Examples with J9ROMFieldShapeIterator com.ibm.j9ddr.vm29.j9.J9ROMFieldShapeIterator used on opensource projects

Example 1 with J9ROMFieldShapeIterator

use of com.ibm.j9ddr.vm29.j9.J9ROMFieldShapeIterator in project openj9 by eclipse.

the class J9BCUtil method j9bcutil_dumpRomClass.

public static void j9bcutil_dumpRomClass(PrintStream out, J9ROMClassPointer romClass, long flags) throws CorruptDataException {
    out.append((String.format("ROM Size: 0x%s (%d)", Long.toHexString(romClass.romSize().longValue()), romClass.romSize().longValue())));
    out.append(nl);
    out.append(String.format("Class Name: %s", J9UTF8Helper.stringValue(romClass.className())));
    out.append(nl);
    if (romClass.superclassName().isNull()) {
        out.append("Superclass Name: <none>");
    } else {
        out.append(String.format("Superclass Name: %s", J9UTF8Helper.stringValue(romClass.superclassName())));
    }
    out.append(nl);
    /* dump the source file name */
    dumpSourceFileName(out, romClass, flags);
    /* dump the simple name */
    dumpSimpleName(out, romClass, flags);
    /* dump the class generic signature */
    dumpGenericSignature(out, romClass, flags);
    /* dump the enclosing method */
    dumpEnclosingMethod(out, romClass, flags);
    out.append(String.format("Sun Access Flags (0x%s): ", Long.toHexString(romClass.modifiers().longValue())));
    dumpModifiers(out, romClass.modifiers().longValue(), MODIFIERSOURCE_CLASS, ONLY_SPEC_MODIFIERS);
    out.append(String.format("J9  Access Flags (0x%s): ", Long.toHexString(romClass.extraModifiers().longValue())));
    dumpClassJ9ExtraModifiers(out, romClass.extraModifiers().longValue());
    out.append(nl);
    out.append(String.format("Class file version: %d.%d", romClass.majorVersion().longValue(), romClass.minorVersion().longValue()));
    out.append(nl);
    out.append(String.format("Instance Shape: 0x%s", Long.toHexString(romClass.instanceShape().longValue())));
    out.append(nl);
    out.append(String.format("Intermediate Class Data (%d bytes): %s", romClass.intermediateClassDataLength().longValue(), Long.toHexString(romClass.intermediateClassData().longValue())));
    out.append(nl);
    out.append(String.format("Maximum Branch Count: %d", romClass.maxBranchCount().longValue()));
    out.append(nl);
    out.append(String.format("Interfaces (%d):" + nl, romClass.interfaceCount().longValue()));
    if (!romClass.interfaceCount().eq(0)) {
        SelfRelativePointer interfaces = romClass.interfaces();
        long interfaceCount = romClass.interfaceCount().longValue();
        for (int i = 0; i < interfaceCount; i++) {
            out.append("  ");
            J9UTF8Pointer interfaceName = J9UTF8Pointer.cast(interfaces.get());
            out.append(J9UTF8Helper.stringValue(interfaceName));
            out.append(nl);
            interfaces = interfaces.add(1);
        }
    }
    J9UTF8Pointer outerClassName = romClass.outerClassName();
    if (!outerClassName.isNull()) {
        out.append("Declaring Class: " + J9UTF8Helper.stringValue(romClass.outerClassName()));
        out.append(nl);
        out.append(String.format("Member Access Flags (0x%s): ", Long.toHexString(romClass.memberAccessFlags().longValue())));
        dumpModifiers(out, romClass.memberAccessFlags().longValue(), MODIFIERSOURCE_CLASS, ONLY_SPEC_MODIFIERS);
        out.append(nl);
        outerClassName = outerClassName.add(1);
    }
    long innerClassCount = romClass.innerClassCount().longValue();
    if (innerClassCount != 0) {
        SelfRelativePointer innerClasses = romClass.innerClasses();
        out.append(String.format("Declared Classes (%d):" + nl, innerClassCount));
        for (int i = 0; i < innerClassCount; i++) {
            J9UTF8Pointer innerClassName = J9UTF8Pointer.cast(innerClasses.get());
            out.append("   " + J9UTF8Helper.stringValue(innerClassName));
            innerClasses = innerClasses.add(1);
        }
    }
    U32 romFieldCount = romClass.romFieldCount();
    out.append(String.format("Fields (%d):" + nl, romFieldCount.longValue()));
    J9ROMFieldShapeIterator iterator = new J9ROMFieldShapeIterator(romClass.romFields(), romFieldCount);
    while (iterator.hasNext()) {
        J9ROMFieldShapePointer currentField = (J9ROMFieldShapePointer) iterator.next();
        if (!currentField.modifiers().bitAnd(J9JavaAccessFlags.J9AccStatic).eq(0)) {
            dumpRomStaticField(out, currentField, flags);
        } else {
            dumpRomField(out, currentField, flags);
        }
        out.append(nl);
    }
    dumpCPShapeDescription(out, romClass, flags);
    long romMethodsCount = romClass.romMethodCount().longValue();
    out.append(String.format("Methods (%d):" + nl, romMethodsCount));
    J9ROMMethodPointer romMethod = romClass.romMethods();
    for (int i = 0; i < romClass.romMethodCount().intValue(); i++) {
        J9BCUtil.j9bcutil_dumpRomMethod(out, romMethod, romClass, flags, 0);
        romMethod = ROMHelp.nextROMMethod(romMethod);
    }
    /* dump source debug extension */
    dumpSourceDebugExtension(out, romClass, flags);
    /* dump annotation info */
    dumpAnnotationInfo(out, romClass, flags);
    /* dump callsite data */
    dumpCallSiteData(out, romClass);
    /* dump split side tables */
    dumpStaticSplitSideTable(out, romClass);
    dumpSpecialSplitSideTable(out, romClass);
}

