1 /*
   2  * Copyright (c) 2011, 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 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.vm.ci.services.Services;
  29 import jdk.internal.misc.Unsafe;
  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     }
  50 
  51     /**
  52      * Gets the host architecture name for the purpose of finding the corresponding
  53      * {@linkplain HotSpotJVMCIBackendFactory backend}.
  54      */
  55     String getHostArchitectureName() {
  56         String arch = Services.getSavedProperty("os.arch");
  57         switch (arch) {
  58             case "x86_64":
  59                 return "amd64";
  60 
  61             default:
  62                 return arch;
  63         }
  64     }
  65 
  66     final boolean useDeferredInitBarriers = getFlag("ReduceInitialCardMarks", Boolean.class);
  67 
  68     final boolean useCompressedOops = getFlag("UseCompressedOops", Boolean.class);
  69 
  70     final int objectAlignment = getFlag("ObjectAlignmentInBytes", Integer.class);
  71 
  72     final int hubOffset = getFieldOffset("oopDesc::_metadata._klass", Integer.class, "Klass*");
  73 
  74     final int prototypeMarkWordOffset = getFieldOffset("Klass::_prototype_header", Integer.class, "markWord");
  75     final int subklassOffset = getFieldOffset("Klass::_subklass", Integer.class, "Klass*");
  76     final int superOffset = getFieldOffset("Klass::_super", Integer.class, "Klass*");
  77     final int nextSiblingOffset = getFieldOffset("Klass::_next_sibling", Integer.class, "Klass*");
  78     final int superCheckOffsetOffset = getFieldOffset("Klass::_super_check_offset", Integer.class, "juint");
  79     final int secondarySuperCacheOffset = getFieldOffset("Klass::_secondary_super_cache", Integer.class, "Klass*");
  80 
  81     final int classLoaderDataOffset = getFieldOffset("Klass::_class_loader_data", Integer.class, "ClassLoaderData*");
  82 
  83     /**
  84      * The offset of the _java_mirror field (of type {@link Class}) in a Klass.
  85      */
  86     final int javaMirrorOffset = getFieldOffset("Klass::_java_mirror", Integer.class, "OopHandle");
  87 
  88     final int klassAccessFlagsOffset = getFieldOffset("Klass::_access_flags", Integer.class, "AccessFlags");
  89     final int klassLayoutHelperOffset = getFieldOffset("Klass::_layout_helper", Integer.class, "jint");
  90 
  91     final int klassLayoutHelperNeutralValue = getConstant("Klass::_lh_neutral_value", Integer.class);
  92     final int klassLayoutHelperInstanceSlowPathBit = getConstant("Klass::_lh_instance_slow_path_bit", Integer.class);
  93 
  94     final int vtableEntrySize = getFieldValue("CompilerToVM::Data::sizeof_vtableEntry", Integer.class, "int");
  95     final int vtableEntryMethodOffset = getFieldOffset("vtableEntry::_method", Integer.class, "Method*");
  96 
  97     final int instanceKlassInitStateOffset = getFieldOffset("InstanceKlass::_init_state", Integer.class, "u1");
  98     final int instanceKlassConstantsOffset = getFieldOffset("InstanceKlass::_constants", Integer.class, "ConstantPool*");
  99     final int instanceKlassFieldsOffset = getFieldOffset("InstanceKlass::_fields", Integer.class, "Array<u2>*");
 100     final int instanceKlassAnnotationsOffset = getFieldOffset("InstanceKlass::_annotations", Integer.class, "Annotations*");
 101     final int instanceKlassMiscFlagsOffset = getFieldOffset("InstanceKlass::_misc_flags", Integer.class, "u2");
 102     final int klassVtableStartOffset = getFieldValue("CompilerToVM::Data::Klass_vtable_start_offset", Integer.class, "int");
