1 /*
   2  * Copyright (c) 2011, 2019, 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 
  25 package org.graalvm.compiler.hotspot;
  26 
  27 import java.lang.reflect.Field;
  28 import java.lang.reflect.Modifier;
  29 import java.util.List;
  30 
  31 import org.graalvm.compiler.core.common.CompressEncoding;
  32 import org.graalvm.compiler.hotspot.nodes.GraalHotSpotVMConfigNode;
  33 
  34 import jdk.vm.ci.common.JVMCIError;
  35 import jdk.vm.ci.hotspot.HotSpotResolvedJavaMethod;
  36 import jdk.vm.ci.hotspot.HotSpotVMConfigStore;
  37 import jdk.vm.ci.meta.ResolvedJavaMethod;
  38 
  39 /**
  40  * Used to access native configuration details.
  41  */
  42 public class GraalHotSpotVMConfig extends GraalHotSpotVMConfigBase {
  43 
  44     GraalHotSpotVMConfig(HotSpotVMConfigStore store) {
  45         super(store);
  46 
  47         assert narrowKlassShift <= logKlassAlignment;
  48         assert narrowOopShift <= logMinObjAlignment();
  49         oopEncoding = new CompressEncoding(narrowOopBase, narrowOopShift);
  50         klassEncoding = new CompressEncoding(narrowKlassBase, narrowKlassShift);
  51 
  52         assert check();
  53     }
  54 
  55     private final CompressEncoding oopEncoding;
  56     private final CompressEncoding klassEncoding;
  57 
  58     public CompressEncoding getOopEncoding() {
  59         return oopEncoding;
  60     }
  61 
  62     public CompressEncoding getKlassEncoding() {
  63         return klassEncoding;
  64     }
  65 
  66     public final boolean cAssertions = getConstant("ASSERT", Boolean.class);
  67 
  68     public final int codeEntryAlignment = getFlag("CodeEntryAlignment", Integer.class);
  69     public final boolean enableContended = getFlag("EnableContended", Boolean.class);
  70     public final boolean restrictContended = getFlag("RestrictContended", Boolean.class);
  71     public final int contendedPaddingWidth = getFlag("ContendedPaddingWidth", Integer.class);
  72     public final int fieldsAllocationStyle = getFlag("FieldsAllocationStyle", Integer.class);
  73     public final boolean compactFields = getFlag("CompactFields", Boolean.class);
  74     public final boolean verifyOops = getFlag("VerifyOops", Boolean.class);
  75     public final boolean ciTime = getFlag("CITime", Boolean.class);
  76     public final boolean ciTimeEach = getFlag("CITimeEach", Boolean.class);
  77     public final boolean dontCompileHugeMethods = getFlag("DontCompileHugeMethods", Boolean.class);
  78     public final int hugeMethodLimit = getFlag("HugeMethodLimit", Integer.class);
  79     public final boolean printInlining = getFlag("PrintInlining", Boolean.class);
  80     public final boolean inline = getFlag("Inline", Boolean.class);
  81     public final boolean inlineNotify = versioned.inlineNotify;
  82     public final boolean useFastLocking = getFlag("JVMCIUseFastLocking", Boolean.class);
  83     public final boolean forceUnreachable = getFlag("ForceUnreachable", Boolean.class);
  84     public final int codeSegmentSize = getFlag("CodeCacheSegmentSize", Integer.class);
  85     public final boolean foldStableValues = getFlag("FoldStableValues", Boolean.class);
  86     public final int maxVectorSize = getFlag("MaxVectorSize", Integer.class);
  87 
  88     public final boolean verifyBeforeGC = getFlag("VerifyBeforeGC", Boolean.class);
  89     public final boolean verifyAfterGC = getFlag("VerifyAfterGC", Boolean.class);
  90 
  91     public final boolean useTLAB = getFlag("UseTLAB", Boolean.class);
  92     public final boolean useBiasedLocking = getFlag("UseBiasedLocking", Boolean.class);
  93     public final boolean usePopCountInstruction = getFlag("UsePopCountInstruction", Boolean.class);
  94     public final boolean useAESIntrinsics = getFlag("UseAESIntrinsics", Boolean.class);
  95     public final boolean useAESCTRIntrinsics = getFlag("UseAESCTRIntrinsics", Boolean.class, false);
  96     public final boolean useCRC32Intrinsics = getFlag("UseCRC32Intrinsics", Boolean.class);
  97     public final boolean useCRC32CIntrinsics = versioned.useCRC32CIntrinsics;
  98     public final boolean threadLocalHandshakes = getFlag("ThreadLocalHandshakes", Boolean.class, false);
  99 
 100     public final long continuationDoYield = versioned.continuationDoYield;
 101     public final long continuationThaw = versioned.continuationThaw;
 102     public final long continuationGetSP = versioned.continuationGetSP;
 103 
 104     private final boolean useMultiplyToLenIntrinsic = getFlag("UseMultiplyToLenIntrinsic", Boolean.class);
 105     private final boolean useSHA1Intrinsics = getFlag("UseSHA1Intrinsics", Boolean.class);
 106     private final boolean useSHA256Intrinsics = getFlag("UseSHA256Intrinsics", Boolean.class);
 107     private final boolean useSHA512Intrinsics = getFlag("UseSHA512Intrinsics", Boolean.class);
 108     private final boolean useGHASHIntrinsics = getFlag("UseGHASHIntrinsics", Boolean.class, false);
 109     private final boolean useBase64Intrinsics = getFlag("UseBASE64Intrinsics", Boolean.class, false);
 110     private final boolean useMontgomeryMultiplyIntrinsic = getFlag("UseMontgomeryMultiplyIntrinsic", Boolean.class, false);
 111     private final boolean useMontgomerySquareIntrinsic = getFlag("UseMontgomerySquareIntrinsic", Boolean.class, false);
 112     private final boolean useMulAddIntrinsic = getFlag("UseMulAddIntrinsic", Boolean.class, false);
 113     private final boolean useSquareToLenIntrinsic = getFlag("UseSquareToLenIntrinsic", Boolean.class, false);
 114     public final boolean useVectorizedMismatchIntrinsic = getFlag("UseVectorizedMismatchIntrinsic", Boolean.class, false);
 115     public final boolean useFMAIntrinsics = getFlag("UseFMA", Boolean.class, false);
 116 
 117     /*
 118      * These are methods because in some JDKs the flags are visible but the stubs themselves haven't
 119      * been exported so we have to check both if the flag is on and if we have the stub.
