romfs是在嵌入式系统中用的很广泛的一个小型的只读文件系统，该代码编译后的工具可以生成romfs的映象文件，romfs是个很简单的文件系统，参考此代码，可以让读者迅速了解到文件系统的相关知识，并可以书写自己的文件系统-romfs in embedded systems with a very wide range of a small read-only file system, the code compiled romfs tools can generate the mapping document, romfs is a very simple file system, refer to the code, allowing readers to quickly understand that the file system-related knowledge, and can write its own file system