Examples with U32 com.ibm.j9ddr.vm29.types.U32 used on opensource projects

Example 26 with U32

use of com.ibm.j9ddr.vm29.types.U32 in project openj9 by eclipse.

the class J9ObjectStructureFormatter method printSubArrayType.

void printSubArrayType(PrintStream out, int tabLevel, J9ClassPointer localClazz, U8Pointer dataStart, int begin, int end, J9IndexableObjectPointer array) throws CorruptDataException {
    U32 arraySize = J9IndexableObjectHelper.size(array);
    if (arraySize.anyBitsIn(0x80000000)) {
        arraySize = new U32(Integer.MAX_VALUE);
    }
    int finish = Math.min(arraySize.intValue(), end);
    if (begin < finish) {
        String className = J9IndexableObjectHelper.getClassName(array);
        char signature = className.charAt(1);
        switch(signature) {
            case 'B':
            case 'Z':
                for (int index = begin; index < finish; index++) {
                    padding(out, tabLevel);
                    VoidPointer slot = J9IndexableObjectHelper.getElementEA(array, index, 1);
                    out.println(String.format("[%d] = %3d, 0x%02x", index, U8Pointer.cast(slot).at(0).longValue(), U8Pointer.cast(slot).at(0).longValue()));
                }
                break;
            case 'C':
                for (int index = begin; index < finish; index++) {
                    padding(out, tabLevel);
                    VoidPointer slot = J9IndexableObjectHelper.getElementEA(array, index, 2);
                    long value = U16Pointer.cast(slot).at(0).longValue();
                    out.println(String.format("[%d] = %5d, 0x%2$04x, '%c'", index, value, (char) value));
                }
                break;
            case 'S':
                for (int index = begin; index < finish; index++) {
                    padding(out, tabLevel);
                    VoidPointer slot = J9IndexableObjectHelper.getElementEA(array, index, 2);
                    out.println(String.format("[%d] = %6d, 0x%04x", index, I16Pointer.cast(slot).at(0).longValue(), U16Pointer.cast(slot).at(0).longValue()));
                }
                break;
            case 'I':
            case 'F':
                for (int index = begin; index < finish; index++) {
                    padding(out, tabLevel);
                    VoidPointer slot = J9IndexableObjectHelper.getElementEA(array, index, 4);
                    out.println(String.format("[%d] = %10d, 0x%08x, %8.8fF", index, I32Pointer.cast(slot).at(0).longValue(), U32Pointer.cast(slot).at(0).longValue(), FloatPointer.cast(slot).floatAt(0)));
                }
                break;
            case 'J':
            case 'D':
                for (int index = begin; index < finish; index++) {
                    padding(out, tabLevel);
                    VoidPointer slot = J9IndexableObjectHelper.getElementEA(array, index, 8);
                    out.println(String.format("[%d] = %2d, 0x%016x, %8.8fF", index, I64Pointer.cast(slot).at(0).longValue(), I64Pointer.cast(slot).at(0).longValue(), DoublePointer.cast(slot).doubleAt(0)));
                }
                break;
            case 'L':
            case '[':
                for (int index = begin; index < finish; index++) {
                    VoidPointer slot = J9IndexableObjectHelper.getElementEA(array, index, (int) ObjectReferencePointer.SIZEOF);
                    if (slot.notNull()) {
                        long compressedPtrValue;
                        if (J9BuildFlags.gc_compressedPointers) {
                            compressedPtrValue = I32Pointer.cast(slot).at(0).longValue();
                        } else {
                            compressedPtrValue = DataType.getProcess().getPointerAt(slot.getAddress());
                        }
                        padding(out, tabLevel);
                        out.println(String.format("[%d] = !fj9object 0x%x = !j9object 0x%x", index, compressedPtrValue, ObjectReferencePointer.cast(slot).at(0).longValue()));
                    } else {
                        padding(out, tabLevel);
                        out.println(String.format("[%d] = null", slot));
                    }
                }
                break;
        }
    }
    /* check if it just printed a range; if so, give cmd to see all data */
    arraySize = J9IndexableObjectHelper.size(array);
    if (begin > 0 || arraySize.longValue() > finish) {
        out.println(String.format("To print entire range: !j9indexableobject %s %d %d\n", array.getHexAddress(), 0, arraySize.longValue()));
    }
}

Example 27 with U32

use of com.ibm.j9ddr.vm29.types.U32 in project openj9 by eclipse.

the class J9ObjectStructureFormatter method formatArrayObject.

