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 E632A3858D37 for ; Mon, 29 Aug 2022 13:10:48 +0000 (GMT) DMARC-Filter: OpenDMARC Filter v1.4.1 sourceware.org E632A3858D37 Authentication-Results: sourceware.org; dmarc=pass (p=none dis=none) header.from=redhat.com Authentication-Results: sourceware.org; spf=pass smtp.mailfrom=redhat.com DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1661778647; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: in-reply-to:in-reply-to:references:references; bh=PA7c8qZ5stg7oaVkYqK9LDylcMrR5jQx3hfpFFMMEgo=; b=a9/c+Jq7P6OxM69XhU1Md5hOYQz9PVS8kdXHsTkzgfd5gjpoe9xVQxzxTNvW/YBjE4sNRx CXTdu55IqwFvbsHZQG25pTCjW0DQAusXT45hwA/v5fuLzlgr3UQNmAL0GReN4hF412u3/5 OI4S/TJOHsf1gjC0VqBQG4ugaIQnUiU= Received: from mimecast-mx02.redhat.com (mx3-rdu2.redhat.com [66.187.233.73]) by relay.mimecast.com with ESMTP with STARTTLS (version=TLSv1.2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id us-mta-513-cDFrBI-BMcaCNVdix2C9lg-1; Mon, 29 Aug 2022 09:10:41 -0400 X-MC-Unique: cDFrBI-BMcaCNVdix2C9lg-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 B131F382F1A8; Mon, 29 Aug 2022 13:10:40 +0000 (UTC) Received: from oldenburg.str.redhat.com (unknown [10.39.192.190]) by smtp.corp.redhat.com (Postfix) with ESMTPS id EB3471410F37; Mon, 29 Aug 2022 13:10:39 +0000 (UTC) From: Florian Weimer To: Wilco Dijkstra via Libc-alpha Cc: "H.J. Lu" , Richard Henderson , Wilco Dijkstra Subject: Re: [RESEND PATCH] Makeconfig: Set pie-ccflag to -fPIE by default References: <10cbed26-dc3c-3a55-8e39-95916c614dbb@linaro.org> Date: Mon, 29 Aug 2022 15:10:38 +0200 In-Reply-To: (Wilco Dijkstra via Libc-alpha's message of "Mon, 29 Aug 2022 11:49:51 +0000") Message-ID: <87pmgj2o1d.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=-5.5 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=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on server2.sourceware.org List-Id: * Wilco Dijkstra via Libc-alpha: > However this leads to the question is why aren't all symbols marked as > hidden in the static PIE build? Ie. are there any symbols that must be > shared with a DSO loaded by a dl_open? The static main executable does not have a dynamic symbol table, so such sharing cannot happen (except through function pointers being passed around, but symbol visibility of course does not matter there). Thanks, Florian