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 7804B3851C35 for ; Thu, 29 Apr 2021 16:16:55 +0000 (GMT) DMARC-Filter: OpenDMARC Filter v1.3.2 sourceware.org 7804B3851C35 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-197-EhoD38rsO2WBjSfzP4zQcw-1; Thu, 29 Apr 2021 12:16:52 -0400 X-MC-Unique: EhoD38rsO2WBjSfzP4zQcw-1 Received: from smtp.corp.redhat.com (int-mx01.intmail.prod.int.phx2.redhat.com [10.5.11.11]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx01.redhat.com (Postfix) with ESMTPS id 0C1C41083EA4; Thu, 29 Apr 2021 16:16:47 +0000 (UTC) Received: from oldenburg.str.redhat.com (ovpn-115-124.ams2.redhat.com [10.36.115.124]) by smtp.corp.redhat.com (Postfix) with ESMTPS id 767F96E708; Thu, 29 Apr 2021 16:16:45 +0000 (UTC) From: Florian Weimer To: Martin Sebor Cc: Joseph Myers , Martin Sebor via Libc-alpha Subject: Re: [PATCH] add attribute none to pthread_setspecific (BZ #27714) References: <2ec7fadb-cc15-a005-f708-d2adecc8cc39@gmail.com> <875z08qqy8.fsf@oldenburg.str.redhat.com> <571eb466-8979-8579-3b52-38f29a628a39@gmail.com> <47fc35d1-05b0-c02e-77dc-b3193aefd865@gmail.com> <8e311d8e-2b4a-06af-b086-7beb0e494422@gmail.com> <87eeeulv93.fsf@oldenburg.str.redhat.com> <878s51h6uj.fsf@oldenburg.str.redhat.com> Date: Thu, 29 Apr 2021 18:16:56 +0200 In-Reply-To: (Martin Sebor's message of "Thu, 29 Apr 2021 08:55:05 -0600") Message-ID: <87lf91dq13.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 10.5.11.11 X-Mimecast-Spam-Score: 0 X-Mimecast-Originator: redhat.com Content-Type: text/plain X-Spam-Status: No, score=-6.5 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_PASS, TXREP autolearn=ham autolearn_force=no version=3.4.2 X-Spam-Checker-Version: SpamAssassin 3.4.2 (2018-09-13) 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, 29 Apr 2021 16:16:56 -0000 * Martin Sebor: >> Is it possible to set the data size as 0? > > There's no way to do that with the existing attribute (in GCC 11.1). > But a solution might be to change GCC 11.2 to treat access none with > void* and no size as size zero. I'll look into that. Thanks, looking forward to it. Florian