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 
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.api.replacements.Fold;
32 import org.graalvm.compiler.api.replacements.Fold.InjectedParameter;
33 import org.graalvm.compiler.core.common.CompressEncoding;
34 import org.graalvm.compiler.nodes.graphbuilderconf.IntrinsicContext;
35 import org.graalvm.compiler.options.OptionValues;
36 
37 import jdk.vm.ci.common.JVMCIError;
38 import jdk.vm.ci.hotspot.HotSpotResolvedJavaMethod;
39 import jdk.vm.ci.hotspot.HotSpotVMConfigStore;
40 import jdk.vm.ci.meta.MetaAccessProvider;
41 import jdk.vm.ci.meta.ResolvedJavaMethod;
42 
43 /**
44  * Used to access native configuration details.
45  */
46 public class GraalHotSpotVMConfig extends GraalHotSpotVMConfigAccess {
47 
48     /**
49      * Sentinel value to use for an {@linkplain InjectedParameter injected}
50      * {@link GraalHotSpotVMConfig} parameter to a {@linkplain Fold foldable} method.
51      */
52     public static final GraalHotSpotVMConfig INJECTED_VMCONFIG = null;
53     public static final MetaAccessProvider INJECTED_METAACCESS = null;
54     public static final OptionValues INJECTED_OPTIONVALUES = null;
55     public static final IntrinsicContext INJECTED_INTRINSIC_CONTEXT = null;
56 
GraalHotSpotVMConfig(HotSpotVMConfigStore store)57     GraalHotSpotVMConfig(HotSpotVMConfigStore store) {
58         super(store);
59 
60         assert narrowKlassShift <= logKlassAlignment;
61         assert narrowOopShift <= logMinObjAlignment();
62         oopEncoding = new CompressEncoding(narrowOopBase, narrowOopShift);
63         klassEncoding = new CompressEncoding(narrowKlassBase, narrowKlassShift);
64 
65         assert check();
66         reportErrors();
67     }
68 
69     private final CompressEncoding oopEncoding;
70     private final CompressEncoding klassEncoding;
71     private final String markWord = JDK < 14 ? "markOop" : "markWord"; // JDK-8229258
72 
73     public CompressEncoding getOopEncoding() {
74         return oopEncoding;
75     }
76 
77     public CompressEncoding getKlassEncoding() {
78         return klassEncoding;
79     }
80 
81     private final boolean isJDK11Plus = JDK >= 11;
82     private final boolean isJDK8OrJDK11Plus = JDK == 8 || isJDK11Plus;
83 
84     // Certain values were accidentally omitted in JDK 9+ only VM values
85     // in vmStructs_jvmci.cpp are exposed to JVMCI. In JDK 8, values in any
86     // vmStructs*.[cpp|hpp] file are exposed to JVMCI.
87     private final boolean gr21761 = JDK == 8 || (JVMCI ? jvmciGE(JVMCI_20_0_b03) : JDK >= 15);
88 
89     private final boolean jdk13Backport = JVMCI ? jvmciGE(JVMCI_19_3_b03) : JDK >= 13;
90 
91     public final boolean cAssertions = getConstant("ASSERT", Boolean.class);
92 
93     public final int codeEntryAlignment = getFlag("CodeEntryAlignment", Integer.class);
94     public final boolean enableContended = getFlag("EnableContended", Boolean.class);
95     public final boolean restrictContended = getFlag("RestrictContended", Boolean.class);
96     public final int contendedPaddingWidth = getFlag("ContendedPaddingWidth", Integer.class);
97     public final int fieldsAllocationStyle;
98     public final boolean compactFields;
99     {
100         // JDK-8236224
101         if (JDK >= 15) {
102             fieldsAllocationStyle = 1;
103             compactFields = true;
104         } else {
105             fieldsAllocationStyle = getFlag("FieldsAllocationStyle", Integer.class);
106             compactFields = getFlag("CompactFields", Boolean.class);
107         }
108     }
109     public final boolean verifyOops = getFlag("VerifyOops", Boolean.class);
110     public final boolean ciTime = getFlag("CITime", Boolean.class);
111     public final boolean ciTimeEach = getFlag("CITimeEach", Boolean.class);
112     public final boolean dontCompileHugeMethods = getFlag("DontCompileHugeMethods", Boolean.class);
113     public final int hugeMethodLimit = getFlag("HugeMethodLimit", Integer.class);
114     public final boolean printInlining = getFlag("PrintInlining", Boolean.class);
115     public final boolean inline = getFlag("Inline", Boolean.class);
116     public final boolean inlineNotify = JDK > 8;
117     public final boolean useFastLocking = getFlag("JVMCIUseFastLocking", Boolean.class);
118     public final boolean forceUnreachable = getFlag("ForceUnreachable", Boolean.class);
119     public final int codeSegmentSize = getFlag("CodeCacheSegmentSize", Integer.class);
120     public final boolean foldStableValues = getFlag("FoldStableValues", Boolean.class);
121     public final int maxVectorSize = getFlag("MaxVectorSize", Integer.class);
122 
123     public final boolean verifyBeforeGC = getFlag("VerifyBeforeGC", Boolean.class);
124     public final boolean verifyAfterGC = getFlag("VerifyAfterGC", Boolean.class);
125 
126     public final boolean useTLAB = getFlag("UseTLAB", Boolean.class);
127     public final boolean useBiasedLocking = getFlag("UseBiasedLocking", Boolean.class);
128     public final boolean usePopCountInstruction = getFlag("UsePopCountInstruction", Boolean.class);
129     public final boolean useAESIntrinsics = getFlag("UseAESIntrinsics", Boolean.class);
130     public final boolean useAESCTRIntrinsics = getFlag("UseAESCTRIntrinsics", Boolean.class, false, (JDK == 8 && !IS_OPENJDK) || JDK >= 9);
131     public final boolean useCRC32Intrinsics = getFlag("UseCRC32Intrinsics", Boolean.class);
132     public final boolean useCRC32CIntrinsics = getFlag("UseCRC32CIntrinsics", Boolean.class, false, JDK >= 9); // JDK-8073583
133     public final boolean useThreadLocalPolling;
134     {
135         if (JDK >= 14) {
136             // JDK-8220049, JDK-8220051
137             useThreadLocalPolling = true;
138         } else if (JDK >= 10) {
139             useThreadLocalPolling = getFlag("ThreadLocalHandshakes", Boolean.class);
140         } else {
141             useThreadLocalPolling = false;
142         }
143     }
144     private final boolean useMultiplyToLenIntrinsic = getFlag("UseMultiplyToLenIntrinsic", Boolean.class);
145     private final boolean useSHA1Intrinsics = getFlag("UseSHA1Intrinsics", Boolean.class);
146     private final boolean useSHA256Intrinsics = getFlag("UseSHA256Intrinsics", Boolean.class);
147     private final boolean useSHA512Intrinsics = getFlag("UseSHA512Intrinsics", Boolean.class);
148     private final boolean useGHASHIntrinsics = getFlag("UseGHASHIntrinsics", Boolean.class, false, isJDK8OrJDK11Plus);
149     private final boolean useBase64Intrinsics = getFlag("UseBASE64Intrinsics", Boolean.class, false, isJDK11Plus);
150     private final boolean useMontgomeryMultiplyIntrinsic = getFlag("UseMontgomeryMultiplyIntrinsic", Boolean.class, false, isJDK8OrJDK11Plus);
151     private final boolean useMontgomerySquareIntrinsic = getFlag("UseMontgomerySquareIntrinsic", Boolean.class, false, isJDK8OrJDK11Plus);
152     private final boolean useMulAddIntrinsic = getFlag("UseMulAddIntrinsic", Boolean.class, false, isJDK8OrJDK11Plus);
153     private final boolean useSquareToLenIntrinsic = getFlag("UseSquareToLenIntrinsic", Boolean.class, false, isJDK8OrJDK11Plus);
154     public final boolean useVectorizedMismatchIntrinsic = getFlag("UseVectorizedMismatchIntrinsic", Boolean.class, false, isJDK11Plus);
155     public final boolean useFMAIntrinsics = getFlag("UseFMA", Boolean.class, false, JDK >= 9);
156     public final int useAVX3Threshold = getFlag("AVX3Threshold", Integer.class, 4096, osArch.equals("amd64") && (JDK >= 14 || (JDK == 11 && JDK_UPDATE >= 6)));
157 
158     public final boolean preserveFramePointer = getFlag("PreserveFramePointer", Boolean.class);
159 
160     /*
161      * These are methods because in some JDKs the flags are visible but the stubs themselves haven't
162      * been exported so we have to check both if the flag is on and if we have the stub.