 120      */
 121     public boolean useMultiplyToLenIntrinsic() {
 122         return useMultiplyToLenIntrinsic && multiplyToLen != 0;
 123     }
 124 
 125     public boolean useSHA1Intrinsics() {
 126         return useSHA1Intrinsics && sha1ImplCompress != 0 && sha1ImplCompressMultiBlock != 0;
 127     }
 128 
 129     public boolean useSHA256Intrinsics() {
 130         return useSHA256Intrinsics && sha256ImplCompress != 0 && sha256ImplCompressMultiBlock != 0;
 131     }
 132 
 133     public boolean useSHA512Intrinsics() {
 134         return useSHA512Intrinsics && sha512ImplCompress != 0 && sha512ImplCompressMultiBlock != 0;
 135     }
 136 
 137     public boolean useGHASHIntrinsics() {
 138         return useGHASHIntrinsics && ghashProcessBlocks != 0;
 139     }
 140 
 141     public boolean useBase64Intrinsics() {
 142         return useBase64Intrinsics && base64EncodeBlock != 0;
 143     }
 144 
 145     public boolean useMontgomeryMultiplyIntrinsic() {
 146         return useMontgomeryMultiplyIntrinsic && montgomeryMultiply != 0;
 147     }
 148 
 149     public boolean useMontgomerySquareIntrinsic() {
 150         return useMontgomerySquareIntrinsic && montgomerySquare != 0;
 151     }
 152 
 153     public boolean useMulAddIntrinsic() {
 154         return useMulAddIntrinsic && mulAdd != 0;
 155     }
 156 
 157     public boolean useSquareToLenIntrinsic() {
 158         return useSquareToLenIntrinsic && squareToLen != 0;
 159     }
 160 
 161     public boolean inlineNotify() {
 162         return inlineNotify && notifyAddress != 0;
 163     }
 164 
 165     public boolean inlineNotifyAll() {
 166         return inlineNotify && notifyAllAddress != 0;
 167     }
 168 
 169     public final boolean useG1GC = getFlag("UseG1GC", Boolean.class);
 170     public final boolean useCMSGC = getFlag("UseConcMarkSweepGC", Boolean.class);
 171 
 172     public final int allocatePrefetchStyle = getFlag("AllocatePrefetchStyle", Integer.class);
 173     public final int allocatePrefetchInstr = getFlag("AllocatePrefetchInstr", Integer.class);
 174     public final int allocatePrefetchLines = getFlag("AllocatePrefetchLines", Integer.class);
 175     public final int allocateInstancePrefetchLines = getFlag("AllocateInstancePrefetchLines", Integer.class);
 176     public final int allocatePrefetchStepSize = getFlag("AllocatePrefetchStepSize", Integer.class);
 177     public final int allocatePrefetchDistance = getFlag("AllocatePrefetchDistance", Integer.class);
 178 
 179     private final long universeCollectedHeap = getFieldValue("CompilerToVM::Data::Universe_collectedHeap", Long.class, "CollectedHeap*");
 180     private final int collectedHeapTotalCollectionsOffset = getFieldOffset("CollectedHeap::_total_collections", Integer.class, "unsigned int");
 181 
 182     public long gcTotalCollectionsAddress() {
 183         return universeCollectedHeap + collectedHeapTotalCollectionsOffset;
 184     }
 185 
 186     public final boolean useDeferredInitBarriers = getFlag("ReduceInitialCardMarks", Boolean.class);
 187 
 188     // Compressed Oops related values.
 189     public final boolean useCompressedOops = getFlag("UseCompressedOops", Boolean.class);
 190     public final boolean useCompressedClassPointers = getFlag("UseCompressedClassPointers", Boolean.class);
 191 
 192     public final long narrowOopBase = getFieldValue("CompilerToVM::Data::Universe_narrow_oop_base", Long.class, "address");
 193     public final int narrowOopShift = getFieldValue("CompilerToVM::Data::Universe_narrow_oop_shift", Integer.class, "int");
 194     public final int objectAlignment = getFlag("ObjectAlignmentInBytes", Integer.class);
 195 
 196     public final int minObjAlignment() {
 197         return objectAlignment / heapWordSize;
 198     }
 199 
 200     public final int logMinObjAlignment() {
 201         return (int) (Math.log(objectAlignment) / Math.log(2));
 202     }
 203 
 204     public final int narrowKlassSize = getFieldValue("CompilerToVM::Data::sizeof_narrowKlass", Integer.class, "int");
 205     public final long narrowKlassBase = getFieldValue("CompilerToVM::Data::Universe_narrow_klass_base", Long.class, "address");
 206     public final int narrowKlassShift = getFieldValue("CompilerToVM::Data::Universe_narrow_klass_shift", Integer.class, "int");
 207     public final int logKlassAlignment = getConstant("LogKlassAlignmentInBytes", Integer.class);
 208 
 209     public final int stackShadowPages = getFlag("StackShadowPages", Integer.class);
 210     public final int stackReservedPages = getFlag("StackReservedPages", Integer.class, 0);
 211     public final boolean useStackBanging = getFlag("UseStackBanging", Boolean.class);
 212     public final int stackBias = getConstant("STACK_BIAS", Integer.class);
 213     public final int vmPageSize = getFieldValue("CompilerToVM::Data::vm_page_size", Integer.class, "int");
 214 
 215     public final int markOffset = getFieldOffset("oopDesc::_mark", Integer.class, "markOop");
 216     public final int hubOffset = getFieldOffset("oopDesc::_metadata._klass", Integer.class, "Klass*");
 217 
 218     public final int prototypeMarkWordOffset = getFieldOffset("Klass::_prototype_header", Integer.class, "markOop");
 219     public final int subklassOffset = getFieldOffset("Klass::_subklass", Integer.class, "Klass*");
 220     public final int nextSiblingOffset = getFieldOffset("Klass::_next_sibling", Integer.class, "Klass*");
 221     public final int superCheckOffsetOffset = getFieldOffset("Klass::_super_check_offset", Integer.class, "juint");
 222     public final int secondarySuperCacheOffset = getFieldOffset("Klass::_secondary_super_cache", Integer.class, "Klass*");
 223     public final int secondarySupersOffset = getFieldOffset("Klass::_secondary_supers", Integer.class, "Array<Klass*>*");
 224 
 225     public final boolean classMirrorIsHandle;
 226     public final int classMirrorOffset;
 227     {
 228         String name = "Klass::_java_mirror";
 229         int offset = -1;
 230         boolean isHandle = false;
 231         try {
 232             offset = getFieldOffset(name, Integer.class, "oop");
 233         } catch (JVMCIError e) {
 234 
 235         }
 236         if (offset == -1) {
 237             try {
 238                 offset = getFieldOffset(name, Integer.class, "jobject");
 239                 isHandle = true;
 240             } catch (JVMCIError e) {
 241                 try {
 242                     // JDK-8186777
 243                     offset = getFieldOffset(name, Integer.class, "OopHandle");
 244                     isHandle = true;
 245                 } catch (JVMCIError e2) {
 246                 }
 247             }
 248         }
 249         if (offset == -1) {
 250             throw new JVMCIError("cannot get offset of field " + name + " with type oop, jobject or OopHandle");
 251         }
 252         classMirrorOffset = offset;
 253         classMirrorIsHandle = isHandle;
 254     }
 255 
 256     public final int klassSuperKlassOffset = getFieldOffset("Klass::_super", Integer.class, "Klass*");
 257     public final int klassModifierFlagsOffset = getFieldOffset("Klass::_modifier_flags", Integer.class, "jint");
 258     public final int klassAccessFlagsOffset = getFieldOffset("Klass::_access_flags", Integer.class, "AccessFlags");
 259     public final int klassLayoutHelperOffset = getFieldOffset("Klass::_layout_helper", Integer.class, "jint");
 260 
 261     public final int klassLayoutHelperNeutralValue = getConstant("Klass::_lh_neutral_value", Integer.class);
 262     public final int layoutHelperLog2ElementSizeShift = getConstant("Klass::_lh_log2_element_size_shift", Integer.class);
 263     public final int layoutHelperLog2ElementSizeMask = getConstant("Klass::_lh_log2_element_size_mask", Integer.class);
 264     public final int layoutHelperElementTypeShift = getConstant("Klass::_lh_element_type_shift", Integer.class);
 265     public final int layoutHelperElementTypeMask = getConstant("Klass::_lh_element_type_mask", Integer.class);
 266     public final int layoutHelperHeaderSizeShift = getConstant("Klass::_lh_header_size_shift", Integer.class);
 267     public final int layoutHelperHeaderSizeMask = getConstant("Klass::_lh_header_size_mask", Integer.class);
 268     public final int layoutHelperArrayTagShift = getConstant("Klass::_lh_array_tag_shift", Integer.class);
 269     public final int layoutHelperArrayTagTypeValue = getConstant("Klass::_lh_array_tag_type_value", Integer.class);
 270     public final int layoutHelperArrayTagObjectValue = getConstant("Klass::_lh_array_tag_obj_value", Integer.class);
 271 
 272     /**
 273      * This filters out the bit that differentiates a type array from an object array.
