Examples with MissingDDRStructuresException com.ibm.j9ddr.exceptions.MissingDDRStructuresException used on opensource projects

Example 1 with MissingDDRStructuresException

use of com.ibm.j9ddr.exceptions.MissingDDRStructuresException in project openj9 by eclipse.

the class DDRInteractive method locateRuntimes.

private void locateRuntimes(ICore reader) {
    currentCore = reader;
    Collection<? extends IAddressSpace> spaces = reader.getAddressSpaces();
    for (IAddressSpace thisSpace : spaces) {
        // indicates if a context has been allocated for the address space
        boolean hasCtxBeenAddedForAS = false;
        Collection<? extends IProcess> processes = thisSpace.getProcesses();
        for (IProcess thisProcess : processes) {
            hasCtxBeenAddedForAS = true;
            try {
                IVMData vmData = VMDataFactory.getVMData(thisProcess);
                if (vmData != null) {
                    contexts.add(new Context(thisProcess, vmData, nonVMCommands));
                } else {
                    addMissingJVMToContexts(thisProcess);
                }
            } catch (JVMNotDDREnabledException e) {
                addMissingJVMToContexts(thisProcess);
            } catch (JVMNotFoundException e) {
                addMissingJVMToContexts(thisProcess);
            } catch (MissingDDRStructuresException e) {
                addMissingJVMToContexts(thisProcess);
            } catch (IOException e) {
                System.err.println("Problem searching for VMData in process " + thisProcess);
                e.printStackTrace();
                // put the stack trace to the log
                Logger logger = Logger.getLogger(LoggerNames.LOGGER_INTERACTIVE_CONTEXT);
                StringWriter sw = new StringWriter();
                PrintWriter pw = new PrintWriter(sw);
                e.printStackTrace(pw);
                logger.logp(FINE, null, null, sw.toString());
            }
        }
        if (!hasCtxBeenAddedForAS) {
            ASNoProcess as = new ASNoProcess(thisSpace);
            addMissingJVMToContexts(as);
        }
    }
    if (contexts.size() == 0) {
        throw new RuntimeException("Couldn't find any address spaces in this dump");
    } else {
        // default to the first address space
        currentContext = contexts.get(0);
        for (Context ctx : contexts) {
            // but if there is one with a JVM in it, set it to that
            if (!(ctx.vmData instanceof MissingVMData)) {
                currentContext = ctx;
                break;
            }
        }
    }
}

Example 2 with MissingDDRStructuresException

use of com.ibm.j9ddr.exceptions.MissingDDRStructuresException in project openj9 by eclipse.

the class VMDataFactory method foundRAS.

private static ImageInputStream foundRAS(IProcess addressSpace, long candidateAddress) throws IOException {
    try {
        j9RASAddress = candidateAddress;
        String structureFileName = System.getProperty(STRUCTUREFILE_PROPERTY);
        if (structureFileName != null) {
            // for it in the blob archive
            try {
                return getStructureDataFromFile(structureFileName, addressSpace);
            } catch (FileNotFoundException e) {
                return getBlobFromArchive(structureFileName, addressSpace);
            }
        }
        int j9RASVersion = addressSpace.getIntAt(candidateAddress + J9RAS_VERSION_OFFSET);
        short j9RASMajorVersion = (short) (j9RASVersion >> 16);
        if (j9RASMajorVersion < MINIMUM_J9RAS_MAJOR_VERSION) {
            return locateInServiceVMStructure(addressSpace);
        }
        long ddrDataStart = addressSpace.getPointerAt(candidateAddress + DDR_DATA_POINTER_OFFSET);
        if (0 == ddrDataStart) {
            // CMVC 172446 : no valid address to DDR blob, so see if we can locate it via the blob archive
            try {
                return locateInServiceVMStructure(addressSpace);
            } catch (IOException e) {
                // failed to locate a blob
                MissingDDRStructuresException ioe = new MissingDDRStructuresException(addressSpace, "System dump was generated by a DDR-enabled JVM, but did not contain embedded DDR structures. This dump cannot be analyzed by DDR. " + "You can specify the location of a DDR structure file to use with the " + STRUCTUREFILE_PROPERTY + " system property");
                ioe.initCause(e);
                throw ioe;
            }
        }
        // the address may be a marker to treat it in a special way, rather than as an actual address
        // -1 = the blob is located directly after this structure
        // -2 = there is only a blob descriptor loaded
        long marker = (addressSpace.bytesPerPointer() == 4) ? 0xFFFFFFFF00000000L | ddrDataStart : ddrDataStart;
        if (marker == -2) {
            StructureHeader header = new StructureHeader((byte) 1);
            ddrDataStart = candidateAddress + DDR_DATA_POINTER_OFFSET + (addressSpace.bytesPerPointer() * 2);
            ImageInputStream stream = new IMemoryImageInputStream(addressSpace, ddrDataStart);
            header.readBlobVersion(stream);
            return getBlobFromLibrary(addressSpace, header);
        }
        if (marker == -1) {
            if (j9RASVersion == 0x100000) {
                // there is one pointer in the way that needs to be skipped over
                ddrDataStart = candidateAddress + DDR_DATA_POINTER_OFFSET + (addressSpace.bytesPerPointer() * 2);
            } else {
                MissingDDRStructuresException ioe = new MissingDDRStructuresException(addressSpace, "System dump was generated by a DDR-enabled JVM, but did not contain embedded DDR structures. This dump cannot be analyzed by DDR. " + "You can specify the location of a DDR structure file to use with the " + STRUCTUREFILE_PROPERTY + " system property");
                throw ioe;
            }
        }
        return new IMemoryImageInputStream(addressSpace, ddrDataStart);
    } catch (MemoryFault e) {
        // put the stack trace to the log
        Logger logger = Logger.getLogger(LoggerNames.LOGGER_STRUCTURE_READER);
        StringWriter sw = new StringWriter();
        PrintWriter pw = new PrintWriter(sw);
        e.printStackTrace(pw);
        logger.logp(FINE, null, null, sw.toString());
        throw new IOException(e.getMessage());
    }
}

