Static Analysis of Run-Time Errors in Embedded Real-Time Parallel C Programs

We present a static analysis by Abstract Interpretation to check for run-time errors in parallel and multi-threaded C programs. Following our work on Astr\'ee, we focus on embedded critical programs without recursion nor dynamic memory allocation, but extend the analysis to a static set of thre...

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Veröffentlicht in:	Logical methods in computer science Jg. 8, Issue 1
1. Verfasser:	Miné, Antoine
Format:	Journal Article
Sprache:	Englisch
Veröffentlicht:	Logical Methods in Computer Science e.V 01.01.2012
Schlagworte:	computer science - logic in computer science computer science - programming languages d.2.4 f.3.1 f.3.2
ISSN:	1860-5974, 1860-5974
Online-Zugang:	Volltext
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Beschreibung
Zusammenfassung:	We present a static analysis by Abstract Interpretation to check for run-time errors in parallel and multi-threaded C programs. Following our work on Astr\'ee, we focus on embedded critical programs without recursion nor dynamic memory allocation, but extend the analysis to a static set of threads communicating implicitly through a shared memory and explicitly using a finite set of mutual exclusion locks, and scheduled according to a real-time scheduling policy and fixed priorities. Our method is thread-modular. It is based on a slightly modified non-parallel analysis that, when analyzing a thread, applies and enriches an abstract set of thread interferences. An iterator then re-analyzes each thread in turn until interferences stabilize. We prove the soundness of our method with respect to the sequential consistency semantics, but also with respect to a reasonable weakly consistent memory semantics. We also show how to take into account mutual exclusion and thread priorities through a partitioning over an abstraction of the scheduler state. We present preliminary experimental results analyzing an industrial program with our prototype, Th\'es\'ee, and demonstrate the scalability of our approach.
ISSN:	1860-5974 1860-5974
DOI:	10.2168/LMCS-8(1:26)2012