title: Use objcopy --gap-fill only for special section
body: <p>Is it possible to use the objcopy-parameter --gap-fill only for some specific sections? I don't want to fill up everything with e.g. 0xAA because I want to preserv some old section in my existing EEPROM. It is bad when they are overwritten with e.g. 0xAA. But in some other section I exactly want this behaviour.</p>
  
  <p>Thanks for helping.</p>