* gdb.arch/i386-prologue.exp (skip_breakpoint): Fix setup_kfail
[deliverable/binutils-gdb.git] / gdb / testsuite / gdb.base / callfuncs.exp
1 # Copyright 1992, 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003,
2 # 2004, 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 <http://www.gnu.org/licenses/>.
16
17 # This file was written by Fred Fish. (fnf@cygnus.com)
18 # and modified by Bob Manson. (manson@cygnus.com)
19
20 if $tracelevel then {
21 strace $tracelevel
22 }
23
24
25 set testfile "callfuncs"
26 set srcfile ${testfile}.c
27 set binfile ${objdir}/${subdir}/${testfile}
28
29 if { [gdb_compile "${srcdir}/${subdir}/${srcfile}" "${binfile}" executable {debug}] != "" } {
30 untested callfuncs.exp
31 return -1
32 }
33
34 # Create and source the file that provides information about the compiler
35 # used to compile the test case.
36
37 if [get_compiler_info ${binfile}] {
38 return -1;
39 }
40
41 if {$hp_aCC_compiler} {
42 set prototypes 1
43 } else {
44 set prototypes 0
45 }
46
47 # Some targets can't do function calls, so don't even bother with this
48 # test.
49 if [target_info exists gdb,cannot_call_functions] {
50 setup_xfail "*-*-*" 2416
51 fail "This target can not call functions"
52 continue
53 }
54
55 # Set the current language to C. This counts as a test. If it
56 # fails, then we skip the other tests.
57
58 proc set_lang_c {} {
59 global gdb_prompt
60
61 gdb_test_no_output "set language c"
62
63 set success 0
64
65 gdb_test_multiple "show language" "set language to \"c\"" {
66 -re ".* source language is \"c\".*$gdb_prompt $" {
67 pass "set language to \"c\""
68 set success 1
69 }
70 }
71 return $success
72 }
73
74 # FIXME: Before calling this proc, we should probably verify that
75 # we can call inferior functions and get a valid integral value
76 # returned.
77 # Note that it is OK to check for 0 or 1 as the returned values, because C
78 # specifies that the numeric value of a relational or logical expression
79 # (computed in the inferior) is 1 for true and 0 for false.
80
81 proc do_function_calls {} {
82 global prototypes
83 global gdb_prompt
84
85 # We need to up this because this can be really slow on some boards.
86 set timeout 60;
87
88 gdb_test "p t_char_values(0,0)" " = 0"
89 gdb_test "p t_char_values('a','b')" " = 1"
90 gdb_test "p t_char_values(char_val1,char_val2)" " = 1"
91 gdb_test "p t_char_values('a',char_val2)" " = 1"
92 gdb_test "p t_char_values(char_val1,'b')" " = 1"
93
94 gdb_test "p t_short_values(0,0)" " = 0"
95 gdb_test "p t_short_values(10,-23)" " = 1"
96 gdb_test "p t_short_values(short_val1,short_val2)" " = 1"
97 gdb_test "p t_short_values(10,short_val2)" " = 1"
98 gdb_test "p t_short_values(short_val1,-23)" " = 1"
99
100 gdb_test "p t_int_values(0,0)" " = 0"
101 gdb_test "p t_int_values(87,-26)" " = 1"
102 gdb_test "p t_int_values(int_val1,int_val2)" " = 1"
103 gdb_test "p t_int_values(87,int_val2)" " = 1"
104 gdb_test "p t_int_values(int_val1,-26)" " = 1"
105
106 gdb_test "p t_long_values(0,0)" " = 0"
107 gdb_test "p t_long_values(789,-321)" " = 1"
108 gdb_test "p t_long_values(long_val1,long_val2)" " = 1"
109 gdb_test "p t_long_values(789,long_val2)" " = 1"
110 gdb_test "p t_long_values(long_val1,-321)" " = 1"
111
112 if ![target_info exists gdb,skip_float_tests] {
113 gdb_test "p t_float_values(0.0,0.0)" " = 0"
114
115 # These next four tests fail on the mn10300.
116 # The first value is passed in regs, the other in memory.
117 # Gcc emits different stabs for the two parameters; the first is
118 # claimed to be a float, the second a double.
119 # dbxout.c in gcc claims this is the desired behavior.
120 # These tests also fail for RealView, because GDB can not tell that
121 # the function is unprototyped.