private void formatArrayObject(PrintStream out, J9ClassPointer localClazz, U8Pointer dataStart, J9IndexableObjectPointer localObject, int begin, int end) throws CorruptDataException {
    String className = J9IndexableObjectHelper.getClassName(localObject);
    out.print(String.format("!J9IndexableObject %s {", localObject.getHexAddress()));
    out.println();
    /* print individual fields */
    out.println(String.format("    struct J9Class* clazz = !j9arrayclass 0x%X   // %s", localClazz.getAddress(), className));
    out.println(String.format("    Object flags = %s;", J9IndexableObjectHelper.flags(localObject).getHexValue()));
    U32 size = J9IndexableObjectHelper.size(localObject);
    if (!J9BuildFlags.thr_lockNursery) {
        out.println(String.format("    j9objectmonitor_t monitor = %s;", J9IndexableObjectHelper.monitor(localObject).getHexValue()));
    }
    if (size.anyBitsIn(0x80000000)) {
        out.println(String.format("    U_32 size = %s; // Size exceeds Integer.MAX_VALUE!", size.getHexValue()));
    } else {
        out.println(String.format("    U_32 size = %s;", size.getHexValue()));
    }
    printSubArrayType(out, 1, localClazz, dataStart, begin, end, localObject);
    out.println("}");
}

Example 28 with U32

use of com.ibm.j9ddr.vm29.types.U32 in project openj9 by eclipse.

the class J9ObjectFieldOffsetIterator_V1 method fieldOffsetsFindNext.

// Based on fieldOffsetsFindNext from resolvefield.c
private void fieldOffsetsFindNext() throws CorruptDataException {
    while (romFieldsShapeIterator.hasNext()) {
        J9ROMFieldShapePointer localField = (J9ROMFieldShapePointer) romFieldsShapeIterator.next();
        U32 modifiers = localField.modifiers();
        /* count the index for jvmti */
        index = index.add(1);
        if (modifiers.anyBitsIn(J9AccStatic)) {
            if (walkFlags.anyBitsIn(J9VM_FIELD_OFFSET_WALK_INCLUDE_STATIC)) {
                /* found a static, the walk wants statics */
                if (modifiers.anyBitsIn(J9FieldFlagObject)) {
                    offset = new UDATA(objectStaticsSeen.mult(UDATA.SIZEOF));
                    objectStaticsSeen = objectStaticsSeen.add(1);
                    field = localField;
                    break;
                } else if (!(walkFlags.anyBitsIn(J9VM_FIELD_OFFSET_WALK_ONLY_OBJECT_SLOTS))) {
                    if (modifiers.anyBitsIn(J9FieldSizeDouble)) {
                        /* Add single scalar and object counts together, round up to 2 and divide by 2 to get number of doubles used by singles */
                        UDATA doubleSlots;
                        if (J9BuildFlags.env_data64) {
                            doubleSlots = new UDATA(romClass.objectStaticCount().add(romClass.singleScalarStaticCount()));
                        } else {
                            doubleSlots = new UDATA(romClass.objectStaticCount().add(romClass.singleScalarStaticCount()).add(1)).rightShift(1);
                        }
                        offset = doubleSlots.mult(U64.SIZEOF).add(doubleStaticsSeen.mult(U64.SIZEOF));
                        doubleStaticsSeen = doubleStaticsSeen.add(1);
                    } else {
                        offset = new UDATA(romClass.objectStaticCount().mult(UDATA.SIZEOF).add(singleStaticsSeen.mult(UDATA.SIZEOF)));
                        singleStaticsSeen = singleStaticsSeen.add(1);
                    }
                    field = localField;
                    break;
                }
            }
        } else {
            if (walkFlags.anyBitsIn(J9VM_FIELD_OFFSET_WALK_INCLUDE_INSTANCE)) {
                if (modifiers.anyBitsIn(J9FieldFlagObject)) {
                    if (walkFlags.anyBitsIn(J9VM_FIELD_OFFSET_WALK_BACKFILL_OBJECT_FIELD)) {
                        // Assert_VM_true(state->backfillOffsetToUse >= 0);
                        offset = new UDATA(backfillOffsetToUse);
                        walkFlags = walkFlags.bitAnd(new U32(new UDATA(J9VM_FIELD_OFFSET_WALK_BACKFILL_OBJECT_FIELD).bitNot()));
                    } else {
                        offset = firstObjectOffset.add(objectsSeen.mult(fj9object_t_SizeOf));
                        objectsSeen = objectsSeen.add(1);
                    }
                    field = localField;
                    break;
                } else if (!walkFlags.anyBitsIn(J9VM_FIELD_OFFSET_WALK_ONLY_OBJECT_SLOTS)) {
                    if (modifiers.anyBitsIn(J9FieldSizeDouble)) {
                        offset = firstDoubleOffset.add(doubleSeen.mult(U64.SIZEOF));
                        doubleSeen = doubleSeen.add(1);
                    } else {
                        if (walkFlags.anyBitsIn(J9VM_FIELD_OFFSET_WALK_BACKFILL_SINGLE_FIELD)) {
                            // Assert_VM_true(state->backfillOffsetToUse >= 0);
                            offset = new UDATA(backfillOffsetToUse);
                            walkFlags = walkFlags.bitAnd(new U32(new UDATA(J9VM_FIELD_OFFSET_WALK_BACKFILL_SINGLE_FIELD).bitNot()));
                        } else {
                            offset = firstSingleOffset.add(singlesSeen.mult(U32.SIZEOF));
                            singlesSeen = singlesSeen.add(1);
                        }
                    }
                    field = localField;
                    break;
                }
            }
        }
    }
    // At this point all the info we need is stashed away in private state variables
    return;
}

