1 /*

     2  * Copyright (c) 2011, 2018, Oracle and/or its affiliates. All rights reserved.

     3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.

     4  *

     5  * This code is free software; you can redistribute it and/or modify it

     6  * under the terms of the GNU General Public License version 2 only, as

     7  * published by the Free Software Foundation.

     8  *

     9  * This code is distributed in the hope that it will be useful, but WITHOUT

    10  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or

    11  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License

    12  * version 2 for more details (a copy is included in the LICENSE file that

    13  * accompanied this code).

    14  *

    15  * You should have received a copy of the GNU General Public License version

    16  * 2 along with this work; if not, write to the Free Software Foundation,

    17  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.

    18  *

    19  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA

    20  * or visit www.oracle.com if you need additional information or have any

    21  * questions.

    22  */

    23 package org.graalvm.compiler.hotspot;

    24 

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

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

    27 

    28 /**

    29  * This is a source with different versions for various JDKs. When modifying/adding a field in this

    30  * class accessed from outside this class, be sure to update the field appropriately in all source

    31  * files named {@code GraalHotSpotVMConfigVersioned.java}.

    32  *

    33  * Fields are grouped according to the most recent JBS issue showing why they are versioned.

    34  *

    35  * JDK Version: 11+

    36  */

    37 final class GraalHotSpotVMConfigVersioned extends HotSpotVMConfigAccess {

    38 

    39     GraalHotSpotVMConfigVersioned(HotSpotVMConfigStore store) {

    40         super(store);

    41     }

    42 

    43     // JDK-8073583

    44     final boolean useCRC32CIntrinsics = getFlag("UseCRC32CIntrinsics", Boolean.class);

    45 

    46     // JDK-8075171

    47     final boolean inlineNotify = getFlag("InlineNotify", Boolean.class);

    48 

    49     // JDK-8046936

    50     final int javaThreadReservedStackActivationOffset = getFieldOffset("JavaThread::_reserved_stack_activation", Integer.class, "address");

    51     final int methodFlagsOffset = getFieldOffset("Method::_flags", Integer.class, "u2");

    52     final long throwDelayedStackOverflowErrorEntry = getFieldValue("StubRoutines::_throw_delayed_StackOverflowError_entry", Long.class, "address");

    53     final long enableStackReservedZoneAddress = getAddress("SharedRuntime::enable_stack_reserved_zone");

    54 

    55     // JDK-8135085

    56     final int methodIntrinsicIdOffset = getFieldOffset("Method::_intrinsic_id", Integer.class, "u2");

    57 

    58     // JDK-8151956

    59     final int methodCodeOffset = getFieldOffset("Method::_code", Integer.class, "CompiledMethod*");

    60 

    61     // JDK-8059606

    62     final int invocationCounterIncrement = getConstant("InvocationCounter::count_increment", Integer.class);

    63     final int invocationCounterShift = getConstant("InvocationCounter::count_shift", Integer.class);

    64 

    65     // JDK-8195142

    66     final byte dirtyCardValue = getConstant("CardTable::dirty_card", Byte.class);

    67     final byte g1YoungCardValue = getConstant("G1CardTable::g1_young_gen", Byte.class);

    68 

    69     // JDK-8201318

    70     final int g1SATBQueueMarkingOffset = getConstant("G1ThreadLocalData::satb_mark_queue_active_offset", Integer.class);

    71     final int g1SATBQueueIndexOffset = getConstant("G1ThreadLocalData::satb_mark_queue_index_offset", Integer.class);

    72     final int g1SATBQueueBufferOffset = getConstant("G1ThreadLocalData::satb_mark_queue_buffer_offset", Integer.class);

    73     final int g1CardQueueIndexOffset = getConstant("G1ThreadLocalData::dirty_card_queue_index_offset", Integer.class);

    74     final int g1CardQueueBufferOffset = getConstant("G1ThreadLocalData::dirty_card_queue_buffer_offset", Integer.class);

    75 

    76     // JDK-8033552

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

    78 

    79     // JDK-8015774

    80     final long codeCacheLowBound = getFieldValue("CodeCache::_low_bound", Long.class, "address");

    81     final long codeCacheHighBound = getFieldValue("CodeCache::_high_bound", Long.class, "address");

    82 }