-
Notifications
You must be signed in to change notification settings - Fork 391
/
ConstantDataSnippet.cpp
1463 lines (1254 loc) · 57.5 KB
/
ConstantDataSnippet.cpp
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
794
795
796
797
798
799
800
801
802
803
804
805
806
807
808
809
810
811
812
813
814
815
816
817
818
819
820
821
822
823
824
825
826
827
828
829
830
831
832
833
834
835
836
837
838
839
840
841
842
843
844
845
846
847
848
849
850
851
852
853
854
855
856
857
858
859
860
861
862
863
864
865
866
867
868
869
870
871
872
873
874
875
876
877
878
879
880
881
882
883
884
885
886
887
888
889
890
891
892
893
894
895
896
897
898
899
900
901
902
903
904
905
906
907
908
909
910
911
912
913
914
915
916
917
918
919
920
921
922
923
924
925
926
927
928
929
930
931
932
933
934
935
936
937
938
939
940
941
942
943
944
945
946
947
948
949
950
951
952
953
954
955
956
957
958
959
960
961
962
963
964
965
966
967
968
969
970
971
972
973
974
975
976
977
978
979
980
981
982
983
984
985
986
987
988
989
990
991
992
993
994
995
996
997
998
999
1000
/*******************************************************************************
* Copyright (c) 2000, 2018 IBM Corp. and others
*
* This program and the accompanying materials are made available under
* the terms of the Eclipse Public License 2.0 which accompanies this
* distribution and is available at http://eclipse.org/legal/epl-2.0
* or the Apache License, Version 2.0 which accompanies this distribution
* and is available at https://www.apache.org/licenses/LICENSE-2.0.
*
* This Source Code may also be made available under the following Secondary
* Licenses when the conditions for such availability set forth in the
* Eclipse Public License, v. 2.0 are satisfied: GNU General Public License,
* version 2 with the GNU Classpath Exception [1] and GNU General Public
* License, version 2 with the OpenJDK Assembly Exception [2].
*
* [1] https://www.gnu.org/software/classpath/license.html
* [2] http://openjdk.java.net/legal/assembly-exception.html
*
* SPDX-License-Identifier: EPL-2.0 OR Apache-2.0 OR GPL-2.0 WITH Classpath-exception-2.0 OR LicenseRef-GPL-2.0 WITH Assembly-exception
*******************************************************************************/
#include "z/codegen/ConstantDataSnippet.hpp"
#include <stddef.h> // for NULL
#include <stdint.h> // for uint8_t, uint32_t, etc
#include <string.h> // for memcpy, strlen
#include <algorithm> // for std::find
#include "codegen/CodeGenerator.hpp" // for CodeGenerator
#include "codegen/FrontEnd.hpp" // for TR_FrontEnd
#include "codegen/InstOpCode.hpp" // for InstOpCode
#include "codegen/Instruction.hpp" // for Instruction
#include "codegen/Relocation.hpp"
#include "codegen/Snippet.hpp"
#include "codegen/UnresolvedDataSnippet.hpp"
#include "compile/Compilation.hpp" // for Compilation
#include "compile/Method.hpp" // for TR_Method
#include "compile/ResolvedMethod.hpp" // for TR_ResolvedMethod
#include "control/Options.hpp"
#include "control/Options_inlines.hpp"
#include "env/CompilerEnv.hpp"
#ifdef J9_PROJECT_SPECIFIC
#include "env/CHTable.hpp" // for TR_PatchJNICallSite
#endif
#include "env/IO.hpp"
#include "env/ObjectModel.hpp" // for ObjectModel
#include "env/TRMemory.hpp"
#include "env/jittypes.h" // for intptrj_t, uintptrj_t
#include "il/DataTypes.hpp"
#include "il/ILOpCodes.hpp" // for ILOpCodes::aconst
#include "il/Node.hpp" // for Node
#include "il/Node_inlines.hpp"
#include "il/Symbol.hpp" // for Symbol
#include "il/SymbolReference.hpp" // for SymbolReference
#include "il/TreeTop.hpp" // for TreeTop
#include "il/TreeTop_inlines.hpp" // for TreeTop::getNode
#include "il/symbol/LabelSymbol.hpp" // for LabelSymbol
#include "il/symbol/ResolvedMethodSymbol.hpp" // for ResolvedMethodSymbol
#include "il/symbol/StaticSymbol.hpp" // for StaticSymbol
#include "infra/Assert.hpp" // for TR_ASSERT
#include "infra/Link.hpp" // for TR_Pair
#include "infra/List.hpp" // for List, ListIterator
#include "ras/Debug.hpp" // for TR_Debug
#include "runtime/Runtime.hpp"
#if defined(TR_HOST_S390)
#include <time.h> // for NULL
#endif
TR::S390ConstantDataSnippet::S390ConstantDataSnippet(TR::CodeGenerator * cg, TR::Node * n, void * c, uint16_t size) :
TR::Snippet(cg, n, TR::LabelSymbol::create(cg->trHeapMemory(),cg), false)
{
if (c)
memcpy(_value, c, size);
_unresolvedDataSnippet = NULL;
_length = size;
_symbolReference = NULL;
_reloType = 0;
}
void
TR::S390ConstantDataSnippet::addMetaDataForCodeAddress(uint8_t *cursor)
{
TR::Compilation *comp = cg()->comp();
uint32_t reloType = getReloType();
switch (reloType)
{
case 0:
break;
case TR_ClassAddress:
case TR_ClassObject:
case TR_MethodObject:
{
AOTcgDiag3(comp, "add relocation (%d) cursor=%x symbolReference=%x\n", reloType, cursor, getSymbolReference());
TR::SymbolReference *reloSymRef= (reloType==TR_ClassAddress)?getNode()->getSymbolReference():getSymbolReference();
