License: Creative Commons Attribution-NonCommercial-NoDerivs 3.0 Unported license (CC BY-NC-ND 3.0)
When quoting this document, please refer to the following
DOI: 10.4230/OASIcs.WCET.2007.1191
URN: urn:nbn:de:0030-drops-11914
URL: https://drops.dagstuhl.de/opus/volltexte/2007/1191/
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Sundmark, Daniel ; Petterson, Anders ; Sandberg, Christer ; Ermedahl, Andreas ; Thane, Henrik

Finding DU-Paths for Testing of Multi-Tasking Real-Time Systems using WCET Analysis

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sundmark.1191.pdf (0.2 MB)


Abstract

Memory corruption is one of the most common
software failures. For sequential software and multi-
tasking software with synchronized data accesses, it has
been shown that program faults causing memory cor-
ruption can be detected by analyzing the relations be-
tween defines and uses of variables (DU-based testing).
However, such methods are insufficient in preemptive
systems, since they lack the ability to detect inter-task
shared variable dependencies. In this paper, we propose
the use of a system level shared variable DU analy-
sis of preemptive multi-tasking real-time software. By
deriving temporal attributes of each access to shared
data using WCET analysis, and combining this infor-
mation with the real-time schedule information, our
method also detects inter-task shared variable depen-
dencies. The paper also describes how we extended the
SWEET tool to derive these temporal attributes.

BibTeX - Entry

@InProceedings{sundmark_et_al:OASIcs:2007:1191,
  author =	{Daniel Sundmark and Anders Petterson and Christer Sandberg and Andreas Ermedahl and Henrik Thane},
  title =	{{Finding DU-Paths for Testing of Multi-Tasking Real-Time Systems using WCET Analysis}},
  booktitle =	{7th International Workshop on Worst-Case Execution Time Analysis (WCET'07)},
  series =	{OpenAccess Series in Informatics (OASIcs)},
  ISBN =	{978-3-939897-05-7},
  ISSN =	{2190-6807},
  year =	{2007},
  volume =	{6},
  editor =	{Christine Rochange},
  publisher =	{Schloss Dagstuhl--Leibniz-Zentrum fuer Informatik},
  address =	{Dagstuhl, Germany},
  URL =		{http://drops.dagstuhl.de/opus/volltexte/2007/1191},
  URN =		{urn:nbn:de:0030-drops-11914},
  doi =		{10.4230/OASIcs.WCET.2007.1191},
  annote =	{Keywords: Testing, Real-time systems, WCET analysis, data flow}
}

Keywords: Testing, Real-time systems, WCET analysis, data flow
Collection: 7th International Workshop on Worst-Case Execution Time Analysis (WCET'07)
Issue Date: 2007
Date of publication: 13.11.2007


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