Pixie Case, - Was ARMv5 and atomic operations

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2012/4/25 Nicolas Chauvet <kwizart@xxxxxxxxx>:
> 2012/4/23 Dan Horák <dan@xxxxxxxx>:
> ..
>> I'm usually skipping such packages as there is a lot of other work on
>> s390, but when I dealt with them I've used either the gcc or C++
>> primitives or the atomic_ops library. The Pixie package seems to be on
>> my list of blocked by atomic ops, there should be more, but I haven't
>> analysed all failures yet.

Hi Dan,

Been the Pixie maintainer and trying to fix the issue. I can test
anything on either my AC100 running F14 or 'soonish' a Pandaboard with
f17 armv7hl.

As Dan told me, there is a need to use a generic gcc intrinsinc code
for atomic_ops from this files:
http://pixie.svn.sourceforge.net/viewvc/pixie/trunk/src/ri/atomic.h?revision=1226&view=markup
The current generic function doesn't work and I wasn't able to sort
that out. (even if it look trivial, there is others problem than
adding a missing headers as the error sugguest)
http://arm.koji.fedoraproject.org/koji/getfile?taskID=753420&name=build.log

I wonder if It wouldn't worth to grab some equivalent ARM asm to
implement the same functions for __ARM_EABI__.

For the record, Pixie is an image renderer engine and requires massive
CPU load which worth to have optim enabled.
This is also a 'Final component' so it will not be triggered by
something that could run on a armv5 only CPU.
So my question is how can I opt-out armv5tel to force armv7l
compilation instead ?

Thx for your help.

Nicolas (kwizart)
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