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
|
## Check llvm-readobj and llvm-readelf print relocations as expected.
## Show that ELF64 is dumped correctly.
# RUN: yaml2obj %s --docnum=1 -o %t64
# RUN: llvm-readobj -r %t64 \
# RUN: | FileCheck %s --check-prefix=LLVM-64 --strict-whitespace --match-full-lines
# RUN: llvm-readobj --relocs %t64 \
# RUN: | FileCheck %s --check-prefix=LLVM-64 --strict-whitespace --match-full-lines
# RUN: llvm-readobj --relocations %t64 \
# RUN: | FileCheck %s --check-prefix=LLVM-64 --strict-whitespace --match-full-lines
# LLVM-64:Relocations [
# LLVM-64-NEXT: Section (2) .rel.text {
# LLVM-64-NEXT: 0x0 R_X86_64_NONE rel_0
# LLVM-64-NEXT: 0x1 R_X86_64_PC32 rel_neg
# LLVM-64-NEXT: 0x5 R_X86_64_PLT32 rel_pos
# LLVM-64-NEXT: 0x9 R_X86_64_64 rel_64
# LLVM-64-NEXT: }
# LLVM-64-NEXT: Section (3) .rela.text {
# LLVM-64-NEXT: 0x0 R_X86_64_NONE rela_0 0x0
# LLVM-64-NEXT: 0x1 R_X86_64_PC32 rela_neg 0xFFFFFFFFFFFFFFFF
# LLVM-64-NEXT: 0x5 R_X86_64_PLT32 rela_pos 0x2
# LLVM-64-NEXT: 0xFFFFFFFFFFFFFFFF R_X86_64_64 rela_minneg 0x8000000000000000
# LLVM-64-NEXT: 0x9 R_X86_64_32S rela_maxpos 0x7FFFFFFFFFFFFFFF
# LLVM-64-NEXT: }
# LLVM-64-NEXT:]
# RUN: llvm-readelf -r %t64 \
# RUN: | FileCheck %s --check-prefix=GNU-64 --strict-whitespace --match-full-lines
# RUN: llvm-readelf --relocs %t64 \
# RUN: | FileCheck %s --check-prefix=GNU-64 --strict-whitespace --match-full-lines
# RUN: llvm-readelf --relocations %t64 \
# RUN: | FileCheck %s --check-prefix=GNU-64 --strict-whitespace --match-full-lines
# GNU-64:Relocation section '.rel.text' at offset 0x51 contains 4 entries:
# GNU-64-NEXT: Offset Info Type Symbol's Value Symbol's Name
# GNU-64-NEXT:0000000000000000 0000000100000000 R_X86_64_NONE 0000000000000000 rel_0
# GNU-64-NEXT:0000000000000001 0000000200000002 R_X86_64_PC32 0000000000000001 rel_neg
# GNU-64-NEXT:0000000000000005 0000000300000004 R_X86_64_PLT32 0000000000000002 rel_pos
# GNU-64-NEXT:0000000000000009 0000000400000001 R_X86_64_64 ffffffffffffffff rel_64
# GNU-64-EMPTY:
# GNU-64-NEXT:Relocation section '.rela.text' at offset 0x91 contains 5 entries:
# GNU-64-NEXT: Offset Info Type Symbol's Value Symbol's Name + Addend
# GNU-64-NEXT:0000000000000000 0000000500000000 R_X86_64_NONE 0000000000000000 rela_0 + 0
# GNU-64-NEXT:0000000000000001 0000000600000002 R_X86_64_PC32 0000000000000001 rela_neg - 1
# GNU-64-NEXT:0000000000000005 0000000700000004 R_X86_64_PLT32 0000000000000002 rela_pos + 2
# GNU-64-NEXT:ffffffffffffffff 0000000800000001 R_X86_64_64 0000000000000003 rela_minneg - 8000000000000000
# GNU-64-NEXT:0000000000000009 000000090000000b R_X86_64_32S ffffffffffffffff rela_maxpos + 7fffffffffffffff
## Show that --expand-relocs expands the relocation dump for LLVM style and not GNU.
