#WRITING KERNEL MODULES LINUX C LICENSE#

Basically we are building against the current kernel.

# -directory (or the more used -C) - switches to the kernel directory before performing any make tasks # `uname -kernel-release` returns the current kernel version. # the file should match the name of the C file # This is the Makefile for my Linux Kernel Module (LKM) # Author: Nik Alleyne # Blog: # File: Makefile # The following line is the only one which is truly required. Now tell the system which module to load upon initialization

Printk(KERN_INFO ' LEAVING!! I've had enough of this. Basically what the LKM does upon exit static void _exit hello_exit( void) If a non-zero value is returned it more than likely means an error occurred while loading return 0 Printk(KERN_INFO ' ENTERING!! Welcome to SecurityNik LKM World! ') Basically what the LKM does at startup static int _init hello_init( void) MODULE_AUTHOR( 'Nik Alleyne - MODULE_DESCRIPTION( 'My First Linux Kernel Module (LKM)')

#WRITING KERNEL MODULES LINUX C LICENSE#

License choice impacts the way the kernel treats your module. * * This is my first crack at writing a Linux Kernel Module (LKM) * Author: Nik Alleyne * Blog: * File: helloWorld.c */ // Let the system know we are part of the kernel // #define _KERNEL_ // Let the system know we are not a permanent part of the kernel // #define MODULE // init.h needed for entry and exit macros #include // Remember every module needs module linux/module.h #include // kernel.h is needed for printk() in this example #include // Specify the license information.

Writing kernel modules linux c