title: Find function/variable definition for a reference in source code
body: <p>My project contains many files.</p>
  
  <p>Sometimes I need to know where a particular function is defined (implemented) in source code. What I currently do is text search within source files for the function name, which is very time consuming.</p>
  
  <p>My question is: Is there a better way (compiler/linker flag) to find that function definition in source files?....  Since the linker has gone through all the trouble of resolving all these references already.</p>
  
  <p>I am hoping for method better than stepping into a function call in debugger, since a function can be buried within many calls.</p>