Using Sequencing to Trigger a Better Analysis

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Provided by: University of Vigo
Topic: Hardware
Format: PDF
The authors improve the static analysis of control flow in programs running on embedded microcontrollers. Their new techniques, called sequencing and triggering analysis, can sometimes determine that the scheduler always runs a collection of tasks in a certain order or that some interrupt handlers are dead or at least cannot fire at certain times. Triggering identifies root causes of indirect control flow through system idioms and programmer annotations. Sequencing propagates the results of triggers through system execution in order to refine their estimate of the program control flow graph.
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