From mboxrd@z Thu Jan  1 00:00:00 1970
From: Kristof Provost <Kristof@provost-engineering.be>
Subject: Re: kernel module
Date: Tue, 13 Nov 2007 10:40:52 +0100
Message-ID: <20071113094052.GB10096@berith>
References: <c26b6f110711120559l2c9f9be3wb729a3a770b13ffd@mail.gmail.com>
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To: Rajeh kuri <rajeshkuri@gmail.com>
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Hi,

On 2007-11-12 19:29:17 (+0530), Rajeh kuri <rajeshkuri@gmail.com> wrote:
> Hi,
>=20
> Is there any ways to invoke/call the function (kernel module
> functions) from compiled base kernel. Well that statement sounds
> strange.
>=20
> I will try to simplify that statement, with problem I faced.
> I have written a kernel module but it is of no use till I call one of
> its function from kernel, and hence i modified the kernel source to
> call this function and then compiled the kernel. Now the problem is
> obliviously 'linker cannot resolve the symbol. Because I'm trying to
> call the function which is available only after I insert the kernel
> module.
The problem is that you're calling code compiled as a module from code
compiled into the kernel. That means you either compile both parts as a=20
module, or compile both of them into the kernel.
Kbuild/Kconfig has supports this type of dependency because it's quite
common.

Kristof

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