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Hardware architecture specification and constraint-based WCET computation

Herbegue, Hajer and Cassé, Hugues and Filali, Mamoun and Rochange, Christine Hardware architecture specification and constraint-based WCET computation. (2013) In: IEEE International Symposium on Industrial Embedded Systems - SIES 2013, 19 June 2013 - 21 June 2013 (Porto, Portugal).

(Document in English)

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Official URL: http://dx.doi.org/10.1109/SIES.2013.6601499


The analysis of the worst-case execution times is necessary in the design of critical real-time systems. To get sound and precise times, the WCET analysis for these systems must be performed on binary code and based on static analysis. OTAWA, a tool providing WCET computation, uses the Sim-nML language to describe the instruction set and XML files to describe the microarchitecture. The latter information is usually inadequate to describe real architectures and, therefore, requires specific modifications, currently performed by hand, to allow correct time calculation. In this paper, we propose to extend Sim-nML in order to support the description of modern microarchitecture features along the instruction set description and to seamlessly derive the time calculation. This time computation is specified as a constraint solving problem that is automatically synthesized from the extended Sim-nML. Thanks to its declarative aspect, this approach makes easier and modular the description of complex features of microprocessors while maintaining a sound process to compute times.

Item Type:Conference or Workshop Item (Paper)
Additional Information:Thanks to IEEE editor. The definitive version is available at http://ieeexplore.ieee.org/xpl/articleDetails.jsp?arnumber=6601499
HAL Id:hal-01148073
Audience (conference):International conference proceedings
Uncontrolled Keywords:
Institution:Université de Toulouse > Institut National Polytechnique de Toulouse - Toulouse INP (FRANCE)
French research institutions > Centre National de la Recherche Scientifique - CNRS (FRANCE)
Université de Toulouse > Université Toulouse III - Paul Sabatier - UT3 (FRANCE)
Université de Toulouse > Université Toulouse - Jean Jaurès - UT2J (FRANCE)
Université de Toulouse > Université Toulouse 1 Capitole - UT1 (FRANCE)
Laboratory name:
Deposited On:04 May 2015 08:26

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