title: What is a 'linkonce' section
body: <p>What is a 'linkonce' section, and for extra kudos how does it differ from a comdat section?</p>
  
  <p>To be clear, I'm familiar with how comdat sections work, how they're used, etc.  In googling, <em>linkonce</em> is almost exclusively discussed in forums where it's assumed the meaning/intent/purpose of that section is already fairly well understood.</p>