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6aba47ca 1# Copyright 1998, 1999, 2000, 2007 Free Software Foundation, Inc.
c906108c
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2
3# This program is free software; you can redistribute it and/or modify
4# it under the terms of the GNU General Public License as published by
e22f8b7c 5# the Free Software Foundation; either version 3 of the License, or
c906108c 6# (at your option) any later version.
e22f8b7c 7#
c906108c
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8# This program is distributed in the hope that it will be useful,
9# but WITHOUT ANY WARRANTY; without even the implied warranty of
10# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
11# GNU General Public License for more details.
e22f8b7c 12#
c906108c 13# You should have received a copy of the GNU General Public License
e22f8b7c 14# along with this program. If not, see <http://www.gnu.org/licenses/>.
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15
16# Please email any bugs, comments, and/or additions to this file to:
17# bug-gdb@prep.ai.mit.edu
18
19# This file was written by Elena Zannoni (ezannoni@cygnus.com)
20
21# This file is part of the gdb testsuite
22#
23# tests for pointer arithmetic and pointer dereferencing
24# with integer type variables and pointers to integers
25#
26
27if $tracelevel then {
28 strace $tracelevel
29 }
30
31#
32# test running programs
33#
34set prms_id 0
35set bug_id 0
36
37set testfile "pointers"
38set srcfile ${testfile}.c
39set binfile ${objdir}/${subdir}/${testfile}
40
fc91c6c2 41if { [gdb_compile "${srcdir}/${subdir}/${srcfile}" "${binfile}" executable {debug nowarnings}] != "" } {
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42 untested pointers.exp
43 return -1
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44 }
45
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46if [get_compiler_info ${binfile}] {
47 return -1;
48}
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49
50gdb_exit
51gdb_start
52gdb_reinitialize_dir $srcdir/$subdir
53gdb_load ${binfile}
54
55
56#
57# set it up at a breakpoint so we can play with the variable values
58#
59
60if ![runto_main] then {
61 perror "couldn't run to breakpoint"
62 continue
63}
64
a0b3c4fd 65gdb_test "next " "more_code.*;" "continuing after dummy()"
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66
67
68#
69# let's see if gdb catches some illegal operations on pointers
70#
71# I must comment these out because strict type checking is not
72# supported in this version of GDB. I do not really know
73# what the expected gdb reply is.
74#
75
76#send_gdb "print v_int_pointer2 = &v_int_pointer\n"
77#gdb_expect {
78# -re ".*.*$gdb_prompt $" {
79# pass "illegal pointer assignment rejected"
80# }
81# -re ".*$gdb_prompt $" { fail "illegal pointer assignment rejected" }
82# timeout { fail "(timeout) illegal pointer assignment rejected" }
83# }
84
85
86#send_gdb "print v_unsigned_int_pointer = &v_int\n"
87#gdb_expect {
88# -re ".*.*$gdb_prompt $" {
89# pass "illegal pointer assignment rejected"
90# }
91# -re ".*$gdb_prompt $" { fail "illegal pointer assignment rejected" }
