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Re: [PATCH] x86: make embedded endbr64 check compatible with older GNU grep
- To: Jan Beulich <jbeulich@xxxxxxxx>, "xen-devel@xxxxxxxxxxxxxxxxxxxx" <xen-devel@xxxxxxxxxxxxxxxxxxxx>
- From: Andrew Cooper <Andrew.Cooper3@xxxxxxxxxx>
- Date: Thu, 24 Feb 2022 23:48:34 +0000
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- Thread-topic: [PATCH] x86: make embedded endbr64 check compatible with older GNU grep
On 24/02/2022 11:22, Andrew Cooper wrote:
> On 24/02/2022 10:21, Andrew Cooper wrote:
>> On 24/02/2022 10:14, Jan Beulich wrote:
>>> With version 2.7 I'm observing support for binary searches, but
>>> unreliable results: Only a subset of the supposed matches is actually
>>> reported; for our pattern I've never observed any match. This same
>>> version works fine when handing it a Perl regexp using hex or octal
>>> escapes. Probe for support of -P and prefer that over the original
>>> approach.
>>>
>>> Fixes: 4d037425dccf ("x86: Build check for embedded endbr64 instructions")
>>> Signed-off-by: Jan Beulich <jbeulich@xxxxxxxx>
>> Looks plausible. Tentative ack, but this definitely needs a full run
>> through CI before committing. Let me kick something off.
> Started now:
>
> https://gitlab.com/xen-project/people/andyhhp/xen/-/pipelines/478508459
> https://cirrus-ci.com/build/6255196018835456
Everything is green. Good to commit.
Acked-by: Andrew Cooper <andrew.cooper3@xxxxxxxxxx>
~Andrew
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