From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 15163 invoked by alias); 17 Feb 2011 15:45:02 -0000 Received: (qmail 15064 invoked by uid 22791); 17 Feb 2011 15:45:00 -0000 X-SWARE-Spam-Status: No, hits=-1.8 required=5.0 tests=AWL,BAYES_00,T_RP_MATCHES_RCVD X-Spam-Check-By: sourceware.org Received: from nikam.ms.mff.cuni.cz (HELO nikam.ms.mff.cuni.cz) (195.113.20.16) by sourceware.org (qpsmtpd/0.43rc1) with ESMTP; Thu, 17 Feb 2011 15:44:55 +0000 Received: by nikam.ms.mff.cuni.cz (Postfix, from userid 16202) id 0EF469AC945; Thu, 17 Feb 2011 16:44:53 +0100 (CET) Date: Thu, 17 Feb 2011 15:45:00 -0000 From: Jan Hubicka To: "H.J. Lu" Cc: Jan Hubicka , Jakub Jelinek , Jan Beulich , "H. Peter Anvin" , GCC Development , x32-abi@googlegroups.com, Binutils , GNU C Library Subject: Re: x32 psABI draft version 0.2 Message-ID: <20110217154452.GA18799@kam.mff.cuni.cz> References: <4D5C2DD2.10608@zytor.com> <4D5CEBDE02000078000325A2@vpn.id2.novell.com> <20110217142916.GI13037@sunsite.ms.mff.cuni.cz> <20110217152233.GB11346@atrey.karlin.mff.cuni.cz> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.5.18 (2008-05-17) Mailing-List: contact binutils-help@sourceware.org; run by ezmlm Precedence: bulk List-Id: List-Subscribe: List-Archive: List-Post: List-Help: , Sender: binutils-owner@sourceware.org X-SW-Source: 2011-02/txt/msg00216.txt.bz2 > > According to Mozilla folks however REL+RELA scheme used by EABI leads > > to significandly smaller libxul.so size > > > > According to http://glandium.org/blog/?p=1177 the difference is about 4-5MB > > (out of approximately 20-30MB shared lib) > > This is orthogonal to x32 psABI. Understood. I am just pointing out that x86-64 Mozilla suffers from startup problems (extra 5MB of disk read needed) compared to both x86 and ARM EABI because x86-64 ABI is RELA only. If x86-64 ABI was REL+RELA like EABI is, we would not have this problem here. Honza