title: How to know if certain function exists and has been called
body: <p>I've recently started with x86 assembler, but I can't find any method to know if a certain function exists in the code and if it's been called in an execution or not.</p>
  
  <p>For example, I've got a code with a function called "Sum", I need a command or anything that let me know if "Sum" exists in the assembler code and it's been called in an execution.</p>
  
  <p>Thanks in advance
  Luthor</p>