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)
23 set testfile "callfuncs"
24 set srcfile ${testfile}.c
25 set binfile ${objdir}/${subdir}/${testfile}
27 set compile_flags {debug}
28 if [support_complex_tests] {
29 lappend compile_flags "additional_flags=-DTEST_COMPLEX"
32 if { [gdb_compile "${srcdir}/${subdir}/${srcfile}" "${binfile}" executable $compile_flags] != "" } {
33 untested callfuncs.exp
37 # Create and source the file that provides information about the compiler
38 # used to compile the test case.
40 if [get_compiler_info ${binfile}] {
44 if {$hp_aCC_compiler} {
50 # Some targets can't do function calls, so don't even bother with this
52 if [target_info exists gdb,cannot_call_functions] {
53 setup_xfail "*-*-*" 2416
54 fail "This target can not call functions"
58 # FIXME: Before calling this proc, we should probably verify that
59 # we can call inferior functions and get a valid integral value
61 # Note that it is OK to check for 0 or 1 as the returned values, because C
62 # specifies that the numeric value of a relational or logical expression
63 # (computed in the inferior) is 1 for true and 0 for false.
65 proc do_function_calls {} {
69 # We need to up this because this can be really slow on some boards.
72 gdb_test "p t_char_values(0,0)" " = 0"
73 gdb_test "p t_char_values('a','b')" " = 1"
74 gdb_test "p t_char_values(char_val1,char_val2)" " = 1"
75 gdb_test "p t_char_values('a',char_val2)" " = 1"
76 gdb_test "p t_char_values(char_val1,'b')" " = 1"
78 gdb_test "p t_short_values(0,0)" " = 0"
79 gdb_test "p t_short_values(10,-23)" " = 1"
80 gdb_test "p t_short_values(short_val1,short_val2)" " = 1"
81 gdb_test "p t_short_values(10,short_val2)" " = 1"
82 gdb_test "p t_short_values(short_val1,-23)" " = 1"
84 gdb_test "p t_int_values(0,0)" " = 0"
85 gdb_test "p t_int_values(87,-26)" " = 1"
86 gdb_test "p t_int_values(int_val1,int_val2)" " = 1"
87 gdb_test "p t_int_values(87,int_val2)" " = 1"
88 gdb_test "p t_int_values(int_val1,-26)" " = 1"
90 gdb_test "p t_long_values(0,0)" " = 0"
91 gdb_test "p t_long_values(789,-321)" " = 1"
92 gdb_test "p t_long_values(long_val1,long_val2)" " = 1"
93 gdb_test "p t_long_values(789,long_val2)" " = 1"
94 gdb_test "p t_long_values(long_val1,-321)" " = 1"
96 if ![target_info exists gdb,skip_float_tests] {
97 gdb_test "p t_float_values(0.0,0.0)" " = 0"
99 # These next four tests fail on the mn10300.
100 # The first value is passed in regs, the other in memory.
101 # Gcc emits different stabs for the two parameters; the first is
102 # claimed to be a float, the second a double.
103 # dbxout.c in gcc claims this is the desired behavior.
104 # These tests also fail for RealView, because GDB can not tell that
105 # the function is unprototyped.
106 setup_xfail "mn10300-*-*"
107 if { [test_compiler_info "armcc-*"] } { setup_xfail "*-*-*" }
108 gdb_test "p t_float_values(3.14159,-2.3765)" " = 1"
109 setup_xfail "mn10300-*-*"
110 if { [test_compiler_info "armcc-*"] } { setup_xfail "*-*-*" }
111 gdb_test "p t_float_values(float_val1,float_val2)" " = 1"
112 setup_xfail "mn10300-*-*"
113 if { [test_compiler_info "armcc-*"] } { setup_xfail "*-*-*" }
114 gdb_test "p t_float_values(3.14159,float_val2)" " = 1"
115 setup_xfail "mn10300-*-*"
116 if { [test_compiler_info "armcc-*"] } { setup_xfail "*-*-*" }
117 gdb_test "p t_float_values(float_val1,-2.3765)" " = 1"
119 # Test passing of arguments which might not be widened.
