aboutsummaryrefslogtreecommitdiff
path: root/gdb/testsuite/gdb.base/break.exp
blob: 16d05b758e0b3b76ea077f6987f507c17e8662e6 (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
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
#   Copyright 1988, 1990, 1991, 1992, 1994, 1995, 1996, 1997, 1998, 1999,
#   2000, 2002, 2003, 2007 Free Software Foundation, Inc.

# 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 2 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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.  

# Please email any bugs, comments, and/or additions to this file to:
# bug-gdb@prep.ai.mit.edu

# This file was written by Rob Savoye. (rob@cygnus.com)

if $tracelevel then {
    strace $tracelevel
}


#
# test running programs
#
set prms_id 0
set bug_id 0

set testfile "break"
set srcfile ${testfile}.c
set srcfile1 ${testfile}1.c
set binfile ${objdir}/${subdir}/${testfile}

if  { [gdb_compile "${srcdir}/${subdir}/${srcfile}" "${binfile}0.o" object {debug nowarnings}] != "" } {
     untested break.exp
     return -1
}

if  { [gdb_compile "${srcdir}/${subdir}/${srcfile1}" "${binfile}1.o" object {debug nowarnings}] != "" } {
     untested break.exp
     return -1
}

if  { [gdb_compile "${binfile}0.o ${binfile}1.o" "${binfile}" executable {debug nowarnings}] != "" } {
     untested break.exp
     return -1
}

if [get_compiler_info ${binfile}] {
    return -1
}

gdb_exit
gdb_start
gdb_reinitialize_dir $srcdir/$subdir
gdb_load ${binfile}

if [target_info exists gdb_stub] {
    gdb_step_for_stub;
}
#
# test simple breakpoint setting commands
#

# Test deleting all breakpoints when there are none installed,
# GDB should not prompt for confirmation.
# Note that lib/gdb.exp provides a "delete_breakpoints" proc
# for general use elsewhere.

send_gdb "delete breakpoints\n"
gdb_expect {
     -re "Delete all breakpoints.*$" {
	    send_gdb "y\n"
	    gdb_expect {
		-re "$gdb_prompt $" {
		    fail "Delete all breakpoints when none (unexpected prompt)"
		}
		timeout	{ fail "Delete all breakpoints when none (timeout after unexpected prompt)" }
	    }
	}
     -re ".*$gdb_prompt $"       { pass "Delete all breakpoints when none" }
    timeout	            { fail "Delete all breakpoints when none (timeout)" }
}

#
# test break at function
#
gdb_test "break main" \
    "Breakpoint.*at.* file .*$srcfile, line.*" \
    "breakpoint function"

#
# test break at quoted function
#
gdb_test "break \"marker2\"" \
    "Breakpoint.*at.* file .*$srcfile1, line.*" \
    "breakpoint quoted function"

#
# test break at function in file
#
gdb_test "break $srcfile:factorial" \
    "Breakpoint.*at.* file .*$srcfile, line.*" \
    "breakpoint function in file"

set bp_location1 [gdb_get_line_number "set breakpoint 1 here"]

#
# test break at line number
#
# Note that the default source file is the last one whose source text
# was printed.  For native debugging, before we've executed the
# program, this is the file containing main, but for remote debugging,
# it's wherever the processor was stopped when we connected to the
# board.  So, to be sure, we do a list command.
#
gdb_test "list main" \
    ".*main \\(argc, argv, envp\\).*" \
    "use `list' to establish default source file"
gdb_test "break $bp_location1" \
    "Breakpoint.*at.* file .*$srcfile, line $bp_location1\\." \
    "breakpoint line number"

#
# test duplicate breakpoint
#
gdb_test "break $bp_location1" \
    "Note: breakpoint \[0-9\]+ also set at pc.*Breakpoint \[0-9\]+ at.* file .*$srcfile, line $bp_location1\\." \
    "breakpoint duplicate"

set bp_location2 [gdb_get_line_number "set breakpoint 2 here"]

#
# test break at line number in file
#
gdb_test "break $srcfile:$bp_location2" \
    "Breakpoint.*at.* file .*$srcfile, line $bp_location2\\." \
    "breakpoint line number in file"

set bp_location3 [gdb_get_line_number "set breakpoint 3 here"]
set bp_location4 [gdb_get_line_number "set breakpoint 4 here"]

#
# Test putting a break at the start of a multi-line if conditional.
# Verify the breakpoint was put at the start of the conditional.
#
gdb_test "break multi_line_if_conditional" \
    "Breakpoint.*at.* file .*$srcfile, line $bp_location3\\." \
    "breakpoint at start of multi line if conditional"

gdb_test "break multi_line_while_conditional" \
    "Breakpoint.*at.* file .*$srcfile, line $bp_location4\\." \
    "breakpoint at start of multi line while conditional"

set bp_location5 [gdb_get_line_number "set breakpoint 5 here"]
set bp_location6 [gdb_get_line_number "set breakpoint 6 here"]

