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To: Stephen Hocking <sysseh@workcover.qld.gov.au>
cc: current@freebsd.org
Subject: Re: Linux WABI on FreeBSD-current? 
In-reply-to: Your message of "Thu, 18 Sep 1997 16:57:27 +1000."
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Date: Thu, 18 Sep 1997 20:23:06 +0930
From: Mike Smith <mike@smith.net.au>
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> 
> 	Has anybody tried to run Linux WABI under FreeBSD-current? I'm 
> assuming a kernel with all the USER GDT stuff compiled in of course.

Yes.

Oh, you mean "did it work?", no.

There is one basic problem; the i386_modify_ldt() Linux system call
isn't emulated due to the current implementation of its counterparts
under FreeBSD.  (The code in question uses copyin/copyout to access 
call arguments.)

If you were to take a stab at this (I can provide details on the Linux 
call interface if you don't have them already), I *think* that much of 
the rest of it would be quite happy.  I know you have some x86 
experience, and at least a little time on your hands, so this would be 
greatly appreciated!

mike