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[/] [openrisc/] [tags/] [gnu-src/] [gdb-7.2/] [gdb-7.2-or32-1.0rc1/] [gdb/] [testsuite/] [gdb.base/] [break.exp] - Blame information for rev 341

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1 330 jeremybenn
#   Copyright 1988, 1990, 1991, 1992, 1994, 1995, 1996, 1997, 1998, 1999,
2
#   2000, 2002, 2003, 2007, 2008, 2009, 2010 Free Software Foundation, Inc.
3
 
4
# This program is free software; you can redistribute it and/or modify
5
# it under the terms of the GNU General Public License as published by
6
# the Free Software Foundation; either version 3 of the License, or
7
# (at your option) any later version.
8
#
9
# This program is distributed in the hope that it will be useful,
10
# but WITHOUT ANY WARRANTY; without even the implied warranty of
11
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
12
# GNU General Public License for more details.
13
#
14
# You should have received a copy of the GNU General Public License
15
# along with this program.  If not, see .
16
 
17
# This file was written by Rob Savoye. (rob@cygnus.com)
18
 
19
if { [prepare_for_testing break.exp "break" {break.c break1.c} {debug nowarnings}] } {
20
    return -1
21
}
22
set srcfile break.c
23
set srcfile1 break1.c
24
#
25
# test simple breakpoint setting commands
26
#
27
 
28
# Test deleting all breakpoints when there are none installed,
29
# GDB should not prompt for confirmation.
30
# Note that lib/gdb.exp provides a "delete_breakpoints" proc
31
# for general use elsewhere.
32
 
33
send_gdb "delete breakpoints\n"
34
gdb_expect {
35
     -re "Delete all breakpoints.*$" {
36
            send_gdb "y\n"
37
            gdb_expect {
38
                -re "$gdb_prompt $" {
39
                    fail "Delete all breakpoints when none (unexpected prompt)"
40
                }
41
                timeout { fail "Delete all breakpoints when none (timeout after unexpected prompt)" }
42
            }
43
        }
44
     -re ".*$gdb_prompt $"       { pass "Delete all breakpoints when none" }
45
    timeout                 { fail "Delete all breakpoints when none (timeout)" }
46
}
47
 
48
#
49
# test break at function
50
#
51
gdb_test "break main" \
52
    "Breakpoint.*at.* file .*$srcfile, line.*" \
53
    "breakpoint function"
54
 
55
#
56
# test break at quoted function
57
#
58
gdb_test "break \"marker2\"" \
59
    "Breakpoint.*at.* file .*$srcfile1, line.*" \
60
    "breakpoint quoted function"
61
 
62
#
63
# test break at function in file
64
#
65
gdb_test "break $srcfile:factorial" \
66
    "Breakpoint.*at.* file .*$srcfile, line.*" \
67
    "breakpoint function in file"
68
 
69
set bp_location1 [gdb_get_line_number "set breakpoint 1 here"]
70
 
71
#
72
# test break at line number
73
#
74
# Note that the default source file is the last one whose source text
75
# was printed.  For native debugging, before we've executed the
76
# program, this is the file containing main, but for remote debugging,
77
# it's wherever the processor was stopped when we connected to the
78
# board.  So, to be sure, we do a list command.
79
#
80
gdb_test "list main" \
81
    ".*main \\(argc, argv, envp\\).*" \
82
    "use `list' to establish default source file"
83
gdb_test "break $bp_location1" \
84
    "Breakpoint.*at.* file .*$srcfile, line $bp_location1\\." \
85
    "breakpoint line number"
86
 
87
#
88
# test duplicate breakpoint
89
#
90
gdb_test "break $bp_location1" \
91
    "Note: breakpoint \[0-9\]+ also set at pc.*Breakpoint \[0-9\]+ at.* file .*$srcfile, line $bp_location1\\." \
92
    "breakpoint duplicate"
93
 
94
set bp_location2 [gdb_get_line_number "set breakpoint 2 here"]
95
 
96
#
97
# test break at line number in file
98
#
99
gdb_test "break $srcfile:$bp_location2" \
100
    "Breakpoint.*at.* file .*$srcfile, line $bp_location2\\." \
101
    "breakpoint line number in file"
102
 
103
set bp_location3 [gdb_get_line_number "set breakpoint 3 here"]
104
set bp_location4 [gdb_get_line_number "set breakpoint 4 here"]
105
 