# RUN: llvm-readobj -r --expand-relocs %t64 \
# RUN: | FileCheck %s --check-prefix=LLVM-EXPAND-64 --match-full-lines --strict-whitespace
# RUN: llvm-readelf -r --expand-relocs %t64 \
# RUN: | FileCheck %s --check-prefix=GNU-64 --match-full-lines --strict-whitespace
# LLVM-EXPAND-64:Relocations [
# LLVM-EXPAND-64-NEXT: Section (2) .rel.text {
# LLVM-EXPAND-64-NEXT: Relocation {
# LLVM-EXPAND-64-NEXT: Offset: 0x0
# LLVM-EXPAND-64-NEXT: Type: R_X86_64_NONE (0)
# LLVM-EXPAND-64-NEXT: Symbol: rel_0 (1)
# LLVM-EXPAND-64-NEXT: }
# LLVM-EXPAND-64-NEXT: Relocation {
# LLVM-EXPAND-64-NEXT: Offset: 0x1
# LLVM-EXPAND-64-NEXT: Type: R_X86_64_PC32 (2)
# LLVM-EXPAND-64-NEXT: Symbol: rel_neg (2)
# LLVM-EXPAND-64-NEXT: }
# LLVM-EXPAND-64-NEXT: Relocation {
# LLVM-EXPAND-64-NEXT: Offset: 0x5
# LLVM-EXPAND-64-NEXT: Type: R_X86_64_PLT32 (4)
# LLVM-EXPAND-64-NEXT: Symbol: rel_pos (3)
# LLVM-EXPAND-64-NEXT: }
# LLVM-EXPAND-64-NEXT: Relocation {
# LLVM-EXPAND-64-NEXT: Offset: 0x9
# LLVM-EXPAND-64-NEXT: Type: R_X86_64_64 (1)
# LLVM-EXPAND-64-NEXT: Symbol: rel_64 (4)
# LLVM-EXPAND-64-NEXT: }
# LLVM-EXPAND-64-NEXT: }
# LLVM-EXPAND-64-NEXT: Section (3) .rela.text {
# LLVM-EXPAND-64-NEXT: Relocation {
# LLVM-EXPAND-64-NEXT: Offset: 0x0
# LLVM-EXPAND-64-NEXT: Type: R_X86_64_NONE (0)
# LLVM-EXPAND-64-NEXT: Symbol: rela_0 (5)
# LLVM-EXPAND-64-NEXT: Addend: 0x0
# LLVM-EXPAND-64-NEXT: }
# LLVM-EXPAND-64-NEXT: Relocation {
# LLVM-EXPAND-64-NEXT: Offset: 0x1
# LLVM-EXPAND-64-NEXT: Type: R_X86_64_PC32 (2)
# LLVM-EXPAND-64-NEXT: Symbol: rela_neg (6)
# LLVM-EXPAND-64-NEXT: Addend: 0xFFFFFFFFFFFFFFFF
# LLVM-EXPAND-64-NEXT: }
# LLVM-EXPAND-64-NEXT: Relocation {
# LLVM-EXPAND-64-NEXT: Offset: 0x5
# LLVM-EXPAND-64-NEXT: Type: R_X86_64_PLT32 (4)
# LLVM-EXPAND-64-NEXT: Symbol: rela_pos (7)
# LLVM-EXPAND-64-NEXT: Addend: 0x2
# LLVM-EXPAND-64-NEXT: }
# LLVM-EXPAND-64-NEXT: Relocation {
# LLVM-EXPAND-64-NEXT: Offset: 0xFFFFFFFFFFFFFFFF
# LLVM-EXPAND-64-NEXT: Type: R_X86_64_64 (1)
# LLVM-EXPAND-64-NEXT: Symbol: rela_minneg (8)
# LLVM-EXPAND-64-NEXT: Addend: 0x8000000000000000
# LLVM-EXPAND-64-NEXT: }
# LLVM-EXPAND-64-NEXT: Relocation {
# LLVM-EXPAND-64-NEXT: Offset: 0x9
# LLVM-EXPAND-64-NEXT: Type: R_X86_64_32S (11)
# LLVM-EXPAND-64-NEXT: Symbol: rela_maxpos (9)
# LLVM-EXPAND-64-NEXT: Addend: 0x7FFFFFFFFFFFFFFF
# LLVM-EXPAND-64-NEXT: }
# LLVM-EXPAND-64-NEXT: }
# LLVM-EXPAND-64-NEXT:]
## Show that JSON relocations are always expanded.
# RUN: llvm-readobj -r %t64 --elf-output-style=JSON --pretty-print \
# RUN: | FileCheck %s --check-prefix=JSON-EXPAND-64
# RUN: llvm-readobj -r --expand-relocs %t64 --elf-output-style=JSON --pretty-print \
# RUN: | FileCheck %s --check-prefix=JSON-EXPAND-64
# JSON-EXPAND-64: "Relocations": [
# JSON-EXPAND-64-NEXT: {
# JSON-EXPAND-64-NEXT: "SectionIndex": 2
# JSON-EXPAND-64-NEXT: "Relocs": [
# JSON-EXPAND-64-NEXT: {
# JSON-EXPAND-64-NEXT: "Relocation": {
# JSON-EXPAND-64-NEXT: "Offset": 0,
# JSON-EXPAND-64-NEXT: "Type": {
# JSON-EXPAND-64-NEXT: "Name": "R_X86_64_NONE",
# JSON-EXPAND-64-NEXT: "Value": 0
# JSON-EXPAND-64-NEXT: },
# JSON-EXPAND-64-NEXT: "Symbol": {
# JSON-EXPAND-64-NEXT: "Name": "rel_0",
# JSON-EXPAND-64-NEXT: "Value": 1
# JSON-EXPAND-64-NEXT: }
# JSON-EXPAND-64-NEXT: }
# JSON-EXPAND-64-NEXT: },
# JSON-EXPAND-64-NEXT: {
# JSON-EXPAND-64-NEXT: "Relocation": {
# JSON-EXPAND-64-NEXT: "Offset": 1,
# JSON-EXPAND-64-NEXT: "Type": {
# JSON-EXPAND-64-NEXT: "Name": "R_X86_64_PC32",
# JSON-EXPAND-64-NEXT: "Value": 2
# JSON-EXPAND-64-NEXT: },
# JSON-EXPAND-64-NEXT: "Symbol": {
# JSON-EXPAND-64-NEXT: "Name": "rel_neg",
# JSON-EXPAND-64-NEXT: "Value": 2
# JSON-EXPAND-64-NEXT: }
# JSON-EXPAND-64-NEXT: }
# JSON-EXPAND-64-NEXT: },
# JSON-EXPAND-64-NEXT: {
# JSON-EXPAND-64-NEXT: "Relocation": {
# JSON-EXPAND-64-NEXT: "Offset": 5,
# JSON-EXPAND-64-NEXT: "Type": {
# JSON-EXPAND-64-NEXT: "Name": "R_X86_64_PLT32",
# JSON-EXPAND-64-NEXT: "Value": 4
# JSON-EXPAND-64-NEXT: },
# JSON-EXPAND-64-NEXT: "Symbol": {
# JSON-EXPAND-64-NEXT: "Name": "rel_pos",
# JSON-EXPAND-64-NEXT: "Value": 3
# JSON-EXPAND-64-NEXT: }
# JSON-EXPAND-64-NEXT: }
# JSON-EXPAND-64-NEXT: },
# JSON-EXPAND-64-NEXT: {
# JSON-EXPAND-64-NEXT: "Relocation": {
# JSON-EXPAND-64-NEXT: "Offset": 9,
# JSON-EXPAND-64-NEXT: "Type": {
# JSON-EXPAND-64-NEXT: "Name": "R_X86_64_64",
# JSON-EXPAND-64-NEXT: "Value": 1
# JSON-EXPAND-64-NEXT: },
# JSON-EXPAND-64-NEXT: "Symbol": {
# JSON-EXPAND-64-NEXT: "Name": "rel_64",
# JSON-EXPAND-64-NEXT: "Value": 4
# JSON-EXPAND-64-NEXT: }
# JSON-EXPAND-64-NEXT: }
# JSON-EXPAND-64-NEXT: }
# JSON-EXPAND-64-NEXT: ]
# JSON-EXPAND-64-NEXT: },
# JSON-EXPAND-64-NEXT: {
# JSON-EXPAND-64-NEXT: "SectionIndex": 3,
# JSON-EXPAND-64-NEXT: "Relocs": [
# JSON-EXPAND-64-NEXT: {
# JSON-EXPAND-64-NEXT: "Relocation": {
# JSON-EXPAND-64-NEXT: "Offset": 0,
# JSON-EXPAND-64-NEXT: "Type": {
# JSON-EXPAND-64-NEXT: "Name": "R_X86_64_NONE",
# JSON-EXPAND-64-NEXT: "Value": 0
# JSON-EXPAND-64-NEXT: },
# JSON-EXPAND-64-NEXT: "Symbol": {
# JSON-EXPAND-64-NEXT: "Name": "rela_0",
# JSON-EXPAND-64-NEXT: "Value": 5
# JSON-EXPAND-64-NEXT: },
# JSON-EXPAND-64-NEXT: "Addend": 0
# JSON-EXPAND-64-NEXT: }
# JSON-EXPAND-64-NEXT: },
# JSON-EXPAND-64-NEXT: {
# JSON-EXPAND-64-NEXT: "Relocation": {
# JSON-EXPAND-64-NEXT: "Offset": 1,
# JSON-EXPAND-64-NEXT: "Type": {
# JSON-EXPAND-64-NEXT: "Name": "R_X86_64_PC32",
# JSON-EXPAND-64-NEXT: "Value": 2
# JSON-EXPAND-64-NEXT: },
# JSON-EXPAND-64-NEXT: "Symbol": {
# JSON-EXPAND-64-NEXT: "Name": "rela_neg",
# JSON-EXPAND-64-NEXT: "Value": 6
# JSON-EXPAND-64-NEXT: },
# JSON-EXPAND-64-NEXT: "Addend": 18446744073709551615
# JSON-EXPAND-64-NEXT: }
# JSON-EXPAND-64-NEXT: },
# JSON-EXPAND-64-NEXT: {
# JSON-EXPAND-64-NEXT: "Relocation": {
# JSON-EXPAND-64-NEXT: "Offset": 5,
# JSON-EXPAND-64-NEXT: "Type": {
# JSON-EXPAND-64-NEXT: "Name": "R_X86_64_PLT32",
# JSON-EXPAND-64-NEXT: "Value": 4
# JSON-EXPAND-64-NEXT: },
# JSON-EXPAND-64-NEXT: "Symbol": {
# JSON-EXPAND-64-NEXT: "Name": "rela_pos",
# JSON-EXPAND-64-NEXT: "Value": 7
# JSON-EXPAND-64-NEXT: },
# JSON-EXPAND-64-NEXT: "Addend": 2
# JSON-EXPAND-64-NEXT: }
# JSON-EXPAND-64-NEXT: },
# JSON-EXPAND-64-NEXT: {
# JSON-EXPAND-64-NEXT: "Relocation": {
# JSON-EXPAND-64-NEXT: "Offset": 18446744073709551615,
# JSON-EXPAND-64-NEXT: "Type": {
# JSON-EXPAND-64-NEXT: "Name": "R_X86_64_64",
# JSON-EXPAND-64-NEXT: "Value": 1
# JSON-EXPAND-64-NEXT: },
# JSON-EXPAND-64-NEXT: "Symbol": {
# JSON-EXPAND-64-NEXT: "Name": "rela_minneg",
# JSON-EXPAND-64-NEXT: "Value": 8
# JSON-EXPAND-64-NEXT: },
# JSON-EXPAND-64-NEXT: "Addend": 9223372036854775808
# JSON-EXPAND-64-NEXT: }
# JSON-EXPAND-64-NEXT: },
# JSON-EXPAND-64-NEXT: {
# JSON-EXPAND-64-NEXT: "Relocation": {
# JSON-EXPAND-64-NEXT: "Offset": 9,
# JSON-EXPAND-64-NEXT: "Type": {
# JSON-EXPAND-64-NEXT: "Name": "R_X86_64_32S",
# JSON-EXPAND-64-NEXT: "Value": 11
# JSON-EXPAND-64-NEXT: },
# JSON-EXPAND-64-NEXT: "Symbol": {
# JSON-EXPAND-64-NEXT: "Name": "rela_maxpos",
# JSON-EXPAND-64-NEXT: "Value": 9
# JSON-EXPAND-64-NEXT: },
# JSON-EXPAND-64-NEXT: "Addend": 9223372036854775807
# JSON-EXPAND-64-NEXT: }
# JSON-EXPAND-64-NEXT: }
# JSON-EXPAND-64-NEXT: ]
# JSON-EXPAND-64-NEXT: }
# JSON-EXPAND-64-NEXT: ]
--- !ELF
FileHeader:
Class: ELFCLASS64
Data: ELFDATA2LSB
Type: ET_REL
Machine: EM_X86_64
Sections:
- Name: .text
Type: SHT_PROGBITS
Content: '00FFFFFFFF020000001234567890ABCDEF'
- Name: .rel.text
Type: SHT_REL
Info: .text
Link: [[LINK=.symtab]]
ShName: [[SHNAME=<none>]]
EntSize: [[ENTSIZEREL=<none>]]
Relocations:
- Symbol: rel_0
Type: R_X86_64_NONE
- Offset: 0x1
Symbol: rel_neg
Type: R_X86_64_PC32
- Offset: 0x5
Symbol: rel_pos
Type: R_X86_64_PLT32
- Offset: 0x9
Symbol: rel_64
Type: R_X86_64_64
- Name: .rela.text
Type: SHT_RELA
Info: .text
Link: [[LINK=.symtab]]
ShName: [[SHNAME=<none>]]
EntSize: [[ENTSIZERELA=<none>]]
Relocations:
- Symbol: rela_0
Type: R_X86_64_NONE
Addend: 0
- Offset: 0x1
Symbol: rela_neg
Type: R_X86_64_PC32
Addend: -1
- Offset: 0x5
Symbol: rela_pos
Type: R_X86_64_PLT32
Addend: 2
- Offset: 0xFFFFFFFFFFFFFFFF
Symbol: rela_minneg
Type: R_X86_64_64
Addend: -9223372036854775808 ## Min 64-bit signed.
- Offset: 0x9
Symbol: rela_maxpos
Type: R_X86_64_32S
Addend: 9223372036854775807 ## Max 64-bit signed.
Symbols:
- Name: rel_0
Section: .text
Value: 0
- Name: rel_neg
Section: .text
Value: 1
- Name: rel_pos
Section: .text
Value: 2
- Name: rel_64
Section: .text
Value: 0xFFFFFFFFFFFFFFFF
- Name: rela_0
Section: .text
Value: 0
- Name: rela_neg
Section: .text
Value: 1
- Name: rela_pos
Section: .text
Value: 2
- Name: rela_minneg
Section: .text
Value: 3
- Name: rela_maxpos
Section: .text
Value: 0xFFFFFFFFFFFFFFFF
## Check we report a warning when we are unable to dump relocations for a section.
## Check we continue dumping other relocation sections if any.
## Case A: check the case when relocations can't be read from an SHT_REL section.
## because of broken sh_entsize field.
# RUN: yaml2obj %s --docnum=1 -DENTSIZEREL=1 -o %t.broken.rel
# RUN: llvm-readobj --relocations %t.broken.rel 2>&1 \
# RUN: | FileCheck %s -DFILE=%t.broken.rel --check-prefix=BROKEN-REL-LLVM
# RUN: llvm-readelf --relocations %t.broken.rel 2>&1 \
# RUN: | FileCheck %s -DFILE=%t.broken.rel --check-prefix=BROKEN-REL-GNU
# BROKEN-REL-LLVM: Relocations [
# BROKEN-REL-LLVM-NEXT: Section (2) .rel.text {
# BROKEN-REL-LLVM-NEXT: warning: '[[FILE]]': unable to read relocations from SHT_REL section with index 2: section [index 2] has invalid sh_entsize: expected 16, but got 1
# BROKEN-REL-LLVM-NEXT: }
# BROKEN-REL-LLVM-NEXT: Section (3) .rela.text {
# BROKEN-REL-LLVM-NEXT: 0x0 R_X86_64_NONE rela_0 0x0
# BROKEN-REL-LLVM-NEXT: 0x1 R_X86_64_PC32 rela_neg 0xFFFFFFFFFFFFFFFF
# BROKEN-REL-LLVM-NEXT: 0x5 R_X86_64_PLT32 rela_pos 0x2
# BROKEN-REL-LLVM-NEXT: 0xFFFFFFFFFFFFFFFF R_X86_64_64 rela_minneg 0x8000000000000000
# BROKEN-REL-LLVM-NEXT: 0x9 R_X86_64_32S rela_maxpos 0x7FFFFFFFFFFFFFFF
# BROKEN-REL-LLVM-NEXT: }
# BROKEN-REL-LLVM-NEXT: ]
# BROKEN-REL-GNU: Relocation section '.rel.text' at offset 0x51 contains 64 entries:
# BROKEN-REL-GNU-NEXT: Offset Info Type Symbol's Value Symbol's Name
# BROKEN-REL-GNU-NEXT: warning: '[[FILE]]': unable to read relocations from SHT_REL section with index 2: section [index 2] has invalid sh_entsize: expected 16, but got 1
# BROKEN-REL-GNU: Relocation section '.rela.text' at offset 0x91 contains 5 entries:
# BROKEN-REL-GNU-NEXT: Offset Info Type Symbol's Value Symbol's Name
# BROKEN-REL-GNU-NEXT: 0000000000000000 0000000500000000 R_X86_64_NONE 0000000000000000 rela_0 + 0
# BROKEN-REL-GNU-NEXT: 0000000000000001 0000000600000002 R_X86_64_PC32 0000000000000001 rela_neg - 1
# BROKEN-REL-GNU-NEXT: 0000000000000005 0000000700000004 R_X86_64_PLT32 0000000000000002 rela_pos + 2
# BROKEN-REL-GNU-NEXT: ffffffffffffffff 0000000800000001 R_X86_64_64 0000000000000003 rela_minneg - 8000000000000000
# BROKEN-REL-GNU-NEXT: 0000000000000009 000000090000000b R_X86_64_32S ffffffffffffffff rela_maxpos + 7fffffffffffffff
## Case B: check the case when relocations can't be read from an SHT_RELA section.
## because of broken sh_entsize field.
# RUN: yaml2obj %s --docnum=1 -DENTSIZERELA=1 -o %t.broken.rela
# RUN: llvm-readobj --relocations %t.broken.rela 2>&1 \
# RUN: | FileCheck %s -DFILE=%t.broken.rela --check-prefix=BROKEN-RELA-LLVM
# RUN: llvm-readelf --relocations %t.broken.rela 2>&1 \
# RUN: | FileCheck %s -DFILE=%t.broken.rela --check-prefix=BROKEN-RELA-GNU
# BROKEN-RELA-LLVM: Relocations [
# BROKEN-RELA-LLVM-NEXT: Section (2) .rel.text {
# BROKEN-RELA-LLVM-NEXT: 0x0 R_X86_64_NONE rel_0{{$}}
# BROKEN-RELA-LLVM-NEXT: 0x1 R_X86_64_PC32 rel_neg{{$}}
# BROKEN-RELA-LLVM-NEXT: 0x5 R_X86_64_PLT32 rel_pos{{$}}
# BROKEN-RELA-LLVM-NEXT: 0x9 R_X86_64_64 rel_64{{$}}
# BROKEN-RELA-LLVM-NEXT: }
# BROKEN-RELA-LLVM-NEXT: Section (3) .rela.text {
# BROKEN-RELA-LLVM-NEXT: warning: '[[FILE]]': unable to read relocations from SHT_RELA section with index 3: section [index 3] has invalid sh_entsize: expected 24, but got 1
# BROKEN-RELA-LLVM-NEXT: }
# BROKEN-RELA-LLVM-NEXT: ]
# BROKEN-RELA-GNU: Relocation section '.rel.text' at offset 0x51 contains 4 entries:
# BROKEN-RELA-GNU-NEXT: Offset Info Type Symbol's Value Symbol's Name
# BROKEN-RELA-GNU-NEXT: 0000000000000000 0000000100000000 R_X86_64_NONE 0000000000000000 rel_0
# BROKEN-RELA-GNU-NEXT: 0000000000000001 0000000200000002 R_X86_64_PC32 0000000000000001 rel_neg
# BROKEN-RELA-GNU-NEXT: 0000000000000005 0000000300000004 R_X86_64_PLT32 0000000000000002 rel_pos
# BROKEN-RELA-GNU-NEXT: 0000000000000009 0000000400000001 R_X86_64_64 ffffffffffffffff rel_64
# BROKEN-RELA-GNU-EMPTY:
# BROKEN-RELA-GNU-NEXT: Relocation section '.rela.text' at offset 0x91 contains 120 entries:
# BROKEN-RELA-GNU-NEXT: Offset Info Type Symbol's Value Symbol's Name + Addend
# BROKEN-RELA-GNU-NEXT: warning: '[[FILE]]': unable to read relocations from SHT_RELA section with index 3: section [index 3] has invalid sh_entsize: expected 24, but got 1
## Case C: check the case when relocations can't be read from SHT_REL/SHT_RELA sections
## because of broken sh_link fields.
# RUN: yaml2obj %s --docnum=1 -DLINK=0xffff -o %t.broken.link
# RUN: llvm-readobj --relocations %t.broken.link 2>&1 \
# RUN: | FileCheck %s -DFILE=%t.broken.link --check-prefix=BROKEN-LINK-LLVM
# RUN: llvm-readelf --relocations %t.broken.link 2>&1 \
# RUN: | FileCheck %s -DFILE=%t.broken.link --check-prefix=BROKEN-LINK-GNU
# BROKEN-LINK-LLVM: Relocations [
# BROKEN-LINK-LLVM-NEXT: Section (2) .rel.text {
# BROKEN-LINK-LLVM-NEXT: warning: '[[FILE]]': unable to locate a symbol table for SHT_REL section with index 2: invalid section index: 65535
# BROKEN-LINK-LLVM-NEXT: }
# BROKEN-LINK-LLVM-NEXT: Section (3) .rela.text {
# BROKEN-LINK-LLVM-NEXT: warning: '[[FILE]]': unable to locate a symbol table for SHT_RELA section with index 3: invalid section index: 65535
# BROKEN-LINK-LLVM-NEXT: }
# BROKEN-LINK-LLVM-NEXT: ]
# BROKEN-LINK-GNU: Relocation section '.rel.text' at offset 0x51 contains 4 entries:
# BROKEN-LINK-GNU-NEXT: Offset Info Type Symbol's Value Symbol's Name
# BROKEN-LINK-GNU-NEXT: warning: '[[FILE]]': unable to locate a symbol table for SHT_REL section with index 2: invalid section index: 65535
# BROKEN-LINK-GNU-EMPTY:
# BROKEN-LINK-GNU-NEXT: Relocation section '.rela.text' at offset 0x91 contains 5 entries:
# BROKEN-LINK-GNU-NEXT: Offset Info Type Symbol's Value Symbol's Name + Addend
# BROKEN-LINK-GNU-NEXT: warning: '[[FILE]]': unable to locate a symbol table for SHT_RELA section with index 3: invalid section index: 65535
## Show that ELF32 is dumped correctly.
# RUN: yaml2obj %s --docnum=2 -o %t32
# RUN: llvm-readobj -r %t32 \
# RUN: | FileCheck %s --check-prefix=LLVM-32 --strict-whitespace --match-full-lines
# RUN: llvm-readobj --relocs %t32 \
# RUN: | FileCheck %s --check-prefix=LLVM-32 --strict-whitespace --match-full-lines
# RUN: llvm-readobj --relocations %t32 \
# RUN: | FileCheck %s --check-prefix=LLVM-32 --strict-whitespace --match-full-lines
# LLVM-32:Relocations [
# LLVM-32-NEXT: Section (2) .rel.text {
# LLVM-32-NEXT: 0x0 R_386_NONE rel_0
# LLVM-32-NEXT: 0x1 R_386_PC32 rel_neg
# LLVM-32-NEXT: 0x5 R_386_PLT32 rel_pos
# LLVM-32-NEXT: }
# LLVM-32-NEXT: Section (3) .rela.text {
# LLVM-32-NEXT: 0x0 R_386_NONE rela_0 0x0
# LLVM-32-NEXT: 0x1 R_386_PC32 rela_neg 0xFFFFFFFF
# LLVM-32-NEXT: 0x5 R_386_PLT32 rela_pos 0x2
# LLVM-32-NEXT: 0xFFFFFFFF R_386_32 rela_minneg 0x80000000
# LLVM-32-NEXT: 0x9 R_386_GOT32 rela_maxpos 0x7FFFFFFF
# LLVM-32-NEXT: }
# LLVM-32-NEXT:]
# RUN: llvm-readelf -r %t32 \
# RUN: | FileCheck %s --check-prefix=GNU-32 --strict-whitespace --match-full-lines
# RUN: llvm-readelf --relocs %t32 \
# RUN: | FileCheck %s --check-prefix=GNU-32 --strict-whitespace --match-full-lines
# RUN: llvm-readelf --relocations %t32 \
# RUN: | FileCheck %s --check-prefix=GNU-32 --strict-whitespace --match-full-lines
# GNU-32:Relocation section '.rel.text' at offset 0x3d contains 3 entries:
# GNU-32-NEXT: Offset Info Type Sym. Value Symbol's Name
# GNU-32-NEXT:00000000 00000100 R_386_NONE 00000000 rel_0
# GNU-32-NEXT:00000001 00000202 R_386_PC32 00000001 rel_neg
# GNU-32-NEXT:00000005 00000304 R_386_PLT32 ffffffff rel_pos
# GNU-32-EMPTY:
# GNU-32-NEXT:Relocation section '.rela.text' at offset 0x55 contains 5 entries:
# GNU-32-NEXT: Offset Info Type Sym. Value Symbol's Name + Addend
# GNU-32-NEXT:00000000 00000400 R_386_NONE 00000000 rela_0 + 0
# GNU-32-NEXT:00000001 00000502 R_386_PC32 00000001 rela_neg - 1
# GNU-32-NEXT:00000005 00000604 R_386_PLT32 00000002 rela_pos + 2
# GNU-32-NEXT:ffffffff 00000701 R_386_32 00000003 rela_minneg - 80000000
# GNU-32-NEXT:00000009 00000803 R_386_GOT32 ffffffff rela_maxpos + 7fffffff
## Show that --expand-relocs expands the relocation dump for LLVM style and not GNU.