cg()->addExternalRelocation(new (cg()->trHeapMemory()) TR::ExternalRelocation(cursor, (uint8_t *) reloSymRef,
getNode() ? (uint8_t *)(intptr_t)getNode()->getInlinedSiteIndex() : (uint8_t *)-1,
(TR_ExternalRelocationTargetKind) reloType, cg()),
__FILE__, __LINE__, getNode());
}
break;
case TR_JNIStaticTargetAddress:
case TR_JNISpecialTargetAddress:
case TR_JNIVirtualTargetAddress:
{
AOTcgDiag3(comp, "add relocation (%d) cursor=%x symbolReference=%x\n", reloType, cursor, getSymbolReference());
cg()->addExternalRelocation(new (cg()->trHeapMemory()) TR::ExternalRelocation(cursor, (uint8_t *)getNode()->getSymbolReference(),
getNode() ? (uint8_t *)(intptr_t)getNode()->getInlinedSiteIndex() : (uint8_t *)-1,
(TR_ExternalRelocationTargetKind) reloType, cg()),
__FILE__, __LINE__, getNode());
}
break;
case TR_DataAddress:
AOTcgDiag3(comp, "add relocation (%d) cursor=%x symbolReference=%x\n", reloType, cursor, getSymbolReference());
cg()->addExternalRelocation(new (cg()->trHeapMemory()) TR::ExternalRelocation(cursor, (uint8_t *) getNode()->getSymbolReference(),
getNode() ? (uint8_t *)(intptr_t)getNode()->getInlinedSiteIndex() : (uint8_t *)-1,
(TR_ExternalRelocationTargetKind) reloType, cg()),
__FILE__,__LINE__, getNode());
break;
case TR_ArrayCopyHelper:
AOTcgDiag3(comp, "add relocation (%d) cursor=%x symbolReference=%x\n", reloType, cursor, getSymbolReference());
cg()->addExternalRelocation(new (cg()->trHeapMemory()) TR::ExternalRelocation(cursor, (uint8_t *) getSymbolReference(),
(TR_ExternalRelocationTargetKind) reloType, cg()),
__FILE__, __LINE__, getNode());
break;
case TR_HelperAddress:
AOTcgDiag1(comp, "add TR_AbsoluteHelperAddress cursor=%x\n", cursor);
if (TR::Compiler->target.is64Bit())
{
cg()->addExternalRelocation(new (cg()->trHeapMemory()) TR::ExternalRelocation(cursor, (uint8_t *) *((uint64_t*) cursor), TR_AbsoluteHelperAddress, cg()),
__FILE__, __LINE__, getNode());
}
else
{
cg()->addExternalRelocation(new (cg()->trHeapMemory()) TR::ExternalRelocation(cursor, (uint8_t *)(intptr_t) *((uint32_t*) cursor), TR_AbsoluteHelperAddress, cg()),
__FILE__, __LINE__, getNode());
}
break;
case TR_AbsoluteMethodAddress:
case TR_BodyInfoAddress:
AOTcgDiag2(comp, "add relocation (%d) cursor=%x\n", reloType, cursor);
if (TR::Compiler->target.is64Bit())
{
cg()->addExternalRelocation(new (cg()->trHeapMemory()) TR::ExternalRelocation(cursor, (uint8_t *) *((uint64_t*) cursor),
(TR_ExternalRelocationTargetKind) reloType, cg()),
__FILE__, __LINE__, getNode());
}
else
{
cg()->addExternalRelocation(new (cg()->trHeapMemory()) TR::ExternalRelocation(cursor, (uint8_t *)(intptr_t) *((uint32_t*) cursor),
(TR_ExternalRelocationTargetKind) reloType, cg()),
__FILE__, __LINE__, getNode());
}
break;
case TR_GlobalValue:
AOTcgDiag2(comp, "add TR_GlobalValue (countForRecompile) cursor=%x\n", reloType, cursor);
cg()->addExternalRelocation(new (cg()->trHeapMemory()) TR::ExternalRelocation(cursor, (uint8_t *) TR_CountForRecompile,
TR_GlobalValue, cg()),
__FILE__, __LINE__, getNode());
break;
case TR_RamMethod:
case TR_MethodPointer:
case TR_ClassPointer:
{
AOTcgDiag2(comp, "add relocation (%d) cursor=%x\n", reloType, cursor);
TR::Relocation *relo;
//for optimizations where we are trying to relocate either profiled j9class or getfrom signature we can't use node to get the target address
//so we need to pass it to relocation in targetaddress2 for now
//two instances where use this relotype in such way are: profile checkcast and arraystore check object check optimiztaions
uint8_t * targetAdress2 = NULL;
if (getNode()->getOpCodeValue() != TR::aconst)
{
if (TR::Compiler->target.is64Bit())
targetAdress2 = (uint8_t *) *((uint64_t*) cursor);
else
targetAdress2 = (uint8_t *) *((uintptrj_t*) cursor);
}
relo = new (cg()->trHeapMemory()) TR::ExternalRelocation(cursor, (uint8_t *) getNode(), targetAdress2, (TR_ExternalRelocationTargetKind) reloType, cg());
cg()->addExternalRelocation(relo, __FILE__, __LINE__, getNode());
}
break;
case TR_DebugCounter:
{
TR::DebugCounterBase *counter = cg()->comp()->getCounterFromStaticAddress(getNode()->getSymbolReference());
if (counter == NULL)
{
cg()->comp()->failCompilation<TR::CompilationException>("Could not generate relocation for debug counter in OMR::X86::MemoryReference::addMetaDataForCodeAddress\n");
}
AOTcgDiag3(comp, "add relocation (%d) cursor=%x counter=%x\n", reloType, cursor, counter);
TR::DebugCounter::generateRelocation(cg()->comp(),
cursor,
getNode(),
counter);
}
break;
default:
TR_ASSERT( 0,"relocation type not handled yet");
}
if (comp->getOption(TR_EnableHCR))
{
if (std::find(comp->getSnippetsToBePatchedOnClassRedefinition()->begin(), comp->getSnippetsToBePatchedOnClassRedefinition()->end(), this) != comp->getSnippetsToBePatchedOnClassRedefinition()->end())
{
cg()->jitAddPicToPatchOnClassRedefinition(((void *) (*(uintptrj_t *) cursor)), (void *) (uintptrj_t *) cursor);
}
