emacs gdb layout

[Ritchie]

After start gdb inside emacs with option "--annotation=3 --fullname",
I ran gdb-many-windows to get the gdb layout which contains the local
variable buffer, stack frame buffer and breakpoint buffers. However
these buffers do not show anything as I run debugger. In order to get
local buffer to display local variable values, stack frame buffer to
display stack status and break point display current breakpoint info
as I run the debugger, what am I missing?

Thank you in advance

- R