libdep: tools to analyze how programs depend on libraries

symbol-dep.py: how programs depend on functions in libraries

$./symbol-dep.py -s a.out -d /lib/i386-linux-gnu/libc-2.19.so 
_exit
__libc_start_main
puts

libdep-pic.py: how programs depend on other libraries

$ ./libdep-pic.py /usr/lib/firefox/firefox

you will see a diagram named libdep.png

~/libdep$ ls
libdep-pic.py  libdep.png  README.md  symbol-dep.py

The diagram is like: