1 /*
  2  * Copyright (c) 2011, 2021, 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.common.JVMCIError;
 29 import jdk.vm.ci.services.Services;
 30 import jdk.internal.misc.Unsafe;
 31 
 32 /**
 33  * Used to access native configuration details.
 34  *
 35  * All non-static, public fields in this class are so that they can be compiled as constants.
 36  */
 37 class HotSpotVMConfig extends HotSpotVMConfigAccess {
 38 
 39     /**
 40      * Gets the configuration associated with the singleton {@link HotSpotJVMCIRuntime}.
 41      */
 42     static HotSpotVMConfig config() {
 43         return runtime().getConfig();
 44     }
 45 
 46     private final String osArch = getHostArchitectureName();
 47 
 48     HotSpotVMConfig(HotSpotVMConfigStore store) {
 49         super(store);
 50 
 51         int speculationLengthBits = getConstant("JVMCINMethodData::SPECULATION_LENGTH_BITS", Integer.class);
 52         JVMCIError.guarantee(HotSpotSpeculationEncoding.LENGTH_BITS == speculationLengthBits, "%d != %d", HotSpotSpeculationEncoding.LENGTH_BITS, speculationLengthBits);
 53     }
 54 
 55     /**
 56      * Gets the host architecture name for the purpose of finding the corresponding
 57      * {@linkplain HotSpotJVMCIBackendFactory backend}.
 58      */
 59     String getHostArchitectureName() {
 60         String arch = Services.getSavedProperty("os.arch");
 61         switch (arch) {
 62             case "x86_64":
 63                 return "amd64";
 64 
 65             default:
 66                 return arch;
 67         }
 68     }
 69 
 70     final boolean useDeferredInitBarriers = getFlag("ReduceInitialCardMarks", Boolean.class);
 71 
 72     final boolean useCompressedOops = getFlag("UseCompressedOops", Boolean.class);
 73 
 74     final int objectAlignment = getFlag("ObjectAlignmentInBytes", Integer.class);
 75 
 76     // TODO: Lilliput. Probably ok.
 77     final int hubOffset = 4; // getFieldOffset("oopDesc::_metadata._klass", Integer.class, "Klass*");
 78 
 79     final int subklassOffset = getFieldOffset("Klass::_subklass", Integer.class, "Klass*");
 80     final int superOffset = getFieldOffset("Klass::_super", Integer.class, "Klass*");
 81     final int nextSiblingOffset = getFieldOffset("Klass::_next_sibling", Integer.class, "Klass*");
 82     final int superCheckOffsetOffset = getFieldOffset("Klass::_super_check_offset", Integer.class, "juint");
 83     final int secondarySuperCacheOffset = getFieldOffset("Klass::_secondary_super_cache", Integer.class, "Klass*");
 84 
 85     final int classLoaderDataOffset = getFieldOffset("Klass::_class_loader_data", Integer.class, "ClassLoaderData*");
 86 
 87     /**
 88      * The offset of the _java_mirror field (of type {@link Class}) in a Klass.
 89      */
 90     final int javaMirrorOffset = getFieldOffset("Klass::_java_mirror", Integer.class, "OopHandle");
 91 
 92     final int klassAccessFlagsOffset = getFieldOffset("Klass::_access_flags", Integer.class, "AccessFlags");
 93     final int klassLayoutHelperOffset = getFieldOffset("Klass::_layout_helper", Integer.class, "jint");
 94 
 95     final int klassLayoutHelperNeutralValue = getConstant("Klass::_lh_neutral_value", Integer.class);
 96     final int klassLayoutHelperInstanceSlowPathBit = getConstant("Klass::_lh_instance_slow_path_bit", Integer.class);
 97 
 98     final int vtableEntrySize = getFieldValue("CompilerToVM::Data::sizeof_vtableEntry", Integer.class, "int");
 99     final int vtableEntryMethodOffset = getFieldOffset("vtableEntry::_method", Integer.class, "Method*");
100 
101     final int instanceKlassInitStateOffset = getFieldOffset("InstanceKlass::_init_state", Integer.class, "u1");
102     final int instanceKlassConstantsOffset = getFieldOffset("InstanceKlass::_constants", Integer.class, "ConstantPool*");
103     final int instanceKlassFieldsOffset = getFieldOffset("InstanceKlass::_fields", Integer.class, "Array<u2>*");
