[En-Nut-Discussion] Need Tools to measure Rom and memory Usage

[iVesWorking]

After a few week working on Nut/Os, i still no idea how to measure memory
and rom usage and how much it left.
Just want to ask you guys, What is the tools to check how much memory been
use by my program, and how large are my program occupied the Rom space,
Currently i only use
printf("heapsize = %d\n",NutHeapAvailable());
to check my memory usage, any more specialize method ?
WF