Re: [microblaze-uclinux] Toolchain sources for linux-microblaze-mmu

[John Williams <jwilliams@xxxxxxxxxxxxxx>]

Hi Greg,

Greg Steuck wrote:

> Would it be possible to make the source code bundle used for building
> the cross compiler toolchain inside of this tar ball available?
> http://developer.petalogix.com/downloads/petalinux-mmu-v0.10.tar.gz

I've very recently received an updated MMU toolchain from Xilinx (thanks 
Vasanth), which I've uploaded to the following URL:

http://developer.petalogix.com/downloads/microblaze-mmu-tools.tar.gz

It's about a 100Mb tarball, with build scripts and a README.

The main thing I've done to this (in additions to improvements from 
Xilinx since the first release) is to build gcc and glibc against the 
PetaLinux 2.6.20 kernel headers.  In the earlier release we had a built 
against 2.6.13 headers, which while not causing obvious problems was 
still not correct when targeting a 2.6.20 kernel.

I've tested this toolchain here and it seems to be working well - might 
as well get you trying the most recent version.

If you definitely want the older ones let me know and I'll try to pull 
out a source package.  It was a much less friendly build process than 
the new release, and required manual hackery to wedge it into the 
PetaLinux /tools/* heirarchy.  The new build is much cleaner in that 
respect.

This new build is also sort-of multilib'd - it builds 3 versions for the 
m, bs, and bs/m combinations, and installes them in a lib_proper 
directory.  It's not true multilib but it's a good start.

I've modified the PetaLinux MMU build scripts to pick up the correct 
version when assembling the root filesystem - this will be in the next 
MMU release package which I hope to get out as soon as next week if I can.

> The prebuilt one inside of that archive doesn't work on my glibc-2.3.6
> based i386 Linux system. If I try to run, for example, mb-linux-gcc, the
> program dies inside ld-linux.so with a division by zero
> exception. Apparently the binaries are not compatible with that version
> of glibc.

That might explain it - the workstation where I built those tools uses 
glibc 2.5... sigh...

> I will happily run a build if we could get the source and any
> scripts/documentation that would allow us to produce the
> toolchain locally.

Let me know how you go with this package.

Cheers,

John

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