Examples with CorruptDataException com.ibm.j9ddr.CorruptDataException used on opensource projects

Example 76 with CorruptDataException

use of com.ibm.j9ddr.CorruptDataException in project openj9 by eclipse.

the class RomClassForNameCommand method run.

public void run(String command, String[] args, Context context, PrintStream out) throws DDRInteractiveCommandException {
    if (args.length == 0) {
        printUsage(out);
        return;
    }
    try {
        J9JavaVMPointer vm = J9RASHelper.getVM(DataType.getJ9RASPointer());
        ROMClassesIterator iterator = new ROMClassesIterator(out, vm.classMemorySegments());
        int hitCount = 0;
        String searchClassName = args[0];
        PatternString pattern = new PatternString(searchClassName);
        out.println(String.format("Searching for ROMClasses named '%1$s' in VM=%2$s", searchClassName, Long.toHexString(vm.getAddress())));
        while (iterator.hasNext()) {
            J9ROMClassPointer romClassPointer = iterator.next();
            String javaName = J9UTF8Helper.stringValue(romClassPointer.className());
            if (pattern.isMatch(javaName)) {
                hitCount++;
                String hexString = romClassPointer.getHexAddress();
                out.println(String.format("!j9romclass %1$s named %2$s", hexString, javaName));
            }
        }
        out.println(String.format("Found %1$d ROMClass(es) named %2$s", hitCount, searchClassName));
    } catch (CorruptDataException e) {
        throw new DDRInteractiveCommandException(e);
    }
}

Example 77 with CorruptDataException

use of com.ibm.j9ddr.CorruptDataException in project openj9 by eclipse.

the class RomClassSummaryCommand method run.

public void run(String command, String[] args, Context context, PrintStream out) throws DDRInteractiveCommandException {
    try {
        boolean requiredLocal = false;
        boolean requiredShared = false;
        boolean required16bitnas = false;
        J9SharedClassConfigPointer sc = J9SharedClassConfigPointer.NULL;
        J9JavaVMPointer vm = J9RASHelper.getVM(DataType.getJ9RASPointer());
        long startAddress = 0, endAddress = 0;
        if ((args != null) && (args.length >= 1)) {
            if (args[0].equals("shared")) {
                requiredShared = true;
            } else if (args[0].equals("local")) {
                requiredLocal = true;
            } else if (args[0].equals("16bitnas")) {
                required16bitnas = true;
            } else {
                out.println("USAGE: !romclasssummary [local|shared] [16bitnas]");
                return;
            }
            if ((args.length >= 2) && (args[1].equals("16bitnas"))) {
                required16bitnas = true;
            }
            if (requiredShared || requiredLocal) {
                sc = vm.sharedClassConfig();
                if (requiredShared && sc.isNull()) {
                    out.println("The request for '" + args[0] + " classes' failed, because " + "shared classes were not enabled on that dump file.");
                    return;
                }
                if (sc.notNull()) {
                    startAddress = UDATA.cast(sc.cacheDescriptorList().romclassStartAddress()).longValue();
                    J9SharedCacheHeaderPointer header = sc.cacheDescriptorList().cacheStartAddress();
                    endAddress = UDATA.cast(header).add(header.segmentSRP()).longValue();
                }
            }
        }
        ClassSummaryHelper classSummaryHelper = new ClassSummaryHelper(preferredOrder);
        Statistics statistics = new Statistics();
        ROMClassesIterator classSegmentIterator = new ROMClassesIterator(out, vm.classMemorySegments());
        while (classSegmentIterator.hasNext()) {
            J9ROMClassPointer classPointer = (J9ROMClassPointer) classSegmentIterator.next();
            if (requiredShared || requiredLocal) {
                boolean isShared;
                if (sc.notNull()) {
                    long classAddress = classPointer.getAddress();
                    isShared = classAddress >= startAddress && classAddress < endAddress;
                } else {
                    isShared = false;
                }
                if (requiredShared && !isShared)
                    continue;
                if (requiredLocal && isShared)
                    continue;
            }
            ClassWalker classWalker = new RomClassWalker(classPointer, context);
            LinearDumper linearDumper = new LinearDumper();
            J9ClassRegionNode allRegionsNode = linearDumper.getAllRegions(classWalker);
            classSummaryHelper.addRegionsForClass(allRegionsNode);
            if (required16bitnas) {
                statistics.add(allRegionsNode);
            }
        }
        classSummaryHelper.printStatistics(out);
        if (statistics.nameAndSignatureSRP16bitSize != -1) {
            out.println();
            out.println("<Total 16bit nameAndSignatureSRPs Size>");
            out.println(statistics.nameAndSignatureSRP16bitSize);
        }
        if (statistics.nameAndSignatureSRPCount != -1 && statistics.cpFieldNASCount != -1) {
            out.println();
            out.println("<Shared nameAndSignatureSRPs>");
            // nameAndSignatureSRPCount is divided by 2, because there is a name and a signature per NAS field
            out.println(statistics.cpFieldNASCount - statistics.nameAndSignatureSRPCount / 2);
        }
    } catch (CorruptDataException e) {
        throw new DDRInteractiveCommandException(e);
    }
}

Example 78 with CorruptDataException

use of com.ibm.j9ddr.CorruptDataException in project openj9 by eclipse.

the class MonitorsCommand method tablePrintHelper.