92# timeout { fail "(timeout) ilegal pointer assignment rejected" }
93# }
94
95#send_gdb "print v_unsigned_int_pointer == v_double_pointer\n"
96#gdb_expect {
97# -re ".*.*$gdb_prompt $" {
98# pass "illegal pointer operation (+) rejected"
99# }
100# -re ".*$gdb_prompt $" { fail "illegal pointer operation (+) rejected" }
101# timeout { fail "(timeout) illegal pointer operation (+) rejected" }
102# }
103
104
105#send_gdb "print v_unsigned_int_pointer * v_double_pointer\n"
106#gdb_expect {
107# -re ".*Argument to arithmetic operation not a number or boolean.*$gdb_prompt $" {
108# pass "illegal pointer operation (*) rejected"
109# }
110# -re ".*$gdb_prompt $" { fail "illegal pointer operation (*) rejected" }
111# timeout { fail "(timeout) illegal pointer operation (*) rejected" }
112# }
113
114
115#send_gdb "print v_unsigned_int_pointer = v_double_pointer\n"
116#gdb_expect {
117# -re ".*.*$gdb_prompt $" {
118# pass "ilegal pointer assignment rejected"
119# }
120# -re ".*$gdb_prompt $" { fail "illegal pointer assignment rejected" }
121# timeout { fail "(timeout) illegal pointer assignment rejected" }
122# }
123
124
125#send_gdb "print v_unsigned_int_pointer = v_unsigned_int\n"
126#gdb_expect {
127# -re ".*.*$gdb_prompt $" {
128# pass "illegal pointer assignment rejected"
129# }
130# -re ".*$gdb_prompt $" { fail "illegal pointer assignment rejected" }
131# timeout { fail "(timeout) illegal pointer assignment rejected" }
132# }
133
134gdb_test "set variable v_int_pointer=&v_int_array\[0\]" "" "set pointer to beginning of array"
135gdb_test "set variable v_int_pointer2=&v_int_array\[1\]" "" "set pointer to end of array"
136
137
138send_gdb "print *v_int_pointer\n"
139gdb_expect {
140 -re ".*= 6.*$gdb_prompt $" {
141 pass "print object pointed to"
142 }
143 -re ".*$gdb_prompt $" { fail "print object pointed to" }
144 timeout { fail "(timeout) print object pointed to" }
145 }
146
147send_gdb "print *v_int_pointer2\n"
148gdb_expect {
149 -re ".*= 18.*$gdb_prompt $" {
150 pass "print object pointed to"
151 }
152 -re ".*$gdb_prompt $" { fail "print object pointed to" }
153 timeout { fail "(timeout) print object pointed to" }
154 }
155
156
157send_gdb "print v_int_pointer == v_int_pointer2\n"
158gdb_expect {
085dd6e6 159 -re ".*= $false.*$gdb_prompt $" {
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160 pass "pointer1==pointer2"
161 }
162 -re ".*$gdb_prompt $" { fail "pointer1==pointer2" }
163 timeout { fail "(timeout) pointer1==pointer2" }
164 }
165
166send_gdb "print v_int_pointer != v_int_pointer2\n"
167gdb_expect {
085dd6e6 168 -re ".*= $true.*$gdb_prompt $" {
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169 pass "pointer1!=pointer2"
170 }
171 -re ".*$gdb_prompt $" { fail "pointer1!=pointer2" }
172 timeout { fail "(timeout) pointer1!=pointer2" }
173 }
174
175
176send_gdb "print v_int_pointer <= v_int_pointer2\n"
177gdb_expect {
085dd6e6 178 -re ".*= $true.*$gdb_prompt $" {
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179 pass "pointer1<=pointer2"
180 }
181 -re ".*$gdb_prompt $" { fail "pointer1<=pointer2" }
182 timeout { fail "(timeout) pointer1<=pointer2" }
183 }
