Symbol Viewer

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Symbol Viewer

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lpcware-support
Senior Contributor I

LPCXpresso 7.6.0 introduced a Symbol Viewer feature to provide a simple way of displaying the symbols in an object/library/executable. By default, this is located in the top left of the LPCXpresso window, in parallel with the Project Explorer view.

Note: If you are using a Workspace from an earlier version of LPCXpresso, you will need to perform a Window -> Reset Perspective operation for Symbol Viewer to appear.

Viewing Symbols in the Viewer

To open an image in the Symbol Viewer, either highlight it in the Project Explorer Views and use the context sensitive menu 'Tools->View Symbols' menu, or use the Browse button on the Toolbar within the Symbo Viewer windows itself

The Symbol Viewer can display object files (.o), libraries (.lib) and executables (.axf or .elf)

146919_146919.jpgLPCXpressoViewSymbolsMenu.preview.jpg

The image will be processed and displayed in the Symbol Viewer as seen below:

146920_146920.jpgLPCXpressoSymbolsViewer.jpg

It is possible to open multiple Symbol Viewers by pressing the 'Green +' icon in the toolbar. The symbols for different images can then be displayed simultaneously.

Using the Symbol Viewer

When first opening a file, the viewer will display the sections found in the file (e.g. .text, .bss etc). Expanding a section will show the symbols within that section. Clicking on the symbol name will open the source file in an editor window. at the symbol definition (if appropriate).

The columns of the symbol viewer show information about the symbols:

  • Symbol Name
  • Address: The address (or value) of the Symbol
  • Size: The size of the symbol, in bytes. For functions this would be the size of the function. For variables, this would be the size occupied by the variable
  • Flags: The type of the Symbol. Typically this would be Local or Global and Function or Object (data variable)

Note: The symbols displayed are a snapshot of the symbols for a particular build, therefore these should be refreshed when a new build is performed. This can easily be done using the Reload icon in the Symbol Viewer window.

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