106
#
107
# Test putting a break at the start of a multi-line if conditional.
108
# Verify the breakpoint was put at the start of the conditional.
109
#
110
gdb_test "break multi_line_if_conditional" \
111
    "Breakpoint.*at.* file .*$srcfile, line $bp_location3\\." \
112
    "breakpoint at start of multi line if conditional"
113
 
114
gdb_test "break multi_line_while_conditional" \
115
    "Breakpoint.*at.* file .*$srcfile, line $bp_location4\\." \
116
    "breakpoint at start of multi line while conditional"
117
 
118
set bp_location5 [gdb_get_line_number "set breakpoint 5 here"]
119
set bp_location6 [gdb_get_line_number "set breakpoint 6 here"]
120
 
121
#
122
# check to see what breakpoints are set
123
#
124
if [target_info exists gdb_stub] {
125
    set main_line $bp_location5
126
} else {
127
    set main_line $bp_location6
128
}
129
 
130
if {$hp_aCC_compiler} {
131
    set proto "\\(int\\)"
132
} else {
133
    set proto ""
134
}
135
 
136
set bp_location7 [gdb_get_line_number "set breakpoint 7 here"]
137
set bp_location8 [gdb_get_line_number "set breakpoint 8 here" $srcfile1]
138
set bp_location9 [gdb_get_line_number "set breakpoint 9 here" $srcfile1]
139
 
140
gdb_test "info break" \
141
    "Num     Type\[ \]+Disp Enb Address\[ \]+What.*
142
\[0-9\]+\[\t \]+breakpoint     keep y.* in main at .*$srcfile:$main_line.*
143
\[0-9\]+\[\t \]+breakpoint     keep y.* in marker2 at .*$srcfile1:($bp_location8|$bp_location9).*
144
\[0-9\]+\[\t \]+breakpoint     keep y.* in factorial$proto at .*$srcfile:$bp_location7.*
145
\[0-9\]+\[\t \]+breakpoint     keep y.* in main at .*$srcfile:$bp_location1.*
146
\[0-9\]+\[\t \]+breakpoint     keep y.* in main at .*$srcfile:$bp_location1.*
147
\[0-9\]+\[\t \]+breakpoint     keep y.* in main at .*$srcfile:$bp_location2.*
148
\[0-9\]+\[\t \]+breakpoint     keep y.* in multi_line_if_conditional at .*$srcfile:$bp_location3.*
149
\[0-9\]+\[\t \]+breakpoint     keep y.* in multi_line_while_conditional at .*$srcfile:$bp_location4" \
150
    "breakpoint info"
151
 
152
# FIXME: The rest of this test doesn't work with anything that can't
153
# handle arguments.
154
# Huh? There doesn't *appear* to be anything that passes arguments
155
# below.
156
if [istarget "mips-idt-*"] then {
157
    return
158
}
159
 
160
#
161
# run until the breakpoint at main is hit. For non-stubs-using targets.
162
#
163
gdb_run_cmd
164
gdb_expect {
165
    -re "Breakpoint \[0-9\]+,.*main .*argc.*argv.* at .*$srcfile:$bp_location6.*$bp_location6\[\t \]+if .argc.* \{.*$gdb_prompt $" {
166
        pass "run until function breakpoint"
167
    }
168
    -re "$gdb_prompt $" {
169
        fail "run until function breakpoint"
170
    }
171
    timeout {
172
        fail "run until function breakpoint (timeout)"
173
    }
174
}
175
 
176
#
177
# run until the breakpoint at a line number
178
#
179
gdb_test continue "Continuing\\..*Breakpoint \[0-9\]+, main \\(argc=.*, argv=.*, envp=.*\\) at .*$srcfile:$bp_location1.*$bp_location1\[\t \]+printf.*factorial.*" \
180
                        "run until breakpoint set at a line number"
181
 
182
#
183
# Run until the breakpoint set in a function in a file
184
#
185
for {set i 6} {$i >= 1} {incr i -1} {
186
        gdb_test continue "Continuing\\..*Breakpoint \[0-9\]+, factorial \\(value=$i\\) at .*$srcfile:$bp_location7.*$bp_location7\[\t \]+.*if .value > 1. \{.*" \
187
                        "run until file:function($i) breakpoint"
188
}
189
 