104     final int instanceKlassAnnotationsOffset = getFieldOffset("InstanceKlass::_annotations", Integer.class, "Annotations*");
105     final int instanceKlassMiscFlagsOffset = getFieldOffset("InstanceKlass::_misc_flags", Integer.class, "u2");
106     final int klassVtableStartOffset = getFieldValue("CompilerToVM::Data::Klass_vtable_start_offset", Integer.class, "int");
107     final int klassVtableLengthOffset = getFieldValue("CompilerToVM::Data::Klass_vtable_length_offset", Integer.class, "int");
108 
109     final int instanceKlassStateLinked = getConstant("InstanceKlass::linked", Integer.class);
110     final int instanceKlassStateFullyInitialized = getConstant("InstanceKlass::fully_initialized", Integer.class);
111     final int instanceKlassStateBeingInitialized = getConstant("InstanceKlass::being_initialized", Integer.class);
112 
113     final int annotationsFieldAnnotationsOffset = getFieldOffset("Annotations::_fields_annotations", Integer.class, "Array<AnnotationArray*>*");
114     final int fieldsAnnotationsBaseOffset = getFieldValue("CompilerToVM::Data::_fields_annotations_base_offset", Integer.class, "int");
115 
116     final int arrayU1LengthOffset = getFieldOffset("Array<int>::_length", Integer.class, "int");
117     final int arrayU1DataOffset = getFieldOffset("Array<u1>::_data", Integer.class);
118     final int arrayU2DataOffset = getFieldOffset("Array<u2>::_data", Integer.class);
119 
120     final int fieldInfoAccessFlagsOffset = getConstant("FieldInfo::access_flags_offset", Integer.class);
121     final int fieldInfoNameIndexOffset = getConstant("FieldInfo::name_index_offset", Integer.class);
122     final int fieldInfoSignatureIndexOffset = getConstant("FieldInfo::signature_index_offset", Integer.class);
123     final int fieldInfoLowPackedOffset = getConstant("FieldInfo::low_packed_offset", Integer.class);
124     final int fieldInfoHighPackedOffset = getConstant("FieldInfo::high_packed_offset", Integer.class);
125     final int fieldInfoFieldSlots = getConstant("FieldInfo::field_slots", Integer.class);
126 
127     final int fieldInfoTagSize = getConstant("FIELDINFO_TAG_SIZE", Integer.class);
128 
129     final int jvmAccHasFinalizer = getConstant("JVM_ACC_HAS_FINALIZER", Integer.class);
130     final int jvmAccFieldInternal = getConstant("JVM_ACC_FIELD_INTERNAL", Integer.class);
131     final int jvmAccFieldStable = getConstant("JVM_ACC_FIELD_STABLE", Integer.class);
132     final int jvmAccFieldHasGenericSignature = getConstant("JVM_ACC_FIELD_HAS_GENERIC_SIGNATURE", Integer.class);
133     final int jvmAccIsCloneableFast = getConstant("JVM_ACC_IS_CLONEABLE_FAST", Integer.class);
134 
135     // These modifiers are not public in Modifier so we get them via vmStructs.
136     final int jvmAccSynthetic = getConstant("JVM_ACC_SYNTHETIC", Integer.class);
137     final int jvmAccAnnotation = getConstant("JVM_ACC_ANNOTATION", Integer.class);
138     final int jvmAccBridge = getConstant("JVM_ACC_BRIDGE", Integer.class);
139     final int jvmAccVarargs = getConstant("JVM_ACC_VARARGS", Integer.class);
140     final int jvmAccEnum = getConstant("JVM_ACC_ENUM", Integer.class);
141     final int jvmAccInterface = getConstant("JVM_ACC_INTERFACE", Integer.class);
142 
143     final int jvmMiscFlagsHasDefaultMethods = getConstant("InstanceKlass::_misc_has_nonstatic_concrete_methods", Integer.class);
144     final int jvmMiscFlagsDeclaresDefaultMethods = getConstant("InstanceKlass::_misc_declares_nonstatic_concrete_methods", Integer.class);
145 
146     // This is only valid on AMD64.
147     final int runtimeCallStackSize = getConstant("frame::arg_reg_save_area_bytes", Integer.class, osArch.equals("amd64") ? null : 0);
148 
149     private final int markWordNoHashInPlace = getConstant("markWord::no_hash_in_place", Integer.class);
150     private final int markWordNoLockInPlace = getConstant("markWord::no_lock_in_place", Integer.class);
151 
152     /**
153      * See {@code markWord::prototype()}.