if (std::find(comp->getSnippetsToBePatchedOnClassUnload()->begin(), comp->getSnippetsToBePatchedOnClassUnload()->end(), this) != comp->getSnippetsToBePatchedOnClassUnload()->end())
cg()->jitAddPicToPatchOnClassUnload(((void *) (*(uintptrj_t *) cursor)), (void *) (uintptrj_t *) cursor);
if (std::find(comp->getMethodSnippetsToBePatchedOnClassUnload()->begin(), comp->getMethodSnippetsToBePatchedOnClassUnload()->end(), this) != comp->getMethodSnippetsToBePatchedOnClassUnload()->end())
{
void *classPointer = (void *) cg()->fe()->createResolvedMethod(cg()->trMemory(), (TR_OpaqueMethodBlock *) (*(uintptrj_t *) cursor), comp->getCurrentMethod())->classOfMethod();
cg()->jitAddPicToPatchOnClassUnload(classPointer, (void *) (uintptrj_t *) cursor);
}
}
else
{
if (std::find(comp->getSnippetsToBePatchedOnClassUnload()->begin(), comp->getSnippetsToBePatchedOnClassUnload()->end(), this) != comp->getSnippetsToBePatchedOnClassUnload()->end())
{
cg()->jitAddPicToPatchOnClassUnload(((void *) (*(uintptrj_t *) cursor)), (void *) (uintptrj_t *) cursor);
}
if (std::find(comp->getMethodSnippetsToBePatchedOnClassUnload()->begin(), comp->getMethodSnippetsToBePatchedOnClassUnload()->end(), this) != comp->getMethodSnippetsToBePatchedOnClassUnload()->end())
{
void *classPointer = (void *) cg()->fe()->createResolvedMethod(cg()->trMemory(), (TR_OpaqueMethodBlock *) (*(uintptrj_t *) cursor), comp->getCurrentMethod())->classOfMethod();
cg()->jitAddPicToPatchOnClassUnload(classPointer, (void *) (uintptrj_t *) cursor);
}
}
#ifdef J9_PROJECT_SPECIFIC
// Check if this is a jni method address, and if so, register assumption
for (auto it = comp->getSnippetsToBePatchedOnRegisterNative()->begin(); it != comp->getSnippetsToBePatchedOnRegisterNative()->end(); ++it)
{
TR::Snippet *s = (*it)->getKey();
if (this == s)
{
TR_OpaqueMethodBlock *method = (*it)->getValue()->getPersistentIdentifier();
TR_PatchJNICallSite::make(cg()->fe(), cg()->trPersistentMemory(), (uintptrj_t) method, cursor, comp->getMetadataAssumptionList());
}
}
// For Unresolved Data Calls, we need to insert the address of this literal
// pool reference, so that the PICbuilder code can patch the resolved address
if (getUnresolvedDataSnippet() != NULL)
{
uint8_t * udsPatchLocation = getUnresolvedDataSnippet()->getLiteralPoolPatchAddress();
TR_ASSERT(udsPatchLocation != NULL,"Literal Pool Reference has NULL Unresolved Data Snippet patch site!");
*(intptrj_t *)udsPatchLocation = (intptrj_t)cursor;
getUnresolvedDataSnippet()->setLiteralPoolSlot(cursor);
if (getUnresolvedDataSnippet()->getDataSymbol()->isClassObject() && cg()->wantToPatchClassPointer(NULL, cursor)) // unresolved
{
cg()->jitAddPicToPatchOnClassRedefinition((void*) *(uintptrj_t *)cursor , (void *) cursor, true);
}
}
#endif
}
uint8_t *
TR::S390ConstantDataSnippet::emitSnippetBody()
{
uint8_t * cursor = cg()->getBinaryBufferCursor();
TR::Compilation *comp = cg()->comp();
AOTcgDiag1(comp, "TR::S390ConstantDataSnippet::emitSnippetBody cursor=%x\n", cursor);
getSnippetLabel()->setCodeLocation(cursor);
memcpy(cursor, &_value, _length);
uint32_t reloType = getReloType();
AOTcgDiag6(comp, "this=%p cursor=%p node=%p value=%p length=%x reloType=%x\n", this, cursor, getNode(), *((int*)cursor), _length, reloType);
switch (reloType)
{
case TR_ClassAddress:
case TR_ClassObject:
{
uintptrj_t romClassPtr = TR::Compiler->cls.persistentClassPointerFromClassPointer(comp, (TR_OpaqueClassBlock*)(*((uintptrj_t*)cursor)));
memcpy(cursor, &romClassPtr, _length);
}
break;
case TR_AbsoluteMethodAddress:
TR_ASSERT(getNode()->getSymbol() && getNode()->getSymbol()->getStaticSymbol() &&
getNode()->getSymbol()->getStaticSymbol()->isStartPC(), "Expecting start PC");
*(uintptr_t *) cursor = (uintptr_t) getNode()->getSymbol()->getStaticSymbol()->getStaticAddress();
break;
}
addMetaDataForCodeAddress(cursor);
cursor += _length;
return cursor;
}
uint32_t
TR::S390ConstantDataSnippet::getLength(int32_t estimatedSnippetStart)
{
return _length;
}
TR::S390ConstantInstructionSnippet::S390ConstantInstructionSnippet(TR::CodeGenerator * cg, TR::Node * n, TR::Instruction *instr)
: TR::S390ConstantDataSnippet(cg, n, NULL, 0)
{
_instruction = instr;
setLength(instr->getOpCode().getInstructionLength());
}
uint8_t *
TR::S390ConstantInstructionSnippet::emitSnippetBody()
{
TR::Instruction * instr = this->getInstruction();
uint8_t * cursor = cg()->getBinaryBufferCursor();
getSnippetLabel()->setCodeLocation(cursor);
instr->generateBinaryEncoding();
for(int i = 0; i < _length; ++i)
_value[i] = cursor[i];
cursor += 8;
return cursor;
}
int64_t
TR::S390ConstantInstructionSnippet::getDataAs8Bytes()
{
emitSnippetBody();
return *((uint64_t *)_value);
}
TR::S390EyeCatcherDataSnippet::S390EyeCatcherDataSnippet(TR::CodeGenerator *cg, TR::Node *n)
: TR::S390ConstantDataSnippet(cg, n, NULL, 0)
{
// Cold Eyecatcher is used for padding of endPC so that Return Address for exception snippets will never equal the endPC.
