Next: Compilation options, Up: Reducing the Size of Executables with unused subprogram/data elimination
By default, an executable contains all code and data of its composing objects (directly linked or coming from statically linked libraries), even data or code never used by this executable.
This feature will allow you to eliminate such unused code from your executable, making it smaller (in disk and in memory).
This functionality is only available on native x86 GNU/Linux platform for the moment.