Mercurial > hg > truffle
view agent/src/share/classes/sun/jvm/hotspot/runtime/PerfDataEntry.java @ 12704:0e998f0daddf
Code cache: make sure we collect statistics even if the compiler is not recognized
author | Gilles Duboscq <duboscq@ssw.jku.at> |
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date | Thu, 07 Nov 2013 11:17:23 +0100 |
parents | c18cbe5936b8 |
children |
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/* * Copyright (c) 2004, 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 Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA * or visit www.oracle.com if you need additional information or have any * questions. * */ package sun.jvm.hotspot.runtime; import java.util.*; import sun.jvm.hotspot.debugger.*; import sun.jvm.hotspot.oops.*; import sun.jvm.hotspot.types.*; import sun.jvm.hotspot.utilities.*; public class PerfDataEntry extends VMObject { private static JIntField entryLengthField; private static JIntField nameOffsetField; private static JIntField vectorLengthField; private static JByteField dataTypeField; private static JByteField flagsField; private static JByteField dataUnitsField; private static JByteField dataVariabilityField; private static JIntField dataOffsetField; static { VM.registerVMInitializedObserver(new Observer() { public void update(Observable o, Object data) { initialize(VM.getVM().getTypeDataBase()); } }); } private static synchronized void initialize(TypeDataBase db) { Type type = db.lookupType("PerfDataEntry"); entryLengthField = type.getJIntField("entry_length"); nameOffsetField = type.getJIntField("name_offset"); vectorLengthField = type.getJIntField("vector_length"); dataTypeField = type.getJByteField("data_type"); flagsField = type.getJByteField("flags"); dataUnitsField = type.getJByteField("data_units"); dataVariabilityField = type.getJByteField("data_variability"); dataOffsetField = type.getJIntField("data_offset"); } public PerfDataEntry(Address addr) { super(addr); } // Accessors public int entryLength() { return (int) entryLengthField.getValue(addr); } public int nameOffset() { return (int) nameOffsetField.getValue(addr); } public int vectorLength() { return (int) vectorLengthField.getValue(addr); } // returns one of the constants in BasicType class public int dataType() { char ch = (char) (byte) dataTypeField.getValue(addr); return BasicType.charToType(ch); } public byte flags() { return (byte) flagsField.getValue(addr); } public boolean supported() { return (flags() & 0x1) != 0; } // NOTE: Keep this in sync with PerfData::Units enum in VM code public interface PerfDataUnits { public static final int U_None = 1; public static final int U_Bytes = 2; public static final int U_Ticks = 3; public static final int U_Events = 4; public static final int U_String = 5; public static final int U_Hertz = 6; } // returns one of the constants in PerfDataUnits public int dataUnits() { return (int) dataUnitsField.getValue(addr); } // NOTE: Keep this in sync with PerfData::Variability enum in VM code public interface PerfDataVariability { public static final int V_Constant = 1; public static final int V_Monotonic = 2; public static final int V_Variable = 3; } // returns one of the constants in PerfDataVariability public int dataVariability() { return (int) dataVariabilityField.getValue(addr); } public int dataOffset() { return (int) dataOffsetField.getValue(addr); } public String name() { int off = nameOffset(); return CStringUtilities.getString(addr.addOffsetTo(off)); } public boolean booleanValue() { if (Assert.ASSERTS_ENABLED) { Assert.that(vectorLength() == 0 && dataType() == BasicType.tBoolean, "not a boolean"); } return addr.getJBooleanAt(dataOffset()); } public