184
185
186send_gdb "print v_int_pointer >= v_int_pointer2\n"
187gdb_expect {
085dd6e6 188 -re ".*= $false.*$gdb_prompt $" {
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189 pass "pointer1>=pointer2"
190 }
191 -re ".*$gdb_prompt $" { fail "pointer1>=pointer2" }
192 timeout { fail "(timeout) pointer1>=pointer2" }
193 }
194
195
196send_gdb "print v_int_pointer < v_int_pointer2\n"
197gdb_expect {
085dd6e6 198 -re ".*= $true.*$gdb_prompt $" {
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199 pass "pointer1<pointer2"
200 }
201 -re ".*$gdb_prompt $" { fail "pointer1<pointer2" }
202 timeout { fail "(timeout) pointer1<pointer2" }
203 }
204
205send_gdb "print v_int_pointer > v_int_pointer2\n"
206gdb_expect {
085dd6e6 207 -re ".*= $false.*$gdb_prompt $" {
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208 pass "pointer1>pointer2"
209 }
210 -re ".*$gdb_prompt $" { fail "pointer1>pointer2" }
211 timeout { fail "(timeout) pointer1>pointer2" }
212 }
213
214
215gdb_test "set variable y = *v_int_pointer++" "" "set y = *v_int_pointer++"
216send_gdb "print y\n"
217gdb_expect {
218 -re ".*= 6.*$gdb_prompt $" {
219 send_gdb "print *v_int_pointer\n"
220 gdb_expect {
221 -re ".*= 18.*$gdb_prompt $" {
222 pass "pointer assignment and increment"
223 }
224 -re ".*$gdb_prompt $" { fail "pointer assignment and increment" }
225 timeout { fail "(timeout) pointer assignment and increment" }
226 }
227 }
228 -re ".*$gdb_prompt $" { fail "pointer assignment and increment" }
229 timeout { fail "(timeout) pointer assignment and increment" }
230 }
231
232
233
234
235gdb_test "set variable y = *--v_int_pointer2" "" "set y = *--v_int_pointer2"
236send_gdb "print y\n"
237gdb_expect {
238 -re ".*= 6.*$gdb_prompt $" {
239 send_gdb "print *v_int_pointer2\n"
240 gdb_expect {
241 -re ".*= 6.*$gdb_prompt $" {
242 pass "pointer decrement and assignment"
243 }
244 -re ".*$gdb_prompt $" { fail "pointer decrement and assignment" }
245 timeout { fail "(timeout) pointer decrement and assignment" }
246 }
247 }
248 -re ".*$gdb_prompt $" { fail "pointer decrement and assignment" }
249 timeout { fail "(timeout) pointer decrement and assignment" }
250 }
251
252gdb_test "set variable y =v_int_pointer-v_int_pointer2" "" "set y =v_int_pointer-v_int_pointer2"
253send_gdb "print y\n"
254gdb_expect {
255 -re ".*= 1.*$gdb_prompt $" {
256 pass "pointer1-pointer2"
257 }
258 -re ".*$gdb_prompt $" { fail "pointer1-pointer2" }
259 timeout { fail "(timeout) pointer1-pointer2" }
260 }
261
262gdb_test "set variable v_int_pointer=v_int_array" "" "set v_int_pointer=v_int_array"
263send_gdb "print *v_int_pointer\n"
264gdb_expect {
265 -re ".*= 6.*$gdb_prompt $" {
266 pass "print array element through pointer"
267 }
268 -re ".*$gdb_prompt $" { fail "print array element through pointer" }
269 timeout { fail "(timeout) print array element through pointer" }
270 }
271
272
273send_gdb "print *(v_int_pointer+1)\n"
274gdb_expect {
275 -re ".*= 18.*$gdb_prompt $" {
276 pass "print array element through pointer"
277 }
278 -re ".*$gdb_prompt $" { fail "print array element through pointer" }
279 timeout { fail "(timeout) print array element through pointer" }