154      */
155     long prototypeMarkWord() {
156         return markWordNoHashInPlace | markWordNoLockInPlace;
157     }
158 
159     final int methodAccessFlagsOffset = getFieldOffset("Method::_access_flags", Integer.class, "AccessFlags");
160     final int methodConstMethodOffset = getFieldOffset("Method::_constMethod", Integer.class, "ConstMethod*");
161     final int methodIntrinsicIdOffset = getFieldOffset("Method::_intrinsic_id", Integer.class, "u2");
162     final int methodFlagsOffset = getFieldOffset("Method::_flags", Integer.class, "u2");
163     final int methodVtableIndexOffset = getFieldOffset("Method::_vtable_index", Integer.class, "int");
164 
165     final int methodDataOffset = getFieldOffset("Method::_method_data", Integer.class, "MethodData*");
166     final int methodCodeOffset = getFieldOffset("Method::_code", Integer.class, "CompiledMethod*");
167 
168     final int methodFlagsCallerSensitive = getConstant("Method::_caller_sensitive", Integer.class);
169     final int methodFlagsForceInline = getConstant("Method::_force_inline", Integer.class);
170     final int methodFlagsIntrinsicCandidate = getConstant("Method::_intrinsic_candidate", Integer.class);
171     final int methodFlagsDontInline = getConstant("Method::_dont_inline", Integer.class);
172     final int methodFlagsReservedStackAccess = getConstant("Method::_reserved_stack_access", Integer.class);
173     final int nonvirtualVtableIndex = getConstant("Method::nonvirtual_vtable_index", Integer.class);
174     final int invalidVtableIndex = getConstant("Method::invalid_vtable_index", Integer.class);
175 
176     final int methodDataSize = getFieldOffset("MethodData::_size", Integer.class, "int");
177     final int methodDataDataSize = getFieldOffset("MethodData::_data_size", Integer.class, "int");
178     final int methodDataOopDataOffset = getFieldOffset("MethodData::_data[0]", Integer.class, "intptr_t");
179     final int methodDataOopTrapHistoryOffset = getFieldOffset("MethodData::_compiler_counters._trap_hist._array[0]", Integer.class, "u1");
180     final int methodDataIRSizeOffset = getFieldOffset("MethodData::_jvmci_ir_size", Integer.class, "int");
181 
182     final int methodDataDecompiles = getFieldOffset("MethodData::_compiler_counters._nof_decompiles", Integer.class, "uint");
183     final int methodDataOverflowRecompiles = getFieldOffset("MethodData::_compiler_counters._nof_overflow_recompiles", Integer.class, "uint");
184     final int methodDataOverflowTraps = getFieldOffset("MethodData::_compiler_counters._nof_overflow_traps", Integer.class, "uint");
185 
186     final int nmethodCompLevelOffset = getFieldOffset("nmethod::_comp_level", Integer.class, "int");
187 
188     final int compilationLevelNone = getConstant("CompLevel_none", Integer.class);
189     final int compilationLevelSimple = getConstant("CompLevel_simple", Integer.class);
190     final int compilationLevelLimitedProfile = getConstant("CompLevel_limited_profile", Integer.class);
191     final int compilationLevelFullProfile = getConstant("CompLevel_full_profile", Integer.class);
192     final int compilationLevelFullOptimization = getConstant("CompLevel_full_optimization", Integer.class);
193 
194     final int compLevelAdjustmentNone = getConstant("JVMCIRuntime::none", Integer.class);
195     final int compLevelAdjustmentByHolder = getConstant("JVMCIRuntime::by_holder", Integer.class);
196     final int compLevelAdjustmentByFullSignature = getConstant("JVMCIRuntime::by_full_signature", Integer.class);
197 
198     final int invocationEntryBci = getConstant("InvocationEntryBci", Integer.class);
199 
200     final int extraStackEntries = getFieldValue("CompilerToVM::Data::Method_extra_stack_entries", Integer.class, "int");
201 
202     final int constMethodConstantsOffset = getFieldOffset("ConstMethod::_constants", Integer.class, "ConstantPool*");
