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From "Mark Hindess (JIRA)" <j...@apache.org>
Subject [jira] Commented: (HARMONY-6291) Smallest classes set for customer application
Date Mon, 17 Aug 2009 08:04:14 GMT

    [ https://issues.apache.org/jira/browse/HARMONY-6291?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12743993#action_12743993

Mark Hindess commented on HARMONY-6291:

Daniel:  Can you provide the source for Hello.class and modify build.xml to build it?  What
are the empty files in the script directory for?

Some of the line endings were inconsistent (dos and unix line endings in the same file). 
I fixed these in r804823.

Regis, you created the new files in svn without setting the svn:eol-style property to native.
 I've fixed this in the above revision but you might want to update your subversion settings
with the correct auto-props.

> Smallest classes set for customer application
> ---------------------------------------------
>                 Key: HARMONY-6291
>                 URL: https://issues.apache.org/jira/browse/HARMONY-6291
>             Project: Harmony
>          Issue Type: New Feature
>          Components: Misc
>         Environment: Windows & Linux
>            Reporter: Daniel Gong
>            Assignee: Regis Xu
>         Attachments: minjretoolkit-new.tar.gz, minjretoolkit.tar.gz, minjretoolkit.zip,
> Now the MinJreToolkit is almost complete. It includes functional classes as well as command
line tool and ant task implemented based on them. More, for dynamic tracing, a jvmti agent
has been implemented. Both static analysis and dynamic tracing produce a type of result file
called cns (Class Name Set) file, which has an associated data structure called ClassNameSet
that can be created from a cns file, witten to a cns file and merged with a cns file. The
cns file in the conf directory contains the required classes for different jre implementations.
Now it only supports Harmony. 
> The toolkit can be used in two steps. First, employ both static analyzer and dynamic
tracer in the process of application development and test, and record necessary information
in several cns files. Second, employ the jre generator to merge these cns files and generate
a new jre from an original one.
> So far I have written a simple ant build file to handle the whole process including compile,
test, pack & javadoc. The compiling of the agent is not in because I'm still learning
ant usage. The test is also very simple, just a helloworld app:P
> To compile and use the agent: 
> windows: cl /EHsc -I %JAVA_HOME%\include\ -I %JAVA_HOME%\include\win32\ -LD ClassLoadTraceAgent.cpp
Main.cpp -FeAgent.dll
> linux: g++ -I ${JAVA_HOME}/include/ -I ${JAVA_HOME}/include/linux ClassLoadTraceAgent.cpp
Main.cpp -fPIC -shared -o libagent.so       
> usage: java -agentlib:Agent=[the path of the result cns file] [main class]
> I'll improve the toolkit by adding command line script, optimizing ant build, doing more
test and improve the algorithm if a better strategy is found.
> Everyone please feel free to give me advice or report bugs to me:)

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