1 # Copyright 1992, 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001
2 # 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 2 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, write to the Free Software
16 # Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
18 # Please email any bugs, comments, and/or additions to this file to:
19 # bug-gdb@prep.ai.mit.edu
21 # This file was written by Fred Fish. (fnf@cygnus.com)
22 # and modified by Bob Manson. (manson@cygnus.com)
31 set testfile "callfuncs"
32 set srcfile ${testfile}.c
33 set binfile ${objdir}/${subdir}/${testfile}
35 if { [gdb_compile "${srcdir}/${subdir}/${srcfile}" "${binfile}" executable {debug}] != "" } {
36 gdb_suppress_entire_file "Testcase compile failed, so all tests in this file will automatically fail."
39 # Create and source the file that provides information about the compiler
40 # used to compile the test case.
42 if [get_compiler_info ${binfile}] {
46 if {$hp_aCC_compiler} {
52 # Some targets can't do function calls, so don't even bother with this
54 if [target_info exists gdb,cannot_call_functions] {
55 setup_xfail "*-*-*" 2416
56 fail "This target can not call functions"
60 # Set the current language to C. This counts as a test. If it
61 # fails, then we skip the other tests.
66 send_gdb "set language c\n"
68 -re ".*$gdb_prompt $" {}
69 timeout { fail "set language c (timeout)" ; return 0; }
72 send_gdb "show language\n"
74 -re ".* source language is \"c\".*$gdb_prompt $" {
75 pass "set language to \"c\""
78 -re ".*$gdb_prompt $" {
79 fail "setting language to \"c\""
83 fail "can't show language (timeout)"
89 # FIXME: Before calling this proc, we should probably verify that
90 # we can call inferior functions and get a valid integral value
92 # Note that it is OK to check for 0 or 1 as the returned values, because C
93 # specifies that the numeric value of a relational or logical expression
94 # (computed in the inferior) is 1 for true and 0 for false.
96 proc do_function_calls {} {
101 # We need to up this because this can be really slow on some boards.
104 gdb_test "p t_char_values(0,0)" " = 0"
105 gdb_test "p t_char_values('a','b')" " = 1"
106 gdb_test "p t_char_values(char_val1,char_val2)" " = 1"
107 gdb_test "p t_char_values('a',char_val2)" " = 1"
108 gdb_test "p t_char_values(char_val1,'b')" " = 1"
110 gdb_test "p t_short_values(0,0)" " = 0"
111 gdb_test "p t_short_values(10,-23)" " = 1"
112 gdb_test "p t_short_values(short_val1,short_val2)" " = 1"
113 gdb_test "p t_short_values(10,short_val2)" " = 1"
114 gdb_test "p t_short_values(short_val1,-23)" " = 1"
116 gdb_test "p t_int_values(0,0)" " = 0"
117 gdb_test "p t_int_values(87,-26)" " = 1"
118 gdb_test "p t_int_values(int_val1,int_val2)" " = 1"
119 gdb_test "p t_int_values(87,int_val2)" " = 1"
120 gdb_test "p t_int_values(int_val1,-26)" " = 1"
122 gdb_test "p t_long_values(0,0)" " = 0"
123 gdb_test "p t_long_values(789,-321)" " = 1"
124 gdb_test "p t_long_values(long_val1,long_val2)" " = 1"
125 gdb_test "p t_long_values(789,long_val2)" " = 1"
126 gdb_test "p t_long_values(long_val1,-321)" " = 1"
128 if ![target_info exists gdb,skip_float_tests] {
129 gdb_test "p t_float_values(0.0,0.0)" " = 0"
131 # These next four tests fail on the mn10300.
132 # The first value is passed in regs, the other in memory.
133 # Gcc emits different stabs for the two parameters; the first is
134 # claimed to be a float, the second a double.
135 # dbxout.c in gcc claims this is the desired behavior.
136 setup_xfail "mn10300-*-*"
137 gdb_test "p t_float_values(3.14159,-2.3765)" " = 1"
138 setup_xfail "mn10300-*-*"
139 gdb_test "p t_float_values(float_val1,float_val2)" " = 1"
140 setup_xfail "mn10300-*-*"
141 gdb_test "p t_float_values(3.14159,float_val2)" " = 1"
142 setup_xfail "mn10300-*-*"
143 gdb_test "p t_float_values(float_val1,-2.3765)" " = 1"
145 # Test passing of arguments which might not be widened.
146 # Under stabs, GCC doesn't tell us whether the function was
148 if {$gcc_compiled} { setup_xfail_format "stabs" }
149 gdb_test "p t_float_values2(0.0,0.0)" " = 0"
151 # Although PR 5318 mentions SunOS specifically, this seems
152 # to be a generic problem on quite a few platforms.
