Re: Compiling Kernel Modules against the Kernel Source Tree

[Lukas Ruf <ruf@rawip.org>]

Christoph,

Christoph Wirz <cwirz@gmx.net> [2003-06-06 11:08]:

> Hello,
>
> I have redhat 9.0 with kernel 2.4.20-8 running and the
> kernel-source-2.4.20-8.i386.rpm installed. The source tree is under
> /usr/linux-2.4/
>
> When I compile a module against the source tree and want to insert
> it thereafter, I get the following message:
>
> root@tuerli dd]# /sbin/insmod ./hello-1.o ./hello-1.o: kernel-module
> version mismatch ./hello-1.o was compiled for kernel version 2.4.20
> while this kernel is version 2.4.20-8.
>
> with /sbin/insmod -f ./hello-1.o it works.
>
> My attempt:
> --------------------------------------------------------------------
> I recompiled the kernel and gave it an custom name. Result: The
> problem persisted. Only when I recompiled the kernel and gave it
> the name:  2.4.20 . The /sbin/insmod command worked properly. My
> conclusion: There must be a silly version check arround about which
> I dont' know and which only compares strings.
>
> My questions:
> --------------------------------------------------------------------
>       -How can I compile the module that this warning doesn't occur
>
>          anymore(because source-tree and compiled kernel in my
> machine are the same, they only have different names.)  -Is there a
> command arround to determine the source tree's
>
>       version?  -How does the gcc-compiler know where to look for
> the kernel header files? Is there a Environment Variable which
> determines that? Is there a default location?
>

would you mind sending us/me the gcc-settings that you used for
compiling the module?

wbr,
Lukas
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Lukas Ruf           | Wanna know anything about raw |
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