1 # Copyright 1992, 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003,
2 # 2004, 2007, 2008, 2009, 2010, 2011 Free Software Foundation, Inc.
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.
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.
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/>.
17 # This file was written by Fred Fish. (fnf@cygnus.com)
18 # and modified by Bob Manson. (manson@cygnus.com)
24 set testfile "callfuncs"
25 set srcfile ${testfile}.c
26 set binfile ${objdir}/${subdir}/${testfile}
28 set compile_flags {debug}
29 if [support_complex_tests] {
30 lappend compile_flags "additional_flags=-DTEST_COMPLEX"
33 if { [gdb_compile "${srcdir}/${subdir}/${srcfile}" "${binfile}" executable $compile_flags] != "" } {
34 untested callfuncs.exp
38 # Create and source the file that provides information about the compiler
39 # used to compile the test case.
41 if [get_compiler_info ${binfile}] {
45 if {$hp_aCC_compiler} {
51 # Some targets can't do function calls, so don't even bother with this
53 if [target_info exists gdb,cannot_call_functions] {
54 setup_xfail "*-*-*" 2416
55 fail "This target can not call functions"
59 # FIXME: Before calling this proc, we should probably verify that
60 # we can call inferior functions and get a valid integral value
62 # Note that it is OK to check for 0 or 1 as the returned values, because C
63 # specifies that the numeric value of a relational or logical expression
64 # (computed in the inferior) is 1 for true and 0 for false.
66 proc do_function_calls {} {
70 # We need to up this because this can be really slow on some boards.
73 gdb_test "p t_char_values(0,0)" " = 0"
74 gdb_test "p t_char_values('a','b')" " = 1"
75 gdb_test "p t_char_values(char_val1,char_val2)" " = 1"
76 gdb_test "p t_char_values('a',char_val2)" " = 1"
77 gdb_test "p t_char_values(char_val1,'b')" " = 1"
79 gdb_test "p t_short_values(0,0)" " = 0"
80 gdb_test "p t_short_values(10,-23)" " = 1"
81 gdb_test "p t_short_values(short_val1,short_val2)" " = 1"
82 gdb_test "p t_short_values(10,short_val2)" " = 1"
83 gdb_test "p t_short_values(short_val1,-23)" " = 1"
85 gdb_test "p t_int_values(0,0)" " = 0"
86 gdb_test "p t_int_values(87,-26)" " = 1"
87 gdb_test "p t_int_values(int_val1,int_val2)" " = 1"
88 gdb_test "p t_int_values(87,int_val2)" " = 1"
89 gdb_test "p t_int_values(int_val1,-26)" " = 1"
91 gdb_test "p t_long_values(0,0)" " = 0"
92 gdb_test "p t_long_values(789,-321)" " = 1"
93 gdb_test "p t_long_values(long_val1,long_val2)" " = 1"
94 gdb_test "p t_long_values(789,long_val2)" " = 1"
95 gdb_test "p t_long_values(long_val1,-321)" " = 1"
97 if ![target_info exists gdb,skip_float_tests] {
98 gdb_test "p t_float_values(0.0,0.0)" " = 0"
100 # These next four tests fail on the mn10300.
101 # The first value is passed in regs, the other in memory.
102 # Gcc emits different stabs for the two parameters; the first is
103 # claimed to be a float, the second a double.
104 # dbxout.c in gcc claims this is the desired behavior.
105 # These tests also fail for RealView, because GDB can not tell that
106 # the function is unprototyped.
107 setup_xfail "mn10300-*-*"
108 if { [test_compiler_info "armcc-*"] } { setup_xfail "*-*-*" }
109 gdb_test "p t_float_values(3.14159,-2.3765)" " = 1"
110 setup_xfail "mn10300-*-*"
111 if { [test_compiler_info "armcc-*"] } { setup_xfail "*-*-*" }
112 gdb_test "p t_float_values(float_val1,float_val2)" " = 1"
113 setup_xfail "mn10300-*-*"
114 if { [test_compiler_info "armcc-*"] } { setup_xfail "*-*-*" }
115 gdb_test "p t_float_values(3.14159,float_val2)" " = 1"
116 setup_xfail "mn10300-*-*"
117 if { [test_compiler_info "armcc-*"] } { setup_xfail "*-*-*" }
118 gdb_test "p t_float_values(float_val1,-2.3765)" " = 1"
120 # Test passing of arguments which might not be widened.
