1 /*
2  * Copyright (c) 2011, 2018, 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.internal.misc.Unsafe;
29 
30 /**
31  * Used to access native configuration details.
32  *
33  * All non-static, public fields in this class are so that they can be compiled as constants.
34  */
35 class HotSpotVMConfig extends HotSpotVMConfigAccess {
36 
37     /**
38      * Gets the configuration associated with the singleton {@link HotSpotJVMCIRuntime}.
39      */
config()40     static HotSpotVMConfig config() {
41         return runtime().getConfig();
42     }
43 
44     private final String osArch = getHostArchitectureName();
45 
HotSpotVMConfig(HotSpotVMConfigStore store)46     HotSpotVMConfig(HotSpotVMConfigStore store) {
47         super(store);
48     }
49 
50     /**
51      * Gets the host architecture name for the purpose of finding the corresponding
52      * {@linkplain HotSpotJVMCIBackendFactory backend}.
53      */
getHostArchitectureName()54     String getHostArchitectureName() {
55         String arch = System.getProperty("os.arch");
56         switch (arch) {
57             case "x86_64":
58                 return "amd64";
59 
60             case "sparcv9":
61                 return "sparc";
62             default:
63                 return arch;
64         }
65     }
66 
67     final boolean useDeferredInitBarriers = getFlag("ReduceInitialCardMarks", Boolean.class);
68 
69     final boolean useCompressedOops = getFlag("UseCompressedOops", Boolean.class);
70 
71     final int objectAlignment = getFlag("ObjectAlignmentInBytes", Integer.class);
72 
73     final int prototypeMarkWordOffset = getFieldOffset("Klass::_prototype_header", Integer.class, "markOop");
74     final int subklassOffset = getFieldOffset("Klass::_subklass", Integer.class, "Klass*");
75     final int nextSiblingOffset = getFieldOffset("Klass::_next_sibling", Integer.class, "Klass*");
76     final int superCheckOffsetOffset = getFieldOffset("Klass::_super_check_offset", Integer.class, "juint");
77     final int secondarySuperCacheOffset = getFieldOffset("Klass::_secondary_super_cache", Integer.class, "Klass*");
78 
79     /**
80      * The offset of the _java_mirror field (of type {@link Class}) in a Klass.
81      */
82     final int classMirrorHandleOffset = getFieldOffset("Klass::_java_mirror", Integer.class, "OopHandle");
83 
84     final int klassAccessFlagsOffset = getFieldOffset("Klass::_access_flags", Integer.class, "AccessFlags");
85     final int klassLayoutHelperOffset = getFieldOffset("Klass::_layout_helper", Integer.class, "jint");
86 
87     final int klassLayoutHelperNeutralValue = getConstant("Klass::_lh_neutral_value", Integer.class);
88     final int klassLayoutHelperInstanceSlowPathBit = getConstant("Klass::_lh_instance_slow_path_bit", Integer.class);
89 
90     final int vtableEntrySize = getFieldValue("CompilerToVM::Data::sizeof_vtableEntry", Integer.class, "int");
91     final int vtableEntryMethodOffset = getFieldOffset("vtableEntry::_method", Integer.class, "Method*");
92 
93     final int instanceKlassSourceFileNameIndexOffset = getFieldOffset("InstanceKlass::_source_file_name_index", Integer.class, "u2");
94     final int instanceKlassInitStateOffset = getFieldOffset("InstanceKlass::_init_state", Integer.class, "u1");
95     final int instanceKlassConstantsOffset = getFieldOffset("InstanceKlass::_constants", Integer.class, "ConstantPool*");
96     final int instanceKlassFieldsOffset = getFieldOffset("InstanceKlass::_fields", Integer.class, "Array<u2>*");