char charValue() { if (Assert.ASSERTS_ENABLED) { Assert.that(vectorLength() == 0 && dataType() == BasicType.tChar, "not a char"); } return addr.getJCharAt(dataOffset()); } public byte byteValue() { if (Assert.ASSERTS_ENABLED) { Assert.that(vectorLength() == 0 && dataType() == BasicType.tByte, "not a byte"); } return addr.getJByteAt(dataOffset()); } public short shortValue() { if (Assert.ASSERTS_ENABLED) { Assert.that(vectorLength() == 0 && dataType() == BasicType.tShort, "not a short"); } return addr.getJShortAt(dataOffset()); } public int intValue() { if (Assert.ASSERTS_ENABLED) { Assert.that(vectorLength() == 0 && dataType() == BasicType.tInt, "not an int"); } return addr.getJIntAt(dataOffset()); } public long longValue() { if (Assert.ASSERTS_ENABLED) { Assert.that(vectorLength() == 0 && dataType() == BasicType.tLong, "not a long"); } return addr.getJLongAt(dataOffset()); } public float floatValue() { if (Assert.ASSERTS_ENABLED) { Assert.that(vectorLength() == 0 && dataType() == BasicType.tFloat, "not a float"); } return addr.getJFloatAt(dataOffset()); } public double doubleValue() { if (Assert.ASSERTS_ENABLED) { Assert.that(vectorLength() == 0 && dataType() == BasicType.tDouble, "not a double"); } return addr.getJDoubleAt(dataOffset()); } public boolean[] booleanArrayValue() { int len = vectorLength(); if (Assert.ASSERTS_ENABLED) { Assert.that(len > 0 && dataType() == BasicType.tBoolean, "not a boolean vector"); } boolean[] res = new boolean[len]; final int off = dataOffset(); final long size = getHeap().getBooleanSize(); for (int i = 0; i < len; i++) { res[i] = addr.getJBooleanAt(off + i * size); } return res; } public char[] charArrayValue() { int len = vectorLength(); if (Assert.ASSERTS_ENABLED) { Assert.that(len > 0 && dataType() == BasicType.tChar, "not a char vector"); } char[] res = new char[len]; final int off = dataOffset(); final long size = getHeap().getCharSize(); for (int i = 0; i < len; i++) { res[i] = addr.getJCharAt(off + i * size); } return res; } public byte[] byteArrayValue() { int len = vectorLength(); if (Assert.ASSERTS_ENABLED) { Assert.that(len > 0 && dataType() == BasicType.tByte, "not a byte vector"); } byte[] res = new byte[len]; final int off = dataOffset(); final long size = getHeap().getByteSize(); for (int i = 0; i < len; i++) { res[i] = addr.getJByteAt(off + i * size); } return res; } public short[] shortArrayValue() { int len = vectorLength(); if (Assert.ASSERTS_ENABLED) { Assert.that(len > 0 && dataType() == BasicType.tShort, "not a short vector"); } short[] res = new short[len]; final int off = dataOffset(); final long size = getHeap().getShortSize(); for (int i = 0; i < len; i++) { res[i] = addr.getJShortAt(off + i * size); } return res; } public int[] intArrayValue() { int len = vectorLength(); if (Assert.ASSERTS_ENABLED) { Assert.that(len > 0 && dataType() == BasicType.tInt, "not an int vector"); } int[] res = new int[len]; final int off = dataOffset(); final long size = getHeap().getIntSize(); for (int i = 0; i < len; i++) { res[i] = addr.getJIntAt(off + i * size); } return res; } public long[] longArrayValue() { int len = vectorLength(); if (Assert.ASSERTS_ENABLED) { Assert.that(len > 0 && dataType() == BasicType.tLong, "not a long vector"); } long[] res = new long[len]; final int off = dataOffset(); final long size = getHeap().getLongSize(); for (int i = 0; i < len; i++) { res[i] = addr.getJLongAt(off + i * size); } return res; } public float[] floatArrayValue() { int len = vectorLength(); if (Assert.ASSERTS_ENABLED) { Assert.that(len > 0 && dataType() == BasicType.tFloat, "not a float vector"); } float[] res = new float[len]; final int off = dataOffset(); final