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 # The a29k can't call functions, so don't even bother with this test.
53 if [target_info exists gdb,cannot_call_functions] {
54 setup_xfail "*-*-*" 2416
55 fail "This target can not call functions"
59 # Set the current language to C. This counts as a test. If it
60 # fails, then we skip the other tests.
65 send_gdb "set language c\n"
67 -re ".*$gdb_prompt $" {}
68 timeout { fail "set language c (timeout)" ; return 0; }
71 send_gdb "show language\n"
73 -re ".* source language is \"c\".*$gdb_prompt $" {
74 pass "set language to \"c\""
77 -re ".*$gdb_prompt $" {
78 fail "setting language to \"c\""
82 fail "can't show language (timeout)"
88 # FIXME: Before calling this proc, we should probably verify that
89 # we can call inferior functions and get a valid integral value
91 # Note that it is OK to check for 0 or 1 as the returned values, because C
92 # specifies that the numeric value of a relational or logical expression
93 # (computed in the inferior) is 1 for true and 0 for false.
95 proc do_function_calls {} {
100 # We need to up this because this can be really slow on some boards.
103 gdb_test "p t_char_values(0,0)" " = 0"
104 gdb_test "p t_char_values('a','b')" " = 1"
105 gdb_test "p t_char_values(char_val1,char_val2)" " = 1"
106 gdb_test "p t_char_values('a',char_val2)" " = 1"
107 gdb_test "p t_char_values(char_val1,'b')" " = 1"
109 gdb_test "p t_short_values(0,0)" " = 0"
110 gdb_test "p t_short_values(10,-23)" " = 1"
111 gdb_test "p t_short_values(short_val1,short_val2)" " = 1"
112 gdb_test "p t_short_values(10,short_val2)" " = 1"
113 gdb_test "p t_short_values(short_val1,-23)" " = 1"
115 gdb_test "p t_int_values(0,0)" " = 0"
116 gdb_test "p t_int_values(87,-26)" " = 1"
117 gdb_test "p t_int_values(int_val1,int_val2)" " = 1"
118 gdb_test "p t_int_values(87,int_val2)" " = 1"
119 gdb_test "p t_int_values(int_val1,-26)" " = 1"
121 gdb_test "p t_long_values(0,0)" " = 0"
122 gdb_test "p t_long_values(789,-321)" " = 1"
123 gdb_test "p t_long_values(long_val1,long_val2)" " = 1"
124 gdb_test "p t_long_values(789,long_val2)" " = 1"
125 gdb_test "p t_long_values(long_val1,-321)" " = 1"
127 if ![target_info exists gdb,skip_float_tests] {
128 gdb_test "p t_float_values(0.0,0.0)" " = 0"
130 # These next four tests fail on the mn10300.
131 # The first value is passed in regs, the other in memory.
132 # Gcc emits different stabs for the two parameters; the first is
133 # claimed to be a float, the second a double.
134 # dbxout.c in gcc claims this is the desired behavior.
135 setup_xfail "mn10300-*-*"
136 gdb_test "p t_float_values(3.14159,-2.3765)" " = 1"
137 setup_xfail "mn10300-*-*"
138 gdb_test "p t_float_values(float_val1,float_val2)" " = 1"
139 setup_xfail "mn10300-*-*"
140 gdb_test "p t_float_values(3.14159,float_val2)" " = 1"
141 setup_xfail "mn10300-*-*"
142 gdb_test "p t_float_values(float_val1,-2.3765)" " = 1"
144 # Test passing of arguments which might not be widened.
145 # Under stabs, GCC doesn't tell us whether the function was
147 if {$gcc_compiled} { setup_xfail_format "stabs" }
148 gdb_test "p t_float_values2(0.0,0.0)" " = 0"
150 # Although PR 5318 mentions SunOS specifically, this seems
151 # to be a generic problem on quite a few platforms.