190
#
191
# Run until the breakpoint set at a quoted function
192
#
193
gdb_test continue "Continuing\\..*Breakpoint \[0-9\]+, (0x\[0-9a-f\]+ in )?marker2 \\(a=43\\) at .*$srcfile1:($bp_location8|$bp_location9).*" \
194
                "run until quoted breakpoint"
195
#
196
# run until the file:function breakpoint at a line number in a file
197
#
198
gdb_test continue "Continuing\\..*Breakpoint \[0-9\]+, main \\(argc=.*, argv=.*, envp=.*\\) at .*$srcfile:$bp_location2.*$bp_location2\[\t \]+argc = \\(argc == 12345\\);.*" \
199
                "run until file:linenum breakpoint"
200
 
201
# Test break at offset +1
202
set bp_location10 [gdb_get_line_number "set breakpoint 10 here"]
203
 
204
gdb_test "break +1" \
205
    "Breakpoint.*at.* file .*$srcfile, line $bp_location10\\." \
206
    "breakpoint offset +1"
207
 
208
# Check to see if breakpoint is hit when stepped onto
209
 
210
gdb_test "step" \
211
    ".*Breakpoint \[0-9\]+, main \\(argc=.*, argv=.*, envp=.*\\) at .*$srcfile:$bp_location10.*$bp_location10\[\t \]+return argc;.*breakpoint 10 here.*" \
212
    "step onto breakpoint"
213
 
214
# Check to see if breakpoint can be set on ending brace of function
215
set bp_location10a [gdb_get_line_number "set breakpoint 10a here"]
216
 
217
gdb_test "break $bp_location10a" \
218
    "Breakpoint.*at.* file .*$srcfile, line $bp_location10a\\." \
219
    "setting breakpoint at }"
220
 
221
gdb_test "continue" \
222
    ".*Breakpoint \[0-9\]+, main \\(argc=.*, argv=.*, envp=.*\\) at .*$srcfile:$bp_location10a.*$bp_location10a\[\t \]+}.*breakpoint 10a here.*" \
223
    "continue to breakpoint at }"
224
 
225
#
226
# delete all breakpoints so we can start over, course this can be a test too
227
#
228
delete_breakpoints
229
 
230
#
231
# test temporary breakpoint at function
232
#
233
 
234
gdb_test "tbreak main" "Temporary breakpoint.*at.* file .*$srcfile, line.*" "Temporary breakpoint function"
235
 
236
#
237
# test break at function in file
238
#
239
 
240
gdb_test "tbreak $srcfile:factorial" "Temporary breakpoint.*at.* file .*$srcfile, line.*" \
241
        "Temporary breakpoint function in file"
242
 
243
#
244
# test break at line number
245
#
246
gdb_test "tbreak $bp_location1" \
247
    "Temporary breakpoint.*at.* file .*$srcfile, line $bp_location1.*" \
248
    "Temporary breakpoint line number #1"
249
 
250
gdb_test "tbreak $bp_location6" "Temporary breakpoint.*at.* file .*$srcfile, line $bp_location6.*" "Temporary breakpoint line number #2"
251
 
252
#
253
# test break at line number in file
254
#
255
gdb_test "tbreak $srcfile:$bp_location2" \
256
    "Temporary breakpoint.*at.* file .*$srcfile, line $bp_location2.*" \
257
    "Temporary breakpoint line number in file #1"
258
 
259
set bp_location11 [gdb_get_line_number "set breakpoint 11 here"]
260
gdb_test  "tbreak $srcfile:$bp_location11" "Temporary breakpoint.*at.* file .*$srcfile, line $bp_location11.*" "Temporary breakpoint line number in file #2"
261
 
262
#
263
# check to see what breakpoints are set (temporary this time)
264
#
265
gdb_test "info break" "Num     Type.*Disp Enb Address.*What.*\[\r\n\]
266
\[0-9\]+\[\t \]+breakpoint     del.*y.*in main at .*$srcfile:$main_line.*\[\r\n\]
267
\[0-9\]+\[\t \]+breakpoint     del.*y.*in factorial$proto at .*$srcfile:$bp_location7.*\[\r\n\]
268
\[0-9\]+\[\t \]+breakpoint     del.*y.*in main at .*$srcfile:$bp_location1.*\[\r\n\]
269
\[0-9\]+\[\t \]+breakpoint     del.*y.*in main at .*$srcfile:$bp_location6.*\[\r\n\]
270
\[0-9\]+\[\t \]+breakpoint     del.*y.*in main at .*$srcfile:$bp_location2.*\[\r\n\]
271
\[0-9\]+\[\t \]+breakpoint     del.*y.*in main at .*$srcfile:$bp_location11.*" \
272
    "Temporary breakpoint info"
273
 