163      */
useMultiplyToLenIntrinsic()164     public boolean useMultiplyToLenIntrinsic() {
165         return useMultiplyToLenIntrinsic && multiplyToLen != 0;
166     }
167 
useSHA1Intrinsics()168     public boolean useSHA1Intrinsics() {
169         return useSHA1Intrinsics && sha1ImplCompress != 0 && sha1ImplCompressMultiBlock != 0;
170     }
171 
useSHA256Intrinsics()172     public boolean useSHA256Intrinsics() {
173         return useSHA256Intrinsics && sha256ImplCompress != 0 && sha256ImplCompressMultiBlock != 0;
174     }
175 
useSHA512Intrinsics()176     public boolean useSHA512Intrinsics() {
177         return useSHA512Intrinsics && sha512ImplCompress != 0 && sha512ImplCompressMultiBlock != 0;
178     }
179 
useGHASHIntrinsics()180     public boolean useGHASHIntrinsics() {
181         return useGHASHIntrinsics && ghashProcessBlocks != 0;
182     }
183 
useBase64Intrinsics()184     public boolean useBase64Intrinsics() {
185         return useBase64Intrinsics && base64EncodeBlock != 0;
186     }
187 
useMontgomeryMultiplyIntrinsic()188     public boolean useMontgomeryMultiplyIntrinsic() {
189         return useMontgomeryMultiplyIntrinsic && montgomeryMultiply != 0;
190     }
191 
useMontgomerySquareIntrinsic()192     public boolean useMontgomerySquareIntrinsic() {
193         return useMontgomerySquareIntrinsic && montgomerySquare != 0;
194     }
195 
useMulAddIntrinsic()196     public boolean useMulAddIntrinsic() {
197         return useMulAddIntrinsic && mulAdd != 0;
198     }
199 
useSquareToLenIntrinsic()200     public boolean useSquareToLenIntrinsic() {
201         return useSquareToLenIntrinsic && squareToLen != 0;
202     }
203 
inlineNotify()204     public boolean inlineNotify() {
205         return inlineNotify && notifyAddress != 0;
206     }
207 
inlineNotifyAll()208     public boolean inlineNotifyAll() {
209         return inlineNotify && notifyAllAddress != 0;
210     }
211 
212     public final boolean useG1GC = getFlag("UseG1GC", Boolean.class);
213     public final boolean useCMSGC = getFlag("UseConcMarkSweepGC", Boolean.class, false, JDK < 14); // JDK-8231559
214 
215     public final int allocatePrefetchStyle = getFlag("AllocatePrefetchStyle", Integer.class);
216     public final int allocatePrefetchInstr = getFlag("AllocatePrefetchInstr", Integer.class);
217     public final int allocatePrefetchLines = getFlag("AllocatePrefetchLines", Integer.class);
218     public final int allocateInstancePrefetchLines = getFlag("AllocateInstancePrefetchLines", Integer.class);
219     public final int allocatePrefetchStepSize = getFlag("AllocatePrefetchStepSize", Integer.class);
220     public final int allocatePrefetchDistance = getFlag("AllocatePrefetchDistance", Integer.class);
221 
222     private final long universeCollectedHeap = getFieldValue("CompilerToVM::Data::Universe_collectedHeap", Long.class, "CollectedHeap*");
223     private final int collectedHeapTotalCollectionsOffset = getFieldOffset("CollectedHeap::_total_collections", Integer.class, "unsigned int");
224 
gcTotalCollectionsAddress()225     public long gcTotalCollectionsAddress() {
226         return universeCollectedHeap + collectedHeapTotalCollectionsOffset;
227     }
228 
229     public final boolean useDeferredInitBarriers = getFlag("ReduceInitialCardMarks", Boolean.class);
230 
231     // Compressed Oops related values.
232     public final boolean useCompressedOops = getFlag("UseCompressedOops", Boolean.class);
233     public final boolean useCompressedClassPointers = getFlag("UseCompressedClassPointers", Boolean.class);
234 
235     public final long narrowOopBase = getFieldValue("CompilerToVM::Data::Universe_narrow_oop_base", Long.class, "address");
236     public final int narrowOopShift = getFieldValue("CompilerToVM::Data::Universe_narrow_oop_shift", Integer.class, "int");
237     public final int objectAlignment = getFlag("ObjectAlignmentInBytes", Integer.class);
238 
minObjAlignment()239     public final int minObjAlignment() {
240         return objectAlignment / heapWordSize;
241     }
242 
logMinObjAlignment()243     public final int logMinObjAlignment() {
244         return (int) (Math.log(objectAlignment) / Math.log(2));
245     }
246 
247     public final int narrowKlassSize = getFieldValue("CompilerToVM::Data::sizeof_narrowKlass", Integer.class, "int");
248     public final long narrowKlassBase = getFieldValue("CompilerToVM::Data::Universe_narrow_klass_base", Long.class, "address");
249     public final int narrowKlassShift = getFieldValue("CompilerToVM::Data::Universe_narrow_klass_shift", Integer.class, "int");
250     public final int logKlassAlignment = getConstant("LogKlassAlignmentInBytes", Integer.class);
251 
252     public final int stackShadowPages = getFlag("StackShadowPages", Integer.class);
253     public final int stackReservedPages = getFlag("StackReservedPages", Integer.class, 0, JDK >= 9);
254     public final boolean useStackBanging = getFlag("UseStackBanging", Boolean.class);
255     public final int stackBias = getConstant("STACK_BIAS", Integer.class, 0, JDK < 15);
256     public final int vmPageSize = getFieldValue("CompilerToVM::Data::vm_page_size", Integer.class, "int");
257 
258     public final int markOffset = getFieldOffset("oopDesc::_mark", Integer.class, markWord);
259     public final int hubOffset = getFieldOffset("oopDesc::_metadata._klass", Integer.class, "Klass*");
260 
261     public final int prototypeMarkWordOffset = getFieldOffset("Klass::_prototype_header", Integer.class, markWord);
262     public final int subklassOffset = getFieldOffset("Klass::_subklass", Integer.class, "Klass*");
263     public final int nextSiblingOffset = getFieldOffset("Klass::_next_sibling", Integer.class, "Klass*");
264     public final int superCheckOffsetOffset = getFieldOffset("Klass::_super_check_offset", Integer.class, "juint");
265     public final int secondarySuperCacheOffset = getFieldOffset("Klass::_secondary_super_cache", Integer.class, "Klass*");
266     public final int secondarySupersOffset = getFieldOffset("Klass::_secondary_supers", Integer.class, "Array<Klass*>*");
267 
268     public final boolean classMirrorIsHandle;
269     public final int classMirrorOffset;
270     {
271         // JDK-8186777
272         if (JDK <= 8) {
273             classMirrorIsHandle = false;
274             classMirrorOffset = getFieldOffset("Klass::_java_mirror", Integer.class, "oop");
275         } else {
276             classMirrorIsHandle = true;
277             classMirrorOffset = getFieldOffset("Klass::_java_mirror", Integer.class, "OopHandle");
278         }
279     }
280 
281     public final int klassSuperKlassOffset = getFieldOffset("Klass::_super", Integer.class, "Klass*");
282     public final int klassModifierFlagsOffset = getFieldOffset("Klass::_modifier_flags", Integer.class, "jint");
283     public final int klassAccessFlagsOffset = getFieldOffset("Klass::_access_flags", Integer.class, "AccessFlags");
284     public final int klassLayoutHelperOffset = getFieldOffset("Klass::_layout_helper", Integer.class, "jint");
285 
286     public final int klassLayoutHelperNeutralValue = getConstant("Klass::_lh_neutral_value", Integer.class);
287     public final int layoutHelperLog2ElementSizeShift = getConstant("Klass::_lh_log2_element_size_shift", Integer.class);
288     public final int layoutHelperLog2ElementSizeMask = getConstant("Klass::_lh_log2_element_size_mask", Integer.class);
289     public final int layoutHelperElementTypeShift = getConstant("Klass::_lh_element_type_shift", Integer.class);
290     public final int layoutHelperElementTypeMask = getConstant("Klass::_lh_element_type_mask", Integer.class);
291     public final int layoutHelperHeaderSizeShift = getConstant("Klass::_lh_header_size_shift", Integer.class);
292     public final int layoutHelperHeaderSizeMask = getConstant("Klass::_lh_header_size_mask", Integer.class);
293     public final int layoutHelperArrayTagShift = getConstant("Klass::_lh_array_tag_shift", Integer.class);
294     public final int layoutHelperArrayTagTypeValue = getConstant("Klass::_lh_array_tag_type_value", Integer.class);
295     public final int layoutHelperArrayTagObjectValue = getConstant("Klass::_lh_array_tag_obj_value", Integer.class);
296 
297     /**
298      * This filters out the bit that differentiates a type array from an object array.
