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"
167 gdb_test "p t_double_int(99.0, 1)" " = 0"
168 gdb_test "p t_double_int(99.0, 99)" " = 1"
169 gdb_test "p t_int_double(99, 1.0)" " = 0"
170 gdb_test "p t_int_double(99, 99.0)" " = 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 # GDB currently screws up the passing of function parameters for
191 # ABIs that use function descriptors. Instead of passing the
192 # address of te function descriptor, GDB passes the address of the
193 # function body. This results in the called function treating the
194 # first few instructions of the function proper as a descriptor
195 # and attempting a jump through that (a totally random address).
196 setup_kfail "rs6000*-*-aix*" gdb/1457
197 setup_kfail "powerpc*-*-aix*" gdb/1457
198 setup_kfail hppa*-*-hpux* gdb/1457
199 gdb_test "p t_func_values(add,func_val2)" " = 1"
200 setup_kfail "rs6000*-*-aix*" gdb/1457
201 setup_kfail "powerpc*-*-aix*" gdb/1457
202 setup_kfail hppa*-*-hpux* gdb/1457
203 gdb_test "p t_func_values(func_val1,doubleit)" " = 1"
204 setup_kfail "rs6000*-*-aix*" gdb/1457
205 setup_kfail "powerpc*-*-aix*" gdb/1457
206 setup_kfail hppa*-*-hpux* gdb/1457
207 gdb_test "p t_call_add(add,3,4)" " = 7"
208 gdb_test "p t_call_add(func_val1,3,4)" " = 7"
210 gdb_test "p t_enum_value1(enumval1)" " = 1"
211 gdb_test "p t_enum_value1(enum_val1)" " = 1"
212 gdb_test "p t_enum_value1(enum_val2)" " = 0"
214 gdb_test "p t_enum_value2(enumval2)" " = 1"
215 gdb_test "p t_enum_value2(enum_val2)" " = 1"
216 gdb_test "p t_enum_value2(enum_val1)" " = 0"
218 gdb_test "p sum_args(1,{2})" " = 2"
219 gdb_test "p sum_args(2,{2,3})" " = 5"
220 gdb_test "p sum_args(3,{2,3,4})" " = 9"
221 gdb_test "p sum_args(4,{2,3,4,5})" " = 14"
223 gdb_test "p sum10 (1, 2, 3, 4, 5, 6, 7, 8, 9, 10)" " = 55"
225 gdb_test "p cmp10 (0, 1, 2, 3, 4, 5, 6, 7, 8, 9)" " = 1"
227 gdb_test "p t_structs_c(struct_val1)" "= 120 'x'" \
228 "call inferior func with struct - returns char"
229 gdb_test "p t_structs_s(struct_val1)" "= 87" \
230 "call inferior func with struct - returns short"
231 gdb_test "p t_structs_i(struct_val1)" "= 76" \
232 "call inferior func with struct - returns int"
233 gdb_test "p t_structs_l(struct_val1)" "= 51" \
234 "call inferior func with struct - returns long"
235 gdb_test "p t_structs_f(struct_val1)" "= 2.12.*" \
236 "call inferior func with struct - returns float"
237 gdb_test "p t_structs_d(struct_val1)" "= 9.87.*" \
238 "call inferior func with struct - returns double"
239 gdb_test "p t_structs_a(struct_val1)" "= (.unsigned char .. )?\"foo\"" \
240 "call inferior func with struct - returns char *"
243 # Procedure to get current content of all registers.
244 proc fetch_all_registers {test} {
247 set all_registers_lines {}
249 if {[gdb_test_multiple "info all-registers" $test {
250 -re "info all-registers\[\r\n\]+" {
253 -ex "The program has no registers now" {
257 -re "^bspstore\[ \t\]+\[^\r\n\]+\[\r\n\]+" {
258 if [istarget "ia64-*-*"] {
259 # Filter out bspstore which is specially tied to bsp,
260 # giving spurious differences.
262 lappend all_registers_lines $expect_out(0,string)
266 -re "^\[^ \t\]+\[ \t\]+\[^\r\n\]+\[\r\n\]+" {
267 lappend all_registers_lines $expect_out(0,string)
270 -re ".*$gdb_prompt $" {
273 -re "^\[^\r\n\]+\[\r\n\]+" {
275 warning "Unrecognized output: $expect_out(0,string)"
290 return $all_registers_lines
294 # Start with a fresh gdb.
298 gdb_reinitialize_dir $srcdir/$subdir
301 gdb_test "set print sevenbit-strings" ""
302 gdb_test "set print address off" ""
303 gdb_test "set width 0" ""
305 if { $hp_aCC_compiler } {
306 # Do not set language explicitly to 'C'. This will cause aCC
307 # tests to fail because promotion rules are different. Just let
308 # the language be set to the default.
310 if { ![runto_main] } {
314 # However, turn off overload-resolution for aCC. Having it on causes
317 gdb_test "set overload-resolution 0" ".*"
319 if { ![set_lang_c] } {
322 if { ![runto_main] } {
330 # Make sure that malloc gets called and that the floating point unit
331 # is initialized via a call to t_double_values.
332 gdb_test "next" "t_double_values\\(double_val1, double_val2\\);.*" \
333 "next to t_double_values"
334 gdb_test "next" "t_structs_c\\(struct_val1\\);.*" \
335 "next to t_structs_c"
337 # Save all register contents.
