5. RELATED WORK
Lotufo [12] analyzes the complexity of maintaining the Kconfig files. An investigation of 29 stable versions of the Linux kernel configuration options is presented. He concludes that the complexity of the code for the configuration options increases consistently, as well as the complexity of the resulting model. Interestingly, as we point out in this work, he also suggests that reasoning capabilities should be added to K config.
Post and Sinz [16] present a technique called lifting that converts all variants of a SPL into a meta program in order to facilitate the application of verification techniques like static analysis, or model checking. They evaluate their approach by applying it into to the K config files of the Linux kernel: The K config files were converted into C-code for analysis with a source code checker, which reveals two new bugs attached to uncommon configuration. This fact also supports the idea that the Linux kernel should introduce reasoning capabilities for its variant model.
Kastner et. al. [7] present an approach to check the syntactic correctness of all variants of a software product line. They present the tool CIDE which is able to analyze CPP based code among other languages. The concept of finding bugs introduced by the use of CPP directives is similar to our work, however, while CIDE focuses on syntactic errors, our approach finds inconsistencies between the source code and the variant model directly.
5. RELATED WORK Lotufo [12] analyzes the complexity of maintaining the Kconfig files. An investigation of 29 stable versions of the Linux kernel configuration options is presented. He concludes that the complexity of the code for the configuration options increases consistently, as well as the complexity of the resulting model. Interestingly, as we point out in this work, he also suggests that reasoning capabilities should be added to K config. Post and Sinz [16] present a technique called lifting that converts all variants of a SPL into a meta program in order to facilitate the application of verification techniques like static analysis, or model checking. They evaluate their approach by applying it into to the K config files of the Linux kernel: The K config files were converted into C-code for analysis with a source code checker, which reveals two new bugs attached to uncommon configuration. This fact also supports the idea that the Linux kernel should introduce reasoning capabilities for its variant model. Kastner et. al. [7] present an approach to check the syntactic correctness of all variants of a software product line. They present the tool CIDE which is able to analyze CPP based code among other languages. The concept of finding bugs introduced by the use of CPP directives is similar to our work, however, while CIDE focuses on syntactic errors, our approach finds inconsistencies between the source code and the variant model directly.
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