 274      */
 275     public int layoutHelperElementTypePrimitiveInPlace() {
 276         return (layoutHelperArrayTagTypeValue & ~layoutHelperArrayTagObjectValue) << layoutHelperArrayTagShift;
 277     }
 278 
 279     public final int vtableEntrySize = getFieldValue("CompilerToVM::Data::sizeof_vtableEntry", Integer.class, "int");
 280     public final int vtableEntryMethodOffset = getFieldOffset("vtableEntry::_method", Integer.class, "Method*");
 281 
 282     public final int instanceKlassInitStateOffset = getFieldOffset("InstanceKlass::_init_state", Integer.class, "u1");
 283     public final int instanceKlassConstantsOffset = getFieldOffset("InstanceKlass::_constants", Integer.class, "ConstantPool*");
 284     public final int instanceKlassFieldsOffset = getFieldOffset("InstanceKlass::_fields", Integer.class, "Array<u2>*");
 285     public final int klassVtableStartOffset = getFieldValue("CompilerToVM::Data::Klass_vtable_start_offset", Integer.class, "int");
 286     public final int klassVtableLengthOffset = getFieldValue("CompilerToVM::Data::Klass_vtable_length_offset", Integer.class, "int");
 287 
 288     public final int instanceKlassStateLinked = getConstant("InstanceKlass::linked", Integer.class);
 289     public final int instanceKlassStateFullyInitialized = getConstant("InstanceKlass::fully_initialized", Integer.class);
 290 
 291     public final int arrayOopDescSize = getFieldValue("CompilerToVM::Data::sizeof_arrayOopDesc", Integer.class, "int");
 292 
 293     /**
 294      * The offset of the array length word in an array object's header.
 295      *
 296      * See {@code arrayOopDesc::length_offset_in_bytes()}.
 297      */
 298     public final int arrayOopDescLengthOffset() {
 299         return useCompressedClassPointers ? hubOffset + narrowKlassSize : arrayOopDescSize;
 300     }
 301 
 302     public final int arrayU1LengthOffset = getFieldOffset("Array<int>::_length", Integer.class, "int");
 303     public final int arrayU1DataOffset = getFieldOffset("Array<u1>::_data", Integer.class);
 304     public final int arrayU2DataOffset = getFieldOffset("Array<u2>::_data", Integer.class);
 305     public final int metaspaceArrayLengthOffset = getFieldOffset("Array<Klass*>::_length", Integer.class, "int");
 306     public final int metaspaceArrayBaseOffset = getFieldOffset("Array<Klass*>::_data[0]", Integer.class, "Klass*");
 307 
 308     public final int arrayClassElementOffset = getFieldOffset("ObjArrayKlass::_element_klass", Integer.class, "Klass*");
 309 
 310     public final int fieldInfoAccessFlagsOffset = getConstant("FieldInfo::access_flags_offset", Integer.class);
 311     public final int fieldInfoNameIndexOffset = getConstant("FieldInfo::name_index_offset", Integer.class);
 312     public final int fieldInfoSignatureIndexOffset = getConstant("FieldInfo::signature_index_offset", Integer.class);
 313     public final int fieldInfoInitvalIndexOffset = getConstant("FieldInfo::initval_index_offset", Integer.class);
 314     public final int fieldInfoLowPackedOffset = getConstant("FieldInfo::low_packed_offset", Integer.class);
 315     public final int fieldInfoHighPackedOffset = getConstant("FieldInfo::high_packed_offset", Integer.class);
 316     public final int fieldInfoFieldSlots = getConstant("FieldInfo::field_slots", Integer.class);
 317 
 318     public final int fieldInfoTagSize = getConstant("FIELDINFO_TAG_SIZE", Integer.class);
 319 
 320     public final int jvmAccMonitorMatch = getConstant("JVM_ACC_MONITOR_MATCH", Integer.class);
 321     public final int jvmAccHasMonitorBytecodes = getConstant("JVM_ACC_HAS_MONITOR_BYTECODES", Integer.class);
 322     public final int jvmAccHasFinalizer = getConstant("JVM_ACC_HAS_FINALIZER", Integer.class);
 323     public final int jvmAccFieldInternal = getConstant("JVM_ACC_FIELD_INTERNAL", Integer.class);
 324     public final int jvmAccFieldStable = getConstant("JVM_ACC_FIELD_STABLE", Integer.class);
 325     public final int jvmAccFieldHasGenericSignature = getConstant("JVM_ACC_FIELD_HAS_GENERIC_SIGNATURE", Integer.class);
 326     public final int jvmAccWrittenFlags = getConstant("JVM_ACC_WRITTEN_FLAGS", Integer.class);
 327     public final int jvmAccSynthetic = getConstant("JVM_ACC_SYNTHETIC", Integer.class);
 328 
 329     public final int jvmciCompileStateCanPostOnExceptionsOffset = getJvmciJvmtiCapabilityOffset("_jvmti_can_post_on_exceptions");
 330     public final int jvmciCompileStateCanPopFrameOffset = getJvmciJvmtiCapabilityOffset("_jvmti_can_pop_frame");
 331     public final int jvmciCompileStateCanAccessLocalVariablesOffset = getJvmciJvmtiCapabilityOffset("_jvmti_can_access_local_variables");
 332 
 333     // Integer.MIN_VALUE if not available
 334     private int getJvmciJvmtiCapabilityOffset(String name) {
 335         int offset = getFieldOffset("JVMCICompileState::" + name, Integer.class, "jbyte", Integer.MIN_VALUE);
 336         if (offset == Integer.MIN_VALUE) {
 337             // JDK 12
 338             offset = getFieldOffset("JVMCIEnv::" + name, Integer.class, "jbyte", Integer.MIN_VALUE);
 339         }
 340         return offset;
 341     }
 342 
 343     public final int threadTlabOffset = getFieldOffset("Thread::_tlab", Integer.class, "ThreadLocalAllocBuffer");
 344     public final int javaThreadAnchorOffset = getFieldOffset("JavaThread::_anchor", Integer.class, "JavaFrameAnchor");
 345     public final int javaThreadShouldPostOnExceptionsFlagOffset = getFieldOffset("JavaThread::_should_post_on_exceptions_flag", Integer.class, "int", Integer.MIN_VALUE);
 346     public final int threadObjectOffset = getFieldOffset("JavaThread::_threadObj", Integer.class, "oop");
 347     public final int osThreadOffset = getFieldOffset("JavaThread::_osthread", Integer.class, "OSThread*");
 348     public final int threadIsMethodHandleReturnOffset = getFieldOffset("JavaThread::_is_method_handle_return", Integer.class, "int");
 349     public final int threadObjectResultOffset = getFieldOffset("JavaThread::_vm_result", Integer.class, "oop");
 350     public final int jvmciCountersThreadOffset = getFieldOffset("JavaThread::_jvmci_counters", Integer.class, "jlong*");
 351     public final int doingUnsafeAccessOffset = getFieldOffset("JavaThread::_doing_unsafe_access", Integer.class, "bool", Integer.MAX_VALUE);
 352     public final int javaThreadReservedStackActivationOffset = versioned.javaThreadReservedStackActivationOffset;
 353 
 354     public boolean requiresReservedStackCheck(List<ResolvedJavaMethod> methods) {
 355         if (enableStackReservedZoneAddress != 0 && methods != null) {
 356             for (ResolvedJavaMethod method : methods) {
 357                 if (((HotSpotResolvedJavaMethod) method).hasReservedStackAccess()) {
 358                     return true;
 359                 }
 360             }
 361         }
 362         return false;
 363     }
 364 
 365     /**
 366      * An invalid value for {@link #rtldDefault}.