97     final int instanceKlassAnnotationsOffset = getFieldOffset("InstanceKlass::_annotations", Integer.class, "Annotations*");
98     final int instanceKlassMiscFlagsOffset = getFieldOffset("InstanceKlass::_misc_flags", Integer.class, "u2");
99     final int klassVtableStartOffset = getFieldValue("CompilerToVM::Data::Klass_vtable_start_offset", Integer.class, "int");
100     final int klassVtableLengthOffset = getFieldValue("CompilerToVM::Data::Klass_vtable_length_offset", Integer.class, "int");
101 
102     final int instanceKlassStateLinked = getConstant("InstanceKlass::linked", Integer.class);
103     final int instanceKlassStateFullyInitialized = getConstant("InstanceKlass::fully_initialized", Integer.class);
104     final int instanceKlassMiscIsUnsafeAnonymous = getConstant("InstanceKlass::_misc_is_unsafe_anonymous", Integer.class);
105 
106     final int annotationsFieldAnnotationsOffset = getFieldOffset("Annotations::_fields_annotations", Integer.class, "Array<AnnotationArray*>*");
107     final int fieldsAnnotationsBaseOffset = getFieldValue("CompilerToVM::Data::_fields_annotations_base_offset", Integer.class, "int");
108 
109     final int arrayU1LengthOffset = getFieldOffset("Array<int>::_length", Integer.class, "int");
110     final int arrayU1DataOffset = getFieldOffset("Array<u1>::_data", Integer.class);
111     final int arrayU2DataOffset = getFieldOffset("Array<u2>::_data", Integer.class);
112 
113     final int fieldInfoAccessFlagsOffset = getConstant("FieldInfo::access_flags_offset", Integer.class);
114     final int fieldInfoNameIndexOffset = getConstant("FieldInfo::name_index_offset", Integer.class);
115     final int fieldInfoSignatureIndexOffset = getConstant("FieldInfo::signature_index_offset", Integer.class);
116     final int fieldInfoLowPackedOffset = getConstant("FieldInfo::low_packed_offset", Integer.class);
117     final int fieldInfoHighPackedOffset = getConstant("FieldInfo::high_packed_offset", Integer.class);
118     final int fieldInfoFieldSlots = getConstant("FieldInfo::field_slots", Integer.class);
119 
120     final int fieldInfoTagSize = getConstant("FIELDINFO_TAG_SIZE", Integer.class);
121 
122     final int jvmAccHasFinalizer = getConstant("JVM_ACC_HAS_FINALIZER", Integer.class);
123     final int jvmAccFieldInternal = getConstant("JVM_ACC_FIELD_INTERNAL", Integer.class);
124     final int jvmAccFieldStable = getConstant("JVM_ACC_FIELD_STABLE", Integer.class);
125     final int jvmAccFieldHasGenericSignature = getConstant("JVM_ACC_FIELD_HAS_GENERIC_SIGNATURE", Integer.class);
126     final int jvmAccIsCloneableFast = getConstant("JVM_ACC_IS_CLONEABLE_FAST", Integer.class);
127 
128     // These modifiers are not public in Modifier so we get them via vmStructs.
129     final int jvmAccSynthetic = getConstant("JVM_ACC_SYNTHETIC", Integer.class);
130     final int jvmAccAnnotation = getConstant("JVM_ACC_ANNOTATION", Integer.class);
131     final int jvmAccBridge = getConstant("JVM_ACC_BRIDGE", Integer.class);
132     final int jvmAccVarargs = getConstant("JVM_ACC_VARARGS", Integer.class);
133     final int jvmAccEnum = getConstant("JVM_ACC_ENUM", Integer.class);
134 
135     // This is only valid on AMD64.
136     final int runtimeCallStackSize = getConstant("frame::arg_reg_save_area_bytes", Integer.class, osArch.equals("amd64") ? null : 0);
137 
138     private final int markWordNoHashInPlace = getConstant("markOopDesc::no_hash_in_place", Integer.class);
139     private final int markWordNoLockInPlace = getConstant("markOopDesc::no_lock_in_place", Integer.class);
140 
141     /**
142      * See {@code markOopDesc::prototype()}.
