Examples with ImageProcess com.ibm.dtfj.image.ImageProcess used on opensource projects

Example 1 with ImageProcess

use of com.ibm.dtfj.image.ImageProcess in project openj9 by eclipse.

the class ImageFactory method hasJavaRuntime.

/**
 * Checks to see if the supplied image has an available DTFJ Java Runtime. This is to force the parsing of the jextract XML
 * for legacy DTFJ and blob parsing for DDR. It does not make any guarantees about the quality and availability of the
 * run time data.
 * @return true if a non-corrupt runtime is returned
 */
private static boolean hasJavaRuntime(ImageReference imageReference) {
    if (null == imageReference || null == imageReference.image) {
        return false;
    }
    Iterator<?> spaces = imageReference.image.getAddressSpaces();
    while ((null != spaces) && spaces.hasNext()) {
        // search address spaces
        Object obj = spaces.next();
        if ((null != obj) && (obj instanceof ImageAddressSpace)) {
            ImageAddressSpace space = (ImageAddressSpace) obj;
            Iterator<?> procs = space.getProcesses();
            while ((null != procs) && procs.hasNext()) {
                // search processes
                Object procobj = procs.next();
                if ((null != procobj) && (procobj instanceof ImageProcess)) {
                    ImageProcess proc = (ImageProcess) procobj;
                    Iterator<?> runtimes = proc.getRuntimes();
                    while ((null != runtimes) && runtimes.hasNext()) {
                        Object rtobj = runtimes.next();
                        if ((null != rtobj) && (rtobj instanceof JavaRuntime)) {
                            // found a non-corrupt java runtime
                            return true;
                        }
                    }
                }
            }
        }
    }
    return false;
}

Example 2 with ImageProcess

use of com.ibm.dtfj.image.ImageProcess in project openj9 by eclipse.

the class ImageStackFrame method getProcedureName.

public String getProcedureName() throws CorruptDataException {
    if (null == _procedureName) {
        ImageModule bestModule = null;
        ImageSymbol bestClosest = null;
        long bestDelta = Long.MAX_VALUE;
        for (Iterator i = this._space.getProcesses(); i.hasNext(); ) {
            Object nexti = i.next();
            if (nexti instanceof CorruptData)
                continue;
            ImageProcess process = (ImageProcess) nexti;
            if ((_procedureAddress.getAddress() != ((1L << process.getPointerSize()) - 1))) {
                try {
                    ImageModule module = process.getExecutable();
                    ImageSymbol closest = getClosestSymbolFrom(module);
                    long delta = getDelta(module, closest);
                    if (delta >= 0 && delta < bestDelta) {
                        bestModule = module;
                        bestClosest = closest;
                        bestDelta = delta;
                    }
                } catch (DataUnavailable e) {
                } catch (CorruptDataException e) {
                }
                try {
                    for (Iterator j = process.getLibraries(); j.hasNext(); ) {
                        Object next = j.next();
                        if (next instanceof CorruptData)
                            continue;
                        ImageModule module = (ImageModule) next;
                        ImageSymbol closest = getClosestSymbolFrom(module);
                        long delta = getDelta(module, closest);
                        if (delta >= 0 && delta < bestDelta) {
                            bestModule = module;
                            bestClosest = closest;
                            bestDelta = delta;
                        }
                    }
                } catch (DataUnavailable e) {
                } catch (CorruptDataException e) {
                }
            }
        }
        ImageSymbol closest = bestClosest;
        ImageModule module = bestModule;
        long delta = bestDelta;
        if (null != module) {
            String deltaString = "";
            if (delta == Long.MAX_VALUE) {
                deltaString = "<offset not available>";
            } else {
                if (delta >= 0) {
                    deltaString = "+0x" + Long.toHexString(delta);
                } else {
                    deltaString = "-0x" + Long.toHexString(delta);
                }
            }
            if (null != closest) {
                _procedureName = module.getName() + "::" + closest.getName() + deltaString;
            } else {
                _procedureName = module.getName() + deltaString;
            }
        }
    }
    // If we haven't found the symbol, we might as well record that fact.
    if (null == _procedureName) {
        _procedureName = "<unknown location>";
    }
    return _procedureName;
}

