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 jdk.vm.ci.hotspot;
24
25 import static jdk.vm.ci.hotspot.HotSpotJVMCIRuntime.runtime;
26 import static jdk.vm.ci.hotspot.UnsafeAccess.UNSAFE;
27
28 import jdk.internal.misc.Unsafe;
29
30 /**
31 * Used to access native configuration details.
32 *
33 * All non-static, public fields in this class are so that they can be compiled as constants.
34 */
35 class HotSpotVMConfig extends HotSpotVMConfigAccess {
36
37 /**
38 * Gets the configuration associated with the singleton {@link HotSpotJVMCIRuntime}.
39 */
40 static HotSpotVMConfig config() {
41 return runtime().getConfig();
42 }
43
44 private final String osArch = getHostArchitectureName();
45
46 HotSpotVMConfig(HotSpotVMConfigStore store) {
47 super(store);
48 }
49
50 /**
51 * Gets the host architecture name for the purpose of finding the corresponding
52 * {@linkplain HotSpotJVMCIBackendFactory backend}.
53 */
54 String getHostArchitectureName() {
55 String arch = System.getProperty("os.arch");
56 switch (arch) {
57 case "x86_64":
58 return "amd64";
59
60 case "sparcv9":
61 return "sparc";
62 default:
63 return arch;
64 }
65 }
66
67 final boolean useDeferredInitBarriers = getFlag("ReduceInitialCardMarks", Boolean.class);
100
101 final int arrayU1LengthOffset = getFieldOffset("Array<int>::_length", Integer.class, "int");
102 final int arrayU1DataOffset = getFieldOffset("Array<u1>::_data", Integer.class);
103 final int arrayU2DataOffset = getFieldOffset("Array<u2>::_data", Integer.class);
104
105 final int fieldInfoAccessFlagsOffset = getConstant("FieldInfo::access_flags_offset", Integer.class);
106 final int fieldInfoNameIndexOffset = getConstant("FieldInfo::name_index_offset", Integer.class);
107 final int fieldInfoSignatureIndexOffset = getConstant("FieldInfo::signature_index_offset", Integer.class);
108 final int fieldInfoLowPackedOffset = getConstant("FieldInfo::low_packed_offset", Integer.class);
109 final int fieldInfoHighPackedOffset = getConstant("FieldInfo::high_packed_offset", Integer.class);
110 final int fieldInfoFieldSlots = getConstant("FieldInfo::field_slots", Integer.class);
111
112 final int fieldInfoTagSize = getConstant("FIELDINFO_TAG_SIZE", Integer.class);
113
114 final int jvmAccHasFinalizer = getConstant("JVM_ACC_HAS_FINALIZER", Integer.class);
115 final int jvmAccFieldInternal = getConstant("JVM_ACC_FIELD_INTERNAL", Integer.class);
116 final int jvmAccFieldStable = getConstant("JVM_ACC_FIELD_STABLE", Integer.class);
117 final int jvmAccFieldHasGenericSignature = getConstant("JVM_ACC_FIELD_HAS_GENERIC_SIGNATURE", Integer.class);
118 final int jvmAccIsCloneableFast = getConstant("JVM_ACC_IS_CLONEABLE_FAST", Integer.class);
119
120 // Modifier.SYNTHETIC is not public so we get it via vmStructs.
121 final int jvmAccSynthetic = getConstant("JVM_ACC_SYNTHETIC", Integer.class);
122
123 // This is only valid on AMD64.
124 final int runtimeCallStackSize = getConstant("frame::arg_reg_save_area_bytes", Integer.class, osArch.equals("amd64") ? null : 0);
125
126 private final int markWordNoHashInPlace = getConstant("markOopDesc::no_hash_in_place", Integer.class);
127 private final int markWordNoLockInPlace = getConstant("markOopDesc::no_lock_in_place", Integer.class);
128
129 /**
130 * See {@code markOopDesc::prototype()}.
131 */
132 long arrayPrototypeMarkWord() {
133 return markWordNoHashInPlace | markWordNoLockInPlace;
134 }
135
136 final int methodAccessFlagsOffset = getFieldOffset("Method::_access_flags", Integer.class, "AccessFlags");
137 final int methodConstMethodOffset = getFieldOffset("Method::_constMethod", Integer.class, "ConstMethod*");
138 final int methodIntrinsicIdOffset = getFieldOffset("Method::_intrinsic_id", Integer.class, "u2");
139 final int methodFlagsOffset = getFieldOffset("Method::_flags", Integer.class, "u2");
140 final int methodVtableIndexOffset = getFieldOffset("Method::_vtable_index", Integer.class, "int");
141
142 final int methodDataOffset = getFieldOffset("Method::_method_data", Integer.class, "MethodData*");
|
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 jdk.vm.ci.hotspot;
24
25 import static jdk.vm.ci.hotspot.HotSpotJVMCIRuntime.runtime;
26 import static jdk.vm.ci.hotspot.UnsafeAccess.UNSAFE;
27
28 import jdk.internal.misc.Unsafe;
29 import jdk.vm.ci.meta.ModifiersProvider;
30
31 /**
32 * Used to access native configuration details.
