TCF Debugger: Fix build error against latest CDT

2 files changed, 1000 insertions, 951 deletions

diff --git a/plugins/org.eclipse.tm.tcf.cdt.ui/META-INF/MANIFEST.MF b/plugins/org.eclipse.tm.tcf.cdt.ui/META-INF/MANIFEST.MF
index fd98a9eb8..fca221a7a 100644
--- a/plugins/org.eclipse.tm.tcf.cdt.ui/META-INF/MANIFEST.MF
+++ b/plugins/org.eclipse.tm.tcf.cdt.ui/META-INF/MANIFEST.MF
@@ -14,7 +14,7 @@ Require-Bundle: org.eclipse.core.runtime,
  org.eclipse.cdt.core,
  org.eclipse.cdt.ui,
  org.eclipse.cdt.debug.core,
- org.eclipse.cdt.debug.ui,
+ org.eclipse.cdt.debug.ui;bundle-version="7.0.0",
  org.eclipse.tm.tcf.core,
  org.eclipse.tm.tcf.debug,
  org.eclipse.tm.tcf.debug.ui,
diff --git a/plugins/org.eclipse.tm.tcf.cdt.ui/src/org/eclipse/tm/internal/tcf/cdt/ui/disassembly/TCFDisassemblyBackend.java b/plugins/org.eclipse.tm.tcf.cdt.ui/src/org/eclipse/tm/internal/tcf/cdt/ui/disassembly/TCFDisassemblyBackend.java
index c1f773f91..596bfc3e9 100644
--- a/plugins/org.eclipse.tm.tcf.cdt.ui/src/org/eclipse/tm/internal/tcf/cdt/ui/disassembly/TCFDisassemblyBackend.java
+++ b/plugins/org.eclipse.tm.tcf.cdt.ui/src/org/eclipse/tm/internal/tcf/cdt/ui/disassembly/TCFDisassemblyBackend.java
@@ -1,950 +1,999 @@
-/*******************************************************************************
- * Copyright (c) 2010 Wind River Systems, Inc. and others.
- * All rights reserved. This program and the accompanying materials
- * are made available under the terms of the Eclipse Public License v1.0
- * which accompanies this distribution, and is available at
- * http://www.eclipse.org/legal/epl-v10.html
- *
- * Contributors:
- *     Wind River Systems - initial API and implementation
- *******************************************************************************/
-package org.eclipse.tm.internal.tcf.cdt.ui.disassembly;
-
-import static org.eclipse.cdt.debug.internal.ui.disassembly.dsf.DisassemblyUtils.DEBUG;
-
-import java.math.BigInteger;
-import java.util.ArrayList;
-import java.util.HashMap;
-import java.util.Map;
-
-import org.eclipse.cdt.debug.internal.ui.disassembly.dsf.AddressRangePosition;
-import org.eclipse.cdt.debug.internal.ui.disassembly.dsf.DisassemblyUtils;
-import org.eclipse.cdt.debug.internal.ui.disassembly.dsf.ErrorPosition;
-import org.eclipse.cdt.debug.internal.ui.disassembly.dsf.IDisassemblyBackend;
-import org.eclipse.cdt.debug.internal.ui.disassembly.dsf.IDisassemblyPartCallback;
-import org.eclipse.core.runtime.IAdaptable;
-import org.eclipse.core.runtime.IPath;
-import org.eclipse.core.runtime.IStatus;
-import org.eclipse.core.runtime.Path;
-import org.eclipse.core.runtime.Status;
-import org.eclipse.debug.core.DebugPlugin;
-import org.eclipse.debug.core.ILaunch;
-import org.eclipse.debug.core.ILaunchesListener;
-import org.eclipse.jface.dialogs.ErrorDialog;
-import org.eclipse.jface.text.BadLocationException;
-import org.eclipse.jface.text.IDocumentExtension4;
-import org.eclipse.jface.text.Position;
-import org.eclipse.tm.internal.tcf.cdt.ui.Activator;
-import org.eclipse.tm.internal.tcf.debug.launch.TCFSourceLookupDirector;
-import org.eclipse.tm.internal.tcf.debug.model.TCFContextState;
-import org.eclipse.tm.internal.tcf.debug.model.TCFSourceRef;
-import org.eclipse.tm.internal.tcf.debug.ui.model.TCFChildrenStackTrace;
-import org.eclipse.tm.internal.tcf.debug.ui.model.TCFModel;
-import org.eclipse.tm.internal.tcf.debug.ui.model.TCFNode;
-import org.eclipse.tm.internal.tcf.debug.ui.model.TCFNodeExecContext;
-import org.eclipse.tm.internal.tcf.debug.ui.model.TCFNodeStackFrame;
-import org.eclipse.tm.tcf.protocol.IChannel;
-import org.eclipse.tm.tcf.protocol.IChannel.IChannelListener;
-import org.eclipse.tm.tcf.protocol.IToken;
-import org.eclipse.tm.tcf.protocol.JSON;
-import org.eclipse.tm.tcf.protocol.Protocol;
-import org.eclipse.tm.tcf.services.IDisassembly;
-import org.eclipse.tm.tcf.services.IDisassembly.DoneDisassemble;
-import org.eclipse.tm.tcf.services.IDisassembly.IDisassemblyLine;
-import org.eclipse.tm.tcf.services.IExpressions;
-import org.eclipse.tm.tcf.services.IExpressions.DoneCreate;
-import org.eclipse.tm.tcf.services.IExpressions.DoneDispose;
-import org.eclipse.tm.tcf.services.IExpressions.DoneEvaluate;
-import org.eclipse.tm.tcf.services.IExpressions.Expression;
-import org.eclipse.tm.tcf.services.IExpressions.Value;
-import org.eclipse.tm.tcf.services.ILineNumbers;
-import org.eclipse.tm.tcf.services.ILineNumbers.CodeArea;
-import org.eclipse.tm.tcf.services.ILineNumbers.DoneMapToSource;
-import org.eclipse.tm.tcf.services.IMemory;
-import org.eclipse.tm.tcf.services.IRunControl;
-import org.eclipse.tm.tcf.services.IRunControl.RunControlContext;
-import org.eclipse.tm.tcf.services.IRunControl.RunControlListener;
-import org.eclipse.tm.tcf.services.ISymbols;
-import org.eclipse.tm.tcf.util.TCFDataCache;
-import org.eclipse.tm.tcf.util.TCFTask;
-
-@SuppressWarnings("restriction")
-public class TCFDisassemblyBackend implements IDisassemblyBackend {
-
-    private static class AddressRange {
-        BigInteger start;
-        BigInteger end;
-    }
-    private static class FunctionOffset {
-        static final FunctionOffset NONE = new FunctionOffset(null, null);
-        String name;
-        BigInteger offset;
-        FunctionOffset(String name, BigInteger offset) {
-            this.name = name;
-            this.offset = offset;
-        }
-        @Override
-        public String toString() {
-            if (name == null || name.length() == 0) {
-                return "";
-            }
-            if (isZeroOffset()) {
-                return name;
-            }
-            return name + '+' + offset.toString();
-        }
-        boolean isZeroOffset() {
-            return offset == null || offset.compareTo(BigInteger.ZERO) == 0;
-        }
-    }
-    private class TCFLaunchListener implements ILaunchesListener {
-
-        public void launchesRemoved(ILaunch[] launches) {
-        }
-
-        public void launchesAdded(ILaunch[] launches) {
-        }
-
-        public void launchesChanged(ILaunch[] launches) {
-            if(fExecContext == null) {
-                return;
-            }
-            for (ILaunch launch : launches) {
-                if (launch == fExecContext.getModel().getLaunch()) {
-                    if (launch.isTerminated()) {
-                        handleSessionEnded();
-                    }
-                    break;
-                }
-            }
-        }
-    }
-
-    private class TCFChannelListener implements IChannelListener {
-
-        public void onChannelOpened() {
-        }
-
-        public void onChannelClosed(Throwable error) {
-            handleSessionEnded();
-        }
-
-        public void congestionLevel(int level) {
-        }
-    }
-
-    private class TCFRunControlListener implements RunControlListener {
-
-        public void contextAdded(RunControlContext[] contexts) {
-        }
-
-        public void contextChanged(RunControlContext[] contexts) {
-        }
-
-        public void contextRemoved(String[] context_ids) {
-            String id = fExecContext.getID();
-            for (String contextId : context_ids) {
-                if (id.equals(contextId)) {
-                    fCallback.handleTargetEnded();
-                    return;
-                }
-            }
-        }
-
-        public void contextSuspended(String context, String pc, String reason,
-                Map<String, Object> params) {
-            if (fExecContext.getID().equals(context)) {
-                handleContextSuspended(pc != null ? new BigInteger(pc) : null);
-            }
-        }
-
-        public void contextResumed(String context) {
-            if (fExecContext.getID().equals(context)) {
-                fCallback.handleTargetResumed();
-            }
-        }
-
-        public void containerSuspended(String context, String pc,
-                String reason, Map<String, Object> params,
-                String[] suspended_ids) {
-            String id = fExecContext.getID();
-            if (id.equals(context)) {
-                handleContextSuspended(pc != null ? new BigInteger(pc) : null);
-                return;
-            }
-            for (String contextId : suspended_ids) {
-                if (id.equals(contextId)) {
-                    handleContextSuspended(null);
-                    return;
-                }
-            }
-        }
-
-        public void containerResumed(String[] context_ids) {
-            String id = fExecContext.getID();
-            for (String contextId : context_ids) {
-                if (id.equals(contextId)) {
-                    fCallback.handleTargetResumed();
-                    return;
-                }
-            }
-        }
-
-        public void contextException(String context, String msg) {
-        }
-
-    }
-
-    private IDisassemblyPartCallback fCallback;
-    private volatile TCFNodeExecContext fExecContext;
-    private volatile TCFNodeStackFrame fActiveFrame;
-    private volatile BigInteger fSuspendAddress;
-    private volatile int fSuspendCount;
-
-    private final IRunControl.RunControlListener fRunControlListener = new TCFRunControlListener();
-    private final IChannelListener fChannelListener = new TCFChannelListener();
-    private final ILaunchesListener fLaunchesListener = new TCFLaunchListener();
-
-    public void init(IDisassemblyPartCallback callback) {
-        fCallback = callback;
-    }
-
-    public boolean supportsDebugContext(IAdaptable context) {
-        return (context instanceof TCFNodeExecContext || context instanceof TCFNodeStackFrame)
-            && hasDisassemblyService((TCFNode) context);
-    }
-
-    private boolean hasDisassemblyService(final TCFNode context) {
-        Boolean hasService = new TCFTask<Boolean>() {
-            public void run() {
-                IDisassembly disass = null;
-                IChannel channel = context.getChannel();
-                if (channel != null && channel.getState() != IChannel.STATE_CLOSED) {
-                    disass = channel.getRemoteService(IDisassembly.class);
-                }
-                done(disass != null);
-            }
-        }.getE();
-        return hasService != null && hasService.booleanValue();
-    }
-
-    public boolean hasDebugContext() {
-        return fExecContext != null;
-    }
-
-    public SetDebugContextResult setDebugContext(IAdaptable context) {
-        TCFNodeExecContext newContext = null;
-        TCFNodeStackFrame frame = null;
-        SetDebugContextResult result = new SetDebugContextResult();
-        if (context instanceof TCFNodeExecContext) {
-            newContext = (TCFNodeExecContext) context;
-            final TCFNodeExecContext _execContext = newContext;
-            frame = new TCFTask<TCFNodeStackFrame>(_execContext.getChannel()) {
-                public void run() {