120 gdb_test "p t_float_values2(0.0,0.0)" " = 0"
122 # Although PR 5318 mentions SunOS specifically, this seems
123 # to be a generic problem on quite a few platforms.
124 if $prototypes then {
125 setup_xfail "sparc-*-*" "mips*-*-*" 5318
126 if { ! [test_compiler_info gcc-*-*] } then {
127 setup_xfail "alpha-dec-osf2*" "i*86-*-sysv4*" 5318
131 gdb_test "p t_float_values2(3.14159,float_val2)" " = 1"
133 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."
135 gdb_test "p t_small_values(1,2,3,4,5,6,7,8,9,10)" " = 55"
137 gdb_test "p t_double_values(0.0,0.0)" " = 0"
138 gdb_test "p t_double_values(45.654,-67.66)" " = 1"
139 gdb_test "p t_double_values(double_val1,double_val2)" " = 1"
140 gdb_test "p t_double_values(45.654,double_val2)" " = 1"
141 gdb_test "p t_double_values(double_val1,-67.66)" " = 1"
143 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."
145 gdb_test "p t_double_int(99.0, 1)" " = 0"
146 gdb_test "p t_double_int(99.0, 99)" " = 1"
147 gdb_test "p t_int_double(99, 1.0)" " = 0"
148 gdb_test "p t_int_double(99, 99.0)" " = 1"
151 if [support_complex_tests] {
152 setup_kfail_for_target gdb/12798 "x86_64-*-*"
153 gdb_test "p t_float_complex_values(fc1, fc2)" " = 1"
154 gdb_test "p t_float_complex_values(fc3, fc4)" " = 0"
156 setup_kfail_for_target gdb/12800 "x86_64-*-*"
157 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"
158 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"
160 setup_kfail_for_target gdb/12798 "x86_64-*-*"
161 gdb_test "p t_double_complex_values(dc1, dc2)" " = 1"
162 gdb_test "p t_double_complex_values(dc3, dc4)" " = 0"
164 setup_kfail_for_target gdb/12800 "x86_64-*-*"
165 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"
166 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"
168 gdb_test "p t_long_double_complex_values(ldc1, ldc2)" " = 1"
169 gdb_test "p t_long_double_complex_values(ldc3, ldc4)" " = 0"
170 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"
171 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"
174 gdb_test "p t_string_values(string_val2,string_val1)" " = 0"
175 gdb_test "p t_string_values(string_val1,string_val2)" " = 1"
176 gdb_test "p t_string_values(\"string 1\",\"string 2\")" " = 1"
177 gdb_test "p t_string_values(\"string 1\",string_val2)" " = 1"
178 gdb_test "p t_string_values(string_val1,\"string 2\")" " = 1"
180 gdb_test "p t_char_array_values(char_array_val2,char_array_val1)" " = 0"
181 gdb_test "p t_char_array_values(char_array_val1,char_array_val2)" " = 1"
182 gdb_test "p t_char_array_values(\"carray 1\",\"carray 2\")" " = 1"
183 gdb_test "p t_char_array_values(\"carray 1\",char_array_val2)" " = 1"
184 gdb_test "p t_char_array_values(char_array_val1,\"carray 2\")" " = 1"
186 gdb_test "p doubleit(4)" " = 8"
187 gdb_test "p add(4,5)" " = 9"
188 gdb_test "p t_func_values(func_val2,func_val1)" " = 0"
189 gdb_test "p t_func_values(func_val1,func_val2)" " = 1"
191 gdb_test "p function_struct.func(5)" " = 10"
192 gdb_test "p function_struct_ptr->func(10)" " = 20"
194 # GDB currently screws up the passing of function parameters for
195 # ABIs that use function descriptors. Instead of passing the
196 # address of te function descriptor, GDB passes the address of the
197 # function body. This results in the called function treating the
198 # first few instructions of the function proper as a descriptor
199 # and attempting a jump through that (a totally random address).