121 gdb_test "p t_float_values2(0.0,0.0)" " = 0"
123 # Although PR 5318 mentions SunOS specifically, this seems
124 # to be a generic problem on quite a few platforms.
125 if $prototypes then {
126 setup_xfail "sparc-*-*" "mips*-*-*" 5318
127 if { ! [test_compiler_info gcc-*-*] } then {
128 setup_xfail "alpha-dec-osf2*" "i*86-*-sysv4*" 5318
132 gdb_test "p t_float_values2(3.14159,float_val2)" " = 1"
134 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."
136 gdb_test "p t_small_values(1,2,3,4,5,6,7,8,9,10)" " = 55"
138 gdb_test "p t_double_values(0.0,0.0)" " = 0"
139 gdb_test "p t_double_values(45.654,-67.66)" " = 1"
140 gdb_test "p t_double_values(double_val1,double_val2)" " = 1"
141 gdb_test "p t_double_values(45.654,double_val2)" " = 1"
142 gdb_test "p t_double_values(double_val1,-67.66)" " = 1"
144 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."
146 gdb_test "p t_double_int(99.0, 1)" " = 0"
147 gdb_test "p t_double_int(99.0, 99)" " = 1"
148 gdb_test "p t_int_double(99, 1.0)" " = 0"
149 gdb_test "p t_int_double(99, 99.0)" " = 1"
152 if [support_complex_tests] {
153 setup_kfail_for_target gdb/12798 "x86_64-*-*"
154 gdb_test "p t_float_complex_values(fc1, fc2)" " = 1"
155 gdb_test "p t_float_complex_values(fc3, fc4)" " = 0"
157 setup_kfail_for_target gdb/12800 "x86_64-*-*"
158 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"
159 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"
161 setup_kfail_for_target gdb/12798 "x86_64-*-*"
162 gdb_test "p t_double_complex_values(dc1, dc2)" " = 1"
163 gdb_test "p t_double_complex_values(dc3, dc4)" " = 0"
165 setup_kfail_for_target gdb/12800 "x86_64-*-*"
166 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"
167 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"
169 gdb_test "p t_long_double_complex_values(ldc1, ldc2)" " = 1"
170 gdb_test "p t_long_double_complex_values(ldc3, ldc4)" " = 0"
171 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"
172 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"
175 gdb_test "p t_string_values(string_val2,string_val1)" " = 0"
176 gdb_test "p t_string_values(string_val1,string_val2)" " = 1"
177 gdb_test "p t_string_values(\"string 1\",\"string 2\")" " = 1"
178 gdb_test "p t_string_values(\"string 1\",string_val2)" " = 1"
179 gdb_test "p t_string_values(string_val1,\"string 2\")" " = 1"
181 gdb_test "p t_char_array_values(char_array_val2,char_array_val1)" " = 0"
182 gdb_test "p t_char_array_values(char_array_val1,char_array_val2)" " = 1"
183 gdb_test "p t_char_array_values(\"carray 1\",\"carray 2\")" " = 1"
184 gdb_test "p t_char_array_values(\"carray 1\",char_array_val2)" " = 1"
185 gdb_test "p t_char_array_values(char_array_val1,\"carray 2\")" " = 1"
187 gdb_test "p doubleit(4)" " = 8"
188 gdb_test "p add(4,5)" " = 9"
189 gdb_test "p t_func_values(func_val2,func_val1)" " = 0"
190 gdb_test "p t_func_values(func_val1,func_val2)" " = 1"
192 gdb_test "p function_struct.func(5)" " = 10"
193 gdb_test "p function_struct_ptr->func(10)" " = 20"
195 # GDB currently screws up the passing of function parameters for
196 # ABIs that use function descriptors. Instead of passing the
197 # address of te function descriptor, GDB passes the address of the
198 # function body. This results in the called function treating the
199 # first few instructions of the function proper as a descriptor
200 # and attempting a jump through that (a totally random address).
