This maybe true for most system languages on some platforms. My OS internals are rusty, but from hacking on minix, there was an issue for x86 bootstrapping int

This maybe true for most system languages on some platforms. My OS internals are rusty, but from hacking on minix, there was an issue for x86 bootstrapping into protected mode stuff to set important things like interrupt handlers and other addresses. Whether this is done in the language by macros, embedded asm or external asm, ultimately a binary is produced that is code and data segments for the architecture.