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(add,func_val2)" " = 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_func_values(func_val1,doubleit)" " = 1"
208 setup_kfail gdb/1457 "rs6000*-*-aix*"
209 setup_kfail gdb/1457 "powerpc*-*-aix*"
210 setup_kfail gdb/1457 hppa*-*-hpux*
211 gdb_test "p t_call_add(add,3,4)" " = 7"
212 gdb_test "p t_call_add(func_val1,3,4)" " = 7"
214 gdb_test "p t_enum_value1(enumval1)" " = 1"
215 gdb_test "p t_enum_value1(enum_val1)" " = 1"
216 gdb_test "p t_enum_value1(enum_val2)" " = 0"
218 gdb_test "p t_enum_value2(enumval2)" " = 1"
219 gdb_test "p t_enum_value2(enum_val2)" " = 1"
220 gdb_test "p t_enum_value2(enum_val1)" " = 0"
222 gdb_test "p sum_args(1,{2})" " = 2"
223 gdb_test "p sum_args(2,{2,3})" " = 5"
224 gdb_test "p sum_args(3,{2,3,4})" " = 9"
225 gdb_test "p sum_args(4,{2,3,4,5})" " = 14"
227 gdb_test "p sum10 (1, 2, 3, 4, 5, 6, 7, 8, 9, 10)" " = 55"
229 gdb_test "p cmp10 (0, 1, 2, 3, 4, 5, 6, 7, 8, 9)" " = 1"
231 gdb_test "p t_structs_c(struct_val1)" "= 120 'x'" \
232 "call inferior func with struct - returns char"
233 gdb_test "p t_structs_s(struct_val1)" "= 87" \
234 "call inferior func with struct - returns short"
235 gdb_test "p t_structs_i(struct_val1)" "= 76" \
236 "call inferior func with struct - returns int"
237 gdb_test "p t_structs_l(struct_val1)" "= 51" \
238 "call inferior func with struct - returns long"
240 if ![target_info exists gdb,skip_float_tests] {
241 gdb_test "p t_structs_f(struct_val1)" "= 2.12.*" \
242 "call inferior func with struct - returns float"
243 gdb_test "p t_structs_d(struct_val1)" "= 9.87.*" \
244 "call inferior func with struct - returns double"
247 if [support_complex_tests] {
249 setup_kfail_for_target gdb/12796 "x86_64-*-*"
250 gdb_test "p t_structs_fc(struct_val1)" ".*= 3 \\+ 3 \\* I" \
251 "call inferior func with struct - returns float _Complex"
253 setup_kfail_for_target gdb/12783 "i?86-*-*"
254 setup_kfail_for_target gdb/12796 "x86_64-*-*"
255 gdb_test "p t_structs_dc(struct_val1)" ".*= 4 \\+ 4 \\* I" \
256 "call inferior func with struct - returns double _Complex"
258 setup_kfail_for_target gdb/12783 "i?86-*-*"
259 setup_kfail_for_target gdb/12796 "x86_64-*-*"
260 gdb_test "p t_structs_ldc(struct_val1)" "= 5 \\+ 5 \\* I" \
261 "call inferior func with struct - returns long double _Complex"
264 gdb_test "p t_structs_a(struct_val1)" "= (.unsigned char .. )?\"foo\"" \
265 "call inferior func with struct - returns char *"
268 # Procedure to get current content of all registers.
269 proc fetch_all_registers {test} {
272 set all_registers_lines {}
274 # Former trailing `\[\r\n\]+' may eat just \r leaving \n in the buffer
275 # corrupting the next matches.
276 if {[gdb_test_multiple "info all-registers" $test {
277 -re "info all-registers\r\n" {
280 -ex "The program has no registers now" {
284 -re "^bspstore\[ \t\]+\[^\r\n\]+\r\n" {
285 if [istarget "ia64-*-*"] {
286 # Filter out bspstore which is specially tied to bsp,
287 # giving spurious differences.
289 lappend all_registers_lines $expect_out(0,string)
293 -re "^last_break\[ \t\]+\[^\r\n\]+\r\n" {
294 if [istarget "s390*-*-*"] {
295 # Filter out last_break which is read-only,
296 # giving spurious differences.