33 *
34 * All non-static, public fields in this class are so that they can be compiled as constants.
35 */
36 class HotSpotVMConfig extends HotSpotVMConfigAccess {
37
38 /**
39 * Gets the configuration associated with the singleton {@link HotSpotJVMCIRuntime}.
40 */
41 static HotSpotVMConfig config() {
42 return runtime().getConfig();
43 }
44
45 private final String osArch = getHostArchitectureName();
46
47 HotSpotVMConfig(HotSpotVMConfigStore store) {
48 super(store);
49 assert ModifiersProvider.SYNTHETIC == getConstant("JVM_ACC_SYNTHETIC", Integer.class);
50 assert ModifiersProvider.ANNOTATION == getConstant("JVM_ACC_ANNOTATION", Integer.class);
51 assert ModifiersProvider.BRIDGE == getConstant("JVM_ACC_BRIDGE", Integer.class);
52 assert ModifiersProvider.VARARGS == getConstant("JVM_ACC_VARARGS", Integer.class);
53 assert ModifiersProvider.ENUM == getConstant("JVM_ACC_ENUM", Integer.class);
54 }
55
56 /**
57 * Gets the host architecture name for the purpose of finding the corresponding
58 * {@linkplain HotSpotJVMCIBackendFactory backend}.
59 */
60 String getHostArchitectureName() {
61 String arch = System.getProperty("os.arch");
62 switch (arch) {
63 case "x86_64":
64 return "amd64";
65
66 case "sparcv9":
67 return "sparc";
68 default:
69 return arch;
70 }
71 }
72
73 final boolean useDeferredInitBarriers = getFlag("ReduceInitialCardMarks", Boolean.class);
106
107 final int arrayU1LengthOffset = getFieldOffset("Array<int>::_length", Integer.class, "int");
108 final int arrayU1DataOffset = getFieldOffset("Array<u1>::_data", Integer.class);
109 final int arrayU2DataOffset = getFieldOffset("Array<u2>::_data", Integer.class);
110
111 final int fieldInfoAccessFlagsOffset = getConstant("FieldInfo::access_flags_offset", Integer.class);
112 final int fieldInfoNameIndexOffset = getConstant("FieldInfo::name_index_offset", Integer.class);
113 final int fieldInfoSignatureIndexOffset = getConstant("FieldInfo::signature_index_offset", Integer.class);
114 final int fieldInfoLowPackedOffset = getConstant("FieldInfo::low_packed_offset", Integer.class);
115 final int fieldInfoHighPackedOffset = getConstant("FieldInfo::high_packed_offset", Integer.class);
116 final int fieldInfoFieldSlots = getConstant("FieldInfo::field_slots", Integer.class);
117
118 final int fieldInfoTagSize = getConstant("FIELDINFO_TAG_SIZE", Integer.class);
119
120 final int jvmAccHasFinalizer = getConstant("JVM_ACC_HAS_FINALIZER", Integer.class);
121 final int jvmAccFieldInternal = getConstant("JVM_ACC_FIELD_INTERNAL", Integer.class);
122 final int jvmAccFieldStable = getConstant("JVM_ACC_FIELD_STABLE", Integer.class);
123 final int jvmAccFieldHasGenericSignature = getConstant("JVM_ACC_FIELD_HAS_GENERIC_SIGNATURE", Integer.class);
124 final int jvmAccIsCloneableFast = getConstant("JVM_ACC_IS_CLONEABLE_FAST", Integer.class);
125
126 // This is only valid on AMD64.
127 final int runtimeCallStackSize = getConstant("frame::arg_reg_save_area_bytes", Integer.class, osArch.equals("amd64") ? null : 0);
128
129 private final int markWordNoHashInPlace = getConstant("markOopDesc::no_hash_in_place", Integer.class);
130 private final int markWordNoLockInPlace = getConstant("markOopDesc::no_lock_in_place", Integer.class);
131
132 /**
133 * See {@code markOopDesc::prototype()}.
134 */
135 long arrayPrototypeMarkWord() {
136 return markWordNoHashInPlace | markWordNoLockInPlace;
137 }
138
139 final int methodAccessFlagsOffset = getFieldOffset("Method::_access_flags", Integer.class, "AccessFlags");
140 final int methodConstMethodOffset = getFieldOffset("Method::_constMethod", Integer.class, "ConstMethod*");
141 final int methodIntrinsicIdOffset = getFieldOffset("Method::_intrinsic_id", Integer.class, "u2");
142 final int methodFlagsOffset = getFieldOffset("Method::_flags", Integer.class, "u2");
143 final int methodVtableIndexOffset = getFieldOffset("Method::_vtable_index", Integer.class, "int");
144
145 final int methodDataOffset = getFieldOffset("Method::_method_data", Integer.class, "MethodData*");
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