From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 14172 invoked by alias); 12 Mar 2007 16:34:48 -0000 Received: (qmail 14099 invoked by uid 22791); 12 Mar 2007 16:34:47 -0000 X-Spam-Check-By: sourceware.org Received: from mx2.suse.de (HELO mx2.suse.de) (195.135.220.15) by sourceware.org (qpsmtpd/0.31) with ESMTP; Mon, 12 Mar 2007 16:34:41 +0000 Received: from Relay2.suse.de (mail2.suse.de [195.135.221.8]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (No client certificate requested) by mx2.suse.de (Postfix) with ESMTP id 79706215DE for ; Mon, 12 Mar 2007 17:34:38 +0100 (CET) From: Andreas Schwab To: gdb-patches@sourceware.org Subject: Re: Enable CFI for PowerPC, try 3 References: <20070312161219.GA6778@caradoc.them.org> X-Yow: Dizzy, are we "REAL PEOPLE" or "AMAZING ANIMALS"? Date: Mon, 12 Mar 2007 16:34:00 -0000 In-Reply-To: <20070312161219.GA6778@caradoc.them.org> (Daniel Jacobowitz's message of "Mon, 12 Mar 2007 12:12:19 -0400") Message-ID: User-Agent: Gnus/5.110006 (No Gnus v0.6) Emacs/22.0.91 (gnu/linux) MIME-Version: 1.0 Content-Type: text/plain; charset=iso-8859-1 Content-Transfer-Encoding: 8bit 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: 2007-03/txt/msg00123.txt.bz2 Daniel Jacobowitz writes: > The last two times that we (Jim B, and then Andreas) tried to enable > PowerPC CFI, we ran into problems with GCC. It used to emit bogus > unwind tables. This has since been fixed - see the comment in the > patch below for the gory details - but if you get it wrong it's such a > messy and terrible outcome. So here's some workarounds. While we are at it, there is a loosely related patch in that never got checked in. Andreas. -- Andreas Schwab, SuSE Labs, schwab@suse.de SuSE Linux Products GmbH, Maxfeldstraße 5, 90409 Nürnberg, Germany PGP key fingerprint = 58CA 54C7 6D53 942B 1756 01D3 44D5 214B 8276 4ED5 "And now for something completely different."