[Buildroot] Help to fix Microblaze issues in Buildroot

[Thomas Petazzoni <thomas.petazzoni@free-electrons.com>]

Dear Alvaro Gamez,

On Wed, 20 Nov 2013 11:36:00 +0100, Alvaro Gamez wrote:

> Now that I take the time to revisit Xilinx' website, I think maybe
> we're doing something wrong...
> 
> Old Xilinx git repository,
> http://git.xilinx.com/?p=microblaze-gnu.git;a=tree;f=binaries now
> redirect to github: https://github.com/xilinx and seems to be quite
> up to date with upstream gcc.

These repositories are exactly the repositories that Spenser patches
are using for the internal toolchain backend.

See:

  http://patchwork.ozlabs.org/patch/291045/ (binutils)
  http://patchwork.ozlabs.org/patch/291046/ (gcc)
  http://patchwork.ozlabs.org/patch/291047/ (glibc)
  http://patchwork.ozlabs.org/patch/291048/ (gdb)

> There seems to be also a later version of GNU Tools available at
> http://www.xilinx.com/guest_resources/gnu/
> 
>    - GNU Tools for MicroBlaze (gcc 4.6.4, gdb 7.6.0, binutils 2.23.2,
>    newlib 1.19, eglibc-2.18) -
> mb_gnu_20131023.tar.gz<http://www.xilinx.com/guest_resources/member/mb_gnu/mb_gnu_20131023.tar.gz>
> 
> I don't know how up to date are these downloads, but it may be worth
> a try? Although if we're going ahead with Spenser's patches maybe we
> can/(want to?) avoid Xilinx altogether?

We are not avoiding Xilinx altogether at all, please look at Spenser
patches.

*However* the tarballs you're pointing at at
http://www.xilinx.com/guest_resources/gnu/ look interesting for
pre-built external toolchains. I'm currently downloading "GNU Tools for
MicroBlaze (gcc 4.6.4, gdb 7.6.0, binutils 2.23.2, newlib 1.19,
eglibc-2.18)", and I'll have a look at what it is exactly.

Thanks!

Thomas
-- 
Thomas Petazzoni, CTO, Free Electrons
Embedded Linux, Kernel and Android engineering
http://free-electrons.com