22 *
23 */
24
25 package sun.jvm.hotspot.gc.z;
26
27 import sun.jvm.hotspot.runtime.VM;
28 import sun.jvm.hotspot.types.Field;
29 import sun.jvm.hotspot.types.Type;
30 import sun.jvm.hotspot.types.TypeDataBase;
31
32 public class ZGlobals {
33 private static Field instanceField;
34
35 // Global phase state
36 public static int ZPhaseRelocate;
37
38 public static byte ZPageTypeSmall;
39 public static byte ZPageTypeMedium;
40 public static byte ZPageTypeLarge;
41
42 // Page size shifts
43 public static long ZPageSizeSmallShift;
44 public static long ZPageSizeMediumShift;
45 public static long ZPageSizeMinShift;
46
47 // Object alignment shifts
48 public static int ZObjectAlignmentMediumShift;
49 public static int ZObjectAlignmentLargeShift;
50
51 // Pointer part of address
52 public static long ZAddressOffsetShift;
53
54 // Pointer part of address
55 public static long ZAddressOffsetBits;
56 public static long ZAddressOffsetMask;
57 public static long ZAddressOffsetMax;
58
59 // Address space start/end/size
60 public static long ZAddressSpaceStart;
61
62 static {
63 VM.registerVMInitializedObserver((o, d) -> initialize(VM.getVM().getTypeDataBase()));
64 }
65
66 static private synchronized void initialize(TypeDataBase db) {
67 Type type = db.lookupType("ZGlobalsForVMStructs");
68
69 instanceField = type.getField("_instance_p");
70
71 ZPhaseRelocate = db.lookupIntConstant("ZPhaseRelocate").intValue();
72
73 ZPageTypeSmall = db.lookupIntConstant("ZPageTypeSmall").byteValue();
74 ZPageTypeMedium = db.lookupIntConstant("ZPageTypeMedium").byteValue();
75 ZPageTypeLarge = db.lookupIntConstant("ZPageTypeLarge").byteValue();
76
77 ZPageSizeSmallShift = db.lookupLongConstant("ZPageSizeSmallShift").longValue();
78 ZPageSizeMediumShift = db.lookupLongConstant("ZPageSizeMediumShift").longValue();
79 ZPageSizeMinShift = db.lookupLongConstant("ZPageSizeMinShift").longValue();
80
81 ZObjectAlignmentMediumShift = db.lookupIntConstant("ZObjectAlignmentMediumShift").intValue();
82 ZObjectAlignmentLargeShift = db.lookupIntConstant("ZObjectAlignmentLargeShift").intValue();;
83
84 ZAddressOffsetShift = db.lookupLongConstant("ZAddressOffsetShift").longValue();
85
86 ZAddressOffsetBits = db.lookupLongConstant("ZAddressOffsetBits").longValue();
87 ZAddressOffsetMask = db.lookupLongConstant("ZAddressOffsetMask").longValue();
88 ZAddressOffsetMax = db.lookupLongConstant("ZAddressOffsetMax").longValue();
89
90 ZAddressSpaceStart = db.lookupLongConstant("ZAddressSpaceStart").longValue();
91 }
92
93 private static ZGlobalsForVMStructs instance() {
94 return new ZGlobalsForVMStructs(instanceField.getAddress());
95 }
96
97 public static int ZGlobalPhase() {
98 return instance().ZGlobalPhase();
99 }
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22 *
23 */
24
25 package sun.jvm.hotspot.gc.z;
26
27 import sun.jvm.hotspot.runtime.VM;
28 import sun.jvm.hotspot.types.Field;
29 import sun.jvm.hotspot.types.Type;
30 import sun.jvm.hotspot.types.TypeDataBase;
31
32 public class ZGlobals {
33 private static Field instanceField;
34
35 // Global phase state
36 public static int ZPhaseRelocate;
37
38 public static byte ZPageTypeSmall;
39 public static byte ZPageTypeMedium;
40 public static byte ZPageTypeLarge;
41
42 // Granule size shift
43 public static long ZGranuleSizeShift;
44
45 // Page size shifts
46 public static long ZPageSizeSmallShift;
47 public static long ZPageSizeMediumShift;
48
49 // Object alignment shifts
50 public static int ZObjectAlignmentMediumShift;
51 public static int ZObjectAlignmentLargeShift;
52
53 // Pointer part of address
54 public static long ZAddressOffsetShift;
55
56 // Pointer part of address
57 public static long ZAddressOffsetBits;
58 public static long ZAddressOffsetMask;
59 public static long ZAddressOffsetMax;
60
61 // Address space start/end/size
62 public static long ZAddressSpaceStart;
63
64 static {
65 VM.registerVMInitializedObserver((o, d) -> initialize(VM.getVM().getTypeDataBase()));
66 }
67
68 static private synchronized void initialize(TypeDataBase db) {
69 Type type = db.lookupType("ZGlobalsForVMStructs");
70
71 instanceField = type.getField("_instance_p");
72
73 ZPhaseRelocate = db.lookupIntConstant("ZPhaseRelocate").intValue();
74
75 ZPageTypeSmall = db.lookupIntConstant("ZPageTypeSmall").byteValue();
76 ZPageTypeMedium = db.lookupIntConstant("ZPageTypeMedium").byteValue();
77 ZPageTypeLarge = db.lookupIntConstant("ZPageTypeLarge").byteValue();
78
79 ZGranuleSizeShift = db.lookupLongConstant("ZGranuleSizeShift").longValue();
80
81 ZPageSizeSmallShift = db.lookupLongConstant("ZPageSizeSmallShift").longValue();
82 ZPageSizeMediumShift = db.lookupLongConstant("ZPageSizeMediumShift").longValue();
83
84 ZObjectAlignmentMediumShift = db.lookupIntConstant("ZObjectAlignmentMediumShift").intValue();
85 ZObjectAlignmentLargeShift = db.lookupIntConstant("ZObjectAlignmentLargeShift").intValue();;
86
87 ZAddressOffsetShift = db.lookupLongConstant("ZAddressOffsetShift").longValue();
88
89 ZAddressOffsetBits = db.lookupLongConstant("ZAddressOffsetBits").longValue();
90 ZAddressOffsetMask = db.lookupLongConstant("ZAddressOffsetMask").longValue();
91 ZAddressOffsetMax = db.lookupLongConstant("ZAddressOffsetMax").longValue();
92
93 ZAddressSpaceStart = db.lookupLongConstant("ZAddressSpaceStart").longValue();
94 }
95
96 private static ZGlobalsForVMStructs instance() {
97 return new ZGlobalsForVMStructs(instanceField.getAddress());
98 }
99
100 public static int ZGlobalPhase() {
101 return instance().ZGlobalPhase();
102 }
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