#
# check to see what breakpoints are set
#
if [target_info exists gdb_stub] {
    set main_line $bp_location5
} else {
    set main_line $bp_location6
}

if {$hp_aCC_compiler} {
    set proto "\\(int\\)"
} else {
    set proto ""
}

set bp_location7 [gdb_get_line_number "set breakpoint 7 here"]
set bp_location8 [gdb_get_line_number "set breakpoint 8 here" $srcfile1]
set bp_location9 [gdb_get_line_number "set breakpoint 9 here" $srcfile1]

gdb_test "info break" \
    "Num Type\[ \]+Disp Enb Address\[ \]+What.*
\[0-9\]+\[\t \]+breakpoint     keep y.* in main at .*$srcfile:$main_line.*
\[0-9\]+\[\t \]+breakpoint     keep y.* in marker2 at .*$srcfile1:($bp_location8|$bp_location9).*
\[0-9\]+\[\t \]+breakpoint     keep y.* in factorial$proto at .*$srcfile:$bp_location7.*
\[0-9\]+\[\t \]+breakpoint     keep y.* in main at .*$srcfile:$bp_location1.*
\[0-9\]+\[\t \]+breakpoint     keep y.* in main at .*$srcfile:$bp_location1.*
\[0-9\]+\[\t \]+breakpoint     keep y.* in main at .*$srcfile:$bp_location2.*
\[0-9\]+\[\t \]+breakpoint     keep y.* in multi_line_if_conditional at .*$srcfile:$bp_location3.*
\[0-9\]+\[\t \]+breakpoint     keep y.* in multi_line_while_conditional at .*$srcfile:$bp_location4" \
    "breakpoint info"

# FIXME: The rest of this test doesn't work with anything that can't
# handle arguments.
# Huh? There doesn't *appear* to be anything that passes arguments
# below.
if [istarget "mips-idt-*"] then {
    return
}

#
# run until the breakpoint at main is hit. For non-stubs-using targets.
#
gdb_run_cmd
gdb_expect {
    -re "Breakpoint \[0-9\]+,.*main .*argc.*argv.* at .*$srcfile:$bp_location6.*$bp_location6\[\t \]+if .argc.* \{.*$gdb_prompt $" {
	pass "run until function breakpoint"
    }
    -re "$gdb_prompt $" {
	fail "run until function breakpoint"
    }
    timeout {
	fail "run until function breakpoint (timeout)"
    }
}

#
# run until the breakpoint at a line number
#
gdb_test continue "Continuing\\..*Breakpoint \[0-9\]+, main \\(argc=.*, argv=.*, envp=.*\\) at .*$srcfile:$bp_location1.*$bp_location1\[\t \]+printf.*factorial.*" \
			"run until breakpoint set at a line number"

#
# Run until the breakpoint set in a function in a file
#
for {set i 6} {$i >= 1} {incr i -1} {
	gdb_test continue "Continuing\\..*Breakpoint \[0-9\]+, factorial \\(value=$i\\) at .*$srcfile:$bp_location7.*$bp_location7\[\t \]+.*if .value > 1. \{.*" \
			"run until file:function($i) breakpoint"
}

#
# Run until the breakpoint set at a quoted function
#
gdb_test continue "Continuing\\..*Breakpoint \[0-9\]+, (0x\[0-9a-f\]+ in )?marker2 \\(a=43\\) at .*$srcfile1:($bp_location8|$bp_location9).*" \
		"run until quoted breakpoint"
#
# run until the file:function breakpoint at a line number in a file
#
gdb_test continue "Continuing\\..*Breakpoint \[0-9\]+, main \\(argc=.*, argv=.*, envp=.*\\) at .*$srcfile:$bp_location2.*$bp_location2\[\t \]+argc = \\(argc == 12345\\);.*" \
		"run until file:linenum breakpoint"

# Test break at offset +1
set bp_location10 [gdb_get_line_number "set breakpoint 10 here"]

gdb_test "break +1" \
    "Breakpoint.*at.* file .*$srcfile, line $bp_location10\\." \
    "breakpoint offset +1"

# Check to see if breakpoint is hit when stepped onto

gdb_test "step" \
    ".*Breakpoint \[0-9\]+, main \\(argc=.*, argv=.*, envp=.*\\) at .*$srcfile:$bp_location10.*$bp_location10\[\t \]+return argc;.*breakpoint 10 here.*" \
    "step onto breakpoint"