280 }
281
282# test print elements of array through pointers
283
284send_gdb "print (*rptr)\[0\]\n"
285gdb_expect {
286 -re ".*= 0.*$gdb_prompt $" {
287 pass "print array element through pointer"
288 }
289 -re ".*$gdb_prompt $" { fail "print array element through pointer" }
290 timeout { fail "(timeout) print array element through pointer" }
291 }
292
293send_gdb "print (*rptr)\[1\]\n"
294gdb_expect {
295 -re ".*= 1.*$gdb_prompt $" {
296 pass "print array element through pointer"
297 }
298 -re ".*$gdb_prompt $" { fail "print array element through pointer" }
299 timeout { fail "(timeout) print array element through pointer" }
300 }
301
302
303send_gdb "print (*rptr)\[2\]\n"
304gdb_expect {
305 -re ".*= 2.*$gdb_prompt $" {
306 pass "print array element through pointer"
307 }
308 -re ".*$gdb_prompt $" { fail "print array element through pointer" }
309 timeout { fail "(timeout) print array element through pointer" }
310 }
311
312gdb_test "set variable rptr = rptr+1" "" "increment rptr"
313
314send_gdb "print (*rptr)\[0\]\n"
315gdb_expect {
316 -re ".*= 3.*$gdb_prompt $" {
317 pass "print array element through pointer"
318 }
319 -re ".*$gdb_prompt $" { fail "print array element through pointer" }
320 timeout { fail "(timeout) print array element through pointer" }
321 }
322
323
324send_gdb "print (*rptr)\[1\]\n"
325gdb_expect {
326 -re ".*= 4.*$gdb_prompt $" {
327 pass "print array element through pointer"
328 }
329 -re ".*$gdb_prompt $" { fail "print array element through pointer" }
330 timeout { fail "(timeout) print array element through pointer" }
331 }
332
333
334send_gdb "print (*rptr)\[2\]\n"
335gdb_expect {
336 -re ".*= 5.*$gdb_prompt $" {
337 pass "print array element through pointer"
338 }
339 -re ".*$gdb_prompt $" { fail "print array element through pointer" }
340 timeout { fail "(timeout) print array element through pointer" }
341 }
342
343
344send_gdb "print *( *(matrix+1) +2)\n"
345gdb_expect {
346 -re ".*= 5.*$gdb_prompt $" {
347 pass "print array element w/ pointer arithmetic"
348 }
349 -re ".*$gdb_prompt $" { fail "print array element w/ pointer arithemtic" }
350 timeout { fail "(timeout) print array element w/ pointer arithmetic" }
351 }
352
353
354send_gdb "print **ptr_to_ptr_to_float\n"
355gdb_expect {
356 -re ".*= 100.*$gdb_prompt $" {
357 pass "print through ptr to ptr"
358 }
359 -re ".*$gdb_prompt $" { fail "print through ptr to ptr" }
360 timeout { fail "(timeout) print through ptr to ptr" }
361 }
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362
363# tests for pointers
364# with elementary type variables and pointers.
365#
366
367send_gdb "break marker1\n" ; gdb_expect -re ".*$gdb_prompt $"
368
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AC
369send_gdb "cont\n"
370gdb_expect {
371 -re "Break.* marker1 \\(\\) at .*:$decimal.*$gdb_prompt $" {
372 pass "continue to marker1"
373 send_gdb "up\n"
374 gdb_expect {
375 -re ".*more_code.*$gdb_prompt $" {
376 pass "up from marker1"
377 }
378 -re ".*$gdb_prompt $" {
379 fail "up from marker1"
380 }
381 timeout { fail "up from marker1 (timeout)" }
382 }
383 }
384 -re "$gdb_prompt $" {
385 fail "continue to marker1"