203     final int constMethodFlagsOffset = getFieldOffset("ConstMethod::_flags", Integer.class, "u2");
204     final int constMethodCodeSizeOffset = getFieldOffset("ConstMethod::_code_size", Integer.class, "u2");
205     final int constMethodNameIndexOffset = getFieldOffset("ConstMethod::_name_index", Integer.class, "u2");
206     final int constMethodSignatureIndexOffset = getFieldOffset("ConstMethod::_signature_index", Integer.class, "u2");
207     final int constMethodMethodIdnumOffset = getFieldOffset("ConstMethod::_method_idnum", Integer.class, "u2");
208     final int constMethodMaxStackOffset = getFieldOffset("ConstMethod::_max_stack", Integer.class, "u2");
209     final int methodMaxLocalsOffset = getFieldOffset("ConstMethod::_max_locals", Integer.class, "u2");
210 
211     final int constMethodHasLineNumberTable = getConstant("ConstMethod::_has_linenumber_table", Integer.class);
212     final int constMethodHasLocalVariableTable = getConstant("ConstMethod::_has_localvariable_table", Integer.class);
213     final int constMethodHasMethodAnnotations = getConstant("ConstMethod::_has_method_annotations", Integer.class);
214     final int constMethodHasParameterAnnotations = getConstant("ConstMethod::_has_parameter_annotations", Integer.class);
215     final int constMethodHasExceptionTable = getConstant("ConstMethod::_has_exception_table", Integer.class);
216 
217     final int exceptionTableElementSize = getFieldValue("CompilerToVM::Data::sizeof_ExceptionTableElement", Integer.class, "int");
218     final int exceptionTableElementStartPcOffset = getFieldOffset("ExceptionTableElement::start_pc", Integer.class, "u2");
219     final int exceptionTableElementEndPcOffset = getFieldOffset("ExceptionTableElement::end_pc", Integer.class, "u2");
220     final int exceptionTableElementHandlerPcOffset = getFieldOffset("ExceptionTableElement::handler_pc", Integer.class, "u2");
221     final int exceptionTableElementCatchTypeIndexOffset = getFieldOffset("ExceptionTableElement::catch_type_index", Integer.class, "u2");
222 
223     final int localVariableTableElementSize = getFieldValue("CompilerToVM::Data::sizeof_LocalVariableTableElement", Integer.class, "int");
224     final int localVariableTableElementStartBciOffset = getFieldOffset("LocalVariableTableElement::start_bci", Integer.class, "u2");
225     final int localVariableTableElementLengthOffset = getFieldOffset("LocalVariableTableElement::length", Integer.class, "u2");
226     final int localVariableTableElementNameCpIndexOffset = getFieldOffset("LocalVariableTableElement::name_cp_index", Integer.class, "u2");
227     final int localVariableTableElementDescriptorCpIndexOffset = getFieldOffset("LocalVariableTableElement::descriptor_cp_index", Integer.class, "u2");
228     final int localVariableTableElementSlotOffset = getFieldOffset("LocalVariableTableElement::slot", Integer.class, "u2");
229 
230     final int constantPoolSize = getFieldValue("CompilerToVM::Data::sizeof_ConstantPool", Integer.class, "int");
231     final int constantPoolTagsOffset = getFieldOffset("ConstantPool::_tags", Integer.class, "Array<u1>*");
232     final int constantPoolHolderOffset = getFieldOffset("ConstantPool::_pool_holder", Integer.class, "InstanceKlass*");
233     final int constantPoolLengthOffset = getFieldOffset("ConstantPool::_length", Integer.class, "int");
234     final int constantPoolFlagsOffset = getFieldOffset("ConstantPool::_flags", Integer.class, "u2");
235 
236     final int constantPoolCpCacheIndexTag = getConstant("ConstantPool::CPCACHE_INDEX_TAG", Integer.class);
237     final int constantPoolHasDynamicConstant = getConstant("ConstantPool::_has_dynamic_constant", Integer.class);
238     final int constantPoolSourceFileNameIndexOffset = getFieldOffset("ConstantPool::_source_file_name_index", Integer.class, "u2");
239 