143      */
arrayPrototypeMarkWord()144     long arrayPrototypeMarkWord() {
145         return markWordNoHashInPlace | markWordNoLockInPlace;
146     }
147 
148     final int methodAccessFlagsOffset = getFieldOffset("Method::_access_flags", Integer.class, "AccessFlags");
149     final int methodConstMethodOffset = getFieldOffset("Method::_constMethod", Integer.class, "ConstMethod*");
150     final int methodIntrinsicIdOffset = getFieldOffset("Method::_intrinsic_id", Integer.class, "u2");
151     final int methodFlagsOffset = getFieldOffset("Method::_flags", Integer.class, "u2");
152     final int methodVtableIndexOffset = getFieldOffset("Method::_vtable_index", Integer.class, "int");
153 
154     final int methodDataOffset = getFieldOffset("Method::_method_data", Integer.class, "MethodData*");
155     final int methodCodeOffset = getFieldOffset("Method::_code", Integer.class, "CompiledMethod*");
156 
157     final int methodFlagsCallerSensitive = getConstant("Method::_caller_sensitive", Integer.class);
158     final int methodFlagsForceInline = getConstant("Method::_force_inline", Integer.class);
159     final int methodFlagsIntrinsicCandidate = getConstant("Method::_intrinsic_candidate", Integer.class);
160     final int methodFlagsDontInline = getConstant("Method::_dont_inline", Integer.class);
161     final int methodFlagsReservedStackAccess = getConstant("Method::_reserved_stack_access", Integer.class);
162     final int nonvirtualVtableIndex = getConstant("Method::nonvirtual_vtable_index", Integer.class);
163     final int invalidVtableIndex = getConstant("Method::invalid_vtable_index", Integer.class);
164 
165     final int methodDataSize = getFieldOffset("MethodData::_size", Integer.class, "int");
166     final int methodDataDataSize = getFieldOffset("MethodData::_data_size", Integer.class, "int");
167     final int methodDataOopDataOffset = getFieldOffset("MethodData::_data[0]", Integer.class, "intptr_t");
168     final int methodDataOopTrapHistoryOffset = getFieldOffset("MethodData::_trap_hist._array[0]", Integer.class, "u1");
169     final int methodDataIRSizeOffset = getFieldOffset("MethodData::_jvmci_ir_size", Integer.class, "int");
170 
171     final int methodDataDecompiles = getFieldOffset("MethodData::_nof_decompiles", Integer.class, "uint");
172     final int methodDataOverflowRecompiles = getFieldOffset("MethodData::_nof_overflow_recompiles", Integer.class, "uint");
173     final int methodDataOverflowTraps = getFieldOffset("MethodData::_nof_overflow_traps", Integer.class, "uint");
174 
175     final int nmethodCompLevelOffset = getFieldOffset("nmethod::_comp_level", Integer.class, "int");
176 
177     final int compilationLevelNone = getConstant("CompLevel_none", Integer.class);
178     final int compilationLevelSimple = getConstant("CompLevel_simple", Integer.class);
179     final int compilationLevelLimitedProfile = getConstant("CompLevel_limited_profile", Integer.class);
180     final int compilationLevelFullProfile = getConstant("CompLevel_full_profile", Integer.class);
181     final int compilationLevelFullOptimization = getConstant("CompLevel_full_optimization", Integer.class);
182 
183     final int compLevelAdjustmentNone = getConstant("JVMCIRuntime::none", Integer.class);
184     final int compLevelAdjustmentByHolder = getConstant("JVMCIRuntime::by_holder", Integer.class);
185     final int compLevelAdjustmentByFullSignature = getConstant("JVMCIRuntime::by_full_signature", Integer.class);
186 
187     final int invocationEntryBci = getConstant("InvocationEntryBci", Integer.class);
188 
189     final int extraStackEntries = getFieldValue("CompilerToVM::Data::Method_extra_stack_entries", Integer.class, "int");
190 
