LinuxQuestions.org - Having trouble registering a system call in ubuntu

hi all,

i have kernel hacking assignments as my operating systems course ...i am trying to register a simple system call on ubuntu that simply prints with kprint stmt

Code:

#include <linux/kernel.h>



asmlinkage long sys_cs2456_test(int arg0)

{

  printk(" Hello World !");

  printk("--syscall arg %d", arg0);



  return((long) arg0);

}

i register this call in the following files ... following their syntax strictly:

arch/x86/kernel/syscall_table_32.S
and
arch/x86/include/asm/unistd_32.h

i also update the Makefile for linux with the folder for my sys call ... when i make the kernel it generates the object file but when i test the system call in user space it gives me an error that my system call is not defined.

help!!!!!!!!!!!!!!