> I've done some digging and found that xregs on Solaris/amd64 were added
> for AVX support, in Solaris 10 Update 10 apparently:
> 
> http://www.mail-archive.com/opensolaris-arc@opensolaris.org/msg01454.html
> 
> As we already found, whether or not you find ps_lgetxregsize documented
> as SPARC-specific depends on the version of the Solaris 10 man pages you
> are looking at, and in S11 it has been there from the beginning.  So
> please adapt the comments accordingly, or even leave out the x86_64
> reference altogether.

OK.

> > gdb/ChangeLog:
> >
> >         PR tdep/15420:
> >         * sol-thread.c (ps_lgetxregsize, ps_lgetxregs, ps_lsetxregs):
> >         New functions, directly copied from sparc-sol-thread.c.
> >         * sparc-sol-thread.c: Delete.
> >         * configure.ac: Remove code handling sparc-solaris-thread.c.
> >         * configure: Regenerate.
> >
> > Tested on sparc-solaris. Rainer, would you mind confirming that this
> > fixes your problem as well?
> 
> I've removed my configure hack to use sparc-sol-thread.c everywhere,
> applied your patch and rebuilt gdb: it works just fine now.

Thanks for testing your fix. Attached is what I checked in the HEAD.
I will also port the patch to gdb-7.6 as well.

-- 
Joel