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Datei: zGlobals.cpp Sprache: C

/*
* Copyright (c) 2015, 2020, 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
* or visit www.oracle.com if you need additional information or have any
* questions.
*/

#include "precompiled.hpp"
#include "gc/z/zGlobals.hpp"

uint32_t   ZGlobalPhase                = ZPhaseRelocate;
uint32_t   ZGlobalSeqNum               = 1;

size_t     ZPageSizeMediumShift;
size_t     ZPageSizeMedium;

size_t     ZObjectSizeLimitMedium;

const int& ZObjectAlignmentSmallShift  = LogMinObjAlignmentInBytes;
int        ZObjectAlignmentMediumShift;

const int& ZObjectAlignmentSmall       = MinObjAlignmentInBytes;
int        ZObjectAlignmentMedium;

uintptr_t  ZAddressGoodMask;
uintptr_t  ZAddressBadMask;
uintptr_t  ZAddressWeakBadMask;

static uint32_t* ZAddressCalculateBadMaskHighOrderBitsAddr() {
  const uintptr_t addr = reinterpret_cast<uintptr_t>(&ZAddressBadMask);
  return reinterpret_cast<uint32_t*>(addr + ZAddressBadMaskHighOrderBitsOffset);
}

uint32_t*  ZAddressBadMaskHighOrderBitsAddr = ZAddressCalculateBadMaskHighOrderBitsAddr();

size_t     ZAddressOffsetBits;
uintptr_t  ZAddressOffsetMask;
size_t     ZAddressOffsetMax;

size_t     ZAddressMetadataShift;
uintptr_t  ZAddressMetadataMask;

uintptr_t  ZAddressMetadataMarked;
uintptr_t  ZAddressMetadataMarked0;
uintptr_t  ZAddressMetadataMarked1;
uintptr_t  ZAddressMetadataRemapped;
uintptr_t  ZAddressMetadataFinalizable;

const char* ZGlobalPhaseToString() {
  switch (ZGlobalPhase) {
  case ZPhaseMark:
    return "Mark";

  case ZPhaseMarkCompleted:
    return "MarkCompleted";

  case ZPhaseRelocate:
    return "Relocate";

  default:
    return "Unknown";
  }
}

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