240     final int jvmConstantUtf8 = getConstant("JVM_CONSTANT_Utf8", Integer.class);
241     final int jvmConstantInteger = getConstant("JVM_CONSTANT_Integer", Integer.class);
242     final int jvmConstantLong = getConstant("JVM_CONSTANT_Long", Integer.class);
243     final int jvmConstantFloat = getConstant("JVM_CONSTANT_Float", Integer.class);
244     final int jvmConstantDouble = getConstant("JVM_CONSTANT_Double", Integer.class);
245     final int jvmConstantClass = getConstant("JVM_CONSTANT_Class", Integer.class);
246     final int jvmConstantUnresolvedClass = getConstant("JVM_CONSTANT_UnresolvedClass", Integer.class);
247     final int jvmConstantUnresolvedClassInError = getConstant("JVM_CONSTANT_UnresolvedClassInError", Integer.class);
248     final int jvmConstantString = getConstant("JVM_CONSTANT_String", Integer.class);
249     final int jvmConstantFieldref = getConstant("JVM_CONSTANT_Fieldref", Integer.class);
250     final int jvmConstantMethodref = getConstant("JVM_CONSTANT_Methodref", Integer.class);
251     final int jvmConstantInterfaceMethodref = getConstant("JVM_CONSTANT_InterfaceMethodref", Integer.class);
252     final int jvmConstantNameAndType = getConstant("JVM_CONSTANT_NameAndType", Integer.class);
253     final int jvmConstantMethodHandle = getConstant("JVM_CONSTANT_MethodHandle", Integer.class);
254     final int jvmConstantMethodHandleInError = getConstant("JVM_CONSTANT_MethodHandleInError", Integer.class);
255     final int jvmConstantMethodType = getConstant("JVM_CONSTANT_MethodType", Integer.class);
256     final int jvmConstantMethodTypeInError = getConstant("JVM_CONSTANT_MethodTypeInError", Integer.class);
257     final int jvmConstantDynamic = getConstant("JVM_CONSTANT_Dynamic", Integer.class);
258     final int jvmConstantDynamicInError = getConstant("JVM_CONSTANT_DynamicInError", Integer.class);
259     final int jvmConstantInvokeDynamic = getConstant("JVM_CONSTANT_InvokeDynamic", Integer.class);
260 
261     final int jvmConstantExternalMax = getConstant("JVM_CONSTANT_ExternalMax", Integer.class);
262     final int jvmConstantInternalMin = getConstant("JVM_CONSTANT_InternalMin", Integer.class);
263     final int jvmConstantInternalMax = getConstant("JVM_CONSTANT_InternalMax", Integer.class);
264 
265     final int heapWordSize = getConstant("HeapWordSize", Integer.class);
266 
267     final long symbolVmSymbols = getFieldAddress("Symbol::_vm_symbols[0]", "Symbol*");
268     final int vmSymbolsFirstSID = getConstant("vmSymbols::FIRST_SID", Integer.class);
269     final int vmSymbolsSIDLimit = getConstant("vmSymbols::SID_LIMIT", Integer.class);
270 
271     final long symbolInit = getFieldValue("CompilerToVM::Data::symbol_init", Long.class);
272     final long symbolClinit = getFieldValue("CompilerToVM::Data::symbol_clinit", Long.class);
273 
274     /**
275      * Returns the symbol in the {@code vmSymbols} table at position {@code index} as a
276      * {@link String}.
277      *
278      * @param index position in the symbol table
279      * @return the symbol at position id
280      */
281     String symbolAt(int index) {
282         HotSpotJVMCIRuntime runtime = runtime();
283         assert vmSymbolsFirstSID <= index && index < vmSymbolsSIDLimit : "index " + index + " is out of bounds";
284         int offset = index * Unsafe.ADDRESS_SIZE;
285         return runtime.getCompilerToVM().getSymbol(UNSAFE.getAddress(symbolVmSymbols + offset));
286     }
287 
288     final int universeBaseVtableSize = getFieldValue("CompilerToVM::Data::Universe_base_vtable_size", Integer.class, "int");
289 
290     final int baseVtableLength() {
291         return universeBaseVtableSize / (vtableEntrySize / heapWordSize);
292     }
293 
294     final int klassOffset = getFieldValue("java_lang_Class::_klass_offset", Integer.class, "int");
295 
296     /**
297      * The DataLayout header size is the same as the cell size.
