[yocto] [PATCH 1/1] beagleboard: enable hard floating point abi

Darren Hart dvhart at linux.intel.com
Tue Aug 23 06:31:45 PDT 2011



On 08/23/2011 05:38 AM, Koen Kooi wrote:
> 
> Op 20 aug. 2011, om 00:23 heeft Darren Hart het volgende geschreven:
> 
>> Fixes [YOCTO #1203]
>> 
>> Using the hard floating point abi is incompatible with some binary
>> libaries and 3D support for the Beagleboard. As we do not provide
>> these in poky and meta-yocto, we can take advantage of the hard
>> floating point abi.
> 
> What advantage are you talking about? So far everyone has been unable
> to provide real-world numbers[1] that show hardfp making a difference
> compared to a properly configured softfp. The numbers debian and
> meego are showing are comparing it against completely vfpless builds,


That's good reasoning to stick with softfp+neon. Unfortunately I can't
find the mail threads that first got me looking into adding hardfp
support. As I said, I'm not sold on the idea, but it was requested so I
looked into how to address it.

If nobody comes forward saying they would really like to have this, I'm
going to modify the patch series to disable hardfp by default, but leave
the infrastructure in place so people can enable if they like.

-- 
Darren Hart
Intel Open Source Technology Center
Yocto Project - Linux Kernel



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