Mercurial > hg > truffle
view agent/src/share/classes/sun/jvm/hotspot/debugger/cdbg/basic/BasicCFrame.java @ 650:54782a4cd321
6812971: SA: re-attaching to process fails
Summary: After attaching, de-attaching SA from a process, the second time attach() call fails. This happens because in VM.initialize(), Universe does not get re-initialized before it is accessed.
Reviewed-by: swamyv
author | poonam |
---|---|
date | Sun, 15 Mar 2009 18:11:46 -0700 |
parents | a61af66fc99e |
children | c18cbe5936b8 |
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/* * Copyright 2001 Sun Microsystems, Inc. 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.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(); } } }