# Check to see if breakpoint can be set on ending brace of function
set bp_location10a [gdb_get_line_number "set breakpoint 10a here"]

gdb_test "break $bp_location10a" \
    "Breakpoint.*at.* file .*$srcfile, line $bp_location10a\\." \
    "setting breakpoint at }"

gdb_test "continue" \
    ".*Breakpoint \[0-9\]+, main \\(argc=.*, argv=.*, envp=.*\\) at .*$srcfile:$bp_location10a.*$bp_location10a\[\t \]+}.*breakpoint 10a here.*" \
    "continue to breakpoint at }"

#
# delete all breakpoints so we can start over, course this can be a test too
#
delete_breakpoints

#
# test temporary breakpoint at function
#

gdb_test "tbreak main" "Breakpoint.*at.* file .*$srcfile, line.*" "Temporary breakpoint function"

#
# test break at function in file
#

gdb_test "tbreak $srcfile:factorial" "Breakpoint.*at.* file .*$srcfile, line.*" \
	"Temporary breakpoint function in file"

#
# test break at line number
#
send_gdb "tbreak $bp_location1\n"
gdb_expect {
    -re "Breakpoint.*at.* file .*$srcfile, line $bp_location1.*$gdb_prompt $" { pass "Temporary breakpoint line number #1" }
	-re ".*$gdb_prompt $"   { pass "Temporary breakpoint line number #1" }
	timeout	    { fail "breakpoint line number #1 (timeout)" }
}

gdb_test "tbreak $bp_location6" "Breakpoint.*at.* file .*$srcfile, line $bp_location6.*" "Temporary breakpoint line number #2"

#
# test break at line number in file
#
send_gdb "tbreak $srcfile:$bp_location2\n"
gdb_expect {
    -re "Breakpoint.*at.* file .*$srcfile, line $bp_location2.*$gdb_prompt $" { pass "Temporary breakpoint line number in file #1" }
	-re ".*$gdb_prompt $"   { pass "Temporary breakpoint line number in file #1" }
	timeout	    { fail "Temporary breakpoint line number in file #1 (timeout)" }
}

set bp_location11 [gdb_get_line_number "set breakpoint 11 here"]
gdb_test  "tbreak $srcfile:$bp_location11" "Breakpoint.*at.* file .*$srcfile, line $bp_location11.*" "Temporary breakpoint line number in file #2"

#
# check to see what breakpoints are set (temporary this time)
#
gdb_test "info break" "Num Type.*Disp Enb Address.*What.*\[\r\n\]
\[0-9\]+\[\t \]+breakpoint     del.*y.*in main at .*$srcfile:$main_line.*\[\r\n\]
\[0-9\]+\[\t \]+breakpoint     del.*y.*in factorial$proto at .*$srcfile:$bp_location7.*\[\r\n\]
\[0-9\]+\[\t \]+breakpoint     del.*y.*in main at .*$srcfile:$bp_location1.*\[\r\n\]
\[0-9\]+\[\t \]+breakpoint     del.*y.*in main at .*$srcfile:$bp_location6.*\[\r\n\]
\[0-9\]+\[\t \]+breakpoint     del.*y.*in main at .*$srcfile:$bp_location2.*\[\r\n\]
\[0-9\]+\[\t \]+breakpoint     del.*y.*in main at .*$srcfile:$bp_location11.*" \
    "Temporary breakpoint info"


#***********

# Verify that catchpoints for fork, vfork and exec don't trigger
# inappropriately.  (There are no calls to those system functions
# in this test program.)
#
if ![runto_main] then { fail "break tests suppressed" }

send_gdb "catch\n"
gdb_expect {
  -re "Catch requires an event name.*$gdb_prompt $"\
          {pass "catch requires an event name"}
  -re "$gdb_prompt $"\
          {fail "catch requires an event name"}
  timeout {fail "(timeout) catch requires an event name"}
}


set name "set catch fork, never expected to trigger"
send_gdb "catch fork\n"
gdb_expect {
  -re "Catchpoint \[0-9\]* .fork..*$gdb_prompt $"
          {pass $name}
  -re "Catch of fork not yet implemented.*$gdb_prompt $"
	  {pass $name}
  -re "$gdb_prompt $"
          {fail $name}
  timeout {fail "(timeout) $name"}
}


set name "set catch vfork, never expected to trigger"
send_gdb "catch vfork\n"

# If we are on HP-UX 10.20, we expect an error message to be
# printed if we type "catch vfork" at the gdb gdb_prompt.  This is
# because on HP-UX 10.20, we cannot catch vfork events.

