From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 30770 invoked by alias); 15 Feb 2011 02:16:47 -0000 Received: (qmail 30754 invoked by uid 22791); 15 Feb 2011 02:16:46 -0000 X-SWARE-Spam-Status: No, hits=-1.7 required=5.0 tests=AWL,BAYES_00,T_RP_MATCHES_RCVD X-Spam-Check-By: sourceware.org Received: from ausc60pc101.us.dell.com (HELO ausc60pc101.us.dell.com) (143.166.85.206) by sourceware.org (qpsmtpd/0.43rc1) with ESMTP; Tue, 15 Feb 2011 02:16:40 +0000 X-Loopcount0: from 10.152.240.141 Subject: Re: RFC: A new MIPS64 ABI Mime-Version: 1.0 (Apple Message framework v1082) Content-Type: text/plain; charset=us-ascii From: Paul Koning In-Reply-To: <20110215021446.GE29824@synopsys.com> Date: Tue, 15 Feb 2011 02:16:00 -0000 Cc: Matt Thomas , David Daney , GCC , binutils , Prasun Kapoor Content-Transfer-Encoding: quoted-printable Message-Id: References: <4D5990A4.2050308@caviumnetworks.com> <139B199E-0408-4F99-878C-D7063D607497@dell.com> <20110215021446.GE29824@synopsys.com> To: Joe Buck X-IsSubscribed: yes 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/msg00151.txt.bz2 On Feb 14, 2011, at 9:14 PM, Joe Buck wrote: > On Mon, Feb 14, 2011 at 05:57:13PM -0800, Paul Koning wrote: >> It seems that this proposal would benefit programs that need more than 2= GB but less than 4 GB, and for some reason really don't want 64 bit pointe= rs. >>=20 >> This seems like a microscopically small market segment. I can't see any= sense in such an effort. >=20 > I remember the RHEL hugemem patch being a big deal for lots of their > customers, so a process could address the full 4GB instead of only 3GB > on a 32-bit machine. If I recall correctly, upstream didn't want it > (get a 64-bit machine!) but lots of paying customers clamored for it. Fair enough, but that's a very different case. As Matt points out, the pro= posal here requires a 64 bit machine; the only difference is in the user pr= ocess space limit when that process is running in 32 bit mode. paul