On 04/23/2012 03:41 AM, Brendan Conoboy wrote:
> On 04/22/2012 07:34 PM, Chris Tyler wrote:
>> > What are some examples of these?
> First is jemalloc which now has a not-entirely satisfactory patch in
> place. The one provoking this email is openmpi. It's wanting, but
> missing, dmb, ldrex{,d}, strex{,d}. There are others. Basically when
> you see a package working on armv7hl but failing on armv5tel there's a
> good chance it's due to missing instructions.
This is s bug in jemalloc. It should just use the gcc builtins.
If you want I'll provide a pach.
Andrew.
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