Évolution dynamique des systèmes d'exploitation, une approche par la programmation par aspects

摘要

With the never ending evolution of communication technologies and of multimedia, the race to integrate new functionalities has lead to a situation where systems are poorly adaptable. The design of extensible software is often difficult and often impact on software performances. Thus, many developers choose to simply distribute software patches that requires users to restart their systems. This situation is not only a disturbance for user but contribute to virus propagation. In this thesis, we try to conciliate software extensibility and performances. Our approach consists in using an aspect oriented system based on binary code rewriting. Binary code instrumentation allows fine-grained code modification without impacting on performance, while aspect oriented programming helps developers to easily express adaptation code. We evaluate the evolution of systems using our aspect oriented framework : Arachne. We evaluate our approach following two axis : the use of aspect language to concisely express adaptation code, and performance impact of binary rewriting code.