Linux kernel has a set of system calls (called syscalls in short) offered for userspace. Each architecture can support them but the numbers used for their identification can vary between archs.
And those numbers can be important for some projects (like Valgrind for example).
Check issues list and work on any of them.
I keep a copy at https://marcin.juszkiewicz.com.pl/download/tables/syscalls.html page.
As a part of this project I provide code to get system call number/name and availability from Python level.
Please check "bin/syscall" script and files in "examples/" directory.
I needed to merge both projects to make it more manageable. Now all data is kept in one place so I do not need to synchronize it between projects.
The plan is to have some kind of CI which would handle updates.