Stack size analysis for interrupt-driven programs

  • Authors:
  • Krishnendu Chatterjee;Di Ma;Rupak Majumdar;Tian Zhao;Thomas A. Henzinger;Jens Palsberg

  • Affiliations:
  • University of California, Berkeley;Purdue University;University of California, Berkeley;University of Wisconsin, Milwaukee;University of California, Berkeley;Purdue University

  • Venue:
  • SAS'03 Proceedings of the 10th international conference on Static analysis
  • Year:
  • 2003

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Abstract

We study the problem of determining stack boundedness and the exact maximum stack size for three classes of interrupt-driven programs. Interrupt-driven programs are used in many real-time applications that require responsive interrupt handling. In order to ensure responsiveness, programmers often enable interrupt processing in the body of lower-priority interrupt handlers. In such programs a programming error can allow interrupt handlers to be interrupted in cyclic fashion to lead to an unbounded stack, causing the system to crash. For a restricted class of interrupt-driven programs, we show that there is a polynomial-time procedure to check stack boundedness, while determining the exact maximum stack size is PSPACE-complete. For a larger class of programs, the two problems are both PSPACE-complete, and for the largest class of programs we consider, the two problems are PSPACE-hard and can be solved in exponential time.