/*
char eyeCatcher[4]={ 'J','I','T','M'};
int32_t eyeCatcherSize = 4;
_value = (uint8_t *)malloc(eyeCatcherSize);
void *target = (void*)_value;
memcpy(target , eyeCatcher, eyeCatcherSize);
*/
setLength(4);
}
uint8_t *
TR::S390EyeCatcherDataSnippet::emitSnippetBody()
{
uint8_t * cursor = cg()->getBinaryBufferCursor();
getSnippetLabel()->setCodeLocation(cursor);
const int32_t eyeCatcherSize = 4;
char eyeCatcher[eyeCatcherSize]={ 'J','I','T','M'};
memcpy(cursor, eyeCatcher, eyeCatcherSize);
cursor += eyeCatcherSize;
return cursor;
}
TR::S390WritableDataSnippet::S390WritableDataSnippet(TR::CodeGenerator * cg, TR::Node * n, void * c, uint16_t size)
: TR::S390ConstantDataSnippet(cg, n, c, size)
{
}
//////////////////////////////////////////////////////////////////////////////////////
// TR::S390TargetAddressSnippet member functions
//////////////////////////////////////////////////////////////////////////////////////
TR::S390TargetAddressSnippet::S390TargetAddressSnippet(TR::CodeGenerator * cg, TR::Node * n, TR::LabelSymbol * targetLabel)
: TR::Snippet(cg, n, TR::LabelSymbol::create(cg->trHeapMemory(),cg), false), _targetsnippet(NULL), _targetaddress(0), _targetsym(NULL),
_targetlabel(targetLabel)
{
}
TR::S390TargetAddressSnippet::S390TargetAddressSnippet(TR::CodeGenerator * cg, TR::Node * n, TR::Snippet * s)
: TR::Snippet(cg, n, TR::LabelSymbol::create(cg->trHeapMemory(),cg), false), _targetsnippet(s), _targetaddress(0), _targetsym(NULL), _targetlabel(NULL)
{
}
TR::S390TargetAddressSnippet::S390TargetAddressSnippet(TR::CodeGenerator * cg, TR::Node * n, uintptrj_t addr)
: TR::Snippet(cg, n, TR::LabelSymbol::create(cg->trHeapMemory(),cg), false), _targetsnippet(NULL), _targetaddress(addr), _targetsym(NULL),
_targetlabel(NULL)
{
}
TR::S390TargetAddressSnippet::S390TargetAddressSnippet(TR::CodeGenerator * cg, TR::Node * n, TR::Symbol * sym)
: TR::Snippet(cg, n, TR::LabelSymbol::create(cg->trHeapMemory(),cg), false), _targetsnippet(NULL), _targetaddress(0), _targetsym(sym), _targetlabel(NULL)
{
}
uint8_t *
TR::S390TargetAddressSnippet::emitSnippetBody()
{
uint8_t * cursor = cg()->getBinaryBufferCursor();
AOTcgDiag1(cg()->comp(), "TR::S390TargetAddressSnippet::emitSnippetBody cursor=%x\n", cursor);
getSnippetLabel()->setCodeLocation(cursor);
TR::Compilation* comp = cg()->comp();
if (_targetsnippet != NULL)
{
*(intptrj_t *) cursor = 0;
AOTcgDiag1(comp, "add TR_AbsoluteMethodAddress cursor=%x\n", cursor);
cg()->addRelocation(new (cg()->trHeapMemory()) TR::LabelAbsoluteRelocation(cursor, _targetsnippet->getSnippetLabel()));
cg()->addProjectSpecializedRelocation(cursor, NULL, NULL, TR_AbsoluteMethodAddress,
__FILE__, __LINE__, getNode());
}
else if (_targetlabel != NULL)
{
*(intptrj_t *) cursor = 0;
if (_targetlabel->getCodeLocation() != NULL)
{
*(intptrj_t *) cursor = (intptrj_t) (_targetlabel->getCodeLocation());
}
else
{
AOTcgDiag1(comp, "add TR_AbsoluteMethodAddress cursor=%x\n", cursor);
cg()->addRelocation(new (cg()->trHeapMemory()) TR::LabelAbsoluteRelocation(cursor, _targetlabel));
cg()->addProjectSpecializedRelocation(cursor, NULL, NULL, TR_AbsoluteMethodAddress,
__FILE__, __LINE__, getNode());
}
}
else
{
if (_targetsym != NULL)
{
TR_ResolvedMethod * resolvedMethod = _targetsym->getResolvedMethodSymbol()->getResolvedMethod();
if (resolvedMethod != NULL && resolvedMethod->isSameMethod(comp->getCurrentMethod()))
{
uint8_t * jitTojitStart = cg()->getCodeStart();
// Calculate jit-to-jit entry point
jitTojitStart += ((*(intptrj_t *) (jitTojitStart - 4)) >> 16) & 0x0000ffff;
*(intptrj_t *) cursor = (intptrj_t) jitTojitStart;
}
}
else
{
*(intptrj_t *) cursor = _targetaddress;
}
}
cursor += sizeof(uintptrj_t);
return cursor;
}
uint32_t
TR::S390TargetAddressSnippet::getLength(int32_t estimatedSnippetStart)
{
return sizeof(uintptrj_t);
}
//////////////////////////////////////////////////////////////////////////////////////
TR::S390LookupSwitchSnippet::S390LookupSwitchSnippet(TR::CodeGenerator * cg, TR::Node * switchNode)
: TR::S390TargetAddressSnippet(cg, switchNode, TR::LabelSymbol::create(cg->trHeapMemory(),cg))
{
// *this swipeable for debugger
