, I use the lkm's so the pipline would be fine.
Maybe it should do something like `pat <args> || (/usr/bin/linux; pat <args>)'
to test the emulator?

>
>Satoshi

eric.