-                    TCFChildrenStackTrace stack = _execContext.getStackTrace();
-                    if (!stack.validate(this)) {
-                        return;
-                    }
-                    done(stack.getTopFrame());
-                }
-            }.getE();
-            if (frame == null) {
-                newContext = null;
-            }
-        } else if (context instanceof TCFNodeStackFrame) {
-            final TCFNodeStackFrame _frame = frame = (TCFNodeStackFrame) context;
-            newContext = new TCFTask<TCFNodeExecContext>(_frame.getChannel()) {
-                public void run() {
-                    TCFNode parent = _frame.getParent();
-                    if (parent instanceof TCFNodeExecContext) {
-                        done((TCFNodeExecContext) parent);
-                    } else {
-                        done(null);
-                    }
-                }
-            }.getE();
-        }
-        TCFNodeExecContext oldContext = fExecContext;
-        if (oldContext == null || newContext == null || oldContext.compareTo(newContext) != 0) {
-            result.contextChanged = true;
-            fSuspendCount++;
-            if (oldContext != null) {
-                removeListeners(oldContext);
-            }
-        }
-        fExecContext = newContext;
-        if (newContext != null && result.contextChanged) {
-            addListeners(newContext);
-        }
-        fActiveFrame = frame;
-        result.sessionId = newContext != null ? newContext.getID() : null;
-
-        if (!result.contextChanged && fActiveFrame != null) {
-            fCallback.asyncExec(new Runnable() {
-                public void run() {
-                    fCallback.gotoFrameIfActive(getFrameLevel());
-                }
-            });
-        }
-
-        return result;
-    }
-
-    private void addListeners(final TCFNodeExecContext context) {
-        assert context != null;
-        Protocol.invokeAndWait(new Runnable() {
-            public void run() {
-                IChannel channel = context.getChannel();
-                IRunControl rctl = channel.getRemoteService(IRunControl.class);
-                if (rctl != null) {
-                    rctl.addListener(fRunControlListener);
-                }
-                channel.addChannelListener(fChannelListener);
-            }
-        });
-        DebugPlugin.getDefault().getLaunchManager().addLaunchListener(fLaunchesListener );
-    }
-
-    private void removeListeners(final TCFNodeExecContext context) {
-        assert context != null;
-        DebugPlugin.getDefault().getLaunchManager().removeLaunchListener(fLaunchesListener);
-        Protocol.invokeAndWait(new Runnable() {
-            public void run() {
-                IChannel channel = context.getChannel();
-                IRunControl rctl = channel.getRemoteService(IRunControl.class);
-                if (rctl != null) {
-                    rctl.removeListener(fRunControlListener);
-                }
-                channel.removeChannelListener(fChannelListener);
-            }
-        });
-    }
-
-    private void handleContextSuspended(BigInteger pc) {
-        ++fSuspendCount;
-        fSuspendAddress = pc;
-        fCallback.handleTargetSuspended();
-    }
-    private void handleSessionEnded() {
-        clearDebugContext();
-        fCallback.handleTargetEnded();
-    }
-
-    public void clearDebugContext() {
-        if (fExecContext != null) {
-            removeListeners(fExecContext);
-        }
-        fExecContext = null;
-        fActiveFrame = null;
-    }
-
-    public void retrieveFrameAddress(final int targetFrame) {
-        final TCFNodeExecContext execContext = fExecContext;
-        if (execContext == null) {
-            fCallback.setUpdatePending(false);
-            return;
-        }
-        BigInteger address;
-        if (targetFrame == 0 && fSuspendAddress != null) {
-            // shortcut for goto frame on suspend
-            address = fSuspendAddress;
-            fSuspendAddress = null;
-        }
-        else {
-            final int suspendCount = fSuspendCount;
-            final TCFChildrenStackTrace stack = execContext.getStackTrace();
-            address = new TCFTask<BigInteger>(execContext.getChannel()) {
-                public void run() {
-                    if (suspendCount != fSuspendCount || execContext != fExecContext) {
-                        done(null);
-                        return;
-                    }
-                    if (!stack.validate(this)) return;
-                    TCFNodeStackFrame frame = null;
-                    if (targetFrame == 0) {
-                        frame = stack.getTopFrame();
-                    }
-                    else {
-                        Map<String,TCFNode> frameData = stack.getData();
-                        for (TCFNode node : frameData.values()) {
-                            if (node instanceof TCFNodeStackFrame) {
-                                TCFNodeStackFrame cand = (TCFNodeStackFrame) node;
-                                if (cand.getFrameNo() == targetFrame) {
-                                    frame = cand;
-                                    break;
-                                }
-                            }
-                        }
-                    }
-                    if (frame != null) {
-                        TCFDataCache<BigInteger> addressCache = frame.getAddress();
-                        if (!addressCache.validate(this)) return;
-                        done(addressCache.getData());
-                        return;
-                    }
-                    done(null);
-                }
-            }.getE();
-        }
-
-        if (execContext == fExecContext) {
-            fCallback.setUpdatePending(false);
-            if (address == null) address = BigInteger.valueOf(-2);
-            if (targetFrame == 0) {
-                fCallback.updatePC(address);
-            }
-            else {
-                fCallback.gotoFrame(targetFrame, address);
-            }
-        }
-    }
-
-    public int getFrameLevel() {
-        if (fActiveFrame == null) return -1;
-        Integer level = new TCFTask<Integer>() {
-            public void run() {
-                done(fActiveFrame != null ? fActiveFrame.getFrameNo() : -1);
-            }
-        }.getE();
-        return level != null ? level.intValue() : -1;
-    }
-
-    public boolean isSuspended() {
-        if (fExecContext == null) {
-            return false;
-        }
-        Boolean suspended = new TCFTask<Boolean>(fExecContext.getChannel()) {
-            public void run() {
-                if (fExecContext == null) {
-                    done(null);
-                    return;
-                }
-                TCFDataCache<TCFContextState> stateCache = fExecContext.getState();
-                if (!stateCache.validate(this)) {
-                    return;
-                }
-                TCFContextState state = stateCache.getData();
-                if (state != null) {
-                    done(state.is_suspended);
-                    return;
-                }
-                done(null);
-            }
-        }.getE();
-        return suspended != null ? suspended.booleanValue() : false;
-    }
-
-    public boolean hasFrameContext() {
-        return fActiveFrame != null;
-    }
-
-    public String getFrameFile() {
-        final TCFNodeStackFrame frame = fActiveFrame;
-        if (frame == null) return null;
-        String file = new TCFTask<String>(frame.getChannel()) {
-            public void run() {
-                if (frame != fActiveFrame) {
-                    done(null);
-                    return;
-                }
-                TCFDataCache<TCFSourceRef> sourceRefCache = frame.getLineInfo();
-                if (!sourceRefCache.validate(this)) return;
-                TCFSourceRef sourceRef = sourceRefCache.getData();
-                String file = sourceRef.area.file;
-                if (file != null) {
-                    IPath filePath = new Path(file);
-                    if (!filePath.isAbsolute()) {
-                        String dir = sourceRef.area.directory;
-                        if (dir != null) {
-                            filePath = new Path(dir).append(filePath);
-                        }
-                    }
-                    done(filePath.toString());
-                }
-                done(null);
-            }
-        }.getE();
-        return file;
-    }
-
-    public int getFrameLine() {
-        final TCFNodeStackFrame frame = fActiveFrame;
-        if (frame == null) return -1;
-        Integer line = new TCFTask<Integer>(frame.getChannel()) {
-            public void run() {
-                if (frame != fActiveFrame) {
-                    done(null);
-                    return;
-                }
-                TCFDataCache<TCFSourceRef> sourceRefCache = frame.getLineInfo();
-                if (!sourceRefCache.validate(this)) return;
-                TCFSourceRef sourceRef = sourceRefCache.getData();
-                done(sourceRef.area.start_line);
-            }
-        }.getE();
-        return line != null ? line.intValue() : -1;
-    }
-
-    public void retrieveDisassembly(final BigInteger startAddress,
-            BigInteger endAddress, String file, int lineNumber, int lines,
-            final boolean mixed, final boolean showSymbols, boolean showDisassembly,
-            final int linesHint) {
-        final TCFNodeExecContext execContext = fExecContext;
-        if (execContext == null || execContext.isDisposed()) {
-            fCallback.setUpdatePending(false);
-            return;
-        }
-        final int suspendCount = fSuspendCount;
-        final long modCount = getModCount();
-        Protocol.invokeLater(new Runnable() {
-            public void run() {
-                if (execContext != fExecContext) return;
-                if (suspendCount != fSuspendCount) {
-                    fCallback.setUpdatePending(false);
-                    return;
-                }
-                final IChannel channel = execContext.getChannel();
-                IDisassembly disass = channel.getRemoteService(IDisassembly.class);
-                if (disass == null) {
-                    fCallback.setUpdatePending(false);
-                    return;
-                }
-                TCFDataCache<TCFNodeExecContext> mem_node_cache = execContext.getModel().searchMemoryContext(execContext);
-                if (mem_node_cache == null) {
-                    fCallback.setUpdatePending(false);
-                    return;
-                }
-                if (!mem_node_cache.validate(this)) return;
-                TCFNodeExecContext mem_node = mem_node_cache.getData();
-                if (mem_node == null) {
