Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752607AbYJTJwu (ORCPT ); Mon, 20 Oct 2008 05:52:50 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1751240AbYJTJwm (ORCPT ); Mon, 20 Oct 2008 05:52:42 -0400 Received: from e28smtp06.in.ibm.com ([59.145.155.6]:36290 "EHLO e28esmtp06.in.ibm.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1751211AbYJTJwm (ORCPT ); Mon, 20 Oct 2008 05:52:42 -0400 Date: Mon, 20 Oct 2008 15:22:36 +0530 From: "K.Prasad" To: Albert Cahalan Cc: linux-kernel Subject: Re: [RFC Patch 1/9] Introducing generic hardware breakpoint handler interfaces Message-ID: <20081020095236.GA4042@in.ibm.com> Reply-To: prasad@linux.vnet.ibm.com References: <787b0d920810200233v3ccc87bfjab4a4aec510a79cb@mail.gmail.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <787b0d920810200233v3ccc87bfjab4a4aec510a79cb@mail.gmail.com> User-Agent: Mutt/1.5.18 (2008-05-17) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 760 Lines: 20 On Mon, Oct 20, 2008 at 05:33:40AM -0400, Albert Cahalan wrote: > I'd just like to point out that not all hardware breakpoints > involve addresses. For example: > > The OLPC XO uses an x86 processor called the Geode. > It supports a breakpoint that traps based on the opcode. > For example, one could set it to trap on arpl instructions. We should be able to handle such unique requirements by introducing a new type of breakpoints (similar to HW_BREAKPOINT_EXECUTE, HW)BREAKPOINT_WRITE, etc). Thanks, K.Prasad -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/