brenns10 / sos
This is my personal operating system project. It targets the 32-bit ARMv7-A architecture. The main target board is qemu, but progress is being made on the Raspberry Pi 4B target! Despite being very imited, this one-person project has actually made a great deal of progress and continues to improve.
To build and run this, you need two important pieces of software: QEMU 4.2+, and an ARM cross compiler. These dependencies are straightforward on Arch Linux, but Ubuntu users should see more detailed setup instructions in Ubuntu.md.
This OS is growing support for the Raspberry Pi 4B. So far, SOS can boot into a simple kernel shell (which is not backed by kernel threads or a scheduler yet). For more information on setup and running, see [docs/RaspberryPi.md][].
This is a shell running as a user-space process. It has very few features, except to launch rudimentary processes. The best demonstration of what the OS can do is to look at the output of the "demo" command. The "demo" command starts up 10 instances of the same program, which looks like this:
