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Date: Wed, 27 Sep 2006 22:53:52 -0700 (PDT)
From: "Geir Magnusson Jr (JIRA)" <jira@apache.org>
To: harmony-commits@incubator.apache.org
Subject: [jira] Assigned: (HARMONY-1575) [drlvm] [jvmti] Return from java to
 native and from native to java code needs to be fixed
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     [ http://issues.apache.org/jira/browse/HARMONY-1575?page=all ]

Geir Magnusson Jr reassigned HARMONY-1575:
------------------------------------------

    Assignee: Geir Magnusson Jr

> [drlvm] [jvmti] Return from java to native and from native to java code needs to be fixed
> -----------------------------------------------------------------------------------------
>
>                 Key: HARMONY-1575
>                 URL: http://issues.apache.org/jira/browse/HARMONY-1575
>             Project: Harmony
>          Issue Type: Bug
>          Components: DRLVM
>            Reporter: Gregory Shimansky
>         Assigned To: Geir Magnusson Jr
>         Attachments: return-to-and-from-native-fix.patch
>
>
> I didn't think of so many native-java-native transitions before. It appears that native is called everywhere in hidden calls to class loader or in explicit calls like System.out.println. 
> Single stepping back from java to native requres predicting a next bytecode after *return one. But there is an assertion that frame is java. If the frame is native it fails. This assertion was removed because it cannot be satisfied always. But instead I removed incorrect assumption comments on returning from native code back to Java (it it returns to Java at all) to start single stepping back in Java code. If the calling code was not Java single stepping won't happen, it will just wait another native from Java transition.

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