153 if $prototypes then {
154 setup_xfail "sparc-*-*" "mips*-*-*" 5318
155 if {!$gcc_compiled} then {
156 setup_xfail "alpha-dec-osf2*" "i*86-*-sysv4*" 5318
160 # Under stabs, GCC doesn't tell us whether the function was
162 if {$gcc_compiled} { setup_xfail_format "stabs" }
163 gdb_test "p t_float_values2(3.14159,float_val2)" " = 1"
165 gdb_test "p t_small_values(1,2,3,4,5,6,7,8,9,10)" " = 55"
167 gdb_test "p t_double_values(0.0,0.0)" " = 0"
168 gdb_test "p t_double_values(45.654,-67.66)" " = 1"
169 gdb_test "p t_double_values(double_val1,double_val2)" " = 1"
170 gdb_test "p t_double_values(45.654,double_val2)" " = 1"
171 gdb_test "p t_double_values(double_val1,-67.66)" " = 1"
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 # On the rs6000, we need to pass the address of the trampoline routine,
192 # not the address of add itself. I don't know how to go from add to
193 # the address of the trampoline. Similar problems exist on the HPPA,
194 # and in fact can present an unsolvable problem as the stubs may not
195 # even exist in the user's program. We've slightly recoded t_func_values
196 # to avoid such problems in the common case. This may or may not help
198 setup_xfail "rs6000*-*-*"
199 setup_xfail "powerpc*-*-*"
200 if {![istarget hppa*-*-hpux*]} then {
201 gdb_test "p t_func_values(add,func_val2)" " = 1"
204 setup_xfail "rs6000*-*-*"
205 setup_xfail "powerpc*-*-*"
206 if {![istarget hppa*-*-hpux*]} then {
207 gdb_test "p t_func_values(func_val1,doubleit)" " = 1"
210 setup_xfail "rs6000*-*-*"
211 setup_xfail "powerpc*-*-*"
212 if {![istarget hppa*-*-hpux*]} then {
213 gdb_test "p t_call_add(add,3,4)" " = 7"
215 gdb_test "p t_call_add(func_val1,3,4)" " = 7"
217 gdb_test "p t_enum_value1(enumval1)" " = 1"
218 gdb_test "p t_enum_value1(enum_val1)" " = 1"
219 gdb_test "p t_enum_value1(enum_val2)" " = 0"
221 gdb_test "p t_enum_value2(enumval2)" " = 1"
222 gdb_test "p t_enum_value2(enum_val2)" " = 1"
223 gdb_test "p t_enum_value2(enum_val1)" " = 0"
225 gdb_test "p sum_args(1,{2})" " = 2"
226 gdb_test "p sum_args(2,{2,3})" " = 5"
227 gdb_test "p sum_args(3,{2,3,4})" " = 9"
228 gdb_test "p sum_args(4,{2,3,4,5})" " = 14"
230 gdb_test "p sum10 (1, 2, 3, 4, 5, 6, 7, 8, 9, 10)" " = 55"
232 gdb_test "p cmp10 (0, 1, 2, 3, 4, 5, 6, 7, 8, 9)" " = 1"
234 gdb_test "p t_structs_c(struct_val1)" "= 120 'x'" \
235 "call inferior func with struct - returns char"
236 gdb_test "p t_structs_s(struct_val1)" "= 87" \
237 "call inferior func with struct - returns short"
238 gdb_test "p t_structs_i(struct_val1)" "= 76" \
239 "call inferior func with struct - returns int"
240 gdb_test "p t_structs_l(struct_val1)" "= 51" \
241 "call inferior func with struct - returns long"
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"
246 gdb_test "p t_structs_a(struct_val1)" "= (.unsigned char .. )?\"foo\"" \
247 "call inferior func with struct - returns char *"
250 # Procedure to get current content of all registers.
251 global all_registers_content
252 set all_registers_content ""
253 proc do_get_all_registers { } {
256 global all_registers_content
258 set all_registers_content ""
259 send_gdb "info all-registers\n"
261 -re "info all-registers\r\n(.*)$gdb_prompt $" {
262 set all_registers_content $expect_out(1,string)
268 # Start with a fresh gdb.
272 gdb_reinitialize_dir $srcdir/$subdir
275 gdb_test "set print sevenbit-strings" ""
276 gdb_test "set print address off" ""
277 gdb_test "set width 0" ""
279 if { $hp_aCC_compiler } {
280 # Do not set language explicitly to 'C'. This will cause aCC
281 # tests to fail because promotion rules are different. Just let
282 # the language be set to the default.
284 if { ![runto_main] } {
288 # However, turn off overload-resolution for aCC. Having it on causes
291 gdb_test "set overload-resolution 0" ".*"
293 if { ![set_lang_c] } {
296 if { ![runto_main] } {
304 # Make sure that malloc gets called and that the floating point unit
305 # is initialized via a call to t_double_values.
306 gdb_test "next" "t_double_values\\(double_val1, double_val2\\);.*" \
307 "next to t_double_values"
308 gdb_test "next" "t_structs_c\\(struct_val1\\);.*" \
309 "next to t_structs_c"
311 # Save all register contents.
313 set old_reg_content $all_registers_content
315 # Perform function calls.
318 # Check if all registers still have the same value.