152 if $prototypes then {
153 setup_xfail "sparc-*-*" "mips*-*-*" 5318
154 if {!$gcc_compiled} then {
155 setup_xfail "alpha-dec-osf2*" "i*86-*-sysv4*" 5318
159 # Under stabs, GCC doesn't tell us whether the function was
161 if {$gcc_compiled} { setup_xfail_format "stabs" }
162 gdb_test "p t_float_values2(3.14159,float_val2)" " = 1"
164 gdb_test "p t_small_values(1,2,3,4,5,6,7,8,9,10)" " = 55"
166 gdb_test "p t_double_values(0.0,0.0)" " = 0"
167 gdb_test "p t_double_values(45.654,-67.66)" " = 1"
168 gdb_test "p t_double_values(double_val1,double_val2)" " = 1"
169 gdb_test "p t_double_values(45.654,double_val2)" " = 1"
170 gdb_test "p t_double_values(double_val1,-67.66)" " = 1"
173 gdb_test "p t_string_values(string_val2,string_val1)" " = 0"
174 gdb_test "p t_string_values(string_val1,string_val2)" " = 1"
175 gdb_test "p t_string_values(\"string 1\",\"string 2\")" " = 1"
176 gdb_test "p t_string_values(\"string 1\",string_val2)" " = 1"
177 gdb_test "p t_string_values(string_val1,\"string 2\")" " = 1"
179 gdb_test "p t_char_array_values(char_array_val2,char_array_val1)" " = 0"
180 gdb_test "p t_char_array_values(char_array_val1,char_array_val2)" " = 1"
181 gdb_test "p t_char_array_values(\"carray 1\",\"carray 2\")" " = 1"
182 gdb_test "p t_char_array_values(\"carray 1\",char_array_val2)" " = 1"
183 gdb_test "p t_char_array_values(char_array_val1,\"carray 2\")" " = 1"
185 gdb_test "p doubleit(4)" " = 8"
186 gdb_test "p add(4,5)" " = 9"
187 gdb_test "p t_func_values(func_val2,func_val1)" " = 0"
188 gdb_test "p t_func_values(func_val1,func_val2)" " = 1"
190 # On the rs6000, we need to pass the address of the trampoline routine,
191 # not the address of add itself. I don't know how to go from add to
192 # the address of the trampoline. Similar problems exist on the HPPA,
193 # and in fact can present an unsolvable problem as the stubs may not
194 # even exist in the user's program. We've slightly recoded t_func_values
195 # to avoid such problems in the common case. This may or may not help
197 setup_xfail "rs6000*-*-*"
198 setup_xfail "powerpc*-*-*"
199 if {![istarget hppa*-*-hpux*]} then {
200 gdb_test "p t_func_values(add,func_val2)" " = 1"
203 setup_xfail "rs6000*-*-*"
204 setup_xfail "powerpc*-*-*"
205 if {![istarget hppa*-*-hpux*]} then {
206 gdb_test "p t_func_values(func_val1,doubleit)" " = 1"
209 setup_xfail "rs6000*-*-*"
210 setup_xfail "powerpc*-*-*"
211 if {![istarget hppa*-*-hpux*]} then {
212 gdb_test "p t_call_add(add,3,4)" " = 7"
214 gdb_test "p t_call_add(func_val1,3,4)" " = 7"
216 gdb_test "p t_enum_value1(enumval1)" " = 1"
217 gdb_test "p t_enum_value1(enum_val1)" " = 1"
218 gdb_test "p t_enum_value1(enum_val2)" " = 0"
220 gdb_test "p t_enum_value2(enumval2)" " = 1"
221 gdb_test "p t_enum_value2(enum_val2)" " = 1"
222 gdb_test "p t_enum_value2(enum_val1)" " = 0"
224 gdb_test "p sum_args(1,{2})" " = 2"
225 gdb_test "p sum_args(2,{2,3})" " = 5"
226 gdb_test "p sum_args(3,{2,3,4})" " = 9"
227 gdb_test "p sum_args(4,{2,3,4,5})" " = 14"
229 gdb_test "p sum10 (1, 2, 3, 4, 5, 6, 7, 8, 9, 10)" " = 55"
231 gdb_test "p cmp10 (0, 1, 2, 3, 4, 5, 6, 7, 8, 9)" " = 1"
233 gdb_test "p t_structs_c(struct_val1)" "= 120 'x'" \
234 "call inferior func with struct - returns char"
235 gdb_test "p t_structs_s(struct_val1)" "= 87" \
236 "call inferior func with struct - returns short"
237 gdb_test "p t_structs_i(struct_val1)" "= 76" \
238 "call inferior func with struct - returns int"
239 gdb_test "p t_structs_l(struct_val1)" "= 51" \
240 "call inferior func with struct - returns long"
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"
245 gdb_test "p t_structs_a(struct_val1)" "= (.unsigned char .. )?\"foo\"" \
246 "call inferior func with struct - returns char *"
249 # Procedure to get current content of all registers.
250 global all_registers_content
251 set all_registers_content ""
252 proc do_get_all_registers { } {
255 global all_registers_content
257 set all_registers_content ""
258 send_gdb "info all-registers\n"
260 -re "info all-registers\r\n(.*)$gdb_prompt $" {
261 set all_registers_content $expect_out(1,string)
267 # Start with a fresh gdb.
271 gdb_reinitialize_dir $srcdir/$subdir
274 gdb_test "set print sevenbit-strings" ""
275 gdb_test "set print address off" ""
276 gdb_test "set width 0" ""
278 if { $hp_aCC_compiler } {
279 # Do not set language explicitly to 'C'. This will cause aCC
280 # tests to fail because promotion rules are different. Just let
281 # the language be set to the default.
283 if { ![runto_main] } {
287 # However, turn off overload-resolution for aCC. Having it on causes
290 gdb_test "set overload-resolution 0" ".*"
292 if { ![set_lang_c] } {
295 if { ![runto_main] } {
303 # Make sure that malloc gets called and that the floating point unit
304 # is initialized via a call to t_double_values.
305 gdb_test "next" "t_double_values\\(double_val1, double_val2\\);.*" \
306 "next to t_double_values"
307 gdb_test "next" "t_structs_c\\(struct_val1\\);.*" \
308 "next to t_structs_c"
310 # Save all register contents.