299      */
layoutHelperElementTypePrimitiveInPlace()300     public int layoutHelperElementTypePrimitiveInPlace() {
301         return (layoutHelperArrayTagTypeValue & ~layoutHelperArrayTagObjectValue) << layoutHelperArrayTagShift;
302     }
303 
304     public final int vtableEntrySize = getFieldValue("CompilerToVM::Data::sizeof_vtableEntry", Integer.class, "int");
305     public final int vtableEntryMethodOffset = getFieldOffset("vtableEntry::_method", Integer.class, "Method*");
306 
307     public final int instanceKlassInitStateOffset = getFieldOffset("InstanceKlass::_init_state", Integer.class, "u1");
308     public final int instanceKlassInitThreadOffset = getFieldOffset("InstanceKlass::_init_thread", Integer.class, "Thread*", -1, JDK == 8 || JDK >= 15 || (JVMCI && jvmciGE(JVMCI_20_0_b03)));
309     public final int instanceKlassConstantsOffset = getFieldOffset("InstanceKlass::_constants", Integer.class, "ConstantPool*");
310     public final int instanceKlassFieldsOffset = getFieldOffset("InstanceKlass::_fields", Integer.class, "Array<u2>*");
311     public final int klassVtableStartOffset = getFieldValue("CompilerToVM::Data::Klass_vtable_start_offset", Integer.class, "int");
312     public final int klassVtableLengthOffset = getFieldValue("CompilerToVM::Data::Klass_vtable_length_offset", Integer.class, "int");
313 
314     public final int instanceKlassStateLinked = getConstant("InstanceKlass::linked", Integer.class);
315     public final int instanceKlassStateBeingInitialized = getConstant("InstanceKlass::being_initialized", Integer.class, -1, JDK == 8 || (JVMCI ? jvmciGE(JVMCI_20_0_b03) : JDK >= 14));
316     public final int instanceKlassStateFullyInitialized = getConstant("InstanceKlass::fully_initialized", Integer.class);
317 
318     public final int arrayOopDescSize = getFieldValue("CompilerToVM::Data::sizeof_arrayOopDesc", Integer.class, "int");
319 
320     /**
321      * The offset of the array length word in an array object's header.
322      *
323      * See {@code arrayOopDesc::length_offset_in_bytes()}.
324      */
arrayOopDescLengthOffset()325     public final int arrayOopDescLengthOffset() {
326         return useCompressedClassPointers ? hubOffset + narrowKlassSize : arrayOopDescSize;
327     }
328 
329     public final int arrayU1LengthOffset = getFieldOffset("Array<int>::_length", Integer.class, "int");
330     public final int arrayU1DataOffset = getFieldOffset("Array<u1>::_data", Integer.class);
331     public final int arrayU2DataOffset = getFieldOffset("Array<u2>::_data", Integer.class);
332     public final int metaspaceArrayLengthOffset = getFieldOffset("Array<Klass*>::_length", Integer.class, "int");
333     public final int metaspaceArrayBaseOffset = getFieldOffset("Array<Klass*>::_data[0]", Integer.class, "Klass*");
334 
335     public final int arrayClassElementOffset = getFieldOffset("ObjArrayKlass::_element_klass", Integer.class, "Klass*");
336 
337     public final int fieldInfoAccessFlagsOffset = getConstant("FieldInfo::access_flags_offset", Integer.class);
338     public final int fieldInfoNameIndexOffset = getConstant("FieldInfo::name_index_offset", Integer.class);
339     public final int fieldInfoSignatureIndexOffset = getConstant("FieldInfo::signature_index_offset", Integer.class);
340     public final int fieldInfoInitvalIndexOffset = getConstant("FieldInfo::initval_index_offset", Integer.class);
341     public final int fieldInfoLowPackedOffset = getConstant("FieldInfo::low_packed_offset", Integer.class);
342     public final int fieldInfoHighPackedOffset = getConstant("FieldInfo::high_packed_offset", Integer.class);
343     public final int fieldInfoFieldSlots = getConstant("FieldInfo::field_slots", Integer.class);
344 
345     public final int fieldInfoTagSize = getConstant("FIELDINFO_TAG_SIZE", Integer.class);
346 
347     public final int jvmAccMonitorMatch = getConstant("JVM_ACC_MONITOR_MATCH", Integer.class);
348     public final int jvmAccHasMonitorBytecodes = getConstant("JVM_ACC_HAS_MONITOR_BYTECODES", Integer.class);
349     public final int jvmAccHasFinalizer = getConstant("JVM_ACC_HAS_FINALIZER", Integer.class);
350     public final int jvmAccFieldInternal = getConstant("JVM_ACC_FIELD_INTERNAL", Integer.class);
351     public final int jvmAccFieldStable = getConstant("JVM_ACC_FIELD_STABLE", Integer.class);
352     public final int jvmAccFieldHasGenericSignature = getConstant("JVM_ACC_FIELD_HAS_GENERIC_SIGNATURE", Integer.class);
353     public final int jvmAccWrittenFlags = getConstant("JVM_ACC_WRITTEN_FLAGS", Integer.class);
354     public final int jvmAccSynthetic = getConstant("JVM_ACC_SYNTHETIC", Integer.class);
355     public final int jvmAccIsHiddenClass = getConstant("JVM_ACC_IS_HIDDEN_CLASS", Integer.class, 0, JDK >= 15); // JDK-8219607
356 
357     public final int jvmciCompileStateCanPostOnExceptionsOffset = getJvmciJvmtiCapabilityOffset("_jvmti_can_post_on_exceptions");
358     public final int jvmciCompileStateCanPopFrameOffset = getJvmciJvmtiCapabilityOffset("_jvmti_can_pop_frame");
359     public final int jvmciCompileStateCanAccessLocalVariablesOffset = getJvmciJvmtiCapabilityOffset("_jvmti_can_access_local_variables");
360 
361     // Integer.MIN_VALUE if not available
getJvmciJvmtiCapabilityOffset(String name)362     private int getJvmciJvmtiCapabilityOffset(String name) {
363         if (JVMCI) {
364             return getFieldOffset("JVMCICompileState::" + name, Integer.class, "jbyte");
365         }
366         if (JDK >= 13) {
367             return getFieldOffset("JVMCICompileState::" + name, Integer.class, "jbyte");
368         }
369         if (JDK == 12) {
370             return getFieldOffset("JVMCIEnv::" + name, Integer.class, "jbyte");
371         }
372         return Integer.MIN_VALUE;
373     }
374 
375     public final int threadTlabOffset = getFieldOffset("Thread::_tlab", Integer.class, "ThreadLocalAllocBuffer");
376     public final int javaThreadAnchorOffset = getFieldOffset("JavaThread::_anchor", Integer.class, "JavaFrameAnchor");
377     public final int javaThreadShouldPostOnExceptionsFlagOffset = getFieldOffset("JavaThread::_should_post_on_exceptions_flag", Integer.class, "int", Integer.MIN_VALUE, JVMCI || JDK >= 12);
378     public final int threadObjectOffset = getFieldOffset("JavaThread::_threadObj", Integer.class, "oop");
379     public final int osThreadOffset = getFieldOffset("JavaThread::_osthread", Integer.class, "OSThread*");
380     public final int threadIsMethodHandleReturnOffset = getFieldOffset("JavaThread::_is_method_handle_return", Integer.class, "int");
381     public final int threadObjectResultOffset = getFieldOffset("JavaThread::_vm_result", Integer.class, "oop");
382     public final int jvmciCountersThreadOffset = getFieldOffset("JavaThread::_jvmci_counters", Integer.class, "jlong*");
383     public final int doingUnsafeAccessOffset = getFieldOffset("JavaThread::_doing_unsafe_access", Integer.class, "bool", Integer.MAX_VALUE, JVMCI || JDK >= 14);
384     public final int javaThreadReservedStackActivationOffset = JDK <= 8 ? 0 : getFieldOffset("JavaThread::_reserved_stack_activation", Integer.class, "address"); // JDK-8046936
385     public final int jniEnvironmentOffset = getFieldOffset("JavaThread::_jni_environment", Integer.class, "JNIEnv", Integer.MIN_VALUE, JVMCI || JDK >= 14);
386 
requiresReservedStackCheck(List<ResolvedJavaMethod> methods)387     public boolean requiresReservedStackCheck(List<ResolvedJavaMethod> methods) {
388         if (enableStackReservedZoneAddress != 0 && methods != null) {
389             for (ResolvedJavaMethod method : methods) {
390                 if (((HotSpotResolvedJavaMethod) method).hasReservedStackAccess()) {
391                     return true;
392                 }
393             }
394         }
395         return false;
396     }
397 
398     /**
399      * An invalid value for {@link #rtldDefault}.
