show fct_name of the function/procedure

Hello,

I need (a very simple construct) to show the fct_name/proc_name 
for the function/procedure.

Example:
create procedure/function bet_process() as
$$
declare
pid int := pg_backend_pid() ; -- it works fine
fct_name text := pg_fct_name() ; -- I need it
begin
-- do s.th like
-- call log(pid, fct_name, 'my message');
end;
$$ language plpgsql;

Franz