linux-kernel - Re: changing internal kernel system mechanism in runtime by a module patch

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Message-ID: <20061116131243.1f4d6ccd@freekitty>
Date:	Thu, 16 Nov 2006 13:12:43 -0800
From:	Stephen Hemminger <shemminger@...l.org>
To:	linux-kernel@...r.kernel.org
Subject: Re: changing internal kernel system mechanism in runtime by a
 module patch

On Thu, 16 Nov 2006 21:19:50 +0200
"Yitzchak Eidus" <ieidus@...il.com> wrote:

> is it possible to replace linux kernel internal functions such as
> schdule () to lets say my_schdule ()  in a run time with a module
> patch???
> (so that every call in the kernel to schdule() will go to my_schdule()... ) ???
> 
> i am talking about a clean/standard way to do such thing
> (without overwrite the mem address of the function and replace it in a
> dirty way...)
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Look at kprobe/jprobe.

-- 
Stephen Hemminger <shemminger@...l.org>
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