 103     final int klassVtableLengthOffset = getFieldValue("CompilerToVM::Data::Klass_vtable_length_offset", Integer.class, "int");
 104 
 105     final int instanceKlassStateLinked = getConstant("InstanceKlass::linked", Integer.class);
 106     final int instanceKlassStateFullyInitialized = getConstant("InstanceKlass::fully_initialized", Integer.class);
 107     final int instanceKlassStateBeingInitialized = getConstant("InstanceKlass::being_initialized", Integer.class);
 108     final int instanceKlassMiscIsUnsafeAnonymous = getConstant("InstanceKlass::_misc_is_unsafe_anonymous", Integer.class);
 109 
 110     final int annotationsFieldAnnotationsOffset = getFieldOffset("Annotations::_fields_annotations", Integer.class, "Array<AnnotationArray*>*");
 111     final int fieldsAnnotationsBaseOffset = getFieldValue("CompilerToVM::Data::_fields_annotations_base_offset", Integer.class, "int");
 112 
 113     final int arrayU1LengthOffset = getFieldOffset("Array<int>::_length", Integer.class, "int");
 114     final int arrayU1DataOffset = getFieldOffset("Array<u1>::_data", Integer.class);
 115     final int arrayU2DataOffset = getFieldOffset("Array<u2>::_data", Integer.class);
 116 
 117     final int fieldInfoAccessFlagsOffset = getConstant("FieldInfo::access_flags_offset", Integer.class);
 118     final int fieldInfoNameIndexOffset = getConstant("FieldInfo::name_index_offset", Integer.class);
 119     final int fieldInfoSignatureIndexOffset = getConstant("FieldInfo::signature_index_offset", Integer.class);
 120     final int fieldInfoLowPackedOffset = getConstant("FieldInfo::low_packed_offset", Integer.class);
 121     final int fieldInfoHighPackedOffset = getConstant("FieldInfo::high_packed_offset", Integer.class);
 122     final int fieldInfoFieldSlots = getConstant("FieldInfo::field_slots", Integer.class);
 123 
 124     final int fieldInfoTagSize = getConstant("FIELDINFO_TAG_SIZE", Integer.class);
 125 
 126     final int jvmAccHasFinalizer = getConstant("JVM_ACC_HAS_FINALIZER", Integer.class);
 127     final int jvmAccFieldInternal = getConstant("JVM_ACC_FIELD_INTERNAL", Integer.class);
 128     final int jvmAccFieldStable = getConstant("JVM_ACC_FIELD_STABLE", Integer.class);
 129     final int jvmAccFieldHasGenericSignature = getConstant("JVM_ACC_FIELD_HAS_GENERIC_SIGNATURE", Integer.class);
 130     final int jvmAccIsCloneableFast = getConstant("JVM_ACC_IS_CLONEABLE_FAST", Integer.class);
 131 
 132     // These modifiers are not public in Modifier so we get them via vmStructs.
 133     final int jvmAccSynthetic = getConstant("JVM_ACC_SYNTHETIC", Integer.class);
 134     final int jvmAccAnnotation = getConstant("JVM_ACC_ANNOTATION", Integer.class);
 135     final int jvmAccBridge = getConstant("JVM_ACC_BRIDGE", Integer.class);
 136     final int jvmAccVarargs = getConstant("JVM_ACC_VARARGS", Integer.class);
 137     final int jvmAccEnum = getConstant("JVM_ACC_ENUM", Integer.class);
 138     final int jvmAccInterface = getConstant("JVM_ACC_INTERFACE", Integer.class);
 139 
 140     // This is only valid on AMD64.
 141     final int runtimeCallStackSize = getConstant("frame::arg_reg_save_area_bytes", Integer.class, osArch.equals("amd64") ? null : 0);
 142 
 143     private final int markWordNoHashInPlace = getConstant("markWord::no_hash_in_place", Integer.class);
 144     private final int markWordNoLockInPlace = getConstant("markWord::no_lock_in_place", Integer.class);
 145 
 146     /**
 147      * See {@code markWord::prototype()}.
