*** old/agent/doc/clhsdb.html	Wed Apr 17 20:14:25 2013
--- new/agent/doc/clhsdb.html	Wed Apr 17 20:14:24 2013

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  </p>
  
  <p>
  There is also JavaScript based SA command line interface called <a href="jsdb.html">jsdb</a>.
  But, CLHSDB supports Unix shell-like (or dbx/gdb-like) command line interface with
! support for output redirection/appending (familiar >, >>), command history and so on.
! support for output redirection/appending (familiar &gt;, &gt;&gt;), command history and so on.
  Each CLHSDB command can have zero or more arguments and optionally end with output redirection
  (or append) to a file. Commands may be stored in a file and run using <b>source</b> command.
  <b>help</b> command prints usage message for all supported commands (or a specific command)
  </p>
  

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    dumpclass { address | name } [ directory ] <font color="red">dump .class file for given Klass* or class name</font>
    dumpcodecache <font color="red">dump codecache contents</font>
    dumpheap [ file ] <font color="red">dump heap in hprof binary format</font>
    dumpideal -a | id <font color="red">dump ideal graph like debug flag -XX:+PrintIdeal</font>
    dumpilt -a | id <font color="red">dump inline tree for C2 compilation</font>
!   dumpreplaydata <address> | -a | <thread_id> [>replay.txt] <font color="red">dump replay data into a file</font>
!   dumpreplaydata &lt;address&gt; | -a | &lt;thread_id&gt; [&gt;replay.txt] <font color="red">dump replay data into a file</font>
    echo [ true | false ] <font color="red">turn on/off command echo mode</font>
    examine [ address/count ] | [ address,address] <font color="red">show contents of memory from given address</font>
    field [ type [ name fieldtype isStatic offset address ] ] <font color="red">print info about a field of HotSpot type</font>
    findpc address <font color="red">print info. about pointer location</font>
    flags [ flag ] <font color="red">show all -XX flag name value pairs. or just show given flag</font>

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  <code>
  hsdb&gt; jsload test.js
  </code>
  </pre>
  
- <h3>C2 Compilation Replay</h3>
  <p>
  When a java process crashes in compiled method, usually a core file is saved.
- The C2 replay function can reproduce the compiling process in the core.
! <a href="c2replay.html">c2replay.html</a>
! <a href="cireplay.html">cireplay.html</a>
  
  </body>
  </html>