1 # Copyright 1992, 1994-2004, 2007-2012 Free Software Foundation, Inc.
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
5 # the Free Software Foundation; either version 3 of the License, or
6 # (at your option) any later version.
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.
13 # You should have received a copy of the GNU General Public License
14 # along with this program. If not, see <http://www.gnu.org/licenses/>.
16 # This file was written by Fred Fish. (fnf@cygnus.com)
17 # and modified by Bob Manson. (manson@cygnus.com)
19 set testfile "callfuncs"
20 set srcfile ${testfile}.c
21 set binfile ${objdir}/${subdir}/${testfile}
23 set compile_flags {debug}
24 if [support_complex_tests] {
25 lappend compile_flags "additional_flags=-DTEST_COMPLEX"
28 if { [gdb_compile "${srcdir}/${subdir}/${srcfile}" "${binfile}" executable $compile_flags] != "" } {
29 untested callfuncs.exp
33 # Create and source the file that provides information about the compiler
34 # used to compile the test case.
36 if [get_compiler_info] {
40 if {$hp_aCC_compiler} {
46 # Some targets can't do function calls, so don't even bother with this
48 if [target_info exists gdb,cannot_call_functions] {
49 setup_xfail "*-*-*" 2416
50 fail "This target can not call functions"
54 # FIXME: Before calling this proc, we should probably verify that
55 # we can call inferior functions and get a valid integral value
57 # Note that it is OK to check for 0 or 1 as the returned values, because C
58 # specifies that the numeric value of a relational or logical expression
59 # (computed in the inferior) is 1 for true and 0 for false.
61 proc do_function_calls {} {
65 # We need to up this because this can be really slow on some boards.
68 gdb_test "p t_char_values(0,0)" " = 0"
69 gdb_test "p t_char_values('a','b')" " = 1"
70 gdb_test "p t_char_values(char_val1,char_val2)" " = 1"
71 gdb_test "p t_char_values('a',char_val2)" " = 1"
72 gdb_test "p t_char_values(char_val1,'b')" " = 1"
74 gdb_test "p t_short_values(0,0)" " = 0"
75 gdb_test "p t_short_values(10,-23)" " = 1"
76 gdb_test "p t_short_values(short_val1,short_val2)" " = 1"
77 gdb_test "p t_short_values(10,short_val2)" " = 1"
78 gdb_test "p t_short_values(short_val1,-23)" " = 1"
80 gdb_test "p t_int_values(0,0)" " = 0"
81 gdb_test "p t_int_values(87,-26)" " = 1"
82 gdb_test "p t_int_values(int_val1,int_val2)" " = 1"
83 gdb_test "p t_int_values(87,int_val2)" " = 1"
84 gdb_test "p t_int_values(int_val1,-26)" " = 1"
86 gdb_test "p t_long_values(0,0)" " = 0"
87 gdb_test "p t_long_values(789,-321)" " = 1"
88 gdb_test "p t_long_values(long_val1,long_val2)" " = 1"
89 gdb_test "p t_long_values(789,long_val2)" " = 1"
90 gdb_test "p t_long_values(long_val1,-321)" " = 1"
92 if ![target_info exists gdb,skip_float_tests] {
93 gdb_test "p t_float_values(0.0,0.0)" " = 0"
95 # These next four tests fail on the mn10300.
96 # The first value is passed in regs, the other in memory.
97 # Gcc emits different stabs for the two parameters; the first is
98 # claimed to be a float, the second a double.
99 # dbxout.c in gcc claims this is the desired behavior.
100 # These tests also fail for RealView, because GDB can not tell that
101 # the function is unprototyped.
102 setup_xfail "mn10300-*-*"
103 if { [test_compiler_info "armcc-*"] } { setup_xfail "*-*-*" }
104 gdb_test "p t_float_values(3.14159,-2.3765)" " = 1"
105 setup_xfail "mn10300-*-*"
106 if { [test_compiler_info "armcc-*"] } { setup_xfail "*-*-*" }
107 gdb_test "p t_float_values(float_val1,float_val2)" " = 1"
108 setup_xfail "mn10300-*-*"
109 if { [test_compiler_info "armcc-*"] } { setup_xfail "*-*-*" }
110 gdb_test "p t_float_values(3.14159,float_val2)" " = 1"
111 setup_xfail "mn10300-*-*"
112 if { [test_compiler_info "armcc-*"] } { setup_xfail "*-*-*" }
113 gdb_test "p t_float_values(float_val1,-2.3765)" " = 1"
115 # Test passing of arguments which might not be widened.
