On Thu, 2003-07-10 at 11:10, Christophe Lucas wrote:
>
> I am sure it is loaded, because of I can see entry "titux" in /proc.
>
> As another people asks, I put the code. It is really simple. It make an
> oops(when I do a: cat /proc/titux), but my problem isn't there for the time.
> Yet, I have done the test with an hello world mdoule without
> MODULE_LICENCE and I have had the same result.
>
> /* proc_test.c */
> #include <linux/module.h>
> #include <linux/proc_fs.h>
>
> #define MODVERSIONS
>
> MODULE_LICENSE( "GPL" );
> MODULE_AUTHOR( "titux" );
>
> static int titux_read_proc( char *buf , char **start, off_t offset,
> int count, int *eof , void *data )
> {
> int len = 0 ;
>
> buf = kmalloc( 128 , GFP_USER ) ;
> len += sprintf( buf + len, "current pid: %i\n", current->pid );
> *eof = 1 ;
> return len ;
> }
>
> void init_module()
Should return an int here
> {
> printk( "proc_test loaded... ok");
> create_proc_read_entry( "titux", 0, NULL, titux_read_proc , NULL ) ;
> }
>
> void cleanup_module()
> {
> printk( "proc_test unloaded... ok" );
> remove_proc_entry( "titux", NULL );
> }
Here is a fairly minimal module that works that you may wish to copy.
===================================
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/init.h>
#define MODVERSIONS
MODULE_LICENSE( "GPL" );
int __init my_init(void) {
printk("hello\n");
return 0;
}
void __exit my_exit(void) {
printk("by\n");
}
module_init(my_init);
module_exit(my_exit);
================================
# gcc -D__KERNEL__ -DMODULE -I/path/to/kernel/src/include -O -Wall -o
foo.o -c foo.c
# insmod foo.o
hello
# rmmod foo
by
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