From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 31434 invoked by alias); 4 Aug 2006 14:12:49 -0000 Received: (qmail 31418 invoked by uid 22791); 4 Aug 2006 14:12:48 -0000 X-Spam-Check-By: sourceware.org Received: from igw2.watson.ibm.com (HELO igw2.watson.ibm.com) (129.34.20.6) by sourceware.org (qpsmtpd/0.31) with ESMTP; Fri, 04 Aug 2006 14:12:46 +0000 Received: from sp1n294en1.watson.ibm.com (sp1n294en1.watson.ibm.com [129.34.20.40]) by igw2.watson.ibm.com (8.13.1/8.13.1/8.13.1-2005-04-25 igw) with ESMTP id k74ECVVU010050; Fri, 4 Aug 2006 10:12:31 -0400 Received: from sp1n294en1.watson.ibm.com (localhost [127.0.0.1]) by sp1n294en1.watson.ibm.com (AIX5.2/8.11.6p2/8.11.7/01-14-2004_2) with ESMTP id k74EBkq63566; Fri, 4 Aug 2006 10:11:46 -0400 Received: from mgsmtp00.watson.ibm.com (mgsmtp00.watson.ibm.com [9.2.40.58]) by sp1n294en1.watson.ibm.com (AIX5.2/8.11.6p2/8.11.7/01-14-2004_1) with ESMTP id k74EBjP63564; Fri, 4 Aug 2006 10:11:45 -0400 Received: from makai.watson.ibm.com (makai.watson.ibm.com [9.2.216.144]) by mgsmtp00.watson.ibm.com (8.12.11/8.12.11/2005/09/01) with ESMTP id k74E98TM030550; Fri, 4 Aug 2006 10:09:08 -0400 Received: from watson.ibm.com (localhost [127.0.0.1]) by makai.watson.ibm.com (AIX5.3/8.11.6p2/8.11.0/03-06-2002) with ESMTP id k74EBg832682; Fri, 4 Aug 2006 10:11:42 -0400 Message-Id: <200608041411.k74EBg832682@makai.watson.ibm.com> To: Steven Munroe , binutils@sourceware.org, mark@codesourcery.com, richard@codesourcery.com Subject: Re: Link problems with section anchors In-Reply-To: Message from Richard Sandiford of "Fri, 04 Aug 2006 15:01:42 BST." <87lkq41tx5.fsf@talisman.home> References: <44D2755E.9020600@us.ibm.com> <20060804013032.GB23605@bubble.grove.modra.org> <87y7u427or.fsf@talisman.home> <200608041354.k74DsG832840@makai.watson.ibm.com> <87lkq41tx5.fsf@talisman.home> Date: Fri, 04 Aug 2006 14:12:00 -0000 From: David Edelsohn Mailing-List: contact binutils-help@sourceware.org; run by ezmlm Precedence: bulk List-Subscribe: List-Archive: List-Post: List-Help: , Sender: binutils-owner@sourceware.org X-SW-Source: 2006-08/txt/msg00046.txt.bz2 >>>>> Richard Sandiford writes: Richard> Ick. I really have to question whether that's valid. GCC does care Richard> whether something is link-once or not -- as this PR proves -- so changing Richard> it behind GCC's back seems like a very bad idea. Yes, as is being discussed on #gcc, changing sections with GCC __attribute__ is fine, but this code is changing section semantics behind the compiler's back. One simply cannot expect that to work. Linkonce sections are not just a blackbox string value for GCC to emit. Paul Brook suggests adding CFLAGS-strtoul.c=-fno-section-anchors to Glibc for all files that explicitly declare symbols in linkonce sections. That certainly seems appropriate to me. David