Compiling Linux kernel - hello world

Question

I am trying to compile the Linux kernel: http://tldp.org/LDP/lkmpg/2.6/html/lkmpg.html

I have a simple hello world program hello-1.cpp

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

int init_module(void)
{
    return 0;
}

void cleanup_module(void)
{
}

But I am trying to build it using the Makefile:

obj-m += hello-1.o

all:
make -C /lib/modules/$(shell uname -r)/build M=$(PWD) modules

clean:
make -C /lib/modules/$(shell uname -r)/build M=$(PWD) clean

I get a couple of errors.

make -C /home/pacman/linux-2.6.34.11/2.6.35.6-45.fc14.i686/build M=/home/pacman/p1 modules
make: *** /home/pacman/linux-2.6.34.11/2.6.35.6-45.fc14.i686/build: No such file or directory.  Stop.

make: * [all] Error 2

Am I forgetting to define something?

Answer 1

Rename hello-1.cpp to hello-1.c (modules must be written in C) and add the lines:

module_init(init_module);
module_exit(cleanup_module);