274
 
275
#***********
276
 
277
# Verify that catchpoints for fork, vfork and exec don't trigger
278
# inappropriately.  (There are no calls to those system functions
279
# in this test program.)
280
#
281
if ![runto_main] then { fail "break tests suppressed" }
282
 
283
gdb_test "catch" \
284
    "Catch requires an event name." \
285
    "catch requires an event name"
286
 
287
 
288
set name "set catch fork, never expected to trigger"
289
gdb_test_multiple "catch fork" "$name" {
290
    -re "Catchpoint \[0-9\]* .fork..*$gdb_prompt $" {
291
        pass $name
292
    }
293
    -re "Catch of fork not yet implemented.*$gdb_prompt $" {
294
        pass $name
295
    }
296
}
297
 
298
 
299
# If we are on HP-UX 10.20, we expect an error message to be
300
# printed if we type "catch vfork" at the gdb gdb_prompt.  This is
301
# because on HP-UX 10.20, we cannot catch vfork events.
302
 
303
set name "set catch vfork, never expected to trigger"
304
 
305
if [istarget "hppa*-hp-hpux10.20"] then {
306
    gdb_test "catch vfork" \
307
        "Catch of vfork events not supported on HP-UX 10.20..*" \
308
        "$name"
309
} else {
310
    gdb_test_multiple "catch vfork" "$name" {
311
        -re "Catchpoint \[0-9\]* .vfork..*$gdb_prompt $" {
312
            pass $name
313
        }
314
        -re "Catch of vfork not yet implemented.*$gdb_prompt $" {
315
            pass $name
316
        }
317
    }
318
}
319
 
320
set name "set catch exec, never expected to trigger"
321
gdb_test_multiple "catch exec" "$name" {
322
    -re "Catchpoint \[0-9\]* .exec..*$gdb_prompt $" {
323
        pass $name
324
    }
325
    -re "Catch of exec not yet implemented.*$gdb_prompt $" {
326
        pass $name
327
    }
328
}
329
 
330
# Verify that GDB responds gracefully when asked to set a breakpoint
331
# on a nonexistent source line.
332
#
333
gdb_test "break 999" \
334
    "No line 999 in file .*" \
335
    "break on non-existent source line"
336
 
337
# Run to the desired default location. If not positioned here, the
338
# tests below don't work.
339
#
340
gdb_test "until $bp_location1" "main .* at .*:$bp_location1.*" \
341
    "until bp_location1"
342
 
343
# Verify that GDB allows one to just say "break", which is treated
344
# as the "default" breakpoint.  Note that GDB gets cute when printing
345
# the informational message about other breakpoints at the same
346
# location.  We'll hit that bird with this stone too.
347
#
348
gdb_test "break" "Breakpoint \[0-9\]*.*" \
349
    "break on default location, 1st time"
350
 
351
gdb_test "break" \
352
    "Note: breakpoint \[0-9\]* also set at .*Breakpoint \[0-9\]*.*" \
353
    "break on default location, 2nd time"
354
 
355
gdb_test "break" \
356
    "Note: breakpoints \[0-9\]* and \[0-9\]* also set at .*Breakpoint \[0-9\]*.*" \
357
    "break on default location, 3rd time"
358
 
359
gdb_test "break" \
360
    "Note: breakpoints \[0-9\]*, \[0-9\]* and \[0-9\]* also set at .*Breakpoint \[0-9\]*.*" \
361
    "break on default location, 4th time"
362
 
363
# Verify that a "silent" breakpoint can be set, and that GDB is indeed
364
# "silent" about its triggering.
365
#
366
if ![runto_main] then { fail "break tests suppressed" }
367
 
368
gdb_test_multiple "break $bp_location1" \
369
    "set to-be-silent break bp_location1" {
370
        -re "Breakpoint (\[0-9\]*) at .*, line $bp_location1.*$gdb_prompt $" {
371
            pass "set to-be-silent break bp_location1"
372
        }
373
    }
374
 
