[SPARC] Segfault when resolving STT_GNU_IFUNC functions

[Aurelien Jarno]

Hi,

On Mon, Jun 06, 2011 at 04:51:23PM -0700, David Miller wrote:
> From: David Miller <davem@davemloft.net>
> Date: Wed, 25 May 2011 15:16:29 -0700 (PDT)
> 
> > From: Aurelien Jarno <aurelien@aurel32.net>
> > Date: Sun, 8 May 2011 20:25:09 +0200
> > 
> >> I am experiencing an issue with glibc 2.13 on sparc32 and sparc64 when
> >> multiarch is enabled. In some cases, probably depending on order the
> >> relocations are done, the resolution of STT_GNU_IFUNC functions
> >> (typically memset or memcpy) does a segmentation fault, with a
> >> backtrace looking like that:
> >  ...
> >> Help to solve this issue would be appreciated.
> > 
> > Thanks for reporting this bug, I'll try to figure out what's wrong
> > and fix it.
> 
> Can you give this patch a try?
> 

Thanks a lot for the patch, and sorry to not come back to you earlier. I
have just tried this patch, and unfortunately it doesn't seems to work
correctly: the niagara version of the function is executed even on an
ultra III system. I haven't debug it more right now, I'll do that
over the week-end and keep you updated.

-- 
Aurelien Jarno	                        GPG: 1024D/F1BCDB73
aurelien@aurel32.net                 http://www.aurel32.net