[Buildroot] Help to fix Microblaze issues in Buildroot

Thomas Petazzoni thomas.petazzoni at free-electrons.com
Wed Nov 20 14:09:20 UTC 2013

Dear Alvaro Gamez,

On Wed, 20 Nov 2013 14:56:17 +0100, Alvaro Gamez wrote:

> The bad news is that Spenser's patches require some work. Most of it
> is easy and I've already done it myself, I can resubmit these patches
> with the little changes I made to have it fully working.

Did you realize that Spenser patches apply on top of the patches from
Mischa Jonker?

> However, there's a detail that affects other buildroot parts.
>  gcc.mk file requires the source code to be downloaded as a .tar.bz2
> file.
> However, the new github helper is only able to download .tar.gz
> files. I don't think this is due to the new github helper but to
> github itself, that only provides gziped versions of its files.
> gcc.mk defines HOST_GCC_EXTRACT_CMDS as:
>         $(BZCAT) $(DL_DIR)/$(GCC_SOURCE) | \
>                 $(TAR) $(TAR_STRIP_COMPONENTS)=1 -C $(@D) \
>                 --exclude='libjava/*' \
>                 --exclude='libgo/*' \
>                 --exclude='gcc/testsuite/*' \
>                 --exclude='libstdc++-v3/testsuite/*' \
>                 $(TAR_OPTIONS) -
>         mkdir -p $(@D)/libstdc++-v3/testsuite/
>         echo "all:" > $(@D)/libstdc++-v3/testsuite/Makefile.in
>         echo "install:" >> $(@D)/libstdc++-v3/testsuite/Makefile.in
> So... now I have the question:
> Is it necessary to manually invoke bzcat? Why don't we let tar deal
> with the matter of deciding which uncompresser to use, since it now
> by defaults can detect it without the need to pass any 'z' or 'j'
> parameter?

For example, this specific problem is solved by Mischa Jonker
patches. See http://patchwork.ozlabs.org/patch/290981/.

See also the cover letter from Spenser at
which explains what are the dependencies of his patch series.

Which other problems have you seen?

Thomas Petazzoni, CTO, Free Electrons
Embedded Linux, Kernel and Android engineering

More information about the buildroot mailing list