summaryrefslogtreecommitdiff
path: root/ld/testsuite/ld-ifunc/ifunc.exp
blob: fdb65d01f9f00a91c787ac58e192068263e4178a (plain)
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
# Expect script for linker support of IFUNC symbols and relocations.
#
#   Copyright (C) 2009-2022 Free Software Foundation, Inc.
#   Contributed by Red Hat.
#
# This file is part of the GNU Binutils.
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 3 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
# MA 02110-1301, USA.
#
# Written by Nick Clifton <nickc@redhat.com>


if { ![is_elf_format] || ![supports_gnu_osabi]
     || [istarget alpha-*-*]
     || [istarget arc*-*-*]
     || [istarget am33*-*-*]
     || [istarget bfin-*-*]
     || [istarget cris*-*-*]
     || [istarget frv-*-*]
     || [istarget lm32-*-*]
     || [istarget m32r-*-*]
     || [istarget m68k-*-*]
     || [istarget microblaze-*-*]
     || [istarget mips*-*-*]
     || [istarget mn10300-*-*]
     || [istarget nds32*-*-*]
     || [istarget nios2-*-*]
     || [istarget or1k-*-*]
     || [istarget score*-*-*]
     || [istarget sh*-*-*]
     || [istarget tic6x-*-*]
     || [istarget tile*-*-*]
     || [istarget vax-*-*] } {
    verbose "IFUNC tests not run - target does not support IFUNC"
    return
}

# Skip targets where -shared is not supported

if ![check_shared_lib_support] {
    return
}

set saved_ASFLAGS "$ASFLAGS"
if { [istarget "i?86-*-*"] || [istarget "x86_64-*-*"] } {
    set ASFLAGS "$ASFLAGS -mx86-used-note=no"
}

# This test does not need a compiler...
run_dump_test "ifuncmod5"

set test_list [lsort [glob -nocomplain $srcdir/$subdir/*.d]]
foreach t $test_list {
    # We need to strip the ".d", but can leave the dirname.
    verbose [file rootname $t]
    run_dump_test [file rootname $t]
}

# We need a working compiler.  (Strictly speaking this is
# not true, we could use target specific assembler files).
if { ![check_compiler_available] } {
    verbose "IFUNC tests not run - no compiler available"
    return
}

# A procedure to check the OS/ABI field in the ELF header of a binary file.
proc check_osabi { binary_file expected_osabi } {
    global READELF
    global READELFFLAGS

    catch "exec $READELF $READELFFLAGS --file-header $binary_file > readelf.out" got

    if ![string match "" $got] then {
	verbose "proc check_osabi: Readelf produced unexpected out processing $binary_file: $got"
	return 0
    }

    if { ![regexp "\n\[ \]*OS/ABI:\[ \]*(.+)\n\[ \]*ABI" \
	   [file_contents readelf.out] nil osabi] } {
	verbose "proc check_osabi: Readelf failed to extract an ELF header from $binary_file"
	return 0
    }

    if { $osabi == $expected_osabi } {
	return 1
    }

    verbose "Expected OSABI: $expected_osabi, Obtained osabi: $osabi"

    return 0
}

# A procedure to confirm that a file contains the IFUNC symbol.
# Returns -1 upon error, 0 if the symbol was not found and 1 if it was found.
proc contains_ifunc_symbol { binary_file } {
    global READELF
    global READELFFLAGS

    catch "exec $READELF $READELFFLAGS --symbols $binary_file > readelf.out" got

    if ![string match "" $got] then {
	verbose "proc contains_ifunc_symbol: Readelf produced unexpected out processing $binary_file: $got"
	return -1
    }

    # Look for a line like this:
    #    58: 0000000000400600    30 IFUNC   GLOBAL DEFAULT   12 library_func2
    # with perhaps some other info between the visibility and section

    if { ![regexp ".*\[ \]*IFUNC\[ \]+GLOBAL\[ \]+DEFAULT .* \[UND0-9\]+\[ \]+library_func2\n" [file_contents readelf.out]] } {
	return 0
    }

    return 1
}

# A procedure to confirm that a file contains the R_*_IRELATIVE
# relocation.
# Returns -1 upon error, 0 if the relocation was not found and 1 if
# it was found.
proc contains_irelative_reloc { binary_file } {
    global READELF
    global READELFFLAGS

    catch "exec $READELF $READELFFLAGS --relocs --wide $binary_file > readelf.out" got

    if ![string match "" $got] then {
	verbose "proc contains_irelative_reloc: Readelf produced unexpected out processing $binary_file: $got"
	return -1
    }

