RFR (XL): 8019972: PPC64 (part 9): platform files for interpreter only VM.

[Lindenmaier, Goetz]

Hi,

This time with webrev. Sorry for the double mails.

This change contains all the files in cpu/ppc and os_cpu/linux_ppc needed for
the PPC64 interpreter port on linux.

With this change you can do a core build on ppc64 and run the VM interpreter only.
It executes simple programs as jvm98.
The change requires

*         8016697: Use stubs to implement safefetch

*         8020059: The flag introduced by 8014972 is not defined ...
which will arrive soon in the staging repository.

I marked the change as XL as it contains a lot of code.  Nevertheless the
code has no impact on the existing Oracle platforms.

The change touches a single shared file, globals.hpp, removing a
special case introduced for the port.  This is because we
integrated some changes earlier than originally intended.

Please review the change.  Does it need testing on Oracle side?
http://cr.openjdk.java.net/~goetz/webrevs/8019972-ppc_files/

Best regards,
  Goetz.

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