From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 14444 invoked by alias); 30 Nov 2006 20:12:02 -0000 Received: (qmail 14430 invoked by uid 22791); 30 Nov 2006 20:12:00 -0000 X-Spam-Check-By: sourceware.org Received: from nevyn.them.org (HELO nevyn.them.org) (66.93.172.17) by sourceware.org (qpsmtpd/0.31.1) with ESMTP; Thu, 30 Nov 2006 20:11:49 +0000 Received: from drow by nevyn.them.org with local (Exim 4.63) (envelope-from ) id 1GpsG2-0006Em-Dw; Thu, 30 Nov 2006 15:11:46 -0500 Date: Thu, 30 Nov 2006 20:12:00 -0000 From: Daniel Jacobowitz To: Mark Kettenis , gdb-patches@sourceware.org Subject: Re: Improve end check on rs6000 prologue analyzer Message-ID: <20061130201146.GA23830@nevyn.them.org> Mail-Followup-To: Mark Kettenis , gdb-patches@sourceware.org References: <20060929213726.GA1770@nevyn.them.org> <200609301932.k8UJW0kw030997@elgar.sibelius.xs4all.nl> <20061017212114.GC12643@nevyn.them.org> <200610181958.k9IJw88G009044@elgar.sibelius.xs4all.nl> <20061018200554.GD13273@nevyn.them.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20061018200554.GD13273@nevyn.them.org> User-Agent: Mutt/1.5.13 (2006-08-11) 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: 2006-11/txt/msg00421.txt.bz2 On Wed, Oct 18, 2006 at 04:05:54PM -0400, Daniel Jacobowitz wrote: > On Wed, Oct 18, 2006 at 09:58:08PM +0200, Mark Kettenis wrote: > > Unfortunately, I still get a few regressions, see below. They all > > seem to be problems with not skipping the complete prologue. I get > > the feeling that using line number information for prologue skipping > > is just not reliable :(. > > It's true that it isn't completely reliable, but it's usually "good > enough" and has its own advantages - it's better than accidentally > walking off into the epilogue, for instance, as this code is currently > somewhat prone to. > > What version of GCC are you using? Perhaps I can reproduce it with a > different version. Hi Mark, did you miss this question? I'd really like to figure out why this patch causes regressions for you. -- Daniel Jacobowitz CodeSourcery