298      */
299     final int dataLayoutHeaderSize = getConstant("DataLayout::cell_size", Integer.class);
300     final int dataLayoutTagOffset = getFieldOffset("DataLayout::_header._struct._tag", Integer.class, "u1");
301     final int dataLayoutFlagsOffset = getFieldOffset("DataLayout::_header._struct._flags", Integer.class, "u1");
302     final int dataLayoutBCIOffset = getFieldOffset("DataLayout::_header._struct._bci", Integer.class, "u2");
303     final int dataLayoutCellSize = getConstant("DataLayout::cell_size", Integer.class);
304 
305     final int dataLayoutNoTag = getConstant("DataLayout::no_tag", Integer.class);
306     final int dataLayoutBitDataTag = getConstant("DataLayout::bit_data_tag", Integer.class);
307     final int dataLayoutCounterDataTag = getConstant("DataLayout::counter_data_tag", Integer.class);
308     final int dataLayoutJumpDataTag = getConstant("DataLayout::jump_data_tag", Integer.class);
309     final int dataLayoutReceiverTypeDataTag = getConstant("DataLayout::receiver_type_data_tag", Integer.class);
310     final int dataLayoutVirtualCallDataTag = getConstant("DataLayout::virtual_call_data_tag", Integer.class);
311     final int dataLayoutRetDataTag = getConstant("DataLayout::ret_data_tag", Integer.class);
312     final int dataLayoutBranchDataTag = getConstant("DataLayout::branch_data_tag", Integer.class);
313     final int dataLayoutMultiBranchDataTag = getConstant("DataLayout::multi_branch_data_tag", Integer.class);
314     final int dataLayoutArgInfoDataTag = getConstant("DataLayout::arg_info_data_tag", Integer.class);
315     final int dataLayoutCallTypeDataTag = getConstant("DataLayout::call_type_data_tag", Integer.class);
316     final int dataLayoutVirtualCallTypeDataTag = getConstant("DataLayout::virtual_call_type_data_tag", Integer.class);
317     final int dataLayoutParametersTypeDataTag = getConstant("DataLayout::parameters_type_data_tag", Integer.class);
318     final int dataLayoutSpeculativeTrapDataTag = getConstant("DataLayout::speculative_trap_data_tag", Integer.class);
319 
320     final int bciProfileWidth = getFlag("BciProfileWidth", Integer.class);
321     final int typeProfileWidth = getFlag("TypeProfileWidth", Integer.class);
322     final int methodProfileWidth = getFlag("MethodProfileWidth", Integer.class, 0);
323 
324     final int deoptReasonNone = getConstant("Deoptimization::Reason_none", Integer.class);
325     final int deoptReasonNullCheck = getConstant("Deoptimization::Reason_null_check", Integer.class);
326     final int deoptReasonRangeCheck = getConstant("Deoptimization::Reason_range_check", Integer.class);
327     final int deoptReasonClassCheck = getConstant("Deoptimization::Reason_class_check", Integer.class);
328     final int deoptReasonArrayCheck = getConstant("Deoptimization::Reason_array_check", Integer.class);
329     final int deoptReasonUnreached0 = getConstant("Deoptimization::Reason_unreached0", Integer.class);
330     final int deoptReasonTypeCheckInlining = getConstant("Deoptimization::Reason_type_checked_inlining", Integer.class);
331     final int deoptReasonOptimizedTypeCheck = getConstant("Deoptimization::Reason_optimized_type_check", Integer.class);
332     final int deoptReasonNotCompiledExceptionHandler = getConstant("Deoptimization::Reason_not_compiled_exception_handler", Integer.class);
333     final int deoptReasonUnresolved = getConstant("Deoptimization::Reason_unresolved", Integer.class);
334     final int deoptReasonJsrMismatch = getConstant("Deoptimization::Reason_jsr_mismatch", Integer.class);
335     final int deoptReasonDiv0Check = getConstant("Deoptimization::Reason_div0_check", Integer.class);
336     final int deoptReasonConstraint = getConstant("Deoptimization::Reason_constraint", Integer.class);
337     final int deoptReasonLoopLimitCheck = getConstant("Deoptimization::Reason_loop_limit_check", Integer.class);
338     final int deoptReasonAliasing = getConstant("Deoptimization::Reason_aliasing", Integer.class);
339     final int deoptReasonTransferToInterpreter = getConstant("Deoptimization::Reason_transfer_to_interpreter", Integer.class);
340     final int deoptReasonOSROffset = getConstant("Deoptimization::Reason_TRAP_HISTORY_LENGTH", Integer.class);
341 
342     final int deoptActionNone = getConstant("Deoptimization::Action_none", Integer.class);
343     final int deoptActionMaybeRecompile = getConstant("Deoptimization::Action_maybe_recompile", Integer.class);
