missing headers

[sagitalk]

i am trying to write a simple device driver

filename:dd.c

#include <linux/module.h>
#include<linux/kernel.h>
#include<sys/resource.h>
#include<signal.h>

int init_module (void) /* Loads a module in the kernel */
{
printk("Hello kernel n");
return 0;
}

void cleanup_module(void) /* Removes module from kernel */
{
printk("GoodBye Kerneln");
}



i compiled it as follows: gcc -c dd.c


i am getting the following errors:

In file included from /usr/include/linux/sched.h:16,
from /usr/include/linux/module.h:9,
from dd.c:2:
/usr/include/linux/signal.h:2:2: warning: #warning "You should include <signal.h>. This time I will do it for you."
In file included from /usr/include/linux/sched.h:79,
from /usr/include/linux/module.h:9,
from dd.c:2:
/usr/include/linux/resource.h:2:2: warning: #warning "You should include <sys/resource.h>. This time I will do it for you."
In file included from /usr/include/linux/module.h:10,
from dd.c:2:
/usr/include/linux/cache.h:5:23: error: asm/cache.h: No such file or directory
In file included from dd.c:2:
/usr/include/linux/module.h:41: error: field ‘attr’ has incomplete type
/usr/include/linux/module.h:49: error: field ‘kobj’ has incomplete type



please help me out

[sagitalk]

i tried the following

yum -y install gcc gcc-c++ kernel-devel

but still the problem persists

i am using 2.6.18-8.el5 redhat enterprise linux

then i downloaded linux-libc-headers-2.6.12.0.tar.bz2

i extracted the package and copy pasted the contents of
linux-libc-headers-2.6.12.0/include/linux to /usr/include/linux

but still it doesnt work