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From: Florian Weimer <fweimer@redhat.com>
To: "Enrico Weigelt, metux IT consult" <lkml@metux.net>
Cc: Thiago Macieira <thiago.macieira@intel.com>,
	hjl.tools@gmail.com, libc-alpha@sourceware.org,
	linux-api@vger.kernel.org, linux-arch@vger.kernel.org,
	x86@kernel.org
Subject: Re: x86 CPU features detection for applications (and AMX)
Date: Wed, 30 Jun 2021 17:38:47 +0200	[thread overview]
Message-ID: <87lf6ricqg.fsf@oldenburg.str.redhat.com> (raw)
In-Reply-To: <030f1462-2bf9-39bc-d620-6d9fbe454a27@metux.net> (Enrico Weigelt's message of "Wed, 30 Jun 2021 17:16:06 +0200")

* Enrico Weigelt:

> On 30.06.21 16:34, Florian Weimer wrote:
>
>> It breaks integration with system-wide settings, such as user/group
>> databases, host name lookup, and cryptographic policies.  In many
>> environments, that is not really an option.
>
> Not necessarily, these can still be applied (and fairly simple).
> You actually have to twist more extra knobs if to wanted those weird
> things to happen.

Sorry, this is just not true.  You cannot load system libraries such as
NSS modules or cryptographic libraries with a custom glibc because the
system glibc could be newer, and glibc does not provide that kind of
compatibility (only the other way round).

Thanks,
Florian


  reply	other threads:[~2021-06-30 15:38 UTC|newest]

Thread overview: 35+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-06-23 15:04 x86 CPU features detection for applications (and AMX) Florian Weimer
2021-06-23 15:32 ` Dave Hansen
2021-07-08  6:05   ` Florian Weimer
2021-07-08 14:19     ` Dave Hansen
2021-07-08 14:31       ` Florian Weimer
2021-07-08 14:36         ` Dave Hansen
2021-07-08 14:41           ` Florian Weimer
2021-06-25 23:31 ` Thiago Macieira
2021-06-28 12:40   ` Enrico Weigelt, metux IT consult
2021-06-28 13:20     ` Peter Zijlstra
2021-06-30 12:50       ` Enrico Weigelt, metux IT consult
2021-06-30 15:36         ` Thiago Macieira
2021-07-01  7:35           ` Enrico Weigelt, metux IT consult
2021-06-28 15:08     ` Thiago Macieira
2021-06-28 15:27       ` Peter Zijlstra
2021-06-28 16:13         ` Thiago Macieira
2021-06-28 17:11           ` Peter Zijlstra
2021-06-28 17:23             ` Thiago Macieira
2021-06-28 19:08               ` Peter Zijlstra
2021-06-28 19:26                 ` Thiago Macieira
2021-06-28 17:43           ` Peter Zijlstra
2021-06-28 19:05             ` Thiago Macieira
2021-06-30 14:32       ` Enrico Weigelt, metux IT consult
2021-06-30 14:34         ` Florian Weimer
2021-06-30 15:16           ` Enrico Weigelt, metux IT consult
2021-06-30 15:38             ` Florian Weimer [this message]
2021-07-01  8:08               ` Enrico Weigelt, metux IT consult
2021-07-01  8:21                 ` Florian Weimer
2021-07-01 11:59                   ` Enrico Weigelt, metux IT consult
2021-07-06 12:57                     ` Florian Weimer
2021-06-30 15:29         ` Thiago Macieira
2021-07-01 11:57           ` Enrico Weigelt, metux IT consult
2021-07-08  7:08   ` Florian Weimer
2021-07-08 15:13     ` Thiago Macieira
2021-07-08 17:56 ` Mark Brown

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