author | kvn |
Tue, 09 Jun 2009 16:19:10 -0700 | |
changeset 3171 | aa289b22b577 |
parent 1 | 489c9b5090e2 |
child 3261 | c7d5aae8d3f7 |
permissions | -rw-r--r-- |
1 | 1 |
/* |
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* Copyright 2000-2001 Sun Microsystems, Inc. All Rights Reserved. |
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
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* |
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* This code is free software; you can redistribute it and/or modify it |
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* under the terms of the GNU General Public License version 2 only, as |
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* published by the Free Software Foundation. |
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* |
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* This code is distributed in the hope that it will be useful, but WITHOUT |
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
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* version 2 for more details (a copy is included in the LICENSE file that |
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* accompanied this code). |
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* |
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* You should have received a copy of the GNU General Public License version |
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* 2 along with this work; if not, write to the Free Software Foundation, |
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
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* |
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* Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, |
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* CA 95054 USA or visit www.sun.com if you need additional information or |
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* have any questions. |
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* |
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*/ |
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package sun.jvm.hotspot.runtime; |
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import java.util.*; |
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import sun.jvm.hotspot.debugger.*; |
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import sun.jvm.hotspot.interpreter.*; |
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import sun.jvm.hotspot.oops.*; |
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import sun.jvm.hotspot.utilities.*; |
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public class InterpretedVFrame extends JavaVFrame { |
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/** JVM state */ |
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public Method getMethod() { |
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return getFrame().getInterpreterFrameMethod(); |
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} |
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public StackValueCollection getLocals() { |
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Method m = getMethod(); |
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int length = (int) m.getMaxLocals(); |
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if (m.isNative()) { |
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// If the method is native, getMaxLocals is not telling the truth. |
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// maxlocals then equals the size of parameters |
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length = (int) m.getSizeOfParameters(); |
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} |
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StackValueCollection result = new StackValueCollection(length); |
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// Get oopmap describing oops and int for current bci |
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OopMapCacheEntry oopMask = getMethod().getMaskFor(getBCI()); |
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// handle locals |
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for(int i = 0; i < length; i++) { |
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// Find stack location |
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Address addr = addressOfLocalAt(i); |
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// Depending on oop/int put it in the right package |
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StackValue sv; |
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if (oopMask.isOop(i)) { |
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// oop value |
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3171
aa289b22b577
6837472: com/sun/jdi/MonitorFrameInfo.java fails with AggressiveOpts in 6u14
kvn
parents:
1
diff
changeset
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sv = new StackValue(addr.getOopHandleAt(0), 0); |
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} else { |
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// integer |
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// Fetch a signed integer the size of a stack slot |
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sv = new StackValue(addr.getCIntegerAt(0, VM.getVM().getAddressSize(), false)); |
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} |
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result.add(sv); |
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} |
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return result; |
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} |
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public StackValueCollection getExpressions() { |
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int length = getFrame().getInterpreterFrameExpressionStackSize(); |
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if (getMethod().isNative()) { |
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// If the method is native, there is no expression stack |
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length = 0; |
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} |
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int nofLocals = (int) getMethod().getMaxLocals(); |
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StackValueCollection result = new StackValueCollection(length); |
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// Get oopmap describing oops and int for current bci |
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OopMapCacheEntry oopMask = getMethod().getMaskFor(getBCI()); |
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for(int i = 0; i < length; i++) { |
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// Find stack location |
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Address addr = addressOfExpressionStackAt(i); |
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// Depending on oop/int put it in the right package |
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StackValue sv; |
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if (oopMask.isOop(i + nofLocals)) { |
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// oop value |
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3171
aa289b22b577
6837472: com/sun/jdi/MonitorFrameInfo.java fails with AggressiveOpts in 6u14
kvn
parents:
1
diff
changeset
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sv = new StackValue(addr.getOopHandleAt(0), 0); |
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} else { |
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// integer |
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// Fetch a signed integer the size of a stack slot |
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sv = new StackValue(addr.getCIntegerAt(0, VM.getVM().getAddressSize(), false)); |
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} |
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result.add(sv); |
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} |
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return result; |
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} |
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/** Returns List<MonitorInfo> */ |
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public List getMonitors() { |
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List result = new ArrayList(5); |
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for (BasicObjectLock current = getFrame().interpreterFrameMonitorEnd(); |
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current.address().lessThan(getFrame().interpreterFrameMonitorBegin().address()); |
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current = getFrame().nextMonitorInInterpreterFrame(current)) { |
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3171
aa289b22b577
6837472: com/sun/jdi/MonitorFrameInfo.java fails with AggressiveOpts in 6u14
kvn
parents:
1
diff
changeset
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result.add(new MonitorInfo(current.obj(), current.lock(), false, false)); |
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} |
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return result; |
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} |
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/** Test operation */ |
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public boolean isInterpretedFrame() { return true; } |
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/** Package-internal constructor */ |
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InterpretedVFrame(Frame fr, RegisterMap regMap, JavaThread thread) { |
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super(fr, regMap, thread); |
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} |
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/** Accessor for Byte Code Index (NOTE: access to BCP is not allowed |
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in this system; see Frame.java) */ |
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public int getBCI() { |
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return getFrame().getInterpreterFrameBCI(); |
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} |
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/** Setter for Byte Code Index */ |
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// FIXME: not yet implementable |
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// public void setBCI(int bci) { |
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// getFrame().setInterpreterFrameBCI(bci); |
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// } |
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public void verify() { |
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} |
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//-------------------------------------------------------------------------------- |
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// Internals only below this point |
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// |
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private Address addressOfLocalAt(int index) { |
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if (Assert.ASSERTS_ENABLED) { |
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Assert.that(getFrame().isInterpretedFrame(), "frame should be an interpreted frame"); |
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} |
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return fr.addressOfInterpreterFrameLocal(index); |
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} |
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private Address addressOfExpressionStackAt(int index) { |
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return fr.addressOfInterpreterFrameExpressionStackSlot(index); |
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} |
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} |