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.
@InProceedings{oehlert_et_al:LIPIcs.ECRTS.2018.4, author = {Oehlert, Dominic and Saidi, Selma and Falk, Heiko}, title = {{Compiler-based Extraction of Event Arrival Functions for Real-Time Systems Analysis}}, booktitle = {30th Euromicro Conference on Real-Time Systems (ECRTS 2018)}, pages = {4:1--4:22}, series = {Leibniz International Proceedings in Informatics (LIPIcs)}, ISBN = {978-3-95977-075-0}, ISSN = {1868-8969}, year = {2018}, volume = {106}, editor = {Altmeyer, Sebastian}, publisher = {Schloss Dagstuhl -- Leibniz-Zentrum f{\"u}r Informatik}, address = {Dagstuhl, Germany}, URL = {https://drops.dagstuhl.de/entities/document/10.4230/LIPIcs.ECRTS.2018.4}, URN = {urn:nbn:de:0030-drops-89985}, doi = {10.4230/LIPIcs.ECRTS.2018.4}, annote = {Keywords: compiler, real-time, event arrival functions, extraction} }
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