1 # Copyright 1992, 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003,
2 # 2004, 2007 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 untested callfuncs.exp
40 # Create and source the file that provides information about the compiler
41 # used to compile the test case.
43 if [get_compiler_info ${binfile}] {
47 if {$hp_aCC_compiler} {
53 # Some targets can't do function calls, so don't even bother with this
55 if [target_info exists gdb,cannot_call_functions] {
56 setup_xfail "*-*-*" 2416
57 fail "This target can not call functions"
61 # Set the current language to C. This counts as a test. If it
62 # fails, then we skip the other tests.
67 send_gdb "set language c\n"
69 -re ".*$gdb_prompt $" {}
70 timeout { fail "set language c (timeout)" ; return 0; }
73 send_gdb "show language\n"
75 -re ".* source language is \"c\".*$gdb_prompt $" {
76 pass "set language to \"c\""
79 -re ".*$gdb_prompt $" {
80 fail "setting language to \"c\""
84 fail "can't show language (timeout)"
90 # FIXME: Before calling this proc, we should probably verify that
91 # we can call inferior functions and get a valid integral value
93 # Note that it is OK to check for 0 or 1 as the returned values, because C
94 # specifies that the numeric value of a relational or logical expression
95 # (computed in the inferior) is 1 for true and 0 for false.
97 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 gdb_test "p t_float_values2(0.0,0.0)" " = 0"
148 # Although PR 5318 mentions SunOS specifically, this seems
149 # to be a generic problem on quite a few platforms.
150 if $prototypes then {
151 setup_xfail "sparc-*-*" "mips*-*-*" 5318
152 if { ! [test_compiler_info gcc-*-*] } then {
153 setup_xfail "alpha-dec-osf2*" "i*86-*-sysv4*" 5318
157 gdb_test "p t_float_values2(3.14159,float_val2)" " = 1"
159 gdb_test "p t_small_values(1,2,3,4,5,6,7,8,9,10)" " = 55"
161 gdb_test "p t_double_values(0.0,0.0)" " = 0"
162 gdb_test "p t_double_values(45.654,-67.66)" " = 1"
163 gdb_test "p t_double_values(double_val1,double_val2)" " = 1"
164 gdb_test "p t_double_values(45.654,double_val2)" " = 1"
165 gdb_test "p t_double_values(double_val1,-67.66)" " = 1"
168 gdb_test "p t_string_values(string_val2,string_val1)" " = 0"
169 gdb_test "p t_string_values(string_val1,string_val2)" " = 1"
170 gdb_test "p t_string_values(\"string 1\",\"string 2\")" " = 1"
171 gdb_test "p t_string_values(\"string 1\",string_val2)" " = 1"
172 gdb_test "p t_string_values(string_val1,\"string 2\")" " = 1"
174 gdb_test "p t_char_array_values(char_array_val2,char_array_val1)" " = 0"
175 gdb_test "p t_char_array_values(char_array_val1,char_array_val2)" " = 1"
176 gdb_test "p t_char_array_values(\"carray 1\",\"carray 2\")" " = 1"
177 gdb_test "p t_char_array_values(\"carray 1\",char_array_val2)" " = 1"
178 gdb_test "p t_char_array_values(char_array_val1,\"carray 2\")" " = 1"
180 gdb_test "p doubleit(4)" " = 8"
181 gdb_test "p add(4,5)" " = 9"
182 gdb_test "p t_func_values(func_val2,func_val1)" " = 0"
183 gdb_test "p t_func_values(func_val1,func_val2)" " = 1"
185 # GDB currently screws up the passing of function parameters for
186 # ABIs that use function descriptors. Instead of passing the
187 # address of te function descriptor, GDB passes the address of the
188 # function body. This results in the called function treating the
189 # first few instructions of the function proper as a descriptor
190 # and attempting a jump through that (a totally random address).
