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bekOS

A basic Unix-adjacent Operating System for 64-bit ARM processors written in C++. Not the OS you wanted, but the one you deserve.

Features

  • Multitasking process management
  • DeviceTree parsing on boot and dynamic probing of devices.
  • USB xHCI host driver and peripherals
  • Support for QEMU virt device
  • [WIP] Userspace Windowing Manager
  • [WIP] Support for Raspberry Pi 4/5
  • Symmetric Multiprocessing

Project Layout

.
├─ bek      # Alternative C++ standard library for kernel and userspace
├─ docs     # Unsorted documentation/description
├─ kernel   # Kernel Source
├─ tools    # Scripts for running/testing
└─ userspace
   ├─ libcore   # Core (C++) library (with init + syscalls)
   └─ programs  # Executables for running in bekOS

Running

  1. Install freestanding toolchain (aarch64-none-elf-gcc) and QEMU.
  2. Adapt toolchain-arm.cmake.template for toolchain, and use as -DCMAKE_TOOLCHAIN_FILE=toolchain-arm.cmake.
  3. Configure and build with CMake. Target kernel_with_userspace is recommended.
  4. Run kernel with tools/run-qemu.sh virt <EXECUTABLE>, passing the .img file produced in build directory.