-                    fCallback.setUpdatePending(false);
-                    return;
-                }
-                TCFDataCache<IMemory.MemoryContext> mem_ctx_cache = mem_node.getMemoryContext();
-                if (!mem_ctx_cache.validate(this)) return;
-                final IMemory.MemoryContext mem_ctx = mem_ctx_cache.getData();
-                if (mem_ctx == null) {
-                    fCallback.setUpdatePending(false);
-                    return;
-                }
-                final String contextId = mem_ctx.getID();
-                Map<String, Object> params = new HashMap<String, Object>();
-                disass.disassemble(contextId, startAddress, linesHint*4, params, new DoneDisassemble() {
-                    public void doneDisassemble(IToken token, final Throwable error,
-                            final IDisassemblyLine[] disassembly) {
-                        if (execContext != fExecContext) return;
-                        if (error != null) {
-                            fCallback.asyncExec(new Runnable() {
-                                public void run() {
-                                    if (execContext != fExecContext) return;
-                                    if (modCount == getModCount()) {
-                                        fCallback.insertError(startAddress, TCFModel.getErrorMessage(error, false));
-                                        fCallback.setUpdatePending(false);
-                                        int addr_bits = mem_ctx.getAddressSize() * 8;
-                                        if (fCallback.getAddressSize() < addr_bits) fCallback.addressSizeChanged(addr_bits);
-                                    }
-                                }
-                            });
-                            return;
-                        }
-                        doneGetDisassembly(disassembly);
-                    }
-
-                    private void doneGetDisassembly(final IDisassemblyLine[] disassembly) {
-                        if (!showSymbols) {
-                            doneGetSymbols(disassembly, null);
-                            return;
-                        }
-                        final ISymbols symbols = channel.getRemoteService(ISymbols.class);
-                        if (symbols == null) {
-                            doneGetSymbols(disassembly, null);
-                            return;
-                        }
-                        final ArrayList<ISymbols.Symbol> symbolList = new ArrayList<ISymbols.Symbol>();
-                        final int[] idx = { 0 };
-                        IDisassemblyLine line = disassembly[idx[0]];
-                        Number address = line.getAddress();
-                        symbols.findByAddr(contextId, address, new ISymbols.DoneFind() {
-                            ISymbols.DoneFind doneFind = this;
-                            public void doneFind(IToken token, Exception error, String symbol_id) {
-                                if (error == null && symbol_id != null) {
-                                    symbols.getContext(symbol_id, new ISymbols.DoneGetContext() {
-                                        public void doneGetContext(IToken token, Exception error, ISymbols.Symbol context) {
-                                            BigInteger nextAddress = null;
-                                            if (error == null && context != null) {
-                                                if (context.getTypeClass().equals(ISymbols.TypeClass.function)) {
-                                                    symbolList.add(context);
-                                                    nextAddress = JSON.toBigInteger(context.getAddress()).add(BigInteger.valueOf(context.getSize()));
-                                                }
-                                            }
-                                            findNextSymbol(nextAddress);
-                                        }
-                                    });
-                                    return;
-                                }
-                                findNextSymbol(null);
-                            }
-                            private void findNextSymbol(BigInteger nextAddress) {
-                                while (++idx[0] < disassembly.length) {
-                                    BigInteger instrAddress = JSON.toBigInteger(disassembly[idx[0]].getAddress());
-                                    if (nextAddress == null) {
-                                        nextAddress = instrAddress;
-                                    }
-                                    else if (instrAddress.compareTo(nextAddress) < 0) {
-                                        continue;
-                                    }
-                                    symbols.findByAddr(contextId, instrAddress, doneFind);
-                                    return;
-                                }
-                                ISymbols.Symbol[] functionSymbols =
-                                    (ISymbols.Symbol[]) symbolList.toArray(new ISymbols.Symbol[symbolList.size()]);
-                                doneGetSymbols(disassembly, functionSymbols);
-                            }
-                        });
-                    }
-
-                    private void doneGetSymbols(final IDisassemblyLine[] disassembly, final ISymbols.Symbol[] symbols) {
-                        ILineNumbers lineNumbers = null;
-                        if (mixed) {
-                            lineNumbers = channel.getRemoteService(ILineNumbers.class);
-                        }
-                        if (lineNumbers == null) {
-                            doneGetLineNumbers(disassembly, symbols, null);
-                        }
-                        else {
-                            AddressRange range = getAddressRange(disassembly);
-                            lineNumbers.mapToSource(contextId, range.start, range.end, new DoneMapToSource() {
-                                public void doneMapToSource(IToken token, Exception error, final CodeArea[] areas) {
-                                    if (error != null) {
-                                        Activator.log(error);
-                                        doneGetLineNumbers(disassembly, symbols, null);
-                                    }
-                                    else {
-                                        doneGetLineNumbers(disassembly, symbols, areas);
-                                    }
-                                }
-                            });
-                        }
-                    }
-
-                    private void doneGetLineNumbers( final IDisassemblyLine[] disassembly, final ISymbols.Symbol[] symbols, final CodeArea[] areas) {
-                        fCallback.asyncExec(new Runnable() {
-                            public void run() {
-                                insertDisassembly(modCount, startAddress, disassembly, symbols, areas);
-                                int addr_bits = mem_ctx.getAddressSize() * 8;
-                                if (fCallback.getAddressSize() < addr_bits) fCallback.addressSizeChanged(addr_bits);
-                            }
-                        });
-                    }
-
-                    private AddressRange getAddressRange(IDisassemblyLine[] lines) {
-                        AddressRange range = new AddressRange();
-                        range.start = JSON.toBigInteger(lines[0].getAddress());
-                        IDisassemblyLine lastLine = lines[lines.length-1];
-                        range.end = JSON.toBigInteger(lastLine.getAddress()).add(BigInteger.valueOf(lastLine.getSize()));
-                        return range;
-                    }
-                });
-            }
-        });
-    }
-
-    private long getModCount() {
-        return ((IDocumentExtension4) fCallback.getDocument()).getModificationStamp();
-    }
-
-    protected final void insertDisassembly(long modCount, BigInteger startAddress, IDisassemblyLine[] instructions, ISymbols.Symbol[] symbols, CodeArea[] codeAreas) {
-        if (!fCallback.hasViewer() || fExecContext == null) return;
-        if (modCount != getModCount()) return;
-        if (DEBUG) System.out.println("insertDisassembly " + DisassemblyUtils.getAddressText(startAddress)); //$NON-NLS-1$
-        boolean updatePending = fCallback.getUpdatePending();
-        assert updatePending;
-        if (!updatePending) {
-            // safe-guard in case something weird is going on
-            return;
-        }
-
-        boolean insertedAnyAddress = false;
-        try {
-            fCallback.lockScroller();
-
-            AddressRangePosition p= null;
-            for (IDisassemblyLine instruction : instructions) {
-                BigInteger address = JSON.toBigInteger(instruction.getAddress());
-                if (startAddress == null) {
-                    startAddress = address;
-                    fCallback.setGotoAddressPending(address);
-                }
-                if (p == null || !p.containsAddress(address)) {
-                    p = fCallback.getPositionOfAddress(address);
-                }
-                if (p instanceof ErrorPosition && p.fValid) {
-                    p.fValid = false;
-                    fCallback.getDocument().addInvalidAddressRange(p);
-                }
-                else if (p == null /* || address.compareTo(endAddress) > 0 */) {
-                    if (DEBUG) System.out.println("Excess disassembly lines at " + DisassemblyUtils.getAddressText(address)); //$NON-NLS-1$
-                    return;
-                }
-                else if (p.fValid) {
-                    if (DEBUG) System.out.println("Excess disassembly lines at " + DisassemblyUtils.getAddressText(address)); //$NON-NLS-1$
-//                    if (!p.fAddressOffset.equals(address)) {
-//                        // override probably unaligned disassembly
-//                        p.fValid = false;
-//                        fCallback.getDocument().addInvalidAddressRange(p);
-//                    } else {
-                        continue;
-//                    }
-                }
-
-                // insert source
-                String sourceFile = null;
-                int firstLine = -1;
-                int lastLine = -1;
-                CodeArea area = findCodeArea(address, codeAreas);
-                if (area != null) {
-                    if (area.file != null) {
-                        IPath filePath = new Path(area.file);
-                        if (!filePath.isAbsolute() && area.directory != null) {
-                            filePath = new Path(area.directory).append(filePath);
-                        }
