Abstract: Compilation options in Linux Kernel provide the possibilities of functionality customization in operation system,but in traditional method of static code analysis,it is hard to know how a compilation option could affect the source code of Linux kernel．Based on the Linux kernel source,this paper presents a way of analyzing the relationship between compilation options,files and function calls from the top level,and gives the hierarchical model associated with the source code and compile options.

Key words: Operating system,Linux kernel,Static code analysis