Example 2 with J9ROMFieldShapeIterator

use of com.ibm.j9ddr.vm29.j9.J9ROMFieldShapeIterator in project openj9 by eclipse.

the class J9BCUtil method dumpAnnotationInfo.

private static void dumpAnnotationInfo(PrintStream out, J9ROMClassPointer romClass, long flags) throws CorruptDataException {
    U32Pointer classAnnotationData = OptInfo.getClassAnnotationsDataForROMClass(romClass);
    U32Pointer classTypeAnnotationData = OptInfo.getClassTypeAnnotationsDataForROMClass(romClass);
    out.append("  Annotation Info:" + nl);
    if (!classAnnotationData.isNull()) {
        U32 length = classAnnotationData.at(0);
        U32Pointer data = classAnnotationData.add(1);
        out.append(String.format("    Class Annotations (%d bytes): %s" + nl, length.intValue(), data.getHexAddress()));
    }
    if (!classTypeAnnotationData.isNull()) {
        U32 length = classTypeAnnotationData.at(0);
        U32Pointer data = classTypeAnnotationData.add(1);
        out.append(String.format("    Class Type Annotations (%d bytes): %s" + nl, length.intValue(), data.getHexAddress()));
    }
    /* print field annotations */
    J9ROMFieldShapeIterator iterator = new J9ROMFieldShapeIterator(romClass.romFields(), romClass.romFieldCount());
    out.append("    Field Annotations:" + nl);
    while (iterator.hasNext()) {
        J9ROMFieldShapePointer currentField = (J9ROMFieldShapePointer) iterator.next();
        U32Pointer fieldAnnotationData = J9ROMFieldShapeHelper.getFieldAnnotationsDataFromROMField(currentField);
        U32Pointer fieldTypeAnnotationData = J9ROMFieldShapeHelper.getFieldTypeAnnotationsDataFromROMField(currentField);
        if (!fieldAnnotationData.isNull()) {
            U32 length = fieldAnnotationData.at(0);
            U32Pointer data = fieldAnnotationData.add(1);
            out.append("     Name: " + J9UTF8Helper.stringValue(currentField.nameAndSignature().name()) + nl);
            out.append("     Signature: " + J9UTF8Helper.stringValue(currentField.nameAndSignature().signature()) + nl);
            out.append(String.format("      Annotations (%d bytes): %s" + nl, length.intValue(), data.getHexAddress()));
        }
        if (!fieldTypeAnnotationData.isNull()) {
            U32 length = fieldTypeAnnotationData.at(0);
            U32Pointer data = fieldTypeAnnotationData.add(1);
            out.append(String.format("      Type Annotations (%d bytes): %s" + nl, length.intValue(), data.getHexAddress()));
        }
    }
    out.append(nl);
    /* print method, parameter and default annotations */
    J9ROMMethodPointer romMethod = romClass.romMethods();
    out.append("    Method Annotations:" + nl);
    for (int i = 0; i < romClass.romMethodCount().intValue(); i++) {
        dumpMethodAnnotations(out, romMethod);
        romMethod = ROMHelp.nextROMMethod(romMethod);
    }
    out.append(nl);
}

Example 3 with J9ROMFieldShapeIterator

use of com.ibm.j9ddr.vm29.j9.J9ROMFieldShapeIterator in project openj9 by eclipse.

the class ObjectFieldInfo method countInstanceFields.

void countInstanceFields() throws CorruptDataException {
    /* iterate over fields to count instance fields by size */
    Iterable<J9ROMFieldShapePointer> fields = new J9ROMFieldShapeIterator(romClass.romFields(), romClass.romFieldCount());
    for (J9ROMFieldShapePointer f : fields) {
        U32 modifiers = f.modifiers();
        if (!modifiers.anyBitsIn(J9AccStatic)) {
            if (modifiers.anyBitsIn(J9FieldFlagObject)) {
                instanceObjectCount += 1;
                totalObjectCount += 1;
            } else if (modifiers.anyBitsIn(J9FieldSizeDouble)) {
                instanceDoubleCount += 1;
                totalDoubleCount += 1;
            } else {
                instanceSingleCount += 1;
                totalSingleCount += 1;
            }
        }
    }
    instanceFieldBackfillEligible = (instanceSingleCount > 0) || (objectCanUseBackfill && (instanceSingleCount > 0));
}

Example 4 with J9ROMFieldShapeIterator

use of com.ibm.j9ddr.vm29.j9.J9ROMFieldShapeIterator in project openj9 by eclipse.

the class RomClassWalker method allSlotsInROMFieldsSectionDo.

private void allSlotsInROMFieldsSectionDo() throws CorruptDataException {
    J9ROMFieldShapeIterator iterator = new J9ROMFieldShapeIterator(romClass.romFields(), romClass.romFieldCount());
    int size = 0;
    while (iterator.hasNext()) {
        J9ROMFieldShapePointer currentField = (J9ROMFieldShapePointer) iterator.next();
        int fieldLength = allSlotsInROMFieldDo(currentField);
        if (0 == fieldLength) {
            /* Range validation failed on the field, break early. */
            break;
        }
        size += fieldLength;
    }
    classWalkerCallback.addSection(clazz, romClass.romFields(), size, "fields", true);
}