From mboxrd@z Thu Jan  1 00:00:00 1970
From: j.neuschaefer@gmx.net (Jonathan =?utf-8?Q?Neusch=C3=A4fer?=)
Date: Wed, 29 Jun 2011 22:42:31 +0200
Subject: Debugging a custom kernel
In-Reply-To: <20110629201441.GF5604@hermes>
References: <20110629201441.GF5604@hermes>
Message-ID: <20110629204231.GC1510@debian.debian>
To: kernelnewbies@lists.kernelnewbies.org
List-Id: kernelnewbies.lists.kernelnewbies.org

On Wed, Jun 29, 2011 at 10:14:41PM +0200, Apelete Seketeli wrote:
> Hello,
> 
> I am working on a custom kernel, and I would like to add the necessary
> support to enable it to boot with qemu. In order to achieve that I am
> trying to debug it inside qemu by attaching a gdb to it. I still can't
> figure where the boot process is getting stuck with step-by-step
> execution, but it seems that the last function called is "delay_loop"
> from arch/x86/lib/delay.c.
> That function contains some assembly code, does someone know what it
> is supposed to do ?
> Beside, do you have any advice on the way I should proceed to get the
> necessary information to port the kernel ? 

Does a stock kernel work in your setup?
If so, try using its config, most distributions put it into /boot as
config-`uname -r` or something.

HTH,
	Jonathan Neusch?fer