116 gdb_test "p t_float_values2(0.0,0.0)" " = 0"
118 # Although PR 5318 mentions SunOS specifically, this seems
119 # to be a generic problem on quite a few platforms.
120 if $prototypes then {
121 setup_xfail "sparc-*-*" "mips*-*-*" 5318
122 if { ! [test_compiler_info gcc-*-*] } then {
123 setup_xfail "alpha-dec-osf2*" "i*86-*-sysv4*" 5318
127 gdb_test "p t_float_values2(3.14159,float_val2)" " = 1"
129 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."
131 gdb_test "p t_small_values(1,2,3,4,5,6,7,8,9,10)" " = 55"
133 gdb_test "p t_double_values(0.0,0.0)" " = 0"
134 gdb_test "p t_double_values(45.654,-67.66)" " = 1"
135 gdb_test "p t_double_values(double_val1,double_val2)" " = 1"
136 gdb_test "p t_double_values(45.654,double_val2)" " = 1"
137 gdb_test "p t_double_values(double_val1,-67.66)" " = 1"
139 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."
141 gdb_test "p t_double_int(99.0, 1)" " = 0"
142 gdb_test "p t_double_int(99.0, 99)" " = 1"
143 gdb_test "p t_int_double(99, 1.0)" " = 0"
144 gdb_test "p t_int_double(99, 99.0)" " = 1"
147 if [support_complex_tests] {
148 setup_kfail_for_target gdb/12798 "x86_64-*-*"
149 gdb_test "p t_float_complex_values(fc1, fc2)" " = 1"
150 gdb_test "p t_float_complex_values(fc3, fc4)" " = 0"
152 setup_kfail_for_target gdb/12800 "x86_64-*-*"
153 gdb_test "p t_float_complex_many_args(fc1, fc2, fc3, fc4, fc1, fc2, fc3, fc4, fc1, fc2, fc3, fc4, fc1, fc2, fc3, fc4)" " = 1"
154 gdb_test "p t_float_complex_many_args(fc1, fc1, fc1, fc1, fc1, fc1, fc1, fc1, fc1, fc1, fc1, fc1, fc1, fc1, fc1, fc1)" " = 0"
156 setup_kfail_for_target gdb/12798 "x86_64-*-*"
157 gdb_test "p t_double_complex_values(dc1, dc2)" " = 1"
158 gdb_test "p t_double_complex_values(dc3, dc4)" " = 0"
160 setup_kfail_for_target gdb/12800 "x86_64-*-*"
161 gdb_test "p t_double_complex_many_args(dc1, dc2, dc3, dc4, dc1, dc2, dc3, dc4, dc1, dc2, dc3, dc4, dc1, dc2, dc3, dc4)" " = 1"
162 gdb_test "p t_double_complex_many_args(dc1, dc1, dc1, dc1, dc1, dc1, dc1, dc1, dc1, dc1, dc1, dc1, dc1, dc1, dc1, dc1)" " = 0"
164 gdb_test "p t_long_double_complex_values(ldc1, ldc2)" " = 1"
165 gdb_test "p t_long_double_complex_values(ldc3, ldc4)" " = 0"
166 gdb_test "p t_long_double_complex_many_args(ldc1, ldc2, ldc3, ldc4, ldc1, ldc2, ldc3, ldc4, ldc1, ldc2, ldc3, ldc4, ldc1, ldc2, ldc3, ldc4)" " = 1"
167 gdb_test "p t_long_double_complex_many_args(ldc1, ldc1, ldc1, ldc1, ldc1, ldc1, ldc1,ldc1, ldc1, ldc1, ldc1, ldc1, ldc1, ldc1, ldc1, ldc1)" " = 0"
170 gdb_test "p t_string_values(string_val2,string_val1)" " = 0"
171 gdb_test "p t_string_values(string_val1,string_val2)" " = 1"
172 gdb_test "p t_string_values(\"string 1\",\"string 2\")" " = 1"
173 gdb_test "p t_string_values(\"string 1\",string_val2)" " = 1"
174 gdb_test "p t_string_values(string_val1,\"string 2\")" " = 1"
176 gdb_test "p t_char_array_values(char_array_val2,char_array_val1)" " = 0"
177 gdb_test "p t_char_array_values(char_array_val1,char_array_val2)" " = 1"
178 gdb_test "p t_char_array_values(\"carray 1\",\"carray 2\")" " = 1"
179 gdb_test "p t_char_array_values(\"carray 1\",char_array_val2)" " = 1"
180 gdb_test "p t_char_array_values(char_array_val1,\"carray 2\")" " = 1"
182 gdb_test "p doubleit(4)" " = 8"
183 gdb_test "p add(4,5)" " = 9"
184 gdb_test "p t_func_values(func_val2,func_val1)" " = 0"
185 gdb_test "p t_func_values(func_val1,func_val2)" " = 1"
187 gdb_test "p function_struct.func(5)" " = 10"
188 gdb_test "p function_struct_ptr->func(10)" " = 20"
190 # GDB currently screws up the passing of function parameters for
191 # ABIs that use function descriptors. Instead of passing the
192 # address of te function descriptor, GDB passes the address of the
193 # function body. This results in the called function treating the
194 # first few instructions of the function proper as a descriptor
195 # and attempting a jump through that (a totally random address).
