use of com.ibm.j9ddr.vm29.tools.ddrinteractive.LinearDumper.J9ClassRegionNode in project openj9 by eclipse.
the class LinearDumper method getAllRegions.
/**
* Returns a tree of regions and slots. Each slot is under a region. The
* root element is always null.
* @param classWalker
*
* @return J9ClassRegionNode tree of J9ClassRegion
* @throws CorruptDataException
*/
public J9ClassRegionNode getAllRegions(ClassWalker classWalker) throws CorruptDataException {
classWalker.allSlotsInObjectDo(this);
final StructurePointer clazz = classWalker.getClazz();
/* Add the UTF8 region */
if (firstJ9_ROM_UTF8 != Long.MAX_VALUE) {
addSection(clazz, PointerPointer.cast(firstJ9_ROM_UTF8), lastJ9_ROM_UTF8 - firstJ9_ROM_UTF8, "UTF8", true);
}
groupSectionByName(clazz, "methodDebugInfo", false);
groupSectionByName(clazz, "variableInfo", false);
/*
* the offset is a pointer which points at the end of the current
* region, in the case of a region which have no real size, it points at
* the beginning of the region
*/
AbstractPointer offset = PointerPointer.NULL;
J9ClassRegionNode currentNode = new J9ClassRegionNode(null);
Stack<J9ClassRegionNode> parentStack = new Stack<J9ClassRegionNode>();
J9ClassRegion previousRegion = null;
Collections.sort(classRegions);
for (J9ClassRegion region : classRegions) {
if (isSameRegion(previousRegion, region)) {
previousRegion = region;
continue;
}
previousRegion = region;
if (SlotType.J9_SECTION_START == region.getType()) {
if (region.getComputePadding() && offset.notNull() && !offset.eq(region.getSlotPtr())) {
currentNode.addChild(new J9ClassRegionNode(new J9ClassRegion(offset, SlotType.J9_Padding, "Padding", "", region.getSlotPtr().getAddress() - offset.getAddress(), 0, true)));
}
if (region.getComputePadding()) {
offset = region.getSlotPtr();
}
parentStack.push(currentNode);
J9ClassRegionNode newChild = new J9ClassRegionNode(region);
currentNode.addChild(newChild);
currentNode = newChild;
} else if (SlotType.J9_SECTION_END == region.getType()) {
if (region.getComputePadding()) {
long paddingSize = (region.getSlotPtr().getAddress() - offset.getAddress());
if (paddingSize != 0) {
currentNode.addChild(new J9ClassRegionNode(new J9ClassRegion(offset, SlotType.J9_Padding, "Padding", "", paddingSize, 0, true)));
}
offset = region.getSlotPtr();
}
currentNode = parentStack.pop();
} else {
boolean computePadding = false;
if (currentNode.getNodeValue() != null) {
computePadding = currentNode.getNodeValue().getComputePadding();
}
if (computePadding && offset.notNull() && !offset.eq(region.getSlotPtr())) {
currentNode.addChild(new J9ClassRegionNode(new J9ClassRegion(offset, SlotType.J9_Padding, "Padding", "", region.getSlotPtr().getAddress() - offset.getAddress(), 0, true)));
}
if (computePadding) {
offset = region.getSlotPtr().addOffset(region.length);
}
currentNode.addChild(new J9ClassRegionNode(region));
}
}
// Padding after the class and inside the romSize.
if (clazz instanceof J9ROMClassPointer) {
long size = J9ROMClassPointer.cast(clazz).romSize().longValue();
long paddingSize = (clazz.longValue() + size) - offset.longValue();
if (paddingSize != 0) {
currentNode.addChild(new J9ClassRegionNode(new J9ClassRegion(offset, SlotType.J9_Padding, "Padding", "", paddingSize, 0, true)));
// The class padding might be inserted out of order
Collections.sort(currentNode.getChildren());
}
}
return currentNode;
}
use of com.ibm.j9ddr.vm29.tools.ddrinteractive.LinearDumper.J9ClassRegionNode in project openj9 by eclipse.
the class RomClassSummaryCommand method run.
