Clone this repo:
  1. b8f0ea8 Move containerof from lk/list.h to lk/macros.h. by Nick Bray · 3 weeks ago master
  2. b32b4a3 [lib][libc] Add a few standard functions to endian.h. by Nick Bray · 3 weeks ago
  3. b269d09 Remove unneeded libraries in lib/ directory. by Nick Bray · 5 weeks ago
  4. 15f4bd9 [arch][x86] Update Clang toolchain settings by Zhong,Fangjian · 8 months ago
  5. 74023f6 Blacklist variable-length arrays. by Nick Bray · 6 weeks ago


The LK embedded kernel. An SMP-aware kernel designed for small systems.

See for the latest version.

See for documentation.


Build Status

To build and test for ARM on linux

  1. install or build qemu. v2.4 and above is recommended.
  2. install gcc for embedded arm (see note 1)
  3. run scripts/do-qemuarm (from the lk directory)
  4. you should see ‘welcome to lk/MP’

This will get you a interactive prompt into LK which is running in qemu arm machine ‘virt’ emulation. type ‘help’ for commands.

note 1: for ubuntu: sudo apt-get install gcc-arm-none-eabi or fetch a prebuilt toolchain from