title: What does an "Algn" of 2**2 and 2**0 mean in the output of objdump?
body: <p>What does this mean in below file? <code>2**2</code> and <code>2**0</code></p>
  
  <pre class="lang-none prettyprint-override"><code>$ objdump -h main.o
  
  main.o:     file format elf32-i386
  
  Sections:
  Idx Name          Size      VMA       LMA       File off  Algn
    0 .text         0000000b  00000000  00000000  00000034  2**2
                    CONTENTS, ALLOC, LOAD, READONLY, CODE
    1 .data         00000000  00000000  00000000  00000040  2**2
                    CONTENTS, ALLOC, LOAD, DATA
    2 .bss          00000000  00000000  00000000  00000040  2**2
                    ALLOC
    3 .note.GNU-stack 00000000  00000000  00000000  00000040  2**0
                    CONTENTS, READONLY, CODE
  </code></pre>