I do this with a simple function in my .bashrc script:
$> cat >> ~/.bashrc
99 function cscopesetup()
100 {
101 rm cscope.files;
102
103 echo "Populating filenames...";
104 find $SRC/folder1/ -iname "*.c" -print >> cscope.files #folder1
105 find $SRC/folder9/ -iname "*.h" -print >> cscope.files #folder9
106 echo "Driver done"
107 }