The seL4 microkernel
Kent McLeod c2fd4b810b use libsel4 constants.h 7 hours ago
configs Kbuild: Removed autoconf files 7 months ago
include Remove symlinked libsel4 files from include dir 7 hours ago
libsel4 Rename shared_types*.bf files to be consistent 7 hours ago
manual manual: document badge range for 64-bit platforms 1 month ago
src use libsel4 constants.h 7 hours ago
tools Device-generation: Add __ASSEMBLER__ guards 8 hours ago
.gitignore git: Remove invocation.h files from .gitignore 10 months ago
.licenseignore RISCV: Remove hartid and DTB parsing from the boot code. 2 days ago
CAVEATS-generic.txt Fix typo: preemptible, not preemptable. 11 months ago
CAVEATS-ia32.txt Release snapshot 4 years ago
CHANGES Updated CHANGES with Clang support 3 days ago
CMakeLists.txt Remove symlinked libsel4 files from include dir 7 hours ago CONTRIBUTING: use new docsite url 11 months ago more CONTRIBUTORS 3 years ago
LICENSE_BSD2.txt Fix licenses (the rest) 1 year ago
LICENSE_GPLv2.txt adjust LICENSE file name to header reference. 4 years ago README: fix build instructions link 11 months ago
VERSION Update VERSION file to 10.1.1-dev 4 months ago
config.cmake cmake: make pde_C an optional top-level type. 3 months ago
gcc.cmake cmake: Update the RISCV build to work with GCC 8.2.0 6 days ago
gdb-macros SELFOUR-317: rename async endpoint to notification object, and other 3 years ago
llvm.cmake Add initial LLVM toolchain support 3 days ago

The seL4 Repository

This repository contains the source code of seL4 microkernel.

For details about the seL4 microkernel, including details about its formal correctness proof, please see the website and associated FAQ.

DOIs for citing recent releases of this repository:

  • DOI

We welcome contributions to seL4. Please see the website for information on how to contribute.

This repository is usually not used in isolation, but as part of the build system in a larger project.


A hosted version of the manual for the most recent release can be found here.

Repository Overview

  • include and src: C and ASM source code of seL4
  • tools: build tools
  • libsel4: C bindings for the seL4 ABI
  • manual: LaTeX sources of the seL4 reference manual

Build Instructions

See the seL4 website for build instructions.


The files in this repository are released under standard open source licenses. Please see the individual file headers and LICENSE_GPLv2.txt and LICENSE_BSD2.txt files for details.