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DOI: 10.4230/OASIcs.WCET.2018.8

Embedded Program Annotations for WCET Analysis

Authors: Bernhard Schommer, Christoph Cullmann, Gernot Gebhard, Xavier Leroy, Michael Schmidt, and Simon Wegener

Published in: OASIcs, Volume 63, 18th International Workshop on Worst-Case Execution Time Analysis (WCET 2018)

Abstract

We present __builtin_ais_annot(), a user-friendly, versatile way to transfer annotations (also known as flow facts) written on the source code level to the machine code level. To do so, we couple two tools often used during the development of safety-critical hard real-time systems, the formally verified C compiler CompCert and the static WCET analyzer aiT. CompCert stores the AIS annotations given via __builtin_ais_annot() in a special section of the ELF binary, which can later be extracted automatically by aiT.

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Bernhard Schommer, Christoph Cullmann, Gernot Gebhard, Xavier Leroy, Michael Schmidt, and Simon Wegener. Embedded Program Annotations for WCET Analysis. In 18th International Workshop on Worst-Case Execution Time Analysis (WCET 2018). Open Access Series in Informatics (OASIcs), Volume 63, pp. 8:1-8:13, Schloss Dagstuhl – Leibniz-Zentrum für Informatik (2018)

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@InProceedings{schommer_et_al:OASIcs.WCET.2018.8,
  author =	{Schommer, Bernhard and Cullmann, Christoph and Gebhard, Gernot and Leroy, Xavier and Schmidt, Michael and Wegener, Simon},
  title =	{{Embedded Program Annotations for WCET Analysis}},
  booktitle =	{18th International Workshop on Worst-Case Execution Time Analysis (WCET 2018)},
  pages =	{8:1--8:13},
  series =	{Open Access Series in Informatics (OASIcs)},
  ISBN =	{978-3-95977-073-6},
  ISSN =	{2190-6807},
  year =	{2018},
  volume =	{63},
  editor =	{Brandner, Florian},
  publisher =	{Schloss Dagstuhl -- Leibniz-Zentrum f{\"u}r Informatik},
  address =	{Dagstuhl, Germany},
  URL =		{https://drops.dagstuhl.de/entities/document/10.4230/OASIcs.WCET.2018.8},
  URN =		{urn:nbn:de:0030-drops-97543},
  doi =		{10.4230/OASIcs.WCET.2018.8},
  annote =	{Keywords: Worst-Case Execution Time (WCET) Analysis, Annotation Support, CompCert, Tool Coupling, aiT}
}

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Embedded Program Annotations for WCET Analysis

Abstract

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