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Erschienen in:
2009 | OriginalPaper | Buchkapitel
Mind the Gap
A Verification Framework for Low-Level C
verfasst von : Simon Winwood, Gerwin Klein, Thomas Sewell, June Andronick, David Cock, Michael Norrish
Erschienen in: Theorem Proving in Higher Order Logics
Verlag: Springer Berlin Heidelberg
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This paper presents the formal Isabelle/HOL framework we use to prove refinement between an executable, monadic specification and the C implementation of the seL4 microkernel. We describe the refinement framework itself, the automated tactics it supports, and the connection to our previous C verification framework. We also report on our experience in applying the framework to seL4. The characteristics of this microkernel verification are the size of the target (8,700 lines of C code), the treatment of low-level programming constructs, the focus on high performance, and the large subset of the C programming language addressed, which includes pointer arithmetic and type-unsafe code.