forked from Imagelibrary/seL4
14f2ed7650
A previous commit (9ec5df5f) to provide more efficient CLZ (count leading zeros) and CTZ (count trailing zeros) removed the `__clzsi2` and `__ctzsi2` symbols, due to a misunderstanding of the types of these and other library functions expected by GCC's intrinsics.9ec5df5fbroke the riscv32 build. This commit corrects the misunderstanding: - `__clzsi2` and `__ctzsi2` are reinstated with correct types. - The types of `__clzdi2` and `__ctzdi2` are corrected. - `__clzti2` and `__ctzti2` are removed, since seL4 contains no compiler intrinsics that would require them. - `clzl` and `ctzl` dispatch to the appropriate library functions based on the size of `unsigned long`. - Configuration options are updated to ensure that the library functions are included in the kernel binary only when needed. Signed-off-by: Matthew Brecknell <Matthew.Brecknell@data61.csiro.au>
The seL4 microkernel
This project contains the source code of seL4 microkernel.
For details about the seL4 microkernel, including details about its formal
correctness proof, please see the sel4.systems website and associated
FAQ.
DOIs for citing recent releases of this repository:
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.
seL4 Basics
- Tutorials
- Documentation
- seL4 libraries
- seL4Test
- Debugging guide
- Benchmarking guide
- Virtualization on seL4
- Host Build Dependencies
- Porting seL4
Community
- Mailing lists
- Suggested projects
- CommunityProjects
Manual
A hosted version of the manual for the most recent release can be found here.
A web version of the API can be found here
Repository Overview
includeandsrc: C and ASM source code of seL4tools: build toolslibsel4: C bindings for the seL4 ABImanual: LaTeX sources of the seL4 reference manual
Build Instructions
See the seL4 website for build instructions.
Status
A list of releases and current project status can be found under seL4 releases.
- Roadmap: new features in development
- Hardware Support: information about hardware platform ports
- Kernel Features: information about available kernel features
- Userland Components and Drivers: available device drivers and userland components