adf40b2e 386 }
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AC
387 timeout {
388 fail "continue to marker1 (timeout)"
389 }
390}
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JM
391
392
393send_gdb "print *pUC\n"
394gdb_expect {
395 -re ".\[0-9\]* = 21 \'.025\'.*$gdb_prompt $" {
396 pass "print value of *pUC"
397 }
398 -re ".*$gdb_prompt $" { fail "print value of *pUC" }
399 timeout { fail "(timeout) print value of *pUC" }
400 }
401
402
403send_gdb "ptype pUC\n"
404gdb_expect {
405 -re "type = unsigned char \\*.*$gdb_prompt $" { pass "ptype pUC" }
406 -re ".*$gdb_prompt $" { fail "ptype pUC" }
407 timeout { fail "(timeout) ptype pUC" }
408}
409
410send_gdb "print *pS\n"
411gdb_expect {
412 -re ".\[0-9\]* = -14.*$gdb_prompt $" {
413 pass "print value of *pS"
414 }
415 -re ".*$gdb_prompt $" { fail "print value of *pS" }
416 timeout { fail "(timeout) print value of *pS" }
417 }
418
419
420send_gdb "ptype pS\n"
421gdb_expect {
422 -re "type = short \\*.*$gdb_prompt $" { pass "ptype pS" }
423 -re "type = short int \\*.*$gdb_prompt $" { pass "ptype pS" }
424 -re ".*$gdb_prompt $" { fail "ptype pS" }
425 timeout { fail "(timeout) ptype pS" }
426}
427
428send_gdb "print *pUS\n"
429gdb_expect {
430 -re ".\[0-9\]* = 7.*$gdb_prompt $" {
431 pass "print value of *pUS"
432 }
433 -re ".*$gdb_prompt $" { fail "print value of *pUS" }
434 timeout { fail "(timeout) print value of *pUS" }
435 }
436
437
438send_gdb "ptype pUS\n"
439gdb_expect {
440 -re "type = unsigned short \\*.*$gdb_prompt $" { pass "ptype pUS" }
441 -re "type = short unsigned int \\*.*$gdb_prompt $" { pass "ptype pUS" }
442 -re ".*$gdb_prompt $" { fail "ptype pUS" }
443 timeout { fail "(timeout) ptype pUS" }
444}
445
446send_gdb "print *pI\n"
447gdb_expect {
448 -re ".\[0-9\]* = 102.*$gdb_prompt $" {
449 pass "print value of *pI"
450 }
451 -re ".*$gdb_prompt $" { fail "print value of *pI" }
452 timeout { fail "(timeout) print value of *pI" }
453 }
454
455
456send_gdb "ptype pI\n"
457gdb_expect {
458 -re "type = int \\*.*$gdb_prompt $" { pass "ptype pI" }
459 -re ".*$gdb_prompt $" { fail "ptype pI" }
460 timeout { fail "(timeout) ptype pI" }
461}
462
463send_gdb "print *pUI\n"
464gdb_expect {
465 -re ".\[0-9\]* = 1002.*$gdb_prompt $" {
466 pass "print value of *pUI"
467 }
468 -re ".*$gdb_prompt $" { fail "print value of *pUI" }
469 timeout { fail "(timeout) print value of *pUI" }
470 }
471
472
473send_gdb "ptype pUI\n"
474gdb_expect {
475 -re "type = unsigned int \\*.*$gdb_prompt $" { pass "ptype pUI" }
476 -re ".*$gdb_prompt $" { fail "ptype pUI" }
477 timeout { fail "(timeout) ptype pUI" }
478}
479
480send_gdb "print *pL\n"
481gdb_expect {
482 -re ".\[0-9\]* = -234.*$gdb_prompt $" {
483 pass "print value of *pL"
484 }
485 -re ".*$gdb_prompt $" { fail "print value of *pL" }
486 timeout { fail "(timeout) print value of *pL" }
487 }
488
489
490send_gdb "ptype pL\n"
491gdb_expect {
492 -re "type = long \\*.*$gdb_prompt $" { pass "ptype pL" }
493 -re "type = long int \\*.*$gdb_prompt $" { pass "ptype pL" }
494 -re ".*$gdb_prompt $" { fail "ptype pL" }
495 timeout { fail "(timeout) ptype pL" }
496}
497
498send_gdb "print *pUL\n"