if [istarget "hppa*-hp-hpux10.20"] then {
    gdb_expect {
	-re "Catch of vfork events not supported on HP-UX 10.20..*$gdb_prompt $"
		{pass $name}
	-re "$gdb_prompt $"
		{fail $name}
	timeout {fail "(timeout) $name"}
    }
} else {
    gdb_expect {
	-re "Catchpoint \[0-9\]* .vfork..*$gdb_prompt $"
		{pass $name}
	-re "Catch of vfork not yet implemented.*$gdb_prompt $"
		{pass $name}
	-re "$gdb_prompt $"
		{fail $name}
	timeout {fail "(timeout) $name"}
    }
}

set name "set catch exec, never expected to trigger"
send_gdb "catch exec\n"
gdb_expect {
  -re "Catchpoint \[0-9\]* .exec..*$gdb_prompt $"
          {pass $name}
  -re "Catch of exec not yet implemented.*$gdb_prompt $"
	  {pass $name}
  -re "$gdb_prompt $" {fail $name}
  timeout {fail "(timeout) $name"}
}

# Verify that GDB responds gracefully when asked to set a breakpoint
# on a nonexistent source line.
#
send_gdb "break 999\n"
gdb_expect {
  -re "No line 999 in file .*$gdb_prompt $"\
          {pass "break on non-existent source line"}
  -re "$gdb_prompt $"\
          {fail "break on non-existent source line"}
  timeout {fail "(timeout) break on non-existent source line"}
}

# Run to the desired default location. If not positioned here, the
# tests below don't work.
#
gdb_test "until $bp_location1" "main .* at .*:$bp_location1.*" "until bp_location1"


# Verify that GDB allows one to just say "break", which is treated
# as the "default" breakpoint.  Note that GDB gets cute when printing
# the informational message about other breakpoints at the same
# location.  We'll hit that bird with this stone too.
#
send_gdb "break\n"
gdb_expect {
  -re "Breakpoint \[0-9\]*.*$gdb_prompt $"\
          {pass "break on default location, 1st time"}
  -re "$gdb_prompt $"\
          {fail "break on default location, 1st time"}
  timeout {fail "(timeout) break on default location, 1st time"}
}

send_gdb "break\n"
gdb_expect {
  -re "Note: breakpoint \[0-9\]* also set at .*Breakpoint \[0-9\]*.*$gdb_prompt $"\
          {pass "break on default location, 2nd time"}
  -re "$gdb_prompt $"\
          {fail "break on default location, 2nd time"}
  timeout {fail "(timeout) break on default location, 2nd time"}
}

send_gdb "break\n"
gdb_expect {
  -re "Note: breakpoints \[0-9\]* and \[0-9\]* also set at .*Breakpoint \[0-9\]*.*$gdb_prompt $"\
          {pass "break on default location, 3rd time"}
  -re "$gdb_prompt $"\
          {fail "break on default location, 3rd time"}
  timeout {fail "(timeout) break on default location, 3rd time"}
}

send_gdb "break\n"
gdb_expect {
  -re "Note: breakpoints \[0-9\]*, \[0-9\]* and \[0-9\]* also set at .*Breakpoint \[0-9\]*.*$gdb_prompt $"\
          {pass "break on default location, 4th time"}
  -re "$gdb_prompt $"\
          {fail "break on default location, 4th time"}
  timeout {fail "(timeout) break on default location, 4th time"}
}

# Verify that a "silent" breakpoint can be set, and that GDB is indeed
# "silent" about its triggering.
#
if ![runto_main] then { fail "break tests suppressed" }

send_gdb "break $bp_location1\n"
gdb_expect {
  -re "Breakpoint (\[0-9\]*) at .*, line $bp_location1.*$gdb_prompt $"\
          {pass "set to-be-silent break bp_location1"}
  -re "$gdb_prompt $"\
          {fail "set to-be-silent break bp_location1"}
  timeout {fail "(timeout) set to-be-silent break bp_location1"}
}

send_gdb "commands $expect_out(1,string)\n"
send_gdb "silent\n"
send_gdb "end\n"
gdb_expect {
  -re ".*$gdb_prompt $"\
          {pass "set silent break bp_location1"}
  timeout {fail "(timeout) set silent break bp_location1"}
}

send_gdb "info break $expect_out(1,string)\n"
gdb_expect {
  -re "\[0-9\]*\[ \t\]*breakpoint.*:$bp_location1\r\n\[ \t\]*silent.*$gdb_prompt $"\
          {pass "info silent break bp_location1"}
  -re "$gdb_prompt $"\
          {fail "info silent break bp_location1"}
  timeout {fail "(timeout) info silent break bp_location1"}
}
send_gdb "continue\n"
gdb_expect {
  -re "Continuing.\r\n$gdb_prompt $"\
          {pass "hit silent break bp_location1"}
  -re "$gdb_prompt $"\
          {fail "hit silent break bp_location1"}
  timeout {fail "(timeout) hit silent break bp_location1"}
}
send_gdb "bt\n"
gdb_expect {
  -re "#0  main .* at .*:$bp_location1.*$gdb_prompt $"\
          {pass "stopped for silent break bp_location1"}
  -re "$gdb_prompt $"\
          {fail "stopped for silent break bp_location1"}
  timeout {fail "(timeout) stopped for silent break bp_location1"}
}

