public void iterateFields(OopVisitor visitor, boolean doVMFields) {
super.iterateFields(visitor, doVMFields);
if (doVMFields) {
visitor.doOop(constants, true);
for (int i = 0; i < getLength(); i++) {
ConstantPoolCacheEntry entry = getEntryAt(i);
entry.iterateFields(visitor);
}
}
}
public long getObjectSize() {
ArrayKlass klass = (ArrayKlass) getKlass();
// We have to fetch the length of the array, shift (multiply) it
// appropriately, up to wordSize, add the header, and align to
// object size.
long s = getLength() << klass.getLog2ElementSize();
s += klass.getArrayHeaderInBytes();
s = Oop.alignObjectSize(s);
return s;
}
public void iterateFields(OopVisitor visitor, boolean doVMFields) {
super.iterateFields(visitor, doVMFields);
if (doVMFields) {
visitor.doOop(constMethod, true);
visitor.doOop(constants, true);
visitor.doCInt(methodSize, true);
visitor.doCInt(maxStack, true);
visitor.doCInt(maxLocals, true);
visitor.doCInt(sizeOfParameters, true);
visitor.doCInt(accessFlags, true);
}
}
private static synchronized void initialize(TypeDataBase db) throws WrongTypeException {
Type type = db.lookupType("arrayKlass");
dimension = new CIntField(type.getCIntegerField("_dimension"), Oop.getHeaderSize());
higherDimension = new OopField(type.getOopField("_higher_dimension"), Oop.getHeaderSize());
lowerDimension = new OopField(type.getOopField("_lower_dimension"), Oop.getHeaderSize());
vtableLen = new CIntField(type.getCIntegerField("_vtable_len"), Oop.getHeaderSize());
allocSize = new CIntField(type.getCIntegerField("_alloc_size"), Oop.getHeaderSize());
componentMirror = new OopField(type.getOopField("_component_mirror"), Oop.getHeaderSize());
javaLangCloneableName = null;
javaLangObjectName = null;
javaIoSerializableName = null;
}
public void iterateFields(OopVisitor visitor, boolean doVMFields) {
super.iterateFields(visitor, doVMFields);
}
public void iterateFields(OopVisitor visitor, boolean doVMFields) {
super.iterateFields(visitor, doVMFields);
if (doVMFields) {
visitor.doOop(tags, true);
visitor.doOop(cache, true);
visitor.doOop(poolHolder, true);
final int length = (int) getLength();
// zero'th pool entry is always invalid. ignore it.
for (int index = 1; index < length; index++) {
int ctag = (int) getTags().getByteAt((int) index);
switch (ctag) {
case JVM_CONSTANT_ClassIndex:
case JVM_CONSTANT_StringIndex:
case JVM_CONSTANT_Integer:
visitor.doInt(
new IntField(new NamedFieldIdentifier(nameForTag(ctag)), indexOffset(index), true),
true);
break;
case JVM_CONSTANT_Float:
visitor.doFloat(
new FloatField(
new NamedFieldIdentifier(nameForTag(ctag)), indexOffset(index), true),
true);
break;
case JVM_CONSTANT_Long:
visitor.doLong(
new LongField(new NamedFieldIdentifier(nameForTag(ctag)), indexOffset(index), true),
true);
// long entries occupy two slots
index++;
break;
case JVM_CONSTANT_Double:
visitor.doDouble(
new DoubleField(
new NamedFieldIdentifier(nameForTag(ctag)), indexOffset(index), true),
true);
// double entries occupy two slots
index++;
break;
case JVM_CONSTANT_UnresolvedClass:
case JVM_CONSTANT_Class:
case JVM_CONSTANT_UnresolvedString:
case JVM_CONSTANT_Utf8:
visitor.doOop(
new OopField(new NamedFieldIdentifier(nameForTag(ctag)), indexOffset(index), true),
true);
break;
case JVM_CONSTANT_Fieldref:
case JVM_CONSTANT_Methodref:
case JVM_CONSTANT_InterfaceMethodref:
case JVM_CONSTANT_NameAndType:
visitor.doInt(
new IntField(new NamedFieldIdentifier(nameForTag(ctag)), indexOffset(index), true),
true);
break;
}
}
}
/*
int length = getLength();
for (int index = 0; index < length; index++) {
long offset = baseOffset + (index + typeDataBase.getOopSize());
visitor.doOop(new IndexableField(index, offset, false), getObjAt(index));
}
*/
}
private void markAndTraverse(final Oop obj) {
// End of path
if (obj == null) {
return;
}
// Visited object
if (!markBits.mark(obj)) {
return;
}
// Root of work list for objects to be visited. A simple
// stack for saving new objects to be analyzed.
final Stack workList = new Stack();
// Next object to be visited.
