From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 4262 invoked by alias); 4 May 2004 15:37:50 -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 4255 invoked from network); 4 May 2004 15:37:48 -0000 Received: from unknown (HELO mx1.redhat.com) (66.187.233.31) by sources.redhat.com with SMTP; 4 May 2004 15:37:48 -0000 Received: from int-mx1.corp.redhat.com (int-mx1.corp.redhat.com [172.16.52.254]) by mx1.redhat.com (8.12.10/8.12.10) with ESMTP id i44FbmkI032623 for ; Tue, 4 May 2004 11:37:48 -0400 Received: from localhost.redhat.com (to-dhcp51.toronto.redhat.com [172.16.14.151]) by int-mx1.corp.redhat.com (8.11.6/8.11.6) with ESMTP id i44Fbfv16683; Tue, 4 May 2004 11:37:47 -0400 Received: from gnu.org (localhost [127.0.0.1]) by localhost.redhat.com (Postfix) with ESMTP id 550372B9D; Tue, 4 May 2004 11:37:42 -0400 (EDT) Message-ID: <4097B8C6.10805@gnu.org> Date: Tue, 04 May 2004 15:37:00 -0000 From: Andrew Cagney User-Agent: Mozilla/5.0 (X11; U; NetBSD macppc; en-GB; rv:1.4.1) Gecko/20040217 MIME-Version: 1.0 To: Michael Elizabeth Chastain Cc: ezannoni@redhat.com, gdb@sources.redhat.com, jimb@redhat.com Subject: Re: Phasing out Dwarf 1? References: <20040503155621.CF3194B104@berman.michael-chastain.com> In-Reply-To: <20040503155621.CF3194B104@berman.michael-chastain.com> Content-Type: text/plain; charset=us-ascii; format=flowed Content-Transfer-Encoding: 7bit X-SW-Source: 2004-05/txt/msg00024.txt.bz2 > I would like to phase out support for the Dwarf 1 debug format. > > I did some research and wrote the results as comments in dwarfread.c. > I found reports from gdb users with three different compilers mentioned: > > gcc > diab > absoft I believe that you've already demonstrated that there are no dwarf-1 cross compilers left (they've all migrated to dwarf-2). That just leaves us with dwarf-1 systems. How many dwarf-1 systems does GDB still support? If we've also eliminated all our dwarf-1 systems, there's little sense in retaining dwarf-1 support. (we might also determine that such systems require an ISO-C compiler (e.g., GCC) to build GDB and hence argue that GDB can assume dwarf-2 is present.) > All of these compilers now have released versions with dwarf-2 support. > gcc 3.4.0 has no more dwarf-1 at all. For the moment lets get the technical argument straight. Andrew