191     final int constMethodConstantsOffset = getFieldOffset("ConstMethod::_constants", Integer.class, "ConstantPool*");
192     final int constMethodFlagsOffset = getFieldOffset("ConstMethod::_flags", Integer.class, "u2");
193     final int constMethodCodeSizeOffset = getFieldOffset("ConstMethod::_code_size", Integer.class, "u2");
194     final int constMethodNameIndexOffset = getFieldOffset("ConstMethod::_name_index", Integer.class, "u2");
195     final int constMethodSignatureIndexOffset = getFieldOffset("ConstMethod::_signature_index", Integer.class, "u2");
196     final int constMethodMethodIdnumOffset = getFieldOffset("ConstMethod::_method_idnum", Integer.class, "u2");
197     final int constMethodMaxStackOffset = getFieldOffset("ConstMethod::_max_stack", Integer.class, "u2");
198     final int methodMaxLocalsOffset = getFieldOffset("ConstMethod::_max_locals", Integer.class, "u2");
199 
200     final int constMethodHasLineNumberTable = getConstant("ConstMethod::_has_linenumber_table", Integer.class);
201     final int constMethodHasLocalVariableTable = getConstant("ConstMethod::_has_localvariable_table", Integer.class);
202     final int constMethodHasMethodAnnotations = getConstant("ConstMethod::_has_method_annotations", Integer.class);
203     final int constMethodHasParameterAnnotations = getConstant("ConstMethod::_has_parameter_annotations", Integer.class);
204     final int constMethodHasExceptionTable = getConstant("ConstMethod::_has_exception_table", Integer.class);
205 
206     final int exceptionTableElementSize = getFieldValue("CompilerToVM::Data::sizeof_ExceptionTableElement", Integer.class, "int");
207     final int exceptionTableElementStartPcOffset = getFieldOffset("ExceptionTableElement::start_pc", Integer.class, "u2");
208     final int exceptionTableElementEndPcOffset = getFieldOffset("ExceptionTableElement::end_pc", Integer.class, "u2");
209     final int exceptionTableElementHandlerPcOffset = getFieldOffset("ExceptionTableElement::handler_pc", Integer.class, "u2");
210     final int exceptionTableElementCatchTypeIndexOffset = getFieldOffset("ExceptionTableElement::catch_type_index", Integer.class, "u2");
211 
212     final int localVariableTableElementSize = getFieldValue("CompilerToVM::Data::sizeof_LocalVariableTableElement", Integer.class, "int");
213     final int localVariableTableElementStartBciOffset = getFieldOffset("LocalVariableTableElement::start_bci", Integer.class, "u2");
214     final int localVariableTableElementLengthOffset = getFieldOffset("LocalVariableTableElement::length", Integer.class, "u2");
215     final int localVariableTableElementNameCpIndexOffset = getFieldOffset("LocalVariableTableElement::name_cp_index", Integer.class, "u2");
216     final int localVariableTableElementDescriptorCpIndexOffset = getFieldOffset("LocalVariableTableElement::descriptor_cp_index", Integer.class, "u2");
217     final int localVariableTableElementSlotOffset = getFieldOffset("LocalVariableTableElement::slot", Integer.class, "u2");
218 
219     final int constantPoolSize = getFieldValue("CompilerToVM::Data::sizeof_ConstantPool", Integer.class, "int");
220     final int constantPoolTagsOffset = getFieldOffset("ConstantPool::_tags", Integer.class, "Array<u1>*");
221     final int constantPoolHolderOffset = getFieldOffset("ConstantPool::_pool_holder", Integer.class, "InstanceKlass*");
222     final int constantPoolLengthOffset = getFieldOffset("ConstantPool::_length", Integer.class, "int");
223     final int constantPoolFlagsOffset = getFieldOffset("ConstantPool::_flags", Integer.class, "int");
224 
225     final int constantPoolCpCacheIndexTag = getConstant("ConstantPool::CPCACHE_INDEX_TAG", Integer.class);
226     final int constantPoolHasDynamicConstant = getConstant("ConstantPool::_has_dynamic_constant", Integer.class);
