OpenSillicon

a small x86_64 operating system built from the ground up.

opensillicon is an experimental unix-like operating system with a modular monolithic kernel and a native userspace.

• ring 3 processes, elf loading, fork/exec/wait, preemptive scheduling, virtual mem, shared mem, signals, pipes, and file descriptors.
• vfs with ramfs, initramfs, devfs, procfs, and the native SilliconFS.
• f/b terminal, ps/2 keyboard, shell, and core utilities.
• native libos runtime.
• tinyx session with twm, xterm, and xeyes.
• network stack components for ethernet, arp, ipv4, icmp, udp, and tcp.

on a linux x86_64 host, install gcc, gnu binutils, gnu make, py3, qemu-x86 and xorriso, then run:

make
make run       # serial console
make run-gui   # graphical display

• kernel/ - kernel, architecture code, drivers, filesystems, and networking.
• user/ - init, shell, utilities, libos, and xorg components.
• include/ - kernel and userspace abi headers.
• tests/ - host and qemu test harnesses.
• tools/ - image and filesystem build tools.

project code is available under the BSD 2-Clause License. Vendored and third-party components retain their respective licenses.