Hi,

Again and again I struggle making my firmware fit into the mcu's flash 
memory. Finding out which symbol uses lots of memory is possible through 
objdump's .lst files. IMHO, those files are quite huge and hard to read 
though.

That's why I wrote a small tool which parses and visualizes .lst files. 
Maybe it helps somebody.

Try: http://files.rtti.de/lstvis/
Source: https://github.com/rti/lstvis

Cheers,
Robert