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 3D61638708CB for ; Thu, 14 Jan 2021 08:19:51 +0000 (GMT) DMARC-Filter: OpenDMARC Filter v1.3.2 sourceware.org 3D61638708CB 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-7-eFb6bYhIM4qjzmEoKSXy_w-1; Thu, 14 Jan 2021 03:19:48 -0500 X-MC-Unique: eFb6bYhIM4qjzmEoKSXy_w-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 C2063802B47; Thu, 14 Jan 2021 08:19:47 +0000 (UTC) Received: from oldenburg2.str.redhat.com (ovpn-114-66.ams2.redhat.com [10.36.114.66]) by smtp.corp.redhat.com (Postfix) with ESMTPS id 1D4D97047A; Thu, 14 Jan 2021 08:19:46 +0000 (UTC) From: Florian Weimer To: Yihan Dang via Libc-help Cc: Yihan Dang Subject: Re: Can I use printf in dl-load.c? References: Date: Thu, 14 Jan 2021 09:19:45 +0100 In-Reply-To: (Yihan Dang via Libc-help's message of "Thu, 14 Jan 2021 15:04:25 +0800") Message-ID: <87k0sgrkv2.fsf@oldenburg2.str.redhat.com> User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/27.1 (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=-6.7 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_H3, 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-help@sourceware.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Libc-help mailing list List-Unsubscribe: , List-Archive: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 14 Jan 2021 08:19:52 -0000 * Yihan Dang via Libc-help: > I'm trying to use printf to get maplength in > dl-load.c:_dl_map_object_from_fd, and this is how the code looks like: You need to use _dl_printf. Please note that it does not support all formatting directives. Thanks, Florian -- Red Hat GmbH, https://de.redhat.com/ , Registered seat: Grasbrunn, Commercial register: Amtsgericht Muenchen, HRB 153243, Managing Directors: Charles Cachera, Brian Klemm, Laurie Krebs, Michael O'Neill