400      */
401     public static final long INVALID_RTLD_DEFAULT_HANDLE = 0xDEADFACE;
402 
403     /**
404      * Address of the library lookup routine. The C signature of this routine is:
405      *
406      * <pre>
407      *     void* (const char *filename, char *ebuf, int ebuflen)
408      * </pre>
409      */
410     public final long dllLoad = getAddress("os::dll_load");
411 
412     /**
413      * Address of the library lookup routine. The C signature of this routine is:
414      *
415      * <pre>
416      *     void* (void* handle, const char* name)
417      * </pre>
418      */
419     public final long dllLookup = getAddress("os::dll_lookup");
420 
421     /**
422      * A pseudo-handle which when used as the first argument to {@link #dllLookup} means lookup will
423      * return the first occurrence of the desired symbol using the default library search order. If
424      * this field is {@value #INVALID_RTLD_DEFAULT_HANDLE}, then this capability is not supported on
425      * the current platform.
426      */
427     public final long rtldDefault = getAddress("RTLD_DEFAULT", INVALID_RTLD_DEFAULT_HANDLE, osName.equals("darwin") || osName.equals("linux") || osName.equals("bsd"));
428 
429     /**
430      * This field is used to pass exception objects into and out of the runtime system during
431      * exception handling for compiled code.
432      */
433     public final int threadExceptionOopOffset = getFieldOffset("JavaThread::_exception_oop", Integer.class, "oop");
434     public final int threadExceptionPcOffset = getFieldOffset("JavaThread::_exception_pc", Integer.class, "address");
435     public final int pendingExceptionOffset = getFieldOffset("ThreadShadow::_pending_exception", Integer.class, "oop");
436 
437     public final int pendingDeoptimizationOffset = getFieldOffset("JavaThread::_pending_deoptimization", Integer.class, "int");
438     public final int pendingTransferToInterpreterOffset = getFieldOffset("JavaThread::_pending_transfer_to_interpreter", Integer.class, "bool");
439 
440     private final int javaFrameAnchorLastJavaSpOffset = getFieldOffset("JavaFrameAnchor::_last_Java_sp", Integer.class, "intptr_t*");
441     private final int javaFrameAnchorLastJavaPcOffset = getFieldOffset("JavaFrameAnchor::_last_Java_pc", Integer.class, "address");
442 
443     public final int pendingFailedSpeculationOffset;
444     {
445         String name = "JavaThread::_pending_failed_speculation";
446         int offset = -1;
447         try {
448             offset = getFieldOffset(name, Integer.class, "jlong");
449         } catch (JVMCIError e) {
450             try {
451                 offset = getFieldOffset(name, Integer.class, "long");
452             } catch (JVMCIError e2) {
453             }
454         }
455         if (offset == -1) {
456             throw new JVMCIError("cannot get offset of field " + name + " with type long or jlong");
457         }
458         pendingFailedSpeculationOffset = offset;
459     }
460 
threadLastJavaSpOffset()461     public int threadLastJavaSpOffset() {
462         return javaThreadAnchorOffset + javaFrameAnchorLastJavaSpOffset;
463     }
464 
threadLastJavaPcOffset()465     public int threadLastJavaPcOffset() {
466         return javaThreadAnchorOffset + javaFrameAnchorLastJavaPcOffset;
467     }
468 
threadLastJavaFpOffset()469     public int threadLastJavaFpOffset() {
470         assert osArch.equals("aarch64") || osArch.equals("amd64");
471         return javaThreadAnchorOffset + getFieldOffset("JavaFrameAnchor::_last_Java_fp", Integer.class, "intptr_t*");
472     }
473 
threadJavaFrameAnchorFlagsOffset()474     public int threadJavaFrameAnchorFlagsOffset() {
475         assert osArch.equals("sparc");
476         return javaThreadAnchorOffset + getFieldOffset("JavaFrameAnchor::_flags", Integer.class, "int");
477     }
478 
479     public final int runtimeCallStackSize = getConstant("frame::arg_reg_save_area_bytes", Integer.class, 0, osArch.equals("amd64"));
480     public final int frameInterpreterFrameSenderSpOffset = getConstant("frame::interpreter_frame_sender_sp_offset", Integer.class, 0, osArch.equals("amd64"));
481     public final int frameInterpreterFrameLastSpOffset = getConstant("frame::interpreter_frame_last_sp_offset", Integer.class, 0, osArch.equals("amd64"));
482 
483     public final int osThreadInterruptedOffset = getFieldOffset("OSThread::_interrupted", Integer.class, "jint", Integer.MAX_VALUE, JDK < 14);
484 
485     public final long markWordHashShift = getConstant(markWordField("hash_shift"), Long.class);
486 
487     public final int biasedLockMaskInPlace = getConstant(markWordField("biased_lock_mask_in_place"), Integer.class);
488     public final int ageMaskInPlace = getConstant(markWordField("age_mask_in_place"), Integer.class);
489     public final int epochMaskInPlace = getConstant(markWordField("epoch_mask_in_place"), Integer.class);
490     public final long markWordHashMask = getConstant(markWordField("hash_mask"), Long.class);
491     public final long markWordHashMaskInPlace = getConstant(markWordField("hash_mask_in_place"), Long.class);
492 
493     public final int unlockedMask = getConstant(markWordField("unlocked_value"), Integer.class);
494     public final int monitorMask = getConstant(markWordField("monitor_value"), Integer.class, -1, gr21761);
495     public final int biasedLockPattern = getConstant(markWordField("biased_lock_pattern"), Integer.class);
496 
497     // This field has no type in vmStructs.cpp
498     public final int objectMonitorOwner = getFieldOffset("ObjectMonitor::_owner", Integer.class, null, -1, gr21761);
499     public final int objectMonitorRecursions = getFieldOffset("ObjectMonitor::_recursions", Integer.class, "intptr_t", -1, gr21761);
500     public final int objectMonitorCxq = getFieldOffset("ObjectMonitor::_cxq", Integer.class, "ObjectWaiter*", -1, jdk13Backport);
501     public final int objectMonitorEntryList = getFieldOffset("ObjectMonitor::_EntryList", Integer.class, "ObjectWaiter*", -1, jdk13Backport);
502     public final int objectMonitorSucc = getFieldOffset("ObjectMonitor::_succ", Integer.class, "Thread*", -1, jdk13Backport);
503 
504     public final int markWordNoHashInPlace = getConstant(markWordField("no_hash_in_place"), Integer.class);
505     public final int markWordNoLockInPlace = getConstant(markWordField("no_lock_in_place"), Integer.class);
506 
507     /**
508      * See {@code markOopDesc::prototype()}/{@code markWord::prototype()}.
509      */
arrayPrototypeMarkWord()510     public long arrayPrototypeMarkWord() {
511         return markWordNoHashInPlace | markWordNoLockInPlace;
512     }
513 
514     /**
515      * See {@code markOopDesc::copy_set_hash()}/{@code markWord::copy_set_hash()}.
516      */
tlabIntArrayMarkWord()517     public long tlabIntArrayMarkWord() {
518         long tmp = arrayPrototypeMarkWord() & (~markWordHashMaskInPlace);
519         tmp |= ((0x2 & markWordHashMask) << markWordHashShift);
520         return tmp;
521     }
522 
markWordField(String simpleName)523     private static String markWordField(String simpleName) {
524         return (JDK < 14 ? "markOopDesc::" : "markWord::") + simpleName;
525     }
526 
527     /**
528      * Mark word right shift to get identity hash code.
529      */
530     public final int identityHashCodeShift = getConstant(markWordField("hash_shift"), Integer.class);
531 
532     /**
533      * Identity hash code value when uninitialized.
