Mercurial > hg > truffle
view agent/src/share/classes/sun/jvm/hotspot/code/PCDesc.java @ 8790:7f0cb32dd233
8004241: NPG: Metaspace occupies more memory than specified by -XX:MaxMetaspaceSize option
Summary: Enforce MaxMetaspaceSize for both metaspace parts, check MaxMetaspaceSize against "reserved", not "capacity"
Reviewed-by: jmasa, johnc
author | mgerdin |
---|---|
date | Thu, 21 Mar 2013 09:07:43 +0100 |
parents | 7588156f5cf9 |
children |
line wrap: on
line source
/* * Copyright (c) 2000, 2010, 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.code; import java.io.*; import java.util.*; import sun.jvm.hotspot.debugger.*; import sun.jvm.hotspot.runtime.*; import sun.jvm.hotspot.types.*; /** PcDescs map a physical PC (given as offset from start of nmethod) to the corresponding source scope and byte code index. */ public class PCDesc extends VMObject { private static CIntegerField pcOffsetField; private static CIntegerField scopeDecodeOffsetField; private static CIntegerField objDecodeOffsetField; private static CIntegerField pcFlagsField; private static int reexecuteMask; private static int isMethodHandleInvokeMask; private static int returnOopMask; static { VM.registerVMInitializedObserver(new Observer() { public void update(Observable o, Object data) { initialize(VM.getVM().getTypeDataBase()); } }); } private static void initialize(TypeDataBase db) { Type type = db.lookupType("PcDesc"); pcOffsetField = type.getCIntegerField("_pc_offset"); scopeDecodeOffsetField = type.getCIntegerField("_scope_decode_offset"); objDecodeOffsetField = type.getCIntegerField("_obj_decode_offset"); pcFlagsField = type.getCIntegerField("_flags"); reexecuteMask = db.lookupIntConstant("PcDesc::PCDESC_reexecute"); isMethodHandleInvokeMask = db.lookupIntConstant("PcDesc::PCDESC_is_method_handle_invoke"); returnOopMask = db.lookupIntConstant("PcDesc::PCDESC_return_oop"); } public PCDesc(Address addr) { super(addr); } // FIXME: add additional constructor probably needed for ScopeDesc::sender() public int getPCOffset() { return (int) pcOffsetField.getValue(addr); } public int getScopeDecodeOffset() { return ((int) scopeDecodeOffsetField.getValue(addr)); } public int getObjDecodeOffset() { return ((int) objDecodeOffsetField.getValue(addr)); } public Address getRealPC(NMethod code) { return code.codeBegin().addOffsetTo(getPCOffset()); } public boolean getReexecute() { int flags = (int)pcFlagsField.getValue(addr); return (flags & reexecuteMask) != 0; } public boolean isMethodHandleInvoke() { int flags = (int)pcFlagsField.getValue(addr); return (flags & isMethodHandleInvokeMask) != 0; } public void print(NMethod code) { printOn(System.out, code); } public void printOn(PrintStream tty, NMethod code) { tty.println("PCDesc(" + getRealPC(code) + "):"); for (ScopeDesc sd = code.getScopeDescAt(getRealPC(code)); sd != null; sd = sd.sender()) { tty.print(" "); sd.getMethod().printValueOn(tty); tty.print(" @" + sd.getBCI()); tty.print(" reexecute=" + sd.getReexecute()); tty.println(); } } }