# RUN: llvm-readobj -r --expand-relocs %t32 \
# RUN: | FileCheck %s --check-prefix=LLVM-EXPAND-32 --strict-whitespace --match-full-lines
# RUN: llvm-readelf -r --expand-relocs %t32 \
# RUN: | FileCheck %s --check-prefix=GNU-32 --strict-whitespace --match-full-lines
# LLVM-EXPAND-32:Relocations [
# LLVM-EXPAND-32-NEXT: Section (2) .rel.text {
# LLVM-EXPAND-32-NEXT: Relocation {
# LLVM-EXPAND-32-NEXT: Offset: 0x0
# LLVM-EXPAND-32-NEXT: Type: R_386_NONE (0)
# LLVM-EXPAND-32-NEXT: Symbol: rel_0 (1)
# LLVM-EXPAND-32-NEXT: }
# LLVM-EXPAND-32-NEXT: Relocation {
# LLVM-EXPAND-32-NEXT: Offset: 0x1
# LLVM-EXPAND-32-NEXT: Type: R_386_PC32 (2)
# LLVM-EXPAND-32-NEXT: Symbol: rel_neg (2)
# LLVM-EXPAND-32-NEXT: }
# LLVM-EXPAND-32-NEXT: Relocation {
# LLVM-EXPAND-32-NEXT: Offset: 0x5
# LLVM-EXPAND-32-NEXT: Type: R_386_PLT32 (4)
# LLVM-EXPAND-32-NEXT: Symbol: rel_pos (3)
# LLVM-EXPAND-32-NEXT: }
# LLVM-EXPAND-32-NEXT: }
# LLVM-EXPAND-32-NEXT: Section (3) .rela.text {
# LLVM-EXPAND-32-NEXT: Relocation {
# LLVM-EXPAND-32-NEXT: Offset: 0x0
# LLVM-EXPAND-32-NEXT: Type: R_386_NONE (0)
# LLVM-EXPAND-32-NEXT: Symbol: rela_0 (4)
# LLVM-EXPAND-32-NEXT: Addend: 0x0
# LLVM-EXPAND-32-NEXT: }
# LLVM-EXPAND-32-NEXT: Relocation {
# LLVM-EXPAND-32-NEXT: Offset: 0x1
# LLVM-EXPAND-32-NEXT: Type: R_386_PC32 (2)
# LLVM-EXPAND-32-NEXT: Symbol: rela_neg (5)
# LLVM-EXPAND-32-NEXT: Addend: 0xFFFFFFFF
# LLVM-EXPAND-32-NEXT: }
# LLVM-EXPAND-32-NEXT: Relocation {
# LLVM-EXPAND-32-NEXT: Offset: 0x5
# LLVM-EXPAND-32-NEXT: Type: R_386_PLT32 (4)
# LLVM-EXPAND-32-NEXT: Symbol: rela_pos (6)
# LLVM-EXPAND-32-NEXT: Addend: 0x2
# LLVM-EXPAND-32-NEXT: }
# LLVM-EXPAND-32-NEXT: Relocation {
# LLVM-EXPAND-32-NEXT: Offset: 0xFFFFFFFF
# LLVM-EXPAND-32-NEXT: Type: R_386_32 (1)
# LLVM-EXPAND-32-NEXT: Symbol: rela_minneg (7)
# LLVM-EXPAND-32-NEXT: Addend: 0x80000000
# LLVM-EXPAND-32-NEXT: }
# LLVM-EXPAND-32-NEXT: Relocation {
# LLVM-EXPAND-32-NEXT: Offset: 0x9
# LLVM-EXPAND-32-NEXT: Type: R_386_GOT32 (3)
# LLVM-EXPAND-32-NEXT: Symbol: rela_maxpos (8)
# LLVM-EXPAND-32-NEXT: Addend: 0x7FFFFFFF
# LLVM-EXPAND-32-NEXT: }
# LLVM-EXPAND-32-NEXT: }
# LLVM-EXPAND-32-NEXT:]
--- !ELF
FileHeader:
Class: ELFCLASS32
Data: ELFDATA2LSB
Type: ET_REL
Machine: EM_386
Sections:
- Name: .text
Type: SHT_PROGBITS
Content: '00FFFFFFFF02000000'
- Name: .rel.text
Type: SHT_REL
Info: .text
Relocations:
- Symbol: rel_0
Type: R_386_NONE
- Offset: 0x1
Symbol: rel_neg
Type: R_386_PC32
- Offset: 0x5
Symbol: rel_pos
Type: R_386_PLT32
- Name: .rela.text
Type: SHT_RELA
Info: .text
Relocations:
- Symbol: rela_0
Type: R_386_NONE
Addend: 0
- Offset: 0x1
Symbol: rela_neg
Type: R_386_PC32
Addend: -1
- Offset: 0x5
Symbol: rela_pos
Type: R_386_PLT32
Addend: 2
- Offset: 0xFFFFFFFF
Symbol: rela_minneg
Type: R_386_32
Addend: -2147483648 ## Min 32-bit signed.
- Offset: 0x9
Symbol: rela_maxpos
Type: R_386_GOT32
Addend: 2147483647 ## Max 32-bit signed.
Symbols:
