title: How to allow non-root user to call chroot(2)?
body: <p>Is it possible to allow a certain user (except root user) to call <code>chroot(2)</code>?
  I'm developing a daemon process which calls <code>chroot(2)</code>,
  but I want to avoid running it under root account.</p>
  
  <p>If it requires to modify kernel source, please advice me about it.</p>
  
  <p>platform: linux (or freebsd)</p>