I have an implementation question that I'm having trouble figuring out.
I have a HIR pass that instruments method calls for some stats
gathering that I'd like to do. I collect a complete call trace
(compressed), but need a way to dump out the compressed trace when
the VM exits.
I've tried declaring a class that inherits from Action and redefines
the deinit() method to suit my purposes (and I used the
DEFINE_SESSION_ACTION_WITH_ACTION macro to register it with the
session action for my pass). The problem is that deinit() does not
seem to be called every time the VM exits. If I run "java -
showversion" for example, deinit() is called. If I run the DaCapo
antlr benchmark it isn't called.
Is this correct behavior?
Or, am I going about this all wrong? I've noticed that deinit() is
called once for each JIT pipeline my pass is a part of (2 in
server.emconf derivative). I really want a way to call a method once
when the VM exits, but if such a thing doesn't exist I can manage
with something like deinit().
Thanks,
Naveen
