Examples with J9SharedCacheHeaderPointer com.ibm.j9ddr.vm29.pointer.generated.J9SharedCacheHeaderPointer used on opensource projects

Example 1 with J9SharedCacheHeaderPointer

use of com.ibm.j9ddr.vm29.pointer.generated.J9SharedCacheHeaderPointer 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);
    }
}