2.4.3 Variables

Variables are displayed in the following windows:
Local Variables window
This window shows all local variables and parameters that are valid for the current PC value, with their type and value.
  • A blue L before the variable name indicates a local variable.
  • A green leading P indicates a parameter.
Figure 2-34 Local Variable view
Local Variable view

Global Variables window
This window shows the global variables with their types and values. They are marked by a green G.
Figure 2-35 Global Variable view
Global Variable view

Complex values such as structs and arrays or pointers can be expanded by clicking the small cross before the variable name.

Note

To use the variables windows, the loaded application must be an ELF file that contains .debug_info and .debug_abbrev sections. No other type of debug information is supported for this view. The .debug_info section must contain valid DWARF debug information that matches the DWARF 2 or DWARF 3 specification. The model must provide a PC register to enable locating local variables.
For applications that have more than one compilation unit, the units are only loaded when the PC reaches the respective context.
The loading of these compilation units can be triggered manually by selecting Load Debug Info for Module from the Debug menu. Right-click on one of the variables windows and select Load Debug Info for Module.
The displayed dialog box lists all of the compilation units that can be loaded.

Context menu for Variable view

Right-click one of the items in the Global or Local Variable view to display the context menu. The menu has the following options:
Copy
Copy the contents of the selected variable.
Add to Watch
Add the selected variable to the Watch view.
Insert Breakpoint
Insert a breakpoint on the selected variable.
Enable Breakpoint
Enable the breakpoint at the selected variable.
Breakpoint Properties
If a breakpoint is present on the selected variable, selecting this option displays the Breakpoint properties dialog box.
Edit Value
Edit the contents of the selected variable.
Show memory
Display a dialog box to select a memory space and update the Memory view to display the memory contents at the address specified by the value of the variable.
Show Previous Value
Display the current value and the previous value for the selected variable.
Select All
Select all of the variables in the variable view.
Load Debug Info for Module
Load debug information for the module that contains the selected variable.
Non-ConfidentialPDF file icon PDF versionARM DUI0314Q
Copyright © 2007-2014 ARM. All rights reserved.