Mercurial > hg > graal-jvmci-8
view agent/src/share/classes/sun/jvm/hotspot/oops/OopPrinter.java @ 6972:bd7a7ce2e264
6830717: replay of compilations would help with debugging
Summary: When java process crashed in compiler thread, repeat the compilation process will help finding root cause. This is done with using SA dump application class data and replay data from core dump, then use debug version of jvm to recompile the problematic java method.
Reviewed-by: kvn, twisti, sspitsyn
Contributed-by: yumin.qi@oracle.com
author | minqi |
---|---|
date | Mon, 12 Nov 2012 14:03:53 -0800 |
parents | da91efe96a93 |
children |
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/* * Copyright (c) 2000, 2012, 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.oops; import java.io.*; public class OopPrinter implements OopVisitor { public OopPrinter(PrintStream tty) { this.tty = tty; } PrintStream tty; public void prologue() { Oop.printOopValueOn(getObj(), tty); tty.println(" (object size = " + getObj().getObjectSize() + ")"); } public void epilogue() { tty.println(); } private Oop obj; public void setObj(Oop obj) { this.obj = obj; } public Oop getObj() { return obj; } private void printField(Field field) { field.printOn(tty); } public void doMetadata(MetadataField field, boolean isVMField) { printField(field); field.getValue(getObj()).printValueOn(tty); tty.println(); } public void doOop(OopField field, boolean isVMField) { printField(field); Oop.printOopValueOn(field.getValue(getObj()), tty); tty.println(); } public void doOop(NarrowOopField field, boolean isVMField) { printField(field); Oop.printOopValueOn(field.getValue(getObj()), tty); tty.println(); } public void doChar(CharField field, boolean isVMField) { printField(field); char c = field.getValue(getObj()); // Fix me: not yet complete if (Character.isLetterOrDigit(c)) tty.println(c); else tty.println((int)c); } public void doByte(ByteField field, boolean isVMField) { printField(field); tty.println(field.getValue(getObj())); } public void doBoolean(BooleanField field, boolean isVMField) { printField(field); tty.println(field.getValue(getObj())); } public void doShort(ShortField field, boolean isVMField) { printField(field); tty.println(field.getValue(getObj())); } public void doInt(IntField field, boolean isVMField) { printField(field); tty.println(field.getValue(getObj())); } public void doLong(LongField field, boolean isVMField) { printField(field); tty.println(field.getValue(getObj())); } public void doFloat(FloatField field, boolean isVMField) { printField(field); tty.println(field.getValue(getObj())); } public void doDouble(DoubleField field, boolean isVMField) { printField(field); tty.println(field.getValue(getObj())); } public void doCInt(CIntField field, boolean isVMField) { printField(field); tty.println(field.getValue(getObj())); } }