-                        sourceFile = filePath.toString();
-                        firstLine = area.start_line - 1;
-                        lastLine = area.end_line - 2;
-                    }
-                }
-                if (sourceFile != null && firstLine >= 0) {
-                    try {
-                        p = fCallback.insertSource(p, address, sourceFile, firstLine, lastLine);
-                    }
-                    catch (NoSuchMethodError nsme) {
-                        // use fallback
-                        p = fCallback.insertSource(p, address, sourceFile, firstLine);
-                    }
-                }
-
-                // insert symbol label
-                FunctionOffset functionOffset = getFunctionOffset(address, symbols);
-                if (functionOffset.name != null && functionOffset.isZeroOffset()) {
-                    p = fCallback.getDocument().insertLabel(p, address, functionOffset.name, true);
-                }
-
-                // insert instruction
-                int instrLength= instruction.getSize();
-                Map<String, Object>[] instrAttrs = instruction.getInstruction();
-                String instr = formatInstruction(instrAttrs);
-
-                p = fCallback.getDocument().insertDisassemblyLine(p, address, instrLength, functionOffset.toString(), instr, sourceFile, firstLine);
-                if (p == null) break;
-                insertedAnyAddress = true;
-            }
-        }
-        catch (BadLocationException e) {
-            // should not happen
-            DisassemblyUtils.internalError(e);
-        }
-        finally {
-            fCallback.setUpdatePending(false);
-            if (insertedAnyAddress) {
-                fCallback.updateInvalidSource();
-                fCallback.unlockScroller();
-                fCallback.doPending();
-                fCallback.updateVisibleArea();
-            }
-            else {
-                fCallback.unlockScroller();
-            }
-        }
-    }
-
-    private FunctionOffset getFunctionOffset(BigInteger address, ISymbols.Symbol[] symbols) {
-        if (symbols != null) {
-            for (ISymbols.Symbol symbol : symbols) {
-                BigInteger symbolAddress = JSON.toBigInteger(symbol.getAddress());
-                BigInteger offset = address.subtract(symbolAddress);
-                switch (offset.compareTo(BigInteger.ZERO)) {
-                case 0:
-                    return new FunctionOffset(symbol.getName(), BigInteger.ZERO);
-                case 1:
-                    if (offset.compareTo(BigInteger.valueOf(symbol.getSize())) < 0) {
-                        return new FunctionOffset(symbol.getName(), offset);
-                    }
-                    break;
-                default:
-                    break;
-                }
-            }
-        }
-        return FunctionOffset.NONE;
-    }
-
-    private CodeArea findCodeArea(BigInteger address, CodeArea[] codeAreas) {
-        if (codeAreas != null) {
-            for (CodeArea codeArea : codeAreas) {
-                if (address.equals(JSON.toBigInteger(codeArea.start_address))) {
-                    return codeArea;
-                }
-            }
-        }
-        return null;
-    }
-
-    /**
-     * Format an instruction.
-     *
-     * @param instrAttrs
-     * @return string representation
-     */
-    private String formatInstruction(Map<String, Object>[] instrAttrs) {
-        StringBuilder buf = new StringBuilder(20);
-        for (Map<String, Object> attrs : instrAttrs) {
-            Object type = attrs.get(IDisassembly.FIELD_TYPE);
-            if (IDisassembly.FTYPE_STRING.equals(type) || IDisassembly.FTYPE_Register.equals(type)) {
-                Object text = attrs.get(IDisassembly.FIELD_TEXT);
-                buf.append(text);
-            }
-            else {
-                Object value = attrs.get(IDisassembly.FIELD_VALUE);
-                BigInteger bigValue = new BigInteger(value.toString());
-                // TODO number format
-                buf.append("0x").append(bigValue.toString(16)).append(' ');
-            }
-        }
-        return buf.toString();
-    }
-
-    public void gotoSymbol(final String symbol) {
-        final TCFNodeStackFrame activeFrame = fActiveFrame;
-        if (activeFrame == null) return;
-        Protocol.invokeLater(new Runnable() {
-            public void run() {
-                if (activeFrame != fActiveFrame) return;
-                IChannel channel = activeFrame.getChannel();
-                final IExpressions exprSvc = channel.getRemoteService(IExpressions.class);
-                if (exprSvc != null) {
-                    TCFNode evalContext = activeFrame.isEmulated() ? activeFrame.getParent() : activeFrame;
-                    exprSvc.create(evalContext.getID(), null, symbol, new DoneCreate() {
-                        public void doneCreate(IToken token, Exception error, final Expression context) {
-                            if (error == null) {
-                                exprSvc.evaluate(context.getID(), new DoneEvaluate() {
-                                    public void doneEvaluate(IToken token, Exception error, Value value) {
-                                        if (error == null) {
-                                            final BigInteger address = toBigInteger(value.getValue(), value.isBigEndian(), false);
-                                            fCallback.asyncExec(new Runnable() {
-                                                public void run() {
-                                                    fCallback.gotoAddress(address);
-                                                }
-                                            });
-                                        }
-                                        else {
-                                            handleError(error);
-                                        }
-                                        exprSvc.dispose(context.getID(), new DoneDispose() {
-                                            public void doneDispose(IToken token, Exception error) {
-                                                // no-op
-                                            }
-                                        });
-                                    }
-                                });
-                            }
-                            else {
-                                handleError(error);
-                            }
-                        }
-                    });
-                }
-            }
-            protected void handleError(final Exception error) {
-                fCallback.asyncExec(new Runnable() {
-                    public void run() {
-                        Status status = new Status(IStatus.ERROR, Activator.PLUGIN_ID, error.getLocalizedMessage(), error);
-                        ErrorDialog.openError(fCallback.getSite().getShell(), "Error", null, status); //$NON-NLS-1$
-                    }
-                });
-            }
-        });
-    }
-
-    public void retrieveDisassembly(String file, int lines,
-            BigInteger endAddress, boolean mixed, boolean showSymbols,
-            boolean showDisassembly) {
-        // TODO disassembly for source file
-        fCallback.setUpdatePending(false);
-    }
-
-    public String evaluateExpression(final String expression) {
-        final TCFNodeStackFrame activeFrame = fActiveFrame;
-        if (activeFrame == null) return null;
-        String value = new TCFTask<String>(activeFrame.getChannel()) {
-            public void run() {
-                if (activeFrame != fActiveFrame) {
-                    done(null);
-                    return;
-                }
-                IChannel channel = activeFrame.getChannel();
-                final IExpressions exprSvc = channel.getRemoteService(IExpressions.class);
-                if (exprSvc != null) {
-                    TCFNode evalContext = activeFrame.isEmulated() ? activeFrame.getParent() : activeFrame;
-                    exprSvc.create(evalContext.getID(), null, expression, new DoneCreate() {
-                        public void doneCreate(IToken token, Exception error, final Expression context) {
-                            if (error == null) {
-                                exprSvc.evaluate(context.getID(), new DoneEvaluate() {
-                                    public void doneEvaluate(IToken token, Exception error, Value value) {
-                                        if (error == null) {
-                                            final BigInteger address = toBigInteger(value.getValue(), value.isBigEndian(), false);
-                                            done("0x" + address.toString(16));
-                                        }
-                                        else {
-                                            done(null);
-                                        }
-                                        exprSvc.dispose(context.getID(), new DoneDispose() {
-                                            public void doneDispose(IToken token, Exception error) {
-                                                // no-op
-                                            }
-                                        });
-                                    }
-                                });
-                            }
-                            else {
-                                done(null);
-                            }
-                        }
-                    });
-                }
-                else {
-                    done(null);
-                }
-            }
-        }.getE();
-        return value;
-    }
-
-    public void dispose() {
-    }
-
-    public Object insertSource(Position pos, BigInteger address, String file, int lineNumber) {
-        TCFNodeExecContext execContext = fExecContext;
-        if (execContext == null) return null;
-        return TCFSourceLookupDirector.lookup(execContext.getModel().getLaunch().getSourceLocator(), file);
-    }
-
-    private static BigInteger toBigInteger(byte[] data, boolean big_endian, boolean sign_extension) {
-        byte[] temp = null;
-        if (sign_extension) {
-            temp = new byte[data.length];
-        }
-        else {
-            temp = new byte[data.length + 1];
-            temp[0] = 0; // Extra byte to avoid sign extension by BigInteger
-        }
-        if (big_endian) {
-            System.arraycopy(data, 0, temp, sign_extension ? 0 : 1, data.length);
-        }
-        else {
-            for (int i = 0; i < data.length; i++) {
-                temp[temp.length - i - 1] = data[i];
-            }
-        }
-        return new BigInteger(temp);
-    }
-}
+/*******************************************************************************

