Mercurial > hg > truffle
view agent/src/share/classes/sun/jvm/hotspot/debugger/cdbg/basic/BasicCFrame.java @ 3972:4f93f0d00802
7059019: G1: add G1 support to the SA
Summary: Extend the SA to recognize the G1CollectedHeap and implement any code that's needed by our serviceability tools (jmap, jinfo, jstack, etc.) that depend on the SA.
Reviewed-by: never, poonam, johnc
author | tonyp |
---|---|
date | Tue, 20 Sep 2011 09:59:59 -0400 |
parents | c18cbe5936b8 |
children |
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/* * Copyright (c) 2001, 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.debugger.cdbg.basic; import sun.jvm.hotspot.debugger.*; import sun.jvm.hotspot.debugger.cdbg.*; /** Basic implementation of the CFrame interface providing some of the functionality in a platform-independent manner. */ public abstract class BasicCFrame implements CFrame { private CDebugger dbg; protected BasicCFrame(CDebugger dbg) { this.dbg = dbg; } protected CDebugger dbg() { return dbg; } public LoadObject loadObjectForPC() { return dbg.loadObjectContainingPC(pc()); } public BlockSym blockForPC() { LoadObject lo = loadObjectForPC(); if (lo == null) { return null; } return lo.debugInfoForPC(pc()); } public ClosestSymbol closestSymbolToPC() { LoadObject lo = loadObjectForPC(); if (lo == null) { return null; } return lo.closestSymbolToPC(pc()); } public void iterateLocals(ObjectVisitor v) { BlockSym block = blockForPC(); while (block != null) { for (int i = 0; i < block.getNumLocals(); i++) { final LocalSym local = block.getLocal(i); Type t = local.getType(); // t should not be null, but be robust in case of bugs in // debug info if (t != null) { t.iterateObject(localVariableBase().addOffsetTo(local.getFrameOffset()), v, new NamedFieldIdentifier() { public Type getType() { return local.getType(); } public String getName() { return local.getName(); } public String toString() { return getName(); } }); } } block = block.getParent(); } } }