linux compile source to ko(kernel object) successfully!

来源：互联网发布：linux安装分区方案编辑：程序博客网时间：2024/05/18 17:04

source:

#include <linux/module.h>#include <linux/kernel.h>#include <linux/init.h>//模块许可证声明（必须）MODULE_LICENSE("Dual BSD/GPL");//模块加载函数（必须）static int hello_init(void){    printk(KERN_ALERT "Hello World enter\n");    return 0;}//模块卸载函数（必须）static void hello_exit(void){    printk(KERN_ALERT "Hello World exit\n");}//模块的注册module_init(hello_init);module_exit(hello_exit);//声明模块的作者（可选）MODULE_AUTHOR("xiuye");//声明模块的描述（可选）MODULE_DESCRIPTION("This is a simple example!/n");//声明模块的别名（可选）MODULE_ALIAS("A simplest example");

Makefile:(note: UpperCase first letter file name)

obj-m += hello_linux_module.oall:$(MAKE) -C /lib/modules/$(shell uname -r)/build M=$(PWD) modulesclean:$(MAKE) -C /lib/modules/$(shell uname -r)/build M=$(PWD) clean

terminal:

make

sudo insmod ./hello_linux_module.ko

lsmod | grep hello

unregister ko file

sudo rmmod ./hello_linux_module.ko

have a look at "ko" output:

 tail /var/log/kern.log

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