Examples with DDRInteractiveCommandException com.ibm.j9ddr.tools.ddrinteractive.DDRInteractiveCommandException used on opensource projects

Example 51 with DDRInteractiveCommandException

use of com.ibm.j9ddr.tools.ddrinteractive.DDRInteractiveCommandException in project openj9 by eclipse.

the class AllClassesCommand method run.

public void run(String command, String[] args, Context context, PrintStream out) throws DDRInteractiveCommandException {
    init();
    if (args != null) {
        if (!parseArgs(out, args)) {
            return;
        }
    }
    boolean useRange = (rangeStart != null && rangeEnd != null);
    /* If none of "rom" or "ram" is specified, then list both type of classes */
    if (!dumpROMClasses && !dumpRAMClasses) {
        dumpROMClasses = dumpRAMClasses = true;
    }
    try {
        J9JavaVMPointer vm = J9RASHelper.getVM(DataType.getJ9RASPointer());
        if (dumpRAMClasses) {
            out.append("RAM classes (ram size loader rom replacement name)" + nl);
            out.append("Class addr\tsize\t\tClassLoader\tROM class addr\tArray\tClass name" + nl);
            out.append(nl);
            ClassSegmentIterator classSegmentIterator = new ClassSegmentIterator(vm.classMemorySegments());
            while (classSegmentIterator.hasNext()) {
                J9ClassPointer classPointer = J9ClassPointer.NULL;
                try {
                    classPointer = (J9ClassPointer) classSegmentIterator.next();
                    if (useRange) {
                        if (classPointer.getAddress() < rangeStart.getAddress() || classPointer.getAddress() >= rangeEnd.getAddress()) {
                            /* J9Class is outside of specified range; skip it. */
                            continue;
                        }
                    }
                    // 0x02713400 0x00000148 0x001210cc 0x02da2f20 0x00000000
                    // java/util/regex/Pattern$Begin
                    out.append(classPointer.getHexAddress());
                    out.append('\t');
                    out.append(J9ClassHelper.size(classPointer, vm).getHexValue());
                    out.append('\t');
                    out.append(classPointer.classLoader().getHexAddress());
                    out.append('\t');
                    out.append(classPointer.romClass().getHexAddress());
                    out.append('\t');
                    if (J9ClassHelper.isSwappedOut(classPointer)) {
                        out.append(classPointer.arrayClass().getHexAddress());
                    } else {
                        out.append('0');
                    }
                    out.append('\t');
                    out.append(J9ClassHelper.getJavaName(classPointer));
                    out.append(nl);
                } catch (CorruptDataException e) {
                    if (useRange) {
                        if (classPointer.getAddress() < rangeStart.getAddress() || classPointer.getAddress() >= rangeEnd.getAddress()) {
                            /* J9Class that caused CorruptDataException is outside of specified range; skip it. */
                            continue;
                        }
                    }
                }
            }
        }
        if (dumpROMClasses) {
            ROMClassesIterator iterator = null;
            out.append(nl);
            if (useRange) {
                iterator = new ROMClassesRangeIterator(out, rangeStart, rangeEnd);
                /* Classloader is not available when using ROMClassesRangeIterator */
                out.append("ROM classes (rom size modifiers name)" + nl);
                out.append("Class addr\tROM size\tModifiers\tExtra\t\tClass name" + nl);
            } else {
                iterator = new ROMClassesIterator(out, vm.classMemorySegments());
                out.append("ROM classes (rom size loader modifiers name)" + nl);
                out.append("Class addr\tROM size\tClassLoader\tModifiers\tExtra\t\tClass name" + nl);
            }
            out.append(nl);
            while (iterator.hasNext()) {
                J9ROMClassPointer classPointer = iterator.next();
                out.append(classPointer.getHexAddress());
                out.append('\t');
                out.append(classPointer.romSize().getHexValue());
                /* MemorySegment is not available when using ROMClassesRangeIterator */
                if (iterator.getMemorySegmentPointer() != J9MemorySegmentPointer.NULL) {
                    out.append('\t');
                    out.append(iterator.getMemorySegmentPointer().classLoader().getHexAddress());
                }
                out.append('\t');
                out.append(classPointer.modifiers().getHexValue());
                out.append('\t');
                out.append(classPointer.extraModifiers().getHexValue());
                out.append('\t');
                out.append(J9UTF8Helper.stringValue(classPointer.className()));
                out.append(nl);
            }
            out.append(nl);
        }
    } catch (CorruptDataException e) {
        throw new DDRInteractiveCommandException(e);
    }
}

