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

Example 1 with ImageSymbol

use of com.ibm.dtfj.image.ImageSymbol 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 2 with ImageSymbol

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

the class ImageProcessBuilder method addRoutine.

public ImageSymbol addRoutine(ImageModule library, String name, long address) {
    ImagePointer addr = fImageAddressSpace.getPointer(address);
    ImageSymbol symbol = new JCImageSymbol(name, addr);
    JCImageModule mod = (JCImageModule) library;
    mod.addSymbol(symbol);
    return symbol;
}

Example 3 with ImageSymbol

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

the class ImageSymbolTest method loadTestObjects.

protected void loadTestObjects(JavaRuntime ddrRuntime, List<Object> ddrObjects, JavaRuntime jextractRuntime, List<Object> jextractObjects) {
    Exception ddrException = null;
    Exception jextractException = null;
    Iterator<?> ddrLibIt = null;
    try {
        ddrLibIt = ddrProcess.getLibraries();
    } catch (Exception e) {
        e.printStackTrace();
        ddrException = e;
    }
    Iterator<?> jextractLibIt = null;
    try {
        jextractLibIt = jextractProcess.getLibraries();
    } catch (Exception e) {
        e.printStackTrace();
        jextractException = e;
    }
    if (ddrException != null || jextractException != null) {
        if (ddrException != null && jextractException != null) {
            assertEquals(jextractException.getClass(), ddrException.getClass());
            return;
        }
        if (ddrException != null) {
            fail("DDR threw an exception getting libraries and JExtract didn't");
        }
        if (jextractException != null) {
            fail("JExtract threw an exception getting libraries and DDR didn't");
        }
    }
    slurpSymbolsFromLibraryIterator(ddrLibIt, ddrObjects);
    slurpSymbolsFromLibraryIterator(jextractLibIt, jextractObjects);
    Comparator<Object> c = new Comparator<Object>() {

        public int compare(Object o1, Object o2) {
            ImageSymbol sym1 = (ImageSymbol) o1;
            ImageSymbol sym2 = (ImageSymbol) o2;
            return (int) Long.signum(sym1.getAddress().getAddress() - sym2.getAddress().getAddress());
        }
    };
    Collections.sort(ddrObjects, c);
    Collections.sort(jextractObjects, c);
}

Example 4 with ImageSymbol

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

the class ImageSymbolTest method slurpSymbolsFromLibraryIterator.

private void slurpSymbolsFromLibraryIterator(Iterator<?> it, List<Object> list) {
    while (it.hasNext()) {
        Object obj = it.next();
        if (obj instanceof ImageModule) {
            ImageModule mod = (ImageModule) obj;
            Iterator<?> symIt = mod.getSymbols();
            while (symIt.hasNext()) {
                Object symObj = symIt.next();
                if (symObj instanceof ImageSymbol) {
                    list.add(symObj);
                } else {
                    System.err.println("Skipping symbol object: " + symObj + ", type " + symObj.getClass().getName());
                }
            }
        } else {
            System.err.println("Skipping module object: " + obj + ", type " + obj.getClass().getName());
        }
    }
}

Example 5 with ImageSymbol

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

the class J9DDRImageModule method getSymbols.

/* (non-Javadoc)
	 * @see com.ibm.dtfj.image.ImageModule#getSymbols()
	 */
public Iterator<?> getSymbols() {
    Collection<? extends ISymbol> symbols;
    try {
        symbols = delegate.getSymbols();
    } catch (DataUnavailableException e) {
        // JEXTRACT slightly arbitrary code here. DTFJ/JExtract uses the base address of the .text section as the
        // address of the corrupt data. We do the same for compatibility's sake.
        Collection<? extends IMemoryRange> memoryRanges = delegate.getMemoryRanges();
        long baseAddress = 0;
        for (IMemoryRange range : memoryRanges) {
            if (range.getName().contains(".text")) {
                baseAddress = range.getBaseAddress();
                break;
            }
        }
        return Collections.singletonList(new J9DDRCorruptData(process, e.getMessage(), baseAddress)).iterator();
    }
    List<ImageSymbol> dtfjSymbols = new ArrayList<ImageSymbol>(symbols.size());
    for (ISymbol symbol : symbols) {
        dtfjSymbols.add(new J9DDRImageSymbol(symbol.getName(), new J9DDRImagePointer(process, symbol.getAddress())));
    }
    return dtfjSymbols.iterator();
}