- Name: rel_0
Section: .text
Value: 0
- Name: rel_neg
Section: .text
Value: 1
- Name: rel_pos
Section: .text
Value: 0xFFFFFFFF
- Name: rela_0
Section: .text
Value: 0
- Name: rela_neg
Section: .text
Value: 1
- Name: rela_pos
Section: .text
Value: 2
- Name: rela_minneg
Section: .text
Value: 3
- Name: rela_maxpos
Section: .text
Value: 0xFFFFFFFF
## Check we report a warning when the name of a relocation section can't be read. Check we continue dumping.
# RUN: yaml2obj %s --docnum=1 -DSHNAME=0xffffffff -o %tshname
# RUN: llvm-readobj --relocs %tshname 2>&1 | FileCheck %s -DFILE=%tshname --check-prefix=LLVM-SHNAME
# RUN: llvm-readelf --relocs %tshname 2>&1 | FileCheck %s -DFILE=%tshname --check-prefix=GNU-SHNAME
# LLVM-SHNAME: Relocations [
# LLVM-SHNAME-NEXT: warning: '[[FILE]]': unable to get the name of SHT_REL section with index 2: a section [index 2] has an invalid sh_name (0xffffffff) offset which goes past the end of the section name string table
# LLVM-SHNAME-NEXT: Section (2) <?> {
# LLVM-SHNAME-NEXT: 0x0 R_X86_64_NONE rel_0{{$}}
# LLVM-SHNAME-NEXT: 0x1 R_X86_64_PC32 rel_neg{{$}}
# LLVM-SHNAME-NEXT: 0x5 R_X86_64_PLT32 rel_pos{{$}}
# LLVM-SHNAME-NEXT: 0x9 R_X86_64_64 rel_64{{$}}
# LLVM-SHNAME-NEXT: }
# LLVM-SHNAME-NEXT: warning: '[[FILE]]': unable to get the name of SHT_RELA section with index 3: a section [index 3] has an invalid sh_name (0xffffffff) offset which goes past the end of the section name string table
# LLVM-SHNAME-NEXT: Section (3) <?> {
# LLVM-SHNAME-NEXT: 0x0 R_X86_64_NONE rela_0 0x0
# LLVM-SHNAME-NEXT: 0x1 R_X86_64_PC32 rela_neg 0xFFFFFFFFFFFFFFFF
# LLVM-SHNAME-NEXT: 0x5 R_X86_64_PLT32 rela_pos 0x2
# LLVM-SHNAME-NEXT: 0xFFFFFFFFFFFFFFFF R_X86_64_64 rela_minneg 0x8000000000000000
# LLVM-SHNAME-NEXT: 0x9 R_X86_64_32S rela_maxpos 0x7FFFFFFFFFFFFFFF
# LLVM-SHNAME-NEXT: }
# LLVM-SHNAME-NEXT: ]
# GNU-SHNAME: warning: '[[FILE]]': unable to get the name of SHT_REL section with index 2: a section [index 2] has an invalid sh_name (0xffffffff) offset which goes past the end of the section name string table
# GNU-SHNAME: Relocation section '<?>' at offset 0x51 contains 4 entries:
# GNU-SHNAME-NEXT: Offset Info Type Symbol's Value Symbol's Name
# GNU-SHNAME-NEXT: 0000000000000000 0000000100000000 R_X86_64_NONE 0000000000000000 rel_0
# GNU-SHNAME-NEXT: 0000000000000001 0000000200000002 R_X86_64_PC32 0000000000000001 rel_neg
# GNU-SHNAME-NEXT: 0000000000000005 0000000300000004 R_X86_64_PLT32 0000000000000002 rel_pos
# GNU-SHNAME-NEXT: 0000000000000009 0000000400000001 R_X86_64_64 ffffffffffffffff rel_64
# GNU-SHNAME: warning: '[[FILE]]': unable to get the name of SHT_RELA section with index 3: a section [index 3] has an invalid sh_name (0xffffffff) offset which goes past the end of the section name string table
# GNU-SHNAME: Relocation section '<?>' at offset 0x91 contains 5 entries:
# GNU-SHNAME-NEXT: Offset Info Type Symbol's Value Symbol's Name + Addend
# GNU-SHNAME-NEXT: 0000000000000000 0000000500000000 R_X86_64_NONE 0000000000000000 rela_0 + 0
# GNU-SHNAME-NEXT: 0000000000000001 0000000600000002 R_X86_64_PC32 0000000000000001 rela_neg - 1
# GNU-SHNAME-NEXT: 0000000000000005 0000000700000004 R_X86_64_PLT32 0000000000000002 rela_pos + 2
# GNU-SHNAME-NEXT: ffffffffffffffff 0000000800000001 R_X86_64_64 0000000000000003 rela_minneg - 8000000000000000
# GNU-SHNAME-NEXT: 0000000000000009 000000090000000b R_X86_64_32S ffffffffffffffff rela_maxpos + 7fffffffffffffff
## Check that we report a warning when a relocation has a
## symbol index past the end of the symbol table
# RUN: yaml2obj %s --docnum=3 -o %t3
# RUN: llvm-readobj --relocs %t3 2>&1 | \
# RUN: FileCheck %s --implicit-check-not=warning: -DFILE=%t3 --check-prefix=LLVM-SYMNDX
# RUN: llvm-readelf --relocs %t3 2>&1 | \
# RUN: FileCheck %s --implicit-check-not=warning: -DFILE=%t3 --check-prefix=GNU-SYMNDX
# LLVM-SYMNDX: Relocations [
# LLVM-SYMNDX-NEXT: Section (1) .rela.text {
# LLVM-SYMNDX-NEXT: warning: '[[FILE]]': unable to print relocation 0 in SHT_RELA section with index 1: unable to read an entry with index 2 from SHT_SYMTAB section with index 2: can't read an entry at 0x30: it goes past the end of the section (0x30)
# LLVM-SYMNDX-NEXT: warning: '[[FILE]]': unable to print relocation 1 in SHT_RELA section with index 1: unable to read an entry with index 3 from SHT_SYMTAB section with index 2: can't read an entry at 0x48: it goes past the end of the section (0x30)
# LLVM-SYMNDX-NEXT: }
# LLVM-SYMNDX-NEXT: ]
# GNU-SYMNDX: Relocation section '.rela.text' at offset 0x40 contains 2 entries:
# GNU-SYMNDX-NEXT: Offset Info Type Symbol's Value Symbol's Name + Addend
# GNU-SYMNDX-NEXT: warning: '[[FILE]]': unable to print relocation 0 in SHT_RELA section with index 1: unable to read an entry with index 2 from SHT_SYMTAB section with index 2: can't read an entry at 0x30: it goes past the end of the section (0x30)
# GNU-SYMNDX-NEXT: warning: '[[FILE]]': unable to print relocation 1 in SHT_RELA section with index 1: unable to read an entry with index 3 from SHT_SYMTAB section with index 2: can't read an entry at 0x48: it goes past the end of the section (0x30)
--- !ELF
FileHeader:
Class: ELFCLASS64
Data: ELFDATA2LSB
Type: ET_DYN
Machine: EM_X86_64
Sections:
- Name: .rela.text
Type: SHT_RELA
Relocations:
- Type: R_X86_64_NONE
Symbol: 0x2
- Type: R_X86_64_NONE
Symbol: 0x3
Symbols:
- Name: foo
|
