how to make toolchain support VFP instead of FPA?
Wu Mingqiao
mingqiao.wu@gmail.com
Wed Sep 15 04:11:00 GMT 2004
Thanks very much.
I am originally going to report after successful building.
Unfortunately, I encountered an error which has not been overcome up
to now.
The error is described below:
When building glibc/sysdeps/generic/setfpucw.c with
arm-iwmmxt-linux-gnu-gcc, it reported "selected processor does not
support 'rfs r2' ". I checked the source files and found it depends on
sysdeps/arm/fpu_control.h. The 'rfs' is FPA instruction. I wonder
why it still uses FPA instruction after I have patched the following
softfloat.patch.
On Mon, 13 Sep 2004 21:27:05 -0700, Dan Kegel <dank@kegel.com> wrote:
> Wu Mingqiao wrote:
> > I am trying to use crosstool-0.28-rc34 to build toolchain for
> > arm-iwmmxt, with gcc-3.4.0 and glibc-2.3.2. I want the toolchain to
> > support VFP architecture instead of FPA. ...
>
> You may want to apply the patch
> http://www.andric.com/cross/patches/gcc-3.4.0-arm-softfloat.patch.bz2
>
> I don't include it in crosstool because it's a new feature that has
> not yet settled down, and crosstool is supposed to only include
> stable bugfixes, not new features.
> - Dan
>
> --
> My technical stuff: http://kegel.com
> My politics: see http://www.misleader.org for examples of why I'm for regime change
>
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