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Compiler-based Extraction of Event Arrival Functions for Real-Time Systems Analysis

Authors Dominic Oehlert, Selma Saidi, Heiko Falk

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Author Details

Dominic Oehlert
  • Hamburg University of Technology, Hamburg, Germany
Selma Saidi
  • Hamburg University of Technology, Hamburg, Germany
Heiko Falk
  • Hamburg University of Technology, Hamburg, Germany

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Dominic Oehlert, Selma Saidi, and Heiko Falk. Compiler-based Extraction of Event Arrival Functions for Real-Time Systems Analysis. In 30th Euromicro Conference on Real-Time Systems (ECRTS 2018). Leibniz International Proceedings in Informatics (LIPIcs), Volume 106, pp. 4:1-4:22, Schloss Dagstuhl – Leibniz-Zentrum für Informatik (2018) https://doi.org/10.4230/LIPIcs.ECRTS.2018.4

Abstract

Event arrival functions are commonly required in real-time systems analysis. Yet, event arrival functions are often either modeled based on specifications or generated by using potentially unsafe captured traces. To overcome this shortcoming, we present a compiler-based approach to safely extract event arrival functions. The extraction takes place at the code-level considering a complete coverage of all possible paths in the program and resulting in a cycle accurate event arrival curve. In order to reduce the runtime overhead of the proposed algorithm, we extend our approach with an adjustable level of granularity always providing a safe approximation of the tightest possible event arrival curve. In an evaluation, we demonstrate that the required extraction time can be heavily reduced while maintaining a high precision.

Subject Classification

ACM Subject Classification
  • Computer systems organization → Real-time systems
  • Software and its engineering → Compilers
  • Mathematics of computing → Integer programming
Keywords
  • compiler
  • real-time
  • event arrival functions
  • extraction

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