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 * Copyright (c) 2011, 2018, Oracle and/or its affiliates. All rights reserved.
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
 *
 * This code is free software; you can redistribute it and/or modify it
 * under the terms of the GNU General Public License version 2 only, as
 * published by the Free Software Foundation.
 *
 * This code is distributed in the hope that it will be useful, but WITHOUT
 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
 * version 2 for more details (a copy is included in the LICENSE file that
 * accompanied this code).
 *
 * You should have received a copy of the GNU General Public License version
 * 2 along with this work; if not, write to the Free Software Foundation,
 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
 *
 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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 */


package org.graalvm.compiler.hotspot;

import jdk.vm.ci.hotspot.HotSpotVMConfigAccess;
import jdk.vm.ci.hotspot.HotSpotVMConfigStore;

This is a source with different versions for various JDKs. When modifying/adding a field in this class accessed from outside this class, be sure to update the field appropriately in all source files named GraalHotSpotVMConfigVersioned.java. Fields are grouped according to the most recent JBS issue showing why they are versioned. JDK Version: 11+ /**
 * This is a source with different versions for various JDKs. When modifying/adding a field in this
 * class accessed from outside this class, be sure to update the field appropriately in all source
 * files named {@code GraalHotSpotVMConfigVersioned.java}.
 *
 * Fields are grouped according to the most recent JBS issue showing why they are versioned.
 *
 * JDK Version: 11+
 */
final class GraalHotSpotVMConfigVersioned extends HotSpotVMConfigAccess {

    GraalHotSpotVMConfigVersioned(HotSpotVMConfigStore store) {
        super(store);
    }

    private boolean initInlineNotify() {
        String syncKnobs = getFlag("SyncKnobs", String.class, "");
        return syncKnobs == null || !syncKnobs.contains("InlineNotify=0");
    }

    // JSK-8132287
    final boolean inlineNotify = initInlineNotify();

    // JDK-8073583
    final boolean useCRC32CIntrinsics = getFlag("UseCRC32CIntrinsics", Boolean.class);

    // JDK-8046936
    final int javaThreadReservedStackActivationOffset = getFieldOffset("JavaThread::_reserved_stack_activation", Integer.class, "address");
    final int methodFlagsOffset = getFieldOffset("Method::_flags", Integer.class, "u2");
    final long throwDelayedStackOverflowErrorEntry = getFieldValue("StubRoutines::_throw_delayed_StackOverflowError_entry", Long.class, "address");
    final long enableStackReservedZoneAddress = getAddress("SharedRuntime::enable_stack_reserved_zone");

    // JDK-8135085
    final int methodIntrinsicIdOffset = getFieldOffset("Method::_intrinsic_id", Integer.class, "u2");

    // JDK-8151956
    final int methodCodeOffset = getFieldOffset("Method::_code", Integer.class, "CompiledMethod*");

    // JDK-8059606
    final int invocationCounterIncrement = getConstant("InvocationCounter::count_increment", Integer.class);
    final int invocationCounterShift = getConstant("InvocationCounter::count_shift", Integer.class);

    // JDK-8195142
    final byte dirtyCardValue = getConstant("CardTable::dirty_card", Byte.class);
    final byte g1YoungCardValue = getConstant("G1CardTable::g1_young_gen", Byte.class);

    // JDK-8201318
    final int g1SATBQueueMarkingOffset = getConstant("G1ThreadLocalData::satb_mark_queue_active_offset", Integer.class);
    final int g1SATBQueueIndexOffset = getConstant("G1ThreadLocalData::satb_mark_queue_index_offset", Integer.class);
    final int g1SATBQueueBufferOffset = getConstant("G1ThreadLocalData::satb_mark_queue_buffer_offset", Integer.class);
    final int g1CardQueueIndexOffset = getConstant("G1ThreadLocalData::dirty_card_queue_index_offset", Integer.class);
    final int g1CardQueueBufferOffset = getConstant("G1ThreadLocalData::dirty_card_queue_buffer_offset", Integer.class);

    // JDK-8033552
    final long heapTopAddress = getFieldValue("CompilerToVM::Data::_heap_top_addr", Long.class, "HeapWord* volatile*");

    // JDK-8015774
    final long codeCacheLowBound = getFieldValue("CodeCache::_low_bound", Long.class, "address");
    final long codeCacheHighBound = getFieldValue("CodeCache::_high_bound", Long.class, "address");

    // JDK-8205105
    boolean useFastTLABRefill = false;
}