375
send_gdb "commands $expect_out(1,string)\n"
376
send_gdb "silent\n"
377
send_gdb "end\n"
378
gdb_expect {
379
  -re ".*$gdb_prompt $"\
380
          {pass "set silent break bp_location1"}
381
  timeout {fail "(timeout) set silent break bp_location1"}
382
}
383
 
384
gdb_test "info break $expect_out(1,string)" \
385
    "\[0-9\]*\[ \t\]*breakpoint.*:$bp_location1\r\n\[ \t\]*silent.*" \
386
    "info silent break bp_location1"
387
 
388
gdb_test "continue" "Continuing." \
389
    "hit silent break bp_location1"
390
 
391
gdb_test "bt" "#0  main .* at .*:$bp_location1.*" \
392
    "stopped for silent break bp_location1"
393
 
394
# Verify that GDB can at least parse a breakpoint with the
395
# "thread" keyword.  (We won't attempt to test here that a
396
# thread-specific breakpoint really triggers appropriately.
397
# The gdb.threads subdirectory contains tests for that.)
398
#
399
set bp_location12 [gdb_get_line_number "set breakpoint 12 here"]
400
gdb_test "break $bp_location12 thread 999" "Unknown thread 999.*" \
401
    "thread-specific breakpoint on non-existent thread disallowed"
402
 
403
gdb_test "break $bp_location12 thread foo" \
404
    "Junk after thread keyword.*" \
405
    "thread-specific breakpoint on bogus thread ID disallowed"
406
 
407
# Verify that GDB responds gracefully to a breakpoint command with
408
# trailing garbage.
409
#
410
gdb_test "break $bp_location12 foo" \
411
    "Junk at end of arguments.*" \
412
    "breakpoint with trailing garbage disallowed"
413
 
414
# Verify that GDB responds gracefully to a "clear" command that has
415
# no matching breakpoint.  (First, get us off the current source line,
416
# which we know has a breakpoint.)
417
#
418
gdb_test "next" "marker1.*" "step over breakpoint"
419
 
420
gdb_test "clear 81" "No breakpoint at 81.*" \
421
    "clear line has no breakpoint disallowed"
422
 
423
gdb_test "clear" "No breakpoint at this line.*" \
424
    "clear current line has no breakpoint disallowed"
425
 
426
# Verify that we can set and clear multiple breakpoints.
427
#
428
# We don't test that it deletes the correct breakpoints.  We do at
429
# least test that it deletes more than one breakpoint.
430
#
431
gdb_test "break marker3" "Breakpoint.*at.*" "break marker3 #1"
432
gdb_test "break marker3" "Breakpoint.*at.*" "break marker3 #2"
433
gdb_test "clear marker3" {Deleted breakpoints [0-9]+ [0-9]+.*}
434
 
435
# Verify that a breakpoint can be set via a convenience variable.
436
#
437
gdb_test_no_output "set \$foo=$bp_location11" \
438
    "set convenience variable \$foo to bp_location11"
439
 
440
gdb_test "break \$foo" \
441
    "Breakpoint (\[0-9\]*) at .*, line $bp_location11.*" \
442
    "set breakpoint via convenience variable"
443
 
444
# Verify that GDB responds gracefully to an attempt to set a
445
# breakpoint via a convenience variable whose type is not integer.
446
#
447
gdb_test_no_output "set \$foo=81.5" \
448
    "set convenience variable \$foo to 81.5"
449
 
450
gdb_test "break \$foo" \
451
    "Convenience variables used in line specs must have integer values.*" \
452
    "set breakpoint via non-integer convenience variable disallowed"
453
 
454
# Verify that we can set and trigger a breakpoint in a user-called function.
455
#
456
gdb_test "break marker2" \
457
    "Breakpoint (\[0-9\]*) at .*, line ($bp_location8|$bp_location9).*" \
458
    "set breakpoint on to-be-called function"
459
 
460
gdb_test "print marker2(99)" \
461
    "The program being debugged stopped while in a function called from GDB.\r\nEvaluation of the expression containing the function\r\n.marker2$proto. will be abandoned.\r\nWhen the function is done executing, GDB will silently stop.*" \
462
    "hit breakpoint on called function"
463
 
