From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 12147 invoked by alias); 14 May 2008 18:29:17 -0000 Received: (qmail 12139 invoked by uid 22791); 14 May 2008 18:29:17 -0000 X-Spam-Check-By: sourceware.org Received: from mtagate7.de.ibm.com (HELO mtagate7.de.ibm.com) (195.212.29.156) by sourceware.org (qpsmtpd/0.31) with ESMTP; Wed, 14 May 2008 18:28:37 +0000 Received: from d12nrmr1607.megacenter.de.ibm.com (d12nrmr1607.megacenter.de.ibm.com [9.149.167.49]) by mtagate7.de.ibm.com (8.13.8/8.13.8) with ESMTP id m4EISAIO198312 for ; Wed, 14 May 2008 18:28:10 GMT Received: from d12av02.megacenter.de.ibm.com (d12av02.megacenter.de.ibm.com [9.149.165.228]) by d12nrmr1607.megacenter.de.ibm.com (8.13.8/8.13.8/NCO v8.7) with ESMTP id m4EISAiY3121276 for ; Wed, 14 May 2008 20:28:10 +0200 Received: from d12av02.megacenter.de.ibm.com (loopback [127.0.0.1]) by d12av02.megacenter.de.ibm.com (8.12.11.20060308/8.13.3) with ESMTP id m4EISAVC028152 for ; Wed, 14 May 2008 20:28:10 +0200 Received: from tuxmaker.boeblingen.de.ibm.com (tuxmaker.boeblingen.de.ibm.com [9.152.85.9]) by d12av02.megacenter.de.ibm.com (8.12.11.20060308/8.12.11) with SMTP id m4EISARh028148; Wed, 14 May 2008 20:28:10 +0200 Message-Id: <200805141828.m4EISARh028148@d12av02.megacenter.de.ibm.com> Received: by tuxmaker.boeblingen.de.ibm.com (sSMTP sendmail emulation); Wed, 14 May 2008 20:28:10 +0200 Subject: Re: longjmp handling vs. glibc LD_POINTER_GUARD problems To: drow@false.org (Daniel Jacobowitz) Date: Wed, 14 May 2008 22:01:00 -0000 From: "Ulrich Weigand" Cc: gdb-patches@sourceware.org In-Reply-To: <20080514181311.GB13147@caradoc.them.org> from "Daniel Jacobowitz" at May 14, 2008 02:13:11 PM X-Mailer: ELM [version 2.5 PL2] MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit 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: 2008-05/txt/msg00444.txt.bz2 Daniel Jacobowitz wrote: > Bingo. I discussed this with Pedro, in followups to one of his nine > patches... ah, here it is. > > http://sourceware.org/ml/gdb-patches/2008-04/msg00252.html Huh ... I completely missed that, thanks. > And stepping on platforms that don't provide a fetch routine, plus not > providing fetch routines on platforms which mangle the pointer, is my > best idea so far. Maybe dropping the fetcher entirely? Will that be > too slow? longjmp generally shouldn't very be long, so I don't think this matters. However, Pedro mentioned that there are problems implementing this in the current infrun.c setup, so there maybe some more work required ... Bye, Ulrich -- Dr. Ulrich Weigand GNU Toolchain for Linux on System z and Cell BE Ulrich.Weigand@de.ibm.com