This tip I found in the NuttX mailing list, but it could be use by any ELF file:
NM=arm-none-eabi-nm echo "TOP 10 BIG DATA" $NM --print-size --size-sort --radix dec -C nuttx | grep ' [DdBb] ' | tail -20 echo "TOP 10 BIG CODE" $NM --print-size --size-sort --radix dec -C nuttx | grep ' [TtWw] ' | tail -20
Thanks Greg Nutt for these tips!