title: how to get source code line from instruction address in gdb
body: <p>I'm trying to get disassembly of instruction at address A, so I write</p>
  
  <pre><code>(gdb) x/i 0x00007f8aba6ad96c
     0x7f8aba6ad96c &lt;laprintf+167&gt;:   nop
  </code></pre>
  
  <p>But how do I get which line in source code it corresponds to? debugging symbols are available.</p>