TotalView Users Guide - CI Wiki

Displaying Variables
Figure 170: Variable Window
for a Global Variable
Although a Variable Window is the best way to see all of an array’s elements
or all elements in a structure, using the Expression List Window is easier for
variables with one value. Using it also cuts down on the number of windows
that are open at any one time. For more information, see “Viewing a List of
Variables” on page 303.
The following sections discuss how you can display variable information:
� “Displaying Program Variables” on page 284
� “Seeing Value Changes” on page 285
� “Displaying Variables in the Current Block” on page 287
� “Viewing Variables in Different Scopes as Program Executes” on page 288
� “Scoping Issues” on page 289
� “Browsing for Variables” on page 291
� “Displaying Local Variables and Registers” on page 292
� “Dereferencing Variables Automatically” on page 293
� “Displaying Areas of Memory” on page 296
� “Displaying Machine Instructions” on page 297
� “Rebinding the Variable Window” on page 298
� “Closing Variable Windows” on page 298
Displaying Program Variables
You can display local and global variables by:
� Diving into the variable in the Source or Stack Panes.
� Selecting the View > Lookup Variable command. When prompted, enter
the name of the variable.
CLI: dprint variable
� Using the Tools > Program Browser command.
After using one of these methods, TotalView displays a Variable Window
that contains the information you want. The Variable Window can display
simple variables, such as ints, sets of like elements such as arrays, or more
complicated variables defined as structures and arrays of structures.
If you keep a Variable Window open while a process or thread is running,
the information being displayed might not be accurate. TotalView updates
the window when the process or thread stops. If TotalView can’t find a
stack frame for a displayed local variable, the variable’s status is sparse,
284 Chapter 14: Examining and Changing Data