 148      */
 149     long arrayPrototypeMarkWord() {
 150         return markWordNoHashInPlace | markWordNoLockInPlace;
 151     }
 152 
 153     final int methodAccessFlagsOffset = getFieldOffset("Method::_access_flags", Integer.class, "AccessFlags");
 154     final int methodConstMethodOffset = getFieldOffset("Method::_constMethod", Integer.class, "ConstMethod*");
 155     final int methodIntrinsicIdOffset = getFieldOffset("Method::_intrinsic_id", Integer.class, "u2");
 156     final int methodFlagsOffset = getFieldOffset("Method::_flags", Integer.class, "u2");
 157     final int methodVtableIndexOffset = getFieldOffset("Method::_vtable_index", Integer.class, "int");
 158 
 159     final int methodDataOffset = getFieldOffset("Method::_method_data", Integer.class, "MethodData*");
 160     final int methodCodeOffset = getFieldOffset("Method::_code", Integer.class, "CompiledMethod*");
 161 
 162     final int methodFlagsCallerSensitive = getConstant("Method::_caller_sensitive", Integer.class);
 163     final int methodFlagsForceInline = getConstant("Method::_force_inline", Integer.class);
 164     final int methodFlagsIntrinsicCandidate = getConstant("Method::_intrinsic_candidate", Integer.class);
 165     final int methodFlagsDontInline = getConstant("Method::_dont_inline", Integer.class);
 166     final int methodFlagsReservedStackAccess = getConstant("Method::_reserved_stack_access", Integer.class);
 167     final int nonvirtualVtableIndex = getConstant("Method::nonvirtual_vtable_index", Integer.class);
 168     final int invalidVtableIndex = getConstant("Method::invalid_vtable_index", Integer.class);
 169 
 170     final int methodDataSize = getFieldOffset("MethodData::_size", Integer.class, "int");
 171     final int methodDataDataSize = getFieldOffset("MethodData::_data_size", Integer.class, "int");
 172     final int methodDataOopDataOffset = getFieldOffset("MethodData::_data[0]", Integer.class, "intptr_t");
 173     final int methodDataOopTrapHistoryOffset = getFieldOffset("MethodData::_trap_hist._array[0]", Integer.class, "u1");
 174     final int methodDataIRSizeOffset = getFieldOffset("MethodData::_jvmci_ir_size", Integer.class, "int");
 175 
 176     final int methodDataDecompiles = getFieldOffset("MethodData::_nof_decompiles", Integer.class, "uint");
 177     final int methodDataOverflowRecompiles = getFieldOffset("MethodData::_nof_overflow_recompiles", Integer.class, "uint");
 178     final int methodDataOverflowTraps = getFieldOffset("MethodData::_nof_overflow_traps", Integer.class, "uint");
 179 
 180     final int nmethodCompLevelOffset = getFieldOffset("nmethod::_comp_level", Integer.class, "int");
 181 
 182     final int compilationLevelNone = getConstant("CompLevel_none", Integer.class);
 183     final int compilationLevelSimple = getConstant("CompLevel_simple", Integer.class);
 184     final int compilationLevelLimitedProfile = getConstant("CompLevel_limited_profile", Integer.class);
 185     final int compilationLevelFullProfile = getConstant("CompLevel_full_profile", Integer.class);
 186     final int compilationLevelFullOptimization = getConstant("CompLevel_full_optimization", Integer.class);
 187 
 188     final int compLevelAdjustmentNone = getConstant("JVMCIRuntime::none", Integer.class);
 189     final int compLevelAdjustmentByHolder = getConstant("JVMCIRuntime::by_holder", Integer.class);
 190     final int compLevelAdjustmentByFullSignature = getConstant("JVMCIRuntime::by_full_signature", Integer.class);
 191 
 192     final int invocationEntryBci = getConstant("InvocationEntryBci", Integer.class);
 193 
 194     final int extraStackEntries = getFieldValue("CompilerToVM::Data::Method_extra_stack_entries", Integer.class, "int");
 195 
 196     final int constMethodConstantsOffset = getFieldOffset("ConstMethod::_constants", Integer.class, "ConstantPool*");
