title: In Iinux kernel, what is the meaning of .data and .long?
body: <pre><code>.data
    ENTRY(sys_call_table)
      .long SYMBOL_NAME(sys_ni_call)           /* 0 */
      .long SYMBOL_NAME(sys_exit)
      .long SYMBOL_NAME(sys_fork)
      ...
      .long SYMBOL_NAME(sys_vfork)             /* 190 */
  </code></pre>
  
  <p>I read this source code. I can't find <code>.data</code> or <code>.long</code> definition in the source. </p>