====== Debugging ======

Especially in the early stages of development, debugging an operating system can be pretty challenging. In this article, we will look at a few debugging techniques.

===== Logging =====

Every OS developer will begin his journey by writing something like //"Hello world"// to the screen. Printing text on the screen is one of the most basic debugging techniques; seeing a specific message can tell us whether that piece of code has been executed or not.

==== Printing formatted text ====

TODO: How to implement printf.

==== Designing a logging system ====

TODO

==== Sending text to the host ====

TODO

==== Serial output ====

TODO

===== Debuggers =====

==== Linker generated map files ====

==== Disassembling ====

==== Debugging symbols ====

==== GDB + Qemu ====

==== Bochs ====

==== VirtualBox (?) ====

==== VMWare (?) ====

===== Other debugging hacks =====

==== Infinite loops ====

===== See also =====

===== References =====