Hi, I am doing a little bit of research as part of a class project on
Dalvik runtime security.

After reading earlier discussions, my understanding is that since a
Dalvik VM is contained in a process, all runtime permission checking
comes down to process UID and GID checking.  So does the Dalvik
runtime itself does any permission checking at all? Can someone help
to explain the sequence of events when a particular app running as a
Dalvik VM needs to check whether or not it has the permissions needed
to do certain actions or to enforce permission settings?

Thanks very much,
-Jimmy

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