[Mesa3d-dev] glX TLS disabled by default?

Mark Kettenis mark.kettenis at xs4all.nl
Mon Nov 9 08:18:02 PST 2009

> From: Adam Jackson <ajax at nwnk.net>
> Date: Mon, 09 Nov 2009 10:51:13 -0500
> On Sat, 2009-11-07 at 16:29 -0800, Ian Romanick wrote:
> > tom fogal wrote:
> > > Is there any reason TLS for glX is disabled by default?  Most systems
> > > support TLS these days, do they not?  Further, I'm not sure if this is
> > > shared but my opinion is that the default configurations should cater
> > > to the common case.
> >=20
> > I vaguely recall there being some interaction with the X server.  If
> > Mesa is built for TLS, then the X server must also be built for TLS.  If
> > a non-TLS X server loads a TLS Mesa driver, it will fail with unresolved
> > symbols.
> There's no intrinsic reason that the GLX loader couldn't support both, I
> suppose, but it would be kind of lame.  There's still an interaction
> between TLS and selinux that prevents me from shipping it, but I'm sure
> that's fixable.
> Mesa does attempt to be buildable for more systems than the X server
> though.  I don't know if (for example) OpenVMS has sensible TLS support.

Is the TLS you're talking about here an abreviation for Thread Local
Storage?  If so then even OpenBSD doesn't have (sensible) support for

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