312 set old_reg_content $all_registers_content
314 # Perform function calls.
317 # Check if all registers still have the same value.
319 set new_reg_content $all_registers_content
320 if ![string compare $old_reg_content $new_reg_content] then {
321 pass "gdb function calls preserve register contents"
323 set old_reg_content $all_registers_content
324 fail "gdb function calls preserve register contents"
327 # Set breakpoint at a function we will call from gdb.
330 # Call function (causing a breakpoint hit in the call dummy) and do a continue,
331 # make sure we are back at main and still have the same register contents.
332 gdb_test "print add(4,5)" \
333 "The program being debugged stopped while.*" \
334 "stop at breakpoint in call dummy function"
335 gdb_test "continue" "Continuing.*" "continue from call dummy breakpoint"
336 if ![gdb_test "bt 2" \
338 "bt after continuing from call dummy breakpoint"] then {
340 set new_reg_content $all_registers_content
341 if ![string compare $old_reg_content $new_reg_content] then {
342 pass "continue after stop in call dummy preserves register contents"
344 fail "continue after stop in call dummy preserves register contents"
348 # Call function (causing a breakpoint hit in the call dummy) and do a finish,
349 # make sure we are back at main and still have the same register contents.
350 gdb_test "print add(4,5)" "The program being debugged stopped while.*" ""
352 "Value returned is .* = 9" \
353 "finish from call dummy breakpoint returns correct value"
354 if ![gdb_test "bt 2" \
356 "bt after finishing from call dummy breakpoint"] then {
358 set new_reg_content $all_registers_content
359 if ![string compare $old_reg_content $new_reg_content] then {
360 pass "finish after stop in call dummy preserves register contents"
362 fail "finish after stop in call dummy preserves register contents"
366 # Call function (causing a breakpoint hit in the call dummy) and do a return
367 # with a value, make sure we are back at main with the same register contents.
368 gdb_test "print add(4,5)" "The program being debugged stopped while.*" ""
369 if ![gdb_test "return 7" \
371 "back at main after return from call dummy breakpoint" \
372 "Make add return now. .y or n.*" \
375 set new_reg_content $all_registers_content
376 if ![string compare $old_reg_content $new_reg_content] then {
377 pass "return after stop in call dummy preserves register contents"
379 fail "return after stop in call dummy preserves register contents"
383 # Call function (causing a breakpoint hit in the call dummy), and
384 # call another function from the call dummy frame (thereby setting up
385 # several nested call dummy frames). Test that backtrace and finish
386 # work when several call dummies are nested.
388 gdb_breakpoint t_small_values
389 gdb_test "print add(2,3)" "The program being debugged stopped while.*" \
390 "stop at nested call level 1"
391 gdb_test "backtrace" \
392 "\#0 add \\(a=2, b=3\\).*\#1 <function called from gdb>.*\#2 main.*" \
393 "backtrace at nested call level 1"
394 gdb_test "print add(4,5)" "The program being debugged stopped while.*" \
395 "stop at nested call level 2"
396 gdb_test "backtrace" \
397 "\#0 add \\(a=4, b=5\\).*\#1 <function called from gdb>.*\#2 add \\(a=2, b=3\\).*\#3 <function called from gdb>.*\#4 main.*" \
398 "backtrace at nested call level 2"
399 gdb_test "print sum10(2,4,6,8,10,12,14,16,18,20)" \
400 "The program being debugged stopped while.*" \
401 "stop at nested call level 3"
402 gdb_test "backtrace" \
403 "\#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.*" \
404 "backtrace at nested call level 3"
405 gdb_test "print t_small_values(1,3,5,7,9,11,13,15,17,19)" \
406 "The program being debugged stopped while.*" \
407 "stop at nested call level 4"
408 gdb_test "backtrace" \
409 "\#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.*" \
410 "backtrace at nested call level 4"
411 gdb_test "finish" "Value returned is .* = 100" \
412 "Finish from nested call level 4"
413 gdb_test "backtrace" \
414 "\#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.*" \
415 "backtrace after finish from nested call level 4"
416 gdb_test "finish" "Value returned is .* = 110" \
417 "Finish from nested call level 3"
418 gdb_test "backtrace" \
419 "\#0 add \\(a=4, b=5\\).*\#1 <function called from gdb>.*\#2 add \\(a=2, b=3\\).*\#3 <function called from gdb>.*\#4 main.*" \
420 "backtrace after finish from nested call level 3"
421 gdb_test "finish" "Value returned is .* = 9" \
422 "Finish from nested call level 2"
423 gdb_test "backtrace" \
424 "\#0 add \\(a=2, b=3\\).*\#1 <function called from gdb>.*\#2 main.*" \
425 "backtrace after finish from nested call level 2"
426 gdb_test "finish" "Value returned is .* = 5" \
427 "Finish from nested call level 1"
428 gdb_test "backtrace" "\#0 main .*" \
429 "backtrace after finish from nested call level 1"
432 set new_reg_content $all_registers_content
433 if ![string compare $old_reg_content $new_reg_content] then {
434 pass "nested call dummies preserve register contents"
436 fail "nested call dummies preserve register contents"