Re: avr32 build failures in linux-next

[Guenter Roeck]

On 02/06/2016 03:57 AM, Hans-Christian Noren Egtvedt wrote:
> Around Fri 05 Feb 2016 22:02:12 +0530 or thereabout, Sudip Mukherjee wrote:
> > On Friday 05 February 2016 09:32 PM, Guenter Roeck wrote:
> > > Hi,
> > >
> > > I am getting persistent build failures with av32 in linux-next.
> >
> > me too.
>
> linux-next is Torvalds master branch?

No. We are talking about
git://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git

> > > Example for avr32:defconfig:
> > >
> > > fs/built-in.o: In function `anon_inode_getfile':
> > > (.text+0x2ae90): relocation truncated to fit: R_AVR32_21S against
> > > `.text'+296c0
> > >
> > > All builds but avr32:allnoconfig fail with such truncated relocations.
>
> Weirdly I do not get this when I build torvalds/master with allnoconfig.
>
> The avr32 kernel was never very fond of CONFIG_CC_OPTIMIZE_FOR_SIZE=n, it
> was always built with CONFIG_CC_OPTIMIZE_FOR_SIZE=y for actual usage.
>
> > > Toolchain used is the old gcc 4.2.4 toolchain from kernel.org. I have been
> > > unable to find or build newer versions of gcc for avr32.
> > >
> > > Does anyone know if a more recent toolchain for avr32 is available ?
> >
> > https://sourceware.org/ml/crossgcc/2015-10/msg00050.html
> > says avr32 has been depreciated.
>
> Last release of avr32-linux GCC was the 4.2.4 patches in Buildroot for AVR32.
>
> Atmel never upstreamed the AVR32 patches for GCC.
>
> > > Another question is if the avr32 kernel still supported, or if I should
> > > just stop trying to build test it. Any thoughts ?
> >
> > I have already stopped building it.
>
> I build the kernel and try to fix small issues here and there.
>
> If it is too unstable for you in the test bench, feel free to remove it.

I'll keep building it for now, until it fails to build in mainline.

Guenter