Example 3 with ImageProcess

use of com.ibm.dtfj.image.ImageProcess in project openj9 by eclipse.

the class XKCommand method printSymbol.

private boolean printSymbol(long pointer, long diff, int pointerSize) {
    ImageProcess ip = ctx.getProcess();
    Iterator itModule;
    try {
        itModule = ip.getLibraries();
    } catch (CorruptDataException e) {
        // FIXME
        itModule = null;
    } catch (DataUnavailable e) {
        // FIXME
        itModule = null;
    }
    while (null != itModule && itModule.hasNext()) {
        ImageModule im = (ImageModule) itModule.next();
        Iterator itImageSection = im.getSections();
        while (itImageSection.hasNext()) {
            ImageSection is = (ImageSection) itImageSection.next();
            long startAddr = is.getBaseAddress().getAddress();
            long endAddr = startAddr + is.getSize();
            if (pointer >= startAddr && pointer < endAddr) {
                /* can we find a matching symbol? */
                long maxDifference = pointer - startAddr;
                ImageSymbol bestSymbol = null;
                for (Iterator iter = im.getSymbols(); iter.hasNext(); ) {
                    Object next = iter.next();
                    if (next instanceof CorruptData)
                        continue;
                    ImageSymbol symbol = (ImageSymbol) next;
                    long symbolAddress = symbol.getAddress().getAddress();
                    if (symbolAddress <= pointer && pointer - symbolAddress < maxDifference) {
                        maxDifference = pointer - symbolAddress;
                        bestSymbol = symbol;
                    }
                }
                try {
                    out.print(im.getName());
                } catch (CorruptDataException e) {
                    out.print(Exceptions.getCorruptDataExceptionString());
                }
                out.print("::");
                if (bestSymbol == null) {
                    out.print(is.getName());
                } else {
                    out.print(bestSymbol.getName());
                }
                out.print("+");
                out.print(Long.toString(maxDifference));
                // trying to find it elsewhere in the address space
                return true;
            }
        }
    }
    return false;
}

Example 4 with ImageProcess

use of com.ibm.dtfj.image.ImageProcess in project openj9 by eclipse.

the class PHDImageAddressSpace method getImageSections.

public Iterator<ImageSection> getImageSections() {
    List<ImageSection> list = new ArrayList<ImageSection>();
    for (Iterator<ImageProcess> ip = getProcesses(); ip.hasNext(); ) {
        ImageProcess p = ip.next();
        if (p instanceof CorruptData)
            continue;
        for (Iterator<ManagedRuntime> jr = p.getRuntimes(); jr.hasNext(); ) {
            ManagedRuntime mr = jr.next();
            if (mr instanceof CorruptData)
                continue;
            if (mr instanceof JavaRuntime) {
                for (Iterator<JavaHeap> jh = ((JavaRuntime) mr).getHeaps(); jh.hasNext(); ) {
                    JavaHeap hp = jh.next();
                    if (hp instanceof CorruptData)
                        continue;
                    for (Iterator<ImageSection> is = hp.getSections(); is.hasNext(); ) {
                        // Add the corrupt sections too
                        list.add(is.next());
                    }
                }
            }
        }
    }
    if (metaImageAddressSpace != null) {
        for (Iterator it = metaImageAddressSpace.getImageSections(); it.hasNext(); ) {
            Object next = it.next();
            if (next instanceof ImageSection) {
                ImageSection section = (ImageSection) next;
                ImageSection newSection = new PHDImageSection(section.getName(), getPointer(section.getBaseAddress().getAddress()), section.getSize());
                list.add(newSection);
            }
        }
    }
    return list.iterator();
}

Example 5 with ImageProcess

use of com.ibm.dtfj.image.ImageProcess in project openj9 by eclipse.

the class InfoProcCommand method printAddressSpaceInfo.

private void printAddressSpaceInfo() {
    ImageAddressSpace ias = ctx.getAddressSpace();
    ImageProcess ip = ias.getCurrentProcess();
    if (ip == null) {
        out.print("\t(No process in this address space)\n");
    } else {
        printProcessInfo();
    }
    out.print("\n");
}