Simulation-based debugging of soft real-time applications

Albertsson, Lars (2001) Simulation-based debugging of soft real-time applications. In: Real-Time Technology and Applications Symposium, 2001. Proceedings, 7th IEEE, 30 May - 1 June 2001, Taipei, Taiwan.

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Official URL: doi:10.1109/RTTAS.2001.929870


We present a temporal debugger, capable of examining time flow of soft real-time applications in Unix systems. The debugger is based on a simulator modelling an entire workstation in sufficient detail to run unmodified operating systems and applications. It provides a deterministic and non-intrusive debugging environment, allowing reproducible presentation of program time flow. The primary contribution of this paper is virtual machine translation, a technique necessary to debug applications in a simulated Unix system. We show how a virtual machine translator maps low-level data, provided by the simulator, to data useful to a symbolic debugger. The translator operates by parsing data structures in the target operating system and has been implemented for the GNU debugger and simulated Linux systems.

Item Type:Conference or Workshop Item (Paper)
Additional Information:ISBN: 0-7695-1134-1
ID Code:3061
Deposited On:15 Jul 2008
Last Modified:18 Nov 2009 16:17

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