[Beginner Question]How to generate a call-graph for project?

Hi teams,
I am a student who are interested in database,and now I want to generate a call-graph for this database that can help me to understand the structure.(The project is written in cpp,not only c)
I haved tried the doxygen,but the information that generates is very incomplete(Even if I open the extract-all opinion).
How can I achieve it(my system is fedora linux 36)?
Thanks in advance!
Yours,
JingZhang.