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 ESMTP id A3F063858D35 for ; Mon, 18 Oct 2021 07:36:18 +0000 (GMT) DMARC-Filter: OpenDMARC Filter v1.4.1 sourceware.org A3F063858D35 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-190-vw-CizWTNzyh6exgP9tY3g-1; Mon, 18 Oct 2021 03:36:16 -0400 X-MC-Unique: vw-CizWTNzyh6exgP9tY3g-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 E8F0C19057A7; Mon, 18 Oct 2021 07:36:15 +0000 (UTC) Received: from oldenburg.str.redhat.com (unknown [10.39.192.10]) by smtp.corp.redhat.com (Postfix) with ESMTPS id C37BC652AC; Mon, 18 Oct 2021 07:36:14 +0000 (UTC) From: Florian Weimer To: Martin Uecker via Libffi-discuss Subject: Re: wide function pointer type References: <9362563f8803f575d00c03835d2897b3836a7645.camel@gmail.com> <857da973fe5bbb94a363114262b57d42b35cc1f6.camel@gmail.com> Date: Mon, 18 Oct 2021 09:36:13 +0200 In-Reply-To: <857da973fe5bbb94a363114262b57d42b35cc1f6.camel@gmail.com> (Martin Uecker via Libffi-discuss's message of "Mon, 18 Oct 2021 07:58:45 +0200") Message-ID: <87czo2hjiq.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=-6.4 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_H2, 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: libffi-discuss@sourceware.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Libffi-discuss mailing list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 18 Oct 2021 07:36:19 -0000 * Martin Uecker via Libffi-discuss: > In particular, I would be good to know whether > implementing a perfectly forwarding stub for > a variadic functions that loads the static > is possible on all architectures. I assume so, > but I am not entirely sure. Are you asking if it is possible to consume an argument in a variadic wrapper and forward the remaining arguments to a variadic function? The answer to that is no. Thanks, Florian