Example 3 with MissingDDRStructuresException

use of com.ibm.j9ddr.exceptions.MissingDDRStructuresException in project openj9 by eclipse.

the class VMDataFactory method getAllVMData.

// TODO - fix this for z/OS which will require noting which RAS symbols have already been found in the core
/**
 * Finds all of the blobs in a given process and wraps them in a IVMData structure.
 *
 * @param process process to scan
 * @return all located blobs
 * @throws IOException re-throws IOExceptions
 */
public static synchronized List<IVMData> getAllVMData(IProcess process) throws IOException {
    List<IVMData> cachedVMData = vmDataCache.get(process);
    if (cachedVMData != null) {
        return cachedVMData;
    }
    // nothing in the cache for this process, so need to scan
    // Get an ImageInputStream on the Structure Offset Data.  This may or may not be in the core file itself.
    List<IVMData> data = new ArrayList<IVMData>();
    ImageInputStream in = null;
    // End Of Memory
    boolean EOM = false;
    long address = 0;
    j9RASAddress = 0;
    while (!EOM) {
        try {
            address = j9RASAddress + 1;
            in = getStructureDataFile(process, address);
            if (in != null) {
                EOM = !(in instanceof IMemoryImageInputStream);
                IVMData vmdata = getVMData(process, in);
                data.add(vmdata);
                if (vmdata.getClassLoader().getHeader().getCoreVersion() == 1) {
                    // version 1 does not support multiple blobs
                    EOM = true;
                    break;
                }
            } else {
                EOM = true;
            }
        } catch (JVMNotFoundException e) {
            // no more JVMs were found
            EOM = true;
        } catch (JVMNotDDREnabledException e) {
            // an older JVM was found, so ignore that and carry on looking
            // on z/OS a failure with the j9ras symbol resolution aborts the scan
            EOM = EOM | (process.getPlatform() == Platform.ZOS);
            continue;
        } catch (MissingDDRStructuresException e) {
            // cannot process as the structures are missing
            // on z/OS a failure with the j9ras symbol resolution aborts the scan
            EOM = EOM | (process.getPlatform() == Platform.ZOS);
            continue;
        } catch (CorruptStructuresException e) {
            // cannot process as the structures are corrupt and cannot be read
            // on z/OS a failure with the j9ras symbol resolution aborts the scan
            EOM = EOM | (process.getPlatform() == Platform.ZOS);
            continue;
        } catch (IOException e) {
            continue;
        }
    }
    // scan is switched off for Java-only applications (specifically jdmpview) via a system property.
    if ((System.getProperty(NOEXTRASEARCHFORNODE_PROPERTY) == null) && (data.size() == 0)) {
        StructureHeader header = null;
        try {
            header = findNodeVersion(process);
        } catch (Exception e) {
            if (e instanceof IOException) {
                throw (IOException) e;
            } else {
                IOException ioe = new IOException();
                // avoid use of IOException(throwable) to be compatible with J5
                ioe.initCause(e);
                throw ioe;
            }
        }
        if (header != null) {
            in = getBlobFromLibrary(process, header);
            if (in != null) {
                IVMData vmdata = getVMData(process, in);
                data.add(vmdata);
            }
        }
    }
    vmDataCache.put(process, data);
    return data;
}