On 2/6/12 3:17 PM, Koen Kooi wrote:
Op 6 feb. 2012, om 22:01 heeft Leon Woestenberg het volgende geschreven:
Hello,
do we already have support for the ARM "armhf" ABI in OpenEmbedded? (A quick
search on the ML didn't get me hits).
Basically,"armhf" is built with -mfloat-abi=hard, and tuned for armv7-a CPUs.
Yes, we've had it for ages in OE-classic and Marks tune overhaul made it easy
to use in OE-core as well. Also note that armhf has practically no adavantage
over softfp in real world applications. The only things getting a decent
speedup in proper benchmarks was povray.
I strongly discourage people from using it. If you don't care about ABI
compatibility it might be a few cycles faster.. but it does limit your ability
to draw from existing EABI software. (Be it commercial or open source.)
(And yes, I realize this is a minor concern for most embedded systems.. but it
is an issue.)
--Mark
regards,
Koen
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