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

Example 31 with UDATA

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

the class ThreadsCommand method search.

private void search(PrintStream out, UDATA tid) throws DDRInteractiveCommandException {
    try {
        J9JavaVMPointer vm = J9RASHelper.getVM(DataType.getJ9RASPointer());
        J9VMThreadPointer mainThread = vm.mainThread();
        if (mainThread.notNull()) {
            J9VMThreadPointer threadCursor = vm.mainThread();
            do {
                if (threadCursor.osThread().tid().eq(tid)) {
                    out.println(String.format("\t!stack 0x%08x\t!j9vmthread 0x%08x\t!j9thread 0x%08x\ttid 0x%x (%d) // %s", threadCursor.getAddress(), threadCursor.getAddress(), threadCursor.osThread().getAddress(), threadCursor.osThread().tid().longValue(), threadCursor.osThread().tid().longValue(), getThreadName(threadCursor)));
                    break;
                }
                threadCursor = threadCursor.linkNext();
            } while (!threadCursor.eq(mainThread));
        }
    } catch (CorruptDataException e) {
        throw new DDRInteractiveCommandException(e);
    }
}

Example 32 with UDATA

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

the class J9VTablesCommand method run.

public void run(String command, String[] args, Context context, final PrintStream out) throws DDRInteractiveCommandException {
    try {
        final J9JavaVMPointer vm = J9RASHelper.getVM(DataType.getJ9RASPointer());
        J9ClassPointer ramClass;
        UDATA vTableSlotCount;
        // UDATA  jitVTableSlotCount;
        UDATAPointer jitVTable = UDATAPointer.NULL;
        UDATAPointer vTable;
        long address = CommandUtils.parsePointer(args[0], J9BuildFlags.env_data64);
        ramClass = J9ClassPointer.cast(address);
        vTable = J9ClassHelper.vTable(ramClass);
        vTableSlotCount = vTable.at(0);
        if (J9BuildFlags.interp_nativeSupport) {
            if (!vm.jitConfig().isNull()) {
                jitVTable = UDATAPointer.cast(U8Pointer.cast(ramClass).sub((vTableSlotCount.longValue() + 1) * UDATA.SIZEOF));
            // jitVTableSlotCount = vTableSlotCount.sub(1);
            }
        }
        CommandUtils.dbgPrint(out, String.format("VTable for j9class %s  (size=%d - 1 for skipped resolve method)\n", ramClass.getHexAddress(), vTableSlotCount.longValue()));
        CommandUtils.dbgPrint(out, String.format("\tInterpreted%s\n", (!jitVTable.isNull()) ? "\t\tJitted\n" : ""));
        /*	First entry in vtable is the vtable count.
			 * 	Second entry is the magic method reference.
			 *  Skip both and start from the third element in vTable which is the first virtual method reference.
			 **/
        for (long i = 2; i < vTableSlotCount.longValue() + 1; i++) {
            String name = J9MethodHelper.getName(J9MethodPointer.cast(vTable.at(i)));
            String intAddr = U8Pointer.cast(vTable.at(i)).getHexAddress();
            if (!jitVTable.isNull()) {
                String jitAddr = U8Pointer.cast(jitVTable.at(vTableSlotCount.sub(i))).getHexAddress();
                CommandUtils.dbgPrint(out, String.format(" %d\t!j9method %s\t%s\t%s\n", i - 1, intAddr, jitAddr, name));
            } else {
                CommandUtils.dbgPrint(out, String.format(" %d\t!j9method %s\t%s\t\n", i - 1, intAddr, name));
            }
        }
        return;
    } catch (CorruptDataException e) {
        throw new DDRInteractiveCommandException(e);
    }
}

Example 33 with UDATA

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

the class MarkMapCommand method showActiveMarkMap.

protected void showActiveMarkMap(PrintStream out) {
    out.format("Currently active mark map: !mm_heapmap %s\n", markMap.getHeapMap().getHexAddress());
    out.format("\tHeap: %s -> %s\n", markMap.getHeapBase().getHexAddress(), markMap.getHeapTop().getHexAddress());
    UDATA maxOffset = markMap.getSlotIndexAndMask(J9ObjectPointer.cast(markMap.getHeapTop().subOffset(markMap.getObjectGrain())))[0];
    maxOffset = maxOffset.add(1);
    out.format("\tBits: %s -> %s\n", markMap.getHeapMapBits().getHexAddress(), markMap.getHeapMapBits().add(maxOffset).getHexAddress());
}

Example 34 with UDATA

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

the class J9MemTagCommands method runFindHeader.

