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SubjectRe: xtensa port maintenance
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On Tue, Aug 7, 2012 at 3:36 PM, Geert Uytterhoeven <geert@linux-m68k.org> wrote:
> Hi Chris,
>
> On Tue, Aug 7, 2012 at 7:40 AM, Chris Zankel <chris@zankel.net> wrote:
>> On 08/06/2012 04:38 PM, Max Filippov wrote:
>>> AFAIK xtensa linux port is currently in bad shape: it doesn't work in the
>>> mainline, it fails to build in the linux-next. The latest working kernels
>>> for
>>> xtensa are 2.6.29...31 trees hosted at the git.linux-xtensa.org.
>>
>> I wouldn't say it's in bad shape, I just built an vmlinux image from the
>> latest tree (3.6.0-rc1), but it might not be very stable. One of the major
>> issues is not really the kernel but there's actually no way to build a
>> fairly recent version of the toolchain. I have been using a somewhat more
>> recent buildroot version than what is on xtensa-linux.org, but even that
>> version of buildroot is rather old now and needed a few patches.
>
> Are the errors
>
> | dangerous relocation: l32r: literal placed after use: .literal.unlikely
> (http://kisskb.ellerman.id.au/kisskb/buildresult/6845615/)
>
> preventing linking of vmlinux toolchain issues?

They may be considered as such (toolchain now adds *.unlikely sections which
was not the case previously), or may not, depending on what one would expect
from the toolchain. I have a fix for that issue:
https://github.com/jcmvbkbc/linux-xtensa/commit/edd7c14132388d5c09c57cf12c76c6631a1e0277

--
Thanks.
-- Max


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