import.c
上传用户:wudi5211
上传日期:2010-01-21
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文件大小:1k
- /*
- * import.c -- a module using a symbol from export.c
- *
- * Copyright (C) 2001 Alessandro Rubini and Jonathan Corbet
- * Copyright (C) 2001 O'Reilly & Associates
- *
- * The source code in this file can be freely used, adapted,
- * and redistributed in source or binary form, so long as an
- * acknowledgment appears in derived source files. The citation
- * should list that the code comes from the book "Linux Device
- * Drivers" by Alessandro Rubini and Jonathan Corbet, published
- * by O'Reilly & Associates. No warranty is attached;
- * we cannot take responsibility for errors or fitness for use.
- *
- */
- #ifndef __KERNEL__
- # define __KERNEL__
- #endif
- #ifndef MODULE
- # define MODULE
- #endif
- /*
- * Use versioning if needed
- */
- #include <linux/config.h> /* retrieve the CONFIG_* macros */
- #ifdef CONFIG_MODVERSIONS
- # undef MODVERSIONS /* it might be defined */
- # define MODVERSIONS
- #endif
- #ifdef MODVERSIONS
- # include <linux/modversions.h>
- # include "export.ver"
- #endif
- #include <linux/module.h>
- #include <linux/kernel.h>
- #include "sysdep.h"
- extern int export_function(int, int);
- int import_init(void)
- {
- int i = export_function(2,2);
- printk("import: my mate tells that 2+2 = %in",i);
- return 0;
- }
- void import_cleanup(void)
- {}
- module_init(import_init);
- module_exit(import_cleanup);