[yocto] binutils 2.29.1 ARM Thumb kernel problem

[Andre McCurdy]

On Wed, Apr 4, 2018 at 8:06 AM, Chris Elledge
<celledge at digitallumens.com> wrote:
> Thanks for the feedback. I rolled back binutils to 2.28.0 by copying the
> yocto-2.3.3 binutils recipe directory into my custom layer. That has
> resolved the issue.
>
> I can confirm that binutils 2.29.0 also has the problem. I went from
> yocto-2.3 to 2.4.2 so I hadn't tried binutils 2.29.0 previously. There are
> also reports that openssl and libavcodec are broken when targeting an ARM
> Thumb2 platform with binutils 2.29.*

Yes, that makes sense. The binutils change is in both 2.29.0 and
2.29.1 (and also in 2.30.0).

The next useful experiment would be to stay with binutils 2.29.1 and
apply a patch to revert the one particular commit which caused the
change in behaviour:

  https://sourceware.org/git/gitweb.cgi?p=binutils-gdb.git;a=commitdiff;h=e645cf40b111daef4518a58547de577eb9379ccb