From mboxrd@z Thu Jan  1 00:00:00 1970
Received: from [140.186.70.92] (port=49547 helo=eggs.gnu.org)
	by lists.gnu.org with esmtp (Exim 4.43) id 1Pa4Z0-0003YT-PZ
	for qemu-devel@nongnu.org; Tue, 04 Jan 2011 05:56:27 -0500
Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71)
	(envelope-from <weil@mail.berlios.de>) id 1Pa4Yz-0006V3-M8
	for qemu-devel@nongnu.org; Tue, 04 Jan 2011 05:56:26 -0500
Received: from moutng.kundenserver.de ([212.227.126.186]:52210)
	by eggs.gnu.org with esmtp (Exim 4.71)
	(envelope-from <weil@mail.berlios.de>) id 1Pa4Yz-0006U9-9w
	for qemu-devel@nongnu.org; Tue, 04 Jan 2011 05:56:25 -0500
Message-ID: <4D22FCD2.2080505@mail.berlios.de>
Date: Tue, 04 Jan 2011 11:56:18 +0100
From: Stefan Weil <weil@mail.berlios.de>
MIME-Version: 1.0
Subject: Re: [Qemu-devel] HELP PLEASE! Consecutive runs of qemu-user
References: <4D1F9D33.6070805@gmail.com>
In-Reply-To: <4D1F9D33.6070805@gmail.com>
Content-Type: text/plain; charset=ISO-8859-1; format=flowed
Content-Transfer-Encoding: 7bit
List-Id: qemu-devel.nongnu.org
List-Unsubscribe: <http://lists.nongnu.org/mailman/listinfo/qemu-devel>,
	<mailto:qemu-devel-request@nongnu.org?subject=unsubscribe>
List-Archive: <http://lists.nongnu.org/archive/html/qemu-devel>
List-Post: <mailto:qemu-devel@nongnu.org>
List-Help: <mailto:qemu-devel-request@nongnu.org?subject=help>
List-Subscribe: <http://lists.nongnu.org/mailman/listinfo/qemu-devel>,
	<mailto:qemu-devel-request@nongnu.org?subject=subscribe>
To: Stefano Bonifazi <stefboombastic@gmail.com>
Cc: QEMU Developers <qemu-devel@nongnu.org>

Am 01.01.2011 22:31, schrieb Stefano Bonifazi:
> Hi!
>  First of all Happy new year to everybody! :) Wish you all to realize 
> all your dreams! :)
> I edited QEMU user, more exactly qemu-ppc launching the main function 
> (inside main.c) from another c function I created, passing it the 
> appropriate parameters.
> I also caught the syscall 1 preventing it to abort the process, and 
> simply returning from cpu_loop function, so that this function is not 
> more endless, and main returns to my user defined function.
> The problem is that launching a second time main with other parameters 
> fails: leaving the code like it was, the previous translated binary 
> was kept "in memory" and run again, no matter what binary parameter I 
> passed to main.
> I added then tb_flush(env); after cpu_loop inside main..
> But with this edit launching main with other parameters blocks the 
> execution at tcg_qemu_tb_exec(tc_ptr); ..It sounds like QEMU stores 
> the state of the translation even after main function is over :(
> Is it possible to reset completely the state, allowing consecutive 
> runs of different binaries?
> What are the state variables I should "clean" between different runs?
> Thank you very much for your help!
> Best regards!
> Stefano B.

Hi Stefano,

maybe 'qemu -singlestep' helps.

Regards,
Stefan W.