+ * Copyright (c) 2010, 2011 Wind River Systems, Inc. and others.

+ * All rights reserved. This program and the accompanying materials

+ * are made available under the terms of the Eclipse Public License v1.0

+ * which accompanies this distribution, and is available at

+ * http://www.eclipse.org/legal/epl-v10.html

+ *

+ * Contributors:

+ *     Wind River Systems - initial API and implementation

+ *******************************************************************************/

+package org.eclipse.tm.internal.tcf.cdt.ui.disassembly;

+

+import static org.eclipse.cdt.debug.internal.ui.disassembly.dsf.DisassemblyUtils.DEBUG;

+

+import java.math.BigInteger;

+import java.util.ArrayList;

+import java.util.HashMap;

+import java.util.Map;

+

+import org.eclipse.cdt.debug.internal.ui.disassembly.dsf.AbstractDisassemblyBackend;

+import org.eclipse.cdt.debug.internal.ui.disassembly.dsf.AddressRangePosition;

+import org.eclipse.cdt.debug.internal.ui.disassembly.dsf.DisassemblyUtils;

+import org.eclipse.cdt.debug.internal.ui.disassembly.dsf.ErrorPosition;

+import org.eclipse.cdt.debug.internal.ui.disassembly.dsf.IDisassemblyPartCallback;

+import org.eclipse.core.runtime.IAdaptable;

+import org.eclipse.core.runtime.IPath;

+import org.eclipse.core.runtime.IStatus;

+import org.eclipse.core.runtime.Path;

+import org.eclipse.core.runtime.Status;

+import org.eclipse.debug.core.DebugPlugin;

+import org.eclipse.debug.core.ILaunch;

+import org.eclipse.debug.core.ILaunchesListener;

+import org.eclipse.debug.core.model.ISourceLocator;

+import org.eclipse.debug.core.sourcelookup.ISourceLookupDirector;

+import org.eclipse.jface.dialogs.ErrorDialog;

+import org.eclipse.jface.dialogs.MessageDialog;

+import org.eclipse.jface.text.BadLocationException;

+import org.eclipse.jface.text.IDocumentExtension4;

+import org.eclipse.jface.text.Position;

+import org.eclipse.tm.internal.tcf.cdt.ui.Activator;

+import org.eclipse.tm.internal.tcf.debug.model.TCFContextState;

+import org.eclipse.tm.internal.tcf.debug.model.TCFSourceRef;

+import org.eclipse.tm.internal.tcf.debug.ui.model.TCFChildrenStackTrace;

+import org.eclipse.tm.internal.tcf.debug.ui.model.TCFModel;

+import org.eclipse.tm.internal.tcf.debug.ui.model.TCFNode;

+import org.eclipse.tm.internal.tcf.debug.ui.model.TCFNodeExecContext;

+import org.eclipse.tm.internal.tcf.debug.ui.model.TCFNodeStackFrame;

+import org.eclipse.tm.tcf.protocol.IChannel;

+import org.eclipse.tm.tcf.protocol.IChannel.IChannelListener;

+import org.eclipse.tm.tcf.protocol.IToken;

+import org.eclipse.tm.tcf.protocol.Protocol;

+import org.eclipse.tm.tcf.services.IDisassembly;

+import org.eclipse.tm.tcf.services.IDisassembly.DoneDisassemble;

+import org.eclipse.tm.tcf.services.IDisassembly.IDisassemblyLine;

+import org.eclipse.tm.tcf.services.IExpressions;

+import org.eclipse.tm.tcf.services.IExpressions.DoneCreate;

+import org.eclipse.tm.tcf.services.IExpressions.DoneDispose;

+import org.eclipse.tm.tcf.services.IExpressions.DoneEvaluate;

+import org.eclipse.tm.tcf.services.IExpressions.Expression;

+import org.eclipse.tm.tcf.services.IExpressions.Value;

+import org.eclipse.tm.tcf.services.ILineNumbers;

+import org.eclipse.tm.tcf.services.ILineNumbers.CodeArea;

+import org.eclipse.tm.tcf.services.ILineNumbers.DoneMapToSource;

+import org.eclipse.tm.tcf.services.IMemory;

+import org.eclipse.tm.tcf.services.IRunControl;

+import org.eclipse.tm.tcf.services.IRunControl.RunControlContext;

+import org.eclipse.tm.tcf.services.IRunControl.RunControlListener;

+import org.eclipse.tm.tcf.services.ISymbols;

+import org.eclipse.tm.tcf.util.TCFDataCache;

+import org.eclipse.tm.tcf.util.TCFTask;

+import org.eclipse.ui.PlatformUI;

+

+@SuppressWarnings("restriction")

+public class TCFDisassemblyBackend extends AbstractDisassemblyBackend {

+

+    private static class AddressRange {

+        BigInteger start;

+        BigInteger end;

+    }

+    private static class FunctionOffset {

+        static final FunctionOffset NONE = new FunctionOffset(null, null);

+        String name;

+        BigInteger offset;

+        FunctionOffset(String name, BigInteger offset) {

+            this.name = name;

+            this.offset = offset;

+        }

+        @Override

+        public String toString() {

+            if (name == null || name.length() == 0) {

+                return "";

+            }

+            if (isZeroOffset()) {

+                return name;

+            }

+            return name + '+' + offset.toString();

+        }

+        boolean isZeroOffset() {

+            return offset == null || offset.compareTo(BigInteger.ZERO) == 0;

+        }

+    }

+    private class TCFLaunchListener implements ILaunchesListener {

+

+        public void launchesRemoved(ILaunch[] launches) {

+        }

+

+        public void launchesAdded(ILaunch[] launches) {

+        }

+

+        public void launchesChanged(ILaunch[] launches) {

+            if(fExecContext == null) {

+                return;

+            }

+            for (ILaunch launch : launches) {

+                if (launch == fExecContext.getModel().getLaunch()) {

+                    if (launch.isTerminated()) {

+                        handleSessionEnded();

+                    }

+                    break;

+                }

+            }

+        }

+    }

+

+    private class TCFChannelListener implements IChannelListener {

+

+        public void onChannelOpened() {

+        }

+

+        public void onChannelClosed(Throwable error) {

+            handleSessionEnded();

+        }

+

+        public void congestionLevel(int level) {

+        }

+    }

+

+    private class TCFRunControlListener implements RunControlListener {

+

+        public void contextAdded(RunControlContext[] contexts) {

+        }

+

+        public void contextChanged(RunControlContext[] contexts) {

+        }

+

+        public void contextRemoved(String[] context_ids) {

+            String id = fExecContext.getID();

+            for (String contextId : context_ids) {

+                if (id.equals(contextId)) {

+                    fCallback.handleTargetEnded();

+                    return;

+                }

+            }

+        }

+

+        public void contextSuspended(String context, String pc, String reason,

+                Map<String, Object> params) {

+            if (fExecContext.getID().equals(context)) {

+                handleContextSuspended(pc != null ? new BigInteger(pc) : null);

+            }

+        }

+

+        public void contextResumed(String context) {

+            if (fExecContext.getID().equals(context)) {

+                fCallback.handleTargetResumed();

+            }

+        }

+

+        public void containerSuspended(String context, String pc,

+                String reason, Map<String, Object> params,

+                String[] suspended_ids) {

+            String id = fExecContext.getID();

+            if (id.equals(context)) {

+                handleContextSuspended(pc != null ? new BigInteger(pc) : null);

+                return;

+            }

+            for (String contextId : suspended_ids) {

+                if (id.equals(contextId)) {

+                    handleContextSuspended(null);

+                    return;

+                }

+            }

+        }

+

+        public void containerResumed(String[] context_ids) {

+            String id = fExecContext.getID();

+            for (String contextId : context_ids) {

+                if (id.equals(contextId)) {

+                    fCallback.handleTargetResumed();

+                    return;

+                }

+            }

+        }

+

+        public void contextException(String context, String msg) {

+        }

+

+    }

+

+    private IDisassemblyPartCallback fCallback;

+    private volatile TCFNodeExecContext fExecContext;

+    private volatile TCFNodeStackFrame fActiveFrame;

+    private volatile BigInteger fSuspendAddress;

+    private volatile int fSuspendCount;

+

+    private final IRunControl.RunControlListener fRunControlListener = new TCFRunControlListener();

+    private final IChannelListener fChannelListener = new TCFChannelListener();

+    private final ILaunchesListener fLaunchesListener = new TCFLaunchListener();

+

+    @Override

+    public void init(IDisassemblyPartCallback callback) {

+        fCallback = callback;

+    }

+

+    public boolean supportsDebugContext(IAdaptable context) {

+        return (context instanceof TCFNodeExecContext || context instanceof TCFNodeStackFrame)

+            && hasDisassemblyService((TCFNode) context);

