Mercurial > hg > graal-jvmci-8
view agent/src/share/classes/sun/jvm/hotspot/oops/RetData.java @ 5981:4bec1b1f7b33
7156960: Incorrect copyright headers in parts of the Serviceability agent
Summary: Errant files added as part of 7088955 fix. The Copyright information now corrected with gpl-header template
Reviewed-by: sla, ohair, mbykov
author | minqi |
---|---|
date | Wed, 28 Mar 2012 14:27:38 -0700 |
parents | f6f3bb0ee072 |
children | 79f492f184d0 |
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/* * Copyright (c) 2011, Oracle and/or its affiliates. All rights reserved. * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. * * This code is free software; you can redistribute it and/or modify it * under the terms of the GNU General Public License version 2 only, as * published by the Free Software Foundation. * * This code is distributed in the hope that it will be useful, but WITHOUT * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License * version 2 for more details (a copy is included in the LICENSE file that * accompanied this code). * * You should have received a copy of the GNU General Public License version * 2 along with this work; if not, write to the Free Software Foundation, * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. * * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, * CA 95054 USA or visit www.sun.com if you need additional information or * have any questions. * */ package sun.jvm.hotspot.oops; import java.io.*; import java.util.*; import sun.jvm.hotspot.debugger.*; import sun.jvm.hotspot.runtime.*; import sun.jvm.hotspot.types.*; import sun.jvm.hotspot.utilities.*; // RetData // // A RetData is used to access profiling information for a ret bytecode. // It is composed of a count of the number of times that the ret has // been executed, followed by a series of triples of the form // (bci, count, di) which count the number of times that some bci was the // target of the ret and cache a corresponding data displacement. public class RetData extends CounterData { static final int bci0Offset = counterCellCount; static final int count0Offset = bci0Offset + 1; static final int displacement0Offset = count0Offset + 1; static final int retRowCellCount = (displacement0Offset + 1) - bci0Offset; public RetData(DataLayout layout) { super(layout); //assert(layout.tag() == DataLayout.retDataTag, "wrong type"); } static final int noBci = -1; // value of bci when bci1/2 are not in use. static int staticCellCount() { return counterCellCount + MethodData.BciProfileWidth * retRowCellCount; } public int cellCount() { return staticCellCount(); } static int rowLimit() { return MethodData.BciProfileWidth; } static int bciCellIndex(int row) { return bci0Offset + row * retRowCellCount; } static int bciCountCellIndex(int row) { return count0Offset + row * retRowCellCount; } static int bciDisplacementCellIndex(int row) { return displacement0Offset + row * retRowCellCount; } // Direct accessors int bci(int row) { return intAt(bciCellIndex(row)); } int bciCount(int row) { return uintAt(bciCountCellIndex(row)); } int bciDisplacement(int row) { return intAt(bciDisplacementCellIndex(row)); } // Code generation support static int bciOffset(int row) { return cellOffset(bciCellIndex(row)); } static int bciCountOffset(int row) { return cellOffset(bciCountCellIndex(row)); } static int bciDisplacementOffset(int row) { return cellOffset(bciDisplacementCellIndex(row)); } public void printDataOn(PrintStream st) { printShared(st, "RetData"); int row; int entries = 0; for (row = 0; row < rowLimit(); row++) { if (bci(row) != noBci) entries++; } st.println("count(" + count() + ") entries(" + entries + ")"); for (row = 0; row < rowLimit(); row++) { if (bci(row) != noBci) { tab(st); st.println(" bci(" + bci(row) + ": count(" + bciCount(row) + ") displacement(" + bciDisplacement(row) + "))"); } } } }