From: Philip Balister <philip@balister.org>
To: Patches and discussions about the oe-core layer
<openembedded-core@lists.openembedded.org>
Cc: Koen Kooi <koen@dominion.thruhere.net>
Subject: Re: armhf support in OpenEmbedded?
Date: Mon, 06 Feb 2012 17:44:48 -0500 [thread overview]
Message-ID: <4F3057E0.9050404@balister.org> (raw)
In-Reply-To: <2025C8A2-8B17-4F99-B4B3-3A0C8EC2C322@dominion.thruhere.net>
On 02/06/2012 04:17 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.
From what I saw, the big win for hf is for functions that return floats.
I try to avoid writing functions that return floats and use pointers to
the variable :)
Philip
next prev parent reply other threads:[~2012-02-06 22:52 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-02-06 21:01 armhf support in OpenEmbedded? Leon Woestenberg
2012-02-06 21:17 ` Mark Hatle
2012-02-06 21:17 ` Koen Kooi
2012-02-06 21:22 ` Mark Hatle
2012-02-06 21:40 ` Leon Woestenberg
2012-02-07 7:49 ` Koen Kooi
2012-02-06 22:44 ` Philip Balister [this message]
2012-02-06 21:21 ` Phil Blundell
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