DROPS

Document

DOI: 10.4230/OASIcs.WCET.2007.1191

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

Authors: Daniel Sundmark, Anders Petterson, Christer Sandberg, Andreas Ermedahl, and Henrik Thane

Published in: OASIcs, Volume 6, 7th International Workshop on Worst-Case Execution Time Analysis (WCET'07) (2007)

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.

Cite as

Daniel Sundmark, Anders Petterson, Christer Sandberg, Andreas Ermedahl, and Henrik Thane. Finding DU-Paths for Testing of Multi-Tasking Real-Time Systems using WCET Analysis. In 7th International Workshop on Worst-Case Execution Time Analysis (WCET'07). Open Access Series in Informatics (OASIcs), Volume 6, pp. 1-6, Schloss Dagstuhl – Leibniz-Zentrum für Informatik (2007)

Copy BibTex To Clipboard

@InProceedings{sundmark_et_al:OASIcs.WCET.2007.1191,
  author =	{Sundmark, Daniel and Petterson, Anders and Sandberg, Christer and Ermedahl, Andreas and Thane, Henrik},
  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)},
  pages =	{1--6},
  series =	{Open Access Series in Informatics (OASIcs)},
  ISBN =	{978-3-939897-05-7},
  ISSN =	{2190-6807},
  year =	{2007},
  volume =	{6},
  editor =	{Rochange, Christine},
  publisher =	{Schloss Dagstuhl -- Leibniz-Zentrum f{\"u}r Informatik},
  address =	{Dagstuhl, Germany},
  URL =		{https://drops.dagstuhl.de/entities/document/10.4230/OASIcs.WCET.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}
}

Document

DOI: 10.4230/OASIcs.WCET.2005.812

Using a WCET Analysis Tool in Real-Time Systems Education

Authors: Samuel Petersson, Andreas Ermedahl, Anders Pettersson, Daniel Sundmark, and Niklas Holsti

Published in: OASIcs, Volume 1, 5th International Workshop on Worst-Case Execution Time Analysis (WCET'05) (2007)

Abstract

To reach a more widespread use, WCET analysis tools need to be a standard part in the education of embedded systems developers. Many real-time courses in academia use Lego Mindstorms, an off-the-shelf kit of Lego bricks for building and controlling small prototype robots. We describe work on porting the Bound-T WCET analysis tool to the Lego Mindstorms microprocessor; the Renesas H8/3292. We believe that this work will make students, and indirectly the industry of tomorrow, aware of the benefits of WCET analysis tools. We also present the real-time laboratory framework in which this WCET analysis tool will be used. The framework has been developed with schedulability and timing predictability in mind, and is already used in a number of real-time courses given at MÃ‚Â¨alardalen University in Sweden. The developed WCET tool and the real-time laboratory framework will be freely available for academic use.

Cite as

Samuel Petersson, Andreas Ermedahl, Anders Pettersson, Daniel Sundmark, and Niklas Holsti. Using a WCET Analysis Tool in Real-Time Systems Education. In 5th International Workshop on Worst-Case Execution Time Analysis (WCET'05). Open Access Series in Informatics (OASIcs), Volume 1, pp. 29-32, Schloss Dagstuhl – Leibniz-Zentrum für Informatik (2007)

Copy BibTex To Clipboard

@InProceedings{petersson_et_al:OASIcs.WCET.2005.812,
  author =	{Petersson, Samuel and Ermedahl, Andreas and Pettersson, Anders and Sundmark, Daniel and Holsti, Niklas},
  title =	{{Using a WCET Analysis Tool in Real-Time Systems Education}},
  booktitle =	{5th International Workshop on Worst-Case Execution Time Analysis (WCET'05)},
  pages =	{29--32},
  series =	{Open Access Series in Informatics (OASIcs)},
  ISBN =	{978-3-939897-24-8},
  ISSN =	{2190-6807},
  year =	{2007},
  volume =	{1},
  editor =	{Wilhelm, Reinhard},
  publisher =	{Schloss Dagstuhl -- Leibniz-Zentrum f{\"u}r Informatik},
  address =	{Dagstuhl, Germany},
  URL =		{https://drops.dagstuhl.de/entities/document/10.4230/OASIcs.WCET.2005.812},
  URN =		{urn:nbn:de:0030-drops-8126},
  doi =		{10.4230/OASIcs.WCET.2005.812},
  annote =	{Keywords: }
}

Search Results

Documents authored by Sundmark, Daniel

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

Abstract

Cite as

Using a WCET Analysis Tool in Real-Time Systems Education

Abstract

Cite as

Thanks for your feedback!

Could not send message