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From: "Dave Korn" <dave DOT korn AT artimi DOT com>
To: <cygwin AT cygwin DOT com>
Subject: RE: loading of wsock32 disturbs FPU
Date: Wed, 2 Mar 2005 17:25:23 -0000
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In-Reply-To: <20050302163239.GA21977@trixie.casa.cgf.cx>
Message-ID: <SERRANOY1SWoBDyseVw0000004f@SERRANO.CAM.ARTIMI.COM>
X-OriginalArrivalTime: 02 Mar 2005 17:25:24.0338 (UTC) FILETIME=[D189ED20:01C51F4C]

----Original Message----
>From: Christopher Faylor
>Sent: 02 March 2005 16:33

> On Wed, Mar 02, 2005 at 03:37:42PM +0100, Corinna Vinschen wrote:
>> On Mar  2 15:31, Corinna Vinschen wrote:
>>> On Mar 2 13:33, Dave Korn wrote:
>>>> Hm.  We probably need to put a finit instruction into the autoload code
>>>> somewhere.  wsock_init () looks like just the place......  now if I
>>>> just persuade the CVS code to build without a SIG11 (grmbl grmbl....)
>>> 
>>> Hmm?  -v please.
>> 
>> I just added an finit call to wsock_init and it seems to work fine.
>> 
>> Are there any non-FPU CPUs >= i386 out there which would choke on this
>> machine instruction?  I guess not, but I'm not exactly fluent in ix86
>> history...
> 
> I mentioned to Corinna on irc that I don't think that just calling finit
> is the right way to handle this.  What if someone had already set the
> precision as they liked?  Then loading winsock would reset it.

  .... as indeed is what already happens anyway....

  But yeh, I guess saving-and-restoring fpu mode is the _really_ correct
fix.  That's a bit awkward because we don't have a convenient
pre-LoadLibrary init entrypoint in the autoload stuff, assuming I have
understood the code correctly.

    cheers,
      DaveK
-- 
Can't think of a witty .sigline today....


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