cminmin

__attribute__((maybe_unused)) or [[maybe_unused]] or such things (dependin on ur spec version i guess?) can be used not to disable a whole line of errors.

if you use few you can have em all in the registers perhaps (not sure what arch they rollin?)

your programs have a data segment. its not the heap nor the stack... and it can be (depending on loader/linker) a source of reliable object->address mappings as its not dynamically populated.