196 setup_kfail gdb/1457 "rs6000*-*-aix*"
197 setup_kfail gdb/1457 "powerpc*-*-aix*"
198 setup_kfail gdb/1457 hppa*-*-hpux*
199 gdb_test "p t_func_values(add,func_val2)" " = 1"
200 setup_kfail gdb/1457 "rs6000*-*-aix*"
201 setup_kfail gdb/1457 "powerpc*-*-aix*"
202 setup_kfail gdb/1457 hppa*-*-hpux*
203 gdb_test "p t_func_values(func_val1,doubleit)" " = 1"
204 setup_kfail gdb/1457 "rs6000*-*-aix*"
205 setup_kfail gdb/1457 "powerpc*-*-aix*"
206 setup_kfail gdb/1457 hppa*-*-hpux*
207 gdb_test "p t_call_add(add,3,4)" " = 7"
208 gdb_test "p t_call_add(func_val1,3,4)" " = 7"
210 gdb_test "p t_enum_value1(enumval1)" " = 1"
211 gdb_test "p t_enum_value1(enum_val1)" " = 1"
212 gdb_test "p t_enum_value1(enum_val2)" " = 0"
214 gdb_test "p t_enum_value2(enumval2)" " = 1"
215 gdb_test "p t_enum_value2(enum_val2)" " = 1"
216 gdb_test "p t_enum_value2(enum_val1)" " = 0"
218 gdb_test "p sum_args(1,{2})" " = 2"
219 gdb_test "p sum_args(2,{2,3})" " = 5"
220 gdb_test "p sum_args(3,{2,3,4})" " = 9"
221 gdb_test "p sum_args(4,{2,3,4,5})" " = 14"
223 gdb_test "p sum10 (1, 2, 3, 4, 5, 6, 7, 8, 9, 10)" " = 55"
225 gdb_test "p cmp10 (0, 1, 2, 3, 4, 5, 6, 7, 8, 9)" " = 1"
227 gdb_test "p t_structs_c(struct_val1)" "= 120 'x'" \
228 "call inferior func with struct - returns char"
229 gdb_test "p t_structs_s(struct_val1)" "= 87" \
230 "call inferior func with struct - returns short"
231 gdb_test "p t_structs_i(struct_val1)" "= 76" \
232 "call inferior func with struct - returns int"
233 gdb_test "p t_structs_l(struct_val1)" "= 51" \
234 "call inferior func with struct - returns long"
236 if ![target_info exists gdb,skip_float_tests] {
237 gdb_test "p t_structs_f(struct_val1)" "= 2.12.*" \
238 "call inferior func with struct - returns float"
239 gdb_test "p t_structs_d(struct_val1)" "= 9.87.*" \
240 "call inferior func with struct - returns double"
243 if [support_complex_tests] {
245 setup_kfail_for_target gdb/12796 "x86_64-*-*"
246 gdb_test "p t_structs_fc(struct_val1)" ".*= 3 \\+ 3 \\* I" \
247 "call inferior func with struct - returns float _Complex"
249 setup_kfail_for_target gdb/12783 "i?86-*-*"
250 setup_kfail_for_target gdb/12796 "x86_64-*-*"
251 gdb_test "p t_structs_dc(struct_val1)" ".*= 4 \\+ 4 \\* I" \
252 "call inferior func with struct - returns double _Complex"
254 setup_kfail_for_target gdb/12783 "i?86-*-*"
255 setup_kfail_for_target gdb/12796 "x86_64-*-*"
256 gdb_test "p t_structs_ldc(struct_val1)" "= 5 \\+ 5 \\* I" \
257 "call inferior func with struct - returns long double _Complex"
260 gdb_test "p t_structs_a(struct_val1)" "= (.unsigned char .. )?<buf.*> \"foo\"" \
261 "call inferior func with struct - returns char *"
264 # Procedure to get current content of all registers.
265 proc fetch_all_registers {test} {
268 set all_registers_lines {}
270 # Former trailing `\[\r\n\]+' may eat just \r leaving \n in the buffer
271 # corrupting the next matches.