 197     final int constMethodFlagsOffset = getFieldOffset("ConstMethod::_flags", Integer.class, "u2");
 198     final int constMethodCodeSizeOffset = getFieldOffset("ConstMethod::_code_size", Integer.class, "u2");
 199     final int constMethodNameIndexOffset = getFieldOffset("ConstMethod::_name_index", Integer.class, "u2");
 200     final int constMethodSignatureIndexOffset = getFieldOffset("ConstMethod::_signature_index", Integer.class, "u2");
 201     final int constMethodMethodIdnumOffset = getFieldOffset("ConstMethod::_method_idnum", Integer.class, "u2");
 202     final int constMethodMaxStackOffset = getFieldOffset("ConstMethod::_max_stack", Integer.class, "u2");
 203     final int methodMaxLocalsOffset = getFieldOffset("ConstMethod::_max_locals", Integer.class, "u2");
 204 
 205     final int constMethodHasLineNumberTable = getConstant("ConstMethod::_has_linenumber_table", Integer.class);
 206     final int constMethodHasLocalVariableTable = getConstant("ConstMethod::_has_localvariable_table", Integer.class);
 207     final int constMethodHasMethodAnnotations = getConstant("ConstMethod::_has_method_annotations", Integer.class);
 208     final int constMethodHasParameterAnnotations = getConstant("ConstMethod::_has_parameter_annotations", Integer.class);
 209     final int constMethodHasExceptionTable = getConstant("ConstMethod::_has_exception_table", Integer.class);
 210 
 211     final int exceptionTableElementSize = getFieldValue("CompilerToVM::Data::sizeof_ExceptionTableElement", Integer.class, "int");
 212     final int exceptionTableElementStartPcOffset = getFieldOffset("ExceptionTableElement::start_pc", Integer.class, "u2");
 213     final int exceptionTableElementEndPcOffset = getFieldOffset("ExceptionTableElement::end_pc", Integer.class, "u2");
 214     final int exceptionTableElementHandlerPcOffset = getFieldOffset("ExceptionTableElement::handler_pc", Integer.class, "u2");
 215     final int exceptionTableElementCatchTypeIndexOffset = getFieldOffset("ExceptionTableElement::catch_type_index", Integer.class, "u2");
 216 
 217     final int localVariableTableElementSize = getFieldValue("CompilerToVM::Data::sizeof_LocalVariableTableElement", Integer.class, "int");
 218     final int localVariableTableElementStartBciOffset = getFieldOffset("LocalVariableTableElement::start_bci", Integer.class, "u2");
 219     final int localVariableTableElementLengthOffset = getFieldOffset("LocalVariableTableElement::length", Integer.class, "u2");
 220     final int localVariableTableElementNameCpIndexOffset = getFieldOffset("LocalVariableTableElement::name_cp_index", Integer.class, "u2");
 221     final int localVariableTableElementDescriptorCpIndexOffset = getFieldOffset("LocalVariableTableElement::descriptor_cp_index", Integer.class, "u2");
 222     final int localVariableTableElementSlotOffset = getFieldOffset("LocalVariableTableElement::slot", Integer.class, "u2");
 223 
 224     final int constantPoolSize = getFieldValue("CompilerToVM::Data::sizeof_ConstantPool", Integer.class, "int");
 225     final int constantPoolTagsOffset = getFieldOffset("ConstantPool::_tags", Integer.class, "Array<u1>*");
 226     final int constantPoolHolderOffset = getFieldOffset("ConstantPool::_pool_holder", Integer.class, "InstanceKlass*");
 227     final int constantPoolLengthOffset = getFieldOffset("ConstantPool::_length", Integer.class, "int");
 228     final int constantPoolFlagsOffset = getFieldOffset("ConstantPool::_flags", Integer.class, "u2");
 229 
 230     final int constantPoolCpCacheIndexTag = getConstant("ConstantPool::CPCACHE_INDEX_TAG", Integer.class);
 231     final int constantPoolHasDynamicConstant = getConstant("ConstantPool::_has_dynamic_constant", Integer.class);
 232     final int constantPoolSourceFileNameIndexOffset = getFieldOffset("ConstantPool::_source_file_name_index", Integer.class, "u2");
