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 454F63858C1F for ; Mon, 31 Jan 2022 19:49:37 +0000 (GMT) DMARC-Filter: OpenDMARC Filter v1.4.1 sourceware.org 454F63858C1F 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-649-isuNs_x_OJCxVFRJVLZ_4A-1; Mon, 31 Jan 2022 14:49:33 -0500 X-MC-Unique: isuNs_x_OJCxVFRJVLZ_4A-1 Received: from smtp.corp.redhat.com (int-mx03.intmail.prod.int.phx2.redhat.com [10.5.11.13]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx01.redhat.com (Postfix) with ESMTPS id 2B4921091DA1; Mon, 31 Jan 2022 19:49:32 +0000 (UTC) Received: from oldenburg.str.redhat.com (unknown [10.39.193.205]) by smtp.corp.redhat.com (Postfix) with ESMTPS id 05CA3226E8; Mon, 31 Jan 2022 19:49:30 +0000 (UTC) From: Florian Weimer To: Jonathan Wakely via Gcc-help Cc: Farid Zakaria , Jonathan Wakely Subject: Re: How can I wrap ld-linux or execve into it? References: Date: Mon, 31 Jan 2022 20:49:29 +0100 In-Reply-To: (Jonathan Wakely via Gcc-help's message of "Mon, 31 Jan 2022 08:12:45 +0000") Message-ID: <871r0n7kja.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 10.5.11.13 X-Mimecast-Spam-Score: 0 X-Mimecast-Originator: redhat.com Content-Type: text/plain X-Spam-Status: No, score=-6.2 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_H2, 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: gcc-help@gcc.gnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Gcc-help mailing list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 31 Jan 2022 19:49:40 -0000 * Jonathan Wakely via Gcc-help: > On Mon, 31 Jan 2022, 03:54 Farid Zakaria via Gcc-help, > wrote: > >> Hi, >> >> Not exactly sure if this is the best mailing list for this question, >> please recommend me elsewhere if more appropriate. >> >> I am looking to perform some functionality before the dynamic linker >> (linux-ld/ld.so) is invoked. >> > > I would try the glibc list then. Specifically libc-help: Farid, the LD_AUDIT interface may be what you are looking for. It allows one to write dynamic loader plugins which run very early. Thanks, Florian