(kernel 2.6.9) insmod: -1 Invalid module format

[Stephane Coulombe Bisson]

Hi,

I'm new to Linux module dev, I copied a very simple module from a book
(http://lwn.net/Kernel/LDD2/ch02.lwn) and I can't insert it into the
kernel.

I found hundreds of bug reports about it on google without any solution.
I must be doing something wrong... 

/*----------mymodule.c-----------*/
#define MODULE
#include <linux/module.h>
int init_module(void)  
{ printk("<1>Hello, world\n"); return 0; }
void cleanup_module(void) 
{ printk("<1>Goodbye cruel world\n"); }
/*----------EOF-----------*/

# gcc -c mymodule.c
# insmod mymodule.o
insmod: error inserting 'mymodule.o': -1 Invalid module format


Thanks a lot

steph

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