272 if {[gdb_test_multiple "info all-registers" $test {
273 -re "info all-registers\r\n" {
276 -ex "The program has no registers now" {
280 -re "^bspstore\[ \t\]+\[^\r\n\]+\r\n" {
281 if [istarget "ia64-*-*"] {
282 # Filter out bspstore which is specially tied to bsp,
283 # giving spurious differences.
285 lappend all_registers_lines $expect_out(0,string)
289 -re "^last_break\[ \t\]+\[^\r\n\]+\r\n" {
290 if [istarget "s390*-*-*"] {
291 # Filter out last_break which is read-only,
292 # giving spurious differences.
294 lappend all_registers_lines $expect_out(0,string)
298 -re "^\[^ \t\]+\[ \t\]+\[^\r\n\]+\r\n" {
299 lappend all_registers_lines $expect_out(0,string)
302 -re "$gdb_prompt $" {
305 -re "^\[^\r\n\]+\r\n" {
307 warning "Unrecognized output: $expect_out(0,string)"
322 return $all_registers_lines
325 proc rerun_and_prepare {} {
326 global hp_aCC_compiler
328 if { $hp_aCC_compiler } {
329 # Do not set language explicitly to 'C'. This will cause aCC
330 # tests to fail because promotion rules are different. Just let
331 # the language be set to the default.
333 if { ![runto_main] } {
337 # However, turn off overload-resolution for aCC. Having it on causes
340 gdb_test_no_output "set overload-resolution 0"
342 if { ![runto_main] } {
345 gdb_test_no_output "set language c"
350 # Make sure that malloc gets called and that the floating point unit
351 # is initialized via a call to t_double_values.
352 gdb_test "next" "t_double_values\\(double_val1, double_val2\\);.*" \
353 "next to t_double_values"
354 gdb_test "next" "t_structs_c\\(struct_val1\\);.*" \
355 "next to t_structs_c"
359 # Start with a fresh gdb.
363 gdb_reinitialize_dir $srcdir/$subdir
366 gdb_test_no_output "set print sevenbit-strings"
367 gdb_test_no_output "set print address off"
368 gdb_test_no_output "set width 0"
372 # Save all register contents.
373 set old_reg_content [fetch_all_registers "retrieve original register contents"]
375 # Perform function calls.
378 # Check if all registers still have the same value.
379 set new_reg_content [fetch_all_registers \
380 "register contents after gdb function calls"]
381 if {$old_reg_content == $new_reg_content} then {
382 pass "gdb function calls preserve register contents"
384 set old_reg_content $new_reg_content
385 fail "gdb function calls preserve register contents"
389 # Save all register contents.
390 set old_reg_content [fetch_all_registers "retrieve original register contents"]
392 # Set breakpoint at a function we will call from gdb.
395 # Call function (causing a breakpoint hit in the call dummy) and do a continue,
396 # make sure we are back at main and still have the same register contents.
397 gdb_test "print add(4,5)" \
398 "The program being debugged stopped while.*" \
399 "stop at breakpoint in call dummy function"
400 gdb_test "continue" "Continuing.*" "continue from call dummy breakpoint"
401 if ![gdb_test "bt 2" \
403 "bt after continuing from call dummy breakpoint"] then {
404 set new_reg_content [fetch_all_registers \
405 "register contents after stop in call dummy"]
406 if {$old_reg_content == $new_reg_content} then {
407 pass "continue after stop in call dummy preserves register contents"
409 fail "continue after stop in call dummy preserves register contents"
414 # Set breakpoint at a function we will call from gdb.
416 # Save all register contents.
417 set old_reg_content [fetch_all_registers "retrieve original register contents"]
419 # Call function (causing a breakpoint hit in the call dummy) and do a finish,
420 # make sure we are back at main and still have the same register contents.
421 gdb_test "print add(4,5)" "The program being debugged stopped while.*" \
422 "call function causing a breakpoint then do a finish"
424 "Value returned is .* = 9" \
425 "finish from call dummy breakpoint returns correct value"
426 if ![gdb_test "bt 2" \
428 "bt after finishing from call dummy breakpoint"] then {
429 set new_reg_content [fetch_all_registers \
430 "register contents after finish in call dummy"]
431 if {$old_reg_content == $new_reg_content} then {
432 pass "finish after stop in call dummy preserves register contents"
434 fail "finish after stop in call dummy preserves register contents"
439 # Set breakpoint at a function we will call from gdb.
441 # Save all register contents.
442 set old_reg_content [fetch_all_registers "retrieve original register contents"]
444 # Call function (causing a breakpoint hit in the call dummy) and do a return
445 # with a value, make sure we are back at main with the same register contents.
