From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 16392 invoked by alias); 24 Mar 2011 16:26:39 -0000 Received: (qmail 16335 invoked by uid 22791); 24 Mar 2011 16:26:36 -0000 X-SWARE-Spam-Status: No, hits=-1.9 required=5.0 tests=AWL,BAYES_00,DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,FREEMAIL_FROM,RCVD_IN_DNSWL_NONE,TW_QE X-Spam-Check-By: sourceware.org Received: from mail-vx0-f175.google.com (HELO mail-vx0-f175.google.com) (209.85.220.175) by sourceware.org (qpsmtpd/0.43rc1) with ESMTP; Thu, 24 Mar 2011 16:26:32 +0000 Received: by vxd7 with SMTP id 7so141174vxd.20 for ; Thu, 24 Mar 2011 09:26:31 -0700 (PDT) MIME-Version: 1.0 Received: by 10.52.90.70 with SMTP id bu6mr4074615vdb.88.1300983991356; Thu, 24 Mar 2011 09:26:31 -0700 (PDT) Received: by 10.52.164.41 with HTTP; Thu, 24 Mar 2011 09:26:31 -0700 (PDT) In-Reply-To: References: Date: Thu, 24 Mar 2011 17:11:00 -0000 Message-ID: From: Drasko DRASKOVIC To: Grant Edwards Cc: ecos-discuss@sources.redhat.com Content-Type: text/plain; charset=ISO-8859-1 X-IsSubscribed: yes Mailing-List: contact ecos-discuss-help@ecos.sourceware.org; run by ezmlm Precedence: bulk List-Id: List-Subscribe: List-Archive: List-Post: List-Help: , Sender: ecos-discuss-owner@ecos.sourceware.org Subject: Re: [ECOS] Re: HOWTO: eCos on QEMU PC emulator X-SW-Source: 2011-03/txt/msg00108.txt.bz2 On Thu, Mar 24, 2011 at 3:20 PM, Grant Edwards wrote: > On 2011-03-24, Drasko DRASKOVIC wrote: > >> Several months ago I was looking for a way to run eCos and above all >> RedBoot on Qemu-ARM. None of the boards supported by eCos seems to be >> present in qemu, and vice versa. > > I looked into that a year or two back and came to the same conclusion. > It probably woldn't be hard to port eCos to one of the boards that is > supported by Qemu, but I didn't see much point in that when it runs on > the 386 Qemu target. Point is that writing eCos applications is relatively easy task comparing to low-level porting. Any student can use eCos native Linux synthetic target (http://ecos.sourceware.org/ecos/boards/linuxsynth.html) and write eCos application for PC. However, when you want to study kernel internals, to change boot code and HAL, to do low-level system programming you are obliged to have real hardware. And that sucks with eCos - because there are no good emulators nor simulators for the worlds most popular architectures like ARM or MIPS. You take UBoot, Linux or any other bigger similar project - works out of the box with qemu-system-XXX, and it is a pleasure and a joy to learn. It would be great if we could have something like this with eCos. BR, Drasko -- Before posting, please read the FAQ: http://ecos.sourceware.org/fom/ecos and search the list archive: http://ecos.sourceware.org/ml/ecos-discuss