/**
 * Helper to print monitor tables.
 *
 * @param filter
 * @param builder
 * @param objectMonitorPointer
 * @return
 * @throws DDRInteractiveCommandException
 */
private ObjectMonitor tablePrintHelper(FilterOptions filter, StringBuilder builder, J9ObjectMonitorPointer objectMonitorPointer) throws DDRInteractiveCommandException {
    try {
        J9ThreadMonitorPointer threadMonitorPointer = objectMonitorPointer.monitor();
        J9ThreadAbstractMonitorPointer lock = J9ThreadAbstractMonitorPointer.cast(threadMonitorPointer);
        if (lock.flags().allBitsIn(J9ThreadAbstractMonitor.J9THREAD_MONITOR_OBJECT)) {
            if (!lock.userData().eq(0)) {
                // this is an object monitor in the system monitor table
                J9ObjectPointer obj = J9ObjectPointer.cast(lock.userData());
                ObjectMonitor objMon = ObjectAccessBarrier.getMonitor(obj);
                if (null != objMon) {
                    writeObjectMonitorToBuffer(filter, objMon, builder);
                    return objMon;
                }
            }
        }
    } catch (CorruptDataException e) {
        throw new DDRInteractiveCommandException(e);
    }
    return null;
}

Example 79 with CorruptDataException

use of com.ibm.j9ddr.CorruptDataException in project openj9 by eclipse.

the class MonitorsCommand method objectCommand.

/**
 * See {@link MonitorsCommand#helpCommand(String[], PrintStream)} for
 * function documentation
 *
 * @param args
 *            command args
 * @param out
 *            the output stream
 */
private void objectCommand(String[] args, PrintStream out) throws DDRInteractiveCommandException {
    FilterOptions filter = FilterOptions.defaultOption();
    try {
        J9ObjectPointer object = null;
        if (args.length < 2) {
            out.println("This command takes one address \"!monitors object <J9Object address>\"");
            return;
        }
        long objectAddr = Long.decode(args[1]);
        object = J9ObjectPointer.cast(objectAddr);
        ObjectMonitor objMonitor = ObjectMonitor.fromJ9Object(object);
        if (null == objMonitor) {
            out.printf("No corresponding monitor was found for %s\n", object.getHexAddress());
        } else {
            writeObjectMonitor(filter, objMonitor, out);
        }
    } catch (CorruptDataException e) {
        throw new DDRInteractiveCommandException(e);
    }
}

Example 80 with CorruptDataException

use of com.ibm.j9ddr.CorruptDataException in project openj9 by eclipse.

the class MonitorsCommand method j9threadCommand.

/**
 * See {@link MonitorsCommand#helpCommand(String[], PrintStream)} for
 * function documentation
 *
 * @param args
 *            command args
 * @param out
 *            the output stream
 * @throws DDRInteractiveCommandException
 */
private void j9threadCommand(String[] args, PrintStream out) throws DDRInteractiveCommandException {
    if (args.length < 2) {
        out.println("This command takes one address argument: \"!monitors j9thread <address>\"");
        return;
    }
    try {
        long address = CommandUtils.parsePointer(args[1], J9BuildFlags.env_data64);
        VoidPointer ptr = VoidPointer.cast(address);
        J9JavaVMPointer vm = J9RASHelper.getVM(DataType.getJ9RASPointer());
        J9VMThreadPointer mainThread = vm.mainThread();
        if (mainThread.isNull() || mainThread.osThread().isNull() || mainThread.osThread().library().isNull()) {
            throw new CorruptDataException("Cannot locate thread library");
        }
        J9ThreadLibraryPointer lib = mainThread.osThread().library();
        J9PoolPointer pool = lib.thread_pool();
        Pool<J9ThreadPointer> threadPool = Pool.fromJ9Pool(pool, J9ThreadPointer.class);
        SlotIterator<J9ThreadPointer> poolIterator = threadPool.iterator();
        J9ThreadPointer osThreadPtr = null;
        while (poolIterator.hasNext()) {
            if (ptr.equals(poolIterator.next())) {
                osThreadPtr = J9ThreadPointer.cast(ptr);
            }
        }
        if (null == osThreadPtr) {
            throw new DDRInteractiveCommandException(String.format("Could not find any j9thread at address %s\n", ptr.getHexAddress()));
        }
        // Is there an associated J9VMThread?
        J9VMThreadPointer vmThread = J9ThreadHelper.getVMThread(osThreadPtr);
        // Step 1: Print the general info for the VM and native threads:
        out.println(String.format("%s\t%s\t// %s", osThreadPtr.formatShortInteractive(), vmThread.notNull() ? vmThread.formatShortInteractive() : "<none>", vmThread.notNull() ? J9VMThreadHelper.getName(vmThread) : "[osthread]"));
        printMonitorsForJ9Thread(out, vm, osThreadPtr);
    } catch (CorruptDataException e) {
        throw new DDRInteractiveCommandException(e);
    }
}