[OE-core] [PATCH 1/1] glibc: Allow 64 bit atomics for x86

[Randy Witt]

On Thu, Oct 29, 2015 at 3:20 PM, Richard Purdie <
richard.purdie at linuxfoundation.org> wrote:

> On Thu, 2015-10-29 at 13:43 -0700, Juro Bystricky wrote:
> > This patch fixes [YOCTO#8140].
> >
> > The fix consist of allowing 64bit atomic ops for x86.
> > This should be safe for i586 and newer CPUs.
> > It also makes the synchronization more efficient.
> >
> > Signed-off-by: Juro Bystricky <juro.bystricky at intel.com>
> > ---
> >  .../glibc/glibc/use_64bit_atomics.patch            | 24
> ++++++++++++++++++++++
> >  meta/recipes-core/glibc/glibc_2.22.bb              |  1 +
> >  2 files changed, 25 insertions(+)
> >  create mode 100644 meta/recipes-core/glibc/glibc/use_64bit_atomics.patch
>
> Since the patch is only changing nativesdk 32 bit x86 and we know that
> the 32 bit SDK is pretty broken at the moment I've merged this on the
> basis that it can't really make it any worse. There is pressure to move
> to the next rc candidate for 2.0.
>
> I would like to get to the bottom of the real issue here and I still
> suspect 32 bit x86 images are likely broken too :/.
>

With Juro's change I built core-image-minimal using a 32-bit buildtools on
a 32-bit host(vm) and that appears to boot fine using runqemu.


> Cheers,
>
> Richard
>
> --
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