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/*
* kdatasize.c -- print the size of common data items from kernel space
* This runs with any Linux kernel (not any Unix, because of <linux/types.h>)
*
* 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.
*/
#include <linux/config.h>
#include <linux/module.h>
#include <linux/kernel.h>
#include <linux/types.h>
#include <linux/utsname.h>
#include <linux/errno.h>
static void data_cleanup(void)
{
/* never called */
}
int data_init(void)
{
/* print information and return an error */
printk("arch Size: char short int long ptr long-long "
" u8 u16 u32 u64\n");
printk("%-12s %3i %3i %3i %3i %3i %3i "
"%3i %3i %3i %3i\n",
system_utsname.machine,
(int)sizeof(char), (int)sizeof(short), (int)sizeof(int),
(int)sizeof(long),
(int)sizeof(void *), (int)sizeof(long long), (int)sizeof(__u8),
(int)sizeof(__u16), (int)sizeof(__u32), (int)sizeof(__u64));
return -ENODEV;
}
module_init(data_init);
module_exit(data_cleanup);
MODULE_LICENSE("Dual BSD/GPL");
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