long size = getHeap().getFloatSize(); for (int i = 0; i < len; i++) { res[i] = addr.getJFloatAt(off + i * size); } return res; } public double[] doubleArrayValue() { int len = vectorLength(); if (Assert.ASSERTS_ENABLED) { Assert.that(len > 0 && dataType() == BasicType.tDouble, "not a double vector"); } double[] res = new double[len]; final int off = dataOffset(); final long size = getHeap().getDoubleSize(); for (int i = 0; i < len; i++) { res[i] = addr.getJDoubleAt(off + i * size); } return res; } // value as String public String valueAsString() { int dataType = dataType(); int len = vectorLength(); String str = null; if (len == 0) { // scalar switch (dataType) { case BasicType.tBoolean: str = Boolean.toString(booleanValue()); break; case BasicType.tChar: str = "'" + Character.toString(charValue()) + "'"; break; case BasicType.tByte: str = Byte.toString(byteValue()); break; case BasicType.tShort: str = Short.toString(shortValue()); break; case BasicType.tInt: str = Integer.toString(intValue()); break; case BasicType.tLong: str = Long.toString(longValue()); break; case BasicType.tFloat: str = Float.toString(floatValue()); break; case BasicType.tDouble: str = Double.toString(doubleValue()); break; default: str = "<unknown scalar value>"; break; } } else { // vector switch (dataType) { case BasicType.tBoolean: { boolean[] res = booleanArrayValue(); StringBuffer buf = new StringBuffer(); buf.append('['); for (int i = 0; i < res.length; i++) { buf.append(Boolean.toString(res[i])); buf.append(", "); } buf.append(']'); str = buf.toString(); break; } case BasicType.tChar: { // char[] is returned as a String str = new String(charArrayValue()); break; } case BasicType.tByte: { // byte[] is returned as a String try { str = new String(byteArrayValue(), "US-ASCII"); } catch (java.io.UnsupportedEncodingException e) { str = "can't decode string : " + e.getMessage(); } break; } case BasicType.tShort: { short[] res = shortArrayValue(); StringBuffer buf = new StringBuffer(); buf.append('['); for (int i = 0; i < res.length; i++) { buf.append(Short.toString(res[i])); buf.append(", "); } buf.append(']'); str = buf.toString(); break; } case BasicType.tInt: { int[] res = intArrayValue(); StringBuffer buf = new StringBuffer(); buf.append('['); for (int i = 0; i < res.length; i++) { buf.append(Integer.toString(res[i])); buf.append(", "); } buf.append(']'); str = buf.toString(); break; } case BasicType.tLong: { long[] res = longArrayValue(); StringBuffer buf = new StringBuffer(); buf.append('['); for (int i = 0; i < res.length; i++) { buf.append(Long.toString(res[i])); buf.append(", "); } buf.append(']'); str = buf.toString(); break; } case BasicType.tFloat: { float[] res = floatArrayValue(); StringBuffer buf = new StringBuffer(); buf.append('['); for (int i = 0; i < res.length; i++) { buf.append(Float.toString(res[i])); buf.append(", "); } buf.append(']'); str = buf.toString(); break; } case BasicType.tDouble: { double[] res = doubleArrayValue(); StringBuffer buf = new StringBuffer(); buf.append('['); for (int i = 0; i < res.length; i++) { buf.append(Double.toString(res[i])); buf.append(", "); } buf.append(']'); str = buf.toString(); break; } default: str = "<unknown vector value>"; break; } } // add units switch (dataUnits()) { case PerfDataUnits.U_None: break; case PerfDataUnits.U_Bytes: str += " byte(s)"; break; case PerfDataUnits.U_Ticks: str += " tick(s)"; break; case PerfDataUnits.U_Events: str += " event(s)"; break; case PerfDataUnits.U_String: break; case PerfDataUnits.U_Hertz: str += " Hz"; break; } return str; } // -- Internals only below this point private ObjectHeap getHeap() { return VM.getVM().getObjectHeap(); } }