HEADS UP! KSE needs more attention
dfr at nlsystems.com
Mon Jun 7 09:14:29 GMT 2004
On Sunday 06 June 2004 21:48, Marcel Moolenaar wrote:
> On Sun, Jun 06, 2004 at 02:27:08PM -0600, Scott Long wrote:
> > >Doug Rabson also has basic TLS support working in perforce.
> > What platforms? My understanding was that new binutils and gcc was
> > needed for sparc64 at a minimum.
> Yes. It's i386 only and not even close to being complete. In fact,
> there has been discussions that the thread pointer on i386 needs to
> change. Whether that's the case or not, it's likely that TLS will
> complicate matters way too much to for it to ever work in 5.3.
Actually its a bit better than that. It works for most use cases right
now on i386 but would get confused on dlclose. I'll fix that before I
move it into current.
As far as the thread pointer issue goes, it turns out that our current
compiler will always evaluate %gs:0 first which is fine for libpthread.
I looked at gcc-3.4 sources and it can also be configured to always
evaluate %gs:0 (this is the default for non-linux platforms).
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