    # Look for a line like this:
    #    0000000000600ab0  0000000000000025 R_X86_64_IRELATIVE      000000000040061c
    #    080496f4  0000002a R_386_IRELATIVE


    if { ![regexp "\[0-9a-f\]+\[ \]+\[0-9a-f\]+\[ \]+R_(\[_0-9A-Z\]+_IREL(|ATIVE)|PARISC_IPLT).*\n" [file_contents readelf.out]] } {
	return 0
    }

    return 1
}

# A procedure to confirm that a file contains a relocation that references an IFUNC symbol.
# Returns -1 upon error, 0 if the reloc was not found and 1 if it was found.
proc contains_ifunc_reloc { binary_file } {
    global READELF
    global READELFFLAGS

    catch "exec $READELF $READELFFLAGS --relocs $binary_file > readelf.out" got

    if ![string match "" $got] then {
	verbose "proc contains_ifunc_reloc: Readelf produced unexpected out processing $binary_file: $got"
	return -1
    }

    if [string match "" [file_contents readelf.out]] then {
	verbose "No relocs found in $binary_file"
	return 0
    }

    if { ![regexp "\\(\\)" [file_contents readelf.out]] } {
	return 0
    }

    return 1
}

set fails 0

# Disable LTO for these tests.
set cc_cmd "$CC_FOR_TARGET"
if {[check_lto_available]} {
   append cc_cmd " -fno-lto"
}

# Create the object files, libraries and executables.
if ![ld_compile "$cc_cmd -c -fPIC" "$srcdir/$subdir/prog.c" "tmpdir/shared_prog.o"] {
    fail "Could not create a PIC object file"
    set fails [expr $fails + 1]
}
if ![ld_compile "$cc_cmd -c $NOPIE_CFLAGS" "$srcdir/$subdir/prog.c" "tmpdir/static_prog.o"] {
    fail "Could not create a non-PIC object file"
    set fails [expr $fails + 1]
}
if ![ld_compile "$cc_cmd -c -fPIC -DWITH_IFUNC" "$srcdir/$subdir/lib.c" "tmpdir/shared_ifunc.o"] {
    fail "Could not create a PIC object file containing an IFUNC symbol"
    set fails [expr $fails + 1]
}
if ![ld_compile "$cc_cmd -c $NOPIE_CFLAGS -DWITH_IFUNC" "$srcdir/$subdir/lib.c" "tmpdir/static_ifunc.o"] {
    fail "Could not create a non-PIC object file containing an IFUNC symbol"
    set fails [expr $fails + 1]
}
if ![ld_compile "$cc_cmd -c -DWITHOUT_IFUNC" "$srcdir/$subdir/lib.c" "tmpdir/static_noifunc.o"] {
    fail "Could not create an ordinary non-PIC object file"
    set fails [expr $fails + 1]
}
if ![ld_assemble $as "$srcdir/ld-elf/empty.s" "tmpdir/empty.o"] {
    fail "Could not create an empty object file"
    set fails [expr $fails + 1]
}
if ![ld_compile "$cc_cmd -c" "$srcdir/$subdir/test-1.c" "tmpdir/test-1.o"] {
    fail "Could not create test-1.o"
    set fails [expr $fails + 1]
}
if ![ld_compile "$cc_cmd -fPIC -c" "$srcdir/$subdir/test-2.c" "tmpdir/test-2.o"] {
    fail "Could not create test-2.o"
    set fails [expr $fails + 1]
}

if { $fails != 0 } {
    return
}

if ![ld_link $ld "tmpdir/libshared_ifunc.so" "-shared tmpdir/shared_ifunc.o"] {
    fail "Could not create a shared library containing an IFUNC symbol"
    set fails [expr $fails + 1]
}
if ![ar_simple_create $ar "" "tmpdir/libifunc.a" "tmpdir/static_ifunc.o"] {
    fail "Could not create a static library containing an IFUNC symbol"
    set fails [expr $fails + 1]
}

