title: llinking @_Znam and @_Znwm
body: <p>I'm new to c++ programming and currently working on an <code>llvm</code> front-end development project. When I link the object files created by llc, my linker cannot locate the following functions. I know that these are standard c++ library functions but using <code>-lstdc++</code> doesn't work. Now my question is that where are these functions defined and how can I link them with my object files, and actually what do they do?</p>
  
  <pre><code>declare noalias i8* @_Znam(i64)
  
  declare noalias i8* @_Znwm(i64)
  </code></pre>