+    }

+

+    private boolean hasDisassemblyService(final TCFNode context) {

+        Boolean hasService = new TCFTask<Boolean>() {

+            public void run() {

+                IDisassembly disass = null;

+                IChannel channel = context.getChannel();

+                if (channel != null && channel.getState() != IChannel.STATE_CLOSED) {

+                    disass = channel.getRemoteService(IDisassembly.class);

+                }

+                done(disass != null);

+            }

+        }.getE();

+        return hasService != null && hasService.booleanValue();

+    }

+

+    public boolean hasDebugContext() {

+        return fExecContext != null;

+    }

+

+    public SetDebugContextResult setDebugContext(IAdaptable context) {

+        TCFNodeExecContext newContext = null;

+        TCFNodeStackFrame frame = null;

+        SetDebugContextResult result = new SetDebugContextResult();

+        if (context instanceof TCFNodeExecContext) {

+            newContext = (TCFNodeExecContext) context;

+            final TCFNodeExecContext _execContext = newContext;

+            frame = new TCFTask<TCFNodeStackFrame>(_execContext.getChannel()) {

+                public void run() {

+                    TCFChildrenStackTrace stack = _execContext.getStackTrace();

+                    if (!stack.validate(this)) {

+                        return;

+                    }

+                    done(stack.getTopFrame());

+                }

+            }.getE();

+            if (frame == null) {

+                newContext = null;

+            }

+        } else if (context instanceof TCFNodeStackFrame) {

+            final TCFNodeStackFrame _frame = frame = (TCFNodeStackFrame) context;

+            newContext = new TCFTask<TCFNodeExecContext>(_frame.getChannel()) {

+                public void run() {

+                    TCFNode parent = _frame.getParent();

+                    if (parent instanceof TCFNodeExecContext) {

+                        done((TCFNodeExecContext) parent);

+                    } else {

+                        done(null);

+                    }

+                }

+            }.getE();

+        }

+        TCFNodeExecContext oldContext = fExecContext;

+        if (oldContext == null || newContext == null || oldContext.compareTo(newContext) != 0) {

+            result.contextChanged = true;

+            fSuspendCount++;

+            if (oldContext != null) {

+                removeListeners(oldContext);

+            }

+        }

+        fExecContext = newContext;

+        if (newContext != null && result.contextChanged) {

+            addListeners(newContext);

+        }

+        fActiveFrame = frame;

+        result.sessionId = newContext != null ? newContext.getID() : null;

+

+        if (!result.contextChanged && fActiveFrame != null) {

+            fCallback.asyncExec(new Runnable() {

+                public void run() {

+                    fCallback.gotoFrameIfActive(getFrameLevel());

+                }

+            });

+        }

+

+        return result;

+    }

+

+    private void addListeners(final TCFNodeExecContext context) {

+        assert context != null;

+        Protocol.invokeAndWait(new Runnable() {

+            public void run() {

+                IChannel channel = context.getChannel();

+                IRunControl rctl = channel.getRemoteService(IRunControl.class);

+                if (rctl != null) {

+                    rctl.addListener(fRunControlListener);

+                }

+                channel.addChannelListener(fChannelListener);

+            }

+        });

+        DebugPlugin.getDefault().getLaunchManager().addLaunchListener(fLaunchesListener );

+    }

+

+    private void removeListeners(final TCFNodeExecContext context) {

+        assert context != null;

+        DebugPlugin.getDefault().getLaunchManager().removeLaunchListener(fLaunchesListener);

+        Protocol.invokeAndWait(new Runnable() {

+            public void run() {

+                IChannel channel = context.getChannel();

+                IRunControl rctl = channel.getRemoteService(IRunControl.class);

+                if (rctl != null) {

+                    rctl.removeListener(fRunControlListener);

+                }

+                channel.removeChannelListener(fChannelListener);

+            }

+        });

+    }

+

+    private void handleContextSuspended(BigInteger pc) {

+        ++fSuspendCount;

+        fSuspendAddress = pc;

+        fCallback.handleTargetSuspended();

+    }

+    private void handleSessionEnded() {

+        clearDebugContext();

+        fCallback.handleTargetEnded();

+    }

+

+    public void clearDebugContext() {

+        if (fExecContext != null) {

+            removeListeners(fExecContext);

+        }

+        fExecContext = null;

+        fActiveFrame = null;

+    }

+

+    public void retrieveFrameAddress(final int targetFrame) {

+        final TCFNodeExecContext execContext = fExecContext;

+        if (execContext == null) {

+            fCallback.setUpdatePending(false);

+            return;

+        }

+        BigInteger address;

+        if (targetFrame == 0 && fSuspendAddress != null) {

+            // shortcut for goto frame on suspend

+            address = fSuspendAddress;

+            fSuspendAddress = null;

+        } else {

+            final int suspendCount = fSuspendCount;

+            final TCFChildrenStackTrace stack = execContext.getStackTrace();

+            address = new TCFTask<BigInteger>(execContext.getChannel()) {

+                public void run() {

+                    if (suspendCount != fSuspendCount || execContext != fExecContext) {

+                        done(null);

+                        return;

+                    }

+                    if (!stack.validate(this)) {

+                        return;

+                    }

+                    TCFNodeStackFrame frame = null;

+                    if (targetFrame == 0) {

+                        frame = stack.getTopFrame();

+                    } else {

+                        Map<String,TCFNode> frameData = stack.getData();

+                        for (TCFNode node : frameData.values()) {

+                            if (node instanceof TCFNodeStackFrame) {

+                                TCFNodeStackFrame cand = (TCFNodeStackFrame) node;

+                                if (cand.getFrameNo() == targetFrame) {

+                                    frame = cand;

+                                    break;

+                                }

+                            }

+                        }

+                    }

+                    if (frame != null) {

+                        TCFDataCache<BigInteger> addressCache = frame.getAddress();

+                        if (!addressCache.validate(this)) {

+                            return;

+                        }

+                        done(addressCache.getData());

+                        return;

+                    }

+                    done(null);

+                }

+            }.getE();

+        }

+

+        if (execContext == fExecContext) {

+            fCallback.setUpdatePending(false);

+            if (address != null) {

+                if (targetFrame == 0) {

+                    fCallback.updatePC(address);

+                } else {

+                    fCallback.gotoFrame(targetFrame, address);

+                }

+            }

+        }

+    }

+

+    public int getFrameLevel() {

+        if (fActiveFrame == null) {

+            return -1;

+        }

+        Integer level = new TCFTask<Integer>() {

+            public void run() {

+                done(fActiveFrame != null ? fActiveFrame.getFrameNo() : -1);

+            }

+        }.getE();

+        return level != null ? level.intValue() : -1;

+    }

+

+    public boolean isSuspended() {

+        if (fExecContext == null) {

+            return false;

+        }

+        Boolean suspended = new TCFTask<Boolean>(fExecContext.getChannel()) {

+            public void run() {

+                if (fExecContext == null) {

+                    done(null);

+                    return;

+                }

+                TCFDataCache<TCFContextState> stateCache = fExecContext.getState();

+                if (!stateCache.validate(this)) {

+                    return;

+                }

+                TCFContextState state = stateCache.getData();

+                if (state != null) {

+                    done(state.is_suspended);

+                    return;

+                }

+                done(null);

+            }

+        }.getE();

+        return suspended != null ? suspended.booleanValue() : false;

+    }

+

+    public boolean hasFrameContext() {

+        return fActiveFrame != null;

+    }

+

+    public String getFrameFile() {

+        final TCFNodeStackFrame frame = fActiveFrame;

+        if (frame == null) {

+            return null;

+        }

+        String file = new TCFTask<String>(frame.getChannel()) {

+            public void run() {

+                if (frame != fActiveFrame) {

+                    done(null);

+                    return;

+                }

+                TCFDataCache<TCFSourceRef> sourceRefCache = frame.getLineInfo();

+                if (!sourceRefCache.validate(this)) {

+                    return;

+                }

+                TCFSourceRef sourceRef = sourceRefCache.getData();

+                String file = sourceRef.area.file;

+                if (file != null) {

+                    IPath filePath = new Path(file);

+                    if (!filePath.isAbsolute()) {

+                        String dir = sourceRef.area.directory;

+                        if (dir != null) {

+                            filePath = new Path(dir).append(filePath);

+                        }

+                    }

+                    done(filePath.toString());

+                }

+                done(null);

+            }

+        }.getE();

+        return file;

+    }

+

+    public int getFrameLine() {

+        final TCFNodeStackFrame frame = fActiveFrame;

+        if (frame == null) {

+            return -1;

+        }

+        Integer line = new TCFTask<Integer>(frame.getChannel()) {

+            public void run() {

+                if (frame != fActiveFrame) {

+                    done(null);

+                    return;

+                }

+                TCFDataCache<TCFSourceRef> sourceRefCache = frame.getLineInfo();

+                if (!sourceRefCache.validate(this)) {

+                    return;

+                }

+                TCFSourceRef sourceRef = sourceRefCache.getData();

+                done(sourceRef.area.start_line);

+            }

+        }.getE();

+        return line != null ? line.intValue() : -1;

+    }

+

+    public void retrieveDisassembly(final BigInteger startAddress,

+            BigInteger endAddress, String file, int lineNumber, int lines,

+            final boolean mixed, final boolean showSymbols, boolean showDisassembly,

+            final int linesHint) {

+        final TCFNodeExecContext execContext = fExecContext;