if { $fails != 0 } {
    return
}

if ![ld_link $CC_FOR_TARGET "tmpdir/dynamic_prog" "-Wl,--no-as-needed,-rpath=./tmpdir,-Bdynamic -Ltmpdir tmpdir/shared_prog.o -lshared_ifunc"] {
    fail "Could not link a dynamic executable"
    set fails [expr $fails + 1]
}
if ![ld_link $CC_FOR_TARGET "tmpdir/local_prog" "$NOPIE_LDFLAGS -Wl,--no-as-needed,-rpath=./tmpdir -Ltmpdir tmpdir/static_prog.o -lifunc"] {
    fail "Could not link a dynamic executable using local ifunc"
    set fails [expr $fails + 1]
}
if ![string match "" $STATIC_LDFLAGS] {
    if ![ld_link $CC_FOR_TARGET "tmpdir/static_prog" "-static -Ltmpdir tmpdir/static_prog.o -lifunc"] {
	fail "Could not link a static executable"
	set fails [expr $fails + 1]
    }
}
if ![ld_link $ld "tmpdir/static_nonifunc_prog" "-static tmpdir/empty.o"] {
    fail "Could not link a non-ifunc using static executable"
    set fails [expr $fails + 1]
}
if ![ld_link $CC_FOR_TARGET "tmpdir/test-1" "-Wl,--no-as-needed,-rpath=./tmpdir tmpdir/test-1.o tmpdir/libshared_ifunc.so"] {
    fail "Could not link test-1"
    set fails [expr $fails + 1]
}
if ![ld_link $ld "tmpdir/libtest-2.so" "-shared tmpdir/test-2.o"] {
    fail "Could not link libtest-2.so"
    set fails [expr $fails + 1]
}
if ![ld_link $ld "tmpdir/libtest-2-now.so" "-shared -z now tmpdir/test-2.o"] {
    fail "Could not link libtest-2-now.so"
    set fails [expr $fails + 1]
}

if { $fails == 0 } {
  pass "Building ifunc binaries"
  set fails 0
} else {
    return
}

# Check the executables and shared libraries
#
# The linked ifunc using executables and the shared library containing
# ifunc should have an OSABI field of GNU.  The linked non-ifunc using
# executable should have an OSABI field of NONE (aka System V).

switch -glob $target_triplet {
    hppa*-*-linux* { set expected_none {UNIX - GNU} }
    default { set expected_none {UNIX - System V} }
}

if {! [check_osabi tmpdir/libshared_ifunc.so {UNIX - GNU}]} {
    fail "Shared libraries containing ifunc does not have an OS/ABI field of GNU"
    set fails [expr $fails + 1]
}
if {! [check_osabi tmpdir/local_prog {UNIX - GNU}]} {
    fail "Local ifunc-using executable does not have an OS/ABI field of GNU"
    set fails [expr $fails + 1]
}
if { ![string match "" $STATIC_LDFLAGS] \
     && ![check_osabi tmpdir/static_prog {UNIX - GNU}]} {
    fail "Static ifunc-using executable does not have an OS/ABI field of GNU"
    set fails [expr $fails + 1]
}
if {! [check_osabi tmpdir/dynamic_prog $expected_none]} {
    fail "Dynamic ifunc-using executable does not have an OS/ABI field of $expected_none"
    set fails [expr $fails + 1]
}
if {! [check_osabi tmpdir/static_nonifunc_prog $expected_none]} {
    fail "Static non-ifunc-using executable does not have an OS/ABI field of $expected_none"
    set fails [expr $fails + 1]
}

# The linked ifunc using executables and the shared library containing
# ifunc should contain an IFUNC symbol.  The non-ifunc using executable
# should not.

