PharOS, a multicore OS ready for safety-related automotive systems: results and future prospects

C Aussaguès , D Chabrol , V David , D Roux , N Willey , A. Tournadre (1) , M Graniou

1 CHU Gabriel Montpied [Clermont-Ferrand]

Automotive electrical/electronic architectures need to perform more and more functions that are mapped onto many different electronic control units (ECU) because of their different safety levels or different application domains (body, powertrain, multimedia, etc.). Freedom of interference is required to comply with the upcoming ISO 26262 standard for mixing different ASIL levels on the same ECU and is also required to cope with the safe integration of software from different suppliers. PharOS provides dedicated software partitioning mechanisms as well as controlled and efficient resource sharing by construction, from the design to the implementation stages. The main features of PharOS, contributing to this property, are presented in this paper as well as the results on its application an industry-driven case study and associated future prospects.

Mots clés: dependability and safety; real-time systems; multi-core; automotive embedded software

Domaines: Informatique [cs]; Systèmes embarqués

C Aussaguès, D Chabrol, V David, D Roux, N Willey, et al.. PharOS, a multicore OS ready for safety-related automotive systems: results and future prospects. ERTS2 2010, Embedded Real Time Software & Systems, May 2010, Toulouse, France. ⟨hal-02267840⟩