122 setup_xfail "mn10300-*-*"
123 if { [test_compiler_info "armcc-*"] } { setup_xfail "*-*-*" }
124 gdb_test "p t_float_values(3.14159,-2.3765)" " = 1"
125 setup_xfail "mn10300-*-*"
126 if { [test_compiler_info "armcc-*"] } { setup_xfail "*-*-*" }
127 gdb_test "p t_float_values(float_val1,float_val2)" " = 1"
128 setup_xfail "mn10300-*-*"
129 if { [test_compiler_info "armcc-*"] } { setup_xfail "*-*-*" }
130 gdb_test "p t_float_values(3.14159,float_val2)" " = 1"
131 setup_xfail "mn10300-*-*"
132 if { [test_compiler_info "armcc-*"] } { setup_xfail "*-*-*" }
133 gdb_test "p t_float_values(float_val1,-2.3765)" " = 1"
134
135 # Test passing of arguments which might not be widened.
136 gdb_test "p t_float_values2(0.0,0.0)" " = 0"
137
138 # Although PR 5318 mentions SunOS specifically, this seems
139 # to be a generic problem on quite a few platforms.
140 if $prototypes then {
141 setup_xfail "sparc-*-*" "mips*-*-*" 5318
142 if { ! [test_compiler_info gcc-*-*] } then {
143 setup_xfail "alpha-dec-osf2*" "i*86-*-sysv4*" 5318
144 }
145 }
146
147 gdb_test "p t_float_values2(3.14159,float_val2)" " = 1"
148
149 gdb_test "p t_float_many_args (float_val1, float_val2, float_val3, float_val4, float_val5, float_val6, float_val7, float_val8, float_val9, float_val10, float_val11, float_val12, float_val13, float_val14, float_val15)" " = 1" "Call function with many float arguments."
150
151 gdb_test "p t_small_values(1,2,3,4,5,6,7,8,9,10)" " = 55"
152
153 gdb_test "p t_double_values(0.0,0.0)" " = 0"
154 gdb_test "p t_double_values(45.654,-67.66)" " = 1"
155 gdb_test "p t_double_values(double_val1,double_val2)" " = 1"
156 gdb_test "p t_double_values(45.654,double_val2)" " = 1"
157 gdb_test "p t_double_values(double_val1,-67.66)" " = 1"
158
159 gdb_test "p t_double_many_args (double_val1, double_val2, double_val3, double_val4, double_val5, double_val6, double_val7, double_val8, double_val9, double_val10, double_val11, double_val12, double_val13, double_val14, double_val15)" " = 1" "Call function with many double arguments."
160
161 gdb_test "p t_double_int(99.0, 1)" " = 0"
162 gdb_test "p t_double_int(99.0, 99)" " = 1"
163 gdb_test "p t_int_double(99, 1.0)" " = 0"
164 gdb_test "p t_int_double(99, 99.0)" " = 1"
165 }
166
167 gdb_test "p t_string_values(string_val2,string_val1)" " = 0"
168 gdb_test "p t_string_values(string_val1,string_val2)" " = 1"
169 gdb_test "p t_string_values(\"string 1\",\"string 2\")" " = 1"
170 gdb_test "p t_string_values(\"string 1\",string_val2)" " = 1"
171 gdb_test "p t_string_values(string_val1,\"string 2\")" " = 1"
172
173 gdb_test "p t_char_array_values(char_array_val2,char_array_val1)" " = 0"
174 gdb_test "p t_char_array_values(char_array_val1,char_array_val2)" " = 1"
175 gdb_test "p t_char_array_values(\"carray 1\",\"carray 2\")" " = 1"
176 gdb_test "p t_char_array_values(\"carray 1\",char_array_val2)" " = 1"
177 gdb_test "p t_char_array_values(char_array_val1,\"carray 2\")" " = 1"
178
179 gdb_test "p doubleit(4)" " = 8"
180 gdb_test "p add(4,5)" " = 9"
181 gdb_test "p t_func_values(func_val2,func_val1)" " = 0"
182 gdb_test "p t_func_values(func_val1,func_val2)" " = 1"
183
184 gdb_test "p function_struct.func(5)" " = 10"
185 gdb_test "p function_struct_ptr->func(10)" " = 20"
186
187 # GDB currently screws up the passing of function parameters for
188 # ABIs that use function descriptors. Instead of passing the
189 # address of te function descriptor, GDB passes the address of the
190 # function body. This results in the called function treating the
191 # first few instructions of the function proper as a descriptor
192 # and attempting a jump through that (a totally random address).