}
uint8_t *
TR::S390LookupSwitchSnippet::emitSnippetBody()
{
int32_t numChildren = getNode()->getCaseIndexUpperBound() - 1;
uint8_t * cursor = cg()->getBinaryBufferCursor();
TR::Compilation* comp = cg()->comp();
AOTcgDiag1(comp, "TR::S390LookupSwitchSnippet::emitSnippetBody cursor=%x\n", cursor);
getSnippetLabel()->setCodeLocation(cursor);
for (int32_t i = 1; i <= numChildren; i++)
{
// Each case stmt is described by a node on the child
TR::Node * caseKeyNode = getNode()->getChild(i);
CASECONST_TYPE caseKeyValue = caseKeyNode->getCaseConstant();
intptrj_t caseKeyTarget = (intptrj_t) caseKeyNode->getBranchDestination()->getNode()->getLabel()->getCodeLocation();
*(int32_t *) cursor = caseKeyValue;
cursor += 4;
*(intptrj_t *) cursor = caseKeyTarget;
cursor += TR::Compiler->om.sizeofReferenceAddress();
}
*(int32_t *) cursor = 0;
cursor += 4;
return cursor;
}
uint32_t
TR::S390LookupSwitchSnippet::getLength(int32_t estimatedSnippetStart)
{
TR::Compilation* comp = cg()->comp();
return (getNode()->getCaseIndexUpperBound() - 1) * (sizeof(int32_t) + TR::Compiler->om.sizeofReferenceAddress());
}
///////////////////////////////////////////////////////////////////////////////
// TR::S390InterfaceCallDataSnippet member functions
///////////////////////////////////////////////////////////////////////////////
TR::S390InterfaceCallDataSnippet::S390InterfaceCallDataSnippet(TR::CodeGenerator * cg,
TR::Node * node,
uint8_t n,
bool useCLFIandBRCL)
: TR::S390ConstantDataSnippet(cg,node,TR::LabelSymbol::create(cg->trHeapMemory(),cg),0),
_numInterfaceCallCacheSlots(n),
_codeRA(NULL),
thunkAddress(NULL),
_useCLFIandBRCL(useCLFIandBRCL)
{
}
TR::S390InterfaceCallDataSnippet::S390InterfaceCallDataSnippet(TR::CodeGenerator * cg,
TR::Node * node,
uint8_t n,
uint8_t *thunkPtr,
bool useCLFIandBRCL)
: TR::S390ConstantDataSnippet(cg,node,TR::LabelSymbol::create(cg->trHeapMemory(),cg),0),
_numInterfaceCallCacheSlots(n),
_codeRA(NULL),
thunkAddress(thunkPtr),
_useCLFIandBRCL(useCLFIandBRCL)
{
}
uint8_t *
TR::S390InterfaceCallDataSnippet::emitSnippetBody()
{
// 64-Bit Layout.
// 0x00000100211cfe58 DC 0x100211cf58a ; Call Site RA
// 0x00000100211cfe60 DC 0x8020b380 ; Address Of Constant Pool
// 0x00000100211cfe68 DC 0x00000040 ; CP Index
// 0x00000100211cfe70 DC 0x00000000 ; Interface class
// 0x00000100211cfe78 DC 0x00000000 ; Method Index
//
// 0x00000100211cfe80 DC 0x00000000 ; Flags (resolved)
// 0x00000100211cfe88 DC 0x100211cfe90 ; lastCachedSlotField
//
// 0x00000100211cfe90 DC 0x100211cfea0 ; firstSlotField
// 0x00000100211cfe98 DC 0x100211cfed0 ; lastSlotField
//
// If we use L/C/BR sequence:
// 0x00000100211cfea0 DC 0x00000000 ; Cached Class1
// 0x00000100211cfea8 DC 0x00000000 ; Cached Method1
//
// 0x00000100211cfeb0 DC 0x00000000 ; Cached Class2
// 0x00000100211cfeb8 DC 0x00000000 ; Cached Method2
//
// 0x00000100211cfec0 DC 0x00000000 ; Cached Class3
// 0x00000100211cfec8 DC 0x00000000 ; Cached Method3
//
// 0x00000100211cfed0 DC 0x00000000 ; Cached Class4
// 0x00000100211cfed8 DC 0x00000000 ; Cached Method4
//
// and so on...
// If we use CLFI / BRCL
// 0x00000100211cfea0 DC 0x00000000 ; Patch slot of the first CLFI (Class 1)
// 0x00000100211cfea0 DC 0x00000000 ; Patch slot of the second CLFI (Class 2)
// 0x00000100211cfea0 DC 0x00000000 ; Patch slot of the third CLFI (Class 3)
// and so on ...
// 31-Bit Layout.
// 0x00000000211cfe50 DC 0x0000610ff8 ; Address Of Dispatch Glue
// 0x00000000211cfe54 DC 0x00211cf58a ; Call Site RA
// 0x00000000211cfe58 DC 0x2020b380 ; Address Of Constant Pool
// 0x00000000211cfe5c DC 0x00000040 ; CP Index
// 0x00000000211cfe60 DC 0x00000000 ; Interface class
// 0x00000000211cfe64 DC 0x00000000 ; Method Index
//
// 0x00000000211cfe68 DC 0x00000000 ; Cached Class1
// 0x00000000211cfe6c DC 0x00000000 ; Cached Method1
//
// 0x00000000211cfe70 DC 0x00000000 ; Flags (resolved)
TR::Compilation *comp = cg()->comp();
int32_t i = 0;
uint8_t * cursor = cg()->getBinaryBufferCursor();
AOTcgDiag1(comp, "TR::S390InterfaceCallDataSnippet::emitSnippetBody cursor=%x\n", cursor);
// Class Pointer must be double word aligned.
