/*                                                      * $Id: hello.c,v 1.10 2001/07/17 10:30:02 rubini Exp $  */                                                    #ifndef __KERNEL__# define __KERNEL__#endif#ifndef MODULE# define MODULE#endif#include <linux/module.h>EXPORT_NO_SYMBOLS;//EXPORT_SYMTAB;//EXPORT_SYMBOL (redflag);//EXPORT_SYMBOL_NOVERS (redflag);MODULE_AUTHOR("redflag nankai university");MODULE_DESCRIPTION("Hello world!");MODULE_LICENSE("GPL");/*                                                         * These lines, although not shown in the book,            * are needed to make hello.c run properly even when       * your kernel has version support enabled                 */                                                                                                                 int init_module(void)      { printk("<1>Hello, world\n"); return 0; }void cleanup_module(void)  { printk("<1>Goodbye cruel world\n"); }