This might vary from OS to OS, but at least for many Unix-based systems, everything running in a kernel context shares the same address space, so shared librari

This might vary from OS to OS, but at least for many Unix-based systems, everything running in a kernel context shares the same address space, so shared libraries aren't that relevant. Shared libraries for user processes are still desirable for a variety of reasons (memory usage, not needing to reload shared libs into the cache after a context switch).