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* Add a Field to java.lang.Object
@ 2011-06-08 17:20 Noah Heusser
  2011-06-08 18:31 ` Andrew Haley
  0 siblings, 1 reply; 3+ messages in thread
From: Noah Heusser @ 2011-06-08 17:20 UTC (permalink / raw)
  To: java


I'm trying to add an new extra field into java.lang.Object. I need that
to do some memory synchronization via Network.

If I just insert the new Field in libjava/java/lang/Object.h (access
form the Java World is not needed) I get a segmentation fault whenever I
try to run a Java Software using that Object.h. (It does no matter
whether I add it to _JvObjectPrefix or java::lang::Object)

If the JV_HASH_SYNCHRONIZATION Preprocessor Variable is not defined an
extra Filed sync_info gets inserted in Object.h.
But everywhere where extra Code is inserted depending on
JV_HASH_SYNCHRONIZATION it seems to deal with whether or not the Garbage
Collector needs to scan the Object.

If I add the Field in libjava/java/lang/ I get a compile
Error when I compile gcj:
../../../../gcc-src/libjava/java/lang/ internal
compiler error: Segmentation fault

What extra change is needed after adding a Filed to Object?

Thanks for your Help

^ permalink raw reply	[flat|nested] 3+ messages in thread

end of thread, other threads:[~2011-06-10  9:39 UTC | newest]

Thread overview: 3+ messages (download: mbox.gz / follow: Atom feed)
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2011-06-08 17:20 Add a Field to java.lang.Object Noah Heusser
2011-06-08 18:31 ` Andrew Haley
2011-06-10  9:39   ` Noah Heusser

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