191 setup_kfail "rs6000*-*-aix*" gdb/1457
192 setup_kfail "powerpc*-*-aix*" gdb/1457
193 setup_kfail hppa*-*-hpux* gdb/1457
194 gdb_test "p t_func_values(add,func_val2)" " = 1"
195 setup_kfail "rs6000*-*-aix*" gdb/1457
196 setup_kfail "powerpc*-*-aix*" gdb/1457
197 setup_kfail hppa*-*-hpux* gdb/1457
198 gdb_test "p t_func_values(func_val1,doubleit)" " = 1"
199 setup_kfail "rs6000*-*-aix*" gdb/1457
200 setup_kfail "powerpc*-*-aix*" gdb/1457
201 setup_kfail hppa*-*-hpux* gdb/1457
202 gdb_test "p t_call_add(add,3,4)" " = 7"
203 gdb_test "p t_call_add(func_val1,3,4)" " = 7"
205 gdb_test "p t_enum_value1(enumval1)" " = 1"
206 gdb_test "p t_enum_value1(enum_val1)" " = 1"
207 gdb_test "p t_enum_value1(enum_val2)" " = 0"
209 gdb_test "p t_enum_value2(enumval2)" " = 1"
210 gdb_test "p t_enum_value2(enum_val2)" " = 1"
211 gdb_test "p t_enum_value2(enum_val1)" " = 0"
213 gdb_test "p sum_args(1,{2})" " = 2"
214 gdb_test "p sum_args(2,{2,3})" " = 5"
215 gdb_test "p sum_args(3,{2,3,4})" " = 9"
216 gdb_test "p sum_args(4,{2,3,4,5})" " = 14"
218 gdb_test "p sum10 (1, 2, 3, 4, 5, 6, 7, 8, 9, 10)" " = 55"
220 gdb_test "p cmp10 (0, 1, 2, 3, 4, 5, 6, 7, 8, 9)" " = 1"
222 gdb_test "p t_structs_c(struct_val1)" "= 120 'x'" \
223 "call inferior func with struct - returns char"
224 gdb_test "p t_structs_s(struct_val1)" "= 87" \
225 "call inferior func with struct - returns short"
226 gdb_test "p t_structs_i(struct_val1)" "= 76" \
227 "call inferior func with struct - returns int"
228 gdb_test "p t_structs_l(struct_val1)" "= 51" \
229 "call inferior func with struct - returns long"
230 gdb_test "p t_structs_f(struct_val1)" "= 2.12.*" \
231 "call inferior func with struct - returns float"
232 gdb_test "p t_structs_d(struct_val1)" "= 9.87.*" \
233 "call inferior func with struct - returns double"
234 gdb_test "p t_structs_a(struct_val1)" "= (.unsigned char .. )?\"foo\"" \
235 "call inferior func with struct - returns char *"
238 # Procedure to get current content of all registers.
239 proc fetch_all_registers {test} {
242 set all_registers_lines {}
244 if {[gdb_test_multiple "info all-registers" $test {
245 -re "info all-registers\[\r\n\]+" {
248 -ex "The program has no registers now" {
252 -re "^bspstore\[ \t\]+\[^\r\n\]+\[\r\n\]+" {
253 if [istarget "ia64-*-*"] {
254 # Filter out bspstore which is specially tied to bsp,
255 # giving spurious differences.
257 lappend all_registers_lines $expect_out(0,string)
261 -re "^\[^ \t\]+\[ \t\]+\[^\r\n\]+\[\r\n\]+" {
262 lappend all_registers_lines $expect_out(0,string)
265 -re ".*$gdb_prompt $" {
268 -re "^\[^\r\n\]+\[\r\n\]+" {
270 warning "Unrecognized output: $expect_out(0,string)"
285 return $all_registers_lines
289 # Start with a fresh gdb.
293 gdb_reinitialize_dir $srcdir/$subdir
296 gdb_test "set print sevenbit-strings" ""
297 gdb_test "set print address off" ""
298 gdb_test "set width 0" ""
300 if { $hp_aCC_compiler } {
301 # Do not set language explicitly to 'C'. This will cause aCC
302 # tests to fail because promotion rules are different. Just let
303 # the language be set to the default.
305 if { ![runto_main] } {
309 # However, turn off overload-resolution for aCC. Having it on causes
312 gdb_test "set overload-resolution 0" ".*"
314 if { ![set_lang_c] } {
317 if { ![runto_main] } {
325 # Make sure that malloc gets called and that the floating point unit
326 # is initialized via a call to t_double_values.
327 gdb_test "next" "t_double_values\\(double_val1, double_val2\\);.*" \
328 "next to t_double_values"
329 gdb_test "next" "t_structs_c\\(struct_val1\\);.*" \
330 "next to t_structs_c"
332 # Save all register contents.
333 set old_reg_content [fetch_all_registers "retrieve original register contents"]
335 # Perform function calls.
338 # Check if all registers still have the same value.
339 set new_reg_content [fetch_all_registers \
340 "register contents after gdb function calls"]
341 if {$old_reg_content == $new_reg_content} then {
342 pass "gdb function calls preserve register contents"
344 set old_reg_content $new_reg_content
345 fail "gdb function calls preserve register contents"
348 # Set breakpoint at a function we will call from gdb.
351 # Call function (causing a breakpoint hit in the call dummy) and do a continue,
352 # make sure we are back at main and still have the same register contents.