 367      */
 368     public static final long INVALID_RTLD_DEFAULT_HANDLE = 0xDEADFACE;
 369 
 370     /**
 371      * Address of the library lookup routine. The C signature of this routine is:
 372      *
 373      * <pre>
 374      *     void* (const char *filename, char *ebuf, int ebuflen)
 375      * </pre>
 376      */
 377     public final long dllLoad = getAddress("os::dll_load");
 378 
 379     /**
 380      * Address of the library lookup routine. The C signature of this routine is:
 381      *
 382      * <pre>
 383      *     void* (void* handle, const char* name)
 384      * </pre>
 385      */
 386     public final long dllLookup = getAddress("os::dll_lookup");
 387 
 388     /**
 389      * A pseudo-handle which when used as the first argument to {@link #dllLookup} means lookup will
 390      * return the first occurrence of the desired symbol using the default library search order. If
 391      * this field is {@value #INVALID_RTLD_DEFAULT_HANDLE}, then this capability is not supported on
 392      * the current platform.
 393      */
 394     public final long rtldDefault = getAddress("RTLD_DEFAULT", osName.equals("bsd") || osName.equals("linux") ? null : INVALID_RTLD_DEFAULT_HANDLE);
 395 
 396     /**
 397      * This field is used to pass exception objects into and out of the runtime system during
 398      * exception handling for compiled code.
 399      */
 400     public final int threadExceptionOopOffset = getFieldOffset("JavaThread::_exception_oop", Integer.class, "oop");
 401     public final int threadExceptionPcOffset = getFieldOffset("JavaThread::_exception_pc", Integer.class, "address");
 402     public final int pendingExceptionOffset = getFieldOffset("ThreadShadow::_pending_exception", Integer.class, "oop");
 403 
 404     public final int pendingDeoptimizationOffset = getFieldOffset("JavaThread::_pending_deoptimization", Integer.class, "int");
 405     public final int pendingTransferToInterpreterOffset = getFieldOffset("JavaThread::_pending_transfer_to_interpreter", Integer.class, "bool");
 406 
 407     private final int javaFrameAnchorLastJavaSpOffset = getFieldOffset("JavaFrameAnchor::_last_Java_sp", Integer.class, "intptr_t*");
 408     private final int javaFrameAnchorLastJavaPcOffset = getFieldOffset("JavaFrameAnchor::_last_Java_pc", Integer.class, "address");
 409 
 410     public final int pendingFailedSpeculationOffset;
 411     {
 412         String name = "JavaThread::_pending_failed_speculation";
 413         int offset = -1;
 414         try {
 415             offset = getFieldOffset(name, Integer.class, "jlong");
 416         } catch (JVMCIError e) {
 417             try {
 418                 offset = getFieldOffset(name, Integer.class, "long");
 419             } catch (JVMCIError e2) {
 420             }
 421         }
 422         if (offset == -1) {
 423             throw new JVMCIError("cannot get offset of field " + name + " with type long or jlong");
 424         }
 425         pendingFailedSpeculationOffset = offset;
 426     }
 427 
 428     public int threadLastJavaSpOffset() {
 429         return javaThreadAnchorOffset + javaFrameAnchorLastJavaSpOffset;
 430     }
 431 
 432     public int threadLastJavaPcOffset() {
 433         return javaThreadAnchorOffset + javaFrameAnchorLastJavaPcOffset;
 434     }
 435 
 436     public int threadLastJavaFpOffset() {
 437         assert osArch.equals("aarch64") || osArch.equals("amd64");
 438         return javaThreadAnchorOffset + getFieldOffset("JavaFrameAnchor::_last_Java_fp", Integer.class, "intptr_t*");
 439     }
 440 
 441     public int threadJavaFrameAnchorFlagsOffset() {
 442         assert osArch.equals("sparc");
 443         return javaThreadAnchorOffset + getFieldOffset("JavaFrameAnchor::_flags", Integer.class, "int");
 444     }
 445 
 446     public final int runtimeCallStackSize = getConstant("frame::arg_reg_save_area_bytes", Integer.class, intRequiredOnAMD64);
 447     public final int frameInterpreterFrameSenderSpOffset = getConstant("frame::interpreter_frame_sender_sp_offset", Integer.class, intRequiredOnAMD64);
 448     public final int frameInterpreterFrameLastSpOffset = getConstant("frame::interpreter_frame_last_sp_offset", Integer.class, intRequiredOnAMD64);
 449 
 450     public final int osThreadInterruptedOffset = getFieldOffset("OSThread::_interrupted", Integer.class, "jint");
 451 
 452     public final long markOopDescHashShift = getConstant("markOopDesc::hash_shift", Long.class);
 453 
 454     public final int biasedLockMaskInPlace = getConstant("markOopDesc::biased_lock_mask_in_place", Integer.class);
 455     public final int ageMaskInPlace = getConstant("markOopDesc::age_mask_in_place", Integer.class);
 456     public final int epochMaskInPlace = getConstant("markOopDesc::epoch_mask_in_place", Integer.class);
 457     public final long markOopDescHashMask = getConstant("markOopDesc::hash_mask", Long.class);
 458     public final long markOopDescHashMaskInPlace = getConstant("markOopDesc::hash_mask_in_place", Long.class);
 459 
 460     public final int unlockedMask = getConstant("markOopDesc::unlocked_value", Integer.class);
 461     public final int monitorMask = getConstant("markOopDesc::monitor_value", Integer.class, -1);
 462     public final int biasedLockPattern = getConstant("markOopDesc::biased_lock_pattern", Integer.class);
 463 
 464     // This field has no type in vmStructs.cpp
 465     public final int objectMonitorOwner = getFieldOffset("ObjectMonitor::_owner", Integer.class, null, -1);
 466     public final int objectMonitorRecursions = getFieldOffset("ObjectMonitor::_recursions", Integer.class, "intptr_t", -1);
 467     public final int objectMonitorCxq = getFieldOffset("ObjectMonitor::_cxq", Integer.class, "ObjectWaiter*", -1);
 468     public final int objectMonitorEntryList = getFieldOffset("ObjectMonitor::_EntryList", Integer.class, "ObjectWaiter*", -1);
 469     public final int objectMonitorSucc = getFieldOffset("ObjectMonitor::_succ", Integer.class, "Thread*", -1);
 470 
 471     public final int markWordNoHashInPlace = getConstant("markOopDesc::no_hash_in_place", Integer.class);
 472     public final int markWordNoLockInPlace = getConstant("markOopDesc::no_lock_in_place", Integer.class);
 473 
 474     /**
 475      * See {@code markOopDesc::prototype()}.
 476      */
 477     public long arrayPrototypeMarkWord() {
 478         return markWordNoHashInPlace | markWordNoLockInPlace;
 479     }
 480 
 481     /**
 482      * See {@code markOopDesc::copy_set_hash()}.
 483      */
 484     public long tlabIntArrayMarkWord() {
 485         long tmp = arrayPrototypeMarkWord() & (~markOopDescHashMaskInPlace);
 486         tmp |= ((0x2 & markOopDescHashMask) << markOopDescHashShift);
 487         return tmp;
 488     }
 489 
 490     /**
 491      * Mark word right shift to get identity hash code.
 492      */
 493     public final int identityHashCodeShift = getConstant("markOopDesc::hash_shift", Integer.class);
 494 
 495     /**
 496      * Identity hash code value when uninitialized.
