[#RVM-33] JDWP & JVMTI support

RVM

JDWP & JVMTI support

Created: 12/Jun/07 04:22 AM Updated: 28/Jul/08 03:12 PM

Component/s:

Runtime

Affects Version/s:

None

Fix Version/s:

1000

Time Tracking:

Original Estimate:

11 weeks

Remaining Estimate:

11 weeks

Time Spent:

Not Specified

File Attachments:

RVM-33-collective-patch-against-gcp95 (292 kB)

Issue Links:

Related

This issue relates to:

RVM-240 Interpreter

Description

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Adding JDWP & JVMTI support
JDWP & JVMTI are standards introduced by sun to uniform the way JVM[s] are debugged/queried. They are not mandatory nor do they form requirements to comply with the JVM standard
Java Debug Wire Protocol is an interface specification to debug/query the JVM status. It defines the format of information and requests transferred between the process being debugged and the debugger front end. JVMTI s a low-level native interface ( based on JNI) that defines the services a Java virtual machine provides for tools such as debuggers and profilers(which they are implemented as agents).

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Eslam AlMorshdy added a comment - 01/Aug/07 12:25 PM

Collective patch for classpath-0.95 of the ongoing RVM-33
included
classpath-cvs.classpath30275
classpath-cvs.~~RVM-26~~
classpath-cvs.~~RVM-77~~

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Eslam AlMorshdy added a comment - 30/Aug/07 02:25 AM

helpful commands

-Running the rvm in server mode waiting for a consuming IDE
./rvm -Xms256m -Xmx1024m -X:processors=1 -X:runjdwp:transport=dt_socket,address=localhost:1234,server=y,suspend=n -X:use:rvm:socketimpl=y

Spying on the protocol
=================
In the eclipse 3.3RC4 installation run the following (older versions fail throwing exception)
java -cp plugins/org.eclipse.jdt.debug_3.3.0.v20070530a/jdimodel.jar:plugins/org.eclipse.osgi_3.3.0.v20070530.jar:plugins/com.ibm.icu_3.6.1.v20070417.jar org/eclipse/jdi/internal/spy/TcpipSpy 6900 localhost 1234

Testing with RvmSocket Implementation
===============================
add the following

X:use:rvm:socketimpl=y

IDE
===
You can attach a running rvm instance using eclipse->run->debg-
you may want to increase debugger time out in eclipse->preferences->java->OpenDebugDialog->Remotejava application