# Verify that GDB can at least parse a breakpoint with the
# "thread" keyword.  (We won't attempt to test here that a
# thread-specific breakpoint really triggers appropriately.
# The gdb.threads subdirectory contains tests for that.)
#
set bp_location12 [gdb_get_line_number "set breakpoint 12 here"]
send_gdb "break $bp_location12 thread 999\n"
gdb_expect {
  -re "Unknown thread 999.*$gdb_prompt $"\
          {pass "thread-specific breakpoint on non-existent thread disallowed"}
  -re "$gdb_prompt $"\
          {fail "thread-specific breakpoint on non-existent thread disallowed"}
  timeout {fail "(timeout) thread-specific breakpoint on non-existent thread disallowed"}
}
send_gdb "break $bp_location12 thread foo\n"
gdb_expect {
  -re "Junk after thread keyword..*$gdb_prompt $"\
          {pass "thread-specific breakpoint on bogus thread ID disallowed"}
  -re "$gdb_prompt $"\
          {fail "thread-specific breakpoint on bogus thread ID disallowed"}
  timeout {fail "(timeout) thread-specific breakpoint on bogus thread ID disallowed"}
}

# Verify that GDB responds gracefully to a breakpoint command with
# trailing garbage.
#
send_gdb "break $bp_location12 foo\n"
gdb_expect {
  -re "Junk at end of arguments..*$gdb_prompt $"\
          {pass "breakpoint with trailing garbage disallowed"}
  -re "$gdb_prompt $"\
          {fail "breakpoint with trailing garbage disallowed"}
  timeout {fail "(timeout) breakpoint with trailing garbage disallowed"}
}

# Verify that GDB responds gracefully to a "clear" command that has
# no matching breakpoint.  (First, get us off the current source line,
# which we know has a breakpoint.)
#
send_gdb "next\n"
gdb_expect {
  -re ".*$gdb_prompt $"\
          {pass "step over breakpoint"}
  timeout {fail "(timeout) step over breakpoint"}
}
send_gdb "clear 81\n"
gdb_expect {
  -re "No breakpoint at 81..*$gdb_prompt $"\
          {pass "clear line has no breakpoint disallowed"}
  -re "$gdb_prompt $"\
          {fail "clear line has no breakpoint disallowed"}
  timeout {fail "(timeout) clear line has no breakpoint disallowed"}
}
send_gdb "clear\n"
gdb_expect {
  -re "No breakpoint at this line..*$gdb_prompt $"\
          {pass "clear current line has no breakpoint disallowed"}
  -re "$gdb_prompt $"\
          {fail "clear current line has no breakpoint disallowed"}
  timeout {fail "(timeout) clear current line has no breakpoint disallowed"}
}

# Verify that we can set and clear multiple breakpoints.
#
# We don't test that it deletes the correct breakpoints.  We do at
# least test that it deletes more than one breakpoint.
#
gdb_test "break marker3" "Breakpoint.*at.*" "break marker3 #1"
gdb_test "break marker3" "Breakpoint.*at.*" "break marker3 #2"
gdb_test "clear marker3" {Deleted breakpoints [0-9]+ [0-9]+.*}

# Verify that a breakpoint can be set via a convenience variable.
#
send_gdb "set \$foo=$bp_location11\n"
gdb_expect {
  -re "$gdb_prompt $"\
          {pass "set convenience variable \$foo to bp_location11"}
  timeout {fail "(timeout) set convenience variable \$foo to bp_location11"}
}
send_gdb "break \$foo\n"
gdb_expect {
  -re "Breakpoint (\[0-9\]*) at .*, line $bp_location11.*$gdb_prompt $"\
          {pass "set breakpoint via convenience variable"}
  -re "$gdb_prompt $"\
          {fail "set breakpoint via convenience variable"}
  timeout {fail "(timeout) set breakpoint via convenience variable"}
}

