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commit1eb99171efae98867d4be4a5bd6479ea03f43ac9[log] [tgz]
authorDmitrii Merkurev <dimorinny@google.com>Fri May 17 13:40:06 2024 +0100
committerDmitrii Merkurev <dimorinny@google.com>Fri May 17 13:40:06 2024 +0100
treedf82dcf2cf6c29319d9df1e2483843b1974efb65
parentdfd9d57ca99d49f296189de8728b81b94ed2e16a [diff]
use common python toolchain

Bug: 291553072
Test: ./tools/bazel run //lk:qemu_riscv64_dist
Change-Id: I2a3f2948769db8fa3cf196c6350c980b9c1f33fd
Signed-off-by: Dmitrii Merkurev <dimorinny@google.com>
2 files changed
tree: df82dcf2cf6c29319d9df1e2483843b1974efb65
  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. bazel.sh
  18. bazel.WORKSPACE
  19. BUILD
  20. engine.mk
  21. LICENSE
  22. lk_inc.mk.example
  23. makefile
  24. 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