RFR(XS): 8144851: java/lang/StackWalker/LocalsAndOperands.java: SEGV in StackValue::create_stack_value

[Roland Westrelin]

http://cr.openjdk.java.net/~roland/8144851/webrev.00/

The crash occurs because the local which is retrieved by the stack walking code is stored in rbp. The correct rbp location is only kept in the RegisterMap if _update_map is true for that RegisterMap which is never true for vframeStream.

Roland.