+You can debug an application with GDB in Emacs using graphical mode or
+text command mode (@pxref{GDB Graphical Interface,,, emacs, The
+extensible self-documenting text editor}).
+
+If you are using graphical mode you can see how selected variables
+change each time your program stops (@pxref{Watch Expressions,,,
+emacs, The extensible self-documenting text editor}).
+
+If you are using text command mode, speedbar can show