From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 13298 invoked by alias); 4 Mar 2010 05:30:34 -0000 Received: (qmail 13279 invoked by uid 22791); 4 Mar 2010 05:30:32 -0000 X-SWARE-Spam-Status: No, hits=-2.4 required=5.0 tests=AWL,BAYES_00 X-Spam-Check-By: sourceware.org Received: from rock.gnat.com (HELO rock.gnat.com) (205.232.38.15) by sourceware.org (qpsmtpd/0.43rc1) with ESMTP; Thu, 04 Mar 2010 05:30:27 +0000 Received: from localhost (localhost.localdomain [127.0.0.1]) by filtered-rock.gnat.com (Postfix) with ESMTP id 4C8512BAB9C; Thu, 4 Mar 2010 00:30:26 -0500 (EST) Received: from rock.gnat.com ([127.0.0.1]) by localhost (rock.gnat.com [127.0.0.1]) (amavisd-new, port 10024) with LMTP id rI4NQD6E5XYY; Thu, 4 Mar 2010 00:30:26 -0500 (EST) Received: from joel.gnat.com (localhost.localdomain [127.0.0.1]) by rock.gnat.com (Postfix) with ESMTP id CF62A2BAB5E; Thu, 4 Mar 2010 00:30:25 -0500 (EST) Received: by joel.gnat.com (Postfix, from userid 1000) id DDED3F5894; Thu, 4 Mar 2010 09:30:17 +0400 (RET) Date: Thu, 04 Mar 2010 05:30:00 -0000 From: Joel Brobecker To: Pedro Alves Cc: gdb-patches@sourceware.org Subject: Re: Watching expressions that don't involve memory (e.g., watch $regfoo) Message-ID: <20100304053017.GH2832@adacore.com> References: <201003040156.44957.pedro@codesourcery.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <201003040156.44957.pedro@codesourcery.com> User-Agent: Mutt/1.5.20 (2009-06-14) 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: 2010-03/txt/msg00157.txt.bz2 > Anyone else things this is useful? Here's a 5 minute hack at it. > +* Watchpoints on expressions not involving memory > + > + GDB now supports watching expressions that don't involve memory. > + This allows, for example, watching for register changes. > + E.g. "watch $pc" will do the right thing. I think that this might be very useful, indeed. For instance, if a variable is stored in a register instead of memory. -- Joel