From mboxrd@z Thu Jan  1 00:00:00 1970
Received: from [140.186.70.92] (port=57955 helo=eggs.gnu.org)
	by lists.gnu.org with esmtp (Exim 4.43) id 1PQajp-0004GV-A0
	for qemu-devel@nongnu.org; Thu, 09 Dec 2010 02:16:26 -0500
Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71)
	(envelope-from <pbonzini@redhat.com>) id 1PQajo-0003xr-2j
	for qemu-devel@nongnu.org; Thu, 09 Dec 2010 02:16:25 -0500
Received: from mx1.redhat.com ([209.132.183.28]:47804)
	by eggs.gnu.org with esmtp (Exim 4.71)
	(envelope-from <pbonzini@redhat.com>) id 1PQajn-0003xf-Oj
	for qemu-devel@nongnu.org; Thu, 09 Dec 2010 02:16:23 -0500
Message-ID: <4D008246.9070500@redhat.com>
Date: Thu, 09 Dec 2010 08:16:22 +0100
From: Paolo Bonzini <pbonzini@redhat.com>
MIME-Version: 1.0
References: <4CFF6E8F.7000300@gmail.com>
	<1291812551-12590-1-git-send-email-pbonzini@redhat.com>
	<4CFFFC1A.1090001@gmail.com>
In-Reply-To: <4CFFFC1A.1090001@gmail.com>
Content-Type: text/plain; charset=ISO-8859-1; format=flowed
Content-Transfer-Encoding: 7bit
Subject: [Qemu-devel] Re: [PATCH] fix qruncom compilation problems
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-devel@nongnu.org

On 12/08/2010 10:43 PM, Stefano Bonifazi wrote:
> I've linked qemu-malloc.o and cutils.o together with qruncom.c and I
> managed to succesfully make it!
> here the make line:
>> #$(MAKE) -C ../i386-linux-user libqemu.a
>> $(CC) $(CFLAGS) -fomit-frame-pointer $(LDFLAGS) -I../target-i386 -I..
>> -I../linux-user -I../i386-linux-user -I../fpu \
>> -o $@ ../qemu-malloc.o ../cutils.o $(filter %.c, $^)
>> -L../i386-linux-user -lqemu -lm
>
> Anyway running it with a com file as argument gave the error:
>> mmap: Operation not permitted
> I think the problem is with "MAP_FIXED" parameter in mmap
> (http://opengroup.org/onlinepubs/007908799/xsh/mmap.html) having chosen
> 0x00000000 as starting address.. but it is pretty difficult for me atm
> to understand it, I've never used this function before and I am a
> beginner in these topics
> Removing that parameter mmap succeeds, but then I get "segmentation
> fault" in cpu_init

You have to run it as root I think.

Paolo