Example 52 with DDRInteractiveCommandException

use of com.ibm.j9ddr.tools.ddrinteractive.DDRInteractiveCommandException in project openj9 by eclipse.

the class AnalyseRomClassUTF8Command method run.

public void run(String command, String[] args, Context context, PrintStream out) throws DDRInteractiveCommandException {
    try {
        boolean printUTF8WeightList = false;
        int maxDistributionPercent = 85;
        if ((args.length >= 1) && (args[0].equals("UTF8WeightList"))) {
            printUTF8WeightList = true;
        }
        for (int i = 0; i < args.length; i++) {
            if (args[i].endsWith("%")) {
                try {
                    // Parses the maxDistribution string such as 85%
                    maxDistributionPercent = DecimalFormat.getInstance().parse(args[i]).intValue();
                } catch (ParseException e) {
                    out.println("Usage: !analyseromClassutf8 [UTF8WeightList] [maxDistribution%]		maxDistribution defaults to 85%");
                }
            }
        }
        Statistics statistics = new Statistics();
        J9JavaVMPointer vm = J9RASHelper.getVM(DataType.getJ9RASPointer());
        ROMClassesIterator classSegmentIterator = new ROMClassesIterator(out, vm.classMemorySegments());
        J9ObjectPointer bootstraploader = vm.systemClassLoader().classLoaderObject();
        while (classSegmentIterator.hasNext()) {
            J9ROMClassPointer classPointer = (J9ROMClassPointer) classSegmentIterator.next();
            ClassWalker classWalker = new RomClassWalker(classPointer, context);
            LinearDumper linearDumper = new LinearDumper();
            J9ClassRegionNode allRegionsNode = linearDumper.getAllRegions(classWalker);
            statistics.add(allRegionsNode, classSegmentIterator, bootstraploader);
        }
        statistics.getResult(printUTF8WeightList, maxDistributionPercent, out);
    } catch (CorruptDataException e) {
        throw new DDRInteractiveCommandException(e);
    }
}

Example 53 with DDRInteractiveCommandException

use of com.ibm.j9ddr.tools.ddrinteractive.DDRInteractiveCommandException in project openj9 by eclipse.

the class WhatIsCommand method runWhatIs.

private void runWhatIs(String[] args, Context context, PrintStream out) throws DDRInteractiveCommandException {
    if (args.length == 0) {
        badOrMissingSearchValue(out);
        return;
    }
    long address = CommandUtils.parsePointer(args[0], J9BuildFlags.env_data64);
    UDATA localSearchValue = new UDATA(address);
    if (localSearchValue.eq(0)) {
        badOrMissingSearchValue(out);
        return;
    }
    if (searchValue == null || !searchValue.eq(localSearchValue)) {
        searchValue = localSearchValue;
    } else {
        out.println("Skip count now " + (++skipCount) + ". Run !whatis 0 to reset it.");
    }
    resetFieldData();
    long startTime = System.currentTimeMillis();
    // Walk from the VM
    J9JavaVMPointer vm = null;
    try {
        vm = J9RASHelper.getVM(DataType.getJ9RASPointer());
    } catch (CorruptDataException e) {
        throw new DDRInteractiveCommandException("Couldn't get VM", e);
    }
    boolean found = walkStructuresFrom(vm);
    // Walk from each VM thread
    if (!found) {
        try {
            J9VMThreadPointer mainThread = vm.mainThread();
            List<J9VMThreadPointer> threads = new LinkedList<J9VMThreadPointer>();
            if (mainThread.notNull()) {
                J9VMThreadPointer threadCursor = vm.mainThread();
                do {
                    threads.add(threadCursor);
                    threadCursor = threadCursor.linkNext();
                } while (!threadCursor.eq(mainThread) && !found);
                /* Walk the thread list backwards so we will find the match next to the closest thread (prevents walkStructures from doing anything useful with the linkNext list) */
                Collections.reverse(threads);
                for (J9VMThreadPointer thisThread : threads) {
                    found = walkStructuresFrom(thisThread);
                    if (found) {
                        break;
                    }
                }
            }
        } catch (CorruptDataException e) {
            out.println("CDE walking thread list.");
            e.printStackTrace(out);
        }
    }
    // Walk from each class
    if (!found) {
        try {
            GCClassLoaderIterator it = GCClassLoaderIterator.from();
            OUTER: while (it.hasNext()) {
                J9ClassLoaderPointer loader = it.next();
                Iterator<J9ClassPointer> classIt = ClassIterator.fromJ9Classloader(loader);
                while (classIt.hasNext()) {
                    J9ClassPointer clazz = classIt.next();
                    found = walkStructuresFrom(clazz);
                    if (found) {
                        break OUTER;
                    }
                }
            }
        } catch (CorruptDataException e) {
            out.println("CDE walking classes.");
            e.printStackTrace(out);
        }
    }
    long stopTime = System.currentTimeMillis();
    if (found) {
        out.println("Match found");
    } else {
        out.println("No match found");
        if (closestAboveStack != null) {
            out.print("Closest above was: ");
            closestAboveStack.dump(out);
            out.print(" at " + closestAbove.getHexValue());
            out.println();
        } else {
            out.println("No values found above search value");
        }
        if (closestBelowStack != null) {
            out.print("Closest below was: ");
            closestBelowStack.dump(out);
            out.print(" at " + closestBelow.getHexValue());
            out.println();
        } else {
            out.println("No values found below search value");
        }
        if (shortestHammingDistanceStack != null) {
            out.print("Value with shortest hamming distance (fewest single-bit changes required) was: ");
            shortestHammingDistanceStack.dump(out);
            out.print(" at " + shortestHammingDistance.getHexValue());
            out.print(". Hamming distance = " + hammingDistance);
            out.println();
        }
        /* Reset search value - so if someone reruns the same (unsuccessful) search again it won't set skipCount to 1 */
        searchValue = null;
    }
    out.println("Searched " + fieldCount + " fields to a depth of " + maxDepth + " in " + (stopTime - startTime) + " ms");
    resetFieldData();
}