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_func_values(add,func_val2)" " = 1"
205 setup_kfail gdb/1457 "rs6000*-*-aix*"
206 setup_kfail gdb/1457 "powerpc*-*-aix*"
207 setup_kfail gdb/1457 hppa*-*-hpux*
208 gdb_test "p t_func_values(func_val1,doubleit)" " = 1"
209 setup_kfail gdb/1457 "rs6000*-*-aix*"
210 setup_kfail gdb/1457 "powerpc*-*-aix*"
211 setup_kfail gdb/1457 hppa*-*-hpux*
212 gdb_test "p t_call_add(add,3,4)" " = 7"
213 gdb_test "p t_call_add(func_val1,3,4)" " = 7"
215 gdb_test "p t_enum_value1(enumval1)" " = 1"
216 gdb_test "p t_enum_value1(enum_val1)" " = 1"
217 gdb_test "p t_enum_value1(enum_val2)" " = 0"
219 gdb_test "p t_enum_value2(enumval2)" " = 1"
220 gdb_test "p t_enum_value2(enum_val2)" " = 1"
221 gdb_test "p t_enum_value2(enum_val1)" " = 0"
223 gdb_test "p sum_args(1,{2})" " = 2"
224 gdb_test "p sum_args(2,{2,3})" " = 5"
225 gdb_test "p sum_args(3,{2,3,4})" " = 9"
226 gdb_test "p sum_args(4,{2,3,4,5})" " = 14"
228 gdb_test "p sum10 (1, 2, 3, 4, 5, 6, 7, 8, 9, 10)" " = 55"
230 gdb_test "p cmp10 (0, 1, 2, 3, 4, 5, 6, 7, 8, 9)" " = 1"
232 gdb_test "p t_structs_c(struct_val1)" "= 120 'x'" \
233 "call inferior func with struct - returns char"
234 gdb_test "p t_structs_s(struct_val1)" "= 87" \
235 "call inferior func with struct - returns short"
236 gdb_test "p t_structs_i(struct_val1)" "= 76" \
237 "call inferior func with struct - returns int"
238 gdb_test "p t_structs_l(struct_val1)" "= 51" \
239 "call inferior func with struct - returns long"
241 if ![target_info exists gdb,skip_float_tests] {
242 gdb_test "p t_structs_f(struct_val1)" "= 2.12.*" \
243 "call inferior func with struct - returns float"
244 gdb_test "p t_structs_d(struct_val1)" "= 9.87.*" \
245 "call inferior func with struct - returns double"
248 if [support_complex_tests] {
250 setup_kfail_for_target gdb/12796 "x86_64-*-*"
251 setup_kfail_for_target gdb/12797 "arm*-*-*"
252 gdb_test "p t_structs_fc(struct_val1)" ".*= 3 \\+ 3 \\* I" \
253 "call inferior func with struct - returns float _Complex"
255 setup_kfail_for_target gdb/12783 "i?86-*-*"
256 setup_kfail_for_target gdb/12796 "x86_64-*-*"
257 setup_kfail_for_target gdb/12797 "arm*-*-*"
258 gdb_test "p t_structs_dc(struct_val1)" ".*= 4 \\+ 4 \\* I" \
259 "call inferior func with struct - returns double _Complex"
261 setup_kfail_for_target gdb/12783 "i?86-*-*"
262 setup_kfail_for_target gdb/12796 "x86_64-*-*"
263 setup_kfail_for_target gdb/12797 "arm*-*-*"
264 gdb_test "p t_structs_ldc(struct_val1)" "= 5 \\+ 5 \\* I" \
265 "call inferior func with struct - returns long double _Complex"
268 gdb_test "p t_structs_a(struct_val1)" "= (.unsigned char .. )?\"foo\"" \
269 "call inferior func with struct - returns char *"
272 # Procedure to get current content of all registers.
273 proc fetch_all_registers {test} {
276 set all_registers_lines {}
278 # Former trailing `\[\r\n\]+' may eat just \r leaving \n in the buffer
279 # corrupting the next matches.
280 if {[gdb_test_multiple "info all-registers" $test {
281 -re "info all-registers\r\n" {
284 -ex "The program has no registers now" {
288 -re "^bspstore\[ \t\]+\[^\r\n\]+\r\n" {
289 if [istarget "ia64-*-*"] {
290 # Filter out bspstore which is specially tied to bsp,
291 # giving spurious differences.