Example 29 with U32

use of com.ibm.j9ddr.vm29.types.U32 in project openj9 by eclipse.

the class ConstantPoolHelpers method J9_CP_TYPE.

/**
 * This method is Java implementation of the define J9_CP_TYPE in j9cp.h in VM.
 * It basically find out the type of the constant pool entry at the given index.
 *
 * #define J9_CP_TYPE(cpShapeDescription, index) \
 *	(((cpShapeDescription)[(index) / J9_CP_DESCRIPTIONS_PER_U32] >> \
 *	(((index) % J9_CP_DESCRIPTIONS_PER_U32) * J9_CP_BITS_PER_DESCRIPTION)) & J9_CP_DESCRIPTION_MASK)
 *
 * @param cpShapeDescription Description of the constantPool
 * @param index Type index
 * @return Type
 * @throws CorruptDataException
 */
public static long J9_CP_TYPE(U32Pointer cpShapeDescription, int index) throws CorruptDataException {
    U32 cpDescription = cpShapeDescription.at(index / J9_CP_DESCRIPTIONS_PER_U32);
    long shapeDesc = cpDescription.rightShift((int) ((index % J9_CP_DESCRIPTIONS_PER_U32) * J9_CP_BITS_PER_DESCRIPTION)).bitAnd(J9_CP_DESCRIPTION_MASK).longValue();
    return shapeDesc;
}

Example 30 with U32

use of com.ibm.j9ddr.vm29.types.U32 in project openj9 by eclipse.

the class ObjectHash method getSalt.

private static U32 getSalt(J9JavaVMPointer vm, UDATA objectPointer) throws CorruptDataException {
    /* set up the default salt */
    U32 salt = (new U32(1421595292)).bitXor(new U32(UDATA.cast(vm)));
    J9IdentityHashDataPointer hashData = vm.identityHashData();
    UDATA saltPolicy = hashData.hashSaltPolicy();
    /* Replacing case statement in C with an if-else if statements since case expressions must use constant */
    if (saltPolicy.eq(J9IdentityHashData.J9_IDENTITY_HASH_SALT_POLICY_STANDARD)) {
        /* Gencon/optavgpause/optthruput use the default salt for non heap and
			 * tenure space but they use a table salt for the nursery.
			 *
			 * hashData->hashData1 is nursery base
			 * hashData->hashData2 is nursery top
			 */
        if (objectPointer.gte(hashData.hashData1())) {
            if (objectPointer.lt(hashData.hashData2())) {
                /* Object is in the nursery */
                salt = hashData.hashSaltTableEA().at(0);
            } else {
            /* not in the heap so use default salt */
            }
        } else {
        /* not in the nursery so use default salt */
        }
    } else if (saltPolicy.eq(J9IdentityHashData.J9_IDENTITY_HASH_SALT_POLICY_REGION)) {
        if (objectPointer.gte(hashData.hashData1())) {
            if (objectPointer.lt(hashData.hashData2())) {
                UDATA heapDelta = objectPointer.sub(hashData.hashData1());
                UDATA index = heapDelta.rightShift(hashData.hashData3());
                salt = hashData.hashSaltTableEA().at(index);
            } else {
            /* not in the heap so use default salt */
            }
        } else {
        /* not in the heap so use default salt */
        }
    } else if (saltPolicy.eq(J9IdentityHashData.J9_IDENTITY_HASH_SALT_POLICY_NONE)) {
    /* Use default salt */
    } else {
        /* Unrecognized salt policy.  Should assert but we are in util */
        throw new CorruptDataException("Invalid salt policy");
    }
    return salt;
}