# Verify that GDB responds gracefully to an attempt to set a
# breakpoint via a convenience variable whose type is not integer.
#
send_gdb "set \$foo=81.5\n"
gdb_expect {
  -re "$gdb_prompt $"\
          {pass "set convenience variable \$foo to 81.5"}
  timeout {fail "(timeout) set convenience variable \$foo to 81.5"}
}
send_gdb "break \$foo\n"
gdb_expect {
  -re "Convenience variables used in line specs must have integer values..*$gdb_prompt $"\
          {pass "set breakpoint via non-integer convenience variable disallowed"}
  -re "$gdb_prompt $"\
          {fail "set breakpoint via non-integer convenience variable disallowed"}
  timeout {fail "(timeout) set breakpoint via non-integer convenience variable disallowed"}
}

# Verify that we can set and trigger a breakpoint in a user-called function.
#
send_gdb "break marker2\n"
gdb_expect {
    -re "Breakpoint (\[0-9\]*) at .*, line ($bp_location8|$bp_location9).*$gdb_prompt $"\
          {pass "set breakpoint on to-be-called function"}
  -re "$gdb_prompt $"\
          {fail "set breakpoint on to-be-called function"}
  timeout {fail "(timeout) set breakpoint on to-be-called function"}
}
send_gdb "print marker2(99)\n"
gdb_expect {
  -re "The program being debugged stopped while in a function called from GDB.\r\nWhen the function .marker2$proto. is done executing, GDB will silently\r\nstop .instead of continuing to evaluate the expression containing\r\nthe function call...*$gdb_prompt $"\
          {pass "hit breakpoint on called function"}
  -re "$gdb_prompt $"\
          {fail "hit breakpoint on called function"}
  timeout {fail "(timeout) hit breakpoint on called function"}
}

# As long as we're stopped (breakpointed) in a called function,
# verify that we can successfully backtrace & such from here.
#
# In this and the following test, the _sr4export check apparently is needed
# for hppa*-*-hpux.
#
send_gdb "bt\n"
gdb_expect {
    -re "#0\[ \t\]*($hex in )?marker2.*:($bp_location8|$bp_location9)\r\n#1.*_sr4export.*$gdb_prompt $"\
            {pass "backtrace while in called function"}
    -re "#0\[ \t\]*($hex in )?marker2.*:($bp_location8|$bp_location9)\r\n#1.*function called from gdb.*$gdb_prompt $"\
	    {pass "backtrace while in called function"}
    -re "$gdb_prompt $"\
            {fail "backtrace while in called function"}
    timeout {fail "(timeout) backtrace while in called function"}
}

# Return from the called function.  For remote targets, it's important to do
# this before runto_main, which otherwise may silently stop on the dummy
# breakpoint inserted by GDB at the program's entry point.
#
send_gdb "finish\n"
gdb_expect {
    -re "Run till exit from .*marker2.* at .*($bp_location8|$bp_location9)\r\n.* in _sr4export.*$gdb_prompt $"\
            {pass "finish from called function"}
    -re "Run till exit from .*marker2.* at .*($bp_location8|$bp_location9)\r\n.*function called from gdb.*$gdb_prompt $"\
            {pass "finish from called function"}
    -re "Run till exit from .*marker2.* at .*($bp_location8|$bp_location9)\r\n.*Value returned.*$gdb_prompt $"\
            {pass "finish from called function"}
    -re "$gdb_prompt $"\
            {fail "finish from called function"}
    timeout {fail "(timeout) finish from called function"}
}

# Verify that GDB responds gracefully to a "finish" command with
# arguments.
#
if ![runto_main] then { fail "break tests suppressed" }

send_gdb "finish 123\n"
gdb_expect {
  -re "The \"finish\" command does not take any arguments.\r\n$gdb_prompt $"\
          {pass "finish with arguments disallowed"}
  -re "$gdb_prompt $"\
          {fail "finish with arguments disallowed"}
  timeout {fail "(timeout) finish with arguments disallowed"}
}

# Verify that GDB responds gracefully to a request to "finish" from
# the outermost frame.  On a stub that never exits, this will just
# run to the stubs routine, so we don't get this error...  Thus the 
# second condition.
#

send_gdb "finish\n"
gdb_expect {
  -re "\"finish\" not meaningful in the outermost frame.\r\n$gdb_prompt $"\
          {pass "finish from outermost frame disallowed"}
  -re "Run till exit from.*\r\n$gdb_prompt $" {
     pass "finish from outermost frame disallowed"
  }
  -re "$gdb_prompt $"\
          {fail "finish from outermost frame disallowed"}
  timeout {fail "(timeout) finish from outermost frame disallowed"}
}

