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Re: crosstool-0.40 preview


On Sun, Feb 19, 2006 at 09:56:11AM -0800, Dan Kegel wrote:
> On 2/19/06, Robert Schwebel <robert@schwebel.de> wrote:
> > On Sun, Feb 19, 2006 at 07:13:39AM -0800, Dan Kegel wrote:
> > > seems a bit extreme -- it says it forces vfp always. That doesn't
> > > seem like the kind of patch upstream gcc would accept.
> >
> > The problem is that you can't mix vfp and fpa. U-Boot doesn't add
> > -msoft-float to the command line, so if you want to have a toolchain
> > which is able to build u-boot and the Linux kernel and the userland you
> > need one which does always vfp (in case you want to have vfp at all).
> 
> Alternately, couldn't you fix u-boot?

I'm not sure if this is really considered to be a bug. Without the
tweak crosstool's arm toolchain generates

- vfp for -msoft-float
- fpa without flags
- hardfloat for -mhard-float

I suppose Wolfgang wouldn't be happy applying a patch which fixes
non-explicitly stated gcc behaviour. 

Robert
-- 
 Dipl.-Ing. Robert Schwebel | http://www.pengutronix.de
 Pengutronix - Linux Solutions for Science and Industry
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