The libabigail package comprises seven command line utilities:
abidiff, kmidiff, abipkgdiff, abicompat, abidw, and abilint.
The abidiff command line tool compares the ABI of two
ELF shared libraries and emits meaningful textual reports about
changes impacting exported functions, variables and their types.
Simarly, the kmidiff compares the kernel module interface of two Linux
kernels. abipkgdiff compares the ABIs of ELF binaries contained in
two packages. abicompat checks if a subsequent version of a shared
library is still compatible with an application that is linked against
it. abidw emits an XML representation of the ABI of a given ELF
shared library. abilint checks that a given XML representation of the
ABI of a shared library is correct.
Install libabigail if you need to compare the ABI of ELF shared
libraries.