# Verify that we can explicitly ask GDB to stop on all shared library
# events, and that it does so.
#
if [istarget "hppa*-*-hpux*"] then {
  if ![runto_main] then { fail "break tests suppressed" }

  send_gdb "set stop-on-solib-events 1\n"
  gdb_expect {
    -re "$gdb_prompt $"\
            {pass "set stop-on-solib-events"}
    timeout {fail "(timeout) set stop-on-solib-events"}
  }

  send_gdb "run\n"
  gdb_expect {
    -re ".*Start it from the beginning.*y or n. $"\
            {send_gdb "y\n"
             gdb_expect {
               -re ".*Stopped due to shared library event.*$gdb_prompt $"\
                       {pass "triggered stop-on-solib-events"}
               -re "$gdb_prompt $"\
                       {fail "triggered stop-on-solib-events"}
               timeout {fail "(timeout) triggered stop-on-solib-events"}
             }
            }
    -re "$gdb_prompt $"\
            {fail "rerun for stop-on-solib-events"}
    timeout {fail "(timeout) rerun for stop-on-solib-events"}
  }

  send_gdb "set stop-on-solib-events 0\n"
  gdb_expect {
    -re "$gdb_prompt $"\
            {pass "reset stop-on-solib-events"}
    timeout {fail "(timeout) reset stop-on-solib-events"}
  }
}

# Hardware breakpoints are unsupported on HP-UX.  Verify that GDB
# gracefully responds to requests to create them.
#
if [istarget "hppa*-*-hpux*"] then {
  if ![runto_main] then { fail "break tests suppressed" }

  send_gdb "hbreak\n"
  gdb_expect {
    -re "No hardware breakpoint support in the target.*$gdb_prompt $"\
            {pass "hw breaks disallowed"}
    -re "$gdb_prompt $"\
            {fail "hw breaks disallowed"}
    timeout {fail "(timeout) hw breaks disallowed"}
  }

  send_gdb "thbreak\n"
  gdb_expect {
    -re "No hardware breakpoint support in the target.*$gdb_prompt $"\
            {pass "temporary hw breaks disallowed"}
    -re "$gdb_prompt $"\
            {fail "temporary hw breaks disallowed"}
    timeout {fail "(timeout) temporary hw breaks disallowed"}
  }
}

#********


#
# Test "next" over recursive function call.
#

proc test_next_with_recursion {} { 
    global gdb_prompt
    global decimal
    global binfile

    gdb_test "kill" "" "kill program" "Kill the program being debugged.*y or n. $" "y"
    delete_breakpoints

    gdb_test "break factorial" "Breakpoint $decimal at .*" "break at factorial"

    # Run until we call factorial with 6

    gdb_run_cmd
    gdb_expect {
	-re "Break.* factorial .value=6. .*$gdb_prompt $" {}
	-re ".*$gdb_prompt $" {
	    fail "run to factorial(6)";
	    gdb_suppress_tests;
	}
	timeout { fail "run to factorial(6) (timeout)" ; gdb_suppress_tests }
    }

    # Continue until we call factorial recursively with 5.

    if [gdb_test "continue" \
	"Continuing.*Break.* factorial .value=5. .*" \
	"continue to factorial(5)"] then { gdb_suppress_tests }

    # Do a backtrace just to confirm how many levels deep we are.

    if [gdb_test "backtrace" \
	"#0\[ \t\]+ factorial .value=5..*" \
	"backtrace from factorial(5)"] then { gdb_suppress_tests }

    # Now a "next" should position us at the recursive call, which
    # we will be performing with 4.

    if [gdb_test "next" \
	".* factorial .value - 1.;.*" \
	"next to recursive call"] then { gdb_suppress_tests }

    # Disable the breakpoint at the entry to factorial by deleting them all.
    # The "next" should run until we return to the next line from this
    # recursive call to factorial with 4.
    # Buggy versions of gdb will stop instead at the innermost frame on
    # the line where we are trying to "next" to.

    delete_breakpoints

    if [istarget "mips*tx39-*"] {
	set timeout 60
    }
    # We used to set timeout here for all other targets as well.  This
    # is almost certainly wrong.  The proper timeout depends on the
    # target system in use, and how we communicate with it, so there
    # is no single value appropriate for all targets.  The timeout
    # should be established by the Dejagnu config file(s) for the
    # board, and respected by the test suite.
    #
    # For example, if I'm running GDB over an SSH tunnel talking to a
    # portmaster in California talking to an ancient 68k board running
    # a crummy ROM monitor (a situation I can only wish were
    # hypothetical), then I need a large timeout.  But that's not the
    # kind of knowledge that belongs in this file.

    gdb_test next "\[0-9\]*\[\t \]+return \\(value\\);.*" \
	    "next over recursive call"