 233 
 234     final int jvmConstantUtf8 = getConstant("JVM_CONSTANT_Utf8", Integer.class);
 235     final int jvmConstantInteger = getConstant("JVM_CONSTANT_Integer", Integer.class);
 236     final int jvmConstantLong = getConstant("JVM_CONSTANT_Long", Integer.class);
 237     final int jvmConstantFloat = getConstant("JVM_CONSTANT_Float", Integer.class);
 238     final int jvmConstantDouble = getConstant("JVM_CONSTANT_Double", Integer.class);
 239     final int jvmConstantClass = getConstant("JVM_CONSTANT_Class", Integer.class);
 240     final int jvmConstantUnresolvedClass = getConstant("JVM_CONSTANT_UnresolvedClass", Integer.class);
 241     final int jvmConstantUnresolvedClassInError = getConstant("JVM_CONSTANT_UnresolvedClassInError", Integer.class);
 242     final int jvmConstantString = getConstant("JVM_CONSTANT_String", Integer.class);
 243     final int jvmConstantFieldref = getConstant("JVM_CONSTANT_Fieldref", Integer.class);
 244     final int jvmConstantMethodref = getConstant("JVM_CONSTANT_Methodref", Integer.class);
 245     final int jvmConstantInterfaceMethodref = getConstant("JVM_CONSTANT_InterfaceMethodref", Integer.class);
 246     final int jvmConstantNameAndType = getConstant("JVM_CONSTANT_NameAndType", Integer.class);
 247     final int jvmConstantMethodHandle = getConstant("JVM_CONSTANT_MethodHandle", Integer.class);
 248     final int jvmConstantMethodHandleInError = getConstant("JVM_CONSTANT_MethodHandleInError", Integer.class);
 249     final int jvmConstantMethodType = getConstant("JVM_CONSTANT_MethodType", Integer.class);
 250     final int jvmConstantMethodTypeInError = getConstant("JVM_CONSTANT_MethodTypeInError", Integer.class);
 251     final int jvmConstantInvokeDynamic = getConstant("JVM_CONSTANT_InvokeDynamic", Integer.class);
 252 
 253     final int jvmConstantExternalMax = getConstant("JVM_CONSTANT_ExternalMax", Integer.class);
 254     final int jvmConstantInternalMin = getConstant("JVM_CONSTANT_InternalMin", Integer.class);
 255     final int jvmConstantInternalMax = getConstant("JVM_CONSTANT_InternalMax", Integer.class);
 256 
 257     final int heapWordSize = getConstant("HeapWordSize", Integer.class);
 258 
 259     final long vmSymbolsSymbols = getFieldAddress("vmSymbols::_symbols[0]", "Symbol*");
 260     final int vmSymbolsFirstSID = getConstant("vmSymbols::FIRST_SID", Integer.class);
 261     final int vmSymbolsSIDLimit = getConstant("vmSymbols::SID_LIMIT", Integer.class);
 262 
 263     final long symbolInit = getFieldValue("CompilerToVM::Data::symbol_init", Long.class);
 264     final long symbolClinit = getFieldValue("CompilerToVM::Data::symbol_clinit", Long.class);
 265 
 266     /**
 267      * Returns the symbol in the {@code vmSymbols} table at position {@code index} as a
 268      * {@link String}.
 269      *
 270      * @param index position in the symbol table
 271      * @return the symbol at position id
 272      */
 273     String symbolAt(int index) {
 274         HotSpotJVMCIRuntime runtime = runtime();
 275         assert vmSymbolsFirstSID <= index && index < vmSymbolsSIDLimit : "index " + index + " is out of bounds";
 276         int offset = index * Unsafe.ADDRESS_SIZE;
 277         return runtime.getCompilerToVM().getSymbol(UNSAFE.getAddress(vmSymbolsSymbols + offset));
 278     }
 279 
 280     final int universeBaseVtableSize = getFieldValue("CompilerToVM::Data::Universe_base_vtable_size", Integer.class, "int");
 281 
 282     final int baseVtableLength() {
 283         return universeBaseVtableSize / (vtableEntrySize / heapWordSize);
 284     }
 285 
 286     final int klassOffset = getFieldValue("java_lang_Class::_klass_offset", Integer.class, "int");
 287 
 288     /**
 289      * The DataLayout header size is the same as the cell size.