298 lappend all_registers_lines $expect_out(0,string)
302 -re "^\[^ \t\]+\[ \t\]+\[^\r\n\]+\r\n" {
303 lappend all_registers_lines $expect_out(0,string)
306 -re "$gdb_prompt $" {
309 -re "^\[^\r\n\]+\r\n" {
311 warning "Unrecognized output: $expect_out(0,string)"
326 return $all_registers_lines
329 proc rerun_and_prepare {} {
330 global hp_aCC_compiler
332 if { $hp_aCC_compiler } {
333 # Do not set language explicitly to 'C'. This will cause aCC
334 # tests to fail because promotion rules are different. Just let
335 # the language be set to the default.
337 if { ![runto_main] } {
341 # However, turn off overload-resolution for aCC. Having it on causes
344 gdb_test_no_output "set overload-resolution 0"
346 if { ![runto_main] } {
349 gdb_test_no_output "set language c"
354 # Make sure that malloc gets called and that the floating point unit
355 # is initialized via a call to t_double_values.
356 gdb_test "next" "t_double_values\\(double_val1, double_val2\\);.*" \
357 "next to t_double_values"
358 gdb_test "next" "t_structs_c\\(struct_val1\\);.*" \
359 "next to t_structs_c"
363 # Start with a fresh gdb.
367 gdb_reinitialize_dir $srcdir/$subdir
370 gdb_test_no_output "set print sevenbit-strings"
371 gdb_test_no_output "set print address off"
372 gdb_test_no_output "set width 0"
376 # Save all register contents.
377 set old_reg_content [fetch_all_registers "retrieve original register contents"]
379 # Perform function calls.
382 # Check if all registers still have the same value.
383 set new_reg_content [fetch_all_registers \
384 "register contents after gdb function calls"]
385 if {$old_reg_content == $new_reg_content} then {
386 pass "gdb function calls preserve register contents"
388 set old_reg_content $new_reg_content
389 fail "gdb function calls preserve register contents"
393 # Save all register contents.
394 set old_reg_content [fetch_all_registers "retrieve original register contents"]
396 # Set breakpoint at a function we will call from gdb.
399 # Call function (causing a breakpoint hit in the call dummy) and do a continue,
400 # make sure we are back at main and still have the same register contents.
401 gdb_test "print add(4,5)" \
402 "The program being debugged stopped while.*" \
403 "stop at breakpoint in call dummy function"
404 gdb_test "continue" "Continuing.*" "continue from call dummy breakpoint"
405 if ![gdb_test "bt 2" \
407 "bt after continuing from call dummy breakpoint"] then {
408 set new_reg_content [fetch_all_registers \
409 "register contents after stop in call dummy"]
410 if {$old_reg_content == $new_reg_content} then {
411 pass "continue after stop in call dummy preserves register contents"
413 fail "continue after stop in call dummy preserves register contents"
418 # Set breakpoint at a function we will call from gdb.
420 # Save all register contents.
421 set old_reg_content [fetch_all_registers "retrieve original register contents"]
423 # Call function (causing a breakpoint hit in the call dummy) and do a finish,
424 # make sure we are back at main and still have the same register contents.
425 gdb_test "print add(4,5)" "The program being debugged stopped while.*" \
426 "call function causing a breakpoint then do a finish"
428 "Value returned is .* = 9" \
429 "finish from call dummy breakpoint returns correct value"
430 if ![gdb_test "bt 2" \
432 "bt after finishing from call dummy breakpoint"] then {
433 set new_reg_content [fetch_all_registers \
434 "register contents after finish in call dummy"]
435 if {$old_reg_content == $new_reg_content} then {
436 pass "finish after stop in call dummy preserves register contents"
438 fail "finish after stop in call dummy preserves register contents"
443 # Set breakpoint at a function we will call from gdb.
445 # Save all register contents.
446 set old_reg_content [fetch_all_registers "retrieve original register contents"]
448 # Call function (causing a breakpoint hit in the call dummy) and do a return
449 # with a value, make sure we are back at main with the same register contents.