 497      */
 498     public final int uninitializedIdentityHashCodeValue = getConstant("markOopDesc::no_hash", Integer.class);
 499 
 500     public final int methodAccessFlagsOffset = getFieldOffset("Method::_access_flags", Integer.class, "AccessFlags");
 501     public final int methodConstMethodOffset = getFieldOffset("Method::_constMethod", Integer.class, "ConstMethod*");
 502     public final int methodIntrinsicIdOffset = versioned.methodIntrinsicIdOffset;
 503     public final int methodFlagsOffset = versioned.methodFlagsOffset;
 504     public final int methodVtableIndexOffset = getFieldOffset("Method::_vtable_index", Integer.class, "int");
 505 
 506     public final int methodCountersOffset = getFieldOffset("Method::_method_counters", Integer.class, "MethodCounters*");
 507     public final int methodDataOffset = getFieldOffset("Method::_method_data", Integer.class, "MethodData*");
 508     public final int methodCompiledEntryOffset = getFieldOffset("Method::_from_compiled_entry", Integer.class, "address");
 509     public final int methodCodeOffset = versioned.methodCodeOffset;
 510 
 511     public final int methodFlagsCallerSensitive = getConstant("Method::_caller_sensitive", Integer.class);
 512     public final int methodFlagsForceInline = getConstant("Method::_force_inline", Integer.class);
 513     public final int methodFlagsDontInline = getConstant("Method::_dont_inline", Integer.class);
 514     public final int methodFlagsHidden = getConstant("Method::_hidden", Integer.class);
 515     public final int nonvirtualVtableIndex = getConstant("Method::nonvirtual_vtable_index", Integer.class);
 516     public final int invalidVtableIndex = getConstant("Method::invalid_vtable_index", Integer.class);
 517 
 518     public final int invocationCounterOffset = getFieldOffset("MethodCounters::_invocation_counter", Integer.class, "InvocationCounter");
 519     public final int backedgeCounterOffset = getFieldOffset("MethodCounters::_backedge_counter", Integer.class, "InvocationCounter");
 520     public final int invocationCounterIncrement = versioned.invocationCounterIncrement;
 521     public final int invocationCounterShift = versioned.invocationCounterShift;
 522 
 523     public final int nmethodEntryOffset = getFieldOffset("nmethod::_verified_entry_point",
 524                     Integer.class, "address");
 525     public final int compilationLevelFullOptimization = getConstant("CompLevel_full_optimization",
 526                     Integer.class);
 527 
 528     public final int constantPoolSize = getFieldValue("CompilerToVM::Data::sizeof_ConstantPool", Integer.class, "int");
 529     public final int constantPoolLengthOffset = getFieldOffset("ConstantPool::_length",
 530                     Integer.class, "int");
 531 
 532     public final int heapWordSize = getConstant("HeapWordSize", Integer.class);
 533 
 534     /**
 535      * Bit pattern that represents a non-oop. Neither the high bits nor the low bits of this value
 536      * are allowed to look like (respectively) the high or low bits of a real oop.
 537      */
 538     public final long nonOopBits = getFieldValue("CompilerToVM::Data::Universe_non_oop_bits", Long.class, "void*");
 539 
 540     public final long verifyOopCounterAddress = getFieldAddress("StubRoutines::_verify_oop_count", "jint");
 541     public final long verifyOopMask = getFieldValue("CompilerToVM::Data::Universe_verify_oop_mask", Long.class, "uintptr_t");
 542     public final long verifyOopBits = getFieldValue("CompilerToVM::Data::Universe_verify_oop_bits", Long.class, "uintptr_t");
 543 
 544     public final int logOfHRGrainBytes = getFieldValue("HeapRegion::LogOfHRGrainBytes", Integer.class, "int");
 545 
 546     public final long cardtableStartAddress = getFieldValue("CompilerToVM::Data::cardtable_start_address", Long.class, "jbyte*");
 547     public final int cardtableShift = getFieldValue("CompilerToVM::Data::cardtable_shift", Integer.class, "int");
 548 
 549     /**
 550      * This is the largest stack offset encodeable in an OopMapValue. Offsets larger than this will
 551      * throw an exception during code installation.
 552      */
 553     public final int maxOopMapStackOffset = getFieldValue("CompilerToVM::Data::_max_oop_map_stack_offset", Integer.class, "int");
 554 
 555     public final long safepointPollingAddress = getFieldValue("os::_polling_page", Long.class, "address");
 556 
 557     // G1 Collector Related Values.
 558 
 559     public final byte dirtyCardValue = versioned.dirtyCardValue;
 560     public final byte g1YoungCardValue = versioned.g1YoungCardValue;
 561 
 562     public final int g1SATBQueueMarkingOffset = versioned.g1SATBQueueMarkingOffset;
 563     public final int g1SATBQueueIndexOffset = versioned.g1SATBQueueIndexOffset;
 564     public final int g1SATBQueueBufferOffset = versioned.g1SATBQueueBufferOffset;
 565     public final int g1CardQueueIndexOffset = versioned.g1CardQueueIndexOffset;
 566     public final int g1CardQueueBufferOffset = versioned.g1CardQueueBufferOffset;
 567 
 568     public final int klassOffset = getFieldValue("java_lang_Class::_klass_offset", Integer.class, "int");
 569     public final int arrayKlassOffset = getFieldValue("java_lang_Class::_array_klass_offset", Integer.class, "int");
 570 
 571     public final int basicLockSize = getFieldValue("CompilerToVM::Data::sizeof_BasicLock", Integer.class, "int");
 572     public final int basicLockDisplacedHeaderOffset = getFieldOffset("BasicLock::_displaced_header", Integer.class, "markOop");
 573 
 574     public final int threadPollingPageOffset = getFieldOffset("Thread::_polling_page", Integer.class, "address", -1);
 575     public final int threadAllocatedBytesOffset = getFieldOffset("Thread::_allocated_bytes", Integer.class, "jlong");
 576 
 577     public final int tlabRefillWasteIncrement = getFlag("TLABWasteIncrement", Integer.class);
 578 
 579     private final int threadLocalAllocBufferStartOffset = getFieldOffset("ThreadLocalAllocBuffer::_start", Integer.class, "HeapWord*");
 580     private final int threadLocalAllocBufferEndOffset = getFieldOffset("ThreadLocalAllocBuffer::_end", Integer.class, "HeapWord*");
 581     private final int threadLocalAllocBufferTopOffset = getFieldOffset("ThreadLocalAllocBuffer::_top", Integer.class, "HeapWord*");
 582     private final int threadLocalAllocBufferPfTopOffset = getFieldOffset("ThreadLocalAllocBuffer::_pf_top", Integer.class, "HeapWord*");
 583     private final int threadLocalAllocBufferSlowAllocationsOffset = getFieldOffset("ThreadLocalAllocBuffer::_slow_allocations", Integer.class, "unsigned");
 584     private final int threadLocalAllocBufferFastRefillWasteOffset = getFieldOffset("ThreadLocalAllocBuffer::_fast_refill_waste", Integer.class, "unsigned");
 585     private final int threadLocalAllocBufferNumberOfRefillsOffset = getFieldOffset("ThreadLocalAllocBuffer::_number_of_refills", Integer.class, "unsigned");
 586     private final int threadLocalAllocBufferRefillWasteLimitOffset = getFieldOffset("ThreadLocalAllocBuffer::_refill_waste_limit", Integer.class, "size_t");
 587     private final int threadLocalAllocBufferDesiredSizeOffset = getFieldOffset("ThreadLocalAllocBuffer::_desired_size", Integer.class, "size_t");
 588 
 589     public int tlabSlowAllocationsOffset() {
 590         return threadTlabOffset + threadLocalAllocBufferSlowAllocationsOffset;
 591     }
 592 
 593     public int tlabFastRefillWasteOffset() {
 594         return threadTlabOffset + threadLocalAllocBufferFastRefillWasteOffset;
 595     }
 596 
 597     public int tlabNumberOfRefillsOffset() {
 598         return threadTlabOffset + threadLocalAllocBufferNumberOfRefillsOffset;
 599     }
 600 
 601     public int tlabRefillWasteLimitOffset() {
 602         return threadTlabOffset + threadLocalAllocBufferRefillWasteLimitOffset;
 603     }
 604 
 605     public int threadTlabSizeOffset() {
 606         return threadTlabOffset + threadLocalAllocBufferDesiredSizeOffset;
 607     }
 608 
 609     public int threadTlabStartOffset() {
 610         return threadTlabOffset + threadLocalAllocBufferStartOffset;
 611     }
 612 
 613     public int threadTlabEndOffset() {
 614         return threadTlabOffset + threadLocalAllocBufferEndOffset;
 615     }
 616 
 617     public int threadTlabTopOffset() {
 618         return threadTlabOffset + threadLocalAllocBufferTopOffset;
 619     }
 620 
 621     public int threadTlabPfTopOffset() {
 622         return threadTlabOffset + threadLocalAllocBufferPfTopOffset;
 623     }
 624 
 625     public final int tlabAlignmentReserve = getFieldValue("CompilerToVM::Data::ThreadLocalAllocBuffer_alignment_reserve", Integer.class, "size_t");
 626 
 627     public final boolean tlabStats = getFlag("TLABStats", Boolean.class);
 628 
 629     // FIXME This is only temporary until the GC code is changed.