464
# As long as we're stopped (breakpointed) in a called function,
465
# verify that we can successfully backtrace & such from here.
466
#
467
# In this and the following test, the _sr4export check apparently is needed
468
# for hppa*-*-hpux.
469
#
470
gdb_test_multiple "bt" "backtrace while in called function" {
471
    -re "#0\[ \t\]*($hex in )?marker2.*:($bp_location8|$bp_location9)\r\n#1.*_sr4export.*$gdb_prompt $" {
472
        pass "backtrace while in called function"
473
    }
474
    -re "#0\[ \t\]*($hex in )?marker2.*:($bp_location8|$bp_location9)\r\n#1.*function called from gdb.*$gdb_prompt $" {
475
        pass "backtrace while in called function"
476
    }
477
}
478
 
479
# Return from the called function.  For remote targets, it's important to do
480
# this before runto_main, which otherwise may silently stop on the dummy
481
# breakpoint inserted by GDB at the program's entry point.
482
#
483
gdb_test_multiple "finish" "finish from called function" {
484
    -re "Run till exit from .*marker2.* at .*($bp_location8|$bp_location9)\r\n.* in _sr4export.*$gdb_prompt $" {
485
        pass "finish from called function"
486
    }
487
    -re "Run till exit from .*marker2.* at .*($bp_location8|$bp_location9)\r\n.*function called from gdb.*$gdb_prompt $" {
488
        pass "finish from called function"
489
    }
490
    -re "Run till exit from .*marker2.* at .*($bp_location8|$bp_location9)\r\n.*Value returned.*$gdb_prompt $" {
491
        pass "finish from called function"
492
    }
493
}
494
 
495
# Verify that GDB responds gracefully to a "finish" command with
496
# arguments.
497
#
498
if ![runto_main] then { fail "break tests suppressed" }
499
 
500
send_gdb "finish 123\n"
501
gdb_expect {
502
  -re "The \"finish\" command does not take any arguments.\r\n$gdb_prompt $"\
503
          {pass "finish with arguments disallowed"}
504
  -re "$gdb_prompt $"\
505
          {fail "finish with arguments disallowed"}
506
  timeout {fail "(timeout) finish with arguments disallowed"}
507
}
508
 
509
# Verify that GDB responds gracefully to a request to "finish" from
510
# the outermost frame.  On a stub that never exits, this will just
511
# run to the stubs routine, so we don't get this error...  Thus the
512
# second condition.
513
#
514
 
515
gdb_test_multiple "finish" "finish from outermost frame disallowed" {
516
    -re "\"finish\" not meaningful in the outermost frame.\r\n$gdb_prompt $" {
517
        pass "finish from outermost frame disallowed"
518
    }
519
    -re "Run till exit from.*\r\n$gdb_prompt $" {
520
        pass "finish from outermost frame disallowed"
521
    }
522
}
523
 
524
# Verify that we can explicitly ask GDB to stop on all shared library
525
# events, and that it does so.
526
#
527
if [istarget "hppa*-*-hpux*"] then {
528
    if ![runto_main] then { fail "break tests suppressed" }
529
 
530
    gdb_test_no_output "set stop-on-solib-events 1" \
531
        "set stop-on-solib-events"
532
 
533
    gdb_test "run" \
534
        "Stopped due to shared library event.*" \
535
        "triggered stop-on-solib-events" \
536
        "Start it from the beginning.*y or n. $" \
537
        "y"
538
 
539
    gdb_test_no_output "set stop-on-solib-events 0" \
540
        "reset stop-on-solib-events"
541
}
542
 
543
# Hardware breakpoints are unsupported on HP-UX.  Verify that GDB
544
# gracefully responds to requests to create them.
545
#
546
if [istarget "hppa*-*-hpux*"] then {
547
    if ![runto_main] then { fail "break tests suppressed" }
548
 
549
    gdb_test "hbreak" \
550
        "No hardware breakpoint support in the target.*" \
551
        "hw breaks disallowed"
552
 
553
    gdb_test "thbreak" \
554
        "No hardware breakpoint support in the target.*" \
555
        "temporary hw breaks disallowed"
556
}
557
 
558
#********
559
 
560
 
561
#
562
# Test "next" over recursive function call.
563
#
564
 
565
proc test_next_with_recursion {} {
566
    global gdb_prompt
567
    global decimal
568
    global binfile
569
 
