I've been digging into skipping zero-fill initialization for large bss sections and came across the uninitialized_data section in memmap_default.ld:

However platform.h appears to use uninitialized_ram which is not present in the linker script(s):

Are these intended to be one and the same?

If not, what is uninitialized_data intended for? I can't find a single use of nor reference to it outside of its definition in the linker script.