353 gdb_test "print add(4,5)" \
354 "The program being debugged stopped while.*" \
355 "stop at breakpoint in call dummy function"
356 gdb_test "continue" "Continuing.*" "continue from call dummy breakpoint"
357 if ![gdb_test "bt 2" \
359 "bt after continuing from call dummy breakpoint"] then {
360 set new_reg_content [fetch_all_registers \
361 "register contents after stop in call dummy"]
362 if {$old_reg_content == $new_reg_content} then {
363 pass "continue after stop in call dummy preserves register contents"
365 fail "continue after stop in call dummy preserves register contents"
369 # Call function (causing a breakpoint hit in the call dummy) and do a finish,
370 # make sure we are back at main and still have the same register contents.
371 gdb_test "print add(4,5)" "The program being debugged stopped while.*" \
372 "call function causing a breakpoint then do a finish"
374 "Value returned is .* = 9" \
375 "finish from call dummy breakpoint returns correct value"
376 if ![gdb_test "bt 2" \
378 "bt after finishing from call dummy breakpoint"] then {
379 set new_reg_content [fetch_all_registers \
380 "register contents after finish in call dummy"]
381 if {$old_reg_content == $new_reg_content} then {
382 pass "finish after stop in call dummy preserves register contents"
384 fail "finish after stop in call dummy preserves register contents"
388 # Call function (causing a breakpoint hit in the call dummy) and do a return
389 # with a value, make sure we are back at main with the same register contents.
390 gdb_test "print add(4,5)" "The program being debugged stopped while.*" \
391 "call function causing a breakpoint and then do a return"
392 if ![gdb_test "return 7" \
394 "back at main after return from call dummy breakpoint" \
395 "Make add return now. .y or n.*" \
397 set new_reg_content [fetch_all_registers \
398 "register contents after return in call dummy"]
399 if {$old_reg_content == $new_reg_content} then {
400 pass "return after stop in call dummy preserves register contents"
402 fail "return after stop in call dummy preserves register contents"
406 # Call function (causing a breakpoint hit in the call dummy), and
407 # call another function from the call dummy frame (thereby setting up
408 # several nested call dummy frames). Test that backtrace and finish
409 # work when several call dummies are nested.
411 gdb_breakpoint t_small_values
412 gdb_test "print add(2,3)" "The program being debugged stopped while.*" \
413 "stop at nested call level 1"
414 gdb_test "backtrace" \
415 "\#0 add \\(a=2, b=3\\).*\#1 <function called from gdb>.*\#2 main.*" \
416 "backtrace at nested call level 1"
417 gdb_test "print add(4,5)" "The program being debugged stopped while.*" \
418 "stop at nested call level 2"
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 at nested call level 2"
422 gdb_test "print sum10(2,4,6,8,10,12,14,16,18,20)" \
423 "The program being debugged stopped while.*" \
424 "stop at nested call level 3"
425 gdb_test "backtrace" \
426 "\#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.*" \
427 "backtrace at nested call level 3"
428 gdb_test "print t_small_values(1,3,5,7,9,11,13,15,17,19)" \
429 "The program being debugged stopped while.*" \
430 "stop at nested call level 4"
431 gdb_test "backtrace" \
432 "\#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.*" \
433 "backtrace at nested call level 4"
434 gdb_test "finish" "Value returned is .* = 100" \
435 "Finish from nested call level 4"
436 gdb_test "backtrace" \
437 "\#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.*" \
438 "backtrace after finish from nested call level 4"
439 gdb_test "finish" "Value returned is .* = 110" \
440 "Finish from nested call level 3"
441 gdb_test "backtrace" \
442 "\#0 add \\(a=4, b=5\\).*\#1 <function called from gdb>.*\#2 add \\(a=2, b=3\\).*\#3 <function called from gdb>.*\#4 main.*" \
443 "backtrace after finish from nested call level 3"
444 gdb_test "finish" "Value returned is .* = 9" \
445 "Finish from nested call level 2"
446 gdb_test "backtrace" \
447 "\#0 add \\(a=2, b=3\\).*\#1 <function called from gdb>.*\#2 main.*" \
448 "backtrace after finish from nested call level 2"
449 gdb_test "finish" "Value returned is .* = 5" \
450 "Finish from nested call level 1"
451 gdb_test "backtrace" "\#0 main .*" \
452 "backtrace after finish from nested call level 1"
454 set new_reg_content [fetch_all_registers \
455 "register contents after nested call dummies"]
456 if {$old_reg_content == $new_reg_content} then {
457 pass "nested call dummies preserve register contents"
459 fail "nested call dummies preserve register contents"