title: objdump to extract contents of text segment to a binary format
body: <p>How do we use objdump to output to a binary file?</p>
  
  <p>This is definitely not the right way to do so:</p>
  
  <pre>
  objdump -s -j .text /path/firmware.ko > /content.bin
  </pre>
  
  <p>as it is only presenting text format. I only require the bytes of the text segment to be extracted and to be set in binary forms.</p>