b3974732b9
On aarch32, single stepping is configured by setting an instruction breakpoint to mismatch mode. The way that it is checked whether a given breakpoint is being used as a normal breakpoint or for single-stepping is by checking if it has been configured to mismatch. This works because the HW debug API does not currently provide a way to otherwise configure mismatch breakpoints, but seems like an unsatisfactory solution. Whether single-stepping is enabled, and the breakpoint that is being used for it is already stored in the TCB of a thread, and this commit changes checks related to single-stepping to use this information instead. Signed-off-by: Alwin Joshy <joshyalwin@gmail.com>
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
See the contact links on the seL4 website for the full list.
Reporting security vulnerabilities
If you believe you have found a security vulnerability in seL4 or related software, we ask you to follow our vulnerability disclosure policy.
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
License
See the file LICENSE.md.