+        if (execContext == null || execContext.isDisposed()) {

+            fCallback.setUpdatePending(false);

+            return;

+        }

+        final int suspendCount = fSuspendCount;

+        final long modCount = getModCount();

+        Protocol.invokeLater(new Runnable() {

+            public void run() {

+                if (execContext != fExecContext) {

+                    return;

+                }

+                if (suspendCount != fSuspendCount) {

+                    fCallback.setUpdatePending(false);

+                    return;

+                }

+                final IChannel channel = execContext.getChannel();

+                IDisassembly disass = channel.getRemoteService(IDisassembly.class);

+                if (disass == null) {

+                    fCallback.setUpdatePending(false);

+                    return;

+                }

+                TCFDataCache<TCFNodeExecContext> mem_node_cache = execContext.getModel().searchMemoryContext(execContext);

+                if (!mem_node_cache.validate(this)) return;

+                TCFNodeExecContext memContext = mem_node_cache.getData();

+                if (memContext == null) {

+                    fCallback.setUpdatePending(false);

+                    return;

+                }

+                TCFDataCache<IMemory.MemoryContext> cache = memContext.getMemoryContext();

+                if (!cache.validate(this)) return;

+                final IMemory.MemoryContext mem = cache.getData();

+                if (mem == null) {

+                    fCallback.setUpdatePending(false);

+                    return;

+                }

+                final String contextId = mem.getID();

+                Map<String, Object> params = new HashMap<String, Object>();

+                disass.disassemble(contextId, startAddress, linesHint*4, params, new DoneDisassemble() {

+                    public void doneDisassemble(IToken token, final Throwable error,

+                            final IDisassemblyLine[] disassembly) {

+                        if (execContext != fExecContext) {

+                            return;

+                        }

+                        if (error != null) {

+                            fCallback.asyncExec(new Runnable() {

+                                public void run() {

+                                    if (execContext != fExecContext) {

+                                        return;

+                                    }

+                                    if (modCount == getModCount()) {

+                                        fCallback.insertError(startAddress, TCFModel.getErrorMessage(error, false));

+                                        fCallback.setUpdatePending(false);

+                                    }

+                                }

+                            });

+                            return;

+                        }

+                        doneGetDisassembly(disassembly);

+                    }

+

+                    private void doneGetDisassembly(final IDisassemblyLine[] disassembly) {

+                        if (!showSymbols) {

+                            doneGetSymbols(disassembly, null);

+                            return;

+                        }

+                        final ISymbols symbols = channel.getRemoteService(ISymbols.class);

+                        if (symbols == null) {

+                            doneGetSymbols(disassembly, null);

+                            return;

+                        }

+                        final ArrayList<ISymbols.Symbol> symbolList = new ArrayList<ISymbols.Symbol>();

+                        final int[] idx = { 0 };

+                        IDisassemblyLine line = disassembly[idx[0]];

+                        Number address = line.getAddress();

+                        symbols.findByAddr(contextId, address, new ISymbols.DoneFind() {

+                            ISymbols.DoneFind doneFind = this;

+                            public void doneFind(IToken token, Exception error, String symbol_id) {

+                                if (error == null && symbol_id != null) {

+                                    symbols.getContext(symbol_id, new ISymbols.DoneGetContext() {

+                                        public void doneGetContext(IToken token, Exception error, ISymbols.Symbol context) {

+                                            BigInteger nextAddress = null;

+                                            if (error == null && context != null) {

+                                                if (context.getTypeClass().equals(ISymbols.TypeClass.function)) {

+                                                    symbolList.add(context);

+                                                    nextAddress = toBigInteger(context.getAddress()).add(BigInteger.valueOf(context.getSize()));

+                                                }

+                                            }

+                                            findNextSymbol(nextAddress);

+                                        }

+                                    });

+                                    return;

+                                }

+                                findNextSymbol(null);

+                            }

+                            private void findNextSymbol(BigInteger nextAddress) {

+                                while (++idx[0] < disassembly.length) {

+                                    BigInteger instrAddress = toBigInteger(disassembly[idx[0]].getAddress());

+                                    if (nextAddress == null) {

+                                        nextAddress = instrAddress;

+                                    } else if (instrAddress.compareTo(nextAddress) < 0) {

+                                        continue;

+                                    }

+                                    symbols.findByAddr(contextId, instrAddress, doneFind);

+                                    return;

+                                }

+                                ISymbols.Symbol[] functionSymbols =

+                                    symbolList.toArray(new ISymbols.Symbol[symbolList.size()]);

+                                doneGetSymbols(disassembly, functionSymbols);

+                            }

+                        });

+                    }

+

+                    private void doneGetSymbols(final IDisassemblyLine[] disassembly, final ISymbols.Symbol[] symbols) {

+                        ILineNumbers lineNumbers = null;

+                        if (mixed) {

+                            lineNumbers = channel.getRemoteService(ILineNumbers.class);

+                        }

+                        if (lineNumbers == null) {

+                            doneGetLineNumbers(disassembly, symbols, null);

+                        } else {

+                            AddressRange range = getAddressRange(disassembly);

+                            lineNumbers.mapToSource(contextId, range.start, range.end, new DoneMapToSource() {

+                                public void doneMapToSource(IToken token, Exception error, final CodeArea[] areas) {

+                                    if (error != null) {

+                                        Activator.log(error);

+                                        doneGetLineNumbers(disassembly, symbols, null);

+                                    } else {

+                                        doneGetLineNumbers(disassembly, symbols, areas);

+                                    }

+                                }

+                            });

+                        }

+                    }

+

+                    private void doneGetLineNumbers( final IDisassemblyLine[] disassembly, final ISymbols.Symbol[] symbols, final CodeArea[] areas) {

+                        fCallback.asyncExec(new Runnable() {

+                            public void run() {

+                                insertDisassembly(modCount, startAddress, disassembly, symbols, areas);

+                            }

+                        });

+                    }

+

+                    private AddressRange getAddressRange(IDisassemblyLine[] lines) {

+                        AddressRange range = new AddressRange();

+                        range.start = toBigInteger(lines[0].getAddress());

+                        IDisassemblyLine lastLine = lines[lines.length-1];

+                        range.end = toBigInteger(lastLine.getAddress()).add(BigInteger.valueOf(lastLine.getSize()));

+                        return range;

+                    }

+                });

+            }

+        });

+    }

+

+    private long getModCount() {

+        return ((IDocumentExtension4) fCallback.getDocument()).getModificationStamp();

+    }

+

+    protected final void insertDisassembly(long modCount, BigInteger startAddress, IDisassemblyLine[] instructions, ISymbols.Symbol[] symbols, CodeArea[] codeAreas) {

+        if (!fCallback.hasViewer() || fExecContext == null) {

+            return;

+        }

+        if (modCount != getModCount()) {

+            return;

+        }

+        if (DEBUG) System.out.println("insertDisassembly "+ DisassemblyUtils.getAddressText(startAddress)); //$NON-NLS-1$

+        boolean updatePending = fCallback.getUpdatePending();

+        assert updatePending;

+        if (!updatePending) {

+            // safe-guard in case something weird is going on

+            return;

+        }

+

+        boolean insertedAnyAddress = false;

+        try {

+            fCallback.lockScroller();

+

+            AddressRangePosition p= null;

+            for (IDisassemblyLine instruction : instructions) {

+                BigInteger address;

+                if (instruction.getAddress() instanceof BigInteger) {

+                    address = (BigInteger) instruction.getAddress();

+                } else {

+                    address = BigInteger.valueOf(instruction.getAddress().longValue());

+                }

+                if (startAddress == null) {

+                    startAddress = address;

+                    fCallback.setGotoAddressPending(address);

+                }

+                if (p == null || !p.containsAddress(address)) {

+                    p = fCallback.getPositionOfAddress(address);

+                }

+                if (p instanceof ErrorPosition && p.fValid) {

+                    p.fValid = false;

+                    fCallback.getDocument().addInvalidAddressRange(p);

+                } else if (p == null /* || address.compareTo(endAddress) > 0 */) {

+                    if (DEBUG) System.out.println("Excess disassembly lines at " + DisassemblyUtils.getAddressText(address)); //$NON-NLS-1$

+                    return;

+                } else if (p.fValid) {

+                    if (DEBUG) System.out.println("Excess disassembly lines at " + DisassemblyUtils.getAddressText(address)); //$NON-NLS-1$

+//                    if (!p.fAddressOffset.equals(address)) {

+//                        // override probably unaligned disassembly

+//                        p.fValid = false;

+//                        fCallback.getDocument().addInvalidAddressRange(p);

+//                    } else {

+                        continue;

+//                    }

+                }

+

+                // insert source

+                String sourceFile = null;

+                int firstLine = -1;

+                int lastLine = -1;

+                CodeArea area = findCodeArea(address, codeAreas);

+                if (area != null) {

+                    if (area.file != null) {

+                        IPath filePath = new Path(area.file);

+                        if (!filePath.isAbsolute() && area.directory != null) {

+                            filePath = new Path(area.directory).append(filePath);

+                        }

+                        sourceFile = filePath.toString();

+                        firstLine = area.start_line - 1;

+                        lastLine = area.end_line - 2;

+                    }

+                }

+                if (sourceFile != null && firstLine >= 0) {

+                    try {

+                        p = fCallback.insertSource(p, address, sourceFile, firstLine, lastLine);