public void run(String command, String[] args, Context context, PrintStream out) throws DDRInteractiveCommandException {
try {
boolean requiredLocal = false;
boolean requiredShared = false;
boolean required16bitnas = false;
J9SharedClassConfigPointer sc = J9SharedClassConfigPointer.NULL;
J9JavaVMPointer vm = J9RASHelper.getVM(DataType.getJ9RASPointer());
long startAddress = 0, endAddress = 0;
if ((args != null) && (args.length >= 1)) {
if (args[0].equals("shared")) {
requiredShared = true;
} else if (args[0].equals("local")) {
requiredLocal = true;
} else if (args[0].equals("16bitnas")) {
required16bitnas = true;
} else {
out.println("USAGE: !romclasssummary [local|shared] [16bitnas]");
return;
}
if ((args.length >= 2) && (args[1].equals("16bitnas"))) {
required16bitnas = true;
}
if (requiredShared || requiredLocal) {
sc = vm.sharedClassConfig();
if (requiredShared && sc.isNull()) {
out.println("The request for '" + args[0] + " classes' failed, because " + "shared classes were not enabled on that dump file.");
return;
}
if (sc.notNull()) {
startAddress = UDATA.cast(sc.cacheDescriptorList().romclassStartAddress()).longValue();
J9SharedCacheHeaderPointer header = sc.cacheDescriptorList().cacheStartAddress();
endAddress = UDATA.cast(header).add(header.segmentSRP()).longValue();
}
}
}
ClassSummaryHelper classSummaryHelper = new ClassSummaryHelper(preferredOrder);
Statistics statistics = new Statistics();
ROMClassesIterator classSegmentIterator = new ROMClassesIterator(out, vm.classMemorySegments());
while (classSegmentIterator.hasNext()) {
J9ROMClassPointer classPointer = (J9ROMClassPointer) classSegmentIterator.next();
if (requiredShared || requiredLocal) {
boolean isShared;
if (sc.notNull()) {
long classAddress = classPointer.getAddress();
isShared = classAddress >= startAddress && classAddress < endAddress;
} else {
isShared = false;
}
if (requiredShared && !isShared)
continue;
if (requiredLocal && isShared)
continue;
}
ClassWalker classWalker = new RomClassWalker(classPointer, context);
LinearDumper linearDumper = new LinearDumper();
J9ClassRegionNode allRegionsNode = linearDumper.getAllRegions(classWalker);
classSummaryHelper.addRegionsForClass(allRegionsNode);
if (required16bitnas) {
statistics.add(allRegionsNode);
}
}
classSummaryHelper.printStatistics(out);
if (statistics.nameAndSignatureSRP16bitSize != -1) {
out.println();
out.println("<Total 16bit nameAndSignatureSRPs Size>");
out.println(statistics.nameAndSignatureSRP16bitSize);
}
if (statistics.nameAndSignatureSRPCount != -1 && statistics.cpFieldNASCount != -1) {
out.println();
out.println("<Shared nameAndSignatureSRPs>");
// nameAndSignatureSRPCount is divided by 2, because there is a name and a signature per NAS field
out.println(statistics.cpFieldNASCount - statistics.nameAndSignatureSRPCount / 2);
}
} catch (CorruptDataException e) {
throw new DDRInteractiveCommandException(e);
}
}
use of com.ibm.j9ddr.vm29.tools.ddrinteractive.LinearDumper.J9ClassRegionNode in project openj9 by eclipse.
the class QueryRomClassCommand method queryROMClass.
private void queryROMClass(PrintStream out, J9ROMClassPointer romClass, String query, J9ClassRegionNode allRegionsNode) throws CorruptDataException {
/* /methods/method[3]/methodBytecodes */
String[] parts = query.split("/");
for (String part : parts) {
if (part.length() != 0) {
String sectionName;
int index;
if (part.endsWith("]")) {
Pattern p = Pattern.compile("^(.*)\\[(\\d*)\\]");
Matcher m = p.matcher(part);
m.find();
sectionName = m.group(1).trim();
index = Integer.parseInt(m.group(2).trim());
} else {
sectionName = part;
index = 0;
}
final List<J9ClassRegionNode> children = allRegionsNode.getChildren();
if (children.size() <= index) {
out.println("Error: section not found or bad formatting");
printUsage(out);
return;
}
for (J9ClassRegionNode classRegionNode : children) {
if (classRegionNode.getNodeValue() != null) {
if (classRegionNode.getNodeValue().getName().equals(sectionName)) {
if (index-- == 0) {
allRegionsNode = classRegionNode;
continue;
}
}
}
}
}
}
CommandUtils.dbgPrint(out, String.format("ROM Class '%s' at %s:\n\n", J9UTF8Helper.stringValue(romClass.className()), romClass.getHexAddress()));
LinearDumper.printAllRegions(out, romClass, 9, allRegionsNode, 0);
}
use of com.ibm.j9ddr.vm29.tools.ddrinteractive.LinearDumper.J9ClassRegionNode in project openj9 by eclipse.
the class RamClassSummaryCommand method run.
public void run(String command, String[] args, Context context, PrintStream out) throws DDRInteractiveCommandException {
try {
J9JavaVMPointer vm = J9RASHelper.getVM(DataType.getJ9RASPointer());
ClassSummaryHelper classSummaryHelper = new ClassSummaryHelper(preferredOrder);
ClassSegmentIterator classSegmentIterator = new ClassSegmentIterator(vm.classMemorySegments());
while (classSegmentIterator.hasNext()) {
J9ClassPointer classPointer = (J9ClassPointer) classSegmentIterator.next();
numberOfClasses++;
ClassWalker classWalker = new RamClassWalker(classPointer, context);
LinearDumper linearDumper = new LinearDumper();
J9ClassRegionNode allRegionsNode = linearDumper.getAllRegions(classWalker);
classSummaryHelper.addRegionsForClass(allRegionsNode);
}
classSummaryHelper.printStatistics(out);
} catch (CorruptDataException e) {
throw new DDRInteractiveCommandException(e);
}
}
use of com.ibm.j9ddr.vm29.tools.ddrinteractive.LinearDumper.J9ClassRegionNode in project openj9 by eclipse.
the class ClassSummaryHelper method appendSizeStat.
private void appendSizeStat(Map<String, Long> sizeStat, J9ClassRegionNode regionNode, String parentName) {
String section = parentName;
final J9ClassRegion nodeValue = regionNode.getNodeValue();
if (nodeValue != null) {
if (nodeValue.getType() == SlotType.J9_SECTION_START || nodeValue.getType() == SlotType.J9_Padding) {
section = section + "/" + nodeValue.getName();
if (sizeStat.containsKey(section)) {
sizeStat.put(section, new Long(sizeStat.get(section) + nodeValue.getLength()));
} else {
sizeStat.put(section, new Long(nodeValue.getLength()));
}
}
}
for (J9ClassRegionNode classRegionNode : regionNode.getChildren()) {
appendSizeStat(sizeStat, classRegionNode, section);
}
}
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