vtable-dumper 1.2-1 (amd64 binary) in ubuntu hirsute

 It is intended for developers of software libraries and maintainers of Linux
 distributions who are interested in ensuring backward binary compatibility.
 .
 A virtual function table is a mechanism used in a programming language to
 support dynamic dispatch (or run-time method binding). Virtual tables
 are part of the ABI of a C++ shared library.