570
    gdb_test "kill" "" "kill program" "Kill the program being debugged.*y or n. $" "y"
571
    delete_breakpoints
572
 
573
    gdb_test "break factorial" "Breakpoint $decimal at .*" "break at factorial"
574
 
575
    # Run until we call factorial with 6
576
 
577
    gdb_run_cmd
578
    gdb_expect {
579
        -re "Break.* factorial .value=6. .*$gdb_prompt $" {}
580
        -re ".*$gdb_prompt $" {
581
            fail "run to factorial(6)";
582
            gdb_suppress_tests;
583
        }
584
        timeout { fail "run to factorial(6) (timeout)" ; gdb_suppress_tests }
585
    }
586
 
587
    # Continue until we call factorial recursively with 5.
588
 
589
    if [gdb_test "continue" \
590
        "Continuing.*Break.* factorial .value=5. .*" \
591
        "continue to factorial(5)"] then { gdb_suppress_tests }
592
 
593
    # Do a backtrace just to confirm how many levels deep we are.
594
 
595
    if [gdb_test "backtrace" \
596
        "#0\[ \t\]+ factorial .value=5..*" \
597
        "backtrace from factorial(5)"] then { gdb_suppress_tests }
598
 
599
    # Now a "next" should position us at the recursive call, which
600
    # we will be performing with 4.
601
 
602
    if [gdb_test "next" \
603
        ".* factorial .value - 1.;.*" \
604
        "next to recursive call"] then { gdb_suppress_tests }
605
 
606
    # Disable the breakpoint at the entry to factorial by deleting them all.
607
    # The "next" should run until we return to the next line from this
608
    # recursive call to factorial with 4.
609
    # Buggy versions of gdb will stop instead at the innermost frame on
610
    # the line where we are trying to "next" to.
611
 
612
    delete_breakpoints
613
 
614
    if [istarget "mips*tx39-*"] {
615
        set timeout 60
616
    }
617
    # We used to set timeout here for all other targets as well.  This
618
    # is almost certainly wrong.  The proper timeout depends on the
619
    # target system in use, and how we communicate with it, so there
620
    # is no single value appropriate for all targets.  The timeout
621
    # should be established by the Dejagnu config file(s) for the
622
    # board, and respected by the test suite.
623
    #
624
    # For example, if I'm running GDB over an SSH tunnel talking to a
625
    # portmaster in California talking to an ancient 68k board running
626
    # a crummy ROM monitor (a situation I can only wish were
627
    # hypothetical), then I need a large timeout.  But that's not the
628
    # kind of knowledge that belongs in this file.
629
 
630
    gdb_test next "\[0-9\]*\[\t \]+return \\(value\\);.*" \
631
            "next over recursive call"
632
 
633
    # OK, we should be back in the same stack frame we started from.
634
    # Do a backtrace just to confirm.
635
 
636
    set result [gdb_test "backtrace" \
637
            "#0\[ \t\]+ factorial .value=120.*\r\n#1\[ \t\]+ \[0-9a-fx\]+ in factorial .value=6..*" \
638
            "backtrace from factorial(5.1)"]
639
    if { $result != 0 } { gdb_suppress_tests }
640
 
641
    if [target_info exists gdb,noresults] { gdb_suppress_tests }
642
  gdb_continue_to_end "recursive next test"
643
   gdb_stop_suppressing_tests;
644
}
645
 
646
test_next_with_recursion
647
 
648
 
649
#********
650
 
651
# build a new file with optimization enabled so that we can try breakpoints
652
# on targets with optimized prologues
653
 
654
if { [prepare_for_testing break.exp "breako2" {break.c break1.c} {debug nowarnings optimize=-O2}] } {
655
    return -1
656
}
657
 
658
#
659
# test break at function
660
#
661
gdb_test "break main" \
662
    "Breakpoint.*at.* file .*, line.*" \
663
    "breakpoint function, optimized file"
664
 
665
#
666
# test break at function
667
#
668
gdb_test "break marker4" \
669
    "Breakpoint.*at.* file .*$srcfile1, line.*" \
670
    "breakpoint small function, optimized file"
671
 
