From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from us-smtp-delivery-124.mimecast.com (us-smtp-delivery-124.mimecast.com [216.205.24.124]) by sourceware.org (Postfix) with ESMTP id 2305D395340E for ; Thu, 1 Jul 2021 08:21:36 +0000 (GMT) DMARC-Filter: OpenDMARC Filter v1.4.1 sourceware.org 2305D395340E Received: from mimecast-mx01.redhat.com (mimecast-mx01.redhat.com [209.132.183.4]) (Using TLS) by relay.mimecast.com with ESMTP id us-mta-467-0ePXuSitOUWZhHbHAYDBYg-1; Thu, 01 Jul 2021 04:21:34 -0400 X-MC-Unique: 0ePXuSitOUWZhHbHAYDBYg-1 Received: from smtp.corp.redhat.com (int-mx02.intmail.prod.int.phx2.redhat.com [10.5.11.12]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx01.redhat.com (Postfix) with ESMTPS id C885D1922965; Thu, 1 Jul 2021 08:21:32 +0000 (UTC) Received: from oldenburg.str.redhat.com (ovpn-115-5.ams2.redhat.com [10.36.115.5]) by smtp.corp.redhat.com (Postfix) with ESMTPS id B708060C13; Thu, 1 Jul 2021 08:21:30 +0000 (UTC) From: Florian Weimer To: "Enrico Weigelt, metux IT consult" Cc: Thiago Macieira , 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) References: <22261946.eFiGugXE7Z@tjmaciei-mobl1> <3c5c29e2-1b52-3576-eda2-018fb1e58ff9@metux.net> <2379132.fg5cGID6mU@tjmaciei-mobl1> <87pmw3ifpv.fsf@oldenburg.str.redhat.com> <030f1462-2bf9-39bc-d620-6d9fbe454a27@metux.net> <87lf6ricqg.fsf@oldenburg.str.redhat.com> <4ba30cb7-6854-0691-fad6-4ca9ce674ac2@metux.net> Date: Thu, 01 Jul 2021 10:21:28 +0200 In-Reply-To: <4ba30cb7-6854-0691-fad6-4ca9ce674ac2@metux.net> (Enrico Weigelt's message of "Thu, 1 Jul 2021 10:08:04 +0200") Message-ID: <878s2qh2bb.fsf@oldenburg.str.redhat.com> User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/27.2 (gnu/linux) MIME-Version: 1.0 Content-Type: text/plain X-Scanned-By: MIMEDefang 2.79 on 10.5.11.12 X-Spam-Status: No, score=-6.7 required=5.0 tests=BAYES_00, DKIMWL_WL_HIGH, DKIM_SIGNED, DKIM_VALID, DKIM_VALID_AU, DKIM_VALID_EF, RCVD_IN_DNSWL_LOW, RCVD_IN_MSPIKE_H4, RCVD_IN_MSPIKE_WL, SPF_HELO_NONE, SPF_NONE, TXREP autolearn=ham autolearn_force=no version=3.4.4 X-Spam-Checker-Version: SpamAssassin 3.4.4 (2020-01-24) on server2.sourceware.org X-BeenThere: libc-alpha@sourceware.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Libc-alpha mailing list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 01 Jul 2021 08:21:37 -0000 * Enrico Weigelt: > And I'm repeating my previous questions: can you name some actual real > world (not hypothetical or academical) scenarios where: > > somebody really needs some binary-only application && > needs those extra modules *into that* application && > cannot recompile these modules into the applications's prefix && > needs AMX in that application && > cannot just use chroot && > cannot put it into container ? There are no real-world scenarios yet which involve AMX, so I'm not sure what you are after with this question. Thanks, Florian