author | stefank |
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/* |
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* Copyright (c) 2018, 2019, Oracle and/or its affiliates. All rights reserved. |
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
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* |
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* This code is free software; you can redistribute it and/or modify it |
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* under the terms of the GNU General Public License version 2 only, as |
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* published by the Free Software Foundation. |
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* |
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* This code is distributed in the hope that it will be useful, but WITHOUT |
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
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* version 2 for more details (a copy is included in the LICENSE file that |
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* accompanied this code). |
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* |
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* You should have received a copy of the GNU General Public License version |
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* 2 along with this work; if not, write to the Free Software Foundation, |
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
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* |
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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* or visit www.oracle.com if you need additional information or have any |
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* questions. |
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* |
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*/ |
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package sun.jvm.hotspot.gc.z; |
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import sun.jvm.hotspot.debugger.Address; |
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import sun.jvm.hotspot.runtime.VM; |
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import sun.jvm.hotspot.runtime.VMObject; |
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import sun.jvm.hotspot.types.AddressField; |
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import sun.jvm.hotspot.types.Type; |
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import sun.jvm.hotspot.types.TypeDataBase; |
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class ZGlobalsForVMStructs extends VMObject { |
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private static AddressField ZGlobalPhaseField; |
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private static AddressField ZGlobalSeqNumField; |
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private static AddressField ZAddressGoodMaskField; |
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private static AddressField ZAddressBadMaskField; |
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private static AddressField ZAddressWeakBadMaskField; |
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private static AddressField ZObjectAlignmentSmallShiftField; |
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private static AddressField ZObjectAlignmentSmallField; |
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static { |
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VM.registerVMInitializedObserver((o, d) -> initialize(VM.getVM().getTypeDataBase())); |
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} |
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static private synchronized void initialize(TypeDataBase db) { |
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Type type = db.lookupType("ZGlobalsForVMStructs"); |
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ZGlobalPhaseField = type.getAddressField("_ZGlobalPhase"); |
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ZGlobalSeqNumField = type.getAddressField("_ZGlobalSeqNum"); |
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ZAddressGoodMaskField = type.getAddressField("_ZAddressGoodMask"); |
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ZAddressBadMaskField = type.getAddressField("_ZAddressBadMask"); |
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ZAddressWeakBadMaskField = type.getAddressField("_ZAddressWeakBadMask"); |
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ZObjectAlignmentSmallShiftField = type.getAddressField("_ZObjectAlignmentSmallShift"); |
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ZObjectAlignmentSmallField = type.getAddressField("_ZObjectAlignmentSmall"); |
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} |
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ZGlobalsForVMStructs(Address addr) { |
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super(addr); |
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} |
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int ZGlobalPhase() { |
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return ZGlobalPhaseField.getValue(addr).getJIntAt(0); |
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} |
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int ZGlobalSeqNum() { |
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return ZGlobalSeqNumField.getValue(addr).getJIntAt(0); |
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} |
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long ZAddressGoodMask() { |
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return ZAddressGoodMaskField.getValue(addr).getJLongAt(0); |
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} |
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long ZAddressBadMask() { |
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return ZAddressBadMaskField.getValue(addr).getJLongAt(0); |
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} |
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long ZAddressWeakBadMask() { |
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return ZAddressWeakBadMaskField.getValue(addr).getJLongAt(0); |
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} |
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int ZObjectAlignmentSmallShift() { |
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return ZObjectAlignmentSmallShiftField.getValue(addr).getJIntAt(0); |
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} |
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int ZObjectAlignmentSmall() { |
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return ZObjectAlignmentSmallField.getValue(addr).getJIntAt(0); |
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} |
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} |