NQC²: A Non-Intrusive QEMU Code Coverage Plugin
Nils Bosbach, Alwalid Salama, Lukas Jünger, Mark Burton, Niko Zurstraßen, Rebecca Pelke, Rainer Leupers · 2024
Code coverage analysis has become a standard approach in software development, facilitating the assessment of test suite effectiveness, the identification of under-tested code segments, and the discovery of performance bottlenecks. When code coverage of software for embedded systems needs to be measured, conventional approaches quickly meet their limits. A commonly used approach involves instrumenting the source files with added code that collects and dumps coverage information during runtime. This inserted code usually relies on the existence of an operating and a file system to dump the collected data. These features are not available for bare-metal programs that are executed on embedded systems.