From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 19596 invoked by alias); 26 Feb 2008 16:47:12 -0000 Received: (qmail 19587 invoked by uid 22791); 26 Feb 2008 16:47:11 -0000 X-Spam-Check-By: sourceware.org Received: from NaN.false.org (HELO nan.false.org) (208.75.86.248) by sourceware.org (qpsmtpd/0.31) with ESMTP; Tue, 26 Feb 2008 16:46:52 +0000 Received: from nan.false.org (localhost [127.0.0.1]) by nan.false.org (Postfix) with ESMTP id D4D689811F; Tue, 26 Feb 2008 16:46:50 +0000 (GMT) Received: from caradoc.them.org (22.svnf5.xdsl.nauticom.net [209.195.183.55]) by nan.false.org (Postfix) with ESMTP id 8073298118; Tue, 26 Feb 2008 16:46:50 +0000 (GMT) Received: from drow by caradoc.them.org with local (Exim 4.69) (envelope-from ) id 1JU2x7-0005ty-3b; Tue, 26 Feb 2008 11:46:49 -0500 Date: Tue, 26 Feb 2008 16:58:00 -0000 From: Daniel Jacobowitz To: "Maciej W. Rozycki" Cc: gdb-patches@sourceware.org, David Ung , Nigel Stephens , "Maciej W. Rozycki" Subject: Re: MDI: testsuite support Message-ID: <20080226164649.GA22470@caradoc.them.org> Mail-Followup-To: "Maciej W. Rozycki" , gdb-patches@sourceware.org, David Ung , Nigel Stephens , "Maciej W. Rozycki" References: <20080226161716.GB19531@caradoc.them.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.5.17 (2007-12-11) 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: 2008-02/txt/msg00395.txt.bz2 On Tue, Feb 26, 2008 at 04:38:51PM +0000, Maciej W. Rozycki wrote: > Which "rest of the MDI target" are you specifically referring to? I meant the actual target, that is, the bits this testsuite support lets you test. You haven't posted that, have you? > Note I mean these commands are really obscure and are used things like to > peek or poke at TLB entries and cache lines "through a back door", so I > gather whoever is skilled enough to dare would know what they are doing > and get used to whatever the commands are called. In fact hardly anybody > uses them as proved by an embarrasing bug I fixed a while ago somewhere in > this area. ;-) They are occasionally useful for stuff like debugging > system bringup issues, weird cache corruption problems and suchlike. This is the sort of thing that makes me wish all our targets used "target remote". MDI isn't the only target interface that offers this sort of thing, and it would be nice to have the enforced abstraction barrier; that would make it easier to support the same thing, consistently, on other targets. Anyway, an example for MDI will be almost as useful in practice. -- Daniel Jacobowitz CodeSourcery