1 /*
2 * Copyright (c) 2015, 2020, 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
24 #include "precompiled.hpp"
25 #include "gc/z/zGlobals.hpp"
26
27 uint32_t ZGlobalPhase = ZPhaseRelocate;
28 uint32_t ZGlobalSeqNum = 1;
29
30 size_t ZPageSizeMediumShift;
31 size_t ZPageSizeMedium;
32
33 size_t ZObjectSizeLimitMedium;
34
35 const int& ZObjectAlignmentSmallShift = LogMinObjAlignmentInBytes;
36 int ZObjectAlignmentMediumShift;
37
38 const int& ZObjectAlignmentSmall = MinObjAlignmentInBytes;
39 int ZObjectAlignmentMedium;
40
41 uintptr_t ZAddressGoodMask;
42 uintptr_t ZAddressBadMask;
43 uintptr_t ZAddressWeakBadMask;
44
ZAddressCalculateBadMaskHighOrderBitsAddr()45 static uint32_t* ZAddressCalculateBadMaskHighOrderBitsAddr() {
46 const uintptr_t addr = reinterpret_cast<uintptr_t>(&ZAddressBadMask);
47 return reinterpret_cast<uint32_t*>(addr + ZAddressBadMaskHighOrderBitsOffset);
48 }
49
50 uint32_t* ZAddressBadMaskHighOrderBitsAddr = ZAddressCalculateBadMaskHighOrderBitsAddr();
51
52 size_t ZAddressOffsetBits;
53 uintptr_t ZAddressOffsetMask;
54 size_t ZAddressOffsetMax;
55
56 size_t ZAddressMetadataShift;
57 uintptr_t ZAddressMetadataMask;
58
59 uintptr_t ZAddressMetadataMarked;
60 uintptr_t ZAddressMetadataMarked0;
61 uintptr_t ZAddressMetadataMarked1;
62 uintptr_t ZAddressMetadataRemapped;
63 uintptr_t ZAddressMetadataFinalizable;
64
ZGlobalPhaseToString()65 const char* ZGlobalPhaseToString() {
66 switch (ZGlobalPhase) {
67 case ZPhaseMark:
68 return "Mark";
69
70 case ZPhaseMarkCompleted:
71 return "MarkCompleted";
72
73 case ZPhaseRelocate:
74 return "Relocate";
75
76 default:
77 return "Unknown";
78 }
79 }
80