hg: ppc-aix-port/jdk7u/hotspot: Use stubs to implement safefetch.

[goetz.lindenmaier at sap.com]

Changeset: 60d97665b9e5
Author:    Goetz Lindenmaier
Date:      2012-07-19 14:07 +0200
URL:       http://hg.openjdk.java.net/ppc-aix-port/jdk7u/hotspot/rev/60d97665b9e5

Use stubs to implement safefetch.

On platforms where the compiler does not properly support inline
assembly safefetch can be implemented as stub routines. This also
allows to use a single implementation if an architecture is
supported on several os platforms.

! make/aix/makefiles/ppc64.make
! make/linux/makefiles/ppc64.make
! src/cpu/ppc/vm/stubGenerator_ppc.cpp
! src/cpu/ppc/vm/stubRoutines_ppc_64.cpp
! src/cpu/ppc/vm/stubRoutines_ppc_64.hpp
! src/os_cpu/aix_ppc/vm/os_aix_ppc.cpp
! src/os_cpu/linux_ppc/vm/os_linux_ppc.cpp
! src/share/vm/runtime/os.hpp
! src/share/vm/runtime/stubRoutines.cpp
! src/share/vm/runtime/stubRoutines.hpp