534      */
535     public final int uninitializedIdentityHashCodeValue = getConstant(markWordField("no_hash"), Integer.class);
536 
537     public final int methodAccessFlagsOffset = getFieldOffset("Method::_access_flags", Integer.class, "AccessFlags");
538     public final int methodConstMethodOffset = getFieldOffset("Method::_constMethod", Integer.class, "ConstMethod*");
539     public final int methodIntrinsicIdOffset = getFieldOffset("Method::_intrinsic_id", Integer.class, JDK <= 8 ? "u1" : "u2");
540     public final int methodFlagsOffset = getFieldOffset("Method::_flags", Integer.class, JDK <= 8 ? "u1" : "u2");
541     public final int methodVtableIndexOffset = getFieldOffset("Method::_vtable_index", Integer.class, "int");
542 
543     public final int methodCountersOffset = getFieldOffset("Method::_method_counters", Integer.class, "MethodCounters*");
544     public final int methodDataOffset = getFieldOffset("Method::_method_data", Integer.class, "MethodData*");
545     public final int methodCompiledEntryOffset = getFieldOffset("Method::_from_compiled_entry", Integer.class, "address");
546     public final int methodCodeOffset = getFieldOffset("Method::_code", Integer.class, JDK <= 8 ? "nmethod*" : "CompiledMethod*");
547 
548     public final int methodFlagsCallerSensitive = getConstant("Method::_caller_sensitive", Integer.class);
549     public final int methodFlagsForceInline = getConstant("Method::_force_inline", Integer.class);
550     public final int methodFlagsDontInline = getConstant("Method::_dont_inline", Integer.class);
551     public final int methodFlagsHidden = getConstant("Method::_hidden", Integer.class);
552     public final int nonvirtualVtableIndex = getConstant("Method::nonvirtual_vtable_index", Integer.class);
553     public final int invalidVtableIndex = getConstant("Method::invalid_vtable_index", Integer.class);
554 
555     public final int invocationCounterOffset = getFieldOffset("MethodCounters::_invocation_counter", Integer.class, "InvocationCounter");
556     public final int backedgeCounterOffset = getFieldOffset("MethodCounters::_backedge_counter", Integer.class, "InvocationCounter");
557     public final int invocationCounterIncrement = JDK <= 8 ? 0 : getConstant("InvocationCounter::count_increment", Integer.class);
558     public final int invocationCounterShift = JDK <= 8 ? 0 : getConstant("InvocationCounter::count_shift", Integer.class);
559 
560     public final int nmethodEntryOffset = getFieldOffset("nmethod::_verified_entry_point", Integer.class, "address");
561     public final int compilationLevelFullOptimization = getConstant("CompLevel_full_optimization", Integer.class);
562 
563     public final int constantPoolSize = getFieldValue("CompilerToVM::Data::sizeof_ConstantPool", Integer.class, "int");
564     public final int constantPoolLengthOffset = getFieldOffset("ConstantPool::_length", Integer.class, "int");
565 
566     public final int heapWordSize = getConstant("HeapWordSize", Integer.class);
567 
568     /**
569      * Bit pattern that represents a non-oop. Neither the high bits nor the low bits of this value
570      * are allowed to look like (respectively) the high or low bits of a real oop.
571      */
572     public final long nonOopBits = getFieldValue("CompilerToVM::Data::Universe_non_oop_bits", Long.class, "void*");
573 
574     public final long verifyOopCounterAddress = getFieldAddress("StubRoutines::_verify_oop_count", "jint");
575     public final long verifyOopMask = getFieldValue("CompilerToVM::Data::Universe_verify_oop_mask", Long.class, "uintptr_t");
576     public final long verifyOopBits = getFieldValue("CompilerToVM::Data::Universe_verify_oop_bits", Long.class, "uintptr_t");
577 
578     public final int logOfHRGrainBytes = getFieldValue("HeapRegion::LogOfHRGrainBytes", Integer.class, "int");
579 
580     public final int cardtableShift = getFieldValue("CompilerToVM::Data::cardtable_shift", Integer.class, "int");
581     public final long cardtableStartAddress;
582     {
583         // JDK-8237497
584         if (JDK < 15) {
585             cardtableStartAddress = getFieldValue("CompilerToVM::Data::cardtable_start_address", Long.class, "jbyte*");
586         } else {
587             cardtableStartAddress = getFieldValue("CompilerToVM::Data::cardtable_start_address", Long.class, "CardTable::CardValue*");
588         }
589     }
590 
591     /**
592      * This is the largest stack offset encodeable in an OopMapValue. Offsets larger than this will
593      * throw an exception during code installation.
594      */
595     public final int maxOopMapStackOffset = getFieldValue("CompilerToVM::Data::_max_oop_map_stack_offset", Integer.class, "int");
596 
597     public final long safepointPollingAddress = getFieldValue("os::_polling_page", Long.class, "address");
598 
599     // G1 Collector Related Values.
600     public final byte dirtyCardValue;
601     public final byte g1YoungCardValue;
602     public final int g1SATBQueueMarkingOffset;
603     public final int g1SATBQueueIndexOffset;
604     public final int g1SATBQueueBufferOffset;
605     public final int g1CardQueueIndexOffset;
606     public final int g1CardQueueBufferOffset;
607     {
608         if (JDK <= 8) {
609             int dirtyCardQueueBufferOffset = getFieldOffset("PtrQueue::_buf", Integer.class, "void**");
610             int dirtyCardQueueIndexOffset = getFieldOffset("PtrQueue::_index", Integer.class, "size_t");
611             int satbMarkQueueBufferOffset = dirtyCardQueueBufferOffset;
612             int satbMarkQueueIndexOffset = dirtyCardQueueIndexOffset;
613             int satbMarkQueueActiveOffset = getFieldOffset("PtrQueue::_active", Integer.class, "bool");
614             int javaThreadSatbMarkQueueOffset = getFieldOffset("JavaThread::_satb_mark_queue", Integer.class);
615             int javaThreadDirtyCardQueueOffset = getFieldOffset("JavaThread::_dirty_card_queue", Integer.class, "DirtyCardQueue");
616 
617             dirtyCardValue = getFieldValue("CompilerToVM::Data::dirty_card", Byte.class, "int");
618             g1YoungCardValue = getFieldValue("CompilerToVM::Data::g1_young_card", Byte.class, "int");
619             g1CardQueueIndexOffset = javaThreadDirtyCardQueueOffset + dirtyCardQueueIndexOffset;
620             g1CardQueueBufferOffset = javaThreadDirtyCardQueueOffset + dirtyCardQueueBufferOffset;
621             g1SATBQueueMarkingOffset = javaThreadSatbMarkQueueOffset + satbMarkQueueActiveOffset;
622             g1SATBQueueIndexOffset = javaThreadSatbMarkQueueOffset + satbMarkQueueIndexOffset;
623             g1SATBQueueBufferOffset = javaThreadSatbMarkQueueOffset + satbMarkQueueBufferOffset;
624         } else {
625             dirtyCardValue = getConstant("CardTable::dirty_card", Byte.class);
626             g1YoungCardValue = getConstant("G1CardTable::g1_young_gen", Byte.class);
627             g1SATBQueueMarkingOffset = getConstant("G1ThreadLocalData::satb_mark_queue_active_offset", Integer.class);
628             g1SATBQueueIndexOffset = getConstant("G1ThreadLocalData::satb_mark_queue_index_offset", Integer.class);
629             g1SATBQueueBufferOffset = getConstant("G1ThreadLocalData::satb_mark_queue_buffer_offset", Integer.class);
630             g1CardQueueIndexOffset = getConstant("G1ThreadLocalData::dirty_card_queue_index_offset", Integer.class);
631             g1CardQueueBufferOffset = getConstant("G1ThreadLocalData::dirty_card_queue_buffer_offset", Integer.class);
632         }
633     }
634 
