Abstract
We discuss the difference between a formal semantics of the C standard, and a formal semantics of an implementation of C that satisfies the C standard. In this context we extend the CompCert semantics with end-of-array pointers and the possibility to byte-wise copy objects. This is a first and necessary step towards proving that the CompCert semantics refines the formal version of the C standard that is being developed in the Formalin project in Nijmegen.
This is a preview of subscription content, log in via an institution to check access.
Access this chapter
Tax calculation will be finalised at checkout
Purchases are for personal use only
Preview
Unable to display preview. Download preview PDF.
Similar content being viewed by others
References
International Organization for Standardization: WG14 Defect Report Summary (2008), http://www.open-std.org/jtc1/sc22/wg14/www/docs/
International Organization for Standardization: ISO/IEC 9899-2011: Programming languages – C. ISO Working Group 14 (2012)
Krebbers, R.: Aliasing Restrictions of C11 Formalized in Coq. In: Gonthier, G., Norrish, M. (eds.) CPP 2013. LNCS, vol. 8307, pp. 50–65. Springer, Heidelberg (2013)
Krebbers, R.: An Operational and Axiomatic Semantics for Non-determinism and Sequence Points in C. In: POPL, pp. 101–112 (2014)
Krebbers, R., Wiedijk, F.: Separation Logic for Non-local Control Flow and Block Scope Variables. In: Pfenning, F. (ed.) FOSSACS 2013. LNCS, vol. 7794, pp. 257–272. Springer, Heidelberg (2013)
Leroy, X.: Formal verification of a realistic compiler. CACM 52(7), 107–115 (2009)
Leroy, X., Appel, A.W., Blazy, S., Stewart, G.: The CompCert Memory Model, Version 2. Research report RR-7987, INRIA (2012)
Leroy, X., Blazy, S.: Formal verification of a C-like memory model and its uses for verifying program transformations. JAR 41(1), 1–31 (2008)
Moy, Y., Marché, C.: The Jessie plugin for Deduction Verification in Frama-C, Tutorial and Reference Manual (2011)
Norrish, M.: C formalised in HOL. Ph.D. thesis, University of Cambridge (1998)
Regehr, J.: (2012), Blog post at http://blog.regehr.org/archives/759
Author information
Authors and Affiliations
Editor information
Editors and Affiliations
Rights and permissions
Copyright information
© 2014 Springer International Publishing Switzerland
About this paper
Cite this paper
Krebbers, R., Leroy, X., Wiedijk, F. (2014). Formal C Semantics: CompCert and the C Standard. In: Klein, G., Gamboa, R. (eds) Interactive Theorem Proving. ITP 2014. Lecture Notes in Computer Science, vol 8558. Springer, Cham. https://doi.org/10.1007/978-3-319-08970-6_36
Download citation
DOI: https://doi.org/10.1007/978-3-319-08970-6_36
Publisher Name: Springer, Cham
Print ISBN: 978-3-319-08969-0
Online ISBN: 978-3-319-08970-6
eBook Packages: Computer ScienceComputer Science (R0)