if {[contains_ifunc_symbol tmpdir/libshared_ifunc.so] != 1} {
    fail "Shared libraries containing ifunc does not contain an IFUNC symbol"
    set fails [expr $fails + 1]
}
if {[contains_ifunc_symbol tmpdir/local_prog] != 1} {
    fail "Local ifunc-using executable does not contain an IFUNC symbol"
    set fails [expr $fails + 1]
}
if { ![string match "" $STATIC_LDFLAGS] \
     && [contains_ifunc_symbol tmpdir/static_prog] != 1} {
    fail "Static ifunc-using executable does not contain an IFUNC symbol"
    set fails [expr $fails + 1]
}
if {[contains_ifunc_symbol tmpdir/dynamic_prog] != 0} {
    fail "Dynamic ifunc-using executable contains an IFUNC symbol"
    set fails [expr $fails + 1]
}
if {[contains_ifunc_symbol tmpdir/static_nonifunc_prog] != 0} {
    fail "Static non-ifunc-using executable contains an IFUNC symbol"
    set fails [expr $fails + 1]
}
if {[contains_ifunc_symbol tmpdir/test-1] != 0} {
    fail "test-1 contains IFUNC symbols"
    set fails [expr $fails + 1]
}
if {[contains_ifunc_symbol tmpdir/libtest-2.so] != 0} {
    fail "libtest-2.so contains IFUNC symbols"
    set fails [expr $fails + 1]
}
if {[contains_ifunc_symbol tmpdir/libtest-2-now.so] != 0} {
    fail "libtest-2-now.so contains IFUNC symbols"
    set fails [expr $fails + 1]
}

# The linked ifunc using executables and shared libraries should contain
# a dynamic reloc referencing the IFUNC symbol.  (Even the static
# executable which should have a dynamic section created for it).  The
# non-ifunc using executable should not.

if {[contains_irelative_reloc tmpdir/libshared_ifunc.so] != 1} {
    fail "ifunc-using shared library does not contain R_*_IRELATIVE relocation"
    set fails [expr $fails + 1]
}
if {[contains_irelative_reloc tmpdir/local_prog] != 1} {
    fail "Local ifunc-using executable does not contain R_*_IRELATIVE relocation"
    set fails [expr $fails + 1]
}
if { ![string match "" $STATIC_LDFLAGS] \
    && ![istarget hppa*-*-*] \
    && [contains_irelative_reloc tmpdir/static_prog] != 1} {
    fail "Static ifunc-using executable does not contain R_*_IRELATIVE relocation"
    set fails [expr $fails + 1]
}
if {[contains_ifunc_reloc tmpdir/dynamic_prog] != 0} {
    fail "Dynamic ifunc-using executable contains a reloc against an IFUNC symbol"
    set fails [expr $fails + 1]
}
if {[contains_ifunc_reloc tmpdir/static_nonifunc_prog] == 1} {
    fail "Static non-ifunc-using executable contains a reloc against an IFUNC symbol!"
    set fails [expr $fails + 1]
}

if { $fails == 0 } {
  pass "Checking ifunc binaries"
}

run_cc_link_tests [list \
    [list \
	"Build libpr16467a.so" \
	"-shared -Wl,--version-script=pr16467a.map" \
	"-fPIC" \
	{ pr16467a.c } \
	{} \
	"libpr16467a.so" \
    ] \
    [list \
	"Build libpr16467b.a" \
	"" \
	"-fPIC" \
	{ pr16467b.c } \
	{} \
	"libpr16467b.a" \
    ] \
    [list \
	"Build libpr16467b.so" \
	"-shared -Wl,--as-needed tmpdir/pr16467b.o tmpdir/libpr16467a.so \
	 -Wl,--version-script=pr16467b.map" \
	"-fPIC" \
	{ dummy.c } \
	{} \
	"libpr16467b.so" \
    ] \
    [list \
	"Build libpr16467c.a" \
	"" \
	"" \
	{ pr16467c.c } \
	{} \
	"libpr16467c.a" \
    ] \
    [list \
	"Build libpr16467an.so" \
	"-shared -Wl,-z,now -Wl,--version-script=pr16467a.map" \
	"-fPIC" \
	{ pr16467a.c } \
	{} \
	"libpr16467an.so" \
    ] \
    [list \
	"Build libpr16467bn.so" \
	"-shared -Wl,--as-needed tmpdir/pr16467b.o tmpdir/libpr16467an.so \
	 -Wl,--version-script=pr16467b.map" \
	"-fPIC" \
	{ dummy.c } \
	{} \
	"libpr16467bn.so" \
    ] \
]