 630     public final boolean inlineContiguousAllocationSupported = getFieldValue("CompilerToVM::Data::_supports_inline_contig_alloc", Boolean.class);
 631     public final long heapEndAddress = getFieldValue("CompilerToVM::Data::_heap_end_addr", Long.class, "HeapWord**");
 632     public final long heapTopAddress = versioned.heapTopAddress;
 633 
 634     public final boolean cmsIncrementalMode = getFlag("CMSIncrementalMode", Boolean.class, false);
 635 
 636     public final long inlineCacheMissStub = getFieldValue("CompilerToVM::Data::SharedRuntime_ic_miss_stub", Long.class, "address");
 637     public final long handleWrongMethodStub = getFieldValue("CompilerToVM::Data::SharedRuntime_handle_wrong_method_stub", Long.class, "address");
 638 
 639     public final long handleDeoptStub = getFieldValue("CompilerToVM::Data::SharedRuntime_deopt_blob_unpack", Long.class, "address");
 640     public final long uncommonTrapStub = getFieldValue("CompilerToVM::Data::SharedRuntime_deopt_blob_uncommon_trap", Long.class, "address");
 641 
 642     public final long codeCacheLowBound = versioned.codeCacheLowBound;
 643     public final long codeCacheHighBound = versioned.codeCacheHighBound;
 644 
 645     public final long aescryptEncryptBlockStub = getFieldValue("StubRoutines::_aescrypt_encryptBlock", Long.class, "address");
 646     public final long aescryptDecryptBlockStub = getFieldValue("StubRoutines::_aescrypt_decryptBlock", Long.class, "address");
 647     public final long cipherBlockChainingEncryptAESCryptStub = getFieldValue("StubRoutines::_cipherBlockChaining_encryptAESCrypt", Long.class, "address");
 648     public final long cipherBlockChainingDecryptAESCryptStub = getFieldValue("StubRoutines::_cipherBlockChaining_decryptAESCrypt", Long.class, "address");
 649     public final long updateBytesCRC32Stub = getFieldValue("StubRoutines::_updateBytesCRC32", Long.class, "address");
 650     public final long crcTableAddress = getFieldValue("StubRoutines::_crc_table_adr", Long.class, "address");
 651 
 652     public final long sha1ImplCompress = getFieldValue("StubRoutines::_sha1_implCompress", Long.class, "address", 0L);
 653     public final long sha1ImplCompressMultiBlock = getFieldValue("StubRoutines::_sha1_implCompressMB", Long.class, "address", 0L);
 654     public final long sha256ImplCompress = getFieldValue("StubRoutines::_sha256_implCompress", Long.class, "address", 0L);
 655     public final long sha256ImplCompressMultiBlock = getFieldValue("StubRoutines::_sha256_implCompressMB", Long.class, "address", 0L);
 656     public final long sha512ImplCompress = getFieldValue("StubRoutines::_sha512_implCompress", Long.class, "address", 0L);
 657     public final long sha512ImplCompressMultiBlock = getFieldValue("StubRoutines::_sha512_implCompressMB", Long.class, "address", 0L);
 658     public final long multiplyToLen = getFieldValue("StubRoutines::_multiplyToLen", Long.class, "address", longRequiredOnAMD64);
 659 
 660     public final long counterModeAESCrypt = getFieldValue("StubRoutines::_counterMode_AESCrypt", Long.class, "address", 0L);
 661     public final long ghashProcessBlocks = getFieldValue("StubRoutines::_ghash_processBlocks", Long.class, "address", 0L);
 662     public final long base64EncodeBlock = getFieldValue("StubRoutines::_base64_encodeBlock", Long.class, "address", 0L);
 663     public final long crc32cTableTddr = getFieldValue("StubRoutines::_crc32c_table_addr", Long.class, "address", 0L);
 664     public final long updateBytesCRC32C = getFieldValue("StubRoutines::_updateBytesCRC32C", Long.class, "address", 0L);
 665     public final long updateBytesAdler32 = getFieldValue("StubRoutines::_updateBytesAdler32", Long.class, "address", 0L);
 666     public final long squareToLen = getFieldValue("StubRoutines::_squareToLen", Long.class, "address", longRequiredOnAMD64);
 667     public final long mulAdd = getFieldValue("StubRoutines::_mulAdd", Long.class, "address", longRequiredOnAMD64);
 668     public final long montgomeryMultiply = getFieldValue("StubRoutines::_montgomeryMultiply", Long.class, "address", longRequiredOnAMD64);
 669     public final long montgomerySquare = getFieldValue("StubRoutines::_montgomerySquare", Long.class, "address", longRequiredOnAMD64);
 670     public final long vectorizedMismatch = getFieldValue("StubRoutines::_vectorizedMismatch", Long.class, "address", 0L);
 671 
 672     public final long throwDelayedStackOverflowErrorEntry = versioned.throwDelayedStackOverflowErrorEntry;
 673 
 674     public final long jbyteArraycopy = getFieldValue("StubRoutines::_jbyte_arraycopy", Long.class, "address");
 675     public final long jshortArraycopy = getFieldValue("StubRoutines::_jshort_arraycopy", Long.class, "address");
 676     public final long jintArraycopy = getFieldValue("StubRoutines::_jint_arraycopy", Long.class, "address");
 677     public final long jlongArraycopy = getFieldValue("StubRoutines::_jlong_arraycopy", Long.class, "address");
 678     public final long oopArraycopy = getFieldValue("StubRoutines::_oop_arraycopy", Long.class, "address");
 679     public final long oopArraycopyUninit = getFieldValue("StubRoutines::_oop_arraycopy_uninit", Long.class, "address");
 680     public final long jbyteDisjointArraycopy = getFieldValue("StubRoutines::_jbyte_disjoint_arraycopy", Long.class, "address");
 681     public final long jshortDisjointArraycopy = getFieldValue("StubRoutines::_jshort_disjoint_arraycopy", Long.class, "address");
 682     public final long jintDisjointArraycopy = getFieldValue("StubRoutines::_jint_disjoint_arraycopy", Long.class, "address");
 683     public final long jlongDisjointArraycopy = getFieldValue("StubRoutines::_jlong_disjoint_arraycopy", Long.class, "address");
 684     public final long oopDisjointArraycopy = getFieldValue("StubRoutines::_oop_disjoint_arraycopy", Long.class, "address");
 685     public final long oopDisjointArraycopyUninit = getFieldValue("StubRoutines::_oop_disjoint_arraycopy_uninit", Long.class, "address");
 686     public final long jbyteAlignedArraycopy = getFieldValue("StubRoutines::_arrayof_jbyte_arraycopy", Long.class, "address");
 687     public final long jshortAlignedArraycopy = getFieldValue("StubRoutines::_arrayof_jshort_arraycopy", Long.class, "address");
 688     public final long jintAlignedArraycopy = getFieldValue("StubRoutines::_arrayof_jint_arraycopy", Long.class, "address");
 689     public final long jlongAlignedArraycopy = getFieldValue("StubRoutines::_arrayof_jlong_arraycopy", Long.class, "address");
