[Arm-netbook] RedSleeve - New ARM Linux Distro

[cnxsoft]

On 26/03/2012 15:34, Gordan Bobic wrote:
>
>> So, I am planning on using Ubuntu 12.04 Precise Pangolin ARM port.
>>
>> Just my personal response, others might want to set the bar lower.
> The problem is that there are a LOT of ARMv5 and ARMv6 devices out
> there, and targetting ARMv7 soft-float doesn't actually gain you all
> that much. Hard-float ARMv7 does gain you some extra performance, but
> only on FP-heavy applications.
>
> There is also the fact that in the tool chain used on el6 hasn't good a
> sufficiently bug-free hard-float support, so targeting ARMv7 HF isn't an
> option. The primary point of the distro was to have EL6 for ARM. I don't
> see HF as a being particularly high on the requirements list, especially
> since some of the benefit comes from NEON - which doesn't exist on some
> ARMv7 CPUs.
>
> So if you go down that route, you have to have at least three distros:
> armv5tel, armv7hl, and armv7hl+neon. That means three times the amount
> of work for what isn't going to be a great deal of benefit at the
> moment, at least while dropping armv5tel support isn't a viable option.
>
> Gordan
>
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AFAIK, Linaro has implemented code so that it detects NEON at runtime, 
so there is no need for armv7hf and armv7hf+neon distribution.