run_ld_link_exec_tests [list \
    [list \
	"Common symbol override ifunc test 1a" \
	"-static" \
	"" \
	{ ifunc-common-1a.c ifunc-common-1b.c } \
	"ifunc-common-1a" \
	"ifunc-common-1.out" \
	"-g" \
    ] \
    [list \
	"Common symbol override ifunc test 1b" \
	"-static" \
	"" \
	{ ifunc-common-1b.c ifunc-common-1a.c } \
	"ifunc-common-1b" \
	"ifunc-common-1.out" \
	"-g" \
    ] \
]

# Run-time tests which require working IFUNC support.
if { ![check_ifunc_available] } {
    return
}

run_cc_link_tests [list \
    [list \
	"Build ifunc-lib.so" \
	"-shared" \
	"-fPIC" \
	{ ifunc-lib.c } \
	{} \
	"libifunc-lib.so" \
    ] \
    [list \
	"Build ifunc-libn.so" \
	"-shared -Wl,-z,now" \
	"-fPIC" \
	{ ifunc-lib.c } \
	{} \
	"libifunc-libn.so" \
    ] \
]

run_ld_link_exec_tests [list \
    [list \
	"Run pr16467" \
	"-Wl,--no-as-needed tmpdir/pr16467c.o tmpdir/libpr16467b.so tmpdir/libpr16467a.so" \
	"" \
	{ dummy.c } \
	"pr16467" \
	"pr16467.out" \
	"" \
    ] \
    [list \
	"Run pr16467 (-z now)" \
	"-Wl,-z,now -Wl,--no-as-needed tmpdir/pr16467c.o tmpdir/libpr16467bn.so tmpdir/libpr16467an.so" \
	"" \
	{ dummy.c } \
	"pr16467n" \
	"pr16467.out" \
	"" \
    ] \
    [list \
	"Run ifunc-main" \
	"-Wl,--no-as-needed tmpdir/libifunc-lib.so" \
	"" \
	{ ifunc-main.c } \
	"ifunc-main" \
	"ifunc-main.out" \
    ] \
    [list \
	"Run ifunc-main with -fpic" \
	"-Wl,--no-as-needed tmpdir/libifunc-lib.so" \
	"" \
	{ ifunc-main.c } \
	"ifunc-main" \
	"ifunc-main.out" \
	"-fpic" \
    ] \
    [list \
	"Run ifunc-main (-z now)" \
	"-Wl,-z,now -Wl,--no-as-needed tmpdir/libifunc-libn.so" \
	"" \
	{ ifunc-main.c } \
	"ifunc-mainn" \
	"ifunc-main.out" \
    ] \
    [list \
	"Run ifunc-main with PIE (-z now)" \
	"-pie -Wl,-z,now -Wl,--no-as-needed tmpdir/libifunc-libn.so" \
	"" \
	{ ifunc-main.c } \
	"ifunc-mainpn" \
	"ifunc-main.out" \
	"-fpie" \
    ] \
]

