[Buildroot] Xtensa in the autobuilders, first build failures
Thomas Petazzoni
thomas.petazzoni at free-electrons.com
Mon Nov 19 22:46:01 UTC 2012
Dear Chris Zankel,
On Mon, 19 Nov 2012 13:45:50 -0800, Chris Zankel wrote:
> However, I noticed that it was not the most recent version where I
> incorporated suggestions from Arnout, so will provide a small patch on
> top of it.
Ah, sorry, my bad. Don't hesitate to send a follow-up patch that fixes
the remaining problems.
> > * Failure to build gdbserver for the target, and gdb for the target as
> > well, both for the same reason: PTRACE_GETXTREGS and
> > PTRACE_SETXTREGS are not defined by the kernel headers apparently.
> > I'm not sure if they are just missing from the kernel headers, of
> > the ptrace support is missing in the kernel. See:
> >
> > http://autobuild.buildroot.org/results/1d2f307b2aa59bebca3bcb9ea854839f4b1d14fb/build-end.log
> > http://autobuild.buildroot.org/results/ec58e302030b8f72b19e9bada16dabb076c60261/build-end.log
> Yes, I do have a patch for gdb. There are actually two ways to fix it,
> either in uClibc or gdb. I'm also working with Tensilica to get those
> changes upstream, so I have to avoid providing additional patches.
Great!
> > It would be nice if you could have a look at this.
> >
> > * Xtensa apparently does not have libffi support. However, it is quite
> > a bit of work to get libffi support, so maybe we should just mark
> > libffi as not available on Xtensa (which is quite annoying because
> > libffi is a dependency for a huge number of packages, but we have
> > the same problem with other architectures as well). See:
> >
> > http://autobuild.buildroot.org/results/e097c27d38e49d4bf4e07f95c52e995709c08aa8/build-end.log
> Thanks, I will look into it.
Adding support for one architecture in libffi is not very simple, so if
you don't need it for your own projects, I don't think you'll have the
energy to work on this.
> > Besides those issues, I'm just reminding you that we are still very
> > interested in having a Qemu Xtensa configuration to be able to run the
> > Xtensa systems we generate with Buildroot.
> I'm juggling between kernel, uClibc, and buildroot, so, please allow me
> some more time.
Sure, no problem!
> Regarding patches, should I send them to you and cc buildroot, or only
> to the mailing list? What's the best path to get them looked at and
> integrated into the tree?
Just send them to the list. You can Cc: me as well if you want, but I'm
basically reading everything that goes on the Buildroot list, so I
should catch them even if you don't Cc: me.
Thanks again!
Thomas
--
Thomas Petazzoni, Free Electrons
Kernel, drivers, real-time and embedded Linux
development, consulting, training and support.
http://free-electrons.com
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