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 ESMTPS id 783FF3858D35 for ; Fri, 14 Jan 2022 14:34:42 +0000 (GMT) DMARC-Filter: OpenDMARC Filter v1.4.1 sourceware.org 783FF3858D35 Received: from mimecast-mx01.redhat.com (mimecast-mx01.redhat.com [209.132.183.4]) by relay.mimecast.com with ESMTP with STARTTLS (version=TLSv1.2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id us-mta-106-lrRWdyWHMoifQAu9MvwiSA-1; Fri, 14 Jan 2022 09:34:39 -0500 X-MC-Unique: lrRWdyWHMoifQAu9MvwiSA-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 372DB835B47; Fri, 14 Jan 2022 14:34:38 +0000 (UTC) Received: from oldenburg.str.redhat.com (unknown [10.39.192.49]) by smtp.corp.redhat.com (Postfix) with ESMTPS id 79928753E5; Fri, 14 Jan 2022 14:34:37 +0000 (UTC) From: Florian Weimer To: "H.J. Lu" Cc: GNU C Library Subject: Re: [PATCH 4/7] Add --early-cflags configure option References: <87h7a6tmpd.fsf@oldenburg.str.redhat.com> Date: Fri, 14 Jan 2022 15:34:35 +0100 In-Reply-To: (H. J. Lu's message of "Fri, 14 Jan 2022 06:33:06 -0800") Message-ID: <87czkutmh0.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_H3, RCVD_IN_MSPIKE_WL, 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: 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, 14 Jan 2022 14:34:43 -0000 * H. J. Lu: > On Fri, Jan 14, 2022 at 6:29 AM Florian Weimer wrote: >> >> * H. J. Lu: >> >> >> +@item --with-early-cflags=@var{cflags} >> >> +Use additional compiler flags @var{cflags} to build the early startup >> >> +code of the dynamic linker. These flags can be used to enable early >> >> +dynamic linker diagnostics to run on CPUs which are not compatible with >> >> +the rest of @theglibc{}, for example, due to compiler flags which target >> >> +a later instruction set architecture (ISA). >> > >> > Isn't it limited to rtld? If yes, I prefer --with-early-rtld-cflags >> >> It's currently restricted to ld.so. But we might enhance it to cover >> static linking in the future, too. > > But static linking may need a different early CFLAGS. Fair point, I will send an updated patch. Thanks, Florian