CoraxOS

CoraxOS is a hobbyist kernel built to better understand how operating systems work.

Features

Memory Management
Partial libc implementation (see acknowledgement for parts that were copied)
Signals
Command line arguments
Processes and kernel/user threads
Rudimentary VFS
Ramfs
SDL library port (see https://github.com/coraxos/SDL)
Runs DOOM

Building

Run the do-build.sh script which will create the cmake files in the "build" folder and build the project
cd into the build folder and run "make"

TODO

SMP
Rework the filesystem to better handle disk fs
Set proper errorno on syscall failure
Implement more signals that do stuff (currently only SIGALRM)
Get rid of all the //TODO in the code

Acknowledgement

Special thanks to http://github.com/arjun024/mkernel, whose code was used to start writing the kernel

skiftOS for the design inspiration and the toolchain compiler scripts

toaruos for how to port sdl and DOOM to a new OS

MUSL. The ctype and math code in libc were copied from here.

Standalone-printf. I had a printf implementation, but decided to use this one to save time creating libc.