 690     public final long oopAlignedArraycopy = getFieldValue("StubRoutines::_arrayof_oop_arraycopy", Long.class, "address");
 691     public final long oopAlignedArraycopyUninit = getFieldValue("StubRoutines::_arrayof_oop_arraycopy_uninit", Long.class, "address");
 692     public final long jbyteAlignedDisjointArraycopy = getFieldValue("StubRoutines::_arrayof_jbyte_disjoint_arraycopy", Long.class, "address");
 693     public final long jshortAlignedDisjointArraycopy = getFieldValue("StubRoutines::_arrayof_jshort_disjoint_arraycopy", Long.class, "address");
 694     public final long jintAlignedDisjointArraycopy = getFieldValue("StubRoutines::_arrayof_jint_disjoint_arraycopy", Long.class, "address");
 695     public final long jlongAlignedDisjointArraycopy = getFieldValue("StubRoutines::_arrayof_jlong_disjoint_arraycopy", Long.class, "address");
 696     public final long oopAlignedDisjointArraycopy = getFieldValue("StubRoutines::_arrayof_oop_disjoint_arraycopy", Long.class, "address");
 697     public final long oopAlignedDisjointArraycopyUninit = getFieldValue("StubRoutines::_arrayof_oop_disjoint_arraycopy_uninit", Long.class, "address");
 698     public final long checkcastArraycopy = getFieldValue("StubRoutines::_checkcast_arraycopy", Long.class, "address");
 699     public final long checkcastArraycopyUninit = getFieldValue("StubRoutines::_checkcast_arraycopy_uninit", Long.class, "address");
 700     public final long unsafeArraycopy = getFieldValue("StubRoutines::_unsafe_arraycopy", Long.class, "address");
 701     public final long genericArraycopy = getFieldValue("StubRoutines::_generic_arraycopy", Long.class, "address");
 702 
 703     // Allocation stubs that throw an exception when allocation fails
 704     public final long newInstanceAddress = getAddress("JVMCIRuntime::new_instance");
 705     public final long newArrayAddress = getAddress("JVMCIRuntime::new_array");
 706     public final long newMultiArrayAddress = getAddress("JVMCIRuntime::new_multi_array");
 707     public final long dynamicNewInstanceAddress = getAddress("JVMCIRuntime::dynamic_new_instance");
 708 
 709     // Allocation stubs that return null when allocation fails
 710     public final long newInstanceOrNullAddress = getAddress("JVMCIRuntime::new_instance_or_null", 0L);
 711     public final long newArrayOrNullAddress = getAddress("JVMCIRuntime::new_array_or_null", 0L);
 712     public final long newMultiArrayOrNullAddress = getAddress("JVMCIRuntime::new_multi_array_or_null", 0L);
 713     public final long dynamicNewInstanceOrNullAddress = getAddress("JVMCIRuntime::dynamic_new_instance_or_null", 0L);
 714 
 715     public boolean areNullAllocationStubsAvailable() {
 716         return newInstanceOrNullAddress != 0L;
 717     }
 718 
 719     /**
 720      * Checks that HotSpot implements all or none of the allocate-or-null stubs.
 721      */
 722     private boolean checkNullAllocationStubs() {
 723         if (newInstanceOrNullAddress == 0L) {
 724             assert newArrayOrNullAddress == 0L;
 725             assert newMultiArrayOrNullAddress == 0L;
 726             assert dynamicNewInstanceOrNullAddress == 0L;
 727         } else {
 728             assert newArrayOrNullAddress != 0L;
 729             assert newMultiArrayOrNullAddress != 0L;
 730             assert dynamicNewInstanceOrNullAddress != 0L;
 731         }
 732         return true;
 733     }
 734 
 735     public final long threadIsInterruptedAddress = getAddress("JVMCIRuntime::thread_is_interrupted");
 736     public final long vmMessageAddress = getAddress("JVMCIRuntime::vm_message");
 737     public final long identityHashCodeAddress = getAddress("JVMCIRuntime::identity_hash_code");
 738     public final long exceptionHandlerForPcAddress = getAddress("JVMCIRuntime::exception_handler_for_pc");
 739     public final long monitorenterAddress = getAddress("JVMCIRuntime::monitorenter");
 740     public final long monitorexitAddress = getAddress("JVMCIRuntime::monitorexit");
 741     public final long notifyAddress = getAddress("JVMCIRuntime::object_notify", 0L);
 742     public final long notifyAllAddress = getAddress("JVMCIRuntime::object_notifyAll", 0L);
 743     public final long throwAndPostJvmtiExceptionAddress = getAddress("JVMCIRuntime::throw_and_post_jvmti_exception");
 744     public final long throwKlassExternalNameExceptionAddress = getAddress("JVMCIRuntime::throw_klass_external_name_exception");
 745     public final long throwClassCastExceptionAddress = getAddress("JVMCIRuntime::throw_class_cast_exception");
 746     public final long logPrimitiveAddress = getAddress("JVMCIRuntime::log_primitive");
 747     public final long logObjectAddress = getAddress("JVMCIRuntime::log_object");
 748     public final long logPrintfAddress = getAddress("JVMCIRuntime::log_printf");
 749     public final long vmErrorAddress = getAddress("JVMCIRuntime::vm_error");
 750     public final long loadAndClearExceptionAddress = getAddress("JVMCIRuntime::load_and_clear_exception");
 751     public final long writeBarrierPreAddress = getAddress("JVMCIRuntime::write_barrier_pre");
 752     public final long writeBarrierPostAddress = getAddress("JVMCIRuntime::write_barrier_post");
 753     public final long validateObject = getAddress("JVMCIRuntime::validate_object");
 754 
 755     public final long testDeoptimizeCallInt = getAddress("JVMCIRuntime::test_deoptimize_call_int");
 756 
 757     public final long registerFinalizerAddress = getAddress("SharedRuntime::register_finalizer");
 758     public final long exceptionHandlerForReturnAddressAddress = getAddress("SharedRuntime::exception_handler_for_return_address");
 759     public final long osrMigrationEndAddress = getAddress("SharedRuntime::OSR_migration_end");
 760     public final long enableStackReservedZoneAddress = versioned.enableStackReservedZoneAddress;
 761 
 762     public final long javaTimeMillisAddress = getAddress("os::javaTimeMillis");
 763     public final long javaTimeNanosAddress = getAddress("os::javaTimeNanos");
 764     public final long arithmeticSinAddress = getFieldValue("CompilerToVM::Data::dsin", Long.class, "address");
 765     public final long arithmeticCosAddress = getFieldValue("CompilerToVM::Data::dcos", Long.class, "address");
 766     public final long arithmeticTanAddress = getFieldValue("CompilerToVM::Data::dtan", Long.class, "address");