293 lappend all_registers_lines $expect_out(0,string)
297 -re "^\[^ \t\]+\[ \t\]+\[^\r\n\]+\r\n" {
298 lappend all_registers_lines $expect_out(0,string)
301 -re "$gdb_prompt $" {
304 -re "^\[^\r\n\]+\r\n" {
306 warning "Unrecognized output: $expect_out(0,string)"
321 return $all_registers_lines
324 proc rerun_and_prepare {} {
325 global hp_aCC_compiler
327 if { $hp_aCC_compiler } {
328 # Do not set language explicitly to 'C'. This will cause aCC
329 # tests to fail because promotion rules are different. Just let
330 # the language be set to the default.
332 if { ![runto_main] } {
336 # However, turn off overload-resolution for aCC. Having it on causes
339 gdb_test_no_output "set overload-resolution 0"
341 gdb_test_no_output "set language c"
342 if { ![runto_main] } {
349 # Make sure that malloc gets called and that the floating point unit
350 # is initialized via a call to t_double_values.
351 gdb_test "next" "t_double_values\\(double_val1, double_val2\\);.*" \
352 "next to t_double_values"
353 gdb_test "next" "t_structs_c\\(struct_val1\\);.*" \
354 "next to t_structs_c"
358 # Start with a fresh gdb.
362 gdb_reinitialize_dir $srcdir/$subdir
365 gdb_test_no_output "set print sevenbit-strings"
366 gdb_test_no_output "set print address off"
367 gdb_test_no_output "set width 0"
371 # Save all register contents.
372 set old_reg_content [fetch_all_registers "retrieve original register contents"]
374 # Perform function calls.
377 # Check if all registers still have the same value.
378 set new_reg_content [fetch_all_registers \
379 "register contents after gdb function calls"]
380 if {$old_reg_content == $new_reg_content} then {
381 pass "gdb function calls preserve register contents"
383 set old_reg_content $new_reg_content
384 fail "gdb function calls preserve register contents"
388 # Save all register contents.
389 set old_reg_content [fetch_all_registers "retrieve original register contents"]
391 # Set breakpoint at a function we will call from gdb.
394 # Call function (causing a breakpoint hit in the call dummy) and do a continue,
395 # make sure we are back at main and still have the same register contents.
396 gdb_test "print add(4,5)" \
397 "The program being debugged stopped while.*" \
398 "stop at breakpoint in call dummy function"
399 gdb_test "continue" "Continuing.*" "continue from call dummy breakpoint"
400 if ![gdb_test "bt 2" \
402 "bt after continuing from call dummy breakpoint"] then {
403 set new_reg_content [fetch_all_registers \
404 "register contents after stop in call dummy"]
405 if {$old_reg_content == $new_reg_content} then {
406 pass "continue after stop in call dummy preserves register contents"
408 fail "continue after stop in call dummy preserves register contents"
413 # Set breakpoint at a function we will call from gdb.
415 # Save all register contents.
416 set old_reg_content [fetch_all_registers "retrieve original register contents"]
418 # Call function (causing a breakpoint hit in the call dummy) and do a finish,
419 # make sure we are back at main and still have the same register contents.
420 gdb_test "print add(4,5)" "The program being debugged stopped while.*" \
421 "call function causing a breakpoint then do a finish"
423 "Value returned is .* = 9" \
424 "finish from call dummy breakpoint returns correct value"
425 if ![gdb_test "bt 2" \
427 "bt after finishing from call dummy breakpoint"] then {
428 set new_reg_content [fetch_all_registers \
429 "register contents after finish in call dummy"]
430 if {$old_reg_content == $new_reg_content} then {
431 pass "finish after stop in call dummy preserves register contents"
433 fail "finish after stop in call dummy preserves register contents"
438 # Set breakpoint at a function we will call from gdb.
440 # Save all register contents.
441 set old_reg_content [fetch_all_registers "retrieve original register contents"]
443 # Call function (causing a breakpoint hit in the call dummy) and do a return
444 # with a value, make sure we are back at main with the same register contents.