499gdb_expect {
500 -re ".\[0-9\]* = 234.*$gdb_prompt $" {
501 pass "print value of *pUL"
502 }
503 -re ".*$gdb_prompt $" { fail "print value of *pUL" }
504 timeout { fail "(timeout) print value of *pUL" }
505 }
506
507
508send_gdb "ptype pUL\n"
509gdb_expect {
510 -re "type = unsigned long \\*.*$gdb_prompt $" { pass "ptype pUL" }
511 -re "type = long unsigned int \\*.*$gdb_prompt $" { pass "ptype pUL" }
512 -re ".*$gdb_prompt $" { fail "ptype pUL" }
513 timeout { fail "(timeout) ptype pUL" }
514}
515
516send_gdb "print *pF\n"
517gdb_expect {
518 -re ".\[0-9\]* = 1.2\[0-9\]*e\\+10.*$gdb_prompt $" {
519 pass "print value of *pF"
520 }
521 -re ".*$gdb_prompt $" { fail "print value of *pF" }
522 timeout { fail "(timeout) print value of *pF" }
523 }
524
525
526send_gdb "ptype pF\n"
527gdb_expect {
528 -re "type = float \\*.*$gdb_prompt $" { pass "ptype pF" }
529 -re ".*$gdb_prompt $" { fail "ptype pF" }
530 timeout { fail "(timeout) ptype pF" }
531}
532
533send_gdb "print *pD\n"
534gdb_expect {
1b3c5540 535 -re ".\[0-9\]* = -1.2\[0-9\]*e\\-37.*$gdb_prompt $" {
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536 pass "print value of *pD"
537 }
538 -re ".*$gdb_prompt $" { fail "print value of *pD" }
539 timeout { fail "(timeout) print value of *pD" }
540 }
541
542
543send_gdb "ptype pD\n"
544gdb_expect {
545 -re "type = double \\*.*$gdb_prompt $" { pass "ptype pD" }
546 -re ".*$gdb_prompt $" { fail "ptype pD" }
547 timeout { fail "(timeout) ptype pD" }
548}
549
550send_gdb "print ******ppppppC\n"
551gdb_expect {
552 -re ".\[0-9\]* = 65 \'A\'.*$gdb_prompt $" {
553 pass "print value of ******ppppppC"
554 }
555 -re ".*$gdb_prompt $" { fail "print value of ******ppppppC" }
556 timeout { fail "(timeout) print value of ******ppppppC" }
557 }
558
559
560send_gdb "ptype pC\n"
561gdb_expect {
562 -re "type = char \\*.*$gdb_prompt $" { pass "ptype pC" }
563 -re ".*$gdb_prompt $" { fail "ptype pC" }
564 timeout { fail "(timeout) ptype pC" }
565}
566
567send_gdb "ptype ppC\n"
568gdb_expect {
569 -re "type = char \\*\\*.*$gdb_prompt $" { pass "ptype ppC" }
570 -re ".*$gdb_prompt $" { fail "ptype ppC" }
571 timeout { fail "(timeout) ptype ppC" }
572}
573
574send_gdb "ptype pppC\n"
575gdb_expect {
ed4c619a 576 -re "type = char \\*\\*\\*.*$gdb_prompt $" { pass "ptype pppC" }
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JM
577 -re ".*$gdb_prompt $" { fail "ptype pppC" }
578 timeout { fail "(timeout) ptype pppC" }
579}
580
581send_gdb "ptype ppppC\n"
582gdb_expect {
583 -re "type = char \\*\\*\\*\\*.*$gdb_prompt $" { pass "ptype ppppC" }
584 -re ".*$gdb_prompt $" { fail "ptype ppppC" }
585 timeout { fail "(timeout) ptype ppppC" }
586}
587
588send_gdb "ptype pppppC\n"
589gdb_expect {
590 -re "type = char \\*\\*\\*\\*\\*.*$gdb_prompt $" { pass "ptype pppppC" }
591 -re ".*$gdb_prompt $" { fail "ptype pppppC" }
592 timeout { fail "(timeout) ptype pppppC" }
593}
594
595send_gdb "ptype ppppppC\n"
596gdb_expect {
597 -re "type = char \\*\\*\\*\\*\\*\\*.*$gdb_prompt $" { pass "ptype ppppppC" }
598 -re ".*$gdb_prompt $" { fail "ptype ppppppC" }
599 timeout { fail "(timeout) ptype ppppppC" }
600}
601