635     public final int klassOffset = getFieldValue("java_lang_Class::_klass_offset", Integer.class, "int");
636     public final int arrayKlassOffset = getFieldValue("java_lang_Class::_array_klass_offset", Integer.class, "int");
637 
638     public final int basicLockSize = getFieldValue("CompilerToVM::Data::sizeof_BasicLock", Integer.class, "int");
639     public final int basicLockDisplacedHeaderOffset = getFieldOffset("BasicLock::_displaced_header", Integer.class, markWord);
640 
641     public final int threadAllocatedBytesOffset = getFieldOffset("Thread::_allocated_bytes", Integer.class, "jlong");
642     public final int threadPollingPageOffset;
643     {
644         // JDK-8237497
645         if (JDK < 15) {
646             threadPollingPageOffset = getFieldOffset("Thread::_polling_page", Integer.class, "address", -1, JDK >= 10);
647         } else {
648             threadPollingPageOffset = getFieldOffset("Thread::_polling_page", Integer.class, "volatile void*");
649         }
650     }
651 
652     public final int tlabRefillWasteIncrement = getFlag("TLABWasteIncrement", Integer.class);
653 
654     private final int threadLocalAllocBufferStartOffset = getFieldOffset("ThreadLocalAllocBuffer::_start", Integer.class, "HeapWord*");
655     private final int threadLocalAllocBufferEndOffset = getFieldOffset("ThreadLocalAllocBuffer::_end", Integer.class, "HeapWord*");
656     private final int threadLocalAllocBufferTopOffset = getFieldOffset("ThreadLocalAllocBuffer::_top", Integer.class, "HeapWord*");
657     private final int threadLocalAllocBufferPfTopOffset = getFieldOffset("ThreadLocalAllocBuffer::_pf_top", Integer.class, "HeapWord*");
658     private final int threadLocalAllocBufferSlowAllocationsOffset = getFieldOffset("ThreadLocalAllocBuffer::_slow_allocations", Integer.class, "unsigned");
659     private final int threadLocalAllocBufferFastRefillWasteOffset = getFieldOffset("ThreadLocalAllocBuffer::_fast_refill_waste", Integer.class, "unsigned");
660     private final int threadLocalAllocBufferNumberOfRefillsOffset = getFieldOffset("ThreadLocalAllocBuffer::_number_of_refills", Integer.class, "unsigned");
661     private final int threadLocalAllocBufferRefillWasteLimitOffset = getFieldOffset("ThreadLocalAllocBuffer::_refill_waste_limit", Integer.class, "size_t");
662     private final int threadLocalAllocBufferDesiredSizeOffset = getFieldOffset("ThreadLocalAllocBuffer::_desired_size", Integer.class, "size_t");
663 
tlabSlowAllocationsOffset()664     public int tlabSlowAllocationsOffset() {
665         return threadTlabOffset + threadLocalAllocBufferSlowAllocationsOffset;
666     }
667 
tlabFastRefillWasteOffset()668     public int tlabFastRefillWasteOffset() {
669         return threadTlabOffset + threadLocalAllocBufferFastRefillWasteOffset;
670     }
671 
tlabNumberOfRefillsOffset()672     public int tlabNumberOfRefillsOffset() {
673         return threadTlabOffset + threadLocalAllocBufferNumberOfRefillsOffset;
674     }
675 
tlabRefillWasteLimitOffset()676     public int tlabRefillWasteLimitOffset() {
677         return threadTlabOffset + threadLocalAllocBufferRefillWasteLimitOffset;
678     }
679 
threadTlabSizeOffset()680     public int threadTlabSizeOffset() {
681         return threadTlabOffset + threadLocalAllocBufferDesiredSizeOffset;
682     }
683 
threadTlabStartOffset()684     public int threadTlabStartOffset() {
685         return threadTlabOffset + threadLocalAllocBufferStartOffset;
686     }
687 
threadTlabEndOffset()688     public int threadTlabEndOffset() {
689         return threadTlabOffset + threadLocalAllocBufferEndOffset;
690     }
691 
threadTlabTopOffset()692     public int threadTlabTopOffset() {
693         return threadTlabOffset + threadLocalAllocBufferTopOffset;
694     }
695 
threadTlabPfTopOffset()696     public int threadTlabPfTopOffset() {
697         return threadTlabOffset + threadLocalAllocBufferPfTopOffset;
698     }
699 
700     public final int tlabAlignmentReserve = getFieldValue("CompilerToVM::Data::ThreadLocalAllocBuffer_alignment_reserve", Integer.class, "size_t");
701 
702     public final boolean tlabStats = getFlag("TLABStats", Boolean.class);
703 
704     // We set 0x10 as default value to disable DC ZVA if this field is not present in HotSpot.
705     // ARMv8-A architecture reference manual D12.2.35 Data Cache Zero ID register says:
706     // * BS, bits [3:0] indicate log2 of the DC ZVA block size in (4-byte) words.
707     // * DZP, bit [4] of indicates whether use of DC ZVA instruction is prohibited.
708     public final int psrInfoDczidValue = getFieldValue("VM_Version::_psr_info.dczid_el0", Integer.class, "uint32_t", 0x10, (JVMCI ? jvmciGE(JVMCI_19_3_b04) : JDK >= 14) && osArch.equals("aarch64"));
709 
710     // FIXME This is only temporary until the GC code is changed.
711     public final boolean inlineContiguousAllocationSupported = getFieldValue("CompilerToVM::Data::_supports_inline_contig_alloc", Boolean.class);
712     public final long heapEndAddress = getFieldValue("CompilerToVM::Data::_heap_end_addr", Long.class, "HeapWord**");
713     public final long heapTopAddress = getFieldValue("CompilerToVM::Data::_heap_top_addr", Long.class, JDK <= 8 ? "HeapWord**" : "HeapWord* volatile*");
714 
715     public final boolean cmsIncrementalMode = getFlag("CMSIncrementalMode", Boolean.class, false, JDK <= 8);
716 
717     public final long inlineCacheMissStub = getFieldValue("CompilerToVM::Data::SharedRuntime_ic_miss_stub", Long.class, "address");
718     public final long handleWrongMethodStub = getFieldValue("CompilerToVM::Data::SharedRuntime_handle_wrong_method_stub", Long.class, "address");
719 
720     public final long deoptBlobUnpack = getFieldValue("CompilerToVM::Data::SharedRuntime_deopt_blob_unpack", Long.class, "address");
721     public final long deoptBlobUnpackWithExceptionInTLS = getFieldValue("CompilerToVM::Data::SharedRuntime_deopt_blob_unpack_with_exception_in_tls", Long.class, "address", 0L,
722                     JVMCI ? jvmciGE(JVMCI_19_3_b07) : JDK >= 14);
723     public final long deoptBlobUncommonTrap = getFieldValue("CompilerToVM::Data::SharedRuntime_deopt_blob_uncommon_trap", Long.class, "address");
724 
725     public final long codeCacheLowBound = getFieldValue(JDK == 8 ? "CompilerToVM::Data::CodeCache_low_bound" : "CodeCache::_low_bound", Long.class, "address");
726     public final long codeCacheHighBound = getFieldValue(JDK == 8 ? "CompilerToVM::Data::CodeCache_high_bound" : "CodeCache::_high_bound", Long.class, "address");
727 
728     public final long aescryptEncryptBlockStub = getFieldValue("StubRoutines::_aescrypt_encryptBlock", Long.class, "address");
729     public final long aescryptDecryptBlockStub = getFieldValue("StubRoutines::_aescrypt_decryptBlock", Long.class, "address");
730     public final long cipherBlockChainingEncryptAESCryptStub = getFieldValue("StubRoutines::_cipherBlockChaining_encryptAESCrypt", Long.class, "address");
731     public final long cipherBlockChainingDecryptAESCryptStub = getFieldValue("StubRoutines::_cipherBlockChaining_decryptAESCrypt", Long.class, "address");
732     public final long updateBytesCRC32Stub = getFieldValue("StubRoutines::_updateBytesCRC32", Long.class, "address");
733     public final long crcTableAddress = getFieldValue("StubRoutines::_crc_table_adr", Long.class, "address");
734 
735     public final long sha1ImplCompress = getFieldValue("StubRoutines::_sha1_implCompress", Long.class, "address");