445 gdb_test "print add(4,5)" "The program being debugged stopped while.*" \
446 "call function causing a breakpoint and then do a return"
447 if ![gdb_test "return 7" \
449 "back at main after return from call dummy breakpoint" \
450 "Make add return now. .y or n.*" \
452 set new_reg_content [fetch_all_registers \
453 "register contents after return in call dummy"]
454 if {$old_reg_content == $new_reg_content} then {
455 pass "return after stop in call dummy preserves register contents"
457 fail "return after stop in call dummy preserves register contents"
462 # Set breakpoint at a function we will call from gdb.
464 set old_reg_content [fetch_all_registers "retrieve original register contents"]
466 # Call function (causing a breakpoint hit in the call dummy), and
467 # call another function from the call dummy frame (thereby setting up
468 # several nested call dummy frames). Test that backtrace and finish
469 # work when several call dummies are nested.
471 gdb_breakpoint t_small_values
472 gdb_test "print add(2,3)" "The program being debugged stopped while.*" \
473 "stop at nested call level 1"
474 gdb_test "backtrace" \
475 "\#0 add \\(a=2, b=3\\).*\#1 <function called from gdb>.*\#2 main.*" \
476 "backtrace at nested call level 1"
477 gdb_test "print add(4,5)" "The program being debugged stopped while.*" \
478 "stop at nested call level 2"
479 gdb_test "backtrace" \
480 "\#0 add \\(a=4, b=5\\).*\#1 <function called from gdb>.*\#2 add \\(a=2, b=3\\).*\#3 <function called from gdb>.*\#4 main.*" \
481 "backtrace at nested call level 2"
482 gdb_test "print sum10(2,4,6,8,10,12,14,16,18,20)" \
483 "The program being debugged stopped while.*" \
484 "stop at nested call level 3"
485 gdb_test "backtrace" \
486 "\#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.*" \
487 "backtrace at nested call level 3"
488 gdb_test "print t_small_values(1,3,5,7,9,11,13,15,17,19)" \
489 "The program being debugged stopped while.*" \
490 "stop at nested call level 4"
491 gdb_test "backtrace" \
492 "\#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.*" \
493 "backtrace at nested call level 4"
494 gdb_test "finish" "Value returned is .* = 100" \
495 "Finish from nested call level 4"
496 gdb_test "backtrace" \
497 "\#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.*" \
498 "backtrace after finish from nested call level 4"
499 gdb_test "finish" "Value returned is .* = 110" \
500 "Finish from nested call level 3"
501 gdb_test "backtrace" \
502 "\#0 add \\(a=4, b=5\\).*\#1 <function called from gdb>.*\#2 add \\(a=2, b=3\\).*\#3 <function called from gdb>.*\#4 main.*" \
503 "backtrace after finish from nested call level 3"
504 gdb_test "finish" "Value returned is .* = 9" \
505 "Finish from nested call level 2"
506 gdb_test "backtrace" \
507 "\#0 add \\(a=2, b=3\\).*\#1 <function called from gdb>.*\#2 main.*" \
508 "backtrace after finish from nested call level 2"
509 gdb_test "finish" "Value returned is .* = 5" \
510 "Finish from nested call level 1"
511 gdb_test "backtrace" "\#0 main .*" \
512 "backtrace after finish from nested call level 1"
514 set new_reg_content [fetch_all_registers \
515 "register contents after nested call dummies"]
516 if {$old_reg_content == $new_reg_content} then {
517 pass "nested call dummies preserve register contents"
519 fail "nested call dummies preserve register contents"
522 # GDB should not crash by internal error on $sp underflow during the inferior
523 # call. It is OK it will stop on some: Cannot access memory at address 0x$hex.
525 if {![target_info exists gdb,nosignals] && ![istarget "*-*-uclinux*"]} {
526 gdb_test {set $old_sp = $sp}
528 gdb_test {set $sp = 0}
529 gdb_test "call doubleit (1)" ".*" "sp == 0: call doubleit (1)"
531 gdb_test {set $sp = -1}
532 gdb_test "call doubleit (1)" ".*" "sp == -1: call doubleit (1)"
534 gdb_test {set $sp = $old_sp}
537 # Test function descriptor resolution - the separate debug info .opd section
538 # handling vs. local labels `.L'... as `Lcallfunc' starts with `L'.
540 gdb_test "print callfunc (Lcallfunc, 5)" " = 12"