338 set old_reg_content [fetch_all_registers "retrieve original register contents"]
340 # Perform function calls.
343 # Check if all registers still have the same value.
344 set new_reg_content [fetch_all_registers \
345 "register contents after gdb function calls"]
346 if {$old_reg_content == $new_reg_content} then {
347 pass "gdb function calls preserve register contents"
349 set old_reg_content $new_reg_content
350 fail "gdb function calls preserve register contents"
353 # Set breakpoint at a function we will call from gdb.
356 # Call function (causing a breakpoint hit in the call dummy) and do a continue,
357 # make sure we are back at main and still have the same register contents.
358 gdb_test "print add(4,5)" \
359 "The program being debugged stopped while.*" \
360 "stop at breakpoint in call dummy function"
361 gdb_test "continue" "Continuing.*" "continue from call dummy breakpoint"
362 if ![gdb_test "bt 2" \
364 "bt after continuing from call dummy breakpoint"] then {
365 set new_reg_content [fetch_all_registers \
366 "register contents after stop in call dummy"]
367 if {$old_reg_content == $new_reg_content} then {
368 pass "continue after stop in call dummy preserves register contents"
370 fail "continue after stop in call dummy preserves register contents"
374 # Call function (causing a breakpoint hit in the call dummy) and do a finish,
375 # make sure we are back at main and still have the same register contents.
376 gdb_test "print add(4,5)" "The program being debugged stopped while.*" \
377 "call function causing a breakpoint then do a finish"
379 "Value returned is .* = 9" \
380 "finish from call dummy breakpoint returns correct value"
381 if ![gdb_test "bt 2" \
383 "bt after finishing from call dummy breakpoint"] then {
384 set new_reg_content [fetch_all_registers \
385 "register contents after finish in call dummy"]
386 if {$old_reg_content == $new_reg_content} then {
387 pass "finish after stop in call dummy preserves register contents"
389 fail "finish after stop in call dummy preserves register contents"
393 # Call function (causing a breakpoint hit in the call dummy) and do a return
394 # with a value, make sure we are back at main with the same register contents.
395 gdb_test "print add(4,5)" "The program being debugged stopped while.*" \
396 "call function causing a breakpoint and then do a return"
397 if ![gdb_test "return 7" \
399 "back at main after return from call dummy breakpoint" \
400 "Make add return now. .y or n.*" \
402 set new_reg_content [fetch_all_registers \
403 "register contents after return in call dummy"]
404 if {$old_reg_content == $new_reg_content} then {
405 pass "return after stop in call dummy preserves register contents"
407 fail "return after stop in call dummy preserves register contents"
411 # Call function (causing a breakpoint hit in the call dummy), and
412 # call another function from the call dummy frame (thereby setting up
413 # several nested call dummy frames). Test that backtrace and finish
414 # work when several call dummies are nested.
416 gdb_breakpoint t_small_values
417 gdb_test "print add(2,3)" "The program being debugged stopped while.*" \
418 "stop at nested call level 1"
419 gdb_test "backtrace" \
420 "\#0 add \\(a=2, b=3\\).*\#1 <function called from gdb>.*\#2 main.*" \
421 "backtrace at nested call level 1"
422 gdb_test "print add(4,5)" "The program being debugged stopped while.*" \
423 "stop at nested call level 2"
424 gdb_test "backtrace" \
425 "\#0 add \\(a=4, b=5\\).*\#1 <function called from gdb>.*\#2 add \\(a=2, b=3\\).*\#3 <function called from gdb>.*\#4 main.*" \
426 "backtrace at nested call level 2"
427 gdb_test "print sum10(2,4,6,8,10,12,14,16,18,20)" \
428 "The program being debugged stopped while.*" \
429 "stop at nested call level 3"
430 gdb_test "backtrace" \
431 "\#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.*" \
432 "backtrace at nested call level 3"
433 gdb_test "print t_small_values(1,3,5,7,9,11,13,15,17,19)" \
434 "The program being debugged stopped while.*" \
435 "stop at nested call level 4"
436 gdb_test "backtrace" \
437 "\#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.*" \
438 "backtrace at nested call level 4"
439 gdb_test "finish" "Value returned is .* = 100" \
440 "Finish from nested call level 4"
441 gdb_test "backtrace" \
442 "\#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.*" \
443 "backtrace after finish from nested call level 4"
444 gdb_test "finish" "Value returned is .* = 110" \
445 "Finish from nested call level 3"
446 gdb_test "backtrace" \
447 "\#0 add \\(a=4, b=5\\).*\#1 <function called from gdb>.*\#2 add \\(a=2, b=3\\).*\#3 <function called from gdb>.*\#4 main.*" \
448 "backtrace after finish from nested call level 3"
449 gdb_test "finish" "Value returned is .* = 9" \
450 "Finish from nested call level 2"
451 gdb_test "backtrace" \
452 "\#0 add \\(a=2, b=3\\).*\#1 <function called from gdb>.*\#2 main.*" \
453 "backtrace after finish from nested call level 2"
454 gdb_test "finish" "Value returned is .* = 5" \
455 "Finish from nested call level 1"
456 gdb_test "backtrace" "\#0 main .*" \
457 "backtrace after finish from nested call level 1"
459 set new_reg_content [fetch_all_registers \
460 "register contents after nested call dummies"]
461 if {$old_reg_content == $new_reg_content} then {
462 pass "nested call dummies preserve register contents"
464 fail "nested call dummies preserve register contents"