int32_t padBytes = ((intptrj_t)cursor + 5 * sizeof(intptrj_t) + 7) / 8 * 8 - ((intptrj_t)cursor + 5 * sizeof(intptrj_t));
cursor += padBytes;
getSnippetLabel()->setCodeLocation(cursor);
TR::Node * callNode = getNode();
intptrj_t snippetStart = (intptrj_t)cursor;
// code cache RA
TR_ASSERT(_codeRA != NULL, "Interface Call Data Constant's code return address not initialized.\n");
*(uintptrj_t *) cursor = (uintptrj_t)_codeRA;
AOTcgDiag1(comp, "add TR_AbsoluteMethodAddress cursor=%x\n", cursor);
cg()->addProjectSpecializedRelocation(cursor, NULL, NULL, TR_AbsoluteMethodAddress,
__FILE__, __LINE__, callNode);
cursor += TR::Compiler->om.sizeofReferenceAddress();
// constant pool
*(uintptrj_t *) cursor = (uintptrj_t) callNode->getSymbolReference()->getOwningMethod(comp)->constantPool();
AOTcgDiag1(comp, "add TR_Thunks cursor=%x\n", cursor);
cg()->addProjectSpecializedRelocation(cursor, *(uint8_t **)cursor, callNode ? (uint8_t *)(intptr_t)callNode->getInlinedSiteIndex() : (uint8_t *)-1, TR_Thunks,
__FILE__, __LINE__, callNode);
cursor += TR::Compiler->om.sizeofReferenceAddress();
// save CPIndex as sign extended 8 byte value on 64bit as it's assumed in J9 helpers
// cp index
*(intptrj_t *) cursor = (intptrj_t) callNode->getSymbolReference()->getCPIndex();
cursor += TR::Compiler->om.sizeofReferenceAddress();
//interface class
*(uintptrj_t *) cursor = 0;
cursor += TR::Compiler->om.sizeofReferenceAddress();
// method index
*(intptrj_t *) cursor = 0;
cursor += TR::Compiler->om.sizeofReferenceAddress();
if (getNumInterfaceCallCacheSlots() == 0)
{
// Flags
*(intptrj_t *) (cursor) = 0;
cursor += TR::Compiler->om.sizeofReferenceAddress();
return cursor;
}
uint8_t * cursorlastCachedSlot = 0;
if (!comp->getOption(TR_enableInterfaceCallCachingSingleDynamicSlot))
{
// Flags
*(intptrj_t *) (cursor) = 0;
cursor += TR::Compiler->om.sizeofReferenceAddress();
// lastCachedSlot
cursorlastCachedSlot = cursor;
*(intptrj_t *) (cursor) = snippetStart + getFirstSlotOffset() - (2 * TR::Compiler->om.sizeofReferenceAddress());
AOTcgDiag1(comp, "add TR_AbsoluteMethodAddress cursor=%x\n", cursor);
cg()->addProjectSpecializedRelocation(cursor, NULL, NULL, TR_AbsoluteMethodAddress,
__FILE__, __LINE__, callNode);
cursor += TR::Compiler->om.sizeofReferenceAddress();
// firstSlot
*(intptrj_t *) (cursor) = snippetStart + getFirstSlotOffset();
AOTcgDiag1(comp, "add TR_AbsoluteMethodAddress cursor=%x\n", cursor);
cg()->addProjectSpecializedRelocation(cursor, NULL, NULL, TR_AbsoluteMethodAddress,
__FILE__, __LINE__, callNode);
cursor += TR::Compiler->om.sizeofReferenceAddress();
// lastSlot
*(intptrj_t *) (cursor) = snippetStart + getLastSlotOffset();
AOTcgDiag1(comp, "add TR_AbsoluteMethodAddress cursor=%x\n", cursor);
cg()->addProjectSpecializedRelocation(cursor, NULL, NULL, TR_AbsoluteMethodAddress,
__FILE__, __LINE__, callNode);
cursor += TR::Compiler->om.sizeofReferenceAddress();
}
// Cursor must be double word aligned by this point.
TR_ASSERT( (intptrj_t)cursor % 8 == 0, "Interface Call Data Snippet Class Ptr is not double word aligned.");
bool updateField = false;
int32_t numInterfaceCallCacheSlots = getNumInterfaceCallCacheSlots();
TR::list<TR_OpaqueClassBlock*> * profiledClassesList = cg()->getPICsListForInterfaceSnippet(this);
if (profiledClassesList)
{
for (auto valuesIt = profiledClassesList->begin(); valuesIt != profiledClassesList->end(); ++valuesIt)
{
TR::SymbolReference *methodSymRef = callNode->getSymbolReference();
TR_ResolvedMethod * profiledMethod = methodSymRef->getOwningMethod(comp)->getResolvedInterfaceMethod(comp,
(TR_OpaqueClassBlock *)(*valuesIt), methodSymRef->getCPIndex());
numInterfaceCallCacheSlots--;
updateField = true;
if (TR::Compiler->target.is64Bit() && TR::Compiler->om.generateCompressedObjectHeaders())
*(uintptrj_t *) cursor = (uintptrj_t) (*valuesIt) << 32;
else
*(uintptrj_t *) cursor = (uintptrj_t) (*valuesIt);
if (comp->getOption(TR_EnableHCR))
{
cg()->jitAddPicToPatchOnClassRedefinition(*valuesIt, (void *) cursor);
}
if (cg()->fe()->isUnloadAssumptionRequired((TR_OpaqueClassBlock *)(*valuesIt), comp->getCurrentMethod()))
{
cg()->jitAddPicToPatchOnClassUnload(*valuesIt, (void *) cursor);
}
cursor += TR::Compiler->om.sizeofReferenceAddress();
// Method Pointer
*(uintptrj_t *) (cursor) = (uintptrj_t)profiledMethod->startAddressForJittedMethod();
cursor += TR::Compiler->om.sizeofReferenceAddress();
}
}
// Skip the top cache slots that are filled with IProfiler data by setting the cursorlastCachedSlot to point to the fist dynamic cache slot
if (updateField)
{
*(intptrj_t *) (cursorlastCachedSlot) = snippetStart + getFirstSlotOffset() + ((getNumInterfaceCallCacheSlots()-numInterfaceCallCacheSlots-1)*2 * TR::Compiler->om.sizeofReferenceAddress());
}
for (i = 0; i < numInterfaceCallCacheSlots; i++)
{
if (isUseCLFIandBRCL())
{
// Get Address of CLFI's immediate field (2 bytes into CLFI instruction).
