From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 23742 invoked by alias); 11 Oct 2004 02:00:08 -0000 Mailing-List: contact gdb-help@sources.redhat.com; run by ezmlm Precedence: bulk List-Subscribe: List-Archive: List-Post: List-Help: , Sender: gdb-owner@sources.redhat.com Received: (qmail 23619 invoked from network); 11 Oct 2004 02:00:07 -0000 Received: from unknown (HELO mx1.redhat.com) (66.187.233.31) by sourceware.org with SMTP; 11 Oct 2004 02:00:07 -0000 Received: from int-mx1.corp.redhat.com (int-mx1.corp.redhat.com [172.16.52.254]) by mx1.redhat.com (8.12.11/8.12.10) with ESMTP id i9B206Dp002604 for ; Sun, 10 Oct 2004 22:00:06 -0400 Received: from localhost.redhat.com (porkchop.devel.redhat.com [172.16.58.2]) by int-mx1.corp.redhat.com (8.11.6/8.11.6) with ESMTP id i9B205r30113; Sun, 10 Oct 2004 22:00:05 -0400 Received: from gnu.org (localhost [127.0.0.1]) by localhost.redhat.com (Postfix) with ESMTP id 936FC28CD; Sun, 10 Oct 2004 21:59:40 -0400 (EDT) Message-ID: <4169E90C.10803@gnu.org> Date: Mon, 11 Oct 2004 13:59:00 -0000 From: Andrew Cagney User-Agent: Mozilla/5.0 (X11; U; NetBSD macppc; en-GB; rv:1.4.1) Gecko/20041009 MIME-Version: 1.0 To: Jason Molenda Cc: Daniel Jacobowitz , Nick Savoiu , gdb@sources.redhat.com Subject: Re: Debugging a large program References: <20041008121611.A90098@molenda.com> In-Reply-To: <20041008121611.A90098@molenda.com> Content-Type: text/plain; charset=us-ascii; format=flowed Content-Transfer-Encoding: 7bit X-SW-Source: 2004-10/txt/msg00277.txt.bz2 >> Doing this means abandoning the psymtab and instead having symbol code >> directly read each symbol or address as it is needed, and with the >> minimum auxulary information (i.e., direct from disk). > For what it's worth, we've been working on a less ambitious scheme > at Apple for the past month, with similar benefits. (dejavu, sigh) > Andrew's approach is much cooler, but it's definitely not something > that could be done with stabs (as it exists today), and we're stuck > on stabs on MacOS X for a while still. > > Anyway, just a point of information. It was a HUGE win for us on > extremely large applications where they have many large solibs and > the developer is only debugging code in a couple of them. The existing symfile code can be pushed down a level, hiding it behind a new symtab proxy. Andrew