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commit9cc95f1bf043042559b1ed1c10d00fa0567ce774[log] [tgz]
authorAlexander Richardson <alexrichardson@google.com>Wed Jun 07 12:00:23 2023 -0700
committerTravis Geiselbrecht <travisg@gmail.com>Wed Jun 07 13:27:16 2023 -0700
treebe7bc7b9e6b8c85f1ea9872d276041f0cfd97372
parentc3a5c31aac46aa8c7f211bba2bfe516113fa849f [diff]
Don't notify IRC on pushes to forks
1 file changed
tree: be7bc7b9e6b8c85f1ea9872d276041f0cfd97372
  1. .github/
  2. app/
  3. arch/
  4. dev/
  5. docs/
  6. external/
  7. kernel/
  8. lib/
  9. make/
  10. platform/
  11. project/
  12. scripts/
  13. target/
  14. tools/
  15. top/
  16. .gitignore
  17. engine.mk
  18. LICENSE
  19. lk_inc.mk.example
  20. makefile
  21. README.md
README.md

The Little Kernel Embedded Operating System

The LK kernel is an SMP-aware kernel designed for small systems ported to a variety of platforms and cpu architectures.

See https://github.com/littlekernel/lk for the latest version.

High Level Features

  • Fully-reentrant multi-threaded preemptive kernel
  • Portable to many 32 and 64 bit architectures
  • Support for wide variety of embedded and larger platforms
  • Powerful modular build system
  • Large number of utility components selectable at build time

Supported architectures

  • ARM32
    • Cortex-M class cores (armv6m - armv8m)
    • ARMv7+ Cortex-A class cores
  • ARM64
  • RISC-V 32 and 64bit bit in machine and supervisor mode
  • x86-32 and x86-64 386 up through modern cores
  • microblaze
  • MIPS
  • OpenRISC 1000

TODO

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: for ubuntu x86-64: sudo apt-get install gcc-arm-none-eabi or fetch a prebuilt toolchain from https://newos.org/toolchains/x86_64-elf-10.2.0-Linux-x86_64.tar.xz