// jitAddPicToPatchOnClassUnload is called by PicBuilder code when the cache is populated.
*(intptrj_t*) cursor = (intptrj_t)(getFirstCLFI()->getBinaryEncoding() ) + (intptrj_t)(i * 12 + 2);
cursor += TR::Compiler->om.sizeofReferenceAddress();
}
else
{
// Class Pointer - jitAddPicToPatchOnClassUnload is called by PicBuilder code when the cache is populated.
*(intptrj_t *) cursor = 0;
cursor += TR::Compiler->om.sizeofReferenceAddress();
// Method Pointer
*(intptrj_t *) (cursor) = 0;
cursor += TR::Compiler->om.sizeofReferenceAddress();
}
}
if (comp->getOption(TR_enableInterfaceCallCachingSingleDynamicSlot))
{
// Flags
*(intptrj_t *) (cursor) = 0;
cursor += TR::Compiler->om.sizeofReferenceAddress();
}
return cursor;
}
uint32_t
TR::S390InterfaceCallDataSnippet::getCallReturnAddressOffset()
{
return 0;
}
uint32_t
TR::S390InterfaceCallDataSnippet::getSingleDynamicSlotOffset()
{
return getCallReturnAddressOffset() + 5 * TR::Compiler->om.sizeofReferenceAddress();
}
uint32_t
TR::S390InterfaceCallDataSnippet::getLastCachedSlotFieldOffset()
{
return getCallReturnAddressOffset() + 6 * TR::Compiler->om.sizeofReferenceAddress();
}
uint32_t
TR::S390InterfaceCallDataSnippet::getFirstSlotFieldOffset()
{
return getLastCachedSlotFieldOffset() + TR::Compiler->om.sizeofReferenceAddress();
}
uint32_t
TR::S390InterfaceCallDataSnippet::getLastSlotFieldOffset()
{
return getFirstSlotFieldOffset() + TR::Compiler->om.sizeofReferenceAddress();
}
uint32_t
TR::S390InterfaceCallDataSnippet::getFirstSlotOffset()
{
return getLastSlotFieldOffset() + TR::Compiler->om.sizeofReferenceAddress();
}
uint32_t
TR::S390InterfaceCallDataSnippet::getLastSlotOffset()
{
return (getFirstSlotOffset() +
(getNumInterfaceCallCacheSlots() - 1) *
((isUseCLFIandBRCL()?1:2) * TR::Compiler->om.sizeofReferenceAddress()));
}
uint32_t
TR::S390InterfaceCallDataSnippet::getLength(int32_t)
{
TR::Compilation *comp = cg()->comp();
// the 1st item is for padding...
if (getNumInterfaceCallCacheSlots()== 0)
return 2 * TR::Compiler->om.sizeofReferenceAddress() + 8 * TR::Compiler->om.sizeofReferenceAddress();
if (comp->getOption(TR_enableInterfaceCallCachingSingleDynamicSlot))
return 2 * TR::Compiler->om.sizeofReferenceAddress() + getSingleDynamicSlotOffset() + 4 * TR::Compiler->om.sizeofReferenceAddress();
if (getNumInterfaceCallCacheSlots() > 0)
return 2 * TR::Compiler->om.sizeofReferenceAddress() + getLastSlotOffset() + TR::Compiler->om.sizeofReferenceAddress();
TR_ASSERT(0,"Interface Call Data Snippet has 0 size.");
return 0;
}
///////////////////////////////////////////////////////////////////////////////
// TR::S390InterfaceCallDataSnippet member functions
///////////////////////////////////////////////////////////////////////////////
uint32_t
TR::S390JNICallDataSnippet::getJNICallOutFrameFlagsOffset()
{
return TR::Compiler->om.sizeofReferenceAddress();
}
uint32_t
TR::S390JNICallDataSnippet::getReturnFromJNICallOffset()
{
return 2 * TR::Compiler->om.sizeofReferenceAddress();
}
uint32_t
TR::S390JNICallDataSnippet::getSavedPCOffset()
{
return 3 * TR::Compiler->om.sizeofReferenceAddress();
}
uint32_t
TR::S390JNICallDataSnippet::getTagBitsOffset()
{
return 4 * TR::Compiler->om.sizeofReferenceAddress();
}
uint32_t
TR::S390JNICallDataSnippet::getPCOffset()
{
return 5 * TR::Compiler->om.sizeofReferenceAddress();
}
uint32_t
TR::S390JNICallDataSnippet::getLiteralsOffset()
{
return 6 * TR::Compiler->om.sizeofReferenceAddress();
}
uint32_t
TR::S390JNICallDataSnippet::getJitStackFrameFlagsOffset()
{
return 7 * TR::Compiler->om.sizeofReferenceAddress();
}
uint32_t
TR::S390JNICallDataSnippet::getConstReleaseVMAccessMaskOffset()
{
return 8 * TR::Compiler->om.sizeofReferenceAddress();
}
uint32_t
TR::S390JNICallDataSnippet::getConstReleaseVMAccessOutOfLineMaskOffset()
{
return 9 * TR::Compiler->om.sizeofReferenceAddress();
}
uint32_t
TR::S390JNICallDataSnippet::getTargetAddressOffset()
{
return 10 * TR::Compiler->om.sizeofReferenceAddress();
}
uint32_t
TR::S390JNICallDataSnippet::getLength(int32_t estimatedSnippetStart)
{
return 12 * TR::Compiler->om.sizeofReferenceAddress(); /*one ptr more for possible padding */
}
TR::S390JNICallDataSnippet::S390JNICallDataSnippet(TR::CodeGenerator * cg,
