title: pthread_t to gdb thread id
body: <p>Does anyone know a way to go from a pthread_t to what GDB displays with info threads?</p>
  
  <p>So I have:</p>
  
  <pre><code>(gdb) info threads
    37 Thread 22887  0xb7704422 in __kernel_vsyscall ()
    36 Thread 22926  0xb7704422 in __kernel_vsyscall ()
    35 Thread 22925  0xb7704422 in __kernel_vsyscall ()
    34 Thread 22924  0xb7704422 in __kernel_vsyscall ()
    33 Thread 22922  0xb7704422 in __kernel_vsyscall ()
    32 Thread 22921  0xb7704422 in __kernel_vsyscall ()
  
  (gdb) p m_messageQueue-&gt;m_creationThread
  $3 = 2694822768
  (gdb) p/x m_messageQueue-&gt;m_creationThread
  $4 = 0xa09fbb70
  </code></pre>
  
  <p>Does anyone know how I figure out which thread this is?  It would appear to be 22768, but none of my threads go that low.</p>