git: openjdk/mobile: 8234794: AArch64: runtime/memory/ReadFromNoaccessArea.java crashes

[duke]

Changeset: aea0a575
Author:    Nick Gasson <ngasson at openjdk.org>
Date:      2019-12-19 09:47:33 +0000
URL:       https://git.openjdk.java.net/mobile/commit/aea0a575

8234794: AArch64: runtime/memory/ReadFromNoaccessArea.java crashes

Try to map CDS shared space at 4G aligned address on AArch64

Reviewed-by: adinn, aph, jiangli, iklam

! src/hotspot/cpu/aarch64/globalDefinitions_aarch64.hpp
! src/hotspot/cpu/aarch64/macroAssembler_aarch64.cpp
! src/hotspot/cpu/aarch64/macroAssembler_aarch64.hpp
! src/hotspot/cpu/ppc/globalDefinitions_ppc.hpp
! src/hotspot/share/memory/metaspace.cpp
! src/hotspot/share/memory/metaspace.hpp
! src/hotspot/share/memory/metaspaceShared.cpp
! test/hotspot/jtreg/runtime/cds/appcds/SharedBaseAddress.java