320 set new_reg_content $all_registers_content
321 if ![string compare $old_reg_content $new_reg_content] then {
322 pass "gdb function calls preserve register contents"
324 set old_reg_content $all_registers_content
325 fail "gdb function calls preserve register contents"
328 # Set breakpoint at a function we will call from gdb.
331 # Call function (causing a breakpoint hit in the call dummy) and do a continue,
332 # make sure we are back at main and still have the same register contents.
333 gdb_test "print add(4,5)" \
334 "The program being debugged stopped while.*" \
335 "stop at breakpoint in call dummy function"
336 gdb_test "continue" "Continuing.*" "continue from call dummy breakpoint"
337 if ![gdb_test "bt 2" \
339 "bt after continuing from call dummy breakpoint"] then {
341 set new_reg_content $all_registers_content
342 if ![string compare $old_reg_content $new_reg_content] then {
343 pass "continue after stop in call dummy preserves register contents"
345 fail "continue after stop in call dummy preserves register contents"
349 # Call function (causing a breakpoint hit in the call dummy) and do a finish,
350 # make sure we are back at main and still have the same register contents.
351 gdb_test "print add(4,5)" "The program being debugged stopped while.*" ""
353 "Value returned is .* = 9" \
354 "finish from call dummy breakpoint returns correct value"
355 if ![gdb_test "bt 2" \
357 "bt after finishing from call dummy breakpoint"] then {
359 set new_reg_content $all_registers_content
360 if ![string compare $old_reg_content $new_reg_content] then {
361 pass "finish after stop in call dummy preserves register contents"
363 fail "finish after stop in call dummy preserves register contents"
367 # Call function (causing a breakpoint hit in the call dummy) and do a return
368 # with a value, make sure we are back at main with the same register contents.
369 gdb_test "print add(4,5)" "The program being debugged stopped while.*" ""
370 if ![gdb_test "return 7" \
372 "back at main after return from call dummy breakpoint" \
373 "Make add return now. .y or n.*" \
376 set new_reg_content $all_registers_content
377 if ![string compare $old_reg_content $new_reg_content] then {
378 pass "return after stop in call dummy preserves register contents"
380 fail "return after stop in call dummy preserves register contents"
384 # Call function (causing a breakpoint hit in the call dummy), and
385 # call another function from the call dummy frame (thereby setting up
386 # several nested call dummy frames). Test that backtrace and finish
387 # work when several call dummies are nested.
389 gdb_breakpoint t_small_values
390 gdb_test "print add(2,3)" "The program being debugged stopped while.*" \
391 "stop at nested call level 1"
392 gdb_test "backtrace" \
393 "\#0 add \\(a=2, b=3\\).*\#1 <function called from gdb>.*\#2 main.*" \
394 "backtrace at nested call level 1"
395 gdb_test "print add(4,5)" "The program being debugged stopped while.*" \
396 "stop at nested call level 2"
397 gdb_test "backtrace" \
398 "\#0 add \\(a=4, b=5\\).*\#1 <function called from gdb>.*\#2 add \\(a=2, b=3\\).*\#3 <function called from gdb>.*\#4 main.*" \
399 "backtrace at nested call level 2"
400 gdb_test "print sum10(2,4,6,8,10,12,14,16,18,20)" \
401 "The program being debugged stopped while.*" \
402 "stop at nested call level 3"
403 gdb_test "backtrace" \
404 "\#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.*" \
405 "backtrace at nested call level 3"
406 gdb_test "print t_small_values(1,3,5,7,9,11,13,15,17,19)" \
407 "The program being debugged stopped while.*" \
408 "stop at nested call level 4"
409 gdb_test "backtrace" \
410 "\#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.*" \
411 "backtrace at nested call level 4"
412 gdb_test "finish" "Value returned is .* = 100" \
413 "Finish from nested call level 4"
414 gdb_test "backtrace" \
415 "\#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.*" \
416 "backtrace after finish from nested call level 4"
417 gdb_test "finish" "Value returned is .* = 110" \
418 "Finish from nested call level 3"
419 gdb_test "backtrace" \
420 "\#0 add \\(a=4, b=5\\).*\#1 <function called from gdb>.*\#2 add \\(a=2, b=3\\).*\#3 <function called from gdb>.*\#4 main.*" \
421 "backtrace after finish from nested call level 3"
422 gdb_test "finish" "Value returned is .* = 9" \
423 "Finish from nested call level 2"
424 gdb_test "backtrace" \
425 "\#0 add \\(a=2, b=3\\).*\#1 <function called from gdb>.*\#2 main.*" \
426 "backtrace after finish from nested call level 2"
427 gdb_test "finish" "Value returned is .* = 5" \
428 "Finish from nested call level 1"
429 gdb_test "backtrace" "\#0 main .*" \
430 "backtrace after finish from nested call level 1"
433 set new_reg_content $all_registers_content
434 if ![string compare $old_reg_content $new_reg_content] then {
435 pass "nested call dummies preserve register contents"
437 fail "nested call dummies preserve register contents"