[PATCH] X86-64: Add _dl_runtime_resolve_avx[512]_opt [BZ #20508]

[Florian Weimer]

On 10/04/2016 05:34 PM, H.J. Lu wrote:
> On Tue, Oct 4, 2016 at 8:24 AM, Florian Weimer <fweimer@redhat.com> wrote:
>> On 10/04/2016 04:47 PM, H.J. Lu wrote:
>>>
>>> On Tue, Oct 4, 2016 at 3:52 AM, Florian Weimer <fweimer@redhat.com> wrote:
>>>>
>>>> On 09/27/2016 07:35 PM, H.J. Lu wrote:
>>>>
>>>>>> Any comments? I will check it in next week if there is no objection.
>>>>>
>>>>>
>>>>>
>>>>> I'd like to backport it to 2.23 and 2.24 branches.  Any objections?
>>>>
>>>>
>>>>
>>>> Just this change, or the requirement for an AVX512F-capable assembler as
>>>> well?
>>>>
>>>
>>> Good question.  This is also needed:
>>>
>>> commit f43cb35c9b3c35addc6dc0f1427caf51786ca1d2
>>> Author: H.J. Lu <hjl.tools@gmail.com>
>>> Date:   Fri Jul 1 05:54:43 2016 -0700
>>>
>>>     Require binutils 2.24 to build x86-64 glibc [BZ #20139]

>> That's not really backportable, I'm afraid.  Our users don't expect we break
>> builds in this way.
>>
>
> Who are those users?

We don't know, really.  But moving forward the baseline binutils 
requirement in a stable release really contradicts what a stable release 
is about.

Florian