736     public final long sha1ImplCompressMultiBlock = getFieldValue("StubRoutines::_sha1_implCompressMB", Long.class, "address");
737     public final long sha256ImplCompress = getFieldValue("StubRoutines::_sha256_implCompress", Long.class, "address");
738     public final long sha256ImplCompressMultiBlock = getFieldValue("StubRoutines::_sha256_implCompressMB", Long.class, "address");
739     public final long sha512ImplCompress = getFieldValue("StubRoutines::_sha512_implCompress", Long.class, "address");
740     public final long sha512ImplCompressMultiBlock = getFieldValue("StubRoutines::_sha512_implCompressMB", Long.class, "address");
741     public final long multiplyToLen = getFieldValue("StubRoutines::_multiplyToLen", Long.class, "address");
742 
743     public final long counterModeAESCrypt = getFieldValue("StubRoutines::_counterMode_AESCrypt", Long.class, "address", 0L, (JDK == 8 && !IS_OPENJDK) || JDK >= 9);
744     public final long ghashProcessBlocks = getFieldValue("StubRoutines::_ghash_processBlocks", Long.class, "address", 0L, isJDK8OrJDK11Plus);
745     public final long base64EncodeBlock = getFieldValue("StubRoutines::_base64_encodeBlock", Long.class, "address", 0L, isJDK11Plus);
746     public final long crc32cTableTddr = getFieldValue("StubRoutines::_crc32c_table_addr", Long.class, "address", 0L, isJDK11Plus);
747     public final long updateBytesCRC32C = getFieldValue("StubRoutines::_updateBytesCRC32C", Long.class, "address", 0L, isJDK11Plus);
748     public final long updateBytesAdler32 = getFieldValue("StubRoutines::_updateBytesAdler32", Long.class, "address", 0L, isJDK11Plus);
749     public final long squareToLen = getFieldValue("StubRoutines::_squareToLen", Long.class, "address");
750     public final long mulAdd = getFieldValue("StubRoutines::_mulAdd", Long.class, "address");
751     public final long montgomeryMultiply = getFieldValue("StubRoutines::_montgomeryMultiply", Long.class, "address");
752     public final long montgomerySquare = getFieldValue("StubRoutines::_montgomerySquare", Long.class, "address");
753     public final long vectorizedMismatch = getFieldValue("StubRoutines::_vectorizedMismatch", Long.class, "address", 0L, isJDK11Plus);
754 
755     public final long throwDelayedStackOverflowErrorEntry = JDK <= 8 ? 0 : getFieldValue("StubRoutines::_throw_delayed_StackOverflowError_entry", Long.class, "address");
756 
757     public final long jbyteArraycopy = getFieldValue("StubRoutines::_jbyte_arraycopy", Long.class, "address");
758     public final long jshortArraycopy = getFieldValue("StubRoutines::_jshort_arraycopy", Long.class, "address");
759     public final long jintArraycopy = getFieldValue("StubRoutines::_jint_arraycopy", Long.class, "address");
760     public final long jlongArraycopy = getFieldValue("StubRoutines::_jlong_arraycopy", Long.class, "address");
761     public final long oopArraycopy = getFieldValue("StubRoutines::_oop_arraycopy", Long.class, "address");
762     public final long oopArraycopyUninit = getFieldValue("StubRoutines::_oop_arraycopy_uninit", Long.class, "address");
763     public final long jbyteDisjointArraycopy = getFieldValue("StubRoutines::_jbyte_disjoint_arraycopy", Long.class, "address");
764     public final long jshortDisjointArraycopy = getFieldValue("StubRoutines::_jshort_disjoint_arraycopy", Long.class, "address");
765     public final long jintDisjointArraycopy = getFieldValue("StubRoutines::_jint_disjoint_arraycopy", Long.class, "address");
766     public final long jlongDisjointArraycopy = getFieldValue("StubRoutines::_jlong_disjoint_arraycopy", Long.class, "address");
767     public final long oopDisjointArraycopy = getFieldValue("StubRoutines::_oop_disjoint_arraycopy", Long.class, "address");
768     public final long oopDisjointArraycopyUninit = getFieldValue("StubRoutines::_oop_disjoint_arraycopy_uninit", Long.class, "address");
769     public final long jbyteAlignedArraycopy = getFieldValue("StubRoutines::_arrayof_jbyte_arraycopy", Long.class, "address");
770     public final long jshortAlignedArraycopy = getFieldValue("StubRoutines::_arrayof_jshort_arraycopy", Long.class, "address");
771     public final long jintAlignedArraycopy = getFieldValue("StubRoutines::_arrayof_jint_arraycopy", Long.class, "address");
772     public final long jlongAlignedArraycopy = getFieldValue("StubRoutines::_arrayof_jlong_arraycopy", Long.class, "address");
773     public final long oopAlignedArraycopy = getFieldValue("StubRoutines::_arrayof_oop_arraycopy", Long.class, "address");
774     public final long oopAlignedArraycopyUninit = getFieldValue("StubRoutines::_arrayof_oop_arraycopy_uninit", Long.class, "address");
775     public final long jbyteAlignedDisjointArraycopy = getFieldValue("StubRoutines::_arrayof_jbyte_disjoint_arraycopy", Long.class, "address");
776     public final long jshortAlignedDisjointArraycopy = getFieldValue("StubRoutines::_arrayof_jshort_disjoint_arraycopy", Long.class, "address");
777     public final long jintAlignedDisjointArraycopy = getFieldValue("StubRoutines::_arrayof_jint_disjoint_arraycopy", Long.class, "address");
778     public final long jlongAlignedDisjointArraycopy = getFieldValue("StubRoutines::_arrayof_jlong_disjoint_arraycopy", Long.class, "address");
779     public final long oopAlignedDisjointArraycopy = getFieldValue("StubRoutines::_arrayof_oop_disjoint_arraycopy", Long.class, "address");
780     public final long oopAlignedDisjointArraycopyUninit = getFieldValue("StubRoutines::_arrayof_oop_disjoint_arraycopy_uninit", Long.class, "address");
781     public final long checkcastArraycopy = getFieldValue("StubRoutines::_checkcast_arraycopy", Long.class, "address");
782     public final long checkcastArraycopyUninit = getFieldValue("StubRoutines::_checkcast_arraycopy_uninit", Long.class, "address");
783     public final long unsafeArraycopy = getFieldValue("StubRoutines::_unsafe_arraycopy", Long.class, "address");
784     public final long genericArraycopy = getFieldValue("StubRoutines::_generic_arraycopy", Long.class, "address");
785 
786     // Allocation stubs that throw an exception when allocation fails
787     public final long newInstanceAddress = getAddress("JVMCIRuntime::new_instance");
788     public final long newArrayAddress = getAddress("JVMCIRuntime::new_array");
789     public final long newMultiArrayAddress = getAddress("JVMCIRuntime::new_multi_array");
790     public final long dynamicNewInstanceAddress = getAddress("JVMCIRuntime::dynamic_new_instance");
791 
792     // Allocation stubs that return null when allocation fails
793     public final long newInstanceOrNullAddress = getAddress("JVMCIRuntime::new_instance_or_null", 0L, JVMCI || JDK >= 12 || (!IS_OPENJDK && JDK == 11 && JDK_UPDATE >= 7));
794     public final long newArrayOrNullAddress = getAddress("JVMCIRuntime::new_array_or_null", 0L, JVMCI || JDK >= 12 || (!IS_OPENJDK && JDK == 11 && JDK_UPDATE >= 7));
795     public final long newMultiArrayOrNullAddress = getAddress("JVMCIRuntime::new_multi_array_or_null", 0L, JVMCI || JDK >= 12 || (!IS_OPENJDK && JDK == 11 && JDK_UPDATE >= 7));
796     public final long dynamicNewInstanceOrNullAddress = getAddress("JVMCIRuntime::dynamic_new_instance_or_null", 0L, JVMCI || JDK >= 12 || (!IS_OPENJDK && JDK == 11 && JDK_UPDATE >= 7));
797 
areNullAllocationStubsAvailable()798     public boolean areNullAllocationStubsAvailable() {
799         return newInstanceOrNullAddress != 0L;
800     }
801 
802     /**
803      * Checks that HotSpot implements all or none of the allocate-or-null stubs.