227 
228     final int jvmConstantUtf8 = getConstant("JVM_CONSTANT_Utf8", Integer.class);
229     final int jvmConstantInteger = getConstant("JVM_CONSTANT_Integer", Integer.class);
230     final int jvmConstantLong = getConstant("JVM_CONSTANT_Long", Integer.class);
231     final int jvmConstantFloat = getConstant("JVM_CONSTANT_Float", Integer.class);
232     final int jvmConstantDouble = getConstant("JVM_CONSTANT_Double", Integer.class);
233     final int jvmConstantClass = getConstant("JVM_CONSTANT_Class", Integer.class);
234     final int jvmConstantUnresolvedClass = getConstant("JVM_CONSTANT_UnresolvedClass", Integer.class);
235     final int jvmConstantUnresolvedClassInError = getConstant("JVM_CONSTANT_UnresolvedClassInError", Integer.class);
236     final int jvmConstantString = getConstant("JVM_CONSTANT_String", Integer.class);
237     final int jvmConstantFieldref = getConstant("JVM_CONSTANT_Fieldref", Integer.class);
238     final int jvmConstantMethodref = getConstant("JVM_CONSTANT_Methodref", Integer.class);
239     final int jvmConstantInterfaceMethodref = getConstant("JVM_CONSTANT_InterfaceMethodref", Integer.class);
240     final int jvmConstantNameAndType = getConstant("JVM_CONSTANT_NameAndType", Integer.class);
241     final int jvmConstantMethodHandle = getConstant("JVM_CONSTANT_MethodHandle", Integer.class);
242     final int jvmConstantMethodHandleInError = getConstant("JVM_CONSTANT_MethodHandleInError", Integer.class);
243     final int jvmConstantMethodType = getConstant("JVM_CONSTANT_MethodType", Integer.class);
244     final int jvmConstantMethodTypeInError = getConstant("JVM_CONSTANT_MethodTypeInError", Integer.class);
245     final int jvmConstantInvokeDynamic = getConstant("JVM_CONSTANT_InvokeDynamic", Integer.class);
246 
247     final int jvmConstantExternalMax = getConstant("JVM_CONSTANT_ExternalMax", Integer.class);
248     final int jvmConstantInternalMin = getConstant("JVM_CONSTANT_InternalMin", Integer.class);
249     final int jvmConstantInternalMax = getConstant("JVM_CONSTANT_InternalMax", Integer.class);
250 
251     final int heapWordSize = getConstant("HeapWordSize", Integer.class);
252 
253     final long vmSymbolsSymbols = getFieldAddress("vmSymbols::_symbols[0]", "Symbol*");
254     final int vmSymbolsFirstSID = getConstant("vmSymbols::FIRST_SID", Integer.class);
255     final int vmSymbolsSIDLimit = getConstant("vmSymbols::SID_LIMIT", Integer.class);
256 
257     final long symbolInit = getFieldValue("CompilerToVM::Data::symbol_init", Long.class);
258     final long symbolClinit = getFieldValue("CompilerToVM::Data::symbol_clinit", Long.class);
259 
260     /**
261      * Returns the symbol in the {@code vmSymbols} table at position {@code index} as a
262      * {@link String}.
263      *
264      * @param index position in the symbol table
265      * @return the symbol at position id
266      */
symbolAt(int index)267     String symbolAt(int index) {
268         HotSpotJVMCIRuntime runtime = runtime();
269         assert vmSymbolsFirstSID <= index && index < vmSymbolsSIDLimit : "index " + index + " is out of bounds";
270         int offset = index * Unsafe.ADDRESS_SIZE;
271         return runtime.getCompilerToVM().getSymbol(UNSAFE.getAddress(vmSymbolsSymbols + offset));
272     }
273 
274     final int universeBaseVtableSize = getFieldValue("CompilerToVM::Data::Universe_base_vtable_size", Integer.class, "int");
275 
276     final int baseVtableLength() {
277         return universeBaseVtableSize / (vtableEntrySize / heapWordSize);
278     }
279 
280     final int klassOffset = getFieldValue("java_lang_Class::_klass_offset", Integer.class, "int");
281 
282     /**
283      * The DataLayout header size is the same as the cell size.
