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Dynamic Patching of Embedded Software

Authors:

Mathias Ekman, Henrik Thane

Research group:

Software Testing Laboratory

Publication Type:

Conference/Workshop Paper

Venue:

13th IEEE Real-Time and Embedded Technology and Applications Symposium

Publisher:

IEEE Computer Society

Abstract

In this paper, we present a method for patching embedded multitasking real-time systems applications during runtime, for instrumentation purposes. The method uses binary modification techniques and automates the entire patch process. The method makes it possible to insert and remove instrumentation code without preparing the original source code. The method makes it possible to invoke code patches during run-time, without having to rely on dynamic linking of object files, or predeployment prepared dormant code. The actual modification of the executing target binary is performed in a safe and controlled manner by a dedicated low interference mutation task.

Bibtex

@inproceedings{Ekman1161,
author = {Mathias Ekman and Henrik Thane},
title = {Dynamic Patching of Embedded Software},
pages = {337--346},
month = {April},
year = {2007},
booktitle = {Proceedings of the 13th IEEE Real Time and Embedded Technology and Applications Symposium},
publisher = {IEEE Computer Society},
url = {http://www.es.mdu.se/publications/1161-}
}