TR::Node * node)
: TR::S390ConstantDataSnippet(cg, node, TR::LabelSymbol::create(cg->trHeapMemory(),cg),0),
_baseRegister(0),
_ramMethod(0),
_JNICallOutFrameFlags(0),
_returnFromJNICallLabel(0),
_savedPC(0),
_tagBits(0),
_pc(0),
_literals(0),
_jitStackFrameFlags(0),
_constReleaseVMAccessMask(0),
_constReleaseVMAccessOutOfLineMask(0),
_targetAddress(0)
{
return;
}
uint8_t *
TR::S390JNICallDataSnippet::emitSnippetBody()
{
uint8_t * cursor = cg()->getBinaryBufferCursor();
#ifdef J9_PROJECT_SPECIFIC
/* TR::S390JNICallDataSnippet Layout: all fields are pointer sized
ramMethod
JNICallOutFrameFlags
returnFromJNICall
savedPC
tagBits
pc
literals
jitStackFrameFlags
constReleaseVMAccessMask
constReleaseVMAccessOutOfLineMask
targetAddress
*/
TR::Compilation *comp = cg()->comp();
AOTcgDiag1(comp, "TR::S390JNICallDataSnippet::emitSnippetBody cursor=%x\n", cursor);
// Ensure pointer sized alignment
int32_t alignSize = TR::Compiler->om.sizeofReferenceAddress();
int32_t padBytes = ((intptrj_t)cursor + alignSize -1) / alignSize * alignSize - (intptrj_t)cursor;
cursor += padBytes;
getSnippetLabel()->setCodeLocation(cursor);
TR::Node * callNode = getNode();
intptrj_t snippetStart = (intptrj_t)cursor;
// JNI Callout Frame data
// _ramMethod
*(intptrj_t *) cursor = (intptrj_t) _ramMethod;
uint32_t reloType;
if (getNode()->getSymbol()->castToResolvedMethodSymbol()->isSpecial())
reloType = TR_SpecialRamMethodConst;
else if (getNode()->getSymbol()->castToResolvedMethodSymbol()->isStatic())
reloType = TR_StaticRamMethodConst;
else if (getNode()->getSymbol()->castToResolvedMethodSymbol()->isVirtual())
reloType = TR_VirtualRamMethodConst;
else
{
reloType = TR_NoRelocation;
TR_ASSERT(0,"JNI relocation not supported.");
}
AOTcgDiag2(comp, "add relocation (%d) cursor=%x\n", reloType, cursor);
cg()->addExternalRelocation(new (cg()->trHeapMemory()) TR::ExternalRelocation(cursor, (uint8_t *) callNode->getSymbolReference(),
callNode ? (uint8_t *)(intptr_t)callNode->getInlinedSiteIndex() : (uint8_t *)-1,
(TR_ExternalRelocationTargetKind) reloType, cg()),
__FILE__, __LINE__, callNode);
cursor += TR::Compiler->om.sizeofReferenceAddress();
// _JNICallOutFrameFlags
*(intptrj_t *) cursor = (intptrj_t) _JNICallOutFrameFlags;
cursor += TR::Compiler->om.sizeofReferenceAddress();
// _returnFromJNICall
*(intptrj_t *) cursor = (intptrj_t) (_returnFromJNICallLabel->getCodeLocation());
AOTcgDiag1(comp, "add TR_AbsoluteMethodAddress cursor=%x\n", cursor);
cg()->addRelocation(new (cg()->trHeapMemory()) TR::LabelAbsoluteRelocation(cursor, _returnFromJNICallLabel));
cg()->addExternalRelocation(new (cg()->trHeapMemory()) TR::ExternalRelocation(cursor, NULL, TR_AbsoluteMethodAddress, cg()),
__FILE__, __LINE__, getNode());
cursor += TR::Compiler->om.sizeofReferenceAddress();
// _savedPC
*(intptrj_t *) cursor = (intptrj_t) _savedPC;
cursor += TR::Compiler->om.sizeofReferenceAddress();
// _tagBits
*(intptrj_t *) cursor = (intptrj_t) _tagBits;
cursor += TR::Compiler->om.sizeofReferenceAddress();
//VMThread data
// _pc
*(intptrj_t *) cursor = (intptrj_t) _pc;
cursor += TR::Compiler->om.sizeofReferenceAddress();
// _literals
*(intptrj_t *) cursor = (intptrj_t) _literals;
cursor += TR::Compiler->om.sizeofReferenceAddress();
// _jitStackFrameFlags
*(intptrj_t *) cursor = (intptrj_t) _jitStackFrameFlags;
cursor += TR::Compiler->om.sizeofReferenceAddress();
// _constReleaseVMAccessMask
*(intptrj_t *) cursor = (intptrj_t) _constReleaseVMAccessMask;
cursor += TR::Compiler->om.sizeofReferenceAddress();
// _constReleaseVMAccessOutOfLineMask
*(intptrj_t *) cursor = (intptrj_t) _constReleaseVMAccessOutOfLineMask;
cursor += TR::Compiler->om.sizeofReferenceAddress();
// _targetAddress/function pointer of native method
*(intptrj_t *) cursor = (intptrj_t) _targetAddress;
TR_OpaqueMethodBlock *method = getNode()->getSymbol()->castToResolvedMethodSymbol()->getResolvedMethod()->getPersistentIdentifier();
TR_PatchJNICallSite::make(cg()->fe(), cg()->trPersistentMemory(), (uintptrj_t) method, cursor, comp->getMetadataAssumptionList());
if (getNode()->getSymbol()->castToResolvedMethodSymbol()->isSpecial())
reloType = TR_JNISpecialTargetAddress;