# Run-time tests which require working ifunc attribute support.
if { ![check_ifunc_attribute_available] } {
    return
}

run_cc_link_tests [list \
    [list \
	"Build pr18808a.o" \
	"" \
	"" \
	{ pr18808a.c } \
	"" \
	"" \
    ] \
    [list \
	"Build libpr18808.so" \
	"-shared" \
	"-fPIC -O2 -g" \
	{ pr18808b.c } \
	{} \
	"libpr18808.so" \
    ] \
    [list \
	"Build libpr18808n.so" \
	"-shared -Wl,-z,now" \
	"-fPIC -O2 -g" \
	{ pr18808b.c } \
	{} \
	"libpr18808n.so" \
    ] \
    [list \
	"Build pr18841a.o" \
	"" \
	"$NOPIE_CFLAGS" \
	{ pr18841a.c } \
	"" \
	"" \
    ] \
    [list \
	"Build libpr18841b.so" \
	"-shared" \
	"-fPIC -O0 -g" \
	{ pr18841b.c } \
	{} \
	"libpr18841b.so" \
    ] \
    [list \
	"Build libpr18841c.so" \
	"-shared" \
	"-fPIC -O0 -g" \
	{ pr18841c.c } \
	{} \
	"libpr18841c.so" \
    ] \
    [list \
	"Build libpr18841bn.so" \
	"-Wl,-z,now -shared" \
	"-fPIC -O0 -g" \
	{ pr18841b.c } \
	{} \
	"libpr18841bn.so" \
    ] \
    [list \
	"Build libpr18841cn.so" \
	"-shared" \
	"-Wl,-z,now -fPIC -O0 -g" \
	{ pr18841c.c } \
	{} \
	"libpr18841cn.so" \
    ] \
    [list \
	"Build libpr23169a.so" \
	"-shared" \
	"-fPIC -O2 -g" \
	{ pr23169a.c } \
	{} \
	"libpr23169a.so" \
    ] \
    [list \
	"Build libpr23169b.so" \
	"-shared -Wl,-z,now" \
	"-fPIC -O2 -g" \
	{ pr23169a.c } \
	{} \
	"libpr23169b.so" \
    ] \
    [list \
	"Build pr23169a" \
	"$NOPIE_LDFLAGS -Wl,--no-as-needed tmpdir/libpr23169a.so" \
	"$NOPIE_CFLAGS -O2 -g" \
	{ pr23169b.c pr23169c.c } \
	{{readelf {--dyn-syms} pr23169a.rd} \
	 {readelf {-r -W} pr23169b.rd}} \
	"pr23169a" \
    ] \
    [list \
	"Build pr23169b" \
	"-pie -Wl,--no-as-needed tmpdir/libpr23169a.so" \
	"-fPIE -O2 -g" \
	{ pr23169b.c pr23169c.c } \
	{{readelf {--dyn-syms} pr23169c.rd} \
	 {readelf {-r -W} pr23169b.rd}} \
	"pr23169b" \
    ] \
    [list \
	"Build pr23169c" \
	"$NOPIE_LDFLAGS -Wl,--no-as-needed tmpdir/libpr23169a.so" \
	"-fPIE -O2 -g" \
	{ pr23169b.c pr23169c.c } \
	{{readelf {--dyn-syms} pr23169a.rd} \
	 {readelf {-r -W} pr23169b.rd}} \
	"pr23169c" \
    ] \
    [list \
	"Build pr23169d" \
	"$NOPIE_LDFLAGS -Wl,--no-as-needed,-z,now tmpdir/libpr23169b.so" \
	"$NOPIE_CFLAGS -O2 -g" \
	{ pr23169b.c pr23169c.c } \
	{{readelf {--dyn-syms} pr23169a.rd} \
	 {readelf {-r -W} pr23169b.rd}} \
	"pr23169d" \
    ] \
    [list \
	"Build pr23169f" \
	"$NOPIE_LDFLAGS -Wl,--no-as-needed,-z,now tmpdir/libpr23169b.so" \
	"-fPIE -O2 -g" \
	{ pr23169b.c pr23169c.c } \
	{{readelf {--dyn-syms} pr23169a.rd} \
	 {readelf {-r -W} pr23169b.rd}} \
	"pr23169f" \
    ] \
]