804      */
checkNullAllocationStubs()805     private boolean checkNullAllocationStubs() {
806         if (newInstanceOrNullAddress == 0L) {
807             assert newArrayOrNullAddress == 0L;
808             assert newMultiArrayOrNullAddress == 0L;
809             assert dynamicNewInstanceOrNullAddress == 0L;
810         } else {
811             assert newArrayOrNullAddress != 0L;
812             assert newMultiArrayOrNullAddress != 0L;
813             assert dynamicNewInstanceOrNullAddress != 0L;
814         }
815         return true;
816     }
817 
818     public final long vmMessageAddress = getAddress("JVMCIRuntime::vm_message");
819     public final long identityHashCodeAddress = getAddress("JVMCIRuntime::identity_hash_code");
820     public final long exceptionHandlerForPcAddress = getAddress("JVMCIRuntime::exception_handler_for_pc");
821     public final long monitorenterAddress = getAddress("JVMCIRuntime::monitorenter");
822     public final long monitorexitAddress = getAddress("JVMCIRuntime::monitorexit");
823     public final long notifyAddress = getAddress("JVMCIRuntime::object_notify", 0L, JDK >= 11);
824     public final long notifyAllAddress = getAddress("JVMCIRuntime::object_notifyAll", 0L, JDK >= 11);
825     public final long throwAndPostJvmtiExceptionAddress = getAddress("JVMCIRuntime::throw_and_post_jvmti_exception");
826     public final long throwKlassExternalNameExceptionAddress = getAddress("JVMCIRuntime::throw_klass_external_name_exception");
827     public final long throwClassCastExceptionAddress = getAddress("JVMCIRuntime::throw_class_cast_exception");
828     public final long logPrimitiveAddress = getAddress("JVMCIRuntime::log_primitive");
829     public final long logObjectAddress = getAddress("JVMCIRuntime::log_object");
830     public final long logPrintfAddress = getAddress("JVMCIRuntime::log_printf");
831     public final long vmErrorAddress = getAddress("JVMCIRuntime::vm_error");
832     public final long loadAndClearExceptionAddress = getAddress("JVMCIRuntime::load_and_clear_exception");
833     public final long writeBarrierPreAddress = getAddress("JVMCIRuntime::write_barrier_pre");
834     public final long writeBarrierPostAddress = getAddress("JVMCIRuntime::write_barrier_post");
835     public final long validateObject = getAddress("JVMCIRuntime::validate_object");
836 
837     public final long testDeoptimizeCallInt = getAddress("JVMCIRuntime::test_deoptimize_call_int");
838 
839     public final long registerFinalizerAddress = getAddress("SharedRuntime::register_finalizer");
840     public final long exceptionHandlerForReturnAddressAddress = getAddress("SharedRuntime::exception_handler_for_return_address");
841     public final long osrMigrationEndAddress = getAddress("SharedRuntime::OSR_migration_end");
842     public final long enableStackReservedZoneAddress = JDK <= 8 ? 0 : getAddress("SharedRuntime::enable_stack_reserved_zone");
843 
844     public final long javaTimeMillisAddress = getAddress("os::javaTimeMillis");
845     public final long javaTimeNanosAddress = getAddress("os::javaTimeNanos");
846     public final long arithmeticSinAddress = getFieldValue("CompilerToVM::Data::dsin", Long.class, "address");
847     public final long arithmeticCosAddress = getFieldValue("CompilerToVM::Data::dcos", Long.class, "address");
848     public final long arithmeticTanAddress = getFieldValue("CompilerToVM::Data::dtan", Long.class, "address");
849     public final long arithmeticExpAddress = getFieldValue("CompilerToVM::Data::dexp", Long.class, "address");
850     public final long arithmeticLogAddress = getFieldValue("CompilerToVM::Data::dlog", Long.class, "address");
851     public final long arithmeticLog10Address = getFieldValue("CompilerToVM::Data::dlog10", Long.class, "address");
852     public final long arithmeticPowAddress = getFieldValue("CompilerToVM::Data::dpow", Long.class, "address");
853 
854     public final long fremAddress = getAddress("SharedRuntime::frem");
855     public final long dremAddress = getAddress("SharedRuntime::drem");
856 
857     public final int jvmciCountersSize = getFlag("JVMCICounterSize", Integer.class);
858 
859     public final long deoptimizationFetchUnrollInfo = getAddress("Deoptimization::fetch_unroll_info");
860     public final long deoptimizationUncommonTrap = getAddress("Deoptimization::uncommon_trap");
861     public final long deoptimizationUnpackFrames = getAddress("Deoptimization::unpack_frames");
862 
863     public final int deoptimizationUnpackDeopt = getConstant("Deoptimization::Unpack_deopt", Integer.class);
864     public final int deoptimizationUnpackException = getConstant("Deoptimization::Unpack_exception", Integer.class);
865     public final int deoptimizationUnpackUncommonTrap = getConstant("Deoptimization::Unpack_uncommon_trap", Integer.class);
866     public final int deoptimizationUnpackReexecute = getConstant("Deoptimization::Unpack_reexecute", Integer.class);
867 
868     public final int deoptimizationUnrollBlockSizeOfDeoptimizedFrameOffset = getFieldOffset("Deoptimization::UnrollBlock::_size_of_deoptimized_frame", Integer.class, "int");
869     public final int deoptimizationUnrollBlockCallerAdjustmentOffset = getFieldOffset("Deoptimization::UnrollBlock::_caller_adjustment", Integer.class, "int");
870     public final int deoptimizationUnrollBlockNumberOfFramesOffset = getFieldOffset("Deoptimization::UnrollBlock::_number_of_frames", Integer.class, "int");
871     public final int deoptimizationUnrollBlockTotalFrameSizesOffset = getFieldOffset("Deoptimization::UnrollBlock::_total_frame_sizes", Integer.class, "int");
872     public final int deoptimizationUnrollBlockUnpackKindOffset = getFieldOffset("Deoptimization::UnrollBlock::_unpack_kind", Integer.class, "int");
873     public final int deoptimizationUnrollBlockFrameSizesOffset = getFieldOffset("Deoptimization::UnrollBlock::_frame_sizes", Integer.class, "intptr_t*");
874     public final int deoptimizationUnrollBlockFramePcsOffset = getFieldOffset("Deoptimization::UnrollBlock::_frame_pcs", Integer.class, "address*");
875     public final int deoptimizationUnrollBlockInitialInfoOffset = getFieldOffset("Deoptimization::UnrollBlock::_initial_info", Integer.class, "intptr_t");
876 
877     // JDK-8231756, GR-16685
878     public final boolean deoptimizationSupportLargeAccessByteArrayVirtualization = //
879                     getConstant("Deoptimization::_support_large_access_byte_array_virtualization", Boolean.class, false, JVMCI || JDK >= 15);
880 
881     private static final boolean JDK_8245443 = ((JDK == 11 && JDK_UPDATE >= 8) || JDK >= 15);
882 
883     // Checkstyle: stop
884     public final int VERIFIED_ENTRY = getConstant("CodeInstaller::VERIFIED_ENTRY", Integer.class);
885     public final int UNVERIFIED_ENTRY = getConstant("CodeInstaller::UNVERIFIED_ENTRY", Integer.class);
886     public final int OSR_ENTRY = getConstant("CodeInstaller::OSR_ENTRY", Integer.class);
887     public final int EXCEPTION_HANDLER_ENTRY = getConstant("CodeInstaller::EXCEPTION_HANDLER_ENTRY", Integer.class);
888     public final int DEOPT_HANDLER_ENTRY = getConstant("CodeInstaller::DEOPT_HANDLER_ENTRY", Integer.class);
889     public final int FRAME_COMPLETE = getConstant("CodeInstaller::FRAME_COMPLETE", Integer.class, -1, (JVMCI ? jvmciGE(JVMCI_20_1_b01) : JDK_8245443));
890     public final int INVOKEINTERFACE = getConstant("CodeInstaller::INVOKEINTERFACE", Integer.class);
891     public final int INVOKEVIRTUAL = getConstant("CodeInstaller::INVOKEVIRTUAL", Integer.class);
892     public final int INVOKESTATIC = getConstant("CodeInstaller::INVOKESTATIC", Integer.class);
893     public final int INVOKESPECIAL = getConstant("CodeInstaller::INVOKESPECIAL", Integer.class);
894     public final int INLINE_INVOKE = getConstant("CodeInstaller::INLINE_INVOKE", Integer.class);
895     public final int POLL_NEAR = getConstant("CodeInstaller::POLL_NEAR", Integer.class);
896     public final int POLL_RETURN_NEAR = getConstant("CodeInstaller::POLL_RETURN_NEAR", Integer.class);
897     public final int POLL_FAR = getConstant("CodeInstaller::POLL_FAR", Integer.class);
898     public final int POLL_RETURN_FAR = getConstant("CodeInstaller::POLL_RETURN_FAR", Integer.class);
899     public final int CARD_TABLE_SHIFT = getConstant("CodeInstaller::CARD_TABLE_SHIFT", Integer.class);
900     public final int CARD_TABLE_ADDRESS = getConstant("CodeInstaller::CARD_TABLE_ADDRESS", Integer.class);
901     public final int INVOKE_INVALID = getConstant("CodeInstaller::INVOKE_INVALID", Integer.class);
902 
903     public final boolean CPU_HAS_INTEL_JCC_ERRATUM = getFieldValue("VM_Version::_has_intel_jcc_erratum", Boolean.class, "bool",
904                     true, "amd64".equals(osArch) && (JVMCI ? jvmciGE(JVMCI_20_1_b01) : JDK >= 15));
905 
906     /**
907      * The following constants are given default values here since they are missing in the native
908      * JVMCI-8 code but are still required for {@link HotSpotMarkId} to work in a JDK8 environment.
909      */
910     public final int NARROW_KLASS_BASE_ADDRESS = getConstant("CodeInstaller::NARROW_KLASS_BASE_ADDRESS", Integer.class, 19, JDK > 9);
911     public final int NARROW_OOP_BASE_ADDRESS = getConstant("CodeInstaller::NARROW_OOP_BASE_ADDRESS", Integer.class, 20, JDK > 9);
912     public final int CRC_TABLE_ADDRESS = getConstant("CodeInstaller::CRC_TABLE_ADDRESS", Integer.class, 21, JDK > 9);
913     public final int LOG_OF_HEAP_REGION_GRAIN_BYTES = getConstant("CodeInstaller::LOG_OF_HEAP_REGION_GRAIN_BYTES", Integer.class, 22, JDK > 9);
914 
915     // Checkstyle: resume
916 
check()917     protected boolean check() {
918         for (Field f : getClass().getDeclaredFields()) {
919             int modifiers = f.getModifiers();
920             if (Modifier.isPublic(modifiers) && !Modifier.isStatic(modifiers)) {
921                 assert Modifier.isFinal(modifiers) : "field should be final: " + f;
922             }
923         }
924 
925         assert codeEntryAlignment > 0 : codeEntryAlignment;
926         assert checkNullAllocationStubs();
927         return true;
928     }
929 }
930