450 gdb_test "print add(4,5)" "The program being debugged stopped while.*" \
451 "call function causing a breakpoint and then do a return"
452 if ![gdb_test "return 7" \
454 "back at main after return from call dummy breakpoint" \
455 "Make add return now. .y or n.*" \
457 set new_reg_content [fetch_all_registers \
458 "register contents after return in call dummy"]
459 if {$old_reg_content == $new_reg_content} then {
460 pass "return after stop in call dummy preserves register contents"
462 fail "return after stop in call dummy preserves register contents"
467 # Set breakpoint at a function we will call from gdb.
469 set old_reg_content [fetch_all_registers "retrieve original register contents"]
471 # Call function (causing a breakpoint hit in the call dummy), and
472 # call another function from the call dummy frame (thereby setting up
473 # several nested call dummy frames). Test that backtrace and finish
474 # work when several call dummies are nested.
476 gdb_breakpoint t_small_values
477 gdb_test "print add(2,3)" "The program being debugged stopped while.*" \
478 "stop at nested call level 1"
479 gdb_test "backtrace" \
480 "\#0 add \\(a=2, b=3\\).*\#1 <function called from gdb>.*\#2 main.*" \
481 "backtrace at nested call level 1"
482 gdb_test "print add(4,5)" "The program being debugged stopped while.*" \
483 "stop at nested call level 2"
484 gdb_test "backtrace" \
485 "\#0 add \\(a=4, b=5\\).*\#1 <function called from gdb>.*\#2 add \\(a=2, b=3\\).*\#3 <function called from gdb>.*\#4 main.*" \
486 "backtrace at nested call level 2"
487 gdb_test "print sum10(2,4,6,8,10,12,14,16,18,20)" \
488 "The program being debugged stopped while.*" \
489 "stop at nested call level 3"
490 gdb_test "backtrace" \
491 "\#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.*" \
492 "backtrace at nested call level 3"
493 gdb_test "print t_small_values(1,3,5,7,9,11,13,15,17,19)" \
494 "The program being debugged stopped while.*" \
495 "stop at nested call level 4"
496 gdb_test "backtrace" \
497 "\#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.*" \
498 "backtrace at nested call level 4"
499 gdb_test "finish" "Value returned is .* = 100" \
500 "Finish from nested call level 4"
501 gdb_test "backtrace" \
502 "\#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.*" \
503 "backtrace after finish from nested call level 4"
504 gdb_test "finish" "Value returned is .* = 110" \
505 "Finish from nested call level 3"
506 gdb_test "backtrace" \
507 "\#0 add \\(a=4, b=5\\).*\#1 <function called from gdb>.*\#2 add \\(a=2, b=3\\).*\#3 <function called from gdb>.*\#4 main.*" \
508 "backtrace after finish from nested call level 3"
509 gdb_test "finish" "Value returned is .* = 9" \
510 "Finish from nested call level 2"
511 gdb_test "backtrace" \
512 "\#0 add \\(a=2, b=3\\).*\#1 <function called from gdb>.*\#2 main.*" \
513 "backtrace after finish from nested call level 2"
514 gdb_test "finish" "Value returned is .* = 5" \
515 "Finish from nested call level 1"
516 gdb_test "backtrace" "\#0 main .*" \
517 "backtrace after finish from nested call level 1"
519 set new_reg_content [fetch_all_registers \
520 "register contents after nested call dummies"]
521 if {$old_reg_content == $new_reg_content} then {
522 pass "nested call dummies preserve register contents"
524 fail "nested call dummies preserve register contents"
527 # GDB should not crash by internal error on $sp underflow during the inferior
528 # call. It is OK it will stop on some: Cannot access memory at address 0x$hex.
530 if {![target_info exists gdb,nosignals] && ![istarget "*-*-uclinux*"]} {
531 gdb_test {set $old_sp = $sp}
533 gdb_test {set $sp = 0}
534 gdb_test "call doubleit (1)" ".*" "sp == 0: call doubleit (1)"
536 gdb_test {set $sp = -1}
537 gdb_test "call doubleit (1)" ".*" "sp == -1: call doubleit (1)"
539 gdb_test {set $sp = $old_sp}
542 # Test function descriptor resolution - the separate debug info .opd section
543 # handling vs. local labels `.L'... as `Lcallfunc' starts with `L'.
545 gdb_test "print callfunc (Lcallfunc, 5)" " = 12"