Other than malloc/free does a program need the OS to provide anything else?

Question

I\'m working on designing the kernel (which I\'m going to actually call the \"core\" just to be different, but its basically the same) for an OS I\'m working on. The specifics o

Answer 1

Read about virtual memory management (paging). It's highly CPU-specific, and every OS implements VM management specially for every supported CPU. If you're writing your OS for x86/amd64, read their respective manuals.