Example 54 with DDRInteractiveCommandException

use of com.ibm.j9ddr.tools.ddrinteractive.DDRInteractiveCommandException in project openj9 by eclipse.

the class DumpStringTableCommand method run.

public void run(String command, String[] args, Context context, PrintStream out) throws DDRInteractiveCommandException {
    Set<J9ObjectPointer> stringTableObjects = null;
    try {
        stringTableObjects = getStringTableObjects();
    } catch (CorruptDataException e) {
        throw new DDRInteractiveCommandException(e.getMessage(), e);
    }
    for (J9ObjectPointer objectPointer : stringTableObjects) {
        String value = "**CORRUPT STRING TABLE ELEMENT **";
        try {
            value = J9ObjectHelper.stringValue(objectPointer);
        } catch (CorruptDataException e) {
        // ignore
        }
        String hexAddr = objectPointer.formatShortInteractive();
        out.println(String.format("%s value = <%s>", hexAddr, value));
    }
    out.println("Table Size = " + stringTableObjects.size());
}

Example 55 with DDRInteractiveCommandException

use of com.ibm.j9ddr.tools.ddrinteractive.DDRInteractiveCommandException in project openj9 by eclipse.

the class FindMethodFromPcCommand method run.

public void run(String command, String[] args, Context context, PrintStream out) throws DDRInteractiveCommandException {
    try {
        long address = CommandUtils.parsePointer(args[0], J9BuildFlags.env_data64);
        U8Pointer pc = U8Pointer.cast(address);
        J9JavaVMPointer vm = J9RASHelper.getVM(DataType.getJ9RASPointer());
        if (pc.isNull()) {
            CommandUtils.dbgPrint(out, "bad or missing PC\n");
            return;
        }
        CommandUtils.dbgPrint(out, "Searching for PC=%s in VM=%s...\n", pc.getHexAddress(), vm.getHexAddress());
        J9MethodPointer result = J9JavaVMHelper.getMethodFromPC(vm, pc);
        if (!result.isNull()) {
            CommandUtils.dbgPrint(out, "!j9method %s %s\n", result.getHexAddress(), J9MethodHelper.getName(result));
            CommandUtils.dbgPrint(out, "Bytecode PC offset = %s\n", pc.sub(result.bytecodes()).getHexValue());
        } else {
            CommandUtils.dbgPrint(out, "Not found\n");
        }
    } catch (CorruptDataException e) {
        throw new DDRInteractiveCommandException(e);
    }
}