Oop next = obj;
try {
// Node in the list currently being visited.
while (true) {
final Oop currObj = next;
// For the progress meter
if (progressThunk != null) {
visitedSize += currObj.getObjectSize();
double curFrac = (double) visitedSize / (double) usedSize;
if (curFrac > lastNotificationFraction + MINIMUM_NOTIFICATION_FRACTION) {
progressThunk.heapIterationFractionUpdate(curFrac);
lastNotificationFraction = curFrac;
}
}
if (DEBUG) {
++depth;
printHeader();
System.err.println("ReversePtrs.markAndTraverse(" + currObj.getHandle() + ")");
}
// Iterate over the references in the object. Do the
// reverse pointer analysis for each reference.
// Add the reference to the work-list so that its
// references will be visited.
currObj.iterate(
new DefaultOopVisitor() {
public void doOop(OopField field, boolean isVMField) {
// "field" refers to a reference in currObj
Oop next = field.getValue(currObj);
rp.put(new LivenessPathElement(currObj, field.getID()), next);
if ((next != null) && markBits.mark(next)) {
workList.push(next);
}
}
},
false);
if (DEBUG) {
--depth;
}
// Get the next object to visit.
next = (Oop) workList.pop();
}
} catch (EmptyStackException e) {
// Done
} catch (NullPointerException e) {
System.err.println("ReversePtrs: WARNING: " + e + " during traversal");
} catch (Exception e) {
System.err.println("ReversePtrs: WARNING: " + e + " during traversal");
}
}
/** Breakpoint support (see methods on methodOop for details) */
public BreakpointInfo getBreakpoints() {
Address addr = getHandle().getAddressAt(Oop.getHeaderSize() + breakpoints.getOffset());
return (BreakpointInfo) VMObjectFactory.newObject(BreakpointInfo.class, addr);
}
private static synchronized void initialize(TypeDataBase db) throws WrongTypeException {
Type type = db.lookupType("instanceKlass");
arrayKlasses = new OopField(type.getOopField("_array_klasses"), Oop.getHeaderSize());
methods = new OopField(type.getOopField("_methods"), Oop.getHeaderSize());
methodOrdering = new OopField(type.getOopField("_method_ordering"), Oop.getHeaderSize());
localInterfaces = new OopField(type.getOopField("_local_interfaces"), Oop.getHeaderSize());
transitiveInterfaces =
new OopField(type.getOopField("_transitive_interfaces"), Oop.getHeaderSize());
nofImplementors =
new CIntField(type.getCIntegerField("_nof_implementors"), Oop.getHeaderSize());
IMPLEMENTORS_LIMIT = db.lookupIntConstant("instanceKlass::implementors_limit").intValue();
implementors = new OopField[IMPLEMENTORS_LIMIT];
for (int i = 0; i < IMPLEMENTORS_LIMIT; i++) {
long arrayOffset = Oop.getHeaderSize() + (i * db.getAddressSize());
implementors[i] = new OopField(type.getOopField("_implementors[0]"), arrayOffset);
}
fields = new OopField(type.getOopField("_fields"), Oop.getHeaderSize());
constants = new OopField(type.getOopField("_constants"), Oop.getHeaderSize());
classLoader = new OopField(type.getOopField("_class_loader"), Oop.getHeaderSize());
protectionDomain = new OopField(type.getOopField("_protection_domain"), Oop.getHeaderSize());
signers = new OopField(type.getOopField("_signers"), Oop.getHeaderSize());
sourceFileName = new OopField(type.getOopField("_source_file_name"), Oop.getHeaderSize());
sourceDebugExtension =
new OopField(type.getOopField("_source_debug_extension"), Oop.getHeaderSize());
