tlwiki/Hello World.wiki

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2017-01-04 21:40:01 +00:00
= Hello World =
=== Eudyptula Challenge: Task 1 ===
== Task Description ==
{{{
This is Task 01 of the Eudyptula Challenge
------------------------------------------
Write a Linux kernel module, and stand-alone Makefile, that when loaded
prints to the kernel debug log level, "Hello World!" Be sure to make
the module able to be unloaded as well.
The Makefile should be able to build the kernel module against the
source of the currently-running kernel as well as being able to accept
an arbitrary kernel sources directory from an environment variable.
Please show proof of this module being built, and running, in your
kernel. What this proof is is up to you. I'm sure you can come up with
something. Also be sure to send the kernel module you wrote, along with
the Makefile you created to build the module.
}}}
== Breakdown ==
* [X] Create Module that prints `Hello World!` to the kernel debug log level
* [X] Create Makefile to build your module
* [ ] Provide proof of this module being built and running in your kernel
== Notes ==
2017-01-17 23:29:12 +00:00
* `#include <linux/module.h>` Needed by all modules
* `#include <linux/kernel.h>` Needed for KERN_INFO
* `#include <linux/init.h>` Macros used to mark up functions e.g., __init __exit
*