From owner-freebsd-emulation@FreeBSD.ORG  Thu Jul 27 21:08:42 2006
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From: Tijl Coosemans <tijl@ulyssis.org>
To: freebsd-emulation@freebsd.org
Date: Thu, 27 Jul 2006 23:08:22 +0200
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Cc: Daniel Eischen <deischen@freebsd.org>, freebsd-hackers@freebsd.org,
	Michael Nottebrock <lofi@freebsd.org>, John Baldwin <jhb@freebsd.org>
Subject: Re: WINE vs. FreeBSD
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On Thursday 27 July 2006 17:21, John Baldwin wrote:
> On Monday 24 July 2006 21:58, Tijl Coosemans wrote:
> > However, Wine/Windows uses %fs for TLS and it appears that the
> > FreeBSD kernel doesn't preserve it. It always ends up pointing to
> > GUDATA_SEL.
>
> The kernel should preserve %fs across syscalls, traps, and faults.=20
> Can you point to a specific case where %fs is not preserved?  It
> sounds like %fs is never set to a value in Wine.

Yes, it was a combination of compiler optimizations and an inline=20
assembly block missing __volatile__.


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