Hello world kernel modul

[ daxx @ 01.04.2007. 15:43 ] @

Ćao...

Pokušavam da kompajliram ovaj jednostavan modul (kod je iz knjige Linux Device Drivers):

Code:

#include <linux/init.h>
#include <linux/module.h>
MODULE_LICENSE("Dual BSD/GPL");

static int hello_init(void)
{
    printk(KERN_ALERT "Hello, world\n");
    return 0;
}
static void hello_exit(void)
{
    printk(KERN_ALERT "Goodbye, cruel world\n");
}

module_init(hello_init);
module_exit(hello_exit);

Međutim, gcc se nešto ljuti:

Citat:

root@1[Desktop]# gcc hello.c
In file included from /usr/include/linux/sched.h:16,
from /usr/include/linux/module.h:9,
from hello.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/resource.h:4,
from /usr/include/linux/sched.h:79,
from /usr/include/linux/module.h:9,
from hello.c:2:
/usr/include/linux/time.h:9: error: redefinition of 'struct timespec'
/usr/include/linux/time.h:15: error: redefinition of 'struct timeval'
/usr/include/linux/time.h:20: error: redefinition of 'struct timezone'
/usr/include/linux/time.h:47: error: redefinition of 'struct itimerval'
In file included from hello.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
hello.c: In function 'hello_init':
hello.c:7: error: 'KERN_ALERT' undeclared (first use in this function)
hello.c:7: error: (Each undeclared identifier is reported only once
hello.c:7: error: for each function it appears in.)
hello.c:7: error: syntax error before string constant
hello.c: In function 'hello_exit':
hello.c:12: error: 'KERN_ALERT' undeclared (first use in this function)
hello.c:12: error: syntax error before string constant

Šta nije u redu? Pretpostavljam da nisam lepo postavio hedere ili nešto slično, ali prilično sam nov u Linux svetu i nisam baš suviše vešt...
Inače, koristim SimplzMEPIS 6.0, a verzija kernela je 2.6.15-26-386.

Hvala unapred.
Dare

EDIT: Čini mi se da u knjizi piše da sami hederi nisu dovoljni, već da mi treba ispravno konfigurisan kernel tree. O čem' se radi?

_{[Ovu poruku je menjao daxx dana 01.04.2007. u 18:54 GMT+1]}