hg: jdk7/hotspot-comp/hotspot: 6791178: Specialize for zero as the compressed oop vm heap base

[vladimir.kozlov at sun.com]

Changeset: 660978a2a31a
Author:    kvn
Date:      2009-03-12 10:37 -0700
URL:       http://hg.openjdk.java.net/jdk7/hotspot-comp/hotspot/rev/660978a2a31a

6791178: Specialize for zero as the compressed oop vm heap base
Summary: Use zero based compressed oops if java heap is below 32gb and unscaled compressed oops if java heap is below 4gb.
Reviewed-by: never, twisti, jcoomes, coleenp

! agent/src/share/classes/sun/jvm/hotspot/debugger/Debugger.java
! agent/src/share/classes/sun/jvm/hotspot/debugger/DebuggerBase.java
! agent/src/share/classes/sun/jvm/hotspot/debugger/JVMDebugger.java
! agent/src/share/classes/sun/jvm/hotspot/debugger/remote/RemoteDebugger.java
! agent/src/share/classes/sun/jvm/hotspot/debugger/remote/RemoteDebuggerClient.java
! agent/src/share/classes/sun/jvm/hotspot/debugger/remote/RemoteDebuggerServer.java
! agent/src/share/classes/sun/jvm/hotspot/memory/Universe.java
! agent/src/share/classes/sun/jvm/hotspot/runtime/VM.java
! src/cpu/sparc/vm/assembler_sparc.cpp
! src/cpu/sparc/vm/sparc.ad
! src/cpu/sparc/vm/stubGenerator_sparc.cpp
! src/cpu/sparc/vm/vm_version_sparc.cpp
! src/cpu/sparc/vm/vtableStubs_sparc.cpp
! src/cpu/x86/vm/assembler_x86.cpp
! src/cpu/x86/vm/assembler_x86.hpp
! src/cpu/x86/vm/x86_64.ad
! src/os/linux/vm/os_linux.cpp
! src/os/solaris/dtrace/generateJvmOffsets.cpp
! src/os/solaris/dtrace/jhelper.d
! src/os/solaris/dtrace/libjvm_db.c
! src/os/solaris/vm/os_solaris.cpp
! src/os/windows/vm/os_windows.cpp
! src/os_cpu/linux_sparc/vm/globals_linux_sparc.hpp
! src/os_cpu/linux_x86/vm/globals_linux_x86.hpp
! src/os_cpu/solaris_sparc/vm/globals_solaris_sparc.hpp
! src/os_cpu/solaris_x86/vm/globals_solaris_x86.hpp
! src/os_cpu/windows_x86/vm/globals_windows_x86.hpp
! src/share/vm/asm/assembler.cpp
! src/share/vm/gc_implementation/g1/g1CollectedHeap.cpp
! src/share/vm/gc_implementation/parallelScavenge/parallelScavengeHeap.cpp
! src/share/vm/memory/genCollectedHeap.cpp
! src/share/vm/memory/universe.cpp
! src/share/vm/memory/universe.hpp
! src/share/vm/oops/oop.inline.hpp
! src/share/vm/opto/addnode.cpp
! src/share/vm/opto/compile.cpp
! src/share/vm/opto/connode.cpp
! src/share/vm/opto/lcm.cpp
! src/share/vm/opto/matcher.cpp
! src/share/vm/runtime/arguments.cpp
! src/share/vm/runtime/globals.hpp
! src/share/vm/runtime/os.hpp
! src/share/vm/runtime/virtualspace.cpp
! src/share/vm/runtime/virtualspace.hpp
! src/share/vm/runtime/vmStructs.cpp