[U-Boot-Users] ARM soft float

Robert Schwebel robert at schwebel.de
Wed Feb 25 07:35:40 CET 2004


Bcc: 
Subject: Re: [U-Boot-Users] Where can I find a libgcc.a with software FP.
Reply-To: 
In-Reply-To: <Pine.LNX.4.56.0402241740180.787 at mag.sysgo.com>

Hi, 

On Tue, Feb 24, 2004 at 05:53:39PM +0100, Marius Groeger wrote:
> In practice, however, I have not seen this kind of optimising as of
> yet. Maybe on ARM there is no gain in performance. Unless there is a
> proper (read: for all ARM architectures, and working like we know it
> from powerpc-linux) -msoft-float patch for GCC 3, I'm inclined to just
> (carefully) drop -msoft-float from *boot.

How do you handle the ARM variants which have a hardware FPU then? I
didn't work with a cpu which has one yet, but there are some out there.

> I'm curious about Robert Schwebel's assessment of this issue, since I
> know he's been workin on this.

We should probably discuss that on crossgcc as there are others like
Benedikt Spranger, Marc Kleine-Budde and Dan Kegel, who may give better
comments on this than me, I didn't have time to investigate the problem
further than trying Nico's patch and integrate it into PTXdist. 

Robert
-- 
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