193 setup_kfail gdb/1457 "rs6000*-*-aix*"
194 setup_kfail gdb/1457 "powerpc*-*-aix*"
195 setup_kfail gdb/1457 hppa*-*-hpux*
196 gdb_test "p t_func_values(add,func_val2)" " = 1"
197 setup_kfail gdb/1457 "rs6000*-*-aix*"
198 setup_kfail gdb/1457 "powerpc*-*-aix*"
199 setup_kfail gdb/1457 hppa*-*-hpux*
200 gdb_test "p t_func_values(func_val1,doubleit)" " = 1"
201 setup_kfail gdb/1457 "rs6000*-*-aix*"
202 setup_kfail gdb/1457 "powerpc*-*-aix*"
203 setup_kfail gdb/1457 hppa*-*-hpux*
204 gdb_test "p t_call_add(add,3,4)" " = 7"
205 gdb_test "p t_call_add(func_val1,3,4)" " = 7"
206
207 gdb_test "p t_enum_value1(enumval1)" " = 1"
208 gdb_test "p t_enum_value1(enum_val1)" " = 1"
209 gdb_test "p t_enum_value1(enum_val2)" " = 0"
210
211 gdb_test "p t_enum_value2(enumval2)" " = 1"
212 gdb_test "p t_enum_value2(enum_val2)" " = 1"
213 gdb_test "p t_enum_value2(enum_val1)" " = 0"
214
215 gdb_test "p sum_args(1,{2})" " = 2"
216 gdb_test "p sum_args(2,{2,3})" " = 5"
217 gdb_test "p sum_args(3,{2,3,4})" " = 9"
218 gdb_test "p sum_args(4,{2,3,4,5})" " = 14"
219
220 gdb_test "p sum10 (1, 2, 3, 4, 5, 6, 7, 8, 9, 10)" " = 55"
221
222 gdb_test "p cmp10 (0, 1, 2, 3, 4, 5, 6, 7, 8, 9)" " = 1"
223
224 gdb_test "p t_structs_c(struct_val1)" "= 120 'x'" \
225 "call inferior func with struct - returns char"
226 gdb_test "p t_structs_s(struct_val1)" "= 87" \
227 "call inferior func with struct - returns short"
228 gdb_test "p t_structs_i(struct_val1)" "= 76" \
229 "call inferior func with struct - returns int"
230 gdb_test "p t_structs_l(struct_val1)" "= 51" \
231 "call inferior func with struct - returns long"
232 gdb_test "p t_structs_f(struct_val1)" "= 2.12.*" \
233 "call inferior func with struct - returns float"
234 gdb_test "p t_structs_d(struct_val1)" "= 9.87.*" \
235 "call inferior func with struct - returns double"
236 gdb_test "p t_structs_a(struct_val1)" "= (.unsigned char .. )?\"foo\"" \
237 "call inferior func with struct - returns char *"
238 }
239
240 # Procedure to get current content of all registers.
241 proc fetch_all_registers {test} {
242 global gdb_prompt
243
244 set all_registers_lines {}
245 set bad -1
246 # Former trailing `\[\r\n\]+' may eat just \r leaving \n in the buffer
247 # corrupting the next matches.
248 if {[gdb_test_multiple "info all-registers" $test {
249 -re "info all-registers\r\n" {
250 exp_continue
251 }
252 -ex "The program has no registers now" {
253 set bad 1
254 exp_continue
255 }
256 -re "^bspstore\[ \t\]+\[^\r\n\]+\r\n" {
257 if [istarget "ia64-*-*"] {
258 # Filter out bspstore which is specially tied to bsp,
259 # giving spurious differences.
260 } else {
261 lappend all_registers_lines $expect_out(0,string)
262 }
263 exp_continue
264 }
265 -re "^\[^ \t\]+\[ \t\]+\[^\r\n\]+\r\n" {
266 lappend all_registers_lines $expect_out(0,string)
267 exp_continue
268 }
269 -re "$gdb_prompt $" {
270 incr bad
271 }
272 -re "^\[^\r\n\]+\r\n" {
273 if {!$bad} {
274 warning "Unrecognized output: $expect_out(0,string)"
275 set bad 1
276 }
277 exp_continue
278 }
279 }] != 0} {
280 return {}
281 }
282
283 if {$bad} {
284 fail $test
285 return {}
286 }
287
288 pass $test
289 return $all_registers_lines
290 }
291
292
293 # Start with a fresh gdb.
