urgent ! program compiling errors

[sagitalk]

i am trying to compile the following program named dd.c:


#include <module.h>
#include<kernel.h>
#include<mod_devicetable.h>
#include<moduleparam.h>
#include<moduleloader.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 am getting the following errors:

In file included from /usr/include/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/module.h:41: error: field ‘attr’ has incomplete type
/usr/include/module.h:42: error: expected specifier-qualifier-list before ‘ssize_t’
/usr/include/module.h:49: error: field ‘kobj’ has incomplete type
/usr/include/module.h: In function ‘search_module_extables’:
/usr/include/module.h:433: error: ‘NULL’ undeclared (first use in this function)
/usr/include/module.h:433: error: (Each undeclared identifier is reported only once
/usr/include/module.h:433: error: for each function it appears in.)
/usr/include/module.h: In function ‘module_text_address’:
/usr/include/module.h:439: error: ‘NULL’ undeclared (first use in this function)
/usr/include/module.h: In function ‘__module_text_address’:
/usr/include/module.h:445: error: ‘NULL’ undeclared (first use in this function)
/usr/include/module.h: In function ‘module_address_lookup’:
/usr/include/module.h:476: error: ‘NULL’ undeclared (first use in this function)
/usr/include/module.h: In function ‘module_get_kallsym’:
/usr/include/module.h:484: error: ‘NULL’ undeclared (first use in this function)
In file included from dd.c:6:
/usr/include/moduleloader.h: At top level:
/usr/include/moduleloader.h:11: error: expected ‘)’ before ‘*’ token
/usr/include/moduleloader.h:25: error: expected ‘)’ before ‘*’ token
/usr/include/moduleloader.h:33: error: expected ‘)’ before ‘*’ token
/usr/include/moduleloader.h:40: error: expected ‘;’, ‘,’ or ‘)’ before ‘*’ token


have tried installing all sorts of kernel-devel pakages but nothing seems to work
i cannot understand that module.h being such a common file why is it not being properly recognised ...........i am stuck with this problem for over a week now........kindly guide me.........

[gerard4143]

try #include <linux/module.h>
and #include <linux/kernel.h>

if this doesn't work could you post your makefile..Thanks Gerard4143

Just curiosity...what so urgent about a "hello world" kernel module....

[MikeTbob]

Just curiosity...what so urgent about a "hello world" kernel module....

I'm curious too, what's the purpose of a "hello world" kernel module?