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 [170.10.133.124]) by sourceware.org (Postfix) with ESMTPS id 8CFD23940032 for ; Wed, 12 Jan 2022 22:38:52 +0000 (GMT) DMARC-Filter: OpenDMARC Filter v1.4.1 sourceware.org 8CFD23940032 Received: from mimecast-mx01.redhat.com (mimecast-mx01.redhat.com [209.132.183.4]) by relay.mimecast.com with ESMTP with STARTTLS (version=TLSv1.2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id us-mta-620-gAtevpPxOkW00v0TVLKSUQ-1; Wed, 12 Jan 2022 17:38:49 -0500 X-MC-Unique: gAtevpPxOkW00v0TVLKSUQ-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 A7F61A2F93D; Wed, 12 Jan 2022 22:33:56 +0000 (UTC) Received: from oldenburg.str.redhat.com (unknown [10.39.192.102]) by smtp.corp.redhat.com (Postfix) with ESMTPS id 897E96E54B; Wed, 12 Jan 2022 22:33:55 +0000 (UTC) From: Florian Weimer To: "H.J. Lu" Cc: GNU C Library , Jakub Jelinek Subject: Re: [PATCH 0/2] Remove some i386 system call optimizations References: <87iluqqa9n.fsf@oldenburg.str.redhat.com> <87bl0hriko.fsf@oldenburg.str.redhat.com> <87wnj4lp8k.fsf@oldenburg.str.redhat.com> <87sftslnmz.fsf@oldenburg.str.redhat.com> Date: Wed, 12 Jan 2022 23:33:53 +0100 In-Reply-To: (H. J. Lu's message of "Wed, 12 Jan 2022 13:59:55 -0800") Message-ID: <87o84glh2m.fsf@oldenburg.str.redhat.com> User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/27.2 (gnu/linux) MIME-Version: 1.0 X-Scanned-By: MIMEDefang 2.79 on 10.5.11.12 X-Mimecast-Spam-Score: 0 X-Mimecast-Originator: redhat.com Content-Type: text/plain X-Spam-Status: No, score=-6.4 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_H3, 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: Wed, 12 Jan 2022 22:38:53 -0000 * H. J. Lu: > OPTIMIZE_FOR_GCC_5 enables 2 things: one is let GCC handle > -fPIC and the other is use > > register int reg asm ("ebp") > > which is unreliable. You want to let GCC handle -fPIC and > remove CAN_USE_REGISTER_ASM_EBP. If this is correct, > please combine 2 patches into one and reference BZ #28771 > in the commit log. Yes, that is an accurate summary. I will send a patch according to your suggestions tomorrow. Thanks, Florian