How do I list the symbols in a .so file?

Question

How do I list the symbols being exported from a .so file? If possible, I'd also like to know their source (e.g. if they are pulled in from a static library). I'm using gcc 4.0.2, if that makes a difference.

Answer 1

You can use the readelf program for this:

readelf -Ws /usr/lib/libexample.so

You will need to do additional processing to only retrieve values provided by this file and not its dependencies though