294
295 gdb_exit
296 gdb_start
297 gdb_reinitialize_dir $srcdir/$subdir
298 gdb_load ${binfile}
299
300 gdb_test "set print sevenbit-strings" ""
301 gdb_test "set print address off" ""
302 gdb_test "set width 0" ""
303
304 if { $hp_aCC_compiler } {
305 # Do not set language explicitly to 'C'. This will cause aCC
306 # tests to fail because promotion rules are different. Just let
307 # the language be set to the default.
308
309 if { ![runto_main] } {
310 gdb_suppress_tests;
311 }
312
313 # However, turn off overload-resolution for aCC. Having it on causes
314 # a lot of failures.
315
316 gdb_test "set overload-resolution 0" ".*"
317 } else {
318 if { ![set_lang_c] } {
319 gdb_suppress_tests;
320 } else {
321 if { ![runto_main] } {
322 gdb_suppress_tests;
323 }
324 }
325 }
326
327 get_debug_format
328
329 # Make sure that malloc gets called and that the floating point unit
330 # is initialized via a call to t_double_values.
331 gdb_test "next" "t_double_values\\(double_val1, double_val2\\);.*" \
332 "next to t_double_values"
333 gdb_test "next" "t_structs_c\\(struct_val1\\);.*" \
334 "next to t_structs_c"
335
336 # Save all register contents.
337 set old_reg_content [fetch_all_registers "retrieve original register contents"]
338
339 # Perform function calls.
340 do_function_calls
341
342 # Check if all registers still have the same value.
343 set new_reg_content [fetch_all_registers \
344 "register contents after gdb function calls"]
345 if {$old_reg_content == $new_reg_content} then {
346 pass "gdb function calls preserve register contents"
347 } else {
348 set old_reg_content $new_reg_content
349 fail "gdb function calls preserve register contents"
350 }
351
352 # Set breakpoint at a function we will call from gdb.
353 gdb_breakpoint add
354
355 # Call function (causing a breakpoint hit in the call dummy) and do a continue,
356 # make sure we are back at main and still have the same register contents.
357 gdb_test "print add(4,5)" \
358 "The program being debugged stopped while.*" \
359 "stop at breakpoint in call dummy function"
360 gdb_test "continue" "Continuing.*" "continue from call dummy breakpoint"
361 if ![gdb_test "bt 2" \
362 "#0 main.*" \
363 "bt after continuing from call dummy breakpoint"] then {
364 set new_reg_content [fetch_all_registers \
365 "register contents after stop in call dummy"]
366 if {$old_reg_content == $new_reg_content} then {
367 pass "continue after stop in call dummy preserves register contents"
368 } else {
369 fail "continue after stop in call dummy preserves register contents"
370 }
371 }
372
373 # Call function (causing a breakpoint hit in the call dummy) and do a finish,
374 # make sure we are back at main and still have the same register contents.
375 gdb_test "print add(4,5)" "The program being debugged stopped while.*" \
376 "call function causing a breakpoint then do a finish"
377 gdb_test "finish" \
378 "Value returned is .* = 9" \
379 "finish from call dummy breakpoint returns correct value"
380 if ![gdb_test "bt 2" \
381 "#0 main.*" \
382 "bt after finishing from call dummy breakpoint"] then {
383 set new_reg_content [fetch_all_registers \
384 "register contents after finish in call dummy"]
385 if {$old_reg_content == $new_reg_content} then {
386 pass "finish after stop in call dummy preserves register contents"
387 } else {
388 fail "finish after stop in call dummy preserves register contents"
389 }
390 }
391
392 # Call function (causing a breakpoint hit in the call dummy) and do a return
393 # with a value, make sure we are back at main with the same register contents.
394 gdb_test "print add(4,5)" "The program being debugged stopped while.*" \
395 "call function causing a breakpoint and then do a return"
396 if ![gdb_test "return 7" \
397 "#0 main.*" \
398 "back at main after return from call dummy breakpoint" \
399 "Make add return now. .y or n.*" \
400 "y"] then {
401 set new_reg_content [fetch_all_registers \
402 "register contents after return in call dummy"]
403 if {$old_reg_content == $new_reg_content} then {
404 pass "return after stop in call dummy preserves register contents"
405 } else {
406 fail "return after stop in call dummy preserves register contents"
407 }
408 }
409
410 # Call function (causing a breakpoint hit in the call dummy), and
411 # call another function from the call dummy frame (thereby setting up
412 # several nested call dummy frames). Test that backtrace and finish
413 # work when several call dummies are nested.
