[AArch64] Disable pcrelative_literal_loads with fix-cortex-a53-843419

[Kyrill Tkachov]

On 26/01/16 14:42, Christophe Lyon wrote:
> Hi,
>
> This is a followup to PR63304.
>
> As discussed in bugzilla, this patch disables pcrelative_literal_loads
> when -mfix-cortex-a53-843419 (or its default configure option) is
> used.
>
> I copied the behavior of -mfix-cortex-a53-835769 (e.g. in
> aarch64_can_inline_p), and I have tested by building the Linux kernel
> using -mfix-cortex-a53-843419 and checked that
> R_AARCH64_ADR_PREL_PG_HI21 relocations are not emitted anymore (under
> CONFIG_ARM64_ERRATUM_843419).
>
> For reference, this is motivated by:
> https://bugs.linaro.org/show_bug.cgi?id=1994
> and further details on Launchpad:
> https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1533009
>
> OK for trunk?
>
> Thanks,
>
> Christophe.
>

ENOPATCH.

Thanks,
Kyrill