From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from us-smtp-1.mimecast.com (us-smtp-delivery-1.mimecast.com [207.211.31.120]) by sourceware.org (Postfix) with ESMTP id 575AF385BF92 for ; Wed, 1 Apr 2020 09:29:33 +0000 (GMT) DMARC-Filter: OpenDMARC Filter v1.3.2 sourceware.org 575AF385BF92 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-483-21jtsnIdOkKRHZp6SrNMUQ-1; Wed, 01 Apr 2020 05:29:31 -0400 X-MC-Unique: 21jtsnIdOkKRHZp6SrNMUQ-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 B9E6F800D4E; Wed, 1 Apr 2020 09:29:29 +0000 (UTC) Received: from oldenburg2.str.redhat.com (ovpn-113-15.ams2.redhat.com [10.36.113.15]) by smtp.corp.redhat.com (Postfix) with ESMTPS id 29B0960BE2; Wed, 1 Apr 2020 09:29:26 +0000 (UTC) From: Florian Weimer To: Szabolcs Nagy Cc: Fangrui Song , GNU C Library , gnu-gabi , Mark Wielaard , "Zhang\, Annita" , Binutils , Cary Coutant , "Liu\, Hongtao" Subject: Re: binutils ld and new PT_GNU_PROPERTY segment References: <20200219182701.vrtzwhgtpelmpaub@google.com> <2e29243995903cf2d52975543675f2b92fa1e201.camel@klomp.org> <20200222051913.meiied65a5daylvk@google.com> <87tv231tkt.fsf@oldenburg2.str.redhat.com> <20200401092253.GM27072@arm.com> Date: Wed, 01 Apr 2020 11:29:25 +0200 In-Reply-To: <20200401092253.GM27072@arm.com> (Szabolcs Nagy's message of "Wed, 1 Apr 2020 10:22:55 +0100") Message-ID: <87ftdnzh8q.fsf@oldenburg2.str.redhat.com> User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/26.3 (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 Content-Transfer-Encoding: quoted-printable X-Spam-Status: No, score=-12.6 required=5.0 tests=BAYES_00, DKIMWL_WL_HIGH, DKIM_SIGNED, DKIM_VALID, DKIM_VALID_AU, DKIM_VALID_EF, RCVD_IN_DNSWL_NONE, 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: gnu-gabi@sourceware.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Gnu-gabi mailing list List-Unsubscribe: , List-Archive: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 01 Apr 2020 09:29:34 -0000 * Szabolcs Nagy: > why only -r is problematic? > > i thought linking exactly one marked object and other non-marked > ones with an old linker will have the (incorrect) marking on the > output that cannot be recognised as wrong. Where do you get that single marked object? If you are on a CET-enabled distribution, the startup files are marked, so you have multiple marked objects right there. >> I'm not sure we can do that for backwards compatibility reasons. The >> ABI has been out there for several years now. > > on non-x86 targets it can be still done. That's true. Thanks, Florian