446 gdb_test "print add(4,5)" "The program being debugged stopped while.*" \
447 "call function causing a breakpoint and then do a return"
448 if ![gdb_test "return 7" \
450 "back at main after return from call dummy breakpoint" \
451 "Make add return now. .y or n.*" \
453 set new_reg_content [fetch_all_registers \
454 "register contents after return in call dummy"]
455 if {$old_reg_content == $new_reg_content} then {
456 pass "return after stop in call dummy preserves register contents"
458 fail "return after stop in call dummy preserves register contents"
463 # Set breakpoint at a function we will call from gdb.
465 set old_reg_content [fetch_all_registers "retrieve original register contents"]
467 # Call function (causing a breakpoint hit in the call dummy), and
468 # call another function from the call dummy frame (thereby setting up
469 # several nested call dummy frames). Test that backtrace and finish
470 # work when several call dummies are nested.
472 gdb_breakpoint t_small_values
473 gdb_test "print add(2,3)" "The program being debugged stopped while.*" \
474 "stop at nested call level 1"
475 gdb_test "backtrace" \
476 "\#0 add \\(a=2, b=3\\).*\#1 <function called from gdb>.*\#2 main.*" \
477 "backtrace at nested call level 1"
478 gdb_test "print add(4,5)" "The program being debugged stopped while.*" \
479 "stop at nested call level 2"
480 gdb_test "backtrace" \
481 "\#0 add \\(a=4, b=5\\).*\#1 <function called from gdb>.*\#2 add \\(a=2, b=3\\).*\#3 <function called from gdb>.*\#4 main.*" \
482 "backtrace at nested call level 2"
483 gdb_test "print sum10(2,4,6,8,10,12,14,16,18,20)" \
484 "The program being debugged stopped while.*" \
485 "stop at nested call level 3"
486 gdb_test "backtrace" \
487 "\#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.*" \
488 "backtrace at nested call level 3"
489 gdb_test "print t_small_values(1,3,5,7,9,11,13,15,17,19)" \
490 "The program being debugged stopped while.*" \
491 "stop at nested call level 4"
492 gdb_test "backtrace" \
493 "\#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.*" \
494 "backtrace at nested call level 4"
495 gdb_test "finish" "Value returned is .* = 100" \
496 "Finish from nested call level 4"
497 gdb_test "backtrace" \
498 "\#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.*" \
499 "backtrace after finish from nested call level 4"
500 gdb_test "finish" "Value returned is .* = 110" \
501 "Finish from nested call level 3"
502 gdb_test "backtrace" \
503 "\#0 add \\(a=4, b=5\\).*\#1 <function called from gdb>.*\#2 add \\(a=2, b=3\\).*\#3 <function called from gdb>.*\#4 main.*" \
504 "backtrace after finish from nested call level 3"
505 gdb_test "finish" "Value returned is .* = 9" \
506 "Finish from nested call level 2"
507 gdb_test "backtrace" \
508 "\#0 add \\(a=2, b=3\\).*\#1 <function called from gdb>.*\#2 main.*" \
509 "backtrace after finish from nested call level 2"
510 gdb_test "finish" "Value returned is .* = 5" \
511 "Finish from nested call level 1"
512 gdb_test "backtrace" "\#0 main .*" \
513 "backtrace after finish from nested call level 1"
515 set new_reg_content [fetch_all_registers \
516 "register contents after nested call dummies"]
517 if {$old_reg_content == $new_reg_content} then {
518 pass "nested call dummies preserve register contents"
520 fail "nested call dummies preserve register contents"
523 # GDB should not crash by internal error on $sp underflow during the inferior
524 # call. It is OK it will stop on some: Cannot access memory at address 0x$hex.
526 if {![target_info exists gdb,nosignals] && ![istarget "*-*-uclinux*"]} {
527 gdb_test {set $old_sp = $sp}
529 gdb_test {set $sp = 0}
530 gdb_test "call doubleit (1)" ".*" "sp == 0: call doubleit (1)"
532 gdb_test {set $sp = -1}
533 gdb_test "call doubleit (1)" ".*" "sp == -1: call doubleit (1)"
535 gdb_test {set $sp = $old_sp}
538 # Test function descriptor resolution - the separate debug info .opd section
539 # handling vs. local labels `.L'... as `Lcallfunc' starts with `L'.
541 gdb_test "print callfunc (Lcallfunc, 5)" " = 12"
543 # Regression test for function pointer cast.
544 gdb_test "print *((int *(*) (void)) voidfunc)()" " = 23"