Formally Modelling and Verifying the FreeRTOS Real-time Operating System

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• Shu Cheng
• Friday 18 September 2015, 10:00-11:00
• FW26.

If you have a question about this talk, please contact Peter Sewell.

FreeRTOS is one of this kind of software that has a wide community of users: it is regarded by many as the de facto standard for micro-controllers in embedded applications. This project formally specifies the behaviour of FreeRTOS in the Z notation, and its consistency is verified using the Z/Eves theorem prover. This includes a precise statement of the preconditions for all API commands. Based on this model, 1. code-level annotations for verifying task related API are produced with Verifying C Complier (VCC) which is developed by Microsoft; 2. an abstract model for extension of FreeRTOS to multi-core architectures is specified with the Z notation. This work forms the basis of future work that is refinement of the models to code to produce a verified implementation for both single-core and multi-core platform.

This talk is part of the REMS lunch series.

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