 290      */
 291     final int dataLayoutHeaderSize = getConstant("DataLayout::cell_size", Integer.class);
 292     final int dataLayoutTagOffset = getFieldOffset("DataLayout::_header._struct._tag", Integer.class, "u1");
 293     final int dataLayoutFlagsOffset = getFieldOffset("DataLayout::_header._struct._flags", Integer.class, "u1");
 294     final int dataLayoutBCIOffset = getFieldOffset("DataLayout::_header._struct._bci", Integer.class, "u2");
 295     final int dataLayoutCellSize = getConstant("DataLayout::cell_size", Integer.class);
 296 
 297     final int dataLayoutNoTag = getConstant("DataLayout::no_tag", Integer.class);
 298     final int dataLayoutBitDataTag = getConstant("DataLayout::bit_data_tag", Integer.class);
 299     final int dataLayoutCounterDataTag = getConstant("DataLayout::counter_data_tag", Integer.class);
 300     final int dataLayoutJumpDataTag = getConstant("DataLayout::jump_data_tag", Integer.class);
 301     final int dataLayoutReceiverTypeDataTag = getConstant("DataLayout::receiver_type_data_tag", Integer.class);
 302     final int dataLayoutVirtualCallDataTag = getConstant("DataLayout::virtual_call_data_tag", Integer.class);
 303     final int dataLayoutRetDataTag = getConstant("DataLayout::ret_data_tag", Integer.class);
 304     final int dataLayoutBranchDataTag = getConstant("DataLayout::branch_data_tag", Integer.class);
 305     final int dataLayoutMultiBranchDataTag = getConstant("DataLayout::multi_branch_data_tag", Integer.class);
 306     final int dataLayoutArgInfoDataTag = getConstant("DataLayout::arg_info_data_tag", Integer.class);
 307     final int dataLayoutCallTypeDataTag = getConstant("DataLayout::call_type_data_tag", Integer.class);
 308     final int dataLayoutVirtualCallTypeDataTag = getConstant("DataLayout::virtual_call_type_data_tag", Integer.class);
 309     final int dataLayoutParametersTypeDataTag = getConstant("DataLayout::parameters_type_data_tag", Integer.class);
 310     final int dataLayoutSpeculativeTrapDataTag = getConstant("DataLayout::speculative_trap_data_tag", Integer.class);
 311 
 312     final int bciProfileWidth = getFlag("BciProfileWidth", Integer.class);
 313     final int typeProfileWidth = getFlag("TypeProfileWidth", Integer.class);
 314     final int methodProfileWidth = getFlag("MethodProfileWidth", Integer.class, 0);
 315 
 316     final int deoptReasonNone = getConstant("Deoptimization::Reason_none", Integer.class);
 317     final int deoptReasonNullCheck = getConstant("Deoptimization::Reason_null_check", Integer.class);
 318     final int deoptReasonRangeCheck = getConstant("Deoptimization::Reason_range_check", Integer.class);
 319     final int deoptReasonClassCheck = getConstant("Deoptimization::Reason_class_check", Integer.class);
 320     final int deoptReasonArrayCheck = getConstant("Deoptimization::Reason_array_check", Integer.class);
 321     final int deoptReasonUnreached0 = getConstant("Deoptimization::Reason_unreached0", Integer.class);
 322     final int deoptReasonTypeCheckInlining = getConstant("Deoptimization::Reason_type_checked_inlining", Integer.class);
 323     final int deoptReasonOptimizedTypeCheck = getConstant("Deoptimization::Reason_optimized_type_check", Integer.class);
 324     final int deoptReasonNotCompiledExceptionHandler = getConstant("Deoptimization::Reason_not_compiled_exception_handler", Integer.class);
 325     final int deoptReasonUnresolved = getConstant("Deoptimization::Reason_unresolved", Integer.class);
 326     final int deoptReasonJsrMismatch = getConstant("Deoptimization::Reason_jsr_mismatch", Integer.class);
 327     final int deoptReasonDiv0Check = getConstant("Deoptimization::Reason_div0_check", Integer.class);
 328     final int deoptReasonConstraint = getConstant("Deoptimization::Reason_constraint", Integer.class);
 329     final int deoptReasonLoopLimitCheck = getConstant("Deoptimization::Reason_loop_limit_check", Integer.class);
 330     final int deoptReasonAliasing = getConstant("Deoptimization::Reason_aliasing", Integer.class);
 331     final int deoptReasonTransferToInterpreter = getConstant("Deoptimization::Reason_transfer_to_interpreter", Integer.class);
 332     final int deoptReasonOSROffset = getConstant("Deoptimization::Reason_LIMIT", Integer.class);
 333 