344     final int deoptActionReinterpret = getConstant("Deoptimization::Action_reinterpret", Integer.class);
345     final int deoptActionMakeNotEntrant = getConstant("Deoptimization::Action_make_not_entrant", Integer.class);
346     final int deoptActionMakeNotCompilable = getConstant("Deoptimization::Action_make_not_compilable", Integer.class);
347 
348     final int deoptimizationActionBits = getConstant("Deoptimization::_action_bits", Integer.class);
349     final int deoptimizationReasonBits = getConstant("Deoptimization::_reason_bits", Integer.class);
350     final int deoptimizationDebugIdBits = getConstant("Deoptimization::_debug_id_bits", Integer.class);
351     final int deoptimizationActionShift = getConstant("Deoptimization::_action_shift", Integer.class);
352     final int deoptimizationReasonShift = getConstant("Deoptimization::_reason_shift", Integer.class);
353     final int deoptimizationDebugIdShift = getConstant("Deoptimization::_debug_id_shift", Integer.class);
354 
355     final int vmIntrinsicInvokeBasic = getConstant("vmIntrinsics::_invokeBasic", Integer.class);
356     final int vmIntrinsicLinkToVirtual = getConstant("vmIntrinsics::_linkToVirtual", Integer.class);
357     final int vmIntrinsicLinkToStatic = getConstant("vmIntrinsics::_linkToStatic", Integer.class);
358     final int vmIntrinsicLinkToSpecial = getConstant("vmIntrinsics::_linkToSpecial", Integer.class);
359     final int vmIntrinsicLinkToInterface = getConstant("vmIntrinsics::_linkToInterface", Integer.class);
360 
361     final int codeInstallResultOk = getConstant("JVMCI::ok", Integer.class);
362     final int codeInstallResultDependenciesFailed = getConstant("JVMCI::dependencies_failed", Integer.class);
363     final int codeInstallResultCacheFull = getConstant("JVMCI::cache_full", Integer.class);
364     final int codeInstallResultCodeTooLarge = getConstant("JVMCI::code_too_large", Integer.class);
365     final int codeInstallResultNMethodReclaimed = getConstant("JVMCI::nmethod_reclaimed", Integer.class);
366     final int codeInstallResultFirstPermanentBailout = getConstant("JVMCI::first_permanent_bailout", Integer.class);
367 
368     String getCodeInstallResultDescription(int codeInstallResult) {
369         if (codeInstallResult == codeInstallResultOk) {
370             return "ok";
371         }
372         if (codeInstallResult == codeInstallResultDependenciesFailed) {
373             return "dependencies failed";
374         }
375         if (codeInstallResult == codeInstallResultCacheFull) {
376             return "code cache is full";
377         }
378         if (codeInstallResult == codeInstallResultCodeTooLarge) {
379             return "code is too large";
380         }
381         if (codeInstallResult == codeInstallResultNMethodReclaimed) {
382             return "nmethod reclaimed";
383         }
384         assert false : codeInstallResult;
385         return "unknown";
386     }
387 
388     final int bitDataExceptionSeenFlag = getConstant("BitData::exception_seen_flag", Integer.class);
389     final int bitDataNullSeenFlag = getConstant("BitData::null_seen_flag", Integer.class);
390     final int methodDataCountOffset = getConstant("CounterData::count_off", Integer.class);
391     final int jumpDataTakenOffset = getConstant("JumpData::taken_off_set", Integer.class);
392     final int jumpDataDisplacementOffset = getConstant("JumpData::displacement_off_set", Integer.class);
393     final int receiverTypeDataNonprofiledCountOffset = getConstant("ReceiverTypeData::nonprofiled_count_off_set", Integer.class);
394     final int receiverTypeDataReceiverTypeRowCellCount = getConstant("ReceiverTypeData::receiver_type_row_cell_count", Integer.class);
395     final int receiverTypeDataReceiver0Offset = getConstant("ReceiverTypeData::receiver0_offset", Integer.class);
396     final int receiverTypeDataCount0Offset = getConstant("ReceiverTypeData::count0_offset", Integer.class);
397     final int branchDataNotTakenOffset = getConstant("BranchData::not_taken_off_set", Integer.class);
398     final int arrayDataArrayLenOffset = getConstant("ArrayData::array_len_off_set", Integer.class);
399     final int arrayDataArrayStartOffset = getConstant("ArrayData::array_start_off_set", Integer.class);
400     final int multiBranchDataPerCaseCellCount = getConstant("MultiBranchData::per_case_cell_count", Integer.class);
401 }