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android / kernel / lk / ba349e45de475a356e0a1bfccadd8610d49e2943
commitba349e45de475a356e0a1bfccadd8610d49e2943[log] [tgz]
authorDmitrii Merkurev <dimorinny@google.com>Mon Nov 27 01:23:14 2023 +0000
committerDmitrii Merkurev <dimorinny@google.com>Mon Nov 27 01:23:14 2023 +0000
treee00fd6189485ac311ab2a4c085d5bd4f47bfd119
parentb3a8f3b31ac5960183bec60edbb57754f426396c [diff]
parent94a15119b2fe50a076f73e502566895e357b77ff [diff]
Merge 11.2023 lk upstream master

Bug: 291553072
Change-Id: I41c563c43e0da26d28f33ef39ef059d66b8fceb8
Signed-off-by: Dmitrii Merkurev <dimorinny@google.com>
tree: e00fd6189485ac311ab2a4c085d5bd4f47bfd119
  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