innerClasses = new OopField(type.getOopField("_inner_classes"), Oop.getHeaderSize());
nonstaticFieldSize =
new CIntField(type.getCIntegerField("_nonstatic_field_size"), Oop.getHeaderSize());
staticFieldSize =
new CIntField(type.getCIntegerField("_static_field_size"), Oop.getHeaderSize());
staticOopFieldSize =
new CIntField(type.getCIntegerField("_static_oop_field_size"), Oop.getHeaderSize());
nonstaticOopMapSize =
new CIntField(type.getCIntegerField("_nonstatic_oop_map_size"), Oop.getHeaderSize());
isMarkedDependent =
new CIntField(type.getCIntegerField("_is_marked_dependent"), Oop.getHeaderSize());
initState = new CIntField(type.getCIntegerField("_init_state"), Oop.getHeaderSize());
vtableLen = new CIntField(type.getCIntegerField("_vtable_len"), Oop.getHeaderSize());
itableLen = new CIntField(type.getCIntegerField("_itable_len"), Oop.getHeaderSize());
breakpoints = type.getAddressField("_breakpoints");
genericSignature = new OopField(type.getOopField("_generic_signature"), Oop.getHeaderSize());
majorVersion = new CIntField(type.getCIntegerField("_major_version"), Oop.getHeaderSize());
minorVersion = new CIntField(type.getCIntegerField("_minor_version"), Oop.getHeaderSize());
headerSize = alignObjectOffset(Oop.getHeaderSize() + type.getSize());
// read field offset constants
ACCESS_FLAGS_OFFSET = db.lookupIntConstant("instanceKlass::access_flags_offset").intValue();
NAME_INDEX_OFFSET = db.lookupIntConstant("instanceKlass::name_index_offset").intValue();
SIGNATURE_INDEX_OFFSET =
db.lookupIntConstant("instanceKlass::signature_index_offset").intValue();
INITVAL_INDEX_OFFSET = db.lookupIntConstant("instanceKlass::initval_index_offset").intValue();
LOW_OFFSET = db.lookupIntConstant("instanceKlass::low_offset").intValue();
HIGH_OFFSET = db.lookupIntConstant("instanceKlass::high_offset").intValue();
GENERIC_SIGNATURE_INDEX_OFFSET =
db.lookupIntConstant("instanceKlass::generic_signature_offset").intValue();
NEXT_OFFSET = db.lookupIntConstant("instanceKlass::next_offset").intValue();
// read ClassState constants
CLASS_STATE_UNPARSABLE_BY_GC =
db.lookupIntConstant("instanceKlass::unparsable_by_gc").intValue();
CLASS_STATE_ALLOCATED = db.lookupIntConstant("instanceKlass::allocated").intValue();
CLASS_STATE_LOADED = db.lookupIntConstant("instanceKlass::loaded").intValue();
CLASS_STATE_LINKED = db.lookupIntConstant("instanceKlass::linked").intValue();
CLASS_STATE_BEING_INITIALIZED =
db.lookupIntConstant("instanceKlass::being_initialized").intValue();
CLASS_STATE_FULLY_INITIALIZED =
db.lookupIntConstant("instanceKlass::fully_initialized").intValue();
CLASS_STATE_INITIALIZATION_ERROR =
db.lookupIntConstant("instanceKlass::initialization_error").intValue();
}
private static synchronized void initialize(TypeDataBase db) throws WrongTypeException {
Type t = db.lookupType("typeArrayKlass");
maxLength = new CIntField(t.getCIntegerField("_max_length"), Oop.getHeaderSize());
}
public double getValue(Oop obj) {
return obj.getHandle().getJDoubleAt(getOffset());
}
private static synchronized void initialize(TypeDataBase db) throws WrongTypeException {
Type type = db.lookupType("objArrayKlass");
elementKlass = new OopField(type.getOopField("_element_klass"), Oop.getHeaderSize());
bottomKlass = new OopField(type.getOopField("_bottom_klass"), Oop.getHeaderSize());
}