From mboxrd@z Thu Jan  1 00:00:00 1970
Return-Path: <gdb-return-36898-listarch-gdb=sources.redhat.com@sourceware.org>
Received: (qmail 8360 invoked by alias); 17 Feb 2010 18:22:45 -0000
Received: (qmail 8350 invoked by uid 22791); 17 Feb 2010 18:22:44 -0000
X-SWARE-Spam-Status: No, hits=-2.5 required=5.0 	tests=AWL,BAYES_00,SPF_PASS
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; Wed, 17 Feb 2010 18:22:39 +0000
Received: (qmail 7712 invoked from network); 17 Feb 2010 18:22:37 -0000
Received: from unknown (HELO orlando.localnet) (pedro@127.0.0.2)   by mail.codesourcery.com with ESMTPA; 17 Feb 2010 18:22:37 -0000
From: Pedro Alves <pedro@codesourcery.com>
To: gdb@sourceware.org
Subject: Re: PRecord and hardware watchpoint
Date: Wed, 17 Feb 2010 18:22:00 -0000
User-Agent: KMail/1.12.2 (Linux/2.6.31-19-generic; KDE/4.3.2; x86_64; ; )
Cc: Marc Khouzam <marc.khouzam@ericsson.com>
References: <F7CE05678329534C957159168FA70DEC51F301338A@EUSAACMS0703.eamcs.ericsson.se>
In-Reply-To: <F7CE05678329534C957159168FA70DEC51F301338A@EUSAACMS0703.eamcs.ericsson.se>
MIME-Version: 1.0
Content-Type: Text/Plain;   charset="iso-8859-1"
Content-Transfer-Encoding: 7bit
Message-Id: <201002171822.35700.pedro@codesourcery.com>
X-IsSubscribed: yes
Mailing-List: contact gdb-help@sourceware.org; run by ezmlm
Precedence: bulk
List-Id: <gdb.sourceware.org>
List-Subscribe: <mailto:gdb-subscribe@sourceware.org>
List-Archive: <http://sourceware.org/ml/gdb/>
List-Post: <mailto:gdb@sourceware.org>
List-Help: <mailto:gdb-help@sourceware.org>, <http://sourceware.org/ml/#faqs>
Sender: gdb-owner@sourceware.org
X-SW-Source: 2010-02/txt/msg00116.txt.bz2

On Wednesday 17 February 2010 17:41:00, Marc Khouzam wrote:
> Hi,
> 
> someone asked me if watchpoints worked with Reverse debugging (PRecord),
> so I gave it a try.  What I found is that software watchpoints work but
> not hardware watchpoints.  That sounds reasonable to me.
> 
> What seemed strange was that hardware watchpoints did not work
> even when doing normal forward execution with PRecord enabled.
> I guess during replay it makes sense, but during record?
> 
> Just wondering.
> 

Should work since:

2009-11-22  Pedro Alves  <pedro@codesourcery.com>

        Make hardware breakpoints work for process repord.

        * record.c (record_wait): Only adjust PC on software breakpoints
        hits.

2009-11-22  Pedro Alves  <pedro@codesourcery.com>
            Michael Snyder  <msnyder@vmware.com>

        Make hardware watchpoints work for process record.
(...)

That's post 7.0 though.

> Thanks
> 
> Marc
> 
> P.S. It would be nice to have some kinds of warning to tell user
> not to set hw watchpoints when PRecord is being used.
> 


-- 
Pedro Alves