mirror of
https://github.com/gatieme/LDD-LinuxDeviceDrivers.git
synced 2026-08-18 17:17:39 +08:00
48 lines
1.0 KiB
Plaintext
48 lines
1.0 KiB
Plaintext
#include <linux/module.h>
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#include <linux/kernel.h>
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#include <linux/init.h>
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#include <linux/sched.h>
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//#include <linux/list.h>
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//#include <linux/mm.h>
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//#include <linux/mm_types.h>
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MODULE_LICENSE("Dual BSD/GPL");
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MODULE_AUTHOR("Gatieme");
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MODULE_DESCRIPTION("hello world");
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/*
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* print the module information
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*/
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static void print_module(void)
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{
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struct module *mod;
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printk(KERN_ALERT "this module: %p==%p\n", &__this_module, THIS_MODULE);
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printk(KERN_ALERT "module state: %d\n", THIS_MODULE->state);
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printk(KERN_ALERT "module name: %s\n", THIS_MODULE->name);
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list_for_each_entry(mod, *(&THIS_MODULE->list.prev), list);
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printk(KERN_ALERT "module name: %s\n", mod->name);
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printk(KERN_ALERT "module state: %d\n", THIS_MODULE->state);
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}
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static int hello_init(void)
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{
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print_module();
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printk(KERN_ALERT "run in cpu %d\n", get_cpu());
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printk(KERN_ALERT "PAGE_OFFSET : 0x%lx, TASK_SIZE : 0x%lx", PAGE_OFFSET,
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TASK_SIZE);
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return 0;
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}
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static void hello_exit(void)
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{
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printk(KERN_ERR "exit");
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}
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module_init(hello_init);
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module_exit(hello_exit);
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