From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 25160 invoked by alias); 2 Dec 2014 19:19:18 -0000 Mailing-List: contact gcc-patches-help@gcc.gnu.org; run by ezmlm Precedence: bulk List-Id: List-Archive: List-Post: List-Help: Sender: gcc-patches-owner@gcc.gnu.org Received: (qmail 25149 invoked by uid 89); 2 Dec 2014 19:19:17 -0000 Authentication-Results: sourceware.org; auth=none X-Virus-Found: No X-Spam-SWARE-Status: No, score=-2.4 required=5.0 tests=AWL,BAYES_00,FREEMAIL_FROM,RCVD_IN_DNSWL_LOW,SPF_PASS autolearn=ham version=3.3.2 X-HELO: mail-oi0-f41.google.com Received: from mail-oi0-f41.google.com (HELO mail-oi0-f41.google.com) (209.85.218.41) by sourceware.org (qpsmtpd/0.93/v0.84-503-g423c35a) with (AES128-SHA encrypted) ESMTPS; Tue, 02 Dec 2014 19:19:16 +0000 Received: by mail-oi0-f41.google.com with SMTP id a3so9713692oib.0 for ; Tue, 02 Dec 2014 11:19:14 -0800 (PST) MIME-Version: 1.0 X-Received: by 10.182.63.17 with SMTP id c17mr573488obs.65.1417547954133; Tue, 02 Dec 2014 11:19:14 -0800 (PST) Received: by 10.60.123.111 with HTTP; Tue, 2 Dec 2014 11:19:14 -0800 (PST) Date: Tue, 02 Dec 2014 19:19:00 -0000 Message-ID: Subject: Re: [PATCH x86_64] Optimize access to globals in "-fpie -pie" builds with copy relocations From: Uros Bizjak To: "gcc-patches@gcc.gnu.org" Cc: Sriraman Tallam , "H.J. Lu" , Jakub Jelinek Content-Type: text/plain; charset=UTF-8 X-SW-Source: 2014-12/txt/msg00195.txt.bz2 Hello! > Ping. >> Ping. >>> Ping. >>>> Ping. It would probably help reviewers if you pointed to actual path submission [1], which unfortunately contains the explanation in the patch itself [2], which further explains that this functionality is currently only supported with gold, patched with [3]. [1] https://gcc.gnu.org/ml/gcc-patches/2014-09/msg00645.html [2] https://gcc.gnu.org/ml/gcc-patches/2014-09/txt2CHtu81P1O.txt [3] https://sourceware.org/ml/binutils/2014-05/msg00092.html After a bit of the above detective work, I think that new gcc option is not necessary. The configure should detect if new functionality is supported in the linker, and auto-configure gcc to use it when appropriate. I have also added a couple of linker experts in the CC. Uros.