There are other more portable way to do OS wrapper, and maybe faster (but it's not an issue). Just write the wrapper as a C extension module, and in the module

There are other more portable way to do OS wrapper, and maybe faster (but it's not an issue). Just write the wrapper as a C extension module, and in the module make the system call with proper library call. like in the following code: https://github.com/torvalds/linux/blob/master/samples/vfs/test-statx.c https://github.com/torvalds/linux/blob/master/samples/vfs/te... This way it will be portable! A couple of weeks ago, I just made for our OS's system calls. It's only a first draft, but works fine. You could also parse the C header for constant values. (Actually, I wrote a python script to generate the C extension for the system calls also, not just for the constants)