From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 321 invoked by alias); 16 Jul 2010 19:37:39 -0000 Received: (qmail 313 invoked by uid 22791); 16 Jul 2010 19:37:38 -0000 X-SWARE-Spam-Status: No, hits=-2.2 required=5.0 tests=AWL,BAYES_00,T_RP_MATCHES_RCVD X-Spam-Check-By: sourceware.org Received: from mail.codesourcery.com (HELO mail.codesourcery.com) (38.113.113.100) by sourceware.org (qpsmtpd/0.43rc1) with ESMTP; Fri, 16 Jul 2010 19:37:31 +0000 Received: (qmail 6782 invoked from network); 16 Jul 2010 19:37:29 -0000 Received: from unknown (HELO caradoc.them.org) (dan@127.0.0.2) by mail.codesourcery.com with ESMTPA; 16 Jul 2010 19:37:29 -0000 Date: Fri, 16 Jul 2010 19:37:00 -0000 From: Daniel Jacobowitz To: Ulrich Weigand Cc: gdb@sourceware.org, rearnsha@arm.com Subject: Re: ARM prologue parsing support for Thumb-2 instructions? Message-ID: <20100716193726.GT6088@caradoc.them.org> References: <201007161703.o6GH3XoP011062@d12av02.megacenter.de.ibm.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <201007161703.o6GH3XoP011062@d12av02.megacenter.de.ibm.com> User-Agent: Mutt/1.5.20 (2009-06-14) Mailing-List: contact gdb-help@sourceware.org; run by ezmlm Precedence: bulk List-Id: List-Subscribe: List-Archive: List-Post: List-Help: , Sender: gdb-owner@sourceware.org X-SW-Source: 2010-07/txt/msg00064.txt.bz2 On Fri, Jul 16, 2010 at 07:03:33PM +0200, Ulrich Weigand wrote: > Since Thumb-2 is the default code generation option on this system, this > makes it just about impossible to backtrace out of any code that does not > come with debug information. > > Now I was wondering whether I'm missing something here ... Is this really > just something that's simply missing? If so, do you know whether anybody > is currently working on adding this support? Otherwise, I could give it > a try. In my personal opinion, having no debug info - not even just .debug_frame - for system libraries is a mistake. That said, I don't think you're missing anything; and I don't know of anyone working on Thumb-2 prologue analysis. -- Daniel Jacobowitz CodeSourcery