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 [170.10.129.124]) by sourceware.org (Postfix) with ESMTPS id CD8EB3952023 for ; Tue, 3 May 2022 15:38:13 +0000 (GMT) DMARC-Filter: OpenDMARC Filter v1.4.1 sourceware.org CD8EB3952023 Received: from mimecast-mx02.redhat.com (mimecast-mx02.redhat.com [66.187.233.88]) by relay.mimecast.com with ESMTP with STARTTLS (version=TLSv1.2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id us-mta-549-UAuqniCYMtOouyOHVB0fbQ-1; Tue, 03 May 2022 11:38:05 -0400 X-MC-Unique: UAuqniCYMtOouyOHVB0fbQ-1 Received: from smtp.corp.redhat.com (int-mx07.intmail.prod.int.rdu2.redhat.com [10.11.54.7]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx02.redhat.com (Postfix) with ESMTPS id 3A98D1BF27D7; Tue, 3 May 2022 15:36:54 +0000 (UTC) Received: from oldenburg.str.redhat.com (unknown [10.39.193.113]) by smtp.corp.redhat.com (Postfix) with ESMTPS id 435BE153BCA6; Tue, 3 May 2022 15:36:53 +0000 (UTC) From: Florian Weimer To: Stefan Liebler Cc: Adhemerval Zanella , Stefan Liebler via Libc-alpha Subject: Re: [PATCH] S390: Enable static PIE References: <20220428141530.567838-1-stli@linux.ibm.com> <87y1zk70vk.fsf@oldenburg.str.redhat.com> <760241d4-2f3e-7078-ad98-a4d8ed3fdc69@linaro.org> <87r15b4ubx.fsf@oldenburg.str.redhat.com> Date: Tue, 03 May 2022 17:36:51 +0200 In-Reply-To: (Stefan Liebler's message of "Tue, 3 May 2022 14:56:19 +0200") Message-ID: <87pmkufx0s.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 2.85 on 10.11.54.7 X-Mimecast-Spam-Score: 0 X-Mimecast-Originator: redhat.com Content-Type: text/plain X-Spam-Status: No, score=-5.1 required=5.0 tests=BAYES_00, DKIMWL_WL_HIGH, DKIM_SIGNED, DKIM_VALID, DKIM_VALID_AU, DKIM_VALID_EF, RCVD_IN_DNSWL_LOW, SPF_HELO_NONE, SPF_NONE, TXREP, T_SCC_BODY_TEXT_LINE 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: 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: Tue, 03 May 2022 15:38:14 -0000 * Stefan Liebler: > I've just build glibc-HEAD and run the testsuite with > /proc/sys/kernel/randomize_va_space = 0. => Recognized fails as srbk failed. > > Then I've build with Florian's patch series on top. I don't see any > testsuite fails. Furthermore I've debbugged a static testcase into > _dl_early_allocate => mmap was used as result and previous was equal. > > With Florian's patch series also applied, static PIE binaries also run > on an unchanged kernel. That's great. Then I think this means it's safe to enable static PIE for s390x. Thanks, Florian