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only in ondiosp_firm_r20327/rockbox.elf
       8 _C.36.4723
      20 _C.8.5597
     484 _backup.4610
     260 _buf.4612
       4 _last_db_dirlevel.3941
       4 _last_db_selection.3942
     260 _last_folder.3940
       4 _left_level.3232
       8 _lines.3950
       4 _lines.4128
       8 _lines.4318
       8 _lines.4510
       4 _lines.5434
       8 _message.3951
       8 _message.4129
       8 _message.4319
       8 _message.4511
       8 _message.5437
       8 _no_lines.5436
       8 _no_message.5439
      12 _notquickscreen_able_option.3877
       4 _notquickscreen_able_option_.3875
      12 _notquickscreen_able_option__.3876
       4 _peak_release_tick.3239
      12 _plugins_menu_items.4047
      12 _plugins_menu_items_.4045
      12 _plugins_menu_items__.4046
       4 _right_level.3233
       4 _talked_tick.3953
       4 _wps_ab_state.3952
       2 _wrtdate.4314
       2 _wrttime.4315
       8 _yes_lines.5435
       8 _yes_message.5438

only in ondiosp_firm_r20329/rockbox.elf
     8 _C.36.4725
    20 _C.8.5599
   484 _backup.4612
   260 _buf.4614
    44 _gwps_fix_statusbars
    28 _gwps_leave_wps
     4 _last_db_dirlevel.3943
     4 _last_db_selection.3944
   260 _last_folder.3942
     4 _left_level.3234
     8 _lines.3952
     4 _lines.4130
     8 _lines.4320
     8 _lines.4512
     4 _lines.5436
     8 _message.3953
     8 _message.4131
     8 _message.4321
     8 _message.4513
     8 _message.5439
     8 _no_lines.5438
     8 _no_message.5441
    12 _notquickscreen_able_option.3879
     4 _notquickscreen_able_option_.3877
    12 _notquickscreen_able_option__.3878
     4 _peak_release_tick.3241
    12 _plugins_menu_items.4049
    12 _plugins_menu_items_.4047
    12 _plugins_menu_items__.4048
     4 _right_level.3235
     4 _talked_tick.3955
     4 _wps_ab_state.3959
     4 _wpsbars
     2 _wrtdate.4316
     2 _wrttime.4317
     8 _yes_lines.5437
     8 _yes_message.5440

different sizes in ondiosp_firm_r20327/rockbox.elf and ondiosp_firm_r20329/rockbox.elf:
    1812   1760 _gui_wps_show
      40     52 _viewportmanager_draw_statusbars

total size difference: +36