Tornado

Tornado 2.0
User’s Guide
command controls context in the program-display panel, a button with
this definition is a convenient way to get the display panel back to the
location where your program is suspended, after scrolling elsewhere.
After completing the form, press the OK box at the bottom; your new
button appears at the right of the menu bar.
CrossWind automatically saves your button definition by writing Tcl code
at the end of your ~/.wind/crosswind.tcl initialization file. For example,
the button definition above writes the following there:
toolBarItemCreate Home button {ttySend "frame\n"}
For buttons with more elaborate effects, consider first defining a new
debugger command as described in 7.6 Tcl: Debugger Automation, p.266;
then you can hook up the new command to a new button. You can also
attach buttons to commands resulting from the GDB define command (see
GDB User’s Guide: Canned Sequences of Commands).
For examples of how to record your own button definitions in a
CrossWind initialization file, see Tcl: “This” Buttons for C++, p.275.
7.4.2 Debugger Command Panel: GDB
CrossWind is designed to provide graphical access to those debugger actions that
are best controlled graphically, but also to exploit the command-line GDB interface
when that is the best way to perform some particular action. For example, the
housekeeping of getting subroutines started necessarily involves typing
subroutine names and argument lists. So that you do not have to switch back and
forth between menus, buttons, and dialogs or forms for commands of this sort, the
debugger exploits the command panel, which is inherently best suited to
commands with typed arguments. The command panel provides full access to the
GDB command language described in the GDB manual, GDB User’s Guide.
NOTE: As a convenience, the GDB command interpreter repeats the previous
command when you press ENTER (or RETURN) on an empty line, except for a few
commands where it would be dangerous or pointless. See GDB User’s Guide: GDB
Commands for more information. Press ENTER in the debugger only when you
want to execute or repeat a command.
The following sections summarize some particularly useful commands, and
describe commands added by Wind River Systems that are not part of other
versions of GDB.
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