private void runFindHeader(String command, String[] args, Context context) throws DDRInteractiveCommandException {
    long address = 0;
    J9MemTagPointer header = null;
    if (args.length != 1) {
        out.println("Usage: ");
        out.println("  !findheader <address> (e.g. !findheader 0xa2b4c6d8)");
        return;
    }
    address = CommandUtils.parsePointer(args[0], J9BuildFlags.env_data64);
    out.println(String.format("Searching memory allocation header for %s", U8Pointer.cast(address).getHexAddress()));
    /*
		 * Search for an eyecatcher on or before the specified address. Start
		 * the search on the specified address since an eyecatcher may start on
		 * the address. Ensure that the eyecatcher that is found is on or before
		 * the address. If this condition is not satisfied, start searching for
		 * an eyecatcher 1K before the previous start address. Continue until an
		 * eyecatcher is found, or the start address of 0 is reached.
		 */
    long searchBase = address - SEARCH_SLAB_SIZE;
    SEARCH_LOOP: do {
        /* Add 3 (length of eyecatcher - 1) to the top address, to catch eyecatchers written between search slabs */
        J9MemTagIterator it = J9MemTagIterator.iterateAllocatedHeaders(searchBase, searchBase + SEARCH_SLAB_SIZE + 3);
        while (it.hasNext()) {
            J9MemTagPointer potential = it.next();
            if (Addresses.greaterThan(potential.getAddress(), address)) {
                /* Walked past address */
                break;
            }
            VoidPointer start = J9MemTagHelper.j9mem_get_memory_base(potential);
            VoidPointer end;
            try {
                end = start.addOffset(potential.allocSize().longValue());
            } catch (CorruptDataException e) {
                continue;
            }
            if (Addresses.greaterThanOrEqual(address, start.getAddress()) && Addresses.lessThan(address, end.getAddress())) {
                /* Match */
                header = potential;
                break SEARCH_LOOP;
            }
        }
        if (Addresses.lessThan(searchBase, SEARCH_SLAB_SIZE)) {
            searchBase = 0;
        } else {
            searchBase = searchBase - SEARCH_SLAB_SIZE;
        }
    } while (searchBase != 0);
    if (header == null) {
        out.println("No memory allocation header found");
    } else {
        String callsite;
        try {
            callsite = header.callSite().getCStringAtOffset(0);
        } catch (CorruptDataException ex) {
            callsite = "<FAULT> reading callsite string: " + ex.getMessage();
        }
        String categoryName;
        try {
            categoryName = header.category().name().getCStringAtOffset(0);
        } catch (CorruptDataException ex) {
            categoryName = "<FAULT> reading category name string: " + ex.getMessage();
        }
        try {
            out.println(String.format("Found memory allocation header, !j9x %s,0x%#x", J9MemTagHelper.j9mem_get_memory_base(header).getHexAddress(), header.allocSize().longValue()));
            out.println(String.format("J9MemTag at %s {", header.getHexAddress()));
            out.println(String.format("    U_32 eyeCatcher = 0x%x;", header.eyeCatcher().longValue()));
            out.println(String.format("    U_32 sumCheck = 0x%x;", header.sumCheck().longValue()));
            out.println(String.format("    UDATA allocSize = 0x%x;", header.allocSize().longValue()));
            out.println(String.format("    char* callSite = %s;", callsite));
            out.println(String.format("    struct OMRMemCategory* category = !omrmemcategory 0x%x (%s);", header.category().longValue(), categoryName));
            out.println("}");
        } catch (CorruptDataException ex) {
            out.println("CDE formatting J9MemTag at " + header.getHexAddress());
        }
    }
}

Example 35 with UDATA

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

the class SegmentsUtil method dbgDumpJITCodeSegmentList.

public static void dbgDumpJITCodeSegmentList(PrintStream out, J9MemorySegmentListPointer segmentListPointer) throws CorruptDataException {
    String fmt = null;
    if (J9BuildFlags.env_data64) {
        out.append("+----------------+----------------+----------------+----------------+----------------+--------+\n");
        out.append("|    segment     |     start      |    warmAlloc   |    coldAlloc   |      end       |  size  |\n");
        out.append("+----------------+----------------+----------------+----------------+----------------+--------+\n");
        fmt = " %016x %016x %016x %016x %016x %8x";
    } else {
        out.append("+--------+--------+--------+--------+--------+--------+\n");
        out.append("|segment | start  |  warm  |  cold  |  end   |  size  |\n");
        out.append("+--------+--------+--------+--------+--------+--------+\n");
        fmt = " %08x %08x %08x %08x %08x %8x";
    }
    MemorySegmentIterator segmentIterator = new MemorySegmentIterator(segmentListPointer, MemorySegmentIterator.MEMORY_ALL_TYPES, false);
    long totalMemory = 0L, totalMemoryInUse = 0L;
    while (segmentIterator.hasNext()) {
        J9MemorySegmentPointer seg = (J9MemorySegmentPointer) segmentIterator.next();
        final UDATA heapBase = UDATAPointer.cast(seg.heapBase()).at(0);
        long warmAlloc = UDATAPointer.cast(heapBase).at(0).longValue();
        long coldAlloc = UDATAPointer.cast(heapBase.add(UDATA.SIZEOF)).at(0).longValue();
        totalMemory += seg.size().longValue();
        totalMemoryInUse += (warmAlloc - seg.heapBase().longValue()) + (seg.heapTop().longValue() - coldAlloc);
        String msg = String.format(fmt, seg.getAddress(), seg.heapBase().getAddress(), warmAlloc, coldAlloc, seg.heapTop().getAddress(), seg.size().longValue());
        out.append(msg);
        out.append(nl);
        seg = segmentListPointer.nextSegment();
    }
    if (J9BuildFlags.env_data64) {
        out.append("+----------------+----------------+----------------+----------------+----------------+--------+\n");
    } else {
        out.append("+--------+--------+--------+--------+--------+--------+\n");
    }
    printMemoryUsed(out, totalMemory, totalMemoryInUse);
    out.append(nl);
}