414 gdb_breakpoint sum10
415 gdb_breakpoint t_small_values
416 gdb_test "print add(2,3)" "The program being debugged stopped while.*" \
417 "stop at nested call level 1"
418 gdb_test "backtrace" \
419 "\#0 add \\(a=2, b=3\\).*\#1 <function called from gdb>.*\#2 main.*" \
420 "backtrace at nested call level 1"
421 gdb_test "print add(4,5)" "The program being debugged stopped while.*" \
422 "stop at nested call level 2"
423 gdb_test "backtrace" \
424 "\#0 add \\(a=4, b=5\\).*\#1 <function called from gdb>.*\#2 add \\(a=2, b=3\\).*\#3 <function called from gdb>.*\#4 main.*" \
425 "backtrace at nested call level 2"
426 gdb_test "print sum10(2,4,6,8,10,12,14,16,18,20)" \
427 "The program being debugged stopped while.*" \
428 "stop at nested call level 3"
429 gdb_test "backtrace" \
430 "\#0 sum10 \\(i0=2, i1=4, i2=6, i3=8, i4=10, i5=12, i6=14, i7=16, i8=18, i9=20\\).*\#1 <function called from gdb>.*\#2 add \\(a=4, b=5\\).*\#3 <function called from gdb>.*\#4 add \\(a=2, b=3\\).*\#5 <function called from gdb>.*\#6 main.*" \
431 "backtrace at nested call level 3"
432 gdb_test "print t_small_values(1,3,5,7,9,11,13,15,17,19)" \
433 "The program being debugged stopped while.*" \
434 "stop at nested call level 4"
435 gdb_test "backtrace" \
436 "\#0 t_small_values \\(arg1=1 '.001', arg2=3, arg3=5, arg4=7 '.a', arg5=9, arg6=11 '.v', arg7=13, arg8=15, arg9=17, arg10=19\\).*\#2 sum10 \\(i0=2, i1=4, i2=6, i3=8, i4=10, i5=12, i6=14, i7=16, i8=18, i9=20\\).*\#3 <function called from gdb>.*\#4 add \\(a=4, b=5\\).*\#5 <function called from gdb>.*\#6 add \\(a=2, b=3\\).*\#7 <function called from gdb>.*\#8 main.*" \
437 "backtrace at nested call level 4"
438 gdb_test "finish" "Value returned is .* = 100" \
439 "Finish from nested call level 4"
440 gdb_test "backtrace" \
441 "\#0 sum10 \\(i0=2, i1=4, i2=6, i3=8, i4=10, i5=12, i6=14, i7=16, i8=18, i9=20\\).*\#1 <function called from gdb>.*\#2 add \\(a=4, b=5\\).*\#3 <function called from gdb>.*\#4 add \\(a=2, b=3\\).*\#5 <function called from gdb>.*\#6 main.*" \
442 "backtrace after finish from nested call level 4"
443 gdb_test "finish" "Value returned is .* = 110" \
444 "Finish from nested call level 3"
445 gdb_test "backtrace" \
446 "\#0 add \\(a=4, b=5\\).*\#1 <function called from gdb>.*\#2 add \\(a=2, b=3\\).*\#3 <function called from gdb>.*\#4 main.*" \
447 "backtrace after finish from nested call level 3"
448 gdb_test "finish" "Value returned is .* = 9" \
449 "Finish from nested call level 2"
450 gdb_test "backtrace" \
451 "\#0 add \\(a=2, b=3\\).*\#1 <function called from gdb>.*\#2 main.*" \
452 "backtrace after finish from nested call level 2"
453 gdb_test "finish" "Value returned is .* = 5" \
454 "Finish from nested call level 1"
455 gdb_test "backtrace" "\#0 main .*" \
456 "backtrace after finish from nested call level 1"
457
458 set new_reg_content [fetch_all_registers \
459 "register contents after nested call dummies"]
460 if {$old_reg_content == $new_reg_content} then {
461 pass "nested call dummies preserve register contents"
462 } else {
463 fail "nested call dummies preserve register contents"
464 }
465
466 # GDB should not crash by internal error on $sp underflow during the inferior
467 # call. It is OK it will stop on some: Cannot access memory at address 0x$hex.
468
469 if {![target_info exists gdb,nosignals] && ![istarget "*-*-uclinux*"]} {
470 gdb_test {set $old_sp = $sp}
471
472 gdb_test {set $sp = 0}
473 gdb_test "call doubleit (1)" "" "sp == 0: call doubleit (1)"
474
475 gdb_test {set $sp = -1}
476 gdb_test "call doubleit (1)" "" "sp == -1: call doubleit (1)"
477
478 gdb_test {set $sp = $old_sp}
479 }
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