672
#
673
# run until the breakpoint at main is hit. For non-stubs-using targets.
674
#
675
gdb_run_cmd
676
gdb_expect {
677
    -re "Breakpoint \[0-9\]+,.*main .*argc.*argv.* at .*$srcfile:$bp_location6.*$bp_location6\[\t \]+if .argc.* \{.*$gdb_prompt $" {
678
        pass "run until function breakpoint, optimized file"
679
    }
680
    -re "Breakpoint \[0-9\]+,.*main .*argc.*argv.* at .*$gdb_prompt $" {
681
        pass "run until function breakpoint, optimized file (code motion)"
682
    }
683
    -re "$gdb_prompt $" {
684
        fail "run until function breakpoint, optimized file"
685
    }
686
    timeout {
687
        fail "run until function breakpoint, optimized file (timeout)"
688
    }
689
}
690
 
691
#
692
# run until the breakpoint at a small function
693
#
694
 
695
#
696
# Add a second pass pattern.  The behavior differs here between stabs
697
# and dwarf for one-line functions.  Stabs preserves two line symbols
698
# (one before the prologue and one after) with the same line number,
699
# but dwarf regards these as duplicates and discards one of them.
700
# Therefore the address after the prologue (where the breakpoint is)
701
# has no exactly matching line symbol, and GDB reports the breakpoint
702
# as if it were in the middle of a line rather than at the beginning.
703
 
704
set bp_location13 [gdb_get_line_number "set breakpoint 13 here" $srcfile1]
705
set bp_location14 [gdb_get_line_number "set breakpoint 14 here" $srcfile1]
706
 
707
gdb_test_multiple "continue" \
708
    "run until breakpoint set at small function, optimized file" {
709
        -re "Breakpoint $decimal, marker4 \\(d=177601976\\) at .*$srcfile1:$bp_location13\[\r\n\]+$bp_location13\[\t \]+void marker4.*" {
710
            pass "run until breakpoint set at small function, optimized file"
711
        }
712
        -re "Breakpoint $decimal, $hex in marker4 \\(d=177601976\\) at .*$srcfile1:$bp_location13\[\r\n\]+$bp_location13\[\t \]+void marker4.*" {
713
            pass "run until breakpoint set at small function, optimized file"
714
        }
715
        -re "Breakpoint $decimal, marker4 \\(d=177601976\\) at .*$srcfile1:$bp_location14\[\r\n\]+$bp_location14\[\t \]+void marker4.*" {
716
            # marker4() is defined at line 46 when compiled with -DPROTOTYPES
717
            pass "run until breakpoint set at small function, optimized file (line bp_location14)"
718
        }
719
        -re "Breakpoint $decimal, factorial \\(.*\\) .*\{\r\n$gdb_prompt" {
720
            # GCC 4.3 emits bad line number information - see gcc/36748.
721
            if { [test_compiler_info "gcc-4-3-*"] } {
722
                setup_xfail *-*-*
723
            }
724
            fail "run until breakpoint set at small function, optimized file"
725
        }
726
    }
727
 
728
clean_restart breako2
729
 
730
#
731
# test that 'rbreak' on a symbol that may be from a shared library doesn't
732
# cause a "Junk at end of arguments." error.
733
#
734
# On x86 GNU/Linux, this test will choke on e.g. __libc_start_main@plt.
735
#
736
# Note that this test won't necessarily choke on all targets even if
737
# all the rbreak issue is present.  rbreak needs to match and set a
738
# breakpoint on a symbol causes 'break' to choke.
739
#
740
 
741
gdb_test_no_output "set breakpoint pending on" "rbreak junk pending setup"
742
 
743
# We expect at least one breakpoint to be set when we "rbreak main".
744
gdb_test "rbreak main" \
745
    ".*Breakpoint.*at.* file .*$srcfile, line.*" \
746
    "rbreak junk set breakpoint"
747
 
748
# Run to a breakpoint.  Fail if we see "Junk at end of arguments".
749
gdb_run_cmd
750
gdb_expect {
751
    -re "Junk at end of arguments" {
752
        fail "rbreak junk"
753
    }
754
    -re ".*Breakpoint \[0-9\]+,.*$gdb_prompt $" {
755
        pass "rbreak junk"
756
    }
757
    timeout {
758
        fail "rbreak junk (timeout)"
759
    }
760
}
761
 
762
 
763
# Reset the default arguments for VxWorks
764
if [istarget "*-*-vxworks*"] {
765
    set timeout 10
766
    verbose "Timeout is now $timeout seconds" 2
767
    gdb_test_no_output "set args main"
768
}

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