From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 6933 invoked by alias); 17 Apr 2012 19:09:26 -0000 Received: (qmail 6918 invoked by uid 22791); 17 Apr 2012 19:09:25 -0000 X-SWARE-Spam-Status: No, hits=-6.3 required=5.0 tests=AWL,BAYES_00,KHOP_RCVD_UNTRUST,RCVD_IN_DNSWL_HI,RCVD_IN_HOSTKARMA_W,SPF_HELO_PASS,T_RP_MATCHES_RCVD X-Spam-Check-By: sourceware.org Received: from mx1.redhat.com (HELO mx1.redhat.com) (209.132.183.28) by sourceware.org (qpsmtpd/0.43rc1) with ESMTP; Tue, 17 Apr 2012 19:09:08 +0000 Received: from int-mx01.intmail.prod.int.phx2.redhat.com (int-mx01.intmail.prod.int.phx2.redhat.com [10.5.11.11]) by mx1.redhat.com (8.14.4/8.14.4) with ESMTP id q3HJ97NN011016 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=OK) for ; Tue, 17 Apr 2012 15:09:07 -0400 Received: from host2.jankratochvil.net (ovpn-116-17.ams2.redhat.com [10.36.116.17]) by int-mx01.intmail.prod.int.phx2.redhat.com (8.13.8/8.13.8) with ESMTP id q3HJ93o3023231 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES128-SHA bits=128 verify=NO); Tue, 17 Apr 2012 15:09:06 -0400 Date: Tue, 17 Apr 2012 19:32:00 -0000 From: Jan Kratochvil To: Tom Tromey Cc: Siddhesh Poyarekar , gdb-patches@sourceware.org Subject: Re: [commit] Support 64-bit constants/enums on 32-bit host [Re: [PATCH] Allow 64-bit enum values] Message-ID: <20120417190903.GA7437@host2.jankratochvil.net> References: <20120220132724.GB4753@spoyarek.pnq.redhat.com> <87d397syts.fsf@fleche.redhat.com> <20120229135148.GA32128@spoyarek.pnq.redhat.com> <20120301224428.GA30631@host2.jankratochvil.net> <20120305063542.GA30196@spoyarek.pnq.redhat.com> <20120305080512.GA12311@host2.jankratochvil.net> <20120321100630.GA14496@spoyarek.pnq.redhat.com> <20120417130833.GB15356@host2.jankratochvil.net> <878vhuwhrd.fsf@fleche.redhat.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <878vhuwhrd.fsf@fleche.redhat.com> User-Agent: Mutt/1.5.21 (2010-09-15) X-IsSubscribed: yes Mailing-List: contact gdb-patches-help@sourceware.org; run by ezmlm Precedence: bulk List-Id: List-Subscribe: List-Archive: List-Post: List-Help: , Sender: gdb-patches-owner@sourceware.org X-SW-Source: 2012-04/txt/msg00512.txt.bz2 On Tue, 17 Apr 2012 16:32:54 +0200, Tom Tromey wrote: > I am thinking that presumably people who build a 32-bit gdb without > --enable-64-bit-bfd are interested in the smallest memory footprint. > Also presumably they are not likely to be debugging many 64 bit > processes or perhaps even using enums with values requiring 64 bits; > certainly those would be relatively rare cases. So, if LOC_CONST_BYTES > works, it would be an overall memory savings. While I would never have that idea myself I can also do: #ifdef BFD64 LONGEST ivalue; #else long ivalue; #endif It always keeps the memory footprint and makes 64-bit constants working on 32-bit gdb --enable-64-bit-bfd builds. Regards, Jan