 334     final int deoptActionNone = getConstant("Deoptimization::Action_none", Integer.class);
 335     final int deoptActionMaybeRecompile = getConstant("Deoptimization::Action_maybe_recompile", Integer.class);
 336     final int deoptActionReinterpret = getConstant("Deoptimization::Action_reinterpret", Integer.class);
 337     final int deoptActionMakeNotEntrant = getConstant("Deoptimization::Action_make_not_entrant", Integer.class);
 338     final int deoptActionMakeNotCompilable = getConstant("Deoptimization::Action_make_not_compilable", Integer.class);
 339 
 340     final int deoptimizationActionBits = getConstant("Deoptimization::_action_bits", Integer.class);
 341     final int deoptimizationReasonBits = getConstant("Deoptimization::_reason_bits", Integer.class);
 342     final int deoptimizationDebugIdBits = getConstant("Deoptimization::_debug_id_bits", Integer.class);
 343     final int deoptimizationActionShift = getConstant("Deoptimization::_action_shift", Integer.class);
 344     final int deoptimizationReasonShift = getConstant("Deoptimization::_reason_shift", Integer.class);
 345     final int deoptimizationDebugIdShift = getConstant("Deoptimization::_debug_id_shift", Integer.class);
 346 
 347     final int vmIntrinsicInvokeBasic = getConstant("vmIntrinsics::_invokeBasic", Integer.class);
 348     final int vmIntrinsicLinkToVirtual = getConstant("vmIntrinsics::_linkToVirtual", Integer.class);
 349     final int vmIntrinsicLinkToStatic = getConstant("vmIntrinsics::_linkToStatic", Integer.class);
 350     final int vmIntrinsicLinkToSpecial = getConstant("vmIntrinsics::_linkToSpecial", Integer.class);
 351     final int vmIntrinsicLinkToInterface = getConstant("vmIntrinsics::_linkToInterface", Integer.class);
 352 
 353     final int codeInstallResultOk = getConstant("JVMCI::ok", Integer.class);
 354     final int codeInstallResultDependenciesFailed = getConstant("JVMCI::dependencies_failed", Integer.class);
 355     final int codeInstallResultCacheFull = getConstant("JVMCI::cache_full", Integer.class);
 356     final int codeInstallResultCodeTooLarge = getConstant("JVMCI::code_too_large", Integer.class);
 357 
 358     String getCodeInstallResultDescription(int codeInstallResult) {
 359         if (codeInstallResult == codeInstallResultOk) {
 360             return "ok";
 361         }
 362         if (codeInstallResult == codeInstallResultDependenciesFailed) {
 363             return "dependencies failed";
 364         }
 365         if (codeInstallResult == codeInstallResultCacheFull) {
 366             return "code cache is full";
 367         }
 368         if (codeInstallResult == codeInstallResultCodeTooLarge) {
 369             return "code is too large";
 370         }
 371         assert false : codeInstallResult;
 372         return "unknown";
 373     }
 374 
 375     final int bitDataExceptionSeenFlag = getConstant("BitData::exception_seen_flag", Integer.class);
 376     final int bitDataNullSeenFlag = getConstant("BitData::null_seen_flag", Integer.class);
 377     final int methodDataCountOffset = getConstant("CounterData::count_off", Integer.class);
 378     final int jumpDataTakenOffset = getConstant("JumpData::taken_off_set", Integer.class);
 379     final int jumpDataDisplacementOffset = getConstant("JumpData::displacement_off_set", Integer.class);
 380     final int receiverTypeDataNonprofiledCountOffset = getConstant("ReceiverTypeData::nonprofiled_count_off_set", Integer.class);
 381     final int receiverTypeDataReceiverTypeRowCellCount = getConstant("ReceiverTypeData::receiver_type_row_cell_count", Integer.class);
 382     final int receiverTypeDataReceiver0Offset = getConstant("ReceiverTypeData::receiver0_offset", Integer.class);
 383     final int receiverTypeDataCount0Offset = getConstant("ReceiverTypeData::count0_offset", Integer.class);
 384     final int branchDataNotTakenOffset = getConstant("BranchData::not_taken_off_set", Integer.class);
 385     final int arrayDataArrayLenOffset = getConstant("ArrayData::array_len_off_set", Integer.class);
 386     final int arrayDataArrayStartOffset = getConstant("ArrayData::array_start_off_set", Integer.class);
 387     final int multiBranchDataPerCaseCellCount = getConstant("MultiBranchData::per_case_cell_count", Integer.class);
 388 }