Re: Building toolchain with Cirrus Logic MaverickCrunch support

[Grant Likely <glikely at gmail dot com>]

On Fri, 21 Jan 2005 13:58:04 +0000, Simon Poole
<simon.armlinux@themalago.net> wrote:
> Grant Likely wrote:
> > I used those flags with crosstool and it built a compiler that seems
> > to support crunch instructions.  ie. "arm-ep9312-linux-gnu-gcc hello.c
> > -o hello" will build an executable with crunch support.  No extra
> > flags are needed when calling the crosscompiler.
> >
> 
> I stuck these flags into our nightly crosstool build and the build
> failed with "undefined reference to `__divdf3'" (previously reported
> here?: http://gcc.gnu.org/ml/gcc/2004-06/msg01867.html)
> 
> Manfred and Grant, did you apply any extra patches to get your build
> working?  Which gcc did you use?
> 
> (crosstool-0.28-rc37, gcc-3.4.3, glibc-2.3.3, binutils-2.15)

Just as you say except I used gcc-3.4.2;
crosstool-0.28-rc37
gcc-3.4.2
glibc-2.3.3
binutils-2.15

It shouldn't matter; but I'm using 2.6.8.1 linux headers instead of 2.4.21.

No extra patches other than crosstool's patches...

Hmm, that might be it; there is a nolibfloat patch in
patches/gcc-3.4.2.  If your using gcc-3.4.3 there is no corresponding
patches directory.  I think that means that no patches at all are
being applied to gcc.  Try it again with gcc-3.4.2...

[time passes]

Okay, I just confirmed it.  One of the patches in /patches/gcc-3.4.2
is required to get it to compile, but I don't know which; left as an
exercise to the reader. :-)  (I tried the nolibfloat patch on it's
own, but that's not it.)

Cheers,
g.

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