GDB Trace functions calls when executing a program

Please let me know if in GDB there is a way to print function names when
program is executing - this is to just track / trace the code flow.

Generally in projects which has thousands of lines of code - it is very
difficult to trace a flow. The first is to decide where to put a breakpoint
for analysis. But to know the place to put breakpoint we need to know where
to enable it - I mean it should be within a function of a flow.

So can we just enable some command and let the program when running using
gdb - gdb can simply print functions name as it executes them.

Is the same possible?

Regards,
Prakash