+                    } catch (NoSuchMethodError nsme) {

+                        // use fallback

+                        p = fCallback.insertSource(p, address, sourceFile, firstLine);

+                    }

+                }

+

+                // insert symbol label

+                FunctionOffset functionOffset = getFunctionOffset(address, symbols);

+                if (functionOffset.name != null && functionOffset.isZeroOffset()) {

+                    p = fCallback.getDocument().insertLabel(p, address, functionOffset.name, true);

+                }

+

+                // insert instruction

+                int instrLength= instruction.getSize();

+                Map<String, Object>[] instrAttrs = instruction.getInstruction();

+                String instr = formatInstruction(instrAttrs);

+

+                p = fCallback.getDocument().insertDisassemblyLine(p, address, instrLength, functionOffset.toString(), instr, sourceFile, firstLine);

+                if (p == null) {

+                    break;

+                }

+                insertedAnyAddress = true;

+            }

+        } catch (BadLocationException e) {

+            // should not happen

+            DisassemblyUtils.internalError(e);

+        } finally {

+            fCallback.setUpdatePending(false);

+            if (insertedAnyAddress) {

+                fCallback.updateInvalidSource();

+                fCallback.unlockScroller();

+                fCallback.doPending();

+                fCallback.updateVisibleArea();

+            } else {

+                fCallback.unlockScroller();

+            }

+        }

+        return;

+    }

+

+    private FunctionOffset getFunctionOffset(BigInteger address, ISymbols.Symbol[] symbols) {

+        if (symbols != null) {

+            for (ISymbols.Symbol symbol : symbols) {

+                BigInteger symbolAddress = toBigInteger(symbol.getAddress());

+                BigInteger offset = address.subtract(symbolAddress);

+                switch (offset.compareTo(BigInteger.ZERO)) {

+                case 0:

+                    return new FunctionOffset(symbol.getName(), BigInteger.ZERO);

+                case 1:

+                    if (offset.compareTo(BigInteger.valueOf(symbol.getSize())) < 0) {

+                        return new FunctionOffset(symbol.getName(), offset);

+                    }

+                    break;

+                default:

+                    break;

+                }

+            }

+        }

+        return FunctionOffset.NONE;

+    }

+

+    private CodeArea findCodeArea(BigInteger address, CodeArea[] codeAreas) {

+        if (codeAreas != null) {

+            for (CodeArea codeArea : codeAreas) {

+                if (address.equals(toBigInteger(codeArea.start_address))) {

+                    return codeArea;

+                }

+            }

+        }

+        return null;

+    }

+

+    /**

+     * Format an instruction.

+     *

+     * @param instrAttrs

+     * @return string representation

+     */

+    private String formatInstruction(Map<String, Object>[] instrAttrs) {

+        StringBuilder buf = new StringBuilder(20);

+        for (Map<String, Object> attrs : instrAttrs) {

+            Object type = attrs.get(IDisassembly.FIELD_TYPE);

+            if (IDisassembly.FTYPE_STRING.equals(type) || IDisassembly.FTYPE_Register.equals(type)) {

+                Object text = attrs.get(IDisassembly.FIELD_TEXT);

+                buf.append(text);

+            } else {

+                Object value = attrs.get(IDisassembly.FIELD_VALUE);

+                BigInteger bigValue = new BigInteger(value.toString());

+                // TODO number format

+                buf.append("0x").append(bigValue.toString(16)).append(' ');

+            }

+        }

+        return buf.toString();

+    }

+

+    public void gotoSymbol(final String symbol) {

+        final TCFNodeStackFrame activeFrame = fActiveFrame;

+        if (activeFrame == null) {

+            return;

+        }

+        Protocol.invokeLater(new Runnable() {

+            public void run() {

+                if (activeFrame != fActiveFrame) {

+                    return;

+                }

+                IChannel channel = activeFrame.getChannel();

+                final IExpressions exprSvc = channel.getRemoteService(IExpressions.class);

+                if (exprSvc != null) {

+                    TCFNode evalContext = activeFrame.isEmulated() ? activeFrame.getParent() : activeFrame;

+                    exprSvc.create(evalContext.getID(), null, symbol, new DoneCreate() {

+                        public void doneCreate(IToken token, Exception error, final Expression context) {

+                            if (error == null) {

+                                exprSvc.evaluate(context.getID(), new DoneEvaluate() {

+                                    public void doneEvaluate(IToken token, Exception error, Value value) {

+                                        if (error == null) {

+                                            final BigInteger address = toBigInteger(value.getValue(), value.isBigEndian(), false);

+                                            fCallback.asyncExec(new Runnable() {

+                                                public void run() {

+                                                    fCallback.gotoAddress(address);

+                                                }

+                                            });

+                                        } else {

+                                            handleError(error);

+                                        }

+                                        exprSvc.dispose(context.getID(), new DoneDispose() {

+                                            public void doneDispose(IToken token, Exception error) {

+                                                // no-op

+                                            }

+                                        });

+                                    }

+                                });

+                            } else {

+                                handleError(error);

+                            }

+                        }

+                    });

+                }

+            }

+            protected void handleError(final Exception error) {

+                fCallback.asyncExec(new Runnable() {

+                    public void run() {

+                        Status status = new Status(IStatus.ERROR, Activator.PLUGIN_ID, error.getLocalizedMessage(), error);

+                        ErrorDialog.openError(fCallback.getSite().getShell(), "Error", null, status); //$NON-NLS-1$

+                    }

+                });

+            }

+        });

+    }

+

+    public void retrieveDisassembly(String file, int lines,

+            BigInteger endAddress, boolean mixed, boolean showSymbols,

+            boolean showDisassembly) {

+        // TODO disassembly for source file

+        fCallback.setUpdatePending(false);

+    }

+

+    public String evaluateExpression(final String expression) {

+        final TCFNodeStackFrame activeFrame = fActiveFrame;

+        if (activeFrame == null) {

+            return null;

+        }

+        String value = new TCFTask<String>(activeFrame.getChannel()) {

+            public void run() {

+                if (activeFrame != fActiveFrame) {

+                    done(null);

+                    return;

+                }

+                IChannel channel = activeFrame.getChannel();

+                final IExpressions exprSvc = channel.getRemoteService(IExpressions.class);

+                if (exprSvc != null) {

+                    TCFNode evalContext = activeFrame.isEmulated() ? activeFrame.getParent() : activeFrame;

+                    exprSvc.create(evalContext.getID(), null, expression, new DoneCreate() {

+                        public void doneCreate(IToken token, Exception error, final Expression context) {

+                            if (error == null) {

+                                exprSvc.evaluate(context.getID(), new DoneEvaluate() {

+                                    public void doneEvaluate(IToken token, Exception error, Value value) {

+                                        if (error == null) {

+                                            final BigInteger address = toBigInteger(value.getValue(), value.isBigEndian(), false);

+                                            done("0x"+address.toString(16));

+                                        }

+                                        else {

+                                            done(null);

+                                        }

+                                        exprSvc.dispose(context.getID(), new DoneDispose() {

+                                            public void doneDispose(IToken token, Exception error) {

+                                                // no-op

+                                            }

+                                        });

+                                    }

+                                });

+                            }

+                            else {

+                                done(null);

+                            }

+                        }

+                    });

+                } else {

+                    done(null);

+                }

+            }

+        }.getE();

+        return value;

+    }

+

+    public void dispose() {

+    }

+

+    public Object insertSource(Position pos, BigInteger address, String file, int lineNumber) {

+        TCFNodeExecContext execContext = fExecContext;

+        if (execContext != null) {

+            ISourceLocator locator = fExecContext.getModel().getLaunch().getSourceLocator();

+            if (locator instanceof ISourceLookupDirector) {

+                return ((ISourceLookupDirector)locator).getSourceElement(file);

+            }

+        }

+        return null;

+    }

+

+    private static BigInteger toBigInteger(byte[] data, boolean big_endian, boolean sign_extension) {

+        byte[] temp = null;

+        if (sign_extension) {

+            temp = new byte[data.length];

+        }

+        else {

+            temp = new byte[data.length + 1];

+            temp[0] = 0; // Extra byte to avoid sign extension by BigInteger

+        }

+        if (big_endian) {

+            System.arraycopy(data, 0, temp, sign_extension ? 0 : 1, data.length);

+        }

+        else {

+            for (int i = 0; i < data.length; i++) {

+                temp[temp.length - i - 1] = data[i];

+            }

+        }

+        return new BigInteger(temp);

+    }

+

+    private static BigInteger toBigInteger(Number address) {

+        if (address instanceof BigInteger) {

+            return (BigInteger) address;

+        }

+        return new BigInteger(address.toString());

+    }

+

+    /*

+     * @see org.eclipse.cdt.debug.internal.ui.disassembly.dsf.AbstractDisassemblyBackend#evaluateAddressExpression(java.lang.String, boolean)

+     */

+    @Override

+    public BigInteger evaluateAddressExpression(String expression, boolean suppressError) {

+        String value = evaluateExpression(expression);

+        if (value != null) {

+            try {

+                return DisassemblyUtils.decodeAddress(value);

+            } catch (NumberFormatException e) {

+                if (!suppressError) {

+                    MessageDialog.openError(PlatformUI.getWorkbench().getDisplay().getActiveShell(), "Error", "Expression does not evaluate to an address");

+                }

+            }

+        }

+        return null;

+    }

+

+}