    # OK, we should be back in the same stack frame we started from.
    # Do a backtrace just to confirm.

    set result [gdb_test "backtrace" \
	    "#0\[ \t\]+ factorial .value=120.*\r\n#1\[ \t\]+ \[0-9a-fx\]+ in factorial .value=6..*" \
	    "backtrace from factorial(5.1)"]
    if { $result != 0 } { gdb_suppress_tests }

    if [target_info exists gdb,noresults] { gdb_suppress_tests }
  gdb_continue_to_end "recursive next test"
   gdb_stop_suppressing_tests;
}

test_next_with_recursion


#********

# build a new file with optimization enabled so that we can try breakpoints
# on targets with optimized prologues

set binfileo2 ${objdir}/${subdir}/${testfile}o2

if  { [gdb_compile "${srcdir}/${subdir}/${srcfile}" "${binfile}O0.o" object {debug nowarnings optimize=-O2}] != "" } {
     untested break.exp
     return -1
}

if  { [gdb_compile "${srcdir}/${subdir}/${srcfile1}" "${binfile}O1.o" object {debug nowarnings optimize=-O2}] != "" } {
     untested break.exp
     return -1
}

if  { [gdb_compile "${binfile}O0.o ${binfile}O1.o" "${binfileo2}" executable {debug nowarnings}] != "" } {
     untested break.exp
     return -1
}

if [get_compiler_info ${binfileo2}] {
    return -1
}

gdb_exit
gdb_start
gdb_reinitialize_dir $srcdir/$subdir
gdb_load ${binfileo2}

if [target_info exists gdb_stub] {
    gdb_step_for_stub;
}

#
# test break at function
#
gdb_test "break main" \
    "Breakpoint.*at.* file .*, line.*" \
    "breakpoint function, optimized file"

#
# test break at function
#
gdb_test "break marker4" \
    "Breakpoint.*at.* file .*$srcfile1, line.*" \
    "breakpoint small function, optimized file"

#
# run until the breakpoint at main is hit. For non-stubs-using targets.
#
gdb_run_cmd
gdb_expect {
    -re "Breakpoint \[0-9\]+,.*main .*argc.*argv.* at .*$srcfile:$bp_location6.*$bp_location6\[\t \]+if .argc.* \{.*$gdb_prompt $" {
	pass "run until function breakpoint, optimized file"
    }
    -re "Breakpoint \[0-9\]+,.*main .*argc.*argv.* at .*$gdb_prompt $" {
	pass "run until function breakpoint, optimized file (code motion)"
    }
    -re "$gdb_prompt $" {
	fail "run until function breakpoint, optimized file"
    }
    timeout {
	fail "run until function breakpoint, optimized file (timeout)"
    }
}

#
# run until the breakpoint at a small function
#

#
# Add a second pass pattern.  The behavior differs here between stabs
# and dwarf for one-line functions.  Stabs preserves two line symbols
# (one before the prologue and one after) with the same line number, 
# but dwarf regards these as duplicates and discards one of them.
# Therefore the address after the prologue (where the breakpoint is)
# has no exactly matching line symbol, and GDB reports the breakpoint
# as if it were in the middle of a line rather than at the beginning.

set bp_location13 [gdb_get_line_number "set breakpoint 13 here" $srcfile1]
set bp_location14 [gdb_get_line_number "set breakpoint 14 here" $srcfile1]
send_gdb "continue\n"
gdb_expect {
    -re "Breakpoint $decimal, marker4 \\(d=177601976\\) at .*$srcfile1:$bp_location13\[\r\n\]+$bp_location13\[\t \]+void marker4.*" {
	pass "run until breakpoint set at small function, optimized file"
    }
    -re "Breakpoint $decimal, $hex in marker4 \\(d=177601976\\) at .*$srcfile1:$bp_location13\[\r\n\]+$bp_location13\[\t \]+void marker4.*" {
	pass "run until breakpoint set at small function, optimized file"
    }
    -re "Breakpoint $decimal, marker4 \\(d=177601976\\) at .*$srcfile1:$bp_location14\[\r\n\]+$bp_location14\[\t \]+void marker4.*" {
        # marker4() is defined at line 46 when compiled with -DPROTOTYPES
	pass "run until breakpoint set at small function, optimized file (line bp_location14)"
    }
    -re ".*$gdb_prompt " {
	fail "run until breakpoint set at small function, optimized file"
    }
    timeout {
	fail "run until breakpoint set at small function, optimized file (timeout)"
    }
}


# Reset the default arguments for VxWorks
if [istarget "*-*-vxworks*"] {
    set timeout 10
    verbose "Timeout is now $timeout seconds" 2
    send_gdb "set args main\n"
    gdb_expect -re ".*$gdb_prompt $" {}
}