How to view the list of symbols (functions, classes) in a .so file on Linux?

Hi everyone! I'm new to C++ and just started learning about dynamic libraries (.so) on Linux. I have a library compiled from several files. I want to check which functions and classes it exports, i.e., which symbols are available for other programs. Problem: I compiled my library `libmylib.so` with g++, but when I try to link it with a test program, the linker gives "undefined reference" errors. I suspect that function names are being mangled or I didn't declare them as extern "C" correctly. Example code I use to build the library: ```cpp // mylib.h #pragma once void hello(); int add(int a, int b); ``` ```cpp // mylib.cpp #include "mylib.h" #include void hello() { std::cout << "Hello fro