compiling a module

eltn · 10-21-2004, 09:13 AM

hellow

i tried to compile a simple module

in first i printed

gcc -c hello.c
(created hello.o)

and then

insmod hello.o
(i tried also insmod -f hello.o)
but its printed me an error
hello.o: couldnt find the kernel version the module was compile for?

is anyone know a solution?

sjalex · 10-21-2004, 09:37 AM

uhm! That doesn't look like a kernel module... Is this a program you wrote or what?

Perhaps you should consider dropping the -c flag if you're trying to make an executable...

eltn · 10-21-2004, 10:06 AM

its a module that i wrote

sjalex · 10-22-2004, 08:08 AM

ah, OK, I'm gonna go out on a limb and assume you've not done any kernel development before.

What are you trying to do with this module you wrote? I mean, what is it supposed to do?

eltn · 10-22-2004, 09:32 AM

u r right i dont know mutch about the kernel development

i got a project (from the uni)

this is the project

3. The /proc file system.
(a) Add a file to /proc that will give the number of system calls executed
since the system has been booted. (2)
(b) Add a file to /proc/(pid) directory called \trace" that when read will
give a list of executed system calls by number. (2)

Ojp · 04-01-2006, 07:30 PM

I give you a little code, you need to create a Makefile like this (more info in Documentation/Kbuild/Meakefiles.txt):

obj-m := main.o
sadoo-objs := main.o

When you compile your module, do this:

$make -C (the path of your kernel source) M=$PWD modules

The path of kernel soure must be the same path of the kernel that you use in your system, don't work at all if you use a source that you downloaded. In my case I use the path like this (I have RHEL 4): /usr/src/kernels/2.6.9-5.EL-i686