 767     public final long arithmeticExpAddress = getFieldValue("CompilerToVM::Data::dexp", Long.class, "address");
 768     public final long arithmeticLogAddress = getFieldValue("CompilerToVM::Data::dlog", Long.class, "address");
 769     public final long arithmeticLog10Address = getFieldValue("CompilerToVM::Data::dlog10", Long.class, "address");
 770     public final long arithmeticPowAddress = getFieldValue("CompilerToVM::Data::dpow", Long.class, "address");
 771 
 772     public final long fremAddress = getAddress("SharedRuntime::frem");
 773     public final long dremAddress = getAddress("SharedRuntime::drem");
 774 
 775     public final int jvmciCountersSize = getFlag("JVMCICounterSize", Integer.class);
 776 
 777     public final long deoptimizationFetchUnrollInfo = getAddress("Deoptimization::fetch_unroll_info");
 778     public final long deoptimizationUncommonTrap = getAddress("Deoptimization::uncommon_trap");
 779     public final long deoptimizationUnpackFrames = getAddress("Deoptimization::unpack_frames");
 780 
 781     public final int deoptimizationUnpackDeopt = getConstant("Deoptimization::Unpack_deopt", Integer.class);
 782     public final int deoptimizationUnpackException = getConstant("Deoptimization::Unpack_exception", Integer.class);
 783     public final int deoptimizationUnpackUncommonTrap = getConstant("Deoptimization::Unpack_uncommon_trap", Integer.class);
 784     public final int deoptimizationUnpackReexecute = getConstant("Deoptimization::Unpack_reexecute", Integer.class);
 785 
 786     public final int deoptimizationUnrollBlockSizeOfDeoptimizedFrameOffset = getFieldOffset("Deoptimization::UnrollBlock::_size_of_deoptimized_frame", Integer.class, "int");
 787     public final int deoptimizationUnrollBlockCallerAdjustmentOffset = getFieldOffset("Deoptimization::UnrollBlock::_caller_adjustment", Integer.class, "int");
 788     public final int deoptimizationUnrollBlockNumberOfFramesOffset = getFieldOffset("Deoptimization::UnrollBlock::_number_of_frames", Integer.class, "int");
 789     public final int deoptimizationUnrollBlockTotalFrameSizesOffset = getFieldOffset("Deoptimization::UnrollBlock::_total_frame_sizes", Integer.class, "int");
 790     public final int deoptimizationUnrollBlockUnpackKindOffset = getFieldOffset("Deoptimization::UnrollBlock::_unpack_kind", Integer.class, "int");
 791     public final int deoptimizationUnrollBlockFrameSizesOffset = getFieldOffset("Deoptimization::UnrollBlock::_frame_sizes", Integer.class, "intptr_t*");
 792     public final int deoptimizationUnrollBlockFramePcsOffset = getFieldOffset("Deoptimization::UnrollBlock::_frame_pcs", Integer.class, "address*");
 793     public final int deoptimizationUnrollBlockInitialInfoOffset = getFieldOffset("Deoptimization::UnrollBlock::_initial_info", Integer.class, "intptr_t");
 794 
 795     // Checkstyle: stop
 796     public final int MARKID_VERIFIED_ENTRY = getConstant("CodeInstaller::VERIFIED_ENTRY", Integer.class);
 797     public final int MARKID_UNVERIFIED_ENTRY = getConstant("CodeInstaller::UNVERIFIED_ENTRY", Integer.class);
 798     public final int MARKID_OSR_ENTRY = getConstant("CodeInstaller::OSR_ENTRY", Integer.class);
 799     public final int MARKID_EXCEPTION_HANDLER_ENTRY = getConstant("CodeInstaller::EXCEPTION_HANDLER_ENTRY", Integer.class);
 800     public final int MARKID_DEOPT_HANDLER_ENTRY = getConstant("CodeInstaller::DEOPT_HANDLER_ENTRY", Integer.class);
 801     public final int MARKID_INVOKEINTERFACE = getConstant("CodeInstaller::INVOKEINTERFACE", Integer.class);
 802     public final int MARKID_INVOKEVIRTUAL = getConstant("CodeInstaller::INVOKEVIRTUAL", Integer.class);
 803     public final int MARKID_INVOKESTATIC = getConstant("CodeInstaller::INVOKESTATIC", Integer.class);
 804     public final int MARKID_INVOKESPECIAL = getConstant("CodeInstaller::INVOKESPECIAL", Integer.class);
 805     public final int MARKID_INLINE_INVOKE = getConstant("CodeInstaller::INLINE_INVOKE", Integer.class);
 806     public final int MARKID_POLL_NEAR = getConstant("CodeInstaller::POLL_NEAR", Integer.class);
 807     public final int MARKID_POLL_RETURN_NEAR = getConstant("CodeInstaller::POLL_RETURN_NEAR", Integer.class);
 808     public final int MARKID_POLL_FAR = getConstant("CodeInstaller::POLL_FAR", Integer.class);
 809     public final int MARKID_POLL_RETURN_FAR = getConstant("CodeInstaller::POLL_RETURN_FAR", Integer.class);
 810     public final int MARKID_CARD_TABLE_SHIFT = getConstant("CodeInstaller::CARD_TABLE_SHIFT", Integer.class);
 811     public final int MARKID_CARD_TABLE_ADDRESS = getConstant("CodeInstaller::CARD_TABLE_ADDRESS", Integer.class);
 812     public final int MARKID_INVOKE_INVALID = getConstant("CodeInstaller::INVOKE_INVALID", Integer.class);
 813 
 814     /**
 815      * The following constants are given default values here since they are missing in the native
 816      * JVMCI-8 code but are still required for {@link GraalHotSpotVMConfigNode#canonical} to work in
 817      * a JDK8 environment.
 818      */
 819     public final int MARKID_HEAP_TOP_ADDRESS = getConstant("CodeInstaller::HEAP_TOP_ADDRESS", Integer.class, 17);
 820     public final int MARKID_HEAP_END_ADDRESS = getConstant("CodeInstaller::HEAP_END_ADDRESS", Integer.class, 18);
 821     public final int MARKID_NARROW_KLASS_BASE_ADDRESS = getConstant("CodeInstaller::NARROW_KLASS_BASE_ADDRESS", Integer.class, 19);
 822     public final int MARKID_NARROW_OOP_BASE_ADDRESS = getConstant("CodeInstaller::NARROW_OOP_BASE_ADDRESS", Integer.class, 20);
 823     public final int MARKID_CRC_TABLE_ADDRESS = getConstant("CodeInstaller::CRC_TABLE_ADDRESS", Integer.class, 21);
 824     public final int MARKID_LOG_OF_HEAP_REGION_GRAIN_BYTES = getConstant("CodeInstaller::LOG_OF_HEAP_REGION_GRAIN_BYTES", Integer.class, 22);
 825     public final int MARKID_INLINE_CONTIGUOUS_ALLOCATION_SUPPORTED = getConstant("CodeInstaller::INLINE_CONTIGUOUS_ALLOCATION_SUPPORTED", Integer.class, 23);
 826 
 827     // Checkstyle: resume
 828 
 829     protected boolean check() {
 830         for (Field f : getClass().getDeclaredFields()) {
 831             int modifiers = f.getModifiers();
 832             if (Modifier.isPublic(modifiers) && !Modifier.isStatic(modifiers)) {
 833                 assert Modifier.isFinal(modifiers) : "field should be final: " + f;
 834             }
 835         }
 836 
 837         assert codeEntryAlignment > 0 : codeEntryAlignment;
 838         assert checkNullAllocationStubs();
 839         return true;
 840     }
 841 }