284      */
285     final int dataLayoutHeaderSize = getConstant("DataLayout::cell_size", Integer.class);
286     final int dataLayoutTagOffset = getFieldOffset("DataLayout::_header._struct._tag", Integer.class, "u1");
287     final int dataLayoutFlagsOffset = getFieldOffset("DataLayout::_header._struct._flags", Integer.class, "u1");
288     final int dataLayoutBCIOffset = getFieldOffset("DataLayout::_header._struct._bci", Integer.class, "u2");
289     final int dataLayoutCellSize = getConstant("DataLayout::cell_size", Integer.class);
290 
291     final int dataLayoutNoTag = getConstant("DataLayout::no_tag", Integer.class);
292     final int dataLayoutBitDataTag = getConstant("DataLayout::bit_data_tag", Integer.class);
293     final int dataLayoutCounterDataTag = getConstant("DataLayout::counter_data_tag", Integer.class);
294     final int dataLayoutJumpDataTag = getConstant("DataLayout::jump_data_tag", Integer.class);
295     final int dataLayoutReceiverTypeDataTag = getConstant("DataLayout::receiver_type_data_tag", Integer.class);
296     final int dataLayoutVirtualCallDataTag = getConstant("DataLayout::virtual_call_data_tag", Integer.class);
297     final int dataLayoutRetDataTag = getConstant("DataLayout::ret_data_tag", Integer.class);
298     final int dataLayoutBranchDataTag = getConstant("DataLayout::branch_data_tag", Integer.class);
299     final int dataLayoutMultiBranchDataTag = getConstant("DataLayout::multi_branch_data_tag", Integer.class);
300     final int dataLayoutArgInfoDataTag = getConstant("DataLayout::arg_info_data_tag", Integer.class);
301     final int dataLayoutCallTypeDataTag = getConstant("DataLayout::call_type_data_tag", Integer.class);
302     final int dataLayoutVirtualCallTypeDataTag = getConstant("DataLayout::virtual_call_type_data_tag", Integer.class);
303     final int dataLayoutParametersTypeDataTag = getConstant("DataLayout::parameters_type_data_tag", Integer.class);
304     final int dataLayoutSpeculativeTrapDataTag = getConstant("DataLayout::speculative_trap_data_tag", Integer.class);
305 
306     final int bciProfileWidth = getFlag("BciProfileWidth", Integer.class);
307     final int typeProfileWidth = getFlag("TypeProfileWidth", Integer.class);
308     final int methodProfileWidth = getFlag("MethodProfileWidth", Integer.class);
309 
310     final int deoptReasonNone = getConstant("Deoptimization::Reason_none", Integer.class);
311     final int deoptReasonNullCheck = getConstant("Deoptimization::Reason_null_check", Integer.class);
312     final int deoptReasonRangeCheck = getConstant("Deoptimization::Reason_range_check", Integer.class);
313     final int deoptReasonClassCheck = getConstant("Deoptimization::Reason_class_check", Integer.class);
314     final int deoptReasonArrayCheck = getConstant("Deoptimization::Reason_array_check", Integer.class);
315     final int deoptReasonUnreached0 = getConstant("Deoptimization::Reason_unreached0", Integer.class);
316     final int deoptReasonTypeCheckInlining = getConstant("Deoptimization::Reason_type_checked_inlining", Integer.class);
317     final int deoptReasonOptimizedTypeCheck = getConstant("Deoptimization::Reason_optimized_type_check", Integer.class);
318     final int deoptReasonNotCompiledExceptionHandler = getConstant("Deoptimization::Reason_not_compiled_exception_handler", Integer.class);
319     final int deoptReasonUnresolved = getConstant("Deoptimization::Reason_unresolved", Integer.class);
320     final int deoptReasonJsrMismatch = getConstant("Deoptimization::Reason_jsr_mismatch", Integer.class);
321     final int deoptReasonDiv0Check = getConstant("Deoptimization::Reason_div0_check", Integer.class);
322     final int deoptReasonConstraint = getConstant("Deoptimization::Reason_constraint", Integer.class);
323     final int deoptReasonLoopLimitCheck = getConstant("Deoptimization::Reason_loop_limit_check", Integer.class);
324     final int deoptReasonAliasing = getConstant("Deoptimization::Reason_aliasing", Integer.class);
325     final int deoptReasonTransferToInterpreter = getConstant("Deoptimization::Reason_transfer_to_interpreter", Integer.class);
326     final int deoptReasonOSROffset = getConstant("Deoptimization::Reason_LIMIT", Integer.class);
327 
328     final int deoptActionNone = getConstant("Deoptimization::Action_none", Integer.class);
