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 ED9673989CB8 for ; Fri, 16 Apr 2021 17:26:17 +0000 (GMT) DMARC-Filter: OpenDMARC Filter v1.3.2 sourceware.org ED9673989CB8 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-451-AIRXJkwdOVmePYgtAjXwwg-1; Fri, 16 Apr 2021 13:26:09 -0400 X-MC-Unique: AIRXJkwdOVmePYgtAjXwwg-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 8EF48A0CB4; Fri, 16 Apr 2021 17:26:08 +0000 (UTC) Received: from oldenburg.str.redhat.com (ovpn-113-139.ams2.redhat.com [10.36.113.139]) by smtp.corp.redhat.com (Postfix) with ESMTPS id E3ADF60C0F; Fri, 16 Apr 2021 17:26:06 +0000 (UTC) From: Florian Weimer To: Pedro Alves Cc: Simon Marchi , libc-alpha@sourceware.org, gdb-patches@sourceware.org, Emil Velikov , Kevin Buettner Subject: Re: [PATCH glibc] nptl_db: different libpthread/ld.so load orders (bug 27744) References: <87sg3qnrz3.fsf@oldenburg.str.redhat.com> <73b32cc6-e201-8bac-e442-e3dddcc01e0d@polymtl.ca> <625ec5fe-bd09-860a-f617-745042b94011@redhat.com> <87fszqnqi3.fsf@oldenburg.str.redhat.com> <87blaenprw.fsf@oldenburg.str.redhat.com> <83364527-b4aa-b7cc-928b-10d20c4338a3@polymtl.ca> Date: Fri, 16 Apr 2021 19:26:25 +0200 In-Reply-To: (Pedro Alves's message of "Fri, 16 Apr 2021 18:18:24 +0100") Message-ID: <87y2dim98e.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_H4, RCVD_IN_MSPIKE_WL, SPF_HELO_NONE, SPF_PASS, TXREP autolearn=unavailable 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: Fri, 16 Apr 2021 17:26:19 -0000 * Pedro Alves: > If not, GDB should be keying the loading of libthread_db.so on > something else. Making GDB try to load libthread_db in reaction to > processing ld.so instead libthread_db.so would fix that, I think. > And, it would fix this ordering problem at hand as well. So if we do > that, maybe we don't need the other changes. It may be a bit difficult to recognize ld.so though, given its non-portable soname. Thanks, Florian