From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 6841 invoked by alias); 24 Feb 2010 16:30:53 -0000 Received: (qmail 6795 invoked by uid 22791); 24 Feb 2010 16:30:51 -0000 X-SWARE-Spam-Status: No, hits=-6.8 required=5.0 tests=AWL,BAYES_00,RCVD_IN_DNSWL_HI,SPF_HELO_PASS 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; Wed, 24 Feb 2010 16:30:45 +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 (8.13.8/8.13.8) with ESMTP id o1OGUgbi018774 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=OK); Wed, 24 Feb 2010 11:30:42 -0500 Received: from ns3.rdu.redhat.com (ns3.rdu.redhat.com [10.11.255.199]) by int-mx01.intmail.prod.int.phx2.redhat.com (8.13.8/8.13.8) with ESMTP id o1OGUfWf006977; Wed, 24 Feb 2010 11:30:42 -0500 Received: from opsy.redhat.com (ovpn01.gateway.prod.ext.phx2.redhat.com [10.5.9.1]) by ns3.rdu.redhat.com (8.13.8/8.13.8) with ESMTP id o1OGUZqE010998; Wed, 24 Feb 2010 11:30:41 -0500 Received: by opsy.redhat.com (Postfix, from userid 500) id 6E70037818E; Wed, 24 Feb 2010 09:30:35 -0700 (MST) From: Tom Tromey To: "Ulrich Weigand" Cc: gdb-patches@sourceware.org Subject: Re: FYI: fix big-endian bug with DWARF_VALUE_STACK References: <201002241411.o1OEBrHC011378@d12av02.megacenter.de.ibm.com> Reply-To: Tom Tromey Date: Wed, 24 Feb 2010 16:30:00 -0000 In-Reply-To: <201002241411.o1OEBrHC011378@d12av02.megacenter.de.ibm.com> (Ulrich Weigand's message of "Wed, 24 Feb 2010 15:11:53 +0100 (CET)") Message-ID: User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/23.1 (gnu/linux) MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii 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: 2010-02/txt/msg00597.txt.bz2 >>>>> "Ulrich" == Ulrich Weigand writes: Ulrich> This seems somewhat different in that the DW_OP_implicit_value Ulrich> explicitly provides data of a certain length. On the other Ulrich> hand, DW_OP_stack_value refers to the value on top of the stack, Ulrich> which -as I understand it- is a numerical value, not a sequence Ulrich> of bytes of defined length. Elements on the operand stack are explicitly address-sized. From DWARF 1.11.1: Each element of the stack is the size of an address on the target machine. Ulrich> So it would seem to me that you should be able to request that Ulrich> this value be represented in any arbitrary length ... That interpretation makes sense to me, but so does the one making it an error. I suspect we will never run across code that exercises this. If you want to change it, I have no objection. Tom