From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 2353 invoked by alias); 22 May 2013 15:16:17 -0000 Mailing-List: contact libffi-discuss-help@sourceware.org; run by ezmlm Precedence: bulk List-Id: List-Subscribe: List-Archive: List-Post: List-Help: , Sender: libffi-discuss-owner@sourceware.org Received: (qmail 2343 invoked by uid 89); 22 May 2013 15:16:17 -0000 X-Spam-SWARE-Status: No, score=-7.0 required=5.0 tests=AWL,BAYES_00,KHOP_THREADED,RCVD_IN_HOSTKARMA_W,RCVD_IN_HOSTKARMA_WL,RP_MATCHES_RCVD,SPF_PASS autolearn=ham version=3.3.1 Received: from smtp.gentoo.org (HELO smtp.gentoo.org) (140.211.166.183) by sourceware.org (qpsmtpd/0.84/v0.84-167-ge50287c) with ESMTP; Wed, 22 May 2013 15:16:16 +0000 Received: from laptop1.gw.ume.nu (ip1-67.bon.riksnet.se [77.110.8.67]) (using TLSv1 with cipher ECDHE-RSA-AES256-SHA (256/256 bits)) (No client certificate requested) (Authenticated sender: zorry) by smtp.gentoo.org (Postfix) with ESMTPSA id 7392733E1C8 for ; Wed, 22 May 2013 15:16:14 +0000 (UTC) From: Magnus Granberg To: libffi-discuss@sourceware.org Subject: Re: [Patch] Updated version of emutramp_enabled_check() for PaX kernels Date: Wed, 22 May 2013 15:16:00 -0000 Message-ID: <2528004.IvVmtUeqAl@laptop1.gw.ume.nu> User-Agent: KMail/4.10.2 (Linux/3.8.10-hardened; KDE/4.10.2; x86_64; ; ) In-Reply-To: References: <1853145.Z13BOjesii@laptop1.gw.ume.nu> MIME-Version: 1.0 Content-Transfer-Encoding: 7Bit Content-Type: text/plain; charset="us-ascii" X-SW-Source: 2013/txt/msg00138.txt.bz2 onsdag 22 maj 2013 07.50.57 skrev Anthony Green: > Hi Magnus, > > Reading /proc/self/status is a little more heavy weight than > checking an environment variable. Do we really have to do this every > time we call dlmmap(), or can we do it once > and cache the result? > > Thanks, > > AG Would be fine to cache the result. /Magnus