| 1 | /******************************************************************************* |
| 2 | * Copyright (c) 2016 Ericsson |
| 3 | * |
| 4 | * All rights reserved. This program and the accompanying materials are |
| 5 | * made available under the terms of the Eclipse Public License v1.0 which |
| 6 | * accompanies this distribution, and is available at |
| 7 | * http://www.eclipse.org/legal/epl-v10.html |
| 8 | *******************************************************************************/ |
| 9 | |
| 10 | package org.eclipse.tracecompass.internal.analysis.timing.core.callgraph; |
| 11 | |
| 12 | import java.util.Collection; |
| 13 | import java.util.Comparator; |
| 14 | |
| 15 | import org.eclipse.jdt.annotation.NonNull; |
| 16 | import org.eclipse.jdt.annotation.Nullable; |
| 17 | import org.eclipse.tracecompass.common.core.NonNullUtils; |
| 18 | import org.eclipse.tracecompass.segmentstore.core.ISegment; |
| 19 | import org.eclipse.tracecompass.tmf.core.segment.ISegmentAspect; |
| 20 | import org.eclipse.tracecompass.tmf.core.symbols.ISymbolProvider; |
| 21 | import org.eclipse.tracecompass.tmf.core.symbols.SymbolProviderManager; |
| 22 | import org.eclipse.tracecompass.tmf.core.trace.ITmfTrace; |
| 23 | import org.eclipse.tracecompass.tmf.core.trace.TmfTraceManager; |
| 24 | |
| 25 | /** |
| 26 | * An aspect used to get the function name of a call stack event or to compare |
| 27 | * the duration of two events |
| 28 | * |
| 29 | * @author Sonia Farrah |
| 30 | */ |
| 31 | public final class SymbolAspect implements ISegmentAspect { |
| 32 | /** |
| 33 | * A symbol aspect |
| 34 | */ |
| 35 | public static final ISegmentAspect SYMBOL_ASPECT = new SymbolAspect(); |
| 36 | |
| 37 | /** |
| 38 | * Constructor |
| 39 | */ |
| 40 | public SymbolAspect() { |
| 41 | } |
| 42 | |
| 43 | @Override |
| 44 | public @NonNull String getName() { |
| 45 | return NonNullUtils.nullToEmptyString(Messages.CallStack_FunctionName); |
| 46 | } |
| 47 | |
| 48 | @Override |
| 49 | public @NonNull String getHelpText() { |
| 50 | return NonNullUtils.nullToEmptyString(Messages.CallStack_FunctionName); |
| 51 | } |
| 52 | |
| 53 | @Override |
| 54 | public @Nullable Comparator<?> getComparator() { |
| 55 | return new Comparator<ISegment>() { |
| 56 | @Override |
| 57 | public int compare(@Nullable ISegment o1, @Nullable ISegment o2) { |
| 58 | if (o1 == null || o2 == null) { |
| 59 | throw new IllegalArgumentException(); |
| 60 | } |
| 61 | return Long.compare(o1.getLength(), o2.getLength()); |
| 62 | } |
| 63 | }; |
| 64 | } |
| 65 | |
| 66 | @Override |
| 67 | public @Nullable Object resolve(@NonNull ISegment segment) { |
| 68 | if (segment instanceof ICalledFunction) { |
| 69 | ICalledFunction calledFunction = (ICalledFunction) segment; |
| 70 | // FIXME work around this trace |
| 71 | ITmfTrace trace = TmfTraceManager.getInstance().getActiveTrace(); |
| 72 | if (trace != null) { |
| 73 | String symbolText = null; |
| 74 | Object symbol = calledFunction.getSymbol(); |
| 75 | if (symbol instanceof Long) { |
| 76 | Long longAddress = (Long) symbol; |
| 77 | Collection<ISymbolProvider> providers = SymbolProviderManager.getInstance().getSymbolProviders(trace); |
| 78 | for (ISymbolProvider provider: providers) { |
| 79 | symbolText = provider.getSymbolText(longAddress); |
| 80 | if (symbolText != null) { |
| 81 | break; |
| 82 | } |
| 83 | } |
| 84 | if (symbolText == null) { |
| 85 | return "0x" + Long.toHexString(longAddress); //$NON-NLS-1$ |
| 86 | } |
| 87 | // take the start time in the query for the symbol name |
| 88 | long time = segment.getStart(); |
| 89 | int pid = calledFunction.getProcessId(); |
| 90 | if (pid > 0) { |
| 91 | for (ISymbolProvider provider: providers) { |
| 92 | String text = provider.getSymbolText(pid, time, longAddress); |
| 93 | if (text != null) { |
| 94 | return text; |
| 95 | } |
| 96 | } |
| 97 | } |
| 98 | return symbolText; |
| 99 | } |
| 100 | return String.valueOf(symbol); |
| 101 | } |
| 102 | } |
| 103 | return null; |
| 104 | } |
| 105 | } |