329     final int deoptActionMaybeRecompile = getConstant("Deoptimization::Action_maybe_recompile", Integer.class);
330     final int deoptActionReinterpret = getConstant("Deoptimization::Action_reinterpret", Integer.class);
331     final int deoptActionMakeNotEntrant = getConstant("Deoptimization::Action_make_not_entrant", Integer.class);
332     final int deoptActionMakeNotCompilable = getConstant("Deoptimization::Action_make_not_compilable", Integer.class);
333 
334     final int deoptimizationActionBits = getConstant("Deoptimization::_action_bits", Integer.class);
335     final int deoptimizationReasonBits = getConstant("Deoptimization::_reason_bits", Integer.class);
336     final int deoptimizationDebugIdBits = getConstant("Deoptimization::_debug_id_bits", Integer.class);
337     final int deoptimizationActionShift = getConstant("Deoptimization::_action_shift", Integer.class);
338     final int deoptimizationReasonShift = getConstant("Deoptimization::_reason_shift", Integer.class);
339     final int deoptimizationDebugIdShift = getConstant("Deoptimization::_debug_id_shift", Integer.class);
340 
341     final int vmIntrinsicInvokeBasic = getConstant("vmIntrinsics::_invokeBasic", Integer.class);
342     final int vmIntrinsicLinkToVirtual = getConstant("vmIntrinsics::_linkToVirtual", Integer.class);
343     final int vmIntrinsicLinkToStatic = getConstant("vmIntrinsics::_linkToStatic", Integer.class);
344     final int vmIntrinsicLinkToSpecial = getConstant("vmIntrinsics::_linkToSpecial", Integer.class);
345     final int vmIntrinsicLinkToInterface = getConstant("vmIntrinsics::_linkToInterface", Integer.class);
346 
347     final int codeInstallResultOk = getConstant("JVMCIEnv::ok", Integer.class);
348     final int codeInstallResultDependenciesFailed = getConstant("JVMCIEnv::dependencies_failed", Integer.class);
349     final int codeInstallResultDependenciesInvalid = getConstant("JVMCIEnv::dependencies_invalid", Integer.class);
350     final int codeInstallResultCacheFull = getConstant("JVMCIEnv::cache_full", Integer.class);
351     final int codeInstallResultCodeTooLarge = getConstant("JVMCIEnv::code_too_large", Integer.class);
352 
353     String getCodeInstallResultDescription(int codeInstallResult) {
354         if (codeInstallResult == codeInstallResultOk) {
355             return "ok";
356         }
357         if (codeInstallResult == codeInstallResultDependenciesFailed) {
358             return "dependencies failed";
359         }
360         if (codeInstallResult == codeInstallResultDependenciesInvalid) {
361             return "dependencies invalid";
362         }
363         if (codeInstallResult == codeInstallResultCacheFull) {
364             return "code cache is full";
365         }
366         if (codeInstallResult == codeInstallResultCodeTooLarge) {
367             return "code is too large";
368         }
369         assert false : codeInstallResult;
370         return "unknown";
371     }
372 
373     final int bitDataExceptionSeenFlag = getConstant("BitData::exception_seen_flag", Integer.class);
374     final int bitDataNullSeenFlag = getConstant("BitData::null_seen_flag", Integer.class);
375     final int methodDataCountOffset = getConstant("CounterData::count_off", Integer.class);
376     final int jumpDataTakenOffset = getConstant("JumpData::taken_off_set", Integer.class);
377     final int jumpDataDisplacementOffset = getConstant("JumpData::displacement_off_set", Integer.class);
378     final int receiverTypeDataNonprofiledCountOffset = getConstant("ReceiverTypeData::nonprofiled_count_off_set", Integer.class);
379     final int receiverTypeDataReceiverTypeRowCellCount = getConstant("ReceiverTypeData::receiver_type_row_cell_count", Integer.class);
380     final int receiverTypeDataReceiver0Offset = getConstant("ReceiverTypeData::receiver0_offset", Integer.class);
381     final int receiverTypeDataCount0Offset = getConstant("ReceiverTypeData::count0_offset", Integer.class);
382     final int branchDataNotTakenOffset = getConstant("BranchData::not_taken_off_set", Integer.class);
383     final int arrayDataArrayLenOffset = getConstant("ArrayData::array_len_off_set", Integer.class);
384     final int arrayDataArrayStartOffset = getConstant("ArrayData::array_start_off_set", Integer.class);
385     final int multiBranchDataPerCaseCellCount = getConstant("MultiBranchData::per_case_cell_count", Integer.class);
386 }
387