run_ld_link_exec_tests [list \
    [list \
	"Run pr18808" \
	"-Wl,--no-as-needed tmpdir/pr18808a.o tmpdir/libpr18808.so" \
	"" \
	{ dummy.c } \
	"pr18808" \
	"pr18808.out" \
    ] \
    [list \
	"Run pr18808 (-z now)" \
	"-Wl,-z,now -Wl,--no-as-needed tmpdir/pr18808a.o tmpdir/libpr18808n.so" \
	"" \
	{ dummy.c } \
	"pr18808n" \
	"pr18808.out" \
    ] \
    [list \
	"Run pr18841 with libpr18841b.so" \
	"$NOPIE_LDFLAGS -Wl,--no-as-needed tmpdir/pr18841a.o tmpdir/libpr18841b.so" \
	"$NOPIE_CFLAGS" \
	{ dummy.c } \
	"pr18841b" \
	"pr18841.out" \
    ] \
    [list \
	"Run pr18841 with libpr18841c.so" \
	"$NOPIE_LDFLAGS -Wl,--as-needed tmpdir/pr18841a.o tmpdir/libpr18841c.so" \
	"$NOPIE_CFLAGS" \
	{ dummy.c } \
	"pr18841c" \
	"pr18841.out" \
    ] \
    [list \
	"Run pr18841 with libpr18841bn.so (-z now)" \
	"$NOPIE_LDFLAGS -Wl,-z,now -Wl,--no-as-needed tmpdir/pr18841a.o tmpdir/libpr18841bn.so" \
	"$NOPIE_CFLAGS" \
	{ dummy.c } \
	"pr18841bn" \
	"pr18841.out" \
    ] \
    [list \
	"Run pr18841 with libpr18841cn.so (-z now)" \
	"$NOPIE_LDFLAGS -Wl,-z,now -Wl,--as-needed tmpdir/pr18841a.o tmpdir/libpr18841cn.so" \
	"$NOPIE_CFLAGS" \
	{ dummy.c } \
	"pr18841cn" \
	"pr18841.out" \
    ] \
    [list \
	"Run pr29216" \
	"$NOPIE_LDFLAGS" \
	"" \
	{ pr29216.c } \
	"pr29216" \
	"pass.out" \
	"-fPIC" \
    ] \
]

# The pr23169 testcase is not valid.  In general, you can't call ifunc
# resolvers in another binary unless you know what you're doing.  In
# particular you must ensure that the binary containing the resolver
# is relocated before the resolver is called (for example, the
# function addresses returned by the resolver may be loaded from the
# GOT).
# That does not happen for the pr23169 testcase where the resolver is
# in the executable (which is relocated last by ld.so).
if { [isnative]
     && !([istarget "powerpc-*-*"]
           || [istarget "aarch64*-*-*"]
           || [istarget "sparc*-*-*"]
           || [istarget "riscv*-*-*"]) } {
run_ld_link_exec_tests [list \
    [list \
	"Run pr23169a" \
	"$NOPIE_LDFLAGS -Wl,--no-as-needed tmpdir/libpr23169a.so" \
	"" \
	{ pr23169b.c pr23169c.c } \
	"pr23169a" \
	"pass.out" \
	"$NOPIE_CFLAGS -O2 -g" \
    ] \
    [list \
	"Run pr23169b" \
	"-pie -Wl,--no-as-needed tmpdir/libpr23169a.so" \
	"" \
	{ pr23169b.c pr23169c.c } \
	"pr23169b" \
	"pass.out" \
	"-fPIE -O2 -g" \
    ] \
    [list \
	"Run pr23169c" \
	"$NOPIE_LDFLAGS -Wl,--no-as-needed tmpdir/libpr23169a.so" \
	"" \
	{ pr23169b.c pr23169c.c } \
	"pr23169c" \
	"pass.out" \
	"-fPIE -O2 -g" \
    ] \
    [list \
	"Run pr23169d" \
	"$NOPIE_LDFLAGS -Wl,--no-as-needed,-z,now tmpdir/libpr23169b.so" \
	"" \
	{ pr23169b.c pr23169c.c } \
	"pr23169d" \
	"pass.out" \
	"$NOPIE_CFLAGS -O2 -g" \
    ] \
    [list \
	"Run pr23169f" \
	"$NOPIE_LDFLAGS -Wl,--no-as-needed,-z,now tmpdir/libpr23169b.so" \
	"" \
	{ pr23169b.c pr23169c.c } \
	"pr23169f" \
	"pass.out" \
	"-fPIE -O2 -g" \
    ] \
]
if { $STATIC_PIE_LDFLAGS != "" } then {
    run_ld_link_exec_tests [list \
	[list \
	    "Run pr23169g" \
	    "$STATIC_PIE_LDFLAGS" \
	    "" \
	    { pr23169a.c pr23169b.c pr23169c.c } \
	    "pr23169g" \
	    "pass.out" \
	    "-fPIE -O2 -g" \
	] \
]
}
}

set ASFLAGS "$saved_ASFLAGS"