From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 26321 invoked by alias); 18 Oct 2006 20:06:02 -0000 Received: (qmail 26310 invoked by uid 22791); 18 Oct 2006 20:06:01 -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; Wed, 18 Oct 2006 20:05:55 +0000 Received: from drow by nevyn.them.org with local (Exim 4.54) id 1GaHfm-00059X-9X; Wed, 18 Oct 2006 16:05:54 -0400 Date: Wed, 18 Oct 2006 20:06:00 -0000 From: Daniel Jacobowitz To: Mark Kettenis Cc: gdb-patches@sourceware.org Subject: Re: Improve end check on rs6000 prologue analyzer Message-ID: <20061018200554.GD13273@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> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <200610181958.k9IJw88G009044@elgar.sibelius.xs4all.nl> 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-Subscribe: List-Archive: List-Post: List-Help: , Sender: gdb-patches-owner@sourceware.org X-SW-Source: 2006-10/txt/msg00233.txt.bz2 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. > @@ -9334,7 +9349,7 @@ > PASS: gdb.gdb/selftest.exp: Set xgdb prompt > PASS: gdb.gdb/selftest.exp: send ^C to child process > PASS: gdb.gdb/selftest.exp: send SIGINT signal to child process > -PASS: gdb.gdb/selftest.exp: backtrace through signal handler > +FAIL: gdb.gdb/selftest.exp: backtrace through signal handler > Running ../../../../src/gdb/gdb/testsuite/gdb.gdb/xfullpath.exp ... > PASS: gdb.gdb/xfullpath.exp: breakpoint in captured_main > PASS: gdb.gdb/xfullpath.exp: run until breakpoint at captured_main This, though, I probably can't without access to an OpenBSD system... -- Daniel Jacobowitz CodeSourcery