LeOS

A WIP x86_64 hobby operating system made in C and Assembly.

1. Why this project?

Why not? I like challenges so I wanted to give my shot at creating an operating system. I want to have deeper insights on how computers work and create projects to sharpen my skills and abilities.

2. Compiling

Before compiling you need:

• a GCC cross compiler(x86_64)
• NASM
• internet connection

An internet connection is needed to download needed dependencies.

It is assumed your toolchain is in /usr/local/gcc-cross. To use a toolchain in a different path change PREFIX and TOOLCHAINPREFIX variables like so:

make targetHere PREFIX=yourPathHere TOOLCHAINPREFIX=yourPrefixHere

By default they are set like so: PREFIX=/usr/local/gcc-cross TOOLCHAINPREFIX=x86_64-elf-

2.1 Generating OS images

By running the following commands everything will be compiled and included in the os image.

To generate a .iso image:

make all

To generate a .hdd image:

make all-hdd

2.2 Compiling only the kernel

From the main project directory:

make kernel

or from the kernel directory run:

make