Automated Regression Testing of a GCC Toolchain used on Embedded CPU Programs

Abstract

Because of increased external disturbances, embedded systems are prone to, amongst others, control flow errors. In order to increase their reliability, multiple software-implemented countermeasures have been proposed. To ease their implementation, we have developed a GCC plugin which can automatically implement a variety of existing counter-measures. This plugin is being developed incrementally, continuously adding support for new techniques. However, when developing software incrementally, there is a need for regression testing. This assures previously supported case studies are still operating as expected. This paper presents our approach to automated regression testing for our GCC toolchain.