view src/share/tools/LogCompilation/README @ 4547:a3cdfa2be94e

Allow to intrinsify an invoke with a deoptimize node. Make debug output more relaxed wrt to null in FrameMap.method
author Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
date Thu, 09 Feb 2012 20:05:59 +0100
parents 07d449658fc7
children 2aff40cb4703
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This is a very rough tool for parsing -XX:+LogCompilation output.
It's main purpose is to recreate output similar to
-XX:+PrintCompilation -XX:+PrintInlining output from a debug JVM.  It
requires a 1.5 JDK to build and simply typing make should build it.

It produces a jar file, logc.jar, that can be run on the
hotspot.log from LogCompilation output like this:

  java -jar logc.jar hotspot.log

This will produce something like the normal PrintCompilation output.
Adding the -i option with also report inlining like PrintInlining.

More information about the LogCompilation output can be found at 

http://wikis.sun.com/display/HotSpotInternals/LogCompilation+overview
http://wikis.sun.com/display/HotSpotInternals/PrintCompilation
http://wikis.sun.com/display/HotSpotInternals/LogCompilation+tool